SSK1 by Sumita
Obsolete
Very Rare
Environmentally Dangerous
SSK1 by Sumita is an obsolete optical glass with a very rare melt frequency. It transmits from 0.32 to 2.00 µm with an nd of 1.6172 and a Vd of 54.0. It has average chemical resistance and dangerous environmental properties.
Refractive Index vs Wavelength
Refractive Index Calculator
dn/dλ vs Wavelength
dn/dλ Calculator
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Optical Properties
| Refractive Index (nd) | 1.6172 |
|---|---|
| Abbe Number (Vd) | 54.0 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.27 — 2.0 µm |
$$n(\lambda) = \sqrt{2.56722 - 0.00858307\,\lambda^2 + 0.0172733\,\lambda^{-2} + 2.09726 \times 10^{-5}\,\lambda^{-4} + 4.00812 \times 10^{-5}\,\lambda^{-6} - 1.60603 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 4 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| BSM21 | Ohara | 1.617196 | 54.040511 | |
| BACED1 | Hoya | 1.617203 | 53.945664 | |
| S-BSM21 | Ohara | 1.617195 | 54.062144 | |
| H-ZK20 | CDGM | 1.6172 | 53.913743 | |
| SSK1 | Schott | 1.617201 | 53.912403 | |
| N-SSK2 | Schott | 1.62229 | 53.27 | |
| BSM24 | Ohara | 1.617646 | 55.049782 | |
| BSM9 | Ohara | 1.614047 | 54.971106 | |
| BSM22 | Ohara | 1.622296 | 53.186644 | |
| S-BSM9 | Ohara | 1.614047 | 54.990097 |