K-SK16RH by Sumita
Standard
Medium
Environmentally Friendly
K-SK16RH by Sumita is a standard optical glass with a medium melt frequency. It transmits from 0.28 to 2.00 µm with an nd of 1.62041 and a Vd of 60.3. It has low thermal expansion (CTE of 6.0×10⁻⁶/K) and below average chemical resistance.
Refractive Index vs Wavelength
Refractive Index Calculator
dn/dλ vs Wavelength
dn/dλ Calculator
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Optical Properties
Thermal Properties
| TCE -30/70°C (10-6/K) | 6.0 |
|---|---|
| TCE 100/300°C (10-6/K) | 7.2 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[3.39 \times 10^{-7} + 2(1.49 \times 10^{-8})\,\Delta T + 3(-2.68 \times 10^{-10})\,\Delta T^2 + \frac{3.99 \times 10^{-7} + 2(1.11 \times 10^{-9})\,\Delta T}{\lambda - 0.174}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Chemical Resistance
| Climatic Resistance | 2 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 5 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| S-BSM16 | Ohara | 1.620411 | 60.289582 | |
| N-SK16 | Schott | 1.62041 | 60.32 | |
| SK16 | Schott | 1.62041 | 60.323649 | |
| BSM16 | Ohara | 1.62041 | 60.271913 | |
| C20-60 | Corning | 1.620406 | 60.332956 | |
| H-ZK9B | CDGM | 1.62041 | 60.339343 | |
| BSM16C | Ohara | 1.62041 | 60.254106 | |
| H-TK9 | CDGM | 1.62075 | 60.299778 | |
| BACD16 | Hoya | 1.62041 | 60.35 | |
| SK51 | Schott | 1.6209 | 60.310926 |