9672527

Protective chamfers: 0.1-0.3 mm x 45 deg
Thickness, mm: 3 mm (+/-0.05 mm)
Surface quality, S1/S2: 5/ 3x0.04; L3x0.002; E0.3
Surface figure, S1/S2: 3/ 0.3(0.2)
Parallelism error: <1 arcmin
Material: Corning 7980 0F ArF (UVFS)
Clear aperture: 18 mm diameter central area
Diameter, mm: 25.4 mm (+0/-0.1 mm)