Model SFPX076.AR14 is a 425-675 nm anti-reflection coated, 2 inch (50 mm) diameter, N-SF11 precision plano-convex lens with an effective focal length of 50 mm. It has &lambda,/4 surface irregularity, 40-20 scratch-dig, and is designed to meet the demanding requirements of laser electro-optic applications. It is manufactured from fine annealed optical glass and polished to tight tolerances using master test plates ensures minimum wavefront distortion. Tight surface quality tolerances minimize scatter and unwanted diffraction effects. N-SF11 is an excellent material for most visible and near infrared applications. Its high index and lower F/# values allow for more light collection at a shorter focal distance.
Технические характеристики
- Lens Shape Plano-Convex
- Diameter 50.0 mm
- Lens Material N-SF11
- Antireflection Coating 425-675 nm
- Coating Code AR.14H
- Damage Threshold 5 J/cm2 @ 532 nm, 10 ns
- Surface Quality 40-20 scratch-dig
- Surface Accuracy, Irregularity λ/4
- F/# 1
- Effective Focal Length (EFL) 50.0 mm
- Back Focal Length (BFL) 43.28 mm
- Radius of Curvature (R) 39.24 mm
- Edge Thickness (Te) 3.00 mm
- Center Thickness (Tc) 12 mm
- Design Wavelength 587.6 nm
- Centration
- Focal Length Tolerance ±1 %
- Diameter Tolerance +0.0/-0.025 mm
- Center Thickness Tolerance ±0.1 mm
- Clear Aperture 49 mm
