Rotating mirror optical scanning device

Details Rotating mirror optical scanning device Rotating mirror optical scanning device

1988-09-22

1990-05-08

Arnold, Bruce Y.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250235, G02B 2610

Patent

active

049232630

ABSTRACT:
An optical scanning device for mechanically scanning images at a high scan ate over a wide field of view and under low light conditions. The device comprises a first rotating reflecting means such as mirrors for intersecting an input beam of light in a first path and for redirecting the beam of light into a second path. A second rotating reflecting means intersects the second path and reflects the beam of light into a third path, onto a detecting device for detecting the presence of predetermined images in the beam of light. In order to reflect the light beams over an elliptical path the mirrors are mounted on rotating shafts at a slight angle from the perpendicular to the axis of the rotating shaft. The mirrors are rotated at varying speed relationships to each other and varying phase relationships to each other in order to produce a variety of scan patterns.

REFERENCES:
patent: 3783269 (1974-01-01), McConnell
patent: 4196461 (1980-04-01), Geary
patent: 4387952 (1983-06-01), Slusher

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