SINGAPORE: A Singaporean scientist has invented a battery of smart contact lenses inspired by the movie Mission Impossible.
The fourth film in the franchise featured an agent wearing contact lenses capable of facial recognition and eye tracking.
Lee Seok-woo from the School of Electrical and Electronic Engineering at Nanyang Technological University in Singapore’s expertise in battery components led to his research in the field of wearable technology.
They realized that smart contact lenses would require batteries that would be safe and compact, which would be important in modernizing these devices because these contact lenses are extremely thin (1.5 mm), so users The size and flexibility of these batteries are important to prevent discomfort.
Lee Seok-woo said that the thickness of this battery is about 0.2 mm. It is about twice the size of a human hair.
The battery created by Lee and his team can be powered by a biocompatible salt-water solution, an alternative to lithium-ion batteries containing flammable materials.
This new battery can be charged using the traditional wire method or the chemical method. The battery is coated with glucose and when it is immersed in a saline solution, the glucose reacts with sodium and chloride to charge the battery.
However, the battery can be charged in a more unusual way.
According to Lee, tears also contain glucose. Which means that the wearer’s tears can also charge the battery when these contact lenses are worn.