M420709 五、新型說明： 【新型所屬之技術領域】 本案係一種透鏡結構改良，特別係指一種利用透鏡折射之方式，使光 源之光線經折射後將光均勻散出，且減少光散射效果之透鏡結構改良。 【先前技術】 發光二極體因為具有高亮度、體積小、省電等優點，已被廣泛使用於 燈具或看板上作爲照明光源’由於發光二極體相較於傳統燈源其光線發散 角度較小，於照射時光線較集中，造成光源鄰近處及遠離處亮度的差異， 無法使光源均勻的照射，因此業者係利用二次光學原理，使用透鏡作二次 折射’以改變發光二極體的光學性能。 然而，發光二極體係可依其使用用途不同發光二極體需搭配不同的透 鏡，以產生不同效果之燈光光線及效果，其中，目前應用於路燈的發光二 極體於發光測罩設有發光二極體透鏡，使發光二極體光線經過透鏡後將光 線射出於透鏡表面’形成偏移折射的光線，以調整光線投射於特定的方向， 然-般路燈係設置於來往ϋ路的兩側，依習知透鏡一般為簡單的球面或非 球面曲面折赫構，所能提供之發光二極趙光線產生偏移折射效果，無法 有效的將光均勻擴散以縣於道路上，使其光線集巾在路燈設置處的下 方’造成道路照明效果不彰。 有鑑於此’本創作人憑於從事該項產業多年累積經驗，針對現行路燈 光線照射情形及效果，已陸續提出並經核准公告在案之台灣公告號 M3_專利，糊透鏡出光面之凸趙及人光面喃之結構改良使該發 光二極體之光驗由該透鏡後得以產生均勻亮度之騎區域效果。於此本 3 M420709 創作人更進一步研發出可使該發光二極體之光源，使用效率增加及更能產 生均勻亮度照射區域效果之透鏡結構改良，使夜間用路人更能安全行欲。 【新型内容】 鑑於解決上述問題，本創作提出一種透鏡結構改良，該方案具有達到 使光源之光線經折射後將光均勻散出’且減少光散射效果之優點。 本創作係為一種透鏡結構改良，係包含有： 一本體，該本體設有一出光面及一入光面，該出光面係為一橢圓凸體； 而該入光面係設有一凹槽，該凹槽係由三個曲面所組成。 本創作之主要目的在於：藉由，上述透鏡結構，當一光源發射光線經 由該凹槽之曲面進入本體產生折射光線，並透過該本體由該出光面之橢圓 凸體將光均勻散出。 本創作之次要目的在於：利用發光二極體光源之光線透過由三個曲面 所組成之凹槽，使光線有效折射並降低散射效果。 【實施方式】 為便於說明本案於上述新型内容一欄中所表示的中心思想，茲以具體 實施例表達。實施例中各種不同物件係按適於例舉說明之比例，而非按實 際元件的比例予以繪製，合先敘明。 如第一圖〜第二圖圖式所示，本創作係為一種透鏡結構10改良，係包含 有： 一本鱧11，該本想11設有一出光面12及一入光面13，該出光面12係為 一满圓凸趙，該擴圓凸趙係具有一長轴a及一短轴b ;而該入光面13係設有 一凹槽14，並於凹槽14兩側係凸設有兩柱體15，該入光面13係形成一霧化 層16 ’增加光源柔和性’該凹槽14係由三個曲面所組成，且該凹槽14之曲 面係以該短轴b為中心線左右對稱。 明瞭上述本案詳細結構後，以下係針對本案之動作原理逐一詳細說明： 如第三圖〜第四圖圖式所示，係將本創作該透鏡結構10以該兩柱體15 結合於一發光二極體20燈板上，該透鏡結構10之入光面13係設有該凹槽 14 ’係供該發光二極趙2〇之光源直接套射連結，當該發光二極體2〇光源由 該凹槽14照射時，該凹槽14因係由該三個曲面所組成呈三角錐狀，該凹槽 14曲面係以該短軸b為中心線左右對稱，其相較於非對稱曲面之凹槽更能有 效利用光線減少散射，故當發光二極體2〇光源之光線經過該入光面13之凹 槽14時，光線經過該凹槽14作第一次折射； 此時光線經由三個曲面形成偏移折射的光線進入該本體川内，並減少光線 散射使得光線的使用效率增加，其偏移折射光線進入該本體Μ後，其光線 經疊加後’光線經由該出光面12之橢圓凸體作第二次折射，形成均勻的光 線發散出來(如第五圏所示），使其光線經由該透鏡結構10形成之光束，能 擴張其照射範圍。再者，部份光線於出光面12發生全反射現象，會往該入 光面13方向反射，且由於該入光面13係形成有該霧化層16，使全反射之 光線透過該霧化層16再次往出光面彳2反射，更得以使發散出的光線增加 柔和性減少眩光’並使該透鏡結構10可達到擴張其照射範圍，及減少光散 射使光線使用效率增加之目的。 如第六圖圖式所示，係本創作施用於路燈光線照射之示意圖，係將複 數個該透鏡結構10利用該兩柱體15結合於該發光二極體20燈板上，當該發 光二極體20之光源透過該透鏡結構1〇經二次折射後，使光線得以均勻發 M420709 散，而形成裝有該發光二極體20燈板之路燈，其照射範圍得以擴張。 雖然本案是以一個最佳實施例做說明，但精於此技藝者能在不脫離本 案精神與範疇下做各種不同形式的改變。以上所舉實施例僅用以說明本案 而已，非用以限制本案之範圍。舉凡不違本案精神所從事的種種修改或變 化，俱屬本案申請專利範圍。 M420709 【圖式簡單說明】 第一圖係本創作之立體結構示意圖(一）。 第二圖係本創作之立體結構示意圖(二）。 第三圖係本創作實施態樣剖面示意圖(一）。 第四圖係本創作實施態樣剖面示意圖(二）。 第五圖係本創作光照度模擬驗證分佈圖。 第六圖係本創作施用於路燈照射之實施例。 【主要元件符號說明】 透鏡結構10 本體11 出光面12 入光面13 凹槽14 柱體15 霧化層16 發光二極體20 長轴a 短軸b 7M420709 V. New description: [New technical field] This case is a lens structure improvement, especially refers to a lens that uses lens refraction to make the light of the light source refracted to evenly disperse the light and reduce the light scattering effect. Structural improvement. [Prior Art] Because of its high brightness, small size, and power saving, the light-emitting diode has been widely used as a light source for lighting or kanbans because of the light divergence angle of the light-emitting diode compared with the conventional light source. Small, the light is concentrated at the time of illumination, causing the difference in brightness between the light source and the remote area, and the light source cannot be uniformly irradiated. Therefore, the industry uses the principle of secondary optics to use the lens for secondary refraction to change the light-emitting diode. Optical performance. However, the light-emitting diode system can be combined with different lenses according to different uses of the light-emitting diodes to generate different effects of light and effects. Among them, the light-emitting diodes currently used in street lamps are provided with illumination in the illumination cover. The diode lens allows the light of the LED to pass through the lens and emits light onto the surface of the lens to form an offset refracted light to adjust the light to be projected in a specific direction. The street lamp is placed on both sides of the road. According to the conventional lens, the lens is generally a simple spherical or aspherical surface. The light-emitting diode Zhao can produce an offset refraction effect, which cannot effectively spread the light evenly on the road, so that the light is set. The towel is below the streetlight setting, which makes the road lighting effect ineffective. In view of this, the author has relied on the accumulated experience of the industry for many years, and has been proposed and approved by the Taiwan Bulletin No. M3_Patent, which has been approved for the current road lighting line. The structural improvement of the human face is such that the light of the light-emitting diode is subjected to the riding region effect of uniform brightness. In this 3 M420709 creator further developed a lens structure that can increase the efficiency of use of the light source of the light-emitting diode and more uniform illumination area, so that the passers-by at night can be safer. [New content] In order to solve the above problems, the present invention proposes an improvement in the lens structure, which has the advantages of achieving uniform light emission after the light of the light source is refracted and reducing the light scattering effect. The present invention is a lens structure improvement, comprising: a body, the body is provided with a light emitting surface and a light incident surface, the light emitting surface is an elliptical convex body; and the light incident surface is provided with a groove, The groove is made up of three curved surfaces. The main purpose of the present invention is: by the above lens structure, when a light source emits light through the curved surface of the groove into the body to generate refracted light, and through the body, the light is evenly scattered by the elliptical convex body of the light emitting surface. The second objective of this creation is to use the light from the light-emitting diode source through a groove composed of three curved surfaces to effectively refract light and reduce the scattering effect. [Embodiment] The central idea expressed in the column of the above novel content for convenience of explanation is expressed by a specific embodiment. The various items in the examples are drawn to scales as illustrated and not to the proportions of the actual elements. As shown in the first to second drawings, the present invention is an improvement of a lens structure 10, which comprises: a book 11 having a light-emitting surface 12 and a light-incident surface 13 for emitting light. The surface 12 is a full circle convex Zhao, the extended convex system has a long axis a and a short axis b; and the light incident surface 13 is provided with a groove 14 and is convex on both sides of the groove 14 There are two cylinders 15, the light incident surface 13 forms an atomization layer 16 'increasing the light source softness'. The groove 14 is composed of three curved surfaces, and the curved surface of the groove 14 is the short axis b The center line is bilaterally symmetrical. After clarifying the detailed structure of the above case, the following is a detailed description of the operation principle of the present invention: As shown in the third to fourth figures, the lens structure 10 is combined with the two cylinders 15 to The light-emitting surface 13 of the lens structure 10 is provided with the groove 14' for direct connection of the light source of the light-emitting diode 2, when the light-emitting diode 2 When the groove 14 is irradiated, the groove 14 is formed into a triangular pyramid shape by the three curved surfaces, and the curved surface of the groove 14 is bilaterally symmetric with the short axis b as a center line, which is compared with the asymmetric curved surface. The groove can effectively utilize the light to reduce the scattering, so when the light of the light-emitting diode 2 〇 light source passes through the groove 14 of the light-incident surface 13, the light is refracted through the groove 14 for the first time; The curved surface forms the offset refracted light into the body, and reduces the light scattering to increase the use efficiency of the light. After the offset refracted light enters the body ,, the light is superimposed and the ray is convexly convex through the illuminating surface 12 The body is refraction for the second time, forming a uniform The light rays are diverged (as shown in the fifth )), and the light beam formed by the lens structure 10 is expanded to extend its illumination range. In addition, a part of the light is totally reflected on the light-emitting surface 12, and is reflected in the direction of the light-incident surface 13. Since the light-emitting surface 13 is formed with the atomization layer 16, the total reflection light is transmitted through the atomization. The layer 16 is again reflected toward the exit surface 彳2, so that the emitted light is increased in softness to reduce glare, and the lens structure 10 can be expanded to expand its illumination range, and the light scattering is reduced to increase the light use efficiency. As shown in the figure of the sixth figure, a schematic diagram of the application of the illumination to the road light line is performed by combining a plurality of the lens structures 10 with the two pillars 15 on the light-emitting diode 20, when the light-emitting two After the light source of the polar body 20 is secondarily refracted through the lens structure 1, the light is uniformly emitted M420709, and the street lamp equipped with the light-emitting diode 20 is formed, and the illumination range is expanded. Although the present invention is described in terms of a preferred embodiment, those skilled in the art can make various changes in the form without departing from the spirit and scope of the invention. The above embodiments are only used to illustrate the present case and are not intended to limit the scope of the present invention. All kinds of modifications or changes that are not in violation of the spirit of this case are the scope of patent application in this case. M420709 [Simple description of the diagram] The first diagram is a schematic diagram of the three-dimensional structure of this creation (1). The second picture is a schematic diagram of the three-dimensional structure of the creation (2). The third picture is a schematic cross-sectional view of the implementation of this creation (1). The fourth picture is a schematic cross-sectional view of the implementation of this creation (2). The fifth picture is the distribution map of the illuminance simulation verification of this creation. The sixth figure is an embodiment in which the present application is applied to streetlight illumination. [Major component symbol description] Lens structure 10 Body 11 Light-emitting surface 12 Light-incident surface 13 Groove 14 Column 15 Atomization layer 16 Light-emitting diode 20 Long axis a Short axis b 7