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Optical constants of CDGM - LAF (Lanthanum flint)
H-LAF50B

Wavelength: µm
 (0.300 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.07031881-0.0135921167λ^{2}+0.0258190179λ^{-2}-1.6644976\text{×}10^{-05}λ^{-4}+6.94966225\text{×}10^{-05}λ^{-6}-2.88382024\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 2.55e-06 1.98e-08 -2.57e-13 4.22e-07 -1.44e-10 0.256
n_d: 1.772501
V_d: 49.613485
glass_code: 773496
glass_status: standard
density: 4.24 g/cm3
coefficient_of_thermal_expansion_1: 5.8e-06 K-1
coefficient_of_thermal_expansion_2: 7.5e-06 K-1
ΔP_gF: -0.0097
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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