Canon Kabushiki Kaisha

Yoshiyuki Matsumoto

Keisuke Adachi

Futoshi Hirai

Yuji Ueda

Jun Kawanami

A shutter unit includes a base plate having an opening, a first blade member movable between a closed state and a retracted state, a first driving member biased by a first biasing member, a second driving member biased by a second biasing member, a first charging member configured to cause the first driving member to move in the second direction against a biasing force, a second charging member configured to cause the second driving member to move in the first direction against a biasing force, and a motor configured to supply a driving force to the first and second charging members. In a case where the first charging member causes the first driving member to move, the motor rotates in a direction opposite to a rotation direction in a case where the second charging member causes the second driving member to move.

Shutter unit and image pickup apparatus

A shutter unit includes a base plate, a first blade operation member movable integrally with the first blade member between a first movement completion position and a first movement start position, a second blade operation member movable integrally with the second blade member between a second movement completion position and a second movement start position, a first charge member configured to charge the first blade operation member from the first movement completion position to the first movement start position, and a second charge member configured to charge the second blade operation member from the second movement completion position to the second movement start position, wherein the first charge member and the second charge member include coaxially arranged cam gears and are configured to rotate in opposite directions.

Shutter unit and imaging apparatus

A focal-plane shutter includes at least one blade group, a shutter base plate where the blade group is rotatably attached, a blade driving member rotatably supported by the shutter base plate and configured to drive the blade group from a standby position to a travelling completed position when taking pictures, a charge member configured to charge the blade driving member and a braking member formed on a first surface opposite to a second surface where the blade driving member of the shutter base plate is rotatably supported and configured to abut against a protruding portion which penetrates the shutter base plate from the blade driving member so as to protrude to the first surface.

Focal-plane shutter, image-pickup apparatus, and image-pickup system

An electronic apparatus includes: a display panel, a retention member retaining the display panel, and an external case covering the retention member. The retention member has a retention main body portion retaining the display panel and a plurality of fastening portions for fixing to the external case. At least one of the plurality of fastening portions has a displacement absorbing portion absorbing displacement of the retention member.

Electronic apparatus

A blade lever is provided with a roller bearing portion, which extends towards a shaft around which a roller is rotatably supported to prevent falling off of the roller. The roller bearing portion is provided within a range of movement of the shaft when the blade lever is driven in a direction of opening an aperture by a first blade and a second blade with an urging force of a blade return spring.

Growing community of inventors

Yokohama, Japan

Yoshiyuki Matsumoto