Технические характеристики
- Wavelength Range 350-2000 nm
- Diameter 50.8 mm
- Material Grade A N-BK7
- Antireflection Coating Uncoated
- Surface Flatness &le,&lambda,/10 at 632.8 nm over the clear aperture
- Surface Quality 20-10 scratch-dig
- Diameter Tolerance +0.0/-0.20 mm
- Thickness 10.0 mm
- Wedge 180 ±6 arc min
- Clear Aperture 45.7 mm
- Cleaning See How to Clean Optics