Positive Achromatic Lenses D=8.00mm F=20.00mm VIS N-BK7/SF2
Product No. 145017
Stock In Stock
Express DHL, Fedex etc.
- Dia 8.00mm
- EFL 20.00mm
- Coating AR@400~700nm
- Material N-BK7/SF2
- BFL 17.80mm
- R1 11.10mm
- R2 -9.20mm
- R3 -34.80mm
- CT 4.00mm
- CT1 2.50mm
- CT2 1.50mm
- ET 3.00mm
- Available Mount Ring N/A
- Design Wavelength --
- Diameter Tolerance +0.0/-0.1
- Center Thickness Tolerance ±0.2
- Surface Accuracy λ/4 @632.8nm
- Focal Length Tolerance ±2%
- Centering Tolerance 3~5arcmin
- Surface Quality 40-20~60-40
- Bevel 0.2X45°
- n --