201128133 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種發光二極體燈具，尤係一種能提供發光 二極體出光呈扁平均勻分配的發光二極體指示燈。 [0002] C先前技術3 傳統光源所消耗的能源極為可觀，而半導體照明採用發 光二極體（LED)為光源，該新光源以其高光效、低耗能、 長壽命、環保（不含汞）、體積小、啟動快、指向性、耐 〇 [0003] 衝擊及耐震動等優點，具有廣泛取代傳統光源的潛力。 基於公共女全的考量’世界各國對於消防應急指示燈的 要求均有專門的規範，是所有公共建築必須依規定普遍 安裝且性能需達一定水準的基本安全設施，有別於其他 消防應急設施只在應急狀況下才啟動其功能，消防應急 指示燈必須全年無休的點亮，要求在正常外電源供電點 亮時亦將所附蓄電池充電，在停電時立即切換至蓄電池 供電，並需在滿足規範的亮度要求下至少能維持—段長 G 時間的點亮。由蜂需求數量相當龐大，且需全年無休的 點亮，以致節能、亮度及壽命成為消防應急指示燈的基 本要求。 [0004] 基於上述發光二極體光源的諸多優點，運用發光效率高 使用壽命長的發光二極體於消防應急指示燈的光源，不 但可以使用與傳統應急燈相同蓄電容量的電池達到更長 的應急時間’並能顯示亮度更高的指示牌訊息，從而能 提升消防應急逃生的安全性。 [0005] 099103138 目前市場上的消防應急指示燈已逐漸捨棄傳統光源而採 表單編號A0101 第3頁/共32頁 0992005904-0 201128133 用燈珠型（through —hole)發光二極體光源；惟由於燈珠 型發光一極體光源在使用一段短時間後即會出現明顯的 光衰與出光不穩定的現象而為業界所話病，以致目前市 場上使用燈珠型發光二極體消防應急指示燈往往很快即 失去初裝時的光亮而日趨暗淡，甚至不堪長期持續的點 亮而失效。 [0006] [0007] 習知的表面黏貼型（SMD)發光二極體光源由於基本結構與 製程工藝的改善，使發光效率 '壽命及穩定性均已明顯 超越燈珠型，且相較於燈珠型發光二極體光源必須以人 工插件的方式與電路板結合，因表面黏貼技術（s Μ τ )的成 熟使表面黏貼型發光二極體光源具有快速大量生產的製 程優勢；惟直接將之應用在濟防應急指示燈以顯示厚度 僅約20〜40mm的扁長形照明空間，以照亮約4〇〇xl5〇mjn 的指示牌時’因表面黏貼型的發光角過大（通常大於120 度）而呈現出接近光源處的指示光亮，離光源稍遠的指示 即逐漸暗淡，以致配光不均的j見象甚盖木及燈珠型，因 此欲將表面黏貼型發光二極體應用於消防應急指示燈上 以發揮上述諸多優點前必需先克服均勻配光的問題。 另一方面，目前市場上所見任何形式的發光二極體光源 均是由至少一發光晶片經透明封裝所形成的點光源，因 此任何發光角皆呈圓錐狀隨距離擴散的出光型態，直接 將之應用於扁平形的消防應急指示牌上，將使高比率的 出光提前散失，不但對均勻配光不利，且無法對指示牌 的整體亮度有所貢獻而形成嚴重的浪費，因此需用較高 功率的光源或增加光源的數量才能達到一定的亮度要求 099103138 表單編號A0101 第4頁/共32頁 0992005904-0 201128133 ，如此不但增加成本且因耗電量增加而使應急發光的時 間縮短，直接造成對消防安全的威脅。因此，如何有效 運用光源的出光，以提升消防應急的安全效益，並發揮 節電的經濟效益，是必需解決的問題。 【發明内容】 [0008] 有鑒於此，有必要提供一種能有效運用發光二極體出光 使達到均勻配光的發光二極體燈具。 [0009] 一種發光二極體燈具，包括扁平狀的燈殼及收容於燈殼 0 内的複數發光二極體模組，該複數發光二極體模組設置 於燈殼的其中一邊框上且沿燈殼的長度方向排成一行， 該複數發光二極體模組出光呈扁平狀，發光二極體模組 沿燈殼的長度方向之出光角大於沿燈殼的厚度方向之出 光角。 [0010] 本發明具有如下優點： [0011] 提供一種能使用表面黏貼型發光二極體光源並大幅改善 需滿足特殊光學要求的發光二極體指示燈，藉由二次透 鏡的結構設計，使表面黏貼型發光二極體指示燈的出光 經由該透鏡射出後以逐步漸進的匯聚方式，滿足燈殼前 後方向的出光有較大的匯聚幅度，燈殼左右方向的出光 有相對較小的匯聚幅度且使相鄰發光體的出光邊界因部 分重疊而獲得較佳的混光效果，達到改善習知消防應急 指示燈的缺失，並使扁平狀照明空間的指示牌顯示均勻 的亮度。 [0012] 提供一種能提升消防應急安全性的發光二極體指示燈， 099103138 表單編號 A0101 第5頁/共32頁 0992005904-0 201128133 藉由透鏡的導光設計以充分利用發光二極體的光通量並 有效降低光損失，使表面黏貼型發光二極體光源的出光 改變為符合消防應急指示燈的扁平型態，在停電應急時 提供更長的指示時間及顯示更亮且均勻的指示牌訊息， 達到顯著提升消防應急逃生的安全性。 [0013] [0014] [0015] 099103138 提供一種具有節電與經濟效益的發光二極體指示燈，藉 由透鏡與表面黏貼發光二極體的結合，不但因光效提高 與出光的充分利用而可精簡發光二極體的數量及降低指 示燈的耗能，並在大量採用且正常供電的不間斷點亮期 丨 間發揮穩定出光及聚沙成塔的節電省錢效益，亦由於表 面黏貼型發光二極體的長壽命以及與電路板匹配的量產 性，可發揮簡化製程工藝、提升量產效率及降低成本之 經濟效益。 【實施方式】 以下參照圖1至圖10，對本發明發光二極體燈具1予以進 一步說明。 圖1係本發明發光二極體燈具1第一實施例之正面立體外 觀圖，圖2係圖1中拆去正面指示牌22以顯示内部配置之 一立體外觀圖，圖3係圖1中透鏡50之一立體外觀圖，圖4 係圖1中透鏡50安裝於基板31沿燈殼2前後方向之剖面及 光學特性圖，圖5係圖1中透鏡50安裝於基板31沿燈殼2左 右方向之剖面及光學特性圖；該發光二極體燈具1包括一 燈殼2、一電氣部4及一光源部3。其中： 該燈殼2包括由一框架21及至少一指示牌22組成的扁平中 空殼體，該指示牌22上設有欲顯示的標示221，例如圖形 表單編號A0101 第6頁/共32頁 0992005904-0 [0016] 201128133 、文字、符號等，該標示221採用透光處理，指示牌22上 的其餘部分則為不透光區222，因此可藉由點亮設於燈殼 2内的光源來突顯指示牌22上的標示221 ;為便於說明結 構的相關方向，以X軸為前後方向（即燈殼2的厚度方向） ，Y軸為左右方向（即燈殼2的長度方向），Z軸為上下方向 (即燈殼2的高度方向）；該指示牌22可依需求而設於框架 21的前側面並以不透光的背板25設於後側面，亦可將該 指示牌22分別設於框架21的前後（X轴方向）兩側面。該燈 殼2還包括設於框架21内部並與框架21左右（Y軸方向）兩 側壁面及頂部（Z軸有向）壁面維持一定距離的隔板23，所 述隔板23與設於框架21底部的光源部3在燈殼2内合圍形 成一扁平的照明空間24，以使燈殼2内照明空間24左右兩 側在框架21與隔板23之間形成的腔室分別用以容置電路 板42與蓄電池41，以及與照明空間24上锄在框架21與隔 板23之間形成的腔室成為容置電源線的線槽213，該電源 線通過框架21位於上側的線孔210將外部電源接引至該線 槽213内*罩蓋於該照明空間24前後相的指示牌22可由光 源部3出光顯示其上的標示221，為使指示牌22上的標示 221亮度有較佳的均勻性，圍設於照明空間24周邊的隔板 23可採用反光面231 ;該燈殼2上還設有顯示該發光二極 體燈具1運作的狀態燈211。 [0017] 電氣部4包括一電路板42及至少一蓄電池41，所述電路板 42及蓄電池41分別設於燈殼2的左右兩侧由框架21與隔板 23所形成的細長腔室内，該電路板42包括一整流濾波電 路、一充電電路、一蓄電池41電路及一轉換控制電路， 099103138BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-emitting diode lamp, and more particularly to a light-emitting diode lamp capable of providing a flat and even distribution of light emitted from a light-emitting diode. [0002] C Prior Art 3 Traditional light sources consume a very large amount of energy, and semiconductor lighting uses a light-emitting diode (LED) as a light source, which is high in luminous efficiency, low in energy consumption, long in life, and environmentally friendly (without mercury). ), small size, fast start, directivity, resistance to 〇 [0003] impact and vibration resistance, has the potential to widely replace traditional light sources. Based on the considerations of public women's countries, there are special requirements for fire emergency indicator lights in all countries. It is a basic safety facility that all public buildings must be installed according to regulations and the performance needs to reach a certain level. It is different from other fire emergency facilities. In the emergency situation, the function is activated. The fire emergency indicator light must be turned on all the year round. It is required to charge the attached battery when the normal external power supply is turned on. When the power is cut off, the battery is immediately switched to the battery power supply. The specification of the brightness requirement can at least maintain the illumination of the segment length G time. The demand for bees is quite large and needs to be lit up all the year round, so that energy saving, brightness and longevity become the basic requirements for fire emergency indicators. [0004] Based on the advantages of the above-mentioned light-emitting diode light source, the light source with high luminous efficiency and long service life is used for the light source of the fire emergency indicator light, and the battery with the same storage capacity as the conventional emergency light can be used for a longer period. The emergency time 'can display the brighter sign information, which can improve the safety of fire emergency escape. [0005] 099103138 The fire emergency indicator on the market has gradually abandoned the traditional light source and adopts the form number A0101. Page 3/32 pages 0992005904-0 201128133 Light-emitting diode (through-hole) light source; Lamp-type light-emitting one-pole light source will have obvious light decay and light-out instability after a short period of use, which is a disease in the industry, so that the current use of lamp-type LED light-emitting emergency indicator light on the market It often loses the light of the initial installation and becomes increasingly dim, even failing to illuminate for a long time. [0006] [0007] The conventional surface-adhesive (SMD) light-emitting diode light source has improved the basic efficiency and process technology, so that the luminous efficiency 'life and stability have significantly exceeded the lamp-bead type, and compared with the lamp The bead-shaped light-emitting diode light source must be combined with the circuit board by means of a manual plug-in. Due to the maturity of the surface-adhesive technology (s Μ τ ), the surface-adhesive light-emitting diode light source has the advantage of rapid mass production; Applicable to the emergency light in the emergency to display a flat long lighting space with a thickness of only about 20~40mm to illuminate the sign of about 4〇〇xl5〇mjn. 'Because the surface-adhesive type is too large (usually greater than 120 degrees) ), the indicator light that is close to the light source is displayed, and the indication that is slightly farther from the light source is gradually dimmed, so that the uneven light distribution is like the cover wood and the lamp bead type, so the surface-adhesive light-emitting diode is applied. The fire emergency indicator must overcome the problem of uniform light distribution before exerting the above advantages. On the other hand, any form of light-emitting diode light source seen on the market is a point light source formed by transparently packaging at least one light-emitting chip, so that any light-emitting angle is conical and diffuses with distance, and will directly It is applied to the flat fire emergency sign, which will cause the high ratio of light to be dissipated in advance, which is not only unfavorable for uniform light distribution, but also can not contribute to the overall brightness of the sign, resulting in serious waste, so it needs to be higher. The power source or the number of added light sources can reach a certain brightness requirement 099103138 Form No. A0101 Page 4 / Total 32 Pages 0992005904-0 201128133 , which not only increases the cost but also shortens the emergency lighting time due to the increase of power consumption, directly causing A threat to fire safety. Therefore, how to effectively use the light source of the light source to improve the safety benefits of fire emergency and to play the economic benefits of power saving is a problem that must be solved. SUMMARY OF THE INVENTION [0008] In view of the above, it is necessary to provide a light-emitting diode lamp that can effectively utilize the light output of the light-emitting diode to achieve uniform light distribution. [0009] A light-emitting diode lamp includes a flat lamp housing and a plurality of LED modules housed in the lamp housing 0. The plurality of LED modules are disposed on one of the bezels of the lamp housing. The light-emitting diode modules are arranged in a flat shape along the length direction of the lamp housing, and the light-emitting diode module has a light exit angle along the length direction of the lamp housing greater than the light exit angle along the thickness direction of the lamp housing. [0010] The present invention has the following advantages: [0011] Providing a light-emitting diode light source capable of using a surface-adhesive light-emitting diode light source and greatly improving a special optical requirement, by the structural design of the secondary lens The light of the surface-adhesive LED is emitted through the lens in a stepwise and progressive manner, and the light in the front-rear direction of the lamp shell has a large convergence range, and the light in the left-right direction of the lamp shell has a relatively small convergence range. Moreover, the light-emitting boundary of the adjacent illuminants is partially overlapped to obtain a better light-mixing effect, so that the lack of the conventional fire emergency indicator light is improved, and the indicator of the flat illumination space is displayed with uniform brightness. [0012] Providing a light-emitting diode indicator lamp capable of improving fire emergency safety, 099103138 Form No. A0101 Page 5 / Total 32 Page 0992005904-0 201128133 By utilizing the light guiding design of the lens to fully utilize the luminous flux of the light-emitting diode And effectively reduce the light loss, so that the light of the surface-adhesive light-emitting diode light source is changed to meet the flat type of the fire emergency indicator light, providing a longer indication time and displaying a brighter and more uniform signage message in the event of a power failure emergency. Achieve a significant increase in the safety of fire emergency escape. [0015] [0015] 099103138 provides a light-emitting diode with a power-saving and economical benefit, the lens and the surface adhere to the combination of the light-emitting diode, not only due to improved light efficiency and full utilization of light output The number of light-emitting diodes is reduced and the energy consumption of the indicator lamps is reduced, and the power saving and economy benefits of stabilizing light and sand-forming towers are achieved during the uninterrupted lighting period of a large number of normal power supplies, and also due to surface-adhesive light-emitting diodes. The long life and mass-matching of the board can be used to simplify the process, increase mass production efficiency and reduce cost. [Embodiment] Hereinafter, a light-emitting diode lamp 1 of the present invention will be further described with reference to Figs. 1 to 10 . 1 is a front perspective view of a first embodiment of a light-emitting diode lamp 1 according to the present invention, and FIG. 2 is a perspective view showing a stereoscopic appearance of the front display card 22 in FIG. 1 to show an internal configuration, and FIG. 3 is a lens of FIG. 50 is a three-dimensional appearance view, FIG. 4 is a cross-sectional view and optical characteristic diagram of the lens 50 mounted on the substrate 31 along the front-rear direction of the lamp housing 2, and FIG. 5 is the lens 50 mounted on the substrate 31 in the left-right direction of the lamp housing 2 The cross-section and optical characteristic diagram; the LED lamp 1 includes a lamp housing 2, an electric portion 4, and a light source portion 3. Wherein: the lamp housing 2 comprises a flat hollow casing composed of a frame 21 and at least one indicator plate 22, and the indicator plate 22 is provided with a mark 221 to be displayed, for example, a graphic form number A0101, page 6 / total 32 pages 0992005904-0 [0016] 201128133, text, symbols, etc., the label 221 is light transmissive, and the rest of the sign 22 is the opaque area 222, so that the light source provided in the lamp housing 2 can be illuminated To highlight the indication 221 on the sign 22; for convenience of explaining the relevant direction of the structure, the X-axis is the front-rear direction (ie, the thickness direction of the lamp housing 2), and the Y-axis is the left-right direction (ie, the length direction of the lamp housing 2), Z The axis is in the up and down direction (ie, the height direction of the lamp housing 2); the sign 22 can be disposed on the front side of the frame 21 as needed and disposed on the rear side with the opaque back plate 25, and the sign 22 can also be used. They are respectively provided on both sides of the front and rear (X-axis direction) of the frame 21. The lamp housing 2 further includes a partition plate 23 disposed inside the frame 21 and maintaining a certain distance from the left and right (Y-axis direction) side wall surfaces and the top (Z-axis directional) wall surface of the frame 21, the partition plate 23 and the frame The light source part 3 at the bottom of the lamp 21 is enclosed in the lamp housing 2 to form a flat illumination space 24, so that the chambers formed between the frame 21 and the partition 23 on the left and right sides of the illumination space 24 in the lamp housing 2 are respectively accommodated. The circuit board 42 and the battery 41, and the chamber formed between the frame 21 and the partition 23 with the illumination space 24 serve as a wire slot 213 for accommodating the power supply line, and the power supply line passes through the wire hole 210 of the upper side of the frame 21. The external power source is connected to the slot 213. The sign 22 covering the front and rear of the illumination space 24 can be light-expressed by the light source unit 3 to display the indicator 221 thereon, so that the brightness of the indicator 221 on the sign 22 is better. For the uniformity, the partition 23 surrounding the illumination space 24 may adopt a reflective surface 231; the lamp housing 2 is further provided with a status light 211 for displaying the operation of the LED lamp 1. [0017] The electrical part 4 includes a circuit board 42 and at least one battery 41. The circuit board 42 and the battery 41 are respectively disposed in the elongated chamber formed by the frame 21 and the partition 23 on the left and right sides of the lamp housing 2, The circuit board 42 includes a rectifying and filtering circuit, a charging circuit, a battery 41 circuit and a conversion control circuit, 099103138
表單編號A010I 第7頁/共32頁 0992005904-0 201128133 並整合上述電路於同一電虼> 塊中，用以提供發光二極 體3 2所需的驅動電源、控制♦狀 电路及電源管理；該蓄電池 41連接至所述電路板42之充* + 义屯電路的輸出端，作為停電 時發光二極體32的應急供電。該發光二極體犯的發光係 透過-組電線2U的-端分別連接平行躲框㈣底部的 基板31上的二電極（圖未示），該電線214的另一端分別連 接電氣部4中的電路板42與蓄電池41，以及透過另一組電 源線自燈殼2上端的線孔21〇引進外部電源（圖未示），並 與該電路板42的整流濾波電路電性連接，所述外部電源 除可為直流電源外，亦可透過電源轉換器將市電或其他 交流或直流電源轉換為適合該發光二極體32的電源，以 搭配該電路板42於正常供電時將光源點亮並透過蓄電池 41電路及充電電路使蓄電池41充電，遇停電時透過轉換 控制電路改由蓄電池41供電將光源點亮，以使發光二極 體燈具1進入應急供電狀態。 [0018] 光源部3平行設置於燈殼2内的框架21的底鄭以提供照明 空間2 4的均勻配光’其係由配置光源的基板31以及間隔 設置於該基板31上的複數黏貼型（SMD)發光二極體（LED) 模組30構成，每一發光二極體模組30包括一發光二極體 32及一與之搭配的透鏡。所述發光二極體32係由至少 一發光晶片321經透明封裝形成，所述基板31為一固定並 電連接該複數發光二極體32的電路板，透鏡50固定於基 板31上且罩設於發光二極體32之上，透鏡50使得發光二 極體32出光呈扁平狀且均勻分佈於照明空間24 ’以使指 示牌22上的標示221呈現均勻的亮度。 099103138 表單編號A0101 第8頁/共32頁 0992005904-0 201128133 [0019] 如圖3至圖5所示，透鏡50包括一底面501及設於底面501 之上的出光面502。為便於說明結構的相關方向’在這裡 引入三維直角座標系0-ΧΥΖ，其中0點在透鏡50之底面 501之中心，X軸與γ軸相交於〇點，X轴對應於透鏡50之 厚度方向（即燈殼2的前後方向），γ軸對應於透鏡5〇之長 度方向（即燈殼2的左右方向），z軸通過0點且垂直於透鏡 50的底面501(即燈殼2的高度方向），透鏡50的高度h對 應Z軸方向。 〇 [0020]該透鏡50係藉由二次光學的結構設計，以因應在燈具的 . .. . ........ ... .... ....... ... 燈殼2前後側相隔一滅奉舨離平行設置指示牌22的扁平配 光顯示要求，産使扁平狀的照明空間24中有較佳的亮度 均勻性。因此必須使發光晶片321的出光經由該透鏡5〇的 出光面502射出後在X方向的出光有較大的匯聚幅度，並 依據沿Y轴方向設置發光二極體模組30的數量與間距，適 度調整各發光二極體模組30在γ轴方向的出光角度，使相 鄰兩發光二極體模組30的出光邊界有部务重疊而達到良 Ο 好的混光效果’以均勻顯現在指示牌22中的標示221亮度 [0021]該透鏡50係由一長扁形橢球體沿XOY平面截斷形成，即透 鏡50的出光面502為橢球面，透鏡50的底面5〇1為橢圓形 [0022] 首先說明該透鏡50的形成方式：橢球體如以a (沿著X轴 099103138 )*b為赤道半徑（沿著Y軸），c為極半徑（沿著2軸） ，且滿足a<b<c，使該橢球體朝X軸方向至橢球面的距離 相較於朝y轴方向至橢球面的距離為短，且橢球體朝2轴 表單編號Α010Ϊ 第9頁/共32頁 0992005904-0 201128133 方向至橢球面的距離相較於朝γ軸方向至橢球面的距離為 長，以形成一長扁形的橢球體；該透鏡50係由所述長扁 形橢球體沿著ΧΟΥ平面切割，以在ΧΟΥ平面上形成一具有 橢圓形底面501的截斷橢球體；本實施例以該透鏡5〇的贿 圓形底面501沿著X軸方向之半短軸為f，沿著γ軸方向之 半長軸為g ’沿著Z轴方向之透鏡50高度為h，使該透鏡5〇 滿足：f<g<h ’且該透鏡50的橢圓形底面501中心（〇點） 低於所述橢球體中心（〇點），該橢球體中心（0齬）即為逯 鏡50的出光面502的立體中心’以形成一長扁形的載斷挪 球體。 [0023] 本實施例以在X軸方向邊長大於在Y轴方向邊長的典型矩 形黏貼型發光二極體32說明與所述透鏡5〇的匹配方式如 下：首先將該複數黏貼型發光二極體32沿γ軸方向（燈毂2 的長度方向）間隔一定距離分別黏貼於光源部3的基板31 ，並在透鏡50的底面501的中心處（〇點）凹設一可罩蓋所 述發光二極體32外周面的矩形容置槽5〇3，再分別以該逯 鏡50的Z轴垂直於今焉部3的基板31，並使該容置槽5〇3 罩設並定位於各發光二極體32上端，從而使發光晶片321 的出光面定位於所述透鏡50的橢圓形底面501之中心處（〇 點）。又’在該矩形容置槽503的頂部中心處凹設—入光 面505 ’該入光面505為球面’由於該球面的半徑限制在 大於從發光晶片321至Y軸方向容置槽503頂端邊緣的距離 ’以使5亥發光晶片321的出光經由該入光面505而均勻匯 聚並射入透鏡50 ;該容置槽503的邊緣還設有一朝外的導 角504，以防止在將發光二極體32固設於基板31上的黏貼 099103138 表單編號A0101 第10頁/共32頁 0992005904-0 201128133 製程中，可能出現的少量焊錫外溢於該發光二極體32周 邊而影響各透鏡50自容置槽503底部罩設定位的一致性。 另外，在該透鏡50的底部的左右兩側（γ軸）邊緣分別設置 一凹槽506，當所述透鏡50疋位於上述發光二極體32後可 在3亥兩凹槽506點膠’使透鏡5〇固定於基板μ上。 [0024] ❹ Ο 當該發光晶片321的光線以任一入射角通過槽頂的入光面 505可均勻匯聚而射入透鏡50内，再由通過透鏡5〇的任一 入射角（如圖4與圖5中的α角）通過所述擴球面上任一處 時，皆以一大於該入射角α的折射角（如圖4與圖5中的沒 角）型式將所述出光匯聚’且由於該透鏡5〇在叉軸方向具 有h/f>l的特性’故具有光線的匯聚效果，當透鏡5〇的 h/f值加大時聚光的效果會増強，但同時亦會增加透鏡5〇 的光損；又由於該透鏡50在Y軸方向具有h/g值界於1與 h/f值之間（亦即i<h/g<h/f)的特性，故對光線的匯聚幅 度較低，以達到發光二極體燈具1的前後側（X轴方向）遠 較左右側（Y軸方向）為窄的,配光要求，本實施例的透鏡5〇 適用於發光二極體燈具1中的基板31上設置較密排列的黏 貼型發光二極體32，在此狀況下並使發光二極體燈具1的 扁平狀照明空間24中有較佳的亮度均勻性與光能利用性 [0025] 圖6係本發明發光二極體燈具1第二實施例中透鏡51之一 立體外觀圖，圖7係圖6中透鏡51安裝於基板31沿燈殼2前 後（X軸）方向之剖面及光學特性圖，圖8係圖6中透鏡51安 裝於基板31沿燈殼2左右（Y軸）方向之剖面及光學特性圖 ;本實施例與第一實施例的區別在於所述透鏡51的橢圓 099103138 表單編號A0101 第11頁/共32頁 0992005904-0 201128133 形底面511中心（〇點）高於所述橢球體中心（〇點），以形 成一短扁形的載斷橢球體，由出光面512穿射出的光線仍 然滿足第一實施例的出光匯聚功能，唯在Υ軸方向的出光 僅有較小幅度的匯聚；另一區別在於入光面515為一完全 形成於矩形槽頂邊緣朝透鏡51内凹的較大弧狀曲面，例 如球面或橢球面，以取代第一實施例設置於矩形槽頂中 央朝透鏡50内凹的呈較小球面狀的入光面505，上述區別 使本實施例不但可有效消除矩形容置槽513邊緣與該入光 面515間的出光干擾，且由於該入光面515邊界的長寬比 係配合容置槽513沿X轴方向教長沿Υ軸方向較短的.矩形而 設’在X軸方向為較大的球狀弧面，可對該方向較多的出 光發揮較大的匯聚功能。容置槽513的邊緣亦設有一朝外 的導角514。 [0026] 另外，為再進一步匯聚在X軸方向的出光並對發光角較大 的出光作有效的利用，該透鏡51於Υ0Ζ平面兩側形成兩個 對稱的切面517 ’藉由界定該切面5176^切角7使發光晶 片321的出光與該切面517伊成的入射角0滿足大於臨界 .:: r .. | 角的全反射’該臨界角可由關係式0 c=arcSin(n2/ni)獲得，其中〜與％分別為透鏡51與空 氣的折射率，顯示透鏡51材料的折射率越高則臨界角越 小；例如：由PMMA (polymethyl methacrylate聚曱 基丙烯酸甲酯）材質的透鏡之折射率為匕49，臨界角為 42° ; PC(polycarbonate聚碳酸酯）材質的透鏡51之折 射率為1.59，界角為39 ;水透鏡之折射率為1 33， 臨界角為48.6。；金剛石之折射率為2.24，臨界角為 099103138 表單編號A0101 第12頁/共32頁 0992005904-0 201128133 ^ ❹θ大於的全反射條件下使所述出光 Ο [0027] 一射向該切面而可在完全無光損失的狀況下，以如圖7 斤:的人射角等於反射角的型式將所述出光完全反射回 作更進一步的匯聚；又，該切角7在透鏡51切割 、’ Μ位置應確保經由該頂點518射出的光線能到達 ^ 丁牌22的底緣212 ’以降低在指示牌22的底緣212以下 區域出現對指示牌22照明的無效出光，並將射向該頂點 518以下的所述無效出光藉由該切面所產生的全反射而轉 為有政出光，使原來射向指示牌22底緣212以下的無效出 光皆被反射到指示牌2 2底緣212以上成為對指示牌2 2照明 的有效出光。 上述切面517的切角τ係與由光源經入光面515射入透鏡 51的光線和z轴間的夾角0及透鏡51的材質有關 ，例如： 自入光面515射入PMMA透鏡51的夾角0分別為60。及90。Form No. A010I Page 7 of 32 pages 0992005904-0 201128133 and integrates the above circuit in the same circuit block to provide the driving power, control circuit and power management required for the LED 32; The battery 41 is connected to the output of the charging circuit of the circuit board 42 as an emergency power supply for the light-emitting diode 32 during power failure. The light-emitting diodes of the light-emitting diodes are respectively connected to the two electrodes (not shown) on the substrate 31 at the bottom of the parallel frame (4), and the other ends of the wires 214 are respectively connected to the electrical parts 4 The circuit board 42 and the battery 41, and an external power source (not shown) are introduced from the line hole 21 of the upper end of the lamp housing 2 through another set of power lines, and are electrically connected to the rectifying and filtering circuit of the circuit board 42, the external portion. In addition to the DC power supply, the power supply can also convert the commercial power or other AC or DC power supply into a power source suitable for the LED 32 through the power converter, so as to match the circuit board 42 to illuminate and transmit the light source during normal power supply. The battery 41 circuit and the charging circuit charge the battery 41. When the power is turned off, the battery 41 is powered by the power supply of the switching control circuit to illuminate the light source, so that the light-emitting diode lamp 1 enters the emergency power supply state. [0018] The light source portion 3 is disposed in parallel with the bottom of the frame 21 in the lamp housing 2 to provide uniform light distribution of the illumination space 24, which is composed of a substrate 31 on which the light source is disposed, and a plurality of adhesive patterns disposed on the substrate 31 at intervals The (SMD) light-emitting diode (LED) module 30 is configured. Each of the light-emitting diode modules 30 includes a light-emitting diode 32 and a lens matched thereto. The light emitting diode 32 is formed by transparently packaging at least one light emitting chip 321 . The substrate 31 is a circuit board fixed and electrically connected to the plurality of light emitting diodes 32 . The lens 50 is fixed on the substrate 31 and covered. Above the light-emitting diode 32, the lens 50 causes the light-emitting diodes 32 to emit light in a flat shape and evenly distributed in the illumination space 24' to cause the indicator 221 on the sign 22 to exhibit uniform brightness. 099103138 Form No. A0101 Page 8 of 32 0992005904-0 201128133 [0019] As shown in FIGS. 3 to 5, the lens 50 includes a bottom surface 501 and a light exit surface 502 disposed on the bottom surface 501. For convenience of explaining the relevant direction of the structure, a three-dimensional orthogonal coordinate system 0-ΧΥΖ is introduced here, wherein 0 point is at the center of the bottom surface 501 of the lens 50, the X axis intersects the γ axis at the defect point, and the X axis corresponds to the thickness direction of the lens 50. (ie, the front-rear direction of the lamp housing 2), the γ-axis corresponds to the longitudinal direction of the lens 5〇 (ie, the left-right direction of the lamp housing 2), and the z-axis passes through the 0 point and is perpendicular to the bottom surface 501 of the lens 50 (ie, the height of the lamp housing 2) Direction), the height h of the lens 50 corresponds to the Z-axis direction. 〇[0020] The lens 50 is designed by secondary optics to respond to the luminaire's . . . . . . . . . . . . . . . . . The front and rear sides of the lamp housing 2 are separated from each other by a flat light distribution display request for the parallel display of the signboard 22, which produces a uniform brightness uniformity in the flat illumination space 24. Therefore, it is necessary to cause the light emitted from the light-emitting chip 321 to be emitted through the light-emitting surface 502 of the lens 5 后 to have a large convergence amplitude in the X direction, and to set the number and spacing of the light-emitting diode modules 30 according to the Y-axis direction. Appropriately adjusting the light-emitting angle of each of the light-emitting diode modules 30 in the γ-axis direction, so that the light-emitting boundaries of the adjacent two-light-emitting diode modules 30 overlap with each other to achieve a good light-mixing effect. The indication 221 brightness in the sign 22 [0021] The lens 50 is formed by cutting a long oblate ellipsoid along the XOY plane, that is, the light exit surface 502 of the lens 50 is an ellipsoidal surface, and the bottom surface 5 〇 1 of the lens 50 is elliptical [0022] First, the manner in which the lens 50 is formed is as follows: an ellipsoid such as a (along the X-axis 099103138)*b is an equatorial radius (along the Y-axis), c is a polar radius (along the 2-axis), and satisfies a<b<;c, the distance from the ellipsoid to the ellipsoid is shorter than the distance from the y-axis to the ellipsoid, and the ellipsoid is numbered toward the 2-axis form Α010Ϊ Page 9/32 pages 0992005904-0 201128133 The distance from the direction to the ellipsoid is compared to the direction toward the γ axis to the ellipsoid The distance is long to form a long flat ellipsoid; the lens 50 is cut along the plane of the oblate ellipsoid to form a truncated ellipsoid having an elliptical bottom surface 501 on the pupil plane; The semi-minor axis of the brittle circular bottom surface 501 of the lens 5 沿着 along the X-axis direction is f, and the semi-major axis along the γ-axis direction is g 'the height of the lens 50 along the Z-axis direction is h, so that the lens 5〇 satisfies: f<g<h' and the center (〇 point) of the elliptical bottom surface 501 of the lens 50 is lower than the center of the ellipsoid (〇 point), and the center of the ellipsoid (0龉) is the 逯 mirror 50 The solid center of the light exiting surface 502' is formed to form a long flat load-shifting sphere. [0023] In this embodiment, a typical rectangular adhesive type LED 32 having a side length in the X-axis direction greater than a side length in the Y-axis direction is described as being matched with the lens 5〇 as follows: First, the plurality of pasting type light-emitting lights are The pole bodies 32 are adhered to the substrate 31 of the light source unit 3 at a distance from each other in the γ-axis direction (the longitudinal direction of the hub 2), and a cover can be recessed at the center of the bottom surface 501 of the lens 50. The rectangular receiving groove 5〇3 of the outer peripheral surface of the light-emitting diode 32 is perpendicular to the substrate 31 of the present dome 3 by the Z-axis of the mirror 50, and the receiving groove 5〇3 is covered and positioned The upper end of the light-emitting diode 32 is positioned such that the light-emitting surface of the light-emitting wafer 321 is positioned at the center of the elliptical bottom surface 501 of the lens 50 (defect). In addition, the light incident surface 505 is recessed at the center of the top of the rectangular receiving groove 503. The light incident surface 505 is a spherical surface. The radius of the spherical surface is limited to be larger than the top of the receiving groove 503 from the light emitting chip 321 to the Y-axis direction. The distance of the edge is such that the light emitted from the illuminating chip 321 is uniformly concentrated and incident on the lens 50 through the light incident surface 505; the edge of the accommodating groove 503 is further provided with an outwardly directed corner 504 to prevent illuminating The adhesion of the diode 32 to the substrate 31 is 099103138. Form No. A0101 Page 10 / Total 32 Page 0992005904-0 201128133 In the process, a small amount of solder may appear on the periphery of the LED 32 to affect each lens 50. The accommodating groove 503 has the consistency of the set position of the bottom cover. In addition, a groove 506 is respectively disposed on the left and right sides (γ-axis) edges of the bottom of the lens 50, and when the lens 50 is located on the light-emitting diode 32, the glue can be dispensed in the two holes 506. The lens 5 is fixed to the substrate μ. [0024] Ο Ο When the light of the illuminating wafer 321 is uniformly concentrated at any incident angle through the light incident surface 505 of the top of the groove, it is incident into the lens 50, and then passes through any incident angle of the lens 5〇 (FIG. 4). And the angle α in FIG. 5 passes through any of the expansion surfaces, and the light is concentrated by a refraction angle larger than the incident angle α (as shown in FIG. 4 and FIG. 5). The lens 5 has a characteristic of h/f > l in the direction of the fork axis, so that it has a convergence effect of light. When the h/f value of the lens 5 is increased, the effect of collecting light is reluctant, but the lens 5 is also increased. The light loss of 〇; and because the lens 50 has a h/g value in the Y-axis direction between 1 and h/f (i.e., i<h/g<h/f), the convergence of light The amplitude is low, so that the front and rear sides (X-axis direction) of the light-emitting diode lamp 1 are far narrower than the left-right side (Y-axis direction), and the light distribution requirement is that the lens 5 of the embodiment is suitable for the light-emitting diode. The substrate 31 in the lamp 1 is provided with a closely arranged adhesive-type light-emitting diode 32, and in this case, the flat-shaped illumination space 24 of the light-emitting diode lamp 1 is disposed. FIG. 6 is a perspective view showing one lens of the second embodiment of the light-emitting diode lamp 1 of the present invention, and FIG. 7 is a lens 51 mounted on the substrate in FIG. FIG. 8 is a cross-sectional view and an optical characteristic diagram of the lens 51 mounted on the substrate 31 in the left-right (Y-axis) direction of the lamp housing 2; FIG. The difference from the first embodiment is that the ellipse of the lens 51 is 099103138. Form number A0101 page 11/32 page 0992005904-0 201128133 The shape bottom surface 511 center (〇 point) is higher than the center of the ellipsoid (〇 point) to Forming a short flat load-bearing ellipsoid, the light emitted by the light-emitting surface 512 still satisfies the light-converging function of the first embodiment, and only the light in the direction of the x-axis has only a small amplitude convergence; the other difference is that the light enters the light. The surface 515 is a large curved surface completely formed on the edge of the rectangular groove toward the lens 51, such as a spherical surface or an ellipsoidal surface, instead of the first embodiment being disposed at the center of the rectangular groove toward the lens 50. Spherical light entrance surface 505, the above difference The present embodiment can effectively eliminate the light interference between the edge of the rectangular receiving groove 513 and the light incident surface 515, and the aspect ratio of the boundary of the light incident surface 515 is matched with the receiving groove 513 along the X axis. The rectangular direction of the x-axis is a relatively large spherical arc surface in the X-axis direction, which can provide a large convergence function for a large amount of light in this direction. The edge of the receiving groove 513 is also provided with an outwardly directed corner 514. In addition, in order to further converge the light in the X-axis direction and effectively utilize the light having a large illuminating angle, the lens 51 forms two symmetrical cut surfaces 517' on both sides of the Υ0Ζ plane by defining the cut surface 5176. The cut angle 7 makes the incident angle 0 of the light emitted from the light-emitting chip 321 and the cut surface 517 equal to a critical value. :: r .. | Total reflection of the angle 'The critical angle can be obtained by the relationship 0 c = arcSin (n2 / ni) Obtained, wherein ~ and % are the refractive indices of the lens 51 and air respectively, and the higher the refractive index of the material of the display lens 51, the smaller the critical angle; for example, the refraction of a lens made of PMMA (polymethyl methacrylate) The ratio is 匕49, and the critical angle is 42°; the refractive index of the lens 51 made of PC (polycarbonate polycarbonate) is 1.59, the boundary angle is 39; the refractive index of the water lens is 1 33, and the critical angle is 48.6. The refractive index of diamond is 2.24, and the critical angle is 099103138. Form No. A0101 Page 12 / Total 32 Pages 0992005904-0 201128133 ^ The 出 大于 is greater than the total reflection condition to make the exit pupil [0027] In the case of no loss of light, the light is completely reflected back for further convergence in a pattern in which the angle of incidence of the person is equal to the angle of reflection as shown in Fig. 7; again, the angle of cut 7 is cut at the lens 51, and the position of the head is cut. It should be ensured that light rays exiting through the apex 518 can reach the bottom edge 212' of the card 22 to reduce the occurrence of ineffective light illumination of the sign 22 in the area below the bottom edge 212 of the sign 22 and will be directed below the apex 518. The invalid light is converted into a operative light by the total reflection generated by the cut surface, so that the invalid light that is originally directed below the bottom edge 212 of the sign 22 is reflected to the bottom edge 212 of the sign 2 2 to become an indication. The effective illumination of the card 2 2 illumination. The cut angle τ of the cut surface 517 is related to the angle between the light incident from the light source 515 entering the lens 51 and the z-axis and the material of the lens 51. For example, the angle between the light incident surface 515 and the PMMA lens 51 is incident. 0 is 60 respectively. And 90.
G ’為破保上述光線射向該切面517後均能發生全反射，由 上述光線的幾何關係可得到切角r需小於（90- 0 ) + (90-0C)，相當於7分別小於78°及小於48。，對於同一夹角 必而言，透鏡51材料的折射率越高切角r越大。為使原 射向該切面517範圍的無效出光藉由該切面51 7所產生的 全反射而轉為有效出光，以達到更高的光能利用率，並 考慮透鏡51使用不同的材質和不同光源的較大適用性， 切面517的切角τ之較佳範圍係介於30°至75° ;再則， 若不採取上述高效率的全反射切角T以匯聚出光，亦可 在所述發生全反射的切角7範圍以外的透鏡51的切面517 上塗佈反光介質達到較佳的反射效果。 099103138 表單編號A0101 第13頁/共32頁 0992005904-0 201128133 [0028] 本實施例適用於在發光二極體燈具1中的基板31上設置乾 疏排列的黏貼型發光二極體32，在此狀況下該透鏡51仍 滿足：l<h/g<h/f，但該透鏡51的橢圓形底面中心 (〇點）高於所述橢球體中心（〇點），以形成一短扁形的截 斷擴球體’當發光晶片321的光線以任一入射角通過所述 出光面512上任一處時，仍以一大於該入射角的导斤射角型 式將所述出光作較小幅度的匯聚，因此可使出光作較大 幅度的擴散；另將該短扁形的截斷橢球體透鏡51用於較 密排列的黏貼型發光二極體32，可使相鄰發光二極體模 組3 0間發揮較佳的混光而使發光二極體燈具1的扁平狀照 明空間24中有較佳的亮度均勻性與光能利用性。 [0029] 圖9係本發明透鏡52的第三實施例中之一立體外觀圖，本 實施例所示透鏡52是由共Z軸的第一部分528與第二部分 529相拼合而成的一體成形件’第一部分528位於透鏡52 的底端’第二部分529位於第一部分528之上，其中該第 一部分528是由一較大的球體或橢球體沿χογ面切除下方 的一部分所形成，該第二部分529是由一較小的球體或橢 球體切除下方的一部分所形成，且在第一部分528及第二 部分529的接合處有相同或相近的接合面，即上述組合透 鏡52的出光面可由第一實施例衍生，以形成一類似於所 述長扁形的截斷球體或截斷橢球體，使該透鏡52的底面 521的中心〇低於所述橢球體中心（〇點）。又，該透鏡52 的第一部分528之X軸方向兩側對稱於Z軸亦可設置與第二 實施例中相似的切面527，並使設於底面521中心〇點的矩 •形容置槽523套設在表面黏貼型發光二極體32的外周面， 099103138 表單編號A0101 第14頁/共32頁 0992005904-0 201128133 [0030] Ο ο [0031] 使由發光晶片321射出大出光角的光線在該切面527產生 全反射’並在第二部分529形成光線的匯聚，達到與第一 實施例及第二實施例相似的均勻亮度之爲平配光效果。 圖10係本發明透鏡53的第四實施例中之一立體外觀圖， 本實施例所示透鏡53是由共Ζ軸等高的一部分球體與一部 分橢球體相拼合而成的一體成形件，其中該部分球體由 一較大的球體沿ΧΟΥ面切除下方的一部分所形成並形成於 該透鏡53的Υ轴方向兩側，該部分橢球體由一較小的橢球 體沿ΧΟΥ面切除下方的一部分所形成並形成於該透鏡53的 ........... . .....：：：.： · .. . X軸方向兩側’即上述組合透鏡5 3的出光淪5 3 2包括形成 於Υ軸方向兩側的部分球面539、形成於X軸方向兩側的部 分橢球面538及連接於該部分球面539與部分橢球面538 之間的接合面530，該部分球面539與該部分橢球面538 的底部形成一共同的底面531，該部分球面539沿Υ軸方向 凸出於該部分橢球面538。上述組合透鏡53可由第二實施 例衍生’使該透鏡53的底面531中心〇點高於所述橢球體 中心（〇點）’以形成一類似於所述短扁形的截斷搞球體， 達到與第二實施例相似的均勻亮度之扁平配光效果。 上述各實施例中，為使透鏡50、51、52、53套設在黏貼 型發光二極體32上達到在應急發光二極體燈具1的扁平狀 照明空間24中有較佳的亮度均勻性，並考慮透鏡5〇、51 、52、53使用不同材質時對出光吸收損耗的差異，本實 施例中h/f值的較佳範圍係介於1至10之間，且滿足 特性。 [0032] 099103138 由上述的實施方式已進一步清楚說明本發明的技術特徵 表單編號A0I01 第15頁/共32頁 0992005904-0 201128133 及達成之功效，包括： [0033] 1)本發明提供一種能使用表面黏貼型發光二極體32並大 幅改善需滿足特殊光學要求的發光二極體燈具1，藉由二 次光學的結構設計，使表面黏貼型發光二極體燈具1的出 光經由該透鏡5 0、51、5 2、5 3射出後以逐步漸進的匯聚 方式，滿足X軸方向的出光有較大的匯聚幅度，Y軸方向 的出光有相對較小的匯聚幅度且使相鄰發光體的出光邊 界因部分重疊而獲得較佳的混光效果，達到改善習知消 防應急發光二極體燈具1的缺失，並使扁平狀照明空間24 的指示牌22顯示均勻的亮度。 [0034] 2 )本發明提供一種能提升消防應急安全性的發光二極體 燈具1，藉由透鏡50、51 ' 52、53的導光設計以充分利 用發光二極體32的光通量並有效降低光損失，使表面黏 貼型發光二極體32的出光改變為符合消防應急發光二極 體燈具1的扁平型態，在停電應急時提供更長的指示時間 及顯示更亮且均勻的指示牌22訊息，達到顯著提升消防 應急逃生的安全性。 [0035] 3)本發明提供一種具有節電與經濟效益的發光二極體燈 具1，藉由透鏡50、51、52、53與表面黏貼發光二極體 32的結合，不但因光效高與出光的充分利用而可精簡發 光二極體32的數量及降低發光二極體燈具1的耗能，並在 大量採用且正常供電的不間斷點亮期間發揮穩定出光及 聚沙成塔的節電省錢效益，亦由於表面黏貼型發光二極 體32的長壽命以及與電路板42匹配的量產性，可發揮簡 化製程工藝、提升量產效率及降低成本之經濟效益。 099103138 表單編號A0101 第16頁/共32頁 0992005904-0 201128133 [0036] 綜上所述，本發明確已符合發明專利之要件，遂依法提 出專利申請。惟，以上所述者僅為本發明之較佳實施例 ，自不能以此限制本案之申請專利範圍。舉凡熟悉本案 技藝之人士援依本發明之精神所作之等效修飾或變化， 皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 [0037] [0038] [0039] [0040] [0041] [0042] ❹ [0043] [0044] [0045] [0046] 圖1係本發明發光二極體燈具第一實施例之立體示意圖。 圖2係圖1中拆去正面指示牌以顯示内部配置之立體示意 圖。 圖3係圖2中發光二極體模組的透鏡之一立體外觀圖。 圖4係圖1中發光二極體模組安裝於基板且沿X軸方向的剖 面示意圖。 圖5係圖1中發光二極體模組安裝於基板且沿Y軸方向的剖 面示意圖。 圖6係本發明中透鏡之第二貪施麟芩立體示意圖。 圖7係圖6中透鏡安裝於基政方向之剖面示意圖。 圖8係圖6中透鏡安裝於基板且沿Υ軸方向之剖面示意圖。 圖9係本發明中透鏡之第三實施例之立體示意圖。 圖10係本發明中透鏡之第四實施例之立體示意圖。 【主要元件符號說明】 [0047] 1 :發光二極體燈具 [0048] 2 :燈殼 099103138 表單編號 Α0101 第 17 頁/共 32 頁 0992005904-0 201128133 [0049] 21 :框架 [0050] 210 :線孔 [0051] 2 1 1 :狀態燈 [0052] 212 :底緣 [0053] 213 :線槽 [0054] 214 :電線 [0055] 2 2 :指示牌 [0056] 221 :標示 [0057] 222 :不透光區 [0058] 23 :隔板 [0059] 231 :反光面 [0060] 24 :照明空間 [0061] 25 :背板 [0062] 3 :光源部 [0063] 30 :發光二極體模組 [0064] 31 :基板 [0065] 32 :發光二極體 [0066] 321 :發光晶片 [0067] 4 :電氣部 099103138 表單編號A0101 第18頁/共32頁 0992005904-0 201128133 [0068] 41 ： 蓄電池 [0069] 42 ： 電路板 [0070] 50 > 51 > 52 53 :透鏡 [0071] 501 ' 511 ' 521、 531 :底 [0072] 502 ' 512、 532 ： 出光面 [0073] 503 、513、 523 ： 容置槽 [0074] 504 、514 : 導 角 [0075] 505 ' 515 ： 入 光面 [0076] 506 > 516 ： 凹 槽 [0077] 517 、527 : 切 面 [0078] 518 :頂點 ❹ 099103138 表單編號A0101 第19頁/共32頁 0992005904-0G' can be totally reflected after the above-mentioned light is directed to the slice 517. From the geometric relationship of the above light, the angle of cut r can be less than (90- 0) + (90-0C), which is equivalent to less than 78 respectively. ° and less than 48. For the same angle, the higher the refractive index of the material of the lens 51, the larger the corner angle r. In order to make the original light to the range of the cut surface 517, the ineffective light is converted into effective light by the total reflection generated by the cut surface 51 7 to achieve higher light energy utilization, and the lens 51 is considered to use different materials and different light sources. For a greater applicability, the preferred range of the tangent angle τ of the cut surface 517 is between 30° and 75°; in addition, if the high-efficiency total reflection cut angle T is not taken to concentrate the light, the occurrence may also occur. The reflective medium is coated on the cut surface 517 of the lens 51 outside the range of the total reflection cut angle 7 to achieve a better reflection effect. 099103138 Form No. A0101 Page 13 / Total 32 Pages 0992005904-0 201128133 [0028] This embodiment is suitable for providing a dry-disposed adhesive type LED 32 on the substrate 31 in the light-emitting diode lamp 1. In this case, the lens 51 still satisfies: l <h/g<h/f, but the elliptical bottom surface center (defect point) of the lens 51 is higher than the center of the ellipsoid (defect point) to form a short flat truncation. Expanding sphere 'When the light of the illuminating wafer 321 passes through any of the light exiting surfaces 512 at any incident angle, the light is still concentrated at a smaller amplitude than the guiding angle of the incident angle. The light can be diffused for a large extent; the short flattened ellipsoid lens 51 is used for the densely arranged adhesive light-emitting diode 32, so that the adjacent light-emitting diode modules can be compared. The good light mixing allows for better brightness uniformity and light energy utilization in the flat illumination space 24 of the light-emitting diode lamp 1. 9 is a perspective view showing a third embodiment of the lens 52 of the present invention. The lens 52 shown in this embodiment is integrally formed by combining a first portion 528 and a second portion 529 of the common Z-axis. The second portion 529 of the first portion 528 is located above the first portion 528 of the lens 52, wherein the first portion 528 is formed by cutting a portion of the lower sphere along the χογ surface by a larger sphere or ellipsoid. The two portions 529 are formed by cutting a lower portion of a smaller sphere or ellipsoid, and have the same or similar joint faces at the joint of the first portion 528 and the second portion 529, that is, the light exit surface of the combined lens 52 can be The first embodiment is derivatized to form a truncated sphere or truncated ellipsoid similar to the long flat shape such that the center 〇 of the bottom surface 521 of the lens 52 is lower than the center of the ellipsoid (defect). Moreover, the two sides of the first portion 528 of the lens 52 in the X-axis direction are symmetric with respect to the Z-axis, and a cutting surface 527 similar to that in the second embodiment may be provided, and a rectangular shape-receiving groove 523 provided at the center of the bottom surface 521 is provided. It is provided on the outer peripheral surface of the surface-adhesive light-emitting diode 32, 099103138 Form No. A0101, page 14/32, 0992005904-0, 201128133 [0030] 003 ο [0031] Light rays emitted from the light-emitting wafer 321 at a large exit angle are The cut surface 527 produces total reflection 'and forms a convergence of light at the second portion 529 to achieve a uniform light distribution similar to the first embodiment and the second embodiment. FIG. 10 is a perspective view showing a third embodiment of the lens 53 of the present invention. The lens 53 shown in this embodiment is an integrally formed piece formed by combining a part of a sphere having a common axis and a part of an ellipsoid. The partial sphere is formed by a larger sphere along a portion of the lower surface of the sacral surface and formed on both sides of the lens 53 in the yaw axis direction. The partial ellipsoid is cut by a smaller ellipsoid along the sacral surface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 includes a partial spherical surface 539 formed on both sides in the z-axis direction, a partial ellipsoidal surface 538 formed on both sides in the X-axis direction, and a joint surface 530 connected between the partial spherical surface 539 and a partial ellipsoidal surface 538, the partial spherical surface 539 A common bottom surface 531 is formed with the bottom of the partial ellipsoidal surface 538, and the partial spherical surface 539 protrudes from the partial ellipsoidal surface 538 along the z-axis direction. The above combined lens 53 can be derived from the second embodiment 'the center of the bottom surface 531 of the lens 53 is higher than the center of the ellipsoid (〇 point)' to form a truncated sphere similar to the short flat shape, reaching A flat light distribution effect of uniform brightness similar to the second embodiment. In the above embodiments, in order to make the lenses 50, 51, 52, 53 be placed on the adhesive type LEDs 32, the brightness uniformity in the flat illumination space 24 of the emergency light-emitting diode lamp 1 is better. Considering the difference in light absorption loss when the lenses 5〇, 51, 52, and 53 are made of different materials, the preferred range of the h/f value in the present embodiment is between 1 and 10, and the characteristics are satisfied. [0032] 099103138 The technical feature form number A0I01 of the present invention, page 15 of 32 pages 0992005904-0 201128133 and the achieved effects are further clearly illustrated by the above-described embodiments, including: [0033] The present invention provides a usable use The surface-adhesive light-emitting diode 32 greatly improves the light-emitting diode lamp 1 which needs to meet special optical requirements, and the light of the surface-adhesive light-emitting diode lamp 1 passes through the lens 50 by the secondary optical structure design. , 51, 5 2, 5 3 After the injection, the gradual and progressive convergence mode, the light emission in the X-axis direction has a larger convergence amplitude, and the light emission in the Y-axis direction has a relatively small convergence amplitude and the light emission of the adjacent illuminant The boundary is partially overlapped to obtain a better light mixing effect, which improves the lack of the conventional fire emergency light-emitting diode lamp 1 and causes the sign 22 of the flat lighting space 24 to display uniform brightness. [0034] 2) The present invention provides a light-emitting diode lamp 1 capable of improving fire safety and emergency protection, and the light guiding design of the lenses 50, 51' 52, 53 is utilized to fully utilize the luminous flux of the light-emitting diode 32 and effectively reduce The light loss changes the light output of the surface-adhesive light-emitting diode 32 to conform to the flat state of the fire emergency light-emitting diode lamp 1, providing a longer indication time and displaying a brighter and more uniform sign in the event of a power failure emergency. The message achieves a significant increase in the safety of fire emergency escapes. [0035] 3) The present invention provides a light-emitting diode lamp 1 having power saving and economic benefits, and the combination of the lenses 50, 51, 52, 53 and the surface-attached light-emitting diode 32 is not only due to high light efficiency and light output. The full utilization can simplify the number of the light-emitting diodes 32 and reduce the energy consumption of the light-emitting diode lamp 1, and realize the power saving and economy-saving benefits of stable light-emitting and sand-splitting into the tower during the uninterrupted lighting of a large number of used and normal power supply. Due to the long life of the surface-adhesive LEDs 32 and the mass production matched with the circuit board 42, the economic benefits of simplifying the process, improving the mass production efficiency, and reducing the cost can be achieved. 099103138 Form No. A0101 Page 16 of 32 0992005904-0 201128133 [0036] In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by those skilled in the art to the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0046] FIG. 1 is a first embodiment of a light-emitting diode lamp of the present invention. [0046] FIG. A three-dimensional diagram of an example. Figure 2 is a perspective view showing the internal configuration of Figure 1 with the front indicator removed. 3 is a perspective view of a lens of the LED module of FIG. 2. 4 is a cross-sectional view showing the light emitting diode module of FIG. 1 mounted on a substrate and along the X-axis direction. Fig. 5 is a cross-sectional view showing the light emitting diode module of Fig. 1 mounted on a substrate and in the Y-axis direction. Fig. 6 is a perspective view showing the second greedy lining of the lens of the present invention. Figure 7 is a schematic cross-sectional view showing the lens of Figure 6 mounted in the basic direction. FIG. 8 is a schematic cross-sectional view showing the lens of FIG. 6 mounted on the substrate and along the z-axis direction. Figure 9 is a perspective view showing a third embodiment of the lens of the present invention. Figure 10 is a perspective view showing a fourth embodiment of the lens of the present invention. [Main component symbol description] [0047] 1 : Light-emitting diode lamp [0048] 2 : Lamp housing 099103138 Form number Α 0101 Page 17 / Total 32 page 0992005904-0 201128133 [0049] 21 : Frame [0050] 210 : Line Hole [0051] 2 1 1 : Status light [0052] 212: Bottom edge [0053] 213: Wire trough [0054] 214: Wire [0055] 2 2: Signage [0056] 221: Mark [0057] 222: No Light transmissive area [0058] 23 : Separator [0059] 231 : Reflective surface [0060] 24 : Illumination space [0061] 25 : Back plate [0062] 3 : Light source part [0063] 30 : Light-emitting diode module [ 0064] 31 : substrate [0065] 32 : light emitting diode [0066] 321 : light emitting chip [0067] 4 : electrical part 099103138 form number A0101 page 18 / total 32 page 0992005904-0 201128133 [0068] 41 : battery [ 0069] 42 : circuit board [0070] 50 > 51 > 52 53 : lens [0071] 501 ' 511 ' 521, 531 : bottom [0072] 502 ' 512, 532 : light-emitting surface [0073] 503, 513, 523 : accommodating groove [0074] 504, 514: lead angle [0075] 505 ' 515 : light incident surface [0076] 506 > 516 : groove [0077] 517 , 527 : cut surface [0078] 518 : Form Number A0101 point ❹ 099103138 Page 19 / Total 32 0992005904-0