CONFIGURATION: PLATE, PLANE-PARALLEL
LENGTH: 19.834mm + 0.000mm /- 0.025mm
WIDTH: 6.350mm + 0.000mm /- 0.025mm
THICKNESS: 0.508mm +/- 0.008mm
CLEAR APERTURE: WITHIN 0.75mm OF EDGES OF
SUBSTRATE.
OPTICAL FLATNESS: < 1.0 WAVE PEAK to VALLEY
IRREGULARITY TRANSMITTED
WAVEFRONT WITHIN CLEAR APERTURE.
PARALLELISM: < 0.10 MILLIRADIAN ( 21 ARC SECONDS)
EDGE SQUARENESS: 0.0001mm MAXIMUM T.I.R.
SURFACE QUALITY: 5-5 PER MIL-O-13830, 2 FACES.
EDGE FINISH: FINE GROUND, NO CHIPS > 50 MICRONS.
CRYSTALLOGRAPHIC ORIENTATION: (0001) +/- 2deg