40mm Dia. x 200mm FL, NIR II Coated, DCX N-K5 Lens

Product Details N-K5 Substrate Various Anti-Reflection (AR) Coatings PCX and DCX Options Available N-K5 Lenses are available in various diameters, focal lengths, as well as Plano-Convex and Double-Convex form factors. Anti-reflective coatings covering the VIS to NIR make these ideal for multiple applications. Specifications General Type: Double-Convex Lens Physical & Mechanical Properties Diameter (mm): 40.00 +0.00/-0.10 Center Thickness CT (mm): 8.00 ±0.10 Edge Thickness ET (mm): 6.07 Centering (arcmin): <1 Clear Aperture CA (mm): 39 Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): 200.00 @ 587.6nm Focal Length Specification Wavelength (nm): 587.6 Back Focal Length BFL (mm): 197.36 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More N-K5 f/#: 5.00 Coating: NIR II (750-1550nm) Coating Specification: R abs ≤1.5% @ 750 - 800nm R abs ≤1.0% @ 800 - 1550nm R avg ≤0.7% @ 750 - 1550nm Wavelength Range (nm): 750 - 1550 Surface Quality: 40-20 Power (P-V) @ 632.8nm: 1.5λ Irregularity (P-V) @ 632.8nm: λ/4 Focal Length Tolerance (%): ±1.00 Radius R 1 =-R 2 (mm): 207.93 Numerical Aperture NA: 0.10 Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification. 8 J/cm 2 @ 1064nm, 10ns Regulatory Compliance Reach 224: Compliant × Certificate of Conformance: View ×