SK10 by Sumita

Obsolete Very Rare Environmentally Dangerous

SK10 by Sumita is an obsolete optical glass with a very rare melt frequency. It transmits from 0.31 to 2.00 µm with an nd of 1.6228 and a Vd of 56.9. It has average chemical resistance and dangerous environmental properties.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.27–2.0 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.27–2.0 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.310–2.000 µm
Optical Properties
Refractive Index (nd) 1.6228
Abbe Number (Vd) 56.9
Dispersion Formula Schott
Wavelength Range 0.27 — 2.0 µm
$$n(\lambda) = \sqrt{2.58822 - 0.00946304\,\lambda^2 + 0.0161073\,\lambda^{-2} + 0.000200192\,\lambda^{-4} + 7.67431 \times 10^{-6}\,\lambda^{-6} + 7.82501 \times 10^{-9}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) —
TCE 100/300°C (10-6/K) 7.9
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.66
Relative Cost —
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 —
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
SK10 Schott 1.622801 56.903777
BACD10 Hoya 1.622799 56.906336
E-BACD10 Hoya 1.6228 56.91
H-ZK10L CDGM 1.6228 56.913492
C23-57 Corning 1.622801 56.922436
N-SK10 Schott 1.62278 56.98
S-BSM10 Ohara 1.622799 57.052723
BSM10 Ohara 1.622799 57.063643
H-ZK10 CDGM 1.6221 56.709831
N-SK15 Schott 1.62296 58.02
Similar Glasses (Sumita)
Glass Manufacturer nd Vd Compare
SK15 Sumita 1.62299 58.1
K-SK15 Sumita 1.62299 58.1
SK1 Sumita 1.61025 56.5
K-SSK4 Sumita 1.61765 55.1
SSK4 Sumita 1.61765 55.1
K-VC79 Sumita 1.61035 57.9
VC79 Sumita 1.6097 57.8
SK2 Sumita 1.60738 56.7
K-VC79(M) Sumita 1.60737 57.2
SK9 Sumita 1.61405 55.1
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