FD300 by Hoya
Preferred
Very Common
Environmentally Dangerous
FD300 by Hoya is a preferred optical glass with a very common melt frequency. It transmits from 0.37 to 2.50 µm with an nd of 1.62423 and a Vd of 30.05. It has high thermal expansion (CTE of 12.7×10⁻⁶/K), 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
Thermal Properties
| TCE -30/70°C (10-6/K) | 12.7 |
|---|---|
| TCE 100/300°C (10-6/K) | 16.8 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-1.55 \times 10^{-5} + 2(-2.18 \times 10^{-9})\,\Delta T + 3(-3.56 \times 10^{-11})\,\Delta T^2 + \frac{1.01 \times 10^{-6} + 2(1.07 \times 10^{-9})\,\Delta T}{\lambda - 0.298}\right]
\Delta T = T - T_0, \quad T_0 = 23\,°\text{C}$$
Chemical Resistance
| Climatic Resistance | 2 |
|---|---|
| Stain Resistance | 3 |
| Acid Resistance | 2 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Notes
Recommended glass type
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| TIF6 | Schott | 1.616501 | 30.973483 | |
| H-F52 | CDGM | 1.61385 | 34.604703 | |
| H-F51 | CDGM | 1.6398 | 34.46457 | |
| S-TIM27 | Ohara | 1.639799 | 34.466422 | |
| PBM27 | Ohara | 1.639799 | 34.477127 | |
| S-TIM22 | Ohara | 1.647689 | 33.792803 | |
| PBM22 | Ohara | 1.647689 | 33.802937 | |
| N-SF2 | Schott | 1.64769 | 33.82 | |
| ZF1 | CDGM | 1.647693 | 33.836872 | |
| H-ZF1 | CDGM | 1.64769 | 33.840317 |