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Patent Searching and Data


Title:
LIGHT SOURCE UNIT AND PROJECTOR
Document Type and Number:
Japanese Patent JP2011216431
Kind Code:
A
Abstract:

To provide a light source device enabling proper temperature control of an arc tube, having a simplified construction, while suppressing the occurrence of noise.

The light source device 352 includes: the arc tube 11, having a first sealed part 17 on one side of a light emitting part; a sub reflecting mirror 13 having a first extended part 23 covering the first sealed part 17; a main reflecting mirror 12, electrodes provided across an insulator 13 for generating ion wind with voltage applied thereto; and feeding members fitted to at least one of the main reflecting mirror and the sub reflecting mirror to contact the electrodes. The electrodes are a first electrode 18, and a second electrode provided between the first sealed part and the first extended part. The feeding members are a first feeding member 24 contacting the first electrode, and a second feeding member 25 contacting the second electrode. The first electrode arranged apart from the second electrode to the side of the light-emitting part uses the ion wind for air to flow between the sub reflecting surface and the light-emitting part.


Inventors:
TAKAGI KUNIHIKO
HASE KANAME
SHIMIZU TETSUO
EGAWA AKIRA
Application Number:
JP2010085856A
Publication Date:
October 27, 2011
Filing Date:
April 02, 2010
Export Citation:
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Assignee:
SEIKO EPSON CORP
International Classes:
F21S2/00; G03B21/14; H01J61/52; F21Y101/00
Attorney, Agent or Firm:
Masahiko Ueyanagi
Osamu Suzawa
Kazuhiko Miyasaka