CONFIGURATION: PLANE-PARALLEL
DIAMETER: 1.000″+.000″/-.005″
THICKNESS: 0.120″+/-.010″
PARALLELISM: 3 ARC MINUTES MAXIMUM.
FLATNESS: 1/2 WAVE MAXIMUM 0.633um, 2 FACES.
SURFACE QUALITY: SURFACE”1″: 40-20 PER MIL-O-13830
                 SURFACE”2″: 80-50 PER MIL-O-13830
MARKING: ARROW LOCATED ON OD POINTING TOWARDS
         SURFACE “1” FACE.
MATERIAL: BK-7 GLASS, GRADE A, FINE ANNEALED.
COATING: SURFACE “1”: SHORT PASS FILTER COAT FOR
         REFLECTANCE AT 10.6 MICRONS AND > 60.0%
         TRANSMISSION FROM 450 TO 650 NANOMETERS,
         BOTH WITH A 45deg INCIDENCE ANGLE.
         SURFACE “2”: BROAD-BAND ANTIREFLECTIVE
         COAT FOR MAXIMUM TRANSMISSION IN THE
         VISIBLE REGION WITH A 45deg INCIDENCE
         ANGLE.
| Weight | 0.1 lbs | 
|---|



