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Optical constants of CDGM - LAK (Lanthanum crown)
H-LAK53A

Wavelength: µm
 (0.280 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.01460463-0.0136968806λ^{2}+0.0241031658λ^{-2}-0.000167588963λ^{-4}+8.27221505\text{×}10^{-05}λ^{-6}-3.77703053\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 2.01e-06 2.11e-08 -1.25e-10 5.29e-07 -2.58e-10 0.194
n_d: 1.755002
V_d: 52.329298
glass_code: 755523
density: 4.39 g/cm3
coefficient_of_thermal_expansion_1: 6.1e-06 K-1
coefficient_of_thermal_expansion_2: 7.2e-06 K-1
ΔP_gF: -0.0088

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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