Title:
【発明の名称】彫刻誤差検出方法と装置
Document Type and Number:
Japanese Patent JPH11503086
Kind Code:
A
Abstract:
An error detection apparatus and method for use with engravers, such as gravure engravers. An error value E corresponding to the difference between a set of predetermined setup parameters and actual measurement of a portion of an engraved area on the cylinder is determined. The error value E is then used to adjust the engraver to engrave an actual cut or etch in accordance with the set of predetermined setup parameters. Advantageously, an error detection and correction system is suitable for providing a closed-loop system for engraving a cylinder. The apparatus and method may be used during initial setup or during normal operation of the engraver. Other features include an autofocus routine to facilitate the auto-focus procedure. Also, image processing is further enhanced by gap filling, discontinuity removal, and light calibration methods which may be used alone, in combination with each other, or in combination with the automatic focus system and/or automatic shoe system.
Inventors:
David Sahl
Serenius, Eric J.
Christopher, Michael Duane
Frannelly, David
Tsao way
Serenius, Eric J.
Christopher, Michael Duane
Frannelly, David
Tsao way
Application Number:
JP53030496A
Publication Date:
March 23, 1999
Filing Date:
March 13, 1996
Export Citation:
Assignee:
Ohio Electronic In Gravers Inc.
International Classes:
B41C1/02; B41C1/04; B41C1/045; B44B3/00; B44B3/06; G05B19/401; H04N1/00; H04N1/047; H04N1/203; H04N1/06; H04N1/19; H04N1/40; (IPC1-7): B41C1/045
Attorney, Agent or Firm:
Masatake Shiga (1 person outside)