Patent ID: 11876105
Assignee: PHION TECHNOLOGIES CORP.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 0:
1. A laser light collecting assembly for a wireless power receiver, comprising:
a compound parabolic concentrator mirror having curved internal walls defining and connecting an inlet aperture to an outlet aperture, the inlet aperture being larger than the outlet aperture, the internal walls focusing a majority of laser light entering the inlet aperture to the outlet aperture;
an optical to electrical converter positioned adjacent to the outlet aperture and configured to receive laser light exiting the outlet aperture and to convert optical energy in the laser light to electrical power; and
an optical element configured to seal off the internal walls of the compound parabolic concentrator mirror from an external environment, wherein the optical element is a Fresnel lens having a positive focal length configured to concentrate the laser light entering the inlet aperture to the optical to electrical converter and wherein the Fresnel lens has an inner most surface with a negative focal length configured to diffuse light reflected out of the compound parabolic concentrator.