Schott WG295 Long Pass Filter

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Schott WG295 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, GG385, WG305, WG320
Key Words:	DIN LP295
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Physical Properties	Original Value	Comments

Density	2.51 g/cc

Chemical Properties	Original Value	Comments
Acid Class, SR	51.3
Alkali Class, AR	3.3
Stain Resistance Class, FR	3

Thermal Properties	Original Value	Comments
CTE, linear	3.80 µm/m-°C @Temperature -30.0 - 70.0 °C
	4.10 µm/m-°C @Temperature 20.0 - 300 °C
Transformation Temperature, Tg	557 °C
Glass Temperature Coefficient	0.020

Optical Properties	Original Value	Comments
Refractive Index	1.51 @Wavelength 1014 nm	Hg
	1.52 @Wavelength 587.6 nm	He
	1.54 @Wavelength 334.1 nm	Hg
Transmission, Visible	92 % @Wavelength 400 - 700 nm	Internal transmittance of 100% from 400-700 nm.
IR Transmittance	92 % @Wavelength 700 - 1600 nm	Internal transmittance of 100% from 700-1600 nm.
UV Transmittance	<= 0.060 % @Wavelength 200 - 270 nm
	92 % @Wavelength 360 - 390 nm	Internal transmittance of 100% from 360-390 nm
Reflection Coefficient, Visible (0-1)	0.93 @Wavelength 587.6 nm	Reflection Factor P

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CSGT47 / 2036

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