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. 15, 2024
Filed:
Jul. 07, 2023
Azumo, Inc., Chicago, IL (US);
Anthony Nichol, Orono, MN (US);
Zane Coleman, Elmhurst, IL (US);
Azumo, Inc., Chicago, IL (US);
Abstract
In one embodiment, a film-based lightguide comprises a plurality interior light directing edges in a tapered light mixing region with curved sections which redirect light within the tapered light mixing region of the film. The interior light directing edges may be formed by cuts in the film that create an air gap between internal edges of the film. In one embodiment, the difference between radii of curvature of neighboring radii of arc sections of interior light directing edges is within 20% of an average distance between the arc sections. In one embodiment, the interior light directing edges totally internally reflect light propagating through the tapered light mixing region such that the light propagates at a smaller angle to a direction orthogonal to a width direction and orthogonal to the thickness direction of the film.