Optical constants of CDGM - QK (Light crown)
H-QK1
Wavelength:
µm
(0.280–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{0.841944073λ^2}{λ^2-93.2638704}+\frac{0.991785467λ^2}{λ^2-0.0103998728}+\frac{0.146213376λ^2}{λ^2+0.00820300741}$$Conditions & Spec sheet
n_absolute: false wavelength_vacuum: false temperature: 20.0 ℃ thermal_dispersion: - type: "Schott formula" coefficients: -4.33e-06 2.75e-08 -4.55e-11 2.96e-07 -7.4e-10 0.257 nd: 1.470470 Vd: 66.876032 glass_code: 470669 density: 2.3 g/cm3 thermal_expansion: - temperature_range: -30 70 ℃ coefficient: 7.3e-06 K-1 - temperature_range: 20 300 ℃ coefficient: 8.5e-06 K-1 dPgF: 0.0005 climatic_resistance: 3.0
References
CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets