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:
Aug. 06, 2019
Filed:
Mar. 27, 2015
3m Innovative Properties Company, St. Paul, MN (US);
Nicholas A. Johnson, Burnsville, MN (US);
Gilles J. Benoit, Minneapolis, MN (US);
John A. Wheatley, Lake Elmo, MN (US);
Kenneth A. Epstein, St. Paul, MN (US);
David Scott Thompson, West Lakeland, MN (US);
Michael E. Lauters, Hudson, WI (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Optical systems are disclosed. More particularly, optical systems including an asymmetric turning film () with at least a first () and second light source () are disclosed. Selection of geometries for the asymmetric turning film can enable different output viewing angles depending on the selective illumination of the first light source, the second light source, or both. The optical systems disclosed may be suitable in both luminaires and displays.