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Optical constants of SUMITA - PSK (Dense phosphate crown)
K-PSK300(M)

Wavelength: µm
 (0.280 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.5141824-0.0093945858λ^{2}+0.012823443λ^{-2}+0.00025005056λ^{-4}-3.928511\text{×}10^{-06}λ^{-6}+4.4650519\text{×}10^{-08}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -1.33e-05 1.14e-08 -3e-11 4.03e-07 3.8e-10 0.173
n_d: 1.59690
V_d: 65.3
glass_code: 600656
density: 3.49 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 1.05e-05 K-1
  - temperature_range: 20 300 °C
    coefficient: 1.28e-05 K-1
ΔP_gF: 0.0067
climatic_resistance: 2.0
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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