LAM55 by Ohara

Obsolete Unknown Environmentally Friendly

LAM55 by Ohara is an obsolete optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.762001 and a Vd of 40.100947.

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) 1.762001
Abbe Number (Vd) 40.100947
Dispersion Formula Schott
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{3.02118 - 0.0123113\,\lambda^2 + 0.0273555\,\lambda^{-2} + 0.00110315\,\lambda^{-4} - 5.07269 \times 10^{-5}\,\lambda^{-6} + 6.45721 \times 10^{-6}\,\lambda^{-8}}$$
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
H-LAF55 CDGM 1.762 40.105472
NBFD5 Hoya 1.762001 40.263213
LAFN9 Sumita 1.764 40.3
H-LAFL5 CDGM 1.75367 37.491665
LAF13 Schott 1.775507 37.836043
K-GIR140 Sumita 1.75106 43.1
NBFD6 Hoya 1.756702 36.345258
LAFN8 Schott 1.735197 41.590899
LAF22A Schott 1.781791 37.196288
H-LAF7 CDGM 1.78179 37.092107
Similar Glasses (Ohara)
Glass Manufacturer nd Vd Compare
S-LAM55 Ohara 1.762001 40.100176
L-LAM69 Ohara 1.73077 40.508156
S-NBH59 Ohara 1.766342 35.82343
S-NBH51 Ohara 1.749504 35.33248
S-LAM7 Ohara 1.749497 35.283397
LAM7 Ohara 1.749497 35.278026
LAH51 Ohara 1.785896 44.186159
S-LAH51 Ohara 1.785896 44.202637
S-LAM73 Ohara 1.7936 37.08945
S-LAM2 Ohara 1.743997 44.786431
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