Canon Kabushiki Kaisha

Masato Shiono

Kohei Uemura

Toru Ishimasa

Keita Iwai

Kanae Nakamori

An optical apparatus capable of adjusting a position of a lens with a simple configuration that enables miniaturization without deteriorating optical performance. Lens groups are arranged on an optical axis to be movable along the optical axis. A first shaft is arranged in parallel to the optical axis and has a fitting part fit in a predetermined lens group and a first fixing part. A support member rotatably supports the first shaft by holding the first fixing part. A center axis of the first fixing part and a center axis of the fitting part are eccentric. The first shaft is supported by the support member to be rotatable around the center axis of the first fixing part. The predetermined lens group is movable between an image pickup position on the optical axis and a retreat position that is separated from the optical axis by rotating around the first shaft.

Optical apparatus, image stabilization device, lens barrel, and image pickup apparatus

A lens barrel according to the present disclosure includes a booster transformer that is arranged on an inner circumference side of a cam barrel and constitutes a power supply for an actuator. The booster transformer is arranged on a side surface of a barrel. The booster transformer is configured to move in an optical axis direction together with the barrel in accordance with rotation of the cam barrel.

Lens barrel and image pickup apparatus

A motor includes a vibrator, a plurality of pressing members that presses the vibrator onto a contacting member in contact with the vibrator, a transmission member that transmits pressing force, which is applied by the plurality of pressing members, to the vibrator, a first holding member that holds the vibrator, a second holding member that holds the transmission member, and a coupling member that couples the first holding member to the second holding member. The vibrator and the contacting member move relatively by vibrations that occur in the vibrator. The vibrator includes a protruding part that is provided on a surface opposite to a surface on a transmission member side. The pressing members are arranged separately to surround the protruding part. The coupling member is arranged at a position closer to the protruding part than the pressing members.

Motor and electronic apparatus including motor

A driving apparatus comprises a plurality of vibrators vibrating by application of a high-frequency voltage thereto; a friction member in frictional contact with the vibrators; and a pressing portion for bringing the vibrators into pressed contact with the friction member. The plurality of vibrators are arranged to be juxtaposed and a single drive force is extracted by moving the plurality of vibrators relative to the friction member, and a position where the drive force is extracted is a central position of the plurality of vibrators in a direction in which the plurality of vibrators are juxtaposed and is close to a frictional contact position in a pressing direction of the pressing portion.

Driving apparatus and optical device

An optical apparatus which is capable of, when performing manual focus shooting, freely adjusting a rack focus speed and stabilizing a final focusing accuracy for a shooting subject. Operation of the focus lens, which is driven in a direction of an optical axis by a motor, is controlled in accordance with rotation of a manual focus ring. A position of the focus lens in the direction of the optical axis, which is detected when the focus lens lies at a predetermined position, is stored in a storage unit. According to the relationship between a signal indicative of a current position of a focus lens and a signal indicative of a position of the focus lens, which is stored in the storage unit, the amount by which the focus lens is driven relative to rotation of a manual focus ring is changed.

Growing community of inventors

Hadano, Japan

Masato Shiono