Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1990-04-03
1993-03-23
Arnold, Bruce Y.
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359662, 359820, G02B 2608, G02B 702
Patent
active
051969572
ABSTRACT:
A scanner includes a light source for producing a light beam and a multifaceted polygon for directing the light beam to a spot on a surface to be scanned, such as at the surface of a photoreceptor or a document to be read, that is located at a predetermined location relative to the polygon and for moving the spot across the surface along a scan line or predetermined length. The scanner also includes a post-facet lens system with first and second elements configured to compensate for field curvature and wobble without compensating for scanner non-linearity. They are composed of plastic, the surfaces of the elements having curvature in both the scan plane and the cross-scan plane as well as less magnification than existing post-facet lens systems.
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Arnold Bruce Y.
Jodziewicz Matthew F.
Nguyen Thong
Olive Tree Technology, Inc.
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