S-TIM5 by Ohara
Standard
Medium
Environmentally Friendly
S-TIM5 by Ohara is a standard optical glass with a medium melt frequency. It transmits from 0.36 to 2.40 µm with an nd of 1.60342 and a Vd of 38.027347. It has medium thermal expansion (CTE of 8.3×10⁻⁶/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) | 1.60342 |
|---|---|
| Abbe Number (Vd) | 38.027347 |
| Dispersion Formula | Sellmeier |
| Wavelength Range | 0.365015 — 2.32542 µm |
$$n(\lambda) = \sqrt{1 + \frac{1.38531\,\lambda^2}{\lambda^2 - 0.0104075} + \frac{0.122373\,\lambda^2}{\lambda^2 - 0.055744} + \frac{1.40508\,\lambda^2}{\lambda^2 - 144.879}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 8.3 |
|---|---|
| TCE 100/300°C (10-6/K) | — |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-4.74 \times 10^{-7} + 2(1.38 \times 10^{-8})\,\Delta T + 3(-3.81 \times 10^{-11})\,\Delta T^2 + \frac{7.33 \times 10^{-7} + 2(9.25 \times 10^{-10})\,\Delta T}{\lambda - 0.264}\right]
\Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
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 |
|---|---|---|---|---|
| F5 | Schott | 1.60342 | 38.03 | |
| F5 | Hoya | 1.603417 | 38.014872 | |
| F1 | CDGM | 1.603417 | 38.01487 | |
| H-F1 | CDGM | 1.60342 | 38.010877 | |
| E-F5 | Hoya | 1.60342 | 38.01 | |
| F5 | Sumita | 1.60342 | 38.0 | |
| C04-38 | Corning | 1.603499 | 38.110538 | |
| F15 | Hoya | 1.605651 | 37.899711 | |
| F14 | Schott | 1.601401 | 38.231923 | |
| F15 | Schott | 1.605651 | 37.830856 |
Similar Glasses (Ohara)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| PBM5 | Ohara | 1.60342 | 38.012915 | |
| PBM18Y | Ohara | 1.595509 | 38.767114 | |
| PBM8 | Ohara | 1.595508 | 39.213424 | |
| S-TIM8 | Ohara | 1.595509 | 39.242273 | |
| PBM8Y | Ohara | 1.595509 | 39.260208 | |
| S-TIM3 | Ohara | 1.612929 | 37.005342 | |
| PBM3 | Ohara | 1.612929 | 36.994096 | |
| PBM4 | Ohara | 1.616588 | 36.632973 | |
| BAM23 | Ohara | 1.607167 | 40.26316 | |
| PBM9 | Ohara | 1.620451 | 38.119955 |