Bio-inspired Device Captures Images by Mimicking Human Eye

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Source:  National Science Foundation; image by Kai Wang,
Source: National Science Foundation; image by Kai Wang,

August 6, 2023 | Originally published by National Science Foundation on July 18, 2023

Drawing inspiration from nature, Penn State scientists have developed a new device that produces images by mimicking the red, green, and blue photoreceptors and the neural network found in human eyes.

The research findings, reported in Science Advancesare fundamental breakthroughs in realizing perovskite narrowband photodetection devices — from materials synthesis to device design to systems innovation. The research was supported by seven grants from the U.S. National Science Foundation, listed at the end of this article.

“We borrowed a design from nature — our retinas contain cone cells that are sensitive to red, green, and blue light and a neural network that starts processing what we are seeing even before the information is transmitted to our brain,” said Penn State researcher Kai Wang.

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