Optic Device Mimics Human Retina

If artificial intelligence is able to think like a human brain, why do we feed it data like a normal computer? Scientists are addressing this question by considering the sensory input we humans receive and have developed an optic device inspired by the working of the human eye. Researchers recently published findings of their optical sensor, which could make robotic components far more efficient.

Using ultrathin layers of photosensitive perovskite material, normally adopted in solar cells, the optic device adapts its signals as it senses different intensities of light. Perovskites are chemical materials, composed of metal atoms carrying positive charges and oxygen or halide anions, carrying negative charges which layer into an interesting lattice.

Unlike solar cells, the optic device does not store and use the light provided as energy but instead responds to changes in illumination. In doing so, these new ‘retinomorphic’ sensors send signals to process the image in front of them based on the changes in light.

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