CONFIGURATION: DISC, W/ OD FLAT, PLANE-PARALLEL
DIAMETER: 3.750″+.000″/-.005″
THICKNESS: 0.041″+/-.001″
EDGE BEVEL: LIGHT PROTECTIVE BEVEL, 2 PLACES.
PARALLELISM: 2 ARC SECONDS MAXIMUM
TRANSMITTED WAVEFRONT ERROR: < 1.0 WAVE @ 633nm.
RMS SLOPE ERROR: < 0.25 WAVE/cm @ 633nm.
SURFACE QUALITY: 20-10 PER MIL-PRF-13830, 2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, LASER GRADE.
CRYSTALLOGRAPHIC ORIENTATION: a-PLANE +/- 15 ARC
MINUTES, WITH THE
c-AXIS 45 DEGREES TO
THE OD FLAT.
COATING: NONE, NOT REQUIRED.