N-SK10 by Schott

Obsolete Unknown Environmentally Friendly

N-SK10 by Schott is an obsolete optical glass. It transmits from 0.33 to 2.50 µm with an nd of 1.62278 and a Vd of 56.98. It has medium thermal expansion (CTE of 6.83×10⁻⁶/K) and below average chemical resistance.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.334–2.5 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.334–2.5 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.334–2.500 µm
Optical Properties
Refractive Index (nd) 1.62278
Abbe Number (Vd) 56.98
Dispersion Formula Sellmeier
Wavelength Range 0.334 — 2.5 µm
$$n(\lambda) = \sqrt{1 + \frac{1.34972\,\lambda^2}{\lambda^2 - 0.00736272} + \frac{0.238588\,\lambda^2}{\lambda^2 - 0.0253765} + \frac{0.966734\,\lambda^2}{\lambda^2 - 103.503}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 6.83
TCE 100/300°C (10-6/K) 7.84
Thermal Conductivity (W/mK) 0.77
Heat Capacity (J/gK) 0.54
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[5.05 \times 10^{-7} + 2(1.16 \times 10^{-8})\,\Delta T + 3(-1.53 \times 10^{-11})\,\Delta T^2 + \frac{4.9 \times 10^{-7} + 2(5.1 \times 10^{-10})\,\Delta T}{\lambda - 0.183}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 3.639
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) 81.0
Poisson's Ratio 0.27
Knoop Hardness (kgf/mm²) 550.0
Chemical Resistance
Climatic Resistance 3
Stain Resistance 3
Acid Resistance 52
Alkali Resistance 2
Phosphate Resistance 2
Notes

inquiry glass

Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
C23-57 Corning 1.622801 56.922436
H-ZK10L CDGM 1.6228 56.913492
E-BACD10 Hoya 1.6228 56.91
S-BSM10 Ohara 1.622799 57.052723
BACD10 Hoya 1.622799 56.906336
SK10 Sumita 1.6228 56.9
BSM10 Ohara 1.622799 57.063643
H-ZK10 CDGM 1.6221 56.709831
K-SK15 Sumita 1.62299 58.1
SK15 Sumita 1.62299 58.1
Similar Glasses (Schott)
Glass Manufacturer nd Vd Compare
SK10 Schott 1.622801 56.903777
N-SK15 Schott 1.62296 58.02
SK15 Schott 1.62299 58.059722
SK6 Schott 1.61375 56.397311
SK1 Schott 1.61025 56.712386
SK8 Schott 1.611171 55.917724
P-SK60 Schott 1.61035 57.9
SSK4A Schott 1.61765 55.141867
SK2 Schott 1.607381 56.650108
N-SK2 Schott 1.60738 56.65
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