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Optical constants of CDGM - QF (Light flint)
QF50GTI

Wavelength: µm
 (0.313–2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.31145759λ^2}{λ^2-0.00988576985}+\frac{0.840047425λ^2}{λ^2-102.880258}+\frac{0.132407269λ^2}{λ^2-0.047752793}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -2.74e-06 1.64e-08 -5.12e-11 8.26e-07 4.87e-10 0.234
nd: 1.581440
Vd: 40.885954
glass_code: 581409
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
dPgF: -0.0018
climatic_resistance: 2.0

Comments

i line glass

References

CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets

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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