Sapphire optical window components are premium single-crystal parts engineered for applications demanding exceptional hardness, optical clarity, thermal resistance, chemical stability, and mechanical strength. Manufactured from 99.999% pure Al₂O₃, these components offer high light transmittance, excellent scratch and wear resistance, and long-term durability in harsh environments. Optional surface treatments, such as gold plating or anti-reflective coatings, enhance surface protection, improve optical performance, and expand functionality.
These sapphire components are fully customizable in size, shape, thickness, surface finish, and coatings to meet specific requirements. They are widely used in high-end optical systems, semiconductor fabrication, MEMS devices, aerospace and defense systems, medical instruments, industrial machinery, and consumer electronics. Sapphire optical windows have become indispensable in applications that require reliable performance under extreme conditions, high precision, and long-term stability.
Caratteristiche principali
Exceptional Hardness and Wear Resistance – With a Mohs hardness of 9H, sapphire is second only to diamond, providing outstanding durability and scratch resistance for long-term use in industrial, aerospace, and scientific applications.- Superior Optical Performance – Sapphire offers high transmittance (85–88%) across ultraviolet, visible, and infrared ranges (0.17–5.5 μm), with low dispersion and stable refractive indices (n₀=1.768, nₑ=1.76). This ensures precise optical transmission and minimal signal distortion in high-precision optical instruments.
- Resistenza chimica – Resistant to most acids, bases, and solvents, sapphire maintains performance in highly corrosive or reactive environments.
- Stabilità termica – High thermal conductivity (25.12 W/m·K @100°C) and a melting point of 2040°C allow sapphire windows to operate reliably under high-temperature conditions without warping or degradation.
- Resistenza meccanica – High compressive strength (2.0 GPa) and bending resistance ensure reliable performance under mechanical stress, vibration, and impact.
- Electrical Insulation – Sapphire is an excellent dielectric, making it suitable for high-voltage and high-frequency electronic devices.
- Full Customization – Supports tailored size, shape, thickness, surface finish, and coating options to meet the specific requirements of demanding industrial, optical, and scientific applications.
Specifiche tecniche
| Parametro | Specifiche |
|---|---|
| Materiale | Single crystal Al₂O₃ (99.999%) |
| Struttura cristallina | Esagonale |
| Hardness (Mohs) | 9 |
| Resistenza alla compressione | 2.0 GPa |
| Density (20°C) | 3,98 g/cm³ |
| Punto di fusione | 2040°C |
| Boiling Point | 2980°C |
| Coefficiente di espansione termica | α=5.8×10⁻⁶ /K |
| Calore specifico | 0.418 W·s/g·K |
| Conduttività termica | 25.12 W/m·K (@100°C) |
| Optical Transmission Range | 0.17–5.5 μm |
| Visible Light Transmittance | 85–88% |
| Indice di rifrazione | n₀=1.768, nₑ=1.76 |
| Permittivity | 11.5 (//c), 9.3 (⊥c) |
Applicazioni
Optical and Sensor Protection – Sapphire windows protect optical instruments, laser systems, and sensors from dust, moisture, scratches, and mechanical impact while maintaining high optical clarity.- Consumer Electronics – Used as camera covers and screen protection for smartphones, smartwatches, and wearable devices, offering exceptional durability and scratch resistance.
- Aerospaziale e difesa – Essential for satellite optical systems, missile fairings, aerospace sensors, and other high-performance equipment requiring hardness, radiation resistance, and thermal stability.
- Industrial Machinery – Ideal for high-temperature viewing windows, laser cutting heads, and protective lenses in harsh manufacturing environments.
- Medical Devices – Applied in endoscopes, laser surgical instruments, and optical inspection systems, providing high light transmittance, chemical stability, and biocompatibility.
- Semiconductor Fabrication – Protects mask plates, wafer processing windows, and lithography tools in semiconductor manufacturing, ensuring high precision and reliability.
- Scientific Research – Suitable for high-energy laser experiments, spectral analysis, and vacuum observation windows where stability and precision are critical.
- Automotive and Transportation – Used in LiDAR sensors and autonomous vehicle systems, providing durable and high-transparency protective windows.
Advantages
- Long-term durability under extreme mechanical, thermal, and chemical conditions.
- High precision optical transmission for demanding optical systems.
- Customizable design to suit specific application requirements.
- Biocompatibility for medical and laboratory applications.
- Gold plating or coating options for enhanced surface protection.
FAQ
Q: What is a sapphire optical window?
A: Sapphire optical windows are single-crystal components with high hardness, optical clarity, and durability. They protect sensors, laser systems, and electronic devices in harsh environments.
Q: What are the optical properties of sapphire glass?
A: Sapphire exhibits high transmittance (85–88%), low dispersion, and stable refractive indices from ultraviolet to near-infrared wavelengths, ensuring precision optical performance for advanced applications.
Recensioni
Ancora non ci sono recensioni.