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:
Nov. 04, 2025
Filed:
Oct. 26, 2022
3m Innovative Properties Company, St. Paul, MN (US);
Timothy L. Wong, West St. Paul, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
An optical lens assembly includes an optical axis and two optical lenses having at least one curved major surface, a partial reflector disposed on a first major surface of the lens assembly, and a reflective polarizer disposed on a second major surface. For each of first and second visible wavelengths, and for unpolarized collimated light incident on the assembly from the viewer-side, the assembly focuses the incident light on the display-side, forming a first focused incident light at an average spacing T1 from the optical axis after the light passes through the assembly a first time, and a second focused incident light at an average spacing T2 from the optical axis after the light passes through the assembly three times, such that due to the difference between the first and second wavelengths, the first and second focused incident lights have respective lateral chromatic aberrations D1 and D2, D2/T2<D1/T1.