Camera having a remote control function

Details Camera having a remote control function Camera having a remote control function

1990-03-15

1992-06-02

Adams, Russell E.

354131, G03B 300

Patent

active

051191237

ABSTRACT:
A camera having a remote controller. The automatic focusing mechanism of the camera measures a distance from the camera to a main object positioned within approximately the center region of a focus area and automatically obtains a in-focus condition in correspondence with the measured object distance. The camera includes a memory for storing a maximum object distance at which in-focus conditions are obtained by the automatic focusing mechanism in a remote control photographing mode. When the main object is photographed in the remote control photographing mode, a comparing device compares an object distance measured by the automatic focusing mechanism and the maximum object distance set in the memory with each other. If the measured object distance is less than the maximum object distance, an optical system is adjusted to a normal photographing mode. If the main object is positioned outside the focus area and the object distance measured by the automatic focusing mechanism is longer than the maximum object distance, the measured data is altered to the maximum object distance. According to a modified camera having the automatic focusing mechanism and an automatic exposure mechanism, in a photographing under the same light condition, an aperture size in the remote control mode is set to be larger than an aperture size set by the automatic exposure mechanism in the normal photographing mode.

REFERENCES:
patent: 4289388 (1981-09-01), Wakabayashi et al.
patent: 4472045 (1984-09-01), Alyfuku et al.
patent: 4582413 (1986-04-01), Suzuki et al.
patent: 4651216 (1987-03-01), Arai et al.
patent: 4864340 (1989-09-01), Kaneko

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