CONFIGURATION: DISC W/ OD FLATS, PLANE-PARALLEL
DIAMETER: 100.00mm + 0.00mm /- 0.10mm
OD FLAT SIZES: 60.00mm PRIMARY / 39.20mm SECONDARY
OD FLAT LOCATIONS: 90 DEGREES SEPARATION.
THICKNESS: 1.00mm +/- 0.05mm
EDGE BEVELS: 0.20mm MAXIMUM X 45deg, BOTH FACES.
PARALLELISM: 5 ARC SECONDS MAXIMUM
TRANSMITTED WAVEFRONT: < 1 WAVE PER 25mm @ 633nm.
CLEAR APERTURE: CENTRAL 88.0mm DIAMETER ZONE.
SURFACE QUALITY: 20-10 PER MIL-PRF-13830, 2 FACES
MATERIAL TYPE/QUALITY: SAPPHIRE, HIGH PURITY,
KYROPULOS GROWN, OPTICAL
GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001) +/- 2 DEGREES
COATING: NONE, NOT REQUIRED.