POLYMERIC BASED LENS COMPRISING HARDENING LAYER, AN INTERFERENTIAL MULTI-LAYER AND A HARD LAYER SANDWICHED BETWEEN BOTH, AND CORRESPONDING MANUFACTURING METHOD
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United States of America Patent
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Issued Date -
Jan 20, 2011
app pub date -
Dec 15, 2008
filing date -
Feb 14, 2008
priority date (Note) -
Abandoned
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Abstract
Polymeric based lens having a hardening layer, an interferential multi-layer and a hard layer sandwiched between both, and corresponding manufacturing method. The hardening layer is over 500 nm thick. The interferential multi-layer is made up of a plurality of sub layers each of which is less than 250 nm thick. The hard layer is over 300 nm thick. The lens can also have a flexible layer, obtained by polymerizing organometallic monomers by means of PECVD and/or sputtering, arranged between the hardening layer and the hard layer. The manufacturing method includes a high vacuum activation phase of the hardening layer surface, before the hard layer formation stage.
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