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Optical constants of CDGM - FK (Fluor crown)
H-KF6

Wavelength: µm
 (0.340 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.0736995941λ^2}{λ^2-0.0478548878}+\frac{1.19277164λ^2}{λ^2-0.00781132706}+\frac{1.01749455λ^2}{λ^2-104.241959}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -5.94e-07 1.77e-08 -1.13e-10 5.53e-07 9.82e-10 0.212
nd: 1.517420
Vd: 52.149249
glass_code: 517522
density: 2.47 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 7e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 8.8e-06 K-1
dPgF: 0.0022
climatic_resistance: 1.0

References

CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

CDGM Glass Co., Ltd.

CDGM Glass Co., Ltd. is a leading optical glass supplier in China with a worldwile distribution network.

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