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. 03, 2022
Filed:
Mar. 26, 2020
Tdk Taiwan Corp., Taoyuan, TW;
Chi-Wei Chiu, Taoyuan, TW;
TDK TAIWAN CORP., Taoyuan, TW;
Abstract
A lens autofocus actuating device includes a fixing ring, which is disposed on an upper surface of a base; a plurality of position limiting members, which is stood on the fixing ring; a lens carrier, which is disposed above the base and located between the position limiting members, wherein an outer side surface has a plurality of protrusions and cavities and a disposing space is consisted of one of the cavities and the corresponding position limiting member; an actuating member, which is disposed on the upper surface of the base and has two electrode terminal pairs and two shape-memory alloy wire; a plurality of balls, which is positioned in the corresponding disposing space and contact to the surfaces of the position limiting member and the cavity.