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Optical constants of SUMITA - LaFK
K-LaFK60

Wavelength: µm
 (0.270 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.6248172-0.010251149λ^{2}+0.0143793λ^{-2}+0.00024017461λ^{-4}-1.041901\text{×}10^{-06}λ^{-6}+1.0237991\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: -9.6e-06 1.03e-08 -7.48e-11 3.87e-07 1.56e-10 0.188
n_d: 1.63246
V_d: 63.8
glass_code: 632638
density: 4.29 g/cm3
coefficient_of_thermal_expansion_1: 9.3e-06 K-1
coefficient_of_thermal_expansion_2: 1.14e-05 K-1
ΔP_gF: 0.0041
climatic_resistance: 1.0
acid_resistance: 5.0

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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