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:
Sep. 13, 2016

Filed:

Apr. 29, 2013
Applicant:

Whelen Engineering Company, Inc., Chester, CT (US);

Inventor:

Todd J. Smith, Deep River, CT (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 7/00 (2006.01); F21V 29/00 (2015.01); F21V 5/08 (2006.01); F21V 7/04 (2006.01); F21V 7/09 (2006.01); F21V 13/04 (2006.01); F21V 29/507 (2015.01); F21V 29/74 (2015.01); F21V 29/89 (2015.01); F21W 131/10 (2006.01); F21Y 101/02 (2006.01); F21Y 103/00 (2016.01);
U.S. Cl.
CPC ...
F21V 7/00 (2013.01); F21S 4/28 (2016.01); F21V 5/08 (2013.01); F21V 7/005 (2013.01); F21V 7/04 (2013.01); F21V 7/09 (2013.01); F21V 13/04 (2013.01); F21V 29/004 (2013.01); F21V 29/507 (2015.01); F21V 29/74 (2015.01); F21V 29/89 (2015.01); F21W 2131/1005 (2013.01); F21Y 2101/02 (2013.01); F21Y 2103/003 (2013.01);
Abstract

An asymmetrical optical assembly employs reflecting surfaces and a lens to combine the light from a plurality of LED lamps into an illumination pattern useful in a floodlight or work light. The reflecting surfaces and lens optical element are not symmetrical with respect to a plane bisecting the optical assembly and including the optical axes of the LED light sources. Some light from the LED light sources is redirected from its emitted trajectory into the desired illumination pattern, while a significant portion of the light from the LED light sources is permitted to exit the optical assembly without redirection. Minimizing the number of optical elements employed and the redirection of light enhances the efficiency of the resulting light assembly.


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