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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 10663846 B1

PDFFull Text
Date of Patent:
May. 26, 2020

Filed:

Aug. 21, 2017

Image projection unit and filter box

Applicant:

Sony Corporation, Tokyo, JP;

Inventor:

Takeaki Hirasawa, Tokyo, JP;

Assignee:

SONY CORPORATION, Tokyo, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Ryan D Howard

Int. Cl.
CPC ...
G03B 21/16 (2006.01); H04N 9/31 (2006.01); G03B 21/14 (2006.01); H05K 7/20 (2006.01); H04N 5/74 (2006.01); G03B 21/00 (2006.01);
U.S. Cl.
CPC ...
G03B 21/16 (2013.01); G03B 21/00 (2013.01); G03B 21/14 (2013.01); G03B 21/145 (2013.01); H04N 5/74 (2013.01); H04N 9/3144 (2013.01); H05K 7/20 (2013.01);
Abstract

To provide an image projection unit that can reduce the frequency of filter replacement and extend the life of an image projection device main body. Provided is an image projection unit including: a main body () of an image projection device; and a filter box (A) that can be attached/detached to/from the main body (), and at least covers an air inlet of the main body. A box-side filter provided for the filter box (A) has a total area larger than an area of a main body filter provided at the air inlet of the main body ().

Find Patent Forward Citations

Hirasawa, Takeaki. (2020). Image projection unit and filter box (U.S. Patent No. 10663846). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10663846

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

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