The Science Behind It All
IllumiNight works on the principle of retro-reflection, which bounces light rays around a 3D reflective surface to send the rays back in the direction of their light source. The components of our sticker that act as retro-reflectors are the glass beads, which allow light coming into the spheres to refract, or reflect, off the back of the spheres and leave in the same direction. Advantages of using glass beads are that they are cheap and can refract light in any orientation. These glass beads sprinkled on top of metallic paint are what make our reflective sticker reflect light to make surfaces shine brightly when light is shone on them in the dark.