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Optical constants of CDGM - QF (Light flint)
QF50

Wavelength: µm
 (0.310 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.4427964-0.00775720479λ^{2}+0.0201147743λ^{-2}+0.000157059447λ^{-4}+5.32738337\text{×}10^{-05}λ^{-6}-6.98910829\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -2.16e-06 1.73e-08 -7.29e-11 7.09e-07 7.84e-10 0.263
n_d: 1.581438
V_d: 40.895946
glass_code: 581409
glass_status: preferred
density: 3.23 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 9e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 1.11e-05 K-1
ΔP_gF: -0.0011

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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