Vehicle lamp

Patent metadata

Field	Value
Publication number	US-9488328-B2
Application number	US-201414507314-A
Country	US
Kind code	B2
Filing date	Oct 6, 2014
Priority date	Oct 11, 2013
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

There is provided a vehicle lamp including: a light source; a lens disposed on a front side of the light source and having a front surface and a rear surface which is opposite to the front surface and faces the light source, wherein the lens has a convex lens shape, and a curvature of the rear surface is larger than that of the front surface; and a reflector disposed on a rear side of the lens and configured to reflect direct light emitted from the light source toward the lens. The vehicle lamp is configured to form a light distribution pattern by controlling a deflection of the direct light using the lens.

First claim

What is claimed is:

1. A vehicle lamp comprising:
a light source;
a lens disposed on a front side of the light source and having a front surface and a rear surface which is opposite to the front surface and faces the light source, wherein the lens has a convex lens shape, and a curvature of the rear surface is larger than that of the front surface; and
a reflector disposed on a rear side of the lens and reflects light emitted from the light source toward the lens as reflected light, and
wherein at least one reflective surface of the reflector is formed from a plurality of offset reflective surfaces, each of which reflects light from the light source towards the lens.

2. The vehicle lamp according to claim 1 ,
wherein an entirety of the portions of the rear surface of the lens that are disposed opposite the reflector has a linear cross-sectional shape.

3. A vehicle lamp comprising:
a light source;
a lens disposed on a front side of the light source and having a front surface and a rear surface which is opposite to the front surface and faces the light source, wherein the lens has a convex lens shape, and a curvature of the rear surface is larger than that of the front surface;
a reflector disposed on a rear side of the lens and configured to reflect direct light emitted from the light source toward the lens; and
a panel member disposed around the lens,
wherein the vehicle lamp is configured to form a light distribution pattern by controlling a deflection of the direct light using the lens,
wherein the panel member is formed with a wall surface portion extending forward from near an outer peripheral edge of the lens,
at least a portion of the reflector is disposed on one side with respect to an axis while the wall surface portion is disposed on the other side with respect to the axis, wherein the axis extends in a forward and rearward direction so as to pass through the light source, and
said at least the portion of the reflector is configured to reflect the light toward the wall surface portion.

4. A vehicle lamp comprising:
a light source;
a lens disposed on a front side of the light source and having a front surface and a rear surface which is opposite to the front surface and faces the light source, wherein the lens has a convex lens shape, and a curvature of the rear surface is larger than that of the front surface; and
a reflector disposed on a rear side of the lens and configured to reflect light emitted from the light source toward the lens as reflected light,
wherein the vehicle lamp is configured to form a light distribution pattern by controlling a deflection of the light emitted by the light source using the lens,
wherein the reflector is disposed around the light source,
wherein all of the reflected light reflected by the reflector is directed toward an axis, and
wherein the axis extends in a forward and rearward direction so as to pass through the light source.

5. The vehicle lamp according to claim 1 ,
wherein the lens is disposed on the optical axis of the vehicle lamp, and
wherein portions of the lens on both sides of the optical axis deflect direct light from the light source away from the optical axis of the vehicle lamp.

6. The vehicle lamp according to claim 3 ,
wherein the lens is disposed on the axis, and
wherein portions of the lens on both sides of the axis deflect direct light from the light source away from the axis.

7. The vehicle lamp according to claim 4 ,
wherein the lens is disposed on the axis, and
wherein portions of the lens on both sides of the axis deflect direct light from the light source away from the axis.

8. The vehicle lamp according to claim 1 ,
wherein the lens deflects the reflected light from the reflector on both sides of the light source towards an optical axis of the vehicle lamp.

Assignees

• Koito Mfg Co Ltd

Inventors

• Sakashita Kazuhisa

Classifications

• F21S41/143 Primary

  the main emission direction of the LED being parallel to the optical axis of the illuminating device · CPC title

• F21S45/47

  Passive cooling, e.g. using fins, thermal conductive elements or openings · CPC title

• F21S41/27

  Thick lenses · CPC title

• F21S41/336

  with discontinuity at the junction between adjacent areas · CPC title

• F21S45/48

  with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device · CPC title