Computer type electronic flash device

Details Computer type electronic flash device Computer type electronic flash device

1982-06-08

1985-01-15

Moore, David K.

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Load device irradiating the radiant energy responsive device

315241P, H05B 3702

Patent

active

044940440

ABSTRACT:
The disclosed computer type electronic flash device has a light measuring circuit which produces a flash terminating signal upon receipt of light reflected from an object to be photographed. Connected to this light measuring circuit is a control circuit which renders the former inoperative after the lapse of time required by a flash tube for terminating emission of a flash light. This arrangement precludes a commutating circuit from being rendered conductive again after termination of flash by the flash tube.

REFERENCES:
patent: 3714443 (1973-01-01), Ogawa
patent: 4379983 (1983-04-01), Takematsu

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