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11. 发明公开

EP3972158A1 SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 审中-实审
公开(公告)号：EP3972158A1
公开(公告)日：2022-03-23
申请号：EP21207092.4
申请日：2017-03-14
申请人： Wi-Charge Ltd.
发明人： GOLAN, Lior , SLEPOY, Alexander , NAHMIAS, Omer , SAGI, Ran , ALPERT, Ortal , MOR, Ori Refael
IPC分类号： H04B10/80
摘要： The present invention relates to a laser-based system for safe wireless power transmission from a transmitter to at least one receiver, said system comprising: an optical resonator having end reflectors and a gain medium disposed within said optical resonator, said gain medium being configured to amplify light passing through it, and said optical resonator being configured to emit an optical beam of laser light; a driver configured to supply power to said gain medium, and enabling control of a small signal gain of said gain medium; an optical beam steering apparatus positioned in the path of said optical beam of laser light emitted from said optical resonator, said optical beam steering apparatus configured to direct said optical beam of laser light_in at least one of a plurality of directions; and a controller configured to receive a control input at least from a detector providing a signal indicative of the extent of impingement of said optical beam of laser light on an optical-to-electrical power converter disposed in one of said at least one receiver; said system being characterized in that said gain medium is selected such that it amplifies an optical beam of laser light passing through it, having a frequency in the region between the first overtone of the C-H absorption situated about 6940 cm -1 and the second overtone of the C-H absorption situated about 8130 cm -1 , to enable said controller to detect the presence of a surface of an optically transparent organic material in the optical beam of laser light between said optical beam steering apparatus and said at least one receiver, by detecting a difference exceeding a predefined threshold or a dynamically set threshold, between the level of said optical wireless power received at said at least one receiver, and the level of said optical wireless power directed from said beam steering apparatus. The present invention also pertains to a corresponding method.

12. 发明公开

EP3815266A1 WIRELESS POWER SYSTEM HAVING IDENTIFIABLE RECEIVERS 有权
公开(公告)号：EP3815266A1
公开(公告)日：2021-05-05
申请号：EP19807530.1
申请日：2019-05-23
申请人： WI-CHARGE LTD
发明人： BIDERMAN, Yoav , ALPERT, Ortal , MOR, Ori Refael , NAHMIAS, Omer , GOLAN, Lior , SAGI, Ran , LEVIN, Zohar , SLEPOY, Alexander , ROSH, Yan , CONFORTI, Eyal
IPC分类号： H04B10/112 , H02J50/60

13. 发明公开

EP4246770A3 WIRELESS POWER SYSTEM HAVING IDENTIFIABLE RECEIVERS 审中-实审
公开(公告)号：EP4246770A3
公开(公告)日：2024-01-03
申请号：EP23190192.7
申请日：2019-05-23
申请人： WI-CHARGE LTD
发明人： BIDERMAN, Yoav , ALPERT, Ortal , MOR, Ori Refael , NAHMIAS, Omer , GOLAN, Lior , SAGI, Ran , LEVIN, Zohar , SLEPOY, Alexander , ROSH, Yan , CONFORTI, Eyal
IPC分类号： H02J50/60
摘要： A wireless power transmitter system for directing a high energy beam towards receivers fitted with identifying signs. One type of the identifying signs may have asymmetric shape properties, such that their mirror image cannot be matched to their actual shape, even after the image is rotated, tilted or otherwise geometrically manipulated. The system can thus determine whether a detected image of a sign is a true image received directly from said receiver, or is received after the imaged beam has undergone a reflection between the receiver and the transmission system. In the latter case, the system can prevent high power transmission from being directed to a location other than a real receiver, which could be a safety hazard. Other types of identifying signs may be located in or on the borders of different zones of a transmission space, to identify zones where transmission may be allowed or prohibited.

14. 发明公开

EP3443324A2 SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 有权
公开(公告)号：EP3443324A2
公开(公告)日：2019-02-20
申请号：EP17782054.5
申请日：2017-04-09
申请人： Wi-Charge Ltd.
发明人： SLEPOY, Alexander , GOLAN, Lior , NAHMIAS, Omer , SAGI, Ran , ALPERT, Ortal , MOR, Ori Refael
IPC分类号： G01N21/00 , G06M7/00 , H01J3/14 , H01S3/06 , H02M3/158 , H04B10/00

15. 发明公开

EP4362352A2 SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 审中-实审
公开(公告)号：EP4362352A2
公开(公告)日：2024-05-01
申请号：EP24150994.2
申请日：2017-04-09
申请人： Wi-Charge Ltd.
发明人： SLEPOY, Alexander , GOLAN, Lior , NAHMIAS, Omer , SAGI, Ran , ALPERT, Ortal , MOR, Ori Refael
IPC分类号： H04B10/00
CPC分类号： H04B10/807 , H02J50/30 , H02J7/35 , Y02E10/544 , H01S3/0071 , H01S3/1022
摘要： A system incorporating safety features, for optical power transmission to receivers, comprising an optical resonator having end reflectors and a gain medium, a driver supplying power to the gain medium, and controlling its small signal gain, a beam steering apparatus and a controller to control at least the beam steering apparatus and the driver. The controller responds to a safety risk occurring in the system, by outputting a command to change at least some of the small signal gain of the gain medium, the radiance of the optical beam, the power supplied by the driver, the scan speed or the scan direction and position of the beam steering apparatus, or to register the scan pose which defines the location of said optical-to-electrical power converter. The controller may also ensure a high overall radiance efficiency, and may warn of transmitted power not received by a targeted receiver.

16. 发明公开

EP3942674A1 PHOTOVOLTAIC CELL FOR LASER BEAM POWER DETECTION 审中-实审
公开(公告)号：EP3942674A1
公开(公告)日：2022-01-26
申请号：EP20773899.8
申请日：2020-03-20
申请人： Wi-Charge Ltd.
发明人： ALPERT, Ortal , MOR, Ori Refael , GOLAN, Lior , SAGI, Ran , CONFORTI, Eyal
IPC分类号： H02J50/30 , H01L31/0352

17. 发明授权

EP3323212B1 SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 有权
公开(公告)号：EP3323212B1
公开(公告)日：2020-04-01
申请号：EP16823998.6
申请日：2016-07-14
申请人： Wi-Charge Ltd.
发明人： MOR, Ori Refael , ALPERT, Ortal , SLEPOY, Alexander , GOLAN, Lior , SAGI, Ran , SHMUKLER, Vadim , RONEN, Eitan , NAHMIAS, Omer , VAISLEIB, Victor
IPC分类号： H04B10/00 , H02J7/02 , H02J50/30

18. 发明公开

EP4362352A3 SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 审中-实审
公开(公告)号：EP4362352A3
公开(公告)日：2024-07-03
申请号：EP24150994.2
申请日：2017-04-09
申请人： Wi-Charge Ltd.
发明人： SLEPOY, Alexander , GOLAN, Lior , NAHMIAS, Omer , SAGI, Ran , ALPERT, Ortal , MOR, Ori Refael
IPC分类号： G01N21/00 , G06M7/00 , H01J3/14 , H01S3/06 , H02M3/158 , H04B10/00
CPC分类号： H04B10/807 , H02J50/30 , H02J7/35 , Y02E10/544 , H01S3/0071 , H01S3/1022
摘要： A system incorporating safety features, for optical power transmission to receivers, comprising an optical resonator having end reflectors and a gain medium, a driver supplying power to the gain medium, and controlling its small signal gain, a beam steering apparatus and a controller to control at least the beam steering apparatus and the driver. The controller responds to a safety risk occurring in the system, by outputting a command to change at least some of the small signal gain of the gain medium, the radiance of the optical beam, the power supplied by the driver, the scan speed or the scan direction and position of the beam steering apparatus, or to register the scan pose which defines the location of said optical-to-electrical power converter. The controller may also ensure a high overall radiance efficiency, and may warn of transmitted power not received by a targeted receiver.

19. 发明公开

EP4052353A1 WIRELESS POWER TRANSMISSION SYSTEM WITH ADAPTIVE DYNAMIC SAFETY MANAGEMENT 审中-实审
公开(公告)号：EP4052353A1
公开(公告)日：2022-09-07
申请号：EP20882329.4
申请日：2020-11-01
申请人： Wi-Charge Ltd.
发明人： GOLAN, Lior , BIDERMAN, Yoav , SAGI, Ran , ALPERT, Ortal , MOR, Ori Refael
IPC分类号： H02J50/80 , H02J50/30 , H04B10/079 , H04B10/80

20. 发明公开

EP3726703A1 SYSTEM FOR OPTICAL WIRELESS POWER SUPPLY 审中-公开
公开(公告)号：EP3726703A1
公开(公告)日：2020-10-21
申请号：EP20165195.7
申请日：2016-07-14
申请人： Wi-Charge Ltd.
发明人： MOR, Ori Refael , ALPERT, Ortal , SLEPOY, Alexander , GOLAN, Lior , SAGI, Ran , SHMUKLER, Vadim , RONEN, Eitan , NAHMIAS, Omer , VAISLEIB, Victor
IPC分类号： H02J50/30 , H02J7/02 , H02J7/00 , H02J50/60
摘要： A system for optical wireless power transmission to a power receiving apparatus generally situated in a mobile electronic device. The transmitter has an optical resonator with end reflectors and a gain medium positioned between them, such that an optical beam is generated. The frequency of the beam is selected such that it is absorbed by almost all transparent organic materials in general use. A beam steering unit on the transmitter can direct the beam in any of a plurality of directions, and the beam is absorbed on the receiver by means of an optical-to-electrical power converter, through a low reflection surface. The band gap of this power converter is selected to be smaller than that of the gain medium. The receiver has a voltage converter including an inductor, an energy storage device and a switch. A beam steerer controller ensures that the beam impinges on the receiver.

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