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 9678417 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 13, 2017

Filed:

Feb. 13, 2015
Applicant:

Casio Computer Co., Ltd., Tokyo, JP;

Inventor:

Hideyuki Kurosaki, Tachikawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); G03B 33/12 (2006.01); H04N 9/31 (2006.01); F21Y 115/30 (2016.01); F21Y 115/10 (2016.01); F21Y 113/13 (2016.01);
U.S. Cl.
CPC ...
G03B 21/204 (2013.01); G03B 21/208 (2013.01); G03B 33/12 (2013.01); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08); F21Y 2115/30 (2016.08); G03B 21/2066 (2013.01); H04N 9/3182 (2013.01);
Abstract

A projector includes a light source unit comprising a microlens array having a first area and a second area having a wider interval than that of the first area, a first light source configured to emit light to be incident on the first area, and a second light source configured to emit light to be incident on the first area and the second area, wherein the microlens array diffuses the lights emitted from the first light source and the second light source by microlenses thereof, a collective lens collecting diffuse lights diffused by the microlens array, a display device on which the diffuse lights collected by the collective lens are shone to produce projected light, a projection optical system guiding the projected light produced by the display device, and a control unit controlling the display device and the light source unit.


Find Patent Forward Citations

Kurosaki, Hideyuki. (2017). Light source unit including laser diodes as light sources and microlens array and projector (U.S. Patent No. 9678417). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9678417

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

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