| Category | Ceramic , Glass , Filter , Optical |
| Manufacturer | Schott Glas Mainz |
| Trade Name | |
| Port | Shanghai port,China |
| Trade Terms | EXW, FOB, CFR, CIF |
| Payment Terms | L/C, T/T, PayPal |
| Download PDF | Schott NG12 Neutral Density Filter.pdf |
| Price | EMAIL US sales@lookpolymers.com |
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 2.34 g/cc | 0.0845 lb/in³ |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 5.90 µm/m-°C <br>@Temperature -30.0 - 70.0 °C |
3.28 µin/in-°F <br>@Temperature -22.0 - 158 °F |
|
| 6.40 µm/m-°C <br>@Temperature 20.0 - 300 °C |
3.56 µin/in-°F <br>@Temperature 68.0 - 572 °F |
||
| Transformation Temperature, Tg | 460 °C | 860 °F |
| Optical Properties | Metric | English | Comments |
|---|---|---|---|
| Refractive Index | 1.48 <br>@Wavelength 1014 nm |
1.48 <br>@Wavelength 1014 nm |
Hg |
| 1.49 <br>@Wavelength 587.6 nm |
1.49 <br>@Wavelength 587.6 nm |
He | |
| 1.50 <br>@Wavelength 404.7 nm |
1.50 <br>@Wavelength 404.7 nm |
Hg | |
| Transmission, Visible | 89 % <br>@Wavelength 460 - 700 nm |
89 % <br>@Wavelength 460 - 700 nm |
Internal transmittance of 95-96% from 430-700 nm. |
| IR Transmittance | 86 % <br>@Wavelength 1400 - 2300 nm |
86 % <br>@Wavelength 1400 - 2300 nm |
Internal transmittance of 92-93% from 1400-2300 nm. |
| UV Transmittance | <= 1.0 % <br>@Wavelength 200 - 310 nm |
<= 1.0 % <br>@Wavelength 200 - 310 nm |
|
| 86 % <br>@Wavelength 390 nm |
86 % <br>@Wavelength 390 nm |
Internal transmittance of 93% at 390 nm | |
| Reflection Coefficient, Visible (0-1) | 0.93 | 0.93 |
| Chemical Properties | Metric | English | Comments |
|---|---|---|---|
| Acid Class, SR | 51.4 | 51.4 | |
| Alkali Class, AR | 2 | 2 | |
| Stain Resistance Class, FR | 4 | 4 |