CUSTOMIZED
Material: UVFS
Diameter: 38.1 mm +0/-0.1 mm
Thickness: 6.35 mm +/-0.1 mm
Clear aperture: min 32.5 mm, centered
Surface quality, S1: 20-10 S-D over CA MIL-PRF-13830B
Surface quality, S2: commercial polishing (80-50 S-D)
Surface flatness, S1: <λ/6 @ 633 nm over any 13 mm aperture within CA
Parallelism: <5 arcmin
Protective chamfers: 0.2 - 0.3 mm x 45°
Chips: <0.2 mm stoned
Laser engraved arrow marks to S1
Coatings (IBS):
S1(arrow marks): HRsp > 99.9% @ 1030 nm + HRa_avg > 80% @ 400-800 nm, AOI 45 deg.
S2: uncoated
