Image blur prevention apparatus

Details Image blur prevention apparatus Image blur prevention apparatus

1996-05-01

2000-04-04

Blankenship, Howard B.

Photography

Camera shake sensing

Having stabilization system

G03B 1700

Patent

active

060471336

ABSTRACT:
A movable optical unit includes a light beam deflector for preventing an image blur or the like. A position detector detects a position of the movable optical unit. The position detector incudes an arrangement for substantially pre-matching a center position of a displacement of the optical unit with a mechanical initial position of the optical unit. The mechanical initial position is, for example, a balanced position with gravity or a lock position. Thus, the center position of displacement can be pre-matched with the mechanical initial position. In addition, characteristics of the matching operation may be varied corresponding to an output of the position detector. Thus, the matching operation can be quickly performed.

REFERENCES:
patent: 4869108 (1989-09-01), Washisu
patent: 4965619 (1990-10-01), Shikaumi et al.
patent: 5020369 (1991-06-01), Washisu et al.
patent: 5153633 (1992-10-01), Otani

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