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:
Sep. 15, 2009
Filed:
Feb. 04, 2005
Shohei Fujisawa, Matsumoto, JP;
Hiroyuki Kobayashi, Matsumoto, JP;
Toru Terashima, Matsumoto, JP;
Kazuhiro Tanaka, Matsumoto, JP;
Takeshi Takezawa, Matsumoto, JP;
Tomonobu Machida, Shiosiri, JP;
Yuji Takado, Matsumoto, JP;
Shohei Fujisawa, Matsumoto, JP;
Hiroyuki Kobayashi, Matsumoto, JP;
Toru Terashima, Matsumoto, JP;
Kazuhiro Tanaka, Matsumoto, JP;
Takeshi Takezawa, Matsumoto, JP;
Tomonobu Machida, Shiosiri, JP;
Yuji Takado, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A lamp device and a projector having the lamp device eliminated of light leaking in a direction opposite to a reflecting direction at a rear end of an encapsulation fixing an arc tube on a reflection mirror is simply and inexpensively provided. An arc tube and a reflection mirror are provided. The arc tube has encapsulations one of which is inserted in a cylinder of the reflection mirror thereby securing the encapsulation and the cylinder together by an adhesive. The bulb of the arc tube and the other encapsulation are positioned on a side close to a reflection surface of the reflection mirror. The encapsulation inserted in the cylinder and positioned on a side opposite to the reflection surface has an end at least at an end face of which is covered with the adhesive thereby providing light shield.