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.

Date of Patent:
Mar. 20, 2012

Filed:

May. 18, 2011
Applicants:

Barry D. Silverstein, Rochester, NY (US);

Joseph R. Bietry, Rochester, NY (US);

Robert Metzger, Fairport, NY (US);

Gary E. Nothhard, Hilton, NY (US);

Richard P. Corey, Rush, NY (US);

Inventors:

Barry D. Silverstein, Rochester, NY (US);

Joseph R. Bietry, Rochester, NY (US);

Robert Metzger, Fairport, NY (US);

Gary E. Nothhard, Hilton, NY (US);

Richard P. Corey, Rush, NY (US);

Assignee:

Eastman Kodak Company, Rochester, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/14 (2006.01); G02B 26/08 (2006.01); G02B 26/10 (2006.01); G02B 26/12 (2006.01); G02B 5/30 (2006.01); G02B 27/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

Etendue maintaining polarization switching occurs, according to various embodiments, with a mirror that quickly transitions between two positions. Light having uniform polarization is transmitted to the mirror. Light reflected off of the mirror in one of the two positions has its polarization changed, whereas light reflected off of the mirror in the other of the two positions has its polarization maintained. Thereafter, the polarization-changed light and the polarization-maintained light easily may be recombined in an entendue-maintaining manner. Because the recombined light includes two different polarization states, stereoscopic images may be generated.


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