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. 19, 2004
Filed:
Jun. 05, 2002
Barry D. Silverstein, Rochester, NY (US);
Gary E. Nothhard, Rochester, NY (US);
Andrew F. Kurtz, Rochester, NY (US);
Xiang-Dong Mi, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A display apparatus ( ) including a light source ( ) for forming a beam of light ( ). A pre-polarizer ( ) polarizes the beam of light ( ) to provide a polarized beam of light. A wire grid polarization beamsplitter ( ) receives the polarized beam of light and transmits the polarized beam of light which has a first polarization, and reflects the polarized beam of light which has a second polarization. A reflective spatial light modulator ( ) selectively modulates the polarized beam of light that has a first polarization to encode image data thereon in order to form a modulated beam ( ) and reflects the modulated beam back to the wire grid polarization beamsplitter ( ). A compensator ( ) is located between the wire grid polarization beamsplitter ( ) and the reflective spatial light modulator ( ) for conditioning oblique and skew rays of the modulated beam ( ). The wire grid polarization beamsplitter ( ) reflects the compensated modulated beam ( ) and the wire gird polarization beamsplitter ( ) is rotated in plane to optimize the contrast. A polarization analyzer ( ) removes residual light of the opposite polarization state from the compensated modulated beam ( ). Image-forming optics ( ) form an image from the compensated modulated beam ( ).