DIAMETER: 9.00mm + 0.00mm /- 0.10mm
THICKNESS: 0.454mm +/- 0.030mm
PARALLELISM: 4 ARC MINUTES MAXIMUM.
FLATNESS: 0.001mm MAXIMUM T.I.R.
SURFACE FINISH: 60-40 PER MIL-PRF-13830, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001)
COATING: DUAL-BAND ANTIREFLECTIVE COATED FOR
2.0% MAXIMUM REFLECTANCE FROM 675nm TO
695nm WITH A NORMAL TO 10 DEGREE
INCIDENCE ANGLE. AND ALSO 0.50% MAXIMUM
REFLECTANCE FROM 825nm TO 940nm WITH A
NORMAL TO 21 DEGREE INCIDENCE ANGLE.
COATING APPLIED TO ONE FACE ONLY.
MARKING: DOT ON COATED FACE 0.60mm IN FROM OD
EDGE (SEE DRAWING).