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Optical constants of HIKARI - KF (Crownflint)
J-KF6

Wavelength: µm
 (0.340 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.26653222-0.00974283829λ^{2}-8.49115572\text{×}10^{-05}λ^{4}+0.0127195343λ^{-2}+0.000315395806λ^{-4}-8.83703038\text{×}10^{-06}λ^{-6}+1.84064027\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 1.0458e-06 1.7479e-08 -2.0062e-12 4.8402e-07 3.8942e-10 0.23771
nd: 1.517420
Vd: 52.203782
density: 2.47 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6.8e-06 K-1
dPgF: 0.0011
phosphate_resistance: 1.0

References

NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com)
See also HIKARI glass data sheets

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

Hikari Glass Co., Ltd.

Hikari Glass Co., Ltd. is a Japanese glass maker, a subsidiary of Nikon Corp.

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