Panoramic wide-angle high-resolution optical system and camera module using the same

Abstract

The application provides a panoramic wide-angle high-resolution optical system and an applied camera module, which are mainly composed of nine lenses and one reflecting element, have the advantages of panorama, wide angle and high resolution through reasonable lens shape matching, and have good application prospects in the field of sports cameras.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optical imaging, in particular to a panoramic wide-angle high-resolution optical system and a camera module using the same. BACKGROUND

[0002] With the rapid development of camera lenses in the field of action cameras, people have more diversified requirements for the imaging effect of lenses. Not only do they need a wide field of view, but they also need high resolution. To meet customer requirements, the lens needs to have a wide field of view, and to achieve high resolution, the field of view of the optical system needs to be increased, which will have greater competitiveness in the market. SUMMARY

[0003] The present application aims to provide a high-pixel panoramic optical system applied in the field of action cameras, which has the advantages of panoramic, wide-angle, and high-resolution. At the same time, the wide-angle can increase the amount of light entering the optical system and improve the imaging quality.

[0004] The technical scheme adopted is as follows:

[0005] A panoramic wide-angle high-resolution optical system, sequentially comprising a first lens, a second lens, a third lens, a fourth lens, a reflecting element, a sixth lens, a seventh lens, an eighth lens, a ninth lens, and a tenth lens along the optical axis from the object plane to the image plane;

[0006] The first lens has negative focal power, and its object side surface is convex, and its image side surface is concave;

[0007] The second lens has negative focal power, and its image side surface is concave;

[0008] The third lens has negative focal power, and its object side surface is concave, and its image side surface is concave;

[0009] The fourth lens has positive focal power, and its image side surface is convex;

[0010] The reflecting element is used to reflect the light beam passing through the fourth lens to the sixth lens;

[0011] The sixth lens has positive focal power, and its object side surface is convex, and its image side surface is convex;

[0012] The seventh lens has positive focal power, and its object side surface is convex, and its image side surface is concave;

[0013] The eighth lens has negative focal power, and its object side surface is convex, and its image side surface is concave;

[0014] The ninth lens has positive focal power, and its object side surface is convex, and its image side surface is concave;

[0015] The tenth lens has positive refractive power, its object-side surface is convex, and its image-side surface is concave;

[0016] The eighth lens and the ninth lens are cemented together to form a combined lens.

[0017] For the panoramic wide-angle high-resolution optical system described above, each lens of the optical system meets the following conditions:

[0018] -20.0 <f1<-5.0;

[0019] -10.0 <f2<-2.0;

[0020] -60.0 <f3<-3.0;

[0021] 15.0 <f4<30.0;

[0022] 1.0 <f6<10.0;

[0023] 20.0 <f7<255.0;

[0024] -8.5 <f8<-1.5;

[0025] 2.0 <f9<8.0;

[0026] -125.0 <f89<-5.0;

[0027] -50.0 <f10<470.0;

[0028] Among them, f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, f6 is the focal length of the sixth lens, f7 is the focal length of the seventh lens, f8 is the focal length of the eighth lens, f9 is the focal length of the ninth lens, f89 is the combined focal length of the eighth and ninth lenses, and f10 is the focal length of the tenth lens.

[0029] For the panoramic wide-angle high-resolution optical system described above, each lens of the optical system meets the following conditions:

[0030] -10.0 <f1 / f<-3.0;

[0031] -6.0 <f2 / f<-1.5;

[0032] -32.0 <f3 / f<10.0;

[0033] 10.0 <f4 / f<20.0;

[0034] 1.0 <f6 / f<5.0;

[0035] 10.0 <f7 / f<150.0;

[0036] -5.0 <f8 / f<0.0;

[0037] 0.0 <f9 / f<5.0;

[0038] -80.0 <f89 / f<0.0;

[0039] 20.0 <f10 / f<300.0;

[0040] Wherein, f is the focal length of the entire optical system, f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, f6 is the focal length of the sixth lens, f7 is the focal length of the seventh lens, f8 is the focal length of the eighth lens, f9 is the focal length of the ninth lens, f89 is the combined focal length of the eighth and ninth lenses, and f10 is the focal length of the tenth lens.

[0041] The panoramic wide-angle high-resolution optical system as described above satisfies the following relationship: 0.10 <f / TTL*ImagH<0.50;

[0042] Where f is the effective focal length of the optical imaging system, TTL is the on-axis distance from the object side of the first lens to the imaging surface, and ImagH is half the diagonal length of the effective pixel area on the imaging surface.

[0043] In the panoramic wide-angle high-resolution optical system described above, the material refractive index Nd1 and the material Abbe constant Vd1 of the first lens satisfy: 1.63 <Nd1<2.00,30<Vd1<60。

[0044] In the panoramic wide-angle high-resolution optical system described above, the material refractive index Nd2 and the material Abbe number Vd2 of the second lens satisfy: 1.50 <Nd2<2.00,15<Vd2<67。

[0045] In the panoramic wide-angle high-resolution optical system described above, the material refractive index Nd3 and the material Abbe number Vd3 of the third lens satisfy: 1.52 <Nd3<1.75,15<Vd3<35。

[0046] In the panoramic wide-angle high-resolution optical system described above, the material refractive index Nd4 and the material Abbe number Vd4 of the fourth lens satisfy: 1.50 <Nd4<2.00,15<Vd4<67。

[0047] In the panoramic wide-angle high-resolution optical system described above, the material refractive index Nd6 and the material Abbe number Vd6 of the sixth lens satisfy: 1.50 <Nd6<2.00,15<Vd6<67。

[0048] In the panoramic wide-angle high-resolution optical system described above, the material refractive index Nd7 and the material Abbe number Vd7 of the seventh lens satisfy: 1.52 <Nd7<1.75,15<Vd7<35。

[0049] In the panoramic wide-angle high-resolution optical system described above, the material refractive index Nd8 and the material Abbe number Vd8 of the eighth lens satisfy: 1.50 <Nd8<2.00,15<Vd8<67。

[0050] In the panoramic wide-angle high-resolution optical system described above, the material refractive index Nd9 and the material Abbe number Vd9 of the ninth lens satisfy: 1.50 <Nd9<2.00,15<Vd9<67。

[0051] In the panoramic wide-angle high-resolution optical system described above, the material refractive index Nd10 and the material Abbe number Vd10 of the tenth lens satisfy: 1.52 <Nd10<1.75,15<Vd10<35。

[0052] The panoramic wide-angle high-resolution optical system as described above has a full field of view angle of 180°-220°.

[0053] In the panoramic wide-angle high-resolution optical system described above, the first lens, the second lens, the fourth lens, the eighth lens, and the ninth lens are spherical lenses, the third lens, the seventh lens, and the tenth lens are plastic aspherical lenses, and the sixth lens is a glass aspherical lens.

[0054] On the other hand, an embodiment of the present application further provides a camera module, which includes at least an optical lens, in which the above-mentioned panoramic wide-angle high-resolution optical system is installed.

[0055] Compared with the prior art, the present invention has the following advantages:

[0056] The present invention provides a panoramic, wide-angle, high-resolution optical system and a camera module used therein. The system is mainly composed of nine lenses and one reflective element. Through the reasonable combination of lens shapes, it has the advantages of panoramic view, wide angle, and high resolution. At the same time, the wide angle can increase the amount of light entering the optical system and improve the imaging quality. It has good application prospects in the field of sports cameras. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments.

[0058] Figure 1 Schematic diagram of the structure of the optical system or camera module of Example 1 of the present application;

[0059] Figure 2is the distortion curve of the optical system or camera module of Example 1 of the present application;

[0060] Figure 3 2 is a schematic structural diagram of an optical system or camera module according to embodiment 2 of the present application;

[0061] Figure 4 is the distortion curve of the optical system or camera module of Example 2 of the present application;

[0062] Figure 5 Schematic diagram of the structure of the optical system or camera module according to Example 3 of the present application;

[0063] Figure 6 is the distortion curve of the optical system or camera module of Example 3 of the present application;

[0064] Figure 7 Schematic diagram of the structure of the optical system or camera module according to Example 4 of the present application;

[0065] Figure 8 It is the distortion curve of the optical system or camera module of Example 4 of the present application. DETAILED DESCRIPTION

[0066] The present invention provides a panoramic wide-angle, high-resolution optical system, which includes, in order from the object plane to the image plane along the optical axis, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, a tenth lens E10, a filter E11, and an imaging surface S23. The first lens, the second lens, the fourth lens, the eighth lens, and the ninth lens are spherical lenses, the third lens, the seventh lens, and the tenth lens are plastic aspherical lenses, the sixth lens is a glass aspherical lens, and the eighth lens and the ninth lens are bonded together to form a composite lens.

[0067] The first lens has negative optical power, its object side surface is convex, and its image side surface is concave;

[0068] The second lens has negative optical power and its image side surface is concave;

[0069] The third lens has negative optical power, its object side surface is concave, and its image side surface is concave;

[0070] The fourth lens has positive refractive power and its image side surface is convex;

[0071] The reflecting element is used to reflect the light beam passing through the fourth lens to the sixth lens;

[0072] The sixth lens has positive refractive power, its object-side surface is convex, and its image-side surface is convex;

[0073] The seventh lens has positive refractive power, the object side surface is convex, and the image side surface is concave;

[0074] The eighth lens has negative refractive power, the object side surface is convex, and the image side surface is concave;

[0075] The ninth lens has positive refractive power, the object side surface is convex, and the image side surface is concave;

[0076] The tenth lens has positive refractive power, the object side surface is convex, and the image side surface is concave.

[0077] The panoramic wide-angle high-resolution optical system of the embodiment mainly comprises nine lenses and one reflecting element, has the advantages of panorama, wide angle, and high resolution through reasonable lens shape matching, and simultaneously, the wide angle can increase the light amount of the optical system and the imaging quality, and has good application prospect in the field of action cameras.

[0078] Further, as a preferred embodiment of the present application but not limited, each lens of the optical system satisfies the following conditions: -10.0 < f1 / f < -3.0; -6.0 < f2 / f < -1.5; -32.0 < f3 / f < 10.0; 10.0 < f4 / f < 20.0; 1.0 < f6 / f < 5.0; 10.0 < f7 / f < 150.0; -5.0 < f8 / f < 0.0; 0.0 < f9 / f < 5.0; -80.0 < f89 / f < 0.0; 20.0 < f10 / f < 300.0; wherein f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, f6 is the focal length of the sixth lens, f7 is the focal length of the seventh lens, f8 is the focal length of the eighth lens, f9 is the focal length of the ninth lens, f89 is the combined focal length of the eighth lens and the ninth lens, and f10 is the focal length of the tenth lens; through reasonable control of the effective focal length of each lens of the optical system, the advantages of panorama, wide angle, and high resolution are achieved, and simultaneously, the wide angle can increase the light amount of the optical system and the imaging quality.

[0079] Furthermore, as a preferred embodiment of the present invention but not limiting, each lens of the optical system satisfies the following conditions: -10.0 <f1 / f<-3.0;-6.0<f2 / f<-1.5;-32.0<f3 / f<10.0;10.0<f4 / f<20.0;1.0<f6 / f<5.0;10.0<f7 / f<150.0;-5.0<f8 / f<0.0;0.0<f9 / f<5.0;-80.0<f89 / f<0.0;20.0<f10 / f<300.0;其中,f为整个光学系统的焦距,f1为第一透镜的焦距,f2为第二透镜的焦距,f3为第三透镜的焦距,f4为第四透镜的焦距, f6为第六透镜的焦距,f7为第七透镜的焦距,f8为第八透镜的焦距,f9为第九透镜的焦距,f89为第八透镜、第九透镜的组合焦距,f10为第十透镜的焦距。。通过各镜片有效有焦距与光学系统有效焦距配比的限定,使光学系统获得合理的光线偏折角度,有效降低部品公差敏感度,并改善系统像差,实现更高的成像质量。

[0080] Furthermore, as a preferred embodiment of the present invention but not limiting, the optical system satisfies the following relationship: 0.10 <f / TTL*ImagH<0.50;其中,f为光学成像系统的有效焦距,TTL为第一透镜物侧面至成像面的轴上距离, ImagH为成像面上有效像素区域对角线长的一半。该关系式反映了光学镜头在视场角和轻薄特性上的约束情况,当满足上述关系式时,能够在满足光学镜头呈广角的基础上,满足市场对光学镜头对小头部和轻薄性的需求。当超过关系式上限,在保障光学镜头的视场角为广角的基础上,f / TTL*ImagH进一步缩小,会过度压缩光学镜头的轻薄性,不利于光学镜头的性能的提升。当低于关系式下限时,光学镜头的轻薄性不足,不利于光学镜头的小型化设计。

[0081] Furthermore, as a preferred embodiment of the present invention but not limiting, the material refractive index Nd1 and the material Abbe constant Vd1 of the first lens satisfy: 1.63 <Nd1<2.00,30<Vd1<60;第二透镜的材料折射率Nd2、材料阿贝数Vd2满足:1.50<Nd2<2.00,15<Vd2<67;第三透镜的材料折射率Nd3、材料阿贝数Vd3满足:1.52<Nd3<1.75,15<Vd3<35;第四透镜的材料折射率Nd4、材料阿贝数Vd4满足:1.50<Nd4<2.00,15<Vd4<67;第六透镜的材料折射率Nd6、材料阿贝数Vd6满足:1.50<Nd6<2.00,15<Vd6<67;第七透镜的材料折射率Nd7、材料阿贝数Vd7满足:1.52<Nd7<1.75,15<Vd7<35;第八透镜的材料折射率Nd8、材料阿贝数Vd8满足:1.50<Nd8<2.00,15<Vd8<67;第九透镜的材料折射率Nd9、材料阿贝数Vd9满足:1.50<Nd9<2.00,15<Vd9<67;第十透镜的材料折射率Nd10、材料阿贝数Vd10满足:1.52<Nd10<1.75,15<Vd10<35。通过限定各透镜的折射率与阿贝数之间的关系,有益于减小像差,提升了高像素光学系统的像质。

[0082] Furthermore, as a preferred embodiment of the present invention but not limiting, the full field of view of the optical system is between 180° and 220°. The panoramic, wide-angle, and high-resolution optical system configured in this application has the advantages of panoramic view, wide angle, and high resolution.

[0083] Example 1

[0084] The following reference Figures 1 to 2 The optical imaging lens according to Example 1 of the present application is described. Figure 1 A schematic structural diagram of an optical imaging lens according to Example 1 of the present application is shown.

[0085] like Figure 1 As shown, the optical imaging lens according to an exemplary embodiment of the present application includes, in order from the object side to the image side along the optical axis: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, a tenth lens E10, a filter E11 and an imaging surface S23.

[0086] The first lens E1 has negative optical power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has negative optical power, with its image-side surface S4 being concave. The third lens E3 has negative optical power, with its object-side surface S5 being concave and its image-side surface S6 being concave. The fourth lens E4 has positive optical power, with its image-side surface S8 being convex. The fifth lens E5 is a reflective element. The sixth lens E6 has positive optical power, with its object-side surface S11 being convex and its image-side surface S12 being convex. The seventh lens E7 has positive optical power, with its object-side surface S13 being convex and its image-side surface S14 being concave. The eighth lens E8 has negative optical power, with its object-side surface S16 being convex and its image-side surface S17 being concave. The ninth lens E9 has positive optical power, with its object-side surface S17 being convex and its image-side surface S18 being concave. The tenth lens element E10 has positive refractive power, with a convex object-side surface S19 and a concave image-side surface S20. The filter E11 has an object-side surface S21 and an image-side surface S22. Light from an object sequentially passes through surfaces S1 through S22 and is ultimately imaged on imaging surface S23.

[0087] Table 1 shows the surface type, curvature radius, thickness, and material of each lens of the optical imaging lens of Example 1, wherein the units of curvature radius and thickness are both millimeters (mm).

[0088] Table 1

[0089]

[0090] In Table 2, any one of the object side and image side of the third lens E3, the sixth lens E6, the seventh lens E7, and the tenth lens E10 is aspherical. The surface shape of each aspherical lens can be defined by, but not limited to, the following aspherical surface formula:

[0091]

[0092] Where x is the distance from the corresponding point on the aspheric surface to the plane tangent to the vertex of the surface, h is the distance from the corresponding point on the aspheric surface to the optical axis, c is the curvature of the aspheric vertex, k is the conic coefficient, and Ai is the coefficient corresponding to the i-th higher-order term in the aspheric surface shape formula. Table 2 shows the conic coefficients and higher-order coefficients A4, A6, A8, A10, A12, A14, and A16 for various aspheric surfaces that can be used in the first embodiment.

[0093] Table 2

[0094]

[0095] Figure 2 The distortion curve of the optical imaging lens of Example 1 is shown. Astigmatism represents meridional and sagittal image curvature; distortion represents the magnitude of distortion at different image heights. The optical imaging lens of Example 1 can achieve excellent imaging quality.

[0096] Example 2

[0097] The following reference Figures 3 and 4 The optical imaging lens according to Example 2 of the present application is described. Figure 3 A schematic structural diagram of an optical imaging lens according to Example 2 of the present application is shown.

[0098] like Figure 3 As shown, the optical imaging lens according to an exemplary embodiment of the present application includes, in order from the object side to the image side along the optical axis: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, a tenth lens E10, a filter E11 and an imaging surface S23.

[0099] The first lens E1 has negative optical power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has negative optical power, with its image-side surface S4 being concave. The third lens E3 has negative optical power, with its object-side surface S5 being concave and its image-side surface S6 being concave. The fourth lens E4 has positive optical power, with its image-side surface S8 being convex. The fifth lens E5 is a reflective element. The sixth lens E6 has positive optical power, with its object-side surface S11 being convex and its image-side surface S12 being convex. The seventh lens E7 has positive optical power, with its object-side surface S13 being convex and its image-side surface S14 being concave. The eighth lens E8 has negative optical power, with its object-side surface S16 being convex and its image-side surface S17 being concave. The ninth lens E9 has positive optical power, with its object-side surface S17 being convex and its image-side surface S18 being concave. The tenth lens element E10 has positive refractive power, with a convex object-side surface S19 and a concave image-side surface S20. The filter E11 has an object-side surface S21 and an image-side surface S22. Light from an object sequentially passes through surfaces S1 through S22 and is ultimately imaged on imaging surface S23.

[0100] Table 3 shows the surface type, curvature radius, thickness, and material of each lens of the optical imaging lens system of Example 2, where the units of curvature radius and thickness are both millimeters (mm).

[0101] Table 3

[0102]

[0103] In Table 4, any one of the object side and image side of the third lens E3, the sixth lens E6, the seventh lens E7, and the tenth lens E10 is aspherical. The surface shape of each aspherical lens can be defined by, but not limited to, the following aspherical surface formula:

[0104]

[0105] Where x is the distance from the corresponding point on the aspheric surface to the plane tangent to the vertex of the surface, h is the distance from the corresponding point on the aspheric surface to the optical axis, c is the curvature of the aspheric vertex, k is the conic coefficient, and Ai is the coefficient corresponding to the i-th higher-order term in the aspheric surface shape formula. Table 4 shows the conic coefficients and higher-order coefficients A4, A6, A8, A10, A12, A14, and A16 for various aspheric surfaces that can be used in the first embodiment.

[0106] Table 4

[0107]

[0108] Figure 4 The distortion curve of the optical imaging lens of Example 2 is shown. Astigmatism represents meridional and sagittal image curvature; distortion represents the magnitude of distortion at different image heights. The optical imaging lens of Example 2 can achieve excellent imaging quality.

[0109] Example 3:

[0110] The following reference Figures 5 and 6 The optical imaging lens according to Example 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging lens according to Example 3 of the present application is shown.

[0111] like Figure 5 As shown, the optical imaging lens according to an exemplary embodiment of the present application includes, in order from the object side to the image side along the optical axis: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, a tenth lens E10, a filter E11 and an imaging surface S23.

[0112] The first lens E1 has negative optical power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has negative optical power, with its image-side surface S4 being concave. The third lens E3 has negative optical power, with its object-side surface S5 being concave and its image-side surface S6 being concave. The fourth lens E4 has positive optical power, with its image-side surface S8 being convex. The fifth lens E5 is a reflective element. The sixth lens E6 has positive optical power, with its object-side surface S11 being convex and its image-side surface S12 being convex. The seventh lens E7 has positive optical power, with its object-side surface S13 being convex and its image-side surface S14 being concave. The eighth lens E8 has negative optical power, with its object-side surface S16 being convex and its image-side surface S17 being concave. The ninth lens E9 has positive optical power, with its object-side surface S17 being convex and its image-side surface S18 being concave. The tenth lens element E10 has positive refractive power, with a convex object-side surface S19 and a concave image-side surface S20. The filter E11 has an object-side surface S21 and an image-side surface S22. Light from an object sequentially passes through surfaces S1 through S22 and is ultimately imaged on imaging surface S23.

[0113] Table 5 shows the surface type, curvature radius, thickness, and material of each lens of the optical imaging lens system of Example 3, where the units of curvature radius and thickness are both millimeters (mm).

[0114] Table 5

[0115]

[0116] In Table 6, any one of the object side and image side of the third lens E3, the sixth lens E6, the seventh lens E7, and the tenth lens E10 is aspherical. The surface shape of each aspherical lens can be defined by, but not limited to, the following aspherical surface formula:

[0117]

[0118] Where x is the distance from the corresponding point on the aspheric surface to the plane tangent to the vertex, h is the distance from the corresponding point on the aspheric surface to the optical axis, c is the curvature of the aspheric vertex, k is the conic coefficient, and Ai is the coefficient corresponding to the i-th higher-order term in the aspheric surface shape formula. Table 6 shows the conic coefficients and higher-order coefficients A4, A6, A8, A10, A12, A14, and A16 for various aspheric surfaces that can be used in the first embodiment.

[0119] Table 6

[0120]

[0121] Figure 6 The distortion curve of the optical imaging lens of Example 3 is shown. Astigmatism represents meridional and sagittal image curvature; distortion represents the magnitude of distortion at different image heights. The optical imaging lens of Example 3 can achieve excellent imaging quality.

[0122] Example 4:

[0123] The following reference Figures 7 and 8 An optical imaging lens according to Example 4 of the present application is described. Figure 7 A schematic structural diagram of an optical imaging lens according to Example 4 of the present application is shown.

[0124] like Figure 7 As shown, the optical imaging lens according to an exemplary embodiment of the present application includes, in order from the object side to the image side along the optical axis: a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an eighth lens E8, a ninth lens E9, a tenth lens E10, a filter E11 and an imaging surface S23.

[0125] The first lens E1 has negative refractive power, the object side surface S1 is convex, and the image side surface S2 is concave. The second lens E2 has negative refractive power, and the image side surface S4 is concave. The third lens E3 has negative refractive power, the object side surface S5 is concave, and the image side surface S6 is concave. The fourth lens E4 has positive refractive power, and the image side surface S8 is convex. The fifth lens E5 is a reflective element. The sixth lens E6 has positive refractive power, the object side surface S11 is convex, and the image side surface S12 is convex. The seventh lens E7 has positive refractive power, the object side surface S13 is convex, and the image side surface S14 is concave. The eighth lens E8 has negative refractive power, the object side surface S16 is convex, and the image side surface S17 is concave. The ninth lens E9 has positive refractive power, the object side surface S17 is convex, and the image side surface S18 is concave. The tenth lens E10 has positive refractive power, the object side surface S19 is convex, and the image side surface S20 is concave. The filter E11 has an object side surface S21 and an image side surface S22. Light from an object passes through the surfaces S1 to S22 in sequence and is finally imaged on an imaging surface S23.

[0126] Table 7 shows the surface type, the radius of curvature, the thickness and the material of each lens of the optical imaging lens of Example 4, wherein the units of the radius of curvature and the thickness are millimeter (mm).

[0127] Table 7

[0128]

[0129] In Table 8, the object side surface and the image side surface of each of the third lens E3, the sixth lens E6, the seventh lens E7 and the tenth lens E10 are aspherical surfaces, and the surface type of each aspherical surface can be defined by, but not limited to, the following aspherical surface formula:

[0130]

[0131] wherein x is the distance from a corresponding point on the aspherical surface to a plane tangent to the vertex of the surface, h is the distance from the corresponding point on the aspherical surface to the optical axis, c is the curvature of the vertex of the aspherical surface, k is the conic coefficient, and Ai is the coefficient corresponding to the ith high order term in the aspherical surface formula. Table 6 shows the conic coefficient and the high order term coefficients A4, A6, A8, A10, A12, A14 and A16 of each aspherical surface that can be used in the first embodiment.

[0132] Table 8

[0133]

[0134] Figure 8 The distortion curve of the optical imaging lens of Example 4 is shown. Astigmatism represents the meridional image curvature and the sagittal image curvature, and distortion represents the distortion size value corresponding to different image heights. The optical imaging lens of Example 4 can achieve good imaging quality.

[0135] A camera module includes at least an optical lens, in which a panoramic, wide-angle, and high-resolution optical system is installed. The optical lens is mainly composed of 9 lenses and 1 reflective element. Through the reasonable combination of lens shapes, it has the advantages of panoramic view, wide angle, and high resolution. At the same time, the wide angle can increase the amount of light entering the optical system and improve the imaging quality. It has good application prospects in the field of sports cameras.

[0136] The above descriptions are provided in conjunction with specific content to provide one or more embodiments, and the specific implementation of the present invention is not limited to these descriptions. Any similarity or similarity with the methods, structures, etc. of the present invention, or any technical deduction or substitution based on the concept of the present invention, shall be considered within the scope of protection of the present invention.

Claims

1. A panoramic wide-angle high-resolution optical system, characterized by: Along the optical axis, from the object plane to the image plane, it is composed of a first lens, a second lens, a third lens, a fourth lens, a reflective element, a sixth lens, a seventh lens, an eighth lens, a ninth lens, and a tenth lens; The first lens has negative optical power, its object side surface is convex, and its image side surface is concave; The second lens has negative optical power and its image side surface is concave; The third lens has negative optical power, its object side surface is concave, and its image side surface is concave; The fourth lens has positive refractive power and its image side surface is convex; The reflective element is used to reflect the light beam passing through the fourth lens to the sixth lens; The sixth lens has positive refractive power, its object-side surface is convex, and its image-side surface is convex; The seventh lens has positive refractive power, its object-side surface is convex, and its image-side surface is concave; The eighth lens has negative optical power, its object-side surface is convex, and its image-side surface is concave; The ninth lens has positive refractive power, its object-side surface is convex, and its image-side surface is concave; The tenth lens has positive refractive power, its object-side surface is convex, and its image-side surface is concave; The eighth lens and the ninth lens are bonded together to form a combined lens; The optical system satisfies the following relationship: 0.10 mm < f / TTL*ImgH < 0.50 mm; Wherein, f is the effective focal length of the optical imaging system, TTL is the on-axis distance from the object side of the first lens to the imaging surface, and ImgH is half the diagonal length of the effective pixel area on the imaging surface; Each lens of the optical system meets the following conditions: -20.0mm <f1<-5.0mm; -10.0mm <f2<-2.0mm; -60.0mm <f3<-3.0mm; 15.0mm <f4<30.0mm; 1.0mm <f6<10.0mm; 20.0mm <f7<255.0mm; -8.5mm <f8<-1.5mm; 2.0mm <f9<8.0mm; -125.0mm <f89<-5.0mm; -50.0mm <f10<470.0mm; Among them, f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, f6 is the focal length of the sixth lens, f7 is the focal length of the seventh lens, f8 is the focal length of the eighth lens, f9 is the focal length of the ninth lens, f89 is the combined focal length of the eighth and ninth lenses, and f10 is the focal length of the tenth lens.

2. The panoramic wide-angle high-resolution optical system according to claim 1, characterized in that: Each lens of the optical system meets the following conditions: -10.0 <f1 / f<-3.0; -6.0 <f2 / f<-1.5; -32.0 <f3 / f<10.0; 10.0 <f4 / f<20.0; 1.0 <f6 / f<5.0; 10.0 <f7 / f<150.0; -5.0 <f8 / f<0.0; 0.0 <f9 / f<5.0; -80.0 <f89 / f<0.0; 20.0 <f10 / f<300.0; Where f is the focal length of the entire optical system, f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, f6 is the focal length of the sixth lens, f7 is the focal length of the seventh lens, f8 is the focal length of the eighth lens, f9 is the focal length of the ninth lens, f89 is the combined focal length of the eighth and ninth lenses, and f10 is the focal length of the tenth lens.

3. The panoramic wide-angle high-resolution optical system according to any one of claims 1 to 2, characterized in that: The refractive index Nd1 and Abbe number Vd1 of the material of the first lens satisfy: 1.63 < Nd1 < 2.00, 30 < Vd1 < 60; and / or The refractive index Nd2 and Abbe number Vd2 of the material of the second lens satisfy: 1.50 < Nd2 < 2.00, 15 < Vd2 < 67; and / or The refractive index Nd3 and Abbe number Vd3 of the material of the third lens satisfy: 1.52 < Nd3 < 1.75, 15 < Vd3 < 35.

4. The panoramic wide-angle high-resolution optical system according to any one of claims 1 to 2, characterized in that: The refractive index Nd4 and Abbe number Vd4 of the material of the fourth lens satisfy: 1.50 < Nd4 < 2.00, 15 < Vd4 < 67; and / or The refractive index Nd6 and Abbe number Vd6 of the material of the sixth lens satisfy: 1.50 < Nd6 < 2.00, 15 < Vd6 < 67; and / or The refractive index Nd7 and Abbe number Vd7 of the material of the seventh lens satisfy: 1.52 < Nd7 < 1.75, 15 < Vd7 < 35.

5. The panoramic wide-angle high-resolution optical system according to any one of claims 1-2, characterized in that: The refractive index Nd8 and Abbe number Vd8 of the material of the eighth lens satisfy: 1.50 < Nd8 < 2.00, 15 < Vd8 < 67; and / or The refractive index Nd9 and Abbe number Vd9 of the material of the ninth lens satisfy: 1.50 < Nd9 < 2.00, 15 < Vd9 < 67; and / or The refractive index Nd10 and Abbe number Vd10 of the material of the tenth lens satisfy: 1.52 < Nd10 < 1.75, 15 < Vd10 < 35.

6. The panoramic wide-angle high-resolution optical system according to any one of claims 1-2, characterized in that: The full field angle of the optical system is between 180° - 220°.

7. The panoramic wide-angle high-resolution optical system according to any one of claims 1-2, characterized in that:

8. A camera module, comprising at least an optical lens, characterized in that: The first lens, the second lens, the fourth lens, the eighth lens, and the ninth lens are spherical lenses, the third lens, the seventh lens, and the tenth lens are plastic aspherical lenses, and the sixth lens is a glass aspherical lens. The panoramic wide-angle high-resolution optical system according to any one of claims 1-7 is installed in the optical lens.

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