IRG15 by Generic IR

Standard Unknown Environmentally Friendly

IRG15 by Generic IR is a standard optical glass. It transmits from 0.36 to 3.30 µm with an nd of 1.534275 and a Vd of 55.700357. It has medium thermal expansion (CTE of 9.3×10⁻⁶/K).

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.365–3.303 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.365–3.303 µm
Abbe Number Calculator
Transmission vs Wavelength

No transmission data available.

Transmission Calculator
Valid wavelength range: 0.365–3.303 µm
Optical Properties
Refractive Index (nd) 1.534275
Abbe Number (Vd) 55.700357
Dispersion Formula Herzberger
Wavelength Range 0.365 — 3.303 µm
$$L = \frac{1}{\lambda^2 - 0.028} n(\lambda) = 1.5223 + 0.00423702\,L - 4.45082 \times 10^{-5}\,L^2 - 0.00272498\,\lambda^2 + 2.80678 \times 10^{-5}\,\lambda^4 - 2.99845 \times 10^{-6}\,\lambda^6$$
Thermal Properties
TCE -30/70°C (10-6/K) 9.3
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) 2.8
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
H-K12 CDGM 1.533589 55.469983
K5G20 Schott 1.52344 56.76
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ZK1 Schott 1.533149 57.980912
ZNC1 Hoya 1.533149 58.063515
K4 Schott 1.518952 57.399398
C2 Hoya 1.51602 56.771193
H-K8 CDGM 1.51602 56.794825
NSL2 Ohara 1.516016 56.800755
N-BALF5 Schott 1.54739 53.63
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Glass Manufacturer nd Vd Compare
IRGN6 Generic IR 1.589096 56.33564
IRG7 Generic IR 1.564424 43.736647
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F_SILICA Generic IR 1.458464 67.821433
GEO2 Generic IR 1.608459 41.728763
CALCITE Generic IR 1.658643 48.541403
IRG11 Generic IR 1.680932 44.434326
KBR Generic IR 1.559967 31.977241
SPINEL Generic IR 1.716226 60.607355
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