Automatic dimmer for endoscope

Details Automatic dimmer for endoscope Automatic dimmer for endoscope

1984-09-05

1986-11-11

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

128 6, 358 42, 358 44, 358168, A61B 104, A61B 106, H04N 5235, H04N 1106

Patent

active

046225846

ABSTRACT:
Automatic dimmer for endoscope to automatically set to a proper value the quantity of light to irradiated to a subject or the quantity of light reflected from the subject to the solid pickup element. This equipment forms the dimmer signal on basis of the signal level output from the solid pickup element and controls the quantity of light passed on the light quantity changing member provided on the path of illuminating light irradiated from the light source to the subject or on the path of the light received by the solid pickup element.

REFERENCES:
patent: 3774173 (1973-11-01), Love
patent: 4527552 (1985-07-01), Hattori
patent: 4532918 (1985-08-01), Wheeler

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