Should we make artificial snow with higher resolution and reaction speed beyond humans?

It has a structure that mimics the human eye, and the reaction speed is higher than that of the human eye, including 460 million optical sensors per 1cm ² , and research on artificial eye that realizes theoretical ultra-high resolution is underway.

The Hong Kong University of Science and Technology research team is developing an artificial eye that mimics the structure of the human eye. Inside the artificial eye, an artificial retina is included along with a nanoscale optical sensor, and the optical sensor measures the amount of light that has passed through the lens in front of the artificial eye. The wire attached to the back of the artificial retina acts as the optic nerve in the eyeball that sends the signal received by the sensor to the external circuit.

This artificial eye does not have a telephoto function or night projection ability, but it is explained that it is capable of exerting a higher function than the real human eye. Humans respond to changes in lighting at a rate of 40 to 150 milliseconds. By comparison, artificial snow is capable of responding in 30 to 40 milliseconds faster than this, and works in dark places. The artificial eye is characterized by a dome-shaped artificial retina like a human retina, which realizes a 100-degree field of view, not 150 degrees that humans have.

In addition, the artificial retina has 460 million optical sensors per 1cm ² built-in. Considering that the human eye has 10 million light-sensing cells per 1 cm ^2, it is theoretically able to recognize higher resolution than the human eye. However, because the wire that connects to the back of the retina is still 1 millimeter thick, only 100 wires are placed behind the artificial retina, and the result is a 100-pixel image.

In addition, in order to make the artificial eye high-resolution, the research team is trying to connect a thinner wire to the artificial eye using a magnetic field, as if it were surgery. However, one researcher expressed the view that the current method of making micropixels is not practical, and that hundreds of nanowires work without problems, but the method of using millions of wires is wrong. It is pointed out that in order to become an eye beyond humans, it is necessary to figure out an efficient way to arrange large amounts of small wires. Related information can be found here .