12.5mm Dia. x 20mm FL, VIS-NIR Coated, Plano-Convex Lens

Product Details AR Coated to Provide <1.25% Reflectance per Surface for 400 - 1000nm <0.25% Reflectance @ 880nm Designed for 0° Angle of Incidence Various PCX Coating Options: Uncoated , MgF 2 , VIS 0° , NIR I , NIR II , VIS-EXT , and YAG-BBAR TECHSPEC VIS-NIR Coated Plano-Convex (PCX) Lenses have a positive focal length, making them ideal for collecting and focusing light in imaging applications. They are also useful in a variety of applications involving emitters, detectors, lasers, and fiber optics. Plano-Convex lenses are ideal for a multitude of optics and photonics applications, including biotech instruments such as DNA sequencers and polymerase chain reaction (PCR) testing platforms. TECHSPEC VIS-NIR Coated Plano-Convex (PCX) Lenses are available in a wide variety of diameters and focal lengths. Identical designs of these PCX lenses are also offered uncoated or with broadband anti-reflective (BBAR) coatings, which include MgF2 , VIS 0° , NIR I , NIR II , VIS-EXT , and YAG-BBAR. These coated lenses are optimized for a wide range of optics and photonics applications, including biotech instruments such as DNA sequencers and polymerase chain reaction (PCR) testing platforms. Specifications General Type: Plano-Convex Lens Physical & Mechanical Properties Diameter (mm): 12.50 +0.0/-0.025 Center Thickness CT (mm): 3.50 ±0.05 Edge Thickness ET (mm): 1.40 Centering (arcmin): <1 Clear Aperture CA (mm): 11.5 Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): 20.00 @ 587.6nm Focal Length Specification Wavelength (nm): 587.6 Back Focal Length BFL (mm): 17.69 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More N-BK7 f/#: 1.6 Coating: VIS-NIR (400-1000nm) Coating Specification: R abs ≤0.25% @ 880nm R avg ≤1.25% @ 400 - 870nm R avg ≤1.25% @ 890 - 1000nm Wavelength Range (nm): 400 - 1000 Surface Quality: 40-20 Power (P-V) @ 632.8nm: 1.5λ Irregularity (P-V) @ 632.8nm: λ/4 Focal Length Tolerance (%): ±1 Radius R 1 (mm): 10.34 Numerical Aperture NA: 0.31 Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification. 5 J/cm 2 @ 532nm, 10ns Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 235: Compliant ×