Optical constants of HIKARI - LaK (Lanthanum crown)
J-LAK09
Wavelength:
µm
(0.280–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.94471329-0.0139489672λ^{2}-0.000208989528λ^{4}+0.0221246396λ^{-2}+0.000296283761λ^{-4}+1.28986233\text{×}10^{-05}λ^{-6}-4.34524857\text{×}10^{-08}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 5.9241e-06 1.2992e-08 -2.1645e-12 5.8159e-07 6.1694e-10 0.17025
nd: 1.734000
Vd: 51.508682
density: 4.0 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 4.9e-06 K-1
dPgF: -0.0099
phosphate_resistance: 1.0
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