5:15 PM - 5:30 PM [19p-E319-15] Dual-View Aerial Signage Over an LED panel by Use of a Retro-Reflective Slit-Array 〇(B)Daiki Nishimura1, Hirotsugu Yamamoto1,2 (1.Utsunomiya Univ., 2.JST, ACCEL)