201128114 六、發明說明： 【發明所屬之技術領域】 本發明係有關於一種led照明裝置，尤指一種具有特殊 透鏡之LED照明裝置，該透鏡能產生一特定光形以使該LED 照明裝置符合特定之道路照明規範。 【先前技術】 為提供有效的道路照明以保護用路者的安全，各國政府皆 對街燈的照度及其均勻度制定訂有相關照明規範。以北美照明 協會(正S)對街燈之分類標準為例，街燈的光分佈型態可分為 沿路面方向的「垂直光分佈（Verticallightdistributi〇n)」及橫201128114 VI. Description of the Invention: [Technical Field] The present invention relates to a LED lighting device, and more particularly to an LED lighting device having a special lens capable of generating a specific light shape to make the LED lighting device conform to a specific Road lighting specifications. [Prior Art] In order to provide effective road lighting to protect the safety of road users, governments have established relevant lighting specifications for the illumination and uniformity of street lamps. For example, the North American Lighting Association (Positive S) classifies street lights. The light distribution pattern of street lights can be divided into "vertical light distribution" (Vertical Light Distributi〇n) and horizontal direction along the road surface.
跨路面的「橫向光分佈(Lateral light distribution)」。其中，正S 的「垂直光分佈」依燈具最大光度中心點照射至路面之範圍盥 燈具間之水平距離可分成短分佈（Short)、中分佈（Mediuml 及長分佈（Long)三種。根據定義，短分佈（Sh〇rt)是指燈 具最大光度中心點照射至路面之耽圍與燈具間之水平距離，為 燈具設置高度（Mount Height)之1.〇至2.25倍；中分佈 (Medium)是指燈具最大光度中心點照射至路面^範圍盥燈 具間之水平距離，為燈具設置高度之2 25至3乃倍；以及長 分佈（Long)是指燈具最大光度中心點照射至路面之範圍盥燈 具間之水平距離，為燈具設置高度之3 75至6倍。 ^ 另-方面’正s #「橫向光分佈」依燈具1/2最大光度 (Half-maximum candela)形成之轨跡所涵蓋之範圍區分為 Typel、Type Π、Type 瓜、Typeiv 及 TypeViL種主要分佈 型態，如第十-圖所示。其中，Type】分佈是指該軌跡涵蓋之 範圍為道路側（Street side)及房屋側（H嶋side)路寬為燈 具高度之1.0似巧。Type时佈是_執職蓋之範圍 為道路側路寬為燈具南度之1.G至1.75倍者。Type瓜分佈是 201128114 指該轨跡涵蓋之範圍為道_路寬為燈具高度之1/75至275 . 分佈是指該軌跡涵蓋之範圍為道路側路寬為燈 上之寬廣道路，e v分佈是指該軌跡涵蓋 之犯圍對各方向触獲得路寬為燈具高度之1_G倍以内者。 基本上’傳統以鎢絲或氣體放射為光源的街燈大 亡述=標準之要求ϋ由於單顆高功率發光二極體的i 度目則相較於傳統光源仍較弱，因此必須要用多顆陣列的發光 二極體來_足_亮度。故以發光二極體為辆之街燈^ 特別地設相符合—般照明標準之要求，例如朗專利公 =0=9/0225543號或第US2_0225543號所揭露之咖口昭 明裝置。 …、 【發明内容】 種LED照明裝置，其彻—種特殊透鏡以 使其先刀佈付合一般照明標準，特別是符合IES的Type Π、 Type ΠΙ及Type IV的道路側照明規範。 詳而言之，本發明之LED照明裝置包括一電路板 設於該電路板的LED絲，以及概分縣設 魏包括相連的—主鏡體及―“體。^ 主鏡體具有相背對的—人射面及—外凸曲面。該 的方式傾斜。該副鏡體係延伸自該主鏡體的該另 孫二Ϊ—人絲、—反射面及―出絲。該職體的入 ίίΐ,主鏡體的入射面。該反射面係背對該入光面。此 二ίίϊί得該LED光源所發出的光束—部分透過該主鏡 ί 域魅直接㈣斜凸曲面往-目標區 接而另—部份光束係透過該副鏡體的人光面進入該 田』鏡體並直接人射·反射面，麵觀射面崎至該出光 201128114 面，進而由該出光面朝該目標區域偏折出去。如此，每一透鏡 的主鏡體能將-部分的光束投向該目標區域以符合IES的 ^pe Π、Type瓜或TypeIV的分佈型態，而該副鏡體能將另 一光束作充分的利用以增加該目標區域的亮度。 一較佳地’上述主鏡體的入射面及外凸曲面與該副鏡體的入 $、反射面及出光_其卜面係由多個面拼接構成，藉以 使該LED照明裝置能為路面提供均句的亮度。 至於本發明的其它發明内容與更詳細的技術及功能說 明，將揭露於隨後的說明。 【實施方式】 第一〜十圖係顯示本發明之LED照明裝置的一較佳實施 例，其中才曰出s玄LED照明裝置，例如街燈，其包括一燈桿1、 -燈殼2、_ LED模組3及—透鮮4。贿殼2設於該燈桿 1的一端。該透光罩4將該LED模組3罩設於該燈殼2内， 如第二圖所示。 第二及三圖係分別顯示該LED照明裝置的縱向及橫向之 剖面圖。如圖所示’該led模組3包括-電路板5、複數設 於該電路板5底_ LED光源7，以及概分贿設於該些 LED光源7的透鏡6。此外，該LED模組3另包括設於該電 路板5的頂面的一散熱鰭片組8，用以辅助該些led光源7 散熱，以使該LED光源7不致因溫度過高而降低發光效率。 如第二圖所示，該LED模組3的每一透鏡6包括一主鏡 體61、一副鏡體62，以及延伸自該主鏡體61頂緣的定位柱 63。該疋位柱63係插入該電路板5底面預設的定位孔中，以 將該透鏡6定位於該電路板5上。該些透鏡6的主鏡體&及 副鏡體62係非對稱且沿著該燈桿丨的延伸方向一前一後地排 列。反觀第二圖，該些透鏡6在沿著路面的方向上係左右對稱。 201128114 第四至六圖顯示該透鏡6於不同視角下的示意圖。如第四 及五圖所示’該透鏡6的主鏡體61具有相背對的一入射面61〇 及一外凸曲面611。該入射面610係由多個概呈三角形的面 610a-610d拼接構成。如第五及六圖所示，該些面6i〇a_61〇d 分別由該主鏡體61的一侧朝另一侧傾斜。此外，該副鏡體 係延伸自該主鏡體61的該另一側，且包括一入光面62i (第 /、圖）、一反射面622 (第五圖）及一出光面623 (第四圖）。 s玄入光面621係面對該主鏡體61的入射面610，如第六圖所 示。該反射面622係背對該入光面621，如第七圖所示，且係 由多個面622a-622b拼接構成。 如第七圖所示，該透鏡6使得該LED光源7所發出的光 束一部分透過該主鏡體61的入射面610進入該主鏡體61並直 接經由該外凸曲面611往一目標區域（未顯示）發散出去。例 如，該目標區域可以是路面上依正s規定的一待照明區域。再 者，该LED照明裝置可藉由改變該些透鏡的主鏡體的入射 面610的傾斜程度來調整其橫向光分佈，以符合特定之 It、Type Μ或Type IV分佈。此外，另一部份的光束會透過 該副鏡體62的入光面621進入該副鏡體62並直接入射至該反 射面622，並被該反射面622全反射至該出光面623，進而由 該出光面623朝該目標區域偏折出去。換言之，該副鏡體62 能將該LED光源7的另一部份光束作充分的利用來增加該主 鏡體61所照射的目標區域的亮度。如此一來，當該LED照明 裝置設立於路邊時，該些透鏡6可轉化該些LED光源7所發 出的光投射至該目標區域，以符合正s規定的Type n、Type ΙΠ或Type IV分佈型態，且相較於傳統利用對稱型透鏡的LED 照明裝置，本發明所照明的目標區域具有較高的亮度。 本實^例中，無論是該主鏡體61的入射面61〇或該副鏡 體62的反射面622 ’均係由多個面622a_622b拼接構成，如此 可降低成像作用發生，有利於提供均勻的照明。事實上，只要 201128114 ^主鏡體61的入射面610及外凸曲面611與該副鏡體62的入 卜反射面622及出光面623的其中一面是由多個面拼 接構成，均有助於增加照明的均勻性。 值仔的疋，如第八圖所示，該透鏡6的主鏡體η的 2凸曲面611係由無數連續的圓弧線構成，該些圓弧線的圓心 均位在同-虛_線B上。這樣的好處是使該透鏡的外凸曲 面611易於加工，例如表面研磨。再者，由於該曲面的特性， ，外凸曲面611能在加工的同時被雕塑為非球面，以提升照明 品質。 如第九圖所示，透過該些面61〇a_61〇d進入該透鏡6的主 鏡體61的光束會對稱地往透鏡6中線a的兩側發散。藉此， 本發明之LED照明裝置可根據補道路㈣求，藉由調整該 些面610a-610d的數量及斜率，達到符合正s之垂直光分佈的 短分佈（Short)、中分佈（Medium)或長分佈（L 明規範。 … ,第十圖係顯示本發明之較佳實施利應用於街燈的光分佈 情形。其中，該LED照明裝置之橫向光分佈在1/2最大光度 (Half-maximum candela)的執跡範圍係落在Τγρε m的區域， 因此符合Type ΠΙ的分佈類型。又，該LED照明裝置之垂直 光分佈在最大光度（Maximum candela)的執跡範圍係落在短 分饰（Short)的區域。 從上述說明中，可以理解到本發明之LHD照明裝置係根 據LED光源的特殊性及道路照明的需要而設計出別具特色的 透鏡，以使該LED照明裝置的照明得以符合相關道路照明規 範，進而維護用路者的安全。 無論如何，任何人都可以從上述例子的說明獲得足夠教 導，並據而了解本發明内容確實不同於先前技術，且具有產業 上之利用性，及足具進步性。是本發明確已符合專利要件，爰 201128114 依法提出申請。 201128114 【圖式簡單說明】 第一圖，縣㈣LED照賴置之—難實_之立體分解 圖。 π 第一圖，係該較佳實施例之縱剖面圖。 第二圖，係該較佳實施例之橫剖面圖。 第四圖’顯示該難實施例之透鏡的—仰視立體圖。 第^圖，顯示該較佳實施例之透鏡的一俯視立體圖。 該較佳實施例之透鏡的另—俯視立體圖。 弟七圖’顯示該較佳實施例之透鏡的縱剖面圖。 第八圖，係用以顯示該較佳實施例之透鏡的一 性。 外凸曲面之特 第九圖’顯示該較佳實施例之透鏡的橫剖面圖。 第十圖，顯示該較佳實施例應用於街燈之光分佈严< 第十一圖’顯示北美照明協會(正s)對街燈之^^。 類標準。 、句光分佈的分 【主要元件符號說明】 1燈桿 2燈殼 3 LED模組 4透光罩 5電路板 6透鏡 61主鏡體 610入射面 611外凸曲面 62副鏡體 621入光面 622反射面 623出光面 63定位柱 7 LED光源 8散熱鰭片組 A中線 B虛擬轴線"Lateral light distribution" across the road. Among them, the "vertical light distribution" of positive S is irradiated to the road surface according to the maximum luminosity center point of the luminaire. The horizontal distance between the lamps can be divided into short distribution (medium) and medium distribution (Mediuml and long distribution (Long). By definition, The short distribution (Sh〇rt) refers to the horizontal distance between the circumference of the luminosity of the luminosity of the luminaire and the luminaire. The height of the luminaire is 1. 〇 to 2.25 times; the medium is the medium. The maximum luminosity center point of the luminaire is irradiated to the road surface. The horizontal distance between the luminaires is 2 25 to 3 times the height of the luminaire. The long distribution (Long) refers to the maximum luminosity center point of the luminaire. The horizontal distance is set to 3 75 to 6 times the height of the fixture. ^ The other aspect is positive s # "lateral light distribution" according to the range covered by the trajectory formed by the 1/2 maximum luminance (Half-maximum candela) It is the main distribution type of Typel, Type Π, Type 瓜, Typeiv and TypeViL, as shown in the tenth-figure. The Type distribution means that the trajectory covers the street side and the house side (H). Side) The width of the road is 1.0 for the height of the luminaire. The type of cloth is _ the cover cover is the road side width is 1.G to 1.75 times the south of the luminaire. The type of melon distribution is 201128114. The range is _ road width is 1/75 to 275 of the height of the luminaire. The distribution means that the trajectory covers the road side road width as the broad road on the lamp, and the ev distribution refers to the trajectory covered by the trajectory. The road width is within 1_G times of the height of the luminaire. Basically, the traditional street lamp with tungsten or gas radiation as the light source is the standard requirement ϋ because the i-degree of a single high-power illuminating diode is compared The traditional light source is still weak, so it is necessary to use a plurality of arrays of light-emitting diodes to _foot_brightness. Therefore, the street light with the light-emitting diodes is specially designed to meet the requirements of general lighting standards, such as Lang Patent No.======================================================================================================== Especially IES-compliant Type Π, Type ΠΙ and Type IV The roadside lighting specification. In detail, the LED lighting device of the present invention comprises a LED wire provided on the circuit board of the circuit board, and the general county includes the main mirror body and the "body body". The body has opposite faces - a human face and a convex curved surface. The manner is inclined. The sub-mirror system extends from the other sun-man's silk, the reflective surface and the "wire" of the main mirror body. The body's entry into the ίίΐ, the entrance surface of the main mirror body. The reflecting surface faces away from the light incident surface. The light beam emitted by the LED light source is partially transmitted through the main mirror, and the direct (four) oblique convex surface is connected to the target region, and the other beam is transmitted through the light surface of the sub-mirror into the field. The mirror body directly directs the reflection surface, and the surface is exposed to the surface of the light 201128114, and the light exit surface is deflected toward the target area. In this way, the main mirror body of each lens can direct the - part of the light beam to the target area to conform to the distribution pattern of IES, Type, or Type IV, and the secondary body can fully utilize the other beam to increase The brightness of the target area. Preferably, the incident surface and the convex curved surface of the main mirror body and the entrance surface, the reflection surface and the light output of the sub-mirror body are formed by splicing a plurality of surfaces, so that the LED lighting device can be a road surface. Provide the brightness of the average sentence. Other inventive aspects and more detailed technical and functional descriptions of the present invention are disclosed in the following description. [Embodiment] The first to tenth drawings show a preferred embodiment of the LED lighting device of the present invention, in which the sinus LED lighting device, such as a street light, includes a light pole 1, a lamp housing 2, LED module 3 and - fresh 4 . The bribe 2 is provided at one end of the pole 1. The translucent cover 4 covers the LED module 3 in the lamp housing 2, as shown in the second figure. The second and third figures respectively show longitudinal and lateral cross-sectional views of the LED lighting device. As shown in the figure, the LED module 3 includes a circuit board 5, a plurality of LED boards 7 disposed at the bottom of the circuit board 5, and a lens 6 that is disposed on the LED light sources 7. In addition, the LED module 3 further includes a heat dissipation fin group 8 disposed on the top surface of the circuit board 5 to assist the heat dissipation of the LED light sources 7 so that the LED light source 7 does not cause lower temperature due to excessive temperature. effectiveness. As shown in the second figure, each lens 6 of the LED module 3 includes a main mirror body 61, a sub-mirror body 62, and a positioning post 63 extending from the top edge of the main mirror body 61. The clamping post 63 is inserted into a predetermined positioning hole in the bottom surface of the circuit board 5 to position the lens 6 on the circuit board 5. The main mirror body & and the sub-mirror body 62 of the lenses 6 are asymmetrical and arranged one after the other along the extending direction of the lamp post 。. In contrast to the second figure, the lenses 6 are bilaterally symmetrical in the direction along the road surface. 201128114 Figures 4 through 6 show schematic views of the lens 6 at different viewing angles. As shown in Figs. 4 and 5, the main mirror body 61 of the lens 6 has an incident surface 61A and a convex curved surface 611 opposite to each other. The entrance surface 610 is formed by splicing a plurality of substantially triangular faces 610a-610d. As shown in the fifth and sixth figures, the faces 6i〇a_61〇d are inclined from one side of the main mirror body 61 toward the other side, respectively. In addition, the sub-mirror system extends from the other side of the main mirror body 61 and includes a light incident surface 62i (FIG. / FIG.), a reflective surface 622 (fifth diagram), and a light exit surface 623 (fourth Figure). The sinusoidal light surface 621 faces the incident surface 610 of the main mirror body 61 as shown in the sixth figure. The reflecting surface 622 is opposite to the light incident surface 621, as shown in the seventh figure, and is formed by splicing a plurality of surfaces 622a-622b. As shown in FIG. 7 , the lens 6 allows a part of the light beam emitted by the LED light source 7 to enter the main mirror body 61 through the incident surface 610 of the main mirror body 61 and directly through the convex curved surface 611 to a target area (not Show) divergence. For example, the target area may be an area to be illuminated defined by the positive s on the road surface. Furthermore, the LED illumination device can adjust its lateral light distribution to conform to a particular It, Type Μ or Type IV distribution by varying the degree of tilt of the incident surface 610 of the main mirror body of the lenses. In addition, another portion of the light beam enters the sub-mirror 62 through the light incident surface 621 of the sub-mirror 62 and directly enters the reflective surface 622, and is totally reflected by the reflective surface 622 to the light-emitting surface 623. The light exiting surface 623 is deflected toward the target area. In other words, the sub-mirror 62 can make sufficient use of the other portion of the LED light source 7 to increase the brightness of the target area illuminated by the main mirror body 61. In this way, when the LED lighting device is set on the roadside, the lenses 6 can convert the light emitted by the LED light sources 7 to the target area to conform to the Type n, Type ΙΠ or Type IV specified by the s. The distribution pattern, and the target area illuminated by the present invention has a higher brightness than the conventional LED illumination device using a symmetrical lens. In this embodiment, whether the incident surface 61 of the main mirror body 61 or the reflecting surface 622' of the sub-mirror 62 is formed by splicing a plurality of surfaces 622a-622b, the imaging effect can be reduced, which is advantageous for providing uniformity. Lighting. In fact, as long as the incident surface 610 and the convex curved surface 611 of the main mirror body 61 and the incident surface 622 and the light exit surface 623 of the sub-mirror 62 are formed by splicing a plurality of faces, it is helpful for Increase the uniformity of lighting. As shown in the eighth figure, the 2 convex curved surface 611 of the main mirror body η of the lens 6 is composed of an infinite number of continuous circular arc lines, and the centers of the circular arc lines are all in the same-virtual_line B. This has the advantage of making the convex curved surface 611 of the lens easy to machine, such as surface grinding. Moreover, due to the characteristics of the curved surface, the convex curved surface 611 can be sculpted into an aspherical surface while being processed to improve the illumination quality. As shown in the ninth figure, the light beams entering the main mirror body 61 of the lens 6 through the faces 61〇a_61〇d converge symmetrically toward both sides of the center line a of the lens 6. Thereby, the LED illumination device of the present invention can obtain a short distribution (medium) and a medium distribution (Medium) according to the vertical light distribution of the positive s by adjusting the number and slope of the surfaces 610a-610d according to the supplementary road (4). Or a long distribution (L specification), the tenth figure shows the preferred embodiment of the present invention applied to the light distribution of a street lamp, wherein the lateral illumination of the LED illumination device is distributed at 1/2 maximum luminosity (Half-maximum) The range of candela) falls within the region of Τγρε m, and therefore conforms to the type of distribution of Type 。. Moreover, the vertical light distribution of the LED illuminator falls within the range of the maximum luminosity (Maximum candela). From the above description, it can be understood that the LHD illumination device of the present invention designs a distinctive lens according to the particularity of the LED light source and the needs of the road illumination, so that the illumination of the LED illumination device can be met. Relevant road lighting specifications, in order to maintain the safety of the road users. Anyway, anyone can get enough guidance from the description of the above examples, and understand that the content of the present invention is indeed different The prior art, and has industrial applicability, and is progressive. It is the invention that has met the patent requirements, 爰201128114 filed according to law. 201128114 [Simple diagram of the map] The first picture, the county (four) LED photo-based π The first drawing is a longitudinal sectional view of the preferred embodiment. The second drawing is a cross-sectional view of the preferred embodiment. The fourth drawing 'shows the lens of the difficult embodiment. A top perspective view of the lens of the preferred embodiment. A further top perspective view of the lens of the preferred embodiment. Figure 7 shows a longitudinal section of the lens of the preferred embodiment. Fig. 8 is a view showing the nature of the lens of the preferred embodiment. The ninth drawing of the convex curved surface shows a cross-sectional view of the lens of the preferred embodiment. The tenth figure shows the comparison. The preferred embodiment is applied to the light distribution of street lights. <11th picture 'Shows the North American Lighting Association (正s) to the streetlights ^^. Class standard., sentence light distribution points [main component symbol description] 1 light pole 2 Lamp housing 3 LED module 4 transmissive cover 5 circuit board 6 lens 61 main mirror body 610 incident surface 611 convex surface 62 sub mirror body 621 light entrance surface 622 reflection surface 623 light surface 63 positioning column 7 LED light source 8 heat sink fin group A center line B virtual axis