Vehicle lamp

Patent metadata

Field	Value
Publication number	US-9625117-B2
Application number	US-201414890753-A
Country	US
Kind code	B2
Filing date	Apr 23, 2014
Priority date	May 13, 2013
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

A vehicle lamp includes a first semiconductor light emitting device, a second semiconductor light emitting device and a heat sink having a device mounting portion on which the first semiconductor light emitting device and the second semiconductor light emitting device are mounted. The heat sink is formed so as to define a lamp compartment which the first semiconductor light emitting device and the second semiconductor light emitting device face and a space which is defined outside the lamp compartment. The device mounting portion has a first device disposing surface and a second device disposing surface on which the first semiconductor light emitting device and the second semiconductor light emitting device are disposed, respectively, and a recess portion which defines a space which is opened towards the space defined outside the lamp compartment.

First claim

What is claimed is:

1. A vehicle lamp, characterized by comprising:
a plurality of semiconductor light emitting devices; and
a heat sink having a device mounting portion where the plurality of semiconductor light emitting devices are mounted, and characterized in that
the heat sink is formed so as to define a first space which the semiconductor light emitting devices stand to face and a second space which is different from the first space, and in that
the device mounting portion has a plurality of device disposing surfaces where the plurality of semiconductor light emitting devices are individually disposed and a recess portion which defines a third space which is opened towards the second space.

2. The vehicle lamp according to claim 1 , wherein
the recess portion is formed as deep as rear sides of the semiconductor light emitting devices.

3. The vehicle lamp according to claim 1 , wherein
the heat sink has a first heat dissipating fin which extends outwards of the lamp, and in that
the first heat dissipating fin is exposed out of a space which is defined by a lamp body and an outer cover.

4. The vehicle lamp according to claim 1 , wherein
the plurality of semiconductor light emitting devices have a first semiconductor light emitting device and a second semiconductor light emitting device and include further:
a first optical member configured to shine light emitted by the first semiconductor light emitting device towards the front of the lamp as a low beam; and
a second optical member configured to shine light emitted by the second semiconductor light emitting device towards the front of the lamp as at least part of a high beam.

5. The vehicle lamp according to claim 1 , wherein
the device mounting portion has a second heat dissipating fin which extends towards the front of the vehicle.

Assignees

• Koito Mfg Co Ltd

Inventors

• Saito Norikazu

Classifications

• F21S41/435

  Hoods or cap-shaped · CPC title

• F21S41/148

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

• F21S41/39

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

• B60Q1/0683 Primary

  Adjustable by rotation of a screw · CPC title

• F21S41/321

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