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Optical constants of CDGM - LAF (Lanthanum flint)
D-LAF53

Wavelength: µm
 (0.280 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.97237085-0.0132859996λ^{2}+0.0235602874λ^{-2}+0.000319211658λ^{-4}+1.70425085\text{×}10^{-05}λ^{-6}-8.96802291\text{×}10^{-08}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 7.67e-06 2.36e-08 -1.95e-10 6.35e-07 3.67e-10 0.208
n_d: 1.743306
V_d: 49.335808
glass_code: 743493
glass_status: standard
density: 4.26 g/cm3
coefficient_of_thermal_expansion_1: 5.6e-06 K-1
coefficient_of_thermal_expansion_2: 7.2e-06 K-1
ΔP_gF: -0.01
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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