Two-step synthetic rainbow holography with 360° viewing angle

Most of circular viewing rainbow holograms are recorded on cylindrical film1'2, so couldn't act asthe master of embossed holograms. The hologram to be recorded on a plane holographic plate can solvethe problem3. But it is diffeult to realize a real circular slit image with large radius. In thispapers we propose a method to synthesize a rainbow holograms which can produce a non-abberat ionreconstructing image with large viewing range (360°).