S-LAH60 by Ohara

Standard Very Common Environmentally Friendly

S-LAH60 by Ohara is a standard optical glass with a very common melt frequency. It transmits from 0.34 to 2.40 µm with an nd of 1.834 and a Vd of 37.160487. It has low thermal expansion (CTE of 5.6×10⁻⁶/K), average chemical resistance, and low relative cost.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.365015–2.32542 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.365015–2.32542 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.340–2.400 µm
Optical Properties
Refractive Index (nd) 1.834
Abbe Number (Vd) 37.160487
Dispersion Formula Sellmeier
Wavelength Range 0.365015 — 2.32542 µm
$$n(\lambda) = \sqrt{1 + \frac{1.95243\,\lambda^2}{\lambda^2 - 0.0106442} + \frac{0.3071\,\lambda^2}{\lambda^2 - 0.0456735} + \frac{1.56578\,\lambda^2}{\lambda^2 - 110.281}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 5.6
TCE 100/300°C (10-6/K) —
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[6.88 \times 10^{-6} + 2(1.25 \times 10^{-8})\,\Delta T + 3(-3.24 \times 10^{-11})\,\Delta T^2 + \frac{6.63 \times 10^{-7} + 2(7.1 \times 10^{-10})\,\Delta T}{\lambda - 0.271}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 4.43
Relative Cost 1.9
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance 1
Stain Resistance —
Acid Resistance 4
Alkali Resistance —
Phosphate Resistance 1
Notes

Recommended

Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
LASFN14 Sumita 1.834 37.2
H-ZLAF53BGT CDGM 1.834 37.210555
H-ZLAF53B CDGM 1.834 37.210555
K-LaSFn14 Sumita 1.834 37.3
N-LASF40 Schott 1.83404 37.3
M-NBFD10 Hoya 1.83441 37.29
MP-NBFD10-20 Hoya 1.83461 37.29
NBFD10 Hoya 1.834 37.34
NBFD40 Hoya 1.829 36.496616
LASF14A Schott 1.822226 37.454652
Similar Glasses (Ohara)
Glass Manufacturer nd Vd Compare
LAH60 Ohara 1.834 37.166863
S-LAH60MQ Ohara 1.833999 37.172099
S-LAH60V Ohara 1.833999 37.206855
L-LAH90 Ohara 1.8322 40.097595
L-LAH94 Ohara 1.860999 37.097767
L-LAH85V Ohara 1.854 40.378368
L-LAH85 Ohara 1.854 40.393284
L-LAH84P Ohara 1.81225 40.294279
S-LAH89 Ohara 1.8515 40.782269
S-LAH63Q Ohara 1.8044 39.580489
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