Vehicular lamp

Patent metadata

Field	Value
Publication number	US-9423087-B2
Application number	US-201414457253-A
Country	US
Kind code	B2
Filing date	Aug 12, 2014
Priority date	Aug 12, 2013
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

Abstract

A vehicular lamp has a light source attachment flat surface having a plurality of light source attachment portions, a plurality of light sources attached to the plurality of light source attachment portions, and a plurality of parabolic reflectors. Each of the plurality of parabolic reflectors reflect light from a corresponding one of the light sources in a predetermined optical axis direction. The light source attachment flat surface is tilted with respect to an optical axis of the reflector so as to be higher on a front side of the lamp than on a rear side of the lamp.

First claim

The invention claimed is:

1. A vehicular lamp comprising:
a light source attachment flat surface that faces downward, and that comprises having a plurality of light source attachment portions;
a plurality of light sources attached to the plurality of light source attachment portions; and
a plurality of parabolic reflectors,
wherein each of the plurality of parabolic reflectors reflects light from a corresponding one of the light sources in a predetermined optical axis direction, and
wherein the light source attachment flat surface is tilted with respect to an optical axis of the plurality of reflectors so as to be higher on a front side of the lamp than on a rear side of the lamp.

2. The vehicular lamp according to claim 1 ,
wherein the light source attachment flat surface comprises:
a first light source attachment portion to which a first light source of the plurality of light sources is attached, and
a second light source attachment portion to which a second light source of the plurality of light sources is attached,

wherein the plurality of reflectors comprises:
a first reflector that reflects light from the first light source, and
a second reflector that reflects light from the second light source,

wherein the first reflector extends from a front end of the second reflector toward a front of the lamp, and
wherein the first light source attachment portion and the second light source attachment portion are placed on the light source attachment flat surface so that the first light source is placed at a focal point of the first reflector and the second light source is placed at a focal point of the second reflector.

3. The vehicular lamp according to claim 2 , wherein an f-number of a reflective surface of the second reflector is smaller than an f-number of a reflective surface of the first reflector.

4. A vehicular lamp, comprising:
a light source attachment flat surface comprising a first light source attachment portion and a second light source attachment portion;
a first light source attached to the first light source attachment portion;
a second light source attached to the second light source attachment portion;
a parabolic first reflector that reflects light from the first light source to a front of the lamp; and
a parabolic second reflector that reflects light from the second light source to the front of the lamp,
wherein the first reflector extends from a front end of the second reflector toward the front of the lamp, and
wherein the first light source attachment portion and the second light source attachment portion are placed on the light source attachment flat surface so that the first light source is placed at a focal point of the first reflector and the second light source is placed at a focal point of the second reflector.

5. The vehicular lamp according to claim 4 , wherein an f-number of a reflective surface of the second reflector is smaller than an f-number of a reflective surface of the first reflector.

Assignees

• Koito Mfg Co Ltd

Inventors

• Yamamoto Ippei

Classifications

• F21S41/151

  arranged in one or more lines · CPC title

• F21S41/148

  the main emission direction of the LED being perpendicular to the optical axis · CPC title

• F21W2102/00

  Exterior vehicle lighting devices for illuminating purposes · CPC title

• F21S43/14

  Light emitting diodes [LED] · CPC title

• F21W2107/10

  for land vehicles · CPC title