RETURN REFLECTION SHEET CAPABLE OF IMPROVING THE RETURN REFLECTION PERFORMANCE BY INCLUDING A CORNER CUBE TYPE STRUCTURE

摘要

PURPOSE: A return reflection sheet is provided to form a corner cube type reflective structure by laminating structures with the different optical axis to the upward and downward.;CONSTITUTION: A return reflection sheet comprises a plurality of corner cube type reflective structures. The corner cube type reflective structure is composed of the laminate of second structures(120,220) and first structures(110,210). The optical axis of the second structure and the first structure are the different direction. The adjacent sides of the second structure and the first structure each other meet at right angle. Angle between the optical axis of the optical axis of the first structure and the second structure figure are 3 -7 drawing. The included angle of the top tap of the second structure comes under to 0.978 times of the top included angle of the first structure to 1.022 times.;COPYRIGHT KIPO 2010