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Optical constants of SUMITA - PSK (Dense phosphate crown)
K-PSK11

Wavelength: µm
 (0.310 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.4158701-0.0091407676λ^{2}+0.012869238λ^{-2}+0.0001991764λ^{-4}+2.7958423\text{×}10^{-06}λ^{-6}+8.1672946\text{×}10^{-08}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 3.62e-07 2e-08 -2.86e-11 4.27e-07 1.78e-10 0.218
nd: 1.56580
Vd: 61.0
glass_code: 566610
density: 3.08 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.2e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 9.3e-06 K-1
dPgF: 0.0036
climatic_resistance: 2.0
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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