K-LCV161 by Sumita
Standard
Rare
Precision Molding
Environmentally Friendly
K-LCV161 by Sumita is a standard optical glass with a rare melt frequency. It transmits from 0.32 to 2.00 µm with an nd of 1.6182 and a Vd of 45.3. It has low thermal expansion (CTE of 5.0×10⁻⁶/K), average chemical resistance, and precision molding compatibility.
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) | 5.0 |
|---|---|
| TCE 100/300°C (10-6/K) | 6.7 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[1.17 \times 10^{-5} + 2(1.24 \times 10^{-8})\,\Delta T + 3(-2.65 \times 10^{-10})\,\Delta T^2 + \frac{6.56 \times 10^{-7} + 2(6.54 \times 10^{-10})\,\Delta T}{\lambda - 0.238}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Chemical Resistance
| Climatic Resistance | 2 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 4 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| ADF4 | Hoya | 1.612498 | 44.873885 | |
| C16-44 | Corning | 1.616002 | 44.416477 | |
| N-KZFS4HT | Schott | 1.61336 | 44.49 | |
| N-KZFS4 | Schott | 1.61336 | 44.49 | |
| C13-44 | Corning | 1.613394 | 44.386543 | |
| LAF45 | Hoya | 1.61396 | 44.29 | |
| ADF10 | Hoya | 1.613102 | 44.361138 | |
| E-ADF10 | Hoya | 1.6131 | 44.36 | |
| KZFS1 | Schott | 1.613099 | 44.339473 | |
| ADF40 | Hoya | 1.6134 | 44.290061 |