Patent ID: 8360966

Claim:
A lens drive control apparatus that controls a lens drive system that has a lens frame that holds a lens so as to be movable forward and backward in an optical axis direction of an optical lens, and a transmitting member that transmits to the lens frame a driving force generated by a strain deformation of a shape memory alloy member that exhibits a predetermined hysteresis characteristic between a temperature and an amount of deformation, comprising: a control section that, at a timing at which an instruction that causes the lens frame to move forward or backward stops, performs control that changes a temperature of the shape memory alloy member to a temperature belonging to a dead zone of the predetermined hysteresis characteristic, thereby preventing a position of the lens frame from fluctuating, wherein: while the instruction is continuing, the control section performs control that changes the temperature of the shape memory alloy member by continuing to change an applied voltage to the shape memory alloy member in an increasing/decreasing direction in accordance with the instruction, and at a timing at which the instruction stops, the control section performs control that changes the temperature of the shape memory alloy member to a temperature belonging to a dead zone of predetermined hysteresis characteristic by changing in the applied voltage to the shape memory alloy member by a predetermined amount in an opposite direction to the increasing/decreasing direction in which the applied voltage is changed while the instruction is continuing, and maintaining the applied voltage that is changed.