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17-09-2023, 10:21 AM
Osmond Chia
UPDATED 5 HOURS AGO
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scientists from the Nanyang Technological University (NTU) have developed a saline-powered battery small enough to fit under a lens, which could pave the way forward in the pursuit of smart contact lenses – the holy grail of augmented reality.
The team developed a flexible battery as thin as a human cornea, which stores electricity when it is immersed in a special saline solution, said Associate Professor Lee Seok Woo of NTU’s School of Electrical and Electronic Engineering, who has worked on the project since 2019.
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The battery can also receive roughly an hour’s worth of additional power while being worn, since such ions are also found on the liquid layer of a person’s eyes
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The contact lens battery is embedded along the sides of a soft lens to ensure that vision is not obstructed.
Early tests found that the battery is able to power a smart lens and send a signal continuously to a smartphone via Bluetooth for 12 hours.
The battery can also be charged up to 200 times
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There are no metals in the battery, and it relies on glucose and water to generate electricity, making the lens safe to wear
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The team, which published its research in June, has since filed a patent through NTU’s innovation and enterprise arm NTUitive and is working towards commercialising the invention.
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It will take many years before a smart lens that displays data to the cornea becomes a reality, but the industry could soon see high-tech lenses that are able to monitor its wearer’s health through glucose readings on the surface of the eye
https://www.straitstimes.com/tech/smart-...d-by-tears
UPDATED 5 HOURS AGO
......
scientists from the Nanyang Technological University (NTU) have developed a saline-powered battery small enough to fit under a lens, which could pave the way forward in the pursuit of smart contact lenses – the holy grail of augmented reality.
The team developed a flexible battery as thin as a human cornea, which stores electricity when it is immersed in a special saline solution, said Associate Professor Lee Seok Woo of NTU’s School of Electrical and Electronic Engineering, who has worked on the project since 2019.
......
The battery can also receive roughly an hour’s worth of additional power while being worn, since such ions are also found on the liquid layer of a person’s eyes
......
The contact lens battery is embedded along the sides of a soft lens to ensure that vision is not obstructed.
Early tests found that the battery is able to power a smart lens and send a signal continuously to a smartphone via Bluetooth for 12 hours.
The battery can also be charged up to 200 times
......
There are no metals in the battery, and it relies on glucose and water to generate electricity, making the lens safe to wear
......
The team, which published its research in June, has since filed a patent through NTU’s innovation and enterprise arm NTUitive and is working towards commercialising the invention.
......
It will take many years before a smart lens that displays data to the cornea becomes a reality, but the industry could soon see high-tech lenses that are able to monitor its wearer’s health through glucose readings on the surface of the eye
https://www.straitstimes.com/tech/smart-...d-by-tears
