SSL2 by Ohara

Obsolete Unknown Environmentally Dangerous
Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.3–2.4 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.3–2.4 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.300–0.900 µm
Optical Properties
Refractive Index (nd) 1.529441
Abbe Number (Vd) 51.722557
Dispersion Formula Schott
Wavelength Range 0.3 — 2.4 µm
$$n(\lambda) = \sqrt{2.30069 - 0.00988226\,\lambda^2 + 0.013879\,\lambda^{-2} + 0.000163413\,\lambda^{-4} + 1.43933 \times 10^{-5}\,\lambda^{-6} - 9.33221 \times 10^{-8}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 5.4
TCE 100/300°C (10-6/K) 6.0
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[7.094 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) 2.57
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance 1
Alkali Resistance —
Phosphate Resistance 1
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd
KZF2 Sumita 1.52944 51.8
SBF2 Hoya 1.52944 51.643052
KZFN2 Schott 1.52944 51.626811
B29-52 Corning 1.528998 51.838713
KF4 Sumita 1.53358 51.6
CF4 Hoya 1.533577 51.545117
CF2 Hoya 1.526296 51.046045
N-KF9 Schott 1.52346 51.54
KF2 Sumita 1.5263 51.0
KF9 Schott 1.523412 51.492996
Similar Glasses (Ohara)
Glass Manufacturer nd Vd
SSL5 Ohara 1.521299 52.553447
NSL36 Ohara 1.517417 52.412251
S-NSL36 Ohara 1.517417 52.430903
FTL8 Ohara 1.511179 51.020607
PBL6Y Ohara 1.531717 48.956017
PBL6 Ohara 1.531717 48.904553
S-TIL6 Ohara 1.531717 48.840718
BAL5 Ohara 1.547393 53.550738
NSL33 Ohara 1.514536 54.714595
PBL2 Ohara 1.54072 47.23368
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