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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
D-ZLAF50

Wavelength: µm
 (0.330 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.17013467-0.0130614687λ^{2}+0.0284367701λ^{-2}+0.000413884621λ^{-4}+2.91645398\text{×}10^{-05}λ^{-6}-3.26598959\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 4.59e-06 1.77e-08 -4.18e-11 8.47e-07 3.91e-10 0.15
n_d: 1.803373
V_d: 45.526021
glass_code: 803455
density: 4.89 g/cm3
coefficient_of_thermal_expansion_1: 6.2e-06 K-1
coefficient_of_thermal_expansion_2: 7.5e-06 K-1
ΔP_gF: -0.0105
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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