A lens-free system produces sharp mid-infrared images even in low light and over long distances, creating new opportunities ...

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 ...

Long before modern photography, the idea of capturing images through a tiny hole fascinated early thinkers. The ancient ...

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 ...

A box, room, or device (a darkened enclosure) that has a small hole (an aperture, maybe with a lens) through which light from external objects enters to produce an image on an opposite surface is ...