JPH0312573U - - Google Patents

Description

[Brief explanation of drawings]

The drawings show one embodiment of the electronic still camera of the present invention, in which Fig. 1 is a circuit block diagram, Fig. 2 is an explanatory diagram of each area into which the photographic screen is divided, and Fig. 3 is an explanation of the predicted size of the main object. 4 are flowcharts for explaining the operation. 1... Shooting lens body, 2... Focus lens, 6... CCD image sensor, 7... High pass filter, 8... A/D converter, 12... Arithmetic control circuit, a11 to a55... AF area .

Claims (1)

[Scope of Claim for Utility Model Registration] Division/integration means for integrating a high-frequency component of a video signal of an image sensor provided at an imaging position of a photographing lens body for each of a plurality of regions obtained by dividing a photographing screen; and the photographing lens. a focus motor that moves a focus lens on the body; and a search that drives the focus motor during an initial search for focus control to move the focus lens over the entire range between a near point and an infinity point. movement control means; detection means for detecting the size of the in-focus portion of the photographic screen at a plurality of positions of the focus lens at the time of the initial search based on the integration results of each area of the division and integration means; prediction means for predicting the size of the main object on the photographing screen according to the focal length of the photographing lens body; An electronic still camera comprising: a position determining means for determining a focus position; and a focus movement control means for driving the focus motor to move the focus lens to the focus position based on the determination result of the determination means. .