TW201619660A - Optical imaging lens - Google Patents
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Description
本發明係與光學成像鏡頭有關，特別是指一種應用於電子產品上的小型化三片式光學成像鏡頭。 The present invention relates to an optical imaging lens, and more particularly to a miniaturized three-piece optical imaging lens for use in an electronic product.
市場上的行動裝置也不斷的推陳出新，使得競爭越來越激烈。又隨著各種元件的技術成熟發展，使各產品間的差異越來越小，隨之而來的便只剩價格的競爭，所以，如何降低生產成本又仍可維持客戶對於優良品質的要求，便成為努力的目標。 The mobile devices on the market are constantly being updated, making the competition more and more intense. With the maturity of various components, the differences between products are getting smaller and smaller, and only the price competition is left behind. Therefore, how to reduce the production cost can still maintain the customer's requirements for good quality. It has become the goal of hard work.
高畫質的小型攝影鏡頭已是當前各種行動裝置的標準配備，隨著生產行動裝置的半導體製成的進步，使得電子感光元件上的畫素面積愈來越小，進而使得攝像鏡頭朝向五片或六片以上透鏡組合使有更精細的解析力，或提供更大的拍攝角度，如US20130265650、US20130329306。雖然也有三片式的設計，然而拍攝角度過小，光圈數也不足，如US8743486、US8094231等。 High-quality small photographic lenses are standard equipment for various mobile devices. With the advancement of semiconductor manufacturing of mobile devices, the area of pixels on electronic photosensitive elements is getting smaller and smaller, and the camera lens is oriented toward five pieces. Or a combination of more than six lenses for finer resolution or to provide a larger angle of view, such as US20130265650, US20130329306. Although there are also three-piece design, the shooting angle is too small, and the number of apertures is insufficient, such as US8743486, US8094231, and the like.
是以，持續開發出一種具有廣視角拍攝及高解析能力，並同時具有低製造成本及低製造公差感度的高畫質鏡頭，即是本發明研究的動機。 Therefore, it is the motivation of the present invention to continuously develop a high-quality lens with wide viewing angle and high resolution, and at the same time, low manufacturing cost and low manufacturing tolerance sensitivity.
本發明之目的在於提供一種光學成像鏡頭，尤指一種具有廣視角拍攝及高解析能力，並同時具有低製造成本及低製造公差感度的高畫質鏡頭。 An object of the present invention is to provide an optical imaging lens, and more particularly to a high-quality lens having a wide viewing angle and high resolution, and having low manufacturing cost and low manufacturing tolerance.
緣是，為了達成前述目的，依據本發明所提供一種光學成像鏡 頭，係包含有一光圈和一光學組，該光學組由物側至像側依序包含：一第一透鏡，具有正屈折力，其像側表面近光軸處為凸面，其物側表面及像側表面皆為非球面；一第二透鏡，具有正屈折力，其物側表面近光軸處為凹面，其像側表面近光軸處為凸面，且為塑膠材質，其物側表面及像側表面皆為非球面；一第三透鏡，具有負屈折力，其物側表面近光軸處為凸面，其像側表面近光軸處為凹面，且為塑膠材質，其物側表面及像側表面皆為非球面，且其物側表面及像側表面皆具有至少一個反曲點；該光圈，位於該第一透鏡的像側表面與被攝物之間；其中該第一透鏡的物側表面曲率半徑為R1，該第一透鏡的像側表面曲率半徑為R2，該第二透鏡於光軸上的厚度為CT2，該第三透鏡於光軸上的厚度為CT3，並滿足下列條件：-2.0<(R1+R2)/(R1-R2)<-0.2；2.0<CT2/CT3<4.0。 Therefore, in order to achieve the foregoing object, an optical imaging mirror according to the present invention is provided. The head includes an aperture and an optical group, and the optical group is sequentially included from the object side to the image side: a first lens having a positive refractive power, the image side surface having a convex surface at a near optical axis, and an object side surface thereof The image side surface is aspherical; a second lens has a positive refractive power, and the object side surface is concave at the near optical axis, and the image side surface is convex at the near optical axis, and is a plastic material, and the object side surface thereof The image side surface is aspherical; a third lens has a negative refractive power, and the object side surface is convex at the near optical axis, and the image side surface is concave at the near optical axis, and is made of a plastic material, and the object side surface thereof The image side surface is aspherical, and both the object side surface and the image side surface have at least one inflection point; the aperture is located between the image side surface of the first lens and the object; wherein the first lens The radius of curvature of the object side surface is R1, the radius of curvature of the image side surface of the first lens is R2, the thickness of the second lens on the optical axis is CT2, and the thickness of the third lens on the optical axis is CT3, and the following Conditions: -2.0 < (R1 + R2) / (R1 - R2) < -0.2; 2.0 < CT2 / CT3 < 4.0.
當(R1+R2)/(R1-R2)滿足上述條件時，可以降低鏡頭組的球差與像散。 When (R1+R2)/(R1-R2) satisfies the above conditions, the spherical aberration and astigmatism of the lens group can be reduced.
當CT2/CT3滿足上述條件時，可以使高階的像差較容易修正，提高成像品質。 When CT2/CT3 satisfies the above conditions, high-order aberrations can be easily corrected to improve image quality.
較佳地，該第二透鏡的物側表面曲率半徑為R3，該第二透鏡的像側表面曲率半徑為R4，並滿足下列條件：1.0<(R3+R4)/(R3-R4)<3.5。藉此，降低鏡頭組的像散。 Preferably, the object side surface of the second lens has a radius of curvature R3, and the image side surface of the second lens has a radius of curvature of R4 and satisfies the following condition: 1.0<(R3+R4)/(R3-R4)<3.5 . Thereby, the astigmatism of the lens group is reduced.
較佳地，該第三透鏡的像側表面曲率半徑為R6，該光學成像鏡頭的整體焦距為f，並滿足下列條件：0.1<R6/f<0.36。藉此，可以降低場曲及像散。 Preferably, the image side surface has a radius of curvature of R6, the optical imaging lens has an overall focal length of f, and satisfies the following condition: 0.1 < R6 / f < 0.36. Thereby, field curvature and astigmatism can be reduced.
較佳地，該第二透鏡於光軸上的厚度為CT2，該第一透鏡與第 二透鏡於光軸上的間隔距離為T12，並滿足下列條件：1.2<CT2/T12<2.5。藉此，可以增加視場角。 Preferably, the thickness of the second lens on the optical axis is CT2, the first lens and the first The distance between the two lenses on the optical axis is T12, and the following conditions are satisfied: 1.2 < CT2 / T12 < 2.5. Thereby, the angle of view can be increased.
較佳地，該第一透鏡的色散係數為V1，該第二透鏡的色散係數為V2，該第三透鏡的色散係數為V3，並滿足下列條件：20<V2-V3<40及| V1-V2 |<10。藉此，降低鏡頭組的色差。 Preferably, the first lens has a dispersion coefficient of V1, the second lens has a dispersion coefficient of V2, and the third lens has a dispersion coefficient of V3 and satisfies the following conditions: 20<V2-V3<40 and |V1- V2 |<10. Thereby, the chromatic aberration of the lens group is reduced.
較佳地，該第一透鏡與第二透鏡於光軸上的間隔距離為T12，該第二透鏡於光軸上的厚度為CT2，該第一透鏡的物側表面到該第三透鏡的像側表面於光軸上的距離為TD，並滿足下列條件：0.55<(T12+CT2)/TD<0.75。藉此，可在降低鏡頭組長度的同時使第二透鏡較易生產及組裝。 Preferably, the distance between the first lens and the second lens on the optical axis is T12, the thickness of the second lens on the optical axis is CT2, and the image of the object side surface of the first lens to the third lens The distance of the side surface on the optical axis is TD, and the following conditions are satisfied: 0.55 < (T12 + CT2) / TD < 0.75. Thereby, the second lens can be easily produced and assembled while reducing the length of the lens group.
較佳地，該光學成像鏡頭的整體焦距為f，該第二透鏡的焦距為f2，並滿足下列條件：0.3<f2/f<1.5。藉此，使第二透鏡折射力維持在適當範圍，可以平衡第一透鏡的折射力，並降低第一透鏡與第二透鏡的組裝感度。 Preferably, the optical imaging lens has an overall focal length of f, the second lens has a focal length of f2, and satisfies the following condition: 0.3 < f2 / f < 1.5. Thereby, maintaining the refractive power of the second lens in an appropriate range can balance the refractive power of the first lens and reduce the assembly sensitivity of the first lens and the second lens.
較佳地，該光學成像鏡頭的整體焦距為f，該第一透鏡的像側表面曲率半徑為R2，並滿足下列條件：-0.5<f/R2<1。藉此，使第一透鏡的像側表面面偏心感度降低。 Preferably, the optical imaging lens has an overall focal length of f, and the image side surface of the first lens has a radius of curvature of R2 and satisfies the following condition: -0.5 < f / R2 < 1. Thereby, the image side surface eccentricity of the first lens is lowered.
較佳地，該第二透鏡的折射率為N2，該第三透鏡的折射率為N3，並滿足下列條件：1.5<N2<1.58及1.57<N3<1.68。藉此，適當選擇第二透鏡和第三透鏡為塑膠材料。 Preferably, the second lens has a refractive index of N2, and the third lens has a refractive index of N3 and satisfies the following conditions: 1.5 < N2 < 1.58 and 1.57 < N3 < 1.68. Thereby, the second lens and the third lens are appropriately selected as a plastic material.
另外，同樣為了達成前述目的，依據本發明所提供之一種光學成像鏡頭，係包含有一光圈和一光學組，該光學組由物側至像側依序包含：一第一透鏡，具有正屈折力，其物側表面近光軸處為凸面，其物側表面及像側表面皆為非球面；一第二透鏡，具有正屈折力，其物側表面近光軸處為凹面，其像側表面近光軸處為凸面，且為塑膠材質，其物側表面及像側 表面皆為非球面；一第三透鏡，具有負屈折力，其物側表面近光軸處為凸面，其像側表面近光軸處為凹面，且為塑膠材質，其物側表面及像側表面皆為非球面，且其物側表面及像側表面皆具有至少一個反曲點；其中該第二透鏡於光軸上的厚度為CT2，該第三透鏡於光軸上的厚度為CT3，該第一透鏡的色散係數為V1，該第二透鏡的色散係數為V2，該第三透鏡的色散係數為V3，該光圈到第三透鏡的像側表面於光軸上的距離為SD，該第一透鏡的物側表面到該第三透鏡的像側表面於光軸上的距離為TD，並滿足下列條件：2.0<CT2/CT3<4.0；20<V2-V3<40及| V1-V2 |<10；0.9<SD/TD<1.05。 In addition, in order to achieve the foregoing objective, an optical imaging lens according to the present invention includes an aperture and an optical group, and the optical group includes, in order from the object side to the image side, a first lens having a positive refractive power. The object side surface is convex at the near optical axis, and the object side surface and the image side surface are all aspherical surfaces; a second lens has a positive refractive power, and the object side surface has a concave surface at the near optical axis, and the image side surface thereof The near-optical axis is convex and is made of plastic material, and its object side surface and image side The surface is aspherical; a third lens has a negative refractive power, and the object side surface is convex at the near optical axis, and the image side surface is concave at the near optical axis, and is a plastic material, and the object side surface and the image side thereof The surface is aspherical, and both the object side surface and the image side surface have at least one inflection point; wherein the thickness of the second lens on the optical axis is CT2, and the thickness of the third lens on the optical axis is CT3, The dispersion coefficient of the first lens is V1, the dispersion coefficient of the second lens is V2, the dispersion coefficient of the third lens is V3, and the distance from the aperture to the image side surface of the third lens on the optical axis is SD. The distance from the object side surface of the first lens to the image side surface of the third lens on the optical axis is TD, and satisfies the following conditions: 2.0<CT2/CT3<4.0; 20<V2-V3<40 and |V1-V2 |<10;0.9<SD/TD<1.05.
當CT2/CT3滿足上述條件時，可以使高階的像差較容易修正，提高成像品質。 When CT2/CT3 satisfies the above conditions, high-order aberrations can be easily corrected to improve image quality.
當V2-V3、| V1-V2 |滿足上述條件時，可以降低鏡頭組的色差。 When V2-V3, |V1-V2| satisfy the above conditions, the chromatic aberration of the lens group can be reduced.
當SD/TD滿足上述條件時，藉此，適當配置光圈位置，可使進入位於像面位置的電子感光元件的主光線符合電子感光元件的需求，減少色偏移現象，並使像面周邊有較佳的相對照度，減少暗角產生。 When the SD/TD satisfies the above conditions, by properly arranging the aperture position, the chief ray entering the electronic photosensitive element located at the image plane position can meet the requirements of the electronic photosensitive element, thereby reducing the color shift phenomenon and causing the image surface to be surrounded. Better contrast, reducing vignetting.
較佳地，該第三透鏡的物側表面曲率半徑為R5，該第三透鏡的像側表面曲率半徑為R6，並滿足下列條件：1.3<(R5+R6)/(R5-R6)<7。藉此，可以修正場曲。 Preferably, the curvature radius of the object side surface of the third lens is R5, and the radius of curvature of the image side surface of the third lens is R6, and the following condition is satisfied: 1.3<(R5+R6)/(R5-R6)<7 . Thereby, the field curvature can be corrected.
較佳地，該第二透鏡像側表面於光軸上交點至該像側表面最大有效徑位置於光軸上的位移距離為SAG_22，該第一透鏡的物側表面到該第三透鏡的像側表面於光軸上的距離為TD，並滿足下列條件：0.2<| SAG22/TD |<0.4。藉此，可有效的降低因第三透鏡周邊為正折射力所引起之橫向 色差(chromatic aberration of magnification)。 Preferably, the displacement distance of the second lens image side surface on the optical axis to the image side surface maximum effective diameter position on the optical axis is SAG_22, and the object side surface of the first lens to the image of the third lens The distance of the side surface on the optical axis is TD, and the following conditions are satisfied: 0.2<| SAG22/TD |<0.4. Thereby, the lateral direction caused by the positive refractive power of the periphery of the third lens can be effectively reduced. Chromatic aberration of magnification.
較佳地，該光學成像鏡頭的整體焦距為f，該第一透鏡的物側 表面曲率半徑為R1，並滿足下列條件：0.3<R1/f<1.5。藉此，使第一透鏡的物側表面面偏心感度降低，並可縮短鏡頭組長度。 Preferably, the overall focal length of the optical imaging lens is f, the object side of the first lens The radius of curvature of the surface is R1 and the following conditions are satisfied: 0.3 < R1/f < 1.5. Thereby, the eccentricity of the object side surface of the first lens is lowered, and the length of the lens group can be shortened.
較佳地，該光學成像鏡頭的整體焦距為f，該第二透鏡的焦距 為f2，並滿足下列條件：0.3<f2/f<1.5。藉此，使第二透鏡折射力維持在適當範圍，可以平衡第一透鏡的折射力，並降低第一透鏡與第二透鏡的組裝感度。 Preferably, the overall focal length of the optical imaging lens is f, and the focal length of the second lens It is f2 and satisfies the following conditions: 0.3 < f2 / f < 1.5. Thereby, maintaining the refractive power of the second lens in an appropriate range can balance the refractive power of the first lens and reduce the assembly sensitivity of the first lens and the second lens.
較佳地，該第一透鏡的物側表面曲率半徑為R1，該第一透鏡的像側表面曲率半徑為R2，並滿足下列條件：-2.0<(R1+R2)/(R1-R2)<-0.2。藉此，降低鏡頭組的球差與像散。 Preferably, the curvature radius of the object side surface of the first lens is R1, and the radius of curvature of the image side surface of the first lens is R2, and the following condition is satisfied: -2.0<(R1+R2)/(R1-R2)< -0.2. Thereby, the spherical aberration and astigmatism of the lens group are reduced.
較佳地，該成像光學鏡頭組的最大視角為FOV，並滿足下列條件：75<FOV<95。藉此，該成像光學鏡頭組可提供較大視角，以便拍攝更寬廣範圍的影像。 Preferably, the maximum viewing angle of the imaging optical lens group is FOV and the following conditions are satisfied: 75 < FOV < 95. Thereby, the imaging optical lens group can provide a larger viewing angle for capturing a wider range of images.
較佳地，該第二透鏡於光軸上的厚度為CT2，該第一透鏡與第二透鏡於光軸上的間隔距離為T12，並滿足下列條件：1.2<CT2/T12<2.5。藉此，可以增加視場角。 Preferably, the thickness of the second lens on the optical axis is CT2, and the distance between the first lens and the second lens on the optical axis is T12, and the following condition is satisfied: 1.2<CT2/T12<2.5. Thereby, the angle of view can be increased.
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，茲舉九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 and the accompanying drawings.
100、200、300、400、500、600、700、800、900‧‧‧光圈 100, 200, 300, 400, 500, 600, 700, 800, 900‧ ‧ aperture
110、210、310、410、510、610、710、810、910‧‧‧第一透鏡 110, 210, 310, 410, 510, 610, 710, 810, 910‧‧‧ first lens
111、211、311、411、511、611、711、811、911‧‧‧物側表面 111, 211, 311, 411, 511, 611, 711, 811, 911 ‧ ‧ ‧ side surface
112、212、312、412、512、612、712、812、912‧‧‧像側表面 112, 212, 312, 412, 512, 612, 712, 812, 912‧‧‧ image side surface
120、220、320、420、520、620、720、820、920‧‧‧第二透鏡 120, 220, 320, 420, 520, 620, 720, 820, 920‧‧‧ second lens
121、221、321、421、521、621、721、821、921‧‧‧物側表面 121, 221, 321, 421, 521, 621, 721, 821, 921 ‧ ‧ ‧ side surface
122、222、322、422、522、622、722、822、922‧‧‧像側表面 122, 222, 322, 422, 522, 622, 722, 822, 922‧‧‧ image side surface
130、230、330、430、530、630、730、830、930‧‧‧第三透鏡 130, 230, 330, 430, 530, 630, 730, 830, 930‧‧‧ third lens
131、231、331、431、531、631、731、831、931‧‧‧物側表面 131, 231, 331, 431, 531, 631, 731, 831, 931 ‧ ‧ ‧ side surface
132、232、332、432、532、632、732、832、932‧‧‧像側表面 132, 232, 332, 432, 532, 632, 732, 832, 932 ‧ ‧ side surface
170、270、370、470、570、670、770、870、970‧‧‧紅外線濾除濾光元件 170, 270, 370, 470, 570, 670, 770, 870, 970 ‧ ‧ infrared filter components
180、280、380、480、580、680、780、880、980‧‧‧成像面 180, 280, 380, 480, 580, 680, 780, 880, 980 ‧ ‧ imaging surface
190、290、390、490、590、690、790、890、990‧‧‧光軸 190, 290, 390, 490, 590, 690, 790, 890, 990 ‧ ‧ optical axis
f‧‧‧光學成像鏡頭的焦距 f‧‧‧The focal length of the optical imaging lens
f2‧‧‧第二透鏡的焦距 F2‧‧‧The focal length of the second lens
Fno‧‧‧光學成像鏡頭的光圈值 Aperture value of Fno‧‧‧ optical imaging lens
HFOV‧‧‧光學成像鏡頭中最大視場角的一半 Half of the maximum field of view in a HFOV‧‧ optical imaging lens
FOV‧‧‧光學成像鏡頭的最大視場角 Maximum field of view of FOV‧‧· optical imaging lenses
R1‧‧‧第一透鏡的物側表面曲率半徑 R1‧‧‧ radius of curvature of the object side surface of the first lens
R2‧‧‧第一透鏡的像側表面曲率半徑 R2‧‧‧ Image side surface radius of curvature of the first lens
R3‧‧‧第二透鏡的物側表面曲率半徑 R3‧‧‧ radius of curvature of the object side surface of the second lens
R4‧‧‧第二透鏡的物側表面曲率半徑 R4‧‧‧The radius of curvature of the object side surface of the second lens
R5‧‧‧第三透鏡的物側表面曲率半徑 The radius of curvature of the object side surface of the R5‧‧‧ third lens
R6‧‧‧第三透鏡的物側表面曲率半徑 The radius of curvature of the object side surface of the R6‧‧‧ third lens
T12‧‧‧第一透鏡與第二透鏡於光軸上的間隔距離 T12‧‧‧The distance between the first lens and the second lens on the optical axis
V1‧‧‧第一透鏡的色散係數 V1‧‧‧Dispersion coefficient of the first lens
V2‧‧‧第二透鏡的色散係數 V2‧‧‧Dispersion coefficient of the second lens
V3‧‧‧第三透鏡的色散係數 V3‧‧‧Dispersion coefficient of the third lens
CT2‧‧‧第二透鏡於光軸上的厚度 CT2‧‧‧ thickness of the second lens on the optical axis
CT3‧‧‧第三透鏡於光軸上的厚度 CT3‧‧‧ thickness of the third lens on the optical axis
TD‧‧‧第一透鏡的物側表面到第三透鏡的像側表面於光軸上的距離 TD‧‧‧distance from the object side surface of the first lens to the image side surface of the third lens on the optical axis
SD‧‧‧光圈到第三透鏡的像側表面於光軸上的距離 SD‧‧‧The distance from the aperture to the image side surface of the third lens on the optical axis
SAG_22‧‧‧第二透鏡像側表面於光軸上交點至像側表面最大有效徑位置於光軸上的位移距離 SAG_22‧‧‧The distance between the intersection of the side surface of the second lens image on the optical axis and the maximum effective diameter of the image side surface on the optical axis
N2‧‧‧第二透鏡的折射率 N2‧‧‧ refractive index of the second lens
N3‧‧‧第三透鏡的折射率 N3‧‧‧refractive index of the third lens
圖1A係本發明第一實施例之光學成像鏡頭的示意圖。 Fig. 1A is a schematic view of an optical imaging lens according to a first embodiment of the present invention.
圖1B由左至右依序為第一實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。 1B is a spherical aberration, astigmatism, and distortion curve of the optical imaging lens of the first embodiment, from left to right.
圖2A係本發明第二實施例之光學成像鏡頭的示意圖。 2A is a schematic view of an optical imaging lens of a second embodiment of the present invention.
圖2B由左至右依序為第二實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。 2B is a spherical aberration, astigmatism, and distortion curve of the optical imaging lens of the second embodiment, from left to right.
圖3A係本發明第三實施例之光學成像鏡頭的示意圖。 Fig. 3A is a schematic view showing an optical imaging lens of a third embodiment of the present invention.
圖3B由左至右依序為第三實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。 3B is a spherical aberration, astigmatism, and distortion curve of the optical imaging lens of the third embodiment, from left to right.
圖4A係本發明第四實施例之光學成像鏡頭的示意圖。 4A is a schematic view of an optical imaging lens of a fourth embodiment of the present invention.
圖4B由左至右依序為第四實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。 4B is a spherical aberration, astigmatism, and distortion curve of the optical imaging lens of the fourth embodiment, from left to right.
圖5A係本發明第五實施例之光學成像鏡頭的示意圖。 Fig. 5A is a schematic view showing an optical imaging lens of a fifth embodiment of the present invention.
圖5B由左至右依序為第五實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。 Fig. 5B is a spherical aberration, astigmatism, and distortion curve of the optical imaging lens of the fifth embodiment, from left to right.
圖6A係本發明第六實施例之光學成像鏡頭的示意圖。 Fig. 6A is a schematic view showing an optical imaging lens of a sixth embodiment of the present invention.
圖6B由左至右依序為第六實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。 Fig. 6B is a spherical aberration, astigmatism, and distortion curve of the optical imaging lens of the sixth embodiment, from left to right.
圖7A係本發明第七實施例之光學成像鏡頭的示意圖。 Fig. 7A is a schematic view showing an optical imaging lens of a seventh embodiment of the present invention.
圖7B由左至右依序為第七實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。 7B is a spherical aberration, astigmatism, and distortion curve of the optical imaging lens of the seventh embodiment, from left to right.
圖8A係本發明第八實施例之光學成像鏡頭的示意圖。 Fig. 8A is a schematic view showing an optical imaging lens of an eighth embodiment of the present invention.
圖8B由左至右依序為第八實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。 Fig. 8B is a spherical aberration, astigmatism, and distortion curve of the optical imaging lens of the eighth embodiment, from left to right.
圖9A係本發明第九實施例之光學成像鏡頭的示意圖。 Figure 9A is a schematic view of an optical imaging lens of a ninth embodiment of the present invention.
圖9B由左至右依序為第九實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。 Fig. 9B is a spherical aberration, astigmatism, and distortion diagram of the optical imaging lens of the ninth embodiment, from left to right.
圖10係繪示依照圖1A之第二透鏡的SAG_22的示意圖。 FIG. 10 is a schematic diagram of SAG_22 according to the second lens of FIG. 1A.
<第一實施例> <First Embodiment>
請參照圖1A及圖1B，其中圖1A繪示依照本發明第一實施例之 光學成像鏡頭的示意圖，圖1B由左至右依序為第一實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。由圖1A可知，光學成像鏡頭係包含有一光圈100和一光學組，該光學組由物側至像側依序包含第一透鏡110、第二透鏡120、第三透鏡130、紅外線濾除濾光元件170、以及成像面180，其中該光學成像鏡頭中具屈折力的透鏡為三片。該光圈100設置在該第一透鏡110的像側表面112與被攝物之間。 Please refer to FIG. 1A and FIG. 1B , wherein FIG. 1A illustrates a first embodiment of the present invention. Schematic diagram of the optical imaging lens, FIG. 1B is a spherical aberration, astigmatism, and distortion curve of the optical imaging lens of the first embodiment from left to right. As can be seen from FIG. 1A, the optical imaging lens includes an aperture 100 and an optical group. The optical group sequentially includes a first lens 110, a second lens 120, a third lens 130, and an infrared filter filter from the object side to the image side. The element 170, and the imaging surface 180, wherein the lens having a refractive power in the optical imaging lens is three pieces. The aperture 100 is disposed between the image side surface 112 of the first lens 110 and the subject.
該第一透鏡110具有正屈折力，且為塑膠材質，其物側表面111 近光軸190處為凸面，其像側表面112近光軸190處為凸面，且該物側表面111及像側表面112皆為非球面。 The first lens 110 has a positive refractive power and is made of a plastic material, and the object side surface 111 thereof The near optical axis 190 is a convex surface, and the image side surface 112 is convex at the near optical axis 190, and the object side surface 111 and the image side surface 112 are all aspherical.
該第二透鏡120具有正屈折力，且為塑膠材質，其物側表面121 近光軸190處為凹面，其像側表面122近光軸190處為凸面，且該物側表面121及像側表面122皆為非球面。 The second lens 120 has a positive refractive power and is made of a plastic material, and the object side surface 121 The near optical axis 190 is a concave surface, and the image side surface 122 is convex at the near optical axis 190, and the object side surface 121 and the image side surface 122 are all aspherical.
該第三透鏡130具有負屈折力，且為塑膠材質，其物側表面131 近光軸190處為凸面，其像側表面132近光軸190處為凹面，且該物側表面131及像側表面132皆為非球面，且該物側表面131及該像側表面132皆具有一個以上反曲點。 The third lens 130 has a negative refractive power and is made of a plastic material, and the object side surface 131 The near-optical axis 190 is a convex surface, and the image-side surface 132 is concave at the near-optical axis 190, and the object-side surface 131 and the image-side surface 132 are all aspherical surfaces, and the object-side surface 131 and the image-side surface 132 are both Has more than one inflection point.
該紅外線濾除濾光元件170為玻璃材質，其設置於該第三透鏡 130及成像面180間且不影響該光學成像鏡頭的焦距。 The infrared filter element 170 is made of glass and is disposed on the third lens. 130 and the imaging surface 180 do not affect the focal length of the optical imaging lens.
上述各透鏡的非球面的曲線方程式表示如下：
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；c是透鏡表面靠近光軸190的曲率，並為曲率半徑(R)的倒數(c=1/R)，R為透鏡表面靠近光軸190的曲率半徑，h是透鏡表面距離光軸190的垂直距離，k為圓錐係數(conic constant)，而A4，A6，A8，A10，A12，A14分別是四、六、八、十、十二、及十四階的非球面係數。 Where z is the position value with reference to the surface apex at a position of height h in the direction of the optical axis 190; c is the curvature of the lens surface near the optical axis 190, and is the reciprocal of the radius of curvature (R) (c = 1/R) R is the radius of curvature of the lens surface near the optical axis 190, h is the vertical distance of the lens surface from the optical axis 190, k is a conic constant, and A 4 , A 6 , A 8 , A 10 , A 12 , A 14 is an aspheric coefficient of four, six, eight, ten, twelve, and fourteenth steps, respectively.
第一實施例的光學成像鏡頭中，光學成像鏡頭的焦距為f，光 學成像鏡頭的光圈值(f-number)為Fno，光學成像鏡頭中最大視場角的一半為HFOV，其數值如下：f=1.94(公厘)；Fno=2.4；以及HFOV=43.55(度)。 In the optical imaging lens of the first embodiment, the focal length of the optical imaging lens is f, light The aperture value (f-number) of the imaging lens is Fno, and half of the maximum field of view in the optical imaging lens is HFOV, and the values are as follows: f=1.94 (mm); Fno=2.4; and HFOV=43.55 (degrees) .
第一實施例的光學成像鏡頭中，該光學成像鏡頭的最大視場角 為FOV，並滿足下列條件：FOV=87.10。 The maximum angle of view of the optical imaging lens in the optical imaging lens of the first embodiment It is FOV and meets the following conditions: FOV=87.10.
第一實施例的光學成像鏡頭中，該第一透鏡110的物側表面111 曲率半徑為R1，該第一透鏡110的像側表面112曲率半徑為R2，並滿足下列條件：(R1+R2)/(R1-R2)=-1.41。 In the optical imaging lens of the first embodiment, the object side surface 111 of the first lens 110 The radius of curvature is R1, and the image side surface 112 of the first lens 110 has a radius of curvature of R2 and satisfies the following condition: (R1 + R2) / (R1 - R2) = -1.41.
第一實施例的光學成像鏡頭中，該第二透鏡120於光軸190上的 厚度為CT2，該第三透鏡130於光軸190上的厚度為CT3，並滿足下列條件：CT2/CT3=3.28。 In the optical imaging lens of the first embodiment, the second lens 120 is on the optical axis 190. The thickness is CT2, the thickness of the third lens 130 on the optical axis 190 is CT3, and the following condition is satisfied: CT2/CT3 = 3.28.
第一實施例的光學成像鏡頭中，該第二透鏡120的物側表面121 曲率半徑為R3，該第二透鏡120的像側表面122曲率半徑為R4，並滿足下列條件：(R3+R4)/(R3-R4)=2.43。 In the optical imaging lens of the first embodiment, the object side surface 121 of the second lens 120 The radius of curvature is R3, and the image side surface 122 of the second lens 120 has a radius of curvature of R4 and satisfies the following condition: (R3 + R4) / (R3 - R4) = 2.43.
第一實施例的光學成像鏡頭中，該第三透鏡130的像側表面132 曲率半徑為R6，該光學成像鏡頭的整體焦距為f，並滿足下列條件：R6/f=0.23。 In the optical imaging lens of the first embodiment, the image side surface 132 of the third lens 130 The radius of curvature is R6, and the overall focal length of the optical imaging lens is f, and the following conditions are satisfied: R6/f=0.23.
第一實施例的光學成像鏡頭中，該第二透鏡120於光軸190上的厚度為CT2，該第一透鏡110與第二透鏡120於光軸190上的間隔距離為T12， 並滿足下列條件：CT2/T12=2.29。 In the optical imaging lens of the first embodiment, the thickness of the second lens 120 on the optical axis 190 is CT2, and the distance between the first lens 110 and the second lens 120 on the optical axis 190 is T12. And the following conditions are met: CT2/T12=2.29.
第一實施例的光學成像鏡頭中，該第一透鏡110的色散係數為 V1，該第二透鏡120的色散係數為V2，該第三透鏡130的色散係數為V3，並滿足下列條件：V2-V3=35.00及| V1-V2 |=0。 In the optical imaging lens of the first embodiment, the dispersion coefficient of the first lens 110 is V1, the second lens 120 has a dispersion coefficient of V2, and the third lens 130 has a dispersion coefficient of V3 and satisfies the following conditions: V2-V3=35.00 and |V1-V2|=0.
第一實施例的光學成像鏡頭中，該第一透鏡110與第二透鏡120 於光軸190上的間隔距離為T12，該第二透鏡120於光軸190上的厚度為CT2，該第一透鏡110的物側表面111到該第三透鏡130的像側表面132於光軸190上的距離為TD，並滿足下列條件：(T12+CT2)/TD=0.64。 In the optical imaging lens of the first embodiment, the first lens 110 and the second lens 120 The distance between the second lens 120 on the optical axis 190 is CT2, the object side surface 111 of the first lens 110 to the image side surface 132 of the third lens 130 is on the optical axis. The distance on 190 is TD and the following conditions are met: (T12 + CT2) / TD = 0.64.
第一實施例的光學成像鏡頭中，該光學成像鏡頭的整體焦距為 f，該第二透鏡120的焦距為f2，並滿足下列條件：f2/f=0.78。 In the optical imaging lens of the first embodiment, the overall focal length of the optical imaging lens is f, the focal length of the second lens 120 is f2, and the following condition is satisfied: f2/f = 0.78.
第一實施例的光學成像鏡頭中，該光學成像鏡頭的整體焦距為 f，該第一透鏡110的像側表面112曲率半徑為R2，並滿足下列條件：f/R2=-0.22。 In the optical imaging lens of the first embodiment, the overall focal length of the optical imaging lens is f, the image side surface 112 of the first lens 110 has a radius of curvature of R2 and satisfies the following condition: f/R2 = -0.22.
第一實施例的光學成像鏡頭中，該第二透鏡120的折射率為 N2，該第三透鏡130的折射率為N3，並滿足下列條件：N2=1.515及N3=1.642。 In the optical imaging lens of the first embodiment, the refractive index of the second lens 120 is N2, the third lens 130 has a refractive index of N3 and satisfies the following conditions: N2=1.515 and N3=1.642.
第一實施例的光學成像鏡頭中，該光圈100到第三透鏡130的像 側表面132於光軸190上的距離為SD，該第一透鏡110的物側表面111到該第三透鏡130的像側表面132於光軸190上的距離為TD，並滿足下列條件：SD/TD=1.00。 In the optical imaging lens of the first embodiment, the image of the aperture 100 to the third lens 130 The distance of the side surface 132 on the optical axis 190 is SD, and the distance from the object side surface 111 of the first lens 110 to the image side surface 132 of the third lens 130 on the optical axis 190 is TD, and the following conditions are satisfied: SD /TD=1.00.
第一實施例的光學成像鏡頭中，該第三透鏡130的物側表面131 曲率半徑為R5，該第三透鏡130的像側表面132曲率半徑為R6，並滿足下列條件：(R5+R6)/(R5-R6)=2.82。 In the optical imaging lens of the first embodiment, the object side surface 131 of the third lens 130 The radius of curvature is R5, and the image side surface 132 of the third lens 130 has a radius of curvature of R6 and satisfies the following condition: (R5 + R6) / (R5 - R6) = 2.82.
請參照圖10，第一實施例的光學成像鏡頭中，該第二透鏡120 像側表面122於光軸190上交點至該像側表面122最大有效徑位置於光軸190 上的位移距離為SAG_22，該第一透鏡110的物側表面111到該第三透鏡130的像側表面132於光軸190上的距離為TD，並滿足下列條件：| SAG22/TD |=0.22。 Referring to FIG. 10, in the optical imaging lens of the first embodiment, the second lens 120 The image side surface 122 intersects on the optical axis 190 to the image side surface 122 with the largest effective diameter position on the optical axis 190. The upper displacement distance is SAG_22, and the distance from the object side surface 111 of the first lens 110 to the image side surface 132 of the third lens 130 on the optical axis 190 is TD, and the following conditions are satisfied: | SAG22/TD |=0.22 .
第一實施例的光學成像鏡頭中，該光學成像鏡頭的整體焦距為f，該第一透鏡110的物側表面111曲率半徑為R1，並滿足下列條件：R1/f=0.78。 In the optical imaging lens of the first embodiment, the optical imaging lens has an overall focal length f, and the object side surface 111 of the first lens 110 has a radius of curvature of R1 and satisfies the following condition: R1/f = 0.78.
再配合參照下列表1及表2。 Refer to Table 1 and Table 2 below for reference.
表1為圖1A第一實施例詳細的結構數據，其中曲率半徑、厚度 及焦距的單位為mm，且表面0-9依序表示由物側至像側的表面。表2為第一實施例中的非球面數據，其中，k表非球面曲線方程式中的錐面係數，A4-A14則表示各表面第4-14階非球面係數。此外，以下各實施例表格乃對應各實施例的示意圖與像差曲線圖，表格中數據的定義皆與第一實施例的表1、及表2的定義相同，在此不加贅述。 Table 1 is the detailed structural data of the first embodiment of Fig. 1A, wherein the radius of curvature and thickness And the unit of the focal length is mm, and the surfaces 0-9 sequentially represent the surface from the object side to the image side. Table 2 shows the aspherical data in the first embodiment, in which the taper coefficients in the equation of the aspherical curve of k, and A4-A14 represent the aspherical coefficients of the fourth to fourth orders of each surface. In addition, the table of the following embodiments corresponds to the schematic diagram and the aberration diagram of each embodiment, and the definition of the data in the table is the same as the definitions of Table 1 and Table 2 of the first embodiment, and details are not described herein.
<第二實施例> <Second embodiment>
請參照圖2A及圖2B，其中圖2A繪示依照本發明第二實施例之光學成像鏡頭的示意圖，圖2B由左至右依序為第二實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。由圖2A可知，光學成像鏡頭係包含有一光圈200和一光學組，該光學組由物側至像側依序包含第一透鏡210、第二透鏡220、第三透鏡230、紅外線濾除濾光元件270、以及成像面280，其中該光學成像鏡頭中具屈折力的透鏡為三片。該光圈200設置在該第一透鏡210的像側表面212與被攝物之間。 2A and FIG. 2B, FIG. 2A is a schematic diagram of an optical imaging lens according to a second embodiment of the present invention, and FIG. 2B is a spherical aberration and astigmatism of the optical imaging lens of the second embodiment from left to right. And the distortion curve. As can be seen from FIG. 2A, the optical imaging lens includes an aperture 200 and an optical group. The optical group sequentially includes a first lens 210, a second lens 220, a third lens 230, and an infrared filter filter from the object side to the image side. Element 270, and imaging surface 280, wherein the lens of the optical imaging lens has a refractive power of three. The aperture 200 is disposed between the image side surface 212 of the first lens 210 and the object.
該第一透鏡210具有正屈折力，且為塑膠材質，其物側表面211近光軸290處為凸面，其像側表面212近光軸290處為凸面，且該物側表面211及像側表面212皆為非球面。 The first lens 210 has a positive refractive power and is made of a plastic material. The object side surface 211 is convex at the near optical axis 290, and the image side surface 212 is convex at the near optical axis 290, and the object side surface 211 and the image side are Surface 212 is aspherical.
該第二透鏡220具有正屈折力，且為塑膠材質，其物側表面221近光軸290處為凹面，其像側表面222近光軸290處為凸面，且該物側表面221 及像側表面222皆為非球面。 The second lens 220 has a positive refractive power and is made of a plastic material. The object side surface 221 is concave at the near optical axis 290, and the image side surface 222 is convex at the near optical axis 290, and the object side surface 221 The image side surface 222 is aspherical.
該第三透鏡230具有負屈折力，且為塑膠材質，其物側表面231近光軸290處為凸面，其像側表面232近光軸290處為凹面，且該物側表面231及像側表面232皆為非球面，且該物側表面231及該像側表面232皆具有一個以上反曲點。 The third lens 230 has a negative refractive power and is made of a plastic material. The object side surface 231 is convex at the near optical axis 290, and the image side surface 232 is concave at the near optical axis 290, and the object side surface 231 and the image side are The surface 232 is aspherical, and both the object side surface 231 and the image side surface 232 have more than one inflection point.
該紅外線濾除濾光元件270為玻璃材質，其設置於該第三透鏡230及成像面280間且不影響該光學成像鏡頭的焦距。 The infrared filter element 270 is made of glass and disposed between the third lens 230 and the imaging surface 280 without affecting the focal length of the optical imaging lens.
再配合參照下列表3、以及表4。 Refer to Table 3 and Table 4 below.
第二實施例中，非球面的曲線方程式表示如第一實施例的形式。此外，下表參數的定義皆與第一實施例相同，在此不加以贅述。 In the second embodiment, the aspherical curve equation represents the form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and are not described herein.
配合表3以及表4可推算出下列數據：
<第三實施例> <Third embodiment>
請參照圖3A及圖3B，其中圖3A繪示依照本發明第三實施例之光學成像鏡頭的示意圖，圖3B由左至右依序為第三實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。由圖3A可知，光學成像鏡頭係包含有一光圈300和一光學組，該光學組由物側至像側依序包含第一透鏡310、第二透鏡320、第三透鏡330、紅外線濾除濾光元件370、以及成像面380，其中該光學成像鏡頭中具屈折力的透鏡為三片。該光圈300設置在該第一透鏡310的像側表面312與被攝物之間。 Please refer to FIG. 3A and FIG. 3B , wherein FIG. 3A is a schematic diagram of an optical imaging lens according to a third embodiment of the present invention, and FIG. 3B is a spherical aberration and astigmatism of the optical imaging lens of the third embodiment from left to right. And the distortion curve. As can be seen from FIG. 3A, the optical imaging lens includes an aperture 300 and an optical group. The optical group includes a first lens 310, a second lens 320, a third lens 330, and an infrared filter filter sequentially from the object side to the image side. Element 370, and imaging surface 380, wherein the lens of the optical imaging lens has a refractive power of three. The aperture 300 is disposed between the image side surface 312 of the first lens 310 and the subject.
該第一透鏡310具有正屈折力，且為塑膠材質，其物側表面311 近光軸390處為凸面，其像側表面312近光軸390處為凹面，且該物側表面311及像側表面312皆為非球面。 The first lens 310 has a positive refractive power and is made of a plastic material, and its object side surface 311 The near optical axis 390 is a convex surface, and the image side surface 312 is concave at the near optical axis 390, and the object side surface 311 and the image side surface 312 are all aspherical.
該第二透鏡320具有正屈折力，且為塑膠材質，其物側表面321 近光軸390處為凹面，其像側表面322近光軸390處為凸面，且該物側表面321及像側表面322皆為非球面。 The second lens 320 has a positive refractive power and is made of a plastic material, and the object side surface 321 The near optical axis 390 is a concave surface, and the image side surface 322 is convex at the near optical axis 390, and the object side surface 321 and the image side surface 322 are all aspherical.
該第三透鏡330具有負屈折力，且為塑膠材質，其物側表面331 近光軸390處為凸面，其像側表面332近光軸390處為凹面，且該物側表面331及像側表面332皆為非球面，且該物側表面331及該像側表面332皆具有一個以上反曲點。 The third lens 330 has a negative refractive power and is made of a plastic material, and its object side surface 331 The near-optical axis 390 is a convex surface, and the image-side surface 332 is concave at the near-optical axis 390, and the object-side surface 331 and the image-side surface 332 are both aspherical, and the object-side surface 331 and the image-side surface 332 are both Has more than one inflection point.
該紅外線濾除濾光元件370為玻璃材質，其設置於該第三透鏡330及成像面380間且不影響該光學成像鏡頭的焦距。 The infrared filter element 370 is made of glass and disposed between the third lens 330 and the imaging surface 380 without affecting the focal length of the optical imaging lens.
再配合參照下列表5、以及表6。 Refer to Table 5 and Table 6 below for reference.
第三實施例中，非球面的曲線方程式表示如第一實施例的形式。此外，下表參數的定義皆與第一實施例相同，在此不加以贅述。 In the third embodiment, the aspherical curve equation represents the form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and are not described herein.
配合表5以及表6可推算出下列數據：
<第四實施例> <Fourth embodiment>
請參照圖4A及圖4B，其中圖4A繪示依照本發明第四實施例之光學成像鏡頭的示意圖，圖4B由左至右依序為第四實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。由圖4A可知，光學成像鏡頭係包含有一光圈 400和一光學組，該光學組由物側至像側依序包含第一透鏡410、第二透鏡420、第三透鏡430、紅外線濾除濾光元件470、以及成像面480，其中該光學成像鏡頭中具屈折力的透鏡為三片。該光圈400設置在該第一透鏡410的像側表面412與被攝物之間。 4A and 4B, wherein FIG. 4A is a schematic diagram of an optical imaging lens according to a fourth embodiment of the present invention, and FIG. 4B is a spherical aberration and astigmatism of the optical imaging lens of the fourth embodiment from left to right. And the distortion curve. As can be seen from FIG. 4A, the optical imaging lens includes an aperture 400 and an optical group, the optical group sequentially includes a first lens 410, a second lens 420, a third lens 430, an infrared filter element 470, and an imaging surface 480 from the object side to the image side, wherein the optical imaging The lens with refractive power in the lens is three pieces. The aperture 400 is disposed between the image side surface 412 of the first lens 410 and the object.
該第一透鏡410具有正屈折力，且為塑膠材質，其物側表面411 近光軸490處為凸面，其像側表面412近光軸490處為凸面，且該物側表面411及像側表面412皆為非球面。 The first lens 410 has a positive refractive power and is made of a plastic material, and its object side surface 411 The near optical axis 490 is a convex surface, and the image side surface 412 is convex at the near optical axis 490, and the object side surface 411 and the image side surface 412 are all aspherical.
該第二透鏡420具有正屈折力，且為塑膠材質，其物側表面421 近光軸490處為凹面，其像側表面422近光軸490處為凸面，且該物側表面421及像側表面422皆為非球面。 The second lens 420 has a positive refractive power and is made of a plastic material, and the object side surface 421 The near optical axis 490 is a concave surface, and the image side surface 422 is convex at the near optical axis 490, and the object side surface 421 and the image side surface 422 are all aspherical.
該第三透鏡430具有負屈折力，且為塑膠材質，其物側表面431 近光軸490處為凸面，其像側表面432近光軸490處為凹面，且該物側表面431及像側表面432皆為非球面，且該物側表面431及該像側表面432皆具有一個以上反曲點。 The third lens 430 has a negative refractive power and is made of a plastic material, and its object side surface 431 The near-optical axis 490 is a convex surface, and the image-side surface 432 is concave at the near-optical axis 490, and the object-side surface 431 and the image-side surface 432 are both aspherical, and the object-side surface 431 and the image-side surface 432 are both Has more than one inflection point.
該紅外線濾除濾光元件470為玻璃材質，其設置於該第三透鏡 430及成像面480間且不影響該光學成像鏡頭的焦距。 The infrared filter element 470 is made of glass and is disposed on the third lens. 430 and the imaging surface 480 do not affect the focal length of the optical imaging lens.
再配合參照下列表7、以及表8。 Refer to Table 7 and Table 8 below for reference.
第四實施例中，非球面的曲線方程式表示如第一實施例的形式。此外，下表參數的定義皆與第一實施例相同，在此不加以贅述。 In the fourth embodiment, the aspherical curve equation represents the form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and are not described herein.
配合表7以及表8可推算出下列數據：
<第五實施例> <Fifth Embodiment>
請參照圖5A及圖5B，其中圖5A繪示依照本發明第五實施例之光學成像鏡頭的示意圖，圖5B由左至右依序為第五實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。由圖5A可知，光學成像鏡頭係包含有一光圈500和一光學組，該光學組由物側至像側依序包含第一透鏡510、第二透鏡520、第三透鏡530、紅外線濾除濾光元件570、以及成像面580，其中該光學成像鏡頭中具屈折力的透鏡為三片。該光圈500設置在該第一透鏡510的像側表面512與被攝物之間。 5A and 5B, wherein FIG. 5A is a schematic diagram of an optical imaging lens according to a fifth embodiment of the present invention, and FIG. 5B is a spherical aberration and astigmatism of the optical imaging lens of the fifth embodiment from left to right. And the distortion curve. As can be seen from FIG. 5A, the optical imaging lens includes an aperture 500 and an optical group. The optical group sequentially includes a first lens 510, a second lens 520, a third lens 530, and an infrared filter filter from the object side to the image side. Element 570, and imaging surface 580, wherein the lens of the optical imaging lens has a refractive power of three. The aperture 500 is disposed between the image side surface 512 of the first lens 510 and the subject.
該第一透鏡510具有正屈折力，且為塑膠材質，其物側表面511近光軸590處為凸面，其像側表面512近光軸590處為凹面，且該物側表面511及像側表面512皆為非球面。 The first lens 510 has a positive refractive power and is made of a plastic material. The object side surface 511 is convex at the near optical axis 590, and the image side surface 512 is concave at the near optical axis 590, and the object side surface 511 and the image side are Surface 512 is aspherical.
該第二透鏡520具有正屈折力，且為塑膠材質，其物側表面521近光軸590處為凹面，其像側表面522近光軸590處為凸面，且該物側表面521及像側表面522皆為非球面。 The second lens 520 has a positive refractive power and is made of a plastic material. The object side surface 521 is concave at the near optical axis 590, and the image side surface 522 is convex at the near optical axis 590, and the object side surface 521 and the image side are Surface 522 is aspherical.
該第三透鏡530具有負屈折力，且為塑膠材質，其物側表面531近光軸590處為凸面，其像側表面532近光軸590處為凹面，且該物側表面531及像側表面532皆為非球面，且該物側表面531及該像側表面532皆具有一個以上反曲點。 The third lens 530 has a negative refractive power and is made of a plastic material. The object side surface 531 is convex at the near optical axis 590, and the image side surface 532 is concave at the near optical axis 590, and the object side surface 531 and the image side are The surface 532 is aspherical, and both the object side surface 531 and the image side surface 532 have more than one inflection point.
該紅外線濾除濾光元件570為玻璃材質，其設置於該第三透鏡530及成像面580間且不影響該光學成像鏡頭的焦距。 The infrared filter element 570 is made of glass and disposed between the third lens 530 and the imaging surface 580 without affecting the focal length of the optical imaging lens.
再配合參照下列表9、以及表10。 Refer to Table 9 and Table 10 below.
第五實施例中，非球面的曲線方程式表示如第一實施例的形式。此外，下表參數的定義皆與第一實施例相同，在此不加以贅述。 In the fifth embodiment, the aspherical curve equation represents the form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and are not described herein.
配合表9以及表10可推算出下列數據：
<第六實施例> <Sixth embodiment>
請參照圖6A及圖6B，其中圖6A繪示依照本發明第六實施例之 光學成像鏡頭的示意圖，圖6B由左至右依序為第六實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。由圖6A可知，光學成像鏡頭係包含有一光圈600和一光學組，該光學組由物側至像側依序包含第一透鏡610、第二透鏡620、第三透鏡630、紅外線濾除濾光元件670、以及成像面680，其中該光學成像鏡頭中具屈折力的透鏡為三片。該光圈600設置在該第一透鏡610的像側表面612與被攝物之間。 Please refer to FIG. 6A and FIG. 6B , wherein FIG. 6A illustrates a sixth embodiment of the present invention. Schematic diagram of the optical imaging lens, FIG. 6B is a spherical aberration, astigmatism, and distortion curve of the optical imaging lens of the sixth embodiment from left to right. As can be seen from FIG. 6A, the optical imaging lens includes an aperture 600 and an optical group. The optical group sequentially includes a first lens 610, a second lens 620, a third lens 630, and an infrared filter filter from the object side to the image side. Element 670, and imaging surface 680, wherein the lens of the optical imaging lens has a refractive power of three. The aperture 600 is disposed between the image side surface 612 of the first lens 610 and the object.
該第一透鏡610具有正屈折力，且為塑膠材質，其物側表面611 近光軸690處為凸面，其像側表面612近光軸690處為凹面，且該物側表面611及像側表面612皆為非球面。 The first lens 610 has a positive refractive power and is made of a plastic material, and its object side surface 611 The near optical axis 690 is convex, and the image side surface 612 is concave at the near optical axis 690, and the object side surface 611 and the image side surface 612 are all aspherical.
該第二透鏡620具有正屈折力，且為塑膠材質，其物側表面621 近光軸690處為凹面，其像側表面622近光軸690處為凸面，且該物側表面621及像側表面622皆為非球面。 The second lens 620 has a positive refractive power and is made of a plastic material, and its object side surface 621 The near optical axis 690 is a concave surface, and the image side surface 622 is convex at the near optical axis 690, and the object side surface 621 and the image side surface 622 are all aspherical.
該第三透鏡630具有負屈折力，且為塑膠材質，其物側表面631 近光軸690處為凸面，其像側表面632近光軸690處為凹面，且該物側表面631及像側表面632皆為非球面，且該物側表面631及該像側表面632皆具有一個 以上反曲點。 The third lens 630 has a negative refractive power and is made of a plastic material, and its object side surface 631 The near-optical axis 690 is convex, and the image-side surface 632 is concave at the near-optical axis 690, and the object-side surface 631 and the image-side surface 632 are both aspherical, and the object-side surface 631 and the image-side surface 632 are both Have a Above recurve points.
該紅外線濾除濾光元件670為玻璃材質，其設置於該第三透鏡630及成像面680間且不影響該光學成像鏡頭的焦距。 The infrared filter element 670 is made of glass and disposed between the third lens 630 and the imaging surface 680 without affecting the focal length of the optical imaging lens.
再配合參照下列表11、以及表12。 Referring again to Table 11 and Table 12 below.
第六實施例中，非球面的曲線方程式表示如第一實施例的形式。此外，下表參數的定義皆與第一實施例相同，在此不加以贅述。 In the sixth embodiment, the aspherical curve equation represents the form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and are not described herein.
配合表11以及表12可推算出下列數據：
<第七實施例> <Seventh embodiment>
請參照圖7A及圖7B，其中圖7A繪示依照本發明第七實施例之光學成像鏡頭的示意圖，圖7B由左至右依序為第七實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。由圖7A可知，光學成像鏡頭係包含有一光圈700和一光學組，該光學組由物側至像側依序包含第一透鏡710、第二透鏡720、第三透鏡730、紅外線濾除濾光元件770、以及成像面780，其中該光學成像鏡頭中具屈折力的透鏡為三片。該光圈700設置在該第一透鏡710的像側表面712與被攝物之間。 Please refer to FIG. 7A and FIG. 7B , wherein FIG. 7A is a schematic diagram of an optical imaging lens according to a seventh embodiment of the present invention, and FIG. 7B is a spherical aberration and astigmatism of the optical imaging lens of the seventh embodiment from left to right. And the distortion curve. As can be seen from FIG. 7A, the optical imaging lens includes an aperture 700 and an optical group. The optical group sequentially includes a first lens 710, a second lens 720, a third lens 730, and an infrared filter filter from the object side to the image side. Element 770, and imaging surface 780, wherein the lens of the optical imaging lens has a refractive power of three. The aperture 700 is disposed between the image side surface 712 of the first lens 710 and the subject.
該第一透鏡710具有正屈折力，且為塑膠材質，其物側表面711近光軸790處為凸面，其像側表面712近光軸790處為凹面，且該物側表面711及像側表面712皆為非球面。 The first lens 710 has a positive refractive power and is made of a plastic material. The object side surface 711 is convex at the near optical axis 790, and the image side surface 712 is concave at the near optical axis 790, and the object side surface 711 and the image side are Surface 712 is aspherical.
該第二透鏡720具有正屈折力，且為塑膠材質，其物側表面721 近光軸790處為凹面，其像側表面722近光軸790處為凸面，且該物側表面721及像側表面722皆為非球面。 The second lens 720 has a positive refractive power and is made of a plastic material, and its object side surface 721 The near optical axis 790 is a concave surface, and the image side surface 722 is convex at the near optical axis 790, and the object side surface 721 and the image side surface 722 are all aspherical.
該第三透鏡730具有負屈折力，且為塑膠材質，其物側表面731 近光軸790處為凸面，其像側表面732近光軸790處為凹面，且該物側表面731及像側表面732皆為非球面，且該物側表面731及該像側表面732皆具有一個以上反曲點。 The third lens 730 has a negative refractive power and is made of a plastic material, and its object side surface 731 The near optical axis 790 is a convex surface, and the image side surface 732 is concave at the near optical axis 790, and the object side surface 731 and the image side surface 732 are both aspherical surfaces, and the object side surface 731 and the image side surface 732 are both Has more than one inflection point.
該紅外線濾除濾光元件770為玻璃材質，其設置於該第三透鏡 730及成像面780間且不影響該光學成像鏡頭的焦距。 The infrared filter element 770 is made of glass and is disposed on the third lens. 730 and imaging surface 780 do not affect the focal length of the optical imaging lens.
再配合參照下列表13、以及表14。 Refer to Table 13 and Table 14 below.
第七實施例中，非球面的曲線方程式表示如第一實施例的形 式。此外，下表參數的定義皆與第一實施例相同，在此不加以贅述。 In the seventh embodiment, the aspherical curve equation represents the shape of the first embodiment formula. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and are not described herein.
配合表13以及表14可推算出下列數據：
<第八實施例> <Eighth Embodiment>
請參照圖8A及圖8B，其中圖8A繪示依照本發明第八實施例之光學成像鏡頭的示意圖，圖8B由左至右依序為第八實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。由圖8A可知，光學成像鏡頭係包含有一光圈800和一光學組，該光學組由物側至像側依序包含第一透鏡810、第二透鏡 820、第三透鏡830、紅外線濾除濾光元件870、以及成像面880，其中該光學成像鏡頭中具屈折力的透鏡為三片。該光圈800設置在該第一透鏡810的像側表面812與被攝物之間。 8A and 8B, wherein FIG. 8A is a schematic diagram of an optical imaging lens according to an eighth embodiment of the present invention, and FIG. 8B is a spherical aberration and astigmatism of the optical imaging lens of the eighth embodiment from left to right. And the distortion curve. As can be seen from FIG. 8A, the optical imaging lens includes an aperture 800 and an optical group. The optical group sequentially includes a first lens 810 and a second lens from the object side to the image side. 820, a third lens 830, an infrared filter element 870, and an imaging surface 880, wherein the lens of the optical imaging lens having a refractive power is three pieces. The aperture 800 is disposed between the image side surface 812 of the first lens 810 and the subject.
該第一透鏡810具有正屈折力，且為塑膠材質，其物側表面811 近光軸890處為凸面，其像側表面812近光軸890處為凹面，且該物側表面811及像側表面812皆為非球面。 The first lens 810 has a positive refractive power and is made of a plastic material, and its object side surface 811 The near optical axis 890 is a convex surface, and the image side surface 812 is concave at the near optical axis 890, and the object side surface 811 and the image side surface 812 are all aspherical.
該第二透鏡820具有正屈折力，且為塑膠材質，其物側表面821 近光軸890處為凹面，其像側表面822近光軸890處為凸面，且該物側表面821及像側表面822皆為非球面。 The second lens 820 has a positive refractive power and is made of a plastic material, and the object side surface 821 The near optical axis 890 is a concave surface, and the image side surface 822 is convex at the near optical axis 890, and the object side surface 821 and the image side surface 822 are both aspherical.
該第三透鏡830具有負屈折力，且為塑膠材質，其物側表面831 近光軸890處為凸面，其像側表面832近光軸890處為凹面，且該物側表面831及像側表面832皆為非球面，且該物側表面831及該像側表面832皆具有一個以上反曲點。 The third lens 830 has a negative refractive power and is made of a plastic material, and its object side surface 831 The near-optical axis 890 is a convex surface, and the image-side surface 832 is concave at the near-optical axis 890, and the object-side surface 831 and the image-side surface 832 are aspherical surfaces, and the object-side surface 831 and the image-side surface 832 are both Has more than one inflection point.
該紅外線濾除濾光元件870為玻璃材質，其設置於該第三透鏡 830及成像面880間且不影響該光學成像鏡頭的焦距。 The infrared filter element 870 is made of glass and is disposed on the third lens. 830 and imaging surface 880 do not affect the focal length of the optical imaging lens.
再配合參照下列表15、以及表16。 Refer to Table 15 and Table 16 below for reference.
第八實施例中，非球面的曲線方程式表示如第一實施例的形式。此外，下表參數的定義皆與第一實施例相同，在此不加以贅述。 In the eighth embodiment, the aspherical curve equation represents the form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and are not described herein.
配合表15以及表16可推算出下列數據：
<第九實施例> <Ninth embodiment>
請參照圖9A及圖9B，其中圖9A繪示依照本發明第九實施例之 光學成像鏡頭的示意圖，圖9B由左至右依序為第九實施例的光學成像鏡頭的球差、像散及歪曲曲線圖。由圖9A可知，光學成像鏡頭係包含有一光圈900和一光學組，該光學組由物側至像側依序包含第一透鏡910、第二透鏡920、第三透鏡930、紅外線濾除濾光元件970、以及成像面980，其中該光學成像鏡頭中具屈折力的透鏡為三片。該光圈900設置在該第一透鏡910的像側表面912與被攝物之間。 Please refer to FIG. 9A and FIG. 9B , wherein FIG. 9A illustrates a ninth embodiment according to the present invention. Schematic diagram of the optical imaging lens, FIG. 9B is a spherical aberration, astigmatism, and distortion curve of the optical imaging lens of the ninth embodiment, from left to right. As shown in FIG. 9A, the optical imaging lens includes an aperture 900 and an optical group. The optical group sequentially includes a first lens 910, a second lens 920, a third lens 930, and an infrared filter filter from the object side to the image side. Element 970, and imaging surface 980, wherein the lens of the optical imaging lens has a refractive power of three. The aperture 900 is disposed between the image side surface 912 of the first lens 910 and the object.
該第一透鏡910具有正屈折力，且為塑膠材質，其物側表面911 近光軸990處為凸面，其像側表面912近光軸990處為凹面，且該物側表面911及像側表面912皆為非球面。 The first lens 910 has a positive refractive power and is made of a plastic material, and its object side surface 911 The near optical axis 990 is a convex surface, and the image side surface 912 is concave at the near optical axis 990, and the object side surface 911 and the image side surface 912 are all aspherical.
該第二透鏡920具有正屈折力，且為塑膠材質，其物側表面921 近光軸990處為凹面，其像側表面922近光軸990處為凸面，且該物側表面921及像側表面922皆為非球面。 The second lens 920 has a positive refractive power and is made of a plastic material, and its object side surface 921 The near optical axis 990 is a concave surface, and the image side surface 922 is convex at the near optical axis 990, and the object side surface 921 and the image side surface 922 are all aspherical.
該第三透鏡930具有負屈折力，且為塑膠材質，其物側表面931 近光軸990處為凸面，其像側表面932近光軸990處為凹面，且該物側表面931及像側表面932皆為非球面，且該物側表面831及該像側表面832皆具有一個以上反曲點。 The third lens 930 has a negative refractive power and is made of a plastic material, and its object side surface 931 The near optical axis 990 is a convex surface, and the image side surface 932 is concave at the near optical axis 990, and the object side surface 931 and the image side surface 932 are both aspherical surfaces, and the object side surface 831 and the image side surface 832 are both Has more than one inflection point.
該紅外線濾除濾光元件970為玻璃材質，其設置於該第三透鏡 930及成像面980間且不影響該光學成像鏡頭的焦距。 The infrared filter element 970 is made of glass and is disposed on the third lens. 930 and imaging surface 980 do not affect the focal length of the optical imaging lens.
再配合參照下列表17、以及表18。 Referring again to Table 17 and Table 18 below.
第九實施例中，非球面的曲線方程式表示如第一實施例的形式。此外，下表參數的定義皆與第一實施例相同，在此不加以贅述。 In the ninth embodiment, the aspherical curve equation represents the form as in the first embodiment. In addition, the definitions of the parameters in the following table are the same as those in the first embodiment, and are not described herein.
配合表17以及表18可推算出下列數據：
本發明提供的光學成像鏡頭，透鏡的材質可為塑膠或玻璃，當 透鏡材質為塑膠，可以有效降低生產成本，另當透鏡的材質為玻璃，則可以增加光學成像鏡頭屈折力配置的自由度。此外，光學成像鏡頭中透鏡的物側表面及像側表面可為非球面，非球面可以容易製作成球面以外的形狀，獲得較多的控制變數，用以消減像差，進而縮減透鏡使用的數目，因此可以有效降低本發明光學成像鏡頭的總長度。 The optical imaging lens provided by the invention can be made of plastic or glass. The lens material is plastic, which can effectively reduce the production cost. When the lens is made of glass, the degree of freedom of the refractive index configuration of the optical imaging lens can be increased. In addition, the object side surface and the image side surface of the lens in the optical imaging lens may be aspherical, and the aspheric surface can be easily formed into a shape other than the spherical surface, and more control variables are obtained to reduce the aberration and thereby reduce the number of lenses used. Therefore, the total length of the optical imaging lens of the present invention can be effectively reduced.
本發明提供的光學成像鏡頭中，就以具有屈折力的透鏡而言， 若透鏡表面係為凸面且未界定該凸面位置時，則表示該透鏡表面於近光軸處為凸面；若透鏡表面係為凹面且未界定該凹面位置時，則表示該透鏡表面於近光軸處為凹面。 In the optical imaging lens provided by the present invention, in the case of a lens having a refractive power, If the surface of the lens is convex and the position of the convex surface is not defined, it indicates that the surface of the lens is convex at the near optical axis; if the surface of the lens is concave and the position of the concave surface is not defined, it indicates that the surface of the lens is near the optical axis The area is concave.
本發明提供的光學成像鏡頭更可視需求應用於移動對焦的光學 系統中，並兼具優良像差修正與良好成像品質的特色，可多方面應用於3D(三維)影像擷取、數位相機、行動裝置、數位平板或車用攝影等電子影像系統中。 The optical imaging lens provided by the invention is more suitable for the optical application of moving focus The system combines excellent aberration correction and good image quality, and can be applied to electronic image systems such as 3D (3D) image capture, digital camera, mobile device, digital tablet or car photography.
綜上所述，上述各實施例及圖式僅為本發明的較佳實施例而已，當不能以之限定本發明實施之範圍，即大凡依本發明申請專利範圍所作的均等變化與修飾，皆應屬本發明專利涵蓋的範圍內。 In the above, the above embodiments and drawings are only the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, that is, the equivalent changes and modifications made by the scope of the present invention are all It should be within the scope of the patent of the present invention.
100‧‧‧光圈 100‧‧‧ aperture
110‧‧‧第一透鏡 110‧‧‧first lens
111‧‧‧物側表面 111‧‧‧Side side surface
112‧‧‧像側表面 112‧‧‧ image side surface
120‧‧‧第二透鏡 120‧‧‧second lens
121‧‧‧物側表面 121‧‧‧Side side surface
122‧‧‧像側表面 122‧‧‧ image side surface
130‧‧‧第三透鏡 130‧‧‧ third lens
131‧‧‧物側表面 131‧‧‧ object side surface
132‧‧‧像側表面 132‧‧‧Image side surface
170‧‧‧紅外線濾除濾光元件 170‧‧‧Infrared filter components
180‧‧‧成像面 180‧‧‧ imaging surface
190‧‧‧光軸 190‧‧‧ optical axis
Claims (17)
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| TW103140927A TW201619660A (en) | 2014-11-26 | 2014-11-26 | Optical imaging lens |
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| TW103140927A TW201619660A (en) | 2014-11-26 | 2014-11-26 | Optical imaging lens |
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| TW201619660A true TW201619660A (en) | 2016-06-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI637193B (en) * | 2016-07-26 | 2018-10-01 | 先進光電科技股份有限公司 | Optical image capturing system |
| CN111338059A (en) * | 2019-10-23 | 2020-06-26 | 神盾股份有限公司 | Optical imaging lens |
| TWI747747B (en) * | 2021-02-24 | 2021-11-21 | 新鉅科技股份有限公司 | Optical lens system and photographing module |
-
2014
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI637193B (en) * | 2016-07-26 | 2018-10-01 | 先進光電科技股份有限公司 | Optical image capturing system |
| US10114194B2 (en) | 2016-07-26 | 2018-10-30 | Ability Opto-Electronics Technology Co., Ltd. | Optical image capturing system |
| CN111338059A (en) * | 2019-10-23 | 2020-06-26 | 神盾股份有限公司 | Optical imaging lens |
| CN111338059B (en) * | 2019-10-23 | 2021-11-30 | 神盾股份有限公司 | Optical imaging lens |
| TWI747747B (en) * | 2021-02-24 | 2021-11-21 | 新鉅科技股份有限公司 | Optical lens system and photographing module |
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