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:
Jul. 14, 2026
Filed:
Dec. 17, 2021
3m Innovative Properties Company, St. Paul, MN (US);
John A. Wheatley, Stillwater, MN (US);
Gilles J. Benoit, Minneapolis, MN (US);
Mark A. Roehrig, Stillwater, MN (US);
Bharat R. Acharya, Woodbury, MN (US);
Serena L. Schleusner, Roberts, WI (US);
Zhaohui Yang, North Oaks, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An optical film () includes a plurality of polymeric layers () disposed between opposing first () and second () outer layers, a thinnest polymeric layer in the plurality of polymeric layers disposed closer to the first outer layer () and a thickest polymeric layer disposed closer to the second outer layer (). A layer thickness gradient of the optical film () includes first () and second () portions joined by a step portion (), a change in thickness across the step portion () at least 5 times greater than a change in thickness across each of the first () and second () portions, wherein the optical film () has a first average transmission percentage, TA1, in a first wavelength range, a peak transmission percentage, Tp, in a different, second wavelength range. The first wavelength range and the second wavelength range are separated by a third wavelength range with a third average transmission percentage, TA3, such that TA1>Tp>30(TA3).