M277003 八 、新型說明： 【新型所屬之技術領域】 本創作係關於一種透鏡，尤其是關於一種可將發光二 極體(LED)光源所發出之光線力口以均勻化，並具有破壞像 射與集光功能之具有光均勻化效果之集光透鏡。 【先前技術】 LED光源由於具有體積小、產熱性低、耗電量低、使 用壽命長的特性，加上近來製造技術之進步，其發光亮度 不斷提升，且其製造成本亦逐漸降低，在可預見之將來， LED光源將取代目前燈泡或日光燈源，而成為照明設備中 最重要之發光元件。目前所利用之照明用光源中，以白色 光為大宗，但由於目前並未有直接發射白光之LED晶粒， 故必須利用不同色光混合後以形成白光，其發光方式有如 第一圖所示，利用一藍光LED晶粒（LED chip)l 1，配合黃 色螢光粉層12，藉由藍光LED晶粒11所發出之藍光15 激化黃色螢光質121，產生黃光16，藍光與黃光由於係互 補光，二者混合後即可形成白光。 白光LED光源10中，倘由LED晶粒11所發出之光 線(如光線14)在該螢光粉層12中的路徑較長，則其所激發 之黃光將較光線13所激發者多，因此造成光線投射後形成 一光照區域由中心向外逐漸偏黃且色度不均的現象。特別 的疋，將其作為一般投射照明利用時，通常會在該光 源10前裝設一凸透鏡，藉以集中LED光源10所發射之光 線，或同時將該LED光源10置放於一反光罩中（如第 M277003 二圖所示），將散射角度較大之光線14加以反射，以提高 投射區域之亮度。然而使用凸透鏡或反光罩的結果，不但 會使投射光亮度分佈不均，容易於光投射區域之外圍形成 光暈，且反光罩之反射集中效果亦是有限。另一方面，則 由於LED光源結構之特性，也會造成投射區域外圍區域顏 色偏黃而色度不一致的缺點。此外，僅使用一般透鏡罩覆 於LED光源上時，可清楚看見該LED晶粒以及其所耦接 之電路板，甚至疋其上所印刷之文字，在某些較為精緻的 裝置上，將顯得較不美觀。 【新型内容】 為使LED光源所發射出之光線在經過透鏡集中後， 仍能夠色度均勻，同時免除光暈所產生光度不均之缺點， 並增加反射光照強度，本創作將提供一種分佈有複數個配 光鏡之透鏡’藉由其配光與混光之特性，克服led光源結 構原本所存有光照外圍色度不均之缺點，並大幅改善原本 凸透鏡所產生之光暈困擾，產生一分布均勻且光色一致之 投射光線；同時也可藉由該些配光鏡破壞像射之特性，使 得該LED光源在未發光時，仍能保持美觀。另一方面，則 是透過側壁之全内反射，將LED光源散射角度較大之光線 加以集中，提高整體投射之亮度。 本創作具有光均勻化效果之集光透鏡包括一入光鏡 面，該入光鏡面係一凸透鏡面；一出光鏡面，該出光鏡面 係设於該透鏡上所述入光鏡面相對的另一端，且該出光鏡 面上同時分佈有複數個配光鏡，該些配光鏡並排列形成一 M277003 鏡面群；以及一侧壁，該侧壁係所述入光鏡面與所述出光 鏡面間之透鏡週壁；光源之光線由該入光鏡面入射後，可 藉由侧壁之反射，以及該出光鏡面上所設該些配光鏡之配 光與混光，而投射出光度與色度均勻且亮度較高之光線。 其中，該出光鏡面之鏡面曲率可為零，或是為正或負之凸 透鏡面或凹透鏡面，而該出光鏡面上所形成之該些配光 鏡，其可以矩陣、蜂巢狀或是同心圓等排列方式，平均分 布於該出光鏡面之表面上，形成一鏡面群。構成該鏡面群 之各該配光鏡，其鏡面曲率可皆同為正曲率或是負曲率， 或是由正曲率、負曲率之該配光鏡相互混合所組成。此外， 各該配光鏡其水平與垂直曲率半徑可為一致或相異。 LED光源所發出之光線，首先由該入射鏡面射入該透 鏡中，無論該光線係由LED晶粒垂直射出或是以其他角度 射出者，或是因該光線所激發之他色光線，其散射角度較 大者，可初步藉由側壁之全内反射作用，進行反射集中， 隨後再與其他光線一同透過該出光鏡面所設之複數個配光 鏡，將個別光線偏向鏡面中心集中，同時改變原各色光之 投射路徑，以達到光線集中而增加亮度之目的，並藉由各 色光光徑之重新分配與混合，使得光線分布更為均勻，光 色更為一致，而能夠大幅改進以往光暈現象與光色不均之 缺失。 以下將配合圖式進一步說明本創作的實施方式，下述 所列舉的實施例係用以闡明本創作，並非用以限定本創作 之範圍，任何熟習此技藝者，在不脫離本創作之精神和範 圍内，當可做些許更動與潤飾，因此本創作之保護範圍當 M277003 視後附之申請專利範圍所界定者為準。 【實施方式】 請參閱第三圖與第四圖，該二圖為本創作實施例之立 體示意圖。本創作實施例之透鏡20包括一入光鏡面22、 一出光鏡面21與一侧壁23。該入光鏡面22與該出光鏡面 21係η又於a亥透鏡20相對之兩端’而该入光鏡面22與該出 光鏡面21間之透鏡週壁即為該侧壁23，其中該出光鏡面 21上並設有複數個配光鏡211。LED光源所發出之光線， 可由該入光鏡面22投射進入該透鏡20中，並由該出光鏡 面21投射出來，照射至標的物上。本創作實施例中所利用 之LED光源為一由藍光LED晶粒加上黃色螢光粉層之白 光LED，其亦可為藍光[ED晶粒發出藍光激發紅藍綠三色 螢光質之白光LED、由紫外光LED晶粒發出紫外光激發紅 藍綠三色螢光質之白光LED以及將藍光LED晶粒與黃光 LED晶粒或將藍光LED晶粒、綠光LED晶粒與紅光LEd 晶粒封裝在一起之白光LED，或利用其他方式而得發出白 光之LED光源。 本創作實施例透鏡20之出光鏡面21上（請參閱第五 圖）’設置有複數個配光鏡211，該些配光鏡211係排列分 布於該出光鏡面21上，並形成一鏡面群，用以將出射光線 加以均勻化；其並設有一側壁23，用以集中LED光源其 散射角度較大之光線。請再參閱第六圖，本創作實施時， 可將LED光源1〇,或是裝設於反光罩17之LED光源1〇, 置於該透鏡20之後方。藍光LED晶粒11其所發射出之藍 M277003 光24光線，其中散射角度較大 π的反射加以集中，以減少 n亥反先罩 光線進—㈣=人===，而耗發射出與反射之 "24㈣h 將咖晶粒11散射之 Λ 射級14)往鏡面中心集中靠攏，因 光24光線整體散射之角度，而提升投射區 或之π度。W藍光24光線其後在透鏡2G中行進，盆中 "^光鏡面21加以折射處理之光線18，即可利 用射角大於臨界角之全内反射特性，透過侧壁18，反射 後向鏡面中。集中’而有著集中加強亮度之效果。隨後， 該些山藍光24(包括全内反射之光線18)即準備由該出光鏡面 21端’向外投射出去。由於該出光鏡面21上滿佈有複數 们配光，211 ’且當該些配光鏡211係為正鏡面曲率之凸 透鏡面枯該些藍光2 4光線將再一次經過聚集分布，使 原射狀而不相交錯之光線得以交集，並藉由各光線 之交集作用，使LED光源所投射出之光線光度更加均 勻。同時藉由該些配光鏡211之作用，使經過該出光鏡面 ’、 卜圍&域之光線’亦得經過配光而能散佈照射， 消除以往利用單純凸透鏡所產生之光暈問題。 另一方面，請參閱第七圖，藍光LED晶粒11所發出 之藍光’尚會激發螢光粉層中所含有之黃色螢光質，因而 叮门守產生汽光25。該黃光25亦如前所述，可經由該些 配光鏡211之混光作用，而投射出均勻之黃光25，同樣亦 可藉由該些配光鏡211之重新配光，避免掉投射區域外圍 M277003 光暈的產生◦因此，經由藍光led晶粒11所發出之藍光 以及由黃色螢光粉層所激發之黃光，二者間因係相互補之 色光，混合後即町產生白光。請參閱第八圖，當藍光24 與黃光25經過該些配光鏡211之配光以及混光作用，即使 該藍光LED晶粒11所發出之光線於螢光粉層中之光徑較 長（如第一圖，光線I4)，而於led光源10外圍處產生偏 黃之投射光時，都玎藉由該些配光鏡211 ’將部分黃光25 偏向鏡面中心折射’而仟與監光24進行混光’因而產生色 度較以往均勻之投射光。此外，加上由侧壁所反射集中之 光線，也提高了 LED光源整體之投射亮度。 本創作實施例之出光鏡面21 ’除係利用鏡面曲率為零 之鏡面外，亦可利用正或負鏡面曲率之凸透鏡面或凹透鏡 面，而該出光鏡面21上所分布之配光鏡211，亦可皆為正 或負鏡面曲率之小透鏡’或是由正、負鏡面曲率之配光鏡 相混合所組成。無論是該出光鏡面21或該配光鏡211，當 係利用負鏡面曲率之凹透鏡面時，雖會將由入光鏡面22 所聚集之光線加以散射，但其散射之效果亦如同利用凸透 鏡面時之效果，除可將個別藍光24或個別黃光25加以均 勻化外，亦可將該二色光加以混光，產生均勻之白光。若 係以投射照明為目的，期望光照區域較集中、亮度較高之 投射需求時’可利用零或正鏡面曲率之出光透鏡與正&面 曲率之配光鏡為佳。 另一方面，該些配光鏡211本身亦係一小透鏡，其垂 直與水平方向之曲率可為—致或相異。此外，該些配光鏡 m之排列方式，可以矩陣方式、蜂巢狀方式或是同心圓 M277003 之方式，排列分佈於該出光鏡面21上，以形成一鏡面群。 該鏡面群除具有配光與混光之功能外，尚可藉由此配光與 混光之功能，達到破壞像射之目的。蓋利用一般透鏡或平 面鏡罩覆於LED光源上時，可清楚看見該LED晶粒以及 其所耦接之電路板，甚至是其上所印刷之文字，在某些較 為精緻的裝置上，顯得較不美觀。因此，透過本創作，即 可將該些LED晶粒或文字等影像，經過配光與混光，破壞 掉其原本之像射，使呈現一模糊均化的影像，而可提升LED 光源整體之美觀性。 【圖式簡單說明】 第一圖係LED光源之光徑示意圖。 第二圖係將LED光源置於反光罩中之光徑示意圖。 第三圖係本創作實施例之立體示意圖。 第四圖係本創作實施例之仰視立體示意圖。 第五圖係第三圖沿A-A線之剖視圖。 第六圖係本創作實施例以LED光源照射之光徑示意圖。 第七圖係本創作實施例以LED光源照射之另一光徑示意 圖。 第八圖係本創作實施例以LED光源照射後光線反射與混 光之示意圖。 【主要元件符號說明】 10 LED光源 12 螢光粉層 11 LED晶粒 11 M277003 121 螢光質 13 光線 14 光線 15 藍光 16 黃光 17 反光罩 18 光線 20 透鏡 21 出光鏡面 211 配光鏡 22 入光鏡面 24 藍光 25 黃光M277003 VIII. Description of the new type: [Technical field to which the new type belongs] This creation is about a lens, and in particular, it can uniformize the power of the light emitted by a light emitting diode (LED) light source, and has the characteristics of destroying image radiation and Light collecting lens with light homogenizing effect. [Previous technology] Due to the characteristics of small size, low heat generation, low power consumption, and long service life, coupled with recent advances in manufacturing technology, its light emitting brightness has been continuously improved, and its manufacturing cost has gradually decreased. Foreseeing the future, LED light sources will replace current bulbs or fluorescent light sources and become the most important light-emitting elements in lighting equipment. Among the currently used lighting sources, white light is used as the bulk, but since there are currently no LED crystals that directly emit white light, it is necessary to use different colors of light to form white light. The light emission method is as shown in the first figure. A blue light LED chip (LED chip) 11 is used in conjunction with the yellow phosphor layer 12 to stimulate the yellow fluorescent substance 121 by the blue light 15 emitted by the blue light LED chip 11 to generate yellow light 16. The blue light and the yellow light are caused by Complementary light, white light can be formed when the two are mixed. In the white LED light source 10, if the path of the light (such as light 14) emitted by the LED die 11 in the phosphor layer 12 is longer, the yellow light excited by it will be more than that excited by light 13. Therefore, a phenomenon in which a light area is gradually yellowed from the center to the outside and the color unevenness is formed after the light is projected. In particular, when it is used as general projection lighting, a convex lens is usually installed in front of the light source 10 to focus the light emitted by the LED light source 10, or the LED light source 10 is placed in a reflector at the same time ( As shown in the second figure of M277003), the light 14 with a larger scattering angle is reflected to improve the brightness of the projection area. However, as a result of using a convex lens or a reflector, not only the brightness distribution of the projection light is uneven, but it is easy to form a halo around the light projection area, and the reflection concentration effect of the reflector is also limited. On the other hand, due to the characteristics of the LED light source structure, the color of the peripheral area of the projection area is yellowish and the chromaticity is inconsistent. In addition, when only the general lens cover is used to cover the LED light source, the LED die and the circuit board to which it is coupled can be clearly seen, and even the printed text on it will appear on some more delicate devices. Less beautiful. [New content] In order to make the light emitted by the LED light source pass through the lens, the chromaticity can be uniform, and the disadvantage of uneven luminosity caused by the halo can be avoided, and the intensity of reflected light can be increased. Through the characteristics of light distribution and mixed light, the lens of the plurality of light distribution mirrors overcomes the shortcomings of uneven chromaticity in the periphery of the light source originally existed in the LED light source structure, and greatly improves the halo problem caused by the original convex lens, resulting in a distribution The light is projected uniformly and uniformly; at the same time, the characteristics of image transmission can be destroyed by the light distribution mirrors, so that the LED light source can still maintain a beautiful appearance when it is not emitting light. On the other hand, it is through the total internal reflection of the side wall to concentrate the light with a larger scattering angle of the LED light source, thereby improving the overall projection brightness. The light-collecting lens with light homogenizing effect in this creation includes a light-entering mirror surface, which is a convex lens surface; a light-exiting mirror surface, which is provided at the other end of the lens opposite to the light-entering mirror surface, and A plurality of light distribution mirrors are simultaneously distributed on the light emitting mirror surface, and the light distribution mirrors are aligned to form a M277003 mirror group; and a side wall is a peripheral wall of the lens between the light incident mirror surface and the light exit mirror surface. ; After the light from the light source is incident from the incident mirror, it can be reflected by the side wall, and the light distribution and mixing of the light distribution mirrors provided on the light exit mirror. High light. The light curvature of the light-emitting mirror surface may be zero, or a positive or negative convex lens surface or concave lens surface, and the light distribution lenses formed on the light-emitting mirror surface may be in a matrix, a honeycomb shape, or a concentric circle. The arrangement is evenly distributed on the surface of the light emitting mirror surface to form a mirror surface group. Each of the light distribution lenses constituting the mirror surface group may have the same surface curvature as a positive curvature or a negative curvature, or may be formed by mixing the light distribution lenses with positive and negative curvatures. In addition, the horizontal and vertical radii of curvature of each of the light distribution lenses may be the same or different. The light emitted by the LED light source first enters the lens through the incident mirror surface, whether the light is emitted vertically by the LED die or at another angle, or it is scattered by other colors excited by the light. For larger angles, the total internal reflection of the side wall can be used to concentrate the reflection, and then pass through other light distribution mirrors set by the light-emitting mirror surface with other light rays to divert individual light rays toward the center of the mirror surface and change the original. The projection path of each color of light is to achieve the purpose of concentrated light and increase the brightness. Through the redistribution and mixing of the light paths of each color, the light distribution is more uniform and the light color is more consistent, which can greatly improve the past halo phenomenon. The lack of light and color unevenness. The following will further explain the implementation of this creation in conjunction with the drawings. The examples listed below are used to clarify this creation and are not intended to limit the scope of this creation. Anyone skilled in this art will not depart from the spirit and Within the scope, when some changes and retouching can be done, the protection scope of this creation shall be as defined by the scope of the attached patent application. [Embodiment] Please refer to the third figure and the fourth figure, which are schematic views of the creative embodiment. The lens 20 of this creative embodiment includes a light-entering mirror surface 22, a light-exiting mirror surface 21, and a side wall 23. The light incident mirror surface 22 and the light exit mirror surface 21 are at two opposite ends of the a lens 20, and the lens peripheral wall between the light incident mirror surface 22 and the light exit mirror surface 21 is the side wall 23, where the light exit mirror surface A plurality of light distribution lenses 211 are provided on 21. The light emitted by the LED light source can be projected into the lens 20 by the light incident mirror surface 22, projected out by the light exit mirror surface 21, and irradiated onto the target. The LED light source used in this creative embodiment is a white LED with blue LED chips and a yellow phosphor powder layer, which can also be blue light. [ED chips emit blue light to excite red, blue and green three-color fluorescent white light. LEDs, white LEDs that emit red, blue, and green three-color fluorescent light by ultraviolet light emitted from ultraviolet LED chips, and combine blue LED chips and yellow LED chips, or blue LED chips, green LED chips, and red light White LEDs with LEDs packaged together, or LED light sources that emit white light by other means. A plurality of light distribution mirrors 211 are provided on the light-emitting mirror surface 21 of the lens 20 of this creative embodiment (see the fifth figure), and the light distribution mirrors 211 are arranged on the light-emitting mirror surface 21 to form a mirror group. It is used for homogenizing the emitted light; it is also provided with a side wall 23 for concentrating the light with a larger scattering angle of the LED light source. Please refer to the sixth figure again. In the implementation of this creation, the LED light source 10 or the LED light source 10 installed on the reflector 17 can be placed behind the lens 20. The blue M277003 light 24 emitted by the blue LED die 11 is concentrated, and the reflection with a larger scattering angle π is concentrated to reduce the light entering through the n-inverter, and the emission and reflection are consumed. "&Quot; 24Λh The Λ emission level 14) scattered by the coffee grains 11 is brought closer to the center of the mirror surface. Due to the angle of the overall scattering of the light 24, the projection area or π degree is increased. W blue light 24 light then travels in the lens 2G. In the basin, the light rays 18 that are refracted by the mirror surface 21 can use the total internal reflection characteristic with an emission angle greater than the critical angle. The light is transmitted through the side wall 18 and reflected back to the mirror surface. in. Concentrated 'and has the effect of enhancing the brightness. Subsequently, the mountain blue lights 24 (including total internal reflection light 18) are ready to be projected outward from the end 21 of the light emitting mirror surface. Since the light-emitting mirror surface 21 is covered with a plurality of light distributions, 211 ′, and when the light distribution mirrors 211 are convex lens surfaces with positive mirror curvature, the blue light 2 4 light will once again be gathered and distributed, so that the original radiation shape The non-interlaced rays can intersect, and the intersection of each light makes the light emitted by the LED light source more uniform. At the same time, by the function of the light distribution mirrors 211, the light passing through the light emitting mirror surface ′, the perimeter & domain ’can also be distributed and irradiated through the light distribution, thereby eliminating the halo problem caused by the simple convex lens in the past. On the other hand, referring to the seventh figure, the blue light 'emitted from the blue LED chip 11 still excites the yellow fluorescent light contained in the phosphor layer, so that the gate light 25 generates vapor light. The yellow light 25 can also be projected through the light mixing effect of the light distribution mirrors 211, as described above, and a uniform yellow light 25 can be projected. Similarly, the light distribution of the light distribution mirrors 211 can be used to avoid light loss. The generation of halo M277003 around the projected area. Therefore, the blue light emitted by the blue LED grains 11 and the yellow light excited by the yellow phosphor layer are complementary color lights, and white light is generated after mixing. . Please refer to the eighth figure, when the blue light 24 and the yellow light 25 pass through the light distribution and mixing effects of the light distribution mirrors 211, even if the light path emitted by the blue LED die 11 has a longer light path in the phosphor layer (As shown in the first picture, light I4), and when yellowish projected light is generated at the periphery of the led light source 10, the light distribution mirrors 211 are used to deflect a part of the yellow light 25 toward the center of the mirror and refract it. The light 24 mixes light 'and thus produces projected light having a more uniform chromaticity than before. In addition, the concentrated light reflected by the side wall also improves the overall projection brightness of the LED light source. The light-emitting mirror surface 21 ′ of this creative embodiment, in addition to using a mirror surface with a mirror curvature of zero, can also use a convex or concave lens surface with a positive or negative mirror curvature, and the light distribution mirror 211 distributed on the light-emitting mirror surface 21 also It can be a small lens with positive or negative mirror curvature, or a combination of light distribution lenses with positive and negative mirror curvature. Whether it is the light exit mirror surface 21 or the light distribution mirror 211, when a concave lens surface with a negative mirror curvature is used, although the light collected by the light entrance mirror surface 22 is scattered, the scattering effect is also the same as when the convex lens surface is used. The effect is that in addition to homogenizing individual blue light 24 or individual yellow light 25, the two-color light can also be mixed to produce uniform white light. If it is for the purpose of projected lighting, when it is desired to project a project with a concentrated light area and high brightness, a light emitting lens with zero or positive mirror curvature and a light distribution lens with positive & curvature can be used. On the other hand, the light distribution lenses 211 themselves are also small lenses, and the curvatures of the vertical and horizontal directions may be uniform or different. In addition, the arrangement of the light distribution mirrors m may be arranged in a matrix manner, a honeycomb manner, or a concentric circle M277003 on the light emitting mirror surface 21 to form a mirror group. In addition to the functions of light distribution and mixed light, the mirror group can also achieve the purpose of destroying the image emission through the functions of light distribution and mixed light. When the cover is covered with an LED light source by using a general lens or a flat mirror cover, the LED chip and the circuit board to which it is coupled, or even the printed text on it, can be clearly seen on some more delicate devices. Not beautiful. Therefore, through this creation, these LED crystals or text can be distributed and mixed to destroy their original image, so that a blurred and homogeneous image can be presented, and the overall LED light source can be improved. Aesthetics. [Schematic description] The first diagram is a schematic diagram of the light path of the LED light source. The second figure is a schematic diagram of the light path of the LED light source placed in the reflector. The third figure is a three-dimensional schematic diagram of this creative embodiment. The fourth figure is a bottom perspective view of this creative embodiment. The fifth figure is a cross-sectional view of the third figure along line A-A. The sixth diagram is a schematic diagram of the light path illuminated by the LED light source in this creative embodiment. The seventh diagram is another schematic diagram of the light path illuminated by the LED light source in this creative embodiment. The eighth figure is a schematic diagram of light reflection and mixed light after the LED light source is irradiated in this creative embodiment. [Description of main component symbols] 10 LED light source 12 Phosphor powder layer 11 LED die 11 M277003 121 Fluorescence quality 13 Light 14 Light 15 Blue light 16 Yellow light 17 Reflector 18 Light 20 Lens 21 Light-exiting mirror 211 Light distribution lens 22 Incoming light Mirror 24 Blue 25 Yellow
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