2022 China New Design Samarium-Doped Filters - Sapphire Optical Windows – LZY
2022 China New Design Samarium-Doped Filters - 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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Our corporation puts emphasis about the administration, the introduction of talented staff, plus the construction of team building, attempting hard to improve the quality and liability consciousness of team members. Our organization successfully attained IS9001 Certification and European CE Certification of 2022 China New Design Samarium-Doped Filters - Sapphire Optical Windows – LZY , The product will supply to all over the world, such as: Houston, Belgium, Peru, We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information if you have any questions. We are glad to work for every client.
By Abigail from Pakistan - 2017.01.28 19:59
This is the first business after our company establish, products and services are very satisfying, we have a good start, we hope to cooperate continuous in the future!
By Caroline from Montpellier - 2017.09.28 18:29