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Caltech's 'Lensless Camera' Could Make Our Phones Truly Flat
Researchers at Caltech have devised an "optical phased array" chip that uses math as a substitute for a lens. By adding a time delay—down to a quadrillionth of a second—to the light received at different locations on the chip, it can change focus without a lens.
Could Caltech's 'Lensless Camera' Mean Flatter Phones?
Today's phones are so thin that the camera lens often can't help but bulge out a little bit. Researchers at Caltech might have the solution, though. It's a single-layer "lensless camera" capable of mimicking a traditional lens and sensor design.