Device and method for marking ophthalmic lenses and molds
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United States of America Patent
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-
Oct 5, 1999
Grant Date -
N/A
app pub date -
Jul 31, 1997
filing date -
Jul 31, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Device and method for accurately recreating verification markings with removable ink on progressive ophthalmic lenses and molds are provided. The device includes (a) a stage which defines a coordinate system and which is adapted for receiving a lens or mold; (b) a magnifying device for locating the reference marks on the lens or mold surface; (c) a computer for storing coordinates from the platform wherein the coordinates represent the locations of two reference marks on the lens or mold surface; and (d) a pen device adapted to be positioned over the surface of the lens or mold wherein the pen device is controlled by the computer for applying the verification markings on the lens or mold surface.
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