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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF76A

Wavelength: µm
 (0.360–2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{2.00079286λ^2}{λ^2-0.012959987}+\frac{1.53020671λ^2}{λ^2-131.107483}+\frac{0.289955307λ^2}{λ^2-0.057737977}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 4.09e-06 1.67e-08 -4.15e-11 1.04e-06 1.1e-09 0.255
nd: 1.850130
Vd: 30.012319
glass_code: 850300
density: 4.31 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6.4e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.6e-06 K-1
dPgF: 0.0052
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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