Abstract: Provided are a detecting unit that detects that a light-shielding member has passed a predetermined position at the time of the light-shielding member moving to a closed state and to an opened state, and a control unit that changes at least one of a driving start timing at the time of driving a stepping motor and a driving speed at the time of driving the stepping motor, based on the detection results of the detecting unit.

Abstract: A control unit for acquiring information relating to an environment in which a shutter device is used, and changing at least one of a driving start timing at a time of driving a motor and a driving speed at the time of driving the motor.

Abstract: A shutter apparatus includes a shutter base plate having an aperture, a blade group configured to open and close the aperture, a blade driving member configured to drive the blade group, a charge lever configured to rotate the blade driving member, a first roller which is attached to a first axis portion extending from the blade driving member and abuts against the charge lever, a cam member configured to rotate the charge lever, and a second roller which is attached to a second axis portion extending from the charge lever and is configured to trace a cam portion formed on the cam member. The cam member has a flange protruding from the cam portion to periphery of the cam member. And the cam member is arranged so that the second roller is overlapped with the flange in an extending direction of the second axis portion.

Abstract: A shutter apparatus includes a shutter base plate having an aperture, a blade group configured to open and close the aperture, a blade driving member configured to drive the blade group, a charge lever configured to rotate the blade driving member, a first roller which is attached to a first axis portion extending from the blade driving member and abuts against the charge lever, a cam member configured to rotate the charge lever, and a second roller which is attached to a second axis portion extending from the charge lever and is configured to trace a cam portion formed on the cam member. The cam member has a flange protruding from the cam portion to periphery of the cam member. And the cam member is arranged so that the second roller is overlapped with the flange in an extending direction of the second axis portion.

Abstract: The focal-plane shutter apparatus includes a cam member and being rotated by a motor in one direction such that leading and trailing blade cams respectively make contact with leading and trailing blade driving members to drive them in a charging direction in which urging members are charged, and then to allow each of the leading and trailing blade driving members to move from a charge completion position to a blade drive standby position. Leading and trailing blade inclination portions of the cam member respectively allow each of the leading and trailing blade driving members to move from the charge completion position to the blade drive standby position. In a rotation direction of the cam member, a first angular area where the leading blade inclination portion is formed on the cam member is smaller than a second angular area where the trailing blade inclination portion is formed thereon.

Abstract: An imaging apparatus includes an image sensor configured to convert an optical image of a subject into an electric signal, an optical member provided on an imaging optical axis in front of the image sensor, a vibrating device configured to vibrate the optical member, a status acquiring unit configured to acquire a status inside the imaging apparatus, and a control unit configured to control the vibrating device to vibrate the optical member at each of frequency steps into which a predetermined frequency band is divided and to change at least one of the frequency band, a number of frequency steps into which the frequency band is divided, and a time per frequency step based on the status acquired by the status acquiring unit.

Abstract: The focal-plane shutter apparatus includes a cam member and being rotated by a motor in one direction such that leading and trailing blade cams respectively make contact with leading and trailing blade driving members to drive them in a charging direction in which urging members are charged, and then to allow each of the leading and trailing blade driving members to move from a charge completion position to a blade drive standby position. Leading and trailing blade inclination portions of the cam member respectively allow each of the leading and trailing blade driving members to move from the charge completion position to the blade drive standby position. In a rotation direction of the cam member, a first angular area where the leading blade inclination portion is formed on the cam member is smaller than a second angular area where the trailing blade inclination portion is formed thereon.

Abstract: A shutter device includes first and second shutter blades, a shutter base plate rotatably supporting the first and second shutter blades, a partition plate arranged between the first and second shutter blades supported by the shutter base plate, and a cover plate fixed to the shutter base plate while the first and second shutter blades are supported by the shutter base plate and the partition plate is arranged between the first and second shutter blades. The first and second shutter blades, the partition plate, and the cover plate have conductivity. The cover plate is electrically connected to the partition plate. The cover plate has a potential at a ground level.

Abstract: At least one exemplary embodiment is directed to an image pickup apparatus which includes an optical member that is vibrated in a direction substantially perpendicular to an optical axis to facilitate removal of particles (e.g., dust), where the vibration of the optical member is substantially isolated from an image pickup element.

Abstract: An imaging apparatus capable of easily removing a foreign matter adhering on an optical filter surface is disclosed. A rubber member holding an optical low pass filter seals an imaging sensor and the optical low pass filter, and a piezoelectric element vibrates an edge portion of the optical low pass filter in the direction of an optical axis, and gives the optical low pass filter a rotational force around an axis orthogonal to an imaging optical axis.

Abstract: A shutter device includes first and second shutter blades, a shutter base plate rotatably supporting the first and second shutter blades, a partition plate arranged between the first and second shutter blades supported by the shutter base plate, and a cover plate fixed to the shutter base plate while the first and second shutter blades are supported by the shutter base plate and the partition plate is arranged between the first and second shutter blades. The first and second shutter blades, the partition plate, and the cover plate have conductivity. The cover plate is electrically connected to the partition plate. The cover plate has a potential at a ground level.

Abstract: An imaging apparatus includes an image sensor configured to convert an optical image of a subject into an electric signal, an optical member provided on an imaging optical axis in front of the image sensor, a vibrating device configured to vibrate the optical member, a status acquiring unit configured to acquire a status inside the imaging apparatus, and a control unit configured to control the vibrating device to vibrate the optical member at each of frequency steps into which a predetermined frequency band is divided and to change at least one of the frequency band, a number of frequency steps into which the frequency band is divided, and a time per frequency step based on the status acquired by the status acquiring unit.

Abstract: At least one exemplary embodiment is directed to an image pickup apparatus which includes an optical member that is vibrated in a direction substantially perpendicular to an optical axis to facilitate removal of particles (e.g., dust), where the vibration of the optical member is substantially isolated from an image pickup element.

Abstract: An imaging apparatus capable of easily removing a foreign matter adhering on an optical filter surface is disclosed. A rubber member holding an optical low pass filter seals an imaging sensor and the optical low pass filter, and a piezoelectric element vibrates an edge portion of the optical low pass filter in the direction of an optical axis, and gives the optical low pass filter a rotational force around an axis orthogonal to an imaging optical axis.