4.0mm Dia. x 10.0mm FL, NIR II Coated, Plano-Convex Lens

Product Details AR Coated to Provide <0.7% Reflectance per Surface for 750 - 1550nm Designed for 0° Angle of Incidence Various PCX Coating Options: Uncoated , MgF 2 , VIS 0° , VIS-NIR , NIR I , VIS-EXT , and YAG-BBAR TECHSPEC NIR II Coated Plano-Convex 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. TECHSPEC NIR II Coated Plano-Convex 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° , VIS-NIR , NIR I , VIS-EXT , and YAG-BBAR. Specifications General Type: Plano-Convex Lens Physical & Mechanical Properties Diameter (mm): 4.00 +0.0/-0.025 Center Thickness CT (mm): 1.64 ±0.05 Edge Thickness ET (mm): 1.24 Centering (arcmin): <3 Clear Aperture CA (mm): 3.6 Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): 10.00 @ 587.6nm Focal Length Specification Wavelength (nm): 587.6 Back Focal Length BFL (mm): 8.96 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More N-BK7 f/#: 2.5 Coating: NIR II (750-1550nm) Coating Specification: R abs ≤1.5% @ 750 - 800nm R abs ≤1.0% @ 800 - 1550nm R avg ≤0.7% @ 750 - 1550nm Wavelength Range (nm): 750 - 1550 Surface Quality: 20-10 Power (P-V) @ 632.8nm: 1.5λ Irregularity (P-V) @ 632.8nm: λ/4 Focal Length Tolerance (%): ±1 Radius R 1 (mm): 5.19 Numerical Aperture NA: 0.20 Damage Threshold, Reference: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification. 8 J/cm 2 @ 1064nm, 10ns Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 235: Compliant ×