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:
May. 19, 2026
Filed:
Feb. 15, 2024
Largan Precision Co., Ltd., Taichung, TW;
LARGAN PRECISION CO., LTD., Taichung City, TW;
Abstract
A plastic lens element includes an optical effective region and a peripheral region. The peripheral region is circularly disposed on a periphery of the optical effective region, and the peripheral region includes a protrusive structure, an indented shape and a drafting part. The protrusive structure is disposed on an outer diameter surface and adjacent to an annular lateral surface. The indented shape is dented from the outer diameter surface towards the optical effective region. The drafting part is raised from a base surface towards the direction away from an optical axis, and the drafting part has a top surface and a bottom surface via the section, wherein the top surface and the bottom surface are arranged along an extending direction parallel to the optical axis, and a conical surface is located between the top surface and the bottom surface.