Optical constants of HIKARI - LaK (Lanthanum crown)
LAK04
Wavelength:
µm
(0.320–0.7)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.676809-0.01021733λ^{2}+0.01773895λ^{-2}+2.822472\text{×}10^{-05}λ^{-4}+4.3274\text{×}10^{-05}λ^{-6}-2.158473\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 ℃
nd: 1.651000
Vd: 56.171381
glass_code: 651562
glass_status: preferred
density: 3.28 g/cm3
thermal_expansion:
- temperature_range: -30 70 ℃
coefficient: 8e-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