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BK Square Windows
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| BK Round Windows
Lenses: Material:BK7 grade A optical glass Diameter(Dia):+-0.1mm Center Thickness(TC):+-0.2mm Surface Quality:60-40 scratch-dig Surface Flatness:1/10 wave @632.8 or 1/10 wave @632.8 each inch Paralleelism:1 arcmin Clear Aperture:90% of diameter All dimentions are in millimeters. Round Lenses >>>>>> |
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| Square Lenses Page | Round Lenses Page | ||
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