System and method for focusing, imaging and measuring areas on a workpiece engraved by an engraver
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 7, 1998
Grant Date -
N/A
app pub date -
Apr 3, 1995
filing date -
Feb 25, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
First Claim
Other Claims data not available