可转向入射电磁波之光学装置;OPTICAL DEVICE FOR REDIRECTING INCIDENT ELECTROMAGNETIC WAVE

摘要

一种可转向入射电磁波之光学装置，用以转向入射之电磁波，可转向入射电磁波之光学装置包含干涉区域、光栅结构及反射镜，干涉区域具有第一侧及相对于第一侧的第二侧，光栅结构设置于干涉区域的第三侧，反射镜设置于第一侧。入射电磁波由第二侧或光栅结构进入干涉区域，且大部分地入射电磁波以相对于入射角度之预定角度离开干涉区域。;a grating structure arranged on a third side of the interference region;a mirror arranged at the first side.An incident electromagnetic wave is impinged into the interference region through the second side or through the grating structure or through a side opposite to the grating structure,and then a substantial portion of the incident electromagnetic wave leaves the interference region at a predetermined angle with respect to the incident direction.