FCD705 by Hoya
Preferred
Very Common
Environmentally Dangerous
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) | 1.55032 |
|---|---|
| Abbe Number (Vd) | 75.5 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36501 — 1.5296 µm |
$$n(\lambda) = \sqrt{2.37428 - 0.00620144\,\lambda^2 + 0.010583\,\lambda^{-2} + 6.31007 \times 10^{-5}\,\lambda^{-4} + 8.19672 \times 10^{-6}\,\lambda^{-6} - 3.44244 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 12.2 |
|---|---|
| TCE 100/300°C (10-6/K) | 14.0 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-1.64 \times 10^{-5} + 2(-6.43 \times 10^{-10})\,\Delta T + 3(1.97 \times 10^{-11})\,\Delta T^2 + \frac{3.83 \times 10^{-7} + 2(2.95 \times 10^{-10})\,\Delta T}{\lambda - 0.0771}\right]
\Delta T = T - T_0, \quad T_0 = 23\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 4.09 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | 1 |
| Acid Resistance | 3 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Notes
Recommended glass type
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| H-FK55 | CDGM | 1.5502 | 75.224681 | |
| ULTRAN30 | Schott | 1.5483 | 74.244488 | |
| S-FPM3 | Ohara | 1.53775 | 74.703119 | |
| B42-73 | Corning | 1.542198 | 73.473057 | |
| S-FPM4 | Ohara | 1.52841 | 76.452824 | |
| B29-77 | Corning | 1.528554 | 76.961514 | |
| PK51A | Schott | 1.528554 | 76.975515 | |
| N-PK51 | Schott | 1.52855 | 76.98 | |
| K-PSK500 | Sumita | 1.55215 | 72.0 | |
| K-PSK500(M) | Sumita | 1.55 | 71.9 |
Similar Glasses (Hoya)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| FCD500 | Hoya | 1.55397 | 71.76 | |
| MP-FCD500-20 | Hoya | 1.55352 | 71.72 | |
| MC-FCD500-20 | Hoya | 1.55352 | 71.72 | |
| M-FCD500 | Hoya | 1.55332 | 71.69 | |
| FCD615 | Hoya | 1.57144 | 71.61 | |
| PCS1 | Hoya | 1.517284 | 69.67869 | |
| FCD515 | Hoya | 1.59282 | 68.62 | |
| FCD505 | Hoya | 1.59282 | 68.62 | |
| MP-FCD1-M20 | Hoya | 1.4969 | 81.51 | |
| MC-FCD1-M20 | Hoya | 1.4969 | 81.51 |