Speckle-free holography using time-multiplexing technique

• Project/Area Number: 23656234
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Electron device/Electronic equipment
• Research Institution: Tokyo University of Agriculture and Technology
• Principal Investigator: TAKAKI Yasuhiro 東京農工大学, 大学院・工学研究院, 准教授 (50236189)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: ディスプレイ / ホログラフィー / 立体表示 / スペックル / 時分割表示 / 質感 / 空間光変調

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.

Research Products

• [Journal Article] Speckle-free, shaded 3D images produced by computer-generated holography (2013)
  • Author(s): T. Kurihara
  • Journal Title: Optics Express Volume: 21 Issue: 4 Pages: 4044-4054
  • DOI: 10.1364/oe.21.004044
  • Peer Reviewed
• [Journal Article] Using electronic holography to generate speckle-free and shaded reconstructed images (2013)
  • Author(s): T. Kurihara and Y. Takaki
  • Journal Title: Proc. SPIE Volume: vol. 8644 Pages: 86440E-86440E
  • DOI: 10.1117/12.2003437
• [Journal Article] Shading of a computer-generated hologram by zone plate modulation (2012)
  • Author(s): T. Kurihara and Y. Takaki
  • Journal Title: Opt. Express Volume: vol. 20 Issue: 4 Pages: 3529-3540
  • DOI: 10.1364/oe.20.003529
• [Journal Article] Shading of holographic reconstructed image by two-dimensional amplitude modulation of zone plates (2012)
  • Author(s): T. Kurihara and Y. Takaki
  • Journal Title: Proc. SPIE Volume: vol. 8281 Pages: 16-16
  • DOI: 10.1117/12.907621
• [Journal Article] Speckle-free and grayscale hologram reconstruction using time-multiplexing technique (2011)
  • Author(s): Y. Takaki and M. Yokouchi
  • Journal Title: Opt. Express Volume: 19 Issue: 8 Pages: 7567-5779
  • DOI: 10.1364/oe.19.007567
  • Peer Reviewed
• [Presentation] Using electronic holography to generate speckle-free and shaded reconstructed images (2013)
  • Author(s): T. Kurihara
  • Organizer: Photonics West 2013, Practical Holography XXVII: Materials and Applications
  • Place of Presentation: The Moscone Center, San Francisco, California, USA
• [Presentation] スペックル除去とシェーディングを実現するホログラム表示法の提案 (2012)
  • Author(s): 栗原貴之,高木康博
  • Organizer: 3次元画像コンファレンス2012
  • Place of Presentation: 東京,早大
  • Year and Date: 2012-07-12
• [Presentation] Using electronic holography to generate speckle-free and shaded reconstructed images (2012)
  • Author(s): T. Kurihara and Y. Takaki
  • Organizer: Photonics West 2013, Practical Holography XXVII: Materials and Applications, Moscone Center
  • Place of Presentation: San Francisco, California, USA
  • Year and Date: 2012-02-02
• [Presentation] Shading of holographic reconstructed image by two-dimensional amplitude modulation of zone plates (2012)
  • Author(s): T. Kurihara and Y. Takaki
  • Organizer: Photonics West 2012, Practical Holography XXVI: Materials and Applications, Moscone Center
  • Place of Presentation: San Francisco, California, USA
  • Year and Date: 2012-01-21
• [Presentation] スペックル除去とシェーディングを実現するホログラム表示法の提案 (2012)
  • Author(s): 栗原貴之
  • Organizer: ３次元画像コンファレンス2012
  • Place of Presentation: 早稲田大学、東京
• [Presentation] Shading of holographic reconstructed image by two-dimensional amplitude modulation of zone plates (2012)
  • Author(s): T. Kurihara and Y. Takaki
  • Organizer: Photonics West 2012, Practical Holography XXVI: Materials and Applications
  • Place of Presentation: San Francisco, California, USA
• [Presentation] ゾーンプレートの2次元変調による3次元シェーディングを施したホログラム (2011)
  • Author(s): 栗原貴之,高木康博
  • Organizer: 3次元画像コンファレンス2011
  • Place of Presentation: 京都,京都工繊大
  • Year and Date: 2011-07-15
• [Presentation] ゾーンプレートの 2 次元変調による 3 次元シェーディングを施したホログラム (2011)
  • Author(s): 栗原貴之，高木康博
  • Organizer: ３次元画像コンファレンス2011
  • Place of Presentation: 京都工芸繊維大（京都）
• [Remarks] 映像情報メディア学会立体映像技術研究会(2013年3月4日開催、東京農工大学)において、本研究で開発したホログラフィー技術に関する見学会を開催した。
  • URL: http://www.tuat.ac.jp/~e-takaki