M-LAC130 by Hoya
Preferred
Very Common
Precision Molding
Environmentally Friendly
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) | 1.6935 |
|---|---|
| Abbe Number (Vd) | 53.2 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36501 — 1.5296 µm |
$$n(\lambda) = \sqrt{2.81341 - 0.0133245\,\lambda^2 + 0.0192787\,\lambda^{-2} + 0.000412445\,\lambda^{-4} - 9.94043 \times 10^{-6}\,\lambda^{-6} + 9.62202 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 6.5 |
|---|---|
| TCE 100/300°C (10-6/K) | 8.6 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[3.06 \times 10^{-6} + 2(7.53 \times 10^{-9})\,\Delta T + 3(-3.42 \times 10^{-11})\,\Delta T^2 + \frac{7.88 \times 10^{-7} + 2(1.05 \times 10^{-9})\,\Delta T}{\lambda - 4.45 \times 10^{-10}}\right]
\Delta T = T - T_0, \quad T_0 = 23\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.52 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | 4 |
| Acid Resistance | 4 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Notes
Glass for molded optics lens
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| P-LAK35 | Schott | 1.6935 | 53.2 | |
| S-LAL13 | Ohara | 1.693501 | 53.205327 | |
| L-LAL13 | Ohara | 1.6935 | 53.185799 | |
| LAL13 | Ohara | 1.693501 | 53.231566 | |
| D-LAK6 | CDGM | 1.69384 | 53.128245 | |
| K-VC80 | Sumita | 1.69384 | 53.1 | |
| LAKN13 | Schott | 1.693501 | 53.330054 | |
| D-LAK6-25 | CDGM | 1.69281 | 53.049215 | |
| H-LAK6A | CDGM | 1.6935 | 53.380441 | |
| LAK13 | Sumita | 1.6935 | 53.4 |