Electronic endoscope apparatus employing automatic light source

Details Electronic endoscope apparatus employing automatic light source Electronic endoscope apparatus employing automatic light source

1989-06-01

1990-10-16

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

128 6, A61B 106

Patent

active

049639609

ABSTRACT:
In an electronic endoscope apparatus, a light source such as a xenon lamp is automatically turned off when the endoscope examination is accomplished, under the control of a video signal processing unit. The electronic endoscope apparatus includes a light source for illuminating an interior portion of a biological body under medical examination; an image sensor for imaging the interior portion of the biological body by receiving light reflected therefrom to produce an image signal; a converter for converting the image signal into a corresponding video signal; and, a signal processing unit for detecting that variations in levels of the video signal are continued for a predetermined duration time to output a detection signal, and for turning off the light source in response to the detection signal.

REFERENCES:
patent: 4433675 (1984-02-01), Konoshima
patent: 4561429 (1985-12-01), Sato et al.
patent: 4646724 (1987-03-01), Sato et al.

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