CUSTOMIZED
Material: UVFS
Diameter: 50.8 mm +0/-0.1 mm
Thickness: 9.52 mm +/-0.1 mm
Clear aperture: min 40 mm
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/3 @ 633 nm per CA
Surface irregularity, S1: <λ/8 @ 633 nm per CA
Parallelism: <5 arcmin
Protective chamfers: 0.2 - 0.3 mm x 45 deg
Chips: <0.3 mm stoned
Laser engraved arrow marks to S1
Coatings (IBS):
S1 (arrow marks): HRa>99.9% @ 940 nm - 980 nm, AOI=45°
Low absorption
S2: Uncoated
LIDT: >5 kW/cm2, 980 nm, CW (beam dia 8-30 mm)
