Computer type electronic photoflash

Details Computer type electronic photoflash Computer type electronic photoflash

H - Electricity

05

B

315/10, 240/76

H05B 41/32 (2006.01) G03B 15/03 (2006.01) G03B 15/05 (2006.01)

Patent

CA 1149860

ABSTRACT OF THE DISCLOSURE The invention relates to a computer type electronic photoflash. It includes a computer type main photoflash unit having at least a discharge capacitor, a discharge tube oper- ative to produce a light flash through discharge of electrical charges stored in the capacitor and components for controlling the photoflash light volume of the discharge tube. A plurality of adapters are connectable to the main photoflash unit and capable of being mounted to different versions of photographic cameras using different systems for interconnecting a photo- flash unit with the camera. Each of the adapters has an elec- tric circuit for conveying electrical signals between it and the associated camera. Finally, there is included a photometric circuit. The photometric circuit is operative when the light received by a photoelectric light receiving element has attained a predetermined value to actuate the components for controlling the photoflash light volume of the discharge tube.

346146

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