ERCC-0308-Z-0.8-MR/EY

CONFIGURATION: DISC, PLANO-CONCAVE (0.8 METER)
DIAMETER: 0.250″+.000″/-.005″
EDGE THICKNESS: 0.080″+/-.005″
WEDGE ERROR: 3 ARC MINUTES MAXIMUM
SPHERICAL RADIUS: 800.00mm +/- 8.00mm CONCAVE
SURFACE ACCURACY: 1/40 WAVE MAXIMUM @ 10.6um.
SURFACE FINISH: 40-20 SCRATCH-DIG PER MIL-O-13830.
MATERIAL TYPE/QUALITY: ZINC SELENIDE, LASER GRADE.
COATING: CONCAVE FACE: DIELECTRIC COATING FOR
> 99.85% REFLECTANCE AT 2.94 MICRONS
WITH A NORMAL INCIDENCE ANGLE.
(NO METALS ALLOWED).
PLANO FACE: UNCOATED
MARKING: ARROW ON OD SURFACE POINTING TOWARDS
CONCAVE SURFACE.