The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 16, 2012
Filed:
Mar. 04, 2010
Applicant:
Takeshi Takezawa, Matsumoto, JP;
Inventor:
Takeshi Takezawa, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light source device, includes: an arc tube which has a light emission portion containing a pair of electrodes disposed along an illumination axis, and a pair of sealing portions extending from both sides of the light emission portion; a reflector which has a reflection portion disposed in the vicinity of one of the sealing portions (the one sealing portion) of the arc tube for reflecting light emitted from the arc tube toward an illumination area; and a rectifying portion disposed between the light emission portion and the reflector for regulating a flow direction of cooling air and transmitting the light from the arc tube.