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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 9812493 B1

PDFFull Text
Date of Patent:
Nov. 07, 2017

Filed:

Jul. 14, 2014

Lighting device

Applicants:

Citizen Electronics Co., Ltd., Yamanashi-ken, JP;

Citizen Watch Co., Ltd., Tokyo, JP;

Inventor:

Takakazu Yano, Yamanashi-ken, JP;

Assignees:

CITIZEN ELECTRONICS CO., LTD., Yamanashi-Ken, JP;

CITIZEN WATCH CO., LTD., Tokyo, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Khaja Ahmad

Int. Cl.
CPC ...
H01L 27/15 (2006.01); H01L 33/50 (2010.01); H01L 33/56 (2010.01); H01L 33/58 (2010.01); H01L 25/075 (2006.01); H01L 33/44 (2010.01); H01L 33/60 (2010.01); F21V 3/04 (2006.01); F21Y 105/12 (2016.01); F21Y 105/10 (2016.01); F21K 9/232 (2016.01); F21Y 103/10 (2016.01); F21Y 115/10 (2016.01); F21Y 113/13 (2016.01);
U.S. Cl.
CPC ...
H01L 27/15 (2013.01); H01L 25/0753 (2013.01); H01L 33/505 (2013.01); H01L 33/56 (2013.01); H01L 33/58 (2013.01); F21K 9/232 (2016.08); F21V 3/0418 (2013.01); F21V 3/0436 (2013.01); F21Y 2103/10 (2016.08); F21Y 2105/10 (2016.08); F21Y 2105/12 (2016.08); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08); H01L 33/44 (2013.01); H01L 33/60 (2013.01); H01L 2224/32225 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48227 (2013.01); H01L 2224/73265 (2013.01);
Abstract

In a first aspect of the present invention, a lighting device () includes a first light emitter () that includes a first light-emitting element () with a p-n junction (), and a first side cover () partly covering a peripheral side surface (-) of the first light-emitting element (); a second light emitter () that includes a second light-emitting element () with a p-n junction () and a second side cover () partly covering a peripheral side surface (-) of the second light-emitting element (), and the first light emitter () and the second light emitter () are disposed to face each other at uncovered side portions () that are uncovered by the first side cover () and the second side cover (). It is disclosed that the first side cover () covers a quarter or more area of the peripheral side surface (-) of the first light-emitting element ().

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