| 摘要 |
Electric power supplying device for an endoscope having a photographing device, a lamp for illuminating an object for observation and a lamp for illuminating the object for photographing. The device is adoptable to an automatic exposure control type having a photoelectric element and an endoscope of the manual exposure control type. The electric power supplying device has an exposure control device, a first, a second and a third relay. When an endoscope of the automatic exposure control type is connected, the observation lamp is energized and the photoelectric element is connected to the exposure control device and, upon actuation of release means of the endoscope, the first relay is energized to actuate a switching circuit so as to energize the photographing lamp and the exposure control device supplied with the output of the photoelectric element actuates the switching circuit to terminate the energization of the lamp. When an endoscope of the manual exposure control type is connected, the observation lamp is energized and, upon actuation of the release means, the second and the third relay are actuated so as to connect an electric source of adjustable voltage to the exposure control device so that a reference voltage manually set in the source is supplied to the exposure control device while the first relay is actuated by the third relay to actuate the switching circuit so as to energize the photographing lamp which is deenergized after a time period corresponding to the reference voltage by the actuation of the switching circuit controlled by the exposure control circuit.
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