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Silicon spherical lenses are high-performance optical components designed for demanding applications in infrared (IR) and ultraviolet (UV) systems. Crafted from ultra-pure monocrystalline silicon, these lenses exhibit exceptional thermal stability, low dispersion, and high transmission efficiency in the 1.2–7 μm wavelength range, making them ideal for thermal imaging, laser focusing, and aerospace instrumentation.
Custom Specifications: Available in diameters from 5mm to 50mm with anti-reflective coatings tailored to specific wavelengths.
Durability: Superior resistance to thermal shock and harsh environments, ensuring reliability in industrial and defense applications.
Broad Compatibility: Optimized for integration with CO₂ lasers, FTIR spectrometers, and medical imaging devices.
Technical Parameters
| Optical Properties | |
| Transmission Range | 1.2-15μm |
| Refractive Index | 3.41776%@10μm |
| Reflection Loss | 46.1%@10μm |
| Structure | Single crystal,synthetic |
| Cleavage Planes | <111> |
| Physical Properties | |
| Density[g/cm3] | 2.33 |
| Melting Point [℃] | 1414 |
| ThermalConductivity [W/(m×K)] | 163 @ 313K |
| Thermal Expansion [10-6/K] | 2.6 @ 293K |
| Knoop Hardness [kg/mm2] | 1100 |
| Specific Heat Capacity [J/(kg×K)] | 712.8 |
| Dielectric Constant | 13 @f= 9.37GHz |
| Young’s Modulus (E) [GPa] | 130.91 |
| Shear Modulus(G) [GPa] | 79.92 |
| Bulk modulus(K) [GPa] | 101.97 |
| Poisson Coefficient | 0.266 |
| Chemical Properties | |
| Solubility / g/L | None |
| Molecular Weight / g/mol | 28.09 |
| Project | Specification |
|---|---|
| Size range | 2-300mm |
| Thickness | 0.12-60mm |
| Finish | 80-50，60-40，40-20，20-10，10-5 |
| Face | λ/2，λ/4，λ/8，λ/10 |
| Parallelism | <3'-30” |
| Clear aperture | >90% |
Technical Advantages
Ultra-High Purity Material：Fabricated from monocrystalline silicon (99.999% purity) for minimal light scattering and maximum transmission efficiency in UV/IR spectral ranges (1.2–7 μm).
Superior Thermal Stability：Withstands extreme temperatures (-200°C to +400°C) and rapid thermal cycling, ideal for aerospace instrumentation and high-power laser systems.
Precision Surface Accuracy：Achieves λ/10 surface flatness and <5 arcmin centration error, ensuring optimal performance in infrared optics and laser focusing applications.
Customizable Anti-Reflective Coatings：Optional broadband AR coatings (e.g., 3–5 μm or 8–12 μm bands) to reduce reflection losses to <0.5%, enhancing energy efficiency.
Ruggedized Durability：Resistant to chemical corrosion, humidity, and mechanical shock, validated for military-grade and industrial harsh environments.
ISO-Certified Manufacturing：Produced under ISO 9001:2015 standards with full traceability, supporting OEM/ODM demands for medical imaging and research lab equipment.