• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of Novel Transmissive Light-Diffusing Material based on the Control of Disorder

Research Project

Project/Area Number 19K22062
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 26:Materials engineering and related fields
Research InstitutionOsaka University

Principal Investigator

SAITO Akira  大阪大学, 工学研究科, 准教授 (90294024)

Project Period (FY) 2019-06-28 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsナノ構造 / 乱雑さ / 透過光 / モルフォ蝶 / ディフューザー / 採光窓 / バイオミメティクス / 照明 / ディフューザ― / 作製 / 構造色 / プロセス / 生物模倣 / ナノ / 光材料 / 透過 / 建築 / 制御 / 材料
Outline of Research at the Start

本研究の目的は、応募者が研究してきた「乱雑さの制御」に基づく、新たな「透過型」の光材料開発である。本材料は、外部の光を「高透過で」「広角に」通し「色づかない」理想的な透過特性をもつ。通常、上の3条件は並立不可能で、なぜなら屈折(色分散あり)も散乱(低透過)も不適なためである。しかしモルフォ蝶の特異な光特性(「高反射」の干渉ながら虹色でなく「広角に」「単色」)を応用すると、3条件並立は原理的に可能となる。そこで本研究では、これまでモルフォ型「反射材料」で蓄積した「計測、電磁場解析による設計、ナノ加工・作製技術」を集約し、新規な透過型光材料の特性を実証し、さらに最適化・応用展開を進める。

Outline of Final Research Achievements

This project aims for the development of a new transmissive light-diffusing material based on the unique optical properties of Morpho butterflies, especially "nano-disorder". A new "Morpho-type light diffuser" having "high transmittance, wide-angle spread, and no color dispersion" at the same time was enabled by contriving a "nanoscale random structure" limited at the incident interface of the material. After feedback among the design, trial production and verification, it showed performance close to the design value of "transmittance of 85%, FWHM 66° in angular spread, and no wavelength dispersion", and it was found that it surpasses the conventional-type diffusers in both transmittance and diffusivity. We also confirmed anisotropic diffusion that was enabled by the anisotropic structural design, which was difficult with the conventional type. From the above points, we were able to demonstrate the effectiveness of the Morpho-type optical diffuser.

Academic Significance and Societal Importance of the Research Achievements

「高透過率・広角拡散・波長分散なし」を並立する従来にない「モルフォ型透過光拡散材」について、構想だった当初段階から、設計・実作による基本性能の実証ができた。これにより、理想的な採光窓、およびディフューザーへ開発の道筋が開けた。冒頭の3条件を並立できるだけでなく、フィルム状でコンパクトな上、特に拡散後の光形状制御が可能な点は、従来型に全くない特長である。まず省エネルギーで価値が高い上、ディフューザーは照明への応用に大きな意義がある。特に明るさ・光効率に加えて演色性、つまりカラーレンダリングにおいて色再現性の高さ、の点で従来の照明に対する大きな変革になり得る。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (33 results)

All 2022 2021 2020 2019

All Journal Article (14 results) (of which Peer Reviewed: 10 results,  Open Access: 2 results) Presentation (15 results) (of which Int'l Joint Research: 9 results,  Invited: 8 results) Book (2 results) Patent(Industrial Property Rights) (1 results) Funded Workshop (1 results)

  • [Journal Article] Novel optical applications inspired by the Morpho butterfly’s coloration: technology transfer from reflection to transmission2022

    • Author(s)
      A. Saito, K. Yamashita, T. Hattori, and Y. Kuwahara
    • Journal Title

      Jpn.J.Appl.Phys.

      Volume: 61 Issue: SD Pages: SD0801-SD0801

    • DOI

      10.35848/1347-4065/ac571d

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 反射でなく透過で役立つモルフォチョウの光学特性2022

    • Author(s)
      齋藤彰
    • Journal Title

      まてりあ(日本金属学会)

      Volume: 61

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Daylight window based on the nano-disorder inspired by Morpho butterflies’ coloration2021

    • Author(s)
      A. Saito, K. Yamashita, T. Shibuya, and Y. Kuwahara
    • Journal Title

      J. Opt. Soc. Am. B

      Volume: 38 (5) Issue: 5 Pages: 1532-1537

    • DOI

      10.1364/josab.422426

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Demonstration of a diffraction-based optical diffuser inspired by the Morpho butterfly2021

    • Author(s)
      K. Yamashita, K. Kunitsu, T. Hattory, Y. Kuwahara, A. Saito
    • Journal Title

      Opt. Express

      Volume: 29 (19) Issue: 19 Pages: 30927-30936

    • DOI

      10.1364/oe.436193

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 化学掲示板:モルフォ蝶の青い翅をヒントに明るい採光窓を考案2021

    • Author(s)
      齋藤彰
    • Journal Title

      化学

      Volume: 76 (7) Pages: 73-73

    • Related Report
      2021 Annual Research Report
  • [Journal Article] New Relationship between Structural Color Materials and Nanoimprint Lithography2020

    • Author(s)
      齋藤彰、山下和真、桑原裕司
    • Journal Title

      Vacuum and Surface Science

      Volume: 63 Issue: 11 Pages: 580-585

    • DOI

      10.1380/vss.63.580

    • NAID

      130007938050

    • ISSN
      2433-5835, 2433-5843
    • Year and Date
      2020-11-10
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Elucidating the mystery of Morpho-blue using in-plane randomness: toward simple nanofabrication2020

    • Author(s)
      K. Yamashita, M. Fukihara, Y. Hirai, Y. Kuwahara, A. Saito
    • Journal Title

      Jpn.J.Appl.Phys.

      Volume: 59 (5) Issue: 5 Pages: 052009-052009

    • DOI

      10.35848/1347-4065/ab8c19

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Optical analysis on the Morpho butterfly’s in-plane randomness using three-dimensional FDTD simulations2020

    • Author(s)
      K. Yamashita, Y. Kuwahara, A. Saito
    • Journal Title

      Proc. SPIE.

      Volume: 11374 Pages: 5-5

    • DOI

      10.1117/12.2558469

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Biomimexpo20192020

    • Author(s)
      齋藤彰
    • Journal Title

      Biomimetica

      Volume: 3 Pages: 25-26

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] 構造色を用いたバイオミメティクス:光材料の現状と展望2020

    • Author(s)
      齋藤彰、山下和真、桑原裕司
    • Journal Title

      金属

      Volume: 90(5) Pages: 384-391

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] 総説: バイオミメティクスとは何か?昆虫工学2020

    • Author(s)
      齋藤彰
    • Journal Title

      昆虫と自然

      Volume: 55(7) Pages: 2-4

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Biomimeticsフランスの動向:Biomimexpo20182019

    • Author(s)
      齋藤彰
    • Journal Title

      Biomimetica

      Volume: 2 Pages: 44-46

    • Related Report
      2019 Research-status Report
  • [Journal Article] 第三の色「構造色」~生物の多彩な戦略と、意外な応用2019

    • Author(s)
      齋藤彰
    • Journal Title

      アカデミスト

      Volume: 1 Pages: 12-13

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] 生物学と工学で見る電気系技術者のためのよく分かるバイオミメティクス モルフォ蝶2019

    • Author(s)
      齋藤彰
    • Journal Title

      月刊オーム

      Volume: 106 Pages: 30-31

    • Related Report
      2019 Research-status Report
  • [Presentation] 反射でなく透過にも広く役立つ、モルフォ蝶の乱雑ナノ構造2022

    • Author(s)
      齋藤彰
    • Organizer
      2022年第1回ナノインプリント技術研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Realistic design to fabricate the daylight window inspired by Morpho butterfly's optical property2022

    • Author(s)
      A. Saito, J.Ohga, K.Yamashita, T.Hattori, Y. Kuwahara
    • Organizer
      SPIE Smart Structures + NDE
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 蝶のナノ構造に基づく新たな透過型光材料2022

    • Author(s)
      齋藤彰
    • Organizer
      応用物理学会 次世代リソグラフィ技術研究会ワークショップ
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Novel design of optical diffuser inspired by the Morpho butterfly2021

    • Author(s)
      A. Saito, K.Yamashita, T.Hattori, Y. Kuwahara
    • Organizer
      34th International Microprocesses and Nanotechnology Conference (MNC2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of a Morpho butterfly-inspired optical diffuser with high controllability2021

    • Author(s)
      K.Yamashita,Y. Hirai, Y. Kuwahara, and A. Saito
    • Organizer
      34th International Microprocesses and Nanotechnology Conference (MNC2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Demonstration of a diffraction-based optical diffuser: inspiration from the Morpho butterfly’s nanostructure2021

    • Author(s)
      Kazuma Yamashita, Kentaro Kunitsu, Takuma Hattori, Yuji Kuwahara, and Akira Saito
    • Organizer
      47th Micro and Nano Engineering Conference (MNE 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 生物の「表面」がもつ驚きの光機能と、その応用 ~蝶の色から建築まで~2021

    • Author(s)
      齋藤彰
    • Organizer
      表面真空学会 市民講座
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 生物の優れた光学特性に学ぶ表面技術 ~反射から透過へ, 発色から採光まで~2021

    • Author(s)
      齋藤彰
    • Organizer
      表面真空学会 実用新技術セミナー
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Optical analysis on the Morpho butterfly’s in-plane randomness using three-dimensional FDTD simulations2020

    • Author(s)
      A. Saito, K.Yamashita, Y. Kuwahara
    • Organizer
      SPIE Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fabrication of a novel optical diffuser inspired by the Morpho butterfly2020

    • Author(s)
      K.Yamashita, K.Kunitsu, Y.Kuwahara, and A. Saito
    • Organizer
      MNC 2020 (33rd MNC)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Simplification of 3D nanodesign inspired by Morpho butterfly’s randomness2020

    • Author(s)
      K.Yamashita, Y. Kuwahara, and A. Saito
    • Organizer
      RIE Cooperative Research Workshop
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Concept of the Workshop "Living MateriArchitecture"2020

    • Author(s)
      Akira Saito
    • Organizer
      Workshop Living MateriArchitecture
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Investigation of the remaining mystery on in-plane randomness of the Morpho-blue using FDTD simulations; toward easier nano-fabrication design2019

    • Author(s)
      K.Yamashita, M. Fukihara, Y. Hirai, Y. Kuwahara, and A. Saito
    • Organizer
      32nd Inter'l Microprocesses and Nanotechnology Conference, MNC2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 陣羽織の羽根は誰のもの?2019

    • Author(s)
      齋藤彰
    • Organizer
      兵庫県立人と自然の博物館: 企画展「JAPAN COLOR」
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Biomim'expo 2019と、その周辺2019

    • Author(s)
      齋藤彰
    • Organizer
      バイオミメティクス研究会19-3
    • Related Report
      2019 Research-status Report
    • Invited
  • [Book] バイオミメティクス・エコミメティクス―持続可能な循環型社会へ導く技術革新のヒント―2021

    • Author(s)
      齋藤彰(分担執筆)
    • Total Pages
      367
    • Publisher
      CMC出版
    • ISBN
      9784781315638
    • Related Report
      2020 Research-status Report
  • [Book] ナノインプリント技術ハンドブック(Chap13, p12-16)2019

    • Author(s)
      齋藤彰
    • Total Pages
      802
    • Publisher
      オーム社
    • ISBN
      9784274224485
    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] 積層薄膜片2022

    • Inventor(s)
      齋藤彰、山下和真、國津健太郎、大谷紘平、渡辺恵悟、紺野義一
    • Industrial Property Rights Holder
      齋藤彰、山下和真、國津健太郎、大谷紘平、渡辺恵悟、紺野義一
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-029842
    • Filing Date
      2022
    • Related Report
      2021 Annual Research Report
  • [Funded Workshop] Workshop on Living MateriArchitecture2020

    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-07-04   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi