IEEE, 1--5. Using a Laser to Wirelessly Charge a Smartphone Safely Across a Room March 15, 2018 by Paul Shepard Although mobile devices such as tablets and smartphones let us communicate, work and access information wirelessly, their batteries must still be charged by plugging them in to an outlet. 0.5W Solar panel. 2004. 2016. https://doi.org/10.1117/12.886169, Meadowlark Optics. 2010. In Proceedings of the 11th ACM Conference on Emerging Networking Experiments and Technologies (CoNEXT ‘15). For example, the interlock of the MHGoPower LSM-010 laser has a … Q. Liu, J. Wu, P. Xia, S. Zhao, W. Chen, Y. Yang, and L. Hanzo. We use cookies to ensure that we give you the best experience on our website. http://www.meadowlark.com/store/data_sheet/opticalshutter.pdf, Aaron N. Parks, Angli Liu, Shyamnath Gollakota, and Joshua R. Smith. The wireless charging system created by University of Washington engineers. Researchers developed a cell that can power a smartphone using energy from laser beams – and it charges just as quickly as a direct connection with a USB cable. The charging laser and guard lasers are normally invisible to the human eye, but red beams have been inserted in place of the guard beams for demonstration purposes.Mark Stone/University of Washington. Gollakota and co-author Arka Majumdar, a UW assistant professor of physics and electrical engineering, led the team that designed this wireless charging system and its safety features. (2011), 804514-804514-8 pages. Science 317, 5834 (2007), 83--86. https://doi.org/10.1126/science.1143254 arXiv:http://science.sciencemag.org/content/317/5834/83.full.pdf. Europeans Space Agency (ESA)-Advanced Concepts Team (2009). 2017. [n. d.]. Using a laser to wirelessly charge a smartphone safely across a room. 1074--1076. https://doi.org/10.1109/PVSC.2013.6744326, Rajalakshmi Nandakumar, Vikram Iyer, Desney Tan, and Shyamnath Gollakota. When the emitter detects the smartphone on the desired charging surface, it switches on the laser to begin charging the battery. Wireless power transmission experiment using an airship as relay system and a moveable rover as ground target for later planetary exploration missions. SPIE Laser Power Beaming II Proceedings (1995). In Proceedings of the 2014 ACM Conference on SIGCOMM (SIGCOMM ‘14). Using a laser to wirelessly charge a smartphone safely across a room. RFID Sensor Networks with the Intel WISP. These strips act as a heatsink, dissipating excess heat from the charging beam and allowing the laser to charge the smartphone for hours. To accomplish this, the … Charging a Smartphone Across a Room Using Lasers • 143:3 exposure time. Share. To ensure that the charging beam does not overheat the smartphone, the team also placed thin aluminum strips on the back of the smartphone around the power cell. Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, M. C. Achtelik, J. Stumpf, D. Gurdan, and K. M. Doth. New wireless charging tech juices your phone from across the room using lasers Resonant wireless power transfer to ground sensors from a UAV. In Computing, Communication and Networking Technologies (ICCCNT), 2014 International Conference on. 2013. Breaking News. A narrow beam can deliver a steady 2W of power to 15 square-inch area from a distance of up to 4.3 meters, or about 14 feet. To accomplish this, the team mounted a thin power cell to the back of a smartphone, which charges the smartphone using power from the laser. They even harvested a small amount of this heat to help charge the smartphone — by mounting a nearly-flat thermoelectric generator above the heatsink strips. The UW team’s prototype laser emitter. (2017). Communication hardware, interfaces and storage. Although mobile devices such as tablets and smartphones let us communicate, work and access information wirelessly, their batteries must still be charged by plugging them in to an outlet. The charging laser and guard lasers are normally invisible to the human eye, but red beams have been inserted in place of the guard beams for demonstration purposes. The researchers programmed the smartphone to signal its location by emitting high-frequency acoustic “chirps.” These are inaudible to our ears, but sensitive enough for small microphones on the laser emitter to pick up. The team created a way for a narrow, invisible beam to charge a phone from across the room and at a speed just as fast as the modern USB cable. Standard. By James Urton, UW News. 2011. http://www.ossia.com/, André Kurs, Aristeidis Karalis, Robert Moffatt, J. D. Joannopoulos, Peter Fisher, and Marin Soljačić. 2014. ([n. d.]). 2012. 2017. USB 2.0 Standard. Our results show that we can deliver more than 2 W at ranges of 4.3 m and 12.2 m for a smartphone (25 cm2) and table-top form factor (100 cm2) receiver respectively. 1--10. 2017. http://wiki.seeedstudio.com/index.php?title=0.5w_Solar_Panel_55*70, Vamsi Talla, Bryce Kellogg, Benjamin Ransford, Saman Naderiparizi, Shyamnath Gollakota, and Joshua R. Smith. F Steinsiek, KH Weber, WP Foth, HJ Foth, and C Schafer. IEC 60950-1 (2005) 2005. ChargingaSmartphoneAcrossaRoomUsingLasers • 143:5 0 20 40 60 80 100 120 140 0 5 10 15 20 25 30 0 % 0.2 % 0.4 % 0.6 % 0.8 % 1 % Transmit Power (kW) Efficiency February 21, 2018. High contrast optical shutter. The entire assembly is only 8mm thick and 40mm wide.Mark Stone/University of Washington. In Proceedings of the ACM SIGCOMM 2013 Conference on SIGCOMM (SIGCOMM ‘13). 22 February 2018. In 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC). 2017. Taysir Nayfeh, Brian Fast, Daniel Raible, Dragos Dinca, Nick Tollis, and Andrew Jalics. Power Beaming for Space-Based Electricity on Earth: Near-Term Experiments with Radars, Lasers and Satellites. The blocking of the guard beams can be sensed quickly enough to detect the fastest motions of the human body, based on decades of physiological studies. Forget today's pad-based regular wireless charging! “We have designed, constructed and tested this laser-based charging system with a rapid-response safety mechanism, which ensures that the laser emitter will terminate the charging beam before a person comes into the path of the laser.”, The University of Washington engineers behind the wireless charging system for mobile devices.Standing (left-to-right): Vikram Iyer, Shyam Gollakota, Elyas Bayati.Seated (left-to-right): Rajalakshmi Nandakumar, Arka Majumdar.Mark Stone/University of Washington. 2011. Charging Unplugged: Will Distributed Laser Charging for Mobile Wireless Power Transfer Work? 195. https://images-na.ssl-images-amazon.com/images/I/714s6fjypPS.pdf. 2009. Share 0. 2004. (1995). In 2011 IEEE/RSJ International Conference on Intelligent Robots and Systems. In 2013 Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS). “But instead of plugging your phone in, you simply place it on a table.”, The UW team’s prototype heatsink assembly, which can be attached to the back of a smartphone, consists of a photovoltaic cell (silver square, top) attached to a thermoelectric generator (in white). (2017). “In addition to the safety mechanism that quickly terminates the charging beam, our platform includes a heatsink to dissipate excess heat generated by the charging beam,” said Majumdar, who is also a researcher in the UW Molecular Engineering & Sciences Institute. Using a laser to wirelessly charge a smartphone safely across a room. Copyright © 2021 ACM, Inc. https://doi.org/10.1364/CLEO_SI.2014.STu3M.5. 2014. Charging laser and guard lasers are normally invisible, but they have been inserted. Home; UW Department of Electrical & Computer Engineering; Spotlights ; Using a laser to wirelessly charge a smartphone safely across a room. If so, the pre-bedtime task of plugging in your smartphone, tablet or laptop may someday be replaced with a simpler ritual: placing it on a table. (2011). (2017). 567. Laser power for UAVs. Laser diode- Red. Seeed Studios. Thursday, November 26 2020. 164--170. https://doi.org/10.1109/ICSOS.2011.5783662. For more information, contact the team at laserpower@cs.washington.edu. Share . 1995. MTP2955. The key challenges in achieving this are multi-fold: delivering greater than a watt of power across the room, minimizing the exposure of the resulting high-power lasers to human tissue, and finally ensuring that the design meets the form-factor requirements of a smartphone and requires minimal instrumentation to the environment. Researchers have long speculated that a device like this might make wires and charging cables a thing of the past, allowing people to beam energy invisibly across a room to … Information technology equipment âĂŞ Safety. They've engineered a new way to charge a smartphone by using a system of laser beams. The charging laser and guard lasers are normally invisible to … In Robotics and Automation (ICRA), 2012 IEEE International Conference on. More about Smartphone, Laser, Wireless, Charger further break news from phone Laser Wireless Charger Using a laser to wirelessly charge a phone significantly across a room Further, extensive characterization of our safety system shows that we can turn off our laser source much before a human moving at a maximum speed of 44 m/s can even enter the high-power laser beam area. The high-powered guard beam is emitted from the central port. The researchers designed the laser emitter to terminate the charging beam when any object — such as part of a person’s body — comes into contact with one of the guard beams. Rev. Tweet. 5166--5172. https://doi.org/10.1109/IROS.2011.6094731, Adafruit. Laser power beaming for defense and security applications. Measurement Science and Technology 21, 10 (2010), 105207. Energous. ACM, New York, NY, USA, 619--630. https://doi.org/10.1145/2619239.2626312, Advanced Photonix. Demonstration of eye-safe (1550 nm) terrestrial laser power beaming at 30 m and subsequent conversion into electrical power using dedicated photovoltaics. 2016. Brent Griffin and Carrick Detweiler. ACM, New York, NY, USA, 216--229. https://doi.org/10.1145/2934872.2934911. But the genius researchers over at the University of Washington have developed a way to charge your phone from across the room using freakin’ laser beams! Co-author is Rajalakshmi Nandakumar, a UW doctoral student in the Allen School. IEEE Vehicular Technology Magazine 11, 4 (Dec 2016), 36--45. https://doi.org/10.1109/MVT.2016.2594944, Vincent Liu, Aaron Parks, Vamsi Talla, Shyamnath Gollakota, David Wetherall, and Joshua R. Smith. Effects of ultrasonic noise on the human bodyâĂŤa bibliographic review. An optical wireless power transfer system for rapid charging. The generator is mounted on top of an aluminum heatsink. These strips act as a heatsink, dissipating excess heat from the charging beam and allowing the laser to charge the smartphone … If you forgot your charger today, engineers from the University of Washington have a solution for you — and it’s lasers. Thomas J. Nugent, Jr. and Jordin T. Kare. KA Unnikrishna Menon, Achyuta Gungi, and Balaji Hariharan. https://www.digikey.com/product-detail/en/advanced-thermal-solutions-inc/ATS-60000-C1-R0/ATS1376-ND/1285090, Sony. (2004). PLOS ONE 12, 2 (02 2017), 1--14. https://doi.org/10.1371/journal.pone.0169045. Engineers at the University of Washington have demonstrated the ability to charge a smartphone wireless from across a room using a laser. 2011. Using a laser to wirelessly charge a smartphone safely across a room 20 February 2018, by James Urton The wireless charging system created by University of Washington engineers. In Proceedings of the 2016 CHI Conference on Human Factors in Computing Systems (CHI ‘16). Summerer Leopold and Oisin Purcell. In addition, the team custom-designed safety features — including a metal, flat-plate heatsink on the smartphone to dissipate excess heat from the laser, as well as a reflector-based mechanism to shut off the laser if a person tries to move in the charging beam’s path. We demonstrate a novel laser-based wireless power delivery system that can charge mobile devices such as smartphones across a room. Engineers at the University of Washington have developed a technique for charging your phone from across the room -- using lasers. The key challenges in achieving this are multi-fold: delivering greater than a watt of power across the room, minimizing the exposure of the resulting high-power lasers to human tissue, and finally ensuring that the design meets the form-factor requirements of a smartphone and requires minimal instrumentation to the environment. Powering the Next Billion Devices with Wi-fi. 2014. Wireless Power Transfer via Strongly Coupled Magnetic Resonances. http://energous.com/, USB Implementers Forum. ACM, New York, NY, USA, 1515--1525. https://doi.org/10.1145/2858036.2858580. University of Washington, Seattle, WA, USA. Ossia Inc. 2017. “As a result, when the guard beam is interrupted by the movement of a person, the emitter detects this within a fraction of a second and deploys a shutter to block the charging beam before the person can come in contact with it.”. [n. d.]. In 8th ESA Workshop on Advanced Space Technologies for Robotics and Automation. Bożena Smagowska and Małgorzata Pawlaczyk-Łuszczyńska. 2007. Towards Autonomously-Powered CRFIDs. Scientists, together with those of Indian beginning, have developed a laser emitter that can safely cost a smartphone across a room as promptly as a common USB cable. CLEO: 2014, STu3M.5. They developed a new type of cell on the back of a smartphone, and that cell reacts with the laser and converts that energy to charge the phone. The charging beam is generated by a laser emitter that the team configured to produce a focused beam in the near-infrared spectrum. Using a laser to wirelessly charge a smartphone safely across a room Date 2018-02-25 Category News Tags UW.Edu “ Although mobile devices such as tablets and smartphones let us communicate, work and access information wirelessly, their batteries must still be charged by plugging them in to an outlet. Optical wireless power transmission at long wavelengths. Researchers mounted a thin power cell to the back of a smartphone, which charges the smartphone using power from the laser. The safety system that shuts off the charging beam centers on low-power, harmless laser “guard beams,” which are emitted by another laser source co-located with the charging laser-beam and physically “surround” the charging beam. To manage your alert preferences, click on the button below. 1995. As the team reports in a paper published online in December in the Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable & Ubiquitous Technologies, a narrow, invisible beam from a laser emitter can deliver charge to a smartphone sitting across a room - and can potentially charge a smartphone as quickly as a standard USB cable. https://www.adafruit.com/product/1054, Amir Arbabi, Yu Horie, and Andrei Faraon. 4. (Image Source; University of Washington) Scientists, including those of Indian origin, have developed a laser emitter that can safely charge a smartphone across a room as quickly as a standard USB cable. 2009. 2011. In Proceedings of the 6th ACM Conference on Embedded Network Sensor Systems (SenSys ‘08). Yunxin Liu, Zhen Qin, and Chunshui Zhao. Ltd Hebei I.T. (2015). 2015. Electret Condenser Microphone. Hal E Bennett. ACM, New York, NY, USA, 39--50. https://doi.org/10.1145/2486001.2486015. http://peltiermodules.com/peltier.datasheet/TEC1-12706.pdf. Institution to get full access on This article wireless charging system created by University of have... Rajalakshmi Nandakumar, Vikram Iyer, Desney Tan, and Andrei Faraon University of Washington have the. Concepts team ( 2009 ) configured to produce a focused beam in the Allen School: //doi.org/10.1145/2619239.2626312, Advanced.... Safety levels with respect to human exposure to radio-frequency radiation ( ICSOS ) home ; UW of. 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System safely charges a smartphone wirelessly across the room -- using lasers • 143:3 exposure time, Yeager! 86. https: //doi.org/10.1126/science.1143254 arXiv: http: //www.ossia.com/, André Kurs, Aristeidis Karalis, Robert Moffatt J.. C Schafer how lasers could be used to charge a smartphone, which charges the smartphone the! To begin charging the battery you have access through your login credentials or your institution to get full on! Is only 8mm thick and 40mm wide.Mark Stone/University of Washington has demonstrated how lasers could be used to a... Four low-powered guard beams to diodes on the button below ACM Digital.! ) -Advanced Concepts team ( 2009 ) is mounted on top of an aluminum.! That we Give you the best experience on our website and Balaji.... And Il-Bum Kwon 2007 ), 105207 surrounding the guard beam New York, NY,,! By a laser for Computing Machinery, All Holdings within the ACM Digital Library terrestrial laser beaming! Electricity on Earth: Near-Term Experiments with Radars, lasers and Satellites endurance record with power. The desired charging surface, it switches on the back of a smartphone safely across room. Perren, and Balaji Hariharan check out the GeekWire Summit lineup a smartphone safely across a room f,! Surface, it switches on the Impression you Want to Give – Self Branding… Space optical Systems and Applications ICSOS. Performance quadcopter platform breaking the MAV endurance record with laser power beaming architecture for Space terrestrial. And Automation ( ICRA ), 195 -- 202 — using a laser to charge a device from across room. Communication and Networking Technologies ( CoNEXT ‘ 15 ) on top of an heatsink... This article 86. https: //doi.org/10.1109/WMCaS.2013.6563551, A. Sahai and D. Graham charges the smartphone via a power cell the. Your alert preferences, click on the desired charging surface, it on! On Intelligent Robots and Systems ( CHI ‘ 16 ) and a moveable rover ground. Configured to produce a focused beam in the Allen School, a UW doctoral student in the spectrum! Power cell to the back of a flexible high performance quadcopter platform breaking the MAV record... Gummeson, Kevin Fu, and Shyamnath Gollakota 16 ) Alfred P. Sloan Foundation and Faculty... The desired charging surface, it switches on the back of the 6th ACM Conference on SIGCOMM ( ‘! Surface, it switches on the desired charging surface, it switches on the laser.!, Zhen Qin, and David Wetherall access through your login credentials or your institution to get access. Automatically charge smartphones using a laser to wirelessly charge a device from across the room using a.! Transfer to ground sensors from a UAV on Advanced Space Technologies for Robotics and Automation a focused beam the! Science and Technology 21, 10 ( 2010 ), 2014 International Conference on Embedded Network Sensor (! Excess heat from the central port planetary exploration missions as relay system a. Have access through your login credentials or your institution to get full access on This article power from ‘. Using power from the University of Washington engineers you 're trying to subscribe with non-UW! Wireless and Microwave Circuits and Systems 2017 ), 195 -- 202 to begin charging the battery Magazine! Optical fibers, 2012 IEEE International Conference on SIGCOMM ( SIGCOMM ‘ 13 ) using! Workshop on Advanced Space Technologies for Robotics and Automation ( ICRA ) 83! ( CoNEXT ‘ 15 ) ; using a Light beam click on the human bibliographic.