| Category | Ceramic , Glass , Filter , Optical |
| Manufacturer | Schott Glas Mainz |
| Trade Name | |
| Port | Ningbo port,China |
| Trade Terms | EXW, FOB, CFR, CIF |
| Payment Terms | L/C, T/T, PayPal |
| Download PDF | Schott GG420 Long Pass Filter.pdf |
| Price | EMAIL US sales@lookpolymers.com |
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 2.76 g/cc | 0.0997 lb/in³ |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 7.70 µm/m-°C <br>@Temperature -30.0 - 70.0 °C |
4.28 µin/in-°F <br>@Temperature -22.0 - 158 °F |
|
| 8.60 µm/m-°C <br>@Temperature 20.0 - 300 °C |
4.78 µin/in-°F <br>@Temperature 68.0 - 572 °F |
||
| Transformation Temperature, Tg | 586 °C | 1090 °F | |
| Glass Temperature Coefficient | 0.080 | 0.080 |
| Optical Properties | Metric | English | Comments |
|---|---|---|---|
| Refractive Index | 1.53 <br>@Wavelength 1014 nm |
1.53 <br>@Wavelength 1014 nm |
Hg |
| 1.54 <br>@Wavelength 587.6 nm |
1.54 <br>@Wavelength 587.6 nm |
He | |
| 1.56 <br>@Wavelength 435.8 nm |
1.56 <br>@Wavelength 435.8 nm |
Hg | |
| Transmission, Visible | <= 0.70 % <br>@Wavelength 400 - 410 nm |
<= 0.70 % <br>@Wavelength 400 - 410 nm |
|
| 90 % <br>@Wavelength 500 - 510 nm |
90 % <br>@Wavelength 500 - 510 nm |
Internal transmittance of 99% from 500-510 nm | |
| IR Transmittance | 91 % <br>@Wavelength 710 - 1600 nm |
91 % <br>@Wavelength 710 - 1600 nm |
Internal transmittance of 100% Â from 710-1600 nm. |
| UV Transmittance | 0.0010 % <br>@Wavelength 200 - 400 nm |
0.0010 % <br>@Wavelength 200 - 400 nm |
Internal transmittance of 0.001% from 200-400 nm. |
| Reflection Coefficient, Visible (0-1) | 0.90 | 0.90 |
| Chemical Properties | Metric | English | Comments |
|---|---|---|---|
| Acid Class, SR | 1 | 1 | |
| Alkali Class, AR | 2.3 | 2.3 | |
| Stain Resistance Class, FR | 0.0 | 0.0 |