RefractiveIndex.INFO

Refractive index database


Shelf

Book

Page

Optical constants of CDGM - LAF (Lanthanum flint)
D-LAF79-25

Wavelength: µm
 (0.340 – 2.400)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{0.244124156λ^2}{λ^2-0.0430784572}+\frac{1.39592511λ^2}{λ^2-113.324709}+\frac{1.66977539λ^2}{λ^2-0.00964211165}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
nd: 1.729860
Vd: 40.497566
glass_code: 730405
density: 3.21 g/cm3
thermal_expansion:
  - temperature_range: -30 70 ℃
    coefficient: 9e-06 K-1
  - temperature_range: 20 300 ℃
    coefficient: 1.11e-05 K-1
dPgF: -0.0049
climatic_resistance: 3.0

Comments

anneal rate:25℃/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