Patent ID: 6118947
Filing Date: 2000-09-12
Classification: G03B

Abstract:
A method for driving a shutter of a camera in which focus compensation data are stored in a memory, the focus compensation data being a difference between a designed focus lens position and an actual focus lens position, comprising the steps of:determining whether a first shutter release is performed;determining a zoom position;measuring light and distance to the subject if the first shutter release is performed;determining both a focus position of the focus control lens to the subject and a light exposure according to the measured light and distance;reading the focus compensation data corresponding to the determined zoom position, from the memory;calculating a compensated focus position on the basis of the focus compensation data;determining whether a second shutter release is performed;moving the focus control lens to the compensated focus position, wherein an initial position of the focus control lens is the middle position among all focus control steps from a focus position for the farthest distance to a subject to a focus position for the closest distance to the subject; anddriving the shutter.