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97% for 450 nm 2 m >95% for 2 20 m Substrate UV Fused Silica Surface Flatness (Peak to Valley) 4 @ 633 nm Surface Quality 10 5 Scratch Dig Parallelism <3 arcmin Clear Aperture 90%, Elliptical Damage" name="description"/> 97% for 450 nm 2 m >95% for 2 20 m Substrate UV Fused Silica Surface Flatness (Peak to Valley) 4 @ 633 nm Surface Quality 10 5 Scratch Dig Parallelism <3 arcmin Clear Aperture 90%, Elliptical Damage" property="og:description"/> 97% for 450 nm 2 m >95% for 2 20 m Substrate UV Fused Silica Surface Flatness (Peak to Valley) 4 @ 633 nm Surface Quality 10 5 Scratch Dig Parallelism <3 arcmin Clear Aperture 90%, Elliptical Damage" name="twitter:description"/>
US$ 128.57
US$ 46.51
US$ 17.79
US$ 29.05
US$ 60.47
US$ 13.34
US$ 18.94