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Optical constants of CDGM - ZK (Dense crown)
D-ZK21-25

Wavelength: µm
 (0.280–2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{1.08777542λ^2}{λ^2-0.0143531981}+\frac{0.505694645λ^2}{λ^2+0.000448862561}+\frac{1.31533152λ^2}{λ^2-104.063333}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 4.26e-06 1.53e-08 -2.43e-11 4.86e-07 2.51e-10 0.199
nd: 1.623460
Vd: 58.115078
glass_code: 623581
density: 2.99 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6.1e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8.4e-06 K-1
dPgF: -0.0066
climatic_resistance: 1.0

Comments

anneal rate:25°C/h

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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