Automatic means for controlling dosage of illuminating light for

Details Automatic means for controlling dosage of illuminating light for Automatic means for controlling dosage of illuminating light for

1984-08-31

1986-07-22

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

128 6, 358 41, 358168, H04N 718

Patent

active

046022813

ABSTRACT:
The invention relates to means for controlling automatically the intensity of illuminating light for picking up an object to be observed by an endoscope assembly to an level suitable for the observation of object by controlling the output from power source for actuating the light source by the electrical signals issued correspondingly to the dosage on a solid pickup element. The means receive the electrical signals issued from the solid pickup element to form brightness signals, which are applied on the power source for actuating the light source to control the output therefrom depending on the level of brightness signals, thereby controlling automatically the illuminating intensity of light issued from the light source to a level suitable for picking up the image of object.

REFERENCES:
patent: 4074306 (1978-02-01), Kakinuma
patent: 4532918 (1985-08-01), Wheeler
patent: 4535758 (1985-08-01), Longacre

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