1304461 九、發明說明： 【發明所屬之技術領域】 - 本發明係關於一種照明裝置。 •【先前技術】 隨著社會之發展，大型樓宇不斷出現，其—般面積較 大，位於中間之位置較難接受到外界自然光，故於白天亦 需要採用照明裝置進行照明。目前之照明裝置多爲電力照 明，且習知電力多爲利用石油、煤炭等非再生能源所得。 * 爲此，有人提出了利用太陽光之照明裝置。 習知利用太陽光之照明裝置一般包括太陽能板、蓄電 池及發光裝置等，其利用太陽能板先將太陽光收集並轉換 成電能，然後藉由該蓄電池將所得之電能儲存起來，再藉 由蓄電池向發光裝置通電使其發光，從而達到室内照明之 目的。 該照明裝置藉由太陽能板、蓄電池及發光裝置來利用 • 太陽光，以進行照明。因該照明裝置需要經過先將太陽光 變爲電能再從電能到光能之轉變過程，中間需引入太陽能 板及蓄電池等昂貴設備，相較于直接利用太陽光線之照明 裝置，其成本大大增加。 【發明内容】 有鑒於此，有必要提供一種成本低廉之照明裝置。 一種照明裝置，其包括一導光板、一聚光元件及一反 光裝置。該導光板具有一出光面，該聚光元件設置於該導 光板一侧。該反光裝置用於接受太陽光線並將其反射到該 5 1304461 聚光元件，該聚光元件將來自該反光農置之光線加以聚集 並導入該導光板内，使光線經該導光板之出光面出射。 . 相較于習知技術，該照明裝置利用一反光裝置將太陽 光線接受並反射到-聚光元件，該聚光元件將來自該反光 裝置之光線加以聚集並導入一導光板，該導光板將該來自 聚光元件之光線加以分散並從其出光面出射，達到昭明之 目的。該照明裝置利収光裝置、聚光元件及導光板將光 • 進行直接引導，避免採用太陽能板及蓄電池等昂貴設備， 因此，該照明裝置具有成本低廉之優點。 【實施方式】 下面將結合附圖及實施例對本發明之照明裝置進一 步詳細說明。 請參閱圖1,其爲本發明照明裝置之較佳實施例。該 照明裝置10包括一導光板u、一三稜鏡13及一反光裝置 14 〇 該導光板11爲一四方板，其包括一出光面m、一底 面113及四側面114。該底面n3與該出光面m相對， 該四個側面114介於該出光面m與底面113之間且連接 該出光面111與底面113。該底面113上設置有複數網點 障列1131。該三稜鏡13包括三侧面及兩端面I%，其中 侧面爲進光面131，且與該進光面131相連之其餘兩側 面爲兩出光側面132。該三稜鏡13靠近該導光板11之一 J面114，且其兩出光側面I%相對鄰近該導光板11之所 逑侧面114。該反光裝置14具有一反射面141，其可將太 6 1304461 陽光線反射到該三稜鏡13之進光面131。 該反光裝置14用於接受太陽光線並將其反射到該三 稜鏡13之進光面131。該三棱鏡13將來自該反光裝置14 •之光線加以聚集並從其兩出光側面132出射，以便光線能 有效導入該導光板11内。該導光板11具有均光作用，其 藉由底面113之網點陣列1131作用將光線發散，並從其出 光面111射出，以達到室内均勻照明之目的。 爲了便於該照明裝置10於雨天或陽光不足時候亦可 照明，該照明裝置10還包括一發光裝置12及一與該發光 裝置12相連接之外部電源（圖未示）。該發光裝置12可 爲發光二極體或冷陰極螢光燈，且其可設置於該導光板11 除出光面111外之任何一側。本實施例之發光裝置優選發 光二極體陣列，其設置於該導光板11之底面113，且該發 光二極體陣列與該底面之網點陣列爲交錯排列，以便該發 光二極體所發出之光線能夠從網點陣列之空隙進入導光 板11内。該電源可向該發光裝置12供電並使得該發光裝 置12發光，以使得該照明裝置10之照明功能不受外界天 氣限制。 可以理解，爲增加該發光裝置12之光能利用率，該 照明裝置10還可包括一發光裝置罩15。該發光裝置罩15 爲一平板狀，其設置于該發光裝置12遠離該導光板11 一 側並與該導光板11相對。該發光裝置罩15具一朝向該發 光裝置12及該導光板11之反射面151。該反射面151可 將該發光裝置12所發出之向上部分反射回該導光板11， 7 1304461 以提高該發光裝置12之光能利用率。 可以理解，由於天氣變化等原因，太陽光強弱會出現 •波動情況，從而導致室内照明強度變化。爲此，該照明裝 ’置10還可包括一光強控制元件16。該光強控制元件16設 置于該發光裝置12與電源之間，其可感測室内之光強度 並依據所感測光強度調整發光裝置12之電壓或電流或工 作數量，從而控制該發光裝置12之發光功率，以達室内 照明強度穩定之目的。 ^ 爲增加該照明裝置10之發光均勻性，可以進一步於 該導光板11靠近該三稜鏡13之側面114上設置複數V型 微結構（圖未示），該V型微結構將來自該三棱鏡13之出 光側面132之光加以分散，以更進一步使該照明裝置10 達到均勻照明之目的。 爲減少太陽相對反光裝置14位置變化對其採光作用 之限制，該照明裝置10還包括一調整裝置17及一太陽跟 φ 蹤裝置18。該調整裝置17爲一自動控制之旋轉支架。該 太陽跟蹤裝置18友該反光裝置14均固定於該調整裝置17 上。該太陽跟蹤裝置18將其所感測到之太陽位置資訊傳 遞給該調整裝置17，該調整裝置17根據該資訊作對應之 調整動作，以保證該反光裝置14能接受太陽光線並反射 到該三稜鏡13。 可以理解，該照明裝置10之三稜鏡13之主要作用在 於將光線加以聚集，因此，該三棱鏡13可以其他聚光元 件替代，如凸透鏡等。該反光裝置14之作用爲接受太陽 8 1304461 光線並將其反射到三稜鏡13，因此，該反光裝置14可爲 一平面反射鏡，亦可爲一由複數平面反射鏡組成之反射鏡 組，該反光元件相互呈一定角度並可將太陽光線傳遞到樓 •宇底層及底下室等一偏僻之角落。 本發明之照明裝置，其利用一反光裝置將太陽光線反 射到一聚光元件，該聚光元件將來自反光裝置之光線加以 聚集並有效導入一導光板内，該導光板將來自該聚光元件 之光線發散並從其出光面出射，以達到均勻照明之目的。 該照明裝置利用反光裝置、聚光元件及導光板將光進行直 接引導，避免採用太陽能板等昂貴設備，因此，該照明裝 置具有成本低廉之優點。此外，外加之發光裝置可以避免 由於天氣原因而對該照明裝置之照明功能産生影響。 【圖式簡單說明】 圖1係本發明照明裝置具體實施例之立體示意圖。 【主要元件符號說明】 照明裝置 10 導光板 11 出光面 111 底面 113 網點陣列 1131 側面 114 發光裝置 12 三稜鏡 13 進光面 131 出光側面 132 端面 135 反光裝置 14 反射面 141 、 151 發光裝置罩 15 光強控制元件 16 調整裝置 17 1304461 18 太陽跟蹤裝置1304461 IX. Description of the invention: [Technical field to which the invention pertains] - The present invention relates to a lighting device. • [Prior Art] With the development of society, large buildings are constantly appearing, and their general area is relatively large. It is difficult to receive natural light from the middle of the place. Therefore, lighting devices are needed for lighting during the day. At present, most of the lighting devices are power lighting, and the conventional power is mostly obtained from non-renewable energy sources such as oil and coal. * For this reason, lighting devices using sunlight have been proposed. Conventional lighting devices that use sunlight generally include solar panels, batteries, and light-emitting devices, etc., which use solar panels to collect and convert sunlight into electrical energy, and then store the generated electrical energy by the battery, and then use the battery to The illuminating device is energized to emit light, thereby achieving the purpose of indoor lighting. The illuminating device utilizes solar light for illumination by solar panels, batteries, and light-emitting devices. Since the lighting device needs to change the process of converting sunlight into electric energy and then converting it from electric energy to light energy, expensive equipment such as solar panels and batteries is required in the middle, and the cost is greatly increased compared with the lighting device that directly uses sunlight. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a low-cost lighting device. A lighting device includes a light guide plate, a light collecting member and a light reflecting device. The light guide plate has a light emitting surface, and the light collecting element is disposed on one side of the light guide plate. The light reflecting device is configured to receive and reflect sunlight to the 51304461 concentrating element, and the concentrating element collects light from the reflective illuminating device and introduces the light into the light guiding plate to pass the light through the light emitting surface of the light guiding plate Exit. Compared with the prior art, the illuminating device uses a reflecting device to receive and reflect the sunlight to the concentrating element, and the concentrating element collects the light from the reflecting device and introduces it into a light guide plate, and the light guiding plate will The light from the concentrating element is dispersed and emitted from the illuminating surface thereof for the purpose of illumination. The illuminating device has a light-receiving device, a concentrating element, and a light guide plate to directly guide the light, thereby avoiding the use of expensive equipment such as solar panels and batteries. Therefore, the illuminating device has the advantages of low cost. [Embodiment] Hereinafter, a lighting device of the present invention will be described in further detail with reference to the accompanying drawings and embodiments. Please refer to FIG. 1, which is a preferred embodiment of a lighting device of the present invention. The illuminating device 10 includes a light guide plate u, a third cymbal 13 and a light reflecting device 14 〇 The light guide plate 11 is a square plate including a light emitting surface m, a bottom surface 113 and four side surfaces 114. The bottom surface n3 is opposite to the light-emitting surface m. The four side surfaces 114 are interposed between the light-emitting surface m and the bottom surface 113, and are connected to the light-emitting surface 111 and the bottom surface 113. A plurality of dot barrier rows 1131 are disposed on the bottom surface 113. The three sides 13 include three sides and two end faces I%, wherein the side faces are the light incident faces 131, and the remaining two sides connected to the light incident face 131 are the two light exiting faces 132. The three turns 13 are adjacent to one of the J-planes 114 of the light guide plate 11, and the two light-emitting sides I% are relatively adjacent to the respective side faces 114 of the light guide plate 11. The light reflecting device 14 has a reflecting surface 141 which reflects the sunlight of the sun 6 1304461 to the light incident surface 131 of the three turns 13. The light reflecting means 14 is adapted to receive the sunlight and reflect it to the light entrance surface 131 of the triplet 13. The triangular prism 13 collects light from the light reflecting means 14 and exits from the two light emitting sides 132 so that light can be efficiently introduced into the light guiding plate 11. The light guide plate 11 has a uniform light effect, and the light is diverged by the dot array 1131 of the bottom surface 113, and is emitted from the light exit surface 111 to achieve uniform illumination in the room. In order to facilitate illumination of the illuminating device 10 during rainy days or when the sun is insufficient, the illuminating device 10 further includes a illuminating device 12 and an external power source (not shown) connected to the illuminating device 12. The illuminating device 12 can be a light emitting diode or a cold cathode fluorescent lamp, and can be disposed on any side of the light guiding plate 11 except the light surface 111. The light-emitting device of the present embodiment is preferably disposed on the bottom surface 113 of the light guide plate 11 , and the array of light-emitting diodes and the dot array of the bottom surface are staggered so as to be emitted by the light-emitting diode. Light can enter the light guide plate 11 from the gap of the dot array. The power source can supply power to the illumination device 12 and cause the illumination device 12 to illuminate such that the illumination function of the illumination device 10 is not limited by outside air. It will be appreciated that to increase the light energy utilization of the illumination device 12, the illumination device 10 can also include a light fixture cover 15. The light-emitting device cover 15 is in the form of a flat plate, and is disposed on a side of the light-emitting device 12 away from the light guide plate 11 and opposite to the light guide plate 11. The light-emitting device cover 15 has a reflecting surface 151 facing the light-emitting device 12 and the light guide plate 11. The reflecting surface 151 can reflect the upward portion emitted by the illuminating device 12 back to the light guide plate 11, 7 1304461 to improve the light energy utilization rate of the illuminating device 12. It can be understood that due to weather changes and the like, the intensity of sunlight will appear • fluctuations, resulting in changes in the intensity of indoor lighting. To this end, the illumination device 10 can also include a light intensity control element 16. The light intensity control component 16 is disposed between the light emitting device 12 and the power source, and can sense the light intensity in the room and adjust the voltage or current or the working quantity of the light emitting device 12 according to the sensed light intensity, thereby controlling the light emitting of the light emitting device 12. Power, to achieve the purpose of indoor lighting intensity stability. In order to increase the uniformity of illumination of the illumination device 10, a plurality of V-shaped microstructures (not shown) may be further disposed on the side surface 114 of the light guide plate 11 adjacent to the three turns 13, and the V-shaped microstructures will be from the prism. The light from the light exit side 132 of the 13 is dispersed to further achieve uniform illumination of the illumination device 10. In order to reduce the limitation of the solar light relative to the positional change of the light reflecting means 14, the lighting device 10 further includes an adjusting device 17 and a sun ray trace device 18. The adjustment device 17 is an automatically controlled rotating bracket. The solar tracking device 18 is fixed to the adjustment device 17 by the reflective device 14. The sun tracking device 18 transmits the sensed position information of the sun to the adjusting device 17, and the adjusting device 17 performs corresponding adjustment actions according to the information to ensure that the reflecting device 14 can receive the sun light and reflect to the triangular edge. Mirror 13. It can be understood that the third function of the illumination device 10 is mainly for collecting light. Therefore, the triangular prism 13 can be replaced by other light-collecting elements, such as a convex lens or the like. The function of the reflector 14 is to receive the light of the sun 8 1304461 and reflect it to the third 13 . Therefore, the reflector 14 can be a plane mirror or a mirror group composed of a plurality of plane mirrors. The reflective elements are at an angle to each other and can transmit the sun's rays to a remote corner such as the floor and the bottom floor. The illuminating device of the present invention uses a reflecting device to reflect the sunlight to a concentrating element, and the concentrating element collects the light from the reflecting device and effectively introduces it into a light guiding plate, and the light guiding plate will come from the concentrating element The light diverges and exits from its illuminating surface for uniform illumination. The illuminating device directly guides light by using a reflecting device, a concentrating element, and a light guide plate, thereby avoiding the use of expensive equipment such as solar panels. Therefore, the illuminating device has the advantage of low cost. In addition, the additional illuminating device can avoid affecting the lighting function of the illuminating device due to weather. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a specific embodiment of a lighting device of the present invention. [Description of main components] illuminating device 10 light guide plate 11 light emitting surface 111 bottom surface 113 dot array 1131 side 114 light emitting device 12 three 进 13 light emitting surface 131 light emitting side surface 132 end surface 135 light reflecting device 14 reflecting surface 141, 151 light emitting device cover 15 Light intensity control element 16 adjustment device 17 1304461 18 sun tracking device