Vehicle lighting fixtures

Abstract

The present invention comprises a light guide body having a first incident surface and a second incident surface and guiding respective incident light beams from the first incident surface and the second incident surface, a first light source for emitting a light beam entering from the first incident surface, and a second light source for emitting a light beam entering from the second incident surface. A first radiation part and a second radiation part for respectively radiating the guided light beams are formed on the light guide body; the first radiation part is positioned closer to the second incident surface side than the second radiation part and is shaped so as to be displaced in a direction approaching the second light source with distance away from the second radiation part; the second radiation part is positioned closer to the first incident surface side than the first radiation part and is shaped so as to be displaced in a direction approaching the first light source with distance away from the first radiation part; and the light beam emitted from the first light source is radiated from the first radiation part, and the light beam emitted from the second light source is radiated from the second radiation part.

Description

[Technical Field]

[0001] The present invention relates to a technical field of a vehicle lamp having a light guide that guides and irradiates incident light. [Background technology]

[0002] Some vehicle lamps have a light guide and multiple light sources, and light emitted from each light source is guided by the light guide and irradiated to the outside from an irradiating portion of the light guide (see, for example, Patent Document 1).

[0003] In the vehicle lamp described in Patent Document 1, a part of the light guide is formed as a non-linear (curved) illumination portion, and light guided by the light guide is emitted from the illumination portion.

[0004] In a vehicle lamp having such a light guide, by adjusting the width of the illuminating portion, the length of the illuminating portion, the position of the illuminating portion relative to the light guide, etc. as desired, it is possible to set various light illumination conditions and improve visibility and design. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2019-164977 Summary of the Invention [Problem to be solved by the invention]

[0006] In a vehicle lamp configured to emit light from a non-linear illumination portion as described above, since the illumination portion is formed in a non-linear shape, there is a risk that the light utilization efficiency will be low depending on the state of incidence of light onto the illumination portion, and that light may not be emitted from the illumination portion with sufficient brightness.

[0007] SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle lamp that improves the efficiency of light utilization and ensures an appropriate illumination state of light. [Means for solving the problem]

[0008] A vehicle lamp according to the present invention includes a light guide having a first incident surface and a second incident surface, and guiding light incident from the first incident surface and the second incident surface, a first light source whose emitted light is incident from the first incident surface, and a second light source whose emitted light is incident from the second incident surface, wherein the light guide is formed with a first illumination section and a second illumination section that respectively irradiate the guided light, the first illumination section is located closer to the second incident surface than the second illumination section and is formed in a shape that displaces in a direction approaching the second light source as it becomes more distant from the second illumination section, the second illumination section is located closer to the first incident surface than the first illumination section and is formed in a shape that displaces in a direction approaching the first light source as it becomes more distant from the first illumination section, and the light emitted from the first light source is irradiated from the first illumination section, and the light emitted from the second light source is irradiated from the second illumination section. The plurality of first irradiation units and the plurality of second irradiation units are formed to be spaced apart in the left-right direction, the plurality of first light sources and the plurality of second light sources are arranged to be spaced apart in the left-right direction, and when the center side of the vehicle in the left-right direction is the inner side and the side opposite the inner side is the outer side, the first irradiation units are formed in a shape that displaces inward as they go upward, and the second irradiation units are formed in a shape that displaces inward as they go downward, and light is emitted from the first light source and the second light source toward the inner side based on the up-down direction. It is something.

[0009] As a result, the first irradiation section and the second irradiation section are formed into a shape that displaces in a direction approaching the second light source or the first light source as they move away from each other, and light emitted from the first light source is irradiated from the first irradiation section positioned on the second incident surface side of the second irradiation section, and light emitted from the second light source is irradiated from the second irradiation section positioned on the first incident surface side of the first irradiation section. [Effects of the Invention]

[0010] According to the present invention, the first irradiation section and the second irradiation section are formed in a shape that displaces in a direction approaching the second light source or the first light source as they move away from each other, and light emitted from the first light source is irradiated from the first irradiation section positioned on the second incident surface side of the second irradiation section, and light emitted from the second light source is irradiated from the second irradiation section positioned on the first incident surface side of the first irradiation section, thereby improving the light utilization efficiency and ensuring an appropriate light irradiation state. [Brief explanation of the drawings]

[0011] [Figure 1] 2 to 7 show an embodiment of the vehicle lamp of the present invention, and this figure is a schematic cross-sectional view of the vehicle lamp. [Figure 2] FIG. [Figure 3] FIG. 2 is a diagram illustrating the traveling direction of light. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Figure 5] FIG. 4 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 4 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7] 10A and 10B are diagrams illustrating the traveling direction of light in another configuration of the light-emitting section. DETAILED DESCRIPTION OF THE INVENTION

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle lamp according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

[0013] The vehicle lamp 1 is attached to, for example, both the left and right ends of the front end of the vehicle body, and is used as a so-called combination lamp that functions as a vehicle headlight and a vehicle marker light. However, the vehicle lamp 1 is not limited to a combination lamp, and may be either a single lamp or a combination lamp that functions at least as a vehicle marker light, as long as it has a configuration including multiple light sources and a light guide.

[0014] In the following, the front, rear, up, down, left and right directions will be explained based on the vehicle on which the vehicle lamp 1 is installed. However, the front, rear, up, down, left and right directions shown below are for the sake of convenience of explanation, and the present invention is not limited to these directions in terms of implementation. In addition, in the left and right direction, the center side of the vehicle is the inner side, and the side opposite the inner side is the outer side.

[0015] The vehicle lamp 1 comprises a lamp housing 2 that opens from the front to the side, and a cover 3 that closes the opening of the lamp housing 2 (see Figure 1). The lamp housing 2 and the cover 3 form a lamp outer casing 4, and the internal space of the lamp outer casing 4 forms a lamp chamber 5.

[0016] A marker light unit 6, a lamp unit 7, and an extension 8 are arranged in the lamp chamber 5.

[0017] The marker light unit 6 has a light guide 9, a plurality of substrates 10, a plurality of first light sources 11, and a plurality of second light sources 12 (see FIGS. 1 and 2).

[0018] The light guide 9 is formed, for example, in a plate shape and is formed in a shape that gradually displaces rearward as it goes outward. The lower end surface of the light guide 9 is formed as a first incident surface 9a, and the upper end surface is formed as a second incident surface 9b.

[0019] Light guide 9 is configured with a first light guide section 13, an intermediate light guide section 14, and a second light guide section 15, which are successively arranged from the top (see FIGS. 1 to 3). First light guide section 13 is inclined so as to be displaced rearward as it goes downward, intermediate light guide section 14 is oriented in a substantially horizontal direction, and second light guide section 15 is inclined so as to be displaced rearward as it goes upward. Therefore, light guide 9 is formed as a whole in a concave shape that opens both forward and to the sides.

[0020] The upper end of first light guiding section 13 is provided as substrate mounting section 13a having an uneven shape, and the lower end of second light guiding section 15 is provided as substrate mounting section 15a having an uneven shape.

[0021] The light guide 9 has, for example, linear light emitting portions 16, 16, ... formed at a distance from one another on the left and right sides. The light emitting portions 16 are formed, for example, by providing reflective steps 9c on parts of the back surface of the light guide 9 (see FIG. 4). Therefore, when light is incident on the light emitting portions 16, the incident light is totally reflected by the reflective steps 9c and is guided by the light emitting portions 16, and is emitted from the light emitting portions 16 in a range extending from the front to the sides.

[0022] Light-emitting section 16 is formed in a position spanning from first light-guiding section 13 to second light-guiding section 15 (see FIGS. 2 and 3). The portion of light-emitting section 16 formed in first light-guiding section 13 is a first irradiation section 17, the portion formed in intermediate light-guiding section 14 is an intermediate irradiation section 18, and the portion formed in second light-guiding section 15 is a second irradiation section 19.

[0023] First illumination section 17 is formed in a portion from a position near the upper end of first light guiding section 13 to the lower end of first light guiding section 13, and is inclined so as to displace rearward as it extends downward and also so as to displace outward as it extends downward (see FIGS. 2 and 5). Therefore, first illumination section 17 is formed in an inclined state so as to displace in a direction approaching second light source 12 as it extends away from second illumination section 19, and is located closer to second incident surface 9b than second illumination section 19.

[0024] The intermediate illumination section 18 is formed in a portion of the intermediate light guide section 14 from the upper end to the lower end, and extends substantially vertically. The intermediate illumination section 18 has a gently curved shape, for example, curved so as to be convex toward the outer surface of the light guide 9 (see FIG. 4). Note that the intermediate illumination section 18 is not limited to being curved so as to be convex toward the outer surface of the light guide 9, and may be curved in the extending direction, for example, curved so as to be convex downward or curved so as to be convex upward.

[0025] The second irradiation section 19 is formed in a portion from a position near the lower end of the second light guiding section 15 to the upper end of the second light guiding section 15, and is inclined so as to displace rearward and outward as it extends upward (see FIGS. 2 and 6). Therefore, the second irradiation section 19 is formed in an inclined state so as to displace in a direction approaching the first light source 11 as it moves away from the first irradiation section 17, and is located closer to the first incident surface 9a than the first irradiation section 17. It can also be considered that the first irradiation section 17 is formed in an inclined state so as to displace in the irradiation direction S as it moves away from the second irradiation section 19, and the second irradiation section 19 is formed in an inclined state so as to displace in the irradiation direction S as it moves away from the first irradiation section 17.

[0026] For example, a plurality of substrates 10 are arranged spaced apart from one another in the vertical and horizontal directions. The substrates 10, 10, ... are attached to the upper substrate attachment portion 13a of the light guide 9 while being positioned thereon and spaced apart from one another in the horizontal direction, and are also attached to the lower substrate attachment portion 15a of the light guide 9 while being positioned thereon and spaced apart from one another in the horizontal direction.

[0027] The number of substrates 10, 10, ... attached to the substrate attachment portion 13a is the same as the number of substrates 10, 10, ... attached to the substrate attachment portion 15a, and each is the same as the number of light-emitting portions 16, 16, ... of the light guide 9.

[0028] The boards 10, 10, ... attached to the board mounting portion 15a are respectively equipped with first light sources 11, 11, ..., and the boards 10, 10, ... attached to the board mounting portion 13a are respectively equipped with second light sources 12, 12, .... Therefore, the first light source 11 is positioned below the second irradiation unit 19, and the second light source 12 is positioned above the first irradiation unit 17. As the first light source 11 and the second light source 12, for example, light emitting diodes (LEDs) are used.

[0029] The first light source 11 is positioned opposite the first incident surface 9a of the light guide 9, and light emitted from the first light source 11 enters the light guide 9 from the first incident surface 9a and is guided by the light guide 9. The second light source 12 is positioned opposite the second incident surface 9b of the light guide 9, and light emitted from the second light source 12 enters the light guide 9 from the second incident surface 9b and is guided by the light guide 9.

[0030] The first light source 11 emits light, for example, upward, and the second light source 12 emits light, for example, downward.

[0031] The marker light unit 6 functions, for example, as a position lamp that allows the driver to recognize the width of the vehicle and as a welcome lamp that assists when boarding, and when functioning as a position lamp, the light-emitting elements 16, 16, ... are set to a lit or flashing state, and when functioning as a welcome lamp, the light-emitting elements 16, 16, ... are set to a sequential state in which they are lit in order in the left and right directions.

[0032] The lamp unit 7 is arranged behind the light guide 9 in the lamp chamber 5 and facing the light guide 9. The lamp unit 7 is, for example, a headlight unit that functions as a headlamp, and has, for example, a plurality of beam irradiators 7a, 7a, ... arranged spaced apart on the left and right. The beam irradiator 7a emits a high beam that illuminates a position at a long distance or a low beam that illuminates a position at a short distance.

[0033] Both the high beam and low beam are transmitted through the light guide 9 and the cover 3 in this order and irradiated forward, but are transmitted through the portion between the light emitting portions 16, 16 of the light guide 9. Therefore, the light irradiated from the beam irradiator 7a is not affected by the reflective step 9c formed on the back surface of the light emitting portion 16, and appropriate light distribution patterns for the high beam and low beam can be ensured.

[0034] The lamp unit 7 is not limited to a headlight unit, but may be a unit having the function of various kinds of marker lights.

[0035] As described above, in the vehicle lamp 1 , the lamp unit 7 is disposed at a position facing the light guide 9 , and the light emitted from the lamp unit 7 is transmitted through the light guide 9 .

[0036] Therefore, there is no need to position the lamp unit 7 away from the light guide 9 in order to irradiate the light emitted from the lamp unit 7 toward the outside from an area where the light guide 9 is not present, and the vehicle lamp 1 can be made compact by making effective use of space, and its functionality can be improved by configuring it to emit multiple lights with different functions.

[0037] The extension 8 has the function of partially shielding each part arranged in the lamp chamber 5, and at least the upper and lower ends of the light guide 9 are shielded from the front by the extension 8. Therefore, the extension 8 shields the board mounting portion 13a of the light guide 9, the board mounting portion 15a of the light guide 9, the first light sources 11, 11, ..., and the second light sources 12, 12, ....

[0038] In the vehicle lamp 1 configured as described above, when light is emitted from the first light source 11, the emitted light is incident on the first incident surface 9a and guided by a portion of the light guide 9 other than the light-emitting portion 16, and is incident, for example, from the lower end of the intermediate illumination portion 18 (see arrow A in FIGS. 3 and 5). The light that has entered from the lower end of the intermediate illumination portion 18 is guided by the intermediate illumination portion 18 and the first illumination portion 17 in this order, and is irradiated from the intermediate illumination portion 18 and the first illumination portion 17.

[0039] In this way, the vehicle lamp 1 is configured so that light emitted from the first light source 11, which is positioned below the second irradiation section 19, is irradiated from the first irradiation section 17, which is inclined so as to be displaced rearward as it goes downward. On the other hand, if light emitted from the second light source 12 is irradiated from the first irradiation section 17, which is inclined so as to be displaced rearward as it goes downward (see arrow C in Fig. 5), it is necessary to set the irradiation direction by bending the light significantly with respect to the traveling direction of the guided light, and it is very difficult to form a reflection step that bends the light significantly.

[0040] Therefore, as described above, by configuring the light emitted from the first light source 11 positioned below the second irradiation section 19 to be irradiated from the first irradiation section 17 (see arrow A in Figure 5), it becomes possible to set the irradiation direction without significantly bending the light relative to the direction of travel of the guided light, and it becomes possible to easily form the reflective step 9c.

[0041] Furthermore, when light is emitted from the second light source 12, the emitted light is incident from the second incident surface 9b and guided by a portion of the light guide 9 other than the light-emitting portion 16, and is incident, for example, from the upper end of the intermediate irradiation portion 18 (see arrow B in FIGS. 3 and 6). The light incident from the upper end of the intermediate irradiation portion 18 is guided by the intermediate irradiation portion 18 and the second irradiation portion 19 in this order, and is irradiated from the intermediate irradiation portion 18 and the second irradiation portion 19.

[0042] In this way, the vehicle lamp 1 is configured so that light emitted from the second light source 12 positioned above the first irradiation section 17 is irradiated from the second irradiation section 19 that is inclined so as to be displaced rearward as it goes upward. On the other hand, if the light emitted from the first light source 11 is irradiated from the second irradiation section 19 that is inclined so as to be displaced rearward as it goes upward (see arrow D in Fig. 6), it is necessary to set the irradiation direction by bending the light significantly with respect to the traveling direction of the guided light, and it is very difficult to form a reflection step that bends the light significantly.

[0043] Therefore, as described above, by configuring the light emitted from the second light source 12 positioned above the first irradiation section 17 to be irradiated from the second irradiation section 19 (see arrow B in Figure 6), it becomes possible to set the irradiation direction without significantly bending the light relative to the direction of travel of the guided light, and it becomes possible to easily form the reflective step 9c.

[0044] As described above, in the vehicle lamp 1, the first irradiation section 17 and the second irradiation section 19 are formed on the light guide 9, the first irradiation section 17 is positioned closer to the second incident surface 9b than the second irradiation section 19 and is formed in a shape that displaces in a direction approaching the second light source 12 as it moves away from the second irradiation section 19, and the second irradiation section 19 is positioned closer to the first incident surface 9a than the first irradiation section 17 and is formed in a shape that displaces in a direction approaching the first light source 11 as it moves away from the first irradiation section 17, so that light emitted from the first light source 11 is irradiated from the first irradiation section 17 and light emitted from the second light source 12 is irradiated from the second irradiation section 19.

[0045] Therefore, the first irradiation section 17 and the second irradiation section 19 are formed into a shape that displaces in a direction approaching the second light source 12 or the first light source 11 as they move away from each other, and light emitted from the first light source 11 is irradiated from the first irradiation section 17, which is positioned closer to the second incident surface 9b than the second irradiation section 19, and light emitted from the second light source 12 is irradiated from the second irradiation section 19, which is positioned closer to the first incident surface 9a than the first irradiation section 17.

[0046] This makes it possible to set the irradiation direction without bending the guided light significantly relative to the traveling direction of the light, thereby increasing the light utilization efficiency and ensuring an appropriate irradiation state of light.

[0047] In the vehicle lamp 1, the first light source 11 and the second light source 12 are mounted on a substrate 10, and the substrate 10 is attached to the light guide 9.

[0048] Therefore, since the substrate 10 on which the first light source 11 and the second light source 12 are mounted is attached to the light guide 9, the substrate 10 is positioned relative to the light guide 9, ensuring high positional accuracy relative to the first irradiation section 17 and the second irradiation section 19 of the first light source 11 and the second light source 12, and improving the incidence efficiency of the light emitted from the first light source 11 and the second light source 12 on the first irradiation section 17 and the second irradiation section 19.

[0049] Furthermore, an intermediate irradiation section 18 is formed between the first irradiation section 17 and the second irradiation section 19 so as to be continuous with both of them, and the intermediate irradiation section 18 is formed in a curved shape.

[0050] Therefore, by setting the direction and degree of curvature, it becomes possible to irradiate the light emitted from the intermediate irradiating section 18 in any direction and range, thereby improving the degree of freedom in light distribution control.

[0051] A light-emitting section 16A with another configuration will be described below (see FIG. 7).

[0052] The light-emitting section 16A has a first irradiation section 17 formed in the first light-guiding section 13, an intermediate irradiation section 18A formed in the intermediate light-guiding section 14, and a second irradiation section 19 formed in the second light-guiding section 15.

[0053] The intermediate irradiation unit 18A is composed of a first portion 18a located on the upper side and a second portion 18b located on the lower side, and the first portion 18a is inclined so as to be displaced inward as it goes upward, and the second portion 18b is inclined so as to be displaced inward as it goes downward. The inclination angle of the first portion 18a and the second portion 18b with respect to the vertical direction is smaller than the inclination angle of the first irradiation unit 17 and the second irradiation unit 19 with respect to the vertical direction, for example.

[0054] The first light source 11 emits light in a direction inclined obliquely upward and inward with respect to the vertical direction V, and the second light source 12 emits light in a direction inclined obliquely downward and inward with respect to the vertical direction V.

[0055] When light is emitted from first light source 11, the emitted light is incident on first incident surface 9a and guided by a portion of light guide 9 other than light-emitting portion 16A, and is incident, for example, on the lower end of first portion 18a in intermediate illumination portion 18A. The light incident on the lower end of first portion 18a is guided by first portion 18a and first illumination portion 17 in this order, and is irradiated from first portion 18a and first illumination portion 17.

[0056] On the other hand, when light is emitted from the second light source 12, the emitted light is incident on the second incident surface 9b and guided by a portion of the light guide 9 other than the light-emitting portion 16A, and is incident, for example, on the upper end of the second portion 18b in the intermediate illumination portion 18A. The light incident on the upper end of the second portion 18b is guided by the second portion 18b and the second illumination portion 19 in this order, and is irradiated from the second portion 18b and the second illumination portion 19.

[0057] In this configuration in which the intermediate irradiation section 18A is used, light is emitted from the first light source 11 diagonally inwardly upward, and the light emitted from the first light source 11 is guided and irradiated by the first irradiation section 17 which is displaced inward as it travels upward, and light is emitted from the second light source 12 diagonally inwardly downward, and the light emitted from the second light source 12 is guided and irradiated by the second irradiation section 19 which is displaced inward as it travels downward.

[0058] Therefore, the light emitted from the first light source 11 and the second light source 12 is less likely to be incident on the first irradiation section 17 and the second irradiation section 19 located adjacent to the first irradiation section 17 and the second irradiation section 19 to which the light is originally incident, and unintended light is less likely to be emitted from the adjacent first irradiation section 17 and second irradiation section 19, making it possible to form an appropriate light distribution pattern.

[0059] This configuration in which light is emitted inward from the first light source 11 and the second light source 12 is particularly effective in a sequential illumination mode in which the light-emitting units 16A, 16A, ... are lit sequentially in the left-right direction, as it makes it difficult for unintended light to be emitted from the adjacent light-emitting unit 16A.

[0060] In the above, an example is shown in which light emitted from the first light source 11 is incident from the lower end of the intermediate irradiation section 18 in the light-emitting section 16, and light emitted from the second light source 12 is incident from the upper end of the intermediate irradiation section 18 in the light-emitting section 16.

[0061] However, in the vehicle lamp 1, the light emitted from the first light source 11 may be incident on the lower end of the first illumination section 17 of the light-emitting section 16, and the light emitted from the second light source 12 may be incident on the upper end of the intermediate illumination section 18 of the light-emitting section 16. Alternatively, the light emitted from the first light source 11 may be incident on the lower end of the intermediate illumination section 18 of the light-emitting section 16, and the light emitted from the second light source 12 may be incident on the upper end of the second illumination section 19 of the light-emitting section 16. By setting the light incidence state in this way, neither the light emitted from the first light source 11 nor the second light source 12 is irradiated from the intermediate illumination section 18, and therefore it is possible to achieve an overall uniform illumination state for the light irradiated from the light-emitting section 16. [Explanation of symbols]

[0062] REFERENCE SIGNS LIST 1...vehicle lamp, 7...lamp unit, 9...light guide, 9a...first incident surface, 9b...second incident surface, 10...substrate, 11...first light source, 12...second light source, 17...first irradiating section, 18...intermediate irradiating section, 19...second irradiating section

Claims

1. a light guide having a first incident surface and a second incident surface, and guiding light incident from the first incident surface and the second incident surface, respectively; a first light source that emits light incident on the first incident surface; a second light source, the emitted light of which is incident from the second incident surface; The light guide is formed with a first irradiation section and a second irradiation section that respectively irradiate the guided light, the first irradiation unit is positioned closer to the second incident surface than the second irradiation unit, and is formed into a shape that displaces in a direction approaching the second light source as it becomes more distant from the second irradiation unit, the second irradiation unit is positioned closer to the first incident surface than the first irradiation unit, and is formed into a shape that displaces in a direction approaching the first light source as it becomes more distant from the first irradiation unit, the light emitted from the first light source is irradiated from the first irradiating unit, and the light emitted from the second light source is irradiated from the second irradiating unit; a plurality of the first irradiating units and a plurality of the second irradiating units are formed to be spaced apart from each other in the left-right direction, a plurality of the first light sources and a plurality of the second light sources are arranged to be spaced apart from each other in the left-right direction, When the center of the vehicle in the left-right direction is the inner side and the opposite side of the inner side is the outer side, The first irradiation portion is formed in a shape that displaces inward as it goes upward, The second irradiation portion is formed in a shape that displaces inward as it goes downward, Light is emitted from the first light source and the second light source inwardly with respect to the vertical direction. Vehicle lighting fixtures.

2. the first light source and the second light source are each mounted on a substrate; The substrate is attached to the light guide.

2. A vehicle lamp according to claim 1.

3. a lamp unit is disposed at a position facing the light guide; The light emitted from the lamp unit is transmitted through the light guide.

3. A vehicle lamp according to claim 1 or 2.

4. an intermediate irradiation section is formed between the first irradiation section and the second irradiation section, and both ends of the intermediate irradiation section are continuous with the first irradiation section and the second irradiation section; The intermediate irradiation portion is formed in a curved shape.

3. A vehicle lamp according to claim 1 or 2.

5. A light guide having a first incident surface and a second incident surface, and guiding light incident from the first incident surface and the second incident surface, respectively; a first light source that emits light incident on the first incident surface; a second light source, the emitted light of which is incident from the second incident surface; The light guide is formed with a first irradiation section and a second irradiation section that respectively irradiate the guided light, the first irradiation unit is positioned closer to the second incident surface than the second irradiation unit, and is formed into a shape that displaces in a direction approaching the second light source as it becomes more distant from the second irradiation unit, the second irradiation unit is positioned closer to the first incident surface than the first irradiation unit, and is formed into a shape that displaces in a direction approaching the first light source as it becomes more distant from the first irradiation unit, the light emitted from the first light source is irradiated from the first irradiating unit, and the light emitted from the second light source is irradiated from the second irradiating unit; an intermediate irradiation section is formed between the first irradiation section and the second irradiation section, and both ends of the intermediate irradiation section are continuous with the first irradiation section and the second irradiation section; The intermediate irradiation portion is formed in a curved shape. Vehicle lighting fixtures.

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