Optical constants of HIKARI - LaK (Lanthanum crown)
E-LAK011
Wavelength:
µm
(0.290 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.97199342-0.0152435249λ^{2}+0.0202061158λ^{-2}+0.000875252167λ^{-4}-7.67180744\text{×}10^{-05}λ^{-6}+4.84807195\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
λ_vacuum: false
temperature: 23.0 °C
n_d: 1.741000
V_d: 52.672087
glass_status: preferred
density: 4.19 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.7e-06 K-1
ΔP_gF: -0.01
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