Schott BG64 Bandpass Filter

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Schott BG64 Bandpass Filter
Categories:	Ceramic; Glass; Optical; Filter
Material Notes:	IR filter glasses, BG60 – BG64 and BG67, have been designed to perform in difficult environments. Equipped with a specified coating, these filters remain completely transparent for more than 1000 hours without any surface corrosion and deliver extraordinary image quality. Advantages Repeatable optical performance due to mass production Excellent inner quality, e. g. low striae Allows true color imaging High NIR absorption at smaller thickness Applications: Medical Imaging Surveillance NVIS (night vision) compatible display Industrial applications Information provided by SCHOTT.
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Physical Properties	Metric	English	Comments

Density	2.78 g/cc	0.100 lb/in³
Thickness	100 microns	3.94 mil

Chemical Properties	Metric	English	Comments
Acid Class, SR	52.3	52.3
Alkali Class, AR	3.3	3.3
Stain Resistance Class, FR	1.0	1.0

Mechanical Properties	Metric	English	Comments
Hardness, Knoop	371	371	HK (0.1/20)

Thermal Properties	Metric	English	Comments
CTE, linear	12.0 µm/m-°C @Temperature -30.0 - 70.0 °C	6.67 µin/in-°F @Temperature -22.0 - 158 °F
	13.8 µm/m-°C @Temperature 20.0 - 300 °C	7.67 µin/in-°F @Temperature 68.0 - 572 °F
Transformation Temperature, Tg	417 °C	783 °F

Optical Properties	Metric	English	Comments
Refractive Index	1.513 @Wavelength 404.7 nm	1.513 @Wavelength 404.7 nm
	1.53 @Wavelength 587.6 nm	1.53 @Wavelength 587.6 nm
	1.532 @Wavelength 546.1 nm	1.532 @Wavelength 546.1 nm
	1.549 @Wavelength 365 nm	1.549 @Wavelength 365 nm
Transmission, Visible	7.0 % @Wavelength 630 nm	7.0 % @Wavelength 630 nm
	<= 55 % @Wavelength 694 nm	<= 55 % @Wavelength 694 nm
	>= 72 % @Wavelength 633 nm	>= 72 % @Wavelength 633 nm
	>= 99 % @Wavelength 514 nm	>= 99 % @Wavelength 514 nm
IR Transmittance	<= 0.0010 % @Wavelength 880 nm	<= 0.0010 % @Wavelength 880 nm
	<= 8.7 % @Wavelength >=4150 nm	<= 8.7 % @Wavelength >=4150 nm
	9.0 % @Wavelength 2400 - 2800 nm	9.0 % @Wavelength 2400 - 2800 nm
	9.8 % @Wavelength 1450 nm	9.8 % @Wavelength 1450 nm
	<= 45 % @Wavelength >=1060 nm	<= 45 % @Wavelength >=1060 nm
UV Transmittance	<= 2.3 % @Wavelength <=340 nm	<= 2.3 % @Wavelength <=340 nm
	>= 99 % @Wavelength 405 nm	>= 99 % @Wavelength 405 nm
Reflection Coefficient, Visible (0-1)	0.916 @Wavelength 587.6 nm	0.916 @Wavelength 587.6 nm	Reflection Factor P

Descriptive Properties
Bubble class	2

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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CSGT9851 / 183104

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