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. 15, 2008
Filed:
Sep. 29, 2006
Robert R. Christensen, Salt Lake City, UT (US);
Forrest L. Williams, Sandy, UT (US);
Allen H. Tanner, Sandy, UT (US);
Robert R. Christensen, Salt Lake City, UT (US);
Forrest L. Williams, Sandy, UT (US);
Allen H. Tanner, Sandy, UT (US);
Evans & Sutherland Computer Corporation, Salt Lake City, UT (US);
Abstract
A system and method is disclosed for reducing visibility of image artifacts caused by diffractive elements in a laser projector having a structured diffractive device. At least two diffracted orders of light can be selected from light emitted from the structured diffractive device using a spatial light filter. The polarization of at least one of the selected diffracted orders can be changed with respect to another selected diffracted order. The selected diffracted order can be recombined to form an image having reduced visible image artifacts.