The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 16, 1993
Filed:
Nov. 12, 1992
Applicant:
Inventor:
Amatzia Feinberg, Los Angeles, CA (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359211 ; 359216 ; 250236 ;
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.