Плоско-выпуклая линза N-BK7, 50,8 мм, EFL 75,6 мм, диапазон 400–700 нм, модель KPX181-C

Технические характеристики

• Lens Shape Plano-Convex
• Diameter 50.8 mm
• Lens Material N-BK7
• Antireflection Coating 400-700 nm
• Coating Type Visible Single-Layer MgF2
• Coating Code -C
• Damage Threshold 7 J/cm², 10 ns pulses, 20 Hz at 532 nm
• Surface Quality 40-20 scratch-dig
• Surface Accuracy, Irregularity &lambda,/4
• Surface Accuracy, Power 1.5 &lambda,
• F/# 1.4
• Effective Focal Length (EFL) 75.6 mm
• Back Focal Length (BFL) 67.43 mm
• Radius of Curvature (R) 39.070 mm

• Edge Thickness (Te) 3.0 mm
• Center Thickness (Tc) 12.383 mm
• Principal Plane 2 (P2) -8.16 mm
• Design Wavelength 589 nm
• Centration &le,3 arc min
• Chamfers 0–0.8 mm face width
• Chamfers Angle/Tolerance 45° ±15°, typical
• Focal Length Tolerance ±1 %
• Diameter Tolerance +0/-0.1 mm
• Center Thickness Tolerance ±0.1 mm
• Clear Aperture &ge,central 90% of diameter
• Cleaning See How to Clean Optics