TW200905275A - Collimation device - Google Patents

Abstract

A device for collimation of light having an initial averaged direction of propagation, comprises a collimation section (120), capable of collimating the light in a collimation direction perpendicular to said averaged direction of propagation, a splitter section (130), capable of splitting the light in N pieces in a direction parallel to the collimation direction, and a rotator section (140) capable of rotating the collimation direction of each of the N pieces around the initial averaged direction of propagation.

Description

200905275 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種用於光的準直之設備，且特定言之是 關於一種不受一投影集光率（projected etendue)限制的光的 準直之設備。 【先前技術】 在未來幾年内’發光二極體（LEDs)被預計為各種各樣照 明應用之主要替代件，諸如LED-背光源。200905275 IX. Description of the Invention: [Technical Field] The present invention relates to an apparatus for collimating light, and in particular to a collimation of light that is not limited by a projected etendue device. [Prior Art] Light-emitting diodes (LEDs) are expected to be a major replacement for a variety of lighting applications, such as LED-backlights, in the coming years.

對於一般的LEDs及特定用作背光源的LEDs，普遍存在 的一個問題即為光的混合。光的混合是必須的以便獲得該 光之一均勻強度及/或一均勻色彩。一挑戰是在一盡可能 小的體積内，用盡可能小的損失執行該混合，以便減少一 含有光源的產品之尺寸。在該背景下，例如’根據 US2006/0146573，使用在—個方向被準直並在另一方向有 一顯著角度擴展的-光源已為吾人熟知。在—個方向益準 直導致光束擴展，其保證適當的光混合，而在另—方向的 準直保證該光束被準直以確保系統之功能。這樣做可獲得 最小/受限體積的有效混合系統。 【發明内容】 向 上述不利情況經由根據請求項！之本發明緩和 一根據本發明構 (DP)的光的準直 思之設備被用於具有一初始平均傳播方 ，並包括： 一準直部分 直的準直方向 能夠將該光準直在— 與該平均傳播方向A common problem for general LEDs and LEDs that are specifically used as backlights is the mixing of light. Mixing of light is necessary in order to obtain a uniform intensity and/or a uniform color of the light. One challenge is to perform the mixing with as little loss as possible within a volume that is as small as possible in order to reduce the size of a product containing the light source. In this context, for example, according to US 2006/0146573, the use of a light source that is collimated in one direction and has a significant angular spread in the other direction is well known. Accuracy in one direction leads to beam expansion, which ensures proper light mixing, while collimation in the other direction ensures that the beam is collimated to ensure system function. This results in an efficient mixing system with a minimum/constrained volume. SUMMARY OF THE INVENTION The above disadvantages are based on the request item! The present invention mitigates the quasi-intuitive device of light according to the present invention (DP) for use with an initial average propagation side and includes: a collimating portion of the straight collimating direction capable of collimating the light - And the average direction of propagation

129372.doc 200905275 -分離器部分，能夠把該光分離成在—與該準直方向平 行之方向的N條，及 “-旋轉器部分’能夠將該N條光之每—個之準直方向繞 著該初始平均傳播方向旋轉。 本發：的設備使將一光輻射圖案沿著其平均傳播方向旋 轉及不文一投影集光率限制準直光成為可能。此外，光可 被準直在光導之厚度方向及可㈣合於該光導内’而系 統之厚度，包括該光導、準直器及光源基本上不需要遠遠 度。經由使用該發明構思，在與射束再成形有 可能受益於—三維途徑，其在數個區域中是有 二=背光照明及用於照明器或機動車使用的一般照 :=思不僅射束形狀被旋轉，而且光的實際準直方向 寺二如偏振也被旋轉’其對一些應用是有利的。這使 = =率所設置的限制成為可能。通過光的旋轉， 保持不變。 了被取小化而” '，集光率實際上 經由旋轉器部分作用的旋轉可能較佳地為90。。一 9〇。旋 轉尤其適合於本發明被用作背光 m m m , ，、等之目的，因為其為可 應用的幾何學限制提供適當的 Q0〇，目丨丨甘站 右该N條光被旋轉 9〇則其專隨後可能被”端對端”配置以形成―延長的光 源，該延長的光源以其最小的尺寸被準直。 §亥旋轉器部分通常包括N個旋轉哭 包括三個活動部分， 轉器可較佳地 一第—活動部分’其有一前琢面，光穿過該前琢面進 129372.doc 200905275 入，及一表面能夠以直角反射該光朝著 第一活動部分，其有一表面能夠以直角反射該光朝著 第一活動部分，其有一表面能夠將該光朝著一輸出琢 面以直角反射。 該三個部分適合於達到所需求之轉動，每一部分在最小 數里活動σ卩分的條件下以直肖反射光。該旋轉器可同樣包 括不過兩個部分，其適合於—其中在轉動前後平均傳播方 向不必相同之設備。為達到本發明的目的，在上述部分中 之至^㈤之内或之後的某一階段，不論有兩個或三個活 動°卩刀，5亥平均傳播方向應該平行於該準直方向。 故哥 >古動部分中 ν…卞干乂狂吧比琢寻邵分 外之—媒體之折射率的2.5倍大。對於大祕。之入射角， 此比=致在每—反射面的全反射，其提高旋轉器之光效 j k者光進入旋轉器之第一元件一高折射率導致該光之 -自動準直’因為該光將朝著表面垂直方向折射。129372.doc 200905275 - Separator portion capable of separating the light into N directions in a direction parallel to the collimation direction, and "--rotator portion" capable of collimating the N pieces of light Rotating around the initial average propagation direction. The device of the present invention makes it possible to rotate an optical radiation pattern along its average propagation direction and to limit collimated light without a projection etendue. In addition, the light can be collimated at The thickness direction of the light guide and the thickness of the system can be combined with the thickness of the system, including the light guide, the collimator and the light source. The use of the inventive concept may benefit from beam reshaping. In the three-dimensional way, it has two in several areas = backlighting and general illumination for illuminators or motor vehicles: = thinking not only that the beam shape is rotated, but also the actual collimation direction of the light, such as polarization It is also rotated 'it is advantageous for some applications. This makes it possible to set the limit of the == rate. It remains unchanged by the rotation of the light. It is taken down and the ''light collection rate actually passes through the rotator Partially active The rotation may preferably be 90. . A 9 〇. Rotation is particularly suitable for the purpose of the invention being used as a backlight for mmm, ,, etc., since it provides an appropriate Q0 for the applicable geometrical constraints, and the N light of the right side of the station is rotated by 9 turns. It may then be configured "end to end" to form an "extended source" that is collimated with its smallest dimension. The whirl rotator portion typically includes N rotating cryings including three movable portions, and the rotator preferably has a first movable portion having a front face, through which the light passes through 129372.doc 200905275, and A surface is capable of reflecting the light at a right angle toward the first movable portion, a surface thereof capable of reflecting the light at a right angle toward the first movable portion, a surface having a surface capable of reflecting the light at a right angle toward an output pupil. The three sections are adapted to achieve the desired rotation, with each section reflecting light in a straight ray with a minimum of σ 卩. The rotator can likewise comprise no two parts, which is suitable for the device in which the average propagation direction does not have to be the same before and after the rotation. For the purposes of the present invention, the average propagation direction of the 5H should be parallel to the collimating direction, at any stage within or after the above-mentioned portion, regardless of whether there are two or three active trowels. The old brother > in the ancient part of the ν... 卞 乂 乂 琢 琢 琢 分 分 — — — — — — — — — — — — — — — — 媒体 媒体For the big secret. The incident angle, which is the total reflection at each of the reflecting surfaces, which increases the luminous efficiency of the rotator. The light entering the first component of the rotator has a high refractive index resulting in the auto-collimation of the light. It will be refracted perpendicular to the surface.

該等反射面中之至少一個可設有一塗層，諸如一反射塗 層以农小化光的損失。—泠届夕箱供μ也 貝失 塗層之預備對數個目的可能是有 提兩反射率、防止漏光、保護反射表面等等。 於該準直器’至少兩個活動部分可經由—材料層諸如 二氣而分離，該材料層有比 ，”… 頁比及專，舌動部分更低之折射率。 ^ 7固可忐由一空氣層組成之層的 於有-較小準直角^ i 頂備使本發明適合 的反向== 為空氣層/縫隙將會減少光 、袁離在I i 1保證所有光線被指向於較佳方向内， 通離在表面之間的分界面上之反射。 ⑽ 129372.doc 200905275 對於該準直哭 . 且，至少_附加 動部分之前，兮扁 ^ & α卩分可被添加在第一活 J 6亥傳送部分適於傳送古s —乂 用—傳送部分，a & 、尤至5亥剞琢面。經由使 才< |刀，***一光之特 可能的。改變值、、，Λ 、 ”額至旋轉器之前琢面是 又夂得迗部分之第—矣 琢面之間的坧紐 至該第一活動部分之前 (間的距離同樣是可能的。 為了提高旋轉器之變通靈活性，— 入口/出口侧可处古^ 母一活動部分在每個光 J J此有一傳送部分。 送邱八兮仏 知由以此方法使用該傳 口 P刀，4方疋轉器既可作為一 节枓L、i地令、, 刀離态也可具有足夠變通靈 ‘ 按一適當途徑配置該輸 V. ^ 出先。經由夾入數個此種設 備可獲付-組合分離器/旋轉器/整形器。 經由至少-楔形的光導該準直部分及該分離器部分可進 曰步被組合及實現。楔形光導之使用以良好定義的方式既 ^共準直又提供分離。光將會進入該設備及其後被裝入該 设備内直到其在另一彻丨Ψ私，丄 側出射。廷考慮到安全操作及良好定 義的特性。 該光源可能為一 LED井、、庵，甘、s A 4 m U尤源’其通常被使用於背光源目 的。 該準直器可能被使用於—背光源應用中。 【實施方式】 為更透徹的理解本發明構思，相應地涉及到集光率 (etendue)。集光率是一特性，或—物理量’其於沒有光的 損失之情况下在一光學系統内不能減少，及其被光學系統 δ交计者用於农佳化該系統。然而，設計者通常使用—集光 率二維視圖，其實際上限制了設計的可能性。 129372.doc 200905275 以兩個，:度顯現集光率(投影集光率)的一實例按照： / '簡單化實例其中包括一高度為h之朗伯光源的一 系先被使用。接近該光源之投影集光率則等於 K*2*sin(9〇n，豆中 K a $ 机朴 ，、T K疋一常數。其後考慮在該系統内自 朗伯光源的光被準直為2*3g。。該投影集光率在準直之後 ::等於K，Sin(3"*H。由於該集光率在系統内不能減 ^ °人推斷H'·^須大於或等於h*sin(90o)/sin(30。)。發明At least one of the reflecting surfaces may be provided with a coating such as a reflective coating to reduce the loss of light. —泠 The eve of the box for μ also lost. The preparation of the coating for several purposes may be to mention two reflectivity, to prevent light leakage, to protect the reflective surface and so on. At least two active portions of the collimator can be separated via a layer of material such as two gases, the material layer having a ratio, "..." and the specific refractive index of the tongue portion. The layer consisting of an air layer has a smaller collimation angle. The top surface is suitable for the reverse direction of the present invention. = = the air layer/gap will reduce the light, and the distance from I i 1 ensures that all rays are directed at In the best direction, pass away from the reflection at the interface between the surfaces. (10) 129372.doc 200905275 For this collimation crying. And, at least _ before the additional part, 兮 ^ ^ & α 卩 can be added in the A live J 6 Hai transfer part is suitable for transmitting the ancient s - 乂 - transfer part, a &, especially 5 剞琢 剞琢. By making the lt; | knife, split a light special. Change the value, ,, Λ , ” before the rotator is the first part of the 旋转 矣琢 矣琢 矣琢 矣琢 矣琢 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间 之间Flexibility, - the entrance/exit side can be located at the ancient ^ mother-active part in each light JJ Send the part. Send Qiu Ba Yizhi to use the mouth P knife in this way, the 4-way turret can be used as a section 枓L, i, and the knife can be changed enough. Properly configuring the transmission V. ^Preceding. A combined separator/rotator/shaper can be obtained by sandwiching several such devices. The collimating portion and the separator portion can be accessed via at least a wedge-shaped light guide. Steps are combined and implemented. The use of a wedge-shaped light guide is both collimated and provides separation in a well-defined manner. Light will enter the device and be loaded into the device until it is in the other place. The side exits. The court considers safe operation and well-defined characteristics. The light source may be an LED well, 庵, 甘, s A 4 m U 尤 source' which is usually used for backlight purposes. The collimator may It is used in a backlight application. [Embodiment] For a more thorough understanding of the inventive concept, the etendue is correspondingly involved. The etendue is a characteristic, or - the physical quantity, which is lost in the absence of light. In the case of an optical system, it cannot be reduced, and It is used by the optical system δ to calculate the system. However, designers usually use a two-dimensional view of the etendue, which actually limits the possibility of design. 129372.doc 200905275 Appears in two, : An example of etendue (projected etendue) is as follows: / 'Simplification example A series of Lambertian sources with a height h is used first. The projection etendue close to the source is equal to K*2* Sin(9〇n, Bean K a $ machine, TK 疋 a constant. It is then considered that the light from the Lambertian source is collimated to 2*3g in the system. The projection etendue is collimated After:: equals K, Sin(3"*H. Since the etendue cannot be reduced within the system, it is assumed that H'·^ must be greater than or equal to h*sin(90o)/sin(30.). invention

構思之基礎經由光的旋轉規避了 Η之此限制。 同樣田被使用於背光照明及類似的應用時，自~~ led 點源發出的光需要被轉變成一線源。部分此等問題經由 EP A 1 3〇6 6〇8解決，其中討論了 一緊密光源。刪 描述一設備，該設備有一光導，該光導將一光射束由一基 本上在空間中均勻的射束轉變成-帶狀射束。該在空間中 均勻的射束及帶狀射束有基本上相同的身十束區域以減少光 損失。 雖然EP-A- 1 3 06 608揭示-能夠產生有—小型最小寬度 之帶狀射束的設備，實際上其僅僅經由變換該光的光導之 適宜的尺寸而被限制，纟中呈現的解答仍然有與帶狀射束 準直有關的限制。 本發明構思之第一具體實施例現將參考圖丨_4來描述。 圖1 έ兒明根據第一具體實施例之一設備丨〇〇的整體結構。圖 1所顯示的坐標軸X、y&z說明了方向，2在圖形中向上，y 向右，而X垂直於y及z。一光源11〇，通常為一 LED，發出 在y方向有一初始平均傳播方向的光。光束之界線經由虛 129372.doc -10- 200905275 線112標明，巾光的各個射線經由箭頭標明。注意此等並 不是絕對的界線而僅僅是—指示以便提高說明的清楚性。 該光穿過-準直部分12〇,經由一柱面透鏡124被例證，在 X軸方向準直該光。該準直部分丄2〇基本上是一光學排列， 其在-個方向準直光但在垂直於第一方向的另一方向並不 增加該高度。實例包含兩個平面_，一柱面透鏡，或一楔 形波導。 'The basis of the idea circumvents this limitation via the rotation of light. When the same field is used in backlighting and similar applications, the light emitted from the ~~ led point source needs to be converted into a line source. Some of these problems are solved by EP A 1 3〇6 6〇8, which discusses a compact light source. Deletion describes a device that has a light guide that converts a beam of light from a substantially spatially uniform beam into a ribbon beam. The uniform beam and strip beam in space have substantially the same beam area to reduce light loss. A device capable of producing a strip beam having a small minimum width is actually limited only by the appropriate size of the light guide that transforms the light, and the solution presented in the file is still disclosed in EP-A-1 306 608. There are restrictions associated with the collimation of the ribbon beam. A first specific embodiment of the inventive concept will now be described with reference to FIG. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows the overall structure of a device cartridge according to a first embodiment. The coordinate axes X, y & z shown in Figure 1 illustrate the direction, 2 in the graph up, y to the right, and X perpendicular to y and z. A light source, 11 turns, typically an LED, emits light having an initial average direction of propagation in the y-direction. The boundary of the beam is indicated by the line 119372.doc -10- 200905275 line 112, and the individual rays of the towel are indicated by arrows. Note that this is not an absolute boundary but merely an indication to improve the clarity of the description. The light passes through the collimating portion 12A, exemplified by a cylindrical lens 124, and collimates the light in the X-axis direction. The collimating portion 丄2〇 is basically an optical arrangement that collimates light in one direction but does not increase the height in the other direction perpendicular to the first direction. Examples include two planes, a cylindrical lens, or a wedge waveguide. '

這樣的準直光穿過-分離器部分13〇，其中該光在χ轴方 向被分離成Ν條。較佳地即此分離器部分13〇基本上是鄰接 於《玄準直1§部分120 ’其中該光自該準直器部分12〇被導向 至一旋轉器部分140。在該旋轉器部分140内該Ν條光繞著乂 方向被旋轉90。。一般該旋轉器部分14〇包括在一個方向互 相緊挨著配4的數㈣轉器。在該被描述之實例中該等散 開的光仍然有相同的平均傳播方向 '然而應注意的是，如 自下述描述將清楚的，纟等可能相同地有另—方向，諸如 對立或垂直於被例舉之方向。 圖2顯不根據第一具體實施例之旋轉器部分1之一分解 透視圖。該旋轉器部分14〇較佳地由玻璃，c〇c(環狀烯烴 “聚物）PMMA(聚甲基丙稀酸曱酯），pC(聚碳酸酯）及此 等材料製成且可被分成三個構造，或活動，射束整形部分 142 ’ 144 ’ 146。此等在下文參考光來描述，在此經由穿 過該旋轉器140之一鍊接線114標明。光114之準直之角度 及方向 二由，.、、員示在紅轉器1 4〇前後的箭頭之長度所標明（短 箭頭相應於準直之高角度，反之亦然）。 129372.doc 200905275 光穿過一前琢面148進入該第一活動部分142，接著前進 到一相對於光114之平均傳播方向成45。角之反射面15〇， 從而以直角反射該光。該反射面150在形狀上基本上為矩 形，在該光1 04已經被準直之方向有最小尺寸。 該第一反射面150將該光指向一第二活動部分丨44，其中 該光經由一第二反射面152(在活動部分144之另一邊）以直 角反射。Such collimated light passes through the separator portion 13A, where the light is separated into a beam in the direction of the x-axis. Preferably, the separator portion 13 is substantially adjacent to the "straight alignment 1 § portion 120" wherein the light is directed from the collimator portion 12 to a rotator portion 140. The beam light is rotated 90 in the 乂 direction within the rotator portion 140. . Typically, the rotator portion 14 includes a number (four) of transducers that are next to each other in one direction. In the described example, the scattered light still has the same average direction of propagation'. However, it should be noted that as will be clear from the following description, 纟, etc. may have the same direction, such as opposite or perpendicular to The direction being enumerated. Fig. 2 shows an exploded perspective view of one of the rotator portions 1 according to the first embodiment. The rotator portion 14 is preferably made of glass, c〇c (cyclic olefin "polymer" PMMA (polymethyl methacrylate), pC (polycarbonate) and the like and can be Divided into three configurations, or active, beam shaping portions 142 ' 144 ' 146. These are described below with reference to light, here indicated by a link line 114 passing through the rotator 140. The angle of collimation of light 114 and Direction 2 is indicated by , , , and the length of the arrow before and after the red turner 1 4 (the short arrow corresponds to the high angle of collimation, and vice versa). 129372.doc 200905275 Light passes through a front face 148 Entering the first active portion 142, then proceeding to a 45. angled reflective surface 15〇 relative to the average direction of propagation of the light 114, thereby reflecting the light at a right angle. The reflective surface 150 is substantially rectangular in shape, The light 104 has been dimensioned to have a minimum dimension. The first reflective surface 150 directs the light toward a second movable portion 丨44, wherein the light passes through a second reflective surface 152 (on the other side of the active portion 144) Reflect at right angles.

該光被發送給一第三活動部分1 46 ’在該被顯示之實例 中雖然其被旋轉了但其基本上是類似於該第一活動部分 142。該光114經由一第三反射面154反射並穿過一輸出琢 面1 56離開該第三活動部分1 46，及因此離開該旋轉器部分 140 ° 在一替代具體實施例中，如圖3所顯示，該活動部分 142、144、146經由有一較低折射率，n，諸如空氣 之層158、160而分離，以使該旋轉器14〇適合於有—較小 準直角度之光。該空氣層/縫隙158、16〇將減少該光^反 向散射，基本上保證所有光線被指向於較佳方向，遠離表 面之間的分界面上之反射。空氣縫隙之—替代是干涉堆疊 體，例如特殊的塗層，其可傳送入射角小於仏。的光及2 射有-較大人射角的光。如若需要該系統之各個組件可被 配置在一殼體内。 在又一具體實施例中，如圖々所磲千苴士* _、 I"貝不其中類似的組件已 經被給予增加了 1 00之相同的數字 双予6亥紅轉器240包括4個 附加部分262、264、265、266全部用於值、主t ^ 用於傳送光。根據上述 129372.doc -12- 200905275 說明，鄰接部分可經由有一較低折射率η，諸如空氣= 之層258、260、268、270、271、272而分離，以使該旋= 器240適合於有一較小準直角度之光。該等傳送部分％2、 264、265、266給予該旋轉器240變通靈活性，使得該旋轉 器240適合於物理限制是可能的，例如，當數個旋轉器2仂 需要被放入時。 應注意的是旋轉器之各個組件之順序可被調換，仍然庐The light is sent to a third active portion 1 46 ' in the illustrated example, although it is rotated, it is substantially similar to the first active portion 142. The light 114 is reflected by a third reflecting surface 154 and exits the third movable portion 1 46 through an output pupil surface 156, and thus leaves the rotator portion 140°. In an alternative embodiment, as shown in FIG. It is shown that the active portions 142, 144, 146 are separated by a lower index of refraction, n, such as layers 158, 160 of air, to adapt the rotator 14 光 to light having a smaller collimation angle. The air layers/slits 158, 16 〇 will reduce the backscattering of the light, substantially ensuring that all of the light is directed in a preferred direction away from the reflection at the interface between the surfaces. Air gaps - instead of interference stacks, such as special coatings, can deliver incident angles less than 仏. The light and the 2 shots have a larger angle of light. The various components of the system can be configured in a housing if desired. In yet another embodiment, as shown in the figure, thousands of gentlemen * _, I " Bayi not similar components have been given the same number of increments of 100 double to 6 hai red rotator 240 including 4 additional Portions 262, 264, 265, 266 are all used for values, and the main t^ is used to transmit light. According to the above description of 129372.doc -12- 200905275, the abutting portion may be separated via a layer 258, 260, 268, 270, 271, 272 having a lower refractive index η such as air = to make the rotator 240 suitable for There is a light with a smaller collimation angle. The transfer portions %2, 264, 265, 266 give the rotator 240 a flexible flexibility, making it possible to adapt the rotator 240 to physical constraints, for example, when several rotators 2 仂 need to be placed. It should be noted that the order of the various components of the rotator can be exchanged, still 庐

得相同的結果。圖5顯示這樣一實例，其中該光首先是被 向上指向的。 同樣’應注意的是當提及以直角反射時，此是參照該平 均傳播方向，而非各個的光線。同樣為了規避請求項自一 直角的較小偏差被預見及應該被包含在附加請求項内。 在一較佳具體實施例中，該分離器部分提供一光導，該 光導將光分離、限制及導向至該實際旋轉器34〇之第一傳 送部分362。總數為N個（在圖6中為5個）的第一分離器/光導 部分320/330被配置在彼此上方，且其後的傳送部分362被 定徑以保證該N個旋轉器的隨後部分不會彼此干擾。該等 奴後的部分是以這樣一方式被配置的，即每個基本上矩形 的政開光被旋轉及偏移使得所有散開光配置成一排。此被 顯不於圖6中及總的來說其提供一節省空間之設備，該設 備準直邊光源不受投影集光率之限制。同樣，應注意的是 本發明的設備保存了光的重要特性。隨著射束被旋轉，其 特性也是如此，諸如準直、偏振等等，導致出射束與入射 束同樣被良好定義，其在一些應用中是有利的。這樣一實 129372.doc -13- 200905275 例在圖7中顯示’使用較少的組件及以一垂直於初始平均 專播方向的方向輸出該光束，此係在一些應用中可能是有 =的一個特徵。圖7所顯示之裝配可能比圖6中所顯示的更 P省工間。對於圖6及圖7所顯示之設備，分離器部分可妙 由一準直器之排列替換，諸如一透鏡或一光導，其中該傳 G邛刀362直接緊接著該準直器部分並用於分離光。 3被描述之設備可直接適用於基於光導的照明設備，諸如 背光源，及需要一有高準直度的細薄系統，諸如牆體洗^ 器。 Μ 應注意的是較佳具體實施例僅例舉實例。在如附加过、 項所定義的發明構思之範疇内數個修飾是可能。附加圖: 之目的僅具說明性且距離及尺寸不按比例繪製。 " 【圖式簡單說明】 ^ 圖1疋一使用該發明構思的準直設備之一示意光學圖。 圖2是一分解透視圖’描述一根據本發明構思之第一具 體實施例之一旋轉器。 圖3是-根據本發明構思之第二具體實施例之—旋轉器 之分解透視圖。 °° 圖4是一根據本發明構思之第三具體實施例之—旋轉器 之分解透視圖。 ° 圖5是一根據本發明構思之第四具體實施例之一旋轉器 之分解透視圖。 圖6是一分離器/旋轉器組合之—透視圖。 圖7是另一分離器/旋轉器組合之—透視圖。 129372.doc -14- 200905275 【主要元件符號說明】 110 光源 112 虛線 114 光 120 準直器部分 124 圓柱形透鏡 130 分離器部分 140 旋轉器部分 142 第一活動部分 144 第二活動部分 146 第三活動部分 148 前琢面 150 第一反射面 152 第二反射面 154 第三反射面 156 輸出琢面 158 空氣層 160 縫隙 242 第一活動部分 244 第二活動部分 250 第一反射面 252 第二反射面 254 第三反射面 258 空氣層 129372.doc -15 200905275 260 空氣層 262 傳送部分 264 傳送部分 265 傳送部分 266 傳送部分 268 空氣層 270 空氣層 271 空氣層 272 空氣層 310 光源 320 第一分離器 330 光導部分 340 第一傳送部分 362 旋轉器 129372.doc -16Get the same result. Figure 5 shows an example in which the light is first directed upwards. Again, it should be noted that when referring to reflection at a right angle, this refers to the average direction of propagation, rather than the individual rays. Also, in order to circumvent the small deviation of the request item from a right angle, it is foreseen and should be included in the additional request item. In a preferred embodiment, the splitter portion provides a light guide that separates, confines, and directs light to the first transfer portion 362 of the actual rotator 34. A total of N (5 in Figure 6) first splitter/lightguide portions 320/330 are disposed above each other, and subsequent transfer portions 362 are sized to ensure subsequent portions of the N rotators Will not interfere with each other. The slave parts are configured in such a way that each substantially rectangular coma is rotated and offset such that all of the diffused light is arranged in a row. This is not shown in Figure 6 and in general it provides a space saving device that is not limited by the projected etendue. Again, it should be noted that the apparatus of the present invention preserves important characteristics of light. The same is true as the beam is rotated, such as collimation, polarization, etc., resulting in the beam being as well defined as the incident beam, which is advantageous in some applications. Such a real 129372.doc -13- 200905275 example shows in Figure 7 'use fewer components and output the beam in a direction perpendicular to the initial average broadcast direction, which may be a = in some applications feature. The assembly shown in Figure 7 may be more economical than the one shown in Figure 6. For the apparatus shown in Figures 6 and 7, the separator portion can be replaced by an arrangement of collimators, such as a lens or a light guide, wherein the G-blade 362 is directly adjacent to the collimator portion and used for separation. Light. 3 The described device can be directly applied to light guide-based lighting devices, such as backlights, and requires a thin system with high degree of collimation, such as a wall washer. Μ It should be noted that the preferred embodiments are merely illustrative of the examples. Several modifications are possible within the scope of the inventive concept as defined by the appended claims. Additional drawings: The purpose is only illustrative and the distance and dimensions are not drawn to scale. "Simplified illustration of the drawing] ^ Figure 1 is a schematic optical diagram of one of the collimating devices using the inventive concept. Figure 2 is an exploded perspective view of a first embodiment of a rotator in accordance with the teachings of the present invention. Figure 3 is an exploded perspective view of a rotator in accordance with a second embodiment of the inventive concept. Figure 4 is an exploded perspective view of a rotator in accordance with a third embodiment of the inventive concept. Figure 5 is an exploded perspective view of a rotator according to a fourth embodiment of the inventive concept. Figure 6 is a perspective view of a separator/rotator combination. Figure 7 is a perspective view of another separator/rotator combination. 129372.doc -14- 200905275 [Key element symbol description] 110 Light source 112 Dotted line 114 Light 120 Collimator part 124 Cylindrical lens 130 Separator part 140 Rotator part 142 First active part 144 Second active part 146 Third activity Portion 148 Front face 150 First reflective face 152 Second reflective face 154 Third reflective face 156 Output face 158 Air layer 160 Slot 242 First active portion 244 Second active portion 250 First reflective surface 252 Second reflective surface 254 Third reflecting surface 258 Air layer 129372.doc -15 200905275 260 Air layer 262 Transfer portion 264 Transfer portion 265 Transfer portion 266 Transfer portion 268 Air layer 270 Air layer 271 Air layer 272 Air layer 310 Light source 320 First splitter 330 Light guide portion 340 first transfer portion 362 rotator 129372.doc -16

Claims (1)

200905275 十、申請專利範園： 一種用於具有一初始平均傳播方向的光的準直及旋轉之 設備，包括： 一準直部分（120) ’能夠將該光準直在一與該初始平均 傳播方向垂直的準直方向， 一分離為部分（130)，能夠把該光分離成在一與該準直 方向平行之方向的N條，及 一旋轉器部分（140) ’能夠將該^^條光之每一個之準直 方向繞著該初始平均傳播方向旋轉，以便達到一不受投 影集光率限制的準直。 2.如請求項1之設備，其令該旋轉為9〇。。 3·如請求項2之設備，其中該旋轉器、包括兩個活動部分： -第-活動部分’其有一前琢面，光穿過該前琢面進 入，及一表面能夠以直角反射該光朝著 第一活動部分，其有一表面能夠將該光朝著一輸出 琢面以直角反射。 4·如：求項2之設備，其中該旋轉器包括三個活動部分： —第-活動部分，其有—前琢面，光穿過該前琢面進 入，及一表面能夠以直角反射該光朝著 =第二活動部分，其有一表面能夠以直角反射該光朝著 第二活動部分，其有一表面能夠將該光朝著一輸出 琢面以直角反射。 5·如凊求項3或4之設備，其中該等活動部分中之至少—個 有比該等部分外之一媒體之折射率之2 5倍大的一折射 129372.doc 200905275 率 ο 6. 如請求項3或4之設備，其中該等反射面中之至少一個設 有一塗層，諸如一反射塗層。 7. 如巧求項3或4之設備，其中至少兩個活動部分經由一有 比該等活動部分更低之折射率的材料層而分離。 8 ’如明求項3或4之設備’其中至少一附加傳送部分被添加 在該第一活動部分之前，該傳送部分適於傳送光至該前 琢面。 9. 士明求項3或4之設備’其中每一活動部分在每個光入口/ 出口側有一傳送部分。 10. 如請求項3或4之設備，其中該準直部分及該分離器部分 、'二由至少一楔形的光導被組合及實現。 11. 如凊求項3或4之設備，其中該光自一 LED光源發出。 12. —種使用如請求項丨_4中任何一項之準直器 巧叱源。 129372.doc200905275 X. Patent Application Park: A device for collimating and rotating light having an initial average propagation direction, comprising: a collimating portion (120) 'can collimate the light at the initial average propagation The direction perpendicular to the collimation direction, separated into a portion (130), is capable of separating the light into N strips in a direction parallel to the collimation direction, and a rotator portion (140) 'can The collimation direction of each of the lights is rotated about the initial average propagation direction to achieve a collimation that is not limited by the projection etendue. 2. The device of claim 1, which causes the rotation to be 9 〇. . 3. The device of claim 2, wherein the rotator comprises two movable portions: - a first active portion having a front face through which light enters, and a surface capable of reflecting the light at a right angle Toward the first movable portion, it has a surface that reflects the light at a right angle toward an output pupil. 4. The apparatus of claim 2, wherein the rotator comprises three movable portions: a first-active portion having a front face, light entering through the front face, and a surface capable of reflecting at a right angle The light is toward the second movable portion, and has a surface capable of reflecting the light at a right angle toward the second movable portion, a surface having a surface capable of reflecting the light at a right angle toward an output pupil. 5. The apparatus of claim 3 or 4, wherein at least one of the active portions has a refractive index greater than 25 times the refractive index of a medium other than the portions 129372.doc 200905275 rate ο 6. The apparatus of claim 3 or 4, wherein at least one of the reflective surfaces is provided with a coating, such as a reflective coating. 7. The apparatus of claim 3 or 4 wherein at least two of the active portions are separated by a layer of material having a lower index of refraction than the active portions. 8 'A device of the item 3 or 4' wherein at least one additional transfer portion is added before the first active portion, the transfer portion being adapted to transmit light to the front face. 9. The device of claim 3 or 4 wherein each of the active portions has a transfer portion on each of the light entrance/exit sides. 10. The apparatus of claim 3 or 4, wherein the collimating portion and the separator portion, 'two are combined and implemented by at least one wedge shaped light guide. 11. The device of claim 3 or 4, wherein the light is emitted from an LED source. 12. A collimator that uses any of the items of item _4. 129372.doc