Vehicle lamp

Abstract

To achieve three dimensional light emission with a sense of depth.SOLUTION: A vehicle lamp includes an excitation light source configured to emit excitation light in a front direction, an optical member disposed on a front side of the excitation light source and configured to emit the excitation light emitted from the excitation light source at a small emission angle, at least one pattern layer in which a plurality of light emitting layers configured to generate generation light by being irradiated with the excitation light emitted from the optical member are disposed, a plurality of pattern surfaces configured to form a light emitting pattern of the light emitting layer and provided in a front and rear direction, and an emission side lens disposed on a front side of the plurality of pattern surfaces and configured to transmit and emit the generation light in the front direction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

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

[0002] A known vehicle lamp has hemispherical control steps formed on the light-emitting elements, each with a different curvature, so that the light-emitting elements arranged two-dimensionally in the vertical and horizontal directions appear three-dimensionally illuminated with a sense of depth, with the light-emitting elements on both sides in the vertical direction brighter and the central light-emitting element darker (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2024-74472 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, there has been a demand for vehicle lighting fixtures to achieve three-dimensional light emission with a sense of depth. With the configuration described in Patent Document 1, it is difficult to fully achieve three-dimensional light emission with 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 that can achieve three-dimensional light emission with a sense of depth. [Means for solving the problem]

[0006] The vehicle lamp according to the present invention includes an excitation light source that emits excitation light in a forward direction, an optical element that is arranged in front of the excitation light source and emits the excitation light emitted from the excitation light source at a small emission angle, at least one pattern layer having a plurality of light-emitting layers that generate generated light when irradiated with the excitation light emitted from the optical element, a plurality of pattern surfaces that are provided in the front-to-back direction and that are capable of forming the light-emitting patterns of the light-emitting layers, and an emission-side lens that is arranged in front of the plurality of pattern surfaces and is capable of transmitting and emitting the generated light in a forward direction. [Effects of the Invention]

[0007] According to the present invention, it is possible to achieve three-dimensional light emission with a sense of depth. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram illustrating an example of a rear part of a vehicle according to an embodiment. [Figure 2] FIG. 2 is a cross-sectional view showing an example of a vehicle lamp according to the embodiment. [Figure 3] FIG. 3 is a diagram illustrating an example of an optical conversion unit according to the embodiment. [Figure 4] FIG. 4 is a diagram illustrating an example of the operation of the vehicle lamp according to the embodiment. [Figure 5] FIG. 5 is a diagram showing an example of a vehicle lamp in a turned-on state as viewed from the front. [Figure 6] FIG. 6 is a diagram showing the configuration of a vehicle lamp according to a modified example. [Figure 7] FIG. 7 is a diagram showing the configuration of a vehicle lamp according to a modified example. [Figure 8] FIG. 8 is a diagram showing the configuration of a vehicle lamp according to a modified example. [Figure 9] FIG. 9 is a diagram showing the configuration of a vehicle lamp according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of a vehicle lamp according to the present disclosure will be described with reference to the drawings. Note that the present invention is not limited to these embodiments. Furthermore, the components in the following embodiments include those that are easily replaceable by those 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 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 where 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 direction of travel of the vehicle 1, and a brake device for slowing down or stopping the running device 3. The vehicle 1 includes a boarding / alighting door provided on the side of the vehicle body 2, and a tailgate 7 provided on the rear of the vehicle body 2. The boarding / alighting door and the tailgate 7 are each movably supported on 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 front-to-rear direction will be referred to as the front side of the vehicular lamp 100, and the front side in the front-to-rear direction will be referred to as the back side of the vehicular lamp 100.

[0013] The vehicle lighting device 100 includes functional lamps, such as tail lamps that are provided at the rear of the vehicle body 2 and light up in conjunction with the lighting of the head lamps, stop lamps that are provided at the rear of the vehicle body 2 and light up in conjunction with the operation of the brake device, and rear turn signal lamps that are provided at the rear of the vehicle body 2 and light up to indicate the direction in which the vehicle 1 is traveling to those around it.

[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 identical in structure. The following mainly describes the vehicle lamp 100 provided on the left rear part of the vehicle body 2, and the description of the vehicle lamp 100 provided on the right rear part of the vehicle body 2 will be simplified or omitted.

[0015] FIG. 2 is a diagram showing an example of a vehicle lamp 100 according to this embodiment. FIG. 2 shows a cross-sectional view as seen from above. The vehicle lamp 100 shown in FIG. 2 is, for example, a signal lamp such as a tail lamp. In this embodiment, the front direction is the rear direction (rear) and the back direction is the front direction (forward). Furthermore, the left direction (left side) is the outside of the vehicle and the right direction (right side) is the inside of the vehicle. As shown in FIG. 2, the vehicle lamp 100 includes an excitation light source 10, an optical member 20, a light conversion unit 30, an outer lens 40, and a housing 50.

[0016] The excitation light source 10 has a light source such as an LED or an organic EL. The excitation light source 10 emits, for example, blue light as excitation light in the front direction. Note that the excitation light source 10 is not limited to a light source that emits blue light, and a light source that can irradiate light (violet light, ultraviolet light, etc.) with a shorter wavelength than the wavelength of light generated in the light conversion unit 20 described below can be used. In this embodiment, multiple excitation light sources 10 (for example, three) are arranged in the left-right direction. The multiple excitation light sources 10 are mounted on a substrate 11. The substrate 11 is fixed to a housing 50.

[0017] The optical element 20 is disposed on the front side of the excitation light source 10. The optical element 20 collects light emitted from the excitation light source 10 and emits it toward the front side. In this embodiment, an optical element 20 is provided for each excitation light source 10. The optical element 20 has an incident surface 21 and an exit surface 22. The incident surface 21 faces the excitation light source 10. The light emitted from the excitation light source 10 is incident on the incident surface 21. The exit surface 22 emits the light incident from the incident surface 21. The optical element 20 makes the exit angle θ2 of the excitation light emitted from the exit surface 22 smaller than the exit angle θ1 of the excitation light emitted from the excitation light source 10. In this embodiment, the optical element 20 can make the exit angle smaller so that the exit angle θ2 is approximately half the exit angle θ1. In this embodiment, for example, the exit angle θ1 is approximately 80° and the exit angle θ2 is approximately 40°.

[0018] The light conversion unit 30 converts the excitation light emitted from the optical element 20 to generate generated light, and then emits the generated light. The light conversion unit 30 has a first lens 31 and a second lens 32. FIG. 3 is a diagram showing an example of the light conversion unit 30. FIG. 3(A) shows the first lens 31 as viewed from the front side, FIG. 3(B) shows the first lens 31 as viewed from the front side, and FIG. 3(C) shows the first lens 31 and the second lens 32 as viewed from the front side in a state where they are overlapped.

[0019] The first lens 31 and the second lens 32 are plate- or sheet-shaped and transmit the excitation light and the generated light. The first lens 31 is disposed on the front side of the optical member 20. The second lens 32 is disposed on the front side of the first lens 31. The distance between the first lens 31 and the second lens 32 is set to, for example, about 5 mm to 50 mm.

[0020] The first lens 31 and the second lens 32 are, for example, rectangular plates, and can transmit light emitted from a light-emitting layer 35 (described later). Examples of such first lens 31 and second lens 32 include light-transmitting resin materials such as ABS (Acrylonitrile, Butadiene, Styrene), PC (Polycarbonate), PMMA (Polymethyl Methacrylate), PET (Polyethylene Terephthalate), and PVC (Polyvinyl Chloride).

[0021] The first lens 31 has an incident surface 31a and an exit surface 31b. The incident surface 31a receives excitation light emitted from the optical member 20. The incident surface 31a is disposed so as to intersect with the front direction. A first pattern layer 33 is formed on the incident surface 31a. The first pattern layer 33 has a configuration in which a pattern of a light-emitting layer 35 is formed along the incident surface 31a.

[0022] The second lens 32 has an incident surface 32a and an exit surface 32b. The incident surface 32a receives excitation light emitted from the optical member 20. The incident surface 32a is disposed so as to intersect with the front direction. A second pattern layer 34 is formed on the incident surface 32a. The second pattern layer 34 has a configuration in which a pattern of a light-emitting layer 36 is formed along the incident surface 32a.

[0023] The light-emitting layers 35, 36 generate generated light when irradiated with excitation light. The light-emitting layers 35, 36 include, for example, particulate light-emitting bodies. The light-emitting bodies 23 can be organic materials, fluorescent materials, etc. The light-emitting bodies can be organic materials in which a host material such as polyvinylcarbazole is doped with approximately 5% of a guest material such as acetylacetone. In this case, the light-emitting layers 35, 36 emit red light as generated light. The combination of the host material and the guest material is not limited to the above. Alternatively, the light-emitting bodies can be semiconductor crystals with a diameter of approximately 2 nm to 10 nm, such as quantum dots.

[0024] The first pattern layer 33 has a plurality of light-emitting layers 35 arranged in a predetermined shape, for example, a triangular shape. The dimensions and apex orientation of the light-emitting layers 35 can be set arbitrarily. The second pattern layer 34 has a plurality of light-emitting layers 36 arranged in a predetermined shape, for example, a triangular shape similar to the light-emitting layers 35 of the first pattern layer 33. The dimensions and apex orientation of the light-emitting layers 36 can be set arbitrarily and may differ from the shape of the light-emitting layers 35 of the first pattern layer 33.

[0025] In this embodiment, the incident surface 31a on which the first pattern layer 33 is formed becomes a first pattern surface 33a on which the light emitting pattern of the light emitting layer 35 is formed when the light emitting layer 35 of the first pattern layer 33 emits light. Moreover, the incident surface 32a on which the second pattern layer 34 is formed becomes a second pattern surface 34a on which the light emitting pattern of the light emitting layer 36 of the second pattern layer 34 emits light.

[0026] The first pattern layer 33 and the second pattern layer 34 are arranged in positions where the light-emitting layer 35 and the light-emitting layer 36 do not overlap when viewed from the front side. By setting the dimensions of the light-emitting layer 36 of the second pattern layer 34 larger than those of the light-emitting layer 35 of the first pattern layer 33, it is possible to emphasize the three-dimensional effect when viewed from the front side.

[0027] The outer lens 40 is disposed in a front direction relative to the light conversion unit 30. In this embodiment, the outer lens 40 is disposed closer to the front than the first pattern surface 33a and the second pattern surface 34a, which are the multiple pattern surfaces, and is provided as an output-side lens that can transmit and output the generated light in a front direction. The outer lens 40 has an incident surface 41 and an output surface 42. The incident surface 41 receives red light, which is the generated light from the light conversion unit 30. The output surface 42 outputs the light that has entered the incident surface 41 in a front direction. In this embodiment, the outer lens 40 is, for example, red, the same color as the generated light. The outer lens 40 transmits red light and absorbs light other than red light. Therefore, excitation light components contained in external light are absorbed by the outer lens 40. The outer lens 40 is held by, for example, a housing 50. The outer lens 40 and the housing 50 form a lamp chamber R. In this embodiment, the inner surface 51 of the housing 50 is black.

[0028] The operation of the vehicle lamp 100 configured as described above will be described. Fig. 4 is a diagram showing an example of the operation of the vehicle lamp 100 according to this embodiment. When the excitation light source 10 is turned on, the excitation light L emitted from the excitation light source 10 is emitted at an emission angle θ1 and is incident on the optical member 20. The excitation light L incident on the optical member 20 is emitted from the optical member 20 at an emission angle θ2 and is irradiated onto the first lens 31.

[0029] Of the excitation light L irradiated onto the first lens 31, a portion of the excitation light L is irradiated onto the light-emitting layer 35 of the first pattern layer 33. When the excitation light L is irradiated onto the light-emitting layer 35, the light-emitting layer 35 is excited and emits, for example, red generated light L1. The generated light L1 generated in the light-emitting layer 35 is emitted backward (toward the front).

[0030] Of the excitation light L irradiated onto the first lens 31, the excitation light L that passes through the light-emitting layers 35 is irradiated onto the second lens 32. Of the excitation light L irradiated onto the second lens 32, a portion of the excitation light L is irradiated onto the light-emitting layer 36 of the second pattern layer 34. When the excitation light L is irradiated onto the light-emitting layer 36, the light-emitting layer 36 is excited and emits, for example, red generated light L2. The generated light L2 generated in the light-emitting layer 36 is emitted backward (toward the front).

[0031] Generated light L1 emitted rearward from the light-emitting layer 35 of the first pattern layer 33 passes through the first lens 31 and then the second lens 32 to reach the outer lens 40. Generated light L2 emitted rearward from the light-emitting layer 36 of the second pattern layer 4 passes through the second lens 32 to reach the outer lens 40. Generated light L1 and generated light L2 that reach the outer lens 40 enter from the incident surface 41 of the outer lens 40 and are emitted in the front direction from the exit surface 42.

[0032] Fig. 5 is a diagram showing an example of the vehicle lamp 100 in a turned-on state as viewed from the front. As shown in Fig. 5, when the vehicle lamp 100 is viewed from the front, an emission pattern P1 due to the generated light L1 generated in the first pattern layer 33 and an emission pattern P2 due to the generated light L2 generated in the second pattern layer 34 are visible. Because the first pattern layer 33 is disposed further back (toward the rear) in the lamp chamber R than the second pattern layer 34, the emission pattern P1 is perceived as being located further back than the emission pattern P2, thereby achieving three-dimensional illumination with a sense of depth.

[0033] As described above, the vehicle lamp 100 according to this embodiment includes an excitation light source 10 that emits excitation light in a forward direction, an optical element 20 that is arranged in front of the excitation light source 10 and emits the excitation light emitted from the excitation light source 10 at a small emission angle, at least one pattern layer (first pattern layer 33, second pattern layer 34) on which a plurality of light-emitting layers (35, 36) are arranged that generate generated light when irradiated with the excitation light emitted from the optical element 20, pattern surfaces 33a, 34a that are arranged in a front-to-back direction and that are capable of forming light-emitting patterns of the light-emitting layers, and an emission-side lens (outer lens 40) that is arranged more forward than the plurality of pattern surfaces 33a, 34a and that is capable of transmitting and emitting the generated light in a forward direction.

[0034] According to this configuration, multiple pattern surfaces (33a, 34a) capable of forming the light-emitting patterns of the light-emitting layer are arranged in the front and back directions, so that when the light is turned on, one light-emitting pattern appears to be positioned behind the other light-emitting patterns. This allows for three-dimensional light emission with a sense of depth to be realized. Furthermore, the optical element 20 reduces the emission angle of the excitation light from the excitation light source 10, so the density of the light irradiated onto the pattern layer can be increased. This allows for increased brightness of the light-emitting pattern.

[0035] The vehicle lamp 100 according to this embodiment further includes a first lens 31 that is arranged on the front side of the optical element 20 and transmits the excitation light and the generated light, and a second lens 32 that is arranged on the front side of the first lens 31 and transmits the excitation light and the generated light, the pattern layer includes a first pattern layer 33 that is formed on the incident surface of the first lens 31 and a second pattern layer 34 that is formed on the incident surface of the second lens 32, and the multiple pattern surfaces include a first pattern surface 33a that is provided on the incident surface of the first lens 31 and a second pattern surface 33b that is provided on the incident surface of the second lens 32.

[0036] According to this configuration, it is possible to appropriately realize a configuration in which the first pattern layer 33 and the first pattern surface 33a are disposed closer to the rear surface of the lamp chamber R than the second pattern layer 34 and the second pattern surface 34a.

[0037] In the vehicle lamp 100 according to this embodiment, the first pattern layer 33 and the second pattern layer 34 are arranged so that the light emitting layer 35 and the light emitting layer 36 do not at least partially overlap when viewed from the front side.

[0038] According to this configuration, three-dimensional light emission with a sense of depth can be achieved in a state where the light emission patterns P1 and P2 do not overlap at least partially when viewed from the front side.

[0039] In the vehicle lamp 100 according to this embodiment, a plurality of excitation light sources 10 are provided, and one optical member 20 is provided for each excitation light source 10.

[0040] According to this configuration, the emission angle of the excitation light from each excitation light source 10 can be made small, and the density of the light irradiated onto the first pattern layer 33 and the second pattern layer 34 can be increased.

[0041] In the vehicle lamp 100 according to this embodiment, the optical member 20 converts the exit angle of the excitation light to 1 / 2 and emits it.

[0042] According to this configuration, the emission angle of the excitation light emitted from the excitation light source 10 is reduced to 1 / 2 by the optical member 20, and the lightness of the light emission patterns P1 and P2 can be increased.

[0043] The vehicle lamp 100 according to this embodiment further includes a housing 50 that houses the excitation light source 10, the optical member 20, the first pattern layer 33, and the second pattern layer 34, and the housing 50 has an inner surface 51 that is black.

[0044] This configuration makes it possible to highlight the three-dimensional illumination of the illumination patterns P1 and P2.

[0045] In the vehicle lamp 100 according to this embodiment, the inner lens 40, which is the light-emitting side lens, has the same color as the generated light.

[0046] This configuration allows the generated light to pass through and absorbs light of a different color from the generated light.

[0047] The technical scope of the present invention is not limited to the above-described embodiment, and appropriate modifications can be made without departing from the spirit of the present invention. For example, in the above-described embodiment, the second pattern layer 34 is disposed on the incident surface 32a of the second lens 32, but the present invention is not limited to this configuration.

[0048] Fig. 6 is a diagram showing the configuration of a vehicle lamp 100A according to a modified example. As shown in Fig. 6, the second pattern layer 34 may be configured to be disposed along the incident surface 41 of the outer lens 40. In this configuration, the incident surface 41 of the outer lens 40 becomes the second pattern surface 34a. With this configuration, no second lens is provided, and therefore the dimensions of the vehicle lamp 100A in the front-to-back directions can be reduced.

[0049] FIG. 7 is a diagram showing the configuration of a vehicle lamp 100B according to a modified example. As shown in FIG. 7, the vehicle lamp 100B is configured such that an output lens 60B is provided separately from the outer lens 40B. The output lens 60B is disposed inside the lamp chamber R, in front of the second lens 32 and behind the outer lens 40B. It transmits red light and absorbs light other than red light. In this case, the outer lens 40B can be, for example, colorless and transparent. This configuration allows for greater design freedom when the outer lens 40B is colorless and transparent.

[0050] FIG. 8 is a diagram illustrating the configuration of a vehicle lamp 100C according to a modified example. As shown in FIG. 8, the vehicle lamp 100C includes an exit lens 60C provided separately from the outer lens 40C. The exit lens 60C is disposed inside the lamp chamber R, in front of the first lens 31 and behind the outer lens 40C. The exit lens 60C transmits red light and absorbs light other than red light. In this case, the outer lens 40C may be, for example, colorless and transparent. In this configuration, the second pattern layer 34 may be disposed along the incident surface 61 of the exit lens 60C. The incident surface 61 on which the second pattern layer 34 is formed serves as the second pattern surface 34a on which the light-emitting pattern of the light-emitting layer 36 is formed when the light-emitting layer 36 of the second pattern layer 34 emits light. This configuration allows for greater design flexibility when the outer lens 40C is colorless and transparent.

[0051] Although the above embodiment has been described with reference to an example in which the inner surface 51 of the housing 50 is black, the present invention is not limited to this configuration. FIG. 9 is a diagram showing the configuration of a vehicle lamp 100D according to a modified example. In the vehicle lamp 100D shown in FIG. 9, a first lens 31 and a first pattern layer 33 are provided within the lamp chamber R, but a second lens 32 and a second pattern layer 34 are not provided. Furthermore, an inner panel 52 is provided on the rear side of the first pattern layer 33 in the housing 50. The inner panel 52 is plate-shaped and is disposed along the first lens 31. The inner panel 52 has an opening 52a at a position corresponding to the optical member 20. The opening 52a allows excitation light emitted from the optical member 20 to pass through. A reflective region 52b is formed on the front surface of the inner panel 52. The reflective region 52b reflects generated light emitted from the light-emitting layer 35 toward the rear surface toward the front surface. In this configuration, one of the plurality of pattern surfaces is the first pattern surface 33a, which is the incident surface 31a of the first lens 31 on which the first pattern layer 33 is formed. Also, one of the plurality of pattern surfaces is the reflective region 52a. That is, of the light generated in the light-emitting layer 35 of the first pattern layer 33, the light L3 traveling toward the rear side is reflected by the reflective region 52b, and this reflected light passes through the first lens 31 and the outer lens 40 and is emitted toward the front side of the vehicle. When the vehicular lamp 100D in the lit state is viewed from the front side, an emission pattern of the light L1 traveling toward the front from the light-emitting layer 35 of the first pattern layer 33 and an emission pattern of the light L3 reflected by the reflective region 52b are seen in the front-to-rear direction. In this way, by realizing a plurality of pattern surfaces aligned in the front-to-rear direction using a single pattern layer (first pattern layer 33), the dimensions in the front-to-rear direction can be reduced.

[0052] Furthermore, in the above embodiment, the first pattern layer 33 and the second pattern layer 34 are described as being formed so that the light-emitting layers 35, 36 do not entirely overlap when viewed from the front side, but this configuration is not limiting. The first pattern layer 33 and the second pattern layer 34 may have other configurations as long as they are formed so that at least a portion of the light-emitting layers 35, 36 do not overlap when viewed from the front side. In other words, the first pattern layer 33 and the second pattern layer 34 may be formed so that a portion of the light-emitting layers 35, 36 overlap when viewed from the front side. In this case, the patterns of the light-emitting layers 35, 36 can achieve even stronger three-dimensional light emission. [Explanation of symbols]

[0053] L... excitation light, L1, L2, L3... generated light, P1, P2... light emission pattern, R... lamp chamber, 1... vehicle, 2... vehicle body, 3... running gear, 4... tire, 7... back door, 10... excitation light source, 11... substrate, 20... optical member, 30... light conversion unit, 21, 31a, 32a, 41... incident surface, 22, 31b, 32b, 42... exit surface, 23... light emitter, 31... first lens, 32... second lens, 33... first pattern a first patterned surface; a second patterned surface; a second patterned surface; a light-emitting layer; a patterned layer; an outer lens; a housing; an inner panel; an opening; a reflective area;

Claims

1. an excitation light source that emits excitation light in a front direction; an optical member disposed in front of the excitation light source, the optical member causing the excitation light emitted from the excitation light source to exit at a smaller exit angle; at least one pattern layer including a plurality of light-emitting layers that generate light when irradiated with the excitation light emitted from the optical member; a plurality of pattern surfaces provided in front and rear directions, capable of forming a light-emitting pattern of the light-emitting layer; an exit-side lens that is arranged on the front side of the plurality of pattern surfaces and that is capable of transmitting and emitting the generated light in a front direction; A vehicle lighting fixture comprising:

2. a first lens disposed on a front side of the optical member and transmitting the excitation light and the generated light; and a second lens disposed on a front side of the first lens and transmitting the excitation light and the generated light. Further provided with the pattern layer includes a first pattern layer formed on the incident surface of the first lens and a second pattern layer formed on the incident surface of the second lens; The plurality of patterned surfaces include a first patterned surface provided on the incident surface of the first lens and a second patterned surface provided on the incident surface of the second lens.

2. A vehicle lamp according to claim 1.

3. The first pattern layer and the second pattern layer are formed so that the light emitting layers do not at least partially overlap each other when viewed from the front side.

3. A vehicle lamp according to claim 2.

4. The pattern layer is formed at least on the incident surface of the output lens.

2. A vehicle lamp according to claim 1.

5. The exit lens is used as an outer lens.

5. A vehicle lamp according to claim 4.

6. a plurality of the excitation light sources are provided, The optical member is provided for each of the excitation light sources.

2. A vehicle lamp according to claim 1.

7. The optical member converts the exit angle of the excitation light into 1 / 2 and emits the excitation light.

2. A vehicle lamp according to claim 1.

8. Further comprising a housing forming a lamp chamber; The housing has a black inner surface.

2. A vehicle lamp according to claim 1.

9. Further comprising a housing forming a lamp chamber; the housing has an inner surface on at least a part of a rear side of the pattern layer, the inner surface having a reflective area that reflects the generated light in a forward direction; One of the plurality of patterned surfaces is formed in the reflective area.

2. A vehicle lamp according to claim 1.

10. The exit lens has the same color as the generated light.

2. A vehicle lamp according to claim 1.

Images