CONFIGURATION: PLATE, PLANE-PARALLEL
LENGTH: 0.394″+/-.005″
WIDTH: 0.315″+/-.005″
THICKNESS: 0.039″+/-.005″
PARALLELISM: 10 ARC MINUTES MAXIMUM.
TRANSMITTED WAVEFRONT: 1/2 WAVE MAXIMUM @ 633nm.
SURFACE QUALITY: 40-20 PER MIL-PRF-13830, 2 FACES
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: (0001)
COATING: SURFACE “1”: PARTIAL REFLECTIVE COATED
FOR 1.00% +/- 0.30%
REFLECTANCE AT 2.94um WITH
A 45deg INCIDENCE ANGLE.
SURFACE “2”: ANTIREFLECTIVE COATED FOR
< 0.25% REFLECTANCE AT
2.94um WITH A 45deg
INCIDENCE ANGLE.
MARKING: ARROW ON EDGE SURFACE POINTING TOWARDS
SURFACE “1”.