RefractiveIndex.INFO

Refractive index database


Shelf

Book

Page

Optical constants of CDGM - QK (Light crown)
D-QK3L

Wavelength: µm
 (0.280 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.601737491λ^2}{λ^2-0.012574974}+\frac{0.858737004λ^2}{λ^2-92.3325663}+\frac{0.586761501λ^2}{λ^2-0.002687509}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -9.26e-06 1.71e-08 -1.54e-11 3.26e-07 5.95e-10 0.187
nd: 1.487490
Vd: 70.440487
glass_code: 487704
density: 2.43 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 9.1e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 1.01e-05 K-1
dPgF: 0.0035
climatic_resistance: 2.0

Comments

anneal rate:4℃/h

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