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Schott BG18 Band Pass Filter

Category Ceramic , Glass , Optical , Filter
Manufacturer Schott Glas Mainz
Trade Name
Port Shanghai 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.
Physical Properties Metric English Comments
Density 2.68 g/cc
0.0968 lb/in³
Thermal Properties Metric English Comments
CTE, linear 7.40 µm/m-°C

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

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

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

@Temperature 68.0 - 572 °F
Transformation Temperature, Tg 459 °C
858 °F
Optical Properties Metric English Comments
Refractive Index 1.54

@Wavelength 587.6 nm
 1.54

@Wavelength 587.6 nm
 He
1.55

@Wavelength 404.7 nm
 1.55

@Wavelength 404.7 nm
 Hg
Transmission, Visible <= 1.0 %

@Wavelength 660 - 700 nm
 <= 1.0 %

@Wavelength 660 - 700 nm
83 %

@Wavelength 500 - 530 nm
 83 %

@Wavelength 500 - 530 nm
 Internal transmittance of 92% from 510-520 nm
IR Transmittance 72 %

@Wavelength 2400 nm
 72 %

@Wavelength 2400 nm
 Internal transmittance of 79% at 2400 nm.
UV Transmittance <= 0.30 %

@Wavelength 200 - 320 nm
 <= 0.30 %

@Wavelength 200 - 320 nm
59 %

@Wavelength 390 nm
 59 %

@Wavelength 390 nm
 Internal transmittance of 64% at 390 nm
Reflection Coefficient, Visible (0-1) 0.91
0.91
Chemical Properties Metric English Comments
Acid Class, SR 2
2
Alkali Class, AR 2
2
Stain Resistance Class, FR 0.0
0.0
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