Patent ID: 6160670
Filing Date: 2000-12-12
Classification: G02B

Abstract:
A camera comprising:a lens;moving means for moving the lens along an axis to switch focal length and to adjust focal point;driving means for driving the moving means;first pulse generating means for generating a pulse according to displacement of the moving means;a second pulse generating means for generating a pulse having a frequency higher than that of the pulse generated by the first pulse generating means; anda controller for controlling the driving means so that driving of the moving means is stopped so as to switch the focal length according to the pulse generated by the first pulse generating means, and for controlling the driving means so as to adjust the focal point based on the pulse generated by the first pulse generating means,wherein when the focal point is adjusted, the controller controls the driving means so that the driving means stops the driving of the moving means after the pulse is generated by the first pulse generating means, and a predetermined number of pulses are generated by the second pulse generating means.