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Optical constants of CDGM - FK (Fluor crown)
H-FK61B

Wavelength: µm
 (0.290 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.21667349-0.00493991656λ^{2}+0.00915004725λ^{-2}-0.00012667557λ^{-4}+2.8243403\text{×}10^{-05}λ^{-6}-1.31517813\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -1.92e-05 2.56e-09 -5.85e-11 2.86e-07 4.13e-10 0.223
n_d: 1.496998
V_d: 81.594687
glass_code: 497816
density: 3.68 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 1.27e-05 K-1
  - temperature_range: 20 300 °C
    coefficient: 1.56e-05 K-1
ΔP_gF: 0.0286
climatic_resistance: 1.0

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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