Shooting optical lens

Abstract

The invention relates to the field of optical lenses, and discloses a camera shooting optical lens which is composed of seven lenses which are sequentially a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens from the object side to the image side. The focal length of the optical camera lens is f, the focal length of the seventh lens is f7, the field angle of the 1.0 field of view of the optical camera lens is FOV, the image height of the 1.0 field of view of the optical camera lens is IH, the center curvature radius of the object side surface of the sixth lens is R11, the curvature radius of the image side surface of the sixth lens is R12, and the following relational expressions are met: f7 / f is greater than or equal to 3.95 and less than or equal to 6.00; 100.00 < = (FOV * f) / IH < = 120.00; and 3.50 < = (R11 + R12) / (R11-R12) < = 70.00. The camera shooting optical lens provided by the invention has good optical performance and meets the design requirements of large aperture and ultra-wide angle.

Description

[Technical field]

[0001] The present invention relates to the field of optical lenses, and in particular to an optical lens suitable for portable terminal devices such as sports cameras, smart phones, digital cameras, and camera devices such as monitors and PC lenses. [Background technology]

[0002] In recent years, with the rise of smart phones, the demand for miniaturized camera lenses has been increasing. The photosensitive devices of general camera lenses are nothing more than charge coupled devices (CCD) or complementary metal-oxide semiconductor sensors (CMOS sensors). Due to the improvement of semiconductor manufacturing process technology, the pixel size of photosensitive devices has been reduced. In addition, the current development trend of electronic products is to have good functions and a thin and light appearance. Therefore, miniaturized camera lenses with good imaging quality have become the mainstream in the current market.

[0003] In order to obtain better imaging quality, the traditional lenses installed in mobile phone cameras mostly adopt three-piece, four-piece, or even five-piece or six-piece lens structures. However, with the development of technology and the increase in diversified user needs, the pixel area of ​​photosensitive devices continues to shrink, and the system's requirements for imaging quality continue to increase. The seven-piece lens structure has gradually appeared in lens design. Although the common seven-piece lens has good optical performance, its optical power, lens spacing and lens shape settings are still somewhat unreasonable, resulting in the lens structure having good optical performance while being unable to meet the design requirements of large aperture and ultra-wide angle. [Summary of the invention]

[0004] In view of the above problems, an object of the present invention is to provide a camera optical lens which has good optical performance and meets the design requirements of large aperture and ultra-wide angle.

[0005] To achieve the above object, the technical solution of the present invention provides a camera optical lens, which comprises seven lenses in total, and the seven lenses are, from the object side to the image side, in order: a first lens with negative refractive power, a second lens with positive refractive power, a third lens with positive refractive power, a fourth lens with positive refractive power, a fifth lens with negative refractive power, a sixth lens with refractive power, and a seventh lens with positive refractive power;

[0006] The focal length of the camera optical lens is f, the focal length of the seventh lens is f7, the field angle of 1.0 field of view of the camera optical lens is FOV, the image height of 1.0 field of view of the camera optical lens is IH, the central curvature radius of the object side of the sixth lens is R11, and the central curvature radius of the image side of the sixth lens is R12, satisfying the following relationship:

[0007] 3.95≤f7 / f≤6.00;

[0008] 100.00≤(FOV*f) / IH≤120.00;

[0009] 3.50≤(R11+R12) / (R11-R12)≤70.00.

[0010] Preferably, the refractive index of the first lens is n1, and satisfies the following relationship:

[0011] 1.70≤n1≤2.10.

[0012] Preferably, the distance of the camera optical lens at infinity focus is BF, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied:

[0013] 0.10≤BF / TTL≤0.25.

[0014] Preferably, the on-axis thickness of the second lens is d3, the on-axis thickness of the third lens is d5, and the following relationship is satisfied:

[0015] 1.40≤d3 / d5≤3.00.

[0016] Preferably, the object side surface of the first lens is convex at the near axis, and the image side surface of the first lens is concave at the near axis;

[0017] The focal length of the first lens is f1, the central curvature radius of the object side of the first lens is R1, the central curvature radius of the image side of the first lens is R2, and the axial thickness of the first lens is d1, and the following relationship is satisfied:

[0018] -1.50≤f1 / f≤-1.10;

[0019] 1.10≤(R1+R2) / (R1-R2)≤1.35;

[0020] 0.03≤d1 / TTL≤0.17.

[0021] Preferably, the object side surface of the second lens is concave at the near axis, and the image side surface of the second lens is convex at the near axis;

[0022] The focal length of the second lens is f2, the central curvature radius of the object side of the second lens is R3, the central curvature radius of the image side of the second lens is R4, and the axial thickness of the second lens is d3, and the following relationship is satisfied:

[0023] 5.60≤f2 / f≤7.80;

[0024] 0.99≤(R3+R4) / (R3-R4)≤1.33;

[0025] 0.15≤d3 / TTL≤0.24.

[0026] Preferably, the object side surface of the third lens is convex at the near axis, and the image side surface of the third lens is convex at the near axis;

[0027] The focal length of the third lens is f3, the central curvature radius of the object side of the third lens is R5, the central curvature radius of the image side of the third lens is R6, and the axial thickness of the third lens is d5, and the following relationship is satisfied:

[0028] 1.52≤f3 / f≤1.80;

[0029] -0.21≤(R5+R6) / (R5-R6)≤-0.17;

[0030] 0.06≤d5 / TTL≤0.13.

[0031] Preferably, the object side surface of the fourth lens is convex at the paraxial position, and the image side surface of the fourth lens is convex at the paraxial position;

[0032] The focal length of the fourth lens is f4, the central curvature radius of the object side of the fourth lens is R7, the central curvature radius of the image side of the fourth lens is R8, and the axial thickness of the fourth lens is d7, and the following relationship is satisfied:

[0033] 1.70≤f4 / f≤1.96;

[0034] -0.85≤(R7+R8) / (R7-R8)≤-0.50;

[0035] 0.04≤d7 / TTL≤0.06.

[0036] Preferably, the object side surface of the fifth lens is concave at the paraxial position, and the image side surface of the fifth lens is concave at the paraxial position;

[0037] The focal length of the fifth lens is f5, the central curvature radius of the object side of the fifth lens is R9, the central curvature radius of the image side of the fifth lens is R10, and the axial thickness of the fifth lens is d9, and the following relationship is satisfied:

[0038] -1.60≤f5 / f≤-1.40;

[0039] 0.20≤(R9+R10) / (R9-R10)≤0.42;

[0040] 0.02≤d9 / TTL≤0.04.

[0041] Preferably, the object side surface of the sixth lens is convex at the near axis, and the image side surface of the sixth lens is concave at the near axis;

[0042] The focal length of the sixth lens is f6, and the axial thickness of the sixth lens is d11, and the following relationship is satisfied:

[0043] -13.50≤f6 / f≤72.00;

[0044] 0.02≤d11 / TTL≤0.05.

[0045] Preferably, the object side surface of the seventh lens is convex at the near axis, and the image side surface of the seventh lens is concave at the near axis;

[0046] The central curvature radius of the object side of the seventh lens is R13, the central curvature radius of the image side of the seventh lens is R14, and the axial thickness of the seventh lens is d13, and the following relationship is satisfied:

[0047] -3.80≤(R13+R14) / (R13-R14)≤-2.20;

[0048] 0.02≤d13 / TTL≤0.09.

[0049] Preferably, the first lens, the third lens and the seventh lens are all made of glass, and the second lens, the fourth lens, the fifth lens and the sixth lens are all made of plastic.

[0050] Preferably, the aperture value FNO of the camera optical lens is ≤2.30; the field of view angle FOV of 1.0 field of view of the camera optical lens is ≥154.67°.

[0051] The beneficial effects of the present invention are as follows: the camera optical lens according to the present invention has good optical performance, and has the characteristics of large aperture and ultra-wide angle, and is particularly suitable for mobile phone camera lens assemblies and WEB camera lenses composed of camera elements such as CCD and CMOS for high pixels.

Brief Description of the Drawings

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0053] Figure 1 is a schematic structural diagram of an imaging optical lens according to a first embodiment;

[0054] Figure 2 yes Figure 1 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0055] Figure 3 yes Figure 1 Schematic diagram of axial aberration of the camera optical lens shown;

[0056] Figure 4 yes Figure 1 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0057] Figure 5 is a schematic structural diagram of an imaging optical lens according to a second embodiment;

[0058] Figure 6 yes Figure 5 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0059] Figure 7 yes Figure 5 Schematic diagram of axial aberration of the camera optical lens shown;

[0060] Figure 8 yes Figure 5 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0061] Fig. 9 is a schematic structural diagram of an imaging optical lens according to a third embodiment;

[0062] Fig.10 yes Fig. 9 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0063] Fig.11 yes Fig. 9 Schematic diagram of axial aberration of the camera optical lens shown;

[0064] Fig.12 yes Fig. 9 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0065] Fig.13 is a schematic structural diagram of an imaging optical lens according to a fourth embodiment;

[0066] Fig.14 yes Fig.13 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0067] Fig.15 yes Fig.13 Schematic diagram of axial aberration of the camera optical lens shown;

[0068] Fig.16 yes Fig.13 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0069] Fig.17 is a schematic structural diagram of an imaging optical lens according to a fifth embodiment;

[0070] Fig.18 yes Fig.17 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0071] Fig.19 yes Fig.17 Schematic diagram of axial aberration of the camera optical lens shown;

[0072] Fig. 20 yes Fig.17 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0073] Fig.21 is a schematic structural diagram of an imaging optical lens according to a sixth embodiment;

[0074] Fig. 22 yes Fig.21 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0075] Fig.23 yes Fig.21 Schematic diagram of axial aberration of the camera optical lens shown;

[0076] Fig.24 yes Fig.21 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0077] Fig.25 is a schematic structural diagram of an imaging optical lens according to a seventh embodiment;

[0078] Fig.26 yes Fig.25 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0079] Fig. 27 yes Fig.25 Schematic diagram of axial aberration of the camera optical lens shown;

[0080] Fig.28 yes Fig.25 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0081] Fig.29 is a schematic structural diagram of a camera optical lens according to a comparative implementation mode;

[0082] Fig.30 yes Fig.29 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0083] Fig.31 yes Fig.29 Schematic diagram of axial aberration of the camera optical lens shown;

[0084] Fig.32 yes Fig.29 Schematic diagram of field curvature and distortion of the camera optical lens shown. [Specific implementation method]

[0085] In order to make the purpose, technical scheme and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the embodiments of the present invention, many technical details are provided to enable readers to better understand the present invention. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present invention can be implemented.

[0086] Please refer to the accompanying drawings. The technical solution of the present invention provides a camera optical lens 10, 20, 30, 40, 50, 60, 70. Figure 1 , 5 , 9, 13, 17, 21, 25 show the camera optical lenses 10, 20, 30, 40, 50, 60, 70 of the present invention, and the camera optical lenses 10, 20, 30, 40, 50, 60, 70 include nine lenses in total. Specifically, the camera optical lenses, from the object side to the image side, are: a first lens L1, a second lens L2, a third lens L3, an aperture S1, a fourth lens L4, a fifth lens L5, a sixth lens L6, and a seventh lens L7. An optical element such as an optical filter GF may be provided between the seventh lens L7 and the image plane Si.

[0087] The seven lenses are, from the object side to the image side, in order: a first lens L1 with negative refractive power, a second lens L2 with positive refractive power, a third lens L3 with positive refractive power, a fourth lens L4 with positive refractive power, a fifth lens L5 with negative refractive power, a sixth lens L6 with positive or negative refractive power, and a seventh lens L7 with positive refractive power.

[0088] The focal lengths of the camera optical lenses 10, 20, 30, 40, 50, 60, and 70 are defined as f, and the focal length of the seventh lens L7 is defined as f7, satisfying the following relationship 3.95≤f7 / f≤6.00; within the conditional range, the focal length of the last lens can be controlled, which helps to collect light and ensure the amount of light transmitted.

[0089] The field of view angle of 1.0 field of view of the camera optical lens 10, 20, 30, 40, 50, 60, 70 is defined as FOV, and the image height of 1.0 field of view of the camera optical lens 10, 20, 30, 40, 50, 60, 70 is defined as IH, which satisfies the following relationship: 100.00≤(FOV*f) / IH≤120.00; within the range of the conditional expression, a large field of view angle and a long focus can be taken into account to achieve a medium-distance imaging effect.

[0090] The central curvature radius of the object side of the sixth lens L6 is defined as R11, and the central curvature radius of the image side of the sixth lens L6 is defined as R12, satisfying the following relationship: 3.50≤(R11+R12) / (R11-R12)≤70.00. The shape of the sixth lens L6 is defined to mitigate the degree of deviation of light passing through the lens within the conditional range, effectively correct chromatic aberration, and make chromatic aberration |LC|≤10.0μm.

[0091] When the above conditions are met, the camera optical lenses 10, 20, 30, 40, 50, 60, 70 have good optical performance and can meet the design requirements of large aperture, ultra-wide angle and ultra-thinness. According to the characteristics of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, the camera optical lenses 10, 20, 30, 40, 50, 60, 70 are particularly suitable for sports cameras, mobile phone camera lens assemblies and WEB camera lenses composed of high-pixel CCD, CMOS and other camera elements.

[0092] Based on the above conditional expressions and the functions that can be achieved, the characteristics of each lens are further refined as follows.

[0093] The refractive index of the first lens L1 is defined as n1, and satisfies the following relationship: 1.70≤n1≤2.10. The first lens L1 is preferably made of a high refractive index material, which is beneficial to reducing the front port diameter and improving the imaging quality.

[0094] The axial distance from the image side of the seventh lens L7 to the image plane is defined as BF, and the total optical length of the camera optical lenses 10, 20, 30, 40, 50, 60, 70 is TTL, and the following relationship is satisfied: 0.10≤BF / TTL≤0.25. On the basis of miniaturization, the back focal length is conducive to the assembly of the module, the total length is short, the structure is compact, the sensitivity of the lens to MTF is reduced, the production yield is improved, and the production cost is reduced.

[0095] The axial thickness of the second lens L2 is defined as d3, and the axial thickness of the third lens L3 is defined as d5, and the following relationship is satisfied: 1.40≤d3 / d5≤3.00. The ratio of the core thickness of the second lens L2 to the core thickness of the third lens L3 is defined, and within the range of the conditional expression, it is helpful to reduce the total length of the optical system.

[0096] The object side surface of the first lens L1 is convex at the paraxial position, and the image side surface of the first lens L1 is concave at the paraxial position. The object side surface and the image side surface of the first lens L1 can also be set to other concave and convex distributions.

[0097] The focal lengths of the camera optical lenses 10, 20, 30, 40, 50, 60, and 70 are defined as f, the focal length of the first lens L1 is defined as f1, and the following relationship is satisfied: -1.50≤f1 / f≤-1.10; through the reasonable distribution of optical power, the system has better imaging quality and lower sensitivity.

[0098] The central curvature radius of the object side surface of the first lens L1 is R1, the central curvature radius of the image side surface of the first lens L1 is R2, 1.10≤(R1+R2) / (R1-R2)≤1.35; the shape of the first lens L1 is specified. When it is within the range, with the development of ultra-thin and wide-angle, it is beneficial to correct the aberration of off-axis picture angles and other problems.

[0099] The axial thickness of the first lens L1 is d1, the total optical length of the camera optical lenses 10, 20, 30, 40, 50, 60, 70 is TTL, and the following relationship is satisfied: 0.03≤d1 / TTL≤0.17. Within the conditional range, it is conducive to achieving ultra-thinness.

[0100] In this embodiment, the object side surface of the second lens L2 is concave at the paraxial position, and the image side surface of the second lens L2 is convex at the paraxial position. The object side surface and image side surface of the second lens L2 can also be set to other concave and convex distributions.

[0101] The focal lengths of the camera optical lenses 10, 20, 30, 40, 50, 60, and 70 are defined as f, the focal length of the second lens L2 is defined as f2, and the following relationship is satisfied: 5.60≤f2 / f≤7.80. By properly distributing the focal length, the system has better imaging quality and lower sensitivity.

[0102] The central curvature radius of the object side of the second lens L2 is R3, and the central curvature radius of the image side of the second lens L2 is R4, and the following relationship is satisfied: 0.99≤(R3+R4) / (R3-R4)≤1.33. The shape of the second lens L2 is specified. When it is within the range, with the development of ultra-thin wide-angle, it is beneficial to correct the aberration of the off-axis picture angle and other problems.

[0103] The axial thickness of the second lens L2 is d3, the total optical length of the imaging optical lenses 10, 20, 30, 40, 50, 60, 70 is TTL, and 0.15≤d3 / TTL≤0.24. Within the conditional range, it is conducive to achieving ultra-thinness.

[0104] In this embodiment, the object side surface of the third lens L3 is convex at the paraxial position, and the image side surface of the third lens L3 is convex at the paraxial position. The object side surface and image side surface of the third lens L3 can also be set to other concave and convex distributions.

[0105] The focal lengths of the camera optical lenses 10, 20, 30, 40, 50, 60, and 70 are defined as f, the focal length of the third lens L3 is defined as f3, and the following relationship is satisfied: 1.52≤f3 / f≤1.80; by reasonably distributing the focal length of the third lens L3, the system has better imaging quality and lower sensitivity.

[0106] The central curvature radius of the object side surface of the third lens L3 is R5, the central curvature radius of the image side surface of the third lens L3 is R6, and the following relationship is satisfied: -0.21≤(R5+R6) / (R5-R6)≤-0.17; the shape of the third lens L3 is specified. When it is within the range, with the development of ultra-thin and wide-angle, it is beneficial to correct the aberration of off-axis picture angles and other problems.

[0107] The axial thickness of the third lens L3 is d5, the total optical length of the camera optical lenses 10, 20, 30, 40, 50, 60, 70 is TTL, and the following relationship is satisfied: 0.06≤d5 / TTL≤0.13. Within the conditional range, it is conducive to achieving ultra-thinness.

[0108] In this embodiment, the object side surface of the fourth lens L4 is convex at the paraxial position, and the image side surface of the fourth lens L4 is convex at the paraxial position. The object side surface and image side surface of the fourth lens L4 can also be set to other concave and convex distributions.

[0109] The focal lengths of the camera optical lenses 10, 20, 30, 40, 50, 60, and 70 are defined as f, the focal length of the fourth lens L4 is defined as f4, and the following relationship is satisfied: 1.70≤f4 / f≤1.96; by controlling the positive focal power of the fourth lens L4 within a reasonable range, it is beneficial to correct the aberration of the optical system.

[0110] The central curvature radius of the object side surface of the fourth lens L4 is R7, the central curvature radius of the image side surface of the fourth lens L4 is R8, and the following relationship is satisfied: -0.85≤(R7+R8) / (R7-R8)≤-0.50; the shape of the fourth lens L4 is specified. When it is within the range, as the lens develops towards ultra-thin and wide-angle, it is beneficial to correct the axial chromatic aberration problem.

[0111] The axial thickness of the fourth lens L4 is d7, the total optical length of the camera optical lenses 10, 20, 30, 40, 50, 60, 70 is TTL, and the following relationship is satisfied: 0.04≤d7 / TTL≤0.06. Within the conditional range, it is conducive to achieving ultra-thinness.

[0112] In this embodiment, the object side surface of the fifth lens L5 is concave at the paraxial position, and the image side surface of the fifth lens L5 is concave at the paraxial position. The object side surface and image side surface of the fifth lens L5 can also be set to other concave or convex distributions.

[0113] The focal lengths of the camera optical lenses 10, 20, 30, 40, 50, 60, and 70 are defined as f, the focal length of the fifth lens L5 is defined as f5, and the following relationship is satisfied: -1.60≤f5 / f≤-1.40; the limitation on the fifth lens L5 can effectively smooth the light angle of the camera optical lens 10 and reduce the tolerance sensitivity.

[0114] The central curvature radius of the object side surface of the fifth lens L5 is R9, the central curvature radius of the image side surface of the fifth lens L5 is R10, and the following relationship is satisfied: 0.20≤(R9+R10) / (R9-R10)≤0.42; the shape of the fifth lens L5 is specified, which is beneficial to the molding of the fifth lens L5. When it is within the range, with the development of ultra-thin and wide-angle, it is beneficial to correct the aberration of off-axis picture angles and other problems.

[0115] The axial thickness of the fifth lens L5 is d9, the total optical length of the camera optical lenses 10, 20, 30, 40, 50, 60, 70 is TTL, and the following relationship is satisfied: 0.02≤d9 / TTL≤0.04. Within the conditional range, it is conducive to achieving ultra-thinness.

[0116] In this embodiment, the object side surface of the sixth lens L6 is convex at the paraxial position, and the image side surface of the sixth lens L6 is concave at the paraxial position. The object side surface and the image side surface of the sixth lens L6 can be set to other concave and convex distributions.

[0117] The focal lengths of the camera optical lenses 10, 20, 30, 40, 50, 60, and 70 are defined as f, the focal length of the sixth lens L6 is defined as f6, and the following relationship is satisfied: -13.50≤f6 / f≤72.00; by reasonably allocating the focal length of the sixth lens L6, the system has better imaging quality and lower sensitivity.

[0118] The axial thickness of the sixth lens L6 is d11, the total optical length of the camera optical lenses 10, 20, 30, 40, 50, 60, 70 is TTL, and the following relationship is satisfied: 0.02≤d11 / TTL≤0.05. Within the conditional range, it is conducive to achieving ultra-thinness.

[0119] In this embodiment, the object side surface of the seventh lens L7 is convex at the paraxial position, and the image side surface of the seventh lens L7 is concave at the paraxial position. The object side surface and image side surface of the seventh lens L7 can also be set to other concave and convex distributions.

[0120] The central curvature radius of the object side surface of the seventh lens L7 is R13, the central curvature radius of the image side surface of the seventh lens L7 is R14, and the following relationship is satisfied: -3.80≤(R13+R14) / (R13-R14)≤-2.20; the shape of the seventh lens L7 is specified. When it is within the range, as the lens develops towards ultra-thin and wide-angle, it is beneficial to correct the axial chromatic aberration problem.

[0121] The axial thickness of the seventh lens L7 is d13, the total optical length of the imaging optical lenses 10, 20, 30, 40, 50, 60, 70 is TTL, and the following relationship is satisfied: 0.02≤d13 / TTL≤0.09. Within the conditional range, it is conducive to achieving ultra-thinness.

[0122] In this embodiment, the aperture value FNO of the camera optical lens 10, 20, 30, 40, 50, 60, 70 is defined as ≤2.30; the field of view FOV of the camera optical lens 10, 20, 30, 40, 50, 60, 70 is defined as ≥154.67, thereby achieving a wide angle.

[0123] In the present embodiment, the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, 60, 70 is less than or equal to 11.25 mm, which is conducive to achieving ultra-thinness.

[0124] Such a design can make the total optical length TTL of the entire camera optical lens 10, 20, 30, 40, 50, 60, 70 as short as possible, while maintaining the miniaturization characteristic.

[0125] FNO is the focal number of the camera optical lens 10, 20, 30, 40, 50, 60, 70, that is, the ratio of the effective focal length to the entrance pupil diameter, and satisfies the following relationship: FNO≤2.37, which is conducive to achieving a large aperture and good imaging performance; the field of view is FOV, and satisfies the following relationship: FOV≥154°, which is conducive to achieving a wide angle. That is, when the above relationship is satisfied, the camera optical lens 10, 20, 30, 40, 50, 60, 70 can achieve good optical imaging performance while meeting the design requirements of large aperture and ultra-thinness; according to the characteristics of the camera optical lens 10, 20, 30, 40, 50, 60, 70, the camera optical lens 10, 20, 30, 40, 50, 60, 70 is particularly suitable for sports cameras, mobile phone camera lens components and WEB camera lenses composed of high-pixel CCD, CMOS and other camera elements.

[0126] The first lens L1, the third lens L3 and the seventh lens L7 are all made of glass, and the second lens L2, the fourth lens L4, the fifth lens L5 and the sixth lens L6 are all made of plastic. Each lens may also be made of other materials.

[0127] The following examples are used to illustrate the camera optical lens of the present invention. The symbols recorded in each example are as follows. The focal length, on-axis distance, central curvature radius, on-axis thickness, inflection point position, and stationary point position are in units of mm.

[0128] TTL: total optical length (the axial distance from the object side of the first lens L1 to the image plane Si), in mm.

[0129] Aperture value FNO: refers to the ratio of the effective focal length of the camera optical lens to the entrance pupil diameter.

[0130] 1.0 Image height IH of the field of view: the height of the field of view corresponding to the effective pixel of the sensor (that is, half of the diagonal length of the effective pixel area of ​​the sensor);

[0131] 1.0 Field of view FOV: the field of view angle corresponding to the effective pixels of the sensor;

[0132] Preferably, an inflection point and / or a stagnation point may be provided on the object side and / or the image side of the lens to meet high-quality imaging requirements.

[0133] Next, the technical solution of the present invention is specifically described with seven implementation modes. At the same time, a comparative implementation mode is provided as a reference. When the scope of the above conditional formula is exceeded, the technical effect of the present invention cannot be achieved.

[0134] (First Embodiment)

[0135] Figure 1 FIG. 2 is a first embodiment of an imaging optical lens 20 according to the present invention. The sixth lens L6 has negative refractive power.

[0136] Table 1 and Table 2 show design data of the imaging optical lens 10 according to the first embodiment of the present invention.

[0137]

Table 1

[0138]

[0139] The meaning of each symbol is as follows.

[0140] S1: aperture;

[0141] R: radius of curvature at the center of the optical surface;

[0142] R1: the central curvature radius of the object side of the first lens L1;

[0143] R2: the central curvature radius of the image side surface of the first lens L1;

[0144] R3: the central curvature radius of the object side surface of the second lens L2;

[0145] R4: the central curvature radius of the image side surface of the second lens L2;

[0146] R5: the central curvature radius of the object side surface of the third lens L3;

[0147] R6: the central curvature radius of the image side surface of the third lens L3;

[0148] R7: the central curvature radius of the object side surface of the fourth lens L4;

[0149] R8: the central curvature radius of the image side surface of the fourth lens L4;

[0150] R9: the central curvature radius of the object side surface of the fifth lens L5;

[0151] R10: the central curvature radius of the image side surface of the fifth lens L5;

[0152] R11: central curvature radius of the object side surface of the sixth lens L6;

[0153] R12: central curvature radius of the image side surface of the sixth lens L6;

[0154] R13: central curvature radius of the object side surface of the seventh lens L7;

[0155] R14: central curvature radius of the image side surface of the seventh lens L7;

[0156] R15: the central curvature radius of the object side of the optical filter GF;

[0157] R16: the central curvature radius of the image side of the optical filter GF;

[0158] d: the axial thickness of the lens, the axial distance between lenses;

[0159] d0: the axial distance from the aperture S1 to the object side of the first lens L1;

[0160] d1: axial thickness of the first lens L1;

[0161] d2: the axial distance from the image side surface of the first lens L1 to the object side surface of the second lens L2;

[0162] d3: axial thickness of the second lens L2;

[0163] d4: the axial distance from the image side surface of the second lens L2 to the object side surface of the third lens L3;

[0164] d5: axial thickness of the third lens L3;

[0165] d6: the axial distance from the image side surface of the third lens L3 to the object side surface of the fourth lens L4;

[0166] d7: axial thickness of the fourth lens L4;

[0167] d8: the axial distance from the image side surface of the fourth lens L4 to the object side surface of the fifth lens L5;

[0168] d9: axial thickness of the fifth lens L5;

[0169] d10: the axial distance from the image side surface of the fifth lens L5 to the object side surface of the sixth lens L6;

[0170] d11: axial thickness of the sixth lens L6;

[0171] d12: axial distance from the image side surface of the sixth lens L6 to the object side surface of the seventh lens L7;

[0172] d13: axial thickness of the seventh lens L7;

[0173] d14: axial distance from the image side surface of the seventh lens L7 to the object side surface of the optical filter GF;

[0174] d15: axial thickness of the optical filter GF;

[0175] d16: the axial distance from the image side of the optical filter GF to the image plane Si;

[0176] nd: refractive index of d-line (d-line is green light with a wavelength of 550nm);

[0177] nd1: refractive index of the first lens L1 at the d-line;

[0178] nd2: refractive index of the d-line of the second lens L2;

[0179] nd3: refractive index of the third lens L3 at the d-line;

[0180] nd4: refractive index of the d-line of the fourth lens L4;

[0181] nd5: the refractive index of the fifth lens L5 at the d-line;

[0182] nd6: the refractive index of the d-line of the sixth lens L6;

[0183] nd7: the refractive index of the d-line of the seventh lens L7;

[0184] ndg: refractive index of the d-line of the optical filter GF;

[0185] vd: Abbe number;

[0186] v1: Abbe number of the first lens L1;

[0187] v2: Abbe number of the second lens L2;

[0188] v3: Abbe number of the third lens L3;

[0189] v4: Abbe number of the fourth lens L4;

[0190] v5: Abbe number of the fifth lens L5;

[0191] v6: Abbe number of sixth lens L6;

[0192] v7: Abbe number of the seventh lens L7;

[0193] vg: Abbe number of the optical filter GF.

[0194] Table 2 shows aspherical surface data of each lens in the imaging optical lens 10 according to the first embodiment of the present invention.

[0195]

Table 2

[0196]

[0197]

[0198] Both R1 and R2 are spherical.

[0199] For convenience, the aspheric surface of each lens surface uses the aspheric surface shown in the above formula (1). However, the present invention is not limited to the aspheric surface polynomial form represented by the formula (1).

[0200] z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A14r 14 +A

[0201] 16r 16 +A18r 18 +A20r 20 (1).

[0202] Where, k is the cone coefficient, A4, A6, A8, A10, A12, A14, A16, A18, A20 are aspheric coefficients, c is the curvature at the center of the optical surface, r is the vertical distance between the point on the aspheric curve and the optical axis, and z is the aspheric depth (the vertical distance between the point on the aspheric surface that is r away from the optical axis and the tangent plane tangent to the vertex on the aspheric optical axis).

[0203] Figure 2 Schematic diagram of magnification chromatic aberration after light with wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm passes through the camera optical lens 10 of the first embodiment, Figure 3 A schematic diagram of axial aberrations of light having wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm after passing through the imaging optical lens 10 of the first embodiment is shown. Figure 4 FIG. 1 shows a schematic diagram of field curvature and distortion of light having a wavelength of 522.0 nm after passing through the camera optical lens 10 of the first embodiment. Figure 4 The field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0204] In this embodiment, the entrance pupil diameter ENPD of the camera optical lens 10 is 2.299 mm, the image height IH of the 1.0 field of view is 3.000 mm, and the field of view angle FOV of the 1.0 field of view is 164.05°. The camera optical lens 10 meets the design requirements of large aperture, ultra-wide angle, and ultra-thinness, and its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0205] (Second Embodiment)

[0206] The meanings of the symbols in the second embodiment are the same as those in the first embodiment.

[0207] Figure 5 FIG. 2 shows an imaging optical lens 20 according to a second embodiment of the present invention.

[0208] Tables 3 and 4 show design data of the imaging optical lens 20 according to the second embodiment of the present invention.

[0209]

Table 3

[0210]

[0211] Table 4 shows aspherical surface data of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.

[0212]

Table 4

[0213]

[0214]

[0215] Figure 6 Schematic diagram of magnification chromatic aberration after light with wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm passes through the imaging optical lens 20 of the second embodiment, Figure 7 A schematic diagram of axial aberrations of light having wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm after passing through the imaging optical lens 20 of the second embodiment is shown. Figure 8 FIG. 2 shows a schematic diagram of field curvature and distortion of light having a wavelength of 522.0 nm after passing through the camera optical lens 20 of the second embodiment. Figure 8 The field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0216] In this embodiment, the entrance pupil diameter ENPD of the camera optical lens 20 is 2.300 mm, the image height IH of the 1.0 field of view is 2.950 mm, and the field of view angle FOV of the 1.0 field of view is 158.84°, so that the camera optical lens 20 meets the design requirements of large aperture, ultra-wide angle, and ultra-thinness, and its on-axis and off-axis chromatic aberrations are fully corrected and have excellent optical characteristics.

[0217] (Third Embodiment)

[0218] The meanings of the symbols in the third embodiment are the same as those in the first embodiment.

[0219] Fig. 9 FIG. 1 shows an imaging optical lens 30 according to a third embodiment of the present invention.

[0220] Tables 5 and 6 show design data of the imaging optical lens 30 according to the third embodiment of the present invention.

[0221]

Table 5

[0222]

[0223] Table 6 shows aspherical surface data of each lens in the imaging optical lens 30 according to the third embodiment of the present invention.

[0224]

Table 6

[0225]

[0226]

[0227] Fig.10 Schematic diagram of magnification chromatic aberration after light with wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm passes through the imaging optical lens 30 of the first embodiment, Fig.11 A schematic diagram of axial aberrations of light having wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm after passing through the imaging optical lens 30 of the third embodiment is shown. Fig.12 FIG. 4 shows a schematic diagram of field curvature and distortion of light having a wavelength of 522.0 nm after passing through the camera optical lens 30 of the third embodiment. Fig.12 The field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0228] In this embodiment, the entrance pupil diameter ENPD of the camera optical lens is 2.300 mm, the image height IH of 1.0 field of view is 2.950 mm, and the field of view angle FOV of 1.0 field of view is 170.04°, so that the camera optical lens 30 meets the design requirements of large aperture, ultra-wide angle, and ultra-thinness, and its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0229] (Fourth Embodiment)

[0230] The meanings of symbols in the fourth embodiment are the same as those in the first embodiment.

[0231] Fig.13 FIG. 4 shows an imaging optical lens 40 according to a fourth embodiment of the present invention.

[0232] Tables 7 and 8 show design data of the imaging optical lens 40 according to the fourth embodiment of the present invention.

[0233]

Table 7

[0234]

[0235]

[0236] Table 8 shows aspherical surface data of each lens in the imaging optical lens 40 according to the fourth embodiment of the present invention.

[0237]

Table 8

[0238]

[0239]

[0240] Fig.14 Schematic diagram of magnification chromatic aberration after light with wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm passes through the imaging optical lens 40 of the fourth embodiment, Fig.15 A schematic diagram of axial aberrations of light having wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm after passing through the imaging optical lens 10 of the fourth embodiment is shown. Fig.16 FIG. 4 shows a schematic diagram of field curvature and distortion of light having a wavelength of 522.0 nm after passing through the camera optical lens 40 of the first embodiment. Fig.16 The field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0241] In this embodiment, the entrance pupil diameter ENPD of the camera optical lens is 2.301 mm, the image height IH of the 1.0 field of view is 2.960 mm, and the field of view angle FOV of the 1.0 field of view is 154.67°, so that the camera optical lens 40 meets the design requirements of large aperture, ultra-wide angle, and ultra-thinness, and its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0242] (Fifth Embodiment)

[0243] The meanings of symbols in the fifth embodiment are the same as those in the first embodiment.

[0244] Fig.17 FIG. 1 shows an imaging optical lens 50 according to a fifth embodiment of the present invention.

[0245] Tables 9 and 10 show design data of the imaging optical lens 50 according to the fifth embodiment of the present invention.

[0246]

Table 9

[0247]

[0248]

[0249] Table 10 shows aspherical surface data of each lens in the imaging optical lens 50 according to the fifth embodiment of the present invention.

[0250]

Table 10

[0251]

[0252]

[0253] Fig.18Schematic diagram of magnification chromatic aberration after light with wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm passes through the imaging optical lens 50 of the fifth embodiment, Fig.19 A schematic diagram of axial aberrations of light having wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm after passing through the imaging optical lens 50 of the fifth embodiment is shown. Fig. 20 FIG. 4 shows a schematic diagram of field curvature and distortion of light having a wavelength of 522.0 nm after passing through the camera optical lens 50 of the fifth embodiment. Fig. 20 The field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0254] In this embodiment, the entrance pupil diameter ENPD of the camera optical lens is 2.299 mm, the image height IH of 1.0 field of view is 2.950 mm, and the field angle FOV of 1.0 field of view is 170.94°, so that the camera optical lens 50 meets the design requirements of large aperture, ultra-wide angle, and ultra-thinness, and its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0255] (Sixth Embodiment)

[0256] The meanings of symbols in the sixth embodiment are the same as those in the first embodiment.

[0257] Fig.21 FIG. 1 shows an imaging optical lens 60 according to a sixth embodiment of the present invention.

[0258] The sixth lens L6 has positive refracting power.

[0259] Tables 11 and 12 show design data of the imaging optical lens 60 according to the sixth embodiment of the present invention.

[0260]

Table 11

[0261]

[0262] Table 12 shows aspherical surface data of each lens in the imaging optical lens 60 according to the sixth embodiment of the present invention.

[0263]

Table 12

[0264]

[0265]

[0266] Fig. 22Schematic diagram of magnification chromatic aberration after light with wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm passes through the camera optical lens 60 of the sixth embodiment, Fig.23 A schematic diagram of axial aberrations of light having wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm after passing through the imaging optical lens 60 of the sixth embodiment is shown. Fig.24 FIG. 4 shows a schematic diagram of field curvature and distortion of light having a wavelength of 522.0 nm after passing through the camera optical lens 60 of the sixth embodiment. Fig.24 The field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0267] In this embodiment, the entrance pupil diameter ENPD of the camera optical lens is 2.301 mm, the image height IH of the 1.0 field of view is 2.915 mm, and the field of view angle FOV of the 1.0 field of view is 179.60°, so that the camera optical lens 60 meets the design requirements of large aperture, ultra-wide angle, and ultra-thinness, and its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0268] (Seventh Embodiment)

[0269] The meanings of symbols in the seventh embodiment are the same as those in the first embodiment.

[0270] Fig.25 FIG. 1 shows an imaging optical lens 70 according to a seventh embodiment of the present invention.

[0271] Table 13 and Table 14 show design data of the imaging optical lens 70 according to the seventh embodiment of the present invention.

[0272]

Table 13

[0273]

[0274]

[0275] Table 14 shows aspherical surface data of each lens in the imaging optical lens 70 according to the seventh embodiment of the present invention.

[0276]

Table 14

[0277]

[0278]

[0279] Fig.26Schematic diagram of magnification chromatic aberration after light with wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm passes through the camera optical lens 70 of the seventh embodiment, Fig. 27 A schematic diagram of axial aberrations of light with wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm after passing through the imaging optical lens 70 of the seventh embodiment is shown. Fig.28 FIG. 4 shows a schematic diagram of field curvature and distortion of light having a wavelength of 522.0 nm after passing through the camera optical lens 70 of the seventh embodiment. Fig.28 The field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0280] In this embodiment, the entrance pupil diameter ENPD of the camera optical lens is 2.299 mm, the image height IH of 1.0 field of view is 3.151 mm, and the field angle FOV of 1.0 field of view is 177.52°, so that the camera optical lens 70 meets the design requirements of large aperture, ultra-wide angle, and ultra-thinness, and its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0281] (Comparative Implementation)

[0282] The meanings of the symbols in the comparative embodiment are the same as those in the first embodiment.

[0283] Fig.29 Shown is a camera optical lens 80 according to a comparative embodiment of the present invention.

[0284] Tables 15 and 16 show design data of an imaging optical lens 80 according to a comparative embodiment of the present invention.

[0285]

Table 15

[0286]

[0287]

[0288] Table 16 shows the aspherical surface data of each lens in the imaging optical lens 80 according to the comparative embodiment of the present invention.

[0289]

Table 16

[0290]

[0291]

[0292] Fig.30A schematic diagram of magnification chromatic aberration after light with wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm passes through the camera optical lens 80 of the comparative embodiment is shown, Fig.31 A schematic diagram of axial aberration of light with wavelengths of 430.0 nm, 449.0 nm, 485.0 nm, 522.0 nm, 558.0 nm, 595.0 nm, 631.0 nm and 660.0 nm after passing through the imaging optical lens 10 of the comparative embodiment is shown. Fig.32 FIG. 1 shows a schematic diagram of field curvature and distortion of light having a wavelength of 522.0 nm after passing through the camera optical lens 80 of the comparative embodiment. Fig.32 The field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0293] Table 17 below lists the values ​​corresponding to the various conditional expressions in this embodiment according to the above conditional expressions. Obviously, the imaging optical lens 80 of the comparative embodiment does not satisfy the above conditional expression 100.00≤(FOV*f) / IH≤120.00.

[0294] In a comparative embodiment, the entrance pupil diameter ENPD of the camera optical lens is 2.299 mm, the image height IH of 1.0 field of view is 3.082 mm, the field of view FOV of 1.0 field of view is 163.47°, and the camera optical lens 80 does not meet the design requirements of ultra-wide angle and ultra-thinness.

[0295]

Table 17

[0296]

[0297]

[0298] Those skilled in the art will appreciate that the above-mentioned embodiments are specific embodiments for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A camera optical lens, characterized in that: The camera optical lens comprises seven lenses in total, and the seven lenses are, in order from the object side to the image side: a first lens with negative refractive power, a second lens with positive refractive power, a third lens with positive refractive power, a fourth lens with positive refractive power, a fifth lens with negative refractive power, a sixth lens with refractive power, and a seventh lens with positive refractive power; The focal length of the camera optical lens is f, the focal length of the seventh lens is f7, the field angle of 1.0 field of view of the camera optical lens is FOV, the image height of 1.0 field of view of the camera optical lens is IH, the central curvature radius of the object side of the sixth lens is R11, and the central curvature radius of the image side of the sixth lens is R12, satisfying the following relationship: 3.95≤f7 / f≤6.00; 100.00≤(FOV*f) / IH≤120.00; 3.50≤(R11+R12) / (R11-R12)≤70.

00.

2. The imaging optical lens according to claim 1, characterized in that: The refractive index of the first lens is n1, and satisfies the following relationship: 1.70≤n1≤2.10。 3. The imaging optical lens according to claim 1, characterized in that: The axial distance from the image side surface of the seventh lens to the image plane is BF, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: 0.10≤BF / TTL≤0.

25.

4. The imaging optical lens according to claim 1, wherein: The axial thickness of the second lens is d3, the axial thickness of the third lens is d5, and the following relationship is satisfied: 1.40≤d3 / d5≤3.

00.

5. The imaging optical lens according to claim 1, wherein: The object side surface of the first lens is convex at the paraxial position, and the image side surface of the first lens is concave at the paraxial position; The focal length of the first lens is f1, the central curvature radius of the object side of the first lens is R1, the central curvature radius of the image side of the first lens is R2, and the axial thickness of the first lens is d1, and the following relationship is satisfied: -1.50≤f1 / f≤-1.10; 1.10≤(R1+R2) / (R1-R2)≤1.35; 0.03≤d1 / TTL≤0.

17.

6. The imaging optical lens according to claim 1, characterized in that: The object side surface of the second lens is concave at the paraxial position, and the image side surface of the second lens is convex at the paraxial position; The focal length of the second lens is f2, the central curvature radius of the object side of the second lens is R3, the central curvature radius of the image side of the second lens is R4, and the axial thickness of the second lens is d3, and the following relationship is satisfied: 5.60≤f2 / f≤7.80; 0.99≤(R3+R4) / (R3-R4)≤1.33; 0.15≤d3 / TTL≤0.

24.

7. The imaging optical lens according to claim 1, characterized in that: The object side surface of the third lens is convex at the paraxial position, and the image side surface of the third lens is convex at the paraxial position; The focal length of the third lens is f3, the central curvature radius of the object side of the third lens is R5, the central curvature radius of the image side of the third lens is R6, and the axial thickness of the third lens is d5, and the following relationship is satisfied: 1.52≤f3 / f≤1.80; -0.21≤(R5+R6) / (R5-R6)≤-0.17; 0.06≤d5 / TTL≤0.

13.

8. The imaging optical lens according to claim 1, wherein: The object side surface of the fourth lens is convex at the paraxial position, and the image side surface of the fourth lens is convex at the paraxial position; The focal length of the fourth lens is f4, the central curvature radius of the object side of the fourth lens is R7, the central curvature radius of the image side of the fourth lens is R8, and the axial thickness of the fourth lens is d7, and the following relationship is satisfied: 1.70≤f4 / f≤1.96; -0.85≤(R7+R8) / (R7-R8)≤-0.50; 0.04≤d7 / TTL≤0.

06.

9. The imaging optical lens according to claim 1, characterized in that: The object side surface of the fifth lens is a concave surface at the paraxial position, and the image side surface of the fifth lens is a concave surface at the paraxial position; The focal length of the fifth lens is f5, the central curvature radius of the object side of the fifth lens is R9, the central curvature radius of the image side of the fifth lens is R10, and the axial thickness of the fifth lens is d9, and the following relationship is satisfied: -1.60≤f5 / f≤--1.40; 0.20≤(R9+R10) / (R9-R10)≤0.42; 0.02≤d9 / TTL≤0.

04.

10. The imaging optical lens according to claim 1, characterized in that: The object side surface of the sixth lens is convex at the near axis, and the image side surface of the sixth lens is concave at the near axis; The focal length of the sixth lens is f6, and the axial thickness of the sixth lens is d11, and the following relationship is satisfied: -13.50≤f6 / f≤72.00; 0.02≤d11 / TTL≤0.

05.

11. The imaging optical lens according to claim 1, characterized in that: The object side surface of the seventh lens is convex at the near axis, and the image side surface of the seventh lens is concave at the near axis; The central curvature radius of the object side of the seventh lens is R13, the central curvature radius of the image side of the seventh lens is R14, and the axial thickness of the seventh lens is d13, and the following relationship is satisfied: -3.80≤(R13+R14) / (R13-R14)≤-2.20; 0.02≤d13 / TTL≤0.

09.

12. The imaging optical lens according to claim 1, characterized in that: The first lens, the third lens and the seventh lens are all made of glass, and the second lens, the fourth lens, the fifth lens and the sixth lens are all made of plastic.

13. The imaging optical lens according to claim 1, characterized in that: The aperture value FNO of the camera optical lens is ≤2.30; the field of view angle FOV of 1.0 field of view of the camera optical lens is ≥154.67°.

Images