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Achromatic Lenses

Achromatic Lenses
Material Optical Glass
Dimension Tolerance +0/-0.2mm
Thickness Tolerance ±0.2mm
Design Wavelength 480, 546.1, 643.8nm
Surface Quality 60/40 scratch and dig
Clear Aperture >90%
Flatness  
Centration <3 arc min
Focal Length Tolerance ±2%
Chamfer Protective <0.5mmx45°
Coating Single layer MgF2 coating @550nm
Power(fringe@633nm) <3
Irregularity(fringe@633nm) <0.5