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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF78B

Wavelength: µm
 (0.350 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.49322693-0.0132987683λ^{2}+0.0400277433λ^{-2}+0.000823139853λ^{-4}+3.93075178\text{×}10^{-05}λ^{-6}+2.86901814\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: -1.22e-06 1.45e-08 -2.51e-11 1.18e-06 6.04e-10 0.13
n_d: 1.900696
V_d: 37.053564
glass_code: 901371
density: 4.95 g/cm3
coefficient_of_thermal_expansion_1: 6.8e-06 K-1
coefficient_of_thermal_expansion_2: 8.6e-06 K-1
ΔP_gF: -0.0043
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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