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Sapphire Al2o3 Window - China
price: contact company for price
Sapphire is a single crystal aluminum oxide (Al2O3).
Its Mohs hardness is 9, it is one of the hardest materials.
Sapphire has good mechanical strength, and it is also transparent from visible to IR spectrum.
So, it is always used as window material where scratch resistance is required.
Lattice Constant: a =4.75 A; c =12.97ATransparent
Range: 180nm ~ 4500nm
Density: 3.98g/cm3Mohs Hardness: 9
Melting Point: 2030℃Thermal
Conductivity: 0.04W/m/K
Expansion Coefficient: 8.4x10-6/K
Refractive Index: 1.755@1um
Specifications
Material Optical Sapphire
Dimension Tolerance +0.0/-0.1mm
Thickness Tolerance ±0.2mm
Clear Aperture >90%
Parallelism <1arc minutes
Surface Quality 80/50 or better
Flatness <λ /2@633nm or better
Chamfer Protected <0.5mmx45deg
Coating None, per your request
Company Contact:
- Posted By: Changchun Deln Optics Technology Co., Ltd.
- Phone: 431-81973695
- Address: #59, YuanDa St.,, Changchun , JiLin , China
- Email:
- Website: http://www.delnoptic.com
Published date: June 9, 2017 - Modified date: June 9, 2017
- Business Description: Manufacturer lenses, mirrors, optical filters, beamsplitters, prisms, waveplates, infrared parts, crystals, reticles, microlens array, phase plate and diffraction optics.
China.
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