PBH1 by Ohara
Obsolete
Unknown
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) | 1.717362 |
|---|---|
| Abbe Number (Vd) | 29.513538 |
| Dispersion Formula | Sellmeier |
| Wavelength Range | 0.3 — 2.4 µm |
$$n(\lambda) = \sqrt{1 + \frac{1.55408\,\lambda^2}{\lambda^2 - 0.0120147} + \frac{0.289398\,\lambda^2}{\lambda^2 - 0.0532883} + \frac{1.06728\,\lambda^2}{\lambda^2 - 122.863}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 8.0 |
|---|---|
| TCE 100/300°C (10-6/K) | 8.9 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[1.076 \times 10^{-5} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right]
\Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 4.47 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | — |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 3 |
| Alkali Resistance | — |
| Phosphate Resistance | 2 |
Similar Glasses (Other Manufacturers)
Similar Glasses (Ohara)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| S-TIH1 | Ohara | 1.717362 | 29.518091 | |
| PBH18 | Ohara | 1.721506 | 29.243262 | |
| S-TIH18 | Ohara | 1.721507 | 29.23233 | |
| S-TIH20 | Ohara | 1.70585 | 30.244176 | |
| PBH10 | Ohara | 1.728249 | 28.4623 | |
| S-TIH10 | Ohara | 1.72825 | 28.460599 | |
| PBM35 | Ohara | 1.698947 | 30.121211 | |
| S-TIM35 | Ohara | 1.698947 | 30.127865 | |
| L-TIM28P | Ohara | 1.694529 | 30.655992 | |
| S-TIH3 | Ohara | 1.739998 | 28.296005 |