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Optical constants of SUMITA - PFK
K-PFK80

Wavelength: µm
 (0.270 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.2178347-0.0055966846λ^{2}+0.0083703747λ^{-2}+0.0001097485λ^{-4}-3.3983937\text{×}10^{-06}λ^{-6}+2.5836351\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: -1.91e-05 -2.54e-09 -5.06e-11 3.29e-07 5.19e-11 0.188
n_d: 1.49700
V_d: 81.5
glass_code: 497815
density: 3.6 g/cm3
coefficient_of_thermal_expansion_1: 1.34e-05 K-1
coefficient_of_thermal_expansion_2: 1.54e-05 K-1
ΔP_gF: 0.0296
climatic_resistance: 1.0
acid_resistance: 3.0

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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