Optical lens with scratch-resistant anti-reflective layer
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United States of America Patent
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Aug 1, 2017
Grant Date -
Jun 4, 2015
app pub date -
Feb 9, 2015
filing date -
Feb 9, 2015
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Abstract
The present invention relates to an optical lens having a lens element produced of plastic, more particularly of plastic which is transparent in a visible spectral range, and having a coating comprising a plurality of layers, the plurality of layers comprising at least one high-refractive-index layer. Furthermore, a hardcoat layer is formed adjacent to the lens element, and a superhydrophobic layer concludes the coating in opposition to the lens element. The at least one high-refractive-index layer has a thickness of less than 40 nm, and the coating overall has a thickness of more than about 380 nm.
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