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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 9991236 B1

PDFFull Text
Date of Patent:
Jun. 05, 2018

Filed:

Jul. 09, 2015

Led lamp device having a fluorescent element shaped for uniform light conversion

Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Hiroshi Imamura, Osaka, JP;

Ryoji Yokotani, Osaka, JP;

Assignee:

PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka, JP;

Attorneys:

Patterson Intellectual Property Law P.C.

Gary L. Montle

Jerry Turner Sewell

Primary Examiner:

David Porta

Assistant Examiner:

Djura Malevic

Int. Cl.
CPC ...
F21V 9/00 (2018.01); H01L 25/075 (2006.01); H01L 33/50 (2010.01); H01L 33/48 (2010.01); H01L 33/58 (2010.01);
U.S. Cl.
CPC ...
H01L 25/0753 (2013.01); H01L 33/486 (2013.01); H01L 33/505 (2013.01); H01L 33/508 (2013.01); H01L 33/58 (2013.01); H01L 2924/0002 (2013.01);
Abstract

An LED lamp device includes a plurality of LED elements separately mounted on a substrate and effective to emit light having a first wavelength. A fluorescent element includes a fluorescent material excitable by light emitted from the LED elements to emit light of a second wavelength, and is arranged to cover each LED element with no gaps provided between the fluorescent element and the substrate. The fluorescent element is shaped in accordance with the positioning of the LED elements and the spaces defined there-between such that a proportion of light of the first wavelength with respect to light of the second wavelength is substantially uniform irrespective of light exit direction.

Find Patent Forward Citations

Imamura, Hiroshi. (2018). Led lamp device having a fluorescent element shaped for uniform light conversion (U.S. Patent No. 9991236). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9991236

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

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