25mm Diameter x 40mm FL, NIR Coated, K22R Plastic Aspheric Lens

Product Details Full Prescription Data Available Standard 25mm Diameter for Easy System Integration High Numerical Aperture Designs for Superior Light Collection TECHSPEC Plastic Aspheric Lenses offer a lightweight alternative to glass spherical or aspherical lenses. Designed with a standard 25mm diameter, these lenses can be easily integrated into most systems and applications using standard mounting hardware. The plastic substrate provides exceptional value while still maintaining excellent performance and a high numerical aperture. TECHSPEC Plastic Aspheric Lenses feature low haze, low autofluorescence, and excellent coating adhesion, making these lenses ideal for OEM and research applications alike. For alternate designs or custom coating requirements, please contact our Sales Department . Specifications General Type: Aspheric Lens Physical & Mechanical Properties Diameter (mm): 25.00 ± 0.15 Center Thickness CT (mm): 4.80 ± 0.20 Edge Thickness ET (mm): 1.02 Clear Aperture CA (mm): 21.5 Centering (arcmin): ≤5 (by design) Shape of Back Surface: Convex Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): 40.00 @ 587.6nm Back Focal Length BFL (mm): 37.09 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Zeonex K22R f/#: 1.6 Numerical Aperture NA: 0.31 Coating: BBAR (600-1000nm) Coating Specification: R avg <0.7% @ 600 - 1000nm Wavelength Range (nm): 600 - 1000 Focal Length Specification Wavelength (nm): 587.60 Aspheric Design Wavelength (nm): 587.6 Surface Quality: 80-50 Radius R 2 (mm): 269.8 Conjugate Distance: Infinite Environmental & Durability Factors Operating Temperature (°C): -30 to 70 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 250: Compliant ×