本文選題：DLP + 非均勻網(wǎng)格　； 參考：《浙江大學(xué)》2016年博士論文

【摘要】：論文首先回顧了超短焦投影技術(shù)的發(fā)展的現(xiàn)狀,介紹了超短焦投影相對于普通投影的巨大優(yōu)勢和良好的市場前景。同時(shí)詳細(xì)介紹了目前市場上的主流超短焦投影機(jī),指出了他們的不足。提出了“非均勻網(wǎng)格法”和“參數(shù)化設(shè)計(jì)法”兩種自由曲面設(shè)計(jì)方法。論文回顧了超短焦投影成像系統(tǒng)的現(xiàn)有的設(shè)計(jì)方法,對每種方法分析了優(yōu)劣勢,基于這些討論,給出了本文需要解決的問題。提出了折反射超短焦投影成像系統(tǒng)成像原理與像差控制的原理,對折反射超短焦投影成像系統(tǒng)的成像內(nèi)在機(jī)理以及每一種像差的產(chǎn)生原因和控制手段進(jìn)行了深刻的分析。接下來,詳細(xì)論述了旋轉(zhuǎn)對稱反射鏡成像系統(tǒng)物像關(guān)系,并以此為基礎(chǔ),詳細(xì)闡述了折反射系統(tǒng)初始結(jié)構(gòu)的構(gòu)建手段。最后,提出了應(yīng)用于超短焦投影成像系統(tǒng)設(shè)計(jì)的“像差校正法”,并針對“像差校正法”的不足提出了適用于一般情況的“通用設(shè)計(jì)法”。在以上理論基礎(chǔ)上,設(shè)計(jì)了LED照明的DLP折反射超短焦投影光引擎,并完成了模具品樣機(jī)的制造和測試。折反射超短焦投影光引擎樣機(jī)具有優(yōu)異的清晰度和很小的畸變,以及十分快捷的安裝調(diào)試速度。其易于加工制造的事實(shí)表明,折反射超短焦投影光引擎的設(shè)計(jì)完全達(dá)到了設(shè)計(jì)指標(biāo),同時(shí)具有優(yōu)異的容差性。系統(tǒng)輸出光通量390流明,色彩艷麗,很好的達(dá)到了設(shè)計(jì)要求。本文提出的主要?jiǎng)?chuàng)新如下：(1) 提出了折反射超短焦投影成像系統(tǒng)的“像差校正法”。反射鏡具有自身的成像規(guī)律,利用這個(gè)成像規(guī)律可以找到折射部分和反射鏡的匹配方式,即中間像。利用“像差校正法”,可以方便的基于對子午中間像的解析求解給出一種構(gòu)建旋轉(zhuǎn)對稱折反射超短焦投影成像系統(tǒng)良好初始結(jié)構(gòu)(同時(shí)兼具較低的系統(tǒng)復(fù)雜度和較少的像差)(2) 提出了折反射超短焦投影成像系統(tǒng)的“通用設(shè)計(jì)法”,利用本方法,可以得到任意入射平面內(nèi)的中間像,據(jù)此設(shè)計(jì)者可以選擇合適的中間像來構(gòu)建系統(tǒng)的初始結(jié)構(gòu)。對于凸面反射鏡的折反射超短距投影儀,盡管其子午中間像不再適用于初始結(jié)構(gòu)的構(gòu)建,所提出的方法仍然適用于初始結(jié)構(gòu)的構(gòu)建。(3) 提出了應(yīng)用于自由曲面照明設(shè)計(jì)的“非均勻網(wǎng)格法”。(4) 實(shí)現(xiàn)了LED照明的DLP折反射超短焦投影光引擎的設(shè)計(jì)、加工制造,完全達(dá)到設(shè)計(jì)標(biāo)準(zhǔn)。
[Abstract]:In this paper, the development of ultrashort focus projection technology is reviewed, and the great advantage and good market prospect of ultrashort focus projection compared with ordinary projection are introduced. At the same time, it introduces the mainstream super-short-focus projectors in the market, and points out their shortcomings. Two design methods of free surface are put forward, I. E. non-uniform mesh method and parameterized design method. In this paper, the existing design methods of ultrashort focal projection imaging system are reviewed, and the advantages and disadvantages of each method are analyzed. Based on these discussions, the problems to be solved in this paper are given. The imaging principle and aberration control principle of refraction ultrashort focal projection imaging system are put forward. The imaging intrinsic mechanism of refraction ultrashort focal projection imaging system and the causes and control methods of each aberration are deeply analyzed. Then, the object image relationship of rotating symmetric mirror imaging system is discussed in detail, and based on this, the construction method of the initial structure of the refractive reflection system is described in detail. Finally, the "aberration correction method" applied to the design of ultrashort focal projection imaging system is proposed, and the "universal design method", which is suitable for general situations, is proposed to overcome the shortcomings of the "aberration correction method". On the basis of the above theory, the DLP refraction ultra-short focus projection light engine for LED lighting is designed, and the manufacture and testing of the mould prototype are completed. The prototype of the reflex ultrashort focal projection light engine has excellent clarity, very small distortion, and very fast installation and debugging speed. The fact that it is easy to process and manufacture shows that the design of the refraction ultrashort focal projection light engine is up to the design target and has excellent tolerance. The system output luminous flux 390 lumen, bright color, very good to meet the design requirements. The main innovations in this paper are as follows: (1) an aberration correction method is proposed for refraction ultrashort focal projection imaging system. The mirror has its own imaging law, which can be used to find the matching method between the refraction part and the mirror, that is, the middle image. Using the aberration correction method, Based on the analytical solution of the meridian intermediate image, a good initial structure (both with low system complexity and less aberration) for constructing a rotation-symmetric refractive reflection ultrashort focal projection imaging system is presented. (2) in this paper, we propose a new method for constructing a rotation-symmetric refractive reflection ultrashort focal projection imaging system. (2) A "Universal Design method" for reflecting Ultra-short focus projection Imaging system, By using this method, the intermediate image in the arbitrary incident plane can be obtained, according to which the designer can choose the appropriate intermediate image to construct the initial structure of the system. For a projector with a convex reflector's refraction ultrashort, although its midmeridian image is no longer suitable for the construction of the initial structure, The proposed method is still applicable to the construction of the initial structure. (3) Non-uniform mesh method is proposed for the design of free-form surface lighting. (4) the design and manufacture of DLP refraction ultra-short focus projection light engine for LED illumination is realized. Fully meet the design standards.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2016
【分類號】：TH741.5

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