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:
Sep. 16, 2003
Filed:
Oct. 01, 1999
Applicant:
Inventors:
Mark Shi Wang, Irvine, CA (US);
Chia-di Lee, Torrance, CA (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 1/500 ;
U.S. Cl.
CPC ...
G06K 1/500 ;
Abstract
An aspheric optical element corrects the non-linearity of the scan line in a ROS. The optical element can be either the wobble correction mirror, the last optical element in the ROS, or the output window, subsequent to the ROS. The optical element deflects the scan beam to cancel the non-linearity of the scan line caused by the residual errors in the ROS lens design. The aspheric optical element can also correct scan line bow.