Contrary to popular belief, most property crimes—including burglaries and package theft—happen during the day, not under cover of darkness. But night still brings unique challenges: fewer people ...

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 ...

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 ...

Drivers are always cautious of speed limits and speed cameras during the daytime, but at night, it can be easy to forget. Although there are signs pointing out speed cameras along dark night routes, ...

These days, there are cameras everywhere, and I’m not talking about the smartphone in your pocket that you consciously pull out to take a snap or a video. I’m talking about surveillance cameras. From ...

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 ...