Photographing apparatus for an endoscope

Details Photographing apparatus for an endoscope Photographing apparatus for an endoscope

1980-02-06

1981-08-18

Hix, L. T.

354 50, 354 62, 354173, G03B 7083, A61B 104

Patent

active

042843383

ABSTRACT:
A camera for an endoscope has a transmitting circuit for transmitting a release signal and a modulated signal modulated by a photocurrent signal, and a superposing circuit for superposing the modulated signal onto a motor drive line connecting to a film wind motor. A light source unit has a demodulated circuit for demodulating the modulated signal transmitting from the transmitting circuit, through the motor drive line. An exposure measuring circuit calculates an optimum exposure by using the demodulated signal from the demodulating circuit.

REFERENCES:
patent: 3599630 (1971-08-01), Sato et al.

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