A lens-free system produces sharp mid-infrared images even in low light and over long distances, creating new opportunities ...
Pinhole cameras are not new; they have been around since the beginning of photography. The concept was around long before that. The ancient Chinese and Greeks understood the notion of a pinhole device ...
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 ...
Interesting Engineering on MSN
Ancient 4th-century pinhole concept reimagined in lens-free infrared camera design
A laser-driven “optical pinhole” unlocks distortion-free mid-infrared imaging for night vision and environmental monitoring.
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