Photographic camera provided with automatic preparation for phot

Details Photographic camera provided with automatic preparation for phot Photographic camera provided with automatic preparation for phot

1994-10-18

1996-05-21

Perkey, W. B.

G03B 726

Patent

active

055194680

ABSTRACT:
A photographic camera is provided with an automatic preparation function including a built-in microcontroller and a solar cell provided on an outer surface of the camera, wherein an electromotive force generated by the solar cell energizes the microcontroller and thereby makes the camera ready for photographing and wherein, if no electromotive force is generated by the solar cell within a predetermined period, the microcontroller is de-energized and the camera is made not ready for photographing. The microcontroller is automatically energized to make the camera ready for photographing as the solar cell generates an electromotive force, so the camera can be made ready for photographing without any manual operation of the main switch control element by the user and the possibility that a photographing opportunity may be missed can be minimized. No electromotive force is generated by the solar cell so far as the camera remains stored away in the camera case or laid in the dark. In this state, therefore, the microcontroller is not energized, the main switch is turned OFF and, thus, the camera is made not ready for photographing. As a consequence, the main capacitor in the strobe circuit is not further charged and the automatic exposure metering function also is no longer actuated. Consumption of the built-in source battery is thereby minimized.

REFERENCES:
patent: 4142788 (1979-03-01), Matsumoto et al.
patent: 4328456 (1982-05-01), Suzuki et al.
patent: 4429974 (1984-02-01), Suzuki
patent: 5053804 (1991-10-01), Odaka et al.
patent: 5376985 (1994-12-01), Saito et al.

Affiliated with

Also associated with

Rating

Photographic camera provided with automatic preparation for phot does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photographic camera provided with automatic preparation for phot, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic camera provided with automatic preparation for phot will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2042362