Raster output scanner architecture employing rotating prism face

Details Raster output scanner architecture employing rotating prism face Raster output scanner architecture employing rotating prism face

1992-11-12

1993-11-16

Lerner, Martin

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359216, 250236, G02B 2608

Patent

active

052628876

ABSTRACT:
A raster scanning system is disclosed which utilizes a rotating prism for facet tracking. The rotating prism has a plurality of facets and each facet is parallel to an opposite facet. A light beam enters through one facet of the rotating prism and exits the corresponding parallel facet. The light beam passing through the rotating prism deflects and since the the prism rotates the light beam also shifts. The prism shifts the light beam in such a manner to keep the beam at the center of a mirror facet of a rotating polygon mirror.

REFERENCES:
patent: 2543463 (1951-02-01), Malm
patent: 3511551 (1970-05-01), Matulka
patent: 4300160 (1981-11-01), Pusch et al.
patent: 4717823 (1988-01-01), Steimel et al.

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