H-K5 by CDGM
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) | 1.510072 |
|---|---|
| Abbe Number (Vd) | 63.364525 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.365 — 1.014 µm |
$$n(\lambda) = \sqrt{2.25018 - 0.00894066\,\lambda^2 + 0.0114318\,\lambda^{-2} - 7.33393 \times 10^{-5}\,\lambda^{-4} + 3.49617 \times 10^{-5}\,\lambda^{-6} - 1.80101 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 7.5 |
|---|---|
| TCE 100/300°C (10-6/K) | 8.9 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-2.53 \times 10^{-7} + 2(1.48 \times 10^{-8})\,\Delta T + 3(-9.74 \times 10^{-12})\,\Delta T^2 + \frac{4.45 \times 10^{-7} + 2(7.77 \times 10^{-10})\,\Delta T}{\lambda - 0.202}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 2.47 |
|---|---|
| Relative Cost | 5.1 |
Mechanical Properties
| Young's Modulus (GPa) | 75.19 |
|---|---|
| Poisson's Ratio | 0.202 |
| Knoop Hardness (kgf/mm²) | 487.0 |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | — |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| BK1 | Sumita | 1.51009 | 63.4 | |
| BSC1 | Hoya | 1.510091 | 63.435118 | |
| BK1 | Schott | 1.510091 | 63.464788 | |
| B10-63 | Corning | 1.509992 | 63.551713 | |
| BSL1 | Ohara | 1.510091 | 63.635037 | |
| K-PBK40(M) | Sumita | 1.51497 | 63.3 | |
| AF32ECO | Schott | 1.511531 | 62.574031 | |
| S-BSL7R | Ohara | 1.51633 | 63.881689 | |
| P-BK40 | Sumita | 1.5176 | 63.5 | |
| K-PBK40 | Sumita | 1.5176 | 63.5 |
Similar Glasses (CDGM)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| D-K59-25 | CDGM | 1.51698 | 63.4085 | |
| D-K9GT-25 | CDGM | 1.51577 | 63.989637 | |
| D-K9-25 | CDGM | 1.51577 | 63.989637 | |
| D-K59 | CDGM | 1.5176 | 63.499991 | |
| D-K9 | CDGM | 1.51633 | 64.058952 | |
| D-K9GT | CDGM | 1.51633 | 64.058952 | |
| H-K9LAGT | CDGM | 1.5168 | 64.198695 | |
| H-K9LA | CDGM | 1.5168 | 64.198695 | |
| H-K9LGT | CDGM | 1.5168 | 64.198732 | |
| H-K9L | CDGM | 1.5168 | 64.198732 |