Patent ID: 8118502

Claim:
A control method for a light control apparatus comprising: a drive step of moving a light control member from a first position to a second position and from the second position to the first position by a drive source; a detection step of detecting the position and state of the light control member, at least one of an operation state during movement from the first position to the second position or from the second position to the first position and a positional state in which the light control member stays stationary being detected, the operation state including a first operation state that continues from the start of application of the drive signal to the drive source to the start of movement of the light control member and a second operation state that continues from the start of movement of the light control member to the stop of the light control member at a specific position; and a drive signal application step of applying a desired drive signal to the drive source in accordance with the position or state of the light control member detected in the detection step, a first drive signal being applied in the first operation state, and a second drive signal being applied in the second operation state.