ER-0513-FS-MR(Y)

CONFIGURATION: DISC, PLANE-PARALLEL
DIAMETER: 0.500"+.000"/-.005"
THICKNESS: 0.125"+/-.005"
PARALLELISM: 3 ARC MINUTES MAXIMUM.
FLATNESS: 1/4 WAVE MAXIMUM @ 0.633um, 2 FACES.
SURFACE FINISH: 20-10 PER MIL-O-13830, 2 FACES.
MATERIAL TYPE/QUALITY: FUSED SILICA, STANDARD
OPTICAL GRADE.
COATING: SURFACE "1": 99.7% MINIMUM REFLECTANCE
AT 1.064 MICRONS WITH A
NORMAL INCIDENCE ANGLE.
SURFACE "2": NONE, UNCOATED.
MARKING: ARROW ON OD SURFACE POINTING TOWARDS
SURFACE "1".

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.

ERCC-0508-Z-1.5-99

CONFIGURATION: DISC, PLANO-CONCAVE (1.5 METER)
DIAMETER: 0.500"+.000"/-.005"
EDGE THICKNESS: 0.080"+/-.005"
WEDGE ERROR: 3 ARC MINUTES MAXIMUM
SPHERICAL RADIUS: 1.50 METERS +/- 0.0075 METER
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: PARTIAL REFLECTIVE COATING
FOR 99.0% +/- 0.25% REFLECTANCE AT
10.60um WITH A NORMAL INCIDENCE ANGLE.
PLANO FACE: ANTIREFLECTIVE COATED FOR
0.25% MAXIMUM REFLECTANCE AT 10.60um
WITH A NORMAL INCIDENCE ANGLE.
MARKING: ARROW ON OD SURFACE POINTING TOWARDS
CONCAVE FACE.

ERCC-1012-G-20-99.5

CONFIGURATION: DISC, PLANO-CONCAVE (20 METER)
DIAMETER: 1.000"+.000"/-.005"
EDGE THICKNESS: 0.120"+/-.010"
WEDGE ERROR: 3 ARC MINUTES MAXIMUM
SPHERICAL RADIUS: 20 METER CONCAVE
SURFACE ACCURACY: 1/40 WAVE MAXIMUM @ 10.6um.
SURFACE FINISH: 40-20 SCRATCH-DIG PER MIL-O-13830.
MATERIAL TYPE/QUALITY: GERMANIUM, SINGLE CRYSTAL.
COATING: CONCAVE FACE: 99.5% to 99.8% REFLECTANCE
AT 10.6 MICRONS WITH A
NORMAL INCIDENCE ANGLE.
PLANO FACE: ANTIREFLECTANCE COAT FOR
0.50% MAXIMUM REFLECTANCE
AT 10.6 MICRONS WITH A
NORMAL INCIDENCE ANGLE.
MARKING: ARROW ON OD SURFACE POINTING TOWARDS
CONCAVE FACE.

ERCC-1024-Z-01M-UC

CONFIGURATION: DISC, PLANO-CONCAVE (1.0 METER)
DIAMETER: 1.000"+.000"/-.005"
EDGE THICKNESS: 0.245"+/-.005"
WEDGE ANGLE: 30 ARC MINUTES +/- 5 ARC MINUTES
SURFACE ACCURACY: 1/10 WAVE MAXIMUM @ 4.5 MICRONS
SURFACE QUALITY: 20-10 PER MIL-PRF-13830, 2 FACES.
SURFACE FINISH: < 10 ANGSTROMS RMS, 2 FACES.
MATERIAL TYPE/QUALITY: ZINC SELENIDE, LASER GRADE.
COATING: NONE, UNCOATED SUBSTRATE.
MARKING: ARROW ON OD SURFACE POINTING TOWARDS
CONCAVE FACE.

ERM-21/05-Z-95

CONFIGURATION: DISC, PLANE-PARALLEL
DIAMETER: 21.00mm + 0.00mm /- 0.10mm
THICKNESS: 5.00mm +/- 0.10mm
PARALLELISM: 2 ARC MINUTES MAXIMUM
EDGE BEVEL: 0.25mm NOMINAL X 45deg, 2 PLACES.
SURFACE ACCURACY: 1/2 WAVE MAXIMUM @ 633nm,2 FACES
SURFACE FINISH: 40-20 PER MIL-PRF-13830, 2 FACES.
CLEAR APERTURE: CENTRAL 19.95mm DIAMETER, 2 FACES.
MATERIAL TYPE/QUALITY: ZINC SELENIDE, LASER GRADE.
COATING: SURFACE "2": PARTIAL REFLECTIVE COATED
FOR 95.0% +/- 0.50% REFLECTANCE AND
ALSO 5.0% +/- 0.50% TRANSMISSION, BOTH
WITH A NEAR NORMAL INCIDENCE ANGLE.
RANDOM POLARIZATION. 5 KW/cm2 DAMAGE
THRESHOLD.
SURFACE "1": ANTIREFLECTIVE COATED FOR
MAXIMUM TRANSMISSION AT 10.60 MCIRONS.
MARKING: ARROW ON OD SURFACE POINTING TOWARDS
SURFACE "2" FACE.

ERM-21/05-Z-97

CONFIGURATION: DISC, PLANE-PARALLEL
DIAMETER: 21.00mm + 0.00mm /- 0.10mm
THICKNESS: 5.00mm +/- 0.10mm
PARALLELISM: 2 ARC MINUTES MAXIMUM
EDGE BEVEL: 0.25mm NOMINAL X 45deg, 2 PLACES.
SURFACE ACCURACY: 1/2 WAVE MAXIMUM @ 633nm,2 FACES
SURFACE FINISH: 40-20 PER MIL-PRF-13830, 2 FACES.
CLEAR APERTURE: CENTRAL 19.95mm DIAMETER, 2 FACES.
MATERIAL TYPE/QUALITY: ZINC SELENIDE, LASER GRADE.
COATING: SURFACE "2": PARTIAL REFLECTIVE COATED
FOR 97.0% +/- 0.50% REFLECTANCE AND
ALSO 3.0% +/- 0.50% TRANSMISSION, BOTH
WITH A NEAR NORMAL INCIDENCE ANGLE.
RANDOM POLARIZATION. 5 KW/cm2 DAMAGE
THRESHOLD.
SURFACE "1": ANTIREFLECTIVE COATED FOR
MAXIMUM TRANSMISSION AT 10.60 MICRONS.
MARKING: ARROW ON OD SURFACE POINTING TOWARDS
SURFACE "1" FACE.

ERW-1024-Z-UC

CONFIGURATION: DISC, PLANE-PARALLEL
DIAMETER: 1.000"+.000"/-.005"
THICKNESS: 0.245"+/-.005"
WEDGE ANGLE: 30 ARC MINUTES +/- 5 ARC MINUTES
SURFACE ACCURACY: 1/10 WAVE MAXIMUM @ 4.5 MICRONS
SURFACE QUALITY: 20-10 PER MIL-PRF-13830, 2 FACES.
SURFACE ROUGHNESS: < 10 ANGSTROMS RMS, 2 FACES.
MATERIAL TYPE/QUALITY: ZINC SELENIDE, LASER GRADE
COATING: NONE, UNCOATED SUBSTRATE.