DIAMETER: 1.000″+.000″/-.010″
CENTER THICKNESS: 0.350″+/-.020″
WEDGE ANGLE: 20.0 DEGREES +/- 0.10 DEGREE
EDGE BEVEL: PROTECTIVE EDGE BREAK, 2 PLACES.
SURFACE ACCURACY: 1/4 WAVE MAXIMUM, 2 FACES.
SURFACE QUALITY: 60-40 PER MIL-O-13830, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001)
COATING: ANTIREFLECTIVE COATING FOR MAXIMUM
TRANSMISSION FROM 1.0 TO 2.5 MICRONS
WITH A NORMAL INCIDENCE ANGLE, APPLIED
TO BOTH FACES.