Flash responsive exposure time control system

Details Flash responsive exposure time control system Flash responsive exposure time control system

1979-08-27

1981-03-17

Griffin, Donald A.

G03B 716

Patent

active

042563917

ABSTRACT:
An exposure time control system includes a circuit which denergizes a shutter control circuit and an electromagnet and causes a shutter closure when an electronic flash device is triggered to fire an electronic flash tube. The system further includes a power supply circuit and a self-maintaining circuit for maintaining the power supply circuit at its active condition after it is activated even after a power switch therefor is opened. A signal generated upon the trigger of the flash device releases the self-maintenance of the power supply.

REFERENCES:
patent: 3568582 (1971-03-01), Uchida et al.
patent: 3756132 (1973-09-01), Ogawa
patent: 3779141 (1973-12-01), Veda et al.
patent: 3809954 (1974-05-01), Engelstatter
patent: 4140379 (1979-02-01), Von Fischern

Affiliated with

Also associated with

Rating

Flash responsive exposure time control system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flash responsive exposure time control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flash responsive exposure time control system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1643272