POLYMERIC BASED LENS COMPRISING A HARDENING LAYER, AN ABSORBENT LAYER AND INTERFERENTIAL MULTI-LAYER AND CORRESPONDING MANUFACTURING METHOD
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United States of America Patent
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Issued Date -
Mar 22, 2012
app pub date -
Mar 11, 2010
filing date -
Mar 20, 2009
priority date (Note) -
Abandoned
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Abstract
Polymer based lens including a hardening layer, an interferential multi-layer and an absorbent layer therebetween. The absorbent layer is made from a metal, metal oxide or metal nitride, suitable for producing a transparent layer via deposition by sputtering, and includes cations of a coloring metal from the group made up of transition elements which, in oxided form, have a cation that absorbs electromagnetic radiation in the visible spectrum. The cations of the coloring metal are in a proportion between 10% and 70% atomic percentage of the cations with respect to the cation of the predominant metal in said absorbent layer.
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