M364866 光源侧光學面10 照明側光學面20 外凸22 外圍部30 光學透鏡1 中心軸11 内凹21 中心轴23 八、新型說明 【新型所屬之技術領域】 . 本創作係有關一種光學透鏡及其照明裝置，尤指一種 利用自由曲面公式（surface definition of free form)設計 該光學透鏡之光源側光學面及照明側光學面，以使LED 光源能透過該光學透鏡能產生均勻照度且能滿足特殊照 明光形等要求者。 【先前技術】 利用發光二極體（light-emitting diode，簡稱 LED) 作為照明裝置的光源已是習知技術，且應用領域上已相當 廣泛如手電筒、檯燈、車燈如車前燈及車尾燈組、路燈、 • 或其他電子產品之輔助照明裝置如照相機閃光燈、掃描照 明光源裝置等，其大都是使用複數個發光二極體（led) 以形成一陣列而作為光源，而上述LED陣列係指將複數 ' 個LED依燈光照明裝置的需要而排列成某一模樣 ' (Pattern) ’如線性排列、矩陣排列、同心圓形排列等但 不限制；而一發光二極體（LED)基本上包含：一基座用 以承载LED晶粒並使LED晶粒外接電源、一或數個LED 晶粒用以在導電後發光、及一層或多層由透光性樹脂或玻 璃材料成型之罩蓋式透鏡體（cover lens)’ 一般通稱為led 3 M364866 之第一透鏡（first lens)，用以包覆在上述基座與led晶 粒之外部而封裝成一 LED組件（LED assembly，在本創作 中簡稱LED )，使用時，LED晶片發出之光線經過第一透 鏡（first lens)再投射向外。 在LED之應用上，不同用途的照明裝置各有不同的 使用條件，以路燈為例說明，路燈一般要求在照射區域（即 路面）上能達成照度均勻、足夠且照射區域之範圍最好能 涵蓋一長（即長軸方向，平行道路走向）、寬（即短軸方 • 向，垂直道路走向）比約3 : 1的矩形區域，因路燈約間 隔15〜30公尺，路燈高度約6〜20公尺；而為使LED光 源或數個LED所形成之LED陣列光源能符合上述需求， 各LED除了在封裝結構上已具有基本的第一透鏡（first lens)外，在LED之光投射方向即LED之前方一般皆再 配置一第二透鏡（second lens )，藉以提昇LED光源的使 用效率，如增加有效照度（照明單位：lux=流明lm/m2 ) 及調整LED光源的有效照射區域及照度均勾性。然，傳 • 統的路燈如高壓鈉燈，雖然燈泡本身的發光效率較高，但 其燈具的有效照度卻偏低，主要因為所產生的光形（照射 區域）並無法有效覆蓋所需之照明區域而造成浪費。 因此，在LED光源的應用技術中如路燈，發展一種 能產生近矩形的光形的強度分佈（rectangular light distribution patterns)，且有效照度高又均勻的光學透鏡（第 二透鏡），確實有其需要性。 【新型内容】 本創作主要目的乃在於提供一種光學透鏡及其照明 4 M364866 裝置，其係利用自由曲面公式（surface definiti〇n of free form)設計該光學透鏡之光源侧光學面及照明侧光學面， 其中，利用歪像公式（Anamorphic surface formula)使 光源側光學面設計形成一軸對稱，且延著長軸剖向為内凹 形狀，並利用複曲面公式（Toric surface formula)，使 照明側光學面設計形成一軸對稱，且延著長軸剖向為中間 内凹兩側外凸之Μ形狀，使該光學透鏡在不同軸向上具 •有不同曲率，以致當該光學透鏡搭配至少一 LED光源使 鲁 用時，不但可提南LED光源有效照度’並可達成在照射 區域中產生均勻且近矩形光形的強度分佈（rectangular distribution patterns)的使用效果，以適用於路燈、車燈或 照相閃光燈等照明使用，如路燈照明所霉，長抽方向（平 行道路走向）的長度相對於短軸方向（垂直道路走向）的 寬度，比例為3 : 1之矩形光形。 本創作再一目的乃在於提供一種光學透鏡及其照明 裝置，其係利用數個該等光學透鏡以同軸向在一外罩上形 •成一透鏡陣列或其他排列方式，供可搭配一 LED光源之 陣列或其他排列方式而構成一 LED照明農置，藉以提高 LED光源有效照度，並可達成在照射區域中產生均勻且近 *矩形光形的使用效果，以適用於路燈、車燈或照相閃光燈 - 等照明使用。 ^ 【實施方式】 為使本創作更加明確詳實，茲列舉較佳實施例並配合 下列圖示，將本創作之結構及其技術特徵詳述如後： 參考圖1-5，其分別係本創作光學透鏡一實施例之二 5 M364866 不同視角（照明侧光學面及光源側光學面之視角）立體示 意圖及其三不同侧面（上視、正視及侧視）及相關尺寸示 意圖。本創作之光學透鏡丨，係用以搭配至少一發光二極 體（LED )光源2使用如圖6所示，其係一透明鏡片體， 至少包含一光源侧光學面1〇及一照明侧光學面2〇，其 中，该光源側光學面1 〇係面對至少一發光二極體（LED ) 光源2如圖6所示，使該LED光源2所發出之光束可經 由光源側光學面10而入射至光學透鏡丨内；該照明側光 • 學面20係面向照射物或照射區域，當LED光源2所發出 之光束經由光源側光學面10而入射至光學透鏡丨内後， 可經由該照明侧光學面20而向前出射至照射物或照射區 域。 本創作之主要特徵在於：該光學透鏡丨之光源側光學 面10及照明側光學面20皆係利用自由曲面公式（surfaee definition of free f0rm )所設計形成；該自由曲面公式係光 學領域令的已知技術，目前包含多種不同公式供可在設計 •鏡片光學面時引用，如下列所示之式（i )歪像^式 (Anamorphic formula )及式（2 )複曲面公式（ formula) · 式（1) Anamorphic formula (歪像公式）： 20 i~1 ^+(1+Β2ί)Υ2}' (Cx)X2+ (Cy)Y2 Z=- .......—.-- - 11 -(1 +Kx)(Cx)2 ^-(1+KyKCy}2 Y2 式（2) Toric formula (複曲面公式）： 6 M364866 (CX)X2 . 1 2x=-========^....................+ Ai x! cyx=--- njui7i<x)(0^f^ ’ (1/Cy)-Zx (Cyx)Y2 Z=Zx+ —==========—·M364866 Light source side optical surface 10 Illuminated side optical surface 20 External convex 22 Peripheral part 30 Optical lens 1 Central axis 11 Concave 21 Central axis 23 Eighth, new description [New technical field] The present invention relates to an optical lens and its A lighting device, in particular, a light source side optical surface and an illumination side optical surface of the optical lens are designed by using a surface definition of free form, so that the LED light source can transmit uniform illumination through the optical lens and can satisfy special illumination. Light shape and other requirements. [Prior Art] The use of a light-emitting diode (LED) as a light source for a lighting device is a well-known technology, and has been widely used in applications such as flashlights, desk lamps, and lamps such as headlights and taillights. Auxiliary lighting devices such as camera flashes, scanning illumination light source devices, etc. of groups, street lamps, or other electronic products, which mostly use a plurality of light emitting diodes (LEDs) to form an array as a light source, and the above LED array refers to The plural 'LEDs are arranged in a certain pattern according to the needs of the lighting device' (Pattern) 'such as linear arrangement, matrix arrangement, concentric circular arrangement, etc., but not limited; and a light-emitting diode (LED) basically contains : a pedestal for carrying LED dies and externally connecting the LED dies, one or several LED dies for emitting light after conduction, and one or more hooded lenses formed of a translucent resin or glass material The cover lens is generally referred to as the first lens of the LED 3 M364866, and is encapsulated on the outside of the pedestal and the led die to be packaged into an LED component (LED assemb). Ly, referred to as LED in this creation, when used, the light emitted by the LED chip is projected through the first lens and then outward. In the application of LEDs, different lighting devices have different use conditions. Taking street lamps as an example, street lamps generally require uniform illumination in the illumination area (ie, road surface), and the range of illumination areas can best be covered. A long (ie, long axis direction, parallel road direction), wide (ie, short axis direction, vertical road direction) than a rectangular area of about 3:1, because the street lights are about 15 to 30 meters apart, the street lamp height is about 6~ 20 meters; and in order to make the LED array light source formed by the LED light source or several LEDs meet the above requirements, each LED has a basic first lens in the package structure, and the light projection direction of the LED That is, the second lens is generally disposed in front of the LED to improve the efficiency of the LED light source, such as increasing the effective illumination (illumination unit: lux = lumens lm/m2) and adjusting the effective illumination area and illumination of the LED light source. All are hooked. However, the street lamps such as high-pressure sodium lamps, although the luminous efficiency of the bulb itself is relatively high, the effective illumination of the lamps is low, mainly because the generated light shape (irradiation area) cannot effectively cover the required illumination area. And cause waste. Therefore, in the application technology of the LED light source, such as a street lamp, development of an optical lens (second lens) capable of generating a near-rectangular light shape and having high illumination uniformity and uniformity does have its needs. Sex. [New content] The main purpose of this creation is to provide an optical lens and its illumination 4 M364866 device, which uses the surface definitium of free form to design the light source side optical side and the illumination side optical side of the optical lens. Wherein, using the Anamorphic surface formula, the optical surface of the light source side is designed to be axisymmetric, and the longitudinal axis is concavely concave, and the Toric surface formula is used to make the illumination side optical surface The design forms an axisymmetric shape, and the longitudinal axis is formed into a convex shape on both sides of the intermediate concave surface, so that the optical lens has different curvatures in different axial directions, so that when the optical lens is matched with at least one LED light source, When used, it can not only improve the effective illumination of the LED light source, but also achieve the effect of generating uniform and near-rectangular light distribution patterns in the illumination area, which is suitable for illumination of street lamps, lamps or photo flashes. Use, such as street lighting, the length of the long pumping direction (parallel road direction) relative to the short axis (Perpendicular to the road) in width, a ratio of 3: 1 of a rectangular-shaped light. A further object of the present invention is to provide an optical lens and an illumination device thereof, which are formed by using a plurality of such optical lenses in the same axial direction on a housing to form a lens array or other arrangement for matching an array of LED light sources. Or other arrangement to form an LED lighting farm, in order to improve the effective illumination of the LED light source, and to achieve a uniform and near-rectangular light shape in the illumination area, suitable for street lights, lights or photo flashes - etc. Lighting use. ^ [Embodiment] In order to make the creation of the present invention clearer and more detailed, the preferred embodiment and the following diagrams are used to describe the structure and technical features of the present creation as follows: Referring to Figure 1-5, respectively, this creation is Optical lens one embodiment of the second 5 M364866 different viewing angles (the viewing angle of the optical side of the illumination side and the optical side of the light source side) and its three different sides (top, front and side) and related dimensions. The optical lens unit of the present invention is used to match at least one light-emitting diode (LED) light source 2 as shown in FIG. 6 , which is a transparent lens body, and includes at least one light source side optical surface 1 〇 and an illumination side optical The light source side optical surface 1 is facing at least one light emitting diode (LED). The light source 2 is as shown in FIG. 6 , so that the light beam emitted by the LED light source 2 can pass through the light source side optical surface 10 . The illumination side light/learning surface 20 faces the illuminating object or the illuminating area, and the light emitted by the LED light source 2 is incident into the optical lens 经由 via the light source side optical surface 10, and the illumination can be passed through the illumination The side optics 20 exits forward to the illuminant or illumination area. The main feature of the present invention is that the light source side optical surface 10 and the illumination side optical surface 20 of the optical lens are designed by using a free surface formula (surfaee definition of free f0rm); the free surface formula is an optical field Known technology, currently contains a variety of different formulas for reference in the design of the optical surface of the lens, such as the following formula (i) Anamorphic formula and formula (2) toric formula (form) 1) Anamorphic formula: 20 i~1 ^+(1+Β2ί)Υ2}' (Cx)X2+ (Cy)Y2 Z=- .......—.-- - 11 -( 1 +Kx)(Cx)2 ^-(1+KyKCy}2 Y2 Formula (2) Toric formula: 6 M364866 (CX)X2 . 1 2x=-========^. ...................+ Ai x! cyx=--- njui7i<x)(0^f^ ' (1/Cy)-Zx (Cyx)Y2 Z =Zx+ —==========—·
uJi<〇yx) Y 其中，在設計鏡片之光學面時，設計者可隨鏡片光學面之 -使用需要而變更公式中各光學參數，並藉電腦軟體進行模 •擬試驗，以使設計完成之光學鏡月能達成該鏡片所預期之 使用效果’而本創作利用自由曲面公式（surface definition of free form)來設計該光學透鏡丨之光源侧光學面1〇及 照明側光學面20，可使所形成之光源侧光學面1〇及照明 侧光學面20皆為連續曲面，以有利於製作該光學透鏡i 之成型模具的加工作業，即可使成型模具加工容易，且有 利於光源側光學面10及照明侧光學面2〇之光學面的面型 精度，即成型面型精度相對提高而可達成光學等級。 以如圖1-5所示之本實施例光學透鏡丨而言，其中該 光源侧光學面10係利用歪像公式（Anamorphic formuia) 設計而形成一軸對稱，且延著長軸剖向為内凹形狀，如圖 2所示；該照明側光學面20係利用複曲面公式（T〇ric formula)設計而形成一軸對稱，且兩侧外凸22而中間内 凹21之Μ形狀，且光源侧光學面1 〇與照明側光學面2〇 對應配合；而如圖3-5所示實施例光學透鏡丨之一實際可 行尺寸，其係由創作人（設计者）針對路燈之使用需要， 如滿足路燈所需X轴（即長軸方向，平行道路走向）的長 度相對於Υ軸（即短軸方向’垂直道路走向）寬度比例為 7 M364866 .之矩形光形需求及均勻度要求，而變更公式中各光學 ^數並藉電腦軟義行模擬試驗，以設計完成—能達成該 兄^所預期之使用效果（如3 :1矩形光形）之光學鏡片工 的實際產品，至於光學透鏡！之本體上屬於非光學面之其 餘口P分’如圖1、2中在光源側光學面1〇及照明側光學面 20之外圍部3〇 ’其形狀及構造並不限制，可依照明裝置 之組裝品要而改變設計，如圖丨_5所示之本實施例光學透 鏡1係设计成一矩形透鏡體，而其外圍部3〇主要是依據 #照明4置3所使用之外罩4上所設組裝用孔槽41之形狀 及構造而配合設計。 又本創作光學透鏡1主要是藉由光源側光學面10與 照明側光學面20之對應配合關係，使光學透鏡i在χ軸 (即長軸方向，平行道路走向）及γ軸（即短軸方向，垂 直道路走向）上具有不同曲率，進而可對LED光源2所 發出之光束201在X軸及γ軸上產生不同發散角的折射 效果，以形成長寬比例不同的矩形光形；以圖8所示說明， •當一 LED光源2所發出之光束201以固定入射角θ，χ、θ，γ 入射並經由該光學透鏡1而再出射至照射區域（顯示區域） Α時，由於光學透鏡1在X軸及γ軸上具有不同曲率，因 此可在X軸及Y軸方向產生不同發散角之出射光2〇2，如 •圖8所示出射光202在X軸上之發散角θ’χ大於出射光2〇2 在Υ軸上之發散角Θ、，因此在照射區域a位置處，出射 光202在X軸上所形成之照射範圍Lx大於出射光2〇2在 Y軸上所形成之照射範圍Ly，也就是可在照射區域A處 產生一長寬比例約Lx : Ly之矩形的光形的強度分佈 8 M364866 (rectangular light distribution patterns )如圖 q 此 * v所不；以 如圖1-5所示之本實施例光學透鏡1為例說明， 亚參照圖 6之照明光置3所示，本實施例光學透鏡1係針對路燈使 用而設計之光學透鏡，因此LED光源2所發出之光束^〇1 經過光學透鏡1折射後可產生路燈所需X軸長度（即長轴 方向’平行道路走向）相對於γ軸寬度（即短轴方向，垂 直道路走向）約為3 : 1之近矩形光形，藉以滿足^严所 需特定比例之近矩形光形的需求及均勻度要求；至於^近uJi<〇yx) Y In the design of the optical surface of the lens, the designer can change the optical parameters of the formula according to the optical surface of the lens, and use the computer software to perform the simulation test to complete the design. The optical lens can achieve the intended use effect of the lens. The present design uses the surface definition of free form to design the light source side optical surface 1 and the illumination side optical surface 20 of the optical lens. The formed light source side optical surface 1〇 and the illumination side optical surface 20 are continuous curved surfaces to facilitate the processing of the molding die of the optical lens i, so that the molding die can be easily processed, and the light source side optical surface 10 is facilitated. And the surface accuracy of the optical surface of the illumination side optical surface 2, that is, the accuracy of the molding surface type is relatively improved, and the optical level can be achieved. In the optical lens unit of the embodiment as shown in FIG. 1-5, the light source side optical surface 10 is designed to be axisymmetric by an Anamorphic formuia design, and is concave in the longitudinal direction. The shape is as shown in FIG. 2; the illumination side optical surface 20 is designed to be axisymmetric by using a toric formula, and has a convex shape on both sides and a concave shape in the middle concave portion 21, and the light source side is optical. The surface 1 〇 is matched with the illumination side optical surface 2 ;; and one of the practical lens sizes of the embodiment shown in FIGS. 3-5 is required by the creator (designer) for the use of the street lamp, such as The length of the X-axis (ie, the long-axis direction, the parallel road direction) required for the street lamp is relative to the x-axis (ie, the short-axis direction 'vertical road direction'). The ratio of the rectangular light shape requirements and uniformity requirements is 7 M364866. In the opticals and the computer simulation, the design is completed - the actual product of the optical lens work that can achieve the expected effect of the brother (such as 3:1 rectangular light shape), as for the optical lens! The remaining ports P of the non-optical surface on the body are as shown in FIG. 1 and FIG. 2, and the shape and configuration of the outer surface of the optical surface 1〇 and the illumination side optical surface 20 are not limited. The assembly of the optical product 1 is designed as a rectangular lens body, and the outer peripheral portion 3 is mainly used according to the #照明 4 setting 3 The shape and structure of the assembly hole groove 41 are designed to match the design. In addition, the optical lens 1 of the present invention mainly uses the corresponding cooperation relationship between the light source side optical surface 10 and the illumination side optical surface 20 to make the optical lens i in the χ axis (ie, the long axis direction, the parallel road direction) and the γ axis (ie, the short axis). The direction, the vertical road direction has different curvatures, and the light beam 201 emitted by the LED light source 2 can have different divergence angles on the X-axis and the γ-axis to form a rectangular light shape with different length and width ratios; 8 shows that, when the light beam 201 emitted from an LED light source 2 is incident at a fixed incident angle θ, χ, θ, γ and is again emitted to the illumination area (display area) via the optical lens 1, due to the optical lens 1 has different curvatures on the X-axis and the γ-axis, so that the emitted light 2 〇 2 of different divergence angles can be generated in the X-axis and Y-axis directions, as shown in Fig. 8 , the divergence angle θ' of the illuminating light 202 on the X-axis. χ is larger than the divergence angle 出 of the exiting light 2〇2 on the x-axis, so that at the position of the irradiation area a, the irradiation range Lx formed by the outgoing light 202 on the X-axis is larger than that of the outgoing light 2〇2 on the Y-axis. The irradiation range Ly, that is, can be generated at the irradiation area A The intensity distribution of the light shape of a rectangle having an aspect ratio of about Lx: Ly is 8 M364866 (rectangular light distribution patterns) as shown in FIG. q; the optical lens 1 of the present embodiment as shown in FIGS. 1-5 is taken as an example. The optical lens 1 of the present embodiment is an optical lens designed for use in a street lamp. Therefore, the light beam emitted by the LED light source 2 is refracted by the optical lens 1 to generate a street light. The required X-axis length (ie, the long-axis direction 'parallel road direction') is about 3:1 near-rectangle shape with respect to the γ-axis width (ie, the short-axis direction, the vertical road direction), to meet the specific ratio required by the strictness. Near-rectangular light shape requirements and uniformity requirements; as for ^ near
矩形光形之長寞比例關係可隨光學透鏡丨之使用需要=變 更公式中各光學參數，並藉電腦軟體作模擬試驗，以 計完成之光學鏡片能達成該光學透鏡丨之最佳使用$設 又吁利用複數個同等之光學透鏡以同軸向在一外 ’ 成一透鏡陣列，供可搭配一 LED光源陣列使用， 一 LED照明裝置，以適用於路燈、車燈或照相閃 照明使用。 1寺 本創作之發光二極體（LED )照明裝置3如圖6、7 所示，包含至少一 LED光源2、至少一光學透鏡i及一、 罩（holder) 4，其中，該led照明裝置3的形狀、 大小、組裝型態、及LED光源與光學透鏡！ < 雁 關係（如-LED錢對應—光學透鏡n並不限制，= 應用領域之不同需要而配合設計，如針對路燈、手電°筒、 檯燈、車燈如車前燈及車尾燈組、或其他電子產品之輔助 照明裝置如照相機閃光燈、掃描照明光源裝置等不同的應 用而提供不同的設計，而本實施例如圖7所示係以路燈或 同類物品為例說明，但非用以限制本創作。參考圖一7 ^ M364866 所示本創作之光學透鏡1係用以搭配至少一發光二極體 ^LED)光源2使用，如圖6所示本實施例之光學透鏡2 係對應搭配一 LED光源2使用，其中該光學透鏡丨係使 用如圖3·5所示之實施例，也就是針對路燈使用需要而設 計之光學透鏡，其中該LED光源2係設置在該光源侧光 學面10之内凹形曲面内；又本創作進一步可利用數個該 等光學透鏡1以同軸向，即光學透鏡i之χ軸/γ軸同向， 而在一較大尺寸之外罩4上形成一透鏡陣列如圖7所示為 • 一 6乘6之透鏡陣列但不限制，供可對應搭配一由複數個 LED光源2所形成之LED光源陣列以構成一 LED照明裝 置3，藉以降低LED光源之過程損耗、提高LED光源有 效照度，並可達成在照射區域中產生均勻且近矩形光形的 使用效果；又圖7所示由6乘6透鏡陣列所形成之LED 照明裝置3實施例係針對路燈使用而設計，但透鏡陣列之 排列方式不限制，其可隨不同的使用需要而變更設計，如 可為不同數目之陣列如5乘4、2乘1或其他非陣列之排 0列方式如線性排列、同心圓形排列、交錯式排列等，以適 用於其他照明用途如車燈或照相閃光燈等。 外罩（holder) 4係可以密封方式罩設在LED光源2 之照明側外圍（圖未示），至於外罩4之形狀、組裝型態 i尺寸大小等並不限制，可依應用領域之不同需要‘配i 設計，如該外罩4可利用塑膠射出成型工藝製成一體成型 結構體如圊6、7所示，亦可為由多件物組成之組合式結 構體（圖未示）；該外罩4上設有至少一孔槽41，如圖6 所示外罩4上設一孔槽41或如圖7所示外罩4上設置複 M364866 數個孔槽41並形成-孔槽陣列；而各孔槽4i中可分別搬 设-光學透鏡1以形成-透鏡陣列如圖7所示之6乘6之 透鏡陣列但不限制’而各孔槽41及光學透鏡i可分別對 應搭配- LED光源2使用以形成一發光二極體（led ) 照明裝置3。又以如圖M所示之本實施例而言，該光學 透鏡1之外型及尺寸大小（即外圍部3G)係配合外罩4 上所設孔槽4、1設計，以使光學透鏡i可對應嵌設在孔槽 41中並結&合成了體’而其結合方式不限制，可藉黏膠黏結 固定並以能達成防水效果為佳。 再===6、7所不，使用時，咖_ _ _ 皆可對應經過外罩4上光學透鏡陣列中 之果外 投射’除可達成光學透鏡1所預期 先^果卜，並可提高LED光源之有效照度，並增進 LED燈光置3之光學效率及使 作LED照明裝置3伤生+从當,L 千人田於不钔 八別㈣先 設置至少一孔槽41供 刀’…人X光學透鏡1，因此外罩4與光學透鏡1係 孔槽41的形狀基本上係依據對應嵌設之 予’兄、卜型而配合設計，因此，本創作所使用之光 :透Ϊ光1學H型 1模具的設計、製作及生產製程可相對簡 ^之光學面也可簡易達成最佳化設計，有The longitudinal relationship of the rectangular shape can be used with the optical lens. = Change the optical parameters in the formula, and use the computer software for the simulation test. The optical lens can be used to achieve the best use of the optical lens. It also calls for the use of a plurality of identical optical lenses to form an array of lenses in the same axial direction for use with an array of LED light sources, an LED illumination device for use in streetlights, headlights or photographic flash illumination. As shown in FIGS. 6 and 7, the light-emitting diode (LED) illumination device 3 of the present invention comprises at least one LED light source 2, at least one optical lens i and a cover holder 4, wherein the LED illumination device 3 Shape, size, assembly type, and LED light source with optical lens! < geese relationship (such as - LED money corresponding - optical lens n is not limited, = the application of different needs and design, such as for street lamps, flashlight cylinders, lamps, lamps such as headlights and taillights, or The auxiliary lighting device of other electronic products provides different designs for different applications such as camera flash, scanning illumination light source device, etc., and the present embodiment is illustrated by using a street lamp or the like as an example, but is not intended to limit the creation. Referring to Figure 1 7 ^ M364866, the optical lens 1 of the present invention is used with at least one light-emitting diode (LED) light source 2, as shown in Fig. 6, the optical lens 2 of the present embodiment is matched with an LED light source. 2, wherein the optical lens system uses an embodiment as shown in FIG. 3.5, that is, an optical lens designed for use in a street lamp, wherein the LED light source 2 is disposed in the concave side of the light source side optical surface 10. In the shape of the curved surface, the present invention can further utilize a plurality of the optical lenses 1 to form a lens array on the cover 4 in the same axial direction, that is, the x-axis/γ axis of the optical lens i. 7 is shown as a • 6 by 6 lens array, but not limited, for an array of LED light sources formed by a plurality of LED light sources 2 to form an LED lighting device 3, thereby reducing the process loss of the LED light source, improving The LED light source has effective illumination and can achieve a uniform and near-rectangular light shape in the illumination area; and the LED illumination device 3 embodiment formed by the 6 by 6 lens array shown in FIG. 7 is designed for use in street lamps. However, the arrangement of the lens arrays is not limited, and the design can be changed according to different use requirements, such as a different number of arrays such as 5 by 4, 2 by 1 or other non-array rows of 0 such as linear arrangement, concentric circles Shaped, staggered, etc., for other lighting purposes such as lights or camera flash. The cover 4 can be sealed on the periphery of the illumination side of the LED light source 2 (not shown). The shape of the cover 4 and the size of the assembly type i are not limited, and can be adapted to the needs of the application field. With the i design, if the outer cover 4 can be formed into an integrally formed structure by a plastic injection molding process, as shown in FIGS. 6, 7 or a combined structure (not shown) composed of a plurality of pieces; the cover 4 At least one hole slot 41 is provided on the outer cover 4, as shown in FIG. 6, or a plurality of holes 41 are formed on the outer cover 4 as shown in FIG. 7, and an array of holes is formed. The optical lens 1 can be separately disposed in the 4i to form a lens array of 6 by 6 as shown in FIG. 7 but not limited to 'the holes 41 and the optical lenses i can be respectively matched with the LED light source 2 A light-emitting diode (led) illumination device 3 is formed. In addition, in the embodiment shown in FIG. M, the shape and size of the optical lens 1 (ie, the peripheral portion 3G) are designed to match the holes 4 and 1 provided in the cover 4 so that the optical lens i can be Correspondingly, it is embedded in the slot 41 and the joint is combined with the body', and the manner of bonding is not limited, and it can be fixed by adhesive bonding and it is better to achieve waterproof effect. Then ===6, 7 no, when used, the coffee _ _ _ can correspond to the extra-projection through the optical lens array on the outer cover 4, except that the optical lens 1 can be achieved first, and the LED can be improved. The effective illumination of the light source, and improve the optical efficiency of the LED light 3 and make the LED lighting device 3 injuring + from the D, the thousand thousand people in the eight (four) first set at least one hole slot 41 for the knife '... human X The optical lens 1 is such that the shape of the outer cover 4 and the optical lens 1 of the optical groove 1 is basically designed according to the corresponding embedded structure of the brother and the pad. Therefore, the light used in the present invention is: The design, production and production process of the type 1 mold can be easily optimized for the optical surface of the simple mold.
鏡1的光學效率，並相對簡化本創作LED 照明裝置3的級较作業。 吾二為本創作之優選實施例，對本創作而言僅 識1員理解，在^限制性的。在本專業技術領域具通常知 、 枣創作權利要求所限定的精神和範圍内可 • M364866 但都將落入本 對其進行許多改變，修改，甚至等效變更， 創作的保護範圍内。 【圖式簡單說明】 圖1係本卿光學透鏡—實_之—㈣（㈣侧光學面 視角）立體示意圖。 圖2係圖1之另—視角（光源侧光學面）立體示意圖。 圖3係本創作光學透鏡一實施例之正面（χ_γ軸面）示意 圖（包含各部相關尺寸，單位 mm)。 、The optical efficiency of the mirror 1 is relatively simplified compared to the level of operation of the present LED lighting device 3. My second is a preferred embodiment of the creation, and for the purpose of this creation, only one member understands, and is limited. It is within the spirit and scope of the general technical and technical claims defined in this technical field. M364866, however, will fall within the scope of protection for many changes, modifications, and even equivalent changes. [Simple description of the drawing] Fig. 1 is a perspective view of the optical lens of the present invention - (4) ((4) side optical surface viewing angle). 2 is a perspective view of another perspective view (light source side optical surface) of FIG. Fig. 3 is a schematic view of the front side (χ_γ axis plane) of an embodiment of the present optical lens (including the relevant dimensions of each part, in mm). ,
圖4係圖3中剖線4-4 ( X軸）之侧面剖視示意圖（包含 各部相關尺寸，單位！nm )。 圖5係圖3中剖線5-5 (Y軸）之側面剖視示意圖（包含 各部相關尺寸，單位mm)。 圖6係本創作光學透鏡搭配一 LED光源及一外罩使用之 剖面視示意圖（包含各部相關尺寸，單位mm)。 圖7係本創作光學透鏡在外罩上形成一 LED光學透鏡陣 列之使用狀態示意圖。 圖8係本創作之LED光源以固定照射角射入光學透鏡後 可在X軸及Y軸方向產生不同發散角之投射光之說明示 意圖。 圖9係圖8中不同發散角之投射光可產生矩形光形之說明 不意圖。 【主要元件符號說明】 光學透鏡1 光源側光學面10 中心軸11 12 .M364866 照明侧光學面20 内凹21 外凸22 中心轴23 外圍部30 LED光源2 光束201 —出射光202 • LED照明裝置3 外罩4 孔槽41Figure 4 is a side cross-sectional view of the line 4-4 (X-axis) of Figure 3 (including the relevant dimensions of each part, unit! nm). Figure 5 is a side cross-sectional view of the line 5-5 (Y-axis) of Figure 3 (including the dimensions of each part, in mm). Figure 6 is a cross-sectional view of the optical lens of the present invention combined with an LED light source and a cover (including the relevant dimensions of each part, in mm). Fig. 7 is a schematic view showing the state in which the optical lens of the present invention forms an array of LED optical lenses on the outer cover. Fig. 8 is an explanatory view showing the projection light of different divergence angles in the X-axis and Y-axis directions after the LED light source of the present invention is incident on the optical lens at a fixed illumination angle. Fig. 9 is an illustration of the fact that the projection light of different divergence angles in Fig. 8 can produce a rectangular light shape. [Main component symbol description] Optical lens 1 Light source side optical surface 10 Center axis 11 12 .M364866 Illumination side optical surface 20 Concave 21 External convex 22 Central axis 23 Peripheral part 30 LED light source 2 Beam 201 - Exit light 202 • LED lighting device 3 cover 4 hole slot 41