Method and apparatus for producing a contact lens
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 15, 1990
Grant Date -
N/A
app pub date -
Jun 22, 1984
filing date -
Jun 22, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A polymeric lens material is cast within a mold body which includes a generally conical external surface portion, an annular wall portion defining a pocket in which the material is cast, and a base wall disposed of between the conical external surface portion and the annular wall portion. The base wall defines an optical surface at the bottom of the pocket for forming a surface of a contact lens. The conical external surface portion of the mold body is dimensioned to complement an internal conical surface portion of a collet for accurately positioning and aligning the mold within the collet for a machining operation.
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