Schott WG320 Long Pass Filter

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Schott WG320 Long Pass Filter
Categories:	Ceramic; Glass; Optical; Filter
Material Notes:	Base glass. Data provided by the manufacturer, Schott Glas Mainz. Similar glasses include GG395, GG400, GG420, GG435, GG455, GG475, GG495, OG515, OG530, OG550, OG570, OG590, RG610, RG630, RG645, RG665, RG695, RG715, RG780, RG830, RG850, RG1000, WG225, WG280, WG295, WG305, GG385
Key Words:	DIN LP320
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.
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Physical Properties	Original Value	Comments

Density	3.22 g/cc

Chemical Properties	Original Value	Comments
Acid Class, SR	1
Alkali Class, AR	2
Stain Resistance Class, FR	0.0

Thermal Properties	Original Value	Comments
CTE, linear	7.10 µm/m-°C @Temperature -30.0 - 70.0 °C
	8.30 µm/m-°C @Temperature 20.0 - 300 °C
Transformation Temperature, Tg	413 °C
Glass Temperature Coefficient	0.060

Optical Properties	Original Value	Comments
Refractive Index	1.46 @Wavelength 1014 nm	He
	1.47 @Wavelength 587.6 nm	He
	1.49 @Wavelength 365 nm	Hg
	1.52 @Wavelength 253.7 nm	Hg
Transmission, Visible	90 % @Wavelength 400 - 700 nm	Internal transmittance of 100% from 400-700 nm.
IR Transmittance	90 % @Wavelength 2500 - 2600 nm	Internal transmittance of 86% from 700-1700 nm.
UV Transmittance	<= 0.20 % @Wavelength 200 - 270 nm
	90 % @Wavelength 370 - 390 nm	Internal transmittance of 100% from 370-390 nm
Reflection Coefficient, Visible (0-1)	0.92 @Wavelength 587.6 nm	Reflection Factor P

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CSGT49 / 2038

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