Flash unit having plural flashlamps

Details Flash unit having plural flashlamps Flash unit having plural flashlamps

1980-10-16

1982-11-23

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Load device irradiating the radiant energy responsive device

315152, 315241P, 315323, H05B 4134

Patent

active

043607640

ABSTRACT:
An electronic flash unit is disclosed which includes one flashlamp arranged to illuminate an object from the front side thereof and another flashlamp which is rotatably mounted and arranged to direct light at an angle such as to illuminate the object after reflection. Circuitry is provided for accurately controlling the relative illumination provided by the lamps and also for obtaining the optimum total exposure.

REFERENCES:
patent: 3590314 (1971-06-01), Krusche
patent: 3912968 (1975-10-01), Nakamura
patent: 4012665 (1977-03-01), Nakamura et al.
patent: 4242616 (1980-12-01), Takematsu

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