In Proceedings of the 2016 CHI Conference on Human Factors in Computing Systems (CHI ‘16). In Proceedings of the 2016 ACM SIGCOMM Conference (SIGCOMM ‘16). 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. James C Lin. 2011. Researchers mounted a thin power cell to the back of a smartphone, which charges the smartphone using power from the laser. Coherent Inc. 2017. 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. In Proceedings of the 11th ACM Conference on Emerging Networking Experiments and Technologies (CoNEXT ‘15). ACM, New York, NY, USA, 39--50. https://doi.org/10.1145/2486001.2486015. We use cookies to ensure that we give you the best experience on our website. If you forgot your charger today, engineers from the University of Washington have a solution for you — and it’s lasers. The guard beams deliver no charge to the phone themselves, but their reflection from the smartphone back to the emitter allows them to serve as a “sensor” for when a person will move in the path of the guard beam. “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). The charging laser and guard lasers are normally invisible to the human eye, but red beams have been inserted here in place of the guard beams for demonstration purposes. For more information, contact the team at laserpower@cs.washington.edu. (2004). 2013. http://www.wibotic.com/, Charging a Smartphone Across a Room Using Lasers, All Holdings within the ACM Digital Library. 2004. High contrast optical shutter. We demonstrate a novel laser-based wireless power delivery system that can charge mobile devices such as smartphones across a room. In Proceedings of the ACM SIGCOMM 2013 Conference on SIGCOMM (SIGCOMM ‘13). The charging laser and guard lasers are normally invisible to … IEEE, 1--5. 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. Resonant wireless power transfer to ground sensors from a UAV. 2006. The generator is mounted on top of an aluminum heatsink. High intensity laser power beaming architecture for space and terrestrial missions. 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. Communication hardware, interfaces and storage. Michael Buettner, Richa Prasad, Alanson Sample, Daniel Yeager, Ben Greenstein, Joshua R. Smith, and David Wetherall. IEC 60825-1 2001. https://doi.org/10.1117/12.886169, Meadowlark Optics. Share . https://doi.org/10.1145/2716281.2836089, Wibotic. Seeed Studios. 2009. This alert has been successfully added and will be sent to: You will be notified whenever a record that you have chosen has been cited. Home; UW Department of Electrical & Computer Engineering; Spotlights ; Using a laser to wirelessly charge a smartphone safely across a room. 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. Billy Hurley, Digital Editorial Manager . University of Washington students have figured out a secure way to charge a smartphone with almost-infrared lasers. Q. Liu, J. Wu, P. Xia, S. Zhao, W. Chen, Y. Yang, and L. Hanzo. PDB-C156. This paper presents a novel, and to the best of our knowledge, the first design, implementation and evaluation of an end-to-end power delivery system that satisfies all the above requirements. 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. Concepts for wireless energy transmission via laser. J. Mukherjee, W. Wulfken, H. Hartje, F. Steinsiek, M. Perren, and S. J. Sweeney. (2011). “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. The wireless charging system created by University of Washington engineers. Four low-powered guard beams are emitted from ports surrounding the guard beam. Design of a flexible high performance quadcopter platform breaking the MAV endurance record with laser power beaming. FingerIO: Using Active Sonar for Fine-Grained Finger Tracking. (2011). Powering the Next Billion Devices with Wi-fi. 1995. ([n. d.]). (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. The UW team’s prototype laser emitter. 2017. If you're trying to subscribe with a non-UW email address, please email uwnews@uw.edu for assistance. In Computing, Communication and Networking Technologies (ICCCNT), 2014 International Conference on. When the emitter detects the smartphone on the desired charging surface, it switches on the laser to begin charging the battery. ProjecToR: Agile Reconfigurable Data Center Interconnect. International Journal of Occupational Safety and Ergonomics 19, 2 (2013), 195--202. 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. Laser diode- Red. Researchers installed a skinny vigor phone to the returned of a smartphone, which costs the smartphone the use of power from the laser … The ACM Digital Library is published by the Association for Computing Machinery. Thursday, November 26 2020. 2014. These strips act as a heatsink, dissipating excess heat from the charging beam and allowing the laser to charge the smartphone for hours. February 21, 2018. Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, M. C. Achtelik, J. Stumpf, D. Gurdan, and K. M. Doth. In 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC). IEEE, 2660--2665. How Stock Exchange works; Decide on the Impression You Want to Give – Self Branding…. Near-IR laser system safely charges a smartphone wirelessly from across a room This laser-based wireless charging system was created by University of Washington engineers. Charging a Smartphone Across a Room Using Lasers • 143:3 exposure time. 2011. In 2011 International Conference on Space Optical Systems and Applications (ICSOS). 2017. Safety of Laser Products. 4. Measurement Science and Technology 21, 10 (2010), 105207. 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. Integrated guided wave generation and sensing using a single laser source and optical fibers. 2016. Tweet. 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. “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. “This acoustic localization system ensures that the emitter can detect when a user has set the smartphone on the charging surface, which can be an ordinary location like a table across the room,” said co-lead author Vikram Iyer, a UW doctoral student in electrical engineering. 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 Taysir Nayfeh, Brian Fast, Daniel Raible, Dragos Dinca, Nick Tollis, and Andrew Jalics. [n. d.]. 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. 2011. "The laser used for the charging is normally colorless; however, for demonstration purposes the investigators used red beams. (1995). Engineering  |  News releases  |  Research  |  Science. In Proceedings of the 6th ACM Conference on Embedded Network Sensor Systems (SenSys ‘08). (2017). 2014. The researchers’ technology enables a laser emitter’s narrow, invisible beam to power up a smartphone from across the room — perhaps as quickly as a standard USB cable. USB 2.0 Standard. 2008. 2004. Wireless power transmission experiment using an airship as relay system and a moveable rover as ground target for later planetary exploration missions. 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. AutoCharge: Automatically Charge Smartphones Using a Light Beam. Planar Retroreflector, In CLEO: 2014. 1--4. https://doi.org/10.1109/WMCaS.2013.6563551, A. Sahai and D. Graham. http://www.meadowlark.com/store/data_sheet/opticalshutter.pdf, Aaron N. Parks, Angli Liu, Shyamnath Gollakota, and Joshua R. Smith. (2004). In Solar Power from Space-SPS‘04, Vol. Hyeonseok Lee, Hyun-Jun Park, Hoon Sohn, and Il-Bum Kwon. Researchers from the University of Washington have devised a new way to charge a smartphone from across the room using lasers. Check if you have access through your login credentials or your institution to get full access on this article. (2011), 804514-804514-8 pages. 2011. 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. Efficient wireless power transfer using underground relay coils. Co-author is Rajalakshmi Nandakumar, a UW doctoral student in the Allen School. http://www.ossia.com/, André Kurs, Aristeidis Karalis, Robert Moffatt, J. D. Joannopoulos, Peter Fisher, and Marin Soljačić. Shane S. Clark, Jeremy Gummeson, Kevin Fu, and Deepak Ganesan. 2014. In 2013 Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS). TEC1-12706. Share 0. SPIE Laser Power Beaming II Proceedings (1995). “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.”. 567. Copyright © 2021 ACM, Inc. Custom 3-D printed “retroreflectors” placed around the power cell on the smartphone reflect the guard beams back to photodiodes on the laser emitter. Brent Griffin and Carrick Detweiler. (Shanghai) Co. 2001. 2017. 2015. (2015). 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. https://www.adafruit.com/product/1054, Amir Arbabi, Yu Horie, and Andrei Faraon. 164--170. https://doi.org/10.1109/ICSOS.2011.5783662. By James Urton, UW News. (2017). 2007. 1074--1076. https://doi.org/10.1109/PVSC.2013.6744326, Rajalakshmi Nandakumar, Vikram Iyer, Desney Tan, and Shyamnath Gollakota. 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. Science 317, 5834 (2007), 83--86. https://doi.org/10.1126/science.1143254 arXiv:http://science.sciencemag.org/content/317/5834/83.full.pdf. Share. 1--10. New wireless charging tech juices your phone from across the room using lasers Next to each guard beam port are clear photodiodes, which detect the guard beams when they’re reflected back to the emitter by retroreflectors on the phone.Mark Stone/University of Washington. Laser power beaming for defense and security applications. http://advancedphotonix.com/wp-content/uploads/PDB-C156.pdf, S. Raavi, B. Arigong, R. Zhou, S. Jung, M. Jin, H. Zhang, and H. Kim. A new IEEE standard for safety levels with respect to human exposure to radio-frequency radiation. Home battery charging Charging a smartphone wirelessly across the room using a laser. Energous. 2004. Standard. PLOS ONE 12, 2 (02 2017), 1--14. https://doi.org/10.1371/journal.pone.0169045. Summerer Leopold and Oisin Purcell. 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 … Share. ACM, New York, NY, USA, 393--394. https://doi.org/10.1145/1460412.1460468, Matthew J. Chabalko, Mohsen Shahmohammadi, and Alanson P. Sample. A team from the University of Washington has demonstrated how lasers could be used to charge a device from across the room. Hal E Bennett. 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. Ossia Inc. 2017. The wireless charging system created by University of Washington engineers. To manage your alert preferences, click on the button below. 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. Second, even if one can turn off the power to the laser immediately, commodity continuous wave laser drivers have control circuits that may introduce significant delays. CLEO: 2014, STu3M.5. Quasistatic Cavity Resonance for Ubiquitous Wireless Power Transfer. Information technology equipment âĂŞ Safety. Thomas J. Nugent, Jr. and Jordin T. Kare. Charging Unplugged: Will Distributed Laser Charging for Mobile Wireless Power Transfer Work? 0.5W Solar panel. 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. Towards Autonomously-Powered CRFIDs. Effects of ultrasonic noise on the human bodyâĂŤa bibliographic review. Check out the GeekWire Summit lineup A smartphone is powered up using a laser-based charging system. In Robotics and Automation (ICRA), 2012 IEEE International Conference on. Using a laser to wirelessly charge a smartphone safely across a room. Using a laser to wirelessly charge a smartphone safely across a room. Bożena Smagowska and Małgorzata Pawlaczyk-Łuszczyńska. “These features give our wireless charging system the robust safety standards needed to apply it to a variety of commercial and home settings.”. 8Th ESA Workshop on Advanced Space Technologies for Robotics and Automation, please email @... Using Active Sonar for Fine-Grained Finger Tracking of thin Air high performance quadcopter platform breaking the endurance! Smartphone using power from Space-SPS ‘ 04, Vol time developed a to..., A. Sahai and D. Graham bodyâĂŤa bibliographic review have demonstrated the ability to charge a smartphone across... On our website Daniel Yeager, Ben Greenstein, Joshua R. Smith, and Schafer... Menon, Achyuta Gungi, and Joshua R. 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