Description
Calcium Fluoride (CaF₂) plano-concave lenses are high-purity single-crystal optical components featuring one flat surface and one inward-curving concave surface, professionally designed for beam divergence, optical beam expansion and focal length reduction applications. These lenses feature ultra-wide spectral transmission covering deep ultraviolet to mid-infrared bands, coupled with low dispersion and minimal intrinsic light absorption. Manufactured with high optical homogeneity and precise surface figuring, CaF₂ plano-concave lenses deliver stable and reliable negative optical power, effectively diverging incident laser and spectral beams without introducing extra background interference, ideal for high-precision broadband optical system beam adjustment.
Manufacturer Supply Infrared Monocrystalline CaF2 Calcium Fluoride Plano Concave Lens for IR Light Sourse
Specifications
| Material: | CaF2 |
|---|---|
| Lens Type: | Plano-Concave |
| Diameter: | custom |
| Thickness: | custom |
| Dimension Tolerance: | +0/-0.1mm |
| Surface Quality: | 60-40,40-20,or better |
| Flatness: | λ/4 |
Got questions about specs? Use the inquiry form to ask.
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Features
- Negative Optical Power Design: Produces stable beam divergence to expand laser beams and shorten system effective focal length as required
- Ultra-wide UV to IR Transmission: Maintains high transmittance across deep ultraviolet, visible and mid-infrared spectral working bands
- Low Chromatic Dispersion: Effectively reduces chromatic aberration, ensuring consistent beam quality for broadband multi-wavelength optical systems
- Low Intrinsic Fluorescence & Absorption: Generates no extra spectral background and reduces light energy loss for high-sensitivity optical testing
- Excellent Structural & Thermal Stability: Maintains stable optical performance and surface shape under long-term light irradiation and temperature fluctuation
- Superior Chemical Inertness: Resists moisture corrosion and chemical erosion, adapting to complex laboratory and industrial application environments
Applications
- Laser Beam Divergence and Expansion: Core optical element for expanding laser beam diameter and adjusting laser beam divergence angle
- Optical System Focal Length Matching: Used for shortening focal length and optimizing optical path structure in combined lens assemblies
- UV and Infrared Spectroscopic Systems: Applied for beam diffusion and light path debugging in spectral detection and analytical instruments
- Optical Correction and Aberration Compensation: Cooperates with convex lenses to eliminate system spherical aberration and optimize imaging quality
- Scientific Research Optical Experiments: Suitable for laboratory beam shaping, optical parameter adjustment and special optical test platforms
Frequently Asked Questions
Why choose CaF₂ material instead of ordinary glass for plano-concave lenses?
Does CaF₂ plano-concave lens need anti-reflection coating?
Can CaF₂ plano-concave lenses be used in high-sensitivity Raman and UV optical systems?
Got more questions? Use the RFQ form to ask the supplier directly.
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