Power supply device, power receiving device, and optical power supply system
The system uses a short-wavelength laser beam for power transmission and a surrounding long-wavelength beam for obstacle detection, effectively avoiding contact and ensuring efficient and safe power supply without complex guard circuits.
JP2026120925APending Publication Date: 2026-07-23KYOCERA CORP
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Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- KYOCERA CORP
- Filing Date
- 2023-05-26
- Publication Date
- 2026-07-23
AI Technical Summary
Technical Problem
Conventional optical power feeding systems require complex guard circuits to avoid contact between power feeding light and obstacles.
Method used
The system employs a first laser beam with a short wavelength for power transmission and a second laser beam with a longer wavelength for obstacle detection, where the second beam surrounds the first beam, and a control unit manages their output to avoid contact with obstacles.
Benefits of technology
This approach effectively avoids contact between the power transmission laser beam and obstacles without the need for a complicated guard circuit, ensuring high-power and high-efficiency power supply while adhering to safety standards.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026120925000001_ABST
Abstract
The present invention provides a power supply device, a power receiving device, and an optical power supply system that effectively avoid contact between the power supply light and obstacles. [Solution] In the optical power supply system 1A, the power supply device 100 includes a first semiconductor laser 110 that outputs a first laser beam 112 which is power supply light and has a predetermined short wavelength, a second semiconductor laser 120 that outputs a second laser beam 122 which has a longer wavelength than the first laser beam, and a power supply control unit 150. The power supply control unit causes the second laser beam to output around the first laser beam, acquires information on the amount of power received by the second laser beam from the power receiving device 300, determines that the second laser beam has been blocked and stops the output of the first laser beam when the amount of power received by the second laser beam is less than or equal to a predetermined threshold, and causes the first laser beam to output when the amount of power received by the second laser beam is greater than the predetermined threshold.
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