Optical constants of HIKARI - LaK (Lanthanum crown)
E-LAK18
Wavelength:
µm
(0.280 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.93385862-0.0150347642λ^{2}+0.0198579837λ^{-2}+0.000500310675λ^{-4}-2.05752531\text{×}10^{-05}λ^{-6}+1.37499776\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
nd: 1.729157
Vd: 54.658831
glass_code: 729547
glass_status: preferred
density: 4.16 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.9e-06 K-1
dPgF: -0.0084
References
NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com)
See also HIKARI glass data sheets
Data
INFO
Hikari Glass Co., Ltd.
Hikari Glass Co., Ltd. is a Japanese glass maker, a subsidiary of Nikon Corp.External links
- Hikari Glass Co., Ltd. (in Japanese)
- Nikon