Automatic exposure control device for endoscope

Details Automatic exposure control device for endoscope Automatic exposure control device for endoscope

1984-10-04

1987-07-28

Coven, Edward M.

Surgery

Truss

Perineal

354 62, A61B 106

Patent

active

046825860

ABSTRACT:
An endoscope-use camera attached to the eyepiece section of an endoscope has conventionally been provided with an automatic exposure control device including a light sensing element and capable of automatically determining an exposure value in accordance with a quantity of light received. Disclosed herein is an automatic exposure control device which further comprises a control member disposed at the eyepiece section of an endoscope and having a shape depending on the thickness of an image transmitting optical system, and a device for determining in cooperation with the control member the correction value for an exposure value in accordance with the thickness of the image guide when the endoscope is attached to the camera.

REFERENCES:
patent: 2280561 (1942-04-01), Wappler
patent: 3486434 (1969-12-01), Suzuki et al.
patent: 3678823 (1972-07-01), Sato
patent: 3713369 (1973-01-01), Fuji
patent: 3782261 (1974-01-01), Araki
patent: 4153356 (1979-05-01), Hama

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