new material
Zinc selenide plano-concave lens is a high-performance optical component designed for superior infrared transmission, precise beam divergence control, and minimal optical distortion. Manufactured from high-purity ZnSe, it offers exceptional optical clarity, excellent durability, and reliable spectral performance in demanding environments. This lens is widely used in infrared imaging, laser optics, aerospace applications, and precision scientific instruments, ensuring optimal functionality for advanced optical systems.
Product Overview
The Zinc Selenide (ZnSe) plano-concave lens is an optical element made from high-purity Zinc Selenide, featuring a plano-concave shape (one flat surface and one concave surface). This lens is commonly used in optical systems to modify the direction, focal length, or image size of a light beam, achieving specific optical effects. Zinc Selenide is known for its high transparency and excellent optical properties, particularly in the near-infrared, mid-infrared, and far-infrared regions, making it ideal for a variety of advanced optical applications.
Key Features
- High Transparency: Zinc Selenide offers high transmission, particularly in infrared optical systems, efficiently transmitting light across visible and infrared light spectra.
- Low Reflectivity: The lens features a precision-polished surface with an anti-reflective coating, minimizing reflection losses and improving the efficiency of optical systems.
- Excellent Thermal Stability: Zinc Selenide has excellent thermal stability, maintaining good optical performance in high-temperature environments, making it suitable for various high-temperature applications.
- Precision Manufacturing: The manufacturing of Zinc Selenide plano-concave lenses requires precise processing and polishing to ensure high-quality surface finish and dimensional accuracy, meeting high optical standards.
- Superior Mechanical Strength: Zinc Selenide lenses exhibit excellent hardness and resistance to damage, making them ideal for use in harsh environments.
Applications
- Laser Systems: Zinc Selenide plano-concave lenses are widely used in laser systems to adjust beam size, shape, and focal length, enabling beam expansion or focusing adjustments.
- Optical Instruments: These lenses are used in various optical instruments to optimize imaging systems and improve overall optical efficiency.
- Spectroscopic Instruments: Zinc Selenide lenses are used in spectrometers to collimate and focus light, enhancing the precision and stability of analytical instruments.
- Infrared Optical Systems: With its excellent infrared transmission, Zinc Selenide is commonly used in infrared imaging and spectroscopy, widely applied in infrared detection and imaging systems.
- Sensor Systems: As a key component in optical sensor systems, Zinc Selenide lenses improve the sensing capability and precision of optical systems.
| Physical Property | Value |
| Crystal Structure | Cubic |
| Density | 5.27 g/cm³ |
| Resistivity | ~10¹² Ω·cm |
| Melting Point | 1525 ℃ |
| Chemical Purity | 100.00% |
| Thermal Expansion | 7.1×10⁻⁶ @ 273K |
| 7.8×10⁻⁶ @ 373K | |
| 8.3×10⁻⁸ @ 473K | |
| Thermal Conductivity | 18.0 W/(m·K) @ 298K |
| Specific Heat Capacity | 0.339 J/(g·K) @ 298K |
| Knoop Hardness | 110 kg/mm² |
| Bending Strength | 55 MPa |
| Young's Modulus | 67.2 GPa |
| Poisson's Coefficient | 0.28 |
| Optical Property | Value |
| Transmission Range | 0.5-22 μm |
| Refractive Index Inhomogeneity | <3×10⁻⁶ @ 632.8μm |
| Absorption Coefficient | 5.0×10⁻³ /cm @ 1300nm |
| 7.0×10⁻⁴ /cm @ 2700nm | |
| 4.0×10⁻⁴ /cm @ 3800nm | |
| 4.0×10⁻⁴ /cm @ 5250nm | |
| 5.0×10⁻⁴ /cm @ 10600nm | |
| Thermal Light Coefficient | 1.07×10⁻⁴ @ 632.8nm |
| 7.0×10⁻⁵ @ 1150nm | |
| 6.2×10⁻⁵ @ 3390nm | |
| 6.1×10⁻⁵ @ 10600μm | |
| 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 |
