JP2012063524A - Vehicular head-up display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular head-up display device capable of suppressing the generation of an unnecessary image, and improving display quality.SOLUTION: A vehicular head-up display device has a light source 30, and a case body 40 for storing the light source 30. The vehicular head-up display device emits emission light L from the light source 30 to the outside of the case body 40 through a translucent cover 45 provided on the case body 40, reflects that by a windshield 13 of a vehicle, and allows a driver 14 to visually recognize a virtual image V obtained by the reflection. On the case body 40, a shielding portion 46 is formed, which prevents a part M of the emission light L radiated toward an area apart from an optical shaft 31 of the light source 30 from reaching the translucent cover 45 (the windshield 13) through an inner wall portion 43a of the case body 40.

Description

  The present invention relates to a vehicle head-up display device that reflects emitted light emitted from a light emitter on a windshield of a vehicle, which is a reflection member, and allows a vehicle user to visually recognize a virtual image obtained by the reflection. .

  2. Description of the Related Art Conventionally, as this type of vehicle head-up display device, for example, one described in Patent Document 1 below is known. The vehicle head-up display device described in Patent Document 1 is mounted inside an instrument panel (hereinafter referred to as an instrument panel) of a vehicle, and is mounted on a wiring board in a row along the vehicle width direction. Each point light source, a wiring board and a substantially box-shaped case body that accommodates each point light source, and the case body includes a bottom wall portion on which the wiring board on which each point light source is mounted is mounted. The translucent light is composed of a front wall portion facing the bottom wall portion and a side wall portion connecting the front wall portion and the bottom wall portion, and light emitted from the point light source is provided on the front wall portion of the case body. The display image (virtual image) such as dot information obtained by this reflection is emitted to the outside of the case body through the protective cover (translucent portion) and reflected by the windshield (reflecting member) of the vehicle. (Vehicle user) is visually recognized.

  In this case, the vehicle head-up display device detects the presence or absence of a human body or a laser radar that outputs a control unit including a microcomputer and position data of an obstacle (such as a pedestrian) to the control unit. And an obstacle detection unit including a thermal infrared sensor that outputs the result as human body detection data to the control unit. The control unit drives the light source to turn on one or a plurality of adjacent point light sources corresponding to the direction of the obstacle based on the position data and the human body detection data output from the obstacle detection unit. A command signal is output to the circuit.

  The light source driving circuit receives the command signal and drives one or more point light sources corresponding to the direction in which the obstacle exists, whereby one or more point light sources corresponding to the direction in which the obstacle exists. Light. As the point light source is turned on, the emitted light emitted from the point light source passes through the translucent cover and is then reflected by the windshield (reflecting member) of the vehicle toward the driver side. The virtual image can be visually recognized. The display of the virtual image here has a function as a warning display for calling attention to the driver that the speed is excessive.

JP 2009-217682 A

  By the way, the emitted light emitted from the point light source has a large radiation angle (light irradiation region angle) and travels in various directions. Therefore, in the case of the vehicle head-up display device described in Patent Document 1 described above, the emitted light from the point light source disposed on the bottom wall portion side of the case body is mainly in the optical axis direction of the light source (that is, translucent light). Is emitted toward the area away from the optical axis (that is, toward the side wall of the case body), and is emitted toward the area away from the optical axis. Some of the emitted light becomes stray light and is reflected on the inner wall surface of the side wall portion of the case body, and sometimes reaches the translucent cover provided on the front wall portion of the case body.

A part of the emitted light (the stray light) that reaches the translucent cover through the inner wall surface of the side wall portion of the case body in this way is emitted from the translucent cover and projected on the windshield. The driver visually recognizes an unnecessary image (so-called ghost image) that should not be displayed originally due to the generation of the stray light in addition to the display image that should be displayed. That is, the image generated by the stray light is an unnecessary image that should not be displayed for the driver, and there is a problem that the display quality of the display image deteriorates due to the generation of such an unnecessary image. There was room for further improvement in this regard.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a vehicle head-up display device that can suppress generation of an unnecessary image and improve display quality in order to cope with the above-described problems.

  The present invention includes a light source and a case body that accommodates the light source, and emits light emitted from the light source to the outside of the case body via a translucent portion provided in the case body. In the vehicle head-up display device for reflecting the virtual image obtained by this reflection to the user of the vehicle, the case body radiates toward the region away from the optical axis of the light source. A light shielding portion is formed to prevent a part of the emitted light from reaching the reflecting member via the inner wall portion of the case body.

  In the invention, it is preferable that the light-shielding portion includes a wall portion that protrudes from the inside of the inner wall portion.

  In addition, the present invention includes a light source and a case body that houses the light source, and emits light emitted from the light source to the outside of the case body through a light transmitting portion provided in the case body. In the vehicle head-up display device for reflecting the virtual image obtained by the reflection by a predetermined reflecting member and allowing the vehicle user to visually recognize the emitted light, the emitted light radiated toward a region away from the optical axis of the light source. Is formed separately from the case body to prevent a part of the light from passing through the inner wall of the case body and reaching the reflecting member, and the light shielding section and the case body are provided with predetermined fixing means. It is characterized by being fixed using.

  In the invention, it is preferable that the light shielding portion is a wall portion disposed inside the inner wall portion so as to be in contact with the inner wall portion.

  In addition, the present invention includes a light source and a case body that houses the light source, and emits light emitted from the light source to the outside of the case body through a light transmitting portion provided in the case body. In a vehicle head-up display device in which a virtual image obtained by reflection by a predetermined reflecting member is visually recognized by a vehicle user, the translucent portion is directed toward a region away from the optical axis of the light source. A light-shielding portion is formed to prevent a part of the emitted light radiated from reaching the reflecting member through an inner wall portion of the case body.

  In the invention, it is preferable that the light shielding portion includes a light shielding layer provided at a periphery of the light transmitting portion.

  ADVANTAGE OF THE INVENTION According to this invention, the initial purpose can be achieved, the generation | occurrence | production of an unnecessary image can be suppressed, and the head-up display apparatus for vehicles which can improve display quality can be provided.

1 is a schematic view of a vehicle head-up display device according to a first embodiment of the present invention. Sectional drawing of the light-emitting device by the embodiment. The block diagram which shows the electrical constitution of the head-up display apparatus for vehicles by the embodiment. The front view of the reflection member in the state where the virtual image by the embodiment was displayed. Sectional drawing of the light-emitting device by 2nd Embodiment of this invention. Sectional drawing of the light-emitting device by 3rd Embodiment of this invention.

(First Embodiment) An embodiment in which the present invention is applied to a head-up display device for a vehicle will be described below with reference to FIGS.

  As shown in FIG. 1, the vehicle head-up display device operates the vehicle 10 with the windshield 13 of the vehicle 10 that is a reflecting member for the emitted light L emitted from the light emitting device 12 disposed inside the instrument panel 11 of the vehicle 10. The virtual image V is displayed by reflecting in the direction of the user (user) 14. In other words, the vehicle head-up display device emits emitted light L emitted from a light source (described later) included in the light emitting device 12 to the windshield 13 (the reflecting member), and operates the virtual image V obtained by the emission. It is made to be visually recognized by the person 14. Thus, the driver 14 can observe the virtual image V displayed in front of the driver's seat in a superimposed manner with the scenery.

  As shown in detail in FIG. 2, the light emitting device 12 includes a circuit board 20, a light source 30 mounted (arranged) on the circuit board 20, and a case body 40 constituting an outer case of the light emitting apparatus 12. It is configured.

  The circuit board 20 is made of, for example, a hard circuit board provided with a predetermined wiring pattern, and a light source 30 is mounted on the wiring pattern. The circuit board 20 is placed on a bottom wall portion of the case body 40 which will be described later.

  The light source 30 is composed of a chip-type light emitting diode that emits red light, for example, and is a light emitting body that supplies illumination light (emitted light L) toward a cover (described later) provided on the case body 40. In this case, the light source 30 has a light irradiation region angle having a directivity of approximately 60 degrees to the left and right with the optical axis 31 as the center. This means that the light source 30 has a light irradiation region angle of approximately 120 degrees.

  The case body 40 is made of, for example, a black light-shielding synthetic resin material, is formed in a substantially box shape, and includes a bottom wall portion 41 as a placement portion on which the circuit board 20 is placed, and a front side of the bottom wall portion 41. The front wall 42 is located on the front wall, and the bottom wall 41 and the front wall 42 are connected to each other by a substantially frame-shaped side wall 43. The bottom wall 41, the front wall 42 and the side wall 43 are surrounded by the front wall 42. The circuit board 20 and the light source 30 are accommodated in a space 44 (that is, inside the case body 40) that is an internal space of the case body 40.

  An opening 42a made up of a substantially rectangular opening window is formed at a substantially central portion of the front wall portion 42 of the case body 40, and the translucent portion is formed in the opening 42a so as to close the opening 42a. A translucent cover 45 is provided.

  The translucent cover 45 provided on the case body 40 is made of a translucent synthetic resin material (for example, acrylic resin), and has a curved surface portion (curved shape) 45a having a predetermined curvature, and the curved surface portion. As a light-transmitting member that is integrally formed with a flange-shaped flange portion 45b positioned around the curved surface portion 45a so as to surround 45a, the emitted light L emitted from the light source 30 is transmitted (passed). It has the function of

  Further, in this case, the curved surface portion 45a has such a curvature that, for example, when sunlight (external light) is reflected by the curved surface portion 45a, the reflected light is not reflected to the driver 14 side through the windshield 13. It is assumed that the curved surface shape of the curved surface portion 45a is set so as to include the curved surface portion 45a. In other words, this means that the curved surface portion 45a is formed in a curved surface shape so that the reflected light reflected when receiving external light is not reflected to the driver 14 side through the windshield 13. .

  The front wall portion 42 is formed so as to protrude inward from the opening 42a (that is, the inner wall surface of the front wall portion 42) so as to hold the flange portion 45b of the translucent cover 45 on the lower end side. A holding part 42b having a ridge shape is provided, and the flange part 45b is held by the holding part 42b, so that the translucent cover 45 is disposed in the opening part 42a so as to close the opening part 42a. It has become.

  Reference numeral 46 denotes a light-shielding portion composed of a substantially frame-shaped protruding wall portion that protrudes inwardly from the inner wall surface (inner wall portion) 43a of 43 side wall portions located slightly above the central portion of the side wall portion 43. It is. The light shielding portion 46, which is a protruding wall portion (wall portion) that protrudes inwardly (inner side) of the inner wall surface 43 a, is a part of the emitted light L radiated toward a region away from the optical axis 31 of the light source 30. The portion M has a function as a light shielding member that prevents the translucent cover 45 (the front cover 13) from reaching the inner wall surface 43a located at a substantially central portion of the side wall portion 43 in the case body 40. Yes.

  Therefore, when the light source 30 having a light irradiation region angle (directivity) of 120 degrees is employed as in this example, a part M of the emitted light L emitted toward the region away from the optical axis 31 of the light source 30. Is reflected on the inner wall surface 43a located substantially at the center of the side wall 43, and becomes stray light and travels to the translucent cover 45 side. A part M) of the incident light L is shielded by a light shielding portion 46 formed integrally with the case body 40.

  In addition, if this light-shielding part 46 is provided as a protruding wall part extending inward from the inner wall surface 43a so as to intersect the traveling direction of the emitted light L, it is reflected by the inner wall surface 43a and travels toward the translucent cover 45 side. The progress of light can be effectively blocked. In this case, a shielding space by the light shielding part 46 is formed between the light shielding part 46 and the bottom wall part 41. If the irradiation range of the light from the light source 30 is only limited, it is conceivable to cover the periphery of the light source 30 with a cylindrical member that opens in the light emitting direction. There is a possibility that the light reflected by the inner wall face toward the translucent cover 45.

  According to this configuration, the emitted light L from the light source 30 that passes (transmits) through the translucent cover 45 is emitted from the optical axis 31 of the light source 30 and its vicinity (near), and the substantially frame-shaped light shielding portion 46. Since only the light passing through the window 47 formed in the central region (that is, light from the regular optical path) is used, the light radiated toward the region away from the optical axis of the light source as in the prior art (that is, regular) Prevents unnecessary images (ghost images) from being generated when light from other than the optical path reaches the translucent cover (front glass) as stray light through the inner wall surface of the side wall of the case body. Is done.

  If necessary, a diffusion sheet (diffusion means) (not shown) for diffusing sunlight (external light) incident on the case body 40 through the translucent cover 45 is used as the translucent cover 45 and the light source 30. You may provide between.

  For example, the diffusion sheet may be attached to the back surface of the translucent cover 45 or placed (arranged) on the light shielding portion 46 so as to close the window portion 47. As described above, the diffusion sheet is provided on the back surface of the light-transmitting cover 45 (or the diffusion sheet is placed on the light-shielding portion 46 so as to close the window portion 47), so that the case body passes through the light-transmitting cover 45. Since a part of the external light incident on the inside 40 is diffused (diffusely reflected) by the diffusion sheet, and it is configured not to actively illuminate the internal parts such as the light source 30 accommodated in the case body 40, It is possible to prevent reflection of the internal machine parts on the windshield 13 due to external light.

  The light emitting device 12 is configured by the above units. Next, the electrical configuration of the vehicle head-up display device in this embodiment will be described with reference to FIG. In FIG. 3, 51 is a vehicle speed detection means, 52 is a control means, 53 is a light source drive circuit, and 30 is a light source.

  The vehicle speed detection means 51 is composed of a vehicle speed sensor for detecting the speed of the vehicle, detects a vehicle speed detection signal corresponding to the driving state of the vehicle, and outputs it to the control means 52.

  The control means 52 is composed of a ROM that stores a program for processing operation, a RAM that temporarily stores calculation values, a microcomputer that has a CPU for executing the program, and the like. And mounted on a wiring board (not shown) disposed and fixed to the portion 44).

  The control unit 52 outputs a command signal for controlling the operation of the light source 30 based on the vehicle speed detection signal from the vehicle speed detection unit 51. Specifically, the lighting control of the light source 30 is performed as follows based on the vehicle speed detection signal. That is, in this example, the control means 52 turns on the light source 30 only when the value of the vehicle speed detection signal input according to the driving state of the vehicle exceeds a predetermined threshold (for example, 100 km / h). A command signal is output accordingly.

  The command signal output from the control means 52 is input to the light source driving circuit 53 that drives the light source 30. The light source drive circuit 53 receives the command signal and drives the light source 30, thereby turning on the light source 30.

  Thus, when the light source 30 is turned on when the vehicle speed exceeds 100 km / h, the emitted light L emitted from the light source 30 is emitted from the optical axis 31 and the vicinity of the optical axis 31 as described above (the above-mentioned regular optical path). Light) is emitted to the outside of the case body 40 through the window 47 and the translucent cover 45, and is emitted toward the region away from the optical axis 31 of the light source 30 (regular optical path). Since the light from other than the light is blocked by the light blocking portion 46, the light is not emitted to the outside of the case body 40 through the translucent cover 45.

  And the emitted light L (light from the regular optical path) from the light source 30 emitted to the outside of the case body 40 through the window part 47 and the translucent cover 45 is emitted to the windshield 13 side, and Reflected by the windshield 13 toward the driver 14. The driver 14 can visually recognize a substantially dot-like red light emission image (virtual image V) without a ghost image obtained by this reflection (see FIG. 4). The virtual image V has a function as a warning display that alerts the driver 14 that the speed is excessively high.

  As described above, in the present embodiment, the light source 30 and the case body 40 that accommodates the light source 30 are included, and the light L that is emitted from the light source 30 is a translucent part provided in the case body 40. In the vehicle head-up display device, the case body 40 is made to emit to the outside of the case body 40 through the cover 45 and reflected by the windshield 13 so that the driver 14 can visually recognize the virtual image V obtained by the reflection. The part M of the emitted light L radiated toward the region away from the optical axis 31 of the light source 30 passes through the inner wall surface (inner wall portion) 43a of the side wall portion 43 of the case body 40, and the translucent cover 45 (front A light-shielding part 46 that prevents the glass 13) from reaching is formed. The light-shielding portion 46 is made up of a wall portion that projects from the inner wall surface 43.

  Therefore, the emitted light L from the light source 30 that passes through the translucent cover 45 is emitted only from the optical axis 31 of the light source 30 and the vicinity of the optical axis 31 and passes through the window 47 (light from the regular optical path). It becomes. For this reason, a part of the emitted light radiated toward the region away from the optical axis of the light source becomes stray light as in the conventional case, and passes through the inner wall surface of the side wall portion of the case body to the translucent cover (front glass). It is possible to prevent the generation of an unnecessary image that has occurred due to the arrival of the vehicle, thereby enabling the driver 14 to visually recognize the virtual image V without a ghost image, and to provide a head-up display device for a vehicle with improved display quality. it can.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG. 5. The same reference numerals are used for the same or corresponding parts as in the first embodiment, and the detailed description thereof is as follows. Omitted. The second embodiment is different from the first embodiment in that a light shielding body 60 corresponding to the light shielding portion 46 employed in the first embodiment is formed by a separate member (separate body) from the case body 40. The light shielding body (light shielding portion) 60 and the case body 40 are fixed using screws S that are predetermined fixing means. In this case, it goes without saying that the outer peripheral surface of the light shielding body 60 is in contact with the inner wall surface 43 a of the side wall portion 43.

  In the case of the second embodiment, a pair of screw holes 43b through which the screw portion of the screw S passes is formed slightly above the central portion of the side wall portion 43, and the light shielding body 60 is formed in a substantially frame shape. A pair of screw threaded portions 61 having a concave shape are provided at positions corresponding to the pair of screw holes 43b.

  Then, the light shielding body 60 and the case body 40 are fixed by first arranging the substantially frame-shaped light shielding body 60 in the space 44 so that each screw hole 43b communicates with each screw threaded portion 61, and then The threaded portion of the screw S is passed through the screw hole 43 b from the outside of the side wall portion 43, and the required portion of the screw portion of the screw S passing through each screw hole 43 b is screwed into the screw threaded portion 61. Complete with that. As a result, the light shield 60 is fixed (arranged) inside the inner wall surface 43a so as to come into contact with the inner wall surface 43a.

  Also in the second embodiment, the emitted light L from the light source 30 that passes through the translucent cover 45 is emitted from the optical axis 31 and the vicinity of the optical axis 31, and is formed in the central region of the substantially frame-shaped light blocking body 60. The light that passes through the window 62 and is emitted toward the region away from the optical axis 31 of the light source 30 is blocked by the light-shielding body 60 that is a light-shielding portion, and the translucent cover 45 (the windshield 13). ), The driver 14 can visually recognize the virtual image V without a ghost image, and can obtain the same effects as the first embodiment.

  In the second embodiment, the example in which the light shielding body 60 and the case body 40 are fixed using the screws S has been described. For example, the light shielding body 60 and the case body 40 are not the screws S but a double-sided tape or the like. It may be used for adhesive fixing. In this case, the light shielding body 60 is fixed to the case body 40 by joining the outer peripheral surface of the light shielding body 60 and the inner wall surface 43a of the side wall portion 43 with a double-sided tape.

(Third Embodiment) Next, a third embodiment of the present invention will be described with reference to FIG. 6. The same reference numerals are used for the same or corresponding parts as in the first and second embodiments described above, and the details thereof are described. The detailed explanation is omitted. In the third embodiment, based on the configuration of the first embodiment, the light shielding portion 46 that is integrally formed with the case body 40 is eliminated, and the light source 30 is disposed at a predetermined position on the back surface of the translucent cover 45. A configuration in which a light shielding portion 48 made of a light shielding layer is formed to prevent a part M of the emitted light L radiated toward a region away from the optical axis 31 from reaching the windshield 13 through the inner wall surface 43a of the case body 40. It has become.

  In this case, the light-shielding portion 48 is printed on the back surface portion of the translucent cover 45 excluding the substantially central region on the back surface side of the translucent cover 45 (that is, the periphery on the back surface side of the translucent cover 45). It consists of layers and is formed by printing with black ink using means such as screen printing. When the light shielding portion 48 made of the light shielding layer is formed on the back surface of the translucent cover 45 in this way, the light shielding portion 48 is not formed in the substantially central region on the back surface side of the light transmitting cover 45 described above. The extraction part 49 which becomes will be provided.

  Also in the third embodiment, the emitted light L from the light source 30 that passes through the translucent cover 45 is emitted from the optical axis 31 and the vicinity of the optical axis 31, and the substantially central region on the back side of the translucent cover 45. Only the light that passes through the extraction part 59 formed in the light source and the light emitted toward the region away from the optical axis 31 of the light source 30 is provided at the back surface portion of the translucent cover 45 excluding the extraction part 59. Since the light shielding unit 58 blocks the light transmitting cover 45 (the windshield 13), the driver 14 can visually recognize the virtual image V without a ghost image. The same effect as the form can be obtained.

  In the third embodiment, the example in which the light shielding portion 58 made of the light shielding layer is formed on the back surface portion of the translucent cover 45 excluding the substantially central region on the back surface side of the translucent cover 45 has been described. For example, it goes without saying that the light shielding portion 58 may be provided at a surface portion of the translucent cover 45 excluding a substantially central region on the surface side of the translucent cover 45.

  In each of the above embodiments, the virtual image V, which is a red light emission image, is displayed as the light source 30 is turned on. For example, the virtual image V, which is a red light emission image, is blinked by, for example, blinking the light source 30. It may be. Thus, by displaying the virtual image V in a blinking manner, the alerting force for the driver 14 can be further increased.

  In each of the above embodiments, as the light source 30 is turned on when the vehicle speed exceeds the threshold value, the virtual image V, which is a substantially dot-like red light emission image, is displayed to alert the driver 14 ( An example of prompting a warning) has been described. For example, when the remaining amount of fuel is equal to or less than a predetermined value, or the distance between the host vehicle and another vehicle traveling ahead is equal to or less than a predetermined distance. It may be configured that the virtual image V is displayed (blink display) and the driver 14 is alerted (a warning is urged).

  In each of the above-described embodiments, the example in which the emitted light L emitted from the optical axis 31 and the vicinity of the optical axis 31 directly reaches the translucent cover 45 has been described. A design panel (display member) having a predetermined display design portion (for example, a circular display design portion) between the portions 46 and 60 or between the light source 30 and the translucent cover 45 on which the light shielding portion 58 is formed. You may arrange. In this case, the design panel is formed on the surface of the translucent substrate so as to correspond to the substantially flat translucent substrate serving as the base material and the window portions 47 and 62 (or the punched portion 59). In order to form the background of the display design portion and the background of the display design portion, the display design portion is constituted by a light-shielding background portion provided on the surface portion of the translucent substrate excluding the display design portion. The display design portion and the background portion may be formed on the back surface of the translucent substrate. If necessary, the light source 30 side is flat between the light source 30 and the design panel, and the design panel side is convex. You may arrange | position the lens member which consists of the planoconvex lens used as a shape, or the biconvex lens from which the light source 30 side and the said design panel side become convex shape.

  In each of the embodiments described above, the example in which the emitted light L emitted from the light source 30 is emitted to the windshield 13 has been described. For example, the combiner that reflects the emitted light L in the direction of the driver 14 to the windshield 13 is preferable. A film may be provided, or the emitted light L may be emitted to a dedicated reflecting member different from the windshield 13.

12 Light-emitting device 13 Windshield (reflective member)
14 Driver (User)
DESCRIPTION OF SYMBOLS 20 Circuit board 30 Light source 31 Optical axis 40 Case body 41 Bottom wall part 42 Front wall part 42a Opening part 43 Side wall part 43a Inner wall surface (inner wall part)
44 Space part 45 Translucent cover (translucent part)
45a Curved surface portion 45b Flange portion 46, 48 Light shielding portion 47, 62 Window portion 49 Removal portion 60 Light shielding body (light shielding portion)
L Outgoing light S Screw (fixing means)
V virtual image

Claims (6)

A light source, and a case body that houses the light source,
The emitted light from the light source is emitted to the outside of the case body through a light transmitting portion provided in the case body and reflected by a predetermined reflecting member, and a virtual image obtained by this reflection is used by the vehicle. In a vehicle head-up display device to be visually recognized by a person,
The case body is formed with a light shielding portion that prevents a part of the emitted light radiated toward a region away from the optical axis of the light source from reaching the reflecting member through the inner wall portion of the case body. A head-up display device for a vehicle. The head-up display device for a vehicle according to claim 1, wherein the light-shielding portion includes a wall portion that protrudes from the inner wall portion. A light source, and a case body that houses the light source,
The emitted light from the light source is emitted to the outside of the case body through a light transmitting portion provided in the case body and reflected by a predetermined reflecting member, and a virtual image obtained by this reflection is used by the vehicle. In a vehicle head-up display device to be visually recognized by a person,
A light-shielding portion that prevents a part of the emitted light radiated toward a region away from the optical axis of the light source from reaching the reflecting member via the inner wall portion of the case body is separated from the case body. Formed,
A vehicle head-up display device, wherein the light shielding portion and the case body are fixed using a predetermined fixing means. The vehicle head-up display device according to claim 3, wherein the light-shielding portion includes a wall portion disposed inside the inner wall portion so as to contact the inner wall portion. A light source, and a case body that houses the light source,
The emitted light from the light source is emitted to the outside of the case body through a light transmitting portion provided in the case body and reflected by a predetermined reflecting member, and a virtual image obtained by this reflection is used by the vehicle. In a vehicle head-up display device to be visually recognized by a person,
The light-transmitting portion is formed with a light-shielding portion that prevents a part of the emitted light radiated toward a region away from the optical axis of the light source from reaching the reflecting member through the inner wall portion of the case body. A vehicle head-up display device. The vehicle head-up display device according to claim 5, wherein the light-shielding portion includes a light-shielding layer provided at a periphery of the light-transmitting portion.

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