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. 07, 2025
Filed:
Dec. 20, 2019
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Robert M. Emmons, St. Paul, MN (US);
Kenneth A. Epstein, St. Paul, MN (US);
Bryan V. Hunt, Nowthen, MN (US);
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/02 (2006.01); B60K 35/00 (2024.01); B60K 35/22 (2024.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 5/0231 (2013.01); B60K 35/00 (2013.01); G02B 6/0051 (2013.01); G02B 6/0053 (2013.01); B60K 35/22 (2024.01); B60K 2360/1523 (2024.01); B60K 2360/336 (2024.01);
Abstract
An optical system comprises a turning film and a lenticular diffuser. The lenticular diffuser comprises a structured surface comprising a plurality of microstructures each comprising a lenticular prism having linear end sections connected by a blend section separated by a substantially flat land area, wherein the blend section shape is a segment of an ellipse of 2nd, 4th or 6th order polynomial.