Patent ID: 6104880
Filing Date: 2000-08-15
Classification: G02B

Abstract:
A lens driving controller comprising:a driving mechanism for driving a lens along an optical axis;a calculator for obtaining a lens driving amount to an in-focus position; anda detector for detecting a position of the lens,wherein the following lens driving control is performed under control of a predetermined controller:(1) the lens is driven in an in-focus direction in accordance with a lens driving amount obtained by the calculator;(2) the lens is driven in an opposite direction when the lens reaches a first lens position where a remaining driving amount to the in-focus position is a predetermined value;(3) information on a second lens position when the lens actually starts to move in the opposite direction is obtained;(4) a lens movement amount is obtained from the first lens position and the second lens position; and(5) remaining driving to the in-focus position and stop control are performed based on an obtained lens movement amount.