new material
Calcium fluoride crescent lens is a precision optical component designed for specialized light refraction, beam manipulation, and enhanced image correction. Manufactured from high-purity CaF₂, it offers exceptional optical clarity, minimal distortion, and excellent transmission across ultraviolet, visible, and 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 Calcium Fluoride Crescent Lens is an optical lens made from high-purity Calcium Fluoride (CaF₂) material. This lens features a crescent shape, with one convex surface and one concave surface. Calcium Fluoride is known for its excellent optical transmission, especially in the ultraviolet, visible, and infrared wavelengths, making it ideal for applications in laser systems, infrared optics, ultraviolet optics, and high-energy detectors. This lens can be designed as either a converging or diverging lens to meet specific optical application requirements.
Key Features
- High Transparency: Excellent light transmission across ultraviolet, visible, and infrared wavelengths, improving optical efficiency in various systems.
- Outstanding Mechanical Properties: Calcium Fluoride has high hardness and strong resistance to mechanical shocks, making it suitable for use in harsh environments.
- Thermal Stability: With high resistance to thermal shock, this lens performs reliably in both high and low-temperature environments.
- Low Scattering and Reflection: Precision manufacturing and polishing ensure near-perfect surface quality, minimizing light loss and enhancing system performance.
- Coating Options: The lens can be coated to enhance light transmission and anti-reflection properties, optimizing optical performance.
Applications
- Laser Systems: Used as an optical component in laser systems for beam collimation, focusing, or divergence.
- Infrared Optics: Ideal for infrared imaging and thermal imaging systems, providing stable infrared optical performance.
- Ultraviolet Optics: Used in ultraviolet optical applications for efficient light transmission in UV cutoff regions.
- High-Energy Detectors: As a key element in high-energy detectors, enhancing detection precision and performance.
- Optical Instruments: Utilized in various optical instruments, including lenses, beam splitters, filters, prisms, and windows, to improve system stability and transmission efficiency.
| Optical Property | Value |
| Transmission Range | 0.13-10 μm |
| Transmittance | >94%@193nm-7.87μm |
| Refractive Index | 1.4288@2.5μm, 1.39908@5μm |
| Reflection Loss | 5.4%@5μm (both surfaces) |
| Absorption Coefficient | 7.8×10⁻⁴@2.7μm |
| Structure | Cubic Crystal System |
| Cleavage Planes | <111 |
| Physical Property | Value |
| Density | 3.18 g/cm³ |
| Melting Point | 1420 ℃ |
| Thermal Conductivity | 9.71 W/(m·K) @ 293K |
| Thermal Expansion | 18.5×10⁻⁶/K @ 273K |
| Knoop Hardness | 158.3 kg/mm² |
| Specific Heat Capacity | 854 J/(kg·K) |
| Dielectric Constant | 6.76 @ 1 MHz |
| Young's Modulus | 75.8 GPa |
| Shear Modulus | 33.77 GPa |
| Bulk Modulus | 82.71 GPa |
| Poisson's Coefficient | 0.26 |
| Chemical Property | Value |
| Solubility | 0.016 g/L @ 20℃ |
| Molecular Weight | 78.0748 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 |
