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Optical constants of HIKARI - FK (Fluor crown)
E-FKH1

Wavelength: µm
 (0.290 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.22025427-0.00513496818λ^{2}+0.00841587708λ^{-2}+5.4263553\text{×}10^{-05}λ^{-4}+7.61288219\text{×}10^{-06}λ^{-6}-4.89857441\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 23.0 °C
n_d: 1.497820
V_d: 82.515656
glass_code: 498825
glass_status: preferred
density: 3.87 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 1.53e-05 K-1
ΔP_gF: 0.0331

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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