K-PG375(M) by Sumita
Preferred
Medium
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) | 1.53922 |
|---|---|
| Abbe Number (Vd) | 62.7 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36 — 1.55 µm |
$$n(\lambda) = \sqrt{2.33596 - 0.00770285\,\lambda^2 + 0.0118001\,\lambda^{-2} + 0.000208147\,\lambda^{-4} - 3.52417 \times 10^{-6}\,\lambda^{-6} + 3.12415 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 12.9 |
|---|---|
| TCE 100/300°C (10-6/K) | 16.0 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-1.51 \times 10^{-5} + 2(1.45 \times 10^{-9})\,\Delta T + 3(-9.02 \times 10^{-11})\,\Delta T^2 + \frac{5.44 \times 10^{-7} + 2(3.99 \times 10^{-10})\,\Delta T}{\lambda - 0.176}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 2.9 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 2 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 3 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| H-BAK3 | CDGM | 1.54678 | 62.776077 | |
| BK6 | Schott | 1.531129 | 62.150728 | |
| BSC6 | Hoya | 1.531128 | 62.075664 | |
| H-BAK4 | CDGM | 1.55248 | 63.36549 | |
| PCD3 | Hoya | 1.55232 | 63.424095 | |
| PSK3 | Schott | 1.552322 | 63.456253 | |
| N-PSK3 | Schott | 1.55232 | 63.46 | |
| BBO-E | Generic Birefringent | 1.552518 | 61.321496 | |
| H-BAK1 | CDGM | 1.53028 | 60.466139 | |
| L-PHL2 | Ohara | 1.5588 | 62.558541 |
Similar Glasses (Sumita)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| K-PG375 | Sumita | 1.5425 | 62.9 | |
| K-PBK60 | Sumita | 1.5274 | 62.3 | |
| K-PBK60(M) | Sumita | 1.52483 | 62.0 | |
| K-PBK50 | Sumita | 1.5225 | 62.3 | |
| K-PBK50(M) | Sumita | 1.52025 | 62.2 | |
| BAK2 | Sumita | 1.53996 | 59.7 | |
| K-PBK40 | Sumita | 1.5176 | 63.5 | |
| P-BK40 | Sumita | 1.5176 | 63.5 | |
| SK20 | Sumita | 1.55963 | 61.2 | |
| K-PSK11(M) | Sumita | 1.55985 | 61.0 |