TWI373860B - - Google Patents

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TWI373860B
TWI373860B TW97146330A TW97146330A TWI373860B TW I373860 B TWI373860 B TW I373860B TW 97146330 A TW97146330 A TW 97146330A TW 97146330 A TW97146330 A TW 97146330A TW I373860 B TWI373860 B TW I373860B
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axisymmetric
package structure
formula
light
tan
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TW97146330A
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TW201021245A (en
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Automotive Res & Testing Ct
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Description

1373860 九、發明說明: 【發明所屬之技術領域】 本發明係關於-種LED封裝結構,特別是關於一 燈之非軸對稱LED封裝結構。 【先前技術】1373860 IX. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to an LED package structure, and more particularly to a non-axisymmetric LED package structure for a lamp. [Prior Art]

種可應用於車輪用LED 由於LED具有體積小、壽命長、省電及耐用等優點,近年來以逐漸庫 用於日常生活中。最常見的應用即為車用燈的設計。對於_般封裝完成之 LED來說’其發射之光源的光源場形角較大,以致於整體直接投射的光度不 足,將纽滿足法規規定之相燈的亮度。因此,將藉由二次光學設計來 改善上述之缺點’第-騎示為習知LED封裝結構剖視圖如_示一 封裝本體10係Μ設-凹槽12 ’此凹槽12觸係、為—拋物反射面14 ; 一 LED發光元件16設置於封裝本體10上相對凹槽12所在之位置,此⑽發 光7L件16發出之光源將透過抛物反射面14以增強光源的细效率;一封 裝移體18覆蓋LED發光元件16並填滿此凹槽12; 一透鏡2〇係設置於封裝 本體10上,且位於LED發光元件16發光路徑上,此透鏡2〇具有聚光特性 並相搭配於拋物反射面14之設計,使LED發光元件16發出之光源於透過 拋物反射面14反射後,再經由透鏡20發生集中偏折,進而達到提高照度 的效果;另外,封裝本體10與LED發光元件16藉由多條導線22電性連接。 然而凹槽12周圍拋物反射面14的設計雖有利於光源的利用效率,但 由於光源係從拋物反射面14的内焦點射出,再經反射後,會以平行光的方 式射出,如此將增加透鏡20設計上的困擾;再者,為了使led發光元件16 發出之光源能符合法規之光形’將會於封裝膠體18上增設遮片(圖中未示) 5 1373860 的設計與透鏡2G相結合,此遮片將會增加封裝時之困難度,且亦將限制Μ 發光元件16赴的光形紙此外,⑽發光元件i6發出之統必然有部 分的散雜緣無法猶鏡2〇 «至正財,如此成部分統的損失而 導致亮度下降^ 有鑑於此,本發明係針對上述該些困擾,同時結合光學結構設計與咖 封裝技術,提出一種非轴對稱LED封裝結構。 【發明内容】LEDs for wheel applications Because LEDs have the advantages of small size, long life, power saving and durability, they have been gradually used in daily life in recent years. The most common application is the design of automotive lights. For the LEDs that have been packaged, the source of the source of the light source is larger, so that the overall direct projection luminosity is insufficient, and the brightness of the phase lamp is met. Therefore, the above-mentioned shortcomings will be improved by the secondary optical design. The first embodiment is a cross-sectional view of a conventional LED package structure, such as a package body 10, a recess 12' Parabolic reflecting surface 14; an LED light-emitting element 16 is disposed on the package body 10 at a position relative to the groove 12, and the light source emitted by the (10) light-emitting 7L member 16 will pass through the parabolic reflecting surface 14 to enhance the fine efficiency of the light source; 18 covers the LED light-emitting element 16 and fills the recess 12; a lens 2 is disposed on the package body 10 and located on the light-emitting path of the LED light-emitting element 16, the lens 2 has a condensing characteristic and is matched with a parabolic reflection The design of the surface 14 is such that the light source emitted from the LED light-emitting element 16 is reflected by the parabolic reflection surface 14 and then concentratedly deflected through the lens 20 to achieve an effect of improving illumination. In addition, the package body 10 and the LED light-emitting element 16 are used. A plurality of wires 22 are electrically connected. However, although the design of the parabolic reflecting surface 14 around the groove 12 is advantageous for the utilization efficiency of the light source, since the light source is emitted from the inner focus of the parabolic reflecting surface 14, and then reflected, it will be emitted in the form of parallel light, thus increasing the lens. 20 design troubles; in addition, in order to make the light source of the LED light-emitting element 16 can comply with the law of the light shape 'will be added to the encapsulation 18 (not shown) 5 1373860 design combined with the lens 2G The mask will increase the difficulty of packaging, and will also limit the light-shaped paper that the light-emitting element 16 goes to. In addition, (10) the light-emitting element i6 must have a part of the scattered edge that cannot be mirrored. In view of the above, the present invention is directed to the above-mentioned problems, and in combination with optical structure design and coffee packaging technology, a non-axisymmetric LED package structure is proposed. [Summary of the Invention]

本發明之主要目的係在提供—種雜觸LED封裝結構其不需增加 二次光學設計或加裝遮片,係、縱向曲線與橫向曲線所構成之非轴對稱 透光元件’並將LED “封裝於其中而成—非㈣稱LED封裝結構,以將 發射出之統產生符合法規職且亮度平触佈於蝴之矩形光形。 本發明之另-目的係在提供一種非轴對稱封裝結構其係將哪 晶片設置之位置於基底上做Y方向的位移,使得哪晶片發射出之光源呈 現出單邊高梯度光形。 本發明之另-目的係在提供—種非軸對稱LED封裂結構其係產生的 光源場形角較小,能大幅提升整體發光亮度。 本發明之又-目的係在提供—種非⑽稱LED _結構,其透光元件 .體成職接包f於晶片,少光源在行進中的能量祕,進而 提高光源能量的使用率》 為達到上述之目的’本發明提出之非㈣稱LED封裝結構包括一基底、 —LED晶片及一透光元件。此led 晶片設置於基底上,藉由數條金屬線與 6 1373860 第七圖為本發明之光形亮度分佈示意圖。 第八(a)圖為本發明之結構俯視圖。 第八(b)圖為本發明之結構透視圖。 第九圖為本發明之光形梯度分佈示意圖。 【主要元件符號說明】 10封裝本體 12凹槽 14拋物反射面 16 LED發光元件 20透鏡 32 LED晶片 36透光元件 38半球體 40中空折射平面 44全反射曲面 φ 18封裝膠體 22導線 30基底 34金屬線 37縱向曲線 39橫向曲線 42集光凸面 φ 46 缺口The main object of the present invention is to provide a non-axisymmetric LED package structure that does not need to add secondary optical design or add a matte, non-axisymmetric light transmissive element composed of a longitudinal curve and a lateral curve and will "LED" Packaged in it - not (d) is called the LED package structure, in order to produce a rectangular light shape that meets the regulatory requirements and the brightness is flat. The other object of the present invention is to provide a non-axisymmetric package structure. Which is to position the wafer on the substrate to make a displacement in the Y direction, so that the light source emitted by the wafer exhibits a single-sided high gradient light shape. Another object of the present invention is to provide a non-axisymmetric LED seal. The structure of the light source field angle generated by the system is small, and the overall brightness of the light is greatly improved. The present invention is also aimed at providing a non-(10) LED _ structure, and the light-transmitting element is formed into a package. The energy source of the light source is less in progress, thereby increasing the utilization rate of the light source energy. To achieve the above purpose, the non-fourth LED package structure proposed by the present invention comprises a substrate, an LED chip and a light transmitting component. It is disposed on the substrate, and the seventh figure is a schematic diagram of the light-shaped brightness distribution of the present invention by a plurality of metal wires and 6 1373860. The eighth (a) is a top view of the structure of the present invention. The eighth (b) is a view of the present invention. The ninth figure is a schematic diagram of the light-shaped gradient distribution of the present invention. [Main component symbol description] 10 package body 12 groove 14 parabolic reflection surface 16 LED light-emitting element 20 lens 32 LED chip 36 light-transmitting element 38 hemisphere 40 Hollow refracting plane 44 total reflection surface φ 18 encapsulant colloid 22 wire 30 substrate 34 metal wire 37 longitudinal curve 39 lateral curve 42 collecting convex surface φ 46 notch

Claims (1)

叫正替換頁 1373860 十、申請專利範園: 卜一種非軸對稱le:d封裝結構,包括: —基底; -LED晶片,係設置於該基底上,且提供一光源;以及 -透光元件,係繼該基底上咐於請W,該 轴對稱之—術,™__為—有= 折射平面,於該令空折射平面中央位於⑽晶片之位置開設一缺口, ^於該缺口的底部設置-絲6面,其中射空折射平面與該全反射 曲面係滿足下列條件: 公式(1): 公式(2): Θ sin-1 'sin ⑻、 l n ) ( 90 + ^ + tan'1 V 2 公式(3) : g = tan_l tan' U-试) ,(^1 (少丨-甙) Χχ\-χίί). 公式(4) : θ3 = θ,θ2 公式(5) : X丨=xw 公式(6) : (似 X tan (θ3) - X, X tan (9〇 _ θ,、+ — :以及 公式(7) : 1 tan(^)^tan(9O-02) 公式(8):州=(從丨-仰)以如(03) +少《 中’(X,y)與(XI,yi)分別為該全反射曲面上任二點座標,(xh 沾)及(成作)分別為該LED晶片上任意二點座標,(xu,yu 12 1373860 101年8月1〇曰修正替換頁 ”(XU·,yUl)為该中空折射平面上任意二兩點之座標;㊀r為入射 射工折射平面之入射角,θ|為折射出該中空折射平面之折射角η 為該透光元件之介質密度,θ為由(χι,y〇延伸與該全反射曲面形 成之切線與由(Xl,y,)延伸之水平線所形成之夾角,02為(成yfl) 及(Xf2’ yf2)分別與(X|,yi)組成之連線與水平線形成之二夹角 的角度產’ 03為(xu,yu)與(XU|,yu|)二點組成之連線與水平 線所形成的夹角;該全反射曲面係滿足該公式⑸與該公式⑹且 該中空折射平面係滿足該公式⑺與該公式⑻,經由以上公式⑴至 a式(8)。十才將可確保5玄晶片所提供之光源於入射至該全反射曲 面上時將皆全反射至該中空折射平面上。 2、 如申請專利範圍第i項所述之非軸對稱咖封裝結構,其中該半球體係 由複數縱向轉純數橫向㈣所構成,域半球齡為—半擴圓球 體。 3、 如申請專利範圍第2項所述之非軸對稱封裝結構,其中該複數縱向 曲線與該複數橫向曲線之曲率各自不同。 4、 如申請專利範圍第2項所述之非軸對稱哪封褒結構,其中該複數縱向 曲線與該複數橫向曲線之長度係各自不同。 5、 如申請專利範圍第2項所述之非軸對稱⑽封裝結構,其中該複數縱向 曲線與該複雜向崎所控制之絲分布係各自不同。 6、 如申請專利範B第丨項所述之非軸對稱LED封襄結構,其中該光源透過 5亥透光7L件所產生之光形為矩形,且亮度平均分佈於兩側。 13 \ , . 101年8月10曰修正替換頁 、如申請專利觸丨項所述之非軸對稱LED封裝結構,其中 係為一折射聚光面。 I如申料利範圍第i項所述之非轴對稱封裝結構其中該透光元件 係為%氧樹脂、壓克力材質或玻璃材質。 9如申睛專利範圍第丨項所述之非軸對稱LED封裝結構其中該⑽晶片 上係將均勻舖灑一螢光粉層。 10、如申睛專利範圍第i項所述之非軸對稱·封裝結構其中該·晶 片係於相對該絲Μ的位置於該基底上往γ方向偏移設置使該光 源透過透光元件呈現單邊高梯度光形。 η、如申請專利範圍第ίο項所述之非軸對稱LED崎結構,其中該晶 片面積大致為lmnm咖’該γ方向偏移設置之偏移量約為&amp; 3〜〇. 5刪。 12、如申請專利範圍第i項所述之非軸對稱㈣封裝結構,更包括複數條 金屬線’係設置於該透光元件内,且電性連接該⑽晶片與該基底。Calling a replacement page 1373860 X. Patent application: A non-axisymmetric le:d package structure comprising: a substrate; an LED chip disposed on the substrate and providing a light source; and a light transmissive element, Following the substrate, the axis is symmetric, and the TM__ is - having a refractive plane, and a gap is formed at the center of the (10) wafer at the center of the empty refractive plane, and is disposed at the bottom of the gap. - 6 sides of the wire, wherein the jet refracting plane and the total reflection surface satisfy the following conditions: Equation (1): Formula (2): Θ sin-1 'sin (8), ln ) ( 90 + ^ + tan'1 V 2 Equation (3): g = tan_l tan' U-test), (^1 (less 丨-甙) Χχ\-χίί). Equation (4): θ3 = θ, θ2 Equation (5): X丨=xw Formula (6) : (like X tan (θ3) - X, X tan (9〇_ θ, , + — : and formula (7) : 1 tan(^)^tan(9O-02) Equation (8): State = (from 丨-仰) to (03) + less "中" (X, y) and (XI, yi) are respectively the two-point coordinates on the total reflection surface, (xh dip) and (production) Any two-point coordinates on the LED chip, (xu Yu 12 1373860 August 1st, 1st, revised replacement page" (XU·, yUl) is the coordinate of any two points on the hollow refractive plane; one r is the incident angle of the incident beam's refractive plane, and θ| is the reflection The refraction angle η of the hollow refractive plane is the medium density of the light transmissive element, and θ is the angle formed by the tangential line formed by the extension of the χι, y〇 and the total reflection surface and the horizontal line extended by (Xl, y,), 02 The angle between the two angles formed by the line formed by (yf) and (Xf2'yf2) and (X|, yi) and the horizontal line is '03 is (xu, yu) and (XU|, yu|) The angle formed by the line connecting the point and the horizontal line; the total reflection surface satisfies the formula (5) and the formula (6) and the hollow refractive plane satisfies the formula (7) and the formula (8), via the above formula (1) to the formula (8) The tenth will ensure that the light source provided by the 5th wafer will be totally reflected onto the hollow refractive plane when incident on the total reflection surface. 2. Non-axisymmetric coffee as described in claim i a package structure in which the hemispherical system is converted from a plurality of longitudinal to a pure horizontal (four) The domain hemisphere is a semi-expanded sphere. 3. The non-axisymmetric package structure as described in claim 2, wherein the complex longitudinal curve and the complex transverse curve have different curvatures. The non-axisymmetric structure of the second aspect of the invention, wherein the complex longitudinal curve and the length of the complex transverse curve are different from each other. 5. The non-axisymmetric (10) package structure of claim 2, wherein the complex longitudinal curve is different from the complex wire-controlled wire distribution system. 6. The non-axisymmetric LED package structure as claimed in claim 4, wherein the light source generated by the light source passing through the 7L light is rectangular, and the brightness is evenly distributed on both sides. 13 \ , . August 10, 2010 Correction replacement page, such as the non-axisymmetric LED package structure described in the patent application, which is a refractive concentrating surface. I. The non-axisymmetric package structure as described in claim ii, wherein the light transmissive element is made of % oxygen resin, acrylic material or glass material. 9 A non-axisymmetric LED package structure as described in claim </ RTI> wherein the (10) wafer is uniformly coated with a phosphor layer. 10. The non-axisymmetric package structure according to claim i, wherein the wafer is offset from the substrate by a position in the γ direction relative to the wire so that the light source passes through the light transmitting component to present a single Edge height gradient light shape. η. The non-axisymmetric LED sacrificial structure as described in claim </ RTI> wherein the area of the wafer is approximately lmnm. The offset of the gamma-direction offset is about &amp; 3~〇. 12. The non-axisymmetric (four) package structure of claim i, further comprising a plurality of metal wires disposed in the light transmissive element and electrically connecting the (10) wafer to the substrate.
TW97146330A 2008-11-28 2008-11-28 Non-axisymmetric LED package structure TW201021245A (en)

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