200913781 九、發明說明： 【發明所屬之技術領域】 本發明係關於一發光裝置及一種用於控制一發光裝置之 方法。 【先前技術】 . 一發光裝置之一實例，尤其一自動發光裝置，被揭示於 2005年西班牙利昂國際照明技術委員會中期會議摘要中 Mariana G. Figueiro及Mark S· Rea所修訂之文件"在光照及 (' 健康領域的最近研究正展開在保健環境中使用LED光之可 能性"。具體而言，該引用的文件揭示一基於發光二極體 (LED)發光裝置，其包括一琥珀色LED陣列，有一被動紅 外（PIR)移動感測器被連接於該陣列。在彳貞測到移動時， 舉例而言在安裝有LED陣列之室内出現一人員時，該等 LED被持續增加的以便完全開啓。在三分鐘後若無移動被 偵測則該等LED其後被關閉。這樣一辦法允許該等led只 有當附近一移動人員需要時才處於開啓狀態下，以允許節 〇 能等等。 【發明内容】 鑒於上述先前技術，本發明之一目的是提供—改良式的 發光裝置，其尤其更為多功能及允許節能更多。 自下述描述將明白之此等及其他目的是藉由一發光裝置 及一種根據附加請求項用於控制一發光裝置之方法而實 現。 根據本發明之一態樣，提供有一發光裝置，包括：至少 130916.doc 200913781 一光源；一用於偵測至一物體上的距離之偵測器·及一控 制單疋，其適以若該至少一光源是關閉的，依據距離谓測 而開啓該（等）光源，並按照該被偵測距離而調整該（等）光 源之亮度。 因此，當在該偵測器範圍内之任何距離被偵測時（即， 出現一物體）’應保證該光源是開啓的，及經由被開啓時 的光源發出的光之亮度及強度是由偵測器所谓測的特定距 離所決定。此外，隨著該彳貞測距離變化，該光源之亮度也 iw之I化。此應當與上述提及之其中該光源總是完全開啓 的而無關於至物體的距離之先前技術辦法相比。當無更= 距離被債測時’該光源可在該設置亮度級上開啓持續一預 定時間段及其後可被關閉。該至少一光源之一照明區域或 方向可至少部分地與該偵測器之一照明區域或方向一致， 藉此一物體或其緊接的圍繞物之照明隨著其移動更近於或 遠離該發光裝置而變化。 本發光裝置因此考慮到自動控制及調整該亮度級（在關 =或完全開啓之間逐漸地進行），因此具有最佳照明、節 龅多功旎等等’將進一步被解釋於下文中。 在—種實施例中，在一較近距離被偵測時，該控制單元 可叹置一較高強度之發射光，及在一較遠距離被偵測時設 置-較低強度。此可有利地被使用於一有一展示區域，舉 例而言-具有產品之貨架之商店中，其在—顧客（物體）二 近時該展示區域被照亮得越來越亮，以使得其顯得更明 1309l6.doc 200913781 反之’ 一較低強度可被設置用於一較短偵測距離，而一 較高強度用於一較長距離。這樣一設置在該物體本身是經 由該光源照亮之情況中是有利地：一較遠物體需要較高強 度以被照明至一需求程度，而一較近物體僅需一較低強度 就足夠了。此避免了眩目及/或過度暴光及有利於節能（無 需使用較強的光）。 本發光裝置之一例示性彳貞測器適以傳送一較長的距離j古 號及一較短的距離信號；及接收從該物體上被傳送的信號 之任何反射，藉此該較長距離信號反射的接收指示一較長 距離而該較短距離信號反射之接收指示一較短距離。至 此，距離偵測器之解析度可經由傳送不同中間距離的附加 信號而被提高。此外，在該發光裝置内，該光源之一特定 強度較佳地與一特定傳送信號相關以便於容易操作。假定 舉例而言’三個具有不同距離之信號被傳送。舉例而言， 當該光源首先是關閉時，及若無反射信號被偵測，該光源 依然保持關閉。若其後該最長距離信號之反射被偵測（而 不是任何較短距離的反射），該光源將從完全地關閉轉向 至最暗級。at匕夕卜，若在此之後該中間距離信狀反射被偵 測（及同樣該較長距離信號的反射，而非該最短距離的反 射），該光源的強度被提高一級。最終，若該最短距離信 號之反射被偵測，該光源轉向其最亮級。舉例而言，該偵 測器可為一基於紅外線之偵測器，藉由一 ir發光二極體 (LED)傳送IR信號及藉由一 IR感測器接收反射。 除了該例示性偵測器，其他就本身而言為已知的近接感 130916.doc 200913781 測器可被使用’舉例而言，一電場或一超音波近接感測 器。 本發光裝置較佳地為-其中光是藉由該至少一光源被引 進於-光導（較佳地為-薄光導板）内之類型。在該光導 内，該光在藉由複數個外部輕合結構物而被提取之前可被 /¾ 口 n該至少-光源可為複數個led，尤其是被配 置在該光導内之側發光LED，而該等外部编合結構可為用 於與該光導板平面垂直地提取光之傾斜的反射物。LED提 供數個優於傳統光源之優點，諸如長使用期限、低操作電 i等等此外，在一單個的LED光並不充分及多重LED的 光需要被組合以形成-發光源時，混合自該光導内的多重 led及外部耦合的光是有益的。除了 LED，其他適當的光 源可被使用，諸如其他半導體光源（例如，雷射二極體）。 在一進-步實施例中，該發光裝置此外包括至少一適以 發光之附加光源；一用於偵測至一物體的距離之第二偵測 盗，及f 一控制單π，其適以若該至少一附加光源是關 閉的，依據經由搞測器的距離伯測而開啓該至少一附加光 源’並按照經由該第二谓測器偵測的距離而調整該附加光 源之亮度。。此實施例允許該發光裝置之光源遵循一物體 (諸如一人員)之移動。隨著該物體經過，該照明是自動地 隨之被調整的’提供最佳照明及節能。舉例而言，當一物 體’諸如一人員，首先位於一由該首先提及之偵心及光 源服務之區域，其移動至一由該其次提及之债測器及光源 服務之鄰接部分地重疊區域時，該光逐漸地從該第一光源 130916.doc 200913781 轉移向該第二光源。 該至少一附加光源及該第二偵測器可與上述之首先提及 之光源及债測器是相同類型。此外，該第二控制單元可為 一分離地控制單元’或其功能可被併入上述首先提及之控 制單元内。 根據本發明之另一態樣，提供有一種用於控制一包括至 少一光源之發光裝置之方法，該方法包括：偵測至一物體 之距離；如該至少一光源是關閉的，依據距離偵測而開啓 該光源；並按照該被偵測的距離調整經由該至少一附加光 源發出的光之強度。此態樣顯示了如本發明先前所討論態 樣類似之優點。 【實施方式】 圖1是根據本發明之一實施例的一發光裝置10之一方塊 圖該發光裝置10較佳地是一適以照明一個或多個物體之 照明裝置。 該發光裝置10包括至少一光源12。舉例而言，該光源12 可為一個或多個發光二極體（LED)。該光源12被連接於一 控制單元14 ’該控制單元一般適以經由供應適當的命令或 電流或電壓來管理該光源12的輸出。 該控制單元14進一步被連接於一 貞測器1 6。該/(貞測器1 6 適以债測（自該偵測器16)至一物體18之距離d。該偵測器16 之範圍及該偵測器16之方向有助於決定該物體1 8可被價測 及該距離d可被決定之一區域2 〇。在一些應用中，該偵測 益區域20可至少部分地符合於該光源12之一照明區域22， 130916.doc -10- 200913781 但在一些應用中，該偵測器區域20可自該照明區域22上分 離（如圖1顯示）。 刀 该控制單元14進一步適以依據經由該偵測器16的任何距 離偵測而開啓該光源12，若該光源12並非已經開啓，並按 照經由偵測器16偵測的物體18之特定距離d而調整該光源 1 2之7C度或強度。若光源1 2起初是開啓的’則距離被偵測 時其保持開啓，但該亮度是根據該被偵測的距離而被調整 的。 至此，在该發光裝置1 〇之一例示性操作中，該光源12首 先為開啓或關閉的。該開啓狀態取決於應用可或為一最暗 級或完全的開啓。若在此狀態無距離d經由偵測器丨6被偵 測，該控制單元14將不會改變該光源！ 2之狀態，因此其將 保持開啓或關閉狀態。然而，若一物體丨8出現在該偵測器 區域視野内，至該物體之一距離d經由偵測器丨6被偵測， 及該控制單元14從而將開啓該光源12，若其並非已經處於 開啓狀態。當處於開啓狀態時，該光源丨2之亮度，即，經 由該開啓狀態的光源12發出的光之強度，取決於經由該偵 測器偵測的至一物體之距離。由於該偵測器區域2〇之視野 通常表不該最遠的可偵測距離，其可對應於該光源亮度之 一極值。取決於應用，該極值可指該光源丨2在此是被設置 成完全開啓或最暗級的。若該物體其後接近時，即一較短 距離d經由偵測器16被偵測，該控制單元丨4將因此自動地 調整該光源之亮度或輪出。也就是說，自完全開啓的情況 中，該凴度疋被降低的，而自最暗級的情況中，該亮度是 1309l6.doc200913781 IX. Description of the Invention: [Technical Field] The present invention relates to a light-emitting device and a method for controlling a light-emitting device. [Prior Art] An example of a illuminating device, in particular an automatic illuminating device, is disclosed in the revised document by Mariana G. Figueiro and Mark S. Rea in the summary of the 2005 Intern meeting of the International Lighting Technology Committee of Leon, Spain. Illumination and ('Recent research in the field of health is unfolding the possibility of using LED light in a healthcare environment". Specifically, the cited document discloses a light-emitting diode (LED) based illumination device that includes an amber color In the LED array, a passive infrared (PIR) motion sensor is connected to the array. When the movement is detected, for example, when a person appears in the room in which the LED array is mounted, the LEDs are continuously increased. Fully turned on. After three minutes, if no movement is detected, the LEDs are then turned off. This way allows the leds to be turned on only when needed by a nearby mobile person to allow thrift, etc. SUMMARY OF THE INVENTION In view of the foregoing prior art, it is an object of the present invention to provide an improved illumination device that is particularly versatile and allows for more energy savings. It will be apparent from the following description that this and other objects are achieved by a lighting device and a method for controlling a lighting device in accordance with an additional claim. According to one aspect of the invention, a lighting device is provided, including: 130916.doc 200913781 A light source; a detector for detecting a distance to an object, and a control unit adapted to turn on the distance according to the distance pre-measure if the at least one light source is off (etc. a light source, and adjusting the brightness of the light source according to the detected distance. Therefore, when any distance within the range of the detector is detected (ie, an object appears), the light source is guaranteed to be The brightness and intensity of the light that is turned on and emitted by the light source when turned on is determined by the detector's so-called specific distance. In addition, as the measured distance changes, the brightness of the light source is also iw This should be compared to the prior art method mentioned above in which the light source is always fully open without regard to the distance to the object. When no more = distance is measured, the light source can be at the set brightness level. Turning on for a predetermined period of time and thereafter can be turned off. One of the at least one light source illumination area or direction can be at least partially coincident with an illumination area or direction of the detector, whereby an object or its immediate The illumination of the surround changes as it moves closer to or away from the illumination device. The illumination device thus takes into account the automatic control and adjustment of the brightness level (gradually between off = or fully on) and therefore optimal Lighting, thrift, etc. will be further explained below. In an embodiment, the control unit can sigh a higher intensity of the emitted light when a closer distance is detected, and Set - a lower intensity when detected over a longer distance. This can advantageously be used in a display area, for example - in a store with a shelf of products, when the customer (object) is near The display area is illuminated brighter and brighter to make it appear brighter. 1309l6.doc 200913781 Conversely 'a lower intensity can be set for a shorter detection distance, and a higher intensity is used for a longer distance . Such an arrangement is advantageous in the case where the object itself is illuminated by the light source: a farther object requires a higher intensity to be illuminated to a desired level, and a closer object requires only a lower intensity. . This avoids glare and/or excessive exposure and contributes to energy savings (no need to use stronger light). An exemplary detector of the present illumination device is adapted to transmit a longer distance j and a shorter distance signal; and receive any reflection of the transmitted signal from the object, whereby the longer distance The receipt of the signal reflection indicates a longer distance and the reception of the shorter distance signal reflection indicates a shorter distance. To this end, the resolution of the distance detector can be increased by transmitting additional signals of different intermediate distances. Moreover, within the illumination device, a particular intensity of the light source is preferably associated with a particular transmitted signal for ease of operation. Assume, for example, that three signals having different distances are transmitted. For example, when the light source is first turned off, and if no reflected signal is detected, the light source remains off. If the reflection of the longest distance signal is detected later (rather than any shorter distance reflection), the source will turn from fully off to the darkest level. At the moment, if the intermediate distance signal reflection is detected (and also the reflection of the longer distance signal, rather than the reflection of the shortest distance), the intensity of the source is increased by one level. Finally, if the reflection of the shortest distance signal is detected, the source turns to its brightest level. For example, the detector can be an infrared based detector that transmits IR signals through an ir light emitting diode (LED) and receives reflections by an IR sensor. In addition to the exemplary detector, other proximity sensors are known per se. 130916.doc 200913781 The detector can be used, for example, an electric field or an ultrasonic proximity sensor. The present illumination device is preferably of the type in which light is introduced into the -lightguide (preferably a thin light guide) by the at least one light source. Within the light guide, the light may be/supplied before being extracted by a plurality of external light-weight structures. The at least-light source may be a plurality of LEDs, particularly side-emitting LEDs disposed within the light guide. The outer woven structures may be reflectors for extracting the tilt of the light perpendicular to the plane of the light guide. LEDs offer several advantages over traditional light sources, such as long life, low operating power, etc. In addition, when a single LED light is not sufficient and multiple LEDs need to be combined to form a source of illumination, Multiple LEDs within the light guide and externally coupled light are beneficial. In addition to LEDs, other suitable light sources can be used, such as other semiconductor light sources (e.g., laser diodes). In a further embodiment, the illumination device further comprises at least one additional light source adapted to emit light; a second detection thief for detecting the distance to an object, and f a control unit π, which is suitable for If the at least one additional light source is turned off, the at least one additional light source is turned on according to the distance measured by the detector, and the brightness of the additional light source is adjusted according to the distance detected by the second predator. . This embodiment allows the light source of the illumination device to follow the movement of an object, such as a person. As the object passes, the illumination is automatically adjusted to provide the best illumination and energy savings. For example, when an object, such as a person, is first located in an area serviced by the first mentioned heartbeat and light source, it moves to an overlapping portion of the next mentioned debt detector and light source service. In the region, the light is gradually transferred from the first light source 130916.doc 200913781 to the second light source. The at least one additional light source and the second detector may be of the same type as the first mentioned light source and the debt detector. Furthermore, the second control unit can be a separate control unit' or its function can be incorporated into the control unit mentioned above first. According to another aspect of the present invention, a method for controlling a light emitting device including at least one light source is provided, the method comprising: detecting a distance to an object; if the at least one light source is off, depending on the distance The light source is turned on; and the intensity of light emitted by the at least one additional light source is adjusted according to the detected distance. This aspect shows similar advantages as previously discussed in the present invention. [Embodiment] FIG. 1 is a block diagram of a lighting device 10 in accordance with an embodiment of the present invention. The lighting device 10 is preferably a lighting device adapted to illuminate one or more objects. The illumination device 10 includes at least one light source 12. For example, the light source 12 can be one or more light emitting diodes (LEDs). The light source 12 is coupled to a control unit 14' which is generally adapted to manage the output of the source 12 via the supply of appropriate commands or current or voltage. The control unit 14 is further connected to a detector 16. The / (detector 16 is adapted to measure the distance from the detector 16 to an object 18. The range of the detector 16 and the direction of the detector 16 help determine the object 1 8 can be priced and the distance d can be determined in one of the regions 2. In some applications, the detection region 20 can at least partially conform to one of the illumination regions 22 of the light source 12, 130916.doc -10- 200913781 However, in some applications, the detector area 20 can be separated from the illumination area 22 (as shown in Figure 1). The knife control unit 14 is further adapted to be turned on in accordance with any distance detection via the detector 16. The light source 12, if the light source 12 is not already turned on, adjusts the 7C degree or intensity of the light source 12 according to a specific distance d of the object 18 detected by the detector 16. If the light source 12 is initially turned on, then The distance remains on when detected, but the brightness is adjusted based on the detected distance. Thus, in one exemplary operation of the illumination device 1, the light source 12 is first turned "on" or "off". The on state depends on whether the application can be either the darkest level or the full on. In this state, no distance d is detected via the detector 丨6, and the control unit 14 will not change the state of the light source! 2, so it will remain on or off. However, if an object 丨8 appears in the Detect Within the field of view of the detector, a distance d to the object is detected via the detector 丨6, and the control unit 14 will thereby turn on the light source 12 if it is not already in an open state. The brightness of the light source 丨2, that is, the intensity of the light emitted by the light source 12 via the open state depends on the distance to an object detected by the detector. Since the field of view of the detector area 2 The farthest detectable distance, which may correspond to an extreme value of the brightness of the light source. Depending on the application, the extreme value may mean that the light source 丨2 is here set to be fully open or darkest. When the object approaches, a short distance d is detected via the detector 16, and the control unit 将4 will thus automatically adjust the brightness or turn of the light source. That is, in the case of full turn-on, The temperature is reduced, and since the most In the case of dark levels, the brightness is 1309l6.doc
U 200913781 被增強的。若該距離其後再一次增加，該亮度因此增強或 降低。在該最近的可價測距離仏，該光源12可被設置在 最低亮度級（或完全地被關閉）或在最高亮度級，同樣取決 於應用。虽無距離被偵測指示在該偵測區域2〇内是無物體 18的，該光源12從最後偵測時間開始可在該設置級保持開 啓一預定時間段，而其後被關閉或返回至一預定級，若無 其他距離被偵測。因此，該光源12可保持開啓，即使該物 體暫時地退出該偵測區域。 圖2概括了包括步驟S1_S3的該發光裝置1〇之操作或控制 之方法。 應注意的是該物體之存在僅可被指示為一距離測量之附 加產物。若未偵測到距離（例如，無物體或物體是在範圍 之外），因此便無物體存在。另一方面，若偵測到一距 離，則因此有一物體存在。類似地，動作可被偵測：若偵 測到的距離變化便有動作，而若偵測到的距離為常數便無 動作。根據已知技術（例如，PIR)之動作偵測能力可同樣 被添加給該偵測器1 6以增強該存在/動作偵測。 一適以被使用於上述發光裝置中之特定距離偵測器16, 將參考圖3a-3d而描述。該距離偵測器16，包括一汛傳送器 24(例如，一 IR LED)及一 IR接收器26。該汛傳送器是適以 傳送各種射程之IR信號。在此，各具有—特定射程（rX)之 二個不同的信號可被傳送，但該等射程之數目可取決於需 求解析度而變化《此等具有不同射程之信號可經由對ir LED 24施加不同電流位準之脈衝而實現，其中該最高電流 130916.doc -12· 200913781 、子應於該具有最長射程之信號而該最低電流位準對應 於該具有最短射程之信號。 、被傳送的信冑其後可由該物體反#，並取決於哪一反射 的L號疋由IR接收器26而接收，至該物體之距離可被決 有利地，待s又置的光源12之一特定的亮度或暗度等級 是與每個不同的信號相關。 舉例而言，假定如上所討論之三個不同的信號射程rl_ r3。rl為最短的射程，r2為中等的射程，r3為最長的射 程同樣假定該光源起初是關閉的。若無反射的信號被偵 測到（即，該物體1 8是在該最長的射程r3之外），該光源則 將保持關閉（圖3a)。若該最長的射程信號r3之反射r,3此時 被偵測到（但並非任何較短的射程之反射），該光源自完全 的關閉轉向至最暗等級（，，光源弱"，圖3b)。此外，若該中 等射程信號r2之反射r’2此時被偵測到（同樣包括較長射程r3 的反射，而不包括最短射程rl的反射），該光源的強度將被 提高一級（”光源中等"，圖3c)。最終，若該最短的射程信 號r 1之反射r' 1被偵測到，該光源將轉向其最亮等級（"光源 強”，圖3d)。應注意的是信號與亮度等級之間的關係是可 以顛倒的。同樣地’該光源之起始狀態可為不同的。 現將參考圖4描述根據本發明之另一實施例之發光裝置 10’。該發光裝置10’是以圖1之發光裝置為基礎的，但額外 地包括連接至該控制單元14之至少一第二光源12b及一第 二偵測器16b。該第二光源12b及偵測器1 6b，在此被配置 於該光源12及彳貞測器1 6之旁邊，類似於以上描述之光源^ 2 130916.doc -13- 200913781 及偵測器1 6之操作’但有一不同的照明區域2仙及偵測器 區域22b。該等照明區域2〇、20b可分別與該等對應之偵測 器區域22、22b重疊，同時在該偵測器區域22及偵測器區 域22b之間有一稍微的重疊區域，而且在該等照明區域2〇 及20b之間亦有一稍微重疊區域。 在操作期間’ 一物體18，舉例而言一人員，例如自左側 進入s玄偵測器區域22 ’將經由該至少一光源丨2被照亮。當 該人員18移動更近時，該光源12之亮度將改變，較佳地為 增強。隨著該人員如圖4所顯示進一步移動至右側時，該 亮度隨著距離之增加最終將開始降低。然而，在谓測器區 域22及22b之間的重疊區域上，該人員18將同樣經由該第 二偵測器16b而被偵測，因此啟動該第二光源丨2b。隨著人 貝1 8繼續向右移動’他或她將離開該第一摘測器區域2 2， 導致該第一光源最終將被關閉（假若無其他物體被谓測 到）’而在該第二债測器區域22b ’該光源1 〇b之強度將經 由控制單元14而被調整，類似於如上所述相對於在該第二 偵測器16b與該人員1 8之間的當前距離。最終，當該人員 1 8離開該偵測器區域22b至右側時，同樣該第二光源12b可 被關閉。因此，在該發光裝置10'内’該物體之移動受到追 蹤而該輸出光因此被調整。 應注意的是進一步光源及偵測器可被提供給下述覆蓋較 大區域之移動。 應進一步注意的是圖4之發光裝置不需要取決於距離調 整亮度便可被具體實現。反之’該等光源可”數位化地，，被 130916.doc • 14 - 200913781 開啓/關閉或在兩個等級 之間破切換。這樣一發光裝置或 系統可隨之包括一適以偵 、出現在—第一區域内的一物體 第债測器；一適以读測出jg y·地 _ 現在一第二區域内的一物體 第偵測态’至少一與該第—偵測器相關之第一光源； 至:、-與該第二偵測器相關之第二光源；及一控制單元， 其疋適以·在一物體經由马' 笛 . ^ 田该第一偵測器被偵測到時啟動該 第一光源及在-物體經由該第二偵測器被谓測到時啟動該U 200913781 was enhanced. If the distance is increased again thereafter, the brightness is thus increased or decreased. At this most recent price range, the light source 12 can be set to the lowest brightness level (or completely turned off) or at the highest brightness level, again depending on the application. Although no distance is detected indicating that there is no object 18 in the detection area 2, the light source 12 can remain on the setting level for a predetermined period of time from the last detection time, and then is turned off or returned to A predetermined level, if no other distance is detected. Therefore, the light source 12 can remain turned on even if the object temporarily exits the detection area. Figure 2 summarizes the method of operation or control of the illumination device 1A including steps S1_S3. It should be noted that the presence of the object can only be indicated as an additional product of a distance measurement. If no distance is detected (for example, no object or object is outside the range), no object exists. On the other hand, if a distance is detected, an object exists. Similarly, the action can be detected: if the detected distance changes, there is action, and if the detected distance is constant, there is no action. Motion detection capabilities according to known techniques (e.g., PIR) can also be added to the detector 16 to enhance the presence/motion detection. A particular distance detector 16 suitable for use in the above described illumination device will be described with reference to Figures 3a-3d. The distance detector 16 includes a transmitter 24 (e.g., an IR LED) and an IR receiver 26. The helium transmitter is an IR signal suitable for transmitting various ranges. Here, two different signals each having a specific range (rX) can be transmitted, but the number of such ranges can vary depending on the resolution of the demand. "The signals having different ranges can be applied to the ir LED 24 The current is generated by pulses of different current levels, wherein the highest current 130916.doc -12·200913781 is applied to the signal having the longest range and the lowest current level corresponds to the signal having the shortest range. The transmitted signal can be reversed by the object, and depending on which reflected L number is received by the IR receiver 26, the distance to the object can be advantageously determined, and the light source 12 to be placed again One particular brightness or darkness level is associated with each different signal. For example, assume three different signal ranges rl_r3 as discussed above. Rl is the shortest range, r2 is the medium range, and r3 is the longest range. It is also assumed that the light source is initially turned off. If the unreflected signal is detected (i.e., the object 18 is outside the longest range r3), the source will remain off (Fig. 3a). If the reflection r,3 of the longest range signal r3 is detected (but not any short range reflection), the light source is turned from the full off to the darkest level (, the source is weak " 3b). In addition, if the reflection r'2 of the medium range signal r2 is detected at this time (also including the reflection of the longer range r3 without including the reflection of the shortest range rl), the intensity of the source will be increased by one level ("light source" Medium ", Figure 3c). Finally, if the reflection r'1 of the shortest range signal r 1 is detected, the source will turn to its brightest level ("strong source", Figure 3d). It should be noted that the relationship between the signal and the brightness level can be reversed. Similarly, the initial state of the light source can be different. A light-emitting device 10' according to another embodiment of the present invention will now be described with reference to FIG. The illumination device 10' is based on the illumination device of Figure 1, but additionally includes at least one second light source 12b and a second detector 16b coupled to the control unit 14. The second light source 12b and the detector 16b are disposed adjacent to the light source 12 and the detector 16 respectively, similar to the light source ^ 2 130916.doc -13- 200913781 and the detector 1 described above. The operation of 6 'but has a different illumination area 2 sen and detector area 22b. The illumination areas 2〇, 20b may overlap with the corresponding detector areas 22, 22b, respectively, while having a slight overlap between the detector area 22 and the detector area 22b, and There is also a slight overlap between the illumination areas 2A and 20b. During operation, an object 18, for example a person, such as from the left into the sinister detector region 22', will be illuminated via the at least one source 丨2. As the person 18 moves closer, the brightness of the light source 12 will change, preferably enhanced. As the person moves further to the right as shown in Figure 4, the brightness will eventually begin to decrease as the distance increases. However, on the overlapping area between the pre-tester areas 22 and 22b, the person 18 will also be detected via the second detector 16b, thus activating the second source 丨2b. As the person 1 8 continues to move to the right 'he or she will leave the first picker area 2 2, causing the first light source to eventually be turned off (if no other object is said to be detected)' The intensity of the light source 1bb will be adjusted via the control unit 14, similar to the current distance between the second detector 16b and the person 108 as described above. Finally, when the person 108 leaves the detector area 22b to the right, the second light source 12b can also be turned off. Therefore, the movement of the object in the illuminating device 10' is tracked and the output light is thus adjusted. It should be noted that further light sources and detectors can be provided for movements that cover a larger area as described below. It should be further noted that the illumination device of Figure 4 can be embodied without the need to adjust the brightness depending on the distance. Conversely, 'these light sources can be digitally turned on/off by 130916.doc • 14 - 200913781 or switched between two levels. Such a lighting device or system can include a suitable detective - an object in the first region of the debt detector; a suitable reading to detect jg y · ground _ now a second region of an object detection state 'at least one associated with the first detector a light source; to: - a second light source associated with the second detector; and a control unit adapted to be detected by an object in the object via a horse's flute. Activating the first light source and starting the object when the object is detected by the second detector
第二光源。這樣—裝置或系統可有利地追縱及照明一移動 物體’諸如一人昌〇般你丨； ^ 員舉例而§，啟動在此意指開啓光源或 改變（較佳地增強）光源之亮度。 如上討論之本發光裝置較佳地為光是藉由該至少一光源 被引進於-光導内之—類型，較佳地為—薄光導板。在該 光導内，該光在其藉由複數個外部耦合結構物而被提取之 刖可被混合。至此，該至少一光源可為複數個LED，尤其 是被配置在該光導内之側發光LED ’而該外部耦合結構可 為用於與該光導板平面垂直地提取光之傾斜的反射物。 本發光裝置之應用包含多種室内及室外照明系統，尤其 是需求及受益於自動偵測特徵之系統。 熟習此項技術者意識到本發明絕非僅限於上述描述之較 佳實施例。反之，在附加請求項之範疇内可做多種修飾及 變化。 【圖式簡單說明】 本發明之此等及其他態樣參考顯示本發明之當前較佳實 施例之附加圖式將更詳細地被描述。 130916.doc -15- 200913781 方塊 流程 —例 示意 圖1是根據本發明之一實施例的—發光裝置之_ 圖。 圖2是描述一種用於控制圖〗之發光裝置的方法之_ 圖。 圖3a-3d示意地顯示可被使用於圖1之發光裝置中以 示性偵測器之一例示性操作。 圖4是根據本發明之另一實施例的發光裝置之— 圖。 【主要元件符號說明】 10 發光裝置 12 光源 12b 第二光源 14 控制單元 16 偵測器 16 ' 偵測器 16b 第二偵測器 18 物體 20 偵測器區域 20b 照明區域 22 照明區域 22b 偵測器區域 24 傳送器 26 接收器 130916.doc • 16·The second light source. Thus, the device or system can advantageously track and illuminate a moving object, such as a person, as in the case of a person; exemplified by §, the activation here means turning on the light source or changing (preferably enhancing) the brightness of the light source. Preferably, the present illumination device as discussed above is of the type in which light is introduced into the light guide by the at least one light source, preferably a thin light guide. Within the light guide, the light can be mixed as it is extracted by a plurality of externally coupled structures. To this end, the at least one light source can be a plurality of LEDs, especially the side-emitting LEDs disposed in the light guide, and the external coupling structure can be a reflector for extracting the tilt of the light perpendicular to the plane of the light guide. Applications for the illuminating device include a variety of indoor and outdoor lighting systems, particularly systems that require and benefit from automatic detection features. Those skilled in the art will recognize that the present invention is by no means limited to the preferred embodiments described above. Conversely, many modifications and variations are possible within the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS These and other aspects of the present invention will be described in more detail with reference to the accompanying drawings in which FIG. 130916.doc -15- 200913781 Block Flow - Example Schematic Figure 1 is a diagram of a light emitting device in accordance with an embodiment of the present invention. Figure 2 is a diagram for describing a method for controlling a light-emitting device of the drawing. Figures 3a-3d schematically illustrate an exemplary operation of one of the illustrative detectors that can be used in the illumination device of Figure 1. Figure 4 is a view of a light emitting device in accordance with another embodiment of the present invention. [Main component symbol description] 10 illuminating device 12 light source 12b second light source 14 control unit 16 detector 16 'detector 16b second detector 18 object 20 detector area 20b illumination area 22 illumination area 22b detector Area 24 Transmitter 26 Receiver 130916.doc • 16·