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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 10419730 B1

PDFFull Text
Date of Patent:
Sep. 17, 2019

Filed:

Jun. 11, 2015

Image projection optical unit and projector

Applicant:

Konica Minolta, Inc., Chiyoda-ku, JP;

Inventor:

Masahiro Terada, Nishinomiya, JP;

Assignee:

KONICA MINOLTA, INC., Tokyo, JP;

Attorney:

Cozen O'Connor

Primary Examiner:

Cara E Rakowski

Assistant Examiner:

Danell L Owens

Int. Cl.
CPC ...
H04N 9/31 (2006.01); G02B 5/04 (2006.01); G02B 26/02 (2006.01); G02B 26/08 (2006.01); G02B 27/14 (2006.01); G03B 21/00 (2006.01); G03B 21/16 (2006.01); G03B 33/06 (2006.01); G03B 21/20 (2006.01);
U.S. Cl.
CPC ...
H04N 9/3105 (2013.01); G02B 5/04 (2013.01); G02B 26/02 (2013.01); G02B 26/0833 (2013.01); G02B 27/149 (2013.01); G03B 21/008 (2013.01); G03B 21/16 (2013.01); G03B 21/2066 (2013.01); G03B 33/06 (2013.01);
Abstract

An image projection optical unit includes a digital micromirror device and a prism optical system. The digital micromirror device is configured to drive micromirrors, which are subjected to ON/OFF control, with respect to two axes. The prism optical system is configured to emit, to an image projection side, ON light reflected at the micromirror in an ON state among emitted light the intensity of which has been modulated by the digital micromirror device. An optical path, which is configured to emit, to the image projection side in a direction different from the ON light, OFF light reflected at the micromirror in an OFF state among the emitted light the intensity of which has been modulated by the digital micromirror device, is secured in the prism optical system.

Find Patent Forward Citations

Terada, Masahiro. (2019). Image projection optical unit and projector (U.S. Patent No. 10419730). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10419730

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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