CONFIGURATION: CONICAL, PLANE-PARALLEL
MAJOR DIAMETER: 0.200″+.000/-.001″ (AFTER BEVEL)
MINOR DIAMETER: 0.0901″ REFERENCE
CONICAL ANGLE: 20 DEGREES NOMINAL
THICKNESS: 0.151″+/-.001″
PARALLELISM: 5 ARC MINUTE MAXIMUM.
SURFACE ACCURACY: 1/4 WAVE MAXIMUM, 2 FACES.
SURFACE QUALITY: SCRATCH FREE AT 60 X
BEVEL ON BASE: 0.020″ X 45 dg.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001).
COATING: NONE, NOT REQUIRED.