20mm Dia x 16mm FL, NIR I Coated, Molded Aspheric Condenser Lens

Product Details High Numerical Apertures Fully Documented for OEM Integration Ideal for Illumination Applications TECHSPEC Molded Aspheric Condenser Lenses have been designed for integration into the illumination path of OEM instrumentation. Available in 5 to 50mm diameters, the small diameter lenses are ideal for medical devices or portable instruments, while the larger lenses are typically integrated into benchtop analytical equipment including biotech instruments such as DNA sequencers and polymerase chain reaction (PCR) testing platforms. The front aspheric surface is molded to eliminate spherical aberrations, while the second surface is ground and polished for improved performance. Full prescription data and drawings are available to aid in design integration. Note: For custom coating options, please contact us . Specifications General Type: Condenser Lens Note: Click here for more information on the ISO 10110 surface quality specification. Physical & Mechanical Properties Diameter (mm): 20.00 +0.0/-0.2 Diameter of Asphere (mm): 20.00 Center Thickness CT (mm): 10.45 ±0.30 Edge Thickness ET (mm): 3.21 Clear Aperture CA (mm): 17.77 Centering (arcmin): ≤25 Shape of Back Surface: Plano Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): 16.00 @ 587.6nm Focal Length Tolerance (%): ±5 Back Focal Length BFL (mm): 9.13 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Liba2000+ f/#: 0.8 Numerical Aperture NA: 0.62 Abbe Number (v d ): 58.9 Index of Refraction (n d ): 1.52 Coating: NIR I (600-1050nm) Coating Specification: R avg ≤0.5% @ 600 – 1050nm Wavelength Range (nm): 600 – 1050 Design Wavelength DWL (nm): 587.6 Focal Length Specification Wavelength (nm): 587.6 Surface Quality: Molded Side: 5/3 x 0.4; E 0.2 Polished Side: 5/3 x 0.25; E 0.2 Radius R 2 (mm): ∞ Conjugate Distance: Infinite Material Properties Coefficient of Thermal Expansion CTE (10 -6 /°C): 9.4 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 235: Compliant ×