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:
Feb. 17, 2026
Filed:
Jun. 06, 2019
3m Innovative Properties Company, St. Paul, MN (US);
Zhisheng Yun, Sammamish, WA (US);
Stephen J. Willett, St. Paul, MN (US);
Craig R. Schardt, Woodbury, MN (US);
Gilles J. Benoit, Minneapolis, MN (US);
Keith M. Kotchick, St. Paul, MN (US);
Ryan C. Shirk, Mendota Heights, MN (US);
David A. Rosen, North St. Paul, MN (US);
Hao Wu, Shanghai, CN;
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
An optical system includes a reflective polarizer (), and a display (), first mirror (), and second mirror () disposed on a same side of the reflective polarizer (). The reflective polarizer () transmits an image emitted by the display () after the image is reflected by the first and second mirrors (). A mid-plane defined by intersection points between an optical axis of the system and the display (), reflective polarizer (), and second mirror () has one-pass through four-pass regions having respective areas, A1 through A4. The one-pass region includes portions of the emitted image rays () that pass at least one time across the one-pass region, the two-pass region includes portions of the image rays () that pass at least two times across the two-pass region, the three-pass region includes portions of the image rays () that pass at least three times across the three-pass region, and the four-pass region includes portions of the image rays () that pass four times across the four-pass region, such that the ratio A4/A3 is between approximately 0.15 and approximately 0.40.