201102679 六、發明說明： 【發明所屬之技術領域】 本發明有關於一種光學模組，尤指一種具有複數折射層之光 學模組，可增加成像系統於低照度時的影像分辨力。 【先前技術】 習知成像系統如第一圖所示，一成像系統1包括一光學鏡頭 10及一感光元件12，藉由光學鏡頭10將外界的光線導向感光元 件12上，感光元件12利用光電效應將所偵測到的光轉換成電訊 號，再透過放大與解碼成數位資料，以二維陣列方式記錄資料， •得到完整的影像畫面。 ' 其中感光元件12如電荷接合元件（charge C0Upiecj device, CCD )或互補式金氧半導體（compiementary⑽说丨〇xi(je semiconductor，CMOS )，其中CMOS相較於CCD其優勢在於成 本低、耗電量小及便於製造，可以與影像處理電路處於同一個晶 片上，因此具有咼整合度的特性，然而由於製程的限制，CM〇s 在每一個晝素120上具有可吸收光的感光受體121以及不吸收光 的放大器（圖未示)與A/D轉換電路(圖未示），其中感光受體121面201102679 VI. Description of the Invention: [Technical Field] The present invention relates to an optical module, and more particularly to an optical module having a plurality of refractive layers, which can increase the image resolution of an imaging system in low illumination. [Prior Art] As shown in the first figure, an imaging system 1 includes an optical lens 10 and a photosensitive element 12, and the external light is guided to the photosensitive element 12 by the optical lens 10, and the photosensitive element 12 utilizes photoelectric The effect converts the detected light into an electrical signal, and then amplifies and decodes it into digital data, records the data in a two-dimensional array, and obtains a complete image. The photosensitive element 12 is, for example, a charge-clamping device (CCD) or a complementary metal-oxygen semiconductor (compiementary (10) 丨〇 xi (je semiconductor, CMOS), wherein CMOS has advantages over CCD in low cost and power consumption. Small and easy to manufacture, it can be on the same wafer as the image processing circuit, so it has the characteristics of 咼 integration. However, due to the limitation of the process, CM〇s has a photoreceptor 121 that absorbs light on each of the halogens 120 and An amplifier that does not absorb light (not shown) and an A/D conversion circuit (not shown) in which the photoreceptor 121 faces
積佔整個畫素120的比例為Fill Factor，也就是在每一個苎素12〇 中電路部份為無效感紋域122，使通過光學鏡頭丨、並非 100%被轉換成電能，因此CMOS感光效率低於CCD，影像分辨 力亦較低。 在光線不足的情況下，即健度_境下，微·影像訊號 與雜訊均被混合放大，造成影像失真現象，傳賊善方法有外加 輔助照明，如感應式探紐或紅外線光崎，l_a3度的不足， 然而外加輔助照明不僅需要耗費較多的電能，也義外的設備增 加了严Ϊ二Ϊ使=外線峨照明還會因此喪失成像的色彩。 另外’也可改進感光元件的積體電路設計以增加驗秦，然而 3 201102679 改變積體電路的設雅為嶋且複雜，亦提高了製造成本。 【發明内容】 、本發明所欲解決的技術問題，在於提供—種辟模組 決習知低照度時成像系統之雜訊比大的問題，此本發明之 係增加感光元件侧到光的機率，避免因低照度而造成影像失真、。 向的^於此’本發明提供—種光學模組，以達到調整入射光指 ，了^上述技術問題’本發明之—技術方案係提供一種光 W、、'且’適驗成像祕’其巾每—光學元件包括—成像透 兀及-折概鮮7〇 ’雜透鮮讀折概 且 像透鏡單元具有一第一上表面及一第一下表面;成 及？數第二折射層’且折射透鏡單元 第一上表面及—第—下表面，第二上表面與第—下表面接合。 =人射歧第-上表面人射時，經由雜透鏡單元的一次 =再經由折射透鏡單元裡複數第—折射層與複數第二折射 ^人折射，使光線較不易發散到光學元件外，並調整 & 向，使入射光導向感光受體。 π尤的導 藉此，透過光學模組，因而可以達到於低照 體接收到入射光的機會。如此，可以解決感光受體“ft ::制而降低感光元件感光的效率，且得以減少影像失= 以上的概述與接下來的詳細說明皆為示範性質 步說明本發·申請專利。而有關本發明的其他目的鱗 點，將在後續的說明與圖示加以闡述。 >、· 4 201102679. 【實施方式】 本發明係以複數光學元件，供成像純調整人射光的導 向，以達到增加感光元件感光效率的效果。 為了提供更詳盡的說明與解釋，以下將配合方塊圖及示 意圖針對本發明進行解說，以便更為明確而清楚地揭露本發 明所使用的技術及手段’以職本發日㈣具有的優點及其所 能達成的功效。 —明餐考第-圖’為本發明所提供的—種成像线之一實施例 之示意圖。如第二圖所示，—成像系統2包括—感光元件22及一 光學模組20。其中感光元件22具有複數畫素22〇，每一個畫素 22〇具有感光文體221及無效感光區域223 ;光學模組2〇包括複 數光學元件2〇ai、20¾..氣’該些複數光學元件施i、施2取 彼此緊密排列’藉由複數光學元件2叫、2如為調整入射光 的指向，其中感光受體221與至少一光學元件相對應，以增加入 射光進入感光受體221的機會。 為了更詳細說明每-個光學元件的結構，請配合參考第三A 圖’為本發明所提供的-種光學元件之—實_之麻圖。如第 三本發明之一光學元件3〇包括一成像透鏡單元31及 ’成像透鏡單元31與折射透鏡單元％連接。 其中成像透鏡單元31具有一第一上表面311及一第一下表面 313，—折射透鏡單元32具有一第二上表面321及一第二下表面 323二f由第二上表* 321與第一下表面313接合來達成連接成像 透鏡早兀31與折射透鏡單元32,其中第一上表面3ιι及第一下 面313可為凹面或凸面，即第一上表面311及第—下表面阳i 3^3一ΓίΐΓ而另一個為凸面，或第一上表面311及第一下表面 1面’或第一上表面311及第一下表面313兩者皆為 凸，第一上表面321及第二下表面323可為凹面或凸面，即第 201102679 二上表面321及第-下表面323其卜個為凹面而另一個為凸 面’或第二上表面321及第二下表面323兩者皆為凹面，或第二 上表面321及第二下表面323兩者皆為凸面，實際實施時第二上 表面321與第-下表面313其中一個為凸面另一個為凹面且可互 相緊密接合無縫隙即可’如第三八圖所示，第一下表面313為凸 面而第二上表面321為凹面，其曲率可為球面、非球面或抛物面。 其中成像透鏡單元31具有第一光軸(圖未標），第一光轴為第 -上表面311 ό勺曲率中心與第一下表面313的曲率中心所連成的 :條軸，·折射透鏡單元32具有第二光軸(圖未標），第二光轴為第 上表面321的曲率中心與第一下表面323的曲率中心所連成的籲 一條軸，且第一光軸與第二光軸形成在同一線上。 、其中f像透鏡單元31與折射透鏡單元32皆為透光材質，且 成像透鏡單元31的材質與折射透鏡單元32的材質相|，即具有 不同山的介電質，如塑膠（Plastic)、壓克力（Acrylic):玻璃⑽二、 聚碳酸酯（Polycarbonate )、聚曱基丙烯酸甲酯（p〇ly methyl-methacrylate，PMMA)或聚對二曱基矽氧烷 (poly-dimethylsiloxane，PDMS)。 復參考第二A圖’其中折射透鏡單元32包括複數第一折射層 327ai、327a2...327an 及複數第二折射層 32杌、32%2 32%，且· 複數第-折射層327a,、327a2...327an的材質與複數第二折射層 329a!、329a2，..329an的材質相異，具有不同的介電質，即折射率 不同，其中每-個第-折射層具有第一内側面(圖未標)及第一外侧· 面(圖未標）’每一個第二折射層具有第二内側面(圖未標)及第二外-侧面(圖未標）’其中第-内側面及第一外側面可為凹面或凸面，第 一内側面及第二外側面可為凹面或凸面，實際實施時第二上表面 321為凹面而第-下表面313為凸面且可互相緊密接合無縫隙即 可，其曲率可為球面、非球面或拋物面。藉由第二内側面與第一 6 201102679 外側面接合，使該些第一折射層327ai、327a2...327an與該些第二 折射層329a丨、329a2."329an互相交疊。 —— ★其中每-第-折射層具有第三光軸(圖未標），第三光轴為每一 第-折射層_側面的曲率中心與每—第__折射層的外側面的曲 率中心所連成的-條軸；每一第二折射層具有第四光軸(圖未標）， 第四光軸絲-第二折射層的内側面的曲率中心與第二折射 外側面的曲率中心所連成的—條軸，且第三光軸與第四光轴ς 在同一線上，且與第二光軸在同一線上。 光學模組2 0的製造方法可_微影製程製作出各種不同曲率 的母模，利用鑄才莫、壓印及熱轉印來製作出具有複數成像透鏡 凡31及複數折射透鏡單元32，藉由設計該些第一折射層、 327a2...327an的每-個第—外側面與第—内側面與該些第二折射 層329a,、329a2...329an的第二外側面與第二内側面的曲率來調整 3 = ίΓ路徑，使打在其中之一光學元件之人射光保持在該 先子兀件巾折射而不會偏折卿近的光學元件，並增加人射光進 2對應之感光叉體221的機會，經由感光受體221將入射光轉 為電訊號’再由無效感光區域223之電路將電訊號放大。 請參考第三B圖’為本發明所提供的一種光學元 例之光執跡示意圖。如第二R闻私-^ , 貫 30$笛一！々弟—Β圖所不，當入射光33從光學元件 減 表面311人射時，人射光經城像透鏡單元31的-次 射透鏡單元32的多次折射，使入射光33被限制 在先予兀件30内’較不易發散到光學元件外。 表面第二上ί面3U、第一下表面313、第二上表面321及第二下 〜sn力尺寸及幾何形狀皆相同，實際實施時尺寸大小約 實幾何形狀可為六角形如第四圖所示，此僅為其中一種 本^心他形狀或尺寸皆可隨使用需求做設計，第四圖為 " ‘組之一實施例之上視圖，本發明之光學模組40包 7 201102679 括複數光學元件40,、4〇2._.40n，該些光學元件4〇ι、4〇2 4〇n彼此 緊密排列’為了避免入射光在單一光學元件内部偏折到鄰 學元件，該些光學元件4〇1、叫為之間的間隙佩包括一光阻 隔層42，即間隙40b填滿了吸光物質或不透光物質。 請參考第五圖，為本發明之光學模組之另一實施例之上視 圖’如第五圖所示，本發明之光學模組5〇包括複數具有圓形的光 學元件50丨、502…50n ’該些光學元件5〇1、5〇2. 5〇n彼此以六角形 排列作最緊密排列’該些光學元件5〇1、5〇2萬之間的間隙处 包括一光阻隔層52，即間隙5〇b填滿吸光物質或不透光物質；/ 參考第六圖，為本發明之光學模組之另一實施例之上視圖，如第馨 六圖所示，本發明之光學模組6〇包括複數具有三角形的光學元件 6〇丨、6〇2…60n，該些光學元件60丨、6〇2 6〇n彼此緊密排列該些 光學元件6(^、6〇2..·60η之間的間隙6〇b包括一光阻隔層幻，即& 隙6〇b填滿吸光物質或不透光物質。 請參考第七A圖，為本發明所提供的一種光學元件之一另實 施例之剖面圖。如第七A圖所示，本發明之一光學元件3〇，包括一 成像，鏡單元31，及-折射透鏡單元32,，成像透鏡單元31,與折射 透鏡單元32’連接。其中成像透鏡單元31，具有一第一上表面Μ。 及一第-下表面犯’，折射透鏡單元具有一第二上表面训及籲 一第二下表面3231’藉由第二上表面321，與第一下表面313，接合來 連接成像透鏡單元31，與折射透鏡單元32ι ;折射透鏡單元％，包括 複數第-折射層通丨，、327C..327V與複數第二折射層329<、· 329a2’...329an•。其與第三A圖的結構大致相同，其差異在於第七 A圖中第二上表面321’為凸面而第一下表面313，為凹面且可互相 緊密接合無縫隙，其曲率可為球面、非球面或拋物面。 請參考第七B圖，為本發明所提供的一種光學元件之另一實 施例之光軌跡示賴。如第七B圖所示，當人射光33，從光學元件 8 201102679 在光學娜州，财峨使顧33,被限制 數，方叙作法，配合感光元件的晝素個 日字’可知當人射光從光學模組之第2表面3 的多==1鏡單元的一次折射，再經由折射透鏡單元 ::個?學元件内，較不易發散到 光材曾#不4 予模、'且中的每一個光學元件之間加上吸 折到鄰近#^W 5 ’使人射光打人單——個光學元件後不會偏 ^到鄰近的先學耕，以調整人射光的導向，增加人射 題’以解決習知低照麟成像系統之雜訊比大的^ ’’、吏用額外辅助光源，進而增加影像分辨力。 作為選ϊ不同光學元件的材質可用來過濾不同光譜， 更可以在同—光學模組裡包含具有不同光譜選 :此之複數光學疋件，使擷取單一影像時過滤出不同光譜 加使用上的彈性。 曰 准上iC所揭路之圖式及說gg，僅為本發明之實施例而已，然 其並義靖定本發明，任何^此技藝者，當可依據上述之說 明做各種之更動制飾，如有其他符合本發明之精神與未實質改 變本發明之技術手段者，冑屬本發明所涵蓋健之範圍。 【圖式簡單說明】 第一圖為習知成像系統之示意圖； 第二圖為本發明之成像系統之一實施例之示意圖； 第二A圖為本發明之光學元件之一實施例之剖面圖； ，二B圖為本發明之光學元件之一實施例之光執跡示意圖； 第四圖為本發明之光學模組之一實施例之上視圖； 201102679 第五圖為本發明之光學模組之另一實施例之上視圖； 第六圖為本發明之光學模組之另一實施例之上視圖； 第七A圖為本發明之光學元件之另一實施例之剖面圖；及 第七B圖為本發明之光學元件之一另實施例之光軌跡示意 圖。 【主要元件符號說明】 習知： 1成像系統 10光學鏡頭 12感光元件 120畫素 121感光受體 122無效感光區域 本發明： 2成像系統 20光學模組 20a〗、20a2·..數光學元件 22感光元件 220畫素 221感光受體 223無效感光區域 40、50、60光學模組 30、30'、40丨、402...40n、50!、502...50n、601、602...60n 光學元 件 31、31’成像透鏡單元 311、31Γ第一上表面 201102679. 313、313'第一下表面 32、 32’折射透鏡單元 321、321'第二上表面 323、323’第二下表面 327a】、327a2...327an，327a丨’、327a2’...327an’第一折射層 329a丨、329a2...329an，329a^、329a2’...329an'第二折射層 33、 33’入射光 40b、50b、60b 間隙The ratio of the total pixel 120 is Fill Factor, that is, the circuit portion of each pixel 12 is ineffective, so that the optical lens is not 100% converted into electric energy, so the CMOS efficiency is Below the CCD, the image resolution is also low. In the case of insufficient light, that is, the health degree _, micro-image signal and noise are mixed and amplified, resulting in image distortion, and the thief-friendly method has additional auxiliary illumination, such as inductive probe or infrared light, l_a3 Insufficient degree, however, the addition of auxiliary lighting not only requires more power, but also the equipment outside the home has increased the severity of the image. In addition, the integrated circuit design of the photosensitive element can be improved to increase the Qin, however, 3 201102679 Changing the integrated circuit is complicated and complicated, and the manufacturing cost is also increased. SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide a method for solving the problem that the noise ratio of the imaging system is large when the module is low-illuminated, and the invention increases the probability of the side of the photosensitive element to light. To avoid image distortion caused by low illumination. The present invention provides an optical module for adjusting the incident light finger, and the above technical problem is provided by the present invention. The technical solution provides a light W, 'and 'suitable imaging secret' Each of the optical components includes - an image transmissive and a pleats - and the image lens unit has a first upper surface and a first lower surface; The second refractive layer 'and the first upper surface and the first lower surface of the refractive lens unit are joined to the first lower surface. = when the human-fission-upper surface person shoots, the light passing through the lens unit is once again refracted by the plurality of first-refracting layers and the plurality of second-refracting elements in the refractive lens unit, so that the light is less likely to diverge outside the optical element, and Adjust &litude to direct incident light to the photoreceptor. By means of the optical module, the opportunity for the low-illumination to receive the incident light can be achieved. In this way, the sensitization of the photoreceptor can be solved, and the efficiency of sensitization of the photosensitive element can be reduced, and the image loss can be reduced. The above summary and the following detailed description are exemplary steps to explain the present invention and apply for a patent. Other points of interest of the invention will be explained in the following description and illustrations. >, 4 201102679. [Embodiment] The present invention is a plurality of optical elements for imaging pure adjustment of human light to achieve increased sensitivity. The effect of the sensitivities of the components. In order to provide a more detailed description and explanation, the present invention will be explained in conjunction with the block diagrams and schematic diagrams in order to more clearly and clearly disclose the techniques and means used by the present invention. (4) Having the advantages and the efficacies that can be achieved. —— 明明考-图' is a schematic diagram of one embodiment of the imaging line provided by the present invention. As shown in the second figure, the imaging system 2 includes - The photosensitive element 22 and an optical module 20. The photosensitive element 22 has a plurality of pixels 22, each of which has a photosensitive body 221 and an ineffective photosensitive area 223. The optical module 2 includes a plurality of optical elements 2〇ai, 203⁄4.. gas 'the plurality of optical elements are applied, and the two are closely arranged with each other'. By the plurality of optical elements 2, 2, for adjusting the direction of incident light Wherein the photoreceptor 221 corresponds to at least one optical element to increase the chance of incident light entering the photoreceptor 221. To explain the structure of each optical element in more detail, please refer to the third A drawing 'as the present invention. An optical element of the optical element is provided. The optical element 3 of the third invention comprises an imaging lens unit 31 and an 'imaging lens unit 31 connected to the refractive lens unit %. The imaging lens unit 31 has a first upper surface 311 and a first lower surface 313. The refractive lens unit 32 has a second upper surface 321 and a second lower surface 323. The second upper surface 321 is joined to the first lower surface 313 by the second upper surface*321. Aimating the imaging lens early 31 and the refractive lens unit 32, wherein the first upper surface 3 ι and the first lower surface 313 may be concave or convex, that is, the first upper surface 311 and the first lower surface yang i 3^3 Γ ΐΓ ΐΓ One is convex, or first The upper surface 311 and the first lower surface 1 surface ′ or the first upper surface 311 and the first lower surface 313 are both convex, and the first upper surface 321 and the second lower surface 323 may be concave or convex, that is, 201102679 The upper surface 321 and the first lower surface 323 are concave and the other convex surface or the second upper surface 321 and the second lower surface 323 are both concave surfaces, or the second upper surface 321 and the second lower surface 323 Both of them are convex. In actual implementation, the second upper surface 321 and the first lower surface 313 are convex and the other is concave and can be tightly joined to each other without gaps. As shown in FIG. 8 , the first lower surface 313 is a convex surface and the second upper surface 321 is a concave surface, and the curvature thereof may be a spherical surface, an aspherical surface or a paraboloid. The imaging lens unit 31 has a first optical axis (not labeled), and the first optical axis is a first-up surface 311. The center of curvature of the scoop is connected with the center of curvature of the first lower surface 313: a strip axis, a refractive lens The unit 32 has a second optical axis (not labeled), and the second optical axis is an axis connecting the center of curvature of the upper surface 321 and the center of curvature of the first lower surface 323, and the first optical axis and the second optical axis The optical axes are formed on the same line. The f-image lens unit 31 and the refractive lens unit 32 are both light transmissive materials, and the material of the imaging lens unit 31 is opposite to the material of the refractive lens unit 32, that is, having different dielectric properties of the mountain, such as plastic, Acrylic: glass (10) II, polycarbonate (polycarbonate), p〇ly methyl-methacrylate (PMMA) or poly-dimethylsiloxane (PDMS) . Referring to FIG. 2A', the refractive lens unit 32 includes a plurality of first refractive layers 327ai, 327a2...327an and a plurality of second refractive layers 32A, 32% 2 32%, and a plurality of first refractive layers 327a, The material of 327a2...327an is different from the material of the plurality of second refractive layers 329a!, 329a2, .. 329an, and has different dielectric properties, that is, different refractive indexes, wherein each of the first-refractive layers has the first inner portion The side surface (not shown) and the first outer surface (not shown) each of the second refractive layers has a second inner side (not labeled) and a second outer side (not shown) The side surface and the first outer side surface may be concave or convex. The first inner side surface and the second outer side surface may be concave or convex. In actual implementation, the second upper surface 321 is concave and the first lower surface 313 is convex and can be closely coupled to each other. The seamless gap is sufficient, and the curvature can be spherical, aspherical or parabolic. The first refractive layers 327ai, 327a2...327an and the second refractive layers 329a, 329a2. "329an overlap each other by bonding the second inner side surface to the first side surface of the first 201102679. ——wherein each per-first refractive layer has a third optical axis (not labeled), and the third optical axis is the curvature center of each refracting layer _ side and the curvature of the outer side of each __ _ _ refracting layer a shaft axis connected to the center; each second refractive layer has a fourth optical axis (not shown), a curvature center of the inner side of the fourth optical axis-second refractive layer and a curvature of the second refractive outer side The center is connected to a strip axis, and the third optical axis is on the same line as the fourth optical axis , and is on the same line as the second optical axis. The manufacturing method of the optical module 20 can be used to produce a mother mold of various curvatures by using a lithography process, and a composite imaging lens 31 and a complex refractive lens unit 32 can be fabricated by using a mold, an imprint, and a thermal transfer. By designing each of the first refractive layers, 327a2...327an, the first outer side and the first inner side and the second outer side and second of the second refractive layers 329a, 329a2...329an The curvature of the inner side adjusts the path of 3 = Γ, so that the person who hits one of the optical elements is kept in the refractory of the nipple without eccentricity, and increases the amount of light emitted by the person. The chance of the photosensitive fork 221 is to convert the incident light into an electrical signal via the photoreceptor 221' and then amplify the electrical signal by the circuit of the inactive photosensitive region 223. Please refer to FIG. 3B for a light trace diagram of an optical element provided by the present invention. Such as the second R smell private - ^, through 30 $ flute one! 々 Β Β Β Β , , , , 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当 当The inside of the member 30 is less likely to diverge outside the optical component. The surface of the second upper surface 3U, the first lower surface 313, the second upper surface 321 and the second lower-sn force are the same in size and geometry. In actual implementation, the size may be hexagonal as shown in the fourth figure. As shown, this is only one of them. The shape or size can be designed according to the needs of use. The fourth figure is a top view of one of the embodiments of the group. The optical module 40 of the present invention includes 7 201102679 a plurality of optical elements 40, 4〇2._.40n, the optical elements 4〇, 4〇2 4〇n are closely arranged with each other 'to avoid incident light being deflected inside the single optical element to the adjacent element, The gap between the optical elements 4, 1, and the gap includes a light blocking layer 42, that is, the gap 40b is filled with a light absorbing material or an opaque material. Please refer to the fifth figure, which is a top view of another embodiment of the optical module of the present invention. As shown in the fifth figure, the optical module 5 of the present invention includes a plurality of optical elements 50 丨, 502 having a circular shape. 50n 'The optical elements 5〇1, 5〇2. 5〇n are arranged in a hexagonal arrangement for the closest arrangement. The gap between the optical elements 5〇1, 5〇20,000 includes a light blocking layer 52. , that is, the gap 5 〇 b is filled with the light absorbing material or the opaque material; / refer to the sixth figure, which is a top view of another embodiment of the optical module of the present invention, as shown in the sixth embodiment, the optical of the present invention The module 6A includes a plurality of optical elements 6〇丨, 6〇2...60n having a triangular shape, and the optical elements 60丨, 6〇2 6〇n closely arrange the optical elements 6 (^, 6〇2.. The gap 6〇b between 60η includes a light-blocking layer illusion, that is, the gap 6〇b is filled with the light-absorbing substance or the opaque substance. Referring to FIG. 7A, an optical element provided by the present invention is provided. A cross-sectional view of another embodiment. As shown in FIG. 7A, an optical component 3 of the present invention includes an image forming unit, a mirror unit 31, and a folding unit. The lens unit 32, the imaging lens unit 31, is coupled to the refractive lens unit 32'. The imaging lens unit 31 has a first upper surface Μ and a first-lower surface, and the refractive lens unit has a second upper surface. And a second lower surface 3231' is joined to the first lower surface 313 by the second upper surface 321 to join the imaging lens unit 31, and the refractive lens unit 32i; the refractive lens unit%, including the plurality of first-refractive layers Bypass, 327C..327V and the plural second refractive layer 329<, · 329a2'...329an•. It is substantially the same as the structure of the third A picture, and the difference is the second upper surface 321 in the seventh A picture. The first lower surface 313 is a convex surface and is concave and can be closely joined to each other without a gap, and the curvature thereof can be a spherical surface, an aspherical surface or a paraboloid. Referring to FIG. 7B, another optical component according to the present invention is provided. The light trajectory of the embodiment is as shown in Figure VII. When the person shoots light 33, from the optical element 8 201102679 in the optical Nazhou, the financial 峨 顾 33, the number of restrictions, the square narration, the 感光 of the photosensitive element A Japanese word 'knows that when people shoot light From the first refraction of the second surface 3 of the optical module 3, the primary refraction of the mirror unit, and then through the refractive lens unit: the element is less likely to diverge to the optical material. Each optical element is added with a suction to the adjacent #^W 5 'to make a person hit the light alone - an optical element will not be biased to the adjacent first learning, to adjust the direction of the human light, increase the shot The problem is to solve the problem of the low noise ratio of the conventional low-light imaging system, and to use additional auxiliary light sources to increase the image resolution. As a material for selecting different optical components, it can be used to filter different spectra. The same-optical module contains different spectral options: the complex optical components, which filter out the different spectra and the elasticity of use when capturing a single image. The drawings and ggs of the roads disclosed by iC are only examples of the present invention, and they are intended to be invented by the present invention. Anyone skilled in the art may make various modifications according to the above description. The scope of the present invention is covered by the spirit and scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a schematic view of a conventional imaging system; the second figure is a schematic view of an embodiment of the imaging system of the present invention; and the second A is a cross-sectional view of an embodiment of the optical component of the present invention. 2B is a schematic view of a light trace of an embodiment of an optical component of the present invention; FIG. 4 is a top view of an embodiment of an optical module of the present invention; 201102679 Figure 6 is a top view of another embodiment of the optical module of the present invention; Figure 7A is a cross-sectional view of another embodiment of the optical component of the present invention; B is a schematic view of a light trajectory of another embodiment of the optical component of the present invention. [Main component symbol description] Conventional: 1 imaging system 10 optical lens 12 photosensitive element 120 pixel 121 photoreceptor 122 invalid photosensitive area The present invention: 2 imaging system 20 optical module 20a, 20a2 ·.. optical element 22 Photosensitive element 220 pixel 221 photoreceptor 223 invalid photosensitive area 40, 50, 60 optical module 30, 30', 40 丨, 402 ... 40n, 50!, 502 ... 50n, 601, 602... 60n optical element 31, 31' imaging lens unit 311, 31 Γ first upper surface 201102679. 313, 313 'first lower surface 32, 32' refractive lens unit 321, 321 'second upper surface 323, 323 ' second lower surface 327a], 327a2...327an, 327a丨', 327a2'...327an' first refractive layer 329a, 329a2...329an, 329a^, 329a2'...329an' second refractive layer 33, 33 'Ins incident light 40b, 50b, 60b clearance