Exposure system for a camera

Details Exposure system for a camera Exposure system for a camera

1981-03-19

1983-12-27

Perkey, William B.

354416, 354420, 354480, G03B 1505

Patent

active

044227434

ABSTRACT:
An exposure system for a camera includes a light emitting apparatus for emitting an artificial light toward an object. The light emitting apparatus is capable of selectively emitting a first type of light which flashes instantaneously, and a second type of light which flashes for a prolonged period of time. The intensity is maintained constant during the prolonged period of time. A camera produces a mode signal for switching the light emitting apparatus between a first mode in which the instantaneous flash light is emitted and a second mode in which the prolonged flash light is emitted.

REFERENCES:
patent: 3465656 (1969-09-01), Wick et al.
patent: 3626246 (1971-12-01), Higuchi
patent: 3716752 (1973-02-01), Iwata
patent: 3846811 (1974-11-01), Nakamura et al.
patent: 3998534 (1976-12-01), Schulze et al.
patent: 4117375 (1978-09-01), Bachur et al.
patent: 4167313 (1979-09-01), Tsunefuji
patent: 4256995 (1981-03-01), Ishida

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