FC5 by Hoya
Standard
Rare
Environmentally Dangerous
FC5 by Hoya is a standard optical glass with a rare melt frequency. It transmits from 0.28 to 1.55 µm with an nd of 1.48749 and a Vd of 70.44. It has medium thermal expansion (CTE of 9.3×10⁻⁶/K), below average chemical resistance, and dangerous environmental properties.
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) | 1.48749 |
|---|---|
| Abbe Number (Vd) | 70.44 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36501 — 1.5296 µm |
$$n(\lambda) = \sqrt{2.18941 - 0.00990449\,\lambda^2 + 0.00864034\,\lambda^{-2} + 0.000222631\,\lambda^{-4} - 1.22919 \times 10^{-5}\,\lambda^{-6} + 5.93863 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 9.3 |
|---|---|
| TCE 100/300°C (10-6/K) | 10.2 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-6.6046 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right]
\Delta T = T - T_0, \quad T_0 = 23\,°\text{C}$$
Chemical Resistance
| Climatic Resistance | 5 |
|---|---|
| Stain Resistance | 5 |
| Acid Resistance | 5 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Notes
General glass Type
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| H-QK3L | CDGM | 1.48749 | 70.440487 | |
| H-QK3LGTI | CDGM | 1.48749 | 70.440487 | |
| D-QK3L | CDGM | 1.48749 | 70.440487 | |
| N-FK5 | Schott | 1.48749 | 70.41 | |
| FK5HTi | Schott | 1.48748 | 70.47 | |
| FK5 | Schott | 1.48749 | 70.405771 | |
| FK5 | Sumita | 1.48749 | 70.4 | |
| K-FK5 | Sumita | 1.48749 | 70.4 | |
| A87-70 | Corning | 1.487248 | 70.500557 | |
| S-FSL5Y | Ohara | 1.48749 | 70.354425 |
Similar Glasses (Hoya)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| PCS1 | Hoya | 1.517284 | 69.67869 | |
| PC1 | Hoya | 1.503779 | 66.88712 | |
| FC1 | Hoya | 1.470787 | 66.706713 | |
| BSC4 | Hoya | 1.50048 | 65.996466 | |
| BSC3 | Hoya | 1.498309 | 65.130542 | |
| FC3 | Hoya | 1.464502 | 65.767612 | |
| PC2 | Hoya | 1.51821 | 65.160509 | |
| BSC7 | Hoya | 1.5168 | 64.2 | |
| BSC1 | Hoya | 1.510091 | 63.435118 | |
| PC3 | Hoya | 1.52542 | 64.619542 |