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Optical constants of CDGM - PK (Phosphate crown)
D-PK3

Wavelength: µm
 (0.300 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.29778839-0.00944743443λ^{2}+0.0107674711λ^{-2}-7.59126906\text{×}10^{-05}λ^{-4}+2.70221688\text{×}10^{-05}λ^{-6}-1.2965337\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -3.49e-06 1.52e-08 -7.04e-11 4.13e-07 3.57e-10 0.131
nd: 1.525006
Vd: 70.361017
glass_code: 525704
density: 2.65 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.1e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 9.8e-06 K-1
dPgF: 0.005
climatic_resistance: 2.0

References

CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

CDGM Glass Co., Ltd.

CDGM Glass Co., Ltd. is a leading optical glass supplier in China with a worldwile distribution network.

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