DIAMETER: 40.00mm +/- 0.10mm
CENTER THICKNESS: 10.00mm +/- 0.05mm
OVERALL THICKNESS: 13.50mm +/- 0.05mm (TO ANNULUS)
SURFACE “1” CONVEX RADIUS: 67.00mm +/- 0.10mm
SURFACE “2” CONCAVE RADIUS: 51.00mm +/- 0.10mm
SPHERICAL SURFACE POWER: CONTROLLED BY RADIUS
(OVER C.A.) TOLERANCE, 2 PLACES
SPHERICAL SURFACE IRREG: 2 FRINGES MAXIMUM AT
(OVER C.A.) 0.633um, 2 FACES.
CLEAR APERTURE: CENTRAL 35.00mm MINIMUM DIAMETER,
2 FACES.
CENTERING ERROR: 0.03mm MAXIMUM T.I.R.
EDGE BEVEL: LIGHT PROTECTIVE BEVEL, 2 PLACES.
SURFACE QUALITY: 60-40 PER MIL-PRF-13830, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001).
COATING: BROADBAND ANTIREFLECTIVE COATED FOR
MAXIMUM TRANSMISSION FROM 1.0 MICRONS TO
5.0 MICRONS, APPLIED TO BOTH FACES.