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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 12631303 B1

PDFFull Text
Date of Patent:
May. 19, 2026

Filed:

Nov. 18, 2024

Lighting devices having optical waveguides for controlled light distribution

Applicant:

Cree Lighting Usa Llc, Racine, WI (US);

Inventors:

Kurt Wilcox, Libertyville, IL (US);

Jin Hong Lim, Morrisville, NC (US);

Curt Progl, Raleigh, NC (US);

Steve Wilcenski, Cary, NC (US);

Zongjie Yuan, Libertyville, IL (US);

Assignee:

CREE LIGHTING USA LLC, Racine, WI (US);

Attorneys:

J. Clinton Wimbish

Maynard Nexsen PC

Primary Examiner:

Christopher E Dunay

Int. Cl.
CPC ...
F21S 8/08 (2006.01); F21V 5/00 (2018.01); F21V 8/00 (2006.01); F21V 21/116 (2006.01); G02B 6/24 (2006.01); G02B 6/26 (2006.01); G02B 6/30 (2006.01); G02B 6/32 (2006.01); G02B 6/34 (2006.01); F21V 29/51 (2015.01); F21W 131/103 (2006.01); F21Y 113/13 (2016.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
F21S 8/088 (2013.01); F21S 8/086 (2013.01); F21V 5/00 (2013.01); F21V 21/116 (2013.01); G02B 6/0006 (2013.01); G02B 6/0016 (2013.01); G02B 6/0021 (2013.01); G02B 6/0031 (2013.01); G02B 6/0035 (2013.01); G02B 6/0036 (2013.01); G02B 6/0045 (2013.01); G02B 6/0055 (2013.01); G02B 6/24 (2013.01); G02B 6/262 (2013.01); G02B 6/305 (2013.01); G02B 6/32 (2013.01); G02B 6/34 (2013.01); F21V 29/51 (2015.01); F21W 2131/103 (2013.01); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08);
Abstract

In one aspect, optical elements and luminaires employing optical elements are described herein. In some embodiments, an optical element comprises a planar light transmissive body comprising a light input surface and a light output surface opposite the input surface, and light redirection features arranged over the light input surface and the light output surface, the light redirection features comprising refractive facets, reflective facets, facets supporting total internal reflection within the planar light transmissive body, or combinations thereof.

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