ITEM COMPRISING AN ORGANIC-INORGANIC LAYER WITH A LOW REFRACTIVE INDEX
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United States of America Patent
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Dec 27, 2018
app pub date -
Dec 16, 2016
filing date -
Dec 16, 2016
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Abstract
The invention relates to an article comprising a substrate having at least one main surface coated with a layer L of a material M obtained by vacuum deposition, by co-evaporation, of at least one metallic compound A chosen from alkaline-earth metal fluorides and of at least one organic compound B, the material M having a refractive index at the wavelength of 632.8 nm ranging from 1.38 to 1.47. According to the invention:
- the organic compound B comprises an organosilicon compound or a mixture of organosilicon compounds; andthe deposition of the compound B, in gaseous form, is carried out in the presence of an ion bombardment.
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