Optical integral prism and optical integrator device

The invention discloses an optical integral prism. The prism body comprises an incident surface and an emergent surface which are arranged oppositely, and a fully reflecting surface located between the incident surface and the emergent surface, wherein the incident surface is arranged at the bottom end of the prism body; the emergent surface is arranged at the top end of the prism body; the fullyreflecting surface is arranged at the side surface of the prism body; the contours of the incident surface and the emergent surface are polygon-shaped; the fully reflecting surface comprises a plurality of fully reflecting plane units; each fully reflecting plane unit comprises a triangular plane unit; and one vertex of the triangular plane unit is the vertex of the emergent surface and the othertwo vertexes of the triangular plane unit are the vertex of the incident surface. The invention also discloses an optical integrator device, which comprises an optical integral prism group, a supportsleeving the periphery of t