Automatic light adjustment means for an endoscope

Details Automatic light adjustment means for an endoscope Automatic light adjustment means for an endoscope

1990-07-11

1992-02-25

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358168, 128 6, A61B 104

Patent

active

050917790

ABSTRACT:
Apparatus for adjusting the quantity of light emitted by a light source for illuminating an object under examination by means of an endoscope fitted with a video camera, comprises a signal processing circuit including a window generating device and a window superimposition device for visually displaying and optically defining a window and which generates a measuring window in the video picture displayed by a monitor connected to the video camera and superimposes the measuring window on the video picture in the form of a frame. A video signal for adjusting the quantity of light emitted by the light source is integrated only within the measuring window.

REFERENCES:
patent: 3257506 (1966-05-01), Siepmann
patent: 4423436 (1983-12-01), Kimura
patent: 4628362 (1986-12-01), Waehnee
patent: 4688087 (1987-08-01), Ams et al.
patent: 4834071 (1989-05-01), Hosoi et al.
patent: 4963960 (1990-10-01), Takami
patent: 4967269 (1990-10-01), Sasagawa et al.

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