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TW201201629A - Lighting device - Google Patents

Lighting device Download PDF

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Publication number
TW201201629A
TW201201629A TW100107622A TW100107622A TW201201629A TW 201201629 A TW201201629 A TW 201201629A TW 100107622 A TW100107622 A TW 100107622A TW 100107622 A TW100107622 A TW 100107622A TW 201201629 A TW201201629 A TW 201201629A
Authority
TW
Taiwan
Prior art keywords
light
power
sensor
emitting element
lighting device
Prior art date
Application number
TW100107622A
Other languages
Chinese (zh)
Inventor
Michel Cornelis Josephus Marie Vissenberg
Ludo Haenen
Original Assignee
Koninkl Philips Electronics Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW201201629A publication Critical patent/TW201201629A/en

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Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/58Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving end of life detection of LEDs
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10Controlling the intensity of the light
    • H05B45/12Controlling the intensity of the light using optical feedback
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10Controlling the intensity of the light
    • H05B45/18Controlling the intensity of the light using temperature feedback

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

A lighting device is provided with an energy (or energy efficiency) indicator that communicates the performance of the lighting device. A lumen contribution of the light emitted by a light emitting element of the lighting device the power consumed by the light emitting element is sensed. A relation between the sensed lumen contribution and the sensed power consumption is estimated and an indication of the estimated relation is provided. Such a lighting device allows for visual inspection of the lighting device to check whether cleaning, maintenance, or replacement is needed.

Description

201201629 六、發明說明: 【發明所屬之技術領域】 本發明大體上係關於一種照明裝置,且尤其係關於一種 經配置以指示電力與流明之間之一關係的照明裝置。 【先前技術】 月量效率已變得愈來愈重要。具有效能量效率的建築物 5又计可包含使用低成本偵測器以當區域並未被佔據時關閉 照明。再者,可使用連結至一建築物之照明方案的日光感 測器而監測光輸出位準’以開啟/關閉照明或將該照明調 暗至預定義位準,以考慮自然光且因此減小能量消耗。儘 管此等潛在能量節省及增長的環境問題已在世界上存在許 多年’但是一般仍需要經改良電裝置及經改良照明裝置。 數位照明技術,即,基於半導體光源(諸如發光二極體 (LED))之照明的到來對傳統螢光燈、HID燈及白熾燈提供 一可行替代。LED之功能優點及利益包含高的能量轉換及 光學效率、穩健性、較低操作成本及許多其他優點及利 益。LED之較小尺寸、長操作壽命、低能量消耗及耐久性 使得其等在多種照明應用中係一較好選擇。 根據許多不同 EU指令(92/75/CEE、94/2/CE、95/12/CE、 96/89/CE、2003/66/CE,等等),一般的電子設備且尤其照 明裝置在供出售或出租時必須具有清晰顯示的一 EU能量 標籤。設備之能量效率係依照標籤上從A至g的一組能量 效率類別而評定,A為最大能量效率,G為最小效率。該 等標籤亦給消費者提供其他有用資訊。該資訊亦應以目錄 154328.doc 201201629 網站上。然而,儘 ,在貫際操作期間 提供,且由網際網路零售商包含在其等 管該能量標籤可預知該照明裝置的行為 可能仍難以監測該等照明裝置之行為。 【發明内容】 考慮到上文’本發明之發明者已意識到關於電子設 :數:時間變化。該等參數可因該等電子設備之機械組 、電組件及/或光學組件#疲勞(fatigue) '㈣電子設備 的用途、累積於該等電子設備内或該等電子設備上的=垢 及類似物而變化。因此’能量標籤可能不提供關於能量消 耗及/或流明輸出的料資訊,目此使得照明裝置較難龄 測。 现 本發明之一目的係克服此問題’且提供一經改良照明裝 置,其經配置以提供電力消耗及/或流明輸出的一指示。、 一般而言,上文之目的係由根據附上的獨立技術方案的 -照明裝置而達成。根據本發明之一第一態樣,此目的及 其他目的係由一照明裝置達成,該照明裝置包括:一發光 凡件;一光感測器,其經配置以感測由該發光元件發射之 光的一流明貢獻;一估計器,其經配置以估計所感測之流 明貢獻與所感測之電力消耗之間之一關係;及一指示器, 其經配置以從該估計器接收所估計之關係,並且輸出該估 δ十之關係的一指示。 有利地,此一照明裝置不僅提供(該發光元件之)電力消 耗及/或流明輸出的一指示,而且亦提供驅動器之電力消 耗及總消耗。電力感測器可經配置以僅感測由該發光元件 154328.doc 201201629 消耗之電力,或其可經配置以亦藉由感測由該發光元件之 驅動器消耗之電力而感測由該照明裝置消耗之總電力。藉 此’由忒發光兀件消耗之電力可與由整個照明裝置消耗之 電力相比較,藉此提供該發光元件之效率的一指示。 根據-實施例,該照明裝置進一步包括一比較器,其經 配置以使所估計之關係與流明貢獻與電力消耗之間的二預 定關係關聯,並且將所關聯之關係提供給該指示器。藉 此,所估計之關係可限定於一預定間隔内,藉此避免所^ 計之關係之上溢(overflow)及/或下溢(underfl〇w)。此可改 良該估計之關係的指示。 根據一實施例,該照明裝置進一步包括經配置以接收該 預定關係的一通信介面。因此’該指示器可提供一信號, δ亥^號可直接由人彳貞測到及/或該信號可被遠端地發送至 一中央位置。藉此’可更新該預定關係。, 根據一實施例’該光感測器係遠離該發光元件而放置。 藉此’可在意欲使用該照明裝置之光的一預定位置處估計 流明輸出。此光感測器可定位於該發光元件之外,但仍接 近此發光元件,以最小化周圍物件及/或其他光的影響。 利用LED源,可將一獨特調變之光信號疊加至所發射之 光,藉此可分離所發射之光及周圍光的影響。 根據一實施例,該光感測器包括經配置以估計由該發光 元件發射之光的一光電二極體。此一光電二極體可改良該 估計之光的精確性。 根據一實施例,該照明裝置進一步包括經配置以控制由 154328.doc 201201629 »亥發光兀件消耗之電力的—控制器。該控制器可促進對該 照明裝置之改良控制。 根據f施例’該照明裝置可進一步包括麵接至該光感 測器及該控制器的光電回饋電路(ph〇t〇 feedback circuitry)。該光電回饋電路可使得該發光元件以大體上怪 定的流明輸出而操作。 根據一實施例’該控制器係耦接至該電力感測器。該電 力感測器可使得該發光元件以一大體上值定的電力位準操 作。若裝置可遠端地控制,則可在外部設定一怪定電力位 準或一恆定光位準是否較佳。 根據-實施例’該照明裝置可進一步包括耦接至該電力 感測器且經配置以感測該發光元件之一溫度的一溫度感測 器。藉此,可從所感測之溫度估計所感測之電力,因此改 良所感測之電力之精確性。 根據一實施例,該照明裝置進一步包括耦接至該發光元 件的一散熱器。可從該散熱器量測該溫度,因此改良所感 測之溫度之精確性。 一般而[上文之目的得、由根據附上之獨纟技術方案的 一照明器而達成。根據本發明之一第二態樣,此目的及其 他目的係由包括如上文所揭示之至少一個照明裝置的照明 器而達成。 根據一實施例,該照明器進一步包括—外殼。該指示器 可整合於該外殼内。 應注意,本發明係關於技術方案中敘述之特徵的所有可 154328.doc • 6 - 201201629 能組合。 【實施方式】 現將參考展示本發明之實施例的附圖而更詳細描述本發 明之此態樣及其他態樣。 下文之實施例係經由實例提供,使得此揭示内容將為詳 盡及完整的’且將本發明之範圍完全轉達給熟習此項技術 者。例如’本文中討論之多種概念可適當地實施於具有不 同形狀因數及光輸出的多種照明裝置及照明器中。相同數 字貫穿全文指相同元件。 圖1繪不根據一實施例之一照明裝置1〇2。術語「照明裝 置」思指用於在一室内或室外空間提供光以照亮該室内或201201629 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention generally relates to a lighting device, and more particularly to a lighting device configured to indicate a relationship between power and lumens. [Prior Art] Monthly efficiency has become more and more important. Energy efficient building 5 can again include the use of a low cost detector to turn off the illumination when the area is not occupied. Furthermore, the light output level can be monitored using a daylight sensor coupled to a building's lighting scheme to turn the illumination on/off or dim the illumination to a predefined level to account for natural light and thus reduce energy. Consumption. Although these potential energy savings and increased environmental issues have existed in the world for many years, there is still a general need for improved electrical devices and improved lighting devices. Digital lighting technology, i.e., illumination based on semiconductor light sources, such as light emitting diodes (LEDs), provides a viable alternative to conventional fluorescent, HID, and incandescent lamps. The functional advantages and benefits of LEDs include high energy conversion and optical efficiency, robustness, low operating costs and many other advantages and benefits. The smaller size, long operating life, low energy consumption and durability of LEDs make them a better choice for a variety of lighting applications. According to many different EU directives (92/75/CEE, 94/2/CE, 95/12/CE, 96/89/CE, 2003/66/CE, etc.), general electronic equipment and especially lighting devices are available. A EU energy label must be clearly displayed when sold or rented. The energy efficiency of the equipment is assessed according to a set of energy efficiency categories from A to g on the label, A being the maximum energy efficiency and G being the minimum efficiency. These labels also provide consumers with other useful information. The information should also be on the website 154328.doc 201201629. However, it may be difficult to monitor the behavior of the lighting device as it is provided during the inter-operational operation and is included by the Internet retailer to wait for the energy tag to predict the behavior of the lighting device. SUMMARY OF THE INVENTION In view of the above, the inventors of the present invention have realized that the electronic device: number: time variation. The parameters may be due to the mechanical group, the electrical component and/or the optical component of the electronic device, the use of the electronic device, the accumulation of the scale in the electronic device or the like, and the like. Change with things. Therefore, the energy label may not provide information on the energy consumption and/or lumen output, which makes the lighting device more difficult to measure. It is an object of the present invention to overcome this problem' and provide an improved illumination device that is configured to provide an indication of power consumption and/or lumen output. In general, the above objects are achieved by a lighting device according to the attached independent technical solution. According to a first aspect of the present invention, the object and other objects are achieved by an illumination device comprising: a light emitting device; a light sensor configured to sense emission by the light emitting element a first-rate contribution of light; an estimator configured to estimate a relationship between the sensed lumen contribution and the sensed power consumption; and an indicator configured to receive the estimated relationship from the estimator And output an indication of the relationship of the estimated delta. Advantageously, the illumination device not only provides an indication of power consumption and/or lumen output (of the illumination element), but also provides power consumption and total consumption of the driver. The power sensor can be configured to sense only the power consumed by the light-emitting element 154328.doc 201201629, or it can be configured to sense the power consumed by the driver of the light-emitting element as well as by sensing the power consumed by the driver of the light-emitting element Total power consumed. The power consumed by the illuminating element can be compared to the power consumed by the entire illuminating device, thereby providing an indication of the efficiency of the illuminating element. According to an embodiment, the illumination device further includes a comparator configured to associate the estimated relationship with a second predetermined relationship between the lumen contribution and the power consumption and to provide the associated relationship to the indicator. By this, the estimated relationship can be limited to a predetermined interval, thereby avoiding overflow and/or underflection of the relationship. This may improve the indication of the relationship of the estimate. According to an embodiment, the illumination device further includes a communication interface configured to receive the predetermined relationship. Thus, the indicator can provide a signal that can be directly detected by a person and/or the signal can be transmitted remotely to a central location. By this, the predetermined relationship can be updated. According to an embodiment, the photosensor is placed away from the light emitting element. Thereby, the lumen output can be estimated at a predetermined position of the light intended to use the illumination device. The light sensor can be positioned outside of the light emitting element but still adjacent to the light emitting element to minimize the effects of surrounding objects and/or other light. With the LED source, a uniquely modulated light signal can be superimposed on the emitted light, thereby separating the effects of the emitted light and the surrounding light. According to an embodiment, the photo sensor includes a photodiode configured to estimate light emitted by the illuminating element. This photodiode can improve the accuracy of the estimated light. According to an embodiment, the illumination device further includes a controller configured to control power consumed by the 154328.doc 201201629. The controller can facilitate improved control of the lighting device. According to an embodiment, the illumination device can further include a photoelectric feedback circuit (ph〇t〇 feedback circuitry) that is coupled to the photosensor and the controller. The optoelectronic feedback circuit allows the illuminating element to operate with a substantially ambiguous lumen output. According to an embodiment, the controller is coupled to the power sensor. The power sensor allows the light emitting element to operate at a substantially constant power level. If the device is remotely controllable, it is better to set a strange power level or a constant light level externally. The illumination device can further include a temperature sensor coupled to the power sensor and configured to sense a temperature of one of the light emitting elements. Thereby, the sensed power can be estimated from the sensed temperature, thus improving the accuracy of the sensed power. According to an embodiment, the illumination device further includes a heat sink coupled to the light emitting element. The temperature can be measured from the heat sink, thus improving the accuracy of the sensed temperature. Generally, [the above purpose is achieved by an illuminator according to the attached technical solution. According to a second aspect of the invention, this object and other objects are achieved by an illuminator comprising at least one illumination device as disclosed above. According to an embodiment, the illuminator further comprises an outer casing. The indicator can be integrated into the housing. It should be noted that the present invention can be combined with all of the features described in the technical solutions 154328.doc • 6 - 201201629. [Embodiment] This aspect and other aspects of the present invention will now be described in more detail with reference to the accompanying drawings that illustrate embodiments of the invention. The following examples are provided by way of example, and the disclosure is to be construed as a For example, the various concepts discussed herein can be suitably implemented in a variety of lighting devices and illuminators having different form factors and light outputs. The same numbers refer to the same elements throughout the text. Figure 1 depicts a lighting device 1〇2 not according to an embodiment. The term "lighting device" is intended to provide light in an indoor or outdoor space to illuminate the room or

,,刃叫守哥。隹此門又甲一室外空間,, the blade is called the guardian.隹This door and an outdoor space

園、一街道之一部分等等。 圖1之該照明裝置102包括一發光元件1〇4。一般 該照明裝置102可包括多於—個發光元件刚 。一般而言,Garden, part of a street, etc. The illumination device 102 of FIG. 1 includes a light-emitting element 1〇4. Typically, the illumination device 102 can include more than one light-emitting element. In general,

改良一照明器及/或照明裝置的能量效率, 者特徵。藉由 可減小能量成 154328.doc 201201629 本,且可減小c〇2排放。因此,一照明器之能量效率的管 理具有經濟觀點以及環境觀點兩者。 一般而言,相較於其他照明裝置,基於LED之照明裝置 或照明器具有一較長壽命,但隨壽命在流明輸出上展現一 連續的下降。因此’該等照明裝置之效率或功效能量消耗 隨時間減小,此限制該等照明裝置之經濟壽命。若保持光 位準恆疋,則能量消耗僅會增加。效率或功效對於所有情 況(例如’恆定光、電力及類似者)將總是減小。然而,因 為該等照明裝置仍可操作,在未實際量測的前提下,判斷 該等照明裝置的效能係較困難的。如將在下文中進一步揭 不,效率惡化之其他原因係該照明裝置之光學系統中的灰 塵及污垢。一般而言,必須定期清洗照明裝置以具有一良 好效能。 因此該照明裝置102進一步包括一光感測器i06。該光感 測器106經配置以感測由該發光元件1 〇4發射之光的流明貢 獻。即,該光感測器106感測由該發光元件1 〇4發射之光的 某一光通量。此外’儘管以流明為單位的光通量可為相同 的’但是由該發光元件發射之光的色溫可因溫度、老化效 應而變化。該光感測器可因此經配置以感測色溫及流明貢 獻。一般而言,該光感測器可包括經配置以估計由該照明 裝置之該發光元件所發射之光的任意適宜的光偵測器。特 定言之’該光偵測器可為一光電偵測器,諸如一光電二極 體。光電二極體可取決於操作模式而將感測之光(流明貢 獻及/或色溫)轉換為電流或電壓。該光感測器106可包括一 154328.doc 201201629 LED。一 LED可使用為一光電二極體,用於光偵測以及光 發射。或者,該光感測器106可包括光電阻器或光敏電阻 器(LDR),其等根據感測之光強度而改變電阻。亦或者’ 該光感測器106可包括光伏打電池或太陽能電池,當被照 明時其等產生一電壓且供應一電流。因此,在感測該發光 元件104之一光通量時,該光感測器1〇6將該感測之光通量 轉換為一對應電信號,其中該電信號指示所感測之光通 量。例如,該電信號可與所感測之光通量成比例。利用含 有至少3個感測器(有利地為4個感測器)之一色彩感測器, 可量測色彩座標。 出於此揭示内容之目的’術語「色彩」可與術語光譜交 換使用。然而’術語「色彩」一般主要用於指可由一觀測 者感知之賴射的一性質(然而此用法並不意欲限制此術語 之範圍)。相應地,術語「不同色彩」暗指具有不同波長 为里及/或頻寬的多個光譜。亦應瞭解,術語「色彩」可 連同白光及非白光兩者一起使用。術語「色溫」在本文中 一般連同白光一起使用,然而此用法並不意欲限制此術語 之範圍。色溫基本上指白光的一特定色彩含量或色調(例 如紅色、藍色)。一 '给定輻射樣本之色溫習知上係根據 輻射基本上與所討論之輻射樣本相同羌譜的一黑體輻射體 之/皿度(以開氏度(K)為單位)而特徵化。 為能夠發射該發光元件1〇4係由一電源供應器供 電…般而言,該電源供應器包含其上安置有電力管理及 驅動器電路組件以驅動及控制該發光元件1〇4的—個或多 154328.doc 201201629 個印刷電路板。該照明裝置102進一步包括一電力感測器 108。該電力感測器108經配置以感測由該發光元件1〇4消 耗之電力。有利地,該電力感測器108係電耦接至該發光 元件104。該電力感測器108可從由該發光元件消耗之一操 作電流而感測由該發光元件消耗之電力。或者,該電力感 測器1 0 8可從跨§亥發光元件而量測的一操作電壓而感測由 該發光元件消耗之電力。該消耗之電力可從該發光元件 104處(直接)感測’而並不直接從該電源供應器處感測(儘 管此亦可行)。此在該電源供應器與該發光元件1〇4之間電 力洩漏的情況中可為有利的。該發光元件及該電源供應器 之電力消耗亦可分開感測及/或量測。此可為有利的,因 為此可使得系統能夠指示(尤其藉由提供一維修信號)發光 元件或電源供應器電子器件需要修理或更換。 圖2a繪示根據一實施例之一照明裝置2〇2A。該照明裝置 202A可為一照明器230之一部分。類似於圖i之該照明裝置 102,該照明裝置202A包括一發光元件104、一光感測器 106、一電力感測器108 ' —估計器11〇及一指示器112。一 溫度感測器224可提供於該照明裝置202A中。此一溫度咸 測器可實現感測該照明裝置202A之操作溫度。特定言之, 配置以感/則δ亥發光元件之一溫度的該溫度感測器可經耗 接至該電力感測器10 8。藉此,所感測之電力可從所織測 之溫度估計。此外’此一溫度感測器可促進控制該照明带 置202Α »該溫度感測器可安裝於該發光元件i 〇4中,戈可 安裝於任意其他適宜位置’以一般實現該照明裝置2〇2a之 Ι 54328.doc • ΙΟ 201201629 溫度的判定及尤其實現該發光元件104之溫度的判定。該 溫度感測器224可經連接至該電源供應器及控制電子器件 以提供電連接至該溫度感測器。 為估計電力消耗,考慮發光元件/照明裝置/照明器與其 周圍之間之溫差來代替該發光元件/照明裝置/照明器之絕 對溫度可為有利的。因此,若接近該光源之溫度可與該照 明器之周圍(即,外部)的溫度相比較,則可改良電力消耗 估計。或者,考慮該發光元件/照明裝置/照明器之絕對溫 度可指示該發光元件/照明裝置/照明器過熱。 該照明裝置可進一步包括一散熱器226。該散熱器226可 經耦接至該發光元件104。藉此,該發光元件之溫度可從 該散熱器處量測。此外,一熱連接器可安置於該發光元件 與該散熱器之間以在其等之間提供導熱性,以促進熱消 散》該溫度感測器224可接著安裝於該散熱器中之一開口 或凹口内,其可緊接該散熱器而安裝,或其可安置於該熱 連接器之一凹口内β 該照明裝置102、202Α進一步包括一估計器11〇<>該估計 器經配置以接收指不所感測之流明貢獻的信號及指示所感 測之電力消耗的信號。根據實施例,該估計器從該光 感測器接收指不所感測之流明貢獻的信號及從該電力估計 器接收指示所感測之電力消耗的信號。該估計器u〇可從 該等接收之信號估計所感測之流明貢獻與所感測之電力消 耗之間的關係。例如,該估計可與所感測之流明成正比, 且與所消耗之電力成反比。藉此,該估計器⑽可提供指 154328.doc •11· 201201629 不/肖耗每瓦特所發射之光诵I夕县认, 尤逋量之量的信號,藉此一般提供 該照明裝置之能晉;^ , 1之此量效率的估計,且尤其是提供該發光元件 之旎罝效率的估計。換由 、Ί居說’邊估計器可對所估計之關 係=供以ww為單位的估計。該估計器u〇可在操作期間 連十該關係,在操作期間週期性地估計該關係,或僅 在一限制時間(例如當該昭 …、月裝置開啟時)估計該關係。在 該照明裝置開啟之德乃/七 曼及/或在亦可決定熱效率的某一穩定 時間之後,可立刻獲得詈 予重劂及/或估計。該穩定時間一般 可取決於該照明裝置之皆擁 之貫體組件,且尤其取決於該發光元 件之實體組件。該估計器 窃了赏施為一電組件、一機械組件 或一電機組件。該仕斗$ > , °十益之功旎性亦可實施於一控制器 中。 該照明裝置⑽、觀進一步包括一指示㈣。該指示 經配置以從該估計器U〇接收所估計之關係。在接收該 估冲之關係時,该指示器112可輸出該估計之關係的指 不該估。十器可在操作期間連續輸出該關係的指示,在操 作期間週期性輸出該關俜的 « 1尔妁扣不,或僅在一限制時間(例 如當该照明裝置開啟時)輸出該關係的指示。該照明裝置 可進步包括t匕較益216 〇該比較器216經配置以使該估 計之關係關聯於流明貢獻與電力消耗之間的預定關係,且 將該關聯之關係提供給該指示器112。藉此可容易地將該 估計之關係視覺化。例如,該比較器216可按比例調整該 估计之關係,使得其係限制於一預定間隔内。特定言之, 該比較器216可使該估計之關係依_線性或非線性函數而 154328.doc •12· 201201629 定,藉此將該估計之關係變換為(例如)—對數標度或類似 標度。 因此,藉由該指示器U2,可從該照明裝置l〇2、2〇2A 及/或照明器230輸出該估計之關係。該照明裝置及/或照明 器之一使用者及/或觀看者可藉此接收資訊,諸如關於該 估計之關係的視覺回饋。該照明器23〇可包括—外殼232, 且該指示器112可整合於該外殼232内。例如,該外殼(之 邛刀)之色彩可隨該估計之關係而變化(見下文)。圖h至 圖3cH會示根據實施例之照明器23〇。根據實施例,該指示 器112係一使用者介面228的一部分。該使用者介面228一 般可為一使用者提供關於該照明裝置1〇2、2〇2a之能量效 率的視覺回饋,且尤其是提供關於該發光元件】〇4之能量 效率的視覺回饋。經由該使用者介面228及/或外殼232, 一使用者可藉此接收指示效率等級的信號。該使用者介面 可提供為一個或多個光源。可藉由彩色指示器LED、小型 顯示器(例如,LCD、OLED)或含有電致變色、光致變色或 熱致變色之材料的帶來指示該效率。在後者情況中,該帶 材料可同時用作一光感測器及一指示器。如圖3 a中,該外 殼232可具有一個或多個色彩可變之指示器燈112A。如圖 3b中’該外殼232可具有一色彩可變之指示器帶112Β。如 圖3c中’該外殼232可具有一色彩可變之指示器緣112C。 如圖3d中,該外殼232可為一色彩可變之指示器外殼 112D 〇 該使用者介面228及/或外殼232可經配置以取決於從該 154328.doc -13· 201201629 指示器接收之估 _ uT您知不而以一不同色彩輸出光。高能量 效率可與一綠色氺知姐 匕尤相關聯;中間能量效率可與一橙色光相 關聯;且低能量效率 _ 双丰可與一紅色光相關聯。在此内文中, 高能量效率可;^ A , 马5亥發光元件之初始效率之約^00。/〇至 70〇/〇 ;中間能量效率可。七 双午』視為初始效率之約75%至50% ;且Improving the energy efficiency of a luminaire and/or lighting device. By reducing the energy to 154328.doc 201201629, and reducing c〇2 emissions. Therefore, the management of the energy efficiency of a luminaire has both an economic point of view and an environmental point of view. In general, LED-based lighting fixtures or illuminators have a longer life than other lighting fixtures, but exhibit a continuous drop in lumen output over their lifetime. Thus, the efficiency or efficacy energy consumption of such lighting devices decreases over time, which limits the economic life of such lighting devices. If the light level is kept constant, the energy consumption will only increase. Efficiency or efficacy will always decrease for all situations (e.g. 'constant light, electricity and the like). However, since the lighting devices are still operable, it is difficult to judge the performance of the lighting devices without actual measurement. As will be further clarified below, other causes of deterioration in efficiency are dust and dirt in the optical system of the lighting device. In general, the lighting fixture must be cleaned regularly to have a good performance. Therefore, the illumination device 102 further includes a photo sensor i06. The light sensor 106 is configured to sense a lumen contribution of light emitted by the light emitting element 1 〇4. That is, the photo sensor 106 senses a certain luminous flux of the light emitted by the light-emitting element 1 〇4. Further, although the luminous flux in lumens may be the same 'the color temperature of the light emitted by the light-emitting element may vary depending on temperature and aging effect. The light sensor can thus be configured to sense color temperature and lumen contribution. In general, the light sensor can include any suitable light detector configured to estimate the light emitted by the light emitting element of the illumination device. Specifically, the photodetector can be a photodetector such as a photodiode. The photodiode can convert the sensed light (lumen contribution and/or color temperature) into a current or voltage depending on the mode of operation. The light sensor 106 can include a 154328.doc 201201629 LED. An LED can be used as a photodiode for light detection and light emission. Alternatively, the photo sensor 106 can include a photo resistor or a photoresistor (LDR) that changes the resistance based on the sensed light intensity. Alternatively, the photosensor 106 may comprise a photovoltaic cell or a solar cell that, when illuminated, generates a voltage and supplies a current. Thus, upon sensing the luminous flux of one of the illuminating elements 104, the photosensor 〇6 converts the sensed luminous flux into a corresponding electrical signal, wherein the electrical signal indicates the sensed luminous flux. For example, the electrical signal can be proportional to the sensed luminous flux. The color coordinates can be measured using a color sensor containing at least 3 sensors (advantageously 4 sensors). For the purposes of this disclosure, the term "color" can be used interchangeably with the term spectrum. However, the term "color" is generally used primarily to refer to a property that can be perceived by an observer (however, this usage is not intended to limit the scope of the term). Accordingly, the term "different colors" implies multiple spectra having different wavelengths and/or bandwidths. It should also be understood that the term "color" can be used in conjunction with both white and non-white light. The term "color temperature" is used herein generally in conjunction with white light, however, this usage is not intended to limit the scope of the term. Color temperature basically refers to a specific color content or hue of white light (e.g., red, blue). A color temperature for a given radiation sample is conventionally characterized by a black body radiator (in degrees Kelvin (K)) that radiates substantially the same spectrum as the radiation sample in question. In order to be able to emit the light-emitting element 1 〇 4 is powered by a power supply. Generally, the power supply includes a power management and driver circuit component disposed thereon to drive and control the light-emitting element 1 〇 4 or More 154328.doc 201201629 printed circuit boards. The lighting device 102 further includes a power sensor 108. The power sensor 108 is configured to sense power consumed by the light emitting element 1〇4. Advantageously, the power sensor 108 is electrically coupled to the light emitting element 104. The power sensor 108 can sense the power consumed by the light-emitting element from an operating current consumed by the light-emitting element. Alternatively, the power sensor 108 can sense the power consumed by the light-emitting element from an operating voltage measured across the light-emitting elements. The consumed power can be sensed (directly) from the light-emitting element 104 without being directly sensed from the power supply (although this is also possible). This may be advantageous in the case of a power leakage between the power supply and the light-emitting element 1〇4. The power consumption of the light-emitting element and the power supply can also be separately sensed and/or measured. This may be advantageous as it may enable the system to indicate (especially by providing a service signal) that the lighting element or power supply electronics need to be repaired or replaced. Figure 2a illustrates a lighting device 2A2A in accordance with an embodiment. The illumination device 202A can be part of a luminaire 230. Similar to the illumination device 102 of FIG. 1, the illumination device 202A includes a light-emitting element 104, a light sensor 106, a power sensor 108', an estimator 11A, and an indicator 112. A temperature sensor 224 can be provided in the illumination device 202A. This temperature detector can sense the operating temperature of the illumination device 202A. In particular, the temperature sensor configured to sense the temperature of one of the illuminating elements can be consuming to the power sensor 108. Thereby, the sensed power can be estimated from the temperature measured. In addition, the temperature sensor can facilitate the control of the illumination strip 202. The temperature sensor can be installed in the light-emitting element i 〇 4, and the Ge can be installed at any other suitable location to generally implement the illumination device. 2a Ι 54328.doc • ΙΟ 201201629 The determination of the temperature and, in particular, the determination of the temperature of the illuminating element 104. The temperature sensor 224 can be coupled to the power supply and control electronics to provide electrical connection to the temperature sensor. In order to estimate the power consumption, it may be advantageous to consider the temperature difference between the illuminating element/illuminator/illuminator and its surroundings instead of the absolute temperature of the illuminating element/illuminator/illuminator. Therefore, if the temperature close to the source can be compared to the temperature around the (i.e., external) of the illuminator, the power consumption estimate can be improved. Alternatively, considering the absolute temperature of the illuminating element/illuminator/illuminator may indicate that the illuminating element/illuminator/illuminator is overheated. The illumination device can further include a heat sink 226. The heat sink 226 can be coupled to the light emitting element 104. Thereby, the temperature of the light-emitting element can be measured from the heat sink. Additionally, a thermal connector can be disposed between the light emitting element and the heat sink to provide thermal conductivity between them to promote heat dissipation. The temperature sensor 224 can then be mounted to one of the openings in the heat sink. Or a recess, which may be mounted next to the heat sink, or it may be disposed in a recess of one of the thermal connectors. The illumination device 102, 202 further includes an estimator 11 <> the estimator is configured A signal is received to receive a lumen contribution that is not sensed and a signal indicative of the sensed power consumption. In accordance with an embodiment, the estimator receives a signal indicative of a lumen contribution that is not sensed from the optical sensor and receives a signal indicative of the sensed power consumption from the power estimator. The estimator may estimate a relationship between the sensed lumen contribution and the sensed power consumption from the received signals. For example, the estimate can be proportional to the sensed lumen and inversely proportional to the power consumed. Thereby, the estimator (10) can provide the signal of 154328.doc •11·201201629, which does not consume the amount of light emitted by each watt, and the amount of the illuminating device, thereby generally providing the illuminating device. An estimate of the efficiency of Jin; ^, 1 and, in particular, an estimate of the efficiency of the illumination element. In the meantime, the estimator can estimate the relationship = the estimate given in ww. The estimator may continually evaluate the relationship during operation, periodically estimate the relationship during operation, or estimate the relationship only for a limited time (e.g., when the device is turned on). After the lighting device is turned on, it is immediately available and/or estimated after a certain stabilization time that also determines the thermal efficiency. The settling time may generally depend on the components of the luminaire that are common to the illuminating device, and in particular, the physical components of the illuminating element. The estimator steals the reward as an electrical component, a mechanical component or a motor component. The official $ > ° ° benefits can also be implemented in a controller. The lighting device (10), the view further includes an indication (4). The indication is configured to receive the estimated relationship from the estimator U. Upon receiving the estimated relationship, the indicator 112 may output an indication of the estimated relationship. The ten device may continuously output an indication of the relationship during operation, periodically outputting the "1" button during the operation, or outputting the relationship only for a limited time (eg, when the lighting device is turned on) . The lighting device can progress to include a comparator 216 configured to correlate the estimated relationship to a predetermined relationship between the lumen contribution and the power consumption and provide the associated relationship to the indicator 112. Thereby the relationship of the estimate can be easily visualized. For example, the comparator 216 can scale the relationship of the estimates such that they are limited to a predetermined interval. In particular, the comparator 216 may cause the relationship of the estimate to be determined by a linear or non-linear function 154328.doc • 12·201201629, thereby transforming the estimated relationship into, for example, a log scale or similar degree. Thus, by means of the indicator U2, the estimated relationship can be output from the illumination device 102, 2〇2A and/or illuminator 230. A user and/or viewer of the lighting device and/or illuminator can thereby receive information, such as visual feedback regarding the estimated relationship. The illuminator 23A can include a housing 232, and the indicator 112 can be integrated within the housing 232. For example, the color of the casing (the trowel) can vary with this estimated relationship (see below). Figures h through 3cH illustrate illuminators 23A according to an embodiment. According to an embodiment, the indicator 112 is part of a user interface 228. The user interface 228 generally provides a user with visual feedback regarding the energy efficiency of the illumination devices 1, 2, 2, 2a, and in particular provides visual feedback regarding the energy efficiency of the illumination device. Via the user interface 228 and/or the housing 232, a user can thereby receive a signal indicative of the efficiency level. The user interface can be provided as one or more light sources. This efficiency can be indicated by a color indicator LED, a small display (e.g., LCD, OLED) or a material containing electrochromic, photochromic or thermochromic materials. In the latter case, the tape material can be used as both a light sensor and an indicator. As shown in Figure 3a, the housing 232 can have one or more color-variable indicator lights 112A. The housing 232 can have a variable color indicator strip 112 in Figure 3b. The housing 232 can have a variable color indicator edge 112C as in Figure 3c. As shown in Figure 3d, the housing 232 can be a color-variable indicator housing 112D. The user interface 228 and/or housing 232 can be configured to depend on an estimate received from the 154328.doc -13·201201629 indicator. _ uT You know not to output light in a different color. High energy efficiency can be associated with a green 氺 姐 sister; intermediate energy efficiency can be associated with an orange light; and low energy efficiency _ Shuangfeng can be associated with a red light. In this context, high energy efficiency can be achieved; ^ A, the initial efficiency of the light-emitting element of the horse is about 00. /〇 to 70〇/〇; intermediate energy efficiency is OK. Seven Double Midday is considered to be approximately 75% to 50% of the initial efficiency;

低能量效率可;^炎,·,,,I t 視為初始效率之約50%至。高、中間及低 ^量效率之不同^義亦^人本發明之範圍内。例如,-發 光元/牛之壽命通常錢義為初始通量之5G%。亦可考慮(經 濟)壽命、冬止態樣。該照明裝置可進-步包括-通信介面 218,其經配置以接收上文所揭示之預定關係。此外,為 促進更新效率間隔’該照明裝置或照明器之該通信介面 。。可丄配置以接收更新之效率間隔。言亥照明纟置或照明 。β 乂具有用於基於該等接收之更新效率間隔而更新 該等效率間隔的控制構件。藉此,可實現顯示例如-特定 時間及地點之色彩(紅色-橙色 '綠色)相應規範的一指示 器。 #同樣,提供高、中間及低能量效率之指示的不同方式亦 洛入本發明之範圍内。例如,—中間效率指示,其可有利 於更換該發光元件及/或照明裝置。例如,若變換至一低 效率之-指示’可將一信號發送至一外部裝置,諸如—電 腦,以使得負責維修的人員知曉可能需要更換發光元件 及/或照明裝置。該信號可指示該發光S件及/或照明裝置 之效率,以及例如該照明裝置之一網際網路協定(ΙΡ)位 址。 154328.doc -14- 201201629 該照明裝置可進一牛勺& 乂匕括一控制器222。術語「控制 器」在本文中一般用於#、+·Μ 利 、心迷關於操作一個或多個光源的多 種裝置。一控制器222可以吝μ t j a 乂夕種方式貫施(例如,諸如用專 屬硬體)以執行在本文中 中冴响的多種功能。一「處理器」 係一控制器的一實例,1 Μ h & 只』八利用可使用軟體(例如,微程式 碼)而程式化之一個或吝彻 - 试處理器以執行在本文中討論 之多種功能。一控制 » 22可利用或不利用一處理器而實 施’且亦可實施為用於勃耔__ 、 、執仃些功此之專屬硬體與用於執 行其他功能之一處理哭以彳 ~ (例如,一個或多個程式化之微處 理器及相關聯之電路)的一細入 組合。可利用於本發明之多種 實施例中的控制器纟且侔夕杳也丨— 、,且件之貫例包含(但不限於)習知微處理 器、特定應用積體電路(繼)及場可程式化閘陣列 (FPGA)。該控制器可經配置以控制由該發光元件消耗之電 力。 該照明裝置202A可進一步包括光電回饋電路。根據實施 例,該光電回饋電路經耗接至該光感測器1()6及該控制器 222。因此,該控制器222可接收所感測之光的一指示。在 接收該指示時,該控制器222可將該指示與—個或多個預 定之光通量位準相比較。由於(例如)此—比較,該控制器 可例如經由電源供應器而調適供應至該發光元件ι〇4之電 力,使得其反映一期望之光通量位準。例如’若所感測之 光通量低於一期望位準,則可增加供應之電力,藉此增加 战贫无兀忏 ,砀元冤回饋| 路可使得該發光元件能夠以大體上恆定的流明輸出而去 154328.doc •15· 201201629 作。 藉由從例如該電源供應器接收回饋,該控制器222可使 得該發光元件104能夠以一大體上恆定的電力位準操作。 在此内文中,術語「大體上」應解譯為偏離一恆定位準並 不超過一預定量的一電力位準。該預定量可為一固定百分 比,諸如超過及/或低於該恒定電力位準的15%、1〇%或 5%。 當考慮恆定流明時,可維持一保證的照明位準(例如, 當前應用於室外街道照明的一些系統中);當考慮怪定電 力時’可實現電力消耗規則(諸如辦公室建築電力消耗規 範)。亦可想像該等兩個考慮之一組合:確保一恆定流明 輸出,直到達到一給定最大電力規範,且接著切換至恆定 電力。 該照明裝置102、202A可進一步包括一前蓋元件214。該 前蓋元件’或透鏡通常係由一清晰透明材料,諸如玻璃、 丙烯酸或聚碳酸酯製成。應注意,術語「蓋元件」可與該 發光元件104整合。在這方面’可將一白熾燈泡或螢光燈 官之玻璃蓋視為此一蓋元件。如上文所提及,該前蓋元件 可經受污垢、磨損,或其他類型之疲勞。例如,由於該發 光元件照亮,該蓋元件2 14可變黑。 可藉由指定間接對應於隨壽命變化之某一程度之通量的 空間之類型而決定污垢之影響,或若感測器係以一巧妙方 式定位,如此可用相同感測器量測相對通量輸出。圖几繪 示根據一實施例之一照明裝置2〇2B。該照明裝置2〇28可 154328.doc -16- 201201629 為一照明器230之一部分。類似於圖!之照明裝置ι〇2及圖 2a之照明裝置202A,該照明裝置202B包括—發光元件 104、一電力感測器1〇8、一估計器110及—指示器ιΐ2。該 照明裝置202B進一步包括一第一光感測器1〇6八及一第二 光感測器106B。更詳細地,該第一光感测器1〇6八可放置 於該照明器内(且接近實際發光元件),量測初始光源之通 篁,該第二光感測器106B可放置於該照明器之外,藉此估 計及/或量測該照明器之外的光。可藉此監測該發^元件 之相對光通量。分別來自第一光感測器之信號與來自第二 光感測器之信號之間的一比率提供光學系統之污垢、發黃 之蓋、反射率損耗或光學效率影響的一指示。對於典型空 間,由污垢引起之典型劣化在此項技術中係已知的。藉 此,可粗略預知該照明器之操作壽命循環期間之污垢效 應。然而,用兩個光感測器之實際量測可為可靠很多。使 用兩個光感測器亦可不僅指示污垢,而且亦指示照明器之 光學系統之總劣化。 效率之指示可取決於照明裝置之維修、發光元件上之污 垢,而且亦可取決於該照明裝置上的污垢,因為前蓋元件 214本身亦變癖。因此,藉由將該光感測器丄〇 6放置於該蓋 元件2丨4之内部或外部,可識別不同疲勞態樣。若將該光 感測器放置於該蓋元件之外部(從該發光元件角度來看), 可偵測到一髒的蓋元件。類似地,若將該光感測器放置於 該蓋元件之内部(從該發光元件1〇4角度來看),可偵測到一 較弱發光7G件。對於此等兩種情況,改良光通量的補救方 154328.doc 201201629 法係不同的;根據第一種情形,若清洗該蓋元件214,則 叮改良光通里,而根據第—種情形,若更換該發光元件 104,則可改良光通量。 該光感測器106可遠離該發光元件而放置。在此内文 中,術語「遠離」應解譯為具有以下意義:光感測器1〇6 係放置在該照明裝置102遠距離處,但仍然可操作地連接 至該照明裝置102且藉此仍為該照明裝置1〇2之一部分。若 將在某位置感測該光通量,則該光感測器之此一遠端放 置叮為有利的。隨著該光感測器與該發光元件之間之距離 U力由°玄光感測器感測之光通量亦可受自光源散發之光 影響。來自此等其他光源的影響量可藉由具有在某一方向 上敏感的光感測器而減小。或者,在總光貢獻(即,來 自該照明裝置1G2之光貢獻以及來自其他光源之光貢獻)係 受關注的情況中’該光感測器可為全向型。因此,一群組 之照明裝置之僅一個照明裝置需裝備此一光感測器。對於 —密閉照明裝置器4 ’諸如街燈器具,該光感測器之位置 可在另一位置。 總之’肖照明裝置具有用於感測消耗之電力及/或流明 輸出的構件(分別為一電力感測器及一光感測器)。在該昭 明裝置係以怪定電力使用之情況中,可監測輸出光通'量 (例如’用-光電二極體)。在該照明裝置係以恆定光通量 輸出而刼作(例如’藉由使用光電回饋)的情況中,僅監測 電力消耗可為足夠的。可直接監測效率(藉由量測電流、 電壓、光通量輪出)或間接藉由量測該發光元件之溫度或 154328.doc • 18 - 201201629 搞接至該發光元件之一散熱器之溫度而監測妹率。 該等發光元件可與呈一照明器或其他一般用途照明結構 之形式的其他組件整合。因此,一般而言,該照明裝置可 為照明器之一部分。通常,此一照明器可包括如上文所 揭示之一個或多個照明裝置。 ,習此項技術者意識到本㈣料限制於上文描述之較 佳貫施例。相& ’在隨附中請專利範圍内,許多修改及變 更係可行的。 【圖式簡單說明】 圖1續·示根據一實施例之一照明裝置. 圖2a至圖2b繪示根據實施例之—照明裝置;及 圖3a至圖3d繪示根據實施例之—照明器。 【主要元件符號說明】 102 照明裝置 104 發光元件 106 光感測器 106A 第一光感測器 106B 第一光感測器 108 電力感測器 110 估計器 112 指示器 112A 色彩可變之指示器燈 112B 色彩可變之指示器帶 112C 色彩可變之指示器緣 154328.doc •19· 201201629 112D 色彩可變之指示器外殼 202A 照明裝置 202B 照明裝置 214 前蓋元件/蓋元件 216 比較器 218 通信介面 220 光電二極體 222 控制器 224 溫度感測器 226 散熱器 228 使用者介面 230 照明器 232 外殼 154328.doc -20-Low energy efficiency can be; ^ inflammation, ·,,, I t is regarded as about 50% of the initial efficiency. The difference between high, intermediate and low efficiency is also within the scope of the invention. For example, the lifetime of a light-emitting element/bovine is usually 5G% of the initial flux. It is also possible to consider the (economic) life and winter. The illumination device can further include a communication interface 218 configured to receive the predetermined relationship disclosed above. In addition, the communication interface for the lighting device or luminaire is facilitated to update the efficiency interval. . The efficiency interval that can be configured to receive updates.言海照明装置 or lighting. β 乂 has control means for updating the efficiency intervals based on the received update efficiency intervals. Thereby, an indicator for displaying a corresponding specification of a color (red-orange 'green', for example, at a specific time and place can be realized. # Likewise, different ways of providing indications of high, intermediate, and low energy efficiency are also within the scope of the present invention. For example, an intermediate efficiency indicator that can facilitate replacement of the lighting element and/or lighting device. For example, if the transition to an inefficient - indication ' can send a signal to an external device, such as a computer, such that the person in charge of the repair knows that the lighting element and/or the lighting device may need to be replaced. The signal may indicate the efficiency of the illuminated S-piece and/or illumination device, and, for example, an Internet Protocol (ΙΡ) address of the illumination device. 154328.doc -14- 201201629 The lighting device can be integrated into a controller 222. The term "controller" is used herein generally for #,+·, and for a variety of devices for operating one or more light sources. A controller 222 can be implemented (e.g., with dedicated hardware) to perform the various functions that are sizzled herein. A "processor" is an instance of a controller, 1 Μ h & only "eight" can be programmed using a software (eg, microcode) or a hack-test processor to perform the discussion in this article. A variety of features. A control » 22 can be implemented with or without a processor' and can also be implemented for burgundy __, singularly dedicated hardware and performing one of the other functions to deal with crying~ A fine-grained combination of, for example, one or more stylized microprocessors and associated circuitry. The controllers that can be utilized in various embodiments of the present invention, and the examples of the components include, but are not limited to, conventional microprocessors, application-specific integrated circuits, and fields. Programmable gate array (FPGA). The controller can be configured to control the power consumed by the illuminating element. The illumination device 202A can further include a photoelectric feedback circuit. According to an embodiment, the photo feedback circuit is consuming to the photo sensor 1() 6 and the controller 222. Thus, the controller 222 can receive an indication of the sensed light. Upon receiving the indication, the controller 222 can compare the indication to one or more predetermined luminous flux levels. Due to, for example, this comparison, the controller can adapt the power supplied to the light-emitting element ι4, for example via a power supply, such that it reflects a desired luminous flux level. For example, 'if the sensed luminous flux is below a desired level, the supplied power can be increased, thereby increasing the leanness of the battle, and the circuit can enable the illuminating element to output at a substantially constant lumen. Go to 154328.doc •15·201201629. The controller 222 can enable the light emitting element 104 to operate at a substantially constant power level by receiving feedback from, for example, the power supply. In this context, the term "substantially" should be interpreted as a level of power that deviates from a constant level and does not exceed a predetermined amount. The predetermined amount can be a fixed percentage, such as 15%, 1% or 5% above and/or below the constant power level. When a constant lumen is considered, a guaranteed level of illumination can be maintained (e.g., in some systems currently used for outdoor street lighting); power consumption rules (such as office building power consumption specifications) can be implemented when power is considered. It is also conceivable to combine one of these two considerations: to ensure a constant lumen output until a given maximum power specification is reached, and then switch to constant power. The lighting device 102, 202A can further include a front cover member 214. The front cover member or lens is typically made of a clear transparent material such as glass, acrylic or polycarbonate. It should be noted that the term "cover element" can be integrated with the light-emitting element 104. In this respect, an incandescent bulb or a fluorescent glass cover can be considered as a cover element. As mentioned above, the front cover element can withstand dirt, abrasion, or other types of fatigue. For example, the cover member 2 14 can be blackened due to illumination of the light-emitting element. The effect of fouling can be determined by specifying the type of space that indirectly corresponds to a certain degree of flux as a function of life, or if the sensor is positioned in a subtle manner, the relative flux can be measured with the same sensor. Output. The figure shows a lighting device 2〇2B according to an embodiment. The illumination device 2 〇 28 can be 154328.doc -16- 201201629 as part of a luminaire 230. Similar to the map! The illumination device 202A and the illumination device 202A of FIG. 2a include a light-emitting element 104, a power sensor 1〇8, an estimator 110, and an indicator ΐ2. The illumination device 202B further includes a first photo sensor 1680 and a second photo sensor 106B. In more detail, the first photo sensor 1B can be placed in the illuminator (and close to the actual illuminating element), and the illuminating element of the initial light source is measured, and the second photo sensor 106B can be placed in the illuminator. In addition to the illuminator, light outside the illuminator is estimated and/or measured. The relative luminous flux of the element can be monitored thereby. A ratio between the signal from the first photosensor and the signal from the second photosensor, respectively, provides an indication of the fouling of the optical system, the yellowing of the cover, the loss of reflectivity, or the effect of optical efficiency. Typical degradation caused by fouling is typical in the art for typical spaces. Thereby, the fouling effect during the operational life cycle of the illuminator can be roughly predicted. However, the actual measurement with two photo sensors can be much more reliable. The use of two light sensors can also indicate not only dirt but also the total degradation of the illuminator's optical system. The indication of efficiency may depend on the maintenance of the lighting device, the fouling on the lighting elements, and may also depend on the dirt on the lighting device as the front cover member 214 itself also becomes sinister. Therefore, by placing the photo sensor 丄〇 6 inside or outside the cover member 2丨4, different fatigue patterns can be identified. If the photo sensor is placed outside of the cover member (from the perspective of the illumination element), a dirty cover member can be detected. Similarly, if the photo sensor is placed inside the cover member (from the perspective of the light-emitting element 1 〇 4), a weaker illuminating 7G member can be detected. For both cases, the remedy for improving the luminous flux is different. 154328.doc 201201629 The method is different; according to the first case, if the cover member 214 is cleaned, the light is improved, and according to the first case, if it is replaced The light-emitting element 104 can improve the luminous flux. The light sensor 106 can be placed away from the light emitting element. In this context, the term "away from" is to be interpreted as having the meaning that the light sensor 1 6 is placed at a remote distance from the illumination device 102 but still operatively connected to the illumination device 102 and thereby still It is part of the lighting device 1〇2. If the luminous flux is to be sensed at a certain location, then this distal placement of the photosensor is advantageous. Along with the distance between the photosensor and the illuminating element, the U flux sensed by the sensitizing light sensor can also be affected by the light emitted from the light source. The amount of influence from these other sources can be reduced by having a light sensor that is sensitive in one direction. Alternatively, the photosensor may be omnidirectional in the case where the total light contribution (i.e., the light contribution from the illumination device 1G2 and the light contribution from other sources) is of concern. Therefore, only one illumination device of a group of illumination devices is required to be equipped with such a light sensor. For a closed lighting fixture 4' such as a street light fixture, the position of the light sensor can be in another location. In summary, the "Shaw lighting device" has means for sensing the consumed power and/or lumen output (one power sensor and one light sensor, respectively). In the case where the Zhaoming device is used in a strange power source, the output light flux amount (e.g., --photodiode) can be monitored. In the case where the illumination device is operated with a constant luminous flux output (e.g., by using photoelectric feedback), it may be sufficient to monitor only the power consumption. The efficiency can be directly monitored (by measuring the current, voltage, and luminous flux) or indirectly by measuring the temperature of the illuminating element or by monitoring the temperature of a heat sink of one of the illuminating elements by 154328.doc • 18 - 201201629 Sister rate. The illuminating elements can be integrated with other components in the form of a luminaire or other general purpose lighting structure. Thus, in general, the illumination device can be part of a luminaire. Typically, such a luminaire can include one or more illumination devices as disclosed above. Those skilled in the art recognize that this (four) material is limited to the preferred embodiment described above. Many modifications and variations are possible within the scope of the patents attached to the & BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a illuminating device according to an embodiment. FIG. 2a to FIG. 2b illustrate a lighting device according to an embodiment; and FIGS. 3a to 3d illustrate a illuminator according to an embodiment. . [Main component symbol description] 102 illumination device 104 light-emitting element 106 light sensor 106A first light sensor 106B first light sensor 108 power sensor 110 estimator 112 indicator 112A color variable indicator light 112B Variable Color Indicator Band 112C Variable Color Indicator Edge 154328.doc • 19· 201201629 112D Color Variable Indicator Housing 202A Lighting Device 202B Lighting Device 214 Front Cover Element/Cover Element 216 Comparator 218 Communication Interface 220 Photodiode 222 Controller 224 Temperature Sensor 226 Heatsink 228 User Interface 230 Illuminator 232 Housing 154328.doc -20-

Claims (1)

201201629 七、申請專利範圍: 1· 一種照明裝置(102、2〇2),其包括: 一發光元件(104); 一光感測器(106) ’其經配置以感測由該發光元件發射 之光的流明貢獻; 一電力感測器(108) ’其經配置以感測由該發光元件消 耗的電力; 一估计器(110),其經配置以估計該感測之流明貢獻與 該感測之電力消耗之間的關係;及 一指不器(112),其經配置以從該估計器接收該估計之 關係,並且輸出該估計之關係的指示。 2. 如請求項1之照明裝置,進一步包括一比較器(216),該 比較器(216)經配置以使該估計之關係關聯於流明貢獻與 電力消耗之間之一預定關係,並且將該關聯之關係提供 給該指示器。 3. 如請求項2之照明裝置,進一步包括一通信介面(218), 其經配置以接收該預定關係。 4. 如响求項1或2之照明裝置,其中該光感測器係遠離該發 光元件而放置。 5. 如β求項1、2或3之照明裝置,其中該光感測器包括一 光電一極體(220) ’該光電二極體(22〇)經配置以估計由 該發光元件發射之光。 6. 如請求項卜2或3之照明裝置,進一步包括一控制器 (222) ’該控制器(222)經配置以控制由該發光元件消耗 154328.doc 201201629 之電力。 青求項6之照明裝置,進一步包括光電回饋電路,該 光電回饋電路係耦接至該光感測器及該控制器,藉此使 得該發光元件能夠以大體上恆定的流明輸出來操作。 8. 如請求項6之照明裝置,其中該控制器係搞接至該電力 感測器,藉此使得該發光元件能夠以一大體上恆定的電 力位準來操作。 9. 如請求項卜2或3之照明裝置,進一步包括—溫度感測 器(224),該溫度感測器(224)係耦接至該電力感測器且 經配置以感測該發光元件的溫度,且其中該感測之電力 係從該感測之溫度估計。 10·如請求項9之照明裝置,進一步包括耦接至該發光元件 之政熱器(226) ’且其中該溫度係從該散熱器量測。 11. 如叫求項1、2或3之照明裝置,其中由該發光元件消耗 之電力係從由該發光元件消耗之一操作電流感測。 12. 士叫求項!、2或3之照明裝置,其中由該發光元件消耗 之電力係從跨該發光元件而量測之一操作電壓感測。 1 3 ·如吻求項〗、2或3之照明裝置,其中該指示器係一使用 者介面(228)的一部分。 14·種照明器(23 0) ’其包括如請求項1至丨3中任一項之至 少一個照明裝置。 15.如吻求項14之照明器,進—步包括一外殼,且其中該指 示器係整合於該外殼(232)内。 154328.doc201201629 VII. Patent application scope: 1. A lighting device (102, 2〇2) comprising: a light emitting element (104); a light sensor (106) configured to sense emission by the light emitting element a lumen contribution of light; a power sensor (108) 'configured to sense power consumed by the light emitting element; an estimator (110) configured to estimate the lumen contribution of the sense and the sense A relationship between measured power consumption; and a finger (112) configured to receive the estimated relationship from the estimator and output an indication of the relationship of the estimate. 2. The lighting device of claim 1, further comprising a comparator (216) configured to correlate the estimated relationship to a predetermined relationship between the lumen contribution and the power consumption, and The relationship is provided to the indicator. 3. The lighting device of claim 2, further comprising a communication interface (218) configured to receive the predetermined relationship. 4. The illumination device of claim 1 or 2, wherein the light sensor is placed away from the light emitting element. 5. The illumination device of claim 1, 2 or 3, wherein the photo sensor comprises a photodiode (220) 'the photodiode (22A) is configured to estimate emission by the illuminating element Light. 6. The lighting device of claim 2 or 3, further comprising a controller (222)&apos; wherein the controller (222) is configured to control the power consumed by the lighting element 154328.doc 201201629. The illumination device of claim 6, further comprising a photo-feedback circuit coupled to the photosensor and the controller, thereby enabling the illumination element to operate with a substantially constant lumen output. 8. The illumination device of claim 6, wherein the controller is coupled to the power sensor, thereby enabling the light emitting element to operate at a substantially constant power level. 9. The illumination device of claim 2 or 3, further comprising a temperature sensor (224) coupled to the power sensor and configured to sense the light emitting element The temperature, and wherein the sensed power is estimated from the sensed temperature. 10. The illumination device of claim 9, further comprising a positron (226)&apos; coupled to the illuminating element and wherein the temperature is measured from the radiant. 11. The illumination device of claim 1, 2 or 3, wherein the power consumed by the illumination element is sensed from an operating current consumed by the illumination element. 12. Ask for help! A lighting device of 2, 3, wherein the power consumed by the illuminating element is sensed from an operating voltage across the illuminating element. 1 3 - A lighting device such as a Kiss, 2 or 3, wherein the indicator is part of a user interface (228). 14. A luminaire (23 0) </ RTI> comprising at least one illumination device as claimed in any one of claims 1 to 3. 15. The illuminator of claim 14, wherein the step comprises an outer casing, and wherein the indicator is integrated within the outer casing (232). 154328.doc
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