Endoscope apparatus for displaying images below the mucous membr

Details Endoscope apparatus for displaying images below the mucous membr Endoscope apparatus for displaying images below the mucous membr

1988-09-21

1990-07-31

Peng, John K.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358110, 128 6, H04N 718, H04N 5335, A61B 106

Patent

active

049454099

ABSTRACT:
An endoscope whereby the vein image below the mucous membrane within a body cavity or the like can be observed has an insertable part to be inserted into the body cavity and is provided with an illuminating window and observing window in the tip part of the insertable part. A light guide transmitting an illuminating light emitted from a light source is inserted through the insertable part. The illuminating light transmitted through the light guide is emitted from the illuminating window to illuminate an object to be observed. The reflected light from the object forms an image in an imaging apparatus through the observing window and the formed object is converted to an electric signal. A light separating filter separating the light entering the imaging apparatus into a plurality of wavelength bands is provided between the light source part and imaging apparatus. The output signal of the imaging apparatus is processed by a video signal processing circuit and is input into an operating circuit. This operating circuit operates the video signals relating to at least two wavelength bands which are output signals of the video signal processing circuit and outputs the result. The output of the operating circuit is delivered to a picture image displaying monitor.

REFERENCES:
patent: 4562831 (1986-01-01), Murakoshi et al.
patent: 4656508 (1987-04-01), Yokota

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