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:
Jul. 28, 2009
Filed:
May. 24, 2005
Applicants:
Mark David Peterson, Lake Oswego, OR (US);
Jeffrey Alan Gohman, Hillsboro, OR (US);
Inventors:
Mark David Peterson, Lake Oswego, OR (US);
Jeffrey Alan Gohman, Hillsboro, OR (US);
Assignee:
InFocus Corporation, Wilsonville, OR (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/56 (2006.01); G03B 21/60 (2006.01); G03B 21/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
The ultra-thin rear projection display device described herein includes a wide angle lens system and one or more planar mirrors that are parallel to a screen on which an image is to be displayed. In one embodiment, the screen that has multiple groove angles to provide better illumination than screens with a single groove angle.