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Ensinger PEI

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Schott BG4 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 378/165
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Density 2.66 g/cc
 
Chemical PropertiesOriginal ValueComments
Acid Class, SR 1
Alkali Class, AR 1
Stain Resistance Class, FR 0.0
 
Thermal PropertiesOriginal ValueComments
CTE, linear 7.70 µm/m-°C
@Temperature -30.0 - 70.0 °C
 9.00 µm/m-°C
@Temperature 20.0 - 300 °C
Transformation Temperature, Tg 536 °C
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.52
@Wavelength 1014 nm
Hg
 1.53
@Wavelength 587.6 nm
He
 1.54
@Wavelength 435.8 nm
Hg
 1.57
@Wavelength 302.1 nm
Hg
Transmission, Visible <= 1.0 %
@Wavelength 490 - 690 nm
 87 %
@Wavelength 400 nm
Internal transmittance of 95% at 400 nm
IR Transmittance 91 %
@Wavelength 760 - 800 nm
Internal transmittance of 99% from 760-800 nm.
UV Transmittance <= 0.020 %
@Wavelength 200 - 270 nm
 91 %
@Wavelength 340 - 380 nm
Internal transmittance of 99% from 340-380 nm
Reflection Coefficient, Visible (0-1) 0.92
@Wavelength 587.6 nm
Reflection Factor P

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CSGT02 / 1991

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