REFLECTIVE ELEMENT FOR RETRO REFLECTANCE AND ARTICLES USING THE SAME

摘要

The present invention relates to a reflecting member for retro reflection and an application apparatus thereof. The reflecting member for retro reflection has a reflecting unit having a shape that a focal distance of reflected light gets shorter toward the inside of a surface of the reflecting unit. According to the present invention, the position for retro reflectance of an incident light is distributed over a wide area.