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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 11306897 B1

PDFFull Text
Date of Patent:
Apr. 19, 2022

Filed:

Oct. 11, 2020

Lighting systems generating partially-collimated light emissions

Applicant:

Ecosense Lighting Inc., Los Angeles, CA (US);

Inventors:

Chris P. Latsis, Rancho Mission Viejo, CA (US);

Elizabeth Rodgers, Long Beach, CA (US);

Paul Pickard, Acton, CA (US);

Sana Ashraf, Glendale, CA (US);

Xin Zhang, Los Angeles, CA (US);

Richard Wu, Morgan Hill, CA (US);

Raghuram L. V. Petluri, Cerritos, CA (US);

Assignee:

ECOSENSE LIGHTING INC., Los Angeles, CA (US);

Attorney:

Jay M. Brown

Primary Examiner:

Mary Ellen Bowman

Int. Cl.
CPC ...
F21V 7/04 (2006.01); F21V 5/10 (2018.01); F21V 9/38 (2018.01); F21V 13/14 (2006.01); F21V 7/00 (2006.01); F21Y 115/10 (2016.01); F21V 9/08 (2018.01);
U.S. Cl.
CPC ...
F21V 7/04 (2013.01); F21V 5/10 (2018.02); F21V 9/38 (2018.02); F21V 13/14 (2013.01); F21V 7/0091 (2013.01); F21V 9/08 (2013.01); F21Y 2115/10 (2016.08);
Abstract

Lighting system including bowl reflector, visible-light source, central reflector, and optically-transparent body. Bowl reflector has central axis, and rim defining emission aperture, and first visible-light-reflective surface defining portion of cavity in bowl reflector. First visible-light-reflective surface includes parabolic surface. Visible-light source is located in cavity and configured for generating visible-light emissions from semiconductor light-emitting device. Central reflector includes second visible-light-reflective surface, having convex flared funnel shape and having first peak facing toward visible-light source. Optically-transparent body has first base being spaced apart from second base and having side wall extending between first and second bases. Concave flared funnel-shaped surface of second base faces toward convex flared funnel-shaped second visible-light reflective surface of central reflector. First base includes central region having convex paraboloidal-shaped surface and second peak facing toward visible-light source.

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