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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF50E

Wavelength: µm
 (0.310 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.17475472-0.0138702913λ^{2}+0.0278405909λ^{-2}+0.000351405611λ^{-4}+4.08115849\text{×}10^{-05}λ^{-6}-1.46429081\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 8.68e-07 1.85e-08 2.01e-12 7.5e-07 -5.01e-10 0.155
nd: 1.804009
Vd: 46.567682
glass_code: 804466
glass_status: standard
density: 4.44 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6.2e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.8e-06 K-1
dPgF: -0.0083
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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