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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF75A

Wavelength: µm
 (0.360–2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.50615126λ^2}{λ^2-102.994725}+\frac{2.18809221λ^2}{λ^2-0.0127716105}+\frac{0.297955776λ^2}{λ^2-0.0569661668}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -2.63e-06 1.36e-08 -3.31e-11 9.08e-07 1.12e-09 0.265
nd: 1.903660
Vd: 31.314970
glass_code: 904313
glass_status: standard
density: 4.56 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.3e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8.8e-06 K-1
dPgF: 0.0029
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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