JP2022064039A - Vehicular lamp and lens body - Google Patents

Abstract

To provide a vehicular lamp capable of using part of light other than part of light, which is made into a lens body, of light emitted from a light source in another optical system other than the lens body (for example, another lens body arranged adjacent to the above lens body).SOLUTION: A vehicular lamp comprises: a light source 21a; a lens body 51a that includes a light incident part 511 into which part of light Ray 1a, 1b of part of the light emitted from the light source is incident, and in which a notch part 511d through which the other part of light Ray 1c of the light emitted from the light source passes is formed, and that controls the part of light Ray 1a, 1b having been incident from the light incident part 511; and an optical system 62f that controls the other part of light Ray 1c having passed through the notch part 511d.SELECTED DRAWING: Figure 6

Description

The present invention relates to a vehicle lamp and a lens body, and in particular, a part of the light emitted by a light source other than a part of the light entering the lens body is used in an optical system other than the lens body. Regarding vehicle lighting equipment and lens bodies that can be used.

A vehicle lamp equipped with a plurality of combinations of a light source and a lens body (light guide body) including a light input section where the light emitted by the light source enters and a light emitting surface where the light emitted from the light source section emits light. It has been proposed (see, for example, Patent Document 1). The light entering part of the lens body includes an incoming surface, a cylindrical peripheral incoming surface extending from the outer peripheral edge of the incoming surface toward the light source, and a peripheral reflecting surface arranged outside the peripheral incoming surface. , Is equipped.

In Patent Document 1, by turning on each light source at the same time, most of the light emitted by each light source enters each lens body from the light entry portion (light entry surface and ambient light entry surface). , Light is emitted from each light source surface. As a result, the light emitting surface of each lens body emits light at the same time.

JP-A-2015-201278

However, in the vehicle lighting equipment described in Patent Document 1, the light source is surrounded by the light entry portion (light entry surface and ambient light entry surface) of the lens body, and most of the light emitted by the light source is the light input. Since the light enters the lens body from the unit, some of the light emitted by the light source other than the part of the light that enters the lens body is emitted by an optical system other than the lens body (for example, adjacent to the lens body). There is a problem that it cannot be used with other lens bodies arranged in the light.

The present invention has been made to solve such a problem, and some of the light emitted by the light source other than the part of the light entering the lens body is other than the lens body. It is an object of the present invention to provide a vehicle lamp and a lens body that can be used in another optical system (for example, another lens body arranged adjacent to the lens body).

The vehicle lighting equipment according to the present invention is a light source and an incoming light portion in which a part of the light emitted by the light source enters, and the other part of the light emitted by the light source is light. A lens body that includes an incoming light portion in which a notched portion that passes through is formed and controls the partial light that enters from the incoming light portion, and controls the other part of the light that has passed through the notched portion. It is equipped with an optical system.

With such a configuration, some of the light emitted by the light source other than the part of the light entering the lens body is adjacent to an optical system other than the lens body (for example, adjacent to the lens body). It is possible to provide vehicle lighting equipment that can be used with other lens bodies arranged in the same manner.

This controls the formation of a notch in the light entering portion of the lens body through which other part of the light emitted by the light source passes, and the other part of the light passing through the notch. This is due to the fact that it is equipped with an optical system.

Further, in another vehicle lighting tool according to the present invention, the first light source, the second light source, and the first light input unit to which a part of the light emitted by the first light source enters. Of the light emitted by the first light source, the first light input portion in which the first notch portion through which the other part of the light passes is formed, and the partial light received from the first light input portion is completely used. A first lens unit including a first light emitting surface including a first total reflecting surface that reflects light, and a second lens unit including a first light emitting surface from which a part of the light totally reflected by the first total reflecting surface is emitted. The lens body and the second light input section where a part of the light emitted by the second light source enters, and the other part of the light emitted by the second light source passes through. A third lens portion including a second light input portion in which a second notch is formed, a second total reflection surface that totally reflects the partial light received from the second light input portion, and the second total. A second lens body including a second light emitting surface including a second light emitting surface from which a part of the light totally reflected by the reflecting surface is emitted is provided, and the first of the light emitted by the first light source is provided. The first lens portion is arranged adjacent to the fourth lens portion so that the other part of the light that has passed through the notch enters the fourth lens portion and emits light from the second light emitting surface. The first notch is formed on the fourth lens side of the first lens, and the other light emitted by the second light source has passed through the second notch. The third lens portion is arranged adjacent to the second lens portion and the second notch is provided so that a part of the light enters the second lens portion and emits light from the first light emitting surface. The portion is formed on the second lens portion side of the third lens portion.

With such a configuration, some of the light emitted by the light source other than the part of the light entering the lens body is adjacent to an optical system other than the lens body (for example, adjacent to the lens body). It is possible to provide vehicle lighting equipment that can be used with other lens bodies arranged in the same manner.

This is because the first light input portion of the first lens body is formed with a first notch portion through which some of the light emitted by the first light source passes, and the first notch portion is passed. This is due to the fact that the fourth lens portion (second light emitting surface) from which the other part of the light is emitted is provided. Further, in the second incoming light portion of the second lens body, a second notch portion through which some of the light emitted by the second light source passes is formed, and the second notched portion is passed. This is due to the fact that it is provided with a second lens portion (first light emitting surface) from which some of the other light is emitted.

In the vehicle lamp, the emission color of the first light source and the emission color of the second light source may be different from each other.

Further, in the vehicle lighting equipment, the first lens body is an outer ring-shaped lens body including the first lens portion and the second lens portion, and the combination of the first light source and the first lens portion is , A plurality of the outer ring-shaped lens bodies are arranged in the circumferential direction, the second lens portion is arranged between the first lens portions adjacent to each other, and the second lens body is the third lens. It is an inner ring-shaped lens body including a portion and the fourth lens portion, and a plurality of combinations of the second light source and the third lens portion are arranged in the circumferential direction of the inner ring-shaped lens body.
The fourth lens portion may be arranged between the third lens portions adjacent to each other.

Further, in the vehicle lighting equipment, the first lens body is a first linear lens body including the first lens portion and the second lens portion and extends linearly, and the first light source and the first lens. A plurality of combinations with the portions are arranged in the direction in which the first linear lens body extends, and the second lens portions are arranged between the first lens portions adjacent to each other, and the second lens body is arranged. Is a second linear lens body that includes the third lens portion and the fourth lens portion and extends linearly, and the combination of the second light source and the third lens portion is the second linear lens body. The fourth lens portion may be arranged between the third lens portions adjacent to each other.

Further, in the vehicle lighting equipment, the first total reflection surface includes a transmission surface through which at least a part of the light emitted by the first light source is transmitted, and the second total reflection surface is emitted by the second light source. It includes a transmitting surface through which at least a part of the light is transmitted, and further includes a diffuser lens portion that covers the first light emitting surface, the second light emitting surface, the first total reflection surface, and the second total reflection surface. It is also good.

Further, the lens body according to the present invention is an incoming light portion in which a part of the light emitted by the light source enters, and a notch through which the other part of the light emitted by the light source passes. It includes an incoming light portion in which a portion is formed, and controls a part of the light that enters from the incoming light portion.

With such a configuration, some of the light emitted by the light source other than the part of the light entering the lens body is adjacent to an optical system other than the lens body (for example, adjacent to the lens body). It is possible to provide a lens body that can be used with other lens bodies arranged in the same manner.

This is due to the formation of a notch in the light entering portion of the lens body through which some of the light emitted by the light source passes.

According to the present invention, some of the light emitted by the light source other than the part of the light entering the lens body is arranged adjacent to the optical system other than the lens body (for example, adjacent to the lens body). It is possible to provide vehicle optics and lens bodies that can be used with other lens bodies.

It is a front view of the light fixture 10 for a vehicle. It is an exploded perspective view of a vehicle lamp 10. It is a front view of the ring-shaped lens body 40. FIG. 3 is a cross-sectional view taken along the line AA of FIG. FIG. 3 is a cross-sectional view taken along the line BB of FIG. In FIG. 3, it is an arrow view seen from the direction of arrow C. FIG. 3 is a sectional view taken along the line DD of FIG. FIG. 3 is a cross-sectional view taken along the line EE of FIG. In FIG. 3, it is an arrow view seen from the direction of arrow F. It is a figure which shows the schematic optical path of the light Ray1a, 1b and the like which are guided in the 2nd lens part 52. It is a figure which shows the light emitting region of the 2nd lens part 52a (the first light emitting surface 524), 52f (the first light emitting surface 524). It is a figure which shows the light emitting region of the outer ring-shaped lens body 50 and the inner ring-shaped lens body 60. It is a figure which shows the schematic optical path of the light Ray2a, 2b and the like which are guided in the 4th lens part 62. It is a figure which shows the light emitting region of the 2nd lens part 52a (the first light emitting surface 524), 52f (the first light emitting surface 524). It is a front view of the ring-shaped lens body 40 (a modified example).

Hereinafter, the vehicle lamp 10 (vehicle lamp unit) according to the embodiment of the present invention will be described with reference to the attached drawings. Corresponding components in each figure are designated by the same reference numerals, and duplicate description is omitted.

FIG. 1 is a front view of a vehicle lamp 10.

Hereinafter, an example in which the vehicle lamp 10 is a ring-shaped vehicle lamp (vehicle signal lamp) that functions as a DRL (Daytime Running Lamps) lamp, a position lamp, and a turn lamp will be described. The vehicle lighting fixture 10 is mounted on both the left and right sides of the front end portion of a vehicle (not shown) such as an automobile. Although not shown, a headlamp lamp unit (high beam lamp unit, low beam lamp unit) is also mounted on the front end of the vehicle in addition to the vehicle lamp 10. The head lamp lamp unit is attached to the vehicle in a state where the light irradiation unit (for example, a projection lens) is exposed from the inside (inside of the ring) of the ring-shaped vehicle lamp 10.

Since the vehicle lighting fixtures 10 mounted on both the left and right sides have a symmetrical configuration, the vehicle lighting fixtures 10 mounted on the right side of the front end portion of the vehicle (right side toward the front of the vehicle) will be described below as a representative. ..

FIG. 2 is an exploded perspective view of the vehicle lamp 10.

As shown in FIG. 2, the vehicle lamp 10 includes a housing 90, a light source mounting substrate 30, a ring-shaped lens body 40, a fisheye lens 70, and a grain lens 80. The housing 90, the light source mounting substrate 30, the ring-shaped lens body 40, the fisheye lens 70, and the grain lens 80 are each configured in a ring shape.

The vehicle lamp 10 is configured in a ring shape as a whole by attaching the light source mounting substrate 30 to the back side of the housing 90 and attaching the ring-shaped lens body 40, the fisheye lens 70 and the grain lens 80 to the front side. (See Fig. 1). The ring-shaped lens body 40, the fisheye lens 70, and the grain lens 80 are attached to the front side of the housing 90 by inserting a cylindrical portion 91 provided on the front side of the housing 90 inside each ring.

FIG. 3 is a front view of the ring-shaped lens body 40.

The ring-shaped lens body 40 is made of a transparent resin such as acrylic or polycarbonate, and has an outer ring-shaped lens body 50 and an inner ring-shaped lens body 60 arranged inside the outer ring-shaped lens body 50 as shown in FIG. The outer ring-shaped lens body 50 is an example of the first lens body of the present invention, and the inner ring-shaped lens body 60 is an example of the second lens body of the present invention.

In the present embodiment, in order to emphasize the DRL lamp that is constantly lit, the radial width d1 of the outer ring-shaped lens body 50 is set wider than the radial width d2 of the inner ring-shaped lens body 60. The radial width d1 of the outer ring-shaped lens body 50 may be the same as the radial width d2 of the inner ring-shaped lens body 60, or the radial width d2 of the inner ring-shaped lens body 60. It may be narrow.

The outer ring-shaped lens body 50 and the inner ring-shaped lens body 60 may be an integral product manufactured integrally by injection molding, or the outer ring-shaped lens body 50 and the inner ring-shaped lens body 60 that are separate from each other. May be an assembly manufactured by combining the above with known means (eg, screws, adhesives).

In FIG. 3, reference numerals 21a to 21f represent a first light source that is visually recognized when the outer ring-shaped lens body 50 is seen through. Reference numerals 22a to 22f represent a second light source 22 that is visually recognized when the inner ring-shaped lens body 60 is seen through. The first light sources 21a to 21f have the same configuration. The second light sources 22a to 22f have the same configuration. Hereinafter, when the first light source 21a to 21f and the second light source 22a to 22f are not particularly distinguished, they are described as the first light source 21 and the second light source 22.

The first light source 21 is a semiconductor light emitting element such as an LED that emits white light. The first light source 21 includes a light emitting surface. The light emitting surface is, for example, a rectangular light emitting surface of 1 mm square. The first light source 21 is arranged so that the light emitting surface faces the outer ring-shaped lens body 50 (the first light input portion 511 of the first lens portion 51). The optical axis of the first light source 21 passes through the center of the light emitting surface and extends in a direction orthogonal to the light emitting surface (direction orthogonal to the paper surface in FIG. 3).

The second light source 22 is a semiconductor light emitting device such as an LED that emits amber color light. The second light source 22 includes a light emitting surface. The light emitting surface is, for example, a rectangular light emitting surface of 1 mm square. The second light source 22 is arranged so that the light emitting surface faces the inner ring-shaped lens body 60 (the second light receiving portion 611 of the third lens portion 61). The optical axis of the second light source 22 passes through the center of the light emitting surface and extends in a direction orthogonal to the light emitting surface (direction orthogonal to the paper surface in FIG. 3).

As shown in FIG. 3, the first light source 21 is mounted on the light source mounting substrate 30 in a state where a plurality of the first light sources 21 are arranged at equal intervals in the circumferential direction of the outer ring-shaped lens body 50. Similarly, the second light source 22 is mounted on the light source mounting substrate 30 in a state where a plurality of the second light sources 22 are arranged at equal intervals in the circumferential direction of the inner ring-shaped lens body 60. At that time, the second light source 22 is arranged at a position corresponding to the center between the first light sources 21 adjacent to each other. For example, the second light source 22a is arranged at a position corresponding to the center between the first light sources 21a and 21b adjacent to each other.

As shown in FIG. 3, the outer ring-shaped lens body 50 includes a first lens portion 51a to 51f and a second lens portion 52a to 52f. The first lens portions 51a to 51f have the same configuration. Further, the second lens portions 52a to 52f have the same configuration. Hereinafter, when the first lens portions 51a to 51f and the second lens portions 52a to 52f are not particularly distinguished, they are referred to as the first lens portion 51 and the second lens portion 52.

A plurality of combinations of the first light source 21 and the first lens portion 51 are arranged at equal intervals in the circumferential direction of the outer ring-shaped lens body 50. The second lens unit 52 is arranged between the first lens units 51 adjacent to each other.

As shown in FIG. 3, the inner ring-shaped lens body 60 includes a third lens portion 61a to 61f and a fourth lens portion 62a to 62f. The third lens portions 61a to 61f have the same configuration. Further, the fourth lens portions 62a to 62f have the same configuration. Hereinafter, when the third lens portions 61a to 61f and the fourth lens portions 62a to 62f are not particularly distinguished, they are referred to as the third lens portion 61 and the fourth lens portion 62.

A plurality of combinations of the second light source 22 and the third lens portion 61 are arranged at equal intervals in the circumferential direction of the inner ring-shaped lens body 60. The fourth lens portion 62 is arranged between the third lens portions 61 adjacent to each other.

The first lens portion 51a is adjacent to the outside of the center of the fourth lens portion 62f of the inner ring-shaped lens body 60 in the circumferential direction in order to uniformly emit light from the fourth lens portion 62f of the inner ring-shaped lens body 60. Is arranged. Similarly, the first lens portion 51 other than the first lens portion 51a is also arranged adjacent to the outside of the center of the fourth lens portion 62 of the inner ring-shaped lens body 60 in the circumferential direction.

The third lens portion 61a is adjacent to the inner side of the center of the second lens portion 52a of the outer ring-shaped lens body 50 in the circumferential direction in order to uniformly emit light from the second lens portion 52a of the outer ring-shaped lens body 50. Is arranged. Similarly, the third lens portion 61 other than the third lens portion 61a is also arranged adjacent to the inside of the center of the second lens portion 52 of the outer ring-shaped lens body 50 in the circumferential direction.

Next, the detailed configuration of the ring-shaped lens body 40 will be described.

First, the detailed configuration of the first lens portion 51 of the outer ring-shaped lens body 50 will be described. Hereinafter, the detailed configuration of the first lens unit 51a will be described as a representative.

FIG. 4 is a sectional view taken along the line AA of FIG. FIG. 5 is a cross-sectional view taken along the line BB of FIG.

As shown in FIG. 4, the first lens unit 51a enters from the first light input unit 511 and the first light input unit 511, in which some of the light emitted by the first light source 21a, Rays 1a and 1b, enter. It includes a first total reflection surface 512 that totally reflects (internally reflects) a part of the emitted light Rays 1a and 1b.

The first light entry unit 511 has a central light entry surface 511a, a tubular peripheral light entry surface 511b extending from the outer peripheral edge of the central light entry surface 511a toward the first light source 21a, and a peripheral light entry surface 511b. It is provided with a tubular peripheral reflective surface 511c arranged on the outside.

The central light entry surface 511a is, for example, a lens surface having a shape rotationally symmetric with respect to the optical axis AX _511a of the central light entry surface 511a, and has a focal point F _511a (see FIG. 5).

As shown in FIG. 5, the first light source 21a is arranged in the vicinity of the focal point F _511a of the central light entering surface 511a with its light emitting surface 21a1 facing the first light entering portion 511. At that time, the focal point F _511a of the central light entering surface 511a is located at the center of the light emitting surface 21a1. Further, the optical axis AX _21a of the first light source 21a and the optical axis AX _511a of the central light entering surface 511a coincide with each other.

The peripheral reflection surface 511c is a total reflection surface having a parabolic shape that is rotationally symmetric with respect to the optical axis AX _511a of the central light entry surface 511a. The peripheral reflection surface 511c is refracted from the ambient light input surface 511b and enters light, and the light from the first light source 21a totally reflected by the peripheral reflection surface 511c is parallel to the optical axis AX _511a of the central light input surface 511a. Its surface shape is designed so that it can be converted (colimated) into light.

As shown in FIG. 4, in the first total reflection surface 512, a part of the light Rays 1a and 1b that have entered the first lens unit 51a from the first light input unit 511 are placed on both sides of the first lens unit 51a in the circumferential direction. Includes total reflection surfaces 512a and 512b that are totally reflected toward the second lens portions 52a and 52f arranged in.

The total reflection surface 512a is, for example, a plane reflection surface, and the angle θ1 with respect to the optical axis AX _21a of the first light source 21a so that the light Ray1a totally reflected by the total reflection surface 512a faces the second lens portion 52a. (See FIG. 4) Arranged in an inclined posture. The angle θ1 is, for example, 45 °. Similarly, the total reflection surface 512b is, for example, a plane reflection surface with respect to the optical axis AX _21a of the first light source 21a so that the light Ray1b totally reflected by the total reflection surface 512b is directed toward the second lens portion 52f. The angle θ2 (see FIG. 4) is tilted. The angle θ2 is, for example, 45 °.

Next, the detailed configuration of the second lens portion 52 of the outer ring-shaped lens body 50 will be described. Hereinafter, the detailed configuration of the second lens unit 52a will be described as a representative.

As shown in FIG. 4, the second lens unit 52a includes a first individual reflecting surface 521, a second individual reflecting surface 522, a flat surface 523, and a first light emitting surface 524.

The first individual reflecting surface 521 and the second individual reflecting surface 522 are symmetrical with respect to the central C _52a (see FIG. 4) in the circumferential direction of the second lens unit 52 in order to cause the second lens unit 52a to emit light uniformly (FIG. 4). It is arranged symmetrically. Further, the flat surface 523 is also arranged symmetrically (symmetrically in FIG. 4) with respect to the center C _52a (see FIG. 4) in the circumferential direction of the second lens portion 52 in order to make the second lens portion 52a emit light uniformly. There is.

A plurality of first individual reflecting surfaces 521 are provided between one end portion in the circumferential direction of the second lens portion 52a (left end portion in FIG. 4) and the central C _52a in the circumferential direction of the second lens portion 52a (see FIG. 4). Have been placed. At that time, the first individual reflecting surface 521 near one end of the second lens portion 52a in the circumferential direction is arranged farther from the first light emitting surface 524, and the first one near the center C _52a in the circumferential direction of the second lens portion 52a. The individual reflecting surface 521 is arranged closer to the first light emitting surface 524.

The first individual reflection surface 521 is, for example, a plane reflection surface, and is totally reflected by the total reflection surface 512a of the first lens portion 51a adjacent to one end portion (left end portion in FIG. 4) in the circumferential direction of the second lens portion 52a. The light Ray1a is totally reflected toward the first light emitting surface 524. Therefore, the first individual reflecting surface 521 is arranged at an angle θ3 (see FIG. 4) with respect to the reflected light Ray1a from the total reflecting surface 512a of the first lens unit 51a. The angle θ3 is, for example, 45 °. A flat surface 523 is arranged between the first individual reflection surfaces 521 adjacent to each other.

The second individual reflective surface 522 is located between the other end of the second lens portion 52a in the circumferential direction (right end in FIG. 4) and the center C _52a of the second lens portion 52a in the circumferential direction (see FIG. 4). Multiple are arranged. At that time, the second individual reflecting surface 522 near the other end in the circumferential direction of the second lens portion 52a is arranged farther from the first light emitting surface 524, and is closer to the center C _52a in the circumferential direction of the second lens portion 52a. 2 Individual reflecting surfaces 522 are arranged closer to the first light emitting surface 524.

The second individual reflection surface 522 is, for example, a plane reflection surface, and is totally reflected by the total reflection surface 512b of the first lens portion 51b adjacent to the other end portion (right end portion in FIG. 4) in the circumferential direction of the second lens portion 52a. The generated light Ray1b is totally reflected toward the first light emitting surface 524. Therefore, the second individual reflecting surface 522 is arranged at an angle θ4 (see FIG. 4) with respect to the reflected light Ray1b from the total reflecting surface 512b of the first lens unit 51b. The angle θ4 is, for example, 45 °. A flat surface 523 is arranged between the second individual reflecting surfaces 522 adjacent to each other.

FIG. 6 is an arrow view seen from the direction of arrow C in FIG.

As shown in FIGS. 5 and 6, the first light input portion 511 of the first lens portion 51a has a first notch portion 511d through which some other light Ray1c of the light emitted by the first light source 21a passes. Is formed. The first lens unit so that some other light Ray1c that has passed through the first notch 511d enters the fourth lens unit 62f from the flat surface 623 and emits light from the second light emitting surface 624 (see FIG. 6). The 51a is arranged adjacent to the outside of the fourth lens portion 62f of the inner ring-shaped lens body 60 (see FIG. 3), and the first notch portion 511d is located on the fourth lens portion 62f side of the first lens portion 51a. It is formed (see FIG. 6).

The first notch portion 511d extends from the end portion (lower end portion in the middle of FIG. 6) of the first light input portion 511 on the first light source 21a side toward the anti-first light source 21a side (upper part in FIG. 6). The first notch portion 511d penetrates the ambient light incoming surface 511b and the peripheral reflecting surface 511c.

By adjusting at least one of the shape and size of the first notch 511d, among the light emitted by the first light source 21, the light Ray1a and 1b that enter the first light input unit 511 of the first lens unit 51. The amount of light of the light and the amount of light of the light Ray1c passing through the first notch 511d can be adjusted.

As a result, by adjusting at least one of the shape and size of the first notch portion 511d, the light emitting region of the second lens portion 52 (first light emitting surface 524) (for example, see the light emitting regions A1 and A2 in FIG. 12). ) And the brightness of the light emitting region of the fourth lens unit 62 (see, for example, the light emitting region A3 in FIG. 12) can be adjusted.

In the present embodiment, the light emitting region of the second lens unit 52 (first light emitting surface 524) (for example, see the light emitting regions A1 and A2 in FIG. 12) and the light emitting region of the fourth lens unit 62 (second light emitting surface 624). Of the shape and size of the first notch 511d so that (for example, the light emitting region A3 in FIG. 12) has the same brightness (so that it can be visually recognized as emitting light at the same brightness). At least one has been adjusted. When the width of the second lens portion 52 <the width of the large first lens portion 51a, the size of the second notch portion> the size of the first notch portion. That is, when the width of the lens portion is large, the size of the notch portion is small, and when the width of the lens portion is small, the size of the notch portion is large.

Next, the detailed configuration of the third lens portion 61 of the inner ring-shaped lens body 60 will be described. Hereinafter, the detailed configuration of the third lens unit 61a will be described as a representative.

FIG. 7 is a cross-sectional view taken along the line DD of FIG. FIG. 8 is a cross-sectional view taken along the line EE of FIG.

As shown in FIG. 7, the third lens unit 61a enters from the second light input unit 611 and the second light input unit 611 into which some of the light emitted by the second light source 22a, Rays 2a and 2b, enter. It includes a second total reflection surface 612 that totally reflects (internally reflects) a part of the emitted light Rays 2a and 2b.

The second incoming light unit 611 has a central incoming light surface 611a, a tubular peripheral incoming light surface 611b extending from the outer peripheral edge of the central incoming light surface 611a toward the second light source 22a, and the peripheral incoming light surface 611b. It is provided with a tubular peripheral reflective surface 611c arranged on the outside.

The central light entering surface 611a is, for example, a lens surface having a shape rotationally symmetric with respect to the optical axis AX _611a of the central light entering surface 611a, and has a focal point F _611a (see FIG. 8).

As shown in FIG. 8, the second light source 22a is arranged in the vicinity of the focal point F _611a of the central light entering surface 611a in a state where the light emitting surface 22a1 faces the second light entering portion 611. At that time, the focal point F _611a of the central light entering surface 611a is located at the center of the light emitting surface 22a1. Further, the optical axis AX _22a of the second light source 22a and the optical axis AX _611a of the central light entering surface 611a coincide with each other.

The peripheral reflection surface 611c is a total reflection surface having a parabolic shape that is rotationally symmetric with respect to the optical axis AX _611a of the central light entry surface 611a. The peripheral reflection surface 611c is refracted from the ambient light input surface 611b and enters light, and the light from the second light source 22a totally reflected by the peripheral reflection surface 611c is parallel to the optical axis AX _611a of the central light input surface 611a. Its surface shape is designed so that it can be converted (colimated) into light.

As shown in FIG. 7, the second total reflection surface 612 allows a part of the light Rays 2a and 2b that have entered the third lens unit 61a from the second light input unit 611 on both sides in the circumferential direction of the third lens unit 61a. Includes total reflection surfaces 612a, 612b that totally reflect toward the fourth lens portions 62a, 62f arranged in.

The total reflection surface 612a is, for example, a plane reflection surface, and the angle θ5 with respect to the optical axis AX _22a of the second light source 22a so that the light Ray2a totally reflected by the total reflection surface 612a faces the fourth lens portion 62a. (See FIG. 7) They are arranged in an inclined posture. The angle θ5 is, for example, 45 °. Similarly, the total reflection surface 612b is, for example, a plane reflection surface with respect to the optical axis AX _22a of the second light source 22a so that the light Ray2b totally reflected by the total reflection surface 612b faces the fourth lens portion 62f. The angle θ6 (see FIG. 7) is tilted. The angle θ6 is, for example, 45 °.

Next, the detailed configuration of the fourth lens portion 62 of the inner ring-shaped lens body 60 will be described. Hereinafter, the detailed configuration of the fourth lens unit 62a will be described as a representative.

As shown in FIG. 7, the fourth lens unit 62a includes a first individual reflecting surface 621, a second individual reflecting surface 622, a flat surface 623, and a second light emitting surface 624.

The first individual reflecting surface 621 and the second individual reflecting surface 622 are symmetrical with respect to the central C _62a (see FIG. 7) in the circumferential direction of the fourth lens unit 62 in order to cause the fourth lens unit 62a to emit light uniformly (FIG. 7). It is arranged symmetrically. Further, the flat surface 623 is also arranged symmetrically (symmetrically in FIG. 7) with respect to the center C _62a (see FIG. 7) in the circumferential direction of the fourth lens portion 62 in order to make the fourth lens portion 62a emit light uniformly. There is.

A plurality of first individual reflecting surfaces 621 are provided between one end portion in the circumferential direction of the fourth lens portion 62a (left end portion in FIG. 7) and the central C _62a (see FIG. 7) in the circumferential direction of the fourth lens portion 62a. Have been placed. At that time, the first individual reflecting surface 621 near the one end in the circumferential direction of the fourth lens portion 62a is arranged farther from the second light emitting surface 624, and the first one near the center C _62a in the circumferential direction of the fourth lens portion 62a. The individual reflecting surface 621 is arranged closer to the second light emitting surface 624.

The first individual reflection surface 621 is, for example, a plane reflection surface, and is totally reflected by the total reflection surface 612a of the third lens portion 61a adjacent to one end portion (left end portion in FIG. 7) in the circumferential direction of the fourth lens portion 62a. The light Ray2a is totally reflected toward the second light emitting surface 624. Therefore, the first individual reflecting surface 621 is arranged at an angle θ7 (see FIG. 7) with respect to the reflected light Ray2a from the total reflecting surface 612a of the third lens unit 61a. The angle θ7 is, for example, 45 °. A flat surface 623 is arranged between the first individual reflecting surfaces 621 adjacent to each other.

The second individual reflective surface 622 is located between the other end of the fourth lens portion 62a in the circumferential direction (right end in FIG. 7) and the center C _62a of the fourth lens portion 62a in the circumferential direction (see FIG. 7). Multiple are arranged. At that time, the second individual reflecting surface 622, which is closer to the other end in the circumferential direction of the fourth lens portion 62a, is arranged farther from the second light emitting surface 624, and is closer to the center C _62a in the circumferential direction of the fourth lens portion 62a. 2 Individual reflecting surfaces 622 are arranged closer to the second light emitting surface 624.

The second individual reflection surface 622 is, for example, a plane reflection surface, and is totally reflected by the total reflection surface 612b of the third lens portion 61b adjacent to the other end portion (right end portion in FIG. 7) in the circumferential direction of the fourth lens portion 62a. The generated light Ray2b is totally reflected toward the second light emitting surface 624. Therefore, the second individual reflecting surface 622 is arranged at an angle θ8 (see FIG. 7) with respect to the reflected light Ray2b from the total reflecting surface 612b of the third lens unit 61b. The angle θ8 is, for example, 45 °. A flat surface 623 is arranged between the second individual reflecting surfaces 622 adjacent to each other.

FIG. 9 is an arrow view seen from the direction of arrow F in FIG.

As shown in FIGS. 8 and 9, the second light input portion 611 of the third lens portion 61a has a second notch portion 611d through which some other light Ray2c of the light emitted by the second light source 22a passes. Is formed. The third lens portion so that the other part of the light Ray2c that has passed through the second notch portion 611d enters the second lens portion 52a from the flat surface 523 and emits light from the first light emitting surface 524 (see FIG. 9). The 61a is arranged adjacent to the inside of the second lens portion 52a of the outer ring-shaped lens body 50 (see FIG. 3), and the second notch portion 611d is located on the second lens portion 52a side of the third lens portion 61a. It is formed (see FIG. 9).

The second notch portion 611d extends from the end portion (lower end portion in the middle of FIG. 9) of the second light input portion 611 on the second light source 22a side toward the anti-second light source 22a side (upper part in FIG. 9). The second notch portion 611d penetrates the ambient light entry surface 611b and the ambient reflection surface 611c.

By adjusting at least one of the shape and size of the second notch portion 611d, among the light emitted by the second light source 22, the light Ray2a, 2b that enters the second light input portion 611 of the third lens unit 61. The amount of light of the light and the amount of light of the light Ray2c passing through the second notch 611d can be adjusted.

As a result, by adjusting at least one of the shape and size of the second notch portion 611d, the light emitting region of the fourth lens portion 62 (second light emitting surface 624) (see, for example, the light emitting regions B1 and B2 in FIG. 14). ) And the brightness of the light emitting region of the second lens unit 62 (see, for example, the light emitting region B3 in FIG. 14) can be adjusted.

In the present embodiment, the light emitting region of the fourth lens unit 62 (second light emitting surface 624) (for example, see the light emitting regions B1 and B2 in FIG. 14) and the light emitting region of the second lens unit 52 (first light emitting surface 524). Of the shape and size of the second notch 611d so that (for example, see the light emitting region B3 in FIG. 14) has the same brightness (so that it can be visually recognized as emitting light at the same brightness). At least one has been adjusted.

Next, an example of the operation of the vehicle lamp 10 having the above configuration will be described.

First, an operation example in which the vehicle lamp 10 functions as a DRL lamp will be described.

When the vehicle lamp 10 functions as a DRL lamp, the first light source 21 is turned on with the first brightness by applying a first current to the first light source 21.

For example, when the first light source 21a is turned on with the first brightness, as shown in FIG. 4, some of the lights Ray1a and 1b emitted by the first light source 21a are external rings from the first light input unit 511. Light enters the first lens portion 51a of the shaped lens body 50. At that time, the light Rays 1a and 1b from the first light source 21 are collimated by the first light input unit 511 to the light parallel to the optical axis AX _511a of the central light input surface 511a.

The light Rays 1a and 1b (see FIG. 4) that have entered the first lens unit 51a are incident on the first total reflection surface 512 (512a, 512b) and are totally reflected by the first total reflection surface 512 (512a, 512b). Then, light is guided in the second lens portions 52a and 52f arranged on both sides of the first lens portion 51a in the circumferential direction (see FIGS. 4 and 10). FIG. 10 is a diagram showing a schematic optical path of light Rays 1a, 1b, etc. guided through the second lens unit 52.

As shown in FIG. 4, the light Rays 1a and 1b guided in the second lens portions 52a and 52f are the first individual reflecting surfaces 521 (plural) of the second lens portion 52a and the second lens portion 52f. 2 It is incident on the individual reflecting surfaces 522 (plural) and is totally reflected by the first individual reflecting surface 521 of the second lens unit 52a and the second individual reflecting surface 522 of the second lens unit 52f, and is the first of the second lens unit 52a. Light is emitted from the light emitting surface 524 and the first light emitting surface 524 of the second lens unit 52f, and from the first light emitting surface 524 of the second lens unit 52a and the first light emitting surface 524 of the second lens unit 52f.

As a result, as shown in FIG. 11, the second lens unit 52a (first light emitting surface 524) and 52f (first light emitting surface 524) emit light. FIG. 11 is a diagram showing a light emitting region of the second lens unit 52a (first light emitting surface 524) and 52f (first light emitting surface 524). In FIG. 11, the hatched regions A1 and A2 represent the light emitting regions of the second lens portions 52a (first light emitting surface 524) and 52f (first light emitting surface 524). Hereinafter, it will be referred to as light emitting regions A1 and A2.

On the other hand, among the light emitted by the first light source 21a, the other part of the light Ray1c passes through the first notch portion 511d formed in the first light input portion 511 of the first lens portion 51a and passes through the first lens portion. It faces the fourth lens portion 62f of the inner ring-shaped lens body 60 arranged adjacent to the inside of the 51a (see FIG. 10).

As shown in FIG. 6, the light Ray1c directed toward the fourth lens portion 62f diffuses and enters the fourth lens portion 62f from the flat surfaces 623 (plural) of the fourth lens portion 62f to enter the second light emitting surface. Light is emitted from 624.

As a result, as shown in FIG. 11, the fourth lens unit 62f (second light emitting surface 624) emits light. In FIG. 11, the hatched region A3 represents the light emitting region of the fourth lens unit 62f (second light emitting surface 624). Hereinafter, it will be referred to as a light emitting region A3.

Even when the first light source 21 other than the first light source 21a is lit with the first brightness, the lights Ray1a, 1b, and 1c emitted by the first light source 21 follow the same optical path as described above (see FIG. 10). An inner ring-shaped lens that emits light from a second lens portion 52 (first light source surface 524) arranged on both sides of the first lens portion 51 in the circumferential direction and is adjacent to the inside of the first lens portion 51. Light is emitted from the fourth lens portion 62 (second light source surface 624) of the body 60.

As a result, as shown in FIG. 12, the second lens unit 52 (first light emitting surface 524) and the fourth lens unit 62 (second light emitting surface 624) simultaneously emit light (simultaneous light emission). FIG. 12 is a diagram showing a light emitting region of the outer ring-shaped lens body 50 and the inner ring-shaped lens body 60. In FIG. 12, the hatched region represents the light emitting region of the second lens unit 52 (first light emitting surface 524) and the fourth lens unit 62 (second light emitting surface 624). In this way, the second lens unit 52 (first light emitting surface 524) and the fourth lens unit 62 (second light emitting surface 624) emit light at the same time, so that the ring is wide in the radial direction (d1 + d2, see FIG. 12). A light emitting region is formed. This ring-shaped light emitting region is formed in white.

At that time, the light emitting regions A1 and A2 of the second lens unit 52a (first light emitting surface 524) and 52f (first light emitting surface 524) and the light emitting region A3 of the fourth lens unit 62f (second light emitting surface 624) are the same. It emits light with the brightness of.

This is because at least one of the shapes and sizes of the first notch 511d is the light emitting regions A1, A2 and the fourth lens portion of the second lens portions 52a (first emission surface 524) and 52f (first emission surface 524). This is because the light emitting region A3 of 62f (second light emitting surface 624) is adjusted to have the same brightness.

As described above, light is emitted from the outer ring-shaped lens body 50 (first light emitting surface 524 of the second lens unit 52) and from the inner ring-shaped lens body 60 (second light emitting surface 624 of the fourth lens unit 62). The emitted light further passes through the fisheye lens 70 and the grain lens 80 and is radiated forward. As a result, a DRL lamp is realized.

At that time, light is emitted from the outer ring-shaped lens body 50 (first light emitting surface 524 of the second lens unit 52) and from the inner ring-shaped lens body 60 (second light emitting surface 624 of the fourth lens unit 62). Light is diffused by the fisheye lens 70 and the grain lens 80.

As a result, a ring-shaped light emitting region wide in the radial direction (see the hatched region RA in FIG. 1) that emits uniform light (appears to be uniformly emitted) is formed. This ring-shaped light emitting region RA is formed in white.

Further, in the present embodiment, for example, between the second lens portion 52 of the outer ring-shaped lens body 50 and the third lens portion 61 of the inner lens-shaped lens body 60, and the first lens portion of the outer ring-shaped lens body 50. A slit S (see FIG. 12) is formed between the 51 and the fourth lens portion 62 of the inner lens-shaped lens body 60. The grain lens 80 is provided with a plurality of lens portions 81 (see FIG. 1) radially corresponding to the slit S. The light emitted from the slit S (miscellaneous light from the first light source 21) passes through the lens portion 81. As a result, the lens portion 81 emits white light (it shines faintly). As a result, a new light emission appearance is realized in which the plurality of radial lens portions 81 emit white light against the background of the ring-shaped light emitting region RA. The slit S and the lens portion 81 may be omitted.

In the vehicle lamp 10, a second current smaller than the first current is applied to the first light source 21, and the first light source 21 is turned on with a second brightness darker than the first brightness, thereby lighting the vehicle lamp. 10 can be made to function as a position lamp.

Next, an operation example in which the vehicle lamp 10 functions as a turn lamp will be described.

When the vehicle lamp 10 functions as a turn lamp, the second light source 22 is turned on by applying a third current to the second light source 22.

For example, when the second light source 22a is turned on, as shown in FIG. 7, a part of the light Ray2a and 2b emitted by the second light source 22a is the second of the inner ring-shaped lens body 60 from the second light input unit 611. 3 Light enters the lens unit 61a. At that time, the light Rays 2a and 2b from the second light source 22 are collimated by the second light input unit 611 to light parallel to the optical axis AX _611a of the central light input surface 611a.

The light Rays 2a and 2b (see FIG. 7) that have entered the third lens unit 61a are incident on the second total reflection surface 612 (612a, 612b) and are totally reflected by the second total reflection surface 612 (612a, 612b). Then, light is guided in the fourth lens portions 62a and 62f arranged on both sides of the third lens portion 61a in the circumferential direction (see FIGS. 7 and 13). FIG. 13 is a diagram showing a schematic optical path of light Rays 2a, 2b, etc. guided through the fourth lens unit 62.

As shown in FIG. 7, the light Rays 2a and 2b guided in the fourth lens portions 62a and 62f are the first individual reflecting surfaces 621 (plural) of the fourth lens portion 62a and the fourth lens portion 62f. 2 It is incident on the individual reflecting surfaces 622 (plural) and is totally reflected by the first individual reflecting surface 621 of the fourth lens unit 62a and the second individual reflecting surface 622 of the fourth lens unit 62f, and is completely reflected by the second individual reflecting surface 62a of the fourth lens unit 62a. Light is emitted from the light emitting surface 624 and the second light emitting surface 624 of the fourth lens unit 62f, and from the second light emitting surface 624 of the fourth lens unit 62a and the second light emitting surface 624 of the fourth lens unit 62f.

As a result, as shown in FIG. 14, the fourth lens unit 62a (second light emitting surface 624) and 62f (second light emitting surface 624) emit light. FIG. 14 is a diagram showing a light emitting region of the fourth lens unit 62a (second light emitting surface 624) and 62f (second light emitting surface 624). In FIG. 14, the hatching regions B1 and B2 represent the light emitting regions of the fourth lens portions 62a (second light emitting surface 624) and 62f (second light emitting surface 624). Hereinafter, it will be referred to as light emitting regions B1 and B2.

On the other hand, some of the other light Ray2c of the light emitted by the second light source 22a passes through the second notch 611d formed in the second light input portion 611 of the third lens portion 61a and passes through the third lens portion. It faces the second lens portion 52a of the outer ring-shaped lens body 50 arranged adjacent to the outside of the 61a (see FIG. 13).

As shown in FIG. 9, the light Ray2c directed toward the second lens portion 52a diffuses and enters the second lens portion 52a from the flat surfaces 523 (plural) of the second lens portion 52a to enter the first light emitting surface. Light is emitted from 524.

As a result, as shown in FIG. 14, the second lens portion 52a (first light emitting surface 524) emits light. In FIG. 14, the hatched region B3 represents the light emitting region of the second lens portion 52a (first light emitting surface 524). Hereinafter, it will be referred to as a light emitting region B3.

Even when the second light source 22 other than the second light source 22a is turned on, the lights Ray2a, 2b, and 2c emitted by the second light source 22 follow the same optical path as described above (see FIG. 13), and the third lens unit 61 The second lens of the outer ring-shaped lens body 50 which emits light from the fourth lens portion 62 (second light source surface 624) arranged on both sides in the circumferential direction and is arranged adjacent to the outside of the third lens portion 61a. Light is emitted from the unit 52 (first light source surface 524).

As a result, as shown in FIG. 12, the fourth lens unit 62 (second light emitting surface 624) and the second lens unit 52 (first light emitting surface 524) emit light at the same time (equal surface light emission). In FIG. 12, the hatched region represents the light emitting region of the fourth lens unit 62 (second light emitting surface 624) and the second lens unit 52 (first light emitting surface 524). In this way, the fourth lens unit 62 (second light emitting surface 624) and the second lens unit 52 (first light emitting surface 524) emit light at the same time, so that the ring is wide in the radial direction (d1 + d2, see FIG. 12). A light emitting region is formed. This ring-shaped light emitting region is formed in amber color.

At that time, the light emitting regions B1 and B2 of the fourth lens unit 62a (second light emitting surface 624) and 62f (second light emitting surface 624) and the light emitting region B3 of the second lens unit 52a (first light emitting surface 524) are the same. It emits light with the brightness of.

This is because at least one of the shape and size of the second notch portion 611d is the light emitting regions B1, B2 and the second lens portion of the fourth lens portion 62a (second emission surface 624) and 62f (second emission surface 624). This is because the light emitting region B3 of the 52f (first light emitting surface 524) is adjusted to have the same brightness.

As described above, light is emitted from the outer ring-shaped lens body 50 (first light emitting surface 524 of the second lens unit 52) and from the inner ring-shaped lens body 60 (second light emitting surface 624 of the fourth lens unit 62). The emitted light further passes through the fisheye lens 70 and the grain lens 80 and is radiated forward. This realizes a turn lamp.

At that time, light is emitted from the outer ring-shaped lens body 50 (first light emitting surface 524 of the second lens unit 52) and from the inner ring-shaped lens body 60 (second light emitting surface 624 of the fourth lens unit 62). Light is diffused by the fisheye lens 70 and the grain lens 80.

As a result, a ring-shaped light emitting region wide in the radial direction (see the hatched region RA in FIG. 1) that emits uniform light (visible as if it emits uniform light) is formed. The ring-shaped light emitting region RA is formed in amber color. The fisheye lens 70 and the grain lens 80 are examples of the diffuser lens unit of the present invention.

Further, the light emitted from the slit S (miscellaneous light from the second light source 22) passes through the lens portion 81. As a result, the lens unit 81 emits light in amber color (it shines faintly). As a result, a new emission appearance is realized in which the plurality of radial lens portions 81 emit light in amber color against the background of the ring-shaped light emitting region RA.

As described above, according to the present embodiment, some of the light emitted by the first light source 21 other than the light Ray1a and 1b that enter the outer ring-shaped lens body 50 (first lens unit 51). A part of the optical Ray1c, that is, the optical Ray1c that has passed through the first notch 511d formed in the first lens portion 51, is an optical system other than the outer ring-shaped lens body 50 (first lens portion 51). For example, it can be used in the inner ring-shaped lens body 60 (fourth lens unit 62) arranged adjacent to the outer ring-shaped lens body 50 (first lens unit 51). That is, the inner ring-shaped lens body 60 (fourth lens portion 62) can be made to emit light by the light Ray1c that has passed through the first notch portion 511d formed in the first lens portion 51.

This is a first cutout portion 511d through which the other part of the light Ray1c emitted by the first light source 21 passes through the first light input portion 511 of the outer ring-shaped lens body 50 (first lens portion 51). This is due to the fact that the lens portion 62 (second light emitting surface 624) is provided so that the other part of the light Ray1c that has passed through the first notch portion 511d emits light.

Further, according to the present embodiment, a part of the light emitted by the second light source 22 that enters the inner ring-shaped lens body 60 (third lens unit 61), other than a part of the light Ray2a and 2b. The optical Ray2c, that is, the optical Ray2c that has passed through the second notch 611d formed in the third lens portion 61, is passed through an optical system other than the inner ring-shaped lens body 60 (third lens portion 61), for example. It can be used in the outer ring-shaped lens body 50 (second lens unit 52) arranged adjacent to the ring-shaped lens body 60 (third lens unit 61). That is, the inner ring-shaped lens body 60 (fourth lens portion 62) can be made to emit light by the light Ray 2c that has passed through the second notch portion 611d formed in the third lens portion 61.

This is a second notch portion 611d through which the light Ray2c of a part of the light emitted by the second light source 22 passes through the second light input portion 611 of the inner ring-shaped lens body 60 (third lens portion 61). This is due to the formation of the second lens portion 52 (first light emitting surface 524) through which the other part of the light Ray 2c that has passed through the second notch portion 611d emits light.

Further, according to the present embodiment, a plurality of lens bodies, that is, an outer ring-shaped lens body 50 (second lens unit 52) and an inner ring-shaped lens body 60 (fourth lens) are emitted by the light emitted by the first light source 21. The unit 62) can be made to emit light at the same time. Similarly, the light emitted by the second light source 22 simultaneously emits a plurality of lens bodies, that is, the inner ring-shaped lens body 60 (fourth lens unit 62) and the outer ring-shaped lens body 50 (second lens unit 52). Can be made to.

Further, according to the present embodiment, a plurality of lens bodies, that is, an outer ring-shaped lens body 50, are emitted by the light emitted by the first light source 21 without preparing a light source for each lens body as in Patent Document 1. Since the (second lens unit 52) and the inner ring-shaped lens body 60 (fourth lens unit 62) can simultaneously emit light, the number of light sources can be reduced as compared with Patent Document 1, and as a result, the cost can be reduced. It will be possible.

Similarly, without preparing a light source for each lens body as in Patent Document 1, a plurality of lens bodies, that is, an inner ring-shaped lens body 60 (fourth lens unit 62) is emitted by the light emitted by the second light source 22. ) And the outer ring-shaped lens body 50 (second lens unit 52) can emit light at the same time, so that the number of light sources can be reduced as compared with Patent Document 1, and as a result, the cost can be reduced.

Further, according to the present embodiment, a plurality of lens bodies, that is, an outer ring-shaped lens body 50 (second lens unit 52) and an inner ring-shaped lens body 60 (fourth lens) are emitted by the light emitted by the first light source 21. By simultaneously emitting light from the unit 62), it is possible to form a ring-shaped light emitting region wide in the radial direction (d1 + d2; see FIG. 12), although the number of light sources can be reduced.

Further, according to the present embodiment, the same ring-shaped light emitting region (see the hatched region in FIG. 12) is emitted in different forms depending on whether the first light source 21 is turned on or the second light source 22 is turned on. Can be made to.

For example, by lighting the first light source 21 with the first brightness, the same ring-shaped light emitting region (see the hatched region in FIG. 12) can be made to emit white light. Further, when the first light source 21 is turned on with the second brightness, the same ring-shaped light emitting area (see the hatching area in FIG. 12) is turned on with the first light source 21 with the second brightness. It can emit light in a darker white color. Further, by turning on the second light source 22, the same ring-shaped light emitting region (see the hatched region in FIG. 12) can be made to emit light in amber color.

Next, a modification will be described.

In the above embodiment, as shown in FIG. 3, an outer ring-shaped lens body 50 including the first lens unit 51 and the second lens unit 52 is used as the first lens body, and the third lens unit is used as the second lens body. An example using the outer ring-shaped lens body 50 including the 61 and the fourth lens portion 62 has been described, but the present invention is not limited to this.

For example, as shown in FIG. 15, the first linear lens body 50A including the first lens unit 51 and the second lens unit 52 is used as the first lens body, and the third lens unit 61 and the third lens unit 61 and the second lens body are used as the second lens body. A second linear ring-shaped lens body 60B including the fourth lens portion 62 may be used. FIG. 15 is a front view of the ring-shaped lens body 40 (modification example). In this case, a plurality of combinations of the first light source 21 and the first lens unit 51 are arranged in the direction in which the first linear lens body 50A extends, and the combination of the second light source 22 and the third lens unit 61. May be arranged in a plurality of directions in which the second linear lens body 60A extends.

Further, in the above embodiment, an example in which the first total reflection surface 512 of the first lens unit 51 is used has been described, but at least a part of the light emitted by the first light source 21 is transmitted through the first total reflection surface 512. A transmission surface (for example, a plane orthogonal to the optical axis AX _21a of the first light source 21a) may be included. By doing so, it is possible to suppress the region corresponding to the first lens portion 51 of the ring-shaped light emitting region (see the hatched region in FIG. 12) from becoming relatively dark.

Similarly, in the above embodiment, an example in which the second total reflection surface 612 of the third lens unit 61 is used has been described, but at least a part of the light emitted by the second light source 22 is transmitted through the second total reflection surface 612. It may include a transmission surface (for example, a plane orthogonal to the optical axis AX _22a of the second light source 22a). By doing so, it is possible to suppress the region corresponding to the third lens portion 61 of the ring-shaped light emitting region (see the hatched region in FIG. 12) from becoming relatively dark.

Further, in the above embodiment, an example in which one first notch portion 511d is formed in the first light receiving portion 511 as the notch portion has been described, but the present invention is not limited to this. For example, a plurality of first notch portions 511d may be formed in the first light input portion 511. Further, the first notch portion 511d is not limited to a part of the first light input portion 511, and may be formed over the entire circumference.

Similarly, in the above embodiment, an example in which one second notch portion 611d is formed in the second light receiving portion 611 as the notch portion has been described, but the present invention is not limited to this. For example, a plurality of second notch portions 611d may be formed in the second light input portion 611. Further, the second notch portion 611d is not limited to a part of the second light receiving portion 611, and may be formed over the entire circumference.

Further, in the above embodiment, an example in which the vehicle lamp of the present invention is applied to a vehicle signal lamp that functions as a DRL lamp, a position lamp, and a turn lamp has been described, but the present invention is not limited to this. For example, the vehicle lighting equipment of the present invention may be applied to a vehicle signal lighting equipment that functions as two lamps of a DRL lamp, a position lamp, and a turn lamp. Further, the vehicle lighting equipment of the present invention may also be applied to a vehicle signal lighting equipment that functions as at least two lamps of a tail lamp, a stop lamp, and a turn lamp.

All of the numerical values shown in the above embodiments are examples, and it goes without saying that appropriate numerical values different from these can be used.

Each of the above embodiments is merely an example in every respect. The present invention is not limitedly construed by the description of each of the above embodiments. The present invention can be practiced in various other forms without departing from its spirit or key features.

10 ... Vehicle lighting tool 21 (21a to 21f) ... First light source 22 (22a to 22f) ... Second light source 30 ... Light source mounting substrate 40 ... Ring-shaped lens body 50 ... Outer ring-shaped lens body 51 (51a to 51f) ... 1st lens unit 52 (52a to 52f) ... 2nd lens unit 60 ... Inner ring-shaped lens body 61 (61a to 61f) ... 3rd lens unit 62 (62a to 62f) ... 4th lens unit 70 ... Fisheye lens 80 ... Shibo lens 90 ... Housing 91 ... Cylindrical part 511 ... First light input part 511a ... Central light input surface 511b ... Ambient light incoming surface 511c ... Circumferential reflection surface 511d ... First notch 512 ... First total reflection surface 512a, 512b ... Total reflection Surface 521 ... First individual reflecting surface 522 ... Second individual reflecting surface 523 ... Flat surface 524 ... First light emitting surface 611 ... Second light entering portion 611a ... Central light entering surface 611b ... Ambient light entering surface 611c ... Surrounding reflecting surface 611d ... 2nd notch 612 ... 2nd total reflective surface 612a, 612b ... Total reflective surface 621 ... 1st individual reflective surface 622 ... 2nd individual reflective surface 623 ... Flat surface 624 ... 2nd light emitting surface A1 to A3 ... Light emitting region B1 -B3 ... Light emitting region F _511a ... Focus F _611a ... Focus RA ... Light emitting region

Claims (7)

Light source and
An input portion in which a part of the light emitted by the light source enters, and a notch portion through which the other part of the light emitted by the light source passes is formed. A lens body that controls a part of the light that enters from the light input unit, and
A vehicle lamp comprising an optical system for controlling the other part of the light that has passed through the notch. With the first light source
With the second light source
The first light input section to which a part of the light emitted by the first light source enters, and the first notch portion through which the other part of the light emitted by the first light source passes. The first lens unit including the first light input section formed by the above, the first lens section including the first total reflection surface that totally reflects the part of the light received from the first light entry section, and the first total reflection surface. A second lens unit including a first light emitting surface from which a part of the reflected light is emitted, and a first lens body including the first light emitting surface.
A second light input section through which a part of the light emitted by the second light source enters, and a second notch portion through which the other part of the light emitted by the second light source passes. A third lens unit including a second light input section formed by the above, a second total reflection surface that totally reflects the part of the light received from the second light input section, and the second total reflection surface. A fourth lens unit including a second light emitting surface from which the reflected partial light is emitted, and a second lens body including the second light emitting surface are provided.
Of the light emitted by the first light source, the other part of the light that has passed through the first notch portion enters the fourth lens portion and emits light from the second light emitting surface. The lens portion is arranged adjacent to the fourth lens portion, and the first notch portion is formed on the fourth lens portion side of the first lens portion.
The third of the light emitted by the second light source so that the other part of the light that has passed through the second notch enters the second lens and emits light from the first light emitting surface. The vehicle lamp according to claim 1, wherein the lens portion is arranged adjacent to the second lens portion, and the second notch portion is formed on the second lens portion side of the third lens portion. .. The vehicle lamp according to claim 2, wherein the emission color of the first light source and the emission color of the second light source are different from each other. The first lens body is an outer ring-shaped lens body including the first lens portion and the second lens portion.
A plurality of combinations of the first light source and the first lens portion are arranged in the circumferential direction of the outer ring-shaped lens body.
The second lens portion is arranged between the first lens portions adjacent to each other.
The second lens body is an inner ring-shaped lens body including the third lens portion and the fourth lens portion.
A plurality of combinations of the second light source and the third lens portion are arranged in the circumferential direction of the inner ring-shaped lens body.
The vehicle lamp according to claim 2 or 3, wherein the fourth lens portion is arranged between the third lens portions adjacent to each other. The first lens body is a first linear lens body that includes the first lens portion and the second lens portion and extends linearly.
A plurality of combinations of the first light source and the first lens portion are arranged in the direction in which the first linear lens body extends.
The second lens portion is arranged between the first lens portions adjacent to each other.
The second lens body is a second linear lens body including the third lens portion and the fourth lens portion and extending linearly.
A plurality of combinations of the second light source and the third lens portion are arranged in the direction in which the second linear lens body extends.
The vehicle lamp according to claim 2 or 3, wherein the fourth lens portion is arranged between the third lens portions adjacent to each other. The first total reflection surface includes a transmission surface through which at least a part of the light emitted by the first light source is transmitted.
The second total reflection surface includes a transmission surface through which at least a part of the light emitted by the second light source is transmitted.
moreover,
The vehicle lamp according to any one of claims 2 to 5, further comprising a diffuser lens portion that covers the first light emitting surface, the second light emitting surface, the first total reflection surface, and the second total reflection surface. It is an incoming light portion in which a part of the light emitted by the light source enters, and includes an incoming light portion in which a notch portion through which the other part of the light emitted by the light source passes is formed. , A lens body that controls a part of the light that enters from the light input unit.

Images