1359241 :ι ύ 〇年:〇 7¾ ia日修正_ w 、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種照明裝置，尤其涉及一種採用發光二極 體作為發光元件之照明裝置。 【先前技術】 [0002] 目前，發光二極體（Light emi tt ing Diode，LED)因 具體積小，效率高，壽命長等優點而逐漸取代現有之螢 光燈或白熾燈作為照明裝置之發光元件，以節省電能， 減少資源之浪費。具體可參閱Michael S. Shur等人於 文獻Proceedings of the IEEE, Vol. 93，No. 10 (2005 年 10 月）中發表之 “Solid-State Lighting: Toward Superior Illumination” 一文。 [0003] 另一方面，隨著當今世界能源問題日趨緊張，太陽光能 作為一種清潔衛生且取之不盡之能源受到越來越多關注 - 」將太陽光能-轉化為-人們可北用之能源l如電能於先_前 技術中通常藉由太陽能電池以實現。 [0004] 考慮到以上因素，將照明裝置與太陽能電池相結合，利 用太陽能電池轉化太陽光能後所獲取之電能以驅動照明 裝置發光，正成為當今科技界之一大課題。 [0005] 惟，於先前技術中，將照明裝置，如發光二極體與太陽 能電池相結合之製程往往較為複雜，且照明裝置與太陽 能電池相結合後作為一整體，其只能應用於照明，而無 法兼具其他方面之功用，如建築物之採光等。 [0006] 有鑒於此，本發明提供一種照明裝置，其既可提供照明 097117959 表單編號A0101 第3頁/共16頁 1003263182-0 1359241 、1:00弃.07·月i9日核正_4^頁、 又可提供建築物採光。 【發明内容】 [0007] 下面將以實施例說明一種既可提供照明又可提供建築物 採光之照明裝置。 [0008] 一種照明裝置，包括一可透光基板，該基板包括一底面 、與該底面相交之至少一入光面及與該底面相對之一出 光面；複數固態光源，其相對該基板之至少一入光面設 置，該複數固態光源發射之光線由該至少一入光面入射 至該基板後從該基板之出光面出射；以及至少一太陽能 € 電池，其相對該基板之底面設置，用於吸收太陽光並將 太陽光能轉化為電能，以提供電源至該複數固態光源。1359241 : ύ 〇 〇 〇 〇 ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ 发明 发明 发明 发明 发明 发明 发明 发明 【 【 【 【 【 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 [Prior Art] [0002] At present, the light emitting diode (LED) gradually replaces the existing fluorescent lamp or incandescent lamp as the illumination device due to the advantages of small specific product, high efficiency, long life and the like. Components to save power and reduce waste of resources. For more details, see "Solid-State Lighting: Toward Superior Illumination" by Michael S. Shur et al., Proceedings of the IEEE, Vol. 93, No. 10 (October 2005). [0003] On the other hand, as the world's energy problems become more and more tense, solar energy is receiving more and more attention as a clean and inexhaustible source of energy - "converting solar energy into - people can use it north] The energy source l, such as electrical energy, is usually achieved by solar cells in the prior art. [0004] In view of the above factors, the combination of a lighting device and a solar cell, and the use of the solar cell to convert the solar energy obtained by the solar cell to drive the illumination device to emit light, is becoming a major issue in the current scientific and technological field. [0005] However, in the prior art, the process of combining a lighting device, such as a light-emitting diode, with a solar cell is often complicated, and the lighting device and the solar cell are combined as a whole, which can only be applied to illumination. It can't have other functions, such as lighting in buildings. In view of this, the present invention provides a lighting device that can provide illumination 097117959 Form No. A0101 Page 3 / Total 16 Page 1003263182-0 1359241, 1:00 Abandonment. 07·Month i9 Day Nuclear _4^ The page can also provide building lighting. SUMMARY OF THE INVENTION [0007] An illumination device that provides both illumination and building lighting can be described by way of example. [0008] A lighting device includes a light transmissive substrate, the substrate comprising a bottom surface, at least one light incident surface intersecting the bottom surface, and a light emitting surface opposite the bottom surface; and a plurality of solid state light sources opposite to the substrate a light-emitting surface is disposed, the light emitted by the plurality of solid-state light sources is emitted from the light-emitting surface of the substrate after the at least one light-incident surface is incident on the substrate; and at least one solar energy battery is disposed opposite to the bottom surface of the substrate for Absorbing sunlight and converting solar energy into electrical energy to provide power to the plurality of solid state light sources.
[0009] 相對於先前技術，該照明裝置藉由設置一可透光基板， 以及於該可透光基板之底面上設置一太陽能電池，一方 面，該太陽能電池可將太陽光能轉化為電能並對固態光 源供電，從而利用固態光源進行照明而節約能源；另一 方面，由於該基板可透光，故該照明裝置可讓部分太陽 光直接透過，以提供提供建築物白天時之採光。 ‘ 【實施方式】 [0010] 下面將結合圖式，以對本發明實施例作進一步之詳細說 明。 [0011] 請參閱圖1，本發明第一實施例提供之一種照明裝置10， 包括一可透光基板11，複數固態光源13及一太陽能電池 15 ° [0012] 該基板11可為一長方形結構，其包括一底面110、與該底 097117959 表單編號A0101 第4頁/共16頁 1003263182-0 1359241 .100年.07.1 Ϊ9日接正_頁 面110相交之至少一入光面112，以及與該底面110相對 之一出光面114。於本實施例中，該長方形結構具有四個 入光面112。該基板11可透光，其可,為一玻璃基板。當然 ，該基板11亦可採用其他透明之塑膠，如 PMMA(Polymethylmethacry late,聚甲基丙烯酸曱酯） 、PC(Poly Carbonate，聚碳酸脂）、石夕樹脂 (si 1 icone)等製成》 [0013] 該複數固態光源13與該基板11光學搞合，其可具體為複 • 數發光二極體。於本實施例中’該複數發光二極體相對 基板11之每個入光面112設置，其所發出之光線經該入光 面112入射至基板11後，由該基板11對其進行光學引導， 如透射及反射等，使其從基板11之出光面114出射。本領 域技術人員可理解，該照明裝置10之四個入光面112上可 分別設置電路板，該複數固態光源13設置於該電路板 上。 … " ---—· — -- ---- _ [0014] 該太陽能電池15設置於該基板11之底面11〇上。具體地， • 該基板11之底面110可藉由半導體製程形成複數透明導電 薄膜116，如複數IT0(銦錫氧化物）層或複數ιζ〇(銦鋅氧 化物）層。該太陽能電池15藉由該複數透明導電薄膜116 與該基板11相連接〇進一步地，該照明裝置1〇可包括一 蓄電裝置（圖未示）’如一蓄電池，該複數透明導電薄膜 116可作為該太陽能電池15之電極，以藉由其電連接該蓄 電裝置與該太陽能電池15。當太陽能電池15受太陽光照 射’並將太陽光能轉化為電能時’可藉由該蓄電裝置將 電能儲存於其内。當然，該蓄電裝置可進一步與該電路 097117959 表單編號A0101 第5頁/共16頁 1003263182-0 1359241 . 「，__.___— i:do年刀故ia日核正辦頁 板電性連接，從而使該複數固態光源13、太陽能電池15 及蓄電裝置三者形成電性相連，以利用該蓄電裝置對該 複數固態光源13供電。 [0015] 該太陽能電池15可具有一定之光透過率，其可具體為基 板石夕晶（Silicon-based)太陽能電池（單晶石夕，多晶石夕 ，非晶矽），或者為III-V族半導體材料（AlAs ' InAs、[0009] Compared with the prior art, the illuminating device is provided with a permeable substrate, and a solar cell is disposed on the bottom surface of the permeable substrate. On the one hand, the solar cell can convert solar energy into electrical energy. The solid-state light source is powered to illuminate with a solid-state light source to save energy; on the other hand, because the substrate is transparent, the illuminating device allows part of the sunlight to pass through directly to provide daylighting during the building. [Embodiment] [0010] The embodiments of the present invention will be further described in detail below with reference to the drawings. [0011] Please refer to FIG. 1 , a lighting device 10 according to a first embodiment of the present invention includes a light transmissive substrate 11 , a plurality of solid state light sources 13 and a solar cell 15 ° [0012] The substrate 11 can be a rectangular structure And including a bottom surface 110, and the bottom surface 097117959 Form No. A0101 Page 4 / 16 pages 1003263182-0 1359241. 100 years. 07.1 Ϊ 9th 接 _ page 110 intersect at least one light entrance surface 112, and the bottom surface 110 is opposite to one of the light exiting surfaces 114. In the present embodiment, the rectangular structure has four light incident surfaces 112. The substrate 11 can transmit light, which can be a glass substrate. Of course, the substrate 11 can also be made of other transparent plastics, such as PMMA (Polymethylmethacry late, polymethylmethacrylate), PC (Poly Carbonate, polycarbonate), and Si Xi resin (si 1 icone). The plurality of solid-state light sources 13 are optically coupled to the substrate 11, and may be specifically a plurality of light-emitting diodes. In the present embodiment, the plurality of light-emitting diodes are disposed on each of the light-incident surfaces 112 of the substrate 11. The light emitted by the plurality of light-emitting diodes is incident on the substrate 11 through the light-incident surface 112, and is optically guided by the substrate 11. , such as transmission and reflection, are emitted from the light exit surface 114 of the substrate 11. It will be understood by those skilled in the art that a circuit board can be respectively disposed on the four light incident surfaces 112 of the illumination device 10, and the plurality of solid state light sources 13 are disposed on the circuit board. ... [0014] The solar cell 15 is disposed on the bottom surface 11 of the substrate 11. Specifically, the bottom surface 110 of the substrate 11 can form a plurality of transparent conductive films 116, such as a complex IT0 (indium tin oxide) layer or a plurality of ITO (indium zinc oxide) layers, by a semiconductor process. The solar cell 15 is connected to the substrate 11 by the plurality of transparent conductive films 116. Further, the illumination device 1 can include a power storage device (not shown) such as a battery, and the plurality of transparent conductive films 116 can serve as the battery An electrode of the solar cell 15 is electrically connected to the solar cell 15 by the electric storage device. When the solar cell 15 is exposed to sunlight and converts solar energy into electrical energy, electrical energy can be stored therein by the electrical storage device. Of course, the power storage device can further be electrically connected to the circuit 097117959, form number A0101, page 5 of 16 pages 1003263182-0 1359241. ", __.___-i: The plurality of solid-state light sources 13, the solar cell 15 and the power storage device are electrically connected to each other to supply power to the plurality of solid-state light sources 13 by the power storage device. [0015] The solar cell 15 may have a certain light transmittance, which may Specifically, it is a substrate-based Silicon-based solar cell (single crystal, polycrystalline, amorphous), or a III-V semiconductor material (AlAs 'InAs,
InP、GaP、GaAs、GaN或其化合物）所製成之太陽能電池 ，又或者為銅銦硒/銅銦硒鎵（CIGS/CIS)、締化鎘 (CdTe)材料，有機材料或光敏感染料物質所製成之太陽 _ 能電池（dye-sensitized solar cell，DSSC)，且該 太陽能電池15之厚度小於300微米（μιη)，即該太陽能電 池15為一薄膜太陽能電池（thin film solar cell)。 [0016] 該複數固態光源13及該太陽能電池15上可形成一保護層（ 圖未示），如一樹脂層或一防水薄膜層，以對其起保護作 用，如防水防塵等。使用時，該照明裝置10可設置為辦 公樓之窗戶玻璃，該基板11之底面110面向室外設置，以 利用該太陽能電池15吸收太陽光並將太陽光能轉化為電 < 能，該基板11之出光面114面向室内設置。一方面，於白 天，由於該基板11及該太陽能電池15均可透光，故該照 明裝置10可讓部分之太陽光直接透射過該太陽能電池15 及該基板11，以提供建築物採光，從而使室内保持一定 之亮度。當然，該太陽能電池15於白天時可開啟，以將 照射至太陽能電池15，並被該太陽能電池15所吸收之太 陽光轉化為電能並儲存於該蓄電裝置内；另一方面，當 夜晚來臨，該太陽能電池15未接受到太陽光照時，可利 097117959 表單編號A0101 第6頁/共16頁 1003263182*0 1359241 ia 日:頁 用該蓄電裝置所儲存之電能對該複數固態光源13供電。 可理解，當該太陽能電池15對該複數固態光源13供電時 ’該複數固態光源13發出之光由該基板11之出光面114出 射，從而對室内起照明作用。 [0017] 為使複數固態光源13發出之光由該基板11之出光面114出 射時，其出光均勻，可於該出光面114上形成複數微結構 以使其成為一粗糙表面，且該微結構具體可為V形槽 (V-cut)或印刷網點。 φ [0018] 請參閱圖2，本發明第二實施例提供之一種照明裝置30， 其與本發明第一實施例提供之照明裝置10基本相同，差 別僅在於：至少一太陽能電池35之數目為複數，且該複 數太陽能電池35間隔排布並設置於複數透明導電薄膜316 上；另，該基板31之出光面314形成一增亮膜（Bright。 Enhancement Film, BEF)，該基板31之四個入光面 312還-開設複數收容槽312 〇以對-應容納複數固態光源袖_ ，從而使照明裝置10之體積進一步小型化。 鲁[0019] 本領域技術人員可理解，該複數太陽能電池35之間之間 隔可增加透射過基板31之太陽光量，其可增強太陽光之 光透過率，該基板31之出光面314上所形成之增亮膜可增 加透射過基板31之太陽光量，故，相對第一實施例中之 照明裝置10，本實施例所提供之照明裝置30可進一步增 加白天室内之亮度。另，於本實施例中，由於該複數太 陽能電池35間隔排布，該基板31之底面310具有裸露於外 界之區域，太陽光可直接照射於該區域上並透射過基板 31 ,故，該太陽能電池35亦可設置為一不透光之太陽能 097117959 表單編號A0101 第7頁/共16頁 1003263182-0 1359241 M)〇m.〇m igia 電池35，其並不影響到本發明之實施。 [0020] 請參閱圖3，本發明第三實施例提供之一種照明裝置50， . 與本發明第二實施例提供之照明裝置30相比，其差異在’ 於：該照明裝置50之基板51之面積較大，且該基板51出 光面514上對應於太陽能電池55之間之間隔處開設複數凹 槽518 ’進一步地，相對該複數凹槽518之側面5180設置 複數固態光源53 » [0021] 當然，該複數凹槽518之側面5180亦可開設複數收容槽以 對應容納該複數固態光源53 » · [0022] 通常，當該基板51之面積較大時，僅靠相對四個入光面 512設置之複數固態光源53發出之光線，其難以使由基板 51之出光面514出射之光均勻化，於本實施例中，藉由開 ^ 設該複數凹槽518並對應設置複數固態光源53，可使得包 含有較大面積基板51之照明裝置50具備較佳之出光均勻 度。 [〇〇23] 請參閱圖4，本發明第四實施例提供之一種照明裝置70， 其與本發明第一實施例提供之照明裝置1〇基本相同，差 別僅在於：該至少一太陽能電池75為複數微型矽球。 [0024] 照射至該複數微型矽球上之太陽光（如圖4中虛箭頭所示） 可被該複數微型矽球吸收並轉化為電能，而照射至該複 數微型矽球之間間隔之太陽光（如圖4中實箭頭所示）則可 進一步透射過基板71，以於白天時提供建築物採光。相 較於本發明第一實施例所提供之太陽能電池15，採用該 複數微型矽球所製成之太陽能電池75可允許更多之太陽 097117959 表單編號 A0101 第 8 頁/共 16 頁 1003263182-0 1359241 -· Idci年.07月19日接正_頁 光透射過基板71，從而增強白天室内之亮度。 _ [0025] 综上所述，本發明確已符合發明專利之要件，遂依法提 出專利申請。惟，以上所述者僅為本發明之較佳實施方 式，自不能以此限制本案之申請專利範圍。舉凡熟悉本 案技藝之人士援依本發明之精神所作之等效修飾或變化 ，皆應涵蓋於以下申請專利範圍内。 [0026] 【圖式簡單說明】 圖1係本發明第一實施例提供之照明裝置之結構示意圖。 φ [0027] 圖2係本發明第二實施例提供之照明裝置之結構示意圖。 [0028] 圖3係本發明第三實施例提供之照明裝置之結構示意圖。 [0029] 圖4係本發明第四實施例提供之照明裝置之剖面示意圖。 [0030] 【主要元件符號說明】 照明裝置：10、30、50、70 [0031] 基板：11、31、51、71 • [0032] 固態光源：13、33、53 [0033] 太陽能電池：15、35、55、75 [0034] 底面：110、310 [0035] 入光面：112、312、512 [0036] 出光面：114、314、514 [0037] 透明導電薄膜：116、316 [0038] 凹槽：518 097117959 表單編號A0101 第9頁/共16頁 1003263182-0 1359241 , ,___ [Mofea龜isi日翁e辨j满 [0039] 收容槽：3120 [0040] 側面：5180A solar cell made of InP, GaP, GaAs, GaN or a compound thereof is either a copper indium selenide/copper indium selenide gallium (CIGS/CIS), a cadmium cadmium (CdTe) material, an organic material or a light sensitive dye substance. The fabricated solar cell has a thickness of less than 300 micrometers, that is, the solar cell 15 is a thin film solar cell. [0016] The plurality of solid-state light sources 13 and the solar cell 15 may be formed with a protective layer (not shown), such as a resin layer or a waterproof film layer, for protecting them, such as waterproof and dustproof. In use, the lighting device 10 can be configured as a window glass of an office building, and the bottom surface 110 of the substrate 11 faces outwardly to absorb sunlight and convert solar energy into electricity using the solar cell 15 . The light exit surface 114 is disposed indoors. On the one hand, during the daytime, since the substrate 11 and the solar cell 15 can transmit light, the illumination device 10 can directly transmit part of the sunlight to the solar cell 15 and the substrate 11 to provide building lighting. Keep the room a certain brightness. Of course, the solar cell 15 can be turned on during the daytime to illuminate the solar cell 15 and be converted into electric energy by the solar cell 15 and stored in the power storage device; on the other hand, when night comes, When the solar cell 15 is not receiving sunlight, 097117959 Form No. A0101 Page 6 of 16 1003263182*0 1359241 ia Day: The page supplies power to the plurality of solid state light sources 13 by the electrical energy stored by the power storage device. It can be understood that when the solar cell 15 supplies power to the plurality of solid-state light sources 13, the light emitted by the plurality of solid-state light sources 13 is emitted from the light-emitting surface 114 of the substrate 11, thereby illuminating the room. [0017] When the light emitted from the plurality of solid-state light sources 13 is emitted from the light-emitting surface 114 of the substrate 11, the light is uniform, and a plurality of microstructures can be formed on the light-emitting surface 114 to form a rough surface, and the microstructure is formed. Specifically, it may be a V-cut or a printed dot. [0018] Referring to FIG. 2, a lighting device 30 according to a second embodiment of the present invention is substantially the same as the lighting device 10 provided by the first embodiment of the present invention, except that the number of at least one solar battery 35 is The plurality of solar cells 35 are arranged at intervals and disposed on the plurality of transparent conductive films 316. The light-emitting surface 314 of the substrate 31 forms a brightness enhancement film (BEF), four of the substrates 31. The light incident surface 312 also opens a plurality of storage slots 312 to accommodate a plurality of solid state light source sleeves _, thereby further miniaturizing the volume of the illumination device 10. [0019] It can be understood by those skilled in the art that the interval between the plurality of solar cells 35 can increase the amount of sunlight transmitted through the substrate 31, which can enhance the light transmittance of the sunlight, and the light-emitting surface 314 of the substrate 31 is formed. The brightness enhancement film can increase the amount of sunlight transmitted through the substrate 31. Therefore, compared with the illumination device 10 of the first embodiment, the illumination device 30 provided in the embodiment can further increase the brightness of the daytime room. In addition, in this embodiment, since the plurality of solar cells 35 are arranged at intervals, the bottom surface 310 of the substrate 31 has an area exposed to the outside, and sunlight can be directly irradiated on the area and transmitted through the substrate 31. Therefore, the solar energy The battery 35 can also be configured as an opaque solar energy 097117959 Form No. A0101 Page 7 / Total 16 pages 1003263182-0 1359241 M) 〇m.〇m igia Battery 35, which does not affect the implementation of the present invention. [0020] Referring to FIG. 3, a lighting device 50 according to a third embodiment of the present invention is compared with the lighting device 30 according to the second embodiment of the present invention. The difference is in the substrate 51 of the lighting device 50. The area of the substrate 51 is relatively large, and a plurality of recesses 518 are formed at intervals corresponding to the solar cells 55. Further, a plurality of solid-state light sources 53 are disposed opposite to the side 5180 of the plurality of recesses 518. [0021] Of course, the side surface 5180 of the plurality of recesses 518 can also open a plurality of receiving slots to accommodate the plurality of solid state light sources 53. [0022] Generally, when the area of the substrate 51 is large, only the opposite four light incident surfaces 512 The light emitted by the plurality of solid-state light sources 53 is difficult to homogenize the light emitted from the light-emitting surface 514 of the substrate 51. In the embodiment, the plurality of solid-state light sources 53 are correspondingly disposed by the plurality of solid-state light sources 53. The illumination device 50 including the large-area substrate 51 can be made to have better light uniformity. Referring to FIG. 4, a lighting device 70 according to a fourth embodiment of the present invention is substantially the same as the lighting device 1 according to the first embodiment of the present invention, except that the at least one solar cell 75 is provided. For the plural miniature croquet. [0024] sunlight incident on the plurality of micro-balls (as indicated by the dashed arrow in FIG. 4) can be absorbed by the plurality of micro-balls and converted into electrical energy, and irradiated to the sun between the plurality of micro-balls Light (as indicated by the solid arrows in Figure 4) can then be further transmitted through the substrate 71 to provide building daylight during the day. Compared with the solar cell 15 provided by the first embodiment of the present invention, the solar cell 75 made of the plurality of miniature croquets can allow more sun 097117959 Form No. A0101 Page 8 of 16 1003263182-0 1359241 - Idci Year. On July 19th, the _ page light was transmitted through the substrate 71, thereby enhancing the brightness of the daytime room. _ [0025] In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural view of a lighting device according to a first embodiment of the present invention. [0027] FIG. 2 is a schematic structural view of a lighting device according to a second embodiment of the present invention. 3 is a schematic structural view of a lighting device according to a third embodiment of the present invention. 4 is a schematic cross-sectional view of a lighting device according to a fourth embodiment of the present invention. [Explanation of main component symbols] Illumination device: 10, 30, 50, 70 [0031] Substrate: 11, 31, 51, 71 • [0032] Solid state light source: 13, 33, 53 [0033] Solar cell: 15 35, 55, 75 [0034] bottom surface: 110, 310 [0035] light-incident surface: 112, 312, 512 [0036] light-emitting surface: 114, 314, 514 [0037] transparent conductive film: 116, 316 [0038] Groove: 518 097117959 Form No. A0101 Page 9 / Total 16 Page 1003263182-0 1359241 , ,___ [Mofea turtle isi e-e-e j full [0039] Storage slot: 3120 [0040] Side: 5180
1003263182-0 097117959 表單編號A0101 第10頁/共16頁1003263182-0 097117959 Form No. A0101 Page 10 of 16