M313781 八、新型說明： 【新型所屬之技術領域】 本創作係與一種成像鏡片組（二）之結構有關，更詳 而s之，特別係指一種專被用為行動電話、pda、p〇 CAM、手h電腦· ··等各式電子產品或視訊設備之 微型顯像鏡頭組（包括拍照或顯像功能），惟其主要係藉 -組複合透鏡以修正色差，復再藉由—可據以提高成像曰解 析度之第五鏡片，俾達成最佳成像效果之新穎創作者。 【先前技術】 按，眾所周知，由於行動通訊設備之普及，使現今社 a成乎人手一支行動電話，抑或是隨身配備有手提電腦或 PDA等電子通訊產品，因此，專供此類電子產品以進行 拍照或顯像之相關微型顯像鏡頭組便也大量應運而生，而 本創作即是此等顯像鏡頭組内部之主要成像鏡片組結構。 再且，由於此類電子產品皆係以輕、薄、短、小，以 利於攜行為主要訴求，故其對於成像鏡片組其總體組成之 要求便不能脫出此等相同的要件，簡言之，製造成像鏡片 組之業者為配合電子產品廠商及其特定產品之相關軟、硬 體條件’便必須為其專門研發一組可供與之匹配之成像鏡 片組供其組裝使用，而大多無法為其他產品所一體適用； 因此’此類成像鏡片組誠難以任意舉出某習用前案藉以交 相評比其於各方面之優、劣效能，對此，還請貴審查委 員特予明鑑。 4 M313781 承前所述，正因此類成像鏡片組之組成規格（如總體 規格尺寸或解析度要求等）係受所欲搭配組設之電子產品 所強烈限制，故充其量也只能以鏡片數之多寡做簡單的區 分，諸如二片、三片、四片或五片式成像鏡片組，今，本 創作即是專門針對五片式成像鏡片組所為之創新作品。 【新型内容】 為此，創作人基於上述實情，乃特別針對所謂之五片 式成像鏡片組施予有關修正色差方面之大幅改進，期能在 利用最少空間之情況下，以謀取最佳之成像效果，是為本 創作最主要之設作目的者。 是，其主要係包括有一固定光圈及一光學鏡片組，而 該光學鏡片組則包括有第一、第二、第三、第四及第五鏡 片；尤其，該第三及第四鏡片為一經黏合而成之複合透鏡 ’俾藉此一複合透鏡所特具修正色差之預期效用，之後， 再藉一可據以提高成像解析度之第五鏡片達成最佳成像效 果為其特徵者。 【實施方式】 為使進一步深入暸解本創作之技術手段與結構特徵， 茲配合圖式詳述於后： 首先，如第一圖所示者，其係包括有一固定光圈及 一光學鏡片組20，而該光學鏡片組20則包括有第一鏡片21 第一鏡片22、第二鏡片23、第四鏡片24及第五鏡片25， 5 M313781 其排列順序由物側30至像側40為： 該第一鏡片21朝向物側30為凸面，朝向像側4〇為凹面 ’且至少有一面為非球面； … 該固定光圈10 ; 朝向像側40為凸 该第一鏡片22朝向物側30為一弧面， 面，且至少有一面為非球面； 该第二鏡片23為彎月負透鏡，其朝向像側4〇之曲率半 徑絕對值比朝向物侧3〇之曲率半徑絕對值為大；M313781 VIII. New Description: [New Technology Field] This creation is related to the structure of an imaging lens group (II). More specifically, it refers to a type of mobile phone, pda, p〇CAM. , hand h computer · · · and other electronic products or video equipment miniature imaging lens set (including photo or imaging functions), but mainly by the - group composite lens to correct the chromatic aberration, re-use - based The fifth lens that enhances the resolution of imaging 俾, the novel creator who achieves the best imaging results. [Prior Art] According to the popularization of mobile communication devices, it is known that today’s social mobility is a mobile phone, or it is equipped with electronic communication products such as laptop computers or PDAs. A large number of micro-image lens groups for taking pictures or imaging have also emerged, and this creation is the main imaging lens group structure inside these imaging lens groups. Moreover, since such electronic products are light, thin, short, and small, in order to facilitate the main appeal of the carrying behavior, the requirements for the overall composition of the imaging lens group cannot be detached from the same requirements, in short, In order to meet the soft and hard conditions of electronic product manufacturers and their specific products, the manufacturers of imaging lens sets must develop a set of matching imaging lens sets for their assembly, most of which cannot be All other products are suitable for use; therefore, it is difficult for such imaging lens group to arbitrarily cite any pre-existing case to compare and evaluate its superiority and inferiority in all aspects. 4 M313781 As mentioned above, the composition specifications (such as the overall size or resolution requirements) of the imaging lens group are strongly restricted by the electronic products that are desired to be combined, so at best, the number of lenses can only be used. To make a simple distinction, such as two, three, four or five-piece imaging lens sets, today, this creation is specifically for the five-piece imaging lens group. [New content] To this end, the creator based on the above facts, in particular for the so-called five-piece imaging lens group to provide significant improvements in the correction of chromatic aberration, in the case of using the least space for optimal imaging The effect is the main purpose of this creation. Yes, the main method comprises a fixed aperture and an optical lens set, and the optical lens set comprises first, second, third, fourth and fifth lenses; in particular, the third and fourth lenses are The composite lens formed by the combination of the composite lens has a specific effect of correcting the chromatic aberration, and then it is characterized by a fifth lens which can improve the imaging resolution to achieve the best imaging effect. [Embodiment] In order to further understand the technical means and structural features of the present invention, the drawings are detailed later: First, as shown in the first figure, the system includes a fixed aperture and an optical lens group 20, The optical lens set 20 includes a first lens 21, a first lens 22, a second lens 23, a fourth lens 24, and a fifth lens 25. 5 M313781 is arranged in order from the object side 30 to the image side 40: A lens 21 is convex toward the object side 30, a concave surface toward the image side 4〇, and at least one surface is aspherical surface; the fixed aperture 10 is convex toward the image side 40, and the first lens 22 is an arc toward the object side 30. The surface, the surface, and at least one of the surfaces are aspherical; the second lens 23 is a meniscus negative lens, and the absolute value of the radius of curvature toward the image side 4〇 is larger than the absolute value of the radius of curvature toward the object side 3〇;
該第四鏡片24為正透鏡，其朝向像側4〇為一弧面，且 其朝向像側40之曲率半徑絕對值比朝向物側3〇之曲率半徑 絕對值為小者。 1 該第五鏡片25朝向物侧30為凹面，朝向像侧4〇為凸面 ，且至少有一面為非球面； 又，前述之第二鏡片23及第四鏡片24為-經黏合而成 之複合透鏡者。 再且’此成像鏡片組又必須滿足以下條件： 0·9< 丨 fl 丨 / 丨 f 丨 <1·7， 0·4< | f2 | / | f | <ι·2， 4< I f5 I / I f I <20 ; 其中，丨fl I為第一鏡片21之焦距值，I f2丨為第二 鏡片22之焦距值，丨f5丨為第五鏡片25之焦距值，丨f丨 為光學鏡片組20之焦距值。 其第二鏡片22朝物面所指之弧面可為凸面或凹面者。 其第四鏡片24朝像面所指之弧面也可為凸面或凹面者。 6 M313781 是，本創作透過以上各鏡片其相互間之適切焦距比值 ，並配合利用複合透鏡所特具修正色差之預期效用，以及 利用第五鏡片25以提尚其總體成像解析度，進而達成最佳 成像效果為其特徵者。 當然，在第五鏡片25之後乃為一據片26及一成像鏡片 27，惟此祕式雜綱之_必魏μ，誠縣創 特徵所在，故將不予贅述，還請鲸察。 請前不僅纽於市售同類 『新穎』、『進步』的實、 請要件’理當獲得專利法The fourth lens 24 is a positive lens having a curved surface toward the image side 4, and the absolute value of the radius of curvature toward the image side 40 is smaller than the absolute value of the radius of curvature toward the object side 3〇. 1 The fifth lens 25 has a concave surface toward the object side 30, a convex surface toward the image side 4〇, and at least one surface is aspherical; and the second lens 23 and the fourth lens 24 are bonded to each other. Lens. Furthermore, 'this imaging lens set must meet the following conditions: 0·9< 丨fl 丨/ 丨f 丨<1·7, 0·4< | f2 | / | f | <ι·2, 4< I F5 I / I f I <20; wherein 丨fl I is the focal length value of the first lens 21, I f2 丨 is the focal length value of the second lens 22, and 丨f5 丨 is the focal length value of the fifth lens 25, 丨f丨 is the focal length value of the optical lens group 20. The curved surface of the second lens 22 facing the object surface may be convex or concave. The curved surface of the fourth lens 24 toward the image plane may also be convex or concave. 6 M313781 Yes, this creation uses the appropriate focal length ratio of each of the above lenses, and cooperates with the expected effect of using the composite lens to correct the chromatic aberration, and uses the fifth lens 25 to improve the overall imaging resolution, thereby achieving the most Good imaging effects are characteristic. Of course, after the fifth lens 25 is a piece of film 26 and an imaging lens 27, but this secret type of _ _ Wei Wei, Chengxian creative features, so will not repeat, but also whale inspection. Please don't just buy the same kind of "new" and "progressive" in the market.
綜觀以上所言，本創作其申 物品及相關刊物文獻，且已具備 用價值，誠已符合新型專利之申 之保護，爰依法提出申請。 【圖式簡單說明】 第一圖：係本創作之平面簡示圖。Looking at the above, this creation of the application and related publications literature, and has the value of use, has been in line with the protection of the application of the new patent, and filed an application according to law. [Simple description of the diagram] The first picture: a schematic diagram of the plane of the creation.
【主要元件符號說明】 1〇:固定光圈 22:第二鏡片 25:第五鏡片 20 23 26 光學鏡片組21:第一鏡片 第三鏡片24:第四鏡片 據片打:成像鏡片3〇:物倒[Main component symbol description] 1〇: fixed aperture 22: second lens 25: fifth lens 20 23 26 optical lens group 21: first lens third lens 24: fourth lens data: imaging lens 3: object inverted