Product Name: Sapphire Crystal Watch Glass 2" 4" Blue Sapphire Optical for Glass Lens Window Customized: Customized Lenses Color: Clear Material: Optical Glass Shape: Single-lens Transmittance: >95% Type: Flat Lens Usage: Optical Size: Customized Thickness: Customized Growth Method: Ky Trademark: FineWin Transport Package: Box Origin: Jiaozuo City Henan Province Product Description sapphire crystal watch glass 2" 4" blue sapphire optical for glass lens windowSapphire is a hard crystal,it widely been used for watch and mobilephone, Beauty equipment ,lasers,LED, and so on.1. Why choose the sapphire?Thinner and Stronger than Standard Glass WindowsTransmits Wavelengths Ranging From UV to Mid-InfraredFeatures Extreme Surface Hardness and Chemical Resistance2. What is sapphire windowsSapphire Windows are manufactured from single crystal sapphire, making them ideal for demanding applications (such as laser systems) because of their extreme surface hardness, high thermal conductivity, high dielectric constant and resistance to common chemical acids and alkalis. Sapphire is the second hardest crystal next to diamonds and, because of their structural strength, sapphire windows can be made much thinner than other common dielectric windows with improved transmittance. Chemically, sapphire is single crystal aluminum oxide (Al2O3), and is useful in a transmission range from 0.2 - 5.5µm.3.Product availableSapphire Washers, Sapphire Windows, Sapphire Bearings, Sapphire Rods, Sapphire Tubes, Rubysapphire wafer, dome sapphire, Sapphire insulation Film, Sapphire ball lens, Sapphire/ruby ball a: Dimesion size : 0.2-300mm or customization , thickness >0.1mm b: Gemstone Type:Synthetic (lab created) c: AR coating or as your request d: Product shape : round , rectangle or custom shape e: Chemical Composition : Al2O34. Materials characteristicRefractive index (nd)1.768Coefficient of dispersion (Vd)72.2Density (g/cm3)3.97TCE(μm/mºC)5.3Soften Temperature(ºC)2000Knoop hardness(kg/mm2)22005. Sapphire Windows and Sapphire lenses General SpecificationsDiameter0.2-300mm +/-0.1mm or +/-0.02mm or customizationThickness0.10-100mm± 0.1mm or +/-0.02mmSurface quality (scratch & dig)60/40, 40/20 or betterSurface accuracyλ/10, λ/2, λClear Aperture>85%, >90%Parallelism+/-3' ,+/-30''Bevel0.1~0.3mm×45 degreecoatingAR, BBAR or upon customer request( UV, VIS, IR)6.ProductsFAQ:Q: What's the way of shipping and cost?A:(1) We accept DHL, Fedex, TNT, UPS, EMS etc. (2) If you have your own express account, it's great.If not,we could help you ship them.Q: How to pay?A: T/T, Paypal, etcQ: What's your MOQ?A: (1) For inventory, the MOQ is 5pcs. (2) For customized products, the MOQ is 10pcs-25pcs.Q: What's the delivery time?A: (1) For the standard products For inventory: the delivery is 5workdays after you place the order. For customized products: the delivery is 2or 3weeks after you place the order. (2) For the special-shaped products, the delivery is 4or 6workweeks after you place the order.Q: Do you have standard products?A: Our standard products in stock.Q: Can Icustomize the products based on my need?A: Yes, we can customize the material, specifications and optical coating for your optical components based on your needs.
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