7 February 2008 Large viewing angle projection type electro-holography using new type mist 3D screen
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Proceedings Volume 6912, Practical Holography XXII: Materials and Applications; 69121D (2008); doi: 10.1117/12.765127
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States
Abstract
Recently, many type of 3-D displays are now being developed. We want to see 3-D moving image with comfortably and more expanded depth, Holography is different from the other 3-D display because natural stereoscopic image can be obtained. We have once developed a electro-holographic display using virtual image. But the viewing area is so small because the pixcel size of LCD is not so small. This time we developed the projection type electro-holographic display system. In the case of projection type holography [1], it needs to use the 3-D screen in order to project the reconstructed image clearly and viewing angle becomes wide. We developed the electro-holographic display system using mist 3-D screen. However, a reconstructed image with mist 3-D screen was flickered by gravity and flow of air. Then we considered to reduce the flicker of the image and we found that flicker could be reduced using flow controlled nozzle. Hence, at first we considered the most suitable shape of 3-D screen and then we constructed the array of flow controlled mist 3D screen. By the results of experiment we could get considerably high contrast 3-D moving image and get the viewing area more than 30°by this flow controlled nozzle attached new type mist 3-D screen and make clear the efficiency of this method.
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Koki Sato, Hongming Zhao, Kunihiko Takano, "Large viewing angle projection type electro-holography using new type mist 3D screen", Proc. SPIE 6912, Practical Holography XXII: Materials and Applications, 69121D (7 February 2008); doi: 10.1117/12.765127; https://doi.org/10.1117/12.765127
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KEYWORDS
3D displays

3D image reconstruction

3D image processing

Particles

Control systems

Distortion

Holography

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