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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF1

Wavelength: µm
 (0.320 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.16228962-0.014206768λ^{2}+0.0294595374λ^{-2}+0.000212856988λ^{-4}+6.58725595\text{×}10^{-05}λ^{-6}-1.65992623\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 3.15e-06 1.76e-08 -6.68e-11 5.2e-07 1.18e-10 0.262
n_d: 1.801663
V_d: 44.282314
glass_code: 802443
density: 4.3 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.3e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.2e-06 K-1
ΔP_gF: -0.008
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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