1258018 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種投影系統，特別是指一種光源模 組利用微結構進行處理的投影系統。 【先前技術】 , 系、、'先為現代生活中使用極為廣泛的電子顯示器。 , 司行唬商品發表或展示、學校教育、合、 際奋議， 丨』日 困 曰ϋ 、產品推銷及產業行銷均是使用投影系統做為 10 15 顯現ί念ί圖文說明的主要顯示設備。近年來，由於液晶 k不為及微米技術的成熟與發展，投影系統已不僅只是以 大型集會場合為主要發展㈣，投影系統更進一步地延伸 至個人日常生活各由 田中。例如台灣各大光電公司積極研究開 發的液晶顯示面板即A甘 為/、中一例，除此之外，投影系統可 應用的產品更早奋g n h 、 個人電腦、個人數位助理、家庭劇院 、數位相機，及杆叙^ ^ 力电话寻等各大熱門領域。可見相較於 傳統的fe極射線管顧 π ”，、員不裔，投影系統在現代社會活動之應 用，如行政、教育，i s θ A 甚至疋私人用品方面的潛力是極為可 硯的。然而，現行的措旦 奴〜系統設計仍未盡完善，使得上述 的珂景無法達成或县Μ田丄 每 —文果有限，從而限制現行投影系統可 貝施應用的範圍。 參閱圖1與圖2，分 μ ，刀別為以色序法（Color Sequential Method)操作的投蒂糸 ^ ，、、、、之兩見的實施例。其一實施例包 含一光源杈組5、一 ς ^ Θ ”、篆板組6，及一鏡頭模組7。該光源 相：組 5 即是一船庐旦〈么 又〜π統業界俗稱的光機構或光學引擎， 20 1258018 並包括一發氺, 、一勻光單元52，及一分色單元53。 其中，該勻井 包括一使該發光單元Η之投射光產 :㈣積分管521、一將該發光單元51之 集於該積分瞢如、 。 郇近该^光單元5丨之一端的橢球面鏡 522,及-使經該積衫521處理之投射光聚集至具有特定 大小之該顯像模組6的聚光鏡組523。該分色單元53為一 色_片，即是俗稱的色輪，其作用在於使該發光單元 “ 光&速切換成紅、綠、藍三原色。依序通過該顯像 ίο 15 杈、、且σσ6之紅、綠、藍色投射光藉由該顯像模組6分別調制 成#早色影像，並藉由該鏡頭模組7依序投射成像至屏幕 ° ^依電視系統委員會（NTSC)所制定的規範操作，即每 一早色影像僅顯示5·6毫秒，則依據視覺暫留的原理，人r 視覺系統會自行將依序的單色影像疊加在一起成一彩色景; 像。 / 而另-實施例之構成與前述類似，惟不同處在於，該 句光單元52使用相互配合之—抛物面鏡524及一透鏡陣列 525 ’以使投射光產生勻光效果。 為使形成之影像不致於失真，習用的投影系統之聚光 鏡組523皆需由複數雙凹、雙凸、平凹，或平凸透鏡所組 成’方能有效地消除各式各樣的色像差及成像像差，如球 面像差、慧差、像散’及場曲。其中的成像像差雖然可藉 由精確地研磨透鏡鏡面來排除，但是達成該目的之技術： 本過高，且目前僅應用於天文研究計畫中。此外，採用多 層鍍膜的處理方式雖然亦可同時處理成像像差及色像差， 20 ^58018 疋該技術並未普及，主三 ，而日# μ 受于奴目則仍拿握於德國及曰本 且成像的細緻度及色私釣 果。因卜μ , 色矽飽和度也未必可達預期中的效 準，嗜¥氺於4 c。 相關產卩口可達致一定的水 ，^ 、兄、、'且523便無可避免地具有相當的體積及重量 限制目前投影系統朝向小型化發展的可能性。 甚至，當整體系統、 士1258018 IX. Description of the Invention: [Technical Field] The present invention relates to a projection system, and more particularly to a projection system in which a light source module is processed using a microstructure. [Prior Art], Department, 'first is an electronic display that is widely used in modern life. , the company's merchandise publication or display, school education, cooperation, and hard work, 丨 日 日 、, product marketing and industrial marketing are the main display devices using the projection system as 10 15 . In recent years, due to the maturity and development of liquid crystal k and micron technology, the projection system has not only been mainly developed in large-scale gatherings (4), but the projection system has further extended to the daily life of individuals. For example, the LCD panels that are actively researched and developed by Taiwan's major optoelectronic companies are A Gan, and one of them. In addition, the projection system can be applied to products earlier, personal computers, personal digital assistants, home theaters, digital cameras. , and the role of the game, and the telephone search for various popular areas. It can be seen that the potential of projection systems in modern social activities such as administration, education, is θ A and even personal products is extremely awkward compared to the traditional fe-polar tube 顧 π ”. The current Cantano ~ system design is still not perfect, so that the above-mentioned mirage cannot be achieved or the county Μ田丄 has a limited number of texts, thus limiting the scope of the current projection system can be applied. See Figure 1 and Figure 2. , the sub-μ, the knife is an embodiment of the operation of the Color Sequential Method, and the two embodiments of the method, the embodiment of which includes a light source group 5, a ς ^ Θ ” , a seesaw group 6, and a lens module 7. The light source phase: group 5 is a light body or optical engine commonly known as the industry, 20 1258018 and includes a hairpin, a light homogenizing unit 52, and a color separation unit 53. Wherein, the well includes a projection light that causes the illumination unit to emit: (4) an integration tube 521, and a collection of the illumination unit 51 in the integral. An ellipsoidal mirror 522 near one end of the light-emitting unit 5, and a concentrating mirror group 523 that collects the projected light processed by the integrated shirt 521 to the developing module 6 having a specific size. The color separation unit 53 is a color swatch, which is a commonly known color wheel, and functions to switch the light unit to “light & speed to three primary colors of red, green and blue. The image is sequentially passed through the display ίο 15 杈, and The red, green, and blue projection light of σσ6 is separately modulated into an early color image by the imaging module 6, and is sequentially projected and imaged to the screen by the lens module 7. According to the Television System Committee (NTSC) The specified standard operation, that is, each early color image is only displayed for 5.6 milliseconds, according to the principle of visual persistence, the human r vision system will superimpose the sequential monochrome images into a color scene; The configuration of the other embodiment is similar to the foregoing, except that the sentence light unit 52 uses a parabolic mirror 524 and a lens array 525' which cooperate with each other to cause a uniform light effect on the projected light. Distortion, the condenser lens set 523 of the conventional projection system needs to be composed of a plurality of double concave, double convex, flat concave, or plano-convex lenses to effectively eliminate various chromatic aberrations and imaging aberrations, such as spherical images. Poor, coma, astigmatism and field music Although the imaging aberration can be eliminated by precisely grinding the lens surface, the technique for achieving this purpose: This is too high and is currently only used in astronomical research projects. In addition, the treatment method using multi-layer coating is also Can handle imaging aberrations and chromatic aberrations at the same time, 20 ^58018 疋 This technology is not popular, the main three, and the day # μ by the slaves are still in Germany and 曰 且 and the imaging of the fineness and color of the fruit Inbu, color saturation is not necessarily up to the expected effect, the 嗜 氺 4 in 4 c. Related 卩 mouth can reach a certain amount of water, ^, brother,, and 523 is inevitable With considerable volume and weight limitations, the current projection system is facing the possibility of miniaturization. Even when the overall system,
Jg ^ , /、、、 i化恰，通常無法如傳統上的處 理方式，將該發光單元51 j目炎 ^ ^ ^ 視為一點光源，並使架構於傳統 成何光學原理之投射系钵鲍— 單元s… 貫現。在此情況下，該勾光 ίο 15 早兀Μ的勻光效果亦會大打折扣。 j此：如何將投影系統小型化，以節省成本與增加機 一 * 口 =才使小型化投影系統保有傳統上大型投影系統之 貝-貝’即為擴展投影系統之發展的關鍵目標。 【發明内容】 〜、因此’本發明之一目的，即在提供—種構造簡單，以 即名成本及方便縮小體積的投影系統。 本發明之另-目的，即在提供一種影像不致失真的小 型化投影系統。 、本I月之再一目的，即在提供一種利用微結構進行光 源之勻光處理的勻光單元。 於是，本發明應用句光單元之投影系統包含一光源模 組、一顯像模組，及一鏡頭模組。 該光源模組包括一產生投射光的發光單元及一勻光單 兀。邊勻光單元包括一藉由產生複數次内反射，使該投射 光在傳播橫截面上的強度分佈均勻的光導元件，及一設於 20 5 10 15 20 1258018 該光導元件，並利用微結構偏折行進於 光透射出該勾光單元的光折元件。…先u件之投射 該顯像模㈣於㈣該視頻信㈣❹ 之投射光調變成一影像，該-早兀處 並投射成像於該屏幕。 核且則用於接收該影像 ”中’利μ職結構進 光面積由今料社姐Μ — J尤早7L可產生的出 男由口亥Μ結構的貧際面積決 ，仍引早古— 賴决疋，故在排除聚光鏡組後 簡單，层於制> Λ勻光早兀的的構造 可應用於現有的投影李统充5兄明的，該勾光單元 構件…… 〜系“構，因此亦可排除系統中其它 稱件而獨立製造販賣。 【實施方式】 、有關本毛明之别述及其他技術内容、特點與功效，在 :下配合麥考圖式之四個較佳實施例的詳細說 清楚的呈現。 在本餐明被詳細描述之前，要注意的是，在以下的說 明内容中，類似的元件是以相同的編號來表示。 /閱圖3’本發明應用勻光單元之投影系統用於將一視 頻^唬投射成像於一屏幕上，該投影系統之第一較佳實施 J ^ ^光源板組1、一顯像模組3，及一鏡頭模組4。 —_ 4光源模、、且1包括一產生複色投射光的發光單元11、 二勾光單兀2 ’及一用以將該發光單元11之複色投射光分 成二單色投射光’並分別將每一單色投射光導入一勻光單 兀2的分色單A 12。該發光單元11為-般用於投影系統的 8 1258018 燈具，如齒素燈泡、高塵汞氣燈泡，或氣氣燈泡。作誠如 熟悉該項技藝人士所能聯想，隨著科技之發展日新月里， 適用之燈具種類將會愈來愈多，故不應以上述所提及的严 具種類為限。該分色單元12在本較佳實施中包括—第一八 光鏡⑵、-反光鏡m’及—第二分光鏡123。該第一二 10 15 光鏡⑵將來自該發光單元u之複色投射光中的紅色投射 光111折射偏離原光路，並導向該等勻光單元2其中之一 該反射鏡122將餘光導向該第二分光鏡123，並藉該:：分 光鏡123分離該複色投射光中的綠色投射光與 ^ 光113，且分別導向該等勻光單元2其中另二。 又 參閱圖4’每一勾光單元2包括-概呈長板狀的光導元 件21、：：設於該光導元件Μ的光折元件22，及-反射鏡 、-且23母一光導兀件21用於使經該分色單元1 射光勻化’並具有-入射面出射面⑴，及一周: 一13 /、勻化匕射光的原理為使經該入射面叫人射該光導 凡件21之投射光在該周面213產生複數次内反射。如此可 使該入射之投射光僅沿著該光導元件21之長向傳播而不散 t且隨著内反射次數愈多，該入射之投射光呈現更雜序 :度射現像，亦即經該出射自212射出之投射光在傳播橫 ^面^的亮度及色度將會非常的均勾，利用該投射光為光 二的技影设備所投射出之影像即不會有明暗不均或色彩失 咬而庄思的疋，該光導元件21之外形僅為本 父佳實施例而已，並可隨應用之需求而改變該光導元件21 的外形。例如’以圓柱體的形態實施，亦不影響前述實質 20 ίο 15 20 1258018 上的功效。 一此外在本較佳實施中，產生内反射的實際作法為調整 。亥寺，導兀件21之折射係數’使其高於週邊環境之折射係 數，藉以使以一大於臨界角度射向該周面213之投射光產 生全内反射㈤叫咖对㈣⑽職）。例如，以折射係數 約為1.4晴克力為該光導元件21的材質，以折射係數約 =1·00的空氣做為該光導元件21的週邊環境，則經由折射 定理可知’只要入射角大於臨界角度：42.5度，即可達成 全内反射。 ;、、、:而減如热悉该項技術人士所能做之簡單聯想，亦 可在該周面213上鑛—層折射係數較該等光導元件21為低 的包覆層（圖士示）以產生全内反射。此外，當該包覆層 (圖未示）為冋反射金屬膜或高反射多層介質膜時，亦可 達成使投射光在該周面213產生内反射之目的。 该光折兀件22包括—使投射光透射出該光導元件Μ 的微結構22卜及一將透射出之投射光導向該出射面212的 導光鏡222。該微結構221在本較佳實施例中為_形成於該 光導元件21纟面的微型角錐陣列，當傳播於該光導元件2; 之投射光射向該微結構221時’由於該微結構22ι表面相 對於該周® 213呈凹凸不平的錫齒狀，使該入射之投射光 的入射角無法滿足全内反射的條件’因而透射出該光導元 件。此外’由於在該微結構221所存在的範圍内全内反 射皆無法被滿足，故透射出該光導元件21之投射光的面積 ’即為該微結構221的實際面積。 10 5 10 15 20 1258018 調整該微結構22!之幾何外形 ％ 結構221之投射# & 、貝上改支射向該微 之心射先的入射角， 件之投射光的整體 〜射出以導兀 角度或提高正面亮4=1°：心增加投射時的可視 亦可為一微型圓錐陣列、微 “籌Μ1 甘一 ^ i往^陣列’或微型球體陣列 。，、貫際應用時的幾何結構，孰季 施田兩+、, 〜、，Q 5亥項技術人士可依據 應用而求而自打設計，故此不再贅述。 配合參閱圖5，除了茲山#|凡 M+丄 了猎由该裰結構221之幾何外形調整 投射光的整體發散角度以外，^正 在忒先導兀件21二相對 的面部同時形成微結構 # 221以進一步調整投射光的整體發 月文角度α。在本輕伟命：# + ^ v, 910 ^土貝知中，該微結構⑵形成於該出射面 212及與該出射面212 i日#4 二加 12相對的面部，上下二部份並相互配八 以調整投射光的整體發散角度仏所需範圍。 〇 ;〆反鏡叙、、且23设於該光導元件21週邊，用以將未經 ^亥出射面212透射出該光導元件21之投射光反射回該光 導兀件。該反鏡鏡組23之鏡面的最佳實施態漢可為平面 、抛物面’或球面’視實際應用時該光導元件21的形狀而 定。 芩閱圖3，該顯像模組3包括三分別將經該等勻光單元 处之、、工、、、彔、監色投射光111、11 2、11 3調變成三單色 "像的頒示光閥單A 3 i、一將該視頻信號區分為三單色影 像七號並刀別藉以操控該等顯示光閥單元3 1的擷取控制 早兀（圖未示），及一用於將該等單色影像合併成一彩色影 像的a光單元3 2。各該顯示光閥單元3〗為一穿透式的高溫 11 1258018 多晶石夕液晶顯示面板（P〇iy_Sl LCD)，並可依外部輸入顯示 -灰階影像。#某—單色投射光穿透過其光路上的顯示光 閥單元31 s寺，即可因該灰階影像之每—圖素的不同透光量 而調變成-單色影像。由於經該等句光單（2處理之红、 綠、^色投射光ln、112、113在抵達該等顯示光間單元 31丽’皆已在傳播橫截面上的強度分佈均勾，故經過該等 顯示光閥單元31處理後即可忠實反應該單色影像訊號。最 ίο 15 20 :，藉由該合光單元32即可使外部輸入的彩色影像訊號完 整呈現，並透過該鏡頭模組4投射成像於該屏幕。 此外需補充說明的是，在本較佳實施之光路設計中， 該等顯示光閥單元31亦可為反射式的數位微鏡裝置⑼挪 MlCr〇mim>r Device)或柵狀式光閥（Gratlng Llght Valve)， 二者均為業界所習用的技術，故此不再贅述。 一參閱圖6,本發明應用勻光單元之投影系統之第二較佳 實施例與該第-較實施例類似，惟不同處在於該句光單元2 介於該發料元11及該分色單元12之間，即是使投射光先 經勻光處理再進行分色處理，其功效與該第—較佳實施例 所揭露的功效相當’因此二種作法亦可交互替換實施。此 外’母-顯不光閥單元31在本第二較佳實例中採用目前較 新的顯示技術，其包括一反射式的單晶石夕液晶顯示面板（ Wnd咖⑻0n Slncon)川及一偏極化分光鏡312。該 早晶矽液晶顯示面* 311是屬於反射式的投射技術，並以 CMOS晶片為電路基板。也因此在本較佳實施中，該操取控 制單元（圖未示）亦可直接整合至該單晶石夕液晶顯示面板 12 1258018 3 11之電路基板。 該等偏極化分光鏡312的㈣在於使以某_偏極化方 :入射之投射光偏折’而以另一偏極化方向入射之投射光 穿透。也就是，若使被-偏極化分光| 312偏折之投射光 反射回該偏極化分光鏡312，則該投射光會再次被偏折而無 法通過。該等單晶秒液晶顯示面板311的作用即在於調變反 射之投射光的偏極化方向，使反射之投射光可隨偏極化方 向的調變量而改變穿透該等偏極化分光鏡312的透光量， 以達到调制成一影像的目的。 〜參閱圖7 ’本發明應用句光單元之投影系統之第三較佳 貝知例是以色序法操作，其包含_光源模組i、―顯像模組 3 ’及一鏡頭模組4。 4麥閱圖8，該光源模組丨與該第二較實施例之光源模組 1類似2惟不同處在於，該發光單元u包括三分別產生紅 、綠、藍色投射光m、112、113的發光元件114。在本較 _例中該等發光元件ιΐ4均為發光二極體，藉此，切換 杈射光顏色的方式即可使該等發光元件】14依序發光，而不 需使用色輪。 ^閱圖7，該顯像模組3亦與該第二較實施例之顯像模 、一頒似，惟不同處在於，該顯像模組3僅包括一調制投 1光的顯不光閥單& 3 1，及-掏取該視頻訊號，並藉此操 n頁不光閥單元31的擷取控制單元（圖未示）。其中， 米、、、丁光闊單元3 1與該第一較佳實施例之顯示光閥單元3 1 員忉可為牙透式的高溫多晶矽液晶顯示面板，亦可為折 13 5 10 15 20 1258018 射式的數位微鏡裝置或柵狀式光閥。 —參閱圖9,本發明應用勾光單元之投影系統之第四較佳 貫施例與該第三較佳實 土 閥單亓3…似’不同處僅在於該顯示光 曰 i 較佳實施中所述之反射式的單晶石夕液 日日顯示面板31〗及一偏極化分光鏡3]2。 综上所述，本發明之勾光單元及應用該單 統是利用設於該光導元# ?1向从 〜糸 . 尤V兀件21内的微結構221取代習用投 系統之聚光鏡組523，使小创# & / y 、每 1 ·匕技衫系統之光源處理部份得 :::現。不但可以大幅減小整體體積及重量、促 的投影系統即早芮。仆击π、 _ σ ，更可進一步拓展投影系統的應用 =〜。且利用該勻光單元2可直接應用於目前的任何一種 投影系統之架構’故確可達到發明之功效與目的。 处、惟以上所述者，僅為本發明之較佳實施例而已，當不 =此限疋本發明實施之範圍’即大凡依本發明申請專利 =發明說明内容所作之簡單的等效變化與修錦，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1疋白知投影系統之第一實施例的投射示意圖； 圖2是習知投影系統之第二實施例的投射示意圖； 心是本發”光單Μ應用該單元之投影系統的第 車乂佳貫施例的投射示意圖； —圖4疋—光源模組的侧視剖切圖，說明—自光單元之 一實施態漾的工作原理； 圖5是該勻光單元的側視剖切圖，說明該勻光單元之 14 !258〇18 另一實施態漾； …圖6是本發明勾光單元及應用該單元之投影系統的第 —較佳實施例的投射示意圖； 5 =是本發明勾光單元及應用該單元之投影系統的第 乂 4貫施例的投射示意圖； 回疋^亥第一較佳貫施例之光源模組的立體圖；Λ i圖9是本發明勾光單元及應用該單元之投影系钱 四車父佳實施例的投射示意圖 〜的第 15 1258018 【主要元件符號說明】 1 · ·. 光源模組 212 ·. •出射面 11 · ·. 發光單元 213 ·. ♦周面 111 · _ 紅色投射光 22· · · •光折元件 112 * . 綠色投射光 221 · · •微結構 113。. 藍色投射光 222 · · •導光鏡 114 ·. 發光元件 23· * · •反射鏡組 12· ·. 分色單元 3 * · · •顯像模組 121 ·. 第一分光鏡 31. · · •顯示光閥單元 122 ·. 反光鏡 311 · · •單晶矽液晶顯示面板 123 · · 第二分光鏡 312 · · •偏極化分光鏡 2 · · ，句光單元 32· · · •合光單元 21 · · > 光導元件 4 · · · •鏡頭模組 211 · · * 入射面 α * · * •發散角度 16Jg ^ , /, , , i is justified, usually can not be treated as a traditional way of processing, the light-emitting unit 51 j ^ ^ ^ ^ ^ as a point of light source, and the projection system of the traditional optical principle — Unit s... is continuous. In this case, the lightening effect of the hook light ίο 15 will be greatly reduced. j: How to miniaturize the projection system to save cost and increase the machine? The mini-projection system retains the traditional large-scale projection system, which is the key goal of the development of the extended projection system. SUMMARY OF THE INVENTION It is an object of the present invention to provide a projection system that is simple in construction, simple in cost, and convenient in reducing volume. Another object of the present invention is to provide a miniaturized projection system in which the image is not distorted. A further object of this month is to provide a dodging unit that performs a homogenizing process of a light source using a microstructure. Therefore, the projection system using the sentence light unit of the present invention comprises a light source module, a developing module, and a lens module. The light source module includes a light emitting unit that generates projected light and a light homogenizing unit. The edge homogenizing unit comprises a light guiding element having a uniform intensity distribution of the projected light on the propagation cross section by generating a plurality of internal reflections, and a light guiding element disposed at 20 5 10 15 20 1258018, and utilizing the microstructure bias The folding travels through the light-folding element of the light-emitting unit. ... Projection of the first u piece The developing mode (4) is converted into an image by the projection light of the video signal (4), which is projected onto the screen. The core is used to receive the image. The area of the light-emitting structure of the project is made by the sister of the company, and the JL is 7L, which can be produced by the poor area of the man’s structure. Lai decided, so after the exclusion of the condenser group, the layer is in the system> It can also be manufactured separately by excluding other parts in the system. [Embodiment] The descriptions of the present invention and other technical contents, features and effects are clearly described in detail in conjunction with the four preferred embodiments of the McCaw chart. Before the present specification is described in detail, it is to be noted that in the following description, similar elements are denoted by the same reference numerals. / Figure 3' The projection system of the present invention is used to project a video image onto a screen. The first preferred embodiment of the projection system is a light source panel group and a visualization module. 3, and a lens module 4. - 4 light source mode, and 1 comprises a light-emitting unit 11 for generating complex-color projection light, two hook light units 2' and a color-casting light for splitting the light-emitting unit 11 into two monochromatic projection lights' Each of the monochromatic projection lights is separately introduced into the color separation sheet A 12 of the uniform light unit 2. The lighting unit 11 is a general-purpose 8 1258018 luminaire for a projection system, such as a lenticular bulb, a high dust mercury gas bulb, or a gas bulb. As you are familiar with the art, you can think of it. With the development of technology, there will be more and more types of lamps to be used in the new moon. Therefore, it should not be limited to the types mentioned above. The color separation unit 12 includes, in the preferred embodiment, a first octave mirror (2), a mirror mirror m', and a second beam splitter 123. The first two 10 15 light mirrors (2) refract the red projection light 111 from the complex color projection light from the light emitting unit u away from the original light path, and guide the one of the light homogenizing units 2 to guide the residual light to the remaining light. The second beam splitter 123 is separated from the green projection light and the light 113 in the complex color projection light by the dichroic mirror 123, and is respectively guided to the other two of the homogenizing units 2. Referring to FIG. 4' each of the light-hooking units 2 includes a substantially long-plate-shaped light guiding member 21,: a light-folding member 22 disposed on the light-guiding member ,, and a mirror, and a mother-and-light guide member 21 is used to homogenize the light emitted by the color separation unit 1 and has an entrance surface (1), and a circumference: a 13 /, the principle of homogenizing the light to cause the light guide to be incident on the incident surface 21 The projected light generates a plurality of internal reflections on the circumferential surface 213. In this way, the incident projection light can be propagated only along the long direction of the light guiding element 21 without being scattered, and as the number of internal reflections increases, the incident projection light exhibits more disorder: the image is emitted, that is, The brightness and chromaticity of the projected light emitted from 212 will be very uniform, and the image projected by the technical device using the projected light will not have unevenness or color. The shape of the light guiding element 21 is only the embodiment of the parent, and the shape of the light guiding element 21 can be changed according to the needs of the application. For example, the implementation in the form of a cylinder does not affect the efficacy of the aforementioned essence 20 ίο 15 20 1258018. In addition, in the preferred embodiment, the actual practice of generating internal reflection is adjustment. In Hai Temple, the refractive index of the guide member 21 is made higher than the refractive index of the surrounding environment, so that the total light reflection is generated by the projection light directed to the circumferential surface 213 by a threshold angle (5), which is called (4) (10). For example, a refractive index of about 1.4 gram is the material of the light guiding element 21, and an air having a refractive index of about 1.00 is used as the surrounding environment of the light guiding element 21, and the refractive index theorem is known as long as the incident angle is greater than the critical value. Angle: 42.5 degrees, you can achieve total internal reflection. ;,,,:,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ) to produce total internal reflection. Further, when the coating layer (not shown) is a ruthenium reflective metal film or a highly reflective multilayer dielectric film, it is also possible to achieve internal reflection of the projection light on the circumferential surface 213. The light-creating member 22 includes a microstructure 22 for transmitting projection light out of the light-guiding member 卜 and a light guide 222 for directing the transmitted projection light toward the exit surface 212. The microstructure 221 is in the preferred embodiment a micro pyramid array formed on the surface of the light guiding element 21 when propagating to the light guiding element 2; when the projected light is directed toward the microstructure 221, due to the microstructure 22 The surface is unevenly tinned with respect to the circumference 213 such that the incident angle of the incident projection light does not satisfy the condition of total internal reflection' and thus transmits the light guiding element. Further, since the total internal reflection cannot be satisfied in the range in which the microstructure 221 exists, the area of the projection light transmitted through the light guiding element 21 is the actual area of the microstructure 221 . 10 5 10 15 20 1258018 Adjusting the geometry of the microstructure 22! The projection of the structure 221 # &, the change of the incident angle of the beam to the first shot of the heart, the whole of the projected light of the piece ~ shot to guide兀 Angle or increase the front brightness 4=1°: The visual increase of the projection can also be a micro-cone array, a micro-"1", an array of micro-spheres, or a geometry of a continuous application. The structure, the two seasons of the field + +,, ~,, Q 5 Hai technical people can design according to the application and therefore not to repeat. See Figure 5, in addition to Zhashan #|凡M+丄猎猎In addition to the geometrical shape of the 裰 structure 221, the overall divergence angle of the projected light is adjusted, and the opposite surface of the yoke 21 is simultaneously formed with the microstructure #221 to further adjust the overall eccentric angle α of the projected light. :# + ^ v, 910 ^Tubei Zhizhong, the microstructure (2) is formed on the exit surface 212 and the face opposite to the exit surface 212 i #4 2 plus 12, the upper and lower parts are matched with each other to adjust The overall divergence angle of the projected light is within the required range. And 23 are disposed around the light guiding member 21 for reflecting the projection light transmitted from the light guiding member 21 to the light guiding member 21. The mirror surface of the mirror group 23 is optimally implemented. The state can be a plane, a paraboloid 'or a sphere' depending on the shape of the light guiding element 21 in practical use. Referring to Figure 3, the developing module 3 includes three, respectively, through the uniformizing unit. , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The control of the display light valve unit 31 is controlled by an operation (not shown), and a light unit 3 2 for combining the monochrome images into a color image. Each of the display light valve units 3 〗 is a transmissive high temperature 11 1258018 polycrystalline stone LCD panel (P〇iy_Sl LCD), and can be displayed according to external input - grayscale image. #某—Monochrome projection light penetrates the display light on its optical path The valve unit 31 s temple can be converted into a monochromatic shadow due to the different light transmission amount of each pixel of the gray scale image. For example, the intensity distribution of the cross section on the propagation cross section is the same as the red, green, and ^ color projection lights ln, 112, and 113 that arrive at the display light unit 31. Therefore, after the processing of the display light valve unit 31, the monochrome image signal can be faithfully reflected. The most lightly 15 20 : by the light combining unit 32, the externally input color image signal can be completely presented and transmitted through the lens. The module 4 is projected onto the screen. In addition, in the optical path design of the preferred embodiment, the display light valve unit 31 can also be a reflective digital micromirror device (9). MlCr〇mim>r Device) or Gratlng Llght Valve, both of which are used in the industry, are not described here. Referring to FIG. 6, a second preferred embodiment of the projection system of the present invention using a homogenizing unit is similar to the first embodiment, except that the sentence light unit 2 is interposed between the emitting element 11 and the color separation. Between the units 12, the projection light is first subjected to a homogenization process and then subjected to a color separation process, and the effect is equivalent to that disclosed in the first preferred embodiment. Therefore, the two methods can also be alternately implemented. In addition, the 'mother-display valve unit 31 adopts the presently new display technology in the second preferred embodiment, which includes a reflective single crystal lithography liquid crystal display panel (Wnd coffee (8) 0n Slncon) and a polarization The beam splitter 312. The early crystal 矽 liquid crystal display surface * 311 is a reflective projection technique, and a CMOS wafer is used as a circuit substrate. Therefore, in the preferred embodiment, the operation control unit (not shown) can be directly integrated into the circuit substrate of the single crystal solar display panel 12 1258018 3 11 . The fourth (4) of the polarization beam splitting mirrors 312 is such that the projection light incident in the other polarization direction is penetrated by the deflection of the incident light. That is, if the projection light deflected by the -polar polarization splitting|312 is reflected back to the polarization beam splitter 312, the projection light is again deflected and cannot pass. The function of the single crystal second liquid crystal display panel 311 is to modulate the polarization direction of the reflected reflected light, so that the reflected projection light can change and penetrate the polarization polarization beam splitter according to the polarization of the polarization direction. The amount of light transmitted by 312 is used to achieve the purpose of modulating into an image. ~ Refer to FIG. 7 'The third preferred example of the projection system of the application sentence light unit of the present invention is a color sequential operation, which includes a light source module i, a "development module 3" and a lens module 4 . 4, the light source module 丨 is similar to the light source module 1 of the second embodiment, except that the light-emitting unit u includes three red, green, and blue projection lights m, 112, respectively. Light-emitting element 114 of 113. In the present invention, the light-emitting elements ι4 are all light-emitting diodes, whereby the light-emitting elements can be sequentially illuminated by switching the color of the light-emitting elements without using a color wheel. Referring to FIG. 7, the imaging module 3 is also similar to the imaging module of the second embodiment. The difference is that the imaging module 3 includes only a display valve that modulates the light. The single & 3 1, and - capture the video signal, and thereby operate the capture control unit (not shown) of the n-page non-light valve unit 31. Wherein, the meter, the Ding Guangkuo unit 31 and the display light valve unit of the first preferred embodiment can be a high-frequency polycrystalline liquid crystal display panel of a tooth-permeable type, or can be folded 13 5 10 15 20 1258018 Digital micromirror device or grid light valve. - Referring to Figure 9, the fourth preferred embodiment of the projection system of the present invention using the light-hooking unit is different from the third preferred physical valve unit 3...only in the preferred embodiment of the display aperture The reflective single crystal daylight solar display panel 31 and a polarizing beam splitter 3]2. In summary, the hook light unit of the present invention and the application unit of the present invention replace the concentrating mirror group 523 of the conventional investment system with the microstructure 221 disposed in the 兀V 兀V 21 21 from the light guide element #?1, Make Xiaochuang # & / y, every 1 · 匕 匕 之 system light source processing part::: now. Not only can the overall volume and weight be greatly reduced, but the projection system is promoted. The servant π, _ σ can further expand the application of the projection system = ~. Moreover, the homogenizing unit 2 can be directly applied to the architecture of any current projection system, so that the efficacy and purpose of the invention can be achieved. The above is only the preferred embodiment of the present invention, and is not limited to the scope of the present invention, that is, the simple equivalent change of the invention according to the invention. The repairs are still within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of projection of a first embodiment of a projection system; FIG. 2 is a schematic diagram of projection of a second embodiment of a conventional projection system; Projection diagram of the first embodiment of the projection system; - Figure 4 - side cutaway view of the light source module, illustrating the working principle of one of the self-illuminating units; Figure 5 is the light-sharing unit FIG. 6 is a schematic view showing the projection of the light-harvesting unit of the present invention and a projection system using the same; FIG. 6 is a side view of the light-receiving unit; FIG. 5 = is a projection view of the fourth embodiment of the light hooking unit of the present invention and the projection system using the same; a perspective view of the light source module of the first preferred embodiment of the present invention; The light-emitting unit of the present invention and the projection system using the same are the projections of the embodiment of the four-car-family embodiment~ 15 1258018 [Explanation of main component symbols] 1 · ·. Light source module 212 ·. • Exit surface 11 · ·. Light unit 213 ·. ♦ circumference 111 · _ red Light 22··· • Photorefractive element 112*. Green projected light 221 · · • Microstructure 113. Blue projected light 222 · · • Light guide 114 ·. Light-emitting element 23· * · · Mirror group 12· · Color separation unit 3 * · · • Development module 121 ·. First beam splitter 31. · · • Display light valve unit 122 ·. Reflector 311 · · • Single crystal 矽 liquid crystal display panel 123 · · Second Beam splitter 312 · · • Polarizing beam splitter 2 · · , sentence light unit 32 · · · • Light combining unit 21 · · > Light guide element 4 · · · • Lens module 211 · · * Incidence surface α * · * • Divergence angle 16