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Optical constants of SUMITA - CSK
K-CSK120

Wavelength: µm
 (0.310 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.4804566-0.01071977λ^{2}+0.0135632λ^{-2}+0.00034918608λ^{-4}-2.3041786\text{×}10^{-05}λ^{-6}+1.5937217\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 1.46e-06 1.54e-08 -2.77e-11 5.04e-07 3.24e-10 0.172
n_d: 1.58700
V_d: 59.6
glass_code: 587596
density: 3.0 g/cm3
coefficient_of_thermal_expansion_1: 7.2e-06 K-1
coefficient_of_thermal_expansion_2: 9.1e-06 K-1
ΔP_gF: -0.0031
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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