Patent ID: 11917506
Assignee: nan
Field: Optics (Instruments)
Classification: CPC H  G  Y | IPC G  H

Claim 7:
8. The method of claim 6, further comprising forming each of the plurality of substantially-transparent particles of:
a spherical core formed of a first transparent dielectric material, the spherical core having a value of a physical diameter equal to a half wavelength of a first selected color of light component to be reflected by the substantially-transparent particle modified by a first refractive index of the first transparent dielectric material;
a plurality of material layers disposed radially outwardly from the spherical core, each of the plurality of material layers being formed of at least a second transparent dielectric material, and having a value of a physical thickness equal to a quarter wavelength of at least a second selected color of light component to be reflected by the substantially-transparent particle modified by a second refractive index of the at least the second transparent dielectric material; and
an outer coating comprised of another transparent dielectric material having a selected index of refraction of 2 or less, the outer coating having a thickness that substantially eliminates reflective interference between colors reflected by adjacent particles when in contact with one another.