1232995 玖、發明說明： 【發明所屬之技術領域】 本發明是有關於一種可攜式手持電子裝置，特別是指 一種具有微型化投影系統之手持裝置。 疋曰 【先前技術】 現有的彩色投影系統，依其分光方式大致可區分為多 光路濾光片式彩色投影系統與單_光路色輪式彩色投影 系統，如圖1所示，多光路遽光片式的投影系統9所需: 線往往來自一如函素燈等之白色光源91，經由積分器犯 勻化後，藉由多組雙色鏡93與反射鏡94自該單一白色光 源91，分離出紅（Red)綠（Green)藍（Blu幻三單色光 (RGB)，再藉由獨立的三條光學路徑95及分別設置於其上 的二組调變器96調制，最後匯集至一合光稜鏡（又邛…爪沉 X-Cube) 97合光，以將分別經過該等調變器⑽調制後之 光學影像疊合後，最後經由一鏡頭透鏡模組98調整放大 並投射而出，完成彩色光學影像之投影。 由於上述三單色光是分離自同一白色光源91，因此上 述具有多道光學路徑95的彩色投影系統9對於該白色光 源91之亮度要求極高，然而受限於傳統光源，無論是傳 統的白熾燈泡或鹵素燈泡，該投影系統9仍存在光能利用 效率偏低及系統耗電過巨等缺點，因此難以適用於電能儲 存量較低之手持裝置上。 此外’由於上述多光路之彩色投影系統9必須設有多 組雙色鏡93與反射鏡94、三組調變器96，以及至少一合 1232995 光棱鏡97，甚至當該等調變器96採用液晶⑽uid . Crystal Display，LCD)調變技術時，更須增加極化偏光 器（P〇ladzer)99進行光訊號的偏極化；因此使得該投影系 統9存在設計龐雜、元件過多、裂配精度和難度高，以及 體積過大等缺點，難以整合於手持裝置中結合運用。 而單一光路色輪式的彩色投影系統則由於僅具有單 一光學路徑，因此相較上述多光路之彩色投影系統9在影 像對焦與清晰度上具有先天之優勢。如圖2所示，一般色 輪式彩色投影系統8的光源81同樣來自一如鹵素燈等之 白色光源’其先將該光源81發出的光線以一聚焦透鏡模 組（Condensing Lens)82 聚焦於穿透性色輪（Transmissive1232995 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a portable handheld electronic device, and particularly to a handheld device having a miniaturized projection system. [Previous technology] The existing color projection systems can be roughly divided into multi-light path filter-type color projection systems and single-light-path color wheel-type color projection systems according to their beam splitting methods. As shown in Figure 1, Necessary for the sheet-type projection system 9: The line is often from a white light source 91 such as a letter lamp. After homogenization by an integrator, the multiple white light sources 91 and reflectors 94 are used to separate the light from the single white light source 91. Red (Red) Green (Blue) (Blu magic three monochromatic light (RGB), and then modulated by three independent optical paths 95 and two sets of modulators 96 respectively set there, and finally combined into one Light 稜鏡 (also 爪 ... claw X-Cube) 97 combined light, after superimposing the optical images modulated by these modulators ，, finally adjusted and projected through a lens lens module 98 to magnify and project The color optical image is projected. Since the three monochromatic lights are separated from the same white light source 91, the above-mentioned color projection system 9 with multiple optical paths 95 requires extremely high brightness for the white light source 91, but is limited by Traditional light source Incandescent light bulb or halogen light bulb, the projection system 9 still has the disadvantages of low light energy utilization efficiency and excessive power consumption of the system, so it is difficult to apply to handheld devices with low energy storage capacity. In addition, 'because of the above-mentioned multi-light path color Projection system 9 must be provided with multiple sets of dichroic mirrors 93 and reflectors 94, three sets of modulators 96, and at least one 1232995 light prism 97, even when the modulators 96 use liquid crystal (Uuid. Crystal Display, LCD) adjustment. When changing technology, it is necessary to add a polarizing polarizer (Poladizer) 99 to polarize the optical signal; therefore, the projection system 9 has the disadvantages of complex design, too many components, high accuracy and difficulty of splitting, and large volume. , It is difficult to integrate and use in handheld devices. Since the color projection system with a single optical path color wheel type has only a single optical path, it has inherent advantages in image focusing and sharpness compared to the above-mentioned multi-light path color projection system 9. As shown in FIG. 2, the light source 81 of the general color wheel type color projection system 8 also comes from a white light source such as a halogen lamp. It first focuses the light emitted by the light source 81 with a focusing lens module (Condensing Lens) 82. 1. transmissive color wheel
Color Wheel)83’再利用-積分器84及一成像鏡片模組 (Shaping Lens)85將通過上述色輪83的光線均勻投射在一 調變器86上’最後藉由一鏡頭透鏡模組87投影出經該調 變器86調制後之光學影像。 然而，由於該色輪式彩色投影系統8採用與上述濾光 片式％色投影系統9(見圖1)相同之白色光源81，且其所發 射之光線大部#會被該色輪83㈤當，因此同樣存在上述 光能利用效率偏低及系統耗電過巨等缺點，而難以適用於 手持裝置上。 ' 雖然相較於上述多光路濾光片式彩色投影系統9(見 圖1) ’该單-光路色輪式彩色投影系統8具有較為緊緻之 光路设汁，使得其系統體積能相較於上述多光路濾光片式 节色投影系統9縮減許多，然而，由於該高速旋轉之色輪 1232995 須再外加如高速馬達等機械裝置87進行驅動，因此 °°光路色輪式彩色投影系統8之體積仍受限於該色輪 83及其驅動裝置87而難以縮減至要求輕薄短小之手持裝 置上。 此外上述用於驅動該色輪83之機械裝置87在耗電量 迎仍疋相田A ’同時容馬達高速運轉影響週遭電磁 不兄口此在與如行動電話（Cell Phone)或個人數位助理 (PDA)等具有精密電路及設傷之手持裝置的整合上，亦存 在有相當之技術困難度。 【發明内容】 本發明之主要目的是在提供一種具有微型化彩色投 影系統之手持裝置。 本發明之另一目的是在提供一種簡化系統複雜度並 結合於手持裝置上之彩色投影系統。 本發明具微型投影系統之手持裝置，具有一殼體、一 位於忒设體内之電路，以及一位於該殼體内之微型投影系 統。 其特徵在於該微型投影系統包含一與該電路電性連 接之半導體光源模組、一設置於該殼體上之鏡頭模組、一 由該半導體光源模組至該鏡頭模組之光學路徑、一設置於 該光學路徑上之光調制模組；該半導體光源模組能產生複 數帶寬相異之單色光，該電路具有一與該光調制模組電性 連接之控制單元，該控制單元能同步控制該半導體光源模 組及该光調制模組調制各該單色光，以投射出彩色影像。 1232995 本發明之功效在於捨棄傳統彩色投影系統中如濾光 片或色輪等的分光模組，大幅縮減整個系統之元件數目及 體積尺寸，使得系統簡化、省電，並具較高之光能利用效 率，達到將彩色投影系統微型化並整合於手持裝置中之效 果。 【實施方式】 10 15 20 、有關本發明之前述及其他技術内容、特點與功效，在 、下配5參考圖式之—較佳實施例的詳細說明中，將可清 楚的明白。在提出詳細說明之前，要注意的是，在以下的 敘述中，類似的元件是以相同的編號來表示。 #如圖3及圖4所示，本發明具微型投影系統】之手持 置1 〇的第一較佳貫施例為一行動電話，該手持裝置1 〇 具有-殼體2、-位於該殼體2内之微型投影系統卜一 ^於該殼體2内之電路3、—顯露於該殼體2外側之輸入 :面4, 一可分離設置於該殼體2内之電子儲存媒體5、 :可分離安裝於該殼體2内之電池6,以及―與該電路3 電性連接之音響系統7。 士立该音響系統7是用於收音與發音用，在本實施例中， f音響系統7具有一麥克風71及…刺口八72。該電池6與 亥電路3電性連接以提供該手持裝置ι〇中其他組件所須 盘電力4電子儲存媒體5則是用於儲存資訊，且同樣地 〆電路3電性連接。在本實施例中，該電池6為一能盥 裝置1〇配合可重複充電之電池，而該電子儲存媒 ^ —快閃記憶卡（Flash Card) ’但非以此為限；同時， 7 1232995 «池6與該電子儲存媒體5均是可分離地安裝於該手持 衣置10内’以供使用者依其需求方便取出或插入，以及 較彈性地選以同純及功能之電池6與電子儲存媒體 5」然此設計亦僅為較佳之實施，並非本發明之限定條件， 沾白-亥項技術者當能輕易明瞭，該電池6及該電子儲存媒 體5也可以固設於該手持震置1〇内，且上述手持震置1〇 之電力也可以由一連接交流電源之變壓器（圖未式），或婉 由如通用序列埠匯流排（USB)等各式電連接器，以—如= 腦等之其他電子裝置提供。 ίο 15 。亥輸入，,面4與该電路3電性連接，以供使用者對該 電路3及該微型投影系統1進行操控。在本實施例中，該 輸入介面4為複數按鍵，但並非以此為限，該輸入介面4 也可以是滾輪、搖桿，甚至觸控面板等現有適用於手持裝 置ίο上之各式設計。由於此非本發明之主要技術特徵，、 故在此不多加資述。 該電路3具有一控制單元31、一基頻單元32、—射 頻單元33 ’以及-與該射頻單元33電性連接之天線模組 34。該射頻單元33能經由該天線模組34發射或接受電磁 波訊號’而該基頻單元32則能將轉換自該射頻單元犯接 收之電磁波訊號的數位資訊傳送給該控制單元Μ進行處 理，或將來自該控制單元31之數㈣訊提供該射頻單元 33轉換為電磁波訊號。 在本實施例中，該基頻單元32更具有一般通訊電子 裝備之基頻電路所具有的功能’即能將該射頻單元犯所 20 1232995 接收之電磁波訊號直接轉化為如音訊等之類比訊號，並且 將-直接傳达至上述音響系統7之剩队72播送；當然， 該基頻單元32也能將來自該麥克風n所獲得之類比訊號 傳达至4射頻單兀33轉換為電磁波訊號發射。該控制單 元3!能接收錢照該輸人介面4之指令或該基頻單元％ 處理後之數位資訊，存取該電子儲存媒體5所載有之資 訊，以及控制該基頻單A 32、該射鮮元犯，以及該微 型投影系統1之運作。 ίο 15 如圖5及圖6所示，該微型投影系統J包含一與該控 制單元31電性連接之半導體光源模組u、—設置於該殼 體^上之鏡頭模組12、—由該半導體光源模組u至該鏡 頭模組12之光學路徑13、一設置於該光學路徑13上之光 調制模組14。 該半導體光源模組u具有一能發射紅色光的發光二 極體（Light Emitting Diode，LED)晶粒⑴、一能發射 綠色光的發光二極體晶纟112，以及一能發射藍色光的發 光二極體晶粒113’因此該半導體光源模、组u能產生紅 色、綠色與藍色等三個帶寬相異之單色光。在本實施例 中，該半導體光源模組11 1具有三分別罩設各該發光二 極體晶粒m、Π2、113之聚光反射器114，以及一設置 於各該發光二極體晶粒m、112、113間之合光稜鏡115。 該合光棱鏡模組115是一稱為又立方體（x_Cube)或 X棱鏡U-prism)之立方體棱鏡，並具有三分別朝向各該 發光二極體晶粒111、112、 113之分光導入面116，以及 20 1232995 一位於該光學路徑13之一端點上的合光導出面117。該合 光導出面117則與該光學路徑13正交，藉以使得由各該 發光二極體晶粒111、112、113所發出並分別人射各該分 光導入面116之帶寬相異的單色光都能循該光學路徑13 5 傳播。 該光調制模組14和上述半導體光源模組u同樣地與 該控制單元31電性連接並同步地受其驅動控制，在本實 施例中，該光調制模組14具有一設置於該光學路徑13上 之數位微型反射鏡元件141(Digital Micr⑽ 10 DMD)。 ’ 因此，當該控制單元31接收來自該輸入介面4或該 基頻早兀33傳來之指令後，擷取該電子儲存媒體5或該 基頻單元33所有之數位資訊，將數位資訊内容所有之彩 色影像資訊區分為紅色基底影像資訊、綠色基底影像資 15 Λ，以結色基底影像資訊，並依此同步控㈣半導體光 源模組11以及該光調制模組14;此即，當該控制單元31 控制該發光二極體晶粒⑴發射出紅色光時，該控制單元 31依上述紅色基底影像資訊同步控制該數 元件調制該紅色光，並透過該鏡頭模組12投影^ 2〇《工色基底影像，·當該控制單元控制該發光二極體晶粒 112發射出綠色光時，，該控制單元31依上述綠色基底影像 資訊同步控制該數位微型反射敍件141調制該綠色光， 並，過該鏡頭模組12投影出該綠色基底影像；而當該控 制單几31控制該發光二極體晶粒113發射出藍色光時， 10 1232995 札制早το 31依上述藍色基底影像資訊同步控制該數位 微型反射鏡元件141調制該藍色光，並透過該鏡頭模組12 投影出該藍色基底影像。 由於該半導體光源模組u是由該等發光二極體晶粒 5 :1卜112、113所組成，因此能直接以該電路3驅動控制 該半導體光源模組U於各該帶寬相異之單色光間以超過 人類視覺暫留週期的高速切換，並藉由該控制單元31同 步驅動該光調制模組14調制各單色光。使得上述紅色基 底影像、綠色基底影像，以及藍色基底影像高速地依序顯 10 現，而投射出在人類視覺上疊合之彩色影像。 如圖7所示，本發明具微型投影系統丨之手持裝置 的第二較佳實施例與上述第一較佳實施例大致相同，該手 持裝置10同樣是一行動電話，其差異在於在本實施例中， 該投影系統1改採反射式石夕基液晶（Liquid Crystai 〇n 15 Silicon，LC0S)技術。 具體地，與上述第一較佳實施例不同處在於該光調制 模組14具有一設置於該光學路徑13上之極化分光器 142，以及一設置於該光學路徑13上並與該控制單元3ι 電性連接之光調變器143。該光調變器143與該控制單元 31電性連接並與該半導體光源模組11同步地受其驅動控 制。在本實施例中，該光調變器143是一反射式矽基液晶 元件（LCOS Device)，而該半導體光源模組u所發出之 光線是沿該光學路徑13傳播，經該極化分光器142後轉 向該光調變器143，再由該光調變器143調制及反射，使 1232995 4分光線穿過該極化分光器142並射向該鏡頭模組12。 在本實施例中，該極化分光器142是一稜鏡型極化分 光器142，其具有一與該光學路徑13夾45度角之極化分 光面144 ,但非以此為限，熟習該項技術者經由以下的敘 述將可明瞭，如圖8所示，該極化分光器142也能是一平 板型極化分光器142,該平板型極化分光器142之表面145 與該光學路徑13夾45度角。 因此欲投影出彩色影像時，當該控制單元31擷取數 位資訊，並將數位資訊内容的彩色影像資訊區分為紅色基 底影像資訊、綠色基底影像資訊，以及藍色基底影像資訊 後，依此同步控制該半導體光源模組u以及該光調變器 143 ;即，當該控制單元31控制該發光二極體晶粒m(見 圖6)發射出紅色光時，該紅色光經由該極化分光器142將 偏極化之光線反射向該光調變器143，該光調變器143受 該控制單元31控制依上述紅色基底影像資訊同步調制該 、、工色光’並將调制後之光線再度射向該極化分光器14 2， 此時該極化分光器142阻擋部分已調制（或未調制）之光線 後’將该紅色基底影像透過該鏡頭模組12投射而出；同 理當該控制單元31控制該發光二極體晶粒112(見圖6)發 射出綠色光時，也能依上述綠色基底影像資訊同步控制該 光調變器143，並將經由該極化分光器142及該光調變器 143調制之該綠色基底影像透過該鏡頭模組12投射而出； 而虽然’該控制單元31也能依上述相同方式同步控制該 舍光一極體晶粒丨13(見圖6)及該光調變器143，並將經由 12 5 10 15 20 1232995 該極化分光器142及該朗變器143調制之該藍色基底影 像透過該鏡頭模組12投射而出。 由於s亥半導體光源模組j】能直接以該電路3驅動控 制該半導體光源模、组u於各該帶寬相異之單色光間以超 過人類視覺暫留週期的高速切換，並藉由該控制單元31 :步驅動該光難器143，配合該極化分絲142調制各 早色光，使上述紅色基底影像、綠色基底影像，以及藍色 基底影像高速地依序顯現，而投射出在人類視覺上疊合之 彩色影像。 1σ 、，，示上所述，在本發明具微型投影系統】之手持裝置10 中，由於該投影系統！運作時，無須調制之單色光並不合 自該半導體光源模組η中產生，因此相當節省電能Color Wheel) 83 'reuse-integrator 84 and an imaging lens module (Shaping Lens) 85 uniformly project the light passing through the color wheel 83 onto a modulator 86' and finally project through a lens lens module 87 An optical image modulated by the modulator 86 is output. However, since the color wheel-type color projection system 8 uses the same white light source 81 as the above-mentioned filter-type% color projection system 9 (see FIG. 1), and most of the emitted light # will be used by the color wheel 83. Therefore, it also has the disadvantages of low light energy utilization efficiency and excessive power consumption of the system, which makes it difficult to apply to handheld devices. 'Although compared with the above-mentioned multi-light-path filter-type color projection system 9 (see FIG. 1)', the single-light-path color wheel-type color projection system 8 has a more compact optical path design, so that its system volume can be compared with The above-mentioned multi-light path filter type color-saving projection system 9 is reduced in size. However, since the high-speed rotating color wheel 1232995 must be driven by a mechanical device 87 such as a high-speed motor, the light path color wheel type color projection system 8 The volume is still limited by the color wheel 83 and its driving device 87, and it is difficult to reduce the size to a handheld device that requires lightness and shortness. In addition, the above-mentioned mechanical device 87 for driving the color wheel 83 meets Aida ’s power consumption while allowing the high-speed operation of the motor to affect the surrounding electromagnetic waves, such as cell phones or personal digital assistants (PDAs). There are also considerable technical difficulties in the integration of handheld devices with precision circuits and wounds. SUMMARY OF THE INVENTION The main object of the present invention is to provide a handheld device with a miniaturized color projection system. Another object of the present invention is to provide a color projection system that simplifies system complexity and is incorporated in a handheld device. The handheld device with a micro-projection system of the present invention has a housing, a circuit located in a housing, and a micro-projection system located in the housing. It is characterized in that the miniature projection system includes a semiconductor light source module electrically connected to the circuit, a lens module disposed on the housing, an optical path from the semiconductor light source module to the lens module, a A light modulating module disposed on the optical path; the semiconductor light source module can generate monochromatic light with different bandwidths; the circuit has a control unit electrically connected to the light modulating module, and the control unit can be synchronized The semiconductor light source module and the light modulation module are controlled to modulate each of the monochromatic lights to project a color image. 1232995 The effect of the present invention is to abandon the spectral modules such as filters or color wheels in the traditional color projection system, greatly reduce the number of components and the size of the entire system, simplify the system, save power, and have high light energy utilization efficiency. To achieve the effect of miniaturizing and integrating the color projection system into a handheld device. [Embodiment] 10 15 20 The foregoing and other technical contents, features, and effects of the present invention will be clearly understood in the detailed description of the preferred embodiment with reference to Figure 5 below. Before giving a detailed description, it should be noted that in the following description, similar elements are denoted by the same reference numerals. #As shown in FIG. 3 and FIG. 4, the first preferred embodiment of the handheld device 10 with a micro-projection system according to the present invention is a mobile phone. The handheld device 10 has-a housing 2-and is located in the housing The micro-projection system in the body 2 includes the circuit 3 inside the casing 2, the input exposed on the outside of the casing 2: surface 4, an electronic storage medium detachably disposed in the casing 2, : Separate battery 6 installed in the casing 2 and ―audio system 7 electrically connected to the circuit 3. The sound system 7 of Shi Li is used for sound collection and pronunciation. In this embodiment, the f sound system 7 has a microphone 71 and ... The battery 6 is electrically connected to the circuit 3 to provide power required by other components in the handheld device ι. The electronic storage medium 5 is used to store information, and the circuit 3 is also electrically connected. In this embodiment, the battery 6 is a rechargeable device 10 with a rechargeable battery, and the electronic storage medium ^ —Flash Card 'is not limited thereto; meanwhile, 7 1232995 «The pool 6 and the electronic storage medium 5 are detachably installed in the hand-held clothes set 10 'for users to easily remove or insert according to their needs, and more flexible selection of homogeneous and functional batteries 6 and electronics "Storage medium 5" However, this design is only a better implementation, and is not a limiting condition of the present invention. Those skilled in the art can easily understand that the battery 6 and the electronic storage medium 5 can also be fixed to the handheld vibration device. It can be set within 10, and the power of the above-mentioned handheld shock can be set by a transformer (not shown in the figure) connected to an AC power supply, or by various electrical connectors such as a universal serial port bus (USB) to— Such as: brain and other electronic devices. ίο 15. The Hai input, the surface 4 is electrically connected to the circuit 3 for the user to control the circuit 3 and the micro-projection system 1. In this embodiment, the input interface 4 is a plurality of keys, but it is not limited to this. The input interface 4 may also be a wheel, a joystick, or even a touch panel. Since this is not the main technical feature of the present invention, it will not be further described here. The circuit 3 has a control unit 31, a fundamental frequency unit 32, an RF unit 33 ', and an antenna module 34 electrically connected to the RF unit 33. The radio frequency unit 33 can transmit or receive electromagnetic wave signals through the antenna module 34, and the base frequency unit 32 can transmit digital information converted to the electromagnetic wave signals received by the radio frequency unit to the control unit M for processing, or The digital signal from the control unit 31 provides the radio frequency unit 33 to convert into an electromagnetic wave signal. In this embodiment, the fundamental frequency unit 32 further has the function of the fundamental frequency circuit of general communication electronic equipment, that is, it can directly convert the electromagnetic wave signals received by the radio frequency unit 20 1232995 into analog signals such as audio, etc. And-will be directly transmitted to the remaining team 72 of the above-mentioned audio system 7; of course, the baseband unit 32 can also transmit the analog signal obtained from the microphone n to the 4 radio frequency unit 33 and convert it into an electromagnetic signal transmission. The control unit 3 can receive the digital information processed by the input interface 4 according to the instructions of the input interface 4 or the base frequency unit, access the information contained in the electronic storage medium 5, and control the base frequency list A 32, The shooter and the operation of the micro-projection system 1. ίο 15 As shown in FIG. 5 and FIG. 6, the micro-projection system J includes a semiconductor light source module u electrically connected to the control unit 31—a lens module 12 disposed on the housing ^ — An optical path 13 from the semiconductor light source module u to the lens module 12 and a light modulation module 14 disposed on the optical path 13. The semiconductor light source module u has a light emitting diode (Light Emitting Diode, LED) chip emitting red light, a light emitting diode crystal 112 emitting green light, and a light emitting diode capable of emitting blue light. The diode crystal grain 113 ′ can thus generate three-color monochromatic light with different bandwidths, such as red, green, and blue. In this embodiment, the semiconductor light source module 11 1 has three condenser reflectors 114 respectively covering each of the light-emitting diode crystal grains m, Π2, and 113, and one light-emitting diode crystal disposed on each of the light-emitting diode crystal grains. The combined light of m, 112, 113 is 115. The combining prism module 115 is a cube prism called x-Cube or X-prism, and has three light guide surfaces 116 respectively facing the light emitting diode grains 111, 112, and 113. And 20 1232995-a combined light exit surface 117 at one end of the optical path 13. The combined light exit surface 117 is orthogonal to the optical path 13 so that the monochromatic light emitted by each of the light emitting diode grains 111, 112, 113 and emitted by each of the light guide surfaces 116 has a different bandwidth. Can all follow this optical path 13 5. The light modulation module 14 is electrically connected to the control unit 31 and driven and controlled synchronously with the semiconductor light source module u as described above. In this embodiment, the light modulation module 14 has an optical path. Digital micro-mirror element 141 (Digital Micr® 10 DMD). 'Therefore, after the control unit 31 receives an instruction from the input interface 4 or the base frequency early 33, it retrieves all the digital information of the electronic storage medium 5 or the base frequency unit 33, The color image information is divided into red-based image information and green-based image information 15 Λ. Based on the color-based image information, the semiconductor light source module 11 and the light modulation module 14 are simultaneously controlled according to this; that is, when the control When the unit 31 controls the light-emitting diode chip ⑴ to emit red light, the control unit 31 synchronously controls the digital element to modulate the red light according to the above-mentioned red base image information, and projects the red light through the lens module 12. Color base image, when the control unit controls the light emitting diode die 112 to emit green light, the control unit 31 synchronously controls the digital micro-reflective description module 141 to modulate the green light according to the green base image information, and The green module image is projected through the lens module 12; and when the control unit 31 controls the light emitting diode crystal 113 to emit blue light, 10 1232995 is made early το 31 Synchronously controls the digital micro-mirror element 141 according to the above-mentioned blue-based image information to modulate the blue light, and project the blue-based image through the lens module 12. Since the semiconductor light source module u is composed of the light emitting diode grains 5: 1, 112, and 113, the semiconductor light source module U can be directly driven and controlled by the circuit 3 in each of the different bandwidths. The color light is switched at a high speed that exceeds the period of human vision dwell, and the light modulation module 14 is synchronously driven by the control unit 31 to modulate each monochromatic light. The above-mentioned red background image, green background image, and blue background image are sequentially displayed at high speed, and a color image superimposed on human vision is projected. As shown in FIG. 7, the second preferred embodiment of the handheld device with a micro-projection system according to the present invention is substantially the same as the first preferred embodiment described above. The handheld device 10 is also a mobile phone, and the difference lies in this implementation. In the example, the projection system 1 adopts a reflective Liquid Crystal (Liquid Crystal 15 LC, LCOS) technology. Specifically, it is different from the first preferred embodiment described above in that the light modulation module 14 has a polarization beam splitter 142 disposed on the optical path 13, and a polarization beam splitter 142 disposed on the optical path 13 and connected to the control unit. 3ι electrically connected light modulator 143. The light modulator 143 is electrically connected to the control unit 31 and is driven and controlled by the semiconductor light source module 11 in synchronization with the semiconductor light source module 11. In this embodiment, the light modulator 143 is a reflective silicon liquid crystal element (LCOS Device), and the light emitted by the semiconductor light source module u travels along the optical path 13 and passes through the polarization beam splitter After 142, it is turned to the light modulator 143, and then modulated and reflected by the light modulator 143, so that 1232995 4 minutes of light passes through the polarization beam splitter 142 and is directed toward the lens module 12. In this embodiment, the polarization beam splitter 142 is a 稜鏡 -type polarization beam splitter 142, which has a polarization beam splitting surface 144 at an angle of 45 degrees to the optical path 13. However, it is not limited to this. Those skilled in the art will understand through the following description. As shown in FIG. 8, the polarizing beam splitter 142 can also be a flat polarizing beam splitter 142, and the surface 145 of the flat polarizing beam splitter 142 and the optical Path 13 is at an angle of 45 degrees. Therefore, when a color image is to be projected, when the control unit 31 captures digital information and separates the color image information of the digital information content into red-based image information, green-based image information, and blue-based image information, the synchronization is performed accordingly. Controlling the semiconductor light source module u and the light modulator 143; that is, when the control unit 31 controls the light emitting diode grain m (see FIG. 6) to emit red light, the red light passes through the polarization beam splitting The modulator 142 reflects the polarized light toward the light modulator 143. The light modulator 143 is controlled by the control unit 31 to synchronously modulate the RGB light according to the above-mentioned red-based image information, and remodulates the modulated light again. Towards the polarization beam splitter 142, at this time the polarization beam splitter 142 blocks part of the modulated (or unmodulated) light, and then 'projects the red base image through the lens module 12; the same applies to the control When the unit 31 controls the light-emitting diode die 112 (see FIG. 6) to emit green light, it can also synchronously control the light modulator 143 according to the above-mentioned green-based image information, and will pass the polarization beam splitter 142 and the The green base image modulated by the light modulator 143 is projected through the lens module 12; and although the control unit 31 can also synchronously control the light-emitting polar crystal grain 13 in the same manner as above (see FIG. 6) And the light modulator 143, and project the blue-based image modulated by the polarizing beam splitter 142 and the polarizer 143 through the lens module 12 through 12 5 10 15 20 1232995. Since the semiconductor light source module j] can directly drive and control the semiconductor light source module with the circuit 3, the group u can switch between the monochromatic lights with different bandwidths at a high speed that exceeds the period of human visual retention. Control unit 31: step-by-step driving the photodiode 143, in conjunction with the polarization splitter 142, to modulate each early-color light, so that the above-mentioned red-based image, green-based image, and blue-based image appear sequentially in high speed, and are projected on a human Color image superimposed visually. 1σ ,, as shown above, in the handheld device 10 with a micro-projection system according to the present invention, due to the projection system! During operation, monochromatic light without modulation is not generated from the semiconductor light source module η, so it saves considerable power
有效提昇光能利用效率。此外，雖_半導體光源模組U 具有三個發光二極體曰4彳 體日日粒111、H2、113，但由於該等發 粒：1:〗12、113是依序明滅，因此其所耗電 里…、、旁熱幾乎等同於單顆連續發亮之發光二極體；但 由於各發光二極艚曰Ψ 7 1 !。 枝體日曰粒iu、ll2、ll3*需連續發光，因 此將”有#乂單顆連續發亮之發光二極體更長的使用旁Effectively improve the efficiency of light energy utilization. In addition, although the _semiconductor light source module U has three light-emitting diodes, namely the four-body diurnal grains 111, H2, and 113, because these hair granules: 1: 〖12, 113 are extinguished in sequence, so In the power consumption ..., and the side heat is almost equivalent to a single continuously emitting light-emitting diode; but because each light-emitting diode 艚 艚 7 1!. On the branches, the grains iu, ll2, and ll3 * need to continuously emit light, so “有” single continuous light-emitting diodes will be used longer.
命。當然：’熟習該項技術者經由上述說明理當了解I 導體光源模組H所具有三個發光二極體晶粒⑴、⑴、 113也可以疋―同封裝於單—聚光反射器114(見圖6)中， 並直触置於料學㈣13之料端社， 的效果。 咬Η目问 由上述可知，該微型投影系統1能完全捨棄傳統投影 13 1232995 系統中的白熾光源，以及多組濾光片和色輪等分光模組， 大幅縮減系統所須元件數目，而達到系統簡化、省電，並 具較尚之光能利用效率之效果，確實得以將彩色投影系統 微型化，並整合於輕薄短小且電力較小的手持裝置中，充 分達到本發明之目的。 惟以上所述者，僅為本發明之二較佳實施例而已，當 不能以此限定本發明實施之範圍，即大凡依本發明申請專 利範圍及發明說明書内容所作之簡單的等效變化與修 飾，皆應仍屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是習知-種多光路遽光片式彩色投影系統之一示 意圖； 圖2是習知-種單一光路色輪式彩色投影系統之一示 意圖； —圖3是本發明具微型投影系統之手持裝置的第一較佳 實施例之一立體圖； 圖4是該第一較佳實施例之_示意方塊圖，說明一手 持裝置組成元件之連結關係； 圖5是該第-較佳實施例之—部份平面圖，說明一投 影系統之配置； 圖6是該第一較佳實施例之—示意圖，說明一半 光源模組11 ; 圖7是本發明具微型投影系統之手持裝置的第二較佳 實施例之—部份平面圖，說明一投影系統之配置；及 14 1232995 圖8是該第二較佳實施例之一部份平面圖，說明該投 影系統另一態樣之配置。Life. Of course: 'The person familiar with this technology should understand that the three light-emitting diode grains I, ⑴, and 113 of the I-conductor light source module H can also be 疋-the same packaged in the single-condenser reflector 114 (see Figure 6), and directly touch the effect of the material end of the material school. From the above, it can be seen that the miniature projection system 1 can completely abandon the incandescent light source in the traditional projection 13 1232995 system, as well as multiple sets of filters and color wheel and other spectroscopic modules, and greatly reduce the number of components required by the system to achieve The system is simplified, saves power, and has the effect of using more efficient light energy. It is indeed possible to miniaturize the color projection system and integrate it into a thin, light, short, and low-power handheld device, which fully achieves the purpose of the present invention. However, the above are only the two preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by this, that is, the simple equivalent changes and modifications made according to the scope of the patent application and the content of the invention specification of the present invention , All should still fall within the scope of the invention patent. [Brief description of the figure] Figure 1 is a schematic diagram of a conventional-multi-light-path light-chip color projection system; Figure 2 is a schematic diagram of a conventional-multi-light-channel color wheel-type color projection system; A perspective view of a first preferred embodiment of a handheld device with a micro-projection system according to the invention; FIG. 4 is a schematic block diagram of the first preferred embodiment, illustrating the connection relationship of the components of a handheld device; -A preferred embodiment—a partial plan view illustrating the configuration of a projection system; FIG. 6 is a schematic view of the first preferred embodiment—illustrating half the light source module 11; FIG. 7 is a handheld device with a miniature projection system according to the present invention A second preferred embodiment of the device—a partial plan view illustrating the configuration of a projection system; and 14 1232995 FIG. 8 is a partial plan view of a second preferred embodiment illustrating the configuration of another aspect of the projection system .
15 1232995 【圖式之主要元件代表符號說明】 1 投影系統 143 10 手持裝置 144 11 半導體光源模組 145 111 發光二極體晶粒 2 112 發光二極體晶粒 3 113 發光二極體晶粒 31 114 聚光反射器 32 115 合光稜鏡 33 116 分光導入面 34 117 合光導出面 4 12 鏡頭模組 5 13 光學路徑 6 14 光調制模組 7 141 微型反射鏡元件 71 142 極化分光 72 光調變器 - 極化分光面 表面 殼體 電路 控制單元 基頻單元 籲 射頻單元 天線模組 輸入介面 電子儲存媒體 電池 音響系統 麥克風 味j p八 鲁 1615 1232995 [Description of the main symbols of the drawings] 1 Projection system 143 10 Hand-held device 144 11 Semiconductor light source module 145 111 Light-emitting diode die 2 112 Light-emitting diode die 3 113 Light-emitting diode die 31 114 Condensing reflector 32 115 Combined light beam 33 116 Beam-splitting surface 34 117 Beam-receiving surface 4 12 Lens module 5 13 Optical path 6 14 Light modulation module 7 141 Micro-mirror element 71 142 Polarization beam splitting 72 Light adjustment Transformer-Polarization Beam Surface Housing Circuit Control Unit Fundamental Frequency Unit Radio Frequency Unit Antenna Module Input Interface Electronic Storage Media Battery Sound System Microphone 味 jp 八 鲁 16