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Refractive index database

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Optical constants of SUMITA - CD
K-CD120(M)

Wavelength: µm
 (0.360 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.8398034-0.011893586λ^{2}+0.03115793λ^{-2}+0.0018504658λ^{-4}-0.00010451266λ^{-6}+1.6018658\text{×}10^{-05}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: -4.82e-06 1.79e-08 -2.28e-10 9.05e-07 2.82e-10 0.28
n_d: 1.71466
V_d: 29.6
glass_code: 723292
density: 3.01 g/cm3
coefficient_of_thermal_expansion_1: 9.2e-06 K-1
coefficient_of_thermal_expansion_2: 1.19e-05 K-1
ΔP_gF: 0.0096
acid_resistance: 1.0

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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