Material: UVFS (Corning 7980 0F)
Diameter: 12.7 mm (+0/-0.1 mm)
Thickness: 6.35 mm (+/-0.1 mm)
Clear aperture: >90%
Surface quality, S1: 10-5 S-D as per MIL-PRF-13830B over CA
Surface quality, S2: Commercial polish (80-50 S-D over CA)
Surface flatness, S1: <λ/8 or better @633 nm over 10mm aperture
Surface irregularity, S1: λ/10@633 nm
Parallelism: <10 arcsec
Protective chamfers: 0.1-0.4 mm x 45 deg
Chips: <0.2 mm
Coatings (IBS):
S1(arrow marks): HRa>99.9% @ 1070 nm, AOI=45°
S2: uncoated
