A focal-plane shutter that has a shutter base plate that has an opening; a shutter blade that opens/closes the opening; a blade arm that pivotally supports the shutter blade; and a blade drive member that has a drive pin that is connected to the blade arm. The blade drive member rotates the blade arm so as to drive the shutter blade. The blade arm has a connection hole into which the drive pin is inserted; and a restriction member that is between an inner circumferential surface of the connection hole and an outer circumferential surface of the drive pin and that restricts the movement of the drive pin inside the connection hole.

A focal-plane shutter that has a shutter base plate that has an opening; a shutter blade that opens/closes the opening; a blade arm that pivotally supports the shutter blade; and a blade drive member that has a drive pin that is connected to the blade arm. The blade drive member rotates the blade arm so as to drive the shutter blade. The blade arm has a connection hole into which the drive pin is inserted; and a restriction member that is between an inner circumferential surface of the connection hole and an outer circumferential surface of the drive pin and that restricts the movement of the drive pin inside the connection hole.

To decrease the influence of a magnetic flux generated in one magnetic drive unit on the other magnetic drive unit while securing downsizing. Provided are a first magnetic drive unit including a first coil to which a drive current is supplied and a first magnet rotated with electric conduction to the first coil, a second magnetic drive unit including a second coil to which a drive current is supplied and a second magnet rotated with electric conduction to the second coil, a first drive lever operated by the first magnetic drive unit, a second drive lever operated by the second magnetic drive unit, a first opening and closing blade that opens and closes an opening by an operation of the first drive lever, a second opening and closing blade that opens and closes the opening by an operation of the second drive lever, a first lock mechanism that locks the first drive lever at a predetermined position, and a second lock mechanism that locks the second drive lever at a predetermined position, in which at least a part of the first lock mechanism and at least a part of the second lock mechanism are located between the first magnetic drive unit and the second magnetic drive unit.

A shutter device includes a movable shading module and a movement control module configured to control movement of the movable shading module. The movable shading module includes a shading unit, a driving unit and a signal measuring unit. The shading unit includes two blades, and the movement control module is configured to generate a control signal. The driving unit is configured to receive the control signal and drive the two blades. The signal measuring unit is configured to measure an operating status of the blades feed it back to the movement control module in real time. The movement control module is configured to update the control signal based on the fed back operating status. This shutter device can overcome the problems of low exposure dose accuracy and light leaks arising from the use of existing shutters and provide various accurately-controlled exposure doses suitable for different applications.

A shutter device includes a movable shading module and a movement control module configured to control movement of the movable shading module. The movable shading module includes a shading unit, a driving unit and a signal measuring unit. The shading unit includes two blades, and the movement control module is configured to generate a control signal. The driving unit is configured to receive the control signal and drive the two blades. The signal measuring unit is configured to measure an operating status of the blades feed it back to the movement control module in real time. The movement control module is configured to update the control signal based on the fed back operating status. This shutter device can overcome the problems of low exposure dose accuracy and light leaks arising from the use of existing shutters and provide various accurately-controlled exposure doses suitable for different applications.

A focal-plane shutter that has a shutter base plate that has an opening; a shutter blade that opens/closes the opening; a blade arm that pivotally supports the shutter blade; and a blade drive member that has a drive pin that is connected to the blade arm. The blade drive member rotates the blade arm so as to drive the shutter blade. The blade arm has a connection hole into which the drive pin is inserted; and a restriction member that is between an inner circumferential surface of the connection hole and an outer circumferential surface of the drive pin and that restricts the movement of the drive pin inside the connection hole.

A focal-plane shutter that has a shutter base plate that has an opening; a shutter blade that opens/closes the opening; a blade arm that pivotally supports the shutter blade; and a blade drive member that has a drive pin that is connected to the blade arm. The blade drive member rotates the blade arm so as to drive the shutter blade. The blade arm has a connection hole into which the drive pin is inserted; and a restriction member that is between an inner circumferential surface of the connection hole and an outer circumferential surface of the drive pin and that restricts the movement of the drive pin inside the connection hole.

A shutter system includes an electronic device having a camera with a lens. A shutter is supported by the electronic device to block light transmission through the lens in a first state and permit light transmission in a second state. The shutter includes a shutter body containing electrically charged light blocking particles in suspension, a first pair of electrodes positioned to move the electrically charged light blocking particles to achieve the first state in response to a first voltage being applied to the first pair of electrodes, and a second pair of electrodes positioned to move the electrically charged light blocking particles to achieve the second state in response to a second voltage being applied to the second pair of electrodes.

A shutter system includes an electronic device having a camera with a lens. A shutter is supported by the electronic device to block light transmission through the lens in a first state and permit light transmission in a second state. The shutter includes a shutter body containing electrically charged light blocking particles in suspension, a first pair of electrodes positioned to move the electrically charged light blocking particles to achieve the first state in response to a first voltage being applied to the first pair of electrodes, and a second pair of electrodes positioned to move the electrically charged light blocking particles to achieve the second state in response to a second voltage being applied to the second pair of electrodes.

An infrared imaging system is provided with a shutter assembly having an integrated thermistor. In one example, a device includes a shutter assembly. The shutter assembly includes a paddle configured to move between an open position and a closed position. The paddle is configured to block external infrared radiation from reaching a focal plane array (FPA) in a closed position, and pass the external infrared radiation to the FPA in an open position. The shutter assembly also includes an embedded thermistor configured to sense a temperature of the paddle when the paddle is in the open position. In another example, an infrared sensor assembly includes a first set of mechanically engageable electrical contacts for engaging with a second set of mechanically engageable electrical contacts of a shutter assembly electrically coupled with a thermistor through a conductive path. Additional devices and related methods are also provided.