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Optical constants of HIKARI - SF (Dense flint)
J-SF4

Wavelength: µm
 (0.365 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.96384442-0.0122384397λ^{2}+0.0357090539λ^{-2}+0.00272484712λ^{-4}-0.000437315556λ^{-6}+0.000103210102λ^{-8}-1.04209554\text{×}10^{-05}λ^{-10}+5.02488681\text{×}10^{-07}λ^{-12}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -3.1795e-06 1.0311e-08 -1.2175e-12 1.0018e-06 1.5284e-09 0.28111
nd: 1.755200
Vd: 27.571110
density: 3.22 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.4e-06 K-1
dPgF: 0.0112
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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