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.

Date of Patent:
Feb. 10, 2026

Filed:

Mar. 24, 2022
Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventors:

Edward J. Kivel, Stillwater, MN (US);

Adam D. Haag, Woodbury, MN (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/22 (2006.01); G02B 5/20 (2006.01); G02B 5/26 (2006.01);
U.S. Cl.
CPC ...
G02B 5/22 (2013.01); G02B 5/208 (2013.01); G02B 5/26 (2013.01);
Abstract

An optical stack includes a light control film and an optical film disposed on the light control film. The light control film includes a plurality of visible light transmitting regions separated from each other by one or more visible light absorbing regions. The optical film includes a plurality of microlayers having an F-ratio between about 0.25 to about 0.35 or about 0.65 to about 0.75. The optical film further includes a primary reflection band having a first band edge between about 600 nanometers (nm) and about 700 nm, and a secondary reflection band having a second band edge between about 350 nm and about 460 nm. The plurality of microlayers has an average optical reflectance of greater than about 80% across a FWHM of the primary reflection band for each of mutually orthogonal first and second polarization states.


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