Researchers have used the centuries-old idea of pinhole imaging to create a high-performance mid-infrared imaging system without lenses. The new camera can capture extremely clear pictures over a ...
Scientists have developed a lens-free mid-infrared camera using a modern twist on pinhole imaging. The system uses nonlinear crystals to convert infrared light into visible, allowing standard sensors ...
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Ancient 4th-century pinhole concept reimagined in lens-free infrared camera design
Pinhole imaging, first described by philosopher Mozi in the 4th century BC, offered unlimited depth and no distortion. This modern adaptation extends those benefits into the mid-infrared range, where ...
A solar eclipse is a rare and spectacular celestial event. It happens when the Sun, Moon, and Earth align so that the Moon passes between the Sun and our home planet, blocking some or all of the Sun's ...
Researchers use laser light to form a tiny “optical pinhole” inside a nonlinear crystal, which also turns the infrared image into a visible image that a traditional silicon-based camera sensor can ...
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