L X W: 32.00mm X 32.00mm + 0.10mm – 0.00mm
THICKNESS: 3.18mm + 0.20mm /- 0.00mm
PARALLELISM: 3 ARC MINUTES MAXIMUM.
FLATNESS: 1 WAVE/INCH MAXIMUM WITHIN CLEAR
APERTURE, 2 FACES.
SURFACE QUALITY: 40-20 PER MIL-O-13830, 2 FACES.
CLEAR APERTURE: CENTRAL 30.00mm DIAMETER.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: RANDOM.
COATING: ANTIREFLECTIVE COATED FOR 0.25% MAXIMUM
REFLECTANCE PER SURFACE FROM 800nm TO
820nm WITH A NORMAL INCIDENCE ANGLE,
APPLIED TO BOTH FACES.