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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 11199755 B1

PDFFull Text
Date of Patent:
Dec. 14, 2021

Filed:

May. 05, 2020

Illumination device with light guide having angled light-accepting surfaces

Applicant:

Lumileds Llc, San Jose, CA (US);

Inventors:

Varun Dev Kakkar, Eindhoven, NL;

Arjen Van Der Sijde, Eindhoven, NL;

Erno Fancsali, Heusden-Zolder, BE;

Chunxia Feng, Shanghai, CN;

Nicola Bettina Pfeffer, Eindhoven, NL;

Assignee:

Lumileds LLC, San Jose, CA (US);

Attorney:

Schwegman Lundberg & Woessner, P.A.

Primary Examiner:

Kevin Quarterman

Int. Cl.
CPC ...
G03B 15/05 (2006.01); F21V 8/00 (2006.01); H04N 5/225 (2006.01);
U.S. Cl.
CPC ...
G03B 15/05 (2013.01); G02B 6/003 (2013.01); G02B 6/0018 (2013.01); G02B 6/0038 (2013.01); G02B 6/0073 (2013.01); H04N 5/2256 (2013.01); G03B 2215/0539 (2013.01); G03B 2215/0567 (2013.01); G03B 2215/0575 (2013.01); G03B 2215/0582 (2013.01); G03B 2215/0589 (2013.01);
Abstract

A device includes a light-emitting device (LED) having at least two vertical light-emitting sides, and a ring-shaped light guide having a bottom side, a top side comprising a light-emitting surface, an inner sidewall, and an outer sidewall defining an indentation having at least two vertical in-coupling surfaces mated to the at least two vertical light-emitting sides of the LED.

Find Patent Forward Citations

Kakkar, Varun. (2021). Illumination device with light guide having angled light-accepting surfaces (U.S. Patent No. 11199755). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11199755

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

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