| Category | Ceramic , Glass , Filter , Optical |
| Manufacturer | Schott Glas Mainz |
| Trade Name | |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Schott BG39 Band Pass Filter.pdf |
| Price | EMAIL US sales@lookpolymers.com |
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 2.73 g/cc | 0.0986 lb/in³ |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 11.6 µm/m-°C @Temperature -30.0 - 70.0 °C |
6.44 µin/in-°F @Temperature -22.0 - 158 °F |
|
| 13.1 µm/m-°C @Temperature 20.0 - 300 °C |
7.28 µin/in-°F @Temperature 68.0 - 572 °F |
||
| Transformation Temperature, Tg | 321 °C | 610 °F |
| Optical Properties | Metric | English | Comments |
|---|---|---|---|
| Refractive Index | 1.54 @Wavelength 587.6 nm |
1.54 @Wavelength 587.6 nm |
He |
| 1.55 @Wavelength 404.7 nm |
1.55 @Wavelength 404.7 nm |
Hg | |
| Transmission, Visible | <= 1.0 % @Wavelength 660 - 700 nm |
<= 1.0 % @Wavelength 660 - 700 nm |
|
| 88 % @Wavelength 480 - 520 nm |
88 % @Wavelength 480 - 520 nm |
Internal transmittance of 97% from 490-520 nm | |
| IR Transmittance | 79 % @Wavelength 2200 nm |
79 % @Wavelength 2200 nm |
Internal transmittance of 87% at 2200 nm. |
| UV Transmittance | <= 4.0 % @Wavelength 200 - 320 nm |
<= 4.0 % @Wavelength 200 - 320 nm |
|
| 77 % @Wavelength 390 nm |
77 % @Wavelength 390 nm |
Internal transmittance of 85%at 390 nm | |
| Reflection Coefficient, Visible (0-1) | 0.91 | 0.91 |
| Chemical Properties | Metric | English | Comments |
|---|---|---|---|
| Acid Class, SR | 5.1 | 5.1 | |
| Alkali Class, AR | 3 | 3 | |
| Stain Resistance Class, FR | 0.0 | 0.0 |