200930948 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種發光裝置封裝，特定言之係用於一光 輸出系統中，其包括一經調適以傳播或混合由聯合光源生 成的光且接著出耗合來自該裝置的光以提供照明的光學系 * 統。本發明亦係關於一種對應的光輸出方法。 【先前技術】 包括此一光學系統的光輸出系統之一實例係在文件 ❹ W02006/034831 中揭示。特定言之，W02006/034831 揭示 一薄型照明系統，其中發射不同色彩光之複數個光源將該 等光向側面’亦即大致上平行於光出耦合之平面，經由分 佈在該光導構件上方的凹陷耦合至一光導構件中。假如一 特殊結構化的表面圖案’與平行於該光導構件之光出耦合 之平面的光入耦合結合’則依其申述允許獲取源自該複數 個光源之不同色彩光之良好的色彩混合。接著該光在其位 於該光導構件中一極長段時間之後僅被耦合輸出使得源自 ® 不同光源之光係經顯著混合。即，當一光線擊打該結構化 表面圖案時’其傳播向量之垂直分量將經少許改變，因此 一光線之入射角將隨著該結構化表面上的每次擊打而逐漸 增加，直至滿足一全内反射之條件，且該光係被耦合輸 出。該照明系統之一代表性的應用係非發射性顯示器。 然而，W02006/034831中的該照明系統之一個問題係該 出輛合光之角分佈可為大型（寬）。這係由於具有刻面角之 結構化的表面圖案，使得射束寬係在出耦合上改變。結 133397.doc 200930948 果，W02006/034831中的該照明系統係不適用於如辦公照 明之普通照明應用，因為通常需要將該角分佈或遮光角限 制至一某一值以避免強光。為了實現辦公照明之需求，通 常需要2x45。FWHM(半峰全寬）之準直角。為了實現該等 強光需求，用於高於65。之角度（亦即該遮光角）的亮度應低 於 1000 cd/m2。 【發明内容】 ❹ 因此本發明之一目的係至少部分地克服此問題並提供一 種特定言之可實現用於如辦公照明之普通照明的需要之改 良的光輸出系統，以及一種舉例而言可用於此一光輸出系 統中的改良的發光裝置封裝。 此等及其他目的將可見於以下描述，其等係藉由分別根 據技術方案1、8及11之-發光裝置封裝、—光輸出系統及 一光輸出方法予以實現。 根據本發明之一態提供一肖具有一集成準直反射器 的發光裝置封裝，纟中-發光元件係、關於該準直反射器經 配置用於生成準直光。 "準直光"在本發明之上下文中應被理解為限制由一光源 發射的光之角分佈。該發光元件亦可為或不形成該封裝之 邻刀。該準直反射器亦較佳為界定一空腔或同類物，其中 該發光元件可被接收。 由於該準直功能係固有地併入該封裝中，因此該封裝外 部不需要額外的準直構件，舉例而言其可簡化—使用本雜 樣之封裝的系統之構造。亦不需要對準任何另外的準^ 133397.doc 200930948 件，該對準通常存在問題且若不正確操作，可降級總光輸 出性能。 在本發明之一實施例中，該封裝之該準直反射器包括若 干反射壁，其等係經組態為關於該發光裝置封裝之基準平 面成大於65度但不大於大約80度的角（65。<壁角<8〇。），較 佳為大約75度。這導致該準直反射器且因此導致該封裝之 -小型叹叶，但仍可保證一所需遮光，例如65度或更小。或 者，舉例而·τ，該準直反射器可具有一錐形或cpc(複合抛 〇 物面聚光器）形。—光束”遮光角"通常可被定義為從一光源 之強度之主軸線所量測的角，在此角度不可見該光源或至 少在強度上係被明顯減小。 此外，在一實施例中，該封裝之該準直反射器包括一導 電第一部分及一與該第一部分絕緣的導電第二部分，該等 部分一起界定一其中配置有該發光元件之準直空腔且其 中該等發光元件具有一連接至該等部分之一者的第一底接 ❹觸件及一連接至該等部分之另一者的第二底接觸件。因 此，每個部分係有益地作為該反射器之部分及作為一用於 該發光元件之電連接裝置，實現一具有少數零件的不複雜 且易於裝配的封裝。該發光元件較佳為一覆式晶片，其中 每個電接觸件係直接連接至該反射器之該兩個部分之一 者。此接觸可藉由焊接或產生電接觸的任何其他方式予以 完成。此外，該兩個部分較佳地係由具有導電性及反射性 兩者的金屬予以製成，不需要應用任何鏡面塗層或同類物 以實現該反射屬性（然而其係一種選擇）。此外，舉例而 133397.doc 200930948 &，該兩個部分可藉由—非導電膠以一絕緣方式予以接 合0 在另一實施例中，該準直反射器進一步包括一導熱第三 部分，其係熱連接至該發光元件。舉例而言，該導熱第三 部分可被配置於該兩個導電部分間，並允許該發光元件Z •良好的熱處理。 此外，在一實施例中，該準直反射器之該第一部分之外 區域係經調適以電接觸一諸如一印刷電路板（PCB)的外部 〇 實體，且該準直反射器之該第二部分之一外部區域係經調 適以電接觸一諸如PCB的外部實體。此處"外區域”係關於 大體上面向遠離該準直空腔的部分，諸如在該封裝之外側 或底部。由於第一及第二部分為導電，且彼此為電絕緣， 因此其等可直接接觸或以各種方式連接至一PCB或同類 物’使得該封裝極具靈活性並易於安裝。舉例而言，每個 部分之底部可連接至一板，提供用於一頂發射發光裝置封 裝在一垂直於該板平面之主方向發射光。另一方面，一 封裝可無需明顯修改而改為被安裝為一側發射封裝，在一 平行於該板平面之主方向發射光，其係藉由安裝該封裝之 •一側以曝露至該板的第一及第二部分。 上述該發光元件較佳為一發光二極體（led)晶片，且該 發光裝置封裝（因此）係一 LED封裝。應注意多於一個LED 晶片可被配置於該準直反射器（空腔）中，且可使用其他適 當的發光元件。此外’該（等）發光元件可被整合至該發光 裝置封裝中。 133397.doc 200930948 根據本發明之另一態樣，提供一光輸出系統，其包括： 至少一根據上述描述的發光裝置封裝，及一光學系統，其 包括-光導m反射性—合結構’其經調適以選擇 性地耦合從該光導外的該（等）發光裝置封裝入耦合至該光 導的光，其中該（等）反射性出耦合結構係經配置使得當該 光束係自該光導被出耦合時，保持藉由該（等）發光裝置封 裝生成並入耦合至該光導的光束之遮光角。 換言之，該光學系統係使角守恆，此處意為射出該光導 之光的角分佈基本上係與藉由該（等）封裝生成的光之角度 相同，即使該主排出方向可垂直該主進入方向。較佳地， 該光學系統之所有反射性出耦合結構以及任何其他反射性 結構係使角守恆。因此，根據此態樣，該光輸出系統之一 總遮光角基本上係由藉由該（等）發光裝置封裝生成的光之 遮光角予以確定，因此只要該（等）封裝之該遮光角實現關 於角分佈用於辦公照明應用的要求，則整個光輸出系統亦 自動地實現此等要求。這應與评〇2006/034831相反其中 該光導之該特殊結構化表面圖案不保持該角，而是如上論 及略微改變此角。此外，在此態樣中，來自該（等）封裝之 光首先係經準直且接著被傳播出，而例如在 WO2006/03483 1中該光首先係經傳播出而接著可經準直（藉 由放置在該光出麵合側之前方的一或兩個準直膜）。前一 發明解決方案允許—更小型的裝置，亦即該等發光裝置封 裝中的小型準直儀而非如在後者先前技術解決方案中用於 該（傳播及出耦合）光學系統之一或更多較大的準直儀。 133397.doc 200930948 射或保存該光束遮光角’舉例而言，該至少一反BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a light emitting device package, in particular for use in a light output system, which includes an adaptation to propagate or mix light generated by a combined light source and then An optical system that consumes light from the device to provide illumination. The invention also relates to a corresponding light output method. [Prior Art] An example of a light output system including such an optical system is disclosed in the document 0 W02006/034831. In particular, WO2006/034831 discloses a thin illumination system in which a plurality of light sources emitting different color lights direct the light toward the side, ie substantially parallel to the plane of light out coupling, via a depression distributed over the light guiding member. Coupled into a light guiding member. It is possible to obtain good color mixing of different color lights originating from the plurality of light sources, provided that a specially structured surface pattern' is coupled with light in a plane parallel to the light outcoupling of the light guiding member. The light is then only coupled out after a long period of time in the light guiding member such that the light from the different sources is significantly mixed. That is, when a light strikes the structured surface pattern, the vertical component of its propagation vector will change slightly, so the angle of incidence of a ray will gradually increase with each hit on the structured surface until it is satisfied. A condition of total internal reflection, and the light system is coupled out. One representative application of this illumination system is a non-emissive display. However, one problem with this illumination system in WO2006/034831 is that the angular distribution of the combined illumination can be large (wide). This is due to the structured surface pattern with a facet angle, which causes the beam width to change over the coupling. 133 397.doc 200930948, the illumination system of WO2006/034831 is not suitable for general lighting applications such as office lighting, as it is often desirable to limit the angular distribution or shading angle to a certain value to avoid glare. In order to meet the needs of office lighting, 2x45 is usually required. The collimation angle of FWHM (full width at half maximum). In order to achieve these strong light requirements, it is used above 65. The angle (i.e., the shading angle) should be less than 1000 cd/m2. SUMMARY OF THE INVENTION It is therefore an object of the present invention to at least partially overcome this problem and to provide an improved light output system that can be implemented to meet the needs of general illumination such as office lighting, and an example that can be used for An improved illuminator package in such a light output system. These and other objects will be apparent from the following description, which are achieved by the illumination device package, the light output system and a light output method according to the technical solutions 1, 8, and 11, respectively. According to one aspect of the invention, a light emitting device package having an integrated collimating reflector is provided, the central light emitting element being configured to generate collimated light with respect to the collimating reflector. "collimated light" should be understood in the context of the present invention to limit the angular distribution of light emitted by a source. The light emitting element may or may not form a neighboring knife of the package. The collimating reflector also preferably defines a cavity or the like wherein the illuminating element can be received. Since the collimation function is inherently incorporated into the package, no additional collimating members are required outside the package, for example, it simplifies the construction of the system using the package of the present invention. There is also no need to align any additional 133397.doc 200930948, which is often problematic and can degrade the total light output performance if not properly operated. In an embodiment of the invention, the collimating reflector of the package includes a plurality of reflective walls configured to be at an angle greater than 65 degrees but no greater than approximately 80 degrees with respect to a reference plane of the illuminating device package ( 65. <wall angle < 8 〇.), preferably about 75 degrees. This results in the collimating reflector and thus the small slap of the package, but still guarantees a desired shading, for example 65 degrees or less. Alternatively, for example, τ, the collimating reflector may have a tapered or cpc (composite parabolic concentrator) shape. The beam "shading angle" can generally be defined as the angle measured from the main axis of the intensity of a light source at which the source is not visible or at least substantially reduced in intensity. Further, in an embodiment The collimating reflector of the package includes a conductive first portion and a conductive second portion insulated from the first portion, the portions together defining a collimating cavity in which the illuminating element is disposed and wherein the illuminating The component has a first bottom contact that is coupled to one of the portions and a second bottom contact that is coupled to the other of the portions. Thus, each portion is beneficially used as the reflector In part and as an electrical connection means for the light-emitting element, an uncomplicated and easy-to-assemble package having a few parts is realized. The light-emitting element is preferably a covered wafer, wherein each electrical contact is directly connected to the One of the two portions of the reflector. This contact can be accomplished by soldering or any other means of making electrical contact. Moreover, the two portions are preferably electrically and reflective. The metal of both is made without the need to apply any specular coating or the like to achieve this reflective property (although it is an option). In addition, for example, 133397.doc 200930948 &, the two parts can be used by - The non-conductive adhesive is bonded in an insulating manner. In another embodiment, the collimating reflector further includes a thermally conductive third portion that is thermally coupled to the light emitting element. For example, the thermally conductive third portion can be Disposed between the two conductive portions and allowing the light-emitting element Z to be well heat treated. Further, in an embodiment, the outer portion of the first portion of the collimating reflector is adapted to electrically contact a print such as a print An external germanium entity of the circuit board (PCB), and an outer region of the second portion of the collimating reflector is adapted to electrically contact an external entity such as a PCB. Here the "outer region" A portion away from the collimating cavity, such as on the outside or bottom of the package. Since the first and second portions are electrically conductive and electrically insulated from each other, they can be directly contacted or connected to a PCB or the like in various ways' making the package extremely flexible and easy to install. For example, the bottom of each portion can be connected to a panel that provides for a top emitting illumination device to be encapsulated in a main direction perpendicular to the plane of the panel to emit light. Alternatively, a package can be mounted as a side-emitting package without significant modification, emitting light in a direction parallel to the plane of the board, by attaching one side of the package to the board. The first and second parts. Preferably, the light emitting device is a light emitting diode (LED) chip, and the light emitting device package (and thus) is an LED package. It should be noted that more than one LED wafer can be placed in the collimating reflector (cavity) and other suitable illuminating elements can be used. Furthermore, the (e) light-emitting element can be integrated into the light-emitting device package. 133397.doc 200930948 According to another aspect of the present invention, a light output system is provided, comprising: at least one light emitting device package according to the above description, and an optical system comprising - a light guide m reflective structure - Adapting to selectively couple light coupled to the light guide from the illuminating device outside the light guide, wherein the (etc.) reflective outcoupling structure is configured such that when the beam is coupled out from the light guide The light-shielding angle of the light beam incorporated into the light guide is maintained by the (equal) light-emitting device package. In other words, the optical system maintains the angle, which means that the angular distribution of the light exiting the light guide is substantially the same as the angle of the light generated by the (etc.) package, even though the main discharge direction can be perpendicular to the main entry. direction. Preferably, all of the reflective outcoupling structures of the optical system, as well as any other reflective structures, are angularly conserved. Therefore, according to this aspect, the total light-shielding angle of one of the light output systems is basically determined by the light-shielding angle of the light generated by the (equal) light-emitting device package, so that the light-shielding angle of the (etc.) package is achieved. Regarding the angular distribution requirements for office lighting applications, the entire light output system also automatically fulfills these requirements. This should be contrary to the evaluation of 2006/034831, in which the particular structured surface pattern of the light guide does not maintain the angle, but instead slightly changes the angle as discussed above. Furthermore, in this aspect, the light from the (etc.) package is first collimated and then propagated out, and for example in WO 2006/03483 1 the light is first propagated and then collimated (borrowed) One or two collimating films placed in front of the side of the light exit face). The former inventive solution allows for smaller devices, ie small collimators in such illuminating device packages, rather than for one of the (propagating and outcoupling) optical systems in the latter prior art solutions or Larger collimator. 133397.doc 200930948 Shooting or preserving the beam shading angle', for example, the at least one counter
對稱光走^構可經沿著該光束之一主方向，例如沿著一 贫/之该對稱平面或軸線予以導向。在此情況下，當 Ζ "束係藉由該結構反射時，該光束之方向不改變，且該 、束之光線相對該主方向之所有角度保持在由該遮光角界 :相同的錐形中。即，此一結構僅改變垂直於該主光束 ° s方向刀量之正負號。若該光束之橫截面不是旋轉 “爯例如該遮光角係不同用於垂直於一橢圓光束方向之 兩個主方向’則該等反射結構應亦與該光束之對稱平面 (例如該兩個主方向）平行。 不如則"k中提出予以導向的反射性出耦合結構可改為 經配置使得當撞擊該結構時該光束係以—基本上垂直於該 光束之主方向或與其相反的方向被反射。適當的反射結構 包含垂直於該光束方向的反射結構，其與該光束方向相 反，及一與該光束方向成45度的結構，其在一正交於該原 光束方向之方向上生成光束。後者尤其有益於耦合該光學 系統外之光，其具有被保持的遮光角。如果該結構對不同 射線給予不同方向（例如，如W02006/034831中的該特殊結 構化的表面圖案）’這將引起光束加寬。 由於如此描述的該光輸出系統，可實現一基於LED的薄 型照明器，其具有一 2X65度或甚至更小的總遮光角，使得 其適用於普通照明，特定言之係需要此一遮光之辦公照 明。 根據本發明之又另一態樣，提供一種輸出光之方法，其 133397.doc 200930948 包括以下步驟：藉由至少一具有一集成準直反射器之發光 裝置封裝生成準直光，一發光元件係關於該反射器被配 置，及傳播藉由該（等）發光裝置封裝生成的光並藉由一角 寸恆光學系統出耦合來自該裝置之該傳播光。此態樣顯示 與先前論述的本發明之態樣類似的優點。較佳地，該角守 恆光學系統包括一光導及至少一反射性出耦合結構，其經 調適以選擇性地耦合自該光導外的該（等）發光裝置封裝入 耦合至該光導的光，其中該（等）反射性出耦合結構係經配 置使知·當該光束係自該光導被出耦合時，保持藉由該（等） 發光裝置封裝生成並入耦合至該光導的光束之遮光角。 應注意本發明係關於該等技術方案中敍述的特點之所有 可能的組合。 【實施方式】 現將參考顯示本發明之較佳實施例之附圖更詳細地描述 本發明之此等及其他態樣。 在以下描述中，如”頂部”、”底部"之術語主要係意指定 義其出現在該等圖式中的標的物及/或具有一相對意義， 且在實際使用中不一定反映位置及方向。 圖la-lb繪示一根據本發明之一實施例的光輸出系統 1 〇，特定言之係一照明器（亦即’一（完整）照明單元）。該 照明器係適用於普通照明’特別係諸如辦公照明之室内照 明，因為其特徵在於一滿足此等照明應用之抗強光要求的 有限輸出光束角。 该照明器10包括一光導12，較佳為一由一或更多介電材 133397.doc -12- 200930948 料片製成的薄型光導板。適當的介電材料包含不同的透明 材料，例如各種玻璃、聚曱基丙烯酸甲酯（pMMA)等。 該照明器10進一步包括複數個光源14a-14f，其等係位於 該光導12中的對應的入耦合凹陷16&_16£中。該等凹陷16a_ 16f可部分延伸穿過該光導12，或可形成為貫穿孔。該等 凹陷16較佳為具有垂直於該光導n之平面的刻面。該等光 源14係經調適以在許多大體上平行於該光導12之平面的主 方向上發射準直光。在圖i中的該照明器1〇中，每個光源 ® 14包括兩個單向發光單元’其等經配置使得作為在兩個相 對主方向（亦即沿著一平行於該光導之平面的軸線）上生成 準直光的侧發射器。舉例而言，每個光源14可包括兩個諸 如發光一極體（LED)之頂部發射器，其等傾斜大約9〇度且 基本上配置為背對背。替代組態包含但不限於每凹陷一個 準直單向LED及每凹陷四個準直單向1^〇,四個LED係經 配置以便在四個平行於該光導之平面的互相垂直的方向上 ⑩（亦即沿著平行於該光導之兩個正交軸線）生成光束。替代 LED，諸如半導體雷射二極體之其他準直發光裝置可用作 光源。相對於"準直"光之表達方式，該等LED封裴較佳為 •經冑適以在關於主發#方向或該封裝之光學#線之大約 2x65度（65。的遮光角）内生成—光束。以下將參考圖 進一步解釋用於本發明之代表性的LED封裝。 該照明器ίο進一步包括相鄰於每個入耦合凹陷16a_i6f之 -關聯出耦合部分18a-18f。此等出耦合部分18之每者依次 包括四個區域20a-d，其等被配置為大體上的正方形或矩 133397.doc 200930948 形象限(相對於該光導12之平面），其中關聯凹陷i6係在一 中心位置。此外，該等區域20具有以相對於位於中心的該 凹陷16成45、135、225及315度的方南M施μ 以 及叼万向延伸的凹槽形出耦 合結構22。該等出耦合結構22較佳為鏡面凹槽其本質上 具有一具有大約90。之開口角的乂形橫戴面，舉例而言，其 等經配置或形成在該光導12之底面中，形成相對於：光導 i2之平面傾斜大約45度的鏡面反射表面。在圖“η中的 該照明器ίο中，該等光源14a_14f之該等LED係以此等方式 被導向使得每個光源之兩個主發光方向本f上與該關聯出 耦合部分18a-18f之該等區域2〇a-d之兩者中的該等出耦合 結構22之方向相符。亦即，對於該代表性的光源i4e，一 主發光方向符合並平行於延伸45度的該區域2〇&之該等出 耦合結構22之方向而進行，且另一相對的主發光方向符合 延伸225度的該區域20c之該等出耦合結構22之方向。 現將參考該代表性的光源i 4e解釋該照明器丨〇之操作基 礎。當該光源14e之該兩個LED生成光時，相對準直光束 (例如2x65度光錐形）24a-24b係自該光源14e被發射並經由 该等垂直刻面在該凹陷16e上入耦合。如圖ib中所繪示， 對於該光束24a，該入耦合光束24a將遇見非出耦合該光的 平行凹槽22a，或遇見可出耦合該光的垂直導向的凹槽 22b。因此’所繪示的該光束24a主要係經由在該照明器i 〇 中標示為26的該等區域予以出耗合。 該照明器10之該光導12滿足根據本發明之一角守恆、光 傳播及出耦合光學系統的要求：第一，一入耦合光束將在 133397.doc • 14· 200930948 其遇到垂直導向的可出耦人咕止 35耦《該九束的出耦合結構22b之前 在該光導12中沿著平行出叙人社甚 > κ耦合結構22a行進一特定距離， 因此實現光傳播功能。舉例而士 平1 j而5，該先傳播功能可有利於 色彩混合（不同色彩光源）或有利摇 u 4有利於k供一較不強烈的光輸 出。第二，該出轉合係藉由該等結構22予以提供。主要平 行於s亥光導12之平面經入輕合的 $ W口的β等九束大體上係被阻止 ❿ 藉由全内反射（TIR)在該光導空氣介面排出該光㈣。缺 而，當撞擊經配置為基本上垂直於該光束路徑的該等“度 出搞合結構22時’該等光束係被反射或改向使得其等可克 服TIR條件並射出該光導，由此提供本f上垂直方向垂 直）於該光導平面之光輸出。第三，關於角守恆方面，一 入耦合準直光束可遇見一如結構22a之出耦合結構，其係 沿著該光束之主方向經導向，亦即，平行於該主光束方 向。此一結構22a將在反射上將光束之一部分”折疊，，至該 光束之另一部分上（亦即一左部分係藉由一垂直結構予以 折叠成為-右部分，或一上部分係藉由一水平結構予以折 疊成為一下部分），因此該光束之光線相對於該主方向之 所有角保持在該原錐形内。一入耦合準直光束亦可遇見一 如結構22b之出耦合結構，其係被導向為相對於該光束之 主方向成45度（側視圖）。此處，該光束之所有射線之方向 係以相同方式改變，由此自該光束之該主方向的所有背離 仍然守惶。因此，在該照明器中該射束寬係在出輕合守 怪。同樣’垂直於該光束的任何結構，舉例而言，該光導 之該等外邊緣（側視圖）將利用保持的角傳播簡單地反向該 I33397.doc 15 200930948 光束方向。為此目的，該等外邊緣亦可被製為反射性。由 於該等出Μ合結構22亦較佳為鏡面，亦即其特徵在於鏡似 反射而無漫射，因此該等出耦合結構22在反射或改向上存 有極少或沒有任何由於擴散引起的光束角之改變。 〜之，該等LED光源14之該遮光角（例如a度）係被保 持，由此上述該照明器10可具有一限制在例如2χΑ度中的 光束傳播，使得其適用於普通照明，特定言之係辦公照 明。然而應注意當光經由一垂直凹陷刻面進入該光導12 時，該角度係根據斯涅耳（SneU)定律改變，但當射線離開 S亥光導12時其將與原角相反。舉例而言，對於一光導媒介 n=l_5，該等65度遮光角將在該媒介中成為大約37度。 應注意為了實現一最佳或所需的照明模式，所顯示的該 照明器10之許多變體為可能。舉例而言，多種光源可具有 不同方向。舉例而言’一些可如圖1中經導向為45及225 度，而其他係被配置為135及3 15度。此外，在一單向光源 中，該兩個LED可經配置以便在平行於該光導之平面之垂 直方向中生成光’例如在45及13 5度。此外，一照明器中 的該等單向光源可經配置以相同方向或不同方向入耦合至 該光導中。此外，上述設置之多種組合為可能，舉例而言， 具有一些四光束光源及一些單向或雙向光源之照明器。 應進一步注意以上描述的該照明器丨〇大體上係以一簡單 及示意性的方式予以繪示。特定言之，一實際照明器通常 具有大量光源。然而，本文揭示的該等實施例應足以使得 熟習此項技術者能完成並使用本發明。舉例而言，一代表 133397.doc -16· 200930948 性的實際照明器可包括1 〇〇個lED光源，其等係被配置成 一在一方向上具有4 cm且在正交方向上為12·5 cm的節距 之10X 1 0陣列，形成一 40 cmX 125 cm之照明器。舉例而 έ ’每個LED可生成1〇〇 im(流明）’產生一 1〇 klm (2〇 klm/m2)之總輸出。 圖2a-2b繪示一發光裝置封裝100之變體，舉例而言，其 可用於一如上述照明器10之光輸出系統中。 該封裝100基本上包括一杯形準直反射器1〇4，其中放置 有至少一發光二極體（LED)晶片1 〇2。特定言之，該準直反 射器104包括兩個相對主部分1〇6a、i〇6b，每者形狀為半 杯形。每個部分l〇6a、1〇61)具有至少一傾斜或成角的反射 性内壁108及一底部11〇。該等反射性内壁ι〇8與該等底部 no—起界定一具有一頂部排出孔徑U4的準直空腔112， 且在該準直空腔112中，該LED晶片1〇2係放置於該等底部 上在圖2 a中’该排出孔徑114以及一藉由該兩個底部 110界定的區域為正方形，但其等可具有包含矩形及環形 的其他形狀（舉例而言’後者係關於一 CPC形或錐形反射器 104(未顯示。 该兩個部分l〇6a、1〇6b係藉由一非導電連接116 ’舉例 而言一非導電膠，將該兩個部分106a、106b在一經由該反 射器104之本質上中途切割處予以接合在一起而成電絕 緣。此外，該兩個部分106a、1〇6b較佳地係由金屬製成， 舉例而&，鋁或銀（不過銀需要一保護塗層）。利用此等金 屬部分106a、1〇讣可提供兩個目的：第一該等内壁 133397.doc 200930948 108(及底部110)可為反射性而不必經金屬化（例如利用一金 屬塗布）或同類物；且第二，該等部分106a、106b自身可 成為導電且因此用作用於該led晶片102之電連接裝置。 對於後者，該LED晶片1〇2較佳為一覆晶式LED晶片。，，覆 曰曰大體上係關於一半導體晶片（其為完全顛倒）上的電接觸 點及一關聯外部電路的對應點間無需有線接合的直接接 觸，如由熟習此項技術者所瞭解。據此，該LED晶片i 〇2 在其底側上具有至少兩個電接觸件或接觸點丨丨8，其中每 ® 個接觸件118係直接連接至一個部分1〇6a、106b。藉由電 連接120a、120b予以繪示的此接觸可藉由焊接或其他方式 予以完成而形成電連接。 該發光裝置封裝100為有益，因為其可在底部且亦在兩 側之任一側外部接觸而無需明顯修改。在前者情況下，舉 例而言，每個傳導部分10以及1〇61)之下側可分別在區域 121a及121b(見圖2a)接觸一印刷電路板，在此情況下該 LED封裝可經安裝為並用作一頂部發射器。在後者情況 下，舉例而言，每個傳導部分1〇以及1〇讣之一側可分別在 區域123a及123b或123c及l23d(見圖2a)接觸一印刷電路板 (未顯示），在此情況下該led封裝100可經安裝為並用作一 側發射器。因此，同一封裝可從至少三側予以電接觸。 在該LED封裝1〇〇之操作上，電信號係被提供至該反射 器104用於使該LED晶片1〇2通電，因此該LED晶片1〇2發射 光，此光係經由該發射器1〇4準直朝向該封裝1〇〇之一光學 軸線122。特定言之，未經沿著該光學軸線丨22予以導向的 133397.doc -18· 200930948 發射光，舉例而言自該等側或邊緣或該LED晶片i〇2發射 的光線係藉由該等成角壁108予以反射或改向回向該光學 轴線122，如在圖2a中藉由射線124繪示。 藉由適當地設定該空腔Π2之大小並選擇該等壁1〇8關於 一基準平面126之一傾斜角（表示為a)，可實現該封裝1〇〇之 一所需遮光角（表示為b)，因此大體上無射線行進在該虛錐 128外部°對於一具有平面反射器（例如反射器104)之錐形 空氣準直儀’傾斜角與遮光角間的關係可表示為：傾斜角 =45度+(l/2)x遮光角。較佳地’該傾斜角&係大約75度，允 許一封裝100具有一有限高度’但仍具有一足夠的遮光角 b，即大約60度。一大約65度的遮光角（引起2x65度的錐形 128之全"遮光"）同樣地需要一大約77 5度的傾斜角。一具 有一錐形空腔的準直反射器亦可同樣自具有一大約75度的 傾斜角獲益。一 CPC形反射器可為更小，但仍達到相同的 遮光角’因為此一反射器之傾斜度沿著該準直儀改變。 如表明，多於一個LED晶片可被配置在該準直反射器 104中。此外’在該LED晶片上方可塗上磷用於色彩轉 換。磷可被印刷在該LED晶片上，或舉例而言，一陶究轉 換板可被配置於該LED晶片之前方。此外，藉由將該LED 晶片110中心定位在一對稱準直空腔112中，可提供一對稱 的輸出光束。 圖2c繪示一 LED封裝之另一變體。圖2c中的該封裝係類 似於圖2a-2b之封裝，且因此相似元件係被給予相同代 號。圖2a-2b之該封裝與圖2c之該封裝間的差異係圖2c之該 133397.doc 19 200930948 封裝_進—步包含-配置於該兩個部分驗、祕間的 第三部分13〇。該第三部分130係由一導熱材料製成舉例 而言’鋁、銀或銅’若其除了熱傳導之外亦形成該反射準 直儀之部分’職可藉由-反射料以塗布。若其僅用於 熱傳導，則僅可使用銅《如在先前變體中，該等部分 1〇6a、1061>及130係藉由非導電連接116而電絕緣。一熱傳 導熱連接132係被進一步提供於該LED晶片1〇2與該第三部 分130間’舉例而t，其係藉由金屬焊接。該熱傳導部分The symmetrical light path can be directed along a main direction of the beam, for example along a plane or axis of symmetry. In this case, when the Ζ " beam is reflected by the structure, the direction of the beam does not change, and the angle of the beam of light relative to the main direction is maintained by the shading corner: the same cone . That is, this structure only changes the sign of the amount of the tool perpendicular to the direction of the main beam. If the cross section of the beam is not a rotation "爯, for example, the shading angle is different for two principal directions perpendicular to the direction of an elliptical beam", the reflection structures should also be symmetrical with the beam (eg, the two main directions) Parallel. In contrast, the reflective outcoupling structure proposed in "k may instead be configured such that when striking the structure the beam is reflected - substantially perpendicular to the main direction of the beam or opposite thereto A suitable reflective structure includes a reflective structure perpendicular to the direction of the beam, opposite the direction of the beam, and a structure 45 degrees from the direction of the beam that produces a beam in a direction orthogonal to the direction of the original beam. The latter is particularly advantageous for coupling light outside the optical system with a shaded angle that is maintained. If the structure imparts different directions to different rays (eg, such a specially structured surface pattern as in WO2006/034831), this will cause The beam is widened. Due to the light output system thus described, an LED-based thin illuminator can be realized which has a total of 2 x 65 degrees or even less The light angle is such that it is suitable for general illumination, and in particular, this shading office illumination is required. According to still another aspect of the present invention, a method of outputting light is provided, the 133397.doc 200930948 comprising the following steps: At least one illuminating device package having an integrated collimating reflector generates collimated light, a illuminating element is disposed about the reflector, and propagates light generated by the illuminating device package and is stabilized by a corner optical The system outcouples the propagating light from the device. This aspect shows advantages similar to those of the previously discussed aspects of the invention. Preferably, the angular conserving optical system includes a light guide and at least one reflective outcoupling structure. Adapting to the light coupled to the light guide selectively coupled to the light guide from outside the light guide, wherein the (etc.) reflective outcoupling structure is configured to know when the light beam is from the light guide When outcoupled, the light-shielding angle of the light beam incorporated into the light guide is maintained by the (equal) light-emitting device package. It should be noted that the present invention relates to such techniques. The present invention is described in more detail with reference to the drawings showing preferred embodiments of the invention. In the following description, The terms "top" and "bottom" are used primarily to mean that they are defined in the drawings and/or have a relative meaning, and do not necessarily reflect the position and orientation in actual use. Figure la-lb illustrates a light output system 1 〇, in particular, a illuminator (i.e., 'a (complete) lighting unit), in accordance with an embodiment of the present invention. The illuminator is suitable for general illumination, especially for indoor lighting such as office lighting, as it is characterized by a limited output beam angle that meets the glare requirements of such lighting applications. The illuminator 10 includes a light guide 12, preferably a thin light guide plate made of one or more dielectric members 133397.doc -12-200930948. Suitable dielectric materials include different transparent materials such as various glasses, polymethyl methacrylate (pMMA), and the like. The illuminator 10 further includes a plurality of light sources 14a-14f that are located in corresponding in-coupling recesses 16&16 in the light guide 12. The recesses 16a-16f may extend partially through the light guide 12 or may be formed as through holes. The depressions 16 are preferably facets having a plane perpendicular to the light guide n. The light sources 14 are adapted to emit collimated light in a plurality of principal directions substantially parallel to the plane of the light guide 12. In the illuminator 1 in Fig. i, each light source® 14 comprises two unidirectional illumination units 'which are arranged such that they are in two opposite main directions (i.e. along a plane parallel to the light guide) A side emitter that produces collimated light on the axis. For example, each light source 14 can include two top emitters, such as light emitting diodes (LEDs), that are tilted about 9 degrees and are configured substantially back to back. An alternative configuration includes, but is not limited to, one collimated unidirectional LED per recess and four collimated unidirectional ridges per recess, the four LEDs being configured to be in a mutually perpendicular direction parallel to the plane of the light guide 10 (i.e., along two orthogonal axes parallel to the light guide) generates a beam of light. Instead of LEDs, other collimated illumination devices such as semiconductor laser diodes can be used as the light source. Relative to the "collimation" expression of light, the LED package is preferably adapted to be about 2x65 degrees (65% of the angle of shading) in the direction of the main hair # or the optical # of the package. Internal generation - beam. A representative LED package for use in the present invention will be further explained below with reference to the drawings. The illuminator ίο further includes an associated coupling portion 18a-18f adjacent to each of the in-coupling recesses 16a-i6f. Each of the outcoupling portions 18 in turn includes four regions 20a-d that are configured to be substantially square or moment 133397.doc 200930948 image limit (relative to the plane of the light guide 12), wherein the associated recess i6 is In a central location. In addition, the regions 20 have a groove-shaped coupling structure 22 that is 45, 135, 225, and 315 degrees with respect to the centrally located recess 16 and a universally extending groove. The outcoupling structures 22 are preferably mirrored recesses having essentially one having about 90. The meandering cross-sectional surface of the opening angle, for example, is configured or formed in the bottom surface of the light guide 12 to form a specularly reflective surface that is inclined at about 45 degrees with respect to the plane of the light guide i2. In the illuminator ί of the figure "n", the LEDs of the light sources 14a-14f are oriented in such a manner that the two main illumination directions of each source are associated with the associated coupling portions 18a-18f. The directions of the outcoupling structures 22 in the two regions 2 〇ad are coincident. That is, for the representative light source i4e, a main illuminating direction conforms to and parallel to the region extending 25 degrees & The direction of the out-coupling structure 22 is performed, and the other relative main light-emitting direction conforms to the direction of the out-coupling structure 22 of the region 20c extending 225 degrees. This will be explained with reference to the representative light source i 4e The operational basis of the illuminator 。. When the two LEDs of the light source 14e generate light, a relatively collimated beam (e.g., 2x65 degree cone) 24a-24b is emitted from the source 14e and passes through the vertical facets Coupling is applied to the recess 16e. As illustrated in Figure ib, for the beam 24a, the in-coupling beam 24a will encounter a parallel groove 22a that is not coupled to the light, or a vertical guide that can couple the light out. Groove 22b. Therefore, the light beam 24a is depicted as the main The consumables are eliminated via the regions indicated as 26 in the illuminator i 。. The light guide 12 of the illuminator 10 satisfies the requirements of an angular conservation, light propagation and outcoupling optical system according to the present invention: An incoming beam will be at 133397.doc • 14· 200930948. It encounters a vertically-oriented decoupling person 35 coupling. The nine-beam out-coupling structure 22b is parallel to the narrator in the light guide 12 > The κ coupling structure 22a travels a certain distance, thus realizing the light propagation function. For example, Shi Ping 1 j and 5, the first propagation function can facilitate color mixing (different color light sources) or favorable shaking u 4 is beneficial for k The second light is output by the structure 22. The nine beams, which are mainly parallel to the plane of the s-light guide 12, are passed into the light-weight $W port, etc. Preventing ❿ from exiting the light through the total air reflection (TIR) interface (4). In the absence of the beam, when the impact is configured to be substantially perpendicular to the beam path, the beams are Is reflected or redirected to make it TIR condition and emits the light guide, thereby providing a vertical direction perpendicular present f) the light output of the light guiding plane. Third, with respect to angular conservation, an in-coupling collimated beam can be seen as an out-coupling structure of structure 22a that is directed along the main direction of the beam, i.e., parallel to the main beam direction. This structure 22a will "fold" a portion of the beam on the reflection to another portion of the beam (i.e., a left portion is folded into a right portion by a vertical structure, or an upper portion is used by a The horizontal structure is folded into a lower portion), so that the light rays of the beam remain in the original cone with respect to all the corners of the main direction. The in-coupling collimated beam can also meet the coupling structure of the structure 22b. It is oriented at 45 degrees (side view) with respect to the main direction of the beam. Here, the direction of all rays of the beam is changed in the same manner, whereby all deviations from the main direction of the beam are still guarded. Thus, in the illuminator the beam is wide and singular. Also 'perpendicular to any structure of the beam, for example, the outer edges (side views) of the light guide will propagate using the maintained angle Simply reverse the I33397.doc 15 200930948 beam direction. For this purpose, the outer edges can also be made reflective. Since the outfit structure 22 is also preferably mirrored, that is, it is characterized by a mirror Reflexive and non-diffusing, so that the out-coupling structure 22 has little or no change in beam angle due to diffusion in the reflection or change direction. The shading angle of the LED light source 14 (for example, a degree) The system is maintained, whereby the illuminator 10 described above can have a beam propagation limited to, for example, 2 degrees, making it suitable for general illumination, in particular office lighting. However, it should be noted that when the light passes through a vertical depression facet When entering the light guide 12, the angle is changed according to the SneU law, but it will be opposite to the original angle when the radiation leaves the S-light guide 12. For example, for a light guide medium n=l_5, the 65 The degree of shading will be about 37 degrees in the medium. It should be noted that many variants of the illuminator 10 are shown to achieve an optimal or desired illumination mode. For example, multiple sources may have different Directions. For example, 'some may be oriented at 45 and 225 degrees as in Figure 1, while others are configured at 135 and 3 15 degrees. Additionally, in a unidirectional source, the two LEDs may be configured to Parallel to the light guide Light is generated in the vertical direction of the plane, for example at 45 and 13 degrees. In addition, the unidirectional light sources in an illuminator can be configured to be coupled into the light guide in the same direction or in different directions. Combinations are possible, for example, illuminators with some four-beam sources and some unidirectional or bidirectional sources. It should be further noted that the illuminators described above are generally illustrated in a simple and schematic manner. In particular, an actual illuminator typically has a large number of light sources. However, the embodiments disclosed herein are sufficient to enable those skilled in the art to make and use the invention. For example, one represents 133397.doc -16. 200930948 The actual illuminator can include 1 l lED source, which is configured as a 10X 1 0 array with a pitch of 4 cm in one direction and a length of 12·5 cm in the orthogonal direction to form a 40 cmX. 125 cm illuminator. For example, ’ 'Each LED can generate 1 〇〇 im (lumen)' to produce a total output of 1 〇 klm (2〇 klm/m2). 2a-2b illustrate a variation of a light emitting device package 100, which may be used, for example, in a light output system of the illuminator 10 described above. The package 100 basically comprises a cup-shaped collimating reflector 1〇4 in which at least one light-emitting diode (LED) wafer 1 〇2 is placed. Specifically, the collimating reflector 104 includes two opposing main portions 1〇6a, i〇6b, each of which is in the shape of a half cup. Each of the sections 16a, 1〇61) has at least one inclined or angled reflective inner wall 108 and a bottom 11〇. The reflective inner walls ι 8 and the bottom portions define a collimating cavity 112 having a top discharge aperture U4, and in the collimating cavity 112, the LED chip 1 〇 2 is placed thereon In the bottom of FIG. 2 a, the discharge aperture 114 and a region defined by the two bottom portions 110 are square, but they may have other shapes including a rectangle and a ring (for example, the latter is related to a CPC). Shape or tapered reflector 104 (not shown. The two portions 10a, 1〇6b are a non-conductive glue by way of a non-conductive connection 116', the two portions 106a, 106b are in one pass The reflectors 104 are essentially electrically insulated by being joined together at a midway cut. Further, the two portions 106a, 1〇6b are preferably made of metal, for example & aluminum or silver (although silver A protective coating is required. The use of such metal portions 106a, 1 can provide two purposes: the first such inner walls 133397.doc 200930948 108 (and bottom portion 110) can be reflective without metallization (eg, utilizing a metal coating) or the like; and second, the portions 10 6a, 106b itself can be electrically conductive and thus serve as an electrical connection for the LED wafer 102. For the latter, the LED chip 1 is preferably a flip-chip LED wafer. There is no need for direct contact between the electrical contacts on the semiconductor wafer (which is completely reversed) and the corresponding points of an associated external circuit, as is known to those skilled in the art. Accordingly, the LED chip i 〇 2 is in its There are at least two electrical contacts or contact points 8 on the bottom side, wherein each of the contacts 118 is directly connected to a portion 1 6a, 106b. This contact can be illustrated by electrical connections 120a, 120b. Electrical connections are made by soldering or other means. The illuminating device package 100 is advantageous because it can be externally contacted at the bottom and also on either side of the sides without significant modification. In the former case, for example The lower side of each of the conductive portions 10 and 1 〇 61) can contact a printed circuit board at regions 121a and 121b (see Fig. 2a), respectively, in which case the LED package can be mounted and used as a top emitter. In the latter In some cases, for example, each of the conductive portions 1〇 and 1〇讣 may be in contact with a printed circuit board (not shown) in the regions 123a and 123b or 123c and 1223d (see FIG. 2a), in which case The LED package 100 can be mounted and used as a side emitter. Therefore, the same package can be electrically contacted from at least three sides. In the operation of the LED package, an electrical signal is supplied to the reflector 104. The LED chip 1 〇 2 is energized, so that the LED chip 1 发射 2 emits light, which is collimated via the emitter 1 〇 4 toward one of the optical axes 122 of the package 1 . In particular, 133397.doc -18.200930948, which is not directed along the optical axis 丨22, emits light, for example, from the sides or edges or the LED chip i〇2. The angled wall 108 is reflected or redirected back toward the optical axis 122, as depicted by ray 124 in Figure 2a. By appropriately setting the size of the cavity Π 2 and selecting the inclination angle (denoted as a) of one of the walls 1 〇 8 with respect to a reference plane 126, the desired shading angle of one of the packages 1 can be realized (indicated as b), thus substantially no ray travels outside of the virtual cone 128. The relationship between the tilt angle and the shading angle of a conical air collimator having a planar reflector (e.g., reflector 104) can be expressed as: tilt angle = 45 degrees + (l / 2) x shading angle. Preferably, the tilt angle & is about 75 degrees, allowing a package 100 to have a finite height 'but still having a sufficient shading angle b, i.e., about 60 degrees. A shading angle of about 65 degrees (causing a full cone of 2x65 degrees "shading") also requires a tilt angle of about 77 degrees. A collimating reflector having a conical cavity can also benefit from having an angle of inclination of about 75 degrees. A CPC-shaped reflector can be smaller, but still achieve the same shading angle' because the slope of this reflector changes along the collimator. As indicated, more than one LED wafer can be disposed in the collimating reflector 104. In addition, phosphorus can be applied over the LED wafer for color conversion. Phosphorus can be printed on the LED wafer or, for example, a ceramic conversion panel can be placed in front of the LED wafer. Moreover, by centering the LED wafer 110 in a symmetric collimating cavity 112, a symmetrical output beam can be provided. Figure 2c illustrates another variation of an LED package. The package in Figure 2c is similar to the package of Figures 2a-2b, and thus similar components are given the same reference numerals. The difference between the package of Figures 2a-2b and the package of Figure 2c is as shown in Figure 2c. 133397.doc 19 200930948 Package_Step-Including - The third part 13〇 disposed between the two parts. The third portion 130 is made of a thermally conductive material, for example, 'aluminum, silver or copper', if it forms part of the reflective collimator in addition to thermal conduction, it can be coated by a reflective material. If it is only used for heat conduction, only copper may be used. As in the previous variant, the portions 1〇6a, 1061> and 130 are electrically insulated by the non-conductive connection 116. A heat transfer thermally conductive connection 132 is further provided between the LED chip 1 2 and the third portion 130 by way of example, which is soldered by metal. The heat conduction portion
130及該熱連接132用以將操作期間產生的熱量引導離開該 LED晶片1 02。舉例而言，該熱量係被傳輸開至一較大散 熱器（未顯示）。操作期間將熱量自該LED晶片移除可促進 色彩穩定並提尚該晶片之使用壽命，如熟習此項技術者所 瞭解。 圖3a-3b中繪示合併在圖la_lb之該照明器1〇之該光導以 中的該LED封裝100。離開該LED晶片1〇2之光係藉由該反 射器104準直成一特定角a。當光經由該凹陷16之一垂直刻 面進入該光導12時，該角度係根據斯涅*(SneU)定律改變 (舉例而言，媒介係自空氣改變成為玻璃），但當射線離開 s亥光導12時其將與該原角相反。一代表性的射線28a(圖3&) 係藉由該水平光導"頂板”中的TIR予以反射且接著在該光 導"地板"中的結構22b上穿過，且一代表性的射線28e係藉 由一平行垂直結構22a(圖3b)予以反射，用於進一步的傳輸 及傳播該光導12。代表性的射線28b、28d係藉由區域 26(見圖lb)中的45度出耦合結構22b予以反射且由此原因改 133397.doc -20- 200930948 變的方向程度如此多使得其等克服TIR並射出該光導12。 如最佳可見於圖3a中的射線28b，其主方向係藉由該45度 出耦合結構22b從水平改變為垂直， ^ 且且緊接者離開該光導 12’至該主垂直方向之角八係等於至該主水平方向之原角 A。此處可見該等結構22係相對於出耦合選擇，意味著並 非每個結構22出麵合每個光束或射線μ。 、 應注意關於該等圖2a-2c顯示及討論的該等發光裝置封 裝可無需該等角守恆光學系統而分離使用，或與一些其他 〇 &光學系統組合使用。舉例而言，在該等封裝為一照明器 提供過多準直光之情況下，其等可與一經調適以將角傳播 提高至一所需值的光學系統（用於混合及出耦合）一起使 用。除了一 LED晶片之外的發光元件亦可用於該封裝中。 該光輸出系統亦可由除了關於圖la_lb顯示及討論的特定 光導總成之外的角守恆光學系統予以具體化。舉例而言’ 設想一具有在該光導平面上以一錯列模式配置的光源的光 藝導，所有光源面向同一方向且在相對方向上具有一出耦合 刻面且具有反射性侧壁。一代表性的反射出耦合結構亦可 具有一本質上等於該光導之厚度的高度。 熟習此項技術者瞭解本發明決不受限於以上描述的該等 較佳實施例。正相反，許多修改及變更可在附屬請求項之 範圍内。 【圖式簡單說明】 圖1 a-1 b係一根據本發明之一實施例之照明器的示意性 的透視圖。 133397.doc •21 - 200930948 圖2a係一用於圖u_lbi該照明 趨褲认-立" <發光裒置封裝之- 變體的不意性的橫截面侧視圖。 圖2b係圖2a之該封裝之示意性的部分分解透視圖。 圖2c係一用於圖la_lb之該照明器的發光裝置封裝之另 一變體的示意性的橫截面側視圖。 圖3a係合併在圖1a-lb之該照明器之一光導中的圖2a_2b 之該封裝的示意性的側視圖。 圖3b係合併在圖1a-lb之該照明器之一光導中的圖2a_2b 〇 之該封裝的示意性的俯視圖。 【主要元件符號說明】 10 光輸出系統 12 光導 14 光源 14a-14f 光源 16 凹陷 16a-16f 入耦合凹陷 18a-18f 出耦合部分 20a-20d 區域 22 出耦合結構 22a 平行凹槽 22b 垂直導向的凹槽 24a 相對準直光束 26 區域 2 8 a- 2 8 c 射線 133397.doc -22- 200930948130 and the thermal connection 132 are used to direct heat generated during operation away from the LED wafer 102. For example, the heat is transferred to a larger heat sink (not shown). Removal of heat from the LED wafer during operation promotes color stabilization and enhances the useful life of the wafer, as will be appreciated by those skilled in the art. The LED package 100 incorporated in the light guide of the illuminator 1b of Figure la_lb is illustrated in Figures 3a-3b. The light leaving the LED chip 1 is collimated by the reflector 104 to a specific angle a. When light enters the light guide 12 through a vertical facet of the recess 16, the angle changes according to SneU's law (for example, the medium changes from air to glass), but when the ray leaves the s-light guide At 12 o'clock it will be opposite to the original angle. A representative ray 28a (Fig. 3 &) is reflected by the TIR in the horizontal light guide "top plate" and then passed over the structure 22b in the light guide"floor", and a representative ray 28e is reflected by a parallel vertical structure 22a (Fig. 3b) for further transmission and propagation of the light guide 12. Representative rays 28b, 28d are coupled by 45 degrees in region 26 (see Figure lb). The structure 22b is reflected and the reason for this change is 133397.doc -20-200930948. The degree of change is so large that it overcomes the TIR and emits the light guide 12. As best seen in the ray 28b in Fig. 3a, the main direction is borrowed. From the 45 degree outcoupling structure 22b, changing from horizontal to vertical, ^ and the immediate departure from the light guide 12' to the main vertical direction is eight degrees equal to the original angle A to the main horizontal direction. The structure 22 is selected relative to the outcoupling, meaning that not every structure 22 faces each beam or ray μ. It should be noted that the illuminator packages shown and discussed with respect to Figures 2a-2c may not require the equiangulation. Separate use of the conservation optical system, or with some Other 〇 & optical systems are used in combination. For example, where the packages provide excessive collimated light for an illuminator, they can be combined with an optical system that is adapted to increase angular propagation to a desired value ( Used for mixing and outcoupling. Light-emitting elements other than an LED chip can also be used in the package. The light output system can also be angularly conserved optical except for the specific light guide assembly shown and discussed with respect to FIG. The system is embodied. For example, a luminaire having a light source arranged in a staggered pattern on the plane of the light guide is assumed, all of the light sources face in the same direction and have a coupling facet in the opposite direction and are reflective. A representative reflective coupling structure may also have a height substantially equal to the thickness of the light guide. It will be apparent to those skilled in the art that the present invention is in no way limited to the preferred embodiments described above. Many modifications and variations are possible within the scope of the appended claims. [FIG. 1 a-1 b is an illustration of a luminaire in accordance with an embodiment of the present invention. 133397.doc •21 - 200930948 Figure 2a is a cross-sectional side view of a variant of the illuminating pan-pliers of the illuminating device. 2b is a schematic partially exploded perspective view of the package of Fig. 2a. Fig. 2c is a schematic cross-sectional side view of another variation of the illuminator package for the illuminator of Fig. la_lb. Figure 2a-2b is a schematic side view of the package of Figures 2a-2b in the light guide of the illuminator of Figures 1a-lb. Figure 3b is the package of Figure 2a_2b incorporated in one of the light guides of the illuminator of Figures 1a-lb Schematic top view. [Main component symbol description] 10 Light output system 12 Light guide 14 Light source 14a-14f Light source 16 Recess 16a-16f In-coupling recess 18a-18f Out-coupling portion 20a-20d Region 22 Out-coupling structure 22a Parallel groove 22b Vertically-oriented groove 24a phase aligned straight beam 26 area 2 8 a- 2 8 c ray 133397.doc -22- 200930948
100 發光裝置封裝 102 發光二極體（LED)晶片 104 準直反射器 106a 主部分 106b 主部分 108 反射性内壁 110 底部 112 準直空腔 114 頂部排出孔徑 116 非導電連接 118 接觸件 120a 電連接 120b 電連接 121a 區域 121b 區域 122 光學轴線 123a-123d 區域 124 射線 126 基準平面 128 虛錐 130 第三部分 a 傾斜角 b 遮光角 A 原角 133397.doc -23-100 illuminator package 102 light emitting diode (LED) wafer 104 collimating reflector 106a main portion 106b main portion 108 reflective inner wall 110 bottom 112 collimating cavity 114 top discharge aperture 116 non-conductive connection 118 contact 120a electrical connection 120b Electrical connection 121a area 121b area 122 optical axis 123a-123d area 124 ray 126 reference plane 128 virtual cone 130 third part a tilt angle b shading angle A original angle 133397.doc -23-