Patent
1984-07-23
1987-05-05
Corbin, John K.
G02B 2608
Patent
active
046627090
ABSTRACT:
An internally reflecting rotating polygon system for correcting wobble by double reflection from the active facet without bow is disclosed. Instead of the impinging light source being transverse to the axis of rotation of a rotating polygon, this rotating polygon 52 having internally reflecting facets 54 at a draft angle to the axis of rotation, a collimated light source impinges upon a rotating polygon 52 with the facets 54 having the predetermined draft angle D. A., and angles of incidence at the first and second reflections. By two further reflections, 56, 58, the light is then reimpinged upon the same facet 54; wobble is similarly corrected, but with no effects of bow.
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Minami et al. Proc. SPIE Optical Systems Engineering, vol. 193, pp. 202-208.
Proceedings of SPIE--The International Society for Optical Engineering, vol. 498, Laser Scanning and Recording, Recent Advances in Computer Driven Laser Scanners for Graphic Arts, by R. E. Gillespie, pp. 128-133, Aug. 1984.
Corbin John K.
Lemmo Vincent J.
Weiss Franklin C.
Xerox Corporation
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