K-CD300 by Sumita
Standard
Rare
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) | 1.6922 |
|---|---|
| Abbe Number (Vd) | 29.6 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36 — 1.55 µm |
$$n(\lambda) = \sqrt{2.76607 - 0.0103403\,\lambda^2 + 0.0306133\,\lambda^{-2} + 0.00160161\,\lambda^{-4} - 8.41959 \times 10^{-5}\,\lambda^{-6} + 1.40133 \times 10^{-5}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 11.9 |
|---|---|
| TCE 100/300°C (10-6/K) | 14.1 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-1.13 \times 10^{-5} + 2(2.13 \times 10^{-9})\,\Delta T + 3(-3.3 \times 10^{-10})\,\Delta T^2 + \frac{9.62 \times 10^{-7} + 2(1.2 \times 10^{-9})\,\Delta T}{\lambda - 0.275}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 2.78 |
|---|---|
| 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 | |
|---|---|---|---|---|
| H-ZF11 | CDGM | 1.69894 | 30.05045 | |
| FD15 | Hoya | 1.698945 | 30.050548 | |
| E-FD15 | Hoya | 1.69895 | 30.05 | |
| E-FD15L | Hoya | 1.69895 | 30.05 | |
| ZF11 | CDGM | 1.698949 | 30.065686 | |
| SF15 | Schott | 1.69895 | 30.07 | |
| C99-30 | Corning | 1.699002 | 30.107427 | |
| PBM35 | Ohara | 1.698947 | 30.121211 | |
| S-TIM35 | Ohara | 1.698947 | 30.127865 | |
| N-SF15 | Schott | 1.69892 | 30.2 |
Similar Glasses (Sumita)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| K-CD300(M) | Sumita | 1.68558 | 29.9 | |
| SF15 | Sumita | 1.69895 | 30.0 | |
| K-SFLD8 | Sumita | 1.68893 | 31.1 | |
| K-SFLD8W | Sumita | 1.6891 | 31.2 | |
| SF8 | Sumita | 1.68893 | 31.2 | |
| K-CD120(M) | Sumita | 1.71466 | 29.6 | |
| SF1 | Sumita | 1.71736 | 29.5 | |
| K-SFLD1 | Sumita | 1.71736 | 29.5 | |
| SF5 | Sumita | 1.6727 | 32.2 | |
| SFN1 | Sumita | 1.72022 | 29.3 |