201122363 六、發明說明： ：!i 1- , 1' 1 【發明婿屬之技術領域ι ' [0001] 本發明涉及一種照明裝置，特別係指一種發光二極體照 明裝置。 [先前技術3 [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，已被廣泛地應用到路燈 照明當中，大有取代傳統光源的趨勢。 [0003] 〇 為滿足道路照明需求，路燈需要録射出沿道路方向延伸 的光型。通常而言，遠種光型最好能接近橢圓或者長方 形，以儘量切合道路的形狀然.雨，由....於發光二極體直 接產生的光型往往呈圓形’报難滿:足道路照明的需求。 因此，業界採用了各種不同的方法來對發光二極體的光 型進行調整，其中最為常見的一種方法係將發光二極體 ❹ 設置於燈殼内的不同平面上’並使各個不同平面的發光 二極體以一定的角度傾斜’由收，發光二極體發出的光 線可被投射在較寬的範圍内’复而在道路上產生長形的 光型。然而’由於需為發光二極體提供不同高度的傾角 ’該種燈具的燈殼體積及重量往往較大，並且製造成本 也較高。業界另一種通用的方法就係在發光二極體上加 裝配光透鏡。該種方法雖然可以很好地解決燈殼體積及 重量過大的問題，然而其本身卻也存在一些缺陷，比如 會吸收發光二極體的光線而造成光損，導致輸出光強不 足《並且，透鏡的模具開發成本較高，亦不利於節約成 本。 0982073810-0 098143020 表單编號A0101 第3頁/共23頁 201122363201122363 VI. Description of the invention: :!i 1- , 1' 1 [Technical Field of Invention] [0001] The present invention relates to a lighting device, and more particularly to a lighting diode lighting device. [Prior Art 3 [0002] As an emerging light source, the light-emitting diode has been widely used in street lighting because of its high luminous efficiency, small size, light weight, environmental protection, etc., and has a tendency to replace the traditional light source. . [0003] 路 In order to meet the needs of road lighting, street lamps need to record light patterns that extend along the road. Generally speaking, the far-type light type is preferably close to an ellipse or a rectangle to try to fit the shape of the road. Rain, by the light-emitting diode directly produces a light pattern that is often rounded. The demand for foot road lighting. Therefore, the industry has adopted various methods to adjust the light pattern of the light-emitting diodes. The most common method is to place the light-emitting diodes on different planes in the lamp housing and make the different planes The light-emitting diode is tilted at a certain angle 'from the light, the light emitted by the light-emitting diode can be projected over a wide range' to create an elongated light pattern on the road. However, due to the need to provide different height tilt angles for the light-emitting diodes, the lamp housings of such lamps tend to be bulky and heavy, and the manufacturing cost is also high. Another common method in the industry is to attach an optical lens to the LED. Although this method can well solve the problem of excessive volume and weight of the lamp housing, there are some defects in itself, such as absorbing the light of the light-emitting diode and causing light loss, resulting in insufficient output light intensity. The high cost of mold development is also not conducive to cost savings. 0982073810-0 098143020 Form No. A0101 Page 3 of 23 201122363
Jf 明内容】 .，i!ij|i!fj!,·：, 期：98车[〇〇〇4Γ本發明旨在提獨评韁哪.識幡道夢照明需求的照明裝瀘， 其製造成本較為低廉且光損較小。 [0005] —種照明裝置，包括一光源，其還包括一部份環繞光源 的反射罩，該反射罩包括一對第二反射壁及一對將該二 反射壁連接至一起的第一反射壁，該二第二反射壁之間 至少有一敞口，該二第二反射壁及二第一反射壁之間至 少有一對相對傾斜設置，以將光源發出的光線穿過敞口 朝向相反的兩側反射。 [0006] 與習知技術相比，本够明通過反射罩將光源的光線朝向 相反的兩側射出，使輸出光型具有較寬的覆蓋範圍，符 合道路照明的需求。相比於配光透鏡，反射罩的製造成 本較低，且對於光線的吸收率較低，所造成的光損較小 ，更適於產業利用。 【實施方式】 [0007] 請參閱圖卜3，示出了本發明第-實蹲例的照明裝置。該 照明裝置包括一反射罩1 〇及收容於該反射罩1 〇内的一第 一發光二極體60及一第二發光二極體70。該反射罩10包 括一底座20及一垂直形成於該底座20上的側壁30。該側 壁30大致呈“Μ”形，其由二對稱的一第一反射部40及一 第二反射部50組成。該第一反射部40包括長度依次遞增 的第三反射壁42、第二反射壁44及第一反射壁46。第三 反射壁42及第一反射壁46分別自第二反射壁44相對兩側 反向傾斜延伸’第三反射壁42與第一反射壁46末端之間 形成〆敞口 400。第三反射壁42與第二反射壁44連接，二 098143020 表單編號Α0101 第4頁/共23頁 0982073810-0 者間/形成一 11 5度的夾角。第三反射壁42的寬度自第二反 射璧44向前遂^減小’由;她彳，:第三反射壁42整體上大致 呈現出一三角的形狀。第二反射壁44的寬度略小於第一 反射壁46的寬度。第一反射壁46—端與第二反射壁44連 接，另一端與第二反射部5〇的第一反射壁56的末端連接 。第一反射壁46與第二反射壁44亦形成115度的夾角，與 相鄰的第一反射壁56形成31〇度的夾角。底座20在對應每 一反射部40、50的位置處開設一開孔22、24，以供相應 的發光二極體60、70穿彀。開孔22靠近第二反射壁44、 54且整體上大致呈方形。第一發光二極體60收容於左侧 的開孔22内，弟二發光二極體7〇收容於右側的開孔24内 。該反射罩10被以平行道略路面的方式設置於路燈（圖未 示）内，其中反射罩10的底座2〇平行路面，側壁30與路面 垂直，且敞口 400、500朝向道路内侧。由於反射罩10左 右兩端為開放的敞口 400、5〇〇，當第一發光二極體6〇被 點亮時，其朝向左側發出的部分光線3將自反射罩丨〇左侧 敞口 400直接射出反射罩i〇外（發先二極體發出的光線一 般呈立體錐形分佈’因此實際丄光線在沿侧壁3〇的高度 方向也有一個分量，但該分量對本實施例中光線反射的 影響不大，因此未在圖中表示，下同），另外部分光線d 將被反射罩10的第三反射壁42反射為朝向右侧出射反射 罩10外。由於第三反射壁42的長度較小，因此光線a與光 線d的總量相差不大。第一發光二極體60朝向右側發出的 部分光線b被第一反射壁46所阻擋而向左反射，並從敞口 400出射反射罩1〇外，另外部分光線e直接從右側出射反 射罩10外。由於第一反射壁46的長度較大，被第一反射 表單編號A0101 第5頁/共23 I 095 201122363 壁4 6所反射的、光線b的量遠多於直接出射的光線e的量。 ； 因此，整體上看，最終#向£摘Γ出射妁光線a與b的總量 要大於朝向右侧出射的光線d與e的總量，換言之，第一 發光二極體60的光線被第一反射部40朝向左側調整。此 外，第一發光二極體60還有部分光線c會被第二反射壁44 所反射，由於入射角及反射角均較小，因此這部分光線c 基本上都會朝道路内側出射，從而提升在道路内側的照 度。同理，第二發光二極體70的光線（圖中僅示出了兩類 光線a及b)經過第二反射部50的調整之後將整體上朝向右 側出射。經過反射罩10調整之後，第一發光二極體60及 〇 第二發光二極體70的光線可被分別朝向左右兩側出射， 從而使出射光呈現出長形的分佈，滿足道路照明的需求 。此外，由於二敞口 400、500被隔設於反射罩10相反的 兩側，經左側敞口 400出射的光線a及b與經右側敞口 500 出射的光線a及b之間基本上不會發生干涉。 [0008] 可以理解地，上述第二反射壁44、54還可如圖4中所示的 朝向敞口 400、500方向傾斜一角度，以使光線c更進一步 地朝向道路内側傾斜出射，使道路内侧的照度進一步得 到提升。另外，上述各反射壁42、44、46、52、54、56 的反射面可均為平面。 [0009] 圖5-6示出了本發明第二實施例的照明裝置，其反射罩 10a亦係由二對稱的第一反射部40a及第二反射部50a形 成的半包圍結構，與第一實施例所不同的係第二實施例 中的反射罩l〇a僅有一敞口 400a。第一反射部40a亦由一 第三反射壁42a、一第二反射壁44a及一第一反射壁46a 098143020 表單編號A0101 第6頁/共23頁 0982073810-0 201122363 屮一連接而成，其-中第三反射壁42a及第一反射壁46a分別自 壤壇為第二反射壁料a相對兩向傾斜鄉伸。第三反射壁42a 與第一反射壁46a的長度及寬度相當，且大於第二反射壁 44a的長度及寬度。第三反射壁42a與第二反射壁44a形 成115度的夾角，第二反射壁44a亦與第一反射壁46a形 成115度的夹角，第一反射壁46a與第二反射部5〇a的第 一反射壁56a形成170度的夾角。反射罩10a的底座2〇a在 靠近二第二反射壁44a的位置處開設有二開孔22a、24a ，以供相應的發光二極體60、7〇穿入。該反射罩i〇a在路 0 燈中的安裝方式與第一實施例的相同，均係以底座20a平 行路面，側壁30a垂直路面以及敞口 400a朝向道路内侧。 第一發光二極體60安裝於左侧的第一反射部40a内，其朝 右發出的部分光線a直接經敞口 400a出射尽射罩l〇a外， 部分光線b經第三反射壁42a反射後也經過敞口 400a出射 ... ... 反射罩10a外，還有部分光線c經過第三反射壁42a的反射 後仍然朝向右出射反射覃l〇a外（由於光線c在行進過程中 還在側壁30a的高度方内有一分量；因此其在行進過程中 Q 將逐漸升高，有s定幾率直接從第二反射部50a的第三反 射壁52a的頂部上方穿過，而不會再被第三反射壁52a所 反射，故只要將側壁30a的高度控制在合理的範圍内，就 可在較大程度上避免光線c在反射罩l〇a内來回反射的情 況，其他光線亦係如此）。第一發光二極體60朝向左侧發 出的部分光線d亦被第三反射壁42a所反射而朝向右侧出 射反射罩l〇a外，還有部分光線e經過第二反射壁44a的反 射後也朝右出射反射罩l〇a外。由此’第一發光二極體60 的大部分光線都可別第一反射部4〇a調整為向右出射。同 098143020 表單編號A0101 第7頁/共23頁 0982073810-0 201122363 理，第/二發光二極體70-的大部分光線亦都被第二反射部 整為向左出射=f: :¾於需經遯哪二敞〇㈣，，嫁反# 罩10a反射後的第一發光二極體60發出的光線b以及由第 一發光二極體60直接出射的光線a將會與經反射罩 射後的第二發光二極體70發出的光線b以及由第二發光〆 極體70直接出射的光線a交叉干涉之後再分別繼續向 向左行進，從而在道路上投射出長形的光型。 [0010] 可以理解地，本實施例中的第二反射壁44a、54a及第〆 反射壁46a、56a亦可如第一實施例中的第二反射璧44、 54—般朝向敞口40|)a傾斜一角度，ά增太投射在道絡内 側的照度。 [0011] 此外，第一實施例中的反射罩10與第二實施例中的反射 罩10a還可組成如圖7中所示的反光架，其輸出光型的配 光曲線如圖8所示。從圖8中的90度的配光曲線80(圖中的 實線）可看出’在沿道路方向’光線被分佈在〇〜80度的範 圍内，其中在0~50度範圍内的強度變化較為均勻（應當指 出，上述二實施例中的發光二極體60、70的光線反射都 係以出射角相對較大的光線來舉例的，實際上還應當有 相當一部分出射角較小的光線不會經過反射罩1〇、1〇a的 反射而直接從反射罩10、10a的頂部出射，而這部分出射 角小的光線恰恰係發光二極體60、70發出的所有光線中 光強最大的一部分，因此配光曲線越接近〇度，光強越大 )’其變化程度遠小於在50~80度範圍内的強度變化，因 此，輸出光型整體上呈現出長形分佈，可基本滿足道路 照明的需求。並且，從0度配光曲線8 2 (圖中的虛線）上可 098143020 表單編號A0101 第8頁/共23頁 0982073810-0 201122363 [0012] Ο [0013] [0014]〇 [0015] 看出，在垂直於道路方向上，光強整體偏袭道路内侧傾 斜’從而可有效提升,道路办侧的照度，為在道路内侧上 行駛的車輛提供充分的照明。 另外’本發明的照明裝置還可為各個反射罩1〇 ' l〇a配備 一散射透鏡90，該等散射透鏡90可以公知的方法，如各 自分離地固定在相應的反射罩10、l〇a上方，或者如圖9 般通過燈罩92集成為一體而整體架設於反射罩1〇、i〇a上 。通過設置散射透鏡90，輸出光的配光曲線可被調整為 更符合道路照明的需求。如圖10所示，路燈在沿道路方 向上的光強（參見圖中以實線樣示的90度配光曲線84)分 佈更加均勻，在垂直於道路方向上的光強（圖中中以虛線 標示的0度配光曲線86)則更向内'Μ傾斜。 與習知技術相比，本發明的反光罩10 '10a不僅製造成本 低，適於大批量生產，且光損較小，有利於提升輸出光 強。 ，—：：丨 综上所述，本發明符合發明專利要件，爰依法提出專利 申請。惟，以上所^逮者僅為本'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】 圖1係本發明第一實施例的照明裝置中的反射罩的立體圖 〇 圖2係第一實施例的照明裝置的反射罩及二發光二極體組 裝後的俯視圖。 098143020 表單編號A0101 第9頁/共23頁 0982073810-0 [0016] 201122363 [0017] 圖3係圖2的截面®。 证伸 ’ ’ ί,„；ι. -V 4V ^ [0018] 圖4與圖3類似，但反射罩的第一二反射壁被傾斜一角度。 [0019] 圖5係本發明第二實施例的照明裝置中的反射罩的立體圖 [0020] 圖6係第二實施例的照明裝置的反射罩及二發光二極體組 裝後的俯視圖。 [0021] 圖7示出了第一實施例的照明裝置中的反射罩與第二實施 例中的照明裝置中的反射罩的組合成的反光架。 [0022] 圖8為圖7中的反光架的配光曲線圖。 [0023] 圖9為在圖7的反光架的基礎上加裝了一燈罩。 [0024] 圖10為圖9的反光架及燈罩的配光曲線圖。 【主要元件符號說明】 [0025] 反射罩：10 、10a [0026] 底座 :20、 20a [0027] 開孔 ：22 ' 22a、 24、24a [0028] 側壁 :30、 30a [0029] 第一 反射部 :40、 40a [0030] 敞口 ：400 、400a .、500 [0031] 第三 反射壁 :42、 42a ' 52、 • 52a [0032] 第二 反射壁 :44、 44a ' 54 ’ • 54a [0033] 第一 反射壁 ：46 ' 46a ' 5 6 ' • 56a 098143020 表單編號 A0101 第 10 頁/共 23 頁 0982073810-0 201122363 . ^各 ’ [0035] [0036] [0037] [0038] [0039] Ο 第二反射部：50、50a m l 第一#光二極體：60 第二發光二極體：70 配光曲線：80、82、84、86 散射透鏡：90 燈罩：92 j丄 升道路内傲 ο 098143020 表單編號A0101 第11頁/共23頁 0982073810-0Jf Ming content] .,i!ij|i!fj!,·:, period: 98 car [〇〇〇4Γ The invention aims to provide a unique evaluation of the lighting decoration of the lighting requirements of the road, its manufacture The cost is relatively low and the light loss is small. [0005] A lighting device includes a light source, further comprising a reflector partially surrounding the light source, the reflector comprising a pair of second reflective walls and a pair of first reflective walls connecting the two reflective walls together At least one opening is formed between the two second reflective walls, and at least one pair of oppositely disposed between the two second reflective walls and the two first reflective walls are disposed to pass the light from the light source through the opening toward the opposite sides. reflection. Compared with the prior art, it is obvious that the light of the light source is emitted toward the opposite sides through the reflector, so that the output light pattern has a wide coverage and meets the requirements of road lighting. Compared with the light distribution lens, the reflector has a low manufacturing cost and a low light absorption rate, and the light loss is small, which is more suitable for industrial use. [Embodiment] [0007] Referring to Figure 3, there is shown a lighting device of a first embodiment of the present invention. The illuminating device includes a reflector 1 and a first LED 206 and a second LED 70 received in the reflector 1 . The reflector 10 includes a base 20 and a side wall 30 formed perpendicularly to the base 20. The side wall 30 has a substantially "Μ" shape and is composed of a second symmetrical first reflecting portion 40 and a second reflecting portion 50. The first reflecting portion 40 includes a third reflecting wall 42, a second reflecting wall 44, and a first reflecting wall 46 whose length increases in order. The third reflective wall 42 and the first reflective wall 46 respectively extend obliquely obliquely from opposite sides of the second reflective wall 44. A third opening 42 is formed between the third reflective wall 42 and the end of the first reflective wall 46. The third reflective wall 42 is connected to the second reflective wall 44. Two 098143020 Form No. Α0101 Page 4 / Total 23 Page 0982073810-0 Between / Form an angle of 11 5 degrees. The width of the third reflecting wall 42 is reduced from the second reflecting cymbal 44 by the second reflecting wall 42; she 彳: the third reflecting wall 42 generally assumes a triangular shape as a whole. The width of the second reflective wall 44 is slightly smaller than the width of the first reflective wall 46. The first reflective wall 46-end is connected to the second reflective wall 44, and the other end is connected to the end of the first reflective wall 56 of the second reflective portion 5'''''''' The first reflective wall 46 and the second reflective wall 44 also form an angle of 115 degrees, forming an angle of 31 degrees with the adjacent first reflective wall 56. The base 20 defines an opening 22, 24 at a position corresponding to each of the reflecting portions 40, 50 for the corresponding light emitting diodes 60, 70 to pass through. The opening 22 is adjacent to the second reflective walls 44, 54 and is generally generally square. The first light-emitting diode 60 is housed in the opening 22 on the left side, and the second light-emitting diode 7 is housed in the opening 24 on the right side. The reflector 10 is disposed in a street lamp (not shown) in a parallel manner, wherein the base 2 of the reflector 10 is parallel to the road surface, the side wall 30 is perpendicular to the road surface, and the openings 400, 500 are oriented toward the inside of the road. Since the left and right ends of the reflector 10 are open openings 400 and 5, when the first LED 6 is illuminated, part of the light 3 emitted toward the left side will be open from the left side of the reflector. 400 directly out of the reflector i (the light emitted by the first diode is generally a three-dimensional cone distribution 'so the actual light rays also have a component in the height direction along the side wall 3 ,, but this component reflects the light in this embodiment The effect of this is not large, so it is not shown in the figure, the same below), and another part of the light d will be reflected by the third reflective wall 42 of the reflector 10 to exit the reflector 10 toward the right side. Since the length of the third reflecting wall 42 is small, the total amount of the light a and the light d is not much different. A portion of the light ray b emitted from the first light-emitting diode 60 toward the right side is blocked by the first reflective wall 46 and is reflected to the left, and exits the reflective cover 1 from the open port 400, and another portion of the light ray e directly exits the reflective cover 10 from the right side. outer. Due to the large length of the first reflective wall 46, the amount of light b reflected by the first reflecting form number A0101 page 5/23 I 095 201122363 wall 46 is much larger than the amount of light e directly emitted. Therefore, on the whole, the total amount of light rays a and b is higher than the total amount of light d and e emitted toward the right side, in other words, the light of the first light-emitting diode 60 is A reflection portion 40 is adjusted toward the left side. In addition, a portion of the light ray c is also reflected by the second reflective wall 44. Since the incident angle and the reflection angle are both small, the portion of the light c is substantially emitted toward the inner side of the road, thereby being lifted. Illumination on the inside of the road. Similarly, the light of the second light-emitting diode 70 (only two types of light rays a and b are shown in the figure) is adjusted toward the right side after being adjusted by the second reflecting portion 50. After being adjusted by the reflector 10, the light of the first light-emitting diode 60 and the second light-emitting diode 70 can be respectively emitted toward the left and right sides, so that the emitted light exhibits an elongated distribution to meet the needs of road lighting. . In addition, since the two openings 400, 500 are spaced apart from opposite sides of the reflector 10, the light rays a and b emitted through the left side opening 400 and the light rays a and b emitted through the right side opening 500 are substantially not Interference has occurred. [0008] It will be understood that the second reflective walls 44, 54 may also be inclined at an angle toward the open sides 400, 500 as shown in FIG. 4 to cause the light c to be further inclined toward the inside of the road to make the road The illumination on the inside is further improved. Further, the reflecting surfaces of the respective reflecting walls 42, 44, 46, 52, 54, and 56 may be flat surfaces. 5 to FIG. 5-6 illustrate a lighting device according to a second embodiment of the present invention, wherein the reflector 10a is also a semi-enclosed structure formed by two symmetric first reflecting portions 40a and second reflecting portions 50a, and first The embodiment of the second embodiment has a reflector 400a having only one opening 400a. The first reflecting portion 40a is also formed by a third reflecting wall 42a, a second reflecting wall 44a and a first reflecting wall 46a 098143020 Form No. A0101 Page 6 / 23 pages 0982073810-0 201122363. The middle third reflecting wall 42a and the first reflecting wall 46a are respectively inclined from the soil to the second reflecting wall a. The third reflecting wall 42a is equivalent to the length and width of the first reflecting wall 46a and larger than the length and width of the second reflecting wall 44a. The third reflective wall 42a forms an angle of 115 degrees with the second reflective wall 44a, and the second reflective wall 44a also forms an angle of 115 degrees with the first reflective wall 46a, and the first reflective wall 46a and the second reflective portion 5a The first reflective wall 56a forms an angle of 170 degrees. The base 2a of the reflector 10a is provided with two openings 22a, 24a adjacent to the second reflecting walls 44a for the corresponding light-emitting diodes 60, 7 to penetrate. The reflector i〇a is mounted in the road lamp in the same manner as in the first embodiment, with the base 20a being parallel to the road surface, the side wall 30a being perpendicular to the road surface, and the opening 400a facing the inside of the road. The first light-emitting diode 60 is mounted in the first reflective portion 40a on the left side, and a portion of the light ray a emitted toward the right is directly emitted through the opening 400a, and a portion of the light ray b passes through the third reflective wall 42a. After the reflection, the light exits through the opening 400a. There is also a component in the height of the side wall 30a; therefore, Q will gradually rise during the traveling, and there is a probability that it passes directly over the top of the third reflecting wall 52a of the second reflecting portion 50a without It is reflected by the third reflective wall 52a. Therefore, as long as the height of the side wall 30a is controlled within a reasonable range, the light c can be prevented from being reflected back and forth in the reflector l〇a to a large extent, and other light is also in this way). A part of the light ray d emitted from the first light-emitting diode 60 toward the left side is also reflected by the third reflective wall 42a and is emitted toward the right side outside the reflection cover 10a, and a part of the light ray e is reflected by the second reflection wall 44a. It also exits the reflector l〇a to the right. Thereby, most of the light of the first light-emitting diode 60 can be adjusted to be emitted to the right by the first reflecting portion 4A. Same as 098143020 Form No. A0101 Page 7 of 23 0982073810-0 201122363, most of the light of the second / second LED 70- is also turned out by the second reflection part to the left = f: :3⁄4 The light b emitted by the first light-emitting diode 60 reflected by the cover 10a and the light a directly emitted by the first light-emitting diode 60 will be emitted after the reflector is reflected by the reflective cover (4). The light b emitted by the second light-emitting diode 70 and the light a directly emitted by the second light-emitting diode 70 cross-interferely and then continue to travel to the left, respectively, thereby projecting an elongated light pattern on the road. [0010] It can be understood that the second reflective walls 44a, 54a and the second reflective walls 46a, 56a in this embodiment can also be oriented toward the open port 40 as the second reflective ridges 44, 54 in the first embodiment. )a is tilted at an angle, and the illuminance is projected too much on the inside of the channel. [0011] In addition, the reflector 10 in the first embodiment and the reflector 10a in the second embodiment may also constitute a reflector as shown in FIG. 7, and the light distribution curve of the output light type is as shown in FIG. . From the 90 degree light distribution curve 80 (solid line in the figure) in Fig. 8, it can be seen that 'in the direction along the road' the light is distributed in the range of 〇~80 degrees, wherein the intensity is in the range of 0 to 50 degrees. The change is relatively uniform (it should be noted that the light reflections of the light-emitting diodes 60, 70 in the above two embodiments are exemplified by light having a relatively large exit angle, and actually a relatively small portion of the light having a small exit angle should be present. It will not directly exit from the top of the reflectors 10, 10a through the reflection of the reflectors 1〇, 1〇a, and this part of the light with a small exit angle is the highest among all the light emitted by the LEDs 60, 70. Part of it, so the closer the light distribution curve is to the twist, the greater the light intensity. 'The degree of change is much smaller than the intensity change in the range of 50 to 80 degrees. Therefore, the output light pattern exhibits an elongated distribution as a whole, which can be basically satisfied. The need for road lighting. And, from the 0 degree light distribution curve 8 2 (dashed line in the figure), 098143020, form number A0101, page 8 / total 23 page 0992073810-0 201122363 [0012] Ο [0013] [0014] 〇 [0015] In the direction perpendicular to the road, the light intensity is totally inclined to the inside of the road, so that it can be effectively raised, and the illumination on the side of the road provides sufficient illumination for the vehicle traveling on the inside of the road. In addition, the illuminating device of the present invention can also be provided with a diffusing lens 90 for each of the reflecting covers 1a, which can be fixedly fixed to the corresponding reflecting cover 10, l〇a, respectively, by a known method. The upper part or the light cover 92 is integrally integrated as shown in FIG. 9 and is integrally mounted on the reflection cover 1〇, i〇a. By providing the diffusing lens 90, the light distribution curve of the output light can be adjusted to more closely meet the needs of road lighting. As shown in Fig. 10, the light intensity of the street lamp in the direction along the road (see the 90 degree light distribution curve 84 shown by the solid line in the figure) is more evenly distributed, and the light intensity in the direction perpendicular to the road (in the figure The 0 degree light distribution curve 86) indicated by the dashed line is more inwardly inclined. Compared with the prior art, the reflector 10'10a of the present invention is not only low in manufacturing cost, is suitable for mass production, and has a small light loss, which is advantageous for improving the output light intensity. , —:: 综 In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above-mentioned embodiments are only the preferred embodiments of the present invention. Any 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 Fig. 1 is a perspective view of a reflector in a lighting device according to a first embodiment of the present invention. Fig. 2 is a plan view showing a reflector and a two-light-emitting diode assembly of the lighting device of the first embodiment. 098143020 Form No. A0101 Page 9 of 23 0982073810-0 [0016] 201122363 [0017] FIG. 3 is a section of FIG. [0018] Figure 4 is similar to Figure 3, but the first two reflective walls of the reflector are tilted by an angle. [0019] Figure 5 is a second embodiment of the present invention [0020] FIG. 6 is a plan view of the reflector of the illumination device of the second embodiment and the two light emitting diodes assembled. [0021] FIG. 7 shows the illumination of the first embodiment. A reflector formed by a combination of a reflector in the apparatus and a reflector in the illumination apparatus in the second embodiment. [0022] FIG. 8 is a light distribution diagram of the reflector of FIG. 7. [0023] FIG. Fig. 10 is a light distribution diagram of the reflector frame and the lampshade of Fig. 9. [Main component symbol description] [0025] Reflector: 10, 10a [0026 Base: 20, 20a [0027] Opening: 22' 22a, 24, 24a [0028] Side wall: 30, 30a [0029] First reflecting part: 40, 40a [0030] Open: 400, 400a., 500 [0031] Third reflective wall: 42, 42a '52, • 52a [0032] Second reflective wall: 44, 44a '54' • 54a [0033] First reflective wall :46 ' 46a ' 5 6 ' • 56a 098143020 Form No. A0101 Page 10 of 23 0982073810-0 201122363 . ^ Each '[0035] [0037] [0039] [0039] Ο Second reflection: 50, 50a ml First #光二极管: 60 Second LED: 70 Light distribution curve: 80, 82, 84, 86 Scattering lens: 90 Shade: 92 j 丄 道路 内 098 098143020 Form No. A0101 11 pages/total 23 pages 0982073810-0