LENGTH & WIDTH TOLERANCE: +/-.005″
THICKNESS: 0.0180″+/-.0002″
PARALLELISM: 3 ARC MINUTES MAXIMUM.
FLATNESS: 10 WAVES/INCH MAXIMUM, 2 FACES.
SURFACE FINISH: 10-5 PER MIL-PRF-13830, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001) +/- 1 deg.
COATING: BROADBAND ANTIREFLECTIVE COATED FOR
< 0.25% REFLECTANCE FROM 1.30um TO
1.60um WITH A NORMAL INCIDENCE ANGLE,
APPLIED TO ONE FACE ONLY.