Stereoscopic display apparatus use a holographic phase distribution formed from two-dimensional images

A method of forming a hologram, comprising:

• a 3-dimensional information forming step of classifying a plurality of objects to be expressed into groups and forming 3-dimensional information;
• an image forming step of forming a plurality of 2-dimensional images of each of said plurality of objects classified into the groups from the 3-dimensional information formed by said 3-dimensional information forming step;
• and
• an exposing step of holographically recording said plurality of 2-dimensional images expressed in said image forming step onto a recording medium.

A stereoscopic display apparatus of a hologram, comprising:

• 3-dimensional information forming means for classifying a plurality of objects to be displayed into groups and forming 3-dimensional information;
• image forming means for forming a plurality of 2-dimensional images for each of said plurality of objects classified into the groups from the 3-dimensional information formed by said 3-dimensional information forming means;
• phase distribution calculating means for calculating a phase distribution at a hologram forming surface from said plurality of 2-dimensional images formed by said image forming means;
• hologram expressing means for expressing the phase distribution obtained by said phase distribution calculating means onto the hologram forming surface;
• and
• wave front converting means for irradiating a reference light to the phase distribution expressed by said hologram expressing means and converting the reference light into the optical wave front, thereby displaying a solid image.

A stereoscopic display apparatus of a hologram, comprising:

• 3-dimensional information forming means for classifying a plurality of objects to be displayed into groups and forming 3-dimensional information;
• image forming means for forming a plurality of 2-dimensional images for each of said plurality of objects classified into the groups from said 3-dimensional information formed by said 3-dimensional information forming means;
• exposing means for holographically recording said plurality of 2-dimensional images expressed by said image forming means onto a recording medium;
• and
• wave front converting means for irradiating a reference light to the recording medium obtained by said exposing means and converting the reference light into the optical wave front, thereby displaying a solid image.