6.8mm Dia. x 6mm FL, MgF 2 Molded Aspheric Condenser Lens

Product Details Hardened for Improved Durability High Numerical Apertures Ideal for Illumination Applications Molded Aspheric Condenser Lenses are pressed, hardened, and annealed to meet precise optical and mechanical specifications. The hardening process improves the durability of the lenses, making them less susceptible to thermal shock and scratching than traditionally polished lenses. These Molded Aspheric Condenser Lenses are ground and polished on the second surface, enhancing the overall precision of the lenses. Molded Aspheric Condenser lenses are ideal for a wide range of illumination and detection applications, including biotech instruments such as DNA sequencers and polymerase chain reaction (PCR) testing platforms. Specifications General Type: Condenser Lens Note: Click here for more information on the ISO 10110 surface quality specification. Physical & Mechanical Properties Diameter (mm): 6.80 +/-0.3 Diameter of Asphere (mm): 6.8 Center Thickness CT (mm): 2.80 ±0.20 Edge Thickness ET (mm): 0.65 Clear Aperture CA (mm): 5.44 Centering (arcmin): ≤25 Shape of Back Surface: Plano Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): 6.00 @ 587.6nm Focal Length Tolerance (%): ±5 Back Focal Length BFL (mm): 4.20 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Liba2000+ f/#: 0.9 Numerical Aperture NA: 0.56 Abbe Number (v d ): 58.85 Index of Refraction (n d ): 1.520 Coating: MgF 2 (400-700nm) Coating Specification: R avg ≤ 1.75% @ 400 – 700nm Wavelength Range (nm): 400 – 700 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): Plano 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 242: Compliant ×