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Optical constants of CDGM - QF (Light flint)
H-QF56

Wavelength: µm
 (0.350 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.40441893-0.00857629873λ^{2}+0.0176754574λ^{-2}+0.000438205807λ^{-4}-1.42198699\text{×}10^{-06}λ^{-6}+2.74287911\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -4.86e-06 1.38e-08 -3.64e-11 7.51e-07 4.38e-11 0.236
nd: 1.567320
Vd: 42.807794
glass_code: 567428
density: 2.62 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 9.4e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 1.11e-05 K-1
dPgF: 0.0015
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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