CONFIGURATION: DISC, CONCAVE/CONVEX
DIAMETER: 0.510″+.000″/-.005″
CENTER THICKNESS: 0.098″+/-.005″
CENTERING ERROR: 3 ARC MINUTES MAXIMUM.
EDGE BEVEL: LIGHT PROTECTIVE BEVEL, 2 PLACES.
ANNULAR RING (SURFACE”2″): 0.032″NOMINAL WIDTH.
SURFACE FINISH: 20-10 PER MIL-O-13830, 2 FACES.
SURFACE”1″ SPH.RADIUS: NONE, INFINITE (PLANO)
SURFACE”2″ SPH.RADIUS: 0.787″+/-.008″CONCAVE.
SURFACE ACCURACY: 1/4 WAVE MAXIMUM, 2 FACES.
MATERIAL TYPE/QUALITY: SCHOTT BK-7, GRADE A,
FINE ANNEALED.
COATING: ANTIREFLECTIVE COATED FOR 0.25% MAXIMUM
REFLECTANCE AT 1.064um WITH A NORMAL
INCIDENCE ANGLE, APPLIED TO BOTH FACES.