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Optical constants of CDGM - LAF (Lanthanum flint)
D-LAF82L

Wavelength: µm
 (0.300 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.9384022-0.011000275λ^{2}+0.026895091λ^{-2}-0.00074423432λ^{-4}+0.00016294737λ^{-6}-7.3175367\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 9.22e-06 1.91e-08 -1.81e-11 3.77e-07 8.76e-10 0.292
nd: 1.734852
Vd: 48.782341
glass_code: 735488
density: 4.1 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.3e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7e-06 K-1
dPgF: -0.0104

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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