23 September 2015 Electronic holographic device based on macro-pixel with local coherence
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Abstract
Holography has been regarded as one of the most ideal technique for three-dimensional (3D) display because it records and reconstructs both amplitude and phase of object wave simultaneously. Nevertheless, many people think that this technique is not suitable for commercialization due to some significant problems. In this paper, we propose an electronic holographic 3D display based on macro-pixel with local coherence. Here, the incident wave within each macro-pixel is coherent but the wave in one macro-pixel is not mutually coherent with the wave in the other macro-pixel. This concept provides amazing freedom in distribution of the pixels in modulator. The relative distance between two macro-pixels results in negligible change of interference pattern in observation space. Also it is possible to make the sub-pixels in a macro-pixel in order to enlarge the field of view (FOV). The idea has amazing effects to reduce the data capacity of the holographic display. Moreover, the dimension of the system is can be remarkably downsized by micro-optics. As a result, the holographic display will be designed to have full parallax with large FOV and screen size. We think that the macro-pixel idea is a practical solution in electronic holography since it can provide reasonable FOV and large screen size with relatively small amount of data.
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Woonchan Moon, Woonchan Moon, Jaebeom Kwon, Jaebeom Kwon, Hwi Kim, Hwi Kim, Joonku Hahn, Joonku Hahn, } "Electronic holographic device based on macro-pixel with local coherence", Proc. SPIE 9626, Optical Systems Design 2015: Optical Design and Engineering VI, 96261K (23 September 2015); doi: 10.1117/12.2191408; https://doi.org/10.1117/12.2191408
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