200941747 九、發明說明： 【發明所屬之技術領域】 本發明大致上係關於經構形用以收集電磁轄射之收集 器，且特定言之，本發明係關於具有用於收集及集中被引 導至一太陽能收集器之陽光的光學元件之收集器。 本專利申請案主張2007年11月13曰申請之美國臨時申請 - 案第60/987,43 5號之權利。 【先前技術】 〇 太陽能收集器已使用光學元件以改變入射之陽光的方 向。該等太陽能收集器之實例揭示於俄國專利第2，135,909 號、美國專利第4,344,417號及美國專利第4,505,264號中。 在該俄國專利中’揭示一透明玻璃或塑膠之空心直角三 角形構件以重導光。光進入直角邊，且從三角形構件之斜 邊及直角邊之内表面反射之後被引導至三角形構件之底部 的一光電模組。 美國專利第4,344,41 7號揭示一類似於該俄國專利中揭示 ❹ 的t構，其中太陽能透過斜邊進入一楔形構件並被引導至 位於該楔形之底部之外表面上的一加熱元件。 美國專利第4,505,264號揭示一薄板，其具有一連串之具 ， 有不同折射率的二個相同棱鏡，其連續地使光彎曲以將其 引導至該薄板的一邊緣。 當前’基於太陽能之光伏打系統有關的一主要問題係： 總初始投資較電力所獲取之金額係相對高的。在一些國 家’舉例而言，諸如德國、義大利及美國，此初始成本係 136199.doc 200941747 用補貼金補償，其使續蓉 _ 之通等系統更具成本效率。促成該相對 高之初始成本的-個因數係當前太陽能電池係由多晶或單 S曰夕材料製成’且此等材料之價格係決定太陽能電池之價 格的主要因數。結果，太陽能電池沒有經歷半導體工業 之莫爾定律"所預測的標度因數及對應的價格侵蝕。 ，種減少一太陽能系統之成本的方法係藉由將太陽能電 池製為較小而減少製造—太陽能電池所需要的石夕材料量。 此可被實現，前提係提供一具有一面積經減少之光伏打電 池的系統，該系統將集中之陽光引導至該電池。 參考圓1’其中顯示一先前技術太陽能系統，其將集中 之陽光引導至一太陽能電、池。一具有一固定焦距12之透鏡 10被定向為面向太陽，且一太陽能電池14被定位於該透鏡 之焦點以接收集中之陽光。因為太陽自東至西移動，該透 鏡及太陽能電池總成在白天必須圍繞其水平軸及較佳地圍 繞其水平軸及垂直轴二者不斷地旋轉，以從黎明至黃昏一 整天均可擷取陽光。 參考圖2，其中顯示一先前技術陽光集中器系統，其不 旋轉或僅圍繞一單一轴旋轉以從黎明至黃昏擷取陽光。二 個抛物面反射器16被連接以形成一整體單元，其中每一者 具有一太陽能電池1 8位於其焦點上。該等反射器被耦合至 一追縱系統（未顯示），該追蹤系統使該等拋物面反射器及 太陽能電池圍繞其水平軸旋轉以追蹤太陽。此系統之一主 要不利點係其相對大，且因此當將其安裝於一屋頂上時應 注意避免風力影響。 136199.doc 200941747 在實務中’經決定之固定系統係以一 3至4之因數华中陽 光。圍繞一單一軸旋轉之系統可達成一集中因數3〇。 【發明内容】 在本發明之一例示性實施例中，揭示一經構形以收集及 集中入射之陽光的收集器。所揭示之實施例係薄、平的且 可被安裝於一屋頂上而極少關心風對該結構的影響。由於 ' 光學器件的使用’該系統以系統之一個組件的小運動追縱 及集中陽光。藉由具有追蹤太陽之能力’從黎明至黃昏集 © 中之陽光可被引導至太陽能電池。因為至光伏打之陽光被 集中為光伏打電池之大小’太陽能電池可被減小，此有效 地減少太陽能電池之成本及太陽能系統之總初始價格。 在本發明之一實施例中，太陽能系統包含如下之三個光 學組件：一透鏡陣列、位於該透鏡陣列之下的一楔形光學 構件及位於該楔形構件之下且被固定至該楔形構件的一光 …導構件。該光導構件具有光反射表面，該等光反射表面經 參 定位以用於自透鏡陣列接收之陽光並將其引導至一位於該 光導構件之一出射表面上的太陽能電池。該透鏡陣列中之 每一透鏡被相對彼此固定且該陣列經定位於該楔形構件之 . 頂端上。當追蹤太陽時，該透鏡陣列相對於楔形構件移 • 動’或者’替代地，該楔形構件相對於該透鏡陣列移動， 以隨著太陽自東移動至西而將聚焦之陽光引導至光導構件 中。位於光導構件内之反射表面相對於垂直轴可具有一實 質上45度之角。該等反射表面經定位為將折射陽光沿該光 導構件引導至一準直器，舉例而言，諸如一複式拋物面準 136199.doc 200941747 直Is，該準直器經定位為將光引導及進一步集中於太陽能 電池。 在另一實施例中，太陽能系統包含如下之四個光學組 件.一透鏡陣列；位於該透鏡陣列之下的一楔形光學構 件，被固定至該楔形構件的一光導構件；及位於該光導構 件内的光反射表面’該等光反射表面用於將接收之陽光引 導至一位於該光導構件之一出射表面上的太陽能電池。該 透鏡陣列之每一透鏡被相對彼此固定且該陣列被可滑動地 麵合至該棋形光學構件。該等透鏡可由玻璃或其他透明物 質製成，其等具有二個相對表面，二者均為彎曲，或一個 為f曲而另一個平面用於改變太陽光線之方向及使陽光折 射透過楔形構件至光導構件。可使用之一種該透鏡被稱為 平凸透鏡。可使用之另一類型透鏡被稱為菲涅爾（Fresnel) 類型之透鏡。提供追蹤結構以使透鏡陣列相對於楔形構件 移動’或替代地’使楔形構件相對於透鏡陣列移動，以在 追蹤太陽的同時使陽光聚焦於光導構件中的反射表面上。 位於光導構件中的每一反射表面或多或少相對於垂直軸可 具有一實質上45度之角。該等反射表面經定位為將折射陽 光自透鏡陣列引導至一準直器，舉例而言，諸如一複式抛 物面準直器’該準直器經定位為將接收之陽光引導及進一 步集中於太陽能電池。 在又一實施例中，太陽能系統包含如下之四個光學組 件：一透鏡陣列；位於該透鏡陣列之下的一楔形光學構 件；被固定至該楔形構件的一光導構件；及位於該光導構 136199.doc -9- 200941747 件内的光反射表面，該等光反射表面用於引導陽光穿過該 光導構件至一位於該光導構件之一出射表面上的太陽能電 池在此實施例中，該透鏡陣列被固定至該楔形光學構件 並用於使陽光折射穿過該楔形構件至該光導構件中的該等 反射表面。提供追蹤結構以可旋轉地及/或線性移動該完 整結構以放置透鏡陣列以接收及聚焦陽光於該光導構件中 之反射表面上。位於光導構件中的反射表面相對於垂直軸 可具有一實質上45度之角及將接收之陽光沿光導構件引導 至一準直器，舉例而言，諸如一複式抛物面準直器，該準 直器經定位為將陽光進一步引導及集中於太陽能電池。 則文已相當廣泛地概述本發明之較佳特徵，因此熟悉此 項技術者可更好地瞭解隨後本發明的詳細描述。本發明之 附加特徵將於下文中描述，其等形成本發明之申請專利範 圍之標的。熟悉此項技術者應瞭解，其等可容易地將所揭 不之概念及特定實施例用作一基礎以設計或修改其他結構 以實現本發明之相同目的，且該等其他結構在其最廣泛形 式上並不脫離本發明之精神及範疇。 從下列詳細描述、附加請求項及附圖將更充分瞭解本發 明之其他態樣、特徵及優點，圖中相似元件係給以相同參 考數字。 【實施方式】 參考圖3’其中顯示根據本發明之原理的一太陽能收集 器系統20之一實抵例。該實施例包含如下四個光學組件： 一透鏡陣列22、一透明光學材料之楔形間隔件24、一光導 136199.doc -10- 200941747 構件26及配置於該光導構件26中或其上的反射表面28。透 鏡陣列22引導折射之陽光穿過楔形間隔件24並使其聚焦於 光導構件26中的反射表面28上。每一反射表面經定位以自 該透鏡陣列之至少一個透鏡接收陽光。楔形間隔件24藉由 使每一透鏡與其在光導構件中之接收反射表面保持間隔相 同距離而保證每一透鏡將陽光聚焦於一反射表面上。光導 構件26中之該等反射表面可為鏡面，其等或多或少相對於 垂直軸可具有一實質上45度之角》藉由透鏡陣列折射穿過 Ο 楔形間隔件及藉由該等鏡面反射之陽光係藉由光導構件引 導至一準直器30，諸如一複式抛物面準直器，該準直器其 後進一步將陽光集中及引導至一太陽能電池32。 光導構件可為空心，及可填充有空氣或另一氣體，或被 抽空以提供一真空。當光導構件為空心時，底表面及頂表 面上之反射表面可在内表面或外表面上，其中底表面上之 一反射表面為全反射，頂表面之反射表面為部分反射。在另 ❹ 一實施例中，光導構件可為固態及由具有一期望之折射率 的光傳導材料組成。在此實施例中，在光導構件之底表面 及頂表面上的反射表面係在外表面上。楔形間隔件係用具 有一期望之折射率之膠4〇而固定至光導構件。 因為太陽自東至西移動，透鏡陣列被不斷地定向以使陽 光聚焦於光導構件之底部的反射表面上。在如圖3中所示 之個實施例中’此係藉由使透鏡陣列22如箭頭A-A指示 的水平地橫跨横形間隔件移動而同時保持楔形間隔件24及 光導構件26固定而達成，在另一實施例中，使楔形間隔件 136199.doc •11- 200941747 24及光導構件26如箭頭B_B指示的水平移動而同時透鏡陣 列22保持固定。在透鏡陣列22保持固定而楔形間隔件及光 導構件被移動之實施例中，僅楔形間隔件及光導構件需要 密封於一耐候性外殼中，以保護該等移動部分免受雨、 塵、風及其類似物之侵擾。在只有透鏡陣列被移動之實施 — 例中，該完整之組裝件應密封於一耐候性外殼中以保護其 免受大自然因素的侵擾。 操作一太陽能收集器系統以隨太陽自東移動至西而追蹤 ❿ 太陽，此可以熟悉此項技術者已知的不同方式執行。舉例 而言’可使用之一種該追蹤結構包括一光二極體電池之陣 列，其放置於透鏡陣列22之該等透鏡的一個之下。該光二 極體電池陣列係用於定位來自該透鏡之陽光的焦點之位 置。藉由一耗合至一驅動機構的電子電路，可調整透鏡陣 列22之位置以使光輸出最大化。應瞭解，可使用適於放置 透鏡陣列以追縱太陽之移動的其他結構。 參考圖3’在操作期間’一太陽光線34進入透鏡陣列22 ® 之一透鏡36，藉由透鏡36折射，穿過楔形間隔件24並進入 光導構件26。光導構件26中之該太陽光線撞擊於反射表面 28上並藉由該等反射表面28、光導構件之頂端上的半銀反 射表面42、另一反射表面28反射，且最終至複式抛物面準 直器30上’該準直器隨太陽光線移向太陽能電池32而引導 及進一步集中該太陽光線。 由於該太陽追縱結構’在空氣中光在正好到達準直器3〇 之前的角展度（angular spread)小於26度。該複式抛物面準 136199.doc 12 200941747 直器30可或多或少將此角展度增加至約9〇度。因此，藉由 使用一準直器’可減少太陽能電池之大小，繼而減少系統 之初始成本。 為避免楔形間隔件24與光導構件26之間之介面上的菲、、里 爾（Fresnel)損耗，用一具有一低折射率之膠將該楔形間隔 件附接至該光導構件。因為光導中之光具有一有限之角展 - 度，陽光可藉由全内反射而保持在光導構件26中》若光導 構件中之角展度為正或負36度，發現具有一小於137之折 ❹ 射率的膠可提供良好之結果，其中光導之折射率為15。 具有此低折射率之膠或多或少可將菲涅爾（Fresnel)損粍從 約8%減少至約0.2%»另外，在透鏡空氣介面處之菲涅爾 (Fresnel)損耗可藉由使用一抗反射塗層而避免或大體上減 少。 參考圖4 ’顯示-實施例，其中透鏡陣列22、楔形間隔 #24及光導構件26被麵合在—起以形成—沒有移動部分的 组裝件。透鏡陣列係'用具有-低折射率之膠44而固定 至楔形間隔件，且楔形間隔件係用具有一低折射率之㈣ 而固定至光導構件。所有構件均被牢固地搞合至彼此。在 . #作中，該完整之組裝件，而不僅僅係-單-構件，係藉 * ϋ動結構而放置以隨太陽自東移動至西而持續地面向 太陽。在所有構件均被固定至彼此之此實施例中，該組裝 牛可位於冑候性外殼中以保護其免受大自然因素的侵 擾。此處亦應注意，取決於安裝類型，此組裝件可被麵合 驅動疋位結構，該驅動定位結構使該完整之組裝件滑 136I99.doc 200941747 動（箭頭B)、樞軸轉動（箭頭c)及/或旋轉（箭頭D)以追蹤來 自太知之陽光。 雖然已顯示及描述及指出如應用於較佳實施例的本發明 之基本新穎特徵，但是應瞭解在不脫離本發明之精神下， 熟悉此項技術者可做出所繪示之裝置之形式及細節及在操 作中的多種省略及替代及變化。 【圖式簡單說明】 圖1係一先前技術太陽輻射收集系統之一視圖，該系統 使用一單一透鏡以收集及引導陽光至一太陽能電池； 圖2係一先前技術太陽輻射收集系統之一截面，其中— 太陽能電池位於一抛物面反射器之焦點上及該裝置繞其軸 旋轉以使陽光之收集最大化； ' 圖3係根據此處揭示之本發明之原理的一太陽輻射收集 系統之光學器件的一實施例之一截面視圖；及 圖4係根據此處揭示之本發明之原理的一太陽輻射收集 系統之光學器件的另一實施例之一截面視圖。 μ 【主要元件符號說明】 10 透鏡 12 透鏡10之焦距 14 太陽能電池 16 抛物面反射器 18 太陽能電池 20 太陽能收集器系統 22 透鏡陣列 136199.doc -14- 200941747 24 楔形間隔件 26 光導構件 28 反射表面 30 準直器 32 太陽能電池 34 陽光 36 40 透鏡 膠 ❿ 42 44 半銀反射表面 膠 A-A 指示透鏡陣列22移動方向的箭頭 B-B 指示楔形間隔件24及光導構件26移動方向的箭頭 B 指示組裝件滑動方向的箭頭 C 指示組裝件植轴轉動方向的箭頭 D 指示組裝件旋轉方向的箭頭 ❹ i36199.doc • 15-200941747 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention generally relates to collectors configured to collect electromagnetic radiation, and in particular, the present invention relates to having a collection and concentration directed to A collection of optical components of the solar collector's sunlight. This patent application claims the benefit of U.S. Provisional Application No. 60/987,43, filed on Nov. 13, 2007. [Prior Art] 太阳能 Solar collectors have used optical components to change the direction of incident sunlight. Examples of such solar collectors are disclosed in Russian Patent No. 2, 135, 909, U.S. Patent No. 4,344,417, and U.S. Patent No. 4,505,264. In the Russian patent, a hollow right-angled triangular member of transparent glass or plastic is disclosed to redirect light. The light enters the right-angled edge and is reflected from the beveled edge of the triangular member and the inner surface of the right-angled edge to be guided to a photovoltaic module at the bottom of the triangular member. U.S. Patent No. 4,344,41, the entire disclosure of which is incorporated herein by reference to the entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all all U.S. Patent No. 4,505,264 discloses a slab having a series of two identical prisms having different refractive indices that continuously bend light to direct it to an edge of the sheet. A major problem related to current solar-based photovoltaic systems is that the total initial investment is relatively high compared to electricity. In some countries, for example, such as Germany, Italy, and the United States, this initial cost is 136,199.doc 200941747, which is compensated with subsidies, which makes systems such as Continuing and Qualcomm more cost effective. The factor that contributes to this relatively high initial cost is that current solar cells are made of polycrystalline or single S-materials and the price of such materials is a major factor in determining the price of solar cells. As a result, solar cells have not experienced the scale factor and corresponding price erosion predicted by Moore's Law in the semiconductor industry. The method of reducing the cost of a solar system is to reduce the amount of stone material required to manufacture the solar cell by making the solar cell smaller. This can be accomplished, provided that a system having a reduced area photovoltaic cell is provided that directs concentrated sunlight to the battery. Reference circle 1' shows a prior art solar system that directs concentrated sunlight to a solar power, pool. A lens 10 having a fixed focal length 12 is oriented to face the sun, and a solar cell 14 is positioned at the focus of the lens to receive concentrated sunlight. Because the sun moves from east to west, the lens and solar cell assembly must constantly rotate around its horizontal axis and preferably around its horizontal and vertical axes during the day to allow for a full day from dawn to dusk. Take the sun. Referring to Figure 2, there is shown a prior art solar concentrator system that does not rotate or only rotates about a single axis to draw sunlight from dawn to dusk. Two parabolic reflectors 16 are connected to form an integral unit, each of which has a solar cell 18 at its focus. The reflectors are coupled to a tracking system (not shown) that rotates the parabolic reflectors and solar cells about their horizontal axis to track the sun. One of the main disadvantages of this system is its relatively large size, and therefore care should be taken to avoid wind effects when installing it on a roof. 136199.doc 200941747 In practice, the fixed system determined is a factor of 3 to 4, Huazhong Yangguang. A system that rotates around a single axis achieves a concentration factor of 3 〇. SUMMARY OF THE INVENTION In an exemplary embodiment of the invention, a collector configured to collect and concentrate incident sunlight is disclosed. The disclosed embodiments are thin, flat and can be mounted on a roof with little concern for the effects of wind on the structure. Due to the 'use of optics' the system tracks and concentrates sunlight with a small movement of one component of the system. By having the ability to track the sun 'from dawn to dusk set © the sun can be directed to the solar cell. Since the sunlight to the photovoltaics is concentrated to the size of the photovoltaic cells, the solar cells can be reduced, which effectively reduces the cost of the solar cells and the total initial price of the solar system. In one embodiment of the invention, a solar energy system includes three optical components: a lens array, a wedge-shaped optical member positioned below the lens array, and a lens positioned below the wedge member and secured to the wedge member Light...guide member. The light guiding member has light reflecting surfaces that are positioned for use in receiving sunlight from the lens array and directing it to a solar cell located on an exit surface of one of the light guiding members. Each of the lenses in the array of lenses is fixed relative to each other and the array is positioned on the top of the wedge member. When tracking the sun, the lens array moves relative to the wedge member or alternatively, the wedge member moves relative to the lens array to direct the focused sunlight into the light guide member as the sun moves from east to west. . The reflective surface located within the light guiding member can have a substantial 45 degree angle with respect to the vertical axis. The reflective surfaces are positioned to direct refracted sunlight along the light guiding member to a collimator, such as, for example, a compound parabolic surface 136199.doc 200941747 straight Is, the collimator being positioned to direct and further concentrate light For solar cells. In another embodiment, the solar energy system includes four optical components: a lens array; a wedge-shaped optical member positioned below the lens array, fixed to a light guiding member of the wedge member; and located in the light guiding member Light reflecting surfaces 'the light reflecting surfaces are used to direct the received sunlight to a solar cell located on an exit surface of one of the light guiding members. Each lens of the lens array is fixed relative to each other and the array is slidably coupled to the chevable optical member. The lenses may be made of glass or other transparent material, and the like have two opposing surfaces, both of which are curved, or one is curved and the other is used to change the direction of the sun's rays and refract sunlight through the wedge members. Light guide member. One type of lens that can be used is called a plano-convex lens. Another type of lens that can be used is called a Fresnel type lens. A tracking structure is provided to move the lens array relative to the wedge member' or alternatively' to move the wedge member relative to the lens array to focus sunlight onto the reflective surface in the light guide member while tracking the sun. Each of the reflective surfaces located in the light guiding member may have a substantially 45 degree angle with respect to the vertical axis. The reflective surfaces are positioned to direct refracted sunlight from the lens array to a collimator, such as, for example, a compound parabolic collimator that is positioned to direct and further concentrate the received sunlight on the solar cell . In yet another embodiment, a solar energy system includes four optical components: a lens array; a wedge-shaped optical member positioned below the lens array; a light guiding member secured to the wedge member; and the light guide 136199 .doc -9- 200941747 Light reflecting surfaces within the device for directing sunlight through the light guiding member to a solar cell located on an exit surface of one of the light guiding members. In this embodiment, the lens array Fixed to the wedge-shaped optical member and used to refract sunlight through the wedge member to the reflective surfaces in the light guide member. A tracking structure is provided to rotatably and/or linearly move the complete structure to place a lens array to receive and focus sunlight on a reflective surface in the light guiding member. The reflective surface located in the light guiding member can have a substantially 45 degree angle with respect to the vertical axis and direct the received sunlight along the light guiding member to a collimator, such as, for example, a compound parabolic collimator, the collimating The device is positioned to further direct and concentrate sunlight on the solar cell. The detailed description of the present invention is set forth in the <RTIgt; Additional features of the invention will be described hereinafter, which form the subject matter of the claims of the invention. Those skilled in the art should understand that the concept and specific embodiments may be used as a basis for designing or modifying other structures to achieve the same objectives of the present invention, and such other structures are Formality does not depart from the spirit and scope of the invention. Other aspects, features, and advantages of the present invention will be more fully understood from the description of the appended claims. [Embodiment] Referring to Figure 3', there is shown one embodiment of a solar collector system 20 in accordance with the principles of the present invention. This embodiment comprises the following four optical components: a lens array 22, a transparent optical material wedge spacer 24, a light guide 136199.doc -10- 200941747 member 26 and a reflective surface disposed in or on the light guide member 26 28. The lens array 22 directs the refracted sunlight through the wedge spacers 24 and focuses them onto the reflective surface 28 in the light guide member 26. Each reflective surface is positioned to receive sunlight from at least one lens of the array of lenses. The wedge spacers 24 ensure that each lens focuses sunlight onto a reflective surface by keeping each lens at the same distance from its receiving reflective surface in the light guiding member. The reflective surfaces in the light guiding member 26 can be mirrored, which can have a substantially 45 degree angle with respect to the vertical axis, which is refracted by the lens array through the wedge shaped spacers and by the mirrors The reflected sunlight is directed by a light guiding member to a collimator 30, such as a compound parabolic collimator, which in turn further concentrates and directs sunlight to a solar cell 32. The light guiding member can be hollow and can be filled with air or another gas or evacuated to provide a vacuum. When the light guiding member is hollow, the reflecting surface on the bottom surface and the top surface may be on the inner surface or the outer surface, wherein a reflecting surface on the bottom surface is totally reflective, and the reflecting surface of the top surface is partially reflected. In another embodiment, the light guiding member can be solid and composed of a light conducting material having a desired refractive index. In this embodiment, the reflective surface on the bottom and top surfaces of the light guiding member is on the outer surface. The wedge spacer is attached to the light guiding member with a desired refractive index. As the sun moves from east to west, the lens array is continuously oriented to focus the sunlight on the reflective surface at the bottom of the light guiding member. In an embodiment as shown in FIG. 3, this is achieved by moving the lens array 22 horizontally across the horizontal spacer as indicated by arrow AA while maintaining the wedge spacers 24 and the light guide members 26 fixed. In another embodiment, the wedge spacers 136199.doc • 11- 200941747 24 and the light guide member 26 are moved horizontally as indicated by arrow B_B while the lens array 22 remains fixed. In embodiments in which the lens array 22 remains fixed while the wedge spacers and light guide members are moved, only the wedge spacers and the light guide members need to be sealed in a weather resistant outer casing to protect the moving portions from rain, dust, and wind. Intrusion of its analogues. In the practice where only the lens array is moved - in this case, the complete assembly should be sealed in a weather resistant enclosure to protect it from natural factors. Operating a solar collector system to track the sun as the sun moves from east to west can be performed in a variety of ways known to those skilled in the art. For example, one such tracking structure that can be used includes an array of photodiode cells placed under one of the lenses of lens array 22. The photodiode array is used to locate the focus of the sunlight from the lens. The position of the lens array 22 can be adjusted to maximize light output by an electronic circuit that is coupled to a drive mechanism. It will be appreciated that other structures suitable for placing the array of lenses to track the movement of the sun may be used. Referring to Figure 3' during operation, a solar ray 34 enters one of the lens arrays 22 lens 36, is refracted by the lens 36, passes through the wedge spacers 24 and enters the light guiding member 26. The solar rays in the light guiding member 26 impinge on the reflective surface 28 and are reflected by the reflective surface 28, the semi-silver reflective surface 42 on the top end of the light guiding member, the other reflective surface 28, and finally to the compound parabolic collimator The 'collimator' guides and further concentrates the sun's rays as the sun's rays move toward the solar cell 32. Due to the solar tracking structure, the angular spread of light in the air just before reaching the collimator 3〇 is less than 26 degrees. The compound paraboloid 136199.doc 12 200941747 The straightener 30 can increase this angular spread more or less to about 9 degrees. Therefore, the size of the solar cell can be reduced by using a collimator, which in turn reduces the initial cost of the system. To avoid phenanthrene and Fresnel loss at the interface between the wedge spacer 24 and the light guiding member 26, the wedge spacer is attached to the light guiding member with a glue having a low refractive index. Since the light in the light guide has a finite angular spread, the sunlight can be held in the light guiding member 26 by total internal reflection." If the angular spread in the light guiding member is positive or negative 36 degrees, it is found to have a smaller than 137. The glue with a reduced rate provides good results with a refractive index of 15 for the light guide. The glue with this low refractive index can reduce the Fresnel loss from about 8% to about 0.2%. » In addition, the Fresnel loss at the lens air interface can be used by An anti-reflective coating is avoided or substantially reduced. Referring to Fig. 4' shows, an embodiment in which the lens array 22, the wedge-shaped spacer #24, and the light guiding member 26 are brought together to form an assembly having no moving portion. The lens array is fixed to the wedge spacer by a glue 44 having a low refractive index, and the wedge spacer is fixed to the light guiding member by (4) having a low refractive index. All components are firmly fitted to each other. In the . #作, the complete assembly, not just the one-single-member, is placed by the swaying structure to continuously face the sun as the sun moves from east to west. In this embodiment where all components are secured to each other, the assembled cow can be located in the weathering enclosure to protect it from natural factors. It should also be noted here that depending on the type of installation, the assembly can be surface-driven to drive the clamping structure, which drives the complete assembly to slide (arrow B), pivot (arrow c ) and / or rotate (arrow D) to track the sun from Taizhi. While the invention has been shown and described with respect to the preferred embodiments of the present invention, it is to be understood that those skilled in the art can Details and various omissions, substitutions and changes in operation. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a view of a prior art solar radiation collection system that uses a single lens to collect and direct sunlight to a solar cell; Figure 2 is a cross section of a prior art solar radiation collection system, Wherein - the solar cell is at the focus of a parabolic reflector and the device is rotated about its axis to maximize the collection of sunlight; 'Figure 3 is an optical device of a solar radiation collection system in accordance with the principles of the invention disclosed herein A cross-sectional view of one embodiment; and Figure 4 is a cross-sectional view of another embodiment of an optical device of a solar radiation collection system in accordance with the principles of the invention disclosed herein. μ [Major component symbol description] 10 Lens 12 Focal length of lens 10 Solar cell 16 Parabolic reflector 18 Solar cell 20 Solar collector system 22 Lens array 136199.doc -14- 200941747 24 Wedge spacer 26 Light guide member 28 Reflecting surface 30 Collimator 32 Solar cell 34 Sunshine 36 40 Lens capsule 42 44 Semi-silver reflective surface glue AA arrow BB indicating the direction of movement of the lens array 22 Arrow B indicating the direction of movement of the wedge spacer 24 and the light guiding member 26 indicates the sliding direction of the assembly Arrow C indicates the arrow D of the direction of rotation of the assembly. The arrow indicating the direction of rotation of the assembly ❹ i36199.doc • 15-