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:
Feb. 04, 2020
Filed:
Nov. 06, 2015
Applicant:
Quarkstar Llc, Las Vegas, NV (US);
Inventors:
Victor E. Isbrucker, Sturgeon Point, CA;
Ingo Speier, Saanichton, CA;
Assignee:
Quarkstar LLC, Las Vegas, NV (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); F21V 7/00 (2006.01); F21S 8/02 (2006.01); F21S 8/00 (2006.01); F21W 131/301 (2006.01); F21Y 103/10 (2016.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
G02B 6/0045 (2013.01); F21S 8/026 (2013.01); F21V 7/0016 (2013.01); F21V 7/0025 (2013.01); F21V 7/0091 (2013.01); F21S 8/00 (2013.01); F21V 7/0033 (2013.01); F21W 2131/301 (2013.01); F21Y 2103/10 (2016.08); F21Y 2115/10 (2016.08); G02B 6/0073 (2013.01);
Abstract
A troffer luminaire including (i) a light guide luminaire module having an optical extractor, and (ii) a reflector, where the reflector is configured to reflect light output by the optical extractor in a backward angular range toward a target surface in a forward angular range, and where a combination of the optical extractor and the first reflector is configured such that a ratio of maximum luminance to minimum luminance across the first reflector is less than a first predetermined ratio.