S-TIH11 by Ohara
Standard
Common
Environmentally Friendly
S-TIH11 by Ohara is a standard optical glass with a common melt frequency. It transmits from 0.37 to 2.40 µm with an nd of 1.784723 and a Vd of 25.683446. It has medium thermal expansion (CTE of 8.9×10⁻⁶/K), excellent chemical resistance, and low relative cost.
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) | 1.784723 |
|---|---|
| Abbe Number (Vd) | 25.683446 |
| Dispersion Formula | Sellmeier |
| Wavelength Range | 0.404656 — 2.32542 µm |
$$n(\lambda) = \sqrt{1 + \frac{1.72677\,\lambda^2}{\lambda^2 - 0.012937} + \frac{0.324569\,\lambda^2}{\lambda^2 - 0.0618255} + \frac{2.65817\,\lambda^2}{\lambda^2 - 221.905}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 8.9 |
|---|---|
| TCE 100/300°C (10-6/K) | — |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-3.76 \times 10^{-6} + 2(1.17 \times 10^{-8})\,\Delta T + 3(-3.59 \times 10^{-11})\,\Delta T^2 + \frac{8.88 \times 10^{-7} + 2(1.27 \times 10^{-9})\,\Delta T}{\lambda - 0.308}\right]
\Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 1 |
| Alkali Resistance | — |
| Phosphate Resistance | 1 |
Notes
Recommended
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| N-SF11 | Schott | 1.78472 | 25.68 | |
| SF11W | Sumita | 1.78472 | 25.7 | |
| SF11 | Sumita | 1.78472 | 25.7 | |
| FD11 | Hoya | 1.784715 | 25.704276 | |
| FD110 | Hoya | 1.78472 | 25.72 | |
| H-ZF13 | CDGM | 1.78472 | 25.720045 | |
| H-ZF13GT | CDGM | 1.78472 | 25.720045 | |
| ZF13 | CDGM | 1.784724 | 25.754051 | |
| SF11 | Schott | 1.78472 | 25.76 | |
| D85-25 | Corning | 1.784752 | 25.799504 |
Similar Glasses (Ohara)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| TIH11 | Ohara | 1.784723 | 25.677885 | |
| PBH11 | Ohara | 1.784718 | 25.712726 | |
| PBH11W | Ohara | 1.784718 | 25.712726 | |
| PBH23W | Ohara | 1.784702 | 26.216753 | |
| PBH23 | Ohara | 1.784702 | 26.216753 | |
| S-TIH23 | Ohara | 1.784696 | 26.291221 | |
| TIH23 | Ohara | 1.784696 | 26.29817 | |
| S-NPH7 | Ohara | 1.7783 | 23.911598 | |
| PBH6W | Ohara | 1.805177 | 25.435012 | |
| PBH6 | Ohara | 1.805177 | 25.435012 |