K-CD35 by Sumita
Standard
Very 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) | 1.5805 |
|---|---|
| Abbe Number (Vd) | 34.8 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36 — 1.55 µm |
$$n(\lambda) = \sqrt{2.43398 - 0.00945572\,\lambda^2 + 0.0206817\,\lambda^{-2} + 0.0009193\,\lambda^{-4} - 3.85029 \times 10^{-5}\,\lambda^{-6} + 8.26073 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 8.3 |
|---|---|
| TCE 100/300°C (10-6/K) | 10.6 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-7.75 \times 10^{-6} + 2(1.35 \times 10^{-8})\,\Delta T + 3(-2.49 \times 10^{-10})\,\Delta T^2 + \frac{7.61 \times 10^{-7} + 2(9.55 \times 10^{-10})\,\Delta T}{\lambda - 0.276}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 2.62 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 2 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| FTM16 | Ohara | 1.592701 | 35.296315 | |
| S-FTM16 | Ohara | 1.592701 | 35.310075 | |
| FF5 | Hoya | 1.5927 | 35.45 | |
| TIFN5 | Schott | 1.593555 | 35.514529 | |
| KBR | Generic IR | 1.559967 | 31.977241 | |
| F14 | Schott | 1.601401 | 38.231923 | |
| PBM18Y | Ohara | 1.595509 | 38.767114 | |
| E-F5 | Hoya | 1.60342 | 38.01 | |
| H-F1 | CDGM | 1.60342 | 38.010877 | |
| PBM5 | Ohara | 1.60342 | 38.012915 |