Researchers at the Nanyang Technological University (NTU) in Singapore have developed a groundbreaking micrometer-thin battery that can power smart contact lenses and be charged with tears, according to a university press release.
Contact lenses have long been used for vision correction, but with advancements in technology, companies have been 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, Interesting Engineering has reported on how companies have successfully incorporated augmented reality displays into smart contact lenses. These devices typically use thin batteries with induction coils and metal wires, which 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. This breakthrough innovation ensures the safety and comfort of users while still providing the necessary power for smart contact lenses.
The team’s micrometer-thin battery is powered by tears, making it a convenient and sustainable solution. By harnessing the natural moisture of the eye, the battery can be continuously charged without the need for external power sources or frequent replacements.
This development opens up exciting possibilities for the future of smart contact lenses, as it eliminates the limitations and potential risks associated with traditional battery technologies. With this new battery, users can enjoy enhanced functionality and improved comfort, paving the way for a new era of wearable technology.
Professor Lee Seok Woo showcased the lens battery developed by his team, highlighting its potential to revolutionize the field of smart contact lenses. The research findings have been published in a university press release, providing further details on this groundbreaking innovation.
The NTU researchers’ achievement represents a significant step forward in the development of wearable technology, offering a glimpse into a future where smart contact lenses can seamlessly integrate with our daily lives.