CONFIGURATION: DISC, PLANO/CONVEX (640.0mmFL)
DIAMETER: 25.40mm + 0.00mm /- 0.25mm
CENTER THICKNESS: 2.12mm +/- 0.25mm
EDGE THICKNESS: 2.00mm +/- 0.25mm
EDGE BEVEL: 0.35mm X 45 deg TYPICAL, 2 PLACES.
SPHERICAL RADIUS: 377.68mm +/- 1.89mm CONVEX.
CENTERING ERROR: 5 ARC MINUTES MAXIMUM.
CLEAR APERTURE: CENTRAL 21.60mm MINIMUM DIAMETER.
SURFACE FINISH: 10-5 PER MIL-O-13830, 2 FACES.
SURFACE FIGURE: PLANO: POWER: 1/10 WAVE MAXIMUM
IRREG: 1/10 WAVE MAXIMUM
SPH.RAD: POWER: SEE RAD.TOLERANCE
IRREG: 1/10 WAVE MAXIMUM
MARKING(S): LORAD PART NUMBER ON SIDE.
MATERIAL TYPE/QUALITY: FUSED SILICA, STANDARD
OPTICAL GRADE.
COATING: HIGH POWER ANTIREFLCTIVE COATING FOR
<0.15% REFLECTANCE PER SURFACE AT 1.064u
WITH A NORMAL INCIDENCE ANGLE, 2 FACES.