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Optical constants of SUMITA - SK (Dense crown)
K-SK15

Wavelength: µm
 (0.290–2.000)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula

$$n^2=2.5918508-0.010567563λ^{2}+0.014411695λ^{-2}+0.00063226961λ^{-4}-5.7927037\text{×}10^{-05}λ^{-6}+3.4193172\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -1.08e-06 1.69e-08 -2.15e-10 4.4e-07 6.37e-10 0.19
nd: 1.62299
Vd: 58.1
glass_code: 623581
density: 3.67 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6.8e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8e-06 K-1
dPgF: -0.0023
climatic_resistance: 3.0
acid_resistance: 4.0

References

SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book

Data

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

INFO

SUMITA Optical Glass, Inc.

SUMITA Optical Glass, Inc. is a Japanese glass manufacturer

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