Method for forming optical elements having an optical coating by replication of a mold
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United States of America Patent
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Nov 3, 1992
Issued Date -
N/A
app pub date -
Aug 28, 1991
filing date -
Dec 5, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method for forming an optical element having an optical coating thereon by replication having the steps of preparing first and second molds having polished surfaces which are to be replicated, depositing a soluble inorganic salt to form a release layer, depositing an optical coating in reverse order upon the release layer, supplying liquid material between the molds and in contact with the optical coating, causing the liquid material to solidify and form a bond with the optical coating, separating the molds from the solidified material with the optical coating adherent to the solidified material with separation occurring between the mold and the optical coating in the parting layer and removing any remaining portions of the parting layer from the optical coating.
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