Contact lens mold
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United States of America Patent
Stats
-
Aug 18, 1981
Grant Date -
N/A
app pub date -
Jun 23, 1980
filing date -
Jun 23, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A two piece contact lens mold having a pair of blunt, continuous mating surfaces extending around the periphery of the mold cavity is disclosed. Location of the mold parting line tangent to the lens edge substantially eliminates registration problems when a relief groove is provided at the edge of the female member. Parameters for mold materials and important dimensions are also disclosed. The mold can produce finished contact lenses which do not require further machining.
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