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:
Feb. 11, 2025
Filed:
Apr. 05, 2022
Applicant:
Tdk Taiwan Corp., Taoyuan, TW;
Inventor:
Chi-Wei Chiu, Taoyuan, TW;
Assignee:
TDK TAIWAN CORP., Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/09 (2021.01); G02B 7/02 (2021.01);
U.S. Cl.
CPC ...
G02B 7/09 (2013.01); G02B 7/026 (2013.01);
Abstract
A lens autofocus actuating device includes a base, a guide rail unit, a lens carrier, an actuating member, a plurality of balls, and a shell. The base includes an upper surface. The guide rail unit is disposed on the upper surface of the base. The lens carrier is disposed above the base. The lens carrier is located between a plurality of position-limiting members. The actuating member is disposed on the upper surface of the base. The actuating member comprises two electrode terminal pairs and two shape-memory alloy wires. The balls are divided into groups. The shell is connected to the base.