Scratch-resistant optical multi-layer system applied to a crystalline substrate
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United States of America Patent
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Mar 13, 2012
Grant Date -
Aug 23, 2007
app pub date -
Mar 16, 2005
filing date -
Mar 17, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for producing a crystalline substrate with an optical multi-layer system thereon and the crystalline substrate obtainable thereby. The process comprises the successive application of at least two free-flowing compositions which comprise nanoscale inorganic solid particles comprising at least one of a polymerizable and a polycondensable organic group to a surface of the crystalline substrate and the polymerization and/or polycondensation of the organic groups of the solid particles to form organically crosslinked layers on the substrate and a single-stage thermal consolidation of these layers with a burnout of organic constituents thereof. The at least two compositions give rise to layers with different refractive indices.
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- 6 Citation Count
- G02B Class
- 4.33 % this patent is cited more than
- 13 Age
