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Neutral Density Filter
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Shenyang Academy of Instrumentation Science  Add Time£º07-11-30 08:19:14

Specifications
Material Fused Silica, BK7, B-20 Optical Crown
Diameter Tolerance ¡À0.2mm
Thickness 2.0mm
Parallelism ¡À3 arc min
Design Wavelength 400nm-700nm
Optical Desity Tolerance ¡À5% at 546.1 nm
Clear Aperture Central 90% of dimensions
Model Material Diameter(mm) Optical Density Transmission(%)
FND1-B12 BK7 12.7 0.1 79.4
FND5-B12 BK7 12.7 0.5 32
FND10-B12 BK7 12.7 1.0 10
FND15-B12 BK7 12.7 1.5 3.2
FND20-B12 BK7 12.7 2.0 1.0
FND30-B12 BK7 12.7 3.0 0.1
FND1-Q12 Fused Silica 12.7 0.1 79.4
FND5-Q12 Fused Silica 12.7 0.5 32
FND10-Q12 Fused Silica 12.7 1.0 10
FDN15-Q12 Fused Silica 12.7 1.5 3.2
FDN20-Q12 Fused Silica 12.7 2.0 1.0
FDN30-Q12 Fused Silica 12.7 3.0 0.1
FDN1-B25 BK7 25.4 0.1 79.4
FND5-B25 BK7 25.4 0.5 32
FND10-B25 BK7 25.4 1.0 10
FND15-B25 BK7 25.4 1.5 3.2
FND20-B25 BK7 25.4 2.0 1.0
FND30-B25 BK7 25.4 3.0 0.1
FND1-Q25 Fused Silica 25.4 0.1 79.4
FND5-Q25 Fused Silica 25.4 0.5 32
FND10-Q25 Fused Silica 25.4 1.0 10
FND15-Q25 Fused Silica 25.4 1.5 3.2
FND20-Q25 Fused Silica 25.4 2.0 1.0
FND30-Q25 Fused Silica 25.4 3.0 0.1
FND1-B50S BK7 50¡Á50 0.1 79.0
FND5-B50S BK7 50¡Á50 0.5 32.0
FND10-B50S BK7 50¡Á50 1.0 10.0
FND15-B50S BK7 50¡Á50 1.5 3.2
FND20-B50S BK7 50¡Á50 2.0 1.0
FND30-B50S BK7 50¡Á50 3.0 0.1
FND1-Q50S Fused Silica 50¡Á50 0.1 79.0
FND5-Q50S Fused Silica 50¡Á50 0.5 32.0
FND10-Q50S Fused Silica 50¡Á50 1.0 10.0
FND15-Q50S Fused Silica 50¡Á50 1.5 3.2
FND20-Q50S Fused Silica 50¡Á50 2.0 1.0
FND30-Q50S Fused Silica 50¡Á50 3.0 0.1
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