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, we’ve reported on how companies have incorporated augmented reality displays into smart contact lenses. These devices typically use thin batteries with induction coils and metal wires, which can pose 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 NTU team’s battery is micrometer-thin and can be powered by tears, making it a safe and efficient solution for smart contact lenses. By harnessing the power of saline solution, the battery offers a more comfortable and convenient option for users. This breakthrough could pave the way for further advancements in wearable technology and revolutionize the field of vision correction.

Professor Lee Seok Woo showcased the lens battery developed by his team, highlighting its potential to enhance the functionality and usability of smart contact lenses. With this innovative battery, users can enjoy the benefits of augmented reality displays without compromising their eye health.

The NTU researchers’ work represents a significant step forward in the development of smart contact lenses. By eliminating the need for metals in the battery, they have addressed a crucial safety concern and opened up new possibilities for wearable technology. As the field continues to evolve, we can expect even more exciting innovations that will shape the future of vision correction and wearable devices.

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