HOLOGRAM SCREEN AND ITS PRODUCTION

摘要

PROBLEM TO BE SOLVED: To provide a hologram screen which is excellent in color reproducibility of the videos reproduced on the hologram screen, allows the use of a laser beam of single color or laser beams of two colors (red, green) in production of the hologram elements constituting the hologram screen and is low in production cost and easy in production and a process for producing the same. SOLUTION: The video light made incident from a video projector is scattered and diffused on the hologram screen and is made into exit light, by which the videos are reproduced. The half-amplitude level of hologram spectroscopic spectra is >=200 nm. The hologram screen consists of the hologram elements manufactured by irradiating a photosensitive material 120 with both of the diffused light obtain. by a light diffusion body having a large light diffusion angle as object light 117 and non-diffused light as reference light 118 and forming interference fringes on this photosensitive material 120.