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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF53B

Wavelength: µm
 (0.350 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.25780649-0.0123377843λ^{2}+0.0355171622λ^{-2}+0.000705690228λ^{-4}+4.3498733\text{×}10^{-05}λ^{-6}+1.95613611\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 9.9e-06 2.08e-08 -8.84e-11 8.92e-07 6.66e-10 0.24
nd: 1.833996
Vd: 37.229136
glass_code: 834372
glass_status: standard
density: 4.54 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.9e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.2e-06 K-1
dPgF: -0.0041
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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