Holographic out-of-focus lens, manufacturing method and equipment

The invention belongs to the technical field of visual optics, and particularly relates to a holographic out-of-focus lens, a manufacturing method and equipment. The lens comprises a substrate and a holographic film layer arranged on the substrate; forming a plurality of holographic lenses in the holographic film layer; the lens comprises a central visual field area, and the holographic lenses are discretely distributed on the periphery of the central visual field area and used for reflecting light rays which come from the user side and contain pattern information for correction, so that the light rays form convergent light rays, a plurality of discrete pattern virtual images for correction are formed on the front side of the retina of a user, and defocus stimulation is formed. The holographic out-of-focus lens is combined with an image source arranged on a user side, so that a plurality of discrete pattern virtual images for correction can be formed on the front side of a retina while the retina of a user no