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AHL20-18-S-U

asphericon AHL20-18-S-U lenses are high performance standard aspheric components in asphericon quality (RMS < 0.5 µm). They combine the efficiency and the quality of precision-manufactured aspheres with the cost advantage of mass-production. Aspheres based on CNC grinding and polishing manufacture fulfill the highest requirements in terms of quality and tolerances.
DownloadDesign-Files AHL20-18-S-U26.08 KB
from 187,00 EUR
available
AHL20-18-S-U

Technical data

Product Features

Surface Form Deviation (RMS) [nm]
500
Edge thickness Te [mm]
3.4
Material
S-LAH64
Laser induced damage threshold
12 J/cm², 100 Hz, 6 ns, 532 nm
RoHS compliance
yes
Working distance WD [mm]
14.0
Dia [mm]
20.0
Effective focus length EFL [mm]
18.0
f/d
0.9
Design wavelength [nm]
780
Clear Aperture CA(col) [mm]
18.0
Numerical Apertur (NA)
0.49
Center thickness Tc [mm]
7.1
Clear Aperture CA(foc) [mm]
15.7
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