The present invention relates to a lighting control device, the device comprising means for receiving a trigger; and means for switching operation of a lighting device from a continuous mode to a flash mode upon receipt of said trigger; wherein said lighting device comprises at least one light emitting diode; and said flash mode is at a higher brightness than said continuous mode. The invention also relates to a lighting system comprising: a lighting device comprising at least one light emitting diode; and a lighting control device; wherein the lighting control device is operable to switch operation of said lighting device between a continuous mode and a flash mode; wherein the flash is at a higher brightness than said continuous mode.

The present technology relates to a power controller, a power control method, and a program which appropriately supply power to an actuator for driving a shutter and an actuator for camera shake correction. A power controller includes a shutter controller for controlling a shutter driving unit, a camera shake correction controller for controlling a camera shake correction driving unit, and a power amount setting unit for setting amounts of power to be allocated to the shutter driving unit and the camera shake correction driving unit according to a set shutter speed. The power amount setting unit allocates the amount of power to be supplied to the camera shake correction driving unit when the shutter speed is equal to or less than a predetermined speed to the shutter driving unit in a case where the shutter speed is faster than a predetermined speed. The present technology available for an image pickup device.

A shutter unit includes a base plate on which an opening is formed, at least one blade member, a driving member configured to be rotatably supported by the base plate and to drive, in imaging, the blade member from a standby position to a traveling completion position by using a biasing force of a biasing member, a braking member configured to cause the driving member to decelerate by coming into contact with the driving member, and a charging member configured to cause the driving member to operate to the standby position after causing the driving member to operate from the traveling completion position to a set position against the biasing force of the biasing member, and cause the braking member to operate from the traveling completion position to the standby position while causing the driving member to operate from the set position to the standby position.

A shutter device includes a base plate including an opening, a blade unit configured to switch a state of the opening, a driving member configured to drive the blade unit, a motor, a decelerator configured to decelerate power from the motor, a first connector engaged with the decelerator, a second connector having one end attached to the driving member and another attached to the first connector, a first position detector configured to detect passage through a predetermined position in a moving locus of the driving member or the first connector, and a second position detector configured to detect a relative difference from the first position detector. The blade unit switches the state of the opening from the closed state to the opened state by continuous rotation of the first connector. Driving of the motor is controlled based on results of the detection by the first and second position detectors.

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.

A motor control apparatus includes a detection unit configured to detect an actual rotation position of a motor, a control unit configured to provide position feedback control on the motor so that the detected actual rotation position sequentially approaches a plurality of target rotation positions, and a processing unit configured to perform, before the position feedback control starts, processing to make an initial position deviation fall within a predetermined range, the initial position deviation being a difference between the actual rotation position and a first target rotation position of the plurality of target rotation positions.

A shutter device includes a base plate including an opening, a blade unit configured to switch a state of the opening, a driving member configured to drive the blade unit, a motor, a decelerator configured to decelerate power from the motor, a first connector engaged with the decelerator, a second connector having one end attached to the driving member and another attached to the first connector, a first position detector configured to detect passage through a predetermined position in a moving locus of the driving member or the first connector, and a second position detector configured to detect a relative difference from the first position detector. The blade unit switches the state of the opening from the closed state to the opened state by continuous rotation of the first connector. Driving of the motor is controlled based on results of the detection by the first and second position detectors.

A shutter apparatus includes a front blade unit and a rear blade unit configured to open and close an opening for exposure control, a front drive member and a rear drive member configured to drive the front blade unit and the rear blade unit between an open position and a closed position of the opening, respectively, a front cam gear and a rear cam gear configured to charge the front drive member and the rear drive member, respectively, a front driving source and a rear driving source connected to and configured to rotate the front cam gear and the rear cam gear, respectively, and a controller configured to control the front driving source and the rear driving source based on an imaging condition so as to change driving times of the front blade unit and the rear blade unit.

A shutter apparatus includes a front blade unit and a rear blade unit configured to open and close an opening for exposure control, a front drive member and a rear drive member configured to drive the front blade unit and the rear blade unit between an open position and a closed position of the opening, respectively, a front cam gear and a rear cam gear configured to charge the front drive member and the rear drive member, respectively, a front driving source and a rear driving source connected to and configured to rotate the front cam gear and the rear cam gear, respectively, and a controller configured to control the front driving source and the rear driving source based on an imaging condition so as to change driving times of the front blade unit and the rear blade unit.

To enable correction or adjustment of a curtain travel curve in a case of driving an opening and closing blade by a power source in which a motor mechanism and a spring mechanism are combined. Provided are the motor mechanism that generates a traveling torque of the opening and closing blade of a mechanical shutter provided in an incident light path to an imaging element by electric conduction to a coil, and the spring mechanism that generates the traveling torque of the opening and closing blade together with the motor mechanism. In this case, a control unit capable of individually controlling a time length from the start of the electric conduction to the coil to the start of traveling of the opening and closing blade, and a value of a current to be supplied to the coil is provided.