Automatic focusing device

Details Automatic focusing device Automatic focusing device

1991-11-29

1993-08-24

Adams, Russell E.

354402, 354409, G03B 1336

Patent

active

052393305

ABSTRACT:
An automatic focusing device, in which a focus lens is driven by tracking an object-in-motion to obtain an in-focus state, based upon a focus prediction that is executed from repeated distance measurements. In-focus indicating is executed only when the focus lens is in the in-focus condition and the object-in-motion is moving at a speed that is less than a predetermined speed.

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French Search Report and Annex.

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