Технические характеристики
- Lens Shape Plano-Convex
- Diameter 25.4 mm
- Lens Material Sapphire
- Antireflection Coating Uncoated
- Surface Quality 60-40 scratch-dig
- F/# 2
- Effective Focal Length (EFL) 50.0 mm
- Back Focal Length (BFL) 47.2 mm
- Radius of Curvature (R) 38.41 mm
- Edge Thickness (Te) 1.5 mm
- Center Thickness (Tc) 3.6 mm
- Design Wavelength 589 nm
- Centration &le,3 arc min
- Diameter Tolerance +0/-0.25 mm
- Center Thickness Tolerance ±0.25 mm
- Clear Aperture &ge,central 90% of diameter
