Vehicle lamp

Abstract

This vehicle lamp comprises: a diffusion light source disposed so as to face forward and having a rectangular light emission region for forming a diffusion pattern; a non-diffusion light source disposed so as to face forward and having a rectangular light emission region for forming a non-diffusion pattern; and a lens that emits forward the light from the diffusion light source and the non-diffusion light source. With reference to a state in which two opposite sides among the four sides of the light emission region are parallel in the horizontal direction, the diffusion light source has a greater angle of inclination around a rotational axis along a front–rear direction than the non-diffusion light source.

Description

Vehicle lamp

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

[0002] A configuration of a vehicle lamp including a plurality of light sources and a projection lens that irradiates light from the plurality of light sources toward the front of the vehicle is known (see Patent Document 1). In the vehicle lamp described in Patent Document 1, a light source for forming an oblique cut-off line of a low-beam pattern is arranged to be inclined with respect to the horizontal direction.

[0003] Japanese Patent No. 4618571

[0004] In vehicle lamps, in addition to the cut-off pattern for forming the cut-off line as described above, various patterns may be formed, such as non-diffusion patterns like a condensing pattern that condenses light in front of the vehicle, and diffusion patterns that diffuse light in front of the vehicle. When forming a diffusion pattern in front of the vehicle, for example, it is required to form a pattern that has large diffusion in the left-right direction and has gradation toward both ends in the up-down direction.

[0005] The present invention has been made in view of the foregoing, and an object of the present invention is to provide a vehicle lamp capable of forming a diffusion pattern that has large diffusion in the left-right direction and has gradation toward both ends in the up-down direction.

[0006] The vehicle lamp according to the present invention comprises: a diffusion light source arranged facing the front side and having a rectangular light-emitting region for forming a diffusion pattern; a non-diffusion light source arranged facing the front side and having a rectangular light-emitting region for forming a non-diffusion pattern; and a lens that emits light from the diffusion light source and the non-diffusion light source toward the front side, wherein compared with the non-diffusion light source, the diffusion light source has a larger inclination angle around a rotation axis along the front-back direction, on the basis of a state where two opposing sides among the four sides of the light-emitting region are parallel to the horizontal direction.

[0007] According to the present invention, a diffusion pattern that has large diffusion in the left-right direction and has gradation toward both ends in the up-down direction is formed.

[0008] Figure 1 is a diagram showing an example of a vehicle lighting device according to an embodiment. Figure 2 is a front view showing a part of the configuration of the vehicle lighting device. Figure 3 is a diagram showing the configuration along the A-A cross section in Figure 1. Figure 4 is a diagram showing the configuration along the B-B cross section in Figure 1. Figure 5 is a diagram showing an example of a low beam pattern. Figure 6 is a diagram showing an example of a high beam pattern. Figure 7 is a diagram showing an example of a diffusion pattern with a diffusion pattern superimposed. Figure 8 is a diagram showing a diffusion pattern according to a comparative example.

[0009] The following describes embodiments of the vehicle lighting device according to the present invention with reference to the drawings. However, the present invention is not limited by these embodiments. Furthermore, the components in the following embodiments include those that are easily substituted or substantially identical to those that are easily substituted by those skilled in the art.

[0010] In this embodiment, the front and rear directions are defined as the directions when the device is mounted on a vehicle (vehicle-mounted state). For example, when mounted on the front of a vehicle, the front is forward and the rear is backward. When mounted on the rear of a vehicle, the rear is forward and the front is backward. When mounted on the side of a vehicle, the outside of the vehicle is forward and the inside of the vehicle is backward.

[0011] Figure 1 shows an example of a vehicle lighting fixture 100 according to this embodiment. Figure 1 is a view of the vehicle lighting fixture 100 from the front. As shown in Figure 1, the vehicle lighting fixture 100 comprises a low beam unit UL and a high beam unit UH. The low beam unit UL is positioned above the high beam unit UH. In other words, the high beam unit UH is positioned below the low beam unit UL. The vehicle lighting fixture 100 according to this embodiment has a lens LS which is a single component formed by the low beam unit UL and the high beam unit UH. The vehicle lighting fixture 100 has a housing HG which houses each component. In Figure 1, the general shape of the housing HG is shown by a dashed line.

[0012] In this embodiment, the vehicle lights 100 are provided on the left and right sides of the front of the vehicle body. Therefore, in this embodiment, the front side in the front-rear direction will be described as the front side of the vehicle lights 100, and the rear side in the front-rear direction will be described as the rear side of the vehicle lights 100.

[0013] Figure 2 is a front view showing a part of the configuration of the vehicle lighting fixture 100. Figure 2 shows the state with the lens LS removed from the state in Figure 1, and shows the light source 10 as seen from the front. Figure 3 is a diagram showing the configuration along the A-A cross section in Figure 1. Figure 4 is a diagram showing the configuration along the B-B cross section in Figure 1.

[0014] The low-beam unit UL comprises a light source 10 and a lens section 20. The light source 10 includes diffusion light sources (low-beam diffusion light sources) 11 and 12 and a cutoff light source (low-beam non-diffusing light source) 13. The diffusion light sources 11 and 12 are light sources for forming a low-beam diffusion pattern. The diffusion light sources 11 and 12 have rectangular light-emitting surfaces (light-emitting regions) 11a and 12a. In this embodiment, the light-emitting surfaces 11a and 12a are, for example, square-shaped. The cutoff light source 13 is a light source for forming a low-beam pattern including a cutoff line. The cutoff light source 13 has a rectangular light-emitting surface 13a. In this embodiment, the light-emitting surface 13a is, for example, square-shaped.

[0015] The diffusion light sources 11, 12 and the cutoff light source 13 are mounted on the mounting surface 51a of the substrate 51 and arranged side by side in the left-right direction. The diffusion light sources 11 and 12 are positioned so that two opposing sides of the light-emitting surfaces 11a and 12a (for example, the top and bottom edges) are aligned horizontally. The diffusion light sources 11 and 12 are positioned on the outside of the vehicle in the left-right direction relative to the cutoff light source 13. In other words, the cutoff light source 13 is positioned on the inside of the vehicle in the left-right direction relative to the diffusion light sources 11 and 12. The cutoff light source 13 is positioned furthest inside the vehicle in the left-right direction.

[0016] The cutoff light source 13 is positioned such that two opposing sides of the light-emitting surface 13a are inclined around a rotation axis parallel to the front-to-back direction, with the horizontal direction as the reference point. In other words, when viewed from the front, the cutoff light source 13 is positioned such that two opposing sides of the light-emitting surface 13a are inclined with respect to the horizontal plane. The cutoff light source 13 is positioned such that the inclination angle α with respect to the horizontal plane is, for example, 30° or less.

[0017] The lens section 20 emits light from the light source 10 toward the front of the vehicle. The lens section 20 includes diffusion lens sections (low beam diffusion lens sections) 21 and 22 and a cutoff lens section (low beam non-diffusing lens section) 23.

[0018] The diffusion lens sections 21 and 22 are provided in a one-to-one correspondence with the diffusion light sources 11 and 12, respectively. As shown in Figure 3, the diffusion lens sections 21 and 22 have incident surfaces 21a and 22a and exit surfaces 21b and 22b. Light from the diffusion light sources 11 and 12 is incident on the incident surfaces 21a and 22a. The exit surfaces 21b and 22b emit the light incident on the incident surfaces 21a and 22a toward the front. The diffusion lens sections 21 and 22 form low beam diffusion patterns of different shapes in front of the vehicle.

[0019] The cutoff lens section 23 is provided in a one-to-one correspondence with the cutoff light source 13. The cutoff lens section 23 has an incident surface 23a and an exit surface 23b. Light from the cutoff light source 13 is incident on the incident surface 23a. The exit surface 23b emits the light incident on the incident surface 23a toward the front. The incident surface 23a has, for example, a straight cross-sectional shape. The exit surface 23b of the cutoff lens section 23 protrudes toward the front compared to the exit surfaces 21b and 22b of the diffusion lens sections 21 and 22.

[0020] The distance D13 between the cutoff light source 13 and the cutoff lens section 23 is greater than the distances D11 and D12 between the diffusion light sources 11 and 12 and the diffusion lens sections 21 and 22. In other words, the distance D13 between the light-emitting surface 13a of the cutoff light source 13 and the incident surface 23a of the cutoff lens section 23 is greater than the distances D11 and D12 between the light-emitting surfaces 11a and 12a of the diffusion light sources 11 and 12 and the incident surfaces 21a and 22a of the diffusion lens sections 21 and 22.

[0021] The high-beam unit UH comprises a light source 30 and a lens section 40. The light source 30 includes diffusion light sources (high-beam diffusion light sources) 31 and 32 and a focusing light source (high-beam non-diffusing light source) 33. The diffusion light sources 31 and 32 are light sources for forming the diffusion pattern of the high beam. The focusing light source 33 is a light source for forming the focusing pattern of the high beam.

[0022] As shown in Figure 2, the diffusion light sources 31, 32 and the focusing light source 33 are mounted on the mounting surface 51a of the substrate 51 and arranged side by side in the left-right direction. The diffusion light sources 31, 32 and the focusing light source 33 are positioned on the lower side relative to the diffusion light sources 11, 12 and the cutoff light source 13 of the low beam unit UL described above.

[0023] The diffusing light sources 31, 32 and the focusing light source 33 are, for example, square or rectangular in shape when viewed from the front. The diffusing light sources 31, 32 are positioned at an angle around a rotation axis parallel to the front-to-back direction, with respect to the state in which two opposing sides of the light-emitting surfaces 31a, 32a are aligned horizontally. In other words, when viewed from the front, the diffusing light sources 31, 32 are positioned so that two opposing sides of the light-emitting surfaces 31a, 32a are inclined with respect to the horizontal plane. The diffusing light sources 31, 32 are positioned such that their inclination angles β1, β2 with respect to the horizontal plane are larger than, for example, the inclination angle α of the cutoff light source 13 described above. The inclination angles β1, β2 of the diffusing light sources 31, 32 can be, for example, 40° or more and 50° or less, and more preferably 45°. For example, the inclination angles β1, β2 of the diffusing light source 31 and the diffusing light source 32 may be the same or different.

[0024] The diffusing light sources 31 and 32 are positioned on the outside of the vehicle in the left-right direction relative to the concentrating light source 33. In other words, the concentrating light source 33 is positioned on the inside of the vehicle in the left-right direction relative to the diffusing light sources 31 and 32. The concentrating light source 33 is positioned as far inside the vehicle as possible in the left-right direction. The concentrating light source 33 is positioned such that two opposing sides of the light-emitting surface 33a (for example, the top and bottom sides) are aligned horizontally. The diffusing light source 31 is positioned on the outside of the vehicle relative to the diffusing light source 32. In other words, the diffusing light source 32 is positioned on the inside of the vehicle relative to the diffusing light source 31.

[0025] The lens section 40 emits light from the light source 30 towards the front of the vehicle. As shown in Figure 4, the lens section 40 includes diffusion lens sections (high beam diffusion lens sections) 41 and 42 and a focusing lens section (high beam non-diffusing lens section) 43.

[0026] The diffusion lens sections 41 and 42 are provided in a one-to-one correspondence with the diffusion light sources 31 and 32, respectively. The diffusion lens sections 41 and 42 have incident surfaces 41a and 42a and exit surfaces 41b and 42b. Light from the diffusion light sources 31 and 32 is incident on the incident surfaces 41a and 42a. The incident surfaces 41a and 42a have a curved surface that is convex on the back side. The exit surfaces 41b and 42b emit the light incident on the incident surfaces 41a and 42a toward the front side. The exit surfaces 41b and 42b have a curved surface that is convex on the front side. The diffusion lens sections 41 and 42 form high beam diffusion patterns of different shapes in front of the vehicle.

[0027] The light-gathering lens section 43 is provided in a one-to-one correspondence with the light-gathering light source 33. The light-gathering lens section 43 has an incident surface 43a and an exit surface 43b. Light from the light-gathering light source 33 is incident on the incident surface 43a. The incident surface 43a has a curved surface that is convex on the back side. The exit surface 43b emits the light incident on the incident surface 43a to the front side. The exit surface 43b has a curved surface that is convex on the front side.

[0028] The lens portion 40 is positioned such that the front ends of the emission surfaces 41b and 42b of the diffusion lens portions 41 and 42 and the front end of the emission surface 43b of the focusing lens portion 43 are aligned in the front-to-back direction. That is, in a cross-sectional view, the front ends of the emission surfaces 41b and 42b of the diffusion lens portions 41 and 42 and the front end of the emission surface 43b of the focusing lens portion 43 are positioned such that they are at the same height (distance D20) from the mounting surface of the substrate 51 in the front-to-back direction.

[0029] The distance D21 between the diffusion light source 31 and the diffusion lens portion 41 is greater than the distance D22 between the diffusion light source 32 and the diffusion lens portion 42. In other words, the distance D21 between the light-emitting surface 31a of the diffusion light source 31 and the incident surface 41a of the diffusion lens portion 41 is greater than the distance D22 between the light-emitting surface 32a of the diffusion light source 32 and the incident surface 42a of the diffusion lens portion 42.

[0030] Furthermore, the distance D23 between the focusing light source 33 and the focusing lens portion 43 is greater than the distance D21 between the diffusing light source 31 and the diffusing lens portion 41. In other words, the distance D23 between the light-emitting surface 33a of the focusing light source 33 and the incident surface 43a of the focusing lens portion 43 is greater than the distance D21 between the light-emitting surface 31a of the diffusing light source 31 and the incident surface 41a of the diffusing lens portion 41.

[0031] Furthermore, the cutoff lens portion 23 has an emission surface 23b that protrudes more towards the front compared to the diffusion lens portions 21 and 22. In other words, the projection distance D16 from both ends in the left-right direction to the center of the emission surface 23b of the cutoff lens portion 23 is larger than the projection distances D14 and D15 from both ends in the left-right direction to the center of the emission surfaces 21b and 22b of the diffusion lens portions 21 and 22.

[0032] Next, the operation of the vehicle lighting device 100 configured as described above will be explained. By lighting the light sources 10 of the low beam unit UL (diffusing light sources 11, 12 and cutoff light source 13), light is emitted from the light-emitting surfaces 11a, 12a, and 13a of each light source toward the front. This light enters from the incident surfaces 21a, 22a, and 23a of the diffusion lens sections 21, 22 and the cutoff lens section 23, respectively, and is emitted from the exit surfaces 21b, 22b, and 23b, forming a low beam pattern toward the front of the vehicle. Figure 5 shows an example of a low beam pattern. In Figure 5, the V-V line indicates the vertical line of the screen, and the H-H line indicates the horizontal lines on the left and right of the screen.

[0033] As shown in Figure 5, the low beam pattern PL is formed by superimposing diffusion patterns PL1 and PL2 and a cutoff pattern PL3 having an oblique cutoff line CL. In this embodiment, the cutoff light source 13 is positioned such that, in a front view, two opposing sides of the light-emitting surface 13a (for example, the top and bottom sides) are inclined with respect to the horizontal plane. Therefore, the oblique cutoff line CL can be easily formed.

[0034] Furthermore, by illuminating the light sources 30 of the high beam unit UH (diffusing light sources 31, 32 and focusing light source 33), light is emitted from the light-emitting surfaces 31a, 32a, and 33a of each light source toward the front. This light enters from the incident surfaces 41a, 42a, and 43a of the diffusion lens sections 41, 42 and the focusing lens section 43, respectively, and is emitted from the exit surfaces 41b, 42b, and 43b, forming a high beam pattern toward the front of the vehicle. Figure 6 shows an example of a high beam pattern. As shown in Figure 6, the high beam pattern PH is formed by superimposing the diffusion patterns PH1 and PH2 and the focusing pattern PH3.

[0035] Figure 7 shows an example of a diffusion pattern P12 in which diffusion patterns PH1 and PH2 are superimposed. Figure 8 shows a diffusion pattern related to a comparative example. Figure 8 shows an example of a diffusion pattern P12A when a diffusion light source is arranged with tilt angles β1 and β2 set to 0°.

[0036] In this embodiment, the diffusion light sources 31 and 32 are arranged such that their inclination angles β1 and β2 with respect to the horizontal plane are larger than, for example, the inclination angle α of the cutoff light source 13 described above. As a result, the diffusion pattern P12 in Figure 7, in which diffusion patterns PH1 and PH2 are superimposed, exhibits greater diffusion in the left-right direction and a gradient pattern towards both ends in the up-down direction compared to the diffusion pattern P12A in the comparative example shown in Figure 8.

[0037] As described above, the vehicle light fixture 100 according to this embodiment includes a diffusion light source 31, 32 positioned facing the front and having a rectangular light-emitting surface for forming a diffusion pattern, a non-diffusion light source (cutoff light source 13, focusing light source 33) positioned facing the front and having a rectangular light-emitting surface for forming a non-diffusion pattern (cutoff pattern, focusing pattern), and a lens LS that emits light from the diffusion light sources 31, 32 and the non-diffusion light source to the front. The diffusion light sources 31, 32 have a larger inclination angle around the rotation axis along the front-to-back direction compared to the non-diffusion light source, based on a state where two opposing sides of the four sides of the light-emitting surface are parallel in the horizontal direction.

[0038] With this configuration, compared to a non-diffusing light source, the diffusing light sources 31 and 32 have a larger inclination angle around the rotation axis along the front-back direction, based on the state where two opposing sides of the four sides of the light-emitting surface are parallel to the horizontal. As a result, diffusion in the left-right direction is greater, and a pattern with a gradient can be formed towards both ends in the up-down direction.

[0039] In the vehicle lighting fixture 100 according to this embodiment, the non-diffusive pattern is a cutoff pattern PL3 that includes a cutoff line CL.

[0040] With this configuration, the diffusion light sources 31 and 32 have a larger inclination angle around the rotation axis along the front-back direction compared to the cutoff light source 13, based on the state where two of the four sides of the light-emitting surface are parallel to each other in the horizontal direction. As a result, diffusion in the left-right direction is greater, and a pattern with a gradient can be formed towards both ends in the up-down direction.

[0041] In the vehicular lamp 100 according to the present embodiment, the inclination angle of the non-diffusing light source around the rotation axis is greater than 0°.

[0042] According to this configuration, since the inclination angles of the diffusing light sources 31 and 32 are increased, the diffusion in the left-right direction is large, and a pattern with gradation toward both ends in the up-down direction can be formed.

[0043] In the vehicular lamp 100 according to the present embodiment, the diffusing light sources 31, 32, the cutoff light sources 13, and the condensing light source 33 have the same shape when viewed from the front.

[0044] According to this configuration, by using light sources having the same shape when viewed from the front, a pattern with large diffusion in the left-right direction and gradation toward both ends in the up-down direction can be formed.

[0045] In the vehicular lamp 100 according to the present embodiment, the non-diffusing light source is arranged on the inner side of the vehicle in the left-right direction compared to the diffusing light sources 31 and 32.

[0046] According to this configuration, since the non-diffusing light source is arranged on the inner side of the vehicle in the left-right direction compared to the diffusing light sources 31 and 32, it is possible to suppress light from being blocked by a structure arranged on the inner side of the vehicle with respect to the vehicular lamp 100.

[0047] In the vehicular lamp 100 according to the present embodiment, the lens LS includes: diffusing lens portions 41 and 42 arranged corresponding to the diffusing light sources 31 and 32, which emit light from the diffusing light sources 31 and 32 toward the front of the vehicle to form a diffusion pattern; and a cutoff lens portion 23 and a condensing lens portion 43 arranged corresponding to the cutoff light source 13 and the condensing light source 33, which emit light from the cutoff light source 13 and the condensing light source 33 toward the front of the vehicle to form a cutoff pattern and a condensing pattern, respectively.

[0048] According to this configuration, since one lens LS is provided with the diffusing lens portions 41, 42, the condensing lens portion 43, the diffusing lens portions 21, 22, and the cutoff lens portion 23, assembly and maintenance can be efficiently performed.

[0049] In the vehicle lighting device 100 according to this embodiment, two diffusion light sources (31, 32) and two diffusion lens portions (41, 42) are provided. The two diffusion light sources 31 and 32 have the same inclination angle around the axis of rotation and are high-beam diffusion light sources for forming a high-beam diffusion pattern. The two diffusion lens portions 41 and 42 are high-beam diffusion lens portions that form high-beam diffusion patterns of different shapes in front of the vehicle.

[0050] With this configuration, by increasing the tilt angle of the light sources 31 and 32 for diffusing the high beam, it is possible to form a high beam diffusion pattern that has a large diffusion in the left-right direction and a gradient towards both ends in the up-down direction.

[0051] In the vehicle lighting device 100 according to this embodiment, the distance between the diffusion light source 31, which is located on the outside of the vehicle, and the diffusion lens portion 41, which is provided corresponding to the diffusion light source 31, is greater than the distance between the diffusion light source 32, which is located on the inside of the vehicle, and the diffusion lens portion 42, which is provided corresponding to the diffusion light source 32, among the two diffusion lens portions 41 and 42.

[0052] With this configuration, the light incident on the focusing lens section 43 is easily focused, and the light incident on the diffusing lens sections 41 and 42 can be made to have a high luminous flux.

[0053] In the vehicle lighting device 100 according to this embodiment, the focusing lens portion 43 and the diffusing lens portions 41 and 42 are positioned so that the front end of the emission surface is aligned in the front-to-back direction.

[0054] With this configuration, the front end of the light-gathering lens section 43 and the diffusing lens sections 41 and 42 are positioned so that they align in the front-to-back direction, thus ensuring a good appearance when viewed from the front.

[0055] In the vehicle lighting device 100 according to this embodiment, the cutoff light source 13 is for forming a cutoff pattern that includes an oblique cutoff line for the low beam, and further comprises diffusion light sources 11 and 12 which are arranged on the left and right sides of the vehicle relative to the cutoff light source 13 and form a diffusion pattern for the low beam.

[0056] This configuration allows the light ray transmission range of the cutoff pattern to be optimized for when mounted on a vehicle, i.e., narrower on the inside and wider on the outside.

[0057] In the vehicle lighting device 100 according to this embodiment, the cutoff lens portion 23 is arranged in correspondence with the cutoff light source 13 and further comprises diffusion lens portions 21 and 22 arranged in correspondence with the diffusion light sources 11 and 12, and the cross-sectional shape of the cutoff lens portion 23 is different from that of the diffusion lens portions 21 and 22. That is, in the vehicle lighting device 100 according to this embodiment, the distance between the cutoff light source 13 and the cutoff lens portion 23 is greater than the distance between the diffusion light sources 11 and 12 and the diffusion lens portions 21 and 22, and the emission surface 23b of the cutoff lens portion 23 protrudes more towards the front compared to the diffusion lens portions 21 and 22.

[0058] This configuration allows for the proper design of the diffusion pattern and cutoff pattern of the low beam pattern.

[0059] In the vehicle lighting device 100 according to this embodiment, the low beam unit UL, which includes diffusion light sources 11, 12 and a cutoff light source 13, and diffusion lens sections 21, 21 and a cutoff lens section 23, is positioned in the upper position in the vehicle mounting state, and the high beam unit UH, which includes diffusion light sources 31, 32 and a concentrating light source 33, and diffusion lens sections 41, 41 and a concentrating lens section 43, is positioned in the lower position in the vehicle mounting state relative to the low beam unit UL.

[0060] This configuration makes it possible to suppress the overall light transmission area, which includes a low-beam pattern that illuminates relatively below the horizontal line in the vertical direction, and a high-beam pattern that illuminates relatively above the horizontal line in the vertical direction.

[0061] The technical scope of the present invention is not limited to the embodiments described above, and modifications can be made as appropriate without departing from the spirit of the invention. For example, in the above embodiments, the case in which the light-emitting surfaces (11a, 12a, 13a, 31a, 32a, 33a) of one light source 10, 30 form a single rectangular light-emitting region was described as an example, but the invention is not limited to this configuration. For example, two or more light sources, each having a polygonal shape such as a triangle, may be combined to form a rectangular or substantially rectangular light-emitting region.

[0062] Furthermore, although the above embodiment described a low-beam pattern PL having an oblique cutoff line CL as an example of a non-diffusing pattern, it is not limited to this. For example, the non-diffusing pattern may be a high-beam pattern having a cutoff line.

[0063] Furthermore, although the above embodiment described an example in which the diffusion lens sections 21, 22, 41, and 42, and the non-diffusing lens sections, the cutoff lens section 23 and the focusing lens section 43, are provided as an integral part, the invention is not limited to this configuration. For example, the diffusion lens sections 21, 22, 41, and 42, and the non-diffusing lens sections, the cutoff lens section 23 and the focusing lens section 43, may be provided separately. Alternatively, all or at least one of the diffusion lens sections 21, 22, 41, and 42, the cutoff lens section 23, and the focusing lens section 43 may be provided separately.

[0064] CL...diagonal cutoff line, HG...housing, LS...lens, P12, P12A, PH1, PH2, PL1, PL2...diffusion pattern, PH...high beam pattern, PH3...focusing pattern, PL...low beam pattern, PL3...cutoff pattern, UH...high beam unit, UL...low beam unit, 10, 30...light source, 11, 12, 31, 32...diffusion light source, 11a, 12a, 1 3a, 31a, 32a, 33a... Light-emitting surface, 13... Cutoff light source, 20, 40... Lens section, 21, 22, 41, 42... Diffusion lens section, 21a, 22a, 23a, 41a, 42a, 43a... Incident surface, 21b, 22b, 23b, 41b, 42b, 43b... Outgoing surface, 23... Cutoff lens section, 33... Focusing light source, 43... Focusing lens section, 51... Substrate, 51a... Mounting surface, 100... Vehicle lighting fixture

Claims

1. A vehicle light fixture comprising: a diffusion light source positioned facing forward and having a rectangular light-emitting region for forming a diffusion pattern; a non-diffusion light source positioned facing forward and having a rectangular light-emitting region for forming a non-diffusion pattern; and a lens that emits light from the diffusion light source and the non-diffusion light source toward the front, wherein the diffusion light source has a larger inclination angle around the axis of rotation along the front-rear direction compared to the non-diffusion light source, based on a state in which two opposing sides of the four sides of the light-emitting region are parallel in the horizontal direction.

2. The vehicle lamp according to claim 1, wherein the non-diffusing pattern includes a cutoff line.

3. The vehicle light fixture according to claim 2, wherein the non-diffusing light source has an inclination angle greater than 0° around the rotation axis.

4. The vehicle light fixture according to claim 1, wherein the diffuse light source and the non-diffusive light source have the same shape when viewed from the front.

5. The vehicle lighting device according to claim 1, wherein the non-diffusing light source is positioned further inward in the left-right direction compared to the diffusing light source.

6. The vehicle lamp according to claim 1, wherein the lens comprises a diffusion lens portion arranged in correspondence with the diffusion light source and emitting light from the diffusion light source forward of the vehicle to form the diffusion pattern, and a non-diffusion lens portion arranged in correspondence with the non-diffusion light source and emitting light from the non-diffusion light source forward of the vehicle to form the non-diffusion pattern.

7. The vehicle lamp according to claim 6, wherein two diffusion light sources and two diffusion lens portions are provided, the two diffusion light sources have the same inclination angle around the rotation axis and are high-beam diffusion light sources for forming the high-beam diffusion pattern, and the two diffusion lens portions are high-beam diffusion lens portions that form the high-beam diffusion patterns of different shapes in front of the vehicle.

8. The vehicle lighting device according to claim 7, wherein the distance between the first high beam diffusion light source, which is located on the outside of the vehicle, and the first high beam diffusion lens portion, which is provided in correspondence with the first high beam diffusion light source, is greater than the distance between the second high beam diffusion light source, which is located on the inside of the vehicle, and the second high beam diffusion lens portion, which is provided in correspondence with the second high beam diffusion light source, among the two high beam diffusion lens portions.

9. The vehicle lamp according to claim 7, wherein the non-diffusing light source has a high-beam non-diffusing light source that forms the non-diffusing pattern of the high beam, and the high-beam non-diffusing lens portion and the high-beam diffusion lens portion are positioned so that the front end of the emission surface is aligned in the front-rear direction.

10. The vehicle lighting device according to claim 6, wherein the non-diffusing light source has a low-beam non-diffusing light source that forms the non-diffusing pattern including the oblique cutoff line of the low beam, and further comprises a low-beam diffusion light source that is positioned on the vehicle side in the left-right direction relative to the non-diffusing light source and forms the diffusion pattern of the low beam.

11. The vehicle lamp according to claim 10, wherein the non-diffusing lens portion has a low-beam non-diffusing lens portion arranged in correspondence with the low-beam non-diffusing light source, and further comprises a low-beam diffusion lens portion arranged in correspondence with the low-beam diffusion light source, wherein the low-beam non-diffusing lens portion has a different cross-sectional shape from the low-beam diffusion lens portion.

12. The vehicle lamp according to claim 11, wherein the distance between the low-beam non-diffusing light source and the low-beam non-diffusing lens portion is greater than the distance between the low-beam diffusion light source and the low-beam diffusion lens portion, and the emission surface of the low-beam non-diffusing lens portion protrudes forward compared to the low-beam diffusion lens portion.

13. The vehicle lamp according to claim 12, wherein the low beam unit, which includes the low beam non-diffusing light source and the low beam diffusion light source, and the low beam non-diffusing lens portion and the low beam diffusion lens portion, is positioned in the upper position in the vertical direction when mounted on a vehicle, the non-diffusing light source has a high beam non-diffusing light source that forms the high beam non-diffusing pattern, the diffusion light source is a high beam diffusion light source for forming the high beam diffusion pattern, and the high beam unit, which includes the high beam non-diffusing light source and the high beam diffusion light source, and the high beam non-diffusing lens portion and the high beam diffusion lens portion positioned corresponding to the high beam non-diffusing light source, is positioned in the lower position in the vertical direction relative to the low beam unit when mounted on a vehicle.

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