Vehicle lamp

Abstract

A vehicle lamp includes: a light source unit having a light source and emitting light from the light source toward a front side; a lens panel that is disposed on the front surface side of the light source unit, that has a lens section having a concave lens section recessed toward the back surface side and a convex lens section protruding toward the front surface side, and that emits light from the light source unit from an emission surface of the lens section toward the front surface side; and an outer lens that is disposed on the front side of the lens panel and that emits light emitted from the lens panel toward the front side, in which a light-transmitting pattern having an opening having a shape corresponding to the shape of the lens portion is formed on the front side surface of the lens panel.

Description

TECHNICAL FIELD

[0001] The present application relates to a vehicle lamp. BACKGROUND

[0002] A vehicle lamp having a lens panel that emits light from a light source toward a front side is known (for example, refer to Patent Literature 1).

[0003] PRIOR ART DOCUMENT

[0004] PATENT LITERATURE

[0005] Patent Literature 1: Japanese Patent Application Publication No. 2018-120037 SUMMARY

[0006] PROBLEMS TO BE SOLVED BY THE INVENTION

[0007] In the vehicle lamp described above, it is required to achieve a three-dimensional light emission state having a sense of depth.

[0008] The present application has been achieved in view of the above-described circumstances, and aims to provide a vehicle lamp capable of achieving a three-dimensional light emission state having a sense of depth.

[0009] MEANS FOR SOLVING THE PROBLEMS

[0010] The vehicle lamp of the present application includes a light source unit having a light source that emits light from the light source toward a front side; a lens panel disposed on the front side of the light source unit, having a concave lens portion recessed toward a back side and a convex lens portion protruding toward the front side, and emitting light from the light source unit from an emission surface of the lens portion toward the front side; and an outer lens disposed on the front side of the lens panel, emitting light emitted from the lens panel toward the front side, and a light-transmitting pattern having a shape corresponding to a shape of the lens portion is formed on a surface on the front side of the lens panel.

[0011] EFFECTS OF THE INVENTION

[0012] According to the present application, a vehicle lamp capable of achieving a three-dimensional light emission state having a sense of depth can be provided. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a view showing an example of a rear portion of a vehicle of the present embodiment.

[0014] Figure 2 is a view showing an example of a vehicle lamp of the present embodiment.

[0015] Figure 3 is a view showing an example of a vehicle lamp of the present embodiment.

[0016] Figure 4 is a view showing an example of the vehicle lamp of the present embodiment.

[0017] Figure 5 is a view showing an example of the vehicle lamp of the present embodiment.

[0018] Figure 6 is a view showing an example of the vehicle lamp of the present embodiment.

[0019] Figure 7 is a view showing an example of the vehicle lamp of the present embodiment.

[0020] Figure 8 is a perspective view showing an example of the lens panel of the present embodiment.

[0021] Figure 9 is a view showing an example of the shape of the light reflection pattern provided to the lens panel of the present embodiment.

[0022] Figure 10 is a perspective view showing an example of the outer shape of the lens panel of the present embodiment.

[0023] Figure 11 is a perspective view showing an example of the outer shape of the lens panel of the present embodiment.

[0024] Figure 12 is a perspective view showing an example of the overall structure of the vehicle lamp.

[0025] Figure 13 is a perspective view showing an example of the overall structure of the vehicle lamp.

[0026] Figure 14 is a perspective view showing an example of the overall structure of the vehicle lamp.

[0027] Figure 15 is a perspective view showing an example of the overall structure of the vehicle lamp.

[0028] Figure 16 is a perspective view showing an example of the overall structure of the vehicle lamp. DETAILED DESCRIPTION

[0029] Hereinafter, an embodiment of the vehicle lamp of the present application will be described based on the drawings. Note that the present application is not limited to this embodiment. In addition, the constituent elements in the following embodiment include elements that can be easily substituted by those skilled in the art or substantially the same elements.

[0030] In the present embodiment, each direction of the front side and the back side is, for example, a direction in a state of being mounted on a vehicle (vehicle-mounted state). For example, in a state of being mounted on a front portion (front) of the vehicle, the front is the front direction (front side), and the rear is the back direction (back side). In addition, in a state of being mounted on a rear portion (rear) of the vehicle, the rear is the front direction (front side), and the front is the back direction (back side). In addition, in a state of being mounted on a side portion (side) of the vehicle, the outside of the vehicle is the front direction (front side), and the inside of the vehicle is the back direction (back side).

[0031] Figure 1 is a view illustrating an example of a rear portion of the vehicle 1 of the present embodiment. As shown in Figure 1 the vehicle 1 is provided with a vehicle body 2, a traveling device 3, and a vehicle lamp 100. The vehicle body 2 has a cab in which a driver rides. The vehicle body 2 is supported on the traveling device 3. The traveling device 3 has a wheel on which a tire 4 is mounted, a steering device for changing a traveling direction of the vehicle 1, and a brake device for decelerating or stopping the traveling device 3. The vehicle 1 is provided with a passenger door provided on a side portion of the vehicle body 2 and a rear door 7 provided on a rear portion of the vehicle body 2. The passenger door and the rear door 7 are movably supported on the vehicle body 2 via a hinge mechanism, respectively.

[0032] In the present embodiment, the vehicle lamp 100 is provided on the left side and the right side of the rear portion of the vehicle body 2, respectively. In the present embodiment, the vehicle lamp 100 is provided on the rear portion of the vehicle body 2. Therefore, the rear side in the front-rear direction is described as the front side of the vehicle lamp 100, and the front side in the front-rear direction is described as the back side of the vehicle lamp 100.

[0033] The vehicle lamp 100 includes a functional lamp. As the functional lamp, a tail lamp provided on the rear portion of the vehicle body 2 and lit in conjunction with lighting of a headlamp, a brake lamp provided on the rear portion of the vehicle body 2 and lit in conjunction with an operation of the brake device, a rear turn signal lamp provided on the rear portion of the vehicle body 2 and lit in order to indicate a traveling direction of the vehicle 1 around, and the like can be cited.

[0034] The vehicle lamp 100 is disposed on the vehicle body 2, for example, respectively. In the present embodiment, the vehicle body 2 is a fixed portion. In addition, the rear door 7 is a movable portion. The vehicle lamp 100 provided on the left side of the rear portion of the vehicle body 2 and the vehicle lamp 100 provided on the right side of the rear portion of the vehicle body 2 are symmetrical in the left-right direction and are substantially the same configuration. Hereinafter, the vehicle lamp 100 provided on the right side of the rear portion of the vehicle body 2 will be mainly described, and the description of the vehicle lamp 100 provided on the left side of the rear portion of the vehicle body 2 will be simplified or omitted.

[0035] Figures 2 to 7 is a view illustrating an example of the vehicle lamp 100 of the present embodiment. Figure 2is an exploded perspective view showing an example of the vehicle lamp 100. Figure 3 is a plan view showing a part of the vehicle lamp 100. Figure 4 is a front view showing an example of the vehicle lamp 100. Figure 5 is a view showing a structure along Figure 4 A-A section in Figure 6 is a view showing a structure along Figure 4 B-B section in Figure 7 is a view showing a structure along Figure 4 C-C section in

[0036] The vehicle lamp 100 is provided with 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 the present embodiment, the light source 10, the light guide 20, and the inner lens 30 constitute a light source unit U.

[0037] The light source 10 uses, 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 that is not shown. The circuit board is supported on a heat dissipation member or the like that is not shown.

[0038] The light guide 20 is rod-shaped. The light guide 20 extends, for example, from the inner side of the vehicle to the outer side of the vehicle in a manner that curves toward the back surface side along the inclined shape of the vehicle lamp 100. In the present embodiment, the light guide 20 is disposed on the front surface side with respect to the light source 10.

[0039] As shown in Figure 2 , the light guide 20 has an incident surface 21, a light guide portion 22, and an emission portion 23. The incident surface 21 is disposed at one end in the length direction of the light guide 20, and opposes the light emitting surface 11 of the light source 10. The incident surface 21 is for the light from the light source 10 to be incident. In the light guide 20, the incident surface 21 is disposed, for example, at the end portion on the outer side of the vehicle and the back surface side. With this shape, the light from the light source 10 can be properly guided inside the vehicle lamp 100 having an inclined shape.

[0040] The light guide portion 22 is a portion that extends from the incident surface 21 toward the front surface side. The light guide portion 22 guides the light that is incident from the incident surface 21.

[0041] The emission portion 23 extends from the light guide portion 22 toward the inside of the vehicle. The emission portion 23 extends to the other end of the light guide 20 along its length. The emission portion 23 guides the light from the light source 10 and emits the light 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 emission portion 23 emits light downwards from the lower part of the side surface 23a. A prism portion 23b is provided on the upper part of the side surface 23a opposite to the inner lens 30. The prism portion 23b reflects light incident from the incident surface 21 and reflected by the inner surface of the side surface 23a toward the emission direction, i.e., the side below where the inner lens 30 is disposed. The light reflected by the prism portion 23b is emitted downwards from the side surface 23a of the light guide 20 toward the inner lens 30.

[0042] The inner lens 30 guides the light emitted from the light guide 20 and directs the light towards at least the frontal direction in the vehicle-mounted state. The inner lens 30 is, for example, positioned below the light guide 20. It is configured to emit light from a strip-shaped area along the left-right direction towards the frontal direction. The inner lens 30 can be configured such that rod-shaped portions 31 extending in the vertical direction are spaced apart in the left-right direction, and adjacent rod-shaped portions 31 are connected to each other by plate-shaped portions 32. The upper ends of the rod-shaped portions 31 and plate-shaped portions 32 of the inner lens 30 respectively become incident surfaces 31a and 32a. The incident surfaces 31a and 32a are spaced apart relative to the light guide 20 in the vertical direction. Light emitted from the light guide 20 enters the rod-shaped portions 31 and plate-shaped portions 32 from the incident surfaces 31a and 32a. Prism portions 31p and 32p are formed on the back side of the rod-shaped portions 31 and 32. Prism portions 31p and 32p reflect light traveling inside the inner lens 30 towards the front direction via their inner surfaces. Exit surfaces 31b and 32b are located on the front sides of the rod-shaped portion 31 and the plate-shaped portion 32. Exit surfaces 31b and 32b emit light reflected from the inner surfaces of the prism portions 31p and 32p towards the front side (rear of the vehicle). It should be noted that the structure of the inner lens 30 is not limited to the structure described above.

[0043] The reflector 40 is positioned above the light guide 20. The reflector 40 has a reflective surface 41 positioned to project forward of the inner lens 30 (see reference). Figure 5 , Figure 6 (etc.). The reflecting surface 41 is arranged along the horizontal plane and faces downward. The reflector 40 reflects light from the inner lens 30 upward.

[0044] The lens panel 50 is disposed on the front side of the inner lens 30. Figure 8 This is a perspective view showing an example of the lens panel 50 of this embodiment. Figure 9 This is a diagram showing an example of the shape of the light reflection pattern provided on the lens panel 50 of this embodiment. Figure 10 andFigure 11 is a perspective view showing an example of an outer shape of the lens panel 50 of the present embodiment. Figure 10 is a view as viewed from the front surface side, Figure 11 is a view as viewed from the back surface side. Note that, Figure 10 , Figure 11 shows a state in which the light-transmissive pattern 55 described later is not formed.

[0045] 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-transmissive pattern 55.

[0046] The concave lens portion 51 has a shape that is recessed toward the back surface side. The concave lens portion 51 is formed in a plate shape using a material that allows light to be transmitted, and is curved in a manner that is recessed toward the back surface side from the upper end and the lower end to the central portion in the up-down direction. The concave lens portion 51 has an incident surface 51a and an emission surface 51b. The incident surface 51a is disposed on the back surface side, and light emitted from the inner lens 30 is incident thereon. The emission surface 51b is disposed on the front surface side, and light incident from the incident surface 51a is emitted therefrom.

[0047] The convex lens portion 52 has a shape that is protruded toward the front surface side. The convex lens portion 52 is formed in a plate shape using a material that allows light to be transmitted, and is curved in a manner that is protruded toward the front surface side from the upper end and the lower end to the central portion in the up-down direction. The convex lens portion 52 has an incident surface 52a and an emission surface 52b. The incident surface 52a is disposed on the back surface side, and light emitted from the inner lens 30 is incident thereon. The emission surface 52b is disposed on the front surface side, and light incident from the incident surface 52a is emitted therefrom.

[0048] The standing wall portion 53 is formed in a manner that connects the adjacent concave lens portion 51 and convex lens portion 52. The standing wall portion 53 is formed in a state that intersects the left-right direction and extends along the front-rear direction. As shown in Figure 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 side. The standing wall portion 53 is formed with a light diffusion portion such as a texture on a surface 53a on the back surface side.

[0049] The light-transmissive pattern 55 is formed on a surface on the front surface side of the lens panel 50. In Figure 8 , a view in which the cross-sectional structure of the light-transmissive pattern 55 is enlarged is shown. The light-transmissive pattern 55 has a light reflection layer 55a, a coating layer 55b, and opening portions 55c and 55d.

[0050] The light reflection layer 55a is formed on a transparent member 50R (refer to Figure 10entire surface of the front side of the lens sheet 50, that is, the entire surface of the light exit surface 51b of the concave lens portion 51, the light exit surface 52b of the convex lens portion 52, the surface 53b of the front side of the standing wall portion 53, the front surface portion 61a and the lower surface portion 61b of the upper side portion 61 of the inner face plate 60, and the front surface portion 62a and the upper surface portion 62b of the lower side portion 62. The light reflection layer 55a is formed of a material capable of reflecting light, such as a metal material, for example, aluminum.

[0051] The coating layer 55b is formed on the entire surface of the light reflection layer 55a. The coating layer 55b is formed of a material of a predetermined color, such as a black resin. The coating layer 55b can be formed in a state in which the surface has gloss, for example.

[0052] The opening portion 55c is formed in the light reflection layer 55a and the coating layer 55b disposed on the light exit surface 51b of the concave lens portion 51. The opening portion 55d is formed in the light reflection layer 55a and the coating layer 55b disposed on the light exit surface 52b of the convex lens portion 52. The opening portions 55c and 55d are formed through the light reflection layer 55a and the coating layer 55b. The opening portions 55c and 55d are portions in which the light exit surfaces 51b and 52b are exposed from the light reflection layer 55a and the coating layer 55b. The opening portions 55c and 55d are portions through which light emitted from the light exit surfaces 51b and 52b passes.

[0053] The opening portions 55c and 55d are formed, for example, by performing a so-called laser etching process in which laser light is irradiated from the coating layer 55b side on the portion in which the light reflection layer 55a and the coating layer 55b are laminated. In this case, the exposed portions of the light exit surfaces 51b and 52b exposed in the opening portions 55c and 55d can also be formed in a state in which the other portions of the light exit surfaces 51b and 52b are rough or recessed toward the back surface side, for example, in the process of performing laser etching.

[0054] The opening portion 55c is formed in a strip shape extending in the left-right direction. The opening portion 55c is formed so that the size (width) in the up-down direction is constant in the left-right direction. The opening portion 55c is provided in a plurality in the up-down direction. The emission surface 51b of the concave lens portion 51 is formed so as to be recessed toward the back surface side from the upper end and the lower end in the up-down direction to the central portion. In correspondence thereto, the opening portion 55c is formed so that the opening area per unit area becomes larger from the central portion in the up-down direction to the both end sides in the up-down direction. That is, the opening portion 55c is formed so as to have a larger opening area on the upper side and the lower side in the up-down direction than the opening portion 55c formed in the central portion in the up-down direction. Thus, the light-transmitting pattern 55 is formed so that the amount of light transmission per unit area is larger in the both end portions in the up-down direction on the front surface side than in the central portion in the up-down direction on the back surface side in the emission surface 51b of the concave lens portion 51. Therefore, when the light emission state is observed from the front surface side, it appears that the inside on the near side is located stereoscopically from the both end portions in the up-down direction to the central portion.

[0055] The opening portion 55d is formed so as to extend in the up-down direction. The opening portion 55d is provided in a plurality in the left-right direction. In this way, in the light-transmitting pattern 55 provided to the concave lens portion 51 and the light-transmitting pattern 55 provided to the convex lens portion 52, the opening portion 55c and the opening portion 55d are provided in a state where the directions thereof are different, that is, are shifted by 90°.

[0056] The emission surface 52b of the convex lens portion 52 is formed so as to protrude toward the front surface side from the upper end and the lower end in the up-down direction to the central portion. In correspondence thereto, the opening portion 55d is formed so that the opening area per unit area becomes larger from the upper end and the lower end in the up-down direction to the central portion in the up-down direction. That is, the opening portion 55d is formed so as to have a smaller size (width) in the left-right direction from the central portion in the up-down direction to the upper end and the lower end in the up-down direction. Therefore, the opening portion 55d is formed so as to have a larger opening area from the upper end and the lower end in the up-down direction to the central portion. Thus, the light-transmitting pattern 55 is formed so that the amount of light transmission per unit area is larger in the central portion in the up-down direction on the front surface side than in the upper end side and the lower end side in the up-down direction on the back surface side in the emission surface 52b of the convex lens portion 52. Therefore, when the light emission state is observed from the front surface side, it appears that the inside on the near side is located stereoscopically from the central portion in the up-down direction to the both end portions in the up-down direction.

[0057] Figure 9 The shape illustrated in (A) is a shape in which each opening portion extends in one direction, and is a shape in which the size in the width direction becomes larger from both ends in the length direction to the center. In other words, it is a shape in which the size in the width direction gradually becomes smaller from the center in the length direction to both ends. This shape is, for example, applicable to the opening portion 55d of the light-transmitting pattern 55 described above.

[0058] Figure 9(B) shows a shape in which each opening extends in one direction, and the dimensions in the width direction are uniform from both ends in the length direction to the center. This shape is, for example, applicable to the opening 55c of the light-transmitting pattern 55 described above.

[0059] Figure 9 (C) shows a shape in which circular openings are arranged in a staggered pattern with their radii offset in the left-right direction. This shape can also be applied to at least one of the openings 55c and 55d of the aforementioned light-transmitting pattern 55. Figure 9 (C) shows the shape of the opening.

[0060] Furthermore, in the vertical wall portion 53, the surface of the coating layer 55b becomes the surface 53c of the vertical wall portion 53. The surface 53c of the vertical wall portion 53 becomes a reflective surface 58 for light emitted from the emission surface 51b of the concave lens portion 51 and passing through the opening 55c, which is reflected towards the front of the vehicle. When the light passing through the opening 55c is reflected by the surface 53c (reflective surface 58) of the vertical wall portion 53, it is visually identifiable from the front side as an image of the opening 55c is reflected on the surface 53c. It should be noted that the light-transmitting pattern 55 may also form an opening in the portion disposed in the vertical wall portion 53.

[0061] The surface 53c of the vertical wall portion 53 is positioned on the extension line of the opening portion 55c. In this structure, when light passing through the opening portion 55c is reflected by the surface 53c of the vertical wall portion 53, the image of the opening portion 55c is projected onto the surface 53c of the vertical wall portion 53, making it visually apparent that the image of the opening portion 55c is connected to the surface 53c. Furthermore, the surface 53c of the vertical wall portion 53 located on the inner side of the vehicle, which is located at both ends of the concave lens portion 51 in the left-right direction, can be formed to have a higher light reflectivity than other portions. In this structure, when viewed from the outside of the vehicle, the image of the opening portion 55c projected onto the surface 53c of the vertical wall portion 53 on the inner side of the vehicle can be more clearly visually identified.

[0062] Additionally, in the lens panel 50, in the transparent component 50R constituting the lens panel 50 (refer to...) Figure 11 The entire back side surface of the 51 has a light-diffusing portion 59. For example, a texture can be formed as the light-diffusing portion 59. For example, a light-diffusing component can also be provided as the light-diffusing portion 59. The light-diffusing portion 59 can also be selectively formed on the incident surface 51a of the concave lens portion 51, the incident surface 52a of the convex lens portion 52, the surface 53a of the back side of the vertical wall portion 53, etc.

[0063] like Figure 5 and Figure 6As shown, 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 side portion 61 and a lower side portion 62.

[0064] The upper side portion 61 supports the upper end portions of the concave lens portion 51 and the convex lens portion 52. The upper side portion 61 has a front surface portion 61a and a lower surface portion 61b. The front surface portion 61a is disposed on the front surface side of the upper side portion 61. The lower surface portion 61b is disposed on the lower end portion of the upper side portion 61. The lower surface portion 61b is disposed in a manner that protrudes toward the front from the upper end of the emission surface 51b, 52b. The lower surface portion 61b is formed so as to be inclined upward toward the front surface side from the upper end of the emission surface 51b, 52b.

[0065] The lower side portion 62 supports the lower end portions of the concave lens portion 51 and the convex lens portion 52. The lower side portion 62 has a front surface portion 62a and an upper surface portion 62b. The front surface portion 62a is disposed on the front surface side of the lower side portion 62. The upper surface portion 62b is disposed on the upper end portion of the lower side portion 62. The upper surface portion 62b is disposed in a manner that protrudes toward the front from the lower end of the emission surface 51b, 52b. The upper surface portion 62b is formed so as to be inclined downward toward the front surface side from the lower end of the emission surface 51b, 52b.

[0066] In addition, in the upper side portion 61 of the inner panel 60, the lower surface portion 61b becomes a reflection surface 58 that reflects light emitted from the emission surface 51b, 52b and passed through the opening portions 55c, 55d toward the front of the vehicle. Similarly, in the lower side portion 62 of the inner panel 60, the upper surface portion 62b becomes a reflection surface 58 that reflects light emitted from the emission surface 51b, 52b and passed through the opening portions 55c, 55d toward the front of the vehicle.

[0067] In a case where the light passed through the opening portions 55c, 55d is reflected by the lower surface portion 61b and the upper surface portion 62b, the state in which the images of the opening portions 55c, 55d are projected on the lower surface portion 61b and the upper surface portion 62b is visually recognized from the front surface side.

[0068] The convex side regions 61c, 62c, which are disposed on the upper end portion and the lower end portion of the convex lens portion 52, among the lower surface portion 61b and the upper surface portion 62b, are located on the direction in which the opening portion 55d of the light transmission pattern 55 formed in the convex lens portion 52 extends, that is, the extension line of the opening portion 55d. In this case, the image of the opening portion 55d can be visually recognized as if it is connected to the convex side regions 61c, 62c when viewed from the front surface side. Furthermore, the convex side regions 61c, 62c can be formed so as to have a higher light reflectance than the other portions of the lower surface portion 61b and the upper surface portion 62b. In this structure, the image of the opening portion 55d projected on the convex side regions 61c, 62c can be more clearly visually recognized.

[0069] 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.

[0070] The outer lens 80 is disposed on the front side of the lens panel 50, that is, the rear side. The outer lens 80 emits 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 curved toward the back side from the inside of the vehicle to the outside of the vehicle. The outer lens 80 is formed of, for example, a transparent or same-color resin material as the lighting color.

[0071] The outer housing 90 forms a lamp chamber between the outer lens 80. The lamp chamber houses or supports 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 described above.

[0072] An example of a case where the vehicle lamp 100 configured as described above is lit will be described. In a case where a predetermined operation of lighting a tail lamp is performed by a driver, the vehicle lamp 100 acquires an operation signal from the operation device. A control circuit provided to a substrate or the like of the light source 10 performs light emission control of the light source 10 in accordance with the acquired signal.

[0073] By the light emission control, light is emitted from the light emission surface 11 of the light source 10. The light is incident on the light guide portion 22 from the incident surface 21 of the light guide 20. The light incident on the light guide portion 22 is guided by the light guide portion 22 to be incident on the emission portion 23, and is internally reflected by the prism portion 23b to be emitted downward from the side surface 23a.

[0074] The light emitted downward from the side surface 23a of the emission portion 23 is incident on the inner lens 30 from the end surfaces 31a and 32a. The light incident on the inner lens 30 is internally reflected by the prism portions 31p and 32p and the like to be emitted toward the front side of the inner lens 30. The light emitted toward the front side of the inner lens 30 reaches the lens panel 50 to be incident from the incident surface 51a of the concave lens portion 51 and the incident surface 52a of the convex lens portion 52.

[0075] As shown in Figs. 6 and 7, a part of the light incident on the incident surface 51a (hereinafter, referred to as light L1) reaches the emission surface 51b to be emitted toward the front side through the opening portion 55c. The light L1 that has passed through the opening portion 55c is emitted toward the rear of the vehicle through the outer lens 80. Figure 7 Figure 8 As shown in Figs. 6 and 7, a part of the light incident on the incident surface 52b (hereinafter, referred to as light L2) reaches the emission surface 52b to be emitted toward the front side through the opening portion 55d. The light L2 that has passed through the opening portion 55d is emitted toward the rear of the vehicle through the outer lens 80.

[0076] In addition, as shown in Figs. 6 and 7, a part of the light incident on the incident surface 52b (hereinafter, referred to as light L2) reaches the emission surface 52b to be emitted toward the front side through the opening portion 55d. The light L2 that has passed through the opening portion 55d is emitted toward the rear of the vehicle through the outer lens 80. Figure 7 Figure 8 In addition, as shown in Figs. 6 and 7, a part of the light incident on the incident surface 52b (hereinafter, referred to as light L2) reaches the emission surface 52b to be emitted toward the front side through the opening portion 55d. The light L2 that has passed through the opening portion 55d is emitted toward the rear of the vehicle through the outer lens 80.​​

[0077] In addition, as shown in Figure 8 part of the light incident to the incident surface 51 or the incident surface 52b (hereinafter, referred to as light L3) reaches the exit surface 51b or the exit surface 52b, and is reflected toward the back surface side by the light reflecting layer 55a. The reflected light L3 is reflected by each portion and travels toward the front surface side again, and thereby is reused.

[0078] In addition, as shown in Figure 7 and Figure 8 part of the light incident to the incident surface 51a (hereinafter, referred to as light L4) reaches the exit surface 51b, and is emitted toward the front surface side through the opening portion 55c. The light L4 that has passed through the opening portion 55c is reflected toward the front surface side by the surface 53b of the standing wall portion 53 and reaches the outer lens 80. The light L4 passes through the outer lens 80 and is emitted toward the rear of the vehicle.

[0079] In addition, as shown in Figure 6 and Figure 8 part of the light incident to the incident surface 52a (hereinafter, referred to as light L5) reaches the exit surface 52b, and is emitted toward the front surface side through the opening portion 55d. The light L5 that has passed through the opening portion 55d is reflected toward the front surface side by the lower surface portion 61b or the upper surface portion 62b of the inner panel 60 and reaches the outer lens 80. The light L5 passes through the outer lens 80 and is emitted toward the rear of the vehicle.

[0080] As described above, the vehicle lamp 100 of the present embodiment is provided with: the light source unit U having the light source 10 that emits light from the light source 10 toward the front surface side; the lens panel 50 that is disposed on the front surface side of the light source unit U, has the lens portions of the concave lens portion 51 recessed toward the back surface side and the convex lens portion 52 protruding toward the front surface side, and emits light from the light source unit U toward the front surface side from the exit surfaces 51b, 52b of the lens portions 51, 52; and the outer lens 80 that is disposed on the front surface side of the lens panel 50, emits light emitted from the lens panel 50 toward the front surface side, and has the light-transmitting pattern 55 formed on the surface on the front surface side, the light-transmitting pattern 55 having the opening portions 55c, 55d having shapes corresponding to the shapes of the lens portions 51, 52.

[0081] According to this structure, the lens panel 50 has the lens portions of the concave lens portion 51 and the convex lens portion 52, and the light-transmitting pattern 55 having the opening portions 55c, 55d having shapes corresponding to the shapes of the lens portions 51, 52 is formed on the surface on the front surface side, and thus a three-dimensional light emission state having a sense of depth can be achieved when viewed from the front surface side.

[0082] In the vehicle lamp 100 of the present embodiment, the light-transmitting pattern 55 is formed so that the amount of light transmitted per unit area is larger in the portion of the lens portions 51, 52 located on the front surface side than in the portion located on the back surface side.

[0083] According to this structure, in the case of viewing from the front side, it is possible to become a light emission state in which the amount of light transmission decreases from the front side (the front side) to the back side (the inside), and thus it is possible to achieve a stereoscopic light emission state with a sense of depth.

[0084] In the vehicle lamp 100 of this embodiment, the light-transmissive pattern 55 has a laminated portion formed of a light-reflecting layer 55a disposed on the surface of the front side of the lens portions 51, 52 and a coating layer 55b laminated on the light-reflecting layer 55a, and the opening portions 55c, 55d are formed through the light-reflecting layer 55a and the coating layer 55b.

[0085] According to this structure, since the light-reflecting layer 55a is formed on the surface of the front side of the lens portions 51, 52, it is possible to return light that does not pass through the opening portions 55c, 55d to the back side and reuse it. In addition, since the coating layer 55b is laminated on the light-reflecting layer 55a, it is possible to hide the light-reflecting layer 55a in the case of viewing from the front side.

[0086] In the vehicle lamp 100 of this embodiment, the lens panel 50 has a light-diffusing portion 59 on the incident surface of the lens portions 51, 52.

[0087] According to this structure, in the lens panel 50, the light-diffusing portion 59 is provided on the incident surface of the lens portions, and thus it is possible to diffuse light incident to the lens panel 50 and emit it from the emission surfaces 51b, 52b and the opening portions 55c, 55d. Thereby, it is possible to emit uniform light toward the outer lens 80.

[0088] In the vehicle lamp 100 of this embodiment, the lens panel 50 has a reflecting surface 58 that reflects light emitted from the emission surfaces 51b, 52b toward the front of the vehicle around the lens portions 51, 52.

[0089] According to this structure, since the reflecting surface 58 is provided around the lens portions 51, 52, in the light emission state, it is possible to make the observer visually recognize light reflected by the reflecting surface 58 in the case of viewing from the front side.

[0090] In the vehicle lamp 100 of this embodiment, the concave lens portions 51 and the convex lens portions 52 of the lens panel 50 are alternately arranged in at least one of the left-right direction and the up-down direction in the vehicle-mounted state, have a standing wall portion 53 that connects adjacent concave lens portions 51 and convex lens portions 52, and the reflecting surface 58 is formed on the surface 53b of the standing wall portion 53.

[0091] According to this structure, in the light emission state, it is possible to make the observer visually recognize light reflected by the surface 53b of the standing wall portion 53.

[0092] In the vehicle lamp 100 of the present embodiment, the surface 53b of the standing wall portion 53 on the inner side of the vehicle in the concave lens portion 51 is formed so as to have a higher light reflectance than other portions.

[0093] According to this structure, in the light emitting state, the observer observing from the outside of the vehicle can more clearly visually recognize the image of the opening portion 55c appearing on the surface 53c of the standing wall portion 53.

[0094] In the vehicle lamp 100 of the present embodiment, an inner panel 60 is further provided on the front side of the lens portions 51, 52 and supports the lens panel 50, and the reflecting surface 58 is formed on the lens portions 51, 52 side of the inner panel 60 (lower surface portion 61b, upper surface portion 62b).

[0095] According to this structure, the observer can visually recognize the light reflected by the lens portions 51, 52 side of the inner panel 60 (lower surface portion 61b, upper surface portion 62b).

[0096] In the vehicle lamp 100 of the present embodiment, the light-transmitting pattern 55 is formed so that the opening portions 55c, 55d through which light is transmitted extend in one direction, and the reflecting surface 58 is disposed at a position on the extension line of the opening portions 55c, 55d.

[0097] According to this structure, in the light emitting state, in the case where the light passing through the opening portions 55c, 55d is reflected by the reflecting surface 58, by the image of the opening portions 55c, 55d appearing on the reflecting surface 58, the image of the opening portions 55c, 55d can be visually recognized as if it is connected to the reflecting surface 58.

[0098] In the vehicle lamp 100 of the present embodiment, the portion of the reflecting surface 58 located at the front end of the extension of the opening portions 55c, 55d is formed so as to have a higher light reflectance than other portions.

[0099] According to this structure, in the structure, in the portion of the reflecting surface 58 located at the front end of the extension of the opening portions 55c, 55d, the image of the opening portions 55c, 55d appearing on the reflecting surface 58 can be more clearly visually recognized.

[0100] Figures 12 to 16 FIG. 1 is a perspective view showing an example of the overall structure of a vehicle lamp. Figures 12 to 16 FIG. 2 shows a state in which the vehicle lamp is observed from the front side.

[0101] Figure 12The vehicle lamp 100 illustrated has the structure as explained above. That is, the vehicle lamp 100 is configured to have the light-transmitting pattern 55 in which the concave lens portions 51 and the convex lens portions 52 are alternately arranged in the left-right direction, the opening portion 55c is provided at the emission surface 51b of the concave lens portion 51, and the opening portion 55d is provided at the emission surface 52b of the convex lens portion 52.

[0102] Figure 13 The vehicle lamp 100A illustrated is a structure in which the concave lens portions 51 and the convex lens portions 52 are alternately arranged in the up-down direction in addition to the left-right direction. In this way, the arrangement of the concave lens portions 51 and the convex lens portions 52 is not limited to the structure explained above.

[0103] Figure 14 The vehicle lamp 100B illustrated is a structure in which the lens panel 50B has portions (convex lens portions) protruding to the front surface side of the lens panel 50B and portions (concave lens portions) recessed to the back surface side, which are formed by the combination of the triangular emission surfaces 54B. In this way, it can also be a structure in which one concave lens portion and one convex lens portion are formed by a plurality of emission surfaces. The shape of the emission surface is not limited to a triangle, and can be other kinds of polygonal shapes such as a quadrangle.

[0104] Figure 15 The vehicle lamp 100C illustrated is a structure in which the concave lens portion 51C is formed in a groove shape with respect to the convex lens portion 52C. In the vehicle lamp 100C, light is emitted from the entire emission surface of the convex lens portion 52C, and the entire emission surface of the concave lens portion 51C is shielded from light. In addition, in the convex lens portion 52C arranged on the lower side in the up-down direction, the structure is such that light is emitted also from the lower surface arranged below the emission surface.

[0105] As with the vehicle lamp 100C illustrated, Figure 15 As with the vehicle lamp 100C illustrated, Figure 16 The vehicle lamp 100D illustrated is also a structure in which the concave lens portion 51D is formed in a groove shape with respect to the convex lens portion 52D. In the vehicle lamp 100D, the area of the emission surface of each convex lens portion 52D is smaller than that of the vehicle lamp 100C. In this structure, the vehicle lamp 100D is configured to emit light from the entire convex lens portion 52D and to shield the entire emission surface of the concave lens portion 51C from light.

[0106] As with the vehicle lamps 100, 100A, 100B, 100C, and 100D explained above, by combining the concave lens portions and the convex lens portions and providing the light-transmitting pattern having the opening portions corresponding to the shapes of the lens portions, a three-dimensional light emission state having a sense of depth can be achieved.

[0107] The technical scope of the present application is not limited to the above-described embodiments, and can be appropriately changed within the scope of the gist of the present application. For example, in the above-described embodiments, as the light source unit U, a structure having the light source 10, the light guide 20, and the inner lens 30 is exemplified, but is not limited to this structure. For example, it can be a structure in which at least one of the light guide 20 and the inner lens 30 is not provided.

[0108] Explanation of symbols

[0109] L1, L2, L3, L4, L5 — light, U — light source unit, 1 — vehicle, 2 — vehicle body, 3 — running device, 4 — tire, 7 — rear door, 10 — light source, 11 — light emitting surface, 20 — light guide, 21, 31a, 32a, 51a, 52a — incident surface, 22 — light guide portion, 23 — emission portion, 23a — side surface, 23b, 31p, 32p — prism portion, 30 — inner lens, 31 — rod-shaped portion, 31b, 32b, 51b, 52b, 54B — emission surface, 32 — plate-shaped portion, 40 — reflector, 41, 58 — reflecting surface, 50, 50B — lens panel, 50R — transparent member, 51, 51C, 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 — coating layer, 55c, 55d — opening portion, 59 — light diffusion portion, 60 — inner panel, 61 — upper side portion, 61a, 62a — front surface portion, 61b — lower surface portion, 61c, 62c — convex side region, 62 — lower side portion, 62b — upper surface portion, 70 — inner housing, 80 — outer lens, 90 — outer housing, 100, 100A, 100B, 100C, 100D — vehicle lamp.

Claims

1. A vehicle lamp characterized by comprising: Possessing: a light source unit having a light source, which emits light from the light source toward the front surface side; a lens panel disposed on the front surface side of the light source unit, which has a concave lens portion recessed toward the back surface side and a convex lens portion protruding toward the front surface side, and which emits light from the light source unit from the emission surface of the lens portion toward the front surface side; and an outer lens disposed on the front surface side of the lens panel, which emits light emitted from the lens panel toward the front surface side, a light-transmitting pattern is formed on the surface on the front surface side of the lens panel, and the light-transmitting pattern has an opening portion having a shape corresponding to the shape of the lens portion.

2. The vehicle lamp according to claim 1, wherein the light-transmitting pattern is formed so that the amount of light transmitted per unit area is greater in a portion of the lens portion located on the front surface side than in a portion located on the back surface side.

3. The vehicle lamp according to claim 1, wherein the light-transmitting pattern has a laminated portion formed of a light-reflecting layer disposed on the surface on the front surface side of the lens portion and a coating layer laminated to the light-reflecting layer, the opening portion is formed so as to pass through the light-reflecting layer and the coating layer.

4. The vehicle lamp according to claim 3, wherein the lens panel has a light-diffusing portion on the incident surface of the lens portion.

5. The vehicle lamp according to claim 1, wherein the lens panel has a reflecting surface on the periphery of the lens portion, which reflects light emitted from the emission surface toward the front of the vehicle.

6. The vehicle lamp according to claim 5, wherein the concave lens portion and the convex lens portion of the lens panel are alternately disposed in at least one of the left-right direction and the up-down direction in a state in which the lens panel is mounted to a vehicle, and the lens panel has a standing wall portion connecting adjacent concave lens portions and convex lens portions, the reflecting surface is formed on the surface of the standing wall portion.

7. The vehicle lamp according to claim 6, wherein the surface of the standing wall portion disposed on the inner side of the vehicle with respect to the concave lens portion is formed so as to have a higher light reflectance than other portions.

8. The vehicle lamp according to claim 5, further comprising an inner panel disposed on the front surface side of the lens portion and supporting the lens panel, the reflecting surface is formed on the lens portion side of the inner panel.

9. The vehicle lamp according to claim 5, wherein the light-transmitting pattern is formed so that the opening portion through which light is transmitted extends in one direction, the reflecting surface is disposed at a position on the extension line of the opening portion.

10. The vehicle lamp according to claim 8, wherein a portion of the reflecting surface located at the front end of the extension of the opening portion is formed so as to have a higher light reflectance than other portions. ​ ​

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