Canon Denshi Kabushiki Kaisha

Naoki Kawakubo

Yuki Saito

Hisatoshi Ito

Yaomin Zhou

Akira Kurosawa

Kentaro Kato

Mitsuo Shibata

Satoshi Kozu

Takahiro Arai

A lens driving actuator includes an upper cover having an opening for passing light, a lens barrel arranged in the upper cover and including a light-transmitting lens, a driving pin formed on an outer circumferential surface of the lens barrel, a driving cam member formed to cover the outer circumference of the lens barrel, and having a cam groove that engages with the driving pin, and a driving source configured to supply a driving force to a gear formed in the driving cam member. When the driving cam member rotates along the outer circumferential surface of the lens barrel, the driving pin is guided by the cam groove, and the lens barrel moves in an optical-axis direction with respect to the upper cover.

Lens driving actuator and portable terminal

A blade driving device including, a base plate including an opening through which light passes, a blade configured to runs on a surface of the base plate to open and close the opening, a drive mechanism including a drive spring and actuates the blade; and a charge mechanism configured to perform a charge operation on the drive mechanism against the drive spring. The charge mechanism includes a slide member configured to linearly reciprocate in a direction parallel to the base plate along a motor between the motor and the drive mechanism, the motor generating a driving force for the charge mechanism.

Blade driving device and imaging apparatus

The light-quantity control apparatus includes a stop blade including a stop portion and a supported portion rotatably supported with respect to a base member, a shutter blade having a shutter portion and a supported portion rotatably supported with respect to the base member, and a driving member disposed between the shutter and stop blades and rotating around the light-passing aperture to rotate the stop blade. The stop and shutter blades have tilts in their supported portions toward a same one side in the optical axis direction so that the stop and shutter portions are distant from the supported portions in the optical axis direction. The driving member has a shape concave toward the one side from its outer circumferential side portion to its inner circumferential side portion. A concave space facing the light-passing aperture is formed inside than the stop and shutter blades and the driving member.

Light-quantity control apparatus and optical apparatus

Growing community of inventors

Yokohama, Japan

Naoki Kawakubo