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Development of new spatial distribution index to evaluate quality of complex lighting environment: Focusing on unevenness and direction of light

Research Project

Project/Area Number 18K04474
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 23020:Architectural environment and building equipment-related
Research InstitutionNational Institute for Land and Infrastructure Management

Principal Investigator

MIKI Yasuhiro  国土技術政策総合研究所, 住宅研究部, 室長 (90356014)

Co-Investigator(Kenkyū-buntansha) 山口 秀樹  国土技術政策総合研究所, 建築研究部, 主任研究官 (60411229)
吉澤 望  東京理科大学, 理工学部建築学科, 教授 (40349832)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords光環境 / 暗さ / 明るさ / 空間分布 / 印象評価 / 構造方程式モデリング / むら / 方向性 / 定量的評価構造 / 複雑な光環境 / 印象評価構造 / 共分散構造分析 / 空間分布指標 / 光のむら / 光の方向性 / 可視化 / 省エネルギー / 快適性 / 総合評価
Outline of Final Research Achievements

The purpose of this study is to develop a spatial distribution index that evaluates impression evaluation of complex lighting environment by focusing on the “unevenness” and the “direction” of light in indoor spaces. Subject evaluation experiments were carried out in some actual living-dining rooms and small experimental office room with various lighting environments, followed by structural equation modeling. In the quantitative evaluation structure from the perception of light to comprehensive impression evaluation of preference or comfort, it was shown that when the perception of spatial distribution of light occurs, brightness and dimness are independent and interact with each other on the premise of dimness. From the relationship between evaluation results and luminous quantities, some proposed indices using spatial illuminances were examined.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果の学術的意義は、室内空間のどこにどのように明るさと暗さがあるかという “中空の光の位置”が、居住者にとっての様々な印象や快適性に影響する点に着目して指標化を検討した点にある。空間内の位置を考慮した適切な光の空間分布は、快適性等の向上と、現在社会的に要請が強い省エネルギーの両立を可能とし、社会的意義も大きいと考えられる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (4 results)

All 2020 2019

All Presentation (4 results)

  • [Presentation] 居室の複雑な光環境における行為・印象・知覚の定量的評価構造2020

    • Author(s)
      三木 保弘、小笠原 圭吾、重田 美菜子、山口 秀樹、吉澤 望
    • Organizer
      日本建築学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 視覚認知を用いた立方体面の離散的配置による光の場の表示図法2020

    • Author(s)
      三木 保弘
    • Organizer
      日本図学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 空間全体にわたる光環境の可視化2019

    • Author(s)
      三木保弘, 山口秀樹,吉澤望, 重田美菜子
    • Organizer
      照明学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 光環境の空間分布特性に関する基礎研究 ―評価グリッド法による居間の定性的評価構造の把握―2019

    • Author(s)
      重田美菜子, 吉澤望, 三木保弘, 山口秀樹
    • Organizer
      照明学会
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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