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SPECIFICATIONS
Material : BK7 Glass & UV Grade Fused Silica (FS)
Effective Focal Length Tol.: LQ=± 0.5% / AQ=± 3%
Diameter (Dia = Ø) Tolerance: ± 0.25mm
Thickness Tolerance: ± 0.25mm
Surface Figure: LQ = l/10 @ 633 nm nominal
AQ = ~l/2 @ 633 nm nominal
Surface Finish: LQ = 10-5 both surfaces
AQ = < 60-40 both surfaces
Clear aperture: central 85%
Centration: < 3 arc minutes
Chamfer: ~ 0.30mm @45 deg.
(LQ = Laser Quality / AQ = Analytical Quality)
All dimensions in mm
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