Erroneous release preventing device for camera

Details Erroneous release preventing device for camera Erroneous release preventing device for camera

1984-01-17

1985-08-13

Adams, Russell E.

3542891, G03B 1738

Patent

active

045346348

ABSTRACT:
A device for preventing erroneous shutter release in an electronic release type camera having an automatic aperture control function, a bulb function and a self-timer function. The device includes an automatic aperture controlling switch which is turned on when an automatic aperture control photographing mode is selected, a bulb photographing switch which is turned on when a bulb photographing mode is selected, and a self-timer switch which is turned on when a self-timer photographing mode is selected. An erroneous operation detecting circuit produces a warning signal when the bulb photographing switch and the automatic aperture control switch are turned on simultaneously, or when the bulb photographing switch and the self-timer switch are turned on simultaneously. The warning signal is applied to prevent a release magnet control circuit from energizing an electromagnet which effects release of the shutter of the camera when the warning signal is present.

REFERENCES:
patent: 4269494 (1981-05-01), Shiozawa et al.
patent: 4299469 (1981-11-01), Kurosu et al.

Affiliated with

Also associated with

Rating

Erroneous release preventing device for camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Erroneous release preventing device for camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Erroneous release preventing device for camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2315454