本文關(guān)鍵詞：基于tracepro的LED二次配光設(shè)計(jì)　出處：《湖北大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 非成像光學(xué) 自由曲面 LED透鏡

【摘要】：以LED照明為代表的半導(dǎo)體照明,經(jīng)歷了大概40年的迅速發(fā)展,至今已經(jīng)進(jìn)入高速發(fā)展時(shí)期,具有很多傳統(tǒng)光源不具備的優(yōu)點(diǎn),被認(rèn)為是21世紀(jì)最具有應(yīng)用價(jià)值的新型光源,正愈來(lái)愈多地應(yīng)用于背光、投影顯示、室內(nèi)外照明和新能源等諸多領(lǐng)域。 本文介紹了非成像光學(xué)的發(fā)展進(jìn)程,以及非成像光學(xué)在照明系統(tǒng)的應(yīng)用概況。本文詳細(xì)討論了非成像光學(xué)中的能量收集率,光學(xué)擴(kuò)展量,拉格朗日不變量在照明光學(xué)系統(tǒng)中的概念以及面間能量最大率與光學(xué)擴(kuò)展量,拉格朗日不變量之間的關(guān)系,為后面自由曲面的設(shè)計(jì)的算法奠定理論基礎(chǔ)。 同時(shí)本文對(duì)LED的配光器件進(jìn)行分類,并詳細(xì)的闡述了各個(gè)配光器件的性質(zhì),給出各個(gè)配光器件的母線方程；結(jié)合圓形和矩形光斑復(fù)合拋物面聚光器的設(shè)計(jì)實(shí)例,介紹了光學(xué)仿真軟件Tracepro的使用。 為了實(shí)現(xiàn)均勻的照明光斑分布,需要設(shè)計(jì)各個(gè)角度光斑均勻分布的透鏡,概述了一般自由透鏡的設(shè)計(jì)方法并對(duì)各個(gè)方法的優(yōu)缺點(diǎn)進(jìn)行討論,本文采取直接法設(shè)計(jì)旋轉(zhuǎn)對(duì)稱的自由曲面的LED透鏡的基本思路,為了簡(jiǎn)化計(jì)算,根據(jù)光源特性以及目標(biāo)照明平面的光斑分布,采用光能計(jì)算結(jié)合邊緣光線理論的設(shè)計(jì)方法,將二階非線性方程簡(jiǎn)化成一階擬線性偏微分方程,大大降低了求解難度�；谠摲椒ㄔO(shè)計(jì)了設(shè)計(jì)產(chǎn)生一個(gè)120°×60°的均勻矩形光斑透鏡,tracepro仿真結(jié)果可以看出光斑為矩形,邊緣光滑,光照均勻,光線接收率大于85%。
[Abstract]:Semiconductor lighting, represented by LED lighting, has experienced about 40 years of rapid development, and has entered a period of rapid development, which has many advantages that traditional light sources do not have. In 21th century, it is considered to be the most valuable new light source, which is more and more used in many fields, such as backlight, projection display, indoor and outdoor lighting and new energy sources. In this paper, the development of non-imaging optics and the application of non-imaging optics in lighting systems are introduced. The energy collection rate and optical spread in non-imaging optics are discussed in detail. The concept of Lagrange invariant in illuminating optical system and the relationship between the maximum energy rate and optical extension and Lagrange invariants lay a theoretical foundation for the design algorithm of the following free-form surface. At the same time, the light distribution devices of LED are classified, and the properties of each light distribution device are described in detail, and the generatrix equation of each light distribution device is given. The application of optical simulation software Tracepro is introduced in combination with the design examples of circular and rectangular optical spot composite parabolic concentrators. In order to realize the uniform distribution of illumination spot, it is necessary to design the lens with uniform distribution of light spots at all angles. The design method of general free lens is summarized and the advantages and disadvantages of each method are discussed. In this paper, we adopt the direct method to design the LED lens of rotation-symmetric free-form surface. In order to simplify the calculation, according to the characteristics of the light source and the spot distribution of the target illumination plane. The second order nonlinear equation is simplified into a first order quasilinear partial differential equation by using the design method of light energy calculation and edge ray theory. Based on this method, a 120 擄脳 60 擄uniform rectangular speckle lens is designed. The simulation results show that the spot is rectangular and the edge is smooth. The light is uniform and the receiving rate of light is more than 85.
【學(xué)位授予單位】：湖北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM923.34

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本文編號(hào)：1439834