201122322 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種發光組件，特別係指一種發光二極體元 件。 【先前技術】 [0002] 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，已被廣泛地應用到當前 的各個領域當中’大有取代傳統光源的趨勢。 [0003] 直接自發光二極體出射的光線往往不能很好地滿足照明 需求，目前一般採用在發光二極體上加裝透鏡的方式來 對其輸出光型進行調整。根據對先線調節效果的不同’ 透鏡又可分為聚光型及散光型兩種。由於照明領域通常 對光強要求較〶，S此聚光型透鏡在該領域應用更為廣 泛。然而’目前常用㈣光型錢縣束張角的控制能 力不足，導致部分光線以較大角度出射，從而造成輸出 光型的邊緣發黃或者出現亮_現象，不做產業應用 〇 【發明内容】 [0004] [0005] 098144085 本發明旨在提供—種發綠件，其能將輸Μ束張角控 制在較小的範圍内β 一種發光組件，其包括一透鏡及一 發光二極體，該發光 二極體具有-光轴，該透鏡包括 Α ,, 八先面、一出光面及 =面及入光面之間的外倒壁面，自發光二極體 ==的光線經透鏡的入光面及出光面折射出透 鏡外，自發光二極體以大角度出射的光線經透鏡的入光 表單編號麵 第4㈣14頁 0982( 201122322 [0006] 面折射後再經外側壁面的反射，最後由透鏡的出光面折 射出透鏡外，經外側壁面反射後的光線與光軸的夾角小 於其經外側壁面反射前與光轴的夾角。 與習知技術相比，本發明的發光組件採用透鏡的外側壁 面對大角度出射的發光二極體光線進行反射，並通過透 鏡出光面及入光面的進一步調整，使最終輸出透鏡外的 光線張角被限制在較小的範圍内，從而防止輸出光型邊 緣發黃或發亮的情況發生。 Ο [0007] 〇 098144085 【實施方式】 請參閱圖1及3，本發明的發光組件包括一發光二極體模 組10及一透鏡30。該發光二極體模組ii0包括一電路板12 及一安裝在電路板12上的發光二極邊20。該電路板12用 於支撐發光二極體20，並同時給發光二極體2〇提供能量 。該發光二極體20包括一基座22、一固定於基座22上的 晶片24及一罩住晶片24的封罩26。該基座22為矩形，其 可由絕熱材料（如塑膠）或者導熱材料（如陶瓷）製成 。該晶片24通過導熱材料（亂未示出）黏結於基座22頂 面。該封罩26固定於基座22頂面以將晶片24與外界隔絕 ’防止其受到外界環境的影響。封罩26為圓頂形，以對 晶片24發出的光線進行初步調節。該發光二極趙2〇具有 光軸I，其發出的光線關於該光轴丨旋轉對稱分佈於12〇 度的空間角内。 晴-併參閱圖2 ’透鏡3〇由透明材質如p(^pMMA等製成 ，其關於光軸I旋轉對稱。該透鏡3〇包括一定位部32及一 連接該定位部32的調光部34。該定位部32呈圓盤狀，其 第5頁/共頁 表單編號Α0Ι0Ι 0982075431-0 [0008] 201122322 底面開設有一方形的容置槽320 (如圖2)。該容置槽32〇 的口徑及深度與發光二極體2Q基座22的直彳t及高度大致 相等，以恰好將發光二極體2〇基座22收容於其中。該定 位部32的底面可通過黏結材料接合於電路板。上，以將 透鏡30與電路板12固定。該透鏡30在其内部形成一與容 置槽320連通的内腔340 ’以收容發光二極體2請封罩26 。該内腔340的内側壁面302為略向内凸出的弧面，其限 定内腔340的口徑自下至上逐漸減小。該内側壁面3〇2的 曲率變化幅度較小而接近一常麩，優選地，該常數可取 值於0· 04〜〇. ΟδπΗίΓ1之間，本實綠辦申為〇. 〇6龍-i。該 内腔340的頂面3〇1為平面，其正對於發光二極體2〇。内 腔340的内侧壁面3〇2及頂面3〇1共同形成透鏡3〇的入光 面300，自發光二極體2〇封罩26以大角衆〈大於4〇度）出 射的光線（如圖3中的光線8)經内腔3....40.的内側壁面3 〇 2 折射入透鏡30的調光部34的周緣區域，自發光二極體別 封罩26以小角度（小於或等於4{)度）出射的光線（如圖3中 的光線b)經内腔綱_面3〇1折射入透鏡30調光部34的 中部區域。 [0009] 透鏡3〇調光部34的外侧壁面303由-向上漸擴的第—圓錐 面304及陳面3〇5組成，二者曲率不同。該第—圓錐 面304呈-略向外㈣絲，其曲率變化幅度較小而接近 一常數’該常數的取值範圍優選在0.02〜0.06咖]之間 ’特別地’本實施例為G. Q4®®·1。該圓柱面3G5位於第一 圓錐面3G4上方並連接透細的出光面_，其半徑略大 於第-圓錐面304頂部的半徑（即第一圓錐面3Q4的最大 098144085 表單編號A0101 第6頁/共14頁 201122322 Ο Ο 半徑）。該第一圓錐面3〇4對於射入調光部34周緣區域的 光線的調節能力要強於圓柱面3〇5，即經過第一圓錐面 304全反射的光線與光軸I的夾角要小於經圓柱面3〇5全反 射的光線與光軸I的夾角。一凸環36水平形成於透鏡3〇調 光部34的外侧壁面303上’其位於第一圓錐面304及圓枝 面305之間並連接二者。該凸環36用於供壓板（圖未示出 )專工具抵壓而固定於電路板12上’以進一步固定透鏡 30。該調光部34的頂面由一第二圓錐面308及一圓臺面 307共同形成❶該第二圓錐面3〇8呈一内凹狀，其開口自 上至下逐漸減小。該第二圓麵I面3〇g的曲年變化幅度較大 ，其最大值接近0. lmnT1，最小值趨近於〇，均值為〇 mm 1。該圓臺面307正對於發先二極體20，其中部區域為 一圓形平面（圖未標）’圍繞該中部區域的周緣區域為 一環形凸弧面（圖未標）》圓臺面3〇7的高度小於第二圓 錐面308的高度，且其圓形平面的面積小於内腔34〇頂面 301的面積。該第二圓錐面308及圓臺面3〇7共同形成透 鏡30的出光面306，其中圓臺面307主要用於對經入光面 300的平面（印頂面301)折射的光線進行調節，第二圓 錐面308主要用於對經透鏡3〇外側壁面3〇3反射的光線進 行調節。 · [0010] 經由上述入光面300、出光面3〇6及外側壁面3〇3的共同 作用，自透鏡30出射的光線可被調節至一較小的角度範 圍（小於60度）内。特別係由於經透鏡3〇外側壁面3〇3反 射後的光線與光軸I的夾角明顯小於自外側壁面3〇3反射 前的米線與光軸I的夾角，透鏡3〇的外側壁面3〇3對於發 098144085 表單編號Α0101 第7頁/共14頁 0982075431-0 201122322 光二極體20大角度出射光線的調整效果非常顯著，使輸 出光線的張角被控制在較小的範圍内，從而有效避免輸 出光型周緣發黃或發亮的情況發生。 _]本發明上述實施财的大角度及小角度係以4()度為界限 進行劃分的’應當指出，該40度不應理解為對大角度及 小角度的範圍所作出的限定，其僅僅係—個具體的實施 方式。實際上，在20〜45度範圍内的任何角度都可作為 劃分大角度及小角度的界限，只要不偏離本發明的主題 思想即可。 [0012] 另，本文所稱曲率均係指以圖3的截面為基礎進行測算的 ’換言之’上述各曲率均係‘圖3的截面内的曲率。 [0013] 綜上所述，本發明符合發明專利要件，羑依法提出專利 申請。惟，以上所述者僅為本發明之較佳實施例，舉凡 熟悉本案技藝之人士，在爰依本發明精神所作之等效修 飾或變化，皆應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】 [0014] 圖1係本發明的發光組件中的透鏡的立體圖。 [0015] 圖2係圖1的倒置圖。 [0016] 圖3係本發明發光組件的剖面圖。 【主要元件符號說明】 [0017] 發光二極體模組：10 [0018] 電路板：12 [0019] 發光二極體：20 098144085 表單編號Α0101 第8頁/共14頁 0982075431-0 201122322 [0020]基座：22 [0021] 晶片：24 [0022] 封罩：26 [0023] 入光面：300 [0024] 頂面：3 01 [0025] 内侧壁面：302 [0026] 外側壁面：303 [0027] 第一圓錐面：304 [0028] 圓柱面：3 0 5 [0029] 出 面· 306 [0030] 圓臺面：307 [0031] 第二圓錐面·· 308 [0032] 〇 定位部：3 2 [0033] 容置槽：320 [0034] 調光部：34 [0035] 内腔：β40 [0036] 凸環：36 098144085 表單編號Α0101 第9頁/共14頁 0982075431-0201122322 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a light-emitting component, and more particularly to a light-emitting diode element. [Prior Art] [0002] As an emerging light source, the light-emitting diode has been widely used in various fields in the field of high luminous efficiency, small size, light weight, environmental protection, etc. the trend of. [0003] The light emitted directly from the light-emitting diode often does not meet the illumination requirements well. At present, the output light pattern is generally adjusted by adding a lens to the light-emitting diode. According to the difference in the effect of the first line adjustment, the lens can be divided into two types: concentrating type and astigmatism type. Since the field of illumination usually requires a relatively high light intensity, the concentrating lens is more widely used in this field. However, 'the current commonly used (four) light-type Qianxian beam angle control ability is insufficient, resulting in some of the light exiting at a large angle, resulting in yellowing or brightening of the edge of the output light type, not for industrial application. [Invention] [0005] 0005144085 The present invention is directed to providing a greening member capable of controlling a beam opening angle to a small range. A lighting assembly comprising a lens and a light emitting diode. The polar body has an optical axis, and the lens includes a 先, an eight apex, a light exiting surface, and an outer inverted surface between the surface and the light incident surface, and the light of the self-luminous diode == passes through the light incident surface of the lens and The light-emitting surface is refracted out of the lens, and the light emitted from the light-emitting diode at a large angle passes through the entrance surface of the lens. No. 4 (4) 14 pages 0892 (201122322 [0006] The surface is refracted and then reflected by the outer wall surface, and finally the light from the lens The surface is refracted outside the lens, and the angle between the light reflected by the outer wall surface and the optical axis is smaller than the angle between the light and the optical axis before being reflected by the outer wall surface. Compared with the prior art, the light-emitting component of the present invention adopts the outer wall surface of the lens. Reflecting the light emitted from the large-angle light-emitting diode and further adjusting the light-emitting surface and the light-incident surface of the lens, so that the angle of light outside the final output lens is limited to a small range, thereby preventing the output light-type edge from being emitted. Yellow or shiny occurs. [0007] 〇 098144085 [Embodiment] Referring to Figures 1 and 3, the light-emitting assembly of the present invention includes a light-emitting diode module 10 and a lens 30. The light-emitting diode mold The group ii0 includes a circuit board 12 and a light emitting diode side 20 mounted on the circuit board 12. The circuit board 12 is used to support the light emitting diode 20 and simultaneously supply energy to the light emitting diode 2 . The pole body 20 includes a base 22, a wafer 24 fixed to the base 22, and a cover 26 covering the wafer 24. The base 22 is rectangular and can be made of a heat insulating material such as plastic or a heat conductive material (such as The wafer 24 is bonded to the top surface of the susceptor 22 by a thermally conductive material (not shown). The enclosure 26 is fixed to the top surface of the susceptor 22 to insulate the wafer 24 from the outside world to prevent it from being exposed to the external environment. Effect. The enclosure 26 is dome shaped. The light emitted by the wafer 24 is initially adjusted. The light-emitting diode 2 has an optical axis I, and the emitted light is rotationally symmetrically distributed in a spatial angle of 12 degrees with respect to the optical axis. The lens 3 is made of a transparent material such as p (^pMMA or the like, which is rotationally symmetric about the optical axis I. The lens 3 includes a positioning portion 32 and a dimming portion 34 connected to the positioning portion 32. The positioning portion 32 is Disc shape, its 5th page / total page form number Α0Ι0Ι 0982075431-0 [0008] 201122322 The bottom surface has a square receiving groove 320 (Fig. 2). The caliber and depth of the accommodating groove 32〇 and the light emitting diode The straight 彳t and the height of the body 2Q pedestal 22 are substantially equal to accommodate the illuminating diode 2 pedestal 22 therein. The bottom surface of the positioning portion 32 can be joined to the circuit board by a bonding material. Above, the lens 30 is fixed to the circuit board 12. The lens 30 has an inner cavity 340' communicating with the accommodating groove 320 to receive the light-emitting diode 2 and enclose the cover 26. The inner side wall surface 302 of the inner cavity 340 is a slightly inwardly convex curved surface which defines that the inner diameter of the inner cavity 340 gradually decreases from bottom to top. The curvature of the inner wall surface 3〇2 is small and close to a constant bran. Preferably, the constant can be between 0·04~〇. ΟδπΗίΓ1, the actual green application is 〇. 〇6龙-i . The top surface 3〇1 of the inner cavity 340 is a flat surface which is adjacent to the light-emitting diode 2〇. The inner side wall surface 3〇2 and the top surface 3〇1 of the inner cavity 340 together form the light incident surface 300 of the lens 3〇, and the light emitted from the light emitting diode 2 is sealed by a large angle group (greater than 4 degrees). The light 8 in Fig. 3 is refracted into the peripheral region of the dimming portion 34 of the lens 30 via the inner wall surface 3 〇 2 of the inner cavity 3....40. The self-illuminating diode enclosure 26 is at a small angle (less than The light that is emitted at or equal to 4{) degrees (such as light b in FIG. 3) is refracted into the central portion of the dimming portion 34 of the lens 30 via the inner cavity surface 3〇1. The outer wall surface 303 of the lens 3 〇 dimming portion 34 is composed of a first conical surface 304 and an old surface 3〇5 which are gradually enlarged, and have different curvatures. The first conical surface 304 is a slightly outward (four) wire having a small change in curvature and a value close to a constant 'the constant is preferably in the range of 0.02 to 0.06 ca". 'Specially' is G. Q4®®·1. The cylindrical surface 3G5 is located above the first conical surface 3G4 and is connected to the thin illuminating surface _, the radius of which is slightly larger than the radius of the top of the first conical surface 304 (ie, the maximum 098144085 of the first conical surface 3Q4) Form No. A0101 Page 6 / Total 14 pages 201122322 Ο 半径 Radius). The first conical surface 3〇4 has a stronger adjustment ability for the light incident on the peripheral portion of the dimming portion 34 than the cylindrical surface 3〇5, that is, the angle between the light totally reflected by the first conical surface 304 and the optical axis I is smaller than The angle between the light totally reflected by the cylindrical surface 3〇5 and the optical axis I. A convex ring 36 is horizontally formed on the outer wall surface 303 of the lens 3 〇 dimming portion 34. It is located between the first conical surface 304 and the circular branch surface 305 and connects them. The collar 36 is used to press a platen (not shown) to be fixed to the circuit board 12 to further secure the lens 30. The top surface of the dimming portion 34 is formed by a second conical surface 308 and a circular mesa 307. The second conical surface 3〇8 has a concave shape, and the opening thereof gradually decreases from top to bottom. The variation of the second year of the second circular surface I3 is larger, and the maximum value is close to 0. lmnT1, the minimum value is close to 〇, and the mean value is 〇 mm 1. The circular mesa 307 is opposite to the first diode 20, and the central portion thereof is a circular plane (not labeled). The peripheral region around the central region is an annular convex arc surface (not shown). The height of 7 is smaller than the height of the second conical surface 308, and the area of the circular plane is smaller than the area of the crest surface 301 of the inner cavity 34. The second conical surface 308 and the circular mesa 3〇7 together form a light-emitting surface 306 of the lens 30, wherein the circular mesa 307 is mainly used to adjust the light refracted by the plane (the top surface 301) of the light-incident surface 300, and second The conical surface 308 is mainly used to adjust the light reflected by the outer side wall surface 3〇3 of the lens 3. [0010] The light emitted from the lens 30 can be adjusted to a small angle range (less than 60 degrees) via the interaction of the light incident surface 300, the light exit surface 3〇6, and the outer wall surface 3〇3. In particular, since the angle between the light reflected by the outer side wall surface 3〇3 of the lens 3 and the optical axis I is significantly smaller than the angle between the rice line before the reflection from the outer side wall surface 3〇3 and the optical axis I, the outer side wall surface of the lens 3〇 is 3〇 3For the hair 098144085 Form number Α0101 Page 7 / Total 14 page 0982075431-0 201122322 The adjustment effect of the light dipole 20 large-angle outgoing light is very significant, so that the opening angle of the output light is controlled within a small range, thus effectively avoiding the output. The yellowing or brightening of the light pattern occurs. _] The large angle and small angle of the above-mentioned implementation of the present invention are divided by 4 (degrees) as a limit. It should be noted that the 40 degree should not be construed as a limitation on the range of large angles and small angles, A specific implementation. In fact, any angle in the range of 20 to 45 degrees can be used as a boundary for dividing a large angle and a small angle as long as it does not deviate from the subject matter of the present invention. [0012] In addition, the term "curvature" as used herein refers to the measurement based on the section of Fig. 3, in other words, the above curvatures are all the curvatures in the section of Fig. 3. [0013] In summary, the present invention complies with the requirements of the invention patent, and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art of the present invention should be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0014] FIG. 1 is a perspective view of a lens in a light-emitting assembly of the present invention. 2 is an inverted view of FIG. 1. 3 is a cross-sectional view of a light emitting assembly of the present invention. [Main component symbol description] [0017] LED module: 10 [0018] Circuit board: 12 [0019] Light-emitting diode: 20 098144085 Form number Α 0101 Page 8 / Total 14 pages 0982075431-0 201122322 [0020 Pedestal: 22 [0021] Wafer: 24 [0022] Enclosure: 26 [0023] Into the light side: 300 [0024] Top surface: 3 01 [0025] Inner side wall surface: 302 [0026] Outer side wall surface: 303 [0027 First conical surface: 304 [0028] Cylindrical surface: 3 0 5 [0029] Outlet · 306 [0030] Round table: 307 [0031] Second conical surface · 308 [0032] 〇 Positioning: 3 2 [0033容 槽:320 [0034] Dimming section: 34 [0035] Inner cavity: β40 [0036] Coronal ring: 36 098144085 Form number Α 0101 Page 9 / Total 14 pages 0992075431-0