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Optical constants of SUMITA - GIR
K-GIR79

Wavelength: µm
 (0.350 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.3195074-0.0085801253λ^{2}+0.039978521λ^{-2}+0.0014465322λ^{-4}-3.0453007\text{×}10^{-05}λ^{-6}+7.8005005\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 7.61e-06 2.08e-08 -1.25e-10 1.18e-06 1.01e-09 0.239
n_d: 1.85588
V_d: 33.0
glass_code: 856330
density: 5.14 g/cm3
coefficient_of_thermal_expansion_1: 7.1e-06 K-1
coefficient_of_thermal_expansion_2: 8.3e-06 K-1
ΔP_gF: -0.0017
climatic_resistance: 1.0
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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