18mm Dia. x 15.5mm FL, Aspheric Condenser Lens, NIR I

Product Details Molded Illumination Lenses Aspheric or Spherical Designs High Numerical Apertures Condenser Lenses are molded lenses designed for illumination applications. Featuring large apertures and short focal lengths, Condenser Lenses are commonly used in emitter-detector applications, projection applications, or condensing illumination applications such as Koehler Illumination. The Aspheric Condenser Lenses are molded on the aspheric surface and ground and polished on the opposite face, offering superior performance. The Plano-Convex (PCX) Condenser Lenses are molded on both surfaces, offering excellent value. Specifications General Type: Condenser Lens Physical & Mechanical Properties Diameter (mm): 18.00 +0.0/-0.2 Diameter of Asphere (mm): 18.00 Center Thickness CT (mm): 7.00 ±0.30 Edge Thickness ET (mm): 1.44 Clear Aperture CA (mm): 16.20 Centering (arcmin): ≤30 Shape of Back Surface: Plano Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): 15.50 Focal Length Tolerance (%): ±8 Back Focal Length BFL (mm): 10.87 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More H-K9L f/#: 0.86 Numerical Aperture NA: 0.58 Coating: NIR I (600-1050nm) Coating Specification: R avg ≤0.5% @ 600 – 1050nm Wavelength Range (nm): 600 – 1050 Surface Quality: 80-50 (typical) Radius R 2 (mm): Plano Conjugate Distance: Infinite Regulatory Compliance Certificate of Conformance: View ×