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    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/92411


    题名: 結合柱狀透鏡陣列之非成像車頭燈光型設計;Nonimaging Optical Design of Vehicle Headlamp Using Cylindrical Lens Array
    作者: 吳啟守;Wu, Chi-Shou
    贡献者: 光電科學與工程學系
    关键词: 柱狀透鏡陣列;光展量;截止線光型;擴散響應;線性位移不變;捲積;cylindrical lens array;etendue;cut-off light pattern;distribution function;linear shift-invariant;convolution
    日期: 2023-08-21
    上传时间: 2023-10-04 15:52:14 (UTC+8)
    出版者: 國立中央大學
    摘要: 本文是以一維結構柱狀透鏡陣列(Cylindrical Lens Array, CLA)用於折射式以及反射式光學元件,進行高對比度光型之設計。探討適用於狀透鏡陣列專屬的光型設計,盡量讓開展後的光型亮點往上移動,以增加近燈光型的對比度。
    結合柱狀透鏡陣列之折射式光學元件的設計,首先評估光源的光展量以及折射式光學元件的體積,找出適合用來塑造高對比光型的區塊。藉由分析折射式光學元件不同區塊所發出光束的發散角,並且考慮了柱狀透鏡陣列對於不同區塊所發出光線,在進行水平方向開展後,對於垂直方向上光型分布的影響。利用在垂直方向分布範圍較小的出光區域來設計截止線光型;而對於不利於塑造光型的區塊,為了能有效利用光源能量,本文將發散角較大的的光線導引至法規面上所規範的補光區。
    結合柱狀透鏡陣列之反射式光學元件的設計,利用反光杯對於光型設計的自由度高,探討專屬於狀透鏡陣列的光型設計。由於柱狀透鏡對於準直光線的光型擴散響應具有線性位移不變,可用反光杯產生的光型與柱狀透鏡陣列的擴散函數的進行捲積計算輸出的光型,此結果和模擬光型的相關性高達99.5%以上。
    ;In this thesis, a one-dimensional cylindrical lens array (Cylindrical Lens Array, CLA) is used for refractive and reflective optical elements to design high-contrast light patterns. Discuss the exclusive light pattern design applicable to the cylindrical lens array, and try to move the bright spot of the light pattern upward in order to increase the contrast of the near light pattern.
    In the design of the refractive optical element combined with the cylindrical lens array, first, evaluate the etendue of the light source and the volume of the refractive optical element, and find out the suitable segment for shaping the high-contrast light pattern. By analyzing the divergence angle of the light beams emitted by different segments of the refractive optical element, and considering the influence of the light emitted by the cylindrical lens array on the different segments, after the horizontal direction is developed, the influence on the vertical light pattern distribution. The cut-off line light pattern is designed by using the light output area with a small vertical distribution range; and for the segment that is not conducive to shaping the light pattern, in order to effectively use the energy of the light source, this thesis guides the light with a large divergence angle to the other surface to provide the fully illuminance.
    Combined with the design of the reflective optical element of the cylindrical lens array, the degree of freedom of the light pattern design is higher by using the reflector, and the light pattern design exclusive to the cylindrical lens array is analyzed. Since the cylindrical lens has a linear shift-invariant to the light pattern distribution response of the collimated light, the light type generated by the reflector can be convoluted with the distribution function of the cylindrical lens array to calculate the output light pattern. This result is related to the simulated light pattern. The NCC value is as high as 99.5%.
    显示于类别:[光電科學研究所] 博碩士論文

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