SHANGHAI FAMOUS TRADE CO.,LTD
| Payment Terms | T/T |
| Delivery Time | 2-4 weeks |
| Material | 99.999％ Al2O3 |
| Size | Customized |
| Vision Light Transmissivity | 90％ |
| Suraface | Polished |
| Advantagement | High Hardness9.0，wear Resistance, |
| Method | KY Or Cz |
| Industry | Semiconductor Wafer, Optical Glass Wafer |
| Brand Name | ZMSH |
| Model Number | Sapphire Circular Window |
| Certification | rohs |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T | Delivery Time | 2-4 weeks |
| Material | 99.999％ Al2O3 | Size | Customized |
| Vision Light Transmissivity | 90％ | Suraface | Polished |
| Advantagement | High Hardness9.0，wear Resistance, | Method | KY Or Cz |
| Industry | Semiconductor Wafer, Optical Glass Wafer | Brand Name | ZMSH |
| Model Number | Sapphire Circular Window | Certification | rohs |
| Place of Origin | CHINA | ||
| High Light | Circular Window Sapphire Glass ，Laser Window Sapphire Glass ，90% Transmittance Sapphire Glass | ||
Product Description
Sapphire Circular Window Sapphire Glass 90% Transmittance For Laser Window
ZMSH manufacture precision sapphire circular windows (5-300mm diameter, 0.3-20mm thick) with >85% transmittance (250-5500nm) and Mohs 9 hardness for demanding optical applications. Our comprehensive capabilities include custom AR coatings (R<0.5% per surface), precision edge treatments (beveled/safety edges), and metrology-grade surface finishes (up to λ/10 flatness). Utilizing advanced CNC machining and laser processing technologies, we achieve tight tolerances of ±0.01mm while maintaining excellent thermal stability (CTE 5.3×10⁻⁶/℃) and chemical resistance. We serve laser systems, semiconductor equipment and aerospace instrumentation markets with reliable 2-4 week lead times for custom solutions. Additional services include multi-aperture drilling, laser marking, and cleanroom packaging upon request.
Key Characteristics
1. Superior Optical Performance: The sapphire circular window achieves over 85% transmittance from 250nm to 5500nm wavelengths, with particularly outstanding performance in the 3-5μm MIR range, making it suitable for infrared thermal imaging and laser transmission applications.
2. Exceptional Mechanical Strength: With a Mohs hardness of 9, its scratch resistance is 10× greater than standard optical glass, capable of withstanding high-velocity particle impact and repeated friction.
3. Extreme Environmental Resistance: Featuring a melting point of 2040°C, it maintains stable operation at 800°C continuously (short-term tolerance up to 1800°C) while demonstrating excellent acid/alkali resistance (stable in pH 1-13 environments), suitable for chemical and marine applications.
4. Stable Thermodynamic Properties: Its low thermal expansion coefficient (5.3×10⁻⁶/°C) matches various metals and ceramics, preserving optical surface accuracy (<λ/4 @632.8nm) under rapid thermal cycling.
Technical Parameters
| Chemical Formula | Al2O3 |
| Crystal Structure | Hexagonal |
| Lattice Constants | a=4.758, c=12.991 |
| Density | 3.98 g/cm3 |
| Melting Point | 2040℃ |
| Mohs Hardness | 9 |
| Thermal Expansion | 8.4 x 10-6/℃ |
| Thermal Conductivity | 52 W/m/K |
| Specific Heat | 0.42 J/g/K |
| Laser Action | 4-Level Vibronic |
| Fluorescence Lifetime | 3.2μs at 300K |
| Tuning Range | 660nm ~ 1050nm |
| Absorption Range | 400nm ~ 600nm |
| Emission Peak | 795 nm |
| Absorption Peak | 488 nm |
| Refractive Index | 1.76 at 800nm |
| Peak Cross Section | 3.4 x 10-19cm2 |
Primary Applications
1. Laser Optical Systems: Serving as output windows and protective lenses for CO₂ and fiber lasers, sapphire circular windows withstand high-power laser irradiation (>5kW/cm²) while minimizing thermal lensing effects.
2. High-Temperature Industrial Observation: Used as viewports in steelmaking and glass-forming equipment, maintaining optical clarity above 1000°C without the fogging or deformation issues of conventional glass.
3. Aerospace and Defense: Employed as protective windows for aircraft electro-optical sensors and missile seekers, combining lightweight properties (density 3.98g/cm³) with impact resistance against supersonic aerodynamic heating.
4. Scientific Instruments and Medical Devices: Providing biocompatible surfaces and stable optical channels for synchrotron radiation equipment and endoscopes.
FAQ
1. Q: What are the advantages of sapphire windows over glass?
A: Sapphire offers 10x higher scratch resistance (Mohs 9), wider spectral transmission (UV to IR), and superior thermal/chemical durability.
2. Q: Can sapphire windows be customized for laser applications?
A: Yes, we provide laser-grade sapphire with AR coatings (<0.5% reflectivity) and λ/10 surface finishes for high-power systems.
TAG: #Sapphire Circular Window, #Optical Glass, #Wear-Resistant, #High Transmittance, #Customized, #90% Transmittance, #DSP, #Sapphire Glass, #Laser Window
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company
Year Established:
2013
Total Annual:
1000000-1500000
Ecer Certification：
Verified Supplier
SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014. We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components wi... SHANGHAI FAMOUS TRADE CO.,LTD. locates in the city of Shanghai, Which is the best city of China, and our factory is founded in Wuxi city in 2014. We specialize in processing a varity of materials into wafers, substrates and custiomized optical glass parts.components wi...
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