Material: UVFS (Corning 7980 0F)
Diameter: 12.7 mm (+0/-0.1) mm
Thickness: 3 mm (+/-0.1) mm
Clear aperture: >90%
Surface quality, S1/S2: 10-5 S-D
Surface flatness, S1/S2: <λ/10@633 nm
Transmitted Wave-front distortion: <λ/10 @ 633 nm over CA
Parallelism: <10 arcsec
Protective chamfers: 0.1-0.2 mm x 45 deg
Chips: <0.1 mm (<0.05 mm best effort)
S1: AR<0.1% @ 1064 nm, AOI 0 deg.
S2: AR<0.1% @ 1064 nm, AOI 0 deg.