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:
Jan. 22, 2008
Filed:
Jul. 05, 2005
Applicant:
George M. Mihalakis, San Jose, CA (US);
Inventor:
George M. Mihalakis, San Jose, CA (US);
Assignee:
Next Wave Optics, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/14 (2006.01); G03B 21/28 (2006.01); G02F 1/00 (2006.01); G02B 5/30 (2006.01); G02B 27/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical engine architecture that operates as either a two-imager or a three-imager optical engine. The optical engine uses a first PBS cube and a second PBS cube having an optical axis between them. In between the first PBS cube and second PBS cube are two quarter wave plates and a dichroic mirror, where the dichroic mirror is disposed between the two quarter wave plates. In the three imager embodiment, a retarder is disposed between the second PBS cube and the quarter wave plate closest to the second PBS cube. In the two imager embodiment, this retarder is not necessary.