US 11,815,786 B2
Blade open-close device and electronic device
Koji Sawanobori, Tokyo (JP); and Nobuaki Watanabe, Tokyo (JP)
Assigned to NIDEC COPAL CORPORATION, Tokyo (JP)
Filed by Nidec Copal Corporation, Tokyo (JP)
Filed on Sep. 17, 2021, as Appl. No. 17/477,531.
Claims priority of application No. 2020-158799 (JP), filed on Sep. 23, 2020.
Prior Publication US 2022/0091478 A1, Mar. 24, 2022
Int. Cl. G03B 11/04 (2021.01); G06F 1/16 (2006.01)
CPC G03B 11/043 (2013.01) [G06F 1/1686 (2013.01); G06F 1/1616 (2013.01); G06F 1/1679 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A blade open-close device, comprising:
a base having a housing space housing a lens unit;
a cover plate covering at least part of the base and having an opening aligned with an optical axis of the lens unit;
a blade located between the base and the cover plate;
a driving actuator configured to move the blade in an opening and closing direction perpendicular to the optical axis between a closing position to cover the opening and an opening position to uncover the opening; and
a stopper actuator located adjacent to the driving actuator in the opening and closing direction to restrict an operation of the driving actuator,
wherein the driving actuator includes
a first yoke,
a first coil wound around part of the first yoke,
a first rotor magnet rotatably located adjacent to the first yoke, and
a first lever including a connecting part connected to the blade, the first lever being rotatable with the first rotor magnet to move the blade, and
the stopper actuator includes
a second yoke,
a second coil wound around part of the second yoke,
a second rotor magnet rotatably located adjacent to the second yoke, and
a second lever rotatable with the second rotor magnet and including a restrictor movable onto a path on which the first lever in the driving actuator is movable, wherein the second lever is configured to bring the restrictor into contact with the connecting part in both the closing position and the opening position.