Digital cameras typically require lenses to focus incoming light on an image sensor. While technology has continually improved, allowing for more compact camera systems, they are nonetheless limited by physics. A lens can only be so small, and the distance between the lens and a sensor so short. This is where 'lensless' cameras come in. Unburdened by the physical limitations of optical design, lensless cameras can be much smaller. Professor Masahiro Yamaguchi of the Tokyo Institute of...


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