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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 9448416 B1

PDFFull Text
Expired
Date of Patent:
Sep. 20, 2016

Filed:

Jul. 13, 2011

Light source device and projection-type display device

Applicants:

Hiroko Chifu, Tokyo, JP;

Motoyasu Utsunomiya, Tokyo, JP;

Inventors:

Hiroko Chifu, Tokyo, JP;

Motoyasu Utsunomiya, Tokyo, JP;

Assignee:

NEC Display Solutions, Ltd., Tokyo, JP;

Attorney:

McGinn IP Law Group, PLLC

Primary Examiner:

Sultan Chowdhury

Int. Cl.
CPC ...
G03B 21/00 (2006.01); G02B 27/48 (2006.01); G03B 21/20 (2006.01); G03B 33/12 (2006.01); G02B 27/10 (2006.01); H04N 9/31 (2006.01); F21V 13/08 (2006.01); G03B 21/16 (2006.01); G02B 27/12 (2006.01);
U.S. Cl.
CPC ...
G02B 27/48 (2013.01); F21V 13/08 (2013.01); G02B 27/1033 (2013.01); G03B 21/16 (2013.01); G03B 21/204 (2013.01); G03B 21/208 (2013.01); G03B 21/2013 (2013.01); G03B 33/12 (2013.01); H04N 9/3111 (2013.01); H04N 9/3161 (2013.01); G02B 27/126 (2013.01);
Abstract

A light source device includes: a laser light source; a circular substrate which has fluorescent body that emits light by using light from the laser light source as excitation light; a wheel motor which rotates circular substrate; a dichroic prism which transmits the light from fluorescent body while reflecting the light from the laser light source; a diffusion plate which diffuses the light from the laser light source; and a plate spring which interconnects diffusion plate and wheel motor.

Find Patent Forward Citations

Chifu, Hiroko. (2016). Light source device and projection-type display device (U.S. Patent No. 9448416). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9448416

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

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