IMPROVED MICRO-SPHERE-BASED RETRO-REFLECTIVE ARTICLES WITH IMPROVED RETRO-REFLECTIVE BRIGHTNESS.

摘要

MICRO-SPHERE-BASED RETRO-REFLECTIVE ARTICLES CAN BE MADE THAT HAVE AN EXCEPTIONALLY HIGH RETROR-REFLECTIVE BRIGHTNESS, PARTICULARLY IN DIVERGENCY ANGLES OF UP TO 0.5, THROUGH THE SELECTION OF A LITTLE MICRO-SPHERES THAT HAVE SOME DIFFERENT DIFFERENCE.