Technology
Tiny, transparent chip could transform your smartphone into a professional-grade camera
An experimental two-dimensional semiconductor can harness the power of ambient light to serve as a "smart filter" and vastly improve the quality of photos taken with cheap cameras.
The platform, which measures 0.4 by 0.4 inch (1 by 1 centimeter), is made of a 100-by-100-pixel array that is just a few atoms thick — meaning the chip is transparent. The device was described in a study published March 18 in the journal Nature Communications.
Each of the 10,000 pixels in the filter is an "optoelectronic neuron," the name the scientists have given the structure they built. Each structure consists of a transparent phototransistor, which converts light particles into electrons, and a liquid crystal modulator that forms a layer when all pixels are combined. This layer was then connected to an array of electrodes.
This visual computing platform responds to ambient light and adjusts the pixels to make them partially transparent or opaque to reduce bright spots or glare selectively. In experiments, the scientists combined the smartphone camera with the filter to reduce glare in images taken with a smartphone camera.
Related: China develops new light-based chiplet that could power artificial general intelligence — where AI is smarter than humans
As well as opening the door to higher-quality smartphone images, this Technology can be used in sensing and detection systems, such as those found in autonomous vehicles, or to find tiny defects in robot assembly lines, the researchers said. These cost far too much for the average consumer and are used in more scientific and industrial settings.
"An inexpensive device measuring a couple of centimeters could make a low-powered camera work like a super-resolution camera," study co-author Aydogan Ozcan, a professor of electrical and computer engineering at UCLA, said in a statement. "That would democratize access to high-resolution imaging and sensing."
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