Reasonable price Fused Silica Substrates - Sapphire Optical Windows – LZY
Reasonable price Fused Silica Substrates - Sapphire Optical Windows – LZY Detail:
Uncoated sapphire has excellent surface hardness, and the range of transmittance extends from ultraviolet to mid-infrared wavelength region. Sapphire can only be scratched by a few substances other than it. The uncoated substrate is chemically inert and insoluble in water, common acids or alkalis at temperatures up to about 1000°C. Our sapphire window is a z-axis section, so the c-axis of the crystal is parallel to the optical axis, eliminating the birefringence effect of transmitted light.
Specification
Dimension Tolerance: 0.0/-0.1mm
Thickness Tolerance: ±0.1mm
Clear Aperture: ≥90%
Surface Quality: 40/20(Dimension≤50.8mm) 60/40(Dimension>50.8mm)
Flatness: λ/4@633nm
Parallelism: ≤1′
Chamfer: 0.2×45°
Sapphire Protective Windows
Shape Forming Method
CNC or laser
Product Characteristics
Material Properties
Sapphire is a single crystal aluminum oxide (Al2O3). It is one of the hardest materials. Sapphire has good transmission characteristics over the visible, and near IR spectrum. It exhibits high mechanical strength, chemical resistance, thermal conductivity and thermal stability. It is often used as window materials in specific field such as space technology where scratch or high temperature resistance is required.
Molecular Formula | Al2O3 |
Density | 3.95-4.1 g/cm3 |
Crystal Structure | Hexagonal Lattice |
Crystal Structure | a =4.758Å , c =12.991Å |
Number of molecules in unit cell | 2 |
Mohs Hardness | 9 |
Melting point | 2050 ℃ |
Boiling Point | 3500 ℃ |
Thermal Expansion | 5.8×10-6 /K |
Specific Heat | 0.418 W.s/g/k |
Thermal Conductivity | 25.12 W/m/k (@ 100℃) |
Refractive Index | no =1.768 ne =1.760 |
dn/dt | 13×10 -6 /K(@633nm) |
Transmittance | T≈80% (0.3~5μm) |
Dielectric Constant | 11.5(∥c), 9.3(⊥c) |
Transmission Curve of Sapphire Optical Window
Product detail pictures:
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We depend on sturdy technical force and continually create sophisticated technologies to meet the demand of Reasonable price Fused Silica Substrates - Sapphire Optical Windows – LZY , The product will supply to all over the world, such as: USA, Porto, Afghanistan, Our company's main items are widely used all over the world; 80% of our products and solutions exported to the United States, Japan, Europe and other markets. All stuff sincerely welcome guests come to visit our factory.
By Michaelia from California - 2018.10.09 19:07
This company has the idea of "better quality, lower processing costs, prices are more reasonable", so they have competitive product quality and price, that's the main reason we chose to cooperate.
By Kama from Thailand - 2017.11.29 11:09