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:
Oct. 14, 2025
Filed:
Feb. 15, 2022
3m Innovative Properties Company, St. Paul, MN (US);
Zhisheng Yun, Sammamish, WA (US);
Andrew J. Ouderkirk, Kirkland, WA (US);
Susan L. Kent, Shorewood, MN (US);
Erin A. Mcdowell, Afton, MN (US);
Timothy L. Wong, West St. Paul, MN (US);
John D. Le, Woodbury, MN (US);
Michael L. Steiner, New Richmond, WI (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
A bi-focal prescription eyewear lens includes a substrate and a reflective polarizer, or a partial reflector, bonded to the substrate. A reflective polarizer substantially transmits light having a first polarization state and substantially reflects light having an orthogonal second polarization state. The bi-focal optical lens has a first focal length for light having the first polarization state and a second focal length for light having the second polarization state. The first focal length is longer than the second focal length. Without the reflective polarizer or partial reflector, the bi-focal optical lens would have a single focal length. Eyeglasses can include the bi-focal prescription eyewear lens.