Automatic focusing device

Details Automatic focusing device Automatic focusing device

1993-07-13

1994-10-25

Adams, Russell E.

354402, G03B 1336

Patent

active

053593820

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. The amount of the lens drive for tracking is computed by taking the time required for integrating the distance measurements into account.

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