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:
Mar. 16, 2021
Filed:
Jul. 13, 2017
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Timothy J. Nevitt, Red Wing, MN (US);
Edward J. Kivel, Stillwater, MN (US);
William B. Black, Eagan, MN (US);
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02B 1/04 (2006.01); G02B 5/26 (2006.01); G02F 1/1335 (2006.01); G02F 1/1337 (2006.01); G02B 5/28 (2006.01);
U.S. Cl.
CPC ...
G02B 5/305 (2013.01); G02B 1/04 (2013.01); G02B 5/26 (2013.01); G02F 1/133536 (2013.01); G02F 1/133711 (2013.01); G02B 5/287 (2013.01);
Abstract
An optical film including alternating polymeric layers and having distinct first, second and third reflection bands is described. The first, second and third reflection bands are each visible reflection bands at normal incidence for at least one polarization state. At least two of the first, second and third reflection bands are third order or higher order harmonics.