CONFIGURATION: DISC, PLANE-PARALLEL
DIAMETER: 15.00mm + /- 0.10mm
THICKNESS: 0.500mm +/- 10 microns
PARALLELISM: 1 micron MAXIMUM (13 ARC SECONDS)
FLATNESS: 1/2 WAVE MAXIMUM WITHIN CENTRAL 80%
OF BOTH FACES
SURFACE QUALITY: 20-10 PER MIL-O-13830, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001) +/-0.25deg
COATING: NONE, UNCOATED SUBSTRATE