| After-sales Service: | 12 Hours Serving |
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| Warranty: | 1 Year |
| Usage: | Optical |
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Precision optical windows for lasers, high quality sapphire optical windows
1. Why choose the sapphire?
Thinner and Stronger than Standard Glass Windows
Transmits Wavelengths Ranging From UV to Mid-Infrared
Features Extreme Surface Hardness and Chemical Resistance
2,What is sapphire?
Synthetic Sapphire is a single crystal form of corundum, Al2O3, also known as alpha-alumina, and single crystal Al2O3,have 9.0 hardness.
Sapphire is aluminium oxide in the purest form with no porosity or grain boundaries, making it theoretically dense.
The combination of favourable chemical, electrical, mechanical,optical, surface, thermal, and durability properties make sapphire a preferred material for high performance system and component designs. For various semiconductor applications,
sapphire is the best choice in comparison with other synthetic single-crystals.
| Product name | industrial sapphire wafer |
| sapphire optical lens chemical formula | AL2O3 |
| Crystal structure | Hexagonal |
| Hardness Mohs | 9H |
| Compressvise strength | Gpa 2.0 |
| Density(20ºC) | 3.98g/cm |
| Fusion point | 2040ºC |
| Boiling point | 2980ºC |
| Coefficient of Thermal Expansion | α=5.8×10 -6 /K |
| Specific heat | 0.418W.s/g/k |
| Thermal conduction | 25.12W/m/k(@100°C) |
| Optical transmission range | 0.17-5.5μm |
| Transmission(0.3~5um) | 85-88% |
| Refractive index | no=1.768nd |
| ne=1.76nd | |
| dn/dt | 13×10-6/K(@633nm) |
| Permittivity | 11.5(//c), 9.3(⊥c) |
Specifications:
| Diameter (Φmm) | 8.0, 10.0, 12.7, 15.0, 20.0, 25.4, 30.0 |
| Thickness (mm) | 0.5, 1.0, 2.0 |
| Diameter Tolerance (mm) | +0.0/-0.2 (General), +0.0/-0.1 (High Precision) |
| Thickness Tolerance (mm) | ±0.2 (General), ±0.05 (High Precision) |
| Clear Aperture | >75% (Small Size), >90% (Large Size) |
| Parallelism | 3 min. (General), 10 sec. (High Precision) |
| Surface Quality: Scratch/Dig | 80/50 (General), 40/20 (High Precision) |
| Flatness (per 25mm@633nm) | λ(General), λ/4 (High Precision) |
| Bevel (face width x 450) | <0.25mm |
| Coating | Upon customer's request |
4. Materials characteristic
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Refractive index (nd) |
1.768 |
Coefficient of dispersion (Vd) |
72.2 |
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Density (g/cm3) |
3.97 |
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TCE(μm/mºC) |
5.3 |
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Soften Temperature(ºC) |
2000 |
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Knoop hardness(kg/mm2) |
2200 |
applications arethese products for ?
LED OPtical element applications mobile camera cover glass
mechanical parts watch and other consumer electronics applications
Fingerprint recognition allication SOS substrates Artificial jewelry
Production equipment:
FAQ:
| Q: What's the way of shipping and cost? | A: (1) We accept DHL, Fedex, TNT, UPS, EMS etc. |
| (2) If you have your own express account, it's great.If not,we could help you ship them. |
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| Q: How to pay? | A: T/T, Paypal, etc |
| Q: What's your MOQ? | A: (1) For inventory, the MOQ is 5pcs. |
| (2) For customized products, the MOQ is 10pcs-25pcs. | |
| Q: What's the delivery time? | A: (1) For the standard products |
| For inventory: the delivery is 5 workdays after you place the order. |
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| For customized products: the delivery is 2 or 3 weeks after you place the order. |
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| (2) For the special-shaped products, the delivery is 4 or 6 workweeks after you place the order. |
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| Q: Do you have standard products? | A: Our standard products in stock. |
| Q: Can I customize the products based on my need? | A: Yes, we can customize the material, specifications and optical coating for your optical components based on your needs. |
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