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:
Dec. 25, 2018
Filed:
Aug. 29, 2016
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Timothy J. Nevitt, Red Wing, MN (US);
Michael F. Weber, Shoreview, MN (US);
John A. Wheatley, Lake Elmo, MN (US);
Matthew E. Sousa, Eagan, MN (US);
Tao Liu, Woodbury, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); F21V 8/00 (2006.01); F21V 7/04 (2006.01); F21V 13/08 (2006.01); G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133605 (2013.01); F21V 7/04 (2013.01); F21V 13/08 (2013.01); G02B 6/0055 (2013.01); G02B 6/0096 (2013.01); G02F 1/133603 (2013.01); G02F 1/133615 (2013.01); G02B 5/305 (2013.01);
Abstract
A backlight includes a front and back reflector forming a light recycling cavity and one or more light source members disposed to emit light into the light recycling cavity. The front reflector being partially reflective to provide an output illumination area. The front reflector has a blue sloped transmission spectra, at normal incidence with a range among bin values from 15% to 100%.