RefractiveIndex.INFO

Refractive index database

Shelf

Book

Page

Optical constants of HIKARI - LaK (Lanthanum crown)
LAK7

Wavelength: µm
 (0.290 – 0.7)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.684146-0.01282175λ^{2}+0.01520999λ^{-2}+0.0005791021λ^{-4}-4.197895\text{×}10^{-05}λ^{-6}+2.32621\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
nd: 1.651599
Vd: 58.552980
glass_code: 652586
glass_status: preferred
density: 3.32 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.7e-06 K-1
dPgF: -0.0032

References

NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com)
See also HIKARI glass data sheets

Data

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

INFO

Hikari Glass Co., Ltd.

Hikari Glass Co., Ltd. is a Japanese glass maker, a subsidiary of Nikon Corp.

External links


Glass

External links