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Optical constants of CDGM - K (Crown)
H-K8

Wavelength: µm
 (0.310 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.26289162-0.00770544885λ^{2}+0.0130033906λ^{-2}-3.10393046\text{×}10^{-05}λ^{-4}+3.16686868\text{×}10^{-05}λ^{-6}-1.27242154\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 8.99e-07 1.86e-08 2.68e-12 5.14e-07 2.06e-10 0.246
nd: 1.516020
Vd: 56.810596
glass_code: 516568
density: 2.58 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.7e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 9.7e-06 K-1
dPgF: -0.0031
climatic_resistance: 2.0

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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