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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF71

Wavelength: µm
 (0.360 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.276154598λ^2}{λ^2-0.0557996382}+\frac{2.02569085λ^2}{λ^2-0.0120700588}+\frac{1.44513509λ^2}{λ^2-99.8778223}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -2.79e-06 1.48e-08 -2.75e-11 8e-07 8.15e-10 0.275
nd: 1.850260
Vd: 32.297288
glass_code: 850323
density: 4.22 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 7.6e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 9.2e-06 K-1
dPgF: 0.0024
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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