CUSTOMIZED
Material: UVFS (JGS1)
Diameter: 50.8 mm +0/-0.1 mm
Edge thickness: 9.52 mm +/-0.1 mm
Center thickness: 9.2 mm [ref.]
Clear aperture: min 41 mm
Radius of curvature, concave S1: ROC= -1000 mm +/-1%
Radius of curvature, S2: FLAT
Surface quality, S1: 20-10 S-D as per MIL-PRF-13830B
Surface quality, S2: 80-50 SD (inspection polished)
Surface irregularity, S1/S2: <λ/10@633 nm per CA
Centration error: <3 arcmin
Protective chamfer: 0.4-0.6 x 45°
Chips: <0.2 mm stoned
Laser engraved arrow marks S1
Laser engraved ROC=-1000 mm
Coatings (IBS):
S1 (arrow marks): HR>99.9% @ 480-540 nm, AOI=0° GDDr = ~0fs2 @ 480-540 nm
S2: uncoated
