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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 10365553 B1

PDFFull Text
Date of Patent:
Jul. 30, 2019

Filed:

Mar. 22, 2019

Projector-use luminescent wheel and manufacturing method therefor, and projector-use light emitting device

Applicant:

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

Inventors:

Tamio Ando, Otsu, JP;

Tadahito Furuyama, Otsu, JP;

Shunsuke Fujita, Otsu, JP;

Assignee:

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

Attorney:

Keating and Bennett, LLP

Primary Examiner:

William C Dowling

Int. Cl.
CPC ...
G03B 21/14 (2006.01); H04N 9/31 (2006.01); G03B 21/20 (2006.01); G02B 26/00 (2006.01); B32B 15/20 (2006.01); G02B 27/14 (2006.01); B32B 17/06 (2006.01); B32B 7/12 (2006.01); B32B 9/00 (2006.01); B32B 37/06 (2006.01); B32B 5/16 (2006.01); B32B 37/12 (2006.01); G02B 1/11 (2015.01); B32B 38/00 (2006.01);
U.S. Cl.
CPC ...
G03B 21/204 (2013.01); B32B 5/16 (2013.01); B32B 7/12 (2013.01); B32B 9/005 (2013.01); B32B 15/20 (2013.01); B32B 17/061 (2013.01); B32B 37/06 (2013.01); B32B 37/12 (2013.01); G02B 26/008 (2013.01); G02B 27/141 (2013.01); B32B 38/0012 (2013.01); B32B 2255/205 (2013.01); B32B 2264/10 (2013.01); B32B 2264/107 (2013.01); B32B 2307/204 (2013.01); B32B 2307/412 (2013.01); B32B 2307/416 (2013.01); B32B 2307/422 (2013.01); B32B 2307/732 (2013.01); B32B 2315/08 (2013.01); B32B 2551/00 (2013.01); G02B 1/11 (2013.01);
Abstract

Provided is a luminescent wheel for a projector, which has a novel structure in which a phosphor layer is hard to break even if its thickness is reduced; a manufacturing method therefor; and a light emitting device for a projector. A luminescent wheel for a projector includes: a phosphor layer () which has a first principal surface () and a second principal surface () located on an opposite side to the first principal surface () and is capable of being excited by the entry of excitation light to emit fluorescence; a first glass layer () provided on the first principal surface () of the phosphor layer (); and a second glass layer () provided on the second principal surface () of the phosphor layer ().

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