本研究先以LED閱讀燈為例，發展出修正式模糊決策實驗室分析法(修正式FUZZY DEMATEL)的方法，其先初步分類為七項最重要技術準則，透過每個準則所具有的相關技術字以及常態化數值，常態化數值是依照多篇專利技術文件經由斷詞斷字系統之重要技術、功能、元件關鍵字出現次數與該高度相關專利群組全文總字數之比值。先計算準則間重複或定義相同的技術字常態化數值，再計算準則間常態化數值佔有之比例，依所計算出的常態化數值比例值，進而在用模糊集合搭配三角形歸屬函數，判定比例值之差距位於兩個三角形交集的模糊地帶，採用α-cut的觀念，計算出模糊值，然後來評估決定準則間的相互影響程度0~4之值。接著再依照修正式DEMATEL運算步驟求出總關係影響矩陣、直接/間接關係圖及因果圖，完成修正式FUZZY DEMATEL的步驟。因果圖可協助判斷準則間的相互受影響程度以及哪些準則屬於較為核心技術準則的判定。再將修正式FUZZY DEMATEL之總關係影響矩陣加入修正式網路程序分析法(修正式ANP)中，形成修正式FUZZY DANP。
本研究先針對LED閱讀燈之三種設計改良方案進行優先評選次序，再將修正式FUZZY DANP與修正式DANP各自所得之優先設計改良方案作比較分析。透過修正式FUZZY DAMATEL輔助修正式ANP之修正式FUZZY DANP法所得之優先評選次序計算結果可較符合實際情形。此外，本研究亦將修正式FUZZY DANP實際應用於LED投射燈，經由LED投射燈產品之相關文獻探討及各項專利分析，將LED投射燈的第一層技術分為1. 燈具散熱結構， 2. LED燈源主體結構及3.整體支撐結構三項主要技術，再將第二層技術分為支架設計、底座結構、鰭片設計、導熱結構、LED燈罩設計、LED燈源架構配置及電子元件控制技術等7項技術，並將此7項技術做為評選產品設計方案最重要的評估技術準則。接著透過修正式FUZZY DEMATEL所分析出的因果圖來解釋上述七項技術準則的重要度及關連度。本研究將LED投射燈的第一層技術的三項主要技術組成具有相依性的三個創新設計方案，以修正式FUZZY DANP步驟計算三項創新設計方案的優先評選次序。最後演算得到LED投射燈三個創新設計方案之優先權值，其優先權值之順序為方案B>方案C>方案A，也就是說方案B之「整體支撐結構+LED燈源主體結構」為LED投射燈之最優先選擇的創新改良產品設計方案。經本文修正式FUZZY DANP優先評選次序研究以後，本研究再利用修正式TRIZ發明法做創新改良設計，針對創新設計方案B之整體支撐結構相關的支架設計做改良與LED燈源主體結構相關的LED燈源架構配置之燈光反射罩設計做創新改良設計，並得到兩個創新改良設計結果，最後可得到新設計之LED投射燈。

Taking LED reading lamp for example, the study develops a modified fuzzy decision-making trial and evaluation laboratory analysis (fuzzy DEMATEL) method, which is preliminarily classified into seven most important technical criteria, and adopted through the related technical words in each criterion and their normalized numerical values. Normalized numerical value is the ratio of appearance frequency of important techniques, functions and component keywords in multiple patent technique documents obtained through term and word segmentation system, to the total number of words of the patent group with high relativity. The normalized numerical values of repeated technical words or those with the same definition in various criteria are calculated first, and then the percentage of the normalized numerical values in various criteria is calculated. According to the calculated percentage of the normalized numerical values, fuzzy set is matched with trigonometric membership function in order to determine that the gap between percentage values is located at the fuzzy zone where two triangles intersect. The α-cut concept is employed to calculate the fuzzy value. Then the paper evaluates the value determining the value of the extent of mutual influence 0~4 among criteria. After that, according to the modified DEMATEL computing steps, the paper finds the general relational influence matrix, direct/indirection relationship diagram and causal diagram, completing the steps of the modified fuzzy DEMATEL. Causal diagram can help judge the extent of mutual influence among criteria and which criteria belong to more important technical criteria. The general relational influence matrix of the modified fuzzy DEMATEL is added to the modified analysis network process (modified ANP) to form the modified fuzzy DANP. Focusing on the three design improvement projects of LED reading lamp, the study compares and analyzes the prioritized design improvement projects acquired by the modified fuzzy DANP and the modified DANP respectively. The calculation result of priority order for selection acquired by the modified fuzzy DANP of the modified ANP with assistance from the modified fuzzy DANP better meets the real situation. Besides, the study also practically applies the modified fuzzy DANP to LED projection light. Through exploration of the related literatures and patents of LED projection light products and analysis of different patents, the first-layer techniques of LED projection light is divided into three major techniques: 1. heat dissipation structure of light; 2. main body structure of LED light source; and 3. overall support structure. The second-layer techniques are divided into seven techniques, namely support design, base structure, fin design, heat conduction structure, LED lampshade design, LED light source structure configuration, and electronic component control technique. These seven techniques are taken as the most important technical evaluation criteria for selection of product design projects. After that, the causal diagram analyzed through the modified fuzzy DEMATEL explains the significance of and relativity between the above seven technical criteria. The study clusters the three main first-layer techniques of LED projection light to be three innovative design projects with dependence, and employs the modified fuzzy DANP steps to calculate the priority order of three innovative design projects for selection. Finally, through algorithm, the priority values for the three innovative design projects of LED projection light are obtained, with the order of priority values being Project B > Project C > Project A. It implies that Project B’s “overall structure of light + main body structure of LED light source” is the most prioritized choice of innovatively improved product design project of LED projection light. After studying the priority order for selection acquired by the modified fuzzy DANP, the study further uses the modified TRIZ invention method to make innovative improvement design. The design of support design relating to the innovative design Project B’s overall structure design is improved, and another innovative improvement design is made for the light reflecting lampshade for internal configuration of LED light source, relating to the main body structure of LED light source, thus resulting in two innovative improvement designs. Finally, a new design of LED projection light is acquired.

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