Optical constants of HIKARI - LaK (Lanthanum crown)
Q-LAK53S
Wavelength:
µm
(0.280–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.81181751-0.0118938304λ^{2}-0.000165919133λ^{4}+0.0199255052λ^{-2}+0.000237580562λ^{-4}+1.29438052\text{×}10^{-05}λ^{-6}-1.59492635\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 2.78365e-06 1.10836e-08 1.54696e-12 5.96778e-07 5.26064e-10 0.184087
nd: 1.693430
Vd: 53.300774
density: 3.66 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.7e-06 K-1
dPgF: -0.0074
phosphate_resistance: 3.0
Comments
For mold lens
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