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▣ SPECIFICATIONS
Material : White glass
Sizes : 10㎜ ~ 300㎜ diameter and 10×10㎜ ~ 200×250㎜ square
Density Tolerance : ±10% of O.D. at 550㎚
Surface Figure : Commercial polish
Surface Quality : 80 ~ 50
Clear Aperture : Exceeds central 95% of dimension
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Nominal
Optical Density
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Transmittance
(%)
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Diameter
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Square
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0.10 |
79.0 ± 3 |
NF-R1-ø( ) |
NF-R1-( )X( ) |
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0.15 |
70.0 ± 3 |
NF-R15-ø( ) |
NF-R15-( )X( ) |
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0.20 |
63.0 ± 3 |
NF-R2-ø( ) |
NF-R2-( )X( ) |
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0.30 |
50.0 ± 3 |
NF-R3-ø( ) |
NF-R3-( )X( ) |
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0.40 |
40.0 ± 3 |
NF-R4-ø( ) |
NF-R4-( )X( ) |
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0.50 |
31.0 ± 3 |
NF-R5-ø( ) |
NF-R5-( )X( ) |
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0.60 |
25.0 ± 3 |
NF-R6-ø( ) |
NF-R6-( )X( ) |
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0.70 |
20.0 ± 3 |
NF-R7-ø( ) |
NF-R7-( )X( ) |
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0.80 |
16.0 ± 3 |
NF-R8-ø( ) |
NF-R81-( )X( ) |
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0.90 |
12.0 ± 3 |
NF-R9-ø( ) |
NF-R9-( )X( ) |
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1.00 |
10.0 ± 3 |
NF-1-ø( ) |
NF-1-( )X( ) |
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1.30 |
5.0 ± 3 |
NF-1R3-ø( ) |
NF-1R3-( )X( ) |
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1.50 |
3.2 ± 3 |
NF-1R5-ø( ) |
NF-1R5-( )X( ) |
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2.00 |
1.0 ± 3 |
NF-2-ø( ) |
NF-2-( )X( ) |
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2.50 |
0.32 ± 3 |
NF-2R5-ø( ) |
NF-2R5-( )X( ) |
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3.00 |
0.10 ± 3 |
NF-3-ø( ) |
NF-3-( )X( ) |
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4.00 |
0.01± 3 |
NF-4-ø( ) |
NF-4-( )X( ) |
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