Optical: systems and elements – Holographic system or element – For producing or reconstructing images from multiple holograms
Patent
1997-02-26
1998-06-02
Dzierzynski, Paul M.
Optical: systems and elements
Holographic system or element
For producing or reconstructing images from multiple holograms
359 9, 359 23, 359 24, 359 25, G03H 126, G03H 128, G03H 130, G03H 108
Patent
active
057609330
ABSTRACT:
In a method and apparatus for displaying a stereoscopic image, a plurality of 2-dimensional images having parallaxes in only horizontal directions are obtained and inputted when an object to be displayed is seen from different positions in the horizontal direction. The 2-dimensional image is divided in the vertical direction into 1-dimensional line images which are elongated in the horizontal direction. A phase distribution of a corresponding hologram segment is calculated from the pixels of the line image. The calculated phase distribution is displayed on a hologram forming surface of a phase displaying section using a display. A reproduction light is irradiated and converted into an optical wave front and is further enlarged in the vertical direction, thereby displaying a solid image. The 2-dimensional images are inputted by photographing the object by a plurality of cameras arranged in the horizontal direction. The 2-dimensional images can be also produced by interpolating calculations from two 2-dimensional images which were actually photographed. The 2-dimensional images which are used in the phase calculations are subjected to a process such as enlargement, reduction, or movement of the coordinate position, thereby adjusting the size and position of a solid image.
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Aritake Hirokazu
Ishimoto Manabu
Kato Masayuki
Nakashima Masato
Sato Noriko
Chang Audrey
Dzierzynski Paul M.
Fujitsu Limited
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