Patent ID: 9581880
Date: 2017-02-28
CPC Classifications: G03B

Claim:
1. A shutter device comprising: a first shutter driving mechanism including a first motor, a first driven member configured to be driven by the first motor, and a first light shielding member configured to be driven by the first driven member so as to open or close an aperture; a second shutter driving mechanism including a second motor, a second driven member configured to be driven by the second motor, and a second light shielding member configured to be driven by the second driven member so as to open or close an aperture; and a control unit configured to control the first motor and the second motor, wherein in a case where the shutter device performs a first-frame shooting operation, the control unit controls the first motor and the second motor such that the first shutter driving mechanism performs an exposure operation prior to an exposure operation of the second shutter driving mechanism, wherein in a case where the shutter device performs a second-frame shooting operation directly after the first-frame shooting operation, the control unit controls the first motor and the second motor such that the second shutter driving mechanism performs an exposure operation prior to an exposure operation of the first shutter driving mechanism, wherein each of the first and second driven members is configured to provide a first driven zone and a second driven zone, wherein in a case where the first and second driven members are driven in the first driven zone, the first and second light shielding members maintain the closed state or the open state and do not continue to travel in a same direction, even if the first driven member or the second driven member is moved, and wherein in a case where the first and second driven members are driven in the second driven zone, the first and second light shielding members travel from the closed state to the open state or from the open state to the closed state.