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Optical constants of CDGM - LAF (Lanthanum flint)
H-LAF53

Wavelength: µm
 (0.300–2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.52005515λ^2}{λ^2-0.00746606502}+\frac{1.09140777λ^2}{λ^2-81.9422153}+\frac{0.452588708λ^2}{λ^2-0.0263954349}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 8.12e-06 1.8e-08 -3.55e-11 6.59e-07 7e-10 0.185
nd: 1.743300
Vd: 49.221808
glass_code: 743492
density: 4.16 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.5e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.3e-06 K-1
dPgF: -0.009
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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