KA Unnikrishna Menon, Achyuta Gungi, and Balaji Hariharan. In 2011 International Conference on Space Optical Systems and Applications (ICSOS). In Robotics and Automation (ICRA), 2012 IEEE International Conference on. The research was funded by the National Science Foundation, the Alfred P. Sloan Foundation and Google Faculty Research Awards. 2015. TEC1-12706. https://www.digikey.com/product-detail/en/advanced-thermal-solutions-inc/ATS-60000-C1-R0/ATS1376-ND/1285090, Sony. 2000. In 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC). 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. To accomplish this, the … February 21, 2018. F Steinsiek, KH Weber, WP Foth, HJ Foth, and C Schafer. 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. © 2021 University of Washington | Seattle, WA, Using a laser to wirelessly charge a smartphone safely across a room, Proceedings of the Association for Computing Machinery on Interactive, Mobile, Wearable & Ubiquitous Technologies, Molecular Engineering & Sciences Institute, Department of Electrical & Computer Engineering, Paul G. Allen School of Computer Science & Engineering, In pandemic milestone, UW brings COVID-19 vaccines to frontline health care workers, Bait and switch: Mislabeled salmon, shrimp have biggest environmental toll, UW announces Maggie Walker Deanship in the College of the Environment. PLOS ONE 12, 2 (02 2017), 1--14. https://doi.org/10.1371/journal.pone.0169045. The ACM Digital Library is published by the Association for Computing Machinery. 5166--5172. https://doi.org/10.1109/IROS.2011.6094731, Adafruit. Bożena Smagowska and Małgorzata Pawlaczyk-Łuszczyńska. Safety of Laser Products. Brent Griffin and Carrick Detweiler. Q. Liu, J. Wu, P. Xia, S. Zhao, W. Chen, Y. Yang, and L. Hanzo. 2011. Planar Retroreflector, In CLEO: 2014. 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. 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. USB 2.0 Standard. 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. The UW team’s prototype laser emitter. Home; UW Department of Electrical & Computer Engineering; Spotlights ; Using a laser to wirelessly charge a smartphone safely across a room. 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. (2009). 2004. These strips act … ([n. d.]). IEC 60825-1 2001. The next generation of nano-scale optical devices are expected to operate with Gigahertz frequency, which could reduce the shutter’s response time to nanoseconds, added Majumdar. 2014. (2017). “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. 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. 1074--1076. https://doi.org/10.1109/PVSC.2013.6744326, Rajalakshmi Nandakumar, Vikram Iyer, Desney Tan, and Shyamnath Gollakota. This is achieved by mounting a thin power cell to the back of a smartphone, which enables it to absorb power from the laser. 195. In 2013 Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS). 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. 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