Vehicle lamp

Abstract

To provide a lighting fixture for a vehicle capable of making a final light-emitting surface uniformly emit light even when a substrate is arranged in an inclined state to a plurality of final light-emitting surfaces.SOLUTION: In the vehicular lamp 10, the first lens portion 60 is configured to split light passing through the first lens portion into at least two light beams. The second lens portion 70 includes a first intermediate light incident surface 71A on which one of the two light beams is incident, a second intermediate light incident surface 71B on which the other of the two light beams is incident, a first final light emitting surface 72A from which the one light beam is emitted, and a second final light emitting surface 72B from which the other light beam is emitted, and the first final light emitting surface and the second final light emitting surface are disposed with a gap G therebetween in a front view. The substrate may be inclined with respect to the first and second final light-exiting surfaces.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] Patent document 1 describes a vehicle lamp that includes a substrate on which a light source is mounted, a first lens portion, and a second lens portion, and is configured so that light from the light source passes through the first lens and the second lens portion in that order and finally exits from the second lens portion to form a predetermined light distribution pattern. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-29606 Summary of the Invention [Problem to be solved by the invention]

[0004] However, Patent Document 1 has a problem in that if the substrate is arranged in an inclined state with respect to multiple final light-emitting surfaces (light-emitting surfaces of the second lens portions), the final light-emitting surfaces cannot emit light uniformly.

[0005] The present disclosure has been made to solve such problems, and aims to provide a vehicle lamp that can cause the final light-emitting surface to emit light uniformly even when the substrate is arranged at an angle relative to multiple final light-emitting surfaces (light-emitting surfaces of the second lens portion). [Means for solving the problem]

[0006] A vehicle lamp according to the present disclosure includes a substrate on which a light source is mounted, a first lens portion, and a second lens portion, and is configured so that light from the light source passes through the first lens portion and the second lens portion in this order and finally exits from the second lens portion to form a predetermined light distribution pattern, wherein the first lens portion is configured to split the light passing through the first lens portion into at least two light beams, and the second lens portion includes a first intermediate light entrance surface through which one of the two light beams enters, a second intermediate light entrance surface through which the other of the two light beams enters, a first final light exit surface from which the one light beam exits, and a second final light exit surface from which the other light beam exits, the first final light exit surface and the second final light exit surface being disposed with a gap therebetween in a front view, and the substrate is inclined with respect to the first final light exit surface and the second final light exit surface. The first intermediate light-entering surface is configured in a shape such that the one light entering through the first intermediate light-entering surface is refracted and travels toward the first final light-exiting surface, and the second intermediate light-entering surface is configured in a shape such that the other light entering through the second intermediate light-entering surface is refracted and travels toward the second final light-exiting surface.

[0007] With this configuration, even if the substrate is disposed in a tilted state with respect to a plurality of final light-emitting surfaces (light-emitting surfaces of the second lens portions), the final light-emitting surfaces can be made to emit light uniformly.

[0008] In the above vehicle lamp, the light entrance surface or the light exit surface of the first lens portion may include splitting means for splitting light passing through the first lens portion into at least two beams of light.

[0009] In addition, in the above-mentioned vehicle lamp, the angle and curvature of the first intermediate light-entering surface may be adjusted so that the one light entering through the first intermediate light-entering surface is refracted and travels toward the first final light-exiting surface, and the angle and curvature of the second intermediate light-entering surface may be adjusted so that the other light entering through the second intermediate light-entering surface is refracted and travels toward the second final light-exiting surface.

[0010] In the above vehicle lamp, the first intermediate light-entering surface and the second intermediate light-entering surface may be connected via a connecting surface.

[0011] In the above vehicle lamp, the first final light-emitting surface and the second final light-emitting surface may each be a surface that is substantially perpendicular to a reference line that extends in the longitudinal direction of the vehicle.

[0012] In the above vehicle lamp, the light exit surface of the first lens portion may include a light collecting means for collecting the two light beams.

[0013] Furthermore, in the above-described vehicle lamp, the second lens portion may include a first protrusion protruding on the side opposite the first intermediate light-entering surface and a second protrusion protruding on the side opposite the second intermediate light-entering surface, the first final light-exiting surface being provided at the tip of the first protrusion, and the second final light-exiting surface being provided at the tip of the second protrusion.

[0014] The above vehicle lamp may further include an extension disposed in the space between the first protrusion and the second protrusion.

[0015] The above-mentioned vehicle lamp may further comprise a plurality of optical systems each including the light source, the first lens portion, and the second lens portion, and the plurality of optical systems may be arranged in a row in a predetermined direction.

[0016] In the above vehicle lamp, the light sources of the plurality of optical systems may be mounted on the same substrate.

[0017] In the above vehicle lamp, the first lens portion and the second lens portion may be integrally molded. [Effects of the Invention]

[0018] The present disclosure makes it possible to provide a vehicle lamp that can cause the final light-emitting surfaces to emit light uniformly, even when the substrate is arranged at an angle relative to multiple final light-emitting surfaces (light-emitting surfaces of the second lens portion). [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a cross-sectional view of a vehicle lamp 10. FIG. [Figure 2] 2 is a cross-sectional view taken along the line AA of the light source 50, the first lens unit 60, and the second lens unit 70 extracted from FIG. [Figure 3] 3 is a diagram showing the optical path of light from a light source 50. FIG. [Figure 4] FIG. 2 is a perspective view of a first lens unit 60 and a second lens unit 70 extracted from FIG. [Figure 5] 10 is a perspective view for explaining the relationship between the second lens portion 70 (protrusion 72) and the extension 80. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, a vehicle lamp 10 according to an embodiment of the present disclosure will be described with reference to the accompanying drawings. Corresponding components in each drawing are given the same reference numerals, and duplicated explanations will be omitted.

[0021] The vehicle lamp 10 of this embodiment is a vehicle signal lamp that functions as a rear fog lamp, and is mounted on both the left and right sides of the rear end of a vehicle such as an automobile (not shown). Since the vehicle lamps 10 mounted on both the left and right sides have a symmetrical configuration, the following description will be directed to the vehicle lamp 10 mounted on the left side of the rear end of the vehicle (the left side when facing the front of the vehicle) as a representative.

[0022] Fig. 1 is a cross-sectional view of a vehicle lamp 10. Fig. 2 is a cross-sectional view of a light source 50, a first lens portion 60, and a second lens portion 70 taken out of Fig. 1, taken along the line AA.

[0023] As shown in FIG. 1, the vehicle lamp 10 includes a plurality of optical systems A1 to A3, each enclosed by a dashed-dotted rectangle. The optical systems A1 to A3 are mounted on a bracket 20 and disposed within a lamp chamber S, which is formed by an outer lens 30 and a housing 40. The optical systems A1 to A3 are arranged in a row in the vehicle width direction. The optical systems A1 to A3 may also be arranged in a row in a predetermined direction (for example, the vertical direction) other than the vehicle width direction. The number of optical systems is not limited to A1 to A3, and there may be one or more. The optical systems A1 to A3 have the same configuration. The following description will be given of optical system A2 as a representative. The first lens portion 60 and the second lens portion 70 of each of the optical systems A1 to A3 are connected via a connecting portion 100 to form a single lens body. The lens body (first lens portion 60, second lens portion 70, connecting portion 100) is integrally molded from a transparent resin such as acrylic or polycarbonate.

[0024] The optical system A2 includes a light source 50, a first lens unit 60, and a second lens unit 70. Reference numeral 80 in Fig. 1 denotes an extension (part).

[0025] <Light source 50> The light source 50 is a semiconductor light emitting element such as an LED that emits red light. The light source 50 is mounted on a substrate 90. The optical axis AX of the light source 50 50 passes through the center of the light emitting surface of the light source 50 (for example, a rectangular light emitting surface of 1 mm square) and extends in a direction perpendicular to the light emitting surface of the light source 50 (and the substrate 90). The substrate 90 is disposed in a state inclined with respect to the design line L1 (see FIG. 1). The substrate 90 is also disposed in a state inclined with respect to a reference line AX1 extending in the longitudinal direction of the vehicle (see FIG. 1). As a result, the light source 50 mounted on the substrate 90 also has its optical axis AX 50 are arranged in a state inclined with respect to a reference line AX1 extending in the longitudinal direction of the vehicle (see FIG. 1).

[0026] FIG. 3 is a diagram showing the optical path of light from the light source 50.

[0027] As shown in Figure 3, light (RayA, RayB) from the light source 50 passes through the first lens section 60 and the second lens section 70 in this order, and finally exits from the second lens section 70 (light exit surfaces 72A, 72B) to form a predetermined light distribution pattern (light distribution pattern for rear fog) not shown.

[0028] <First lens portion 60> FIG. 4 is a perspective view of the first lens unit 60 and the second lens unit 70 extracted from FIG.

[0029] The first lens unit 60 is configured to split the light passing through the first lens unit 60 into at least two light rays RayA and RayB (see FIG. 3). Specifically, as shown in FIG. 1, the first lens unit 60 is aligned with the optical axis AX of the light source 50 in a top view. 50 the inner first lens portion 60A, which is disposed on the inner side in the vehicle width direction relative to the light source 50; 50 The outer first lens portion 60B is disposed on the outer side in the vehicle width direction relative to the outer first lens portion 60A.

[0030] <First inner lens portion 60A> As shown in FIG. 1, inner first lens portion 60A includes inner light entrance surface 61A disposed facing light source 50, and inner light exit surface 62A disposed on the opposite side.

[0031] As shown in Figures 2 and 4, the inner light incident surface 61A includes a central light incident surface 61A1, a peripheral light incident surface 61A2 extending from the outer peripheral edge (upper and lower edges) of this central light incident surface 61A1 toward the light source 50, and a peripheral reflective surface 61A3 arranged outside this peripheral light incident surface 61A2.

[0032] The central light incident surface 61A1 is aligned along the optical axis AX 61A1 (See Figure 1) and the lens surface has a rotationally symmetric shape with respect to the focal point F 61A1 (See FIG. 1) The focal point F of the central light incident surface 61A1 61A1 is located near the light source 50 (light emitting surface). 61A1 is the optical axis AX of the light source 50 50The rear end is inclined at an angle θ1 (see FIG. 1) toward the inside in the vehicle width direction.

[0033] The peripheral reflecting surface 61A3 is aligned with the optical axis AX of the central light incident surface 61A1. 61A1 The peripheral reflecting surface 61A3 is a total reflection surface having a parabolic shape that is rotationally symmetric with respect to the central light incident surface 61A1. The light from the light source 50 is refracted and incident from the peripheral light incident surface 61A2, and is totally reflected by the peripheral reflecting surface 61A3. The peripheral reflecting surface 61A3 is a total reflection surface having a parabolic shape that is rotationally symmetric with respect to the central light incident surface 61A1. 61A1 The surface shape is designed so that the light is converted (collimated) into parallel light.

[0034] Light RayA (see FIG. 3) that enters the inner first lens portion 60A from the inner light incident surface 61A (central light incident surface 61A1 and peripheral light incident surface 61A2) exits from the inner light exit surface 62A.

[0035] The inner light-emitting surface 62A is a cylindrical lens surface that condenses the light RayA emitted from the inner light-emitting surface 62A in the horizontal direction. 62A (See Figure 4) extends vertically.

[0036] <Outer first lens portion 60B> The outer first lens portion 60B has the same configuration as the inner first lens portion 60A.

[0037] That is, as shown in FIG. 1, outer first lens portion 60B includes outer light entrance surface 61B disposed facing light source 50, and outer light exit surface 62B disposed on the opposite side.

[0038] As shown in FIG. 4, the outer light incident surface 61B includes a central light incident surface 61B1, a peripheral light incident surface 61B2 extending from the outer peripheral edge (upper and lower edges) of the central light incident surface 61B1 toward the light source 50, and a peripheral reflective surface 61B3 arranged outside the peripheral light incident surface 61B2.

[0039] The central light incident surface 61B1 is aligned along the optical axis AX 61B1 (See Figure 1) and the lens surface has a rotationally symmetric shape with respect to the focal point F 61B1(See FIG. 1) The focal point F of the central light incident surface 61B1 61B1 is located near the light source 50 (light emitting surface). 61B1 is the optical axis AX of the light source 50 50 The rear end is inclined outward in the vehicle width direction at an angle θ2 (see FIG. 1).

[0040] The peripheral reflecting surface 61B3 is aligned with the optical axis AX of the central light incident surface 61B1. 61B1 The peripheral reflecting surface 61B3 is a total reflection surface having a parabolic shape that is rotationally symmetric with respect to the central light incident surface 61B1. The light from the light source 50 is refracted and incident from the peripheral light incident surface 61B2, and is totally reflected by the peripheral reflecting surface 61B3. The peripheral reflecting surface 61B3 is a total reflection surface having a parabolic shape that is rotationally symmetric with respect to the central light incident surface 61B1. 61B1 The surface shape is designed so that the light is converted (collimated) into parallel light.

[0041] Light RayB (see FIG. 3) that enters the outer first lens portion 60B from the outer light entrance surface 61B (central light entrance surface 61B1 and peripheral light entrance surface 61B2) exits from the outer light exit surface 62B.

[0042] The outer light-emitting surface 62B is a cylindrical lens surface that condenses the light RayB emitted from the outer light-emitting surface 62B in the horizontal direction. 62B (See Figure 4) extends vertically.

[0043] The first lens portion 60 (inner first lens portion 60A and outer first lens portion 60B) configured as described above splits (equally divides) light passing through the first lens portion 60 into two light rays RayA and RayB (see FIG. 3). The light entrance surfaces (inner light entrance surface 61A, outer light entrance surface 61B) of the first lens portion 60 are an example of the splitting means of the present disclosure. Also, the light exit surfaces (inner light exit surface 62A, outer light exit surface 62B) of the first lens portion 60 are an example of the focusing means of the present disclosure.

[0044] <Second lens portion 70> As shown in FIG. 1, the second lens unit 70 is aligned with the optical axis AX of the light source 50 in a top view. 50 The inner second lens portion 70A is disposed on the inner side in the vehicle width direction relative to the light source 50. 50The outer second lens portion 70B is disposed on the outer side in the vehicle width direction relative to the outer lens portion 70A.

[0045] <Second inner lens portion 70A> As shown in FIG. 1, the inner second lens portion 70A includes an inner light entrance surface 71A (an example of a first intermediate light entrance surface of the present disclosure) arranged opposite the inner light exit surface 62A of the inner first lens portion 60A, and a protrusion 72 (an example of a first protrusion of the present disclosure) arranged on the opposite side thereof.

[0046] The tip of the protrusion 72 includes an inner light-emitting surface 72A (an example of a first final light-emitting surface of the present disclosure). The inner light-emitting surface 72A is a surface that is approximately perpendicular to a reference line AX1 (see FIG. 1) that extends in the longitudinal direction of the vehicle. The inner light-emitting surface 72A includes a plurality of lens cuts LC (e.g., fisheye lenses) that diffuse light RayA (see FIG. 3) emitted from the inner light-emitting surface 72A in all directions (see FIG. 4).

[0047] A plurality of protrusions 72 (inner light-emitting surfaces 72A) are arranged along a design line L1 that extends in a direction inclined with respect to a reference line AX2 that extends in the vehicle width direction (see FIG. 1).

[0048] The design line L1 and the substrate 90 are each arranged at an inclination relative to the vehicle width direction. The inclination angle of the substrate 90 relative to the vehicle width direction is greater than the inclination angle of the design line L1 relative to the vehicle width direction. Therefore, the distance L2 (see FIG. 1) in the vehicle fore-and-aft direction between the substrate 90 and the design line L1 is greater on the outer side in the vehicle width direction than on the inner side in the vehicle width direction.

[0049] The inner light incident surface 71A is configured in a shape such that one light beam RayA (see FIG. 3) entering through the inner light incident surface 71A is refracted and travels toward the inner light exit surface 72A. Specifically, the inner light incident surface 71A is a cylindrical lens surface. The cylindrical axis (not shown) of the inner light incident surface 71A extends in the vertical direction. The angle (angle with respect to the vehicle width direction) and curvature of the inner light incident surface 71A are adjusted so that one light beam RayA entering through the inner light incident surface 71A is refracted and travels toward the inner light exit surface 72A.

[0050] As described above, one of the two beams of light, RayA (see Figure 3), split by the first lens portion 60 (inner first lens portion 60A and outer first lens portion 60B) enters the inner second lens portion 70A from the inner light entrance surface 71A and exits from the inner light exit surface 72A.

[0051] <Outer second lens portion 70B> The outer second lens portion 70B has the same configuration as the inner second lens portion 70A.

[0052] That is, as shown in FIG. 1, the outer second lens portion 70B includes an outer light entrance surface 71B (an example of a second intermediate light entrance surface of the present disclosure) arranged opposite the outer light exit surface 62B of the outer first lens portion 60B, and a protrusion 72 (an example of a second protrusion of the present disclosure) arranged on the opposite side thereof.

[0053] The tip of the protrusion 72 includes an outer light-emitting surface 72B (an example of a second final light-emitting surface of the present disclosure). The outer light-emitting surface 72B is a surface that is approximately perpendicular to a reference line AX1 (see FIG. 1) that extends in the longitudinal direction of the vehicle. The outer light-emitting surface 72B includes a plurality of lens cuts LC (e.g., fisheye lenses) that diffuse light RayB (see FIG. 3) emitted from the outer light-emitting surface 72B in all directions (see FIG. 4).

[0054] The outer light incident surface 71B is configured in a shape such that the other light RayB (see FIG. 3) entering through the outer light incident surface 71B is refracted and travels toward the outer light exit surface 72B. Specifically, the outer light incident surface 71B is a cylindrical lens surface. The cylindrical axis (not shown) of the outer light incident surface 71B extends in the vertical direction. The angle (angle with respect to the vehicle width direction) and curvature of the outer light incident surface 71B are adjusted so that the other light RayB entering through the outer light incident surface 71B is refracted and travels toward the outer light exit surface 72B.

[0055] The inner light incident surface 71A and the outer light incident surface 71B are connected via a so-called connecting surface 73 (see FIG. 1) that does not have any optical function.

[0056] As described above, the other light RayB (see Figure 3) of the two lights split by the first lens portion 60 (inner first lens portion 60A and outer first lens portion 60B) enters the outer second lens portion 70B from the outer light entrance surface 71B and exits from the outer light exit surface 72B.

[0057] FIG. 5 is a perspective view for explaining the relationship between the second lens portion 70 (protrusion 72) and the extension 80. As shown in FIG.

[0058] As shown in FIG. 1, a plurality of protrusions 72 (light-emitting surfaces 72A, 72B) are arranged along a design line L1 extending in a direction inclined with respect to a reference line AX2 extending in the vehicle width direction (see FIG. 1).

[0059] 5, the extension 80 has a plurality of through holes H formed therein corresponding to the plurality of protrusions 72. The protrusions 72 are inserted into the corresponding through holes H from the rear of the extension 80 and are exposed from the through holes H. As a result, as shown in FIG. 1, a portion of the extension 80 is disposed in the gap G between the adjacent protrusions 72.

[0060] <Example of operation> In the vehicle lamp 10 having the above configuration, a rear fog lamp can be realized by turning on the light source 50.

[0061] The optical path of the light from the light source 50 is as follows.

[0062] When the light source 50 is turned on, a part of the light from the light source 50, RayA (see FIG. 3), enters the first lens unit 60 (inner first lens unit 60A) from the inner light entrance surface 61A (central light entrance surface 61A1 and peripheral light entrance surfaces 61A2) of the first lens unit 60 (inner first lens unit 60A), and is aligned along the optical axis AX of the central light entrance surface 61A1. 61A1The light RayA is converted (collimated) into light parallel to the first lens portion 60 (inner first lens portion 60A). This collimated light RayA travels inside the first lens portion 60 (inner first lens portion 60A) and exits from the inner light exit surface 62A of the first lens portion 60 (inner first lens portion 60A). At this time, the light RayA exiting from the inner light exit surface 62A is condensed in the horizontal direction by the action of the inner light exit surface 62A. This condensed light RayA enters the second lens portion 70 (inner second lens portion 70A) from the inner light entrance surface 71A of the second lens portion 70 (inner second lens portion 70A). At this time, light RayA entering from inner light entrance surface 71A is refracted by the action of inner light entrance surface 71A, travels inside second lens portion 70 (inner second lens portion 70A) toward inner light exit surface 72A, and exits from inner light exit surface 72A of second lens portion 70 (inner second lens portion 70A). At this time, light RayA exiting from inner light exit surface 72A is diffused in all directions by the action of inner light exit surface 72A (lens cut LC).

[0063] Similarly, when the light source 50 is turned on, another part of the light from the light source 50, RayB (see FIG. 3), enters the first lens unit 60 (outer first lens unit 60B) from the outer light entrance surface 61B (central light entrance surface 61B1 and peripheral light entrance surface 61B2) of the first lens unit 60 (outer first lens unit 60B), and is incident on the optical axis AX of the central light entrance surface 61B1. 61B1The light RayB is converted (collimated) into light parallel to the first lens portion 60 (outer first lens portion 60B). This collimated light RayB travels inside the first lens portion 60 (outer first lens portion 60B) and exits from the outer light exit surface 62B of the first lens portion 60 (outer first lens portion 60B). At this time, the light RayB exiting from the outer light exit surface 62B is condensed in the horizontal direction by the action of the outer light exit surface 62B. This condensed light RayB enters the second lens portion 70 (outer second lens portion 70B) from the outer light entrance surface 71B of the second lens portion 70 (outer second lens portion 70B). At this time, light RayB entering from outer light entrance surface 71B is refracted by the action of outer light entrance surface 71B, travels inside second lens portion 70 (outer second lens portion 70B) toward outer light exit surface 72B, and exits from outer light exit surface 72B of second lens portion 70 (outer second lens portion 70B). At this time, light RayB exiting from outer light exit surface 72B is diffused in all directions by the action of outer light exit surface 72B (lens cut LC).

[0064] As described above, a rear fog lamp is realized by the light RayA and RayB emitted from the light exit surfaces (inner light exit surface 72A, outer light exit surface 72B) of the second lens unit 70. At this time, the light RayA and RayB exit from the light exit surfaces (inner light exit surface 72A, outer light exit surface 72B) of the second lens unit 70, causing the light exit surfaces (inner light exit surface 72A, outer light exit surface 72B) of the second lens unit 70 to emit light. In other words, a red light-emitting region is formed on the light exit surfaces (inner light exit surface 72A, outer light exit surface 72B) of the second lens unit 70.

[0065] In the vehicle lamp 10 having the above configuration, by adjusting (for example, adjusting to have mutually different angles and curvatures) the angle and curvature of the inner light entrance surface 71A of the second lens portion 70 (inner second lens portion 70A) and the angle and curvature of the outer light entrance surface 71B of the second lens portion 70 (outer second lens portion 70B), the light exit surfaces (inner light exit surface 72A, outer light exit surface 72B) of the second lens portion 70 can be made to emit light uniformly (approximately uniformly).

[0066] As described above, according to the above embodiment, even if the substrate 90 is positioned at an angle relative to the light exit surfaces (inner light exit surface 72A, outer light exit surface 72B) of the second lens section 70 (see Figure 1), the light exit surfaces (inner light exit surface 72A, outer light exit surface 72B) of the second lens section 70 can be made to emit light uniformly.

[0067] Next, a modified example will be described.

[0068] In the above embodiment, an example has been described in which the vehicle lamp of the present disclosure is applied to a vehicle signal lamp that functions as a rear fog lamp, but the present disclosure is not limited to this. For example, the vehicle lamp of the present disclosure may be applied to a vehicle signal lamp that functions as a lamp other than a rear fog lamp (for example, a stop lamp).

[0069] In the above embodiment, the light from the light source 50 is split into two light beams RayA and RayB (see FIG. 3) by the light entrance surfaces (inner light entrance surface 61A, outer light entrance surface 61B) of the first lens unit 60. However, the present invention is not limited to this. For example, the light from the light source 50 may be split into two light beams RayA and RayB (see FIG. 3) by the light exit surfaces (inner light exit surface 72A, outer light exit surface 72B) of the first lens unit 60. Note that when three or more light exit surfaces of the second lens unit 70 are used to emit light, the light from the light source 50 may be split into three or more light beams by the light entrance surface (or light exit surface) of the first lens unit 60. This can be achieved, for example, by providing an intermediate light entrance surface between the inner light entrance surface 61A and the outer light entrance surface 61B in addition to the inner light entrance surface 61A and the outer light entrance surface 61B.

[0070] The numerical values ​​shown in the above embodiments are all examples, and it goes without saying that other appropriate numerical values ​​can be used.

[0071] The above-described embodiments are merely examples in all respects. The present disclosure should not be construed as being limited by the descriptions of the above-described embodiments. The present disclosure can be implemented in various other forms without departing from the spirit or main features thereof. [Explanation of symbols]

[0072] 10...Vehicle lighting fixtures 20…Bracket 30...Outer lens 40…Housing 50...Light source 60...First lens section 60A...First inner lens section 60B...First outer lens section 61A…Inner light entrance surface 61A1…Central light entrance surface 61A2…Ambient light incident surface 61A3...Surrounding reflective surface 61B…Outer light incident surface 61B1…Central light entrance surface 61B2…Ambient light incident surface 61B3... Surrounding reflective surface 62A…Inner light output surface 62B…Outer light output surface 70...Second lens section 70A...Second inner lens section 70B...Outer second lens section 71A…Inner light entrance surface 71B…Outer light incident surface 72...Protrusion 72A…Inner light output surface 72B…Outer light output surface 73...Connecting surface 80...Extension 90...Substrate 100...Connection part A1-A3…Optical system AX1...Baseline AX2...Baseline AX 50 , AX 61A1 , AX 61B1 …optical axis AX 62A , AX 62B ...Cylindrical shaft F 61A1 , F 61B1 …focus H...Through hole L1...Design line LC...Lens cut RayA, RayB...light S…Light room

Claims

1. A vehicle lamp comprising: a substrate on which a light source is mounted; a first lens portion; and a second lens portion; wherein light from the light source passes through the first lens portion and the second lens portion in this order and finally exits from the second lens portion to form a predetermined light distribution pattern, the first lens portion is configured to split light passing through the first lens portion into at least two light beams; the second lens portion includes a first intermediate light entrance surface through which one of the two light beams enters, a second intermediate light entrance surface through which the other of the two light beams enters, a first final light exit surface through which the one light beam exits, and a second final light exit surface through which the other light beam exits, the first final light-emitting surface and the second final light-emitting surface are arranged with a gap therebetween in a front view, the substrate is disposed in a tilted state with respect to the first final light-emitting surface and the second final light-emitting surface, the first intermediate light-entering surface is configured in a shape such that the one light beam entering through the first intermediate light-entering surface is refracted and travels toward the first final light-exiting surface, The second intermediate light-entering surface is configured in a shape such that the other light entering through the second intermediate light-entering surface is refracted and travels toward the second final light-exiting surface.

2. 2. The vehicular lamp according to claim 1, wherein the light-entering surface or the light-exiting surface of the first lens portion includes a splitting means for splitting light passing through the first lens portion into at least two beams of light.

3. an angle and a curvature of the first intermediate light-entering surface are adjusted so that the one light beam entering through the first intermediate light-entering surface is refracted and travels toward the first final light-exiting surface; 2. The vehicular lamp according to claim 1, wherein the angle and curvature of the second intermediate light-entering surface are adjusted so that the other light entering through the second intermediate light-entering surface is refracted and travels toward the second final light-exiting surface.

4. The vehicle lamp according to claim 3 , wherein the first intermediate light-entering surface and the second intermediate light-entering surface are connected via a connecting surface.

5. 2. The vehicular lamp according to claim 1, wherein the first final light-emitting surface and the second final light-emitting surface are surfaces that are substantially perpendicular to a reference line that extends in the longitudinal direction of the vehicle.

6. The vehicular lamp according to claim 2 , wherein the light exit surface of the first lens portion includes a light condensing means for condensing the two light beams.

7. the second lens portion includes a first protrusion protruding on a side opposite to the first intermediate light-entering surface and a second protrusion protruding on a side opposite to the second intermediate light-entering surface, the first final light-emitting surface is provided at a tip of the first protrusion, The vehicular lamp according to claim 1 , wherein the second final light-emitting surface is provided at a tip of the second protrusion.

8. The vehicular lamp according to claim 7 , further comprising an extension disposed in a space between the first protrusion and the second protrusion.

9. a plurality of optical systems each including the light source, the first lens unit, and the second lens unit; 2. The vehicle lamp according to claim 1, wherein the plurality of optical systems are arranged in a line in a predetermined direction.

10. The vehicle lamp according to claim 9 , wherein the light sources of the respective optical systems are mounted on the same substrate.

11. The vehicle lamp according to claim 1 , wherein the first lens portion and the second lens portion are integrally molded.

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