KCL by Generic IR

Standard Unknown Environmentally Friendly

KCL by Generic IR is a standard optical glass. It transmits from 0.20 to 20.00 µm with an nd of 1.490213 and a Vd of 43.33857.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.2–30.0 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.2–30.0 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.200–20.000 µm
Optical Properties
Refractive Index (nd) 1.490213
Abbe Number (Vd) 43.33857
Dispersion Formula Herzberger
Wavelength Range 0.2 — 30.0 µm
$$L = \frac{1}{\lambda^2 - 0.028} n(\lambda) = 1.4746 + 0.0050546\,L - 2.57481 \times 10^{-5}\,L^2 - 0.000178283\,\lambda^2 - 4.49595 \times 10^{-8}\,\lambda^4 - 2.07573 \times 10^{-11}\,\lambda^6$$
Thermal Properties
TCE -30/70°C (10-6/K) —
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) 1.98
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: ISP Optics data sheet (www.ispoptics.com)

Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
FTM8 Ohara 1.532565 45.914102
FF2 Hoya 1.532561 45.942878
LLF8 Sumita 1.53256 46.0
QF6 CDGM 1.531719 48.755584
LLF6 Schott 1.531719 48.762595
LLF2 Schott 1.540719 47.171344
QF8 CDGM 1.540718 47.198243
FEL2 Hoya 1.540718 47.198247
E-FEL2 Hoya 1.54072 47.2
LLF2 Sumita 1.54072 47.2
Similar Glasses (Generic IR)
Glass Manufacturer nd Vd Compare
IRG7 Generic IR 1.564424 43.736647
IRG15 Generic IR 1.534275 55.700357
KBR Generic IR 1.559967 31.977241
GEO2 Generic IR 1.608459 41.728763
IRGN6 Generic IR 1.589096 56.33564
CALCITE Generic IR 1.658643 48.541403
F_SILICA Generic IR 1.458464 67.821433
IRG11 Generic IR 1.680932 44.434326
CSBR Generic IR 1.69706 34.108015
MGO Generic IR 1.737505 53.505455
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