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.

Date of Patent:
Jun. 04, 2019

Filed:

Aug. 06, 2014
Applicant:

Signify Holding B.v., Eindhoven, NL;

Inventors:
Assignee:

SIGNIFY HOLDING B.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21K 9/61 (2016.01); F21V 3/06 (2018.01); F21V 8/00 (2006.01); F21K 9/232 (2016.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
F21K 9/232 (2016.08); F21K 9/61 (2016.08); G02B 6/0045 (2013.01); G02B 6/0076 (2013.01); F21V 3/061 (2018.02); F21V 3/062 (2018.02); F21V 2200/40 (2015.01); F21Y 2115/10 (2016.08); G02B 6/0075 (2013.01);
Abstract

A light emitting device () comprising at least one light source (), and a light guide unit comprising at least a first light guide () and a second light guide () each comprising a light input end surface () arranged to, when in operation, receive light emitted from the at least one light source and a light output surface (), at least a part () of the first light guide and the second light guide near the light output end surface being bent in a bending radius (R), at least the first light guide of the light guide unit being ring-shaped in cross section, and the first light guide and the second light guide of the light guide unit being arranged in a nested relationship.


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