Optical constants of HIKARI - BaK (Barium crown)
E-BAK1
Wavelength:
µm
(0.290–0.7)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.44353274-0.0161455184λ^{2}+0.00881927898λ^{-2}+0.00144687542λ^{-4}-0.000136331798λ^{-6}+6.03309808\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 23.0 °C
nd: 1.572500
Vd: 57.738955
glass_code: 572577
glass_status: preferred
density: 3.16 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.5e-06 K-1
dPgF: 0.0003
References
NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com)
See also HIKARI glass data sheets
Data
INFO
BAK1 optical glass
BAK1 is a very popular optical glass. Most glass makers produce this or very similar glass.BAK1 or similar glasses produced by different makers
| Maker | Glass |
|---|---|
| Schott | N-BAK1 |
| Hikari | E-BAK1 |
| Ohara | S-BAL11 |
| CDGM | H-BAK8 |
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