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:
Aug. 22, 2023
Filed:
Oct. 10, 2018
Ningbo Sunny Opotech Co., Ltd., Yuyao, CN;
NINGBO SUNNY OPOTECH CO., LTD., Yuyao, CN;
Abstract
An optical actuator, including: a base; a lens module comprising two first side surfaces opposite each other; and a plurality of shape memory alloy wires forming two wire groups, the two wire groups being disposed on the two first side surfaces, respectively, wherein two ends of each shape memory alloy wire are fixed to a base-end fixing device and a lens-end fixing device, respectively; and the direction of the resultant force acting on the lens module by the two wire groups is consistent with the direction of the optical axis of the lens module, so that the lens module is driven to move along the direction of the optical axis of the lens module by means of expansion and contraction of the shape memory alloy wires of the two wire groups.