Holographic disc with an embedded sound chip

G - Physics – 03 – B

Patent

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Details

G03B 31/00 (2006.01) G02B 27/18 (2006.01) G02B 27/22 (2006.01) G03H 1/02 (2006.01) G03H 1/24 (2006.01)

Patent

CA 2435256

.cndot. A holographic projection device for displaying a 3-dimensional image comprises an elliptical holographic disc, and a cylindrical base having a diagonally-cut top portion. The elliptical holographic disc comprises a rigid planar substrate, a reflection-type hologram, and a sound chip for producing a voice or music effect. The cylindrical base comprises a point source of white light for illuminating the reflection-type hologram, and a sonic transducer for generating a sound. The reflection-type hologram projects an upright orthoscopic image having both horizontal and vertical parallaxes. The cylindrical base has the capability of detachably mounting the elliptical holographic disc so that different elliptical holographic discs can be interchangeably mounted on the cylindrical base. Each elliptical holographic disc has a distinct holographic image and a distinct voice or music effect. This invention relates to holographic projection devices for displaying a 3-dimensional image, and the principal use of the invention is for optical decoration.

Un dispositif de projection holographique pour diffuser une image tridimensionnelle comprend un disque holographique elliptique et une base cylindrique dont la partie supérieure est coupée en diagonale. Le disque holographique elliptique se compose d'un substrat rigide plan, d'un hologramme par réflexion et d'une puce de son pour produire un effet vocal ou musical. La base cylindrique comprend un point de source de lumière blanche pour illuminer l'hologramme par réflexion et un transducteur sonique pour générer un son. L'hologramme par réflexion projette une image orthoscopique droite ayant à la fois des parallaxes verticales et horizontales. La base cylindrique a la capacité de permettre le montage amovible du disque holographique elliptique de sorte que des disques holographiques elliptiques différents peuvent être montés indifféremment sur la base cylindrique. Chaque disque holographique elliptique a une image holographique distincte et un effet vocal ou musical distinct. Cette invention porte sur les dispositifs de projection holographique visant à projeter une image tridimensionnelle et sa principale utilisation est pour une décoration optique.

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