200923467 九、發明說明： 【發明所屬之技術領域】 本發明係涉及光學鏡片之發展領域，尤指一種能有絕佳成像 效果之成像鏡片組（一）。 【先前技術】 按，目前光學鏡頭於現今數位影像領域的運用日益倍增，特 別是用於行動電話產品、p C CAM、D S C或Dvc等數位載 體上。隨著產業研發與市場聰下，上述之數位載體已朝向小型 化發展’’脚賴結制輕H則、、紐能表纖經濟的效 應，因此於載體中的鏡頭組也相對需達到小型化，故成像鏡片組 的么展亦隨著該趨勢而改良創新，且擁有高品質的成像鏡片組更 是廠商於產業競爭中的關鍵零組件。 效果 」於客知技術中皆以利用3或4枚鏡片構成的鏡頭組，因 為色差與像絲大’而無法獲得高成m不顧於高階的 ^碩組中，若雜高録品質時，其光學長會變長，這在一般小 二電子載體中，會因受空間限制而無法達到空間與品質兼顧的 因此’如何擁有高成像品 題，本發日报料詞五料姑鏡雜係-重要課 (_)。 、文，詳細說明如所述具創新性的成像鏡片組 【發明内容】 200923467 五枚透^ =的係提供—種高品f絲之鏡頭組，其係利用 五枚透=_材___面之設計而達成。 μ #目的係_膠合鏡以補償色差，並藉著最後 一片塑膠鏡片以拜|^会 ^ ，達到控制公差敏感度，進而提升生產 良率。 為達成上述目的’本發明係為—成像鏡片組㈠，包含有 -固定光攔和-光學組，該光學組包含第一、第二、第三、第四 和第五鏡>} ’其綱方式從物像側之順序為： 5亥第一鏡片’具有負屈光力且朝向物侧為凸面，朝向像側為 凹面；該光攔；該第二鏡片’具有正屈光力且朝向像側為凸面；該 第-鏡片u負透鏡；其麵像側的曲率半徑絕對值比朝向物 側的曲率半徑絕對值小；該第四鏡片為正透鏡，其朝向像侧的曲 率半徑絕對航朝向物側的轉半魏對值大；前述第三和第四 鏡月為祕喊之複合透鏡；該第五鏡片，具有正屈光力。 至於，上述成像鏡版（―）之結構設計，輯配合相關圖 示及後述之實施例說明。 【實施方式】 本發明採用有關合適的實施例並以圖式作為說明，第一圖與 第二圖係本發明第一、二實施例之鏡片組成圖，而實施例之收差 圖為一A和二A;—B和二B即為兩實施例之光學特性數據與非 球面係數負料示思圖。凊參閱第一B和二B圖所示，本發明各實 200923467 施例的數值變化皆屬模擬設計所得，既使運用不同數值、相同結 構的產品仍應屬於本發明的保護範脅，在此先行述明。 如第一圖所示，本發明係一種成像鏡片組，係包含有一固定 光攔1和一光學組，該光學組包含第一鏡片L i、第二鏡片L 2、 第三鏡片L 3、第四鏡片L 4和第五鏡片L 5鏡片，各鏡片皆為 塑膠材料所成型之透鏡’其排列方式從物側A至像細之順序為： 該第-鏡片L1 ’具有負屈光力且朝向物側A為凸面，朝向 像側B為凹面’且至少一面為非球面； 又，該光攔1介於第-鏡片L1與第二鏡片L 2之間；該第 二鏡片L 2，具有正屈光力且朝向像側B為凸面，且至少一面為 非球面； ~ 該第三鏡片L 3為·彎月負透鏡；其朝向像側B的曲率半徑絕 對值比朝向物側A的曲率半徑絕對值小； 該第四鏡# L 4為正透鏡，翻向像畑的曲率半徑絕對值 比朝向物側A_率半徑絕對值大；前述之第三、第四鏡片L3、 L 4，則枯接而成一複合透鏡； 該第五鏡紅5，具有正屈光力且朝向物側凹面，朝向 像側B為凸面，且至少一面為非球面。 一第一平面平板玻璃2 ’具有濾外線之功效；另於前像侧 B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 護感先讀之_，用以配適柯封裝結構之影像感測器，達到 200923467 更佳影像品質，·另該像側B乃指具影像攝取之感光元件，該感光 元件得採用C CD或CMO S等。 〜 關於上述本發明之成像鏡片組，並滿足以下之條件： 〇. 6<|f|/|fl|<l.〇 其中Ifll為第-鏡片L 1的焦距值’ |f|為整個鏡片组的焦 距值； 1.0<|f|/|f2|<1.5 其中If2|為第二鏡片L 2的焦距值，|f |為整個鏡片組的焦距 值； …、 〇.〇4<|f|/|f5|<0.25 其中I f51為第五鏡壯5的焦距值，丨f丨為整個鏡片組的焦距 值； …、 本發明成像鏡片組（一），其光學組惟有滿足上述各條件式， 方能令光學組之成像效果臻至最佳化，超出或不及上述所列條件 式’對於光學組之成像效果則會大打折扣。 本發明之收差圖以非點收差、歪曲收差和球面收差如一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μ像面 (MEERIDI0NAL)數據資料’並將之做示意表現；且由收差圖可清 楚獲知，本發明之收差補正都是完整模擬設計所得，在實用上已 沒有任何問題。 200923467 復，參照本發明第一B、二B圖表，係本發明第一、第二實 施例之非球面數據資料，最上方數據係本發明光學組各鏡片諸元 之代號： F. Να〜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。 晝角〜2ω。 焦點距離〜f ; f為光學組之合成焦點距離（mm)，下方工、 2、3、5、6、7、8、9、10、12、13、14、15 是物體側起依序的透 鏡面號數表示；面號數2. 3.為第-鏡片L丨的二面，面號數5. 6, 為第二鏡片L 2的二面’面號數7. 8. 9.為第三鏡片L 3及第四鏡 片L 4黏合而成之複合透鏡的鏡面，1{). n.則為第五鏡片l 5的 二面’至於12.13.14.15為第-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： Z = ch·2 i + + Ah4 + Bh6 + Ch% + Dh10 + Ehn + Ghu +......... 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。 200923467 A、B、C、D、E、G· · ·為高階非球面係數。 上述結構組合後，可藉由第三、四鏡片L3、L4_ s，使得成像之色差能有效控制；另利用第五鏡片L 5J 差的效果，進而達到高品質的成像效果；再者 ^象 利用透鏡為非球面鏡片，達成大4纽 兄片組 像所需之鏡片數。 象力較4進而減少成 由上所述者僅為用以解釋本發 以對本發明作任触a μ 认佳實_ ’麟企圖據 下淋从士 ^之限制’是以，凡有在相同之創作精神 下所作有關本發明之任 錄U之卿精神 保護之範疇。 ^.或變更，皆仍應包括在本發明意圖 200923467 【圖式簡單說明】 第一圖係本發明成像鏡片組（一）200923467 IX. INSTRUCTIONS: [Technical Field] The present invention relates to the field of development of optical lenses, and more particularly to an imaging lens set (1) capable of excellent imaging effects. [Prior Art] Press, the current use of optical lenses in today's digital imaging field is increasing, especially for mobile phone products, digital carriers such as p C CAM, D S C or Dvc. With the development of the industry and the market, the above digital carriers have been developing towards miniaturization, and the lens group in the carrier has to be miniaturized. Therefore, the development of the imaging lens group has also been improved and innovated with this trend, and the high-quality imaging lens group is a key component of the manufacturer's competition in the industry. In the case of the known technology, a lens group composed of 3 or 4 lenses is used, because the chromatic aberration and the large size of the ray are not able to obtain a high-quality m, regardless of the high-order group, if the recording quality is high, The optical length will become longer. In the general small two-electron carrier, it will not be able to achieve both space and quality due to space constraints. Therefore, 'how to have high-image products, this is the daily report material. Important lesson (_). , text, detailed description of the innovative imaging lens set as described [invention content] 200923467 five through ^ = provide a high-quality f-figure lens group, which uses five through = _ material ___ The design of the face is achieved. μ #目系_ Glue mirror to compensate for the chromatic aberration, and by the last piece of plastic lens to achieve control tolerance sensitivity, thereby improving production yield. In order to achieve the above object, the present invention is an imaging lens group (I) comprising a fixed-light barrier and an optical group, the optical group comprising first, second, third, fourth and fifth mirrors > The order from the object side is: 5H first lens 'has negative refractive power and is convex toward the object side, concave side toward the image side; the light barrier; the second lens 'has positive refractive power and is convex toward the image side The first lens-negative lens; the absolute value of the radius of curvature of the image side is smaller than the absolute value of the radius of curvature toward the object side; the fourth lens is a positive lens whose radius of curvature toward the image side is absolutely directional toward the object side The semi-Wei value is large; the third and fourth mirror months are compound lenses of the secret; the fifth lens has positive refractive power. As for the structural design of the above-mentioned imaging mirror ("), it is explained in conjunction with the related drawings and the embodiments described later. [Embodiment] The present invention adopts a suitable embodiment and is illustrated by the drawings. The first figure and the second figure are the lens composition diagrams of the first and second embodiments of the present invention, and the difference diagram of the embodiment is A. And two A; -B and two B are the optical characteristic data and the aspherical coefficient negative reflection diagram of the two embodiments.凊 Referring to the first B and B diagrams, the numerical changes of the embodiments of the present invention in 200923467 are all obtained by analog design, and even products using different values and the same structure should still belong to the protection threat of the present invention. Explain first. As shown in the first figure, the present invention is an imaging lens set comprising a fixed light barrier 1 and an optical group, the optical group comprising a first lens L i, a second lens L 2, a third lens L 3, The four lenses L 4 and the fifth lens L 5 lenses, each of which is a lens formed of a plastic material, is arranged in an order from the object side A to the image sequence: the first lens L1 'has a negative refractive power and faces the object side A is a convex surface, a concave surface toward the image side B, and at least one surface is aspherical; further, the light barrier 1 is interposed between the first lens L1 and the second lens L 2; the second lens L 2 has a positive refractive power and The image side B is a convex surface, and at least one surface is an aspherical surface; ~ the third lens L 3 is a meniscus negative lens; the absolute value of the curvature radius toward the image side B is smaller than the absolute value of the curvature radius toward the object side A; The fourth mirror # L 4 is a positive lens, and the absolute value of the radius of curvature of the turned image is larger than the absolute value of the radius of the object side A_ rate; the third and fourth lenses L3 and L 4 are merged into one. a composite lens; the fifth mirror red 5 has a positive refractive power and faces the concave side of the object side, and is convex toward the image side B And at least one surface is aspherical. A first flat plate glass 2' has the function of filtering the outer line; and the front image side B is further provided with a second flat plate glass 3, and the second flat plate glass 3 has a protective sense to read first. The image sensor of Ke package structure achieves better image quality of 200923467, and the image side B refers to the photosensitive element with image pickup. The photosensitive element must adopt C CD or CMO S. ~ About the above-mentioned imaging lens set of the present invention, and satisfying the following conditions: 〇. 6<|f|/|fl|<l.〇 where Ifll is the focal length value of the first lens L 1 ' |f| is the entire lens The focal length value of the group; 1.0<|f|/|f2|<1.5 wherein If2| is the focal length value of the second lens L2, |f| is the focal length value of the entire lens group; ..., 〇.〇4<| f|/|f5|<0.25 wherein I f51 is the focal length value of the fifth mirror, and 丨f丨 is the focal length value of the entire lens group; ..., the imaging lens group (1) of the present invention, the optical group of which only satisfies the above Under the conditional conditions, the imaging effect of the optical group can be optimized, and the conditional expressions listed above are not compromised. The difference graph of the present invention is represented by a non-point difference, a distortion difference, and a spherical difference, such as an A and a second diagram. No matter what kind of difference map is the data of the d line, the point difference is about S. The data of the image surface (SAGITAL) is related to the data of the μ image (MEERIDI0NAL) and is clearly represented by the data sheet; and it can be clearly seen from the income map that the compensation of the invention is a complete simulation design, which is practical. There are no problems on it. Referring to the first B and B charts of the present invention, the aspherical data of the first and second embodiments of the present invention, the uppermost data is the code of each lens of the optical group of the present invention: F. Να~ The F value represents the brightness parameter in the optical design, wherein the smaller the F value, the higher the brightness.昼 angle ~ 2ω. The focal distance is ~f; f is the combined focal length (mm) of the optical group, and the lower working, 2, 3, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15 are the sides of the object. The number of the lens surface number is 2. The number of the surface number is 2. 3. The two sides of the first lens L丨, the number of the surface number is 5. 6, which is the two sides of the second lens L 2 'the number of the surface number 7. 8. 9. The mirror surface of the composite lens in which the third lens L 3 and the fourth lens L 4 are bonded, 1{). n. is the two sides of the fifth lens 15 to 12.13.14.15 is the first flat plate glass 2 and the Two sides of the two flat plate glass 3. In addition, each lens of the optical group of the present invention may have an aspherical shape on both sides, and the aspherical surface shape must satisfy the following formula: Z = ch·2 i + + Ah4 + Bh6 + Ch% + Dh10 + Ehn + Ghu +. ........ Z is the position value with reference to the surface apex at a position of height h in the direction of the optical axis. k is a constant measure of the cone. c is the reciprocal of the radius of curvature. 200923467 A, B, C, D, E, G · · · is a high-order aspheric coefficient. After the above structures are combined, the chromatic aberration of imaging can be effectively controlled by the third and fourth lenses L3 and L4_s; and the effect of the difference of the fifth lens L 5J is utilized to achieve high-quality imaging effects; The lens is an aspherical lens, and the number of lenses required for the image of the large 4-inch group is achieved. The image power is reduced from 4 to the above, and the above is only used to explain the present invention to make the touch of the present invention a μ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ In the spirit of creation, the scope of the spirit protection of the U. ^. or change, should still be included in the intention of the present invention 200923467 [Simplified description of the drawings] The first figure is the imaging lens set of the present invention (1)
览<第一實施例之鏡片組成圖。 第一A圖係本發明成像鏡片組（一） M 唆〈弟—實施例之收差圖。 第一Β圖係本發明成像鏡片組（一） 據與非球面係數資料示意圖。之第—實施例之光學特性數 第二圖係本發明成像鏡片組（一） 第二六圖係本發明雜鏡#組（―）d狀鏡卩、、且成圖。 ^ ^ 又第二實施例之收差圖。 弟一B圖係本發明成像鏡片組（― 據與非球面係數資料示意圖。之實施例之光學特性數 【主要元件符號說明】 A 〜物側 一像側A lens composition diagram of the first embodiment is shown. The first A is the image of the imaging lens set of the present invention (I). The first diagram is a schematic diagram of the imaging lens set of the present invention (1) according to the aspheric coefficient. The number of optical characteristics of the first embodiment is the second embodiment of the present invention. The second image is a micro-frame of the present invention (-) d-shaped mirror, and is patterned. ^ ^ The difference diagram of the second embodiment. The Brother-B diagram is the imaging lens group of the present invention (the schematic diagram of the data and the aspherical coefficient data. The number of optical characteristics of the embodiment) [Main component symbol description] A ~ object side image side
〜一第一平面平板玻璃 〜一第一鏡片 〜一第三鏡片 〜一第五鏡片 1 〜光襴 ^ 一〜第二平面平板玻璃 L 2 —第二鏡片 L 4 — 一〜第四鏡片~ a first flat flat glass ~ a first lens ~ a third lens ~ a fifth lens 1 ~ light ^ ^ a second flat flat glass L 2 - second lens L 4 - one ~ fourth lens