UV Grade Fused Silica

V-coat AR, R <0.5%

45°±3°

0.25 MW/cm2 CW, 2.5 J/cm2 with 10 nsec pulses at 266 nm, typical

≤λ/10 at 632.8 nm over the clear aperture

10-5 scratch-dig

+0/-0.13 mm

±0.38 mm

30 ± 15 arc min

> central 85% of diameter

0.25-0.76 mm face width

45° ±15°

MIL-C-675C, moderate abrasion million cycles

See How to Clean Optics