Camera having in-exposure zooming mechanism

Details Camera having in-exposure zooming mechanism Camera having in-exposure zooming mechanism

1993-06-10

1994-04-19

Gellner, Michael L.

354456, 35419512, G03B 700, G03B 7083, G03B 302

Patent

active

053050495

ABSTRACT:
A camera having an in-exposure zooming mechanism includes a shutter speed calculation unit for, when an in-exposure zooming mode is set, calculating a shutter speed suitable for the in-exposure zooming mode on the basis of an output from a luminance measurement unit for measuring a luminance of an object. A timer unit outputs a timing signal when the shutter speed elapses. When the timing signal is output, a judgment unit judges whether or not the in-exposure zooming mode is set. A drive control unit drives a motor to change a focal length of a zooming lens when it is determined that the in-exposure zooming mode is set. A shutter closing unit executes a shutter closing operation upon completion of the zooming operation.

REFERENCES:
patent: 4731629 (1988-03-01), Aoshima et al.
patent: 4896177 (1990-01-01), Kazami et al.

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