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.:
Date of Patent:
May. 22, 2018
Filed:
Dec. 19, 2014
Applicant:
Philips Lighting Holding B.v., Eindhoven, NL;
Inventors:
Assignee:
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 7/06 (2006.01); F21K 9/62 (2016.01); G02B 6/42 (2006.01); F21V 8/00 (2006.01); G02B 27/09 (2006.01); F21K 9/61 (2016.01); F21V 7/00 (2006.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
F21K 9/62 (2016.08); F21K 9/61 (2016.08); F21V 7/0091 (2013.01); F21V 7/06 (2013.01); G02B 6/0001 (2013.01); G02B 6/0031 (2013.01); G02B 6/0096 (2013.01); G02B 6/4214 (2013.01); G02B 27/0994 (2013.01); F21Y 2115/10 (2016.08);
Abstract
A mixing optic combines a variety of features to enhance the brightness and uniformity of the light emitted from a combination of different color light emitting sources. The mixing optic may include a parabolic reflector that redirects low-angle emissions, a reflective waveguide that mixes the light spatially, and a diffuser plate that mixes the light angularly. In an embodiment, the output of the mixing optic exhibits a substantially Lambertian output pattern of a substantially uniform mix of colors, exhibiting, for example, the light output pattern of a single white light source.