A shutter device includes: a substrate having an opening; a first light-shielding member that moves from a first position outside the opening of the substrate to a second position outside the opening to shield the opening, the second position being different from the first position; a second light-shielding member that partly shields the opening while moving from the first position to the second position; a first moving member that has a protrusion moving along a hole provided in the substrate to move the first light-shielding member; a second moving member that is coupled to the second light-shielding member and moves together with the second light-shielding member; and a third moving member, located outside a movement range of the protrusion during the second light-shielding member being located in the first position, that is coupled to the second light-shielding member and moves together with the second light-shielding member.

A shutter device includes: a substrate having an opening; a first light-shielding member having a light-shielding region having lengths in first and second directions respectively larger and smaller than those of the opening in the same directions, and partly shields the opening while moving from a first position outside the opening of the substrate to a second position outside the opening, the second position being different from the first position; and a second light-shielding member having a light-shielding region having a length in the first direction smaller than the length of the opening in the first direction and a length in the second direction smaller than the length of the opening in the second direction, and shields the opening between an end in the first direction of the first light-shielding member and the substrate while moving in the second direction.

An effect that drive of one of a first magnetic driving unit and a second magnetic driving unit prevents a movement of the other magnetic driving unit is not generated to appropriately control movements of first opening and closing blades and second opening and closing blades. A blade opening and closing device includes a base body which includes an opening for transmitting light, a first magnetic driving unit which includes a first magnet and a first coil, a second magnetic driving unit which includes a second magnet and a second coil, first opening and closing blades which are moved by the first magnetic driving unit relative to the base body and to open and close the opening, and second opening and closing blades which are moved by the second magnetic driving unit relative to the base body and to open and close the opening. A magnetic flux direction of the first magnetic driving unit is opposite to a magnetic flux direction of the second magnetic driving unit.

A light shielding blade including a laminate in which a resin layer is sandwiched between two metal base materials, wherein the two metal base materials each have a specific rigidity of 20×10.sup.6 [Pa.Math.m.sup.3/kg] or more and a specific bending rigidity of 1.0 [Pa.sup.1/3.Math.m.sup.3/kg] or more, and wherein the resin layer has an elastic modulus of 1 GPa or more and a thickness of 65 μm or less.

A light shielding blade including a laminate in which a resin layer is sandwiched between two metal base materials, wherein the two metal base materials each have a specific rigidity of 20×10.sup.6 [Pa.Math.m.sup.3/kg] or more and a specific bending rigidity of 1.0 [Pa.sup.1/3.Math.m.sup.3/kg] or more, and wherein the resin layer has an elastic modulus of 1 GPa or more and a thickness of 65 μm or less.

A control unit driving a motor in a first direction based on output of a first signal, whereby a cam member charges a biasing member, and thereafter the control unit controls driving of the motor so as to stop the cam member in the state where the biasing member is charged, and the control unit drives the motor in a second direction that is the opposite direction to the first direction, whereby the cam member is driven by biasing force of the biasing member and driving force of the motor, an engaging portion follows through a first zone, and thereafter the cam member is driven by the driving force of the motor without using the biasing force of the biasing member, and the engaging portion follows through the second zone.

A control unit driving a motor in a first direction based on output of a first signal, whereby a cam member charges a biasing member, and thereafter the control unit controls driving of the motor so as to stop the cam member in the state where the biasing member is charged, and the control unit drives the motor in a second direction that is the opposite direction to the first direction, whereby the cam member is driven by biasing force of the biasing member and driving force of the motor, an engaging portion follows through a first zone, and thereafter the cam member is driven by the driving force of the motor without using the biasing force of the biasing member, and the engaging portion follows through the second zone.

A blade driving device includes: a board including an opening; first and second blades opening and closing the opening; first and second actuators arranged adjacent to each other and respectively driving the first and second blades, and respectively including first and second stators, first and second rotors, and first and second coils; a printed circuit board; and solder portions electrically connecting the first and second coils with the printed circuit board; wherein the solder portions includes: first and second solder portions respectively connecting one end and another end of the first coil with the printed circuit board; and third and fourth solder portions respectively connecting one end and another end of the second coil with the printed circuit board; and the first, second, third, and fourth solder portions face one another.

A blade driving device includes: a board including an opening; first and second blades opening and closing the opening; first and second actuators arranged adjacent to each other and respectively driving the first and second blades, and respectively including first and second stators, first and second rotors, and first and second coils; a printed circuit board; and solder portions electrically connecting the first and second coils with the printed circuit board; wherein the solder portions includes: first and second solder portions respectively connecting one end and another end of the first coil with the printed circuit board; and third and fourth solder portions respectively connecting one end and another end of the second coil with the printed circuit board; and the first, second, third, and fourth solder portions face one another.

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.