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.:

US 7826128 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 02, 2010

Filed:

Sep. 04, 2008
Applicants:

Akira Shirai, Hino, JP;

Hirokazu Nishino, Akishima, JP;

Yoshiaki Horikawa, Hachioji, JP;

Fusao Ishii, Menlo Park, CA (US);

Inventors:

Akira Shirai, Hino, JP;

Hirokazu Nishino, Akishima, JP;

Yoshiaki Horikawa, Hachioji, JP;

Fusao Ishii, Menlo Park, CA (US);

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

The present invention provides a projection apparatus, comprising: a light source for emitting illumination light; at least one spatial light modulator with a plurality of movable mirrors corresponding to pixels to be displayed, for performing a modulation of the illumination light through operation of the movable mirrors; a light source control unit performing a modulation control of the light source; and a spatial light modulator control unit generating, from an input image signal, a control signal for driving the spatial light modulator, wherein: the light source control unit adjusts a pulse emission frequency of an emission pulse of the illumination light emitted from the light source while corresponding to an oscillation frequency of the movable mirrors.


Find Patent Forward Citations

Shirai, Akira. (2010). Projection display system with varying light source (U.S. Patent No. 7826128). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7826128

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