JP7039787B2 - Vehicle lighting - Google Patents

Description

The present invention relates to a vehicle lamp attached to a vehicle.

Vehicle lighting fixtures attached to vehicles such as automobiles include headlights, side lights, and taillights. Patent Document 1 discloses a conventional headlight for a vehicle. FIG. 8 shows a conventional headlight for a vehicle, and is a vertical cross-sectional view (vertical cross-sectional view) seen from the vehicle width direction of the vehicle. As shown in FIG. 8, the conventional vehicle headlight includes a housing 91, an outer lens 92, a light source 93, and a reflector 94. The housing 91 and the outer lens 92 define the light chamber 99. A light source 93 and a reflector 94 are arranged in the light chamber 99. Then, the light from the light source 93 is reflected by the reflector 94, and the light distribution is controlled so as to irradiate the front of the vehicle (see the broken line arrow in FIG. 8).

Japanese Unexamined Patent Publication No. 2013-8637

However, in the conventional headlights for vehicles as described above, a part of the light from the light source 93 is not reflected by the reflector 94 and directly illuminates the housing 91 (see FIG. 8 one-dot chain arrow). Therefore, the conventional vehicle headlight cannot control the light distribution of a part of the light from the light source 93, and is wasted.

Therefore, the present invention has been created in view of the above problems, and an object of the present invention is to provide a lamp for a vehicle capable of effectively utilizing the light from a light source.

The vehicle lamp provided by the present invention has a light source, a reflector that reflects light from the light source, and light incident from the light source that is arranged at a non-incident position where the light reflected by the reflector does not enter. It is characterized by including a lens including a light distribution unit for controlling light distribution.

According to the present invention, the light emitted from the light source and not reflected by the reflector can be controlled by the light distribution unit. Therefore, it is possible to effectively utilize the light from the light source, which cannot be controlled by the conventional lighting equipment for vehicles.

It is sectional drawing which shows the headlight for a vehicle which concerns on 1st Embodiment. It is a partially enlarged sectional view of the headlight for a vehicle shown in FIG. It is a figure (partially enlarged sectional view) for demonstrating the light distribution lens part which concerns on a modification. It is sectional drawing which shows the headlight for a vehicle which concerns on the modification of 1st Embodiment. It is sectional drawing which shows the headlight for a vehicle which concerns on 2nd Embodiment. It is sectional drawing which shows the headlight for a vehicle which concerns on 3rd Embodiment. It is a figure which shows the inner lens which concerns on the modification. It is sectional drawing which shows the headlight for a conventional vehicle.

A preferred embodiment of the vehicle lighting fixture according to the present invention will be described below with reference to the drawings, taking as an example a vehicle headlight that illuminates the front of the vehicle. The vehicle lighting equipment according to the present invention is not limited to vehicle headlights, and is, for example, various types of vehicle use such as vehicle side lights, fog lights, back lights, tail lights, brake lights, and turn signals. It can also be applied to lighting equipment. In the following description, front, rear, top, bottom, left, and right correspond to front, rear, top, bottom, left, and right of a vehicle equipped with vehicle headlights, respectively.

FIG. 1 is a diagram for explaining the vehicle headlight A1 according to the first embodiment of the present invention. FIG. 1 is a vertical cross-sectional view (vertical cross-sectional view) of the vehicle headlight A1 as viewed from the vehicle width direction of the vehicle. In FIG. 1, the left direction in the figure shows the front direction of the vehicle headlight A1 (vehicle), and the upper direction in the figure shows the upward direction of the vehicle headlight A1 (vehicle). .. Further, in the cross-sectional display of FIG. 1, some hatching is omitted. The vehicle headlight A1 includes a housing (not shown), an outer lens (not shown), a light source 1, a heat radiating member 2, a reflector 3, and an inner lens 4. The vehicle headlights A1 are arranged in pairs on the front side of the vehicle, and are configured to illuminate the front of the vehicle with the light emitted from the light source 1. The vehicle headlight A1 may be for high beam, low beam, or high / low switching.

In the vehicle headlight A1, the housing and the outer lens define a light chamber (not shown). For example, the housing is open at least on the front side of the vehicle, and the outer lens is configured to cover the opened portion. The outer lens is made of a synthetic resin material and allows light to pass through. The light source 1, the heat radiating member 2, the reflector 3, and the inner lens 4 are arranged in the lighting chamber and attached to the housing. The shapes of the housing and the outer lens are appropriately designed according to the type of the vehicle to which the vehicle headlight A1 is mounted.

The light source 1 includes a substrate 11 and an LED (Light Emitting Diode) 12. The substrate 11 has, for example, a substantially quadrangular plate shape. Further, the substrate 11 is, for example, an aluminum substrate. The material of the substrate 11 is not limited to this. An LED 12 is attached to the lower surface 11a of the substrate 11. The light emitting surface of the LED 12 faces the lower side of the vehicle. The number of LEDs 12 arranged on the substrate 11 may be one or a plurality. Further, the LED 12 may be a cannonball type, a flux type, or a chip type. The heat radiating member 2 is in contact with the upper surface 11b of the substrate 11.

The heat radiating member 2 emits heat generated from the light source 1 (LED 12). The heat radiating member 2 is made of a metal material having good heat transfer characteristics. Examples of such metal materials include aluminum, iron, and copper. The heat radiating member 2 in the present embodiment has a plate shape, and a light source 1 (board 11) is attached to one (lower) surface. The shape of the heat radiating member 2 is not limited to a plate shape, and in order to improve heat dissipation efficiency, a fin shape is formed on one surface of the plate-shaped portion (for example, a surface opposite to the surface on which the light source 1 is attached). A sword-shaped or bellows-shaped part may be provided integrally. The size, shape, and material of the heat radiating member 2 may be appropriately designed according to the required amount of heat radiating.

The reflector 3 reflects the light incident from the light source 1. The reflector 3 in this embodiment is arranged in the space below the light source 1. Further, the reflector 3 has open upper and front portions, and the other portions are closed. The reflector 3 is formed in an arcuate curved surface shape (parabolic shape) by a metal such as aluminum or a synthetic resin. The inner surface 3a of the reflector 3 has a concave curved surface, and is subjected to reflection treatment by silver paint, aluminum vapor deposition, or the like. The inner surface 3a faces the light emitting surface of the LED 12. In the present embodiment, the light reflection angle is adjusted according to the shape of the inner surface 3a of the reflector 3 to control the light distribution of the vehicle headlight A1. With such a configuration, the light emitted from the light source 1 is reflected by the reflector 3 (inner surface 3a). Then, the reflected light due to this reflection directs in a certain direction and is incident on the inner lens 4. In the present embodiment, the light distribution is controlled so that the light reflected by the reflector 3 is emitted toward the front of the vehicle. The shape of the reflector 3 is not particularly limited as long as the light from the light source 1 is distributed in a predetermined direction by the reflector 3. That is, the shape of the reflector 3 may be appropriately changed according to the positional relationship between the light source 1 and the reflector 3, the irradiation direction of the light of the light source 1, and the like. Further, the reflector 3 may be a multi-reflector in which a reflecting surface is formed by a plurality of planar reflectors.

The inner lens 4 is arranged on the front side of the vehicle with respect to the reflector 3. The inner lens 4 is made of a transparent resin material such as acrylic. The material of the inner lens 4 is not particularly limited, and may be a translucent material such as a glass material. The inner lens 4 covers the reflector 3 when viewed from the front of the vehicle. The inner lens 4 in the present embodiment has a circular shape when viewed from the front of the vehicle, but is not limited to this. The inner lens 4 includes a transparent lens portion 41 and a light distribution lens portion 42. In the inner lens 4, the transparent lens portion 41 and the light distribution lens portion 42 are integrally formed, and the light distribution lens portion 42 is arranged on the outer edge of the transparent lens portion 41.

The transparent lens portion 41 is a portion of the inner lens 4 that allows incident light to pass through. The transparent lens portion 41 in the present embodiment is flat on both sides in the front-rear direction, and is not subjected to lens cutting processing for controlling light distribution. In the present embodiment, the reflected light from the reflector 3 enters the transparent lens portion 41 from the rear side of the vehicle and is emitted to the front side of the vehicle with almost no refraction.

The light distribution lens unit 42 is a portion of the inner lens 4 that controls light distribution. The light distribution lens unit 42 is arranged outside the reflector 3 (inner surface 3a) when viewed from the front of the vehicle, and is arranged at a non-incident position where the light reflected by the reflector 3 does not enter. The light distribution lens portion 42 is thicker than the transparent lens portion 41 in the cross section shown in FIG. 1 (the dimension in the left-right direction in FIG. 1 is large). The light distribution lens unit 42 controls the light distribution of the incident light according to its shape, and emits the incident light in the same direction as the reflected light by the reflector 3. FIG. 2 is a diagram for explaining the light distribution lens unit 42, and is a partially enlarged cross-sectional view of a part of FIG. 1. For convenience of understanding, hatching showing a cross section is omitted in FIG. As shown in the figure, the light distribution lens unit 42 has an incident surface 42a, a reflecting surface 42b, and an emitting surface 42c. In this embodiment, the incident surface 42a, the reflecting surface 42b, and the emitting surface 42c are flat, but may be curved.

Light from the light source 1 is directly incident on the incident surface 42a, and the incident light is guided to the inside of the light distribution lens unit 42. In the present embodiment, the incident surface 42a guides the light directly incident from the light source 1 into the light distribution lens portion 42 without substantially refracting the light. The incident surface 42a may refract the light directly incident from the light source 1 to guide the inside of the light distribution lens unit 42. However, in this case, the incident surface 42a is formed so that the refracted light is reflected (totally reflected) by the reflecting surface 42b described later. In the present embodiment, as shown in FIGS. 1 and 2, the edge of the reflector 3 on the front side of the vehicle and the inner lens 4 are separated from each other so that light is directly incident on the incident surface 42a from the light source 1. Have been placed. In addition, instead of separating the reflector 3, the end portion of the reflector 3 on the front side of the vehicle may be made of a transparent member, and the portion made of the translucent member may not be subjected to the reflection treatment. Even in this way, the light is directly incident on the incident surface 42a from the light source 1.

The reflecting surface 42b reflects (total reflection) the light incident on the incident surface 42a. Specifically, the reflecting surface 42b is formed so that the incident angle (angle θ in FIG. 2) of the light guided to the inside of the light distribution lens portion 42 via the incident surface 42a exceeds the critical angle. The angle θ is the inclination angle of the incident light with respect to the perpendicular line of the reflecting surface 42b. For example, when the inner lens 4 is acrylic, the critical angle when light is incident on the inner lens 4 from the air in the lamp chamber is about 42.2 °.

The light reflected by the reflecting surface 42b is incident on the emitting surface 42c, and is refracted in a predetermined direction to be emitted. In the present embodiment, the emission surface 42c is formed so as to emit the incident light in the same direction as the reflected light by the reflector 3.

The shape of the light distribution lens unit 42 is not limited to that shown in FIG. 2, and the light directly incident from the light source 1 is reflected and refracted in a predetermined direction (the same direction as the light reflected by the reflector 3). It suffices if it can be emitted. For example, the light distribution lens unit 42 may be configured as shown in FIG. Note that FIG. 3 is a diagram corresponding to the partially enlarged cross-sectional view shown in FIG. 2, and for convenience of understanding, hatching showing the cross section is omitted. In the example shown in FIG. 3, the light incident on the inside of the light distribution lens unit 42 through the incident surface 42a is repeatedly reflected by the surface facing the front of the vehicle (front surface 42d) and the surface facing the rear (rear surface 42e). .. Then, the light is emitted to the front of the vehicle from the portion formed so that the incident angle of the light incident on the front surface 42d from the inside of the light distribution lens portion 42 is equal to or less than the critical angle. The example shown in FIG. 3 is an example and is not limited to this, and the shape may be appropriately changed by using the principle of reflection and refraction at the interface between the light distribution lens unit 42 and air. good.

Next, the operation and effect of the vehicle headlight A1 according to the first embodiment will be described.

In the vehicle headlight A1, the light emitted from the light source 1 and reflected by the reflector 3 is transmitted to the front of the vehicle via the transparent lens portion 41 of the inner lens 4 as shown by the broken line arrows in FIGS. 1 and 2. It emits to. Further, a part of the light emitted from the light source 1 and not reflected by the reflector 3 is incident on the light distribution lens unit 42 as shown by the solid line arrows in FIGS. 1 and 2, and the reflected light by the reflector 3 is incident. At the non-incident position, the light distribution is controlled (reflected and refracted) by the light distribution lens unit 42, and the light is emitted in the same direction as the reflected light by the reflector 3. Specifically, in the present embodiment, as shown in FIG. 2, in the light distribution lens unit 42, the light incident on the incident surface 42a is incident on the reflecting surface 42b without being substantially refracted. Then, the light is totally reflected by the reflecting surface 42b. The light reflected by the reflecting surface 42b is incident on the emitting surface 42c, and the incident light is refracted by the emitting surface 42c in a predetermined direction (the same direction as the reflected light by the reflector 3) and emitted. Therefore, the light incident on the light distribution lens unit 42 is emitted to the front of the vehicle in the same direction as the reflected light by the reflector 3 by the light distribution control by the light distribution lens unit 42. The irradiation intensity of the vehicle headlight A1 can be improved as compared with the lighting. From the above, it is possible to effectively utilize the light from the light source 1 that was wasted in the conventional vehicle headlights.

In the vehicle headlight A1, the inner lens 4 has a circular shape when viewed from the front of the vehicle. Thereby, the appearance of the vehicle headlight A1 seen from the front of the vehicle and the irradiation range of the vehicle headlight A1 can be made equivalent to those of the well-known projector type vehicle headlight. The inner lens (projection lens) used for this projector-type vehicle headlight is thick and expensive. On the other hand, the inner lens 4 in the present embodiment is inexpensive because it can be made thinner than the projection lens. Therefore, the same design and performance as the projector-type vehicle headlight can be realized at low cost.

In the first embodiment, the case where the light emitting surface of the LED 12 faces downward and the light from the light source 1 is irradiated downward is not limited to this. For example, the light emitting surface of the LED 12 may face upward, and the light from the light source 1 may be irradiated upward. In this case, the vehicle headlight A1 has an upside-down shape in FIG.

In the first embodiment, a part of the light emitted from the light source 1 and not reflected by the reflector 3 is incident on the light distribution lens unit 42, and the other is incident on the transparent lens unit 41. That is, not only the light reflected by the reflector 3 but also the light directly incident from the light source 1 is incident on the transparent lens portion 41. A shade may be provided to block the light directly incident on the transparent lens portion 41 from the light source 1. FIG. 4 shows a vehicle headlight A1'according to this modification. The vehicle headlight A1'is provided with a shade 5 as compared with the vehicle headlight A1.

The shade 5 blocks a part of the light generated from the light source 1 as described above. The shade 5 is made of a light-shielding opaque material. Examples of such a material include a black resin material. It is not limited to this. The shade 5 may be an opaque material that can completely block light, or may be an opaque material that can partially block light. In this modification, as shown in FIG. 4, the shade 5 is arranged so as to block light emitted from the light source 1 toward the front side of the vehicle and directly incident on the transparent lens portion 41 (FIG. 4). See the alternate long and short dash arrow).

As described above, by providing the shade 5, it is possible to block the light directly incident on the transparent lens portion 41 from the light source 1. Therefore, the light emitted from the vehicle headlight A1'is the light whose light distribution is controlled by the reflector 3 or the light whose light distribution is controlled by the light distribution lens unit 42. That is, all the emitted light of the vehicle headlight A1'is light whose light distribution is controlled. Further, as shown in FIG. 4, by providing the shade 5 in front of the light source 1 so that the light source 1 can be hidden by the shade 5 when the vehicle headlight A1'is viewed from the front of the vehicle.

Next, the vehicle headlight A2 according to the second embodiment will be described. In the second embodiment, the same or similar configurations as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 5 is a diagram for explaining the vehicle headlight A2 according to the second embodiment of the present invention. FIG. 5 is a vertical cross-sectional view (vertical cross-sectional view) of the vehicle headlight A2 as viewed from the vehicle width direction of the vehicle. In FIG. 5, the left direction in the figure shows the front direction of the vehicle headlight A2 (vehicle), and the upper direction in the figure shows the upward direction of the vehicle headlight A2 (vehicle). .. Further, in the cross-sectional display of FIG. 5, some hatching is omitted. Like the vehicle headlight A1, the vehicle headlight A2 includes a housing (not shown), an outer lens (not shown), a light source 1, a reflector 3, and an inner lens 4. However, these shapes are different.

The light source 1 according to this embodiment is a halogen bulb. In addition, instead of a halogen bulb, a high-intensity discharge bubble (HID bulb) or an LED bulb may be used.

The reflector 3 according to the present embodiment has a concave shape in which the irradiation direction side (front side) of the vehicle headlight A2 is open and the rear side is closed. However, an insertion hole for inserting the light source 1 (halogen bulb) is provided in a part of the rear side. The inner surface 3a of the reflector 3 according to the present embodiment forms a rotating paraboloid with a halogen bulb inserted through the insertion hole as a target axis. Also in this embodiment, the reflector 3 reflects the light incident from the light source 1 to control the light distribution. Also in this embodiment, the shape of the reflector 3 is not particularly limited as long as the light from the light source 1 is distributed in a predetermined direction by the reflector 3.

The inner lens 4 according to the present embodiment is arranged on the front side of the vehicle with respect to the reflector 3 and is configured to cover the opening of the reflector 3. The inner lens 4 according to the present embodiment includes a transparent lens portion 41 and a light distribution lens portion 42, similarly to the inner lens 4 according to the first embodiment.

Also in this embodiment, the transparent lens portion 41 allows the reflected light from the reflector 3 to pass through. Further, the light distribution lens unit 42 reflects and refracts the incident light by the incident surface 42a, the reflecting surface 42b, and the emitting surface 42c, and distributes the light so as to be emitted in the same direction as the reflected light by the reflector 3. Therefore, also in the vehicle headlight A2, as in the vehicle headlight A1, the light emitted from the light source 1 and reflected by the reflector 3 is the light of the inner lens 4 as shown by the broken line arrow in FIG. It emits light to the front of the vehicle via the transparent lens portion 41. Further, a part of the light emitted from the light source 1 and not reflected by the reflector 3 is incident on the light distribution lens portion 42 of the inner lens 4, as shown by the solid line arrow in FIG. 5, and the incident light is incident on the reflector 3. At a non-incident position where the reflected light is not incident, the light distribution is controlled (reflected and refracted) by the light distribution lens unit 42, and the light is emitted in the same direction as the reflected light by the reflector 3. From the above, in the vehicle headlight A2 according to the second embodiment as well as the vehicle headlight A1 according to the first embodiment, the light source 1 wasted in the conventional vehicle headlight. The light from the car can be used effectively.

Also in the second embodiment, the shade 5 may be provided so that the light is not directly incident on the transparent lens portion 41 from the light source 1.

Next, the vehicle headlight A3 according to the third embodiment will be described. In the third embodiment, the same or similar configurations as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 6 is a diagram for explaining the vehicle headlight A3 according to the third embodiment of the present invention. FIG. 6 is a vertical cross-sectional view (vertical cross-sectional view) of the vehicle headlight A3 as viewed from the vehicle width direction of the vehicle. In FIG. 6, the left direction in the figure shows the front direction of the vehicle headlight A3 (vehicle), and the upper direction in the figure shows the upward direction of the vehicle headlight A3 (vehicle). .. Further, in the cross-sectional display of FIG. 6, some hatching is omitted. The vehicle headlight A3 includes a light distribution lens unit 42'instead of the light distribution lens unit 42 in the inner lens 4, as compared with the vehicle headlight A1 according to the first embodiment. In the third embodiment, the case where the light distribution lens unit 42'is applied to the vehicle headlight A1 (inner lens 4) according to the first embodiment is shown, but the vehicle according to the second embodiment is shown. It may be applied to the headlight A2 (inner lens 4).

The light distribution lens unit 42 in the vehicle headlight A1 was configured to control the light distribution directly incident from the light source 1, but the light distribution lens unit 42'in the vehicle headlight A3 has a light distribution lens unit 42'. It is configured to control the light distribution of the light incident from the light source 1 through the through lens unit 41. Therefore, as shown in FIG. 6, the light distribution lens unit 42'has a different shape from the light distribution lens unit 42 according to the first embodiment.

Next, the light distribution control of the light distribution lens unit 42'in the present embodiment will be described. A part of the light emitted from the light source 1 to the front of the vehicle is directly incident on the transparent lens portion 41 of the inner lens 4. At this time, the light irradiating the transparent lens unit 41 from the light source 1 is refracted at the interface f1 between the transparent lens unit 41 and the air (light chamber), and is incident on the inside of the transparent lens unit 41. Then, when the incident angle (α in FIG. 6) when incident on the interface f2 between the transparent lens portion 41 and the air exceeds the critical angle, the refracted light is totally reflected at the interface f2. Those that do not exceed are refracted at the interface f2 and emitted. Next, the light totally reflected at the interface f1 is incident on the interface f1 from the inside of the transparent lens portion 41. If the incident angle (angle β in FIG. 6) at this time exceeds the critical angle, total reflection occurs at the interface f1. When the interface f1 and the interface f2 are parallel to each other, the light totally reflected at the interface f2 is also totally reflected at the interface f1. That is, the angle α and the angle β match. In this way, a part of the light directly incident on the transparent lens unit 41 from the light source 1 repeats total internal reflection at the interfaces f1 and f2, and is incident on the light distribution lens unit 42'. Then, the light distribution is controlled (reflected) inside the light distribution lens unit 42', the incident angle when incident on the interface f2 becomes equal to or less than the critical angle, the light is refracted at the interface f2, and the light is emitted to the front of the vehicle.

When the light distribution lens portion 42'is not provided on the inner lens 4, a part of the light incident on the transparent lens portion 41 from the light source 1 is repeatedly totally reflected at the interface f1 and the interface f2 as described above, and the inner lens is used. It is emitted downward from the lower end of 4 (through-through lens portion 41). On the other hand, in the vehicle headlight A3 according to the third embodiment, the light from the light source 1 is incident on the light distribution lens unit 42'via the transparent lens unit 41, and the light distribution lens unit 42'. The light incident on the light source is controlled by the light distribution lens unit 42'to be emitted to the front of the vehicle. Therefore, also in the vehicle headlight A3, the light from the light source 1 that was wasted in the conventional vehicle headlight can be effectively utilized as in the first embodiment.

In the first embodiment to the third embodiment, the case where the light from the light source 1 is controlled by the reflector 3 and emitted to the front of the vehicle through the transparent lens portion 41 of the inner lens 4 has been shown. Not limited to. For example, the shape of the transparent lens portion 41 may be changed so that the light distribution is controlled by the changed inner lens 4. In this case, the light distribution may or may not be controlled by the reflector 3.

In the first embodiment to the third embodiment, the case where the inner lens 4 is provided with the transparent lens portion 41 is shown, but it is not necessary to provide the inner lens portion 41. That is, the inner lens 4 may be composed of a light distribution lens portion 42 (42') forming an annular shape when viewed from the front of the vehicle. The light distribution lens portion 42 (42') in this case is not limited to a circular ring shape, but may be a polygonal ring shape or a variant ring shape. However, since the processing of the inner lens 4 becomes complicated, it is desirable to provide the transparent lens portion 41 and integrally form the transparent lens portion 41 and the light distribution lens portion 42 (42').

In the first embodiment to the third embodiment, the case where the light distribution control is performed by the shape of the light distribution lens unit 42 (42') is shown, but the present invention is not limited to this. For example, the light distribution may be controlled by partially changing the material of the light distribution lens unit 42 (42').

In the first to third embodiments, the light distribution lens unit 42 (42') emits light in the same direction as the light reflected by the reflector 3 to irradiate the vehicle headlights A1, A2, and A3. The case where the strength is improved is shown, but the present invention is not limited to this. For example, by changing the shape of the surface of the light distribution lens unit 42 (42') facing the front side of the vehicle (the emission surface 42c in the first and second embodiments), or by providing a different lens in front of the surface (exit surface 42c). The light distribution may be controlled so as to emit light in a direction different from the light reflected by the reflector 3, or the light distribution may be controlled so as to diffuse the light as in a fisheye lens or a Fresnel lens. Further, for example, the vehicle headlights A1, A2, and A3 may be added with added values such as decorativeness, design, and aesthetics. FIG. 7 shows an example of the inner lens 4 according to such a modification, and in the inner lens 4 of the first embodiment, a lens cut process (diamond cut process) is performed on the emission surface 42c of the light distribution lens unit 42. It shows the case of application. Note that FIG. 7 shows a state in which the inner lens 4 is viewed from the front of the vehicle. In this case, since the light distribution lens unit 42 looks shining, a high-class feeling can be added. In addition, grain processing or prism processing may be performed. Further, in the above-mentioned projector type vehicle headlight, since the light from the light source is controlled by the above-mentioned projection lens, there is a limitation in changing the shape of the projection lens. However, in the vehicle headlights A1, A2, and A3, since the light from the light source is mainly controlled by the reflector 3, the shape of the inner lens 4 can be easily changed. Therefore, decoration as in the present modification can be easily performed.

The vehicle lamp according to the present invention is not limited to the above-described embodiment. The specific configuration of each part of the vehicle lamp of the present invention can be freely redesigned.

A1, A1', A2, A3: Vehicle headlight 1: Light source 11: Board 11a: Bottom surface 11b: Top surface 12: LED
2: Heat dissipation member 3: Reflector 3a: Inner surface 4: Inner lens 41: Through lens portion 42, 42': Light distribution lens portion 42a: Incident surface 42b: Reflection surface 42c: Emission surface 5: Shade f1, f2: Interface 91: Housing 92: Outer lens 93: Light source 94: Reflector 99: Light room

Claims (1)

Light source and
A reflector that reflects light from the light source,
A lens that is arranged at a non-incident position where the light reflected by the reflector is not incident and includes a light distribution unit that controls the light distribution of the light incident from the light source.
Equipped with
The lens further includes a pass-through portion into which the reflected light is incident.
In the transparent portion, both sides of the reflected light in the emission direction are flat, and the thickness in the emission direction is uniform.
A vehicle lamp characterized in that the light distribution portion is arranged on the outer edge of the transparent portion and protrudes from the transparent portion in a direction opposite to the emission direction of the reflected light .

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