Computer-generated holograms for reconstructing multi 3D images by space-division recording method

Tomohisa Hamano; Mitsuru Kitamura

doi:10.1117/12.380003

17 March 2000 Computer-generated holograms for reconstructing multi 3D images by space-division recording method

Tomohisa Hamano, Mitsuru Kitamura

Proceedings Volume 3956, Practical Holography XIV and Holographic Materials VI; (2000) https://doi.org/10.1117/12.380003
Event: Electronic Imaging, 2000, San Jose, CA, United States

Abstract

In this report, computer-generated holograms (CGHs) that are able to reconstruct different 3D images in accordance with moving viewpoints are discussed as an application of electron beam printing CGHs. In previous Practical Holography conferences, image-type CGHs which are able to reconstruct 3D images under white light were reported. This time, utilizing the method of this fabrication, trial making of a CGH which is capable of reconstructing three different 3D images was implemented. To achieve this, the angle selectivity of the incident light to reconstruct the images was applied. In other words, to reconstruct three different images, three reference waves of which each incident angle was varied were selected and three kinds of interferogram data were merged to complete a multi-recorded CGH. The recorded images are horizontal-parallax-only images so that the CGH can be composed of some elemental CGHs which are horizontally-sliced, and so synthesizing three CGHs is achieved by placing elemental CGHs of three CGHs mutually. Therefore, a multi-recorded CGH by space-dividing was fabricated experimentally. As a result of fabricating a 10 mm X 18 mm sized CGH, it has been confirmed that three different 3D images can be observed separately in accordance with moving view points.

Citation Download Citation

Tomohisa Hamano and Mitsuru Kitamura "Computer-generated holograms for reconstructing multi 3D images by space-division recording method", Proc. SPIE 3956, Practical Holography XIV and Holographic Materials VI, (17 March 2000); https://doi.org/10.1117/12.380003

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