TWI471634B - Six-piece optical lens system - Google Patents
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本發明係與光學鏡頭有關，特別是指一種六片式成像鏡片組。The present invention relates to optical lenses, and more particularly to a six-piece imaging lens set.
最近幾年來，隨著手機相機的興起，小型化攝影鏡頭的需求日漸提高，而一般攝影鏡頭的感光元件不外乎是感光耦合元件(Charge Coupled Device,CCD)或互補性氧化金屬半導體(Complementary Metal-Oxide Semiconductor,CMOS)兩種，由於半導體製程技術的進步，使得感光元件的畫素面積縮小，小型化攝影鏡頭逐漸往高畫素領域發展，因此，對成像品質的要求也日益增加。In recent years, with the rise of mobile phone cameras, the demand for miniaturized photographic lenses has been increasing, and the photosensitive elements of general photographic lenses are nothing more than a Charge Coupled Device (CCD) or a Complementary Metallic Semiconductor (Complementary Metal). -Oxide Semiconductor (CMOS), due to the advancement of semiconductor process technology, the pixel area of the photosensitive element is reduced, and the miniaturized photographic lens is gradually developing into the high-pixel field. Therefore, the requirements for image quality are increasing.
傳統搭載於可攜式電子產品上的小型化攝影鏡頭，多採用四片式透鏡結構為主，但由於手機相機的畫素攀升得非常迅速，感光元件的畫素面積逐漸縮小，且在系統成像品質的要求不斷提高的情況下，習知的四片式透鏡組將無法滿足更高階的攝影鏡頭模組，並由於電子產品不斷地往輕薄化、高性能的趨勢發展。The miniaturized photographic lens that is traditionally used in portable electronic products mainly uses a four-piece lens structure, but since the pixel of the mobile phone camera climbs very rapidly, the pixel area of the photosensitive element is gradually reduced, and the system is imaged. In the case of ever-increasing quality requirements, the conventional four-piece lens unit will not be able to meet higher-order photographic lens modules, and the trend of electronic products will continue to be thinner and lighter.
是以，如何開發出一種成像鏡片組，其可解決上述缺陷，即是本發明研發的動機。Therefore, how to develop an imaging lens set that can solve the above drawbacks is the motivation for the development of the present invention.
本發明之目的在於提供一種六片式成像鏡片組，其可應用於高畫素手機相機，且不至於使鏡頭總長度過長，而同時具備大畫角、大光圈、高畫數、高解析能力和低鏡頭高度的六片式成像鏡片組。The object of the present invention is to provide a six-piece imaging lens set which can be applied to a high-resolution mobile phone camera without causing the total length of the lens to be too long, and at the same time having a large picture angle, a large aperture, a high number of pictures, and a high resolution. A six-piece imaging lens set with the ability and low lens height.
本發明提供一種六片式成像鏡片組，由物側至像側依序包含：一光欄；一具正屈折力的第一鏡片，其物側表面為凸面，且該第一鏡片的物側表面與像側表面至少一面為非球面；一具負屈折力的第二鏡片，其像側表面為凹面，且該第二鏡片的物側表面與像側表面至少一面為非球面；一具正屈折力的第三鏡片，其像側表面為凸面，且該第三鏡片的物側表面與像側表面至少一面為非球面；一具正屈折力的第四鏡片，其物側表面為凹面，且該第四鏡片的物側表面與像側表面至少一面為非球面；一第五鏡片，其像側表面為凸面，且該第五鏡片的物側表面與像側表面至少一面為非球面；一具負屈折力的第六鏡片，其像側表面為凹面，且該第六鏡片的物側表面與像側表面至少一面為非球面。The invention provides a six-piece imaging lens set, which comprises: a light bar from the object side to the image side; a first lens having a positive refractive power, the object side surface is a convex surface, and the object side of the first lens At least one side of the surface and the image side surface is aspherical; a second lens having a negative refractive power, the image side surface is concave, and the object side surface and the image side surface of the second lens are at least one aspherical surface; a third lens having a refractive power, wherein the image side surface is a convex surface, and the object side surface and the image side surface of the third lens are at least one aspherical surface; and the fourth lens having a positive refractive power has a concave side surface. The object side surface and the image side surface of the fourth lens are at least one aspherical surface; the fifth lens has an image side surface which is convex, and the object side surface and the image side surface of the fifth lens are at least one aspherical surface; A sixth lens having a negative refractive power has a concave side on the image side surface, and at least one side of the object side surface and the image side surface of the sixth lens is aspherical.
本發明六片式成像鏡片組，該第一鏡片的焦距為f1，該第二鏡片的焦距為f2，兩者滿足下列關係式：0.3＜|f1|/|f2|＜0.7。當|f1|/|f2|滿足前述關係式，則可令該成像鏡片組在具備大畫角、大光圈、高畫數和低鏡頭高度，同時解像能力顯著提昇，反之，若超出上述光學式之數據值範圍，則會導致六片式成像鏡片組之性能、解像力低，以及良率不足等問題。In the six-piece imaging lens set of the present invention, the focal length of the first lens is f1, and the focal length of the second lens is f2, and both satisfy the following relationship: 0.3<|f1|/|f2|<0.7. When |f1|/|f2| satisfies the foregoing relationship, the imaging lens group can have a large picture angle, a large aperture, a high number of pictures, and a low lens height, and the resolution capability is remarkably improved. The range of data values results in problems with the performance, low resolution, and insufficient yield of the six-piece imaging lens set.
本發明六片式成像鏡片組，該第二鏡片的焦距為f2，該第三鏡片的焦距為f3，兩者滿足下列關係式：0.7＜|f2|/|f3|＜1.4。當|f2|/|f3|滿足前述關係式，則可令該成像鏡片組在具備大畫角、大光圈、高畫數和低鏡頭高度，同時解像能力顯著提昇，反之，若超出上述光學式之數據值範圍，則會導致六片式成像鏡片組之性能、解像力低，以及良率不足等問題。In the six-piece imaging lens set of the present invention, the focal length of the second lens is f2, and the focal length of the third lens is f3, and both satisfy the following relationship: 0.7<|f2|/|f3|<1.4. When |f2|/|f3| satisfies the foregoing relationship, the imaging lens group can have a large picture angle, a large aperture, a high number of pictures, and a low lens height, and the resolution capability is remarkably improved, and vice versa. The range of data values results in problems with the performance, low resolution, and insufficient yield of the six-piece imaging lens set.
本發明六片式成像鏡片組，該第五鏡片的焦距為f5，該第六鏡片的焦距為f6，兩者滿足下列關係式：2.2＜|f5|/|f6|＜4.2。當|f5|/|f6|滿足前述關係式，則可令該成像鏡片組在具備大畫角、大光圈、高畫數和低鏡頭高度，同時解像能力顯著提昇，反之，若超出上述光學式之數據值範圍，則會導致六片式成像鏡片組之性能、解像力低，以及良率不足等問題。In the six-piece imaging lens set of the present invention, the focal length of the fifth lens is f5, and the focal length of the sixth lens is f6, and both satisfy the following relationship: 2.2<|f5|/|f6|<4.2. When |f5|/|f6| satisfies the foregoing relationship, the imaging lens group can have a large picture angle, a large aperture, a high number of pictures, and a low lens height, and the resolution capability is remarkably improved, and vice versa. The range of data values results in problems with the performance, low resolution, and insufficient yield of the six-piece imaging lens set.
本發明六片式成像鏡片組，該第一鏡片、該第二鏡片及該第三鏡片的合成焦距為f123，該六片式成像鏡片組的整體合成焦距為f，兩者滿足下列關係式：0.6＜|f123|/|f|＜1.2。當|f123|/|f|滿足前述關係式，則可令該成像鏡片組在具備大畫角、大光圈、高畫數和低鏡頭高度，同時解像能力顯著提昇，反之，若超出上述光學式之數據值範圍，則會導致六片式成像鏡片組之性能、解像力低，以及良率不足等問題。In the six-piece imaging lens set of the present invention, the composite focal length of the first lens, the second lens and the third lens is f123, and the overall composite focal length of the six-piece imaging lens group is f, and the two satisfy the following relationship: 0.6<|f123|/|f|<1.2. When |f123|/|f| satisfies the foregoing relationship, the imaging lens group can have a large picture angle, a large aperture, a high number of pictures, and a low lens height, and the resolution capability is remarkably improved. The range of data values results in problems with the performance, low resolution, and insufficient yield of the six-piece imaging lens set.
本發明六片式成像鏡片組，該第四鏡片、該第五鏡片及該第六鏡片的合成焦距為f456，該六片式成像鏡片組的整體合成焦距為f，兩者滿足下列關係式：0.8＜|f456|/|f|＜2.7。當|f456|/|f|滿足前述關係式，則可令該成像鏡片組在具備大畫角、大光圈、高畫數和低鏡頭高度，同時解像能力顯著提昇，反之，若超出上述光學式之數據值範圍，則會導致六片式成像鏡片組之性能、解像力低，以及良率不足等問題。In the six-piece imaging lens set of the present invention, the composite focal length of the fourth lens, the fifth lens and the sixth lens is f456, and the overall composite focal length of the six-piece imaging lens group is f, and the two satisfy the following relationship: 0.8<|f456|/|f|<2.7. When |f456|/|f| satisfies the foregoing relationship, the imaging lens group can have a large picture angle, a large aperture, a high number of pictures, and a low lens height, and the resolution capability is remarkably improved. The range of data values results in problems with the performance, low resolution, and insufficient yield of the six-piece imaging lens set.
本發明六片式成像鏡片組，該第一鏡片的焦距為f1，該第二鏡片及該第三鏡片的合成焦距為f23，兩者滿足下列關係式：|f1|/|f23|＜0.25。當|f1|/|f23|滿足前述關係式，則可令該成像鏡片組在具備大畫角、大光圈、高畫數和低鏡頭高度，同時解像能力顯著提昇，反之，若超出上述光學式之數據值範圍，則會導致六片式成像鏡片組之性能、解像力低，以及良率不足等問題。In the six-piece imaging lens set of the present invention, the focal length of the first lens is f1, and the combined focal length of the second lens and the third lens is f23, and both satisfy the following relationship: |f1|/|f23|<0.25. When |f1|/|f23| satisfies the foregoing relationship, the imaging lens group can have a large picture angle, a large aperture, a high number of pictures, and a low lens height, and the resolution capability is remarkably improved. The range of data values results in problems with the performance, low resolution, and insufficient yield of the six-piece imaging lens set.
本發明六片式成像鏡片組，該第三鏡片及該第四鏡片的合成焦距為f34，該第五鏡片及該第六鏡片的合成焦距為f56，兩者滿足下列關係式：0.55＜|f34|/|f56|＜1.25。當|f34|/|f56|滿足前述關係式，則可令該成像鏡片組在具備大畫角、大光圈、高畫數和低鏡頭高度，同時解像能力顯著提昇，反之，若超出上述光學式之數據值範圍，則會導致六片式成像鏡片組之性能、解像力低，以及良率不足等問題。In the six-piece imaging lens set of the present invention, the composite focal length of the third lens and the fourth lens is f34, and the combined focal length of the fifth lens and the sixth lens is f56, and the two satisfy the following relationship: 0.55<|f34 |/|f56|<1.25. When |f34|/|f56| satisfies the foregoing relationship, the imaging lens group can have a large picture angle, a large aperture, a high number of pictures, and a low lens height, and the resolution capability is remarkably improved. The range of data values results in problems with the performance, low resolution, and insufficient yield of the six-piece imaging lens set.
本發明六片式成像鏡片組，該六片式成像鏡片組的整體合成焦距為f，該第一鏡片的物側表面到成像面之間的距離為TL，兩者滿足下列關係式：0.5＜|f/TL|＜0.9。當|f/TL|滿足前述關係式，則可具有光學全長較短，達到更小型輕便之特點。In the six-piece imaging lens set of the present invention, the overall composite focal length of the six-piece imaging lens set is f, and the distance between the object side surface of the first lens and the imaging surface is TL, and the two satisfy the following relationship: 0.5< |f/TL|<0.9. When |f/TL| satisfies the foregoing relationship, it can have a shorter optical total length and is smaller and lighter.
有關本發明為達成上述目的，所採用之技術、手段及其他之功效，茲舉二較佳可行實施例並配合圖式詳細說明如後。The present invention has been described with reference to the preferred embodiments of the present invention in accordance with the accompanying drawings.
本發明第一實施例所提供的一種六片式成像鏡片組，請參閱第1A、1B圖，該第1A圖為本發明第一實施例之六片式成像鏡片組配置示意圖，第1B圖為本發明第一實施例像差曲線圖，第一實施例從物側A到像側B包含：一光欄100。For a six-piece imaging lens set provided by the first embodiment of the present invention, please refer to FIGS. 1A and 1B. FIG. 1A is a schematic view showing the configuration of a six-piece imaging lens unit according to the first embodiment of the present invention, and FIG. In the aberration diagram of the first embodiment of the present invention, the first embodiment includes: a diaphragm 100 from the object side A to the image side B.
一具正屈折力的第一鏡片110，其材質為塑膠，該第一鏡片110的物側表面111為凸面、該像側表面112為凸面，該第一鏡片110的物側表面111與像側表面112皆設為非球面。A first lens 110 having a positive refractive power is made of plastic. The object side surface 111 of the first lens 110 is a convex surface, and the image side surface 112 is a convex surface. The object side surface 111 and the image side of the first lens 110 are The surface 112 is set to be aspherical.
一具負屈折力的第二鏡片120，其材質為塑膠，該第二鏡片120的物側表面121為凸面、該像側表面122為凹面，該第二鏡片120的物側表面121與像側表面122皆設為非球面。A second lens 120 having a negative refractive power is made of plastic. The object side surface 121 of the second lens 120 is a convex surface, the image side surface 122 is a concave surface, and the object side surface 121 and the image side of the second lens 120 are The surface 122 is set to be aspherical.
一具正屈折力的第三鏡片130，其材質為塑膠，該第三鏡片130的物側表面131為凹面、該像側表面132為凸面，該第三鏡片130的物側表面131與像側表面132皆設為非球面。A third lens 130 having a positive refractive power is made of plastic. The object side surface 131 of the third lens 130 is a concave surface, and the image side surface 132 is a convex surface. The object side surface 131 and the image side of the third lens 130 are The surface 132 is set to be aspherical.
一具正屈折力的第四鏡片140，其材質為塑膠，該第四鏡片140的物側表面141為凹面、該像側表面142為凸面，該第四鏡片140的物側表面141與像側表面142皆設為非球面。A fourth lens 140 having a positive refractive power is made of plastic, the object side surface 141 of the fourth lens 140 is a concave surface, the image side surface 142 is a convex surface, and the object side surface 141 and the image side of the fourth lens 140 are The surface 142 is set to be aspherical.
一具負屈折力第五鏡片150，其材質為塑膠，該第五鏡片150的物側表面151為凹面、該像側表面152為凸面，該第五鏡片150的物側表面151與像側表面152皆設為非球面。A fifth lens 150 having a negative refractive power is made of plastic. The object side surface 151 of the fifth lens 150 is a concave surface, and the image side surface 152 is a convex surface. The object side surface 151 and the image side surface of the fifth lens 150 are formed. 152 are all set to aspherical.
一具負屈折力的第六鏡片160，其材質為塑膠，該第六鏡片160的物側表面161為凸面、該像側表面162為凹面，該第六鏡片160的物側表面161與像側表面162皆設為非球面。A sixth lens 160 having a negative refractive power is made of plastic, the object side surface 161 of the sixth lens 160 is a convex surface, the image side surface 162 is a concave surface, and the object side surface 161 and the image side of the sixth lens 160 are The surface 162 is set to be aspherical.
一紅外線濾除濾光片(IR-filter)170，其設於該第六鏡片160像側表面162與一成像面180之間，該紅外線濾除濾光片170的材質為玻璃且不影響該六片式成像鏡片組的焦距。An infrared filter (IR-filter) 170 is disposed between the image side surface 162 of the sixth lens 160 and an imaging surface 180. The infrared filter filter 170 is made of glass and does not affect the image. The focal length of the six-piece imaging lens set.
上述之非球面曲線的方程式表示如下：
其中z為沿光軸190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、......為高階非球面係數。Where z is the position value at the height h of the position along the optical axis 190 with reference to the surface apex; k is the cone constant metric; c is the reciprocal of the radius of curvature; A, B, C, D, E, G, .. .... is a high order aspheric coefficient.
第一實施例中，該六片式成像鏡片組的整體合成焦距為f，其關係式為：f=3.7mm。In the first embodiment, the overall composite focal length of the six-piece imaging lens group is f, and the relationship is: f = 3.7 mm.
第一實施例中，該六片式成像鏡片組的整體光圈值(f-number)為Fno，其關係式為：Fno=2.2。In the first embodiment, the overall aperture value (f-number) of the six-piece imaging lens group is Fno, and the relationship is Fno=2.2.
第一實施例中，該六片式成像鏡片組的畫角為2ω，其關係式為：2ω=78°。In the first embodiment, the six-piece imaging lens group has an angle of 2ω, and the relationship is: 2ω=78°.
第一實施例中，該第一鏡片110的焦距為f1，該第二鏡片120的焦距為f2，其關係式為：|f1|/|f2|=0.534。In the first embodiment, the focal length of the first lens 110 is f1, and the focal length of the second lens 120 is f2, and the relationship is: |f1|/|f2|=0.534.
第一實施例中，該第二鏡片120的焦距為f2，該第三鏡片130的焦距為f3，其關係式為：|f2|/|f3|=1.013。In the first embodiment, the focal length of the second lens 120 is f2, and the focal length of the third lens 130 is f3, and the relationship is: |f2|/|f3|=1.013.
第一實施例中，該第五鏡片150的焦距為f5，該第六鏡片160的焦距為f6，其關係式為：|f5|/|f6|=2.719。In the first embodiment, the focal length of the fifth lens 150 is f5, and the focal length of the sixth lens 160 is f6, and the relationship is: |f5|/|f6|=2.719.
第一實施例中，該第一鏡片110、該第二鏡片120及該第三鏡片130的合成焦距為f123，該六片式成像鏡片組的整體合成焦距為f，其關係式為：|f123|/|f|=0.824。In the first embodiment, the composite focal length of the first lens 110, the second lens 120, and the third lens 130 is f123, and the overall composite focal length of the six-piece imaging lens group is f, and the relationship is: |f123 |/|f|=0.824.
第一實施例中，該第四鏡片140、該第五鏡片150及該第六鏡片160的合成焦距為f456，該六片式成像鏡片組的整體合成焦距為f，其關係式為：|f456|/|f|=1.117。In the first embodiment, the composite focal length of the fourth lens 140, the fifth lens 150, and the sixth lens 160 is f456, and the overall composite focal length of the six-piece imaging lens group is f, and the relationship is: |f456 |/|f|=1.117.
第一實施例中，該第一鏡片110的焦距為f1，該第二鏡片120及第三鏡片130的合成焦距為f23，其關係式為：|f1|/|f23|=0.148。In the first embodiment, the focal length of the first lens 110 is f1, and the combined focal length of the second lens 120 and the third lens 130 is f23, and the relationship is: |f1|/|f23|=0.148.
第一實施例中，該第三鏡片130及第四鏡片140的合成焦距為f34，該第五鏡片150及第六鏡片160的合成焦距為f56，其關係式為：|f34|/|f56|=0.731。In the first embodiment, the combined focal length of the third lens 130 and the fourth lens 140 is f34, and the combined focal length of the fifth lens 150 and the sixth lens 160 is f56, and the relationship is: |f34|/|f56| =0.731.
第一實施例中，該六片式成像鏡片組的整體合成焦距為f，該第一鏡片110的物側表面111到成像面180之間的距離為TL，其關係式為：|f/TL|=0.746。In the first embodiment, the overall composite focal length of the six-piece imaging lens group is f, and the distance between the object side surface 111 of the first lens 110 and the imaging surface 180 is TL, and the relationship is: |f/TL |=0.746.
第一實施例詳細的結構數據如同第1C圖中表一所示，其非球面數據如同第1D圖中表二所示，其中，曲率半徑、厚度及焦距的單位為公厘(mm)，且表一、二中所載之表面2、3分別為該第一鏡片110的物、像側表面111、112，表面4、5分別為該第二鏡片120的物、像側表面121、122，表面6、7 分別為該第三鏡片130的物、像側表面131、132，表面8、9分別為該第四鏡片140的物、像側表面141、142，表面10、11分別為該第五鏡片150的物、像側表面151、152，表面12、13分別為該第六鏡片160的物、像側表面161、162。The detailed structural data of the first embodiment is as shown in Table 1 of FIG. 1C, and the aspherical data is as shown in Table 2 of FIG. 1D, wherein the unit of curvature radius, thickness and focal length is in mm (mm), and The surfaces 2 and 3 shown in Tables 1 and 2 are respectively the object of the first lens 110, the image side surfaces 111 and 112, and the surfaces 4 and 5 are the objects of the second lens 120 and the image side surfaces 121 and 122, respectively. Surface 6, 7 The objects, the image side surfaces 131 and 132 of the third lens 130 are respectively the objects, the image side surfaces 141 and 142 of the fourth lens 140, and the surfaces 10 and 11 are respectively the fifth lens 150. The object, the image side surfaces 151, 152, and the surfaces 12, 13 are the object, image side surfaces 161, 162 of the sixth lens 160, respectively.
本發明第二實施例所提供的一種六片式成像鏡片組，請參閱第2A、2B圖，該第2A圖為本發明第二實施例之六片式成像鏡片組配置示意圖，第2B圖為本發明第二實施例像差曲線圖，第二實施例從物側A到像側B包含：一光欄200。For a six-piece imaging lens set provided by the second embodiment of the present invention, please refer to FIGS. 2A and 2B. FIG. 2A is a schematic view showing the configuration of a six-piece imaging lens set according to a second embodiment of the present invention, and FIG. According to a second embodiment of the present invention, the second embodiment includes a light barrier 200 from the object side A to the image side B.
一具正屈折力的第一鏡片210，其材質為塑膠，該第一鏡片210的物側表面211為凸面、該像側表面212為凹面，該第一鏡片210的物側表面211與像側表面212皆設為非球面。A first lens 210 having a positive refractive power is made of plastic. The object side surface 211 of the first lens 210 is a convex surface, and the image side surface 212 is a concave surface. The object side surface 211 and the image side of the first lens 210 are The surface 212 is set to be aspherical.
一具負屈折力的第二鏡片220，其材質為塑膠，該第二鏡片220的物側表面221為凸面、該像側表面222為凹面，該第二鏡片220的物側表面221與像側表面222皆設為非球面。A second lens 220 having a negative refractive power is made of plastic, the object side surface 221 of the second lens 220 is a convex surface, the image side surface 222 is a concave surface, and the object side surface 221 and the image side of the second lens 220 are The surface 222 is set to be aspherical.
一具正屈折力的第三鏡片230，其材質為塑膠，該第三鏡片230的物側表面231為凸面、該像側表面232為凸面，該第三鏡片230的物側表面231與像側表面232皆設為非球面。A third lens 230 having a positive refractive power is made of plastic. The object side surface 231 of the third lens 230 is a convex surface, the image side surface 232 is a convex surface, and the object side surface 231 and the image side of the third lens 230 are The surface 232 is set to be aspherical.
一具正屈折力的第四鏡片240，其材質為塑膠，該第四鏡片240的物側表面241為凹面、該像側表面242為凸面，該第四鏡片240的物側表面241與像側表面242皆設為非球面。A fourth lens 240 having a positive refractive power is made of plastic, the object side surface 241 of the fourth lens 240 is a concave surface, the image side surface 242 is a convex surface, and the object side surface 241 and the image side of the fourth lens 240 are The surface 242 is set to be aspherical.
一具正屈折力第五鏡片250，其材質為塑膠，該第五鏡片250的物側表面251為凹面、該像側表面252為凸面，該第五鏡片250的物側表面251與像側表面252皆設為非球面。A positive refractive power fifth lens 250 is made of plastic. The object side surface 251 of the fifth lens 250 is a concave surface, the image side surface 252 is a convex surface, and the object side surface 251 and the image side surface of the fifth lens 250 are formed. 252 are all set to aspherical.
一具負屈折力的第六鏡片260，其材質為塑膠，該第六鏡片260的物側表面261為凹面、該像側表面262為凹面，該第六鏡片260的物側表面261與像側表面262皆設為非球面。A sixth lens 260 having a negative refractive power is made of plastic, the object side surface 261 of the sixth lens 260 is a concave surface, the image side surface 262 is a concave surface, and the object side surface 261 and the image side of the sixth lens 260 are The surface 262 is set to be aspherical.
一紅外線濾除濾光片(IR-filter)270，其設於該第六鏡片260像側表面262與一成像面280之間，該紅外線濾除濾光片270的材質為玻璃且不影響該六片式成像鏡片組的焦距。An infrared filter (IR-filter) 270 is disposed between the image side surface 262 of the sixth lens 260 and an imaging surface 280. The material of the infrared filter filter 270 is glass and does not affect the The focal length of the six-piece imaging lens set.
上述之非球面曲線的方程式表示如下：
其中z為沿光軸290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、......為高階非球面係數。Where z is the position value at the height h of the position along the optical axis 290 with reference to the surface apex; k is the cone constant metric; c is the reciprocal of the radius of curvature; A, B, C, D, E, G, .. .... is a high order aspheric coefficient.
第二實施例中，該六片式成像鏡片組的整體合成焦距為f，其關係式為：f=3.55mm。In the second embodiment, the overall composite focal length of the six-piece imaging lens group is f, and the relationship is: f=3.55 mm.
第二實施例中，該六片式成像鏡片組的整體光圈值(f-number)為Fno，其關係式為：Fno=2.2。In the second embodiment, the overall aperture value (f-number) of the six-piece imaging lens group is Fno, and the relationship is Fno=2.2.
第二實施例中，該六片式成像鏡片組的畫角為2ω，其關係式為：2ω=78°。In the second embodiment, the six-piece imaging lens group has an angle of 2ω, and the relationship is: 2ω=78°.
第二實施例中，該第一鏡片210的焦距為f1，該第二鏡片220的焦距為f2，其關係式為：|f1|/|f2|=0.523。In the second embodiment, the focal length of the first lens 210 is f1, and the focal length of the second lens 220 is f2, and the relationship is: |f1|/|f2|=0.523.
第二實施例中，該第二鏡片220的焦距為f2，該第三鏡片230的焦距為f3，其關係式為：|f2|/|f3|=1.133。In the second embodiment, the focal length of the second lens 220 is f2, and the focal length of the third lens 230 is f3, and the relationship is: |f2|/|f3|=1.133.
第二實施例中，該第五鏡片250的焦距為f5，該第六鏡片260的焦距為f6，其關係式為：|f5|/|f6|=3.705。In the second embodiment, the focal length of the fifth lens 250 is f5, and the focal length of the sixth lens 260 is f6, and the relationship is: |f5|/|f6|=3.705.
第二實施例中，該第一鏡片210、該第二鏡片220及該第三鏡片230的合成焦距為f123，該六片式成像鏡片組的整體合成焦距為f，其關係式為：|f123|/|f|=0.911。In the second embodiment, the composite focal length of the first lens 210, the second lens 220, and the third lens 230 is f123, and the overall composite focal length of the six-piece imaging lens group is f, and the relationship is: |f123 |/|f|=0.911.
第二實施例中，該第四鏡片240、該第五鏡片250及該第六鏡片260的合成焦距為f456，該六片式成像鏡片組的整體合成焦距為f，其關係式為：|f456|/|f|=2.41。In the second embodiment, the composite focal length of the fourth lens 240, the fifth lens 250, and the sixth lens 260 is f456, and the overall composite focal length of the six-piece imaging lens group is f, and the relationship is: |f456 |/|f|=2.41.
第二實施例中，該第一鏡片210的焦距為f1，該第二鏡片220及第三鏡片230的合成焦距為f23，其關係式為：|f1|/|f23|=0.098。In the second embodiment, the focal length of the first lens 210 is f1, and the combined focal length of the second lens 220 and the third lens 230 is f23, and the relationship is: |f1|/|f23|=0.098.
第二實施例中，該第三鏡片230及第四鏡片240的合成焦距為f34，該第五鏡片250及第六鏡片260的合成焦距為f56，其關係式為：|f34|/|f56|=1.048。In the second embodiment, the combined focal length of the third lens 230 and the fourth lens 240 is f34, and the combined focal length of the fifth lens 250 and the sixth lens 260 is f56, and the relationship is: |f34|/|f56| =1.048.
第二實施例中，該六片式成像鏡片組的整體合成焦距為f，該第一鏡片210的物側表面211到成像面280之間的距離為TL，其關係式為：|f/TL|=0.724。In the second embodiment, the overall composite focal length of the six-piece imaging lens group is f, and the distance between the object-side surface 211 of the first lens 210 and the imaging surface 280 is TL, and the relationship is: |f/TL |=0.724.
第二實施例詳細的結構數據如同第2C圖中表三所示，其非球面數據如同第2D圖中表四所示，其中，曲率半徑、厚度及焦距的單位為公厘(mm)，且表三、四中所載之表面2、3分別為該第一鏡片210的物、像側表面211、212，表面4、5分別為該第二鏡片220的物、像側表面221、222，表面6、7分別為該第三鏡片230的物、像側表面231、232，表面8、9分別為該第四鏡片240的物、像側表面241、242，表面10、11分別為該第五鏡片250的物、像側表面251、252，表面12、13分別為該第六鏡片260的物、像側表面261、262。The detailed structural data of the second embodiment is as shown in Table 3 of FIG. 2C, and the aspherical data is as shown in Table 4 of FIG. 2D, wherein the unit of curvature radius, thickness and focal length is in mm (mm), and The surfaces 2 and 3 shown in Tables 3 and 4 are respectively the object of the first lens 210 and the image side surfaces 211 and 212, and the surfaces 4 and 5 are the objects of the second lens 220 and the image side surfaces 221 and 222, respectively. The surfaces 6 and 7 are respectively the object of the third lens 230 and the image side surfaces 231 and 232. The surfaces 8 and 9 are the objects of the fourth lens 240 and the image side surfaces 241 and 242, respectively. The surfaces 10 and 11 are respectively The object of the five lenses 250, the image side surfaces 251, 252, and the surfaces 12, 13 are the object, image side surfaces 261, 262 of the sixth lens 260, respectively.
值得說明的是，第1C圖中的表一、第1D圖中的表二、第2C圖中的表三、及第2D圖中的表四為本發明的六片式成像鏡片組各實施例的不同數值變化表，然本發明各實施例的數值變化皆屬實驗所得，即使使用不同數值，相同結構的產品仍屬於本發明的保護範疇。第5圖中的表五為各實施例中各關係式的對應表。It should be noted that Table 1 in FIG. 1C, Table 2 in FIG. 1D, Table 3 in FIG. 2C, and Table 4 in FIG. 2D are the embodiments of the six-piece imaging lens group of the present invention. The numerical values of the various embodiments of the present invention are experimentally obtained, and even if different values are used, the products of the same structure are still within the protection scope of the present invention. Table 5 in Fig. 5 is a correspondence table of the respective relational expressions in the respective embodiments.
本發明六片式成像鏡片組中，各鏡片的材質可為玻璃或塑膠，若各鏡片的材質為玻璃，則可以增加該六片式成像鏡片組屈折力配置的自由度，若各鏡片材質為塑膠，則可以有效降低生產成本。In the six-piece imaging lens group of the present invention, the material of each lens may be glass or plastic. If the material of each lens is glass, the degree of freedom of the refractive power configuration of the six-piece imaging lens group may be increased, if each lens material is Plastics can effectively reduce production costs.
本發明六片式成像鏡片組中，若鏡片表面係為凸面，則表示該鏡片表面於近光軸處為凸面；若鏡片表面係為凹面，則表示該鏡片表面於近光軸處為凹面。In the six-piece imaging lens set of the present invention, if the surface of the lens is convex, it indicates that the surface of the lens is convex at the near-optical axis; if the surface of the lens is concave, it indicates that the surface of the lens is concave at the near-optical axis.
100、200．．．光欄100, 200. . . Light bar
110、210．．．第一鏡片110, 210. . . First lens
111、211．．．第一鏡片的物側表面111, 211. . . Object side surface of the first lens
112、212．．．第一鏡片的像側表面112, 212. . . Image side surface of the first lens
120、220．．．第二鏡片120, 220. . . Second lens
121、221．．．第二鏡片的物側表面121, 221. . . Object side surface of the second lens
122、222．．．第二鏡片的像側表面122, 222. . . Image side surface of the second lens
130、230．．．第三鏡片130, 230. . . Third lens
131、231．．．第三鏡片的物側表面131, 231. . . Object side surface of the third lens
132、232．．．第三鏡片的像側表面132, 232. . . Image side surface of the third lens
140、240．．．第四鏡片140, 240. . . Fourth lens
141、241．．．第四鏡片的物側表面141, 241. . . Object side surface of the fourth lens
142、242．．．第四鏡片的像側表面142, 242. . . Image side surface of the fourth lens
150、250．．．第五鏡片150, 250. . . Fifth lens
151、251．．．第五鏡片的物側表面151, 251. . . Object side surface of the fifth lens
152、252．．．第五鏡片的像側表面152, 252. . . Image side surface of the fifth lens
160、260．．．第六鏡片160, 260. . . Sixth lens
161、261．．．第六鏡片的物側表面161, 261. . . Object side surface of the sixth lens
162、262．．．第六鏡片的像側表面162, 262. . . Image side surface of the sixth lens
170、270．．．紅外線濾除濾光片(IR Filter)170, 270. . . Infrared filter (IR Filter)
180、280．．．成像面180, 280. . . Imaging surface
190、290．．．光軸190, 290. . . Optical axis
f．．．整體合成焦距為f. . . The overall composite focal length is
Fno．．．整體光圈值為Fno. . . Overall aperture value
2ω．．．畫角為2ω. . . Drawing angle is
f1．．．第一鏡片的焦距為F1. . . The focal length of the first lens is
f2．．．第二鏡片的焦距為F2. . . The focal length of the second lens is
f3．．．第三鏡片的焦距為F3. . . The focal length of the third lens is
f5．．．第五鏡片的焦距為F5. . . The focal length of the fifth lens is
f6．．．第六鏡片的焦距為F6. . . The focal length of the sixth lens is
f123．．．第一鏡片、第二鏡片及第三鏡片的合成焦距為F123. . . The composite focal length of the first lens, the second lens, and the third lens is
f456．．．第四鏡片、第五鏡片及第六鏡片的合成焦距為F456. . . The combined focal length of the fourth lens, the fifth lens and the sixth lens is
f23．．．第二鏡片及第三鏡片的合成焦距為F23. . . The combined focal length of the second lens and the third lens is
f34．．．第三鏡片及第四鏡片的合成焦距為F34. . . The combined focal length of the third lens and the fourth lens is
f56．．．第五鏡片及第六鏡片的合成焦距為F56. . . The composite focal length of the fifth lens and the sixth lens is
TL．．．第一鏡片的物側表面到成像面之間的距離為TL. . . The distance from the object side surface of the first lens to the imaging surface is
第1A圖係本發明第一實施例之光學示意圖。Fig. 1A is an optical schematic view of a first embodiment of the present invention.
第1B圖係本發明第一實施例球面、非點及歪曲收差線圖。Fig. 1B is a diagram showing the spherical, non-dot and distortion line of the first embodiment of the present invention.
第1C圖係表一，為第一實施例光學數據。Figure 1C is a first embodiment of the optical data of the first embodiment.
第1D圖係表二，為第一實施例非球面數據。The first 1D diagram is Table 2, which is the aspherical data of the first embodiment.
第2A圖係本發明第二實施例之光學示意圖。Fig. 2A is an optical schematic view of a second embodiment of the present invention.
第2B圖係本發明第二實施例球面、非點及歪曲收差線圖。Fig. 2B is a diagram showing the spherical, non-dot and distortion line of the second embodiment of the present invention.
第2C圖係表三，為第二實施例光學數據。Figure 2C is a third embodiment of the optical data of the second embodiment.
第2D圖係表四，為第二實施例非球面數據。The second chart is Table 4, which is the aspherical data of the second embodiment.
第3圖係表五，為本發明相關關係式的數值資料。Figure 3 is a table showing the numerical data of the correlation equation of the present invention.
100．．．光欄100. . . Light bar
110．．．第一鏡片110. . . First lens
111．．．第一鏡片的物側表面111. . . Object side surface of the first lens
112．．．第一鏡片的像側表面112. . . Image side surface of the first lens
120．．．第二鏡片120. . . Second lens
121．．．第二鏡片的物側表面121. . . Object side surface of the second lens
122．．．第二鏡片的像側表面122. . . Image side surface of the second lens
130．．．第三鏡片130. . . Third lens
131．．．第三鏡片的物側表面131. . . Object side surface of the third lens
132．．．第三鏡片的像側表面132. . . Image side surface of the third lens
140．．．第四鏡片140. . . Fourth lens
141．．．第四鏡片的物側表面141. . . Object side surface of the fourth lens
142．．．第四鏡片的像側表面142. . . Image side surface of the fourth lens
150．．．第五鏡片150. . . Fifth lens
151．．．第五鏡片的物側表面151. . . Object side surface of the fifth lens
152．．．第五鏡片的像側表面152. . . Image side surface of the fifth lens
160．．．第六鏡片160. . . Sixth lens
161．．．第六鏡片的物側表面161. . . Object side surface of the sixth lens
162．．．第六鏡片的像側表面162. . . Image side surface of the sixth lens
170．．．紅外線濾除濾光片(IR Filter)170. . . Infrared filter (IR Filter)
180．．．成像面180. . . Imaging surface
190．．．光軸190. . . Optical axis
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| US9354423B2 (en) | 2013-11-08 | 2016-05-31 | Samsung Electro-Mechanics Co., Ltd. | Lens module |
| TWI489132B (en) * | 2014-01-10 | 2015-06-21 | Largan Precision Co Ltd | Imaging lens assembly, imaging device and mobile terminal |
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Also Published As
| Publication number | Publication date |
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| TW201331663A (en) | 2013-08-01 |
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