Extended range correct exposure annunciator

Details Extended range correct exposure annunciator Extended range correct exposure annunciator

1975-12-19

1976-11-23

LaRoche, Eugene

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Condenser in shunt to the load device and the supply

315134, 315135, 315151, 354 33, 354128, H05B 4132

Patent

active

039939286

ABSTRACT:
An electronic flash apparatus includes a correct exposure annunciator which operates if light received from the subject exceeds a predetermined percentage of the required illumination.

REFERENCES:
patent: 3706911 (1972-12-01), Wilwerding
patent: 3809954 (1974-05-01), Engelstatter
patent: 3814985 (1974-06-01), Pecher et al.
patent: 3914647 (1975-10-01), Broekstra et al.

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