7980 1-G, 25.4MM Ø X 6.35MM TK - PLANO/CONCAVE, ROC: 1 M, S/D:40/20, FLATNESS:λ/4, C.A.=80%

7980 1-G, 25.4mm Ø X 6.35mm TK
Material: Corning 7980 1-G
Diameter: 25.4mm +0.00/-.1mm
Thickness: 6.35mm ±.5mm
Side 1:
-ROC: 1 meter
-Spherical to 1/4 wave
-Surface Quality: 40/20
-C.A. = 80%
Side 2:
-Surface Quality: 40/20
-Flatness: 1/4 wave
-C.A. = 80%
All edges and bevels commerial polish
Wedge: 1 minute