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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 9223071 B1

PDFFull Text
Expired
Date of Patent:
Dec. 29, 2015

Filed:

Aug. 21, 2013

Light-emitting device, vehicle headlamp and illumination apparatus

Applicant:

Sharp Kabushiki Kaisha, Osaka-shi, JP;

Inventors:

Yoshiyuki Takahira, Osaka, JP;

Koji Takahashi, Osaka, JP;

Yosuke Maemura, Osaka, JP;

Tomohiro Sakaue, Osaka, JP;

Kensei Toyota, Osaka, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Osaka-Shi, JP;

Attorney:

Morrison & Foerster LLP

Primary Examiner:

Jason Moon Han

Int. Cl.
CPC ...
F21V 9/00 (2015.01); F21V 8/00 (2006.01); F21S 8/10 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0003 (2013.01); F21S 48/1145 (2013.01); F21S 48/1225 (2013.01); F21S 48/1241 (2013.01); F21S 48/1317 (2013.01); G02B 6/0008 (2013.01);
Abstract

A headlamp includes the laser chip which emits excitation light, a light-emitting section which contains a phosphor, and an optical rod. The excitation light emitted from the laser chip is optically guided by the optical rod, and the light output from the optical rod enters the light-emitting section. An edge is present in the light intensity distribution of the light-emitting section.

Find Patent Forward Citations

Takahira, Yoshiyuki. (2015). Light-emitting device, vehicle headlamp and illumination apparatus (U.S. Patent No. 9223071). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9223071

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

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