CUSTOMIZED
Material: UVFS
Diameter: 20.0 mm (+0/0.1 mm)
Edge thickness: 3.0 mm (+/-0.1 mm)
Central thickness: 4.39 mm
Clear aperture: min. 17 mm
Surface quality, S1/S2: 20-10 S-D over CA
Surface irregularity, S1/S2: <λ/6@633 nm per CA
Focal length: F=+80 mm @ 546.1 nm
ROC: +36.80616 mm +/- 5 fringes
Centration error: <3 arcmin
Protective chamfers: 0.2-0.4 mm x 45deg
Arrow indicates S1 (CX)
Chip: <0.5mm stoned
Coatings (IBS):
S1: AR<0.25% @ 355 nm, AOI=0 deg
S2: AR<0.25% @ 355 nm, AOI=0 deg
