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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF3

Wavelength: µm
 (0.350 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.33260614-0.0142217301λ^{2}+0.0366299952λ^{-2}+0.00102037909λ^{-4}-3.17481272\text{×}10^{-06}λ^{-6}+5.76556277\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 3.1e-06 1.77e-08 -9.07e-11 8.88e-07 3.04e-10 0.222
nd: 1.855449
Vd: 36.598050
glass_code: 855366
density: 4.5 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.4e-06 K-1
dPgF: -0.0053
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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