JP2021034340A - Identification lamp for vehicle - Google Patents

Abstract

To provide an identification lamp for vehicle that can widen a range in which light is emitted and viewed.SOLUTION: An identification lamp 1 for vehicle comprises a light source part 32 which emits light, a lens 50 which has an incidence part 50i, a first emission part 61, a second emission part 62, and a first internal reflection part 55 and is arranged on an emission-directional side of the light from the light source part 32, and a reflector 70 which has a first reflection part 81. The incidence part 50i crosses an optical axis 32a of the light source part 32, and the first emission part 61 crosses the optical axis 32a to emit a first portion of light impinging on the incidence part 50i to the emission-directional side. Further, the first internal reflection part 55 internally reflects a second portion of the light impinging on the incidence part 50i away from the optical axis 32a, and the second emission part 62 emits at least part of the light internally reflected by the first internal reflection part 55 away from the optical axis 32a. The first reflection part 81 is positioned around the lens 50 and emits at least part of the light emitted from the second emission part 62 to the emission-directional side.SELECTED DRAWING: Figure 2

Description

The present invention relates to a vehicle indicator light.

As a vehicle indicator light, for example, a tail lamp or a stop lamp provided at the rear of the vehicle is known. The following Patent Document 1 discloses a vehicle indicator lamp that can be used as a tail lamp or a stop lamp.

The vehicle indicator lamp described in Patent Document 1 below includes a light source and a lens for irradiating the light emitted from the light source with a required light distribution. The lens of the vehicle indicator light has a front irradiation area that irradiates a part of the light emitted from the light source toward the front along the optical axis of the vehicle indicator light, and a light source located around the front irradiation area. It is provided with a side irradiation area that irradiates another part of the light emitted from the vehicle toward the side of the vehicle indicator light. Therefore, it is said that the vehicle indicator light of Patent Document 1 below can irradiate light in a direction and a side along the optical axis.

Japanese Unexamined Patent Publication No. 2010-199053

However, in the vehicle indicator lamp of Patent Document 1, the portion that appears to shine when irradiated with light, that is, the portion that appears to emit light in the vehicle indicator lamp is mainly in the front irradiation region and the side irradiation region of the lens. is there. Therefore, in order to improve the alerting ability and the like, there is a request to widen the visible range of light emission in the vehicle indicator light.

Therefore, an object of the present invention is to provide a vehicle indicator light capable of widening the visible range of light emission.

In order to achieve the above object, the vehicle indicator lamp of the present invention has a light source unit that emits light, an incident unit, a first emission unit, a second emission unit, and a first internal reflection unit, and the light source unit. A lens arranged on the emission direction side of the light from the light source and a reflector having a first reflecting portion are provided, the incident portion intersects the optical axis of the light source portion, and the incident portion emits light from the light source portion. The light is incident, the first emitting portion intersects the optical axis, and the first portion of the light incident on the incident portion is emitted toward the emitting direction side, and the first internal reflecting portion is directed to the incident portion. The second portion of the incident light is internally reflected in a direction away from the optical axis, and the second exit portion emits at least a part of the light internally reflected by the first internal reflection portion in a direction away from the optical axis. Then, the first reflecting portion is located around the lens when the reflector is viewed from the emitting direction side along the optical axis, and at least a part of the light emitted from the second emitting portion is emitted. It is characterized by reflecting in the direction side.

In this vehicle indicator light, the incident portion of the lens intersects the optical axis of the light source portion, and the first exit portion of the lens intersects the optical axis of the light source portion and the first portion of the light incident on the incident portion is emitted from the light source portion. It emits light in the direction of emission. For this reason, most of the light emitted from the first exit portion of the lens is light that is incident from the incident portion and is directly emitted without internal reflection. Further, in this vehicle indicator light, the second portion of the light incident on the incident portion is internally reflected by the first internal reflection portion in a direction away from the optical axis, and at least the light reflected by the first internal reflection portion is reflected. A part of the light is emitted from the second exit portion in a direction away from the optical axis. In this way, at least a part of the light internally reflected by the lens and emitted from the second emitting portion is reflected by the first reflecting portion toward the emission direction side of the light from the light source portion. Therefore, the parts that appear to emit light in the vehicle indicator light are the first emission portion and the second emission portion of the lens and the first reflection portion of the reflector. Therefore, this vehicle indicator light can have a wider visible range of light emission as compared with the case where the reflector that reflects the light emitted from the lens is not provided.

The lens has a second internal reflection portion that internally reflects a third portion of light incident on the incident portion in a direction away from the optical axis, and at least a part of the light internally reflected by the second internal reflection portion. The third emitting portion further has a third emitting portion that emits in a direction away from the optical axis, the third emitting portion is located on the emission direction side from the second emitting portion in a direction parallel to the optical axis, and the reflector is The second reflecting portion further includes a second reflecting portion that reflects at least a part of the light emitted from the third emitting portion toward the emitting direction side, and the second reflecting portion moves the reflector along the optical axis in the emitting direction. When viewed from the side, it may be located on the outer peripheral side with respect to the optical axis from the first reflecting portion.

In this vehicle indicator light, the third exit portion of the lens and the second reflection portion of the reflector appear to emit more light. Therefore, this vehicle indicator light can emit light and have a wider visible range. Further, in this vehicle indicator light, when the reflector is viewed from the emission direction side of the light from the light source unit along the optical axis, the light emitted from the third exit portion crosses the first reflection portion of the reflector. 2 It may be incident on the reflecting part. However, as described above, the third emission unit is located on the emission direction side of the light from the light source unit from the second emission unit in the direction parallel to the optical axis. Therefore, in this vehicle indicator light, even in the above case, it is possible to suppress the light emitted from the third emitting portion from being blocked by the first reflecting portion, and the light can be suppressed to the second reflecting portion. It can be effectively irradiated and the second reflector can be made to appear brighter.

The lens further has a fourth emitting portion that emits a fourth portion of light incident on the incident portion toward the emitting direction side, and when the lens is viewed from the emitting direction side along the optical axis, the lens has a fourth emitting portion. At least a part of the first internal reflection portion may be located between the first emission portion and the fourth emission portion.

In this vehicle indicator light, the fourth exit portion of the lens appears to emit more light. Further, in this vehicle indicator light, when the lens is viewed from the light emitting direction side from the light source portion along the optical axis, at least a part of the first internal reflecting portion is the first emitting portion and the fourth emitting portion. Located between and. Here, the first internal reflection portion that internally reflects light looks darker than the portion of the lens that emits light. Therefore, the vehicle indicator light can make the first internal reflection portion, which looks dark like this, less noticeable.

The reflector further has a third reflecting portion that reflects a part of the light emitted from the second emitting portion toward the emitting direction side, and the third reflecting portion moves the reflector along the optical axis. When viewed from the emission direction side, it may be located between the first reflecting portion and the lens.

In this vehicle indicator light, the third reflecting portion of the reflector appears to emit more light. Further, the third reflecting unit is located between the first reflecting unit and the lens when the reflector is viewed from the light emitting direction side from the light source unit along the optical axis. Therefore, in this vehicle indicator light, the first emitting portion and the second emitting portion of the lens and the first reflecting portion of the reflector emit light integrally as compared with the case where the reflector does not have the third reflecting portion. Can be made to look like.

When the lens is viewed from the emission direction side along the optical axis, the shape of the first internal reflection portion is substantially U-shaped, and when the reflector is viewed from the emission direction side along the optical axis. The shape of the first reflecting portion in the above may be substantially U-shaped.

In this vehicle indicator light, the visible range of light emission can be widened laterally and downward as compared with the case where the reflector that reflects the light emitted from the lens is not provided.

The light source unit has a first light emitting unit and a second light emitting unit, emits light from the first light emitting unit or the second light emitting unit, and the second light emitting unit uses the light source unit as the optical axis. When viewed from the emission direction side along the line, the light source unit is arranged around the first light emitting unit, and the light source unit emits light from the second light emitting unit with respect to the total amount of light incident on the incident unit. The ratio of the total amount of light reflected by the first reflecting unit may be larger than the ratio when the light source unit emits light from the first light emitting unit.

This vehicle indicator light can emit light brighter around the lens when the light source unit emits light from the second light emitting unit than when the light source unit emits light from the first light emitting unit. You can make the indicator light look bigger. Therefore, according to this vehicle indicator lamp, for example, a state in which the light source unit emits light from the first light emitting unit is a tail lamp, and a state in which the light source unit emits light from a second light emitting unit is a brake lamp. It can be a combination lamp. Further, according to this vehicle indicator lamp, it is possible to improve the alerting ability when functioning as a brake lamp.

As described above, according to the present invention, it is possible to provide a vehicle indicator light capable of widening the visible range of light emission.

It is a front view which shows typically the vehicle indicator light in embodiment of this invention. It is sectional drawing of the vehicle indicator light in line II-II of FIG. It is an exploded perspective view of the lamp unit shown in FIG. It is a front view which shows typically the light source part shown in FIG. It is sectional drawing of the vehicle indicator light in the VV line of FIG. FIG. 2 is an enlarged view showing a portion including a lens in FIG. 2. FIG. 5 is a front view schematically showing the lens shown in FIG.

Hereinafter, a mode for carrying out the vehicle indicator light according to the present invention will be illustrated together with the attached drawings. The embodiments illustrated below are for facilitating the understanding of the present invention, and are not for limiting the interpretation of the present invention. The present invention can be modified or improved from the following embodiments without departing from the spirit of the present invention. In the drawings referred to below, in order to facilitate understanding, the dimensions of each member may be changed or the reference reference numerals may be omitted.

FIG. 1 is a front view schematically showing a vehicle indicator light according to an embodiment of the present invention, and is a view of the vehicle indicator light viewed from the rear side. FIG. 2 is a cross-sectional view of the vehicle indicator light in line II-II of FIG. 1, and is a horizontal sectional view of the vehicle indicator light. The vehicle indicator lamp 1 of the present embodiment is a rear combination lamp for a motorcycle having a function as a tail lamp and a function as a stop lamp. As shown in FIGS. 1 and 2, the vehicle indicator lamp 1 includes a housing 10 and a lamp unit 20 as a main configuration.

The housing 10 of the present embodiment mainly includes a plate-shaped base portion 11 and a box-shaped cover 12 that is translucent and is long in the left-right direction and has an opening formed rearward. .. The cover 12 is fixed to the base portion 11 so that the opening behind the cover 12 is closed. A through hole 11H penetrating in the front-rear direction is formed substantially in the center of the base portion 11 in the left-right direction. The space formed by the base portion 11 and the cover 12 is a lamp chamber R, and a part of the lamp unit 20 is housed in the lamp chamber R.

As shown in FIG. 2, the lamp unit 20 of the present embodiment includes a light source unit 30, a lens 50, and a reflector 70 as main configurations.

FIG. 3 is an exploded perspective view of the lamp unit 20 shown in FIG. 1, which is an exploded perspective view of the lamp unit 20 viewed from diagonally upward rearward. As shown in FIGS. 2 and 3, the light source unit 30 of the present embodiment includes a socket housing 31 and a light source unit 32 as main configurations. The socket housing 31 has a substantially columnar pedestal portion 33 extending in the front-rear direction, a substantially disc-shaped flange 34 connected to the front end portion of the pedestal portion, and extending forward from the front side surface of the flange 34. It has a plurality of heat radiating fins 35. A locking rib 36 extending in the circumferential direction is formed on the outer peripheral surface of the pedestal portion 33. Further, the rear end surface of the pedestal portion 33 is a flat surface, and the light source portion 32 described later is placed on the end surface. Further, a plurality of wall portions 37 projecting rearward along the outer peripheral surface of the pedestal portion 33 are formed on the outer edge portion on the rear end surface of the pedestal portion 33, and the light source portion 32 is surrounded by these wall portions 37. The outer surface of the wall portion 37 is an arcuate surface continuous with the outer peripheral surface of the pedestal portion 33. Further, a plurality of locking projections 38 projecting outward are formed on the outer peripheral surface of the pedestal portion 33 on the rear side of the locking rib 36, and these locking projections 38 are connected to the outer peripheral surface of the wall portion 37. doing. That is, the locking projection 38 is formed from the outer peripheral surface of the pedestal portion 33 to the outer peripheral surface of the wall portion 37. The locking projection 38 and the locking rib 36 are separated from each other at a predetermined distance.

FIG. 4 is a front view schematically showing the light source unit 32 shown in FIG. 2, and is a view of the light source unit 32 viewed from the rear side. The light source unit 32 of the present embodiment includes a first light emitting unit 41, a second light emitting unit 42, a circuit board 43 having a substantially quadrangular front view shape, and a lens unit 44, and emits light to the rear side. To do. Therefore, it can be understood that the light emitting direction side from the light source unit 32 with respect to the light source unit 32 is the rear side. In this embodiment, the light source unit 32 emits light substantially radially. Therefore, the light emitting direction of the light source unit 32 includes a direction along the optical axis 32a of the light source unit 32 and a direction inclined with respect to the optical axis 32a. The light emitting direction side from the light source unit 32 also includes a direction side of the light source unit 32 along the optical axis 32a and a direction side inclined with respect to the optical axis 32a.

The first light emitting unit 41 is composed of one light emitting element that emits light, and in the present embodiment, it is a surface mount type LED (Light Emitting Diode) that emits red light with a substantially square emitting surface that emits light. LED. The light emitting element, which is the first light emitting unit 41, is mounted in a substantially central portion of the circuit board 43. The second light emitting unit 42 includes a plurality of light emitting elements 45 that emit light. Similar to the first light emitting unit 41, these plurality of light emitting elements 45 are surface mount type LEDs that emit red light with a substantially quadrangular exit surface that emits light. These plurality of light emitting elements 45 are mounted on the circuit board 43 in a state of being separated from the circumference of the first light emitting unit 41 at substantially equal intervals in the circumferential direction centered on the first light emitting unit 41. The lens unit 44 is a translucent member that covers the first light emitting unit 41 and the second light emitting unit 42, and is fixed to the circuit board 43. The lens portion 44 is formed in a substantially hemispherical shape that is convex on the side opposite to the circuit board 43 side. Such a light source unit 32 is attached to the socket housing 31 by mounting the circuit board 43 on the rear end surface of the pedestal portion 33 and fixing it to the pedestal portion 33, and emits light to the rear side.

In the light source unit 32, the light emitted from the first light emitting unit 41 and the second light emitting unit 42 passes through the lens unit 44 and is emitted from the light source unit 32. Further, the optical axis 32a of the light source unit 32 extends in a direction substantially perpendicular to the circuit board 43, and intersects with the first light emitting unit 41 when the circuit board 43 is viewed in a plan view. Therefore, it can be understood that the second light emitting unit 42 is arranged around the first light emitting unit 41 when the light source unit 32 is viewed from the rear side along the optical axis 32a. Further, the light source unit 32 emits light from the first light emitting unit 41 or the second light emitting unit 42. Specifically, the light source unit 32 emits light only from the first light emitting unit 41 when the vehicle indicator light 1 functions as a tail lamp, and the second light emission when the vehicle indicator light 1 functions as a stop lamp. Light is emitted only from the unit 42. Further, the total luminous flux amount of the light emitted from the second light emitting unit 42 is larger than the total luminous flux amount of the light emitted from the first light emitting unit 41. The optical axis 32a of the light source unit 32 is an optical axis when light is emitted from the first light emitting unit 41 and the second light emitting unit 42. In the present embodiment, the optical axis 32a substantially coincides with the optical axis when light is emitted only from the first light emitting unit 41 and the optical axis when light is emitted only from the second light emitting unit 42.

Such a light source unit 30 is attached to the base portion 11 as shown in FIG. Specifically, the pedestal portion 33 of the socket housing 31 is inserted into the through hole 11H of the base portion 11 from the front. Then, the peripheral edge of the through hole 11H in the base portion 11 is positioned between the locking rib 36 of the pedestal portion 33 and the locking projection 38, so that the socket housing 31 is locked to the base portion 11 and the light source unit. 30 is attached to the base portion 11. In a state where the light source unit 30 is attached to the base portion 11, the optical axis 32a of the light source portion 32 is substantially horizontal and extends rearward.

FIG. 5 is a cross-sectional view of the vehicle indicator light 1 on the VV line of FIG. 1, which is a vertical sectional view of the vehicle indicator light 1 passing through the optical axis 32a of the light source unit 32. FIG. 6 is an enlarged view showing a portion including the lens 50 in FIG. 2, and is a diagram showing a part of a horizontal cross section of the vehicle indicator light 1 passing through the optical axis 32a of the light source unit 32. In FIG. 6, the description of the housing 10 and the socket housing 31 in the light source unit 30 is omitted. FIG. 7 is a front view schematically showing the lens 50 shown in FIG. 1, and is a view of the lens 50 viewed from the rear side along the optical axis 32a of the light source unit 32. As shown in FIGS. 5, 6 and 7, the lens 50 of the present embodiment has a main body portion 50a and a flange 50b. The lens 50 is arranged behind the light source unit 32 so that the optical axis 32a of the light source unit 32 passes through the main body unit 50a. Therefore, it can be understood that the lens 50 is arranged on the emission direction side of the light from the light source unit 32. The shape of the main body 50a in the cross section passing through the optical axis 32a is generally M-shaped. The flange 50b is a member that projects in a direction substantially perpendicular to the optical axis 32a from the entire circumference of the front end portion on the outer peripheral surface of the main body portion 50a with respect to the optical axis 32a. When the lens 50 is viewed from the front side along the optical axis 32a of the light source unit 32, the outer shape of the flange 50b is substantially circular with the optical axis 32a as the center. A mounting portion 50c is provided on each of the right side portion and the left side portion of the flange 50b. Each mounting portion 50c is formed with two through holes 50H penetrating in a direction substantially parallel to the optical axis 32a.

In the present embodiment, the main body portion 50a has an incident portion 50i and a third internal reflection portion 57 on a front surface on the light source portion 32 side. Further, the main body portion 50a has a first internal reflection portion 55, a second internal reflection portion 56, a first emission portion 61, and a second emission portion 62 on a surface on the rear side opposite to the light source portion 32 side. And a third light source unit 63 and a fourth light source unit 64.

The incident portion 50i is a portion where the light emitted from the light source unit 32 is incident at the intersection with the optical axis 32a of the light source unit 32. In the present embodiment, the incident portion 50i includes a first incident portion 51 and a second incident portion 52, and a part of the light emitted from the light source unit 32 is incident on the first incident portion 51, and the second incident portion 52 Another part of the light emitted from the light source unit 32 is incident on the light source unit 32. The first incident portion 51 intersects the optical axis 32a of the light source unit 32, and the shape of the first incident portion 51 when the lens 50 is viewed from the front side along the optical axis 32a of the light source unit 32 is the optical axis 32a. It is generally circular around. Further, the central portion of the first incident portion 51 is recessed in a conical shape on the rear side, and the apex 51a of the recess is located on the optical axis 32a. Further, with reference to the straight line connecting the apex 51a and the outer edge 51e of the recess, the space between the apex 51a and the outer edge 51e in the first incident portion 51 is curved in a convex shape toward the front side. The apex 51a of the recess does not have to be located on the optical axis 32a. Further, the first incident portion 51 does not have to be curved in this way, and may be curved in a convex shape toward the rear side. Further, the central portion of the first incident portion 51 may or may not be recessed in a polygonal pyramid shape.

The second incident portion 52 extends from the entire circumference of the outer edge 51e of the first incident portion 51 toward the front side so as to be separated from the optical axis 32a of the light source unit 32. Therefore, the second incident portion 52 is located around the first incident portion 51 when the lens 50 is viewed from the front side along the optical axis 32a of the light source unit 32, and the second incident portion 52 is located in the vicinity of the first incident portion 51. The shape of the two incident portions 52 is substantially annular around the optical axis 32a. Further, the second incident portion 52 is connected to the first incident portion 51, and a part of the second incident portion 52 is located on the front side of the first incident portion 51 in the direction parallel to the optical axis 32a. ing. The outer edge 51e of the first incident portion 51, which is the edge of the second incident portion 52 on the side of the first incident portion 51, and the outer edge 52e of the second incident portion 52, which is the edge opposite to the side of the first incident portion 51, are connected. With reference to a straight line, the space between the outer edge 51e and the outer edge 52e of the second incident portion 52 may be curved in a convex shape toward the rear side. Further, the second incident portion 52 may be curved in a convex shape toward the front side, and may not be curved in this way.

The third internal reflection unit 57 is a portion that internally reflects a part of the light emitted from the light source unit 32 and incident on the incident unit 50i toward the emission direction side of the light from the light source unit 32. In the present embodiment, the third internal reflection unit 57 internally reflects at least a part of the light incident on the second incident unit 52 in the incident unit 50i toward the rear side. Further, the third internal reflection portion 57 extends from the second incident portion 52 on the outer peripheral side with respect to the optical axis 32a so as to be separated from the optical axis 32a toward the rear side. Therefore, the third internal reflection unit 57 is located around the second incident unit 52 when the lens 50 is viewed from the front side along the optical axis 32a of the light source unit 32. Further, the shape of the third internal reflection portion 57 when viewed in this way is generally an annular shape centered on the optical axis 32a. The third internal reflection unit 57 may internally reflect the light incident on the first incident unit 51 toward the rear side.

The first internal reflection unit 55 is a portion that internally reflects a part of the light emitted from the light source unit 32 and incident on the incident unit 50i in the direction away from the optical axis 32a. In the present embodiment, the first internal reflection unit 55 internally reflects a part of the light incident from the second incident unit 52 in the incident unit 50i and internally reflected by the third internal reflection unit 57 in the direction away from the optical axis 32a. To do. Further, as shown in FIG. 7, the first internal reflection portion 55 is located around the first emission portion 61, which will be described later, when the lens 50 is viewed from the rear side along the optical axis 32a. Further, the shape of the first internal reflection portion 55 when viewed in this way is substantially U-shaped. Further, as shown in FIG. 6, the first internal reflection portion 55 extends toward the rear side so as to be separated from the optical axis 32a. The first internal reflection unit 55 may internally reflect a part of the light incident from the first incident unit 51 and internally reflected by the third internal reflection unit 57 in a direction away from the optical axis 32a.

The second internal reflection unit 56 is a portion that internally reflects a part of the light emitted from the light source unit 32 and incident on the incident unit 50i in the direction away from the optical axis 32a. In the present embodiment, the second internal reflection unit 56 internally reflects a part of the light incident on the second incident unit 52 in the incident unit 50i and internally reflected by the third internal reflection unit 57 in the direction away from the optical axis 32a. To do. Further, as shown in FIG. 7, when the lens 50 is viewed from the rear side along the optical axis 32a, the second internal reflection portion 56 is left and right on the outer peripheral side with respect to the optical axis 32a from the first internal reflection portion 55. Located in. Further, as shown in FIG. 6, the second internal reflection portion 56 is located on the rear side of the first internal reflection portion 55 in the direction parallel to the optical axis 32a, and is separated from the optical axis 32a toward the rear side. It is postponed. Further, the second internal reflection unit 56 is connected to the first internal reflection unit 55. The second internal reflection unit 56 may internally reflect a part of the light incident from the first incident unit 51 and internally reflected by the third internal reflection unit 57 in a direction away from the optical axis 32a.

The first emitting unit 61 is a portion that intersects with the optical axis 32a and emits a part of the light emitted from the light source unit 32 and incident on the incident unit 50i toward the emission direction side of the light from the light source unit 32. In the present embodiment, the first emitting unit 61 emits a part of the light incident on the first incident unit 51 in the incident unit 50i to the rear side. Here, as described above, the first internal reflection portion 55 is located around the first exit portion 61 when the lens 50 is viewed from the rear side along the optical axis 32a, and the first in the case of viewing in this way. The shape of the internal reflection portion 55 is substantially U-shaped. The central portion of the first exit portion 61 is sandwiched by the first internal reflection portion 55 in the left-right direction, and this central portion intersects the optical axis 32a. Further, the upper portion of the first emitting portion 61 is not sandwiched by the first internal reflecting portion 55 in the left-right direction. That is, when viewed in this way, the first emitting unit 61 has a central portion sandwiched by the first internal reflecting portion 55 in the left-right direction and an upper portion not sandwiched by the first internal reflecting portion 55 in the left-right direction. Understandable. Further, the first exit portion 61 is composed of a plurality of fisheye lenses that are convexly curved toward the rear side. The first exit portion 61 may be a single curved surface or a flat surface, and may be, for example, a single curved surface that is convexly curved toward the rear side.

The second emission unit 62 is a portion that emits a part of the light internally reflected by the first internal reflection unit 55 in a direction away from the optical axis 32a. As shown in FIG. 7, in the present embodiment, the second exit unit 62 has an optical axis from the first internal reflection unit 55 and the second internal reflection unit 56 when the lens 50 is viewed from the rear side along the optical axis 32a. It is located on the outer peripheral side with respect to 32a. Further, the second exit portion 62 is composed of a plurality of curved surfaces arranged in parallel in the circumferential direction with respect to the optical axis 32a, and these curved surfaces are curved in a concave shape toward the optical axis 32a side. The second exit portion 62 may have a single curved surface. Further, as shown in FIGS. 5 and 6, the second exit portion 62 extends so as to approach the optical axis 32a toward the rear side.

The third emission unit 63 is a portion that emits another part of the light internally reflected by the second internal reflection unit 56 in a direction away from the optical axis 32a. As shown in FIG. 7, in the present embodiment, when the lens 50 is viewed from the rear side along the optical axis 32a, the third exit unit 63 is located on the outer peripheral side of the second internal reflection unit 56 with reference to the optical axis 32a. Located in. Further, as shown in FIG. 6, the third exit portion 63 is located on the rear side of the second exit portion 62 in the direction parallel to the optical axis 32a, and extends toward the rear side so as to approach the optical axis 32a. doing. Further, the third exit portion 63 is composed of a single curved surface that is convexly curved toward the side opposite to the optical axis 32a side. The third exit unit 63 is composed of a plurality of curved surfaces arranged in parallel in the circumferential direction with respect to the optical axis 32a as in the second emission unit 62, and these curved surfaces are convex toward the optical axis 32a side. It may be curved to.

The fourth emitting unit 64 is a portion that emits a part of the light emitted from the light source unit 32 and incident on the incident unit 50i to the rear side. In the present embodiment, a part of the light incident on the second incident portion 52 in the incident portion 50i and internally reflected by the third internal reflecting portion 57 is emitted to the rear side. Further, as shown in FIG. 7, when the lens 50 is viewed from the rear side along the optical axis 32a, the fourth exit unit 64 is located on the outer peripheral side with respect to the optical axis 32a from the first exit unit 61. Further, the fourth exit portion 64 is composed of a plurality of fisheye lenses that are convexly curved toward the rear side, and these fisheye lenses are arranged in parallel in the circumferential direction with respect to the optical axis 32a. Further, when viewed in this way, a part of the first internal reflection portion 55 is located between the first emission portion 61 and the fourth emission portion 64, and the second internal reflection portion 56 crosses the fourth emission portion 64. ing. Further, as shown in FIG. 5, the fourth emitting unit 64 is located on the rear side of the first emitting unit 61 in the direction parallel to the optical axis 32a.

The reflector 70 is a member that reflects a part of the light emitted from the lens 50. In the present embodiment, as shown in FIGS. 2, 3 and 5, the reflector 70 has a base portion 71 and a frame portion 72, and is fixed to the housing 10 by a configuration (not shown). The base portion 71 is a plate-shaped member extending in a direction substantially perpendicular to the optical axis 32a. The shape of the base portion 71 viewed from the rear side along the optical axis 32a is a substantially rectangular shape that is long in the left-right direction. A through hole 71H penetrating in a direction substantially parallel to the optical axis 32a is formed in the central portion of the base portion 71, and the main body portion 50a of the lens 50 is inserted into the through hole 71H from the front side. Further, on the peripheral edge of the through hole 71H in the base portion 71, two bosses 73 that are substantially parallel to the optical axis 32a and project to the front side are provided. These bosses 73 correspond to the attachment portion 50c of the lens 50, and the front end surface of the boss 73 and the rear side surface of the attachment portion 50c are in contact with each other. Each of the bosses 73 is formed with a screw hole extending from the front end face to the rear side. The lens 50 is fixed to the reflector 70 by screwing a bolt (not shown) inserted into the through hole 50H of the mounting portion 50c into the screw hole. In the state where the lens 50 is fixed to the reflector 70 in this way, a part of the second exit portion 62 of the lens 50 and the third exit portion 63 are located on the rear side of the base portion 71. The lens 50 may be fixed to the reflector 70 with an adhesive or the like.

The frame portion 72 is a tubular member extending in a direction substantially parallel to the optical axis 32a. The frame portion 72 surrounds the base portion 71, and the entire circumference of the outer edge of the base portion 71 is connected to the inner peripheral surface of the frame portion 72.

In the present embodiment, the base portion 71 and the frame portion 72 are integrally formed. Further, the surface on the rear side of the base portion 71, the surface on the inner peripheral surface of the frame portion 72 on the rear side of the portion connected to the base portion 71, the rear end surface of the frame portion 72, and the outer peripheral surface of the frame portion 72 are made of metal. It is a reflective surface that reflects light that has been mirror-processed by vapor deposition or the like. As shown in FIG. 1, a plurality of ribs 74 extending in the front-rear direction are provided on the outer peripheral surface of the frame portion 72. These ribs 74 are arranged in parallel in the circumferential direction at predetermined intervals over the entire circumference of the frame portion 72. In addition, in FIG. 3, the description of the rib 74 is omitted in order to prevent the figure from becoming complicated. Further, the base portion 71 has a first reflecting portion 81, a second reflecting portion 82, and a third reflecting portion 83 on the rear side surface which is thus regarded as a reflecting surface.

The first reflecting unit 81 is located around the lens 50 when the reflector 70 is viewed from the light emitting direction side of the light source unit 32 along the optical axis 32a of the light source unit 32, and the second reflecting unit 62 of the lens 50. This is a portion where at least a part of the light emitted from the light source unit 32 is reflected toward the emission direction side of the light from the light source unit 32. In the present embodiment, the first reflecting unit 81 emits at least a part of the light emitted from the second emitting unit 62 of the lens 50 to the rear side. Further, as shown in FIG. 1, the shape of the first reflecting portion 81 when the lens 50 is viewed from the rear side along the optical axis 32a is substantially U-shaped, and the first reflecting portion 81 is thus described. When viewing, it surrounds both the left and right sides of the lens 50 and below. Further, as shown in FIGS. 2 and 5, the first reflecting portion 81 extends toward the rear side so as to be separated from the optical axis 32a, and the second emitting portion 62 extends in a direction perpendicular to the optical axis 32a. It overlaps with. Further, the first reflecting portion 81 is composed of a plurality of surfaces arranged in parallel in the circumferential direction with respect to the optical axis 32a. The shape of the first reflecting portion 81 when viewed as described above is not particularly limited. For example, when viewed as described above, the first reflecting portion 81 may surround the entire circumference of the lens 50. Further, the first reflecting portion 81 may be composed of a continuous curved surface.

The second reflecting unit 82 is located on the outer peripheral side of the first reflecting unit 81 with reference to the optical axis 32a when the reflector 70 is viewed from the light emitting direction side from the light source unit 32 along the optical axis 32a, and is a lens. This is a portion where at least a part of the light emitted from the third emitting unit 63 of 50 is reflected toward the emission direction side of the light emitted from the light source unit 32. In the present embodiment, the second reflecting unit 82 emits at least a part of the light emitted from the third emitting unit 63 of the lens 50 to the rear side. Further, as shown in FIG. 1, the base portion 71 has two second reflecting portions 82. One second reflection unit 82 is located on the right side of the first reflection unit 81, and the other second reflection unit 82 is located on the left side of the first reflection unit 81. Each of these second reflective portions 82 has an inner portion 82a, a central portion 82b, and an outer portion 82c. When the reflector 70 is viewed from the rear side along the optical axis 32a, the inner portion 82a is located closer to the optical axis 32a than the central portion 82b, and the central portion 82b is located closer to the optical axis 32a than the outer portion 82c. Further, as shown in FIG. 2, the two second reflecting portions 82 are located on the rear side of the first reflecting portion 81. Specifically, the inner portion 82a is located on the rear side of the first reflecting portion 81, the central portion 82b is located on the rear side of the inner portion 82a, and the outer portion 82c is located on the rear side of the central portion 82b. .. Further, each of the inner portion 82a, the central portion 82b, and the outer portion 82c extends toward the rear side so as to be separated from the optical axis 32a. Further, in the direction perpendicular to the optical axis 32a, the inner portion 82a overlaps with the third emitting portion 63, and the central portion 82b and the outer portion 82c do not overlap with the third emitting portion 63. Further, each of the inner portion 82a, the central portion 82b, and the outer portion 82c extends in the vertical direction, and is composed of a plurality of surfaces parallel to each other in the vertical direction, which is the extending direction. Each of the inner portion 82a, the central portion 82b, and the outer portion 82c may be composed of a continuous curved surface. Further, in the second reflecting portion 82, the inner portion 82a and the central portion 82b may be connected, the central portion 82b and the outer portion 82c may be connected, the inner portion 82a and the central portion 82b, and the second reflecting portion 82 may be connected. The central portion 82b and the outer portion 82c may be connected.

The third reflecting unit 83 is located between the first reflecting unit 81 and the lens 50 when the reflector 70 is viewed from the light emitting direction side from the light source unit 32 along the optical axis 32a, and is the second of the lens 50. This is a portion that reflects a part of the light emitted from the emitting unit 62 toward the emission direction side of the light emitted from the light source unit 32. In the present embodiment, the third reflecting unit 83 emits a part of the light emitted from the second emitting unit 62 of the lens 50 to the rear side. Further, as shown in FIG. 1, the base portion 71 is formed between the lens 50 and the first reflection portion 81 on the right side of the lens 50 and between the lens 50 and the first reflection portion 81 on the left side of the lens 50 when viewed as described above. Each of the portions 81 has a plurality of third reflecting portions 83. These third reflecting portions 83 are elongated in the left-right direction, and are arranged in parallel at predetermined intervals in the up-down direction. Further, these third reflecting portions 83 extend in a direction substantially perpendicular to the optical axis 32a. Further, as shown in FIG. 2, these third reflecting portions 83 overlap with the second emitting portion 62 in the direction perpendicular to the optical axis 32a. Further, these third reflecting portions 83 are formed of a plane substantially perpendicular to the optical axis 32a. The number of the third reflecting portions 83 is not particularly limited. Further, the third reflecting portion 83 may extend toward the rear side so as to be separated from the optical axis 32a, or may be composed of a plurality of surfaces. Further, in the present embodiment, the third reflecting unit 83 reflects a part of the light emitted from the third emitting unit 63 of the lens 50 to the rear side.

Next, the optical path of the light emitted from the light source unit 32 will be described.

First, a case where the vehicle indicator light 1 functions as a tail lamp will be described. In this case, power is supplied from a power source (not shown) to the first light emitting unit 41 of the light source unit 32, and red light is emitted from the light source unit 32. As shown in FIGS. 2 and 6, a part of the light emitted from the light source unit 32 is incident on the first incident portion 51 of the incident portion 50i, and the other part is incident on the second incident portion 52 of the incident portion 50i. To do. Most of the light L1 incident on the first incident portion 51 is emitted rearward from the first emitting portion 61 intersecting the optical axis 32a without internal reflection. That is, it can be understood that the first portion of the light incident on the incident portion 50i is emitted rearward from the first exit portion 61. In the present embodiment, as described above, the central portion of the first incident portion 51 is recessed in a conical shape on the rear side, and the apex 51a of the recess is located on the optical axis 32a of the light source portion 32. .. Further, the first incident portion 51 is curved in a convex shape toward the front side between the apex 51a and the outer edge 51e with reference to a straight line connecting the apex 51a and the outer edge 51e of the recess. Therefore, it is suppressed that the light L1 incident on the first incident portion 51 propagates in the direction away from the optical axis 32a.

On the other hand, most of the light incident on the second incident portion 52 is internally reflected rearward by the third internal reflecting portion 57. Of the light incident on the second incident portion 52 and internally reflected by the third internal reflecting portion 57, some of the light L2 is internally reflected by the first internal reflecting portion 55 in the direction away from the optical axis 32a. To. That is, it can be understood that the second portion of the light incident on the incident portion 50i is internally reflected by the first internal reflection portion 55. Then, the light L2 internally reflected by the first internal reflection unit 55 is emitted from the second emission unit 62 in a direction away from the optical axis 32a, and is reflected rearward by the first reflection unit 81 of the reflector 70. Here, the light propagates while diffusing. In the present embodiment, the light emitted from the second emitting portion 62 of the light L2 and diffused toward the front side is reflected to the rear side by the third reflecting portion 83 of the reflector 70.

Further, of the light incident on the second incident portion 52 and internally reflected by the third internal reflection portion 57, some of the other light L3 is internally reflected by the second internal reflection portion 56 in the direction away from the optical axis 32a. Will be done. That is, it can be understood that the third portion of the light incident on the incident portion 50i is internally reflected by the second internal reflection portion 56. Then, the light L2 internally reflected by the second internal reflection unit 56 is emitted from the third emission unit 63 in a direction away from the optical axis 32a, and is reflected rearward by the second reflection unit 82 of the reflector 70. Further, although not shown, in the present embodiment, the light emitted from the third emitting portion 63 of the light L3 and diffused toward the front side is reflected to the rear side by the third reflecting portion 83 of the reflector 70. .. Of the third emitting unit 63, most of the light emitted from the front side portion is reflected by the inner portion 82a of the second reflecting portion 82, and most of the light emitted from the rear portion is second reflected. Most of the light reflected by the outer portion 82c of the portion 82 and emitted from the central portion in the front-rear direction is reflected by the central portion 82b of the second reflecting portion 82. That is, the arrangement of the inner portion 82a, the central portion 82b, and the outer portion 82c and the third exit portion 63 and their shapes are adjusted so that the light emitted from the third exit portion 63 is reflected in this way. There is.

Further, as shown in FIG. 5, among the light incident on the second incident portion 52 and internally reflected by the third internal reflecting portion 57, another part of the light L4 is rearward from the fourth emitting portion 64. It emits to the side. That is, it can be understood that the fourth portion of the light incident on the incident portion 50i is emitted rearward from the fourth exit portion 64.

In this way, in the vehicle indicator light 1 of the present embodiment, the red light emitted from the light source unit 32 is incident on the lens 50, and a part of the light incident on the lens 50 is emitted rearward from the lens 50, and the like. A part of the lens 50 emits light from the lens 50 in a direction away from the optical axis 32a and is reflected rearward by the reflector 70. In this way, the light L1 and L4 emitted from the lens 50 to the rear side and the light L2 and L3 reflected to the rear side by the reflector 70 are emitted through the cover 12, so that the vehicle indicator light 1 turns red. Lights up and functions as a tail lamp.

Next, a case where the vehicle indicator lamp 1 functions as a stop lamp will be described. In this case, power is supplied from a power source (not shown) to the second light emitting unit 42 of the light source unit 32, and red light is emitted from the light source unit 32. Similar to the case where the vehicle indicator light 1 functions as a tail lamp, a part of the light emitted from the light source unit 32 is incident on the first incident portion 51, and the other part is incident on the second incident portion 52. Most of the light L1 incident on the first incident portion 51 is emitted rearward from the first emitting portion 61 without internal reflection.

Further, as in the case where the vehicle indicator light 1 functions as a tail lamp, most of the light incident on the second incident portion 52 is internally reflected rearward by the third internal reflecting portion 57. Then, of the light internally reflected by the third internal reflection unit 57, some of the light L2 is internally reflected by the first internal reflection unit 55 in a direction away from the optical axis 32a, and is internally reflected from the second emission unit 62 by the optical axis. It emits light in a direction away from 32a and is reflected rearward by the first reflecting portion 81 of the reflector 70. Further, some of the other light L3 is internally reflected by the second internal reflection unit 56 in the direction away from the optical axis 32a, and is emitted from the third exit unit 63 in the direction away from the optical axis 32a, and the second reflector 70. It is reflected to the rear side by the reflecting portion 82. Further, among the light internally reflected by the third internal reflection unit 57, another part of the light L4 is emitted rearward from the fourth emission unit 64.

As described above, in the vehicle indicator light 1 of the present embodiment, the red light emitted from the light source unit 32 is incident on the lens 50 and is incident on the lens 50, as in the case where the vehicle indicator light 1 functions as a tail lamp. A part of the light is emitted from the lens 50 to the rear side, and a part of the light is emitted from the lens 50 in a direction away from the optical axis 32a and reflected to the rear side by the reflector 70. Then, L1 and L4 emitted from the lens 50 to the rear side and light L2 and L3 reflected to the rear side by the reflector 70 are emitted through the cover 12. As described above, the total luminous flux amount of the light emitted from the second light emitting unit 42 is larger than the total luminous flux amount of the light emitted from the first light emitting unit 41. Therefore, the vehicle indicator lamp 1 lights up brighter and red than when it functions as a tail lamp, and functions as a stop lamp.

Here, as described above, the second light emitting unit 42 is arranged around the first light emitting unit 41 when the light source unit 32 is viewed from the rear side along the optical axis 32a, and the second incident unit 52 is a lens. When 50 is viewed from the front side along the optical axis 32a of the light source unit 32, it is located around the first incident unit 51. Therefore, the light is more likely to be incident on the second incident portion 52 than in the case where the light is emitted from the first light emitting unit 41. Then, in the present embodiment, the total amount of light incident on the second incident portion 52 with respect to the total luminous flux amount of the light incident on the first incident portion 51 and the second incident portion 52 when the light is emitted from the second light emitting unit 42. The ratio of the amount of light flux is set to be larger than this ratio when light is emitted from the first light emitting unit 41. Therefore, as compared with the case where the light is emitted from the first light emitting unit 41, the light is more likely to be incident on the first reflecting unit 81, the second reflecting unit 82, and the third reflecting unit 83 of the reflector 70. Then, when the light source unit 32 emits light from the second light emitting unit 42, all the light reflected by the first reflecting unit 81 with respect to the total luminous flux amount of the light incident on the first incident unit 51 and the second incident unit 52. The ratio of the amount of light flux is set to be larger than this ratio when the light source unit 32 emits light from the first light emitting unit 41.

As described above, the vehicle indicator light 1 of the present embodiment includes a light source unit 32, a lens 50, and a reflector 70. The light source unit 32 emits light toward the rear, and the light emitting direction side from the light source unit 32 is the rear side. The lens 50 has an incident portion 50i, a first emitting portion 61, a second emitting portion 62, and a first internal reflecting portion 55. The reflector 70 has a first reflecting portion 81. The incident portion 50i intersects with the optical axis 32a of the light source unit 32, and the light emitted from the light source unit 32 is incident on the incident portion 50i. The first emitting portion 61 intersects with the optical axis 32a and emits the first portion of the light incident on the incident portion 50i to the rear side. The first internal reflection portion 55 internally reflects the second portion of the light incident on the incident portion 50i in the direction away from the optical axis 32a. The second emitting unit 62 emits at least a part of the light internally reflected by the first internal reflecting unit 55 in a direction away from the optical axis 32a. The first reflecting unit 81 is located around the lens 50 when the reflector 70 is viewed from the rear side along the optical axis 32a, and reflects at least a part of the light emitted from the second emitting unit 62 to the rear side.

Therefore, the portions of the vehicle indicator lamp 1 of the present embodiment that appear to emit light are the first emitting portion 61 and the second emitting portion 62 of the lens 50, and the first reflecting portion 81 of the reflector 70. Therefore, the vehicle indicator light 1 of the present embodiment can have a wider visible range as compared with the case where the reflector 70 that reflects the light emitted from the lens 50 is not provided.

In the vehicle indicator light 1 of the present embodiment, the lens 50 further includes a second internal reflection portion 56 and a third exit portion 63. The second internal reflection unit 56 internally reflects the third portion of the light incident on the incident unit 50i in the direction away from the optical axis 32a. The third exit unit 63 emits at least a part of the light internally reflected by the second internal reflection unit 56 in a direction away from the optical axis 32a. The reflector 70 further has a second reflecting portion 82. The second reflecting unit 82 reflects at least a part of the light emitted from the third emitting unit 63 to the rear side, and when the reflector 70 is viewed from the rear side along the optical axis 32a, the optical axis is from the first reflecting unit 81. It is located on the outer peripheral side with respect to 32a. Therefore, in the vehicle indicator light 1 of the present embodiment, the third exit portion 63 of the lens 50 and the second reflection portion 82 of the reflector 70 appear to further emit light. Therefore, the vehicle indicator light 1 of the present embodiment can have a wider visible range of light emission. Further, in the vehicle indicator light 1 of the present embodiment, when the reflector 70 is viewed from the rear side along the optical axis 32a, the light emitted from the third exit portion 63 crosses the first reflection portion 81 of the reflector 70. It is incident on the second reflecting unit 82. However, the third emission unit 63 is located behind the second emission unit 62 in the direction parallel to the optical axis 32a. Therefore, in the vehicle indicator light 1 of the present embodiment, it is possible to suppress the light emitted from the third emitting unit 63 from being blocked by the first reflecting unit 81, and the light can be effectively transmitted to the second reflecting unit 82. It can be irradiated and the second reflective unit 82 can be made to appear brighter.

In the vehicle indicator light 1 of the present embodiment, the lens 50 further includes a fourth emitting portion 64 that emits a fourth portion of the light incident on the incident portion 50i to the rear side. Therefore, in the vehicle indicator light 1 of the present embodiment, the fourth exit portion 64 of the lens 50 appears to further emit light. Further, when the lens 50 is viewed from the rear side along the optical axis 32a, at least a part of the first internal reflection portion 55 is located between the first emission portion 61 and the fourth emission portion 64. Here, the first internal reflection portion 55 that internally reflects light looks darker than the portion of the lens 50 that emits light. Therefore, in the vehicle indicator light 1 of the present embodiment, the first internal reflection portion 55 that looks dark in this way can be made inconspicuous.

In the vehicle indicator light 1 of the present embodiment, the reflector 70 further includes a third reflecting unit 83 that reflects at least a part of the light emitted from the second emitting unit 62 to the rear side. Therefore, in the vehicle indicator light 1 of the present embodiment, the third reflecting portion 83 of the reflector 70 appears to further emit light. Further, the third reflecting portion 83 is located between the first reflecting portion 81 and the lens 50 when the reflector 70 is viewed from the rear side along the optical axis 32a. Therefore, in the vehicle indicator light 1 of the present embodiment, as compared with the case where the reflector 70 does not include the third reflecting portion 83, the first emitting portion 61 and the second emitting portion 62 of the lens 50 and the second emitting portion 62 of the reflector 70 are used. 1 It is possible to make it appear that the reflecting portion 81 and the reflecting portion 81 emit light integrally.

In the vehicle indicator light 1 of the present embodiment, the shape of the first internal reflecting portion 55 when the lens 50 is viewed from the rear side along the optical axis 32a is substantially U-shaped, and the reflector 70 is attached to the optical axis 32a. The shape of the first reflecting portion 81 when viewed from the rear side along the line is substantially U-shaped. Therefore, in the vehicle indicator light 1 of the present embodiment, the range in which light can be seen can be widened laterally and downward as compared with the case where the reflector 70 that reflects the light emitted from the lens 50 is not provided.

In the vehicle indicator light 1 of the present embodiment, the light source unit 32 has a first light emitting unit 41 and a second light emitting unit 42, and emits light from the first light emitting unit 41 or the second light emitting unit 42. The second light emitting unit 42 is arranged around the first light emitting unit 41 when the light source unit 32 is viewed from the rear side along the optical axis 32a. When the light source unit 32 emits light from the second light emitting unit 42, the ratio of the total luminous flux amount of the light reflected by the first reflecting unit 81 to the total luminous flux amount of the light incident on the incident unit 50i is determined by the light source unit 32. It is larger than this ratio when light is emitted from the first light emitting unit 41. In the vehicle indicator light 1 of the present embodiment, when the light source unit 32 emits light from the second light emitting unit 42, the periphery of the lens 50 is brighter than when the light source unit 32 emits light from the first light emitting unit 41. It can be made to emit light, and the vehicle indicator light 1 can be made to look large. Therefore, according to the vehicle indicator lamp 1, as described above, the state in which the light source unit 32 emits light from the first light emitting unit 41 is a tail lamp, and the light source unit 32 emits light from the second light emitting unit 42. It can be a rear combination lamp with a brake lamp as the state of operation. Further, according to the vehicle indicator lamp 1 of the present embodiment, it is possible to improve the alerting ability when functioning as a brake lamp.

Although the present invention has been described above by taking the above-described embodiment as an example, the present invention is not limited thereto.

For example, in the above embodiment, the vehicle indicator lamp 1 which is a rear combination lamp for a motorcycle and has a function as a tail lamp and a function as a stop lamp has been described as an example. However, vehicle indicator lights are not limited to motorcycles. Further, the vehicle indicator light may be a tail lamp or a stop lamp. Further, the vehicle indicator lamp may be a clearance lamp, a daytime running lamp, or the like provided in the front part of the vehicle. In this case, the light source unit 32 emits light to the front side, and the light emitting direction side from the light source unit 32 is the front side. Then, the first emission unit 61 and the fourth emission unit 64 of the lens 50 emit light to the front side, and the first reflection unit 81, the second reflection unit 82, and the third reflection unit 83 of the reflector 70 are emitted from the lens 50. Reflects the light of.

Further, in the above embodiment, the first light emitting unit 41 composed of one light emitting element that emits red light and the second light emitting unit 42 composed of four light emitting elements that emit red light have been described as examples. However, the color of the light emitted by the light emitting elements of the first light emitting unit 41 and the second light emitting unit 42 is not particularly limited. For example, the light emitting element of the first light emitting unit 41 or the second light emitting unit 42 may emit white light. In this case, for example, the cover 12 is translucent and is colored red. Further, the number and types of light emitting elements of the first light emitting unit 41 and the second light emitting unit 42 are not particularly limited. For example, the light emitting elements of the first light emitting unit 41 and the second light emitting unit 42 may be laser elements that emit laser light.

Further, in the above embodiment, the optical axis when light is emitted only from the first light emitting unit 41 and the optical axis when light is emitted only from the second light emitting unit 42 are the first light emitting unit 41 and the second light emitting unit. The light source unit 32, which substantially coincides with the optical axis when light is emitted from 42, has been described as an example. However, the optical axis when light is emitted only from the first light emitting unit 41 may be different from the optical axis when light is emitted only from the second light emitting unit 42. In this case, for example, the optical axis 32a is a cylinder, and this cylinder extends along the optical axis when light is emitted only from the first light emitting unit 41, and in the light chamber R of the vehicle indicator light 1. The cylinder includes the optical axis in this case and the optical axis when light is emitted only from the second light emitting unit 42, and has the smallest diameter.

Further, in the above embodiment, the light source unit 30 including the socket housing 31 and the light source unit 32 has been described as an example. However, the configuration of the light source unit is not particularly limited. Further, in the above embodiment, the light source unit 32 having the first light emitting unit 41, the second light emitting unit 42, the circuit board 43, and the lens unit 44 has been described as an example. However, the light source unit need only be able to emit light, and for example, the light source unit does not have to have the lens unit 44.

Further, in the above embodiment, the incident portion 50i composed of the first incident portion 51 and the second incident portion 52, the first internal reflection portion 55, the second internal reflection portion 56, the third internal reflection portion 57, and the first exit portion 61 , The lens 50 having the second emitting unit 62, the third emitting unit 63, and the fourth emitting unit 64 has been described as an example. However, the lens 50 may have an incident portion 50i, a first emitting portion 61, a second emitting portion 62, and a first internal reflecting portion 55. For example, the incident portion 50i of the lens 50 may be composed of only the first incident portion 51. In this case, for example, a part of the light incident on the first incident part 51 is emitted from the first emitting part 61, and the other part is internally reflected by the third internal reflecting part 57. Further, the lens 50 does not have to have the second internal reflection unit 56, the third internal reflection unit 57, the third emission unit 63, and the fourth emission unit 64.

Further, in the above embodiment, the reflector 70 having the base portion 71 and the frame portion 72 has been described as an example. However, the reflector 70 may have at least the first reflecting portion 81. For example, the reflector may not have a frame portion 72. Further, the base portion of the reflector does not have to have the second reflecting portion 82 and the third reflecting portion 83.

According to the present invention, there is provided a vehicle indicator light capable of widening the visible range of light emission, and the present invention can be used in the field of vehicle indicator lights such as automobiles.

1 ... Vehicle indicator light 30 ... Light source unit 32 ... Light source unit 32a ... Optical axis 41 ... First light emitting unit 42 ... Second light emitting unit 50 ... Lens 50i ...・ Incident part 51 ・ ・ ・ First incident part 52 ・ ・ ・ Second incident part 55 ・ ・ ・ First internal reflection part 56 ・ ・ ・ Second internal reflection part 57 ・ ・ ・ Third internal reflection part 61 ・ ・ ・1st light source 62 ... 2nd light source 63 ... 3rd light source 64 ... 4th light source 70 ... Reflector 81 ... 1st light source 82 ... 2nd light source 83・ ・ ・ Third reflector

Claims (6)

A light source that emits light and
A lens having an incident portion, a first emitting portion, a second emitting portion, and a first internal reflecting portion and arranged on the emission direction side of the light from the light source portion.
A reflector having a first reflector and
With
The incident portion intersects with the optical axis of the light source portion, and the light emitted from the light source portion is incident on the incident portion.
The first emitting portion intersects the optical axis and emits the first portion of the light incident on the incident portion toward the emitting direction side.
The first internal reflection portion internally reflects the second portion of the light incident on the incident portion in a direction away from the optical axis.
The second emitting unit emits at least a part of the light internally reflected by the first internal reflecting unit in a direction away from the optical axis.
The first reflecting portion is located around the lens when the reflector is viewed from the emitting direction side along the optical axis, and at least a part of the light emitted from the second emitting portion is emitted from the emitting direction side. A vehicle indicator light characterized by reflection on the surface. The lens has a second internal reflection portion that internally reflects a third portion of light incident on the incident portion in a direction away from the optical axis, and at least a part of the light internally reflected by the second internal reflection portion. It further has a third exit portion that emits in a direction away from the optical axis.
The third exit portion is located on the emission direction side of the second exit portion in a direction parallel to the optical axis.
The reflector further has a second reflecting portion that reflects at least a part of the light emitted from the third emitting portion toward the emitting direction side.
Claim 1 is characterized in that the second reflecting portion is located on the outer peripheral side of the first reflecting portion with respect to the optical axis when the reflector is viewed from the emission direction side along the optical axis. Vehicle indicator lights listed in. The lens further has a fourth exit portion that emits a fourth portion of light incident on the incident portion toward the emission direction side.
When the lens is viewed from the emission direction side along the optical axis, at least a part of the first internal reflection portion is located between the first emission portion and the fourth emission portion. The vehicle indicator light according to claim 1 or 2. The reflector further has a third reflecting portion that reflects a part of the light emitted from the second emitting portion toward the emitting direction side.
Any of claims 1 to 3, wherein the third reflecting portion is located between the first reflecting portion and the lens when the reflector is viewed from the emission direction side along the optical axis. The vehicle indicator light according to item 1. The shape of the first internal reflection portion when the lens is viewed from the emission direction side along the optical axis is substantially U-shaped.
The method according to any one of claims 1 to 4, wherein the shape of the first reflecting portion when the reflector is viewed from the emission direction side along the optical axis is substantially U-shaped. Vehicle indicator light. The light source unit has a first light emitting unit and a second light emitting unit, and emits light from the first light emitting unit or the second light emitting unit.
The second light emitting unit is arranged around the first light emitting unit when the light source unit is viewed from the emission direction side along the optical axis.
When the light source unit emits light from the second light emitting unit, the ratio of the total luminous flux amount of the light reflected by the first reflecting unit to the total luminous flux amount of the light incident on the incident unit is determined by the light source unit. The vehicle indicator light according to any one of claims 1 to 5, wherein the ratio is larger than the ratio when light is emitted from the first light emitting unit.

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