USPTO Patent Granted for Optical Wireless Power Meter

ChangeBridge: Patent Grants - Power Supply (H02J)

Published March 24th, 2026

Detected March 25th, 2026

Summary

The USPTO has granted a patent (US12584788B2) to Wi-Charge Ltd. for an optical power meter designed for the safe operation of optical wireless power systems. The patent describes a system for measuring laser beam power using an opaque enclosure and specific optical components.

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What changed

The United States Patent and Trademark Office (USPTO) has granted patent US12584788B2 to Wi-Charge Ltd. for an "Optical power meter for safe operation of optical wireless power systems." The patent details a system comprising an opaque enclosure with an exit aperture, a beam splitter, a diffuser element, detector elements, and an absorber element to accurately measure laser beam power while ensuring safe operation of optical wireless power systems.

This patent grant represents a new intellectual property asset for Wi-Charge Ltd. and does not impose new regulatory obligations on other entities. Compliance officers should note this development as it pertains to the technology landscape in optical wireless power systems, particularly concerning safety and measurement standards. No immediate actions are required from regulated entities.

Source document (simplified)

← USPTO Patent Grants

Optical power meter for safe operation of optical wireless power systems

Grant US12584788B2 Kind: B2 Mar 24, 2026

Assignee

Wi-Charge Ltd.

Inventors

Eyal Conforti, Lior Golan, Omer Nahmias, Zohar Mills-Levin, Ran Sagi, Ortal Alpert, Ori Mor

Abstract

A system for measuring the power of a laser beam, comprising an essentially opaque enclosure, from which the laser beam is directed through an exit aperture. The enclosure contains a beam splitter configured to transmit a major part of the laser beam through the exit aperture, and to reflect a minor part of the laser beam; a diffuser element positioned such that the reflected minor part of the laser beam impinges thereon; at least one detector element in optical communication with the diffuser element, the detector element providing a signal in response to the diffused light of the minor part of the laser beam impinging thereon; and an absorber element positioned such that that part of any light entering the enclosure through the exit aperture and reflected by the beam splitter, impinges on the absorber element, and is essentially absorbed.