M380486 五、新型說明： 【新型所屬之技術領域】 本創作係有關於LED透鏡，尤指一種運用於路燈昭 明，並提供有對稱且均亮的照明區域之對稱式咖透鏡了 【先前技術】 近年來，由於全球暖化問題曰漸嚴重，使得具有節能 ;’石厌功效的環保產品備受重力，就照明方面而言，以發光 二極體（Light Emitting Diode; LED)最具有發展潛能盆 具有高亮度、痛、電、使用壽命較長等優點，並已逐漸取： 傳統燈泡，而被廣泛地運用於各種照明裝置上。M380486 V. New description: [New technical field] This creation is about LED lens, especially a symmetrical coffee lens that is used in streetlights and provides a symmetrical and bright illumination area. [Prior Art] Come, because the global warming problem is getting worse, it is energy-saving; the environmentally-friendly products that are effective in stone are subject to gravity. In terms of lighting, the most developed potential pots of Light Emitting Diodes (LEDs) have High brightness, pain, electricity, long life and other advantages, and has gradually taken the traditional light bulb, and is widely used in various lighting devices.
現有技術中應用於路燈的LED於其發光側罩設有LED 透鏡’使LED發光時所射出的光線可射入LEd透鏡產生 偏移折射，而該偏移折射的光線於射出LED透鏡表面時， 會進-步產生偏移折射’藉此調整LED所發射出的光線投 射於特定的方向。 然而，當路燈係設置於往來道路之間的分隔島上時， 現有技術t LED透鏡所能提供LED光線產生的偏移折射 效果無法有效將光線均勻照射於分隔島兩側的道路上，其 光線多集中照射於路燈設置處下方的分隔島上，造成道路 的照明效果欠佳，故有待加以改良。 【新型内容】 有鑑於前述現有技術之缺點，本創作之創作目的係在 於提供一種路燈用之對稱式LED透鏡，藉由設計出一具有 對稱結構的透鏡，以提供LED可投射出對稱且均勻的照明 3 M380486 區域。 為達到前述之創作目的，本創作所設計之路燈用之對 稱式LED透鏡，其係具有一透鏡本體，該透鏡本體係具有 一底面及於其周緣向上形成有一出光面，該底面内凹形成 有一模穴，該模穴的内凹面係為一入射面，透鏡本體對稱 於長軸向基準面，於底面周緣與該出光面的交接處形成 有一側邊線，透鏡本體依序間隔形成有一第一短轴向基準 面、一第二短軸向基準面及一第三短軸向基準面，第一與 第:短軸向基準面分別與側邊線的兩相交點距離係大於第 短軸向基準面與側邊線的兩相交點距離； 於^邊線相對於該長軸向基準面的距離為a麵，相對 有短軸向基準面的距離為b晒，側邊線依序包括 Π 二Γ:之(a’b):(〇 〇,7_^ .’6.8)、(2·4,6.4)、(”，㈠)、(3 :面):(4.6，— ^ &面位於一基準平面，出 線相對於基準平面的距離為：，、: =準二相交 準面的距離為d _，出光面與 单第一短軸向基 ；(〇〇'6'δ)'(〇·6'6·9Ηΐ.4,7,)- (土5,6.5)、（4.2,6.υ、（4 出光面與第一短軸向基準面 交線相對於基準平面的 $第二短軸向基準面的相 面的距離為fmm，出光面與^咖’相對於長轴向基準 向基準面的相交線依序包括有㈣向基準面或第三短軸 括有如下各點之（e,f):(〇〇 4 (〇,8,4,6) ' (1-5·4·5) ' (2.3,4.4) ^ (3.1,4.1) > (4.0,3.6) ^ 二:·”、(5.2,2.3)、(5 71 ”及(5 8 〇 〇)，上述各數值 误差範圍為±0.03 mm。 所述之路燈用之對稱式LED透鏡，其中該出光面與該 入射面係具有不同的曲率。 本創作所提供之路燈用之對稱式LED透鏡，可以獲得 的優點及功效增進至少包括：LED發光體所發射出的光線 係透過本創作之透鏡本體產生有折射效果，其光線所投射 :的’、、、明區域係以長軸向基準面呈兩側對稱，當應用在分 隔島上的路燈時，能同時照射於往來的兩側道路上，且提 供有均勻的亮度，使能源獲得較佳之利用。 【實施方式】 請參閱第一圖所示，本創作之路燈用之對稱式led透 鏡，其係具有一透鏡本體（1〇)，該透鏡本體（1〇)係呈長形， 其具有一底面（11)及於其周緣向上形成有一出光面（12)， 该底面（1 1)内凹形成有一模穴（1彳彳），該模穴（111)係具有 一裝設部（11 3)及該裝設部（113)的内凹面形成有—入射面 (112) ’該出光面（12)與該入射面（112)係具有不同的曲率； 請參閱第二圖所示，透鏡本體（1〇)對稱於一長軸向基 準面（X) ’於底面（11)周緣與該出光面（12)的交接處形成有 一側邊線（13)，透鏡本體（1〇)依序間隔形成有一第一短軸 向基準面（丫1)、一第二短軸向基準面（丫2)及一第三短軸向 基準面（Y3)，該第一短軸向基準面（丫1)與側邊線（13)的兩 相交點為A及A’ ’該第二短軸向基準面（γ2)與側邊線（13) 的兩相交點為Β及Β，該第三短軸向基準面（γ3)與側邊線 M380486 (13)的兩相父點為C及C，，其中a與A1之間的距離以及C 與C’之間的距離係大於B與B，之間的距離，圖中具體實 施例所示，該透鏡本體（1〇)的外形呈葫蘆狀； 側邊線（13)相對於該長軸向基準面（χ)的距離為a mm，侧邊線（13)相對於該第二短軸向基準面（γ2)的距離為 b mm，側邊線（13)依序包括有如下各點之（ab): (〇 q,7 〇)、 (0.5,7.0). (0.9,6.9). (1.4,6.8). (2.4,6.4) ， (3.1,6.0)^ (3.5,5.6)、(4.0,5.0)、(4.5,4_〇)、(4·6,3.0)、(4.5,2.0)、(4.3,1.0) 及（4_1,0.〇)，數值誤差範圍為±〇〇3阳阳； 請參閱第三圖所示，底面（11)位於一基準平面（z)，出 光面（1 2)與長軸向基準面（χ)的相交線相對於基準平面 的距離為c mm，出光面（12)與長軸向基準面（χ)的相交線 相對於第二短軸向基準面（Υ2)的距離為d mm，出光面（12) 與長轴向基準面（X)的相交線依序包括有如下各點之d广 (°〇-6.8) > (0.6,6.9) ^ (1.4,7.0) . (2.5,6.9) . (3.5,65). (4·2’6.”、（4·8,5_4)、（5·4,4·3)、（5 8,2 9)、（5 814)及 (5·8,0·〇)，數值誤差範圍為±〇 〇3； 請參閱第四圖所示’出光面（12)與第一短轴向基準面 或第二短軸向基準面（Y3)的相交線相對於基準平面 =距離為e mm’ 面（12)與第—短軸向基準面（γι)或第 ::軸向基準面(Υ3)的相交線相對於長軸向基準面(X)的距 為f mm，出光面（12)與第一短軸向基準面 =向基準面（丫3)的相交線依序包括有如下 ::: 〇,3斗（4.5,3」）、^ 6 值誤差範圍為±0.03 mm。 —凊參閱第五及六圖所示，LED發光體（2〇)係裝設於模 (1)中並位於長軸向基準面(X)與第二短軸向基準面(丫2) 上’ LED發光體（2Q)發光時所產生的光線L1彳直接穿透 透鏡本體⑽’光線1_2可從人射面⑴2)射入透鏡本體（1〇) 内。P並同時產生有偏移折射現象，而該偏移折射的光線於 出光面（12)射出時，亦進—步產生偏移折射，冑此可達到 控制光線投射於特定區域之目的。 請參閱第七圖所示，A LED I光體（2〇)透過本創作之 透鏡本體（10)所投射出的等照度分布圖，圖上表示的χ軸 與z軸的座標的單位皆為毫米（mM|imeters)，左側為照度 量表，其單位為勒克斯（|UX)，座標（〇〇)係為LED發光體（2〇) 設置處，其投射出的照明區域略呈矩形，該矩形的長邊方 向係對稱延伸於座標（〇,〇)左、右兩側；請配合參閱第八圖 所示，圖上外圍的徑向座標為角度，單位為度（。），軸向座 標為光強（luminous intensity)，單位為燭光（cd)，第一曲 線（La)為第七圖之照明區域長邊方向的配光，第二曲線（Lb) 為第七圖之照明區域短邊方向的配光，由.第七及八圖所 不’本創作提供有照度均勻且對稱的光線分布。 本創作於實際使用在分隔島上的路燈時，LED發光體 (20)所發出之光線透過透鏡本體（1〇)產生折射後，所形成 的照明區域可確實分布至分隔島兩側的道路上，並提供均 勻的照度，進而讓該照射環境下的使用者能具有較為舒適 的視覺效果。 【圖式簡單說明】 第一圖係本創作之立體外觀圖。 第二圖係本創作之上視圖。 第三圖係本創作之側剖面圖。 第四圖係本創作之正剖面圖。 第五圖係本創作之側視使用示意圖。 第六圖係本創作之正視使用示意圖。 第七圖係設置於本創作之LED之等照度分布圖。 第八圖係設置於本創作之LED之配光曲線圖。 【主要元件符號說明】In the prior art, the LED applied to the street lamp is provided with an LED lens in its light-emitting side cover. The light emitted by the LED can be incident on the LEd lens to generate offset refraction, and the offset-refracted light is emitted from the surface of the LED lens. The step-in-step produces an offset refraction 'by adjusting the light emitted by the LED to project in a particular direction. However, when the street lamp system is disposed on the separation island between the roads, the offset light refraction effect of the LED light provided by the prior art t LED lens cannot effectively illuminate the light uniformly on the road on both sides of the island, and the light is large. Concentrated illumination on the island below the streetlight setting, resulting in poor lighting effects, so it needs to be improved. [New content] In view of the above-mentioned shortcomings of the prior art, the purpose of the creation is to provide a symmetrical LED lens for a street lamp, by designing a lens with a symmetrical structure to provide an LED that can be projected symmetrically and uniformly. Lighting 3 M380486 area. In order to achieve the above-mentioned creative purpose, the symmetrical LED lens for a street lamp designed by the present invention has a lens body, the lens system has a bottom surface and a light emitting surface is formed on a periphery thereof, and the bottom surface is concavely formed. a cavity, the concave surface of the cavity is an incident surface, the lens body is symmetrical to the long axial reference surface, and a side edge is formed at the intersection of the periphery of the bottom surface and the light exit surface, and the lens body is formed with a first interval a short axial reference plane, a second short axial reference plane and a third short axial reference plane, wherein the distance between the first and the second short axis reference planes and the two sides of the side line is greater than the short axis The distance between the two points of the reference plane and the side line; the distance from the edge line to the long axis reference plane is a plane, and the distance from the short axial reference plane is b, and the side lines are sequentially included. Γ: (a'b): (〇〇, 7_^ .'6.8), (2·4, 6.4), (", (1)), (3: face): (4.6, - ^ &face; The reference plane, the distance of the exit line from the reference plane is:,,: = the distance of the quasi-two-phase cross plane is d _, the illuminating surface With a single first short axial base; (〇〇'6'δ)' (〇·6'6·9Ηΐ.4,7,)- (soil 5,6.5), (4.2,6.υ, (4 light) The distance between the surface and the first short-axis reference plane intersection with respect to the phase plane of the second short-axis reference plane of the reference plane is fmm, and the intersection of the light-emitting surface and the long-axis reference plane with respect to the long-axis reference plane In order to include (4) (e), the reference point or the third short axis includes (e, f): (〇〇4 (〇,8,4,6) ' (1-5·4·5) ' ( 2.3,4.4) ^ (3.1,4.1) > (4.0,3.6) ^ Two:··, (5.2,2.3), (5 71 ” and (5 8 〇〇), the above numerical error range is ±0.03 mm The symmetrical LED lens for the street lamp, wherein the illuminating surface and the incident surface have different curvatures. The symmetrical LED lens for the street lamp provided by the present invention can obtain advantages and enhancements including at least: LED The light emitted by the illuminator is refracted by the lens body of the present invention, and the ray is projected: the ', , and bright regions are bilaterally symmetrical with respect to the long axial reference surface, when applied to the street lamp on the island At the same time, it can simultaneously illuminate the two sides of the road The above is provided with uniform brightness, so that the energy source can be better utilized. [Embodiment] Referring to the first figure, the symmetric LED lens for the street lamp of the present invention has a lens body (1〇). The lens body (1〇) has an elongated shape, and has a bottom surface (11) and a light emitting surface (12) formed on a periphery thereof, wherein the bottom surface (11) is concavely formed with a cavity (1彳彳). The cavity (111) has a mounting portion (113) and an inner concave surface of the mounting portion (113) is formed with an incident surface (112). The light emitting surface (12) and the incident surface (112) are Having different curvatures; as shown in the second figure, the lens body (1〇) is symmetric with respect to a long axial reference plane (X)'. One side is formed at the intersection of the periphery of the bottom surface (11) and the light exit surface (12). The edge line (13), the lens body (1〇) is sequentially formed with a first short axial reference plane (丫1), a second short axial reference plane (丫2) and a third short axial reference plane. (Y3), the intersection of the first short-axis reference plane (丫1) and the side line (13) is A and A′′, the second short-axis reference plane (γ2) The two intersecting points of the side line (13) are Β and Β, and the two-phase parent points of the third short-axis reference plane (γ3) and the side-line M380486 (13) are C and C, where a and A1 The distance between the distances and C and C' is greater than the distance between B and B. As shown in the specific embodiment, the lens body (1〇) has a shape of a gourd; the side line (13) The distance from the long axial reference plane (χ) is a mm, the distance of the side line (13) with respect to the second short axial reference plane (γ2) is b mm, and the side line (13) is sequentially included There are the following points (ab): (〇q,7 〇), (0.5,7.0). (0.9,6.9). (1.4,6.8). (2.4,6.4) , (3.1,6.0)^ (3.5, 5.6), (4.0, 5.0), (4.5, 4_〇), (4·6, 3.0), (4.5, 2.0), (4.3, 1.0) and (4_1, 0.〇), the numerical error range is ± 〇〇3阳阳; Please refer to the third figure, the bottom surface (11) is located in a reference plane (z), the intersection of the light exit surface (12) and the long axial reference plane (χ) with respect to the reference plane For c mm, the intersection of the light exit surface (12) and the long axial reference plane (χ) with respect to the second short axial reference plane (Υ2) is d mm, the light exit surface (12) The intersection line with the long axial reference plane (X) sequentially includes the following points (°〇-6.8) > (0.6,6.9) ^ (1.4,7.0) . (2.5,6.9) (3.5,65). (4·2'6.", (4·8,5_4), (5·4,4·3), (5 8,2 9), (5 814) and (5· 8,0·〇), the numerical error range is ±〇〇3; Please refer to the intersection of the 'light-emitting surface (12) and the first short-axis reference surface or the second short-axis reference surface (Y3) as shown in the fourth figure. Line relative to the reference plane = distance e mm' The intersection of the plane (12) with the first-short axial reference plane (γι) or the :: axial reference plane (Υ3) with respect to the long axial reference plane (X) The distance between the light-emitting surface (12) and the first short-axis reference surface = the reference plane (丫3) is as follows:: 〇, 3 buckets (4.5, 3"), ^ The 6 value error range is ±0.03 mm. —凊—As shown in Figures 5 and 6, the LED illuminator (2〇) is mounted in the mold (1) and is located on the long axial reference plane (X) and the second short axial reference plane (丫2). The light L1 generated by the LED illuminator (2Q) emits light directly through the lens body (10). The light 1_2 can be incident into the lens body (1〇) from the human emitting surface (1) 2). P also produces an offset refraction phenomenon, and the light refracted by the offset is also subjected to offset refraction when the light exiting surface (12) is emitted, thereby achieving the purpose of controlling the projection of light onto a specific area. Referring to Figure 7, the A illuminator (2 〇) is an equal illuminance distribution projected by the lens body (10) of the present invention. The coordinates of the χ and z axes are shown in the figure. Millimeter (mM|imeters), the left side is the metric scale, the unit is lux (|UX), the coordinate (〇〇) is the LED illuminant (2〇) setting, and the projected illumination area is slightly rectangular. The long side direction of the rectangle extends symmetrically on the left and right sides of the coordinates (〇, 〇); please refer to the eighth figure, the radial coordinate of the periphery of the figure is the angle, the unit is degree (.), the axial coordinate For luminous intensity, the unit is candle light (cd), the first curve (La) is the light distribution in the long-side direction of the illumination area of the seventh picture, and the second curve (Lb) is the short side of the illumination area in the seventh picture. The light distribution in the direction, provided by the seventh and eighth figures, provides a uniform and symmetrical light distribution. When the street light actually used on the island is actually used, the light emitted by the LED illuminator (20) is refracted through the lens body (1 〇), and the formed illumination area can be surely distributed to the road on both sides of the island. It also provides uniform illumination, which allows users in the illuminated environment to have a more comfortable visual effect. [Simple description of the diagram] The first picture is a three-dimensional appearance of the creation. The second picture is a top view of the creation. The third picture is a side cross-sectional view of the creation. The fourth picture is a front section of the creation. The fifth picture is a schematic view of the side view of the creation. The sixth picture is a schematic diagram of the use of this creation. The seventh picture is the illumination distribution map of the LEDs set in this creation. The eighth picture is the light distribution curve of the LED set in this creation. [Main component symbol description]
(Lb)第二曲線 一短軸向基準面 (Y3)第三短軸向基準面 (La)第一曲線(Lb) second curve a short axial reference plane (Y3) third short axial reference plane (La) first curve