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Optical constants of CDGM - K (Crown)
H-K3

Wavelength: µm
 (0.300 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.296004558λ^2}{λ^2-0.0185989847}+\frac{0.940420083λ^2}{λ^2-0.00513632873}+\frac{1.0056654λ^2}{λ^2-97.555431}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 2.53e-06 1.95e-08 -5.32e-11 4.02e-07 6.25e-10 0.12
nd: 1.504630
Vd: 64.720718
glass_code: 505647
density: 2.4 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 5.8e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 7e-06 K-1
dPgF: -0.0025
climatic_resistance: 1.0

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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