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Optical constants of CDGM - K (Crown)
H-K7

Wavelength: µm
 (0.290 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.25978818-0.00693885931λ^{2}+0.0134488547λ^{-2}-0.000405904363λ^{-4}+7.64411122\text{×}10^{-05}λ^{-6}-3.51928135\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -3.47e-06 1.04e-08 -1.23e-11 5.23e-07 2.98e-10 0.19
n_d: 1.514778
V_d: 60.607173
glass_code: 515606
density: 2.54 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.5e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 1e-05 K-1
ΔP_gF: 0.0008
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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