TWI287687B - Light source projection device - Google Patents

Light source projection device Download PDF

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Publication number
TWI287687B
TWI287687B TW94120601A TW94120601A TWI287687B TW I287687 B TWI287687 B TW I287687B TW 94120601 A TW94120601 A TW 94120601A TW 94120601 A TW94120601 A TW 94120601A TW I287687 B TWI287687 B TW I287687B
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TW
Taiwan
Prior art keywords
light
light source
projection device
lens
source projection
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TW94120601A
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Chinese (zh)
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TW200700885A (en
Inventor
Po-Hung Yao
Heng-Chun Huang
Yu-Nan Pao
I-Kai Pan
Yi-Ting Sun
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Ind Tech Res Inst
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Publication of TWI287687B publication Critical patent/TWI287687B/en

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Abstract

A light source projection device includes a light emitting diode array, a collimating device, a light adjusting lens and an image generating portion. The light emitting diode array can emit at least a light beam. The collimating device is installed at the light-emitting side of the light-emitting diode array and can receive at least a light beam and collimate and transform the light beam into at least a parallel light beam. The light adjusting lens is installed adjacent to the light-emitting face of the collimating device and can receive at least a parallel light beam and adjust and transform the parallel light beam into at least a geometric light beam. The image generating portion can receive at least a geometric light beam and transform it into image.

Description

• 1287687 九、發明說明: . 【發明所屬之技術領域】 • 本發明是有關於光源投射裝置,尤其是指一種利用發 光二極體微光源再配合利用微透鏡陣列與光束整型元件來 產生投射光源之一種光源投射裝置。 【先前技術】 、以發光二極體(Light emitting diode)取代傳統燈泡 為光源,目前已成為顯示器技術發展之一重要趨勢。主要 疋因為發光二極體的三原色(紅、綠、藍)混光之光源頻譜, 比傳統燈源所產生之光譜應用於顯示系統時更能提供其所 需求之光譜的高色純度特性,因而較能真實呈現大自然中 紅、綠、藍色的色彩表現,顯示之影像更為鮮豔犀利,利 用具有二原色之發光二極體為光源產生之顯示裝置也是目 前唯一能挑戰且超越國際電視標準委員會(Nati〇nal• 1287687 IX. DESCRIPTION OF THE INVENTION: 1. Field of the Invention The present invention relates to a light source projection device, and more particularly to a projection using a light-emitting diode micro-light source in combination with a microlens array and a beam shaping element. A light source projection device for a light source. [Prior Art] The replacement of traditional light bulbs with light emitting diodes as a light source has become an important trend in the development of display technology. Mainly because of the spectrum of the light source of the three primary colors (red, green, blue) of the light-emitting diode, the spectrum generated by the conventional light source can provide the high-purity purity characteristic of the spectrum required by the display system. It is more realistic to present the red, green and blue color expressions in nature, and the displayed image is more vivid and sharp. The display device generated by using the light-emitting diodes with two primary colors as the light source is also the only challenge and beyond the international television standard. Committee (Nati〇nal

Television Standard Committee,NTSC)之色彩飽和度標 準。 ’、 • 因為發光二極體所具有之優勢,所以目前投入研究之 技術或者是專利也相當的多。請參閱圖一所示,該圖係為 省用之發光一極體光源裝置示意圖。該發光二極體光源^ '置1係揭露於U.S· Pat· 6, 224, 216之專利案中,該發光二 ·· 極體光源裝置1包括有複數個紅光二極體l〇r、複數個綠 ~ 光二極體1〇g、複數個藍光二極體10b、複數個光纖束u、 一混光管12以及一影像顯示裝置13。該光纖束u之一端 ,以,數個光纖111與該紅光二極體1〇r、綠光二極體1〇g ,者是藍光二極體10b相偶接。該複數個光纖束n之另一 端則與該混光管12相偶接,藉由光纖1U將發光二極 5 •1287687 10r、10g、10b(例如.·紅光、綠光或者是藍光)所發射出之 光導引至該混光管12混光之後,該影像顯示裝置13即接 收由該混光管12出射之光線經由轉換而產生影像。 雖然該篇專利所揭露之光源裝置為以發光二極體為光 源,然而該案中三原色之發光二極體是利用光纖111傳導 至混光管12後進行混光整形,因此在發光二極體與光纖的 摩馬光過程中會有大量的光損耗,且該模組組裝時會有元件 過多及組裝的對準問題,無形中增加了成本。 綜合上述,因此亟需一種光源投射裝置來解決習用技 術所產生之問題。 【發明内容】 本發明的主要目的是提供一種光源投射裝置,其係利 用發光二極體為光源配合微光學元件之使用,以提高光源 之使用效率與色純度,達到取代傳統色輪之目的。 本發明的次要目的是提供一種光源投射裝置,其係利 用發光二極體為光源配合微光學元件之使用,以減少對於 混光管(light pipe)的使用,達到模組輕薄化以及單純化 而縮減體積之目的。 為了達到上述之目的,本發明提供一種光源投射裝 置,其係包括:一發光二極體陣列、一準直元件、一整光 形透鏡以及一影像產生部。該發光二極體陣列,其係可發 射出至少一光束;該準直元件,其係設置於該發光二極體 陣列發光側,該準直元件可接收該至少一光束而準直轉換 成至少一平行光束;該整光形透鏡,其係設置於該準直元 件出光面側,該整光形透鏡可接收該至少一平行光束而將 該至少一平行光束整形轉換成至少一幾何光束;該影像產 6 I287687 , 生部,其係可接收該至少一幾何光束,而轉換成影像。 / 較佳的是,該準直元件係更具有可與該至少一光束相 • 對f之至少一準直微透鏡陣列單元,其中該準直微透鏡陣 歹1單元係可選擇為一菲淫爾透鏡(Fresnel lens)以及具有 寺弟度折射率變化透鏡(Gradient index lens)其中之—者。 較佳的是,該整光形透鏡係由至少一整光形透鏡單元 , 相#排列而成,該整光形透鏡單元之幾何形狀係可選擇為 圓形以及幾何多邊形其中之一者。其中該圓形之孔徑係介 _ 於10微米至500微米之間,該幾何多邊形可選擇為三角 形、矩形以及六邊形其中之一者且該幾何多邊形任一側邊 尺寸係介於10微米至500微米之間。 ^ 較佳的是,該影像產生部更包括有一光閥體以及一投 卞透鏡組,該光閥體更具有複數個微反射體,以接收該至 < —幾何光束而控制該入射之幾何光束至該投影透鏡組以 形成彩色影像。 較佳的是,該發光二極體陣列係可形成於_散熱基板 士。其中該散熱基板之材質係可選擇為鋁、陶瓷、銅以及 • 前述材料之合成物其中之一者。 較佳的是,該發光二極體陣列更偶接有一訊號控制電 路以控制該發光二極體陣列產生循序性光源。 、較佳的是,該準直元件以及該整光形透鏡之材質可選 ; 擇為一石英、光學玻璃以及高分子透明材料其中之一者。 【貫施方式】 為使貴審查委員能對本發明之特徵、目的及功能有 ,進—步的認知與瞭解,下文特將本發明之裝置的相關細 部結構以及設計的理念原由進行說明,以使得審查委員可 7 .1287687 以了解本發明之特點,詳細說明陳述如下: \ 請參閱圖二A所示,該圖係為本發明光源投射裝置之 , 較佳實施例組合示意圖。該光源投射裝置2其係包括:一 ‘ 散熱基板20、一發光二極體陣列21、一準直元件22、一 整光形透鏡23以及一影像產生部24。為了方便說明,圖 二A中之散熱基板20、發光二極體陣列21、準直元件22、 整光形透鏡23只顯示一部分。該發光二極體陣列21設置 '在該散熱基板20上且可發射出至少一光束91,該發光二 極體陣列21,係由複數個紅光二極體21卜綠光二極體212 •以及藍光二極體213依序相鄰排列,除此之外該發光二極 體陣列也可以由至少一多晶封裝型發光二極體相鄰排列而 成。由於該發光二極體陣列21在發射光源時會產生熱,為 了降低熱所造成對於電子元件之傷害而影響壽命,該散熱 基板20可以提供散熱的功用,而該散熱基板20之材質係 可選擇為鋁、陶瓷、銅以及前述材料之合成物其中之一者。 此外,為了取代傳統色輪之目的以提高光效率與色純度, 該發光二極體陣列21更偶接有一訊號控制電路27以控制 B 該發光二極體陣列產生循序性光源,使該紅光二極體、綠 光二極體以及藍光二極體輪流閃動以提供彩色影像所需之 單一色彩或混合色彩。 該準直元件22,其係設置於該發光二極體陣列21之 • 發光側,該準直元件22可接收該至少一光束91而準直轉 換成至少一平行光束92 ;該整光形透鏡23,其係設置於該 準直元件22出光面側,該整光形透鏡23可接收該至少一 平行光束92而將該至少一平行光束92整形轉換成至少一 幾何光束93 ;該影像產生部24,其係可接收該至少一幾何 光束93,而轉換成影像。該影像產生部24更包括有一光 8 1287687 閥體241以及一投影透鏡組242,該光閥體241更具有複 數個微反射體2411(如圖六所示),以接收該至少一幾何光 束而控制該入射之幾何光束至該投影透鏡組242以形成彩 色影像。其中,該光閥體241係可選擇為一穿透式液晶面 板、反射式液晶面板以及數位微型鏡裝置(Digital Mirror Device,DMD)其中之一者。此外,在該整光形透鏡23與該 影像產生部24之間更可以設置一混光管(1 ight pipe),進 行混光的動作。The color saturation standard of the Television Standard Committee (NTSC). ’, • Because of the advantages of light-emitting diodes, the technology or patents currently being researched are quite numerous. Please refer to FIG. 1 , which is a schematic diagram of a light-emitting one-pole light source device. The light-emitting diode light source is disclosed in the patent of US Pat. No. 6,224,216. The light-emitting diode body light source device 1 includes a plurality of red light-emitting diodes l〇r. A plurality of green to optical diodes 1 〇 g, a plurality of blue LEDs 10b, a plurality of fiber bundles u, a light mixing tube 12, and an image display device 13. One end of the fiber bundle u is such that a plurality of optical fibers 111 are coupled to the red diode 1 〇r, the green diode 1 〇 g, and the blue diode 10b. The other end of the plurality of fiber bundles n is coupled to the light mixing tube 12, and the light-emitting diodes 5U will emit 5?1287687 10r, 10g, 10b (for example, red light, green light or blue light). After the emitted light is guided to the light mixing tube 12 to be mixed, the image display device 13 receives the light emitted by the light mixing tube 12 to generate an image through conversion. Although the light source device disclosed in the patent uses a light-emitting diode as a light source, in this case, the light-emitting diodes of the three primary colors are transmitted to the light mixing tube 12 by the optical fiber 111, and then mixed and shaped, so that the light-emitting diode is used. There is a large amount of optical loss in the process of mating with the fiber, and the assembly of the module has too many components and assembly alignment problems, which inevitably increases the cost. In summary, there is a need for a light source projection device to solve the problems associated with conventional techniques. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a light source projection device that utilizes a light-emitting diode as a light source for use with a micro-optical element to improve the use efficiency and color purity of the light source, thereby achieving the purpose of replacing the conventional color wheel. A secondary object of the present invention is to provide a light source projection device that uses a light-emitting diode as a light source to cooperate with a micro-optical component to reduce the use of a light pipe to achieve thinning and simplification of the module. And the purpose of reducing the volume. In order to achieve the above object, the present invention provides a light source projection apparatus comprising: a light emitting diode array, a collimating element, a full light lens, and an image generating portion. The light emitting diode array emits at least one light beam; the collimating element is disposed on the light emitting side of the light emitting diode array, and the collimating element can receive the at least one light beam and collimate and convert into at least one light beam a parallel light beam; the whole light lens is disposed on a light emitting surface side of the collimating element, and the whole light lens can receive the at least one parallel beam to shape and transform the at least one parallel beam into at least one geometric beam; The image produces 6 I287687, which is capable of receiving the at least one geometrical beam and converting it into an image. Preferably, the collimating element further has at least one collimating microlens array unit that can be paired with the at least one beam, wherein the collimating microlens array unit 1 can be selected as a Fresnel lens and one of them has a Gradient index lens. Preferably, the monolithic lens is formed by at least one integral lens unit, phase #, and the geometry of the monolithic lens unit can be selected from one of a circle and a geometric polygon. Wherein the circular aperture is between 10 micrometers and 500 micrometers, and the geometric polygon can be selected as one of a triangle, a rectangle and a hexagon, and any side dimension of the geometric polygon is between 10 micrometers and Between 500 microns. Preferably, the image generating portion further includes a light valve body and a throwing lens group, the light valve body further having a plurality of micro-reflectors for receiving the geometric beam to control the incident geometry. A beam of light is directed to the projection lens group to form a color image. Preferably, the array of light emitting diodes can be formed on a heat sink substrate. The material of the heat dissipating substrate may be selected from the group consisting of aluminum, ceramic, copper, and a combination of the foregoing materials. Preferably, the LED array is further coupled with a signal control circuit for controlling the LED array to generate a sequential light source. Preferably, the collimating element and the material of the monolithic lens are optional; and one of quartz, optical glass and polymer transparent material is selected. [Comprehensive Mode] In order for the reviewing committee to have the knowledge, understanding and understanding of the features, objects and functions of the present invention, the detailed structure of the device of the present invention and the concept of the design are explained below. The reviewer can refer to 7.1287687 for a detailed description of the features of the present invention. The detailed description is as follows: \ Please refer to FIG. 2A, which is a schematic diagram of a preferred embodiment of the light source projection device of the present invention. The light source projection device 2 includes a heat dissipation substrate 20, a light emitting diode array 21, a collimating element 22, a uniform light lens 23, and an image generating portion 24. For convenience of explanation, only the heat-dissipating substrate 20, the light-emitting diode array 21, the collimating element 22, and the fin-shaped lens 23 in Fig. 2A show only a part. The LED array 21 is disposed on the heat dissipation substrate 20 and emits at least one light beam 91. The LED array 21 is composed of a plurality of red diodes 21 and a green diode 212. The blue light diodes 213 are arranged adjacent to each other in sequence, and the light emitting diode arrays may be arranged adjacent to each other by at least one polycrystalline package type light emitting diode. Since the LED array 21 generates heat when the light source is emitted, in order to reduce the damage to the electronic components caused by heat, the heat dissipation substrate 20 can provide heat dissipation, and the material of the heat dissipation substrate 20 can be selected. It is one of aluminum, ceramic, copper and a combination of the foregoing materials. In addition, in order to replace the traditional color wheel for improving the light efficiency and the color purity, the LED array 21 is further coupled with a signal control circuit 27 to control B. The LED array generates a sequential light source to make the red light. The diode, green diode, and blue LED flash in turn to provide a single color or mixed color for color images. The collimating element 22 is disposed on the light emitting side of the LED array 21, and the collimating element 22 can receive the at least one light beam 91 and be collimated into at least one parallel light beam 92; the whole light lens The illuminating lens 23 is configured to receive the at least one parallel beam 92 and shape the at least one parallel beam 92 into at least one geometric beam 93. The image generating portion is disposed on the light emitting surface of the collimating element 22 24, which can receive the at least one geometric beam 93 and convert it into an image. The image generating portion 24 further includes a light body 8 211687 valve body 241 and a projection lens group 242. The light valve body 241 further has a plurality of micro-reflectors 2411 (shown in FIG. 6 ) to receive the at least one geometric beam. The incident geometrical beam is controlled to the projection lens group 242 to form a color image. The light valve body 241 can be selected as one of a transmissive liquid crystal panel, a reflective liquid crystal panel, and a digital mirror device (DMD). Further, a light pipe (1 ight pipe) may be further disposed between the entire light lens 23 and the image generating portion 24 to perform a light mixing operation.

請參閱圖二C所示,該圖係為本發明光源投射裝置之 另一較佳實施例組合示意圖。其中該散熱基板20、該發光 二極體陣列21、該準直元件22、該整光形透鏡23係與前 述相同,在此不多作贅述,而該影像產生部係包括有一 反射式液晶面板261、一偏極化分光鏡262以及一投影透 鏡組263。該反射式液晶面板係為LCOS(LiquidCrystal on Silicon,IX0S)。該至少一幾何光束93會先通過該偏極化 分光鏡262 ’再經由反射至該反射式液晶面板261反射之 後再通過該偏極化分光鏡262而進入到該投影透鏡組263 產生影像。 請芩閱圖三A所示,該圖係為本發明較佳實施例中準 直元件之準直微透鏡陣列單元第一較佳實施例示意圖。該 準直7G件係更具有至少一準直微透鏡陣列單元221,以將 接收到之光線準質化,準直化之目的係將不同方向之入射 士改變成同-方向。在本實施例中’該微透鏡單元221係 == >圼爾透鏡(Fresnel lens)。又如@三B所示,該圖 ,為,發雜佳實_中準直元件之準直微透鏡陣列單元 例示意圖:在本實施例中,該準直微透鏡陣 丨早凡係為一具有梯度折射率變化透鏡222(Gradient 9 ^87687 index lens)。如圖三B中標號94之曲線係 折射率變化梯度曲線’所當該發光二極體陣歹广心=光 源經由該具有準直效果之準直微透鏡陣列單元 梯度,率變化透鏡)即可料时向之人射光線準;、匕。 閱圖四A所不’該圖係為本發明之發光二極體陣 2與準直凡件組合之第-較佳實施例示意圖。在本實施例 中,該發光二極體陣21列係可與該準直元件22封裝在一 起。或者如圖四B所示,該準直元件22係與該發光:極體 陣列21相距一距離以接收該發光二極體所產生 將入射之光線準直化。又如圖四C所示,該圖係為^發明 之發光-極體陣列與準直凡件組合之第三較佳實施例示意 圖。其中該發光二極體陣列其中之一發光單元21〇(由紅光 二極體、綠光二極體以及藍光二極體所組成)係與該準直元 件之準直微透鏡陣列單元221對應。該準直元件之材質可 選擇為一石英、光學玻璃以及高分子透明材料其中之一者。 請爹閱圖五A以及圖五B所示,該圖係分別為本發明 之整光形透鏡之整光形透鏡單元第一較佳實施例以及第二 較佳實施例示意圖。該整光形透鏡23、25係由至少一整光 形透鏡單元231、251相鄰排列而成,該整光形透鏡單元 231、251之幾何形狀係可選擇為圓形以及幾何多邊形其中 之一者。其中該圓形之孔徑係介於1〇微米至5〇〇微米之 間。遠幾何多邊形可選擇為三角形、矩形231 (如圖五a所 示)以及六邊形251(如圖五B所示)其中之一者。而該幾何 夕邊形任一侧邊尺寸係介於1 〇微米至5 〇 〇微米之間。由於 該第二位透鏡陣列23、25係由具有幾何形狀之整光形透鏡 單元231、251排列組合而成,因此當光線入射之後,藉由 4整光形透鏡單元231、251可以對入射之光線作整形的動 1287687 作。該整糾透鏡23、25之材質可 璃以及高分子透明材料其中之一者。 干 請爹閱圖二Α以及圖二Β所示,接下來說明本發明之 動作原理。當該發光二極體陣列21 通過該準直元件22時,人射之先線可藉由該準直元^ 22 之準直效果而將人射光束準直化以形成複數個平行光束 92。請參關1所示,在本說明實施例中,通過 元件22而被準直化之光束92外緣係呈現圓形的狀離,之 後為配合投影機中之光閥體241之幾何外型,因^整光 形透鏡23之整光形透鏡單元則選擇以矩形來實施(如圖五 Α所示)。所以當該平行光束92通過該整光形透鏡23時候, 該整光形祕23巾之㈣騎鏡單元可將圓形之光 化為矩形分佈之幾何光束93(如圖二β所示),然後進入投 影系統的光_ 241 (如穿透式液晶面板、反射式液晶面 板以及數位微型鏡裝置(Digital Mirr〇rDevice,MD)) 中,再將光反射至投影透鏡組242以產生出彩色影像。 發光二極體陣列21之光源可搭配該訊號控制電路 27’以控制該發光二極體陣列21之三原色二極體輪流閃動 的方式提供顯7F彩色影像時照射在光閥裝置上所需之單色 或多色混合之光源,此作用即可取代傳統投影機中使用色 輪來提供色彩之效果’由於本專狀投影架構巾没有如色 輪之類的彩色缝it件且⑽本身色彩純度高,因此搭配 紅光二極體、綠光二極體以及藍光二極體所產生之光源來 配合新一代投影機將可大幅提升光使用效率(30%以上)並 同時提供色料軸和之彩色投影影像(將大於丨_國家 電視標準委員♦ (NTSC)規範的色彩再生範圍)。 唯以上所述者,僅為本發明之較佳實施例,當不能以 1287687 之I艮制本發明範圍。即大凡依本發明申請專利範圍所做之 均等鋟化及修飾,仍將不失本發明之要義所在,亦不脫離 =發明之精神和範圍,故都應視為本發明的進一步實施狀 综合上述,本發明由於具有可發揮製程簡易、效率高 ^點所以可以毅業界之需求,進而提高該產業之競_ ^ ’減已符合發明專利法所規定中請發 要 二==呈提發明專利之申請,謹請貴審查委員允 撥日才間惠予審視,並賜準專利為禱。 【圖式簡單說明】 圖一係為習用之發光二極體光源裝置示意圖。 二A係為本發明光源投射裝置之較;施例組合示意 圖二 圖二 意圖 B係為本發明之較佳實施例中光整形示立图。 C係為本發明光源投射裝置之另—較佳&例組合示 〇 實㈣巾準直元件之準直微透鏡陣 糾早7L弟一較佳實施例示意圖。 卞 歹圖為佳實施例中準直元件之準直微透鏡陣 歹j早7L弟一較佳貫施例示意圖。 圖四A係為本發明之發光二極體陣顺準 —較佳實施例示意圖。 午、、。之弟 圖四B係為本發明之發光二極體陣列與 二較佳實施例示意圖。 兀仵、、且口之弟 圖,C係為本發明之發光二極體陣列與準直元件组笛 二較佳實施例示意圖。 、、口之弟 12 .1287687 圖五A係為本發明之整光形透鏡之整光形透鏡單元第一較 _ 佳實施例示意圖。 • 圖五B係為本發明之整光形透鏡之整光形透鏡單元第二較 ^ 佳實施例示意圖。 圖六係為光閥體内之微反射體式意圖。 【主要元件符號說明】 , 1-習用光源裝置 1 Or-紅光二極體 I 10g-綠光二極體 1 Ob-藍光二極體 11_光纖束 111 -光纖 12- 混光管 13- 影像顯示裝置 2-光源投射裝置 20- 散熱基板 21- 發光二極體陣列 210- 發光單元 211- 紅光二極體 212 -綠光二極體 . 213-藍光二極體 ’ 22-準直元件 221、222-準直微透鏡陣列單元 23- 整光形透鏡 231-整光形透鏡單元 24- 影像產生部 13 1287687 241- 光閥體 2411-微反射體 242- 投影透鏡組 25- 整光形透鏡 251-整光形透鏡單元 26- 影像產生部 261- 反射式液晶面板 262- 偏極化分光鏡 263- 投影透鏡組 27- 訊號控制電路 91 -光束 92- 平行光束 93- 幾何光束 94- 折射率梯度Please refer to FIG. 2C, which is a schematic diagram of another preferred embodiment of the light source projection device of the present invention. The heat-dissipating substrate 20, the light-emitting diode array 21, the collimating element 22, and the whole-light lens 23 are the same as those described above, and are not described herein. The image generating unit includes a reflective liquid crystal panel. 261. A polarization polarizing beam splitter 262 and a projection lens group 263. The reflective liquid crystal panel is LCOS (Liquid Crystal on Silicon, IX0S). The at least one geometrical beam 93 is first reflected by the polarizing beam splitter 262' and reflected by the reflective liquid crystal panel 261 and then passed through the polarizing beam splitter 262 to enter the projection lens group 263 to generate an image. Please refer to FIG. 3A, which is a schematic diagram of a first preferred embodiment of a collimating microlens array unit of a collimating element in accordance with a preferred embodiment of the present invention. The collimated 7G member further has at least one collimating microlens array unit 221 for quantifying the received light, and the purpose of collimating is to change the incidents in different directions into the same direction. In the present embodiment, the microlens unit 221 is a == > Fresnel lens. As shown in @三B, the figure is a schematic diagram of a collimating microlens array unit of a miscellaneous _ middle collimating element: in this embodiment, the collimating microlens array is an early There is a gradient index change lens 222 (Gradient 9 ^ 87687 index lens). As shown in Fig. 3B, the curve of the reference numeral 94 is the refractive index change gradient curve 'when the light-emitting diode array is wide-centered = the light source passes through the collimated microlens array element gradient with the collimation effect, the rate change lens) When the material is shot, the light is directed to the person; Figure 4A is a schematic view of a preferred embodiment of the combination of the LED array 2 and the collimated component of the present invention. In the present embodiment, the array of light emitting diodes 21 can be packaged with the alignment element 22. Alternatively, as shown in Fig. 4B, the collimating element 22 is spaced from the illuminating body array 21 to receive the illuminating diode to collimate the incident ray. Further, as shown in Fig. 4C, the figure is a schematic view of a third preferred embodiment of the combination of the illuminating-pole array and the collimating member of the invention. One of the light-emitting diode arrays 21 (composed of a red light diode, a green light diode, and a blue light diode) corresponds to the collimating microlens array unit 221 of the collimating element. The material of the collimating element can be selected from one of quartz, optical glass and polymer transparent material. Please refer to FIG. 5A and FIG. 5B, which are respectively a first preferred embodiment and a second preferred embodiment of the monolithic lens unit of the monolithic lens of the present invention. The whole light-shaped lens 23, 25 is formed by arranging at least one whole-light lens unit 231, 251 adjacent to each other, and the geometry of the whole-light lens unit 231, 251 can be selected as one of a circle and a geometric polygon. By. Wherein the circular aperture is between 1 〇 micrometer and 5 〇〇 micrometer. The far geometry polygon can be selected as one of a triangle, a rectangle 231 (as shown in Figure 5a), and a hexagon 251 (shown in Figure 5B). The geometry of either side of the geometrical shape is between 1 〇 micrometer and 5 〇 〇 micron. Since the second lens arrays 23 and 25 are formed by arranging and arranging the lenticular lens units 231 and 251 having geometric shapes, the incident light can be incident by the four whole-light lens units 231 and 251 after the light is incident. The light is shaped by the movement of 1287687. The material of the correcting lens 23, 25 is one of a glass material and a polymer transparent material. Please refer to Figure 2 and Figure 2, and the principle of operation of the present invention will be described next. When the LED array 21 passes through the collimating element 22, the line of human incidence can collimate the beam of the human beam by the collimating effect of the collimating element 22 to form a plurality of parallel beams 92. Referring to Figure 1, in the illustrated embodiment, the outer edge of the beam 92 that is collimated by the element 22 exhibits a circular shape, which is followed by the geometric shape of the light valve body 241 in the projector. The monolithic lens unit of the monolithic lens 23 is selected to be implemented in a rectangular shape (as shown in FIG. Therefore, when the parallel beam 92 passes through the monolithic lens 23, the (four) riding mirror unit of the monolithic lens can convert the circular light into a geometric beam 93 of a rectangular distribution (as shown in FIG. 2β). Then enter the light _ 241 of the projection system (such as a transmissive liquid crystal panel, a reflective liquid crystal panel, and a digital micromirror device (MD)), and then reflect the light to the projection lens group 242 to generate a color image. . The light source of the LED array 21 can be matched with the signal control circuit 27' to control the flashing of the three primary color diodes of the LED array 21 to provide illumination for the light valve device when the 7F color image is displayed. Monochromatic or multi-color mixed light source, this role can replace the use of color wheel in traditional projectors to provide color effect 'Because this special projection projection towel does not have color sewing like color wheel and (10) its own color purity High, so with the light source generated by the red diode, green diode and blue diode to match the new generation of projectors, the light efficiency (more than 30%) can be greatly improved and the color axis and color can be provided at the same time. Projected imagery (will be greater than the color reproduction range of the National Television Standards Committee ♦ (NTSC) specification). The above is only the preferred embodiment of the present invention, and the scope of the present invention cannot be made by the 1287687. That is, the equivalents and modifications of the scope of the present invention will remain without departing from the spirit and scope of the invention, and therefore should be considered as a further embodiment of the present invention. The invention has the advantages of being simple in process and high in efficiency, so that it can meet the needs of the industry, and thereby improve the competition of the industry _ ^ 'subtracted to meet the requirements of the invention patent law, please send two == invention patent To apply, I would like to ask your review board to allow the day to be reviewed and to grant a patent as a prayer. [Simple description of the diagram] Figure 1 is a schematic diagram of a conventional light-emitting diode light source device. The second embodiment is a comparison of the light source projection devices of the present invention; the combination of the embodiments is shown in FIG. 2 and FIG. 2 is intended to be a light shaping diagram of the preferred embodiment of the present invention. C is a schematic diagram of a preferred embodiment of the light source projection device of the present invention, which is a combination of a preferred embodiment and a collimating microlens array of collimating elements.歹 The diagram is a schematic diagram of a collimating microlens array of collimating elements in the preferred embodiment. Figure 4A is a schematic view of a preferred embodiment of a light-emitting diode array of the present invention. Noon, and. Figure 4B is a schematic view of a light emitting diode array and a second preferred embodiment of the present invention.兀仵,和口口弟图, C is a schematic diagram of a preferred embodiment of the light-emitting diode array and the collimating element group flute of the present invention. And the younger brother of the mouth 12. 1287687 Figure 5A is a schematic view of the first comparative embodiment of the monolithic lens unit of the monolithic lens of the present invention. Figure 5B is a schematic view of a second preferred embodiment of the monolithic lens unit of the monolithic lens of the present invention. Figure 6 is the micro-reflector intent of the light valve body. [Main component symbol description] , 1- Conventional light source device 1 Or-red diode II 10g-green diode 1 Ob-blue diode 11_fiber bundle 111 - fiber 12-mixer 13 - image display Device 2 - Light source projection device 20 - Heat sink substrate 21 - Light emitting diode array 210 - Light emitting unit 211 - Red light diode 212 - Green light diode. 213 - Blue light diode ' 22 - Collimating element 221, 222 - Collimating microlens array unit 23 - Whole light lens 231 - Whole light lens unit 24 - Image generating portion 13 1287687 241 - Light valve body 2411 - Micro reflector 242 - Projection lens group 25 - Whole light lens 251 - Whole-light lens unit 26 - Image generating portion 261 - Reflective liquid crystal panel 262 - Polarizing beam splitter 263 - Projection lens group 27 - Signal control circuit 91 - Beam 92 - Parallel beam 93 - Geometric beam 94 - Refractive index gradient

1414

Claims (1)

1287687 、申請專利範圍: 一種光源投射裝置,其係包括: 一發光二極體陣列,其係可發射 一準J元件,其係設置於該發光二極體陣列之發光侧, 1直元件可接找至少— 成至少 一平行光束;1287687, the scope of patent application: A light source projection device, comprising: an array of light emitting diodes, which can emit a quasi-J element, which is disposed on the light emitting side of the array of the light emitting diodes, and the straight component can be connected Find at least - at least one parallel beam; 2· 3· 一,光形透鏡’其係設置於該準直元件出光面側,該整 可接收該至少—平行光束而將該至少-平 一仃光束杨轉換成至少—幾何光束;以及 一 f象產生部,其係可接收該至少-幾何光束’而轉換 成影像。 ;申;=利範圍第1項所述之光源投射裝置,其中該發 =-極體陣列係由複數個紅光二極體、複數個綠光二極 光二極體依序相鄰排列組合而成。 π專利乾圍第1項所述之光源投射裝置,其中該發 ::一極體陣列係由至少_多晶封裝型發光二極體相鄰 排列而成。2·3·1, the optical lens is disposed on the light-emitting surface side of the collimating element, and the whole can receive the at least-parallel beam and convert the at least-flat beam into at least a geometric beam; and an f The image generating portion is adapted to receive the at least-geometric beam and convert it into an image. The light source projection device of the first aspect of the invention, wherein the hair electrode array is formed by a plurality of red light diodes and a plurality of green light dipoles arranged adjacently in sequence. . The illuminating device of the light source according to the first aspect of the present invention, wherein the </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; 4.=請專利範圍第1項所述之光源投射裝置,其中該準 、ρ兀件係可選擇與該發光二極體陣列封裝在一起以及 遥擇與該發光二極體陣列相距一距離其中之一者。 5·如申w專利範圍第1項所述之光源投射裝置,其中該準 直π件係更具有可與該至少一光束相對應之至少一準 直微透鏡陣列單元。 6·如:請專利範圍第5項所述之光源投射裝置,其中該準 直微透鏡陣列單元係可選擇為一菲涅爾透鏡(Fresne 1 lenS)以及具有梯度折射率變化透鏡(Gradient index lens)其中之一者。 15 •1287687 7·如申請專利範圍第1項所述之光源投射裝置,苴中該整 光形透鏡係由至少一整光形透鏡單元相鄰排列而成,該 整光形透鏡單元之幾何形狀係可選擇為一圓形以及一 幾何多邊形其中之一者。 8·如申請專利範圍第7項所述之光源投射裝置,其中該圓 形之孔徑係介於1〇微米至500微米之間。 9·如申請專利範圍第7項所述之光源投射裝置,其中該幾 何夕邊形可選擇為三角形、矩形以及六邊形其中之一 者。 10. ^如申請專利範圍第9項所述之光源投射裝置,其中該 ^何多邊形任一側邊尺寸係介於1〇微米至5〇〇^米^ 11.&amp;如申請專利範圍第丨項所述之光源投射裝置,其中該 影像產生部更包括有一光閥體以及一投影透鏡组,該光 閥體更具有複數個微反射體,以接收該至少一幾何光束 =控制該入射之幾何光束至該投影透鏡組以形成彩色 影像。 12.如申請專利範圍第11項所述之光源投射裝置,其中該 光閥體係可選擇為—穿透式液晶面板、—反射式液晶= 板以及一數位微型鏡裝置⑺^丨仏丨鼯^沉“…⑶㈨ 其中之一者。 ’ 13·如申請專利範圍第u項所述之光源投射裝置,其中該 光閥體與該整光形透鏡之間更設置有一混光管(/'1 = pipe) 。 ^ 14·如申請專利範圍第u項所述之光源投射裝置,i中該 整光形透鏡係由至少一整光形透鏡單元相鄰排列: 成,該整光形透鏡單元之幾何形狀係可選擇為一圓形以 16 .1287687 及一幾何多邊形其中之一者。 15·如ψ請專利範圍第μ項所述之光源投射裝置,其中該 ‘ 員形之孔杈係介於10微米至500微米之間。 16·如申晴專利範圍第μ項所述之光源投射裝置,其中該 、何多邊形可選擇為三角形、矩形以及六邊形其中之一 者。 17· μ如申/青專利範圍第16項所述之光源投射裝置,其中該 , 成何多邊形任一側邊尺寸係介於10微米至500微米之 間。 丁 _ 18·^二申請專利範圍第丨4項所述之光源投射裝置,其中該 整光形透鏡單元之外型輪廓係與該微反射體之外型輪 廓相對應。 19·如申請專利範圍第丨項所述之光源投射裝置,其中該 發光二極體陣列係可形成於一散熱基板上。 20、如申請專利範圍第19項所述之光源投射裝置,其中該 散熱基板之材質係可選擇為鋁、陶瓷、銅以及前述材料 之合成物其中之一者。 21·如申請專利範圍第丨項所述之光源投射裝置,其中該 發光二極體陣列更偶接有一訊號控制電路以控制該發 光二極體陣列產生循序性光源。 22.如申請專利範圍第(項所述之光源投射裝置,其中該 準直元件以及該整光形透鏡之材質可選擇為一石/英、= 學玻璃以及南分子透明材料其中之一者。 174. The light source projection device of claim 1, wherein the quasi-p-type member is selectively packaged with the LED array and remotely spaced from the LED array. One of them. The light source projection device of claim 1, wherein the collimating π-piece further comprises at least one collimating microlens array unit corresponding to the at least one light beam. 6. The light source projection device of claim 5, wherein the collimating microlens array unit is selected from a Fresnel lens (Fresne 1 lenS) and a gradient index lens (Gradient index lens) One of them. The light source projection device of claim 1, wherein the monolithic lens is formed by arranging at least one full-light lens unit adjacent to each other, and the geometry of the whole-light lens unit The system can be selected as one of a circle and a geometric polygon. 8. The light source projection device of claim 7, wherein the circular aperture has a pore size between 1 and 5 microns. 9. The light source projection device of claim 7, wherein the geometric shape can be selected from one of a triangle, a rectangle, and a hexagon. 10. The light source projection device of claim 9, wherein the side dimension of the polygon is between 1 〇 micrometer and 5 〇〇 ^ m ^ 11. &amp; The light source projection device, wherein the image generating portion further comprises a light valve body and a projection lens group, the light valve body further has a plurality of micro-reflectors for receiving the at least one geometric beam = controlling the incident geometry A beam of light is directed to the projection lens group to form a color image. 12. The light source projection device of claim 11, wherein the light valve system is selected to be a transmissive liquid crystal panel, a reflective liquid crystal panel, and a digital micromirror device (7). A light source projection device according to the invention of claim 5, wherein a light mixing tube is further disposed between the light valve body and the whole light lens (/'1 = The light source projection device of claim u, wherein the monolithic lens is arranged adjacent to at least one full-light lens unit: the geometry of the whole-light lens unit The shape can be selected as a circular shape with one of 16.1287687 and a geometric polygon. 15· The light source projection device described in the scope of the patent item, wherein the 'personal shape of the hole is between 10 Between micron and 500 micrometers. 16· The light source projection device according to the item [19] of the patent application, wherein the polygon can be selected as one of a triangle, a rectangle and a hexagon. Light source projection described in item 16 of the patent scope The light source projection device of the fourth aspect of the invention, wherein the size of the lens is between 10 micrometers and 500 micrometers. The unit outline of the unit corresponds to the shape of the micro-reflector. The light source projection apparatus according to the above aspect of the invention, wherein the array of light-emitting diodes can be formed on a heat-dissipating substrate. The light source projection device of claim 19, wherein the material of the heat dissipation substrate is selected from the group consisting of aluminum, ceramic, copper, and a combination of the foregoing materials. The light source projection device of the present invention, wherein the light emitting diode array is further coupled with a signal control circuit for controlling the light emitting diode array to generate a sequential light source. 22. The light source projection device of claim The material of the collimating element and the monolithic lens may be selected from one of a stone/ying, a glass, and a southern molecular transparent material.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8186840B2 (en) 2007-12-31 2012-05-29 Industrial Technology Research Institut Standard illuminant apparatus capable of providing standard LED light
US8786170B2 (en) 2010-08-24 2014-07-22 Delta Electronics, Inc. Optical system for providing telecentric light beam

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI418918B (en) * 2010-11-19 2013-12-11 Wintek Corp Illumination module and projection apparatus
TWI461736B (en) * 2012-09-19 2014-11-21 Kuo Chin Huang Totally effective light collecting method
US9052418B2 (en) 2013-10-08 2015-06-09 Industrial Technology Research Institute Light source module

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8186840B2 (en) 2007-12-31 2012-05-29 Industrial Technology Research Institut Standard illuminant apparatus capable of providing standard LED light
US8786170B2 (en) 2010-08-24 2014-07-22 Delta Electronics, Inc. Optical system for providing telecentric light beam

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