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:
Aug. 19, 2014

Filed:

May. 14, 2008
Applicants:

Tetsuro Mizushima, Osaka, JP;

Tatsuo Itoh, Osaka, JP;

Akira Koruzuka, Osaka, JP;

Kazuhisa Yamamoto, Osaka, JP;

Inventors:

Tetsuro Mizushima, Osaka, JP;

Tatsuo Itoh, Osaka, JP;

Akira Koruzuka, Osaka, JP;

Kazuhisa Yamamoto, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/00 (2006.01); G03B 3/00 (2006.01); H04N 9/31 (2006.01); G03B 21/14 (2006.01); G02B 26/08 (2006.01); G02B 27/09 (2006.01); G02B 27/48 (2006.01);
U.S. Cl.
CPC ...
G03B 21/00 (2013.01); H04N 9/317 (2013.01); H04N 9/3161 (2013.01); H04N 9/3102 (2013.01); G03B 21/14 (2013.01); G02B 26/0875 (2013.01); G02B 27/095 (2013.01); G02B 27/48 (2013.01); H04N 9/3197 (2013.01);
Abstract

A laser projector includes a laser light source; a two-dimensional light modulator which modulates light from the laser light source; and a projection optical system which projects images onto a display plane by expanding the light modulated by the two-dimensional light modulator. Shift of a display position of the two-dimensional light modulation element and shift of the projection optical system are performed in synchronization with each other so that display positions of the images on the display plane are made substantially identical to each other. Thereby, speckle noise is sufficiently removed, and high-grade images are displayed.


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