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:
Dec. 17, 2019
Filed:
Aug. 25, 2016
3m Innovative Properties Company, St. Paul, MN (US);
Tao Liu, Woodbury, MN (US);
Brent A. Hedding, Hudson, WI (US);
David C. Mercord, Prescott, WI (US);
Brian W. Ostlie, Hudson, WI (US);
David A. Ender, New Richmond, WI (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
Lightguides including pixelated images, and methods of making the lightguides are provided. The lightguides include an image formed on a major side which is illuminated for directly viewing. The image includes an elongated portion being pixelated into an array of pixels. Each of the pixels includes a single light extracting structure adapted to receive the propagating light within the lightguide along the optical axis and extract the received light transversely out of the lightguide.