Apparatus for the manufacture of contact lenses using microwave energy
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United States of America Patent
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Feb 4, 1986
Issued Date -
N/A
app pub date -
Oct 3, 1984
filing date -
Mar 17, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention concerns a method and an apparatus for manufacturing a contact lens, through molding within water-tight molds. The polymerization of lenses is insured by arranging a number of molds within one or several sealed metallic chambers (9) constituting a resonant cavity of a unique mode for an ultra high frequency wave; these molds are positioned in an area of the cavity where the electromagnetic field approximately of ultra high frequency waves is homogeneous, and are distributed so that the amounts of basic composition to be polymerized act as a load fitted to the inside of said cavity.
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