Viewing device for vehicle

By employing first and second guiding components and a reflective and light-shielding part in the vehicle vision device, the problem of miniaturization of the device is solved, and the effectiveness of light guidance and visibility are improved.

CN122003344APending Publication Date: 2026-05-08KK TOKAI RIKA DENKI SEISAKUSHO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KK TOKAI RIKA DENKI SEISAKUSHO
Filing Date
2024-10-01
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing vehicle vision devices are difficult to miniaturize while maintaining the effectiveness of light guidance and illumination.

Method used

The first and second guide members extend in the vehicle width direction and extend outward in the vehicle width direction of the vision mechanism. The design of the reflector and the light shield ensures light guidance and blocking, and reduces light leakage.

Benefits of technology

This technology enables the miniaturization of vehicle-mounted vision devices while improving light visibility and the effectiveness of light guidance, and reducing wiring distance and overall device size.

✦ Generated by Eureka AI based on patent content.

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Abstract

Provided is a visual recognition device for a vehicle. In the door mirror device, the first light guide and the second light guide are arranged side by side in the vertical direction, so that the configuration dimensions of the first light guide and the second light guide in the front-rear direction of the vehicle can be reduced. Moreover, a first LED and a second LED are respectively arranged on the inner sides of the first light guide and the second light guide in the vehicle width direction, so that the wiring distance of wiring from the inner sides of the vehicle width direction to the first LED and the second LED can be shortened. Therefore, the door mirror device can be miniaturized.
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Description

Technical Field

[0001] This invention relates to a vehicle vision device that assists in the vision recognition of vehicle occupants by a vision recognition mechanism. Background Technology

[0002] In the exterior rearview mirror described in U.S. Patent Application Publication No. 2012 / 0147614, the mirror lens assists the vehicle occupants in visibility. Furthermore, lamp covers on one and the other extend in the vehicle width direction, with the end of one lamp cover extending outward in the vehicle width direction of the mirror lens, and the end of the other lamp cover extending inward in the vehicle width direction of the mirror lens. Moreover, the light emitted from the LEDs on one and the other is guided by the lamp covers on their respective sides and illuminates from their end sides.

[0003] Here, in the vehicle's exterior rearview mirror, one side of the LED is arranged inside the vehicle width direction of one side of the lamp cover, and the other side of the LED is arranged outside the vehicle width direction of the other side of the lamp cover. Summary of the Invention

[0004] In view of the above facts, the present invention aims to provide a vehicle vision device that can be miniaturized.

[0005] A vehicle vision device according to a first aspect of the present invention includes: a vision mechanism that assists a vehicle occupant in vision; a first guide member that extends in the vehicle width direction and extends outward in the vehicle width direction of the vision mechanism; a second guide member that extends in the vehicle width direction and extends outward in the vehicle width direction of the vision mechanism, and is parallel to the first guide member in the vertical direction; a first emission portion disposed inside the first guide member in the vehicle width direction, and the emitted light is guided by the first guide member and emitted from the end side; and a second emission portion disposed inside the second guide member in the vehicle width direction, and the emitted light is guided by the second guide member and emitted from the end side.

[0006] In the second aspect of the vehicle vision device of the present invention, based on the first aspect of the vehicle vision device of the present invention, the first guide member extends along the light emission direction of the first emission portion, and the second guide member extends along the light emission direction of the second emission portion.

[0007] Regarding the third-party vehicle vision device of the present invention, based on the vehicle vision device of the first or second aspect of the present invention, it includes a reflective portion, wherein a plurality of the reflective portions are provided at intervals on one of the first guide member and the second guide member, and reflect the light guided by one of the first guide member and the second guide member, and are not opposite to the other of the first guide member and the second guide member.

[0008] The vehicle vision device according to the fourth aspect of the present invention is based on the vehicle vision device of any one of the first to third aspects of the present invention, and includes a housing body that houses the first guide member and the second guide member, and is provided with a light-shielding part that blocks light between the first guide member and the second guide member.

[0009] In the fifth embodiment of the present invention, based on the vehicle vision device of any one of the first to fourth embodiments of the present invention, one of the first guide member and the second guide member irradiates light toward the occupant.

[0010] In the sixth aspect of the vehicle vision device of the present invention, based on the fifth aspect of the vehicle vision device of the present invention, one of the first guide member and the second guide member is disposed below the other of the first guide member and the second guide member.

[0011] For the vehicle vision device of the seventh aspect of the present invention, based on the vehicle vision device of any of the first to sixth aspects of the present invention, the position of the light radiating from the end side of the first guide member and the position of the light radiating from the end side of the second guide member overlap in the vertical direction.

[0012] For the vehicle vision device of the eighth aspect of the present invention, based on the vehicle vision device of any one of the first to seventh aspects of the present invention, the curvature of the first guide member in the extension direction is different from the curvature of the second guide member in the extension direction.

[0013] According to the ninth aspect of the present invention, the vehicle vision device, based on any one of the first to eighth aspects of the present invention, includes: a covering portion disposed at a position in the vertical direction of the first guide member and the second guide member, and covering the vision mechanism from all sides; and a displacement mechanism disposed at a position in the vertical direction of the first guide member and the second guide member, and displacing the vision mechanism.

[0014] In the vehicle vision device of the first aspect of the present invention, the vision mechanism assists in the vision recognition of vehicle occupants. Furthermore, the first guide member and the second guide member extend in the vehicle width direction and extend outward in the vehicle width direction of the vision mechanism at their ends. The light emitted from the first emission portion and the second emission portion is guided by the first guide member and the second guide member, respectively, and irradiates from the end side.

[0015] Here, the first guide member and the second guide member are arranged side by side in the vertical direction. Therefore, the configuration dimensions of the first guide member and the second guide member in the vehicle's longitudinal direction can be made smaller.

[0016] Furthermore, a first ejector portion and a second ejector portion are respectively disposed inside the first guide member and the second guide member in the vehicle width direction. Therefore, the wiring distance from the inside of the vehicle width direction to the first ejector portion and the second ejector portion can be shortened.

[0017] Based on the above structure, it is possible to miniaturize vehicle vision devices.

[0018] In the vehicle vision device of the second aspect of the present invention, the first guide member and the second guide member extend along the light emission direction of the first emission portion and the second emission portion, respectively. Therefore, the light emitted from the first emission portion and the second emission portion can be well guided by the first guide member and the second guide member, respectively.

[0019] In the third-party vehicle vision device of the present invention, a plurality of reflective portions are provided at intervals on one of the first guide member and the second guide member, and the light guided by one of the first guide member and the second guide member is reflected by the reflective portions.

[0020] Here, the reflective portion is not opposed to the other of the first and second guide members. Therefore, it is possible to suppress the situation where light leaking from between the reflective portions of one of the first and second guide members is incident on the other of the first and second guide members.

[0021] In the vehicle vision device of the fourth aspect of the present invention, a first guide member and a second guide member are housed in a housing, and a light-shielding portion of the housing blocks light between the first guide member and the second guide member. Therefore, it is possible to suppress light incident between the first guide member and the second guide member.

[0022] In the vehicle vision device of the fifth aspect of the present invention, one of the first guide member and the second guide member illuminates light toward the occupant. Therefore, the occupant is able to see the light.

[0023] In the vehicle visibility device according to the sixth aspect of the present invention, one of the first guide member and the second guide member is disposed below the other of the first guide member and the second guide member. Therefore, the visibility of the light irradiated by one of the first guide member and the second guide member can be improved.

[0024] In the vehicle vision device of the seventh aspect of the present invention, the positions of the light emission points from the end side of the first guide member and the light emission points from the end side of the second guide member overlap in the vertical direction. Therefore, the light emission points from the end side of the first guide member and the light emission points from the end side of the second guide member can be easily configured.

[0025] In the vehicle vision device of the eighth aspect of the present invention, the curvature of the first guide member in the extending direction is different from that of the second guide member in the extending direction. Therefore, the degree of freedom in the configuration of the first guide member and the second guide member can be improved.

[0026] In the vehicle vision device of the ninth aspect of the present invention, the covering part covers the vision mechanism from all sides, and the displacement mechanism displaces the vision mechanism.

[0027] Here, the covering and displacement mechanism are positioned at the vertical location of the first and second guide members. Therefore, even with the covering and displacement mechanism present, the configuration dimensions of the first and second guide members in the vehicle's longitudinal direction can be kept small, as described above, thus preventing the vehicle's vision device from becoming too large in the vehicle's longitudinal direction. Attached Figure Description

[0028] Figure 1A This represents a rear view of the vehicle door rearview mirror device according to an embodiment of the present invention, as observed from the rear of the vehicle.

[0029] Figure 1B This is a front view of the vehicle door rearview mirror device according to an embodiment of the present invention, as seen from the front of the vehicle.

[0030] Figure 2 This is a side view taken from the outside in the vehicle width direction, showing the main part of the door rearview mirror device according to an embodiment of the present invention.

[0031] Figure 3A This is a cross-sectional view taken from above of the vehicle door rearview mirror device according to an embodiment of the present invention. Figure 1B (3A-3A line section view).

[0032] Figure 3B This is a cross-sectional view taken from above of the vehicle door rearview mirror device according to an embodiment of the present invention. Figure 1B (Sectional view along line 3B-3B).

[0033] Figure 4A This is a front view of the lighting device according to an embodiment of the present invention, as seen from the front of the vehicle.

[0034] Figure 4B This is a rear view of the lighting device according to an embodiment of the present invention, viewed from behind the vehicle.

[0035] Figure 5A This is a front view of the main parts of the lighting device according to an embodiment of the present invention, as seen from the front of the vehicle.

[0036] Figure 5B This is a top view showing the main parts of the lamp device according to an embodiment of the present invention.

[0037] Figure 6A This is a front view of the lamp device according to an embodiment of the present invention, viewed from the front of the vehicle. It shows the base ends of the first and second light guides, etc.

[0038] Figure 6B This is a front view of the lamp device according to an embodiment of the present invention, as seen from the front of the vehicle. It shows the middle portion of the first light guide and the second light guide of the lamp device.

[0039] Figure 7A This is a front view viewed from the front of a vehicle, showing in detail the base ends of the first and second light guides of the lamp device according to an embodiment of the present invention.

[0040] Figure 7B This is a perspective view taken from the front of the vehicle and the outside in the vehicle width direction, showing in detail the base ends of the first and second light guides of the lamp device according to an embodiment of the present invention.

[0041] Figure 8A This is a front view of the lamp device according to an embodiment of the present invention, viewed from the front of the vehicle. It shows the end portions of the first and second light guides, etc.

[0042] Figure 8B This is a perspective view of the end portions of the first and second light guides of the lamp device according to an embodiment of the present invention, viewed from the front side of the vehicle and the inside side in the vehicle width direction.

[0043] Figure 9A This is a front view of the first and second light guides of the lamp device according to an embodiment of the present invention, as seen from the front of the vehicle.

[0044] Figure 9B This is a rear view of the first and second light guides, etc., of the lamp device according to an embodiment of the present invention, as viewed from behind the vehicle. Detailed Implementation

[0045] Figure 1A The rear view shown is an embodiment of the present invention, illustrating a vehicle vision device, specifically a door rearview mirror device 10. Figure 1B The door rearview mirror device 10 is shown in a front view taken from the front of the vehicle. Furthermore, Figure 3A Through the cross-sectional view viewed from above ( Figure 1B The 3A-3A sectional view shows the door rearview mirror device 10. Figure 3B Through the cross-sectional view viewed from above ( Figure 1B The 3B-3B sectional view shows the door rearview mirror assembly 10. Additionally, in the accompanying drawing, arrow FR indicates the front of the vehicle, arrow OUT indicates the outer side (right side of the vehicle) in the vehicle width direction, and arrow UP indicates the top.

[0046] The rearview mirror device 10 of this embodiment is provided at the front end of the vehicle in the vertical direction of the middle part of the side door (front side door, not shown) on the side of the vehicle body (car), and is disposed on the outside of the side door.

[0047] like Figure 1A , Figure 1B , Figure 3A and Figure 3B As shown, the rearview mirror device 10 of the vehicle door is provided with a generally rectangular box-shaped baffle 12 as a cover. The inner portion of the baffle 12 in the vehicle width direction is supported by the side door and protrudes towards the rear of the vehicle as it moves outward in the vehicle width direction. The front sidewall and the outer sidewall in the vehicle width direction of the baffle 12 are continuously curved. The front sidewall of the baffle 12 is inclined towards the rear of the vehicle as it moves outward in the vehicle width direction, and the outer sidewall in the vehicle width direction is arranged approximately perpendicular to the vehicle width direction. The rear sidewall of the baffle 12 is formed as a concave cover plate 12A (see reference). Figure 2 The inner part of the cover plate 12A is roughly rectangular and opens to the rear of the vehicle.

[0048] A long, roughly rectangular exposure hole 14 is formed through the baffle 12, extending from the front sidewall of the vehicle to the outer sidewall in the vehicle width direction. The exposure hole 14 extends from the middle of the baffle 12 in the vehicle width direction to the outer end in the vehicle width direction. The exposure hole 14 opens the baffle 12 inward toward the front of the vehicle and outward in the vehicle width direction, and the outer end of the exposure hole 14 in the vehicle width direction opens toward the rear of the vehicle. A rectangular opening 16 is formed through the outer sidewall in the vehicle width direction of the cover plate 12A of the baffle 12. The opening 16 opens the baffle 12 inward toward the direction that moves toward the rear of the vehicle and toward the occupants (especially the driver).

[0049] Inside the baffle 12, an adjustment device 18, which serves as a displacement mechanism, is fixed (see reference). Figure 2 The adjusting device 18 passes through the front side wall (bottom wall) of the cover plate 12A of the baffle 12 and is inserted into the cover plate 12A.

[0050] A generally rectangular plate-shaped rearview mirror 20, serving as a vision mechanism, is supported on the rear side of the vehicle via the adjustment device 18. The rearview mirror 20 is disposed within a cover plate 12A, and its entire outer circumference and the front side of the vehicle are covered by the cover plate 12A. The surface of the rearview mirror 20 faces the rear of the vehicle and is exposed to the rear side of the vehicle via the baffle 12. The occupants of the vehicle view the reflected light from the rearview mirror 20, thereby assisting them in seeing the rear of the vehicle. Furthermore, by operating the adjustment device 18, the rearview mirror 20 tilts (displaces) in the vertical and horizontal directions and in the vehicle width direction, adjusting the direction in which the occupants view the rear through the rearview mirror 20.

[0051] A light device 22 is provided inside the baffle 12 (see reference). Figure 2 , Figure 4A and Figure 4B The lamp device 22 is positioned in the vertical direction between the cover plate 12A of the baffle 12 and the adjustment device 18.

[0052] The lamp device 22 is provided with a long, roughly rectangular box-shaped housing 24 (see reference) that serves as a containment. Figure 5A and Figure 5B The housing 24 is fixed inside the baffle 12, and the lamp device 22 is fixed inside the baffle 12.

[0053] An assembly box 24A, roughly rectangular in shape, is provided at the inner end of the housing 24 in the vehicle width direction. The assembly box 24A is open to the front of the vehicle. A long, roughly rectangular in shape configuration box 24B is integrally provided on the outer side of the assembly box 24A in the vehicle width direction. The configuration box 24B communicates with the interior of the assembly box 24A. The configuration box 24B bends towards the rear of the vehicle as it moves outward in the vehicle width direction. The configuration box 24B is open to the front of the vehicle and outward in the vehicle width direction.

[0054] On the outer side of the assembly box 24A in the vehicle width direction, a rectangular plate-shaped light shield 26 is integrally provided on the bottom surface (rear side of the vehicle) inside the configuration box 24B, serving as a light shield. The light shield 26 protrudes towards the front of the vehicle and is arranged perpendicular to the vertical direction. Also on the outer side of the light shield 26 in the vehicle width direction, on the bottom surface inside the configuration box 24B, a pair of generally rectangular plate-shaped limiting claws 28 are integrally provided. The limiting claws 28 protrude towards the front of the vehicle and are arranged perpendicular to the vertical direction. The pair of limiting claws 28 are opposite each other in the vertical direction, and each end has a generally triangular prism-shaped claw portion 28A integrally provided. The claw portions 28A of the upper and lower limiting claws 28 protrude downwards and upwards, respectively. The lower limiting claw 28 is parallel to the light shield 26 in the vehicle width direction, and functions as both a light shield and a limiting portion (second limiting portion). On the outer side of the lower limiting claw 28 in the vehicle width direction, a long rectangular plate-shaped light-shielding rib 30, which serves as a light-shielding part, is integrally provided on the bottom surface inside the configuration box 24B. The light-shielding rib 30 protrudes towards the front of the vehicle and is arranged in a manner perpendicular to the vertical direction and extends along the vehicle width direction.

[0055] On the upper surface of the light-shielding plate 26 and the upper surface of the light-shielding rib 30, a predetermined number of plate-shaped upper protrusions 32 serving as limiting parts (second limiting parts) are integrally provided (see reference). Figure 6B The upper protrusion 32 protrudes upward and is arranged with its upper surface perpendicular to the vertical direction. On the lower surface of the light-shielding rib 30, a predetermined number of plate-shaped lower protrusions 34, which serve as limiting parts (first limiting parts), are integrally provided. The lower protrusions 34 protrude downward and are arranged with their lower surfaces perpendicular to the vertical direction.

[0056] A first lens 38, which is a long strip and generally rectangular box-shaped, serving as a first light-transmitting member, is provided on the front side of the housing 24. The first lens 38 is made transparent so that light can pass through.

[0057] A generally rectangular box-shaped cover box 38A is provided at the inner end of the first lens 38 in the vehicle width direction, with an opening facing the rear of the vehicle. The cover box 38A is fitted and fixed to the assembly box 24A of the housing 24, and covers the front side of the assembly box 24A in the vehicle width direction. A long strip and generally rectangular box-shaped transmission box 38B is integrally provided on the outer side of the cover box 38A in the vehicle width direction, and the interior of the transmission box 38B communicates with the interior of the cover box 38A. The transmission box 38B bends towards the rear of the vehicle as it moves outward in the vehicle width direction, and has an opening facing the rear of the vehicle and inward in the vehicle width direction. The transmission box 38B is fitted and fixed to the configuration box 24B of the housing 24, and covers the front side of the configuration box 24B in the vehicle width direction and the outer side in the vehicle width direction.

[0058] A U-shaped exposed portion 38C is formed at the midpoint of the vertical direction of the first lens 38. The exposed portion 38C protrudes towards the surface of the first lens 38 and extends along the long side of the first lens 38. The exposed portion 38C is fitted into the exposed hole 14 of the baffle 12 and is exposed to the outside of the baffle 12. The outer end wall of the exposed portion 38C in the vehicle width direction is disposed at the outer end of the vehicle width direction of the mounting box 24B, and the outer end wall of the exposed portion 38C in the vehicle width direction is exposed from the outer end of the exposed hole 14 in the vehicle width direction toward the outer side of the vehicle width direction as it moves toward the rear of the vehicle.

[0059] A generally rectangular box-shaped second lens 40, serving as a second transmission member, is inserted and fitted into the outer end wall of the housing 24 (configuration box 24B) in the vehicle width direction. Figure 4B and Figure 5B The second lens 40 is transparent, allowing light to pass through, and its interior is open towards the front of the vehicle. The second lens 40 protrudes from the housing 24 towards the rear of the vehicle, with its rearward side (bottom surface) facing inward in the vehicle width direction (towards the occupants) as it moves towards the rear of the vehicle. The second lens 40 is embedded in the opening 16 of the cover plate 12A of the baffle 12, and its rearward side is flush with the inner circumferential surface of the cover plate 12A. Furthermore, the rearward side of the second lens 40 overlaps vertically with the outer end wall of the exposed portion 38C of the first lens 38 on the vehicle width direction.

[0060] A generally rectangular plate-shaped circuit board 42 is housed within the assembly box 24A of the housing 24. The circuit board 42 is arranged in a manner approximately perpendicular to the vehicle width direction. A generally rectangular plate-shaped first LED 44, serving as a first ejection portion, is fixed to the lower portion of the outer side of the circuit board 42 in the vehicle width direction (see reference). Figure 7A and Figure 7B The first LED 44 emits light from its outer side in the vehicle width direction. A generally rectangular plate-shaped second LED 46 (see reference 46) is fixed to the upper part of the outer side of the circuit board 42 in the vehicle width direction, serving as the second emission portion. Figure 7A The second LED46 emits light from its outer side in the width direction.

[0061] Inside the housing 24, and below the light shield 26, the lower limiting claw 28, and the light shield rib 30, a rod-shaped first light guide 48 serving as a first guiding member is housed (see reference). Figure 5A , Figure 5B , Figure 9A and Figure 9BThe first light guide 48 is made transparent, allowing light to pass through and guiding it. The first light guide 48 is curved towards the rear of the vehicle, moving outwards in the vehicle width direction, and is opposite to the exposed portion 38C of the first lens 38. The movement of the first light guide 48 within the housing 24 in the vehicle width direction, vertical direction, and vehicle front-to-back direction is restricted. The lower protrusion 34 of the light-shielding rib 30 restricts the upward movement of the first light guide 48 (see reference). Figure 6B ).

[0062] The inner end face (base end face) of the first light guide 48 in the width direction faces the outer side face (light emitting surface) of the first LED 44 in the width direction of the circuit board 42. The inner end face (base end face) of the first light guide 48 in the width direction extends along the light emitting direction of the first LED 44 (the direction perpendicular to the circuit board 42) (see reference). Figure 7A The outer end (end portion) of the first light guide 48 in the vehicle width direction is disposed on the outer side of the rearview mirror 20 in the vehicle width direction, and the outer end face (end face) of the first light guide 48 in the vehicle width direction is disposed near the outer end wall of the exposed portion 38C of the first lens 38 in the vehicle width direction.

[0063] On the upper and lower sides of the inner end of the first light guide 48 in the vehicle width direction, there are integrally provided L-shaped plate-shaped locking pieces 48A, which serve as locking portions. The base end portion of the locking piece 48A protrudes towards the front of the vehicle. The end portion of the locking piece 48A protrudes inward in the vehicle width direction. At the end portions of the upper and lower locking pieces 48A, a circuit board 42 is locked from the rear of the vehicle. A rectangular cross-section fitting recess 48B is formed on the base end portion of the upper locking piece 48A, which serves as a fitting portion. The fitting recess 48B penetrates the upper locking piece 48A in the vehicle width direction and is open towards the rear of the vehicle.

[0064] The back side (rear side of the vehicle) of the first light guide 48 is arranged parallel to the vertical direction. On the back side of the first light guide 48, a plurality of V-shaped and convex reflective surfaces 48C, which serve as reflective portions, are integrally formed. The plurality of reflective surfaces 48C extend in the vertical direction and are arranged at approximately equal intervals in the extending direction of the first light guide 48.

[0065] Inside the housing 24, and above the light shield 26, the lower limiting claw 28, and the light shield rib 30, a rod-shaped second light guide 50 serving as a second guiding member is housed (see reference). Figure 5A , Figure 9A and Figure 9BThe second light guide 50 is made transparent, allowing light to pass through and guiding it. The second light guide 50 curves towards the rear of the vehicle, moving outwards in the vehicle width direction, and is positioned above the exposed portion 38C of the first lens 38. The movement of the second light guide 50 within the housing 24 in the vehicle width direction, vertical direction, and vehicle front-to-back direction is restricted. The upward protrusion 32 of the light shield 26 and the light shield rib 30 restricts the downward movement of the second light guide 50 (see reference). Figure 6B The second light guide 50 is embedded between a pair of limiting claws 28 by the elastic deformation of the pair of limiting claws 28. The pair of limiting claws 28 restrict the vertical movement of the second light guide 50, and the claw portions 28A of the pair of limiting claws 28 restrict the movement of the second light guide 50 toward the front of the vehicle. The second light guide 50 passes through and is fitted into the fitting recess 48B of the upper locking piece 48A of the first light guide 48. The upper locking piece 48A restricts the vertical movement of the second light guide 50 and its movement toward the front of the vehicle (see reference). Figure 6A ).

[0066] The inner end face (base end face) of the second light guide 50 in the width direction faces the outer side face (light emitting surface) of the second LED 46 in the width direction of the circuit board 42. The inner end face (base end face) of the second light guide 50 in the width direction extends along the light emitting direction of the second LED 46 (the direction perpendicular to the circuit board 42) (see reference). Figure 7A and Figure 7B Compared to the area near the outer end of the first light guide 48 in the vehicle width direction, the area near the outer end (terminal portion) of the second light guide 50 in the vehicle width direction has a larger curvature toward the inner side in the vehicle width direction. The outer end of the second light guide 50 in the vehicle width direction is inserted into the second lens 40 from the front side of the vehicle (see reference). Figure 8A and Figure 8B ), and is positioned on the outer side of the rearview mirror 20 in the vehicle width direction.

[0067] Next, the function of this embodiment will be explained.

[0068] In the above-described rearview mirror device 10, in the lamp device 22, the first LED 44 of the circuit board 42 emits light towards the inner end face of the first light guide 48 in the vehicle width direction. The first light guide 48 then guides the light incident on the inner end face in the vehicle width direction and causes it to be emitted from the outer end face in the vehicle width direction. Furthermore, the light emitted from the outer end face of the first light guide 48 in the vehicle width direction passes through the outer end wall of the exposed portion 38C of the first lens 38 in the vehicle width direction, and through the outer end face of the exposed hole 14 of the baffle 12 in the vehicle width direction, radiating in a direction that moves towards the rear of the vehicle and towards the outer side of the vehicle width direction. Moreover, the light emitted from the first lens 38 is amber in color. The first LED 44, the first light guide 48, and the first lens 38 function as the vehicle's turn signal, indicating the vehicle's direction of travel to the outside.

[0069] Furthermore, the second LED 46 of the circuit board 42 emits light towards the inner end face of the second light guide 50 in the vehicle width direction, thereby guiding the light incident on the inner end face in the vehicle width direction and illuminating it from the outer end face in the vehicle width direction. The light emitted from the outer end face of the second light guide 50 in the vehicle width direction passes through the rear sidewall of the second lens 40, through the opening 16 of the baffle 12, and is radiated in a direction towards the occupants as the vehicle moves towards the rear. Moreover, the light emitted from the second lens 40 is amber in color (different in brightness and intensity compared to the light emitted from the first lens 38). The second LED 46, the second light guide 50, and the second lens 40 function as the vehicle's BSM (Blind Spot Monitor), reporting to the occupants that other vehicles are approaching from the rear of the vehicle and to the outer side in the vehicle width direction.

[0070] Here, the extension portion of the first light guide 48 extending along the vehicle width direction and the extension portion of the second light guide 50 extending along the vehicle width direction are arranged side by side in the vertical direction. Therefore, the configuration size of the extension portion of the first light guide 48 extending along the vehicle width direction and the extension portion of the second light guide 50 extending along the vehicle width direction in the vehicle longitudinal direction can be reduced.

[0071] Furthermore, a first LED 44 and a second LED 46 of the circuit board 42 are respectively disposed on the inner side of the first light guide 48 and the second light guide 50 in the vehicle width direction. Therefore, the wiring distance from the inner side (vehicle side) in the vehicle width direction to the first LED 44 and the second LED 46 can be shortened, and the wiring layout space in the vehicle width direction can be reduced.

[0072] Based on the above, the rearview mirror device 10 of the car door can be miniaturized in both the longitudinal and transverse directions and the width direction of the vehicle.

[0073] Furthermore, the area near the outer end of the first light guide 48 in the vehicle width direction and the area near the outer end of the second light guide 50 in the vehicle width direction are arranged side by side in the vertical direction. Therefore, the configuration size of the area near the outer end of the first light guide 48 in the vehicle width direction and the area near the outer end of the second light guide 50 in the vehicle width direction can be made smaller, and the door rearview mirror device 10 can be made more miniaturized in the vehicle width direction.

[0074] Furthermore, the cover plate 12A of the baffle 12 and the adjustment device 18 are positioned vertically on the lamp device 22 (including the first light guide 48 and the second light guide 50). Therefore, even though the cover plate 12A and the adjustment device 18 are located on the rear side of the first light guide 48 and the second light guide 50, the arrangement size of the first light guide 48 and the second light guide 50 in the longitudinal direction of the vehicle can be kept small as described above, thereby preventing the door rearview mirror device 10 from becoming too large in the longitudinal direction of the vehicle.

[0075] Furthermore, the inner end of the first light guide 48 in the vehicle width direction and the inner end of the second light guide 50 in the vehicle width direction extend along the light emission direction of the first LED 44 and the second LED 46, respectively. Therefore, the first light guide 48 and the second light guide 50 can effectively guide the light emitted by the first LED 44 and the second LED 46, respectively.

[0076] Furthermore, the light-shielding plate 26, light-shielding rib 30, and lower limiting claw 28 of the housing 24 block the light between the first light guide 48 and the second light guide 50. Therefore, it is possible to suppress the situation where light is incident between the first light guide 48 and the second light guide 50, and it is possible to suppress the situation where the light guided by the first light guide 48 and the light guided by the second light guide 50 mix.

[0077] Furthermore, the first light guide 48 is disposed below the second light guide 50. Therefore, when the lower part of the rearview mirror 20 that reflects the road surface is darker than the upper part of the rearview mirror 20 that reflects the sky, the first lens 38 can be brought closer to the lower part of the rearview mirror 20, thereby increasing the difference in brightness between the light irradiated by the first light guide 48 and emitted by the first lens 38 relative to the lower part of the rearview mirror 20, thus improving the visibility of the light.

[0078] Furthermore, a plurality of reflective surfaces 48C are spaced apart on the first light guide 48, and the reflective surfaces 48C reflect the light guided by the first light guide 48. Therefore, leakage of light guided by the first light guide 48 from the first light guide 48 can be suppressed.

[0079] Furthermore, the reflective surface 48C is disposed on the back side of the first light guide 48 and is not opposite to the second light guide 50. Therefore, it is possible to suppress the situation where light leaking from between the reflective surfaces 48C of the first light guide 48 enters the second light guide 50 and mixes with the light guided by the second light guide 50.

[0080] Furthermore, compared to the area near the outer end of the first light guide 48 in the vehicle width direction, the area near the outer end of the second light guide 50 in the vehicle width direction has a greater curvature towards the inner side in the vehicle width direction. Therefore, the outer end of the second light guide 50 in the vehicle width direction can be positioned closer to the inner side in the vehicle width direction than the outer end of the first light guide 48 in the vehicle width direction, eliminating the need for the outer ends of the first light guide 48 and the second light guide 50 in the vehicle width direction to be side-by-side in the vertical direction, thus increasing the degree of freedom in the arrangement of the outer ends of the first light guide 48 and the second light guide 50 in the vehicle width direction.

[0081] Furthermore, the position where light emanates from the outer end of the first light guide 48 in the vehicle width direction (the outer end wall of the exposed portion 38C of the first lens 38 in the vehicle width direction) overlaps with the position where light emanates from the outer end of the second light guide 50 in the vehicle width direction (the rear side wall of the second lens 40) in the vertical direction. Therefore, the vertical arrangement size of the exposed portion 38C of the first lens 38 and the second lens 40 can be made smaller, and the exposed portion 38C of the first lens 38 and the second lens 40 can be easily arranged.

[0082] Furthermore, a first LED 44 and a second LED 46 are provided on the outer side (same side) of the circuit board 42 in the vehicle width direction. Therefore, unlike the case where the first LED 44 and the second LED 46 are provided on the outer side and the inner side of the circuit board 42 in the vehicle width direction respectively, the structure of the circuit board 42 can be simplified, and the cost can be reduced.

[0083] In this embodiment, the light emitted from the first lens 38 and the light emitted from the second lens 40 are the same color (amber). However, it is also possible that the light emitted from the first lens 38 and the light emitted from the second lens 40 are different colors.

[0084] Furthermore, in this embodiment, the second LED 46, the second light guide 50, and the second lens 40 function as a BSM (Browser Detector). However, it is also possible that the second LED 46, the second light guide 50, and the second lens 40 have functions other than BSM, such as reporting to the occupants of the vehicle.

[0085] Furthermore, in this embodiment, the first light guide 48 is disposed below the second light guide 50. However, it is also possible that the second light guide 50 is disposed below the first light guide 48. In this case, when the lower portion of the rearview mirror 20 that reflects the road surface is darker than the upper portion of the rearview mirror 20 that reflects the sky, the second lens 40 can be brought closer to the lower portion of the rearview mirror 20. This increases the brightness difference between the light emitted by the second light guide 50 and the lower portion of the rearview mirror 20, thereby improving the visibility of the light.

[0086] Furthermore, in this embodiment, a reflective surface 48C is provided on the first light guide 48. However, it is also possible that the reflective surface 48C is provided on the second light guide 50.

[0087] Furthermore, in this embodiment, the outer end (end portion) of the first light guide 48 in the vehicle width direction and the outer end (end portion) of the second light guide 50 in the vehicle width direction may overlap in the vertical direction.

[0088] Furthermore, in this embodiment, the visibility mechanism is a rearview mirror 20. However, it is also possible that the visibility mechanism is a camera, and the image captured by the camera assists the occupant in visibility.

[0089] The entire publication of Japanese Patent Application No. 2023-188917, filed on November 2, 2023, is incorporated herein by reference.

[0090] Explanation of reference numerals in the attached figures

[0091] 10... Rearview mirror device for vehicle doors (vehicle vision device); 12A... Cover plate (covered part); 18... Adjustment device (displacement mechanism); 20... Rearview mirror (vision mechanism); 24... Housing (receiving body); 26... Sunshade plate (sunshade part); 28... Limiting claw (sunshade part); 30... Sunshade rib (sunshade part); 44... First LED (first emission part); 46... Second LED (second emission part); 48... First light guide (first guiding member); 48C... Reflective surface (reflective part); 50... Second light guide (second guiding member).

Claims

1. A vehicle vision device, characterized in that, have: A visual recognition mechanism that assists in the visual recognition of vehicle occupants; The first guide member extends in the vehicle width direction and extends its end side outward in the vehicle width direction of the recognition mechanism. The second guide member extends in the vehicle width direction and extends its end side outward in the vehicle width direction of the recognition mechanism, and is parallel to the first guide member in the vertical direction. The first emission portion is disposed inside the first guide member in the vehicle width direction, and the emitted light is guided by the first guide member and emitted from the end side; as well as The second emission portion is disposed inside the second guide member in the vehicle width direction, and the emitted light is guided by the second guide member and emitted from the end side.

2. The vehicle vision device according to claim 1, characterized in that, The first guide member extends along the light emission direction of the first emission portion, and the second guide member extends along the light emission direction of the second emission portion.

3. The vehicle vision device according to claim 1 or 2, characterized in that, The device includes a reflective portion, wherein multiple reflective portions are spaced apart on one of the first guide member and the second guide member, and reflect the light guided by one of the first guide member and the second guide member, and are not opposite to the other of the first guide member and the second guide member.

4. The vehicle vision device according to any one of claims 1 to 3, characterized in that, The device includes a housing that houses the first guide member and the second guide member, and is provided with a light-shielding part that blocks light between the first guide member and the second guide member.

5. The vehicle vision device according to any one of claims 1 to 4, characterized in that, One of the first guide member and the second guide member irradiates light toward the occupant.

6. The vehicle vision device according to claim 5, characterized in that, One of the first guide member and the second guide member is disposed below the other of the first guide member and the second guide member.

7. The vehicle vision device according to any one of claims 1 to 6, characterized in that, The positions of the light emitted from the end side of the first guiding member and the light emitted from the end side of the second guiding member overlap in the vertical direction.

8. The vehicle vision device according to any one of claims 1 to 7, characterized in that, The curvature of the first guide member in the extension direction is different from that of the second guide member in the extension direction.

9. The vehicle vision device according to any one of claims 1 to 8, characterized in that, have: The covering portion is disposed at the vertical position of the first guide member and the second guide member, and covers the vision mechanism from all sides; as well as A displacement mechanism is disposed at a position in the vertical direction of the first guide member and the second guide member, and causes the vision mechanism to be displaced.

10. The vehicle vision device according to any one of claims 1 to 9, characterized in that, The device includes a circuit board, on which a first ejection portion and a second ejection portion are provided on the outer side in the vehicle width direction.

Citation Information

Patent Citations

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