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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF56B

Wavelength: µm
 (0.360 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.14933428-0.0111549297λ^{2}+0.0375191596λ^{-2}+0.000787288786λ^{-4}+2.9727118\text{×}10^{-05}λ^{-6}+7.44861477\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -9.87e-07 1.97e-08 -1.23e-10 8.59e-07 9.48e-10 0.252
nd: 1.806105
Vd: 33.286897
glass_code: 806333
glass_status: standard
density: 3.79 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.4e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8.6e-06 K-1
dPgF: 0.0013
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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