Model SFPX040 is an uncoated, 1/2 inch (12.7 mm) diameter, N-SF11 precision plano-convex lens with an effective focal length of 12.7 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 12.7 mm
- Lens Material N-SF11
- Antireflection Coating Uncoated
- Surface Quality 40-20 scratch-dig
- Surface Accuracy, Irregularity λ/4
- F/# 1
- Effective Focal Length (EFL) 12.7 mm
- Back Focal Length (BFL) 10.46 mm
- Radius of Curvature (R) 9.97 mm
- Edge Thickness (Te) 1.72 mm
- Center Thickness (Tc) 4 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 11.7 mm
