JP2020178360A - Image display device - Google Patents

Abstract

To provide a head-mounted image display device that can increase the amount of evacuation of an image display unit.SOLUTION: A head-mounted image display device includes an arrangement unit that is arranged at a position according to a forehead part of a user, an image display unit having a left side display unit and a right side display unit that are provided according to the left eye and the right eye of the user and display the image observably by the user, respectively, and a pair of arms that are located on the front side of the arrangement unit, and are rotatably supported by the arrangement unit around the rotation axis along the parallel direction in which the left side display unit and the right side display unit are lined up, and supports the image display unit. The rotation axis is provided on a surface different from the surface of the arrangement unit facing the forehead part, and is located inside both ends of the arrangement unit when viewed from a direction orthogonal to the parallel direction.SELECTED DRAWING: Figure 7

Description

The present invention relates to a head-mounted image display device.

Conventionally, a head-mounted image display device such as an HMD (Head Mounted Display) that is mounted on the user's head is known (see, for example, Patent Document 1).
The head-mounted image display device described in Patent Document 1 includes a first display unit and a second display unit provided at positions facing the left and right eyes of the user, respectively. Each of the first display unit and the second display unit includes a display plate (light guide plate) for displaying an image on the left and right eyes of the user, and an optical unit for projecting an image on the display plate. As a result, the user can visually recognize the image projected from the optical unit.

Further, each of the above display boards is supported by a frame, and each of the frames is positioned so that the display board faces the left and right eyes of the user when the head-mounted image display device is attached to the head. It is connected to the support part that supports the. This support portion includes a band member and an ear hook portion, and is worn by attaching the band member to the back of the head of the user and hanging the ear hook portion on the user's ear.
Further, each of the frames of the head-mounted image display device described in Patent Document 1 is connected to the first connecting portion and the second connecting portion, respectively, and the first connecting portion and the second connecting portion are detachable. It is configured in. Therefore, by attaching and detaching the first connecting portion and the second connecting portion, the head-mounted image display device can be easily attached to the user's head, and the first connecting portion and the second connecting portion are opened ( At the time of division), the band member is hung around the neck so that it can be carried.

JP-A-2015-126396

By the way, the head-mounted image display device described in Patent Document 1 is often used by a worker or the like who performs delicate work and wears a covering member such as a helmet on the head. In addition to the work performed while visually recognizing the display unit of the head-mounted image display device (hereinafter, may be referred to as visual recognition work), such a worker may perform the work while visually recognizing the display unit of the head-mounted image display device. May be performed without visually recognizing (hereinafter, may be referred to as non-visual work).
However, in the head-mounted image display device described in Patent Document 1, for example, when the visible work and the non-visual work are alternately performed, it is necessary to connect and release the first connecting portion and the second connecting portion each time. There is. In other words, the worker needs to attach and detach the head-mounted image display device each time.
For this reason, even when the user (worker) or the like is wearing a covering member such as a helmet, it is desired to have a configuration in which only the image display unit that displays the image can be evacuated from the front of the user (worker). It had been. That is, there has been a demand for a head-mounted image display device capable of increasing the evacuation amount (evacuation distance) of the image display unit.

An object of the present invention is to solve at least a part of the above problems, and an object of the present invention is to provide a head-mounted image display device capable of increasing the amount of evacuation of an image display unit.

The head-mounted image display device according to the first aspect of the present invention is provided according to an arrangement portion arranged at a position corresponding to the forehead portion of the user and the left eye and the right eye of the user, respectively. An image display unit having a left side display unit and a right side display unit that display images observably by the user, and an image display unit having a left side display unit and a right side display unit, respectively, located at a portion on the front side of the arrangement unit, the left side display unit and the right side display unit It has a pair of arms that are rotatably supported by the arrangement portion and support the image display portion about a rotation axis along a parallel direction that is a line-up direction, and the rotation axis is the arrangement portion. It is characterized in that it is provided on a surface different from the surface facing the forehead portion in the above, and is located inside both end portions of the arrangement portion when viewed from a direction orthogonal to the parallel direction.

As the position according to the head of the user, in addition to the head of the user, the position of the head when the user is wearing a covering member such as a helmet or a hat can be exemplified. Further, as the head-mounted image display device, a see-through type head-mounted image display device capable of observing the outside world and a so-called closed-type head-mounted image display device capable of observing the outside world can be exemplified.
According to the first aspect, the pair of arms supporting the left side display portion and the right side display portion provided according to the left eye and the right eye of the user are arranged in the parallel direction in which the left side display portion and the right side display portion are arranged. Since it is configured to be rotatable around a rotation axis along the axis, the pair of arms can be rotated along the rotation axis to move the image display unit in a direction away from the user's eyes. it can. According to this, since the pair of arms rotate about the rotation axis, the head-mounted image display device can be removed from the position corresponding to the user's head when performing non-visual work. The image display unit can be retracted from the front of the eye. That is, the amount of evacuation of the image display unit can be increased. Therefore, it takes time and effort to remove the head-mounted image display device regardless of whether the user performs the visual work of visually recognizing the image display unit or the non-visual work in which the user does not visually recognize the image display unit. Can be omitted, so work efficiency can be improved.

Here, when the rotation shaft is provided on the inner circumference of the arrangement portion, or when the rotation shaft is provided on the outer periphery of the arrangement portion and is provided on both ends of the arrangement portion, the user In order to provide the arrangement portion with a rotation shaft for retracting the flange portion of the covering member according to the shape of the forehead portion and the covering member, it is necessary to extend the arrangement portion to both ends in the parallel direction. Therefore, the head-mounted image display device becomes large.
On the other hand, according to the first aspect, the rotation axis is provided on a surface different from the surface of the arrangement portion facing the forehead portion, and the rotation axis is arranged when viewed from a direction orthogonal to the parallel direction. Since it is located inside the both ends of the portion, the rotating shaft can be provided without extending the arrangement portion to both ends in the parallel direction. Therefore, the head-mounted image display device can be miniaturized.

In the first aspect, each of the pair of arms is displayed by the left side display portion and the right side display portion in contact with the shaft portion rotatably supported by the arrangement portion and the arrangement portion. It is preferable to have a regulating unit that regulates the rotation of the image from an observable observation position to the user side.
According to the first aspect, since the pair of arms is provided with a shaft portion that is rotatably supported by the arrangement portion, the amount of evacuation of the pair of arms can be increased. Further, since the left side display unit and the right side display unit are provided with a regulation unit that regulates the rotation of the image displayed by the right side display unit from the observable observation position to the user side, the image display unit is too close to the user. Thereby, it is possible to suppress that the image displayed by the left side display unit and the right side display unit cannot be observed.

In the first aspect, it is preferable that the shaft portion is supported by the bottom portion of the arrangement portion.
According to the first aspect, since the shaft portion is supported by the bottom portion of the arrangement portion, for example, the arm is supported as compared with the case where the shaft portion is supported by the surface on the side opposite to the user of the arrangement portion. Can stably hold the image display unit supported by.
Further, for example, the rotation range of the arm can be reduced as compared with the case where the shaft portion is supported by the top surface portion located on the side opposite to the bottom surface portion of the arrangement portion. Therefore, the head-mounted image display device can be miniaturized.

In the first aspect, the pair of arms includes a left arm connected to the left display portion and a right arm connected to the right display portion, and the left arm rotates to the arrangement portion. A left shaft portion that can be supported, a left first extension portion that extends from the left shaft portion along the parallel direction to the side opposite to the right arm, and an extension of the left left first extension portion. It has a left second extending portion that is bent at the tip in the direction and is connected to the left end portion of the left display portion, and the right arm is rotatably supported by the arrangement portion on the right side. The shaft portion is bent at the extension direction tip of the right side first extension portion and the right side first extension portion extending from the right side shaft portion along the parallel direction to the side opposite to the left side arm. It is preferable to have a right second extending portion connected to the right end portion of the right display portion.

According to the first aspect, since the left arm and the right arm each have a left shaft portion and a right shaft portion, for example, as compared with the case where each of the left arm and the right arm has one shaft portion. Therefore, the left side display portion and the right side display portion supported by the left side arm and the right side arm can be reliably rotated. Further, the left second extension portion is connected to the left end portion of the left display portion, that is, the end portion on the side opposite to the user, and the right second extension portion is the right end portion of the right display portion. That is, since it is connected to the end portion on the side opposite to the user, the left side second extension portion and the right side second extension portion are connected to the end portion on the user side of the left side display unit and the right side display unit. The left side display unit and the right side display unit can be held more stably than in the case of
Further, for example, when the user wears a covering member such as a helmet on the head, the left second extension portion and the right second extension portion are the end of the left display portion and the right display portion on the user side. If it is connected to the part, the left side second extension part and the right side second extension part may come into contact with the collar of the helmet, etc., and the left side display part and the right side display part may not be retracted from the user's eyes. There is.
On the other hand, according to the first aspect, the left second extension portion and the right second extension portion are connected to the ends of the left display portion and the right display portion in the direction opposite to the user. Therefore, since the left side second extension part and the right side second extension part do not come into contact with the collar, each of the left side display part and the right side display part can be reliably retracted from the front of the user.

In the first aspect, each of the pair of arms and one of the image display units have a slide mechanism that is slidably connected to the other in a direction in which the image display unit is brought into contact with and separated from the arrangement unit. Is preferable.
According to the first aspect, since the image display unit is configured to be slidable in the direction of contacting and separating from the arrangement unit, the distance between the arrangement unit and the image display unit can be adjusted. According to this, since the position of the image display unit can be adjusted according to the position of the user's eyes, the convenience and versatility of the head-mounted image display device can be improved.

In the first aspect, it is preferable to have a band portion extending from the arrangement portion and arranged at a position corresponding to the back of the head of the user.
According to the first aspect, since the arrangement portion is arranged at the position corresponding to the forehead portion and the band portion is arranged at the position corresponding to the back of the head, the forehead portion is attached when the head-mounted image display device is attached. And the back of the head (positions corresponding to the forehead and the back of the head) can be sandwiched by the placement portion and the band portion, respectively. According to this, the head-mounted image display device can be reliably attached (fixed) to the user's head.

In the first aspect, it is preferable that the pad is attached to the forehead side of the arrangement portion, and the pad and the band portion are made of an elastic member.
For example, when the pad connected to the forehead side of the arrangement portion is made of a relatively hard member, the pad does not elastically deform, so that the wearing feeling of the head-mounted image display device deteriorates. In some cases.
On the other hand, according to the first aspect, since the pad is made of an elastic member, the pad is elastically deformed, so that the wearing feeling of the head-mounted image display device can be improved. Further, since the band portion is also composed of an elastic member like the pad, the pad and the band portion are elastically deformed when the head-mounted image display device is attached, so that the forehead portion and the back of the head (front) of the user The forehead and occipital region can be pinched while applying appropriate pressure to the forehead and occipital region, respectively. Therefore, the wearability of the head-mounted image display device can be further improved.

In the first aspect, it is preferable that the arrangement unit includes a control unit that controls at least a part of the image display unit, and the control unit is covered with an inner case.
According to the first aspect, since the control unit is covered with the interior case, for example, even when an impact is applied to the arrangement portion, the stress acting on the control unit due to the impact is applied to the interior case. Can be alleviated by. Therefore, the impact resistance to the control unit can be improved, and the head-mounted image display device can be operated stably.

In the first aspect, the arrangement portion extends from a surface of the arrangement portion on the vertical direction side, extends from the outer edge of the interior case toward both ends of the arrangement portion, and a fluid flowing along the ribs. It is preferable to have a discharge port for discharging the fluid to the outside of the arrangement portion.
Here, when the head-mounted image display device is used outdoors, there is a higher possibility that dust or water will invade the inside of the arrangement portion as compared with the case where the head-mounted image display device is used indoors.
On the other hand, according to the first aspect, the outlet is provided to discharge a fluid such as water flowing along the rib extending from the outer edge of the interior case toward both ends of the arrangement portion to the outside of the arrangement portion. , The dust and water that have flowed into the arrangement can be discharged to the outside of the arrangement. Therefore, it is possible to prevent the control unit and the like arranged in the arrangement portion from being damaged by the fluid flowing into the arrangement portion.

In the first aspect, it is preferable that the arrangement portion is attached to a covering member attached to the head of the user.
Examples of the covering member include a helmet and a hat.
According to the first aspect, the head-mounted image display device is attached to the covering member that protects the user's head. Even in this case, according to the first aspect, when the pair of arms rotates, they do not come into contact with the collar of the helmet, hat, etc., so that the helmet, hat, etc. can be used while wearing them. The person can move the image display unit of the head-mounted image display device from the front of the eyes according to the work performed by the user.
Therefore, it is not necessary to remove the head-mounted image display device from the helmet according to each of the visible work and the non-visual work, so that the work efficiency of the user can be improved. In addition, since the user does not have to remove the helmet equipped with the head-mounted image display device and perform the above-mentioned invisible work because he / she is complicated to remove the head-mounted image display device, the user does not have to do so. Can improve the safety of.

The head-mounted image display device according to the second aspect of the present invention is a head-mounted image display device that is mounted on the user's head and mounted on a covering member having a flange portion. , An arrangement portion of the covering member arranged at a position corresponding to the forehead portion of the user, and an arrangement portion provided according to the left eye and the right eye of the user, respectively, so that the image can be observed by the user. An image display unit having a left side display unit and a right side display unit to be displayed, and a rotation axis located in a portion on the front side of the arrangement unit and along a parallel direction in which the left side display unit and the right side display unit are arranged side by side. The covering member having a pair of arms rotatably supported by the arrangement portion and supporting the image display portion and to which the head-mounted image display device is mounted is placed in the parallel direction. When viewed from the direction along the image, the distance of the first vertical line that passes through the center of the rotation axis and extends from the virtual line along the parallel direction to the upper surface of the image display unit is the distance from the virtual line to the collar portion. It is characterized in that it is larger than the distance of the second vertical line extending to the foremost end.

The front end of the collar is a portion located at the farthest position from the user when the covering member is attached to the head, and the position is orthogonal to the collar in the parallel direction. It is not limited to the central position when viewed from the direction side.
By the way, when the head-mounted display device according to the first aspect is provided on a covering member having a collar portion, a first perpendicular line extending from a virtual line passing through the rotation center of the rotation shaft to the upper surface of the image display portion. When the distance is equal to or less than the distance of the second vertical line extending from the virtual line to the front end of the collar, the image display is retracted from the front of the eyes by rotating the pair of arms, and the image display is retracted from the collar. May come into contact with.
On the other hand, according to the second aspect, when the covering member to which the head-mounted image display device according to the second aspect is mounted is viewed from the direction along the parallel direction, the center of the rotation shaft is set. Since the distance of the first perpendicular line extending from the passing virtual line to the upper surface of the image display unit is larger than the distance of the second perpendicular line extending from the virtual line to the front end of the collar portion, the image display unit is displayed when the arm is rotated. Can be reliably suppressed from coming into contact with the collar. Therefore, the image display unit can be reliably retracted, and damage to the image display unit and, by extension, the head-mounted image display device can be suppressed.

In the second aspect, the rotating shaft is provided on a surface different from the surface of the arrangement portion facing the forehead portion, and both ends of the arrangement portion are viewed from a direction orthogonal to the parallel direction. It is preferably located inside the portion.
According to the second aspect, the same effect as that of the head-mounted image display device according to the first aspect can be obtained.

The side view which shows the virtual image display device which concerns on one Embodiment of this invention. The perspective view which shows the virtual image display device in the said embodiment. 5 views of the virtual image display device according to the above embodiment. The perspective view which shows the inside of the main body part in the said embodiment. The perspective view which shows the lower case in the said embodiment. The perspective view which shows the structure of the image display part in the said embodiment. The front view which shows the virtual image display device in the state which the arm is flipped up in the said embodiment. A side view showing a virtual image display device in a state where the arm is flipped up in the above embodiment. The perspective view which shows the virtual image display device in the state which the arm is flipped up in the said embodiment. The front view which shows the state which the virtual image display device in the said embodiment is attached to a helmet. The side view which shows the state which the virtual image display device in the said embodiment is attached to a helmet. The side view which shows the state which the arm of the virtual image display device in the said embodiment is flipped up.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[Rough configuration of head-mounted image display device]
FIG. 1 is a perspective view showing a state in which the virtual image display device 1 according to the present embodiment is attached to the user US.
The virtual image display device 1 according to the present embodiment corresponds to the head-mounted image display device of the present invention. As shown in FIG. 1, such a virtual image display device 1 corresponds to the above-mentioned portion of the head HD including the head HD of the user US and the wearing portion of the helmet or the like (specifically, the forehead portion HD1 and the occipital region HD2). It is an HMD that is mounted and used in the above position. The virtual image display device 1 is a see-through type HMD that visually displays a virtual image by the user US and allows the outside light to pass through to observe the outside world.

As shown in FIG. 1, the virtual image display device 1 includes a headband unit 2, an image display unit 5, a pair of arms 6 and a controller 7.
Specifically, the virtual image display device 1 according to the present embodiment includes a headband portion 2 (main body portion 3) mounted at a position corresponding to the head HD (forehead portion HD1) of the user US and a user's headband portion 2. An image display unit 5 having an image display device 51L for the left eye and an image display device 51R for the right eye, which are provided according to the left eye and the right eye and display images observably by the user, and a main body unit 3. Rotating axes located on the front side (+ Z direction side) along the parallel direction (+ X direction) in which the left eye image display device 51L and the right eye image display device 51R (see FIG. 2) are lined up. It has a pair of arms 6 rotatably supported by the main body 3 and supports the image display 5, and a rotation shaft is provided on the outer periphery of the main body 3 and in the parallel direction. It is characterized in that it is located inside both ends of the main body 3 when viewed from a direction orthogonal to (+ Z direction).
These configurations will be described in detail below.

In the following description, the + Z direction is the direction orthogonal to the axial direction of the head HD of the user US wearing the virtual image display device 1, and is directed to the outside of the head HD through the center between both eyes. The direction. The + X direction and the + Y direction are orthogonal to each other in the + Z direction and are orthogonal to each other. Of these, the + Y direction is the direction from the jaw side to the crown side along the axial direction of the head HD, and the + X direction is the direction from the left side to the right side when viewed from the user US. The + C direction is a counterclockwise direction when viewed from the + Y direction side in the circumferential direction centered on the axial direction of the head HD.
Further, the + Z direction side refers to the tip end side in the + Z direction, and the −Z direction refers to the base end side in the + Z direction. The same is true for other directions.

[Structure of headband]
The headband portion 2 is a portion that sandwiches the head HD and attaches the virtual image display device 1 to the head HD. As shown in FIG. 1, the headband portion 2 includes a main body portion 3 and a band portion 4. The main body portion 3 corresponds to the arrangement portion of the present invention.

[Structure of main body]
FIG. 2 is a perspective view of the virtual image display device 1 as viewed from the + Z direction side, and FIG. 3 is a five-view view of the virtual image display device 1.
As shown in FIG. 1, the main body 3 is the forehead HD1 of the head HD (when a covering member such as a helmet is attached to the head HD, the forehead HD1 of the user US in these). It is arranged at the position according to the part). As shown in FIGS. 2 and 3, the main body 3 has an arc shape along the + C direction when viewed from the + Y direction side, and gently moves in the −Y direction toward the −Z direction when viewed from the + X direction side. It has an extending arc shape. In other words, the main body portion 3 has a substantially U-shaped arc shape along the forehead portion HD1 of the head HD when viewed from the + Y direction side.

Such a main body 3 is connected to a controller 7 that receives various input operations by the user US for the virtual image display device 1 via a cable CB1. Operation information and image information are transmitted from the controller 7 to the control unit 33 (see FIG. 4). Further, in the present embodiment, the controller 7 is housed in a case (not shown) attached to the band portion 4 and fixed to the occipital region HD2.

[Structure of band part]
As shown in FIG. 1, the band portion 4 attached to the main body portion 3 is formed in an annular shape that surrounds the head HD of the user US. The band portion 4 is a member that extends from the main body portion 3 and is arranged at a position corresponding to the occipital region HD2 of the user US. The band portion 4 is made of an elastic member such as rubber. By attaching such a band portion 4 to the connecting portion 34 of the main body portion 3 and arranging the band portion 4 so as to surround the head HD of the user US, the main body portion 3 and thus the head band portion 2 becomes the head of the user US. It is attached along the part HD.
Further, the connecting portion 34 is located inside both end portions of the image display portion 5 when viewed from the + Z direction side. Therefore, even when the user US wears a covering member such as a helmet provided with irregularities, the band portion 4 can reliably attach the main body portion 3 to the covering member.
Specifically, the main body 3 is configured to be shorter in the horizontal direction (+ X direction) with respect to the head HD of the user US and the helmet M, and corresponds to the head HD of the user US and the forehead HD1 of the helmet M. With the pad 35 of the main body 3 in contact, the band 4 is fixed by being tightened along the shape of the head HD of the user US or the helmet M. For example, since the length of the collar M2 of the helmet M is 4 to 5 cm, the above configuration makes it easy to display a virtual image even if the shape of the user's head HD or the helmet M to be worn is different. 1 can be attached and the flip-up can be performed reliably.

[Outer case configuration]
As shown in FIG. 2 or 3, the main body 3 has an exterior case 31, an imaging unit 32, a control unit 33 (see FIG. 4), and a connection unit 34.
The outer case 31 is formed by being curved in an arc shape (substantially semicircular shape) along the head HD of the user US, and is arranged along the forehead portion HD1. More specifically, the exterior case 31 is arranged along the forehead portion HD1 of the user US and is fixed by the band portion 4.
As shown in FIG. 2, such an outer case 31 has an upper case 311 located on the + Y direction side and a lower case 312 located on the −Y direction side, and the upper case 311 and the lower case 312 have these upper cases 311 and the lower case 312. Combined to form the exterior case 31.

[Upper case configuration]
As shown in FIG. 2, the upper case 311 has an inner surface 3111 curved along the + C direction and an inner surface 3111 so as to be located on the user US side and opposed to the forehead portion HD1 of the user US. It has an outer surface 3112 which is a surface on the opposite side, an upper surface 3113 on the Y direction side, a first opening 3114, and a second opening 3115.
Of these, the first opening 3114 is formed from the outer surface 3112 to the upper surface 3113 at a position corresponding to substantially the center of the upper case 311. An imaging unit 32, which will be described later, is arranged in the first opening 3114.
Further, the second opening 3115 is formed at both ends of the upper case 311. The connection portion 34 is arranged in these second openings 3115.

[Lower case configuration]
FIG. 4 is a perspective view showing the inside of the main body 3 with the upper case 311 removed, and is a perspective view showing the lower case 312, the imaging unit 32, and the control unit 33. Further, FIG. 5 is a perspective view showing the lower case 312.
The lower case 312 supports the control unit 33 to which the image pickup unit 32 is attached, and also rotatably supports the shaft portions 61 of the pair of arms 6 described later. That is, the lower case 312 corresponds to the bottom of the arrangement portion (main body portion 3) of the present invention. Further, the lower case 312 is curved along the + C direction, and is inclined toward the −Y direction toward the −Z direction on the end side in the + C direction and the −C direction.
As shown in FIGS. 4 and 5, the lower case 312 has two openings 3121, an outer wall portion 3122, an inner wall portion 3123, a guide portion 3124, an installation portion 3125, and a support portion 3126 (see FIG. 7).

As shown in FIGS. 4 and 5, the opening 3121 is formed in the vicinity of both ends in the + C direction and the −C direction.
The outer wall portion 3122 is a portion of the lower case 312 that stands up in the + Y direction from the end edge on the side opposite to the user US, that is, on the + Z direction side.
The inner wall portion 3123 is a portion of the lower case 312 that stands up in the + Y direction from the edge on the user US side. The inner wall portion 3123 is an upright portion extending from the bottom surface 312A (the surface of the main body portion 3 on the vertical direction side) at the outer edge of the interior case 332 accommodating the control unit 33, which will be described later, toward both ends of the main body portion 3. That is, the inner wall portion 3123 corresponds to the rib of the present invention, and the fluid flowing along the inner wall portion 3123 is discharged from the opening 3121 to the outside of the main body 3.
As shown in FIG. 5, the guide portion 3124 is a protruding portion formed along the inner wall portion 3123 on the bottom surface 312A in the lower case 312, and is formed at a position on the + Z direction side of the opening 3121, respectively. ing. In the present embodiment, the guide portion 3124 is provided at the respective corresponding positions of the end side in the + C direction and the end side in the −C direction side of the center of the outer case 31.

By these inner wall portions 3123 and guide portions 3124, a flow path P for flowing a liquid (fluid) such as water that has entered (inflowed) into the outer case 31 toward the opening 3121 is provided on the bottom surface 312A in the lower case 312. It is formed. That is, the opening 3121 corresponds to the discharge port of the present invention.
As described above, the lower case 312 is inclined toward the −Y direction toward the opening 3121. That is, the flow path P is formed along the bottom surface 312A inclined in the vertical direction in the vicinity of the opening 3121 when mounted on the upright user US. Therefore, the liquid that has penetrated into the outer case 31 can be efficiently circulated toward the opening 3121 along the bottom surface 312A and the inner wall portion 3123.

As shown in FIG. 5, the installation unit 3125 is located at a portion corresponding to the first opening 3114 formed in the upper case 311, that is, substantially in the center of the lower case 312 in the + X direction, and the imaging unit 32 is attached. This is the part where the control unit 33 is installed. As shown in FIG. 4, the control unit 33 is connected to the cable CB1 connected to the controller and the cable CB2 (see FIG. 6) extending from the image display unit 5. These cables CB1 and CB2 are routed along the lower case 312, and are arranged in a space formed inside by combining the lower case 312 and the upper case 311.
The configuration of the support portion 3126 will be described in detail later.

As shown in FIG. 4, the image pickup unit 32 is arranged so that the image pickup direction faces the + Z direction side at substantially the center of the exterior case 31 in the + X direction, that is, at a position corresponding to the forehead portion HD1 of the user US. The image is taken in front of the user US, that is, a part of the field of view of the user US. Further, such an imaging unit 32 is configured to be rotatable within a predetermined range about a predetermined rotation axis.

[Control unit configuration]
As shown in FIG. 4, the control unit 33 is arranged inside the outer case 31 (that is, the installation unit 3125) with the image pickup unit 32 attached.
The control unit 33 includes a control board 331 as a control device and an inner case 332. In addition to the above, the control unit 33 may include various detectors such as a gyro sensor and a geomagnetic sensor, and various devices such as a receiver that receives a signal from a GPS (Global positioning system) satellite. ..

The control board 331 is communicably connected to each of the controller 7, the image display unit 5, and the image pickup unit 32 via the cables CB1 and CB2, and controls at least a part of the functions of the virtual image display device 1.
Examples of such a function include image display control for displaying an image on the image display unit 5 and various image processes for the displayed image, image control of the image pickup unit 32, and various processes using the captured image. Can be mentioned. Further, as the function, the operation control of the virtual image display device 1 according to the input signal from the controller 7 can be mentioned. That is, the control content and the processing content by the control board 331 are not particularly limited as long as they are at least a part of the functions realized by the virtual image display device 1.

Further, the interior case 332 forms an internal space for accommodating the control board 331 and seals the internal space. That is, the interior case 332 is waterproof by covering the control board 331. Such an interior case 332 is arranged inside the exterior case 31 in a state where the control board 331 is housed, and more specifically, in the installation portion 3125.

As shown in FIG. 3, the pad 35 is a member that is detachably attached to the center of the surface of the main body 3 on the −Z direction side (the surface facing the forehead HD1). The pad 35 comes into contact with the forehead portion HD1 when the virtual image display device 1 is attached, and holds the head HD together with the band portion 4.
Such a pad 35 is an elastic member having an arc shape along the above-mentioned surface, and is formed of rubber, synthetic resin, or the like in the present embodiment. The pad 35 has a hollow inside and is configured to be appropriately elastically deformable. Further, the pad 35 is detachably attached to the surface of the main body 3 on the forehead portion HD1 side.

As such a pad 35, a plurality of types of pads having different dimensions (width dimension) in the + X direction and dimensions (thickness dimension) in the + Z direction are prepared, and the user US can use his / her own head HD. A pad 35 suitable for the shape and size is selected, and the selected pad 35 is attached to the main body 3. Thereby, the wearability of the virtual image display device 1 can be further improved.
The plurality of types of pads 35 include a pad whose surface facing the head HD (forehead HD1) is surface-treated so that liquids such as sweat can easily flow, and also has holes on the surface. It also includes a pad that is formed and has a water absorbing member arranged in the internal space. By using these pads, it is possible to prevent the attached virtual image display device 1 from being displaced by a liquid such as sweat, and to reduce the discomfort caused by the presence of the liquid.

[Structure of image display unit]
FIG. 6 is a diagram showing the inside of the image display device 51 except for a part of the cover member 511.
The image display unit 5 forms an image corresponding to the image information input from the control unit 33 (see FIG. 4), and makes the user US visually recognize the image as a virtual image. As shown in FIG. 6, the image display unit 5 is a pair of image display devices 51 (image display devices for the left eye and the right eye) arranged for each of the right eye and the left eye of the user US. 51L and 51R, respectively) and a substantially U-shaped frame portion 52 that holds a pair of image display devices 51.

Of the pair of image display devices 51, the left eye image display device 51L located on the −X direction side corresponds to the left side display unit of the present invention, and the right eye image display device 51R located on the X direction side is It corresponds to the right side display unit of the present invention. The left-eye image display device 51L and the right-eye image display device 51R have a mirror-symmetrical relationship with each other in the arrangement of their respective configurations. That is, the image display unit 5 is provided according to the left eye and the right eye of the user US, respectively, and the left eye image display device 51L and the right eye image display that display the images observably by the user US. It has a device 51R.
As shown in FIG. 6, each of such a pair of image display devices 51 has a cover member 511, an optical unit 512, a light guide member 513, and an engaging portion 514 (see FIG. 7).

The cover member 511 corresponds to the frame of the present invention, and is a housing for accommodating the optical unit 512 inside. The cover member 511 is provided with a waterproof structure (not shown) that suppresses the intrusion of fluid into the optical unit 512. Therefore, even when the image display device 51 is flipped up by rotating the pair of arms 6 outdoors, the waterproofness of the entire virtual image display device 1 can be maintained.
The optical unit 512 is arranged inside the cover member 511, and the light incident from the light source device is modulated into image light according to the input image information by the light modulation device, and the corresponding light guide member 513 is used. The image light is emitted to. As the optical modulation device, for example, a device using a micromirror such as a liquid crystal panel or a MEMS (Micro Electro Mechanical System) mirror can be adopted.

The light guide member 513 (the light guide members for the right eye and the light guide member for the left eye are 513R and 513L, respectively) is arranged at a position corresponding to the eyes of the user US. The light guide member 513 has a semi-transmissive layer (semi-reflective layer) formed inside, and is configured so that the outside world can be observed through the semi-transmissive layer. In addition, the light guide member 513 is emitted from the optical unit 512 and said to be the same. A virtual image is visually recognized when the image light reflected by the semitransparent layer is incident on the eye. Such a light guide member 513 is mainly formed of a resin (for example, a cycloolefin polymer) that exhibits high light transmittance in the visible light region.

The engaging portion 514 is provided on the base end portion side of the cover member 511, engages with the second extending portion 64 described later, and is in a direction in which the second extending portion 64 is brought into contact with and separated from the main body portion 3. It has a function of fixing it so as to be slidable (see FIG. 7). The engaging portion 514 constitutes the slide mechanism 65 of the present invention together with the second extending portions 64L and 64R (fixing portions 643L and 643R) described later.

The frame unit 52 holds a pair of image display devices 51 on the + Y direction side. The image display device 51L for the left eye is fixed on the −X direction side of the frame portion 52, and the image display device 51R for the right eye is fixed on the + X direction side.
As shown in FIG. 6, such an image display device 51L for the left eye and an image display device 51R for the right eye are connected to a cable CB2 that outputs image information (image signal) to each optical unit 512. The cable CB 2 extends out of the cover member 511, is inserted into the main body 3, and is connected to the control 33.

[Arm configuration]
FIG. 7 is a front view of the virtual image display device 1 in a state where the arm 6 is flipped up in the + Y direction side, and FIG. 8 is a side surface of the virtual image display device 1 in a state where the arm 6 is flipped up in the + Y direction side. FIG. 9 is a perspective view of the virtual image display device 1 in a state where the arm 6 is flipped up in the + Y direction side.
The pair of arms 6 are located in the lower case 312, which is a portion on the front side of the main body 3, and are in the parallel direction (+ X direction) in which the left eye image display device 51L and the right eye image display device 51R are lined up. It is rotatably supported around a rotation axis along the axis and has a function of supporting the image display unit 5. The portion on the front surface side of the main body portion 3 is a range that can be seen from the + Z direction side. Specifically, the front side portion is on the + X direction side of the end portion of the left eye image display device 51L on the −X direction side of the main body portion 3 and in the + X direction of the right eye image display device 51R. It is the range on the -X direction side from the end on the side.
As shown in FIGS. 7 to 9, the pair of arms 6 connects the main body 3 of the headband portion 2 and the cover member 511 of the image display portion 5, and is attached to the lower case 312 of the main body 3. On the other hand, it is rotatably supported.
Further, the pair of arms 6 includes a left arm 6L connected to the left eye image display device 51L and a right arm 6R connected to the right eye image display device 51R. The left arm 6L and the right arm 6R have a mirror-symmetrical relationship with each other in the arrangement of their respective configurations.

Each of these pair of arms 6 includes a shaft portion 61, a connecting portion 62, a first extending portion 63, a second extending portion 64, and a slide mechanism 65.
The shaft portion 61 (the shaft portions of the left arm 6L and the right arm 6R are referred to as the left shaft portion 61L and the right shaft portion 61R, respectively) is a member that is rotatably supported while being exposed to the outside of the main body portion 3. Is. As shown in FIGS. 7 to 9, the shaft portion 61 is rotatably supported by the support portion 3126 in the lower case 312 of the main body portion 3. The support portion 3126 is provided on the outer periphery of the main body portion 3 (lower case 312), and is located inside the both ends of the main body portion 3 when viewed from the + Z direction side. More specifically, it is on the + X direction side of the left eye image display device 51L in the main body 3 on the −X direction side, and more than on the + X direction side end of the right eye image display device 51R. It is located in the range on the -X direction side. In the present embodiment, the support portion 3126 is located on the upper side in the vertical direction with respect to the eyeball of the user facing the left eye image display device 51L and the right eye image display device 51R.
Therefore, the shaft portion 61 supported by the support portion 3126 is also provided on the outer periphery of the main body portion 3 (lower case 312), and is located inside the both ends of the main body portion 3 when viewed from the + Z direction side. There is. Further, since each of the shaft portions 61 is arranged in the direction along the + X direction and supported by the support portion 3126, the shaft portion 61 is the shaft when the virtual image display device 1 is viewed from the −X direction side. It is rotatably supported in an arc shape centered on the portion 61. That is, each of the shaft portions 61L and 61R is separately supported by the two support portions 3126 of the lower case 312.

As shown in FIGS. 7 to 8, the connecting portion 62 (the connecting portion of the left arm 6L and the right arm 6R is referred to as the left connecting portion 62L and the right connecting portion 62R, respectively) extends from the shaft portion 61 and is paired. It is a part connected to each of the arms 6 of the above. The connecting portion 62 is located near the shaft portion 61, abuts on the main body portion 3, and is viewed from an observation position where the image displayed by the left eye image display device 51L and the right eye image display device 51R can be observed. It has a function of restricting rotation to the user US side. Specifically, as shown by the broken lines in FIGS. 1 and 8, each of the connecting portions 62 has a surface on the user US side of the connecting portion 62 that abuts on the lower case 312 that constitutes the main body portion 3. The connection portion 62 is restricted from moving in the + Y direction, and is restricted from rotating toward the user US side of the left eye image display device 51L and the right eye image display device 51R. That is, the connecting portion 62 functions as a regulating portion of the present invention.

Further, the connecting portion 62 has a shape extending in the −Z direction at a position where the image display device 51 can be visually recognized (FIG. 1), and in a + Z direction at a position where the image display device 51 is retracted (FIG. 8). It is a shape that extends to. Further, the dimension of the connecting portion 62 extending from the shaft portion 61 in the −Z direction is larger than the dimension from the shaft portion 61 to the end portion of the main body portion 3 on the + Z direction side. As a result, when the left-eye image display device 51L and the right-eye image display device 51R are moved to a position where they cannot be visually recognized, the connection portion 62 comes into contact with the lower case 312, so that the pair of arms 6 is unnecessarily Rotation in the + S1 direction can be restricted.

[Structure of the left first extension and the left second extension]
As shown in FIG. 7, the first extending portion 63 includes a left first extending portion 63L constituting the left arm 6L and a right first extending portion 63R forming the right arm 6R. The left side first extending portion 63L extends from the left side connecting portion 62L (left side shaft portion 61L) in the direction opposite to the right side arm 6R (−X direction side) along the parallel direction (+ X direction). Specifically, the left first extending portion 63L extends from the supporting portion 3126 of the lower case 312 to the vicinity of the end portion of the lower case 312 on the −X direction side along the bottom surface 312A of the lower case 312. .. The left side second extension portion 64L is connected to the left side first extension portion 63L.

The left second extending portion 64L is bent at the extending direction tip of the left left first extending portion 63L to the left end (-X direction side) of the cover member 511 of the left eye image display device 51L. Be connected. Such a left second extending portion 64L has a bent portion 641L, an L-shaped portion 642L, and a fixing portion 643L. Of these, the bent portion 641L is connected to the tip of the left first extending portion 63L in the −X direction, and is bent toward the left eye image display device 51L side (+ Y direction side in FIGS. 7 to 9). ing. The tip of the bent portion 641L is located on the −X direction side of the lower case 312 of the main body portion 3, and is located on the −X direction side of the left eye image display device 51L on the −X direction side. ..

The L-shaped portion 642L extends from the tip of the bent portion 641L toward the left eye image display device 51L. Specifically, the L-shaped portion 642L extends to the side surface (the surface on the −X direction side) of the cover member 511 of the left eye image display device 51L, and from that position, the base end portion of the cover member 511 (FIGS. 7 to 7 to 7). In FIG. 9, the shape extends toward the end portion on the + Z direction side).
The fixing portion 643L is connected to the tip of the L-shaped portion 642L and is slidably fixed from the outside (−X direction side) of the cover member 511 to the base end portion of the cover member 511. The fixing portion 643L constitutes the left side slide mechanism 65L together with the engaging portion 514 provided in the left eye image display device 51L.

[Structure of the first extension on the right side and the second extension on the right side]
The right first extending portion 63R extends from the right connecting portion 62R (right side shaft portion 61R) in the direction opposite to the left arm 6L (+ X direction side) along the parallel direction (+ X direction). Specifically, the right first extending portion 63R extends from the supporting portion 3126 of the lower case 312 to the vicinity of the end portion of the lower case 312 on the + X direction side along the bottom surface 312A of the lower case 312. The right side second extension portion 64R is connected to the right side first extension portion 63R.

The right second extension portion 64R is bent at the extension direction tip of the right first extension portion 63R and is connected to the right end (+ X direction side) of the cover member 511 of the right eye image display device 51R. Will be done. Such a right second extending portion 64R has a bent portion 641R, an L-shaped portion 642R, and a fixing portion 643R. Of these, the bent portion 641R is connected to the tip of the right first extending portion 63R in the + X direction, and is bent toward the right eye image display device 51R side (+ Y direction side in FIGS. 7 to 9). There is. The tip of the bent portion 641R is located on the + X direction side of the lower case 312 of the main body portion 3, and is located on the + X direction side of the right eye image display device 51R on the + X direction side.

The L-shaped portion 642R extends from the tip of the bent portion 641R toward the image display device 51R for the right eye. Specifically, the L-shaped portion 642R extends to the side surface (the surface on the + X direction side) of the cover member 511 of the right eye image display device 51R, and from that position, the base end portion of the cover member 511 (FIGS. 7 to 7). In No. 9, it has a shape extending toward the end portion on the + Z direction side).
The fixing portion 643R is connected to the tip of the L-shaped portion 642R and is slidably fixed from the outside (+ X direction side) of the cover member 511 to the base end portion of the cover member 511. The fixing portion 643R constitutes the right side slide mechanism 65R together with the engaging portion 514 provided in the image display device 51R for the right eye.

[Structure of slide mechanism]
Each of the pair of arms 6 and one of the image display devices 51 include a slide mechanism 65 that is connected to the other so that the image display device 51 can be slidably attached to and detached from the headband portion 2 (main body portion 3). .. Such a slide mechanism 65 includes a left side slide mechanism 65L for the left side arm 6L and a right side slide mechanism 65R for the right side arm 6R.
The left side slide mechanism 65L is composed of a fixing portion 643L of the left side second extending portion 64L and an engaging portion 514 with which the fixing portion 643L is engaged. Of these, a recess (not shown) is formed on the surface of the fixed portion 643L on the + X direction side. Further, as shown in FIG. 7, the engaging portion 514 arranged in the cover member 511 has protruding portions 5141 and 5142 formed side by side in the + Y direction (direction in which the main body portion 3 is brought into contact with and separated from the main body portion 3) in FIG. Be prepared.
The protruding portion 5141 is located on the −Y direction side (direction closer to the main body portion 3) with respect to the protruding portion 5142. The recess is fixed by engaging any of these protrusions 5141 and 5142. That is, by engaging the concave portion with any of the protruding portions 5141 and 5142, the left second extending portion 64L and, by extension, the left eye image display device 51L slides in the direction of being brought into contact with and separated from the main body portion 3. The distance between the headband portion 2 (main body portion 3) and the left eye image display device 51L can be adjusted.

The right side slide mechanism 65R is composed of a fixing portion 643R of the right second extending portion 64R and an engaging portion 514 with which the fixing portion 643R is engaged. Of these, a recess (not shown) is formed on the surface of the fixing portion 643R on the −X direction side. Further, the engaging portion 514 arranged in the cover member 511 includes protruding portions 5141 and 5142 formed side by side in the + Y direction (direction of contacting and separating from the main body portion 3) in FIG. 7.
The protruding portion 5141 is located on the −Y direction side (direction closer to the main body portion 3) with respect to the protruding portion 5142. The recess is fixed by engaging any of these protrusions 5141 and 5142. That is, by engaging the concave portion with any of the protruding portions 5141 and 5142, the right second extending portion 64R and, by extension, the right eye image display device 51R are slid in the direction of being brought into contact with and separated from the main body portion 3. The distance between the headband portion 2 (main body portion 3) and the image display device 51R for the right eye can be adjusted.

By providing the above-described configuration, the pair of arms 6 retracts the image display device 51 from the observation positions located in front of the left eye and the right eye of the user US and the front of the left eye and the right eye. It can be moved to the retracted position and each position.
For example, when the user US visually recognizes the image display device 51, as shown in FIG. 1, the pair of arms 6 are moved, and the image display device 51 is positioned in front of the left eye and the right eye of the user US. To do.
On the other hand, when the user US does not visually recognize the image display device 51, as shown in FIG. 8, the pair of arms 6 and the image display device 51 located at the observation position shown by the broken line in FIG. It rotates around the portion 61 in the + S1 direction and is fixed at the position shown in FIG. As a result, the image display device 51 is not located in front of the left eye and the right eye of the user US, so that the non-visual work performed without visually recognizing the image display device 51 can be performed by using the virtual image display device 1 on the head HD. Can be done without removing from.

[Helmet wearing mode of virtual image display device]
FIG. 10 is a front view showing a state in which the virtual image display device 1 is attached to the helmet M, and FIG. 11 is a side view showing a state in which the virtual image display device 1 is attached to the helmet M.
As shown in FIGS. 10 and 11, the user US wears a helmet M as a covering member that protects the head HD of the user US. The helmet M includes a covering portion M1 that covers the head HD, and a collar portion M2 that extends from the end portion of the covering portion M1 on the + Z direction side in the + Z direction.
The virtual image display device 1 is attached to the covering portion M1 of the helmet M as shown in FIGS. 10 and 11. Specifically, the virtual image display device 1 is mounted and used at a mounting portion of the covering portion M1 (specifically, a position corresponding to the above-mentioned portion of the head HD including the forehead portion HD1 and the occipital region HD2).

As shown in FIGS. 10 and 11, the main body portion 3 is arranged at a position corresponding to a portion of the covering portion M1 corresponding to the forehead portion HD1 of the head HD. Further, the band portion 4 is connected to the connecting portion 34 of the main body portion 3 and is arranged so as to surround the head HD of the user US in the covering portion M1, so that the main body portion 3 and thus the head band portion 2 becomes the helmet M. It is mounted at a position corresponding to the head HD of the user US in the covering portion M1 of the above.
Further, the controller 7 is housed in a case (not shown) attached to the band portion 4, and is fixed at a position corresponding to the occipital region HD2 of the covering portion M1.

FIG. 12 is a side view showing a state in which the arm 6 of the virtual image display device 1 attached to the helmet M is flipped up.
For example, when the user US visually recognizes the image display device 51, as shown in FIGS. 10 and 11, the pair of arms 6 are moved, and the image display device 51 is the left eye and the right eye of the user US. Located in front.
On the other hand, when the user US does not visually recognize the image display device 51, as shown in FIG. 12, the pair of arms 6 and the image display device 51 located at the observation position shown by the broken line in FIG. It rotates around the portion 61 in the + S1 direction and is fixed at the position shown in FIG.
Here, when the helmet M to which the virtual image display device 1 is mounted is viewed from the + X direction side, the image display device 51 passes through the center of the shaft portion 61 and from a virtual line along the parallel direction (+ X direction). The distance L1 of the first perpendicular line extending to the upper surface 510 (the surface on the −Y direction side in FIG. 12) is the distance L1 of the second perpendicular line extending from the virtual line to the foremost end of the collar portion M2 (the portion farthest from the user US). Greater than the distance L2. When the upper surface of the image display device 51 is curved, the distance extended by the curvature may be added to the distance L1.
With such a configuration, the pair of arms 6 are moved to the positions shown in FIG. 12 without contacting the collar portion M2 of the helmet M. As a result, the image display device 51 is not positioned in front of the left eye and the right eye of the user US, so that the non-visual work performed without visually recognizing the image display device 51 can be performed from the helmet M on the virtual image display device 1. It can be executed without removing it.

[Effect of Embodiment]
The virtual image display device 1 according to the present embodiment described above has the following effects.
The pair of arms 6 that support the left eye image display device 51L and the right eye image display device 51R provided according to the left eye and the right eye of the user US are the left eye image display device 51L and the right eye. Since the image display device 51R is rotatably configured around a rotation axis along the parallel direction (+ X direction) in which the image display devices 51R are lined up, the pair of arms 6 rotate along the rotation axis to obtain an image. The display device 51 can be moved in a direction away from the eyes of the user US. According to this, since the pair of arms 6 rotate around the rotation axis, the virtual image display device 1 is set according to the head HD of the user US or the head HD when performing the non-visual operation. The image display device 51 can be retracted from the front of the eye without being removed from the vertical position. That is, the amount of evacuation of the image display device 51 can be increased. Therefore, the virtual image display device 1 is removed regardless of whether the user US performs a visual operation for visually recognizing the image display device 51 or a non-visual work for which the user US does not visually recognize the image display device 51. Since the labor can be saved, the work efficiency can be improved.
Further, since the shaft portion 61 is provided on the outer periphery of the main body portion 3 and is located inside the both ends of the main body portion 3 when viewed from the + Z direction, the helmet M is provided with the collar portion M2. In this case, the shaft portions 61 for retracting the collar portion M2 of the helmet M according to the shape of the head HP of the user US and the helmet M are placed on both ends of the main body portion 3 in the direction along the + X direction. It can be installed without extending it.

Since the pair of arms 6 includes a shaft portion 61 that is rotatably supported by the main body portion 3 of the headband portion 2, the amount of retracting of the pair of arms 6 can be increased. Further, the connection unit 62 is provided as a regulation unit that regulates the rotation of the image displayed by the left eye image display device 51L and the right eye image display device 51R from the observable observation position to the user US side. Therefore, it is possible to prevent the image displayed by the left-eye image display device 51L and the right-eye image display device 51R from being unobservable due to the image display device 51 being too close to the user US.

Since the shaft portion 61 is supported by the bottom of the lower case 312 of the main body portion 3, for example, when the shaft portion 61 is supported by the surface of the main body portion 3 in the direction opposite to the user US (+ Z direction). The image display device 51 supported by the arm 6 can be stably held as compared with the above.
Further, since the shaft portion 61 is located at the bottom of the lower case 312 of the main body portion 3, for example, as compared with the case where the shaft portion 61 is located at the upper surface 510 on the + Y direction side of the upper case 311 of the main body portion 3. Therefore, the rotation range of the arm 6 can be reduced. Therefore, the virtual image display device 1 can be miniaturized.

Since each of the left arm 6L and the right arm 6R has a left shaft portion 61L and a right shaft portion 61R, for example, as compared with the case where each of the left arm 6L and the right arm 6R has one shaft portion, The left-eye image display device 51L and the right-eye image display device 51R supported by the left arm 6L and the right arm 6R can be reliably rotated. Further, the left second extension portion 64L is connected to the left end portion of the left eye image display device 51L, that is, the end portion on the side opposite to the user US, and the right side second extension portion 64R is the right eye. Since it is connected to the right end of the image display device 51R, that is, the end on the side opposite to the user US, the left second extension 64L and the right second extension 64R are for the left eye. Compared with the case where the image display device 51L and the right eye image display device 51R are connected to the end of the user US side, the left eye image display device 51L and the right eye image display device 51R are more stable. Can be retained.

Further, when the user US wears a covering member such as a helmet M on the head HD, the left second extension portion 64L and the right second extension portion 64R are the left eye image display device 51L and the right eye. When connected to the end of the image display device 51R on the user US side, the left second extending portion 64L and the right second extending portion 64R come into contact with the flange portion M2 of the helmet M for the left eye. There is a possibility that each of the image display device 51L and the image display device 51R for the right eye cannot be retracted from the front of the user US.
On the other hand, according to the present embodiment, the left second extending portion 64L and the right second extending portion 64R are in the opposite directions to the user US of the left eye image display device 51L and the right eye image display device 51R. Since the left side second extension portion 64L and the right side second extension portion 64R do not come into contact with the flange portion M2 because they are connected to the side end portion, the left eye image display device 51L and the right eye image Each of the display devices 51R can be reliably retracted from the front of the user US.

Since the image display device 51 is configured to be slidable in a direction in which the headband portion 2 is brought into contact with and separated from the main body portion 3, the distance between the main body portion 3 and the image display device 51 can be adjusted. According to this, since the position of the image display device 51 can be adjusted according to the position of the eyes of the user US, the convenience and versatility of the virtual image display device 1 can be improved.

Since the main body 3 is arranged at a position corresponding to the forehead HD1 and the band 4 is arranged at a position corresponding to the occipital region HD2, the forehead HD1 and the occipital region HD2 (forehead) when the virtual image display device 1 is attached. The position corresponding to the part HD1 and the back of the head HD2) can be sandwiched by each of the main body part 3 and the band part 4. According to this, the virtual image display device 1 can be reliably attached (fixed) to the head HD of the user US.

For example, when the pad 35 connected to the forehead portion HD1 side of the main body portion 3 is made of a relatively hard member, the pad 35 does not elastically deform, so that the wearing feeling of the virtual image display device 1 is poor. May become.
On the other hand, according to the present embodiment, since the pad 35 is made of an elastic member such as rubber or synthetic resin, the pad 35 is elastically deformed to improve the wearing feeling of the virtual image display device 1. Can be done. Further, since the band portion 4 is also composed of the elastic member like the pad 35, the pad 35 and the band portion 4 are elastically deformed when the imaginary image display device 1 is attached, so that the forehead portion HD1 of the user US And the occipital region HD1 and the occipital region HD2 can be sandwiched while applying appropriate pressure to the forehead portion HD1 and the occipital region HD2 (positions corresponding to each of the forehead portion HD1 and the occipital region HD2). Therefore, the wearability of the virtual image display device 1 can be further improved.

Since the control board 331 is covered by the inner case 332, for example, even when an impact is applied to the main body 3, the stress acting on the control board 331 due to the impact can be relaxed by the inner case 332. .. Therefore, the impact resistance to the control board 331 can be improved, and the virtual image display device 1 can be operated stably.

Here, when the virtual image display device 1 is used outdoors, there is a higher possibility that dust or water will enter the inside of the main body 3 as compared with the case where the virtual image display device 1 is used indoors.
On the other hand, according to the present embodiment, a fluid such as water flowing along the inner wall portion 3123 as a rib extending from the outer edge of the inner case 332 toward both ends of the lower case 312 of the outer case 31 in the main body portion 3. Since the opening 3121 is provided as a discharge port for discharging the water to the outside of the main body 3 (exterior case 31), the dust and water that have flowed into the main body 3 can be discharged to the outside of the main body 3. Therefore, it is possible to prevent the control board 331 and the like arranged in the main body 3 from being damaged by the fluid flowing into the main body 3.

According to the present embodiment, even when the virtual image display device 1 is attached to the covering portion M1 of the helmet M which is attached to the head HD of the user US and protects the head HD of the user US. When the pair of arms 6 rotate in the + S1 direction, the helmet M does not come into contact with the flange portion M2, so that the user US uses the image display device 51 of the virtual image display device 1 mounted on the helmet M. It can be moved from the front of the eye according to the work performed by the user US.
Therefore, it is not necessary to remove the virtual image display device 1 from the helmet M according to each of the visible work and the non-visual work, so that the work efficiency of the user US can be improved. Further, since the user US does not care about removing the virtual image display device 1 and does not remove the helmet M to which the virtual image display device 1 is attached to perform the above-mentioned invisible work, the safety of the user US Can be improved.

When the helmet M to which the virtual image display device 1 is mounted is viewed from the + X direction side, the upper surface 510 of the image display device 51 (from the virtual line passing through the center of the shaft portion 61 and along the parallel direction (+ X direction)) Since the distance L1 of the first perpendicular line extending to the surface on the −Y direction side in FIG. 12 is larger than the distance L2 of the second perpendicular line extending from the virtual line to the foremost end of the flange portion M2, the pair of arms 6 are rotated. At this time, it is possible to reliably prevent the image display device 51 from coming into contact with the flange portion M2. Therefore, the image display device 51 can be reliably retracted, and damage to the image display device 51 and, by extension, the virtual image display device 1 can be suppressed.

[Modification of Embodiment]
The present invention is not limited to the above-described embodiment, and modifications, improvements, and the like within the range in which the object of the present invention can be achieved are included in the present invention.
In the above embodiment, the connecting portion 62 is provided as a regulating portion, and the surface of the connecting portion 62 on the user US side comes into contact with the bottom of the lower case 312, so that the image displayed by the image display device 51 can be observed. It was decided to regulate the rotation from the observation position to the user US side. However, the present invention is not limited to this. For example, the connecting portion 62 that functions as a regulating portion may not be provided, and in this case, the first extending portion 63 may be connected to the shaft portion 61. In this case, the first extension unit 63 functions as the regulation unit. Further, another structure that regulates the rotation of the image displayed by the image display device 51 from the observable observation position to the user US side may be provided.

In the above embodiment, the shaft portion 61 (left shaft portion 61L and right shaft portion 61R) is supported by the support portion 3126 formed on the bottom portion (the surface on the −Y direction side) of the lower case 312 of the main body portion 3, respectively. I decided to be there. However, the present invention is not limited to this. For example, the support portion 3126 may be provided on the surface of the upper case 311 on the + Z direction side, and the shaft portion 61 may be provided on the surface. Even in this case, substantially the same effect as that of the above embodiment can be obtained.

In the above embodiment, the left shaft portion 61L and the right shaft portion 61R are provided. However, the present invention is not limited to this. For example, the left arm 6L and the right arm 6R may each be connected to one shaft portion. In this case, one shaft portion may be provided substantially at the center of the lower case 312 on the surface on the −Y direction side.

In the above embodiment, the second extension portion 64 (the second extension portion 64L on the left side and the second extension portion 64R on the right side) has bent portions 641L, 641R, L-shaped portions 642L, 642R, and fixed portions 643L, 643R. I decided to have it. However, the present invention is not limited to this. For example, the L-shaped portions 642L and 642R do not have to be L-shaped, have a shape that hangs down from the tip of the bent portion 641L in the −Y direction, and the tip portion of the shape is the image display device 51L, 51R. It may be slidably fixed to the outside of the. In this case, the fixed portions 643L and 643R may not be provided.

In the above embodiment, the engaging portion 514 constituting the slide mechanism 65 is provided with two protruding portions 5141 and 5142. However, the present invention is not limited to this. For example, the engaging portion 514 may include three or more protruding portions. In this case, since the recesses of the fixing portions 643L and 643R are engaged with any of the three or more protruding portions, the distance between the headband portion 2 (main body portion 3) and the image display device 51 is larger than that of the above embodiment. Can be finely adjusted.
Further, the engaging portion 514 may have two or more recesses, and the fixing portions 643L and 643R may have a protruding portion that engages with the recesses. Even in this case, the same effect as that of the above embodiment can be obtained.
Further, the configuration of the slide mechanism 65 is not limited to the above configuration, and any configuration may be used as long as the positions of the fixing portions 643L and 643R can be fixed at a plurality of positions.
In the above embodiment, the slide mechanism 65 is provided. However, the present invention is not limited to this. For example, the slide mechanism 65 may not be provided.

In the above embodiment, the control board 331 is configured by mounting an electronic circuit on the board. However, the present invention is not limited to this. For example, a control unit in which electronic components such as a control circuit are directly mounted inside the inner case 332 may be adopted without providing a substrate.
In addition to the configuration in which wiring is formed on the circuit board as a control unit in which each electronic component and a plurality of circuit boards are connected by wiring, the inner surface of a case such as an exterior case 31 or an interior case 332 can be used. A control unit having various wiring configurations such as a configuration in which wiring is directly formed on the outer surface of the inner case 332 and a configuration in which wiring members such as wires are three-dimensionally arranged (aerial wiring) may be used. Further, a control device configured so that a plurality of circuit boards and electronic components can communicate with each other by wireless communication means may be used.

In the above embodiment, the outer case 31 and the inner case 332 arranged inside the outer case 31 and accommodating the control board 331 are provided, and the inner case 332 is waterproof. .. However, the present invention is not limited to this, and the outer case 31 may have waterproofness. In this case, the interior case 332 does not have to be waterproof, but by having the waterproof property, deterioration of the control board 331 can be suppressed more reliably.

In the above embodiment, two cases are provided, an outer case 31 and an inner case 332 arranged inside the outer case 31 and accommodating the control board 331. However, the present invention is not limited to this. For example, it may be configured to include three or more cases.
Further, the configuration may include cases having a plurality of different functions. For example, a waterproof first interior case is arranged in the exterior case 31, and a second interior case that functions as an electromagnetic shield is arranged in the first interior case, and a control device (control board 331) is arranged. ) May be adopted, such as a configuration in which at least a part of) is arranged in the second interior case.
Further, the interior case 332 arranged inside the exterior case 31 may be visible from the gap of the exterior case 31, or may be completely covered by the exterior case 31.

In the above embodiment, the interior case 332 has the above-mentioned waterproof property. However, the present invention is not limited to this. For example, the interior case 332 does not have to be waterproof. Even with such a configuration, the impact resistance to the control board 331 can be improved by storing the control board 331 in the inner case 332. By providing the inner case 332 with waterproofness as in the above embodiment, it is not necessary to adopt a configuration having high waterproofness in the outer case 31, and the degree of freedom in designing the outer case 31 can be improved. ..

In the above embodiment, the headband portion 2 includes a main body portion 3 and a band portion 4. However, the present invention is not limited to this. For example, the main body 3 may be configured in a substantially circular shape to be attached to the head HD of the user US.
In the above embodiment, the pad 35 and the band 4 attached to the main body 3 are made of elastic members such as rubber and synthetic resin. However, the present invention is not limited to this. For example, at least one of the pad 35 and the band portion 4 does not have to be composed of an elastic member.

In the above embodiment, the band portion 4 is band-shaped and is arranged around the head HD including the occipital HD 2 of the user US. However, the present invention is not limited to this. That is, the band portion 4 is not particularly limited as long as the exterior case 31 can be arranged along the user US.
For example, when the virtual image display device 1 is arranged along the head HD of the user US as a mounting portion, a head cap type mounted by covering the head HD or a plurality of bands along the head HD is mounted as a mounting member. A cross-band type configuration in which the heads intersect at the crown (cross band type when there are two bands) may be adopted.

In the above embodiment, the outer case 31 of the main body 3 is formed in a substantially semicircular shape (substantially U-shaped). However, the present invention is not limited to this. That is, when the head HD of the user US is used as the wearing portion, the headband portion 2 is attached to the head HD of the user US (along the + C direction centered on the central axis of the head HD and both eyes. It may be configured so that it can be arranged along a portion above the passing line), and may have, for example, at least a part having an arc-shaped inner surface along the forehead portion HD1 of the head HD.

In the above embodiment, the head HD of the user US is used as the wearing portion, and the main body portion 3 constituting the headband portion 2 is curved along the head HD (forehead portion HD1). However, the present invention is not limited to this. For example, a portion other than the head HD, such as a lateral portion of the face of the user US, may be used as the wearing portion. In such a case, the outer case 31 of the main body portion corresponding to the headband portion 2 may have a shape along the mounting portion and may be configured to be dispositionable along the mounting portion.

In the above embodiment, the bottom surface 312A of the lower case 312 has an inner wall portion 3123 and a guide portion 3124, and the inner wall portion 3123 and the guide portion 3124 form a flow path P for flowing the liquid flowing into the outer case 31. It was. However, the present invention is not limited to this.
For example, the flow path P may be provided with a guide portion at an arbitrary position inside the outer case 31 as long as the liquid inside the outer case 31 can be discharged to the outside. Further, the discharge port (opening 3121) may also be provided at a position corresponding to the flow path P. Further, only the discharge port (opening 3121) may be provided without providing the guide portion. It is not necessary to provide the flow path P or the discharge port (opening 3121).

In the above embodiment, the imaging unit 32 is rotated around a rotation axis parallel to the + X direction, and the imaging direction can be adjusted in one direction. However, the present invention is not limited to this. That is, the imaging direction may be adjustable in other directions, or the imaging direction may be fixed. Further, it is not necessary to provide the imaging unit 32.

In the above embodiment, the image display unit 5 has each of the left eye image display device 51L and the right eye image display device 51R. However, the present invention is not limited to this. For example, the image display unit 5 may have only one of the left eye image display device 51L and the right eye image display device 51R. Even in this case, if the configuration of the shaft portion 61 can be applied and the distance L1 of the first perpendicular line is set to be larger than the distance L2 of the second perpendicular line, the pair of arms 6 are rotated. At this time, it is possible to reliably prevent the image display device 51 from coming into contact with the flange portion M2.

In the above embodiment, the shaft portion 61 is supported by the bottom portion of the lower case 312 of the main body portion 3. However, the present invention is not limited to this. For example, the shaft portion 61 may be provided on the top surface of the upper case 311 of the main body portion 3 and the surface of the upper case 311 on the + Z direction side. That is, the shaft portion 61 may be provided on any surface as long as it is different from the surface of the main body portion 3 facing the forehead portion HD1.
Further, the shaft portion 61 may be provided inside the main body portion 3, for example. In this case, the main body 3 may be provided with a notch in which the connecting portion 62 extending from the shaft 61 of the main body 3 can move in the + S1 direction. According to this, the same effect as that of the above-described embodiment can be obtained.

In the above embodiment, a controller 7 that receives various input operations by the user US is connected, and a part of the functions of the virtual image display device 1 is controlled by the control unit 33 in response to the input from the controller 7. However, the present invention is not limited to this.
For example, in a configuration in which the controller 7 is connected, one of the virtual image display device 1 and the controller 7 has a function of acquiring operation information according to the operation of the user US and a function of acquiring image information and using the image information. It may be configured to have at least one of a function of driving the image display device 51 and a function of supplying electric power, and the other having the remaining functions.

Further, the virtual image display device 1 may be connected to the image supply device (PC or the like) via the controller 7, or may be directly connected to the image supply device without the controller 7. In such a configuration, the virtual image display device 1 may be used as an image display portion in the image supply device, and various operations of the virtual image display device 1 may be controlled by the image supply device. In this case, the image supply device may supply electric power for driving the virtual image display device 1.
Further, a control device such as a battery or an image processing device may be arranged in the virtual image display device 1 (for example, the headband unit 2 or the image display device 51), and even if a slot such as a memory card is provided. Good. Further, the virtual image display device 1 may be provided with an operation unit that accepts the operation of the user US, or may be provided with a configuration capable of detecting the tap operation. That is, the controller 7 may not be necessary.

In the above embodiment, the controller 7 is housed in a case (not shown) and fixed to the occipital region HD2. However, the present invention is not limited to this. The controller 7 may not be housed in a case (not shown) or may not be fixed to the occipital HD2. For example, the controller 7 may be housed in a case different from the case (not shown above) and may be attached to the arm of the user US, or may be attached to the waist (for example, a belt) of the user US. You may do so. That is, the fixed position of the controller 7 is not limited.

In the above embodiment, the helmet M is exemplified as a covering member that protects the head HD of the user US. However, the present invention is not limited to this. For example, the covering member may be not only a helmet provided with a collar portion M2, but also a helmet not provided with a collar portion M2, a hat (cap), or the like. Even in this case, the same effect as that of the above embodiment can be obtained.

In the above embodiment, the see-through type virtual image display device 1 is exemplified as the head-mounted image display device according to the present invention. However, the present invention is not limited to this. For example, the head-mounted image display device may be a so-called closed type display device. Further, the displayed image may be a 2D image or a 3D image.

1 ... Virtual image display device (head-mounted image display device), 2 ... Headband part, 3 ... Main body part (arrangement part), 31 ... Exterior case, 311 ... Upper case, 312 ... Lower case (bottom), 3121: Opening (exhaust port), 3123 ... Inner wall (rib), 312A ... Bottom surface, 32 ... Imaging unit, 331 ... Control board (control unit), 332 ... Interior case, 35 ... Pad, 4 ... Band, 5 ... Image Display unit, 51 ... Image display device, 51L ... Left eye image display device, 51R ... Right eye image display device, 511 ... Cover member (frame), 512 ... Optical unit, 513 ... Light guide member, 513L ... Left eye Light guide member for right eye 513R ... Light guide member for right eye 514 ... Engagement part (slide mechanism), 5141 ... Projection part, 5142 ... Protrusion part, 52 ... Frame part, 6 ... Pair of arms, 61 ... Shaft part, 61L ... Left shaft part, 61R ... Right shaft part, 62 ... Connection part (regulatory part), 62L ... Left side connection part (regulatory part), 62R ... Right side connection part (regulatory part), 63 ... First extension part, 63L ... 1st extension part, 63R ... 1st extension part, 64 ... 2nd extension part, 643L ... Fixed part, 643R ... Fixed part, 64L ... 2nd extension part, 64R ... 2nd extension part, 65 ... slide mechanism, 65L ... left slide mechanism, 65R ... right side slide mechanism, 6L ... left arm, 6R ... right arm, 7 ... controller, HD ... head, HD1 ... forehead, HD2 ... back head, M ... helmet (covered) (Member), M1 ... Main body, M2 ... Image, US ... User.

The present invention relates to images display.

By the way, the head-mounted image display device described in Patent Document 1 is often used by a worker or the like who performs delicate work and wears a covering member such as a helmet on the head. In addition to the work performed while visually recognizing the display unit of the head-mounted image display device (hereinafter, may be referred to as visual recognition work), such a worker may perform the work while visually recognizing the display unit of the head-mounted image display device. May be performed without visually recognizing (hereinafter, may be referred to as non-visual work).
However, in the head-mounted image display device described in Patent Document 1, for example, when the visible work and the non-visual work are alternately performed, it is necessary to connect and release the first connecting portion and the second connecting portion each time. There is. In other words, the worker needs to attach and detach the head-mounted image display device each time.
For this reason, even when the user (worker) or the like is wearing a covering member such as a helmet, it is desired to have a configuration in which only the image display unit that displays the image can be evacuated from the front of the user (worker). It had been. That is, retraction of the image display unit (save distance) Ru can enlarge the images display device has been demanded.

Claims (9)

An arrangement part that is arranged at a position according to the forehead part of the user,
An image display unit having a left side display unit and a right side display unit, which are provided according to the left eye and the right eye of the user and display the image observably by the user, respectively.
The image is located at a portion on the front surface side of the arrangement portion, and is rotatably supported by the arrangement portion about a rotation axis along a parallel direction in which the left side display portion and the right side display portion are arranged. It has a pair of arms that support the display unit, and
The rotation shaft is provided on a surface different from the surface of the arrangement portion facing the forehead portion, and is located inside the both ends of the arrangement portion when viewed from a direction orthogonal to the parallel direction. And
Each of the pair of arms
A shaft portion rotatably supported by the arrangement portion and
It has a left side display unit and a regulation unit that restricts the image displayed by the right side display unit from rotating toward the user side from an observable observation position in contact with the arrangement unit.
A head-mounted image display device, wherein the shaft portion is supported by the bottom portion of the arrangement portion. An arrangement part that is arranged at a position according to the forehead part of the user,
An image display unit having a left side display unit and a right side display unit, which are provided according to the left eye and the right eye of the user and display the image observably by the user, respectively.
The image is located at a portion on the front surface side of the arrangement portion, and is rotatably supported by the arrangement portion about a rotation axis along a parallel direction in which the left side display portion and the right side display portion are arranged. It has a pair of arms that support the display unit, and
The rotation shaft is provided on a surface different from the surface of the arrangement portion facing the forehead portion, and is located inside the both ends of the arrangement portion when viewed from a direction orthogonal to the parallel direction. And
The pair of arms
The left arm connected to the left display unit and
Includes a right arm connected to the right display
The left arm
A left shaft portion rotatably supported by the arrangement portion and
A left first extending portion extending from the left shaft portion along the parallel direction to the side opposite to the right arm,
It has a left side second extension portion that is bent at the tip of the left side first extension portion in the extension direction and is connected to the left end portion of the left side display portion.
The right arm
A right-hand shaft portion rotatably supported by the arrangement portion and
A right first extending portion extending from the right shaft portion along the parallel direction to the side opposite to the left arm.
A head-mounted type having a right-side second extension that is bent at the tip of the right-side first extension in the extension direction and is connected to the right end of the right-side display. Image display device. An arrangement part that is arranged at a position according to the forehead part of the user,
An image display unit having a left side display unit and a right side display unit, which are provided according to the left eye and the right eye of the user and display the image observably by the user, respectively.
The image is located at a portion on the front surface side of the arrangement portion, and is rotatably supported by the arrangement portion about a rotation axis along a parallel direction in which the left side display portion and the right side display portion are arranged. It has a pair of arms that support the display unit, and
The rotation shaft is provided on a surface different from the surface of the arrangement portion facing the forehead portion, and is located inside the both ends of the arrangement portion when viewed from a direction orthogonal to the parallel direction. And
The arrangement part
A control unit that is covered by an interior case and controls at least a part of the image display unit.
Ribs extending from the vertical side surface of the arrangement portion and extending from the outer edge of the interior case toward both ends of the arrangement portion.
A head-mounted image display device having a discharge port for discharging a fluid flowing along the rib to the outside of the arrangement portion. In the head-mounted image display device according to any one of claims 1 to 3.
Each of the pair of arms and one of the image display units have a head having a slide mechanism that is slidably connected to the other in a direction in which the image display unit is brought into contact with the arrangement unit. Wearable image display device. In the head-mounted image display device according to any one of claims 1 to 4.
A head-mounted image display device having a band portion extending from the arrangement portion and arranged at a position corresponding to the back of the head of the user. In the head-mounted image display device according to claim 5.
It has a pad that is attached to the surface of the arrangement portion on the forehead side.
A head-mounted image display device in which the pad and the band portion are made of an elastic member. In the head-mounted image display device according to any one of claims 1 to 6.
The head-mounted image display device, wherein the arrangement portion is attached to a covering member attached to the head of the user. A head-mounted image display device that is mounted on the user's head and mounted on a covering member having a collar.
An arrangement portion arranged at a position corresponding to the forehead portion of the user of the covering member, and an arrangement portion.
An image display unit having a left side display unit and a right side display unit, which are provided according to the left eye and the right eye of the user and display the image observably by the user, respectively.
The image is located at a portion on the front surface side of the arrangement portion, and is rotatably supported by the arrangement portion about a rotation axis along a parallel direction in which the left side display portion and the right side display portion are arranged. It has a pair of arms that support the display unit, and
When the covering member to which the head-mounted image display device is mounted is viewed from a direction along the parallel direction, the image is displayed from a virtual line passing through the center of the rotation axis and along the parallel direction. A head-mounted image display device characterized in that the distance of the first perpendicular line extending to the upper surface of the portion is larger than the distance of the second perpendicular line extending from the virtual line to the foremost end of the flange portion. In the head-mounted image display device according to claim 8.
The rotation shaft is provided on a surface different from the surface of the arrangement portion facing the forehead portion, and is located inside the both ends of the arrangement portion when viewed from a direction orthogonal to the parallel direction. A head-mounted image display device characterized by being

Images