IRGN6 by Generic IR

Standard Unknown Environmentally Friendly

IRGN6 by Generic IR is a standard optical glass. It transmits from 0.40 to 4.26 µm with an nd of 1.589096 and a Vd of 56.33564. It has low thermal expansion (CTE of 6.3×10⁻⁶/K).

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.4047–4.258 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.4047–4.258 µm
Abbe Number Calculator
Transmission vs Wavelength

No transmission data available.

Transmission Calculator
Valid wavelength range: 0.405–4.258 µm
Optical Properties
Refractive Index (nd) 1.589096
Abbe Number (Vd) 56.33564
Dispersion Formula Herzberger
Wavelength Range 0.4047 — 4.258 µm
$$L = \frac{1}{\lambda^2 - 0.028} n(\lambda) = 1.57575 + 0.00468056\,L - 5.25502 \times 10^{-5}\,L^2 - 0.00254948\,\lambda^2 - 2.84832 \times 10^{-5}\,\lambda^4 + 8.10937 \times 10^{-8}\,\lambda^6$$
Thermal Properties
TCE -30/70°C (10-6/K) 6.3
TCE 100/300°C (10-6/K) —
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 2.81
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 —
Notes

source: Schott Spec Sheet

Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
K-CSK158 Sumita 1.584 56.9
K-CSK158(M) Sumita 1.58157 56.7
ADC2 Hoya 1.596998 55.291198
BAC6 Hoya 1.574441 56.357089
SK13 Schott 1.591809 58.300621
BACD13 Hoya 1.59181 58.308789
N-SK2HT Schott 1.60738 56.65
N-SK2 Schott 1.60738 56.65
SK2 Schott 1.607381 56.650108
H-ZK50GT CDGM 1.60738 56.654511
Similar Glasses (Generic IR)
Glass Manufacturer nd Vd Compare
IRG15 Generic IR 1.534275 55.700357
CALCITE Generic IR 1.658643 48.541403
IRG7 Generic IR 1.564424 43.736647
GEO2 Generic IR 1.608459 41.728763
IRG11 Generic IR 1.680932 44.434326
SPINEL Generic IR 1.716226 60.607355
KCL Generic IR 1.490213 43.33857
MGO Generic IR 1.737505 53.505455
F_SILICA Generic IR 1.458464 67.821433
KBR Generic IR 1.559967 31.977241
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