new material
Germanium crescent lens is a precision optical component designed for specialized light refraction, beam manipulation, and enhanced image correction. Manufactured from high-purity germanium, it offers exceptional optical clarity, minimal distortion, and excellent transmission across infrared wavelengths. This uniquely shaped lens is widely used in imaging systems, laser optics, industrial applications, and scientific research, ensuring superior optical performance for advanced optical configurations.
Product Overview
The Germanium Crescent Lens is a specialized optical element made from high-purity germanium material, featuring a crescent-shaped structure with a convex exterior and concave interior. This design allows the lens to effectively alter the direction and focus of light beams. With outstanding optical performance, particularly in the infrared spectral range, it is widely used in many high-precision optical systems.
Key Features
- High Transparency and Low Reflectivity: Excellent optical transmission in both visible and infrared ranges, minimizing light loss.
- High Thermal Stability: Germanium has exceptional thermal stability, making it suitable for use in optical systems operating in high-temperature environments.
- Environmental Resistance: Germanium offers good inertness to air, water, acids, and alkalis, ensuring stable performance in harsh environmental conditions.
- High Refractive Index: With a high refractive index, it effectively enhances the numerical aperture (NA) of the system and improves optical performance.
- Precision Manufacturing: Utilizes precise manufacturing and polishing processes to ensure surface quality and dimensional accuracy.
Applications
- LiDAR Systems: Used in LiDAR systems as a beam modulation, collimating, or focusing element.
- Optical Sensors: Widely used in high-precision optical sensors, providing excellent transmission performance.
- Spectrometers: In infrared spectrometers, it is used for beam focusing and collimation.
- Infrared Imaging: Due to its excellent transparency and high thermal stability, it is frequently used in thermal imaging systems, especially in demanding environments.
- Infrared Optical Systems: As a key component in infrared optical systems, it improves imaging quality and system stability.
- Harsh Environment Applications: The Germanium Crescent Lens is ideal for optical systems used in high-temperature, high-pressure, or other extreme environments.
| Optical Property | Value |
| Transmission Range | 2-15 μm |
| Reflection Loss | 4.0028 @ 10.6 μm |
| Absorption Coefficient | 1.3 × 10⁻³ @ 3.8 μm |
| 3 × 10⁻² @ 10.6 μm | |
| Structure | Cubic Crystal System |
| Cleavage Planes | <111 |
| Physical Property | Value |
| Density | 5.33 g/cm³ |
| Melting Point | 936 ℃ |
| Thermal Conductivity | 58.61 W/(m·K) @ 293K |
| Thermal Expansion | 6.1 × 10⁻⁶/K @ 298K |
| Knoop Hardness | 780 kg/mm² |
| Specific Heat Capacity | 310 J/(kg·K) |
| Dielectric Constant | 16.6 @ 9.37 GHz |
| Young's Modulus | 102.7 GPa |
| Shear Modulus | 67 GPa |
| Bulk Modulus | 77.2 GPa |
| Poisson's Coefficient | 0.28 |
| Chemical Property | Value |
| Solubility | Insoluble |
| Molecular Weight | 72.61 g/mol |
| Property | Value |
| Diameter Range | 2-300mm |
| Focal Length | 15-5000mm |
| Thickness | 0.12-60mm |
| Surface Quality | 80-50, 60-40, 40-20, 20-10, 10-5 |
| Surface Flatness | λ/2, λ/4, λ/8, λ/10 |
| Clear Aperture | >90% |
| Coating | Customizable |
