Light scanning device with polarizing device to make light trans

Details Light scanning device with polarizing device to make light trans Light scanning device with polarizing device to make light trans

1987-12-31

1991-04-23

Henry, Jon W.

350 68, 350399, 350400, G02B 2610, G02B 2602

Patent

active

050094726

ABSTRACT:
A light scanning device comprising a light source portion equipped with a semiconductor laser, a deflecting system for deflecting light beam emitted by the light source portion, a scanning lens for imaging light beam deflected by the deflecting system on a subject to be scanned, and a polarizing device for changing a polarized state of light beam so that the vibrating plane of an electric field vector of light beam entering into the scanning lens does not become perpendicular to a plane of incidence which includes an optical axis of the scanning lens and an incident direction of the light beam.

REFERENCES:
patent: 3801182 (1984-04-01), Jones
patent: 4715699 (1987-12-01), Morimoto
patent: 4796961 (1989-01-01), Yamada et al.
patent: 4796965 (1989-01-01), Ishikawa
IBM Tech. Dis. Bull., "CO.sub.2 Laser Scanning . . . " vol. 29, No. 12, May 1987 pp. 5197-5199.
Donald A. Dery, "Controlling Light . . . ", Manufacturing Optician, vol. 17, No. 6, Mar. 1964, pp. 268-270.

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