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:
Jul. 24, 2012

Filed:

Oct. 09, 2009
Applicants:

Akira Shirai, Tokyo, JP;

Yoshihiro Maeda, Tokyo, JP;

Fusao Ishii, Pittsburgh, PA (US);

Inventors:

Akira Shirai, Tokyo, JP;

Yoshihiro Maeda, Tokyo, JP;

Fusao Ishii, Pittsburgh, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/00 (2006.01); G02F 1/29 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides image projection system implemented with a spatial light modulator, for modulating an illumination light projected from a light source wherein said spatial light modulator comprising an image projection system implemented with a spatial light modulator for modulating an illumination light projected from a light source wherein said spatial light modulator comprising: at least two electrically conductive layers functioning as two different electrical wirings and said conductive layers having respectively a first and a second longitudinal directions overlapping and crossing each other; and a fixed electric potential layer electrically connected to a fixed electric potential, wherein the two different conductive layers and fixed electric potential layer overlapping one another and disposed at a location along a light path of the illumination light emitted from the light source to block said illumination light.


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