Power-over-fiber system
    4.
    发明授权

    公开(公告)号:US12088353B2

    公开(公告)日:2024-09-10

    申请号:US17754898

    申请日:2020-06-18

    发明人: Tatsuo Mizukami

    IPC分类号: H04B10/80 H01S5/068 H02J50/30

    摘要: A power-over-fiber system includes a power sourcing equipment, a powered device, and an optical fiber cable. The power sourcing equipment includes a semiconductor laser that oscillates with electric power to output feed light. The powered device includes a photoelectric conversion element that converts the feed light from the power sourcing equipment into electric power. The optical fiber cable transmits the feed light from the power sourcing equipment to the powered device. The power-over-fiber system includes a temperature sensor that detects a temperature in the power sourcing equipment. When the temperature detected by the temperature sensor is equal to or higher than a predetermined threshold, a process of decreasing electric power input to the semiconductor laser is performed. When the temperature detected by the temperature sensor is lower than the predetermined threshold, a process of increasing electric power input to the semiconductor laser is performed.

    REMOTE POWER SAFETY SYSTEM
    7.
    发明公开

    公开(公告)号:US20240275214A1

    公开(公告)日:2024-08-15

    申请号:US18426189

    申请日:2024-01-29

    申请人: LaserMotive, Inc.

    摘要: A power beaming system delivers electric power in laser light from a first location to a second location. The laser light has a high energy intensity level defining a hazardous illumination area and a low energy intensity level defining a safe illumination area. The system includes guard circuitry emitter(s) and corresponding detector(s). The guard circuitry forms a detection area about the hazardous illumination area to detect objects in proximity to the hazardous illumination area. A controller directs the guard and power beam circuitry according to sequentially activated safety modes to operate at a low energy intensity level, to scan in a defined pattern, to adjust operation of the detector(s), and to set guard circuitry parameters, an object detection value, or a change to the delivered electric power. An output coupled to the controller and power beam circuitry controllably permits or prevents operation at the high energy intensity level.

    Wireless power transmission/reception apparatus and display system including the same

    公开(公告)号:US11984734B2

    公开(公告)日:2024-05-14

    申请号:US17616752

    申请日:2020-02-27

    IPC分类号: H02J50/30 G02B27/09 H01S3/00

    摘要: The present disclosure provides a display system including: a display apparatus; a wireless power reception apparatus configured to supply power to the display apparatus; and a wireless power transmission apparatus configured to emit a laser beam toward the wireless power reception module, wherein the wireless power reception module is formed as a bar type; and the wireless power transmission module comprises a light source configured to emit light of a specific wavelength as a laser beam, and a light shaping unit configured to shape the light of the light source and to convert the shaped light into a laser beam having a different cross-section and output the laser beam. Accordingly, by performing wireless power transmission using laser light, which satisfies the electromagnetic interference (EMI) requirements, wireless power may be transmitted to high-quality wall-mounted TVs and AV devices.