201106500 •六、發明說明： 【發明所屬之技術領域】 本發明涉及一種二極體模組，特別涉及一種發光 二極體模組。 χ 【先前技術】 作為一種新興的光源，發光二極體憑藉其發光效 率高、體積小、重量輕、環保等優點，已被廣泛地應 籲 用到當前的各個領域當中，大有取代傳統光源的趨勢。 傳統的發光二極體路燈内通常安裝有多個發光二 極體。由於路燈一般被安裴於道路的一側，發光二極 體所發出的光線必須經過相應的調整才能照射道路上 指定區域，從而滿足行馱的車輛照度的需要。目前通 常係在燈具使用反光板來對光源的光線進行反射，使 之能夠朝向預定的方向出射。然而，由於反光板僅能 對發光二極體偏離其光軸較大角度的光線進行反射， 參 躲光轴附近的光線則鞭長莫及，而光軸附近的這部 分光線的光強-般較大，不能對其調整分配達致所需 光形，難以滿足實際照明需求。 【發明内容】 有鑒於此，本發明旨在提供一種發光二極體模 ’、且”可按而調節發光二極體的總出光進而達致合理 的光形。 —種發光二極體模組，其包括-發光二極體及- 201106500 與之搭配的透鏡，該發光二極體具有—第—光軸及一 出光面，所述透鏡具有一入光面及出光面，該第-光 轴穿過透鏡的入光面’至少一平面經過發光二極體第 光軸而與透鏡的出光面相交，在該平面内自透鏡的 * 以面出射的任4光線在其與第-妹夾角α處的光 強為1α，該平面内的出射光線滿足以下公式： 馨顯然，發光二極體發出的光線可經由透鏡的入光 面射入到透鏡内，經過透鏡調整之後再經由其出光面 出射。在滿足上述公式條件下，發光二極體模組在_9〇 ^度範圍内的光通量要大於^至如度範圍内的光通 置，實現按需向特定-側偏射的效果，進而獲得特定 光形。 特別地在-9 0至9 〇度的範圍内，輸出光符合公式 £ HjLh’ £::fada〇。 •訂述平面圍繞第-光軸旋轉時，該平面内任意 角度處的光強將隨著平面的旋轉在空間内呈連續分 佈。 更進一步地，對於平面内的某些角度，其光強會 隨著平面的旋轉而呈增加的趨勢；對於另外—些^ 度，其光強會隨著平面的旋轉呈減小的趨勢。 【實施方式】 如圖1-3所示’本發明的發光二極體模組包括一 201106500 發光二極體10及-罩設發光二極體1()的透鏡2〇。該 發光一極體10包括一開設一凹槽12〇的矩形基座12、 -固定於凹槽120内的發光二極體晶片14、一填充凹 槽120並向上凸出的透明封罩16及一固定於基座12 . 纟部的矩形底板18。該凹槽120的内壁面用於將發光 二極體晶片14所發出的光線朝上集中反射，以提升發 光二極體10的出光效率。該封罩16的上部呈半球形， 其外周面形成發光二極體10的出光面100。該封罩16 用於將發光二極體10内部的光線彙聚，使輸出光束更 為集中。該發光二極體10具有一光轴J (本發明所稱 ‘‘光軸”係指經過面的幾何中心且與面垂直的假想直 線下同）’自封罩16出射的光線在該光軸〗附近具 有最大的強度。 請一併參閱圖4-5，該透鏡2〇由光學性能優越的 透明材料一體成型，如PMMA或pc塑膠。為方便後 # 縯描述，此處引入一平面直角坐標系（如圖1)，其中 X軸對應於透鏡20的長度方向（即前後方向），y軸對 應於透鏡20的寬度方向（即左右方向），且由χ及y 軸所共同定義出的平面垂直於發光二極體1〇的光軸 I。該透鏡20包括一支撐部22、一導光部26及支撐部 22與導光部26之間的連接部24。在本發明中，該支 樓部22大致呈矩形，導光部26大致呈圓頂形，可以 理解地，該支撐部22及導光部26還可根據實際需求 變化為其他形狀。該支撐部22的前後兩側分別開設二 201106500 弧形的缺口 220。該連接部24· iv ι_ ,亦大致呈矩形’其面積 小於支撐部22的面積。該违始如。 貝 ^ s 連接部24形成於支撐部22 的頂面，其右側亦開設-弧形的缺口 240。該連接部 24的缺口謂的面積小於支樓部22的缺口 22〇面積。 該連接部24的前後兩側與支撐部22的二缺口 22〇的 最内端相對齊。該導光部26形成於連接部％上表面 的偏左的位置，其包括-隆起的自由曲面260及二橢 球面262。該自由曲面260位於導光部26的中部，其 # 寬度從前後兩側向中部遞減。二擴球面262分別位於 該自由曲面260左右兩側相對連接部％傾斜，每一橢 球面262的寬度從前後兩側向中部遞增。自由曲面26〇 與二糖球面262共同形成透鏡20的出光面200。該出 光面200具有-光轴π，其與光轴1彼此隔開且靠近 發光一極體模組的左侧（如圖4)。 該透鏡20在其支撐部22的底面的中部區域設一 開槽222。該開槽222四角處分別形成四内伸的尖角， 從而使開槽呈交叉十字形，四纟角用於抵靠發光二極 體10底板18的四側壁，以將發光二極體1〇定位於透 鏡20内。該透鏡20在該開槽222的頂面的中部區域 開设一上凹的自由曲面224，並在該自由曲面224的 頂面的中部進一步形成一進一步上凹的球面226 (如 圖4)。該透鏡20在其自由球面224的前後兩端被截 去一部分而形成二臺階228，用於抵壓發光二極體10 基座12的頂面而對發光二極體1〇定位。該自由曲面 201106500 224位於臺階228之上的部分與球面226共同形成透 鏡20入光面221，發光二極體10出射的光線經該入 光面221射入透鏡20的内部。該入光面221具有一光 轴III，其位於光軸I及光軸II之間且靠近光軸I。光 軸I穿過球面226及自由曲面260，光軸II穿過自由 * 曲面224。該三光轴彼此平行共面，三者共同形成的 平面將透鏡20前後等分。由於透鏡20的入光面221 的光軸III相比於發光二極體10出光面100的光轴I • 靠向透鏡20左側，自發光二極體10出射的大部分光 線均被透鏡20的入光面221向左偏折，並經過相比於 光軸III更靠左的出光面200所折射而進一步向左偏 折。由此，本發明的發光二極體模組的透鏡20可將發 光二極體10的大部分光線均集中在其左側。 基於此種在y轴方向不對稱而在X轴方向對稱的 設計，發光二極體模組的最終輸出光形參閱圖6並結 φ 合圖4，其中虛線所標示，在透鏡20左側，輸出光的 光強自光轴I向左側首先漸增並在d處達到最大，然 後再遞減並在e處衰減至較弱的水平，在f處衰減為 十分微弱的水平，進而繼續衰減為0。而在透鏡20右 側*輸出光強則一直保持向右遞減的趨勢’其中在a 處的光強比在e處的光強略大，在b處的光強與e處 的光強相當，在c處的光強與f處的光強相近。參閱 圖6中用實線標示的曲線，在透鏡20前後兩侧光形大 致對稱，光強則自光軸I處向前後方向漸增並在gh兩 201106500 處達到最大’然後再驟減為0。 請-併參閱圖7-8,由上述分析可知，在9〇 27〇 度平面（經過光軸！並平行於透鏡2〇前後兩侧的平面） 内，相對於光軸I在其左右兩側對稱出射的最終輸出 光線具有的強度大部分均不相同。更進一步地，設定 自透鏡20的出光面出射的任意光線在其與光轴！ 的夾角α處具有光強Ια，那麼當_45度<〇[<45度時（定 義朝向右侧出射的光線與料！的夹角為正值，朝向 左側出射的光線與光軸！的夹角為負值），左側光線的 強度將大於右側光線的強度；當45度$ α<67 5及_67 5 度SoK-45度時，兩側的光強大致相等；當α》67 5度 及cx^-67.5時，兩側光強趨近於零。由上述關係，可 進一步推導出下列公式： f^da<LMa * 另外，當將90-270度平面繞光軸j朝向〇_18〇度 平面（0-180度平面為經過光軸j與9〇 27〇平面垂直的 平面）旋轉時，為確保輸出光形的連續性，9〇_27〇平面 内的任意角度的光強在平面的旋轉過程中始終保持連 續分佈，以避免在被照物體上產生暗區。 應當指出，上述公式係建立在9〇_27()度平面内 的，可以理解地，由於透鏡2〇的特殊構造，介於 90-270 度平面及0-180度平面内並經過光軸〗的至少部分其 201106500 他平面内的光線也滿足上述公式。因此，對於上述各 公式適用的範圍不應當僅僅局限於上述實 =〇度平面’本領域技術人員可根據實際情： 展至其他平面内。201106500 • VI. Description of the Invention: [Technical Field] The present invention relates to a diode module, and more particularly to a light-emitting diode module. χ 【Prior Art】 As an emerging light source, LEDs have been widely used in various fields due to their high luminous efficiency, small size, light weight, environmental protection, etc., which have replaced traditional light sources. the trend of. A plurality of light-emitting diodes are usually mounted in a conventional light-emitting diode street lamp. Since the street light is generally mounted on one side of the road, the light emitted by the light-emitting diode must be adjusted accordingly to illuminate a designated area on the road to meet the needs of the vehicle illumination. Currently, it is common to use a reflector in a luminaire to reflect light from a source such that it can exit in a predetermined direction. However, since the reflector can only reflect light of a large angle of the light-emitting diode from its optical axis, the light near the hiding axis is beyond the reach of the light, and the intensity of the light near the optical axis is generally large. It is impossible to adjust the distribution to achieve the desired light shape, and it is difficult to meet the actual lighting needs. SUMMARY OF THE INVENTION In view of this, the present invention is directed to providing a light-emitting diode module, and the light output of the light-emitting diode can be adjusted to achieve a reasonable light shape. The lens includes a light-emitting diode and a lens matched with 201106500. The light-emitting diode has a first optical axis and a light emitting surface, and the lens has a light incident surface and a light emitting surface, and the first optical axis At least one plane passing through the entrance surface of the lens intersects the light exit surface of the lens through the optical axis of the light-emitting diode, and any four rays emerging from the surface of the lens in the plane are at an angle α with the first-order The intensity of the light is 1α, and the outgoing light in the plane satisfies the following formula: It is obvious that the light emitted by the light emitting diode can be incident into the lens through the light incident surface of the lens, and then through the lens and then exit through the light emitting surface. Under the condition that the above formula is satisfied, the luminous flux of the illuminating diode module in the range of _9 〇 ^ degree is greater than the illuminance of the illuminating range, so as to achieve the effect of the specific side deflection on demand, and further Get a specific light shape. Especially at -9 0 In the range of 9 degrees, the output light conforms to the formula £ HjLh' £::fada〇. • When the plane is rotated around the first-optical axis, the intensity at any angle in the plane will be in space with the rotation of the plane. Further, for some angles in the plane, the light intensity will increase with the rotation of the plane; for another degree, the light intensity will decrease with the rotation of the plane. [Embodiment] As shown in FIG. 1-3, the light-emitting diode module of the present invention includes a 201106500 light-emitting diode 10 and a lens 2 that covers the light-emitting diode 1 (). The light-emitting body 10 includes a rectangular base 12 having a recess 12〇, a light-emitting diode chip 14 fixed in the recess 120, a transparent cover 16 filling the recess 120 and protruding upward, and a transparent cover 16 The rectangular bottom plate 18 is fixed to the base portion 12. The inner wall surface of the recess 120 is used for concentrating and reflecting the light emitted by the LED chip 14 upward to improve the light-emitting efficiency of the light-emitting diode 10. The upper portion of the enclosure 16 has a hemispherical shape, and the outer peripheral surface thereof forms a light-emitting surface of the light-emitting diode 10. The cover 16 is used to concentrate the light inside the light-emitting diode 10 to concentrate the output beam. The light-emitting diode 10 has an optical axis J (referred to as the ''optical axis' The geometric center of the face is the same as the imaginary line perpendicular to the face.) The light emitted from the self-sealing cover 16 has the greatest intensity near the optical axis. Please refer to Figure 4-5 together. The lens 2 is integrally formed of a transparent material with excellent optical properties, such as PMMA or pc plastic. For the convenience of description, a plane rectangular coordinate system (such as FIG. 1) is introduced here, wherein the X axis corresponds to the longitudinal direction of the lens 20 (ie, the front-rear direction), and the y-axis corresponds to the width direction of the lens 20 (ie, the left-right direction). And the plane defined by the χ and y axes is perpendicular to the optical axis I of the light-emitting diode 1〇. The lens 20 includes a support portion 22, a light guiding portion 26, and a connecting portion 24 between the supporting portion 22 and the light guiding portion 26. In the present invention, the branch portion 22 is substantially rectangular, and the light guiding portion 26 is substantially dome-shaped. As can be understood, the supporting portion 22 and the light guiding portion 26 can be changed to other shapes according to actual needs. Two curved corners 220 of 201106500 are respectively formed on the front and rear sides of the support portion 22. The connecting portion 24·iv ι_ is also substantially rectangular in shape, and its area is smaller than the area of the support portion 22. The violation is as follows. The shell portion s is formed on the top surface of the support portion 22, and a right-hand side is also provided with an arc-shaped notch 240. The area of the notch of the connecting portion 24 is smaller than the area of the notch 22 of the branch portion 22. The front and rear sides of the connecting portion 24 are aligned with the innermost ends of the two notches 22A of the support portion 22. The light guiding portion 26 is formed at a leftward position on the upper surface of the connecting portion %, and includes a raised free curved surface 260 and a two ellipsoidal surface 262. The free curved surface 260 is located at the center of the light guiding portion 26, and its # width decreases from the front and rear sides toward the middle portion. The two spherical surfaces 262 are respectively inclined at the right and left sides of the free curved surface 260 with respect to the joint portion %, and the width of each of the ellipsoidal surfaces 262 is increased from the front and rear sides toward the middle portion. The free curved surface 26A and the disaccharide spherical surface 262 together form the light exiting surface 200 of the lens 20. The light exiting surface 200 has an optical axis π which is spaced apart from the optical axis 1 and is adjacent to the left side of the light emitting diode module (Fig. 4). The lens 20 is provided with a slit 222 in a central portion of the bottom surface of the support portion 22. The four corners of the slot 222 are respectively formed with four inwardly extending sharp corners, so that the slot is formed in a cross-shaped shape, and the four corners are used to abut against the four side walls of the bottom plate 18 of the light-emitting diode 10 to turn on the light-emitting diode. Positioned within the lens 20. The lens 20 defines a concave free curved surface 224 in a central portion of the top surface of the slit 222, and further forms a further concave spherical surface 226 (Fig. 4) in the middle of the top surface of the free curved surface 224. The lens 20 is partially cut away at the front and rear ends of the free spherical surface 224 to form a second step 228 for pressing the top surface of the base 12 of the light-emitting diode 10 to position the light-emitting diode 1'. The portion of the free-form surface 201106500 224 located above the step 228 and the spherical surface 226 form the light incident surface 221 of the lens 20, and the light emitted from the light-emitting diode 10 is incident on the inside of the lens 20 through the light incident surface 221 . The light incident surface 221 has an optical axis III between the optical axis I and the optical axis II and close to the optical axis I. The optical axis I passes through the spherical surface 226 and the free curved surface 260, and the optical axis II passes through the free * curved surface 224. The three optical axes are parallel to each other in parallel, and the plane formed by the three together divides the lens 20 back and forth. Since the optical axis III of the light incident surface 221 of the lens 20 is closer to the left side of the lens 20 than the optical axis I of the light emitting surface 100 of the light emitting diode 10, most of the light emitted from the light emitting diode 10 is received by the lens 20. The light incident surface 221 is deflected to the left and is further deflected to the left by being refracted by the light exit surface 200 which is further to the left than the optical axis III. Thus, the lens 20 of the light-emitting diode module of the present invention can concentrate most of the light of the light-emitting diode 10 on the left side thereof. Based on the design that is asymmetric in the y-axis direction and symmetric in the X-axis direction, the final output light shape of the LED module is shown in FIG. 6 and is connected to FIG. 4, where the dotted line indicates the output on the left side of the lens 20. The intensity of light first increases from the optical axis I to the left and reaches a maximum at d, then decreases and decays to a weaker level at e, decays to a very weak level at f, and continues to decay to zero. On the right side of the lens 20, the output light intensity always keeps decreasing toward the right. 'The light intensity at a is slightly larger than the light intensity at e, and the light intensity at b is equivalent to the light intensity at e. The light intensity at c is similar to the light intensity at f. Referring to the curve indicated by the solid line in Fig. 6, the light shape on the front and rear sides of the lens 20 is substantially symmetrical, and the light intensity gradually increases from the optical axis I to the front and rear directions and reaches a maximum at gh two 201106500 and then decreases to zero. . Please - and refer to Figure 7-8, from the above analysis, in the 9〇27〇 plane (through the optical axis! and parallel to the plane on the front and rear sides of the lens 2〇), relative to the optical axis I on the left and right sides The final output rays that are symmetrically emitted have mostly different intensities. Further, any light that is emitted from the light exit surface of the lens 20 is set in its optical axis! The angle α of the angle has a light intensity Ια, then when _45 degrees < 〇 [< 45 degrees (the angle between the light that is defined toward the right side and the material! is positive, the light and the optical axis that are emitted toward the left side! The angle of the light is negative), the intensity of the left ray will be greater than the intensity of the right ray; when 45 degrees $ α < 67 5 and _67 5 degrees SoK - 45 degrees, the light on both sides is equally strong; when α 67 At 5 degrees and cx^-67.5, the light intensity on both sides approaches zero. From the above relationship, the following formula can be further derived: f^da<LMa* In addition, when the 90-270 degree plane is oriented around the optical axis j toward the 〇_18 平面 degree plane (the 0-180 degree plane is the optical axis j and 9) When the 〇27〇 plane is perpendicular to the plane), in order to ensure the continuity of the output light shape, the intensity of any angle in the plane of 9〇_27〇 is always continuously distributed during the rotation of the plane to avoid the object being illuminated. A dark area is created on it. It should be noted that the above formula is established in the plane of 9〇_27() degrees. It is understandable that due to the special configuration of the lens 2〇, it is in the 90-270 degree plane and the 0-180 degree plane and passes through the optical axis. At least part of its 201,106,500 light in his plane also satisfies the above formula. Therefore, the range applicable to each of the above formulas should not be limited to the above-described real = 平面 degree planes. Those skilled in the art can expand to other planes according to the actual situation.
月參閱圖8_1G’該透鏡2()在三維空間内對發光二 極體1〇光線的調節亦遵循-定規律。參見圖8:取自 透鏡2〇出光面任意一處出射的光線，其在三維空 間内具有向里7(圖8為透鏡的俯視圖，由於該俯視圖 的局限性’目此從® 8來看該向量/僅為平行於透鏡底 實際上’該向量7還應當在沿光軸I的方向上有一 定延伸里）。该向量7在0_18〇度平面及9〇 27〇度平面 上，影出二分量（及乃，三者滿足關係/ = /1+/-2。該分 t里Λ在0-180度平面内與光軸j成夾角φ，設定當該 刀向里厂朝向透鏡20前侧出射時與光軸j的夾角為負 值，朝向透鏡20後側出射時與光軸【的夾角為正值， 那麼夾角φ的變化範圍為_9〇〜9〇度。分向量忍在9〇 27〇 度平面内與光軸1成夾角Θ，設定當該分向量/2朝向透 鏡20左侧時與光軸j的夾角為負值，朝向透鏡2〇右 側4與光軸I的夾角為正值，那麼夾角θ的變化範圍 亦為-90〜90度。定義光向量/的強度為Ι(φ，Θ)，由透 鏡20出光面200出射的光在三維空間内符合公式： Φ, ~~ - arcsiii^os^si^arci^ ^-)) 201106500 + arctgt-^-~dic^{cos0^n(arctgt^-)))d(pde ; tg〇 tge Φ 2 =广广/ /(0，0)4(arcig - arcsin(cos psin(arcig J-n/2J0 tg(p tg(p + arctg - Mcsin(cos0sin(arctg^^-)))d<pde tg〇 tge 其中化及Φ2分別為相應的光通量，二者滿足關 係 Φ0Φ2。Referring to Fig. 8_1G', the lens 2() adjusts the light of the light-emitting diode 1 in a three-dimensional space to follow a regular law. See Fig. 8: Light taken from any part of the exit surface of the lens 2, which has an inward 7 in three dimensions (Fig. 8 is a top view of the lens, due to the limitations of the top view). The vector / is only parallel to the bottom of the lens. In fact, the vector 7 should also have a certain extension in the direction along the optical axis I). The vector 7 is on the 0_18 平面 degree plane and the 9 〇 27 平面 degree plane, and the two components are formed (and, the three satisfy the relationship / = /1 +/- 2. The point t is in the plane of 0-180 degrees An angle φ with the optical axis j is set to be a negative angle with the optical axis j when the blade is directed toward the front side of the lens 20, and a positive angle with the optical axis when the lens is emitted toward the rear side of the lens 20, then The angle φ varies from _9〇 to 9〇. The sub-vector is in the angle of 9〇27〇 in the plane of the optical axis 1, and is set to the left side of the lens 20 and the optical axis j. The included angle is a negative value, and the angle between the right side 4 of the lens 2 与 and the optical axis I is a positive value, and the angle θ varies from -90 to 90 degrees. The intensity of the defined light vector / is Ι (φ, Θ), The light emitted by the light exiting surface 200 of the lens 20 conforms to the formula in three dimensions: Φ, ~~ - arcsiii^os^si^arci^ ^-)) 201106500 + arctgt-^-~dic^{cos0^n(arctgt^- )))d(pde ; tg〇tge Φ 2 = 广广 / /(0,0)4(arcig - arcsin(cos psin(arcig Jn/2J0 tg(p tg(p + arctg - Mcsin(cos0sin(arctg^ ^-)))d<pde tg〇tge where φ and Φ2 are the corresponding luminous fluxes, respectively The person satisfies the relationship Φ0Φ2.
由上述公式可知，透鏡20可將發光二極體10的 光線在三維空間内調節成理想狀態，使朝向不同空間 方向出射的光通量相異，從而獲得良好的偏光效果。 應當指出，上述公式僅僅係取90-270度及0-180 度二平面作為參考平面而得出的，可以理解地，還可 以從透鏡20上截取其他經過光轴I且彼此垂直的二平 面作為參考平面，上述公式同樣適用於其他該等平面 中的至少一部分平面。It can be seen from the above formula that the lens 20 can adjust the light of the light-emitting diode 10 to a desired state in a three-dimensional space, and the luminous fluxes that are emitted toward different spatial directions are different, thereby obtaining a good polarizing effect. It should be noted that the above formula is obtained by taking only two planes of 90-270 degrees and 0-180 degrees as reference planes. It is understood that other planes passing through the optical axis I and perpendicular to each other can also be taken from the lens 20 as For the reference plane, the above formula applies equally to at least a portion of the planes in other such planes.
當將多個發光二極體模組應用於安裝於道路一側 的路燈或其他室外照明燈具内時，使其X軸與道路縱 向平行，y軸與道路橫向平行且其缺口 240朝向道路 外側，該等發光二極體模組的大部分輸出光將沿道路 橫向投射在道路的中部，從而為道路上行駛的車輛提 供充分的照度。此外，輸出光沿道路縱向呈現對稱分 佈，其可使道路縱向獲得一較為均勻的照明，以確保 車韩的行欲安全。 11 201106500 综上所述，由於透鏡20位於發光二極體10的上 方，發光二極體10所出射的光線均必須經過透鏡20 的入光面221之後才能自其出光面200出射至外部空 間内，因此，發光二極體10出射的光線中，無論係大 角度偏離光軸I的光線，還係位於光軸I附近的光線， 均會被透鏡20所調整，從而使最終輸出光具有一理想 的光形分佈。 在上一實施例中，透鏡20的入光面221及出光面 200以及發光二極體10的出光面100兩兩錯開（即面 的中心不正對），可以理解地，在不對輸出光造成太大 影響的情況下，透鏡20的入光面221及出光面200以 及發光二極體10的出光面100中也可僅有兩個彼此錯 開。例如，將透鏡20的入光面221與其出光面200正 對而僅將發光二極體10的出光面100錯開，或者將透 鏡20的出光面200與發光二極體10的出光面100正 對而僅將透鏡20的入光面221錯開，以及將透鏡20 的入光面221與發光二極體10的出光面100正對而將 透鏡10的出光面200錯開等等。當然，三者均錯開可 更有效地實現偏光作用。 還可以理解地，由於透鏡20的左右兩侧不等的厚 度亦係促成左右兩側出射光強相異的因素之一，因 此，通過調節透鏡20左右兩側厚度間的差值，可調整 發光二極體模組的整體偏光效果。 應當指出，本發明所稱的“軸穿過面”係指軸線不 12 201106500 完全落在面内，即軸線至少有一部分穿出於面外，本 發明所稱的“面經過軸”則係指軸完全落在面内，本發 明所稱的“兩個面交於軸”係指兩個面的交線與軸重 合，本發明所稱的“面相對面偏置”係指兩個面之間彼 此錯開。 另外，本發明所稱的“入光面”及“出光面”係指有 光線經過的面，沒有光經過的面不能稱為本發明的“入 光面”及“出光面”。 ® 應當指出，在本發明中，經過光轴的平面係假想 的平面，實體面則存在於發光二極體10及透鏡20構 造上。 可以理解地，雖然本發明的透鏡20係用於替代傳 統技術中的反光板來對發光二極體10的光線進行調 整，但並不排除將傳統技術中的發光板與本發明的透 鏡20 —同使用的情形。實際上，透鏡20與反光板組 φ 合使用能更精准地對發光二極體10的光線調整，使輸 出光形更能滿足道路照明的需求。另外，雖然上述實 施例中的發光二極體模組係以應用於道路照明來舉 例，在需要與該發光二極體模組配光曲線相同或相近 的其他場合也適用，如走廊、庭院、機場跑道等，而 不應當將本發明的主旨理解為局限於道路照明。 另外，應當理解地，本發明所稱的照明不僅僅局 限於各種燈具，其他相關光學應用，如指示、標識、 13 201106500 背光等亦屬於本發明所稱的照明領域。 乡示上所述，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 佳貝^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。 【圖式簡單說明】 圖1係本發明的發光二極體模組的立體組裝圖。 圖2係圖丄的倒置圖，此時發光二極體模組的發 光二極體被移去以方便觀察。 圖3係圖1沿剖線ΙΠ_ΙΠ的截面圖。 圖4係圖1沿剖線IV-IV的截面圖。 圖5係圖1的俯視圖。 圖6不出了圖i的發光二極體模組在工作時的配 光曲線。 圖7示出了發光二極體模組的示例光路。 圖8不出了透鏡的〇_18〇度平面及9〇 27〇度平面。 圖9不出了透鏡出射的任意光線在〇18〇度平面 内的偏角。 班0示出了透鏡出射的任意光線在9〇·27〇度平 面内的偏角。 201106500 【主要元件符號說明】 發光二極體 10 入光面 100 基座 12 凹槽 120 晶片 14 封罩 16 底板 18 透鏡 20 出光面 200 支撐部 22 缺口 220 入光面 221 開槽 222 自由曲面 224 球面 226 臺階 228 連接部 24 導光部 26 自由曲面 260 橢球面 262 15When a plurality of light emitting diode modules are applied to a street lamp or other outdoor lighting fixture mounted on one side of the road, the X axis thereof is parallel to the longitudinal direction of the road, the y axis is parallel to the road transverse direction, and the notch 240 faces the outside of the road. Most of the output light of the LED modules will be projected laterally along the road in the middle of the road to provide sufficient illumination for the vehicles on the road. In addition, the output light is symmetrically distributed along the longitudinal direction of the road, which allows a relatively uniform illumination of the road longitudinally to ensure the safety of the car. 11 201106500 In summary, since the lens 20 is located above the light-emitting diode 10, the light emitted by the light-emitting diode 10 must pass through the light-incident surface 221 of the lens 20 before being emitted from the light-emitting surface 200 into the external space. Therefore, among the light rays emitted from the light-emitting diode 10, the light rays which are located near the optical axis I regardless of the light angle I are adjusted by the lens 20, so that the final output light has an ideal. Light distribution. In the previous embodiment, the light incident surface 221 and the light exit surface 200 of the lens 20 and the light exit surface 100 of the light emitting diode 10 are staggered (ie, the center of the surface is not facing), and it is understood that the output light is not caused too much. In the case of a large influence, only two of the light incident surface 221 and the light exit surface 200 of the lens 20 and the light exit surface 100 of the light emitting diode 10 may be shifted from each other. For example, the light incident surface 221 of the lens 20 is opposite to the light exit surface 200, and only the light emitting surface 100 of the light emitting diode 10 is shifted, or the light emitting surface 200 of the lens 20 is directly opposite to the light emitting surface 100 of the light emitting diode 10. Only the light incident surface 221 of the lens 20 is shifted, and the light incident surface 221 of the lens 20 is aligned with the light exit surface 100 of the light emitting diode 10 to shift the light exit surface 200 of the lens 10. Of course, all three are staggered to achieve a more effective polarization. It can also be understood that since the thickness of the left and right sides of the lens 20 is also one of the factors that cause the light intensity to be different on the left and right sides, the brightness can be adjusted by adjusting the difference between the thicknesses of the left and right sides of the lens 20. The overall polarizing effect of the diode module. It should be noted that the term "shaft passing surface" as used in the present invention means that the axis is not 12 201106500 completely falls in the plane, that is, at least a part of the axis is out of the plane, and the "face passing shaft" referred to in the present invention means The axis completely falls within the plane, and the term "two faces intersecting the axis" as used in the present invention means that the intersection of the two faces coincides with the axis, and the term "face-to-face offset" as used in the present invention means between the two faces. Staggered from each other. Further, the term "light-incident surface" and "light-emitting surface" as used in the present invention means a surface through which light passes, and the surface through which light does not pass may not be referred to as "light-incident surface" and "light-emitting surface" of the present invention. ® It should be noted that in the present invention, the plane passing through the optical axis is an imaginary plane, and the solid surface exists in the structure of the light-emitting diode 10 and the lens 20. It can be understood that although the lens 20 of the present invention is used to replace the light reflecting plate in the conventional technology to adjust the light of the light emitting diode 10, it is not excluded that the light emitting plate in the conventional art is combined with the lens 20 of the present invention. The same situation of use. In fact, the combination of the lens 20 and the reflector group φ can more precisely adjust the light of the LED 10, so that the output shape can better meet the needs of road lighting. In addition, although the light-emitting diode module in the above embodiment is exemplified for application to road lighting, it is also applicable to other occasions that are the same as or similar to the light distribution curve of the light-emitting diode module, such as a corridor, a courtyard, Airport runways and the like, and the subject matter of the present invention should not be construed as being limited to road lighting. In addition, it should be understood that the illumination referred to in the present invention is not limited to a variety of luminaires, and other related optical applications, such as indications, logos, 13 201106500 backlights, etc., are also within the field of illumination referred to in the present invention. As stated in the township, the invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above is only a preferred method of the present invention, and it is not possible to limit the scope of the patent application in this case. Equivalent modifications or variations made by those skilled in the art to 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 perspective assembled view of a light emitting diode module of the present invention. Fig. 2 is an inverted view of the image, in which the light-emitting diode of the light-emitting diode module is removed for convenient observation. Figure 3 is a cross-sectional view of Figure 1 taken along line ΙΠ_ΙΠ. Figure 4 is a cross-sectional view taken along line IV-IV of Figure 1. Figure 5 is a plan view of Figure 1. Fig. 6 shows the light distribution curve of the light-emitting diode module of Fig. i during operation. Figure 7 shows an example light path for a light emitting diode module. Figure 8 shows the 〇18-degree plane and the 9〇27-degree plane of the lens. Figure 9 shows the yaw angle of any light exiting the lens in the 〇18〇 plane. Class 0 shows the off angle of any light exiting the lens in the 9 〇 27 〇 degree plane. 201106500 [Description of main components] Light-emitting diode 10 Light-incident surface 100 Base 12 Groove 120 Wafer 14 Enclosure 16 Base plate 18 Lens 20 Light-emitting surface 200 Support 22 Notch 220 Light-in surface 221 Slot 222 Free-form surface 224 Spherical 226 step 228 connecting portion 24 light guiding portion 26 free curved surface 260 ellipsoidal surface 262 15