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:
Apr. 19, 2022
Filed:
Sep. 09, 2020
Lextar Electronics Corporation, Hsinchu, TW;
Hsu-Wen Cheng, Hsinchu, TW;
Lextar Electronics Corporation, Hsinchu, TW;
Abstract
An optical element includes a bottom surface, a total reflection surface above the bottom surface, a recess recessed from the bottom surface toward the total reflection surface and first and second light exit surfaces. The optical element has a central axis perpendicular to the bottom surface. The total reflection surface has a peripheral boundary away from the central axis. The first light exit surface is connected to the peripheral boundary of the total reflection surface and extends toward the bottom surface away from the central axis. The second light exit surface is connected to the first light exit surface, extends away from the central axis, and is connected to the bottom surface. Each of the first and second light exit surfaces is consisted of at least one linear sub-refractive surface. Each linear sub-refractive surface is a straight line in any cross section passing through the central axis.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile