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:
Aug. 15, 2000
Filed:
Dec. 21, 1998
Applicant:
Inventor:
Anthony Ang, Long Beach, CA (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359216 ; 359217 ; 359218 ; 359204 ; 359206 ; 359207 ; 347233 ; 347243 ;
Abstract
A dual infrared beam raster scanning system has overfilled facets on the rotating polygon mirror and a double pass through a two cylindrical lens element f-theta lens group. The raster scanning system has an aspheric collimator lens, an aperture and a four lens element cylindrical lens group in the pre-polygon optics, and a two cylindrical lens element f-theta lens group and a cylindrical wobble correction mirror in the post-polygon mirror optics.