CONFIGURATION: DISC, PLANO/CONVEX
DIAMETER: 30.00mm + 0.000mm /- 0.020mm
CENTER THICKNESS: 5.00mm +/- 0.10mm
EDGE THICKNESS: 3.340mm REF.ONLY
EDGE BEVELS: 0.25mm / 0.50mm FACE WIDTH X 45deg
SPHERICAL RADIUS: 68.70mm CONVEX
CENTERING ERROR: < 0.025mm TIR, CONVEX TO PLANO.
CLEAR APERTURE: CENTRAL 25.00mm MINIMUM DIAMETER.
SURFACE FINISH: 60-40 PER MIL-PRF-13830, 2 FACES.
SURFACE ROUGHNESS: < 10 ANGSTROMS RMS
SURFACE FIGURE: POWER: 2 WAVES MAXIMUM
MATERIAL QUALITY: CSI WHITE HIGH PURITY SAPPHIRE,
HEMLITE GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001).
COATING: ANTIREFLECTIVE COATED 0.10% MAXIMUM
REFLECTANCE PER SURFACE AT 532nm WITH A
NORMAL INCIDENCE ANGLE, APPLIED TO BOTH
FACES. HFO2 & SiO2 COATING DESIGN.
DURABILITY & ADHESION PER MIL-C-675C.