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Optical constants of SUMITA - PMK
K-PMK30

Wavelength: µm
 (0.280 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.2984199-0.0098977917λ^{2}+0.010454435λ^{-2}-1.1762246\text{×}10^{-05}λ^{-4}+2.220678\text{×}10^{-05}λ^{-6}-1.2212713\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 3.49e-07 1.51e-08 -7.35e-11 3.65e-07 5.07e-10 0.174
n_d: 1.52500
V_d: 70.4
glass_code: 525704
density: 2.6 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.3e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8.7e-06 K-1
ΔP_gF: 0.0062
climatic_resistance: 2.0
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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