METHOD FOR PRODUCING HOLOGRAM

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a hologram by which recording time can be reduced and an optical system for producing the hologram can be small-sized. SOLUTION: In this method for producing the hologram, a diffused screen image is outputted as object light on a first recording surface 12 via a lens 8' at the time of producing a master hologram. At the time of producing a slave hologram, a second recording surface 12" is arranged at an image forming position of the object light by the lens 8'. In this method, distance between the diffused screen 7' and the first recording surface 12 at the time of recording the master hologram 12' and distance between the master hologram 12' and the second recording surface 12" at the time of recording the slave hologram 12" can be made to be different. Accordingly the hologram can be produced by using a small-sized optical system by varying these distances, if necessary.