Method and apparatus for preventing the deviation of a focal pla

Details Method and apparatus for preventing the deviation of a focal pla Method and apparatus for preventing the deviation of a focal pla

1998-01-23

1999-11-16

Perkey, W. B.

Photography

Camera detail

Camera element cocking or resetting

396466, 396489, 396536, 396207, G03B 900

Patent

active

059845376

ABSTRACT:
An apparatus and a method for preventing the deviation of a focal plane shutter are disclosed. The apparatus has a back cover switch, a control unit and a shutter driver. The apparatus and method prevents the deviation of the focal plane shutter blade by opening the focal plane shutter when a back cover opens. The focal plane shutter is restored to an initial focal plane shutter state after the back cover is closed.

REFERENCES:
patent: 4688916 (1987-08-01), Dobashi et al.

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