Abstract: An imaging device includes a detector that repeatedly carries out a series of operation of generating an evaluation value to evaluate the degree of focusing of a position after driving of a lens toward one end part in the drive range of the lens, and detects the evaluation value of a position that is closer to the end part than the position of the evaluation value of the highest degree of focusing and is immediately adjacent or adjacent across a predetermined number of positions to the position of the evaluation value of the highest degree of focusing. The imaging device further includes a drive controller that makes the series of operation be repeatedly carried out toward the other end part in the drive range of the lens, and drives the lens to a position of a degree of focusing not smaller than the detected evaluation value.

Abstract: An imaging apparatus includes: a supplying section configured to supply a driving command for driving at least a portion of a lens in a specific direction to a focal-point adjustment device for changing or adjusting a focal-point distance in accordance with power supplied to the focal-point adjustment device; and an inference section configured to infer a position, at which the lens is located after being driven in accordance with the driving command in the specific direction, on the basis of the driving command supplied to the focal-point adjustment device and on the basis of error information serving as information on an error of a driving quantity by which the lens driven by the focal-point adjustment device is moved.

Abstract: An imaging apparatus includes: a supplying section configured to supply a driving command for driving at least a portion of a lens in a specific direction to a focal-point adjustment device for changing or adjusting a focal-point distance in accordance with power supplied to the focal-point adjustment device; and an inference section configured to infer a position, at which the lens is located after being driven in accordance with the driving command in the specific direction, on the basis of the driving command supplied to the focal-point adjustment device and on the basis of error information serving as information on an error of a driving quantity by which the lens driven by the focal-point adjustment device is moved.

Abstract: An imaging device includes a detector that repeatedly carries out a series of operation of generating an evaluation value to evaluate the degree of focusing of a position after driving of a lens toward one end part in the drive range of the lens, and detects the evaluation value of a position that is closer to the end part than the position of the evaluation value of the highest degree of focusing and is immediately adjacent or adjacent across a predetermined number of positions to the position of the evaluation value of the highest degree of focusing. The imaging device further includes a drive controller that makes the series of operation be repeatedly carried out toward the other end part in the drive range of the lens, and drives the lens to a position of a degree of focusing not smaller than the detected evaluation value.