JP6936046B2 - Vehicle lighting - Google Patents

Description

The present invention relates to a vehicle signal lamp unit such as a tail stop lamp provided in a two-wheeled vehicle, a tail stop lamp provided in a four-wheeled vehicle, and a position lamp unit provided in a headlamp.

Conventionally, a combination lamp of a vehicle lamp using an LED (light emitting diode) as a light source and a light guide plate has been known.
In the vehicle lighting equipment of Patent Document 1, a prism lens is provided on the back surface of the light guide plate, LEDs are arranged on the central portion of the back surface of the light guide plate and on each of the side surfaces on both sides, and after guiding the inside of the light guide plate, the light is emitted from the front side. Is illuminating the outside.

Japanese Unexamined Patent Publication No. 2013-62074

In the vehicle lighting equipment of Patent Document 1, the prism lens provided on the back surface of the light guide plate is provided with a lens portion corresponding to the LED arranged in the center portion of the back surface and a lens portion corresponding to the LED arranged on the side surface. The lens part corresponding to the center part of the back has a shape that emits the light from the LED arranged in the center part of the back as parallel rays to the surface side, and the lens part corresponding to the LED arranged on the side surface has a convex triangular prism cut. Is provided so that the light is emitted to the surface side. As a result, lamps having different functions can be obtained in a small space without mixing the emitted light from each LED.

However, in order to obtain light distribution characteristics that satisfy different functions only with the light guide plate, it is necessary to strictly control the prism cut corresponding to each region. Therefore, the shape and emission region of the prism lens cannot be changed significantly, and it is difficult to obtain a three-dimensional combination lamp. In addition, the exit surfaces of the respective regions having different functions tend to have similar designs, and it is difficult to have different light emitting modes.

The present invention has been proposed in view of such conventional circumstances, and an object of the present invention is to provide a three-dimensional vehicle lamp having two different light emitting modes.

A first lens cover having a light emitting element light source mounted on a substrate, a first reflector having a curved first reflecting surface located on the optical axis of the light emitting element light source, and a first lens cover facing the first reflecting surface. 1 light emitting unit and
A second light emitting unit having a second reflector having a second reflecting surface and a second lens cover extending along the second reflecting surface located on the front side in the irradiation direction and adjacent to the first light emitting unit. It is a vehicle lighting fixture equipped with a unit and
The first reflecting surface includes a light source side reflecting surface extending from an intersection position intersecting the optical axis to the light source side in a cross section passing through the optical axis, and a distant reflecting surface extending from the intersection position to the opposite side to the light source side. Prepare,
The light source side reflective surface and the distal reflecting surface is formed by a continuous diffuse reflective surface,
The first reflector is formed with a vertical wall surface extending from the edge of the first reflecting surface toward the first lens cover side.
The second reflector is integrally formed with the first reflector as a curved surface that is convex toward the rear side extending from the distal end edge of the vertical wall surface.
The first lens cover and the second lens cover are integrally formed of a translucent resin material via a connecting portion.
The connection portion is provided with an incident surface extending in the forward direction from a position facing the tip end side edge of the vertical wall surface on the first light emitting unit unit side.
Concavities or protrusions are discretely formed on the surface of the second lens cover on the second reflector side, and a part of the light emitted from the light emitting element light source passes through the incident surface to the second. It is characterized by irradiating the outside with the light that has guided the inside of the lens cover.

The invention according to claim 2 is the lamp according to claim 1.
A lens member is provided in front of the LED light source in the irradiation direction.
The lens member includes an incident surface on the LED light source side and an emitting surface on the opposite side of the LED light source.
The incident surface is a refracting surface that collects light from the LED light source.
The emitting surface is formed as a diffusion surface that diffuses light incident from the incident surface in at least one direction.

The invention according to claim 3 is the lamp according to claim 1 or 2.
The first reflector and the second reflector are integrally formed of a white resin material, and at least the surface of the standing wall surface and the first reflecting surface is a diffusion surface provided with minute irregularities. It is characterized by that.

The invention according to claim 4 is the lamp according to claim 1 or 2.
The light source side reflecting surface and the far side reflecting surface have a white matte film formed on the first reflector.

The invention according to claim 5 is the lamp according to any one of claims 1 to 4.
A concave lens cut extending in a direction parallel to the connection portion is formed on the surface of the second lens cover on the second reflector side.

According to the first aspect of the present invention, since the light emitted by the first light emitting unit unit irradiates the diffused light by the diffuse reflection surface, it has a high uniformity feeling without a bright spot specifically on the light emitting surface. A planar light emitting surface can be obtained. On the other hand, the light emitting surface by the second light emitting unit is the light that is incident from the incident surface provided at the connecting portion and is emitted to the outside from the concave or convex portions discretely formed on the second lens cover. It is possible to obtain a light emitting surface having a three-dimensional shape in which a specific portion emits light brighter than the light emitted by the light emitting unit of 1. Thereby, it is possible to provide a three-dimensional vehicle lamp having two different light emitting modes. Two different types of light emission can be obtained in a small space.

According to the second aspect of the present invention, the light that has passed through the lens member is further reflected by the diffuse reflection surface. The lens member is provided with an incident surface formed of a refracting surface that collects light and an exit surface formed of a diffusing surface. Therefore, the light reflected by the light source side reflecting surface and the distant reflecting surface formed by the continuous diffuse reflection surface of the first light emitting unit unit becomes the light that has already passed through the emission surface composed of the diffuse surface, and thus emits light. The light emission uniformity of the first lens cover, which is a surface, can be further improved.

According to the invention of claim 3, the first reflector and the second reflector are integrally formed of a white resin material. Further, the surface of the reflecting surface is a diffuse reflecting surface provided with minute irregularities. Therefore, a vehicle lamp that easily saves space in the first light emitting unit and the second light emitting unit and has a uniform light emitting surface is provided.
Can be provided.

According to the invention of claim 4, the light that has passed through the lens member is reflected by the white matte film. Therefore, the light reflected by the light source side reflecting surface and the front far side reflecting surface formed by the continuous diffuse reflection surface of the first light emitting unit is the light that has already passed through the emission surface formed of the diffusion surface. The light emission uniformity of the first lens cover, which is the light emitting surface, can be further improved.

Further, according to the invention of claim 5, the second lens cover is formed with a concave lens cut extending in a direction parallel to the connection portion. As a result, the light from the second light emitting unit can be formed as a linear light emitting surface extending in a direction parallel to the connection portion, and the first light emitting unit and the second light emitting unit can be combined with each other. The light emission mode may have a different impression.

It is a front view of the lighting fixture for a vehicle which concerns on one Embodiment. It is a front view which shows the vehicle signal lamp unit provided in the vehicle lamp of FIG. It is a schematic perspective view which shows disassembled the signal lamp unit for a vehicle of FIG. It is sectional drawing along the line AA of the signal lamp unit for a vehicle of FIG. It is sectional drawing along the line BB of the signal lamp unit for a vehicle of FIG. FIG. 5 is a schematic cross section illustrating a light beam in the vehicle signal lamp unit of FIG. It is a schematic perspective view which shows the reflector of the signal lamp unit for a vehicle of FIG. It is a schematic perspective view which shows the lens cover of the signal lamp unit for a vehicle of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view (front view) of the vehicle lamp 1 according to the present embodiment. In the following description, the descriptions "front", "rear", "left", "right", "top", and "bottom" refer to the direction seen from the vehicle lamp 1.

FIG. 1 schematically shows a vehicle lighting tool 1 composed of two types, a rear combination lamp 3 mounted on the rear right side of a vehicle (not shown) and a lid lamp 2 mounted on the trunk so as to be adjacent to the rear combination lamp 3. show. Similarly, the rear combination lamp 3 and the lid lamp 2 are installed adjacent to each other on the left side of the rear part of the vehicle.
The rear combination lamp 3 and the lid lamp 2 each include a lamp unit in a lamp chamber formed by a housing (not shown) and a translucent outer cover that covers a front opening of the housing. Two tail-and-stop lamp units 3a1, 3a2, 3a3, one stop lamp unit 3b and a turn lamp unit 3c are arranged in the rear combination lamp 3, and the lid lamp 2 contains the two tail and stop lamp units 3a1, 3a2, 3a3. , Each having a tail lamp unit 2a and a back lamp unit 2b. The function and arrangement position of each lamp unit in the lid lamp 2 and the rear combination lamp 3 are appropriately changed according to the application and the design. The irradiation light from each lamp unit passes through a translucent outer cover (not shown) of each lamp and irradiates the outside of the lamp.

Next, as an example of each lamp unit, the vehicle signal lamp unit 10 and the vehicle signal lamp unit 20 provided in the rear combination lamp 3 will be described.
FIG. 2 shows the front surface (front surface) of the vehicle signal lamp unit 10 corresponding to the tail and stop lamp unit 3a2 in the rear combination lamp 3 and the vehicle signal lamp unit 20 corresponding to the tail and stop lamp unit 3a3. FIG. 3 is a schematic view showing the vehicle signal lamp units 10 and 20 of FIG. 2 in an exploded manner. FIG. 4 is a cross-sectional view taken along the line AA of FIG. 2, and FIG. 5 is a cross-sectional view taken along the line BB of FIG. FIG. 6 is a schematic cross section illustrating a light beam in the vehicle signal lamp unit of FIG. 7 and 8 are perspective views of the reflectors and lens covers of the vehicle signal lamp units 10 and 20 of FIG.

The vehicle signal lamp unit 20 is arranged below the vehicle signal lamp unit 10 and is integrally formed. Both units 10 and 20 emit light from the same light source.
First, a vehicle signal lamp unit 10 which is a first light emitting unit unit provided with a light source will be described.

As shown in FIGS. 3 and 5, the vehicle signal lamp unit 10 includes a reflector 13, a substrate 11 arranged on the right rear side of the reflector 13, a light source composed of a plurality of LEDs 12 mounted on the substrate 11, and a reflector. It is composed of a lens cover 15 provided facing the 13 and a light-shielding member 18 and a decorative member 19 provided in front of the lens cover 15. In the present embodiment, the LED 12 has a plurality of LEDs 12 mounted on the substrate 11 via solder so as to emit light from the rear right to the front left. Reference numeral 17 is an inner lens, and reference numeral 12a is a bracket for supplying power to the LED 12.

The LED 12 uses a surface mount type LED package in which a red light emitting LED element functioning as a tail and stop lamp unit is provided in a reflection frame. As the substrate 11, a metal-based wiring board in which an insulating film and an electrode film are attached on a thick metal substrate is used. By using a metal-based substrate as the substrate 11, heat transfer and heat dissipation can be improved. In this embodiment, a total of four LEDs 12 are arranged in a row on the substrate 11 along the vertical direction.

The reflector 13 has a first reflecting surface 130 having an inner surface having a concave curved curved surface as a basic shape toward the front in the irradiation direction, and standing walls 140 and 140 on the upper and lower sides of the first reflecting surface 130. The vertical wall surfaces 140, 140 extend from the surface of the reflecting surface 130 in the emission direction and are integrally formed. The reflector 23 of the second light emitting unit 20, which will be described later, is integrally formed on the lower side of the first reflecting surface 130.

The reflector 13 is formed by injection molding a white-colored ASA resin (acrylate styrene acrylonitrile). As the ASA resin, a multicolored resin material exhibiting excellent weather resistance is provided on the market, and since it is excellent in aesthetics, the resin material can be used as it is as the reflecting surface 130. Further, a thermoplastic resin material such as ABS resin (acrylonitrile butadiene styrene), acrylic resin, or polycarbonate resin may be used. Further, when it is formed by using a resin material having a color other than white, a white reflection / diffusion film (not shown) may be formed on the surface thereof. A matte white resin containing ceramic particles is applied to the white reflective diffusion film, and the surface thereof becomes a rough reflective surface.

As shown in FIG. 5, the first reflecting surface 130 is formed in a concave shape that intersects the optical axis Ax of the LED 12. From the light source side reflecting surface 131 located on the light source side from the intersection P of the optical axis Ax and the reflecting surface 40, that is, on the substrate 11 side where the LED 12 is provided, and from the far side reflecting surface 132 located on the reflector tip 142 side from the intersection P. Become.

As shown in FIG. 5, the light source side reflecting surface 131 has the entire reflecting surface 13 continuous so that the angle θ between the tangent line L and the optical axis Ax at the intersection P, that is, the angle on the LED 32 side is an acute angle. It consists of a curved surface. The surface of the light source side reflecting surface 131 is formed as a diffuse reflecting surface provided with fine irregularities.

The far-side reflecting surface 132 is formed of a continuous curved surface extending from the intersection P to the reflector tip 142. The surface of the distant reflection surface 132 is also formed as a diffuse reflection surface provided with fine irregularities. The light source side reflecting surface 131 and the distant reflecting surface 132 are smoothly connected. The tangents of the respective reflection surfaces on the light source side reflection surface 131 and the distant reflection surface 132 have an acute angle between the optical axis Ax, that is, the angle θ on the LED12 side between the tangent line and the optical axis is an acute angle. It is formed like this.

As shown in FIGS. 4 and 7, vertical wall surfaces 140 and 140 formed by bending toward the lens cover 15 side, which is a light emitting surface, are formed above and below the first reflecting surface 130. The vertical wall surface 140 extends from the edge 13a of the upper and lower sides of the reflective surface 130 of the recessed reflector 13 toward the emission direction of the vehicle signal lamp unit 10, and is integrally formed.

The lens cover 15 is arranged in front of the reflector 13 and covers the entire reflecting surface 130. As shown in FIG. 5, in the cross section in the left-right direction, it extends from the base end portion 151 located in the vicinity of the LED 12 to the reflector tip portion 142. The substrate 11 on which the base end portion 151 and the LED 12 are mounted is covered with a decorative reflective surface 19 so that the LED 12 is not directly visible from the outside. Further, as shown in FIGS. 4 and 8, below the lens cover (first lens cover) 15, the lens cover (second lens cover) of the vehicle signal lamp unit 20, which is a second light emitting unit, which will be described later. ) 25 are integrally formed.

The lens cover (first lens cover) 15 has an inner surface incident surface 15a facing the reflecting surface (first reflecting surface) 130, an outer emitting surface 15b on the opposite side of the inner surface incident surface 15a, and an outer light shielding surface 15c. As shown in FIG. 8, the outer exit surface 15b forms a large number of diffusion lens surfaces that are finely divided in the vertical and horizontal directions in a matrix shape. Each diffusion lens surface is set so that the diffusion angle in the vertical direction and the diffusion angle in the left-right direction can be obtained so as to obtain a light distribution characteristic suitable for the function of the vehicle signal lamp unit 10. In the present embodiment, the curvature is formed to match the tail lamp and the stop lamp, and the pitch is set to 0.5 mm. The inner surface incident surface 15a is provided with a semi-cylindrical lens cut for spreading in the left-right direction at the same pitch as the outer emitting surface 15b. As a result, it is possible to obtain a light distribution pattern that spreads in the horizontal direction and spreads in the horizontal direction as compared with the vertical direction. Further, since the lens cut of the inner surface incident surface 15a and the lens cut of the outer emitting surface 15b have the same pitch, there is no overlap deviation of the lens cuts in the front view, so that the uniformity at the time of non-lighting is improved. In addition, in order to simplify the drawing, the fine lens cuts on the inside and outside are omitted.

The outer light-shielding surface 15c shields the exit surface from light to form a design shape as shown in FIG. In the present embodiment, the light-shielding member 18 is fixed to the outside of the outer light-shielding surface 15c. By providing the outer light-shielding surface 15c in the space surrounded by the outer light-emitting surface 15b, which is the light-emitting surface, a high-contrast light-emitting surface can be obtained. The light-shielding member 18 is not limited to fixing a separately formed resin material, and may be provided with a coating film.

A decorative member 19 is provided on the outside of the lens cover 15, and the decorative member 19 shields the periphery of the outer exit surface 15b from light. The decorative member 19 has a shape that covers the vicinity of the substrate 11, and can prevent the LED 12 and the like from being directly observed when not lit, and can prevent light leakage when lit. An opening 19a for a plurality of lamp units is formed in the center of the decorative member 19, and a plurality of tamp units, for example, a tail and stop lamp unit, a stop lamp unit, and a turn lamp, are formed in the opening 19a. Set up a unit and decorate its surroundings.

An inner lens 17 is provided between the LED 12 and the reflecting surface 130. The inner lens 17 is formed by molding a transparent polycarbonate resin, and is located in the vicinity of the reflector 13 and the base end portion 151 of the lens cover 15. Specifically, it is coupled to a substrate 11 on which a plurality of LEDs 12 are mounted by a locking portion 17d such as a hook structure. The optical axis Ax of the LED 12 and the optical center of the inner lens 17 are positioned and fixed so as to coincide with each other.

The inner lens 17 has a lens portion formed by an incident surface 17b facing the exit surface of the LED 12 and an exit surface 17c on the opposite side of the incident surface 17b. The incident surface 17b is formed so as to collect the light emitted from the LED 12 in a predetermined range centered on the optical axis Ax, convert it into parallel light rays, and travel in the inner lens 17. The exit surface 17c is made into parallel light rays and diffuses the light that has traveled in the inner lens 17 to emit the light. A diffusion lens cut is formed so that the diffused and emitted light is directed toward the reflecting surface 130. The pitch of the diffuse lens cut is a fine cut smaller than the pitch of the lens cut on the outer exit surface 15b of the lens cover 15. This makes it possible to further improve the uniformity of the light emitting surface.

The first light emitting unit 10 is fixed in the housing of a vehicle lamp (not shown) so as to be located behind the outer cover (not shown) of the rear combination lamp 3. Therefore, the lens cover 15 corresponds to the inner lens of the vehicle lamp 1. As a result, the outer exit surface 15b of the lens cover 15 and the shielding member 18 are observed through the outer cover and observed as a design surface.

Next, the vehicle signal lamp unit 20 will be described.

The vehicle signal lamp unit 20 is formed so as to be connected to and arranged with the vehicle signal lamp unit 10 as shown in FIG. The vehicle signal lamp unit 10 corresponds to the first light emitting unit, and the vehicle signal lamp unit 20 corresponds to the second light emitting unit. The vehicle signal lamp unit 20 includes a reflector 23 and a lens cover 25. The vehicle signal lamp unit 20 does not have an independent light source. Light is emitted by using the light from the light source of the vehicle signal lamp unit 10 which is the first light emitting unit.

As shown in FIGS. 4 and 7, the reflector (second reflector) 23 has a curved curved surface that is convex toward the front in the irradiation direction as a basic shape, and the reflector (first light emitting unit) 10 of the vehicle signal lamp unit (first light emitting unit) 10 has a basic shape. It is integrally formed with the first reflector) 13. The reflector 23 is also made of the same material as the reflector (first reflector) 13, but unlike the reflector (first reflector) 13, the surface thereof is a smooth reflecting surface instead of a diffuse reflecting surface. As a result, the appearance impressions of the first light emitting unit 10 and the second light emitting unit 20 can be emphasized as different. The surface of the reflector (second reflector) 23 may be formed as a diffuse reflection surface like the reflector (first reflector) 13. By using a diffuse reflection surface, even if some scratches or injection-molded welds occur in the reflector manufacturing process, they are less noticeable even when the reflector is not lit. Therefore, the number of defective products is reduced, and as a result, the cost can be reduced. Further, diffuse reflection can be generated to make the lens cut 26, which will be described later, shine. Further, a metal film may be provided by applying aluminum vapor deposition or the like on the surface.

As shown in FIG. 4, the reflector (second reflector) 23 is located above and below the first reflecting surface 130 of the reflector (first reflector) 13 of the vehicle signal lamp unit (first light emitting unit) 10. Then, the upper reflector 231 that bends upward at an angle of about 90 degrees and extends downward from the tips of the vertical walls 140 and 140 that extend from the surface of the reflecting surface 130 in the exit direction, and bends downward at an angle of about 90 degrees. An extending lower reflector 232 is formed.

The lens cover (second lens cover) 25 is arranged in front of the reflector 23 and covers the entire reflecting surface as shown in FIGS. 4 and 8. An upper lens cover 251 is provided above the vehicle signal lamp unit 10, and a lower lens cover 252 is provided below. A gap is provided between the reflector 23 and the lens cover 25, and an air layer is provided. By providing the air layer, the light that guides the inside of the lens cover 25 is totally reflected by utilizing the difference in the refractive index between the lens cover 25 and the air layer. The upper lens cover 251 having a shape corresponding to the upper reflector 231 and the lower lens cover 252 having a shape corresponding to the lower reflector 232 cover the entire reflecting surface with a predetermined gap between the upper reflector 231 and the lower reflector 232, respectively. It is formed in the shape of a curved plate.

The upper lens cover 251 is located behind the lens cover (first lens cover) 15 of the vehicle signal lamp unit (first light emitting unit) 10 and is integrally formed via the upper connecting portion 16. The lower lens cover 252 is located behind the lens cover (first lens cover) 15 of the vehicle signal lamp unit (first light emitting unit) 10 and is integrally formed via the lower connecting portion 16.

4A and 4B are cross-sectional views taken along the line AA of FIG. 2, FIG. 4A is an overall cross-sectional view, and FIG. 4B is an enlarged cross-sectional view showing a portion C of FIG. 4A.

The connection portion 16 is located inside the vehicle signal lamp unit (first light emitting unit) 10 between the tip of the vertical wall surface 140 and the inner surface incident surface 15a of the lens cover 15. A connecting portion incident surface 16a is formed on the surface of the connecting portion 16 on the first reflecting surface 130 side, which is located between the tip of the vertical wall surface 140 and the inner surface incident surface 15a of the lens cover 15.

The connection portion 16 is located inside the vehicle signal lamp unit (first light emitting unit) 10 between the tip of the vertical wall surface 140 and the inner surface incident surface 15a of the lens cover 15. A connecting portion incident surface 16a is formed on the surface of the connecting portion 16 on the first reflecting surface 130 side, which is located between the tip of the vertical wall surface 140 and the inner surface incident surface 15a of the lens cover 15.

The lens cover (second lens cover) 25 is provided with a lens cut 26 having a concave groove such as a V groove on the surface facing the reflector (second reflector) 23. The lens cut 26 extends in a direction parallel to the entrance surface 16a of the connecting portion. The shape of the lens cut 26 is not limited to a concave groove such as a V-shape or a semicircular shape in a cross section in a direction orthogonal to the entrance surface 16a of the connection portion, and may be a convex portion. By providing a concave portion or a convex portion, the light that is incident on the lens cover (second lens cover) 25 from the incident surface 16a of the connecting portion and guides the light is lens-cut as shown by an arrow in FIG. 4 (B). 26 can be emitted toward the outside of the lens cover 25.

In the present embodiment, the upper lens cover 251 is provided with one lens cut 26 extending in the left-right direction, and the lower lens cover 252 is provided with five lens cuts 26 extending in the left-right direction in a line shape at intervals. The portion where the lens cut 26 is not provided is a transparent portion made of a smooth surface. By providing the lens cut 26 discretely from the incident surface 16a of the connecting portion, the lens cut 26 is discretely located in the transparent portion. Since the transparent portion is formed of a smooth surface, the light is guided by repeating internal reflection as shown in FIG. 4 (B). The lens cut 26 emits a part of the guided light toward the outside. As a result, the light emitting portions are arranged discretely, preferably in a line shape, in the transparent lens cover 25.

Next, the optical systems of the vehicle signal lamp units 10 and 20 will be described with reference to FIGS. 5 and 4.

The light emitted from the LED 12 is made into substantially parallel rays by the incident surface 17b of the inner lens 17, and then diffused by the diffuser lens cut formed on the emitting surface 17c and travels toward the first reflecting surface 130. The light ray Ray 1 indicates one of the light rays emitted from the outer emission surface 15b of the first lens cover 15 after being directed to the light source side reflection surface 131. The ray 2 indicates one of the rays emitted from the far side emitting surface 132. The light ray Ray 3 indicates one of the light rays emitted toward the second light emitting unit 20.

The light ray Ray 1 is diffused at four interfaces of the exit surface 17c of the inner lens 17, the light source side reflection surface 131, the inside entrance surface 15a of the first lens cover 15, and the outside emission surface 15b. The light ray Ray2 is diffused at four interfaces of the exit surface 17c of the inner lens 17, the distant reflection surface 132, the inner entrance surface 15a of the first lens cover 15, and the outer emission surface 15b. As a result, the light of the LED 12 can be diffused and spread, and the uniformity of the outer exit surface 15b of the first lens cover, which is the design surface, can be improved. Further, since the light emitted from the LED 12 is focused and diffused by the inner lens 17 before reaching the reflecting surface 130, the utilization efficiency of the light emitted from the LED 12 is improved and the light emitted from the LED 12 is directed toward the reflecting surface 130. The diffused light is advanced to further improve the uniformity.

As a result, the first light emitting unit 10 becomes a highly uniform light emitting surface. Further, as the light emitting surface, a planar light emitting surface having a high uniformity feeling without a specifically bright bright spot can be obtained.

A part of the light emitted from the LED 12 and diffused by the diffuser lens cut formed on the exit surface 17c of the inner lens 17 travels toward the entrance surface 16a of the connecting portion. It enters the lens cover (second lens cover) 25 from the incident surface 16a of the connecting portion and advances toward the tip while guiding the inside. At this time, a part of the light becomes Ray 3 emitted toward the outside of the lens cover 25 by the lens cuts 26 provided discretely as shown by the arrows in FIG. 4 (B).

As a result, in the second light emitting unit unit 20, the light emitting parts are discretely present in the transparent lens unit. That is, in contrast to the first light emitting unit, the light emitting surface has a light emitting unit that emits bright light at a specific portion as a whole.

Therefore, by connecting the first light emitting unit 10 and the second light emitting unit 20 to each other, it is possible to provide a three-dimensional vehicle lamp having two different light emitting modes by light from the same light source. can. Two different types of light emission can be obtained in a small space.

Although the embodiments of the present invention have been described above, the above-described embodiments and modifications are merely examples in all respects. These descriptions do not limit the present invention. The present invention can be added, omitted, replaced and other modifications of the configuration in various other ways without departing from its gist.
For example, the reflective surfaces of the reflectors 13 and 23 have been described as continuous curved surfaces, but a multi-stage reflective surface based on a constant curved surface may be used, and a diffuse reflection coating film may be provided on the surface thereof.

1 ... Vehicle lamp 2 ... Lid lamp 3 ... Rear combination lamp 10 ... Vehicle signal lamp unit (first light emitting unit)
11 ... Substrate 12 ... Light source (LED)
13 ... Reflector (1st reflector)
15 ... Lens cover (1st lens cover)
16 ... Connection part 17 ... Inner lens (lens member)
18 ... Light-shielding member 19 ... Decorative member 20 ... Vehicle signal lamp unit (second light emitting unit)
23 ... Reflector (second reflector)
25 ... Lens cover (second lens cover)
26 ... Lens cut Ax ... Optical axis P ... Intersection L ... Tangent θ ... Angle between the center line of the optical axis and the tangent of the reflecting surface

Claims (5)

A first lens cover having a light emitting element light source mounted on a substrate, a first reflector having a curved first reflecting surface located on the optical axis of the light emitting element light source, and a first lens cover facing the first reflecting surface. 1 light emitting unit and
A second light emitting unit having a second reflector having a second reflecting surface and a second lens cover extending along the second reflecting surface located on the front side in the irradiation direction and adjacent to the first light emitting unit. It is a vehicle lighting fixture equipped with a unit and
The first reflecting surface includes a light source side reflecting surface extending from an intersection position intersecting the optical axis to the light source side in a cross section passing through the optical axis, and a distant reflecting surface extending from the intersection position to the opposite side to the light source side. Prepare,
The light source side reflective surface and the distal reflecting surface is formed by a continuous diffuse reflective surface,
The first reflector is formed with a vertical wall surface extending from the edge of the first reflecting surface toward the first lens cover side.
The second reflector is integrally formed with the first reflector as a curved surface that is convex toward the rear side extending from the distal edge of the vertical wall surface.
The first lens cover and the second lens cover are integrally formed of a translucent resin material via a connecting portion.
The connection portion is provided with an incident surface extending in the forward direction from a position facing the tip end side edge of the vertical wall surface on the first light emitting unit unit side.
Recesses or protrusions are discretely formed on the surface of the second lens cover on the second reflector side, and a part of the light emitted from the light emitting element light source passes through the incident surface to the second. A vehicle lamp that irradiates the outside with the light that has guided the inside of the lens cover. A lens member is provided in front of the LED light source in the irradiation direction.
The lens member includes an incident surface on the LED light source side and an emitting surface on the opposite side of the LED light source.
The incident surface is a refracting surface that collects light from the LED light source.
The vehicle lamp according to claim 1, wherein the exit surface is formed as a diffusion surface that diffuses light incident from the incident surface in at least one direction. The first reflector and the second reflector are integrally formed of a white resin material, and at least the surface of the standing wall surface and the first reflecting surface is a diffusion surface provided with minute irregularities. The vehicle lighting fixture according to claim 1 or 2, wherein the lamp is characterized by the above. The vehicle lamp according to claim 1 or 2, wherein the light source side reflecting surface and the far side reflecting surface have a white matte film formed on the first reflector. The first to fourth aspects of the second lens cover, wherein a concave lens cut extending in a direction parallel to the connection portion is formed on the surface of the second lens cover on the second reflector side. Described vehicle lighting equipment.

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