Patent ID: 8471757

Claim:
A dielectric lens device comprising: (a) a dielectric lens; (b) a dielectric shell; and (c) a maintenance mechanism, wherein the dielectric lens has a focal length and is transparent to electromagnetic waves selected from one or more of the group consisting of electromagnetic waves of a first visible light wave band and a first radio wave band, and the dielectric shell is transparent to electromagnetic waves selected from one or more of the group consisting of electromagnetic waves of a second visible light wave band and a second radio wave band, wherein an inside of the dielectric shell is hollow, and the dielectric shell has a surface, wherein a radius of the surface is equal to the focal length of the dielectric lens, and the maintenance mechanism is disposed to position the dielectric shell and the dielectric lens so that the dielectric lens is included in an internal central part of the dielectric shell and so that the dielectric shell is locatable by the maintenance mechanism along the focal length of the dielectric lens.