Endoscope having illuminance ratio adjusting device between movi

Details Endoscope having illuminance ratio adjusting device between movi Endoscope having illuminance ratio adjusting device between movi

1991-07-08

1994-07-26

Grieb, William H.

Surgery

Truss

Perineal

348 69, 348221, A61B 106

Patent

active

053319494

ABSTRACT:
An endoscope in which moving and still picture image pickup operations are alternatively carried out, and a light source emits either a continuous light or a pulsed light in the moving or still picture image pickup operations, a detector detects illuminances of moving and still picture images in the moving and still picture image pickup operations to obtain an illuminance ratio between the moving and still picture images, and the illuminance ratio is adjusted to a certain value by an adjuster on the basis of the illuminance ratio detected by the detector.

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patent: 4872029 (1989-10-01), Kato

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