Технические характеристики
- Wavelength Range 2-8 m
- Diameter 50.8 mm
- Material Calcium Fluoride
- Coating Second Surface Uncoated
- Angle of Incidence 45°
- Reflection 50 ±10%
- Transmission 50 ±10%
- Surface Flatness &le,2 &lambda, at 632.8 nm over the clear aperture
- Surface Quality 60-40 scratch-dig
- Diameter Tolerance +0.00/-0.13 mm
- Thickness 2.0 mm
- Thickness Tolerance ± 0.13 mm
- Parallelism 3 arc minutes
- Clear Aperture > central 85% of diameter
- Cleaning See How to Clean Optics
