200900766 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種照明系統 一種改良剛性之模έ化多 發明係關於 【先前技術】多層堆叠式照明系統。 源蓋Τ的近期趨勢係用複數個較小光 的覆i度及/或照度來200900766 IX. INSTRUCTIONS OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to an illumination system. A method for improving the rigidity of a multi-layered invention relates to a [prior art] multi-layer stacked illumination system. The recent trend in source cover is based on the coverage and/or illumination of a plurality of smaller lights.
(進“螢光管)。由於發光二極體_)領域中== 擇丁的進展及未來發展，LED當前係此類小型光源之有利 選擇，然而在將來可能發現其他的替代品。 般而a ’對於照明系統（包含以LED為基礎之照明系 ^ )的肖品求係，其應能夠提供一經完善控制、經完善 ^義的均勾發光通量，而無非刻意地擴散及/或妨礙光。 詳言之，照明系統應能符合應用特定之需求，例如關於眩 光。在許多應財’眩光相_之需求在於發光通量應均勻 且未展現出於任何亮點，甚至當在某一傾斜角度上觀察照 明系統時。 對於促進生產一種包括複數個較小光源之照明系統，採 用模組化概念，其中每一模組（稱為照明模組）包括搭配一 支撐結構（例如，用於對光源之每一者提供電連接的PCB) 的若干較小光源以及經組態以導引來自該照明模組中該等 光源之每一者之光的若干光導。 然而，包括經配置相互鄰近之複數個照明模組之照明系 統的缺點在於，照明系統之剛性的惡化，且照明系統趨向 128904.doc 200900766 點處（介於照明模組之間的連接）彎曲。除照明系 1 充之相不利於美觀外，還可能導致照明系統局部故障， =:障及/或光學故障。電故障-般導致-個或多個 發屮雜：以發出所要光量’而光學故障可能導致照明系統 :出雜散光’因此未能符合對照明系統所設定的眩光需 此問題之解決方案揭示於歐洲專利第EP 1 650 729 A2號 二二案描述—種顯示器，其包括固持若干發光照明模組 支撐結構。該支I结構可用於A型顯示器應时，且提 供顯示器之剛性。每一發光照明模組包括如上述該等組件 他、'且件’即，—支撐基板、經配置於該支撐結構上之 2ED以及心導引來自照明模组中咖之光的若干光 導。 然而’當配置發光照明模組相互鄰近時，歸因於支撑结 構配置在照明模組之間而造成介於模組之間將有一小間 距办導，顯不器外觀崎形。因此’這樣的解決方案不適宜 於疋善定義的均勻發光通量是必要的大面積照明系統中。 此外使甩切結構將使得照m變得沉重及龐大。 【發明内容】 減二此：二種改良照明系統，並且詳言之’克服或至少 均勾發光通量剛性問靖，而無惡化整個照明系統之 =據本發明之特點’上述目的係藉由一種包括一多屬堆 體之光學系統包含一包括複數個鄰近的光學組件之第一 I28904.doc 200900766 層及一包括複數個鄰近的光學組件之第二層，該第一層及 該第二層經調適用以相互作肖，以提供一結合的光學效 應其中5亥等層被配置成彼此之關係為使得在該第一光學 層内之光學組件之間的至少—個介面非對齊於在該第二光 學層内之光學組件之間的所有介面。 一層内之至少一個介面非對齊於另一層内之介面的事實 將增加系統的結構強度。繼而提供基於模組化組建概念利 用較^模組化組件建構-大面積光學系統之能力。與利用 螢光管之通用照明系統的普通矩形結構相比，此類模組化 組建概念提供建立-不同形式及形狀的照明系統之能力。 每-層可僅包括二個組件'然而，每—層亦可包括複數 個鄰近的光學組件。舉例而言，+同層之組件可被配置成 一串(例如’一維光棒)或更廣的形式(例如，廣展幅的二維 泛光燈）。當然’如果愈多介面未對齊，則該結構強度將 愈強，且較佳地第一光學層内之光學叙件之間的複數個介 面未對齊於第二光學層内之光學組件之間的所有介面。 可克服先前技術之不利的剛性問題之方式係藉由以似 磚方式配置每-層之較小元件，且該等層被配置成彼此之 關係為使得一層之元件之間的介面未平行重疊（即，重合） 於另一鄰近層内之元件之間的介面。 當在一層中使用複數個組件時，基本上第一光學層内具 有第-；t向之所有介面可不對齊於第_光學層内具㈣= 定向之所有介面。除此之外，具有第二定向（典型地垂直 於第一定向）之介面亦可未對齊於具有此第二定向之介 128904.doc 200900766 面。 每一層中之組件可具有不同的尺寸、形式及形狀，諸如 多角度形式(如三角形元件、矩形元件、…件、六邊 形儿件等等）。層中之組件還可配置成交織的梳狀結構。 藉由在個別層中形成不同的尺寸及/或形狀之組件，與此 同時’考慮到非重合介面之概念，有可能更進一步改良光 予系、、先之剛ϋ。同時對於在兩個鄰近層内使用具有類似形 狀及形式的組件，及相^ £ 相對於另一層旋轉該層的元件也是有 可能的。 _優為因此將有可能根據最佳製造製程來製造不 同組件’ϋ非按照一固定的整體寬度、幅度或形狀。舉例 而言，在任意層内之組件可具有相同的或不同的尺寸，而 成為能夠填滿在一層内之起因於磚概念的空白空間(例 如’類似於當形成結構化磚牆時在邊緣處使用—半尺寸的 磚）。然而空白空間亦可^以,t、略或用適當的填充材料予 乂真滿炎匕外，不需要在整個層内使用相同類型組件，而 是有可能在一層中包含不同類型組件。 光學組件可以是任一種類，也可包含發光元件，以及用 :文I光之光子性質之組件。此類組件包含用以調整波長 刀佈角分佈、空間分佈、接收之光的偏振狀態等等之元 件。 根據本發明之實施例，光學系統被用作為—照明系統， 在此it況下，第一光學層是一包括複數個鄰近之發光元件 的發光層’及第二光學層是_包括複數個鄰近之光導元件 128904.doc 200900766 的光導層，每一光導層被經調適用以接收該等發光元件中 之至少一者所發出的光並且改變該發出的光之光學性質。 上述照明系統將獲得一改良的剛性，同時能夠發出具有 均勻發光通量的光。此外，由於根據本發明之照明系統無 須使用框架結構來達成高剛性，所以照明系統所發出的光 將具有一均勻的外觀。 該光導層可包含至少兩個子層，每一子層包括複數個鄰 近的光導元件，其中該等子層經配置成彼此之關係為使得 第子層内之光學組件之間的至少一個介面與該第二光 學層内之光學組件之間的至少一個介面沒有相互重合。該 等子層可（例如）包含一重定向層（L3)、一準直層及一擴散 層中之至少一者。 該發光層包括一基板層，該基板層包括複數個基板元 件，每一基板元件支撐至少一個光源。 在較佳實施例中’發光元件之每一者各包括一基板及用 於發光的至；—個光源。舉例而言，基板可由形成， 基板亦可係光導，，在此情況下，光源可配置於光導上。 大體上所有的發光元件彼此電連接。然而，熟練此項技 術者應明白，亦有可能提供對照明系統之每—發光元件之 個別控制。發光元件之控制可有利於提供室内之均勻照 月對於源自窗口的自然環境光使接近於窗口之部分的室 内比m離該窗口的部分室内變得更明$，對發光元件之個 別控制或可能以區段為基礎之控制可利於提供均勻的室内 照明。-可調整式照明系統可彌補上述差異。發光元件亦 128904.doc 10· 200900766 可相互熱連接，使得當發出光的時產生熱量遍及較大表 面。 即使有可能使用任一類型的精簡型光源，較佳地選定以 發光二極體（LED)為光源。除標準及高強度led外，當然 有可能使用不同類型LED，諸如〇LED、pLED或不同類型 之光源的組合。此外，每-發光元件各可包括複數個不同 顏色的光源。當使用不同顏色光源時，可能需要增加用於 控制照明系統的控制系統之複雜性，卩包含用於處理歸因 於溫度及老化而造成之不同顏色光源中的顏色偏移之構 件0 進-步包括-重定向箱層係有利的，該重定向箱層被配 置在光被導引發出側處的發光層前面，該重定向箱層包括 複數個重定向以件，丨中該重^向箱層配置係以相對於 該光導層方式予以定位，以使得介於重件之間的 至少-個介面與介於光導元件之間的至少一個介面未彼此 重合。該重定向箔層大體上係用於重定向基本上平行於光 導平面逸出光導之任何光至基本上垂直於該平面之方向 從剛性角度看，第三層的引入亦係有利的，原因係藉由 該第三層將進-步增強碑概念。介於光導之間的介面亦可 經配置以重合於介於重定向荡元件之間的介面，然而，此 非必要的。 為保護照明系統免受 包括一基本上透明覆 引發出側處的上述層 步 導 塵埃及/或污垢，照明系統可進— 蓋層，該透明覆蓋層被配置在光被 前面（即，在多層堆4體的頂部）。 128904.doc • 11 - 200900766 如同與上述提及之不同層，透明覆蓋層可係基於複數個元 件，然而，其較佳於使用基本上伸展到整個照明系統上 單個覆蓋層。 即使上述照明系統傳統光源（諸如照明器具）的有利替 代品，照明系統有利於用作為（舉例而言但不限於）在顯示 器單元中所包括之背光中的組件，該顯示器單元進—步$ 括顯示面板及用於個別地控制上述提及之光源的驅動器匕 致使照明系統發出所要亮度及顏色的光。熟練此項技術者 應明白，顯示面板有利於地用作為面（舉例而言但不限於） 用於電視應用及/或監視器應用的直觀式LCD(液晶顯示器） 或LCD投影機中的替代組件。 【實施方式】 下文將參考繪示本發明當前最佳實施例之附圖來詳細描 述本發明。然而，本發明可在許多不同的形式中體現，且 本發明不被視為僅限於本文所闡述之實施例；相反地，此 等實施例係為了徹底性及完整性而提供，並且對於熟練此 項技術者，實施例充分地涵蓋了本發明之範疇。整份文件 中相似之元件符號指代相關元件。 現請參考附圖，特別是圖丨，其繪示根據本發明之實施 例的多層堆疊式照明系統1 00之部份的側視圖。 第一層Ll(被配置於多層堆疊體之底部），包括經配置於 相互鄰近之基板元件101之形式的複數個發光元件丨〇2。在 每一基板元件ιοί之頂部上有配置一側發光二極體（led) 104,其經調適用以當被提供驅動電流時發光。驅動電流 128904.doc 200900766 係藉由電連接106、108予以提供。在本實施例中，電連接 1%、108被提供到所有鄰近發光元件1〇2甲使得所有發 光兀件102相互連接。然而，有可能實行一定址策略以能 夠個別控制每一 LED 104或一群組LED 1〇4。在本實施例 中，基板元件1〇1由多層式PCB所構成，並且電連接1〇6、 108被整合於每一基板元件ι〇1中。 第一光導層L2配置於第一層L1之頂部上。第二層以包 括不同於第一扣中之發光元件如的的複數個元件，例 如光導元件110。在本實施例中，每一光導元件丨1〇包含三 個條狀準直器U2及一個三重楔形光導114。條狀準直器 U2經調適用以接收㈣1〇4所發出的光，並且轉遞所發出 光到每一個三重楔形光導114中。以相對於基板元件ι〇ι方 式，光導元件110經配置成相互鄰近，但是經定位之方式 致使介於光導元件110之間的介面未重合於介於發光元件 102之間的介面。熟練此項技術者應明白，可使用任何數 目楔形（在本實施例中是三個），藉此有可能形成具有不同 尺寸之光導元件110。 就光能夠行進於光導之間意義上，鄰近定位的三重楔形 光導m係彼此光學連接 '然而，就光導係藉由具有折射 率大約相匹配於光導之折射率的透明材料（例如膠）所連接 意義上，光導不具有光學接觸。因此三重楔形光導ιΐ4之 間始終有空氣狹縫或空腔。光學接觸於光導的膠或任何其 他類似材料將導致光損失及非所要的離散光。替代方式 是，光導必須彼此鬆散地連接。 128904.doc 200900766 一照明系統100進-步包括配置於第二層L2之頂部上的第 三層L3。第三層L3(在本實施例中第三層L3是一重定向箔 層）包括複數個重定向笛元件116，用於重定向基本上平行 ;平面逸出一重楔形光導丨丨4之光往基本上垂直於照明系 統100之縱向平面之方向。 重定向箱元件116經定位以使得介於第三層L3中之重定 向治兀件116之間的介面與介於第一層L1中之基板元件1〇1 之間的；丨面彼此重合。在每一堆疊之層u至L3内之鄰近定 位之元件（即，分別係基板元件丨〇丨、光導元件1 1 〇及重定 向治7L件116)之間的介面之所描述位置提供了最佳介面分 佈從而提供一剛性似磚結構。然而，當然有可能配置介 面以使得料層之-者中的介面皆未重合於任何其他層内 之任何介面。只要在兩個鄰近堆疊層内之大多數介面之定 位未彼此重合，介面之精確放置可替代地取決於個別不同 層之不同元件之構造。 此外，在照明系統1〇〇之頂部上提供透明板118，用於提 供保濩免党灰塵及/或污垢的侵害。該透明板11 8較佳於以 覆盍在照明系統100之整個可視區域的單板形式。熟練此 項技術者應明白，當然有可能使用除上文提出之配置外的 不同結構，而未背離開本發明之範疇。舉例而言，有可能 僅使用藉由一透明保護板118所覆蓋的兩個不同層。 在操作期間，一旦LED 1〇4透過電連接1〇6、1〇8接收驅 動電流，LED 104開始發出光。自LED 1〇4發出的光照射 到條狀準直器112上，該條狀準直器導引光至楔形光導ιΐ4 128904.doc 200900766 之一楔上。傳遞到楔形光導114的光接著被耦合到重定向 箔元件116上，其將重定向自楔形光導114向外耦出之光， 致使光自照明系統100向外耦出往基本上垂直於照明系統 100之縱向平面之方向。 圖2說明一類似於圖i說明之照明系統1〇〇之多層式照明 系統2 0 0的透視圖。為了更能瞭解及說明之簡單起見，二 個不同層L1-L3的元件（例如’發光元件1〇2、光導元件11〇 及重定向箔元件116)被繪示為斷面組塊。然而，個別組塊 式兀件102、11 〇及11 6仍然包括如上述關於圖i所述之類似 組件（例如’發光元件102包括光源）。 為了進一步說明對於不同層之組塊式元件使用不同尺 寸、形式及形狀的可能性，第一層L丨繪示為包含正方形發 光元件102，而第二層L2包括光導元件11()，其覆蓋於照明 系統之總寬度而僅覆蓋總幅度之一部分。此外，第三層L3 包括以蜂巢圖案配置的重定向箔元件丨16。如圖1所示，該 照明系統200由一透明板11 8所覆蓋。 根據不同層L1-L3内的組塊式元件1〇2、11〇及Π6之尺寸 大小及放置的選擇，有可能提供一種照明系統2〇〇，其中 在不同層L1-L3内的不同組塊式元件1〇2、Π0及116之間的 大多數介面被配置為未彼此重合。上面所描述的不同組塊 式元件102、110及116之定位特別有利於提供具有改良剛 性的照明系統200。 熟練此項技術者應明白’本發明絕非僅限於上述的較佳 實施例。相反地，在附加請求項的範缚内，許多變更及變 128904.doc •15· 200900766 系可行的。舉例而言，有可能在每一基板部分上包含一 個以上光源。同時有可能包含諸如LED的不同顏色光源， 藉此使侍有可能發出複數種顏色及色溫的光。然而，當使 用不同顏色的LED時，彳能需要調適照明系統以包括用於 處置環境溫度及/或LED溫度相較於減決定正常溫度之差 、的構件’原因係溫度差異通常展現出顏色偏移。 艮卜刚文5兒明内容描述一種包括有限數目之不同層 曰到四層）的照明系統，然而，熟練此項技術者應 日月 可組合或分割不同的光學及/或機械功能，且本發 月之原理可組合任何數目之不同層加以運用。 〜 根據本發明，有可能基於模組化組建概念來提供 大，積照明系、统’該照明系統相較於先前技術之大型照明 有保持的剛性。。每—鬆散堆疊層的模組層部分 (例如’發光元件、&導元件、重定向箱元件等等）經定位 以使得在兩個鄰近堆疊層的元件間介面未彼此重合。 【圖式簡單說明】 、圖1是根據本發明之實施例之多層式照明系統的局部側 圖2是一類似於圖丨之多層 視圖。 式照明系統的照明系統簡化透 【主要元件符號說明】 100 101 照明系統 基板元件 發光元件 128904.doc -16- 102 200900766 104 側發光二極體（LED) 106 電連接 108 電連接 110 光導元件 112 條狀準直器 114 三重楔形光導 116 重定向箔元件 118 透明板 200 照明系統 LI 第一層 L2 第二光導層 L3 第三層/重定向箔層 128904.doc - 17-(Into the "fluorescent tube". LEDs are currently a good choice for such small light sources due to the progress and future development of == in the field of light-emitting diodes _), but other alternatives may be found in the future. a 'For the lighting system (including the LED-based lighting system ^), Xiaopin should be able to provide a well-controlled, well-defined, uniform luminous flux without any intentional diffusion and / or obstruction of light. In particular, the lighting system should be able to meet application-specific needs, such as glare. In many accounts, the demand for glare is that the luminous flux should be uniform and not present at any bright point, even at a certain angle of inclination. When observing the lighting system, for promoting the production of a lighting system comprising a plurality of smaller light sources, a modular concept is adopted, wherein each module (referred to as a lighting module) includes a supporting structure (for example, for a light source) Each provides a plurality of smaller light sources of electrically connected PCBs and a plurality of light guides configured to direct light from each of the light sources in the illumination module. A disadvantage of the lighting system of a plurality of lighting modules adjacent to each other is that the rigidity of the lighting system is deteriorated, and the lighting system tends to bend at the point of 128904.doc 200900766 (the connection between the lighting modules). The phase is not conducive to aesthetics, it may also cause partial failure of the lighting system, =: barrier and / or optical failure. Electrical failure - generally caused - one or more noisy: to emit the required amount of light ' and optical failure may lead to lighting system : A stray light that does not meet the glare set for the lighting system. A solution to this problem is disclosed in the European Patent No. EP 1 650 729 A2, the disclosure of which is incorporated herein by reference. The I structure can be used for the A-type display in time and provides the rigidity of the display. Each of the illuminating lighting modules includes the components, such as the above, and the supporting substrate, which is disposed on the supporting structure. The 2ED and the heart guide several light guides from the light of the lighting module. However, when the light-emitting lighting modules are arranged adjacent to each other, the support structure is assigned Placed between the lighting modules, there will be a small spacing between the modules, the appearance of the display is subtle. Therefore, such a solution is not suitable for the well-defined uniform luminous flux is necessary In the area lighting system. In addition, the chopped structure will make the m become heavy and bulky. [Summary of the invention] Subtract two: two improved lighting systems, and in detail, 'overcoming or at least the hook luminous flux rigidity Without deteriorating the entire illumination system = according to the features of the present invention, the above object is achieved by an optical system comprising a multi-genus stack comprising a first I28904.doc 200900766 layer comprising a plurality of adjacent optical components and a a second layer of a plurality of adjacent optical components, the first layer and the second layer being adapted to interact with each other to provide a combined optical effect, wherein the layers are configured to be in relationship with each other such that At least one interface between the optical components within the first optical layer is not aligned with all of the interfaces between the optical components within the second optical layer. The fact that at least one interface in one layer is not aligned with the interface in the other layer will increase the structural strength of the system. It then provides the ability to build a large-area optical system based on a modular approach to building a modular component. This modular construction concept provides the ability to create lighting systems of different forms and shapes compared to conventional rectangular structures that utilize a general illumination system for fluorescent tubes. Each layer may comprise only two components 'however, each layer may also include a plurality of adjacent optical components. For example, components of the +-same layer can be configured in a string (e.g., a one-dimensional light bar) or a wider form (e.g., a wide-spread two-dimensional floodlight). Of course, if more interfaces are not aligned, the strength of the structure will be stronger, and preferably the plurality of interfaces between the optical segments in the first optical layer are not aligned between the optical components in the second optical layer. All interfaces. A way to overcome the unfavorable rigidity problem of the prior art is by arranging the smaller elements of each layer in a brick-like manner, and the layers are configured to be in relationship with one another such that the interfaces between the elements of the layers are not parallel overlapped ( That is, coincident) an interface between elements within another adjacent layer. When a plurality of components are used in one layer, substantially all of the interfaces in the first optical layer having the -th; t-direction may not be aligned with all interfaces in the first optical layer having (4) = orientation. In addition, the interface having the second orientation (typically perpendicular to the first orientation) may also be misaligned with the second orientation 128904.doc 200900766. The components in each layer can have different sizes, forms, and shapes, such as multi-angle forms (e.g., triangular elements, rectangular elements, ..., hexagonal pieces, etc.). The components in the layer can also be configured as an interwoven comb structure. By forming components of different sizes and/or shapes in individual layers, at the same time, considering the concept of non-coincident interface, it is possible to further improve the optical system and the first. It is also possible to use components having similar shapes and forms in two adjacent layers, and elements that rotate the layer relative to the other layer. Preferably, it will be possible to manufacture different components according to the optimal manufacturing process, rather than a fixed overall width, amplitude or shape. For example, components within any layer may have the same or different dimensions, and become a blank space that can fill a layer due to the brick concept (eg, 'similar to when forming a structured brick wall at the edge) Use - half size bricks). However, the blank space can also be used to t, slightly or with a suitable filling material. It is not necessary to use the same type of components throughout the layer, but it is possible to include different types of components in one layer. The optical component can be of any kind, can also comprise a light-emitting element, and a component of the photon nature of the light. Such components include components for adjusting the angular distribution of the wavelength of the blade, the spatial distribution, the polarization state of the received light, and the like. According to an embodiment of the invention, an optical system is used as an illumination system, in which case the first optical layer is a light-emitting layer comprising a plurality of adjacent light-emitting elements and the second optical layer is _ comprising a plurality of adjacent The light guiding layer of the light guiding element 128904.doc 200900766, each light guiding layer is adapted to receive light emitted by at least one of the light emitting elements and to change the optical properties of the emitted light. The illumination system described above will achieve an improved stiffness while being capable of emitting light having a uniform luminous flux. Moreover, since the illumination system according to the present invention does not require the use of a frame structure to achieve high rigidity, the light emitted by the illumination system will have a uniform appearance. The light guiding layer can comprise at least two sub-layers, each sub-layer comprising a plurality of adjacent light guiding elements, wherein the sub-layers are configured to be in relationship with one another such that at least one interface between the optical components within the first sub-layer At least one interface between the optical components within the second optical layer does not coincide with each other. The sub-layers may, for example, comprise at least one of a redirecting layer (L3), a collimating layer, and a diffusing layer. The luminescent layer includes a substrate layer including a plurality of substrate elements, each substrate element supporting at least one light source. In a preferred embodiment, each of the illuminating elements comprises a substrate and a light source for illuminating. For example, the substrate can be formed, and the substrate can also be a light guide, in which case the light source can be disposed on the light guide. In general, all of the light-emitting elements are electrically connected to each other. However, those skilled in the art will appreciate that it is also possible to provide individual control of each of the illumination elements of the illumination system. The control of the illuminating element can be advantageous to provide a uniform illumination in the room. For the natural ambient light originating from the window, the interior of the window close to the window becomes brighter than the part of the window from the window, and the individual control of the illuminating element or Possible segment-based control can provide uniform indoor illumination. - An adjustable lighting system compensates for these differences. The light-emitting elements are also 128904.doc 10· 200900766 can be thermally connected to each other such that heat is generated over a larger surface when light is emitted. Even if it is possible to use either type of reduced light source, it is preferred to use a light emitting diode (LED) as the light source. In addition to standard and high intensity LEDs, it is of course possible to use different types of LEDs, such as 〇LEDs, pLEDs or combinations of different types of light sources. Further, each of the light-emitting elements may each include a plurality of light sources of different colors. When using different color light sources, it may be necessary to increase the complexity of the control system used to control the lighting system, including components for processing color shifts in different color light sources due to temperature and aging. Advantageously, the redirecting tank layer is disposed in front of the light-emitting layer at the light-extracting side, the redirecting tank layer comprising a plurality of redirecting members, the heavy-duty box The layer configuration is positioned relative to the light guiding layer such that at least one interface between the weights and at least one interface between the light guiding elements do not coincide with each other. The redirecting foil layer is generally used to redirect any light that escapes the lightguide substantially parallel to the plane of the lightguide to a direction substantially perpendicular to the plane. The introduction of the third layer is also advantageous, for the reason With this third layer, the concept of the monument will be enhanced. The interface between the light guides can also be configured to coincide with the interface between the redirecting elements, however, this is not necessary. In order to protect the illumination system from dust and/or dirt including the above-mentioned layer at the substantially transparent cover, the illumination system may be provided with a cover layer that is disposed in front of the light (ie, in multiple layers) The top of the pile 4 body). 128904.doc • 11 - 200900766 As with the different layers mentioned above, the transparent cover layer can be based on a plurality of elements, however, it is preferred to use a single cover layer that extends substantially across the entire illumination system. Even though an advantageous alternative to conventional illumination sources such as lighting fixtures of the above illumination system, the illumination system facilitates use as, for example, but not limited to, components in a backlight included in a display unit that is further The display panel and the driver for individually controlling the light source mentioned above cause the illumination system to emit light of a desired brightness and color. Those skilled in the art will appreciate that display panels are advantageously used as a surface (for example, without limitation) in an intuitive LCD (liquid crystal display) or LCD projector for television applications and/or monitor applications. . [Embodiment] The present invention will be described in detail below with reference to the accompanying drawings which illustrate the preferred embodiments of the invention. However, the invention may be embodied in many different forms and the invention is not intended to be limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and The embodiments fully embrace the scope of the invention. Similar component symbols in the entire document refer to related components. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings, and in particular to the drawings, FIG. The first layer L1 (configured at the bottom of the multilayer stack) includes a plurality of light-emitting elements 丨〇2 disposed in the form of substrate elements 101 adjacent to each other. On top of each substrate element ιοί is a side-emitting diode (LED) 104 that is adapted to illuminate when a drive current is supplied. The drive current 128904.doc 200900766 is provided by electrical connections 106,108. In the present embodiment, electrical connections 1%, 108 are provided to all of the adjacent light-emitting elements 1A2 such that all of the light-emitting elements 102 are connected to each other. However, it is possible to implement an address strategy to be able to individually control each LED 104 or a group of LEDs 1〇4. In the present embodiment, the substrate element 101 is composed of a multilayer PCB, and electrical connections 1 , 6 , 108 are integrated in each of the substrate elements ι 1 . The first light guiding layer L2 is disposed on the top of the first layer L1. The second layer is comprised of a plurality of elements, such as light-emitting elements 110, that are different from the light-emitting elements of the first buckle. In the present embodiment, each of the light guiding elements 丨1〇 includes three strip collimators U2 and one triple wedge light guide 114. The strip collimator U2 is adapted to receive the light emitted by (4) 1〇4 and to deliver the emitted light to each of the triple wedge shaped light guides 114. The light guiding elements 110 are configured to be adjacent to each other with respect to the substrate element ι, but are positioned such that the interface between the light guiding elements 110 does not coincide with the interface between the light emitting elements 102. Those skilled in the art will appreciate that any number of wedges (three in this embodiment) can be used, thereby making it possible to form light guiding elements 110 having different sizes. In the sense that light can travel between light guides, adjacently positioned triple wedge-shaped light guides m are optically coupled to one another. However, the light guide is connected by a transparent material (eg, glue) having a refractive index that is approximately matched to the refractive index of the light guide. In the sense, the light guide does not have optical contact. Therefore there is always an air slit or cavity between the triple wedge-shaped light guides ΐ4. Glues that are in optical contact with the light guide or any other similar material will result in loss of light and unwanted discrete light. Alternatively, the light guides must be loosely connected to each other. 128904.doc 200900766 A lighting system 100 further includes a third layer L3 disposed on top of the second layer L2. The third layer L3 (in the present embodiment, the third layer L3 is a redirecting foil layer) includes a plurality of redirecting elements 116 for reversing substantially parallel; the plane escaping a light of a wedge-shaped light guide 往4 to the basic The direction is perpendicular to the longitudinal plane of the illumination system 100. The redirecting box member 116 is positioned such that the interface between the redirecting members 116 in the third layer L3 and the substrate member 1〇1 in the first layer L1 overlap each other. The described position of the interface between adjacently positioned elements (i.e., substrate element 丨〇丨, light guide element 1 1 〇 and redirecting 7L piece 116, respectively) within each stacked layer u to L3 provides the most The good interface is distributed to provide a rigid brick-like structure. However, it is of course possible to configure the interface such that the interface in the layer does not overlap any of the interfaces in any other layer. As long as the positioning of most of the interfaces within two adjacent stacked layers does not coincide with each other, the precise placement of the interface may alternatively depend on the construction of the different elements of the individual different layers. In addition, a transparent plate 118 is provided on top of the lighting system 1 for providing protection against party dust and/or dirt. The transparent plate 11 8 is preferably in the form of a veneer that covers the entire viewable area of the illumination system 100. It will be apparent to those skilled in the art that it is of course possible to use different structures than those set forth above without departing from the scope of the invention. For example, it is possible to use only two different layers covered by a transparent protective plate 118. During operation, once the LEDs 1〇4 receive the drive current through the electrical connections 1〇6, 1〇8, the LEDs 104 begin to emit light. Light from the LEDs 1 〇 4 illuminates the strip collimator 112, which directs the light onto one of the wedge-shaped light guides ι 4 128904.doc 200900766. Light transmitted to the wedge light guide 114 is then coupled to the redirecting foil element 116, which redirects light that is outwardly coupled out of the wedge light guide 114, causing the light to be outcoupled from the illumination system 100 to be substantially perpendicular to the illumination system. The direction of the longitudinal plane of 100. Figure 2 illustrates a perspective view of a multi-layer illumination system 200 similar to the illumination system illustrated in Figure i. For the sake of simplicity and clarity of description, the elements of the two different layers L1-L3 (e.g., 'light-emitting element 〇2, light-guide element 11' and redirecting foil element 116) are depicted as cross-section blocks. However, the individual block elements 102, 11 and 11 still include similar components as described above with respect to Figure i (e.g., 'lighting element 102 includes a light source). To further illustrate the possibility of using different sizes, forms and shapes for the tiled elements of different layers, the first layer L丨 is shown to comprise a square light-emitting element 102 and the second layer L2 comprises a light-guide element 11(), which covers The total width of the illumination system covers only a portion of the total amplitude. Further, the third layer L3 includes a redirecting foil member 丨16 configured in a honeycomb pattern. As shown in Figure 1, the illumination system 200 is covered by a transparent plate 118. Depending on the size and placement of the block elements 1〇2, 11〇 and Π6 in the different layers L1-L3, it is possible to provide an illumination system 2〇〇 with different blocks in different layers L1-L3 Most of the interfaces between the elements 〇2, Π0 and 116 are configured to not coincide with each other. The positioning of the different block elements 102, 110 and 116 described above is particularly advantageous for providing an illumination system 200 with improved rigidity. Those skilled in the art will appreciate that the present invention is by no means limited to the preferred embodiments described above. Conversely, many variations and changes are possible within the scope of the appended claim. 128904.doc •15· 200900766 is feasible. For example, it is possible to include more than one light source on each substrate portion. At the same time, it is possible to include different color light sources such as LEDs, thereby allowing light to emit a plurality of colors and color temperatures. However, when LEDs of different colors are used, the illumination system needs to be adapted to include components for treating the ambient temperature and/or the temperature of the LED compared to the difference between the normal temperatures. The cause temperature difference usually exhibits a color shift. shift.艮 刚 文 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 The principle can be applied in combination with any number of different layers. ~ According to the present invention, it is possible to provide a large, integrated lighting system based on the modular construction concept that the lighting system maintains rigidity compared to prior art large lighting. . The module layer portions of each of the loosely stacked layers (e.g., 'lighting elements, & guiding elements, redirecting box elements, etc.) are positioned such that the inter-element interfaces between two adjacent stacked layers do not coincide with one another. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial side view of a multi-layered illumination system in accordance with an embodiment of the present invention. FIG. 2 is a multi-layer view similar to the figure. Illumination system illuminating system simplification [Main component symbol description] 100 101 Lighting system substrate component illuminating component 128904.doc -16- 102 200900766 104 Side illuminating diode (LED) 106 Electrical connection 108 Electrical connection 110 Photoconductive element 112 Collimator 114 Triple Wedge Light Guide 116 Redirect Foil Element 118 Transparent Plate 200 Illumination System LI First Layer L2 Second Light Guide Layer L3 Third Layer / Redirected Foil Layer 128904.doc - 17-