200914767 九、發明說明： 【發明所屬之技術領域】 本發明是關於光輸出系統。 【先前技術】 在發光二極體（LED)照明應用中，温八 T 此合（例如，顏色混 合）及校準光學通常是討論的話題。為 β , 馮此，複合拋物線形 聚光器（CPC)用於許多期望^混合及波束校準之應用中。200914767 IX. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a light output system. [Prior Art] In light-emitting diode (LED) lighting applications, this combination (e.g., color mixing) and calibration optics is often the subject of discussion. For β, Feng, a compound parabolic concentrator (CPC) is used in many applications where hybridization and beam alignment are desired.
在此等應用中’該CPC具有-小的輪人端，其中來自一 LED之光被引進；及一大的輸出端， CPC。 其操作使光離開該 然而，為獲得高校準（低校準輸出角），該CPC必須相當 長。為減低總長度，該CPC可以一較短CPC替代，其具= 一較大輪出角，及在較短CPC前面放置一非球面透鏡用於 提供附加校準。總組合（(^(:+丨如幼與具有相同校準角之單 一（較長）CPC相比，將短很多。 然而，當此等一CPC-lens組合與一單LED 一起使用時， 輸出通量被限制。關於此，幾個LED可提供cpc_lens組 合。雖然光輸出被增加，但是幾個！^ΕΕ)需要一顯著較大的 CPC及透鏡，導致一具有總尺寸增加的系統，使得其在尺 寸方面不適於用於某一應用，例如可攜式設備。 【發明内容】 本發明之一目標是至少部分克服此問題，及提供一改良 光輸出系統。一特別目標是提供一具有改良光輪出及小巧 尺寸之光輪出系統。 130489.doc 200914767 在下述概述及說明中將顯而易見此等及其它目標，可根 據請求们之光輪出系統獲得，包含：一相鄰配置之非圖 像光予7L件之陣列，其中各光學元件調適以均勻化及校準 來自與光學元件相關之一光源單元之光；及一調適以接收 及進一步使藉由光學元件均句化及校準之光成形之透鏡。 本發明是基於在一 P車列中放i幾個彼此靠近的此等光學 元件或部件之理解，-單-透鏡可用以進_步使由幾個光 學兀件操作之光成形，其提供一小型系統(僅一透鏡，小 的光干元件）’其光輸出可被增加（幾個光源單元比作一單 一光源），二側元件之間相鄰配置光學元件可被放置有或 沒有小間陽:，下文將更多解釋。同時，本發明之内容中之 "校準’’大體而言是指光束較少偏離，未必完全平行之光射 線。 較佳地，各光學元件之輸出端被緊鄰配置在至少一其他 光學元件之輸出端側。例如各輸出端可與陣列之至少—其 他光學7L件之輪出端接觸。以此方式，當該等透鏡調適以 成像在遠場中陣狀光學元件之輸出料，合成照明視窗 中圖像輸出端之間的接縫或間隙可被減低或消除，其提供 -均勻化照明視窗。一陣列之光學元件之輸出端之間的小 間隙（例如大約達到輸出端直徑之百分之十）可被接受，具 有減低但仍合乎性能（例如關於照明均勻性）之結果（如果存 在一間隙，接縫可繪示在遠場中照明窗口中）。然而，在 照明窗口中一太大的間隙可導致一不一致的強度。如果存 在一小的間隙，例如透鏡可調適以成像在一稍微在輸出端 130489.doc 200914767 之後的表面，以使照明窗口中接縫模糊及使其等不明顯。 同時代替在遠場成像，例如，在一投影機中一 DLP或 LCD可被照明。 透鏡較佳地是一非球面透鏡，但其他適宜透鏡可被使 用，諸如一球面透鏡。然而，一非球面透鏡具有比此等其 他透鏡較好的性能。 在一實施例中，光學元件總共是_，4η是整數具有In such applications, the CPC has a small wheel end where light from an LED is introduced; and a large output, CPC. Its operation leaves the light away. However, in order to achieve a high calibration (low calibration output angle), the CPC must be quite long. To reduce the overall length, the CPC can be replaced by a shorter CPC with a larger rounding angle and an aspherical lens placed in front of the shorter CPC for additional calibration. The total combination ((^(:+) is much shorter than a single (longer) CPC with the same calibration angle. However, when such a CPC-lens combination is used with a single LED, the output is The amount is limited. In this regard, several LEDs can provide a combination of cpc_lens. Although the light output is increased, several !^ΕΕ) require a significantly larger CPC and lens, resulting in a system with an overall increase in size, making it Dimensional aspects are not suitable for use in a certain application, such as a portable device. SUMMARY OF THE INVENTION One object of the present invention is to at least partially overcome this problem and to provide an improved light output system. A particular object is to provide an improved light wheel. And a small-sized light wheeling system. 130489.doc 200914767 It will be apparent from the following summary and description that these and other objectives can be obtained from the light-off system of the requester, including: an adjacent image of non-image light to 7L pieces An array of optical elements adapted to homogenize and calibrate light from a source unit associated with the optical element; and an adaptation to receive and further enable the optical element And calibrated light-shaping lenses. The present invention is based on the understanding that a plurality of such optical elements or components are placed close to each other in a P-vehicle, and the single-lens can be used to make several optical passes. Light shaping of the operation, which provides a small system (only one lens, small light-drying element) whose light output can be increased (several light source units are compared to a single light source), and optical fibers are arranged adjacent to each other between the two side elements The component may be placed with or without a small yang: as will be explained more below. Meanwhile, "calibration" in the context of the present invention generally refers to a beam of light that is less deflected and not necessarily completely parallel. The output ends of the optical elements are disposed adjacent to the output end of at least one other optical element. For example, each output end can be in contact with at least the other optical 7L of the array. In this manner, when the lenses are adapted To image the output of the array optics in the far field, the seam or gap between the image output ends in the composite illumination window can be reduced or eliminated, providing a uniformized illumination window. An array of optical components Small gaps between the outputs (eg, up to about ten percent of the diameter of the output) can be accepted, with reduced but still performance (eg, with respect to illumination uniformity) (if there is a gap, the seam can be drawn In the far field the illumination window). However, a too large gap in the illumination window can result in an inconsistent intensity. If there is a small gap, for example the lens can be adapted to image at a slightly at the output 130489.doc 200914767 The subsequent surface is such that the seam in the illumination window is blurred and rendered inconspicuous. Also instead of imaging in the far field, for example, a DLP or LCD can be illuminated in a projector. The lens is preferably an aspheric lens. However, other suitable lenses can be used, such as a spherical lens. However, an aspheric lens has better performance than such other lenses. In an embodiment, the optical elements are _ in total, 4 η is an integer having
m及η至少其中之一者大於1，及_光學元件被配置在⑴列 及晴。例如，m=n=2形成四光學元件西己置在一 Μ陣列。 其他陣列包含3X3、3X2等等。無論如何，光學元件之數量 及透鏡之場（接受角）應匹配。 :佳地，光學元件係正方形。例如，光學元件之輸出端 可為正方形。關於此，在一 2χ2陣列中，“學元件可提 供-象限’該等象限在遠場中共同(無縫)形成一正方形或 矩形(亦即’四邊基本上是直角)照明視窗。在照明應用中 二正㈣或矩形照明視窗是有利的如錄影機凟相機或具 广備之行動電話，(視頻)投影機，物體之照明(建率、 π術裝飾、視窗等等），等等。或者，光風 士、 他形狀：矩形、圓形、蜂巢等等 。、’、 精田選擇適宜形狀及陣 1，可提供照明視窗之各種縱橫比，例如， 16 ·· 9 ’ 等等。 ‘ i ' 4 ‘ h ^ (CPC) 丁/"丨卞疋複合拋物線形聚光 益（CPC)，當提到校準及均勻 的）時，立S且古以上 進仃均勻化分佈目 扪’’其等具有較好性能。或者 〃、他非圖像光學元件 130489.doc 200914767 了：使用’諸如棒形、錐形結 是空心或實心…空心光學 ⑽+學讀可 -^ ^ ^ 可具有—反射内表面，而 1〜先學7L件可充滿—且右摘〜 /、有適且折射率之材料。At least one of m and η is greater than 1, and the optical element is disposed in column (1) and clear. For example, m = n = 2 forms a quad optical element that is placed in an array. Other arrays include 3X3, 3X2, and so on. In any case, the number of optical components and the field of the lens (acceptance angle) should match. : Good, the optical components are square. For example, the output of the optical element can be square. In this regard, in a 2 χ 2 array, the "study element can provide - quadrant" the quadrants in the far field together (seamlessly) form a square or rectangular (ie, 'four sides are substantially right angles) illumination window. In lighting applications The second (four) or rectangular illumination window is advantageous, such as a video camera or a wide-ranging mobile phone, a (video) projector, illumination of objects (building rate, π decoration, windows, etc.), etc. , light wind, his shape: rectangular, round, honeycomb, etc., ', Jingtian choose the appropriate shape and array 1, can provide a variety of aspect ratio of the lighting window, for example, 16 · · 9 ' and so on. ' i ' 4 ' h ^ (CPC) Ding / "丨卞疋 compound parabolic polyphoto (CPC), when referring to calibration and uniformity), the vertical S and the above-mentioned uniform distribution of the distribution of the target '' Has better performance. Or 〃, his non-image optics 130489.doc 200914767: use 'such as rod shape, cone knot is hollow or solid... hollow optics (10) + learning can - ^ ^ ^ can have - reflection inside Surface, while 1~ learn 7L pieces can be full - and right pick ~ And a refractive index of the material has suitable.
而且’在一實施例中，冬 M LED^ m-wv ^ 源早兀包含至少一LED。 之優點包含暫態接通、長壽 每個光學元件使用一 LED，以使井…寺寻較佳地 ,,,, 以使先學疋件及透鏡之尺寸最 Π:?個光學元件使用，要一具有大約需 L:光學元件之尺寸之-半之光學元件。代替 LEO，可使用其他適宜光源。 一^另―實施例中，光輸出系統進一步包含一放置在光學 ^件及透鏡之間的擴散元件，以進一步使發光強度分佈均 匕以提供—均句化照明視窗。或者，或作為補充，一類 似擴散元件可位於锈浐 '透鏡之後，亦即，較之光學元件在透鏡 之對側，以使照明更均勾化。而且，光輸出系統較佳地是 -照明系統，亦即，其具有一足夠高的光輸出以 照明一物體。 【實施方式】 圖1疋根據本發明之—實施例之—光輸出系統⑺之概略 透視圖。光輸出系統i 〇較佳地是_照明系統調適以至少部 分地照明一物體。Moreover, in an embodiment, the winter M LED^ m-wv ^ source comprises at least one LED. The advantages include transient turn-on, longevity, and the use of an LED for each optical component, so that the well is better, and, in order to make the size of the first element and the lens the most flawed: An optical component having a size of approximately half the size of the optical element. Instead of LEO, other suitable light sources can be used. In an alternative embodiment, the light output system further includes a diffusing element disposed between the optical member and the lens to further distribute the luminous intensity distribution to provide a uniform illumination window. Alternatively, or in addition, a type of diffusing element may be located behind the rust 'lens, i.e., on the opposite side of the lens from the optical element to more evenly illuminate the illumination. Moreover, the light output system is preferably an illumination system, i.e., it has a sufficiently high light output to illuminate an object. [Embodiment] Fig. 1 is a schematic perspective view of a light output system (7) according to an embodiment of the present invention. The light output system i 〇 is preferably _ illuminating the system to at least partially illuminate an object.
系統1 0包含—_目士 A ° 3 具有四複合拋物線形聚光器（CPC)12之陣 J各CPC具有—小輸入端（輸入孔徑）14及一大輸出端（輪System 1 0 contains -_Mesh A ° 3 has a quad compound parabolic concentrator (CPC) 12 array J each CPC has - small input (input aperture) 14 and a large output (wheel
出孔徑）16。在各CPC 12之輸入端14，提供一包含一LED 1 8之光源單元’形成總共四個LED丨8。如先前技術，就其 130489.doc 200914767 本身而言’各CPC 12是一非成像光學伺服以校準由相關 LED 18發射的光及進行照明強度均勻化。cpc 12是”短的"， 思味者其等通常不會產生理想校準。 而且，CPC12是正方形的，各具有至少一正方形輸出端 16。輸入端14可是圓形的或正方形的。同時，cpc 12具類 似定向，，亦即，CPC 12之光軸基本上平行及輸出端16基本 上面對相同方向。 而且，CPC 12被配置在一2x2矩陣（二列及二行）使得各 CPC 12之輸出端16被配置鄰近至少一其他cpc 12之輸出端 16在圖1中，各正方形輸出端16具有二側分別與二其他 輸出端16之側接觸。 旦操作，各LED 1 8發射的光將藉由其相關cpC〗2充 當主光學元件（primary optics)使其塑形為一較窄波束。大 體而言，光被校準至大約±20-40度（亦即，其大約偏離光軸 至±20-40度）。由各CPC-LED組合12、18發射的光在離開 輸出端1 6之後將很快重疊，此係因cpc丨2之接近。 接下來，系統10進一步包含一放置在cpc 12前面之單一 非球面透鏡20(亦即，一具有非球形表面之透鏡p該透鏡 調適以進一步成形，較佳地校準，四CP(： 12之輸出，作為 次光學元件（secondary 〇pticsp為此，透鏡2〇應該設定大 小及放置使得其基本上接收所有的由四cpc_LED組合12、 18發射的光。因此，單透鏡2〇伺服所有cpc_LED組合12、 1 8。因此，系統1 〇可提供一具有高亮度之校準照明。 此外，透鏡20是一成像透鏡。特別地，透鏡2〇調適以成 130489.doc 200914767 像在、,遠昜中陣列之CPC 12之相鄰正方形輸出端16(亦 即2米遠）及圖2|會示在遠場中系統ι〇(來自透鏡之輸 出）之合成示例性照明窗口 22。^此，各CPC_LED組合 12 1 8構成&限24，共同形成一正方形之靈活照明視窗 22。為此’非球面透鏡18可被設計使得發源於相鄰輸出端 16之象限2 4幾乎完美彼此連接而沒有接縫。 照明窗22之均句性將足夠供—些應用，但是其可藉由在 CPC 12與錢20之間放置—可賴射體邮增加，例如， ”有角刀佈1 0-20角度之蘭波特（Lambertian)擴散元件 或-全息擴散元件（參見旧）。例如，擴散元件26可放置在 面對CPC 12之透鏡2G表面處，基本上涵蓋整個表面，如圖 1 ° 一擴散元件通常擴散或展開光。於此’擴散元件26有 助於使得亮度之任意變異（相互或内部）均句或平順，例 如，上述象限24之亮度。圖2中示例性照明視窗22具有擴 月文元件26其中較暗/較緊凑區域指示強度些微不同。 ； 本發明之光輸出系統比每個CPC具有數個LED之系統更 小巧（例如’ CPC長度可減半）。而且，與先前技術單cpc 透鏡組合相比，由於來自數個（四）光源之光被使用，故光 輸出增加。 ^本發明之光輸出系統之應用包含攝影機/照相機、視訊 電话及投影機之照明，物體之照明等（建築、藝術裝飾、 窗等）。 熟悉此項技術者應認識到本發明決不限於上文所描述的 較佳實施例。相反地，如上文概述及說明中所指示，隨附 130489.doc 200914767 專利申請範圍之範圍内許多修改及變體是有可能的。例 如，CPC可彼此些微遠離放置，仍具有適宜性能。同時， 替代CPC，其他光學部件可被使用。同時’擴散元件可配 置在CPC及透鏡之間不同位置，例如，剛好在CPC之輸出 端前側。或者’或作為補充，與圖1中擴散元件相比，一 類似擴散元件可位於透鏡之另一側。 【圖式簡單說明】 月’J揭參閱繪示本發明之目前較佳實施例之隨附圖式，詳 細說明本發明之此等及其它態樣。 圖1是根據本發明之一實施例之一光輸出系統之概略透 視圖。 圖2圖解圖丨之系統之一示例性照明視窗。 【主要元件符號說明】 10 12 14 16 18 20 22 24 26 光輸出糸統 複合拋物線形聚光器（CPC) 輸入端 輸出端 發光二極體（led) 透鏡 照明窗 象限 擴射體 .η- 130489.docOut of the aperture) 16. At the input 14 of each CPC 12, a light source unit comprising an LED 18 is provided to form a total of four LEDs 8 . As in the prior art, as far as its 130489.doc 200914767 itself, each CPC 12 is a non-imaging optical servo to calibrate the light emitted by the associated LED 18 and to homogenize the illumination intensity. Cpc 12 is "short", and the thinker typically does not produce an ideal calibration. Moreover, CPC 12 is square, each having at least one square output 16. The input 14 can be circular or square. The cpc 12 has a similar orientation, that is, the optical axes of the CPC 12 are substantially parallel and the output 16 is substantially facing the same direction. Moreover, the CPC 12 is configured in a 2x2 matrix (two columns and two rows) such that each CPC 12 The output 16 is disposed adjacent to the output 16 of at least one other cpc 12. In Figure 1, each square output 16 has two sides that are in contact with the sides of the other outputs 16 respectively. Upon operation, each LED 18 emits light. It will be shaped as a narrower beam by its associated cpC 2 as a primary optics. In general, the light is calibrated to approximately ±20-40 degrees (ie, it is approximately offset from the optical axis) ±20-40 degrees). The light emitted by each of the CPC-LED combinations 12, 18 will soon overlap after leaving the output terminal 16, which is due to the proximity of cpc 丨 2. Next, the system 10 further includes a a single aspherical lens 20 in front of the cpc 12 (ie, one Lens of non-spherical surface p The lens is adapted for further shaping, preferably calibrated, four CP (: 12 output, as a secondary optic (secondary 〇pticsp for this, lens 2 〇 should be sized and placed so that it substantially receives All of the light emitted by the four cpc_LED combinations 12, 18. Therefore, the single lens 2 〇 servos all of the cpc_LED combinations 12, 18. Therefore, the system 1 can provide a calibration illumination with high brightness. In addition, the lens 20 is an image. Lens. In particular, the lens 2 is adapted to be 130489.doc 200914767, and the adjacent square output 16 of the CPC 12 in the array (ie, 2 meters away) and FIG. 2| are shown in the far field. The system ι〇 (from the output of the lens) is combined with an exemplary illumination window 22. Here, each CPC_LED combination 12 1 8 constitutes a & limit 24, which together form a square flexible illumination window 22. For this purpose, the aspheric lens 18 can It is designed such that the quadrants 24 originating from the adjacent output terminals 16 are almost perfectly connected to each other without seams. The uniformity of the illumination window 22 will be sufficient for some applications, but it can be between the CPC 12 and the money 20 Placement— The slinger is increased, for example, "Lambertian diffusing element with a corner knife 10-20 angle or a holographic diffusing element (see old). For example, the diffusing element 26 can be placed facing the CPC 12 At the surface of the lens 2G, the entire surface is substantially covered, as shown in Figure 1 . A diffusing element typically diffuses or spreads light. This 'diffusion element 26 helps to make any variation (mutual or internal) of brightness uniform or smooth, for example, The brightness of the above quadrant 24. The exemplary illumination window 22 of Figure 2 has a diffuser element 26 wherein the darker/compact area indicates a slightly different intensity. The light output system of the present invention is smaller than a system with several LEDs per CPC (e.g., 'the length of the CPC can be halved). Moreover, the light output is increased since light from a plurality of (four) light sources is used as compared to prior art single cpc lens combinations. The application of the light output system of the present invention includes illumination of cameras/cameras, video phones and projectors, illumination of objects, etc. (architecture, art deco, windows, etc.). Those skilled in the art will recognize that the present invention is in no way limited to the preferred embodiments described above. On the contrary, many modifications and variations are possible within the scope of the appended claims. For example, CPCs can be placed away from each other and still have suitable performance. At the same time, instead of CPC, other optical components can be used. At the same time, the 'diffusion element can be arranged at different positions between the CPC and the lens, for example, just at the front side of the output end of the CPC. Alternatively or additionally, a similar diffusing element may be located on the other side of the lens as compared to the diffusing element of FIG. BRIEF DESCRIPTION OF THE DRAWINGS These and other aspects of the present invention are described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic perspective view of a light output system in accordance with one embodiment of the present invention. Figure 2 illustrates an exemplary illumination window of one of the systems of the drawings. [Main component symbol description] 10 12 14 16 18 20 22 24 26 Light output system compound parabolic concentrator (CPC) Input terminal output terminal light emitting diode (led) Lens illumination window quadrant expansion body. η- 130489 .doc