High-Strength Optical Protection for Extreme Environments
Sapphire domes are precision-engineered optical components fabricated from single-crystal aluminum oxide (Al₂O₃). Renowned for their exceptional hardness, broad spectral transmission, and superior thermal stability, sapphire domes provide reliable protection for sensitive optical systems operating in the most demanding environments.
Designed in hemispherical or custom geometries, these domes enable a wide field of view while preserving outstanding optical clarity and structural integrity.
Why Choose Sapphire Domes?
Ultra-High Hardness (Mohs 9)
Second only to diamond, sapphire offers exceptional resistance to scratches and wear, ensuring long service life in abrasive conditions.
Broad Optical Transmission (UV–IR)
Efficient transmission across a wide wavelength range from 0.2 μm to 5.5 μm, suitable for diverse optical applications.
Extreme Temperature Resistance
Maintains stable physical and optical properties at temperatures up to 1600°C.
Outstanding Mechanical Strength
Highly resistant to impact, pressure, and high-speed airflow, making it ideal for dynamic environments.
Excellent Chemical Stability
Performs reliably in corrosive and chemically aggressive conditions.
Key Features
- Hemispherical structure for wide-angle optical coverage
- Optical-grade polishing for high-precision imaging performance
- Strong sealing capability for vacuum and high-pressure systems
- Fully customizable dimensions, curvature, thickness, and coatings
Applications
Sapphire domes are widely deployed in high-performance systems where durability and optical precision are critical:
- Infrared and thermal imaging systems
- Missile guidance and defense systems
- Aerospace optical sensors
- Underwater cameras and deep-sea exploration equipment
- Laser systems and high-temperature observation windows
Specifications
| Parameter | Value |
|---|---|
| Material | Single-Crystal Sapphire (Al₂O₃) |
| Diameter | 5 mm – 200 mm |
| Thickness | 0.5 mm – 30 mm |
| Surface Quality | 60/40, 40/20 (Optional) |
| Surface Accuracy | λ/4 or better |
| Transmission Range | 0.2 – 5.5 μm |
| Shape | Hemisphere / Custom Dome |
| Finish | Polished / Ground |
Custom Capabilities
We offer full customization to meet your specific application requirements:
- Custom diameters and radii
- Precision edge profiling
- Anti-reflective (AR) coatings (single-layer or broadband)
- Infrared (IR) coatings and protective layers
- Tight-tolerance precision machining
Competitive Advantages
- Advanced sapphire fabrication and polishing technology
- Consistent quality for high-end optical applications
- Flexible minimum order quantities (MOQ) and rapid prototyping
- Dedicated engineering support for custom designs
FAQ
Q1: What advantages do sapphire domes offer over glass domes?
A: Sapphire provides significantly higher hardness, superior thermal resistance, and a broader transmission range, making it ideal for extreme and high-performance environments.
Q2: Can dome dimensions be customized?
A: Yes, all key parameters—including diameter, thickness, curvature, and coatings—can be tailored to your requirements.
Q3: Is sapphire suitable for infrared applications?
A: Yes, sapphire performs well in both near-infrared and mid-infrared ranges.
Q4: Do you offer coating services?
A: Yes, we provide a full range of coatings, including AR coatings, IR coatings, and protective coatings for enhanced performance.
Reviews
There are no reviews yet.