CONFIGURATION: DISC, CONCAVE-CONVEX (MENISCUS)
DIAMETER: 0.500″+.000″/-.005″
EDGE THICKNESS: 2.00mm +/- 0.04mm
WEDGE ANGLE: 3.0 MINUTES +/- 0.2 MINUTES
( BEST EFFORT ONLY )
RADIUS OF CURVATURE (SURFACE 1): 240.00mm CONCAVE
+/- 4.8mm
RADIUS OF CURVATURE (SURFACE 2): 140.80mm CONVEX
+/- 2.8mm
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.
EDGE BEVELS: 0.005″ NOMINAL X 45deg, 2 PLACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001)
COATING: SEE SPECIFICATION SCD1977 Rev.A