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:
Apr. 18, 2000
Filed:
Jan. 29, 1999
Applicant:
Inventors:
Norman F Rolfe, Carlisle, MA (US);
Steven E Mason, North Andover, MA (US);
Jeffrey Knox, Lynnfield, MA (US);
Arkady B Chernin, Marblehead, MA (US);
Assignee:
Agfa Corporation, Wilmington, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; G02F / ; G02B / ;
U.S. Cl.
CPC ...
359285 ; 359307 ; 359305 ; 359310 ; 359239 ; 359287 ; 348769 ;
Abstract
A laser beam intensity modulation system has a variable delay circuit that is used to control the relative delay in the delivery of a video signal between two cascaded AOM's. This delay circuit is controlled by a delay controller that monitors the intensity modulation of the laser beam to provide feedback control. This system maximizes the rise and fall times of the beam to generate precise beam modulation required for high speed image setters.