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Optical constants of CDGM - QF (Light flint)
H-QF56

Wavelength: µm
 (0.350 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.01193506λ^2}{λ^2-116.639064}+\frac{0.110711906λ^2}{λ^2-0.051103672}+\frac{1.29397308λ^2}{λ^2-0.00923739628}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -4.86e-06 1.38e-08 -3.64e-11 7.51e-07 4.38e-11 0.236
nd: 1.567320
Vd: 42.810117
glass_code: 567428
density: 2.62 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 9.4e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 1.11e-05 K-1
dPgF: 0.0028
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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