- 學位論文
LED投射燈防眩光格柵設計與應用之研究
The Design and Application of Anti-Glare Louver for LED Projection Lighting
摘要
展示空間與商場照明中，多以投射燈具來做重點照明的利器，但投射燈具卻會產生不舒適的刺眼眩光。為解決此問題，投射燈具應加裝防眩光產品，而市售防眩產品為抑制眩光，普遍以高吸收率的材料或高密度的網格來遮蔽光源，此方式卻也讓燈具效率整體大幅降低，造成能源的耗費。 因此本論文以商場照明中，較常使用之AR111投射燈具為設計之對象，針對防眩光格柵元件為旨，參考市售防眩產品，導入TRIZ方法，提出創新改善策略，透過光學軟體TracePro與照明軟體DIALux，進行光學模擬與照明品質分析，並製作出實體格柵元件，與市售兩款防眩光產品進行配光檢測。經模擬與實測結果證實，本研究設計之三款LED投射燈防眩光格柵，UGR統一眩光等級均小於10，為「不可察覺出」眩光狀態，燈具效率分別為77%、79%、81%，皆高於一般格柵燈具規定之60%標準，相較於市售防眩產品一提升比例為20%、22%、24%，市售防眩產品二提升比例為57%、59%、61%，較符合節能效益，且格柵元件另具備光束角度調整，可依使用需求彈性替換所需之光束角度，投射目標面均勻明亮，無不良殘影現象，提升更優良的照明品質。
並列摘要
Spotlights are commonly used in exhibition areas or shopping centers for accent lighting, but nevertheless, they can also generate a glare that makes our eyes uncomfortable. To resolve the problem, anti-glare products are used together with spotlights, and those anti-glare products commonly use materials with either a high absorption rate or a dense grid to shield the light source and thus suppress glare. Unfortunately, both approaches significantly reduce the efficiency of the fixture and waste energy. In the thesis, the investigator chose AR111 spotlight fixtures, the most commonly used type of spotlight fixtures in shopping centers, as design subjects. By referring to those anti-glare products currently available on the market and applying the TRIZ method, the investigator proposes novel improvement strategies for the anti-glare grid component. The investigator also used the optical software TracePro and the illumination software DIALux conduct optical simulation and illumination quality analysis. Actual grid components were developed according to the results and compared with two anti-glare products from the market for photometric detection. The simulation and the empirical test results suggest that all three types of LED spotlight anti-glare grids designed in this study had a unified glare rating (UGR) less than 10, i.e., glare was non-detectable; their fixture efficiencies were 77%, 79% and 81% respectively, which are all greater than 60%, the standard for general grid lighting fixtures. Compared with anti-glare Product 1 from the market, the three designs reached a level of enhancement of 20%, 22%, and 24% respectively, and compared with anti-glare Product 2 from the market, their levels of enhancement were 57%, 59%, and 61% respectively. These values suggest that the new designs presented in this study have better energy efficiency. Finally, the grid components presented here are equipped with a light beam angle adjustment design allowing the user to adjust the angle of the beam flexibly based on the need. Moreover, the surface of the spotlight is even, bright and without image retention, and therefore, the lighting quality can be much improved.