Description
A calcium fluoride (CaF2) plano-convex lens is an optical component featuring one flat (plano) surface and one outwardly curved (convex) surface. Renowned for its exceptional transmission across a broad spectral range—from ultraviolet (UV, ~180 nm) to infrared (IR, ~8 μm)—CaF2 is particularly valued in deep-UV and high-power laser applications. Its low refractive index and minimal chromatic dispersion reduce spherical and chromatic aberrations, enhancing imaging precision. This lens is ideal for laser focusing, spectroscopy, lithography , and thermal imaging systems. Additionally, CaF2 exhibits high laser damage thresholds, thermal stability, and resistance to environmental degradation, making it suitable for demanding industrial, scientific, and defense applications.
Optical CaF2 Calcium Fluoride Plano-Convex Lens
Specifications
| Material: | CaF2 |
|---|---|
| Diameter: | 12.7 mm |
| Focal Length: | 20 mm |
| Edge Thickness, Te: | 1.5 mm |
| Lens Type: | Plano-Convex |
| Surface Quality: | 60-40,40-20,or better |
| Surface Accuracy: | 1/4 lambda |
| Concentricity: | <3 arcmin |
| Bevel: | <0.35mm |
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Features
- Broad Spectral Transmission: Transmits effectively from UV (~180 nm) to IR (~8 μm), ideal for deep-UV and wideband applications.
- Low Refractive Index & Dispersion: Minimizes spherical and chromatic aberrations for precise imaging.
- High Laser Damage Threshold: Withstands intense laser beams, suitable for high-power systems.
- Thermal Stability: Maintains performance under temperature fluctuations. Environmental Resistance: Resists moisture and chemical degradation for durability.
Applications
- Laser Focusing: Used in UV/IR laser systems for beam collimation and focusing.
Spectroscopy: Enhances accuracy in UV-Vis-IR spectral analysis. - Lithography: Critical in excimer laser (e.g., ArF/KrF) systems for semiconductor manufacturing.
- Thermal Imaging: Enables high-resolution IR detection in surveillance and diagnostics.
- Scientific Instruments: Applied in microscopes, telescopes, and space optics for clarity.
- Defense Systems: Utilized in targeting and reconnaissance due to ruggedness and reliability.
Frequently Asked Questions
What distinguishes CaF2 from fused silica lens?
Is CaF2 lens used in defense technology?
What makes CaF2 suitable for spectroscopy?
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