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. 25, 2022
Filed:
Mar. 30, 2020
Sintai Optical (Shenzhen) Co., Ltd., ShenZhen, CN;
Asia Optical Co., Inc., Taichung, TW;
Guo-Quan Lin, ShenZhen, CN;
Hsi-Ling Chang, Taichung, TW;
Bo-Yan Chen, Taichung, TW;
Ming-Huang Tseng, Taichung, TW;
Guo-Yang Wu, Taichung, TW;
SINTAI OPTICAL (SHENZHEN) CO., LTD., Shenzhen, CN;
ASIA OPTICAL CO., INC., Taichung, TW;
Abstract
A lens assembly includes a lens body, a first lens, a second lens, a third lens and a fourth lens, wherein the lens body includes a lens barrel, and the first lens, the second lens, the third lens and the fourth lens are fixed in the lens body in order from an object side to an image side along an optical axis. The first lens is closest to the object side and includes an object side surface, the object side surface is protruded along the optical axis, the first lens further includes a first portion close to the object side and a second portion close to the image side, and a diameter of the first portion is smaller than a diameter of the second portion so that a step is formed between the first portion and the second portion.