VEHICLE LAMP

• US 20160252226A1
• Filed: 11/06/2015
• Published: 09/01/2016
• Est. Priority Date: 02/26/2015
• Status: Abandoned Application

• Current Assignee: TYC Brother Industrial Company Limited
• Original Assignee: TYC Brother Industrial Company Limited
• Inventors: SHIH, Ming-Chin, TSAI, Ming-Hsien
• Application Number:
  US14/935,063
• Publication Number:
  US 20160252226A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60Q 1/0041 of several lamps in relation to each other
• CPC Class Codes: F21S 41/24 Light guides
• CPC Class Codes: F21S 43/10 characterised by the light source
• CPC Class Codes: F21S 43/15 Strips of light sources
• CPC Class Codes: F21S 43/239 plate-shaped
• CPC Class Codes: F21S 43/243 emitting light from one or more of its extremities
• CPC Class Codes: F21S 43/249 with two or more light sources being coupled into the light guide
• CPC Class Codes: F21S 45/47 Passive cooling, e.g. using fins, thermal conductive elements or openings

Abstract

A vehicle lamp includes two light guide plates, and at least one light emitting module. Each light guide plate has two side surfaces opposite to each other in a thickness direction, and a light input surface and a light output surface interconnecting the side surfaces. A length in the thickness direction between the side surfaces of each of the light guide plates is not greater than 10 millimeters. One of the side surfaces of one of the light guide plates faces one of the side surfaces of the other one of the light guide plates, such that the light input surfaces of the light guide plates are adjacent to each other. Each light emitting module is disposed at a position corresponding to the light input surface of a corresponding light guide plate.

Claims

1. A vehicle lamp comprising:

two light guide plates, each of which has two side surfaces that are opposite to each other in a thickness direction, and a light input surface and a light output surface that interconnect said side surfaces, a length in the thickness direction between said side surfaces being not greater than 10 millimeters, one of said side surfaces of one of said light guide plates facing one of said side surfaces of the other one of said light guide plates such that said light input surfaces of said light guide plates are adjacent to each other; and

at least one light emitting module including

a circuit board that faces said light input surfaces of said light guide plates, and that has a length in the thickness direction not smaller than a total length of said light guide plates in the thickness direction,

a plurality of light emitting members that are mounted on said circuit board, each of said light emitting members being disposed at a position that corresponds to said light input surface of a corresponding one of said light guide plates, and

a heat sink that is connected to said circuit board.

2. The vehicle lamp as claimed in claim 1, further comprising:

a housing that retains said light guide plates and said at least one light emitting module therein; and

a cover member that is coupled to said housing, and that has a block portion covering a portion of said light output surfaces of said light guide plates, and a transparent portion for permitting passage of light emitted from said at least one light emitting module there through.

3. The vehicle lamp as claimed in claim 1, wherein the lengths of said light guide plates in the thickness direction are the same.

4. The vehicle lamp as claimed in claim 1, wherein the one of said side surfaces of the one of said light guide plates clings to the one of said side surfaces of the other one of said light guide plates.

5. The vehicle lamp as claimed in claim 2, wherein the one of said side surfaces of the one of said light guide plates clings to the one of said side surfaces of the other one of said light guide plates.

6. The vehicle lamp as claimed in claim 3, wherein the one of said side surfaces of the one of said light guide plates clings to the one of said side surfaces of the other one of said light guide plates.

7. The vehicle lamp as clamed in claim 1, wherein said light emitting members emit lights of different colors.

8. The vehicle lamp as claimed in claim 1, wherein said light input surface and said light output surface of each of said light guide plates are spaced apart from each other.

9. The vehicle lamp as claimed in claim 8, wherein:

said light input surface of each of said light guide plates has an input surface portion formed with a recess; and

said at least one light emitting module further includes a light converging member that has a plurality of converging portions, each of said converging portions being received in said recess of said input surface portion of said light input surface of a respective one of said light guide plates, and having an input face that faces a respective one of said light emitting members, and an output face that faces said input surface portion of said light input surface of the respective one of said light guide plates.

10. The vehicle lamp as claimed in claim 8, wherein:

said light input surface of each of said light guide plates has a plurality of input surface portions arranged in a longitudinal direction that is transverse to the thickness direction; and

said vehicle lamp comprises a plurality of said light emitting modules arranged in the longitudinal direction and. disposed at positions that correspond to a corresponding one of said input surface portions of said light guide plates.

11. The vehicle lamp as claimed in claim 10, wherein:

each of said input surface portions of said light input surfaces of said light guide plates is formed with a recess;

each of said light emitting modules further includes a light converging member that has a plurality of converging portions, each of said converging portions being received in said recess of a corresponding one of said input surface portions of said light input surfaces of said light guide plates, and having an input face that faces a corresponding one of said light emitting members of said light emitting modules, and an output face that faces the corresponding one of said input surface portions of said light input surfaces of said light guide plates.

12. The vehicle lamp as claimed in claim 1, wherein:

said light input surface of each of said light guide plates has a plurality of input surface portions, said input surface portions of one of said light guide plates being aligned respectively with said input surface portions of the other one of said light guide plates;

said vehicle lamp comprises a plurality of said light emitting modules, the length of said circuit board of each of said light emitting modules in the thickness direction being not smaller than a total length of a respective aligned pair of said input surface portions of said light input surfaces of said light guide plates in the thickness direction.