Aperture value control device utilizing frequency signal from fl

Details Aperture value control device utilizing frequency signal from fl Aperture value control device utilizing frequency signal from fl

1984-09-07

1985-06-04

Adams, Russell E.

G03B 1505

Patent

active

045210942

ABSTRACT:
The aperture value in a camera having a flash unit is controlled by a frequency signal from the flash unit. The frequency of the signal is variable in accordance with the light emission characteristics of the flash unit.

REFERENCES:
patent: 4058816 (1977-11-01), Nobusawa
patent: 4299463 (1981-11-01), Kawamura et al.
patent: 4367932 (1983-01-01), Ishikawa et al.
patent: 4371243 (1983-02-01), Takishima et al.

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