40mm Dia. x 60mm FL, VIS 0° Coated, Achromatic Lens

Product Details Designed for 0° Angle of Incidence Less Than 0.4% Reflectance Per Surface from 425 – 675nm MgF 2 and VIS-NIR Coated Achromats Also Available TECHSPEC VIS 0° Coated Achromatic Lenses consist of two optical components cemented together to form an achromatic doublet. The doublet is computer optimized to correct for on-axis spherical and chromatic aberrations. Achromatic lenses are best for applications involving multi-color (white light) imaging due to their specific doublet lens pairing that enables them to correct the color separation inherent in glass. TECHSPEC VIS 0° Coated Achromatic Lenses provide optimized transmission for 425 – 675nm, reducing average reflection to 0.4%. MgF2 and VIS-NIR Coated Achromats are also available on our website. Specifications General Type: Achromatic Lens Physical & Mechanical Properties Diameter (mm): 40.00 +0.0/-0.025 Center Thickness CT (mm): 17.46 ±0.20 Center Thickness CT 1 (mm): 14.46 ±0.10 Center Thickness CT 2 (mm): 3.00 ±0.10 Edge Thickness ET (mm): 10.03 Clear Aperture CA (mm): 39.00 Centering (arcmin): <1 Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): 60.00 Focal Length Tolerance (%): ±1 Focal Length Specification Wavelength (nm): 587.6 Back Focal Length BFL (mm): 50.29 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More N-SK11 / N-SF5 f/#: 1.5 Numerical Aperture NA: 0.33 Coating: VIS 0° (425-675nm) Coating Specification: R avg ≤0.4% @ 425 - 675nm Wavelength Range (nm): 425 - 675 Radius R 1 (mm): 37.33 Radius R 2 (mm): -31.54 Radius R 3 (mm): -124.51 Surface Quality: 40-20 Power (P-V) @ 632.8nm: 1.5λ Irregularity (P-V) @ 632.8nm: λ/4 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 253: Compliant ×