HWS1 by CDGM
Standard
Rare
Environmentally Dangerous
HWS1 by CDGM is a standard optical glass with a rare melt frequency. It transmits from 1.30 to 15.50 µm. It has very high thermal expansion (CTE of 15.2×10⁻⁶/K), extreme relative cost, 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) | 15.2 |
|---|---|
| TCE 100/300°C (10-6/K) | — |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | 0.33 |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[5.77 \times 10^{-5} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Chemical Resistance
| Climatic Resistance | — |
|---|---|
| Stain Resistance | — |
| Acid Resistance | — |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Notes
Infrared optical glass