new material
Zinc selenide double-concave lens is a precision optical component designed for controlled beam expansion, minimized spherical aberration, and superior infrared transmission. Manufactured from high-purity ZnSe, it offers exceptional optical clarity, strong resistance to environmental degradation, and reliable thermal stability. This lens is widely used in laser systems, infrared imaging, aerospace applications, and scientific instrumentation, ensuring optimal light manipulation and performance for advanced optical systems.
Product Overview
The Zinc Selenide (ZnSe) double-concave lens is an optical component with two inwardly curved surfaces, typically made from high-purity ZnSe material. This lens is designed to diverge parallel incident light, making it ideal for beam expansion and projection applications. Zinc Selenide is known for its exceptional optical performance and mechanical strength, especially in the near-infrared, mid-infrared, and far-infrared spectral regions, offering outstanding transmission properties.
Key Features
- Negative Focal Length Design: This lens design causes parallel light rays to diverge, making it suitable for beam expansion and projection applications.
- High Optical Transmission: Zinc Selenide provides excellent transmission across multiple spectral regions, including near-infrared, mid-infrared, and far-infrared.
- Superior Mechanical Properties: ZnSe has high hardness and is resistant to surface damage, making it suitable for high-power applications.
- Precision Manufacturing: The lens is precision-crafted with advanced cutting and polishing techniques to ensure surface quality and dimensional accuracy.
- Optimized Anti-Reflection and Transmission: ZnSe lenses are often coated to enhance anti-reflective and transmission properties, improving overall performance.
Applications
- Beam Expansion and Projection: Used in optical systems to expand and project beams, increasing beam divergence.
- Laser Systems and Optical Instruments: Widely employed in laser systems and optical devices, optimizing beam transmission.
- Spectroscopic Instruments: ZnSe’s excellent optical performance makes it a popular choice for spectroscopic applications, improving measurement accuracy.
- High-Power Laser Systems: Due to its high hardness and durability, ZnSe is ideal for high-power laser systems, minimizing the need for protective coatings.
- Infrared Imaging Systems: Commonly used in infrared optical systems to enhance transmission and stability.
| 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 |
