Engraver and method for focusing and measuring areas on a workpiece engraved by the engraver

An engraver for engraving a plurality of cells on a surface of a cylinder engraver comprising:

• a support for rotatably supporting said cylinder;
• an engraving head for engraving said cylinder, said engraving head being mounted in operable relationship with said cylinder when said cylinder is rotatably mounted on said engraver;
• and
• an image system associated with said engraving head for capturing an image of an engraved area on said surface;
• wherein said image system further comprises:
• a video processor coupled to said image system for generating at least one dimension value corresponding to said image;
• said image system comprising an illuminator capable of illuminating said area to a plurality of light intensity levels.

An engraver for engraving a plurality of cells on a surface of a cylinder engraver comprising:

• a support for rotatably supporting said cylinder;
• an engraving head for engraving said cylinder, said engraving head being mounted in operable relationship with said cylinder when said cylinder is rotatably mounted on said engraver;
• an image system associated with said engraving head for capturing an image of an engraved area on said surface;
• and
• wherein said system comprises:
• a focus area and an engraved area, said image system comprising a light calibrator coupled to a video processor for illuminating said focus area to a first predetermined light intensity and for illuminating said engraved area with a second predetermined light intensity.

An engraver for engraving a plurality of cells on a surface of a cylinder engraver comprising:

• a support for rotatably supporting said cylinder;
• an engraving head for engraving said cylinder, said engraving head being mounted in operable relationship with said cylinder when said cylinder is rotatably mounted on said engraver;
• an image system associated with said engraving head for capturing an image of an engraved area on said surface;
• and
• wherein said image comprises:
• an undesired image comprising an associated plurality of chords, said image system further comprising:
• an image eliminator for eliminating any of said associated plurality of chords.

An engraver for engraving a plurality of cells on a surface of a cylinder engraver comprising:

• a support for rotatably supporting said cylinder;
• an engraving head for engraving said cylinder, said engraving head being mounted in operable relationship with said cylinder when said cylinder is rotatably mounted on said engraver;
• an image system associated with said engraving head for capturing an image of an engraved area on said surface;
• and
• wherein said image system comprises a light source and further comprises:
• a light calibrator for calibrating the light source to a predetermined intensity level;
• wherein said light calibrator comprises a light calibration processor for generating an intensity index and focal index and also for determining an approximate focal distance using said intensity index and a actual focal distance using said focal index.