Retroreflective film
DRIVE
February 2, 2011
The invention is related to a retroreflective film having a prismatic layer with retroreflective prism elements; a sublayer extending between its front surface and the retroreflective prism elements; wherein the retroreflective elements have a height h elements of less than 115µm and the sublayer has a thickness t sublayer less than 25 µm.
Discussion in the ATmosphere