Most modern lighting operation is fairly straightforward – switches flip on/off, maybe even dim. More recently connected bulbs have offered the additional benefits of wireless settings, and some even ...

With two light barriers closely positioned one after the other it is possible to establish in which direction they have been crossed. If, for example, you place it at the entrance of the toilet then ...

Today I would like to present the turbine-powered optical isolator, a steampunk-sounding bit of hardware that only allows light to pass in one direction. That, I must admit, is a sentence I never ...

When we interpret a shaded picture as a three-dimensional (3D) scene, our visual system often needs to guess the position of the light source in order to resolve a convex-concave ambiguity. For more ...

Do you sell things on Etsy or occasionally throw something up on Ebay or Craigslist? Would you like to know the secret to taking better product photos that help you sell your items, rather than hinder ...

Researchers use circularly polarized light to control the direction of exciton polaritons in 2D semiconductors, enabling new tools for nanoscale photonics. (Nanowerk Spotlight) Directing light along ...