Motion compensation drive stop device which prevents excessive i

Details Motion compensation drive stop device which prevents excessive i Motion compensation drive stop device which prevents excessive i

1995-06-19

1997-10-14

Perkey, W. B.

Photography

Camera shake sensing

Having stabilization system

G03B 500

Patent

active

056780680

ABSTRACT:
A motion compensation device which prevents excessive image motion during exposure due to an error in target drive speed of a motion compensation drive device. The motion compensation device includes a photographic optical system, a motion detection device to detect motion of the photographic optical system, and a motion compensation drive device to shift at least a portion of the photographic optical system and an imaging plane relative to each other. A motion compensation control unit generates a motion compensation control signal for the motion compensation drive based on the output of the motion detection device. A motion compensation drive stop device stops the motion compensation drive after a specified amount of time has passed since motion compensation control started, regardless of whether the motion compensation control unit is generating a motion compensation control signal to drive the motion compensation drive.

REFERENCES:
patent: 5220375 (1993-06-01), Ishida et al.

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