CUSTOMIZED
Substrate material: Fused Silica
Diameter: 25.4 mm +0/-0.1 mm
Edge thickness: 6.35 mm +/-0.1 mm
Coated aperture: min 23 mm
Clear aperture: min 20 mm
Surface quality, S1 (CV): 10-5 S-D as per MIL-PRF-13830B
Surface quality, S1 (PL): 20-10 S-D as per MIL-PRF-13830B
Surface roughness, S1: <1 A RMS over CA
Surface irregularity, S1/S2: <λ/8 @ 633 nm over CA
Radius of curvature, S1: ROC=-1000 mm +/- 10 mm
Protective chamfers: 0.2 - 0.4 mm x 45 deg
Chips: <0.2 mm stoned
Barrel side: polished
Coatings (IBS):
S1 (CV, arrow marks): HR>99.999% @ 1600 nm - 1690 nm, AOI=5 deg
S2 (PL): AR<0.1% @ 1600 nm - 1690 nm, AOI=5 deg
