SCD1861-02A

CONFIGURATION: DISC, PLANO/CONCAVE
DIAMETER: 0.500″+.000″/-.004″
CENTER THICKNESS: 3.00mm +/- 0.025mm
SPHERICAL RADIUS: 2 METERS.
EFL TOLERANCE: +/- 2%
EDGE BEVEL: 0.10mm NOMINAL X 45deg, 2 PLACES.
CENTERING ERROR: 3 ARC MINUTES MAXIMUM.
CLEAR APERTURE: CENTRAL 90%
SURFACE FINISH: 60-40 PER MIL-O-13830, 2 FACES.
SURFACE FIGURE: 1/2 WAVE MAXIMUM IRREGULARITY,
2 FACES.
MATERIAL TYPE/QUALITY: BK-7 GLASS, GRADE A, FINE
ANNEALED.
COATING: NONE, UNCOATED SUBSTRATE.