[Infostock Daily=Reporter Park Sang-in] Professor Ha Jin-yong of Sejong University's Department of Electronic Information and Communication Engineering developed next-generation wireless charging technology based on infrared rays and succeeded in registering domestic patents.
The infrared-based long-distance wireless charging technology, which was developed and registered this time, is a technology that transmits energy without loss even at a distance of more than a few meters (m), unlike the existing contact wireless charging method or RF-based long-distance wireless charging technology that is valid only at a short distance. It is a technology that can use infrared rays harmless to the human body made in semiconductor light amplifiers and simultaneously charge a large number of electronic devices depending on the wavelength band used at the same time.
The technology was published in the journal Optics Express in May last year, a prominent journal in the field of optics. Since the announcement of the paper, Sejong University has been receiving inquiries and cooperation suggestions on technology from the world's leading high-tech IT companies, and has also completed overseas patent applications.
"The patent registration has provided a way to respond to Huawei's recently announced laser-based smartphone charging technology with pure domestic technology," Professor Ha said.
After receiving his Ph.D. from Cambridge University, Professor Ha took a post-doctoral course at the Wellman Center for Optical Medicine at Harvard Medical School and was appointed to Sejong University in 2013.
Reporter Park Sang-in si2020@infostock.co.kr
