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:
Apr. 06, 2004
Filed:
Jul. 03, 2002
Eisaku Shouji, Tokyo, JP;
NEC Viewtechnology, Ltd., Tokyo, JP;
Abstract
A projector device is provided which is capable of reducing its costs by making it possible to increase luminance of outgoing light from a rod integrator with an output from a light source being remained unchanged and by making it possible to achieve a compact illuminating optical system using a shortened total length of the rod integrator. Notches each having a predetermined angle or a convex portion is formed in a vicinity of a light incident face and in a vicinity of a light outgoing face of a rod integrator. A sloped line produced at an angle formed by one portion of each of the notches on the light incident side relative to a center line is approximately parallel to a light incident line produced at an angle formed by incident light relative to the center line.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile