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 White Float Windows - Diameters - AR Coated
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AR white float windows are cost effective, medium performance windows that are cut from relatively flat and parallel large, pre-coated sheets. Our stocks supply thicknesses from 2.0mm to 8.0mm and as no polishing is required they are extremely economical.
Anti-reflective windows are ideal where small residual reflections are present. We offer AR coating on one face or on both faces of the window where the 1mm thick AR coated versions are vacuum coated using a BBAR coating <0.5 % over 450-900nm.
The stock listed below are AR coated circular white float windows of various diameters. AR Coated Glass available sizes: Sheet size: Up to 1770x1229mmAvailable thickness: 2,3,4,6,8mmCoating options: Coated single side or both sides Specifications: | Material: | White Float Glass (3mm / 6mm thk) | | Diameter: | +0, -0.2mm | | Length, width: | ±0.25mm | | Thickness: | nominal | | Flatness: | 1/2 λ/10mm dia (1.1mm thk) 1-2 λ/25mm dia (3mm/6mm) | | Float type | 0.5λ over 10mm dia (1.1mm thk) | | (typical) | 1-2λ over 25mm dia (3mm/6mm thk) | | Polished grade | λ/2 or over 90% of aperture dimensions | | Surface Quality: | <60-40 scratch/dig | | Parallelism: | <1’ (polished type) | | Coating: | Windows with suffix AV8 or AV9 are coated one face with the following Anti-reflective coatings On 1mm thk substrates with Multilayer extended Broadband 450-900nm (AV1) On 3mm thk substrates with single layer MgF² (AV5) | | | | | | | | |
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