Camera with the shutter time control circuit for the flash light

Details Camera with the shutter time control circuit for the flash light Camera with the shutter time control circuit for the flash light

1976-11-05

1978-10-24

Gellner, Michael L.

354 51, 354149, G03B 708, G03B 1505

Patent

active

041224671

ABSTRACT:
The present invention relates to a shutter time control circuit of the type in which the shutter time is changed over into a predetermined value for flash light photography in response to a flash charge completion signal from the flash light device. In order to eliminate the shortcoming of the conventional shutter time control circuit of this type, in that when the shutter time is changed over into the value predetermined for flash light photography predetermined shutter time is memorized in a memory capacitor for controlling the shutter time in accordance with the value memorized after the charge completion signal has disappeared.

REFERENCES:
patent: 3667357 (1972-06-01), Matsuda
patent: 3675547 (1972-07-01), Uchiyama et al.
patent: 3974509 (1976-08-01), Tsuda et al.

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