發(fā)布時間：2018-04-26 23:09

  本文選題：LED + 自由曲面��； 參考：《浙江大學》2015年碩士論文

【摘要】：如今,隨著越來越多的國家以固態(tài)半導體照明逐漸取代白熾燈、鹵素燈等為主導的傳統(tǒng)照明,新一代照明光源LED的研究已經成為光學領域的新星。LED以其體積小、亮度高、功耗低、價格便宜、壽命長、節(jié)能環(huán)保等優(yōu)勢,在各個行業(yè)領域均得到了廣泛應用。然而,如何對LED進行高效的配光設計,以期其形成滿足各個應用領域要求的照明燈具,成為了一個亟待解決的重大課題�；谧杂汕娴腖ED二次配光元件,設計自由度高,能夠有效地約束LED的發(fā)光能量分布,并且相較于傳統(tǒng)的配光方式結構相對簡單,可以實現(xiàn)比較復雜的照明設計需要,具有非常巨大的研究價值。因此,本文主要針對照明領域中的兩個典型案例——準直照明與均勻照明,來探討如何為LED光源設計自由曲面光學系統(tǒng),具體研究內容如下：研究了自由曲面初始面形結構設計方法。首先根據(jù)幾何光學的基本定律,推導出自由曲面離散點計算的公式,然后又通過能量守恒定律建立LED光源與目標面之間的能量映射網格,并對旋轉對稱與非旋轉對稱結構的光學系統(tǒng)能量映射網格進行了逐一分析求解。此外,還通過兩個自由曲面光學系統(tǒng)的設計案例來驗證初始結構設計方法的準確性和可靠性。分別從LED探照燈光學系統(tǒng)設計與LED道路照明光學系統(tǒng)設計這兩個實例出發(fā),論述了準直照明光學系統(tǒng)與均勻照明光學系統(tǒng)的二次配光設計流程。并分別設計了一種反射與透射自由曲面相結合的新型準直系統(tǒng)以及一種可以實現(xiàn)均勻矩形斑照明的自由曲面透鏡。此外,還分別針對這兩種光學系統(tǒng),設計了兩種優(yōu)化方法,并進行優(yōu)化設計,最終均達到了比較理想的光學效果。
[Abstract]:Nowadays, as more and more countries replace incandescent and halogen lamps with solid state semiconductor lighting, the research of new generation lighting source LED has become a new star in the field of optics with its small size and high brightness. The advantages of low power consumption, low price, long life, energy saving and environmental protection have been widely used in various fields. However, how to design the LED with high efficiency in order to meet the requirements of various application fields has become an important task to be solved. The LED quadratic light distribution element based on free-form surface is designed with high degree of freedom, which can effectively restrain the luminous energy distribution of LED. Compared with the traditional light distribution mode, the structure is relatively simple, and it can realize more complex lighting design needs. It has great research value. Therefore, this paper mainly aims at two typical cases in the field of illumination-collimation lighting and uniform illumination, to discuss how to design a free-form surface optical system for LED light source. The main contents are as follows: the design method of the initial plane structure of free-form surface is studied. According to the fundamental law of geometric optics, the formula for calculating discrete points of free-form surface is derived, and then the energy mapping grid between LED light source and target surface is established by energy conservation law. The energy mapping meshes of optical systems with rotational and non-rotational symmetry structures are analyzed and solved one by one. In addition, the accuracy and reliability of the initial structural design method are verified by two design cases of free-form surface optical system. Based on the two examples of LED searchlight optical system design and LED road lighting optical system design, the secondary light distribution design flow of collimating illumination optical system and uniform illumination optical system is discussed. A new collimation system combining reflection and transmission free-form surfaces and a free-form lens which can realize the illumination of uniform rectangular speckle are designed respectively. In addition, two optimization methods are designed and optimized for the two optical systems.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TM923.34

【參考文獻】

相關期刊論文 前5條

1 張奕隆;;LED光源在現(xiàn)代景觀照明設計中的應用現(xiàn)狀[J];電子技術與軟件工程;2014年01期

2 李志敏;朱小清;汪然;薛平;;LED路燈的光學系統(tǒng)研究與設計[J];激光雜志;2009年05期

3 季卓鶯;邵紅;陳文成;陳大華;;汽車照明前沿科技的ISAL 2005[J];燈與照明;2005年04期

4 張保民;;中國太陽能光伏發(fā)電產業(yè)的現(xiàn)狀、問題及對策分析[J];中國高新技術企業(yè);2011年36期

5 大谷義彥;夏晨;;LED照明現(xiàn)狀與未來展望[J];中國照明電器;2007年06期

相關碩士學位論文 前2條

1 王慧鋒;基于DSP的大功率LED控制關鍵技術研究[D];廣東工業(yè)大學;2013年

2 夏宇昊;高光效單側入光LED背光模組的研究及關鍵技術[D];中國海洋大學;2013年

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本文編號：1808089