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Optical constants of SUMITA - ZnSF
K-ZnSF8(M)

Wavelength: µm
 (0.340 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.8508369-0.012006057λ^{2}+0.025904826λ^{-2}+0.0009056149λ^{-4}-2.8090015\text{×}10^{-05}λ^{-6}+4.695922\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 1.49e-05 1.99e-08 -2.6e-10 8.88e-07 7.78e-10 0.234
n_d: 1.71143
V_d: 38.9
glass_code: 714389
density: 3.72 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 4.9e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 6e-06 K-1
ΔP_gF: -0.0047
climatic_resistance: 2.0
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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