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 working on creating smarter versions that can connect to devices like smartphones and display information close 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 incorporated augmented reality displays into smart contact lenses. These devices typically use thin batteries with induction coils and wires made of metals, which pose risks to the user’s eyes.

Now, a research team led by Lee Seok Woo, an assistant professor at NTU’s School of Electrical and Electronic Engineering (EEE), has developed a battery that eliminates the use of metals. This breakthrough battery can be charged using tears, making it a safe and innovative solution for smart contact lenses.

The development of this micrometer-thin battery opens up new possibilities for the future of wearable technology. With the ability to power smart contact lenses without the need for traditional metal-based batteries, users can enjoy enhanced functionality and convenience while minimizing potential risks.

Professor Lee Seok Woo displayed the lens battery developed by his team, showcasing the potential of this groundbreaking technology. This innovation represents a significant step forward in the field of wearable electronics and highlights the ongoing efforts to make wearable devices safer and more user-friendly.

For more information on this exciting development, you can read the full article on NTU Singapore’s website.

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