38.1mm Dia. x 250mm FL, Uncoated, ISP Optics Calcium Fluoride (CaF 2 ) PCX Lens | CF-PX-38-250

Product Details Greater than 90% Transmission from 0.35-7μm Low Index of Refraction Ideal for Integration into Infrared Systems ISP Optics Calcium Fluoride Plano-Convex (PCX) Lenses provide greater than 90% transmission from 350nm to 7μm and feature a low refractive index, allowing them to be used without an Anti-Reflection (AR) coating. Calcium Fluoride features a high laser damage threshold and low stress birefringence, making them highly suitable for integration into infrared systems. Additionally, calcium fluoride features low solubility and offers superior hardness to comparable fluoride-based substrates, making these PCX lenses capable of withstanding harsh environments and exposure to the elements. ISP Optics Calcium Fluoride Plano-Convex (PCX) Lenses are ideal for demanding applications that require superior performance from the visible through the mid-wave infrared (MWIR) spectra. Specifications General Type: Plano-Convex Lens Model Number: CF-PX-38-250 Physical & Mechanical Properties Diameter (mm): 38.10 +0.00/-0.13 Center Thickness CT (mm): 3.80 ±0.20 Edge Thickness ET (mm): 3.80 Centering (arcmin): <3 Clear Aperture CA (mm): 34.29 Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): 250.00 @ 5μm Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Calcium Fluoride (CaF 2 ) f/#: 6.56 Coating: Uncoated Wavelength Range (nm): 300 - 8000 Surface Quality: 60-40 Irregularity (P-V) @ 632.8nm: λ Focal Length Tolerance (%): ±2 Radius R 1 (mm): 100.00 Numerical Aperture NA: 0.08 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 240: Compliant ×