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Optical constants of CDGM - TF (Special flint)
TF3

Wavelength: µm
 (0.320 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.54141593-0.0106607788λ^{2}+0.021716721λ^{-2}-0.000401848477λ^{-4}+0.000122475727λ^{-6}-4.7776413\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 5.03e-06 2.69e-08 -1.67e-10 5.52e-07 -6.81e-10 0.246
n_d: 1.612423
V_d: 44.093486
glass_code: 612441
density: 3.25 g/cm3
coefficient_of_thermal_expansion_1: 5.5e-06 K-1
coefficient_of_thermal_expansion_2: 6.4e-06 K-1
ΔP_gF: -0.0073
climatic_resistance: 4.0

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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