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. 29, 2003
Filed:
Apr. 19, 2001
Applicant:
Inventor:
Shane Chen, Camas, WA (US);
Assignee:
CID, Inc., Camas, WA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 2/160 ; G03B 2/156 ; G03B 2/114 ; G02B 3/08 ; G02B 2/710 ;
U.S. Cl.
CPC ...
G03B 2/160 ; G03B 2/156 ; G03B 2/114 ; G02B 3/08 ; G02B 2/710 ;
Abstract
A reflective projection screen has in a first aspect a plurality of reflective elements. The upper surface of the reflective elements is either coated or textured to interfere with reflection of light from the upper surface to an adjacent reflective element. In a second aspect of the invention, a screen is provided that reflects light in the vertical direction like a plane surface, while reflecting light in the horizontal direction back toward the light source. In a third aspect of the invention, a projection system projects a three-dimensional image.