Calcium Fluoride (CaF2) Lenses: The Ultimate Solution for High-Performance Optical Systems
Infrared material CaF2
3/10/20251 min read


In the fast-evolving world of optics, precision and material quality are non-negotiable. For industries ranging from semiconductor manufacturing to aerospace, calcium fluoride (CaF2) lenses have emerged as a game-changer. At Changchun Positive Optics, we specialize in crafting premium-grade CaF2 lenses designed to meet the most demanding optical challenges. Here’s why these lenses are a must-have for your next project—and how they can elevate your applications to new heights.
Why Calcium Fluoride Lenses?
Calcium fluoride is a synthetic crystalline material renowned for its exceptional optical properties. Unlike conventional glass or fused silica, CaF2 lenses offer:
1. Ultra-Wide Transmission Range: From ultraviolet (UV) to infrared (IR) wavelengths (0.15 µm to 8 µm), CaF2 lenses outperform competitors, making them ideal for spectroscopy, laser systems, and thermal imaging.
2. Low Dispersion & High Laser Damage Threshold: Minimize chromatic aberration and withstand high-power laser applications without degradation.
3. Chemical & Thermal Stability: Resistant to moisture, acids, and extreme temperatures, ensuring longevity in harsh environments.
Key Applications of CaF2 Lenses
1. Deep UV Lithography: Critical for semiconductor manufacturing, CaF2 lenses enable precise patterning of microchips at nanometer scales.
2. High-Power Laser Systems: Used in medical lasers, cutting-edge research, and defense technologies, where clarity and durability are paramount.
3. Infrared Imaging & Spectroscopy: Enhance accuracy in environmental monitoring, gas analysis, and aerospace navigation systems.
4. Microscopy & Biomedical Imaging: Achieve unmatched resolution in UV microscopy for life sciences and diagnostics.
Why Choose Changchun Positive Optics Company for CaF2 Lenses?
Not all CaF2 lenses are created equal. Our expertise ensures:
✅ Custom Designs: Tailored curvature, coatings (anti-reflective, hydrophobic), and sizes to match your specifications.
✅ Superior Material Quality: Synthetic CaF2 with minimal impurities for optimal light transmission.
✅ Advanced Manufacturing: State-of-the-art polishing and metrology tools guarantee λ/10 surface accuracy.
✅ Rigorous Quality Control: Every lens undergoes stringent testing for wavefront distortion, surface roughness, and environmental resilience.