Temperature-controlled laser light source device and projector device incorporating the laser light source device

Patent metadata

Field	Value
Publication number	US-9488358-B2
Application number	US-201414552216-A
Country	US
Kind code	B2
Filing date	Nov 24, 2014
Priority date	Feb 7, 2014
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

A laser light source device includes: a laser light source module; a pipe through which a cooling refrigerant flows; a heat block which thermally joins the laser light source module and the pipe to each other; and a vessel which is arranged below the heat block and receives dew condensation water which is generated on a surface of the heat block by condensation and drops. The vessel has an opening portion which opens upward, and a plan view profile of the opening portion is larger than a plan view profile of the heat block.

First claim

What is claimed is:

1. A light source device comprising:
a laser light source module;
a pipe through which a cooling refrigerant flows;
a heat block which thermally joins said laser light source module and said pipe to each other; and
a vessel which is arranged below said heat block and receives dew condensation water which is generated on a surface of said heat block by condensation and drops, wherein
said vessel has an opening portion which opens upward, and
a plan view profile of said opening portion is larger than a plan view profile of said heat block.

2. The light source device according to claim 1 , further comprising:
a plurality of said laser light source modules; and
a plurality of said heat blocks, wherein
said plurality of heat blocks respectively thermally join respective sets of laser light source modules formed by dividing said plurality of laser light source modules and said pipe to each other,
said light source device further comprising
a holding member which fixes and holds said plurality of heat blocks thereon, and has a plan view profile larger than a plan view profile of said plurality of heat blocks.

3. The light source device according to claim 2 , wherein
said vessel is arranged below said holding member, and
the plan view profile of said opening portion is larger than the plan view profile of said holding member.

4. The light source device according to claim 2 , wherein
said plurality of heat blocks are arranged adjacent to each other with a predetermined gap therebetween.

5. The light source device according to claim 1 , further comprising:
an electric terminal portion for supplying electricity to said laser light source module,
wherein said electric terminal portion is arranged above said heat block.

6. The light source device according to claim 1 , further comprising:
an electric terminal portion for supplying electricity to said laser light source module,
wherein said heat block has a groove portion formed in a peripheral portion of a joint portion with said laser light source module, and
said electric terminal portion is arranged above said groove portion.

7. The light source device according to claim 1 , further comprising:
a drain pipe which is connected to said vessel and discharges dew condensation water in said vessel to an outside.

8. The light source device according to claim 1 , further comprising:
a desiccant arranged in an inside of said vessel.

9. A projector device comprising:
said light source device according to claim 1 ;
an image light generating part which generates an image light by spatially modulating a laser beam emitted from said light source device; and
a projection optical system which projects said image light.

Assignees

• Mitsubishi Electric Corp

Inventors

• Hirose Tatsuro

Classifications

• H04N9/3144

  Cooling systems (cooling of liquid crystal cells in general G02F1/133382; cooling of projectors not peculiar to the presence of an electronic spatial light modulator G03B21/16) · CPC title

• F21Y2115/30

  Semiconductor lasers · CPC title

• F21V29/58

  characterised by the coolants · CPC title

• G03B21/2033

  LED or laser light sources · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title