CONFIGURATION: DISC, PLANO/CONVEX
DIAMETER: 0.750″+.000″/-.005″
CENTER THICKNESS: 0.261″ REF.
EDGE THICKNESS: 0.253″EDGE THK.
EDGE BEVEL: 0.25mm NOMINAL X 45deg, 2 PLACES.
SPHERICAL RADIUS: 8.500″+/- 0.043″ CONVEX
CENTERING ERROR: 3 ARC MINUTES MAXIMUM.
CLEAR APERTURE: CENTRAL 0.600″ MINIMUM DIAMETER.
SURFACE FINISH: 60-40 PER MIL-O-13830, 2 FACES.
SURFACE FIGURE: PLANO: POWER: 10 WAVES MAXIMUM
IRREG: 5 WAVES MAXIMUM
SPH.RAD: POWER: SEE RAD.TOLERANCE
IRREG: 5 WAVES MAXIMUM
MATERIAL TYPE/QUALITY: SAPPHIRE,OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: C-AXIS PERPENDICULAR
TO PLANO FACE, (0001) NOMINAL.
COATING: NONE, UNCOATED SUBSTRATE.