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. 27, 2017

Filed:

May. 11, 2015
Applicant:

Universal Lighting Technologies, Inc., Madison, AL (US);

Inventors:

John R. Householder, Cedar Park, TX (US);

Megan Tidd, Arvada, CO (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F21V 5/08 (2006.01); F21V 5/04 (2006.01); F21Y 101/02 (2006.01);
U.S. Cl.
CPC ...
F21V 5/08 (2013.01); F21V 5/045 (2013.01); F21Y 2101/02 (2013.01);
Abstract

A lens for distributing light from a light emitter in a desired asymmetric illumination profile includes a lens body having an input side and an output side. The input side receives light from an emitter, and the output side includes primary refractive surface, total internal reflection surfaces, and a secondary refractive surface associated with the total internal refection surfaces. A primary emission axis associated with the emitter is defined through the lens body, and a transverse reference plane is positioned parallel to the primary emission axis. A desired illumination region is located on a first side of the reference plane, and a desired dark region is located on a second side of the reference plane. The primary refractive surface, the total internal reflection surfaces and the secondary refractive surface direct a substantial portion of the light from the emitter to the desired illumination region.


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