FD11 by Hoya
Obsolete
Unknown
Environmentally Dangerous
FD11 by Hoya is an obsolete optical glass. It transmits from 0.37 to 1.55 µm with an nd of 1.784715 and a Vd of 25.704276. It has medium thermal expansion (CTE of 8.0×10⁻⁶/K), good 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) | 8.0 |
|---|---|
| TCE 100/300°C (10-6/K) | 93.0 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[1.03738 \times 10^{-5} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | 0 |
| Acid Resistance | 3 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| SF11 | Sumita | 1.78472 | 25.7 | |
| SF11W | Sumita | 1.78472 | 25.7 | |
| PBH11W | Ohara | 1.784718 | 25.712726 | |
| PBH11 | Ohara | 1.784718 | 25.712726 | |
| H-ZF13GT | CDGM | 1.78472 | 25.720045 | |
| H-ZF13 | CDGM | 1.78472 | 25.720045 | |
| S-TIH11 | Ohara | 1.784723 | 25.683446 | |
| N-SF11 | Schott | 1.78472 | 25.68 | |
| TIH11 | Ohara | 1.784723 | 25.677885 | |
| ZF13 | CDGM | 1.784724 | 25.754051 |
Similar Glasses (Hoya)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| FD110 | Hoya | 1.78472 | 25.72 | |
| FDS3 | Hoya | 1.7847 | 26.057653 | |
| FDS30 | Hoya | 1.784701 | 26.102957 | |
| FD60-W | Hoya | 1.80518 | 25.46 | |
| FD60 | Hoya | 1.80518 | 25.46 | |
| FD6 | Hoya | 1.805184 | 25.465194 | |
| FD14 | Hoya | 1.761823 | 26.552048 | |
| FD140 | Hoya | 1.76182 | 26.61 | |
| FDS5 | Hoya | 1.761804 | 26.914901 | |
| FD225 | Hoya | 1.80809 | 22.76 |