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. 30, 2024
Filed:
May. 04, 2021
3m Innovative Properties Company, St. Paul, MN (US);
Bharat R. Acharya, Woodbury, MN (US);
Robert D. Taylor, Stacy, MN (US);
Joseph P. Attard, Woodbury, MN (US);
Benjamin J. Forsythe, Stillwater, MN (US);
David T. Yust, Woodbury, MN (US);
Matthew E. Sousa, Rosemount, MN (US);
Jason S. Petaja, Hudson, WI (US);
Anthony M. Renstrom, Forest Lake, MN (US);
William Blake Kolb, Stillwater, MN (US);
Matthew S. Cole, Woodbury, MN (US);
Matthew S. Stay, Bloomington, MN (US);
Matthew R.D. Smith, Woodbury, MN (US);
Jeremy O. Swanson, Woodbury, MN (US);
Tri D. Pham, Woodbury, MN (US);
David A. Rosen, North St. Paul, MN (US);
Qunyi Chen, St. Paul, MN (US);
Lisa A. DeNicola, St. Paul, MN (US);
Quinn D. Sanford, Mosinee, WI (US);
Carl A. Stover, St. Paul, MN (US);
Lin Zhao, Woodbury, MN (US);
Gilles J. Benoit, Minneapolis, MN (US);
3M INNOVATION PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
An optical construction includes a reflective polarizer and an optically diffusive film disposed on the reflective polarizer. The reflective polarizer includes an outer layer including a plurality of first particles partially protruding from a first major surface thereof to form a structured major surface. A first optically diffusive layer is conformably disposed on the structured major surface. The optically diffusive film includes a second optically diffusive layer including a plurality of nanoparticles dispersed therein, and a structured layer including a structured major surface. For a substantially normally incident light and a visible wavelength range from about 450 nm to about 650 nm and an infrared wavelength range from about 930 nm to about 970 nm, the second optically diffusive layer has an average specular transmittance Vs in the visible wavelength range and an average specular transmittance Is in the infrared wavelength range, where Is/Vs≥2.5.