Big discounting Quartz Flange With Holes - Sapphire Optical Windows – LZY
Big discounting Quartz Flange With Holes - 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:
Related Product Guide:
"Quality initially, Honesty as base, Sincere company and mutual profit" is our idea, in order to create repeatedly and pursue the excellence for Big discounting Quartz Flange With Holes - Sapphire Optical Windows – LZY , The product will supply to all over the world, such as: Suriname, Lesotho, Barcelona, We aim to build a famous brand which can influence a certain group of people and light up the whole world. We want our staff to realize self-reliance, then achieve financial freedom, lastly obtain time and spiritual freedom. We do not focus on how much fortune we can make, instead we aim to obtain high reputation and be recognized for our products. As a result, our happiness comes from our clients satisfaction rather than how much money we earn. Ours team will do best for you always.
By Donna from Hyderabad - 2018.02.08 16:45
Superb technology, perfect after-sales service and efficient work efficiency, we think this is our best choice.
By Claire from Mauritius - 2017.11.29 11:09
