CONFIGURATION: PLATE, PLANE-PARALLEL
LENGTH: 2.520″+/-.005″
WIDTH: 0.570″+/-.005″
THICKNESS: 0.075″+/-.015″
PARALLELISM: 5 ARC MINUTES MAXIMUM
CORNER BEVEL: 0.060″+/-.005″ X 45deg, 4 PLACES.
EDGE BEVEL: LIGHT PROTECTIVE BEVEL X 45deg,
8 PLACES.
SURFACE ACCURACY: 4 WAVES MAXIMUM AT 633nm,
2 FACES.
SURFACE QUALITY: 40-20 PER MIL-PRF-13830, 2 FACES.
MATERIAL TYPE/QUALITY: BK-7 GLASS, GRADE A, FINE
ANNEALED.
COATING: ANTIREFLECTIVE COATED WITH MgF2 FOR
MAXIMUM TRANSMISSION AT 670nm WITH A
NORMAL INCIDENCE ANGLE, APPLIED TO BOTH
FACES.