Optical constants of HIKARI - LaK (Lanthanum crown)
J-LAK8
Wavelength:
µm
(0.280–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.87779172-0.0135972618λ^{2}-0.000208866139λ^{4}+0.0203518573λ^{-2}+0.000244901642λ^{-4}+1.23070041\text{×}10^{-05}λ^{-6}-1.32629677\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 3.48407e-06 8.89748e-09 4.99726e-13 6.52693e-07 7.80412e-10 8e-09
nd: 1.713000
Vd: 53.958770
density: 3.72 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 5.3e-06 K-1
dPgF: -0.0086
phosphate_resistance: 4.0
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