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. 15, 2011
Filed:
Jun. 28, 2006
Yoshihiro Yokote, Hirakata, JP;
Yoshihiro Yokote, Hirakata, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
An optical device includes a light source, a light valve and a projection lens configured to enlarge an image to be displayed on the light valve. The light valve is disposed in the vicinity of an object plane of the projection lens. The light source illuminates a peripheral portion more brightly than an optical axis portion, in a plane parallel to the object plane located in the vicinity of the object plane of the projection lens. The optical axis portion is a portion where an optical axis passes through and the peripheral portion is a portion located in the periphery of an optical axis portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile