Researchers at the Nanyang Technological University (NTU) in Singapore have developed a groundbreaking battery that can power smart contact lenses and be charged with tears, according to a university press release. Contact lenses have come a long way in terms of technological advancements, with companies striving to create smarter versions that can connect to devices like smartphones and display information directly to the wearer’s eyes. However, these applications require the lenses to have an internal battery.
In the past, companies have managed to incorporate augmented reality displays into smart contact lenses using thin batteries with induction coils and metal wires. While effective, these batteries pose potential risks to the user’s eyes. To address this concern, a research team led by Assistant Professor Lee Seok Woo from NTU’s School of Electrical and Electronic Engineering (EEE) has developed a battery that eliminates the use of metals.
The micrometer-thin battery is powered by saline solution, making it safe and suitable for use in contact lenses. This innovative approach not only ensures the safety of the wearer’s eyes but also opens up new possibilities for the development of advanced smart contact lenses.
Professor Lee Seok Woo displayed the lens battery developed by his team, showcasing the potential of this groundbreaking technology. With this new battery, smart contact lenses could become even more comfortable and convenient for users, revolutionizing the way we interact with digital information.
The research conducted by NTU Singapore represents a significant step forward in the field of smart contact lenses and highlights the continuous efforts to improve wearable technology. As technology continues to advance, we can expect further breakthroughs that will enhance our daily lives and reshape our interactions with digital devices.