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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 10648653 B1

PDFFull Text
Date of Patent:
May. 12, 2020

Filed:

Oct. 13, 2016

Wavelength conversion device, illumination device, and projector

Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Kaname Nagatani, Matsumoto, JP;

Kazuya Usuda, Matsumoto, JP;

Assignee:

SEIKO EPSON CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Anh T Mai

Assistant Examiner:

Fatima N Farokhrooz

Int. Cl.
CPC ...
F21V 29/65 (2015.01); F21V 29/502 (2015.01); F21S 2/00 (2016.01); F21V 7/22 (2018.01); G03B 21/16 (2006.01); H04N 5/74 (2006.01); F21V 29/67 (2015.01); F21V 29/71 (2015.01); F21V 29/76 (2015.01); F21V 29/78 (2015.01); G03B 21/20 (2006.01);
U.S. Cl.
CPC ...
F21V 29/502 (2015.01); F21S 2/00 (2013.01); F21V 7/22 (2013.01); F21V 29/65 (2015.01); F21V 29/67 (2015.01); F21V 29/71 (2015.01); F21V 29/76 (2015.01); F21V 29/78 (2015.01); G03B 21/16 (2013.01); G03B 21/204 (2013.01); H04N 5/74 (2013.01);
Abstract

A wavelength conversion device, an illumination device, and a projector that can efficiently cool a phosphor. A wavelength conversion device includes a substrate including a phosphor layer in which a phosphor is included, a rotating device configured to rotate the substrate, a circulating device that circulates a cooling gas to the substrate, and a housing configured to house the substrate and the circulating device. The housing includes a partition wall configured to separate a first space in which the cooling gas is circulated to the substrate by the circulating device and a second space in which the cooling gas radially delivered from the substrate according to the rotation of the substrate circulates.

Find Patent Forward Citations

Nagatani, Kaname. (2020). Wavelength conversion device, illumination device, and projector (U.S. Patent No. 10648653). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10648653

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

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