Scanning device

Details Scanning device Scanning device

1974-05-10

1977-02-01

Smith, Alfred E.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356158, 356200, 356203, G02B 2717

Patent

active

040059260

ABSTRACT:
A method of scanning a path on a surface by means of parallel beams of radiant energy whereby to scan at least one path across at least one surface which comprises directing at least two parallel beams of radiant energy to strike individually a like number of faces of a rotating mirror polygon as there are beams of radiant energy thereby deflecting the reflected paths of the said beams through angles equal to twice the angular subtense of each polygon face at the polygon center, the said parallel beams of radiant energy after reflection from the faces of the mirror polygon falling at least on one surface.

REFERENCES:
patent: 3206606 (1965-09-01), Burgo et al.
patent: 3485546 (1969-12-01), Roth
patent: 3556664 (1971-01-01), Blaisdell et al.
patent: 3573849 (1971-04-01), Herriot et al.
patent: 3574469 (1971-04-01), Emerson
patent: 3646568 (1972-02-01), Woywood
patent: 3693021 (1972-09-01), Lake, Jr. et al.

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