Material: UV Grade Fused Silica
Design Wavelength: 632.8nm.
Design Index: n=1.45702?.00005
Surface Figure: x:?/2; y:2?
Dimension Tolerance: ?.2mm
Paraxial Focal Length: ?%
Centration: 3 arc minutes
Clear Aperture: >80%
Surface Quality: 60-40 scratch and dig
Bevel: 0.25 mm ?45?
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