Двояковыпуклая линза, N-BK7, диаметр 25,4 мм, EFL 50,2 мм, 1000–1550 нм Модель: KBX052AR.18

Технические характеристики

• Lens Shape Bi-Convex
• Diameter 25.4 mm
• Lens Material N-BK7
• Antireflection Coating 1000-1550 nm
• Coating Type IR Multilayer
• Coating Code AR.18
• Damage Threshold 7.5 J/cm2, 10 ns pulses, 20 Hz at 1064 nm
• Surface Quality 40-20 scratch-dig
• Surface Accuracy, Irregularity &lambda,/4
• Surface Accuracy, Power 1.5 &lambda,
• F/# 1.9
• Effective Focal Length (EFL) 50.2 mm
• Back Focal Length (BFL) 48.10 mm
• Radius of Curvature (R) 50.806 mm

• Edge Thickness (Te) 3.0 mm
• Center Thickness (Tc) 6.226 mm
• Principal Plane 1 (P1) 2.09 mm
• Principal Plane 2 (P2) -2.09 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