200923407 九、發明說明： 【發明所屬之技術領域】 本發明麵及光學鏡·域，尤指—種可以衫統的公差敏 1又降低提幵生產良率，並可以獲得較佳的成像品質之成像鏡 片組。 、 【先前技術】 按，現今具__'_影魏讀位紐，如、PC CAM、 DSC、勵，以及轉數位載體，目前所著重之研發方向，乃符合 消費者便帶為主之輕、薄、短、小，以及外形設計匠心獨具 為訴求’也雌構體積之大量輕巧化，使得結構元件之構成更需 朝迷你化發展，而，f控影_取之鏡_首當其衝，成為數位 載體輕巧化之改善重點之—。 其中，兼具靜態及動態攝影功能谓（㈣制Vide〇)，則 疋具體實現上述家剌品輕巧化之典型範例，由於輕巧易攜帶之 特性，更在短短數年取代TV8、副之市場；雖然，⑽於市:上因 輕巧體型以及高晝素兩大纽，強化其市場競爭優勢，但，就吾 人所知，目前_其他數位载體所標榜之高晝素特質，卻因參響 攝取關鍵之鏡頭設計不佳，導致纽公差之敏歧過高，進而二 響DV之成像品質，_亦造成產品之不良率過高之技術課題。〜 因此，如何將四片式絲鏡賴之成像品昇，以今應數 位載體市場競爭_之高晝素晝上等號，則是目前高畫質之四片 200923407 式光學鏡頭組，迫切改善之重要課題，本發明提供如下文，詳細 說明如所述具創新性的成像鏡片組（四）。 【發明内容】 本發明主要目的係提供一種使成像系統的公差敏感度降低且 提升生產良率之高品質成像鏡片組，其係利用四片鏡片之透鏡設 計而形成。 為達上述之目的，本發明遂提出一種成像鏡片組（四），係包 含有一固疋光欄和一光學組，光學組包含第一、第二、第二、第 四鏡片’其排列方式從物側至像侧之順序$:該光搁；該第一鏡 片，為雙凸形狀之鏡片；該第二鏡片，具有負屈光力且朝向物側 為凹面，又，其至少有—面為非球面；該第三鏡片，具有正屈光 力且朝向像側為凸面的彎月型鏡片;又;其至少有一面為非球面； 該第四鏡#具有朝向物側為凸面，朝向像側為波浪狀且在靠近光 轴附近為凹面；又；其至少有—面為非球面。 至於’上述成像鏡片組（四）之結構設計，兹請配合相關圖 示及後述之實施例說明。 【實施方式】 本發明採用有關合適之實施例並簡式作為，第一圖與 第-圖係本發明第-、二實施例之鏡片組成圖，而實施例之收差 圖為-A和二A;-B和二B即為兩實施例之光學特性數據與非 球面係數資料示意圖。請參閱第—B和二b圖所示，本發明各實 200923407 如例的數值變化皆屬設計所得，既使運用不同數值、相同結構的 產品仍應胁本判的保護料，在此先行述明。 請參閱第i所示之四片式綱組，本發明係一種成像鏡片 組（四）’用以裝置於輕薄短小的數位載體，如數位相機、行動 電話内4寺別疋Dv攝影機之運用，更可發揮出該成像鏡片組之功 效，但並非僅侷限於DV之使用，合先敘明。 至於，本發明之成像鏡片組（四），其較佳之兩種實施例中， 該成像鏡>1組係沿著絲，從物#jA開始依序包含有—固定光棚 1和-光學組，該光學組包含第―、第二、第三、第四鏡片L丄、 L 2、L 3、L 4，其排列方式從物侧A至像側B之順序為： 該光攔1 ; 該第一鏡片L1，為雙凸形狀之鏡片，其中該第一鏡片L·1 之透鏡表面皆可採非球面設計，以提昇成像品質； «亥第一鏡片L 2，具有負屈光力且朝向物侧a為凹面；又； 其至少有一面為非球面； 該第二鏡片L3，具有正屈光力且朝向像侧B為凸面的彎月 型鏡片；又；其至少有一面為非球面； 該第四鏡片L4，具有朝向物侧A為凸面’朝向像侧B為波 浪狀且在靠近光軸附近為凹面；又；其至少有—面為非球面； 前述本發明系統即是由四枚鏡片構成之光學組，而位於第四 鏡片L4後方之第一平面平板玻璃2，具有濾紅外線之功效；另 200923407 於像側B前亦再設-第二平面平板玻璃3，該第二平面平板玻璃 3具有保護感光70件之作用，用㈣適不同封裝結構之影像感測 盗’達到更佳影像品質；另於像側B處配置之感光元件 ，則可依 實際需求選擇CCD或C0MS等。 本發明之成像鏡片組（四），其中光學組透過光搁^前置計 置再配5第鏡片、第二鏡片、第三鏡片及第四鏡片配置，以 及第-鏡片、第二鏡片及第四鏡片表面為非球面設計，除有助於 高畫質鏡頭之鏡級用數量減少，又可發揮出不錯之抑制像差之 特性，故，整體光學組之設計，實可令系統的公錄感度大幅降 低，提昇生產良率，並可以獲得較佳的成像品f，且前置光搁工 具備了入射祕件及需求㈣成之触，财助於鏡頭之生產、 製造良率特性。 至於，本發明成像鏡片組（四）之光學組，則必需滿足以下 之條件： 0.5<f/TL <1 其中TL為光攔1到成像面B之間距離，f為整個鏡片組的焦距值; 〇-5<ϋ1<〇.85 \fn\ 其中/12為第-鏡片L 1和第二鏡片L 2的合成焦距值，f為整個 鏡片組的焦距值； 0.5 <200923407 IX. Description of the invention: [Technical field of the invention] The surface and the optical mirror domain of the invention, in particular, the tolerance sensitivity of the shirt can be reduced, and the yield of the fabric can be improved, and the better image quality can be obtained. Imaging lens set. [Previous technology] Press, nowadays __'_影魏读位纽, such as PC CAM, DSC, excitation, and digital carrier, the current research and development direction is in line with the consumer's light Thin, short, small, and the design of the shape is uniquely appealing. 'The size of the female body is also light and light, so that the composition of the structural components needs to be developed toward miniaturization, and the image of the control film is the first to become the first. The improvement of the digital carrier's lightness is focused on. Among them, the combination of static and dynamic photography functions (Vie〇), which is a typical example of the lightness of the above-mentioned household products, has replaced the TV8 and the vice market in just a few years due to its light and easy-to-carry characteristics. Although, (10) in the city: due to the light body and high-quality two big New Zealand, to strengthen its market competitive advantage, but as far as I know, the current high-quality characteristics of other digital carriers, but because of the participation Poorly designed lenses are not well-suited, resulting in high sensitivity of the New York tolerances, and thus the image quality of the DV, which also causes technical problems with excessive product defect rates. ~ Therefore, how to increase the imaging of the four-piece wire mirror to the digital carrier market in the future, the high-quality four-piece 200923407 optical lens group is urgently improved. As an important subject, the present invention provides a detailed description of the innovative imaging lens set (4) as described below. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a high quality imaging lens set that reduces tolerance sensitivity of an imaging system and improves production yield, which is formed using a lens design of four lenses. In order to achieve the above object, the present invention provides an imaging lens set (four) comprising a solid light column and an optical group, the optical group comprising the first, second, second and fourth lenses 'arranged from The order from the object side to the image side is: the light rest; the first lens is a biconvex lens; the second lens has a negative refractive power and is concave toward the object side, and at least the surface is aspherical The third lens has a positive refractive power and a meniscus lens that is convex toward the image side; and at least one of the surfaces is aspherical; the fourth mirror # has a convex surface toward the object side and a wave shape toward the image side. It is concave near the optical axis; again; at least its surface is aspherical. As for the structural design of the above-mentioned imaging lens group (4), please refer to the related drawings and the embodiments described later. [Embodiment] The present invention adopts a suitable embodiment and is a simplified embodiment. The first figure and the first figure are the lens composition diagrams of the first and second embodiments of the present invention, and the difference diagrams of the embodiment are -A and II. A; -B and B are the schematic diagrams of the optical characteristic data and the aspherical coefficient data of the two embodiments. Please refer to the figures -B and b, and the numerical changes of the examples of the present invention are all designed according to the examples. Even if the products with different values and the same structure are used, the protection materials of the judgment should be threatened. Bright. Please refer to the four-piece group shown in the first embodiment. The present invention relates to an imaging lens group (4) for use in a light and thin digital carrier, such as a digital camera, a mobile phone, and a DV camera. The effect of the imaging lens set can be exerted, but it is not limited to the use of DV. As for the imaging lens group (4) of the present invention, in the preferred two embodiments, the imaging lens > 1 group is along the wire, and includes the fixed light booth 1 and the optical device starting from the object #jA. The optical group includes first, second, third, and fourth lenses L丄, L2, L3, and L4, and the order of arrangement from the object side A to the image side B is: the light barrier 1; The first lens L1 is a biconvex lens, wherein the lens surface of the first lens L·1 can adopt an aspherical design to improve image quality; «Hai first lens L 2 has negative refractive power and orientation The side a is a concave surface; further; at least one of the surfaces is aspherical; the second lens L3 has a positive refractive power and a meniscus lens that is convex toward the image side B; and; at least one side thereof is aspherical; The lens L4 has a convex surface toward the object side A, a wave shape toward the image side B, and a concave surface near the optical axis. Further, at least the surface thereof is aspherical; the foregoing system of the present invention is composed of four lenses. An optical group, and the first flat plate glass 2 located behind the fourth lens L4 has an infrared filter Efficacy; another 200923407 is also set in front of the image side B - the second flat plate glass 3, the second flat plate glass 3 has the function of protecting the photosensitive 70 pieces, and is better with (4) image sensing stolen for different package structures. Image quality; in addition to the photosensitive element configured on the image side B, CCD or C0MS can be selected according to actual needs. The imaging lens group (4) of the present invention, wherein the optical group is provided with a fifth lens, a second lens, a third lens and a fourth lens configuration, and a first lens, a second lens and a The surface of the four lenses is aspherical. In addition to reducing the number of mirrors used for high-quality lenses, it also provides good suppression of aberrations. Therefore, the design of the overall optical group can make the system public. The sensitivity is greatly reduced, the production yield is improved, and the better imaged product f can be obtained, and the front light-storing tool is prepared for the incident secret and the demand (4), which contributes to the production and manufacturing yield characteristics of the lens. As for the optical group of the imaging lens group (4) of the present invention, the following conditions must be satisfied: 0.5 < f / TL < 1 where TL is the distance between the light barrier 1 and the imaging surface B, and f is the entire lens group Focal length value; 〇-5<ϋ1<〇.85 \fn\ where /12 is the composite focal length value of the first lens L 1 and the second lens L 2, f is the focal length value of the entire lens group; 0.5 <
<0.85 其中^為第-鏡片L 3和第二鏡片L 4的合成焦距值，f為整個鏡 200923407 片組的焦距值； 本發明成像鏡片組（四），其光學組惟有滿足上述各條件式， 方能令光學組公差敏感度降低、提昇產品良率，同時更將光學組 之成像品質推至最佳化；反之，若光學組不及或超出上述所列各 條件式，對於光學組之公差敏感度、產品良率及成像品質各方面， 則無顯著性之助益。 另外，本發明之收差圖以非點收差、歪曲收差和球面收差一 A、二A圖示，無論何種收差圖皆是關於d線的數據資料，而非 點收差是關於S像面（SAGITAL)的數據資料跟關於M像面 (MEERIDI0NAL)數據資料，並將之做示意表現；且由收差圖可清 疋獲4本电明之收差補正都是完整模擬設計所得，於實際運用 層面上亦無任何之疑慮。 復，參照本發明第一B、二B圖表，係本發明第一、第二實 、 蝴之麵面數據資料，最上方數據係本發明光學組各鏡片諸元 之代號： F N0.〜該F值於光學設計時’代表亮度參數，其中f值愈小 表示光亮度愈高。 一 晝角〜2ω。 焦點距離〜f ; f為光學組之合成焦點距離（麵），下方 3· 4. 5. 6. 7. 8. 9.10.11.12.13是物體侧起依序的透鏡面號數表 τ ’面就數2. 3·為第-鏡片l 1的二面，面號數4.5.為第二鏡片 200923407 L 2的二面’面號數6. 7.為第三鏡片L 3的二面，δ· 9.為第四鏡 片L4的二面，面號數1(U1.12.13為第一平面平板玻璃2及第 二平面平板玻璃3的二面。 此外，本發明光學組之各鏡片，因兩面皆可為非球面形狀， 該非球面的面型須滿足下列公式： 7 = — ch2 , l + [l-(yt + i)c2/j2]05 +Ah + Bh6 + Chs + Dh10 + Ehu +Ghu +.......... / 其中z為沿光軸方向在高度為h的位置以表面頂點作參考的 位置值，k為錐常度量；c為曲率半徑的倒數；a、b、c、d、e、g、.. 為1¾階非球面係數。 本發明藉由前置口徑及第一鏡片、第二鏡片、第三片鏡片、 第四片鏡片配置可以使系統的公差敏感度降低，提昇生產良率， 並可以獲得較佳的成像品質。 由上所述者僅為用以解釋本發明之較佳實施例，並非企圖據 、 以對本發明作任何形式上之關，是以，凡有在相同之創作精神 下所作有關本發明之任何修飾或變更，皆仍應包括在本發明意圖 保護之範_。 10 200923407 【圖式簡單說明】 第-圖係本發明成像鏡片組（四）之 第-A圖係本發明成像鏡片組 二&組成® ° , 之弟—實施例之收差圖。 第-B圖係本發明成像鏡片組（ 之弟一實施例之光學特性數 據>、非球面係數資料示意圖。 )之弟一實施例之鏡片組成圖。 四）之第二實施例之收差圖。 四）之第二實施例之光學特性數 第二圖係本發明成像鏡片組（四 第二Α圖係本發明成像鏡片組（ 第二B圖係本發明成像鏡片組（ 據與非球面係數資料示意圖。 【主要元件符號說明】 A —--物侧 1 ———光欄 3 ———第二平面平板玻璃 L 2 ――第二鏡片 L 4 —第四鏡片 一像侧 2〜--第一平面平板玻璃 L1 —第一鏡片 L 3 —第三鏡片<0.85 wherein ^ is the composite focal length value of the first lens L 3 and the second lens L 4, f is the focal length value of the entire mirror 200923407 slice group; the imaging lens group (4) of the present invention, the optical group of which only satisfies the above conditions In order to reduce the tolerance of the optical group, improve the yield of the product, and at the same time optimize the imaging quality of the optical group; on the contrary, if the optical group does not meet or exceed the above-mentioned conditions, for the optical group There are no significant benefits in terms of tolerance sensitivity, product yield and image quality. In addition, the difference graph of the present invention is illustrated by a non-point difference, a distortion difference, and a spherical aberration, A and A, regardless of the difference map, which is the data of the d line, and the point difference is About the S-picture (SAGITAL) data and the M-picture (MEERIDI0NAL) data, and make it a schematic representation; and the income map can be cleared to obtain 4 sets of the same. There is no doubt at the practical level. Referring to the first B and B charts of the present invention, the first and second real and butterfly data of the present invention are the data of the first and second data of the optical lens of the present invention: F N0. The F value represents the brightness parameter in the optical design, wherein the smaller the f value, the higher the brightness. A corner ~ 2ω. The focal distance is ~f; f is the combined focus distance (face) of the optical group, and the lower 3· 4. 5. 6. 7. 8. 9.10.11.12.13 is the number of the lens surface number τ 'face in the order of the object side The number of 2. 3 is the two sides of the first lens l 1 , the face number is 4.5. The second lens 200923407 L 2 is the two sides 'face number 6. 7. is the two sides of the third lens L 3 , δ 9. is the two sides of the fourth lens L4, the number of the face number 1 (U1.12.13 is the two sides of the first flat plate glass 2 and the second flat plate glass 3. In addition, the lenses of the optical group of the present invention are due to two sides They can all be aspherical, and the aspherical surface must satisfy the following formula: 7 = — ch2 , l + [l-(yt + i)c2/j2]05 +Ah + Bh6 + Chs + Dh10 + Ehu +Ghu + .......... / where z is the position value with reference to the surface apex at the height h position along the optical axis, k is the cone constant metric; c is the reciprocal of the radius of curvature; a, b, C, d, e, g, .. is a 13⁄4 order aspherical coefficient. The present invention can make the tolerance sensitivity of the system by the front aperture and the first lens, the second lens, the third lens, and the fourth lens configuration. Reduce, increase production yield, and get The invention is only for the purpose of explaining the preferred embodiment of the present invention, and is not intended to be in any form, and is in any form related to the present invention. Any modification or modification of the present invention should still be included in the scope of the present invention. 10 200923407 [Simplified description of the drawings] The first image is the image of the present invention. The lens group II & composition ̄ °, the brother - the difference diagram of the embodiment. The -B picture is the imaging lens group of the present invention (the optical characteristic data of an embodiment of the invention), the aspherical coefficient data schematic. A lens composition diagram of an embodiment of the invention. 4) A difference diagram of the second embodiment. 4) Optical Characteristics of the Second Embodiment FIG. 2 is an imaging lens group of the present invention (four second image shows the imaging lens group of the present invention (second B image is the imaging lens group of the present invention (according to the aspheric coefficient data) Schematic. [Main component symbol description] A —- object side 1 ——— diaphragm 3 ——— second flat plate glass L 2 — second lens L 4 — fourth lens image side 2~-- a flat plate glass L1 - first lens L 3 - third lens