Illumination device for vehicle having rotatable first shade and one piece component with shades and reflector disposed in front of first shade

Patent metadata

Field	Value
Publication number	US-9964276-B2
Application number	US-201615179640-A
Country	US
Kind code	B2
Filing date	Jun 10, 2016
Priority date	Jun 10, 2015
Publication date	May 8, 2018
Grant date	May 8, 2018

Abstract

An illumination device to be mounted on a vehicle includes a light source, an optical member, a holder, a first reflector, a first shade, a driving source, a power feeding member, a second reflector, a second shade, and a third shade. The second reflector is disposed between the optical member and the first shade and configured to reflect a part of the light reflected by the first reflector toward the optical member. The second shade is disposed between the optical member and the first shade so as to block a part of the light which is not blocked by the first shade. The third shade disposed to block sunlight which passes through the optical member and reaches at least one of the holder and the power feeding member. The second reflector, the second shade and the third shade are parts of one-piece component formed of the same material.

First claim

The invention claimed is:

1. An illumination device to be mounted on a vehicle comprising:
a light source;
an optical member configured to irradiate light emitted from the light source in a predetermined direction;
a holder made of resin and configured to support the optical member;
a first reflector configured to reflect a part of the light emitted from the light source toward the optical member;
a first shade disposed between the light source and the optical member and capable of blocking a part of the light emitted from the light source by being rotated or pivoted about an axis;
a driving source configured to generate a force for rotating or pivoting the first shade;
a power feeding member made of resin and configured to supply power to the driving source;
a second reflector disposed between the optical member and the first shade and configured to reflect a part of the light reflected by the first reflector toward the optical member;
a second shade disposed between the optical member and the first shade so as to block a part of the light which is not blocked by the first shade; and
a third shade disposed to block sunlight which passes through the optical member and reaches at least one of the holder and the power feeding member,
wherein the second reflector, the second shade and the third shade are parts of one-piece component formed of the same material.

2. An illumination device to be mounted on a vehicle comprising:
a light source;
an optical member configured to irradiate light emitted from the light source in a predetermined direction;
a holder made of resin and configured to support the optical member;
a first reflector configured to reflect a part of the light emitted from the light source toward the optical member;
a first shade disposed between the light source and the optical member and capable of blocking a part of the light emitted from the light source by being rotated or pivoted about an axis;
a driving source configured to generate a force for rotating or pivoting the first shade;
a power feeding member made of resin and configured to supply power to the driving source;
a second reflector disposed between the optical member and the first shade and configured to reflect a part of the light reflected by the first reflector toward the optical member;
a second shade disposed between the optical member and the first shade so as to block a part of the light which is not blocked by the first shade; and
a third shade disposed to block sunlight which passes through the optical member and reaches at least one of the holder and the power feeding member,
wherein the second reflector is a part of a first member formed of a first material,
wherein at least one of the second shade and the third shade is a part of a second member formed of a second material different from the first material, and
wherein the first member and the second member are integrated by a bonding.

3. The illumination device according to claim 1 ,
wherein the first shade is a rotary shade.

4. The illumination device according to claim 1 ,
wherein the illumination device further comprises a support member for supporting the holder, the first shade and the driving source, and
wherein the support member comprises a portion disposed between the first shade and the second reflector.

5. The illumination device according to claim 4
wherein the support member is pivotable about a swivel axis, and
wherein the swivel axis extends between the first shade and the second reflector.

Assignees

• Koito Mfg Co Ltd

Inventors

• Yamamoto Teruaki

Classifications

• 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

• F21S41/43

  characterised by the shape thereof · CPC title

• F21S45/10 Primary

  Protection of lighting devices (cooling of lighting devices F21S45/40; waterproofing of lighting devices F21S45/50) · CPC title

• F21S41/365

  successively reflecting the light · CPC title