2012 Fiscal Year Final Research Report
Speckle-free holography using time-multiplexing technique
| Project/Area Number |
23656234
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
TAKAKI Yasuhiro 東京農工大学, 大学院・工学研究院, 准教授 (50236189)
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| Project Period (FY) |
2011 – 2012
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| Keywords | ディスプレイ / ホログラフィー / 立体表示 / スペックル |
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| Research Abstract |
A hologram display technique that provides speckle-free and shaded reconstructed images is realized. A three-dimensional object is composed of object points, and the object points are divided into plural object point groups that are displayed ina time-sequential manner. Each object point group consists of two-dimensional (2D) array of object points that are separated such that interference among the object points does not occur. Each object point group is generated by displaying a 2D array of zoneplates on a spatial light modulator. The amplitude distribution of the zoneplates is modulated two-dimensionally to control the angular intensity distribution of light emitted from the object points so that reconstructed images are shaded.
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