TWI804892B - Optical imaging lens, imaging device and electronic device - Google Patents
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本發明係有關於一種光學攝像透鏡組及成像裝置,特別是有關適用於車用攝影電子裝置或監控攝影系統之光學攝像透鏡組、成像裝置及電子裝置。The present invention relates to an optical imaging lens group and an imaging device, in particular to an optical imaging lens group, an imaging device and an electronic device suitable for a vehicle photographing electronic device or a surveillance camera system.
隨著半導體製程技術不斷地精進,使得影像感測元件的畫素可以達到更微小的尺寸,性能顯著地提升,因此,具備高成像品質的光學鏡頭已成為電子攝像裝置中不可或缺的一環。As the semiconductor process technology continues to improve, the pixel size of the image sensing element can reach a smaller size, and the performance is significantly improved. Therefore, the optical lens with high imaging quality has become an indispensable part of the electronic camera device.
而隨著電子攝像裝置的多元化發展,其應用範圍愈加地廣泛,例如先進駕駛輔助系統(ADAS)、行車記錄器、家用監控攝影設備、智慧型手機及人機互動裝置等,光學鏡頭的設計要求也更加地多樣化。就車用攝影裝置而言,為了清楚地辨識車輛四周的障礙物或二側的來車,需要提高光學鏡頭的解析度及明亮度,同時要求對環境溫度具有高度適應性。此外,為了良好地修正各種像差,特別是在量測距離或者物體辨識的用途,若在拍攝的影像中存在較大畸變像差時,計算距離或影像辨識時將容易產生誤差。With the diversified development of electronic camera devices, their application scope is becoming more and more extensive, such as advanced driver assistance systems (ADAS), driving recorders, home surveillance camera equipment, smart phones and human-computer interaction devices, etc., the design of optical lenses Requirements are also more diverse. As far as the vehicle camera is concerned, in order to clearly identify obstacles around the vehicle or approaching vehicles on both sides, it is necessary to improve the resolution and brightness of the optical lens, and at the same time require a high degree of adaptability to the ambient temperature. In addition, in order to properly correct various aberrations, especially for distance measurement or object recognition purposes, if there is a large distortion aberration in the captured image, errors will easily occur when calculating distance or image recognition.
是以,如何提供一種廣視角且具有良好成像品質的小型光學鏡頭已成為此技術領域之人士亟欲解決之問題。Therefore, how to provide a small optical lens with a wide viewing angle and good imaging quality has become a problem that people in this technical field want to solve urgently.
是以,為解決上述問題,本發明提供一種光學攝像透鏡組,由物側至像側依序包含第一透鏡、第二透鏡、第三透鏡、光圈、第四透鏡、第五透鏡、第六透鏡及第七透鏡。其中,第一透鏡具有負屈折力,其物側面為凸面、像側面為凹面;第二透鏡具有負屈折力,其物側面為凸面、像側面為凹面;第三透鏡具有負屈折力,其物側面為凹面、像側面為凸面;第四透鏡具有正屈折力,其物側面為凸面、像側面為凸面;第五透鏡具有正屈折力,其物側面為凸面、像側面為凸面;第六透鏡具有負屈折力,其物側面為凹面、像側面為凹面;第七透鏡具有正屈折力,其物側面為凸面、像側面為凸面;其中,所述光學攝像透鏡組之透鏡總數為七片;所述第三透鏡之焦距為f3,整體光學攝像透鏡組之有效焦距為EFL,係滿足以下關係式:-10<f3/EFL< -2。Therefore, in order to solve the above problems, the present invention provides an optical imaging lens group, which includes a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, and a sixth lens in sequence from the object side to the image side. lens and the seventh lens. Among them, the first lens has negative refractive power, its object side is convex, and its image side is concave; the second lens has negative refractive power, its object side is convex, and its image side is concave; the third lens has negative refractive power, its object The side is concave, and the image side is convex; the fourth lens has positive refraction power, its object side is convex, and the image side is convex; the fifth lens has positive refraction, its object side is convex, and the image side is convex; the sixth lens It has negative refractive power, its object side is concave, and its image side is concave; the seventh lens has positive refractive power, its object side is convex, and its image side is convex; wherein, the total number of lenses in the optical imaging lens group is seven; The focal length of the third lens is f3, and the effective focal length of the overall optical imaging lens group is EFL, which satisfies the following relationship: -10<f3/EFL<-2.
根據本發明之一實施例,所述第二透鏡在光軸上之厚度為CT2,第三透鏡在光軸上之厚度為CT3,係滿足以下關係式:0.6<CT3/CT2<2.6。According to an embodiment of the present invention, 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, which satisfy the following relationship: 0.6<CT3/CT2<2.6.
較佳地,根據本發明之一實施例,所述第三透鏡與第四透鏡的組合焦距為f34,整體光學攝像透鏡組之有效焦距為EFL,係滿足以下關係式:3<f34/EFL< 7。Preferably, according to an embodiment of the present invention, the combined focal length of the third lens and the fourth lens is f34, and the effective focal length of the overall optical imaging lens group is EFL, which satisfies the following relationship: 3<f34/EFL< 7.
本發明又提供一種光學攝像透鏡組,由物側至像側依序包含第一透鏡、第二透鏡、第三透鏡、光圈、第四透鏡、第五透鏡、第六透鏡及第七透鏡。其中,第一透鏡具有負屈折力,其物側面為凸面、像側面為凹面;第二透鏡具有負屈折力,其物側面為凸面、像側面為凹面;第三透鏡具有負屈折力,其物側面為凹面、像側面為凸面;第四透鏡具有正屈折力,其物側面為凸面、像側面為凸面;第五透鏡具有正屈折力,其物側面為凸面、像側面為凸面;第六透鏡具有負屈折力,其物側面為凹面、像側面為凹面;第七透鏡具有正屈折力,其物側面為凸面、像側面為凸面;其中,所述光學攝像透鏡組之透鏡總數為七片;所述第三透鏡與第四透鏡的組合焦距為f34,整體光學攝像透鏡組之有效焦距為EFL,係滿足以下關係式:3<f34/EFL< 7。The present invention further provides an optical imaging lens group, which sequentially includes a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens and a seventh lens from the object side to the image side. Among them, the first lens has negative refractive power, its object side is convex, and its image side is concave; the second lens has negative refractive power, its object side is convex, and its image side is concave; the third lens has negative refractive power, its object The side is concave, and the image side is convex; the fourth lens has positive refraction power, its object side is convex, and the image side is convex; the fifth lens has positive refraction, its object side is convex, and the image side is convex; the sixth lens It has negative refractive power, its object side is concave, and its image side is concave; the seventh lens has positive refractive power, its object side is convex, and its image side is convex; wherein, the total number of lenses in the optical imaging lens group is seven; The combined focal length of the third lens and the fourth lens is f34, and the effective focal length of the overall optical imaging lens group is EFL, which satisfies the following relationship: 3<f34/EFL<7.
較佳地,根據本發明之一實施例,所述第二透鏡在光軸上之厚度為CT2,第三透鏡在光軸上之厚度為CT3,係滿足以下關係式:0.6<CT3/CT2<2.6。Preferably, according to an embodiment of the present invention, 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, which satisfy the following relationship: 0.6<CT3/CT2< 2.6.
根據本發明之一實施例,所述第一透鏡的焦距為f1,第二透鏡之焦距為f2,係滿足以下關係式:1<f2/f1<4。According to an embodiment of the present invention, the focal length of the first lens is f1, and the focal length of the second lens is f2, which satisfy the following relationship: 1<f2/f1<4.
根據本發明之一實施例,所述第五透鏡與第六透鏡之組合焦距為f56,其與整體光學攝像透鏡組之有效焦距EFL之間,係滿足以下關係式:2<f56/EFL< 6.5。According to an embodiment of the present invention, the combined focal length of the fifth lens and the sixth lens is f56, which satisfies the following relationship with the effective focal length EFL of the overall optical imaging lens group: 2<f56/EFL<6.5 .
根據本發明之一實施例,所述第六透鏡像側面之曲率半徑為R12,第七透鏡物側面之曲率半徑為R13,係滿足以下關係式:0.4<R12/R13<1.4。According to an embodiment of the present invention, the radius of curvature of the image side of the sixth lens is R12, and the radius of curvature of the object side of the seventh lens is R13, which satisfy the following relationship: 0.4<R12/R13<1.4.
根據本發明之一實施例,所述第五透鏡之焦距為f5,其與整體光學攝像透鏡組之有效焦距EFL之間,係滿足以下關係式:0.9<f5/EFL<1.8。According to an embodiment of the present invention, the focal length of the fifth lens is f5, which satisfies the following relationship with the effective focal length EFL of the overall optical imaging lens group: 0.9<f5/EFL<1.8.
根據本發明之一實施例,所述第七透鏡之焦距為f7,其與整體光學攝像透鏡組之有效焦距EFL之間,係滿足以下關係式:1.5<f7/EFL<2.3。According to an embodiment of the present invention, the focal length of the seventh lens is f7, and the effective focal length EFL of the overall optical imaging lens group satisfies the following relationship: 1.5<f7/EFL<2.3.
根據本發明之一實施例,所述第四透鏡物側面之曲率半徑為R7、像側面之曲率半徑為R8,係滿足以下關係式:-0.9< <0.6。 According to an embodiment of the present invention, the radius of curvature of the object side of the fourth lens is R7, and the radius of curvature of the image side is R8, which satisfy the following relationship: -0.9< <0.6.
根據本發明之一實施例,所述第一透鏡、第二透鏡、第三透鏡及第四透鏡之組合焦距為負值。According to an embodiment of the present invention, the combined focal length of the first lens, the second lens, the third lens and the fourth lens is a negative value.
根據本發明之一實施例,所述第一透鏡、第二透鏡及第三透鏡之組合焦距為f123,其與整體光學攝像透鏡組之有效焦距EFL之間,係滿足以下關係式:-1.3<f123/EFL< -0.6。According to an embodiment of the present invention, the combined focal length of the first lens, the second lens and the third lens is f123, and the effective focal length EFL of the overall optical imaging lens group satisfies the following relationship: -1.3< f123/EFL<-0.6.
根據本發明之一實施例,所述第二透鏡物側面之曲率半徑為R3、像側面之曲率半徑為R4,係滿足以下關係式:1.4<R3/R4<2.3。According to an embodiment of the present invention, the radius of curvature of the object side of the second lens is R3, and the radius of curvature of the image side is R4, which satisfy the following relationship: 1.4<R3/R4<2.3.
根據本發明之一實施例,所述第四透鏡之焦距為f4,其與整體光學攝像透鏡組的有效焦距EFL之間,係滿足以下關係式:1.6<f4/EFL<3.3。According to an embodiment of the present invention, the focal length of the fourth lens is f4, which satisfies the following relationship with the effective focal length EFL of the overall optical imaging lens group: 1.6<f4/EFL<3.3.
根據本發明之一實施例,所述第二透鏡像側面至第三透鏡物側面在光軸上之距離為AT23,所述第一透鏡物側面至光學攝像透鏡組成像面在光軸上之距離為TTL,係滿足以下關係式:5<TTL/AT23<14。According to one embodiment of the present invention, the distance on the optical axis from the image side of the second lens to the object side of the third lens is AT23, and the distance on the optical axis from the object side of the first lens to the image surface of the optical imaging lens For TTL, the following relationship is satisfied: 5<TTL/AT23<14.
本發明進一步提供一種成像裝置,其包含如前述之光學攝像透鏡組,及一影像感測元件,其中,所述影像感測元件係設置於所述光學攝像透鏡組之成像面。The present invention further provides an imaging device, which includes the aforementioned optical imaging lens group, and an image sensing element, wherein the image sensing element is arranged on the imaging surface of the optical imaging lens group.
本發明更提供一種電子裝置,其包含如前述之成像裝置。The present invention further provides an electronic device, which includes the aforementioned imaging device.
在以下實施例中,光學攝像透鏡組之各透鏡可為玻璃或塑膠材質,而不以實施例所列舉之材質為限。當透鏡材質為玻璃時,透鏡表面可透過研磨方式或模造的方式進行加工;此外,由於玻璃材質本身耐溫度變化及高硬度特性,可以減輕環境變化對光學攝像透鏡組的影響,進而延長光學攝像透鏡組的使用壽命。當透鏡材質為塑膠時,則有利於減輕光學攝像透鏡組的重量,及降低生產成本。In the following embodiments, each lens of the optical imaging lens group can be made of glass or plastic, and is not limited to the materials listed in the embodiments. When the lens material is glass, the lens surface can be processed by grinding or molding; in addition, because the glass material itself is resistant to temperature changes and high hardness, it can reduce the impact of environmental changes on the optical camera lens group, thereby prolonging the optical camera. The service life of the lens group. When the lens material is plastic, it is beneficial to reduce the weight of the optical camera lens group and reduce the production cost.
在本發明之實施例中,每一個透鏡皆包含朝向被攝物之一物側面,及朝向成像面之一像側面。每一個透鏡的表面形狀係依據所述表面靠近光軸區域(近軸處)的形狀加以定義,例如描述一個透鏡之物側面為凸面時,係表示該透鏡在靠近光軸區域的物側面為凸面,亦即,雖然在實施例中描述該透鏡表面為凸面,而該表面在遠離光軸區域(離軸處)可能是凸面或凹面。每一個透鏡近軸處的形狀係以該面之曲率半徑為正值或負值加以判斷,例如,若一個透鏡之物側面曲率半徑為正值時,則該物側面為凸面;反之,若其曲率半徑為負值,則該物側面為凹面。就一個透鏡之像側面而言,若其曲率半徑為正值,則該像側面為凹面;反之,若其曲率半徑為負值,則該像側面為凸面。In an embodiment of the present invention, each lens includes an object side facing the subject and an image side facing the imaging plane. The surface shape of each lens is defined according to the shape of the surface near the optical axis (paraxial). For example, when describing the object side of a lens as a convex surface, it means that the object side of the lens near the optical axis is convex. , that is, although the lens surface is described as convex in the embodiments, the surface may be convex or concave in a region away from the optical axis (off-axis). The shape of each lens near the axis is judged by the positive or negative value of the radius of curvature of the surface. For example, if the radius of curvature of the object side of a lens is positive, then the object side is convex; otherwise, if the other If the radius of curvature is negative, the side of the object is concave. As far as the image side of a lens is concerned, if the radius of curvature is positive, the image side is concave; on the contrary, if the radius of curvature is negative, the image side is convex.
在本發明之實施例中,每一透鏡的物側面及像側面可以是球面或非球面表面。在透鏡上使用非球面表面有助於修正如球面像差等光學攝像透鏡組的成像像差,減少光學透鏡元件的使用數量。然而,使用非球面透鏡會使整體光學攝像透鏡組的成本提高。雖然在本發明之實施例中,有些光學透鏡的表面係使用球面表面,但仍可以視需要將其設計為非球面表面;或者,有些光學透鏡的表面係使用非球面表面,但仍可以視需要將其設計為球面表面。In an embodiment of the present invention, the object side and the image side of each lens may be spherical or aspheric surfaces. Using an aspheric surface on the lens helps to correct imaging aberrations of the optical camera lens group such as spherical aberration, and reduces the number of optical lens elements used. However, the use of aspheric lenses will increase the cost of the overall optical camera lens assembly. Although in the embodiments of the present invention, some optical lenses use spherical surfaces, they can still be designed as aspheric surfaces as required; or, some optical lenses use aspheric surfaces, but they can still be designed as aspheric surfaces as required. Design it as a spherical surface.
在本發明之實施例中,光學攝像透鏡組之總長TTL(Total Track Length)定義為此光學攝像透鏡組之第一透鏡的物側面至成像面在光軸上之距離。此光學攝像透鏡組之成像高度稱為最大像高ImgH(Image Height);當成像面上設置一影像感測元件時,最大像高ImgH代表影像感測元件的有效感測區域對角線長度之一半。在以下實施例中,所有透鏡的曲率半徑、透鏡厚度、透鏡之間的距離、透鏡組總長TTL、最大像高ImgH和焦距(Focal Length)的單位皆以公厘(mm)加以表示。In an embodiment of the present invention, the total track length (TTL) of the optical imaging lens group is defined as the distance on the optical axis from the object side to the imaging plane of the first lens of the optical imaging lens group. The imaging height of this optical camera lens group is called the maximum image height ImgH (Image Height); when an image sensing element is set on the imaging surface, the maximum image height ImgH represents the length of the diagonal line of the effective sensing area of the image sensing element half. In the following embodiments, the units of the radius of curvature, lens thickness, distance between lenses, total lens group length TTL, maximum image height ImgH, and focal length (Focal Length) of all lenses are expressed in millimeters (mm).
本發明提供一種光學攝像透鏡組, 由物側至像側依序包含第一透鏡、第二透鏡、第三透鏡、光圈、第四透鏡、第五透鏡、第六透鏡及第七透鏡。其中,第一透鏡,具有負屈折力,其物側面為凸面、像側面為凹面;第二透鏡,具有負屈折力,其物側面為凸面、像側面為凹面;第三透鏡,具有負屈折力,其物側面為凹面、像側面為凸面;第四透鏡,具有正屈折力,其物側面為凸面、像側面為凸面;第五透鏡,具有正屈折力,其物側面為凸面、像側面為凸面;第六透鏡,具有負屈折力,其物側面為凹面、像側面為凹面;第七透鏡,具有正屈折力,其物側面為凸面、像側面為凸面;所述光學攝像透鏡組之透鏡總數為七片。The invention provides an optical imaging lens group, which sequentially includes a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens and a seventh lens from the object side to the image side. Among them, the first lens has negative refractive power, its object side is convex, and the image side is concave; the second lens has negative refractive power, its object side is convex, and its image side is concave; the third lens has negative refractive power , the object side is concave and the image side is convex; the fourth lens has positive refraction power, its object side is convex and the image side is convex; the fifth lens has positive refraction power, its object side is convex and the image side is Convex; the sixth lens has negative refractive power, its object side is concave, and its image side is concave; the seventh lens has positive refractive power, its object side is convex, and its image side is convex; the lens of the optical imaging lens group The total is seven slices.
第一透鏡具有負屈折力,其物側面為凸面、像側面為凹面,有助於接收大角度的入射光線,擴大光學攝像透鏡組的收光範圍。The first lens has a negative refractive power, and its object side is convex and its image side is concave, which helps to receive incident light at a large angle and expands the light collection range of the optical camera lens group.
第二透鏡具有負屈折力,其物側面為凸面、像側面為凹面,有利於調整入射光線的傳遞路徑,縮小像差,且藉由連續設置二片負透鏡於光學攝像透鏡組的前端,可以使所述光學攝像透鏡組具有適當之後焦距長度,避免後焦距過長、造成整體光學攝像透鏡組的總長度增加,不利於小型化。The second lens has a negative refractive power, its object side is convex, and its image side is concave, which is beneficial to adjust the transmission path of incident light and reduce aberrations, and by continuously arranging two negative lenses at the front end of the optical camera lens group, it can The optical imaging lens group has an appropriate back focal length, so as to avoid excessively long back focal length, resulting in an increase in the total length of the entire optical imaging lens group, which is not conducive to miniaturization.
第三透鏡亦具有負屈折力,其物側面為凹面、像側面為凸面。藉由第二透鏡之凹面像側面與第三透鏡的凹面物側面相對應設置,可以進一步調整光線的行進方向,有利於降低成像像差。The third lens also has negative refractive power, the object side is concave, and the image side is convex. Since the concave image side of the second lens is arranged corresponding to the concave object side of the third lens, the traveling direction of light can be further adjusted, which is beneficial to reduce imaging aberration.
第四透鏡具有正屈折力,其物側面為凸面、像側面為凸面。藉由在第三透鏡之後設置具有正屈折力之第四透鏡,有助於修正光學攝像透鏡組的場曲像差及球面像差。The fourth lens has positive refractive power, its object side is convex, and its image side is convex. By arranging the fourth lens with positive refractive power after the third lens, it is helpful to correct the field curvature aberration and spherical aberration of the optical camera lens group.
第五透鏡具有正屈折力,其物側面為凸面、像側面為凸面。第五透鏡提供此光學攝像透鏡組的主要正屈折力,具有匯聚光線、調整光路的作用。The fifth lens has positive refractive power, its object side is convex, and its image side is convex. The fifth lens provides the main positive refractive power of the optical camera lens group, and has the functions of converging light and adjusting the light path.
第六透鏡具有負屈折力,其物側面為凹面、像側面為凹面。第七透鏡具有正屈折力,其物側面為凸面、像側面為凸面。藉由第五透鏡、第六透鏡及第七透鏡分別具有正、負、正屈折力之配置方式,可以有效地修正成像像差。The sixth lens has negative refractive power, its object side is concave, and its image side is concave. The seventh lens has positive refractive power, its object side is convex, and its image side is convex. The imaging aberration can be effectively corrected by the arrangement of the fifth lens, the sixth lens and the seventh lens having positive, negative and positive refractive powers respectively.
所述第三透鏡之焦距為f3,整體光學攝像透鏡組之有效焦距為EFL,係滿足以下關係式:The focal length of the third lens is f3, and the effective focal length of the overall optical camera lens group is EFL, which satisfies the following relationship:
-10<f3/EFL< -2;(1)-10<f3/EFL<-2; (1)
藉由滿足關係式(1)的條件,可以使第三透鏡具有適當之負屈折力。若f3/EFL低於關係式(1)的下限值,則第三透鏡的屈折力過低,易縮短光學攝像透鏡組之後焦距;若f3/EFL高於關係式(1)的上限值,則第三透鏡的屈折力過高,不利於將光學攝像透鏡組前端之負屈折力平衡地分配至第一透鏡、第二透鏡及第三透鏡。By satisfying the condition of the relational expression (1), the third lens can have an appropriate negative refractive power. If f3/EFL is lower than the lower limit of relational expression (1), the refractive power of the third lens is too low, and it is easy to shorten the focal length behind the optical camera lens group; if f3/EFL is higher than the upper limit of relational expression (1) , the refractive power of the third lens is too high, which is not conducive to the balanced distribution of the negative refractive power at the front end of the optical imaging lens group to the first lens, the second lens and the third lens.
較佳地,所述第二透鏡在光軸上之厚度為CT2,第三透鏡在光軸上之厚度為CT3,係滿足以下關係式:Preferably, 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, which satisfy the following relationship:
0.6<CT3/CT2<2.6;(2)0.6<CT3/CT2<2.6; (2)
藉由滿足關係式(2)的條件,可以將第二透鏡及第三透鏡二者之厚度控制在適當之比例。By satisfying the condition of relational expression (2), the thicknesses of the second lens and the third lens can be controlled at an appropriate ratio.
所述第三透鏡與該第四透鏡的組合焦距為f34,整體光學攝像透鏡組之有效焦距為EFL,係滿足以下關係式:The combined focal length of the third lens and the fourth lens is f34, and the effective focal length of the overall optical imaging lens group is EFL, which satisfies the following relationship:
3<f34/EFL< 7;(3)3<f34/EFL<7; (3)
藉由滿足關係式(3)的條件,可以使第三透鏡及第四透鏡之組合具有適當之正屈折力,有利於引導光線行進方向,使光線傳遞路徑更接近光軸,以降低成像像差。By satisfying the conditions of relation (3), the combination of the third lens and the fourth lens can have an appropriate positive refractive power, which is conducive to guiding the direction of light, making the light transmission path closer to the optical axis, and reducing imaging aberrations .
所述第一透鏡的焦距為f1,第二透鏡之焦距為f2,係滿足以下關係式:The focal length of the first lens is f1, and the focal length of the second lens is f2, which satisfy the following relationship:
1<f2/f1<4;(4)1<f2/f1<4; (4)
藉由滿足關係式(4)的條件,可以控制第一透鏡與第二透鏡之間屈折力的比例,使第一透鏡的負屈折力大於第二透鏡之負屈折力,有利於擴大光學攝像透鏡組的收光範圍。By satisfying the condition of relation (4), the ratio of the refractive power between the first lens and the second lens can be controlled, so that the negative refractive power of the first lens is greater than the negative refractive power of the second lens, which is conducive to expanding the optical imaging lens The receiving range of the group.
所述第五透鏡與第六透鏡之組合焦距為f56,其與整體光學攝像透鏡組之有效焦距EFL之間,係滿足以下關係式:The combined focal length of the fifth lens and the sixth lens is f56, which satisfies the following relationship with the effective focal length EFL of the overall optical imaging lens group:
2<f56/EFL< 6.5;(5)2<f56/EFL<6.5; (5)
藉由滿足關係式(5)的條件,可以使第五透鏡及第六透鏡之組合焦距與整體光學攝像透鏡組的有效焦距EFL之間維持在適當之比例,有利於降低光學攝像透鏡組的色像差。By satisfying the condition of relation (5), the combined focal length of the fifth lens and the sixth lens can be maintained at an appropriate ratio to the effective focal length EFL of the overall optical imaging lens group, which is beneficial to reduce the chromatic aberration of the optical imaging lens group. aberrations.
所述第六透鏡像側面之曲率半徑為R12,第七透鏡物側面之曲率半徑為R13,係滿足以下關係式:The radius of curvature of the image side of the sixth lens is R12, and the radius of curvature of the object side of the seventh lens is R13, which satisfy the following relationship:
0.4<R12/R13<1.4;(6)0.4<R12/R13<1.4; (6)
藉由滿足關係式(6)的條件,可以使第六透鏡像側面與第七透鏡物側面為凹、凸相對,且可控制第六透鏡像側面與第七透鏡物側面的曲率半徑之間維持適當之比例,有助於降低場曲像差。By satisfying the condition of relation (6), the image side of the sixth lens and the object side of the seventh lens can be concave and convex, and the radius of curvature between the image side of the sixth lens and the object side of the seventh lens can be controlled to maintain Appropriate ratio helps to reduce field curvature aberration.
所述第五透鏡之焦距為f5,其與整體光學攝像透鏡組之有效焦距EFL之間,係滿足以下關係式:The focal length of the fifth lens is f5, which satisfies the following relationship with the effective focal length EFL of the overall optical imaging lens group:
0.9<f5/EFL<1.8;(7)0.9<f5/EFL<1.8; (7)
藉由滿足關係式(7)的條件,可以控制第五透鏡的焦距與整體光學攝像透鏡組的有效焦距EFL間之比例維持在適當之範圍,有利於縮小光學攝像透鏡組的體積,同時保有良好的光學性能。By satisfying the condition of relational expression (7), the ratio between the focal length of the fifth lens and the effective focal length EFL of the overall optical imaging lens group can be controlled and maintained in an appropriate range, which is conducive to reducing the volume of the optical imaging lens group while maintaining a good optical performance.
所述第七透鏡之焦距為f7,其與整體光學攝像透鏡組之有效焦距EFL之間,係滿足以下關係式:The focal length of the seventh lens is f7, which satisfies the following relationship with the effective focal length EFL of the overall optical imaging lens group:
1.5<f7/EFL<2.3;(8)1.5<f7/EFL<2.3; (8)
藉由滿足關係式(8)的條件,可以使第七透鏡具有適當大小之正屈折力。By satisfying the condition of the relational expression (8), the seventh lens can have an appropriate positive refractive power.
所述第四透鏡物側面之曲率半徑為R7、像側面之曲率半徑為R8,係滿足以下關係式:The radius of curvature on the object side of the fourth lens is R7, and the radius of curvature on the image side is R8, which satisfy the following relationship:
-0.9<(R7+R8)/(R8-R7)<0.6;(9)-0.9<(R7+R8)/(R8-R7)<0.6; (9)
藉由滿足關係式(9)的條件,可以使第四透鏡具有適當之透鏡形狀,有助於修正光學攝像透鏡組的成像像差。By satisfying the condition of relational expression (9), the fourth lens can have an appropriate lens shape, which helps to correct the imaging aberration of the optical imaging lens group.
所述第一透鏡、第二透鏡及第三透鏡之組合焦距為f123,其與整體光學攝像透鏡組之有效焦距EFL之間,係滿足以下關係式:The combined focal length of the first lens, the second lens and the third lens is f123, which satisfies the following relationship with the effective focal length EFL of the overall optical imaging lens group:
-1.3<f123/EFL< -0.6;(10)-1.3<f123/EFL<-0.6; (10)
藉由滿足關係式(10)的條件,可以使第一透鏡、第二透鏡及第三透鏡之組合具有適當大小之負屈折力,有助於縮小光學攝像透鏡組的有效焦距及總長度。By satisfying the condition of relational expression (10), the combination of the first lens, the second lens and the third lens can have an appropriate size of negative refractive power, which helps to reduce the effective focal length and total length of the optical imaging lens group.
所述第二透鏡物側面之曲率半徑為R3、像側面之曲率半徑為R4,係滿足以下關係式:The radius of curvature on the object side of the second lens is R3, and the radius of curvature on the image side is R4, which satisfy the following relationship:
1.4<R3/R4<2.3;(11)1.4<R3/R4<2.3; (11)
藉由滿足關係式(11)的條件,可以控制第二透鏡之物側面及像側面的曲率半徑二者之間的比例,有助於接收及傳遞來自第一透鏡的入射光線,以降低成像像差。By satisfying the condition of relation (11), the ratio between the radius of curvature of the object side and the image side of the second lens can be controlled, which helps to receive and transmit the incident light from the first lens to reduce the imaging image Difference.
所述第四透鏡之焦距為f4,其與整體光學攝像透鏡組之有效焦距EFL之間,係滿足以下關係式:The focal length of the fourth lens is f4, which satisfies the following relationship with the effective focal length EFL of the overall optical imaging lens group:
1.6<f4/EFL<3.3;(12)1.6<f4/EFL<3.3; (12)
藉由滿足關係式(12)的條件,可以使第四透鏡具有適當之正屈折力,且第四透鏡設置於具負屈折力的第三透鏡之後,有助於修正場曲像差。By satisfying the condition of the relational expression (12), the fourth lens can have an appropriate positive refractive power, and the fourth lens is arranged behind the third lens with negative refractive power, which helps to correct field curvature aberration.
所述第二透鏡像側面至第三透鏡物側面在光軸上之距離為AT23,而所述第一透鏡物側面至光學攝像透鏡組成像面在光軸上之距離為TTL,係滿足以下關係式:The distance on the optical axis from the image side of the second lens to the object side of the third lens is AT23, and the distance on the optical axis from the object side of the first lens to the imaging surface of the optical imaging lens is TTL, which satisfies the following relationship Mode:
5<TTL/AT23<14;(13)5<TTL/AT23<14; (13)
藉由滿足關係式(13)的條件,有助於控制光學攝像透鏡組的總長度,有利於透鏡組之小型化。 第一實施例 By satisfying the condition of relational expression (13), it is helpful to control the total length of the optical imaging lens group, which is beneficial to the miniaturization of the lens group. first embodiment
參見圖1A及圖1B, 圖1A為本發明第一實施例之光學攝像透鏡組之示意圖。圖1B由左至右依序為本發明第一實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散場曲像差圖(Astigmatism/Field Curvature)及畸變像差圖(Distortion)。Referring to FIG. 1A and FIG. 1B , FIG. 1A is a schematic diagram of an optical imaging lens group according to a first embodiment of the present invention. Fig. 1B is, from left to right, the diagram of Longitudinal Spherical Aberration, Astigmatism/Field Curvature and Distortion of the first embodiment of the present invention.
如圖1A所示,第一實施例之光學攝像透鏡組10由物側至像側依序包含第一透鏡11、第二透鏡12、第三透鏡13、光圈ST、第四透鏡14、第五透鏡15、第六透鏡16及第七透鏡17。此光學攝像透鏡組10更可包含濾光元件18及成像面19。在成像面19上更可設置一影像感測元件100,以構成一成像裝置(未另標號)。As shown in Figure 1A, the optical
第一透鏡11具有負屈折力,其物側面11a為凸面、像側面11b為凹面,且其物側面11a及像側面11b皆為球面。第一透鏡11之材質為玻璃。The
第二透鏡12 具有負屈折力,其物側面12a為凸面、像側面12b為凹面,且其物側面12a及像側面12b皆為非球面。第二透鏡12之材質為塑膠。The
第三透鏡13具有負屈折力,其物側面13a為凹面、像側面13b為凸面,且物側面13a及像側面13b皆為非球面。第三透鏡13之材質為塑膠。The
第四透鏡14具有正屈折力,其物側面14a為凸面,其像側面14b為凸面,且其物側面14a及像側面14b皆為球面。第四透鏡14之材質為玻璃。The
第五透鏡15具有正屈折力,其物側面15a為凸面、像側面15b為凸面,且其物側面15a及像側面15b皆為非球面。第五透鏡15之材質為玻璃。The
第六透鏡16具有負屈折力,其物側面16a為凹面,其像側面16b為凹面,且其物側面16a及像側面16b皆為球面。第六透鏡16之材質為玻璃。The
第七透鏡17具有正屈折力,其物側面17a為凸面、像側面17b為凸面,且其物側面17a及像側面17b皆為非球面。第七透鏡17之材質為塑膠。The
濾光元件18設置於第七透鏡17與成像面19之間,用以濾除特定波長區段的光線,例如是一紅外線濾除元件(IR Filter)。濾光元件18之二表面18a、18b皆為平面,其材質為玻璃。The
影像感測元件(Image Sensor)100例如是電荷耦合元件影像感測元件(Charge-Coupled Device (CCD) Image Sensor)或互補式金屬氧化半導體感測元件(CMOS Image Sensor)。The image sensor (Image Sensor) 100 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a Complementary Metal Oxide Semiconductor Sensor (CMOS Image Sensor).
上述各個非球面之曲線方程式表示如下:The curve equations of the above-mentioned aspheric surfaces are expressed as follows:
其中,X:非球面上距離光軸為Y的點與非球面於光軸上之切面間的距離;Among them, X: the distance between the point on the aspheric surface whose distance from the optical axis is Y and the tangent plane of the aspheric surface on the optical axis;
Y:非球面上的點與光軸間之垂直距離;Y: The vertical distance between the point on the aspheric surface and the optical axis;
R:透鏡於近光軸處的曲率半徑;R: radius of curvature of the lens at the near optical axis;
K:錐面係數;以及K: cone coefficient; and
Ai:第i階非球面係數。Ai: i-th order aspherical coefficient.
請參見下方表一,其為本發明第一實施例之光學攝像透鏡組100的詳細光學數據。其中,第一透鏡11之物側面11a標示為表面11a、像側面11b標示為表面11b,其他各透鏡表面則依此類推。表中距離欄位的數值代表該表面至下一表面在光軸I上的距離,例如第一透鏡11之物側面11a至像側面11b之距離為 0.5 mm,代表第一透鏡11在光軸上的厚度為 0.5 mm。第一透鏡11之像側面11b至第二透鏡12之物側面12a之距離為 0.489 mm。其它可依此類推,以下不再重述。Please refer to Table 1 below, which is the detailed optical data of the optical
第一實施例中,光學攝像透鏡組10之有效焦距為EFL,光圈值(F-number)為Fno,整體光學攝像透鏡組10最大視角之一半為HFOV(Half Field of View),其數值亦列於表一中。
請參見下方表二,其為本發明第一實施例各透鏡之各表面的非球面係數。其中,K為非球面曲線方程式中的錐面係數,A
2至A
16則代表各表面第2階至第16階非球面係數。例如第二透鏡12之物側面12a之錐面係數K為 -0.012。其它可依此類推,以下不再重述。此外,以下各實施例的表格係對應至各實施例之光學攝像透鏡組,各表格的定義係與本實施例相同,故在以下實施例中不再加以贅述。
第一實施例中,所述第三透鏡13的焦距f3與整體光學攝像透鏡組10之有效焦距EFL的關係式為f3/EFL= -5.48。In the first embodiment, the relationship between the focal length f3 of the
第一實施例中,所述第二透鏡12在光軸上之厚度CT2,與第三透鏡13在光軸上之厚度CT3的關係式為 CT3/CT2=1.17。In the first embodiment, the relationship between the thickness CT2 of the
第一實施例中,所述第三透鏡13及第四透鏡14之組合焦距f34,與整體光學攝像透鏡組10之有效焦距EFL的關係式為f34/EFL=5.07。In the first embodiment, the relationship between the combined focal length f34 of the
第一實施例中,所述第一透鏡11的焦距f1,與第二透鏡12的焦距f2之關係式為f2/f1=1.09。In the first embodiment, the relationship between the focal length f1 of the
第一實施例中,所述第五透鏡15及第六透鏡16之組合焦距f56,與整體光學攝像透鏡組10之有效焦距EFL的關係式為f56/EFL=5.38。In the first embodiment, the relationship between the combined focal length f56 of the
第一實施例中,所述第六透鏡16像側面16b的曲率半徑R12,與第七透鏡17物側面17a的曲率半徑R13之關係式為R12/R13=1.20。In the first embodiment, the relationship between the radius of curvature R12 of the
第一實施例中,所述第五透鏡15之焦距f5,與整體光學攝像透鏡組10之有效焦距EFL的關係式為f5/EFL=1.55。In the first embodiment, the relationship between the focal length f5 of the
第一實施例中,所述第七透鏡17之焦距f7,與整體光學攝像透鏡組10之有效焦距EFL的關係式為f7/EFL=2.10。In the first embodiment, the relationship between the focal length f7 of the
第一實施例中,所述第四透鏡14物側面14a的曲率半徑R7、像側面14b的曲率半徑R8之間的關係式為
= 0.18。
In the first embodiment, the relational expression between the radius of curvature R7 of the object side 14a of the
第一實施例中,所述第一透鏡11、第二透鏡12、第三透鏡13及第四透鏡14之組合焦距f1234= -7.62。In the first embodiment, the combined focal length f1234 of the
第一實施例中,所述第一透鏡11、第二透鏡12及第三透鏡13之組合焦距f123,與整體光學攝像透鏡組10之有效焦距EFL的關係式為f123/EFL= -1.04。In the first embodiment, the relationship between the combined focal length f123 of the
第一實施例中,所述第二透鏡12物側面12a的曲率半徑R3、像側面12b的曲率半徑R4的關係式為R3/R4=2.15。In the first embodiment, the relationship between the radius of curvature R3 of the
第一實施例中,所述第四透鏡的焦距f4,與整體光學攝像透鏡組10之有效焦距EFL的關係式為f4/EFL=2.93。In the first embodiment, the relationship between the focal length f4 of the fourth lens and the effective focal length EFL of the overall optical
第一實施例中,所述第二透鏡12像側面12b至所述第三透鏡13物側面13a在光軸上之距離AT23,與所述第一透鏡11物側面11a至光學攝像透鏡組10之成像面19在光軸上之距離TTL的關係式為TTL/AT23=6.55。In the first embodiment, the distance AT23 between the
由以上關係式的數值可知,第一實施例之光學攝像透鏡組10滿足關係式(1)至(13)的要求。It can be seen from the values of the above relational expressions that the optical
參見圖1B,圖中由左至右分別為光學攝像透鏡組10之縱向球差圖、像散場曲像差圖及畸變像差圖。由縱向球差圖可以看出,三種可見光470nm、550nm及650nm波長在不同高度的離軸光線皆可集中於成像點附近,其成像點偏差可以控制在
+0.02mm以內。由像散場曲像差圖(波長550nm)可以看出,弧矢方向的像差在整個視場範圍內的焦距變化量在
+0.02mm以內;子午方向的像差在整個視場範圍內的焦距變化量在
+0.05mm以內;而畸變像差可以控制在15%以內。如圖1B所示,本實施例之光學攝像透鏡組10已良好地修正了各項像差,符合光學系統的成像品質要求。
第二實施例 Referring to FIG. 1B , from left to right in the figure are the longitudinal spherical aberration diagram, the astigmatism field curvature aberration diagram and the distortion aberration diagram of the optical
參見圖2A及圖2B, 圖2A為本發明第二實施例之光學攝像透鏡組之示意圖。圖2B由左至右依序為本發明第二實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散場曲像差圖(Astigmatism/Field Curvature)及畸變像差圖(Distortion)。Referring to FIG. 2A and FIG. 2B , FIG. 2A is a schematic diagram of an optical imaging lens group according to a second embodiment of the present invention. Fig. 2B is, from left to right, the diagram of Longitudinal Spherical Aberration, Astigmatism/Field Curvature and Distortion of the second embodiment of the present invention.
如圖2A所示,第二實施例之光學攝像透鏡組20由物側至像側依序包含第一透鏡21、第二透鏡22、第三透鏡23、光圈ST、第四透鏡24、第五透鏡25、第六透鏡26及第七透鏡27。此光學攝像透鏡組20更可包含濾光元件28及成像面29。在成像面29上更可設置一影像感測元件200,以構成一成像裝置(未另標號)。As shown in Figure 2A, the optical
第一透鏡21具有負屈折力,其物側面21a為凸面、像側面21b為凹面,且其物側面21a及像側面21b皆為球面。第一透鏡21之材質為玻璃。The
第二透鏡22 具有負屈折力,其物側面22a為凸面、像側面22b為凹面,且其物側面22a及像側面22b皆為非球面。第二透鏡22之材質為塑膠。The
第三透鏡23具有負屈折力,其物側面23a為凹面、像側面23b為凸面,且物側面23a及像側面23b皆為非球面。第三透鏡23之材質為塑膠。The
第四透鏡24具有正屈折力,其物側面24a為凸面,其像側面24b為凸面,且其物側面24a及像側面24b皆為球面。第四透鏡24之材質為玻璃。The
第五透鏡25具有正屈折力,其物側面25a為凸面、像側面25b為凸面,且其物側面25a及像側面25b皆為非球面。第五透鏡25之材質為玻璃。The
第六透鏡26具有負屈折力,其物側面26a為凹面,其像側面26b為凹面,且其物側面26a及像側面26b皆為球面。第六透鏡26之材質為玻璃。The
第七透鏡27具有正屈折力,其物側面27a為凸面、像側面27b為凸面,且其物側面27a及像側面27b皆為非球面。第七透鏡27之材質為塑膠。The
濾光元件28設置於第七透鏡27與成像面29之間,用以濾除特定波長區段的光線,例如是一紅外線濾除元件(IR Filter)。濾光元件28之二表面28a、28b皆為平面,其材質為玻璃。The
影像感測元件(Image Sensor)200例如是電荷耦合元件影像感測元件(Charge-Coupled Device (CCD) Image Sensor)或互補式金屬氧化半導體感測元件(CMOS Image Sensor)。The image sensor (Image Sensor) 200 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a Complementary Metal Oxide Semiconductor Sensor (CMOS Image Sensor).
第二實施例之光學攝像透鏡組20之詳細光學數據及透鏡表面之非球面係數分別列於表三及表四。在第二實施例中,非球面之曲線方程式表示如第一實施例的形式。
在第二實施例中,光學攝像透鏡組20之各關係式的數值列於表五。由表五可知,第二實施例之光學攝像透鏡組20滿足關係式(1)至(13)的要求。
參見圖2B,圖中由左至右分別為光學攝像透鏡組20之縱向球差圖、像散場曲像差圖及畸變像差圖。由縱向球差圖可以看出,三種可見光470nm、550nm及650nm波長在不同高度的離軸光線皆可集中於成像點附近,其成像點偏差可以控制在
+0.03mm以內。由像散場曲像差圖(波長550nm)可以看出,弧矢方向的像差在整個視場範圍內的焦距變化量在
+0.04mm以內;子午方向的像差在整個視場範圍內的焦距變化量在
+0.03mm以內;而畸變像差可以控制在7%以內。如圖2B所示,本實施例之光學攝像透鏡組20已良好地修正了各項像差,符合光學系統的成像品質要求。
第三實施例 Referring to FIG. 2B , from left to right in the figure are the longitudinal spherical aberration diagram, astigmatism field curvature aberration diagram and distortion aberration diagram of the optical
參見圖3A及圖3B, 圖3A為本發明第三實施例之光學攝像透鏡組之示意圖。圖3B由左至右依序為本發明第三實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散場曲像差圖(Astigmatism/Field Curvature)及畸變像差圖(Distortion)。Referring to FIG. 3A and FIG. 3B , FIG. 3A is a schematic diagram of an optical imaging lens group according to a third embodiment of the present invention. Fig. 3B is, from left to right, the diagram of Longitudinal Spherical Aberration, Astigmatism/Field Curvature and Distortion of the third embodiment of the present invention.
如圖3A所示,第三實施例之光學攝像透鏡組30由物側至像側依序包含第一透鏡31、第二透鏡32、第三透鏡33、光圈ST、第四透鏡34、第五透鏡35、第六透鏡36及第七透鏡37。此光學攝像透鏡組30更可包含濾光元件38及成像面39。在成像面39上更可設置一影像感測元件300,以構成一成像裝置(未另標號)。As shown in Figure 3A, the optical
第一透鏡31具有負屈折力,其物側面31a為凸面、像側面31b為凹面,且其物側面31a及像側面31b皆為球面。第一透鏡31之材質為玻璃。The
第二透鏡32 具有負屈折力,其物側面32a為凸面、像側面32b為凹面,且其物側面32a及像側面32b皆為非球面。第二透鏡32之材質為塑膠。The
第三透鏡33具有負屈折力,其物側面33a為凹面、像側面33b為凸面,且物側面33a及像側面33b皆為非球面。第三透鏡33之材質為塑膠。The
第四透鏡34具有正屈折力,其物側面34a為凸面,其像側面34b為凸面,且其物側面34a及像側面34b皆為球面。第四透鏡34之材質為玻璃。The
第五透鏡35具有正屈折力,其物側面35a為凸面、像側面35b為凸面,且其物側面35a及像側面35b皆為非球面。第五透鏡35之材質為玻璃。The
第六透鏡36具有負屈折力,其物側面36a為凹面,其像側面36b為凹面,且其物側面36a及像側面36b皆為球面。第六透鏡36之材質為玻璃。The
第七透鏡37具有正屈折力,其物側面37a為凸面、像側面37b為凸面,且其物側面37a及像側面37b皆為非球面。第七透鏡37之材質為塑膠。The
濾光元件38設置於第七透鏡37與成像面39之間,用以濾除特定波長區段的光線,例如是一紅外線濾除元件(IR Filter)。濾光元件38之二表面38a、38b皆為平面,其材質為玻璃。The
影像感測元件(Image Sensor)300例如是電荷耦合元件影像感測元件(Charge-Coupled Device (CCD) Image Sensor)或互補式金屬氧化半導體感測元件(CMOS Image Sensor)。The image sensor (Image Sensor) 300 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a Complementary Metal Oxide Semiconductor Sensor (CMOS Image Sensor).
第三實施例之光學攝像透鏡組30之詳細光學數據及透鏡表面之非球面係數分別列於表六及表七。在第三實施例中,非球面之曲線方程式表示如第一實施例的形式。
在第三實施例中,光學攝像透鏡組30之各關係式的數值列於表八。由表八可知,第三實施例之光學攝像透鏡組30滿足關係式(1)至(13)的要求。
參見圖3B,圖中由左至右分別為光學攝像透鏡組30之縱向球差圖、像散場曲像差圖及畸變像差圖。由縱向球差圖可以看出,三種可見光470nm、550nm及650nm波長在不同高度的離軸光線皆可集中於成像點附近,其成像點偏差可以控制在
+0.04mm以內。由像散場曲像差圖(波長550nm)可以看出,弧矢方向的像差在整個視場範圍內的焦距變化量在
+0.03mm以內;子午方向的像差在整個視場範圍內的焦距變化量在
+0.05mm以內;而畸變像差可以控制在5%以內。如圖3B所示,本實施例之光學攝像透鏡組30已良好地修正了各項像差,符合光學系統的成像品質要求。
第四實施例 Referring to FIG. 3B , from left to right in the figure are the longitudinal spherical aberration diagram, the astigmatism field curvature aberration diagram and the distortion aberration diagram of the optical
參見圖4A及圖4B, 圖4A為本發明第四實施例之光學攝像透鏡組之示意圖。圖4B由左至右依序為本發明第四實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散場曲像差圖(Astigmatism/Field Curvature)及畸變像差圖(Distortion)。Referring to FIG. 4A and FIG. 4B, FIG. 4A is a schematic diagram of an optical imaging lens group according to a fourth embodiment of the present invention. Fig. 4B is, from left to right, the diagram of Longitudinal Spherical Aberration, Astigmatism/Field Curvature and Distortion of the fourth embodiment of the present invention.
如圖4A所示,第四實施例之光學攝像透鏡組40由物側至像側依序包含第一透鏡41、第二透鏡42、第三透鏡43、光圈ST、第四透鏡44、第五透鏡45、第六透鏡46及第七透鏡47。此光學攝像透鏡組40更可包含濾光元件48及成像面49。在成像面49上更可設置一影像感測元件400,以構成一成像裝置(未另標號)。As shown in Figure 4A, the optical
第一透鏡41具有負屈折力,其物側面41a為凸面、像側面41b為凹面,且其物側面41a及像側面41b皆為球面。第一透鏡41之材質為玻璃。The
第二透鏡42 具有負屈折力,其物側面42a為凸面、像側面42b為凹面,且其物側面42a及像側面42b皆為非球面。第二透鏡42之材質為塑膠。The
第三透鏡43具有負屈折力,其物側面43a為凹面、像側面43b為凸面,且物側面43a及像側面43b皆為非球面。第三透鏡43之材質為塑膠。The
第四透鏡44具有正屈折力,其物側面44a為凸面,其像側面44b為凸面,且其物側面44a及像側面44b皆為球面。第四透鏡44之材質為玻璃。The
第五透鏡45具有正屈折力,其物側面45a為凸面、像側面45b為凸面,且其物側面45a及像側面45b皆為非球面。第五透鏡45之材質為玻璃。The
第六透鏡46具有負屈折力,其物側面46a為凹面,其像側面46b為凹面,且其物側面46a及像側面46b皆為球面。第六透鏡46之材質為玻璃。The
第七透鏡47具有正屈折力,其物側面47a為凸面、像側面47b為凸面,且其物側面47a及像側面47b皆為非球面。第七透鏡47之材質為塑膠。The
濾光元件48設置於第七透鏡47與成像面49之間,用以濾除特定波長區段的光線,例如是一紅外線濾除元件(IR Filter)。濾光元件48之二表面48a、48b皆為平面,其材質為玻璃。The
影像感測元件(Image Sensor)400例如是電荷耦合元件影像感測元件(Charge-Coupled Device (CCD) Image Sensor)或互補式金屬氧化半導體感測元件(CMOS Image Sensor)。The image sensor (Image Sensor) 400 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a Complementary Metal Oxide Semiconductor Sensor (CMOS Image Sensor).
第四實施例之光學攝像透鏡組40之詳細光學數據及透鏡表面之非球面係數分別列於表九及表十。在第四實施例中,非球面之曲線方程式表示如第一實施例的形式。
在第四實施例中,光學攝像透鏡組40之各關係式的數值列於表十一。由表十一可知,第四實施例之光學攝像透鏡組40滿足關係式(1)至(13)的要求。
參見圖4B,圖中由左至右分別為光學攝像透鏡組40之縱向球差圖、像散場曲像差圖及畸變像差圖。由縱向球差圖可以看出,三種可見光470nm、550nm及650nm波長在不同高度的離軸光線皆可集中於成像點附近,其成像點偏差可以控制在
+0.05mm以內。由像散場曲像差圖(波長550nm)可以看出,弧矢方向的像差在整個視場範圍內的焦距變化量在
+0.06mm以內;子午方向的像差在整個視場範圍內的焦距變化量在
+0.08mm以內;而畸變像差可以控制在6%以內。如圖4B所示,本實施例之光學攝像透鏡組40已良好地修正了各項像差,符合光學系統的成像品質要求。
第五實施例 Referring to FIG. 4B , from left to right in the figure are the longitudinal spherical aberration diagram, the astigmatism field curvature aberration diagram and the distortion aberration diagram of the optical
參見圖5A及圖5B, 圖5A為本發明第五實施例之光學攝像透鏡組之示意圖。圖5B由左至右依序為本發明第五實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散場曲像差圖(Astigmatism/Field Curvature)及畸變像差圖(Distortion)。Referring to FIG. 5A and FIG. 5B , FIG. 5A is a schematic diagram of an optical imaging lens group according to a fifth embodiment of the present invention. Fig. 5B is, from left to right, the diagram of Longitudinal Spherical Aberration, Astigmatism/Field Curvature and Distortion of the fifth embodiment of the present invention.
如圖5A所示,第五實施例之光學攝像透鏡組50由物側至像側依序包含第一透鏡51、第二透鏡52、第三透鏡53、光圈ST、第四透鏡54、第五透鏡55、第六透鏡56及第七透鏡57。此光學攝像透鏡組50更可包含濾光元件58及成像面59。在成像面59上更可設置一影像感測元件500,以構成一成像裝置(未另標號)。As shown in FIG. 5A, the optical imaging lens group 50 of the fifth embodiment includes a
第一透鏡51具有負屈折力,其物側面51a為凸面、像側面51b為凹面,且其物側面51a及像側面51b皆為球面。第一透鏡51之材質為玻璃。The
第二透鏡52 具有負屈折力,其物側面52a為凸面、像側面52b為凹面,且其物側面52a及像側面52b皆為非球面。第二透鏡52之材質為塑膠。The
第三透鏡53具有負屈折力,其物側面53a為凹面、像側面53b為凸面,且物側面53a及像側面53b皆為非球面。第三透鏡53之材質為塑膠。The
第四透鏡54具有正屈折力,其物側面54a為凸面,其像側面54b為凸面,且其物側面54a及像側面54b皆為球面。第四透鏡54之材質為玻璃。The
第五透鏡55具有正屈折力,其物側面55a為凸面、像側面55b為凸面,且其物側面55a及像側面55b皆為非球面。第五透鏡55之材質為玻璃。The
第六透鏡56具有負屈折力,其物側面56a為凹面,其像側面56b為凹面,且其物側面56a及像側面56b皆為球面。第六透鏡56之材質為玻璃。The
第七透鏡57具有正屈折力,其物側面57a為凸面、像側面57b為凸面,且其物側面57a及像側面57b皆為非球面。第七透鏡57之材質為塑膠。The
濾光元件58設置於第七透鏡57與成像面59之間,用以濾除特定波長區段的光線,例如是一紅外線濾除元件(IR Filter)。濾光元件58之二表面58a、58b皆為平面,其材質為玻璃。The
影像感測元件(Image Sensor)500例如是電荷耦合元件影像感測元件(Charge-Coupled Device (CCD) Image Sensor)或互補式金屬氧化半導體感測元件(CMOS Image Sensor)。The image sensor (Image Sensor) 500 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a Complementary Metal Oxide Semiconductor Sensor (CMOS Image Sensor).
第五實施例之光學攝像透鏡組50之詳細光學數據及透鏡表面之非球面係數分別列於表十二及表十三。在第五實施例中,非球面之曲線方程式表示如第一實施例的形式。
在第五實施例中,光學攝像透鏡組50之各關係式的數值列於表十四。由表十四可知,第五實施例之光學攝像透鏡組50滿足關係式(1)至(13)的要求。
參見圖5B,圖中由左至右分別為光學攝像透鏡組50之縱向球差圖、像散場曲像差圖及畸變像差圖。由縱向球差圖可以看出,三種可見光470nm、550nm及650nm波長在不同高度的離軸光線皆可集中於成像點附近,其成像點偏差可以控制在 +0.05mm以內。由像散場曲像差圖(波長550nm)可以看出,弧矢方向的像差在整個視場範圍內的焦距變化量在 +0.04mm以內;子午方向的像差在整個視場範圍內的焦距變化量在 +0.04mm以內;而畸變像差可以控制在13%以內。如圖5B所示,本實施例之光學攝像透鏡組50已良好地修正了各項像差,符合光學系統的成像品質要求。 第六實施例 Referring to FIG. 5B , from left to right in the figure are the longitudinal spherical aberration diagram, the astigmatism field curvature aberration diagram and the distortion aberration diagram of the optical imaging lens group 50 . It can be seen from the longitudinal spherical aberration diagram that the off-axis rays of the three visible light wavelengths of 470nm, 550nm and 650nm at different heights can be concentrated near the imaging point, and the deviation of the imaging point can be controlled within + 0.05mm. From the astigmatism and field curvature aberration diagram (wavelength 550nm), it can be seen that the focal length variation of the sagittal direction aberration in the entire field of view is within + 0.04mm; The variation is within + 0.04mm; and the distortion aberration can be controlled within 13%. As shown in FIG. 5B , the optical imaging lens group 50 of this embodiment has well corrected various aberrations and meets the imaging quality requirements of the optical system. Sixth embodiment
參見圖6A及圖6B, 圖6A為本發明第六實施例之光學攝像透鏡組之示意圖。圖6B由左至右依序為本發明第六實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散場曲像差圖(Astigmatism/Field Curvature)及畸變像差圖(Distortion)。Referring to FIG. 6A and FIG. 6B , FIG. 6A is a schematic diagram of an optical imaging lens group according to a sixth embodiment of the present invention. Fig. 6B is, from left to right, the diagram of Longitudinal Spherical Aberration, Astigmatism/Field Curvature and Distortion of the sixth embodiment of the present invention.
如圖6A所示,第六實施例之光學攝像透鏡組60由物側至像側依序包含第一透鏡61、第二透鏡62、第三透鏡63、光圈ST、第四透鏡64、第五透鏡65、第六透鏡66及第七透鏡67。此光學攝像透鏡組60更可包含濾光元件68及成像面69。在成像面69上更可設置一影像感測元件600,以構成一成像裝置(未另標號)。As shown in FIG. 6A, the optical
第一透鏡61具有負屈折力,其物側面61a為凸面、像側面61b為凹面,且其物側面61a及像側面61b皆為球面。第一透鏡61之材質為玻璃。The
第二透鏡62 具有負屈折力,其物側面62a為凸面、像側面62b為凹面,且其物側面62a及像側面62b皆為非球面。第二透鏡62之材質為塑膠。The
第三透鏡63具有負屈折力,其物側面63a為凹面、像側面63b為凸面,且物側面63a及像側面63b皆為非球面。第三透鏡63之材質為塑膠。The
第四透鏡64具有正屈折力,其物側面64a為凸面,其像側面64b為凸面,且其物側面64a及像側面64b皆為球面。第四透鏡64之材質為玻璃。The
第五透鏡65具有正屈折力,其物側面65a為凸面、像側面65b為凸面,且其物側面65a及像側面65b皆為非球面。第五透鏡65之材質為玻璃。The
第六透鏡66具有負屈折力,其物側面66a為凹面,其像側面66b為凹面,且其物側面66a及像側面66b皆為球面。第六透鏡66之材質為玻璃。The
第七透鏡67具有正屈折力,其物側面67a為凸面、像側面67b為凸面,且其物側面67a及像側面67b皆為非球面。第七透鏡67之材質為塑膠。The
濾光元件68設置於第七透鏡67與成像面69之間,用以濾除特定波長區段的光線,例如是一紅外線濾除元件(IR Filter)。濾光元件68之二表面68a、68b皆為平面,其材質為玻璃。The
影像感測元件(Image Sensor)600例如是電荷耦合元件影像感測元件(Charge-Coupled Device (CCD) Image Sensor)或互補式金屬氧化半導體感測元件(CMOS Image Sensor)。The image sensor (Image Sensor) 600 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a Complementary Metal Oxide Semiconductor Sensor (CMOS Image Sensor).
第六實施例之光學攝像透鏡組60之詳細光學數據及透鏡表面之非球面係數分別列於表十五及表十六。在第六實施例中,非球面之曲線方程式表示如第一實施例的形式。
在第六實施例中,光學攝像透鏡組60之各關係式的數值列於表十七。由表十七可知,第六實施例之光學攝像透鏡組60滿足關係式(1)至(13)的要求。
參見圖6B,圖中由左至右分別為光學攝像透鏡組60之縱向球差圖、像散場曲像差圖及畸變像差圖。由縱向球差圖可以看出,三種可見光470nm、550nm及650nm波長在不同高度的離軸光線皆可集中於成像點附近,其成像點偏差可以控制在
+0.03mm以內。由像散場曲像差圖(波長550nm)可以看出,弧矢方向的像差在整個視場範圍內的焦距變化量在
+0.03mm以內;子午方向的像差在整個視場範圍內的焦距變化量在
+0.04mm以內;而畸變像差可以控制在21%以內。如圖6B所示,本實施例之光學攝像透鏡組60已良好地修正了各項像差,符合光學系統的成像品質要求。
第七實施例 Referring to FIG. 6B , from left to right in the figure are the longitudinal spherical aberration diagram, the astigmatism field curvature aberration diagram and the distortion aberration diagram of the optical
參見圖7A及圖7B, 圖7A為本發明第七實施例之光學攝像透鏡組之示意圖。圖7B由左至右依序為本發明第七實施例之縱向球差圖(Longitudinal Spherical Aberration)、像散場曲像差圖(Astigmatism/Field Curvature)及畸變像差圖(Distortion)。Referring to FIG. 7A and FIG. 7B, FIG. 7A is a schematic diagram of an optical imaging lens group according to a seventh embodiment of the present invention. Fig. 7B is, from left to right, the diagram of Longitudinal Spherical Aberration, Astigmatism/Field Curvature and Distortion of the seventh embodiment of the present invention.
如圖7A所示,第七實施例之光學攝像透鏡組70由物側至像側依序包含第一透鏡71、第二透鏡72、第三透鏡73、光圈ST、第四透鏡74、第五透鏡75、第六透鏡76及第七透鏡77。此光學攝像透鏡組70更可包含濾光元件78及成像面79。在成像面79上更可設置一影像感測元件700,以構成一成像裝置(未另標號)。As shown in Figure 7A, the optical
第一透鏡71具有負屈折力,其物側面71a為凸面、像側面71b為凹面,且其物側面71a及像側面71b皆為球面。第一透鏡71之材質為玻璃。The
第二透鏡72 具有負屈折力,其物側面72a為凸面、像側面72b為凹面,且其物側面72a及像側面72b皆為非球面。第二透鏡72之材質為塑膠。The
第三透鏡73具有負屈折力,其物側面73a為凹面、像側面73b為凸面,且物側面73a及像側面73b皆為非球面。第三透鏡73之材質為塑膠。The
第四透鏡74具有正屈折力,其物側面74a為凸面,其像側面74b為凸面,且其物側面74a及像側面74b皆為球面。第四透鏡74之材質為玻璃。The
第五透鏡75具有正屈折力,其物側面75a為凸面、像側面75b為凸面,且其物側面75a及像側面75b皆為非球面。第五透鏡75之材質為玻璃。The
第六透鏡76具有負屈折力,其物側面76a為凹面,其像側面76b為凹面,且其物側面76a及像側面76b皆為球面。第六透鏡76之材質為玻璃。The
第七透鏡77具有正屈折力,其物側面77a為凸面、像側面77b為凸面,且其物側面77a及像側面77b皆為非球面。第七透鏡77之材質為塑膠。The
濾光元件78設置於第七透鏡77與成像面79之間,用以濾除特定波長區段的光線,例如是一紅外線濾除元件(IR Filter)。濾光元件78之二表面78a、78b皆為平面,其材質為玻璃。The
影像感測元件(Image Sensor)700例如是電荷耦合元件影像感測元件(Charge-Coupled Device (CCD) Image Sensor)或互補式金屬氧化半導體感測元件(CMOS Image Sensor)。The image sensor (Image Sensor) 700 is, for example, a Charge-Coupled Device (CCD) Image Sensor or a Complementary Metal Oxide Semiconductor Sensor (CMOS Image Sensor).
第七實施例之光學攝像透鏡組70之詳細光學數據及透鏡表面之非球面係數分別列於表十八及表十九。在第七實施例中,非球面之曲線方程式表示如第一實施例的形式。
在第七實施例中,光學攝像透鏡組70之各關係式的數值列於表二十。由表二十可知,第七實施例之光學攝像透鏡組70滿足關係式(1)至(13)的要求。
參見圖7B,圖中由左至右分別為光學攝像透鏡組70之縱向球差圖、像散場曲像差圖及畸變像差圖。由縱向球差圖可以看出,三種可見光470nm、550nm及650nm波長在不同高度的離軸光線皆可集中於成像點附近,其成像點偏差可以控制在
+0.03mm以內。由像散場曲像差圖(波長550nm)可以看出,弧矢方向的像差在整個視場範圍內的焦距變化量在
+0.03mm以內;子午方向的像差在整個視場範圍內的焦距變化量在
+0.03mm以內;而畸變像差可以控制在12%以內。如圖7B所示,本實施例之光學攝像透鏡組70已良好地修正了各項像差,符合光學系統的成像品質要求。
第八實施例 Referring to FIG. 7B , from left to right in the figure are the longitudinal spherical aberration diagram, the astigmatism field curvature aberration diagram and the distortion aberration diagram of the optical
本發明第八實施例為一成像裝置,此成像裝置包含如前述第一至第七實施例之光學攝像透鏡組,及一影像感測元件。影像感測元件例如是電荷耦合元件(Charge-Coupled Device,CCD)或互補式金屬氧化半導體(Complementary Metal Oxide Semiconductor,CMOS)影像感測元件等。此成像裝置例如是車用攝影之相機模組、可攜式電子產品之相機模組,或監控攝影機之相機模組等。 第九實施例 The eighth embodiment of the present invention is an imaging device, which includes the optical imaging lens group as in the aforementioned first to seventh embodiments, and an image sensing element. The image sensing element is, for example, a Charge-Coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS) image sensing element. The imaging device is, for example, a camera module for vehicle photography, a camera module for portable electronic products, or a camera module for surveillance cameras. Ninth embodiment
請參照圖8,圖中係繪示本發明第九實施例之電子裝置1000的示意圖。如圖所示,電子裝置1000包含一成像裝置1010。成像裝置1010例如是前述第八實施例之成像裝置,可以由本發明之光學攝像透鏡組及一影像感測元件所構成。此電子裝置1000例如是車用攝影裝置、監視攝影機或空拍攝影機等。Please refer to FIG. 8 , which is a schematic diagram of an
雖然本發明使用前述數個實施例加以說明,然而該些實施例並非用以限制本發明之範圍。對本發明所屬技術領域具有通常知識者而言,在不脫離本發明之精神與範圍內,仍可以參照本發明所揭露的實施例內容進行形式上和細節上的多種變化。是故,此處需明白的是,本發明係以下列申請專利範圍所界定者為準,任何在申請專利範圍內或其等效的範圍內所作的各種變化,仍應落入本發明之申請專利範圍之內。Although the present invention has been described using the preceding several examples, these examples are not intended to limit the scope of the present invention. For those skilled in the technical field of the present invention, without departing from the spirit and scope of the present invention, various changes in form and details can still be made with reference to the disclosed embodiments of the present invention. Therefore, what needs to be understood here is that the present invention is defined by the scope of the following patent application, and any changes made within the scope of the patent application or its equivalent scope should still fall into the application within the scope of the patent.
10、20、30、40、50、60、70:光學攝像透鏡組 11、21、31、41、51、61、71:第一透鏡 12、22、32、42、52、62、72:第二透鏡 13、23、33、43、53、63、73:第三透鏡 14、24、34、44、54、64、74:第四透鏡 15、25、35、45、55、65、75:第五透鏡 16、26、36、46、56、66、76:第六透鏡 17、27、37、47、57、67、77:第七透鏡 18、28、38、48、58、68、78:濾光元件 19、29、39、49、59、69、79:成像面 11a、21a、31a、41a、51a、61a、71a:第一透鏡之物側面 11b、21b、31b、41b、51b、61b、71b:第一透鏡之像側面 12a、22a、32a、42a、52a、62a、72a:第二透鏡之物側面 12b、22b、32b、42b、52b、62b、72b:第二透鏡之像側面 13a、23a、33a、43a、53a、63a、73a:第三透鏡之物側面 13b、23b、33b、43b、53b、63b、73b:第三透鏡之像側面 14a、24a、34a、44a、54a、64a、74a:第四透鏡之物側面 14b、24b、34b、44b、54b、64b、74b:第四透鏡之像側面 15a、25a、35a、45a、55a、65a、75a:第五透鏡之物側面 15b、25b、35b、45b、55b、65b、75b:第五透鏡之像側面 16a、26a、36a、46a、56a、66a、76a:第六透鏡之物側面 16b、26b、36b、46b、56b、66b、76b:第六透鏡之像側面 17a、27a、37a、47a、57a、67a、77a:第七透鏡之物側面 17b、27b、37b、47b、57b、67b、77b:第七透鏡之像側面 18a、18b、28a、28b、38a、38b、48a、48b、58a、58b、68a、68b、78a、78b:濾光元件之二表面 100、200、300、400、500、600、700:影像感測元件 1000:電子裝置 1010:成像裝置 I:光軸 ST:光圈 10, 20, 30, 40, 50, 60, 70: optical camera lens group 11, 21, 31, 41, 51, 61, 71: first lens 12, 22, 32, 42, 52, 62, 72: second lens 13, 23, 33, 43, 53, 63, 73: third lens 14, 24, 34, 44, 54, 64, 74: fourth lens 15, 25, 35, 45, 55, 65, 75: fifth lens 16, 26, 36, 46, 56, 66, 76: sixth lens 17, 27, 37, 47, 57, 67, 77: the seventh lens 18, 28, 38, 48, 58, 68, 78: filter elements 19, 29, 39, 49, 59, 69, 79: imaging surface 11a, 21a, 31a, 41a, 51a, 61a, 71a: the object side of the first lens 11b, 21b, 31b, 41b, 51b, 61b, 71b: image side of the first lens 12a, 22a, 32a, 42a, 52a, 62a, 72a: the object side of the second lens 12b, 22b, 32b, 42b, 52b, 62b, 72b: the image side of the second lens 13a, 23a, 33a, 43a, 53a, 63a, 73a: the object side of the third lens 13b, 23b, 33b, 43b, 53b, 63b, 73b: the image side of the third lens 14a, 24a, 34a, 44a, 54a, 64a, 74a: the object side of the fourth lens 14b, 24b, 34b, 44b, 54b, 64b, 74b: the image side of the fourth lens 15a, 25a, 35a, 45a, 55a, 65a, 75a: the object side of the fifth lens 15b, 25b, 35b, 45b, 55b, 65b, 75b: image side of the fifth lens 16a, 26a, 36a, 46a, 56a, 66a, 76a: the object side of the sixth lens 16b, 26b, 36b, 46b, 56b, 66b, 76b: the image side of the sixth lens 17a, 27a, 37a, 47a, 57a, 67a, 77a: the object side of the seventh lens 17b, 27b, 37b, 47b, 57b, 67b, 77b: image side of the seventh lens 18a, 18b, 28a, 28b, 38a, 38b, 48a, 48b, 58a, 58b, 68a, 68b, 78a, 78b: two surfaces of the filter element 100, 200, 300, 400, 500, 600, 700: Image sensor 1000: electronic device 1010: Imaging device I: optical axis ST: Aperture
〔圖1A〕為本發明第一實施例之光學攝像透鏡組示意圖; 〔圖1B〕由左至右依序為本發明第一實施例之縱向球差圖、像散場曲像差圖及畸變像差圖; 〔圖2A〕為本發明第二實施例之光學攝像透鏡組示意圖; 〔圖2B〕由左至右依序為本發明第二實施例之縱向球差圖、像散場曲像差圖及畸變像差圖; 〔圖3A〕為本發明第三實施例之光學攝像透鏡組示意圖; 〔圖3B〕由左至右依序為本發明第三實施例之縱向球差圖、像散場曲像差圖及畸變像差圖; 〔圖4A〕為本發明第四實施例之光學攝像透鏡組示意圖; 〔圖4B〕由左至右依序為本發明第四實施例之縱向球差圖、像散場曲像差圖及畸變像差圖; 〔圖5A〕為本發明第五實施例之光學攝像透鏡組示意圖; 〔圖5B〕由左至右依序為本發明第五實施例之縱向球差圖、像散場曲像差圖及畸變像差圖; 〔圖6A〕為本發明第六實施例之光學攝像透鏡組示意圖; 〔圖6B〕由左至右依序為本發明第六實施例之縱向球差圖、像散場曲像差圖及畸變像差圖; 〔圖7A〕為本發明第七實施例之光學攝像透鏡組示意圖; 〔圖7B〕由左至右依序為本發明第七實施例之縱向球差圖、像散場曲像差圖及畸變像差圖;及 〔圖8〕為本發明第九實施例之電子裝置之示意圖。 [Fig. 1A] is a schematic diagram of the optical imaging lens group of the first embodiment of the present invention; [Fig. 1B] From left to right are the longitudinal spherical aberration diagram, astigmatism field curvature aberration diagram and distortion aberration diagram of the first embodiment of the present invention; [Fig. 2A] is a schematic diagram of the optical imaging lens group of the second embodiment of the present invention; [Fig. 2B] From left to right are the longitudinal spherical aberration diagram, astigmatism field curvature aberration diagram and distortion aberration diagram of the second embodiment of the present invention; [Fig. 3A] is a schematic diagram of the optical imaging lens group of the third embodiment of the present invention; [Fig. 3B] From left to right are the longitudinal spherical aberration diagram, astigmatism field curvature aberration diagram and distortion aberration diagram of the third embodiment of the present invention; [Fig. 4A] is a schematic diagram of the optical imaging lens group of the fourth embodiment of the present invention; [Fig. 4B] From left to right are the longitudinal spherical aberration diagram, astigmatism field curvature aberration diagram and distortion aberration diagram of the fourth embodiment of the present invention; [Fig. 5A] is a schematic diagram of the optical imaging lens group of the fifth embodiment of the present invention; [Fig. 5B] From left to right are the longitudinal spherical aberration diagram, astigmatism field curvature aberration diagram and distortion aberration diagram of the fifth embodiment of the present invention; [Fig. 6A] is a schematic diagram of the optical imaging lens group of the sixth embodiment of the present invention; [Fig. 6B] From left to right are the longitudinal spherical aberration diagram, astigmatism field curvature aberration diagram and distortion aberration diagram of the sixth embodiment of the present invention; [FIG. 7A] is a schematic diagram of the optical imaging lens group of the seventh embodiment of the present invention; [Fig. 7B] From left to right are the longitudinal spherical aberration diagram, astigmatic field curvature aberration diagram and distortion aberration diagram of the seventh embodiment of the present invention; and [FIG. 8] is a schematic diagram of an electronic device according to a ninth embodiment of the present invention.
10:光學攝像透鏡組 10: Optical camera lens group
11:第一透鏡 11: First lens
12:第二透鏡 12: Second lens
13:第三透鏡 13: Third lens
14:第四透鏡 14: Fourth lens
15:第五透鏡 15: fifth lens
16:第六透鏡 16: sixth lens
17:第七透鏡 17: seventh lens
18:濾光元件 18: Filter element
19:成像面 19: Imaging surface
11a:第一透鏡之物側面 11a: The side of the object of the first lens
11b:第一透鏡之像側面 11b: The image side of the first lens
12a:第二透鏡之物側面 12a: The side of the second lens
12b:第二透鏡之像側面 12b: The image side of the second lens
13a:第三透鏡之物側面 13a: The side of the third lens
13b:第三透鏡之像側面 13b: The image side of the third lens
14a:第四透鏡之物側面 14a: The side of the fourth lens
14b:第四透鏡之像側面 14b: The image side of the fourth lens
15a:第五透鏡之物側面 15a: The side of the fifth lens
15b:第五透鏡之像側面 15b: The image side of the fifth lens
16a:第六透鏡之物側面 16a: The side of the sixth lens
16b:第六透鏡之像側面 16b: The image side of the sixth lens
17a:第七透鏡之物側面 17a: The side of the object of the seventh lens
17b:第七透鏡之像側面 17b: The image side of the seventh lens
18a、18b:濾光元件之二表面 18a, 18b: two surfaces of the filter element
100:影像感測元件 100: Image sensing element
I:光軸 I: optical axis
ST:光圈 ST: Aperture
Claims (16)
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Citations (5)
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US9874718B2 (en) * | 2014-01-21 | 2018-01-23 | Hanwha Techwin Co., Ltd. | Wide angle lens system |
US10185126B2 (en) * | 2016-12-05 | 2019-01-22 | Samsung Electro-Mechanics Co., Ltd. | Optical imaging system |
JP2019066645A (en) * | 2017-09-29 | 2019-04-25 | 日本電産サンキョー株式会社 | Wide-angle lens |
TWI690742B (en) * | 2019-03-18 | 2020-04-11 | 大陸商信泰光學(深圳)有限公司 | Lens assembly |
TWI720901B (en) * | 2020-01-17 | 2021-03-01 | 大陸商東莞市宇瞳光學科技股份有限公司 | Optical lens |
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US9874718B2 (en) * | 2014-01-21 | 2018-01-23 | Hanwha Techwin Co., Ltd. | Wide angle lens system |
US10185126B2 (en) * | 2016-12-05 | 2019-01-22 | Samsung Electro-Mechanics Co., Ltd. | Optical imaging system |
JP2019066645A (en) * | 2017-09-29 | 2019-04-25 | 日本電産サンキョー株式会社 | Wide-angle lens |
TWI690742B (en) * | 2019-03-18 | 2020-04-11 | 大陸商信泰光學(深圳)有限公司 | Lens assembly |
TWI720901B (en) * | 2020-01-17 | 2021-03-01 | 大陸商東莞市宇瞳光學科技股份有限公司 | Optical lens |
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