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

Wavelength: µm
 (0.360 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.30457034-0.0157032075λ^{2}+0.0374207147λ^{-2}+0.00217455908λ^{-4}-0.000149305709λ^{-6}+1.85063226\text{×}10^{-05}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -2.69e-06 1.66e-08 -1.31e-10 9.42e-07 9.19e-10 0.249
n_d: 1.850260
V_d: 32.307713
glass_code: 850323
density: 4.22 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.6e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 9.2e-06 K-1
ΔP_gF: 0.0018
climatic_resistance: 1.0

References

CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)

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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