LAMINATED WAVEGUIDE-TYPE HOLOGRAM RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To inexpensively provide a hologram recording medium in a small device size as a holographic color moving picture display element that can realize the most natural stereoscopic view. SOLUTION: Red, blue and green components of stereoscopic hologram information are overlapped with the core-clad interface of the individual waveguide of a reproduction-only multiplex hologram information recording medium where the reflection surface 3 of 45 degrees is given at an end face and the waveguide are overlapped in multiple layers to form a periodic scattering cause 7. Laser beams 1 having red, green and blue wavelengths are converged and are guided from the reflection surface 3. Waveguide light 4 in the waveguide is scattered by the periodic scattering cause 7 and a color stereoscopic hologram image is reproduced so that it can be viewed stereoscopically.