【摘要】：在當今能源緊缺,環(huán)境污染的嚴峻形勢下,新一代照明光源LED(發(fā)光二極管,Light Emitting Diode)以其獨特的優(yōu)勢,在各個行業(yè)均得到了廣泛應用。然而,如何對LED進行高效的配光設計,以滿足各個應用領(lǐng)域?qū)φ彰鳠艟叩囊?成為目前LED照明領(lǐng)域亟待解決的重大課題。為了實現(xiàn)LED照明系統(tǒng)的高效率、小型化,需要針對LED光源進行二次配光設計。本課題是在非成像光學與自由曲面理論基礎上,針對大尺寸以及RGBW全彩LED光源的光學系統(tǒng)設計進行研究。具體研究內(nèi)容如下:研究自由曲面面型的設計方法,基于邊緣光線理論、能量守恒定律和幾何光學基本定律,采用計算過程和編程簡單的ODE(Ordinary Differential Equation)法,設計了一款照度均勻的平凸透鏡;采用幾何求解法,設計了一款全內(nèi)反射準直透鏡;基于試錯法,設計了手電筒變焦透鏡和非對稱洗墻燈透鏡。針對大尺寸LED光源的變焦透鏡,將ODE自由曲面法和試錯法相結(jié)合,設計了一款用于舞臺燈照明的變焦透鏡組,實現(xiàn)了聚光和泛光狀態(tài)都均勻的照明效果;在現(xiàn)有手電筒結(jié)構(gòu)基礎上,用全內(nèi)反射(TIR)結(jié)構(gòu),成功設計了一款遠射程的手電筒變焦透鏡。針對RGBW全彩LED光源的舞臺燈照明,為了解決光束角單一和操作困難的缺陷,提出一種由調(diào)焦片和TIR透鏡組合的變焦透鏡系統(tǒng)。并針對RGBW光源用于舞臺燈照明時混光差和光斑不均勻的現(xiàn)象,提出了一種非規(guī)則六邊形復眼透鏡陣列結(jié)構(gòu)。為了解決洗墻燈的遠照射距離和高均勻度不能同時兼顧的難題,提出了非對稱透鏡結(jié)構(gòu)。針對洗墻燈照明時容易出現(xiàn)的光斑分層和黃斑現(xiàn)象,提出了一種新型勻光結(jié)構(gòu)。成功設計出一款光斑均勻、投射距離遠的洗墻燈透鏡。所有設計的產(chǎn)品都開模并測試,實際的測試效果與軟件仿真結(jié)果基本吻合,驗證了所提出方案的準確性與可行性。
[Abstract]:Under the severe situation of energy shortage and environmental pollution, LED (Light emitting Diode), a new generation of lighting light source, has been widely used in various industries because of its unique advantages. However, how to design highly efficient light distribution for LED to meet the requirements of lighting in various application fields has become an important task to be solved in the field of LED lighting. In order to realize the high efficiency and miniaturization of LED lighting system, it is necessary to design the secondary light distribution for LED light source. Based on the theory of non-imaging optics and free-form surface, the optical system design of large size and RGBW full-color LED light source is studied in this paper. The main contents are as follows: the design method of free-form surface is studied. Based on the theory of edge ray, the law of conservation of energy and the fundamental law of geometry optics, the ODE (Ordinary Differential Equation) method of simple calculation and programming is adopted. A flat convex lens with uniform illumination is designed, a total internal reflection collimation lens is designed by geometric solution, and a flashlight zoom lens and an asymmetric wall light lens are designed based on trial and error method. Aiming at the zoom lens of large size LED light source, a zoom lens group for stage lamp illumination is designed by combining ODE free-form surface method with trial and error method. Based on the existing flashlight structure and total internal reflection (TIR) structure, a long range zoom lens of flashlight is successfully designed. In order to solve the problems of single beam angle and difficult operation, a zoom lens system is proposed for the stage lamp illumination of RGBW full-color LED light source, which is composed of a focusing plate and a TIR lens. An irregular hexagonal compound lens array structure is proposed to solve the problem of mismatch and uneven spot when RGBW light source is used for stage lamp illumination. In order to solve the problem that the long irradiating distance and high uniformity of wall-washing lamp can not be taken into account simultaneously, an asymmetric lens structure is proposed. In this paper, a new uniform light structure is proposed to deal with the phenomenon of lamina delamination and macula. Successfully designed a uniform spot, projection distance away from the wall lamp lens. All the designed products are open and tested, and the actual test results are in good agreement with the simulation results of the software, which verifies the accuracy and feasibility of the proposed scheme.
【學位授予單位】：江蘇大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM923.34

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