3D paraxial virtual image display system

The invention discloses a 3D paraxial virtual image display system and belongs to the flight simulator virtual image display technical field. The display system includes a scene generation module, a fusion projection module and a display module; the scene generation module is used for generating left eye picture 2D video signals and right eye picture 2D video signals real time according to the positions of a left eye and a right eye; the fusion projection module is used for performing corrective fusion on the left eye picture 2D video signals and right eye picture 2D video signals, and converting the 2D video signals into corresponding 3D video signals, and projecting a left eye picture and a right eye picture to the display module; and the display module includes a 3D projection screen, a spherical reflecting mirror and 3D glasses, wherein the 3D glasses is polarized type 3D glasses. In the system, when a distant target appears in a scene, the lifelike depth perception of the distant target can be ensured based on a large equivalent imaging distance of the virtual image display system; and when a near object appears in the scene, the problem of near-end imaging distortion can be solved through 3D display technologies.