CONFIGURATION: DISC, Bi-CONCAVE
DIAMETER: 0.500″+.000″/-.005″
EDGE THICKNESS: 2.00mm +/- 0.04mm
CENTERING ERROR: 3.0 ARC MINUTES MAXIMUM
EDGE BEVELS: 0.005″ NOMINAL X 45deg, 2 PLACES
RADIUS OF CURVATURE (SURFACE 1): 152.40mm CONCAVE
+/- 1.52mm
RADIUS OF CURVATURE (SURFACE 2): 152.40mm CONCAVE
+/- 1.52mm
SURFACE ACCURACY: 1/10 WAVE RMS MAXIMUM, 2 FACES.
SURFACE QUALITY: 40-20 PER MIL-O-13830, 2 FACES.
SURFACE ROUGHNESS: 10 ANGSTROMS RMS MAXIMUM,
2 FACES.
MATERIAL TYPE QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001)
COATING: SEE SPECIFICATION SCD1984 Rev.A