Indicating device for computer type electronic flash apparatus

Details Indicating device for computer type electronic flash apparatus Indicating device for computer type electronic flash apparatus

1980-11-12

1983-05-10

Perkey, William B.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Plural load device systems

354 35, 354127, 354149, 315151, 315241P, 362 4, 362 5, 235 647, 116213, G03B 1505, G06C 300, H05B 4136

Patent

active

043826660

ABSTRACT:
An indicating device of computer type electronic flash apparatus has a plurality of display members representing respective limited distance ranges for correct exposure of an object to be photographed. Each of the display members corresponds to a respective set diaphragm value. The indicating device further includes a plurality of indicating marks provided on the same plane of said display members and corresponding to respective set diaphragm values. With this device, it is possible to be aware of the proper distance range satisfactorily.

REFERENCES:
patent: 3071056 (1963-01-01), Gebele
patent: 3386358 (1968-06-01), Kropp
patent: 3903397 (1975-09-01), Yata et al.
patent: 3928117 (1976-09-01), Betlejewski
patent: 4023188 (1977-05-01), Ueda et al.
patent: 4047194 (1977-09-01), Nakamura et al.
patent: 4080612 (1978-03-01), Maitani et al.
Braun 2000 Vario Computer, Instructions for use, West Germany, Nov. 1973.

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