Earlier, and perhaps more basic, LED masks usually provide just one primary colour treatment mode, such as red or blue, ...

As a result, purple and magenta are known as "nonspectral" colors, because they don't really exist as actual electromagnetic ...

Unlike typical infrared night-vision goggles, these contact lenses do not require a power source — and they enable the wearer to perceive different infrared wavelengths that show up in various ...

What is ultraviolet light, and where does it come from? Learn how UV radiation is classified, measured, and used in medicine, ...

Imagine a computer that does not rely only on electronics but uses light to perform tasks faster and more efficiently. A ...

Optical fibers with a hollow core, made of air instead of solid glass, are known as hollow-core optical fibers. In comparison ...

Researchers have improved upon techniques that use thin films to compress infrared light, demonstrating three advantages that make the films more useful for practical applications. The researchers ...

Could Mysterious Black Hole Burps Rewrite Physics?

Inspired by squid skin, scientists developed smart materials that shift color and infrared light - opening new paths for ...

Sir William Huggins directed his reflector, equipped with spectroscopic and photographic tools and located in his private ...

Nick Stone discusses some of the many ways in which light can be used for diagnostic and therapeutic applications ...