K-SKLD5 by Sumita
Preferred
Medium
Precision Molding
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) | 1.58913 |
|---|---|
| Abbe Number (Vd) | 61.2 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36 — 1.55 µm |
$$n(\lambda) = \sqrt{2.48882 - 0.01193\,\lambda^2 + 0.0133469\,\lambda^{-2} + 0.000260341\,\lambda^{-4} - 1.07721 \times 10^{-5}\,\lambda^{-6} + 7.91172 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 5.8 |
|---|---|
| TCE 100/300°C (10-6/K) | 8.2 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[3.98 \times 10^{-6} + 2(1.39 \times 10^{-8})\,\Delta T + 3(-1.21 \times 10^{-10})\,\Delta T^2 + \frac{4.51 \times 10^{-7} + 2(4.91 \times 10^{-10})\,\Delta T}{\lambda - 0.177}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 2.67 |
|---|---|
| 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 | |
|---|---|---|---|---|
| BAL35 | Ohara | 1.58913 | 61.182174 | |
| B89-61 | Corning | 1.588998 | 61.218914 | |
| BAL35Y | Ohara | 1.58913 | 61.233033 | |
| D-ZK3 | CDGM | 1.58913 | 61.152901 | |
| L-BAL35 | Ohara | 1.58913 | 61.152601 | |
| M-BACD5N | Hoya | 1.58913 | 61.25 | |
| MC-BACD5N | Hoya | 1.58913 | 61.25 | |
| BACD5 | Hoya | 1.58913 | 61.25 | |
| MP-BACD5N | Hoya | 1.58913 | 61.25 | |
| P-SK58A | Schott | 1.58913 | 61.15 |
Similar Glasses (Sumita)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| SK5 | Sumita | 1.58913 | 61.2 | |
| K-SK5 | Sumita | 1.58913 | 61.2 | |
| K-SKLD5(M) | Sumita | 1.58606 | 61.0 | |
| K-SKLD100 | Sumita | 1.5911 | 60.7 | |
| P-SK100 | Sumita | 1.5917 | 60.7 | |
| K-PSK100 | Sumita | 1.5917 | 60.7 | |
| K-PSK100(M) | Sumita | 1.58792 | 60.6 | |
| P-SK50 | Sumita | 1.5938 | 61.4 | |
| K-SKLD100(M) | Sumita | 1.58773 | 60.4 | |
| P-SK60 | Sumita | 1.59087 | 62.3 |