M360373 五、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有關’更詳而言之，其係 提供用於一般日常生活常見之數位相機、手提電腦、行動 電話、個人數位助理（PDA)、、、等等之電子產品或視 訊設備之微型顯像鏡頭組（包括拍照或顯像功能）使用之 成像鏡片組所作研發之結構創作。 【先前技術】 按以隨著科技不斷研發進步，以電子通訊產業而言， 這幾年來更是突飛猛進與創新’使得諸如數位相機、行動 電話、手提電腦、個人數位助理（PDA)、、、等電子通 訊產品，幾乎隨處可見，而專供該等電子通訊產品用作為 拍照或顯像使用之相關微型顯像鏡頭組即因應而生，其中 ，成像鏡片組即是微型顯像鏡頭組中最重要之構件。 加上，使用者對上述產品之品質、方便性及實用性等 要求更是與曰遽增’除了期盼產品要能夠提供輕、薄、短 、小來方便攜帶外，更希望在木失產品品f要求下，其售 價亦能大眾化、普及化；因此，冑了達成前述要求，如 對作為微㈣隸肋中最重要構件之成像鏡片組，使复 能夠就結構上作簡化設計以降低製造成本、減少像差並提 升.成像品質、體積輕薄微小化等訴求，即是成像鏡片組之 製造業者所急於追求改進與創作之處。 【新型内容】 因此’本創作之主要目的乃係特別針對所謂四片式成 M360373 像鏡片組施以有關夕4士 h i i 虿關之結構創作，期使達到結構 製造成本、減少像差以提升成像品f、體積輕低 鏡片Γ二達到上述之目的，本創作乃係提供-種成像 鏡片組’係包括有一光園為伞 圈及先學鏡片組’而該光學 係包括：第一鏡片、篦-锫a 墙一 ’且 第一鏡片、苐三鏡片及第四鏡片A中， 該第-鏡片朝向物側為呈球面或或非球面之凸面，朝 I貝=呈球面或非球面之弧面；該L鏡片朝向物側為呈 球面或非球面之弧面’朝向像側為呈球面或非球面之凹 面；該第三鏡片朝向物側為呈非球面之凹面，朝向像側為 呈非球面之凸面；該笫四於μ έ 弟四鏡片朝向物側為呈非球面之凹 面，朝向像側亦為呈非球面之弧面者。 【實施方式】 _餘下’兹再就本案之結構特徵暨操作等項，以配 不說明方式，謹述於后，俾提供審查參閱。 首先，請參閱第-圖所示，係本創作提供一較佳實施 例之成像鏡片組，係包括有一光圈2及光學鏡片組3，而 該光學鏡片組3係包括：第一锖K q , 乐蜆片31、第二鏡片32、 第三鏡片33、第四鏡片34，苴姑5丨山 4 具排列由物側4至像側π； 依序為： 光圈2。 第一鏡片3 1 ，其朝向物側4 & 巧1則4為呈球面或或非球面之 凸面3 1 1，朝向像惻5為呈破而十也丄 至衣面或非球面之弧面3 1 2。 第一鏡片3 2，其朝向物側4 Α 側4為呈球面或非球面之弧 面3 2 1 ，朝向像側5為呈球面每 非球面之凹面3 2 2。 .M360373 第三鏡片3 3，其朝向物侧4為呈非球面之凹面3 3 1 ’朝向像侧5亦為呈非球面之凸面3 3 2 ; 第四鏡片3 4，其朝向物側4為呈非球面之凹面3 4 1 ’朝向像側5亦為呈非球面之弧面3 4 2。 且’該成像鏡片組需滿足下列條件： ⑴ 〇·3< | f l/f | < 1. 2 〇. 3< | f2/f I < 1. 2 ο. 2< I f3/f I < 1 〇.2< I f4/f 1 < 1 其中’ f為整個成像鏡片組之有效焦距長度，f 1為第 一鏡片3 1之有效焦距長度，f 2為第二鏡片3 2之有效焦 距長度’ f3為第三鏡片3 3之有效焦距長度，f4為第四鏡 片3 4之有效焦距長度。 (2) 50<Vdl< 60 20<Vd2< 30 50<Vd3< 60 50<Vd4< 60 其中’ Vdl為第一鏡片3 1之色散率，Vd2為第二鏡片 3 2之色散率，Vd3為第三鏡片3 3之色散率，Vd4為第四 鏡片34之色散率；而色散率（（115口6犷546)又稱阿貝數 (Abbe Number ) ° (3) 2. 4<Fno. < 3. 2 其中，Fno.為光圈2 (4) 0. 2< | bf/f | < 0. 5 M360373 其_，bf為第四鏡片3 4朝向像惻5之狐面3 & 2 像側'5之距離，f為成像鏡片組之有效焦距長度。 (5) 0. 4< | d/f | <1.2 其中，d為第一鏡片3 1朝向物側4之凸面3 1 1 第四鏡片3 4朝向像側5之弧面3 4 2間之總厚度，f 整個成像鏡片組之有效焦距長度。 進而藉由上述鏡片之結構創作’即可將其整體結構 以簡化並透過以上各鏡片纟相互間之㉟當有效焦距距2 及長度之比值設計，達到最佳成像效果。 最後，在第四鏡片3 4之後乃為—成像鏡片6，惟# 乃係各式成像鏡頭之通用必備鏡片，且非本案之結構創作 重點，故不贅述，—併陳明。 綜上所述，本創作之成像鏡片組結構、排列與鏡片配 置’乃可有效縮小鏡組之體積，更能同時獲得較佳之解像 力，故其具有產業上之利用價值應已無庸置疑，且本案實 施例所揭露之之特徵技術’ ”請前並未曾見於諸刊物及 公開使用’應已具備「新穎性」與「進步性」之實用價值， ’確已符合新型專利巾請之要件，爰依法提出專利申請。 【圖式簡單說明】 【主要元件符號說明】 (2 )光圈 .(3 1 )第一鏡片 (3 1 2 )弧面 第-圖：係本創作一較佳實施例之結構示意圖。 (3 )光學鏡片組 (3 1 1 )凸面 (3 2 )第二鏡片 6 M360373 (3 2 1 )弧面 (3 3 )第三鏡片 (3 3 2 )凸面 (3 4 1 )凹面 (4 )物側 (6 )成像鏡片 (3 2 2 )凹面 (3 3 1 )凹面 (3 4 )第四鏡片 (3 4 2 )弧面 (5 )像側M360373 V. New Description: [New Technology Area] This creation is related to an imaging lens group. More specifically, it provides digital cameras, laptops, mobile phones, and personal digital cameras that are commonly used in everyday life. The structure of the research and development of the imaging lens set used by the assistant (PDA), the electronic product or the video equipment (including the camera or imaging function). [Prior Art] In order to continuously advance research and development with technology, in the electronic communication industry, it has been advancing and innovating in recent years, making it such as digital cameras, mobile phones, laptops, personal digital assistants (PDAs), etc. Electronic communication products are almost everywhere, and the related miniature imaging lens groups used for photographing or imaging are suitable for these electronic communication products. Among them, the imaging lens group is the most important in the miniature imaging lens group. The components. In addition, the user's requirements for the quality, convenience and practicability of the above products are in line with the increase. In addition to expecting products to be light, thin, short and small, it is more convenient to carry. Under the requirements of product f, the price can be popularized and popularized. Therefore, in order to achieve the above requirements, such as the imaging lens group which is the most important component in the micro (four) ribs, the structure can be simplified to reduce the structure. The manufacturing cost, the reduction of aberrations, the improvement of image quality, the lightness and thinness of the image, etc., are the eagerness of the manufacturers of the imaging lens group to pursue improvement and creation. [New content] Therefore, the main purpose of this creation is to create a structure for the so-called four-piece M360373 lens group, which is related to the structural creation cost and the aberration reduction to enhance the imaging. Product f, light and low lens Γ 2 to achieve the above purpose, the present invention is to provide - an imaging lens set 'including a light garden for the umbrella ring and the first learning lens group' and the optical system includes: the first lens, 篦- 锫 a wall - ' and the first lens, the third lens and the fourth lens A, the first lens facing the object side is a convex surface of a spherical or aspheric surface, facing the I be = spherical or aspherical curved surface The L lens is a spherical or aspherical curved surface toward the object side, and is a spherical or aspherical concave surface toward the image side; the third lens is a concave surface facing the object side and aspherical toward the image side. The convex surface of the fourth lens is a concave surface which is aspherical toward the object side, and is also an aspherical curved surface toward the image side. [Embodiment] _The rest of the article, the structural features and operations of the case, etc., in the form of a description, please refer to the following, and provide review for reference. First, referring to the first embodiment, the present invention provides an imaging lens set according to a preferred embodiment, comprising an aperture 2 and an optical lens set 3, and the optical lens set 3 includes: a first 锖K q , The music piece 31, the second lens 32, the third lens 33, and the fourth lens 34 are arranged from the object side 4 to the image side π; in order: aperture 2. The first lens 3 1 is oriented toward the object side 4 & 1 is 4 is a spherical or aspherical convex surface 3 1 1 , facing the image 恻 5 is broken and the surface is curved to the apron or aspherical surface 3 1 2. The first lens 3 2 has a spherical or aspherical arc surface 3 2 1 toward the object side 4 Α side 4 and a concave surface 3 2 2 which is a spherical surface and an aspheric surface toward the image side 5 . .M360373 The third lens 3 3 has a concave surface 3 3 1 ' toward the object side 4 and a convex surface 3 3 2 which is aspherical toward the image side 5; the fourth lens 34 is oriented toward the object side 4 The aspherical concave surface 3 4 1 'the image side 5 is also an aspherical curved surface 3 4 2 . And 'the imaging lens set must meet the following conditions: (1) 〇·3< | fl/f | < 1. 2 〇. 3< | f2/f I < 1. 2 ο. 2< I f3/f I < 1 〇.2< I f4/f 1 < 1 where ' f is the effective focal length of the entire imaging lens set, f 1 is the effective focal length of the first lens 31, and f 2 is effective for the second lens 32 The focal length 'f3 is the effective focal length of the third lens 33, and f4 is the effective focal length of the fourth lens 34. (2) 50 < Vdl < 60 20 < Vd2 < 30 50 < Vd3 < 60 50 < Vd4 < 60 wherein 'Vdl is the dispersion rate of the first lens 31, Vd2 is the dispersion rate of the second lens 32, and Vd3 is the first The dispersion ratio of the three lenses 3 3 , Vd4 is the dispersion rate of the fourth lens 34; and the dispersion rate ((115 mouth 6 犷 546) is also called Abbe number ° (3) 2. 4 < Fno. < 3. 2 where Fno. is aperture 2 (4) 0. 2< | bf/f | < 0. 5 M360373 its _, bf is the fourth lens 3 4 facing the face of the 恻 5 3 & 2 image The distance of the side '5, f is the effective focal length of the imaging lens set. (5) 0. 4< | d/f | <1.2 where d is the convex surface of the first lens 3 1 facing the object side 4 1 1 The total thickness of the four lenses 3 4 facing the arc surface 3 4 2 of the image side 5, f the effective focal length of the entire imaging lens set. Further, by the structure of the above lens, the overall structure can be simplified and transmitted through the above The ratio of the effective focal length to the length of 2 and the length of the lens 35 35 is designed to achieve the best imaging effect. Finally, after the fourth lens 34 is the imaging lens 6, but # is a common necessity for various imaging lenses mirror And it is not the focus of the structure creation of this case, so I will not go into details, and Chen Ming. In summary, the structure, arrangement and lens configuration of the imaging lens set of the present invention can effectively reduce the volume of the lens group, and can simultaneously obtain more It is undoubted that it has industrial use value, and the characteristic technology disclosed in the example of this case has not been seen in publications and public use. It should have "newness" and "progressiveness". The practical value, 'has already met the requirements of the new patent towel, and filed a patent application according to law. [Simple description of the figure] [Key symbol description] (2) Aperture. (3 1) First lens (3 1 2 Arc face-figure: A schematic diagram of a preferred embodiment of the present invention. (3) Optical lens group (3 1 1) convex surface (3 2 ) second lens 6 M360373 (3 2 1 ) curved surface (3 3 Third lens (3 3 2 ) convex surface (3 4 1 ) concave surface (4) object side (6) imaging lens (3 2 2 ) concave surface (3 3 1 ) concave surface (3 4 ) fourth lens (3 4 2 ) Curved surface (5) image side