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

Wavelength: µm
 (0.300 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.96765171-0.0109098989λ^{2}+0.0265455309λ^{-2}-0.000515952248λ^{-4}+0.000124492897λ^{-6}-5.16337751\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 7.84e-06 1.78e-08 -1.78e-11 6.13e-07 7.28e-10 0.217
n_d: 1.743305
V_d: 49.238028
glass_code: 743492
glass_status: standard
density: 4.16 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.5e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.3e-06 K-1
ΔP_gF: -0.0109
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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