Focal-plane shutter, image-pickup apparatus, and image-pickup system
AssigneeCanon Kabushiki Kaisha
InventorYoshiyuki Matsumoto
Life of this patent
Estimating the term…
Abstract
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.
Claims12
A focal-plane shutter comprising:
- at least one blade group;
- a shutter base member including a first surface on which the blade group is arranged and a second surface, which is a back side of the first surface;
- a blade driving member configured to drive the blade group between a standby position and a travelling completed position;
- and
- a braking member arranged on the first surface,
- wherein the blade driving member is rotatably arranged on the second surface of the shutter base member and includes a protruding portion arranged on the first surface through the shutter base member, and
- wherein in a case where the blade group is driven from the standby position to the travelling completed position, the braking member abuts the protruding portion arranged on the first surface.
An image-pickup apparatus comprising:
- an image-pickup element configured to generate image information by photoelectrically converting an object image;
- at least one blade group;
- a shutter base member including a first surface on which the blade group is arranged and a second surface, which is a back side of the first surface;
- a blade driving member configured to drive the blade group between a standby position and a travelling completed position;
- and
- a braking member arranged on the first surface,
- wherein the blade driving member is rotatably arranged on the second surface of the shutter base member and includes a protruding portion arranged on the first surface through the shutter base member, and
- wherein in a case where the blade group is driven from the standby position to the travelling completed position, the braking member abuts the protruding portion arranged on the first surface.
Dependencies are inferred from the claim text.