LXM-28-BK7-88-UC

CONFIGURATION: DISC, PLANO/CONVEX
DIAMETER: 28.00mm + 0.00mm /- 0.10mm
CENTER THICKNESS: 6.20mm REF.
EDGE THICKNESS: 2.50mm +/- 0.25mm
EDGE BEVEL: LIGHT PROTECTIVE BEVEL, 2 PLACES.
SPHERICAL RADIUS: 45.33mm +/- 0.63mm CONVEX
CENTERING ERROR: 3 ARC MINUTES MAXIMUM.
CLEAR APERTURE: CENTRAL 25.20mm MINIMUM DIAMETER.
SURFACE FINISH: 40-20 PER MIL-O-13830, 2 FACES.
SURFACE ACCURACY: 1/2 FRINGE MAXIMUM AT 633nm,
WITHIN CLEAR APERTURE, 2 FACES.
MATERIAL TYPE/QUALITY: SCHOTT BK-7 GLASS, GRADE A,
FINE ANNEALED.
MARKING: ARROW LOCATED ON OD SURFACE POINTING
TOWARDS CONVEX SURFACE.
COATING: NONE, UNCOATED SUBSTRATE.