K-SK14 by Sumita
Standard
Rare
Environmentally Friendly
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) | 1.60311 |
|---|---|
| Abbe Number (Vd) | 60.7 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36 — 1.55 µm |
$$n(\lambda) = \sqrt{2.53139 - 0.0109563\,\lambda^2 + 0.0138035\,\lambda^{-2} + 0.000298039\,\lambda^{-4} - 6.2452 \times 10^{-6}\,\lambda^{-6} + 2.5686 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 5.7 |
|---|---|
| TCE 100/300°C (10-6/K) | 7.3 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[5.63 \times 10^{-7} + 2(2.16 \times 10^{-8})\,\Delta T + 3(-8.94 \times 10^{-11})\,\Delta T^2 + \frac{4.28 \times 10^{-7} + 2(2.18 \times 10^{-10})\,\Delta T}{\lambda - 0.16}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.44 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 3 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 4 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| BACD14 | Hoya | 1.60311 | 60.7 | |
| BSM14 | Ohara | 1.603112 | 60.704896 | |
| BSM51Y | Ohara | 1.603109 | 60.651225 | |
| S-BSM14 | Ohara | 1.603112 | 60.64108 | |
| H-ZK14 | CDGM | 1.60311 | 60.603787 | |
| N-SK14 | Schott | 1.60311 | 60.6 | |
| SK14 | Schott | 1.60311 | 60.596819 | |
| FCD600 | Hoya | 1.5941 | 60.47 | |
| BACD7 | Hoya | 1.607292 | 59.474776 | |
| H-ZK7 | CDGM | 1.613095 | 60.614383 |