| Japanese English |
| About holography |
The current 3D imaging technology has already been put to practical use. However, 3D imaging with an enhanced sense of reality, where people far away seem to be nearby, is being studied, as a future communication technology.
The basic concept of the current 3D technology is to deceive the stereognostic senses of people. If this deception is perfect, there is no issue, but people perceive stereognostic sensation using several senses such as parallax, focus adjustment, and focus convergence of eyes.
As the current 3D imaging technology stimulates parts of several senses, it is believed that asthenopia may be caused by viewing and listening to images over long periods of time. Furthermore, it is believed that optic developmental disability is caused in infants who watch 3D images. Holographic technology has a history of half a century and is fundamentally different from conventional 3D technology. Holography completely reproduces the light that is photographed by the subject. As a result, we do not require glasses. Furthermore, it stimulates all the human stereognostic senses and we can see hidden areas when we move the angle of view, as the solid image is completely reproduced.
| About computer holography |
| Classic optical holography is based on photographic technology. In other words it is the technology of photographing stereognostic pictures of the subject using a film of high resolution. Hence it is impossible to display an aerial view of objects, as is easily accomplished by computer graphics, or to transmit the pictures through the network and record them on digital media, unlike digital images. Computer holography completely digitizes the optical holography. The above processing, previously impossible by classic optical holography, becomes possible by computer holography. Therefore, it is the ultimate digital imaging technology. However, the scale of the necessary data handling is too vast to put it into practice. In addition, because physical resolution at the micron level is necessary for reproduction, until recently, we were unable to actually form a computer holographic image with a pleasant appearance. In such a background, in this project, we developed a technique to calculate holographic images using a method of handling data of superlarge scale, and successfully created beautiful holographic images by laser lithography. This 3D computer holographic image is a static image reproduced with a single color. However, the natural 3D image with a greater feeling of depth fundamentally different from the conventional 3D images will surprise the observer, and will be appreciated worldwide. |
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