The company wants to build contact lenses that charge wirelessly and communicate with other devices

In a patent granted this month, Google shows off plans to build contact lenses that are powered by and communicate through light pulses. The patent, numbered 9158133, gives a peek on the role contact lenses can play in the future.

Google's contact lenses will be light-powered. Using embedded cells that turn light into an electronic current, these contact lenses don’t need wired charging. They can use solar power or harvest energy from a beam of light. The patent does not mention batteries so these contacts have to constantly generate power.

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