Full-color rainbow hologram and the production manner

摘要

PURPOSE:To enable a full-color image to be confirmed when viewed from a specific position by using three plane type stereograms composed by using positive films obtained by color separation as original images as master holograms, and photographing the rainbow hologram. CONSTITUTION:Color continuous photographs are separated into a red, a green, and a blue component by using a color scanner to form positive continuous photographs corresponding to the respective images. Then the original images of the respective colors are placed at the position of an original image 39 in an optical system wherein a photographic dry plate 35 slants at alpha and a mask 36 has three slits (37a to 37c), and irradiated with laser light through a screen 38 to compose plane type holographic stereograms. Further, the rainbow hologram is composed of those holograms. The rainbow hologram which is formed as mentioned above is lighted with white light in the opposite direction from reference light to enable a full color stereoscopic image to be seen at the position where three slit images overlap with one another in front of the hologram.