JP6604229B2 - Head mounted display - Google Patents

Description

  The present invention relates to a head mounted display.

  In recent years, a head-mounted display that is worn on the head of a human body and allows the wearer to visually recognize an image, and a wearable computer using the head-mounted display have been developed. If the head-mounted display is connected to a mobile computer, a computer graphic screen is formed as a virtual image in front of the user's eyes, thus providing a wearable computer that can be mounted on the user's head.

As a specific form of the head mounted display, as described in Patent Documents 1 and 2, there is a head mounted display that projects an image on at least one eye.
Patent Documents 1 and 2 describe a head-mounted display that can be switched between a right-eye display form that projects an image to the right eye and a left-eye display form that projects an image to the left eye.
Patent Documents 1 and 2 describe an image display unit that is supported by a hair band-shaped or ring-shaped head-mounted device.
In the invention described in Patent Document 1, the image display unit can be converted into a right-eye display form and a left-eye display form by inverting the image display unit vertically and horizontally and inverting the whole.
In the invention described in Patent Document 2, the right-eye display mode is achieved by holding the image display unit so as to be movable between the right eye and the left eye without re-mounting the head-mounted device. And the left-eye display form.

Japanese Patent Laid-Open No. 2001-07496 JP 09-318905 A

The head-mounted display is desirably small and light because it is attached to the head.
However, since the image display unit incorporates a heat source such as an LED light source or a reflective liquid crystal, there is a concern that the life of the electrical components will be shortened if the heat is not dissipated, or the wearer may be burned due to the heat generated by the image display unit. is there.
In order to dissipate heat, a heat conductive heat dissipating member having a certain surface area is required, and the heat dissipating property is improved by increasing the heat dissipating member. .
In any of the inventions described in Patent Documents 1 and 2, the head wearing tool that supports the image display unit is in close contact with the head in the form of a hair band or a ring. Difficult to escape to wearing equipment. In addition, since such a hair band-shaped or ring-shaped head mounting portion does not have a portion to receive in the vertical direction (mounting portion), in order to prevent sliding down during mounting, It is necessary to increase the holding force for tightening, and it is difficult to mount for a long time, and it becomes increasingly difficult to take measures to dissipate heat from the image display unit to the head mounting tool.
If it is attempted to secure the necessary heat dissipation only with the image display unit without releasing heat to the head-mounted device, as described above, the image display unit is provided with a large heat dissipation member, which is not preferable because the image display unit becomes large.

  The present invention has been made in view of the above problems in the prior art, and has an object to provide a head-mounted display having good small size, light weight and heat dissipation, and excellent wearability and quality retention. To do.

An invention according to claim 1 for solving the above-described problems includes an image generation unit that generates an image, an image display unit that is disposed in front of at least one eye of the wearer, and that displays the image; A mounting part,
The front-rear direction is the front-rear direction of the wearer's face when worn by the wearer, the left-right direction is the left-right direction of the wearer's face when worn by the wearer, and the up-down direction is As the vertical direction of the wearer's face when worn by the wearer,
The head wearing device is disposed in front of the wearer's face and extends in the left-right direction, and has a main frame to which the image display unit is attached.
The image display unit can be in a display form arranged on the main frame so as to display an image to the wearer by the image display unit,
The mainframe is
A display unit extending rightward on the right side of the image display unit in the display mode;
A display portion left extension portion extending to the left side on the left side of the image display unit in the display mode, and the image display behind the display portion right extension portion and the display portion left extension portion The rear of the unit is placed,
Further, the main frame has a bridge portion that connects a left end portion of the display portion right extension portion and a right end portion of the display portion left extension portion,
The bridge portion is provided so as to cross right and left through the rear side of the rear surface of the image display unit,
A heat conductive material is applied to the display part right extension part and the display part left extension part, and the heat conductive material is thermally connected so as to absorb heat generated in the image display unit in the display mode. This is a head-mounted display.

The invention according to claim 2 is configured in a one-eye display form in which the display unit is arranged in front of one eye of a wearer and the image display unit is arranged to be unevenly distributed on the side of the one of the right and left sides.
The image display unit in the display mode is supported via a first hinge around a front-rear direction axis, and includes an arm connected to the main frame via a second hinge around a vertical axis,
The first hinge is arranged at the center of the horizontal dimension of the image display unit,
The second hinge is disposed on one side of the image display unit,
In the display mode, the image display unit is held by the main frame so that the image display unit cannot be flipped up and down by the first hinge.
2. The head mounted display according to claim 1, wherein the image display unit can be reversed up and down and left and right by the first hinge by rotating about the second hinge and detaching the image display unit forward. It is.

According to a third aspect of the invention, the cable extending from the image display unit, through the vicinity of the first hinge, a further head-mounted display of claim 2, drawn through the second hinge vicinity.

Fourth aspect of the present invention, the second hinge to the front Kiga image display unit is disposed on the opposite side of was unevenly distributed the image display unit of the left and right sides,
The head-mounted display according to claim 3 , wherein the cable is pulled out to a side opposite to a side where the image display unit is unevenly distributed in the head-mounted tool.

According to a fifth aspect of the invention, the first rotation by the hinge, the image display vertically and horizontally inverting operation can and claim 2 is restricted so as to limit the range to be a unit, according to claim 3 or claim 4. The head mounted display according to 4 .

A sixth aspect of the present invention is the head mounted display according to any one of the first to fifth aspects, wherein a gap is provided between the rear surface of the image display unit and the bridge portion. .

Invention according to claim 7, said rear surface of said image display unit, a head-mounted display as claimed in claim 1, heat-insulating material is disposed between the bridge portion to any one of claims 5 It is.

The invention according to claim 8 is the invention according to any one of claims 1 to 7 , wherein a cover made of a heat insulating material covering a rear surface of the bridge portion facing the wearer's face is attached to the bridge portion. It is a head mounted display as described in above.

The invention according to claim 9 is characterized in that the head mounting tool includes a pair of HMD temples continuous at both ends of the main frame,
The pair of HMD temples are hung on the wearer's ears, and a fulcrum supported by the glasses worn by the wearer is provided and worn.
In contact with the glasses temple in Essential reading front of the wearer as claimed in any one of the claims 1 to 8 in which the pair of support portions are provided coupled to the pair of HMD temples constituting the fulcrum It is a head mounted display.
The temple of the head mounted display is called “HMD temple” and is distinguished from the temple of glasses.

A tenth aspect of the present invention is the head mounted display according to the ninth aspect, wherein the support portion is configured to be capable of 180 ° change installation around the longitudinal axis of the HMD temple.

  According to the present invention, the image display unit does not come into contact with the wearer's face, and the display unit right extending portion and the display portion left extending portion disposed on the left and right sides of the image display unit of the main frame are also mounted on the wearer. The heat generated in the image display unit can be released to the display unit right extending portion and the display portion left extending portion to dissipate heat, so that a large heat dissipation member may be provided in the image display unit. Therefore, it is possible to construct a head mounted display that has good small size and light weight and heat dissipation, and is excellent in wearability and quality retention.

It is a perspective view of the head mounted display concerning one embodiment of the present invention. It is a top view of the head mounted display concerning one embodiment of the present invention. It is a left view which shows the mounting state of the head mounted display which concerns on one Embodiment of this invention. FIG. 2 is a partial top view (a) including an image display unit of a head mounted display according to an embodiment of the present invention, and a top view (b) of a main frame. In FIG. (B), the cover is drawn separately. It is a perspective view of the main frame including the part which attaches the image display unit of the head mounted display which concerns on one Embodiment of this invention. It is a perspective view of the image display unit of the head mounted display which concerns on one Embodiment of this invention. FIG. 7 is a perspective view of a state where an arm is connected to an image display unit with respect to the state shown in FIG. 6. It is the perspective view seen from the state where the arm was connected with the image display unit like FIG. It is a fragmentary perspective view in which the image display unit of the head mounted display which concerns on one Embodiment of this invention is included, (a) shows a display form (right eye display form), (b) is detached | separated ahead. Shows the state. It is a partial perspective view including an image display unit of a head mounted display according to an embodiment of the present invention, (a) shows a state of rotating the image display unit, (b) is a state in which the image display unit is inverted upside down Indicates. It is a fragmentary perspective view in which the image display unit of the head mounted display concerning one embodiment of the present invention is included, and shows the state where the image display unit was returned to the display form from the state shown in Drawing 10 (b). However, it is a left eye display form. It is a perspective view of the support part of the head mounted display concerning one embodiment of the present invention. It is a disassembled overhead perspective view of the support part of the head mounted display concerning one embodiment of the present invention. It is a disassembled elevation perspective view of the support part of the head mounted display concerning one embodiment of the present invention. FIG. 4 is a top view of a support portion of a head mounted display according to an embodiment of the present invention, where (a) shows a configuration in which the rubber pad is tilted to the left, and (b) shows a configuration in which the rubber pad is tilted to the right. They are a perspective view (a) of the support part of the head mounted display which concerns on one Embodiment of this invention, and a perspective view (b) which shows the state which inserted the rear part of the HMD temple in this. It is the cut view which cut | disconnected the connection part of the support part of the head mounted display which concerns on one Embodiment of this invention, and a HMD temple vertically. It is the cutaway view which cut the support part of the head mount display concerning one embodiment of the present invention in the width direction central plane. It is a left view of the part containing the support part of the head mounted display which concerns on one Embodiment of this invention, (a) and the angle of the support part with respect to a HMD temple differ in (b). It is a top view which shows the support part of the head mounted display which concerns on one Embodiment of this invention, and the glasses by which the support part is supported, The width | variety of glasses differs in (a) and (b). BRIEF DESCRIPTION OF THE DRAWINGS It is a left view which shows the head mounted display which concerns on one Embodiment of this invention, and the spectacles which support this, (a) is the state in which the support part has floated from the HMD temple, (b) is a support part in HMD temple. The state of touching is shown. It is a left view which shows the head mounted display which concerns on one Embodiment of this invention, and the glasses which support this, (a) with respect to (b) shows the form by which the image display unit is falling. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a head mounted display according to an embodiment of the present invention, and FIG. (a) shows a state in which the image is inverted up and down and left and right from FIG. 16 (b), and (b) shows a mode in which the support portion is inverted up and down with respect to (a). It is a perspective view which shows a mode that the support part of the head mounted display which concerns on one Embodiment of this invention is turned upside down.

  An embodiment of the present invention will be described below with reference to the drawings. The following is one embodiment of the present invention and does not limit the present invention.

In the figure, three orthogonal axes XYZ are shown. The X-axis indicates the left-right direction, the Y-axis indicates the front-rear direction, and the Z-axis indicates the up-down direction.
As shown in FIGS. 1, 2, and 3, the head mounted display 1 </ b> A according to this embodiment includes an image display unit a and a head-mounted device to which the image display unit a is attached. This head-mounted device is configured to include a main frame 10 that is arranged in front of the face of the wearer H and extends in the left-right direction, and a pair of HMD temples 20 and 20 that are continuous at both ends of the main frame 10. The
The HMD temple 20 is divided into a front part 21 and a rear part 22. The HMD temple 20 is a straight type temple in which the rear portion 22 is formed straight. In order to carry out the left-right conversion described later, a straight temple is particularly used.

The image display unit a has a display member a10 disposed in front of the eye of the wearer H and an image generation unit (not shown) for generating an image displayed on the display member a10 fixed to the housing a20. The base end portion of the display member a10 and the image generation unit are accommodated in a20.
The display unit a11 is configured such that an image is observed on one side surface (rear side surface) of a portion of the display member a10 that protrudes from the housing a20.
The image display unit a guides the image light generated by the image generation unit including a light source, a liquid crystal display element, and the like in the housing a20 to the pupil of the wearer H via the display member a10. The image light generated by the image generation unit travels while being reflected in the display member a10, and is incident on the hologram element a13 disposed in an inclined manner in the display member a10. The hologram element a13 is provided so as to diffract only light of specific wavelengths (three wavelengths corresponding to RGB) and direct it toward the pupil of the wearer H. Thus, the display member a10 constitutes a see-through display member that can transmit light from the outside and enter the pupil of the wearer H. The wearer H can visually observe a real observation image of the outside world and a display image (virtual image) by image light that is superimposed on a part of the real observation image and guided through the display member a10. Even in this range, the actual observation image can be viewed through the display member a10.
The head mounted display 1A of the present embodiment is a single-eye display type, but a binocular display type may be implemented.

As shown in FIGS. 1, 2, and 3, the head mounted display 1 </ b> A has a pair of HMD temples 20, 20 placed on the ears of the wearer H and supported by glasses 100 worn by the wearer H. A fulcrum is provided and attached. The fulcrum is constituted by a pair of support portions 30 and 30.
That is, each of the pair of support portions 30 and 30 constitutes a fulcrum in contact with the temple 101 of the glasses 100 in front of the ear H1 of the wearer H. The support portion 30 of the present embodiment is in contact with the upper end of the temple 101, that is, is placed on the temple 101.
Such a pair of support portions 30, 30 are connected to the pair of HMD temples 20, 20. Specifically, the support portion 30 is connected to the rear portion 22 of the HMD temple 20.
The front part 21 of the HMD temple 20 is connected to the front part 21 of the support part 30 and the rear part 22 via a shaft hinge 21a so as to be rotatable up and down with respect to the rear part 22. The axial direction of the shaft hinge 21a is the X-axis direction.

The front end of each HMD temple 20 is connected to the main frame 10 by a shaft hinge 21b. The axial direction of the shaft hinge 21b is the Z direction, and a pair of HMD temples 20 and 20 can be opened and closed like a typical eyeglass frame.
The shaft hinge 21b is movably held in the guide hole 10a. The shaft hinge 21b is moved along the guide hole 10a so that the front ends of the pair of HMD temples 20 and 20 can be moved closer to or away from each other. That is, the pair of HMD temples 20 and 20 are arranged relatively close to each other so as to correspond to a relatively small head size, or paired so as to correspond to a relatively large head size. The HMD temples 20 and 20 can be arranged relatively far from each other in a substantially parallel state, and can be appropriately adjusted between these states. When the head size is relatively small, the entire pair of HMD temples 20 and 20 is slightly forward. When the head size is relatively large, the entire pair of HMD temples 20 and 20 is The guide hole 10a is formed obliquely so as to be disposed slightly rearward.
It is preferable to form serrations on the inner edge of the guide hole 10a so that the shaft hinge 21b can be moved stepwise at a predetermined pitch and held at each position. Further, in order to allow the position adjustment of the shaft hinge 21b, the forming member of the guide hole 10a is given appropriate elasticity. Accordingly, the shaft hinge 21b can be held so as not to move during use, and the position can be adjusted by applying a force in the extending direction of the guide hole 10a.

Next, a support structure for the image display unit a will be described.
As shown in FIG. 4A, a housing a20 of the image display unit a is attached to the main frame 10. It is a display form in this state.
The main frame 10 includes a display portion right extending portion 11R that extends to the right on the right side of the image display unit a in the display mode, and a display portion that extends to the left on the left side of the image display unit a in the display mode. 11L.
Specifically, the left end of the display portion right extending portion 11R is disposed at a position adjacent to the right side surface of the housing a20 and extends rightward therefrom. The right end of the display portion left extending portion 11L is disposed at a position adjacent to the left side surface of the housing a20 and extends leftward therefrom. Since the display unit a11 is arranged in front of the right eye of the wearer H and the image display unit a is unevenly arranged on the right side in the present embodiment, the display unit left extending unit 11L is long. On the other hand, the display portion right extending portion 11R is formed short. The display portion left extending portion 11L includes a central portion of the main frame 10 facing the wearer's eyebrows.

The rear surface of the image display unit a is arranged behind the display portion right extending portion 11R and the display portion left extending portion 11L. Specifically, the rear surface a21 of the housing a20 is disposed behind the rear surface 11R1 of the display unit right extension 11R and the rear surface 11L1 of the display unit left extension 11L.
As shown in FIG. 4B, the main frame 10 includes a bridge portion 12 that connects the left end portion 11R2 of the display portion right extension portion 11R and the right end portion 11L2 of the display portion left extension portion 11L.
The bridge portion 12 is provided so as to cross the left and right through the rear side of the rear surface a21 of the image display unit a.
The bridge portion 12 includes a bridge main portion 12M, a right leg portion 12R, and a left leg portion 12L. The bridge main part 12M is a part across the range in which the image display unit a in the display mode is arranged with respect to the X coordinate, and extends long in the left-right direction.
Since the bridge main part 12M passes through the rear side of the rear surface a21 to the left and right, a drop in the front-rear direction occurs between the display part right extension part 11R and the display part left extension part 11L. The right leg portion 12R and the left leg portion 12L are portions that fill the gap. That is, the right leg portion 12R is continuous with the right end portion of the bridge main portion 12M, extends forward, and is connected to the left end portion 11R2 of the display portion right extension portion 11R. The left leg portion 12L is continuous with the left end portion of the bridge main portion 12M, extends forward, and is connected to the right end portion 11L2 of the display portion left extension portion 11L.

A heat conductive material is applied to the display portion right extending portion 11R and the display portion left extending portion 11L, and the heat conductive material is thermally connected so as to absorb heat generated in the image display unit a in the display mode. . The heat generated in the image display unit a is released to the display portion right extending portion 11R and the display portion left extending portion 11L to radiate heat. For this thermal connection, the right leg portion 12R, the left leg portion 12L, the right latch portion 16R, the left latch portion 16L, and the contact portion with at least the left and right side main frame 10 of the housing a20 are also thermally conductive. Material is applied. Further, the heat generating part due to the power consumption in the housing a20 is thermally connected to the contact portion of the housing a20 with the main frame 10.
As shown in FIG. 4A, a gap 12A is provided between the rear surface a21 of the image display unit a and the bridge main portion 12M. The air gap 12A functions as a heat insulating layer for preventing heat conduction to the wearer side. Therefore, the space 12A may be filled with a heat insulating material.
Further, a cover 13 made of a heat insulating material that covers the rear surface 12 </ b> M <b> 1 facing the face of the wearer of the bridge portion 12 is attached to the bridge portion 12. This is to prevent the bridge main part 12M from directly contacting the wearer's face and to suppress heat transmitted to the wearer.
As the above heat conductive material, it is preferable to apply a material having a heat conductivity of 5 to 300 (W / m · K). Examples of materials include aluminum (thermal conductivity 250 (W / m · K)), magnesium (thermal conductivity 156 (W / m · K)), thermal conductive resin (thermal conductivity 7 (W / m · K)). ).
As the above heat insulating material, it is preferable to apply a material having a thermal conductivity of 0 to 0.3 (W / m · K). Examples of materials include silicone rubber (thermal conductivity 0.2 (W / m · K)) and polycarbonate (thermal conductivity 0.19 (W / m · K)). The thermal conductivity of air is 0.024 (W / m · K).

As shown in FIG. 5 to FIG. 8, the image display unit a in the display mode is supported via the first hinge around the front-rear direction axis Y and attached to the main frame 10 via the second hinge 14 b around the up-down direction axis. A connected arm 14 is provided.
The display unit right front protrusion 15R and the display unit left front protrusion 15L are portions that protrude forward from the display unit right extension 11R and the display unit left extension 11L on the left and right of the housing storage unit 10c. And provided continuously to the left leg 12L.
The arm 14 has substantially the same length as the bridge main portion 12M and is hung on the front side opposite to the bridge main portion 12M. The arm 14 and the display portion left front protrusion 15L are formed by the bridge portion 12, the display portion right front protrusion 15R. As shown in FIGS. 1 and 2, the housing a20 is surrounded to define a housing storage portion 10c shown in FIG. In the display mode, the casing a20 is stored and fixedly held in the casing storage unit 10c.
The second hinge 14b is provided so as to connect the arm 14 and the display unit front left projection 15L. The right end of the arm 14 is captured by the display unit front right projection 15R in the state of FIG. Note that a lock mechanism that captures and holds the arm 14 at the right front protrusion 15R of the display unit is configured, and a lock release operation is also possible.
A shaft portion 14 a of the first hinge is formed so as to protrude rearward inside the center portion of the span of the arm 14. On the other hand, as shown in FIG. 6, a hole a22 of the first hinge is formed on the front surface of the housing a20. As shown in FIGS. 7 and 8, the shaft portion 14a is fitted into the hole a22 to form a first hinge, and the image display unit a in the display mode is connected to the image display unit a via the first hinge about the longitudinal axis Y. To support.

As described above, the first hinge (14a, a22) is arranged at the center of the horizontal dimension of the image display unit a, and the second hinge 14b is arranged on one side of the image display unit a.
As shown in FIGS. 1, 2 and the like, in the display mode, the image display unit a is held by the main frame 10 so that the image display unit a cannot be flipped vertically and horizontally by the first hinge. In particular, the latch portions 16L and 16R are provided on the left and right inner portions of the housing storage portion 10c in order to hold them without rattling. The latch part 16L and the latch part 16R are left-right symmetric and have long grooves in the front-rear direction. The fixing blades a23 (see FIGS. 9B and 10) formed on the left and right sides of the housing a20 are caught in the grooves, and the image display unit a is fixed to the main frame 10.

As shown in FIG. 9 (a) → FIG. 9 (b) → FIG. 10 (a) → FIG. 10 (b) → FIG. 11 or vice versa, the image is displayed by rotating around the second hinge 14b. By detaching the unit a forward, the image display unit a can be reversed vertically and horizontally by the first hinge (14a, a22).
As shown in FIG. 10, the image display unit a is rotated about 90 degrees around the second hinge 14b and detached forward, and then rotated around the first hinges (14a, a22) arranged substantially in the left-right direction. Move it upside down. At that time, as shown in FIG. 10A, the image display unit a is rotated using the space of the housing storage portion 10c.

As shown in FIG. 8 and the like, the head mounted display 1A has the cable 40 extending from the casing a20 of the image display unit a passed through the vicinity of the first hinges (14a, a22) and further pulled out through the vicinity of the second hinge 14b. It is supposed to be configured. As a result, the operation of FIG. 9 (a) → FIG. 9 (b) → FIG. 10 (a) → FIG. 10 (b) → FIG. 11 and the reverse process can be performed smoothly. It can be routed with little or no load on the gable 40.
Furthermore, in order to suppress the load on the gable 40, the image display unit a is prevented from rotating more than 180 degrees. That is, the rotation by the first hinge (14a, a22) is restricted so as to be limited to a range in which the up / down / left / right reversal operation of the image display unit a is possible. The specific regulatory structure is as follows. As shown in FIG. 5, a cable holder 14c is formed between the shaft portion 14a of the first hinge on the inner surface of the arm 14 and the second hinge 14b. A cable 40 routed from the vicinity of the first hinge (14a, a22) to the vicinity of the second hinge 14b is fitted and held in the cable holder 14c. This is a restriction structure in which the lower surface of the front portion of the housing a20 comes into contact with the cable holder 14c and stops.
As a result, the load applied to the gable 40 is suppressed, the lead wire deterioration and disconnection of the gable 40 are prevented, and good quality retention that can be used for a long time is achieved.

As shown in FIGS. 1 and 2, the cable 40 is configured to be drawn out to the side (left side) opposite to the side (right side in FIGS. 1 and 2) where the image display unit a of the head-mounted device is unevenly distributed. . Thereby, since the cable 40 passes the center part of the main frame 10 which opposes a wearer's eyebrows, the weight balance of the right and left of this head mounted display is favorable.
The display portion left extending portion 11L has a hollow structure in which a hollow portion penetrating in the longitudinal direction is formed, and the cable 40 is passed through the hollow portion.
Since the cable 40 does not extend up and down, front and rear, etc. of the main frame 10, when the head mounted display is worn or when the helmet or hat is worn together, the head mounted display is worn or the helmet or hat is worn. There is no hindrance. Further, since the cable 40 passes through the main frame 10, it is protected from external pressure and the like, and it is not exposed and does not impair the beauty.

Next, the structure of a single unit of the support part 30 and the connection structure to the HMD temple 20 will be described (refer to FIGS. 12 to 18 as appropriate).
A perspective view of the support portion 30 is shown in FIG. 12, and an exploded perspective view is shown in FIGS. The support portion 30 is composed of three components, a connection frame 31, a left / right rotation frame 32, and a rubber pad 33.
Since the rubber pad 33 is a part in contact with the temple 101 of the glasses 100 (see FIG. 3), the rubber pad 33 is made of a non-slip rubber material.
The left and right rotating frame 32 is fitted inside the rubber pad 33, and the rubber pad 33 is integrally fixed to the left and right rotating frame 32. The left and right rotating frame 32 and the rubber pad 33 are formed with a retaining shape for fixing them to each other, and the left and right rotating frame 32 is fitted inside the rubber pad 33 with the elastic deformation of the rubber pad 33.
A left and right rotation shaft portion 31 a is protruded from the rear end portion of the connection frame 31, and a bearing female portion 32 a that fits into the left and right rotation frame 32 is drilled. The left / right rotation shaft portion 31a is fitted into the bearing female portion 32a, and the left / right rotation frame 32 is held by the connecting frame 31 so as to be rotatable left and right. The left-right rotation shaft portion 31a and the bearing female portion 32a are formed with a retaining shape for fixing them to each other, and the left-right rotation shaft portion 31a is split so as to be easily elastically deformed. With the elastic deformation of the moving shaft portion 31a, the left and right rotating shaft portion 31a is fitted into the bearing female portion 32a.
After the fitting, the inner surface of the bearing female portion 32a is pressed by the elastic recovery force of the left and right rotation shaft portion 31a. Thereby, the left-right rotation frame 32 and the connection frame 31 are fitted and connected by an elastic friction fit.

A substantially sector-shaped rotation restricting hole 32b is formed in front of the bearing female portion 32a of the left and right rotating frame 32, and a rotation restricting protrusion is formed in front of the left and right rotating shaft portion 31a of the connecting frame 31. A portion 31c is formed. The front end portion of the rotation restricting convex portion 31c constitutes a front holding projection 31c1 protruding forward.
When the left and right rotation shaft portion 31a is fitted into the bearing female portion 32a, first, the front holding projection 31c1 is inserted into the rotation restriction hole 32b and disposed on the rubber pad 33 mounting side, and the left and right rotation shaft portion 31a is disposed. Push into the bearing female portion 32a.
As shown in FIG. 15, the rotation restricting convex portion 31c abuts on the inner edge of the rotation restricting hole 32b, thereby restricting the left and right turning of the left and right turning frame 32 (the rubber pad 33 fixed integrally therewith). . For example, it is set to ± 5 °.

A connection housing 31b is formed on the opposite side of the left and right rotation shaft portion 31a at the rear end portion of the connection frame 31. The connection housing 31b has a structure in which front and rear surfaces are open and members are provided on the left and right side surfaces and the upper surface. 31b2 is formed. By forming the slit 31b2, the deformation of the pivot protrusions 31b1 and 31b1 on both the left and right side portions can be easily changed due to the elastic deformation of the connecting housing 31b. The pivot protrusions 31b1 and 31b1 are formed coaxially and are arranged to face each other.
As shown in FIGS. 16B and 17, the rear portion 22 of the HMD temple 20 is inserted from the rear of the connection housing 31 b. The rear portion 22 includes, from the front, a hinge connecting portion 22a that is connected to the shaft hinge 21a, a support portion connecting portion 22b that is connected to the connecting housing 31b, and a cylindrical portion 22c.
The rear portion 22 is inserted from the rear of the connection housing 31b, the hinge connection portion 22a is protruded forward from the connection housing 31b, and the support portion connection portion 22b is fitted into the connection housing 31b. Guide grooves 22b1 and 22b1 extending in the front-rear direction are formed in the left and right side surfaces of the support portion connecting portion 22b. Pivot protrusions 31b1 and 31b1 are fitted in the guide grooves 22b1 and 22b1, and the support portion connecting portion 22b is fixed by pushing the connecting housing 31b left and right. Thereby, the support part 30 and the HMD temple 20 are fitted and connected by an elastic friction fit.

  As shown in FIG. 18, the inner upper and lower surfaces of the connecting housing 31b are formed so as to be inclined so that the distance between the upper and lower surfaces increases from the pivot protrusion 31b1 toward the front and rear opening ends. As shown in FIG. 19, when the support portion connecting portion 22b comes into contact with the inclined surface 31b3, the vertical rotation of the support portion 30 around the pivot protrusion 31b1 is restricted to a desired angle range.

As described above, the support portion 30 is formed to be substantially parallel to the longitudinal direction of the HMD temple 20 and is connected to the HMD temple 20 so that it can be rotated vertically and horizontally at the rear end portion close to the ear side. Yes. The rubber pad 33, which is a part in contact with the support portion 30, specifically, the HMD temple 20, is formed to be substantially parallel to the longitudinal direction of the HMD temple 20, thereby ensuring a large contact area between the rubber pad 33 and the temple 101. The anti-slip effect can be maximized.
Further, the pivot protrusions 31b1 and 31b1 can be moved by frictional sliding along the guide grooves 22b1 and 22b1. Therefore, the support part 30 is connected along the HMD temple 20 so as to be able to slide back and forth.
Further, the support portion 30 and the HMD temple 20 are fitted and connected by an elastic friction fit so that the operation of the arrangement of the support portion 30 with respect to the HMD temple 20 is allowed and is stably held in an arbitrary arrangement. The operation of the arrangement that receives the action of the friction fitting is the vertical rotation, the horizontal rotation, and the back-and-forth slide movement of the support portion 30 with respect to the HMD temple 20.

The movable function of the support part 30 described above has the following effects.
As shown in FIG. 20 (a), when the glasses worn by the wearer H are relatively small glasses 100A, the rubber pad 33 is rotated inward so as to be placed on the temple of the glasses 100A. The position can be adjusted.
As shown in FIG. 20 (b), when the glasses worn by the wearer H are relatively large glasses 100B, the rubber pads 33 are arranged so as to be rotated outward so that they are placed on the temples of the glasses 100B. The position can be adjusted.
The position adjustment to the inside and the outside of the rubber pad 33 can also be achieved by moving the entire HMD temple 20 along the guide hole 10a described above. On the other hand, the function by the left and right rotation of the rubber pad 33 is different in that it moves independently with respect to the HMD temple 20. Therefore, even after the position when the HMD temple 20 is mounted is determined, the rubber pad 33 can be moved independently from side to side.

As shown in FIG. 21, the case where the head mounted display 1A is mounted with the upper end of the front portion being higher than the temple and supported by glasses 100C having a relatively large drop will be described.
As shown in FIG. 21A, when the HMD temple 20 is straight from the front portion 21 to the rear portion 22, the rubber pad 33 may float from the temple of the glasses 100C. In this case, as shown in FIG. 21B, by bending the HMD temple 20 with the shaft hinge 21a, the support portion 30 can be lowered and the rubber pad 33 can be brought into contact with the temple of the glasses 100C. At that time, the support part 30 is appropriately rotated up and down to make the lower surface of the rubber pad 33 parallel to the upper surface of the temple of the glasses 100C, and a large contact area between the rubber pad 33 and the temple can be secured.

As shown in FIG. 22, when the head mounted display 1A is mounted while the upper end height of the temple and the front portion are the same, or the upper end of the front portion is higher than the temple and is supported by glasses 100D having a relatively small drop. Mention.
Also in this case, the support part 30 is appropriately rotated up and down so that the lower surface of the rubber pad 33 is parallel to the upper surface of the temple of the glasses 100D, and a large contact area between the rubber pad 33 and the temple can be secured.
The front portion 21 is rotated around the shaft hinge 21a, such as from the state of FIG. 22 (a) to the state of FIG. 22 (b), or from the state of FIG. 22 (b) to the state of FIG. 22 (a). Thus, the image display unit a moves up and down, and the height position of the display unit a11 can be adjusted.
The connection at the shaft hinge 21a is also configured to frictionally slide with an appropriate resistance force.

It is possible to adjust the position of the rubber pad 33 in the front-rear direction by sliding the support part 30 back and forth. Thereby, the front-back direction position of the rubber pad 33 can be adjusted according to the shape of the glasses 100 (100C, 100D). For example, the rubber pad 33 is arranged on the flat surface or large area of the glasses 100 (100C, 100D), or the front end of the rubber pad 33 is hung from the temple of the glasses 100 (100C, 100D) to the front part. It is possible to prevent a forward shift by abutting.
Further, the position of the rubber pad 33 in the front-rear direction can be appropriately adjusted according to the shape of the face of the wearer H. For example, when the rubber pad 33 strongly hits the side of the face, it may be avoided by adjusting the position of the rubber pad 33 in the front-rear direction.
The forward / backward slide movable amount of the support portion 30 can be increased by forming the support portion connecting portion 22b and the guide grooves 22b1 and 22b1 in a long shape.

As shown in FIGS. 9, 10, and 11 and as described above, the image display unit a is configured to be vertically changeable without being removed from the main frame 10. The arm 14 to which the image display unit a is attached and the left and right latch portions 16L and 16R (see FIG. 5) can be turned up and down around the X axis. That is, a vertical rotation support mechanism (turning angle adjustment mechanism) of the image display unit a is configured. Since the rotation axis is away from the display unit a11, not only the turning angle of the display unit a11 but also the height position of the display unit a11 is changed with the vertical rotation of the image display unit a.
The tilt angle and height position of the display unit a11 can be further adjusted from the respective states of FIGS. 21 and 22 by using the vertical rotation support mechanism (turn angle adjustment mechanism) of the image display unit a. The display part a11 can be adjusted to an appropriate position by cooperating the vertical rotation of a and the movement of the HMD temple 20.

Next, the left / right conversion of the image display unit a will be described.
The head mounted display 1A can be switched between a right-eye display mode and a left-eye display mode.
First, from the right-eye display form shown in FIG. 23 (a), the image display unit a is changed according to the process of FIG. 9 (a) → FIG. 9 (b) → FIG. 10 (a) → FIG. 10 (b) → FIG. By turning it upside down without removing it, the state shown in FIG.
Next, when the head mounted display 1A is rotated 180 ° around the Y axis as shown by an arrow R in FIG. 23 (b), the state shown in FIG. 24 (a) is obtained. a is arranged in front of the left eye. However, since the rubber pad 33 faces upward as shown in FIG. 24 (a), the support portion 30 is rotated by 180 ° around the Y axis to the state shown in FIG. 24 (b), and the support portion 30 can be used. And
As shown in FIG. 25, the rotation operation of the support portion 30 about the Y-axis is performed by first moving the support portion 30 rearward with respect to the rear portion 22 of the HMD temple 20 to move the connection housing 31b to the support portion connection portion 22b. And is disposed on the cylindrical portion 22c. The cylindrical portion 22c is configured to have a small diameter so that the connecting housing 31b rotates. Therefore, the support part 30 can be rotated 180 ° around the Y axis. In other words, the support portion 30 is configured to be capable of 180 ° change installation around the longitudinal axis of the HMD temple 20 while being held by the HMD temple 20.
When the support portion 30 can be changed by 180 °, the support portion 30 is returned to the front, and the connection housing 31b is fitted to the support portion connection portion 22b.
Since the 180 ° switching mechanism including the connection housing 31b and the cylindrical portion 22c as described above is configured, it is possible to prevent the support portion 30 from being lost without removing the support portion 30 and to be unexpected. It is possible to prevent the support 30 from falling off.

According to the above embodiment, the image display unit a does not contact the face of the wearer, and the display unit right extending unit 11R and the display unit left extending arranged on the left and right sides of the image display unit of the main frame 10 are provided. Since the projecting portion 11L does not come into contact with the face of the wearer, the heat generated by the image display unit a can be released to the display portion right extending portion 11R and the display portion left extending portion 11L to dissipate heat. Without providing a large heat radiating member in a, it is possible to constitute a head mounted display having good small size and light weight and heat radiating property and excellent in wearability and quality retention.
By providing the bridge portion 12 in the middle of the main frame 10, the rear surface a21 of the housing a20 can be disposed behind the display portion right extending portion 11R and the display portion left extending portion 11L. Even if the bridge main part 12M (cover 13) of the bridge part 12 is attached in contact with the face of the wearer, the display part right extension part 11R and the display part left extension part 11L are more than the bridge main part 12M. Furthermore, it arrange | positions ahead rather than the rear surface a21 of the housing | casing a20, and a clearance gap is ensured between a wearer's face.
Therefore, since the image display unit a, the display unit right extending unit 11R, and the display unit left extending unit 11L do not contact the face of the wearer, the heat generated by the image display unit a is generated by the display unit right extending unit 11R and the display unit left. Even if it escapes to the extension portion 11L and radiates heat, the wearer will not be painful or burned by heat, and the comfortable and safe wearability will not be impaired. In addition, the quality retention is excellent without shortening the life of the electrical component.
By providing the arm 14, the display unit front right projection 15R, and the display unit front left projection 15L, the main frame 10 is connected around the casing a20 (the casing storage unit 10c), and rigidity in this portion is ensured. .
If the main frame image display unit is not provided with a bridge portion and the main frame has a straight shape, the size of the image display unit must be further increased. According to this, it is possible to construct a small size in this respect. In addition, if the main frame does not have a rearwardly protruding bridge portion, the main frame may come into contact with the wearer's face for a long time.

As described above, since the image display unit a is pivotally held by the arm 14 having the second hinge 14b that opens in the lateral direction, the image display unit a is pulled out and rotated by opening the arm 14. The single-eye display mode can be switched between left and right.
Since the cable 40 is arranged along the arm 14, it is possible to prevent an accident such as the user hooking the cable 40 on a frame or the like when the one-eye display mode is switched between right and left.
Since the image display unit a is not rotated by 180 degrees or more with respect to the arm 14, an accident in which the cable 40 is disconnected by rotating the image display unit a in one direction too much can be prevented.
Since the second hinge 14b of the arm 14 is arranged near the center of the main frame 10 and the cable 40 is pulled out to the opposite side across the second hinge 14b, the right and left weight balance of the head mounted display 1A is good and mounted. Improves.
Since the HMD temples 20 and 20 are provided with the support portions 30 and 30 for the glasses, they can be mounted on the glasses, and the load of the head mounted display 1A is received in the vertical direction by the glasses, so a pair of HMD temples The head-holding force by 20 and 20 is minimal, and the wearability is improved.

Moreover, according to the above embodiment, since the pair of support portions 30 supported in contact with the glasses 100 is disposed between the hinge portion (21b) at the front end of the HMD temple 20 and the ear H1, the weight of the head mounted display 1A is The glasses 100 are not concentrated on the front part of the glasses 100, are distributed in the ears and nose, have a good left / right balance, and exhibit an excellent wearability that is stable and difficult to feel weight.
In addition, since it is not affected by the shape of the front frame of the glasses 100, it can be used without limitation on the type of glasses.
Since the support part 30 is movably held vertically and horizontally, the support part 30 can be flexibly attached to the shape of the temple 101 of the glasses 100, and the anti-slip effect can be effectively exhibited.
According to the present embodiment, since the support portion 30 is held rotatably around the longitudinal axis of the HMD temple 20, the image display unit a is inverted vertically and horizontally with respect to the main frame 10, and the main frame 10 is inverted vertically and horizontally. Thus, even when the arrangement of the display part a11 is switched to the left and right, the support part 30 can be directed to the temple 101 side of the glasses 100, and a mounting form supported using the support part 30 can be taken.

1A head mounted display 10 main frame 10a guide hole 10c housing housing 11L display left extension 11L1 rear surface 11L2 right end 11R display right extension 11R1 rear 11R2 left end 12 bridge 12A gap 12L left leg 12M bridge Main portion 12M1 Rear surface 12R Right leg portion 13 Cover 14 Arm 14a First hinge shaft 14b Second hinge 14c Cable holder (rotation restricting portion)
15L Display part left front protrusion 15R Display part right front protrusion 16L, 16R Latch part 20 HMD temple 30 Support part 40 Cable a Image display unit a10 Display member a11 Display part a13 Hologram element a20 Housing a21 Rear surface a22 Hole part of the first hinge a23 Fixing blade H Wearer H1 Ear

Claims (10)

An image generation unit that generates an image, an image display unit that is arranged in front of at least one eye of the wearer and displays the image, and a head-mounted device,
The front-rear direction is the front-rear direction of the wearer's face when worn by the wearer, the left-right direction is the left-right direction of the wearer's face when worn by the wearer, and the up-down direction is As the vertical direction of the wearer's face when worn by the wearer,
The head wearing device is disposed in front of the wearer's face and extends in the left-right direction, and has a main frame to which the image display unit is attached.
The image display unit can be in a display form arranged on the main frame so as to display an image to the wearer by the image display unit,
The mainframe is
A display unit extending rightward on the right side of the image display unit in the display mode;
A display portion left extension portion extending to the left side on the left side of the image display unit in the display mode, and the image display behind the display portion right extension portion and the display portion left extension portion The rear of the unit is placed,
Further, the main frame has a bridge portion that connects a left end portion of the display portion right extension portion and a right end portion of the display portion left extension portion,
The bridge portion is provided so as to cross right and left through the rear side of the rear surface of the image display unit,
A heat conductive material is applied to the display part right extension part and the display part left extension part, and the heat conductive material is thermally connected so as to absorb heat generated in the image display unit in the display mode. A head-mounted display characterized by that. The display unit is arranged in front of one eye of the wearer, and the image display unit is configured in a one-eye display form in which the image display unit is arranged to be unevenly distributed on the side of the one of the left and right sides,
The image display unit in the display mode is supported via a first hinge around a front-rear direction axis, and includes an arm connected to the main frame via a second hinge around a vertical axis,
The first hinge is arranged at the center of the horizontal dimension of the image display unit,
The second hinge is disposed on one side of the image display unit,
In the display mode, the image display unit is held by the main frame so that the image display unit cannot be flipped up and down by the first hinge.
2. The head mounted display according to claim 1, wherein the image display unit can be reversed up and down and left and right by the first hinge by rotating about the second hinge and detaching the image display unit forward. . The head mounted display according to claim 2, wherein a cable extending from the image display unit is pulled out through the vicinity of the first hinge and further through the vicinity of the second hinge. The second hinge is disposed on the opposite side of the left and right sides of the image display unit with respect to the image display unit,
The head-mounted display according to claim 3, wherein the cable is drawn out to a side opposite to a side where the image display unit is unevenly distributed in the head-mounted tool. 5. The head mounted display according to claim 2, wherein the rotation by the first hinge is restricted so as to be limited to a range in which the image display unit can be reversed vertically and horizontally. 5. The head mounted display according to any one of claims 1 to 5, wherein a gap is provided between the rear surface of the image display unit and the bridge portion. The head mounted display according to any one of claims 1 to 5, wherein a heat insulating material is disposed between the rear surface of the image display unit and the bridge portion. The head mounted display according to any one of claims 1 to 7, wherein a cover made of a heat insulating material that covers a rear surface of the bridge portion facing the wearer's face is attached to the bridge portion. The head wearing device includes a pair of HMD temples continuous at both ends of the main frame, and the pair of HMD temples are hung on the wearer's ears and supported by glasses worn by the wearer. Is installed and installed,
The pair of support portions constituting the fulcrum in contact with the temples of the glasses in front of the ears of the wearer are provided to be connected to the pair of HMD temples. Head mounted display. The head mounted display according to claim 9, wherein the support portion is configured to be capable of being installed 180 degrees around the longitudinal axis of the HMD temple.

Images