Material: UV Grade Fused Silica
Design Wavelength: 632.8 nm,
Design Index: n=1.45702+/-0.00005
Surface Figure: x: ¦Ë/2; y: 2¦Ë
Dimension Tolerance: +/-0.2mm
Paraxial Focal Length: +/-2%
Centration: 3 arc minutes
Clear Aperture: >80%
Surface Quality: 20-10 scratch and dig
Bevel: 0.25 mm x 45¡ã