RefractiveIndex.INFO

Refractive index database


Shelf

Book

Page

Optical constants of CDGM - FK (Fluor crown)
H-FK61

Wavelength: µm
 (0.280 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.502504076λ^2}{λ^2-0.00132743798}+\frac{0.715240076λ^2}{λ^2-0.0108378966}+\frac{0.836628986λ^2}{λ^2-155.933755}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -2.07e-05 -3.7e-10 -2.32e-11 3.49e-07 2.63e-10 0.18
nd: 1.497000
Vd: 81.612838
glass_code: 497816
glass_status: standard
density: 3.7 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 1.31e-05 K-1
  - temperature_range: 20 300 ℃
    coefficient: 1.57e-05 K-1
dPgF: 0.0312
climatic_resistance: 1.0

References

CDGM Zemax catalog 2022-06 (obtained from http://www.cdgmgd.com)
See also CDGM optical glass data sheets

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.

External links


Glass

External links