Title:
APERTURE DIAPHRAGM DRIVING DEVICE, CAMERA DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
Japanese Patent JP2021056448
Kind Code:
A
Abstract:
To provide an aperture diaphragm driving device, a camera device, and an electronic apparatus which can be miniaturized and thinned.SOLUTION: An aperture diaphragm driving device 10 includes: at least two or more diaphragm blades 18, 20 which are parallel to a virtual circle when the virtual circle is provided around a reference axis using an optical axis of a lens as the reference axis; a base 12 for supporting the diaphragm blades 18, 20 in a freely movable manner in the radial direction of the virtual circle; and drive units 32, 34 which include a shape memory alloy part 40 extending in the tangential direction of the virtual circle and drive the diaphragm blades 18, 20 by the deformation of the shape memory alloy part 40.SELECTED DRAWING: Figure 1
Inventors:
TERAJIMA KOKICHI
Application Number:
JP2019181382A
Publication Date:
April 08, 2021
Filing Date:
October 01, 2019
Export Citation:
Assignee:
NEW SHICOH MOTOR CO LTD
International Classes:
G03B9/02
Domestic Patent References:
| JP2001147459A | 2001-05-29 |
Foreign References:
| CN209265149U | 2019-08-16 |
Attorney, Agent or Firm:
Patent Service Corporation Taiyo International Patent Office