Design and development of an LED-artificial sunlight source system capable of controlling spectral power distribution

2008 Fiscal Year Final Research Report

• Project/Area Number: 18380147
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Agricultural environmental engineering
• Research Institution: The University of Tokyo
• Principal Investigator: FUJIWARA Kazuhiro The University of Tokyo, 大学院・農学生命科学研究科, 准教授 (30211535)
• Co-Investigator(Kenkyū-buntansha): YANO Akira 島根大学, 生物資源科学部, 准教授 (70292670)
• Project Period (FY): 2006 – 2008
• Keywords: 発光ダイオード / 分光分布 / 太陽光 / 人工光源 / 光生物学研究

Research Abstract

地表面における太陽光の分光エネルギー分布(光のスペクトル)に近い光を基準光として照射可能であり,かつピーク波長の異なる複数種の発光ダイオードへの印加電圧をそれぞれ調節することにより,光生物学研究において重要な波長範囲について分光エネルギー分布を任意にかつ動的に制御できるような世界初の光源システムを開発した。本光源システムは,照射面積に制限はあるものの,従来作出不可能であった多様な光環境を高い再現性を担保しながら作出できることから,光生物学研究の発展に貢献しうるものである。

Research Products

• [Journal Article] An LED-artificial sunlight source system available for light effects research in flower science (2007)
  • Author(s): Fujiwara, K., T. Sawada, S. Goda, Y. Ando, A. Yano
  • Journal Title: Acta Hortic 755 Pages: 373-380
  • Peer Reviewed
• [Journal Article] Design and development of an LED-artificial sunlight source system prototype capable of controlling relative spectral power distribution (2006)
  • Author(s): Fujiwara, K., T. Sawada
  • Journal Title: J.Light & Visual Environ 30(3) Pages: 170-176
  • Peer Reviewed
• [Presentation] Fourth Prototype of an LED- Artificial Sunlight Source System Capable of Controlling Spectral Power Distribution (2009)
  • Author(s): Fujiwara, K., T. Asada, T. Sawada, A. Yano
  • Organizer: 6th International Symposium on Light in Horticulture
  • Place of Presentation: Tsukuba ; Oral
  • Year and Date: 20090000
• [Presentation] Controllable Spectrum Portable Lighting System using LEDs with 32 Different Peak Wavelengths (2009)
  • Author(s): Yano, A., K. Fujiwara
  • Organizer: 6th International Symposium on Light in Horticulture
  • Place of Presentation: Tsukuba ; Poster
  • Year and Date: 20090000
• [Presentation] An LED-artificial sunlight source system available for light effects research in flower science (2007)
  • Author(s): Fujiwara, K., T. Sawada, S. Goda, Y. Ando, A. Yano
  • Organizer: International symposium on quality management in supply chains of ornamentals
  • Place of Presentation: Bangkok, Thailand ; Oral
  • Year and Date: 20070000
• [Presentation] Development of an LED-artificial sunlight source system capable of controlling relative spectral power distribution (2006)
  • Author(s): Fujiwara, K., T. Sawada
  • Organizer: 27th International Horticultural Congress & Exhibition
  • Place of Presentation: Seoul, Korea ; Oral
  • Year and Date: 20060000
• [Book] 光生物学研究に利用可能な分光分布制御型LED擬似太陽光光源システム(アグリフォトニクス) (2008)
  • Author(s): 富士原和宏, 分担執筆
  • Total Pages: 228-236
  • Publisher: シーエムシー出版