CONFIGURATION: DISC, PLANO-CONCAVE
DIAMETER: 19.05mm + 0.00mm /- 0.25mm
CENTER THICKNESS: 2.50mm +/- 0.50mm
EDGE THICKNESS: 2.80mm REF.ONLY
CENTRATION ERROR: 3 ARC MINUTES MAXIMUM.
EDGE BEVEL: SLIGHT PROTECTIVE BEVEL, 2 PLACES.
FOCAL LENGTH: -200.0mm +/- 1.0%
SPHERICAL RADIUS: 142.64mm +/- 1.426mm (CONVEX)
SURFACE ACCURACY: 1/4 WAVE MAXIMUM, 2 FACES.
SURFACE QUALITY: 20-10 PER MIL-O-13830, 2 FACES.
CLEAR APERTURE: CENTRAL 15.2mm MINIMUM DIA, 2 PLCS
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: C-AXIS PERPENDICULAR
TO PLANO FACE, (0001) NOMINAL.
COATING: ANTIREFLECTIVE COATED FOR >99.0%
TRANSMISSION AT 2.94 MICRONS WITH A
0-12deg INCIDENCE ANGLE, APPLIED TO BOTH
FACES. (RANDOM POLARIZATION)
DAMAGE THRESHOLD: 130 J/cm2, 10 Hz, 100usec PULSE.