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. 31, 2016
Filed:
Mar. 27, 2012
Applicants:
David G. Freier, Saint Paul, MN (US);
Thomas R. J. Corrigan, Saint Paul, MN (US);
Inventors:
David G. Freier, Saint Paul, MN (US);
Thomas R. J. Corrigan, Saint Paul, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 7/00 (2006.01); F21V 7/05 (2006.01); F21S 11/00 (2006.01); G02B 27/14 (2006.01); F21V 8/00 (2006.01); G02B 6/28 (2006.01);
U.S. Cl.
CPC ...
F21V 7/05 (2013.01); F21S 11/007 (2013.01); G02B 6/0096 (2013.01); G02B 27/14 (2013.01); F21V 2200/40 (2015.01); G02B 6/0018 (2013.01); G02B 6/2817 (2013.01);
Abstract
The disclosure generally relates to highly efficient light duct light extractors that are capable of extracting a portion of the light propagating within a light duct with nearly 100 percent efficiency. In particular, the described light extractors are configured in a 'Tee' shape with a reflective diverter element.