FD14 by Hoya
Obsolete
Unknown
Environmentally Dangerous
FD14 by Hoya is an obsolete optical glass. It transmits from 0.36 to 1.55 µm with an nd of 1.761823 and a Vd of 26.552048. It has medium thermal expansion (CTE of 8.1×10⁻⁶/K), excellent 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
Thermal Properties
| TCE -30/70°C (10-6/K) | 8.1 |
|---|---|
| TCE 100/300°C (10-6/K) | 85.0 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[1.03061 \times 10^{-5} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | 0 |
| Acid Resistance | 2 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| PBH14W | Ohara | 1.761819 | 26.553651 | |
| PBH14 | Ohara | 1.761819 | 26.553651 | |
| ZF12 | CDGM | 1.761822 | 26.555686 | |
| SF14 | Schott | 1.76182 | 26.53 | |
| N-SF14 | Schott | 1.76182 | 26.53 | |
| TIH14 | Ohara | 1.761821 | 26.517966 | |
| S-TIH14 | Ohara | 1.761821 | 26.517885 | |
| K-SFLD14 | Sumita | 1.76182 | 26.5 | |
| SF14 | Sumita | 1.76182 | 26.5 | |
| H-ZF12 | CDGM | 1.76182 | 26.607986 |
Similar Glasses (Hoya)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| FD140 | Hoya | 1.76182 | 26.61 | |
| FDS5 | Hoya | 1.761804 | 26.914901 | |
| E-FD4L | Hoya | 1.7552 | 27.53 | |
| E-FD4 | Hoya | 1.7552 | 27.53 | |
| FD4 | Hoya | 1.755199 | 27.530242 | |
| FD41 | Hoya | 1.750839 | 27.686615 | |
| FF8 | Hoya | 1.75211 | 25.05 | |
| E-FD13 | Hoya | 1.74077 | 27.76 | |
| FD13 | Hoya | 1.740774 | 27.764991 | |
| FDS30 | Hoya | 1.784701 | 26.102957 |