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SapphirePrecision optical compoments
Sapphire (Al2O3)
Sapphire lenses are suitable for high power, high-pressure applications, and vacuum or corrosive atmospheres. Sapphire is a single crystal form of alumina, Al2O3. The material is extremely hard and resistant to attack by strong acids. It has high compressive strength, a high melting point, and excellent thermal conductivity. Transmission range is from 150 nm to 5 µm.Synthetic sapphire is an anisotropic crystalline material with many unique optical and physical properties which make it a material of choice for many optical applications:Specifications:
Material:Sapphire
Diameter Tolerance: +0.00, -0.15mm(Standard), +0.00,-0.02mm(Precision)
Flatness: lambda@632.8nm
Surface Quality: 60-40 S/D
Paraxial Focus Length: +/-2%
Centration: <5arc minutes
Clear Aperture: >85% of diameter
Bevel: 0.25x45deg
