Reflective plate, planar lamp and planar lamp fixture including the same

摘要

A directional prism reflective plate includes a prism surface (11) and a smoothing plane (12). A plurality of prism bodies (111) are arranged on the prism surface (11). The prism bodies (111) are continuously arranged in continuous zigzag form, and symmetrically or asymmetrically arranged relative to the center plane. Respective cross-section triangles of the prism bodies (111) have same shape and area, the distances from the vertexes of the cross-section triangle to the smoothing plane (12) are gradually reduced, so as to reflect the sunlight entirely. It is also provide a planar lamp and a planar lamp fixture including the reflective plate.