Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens. of ...

When light moves from one medium to another as in the figure to the right, it changes direction. it is refracted .A double-periodic array of pairs of parallel gold nanorods is shown to have a negative ...

What's behind the target can make a tremendous difference in how well reflective sensors do their job. Consider a photoelectric sensor operating in simple diffused mode (i.e., as a proximity sensor).

Innovative plastics offer improved performance and wider viewing angles over existing anti-reflective plastics in the market. This plastic uses a nanotechnology method that creates a complex pattern ...