[Joey] already has his early start on the decorations, with a house-sized light show using LED strips and a laser projector that ... This creates an interesting effect similar to some projects ...

The shadow effect is a result of nonlinear optics, a field studying how materials respond to intense light. Here, the green laser beam induced a localized change in the ruby crystal’s response ...

Goeroptics unveils DLP 3D printing light engine - supporting resolutions of 4K and 1080P with a 3W output power.