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Schott NG11 Neutral Density Filter

Category Ceramic , Glass , Optical , Filter
Manufacturer Schott Glas Mainz
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
Ionically colored glass. Data provided by the manufacturer, Schott Glas Mainz..Similar glasses include NG3, NG4, NG5, NG9, NG10, NG1, NG 12
Physical Properties Metric English Comments
Density 2.42 g/cc
0.0874 lb/in³
Thermal Properties Metric English Comments
CTE, linear 6.90 µm/m-°C

@Temperature -30.0 - 70.0 °C
 3.83 µin/in-°F

@Temperature -22.0 - 158 °F
7.50 µm/m-°C

@Temperature 20.0 - 300 °C
 4.17 µin/in-°F

@Temperature 68.0 - 572 °F
Transformation Temperature, Tg 473 °C
883 °F
Optical Properties Metric English Comments
Refractive Index 1.49

@Wavelength 1014 nm
 1.49

@Wavelength 1014 nm
 Hg
1.50

@Wavelength 587.6 nm
 1.50

@Wavelength 587.6 nm
 He
1.51

@Wavelength 404.7 nm
 1.51

@Wavelength 404.7 nm
 Hg
Transmission, Visible 73 %

@Wavelength 690 - 700 nm
 73 %

@Wavelength 690 - 700 nm
 Internal transmittance of 79% from 690-700 nm.
IR Transmittance 75 %

@Wavelength 2100 - 2600 nm
 75 %

@Wavelength 2100 - 2600 nm
 Internal transmittance of 82% from 2300-2600 nm.
UV Transmittance 66 %

@Wavelength 390 nm
 66 %

@Wavelength 390 nm
 Internal transmittance of 72% at 390 nm.
Reflection Coefficient, Visible (0-1) 0.92
0.92
Chemical Properties Metric English Comments
Acid Class, SR 3.4
3.4
Alkali Class, AR 2
2
Stain Resistance Class, FR 1
1
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