WATER REPELLENT GLASS MEMBER AND MANUFACTURING METHOD FOR SAME, LENS MEMBER, COVER MEMBER, AND WINDOW PANEL MEMBER
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United States of America Patent
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Oct 24, 2024
app pub date -
Aug 19, 2022
filing date -
Aug 19, 2022
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Abstract
Provided is a water-repellent glass member having excellent water repellency even without forming a water-repellent film on its surface. A water-repellent glass member 1 has a surface 1a with unevenness, wherein when a cutoff value of a high-pass filter λc in a 5 μm×5 μm area of the surface 1a with unevenness is 2.5 μm, a mean width RSm1 of roughness profile elements is not less than 70 nm and not more than 800 nm, and when a cutoff value of a low-pass filter λs in a 140 μm×105 μm area of the surface 1a with unevenness is 0.80 μm, a mean width RSm2 of roughness profile elements is not less than 3.0 μm and not more than 100.0 μm.
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