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Ensinger PEI

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Schott BG42 Band Pass Filter
Categories: Ceramic; Glass; Optical; Filter

Material Notes: Ionically colored glass. Data provided by the manufacturer, Schott Glas Mainz.

Key Words: DIN BP 478/253, DIN KP 604
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Physical PropertiesOriginal ValueComments
Density 2.69 g/cc
 
Chemical PropertiesOriginal ValueComments
Acid Class, SR 2
Alkali Class, AR 2
Stain Resistance Class, FR 0.0
 
Thermal PropertiesOriginal ValueComments
CTE, linear 7.30 µm/m-°C
@Temperature -30.0 - 70.0 °C
 8.70 µm/m-°C
@Temperature 20.0 - 300 °C
Transformation Temperature, Tg 477 °C
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.54
@Wavelength 587.6 nm
He
 1.55
@Wavelength 404.7 nm
Hg
Transmission, Visible <= 10 %
@Wavelength 660 - 700 nm
 84 %
@Wavelength 500 - 530 nm
Internal transmittance of 93% from 510-530 nm
IR Transmittance 81 %
@Wavelength 2400 nm
Internal transmittance of 89% at 2400 nm.
UV Transmittance <= 0.60 %
@Wavelength 200 - 310 nm
 62 %
@Wavelength 390 nm
Internal transmittance of 68% at 390 nm
Reflection Coefficient, Visible (0-1) 0.91
@Wavelength 587.6 nm
Reflection Factor P

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CSGT14 / 2003

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