Researchers have developed an automated 3D printing method that can produce multicolor 3D microstructures using different materials. The new method could be used to make a variety of optical ...

Depending on the number of colors in your print job, it might take a bit of work to calibrate all the combinations. Two colors mean there will be two tests: A to B and B to A. But as you add more ...

(Nanowerk Spotlight) A new generation of lenses ('metalenses') is starting to replace bulky curved lenses with simple, flat surfaces that use nanostructures to focus light. These flat surfaces ...