Двояковогнутая линза, плавленый кварц, 25,4 мм, -250 мм EFL, 245–440 нм Модель: SBC019AR.10

Технические характеристики

• Lens Shape Bi-Concave
• Diameter 25.4 mm
• Lens Material UV Fused Silica
• Antireflection Coating 245-440 nm
• Coating Type UV Multilayer
• Coating Code AR.10
• Damage Threshold 2 J/cm2, 10 nsec pulses, 10 Hz at 355 nm
• Surface Quality 20-10 scratch-dig
• Surface Flatness &lambda,/2
• Surface Accuracy, Irregularity &lambda,/4
• Surface Accuracy, Power 1.5 &lambda,
• F/# -9.8
• Effective Focal Length (EFL) -250 mm
• Back Focal Length (BFL) -250.85 mm
• Radius of Curvature (R) -229.890 mm

• Edge Thickness (Te) 3.07 mm
• Center Thickness (Tc) 2.5 mm
• Principal Plane 1 (P1) 0.85 mm
• Principal Plane 2 (P2) -0.85 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