Wireless power transmission device and method
US10992186B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2017 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Aug 3, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2003/0093
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present specification discloses a wireless power transmission device and method thereof. Here, the wireless power transmission device according to an embodiment of the present invention includes: a laser light source unit; a light output unit which emits laser light generated from the laser light source to a light receiving unit of the wireless power receiving device; and a control unit which controls shaping of the emitted light according to the angle of arrival with the light receiving unit so that an overfill loss is less than a predetermined threshold value. Here, the control unit detects the point at which the power conversion efficiency of the light receiving unit is highest, and sets and controls the power density value of the emitted light at the detected point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.