JP2019194941A - Lamp for vehicle - Google Patents

Abstract

To provide a lamp for a vehicle capable of preventing light incident through a translucent cover of the lamp from being incident on a camera internally mounted in a lamp housing, and improving design properties of an appearance.SOLUTION: In a lamp housing 3 having a translucent cover 32, a camera 2 (imaging means) for picking up an image through the translucent cover 32, and an extension 7 which covers the camera 2, and of which the surface is constituted as a light reflection surface, are provided. The extension 7 includes, in a partial region of the surface, a surface region 72b, for example, an outer peripheral side surface 72b of a movable extension 72 constituting a gap having a tapered cross-sectional shape, of which the gap dimension between the outer peripheral side surface and an inner surface 32a of the translucent cover 32 is gradually increased as separating from the camera 2. The incident light is reflected toward a direction opposite to the camera 2 by the surface region 72b.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vehicular lamp, and more particularly to a vehicular lamp having an imaging means disposed in a lamp housing.

  In vehicles such as automobiles, in order to realize automatic driving control and automatic light distribution control of headlamps, a camera (imaging device) is arranged in the automobile, and the front area of the automobile is imaged with this camera, and the captured image is captured. It has been proposed to analyze and detect other vehicles such as an oncoming vehicle and a preceding vehicle existing in the front area. For example, ADB (Adaptive Driving Beam) light distribution control has been proposed as a technique for controlling light distribution of a headlamp (headlight) of an automobile. This ADB light distribution control is a technology that controls a part of the high beam light distribution pattern of the headlamp so as not to dazzle other vehicles such as oncoming vehicles and preceding vehicles detected from images captured by the camera. is there.

  In this technique, in order to realize high-precision ADB light distribution control, Japanese Patent Application Laid-Open No. 2004-228561 proposes a technique in which a camera is disposed in a lamp housing of a headlamp. In this technique, since the camera optical axis is close to the lamp optical axis, the direction of the other vehicle detected from the image captured by the camera, that is, the angle when the other vehicle is viewed from the own vehicle is irradiated from the headlamp. Therefore, the ADB light distribution control in the headlamp can be performed easily and with high accuracy.

  When the camera is disposed in the lamp housing, light emitted from the headlamp of the oncoming vehicle may enter the lamp housing through the translucent cover, and the incident light may enter the camera. Therefore, whiteout due to halation or the like is likely to occur in an image captured by the camera. Patent Document 2 discloses a technology in which a reflected light reduction unit is formed in a part of an extension that is disposed in a lamp and functions as a pseudo reflector, and the light incident on the camera from the lamp unit is reduced by the reflected light reduction unit. Proposed.

JP 2013-147138 A JP2013-164913A

  The technique disclosed in Patent Document 2 is effective in preventing light emitted from the lamp unit from entering the camera, but is effective in preventing light incident on the light-transmitting cover from the outside from entering the camera. Is not clear. Moreover, in the technique of Patent Document 2, a paint that reduces the reflectance of light is applied to a partial region of the surface of the extension in order to form a reflected light reduction unit. Therefore, an operation for forming the reflected light reduction unit is required. In addition, when such a reflected light reduction part is provided, the function as a pseudo reflector in the extension is not exhibited in this part, and when this headlamp is observed, this part has a different appearance from the other parts, and the design of the headlamp It is possible that a general problem will occur.

  An object of the present invention is to provide a vehicular lamp that prevents light incident through a translucent cover from being incident on an image pickup means and has improved appearance design.

  The present invention relates to a lamp for a vehicle including an imaging unit that performs imaging through the translucent cover and an extension that covers the imaging unit and whose surface is configured as a light reflecting surface in a lamp housing having the translucent cover. In this case, the extension includes a surface region that forms a gap having a tapered cross-sectional shape in which a gap between the extension and the inner surface of the translucent cover gradually increases as the distance from the imaging unit increases. This surface area is preferably arranged in the vertical direction of the imaging means.

  As an embodiment of the present invention, the image pickup means can tilt with respect to the lamp housing, the extension includes a fixed extension supported by the lamp housing and a movable extension supported by the image pickup means, and the movable extension is provided on the fixed extension. Formed as a conical surface with the imaging window as a center, and the conical surface is configured as a surface area.

  As another form of the present invention, the extension is a fixed extension supported by the lamp housing, a part of which is formed as an inclined surface inclined in at least one direction from the imaging window, and the inclined surface is a surface. Configured as an area.

  According to the present invention, the light incident on the lamp is reflected in the gap of the tapered cross-sectional shape between the surface area of the extension configured as the light reflecting surface and the translucent cover, and is directed away from the imaging means. It is prevented from entering the imaging means. As a result, whiteout in the imaging means is prevented, and the design of the lamp in appearance is enhanced.

1 is a horizontal sectional view of a headlamp according to a first embodiment to which the present invention is applied. The perspective view which fractured | ruptured a part of camera vicinity area | region. The enlarged horizontal sectional view and enlarged vertical sectional view of the camera vicinity area. FIG. 6 is a horizontal sectional view and a vertical sectional view of a camera vicinity area according to the second embodiment. FIG. 9 is a horizontal sectional view and a vertical sectional view of a camera vicinity area according to the third embodiment. Sectional drawing explaining an antireflection process or an antireflection process.

(Embodiment 1)
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a horizontal sectional view of an embodiment in which the present invention is applied to a right headlamp HL among right and left headlamps mounted on the left and right front portions of a vehicle body. The left headlamp has the same configuration except that the left and right are symmetrical. In the following description, front and rear and left and right directions mean front and rear and left and right with respect to a car and a headlamp.

  In the right headlamp HL, a lamp unit 1 capable of ADB control and a camera 2 as an imaging means according to the present invention are disposed in a lamp housing 3. Here, the lamp unit 1 is disposed outside the lamp housing 3 in the vehicle width direction, and the camera 2 is disposed inside thereof.

  The lamp housing 3 includes a container-shaped lamp body 31 having a front region opened, and a translucent cover 32 fixed so as to cover the opening of the lamp body 31. The translucent cover 32 transmits the light emitted from the lamp unit 1 and irradiates the front area of the automobile. Further, the camera 2 can image the front area of the automobile through the translucent cover 32.

  A base plate 5 supported by the lamp body 31 by an aiming mechanism 4 is disposed in the lamp housing 3, and the lamp unit 1 and the camera 2 are supported by the base plate 5. The aiming mechanism 4 includes an aiming screw 41. By manually or automatically adjusting the aiming screw 41, the base plate 5 is tilted vertically and horizontally, whereby each of the lamp unit 1 and the camera 2 is adjusted. It is possible to adjust the angle of the optical axis. Since the aiming mechanism 4 having such an aiming screw 41 is already known, detailed description thereof is omitted.

  Although not described in detail, the lamp unit 1 uses a plurality of LEDs (light emitting diodes) 11 as a light source, and projects the light emitted from the LEDs 11 by a projection lens 12 in front of the automobile to perform illumination. It is configured as a lamp unit. Then, by selecting a plurality of LEDs 11 to emit light, it is possible to control the light distribution of the lamp unit 1 to an arbitrary light distribution pattern including high beam light distribution and low beam light distribution, and control by ADB light distribution Is possible.

  Here, the camera 2 is constituted by a digital camera, and a lens barrel 22 is integrally provided on the front surface of the camera body 21. The camera 2 is capable of imaging the front area of the automobile, particularly a vehicle such as a preceding vehicle and an oncoming vehicle existing in the front area, through the translucent cover 32.

  A lamp ECU (electronic control unit) 6 connected to a CAN (Controller Area Network) 100 is disposed in the lamp housing 3. The lamp ECU 6 is electrically connected to the lamp unit 1 and the camera 2, and controls the lighting state of the lamp unit 1, that is, the light emission of the LED 11, based on the image obtained by imaging with the camera 2. Thus, ADB light distribution control is performed.

  Furthermore, an extension 7 that functions as a pseudo reflector is provided in the lamp housing 3. The extension 7 has a light reflecting surface formed by depositing aluminum on the surface. In the first embodiment, the extension 7 includes a fixed extension 71 and a movable extension 72.

  The fixed extension 71 is disposed over almost the entire area along the inner surface of the translucent cover 32 in the lamp housing 3, and covers the lamp unit 1, the camera 2, the base plate 5, the lamp ECU 6, and the like. These are prevented from being exposed to the outside through the translucent cover 32. The fixed extension 71 has a lamp window 71a opened in a region corresponding to the lamp unit 1, and the light emitted from the lamp unit 1 is directed to the front of the headlamp HL through the lamp window 71a. Are emitted. Further, a camera window 71b is opened in an area corresponding to the camera 2, and imaging by the camera 2 is possible through this camera window 71b.

  2 and 3 are views for explaining the details of the movable extension 72. FIG. 2 is a perspective view in which a part including the camera 2 is broken, and FIGS. 3A and 3B are views thereof. It is each horizontal and vertical expanded sectional view. The camera 2 is disposed behind the camera window 71 b provided in the fixed extension 71, and the movable extension 72 is attached to the camera 2.

  The camera 2 includes a camera body 21 and a lens barrel 22, and an image sensor 23 made of a CCD or a CMOS is housed in the camera body 21. The lens barrel 22 includes an imaging lens 24. The imaging lens 24 can form an image of a vehicle to be imaged on the imaging element 23 and perform imaging. In the first embodiment, the camera 2 includes the lens barrel 22. However, in the case of a camera in which the imaging lens 24 is housed in the camera body 21, the lens barrel 22 is read as an imaging lens.

  The movable extension 72 is formed in a conical umbrella shape, and an inner edge portion of a lens hole 72a provided at the top of the movable extension 72 is attached to a tip portion of the lens barrel 22, so that the lens barrel 22 or the camera 2 is almost entirely. It is arrange | positioned so that it may cover. Most of the movable extension 72 including the top thereof is inserted through the camera window 71b and protrudes from the rear surface side of the fixed extension 71 to the front surface side.

  The camera window 71b is formed as a circular hole having a diameter slightly larger than the outer diameter of the lens barrel 22, but is formed to have a diameter slightly smaller than the bottom diameter of the movable extension 72. Has been. The outer peripheral side surface 72b of the movable extension 72 is in contact with the inner edge of the camera window 71b or is spaced apart with a very small size to block the camera window 71b. The movable extension 72 is tilted together with the camera 2 at the time of aiming adjustment. However, even when tilted, the movable extension 72 is kept closed.

  As described above, the movable extension 72 has an outer peripheral side surface 72b opposed to the inner surface 32a of the translucent cover 32, and a gap formed between the outer peripheral side surface 72b and the inner surface 32a is formed in the lens barrel 22. The gap dimension is the smallest at the facing parts, and the gap dimension is gradually increased in the direction away from the camera 2 from this part, in other words, in the outer diameter direction of the movable extension 72 having a conical umbrella shape. 3A and 3B, the gap between the outer peripheral side surface 72b of the movable extension 72 and the inner surface 32a of the translucent cover 32 is formed in a tapered cross-sectional shape in the horizontal cross section and the vertical cross section. Has been. The outer peripheral side surface 72b is configured as a surface region in the present invention.

  According to the first embodiment, although the illustration of the light beam is omitted in FIG. 1, the light emitted from the lamp unit 1 is irradiated to the front region with a required light distribution through the light-transmitting cover 32, and by ADB control. Lighting is performed. Further, a part of the light emitted from the lamp unit 1 is directed to the camera 2 directly or reflected by the translucent cover 32, and these lights are directed from the side with respect to the lens barrel 22 of the camera 2. Since the light is directed, the light is blocked by the fixed extension 71 and the movable extension 72 that cover the side of the lens barrel 22 and is prevented from entering the lens barrel 22. Furthermore, other part of the light is guided toward the camera 2 after being guided through the translucent cover 32, and these lights are also light from the side with respect to the lens barrel 22. Therefore, the light is blocked by the movable extension 72 and is prevented from entering the lens barrel 22.

  On the other hand, as shown by the arrow lines in FIGS. 3A and 3B, the light emitted from the headlamps of the oncoming vehicle (not shown) passes through the translucent cover 32 and is in the front direction of the lens barrel 22. In addition, the light enters the lamp housing 3 from a direction close thereto. In the case of high beam light distribution of the headlamp of the oncoming vehicle, the amount of emitted light is extremely large and is incident at an angle along the optical axis of the lens barrel 22, so that it is easily incident directly on the lens barrel 22 as it is. It is difficult to prevent this. Therefore, in this situation, halation or the like occurs in the camera 2 and the image to be captured is in a whiteout state. Therefore, the lamp ECU 6 stops the ADB control in the lamp unit 1 when such an image is detected.

  When the headlamp of the oncoming vehicle has a low beam light distribution, the emitted light is less than the high beam light distribution and is incident at an angle from the front left to the lower side than the horizontal. Light that is transmitted through is rarely directly incident on the lens barrel 22. A part of the light from the oncoming vehicle is incident on the lens barrel 22 from the direction along the optical axis, but the light of the low beam distribution has a smaller amount of light than the light of the high beam distribution, and the imaging lens 24. Since the image is formed on the image sensor 23, white-out hardly occurs even when the image is taken by the camera 2.

  However, of the incident light, the light projected on the fixed extension 71 or the movable extension 72 is reflected on the surfaces of these extensions 71 and 72 and then projected on the inner surface 32a of the translucent cover 32. Reflected. By repeating this, some light may enter the lens barrel 22 from a random direction.

  In this case, since the fixed extension 71 is further away from the camera 2 than the movable extension 72, the light reflected between the fixed extension 71 and the translucent cover 32 is less likely to enter the lens barrel 22. Even if it is incident, the amount of light reaching the lens barrel 22 is small due to attenuation due to repetitive reflection between the fixed extension 71 and the translucent cover 32. Thereby, there is almost no possibility that whiteout will occur in the camera 2 by these lights.

  On the other hand, since the light reflected between the movable extension 71 and the translucent cover 32 in the vicinity of the camera 2 is reflected at a position close to the camera 2, the reflected light is reflected in a relatively large amount of light. A part of the light enters the lens barrel 22 from a random direction, and whiteout may occur in the camera 2. However, since the movable extension 72 of the first embodiment has an outer peripheral side surface 72b formed in a conical surface, the incident light is outside the movable extension 72 as shown by the arrow lines in FIGS. 3 (a) and 3 (b). The light is reflected in the radial direction, that is, in the direction away from the camera 2. Further, when this reflected light is reflected by the inner surface 32a of the translucent cover 32, it is reflected further away.

  Since such reflection is performed in the entire peripheral region including the top, bottom, left and right of the top of the movable extension 72, the light reflected by the movable extension 72 is reflected toward the direction away from the camera 2, It is prevented from entering the lens barrel 22. In particular, since the gap between the outer peripheral side surface 72b of the movable extension 72 and the inner surface 32a of the translucent cover 32 has a tapered cross-sectional shape, the direction of the light reflected by these is gradually directed in the left-right direction. It is no longer incident on the tube 22. Thereby, the whiteout phenomenon in the camera 2 can be reliably prevented.

  A part of the light reflected by the movable extension 72 and projected onto the inner surface 32a of the translucent cover 32 may enter the translucent cover 32 and be guided therethrough. It is directed away from the camera 2 and is not guided to the camera 2. Therefore, even if this guided light is emitted from the translucent cover 32, it does not enter the lens barrel 22.

  As described above, in the first embodiment, in order to make the fixed extension 71 and the movable extension 72 function as a pseudo reflector, an aluminum film is formed on each surface and the entire surface is configured as a light reflecting surface. It is possible to prevent light from entering the lens barrel 22. Therefore, unlike in Patent Document 2, there is no deterioration in appearance due to the provision of the reflected light reduction part in a part of the extension, and the appearance design through the translucent cover 32 is improved. It is done.

  When the base plate 5 is tilted by the aiming mechanism 4 and the camera 2 is tilted, the movable extension 72 attached to the lens barrel 22 is tilted together with the camera 2 in the camera window 71 b of the fixed extension 71. The Even when tilted in this manner, the tapered cross-sectional shape between the outer peripheral side surface 72b of the movable extension 72 and the inner surface 32a of the translucent cover 32 is maintained, so that the light of the oncoming vehicle is incident on the lens barrel 22. Can be prevented.

(Embodiment 2)
4A and 4B are horizontal and vertical cross-sectional views of the second embodiment, and correspond to FIG. 3 of the first embodiment. The extension 7 of the second embodiment includes a fixed extension 71 as in the first embodiment. An area in which a part of the camera window 71 b of the fixed extension 71 is opened, that is, a partial area centered on the camera window 71 b is an extension formed in a conical shape protruding forward toward the light transmitting cover 32. 73 (hereinafter referred to as a conical extension). The camera 2 is disposed inside the conical extension 73. The outer peripheral side surface 73a of the conical extension 73 is configured as a surface region of the present invention, and the gap between the outer peripheral side surface 73a and the inner surface 32a of the translucent cover 32 is centered on the lens barrel 22 of the camera 2. The taper cross-sectional shape is the same as that of the first embodiment.

  In the second embodiment, as indicated by the arrow lines in FIGS. 4A and 4B, the light of the low beam distribution of the headlamp of the oncoming vehicle is incident on the lamp housing 3 through the translucent cover 32. When it comes, reflection is repeatedly performed between the outer peripheral side surface 73a of the conical extension 73 and the inner surface 32a of the translucent cover 32. In each reflection, the reflected light is directed in the outer diameter direction of the conical extension 73, that is, in the direction away from the camera 2, and can be prevented from entering the lens barrel 22.

  Since the camera window 71b is formed to have a slightly larger diameter than the lens barrel 22, the lens barrel 22 does not interfere with the conical extension 73 when the camera 2 is tilted by the aiming adjustment. The tilting is possible. In this case, as shown in FIG. 4, if the front end of the lens barrel 22 is retracted by a smaller dimension than the inner edge of the camera window 71 b, the light transmitted through the translucent cover 32 is directly incident on the lens barrel 22. The effect of preventing this is promoted.

(Embodiment 3)
5A and 5B are horizontal and vertical cross-sectional views of the third embodiment, and are the same as FIG. 4 of the second embodiment. In the third embodiment, the extension 7 includes a fixed extension 71 as in the second embodiment. Of the fixed extension 71, the region where the camera window 71b is opened is an extension 74 (hereinafter referred to as a roof type extension) that is convex forward and whose front surface 74a is formed in a roof shape in the horizontal and vertical directions. It is comprised as). The roof-type extension 74 has an inclined surface in which the lower region 74aa of the camera window 71b of the front surface 74a is configured to have a larger area than the upper region 74ab and is gradually retracted downward, particularly in the vertical direction. It is configured as. The camera 2 is disposed inside the roof extension 74.

  In the third embodiment, in the lower region 74aa of the front surface 74a of the roof extension 74, the gap with the inner surface 32a of the translucent cover 32 is formed in a tapered cross-sectional shape that gradually increases from the top to the bottom. ing. As for the horizontal direction, the gap between the front surface 74a and the inner surface 32a of the translucent cover 32 is formed in a tapered cross-sectional shape in the same manner as in the first and second embodiments, in the horizontal direction. Therefore, the front surface 74a is configured as a surface area of the present invention.

  In the third embodiment, as shown by the arrow lines in FIGS. 5A and 5B, when the light of the low beam distribution of the headlamp of the oncoming vehicle is incident through the translucent cover, the camera 2 is directed downwardly away from the camera 2 by repeated reflection between the lower region 74aa of the front surface 74a of the roof-type extension 74 and the inner surface 32a of the translucent cover 32. As a result, the incidence on the lens barrel 22 can be prevented.

  The light incident on the left and right regions 74ac or the upper region 74ab of the front surface 74a of the roof extension 74 is left and right or upward away from the camera 2 due to repeated reflection of these regions and the inner surface 32a of the translucent cover 32. Therefore, incidence on the lens barrel 22 can be prevented.

  In the third embodiment, the front surface 74a of the roof type extension 74 may be configured as an inclined plane that simply recedes obliquely downward. That is, it may be configured as a roof-type extension having a sawtooth shape when the front surface 74a is viewed from the side. In this case, the incident light is reflected downward of the camera 2 and does not enter the lens barrel 22.

  In the third embodiment, since the camera window 71b is formed to have a slightly larger diameter than the lens barrel 22 of the camera 2, the lens barrel 22 and the roof extension 74 are used when the camera 2 is tilted during aiming adjustment. Are the same as in the second embodiment, and the camera 2 can be tilted. Further, if the front end portion of the lens barrel 22 is moved backward by a smaller dimension than the inner edge of the camera window 71b, the light transmitted through the translucent cover 32 can be prevented from directly entering the lens barrel 22. Is encouraged.

  Here, in any of Embodiments 1 to 3, the translucent cover 32 may be subjected to an antireflection treatment or an antireflection treatment. By applying an antireflection process or an antireflection process to the light transmitting cover 32, the light reflected by the extension 7 is prevented or suppressed from being reflected by the light transmitting cover 32, so that the light enters the lens barrel 22. It becomes possible to prevent reliably.

  For example, as shown in the example applied to the first embodiment in FIG. 6A, the antireflection process is performed on the imaging area of the camera 2 of the translucent cover 32, that is, the area wider than that including the imaging field angle area. . Here, the antireflection sheet 33 is attached to the inner surface 32a of the region of the translucent cover 32, but an antireflection agent may be applied. Thereby, the light reflection at the inner surface 32a of the translucent cover 32 that has an influence on the imaging of the camera 2 can be prevented, and the light incident on the lens barrel 22 can be more effectively prevented.

  Alternatively, as shown in the example applied to the second embodiment in FIG. 6B, the reflection suppression process is performed on the region other than the imaging region of the camera 2 of the translucent cover 32. Here, minute irregularities, embossing 34, and the like are formed in the region of the inner surface 32a of the translucent cover 32. Thereby, light reflection at the inner surface 32a of the translucent cover 32 that does not affect the imaging of the camera 2 can be suppressed, and these lights can be more effectively prevented from entering the lens barrel 22.

  Such an antireflection process or antireflection process for the translucent cover 32 does not process the surface of the extension 7, so the appearance of the extension 7 observed through the translucent cover 32, particularly the extension 7 The appearance that the entire surface exhibits the appearance of a pseudo-reflector is not impaired. As a result, the design is improved without affecting the appearance of the headlamp.

  Although illustration is omitted, depending on the shape and configuration of the headlamp, a part of the extension 7 built in the lamp housing may not be exposed to the outside through the translucent cover 32. When such an unexposed part exists in the vicinity of the camera, an antireflection process or an antireflection process may be performed on the surface of the part. By doing in this way, the reflection of the light in the said site | part is reduced without reducing the external appearance of a lamp | ramp, and the effect which prevents the entrance of the light to a lens barrel is heightened.

  In the first to third embodiments, examples of the movable extension, the conical extension, and the roof type extension are shown as the form of the surface area in the present invention. However, when the shape of the lamp housing of the headlamp, particularly the shape of the translucent cover, is different. Corresponding to this, the shape of the extension may be changed. That is, light that has entered the vicinity of the camera through the translucent cover is reflected in a direction away from the camera, and the reflected light is further reflected on the inner surface of the translucent cover in a direction away from the camera. If it is a structure, the shape is not limited to the shape of Embodiments 1-3.

  Normally, when the headlamp of an oncoming vehicle has a low beam distribution, the light emitted from the headlamp is incident downward on the camera, so a tapered cross-sectional shape composed of an extension and a translucent cover Is preferably arranged in the vertical direction of the camera. Furthermore, the surface area in the present invention only needs to be disposed at least in the upper and lower areas of the camera, and this configuration alone can provide the effects of the present invention.

  Further, as can be seen from the first to third embodiments, the taper cross-sectional shape of the gap formed by the extension and the translucent cover is not limited to a flat surface on which the taper is formed. That is, it may be a tapered cross-sectional shape of a gap formed by a curved surface and a flat surface, or a curved surface and a curved surface. Therefore, the surface area of the extension may be a curved surface or a plane, or a combination thereof. For example, the conical surface in the first and second embodiments may be a spherical surface or a surface shape close thereto.

  In the first to third embodiments, the light reflection on the inner surface of the translucent cover has been described. However, the light may be reflected on the outer surface of the translucent cover and directed to the camera. In the present invention, an effect of preventing whiteout can be obtained even for light reflected on the outer surface.

  The present invention can also be applied to a lamp in which a camera is fixedly disposed in a lamp housing. In this case, the movable extension of the first embodiment may be formed integrally with the fixed extension. Further, the conical extension of the second embodiment and the inverted trapezoidal extension of the third embodiment may be configured to be integrally attached to the lens barrel of the camera.

  The present invention can also be applied to a lamp having a configuration in which the camera is tilted independently from the lamp unit within the lamp housing. Further, in order to perform stereo imaging, the present invention can be applied to a lamp having a configuration in which a plurality of cameras are integrated with a lamp unit or a plurality of cameras are individually tilted.

1 Lamp unit 2 Camera (imaging means)
3 Lamp housing 4 Aiming mechanism 5 Base plate 6 Lamp ECU
7 Extension 32 Translucent Cover 71 Fixed Extension 72 Movable Extension 72b Outer Side (Surface Area)
73 Conical Extension 73a Outer Side (Surface Area)
74 Roof type extension 74a Front (surface area)

1 is a horizontal sectional view of a headlamp according to a first embodiment to which the present invention is applied. The perspective view which fractured | ruptured a part of camera vicinity area | region. The enlarged horizontal sectional view and enlarged vertical sectional view of the camera vicinity area. FIG. 6 is a horizontal sectional view and a vertical sectional view of a camera vicinity area according to the second embodiment. FIG. 9 is a horizontal sectional view and a vertical sectional view of a camera vicinity area according to the third embodiment. Sectional drawing explaining an antireflection process or an antireflection process.

Claims (8)

  In a lamp housing having a translucent cover, a vehicle lamp comprising an imaging unit that performs imaging through the translucent cover, an extension that covers the imaging unit, and whose surface is configured as a light reflecting surface, The extension has a surface region that forms a gap with a tapered cross-sectional shape in which a gap dimension between the surface and the inner surface of the translucent cover gradually increases as the distance from the imaging unit increases. A vehicle lamp characterized by.   The vehicular lamp according to claim 1, wherein the surface area is disposed in a vertical direction of the imaging unit.   The imaging means can tilt with respect to the lamp housing, and the extension includes a fixed extension supported by the lamp housing and a movable extension supported by the imaging means, and the movable extension is the imaging window. The vehicular lamp according to claim 1, wherein the conical surface is formed as the surface region.   The extension is a fixed extension supported by the lamp housing, a part of which is formed as a conical surface centered on the imaging window, and the conical surface is configured as the surface region. The vehicle lamp according to 2.   The vehicular lamp according to claim 3 or 4, wherein the conical surface is a conical surface.   The extension is a fixed extension supported by the lamp housing, a part of which is formed as an inclined surface inclined in at least one direction from the imaging window, and the inclined surface is configured as the surface region. The vehicle lamp according to claim 1 or 2.   The vehicular lamp according to claim 6, wherein the inclined surface is inclined downward of the lamp housing. The vehicular lamp according to any one of claims 1 to 7, wherein a part of an inner surface of the translucent cover is subjected to an antireflection treatment or an antireflection treatment.

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