21 July 2010 Are opthalmic hydrophobic coatings useful for astronomical optics?
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Astronomical optics are often exposed to moisture and dust in observatory environments, which frequently compromises their high-performance coatings. Suitable protective layers to resist dust and moisture accumulation would be extremely advantageous, but have received scant attention thus far. Hydrophobic and scratch-resistant coatings, developed primarily for opthalmic use, exhibit several attractive properties for astronomical optics. We examine the properties of one such coating and its applicability to astronomical mirrors and lenses. This includes efficiency of dust removal, abrasion resistance, moisture resistance, ease of stripping, and transmission across a wide wavelength range.
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Christian Schwab, Christian Schwab, Andrew C. Phillips, Andrew C. Phillips, "Are opthalmic hydrophobic coatings useful for astronomical optics?", Proc. SPIE 7739, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation, 77391W (21 July 2010); doi: 10.1117/12.856511; https://doi.org/10.1117/12.856511

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