NSL2 by Ohara

Obsolete Unknown Environmentally Dangerous
Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.365–0.9 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.365–0.9 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.340–0.900 µm
Optical Properties
Refractive Index (nd) 1.516016
Abbe Number (Vd) 56.800755
Dispersion Formula Schott
Wavelength Range 0.365 — 0.9 µm
$$n(\lambda) = \sqrt{2.26412 - 0.00847512\,\lambda^2 + 0.012235\,\lambda^{-2} + 0.000194407\,\lambda^{-4} + 3.35321 \times 10^{-7}\,\lambda^{-6} + 3.83199 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 7.6
TCE 100/300°C (10-6/K) 9.0
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[3.4466 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 2.59
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
H-K8 CDGM 1.51602 56.794825
C2 Hoya 1.51602 56.771193
K4 Schott 1.518952 57.399398
K5G20 Schott 1.52344 56.76
KDP Generic Birefringent 1.509182 56.224997
B270 Schott 1.52308 58.571369
K10 Schott 1.50137 56.41
C10 Hoya 1.50137 56.296772
H-K51 CDGM 1.52307 58.639792
C12 Hoya 1.523073 58.640203
Similar Glasses (Ohara)
Glass Manufacturer nd Vd
S-NSL2 Ohara 1.516016 56.858179
S-FTL10 Ohara 1.501372 56.421009
FTL10 Ohara 1.501372 56.399833
NSL33 Ohara 1.514536 54.714595
S-NSL3 Ohara 1.518229 58.902057
NSL3 Ohara 1.518229 58.966406
NSL5 Ohara 1.522494 59.790926
S-NSL5 Ohara 1.522494 59.835417
NSL7 Ohara 1.511121 60.485793
BAL12 Ohara 1.539955 59.454008
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