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:
Jan. 18, 2022
Filed:
Nov. 09, 2018
3m Innovative Properties Company, St. Paul, MN (US);
Robert A. Yapel, Oakdale, MN (US);
Joseph T. Aronson, Menomonie, WI (US);
Matthew R. C. Atkinson, Cottage Grove, MN (US);
Gary T. Boyd, Woodbury, MN (US);
Slah Jendoubi, Fridley, MN (US);
Mitchell A. F. Johnson, Maplewood, MN (US);
Scott R. Kaytor, Woodbury, MN (US);
Steven H. Kong, Woodbury, MN (US);
Fei Lu, Woodbury, MN (US);
Tri D. Pham, Oakdale, MN (US);
Robert B. Secor, Stillwater, MN (US);
Steven D. Solomonson, Shoreview, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
Optical films for redirecting light are described, and optical systems, such as display systems, incorporating such optical films are described. The optical film may include a first structured surface including a plurality of prismatic structures, and a second structured surface opposing the first structured surface and including a plurality of microstructures. An effective transmission of the optical film is not more than 1% less than a film with a comparable construction except for a smooth, non-structured second surface.