LAM2 by Ohara

Obsolete Unknown Environmentally Friendly

LAM2 by Ohara is an obsolete optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.743997 and a Vd of 44.787528.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.334–2.325 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.334–2.325 µm
Abbe Number Calculator
Transmission vs Wavelength

No transmission data available.

Transmission Calculator
Valid wavelength range: 0.334–2.325 µm
Optical Properties
Refractive Index (nd) 1.743997
Abbe Number (Vd) 44.787528
Dispersion Formula Schott
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{2.96797 - 0.0113125\,\lambda^2 + 0.0248123\,\lambda^{-2} + 0.000677762\,\lambda^{-4} - 1.02783 \times 10^{-5}\,\lambda^{-6} + 2.19687 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) —
TCE 100/300°C (10-6/K) —
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) —
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance —
Alkali Resistance —
Phosphate Resistance —
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
D44-45 Corning 1.744001 44.818533
N-LAF2 Schott 1.74397 44.85
LAF2 Schott 1.744002 44.719972
LAF20 Hoya 1.744 44.872914
LAF2 Sumita 1.744 44.9
LAF2 Hoya 1.744 44.9
K-LaF2 Sumita 1.744 44.9
H-LAF3B CDGM 1.744 44.900027
K-VC174(M) Sumita 1.74578 45.1
K-VC174 Sumita 1.7485 45.3
Similar Glasses (Ohara)
Glass Manufacturer nd Vd Compare
S-LAM2 Ohara 1.743997 44.786431
LAM52 Ohara 1.72 43.705625
S-LAM52 Ohara 1.72 43.689812
S-LAM61 Ohara 1.720002 46.024571
LAM61 Ohara 1.720002 46.035166
LAM54 Ohara 1.756998 47.815604
S-LAM54 Ohara 1.756998 47.82317
LAM58 Ohara 1.72 41.989859
S-LAM58 Ohara 1.72 41.978463
L-LAM72 Ohara 1.733099 48.896607
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