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Proposal of guideline for retro-fitting of lighting to extend healthy life span of building stocks

Research Project

Project/Area Number 17K06677
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Architectural environment/Equipment
Research InstitutionChiba Institute of Technology

Principal Investigator

Mochizuki Etsuko  千葉工業大学, 創造工学部, 教授 (80458629)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords照明改修 / LED照明 / 文化財 / 全天球画像 / 印象評価 / 内装材 / 指向性 / 輝度分布 / 画像 / 被験者実験 / 照明環境 / VR / プロジェクター / 近代建築 / 重要文化財 / 有機EL照明 / 建築ストック / 照明 / 設備改修 / 歴史的変遷 / LED
Outline of Final Research Achievements

The objective of this task is to identify the lighting renovation method that retains the value of the building at original with consideration of the space use. The following two points were examined.
(1) Proper image presentation method that accurately expresses the atmosphere of the space, and (2) Effects of lighting conditions on interior surfaces and overall impression of the space.
In (1), spherical images were applied for the impression evaluation. It was identified that "color of the entire space" was hard to reproduce by spherical image, and the necessity to identify the luminance range to be expressed by spherical image that can give closer impression of the actual space. In (2), it was identified that the direction of illumination had no effect on the impression evaluation of interior materials with small surface irregularities, but that the impression evaluation was significantly different between incandescent lamp, LED, and OLED even at the same illuminance level.

Academic Significance and Societal Importance of the Research Achievements

後世に向けて建設当初の雰囲気を保持しつつ、また、新たな用途にも転用できるように重要文化財の照明改修を行う際に、考えられる影響を内装材・空間全体の見えの観点から検討した。また、空間の雰囲気を適切に表現・記録する手法についても検討した。
照明用光源が新規光源に置き換わった際には、同じ設定照度であっても、光源の種類(波長分布、光の指向性等)によって、内装材や空間の印象が有意に異なることを示した。また、空間の雰囲気を適切に伝える記録手法について、安価かつ簡易に行える方法で検討した。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (4 results)

All 2021 2020 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (3 results)

  • [Journal Article] EFFECTS OF CHROMATICITY DIFFERENCE FROM PLANCKIAN LOCUS <i>d<sub>uv</sub></i> OF LIGHTING ON SPATIAL BRIGHTNESS2021

    • Author(s)
      望月悦子
    • Journal Title

      Journal of Environmental Engineering (Transactions of AIJ)

      Volume: 86 Issue: 779 Pages: 51-58

    • DOI

      10.3130/aije.86.51

    • NAID

      130007977770

    • ISSN
      1348-0685, 1881-817X
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] 全天球画像を用いた空間呈示による印象評価の可能性2020

    • Author(s)
      児玉大輔、望月悦子
    • Organizer
      日本建築学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 複雑なテクスチャを持つ建築空間の写真による印象評価の可能性2019

    • Author(s)
      児玉大輔, 望月悦子
    • Organizer
      日本建築学会大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 照明改修が室内光環境の印象に与える影響 -光源種類による内装材の印象評価の違い-2018

    • Author(s)
      望月悦子
    • Organizer
      日本建築学会大会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2022-01-27  

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