Optical constants of HIKARI - LaK (Lanthanum crown)
E-LAK04
Wavelength:
µm
(0.4 – 0.7)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.6768086-0.0102173269λ^{2}+0.0177389501λ^{-2}+2.82247162\text{×}10^{-05}λ^{-4}+4.32740016\text{×}10^{-05}λ^{-6}-2.15847266\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
nd: 1.651000
Vd: 56.171366
glass_status: preferred
density: 3.26 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.1e-06 K-1
dPgF: -0.0012
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