Curved surface films and methods of manufacturing the same
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United States of America Patent
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May 7, 2024
Grant Date -
Jul 14, 2022
app pub date -
Apr 1, 2022
filing date -
May 11, 2018
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Abstract
An optical element including an optically transparent lens which defines a curved surface having a steepness given by an R/# of from about 0.5 to about 1.0. A film is positioned on the curved surface. The film includes an index layer. A composite layer is positioned on the curved surface having a refractive index greater than the index layer. The composite layer includes HfO2 and Al2O3. The composite layer has a mole fraction X of HfO2, wherein X is from about 0.05 to about 0.95 and a mole fraction of Al2O3 in the composite layer is 1−X.
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