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. 28, 2025
Filed:
Jan. 13, 2023
Largan Precision Co., Ltd., Taichung, TW;
Chun-Hua Tsai, Taichung, TW;
Lin-An Chang, Taichung, TW;
LARGAN PRECISION CO., LTD., Taichung, TW;
Abstract
A lens element includes an optical effective portion, a peripheral portion and protruding structures. The optical effective portion includes a first optical surface and a second optical surface, wherein the second optical surface and the first optical surface are disposed relative to each other. The peripheral portion includes a first peripheral surface, a second peripheral surface and an outer annular surface. The first peripheral surface and the first optical surface face towards the same side. The second peripheral surface and the second optical surface face towards the same side. The outer annular surface is connected to the first peripheral surface and the second peripheral surface. The protruding structures are disposed on the first peripheral surface, the protruding structures extend along a spiral path and are disposed at intervals, and the spiral path surrounds the optical effective portion.