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:
Oct. 16, 2012
Filed:
Oct. 05, 2009
Alban N. Lescure, Redmond, WA (US);
Markus Duelli, Seattle, WA (US);
Mark O. Freeman, Snohomish, WA (US);
Witold R. Teller, Pullman, WA (US);
Alban N. Lescure, Redmond, WA (US);
Markus Duelli, Seattle, WA (US);
Mark O. Freeman, Snohomish, WA (US);
Witold R. Teller, Pullman, WA (US);
Microvision, Inc., Redmond, WA (US);
Abstract
An imaging system (), such as a scanned laser projection system, includes one or more laser sources () configured to produce one or more light beams (), and a light modulator () configured to produce images () from the light beams (). A polarization diversity element (), which can be manufactured from a birefringent material or from a polymerized liquid crystal layer, is disposed within the imaging system (). The polarization diversity element () is configured to alter the polarization of an incident beam to create a transmitted beam comprising diverse polarization patterns, thereby reducing speckle in projected images.