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.:
Date of Patent:
Aug. 22, 2017
Filed:
Nov. 09, 2015
Stanley Electric Co., Ltd., Meguro-ku, Tokyo, JP;
Mamoru Miyachi, Okegawa, JP;
Ryosuke Kawai, Yokohama, JP;
STANLEY ELECTRIC CO., LTD., Tokyo, JP;
Abstract
A light-emitting diode apparatus includes a support substrate; and a light-emitting diode array formed of multiple light-emitting diodes arranged two-dimensionally on the support substrate, constituting a light distribution center having a highest brightness in the light-emitting diode array, wherein the multiple light-emitting diodes are divided into a plurality of control units, drive currents of which can be individually controlled, wherein the plurality of control units include a plurality of composite control units in each of which a plurality of light-emitting diodes are connected in series, and wherein among the plurality of light-emitting diodes in each of the composite control units, a light-emitting diode which is positioned farther from the light distribution center has a larger light-emitting area than that of a light-emitting diode which is positioned nearer from the light distribution center.