English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 80990/80990 (100%)
造訪人次 : 42691966      線上人數 : 1512
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋


    請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/83512


    題名: Optical model for LED die operated at UVC range of wavelength around 275 nm
    作者: 黎秋玉;Le, Thi Thu Ngoc
    貢獻者: 光電科學與工程學系
    關鍵詞: LED;UVC;光源模型
    日期: 2020-08-20
    上傳時間: 2020-09-02 15:44:57 (UTC+8)
    出版者: 國立中央大學
    摘要: 本論文提出了針對UVC波段之光源進行的二階光學設計,此設計擁有較佳的光學利用率及高均勻度之表現。擁有精準的光源模型對於後端透鏡設計是非常重要的一步,本論文採用之LED光源的模型是以中場理論為基礎再透過光學模擬軟體ASAP輔助計算所建立,該光源模型透過實驗與模擬計算NCC高達99%以上,證明該模型之是足夠精準的,最後利用ASAP進行光源之光追跡模擬設計與優化二階光學元件。在論文中我們根據光學利用率和均勻度兩項指標設計了兩種類型的透鏡,分別為TIR透鏡和菲涅爾透鏡。兩種透鏡在設計完成並打樣後還進行了相關光學表現之量測,並在最後針對兩種設計之量測結果再進行討論與評估。;This thesis presents the optical model for a type of LED emitting a wavelength of the 275 nm and the design of lenses that increase the ability to direct light into a given target area, which satisfy the requirements such as uniformity, optical utilization factor (OUF). By using high-precision simulation software, Advanced Systems Analysis Program (ASAP), the light model for LED is established in simulation and verification by empirical measurement. Light models of LEDs in simulations and experiments that match up to 99% are considered standard. This model can be used to design lenses for LED and predict the optical performance of light when passing through the lens in the simulation. In this work, we design two types of lenses for LED: TIR lens and Fresnel Lens based on the requirements of optical utilization factor (OUF) and uniformity in the target area. After the design, the lenses manufacturing process at the factory are conducted. Through experimental measurements, we obtain the optical performance of light. Finally, we compare the results achieved between simulation and experiment and discussion.
    顯示於類別:[光電科學研究所] 博碩士論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbHTML158檢視/開啟


    在NCUIR中所有的資料項目都受到原著作權保護.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 隱私權政策聲明