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:
Apr. 26, 2011

Filed:

Feb. 18, 2009
Applicants:

Fusao Ishii, Pittsburgh, PA (US);

Naoya Sugimoto, Tokoy, JP;

Hirotoshi Ichikawa, Tokyo, JP;

Yoshihiro Maeda, Tokyo, JP;

Inventors:

Fusao Ishii, Pittsburgh, PA (US);

Naoya Sugimoto, Tokoy, JP;

Hirotoshi Ichikawa, Tokyo, JP;

Yoshihiro Maeda, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/00 (2006.01); G02B 26/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a spatial light modulator, comprising a mirror modulating a light emitted from a light source, wherein the mirror is further controlled to operate with at least three stationary states whereby an image is projected with a gray scale expression through a combination of modulation of the light operated in the three stationary states.


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