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:
Jul. 07, 2026
Filed:
Oct. 27, 2023
Applicant:
Largan Precision Co., Ltd., Taichung City, TW;
Inventors:
Wen-Yu Tsai, Taichung City, TW;
Hsiang-Chi Tang, Taichung City, TW;
Yu Jie Hong, Taichung City, TW;
Chun-Hung Teng, Taichung City, TW;
Assignee:
LARGAN PRECISION CO., LTD., Taichung City, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/04 (2006.01); G02B 1/115 (2015.01); G02B 3/04 (2006.01); G02B 5/20 (2006.01); G02B 13/00 (2006.01);
U.S. Cl.
CPC ...
G02B 1/041 (2013.01); G02B 1/115 (2013.01); G02B 3/04 (2013.01); G02B 5/208 (2013.01); G02B 13/008 (2013.01);
Abstract
An optical lens assembly includes at least one optical element. At least one of the at least one optical element includes a multi-layer coating membrane, and the multi-layer coating membrane is formed by alternately stacking high refractive index layers and low refractive index layers. The multi-layer coating membrane is a dual-bandpass filtering membrane.