Method of selectively tinting cast lenses
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 3, 1987
Grant Date -
N/A
app pub date -
Oct 7, 1985
filing date -
Oct 7, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of coloring predetermined areas of cast contact lenses by placing a coating of soluble dye on the mold surface in the area to be colored. The liquid lens monomer is added to the mold and dissolves the dye from the mold surface before being polymerized to form a solid contact lens. After being polymerized the lens containing the dye in its polymer structure is removed from the mold.
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Cited Art Landscape
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