Optical constants of HIKARI - LaK (Lanthanum crown)
E-LAK7
Wavelength:
µm
(0.280–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.68241693-0.0118445415λ^{2}+0.016242269λ^{-2}+0.000303298585λ^{-4}-8.32486246\text{×}10^{-06}λ^{-6}+7.74390846\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 23.0 °C
nd: 1.651597
Vd: 58.543058
glass_code: 652585
glass_status: preferred
density: 3.3 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.1e-06 K-1
dPgF: -0.0039
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