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:
Feb. 24, 2004
Filed:
Dec. 19, 2001
Applicant:
Inventors:
Takaaki Ozawa, Matsumoto, JP;
Yoshiji Iwadare, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 1/300 ;
U.S. Cl.
CPC ...
F21V 1/300 ;
Abstract
Since a light source lamp ( ) and a reflector ( ) of a lamp unit ( ) are respectively fixed to a lamp housing ( ) in a mutually independent manner, an attachment for attaching and fixing the light source lamp ( ) is not necessary to be formed on the reflector ( ) as an optical component, so that the shape of the reflector ( ) can be simplified and accuracy of a reflection surface ( ), especially at a bottom thereof, can be easily improved, thereby enhancing illumination of the lamp unit ( ).
Ozawa, Takaaki. (2004). Lamp unit, projector, and fixing method of light source lamp and reflector (U.S. Patent No. 6695461). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6695461
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile