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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 9733557 B1

PDFFull Text
Expired
Date of Patent:
Aug. 15, 2017

Filed:

Oct. 21, 2014

Fluorescent wheel for projectors and light emitting device for projectors

Applicant:

Nippon Electric Glass Co., Ltd., Otsu-shi, Shiga, JP;

Inventors:

Tadahito Furuyama, Otsu, JP;

Tamio Ando, Otsu, JP;

Shunsuke Fujita, Otsu, JP;

Assignee:

NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;

Attorney:

Keating and Bennett, LLP

Primary Examiner:

Thomas M Sember

Int. Cl.
CPC ...
G03B 21/20 (2006.01); F21V 29/00 (2015.01); G02B 26/00 (2006.01); F21V 29/502 (2015.01); H04N 9/31 (2006.01); G02B 5/08 (2006.01); G03B 21/16 (2006.01);
U.S. Cl.
CPC ...
G03B 21/204 (2013.01); F21V 29/502 (2015.01); G02B 5/0808 (2013.01); G02B 26/008 (2013.01); G03B 21/16 (2013.01); H04N 9/3114 (2013.01); H04N 9/3144 (2013.01); H04N 9/3158 (2013.01);
Abstract

Provided is a fluorescent wheel for a projector capable of suppressing the heating of the phosphor layer and a light emitting device for a projector using the same. The fluorescent wheel for a projector includes: a phosphor layer (); an annular ceramic substrate () which includes a first principal surface provided with the phosphor layer () and a second principal surface located on an opposite side to the first principal surface and has a higher thermal conductivity than the phosphor layer (); and a reflective layer () provided on the second principal surface of the ceramic substrate ().

Find Patent Forward Citations

Furuyama, Tadahito. (2017). Fluorescent wheel for projectors and light emitting device for projectors (U.S. Patent No. 9733557). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9733557

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

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