Pinhole imaging is one of the earliest forms of #photography. A traditional pinhole camera lets light pass through a tiny hole in a lightproof box, projecting an inverted image of the outside scene onto the opposite surface inside. Inspired by pinhole imaging, researchers used laser light to form a tiny “optical pinhole” inside a nonlinear crystal, turning the infrared image into a visible image that a traditional silicon-based camera sensor can detect. With this setup, the researchers captured clear, wide-depth images without using any lenses, even in very low light. Read more at the link in our bio #WorldPhotographyWeek #pinholeimaging #science #lenslessimaging