Плоско-выпуклая линза, ValuMax, N-BK7, 25,4 мм, 350 мм EFL, 400–700 нм Модель: KPX615-C

Технические характеристики

• Lens Shape Plano-Convex
• Diameter 25.4 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 60-40 scratch-dig
• Surface Accuracy, Irregularity &lambda,/2
• Surface Accuracy, Power 2.5 &lambda,
• F/# 13.8
• Effective Focal Length (EFL) 350 mm
• Back Focal Length (BFL) 347.73 mm
• Radius of Curvature (R) 181.552 mm

• Edge Thickness (Te) 3.0 mm
• Center Thickness (Tc) 3.45 mm
• Principal Plane 2 (P2) -2.27 mm
• Design Wavelength 546.1 nm
• Centration &le,3 arc min
• Chamfers 0.25-0.75 mm
• Chamfers Angle/Tolerance 45° ±15°, typical
• Focal Length Tolerance ±2 %
• Diameter Tolerance +0/-0.15 mm
• Center Thickness Tolerance ±0.2 mm
• Clear Aperture &ge,central 90% of diameter
• Cleaning See How to Clean Optics