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. 01, 2022
Filed:
Dec. 18, 2019
Aac Optics Solutions Pte. Ltd., Singapore, SG;
Shikama Kazuo, Osaka, JP;
AAC Optics Solutions Pte. Ltd., Singapore, SG;
Abstract
An object of the present disclosure lies in that in an optical device including a blade mounted on a lens or in space in a lens, it is possible to achieve miniaturization and light weight of the entire equipped device, simplification of driving and simplification of assembling, by using a shape memory alloy in a driving portion. A blade driving device includes: a base member supporting a blade; a blade; a plate member having a caliber and constituting a blade chamber; a plate member having a caliber, constituting the blade chamber and covering the blade; a ring member rotatably shaft-supported and including a connecting portion connected to the blade; an elastic member held by the base member and the ring member; a shape memory alloy held by the base member and the ring member; a holding member for holding the shape memory alloy; and a wiring for power supply.