RefractiveIndex.INFO

Refractive index database

Shelf

Book

Page

Optical constants of SUMITA - PSK (Dense phosphate crown)
K-PSKn2

Wavelength: µm
 (0.310 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.578886-0.010381408λ^{2}+0.014233563λ^{-2}+0.00012483021λ^{-4}+1.7477672\text{×}10^{-05}λ^{-6}-9.6204805\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -9.04e-06 1.1e-08 -2.48e-10 3.21e-07 4.56e-10 0.226
n_d: 1.61800
V_d: 63.4
glass_code: 618634
density: 3.63 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.9e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 9.9e-06 K-1
ΔP_gF: 0.0055
climatic_resistance: 1.0
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

External links


Glass

External links