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

Abstract

The invention provides a panoramic wide-angle high-resolution optical system and a camera module applying the same, the panoramic wide-angle high-resolution optical system is mainly composed of nine lenses and one reflecting element, through reasonable lens shape matching, the panoramic wide-angle high-resolution optical system has the advantages of panorama, wide angle and high resolution, meanwhile, the light incoming amount of the optical system can be increased by the wide angle, the imaging quality is higher, and the image quality is improved. The method has a good application prospect in the field of motion cameras.

Description

Technical Field

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

[0002] With the rapid development of camera lenses in the field of sports cameras, people's requirements for lens imaging effects have become more diversified, requiring not only a wide field of view but also high clarity. To meet customer requirements, the lens needs to have a wide field of view, and to achieve high resolution of the lens, the field of view of the optical system needs to be increased, which will have greater competitiveness in the market. Summary of the invention

[0003] The present application aims to provide a high-pixel panoramic optical system for use in the field of sports cameras, which 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 provide higher imaging quality.

[0004] The technical solutions adopted are: A panoramic wide-angle high-resolution optical system, which 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 in sequence from an object plane to an image plane along an optical axis; 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.

[0005] For the panoramic wide-angle high-resolution optical system as described above, each lens of the optical system satisfies the following conditions: -20.0 <f1<-5.0; -10.0 <f2<-2.0; -60.0 <f3<-3.0; 15.0 <f4<30.0; 1.0 <f6<10.0; 20.0 <f7<255.0; -8.5 <f8<-1.5; 2.0 <f9<8.0; -125.0 <f89<-5.0; -50.0 <f10<470.0; 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 lens and the ninth lens, and f10 is the focal length of the tenth lens.

[0006] For the panoramic wide-angle high-resolution optical system as described above, 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; Among them, 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 lens and the ninth lens, and f10 is the focal length of the tenth lens.

[0007] The panoramic wide-angle high-resolution optical system as described above satisfies the following relationship: 0.10 <f / TTL*ImagH<0.50; Wherein, f is the effective focal length of the optical imaging system, TTL is the axial distance from the object side of the first lens to the imaging surface, and ImagH is half of the diagonal length of the effective pixel area on the imaging surface.

[0008] For 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。

[0009] In the above-mentioned panoramic wide-angle high-resolution optical system, the material refractive index Nd2 and the material Abbe number Vd2 of the second lens satisfy: 1.50 <Nd2<2.00,15<Vd2<67。

[0010] For 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。

[0011] In the above-mentioned panoramic wide-angle high-resolution optical system, the material refractive index Nd4 and the material Abbe number Vd4 of the fourth lens satisfy: 1.50 <Nd4<2.00,15<Vd4<67。

[0012] 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。

[0013] 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。

[0014] 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。

[0015] 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。

[0016] For 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。

[0017] As described above, the panoramic wide-angle high-resolution optical system has a full field of view of 180°-220°.

[0018] In the panoramic wide-angle high-resolution optical system as 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.

[0019] On the other hand, an embodiment of the present application further provides a camera module, comprising at least an optical lens, wherein the above-mentioned panoramic wide-angle high-resolution optical system is installed in the optical lens.

[0020] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a panoramic wide-angle high-resolution optical system and a camera module used therein, which is mainly composed of 9 lenses and 1 reflective element. Through reasonable lens shape matching, the system has the advantages of panoramic view, wide angle and high resolution. Meanwhile, the wide angle can increase the amount of light entering the optical system and higher imaging quality, and has good application prospects in the field of sports cameras. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 It is a structural schematic diagram of the optical system or camera module of Example 1 of the present application; Figure 2 is a distortion curve of the optical system or camera module of Example 1 of the present application; Figure 3 It is a structural schematic diagram of an optical system or a camera module according to Embodiment 2 of the present application; Figure 4 is a distortion curve of the optical system or camera module of Example 2 of the present application; Figure 5 It is a structural schematic diagram of an optical system or a camera module according to Embodiment 3 of the present application; Figure 6 is a distortion curve of the optical system or camera module of Example 3 of the present application; Figure 7 It is a structural schematic diagram of an optical system or a camera module according to Embodiment 4 of the present application; Figure 8 It is the distortion curve of the optical system or camera module of Example 4 of the present application. DETAILED DESCRIPTION

[0023] The embodiment of the present application provides a panoramic wide-angle high-resolution optical system, which includes, 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 plane S23, wherein 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 to each other to form a combined 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, an object-side surface thereof is convex, and an image-side surface thereof is concave.

[0024] The panoramic wide-angle high-resolution optical system of the embodiment of the present application 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 higher imaging quality. It has a good application prospect in the field of sports cameras.

[0025] Further, as a preferred embodiment of the present invention rather than a limitation, 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; where 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; by reasonably controlling the effective focal lengths of the lenses of the optical system, it has advantages such as panoramic view, wide angle, and high resolution. At the same time, the wide angle can increase the light input of the optical system and higher imaging quality.

[0026] Further, as a preferred embodiment of the present invention rather than a limitation, 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; 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.. By limiting the ratio of the effective focal lengths of each lens to the effective focal length of the optical system, the optical system obtains a reasonable light deflection angle, effectively reduces the sensitivity of component tolerances, and improves system aberrations, achieving higher imaging quality.

[0027] Further, as a preferred embodiment rather than a limitation of the present invention, the optical system satisfies the following relationship: 0.10 < f / TTL * ImagH < 0.50; where f is the effective focal length of the optical imaging system, TTL is the on-axis distance from the object side surface of the first lens to the imaging surface, and ImagH is half of the diagonal length of the effective pixel region on the imaging surface. This relational expression reflects the constraint conditions of the optical lens in terms of the field of view angle and the thin and light characteristics. When the above relational expression is satisfied, it is possible to meet the market demand for the small head and thin and light characteristics of the optical lens on the basis of ensuring that the optical lens has a wide angle of view. When exceeding the upper limit of the relational expression, on the basis of ensuring that the field of view angle of the optical lens is wide, f / TTL * ImagH is further reduced, which will excessively compress the thin and light characteristics of the optical lens and is not conducive to the improvement of the performance of the optical lens. When below the lower limit of the relational expression, the thin and light characteristics of the optical lens are insufficient, which is not conducive to the miniaturization design of the optical lens.

[0028] Further, as a preferred embodiment rather than a limitation of the present invention, the refractive index Nd1 and the Abbe number Vd1 of the material of the first lens satisfy: 1.63 < Nd1 < 2.00, 30 < Vd1 < 60; the refractive index Nd2 and the Abbe number Vd2 of the material of the second lens satisfy: 1.50 < Nd2 < 2.00, 15 < Vd2 < 67; the refractive index Nd3 and the Abbe number Vd3 of the material of the third lens satisfy: 1.52 < Nd3 < 1.75, 15 < Vd3 < 35; the refractive index Nd4 and the Abbe number Vd4 of the material of the fourth lens satisfy: 1.50 < Nd4 < 2.00, 15 < Vd4 < 67; the refractive index Nd6 and the Abbe number Vd6 of the material of the sixth lens satisfy: 1.50 < Nd6 < 2.00, 15 < Vd6 < 67; the refractive index Nd7 and the Abbe number Vd7 of the material of the seventh lens satisfy: 1.52 < Nd7 < 1.75, 15 < Vd7 < 35; the refractive index Nd8 and the Abbe number Vd8 of the material of the eighth lens satisfy: 1.50 < Nd8 < 2.00, 15 < Vd8 < 67; the refractive index Nd9 and the Abbe number Vd9 of the material of the ninth lens satisfy: 1.50 < Nd9 < 2.00, 15 < Vd9 < 67; the refractive index Nd10 and the Abbe number Vd10 of the material of the tenth lens satisfy: 1.52 < Nd10 < 1.75, 15 < Vd10 < 35. By defining the relationship between the refractive index and the Abbe number of each lens, it is beneficial to reduce aberration and improve the image quality of the high-pixel optical system.

[0029] Further, as a preferred embodiment rather than a limitation of the present invention, the full field of view angle of the optical system is between 180° - 220°. The panoramic wide-angle high-resolution optical system configured in this application has the advantages of panoramic view, wide angle, and high resolution.

[0030] Example 1 The following reference Figure 1 to Figure 2 An optical imaging lens according to Embodiment 1 of the present application is described. Figure 1 A schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application is shown.

[0031] 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.

[0032] The first lens E1 has negative focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative focal power, and its image side surface S4 is concave. The third lens E3 has negative focal power, and its object side surface S5 is concave, and its image side surface S6 is concave. The fourth lens E4 has positive focal power, and its image side surface S8 is convex. The fifth lens E5 is a reflecting element. The sixth lens E6 has positive focal power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has positive focal power, and its object side surface S13 is convex, and its image side surface S14 is concave. The eighth lens E8 has negative focal power, and its object side surface S16 is convex, and its image side surface S17 is concave. The ninth lens E9 has positive focal power, and its object side surface S17 is convex, and its image side surface S18 is concave. The tenth lens E10 has positive refractive power, and its object side surface S19 is convex, and its image side surface S20 is concave. The filter E11 has an object side surface S21 and an image side surface S22. Light from the object passes through each surface S1 to S22 in sequence and is finally imaged on the imaging surface S23.

[0033] 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 the curvature radius and thickness are both millimeters (mm).

[0034] Table 1

[0035] 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 an aspherical surface, and the surface shape of each aspherical lens can be defined by but not limited to the following aspherical surface formula:

[0036] Wherein, 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 vertex of the aspheric surface, k is the cone coefficient, and Ai is the coefficient corresponding to the i-th high-order term in the aspheric surface shape formula. Table 2 shows the cone coefficients and high-order term coefficients A4, A6, A8, A10, A12, A14 and A16 of each aspheric surface that can be used in the first embodiment.

[0037] Table 2

[0038] Figure 2 The distortion curve of the optical imaging lens of Example 1 is shown. Astigmatism represents the meridional image curvature and the sagittal image curvature; distortion represents the distortion magnitude value corresponding to different image heights. The optical imaging lens provided in Example 1 can achieve good imaging quality.

[0039] Embodiment 2 The following reference Figure 3 to Figure 4 An optical imaging lens according to Embodiment 2 of the present application is described. Figure 3 A schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application is shown.

[0040] 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.

[0041] The first lens E1 has negative focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative focal power, and its image side surface S4 is concave. The third lens E3 has negative focal power, and its object side surface S5 is concave, and its image side surface S6 is concave. The fourth lens E4 has positive focal power, and its image side surface S8 is convex. The fifth lens E5 is a reflecting element. The sixth lens E6 has positive focal power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has positive focal power, and its object side surface S13 is convex, and its image side surface S14 is concave. The eighth lens E8 has negative focal power, and its object side surface S16 is convex, and its image side surface S17 is concave. The ninth lens E9 has positive focal power, and its object side surface S17 is convex, and its image side surface S18 is concave. The tenth lens E10 has positive refractive power, and its object side surface S19 is convex, and its image side surface S20 is concave. The filter E11 has an object side surface S21 and an image side surface S22. Light from the object passes through each surface S1 to S22 in sequence and is finally imaged on the imaging surface S23.

[0042] Table 3 shows the surface type, curvature radius, thickness and material of each lens of the optical imaging lens of Example 2, wherein the units of the curvature radius and thickness are both millimeters (mm).

[0043] Table 3

[0044] 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 an aspherical surface, and the surface shape of each aspherical lens can be defined by but not limited to the following aspherical surface formula:

[0045] Wherein, 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 vertex of the aspheric surface, k is the cone coefficient, and Ai is the coefficient corresponding to the i-th high-order term in the aspheric surface shape formula. Table 4 shows the cone coefficients and high-order term coefficients A4, A6, A8, A10, A12, A14 and A16 of each aspheric surface that can be used in the first embodiment.

[0046] Table 4

[0047] Figure 4 The distortion curve of the optical imaging lens of Example 2 is shown. Astigmatism represents the meridional image curvature and the sagittal image curvature; distortion represents the distortion magnitude value corresponding to different image heights. The optical imaging lens provided in Example 2 can achieve good imaging quality.

[0048] Embodiment 3 The following reference Figures 5 and 6 An optical imaging lens according to Embodiment 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown.

[0049] 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.

[0050] The first lens E1 has negative focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative focal power, and its image side surface S4 is concave. The third lens E3 has negative focal power, and its object side surface S5 is concave, and its image side surface S6 is concave. The fourth lens E4 has positive focal power, and its image side surface S8 is convex. The fifth lens E5 is a reflecting element. The sixth lens E6 has positive focal power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has positive focal power, and its object side surface S13 is convex, and its image side surface S14 is concave. The eighth lens E8 has negative focal power, and its object side surface S16 is convex, and its image side surface S17 is concave. The ninth lens E9 has positive focal power, and its object side surface S17 is convex, and its image side surface S18 is concave. The tenth lens E10 has positive refractive power, and its object side surface S19 is convex, and its image side surface S20 is concave. The filter E11 has an object side surface S21 and an image side surface S22. Light from the object passes through each surface S1 to S22 in sequence and is finally imaged on the imaging surface S23.

[0051] Table 5 shows the surface type, curvature radius, thickness and material of each lens of the optical imaging lens of Example 3, wherein the units of the curvature radius and thickness are both millimeters (mm).

[0052] Table 5

[0053] 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 an aspherical surface, and the surface shape of each aspherical lens can be defined by but not limited to the following aspherical surface formula:

[0054] Wherein, 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 vertex of the aspheric surface, k is the cone coefficient, and Ai is the coefficient corresponding to the i-th high-order term in the aspheric surface shape formula. Table 6 shows the cone coefficients and high-order term coefficients A4, A6, A8, A10, A12, A14 and A16 of each aspheric surface that can be used in the first embodiment.

[0055] Table 6

[0056] Figure 6 The distortion curve of the optical imaging lens of Example 3 is shown. Astigmatism represents the meridional image curvature and the sagittal image curvature; distortion represents the distortion magnitude value corresponding to different image heights. The optical imaging lens provided in Example 3 can achieve good imaging quality.

[0057] Embodiment 4: The following reference Figures 7 and 8 An optical imaging lens according to Embodiment 4 of the present application is described. Figure 7 A schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application is shown.

[0058] 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.

[0059] The first lens E1 has negative focal power, and its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative focal power, and its image side surface S4 is concave. The third lens E3 has negative focal power, and its object side surface S5 is concave, and its image side surface S6 is concave. The fourth lens E4 has positive focal power, and its image side surface S8 is convex. The fifth lens E5 is a reflecting element. The sixth lens E6 has positive focal power, and its object side surface S11 is convex, and its image side surface S12 is convex. The seventh lens E7 has positive focal power, and its object side surface S13 is convex, and its image side surface S14 is concave. The eighth lens E8 has negative focal power, and its object side surface S16 is convex, and its image side surface S17 is concave. The ninth lens E9 has positive focal power, and its object side surface S17 is convex, and its image side surface S18 is concave. The tenth lens E10 has positive refractive power, and its object side surface S19 is convex, and its image side surface S20 is concave. The filter E11 has an object side surface S21 and an image side surface S22. Light from the object passes through each surface S1 to S22 in sequence and is finally imaged on the imaging surface S23.

[0060] Table 7 shows the surface type, curvature radius, thickness and material of each lens of the optical imaging lens of Example 4, wherein the units of the curvature radius and thickness are both millimeters (mm).

[0061] Table 7

[0062] In Table 8, 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 an aspherical surface, and the surface shape of each aspherical lens can be defined by but not limited to the following aspherical surface formula:

[0063] Wherein, 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 vertex of the aspheric surface, k is the cone coefficient, and Ai is the coefficient corresponding to the i-th high-order term in the aspheric surface shape formula. Table 6 shows the cone coefficients and high-order term coefficients A4, A6, A8, A10, A12, A14 and A16 of each aspheric surface that can be used in the first embodiment.

[0064] Table 8

[0065] 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; distortion represents the distortion magnitude value corresponding to different image heights. The optical imaging lens provided in Example 4 can achieve good imaging quality.

[0066] A camera module at least includes an optical lens, in which a panoramic wide-angle high-resolution optical system is installed. The optical lens is mainly composed of 9 lenses and 1 reflective element. Through reasonable lens shape matching, 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 higher imaging quality. It has good application prospects in the field of sports cameras.

[0067] As described above, one or more implementation methods are provided in combination with specific contents, and the specific implementation of the present invention is not limited to these descriptions. Any similarity or similarity with the method, structure, etc. of the present invention, or any technical deduction or replacement based on the concept of the present invention, shall be regarded as the protection scope of the present invention.

Claims

1. A panoramic wide-angle high-resolution optical system, characterized in that: It is composed of 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 in sequence along the optical axis from the object plane to the image plane; The first lens has a negative focal power, its object side is convex, and its image side is concave; The second lens has a negative focal power, and its image side is concave; The third lens has a negative focal power, its object side is concave, and its image side is concave; The fourth lens has a positive focal power, and its image side is convex; The reflecting element is used to reflect the light beam passing through the fourth lens to the sixth lens; The sixth lens has a positive focal power, its object side is convex, and its image side is convex; The seventh lens has a positive focal power, its object side is convex, and its image side is concave; The eighth lens has a negative focal power, its object side is convex, and its image side is concave; The ninth lens has a positive focal power, its object side is convex, and its image side is concave; The tenth lens has a positive focal power, its object side is convex, and its image side is concave; The eighth lens and the ninth lens are adhesively bonded to form a combined lens.

2. The panoramic wide-angle high-resolution optical system according to claim 1, characterized in that: Each lens of the optical system satisfies the following conditions: -20.0<f1<-5.0； -10.0<f2<-2.0； -60.0<f3<-3.0； 15.0<f4<30.0； 1.0<f6<10.0； 20.0<f7<255.0； -8.5<f8<-1.5； 2.0<f9<8.0； -125.0<f89<-5.0； -50.0<f10<470.0； 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 lens and the ninth lens, and f10 is the focal length of the tenth lens.

3. The panoramic wide-angle high-resolution optical system according to claim 1, characterized in that: 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; Among them, 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 lens and the ninth lens, and f10 is the focal length of the tenth lens.

4. The panoramic wide-angle high-resolution optical system according to any one of claims 1 to 3, characterized in that: The optical system satisfies the following relationship: 0.10 < f / TTL*ImagH < 0.50; Among them, 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 plane, and ImgH is half of the diagonal length of the effective pixel area on the imaging plane.

5. The panoramic wide-angle high-resolution optical system according to any one of claims 1 to 3, 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.

6. The panoramic wide-angle high-resolution optical system according to any one of claims 1 to 3, 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.

7. The panoramic wide-angle high-resolution optical system according to any one of claims 1 to 3, 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.

8. The panoramic wide-angle high-resolution optical system according to any one of claims 1 to 3, characterized in that: The full field of view angle of the optical system is between 180° - 220°.

9. The panoramic wide-angle high-resolution optical system according to any one of claims 1 to 3, 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.

10. A camera module, comprising at least an optical lens, characterized in that: The panoramic wide-angle high-resolution optical system according to any one of claims 1-9 is installed in the optical lens.

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