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 7942534 B1

PDF
Full Text
Expired
Date of Patent:
May. 17, 2011

Filed:

Oct. 29, 2007
Applicant:

Yasunaga Miyazawa, Okaya, JP;

Inventor:

Yasunaga Miyazawa, Okaya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

A projector, includes: an illumination device that radiates plural colors of light in a time-sharing manner; a reflective optical modulator that forms, based on input image information, an optical image for each of the plural colors of light radiated from the illumination device in a time-sharing manner; a projection optical device that projects the optical images of the plural colors of light formed by the reflective optical modulator; and a controller that controls the illumination device and the reflective optical modulator, the controller including: an image information analyzer that analyzes the input image information; and an illumination time controller that dynamically changes and controls illumination time of the plural colors of light by the illumination device based on an analysis result by the image information analyzer.


Find Patent Forward Citations

Miyazawa, Yasunaga. (2011). Projector for achieving a wide varity of gradation and color representation, projection system, program and recording medium (U.S. Patent No. 7942534). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7942534

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