Vehicle lamp

Patent metadata

Field	Value
Publication number	US-10267476-B2
Application number	US-201715842096-A
Country	US
Kind code	B2
Filing date	Dec 14, 2017
Priority date	Dec 15, 2016
Publication date	Apr 23, 2019
Grant date	Apr 23, 2019

Abstract

A lamp includes a plurality of light sources arranged in parallel, a projection lens through which light emitted from the plurality of light sources is transmitted, and a first inter-light source reflector and a second inter-light source reflector which are disposed so as to sandwich a line connecting the light sources adjacent to each other and which are configured to reflect a part of the light emitted from the light sources toward the projection lens.

First claim

The invention claimed is:

1. A lamp comprising:
a plurality of light sources arranged in parallel,
a projection lens through which light emitted from the plurality of light sources is transmitted, and
a first inter-light source reflector and a second inter-light source reflector which are disposed in between individual light sources of the plurality of light sources and which sandwich a line connecting the light sources adjacent to each other and which are configured to reflect a part of the light emitted from the plurality light sources toward the projection lens.

2. The lamp according to claim 1 further comprising a pair of reflectors formed along an arrangement direction of the plurality of light sources and disposed so as to sandwich the plurality of light sources from upper and lower sides thereof.

3. The lamp according to claim 2 ,
wherein the first inter-light source reflector is formed integrally with one of the pair of reflectors, and
wherein the second inter-light source reflector is formed integrally with the other of the pair of reflectors.

4. The lamp according to claim 1 ,
wherein the first inter-light source reflector includes a plurality of first inter-light source reflectors and the second inter-light source reflector includes a plurality of second inter-light source reflectors, and the first inter-light source reflector and the second inter-light source reflector are arranged in parallel along an arrangement direction of the plurality of light sources, and
wherein leading ends of the plurality of first inter-light source reflectors on both end sides of the first inter-light source reflector and leading ends of the plurality of second inter-light source reflectors on both end sides of the second inter-light source reflector are positioned gradually closer to the projection lens than leading ends of the plurality of first inter-light source reflectors disposed at a center of the first inter-light source reflector and leading ends of the plurality of second inter-light source reflectors disposed at a center of the second inter-light source reflector.

5. A lamp comprising:
a first light source which emits a first light,
a second light source which is disposed below the first light source and emits a second light,
a projection lens which is disposed in front of the first light source and the second light source and through which the first light and the second light are transmitted, and
a shade which is disposed between the first light source and the second light source and which shields a part of the first light,
wherein the shade comprises:
a first concave reflective surface that extends from a side of the first light source toward the projection lens and reflects a part of the first light forward, and
a second concave reflective surface that extends from a side of the second light source toward the projection lens and reflects a part of the second light forward,

wherein a normal line of an emitting surface of the first light source faces obliquely toward a lower front of the lamp, and
wherein a normal line of an emitting surface of the second light source faces obliquely toward an upper front of the lamp.

6. The lamp according to claim 5 , wherein a focal point of the projection lens is formed between a front end of the shade and the projection lens.

7. The lamp according to claim 5 , wherein in a vertical cross-section of the lamp, the first light source and the second light source are arranged at positions that are asymmetrical with respect to an optical axis of the projection lens.

8. The lamp according to claims 5 , wherein at least one of the first light reflected by the first reflective surface and the second light reflected by the second reflective surface is reflected forward with a small divergence angle.

9. The lamp according to claim 5 further comprising:
a third reflective surface covering an upper side of the first light source, and
a fourth reflective surface covering a lower side of the second light source.

10. The lamp according to claim 9 , wherein at least one of the first light reflected by the third reflective surface and the second light reflected by the fourth reflective surface is diverged.

11. The lamp according to claim 5 , wherein at least one of the first light source and the second light source includes an LED array.

12. The lamp according to claim 5 , wherein a front end of the shade is gradually recessed rearward from left and right ends thereof toward a center thereof.

Assignees

• Koito Mfg Co Ltd

Inventors

• Ugajin Yuta
• Takada Kenichi
• Hanada Akira
• Shimizu Takaya

Classifications

• F21S45/47

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

• F21S45/435

  circulating the gas within a closed system · CPC title

• F21S41/663

  by switching light sources (by switching incandescent light sources F21S41/162) · CPC title

• F21S41/39

  Attachment thereof (achieving variable light distribution by movable reflectors F21S41/675) · CPC title

• F21S41/321

  the reflector being a surface of revolution or a planar surface, e.g. truncated · CPC title