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:
Oct. 14, 2003
Filed:
Dec. 10, 2001
Applicant:
Inventor:
Norman F. Rolfe, Carlisle, MA (US);
Assignee:
Agfa Corporation, Wilmington, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 2/740 ; G02B 2/764 ; G02B 7/04 ;
U.S. Cl.
CPC ...
G02B 2/740 ; G02B 2/764 ; G02B 7/04 ;
Abstract
The present invention provides an autofocus system for an imaging system, such as an external drum platesetter. The autofocus system automatically focuses each of a plurality of scan lines produced by an imaging system on a supply of recording material, and includes a control loop with scan line to scan line feedforward of a motor command waveform.