Linear light field projector

The invention discloses a linear light field projector and belongs to the technical field of a diffuser. The linear light field projector includes a surface array divergent light source and a light diffusion structure, wherein the surface array divergent light source consists of densely arranged light emitting points, a divergence angle of exiting light of each light exiting point is 5-50 DEG, thelight diffusion structure is composed of a first diffusion structure and a second diffusion structure, the first diffusion structure is a lens array structure, the second diffusion structure is a Finnel lens structure or a plano-convex lens structure, and the spacing between the surface array divergent light source and the second diffusion structure is equal to a focal length of the second diffusion structure. The linear light field projector is advantaged in that a horizontal divergence angle can be 50-150 DEG, a vertical divergence angle can be 1-40 DEG, and the outgoing light field is linearly distributed; diffusi