Video endoscope aperture wheel drive system

Details Video endoscope aperture wheel drive system Video endoscope aperture wheel drive system

1988-07-20

1990-02-13

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

128 6, 358168, A61B 104, A61B 106, H04N 5238

Patent

active

049011448

ABSTRACT:
A video endoscope aperture wheel drive system effective to position a predetermined aperture formed in an aperture wheel in an optical path of an image generated by an imaging device viewing an object, while eliminating oscillation of the aperture wheel caused by the rotational stepping of the aperture wheel in either direction in response to movement of a video probe in which an imaging device is positioned. The aperture wheel motor is rotated clockwise or counter-clockwise in response to the proximity of the imaging device relative to the object being viewed.

REFERENCES:
patent: 4523224 (1985-06-01), Longacre
patent: 4532918 (1985-08-01), Wheeler
patent: 4539586 (1985-09-01), Danna
patent: 4546379 (1985-10-01), Sarofeen
patent: 4653478 (1987-03-01), Nagasaki

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