Plate mirrors

Specifications
Length and Width for dimensions 0 to 101.6: +/- .25
Length and Width for dimensions over 101.6: +/- 1.0
Center Thickness (CT): +/- .2
Cosmetics R1: 40/20
Surface Quality R1: See below @ 546.1nm
Surface Quality R2: Medium grind
Clear Aperture: 90% of surface area
All dimensions are in millimeters.

Spherical concave mirrors Concave Precision Grade Mirrors

Specifications
Effective Focal Length (EFL): +/- 1%
Diameter (DIA) +0/- .1
Center Thickness (CT): +/- .2
Cosmetics R1: 40/20
Surface Quality R1: 1 X 1/4 wave @ 546.1nm
Surface Quality R2: Medium Grind
Centering Accuracy: 2 arc minutes TIA
Clear Aperture: 90% of surface area