Optical constants of HIKARI - LaK (Lanthanum crown)
LAK12
Wavelength:
µm
(0.290–0.7)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.780948-0.0236625λ^{2}+0.008676537λ^{-2}+0.00294181λ^{-4}-0.0003515541λ^{-6}+1.844065\text{×}10^{-05}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
nd: 1.677900
Vd: 55.397516
glass_code: 678554
glass_status: preferred
density: 4.0 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.6e-06 K-1
dPgF: -0.007
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