Vehicle lamp

Abstract

To provide a vehicle lamp capable of realizing a three-dimensional light-emitting state with a sense of depth.SOLUTION: A vehicle lamp comprises: a light source unit that has a light source, and emits light from the light source to a front surface side; a lens panel that is arranged on the front side of the light source unit, has a lens part with a concave lens part recessed on the back side and a convex lens part protruding to the front side, and emits light from the light source unit to the front side from an emission surface of the lens part; and an outer lens that is arranged on the front side of the lens panel, and emits light emitted from the lens panel to the front side. On a surface of the front side of the lens panel, a light transmission pattern having an opening part shaped so as to corresponding to the shape of the lens part is formed.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to a vehicle lamp. [Background technology]

[0002] 2. Description of the Related Art Vehicle lighting devices having a lens panel that emits light from a light source to the front side are known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-120037 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned vehicle lamp, it is required to realize a three-dimensional light emission state having a sense of depth.

[0005] The present invention has been made in view of the above, and has an object to provide a vehicle lamp capable of realizing a three-dimensional light emission state with a sense of depth. [Means for solving the problem]

[0006] The vehicle lamp of the present invention comprises a light source unit having a light source and emitting light from the light source to the front side, a lens panel arranged on the front side of the light source unit and having a lens section with a concave lens section recessed on the rear side and a convex lens section protruding to the front side, and emitting light from the light source unit to the front side from the emission surface of the lens section, and an outer lens arranged on the front side of the lens panel and emitting light emitted from the lens panel to the front side, and a light transmission pattern having an opening having a shape corresponding to the shape of the lens section is formed on the front side surface of the lens panel. Effect of the Invention

[0007] According to the present invention, it is possible to provide a vehicle lamp capable of realizing a three-dimensional light emission state with a sense of depth. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing an example of the rear part of a vehicle according to this embodiment. [Diagram 2] FIG. 2 is a diagram showing an example of a vehicle lamp according to this embodiment. [Diagram 3] FIG. 3 is a diagram showing an example of a vehicle lamp according to this embodiment. [Figure 4] FIG. 4 is a diagram showing an example of a vehicle lamp according to this embodiment. [Diagram 5] FIG. 5 is a diagram showing an example of a vehicle lamp according to this embodiment. [Figure 6] FIG. 6 is a diagram showing an example of a vehicle lamp according to this embodiment. [Figure 7] FIG. 7 is a diagram showing an example of a vehicle lamp according to this embodiment. [Figure 8] FIG. 8 is a perspective view showing an example of a lens panel according to the present embodiment. [Figure 9] FIG. 9 is a diagram showing an example of the shape of a light reflecting pattern provided on the lens panel according to this embodiment. [Figure 10] FIG. 10 is a perspective view showing an example of the outer shape of the lens panel according to this embodiment. [Figure 11] FIG. 11 is a perspective view showing an example of the outer shape of the lens panel according to this embodiment. [Figure 12] FIG. 12 is a perspective view showing an example of the overall configuration of a vehicle lamp. [Figure 13] FIG. 13 is a perspective view showing an example of the overall configuration of a vehicle lamp. [Figure 14] FIG. 14 is a perspective view showing an example of the overall configuration of a vehicle lamp. [Figure 15] FIG. 15 is a perspective view showing an example of the overall configuration of a vehicle lamp. [Figure 16]FIG. 16 is a perspective view showing an example of the overall configuration of a vehicle lamp. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of a vehicle lamp according to the present invention will be described with reference to the drawings. Note that the present invention is not limited to this embodiment. In addition, the components in the following embodiments include those that are replaceable and easy for a person skilled in the art, or those that are substantially the same.

[0010] In this embodiment, the front and rear directions are directions in a state where the device is mounted on a vehicle (mounted on a vehicle). For example, when the device is mounted on the front of the vehicle, the front is the front direction (front side) and the rear is the rear direction (rear side). When the device is mounted on the rear of the vehicle, the rear is the front direction (front side) and the front is the rear direction (rear side). When the device is mounted on the side of the vehicle, the outside of the vehicle is the front direction (front side) and the inside of the vehicle is the rear direction (rear side).

[0011] FIG. 1 is a diagram showing an example of the rear part of a vehicle 1 according to this embodiment. As shown in FIG. 1, the vehicle 1 includes a vehicle body 2, a running device 3, and a vehicle lamp 100. The vehicle body 2 has a driver's cab in which a driver sits. The vehicle body 2 is supported by the running device 3. The running device 3 has wheels on which tires 4 are mounted, a steering device for changing the traveling direction of the vehicle 1, and a brake device for decelerating or stopping the running device 3. The vehicle 1 includes a boarding door provided on a side of the vehicle body 2, and a back door 7 provided on the rear of the vehicle body 2. The boarding door and the back door 7 are each movably supported by the vehicle body 2 via a hinge mechanism.

[0012] In this embodiment, the vehicular lamp 100 is provided on each of the left and right sides of the rear of the vehicle body 2. In this embodiment, the vehicular lamp 100 is provided at the rear of the vehicle body 2. Therefore, the rear side in the fore-and-aft direction will be described as the front side of the vehicular lamp 100, and the front side in the fore-and-aft direction will be described as the back side of the vehicular lamp 100.

[0013] The vehicle lamp 100 includes a functional lamp. Examples of the functional lamp include a tail lamp provided at the rear of the vehicle body 2 and turned on in conjunction with the lighting of the head lamp, a stop lamp provided at the rear of the vehicle body 2 and turned on in conjunction with the operation of the brake device, and a rear turn signal lamp provided at the rear of the vehicle body 2 and turned on to indicate to the surroundings the traveling direction of the vehicle 1.

[0014] The vehicle lamps 100 are disposed, for example, on the vehicle body 2 side. In this embodiment, the vehicle body 2 is a fixed part. The back door 7 is a movable part. The structure of the vehicle lamp 100 provided on the left rear part of the vehicle body 2 and the structure of the vehicle lamp 100 provided on the right rear part of the vehicle body 2 are symmetrical in the left-right direction and are substantially the same structure. Hereinafter, the vehicle lamp 100 provided on the right rear part of the vehicle body 2 will be mainly described, and the description of the vehicle lamp 100 provided on the left rear part of the vehicle body 2 will be simplified or omitted.

[0015] 2 to 7 are diagrams showing an example of a vehicular lamp 100 according to this embodiment. FIG. 2 is an exploded perspective view showing an example of the vehicular lamp 100. FIG. 3 is a plan view showing a part of the vehicular lamp 100. FIG. 4 is a front view showing an example of the vehicular lamp 100. FIG. 5 is a diagram showing a configuration along the AA cross section in FIG. 4. FIG. 6 is a diagram showing a configuration along the BB cross section in FIG. 4. FIG. 7 is a diagram showing a configuration along the CC cross section in FIG. 4.

[0016] The vehicle lamp 100 includes a light source 10, a light guide 20, an inner lens 30, a reflector 40, a lens panel 50, an inner panel 60, an inner housing 70, an outer lens 80, and an outer housing 90. In this embodiment, the light source 10, the light guide 20, and the inner lens 30 configure a light source unit U.

[0017] The light source 10 may be, for example, a semiconductor light source such as an LED, a laser light source, or the like. The light source 10 has a light emitting surface 11 that emits light. The light source 10 is supported on a circuit board (not shown). The circuit board is supported on a heat dissipation member (not shown) or the like.

[0018] The light guide 20 is rod-shaped. The light guide 20 extends, for example, from the inside of the vehicle to the outside of the vehicle, so as to curve toward the rear side in accordance with the slant shape of the vehicle lamp 100. In this embodiment, the light guide 20 is disposed on the front side of the light source 10.

[0019] 2, the light guide 20 has an incident surface 21, a light guide section 22, and an exit section 23. The incident surface 21 is disposed at one end of the light guide 20 in the longitudinal direction, and faces the light emitting surface 11 of the light source 10. The light from the light source 10 is incident on the incident surface 21. In the light guide 20, the incident surface 21 is disposed, for example, at an end on the outer side and rear side of the vehicle. This shape allows the light from the light source 10 to be appropriately guided inside the vehicle lamp 100 having a slant shape.

[0020] Light guiding section 22 is a section that extends toward the front side from incident surface 21. Light guiding section 22 guides the light that has entered through incident surface 21.

[0021] The exit portion 23 is a portion extending from the light guide portion 22 toward the inside of the vehicle. The exit portion 23 is formed up to the other end side of the light guide 20 in the longitudinal direction. The exit portion 23 guides light from the light source 10 and emits it from the side surface 23a toward the inner lens 30. In this embodiment, as described later, the inner lens 30 is disposed on the lower side of the light guide 20. Therefore, the exit portion 23 emits light downward from the lower part of the side surface 23a. The side surface 23a is provided with a prism portion 23b on the opposite side to the inner lens 30, i.e., on the upper part. The prism portion 23b reflects the light that is incident from the incident surface 21 and is internally reflected by the side surface 23a in the exit direction, i.e., the downward side where the inner lens 30 is disposed. The light reflected by the prism portion 23b is emitted downward from the side surface 23a of the light guide 20 toward the inner lens 30.

[0022] The inner lens 30 guides the light emitted from the light guide 20 and emits it at least in the front direction when mounted on the vehicle. The inner lens 30 is disposed, for example, below the light guide 20. It is formed so as to emit light in the front direction from a band-shaped region along the left-right direction. The inner lens 30 may be configured, for example, such that rod-shaped portions 31 extending in the vertical direction are disposed at intervals in the left-right direction, and adjacent rod-shaped portions 31 are connected by a plate-shaped portion 32. In the inner lens 30, the upper ends of the rod-shaped portion 31 and the plate-shaped portion 32 are incident surfaces 31a and 32a, respectively. The incident surfaces 31a and 32a are disposed at intervals in the vertical direction with respect to the light guide 20. The light emitted from the light guide 20 is incident on the rod-shaped portion 31 and the plate-shaped portion 32 from the incident surfaces 31a and 32a. Prism portions 31p and 32p are formed on the rear side of the rod-shaped portion 31 and the plate-shaped portion 32. Prism portions 31p, 32p internally reflect light traveling inside inner lens 30 in a front direction. Exit surfaces 31b, 32b are provided on the front sides of rod-shaped portion 31 and plate-shaped portion 32. Exit surfaces 31b, 32b emit the light internally reflected by prism portions 31p, 32p toward the front side (rear of the vehicle). Note that the configuration of inner lens 30 is not limited to the above configuration.

[0023] The reflector 40 is disposed above the light guide 20. The reflector 40 has a reflective surface 41 disposed so as to protrude forward of the inner lens 30 (see Figs. 5, 6, etc.). The reflective surface 41 is disposed along a horizontal plane and faces downward. The reflector 40 reflects light directed upward from the inner lens 30.

[0024] The lens panel 50 is disposed on the front side of the inner lens 30. Fig. 8 is a perspective view showing an example of the lens panel 50 according to this embodiment. Fig. 9 is a diagram showing an example of the shape of a light reflection pattern provided on the lens panel 50 according to this embodiment. Figs. 10 and 11 are perspective views showing an example of the outer shape of the lens panel 50 according to this embodiment. Fig. 10 is a view from the front side, and Fig. 11 is a view from the rear side. Note that Figs. 10 and 11 show a state in which a light transmission pattern 55, which will be described later, is not formed.

[0025] The lens panel 50 has a concave lens portion (lens portion) 51, a convex lens portion (lens portion) 52, a standing wall portion 53, and a light transmitting pattern 55.

[0026] The concave lens portion 51 has a shape that is concave toward the rear surface side. The concave lens portion 51 is formed in a plate shape using a material that can transmit light, and is curved so as to be concave toward the rear surface side from the upper and lower ends in the vertical direction to the center. The concave lens portion 51 has an incident surface 51a and an exit surface 51b. The incident surface 51a is disposed on the rear surface side, and light emitted from the inner lens 30 enters the incident surface 51a. The exit surface 51b is disposed on the front surface side, and emits light that enters from the incident surface 51a.

[0027] The convex lens portion 52 has a shape that protrudes toward the front side. The convex lens portion 52 is formed in a plate shape using a material that can transmit light, and has a curved shape that protrudes toward the front side from the upper and lower ends in the vertical direction to the center. The convex lens portion 52 has an incident surface 52a and an exit surface 52b. The incident surface 52a is located on the rear side, and light emitted from the inner lens 30 is incident on the incident surface 52a. The exit surface 52b is located on the front side, and emits light that is incident from the incident surface 52a.

[0028] The standing wall portion 53 is formed so as to connect the adjacent concave lens portion 51 and convex lens portion 52. The standing wall portion 53 is formed so as to intersect in the left-right direction and extend along the front-rear direction. As shown in Fig. 7, the standing wall portion 53 is formed so as to expand in the left-right direction from the concave lens portion 51 toward the convex lens portion 52. The standing wall portion 53 has a light diffusing portion such as a grain formed on a surface 53a on the rear side.

[0029] The light-transmitting pattern 55 is formed on the front surface of the lens panel 50. Fig. 8 also shows an enlarged view of the cross-sectional configuration of the light-transmitting pattern 55. The light-transmitting pattern 55 has a light-reflecting layer 55a, a coating layer 55b, and openings 55c and 55d.

[0030] The light reflecting layer 55a is formed on the entire front surface of the transparent member 50R (see FIG. 10) constituting the lens panel 50, i.e., on the exit surface 51b of the concave lens portion 51, the exit surface 52b of the convex lens portion 52, the front surface 53b of the standing wall portion 53, the front portion 61a and the lower surface portion 61b of the upper portion 61 of the inner panel 60, and the front portion 62a and the upper surface portion 62b of the lower portion 62. The light reflecting layer 55a is formed using a material capable of reflecting light, such as a metal material such as aluminum. The light reflecting layer 55a may be formed using a resin material capable of reflecting light, such as a white resin.

[0031] The coating layer 55b is formed over the entire surface of the light reflecting layer 55a. The coating layer 55b is formed using a material of a predetermined color, such as black resin. The coating layer 55b can be formed, for example, with a glossy surface.

[0032] The opening 55c is formed in a portion of the light reflecting layer 55a and the coating layer 55b that is disposed on the exit surface 51b of the concave lens portion 51. The opening 55d is formed in a portion of the light reflecting layer 55a and the coating layer 55b that is disposed on the exit surface 52b of the convex lens portion 52. The openings 55c and 55d are formed penetrating the light reflecting layer 55a and the coating layer 55b. The openings 55c and 55d are portions that expose the exit surfaces 51b and 52b from the light reflecting layer 55a and the coating layer 55b. The openings 55c and 55d are portions through which the light emitted from the exit surfaces 51b and 52b passes.

[0033] The openings 55c, 55d are formed, for example, by applying a so-called laser etching process in which a portion where the light reflecting layer 55a and the coating layer 55b are laminated is irradiated with laser light from the coating layer 55b side. In this case, the exposed portions of the emission surfaces 51b, 52b exposed at the openings 55c, 55d may be formed in a roughened state or recessed toward the back side with respect to other portions of the emission surfaces 51b, 52b, for example, during the process of performing the laser etching.

[0034] The opening 55c is formed in a band shape extending in the left-right direction. The opening 55c is formed so that the dimension (width) in the up-down direction is constant in the left-right direction. A plurality of openings 55c are arranged in the up-down direction. The exit surface 51b of the concave lens portion 51 is formed so as to be recessed toward the rear side from the upper and lower ends in the up-down direction to the center. Correspondingly, the openings 55c are formed so that the opening area per unit area is larger from the center in the up-down direction to both ends in the up-down direction. In other words, the openings 55c formed on the upper and lower sides in the up-down direction are formed so that the opening area is larger than that of the opening 55c formed in the center in the up-down direction. As a result, the light transmission pattern 55 is formed so that the both ends in the up-down direction located on the front side of the exit surface 51b of the concave lens portion 51 transmit more light per unit area than the center in the up-down direction located on the back side. For this reason, when the light emission state is viewed from the front side, it appears three-dimensional from both ends in the up-down direction to the center, as if they are located from the front side to the back side.

[0035] Opening 55d is formed to extend in the up-down direction. A plurality of openings 55d are arranged in the left-right direction. In this manner, the orientations of openings 55c and openings 55d are different between light transmitting pattern 55 arranged in concave lens portion 51 and light transmitting pattern 55 arranged in convex lens portion 52, that is, they are arranged with a 90° shift.

[0036] The emission surface 52b of the convex lens portion 52 is formed so as to protrude from the upper and lower ends to the center in the vertical direction toward the front side. Correspondingly, the opening 55d is formed so that the opening area per unit area becomes larger from the upper and lower ends to the center in the vertical direction. In other words, the size (width) in the left and right direction becomes smaller (thinner) from the center in the vertical direction to the upper and lower ends in the vertical direction. Therefore, the opening 55d is formed so that the opening area becomes larger from the upper and lower ends to the center in the vertical direction. As a result, the light transmission pattern 55 is formed so that the vertical center located on the front side of the emission surface 52b of the convex lens portion 52 transmits more light per unit area than the upper and lower ends in the vertical direction located on the rear side. Therefore, when the light emission state is viewed from the front side, it appears three-dimensional from the vertical center to both ends in the vertical direction, as if they are located from the front side to the back side.

[0037] 9(A) is a shape in which each opening extends in one direction, and the widthwise dimension increases from both ends in the longitudinal direction toward the center. In other words, the widthwise dimension tapers from the center to both ends in the longitudinal direction. This shape is applied to the opening 55d of the light transmission pattern 55 described above, for example.

[0038] 9B, the openings extend in one direction and have a uniform width from both ends to the center in the longitudinal direction. This shape is applied to the openings 55c of the light transmitting pattern 55 described above, for example.

[0039] The shape shown in Fig. 9(C) is a shape in which circular openings are arranged in a staggered manner so as to be shifted by a radius in the left-right direction. The shape of the opening shown in Fig. 9(C) may be applied to at least one of the openings 55c and 55d of the light transmission pattern 55 described above.

[0040] In addition, in the standing wall portion 53, the surface of the paint layer 55b becomes the surface 53c of the standing wall portion 53. The surface 53c of the standing wall portion 53 becomes a reflecting surface 58 that reflects light emitted from the exit surface 51b of the concave lens portion 51 and passing through the opening 55c toward the front of the vehicle. When the light that has passed through the opening 55c is reflected by the surface 53c (reflecting surface 58) of the standing wall portion 53, the image of the opening 55c is visually recognized as being reflected on the surface 53c when viewed from the front side. Note that the light transmission pattern 55 may have an opening formed in a portion arranged in the standing wall portion 53.

[0041] The surface 53c of the standing wall portion 53 is disposed at a position on the extension of the opening 55c. In this configuration, when the light passing through the opening 55c is reflected by the surface 53c of the standing wall portion 53, an image of the opening 55c is reflected on the surface 53c of the standing wall portion 53, so that the image of the opening 55c can be visually recognized as if it is connected to the surface 53c. Among the standing walls 53 disposed at both ends in the left-right direction of the concave lens portion 51, the surface 53c of the standing wall portion 53 disposed on the inside of the vehicle can be formed so as to have a higher light reflectance than other portions. In this configuration, when viewed from the outside of the vehicle, the image of the opening 55c reflected on the surface 53c of the standing wall portion 53 on the inside of the vehicle can be visually recognized more clearly.

[0042] Furthermore, in the lens panel 50, a light diffusion portion 59 is formed on the entire surface of the rear side of the transparent member 50R (see FIG. 11) constituting the lens panel 50. As the light diffusion portion 59, for example, a texture can be given. For example, a light diffusion member or the like may be disposed as the light diffusion portion 59. The light diffusion portion 59 may be selectively formed on the entrance surface 51a of the concave lens portion 51, the entrance surface 52a of the convex lens portion 52, the surface 53a on the rear side of the standing wall portion 53, or the like.

[0043] 5 and 6, the inner panel 60 supports the lens panel 50. The inner panel 60 is formed integrally with the lens panel 50. The inner panel 60 has an upper portion 61 and a lower portion 62.

[0044] The upper portion 61 supports the upper ends of the concave lens portion 51 and the convex lens portion 52. The upper portion 61 has a front portion 61a and a bottom portion 61b. The front portion 61a is disposed on the front side of the upper portion 61. The bottom portion 61b is disposed at the bottom end of the upper portion 61. The bottom portion 61b is disposed so as to protrude forward from the upper ends of the emission surfaces 51b, 52b. The bottom portion 61b is formed so as to incline upward from the upper ends of the emission surfaces 51b, 52b towards the front side.

[0045] The lower portion 62 supports the lower ends of the concave lens portion 51 and the convex lens portion 52. The lower portion 62 has a front portion 62a and an upper surface portion 62b. The front portion 62a is disposed on the front side of the lower portion 62. The upper surface portion 62b is disposed at the upper end of the lower portion 62. The upper surface portion 62b is disposed so as to protrude forward from the lower ends of the emission surfaces 51b, 52b. The upper surface portion 62b is formed so as to incline downward from the lower ends of the emission surfaces 51b, 52b towards the front side.

[0046] In the upper portion 61 of the inner panel 60, the lower surface portion 61b serves as a reflecting surface 58 that reflects light emitted from the emission surfaces 51b, 52b and passed through the openings 55c, 55d, toward the front of the vehicle. Similarly, in the lower portion 62 of the inner panel 60, the upper surface portion 62b serves as a reflecting surface 58 that reflects light emitted from the emission surfaces 51b, 52b and passed through the openings 55c, 55d, toward the front of the vehicle.

[0047] When light passing through openings 55c, 55d is reflected by lower surface portion 61b and upper surface portion 62b, images of openings 55c, 55d are visible on lower surface portion 61b and upper surface portion 62b when viewed from the front side.

[0048] Of the lower surface portion 61b and the upper surface portion 62b, the convex side regions 61c, 62c arranged at the upper and lower ends of the convex lens portion 52 are located in the direction in which the opening 55d of the light transmission pattern 55 formed in the convex lens portion 52 extends, that is, on the extension of the opening 55d. In this case, when viewed from the front side, it is possible to visually recognize as if the image of the opening 55d is connected to the convex side regions 61c, 62c. The convex side regions 61c, 62c can be formed so as to have a higher light reflectance than other parts of the lower surface portion 61b and the upper surface portion 62b. In this configuration, the image of the opening 55d reflected in the convex side regions 61c, 62c can be visually recognized more clearly.

[0049] The inner housing 70 supports the light source 10, the light guide 20, the inner lens 30, the reflector 40, the lens panel 50, and the inner panel 60 described above.

[0050] The outer lens 80 is disposed on the front side, i.e., rear side, of the lens panel 50. The outer lens 80 outputs the light emitted from the lens panel 50 to the outside of the vehicle lamp 100. The outer lens 80 is plate-shaped. The outer lens 80 has a shape that is curved toward the rear side from the inside of the vehicle to the outside of the vehicle. The outer lens 80 is formed, for example, using a resin material that is transparent or has a color similar to the lighting color.

[0051] The outer housing 90 forms a lamp chamber between itself and the outer lens 80. The light source 10, the light guide 20, the inner lens 30, the reflector 40, the lens panel 50, the inner panel 60 and the inner housing 70 are accommodated or supported in the lamp chamber.

[0052] An example of turning on the vehicle lamp 100 configured as above will be described. When a driver performs a predetermined operation to turn on the tail lamp, the vehicle lamp 100 acquires an operation signal from an operation device. A control circuit provided on a board or the like of the light source 10 controls the light emission of the light source 10 in response to the acquired signal.

[0053] By this light emission control, light is emitted from light emitting surface 11 of light source 10. This light is incident on light guiding section 22 from incident surface 21 of light guide 20. The light that has entered light guiding section 22 is guided by light guiding section 22 to enter exit section 23, is internally reflected by prism section 23b, and is emitted downward from side surface 23a.

[0054] The light emitted downward from the side surface 23a of the emission portion 23 enters the inner lens 30 from the end faces 31a, 32a. The light that enters the inner lens 30 is internally reflected by the prism portions 31p, 32p, etc., and is emitted to the front side of the inner lens 30. The light that is emitted to the front side of the inner lens 30 reaches the lens panel 50, and enters through the entrance surface 51a of the concave lens portion 51 and the entrance surface 52a of the convex lens portion 52.

[0055] 7 and 8, a part of the light incident on the entrance surface 51a (hereinafter, referred to as light L1) reaches the exit surface 51b and passes through the opening 55c to be emitted to the front side. The light L1 that passes through the opening 55c passes through the outer lens 80 to be emitted to the rear of the vehicle.

[0056] 7 and 8, a part of the light incident on the entrance surface 52b (hereinafter, referred to as light L2) reaches the exit surface 52b, passes through the opening 55d, and is emitted to the front side. The light L2 that passes through the opening 55d passes through the outer lens 80 and is emitted to the rear of the vehicle.

[0057] 8, a part of the light incident on the entrance surface 51 or the entrance surface 52b (hereinafter referred to as light L3) reaches the exit surface 51b or the exit surface 52b and is reflected to the rear side by the light reflecting layer 55a. The reflected light L3 is reflected at each portion and travels again to the front side, whereby it is reused.

[0058] 7 and 8, a part of the light incident on the entrance surface 51a (hereinafter, referred to as light L4) reaches the exit surface 51b and passes through the opening 55c to be emitted to the front side. The light L4 that passes through the opening 55c is reflected to the front side by the surface 53b of the standing wall portion 53 and reaches the outer lens 80. This light L4 passes through the outer lens 80 to be emitted to the rear of the vehicle.

[0059] 6 and 8, a portion of the light incident on the entrance surface 52a (hereinafter, referred to as light L5) reaches the exit surface 52b and passes through the opening 55d to be emitted to the front side. The light L5 that passes through the opening 55d is reflected to the front side by the lower surface portion 61b or the upper surface portion 62b of the inner panel 60 and reaches the outer lens 80. This light L5 passes through the outer lens 80 to be emitted to the rear of the vehicle.

[0060] As described above, the vehicle lamp 100 of this embodiment has a light source 10, a light source unit U that emits light from the light source 10 to the front side, a lens panel 50 that is arranged on the front side of the light source unit U and has lens sections, namely, a concave lens section 51 that is recessed toward the back side and a convex lens section 52 that protrudes toward the front side, and emits light from the light source unit U to the front side from emission surfaces 51b, 52b of the lens section (51, 52), and an outer lens 80 that is arranged on the front side of the lens panel 50 and emits light emitted from the lens panel 50 to the front side, and a light transmission pattern 55 having openings 55c, 55d shaped corresponding to the shapes of the lens sections (51, 52) is formed on the front side surface of the lens panel 50.

[0061] According to this configuration, the lens panel 50 has lens portions having concave lens portions 51 and convex lens portions 52, and a light-transmitting pattern 55 having openings 55c, 55d shaped corresponding to the shapes of the lens portions (51, 52) is formed on the front surface, thereby making it possible to realize a three-dimensional light-emitting state with a sense of depth when viewed from the front side.

[0062] In the vehicle lamp 100 according to this embodiment, the light transmission pattern 55 is formed so that the portion located on the front side of the lens portion (51, 52) transmits more light per unit area than the portion located on the rear side.

[0063] With this configuration, when viewed from the front, the amount of light transmitted decreases from the front side (near side) to the back side (deep side), making it possible to realize a three-dimensional light-emitting state with a sense of depth.

[0064] In the vehicle lamp 100 of this embodiment, the light-transmitting pattern 55 has a laminated portion formed of a light-reflecting layer 55a arranged on the front surface of the lens portion (51, 52) and a paint layer 55b laminated on the light-reflecting layer 55a, and the openings 55c, 55d are formed by penetrating the light-reflecting layer 55a and the paint layer 55b.

[0065] According to this configuration, the light reflecting layer 55a is formed on the front surface of the lens portion (51, 52), so that the light that does not pass through the openings 55c, 55d can be returned to the rear side and reused. Also, the paint layer 55b is laminated on the light reflecting layer 55a, so that the light reflecting layer 55a can be hidden when viewed from the front side.

[0066] In the vehicle lamp 100 according to this embodiment, the lens panel 50 has a light diffusion portion 59 on the incident surface of the lens portions (51, 52).

[0067] According to this configuration, the light diffusion portion 59 is provided on the entrance surface of the lens portion of the lens panel 50, so that the light entering the lens panel 50 can be diffused and emitted from the exit surfaces 51b, 52b and the openings 55c, 55d. This allows homogeneous light to be emitted toward the outer lens 80.

[0068] In the vehicle lamp 100 according to this embodiment, the lens panel 50 has a reflecting surface 58 around the lens portion (51, 52) that reflects the light emitted from the emission surfaces 51b, 52b toward the front of the vehicle.

[0069] According to this configuration, since the reflective surface 58 is provided around the lens portion (51, 52), in the light emitting state, the observer can visually recognize the light reflected by the reflective surface 58 when viewed from the front side.

[0070] In the vehicle lamp 100 of this embodiment, the lens panel 50 has concave lens portions 51 and convex lens portions 52 arranged alternately in at least one of the left-right direction and the up-down direction when mounted on the vehicle, and has a vertical wall portion 53 connecting adjacent concave lens portions 51 and convex lens portions 52, and a reflective surface 58 is formed on a surface 53b of the vertical wall portion 53.

[0071] According to this configuration, in the light emitting state, the light reflected by the surface 53b of the standing wall portion 53 can be visually recognized by an observer.

[0072] In the vehicle lamp 100 according to this embodiment, the upright wall portion 53 arranged on the vehicle inner side of the concave lens portion 51 has a surface 53b formed so as to have a higher light reflectance than other portions.

[0073] According to this configuration, in the light emitting state, the image of the opening 55c reflected on the surface 53c of the standing wall portion 53 can be more clearly visually recognized by an observer looking from outside the vehicle.

[0074] The vehicle lamp 100 of this embodiment further includes an inner panel 60 that is arranged on the front side of the lens portion (51, 52) and supports the lens panel 50, and the reflective surface 58 is formed on the surface (lower surface portion 61b, upper surface portion 62b) of the inner panel 60 facing the lens portion (51, 52).

[0075] According to this configuration, the light reflected by the surfaces (lower surface portion 61b, upper surface portion 62b) of the inner panel 60 on the lens portion (51, 52) side can be visually recognized by an observer.

[0076] In the vehicle lamp 100 according to this embodiment, the light-transmitting pattern 55 is formed so that the openings 55c, 55d that transmit light extend in one direction, and the reflective surface 58 is disposed at a position on the extension of the openings 55c, 55d.

[0077] According to this configuration, in the light-emitting state, when light passing through openings 55c, 55d is reflected by reflective surface 58, the images of openings 55c, 55d are projected onto reflective surface 58, making it appear as if the images of openings 55c, 55d are connected to reflective surface 58.

[0078] In the vehicle lamp 100 according to this embodiment, the portions of the reflective surface 58 to which the openings 55c, 55d extend are formed so as to have a higher light reflectance than other portions.

[0079] According to this configuration, in the portion of the reflecting surface 58 to which the openings 55c and 55d extend, the images of the openings 55c and 55d reflected on the reflecting surface 58 can be more clearly viewed.

[0080] Figures 12 to 16 are perspective views showing examples of the overall configuration of a vehicle lamp, each of which shows the vehicle lamp as viewed from the front side.

[0081] 12 has the configuration described above. That is, the vehicle lamp 100 has a light transmission pattern 55 in which concave lens portions 51 and convex lens portions 52 are arranged alternately in the left-right direction, an opening 55c is provided on an exit surface 51b of the concave lens portion 51, and an opening 55d is provided on an exit surface 52b of the convex lens portion 52.

[0082] 13 is configured such that the concave lens portions 51 and the convex lens portions 52 are alternately arranged in the vertical direction in addition to the horizontal direction. In this manner, the arrangement of the concave lens portions 51 and the convex lens portions 52 is not limited to the configuration described above.

[0083] The vehicle lamp 100B shown in Fig. 14 is configured such that a portion (convex lens portion) protruding toward the front side of the lens panel 50B and a portion (concave lens portion) recessed toward the back side are formed by combining triangular exit surfaces 54B in the lens panel 50B. In this manner, a configuration in which one concave lens portion and one convex lens portion are formed by a plurality of exit surfaces may be used. The shape of the exit surface is not limited to a triangular shape, and may be another type of polygon, such as a quadrangle.

[0084] Vehicle lamp 100C shown in Fig. 15 has a configuration in which concave lens portion 51C is formed in a groove shape with respect to convex lens portion 52C. Vehicle lamp 100C is configured such that light is emitted from the entire exit surface of convex lens portion 52C, and the entire exit surface of concave lens portion 51C is light-shielded. In addition, convex lens portion 52C arranged on the lower side in the vertical direction also emits light from a lower surface arranged below the exit surface.

[0085] Vehicle lamp 100D shown in Fig. 16 has a configuration in which concave lens portion 51D is formed in a groove shape in convex lens portion 52D, similar to vehicle lamp 100C shown in Fig. 15. In vehicle lamp 100D, the area of ​​the light exit surface per convex lens portion 52D is smaller than that of vehicle lamp 100C. In this configuration, light is emitted from the entire convex lens portion 52D, and the entire light exit surface of concave lens portion 51C is shielded.

[0086] As shown in the above-mentioned vehicle lamps 100, 100A, 100B, 100C, and 100D, by combining a concave lens portion and a convex lens portion and providing a light-transmitting pattern having openings shaped corresponding to the shapes of each lens portion, it is possible to realize a three-dimensional light-emitting state with a sense of depth.

[0087] The technical scope of the present invention is not limited to the above embodiment, and can be modified as appropriate without departing from the spirit of the present invention. For example, in the above embodiment, the light source unit U is described as having a light source 10, a light guide 20, and an inner lens 30, but is not limited to this configuration. For example, at least one of the light guide 20 and the inner lens 30 may not be provided. [Explanation of symbols]

[0088] L1, L2, L3, L4, L5...light, U...light source unit, 1...vehicle, 2...vehicle body, 3...running gear, 4...tire, 7...back door, 10...light source, 11...light emitting surface, 20...light guide, 21, 31a, 32a, 51a, 52a...entrance surface, 22...light guide section, 23...exit section, 23a...side surface, 23b, 31p, 32p...prism section, 30...inner lens, 31...rod-shaped section, 31b, 32b, 51b, 52b, 54B...exit surface, 32...plate-shaped section, 40...reflector, 41, 58...reflective surface, 50, 50B...lens panel, 50R...transparent member, 51, 51 C, 51D...concave lens portion, 52, 52C, 52D...convex lens portion, 53...standing wall portion, 53a, 53b, 53c...surface, 55...light transmission pattern, 55a...light reflecting layer, 55b...paint layer, 55c, 55d...opening, 59...light diffusion portion, 60...inner panel, 61...upper portion, 61a, 62a...front portion, 61b...lower surface portion, 61c, 62c...convex side region, 62...lower portion, 62b...upper surface portion, 70...inner housing, 80...outer lens, 90...outer housing, 100, 100A, 100B, 100C, 100D...vehicle lamp

Claims

1. A light source unit having a light source and emitting light from the light source to a front side; a lens panel disposed on a front side of the light source unit, the lens panel having a concave lens portion recessed on a rear side and a convex lens portion protruding on a front side, the lens panel emitting light from the light source unit to the front side from an emission surface of the lens portion; an outer lens that is disposed on a front side of the lens panel and outputs light emitted from the lens panel to the front side; Equipped with A light transmitting pattern having an opening having a shape corresponding to the shape of the lens portion is formed on the front surface of the lens panel. Vehicle lighting fixtures.

2. The light transmitting pattern is formed so that a portion of the lens portion located on the front side transmits more light per unit area than a portion of the lens portion located on the rear side.

2. A vehicle lamp according to claim 1.

3. The light-transmitting pattern has a laminated portion formed of a light-reflecting layer disposed on a front surface of the lens portion and a coating layer laminated on the light-reflecting layer, The opening is formed through the light reflecting layer and the coating layer.

2. A vehicle lamp according to claim 1.

4. The lens panel has a light diffusion portion on the incident surface of the lens portion.

4. A vehicle lamp according to claim 3.

5. The lens panel has a reflecting surface around the lens portion that reflects the light emitted from the emission surface toward the front of the vehicle.

2. A vehicle lamp according to claim 1.

6. the lens panel has a vertical wall portion connecting the concave lens portion and the convex lens portion adjacent to each other, the concave lens portion and the convex lens portion being alternately arranged in at least one of a left-right direction and a top-bottom direction when the lens panel is mounted on a vehicle, The reflecting surface is formed on a surface of the standing wall portion.

6. A vehicle lamp according to claim 5.

7. The upright wall portion disposed on the vehicle inner side of the concave lens portion has a surface formed so as to have a higher light reflectance than other portions.

7. A vehicle lamp according to claim 6.

8. an inner panel that is disposed on a front side of the lens portion and supports the lens panel; The reflecting surface is formed on a surface of the inner panel facing the lens portion.

6. A vehicle lamp according to claim 5.

9. The light-transmitting pattern is formed such that openings for transmitting light extend in one direction, The reflecting surface is disposed at a position on the extension of the opening.

6. A vehicle lamp according to claim 5.

10. The portion of the reflecting surface to which the opening extends is formed to have a higher light reflectance than the other portions.

9. A vehicle lamp according to claim 8.

Images