Shooting optical lens

Abstract

The invention relates to the field of optical lenses, and discloses a camera shooting optical lens which is sequentially provided with a first prism with positive refraction power, a first lens with negative refraction power, a second lens with positive refraction power and a third lens with negative refraction power from the object side to the image side. A fourth lens element with positive refractive power; and a fifth lens element with positive refractive power. Wherein the focal length of the camera shooting optical lens is fA, the image height of the camera shooting optical lens is IH, the center curvature radius of the object side surface of the first prism is Rp1, the center curvature radius of the image side surface of the first prism is Rp2, the center curvature radius of the object side surface of the first lens is R1, the center curvature radius of the image side surface of the first lens is R2, the thickness on the axis of the third lens is d5, the thickness on the axis of the fourth lens is d7, and the following relational expressions are met: fA / IH is greater than or equal to 3.99 and less than or equal to 4.80; rp1 / Rp2 < = 0.80; 1.40 < = (R1 + R2) / (R1-R2) < = 5.80; 0.16 < = d5 / d7 < = 1.80.

Description

Technical Field

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

[0002] In recent years, with the rise of various smart devices, the demand for miniaturized camera optical lenses has been increasing. Due to the reduction in the pixel size of photosensitive devices and the trend of today's electronic products to have good functions and a thin and portable appearance, miniaturized camera optical lenses with good imaging quality have become the mainstream in the current market. In order to obtain better imaging quality, a multi-lens structure is often used. Among them, internal focus camera lenses are gradually being developed and applied to mobile phone cameras due to their high stability, fast zoom, good cleanliness, and ability to overcome the disadvantages of easy wear of external focus.

[0003] In addition, telephoto cameras can meet consumers' needs for shooting specific targets. The total optical length of traditional telephoto cameras is too large and does not meet the design requirements of thin and light smartphones. The periscope telephoto camera design can significantly shorten the total optical length of the camera optical lens while meeting the telephoto design. However, the optical performance of existing periscope telephoto camera optical lenses still cannot meet the demand. Summary of the invention

[0004] In view of the above problems, the object of the present invention is to provide a camera optical lens, which has good optical performance and meets the design requirements of long focal length, miniaturization and large aperture. In order to solve the above technical problems, the present invention provides a camera optical lens, which is composed of a first prism with positive refractive power, a first lens with negative refractive power, a second lens with positive refractive power, a third lens with negative refractive power, a fourth lens with positive refractive power and a fifth lens arranged in sequence from the object side to the image side;

[0005] The first lens and the second lens are defined as a first group, the third lens, the fourth lens and the fifth lens are defined as a second group, and the second group is movable and adjustable along the optical axis of the camera optical lens, so that the camera optical lens switches between a first state and a second state; wherein the focal length of the camera optical lens in the first state is the largest, and the focal length of the camera optical lens in the second state is the smallest;

[0006] A reflecting surface is provided between the object side surface and the image side surface of the first prism; the focal length of the camera optical lens in the first state is fA, the image height of the camera optical lens is IH, the central curvature radius of the object side surface of the first prism is Rp1, the central curvature radius of the image side surface of the first prism is Rp2, the central curvature radius of the object side surface of the first lens is R1, the central curvature radius of the image side surface of the first lens is R2, the axial thickness of the third lens is d5, the axial thickness of the fourth lens is d7, and the following relationship is satisfied:

[0007] 3.99≤fA / IH≤4.80;

[0008] Rp1 / Rp2≤0.80;

[0009] 1.40≤(R1+R2) / (R1-R2)≤5.80;

[0010] 0.16≤d5 / d7≤1.80.

[0011] Preferably, the camera optical lens satisfies the following relationship:

[0012] 3.99≤fA / IH≤4.60.

[0013] Preferably, the on-axis thickness of the first lens is d1, the on-axis thickness of the second lens is d3, and the following relationship is satisfied:

[0014] 0.25≤d1 / d3≤1.00.

[0015] Preferably, the focal length of the first prism is fp1, the sum of the on-axis distance from the object side surface of the first prism to the reflective surface and the on-axis distance from the reflective surface to the image side surface of the first prism is dp1, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied:

[0016] 1.01≤fp1 / fA≤10.31;

[0017] 0.320≤dp1 / TTL≤0.421.

[0018] Preferably, 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;

[0019] The focal length of the first lens is f1, the axial thickness of the first lens is d1, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied:

[0020] -2.02≤f1 / fA≤-0.62;

[0021] 0.024≤d1 / TTL≤0.069.

[0022] Preferably, the object side surface of the second lens is convex at the paraxial position, and the image side surface of the second lens is convex at the paraxial position;

[0023] 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, the axial thickness of the second lens is d3, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied:

[0024] 0.32≤f2 / fA≤0.49;

[0025] -0.28≤(R3+R4) / (R3-R4)≤0.03;

[0026] 0.056≤d3 / TTL≤0.089.

[0027] Preferably, the image side surface of the third lens is concave at the paraxial position; the focal length of the third lens is f3, the central curvature radius of the object side surface of the third lens is R5, the central curvature radius of the image side surface of the third lens is R6, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied:

[0028] -2.24≤f3 / fA≤-0.46;

[0029] -0.68≤(R5+R6) / (R5-R6)≤3.38;

[0030] 0.011≤d5 / TTL≤0.079.

[0031] Preferably, 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, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied:

[0032] 0.98≤f4 / fA≤6.75;

[0033] -4.00≤(R7+R8) / (R7-R8)≤18.99;

[0034] 0.037≤d7 / TTL≤0.075.

[0035] Preferably, 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, the axial thickness of the fifth lens is d9, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied:

[0036] -4381.09≤f5 / fA≤64.53;

[0037] -60.05≤(R9+R10) / (R9-R10)≤15.60;

[0038] 0.018≤d9 / TTL≤0.088.

[0039] Preferably, the first prism is made of glass.

[0040] The beneficial effects of the present invention are that, by specifying the ratio of the focal length to the image height of the camera optical lens, the camera optical lens has a longer focal length when the image height is fixed, which helps to improve the magnification of the camera optical lens; the first lens, the second lens and the third lens in the camera optical lens are divided into a front group, and the fourth lens and the fifth lens are divided into another group, the front group moves to focus, the process is faster and smoother during focusing, and the physical length of the lens can be maintained unchanged, which helps to allocate the internal space of the camera optical lens; by specifying the concave and convex shape of the first prism, within the conditional range, it is helpful to alleviate the degree of deflection of light entering the lens, which is helpful for subsequent smooth propagation; by reasonably controlling the surface shape of the first lens, it is helpful to reduce the sensitivity of the camera optical lens system, improve the manufacturing yield by reducing the difficulty of molding, and also reduce the stray light generated by the lens, and improve the imaging quality of the camera optical lens; by reasonably allocating the thickness of the lens, it is helpful to reduce the difficulty of assembly in the actual production process, improve the yield, and help to compress the total length of the optical system within the conditional range. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] 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:

[0042] Figure 1 is a schematic structural diagram of an imaging optical lens in a first state of a first embodiment of the present invention;

[0043] Figure 2 yes Figure 1 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0044] Figure 3 yes Figure 1 Schematic diagram of axial aberration of the camera optical lens shown;

[0045] Figure 4 yes Figure 1Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0046] Figure 5 is a schematic structural diagram of an imaging optical lens in a first state according to a second embodiment of the present invention;

[0047] Figure 6 yes Figure 5 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0048] Figure 7 yes Figure 5 Schematic diagram of axial aberration of the camera optical lens shown;

[0049] Figure 8 yes Figure 5 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0050] Fig. 9 is a schematic structural diagram of an imaging optical lens in a first state of a third embodiment of the present invention;

[0051] Fig.10 yes Fig. 9 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0052] Fig.11 yes Fig. 9 Schematic diagram of axial aberration of the camera optical lens shown;

[0053] Fig.12 yes Fig. 9 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0054] Fig.13 is a schematic structural diagram of an imaging optical lens in a first state according to a fourth embodiment of the present invention;

[0055] Fig.14 yes Fig.13 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0056] Fig.15 yes Fig.13 Schematic diagram of axial aberration of the camera optical lens shown;

[0057] Fig.16 yes Fig.13 Schematic diagram of field curvature and distortion of the camera optical lens shown.

[0058] Fig.17 is a schematic structural diagram of an imaging optical lens in a first state of a fifth embodiment of the present invention;

[0059] Fig.18 yes Fig.17 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0060] Fig.19 yes Fig.17 Schematic diagram of axial aberration of the camera optical lens shown;

[0061] Fig. 20 yes Fig.17 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0062] Fig.21 is a schematic structural diagram of an imaging optical lens in a first state of a sixth embodiment of the present invention;

[0063] Fig. 22 yes Fig.21 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0064] Fig.23 yes Fig.21 Schematic diagram of axial aberration of the camera optical lens shown;

[0065] Fig.24 yes Fig.21 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0066] Fig.25 is a schematic structural diagram of an imaging optical lens in a first state of a seventh embodiment of the present invention;

[0067] Fig.26 yes Fig.25 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0068] Fig. 27 yes Fig.25 Schematic diagram of axial aberration of the camera optical lens shown;

[0069] Fig.28 yes Fig.25 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0070] Fig.29 is a schematic structural diagram of an imaging optical lens in a first state of an eighth embodiment of the present invention;

[0071] Fig.30 yes Fig.29 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0072] Fig.31 yes Fig.29 Schematic diagram of axial aberration of the camera optical lens shown;

[0073] Fig.32 yes Fig.29 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0074] Fig.33 is a schematic structural diagram of an imaging optical lens in a first state of a ninth embodiment of the present invention;

[0075] Fig.34 yes Fig.33 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0076] Fig.35 yes Fig.33 Schematic diagram of axial aberration of the camera optical lens shown;

[0077] Fig.36 yes Fig.33 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0078] Fig.37 is a schematic structural diagram of an imaging optical lens in a first state according to a tenth embodiment of the present invention;

[0079] Fig.38 yes Fig.37 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0080] Fig.39 yes Fig.37 Schematic diagram of axial aberration of the camera optical lens shown;

[0081] Fig.40 yes Fig.37 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0082] Fig.41 is a schematic structural diagram of an imaging optical lens in a first state according to an eleventh embodiment of the present invention;

[0083] Fig.42 yes Fig.41 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0084] Fig.43 yes Fig.41 Schematic diagram of axial aberration of the camera optical lens shown;

[0085] Fig.44 yes Fig.41 Schematic diagram of field curvature and distortion of the camera optical lens shown;

[0086] Fig.45 is a schematic structural diagram of an imaging optical lens in a first state of a twelfth embodiment of the present invention;

[0087] Fig.46 yes Fig.45 Schematic diagram of magnification chromatic aberration of the camera optical lens shown;

[0088] Fig.47 yes Fig.45 Schematic diagram of axial aberration of the camera optical lens shown;

[0089] Fig.48 yes Fig.45 Schematic diagram of field curvature and distortion of the camera optical lens shown. DETAILED DESCRIPTION

[0090] 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.

[0091] With reference to the accompanying drawings, the present invention provides an imaging optical lens 10 to 120. The imaging optical lens 10 to 120 is composed of a first prism P1 with positive refractive power, a first lens L1 with negative refractive power, a second lens L2 with positive refractive power, a third lens L3 with negative refractive power, a fourth lens L4 with positive refractive power, and a fifth lens L5, which are arranged in sequence from the object side to the image side.

[0092] Specifically, the first lens and the second lens are defined as a first group, the third lens, the fourth lens and the fifth lens are defined as a second group, and the second group is capable of being moved and adjusted along the optical axis of the camera optical lens 10-120, so that the camera optical lens 10-120 can be switched between a first state and a second state; wherein the focal length of the camera optical lens 10-120 in the first state is the largest, and the focal length of the camera optical lens in the second state is the smallest, for example, the first state can be a telephoto state, or a state where the object distance is infinite; the second state can be a short focus state or a macro state, or a state where the object distance is 200mm. In this way, the camera optical lens 10-120 can be moved and focused through the second group, realizing a focusing method of focusing within the camera optical lens 10-120. The first lens L1, the second lens L2 and the third lens L3 are taken as a front group, and the fourth lens L4 and the fifth lens L5 are divided into another group. The front group moves to focus, and the focusing process is faster and smoother. At the same time, the physical length of the lens can be maintained unchanged, which is helpful for the internal space allocation of the camera optical lens.

[0093] In the present invention, the focal length of the camera optical lenses 10 to 120 in the first state is fA, the image height of the camera optical lenses 10 to 120 is IH, and the following relationship is satisfied: 3.99≤fA / IH≤4.80. By specifying the ratio of the system focal length to the image height of the camera optical lenses 10 to 120, the camera optical lenses 10 to 120 that meet the conditions have a longer focal length when the image height is fixed, which helps to improve the system magnification of the camera optical lenses 10 to 120. More preferably, 3.99≤fA / IH≤4.60.

[0094] The central curvature radius of the object side surface of the first prism P1 is Rp1, and the central curvature radius of the image side surface of the first prism P1 is Rp2, which satisfies the following relationship: Rp1 / Rp2≤0.80, which stipulates the concave-convex shape of the first prism P1. Within the range of the conditional expression, it is helpful to alleviate the degree of deflection of light entering the lens, which contributes to the subsequent smooth propagation.

[0095] The central curvature radius of the object side surface of the first lens L1 is R1, and the central curvature radius of the image side surface of the first lens L1 is R2, which satisfies the following relationship: 1.40≤(R1+R2) / (R1-R2)≤5.80; by reasonably controlling the surface shape of the first lens L1, it is beneficial to reduce the system sensitivity of the camera optical lens 10~120, improve the manufacturing yield by reducing the molding difficulty, and also reduce the stray light generated by the lens, thereby improving the lens imaging quality.

[0096] The on-axis thickness of the third lens L3 is d5, and the on-axis thickness of the fourth lens L4 is d7, and the following relationship is satisfied: 0.16≤d5 / d7≤1.80. By reasonably allocating the thickness of the lenses, it is helpful to reduce the difficulty of assembly in the actual production process and improve the yield rate.

[0097] When the above conditions are met, the camera optical lenses 10-120 have good optical performance and can meet the design requirements of large aperture, long focal length and miniaturization; according to the characteristics of the camera optical lenses 10-120, the camera optical lenses 10-120 are particularly suitable for mobile phone camera lens assemblies and WEB camera lenses composed of high-pixel CCD, CMOS and other camera elements.

[0098] Based on the above conditional expressions and the functions that can be achieved, the characteristics of each lens are further refined as follows.

[0099] In the present invention, the on-axis thickness of the first lens L1 is d1, and the on-axis thickness of the second lens L2 is d3, and the following relationship is satisfied: 0.25≤d1 / d3≤1.00. By reasonably allocating the thickness of the lenses, it is beneficial to compress the total length of the optical system, so that the camera optical lenses 10 to 120 meet the design requirements of miniaturization.

[0100] In the present invention, the object side surface of the first prism P1 is convex or flat at the near axis, and the image side surface is concave or convex or flat at the near axis. The object side surface of the first prism P1 can also be set as a concave surface.

[0101] The focal length of the first prism P1 is fp1, which satisfies the following relationship: 1.01≤fp1 / fA≤10.31. By reasonably distributing the positive focal length of the first prism P1, the system has better imaging quality and lower sensitivity.

[0102] The sum of the on-axis distance from the object side of the first prism to the reflecting surface and the on-axis distance from the reflecting surface to the image side of the first prism is dp1, and the total optical length of the camera optical lenses 10 to 120 is TTL, which satisfies the following relationship: 0.320≤dp1 / TTL≤0.421. Within the range of the conditional expression, it is conducive to miniaturization and reasonable control of the total optical length of the camera optical lenses 10 to 120.

[0103] In the present invention, the object side surface of the first lens L1 is convex at the paraxial position, and the image side surface 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.

[0104] The focal length of the first lens L1 is f1, which satisfies the following relationship: -2.02≤f1 / fA≤-0.62. By controlling the negative focal length of the first lens L1 within a reasonable range, it is beneficial to correct the aberration of the optical system.

[0105] The axial thickness of the first lens L1 is d1, and the total optical length of the camera optical lenses 10 to 120 is TTL, which satisfies the following relationship: 0.024≤d1 / TTL≤0.069. Within the range of the conditional expression, it is beneficial to reasonably control the total optical length of the camera optical lenses 10 to 120.

[0106] In the present invention, the object side surface of the second lens L2 is convex at the paraxial position, and the image side surface is convex at the paraxial position. The object side surface and the image side surface of the second lens L2 can also be set to other concave and convex distributions.

[0107] The focal length of the second lens L2 is f2, which satisfies the following relationship: 0.32≤f2 / fA≤0.49. The reasonable distribution of optical power is conducive to correcting the aberration of the optical system, so that the system has better imaging quality and lower sensitivity.

[0108] The central curvature radius of the object side surface of the second lens L2 is R3, and the central curvature radius of the image side surface of the second lens L2 is R4, which satisfies the following relationship: -0.28≤(R3+R4) / (R3-R4)≤0.03, which specifies the shape of the second lens L2 and is beneficial to the molding of the second lens L2. Within the range specified by the conditional formula, the degree of deflection of light passing through the lens can be alleviated, thereby effectively reducing aberrations.

[0109] The axial thickness of the second lens L2 is d3, and the total optical length of the camera optical lenses 10 to 120 is TTL, which satisfies the following relationship: 0.056≤d3 / TTL≤0.089. Within the range of the conditional expression, it is beneficial to reasonably control the total optical length of the camera optical lenses 10 to 120.

[0110] In this embodiment, the object side surface of the third lens L3 is a concave or convex surface at the paraxial position, and the image side surface is a concave surface at the paraxial position. The image side surface of the third lens L3 can also be set to be a convex surface.

[0111] The focal length of the third lens L3 is f3, which satisfies the following relationship: -2.24≤f3 / fA≤-0.46. Reasonable distribution of the negative focal length of the third lens L3 is helpful to correct the aberration of the optical system, so that the system has better imaging quality and lower sensitivity.

[0112] The central curvature radius of the object side surface of the third lens L3 is R5, and the central curvature radius of the image side surface of the third lens L3 is R6, and the following relationship is satisfied: -0.68≤(R5+R6) / (R5-R6)≤3.38, which specifies the shape of the third lens L3. When within the range, the degree of deflection of light passing through the lens can be alleviated, which is beneficial to correcting the aberration of the off-axis angle.

[0113] The axial thickness of the third lens L3 is d5, and the total optical length of the camera optical lenses 10 to 120 is TTL, which satisfies the following relationship: 0.011≤d5 / TTL≤0.079. Within the range of the conditional expression, it is conducive to reasonably controlling the total optical length of the camera optical lenses 10 to 120.

[0114] In this embodiment, the object-side surface of the fourth lens L4 is convex or concave at the paraxial position, and the image-side surface is convex or concave at the paraxial position.

[0115] The focal length of the fourth lens L4 is f4, which satisfies the following relationship: 0.98≤f4 / fA≤6.75. The limitation on the fourth lens L4 can effectively make the angle of the light of the camera optical lens 10-120 smooth and reduce the tolerance sensitivity.

[0116] 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: -4.00≤(R7+R8) / (R7-R8)≤18.99, which specifies the shape of the fourth lens L4. When within the range, with the development of miniaturization, it is beneficial to correct the aberration of the off-axis picture angle and other problems.

[0117] The axial thickness of the fourth lens L4 is d7, and the total optical length of the imaging optical lenses 10 to 120 is TTL, which satisfies the following relationship: 0.037≤d7 / TTL≤0.075. Within the range of the conditional expression, it is conducive to reasonably controlling the total optical length of the imaging optical lenses 10 to 120.

[0118] In this embodiment, the object-side surface of the fifth lens L5 is convex or concave at the paraxial position, the image-side surface is concave or convex at the paraxial position, and the fifth lens L5 has positive or negative refractive power.

[0119] The focal length of the fifth lens L5 is f5, which satisfies the following relationship: -4381.09≤f5 / fA≤64.53. By reasonably allocating the optical power of the fifth lens L5, the system has better imaging quality and lower sensitivity.

[0120] 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: -60.05≤(R9+R10) / (R9-R10)≤15.60, which specifies the shape of the fifth lens L5. When within the conditions, as miniaturization develops, it is beneficial to correct the aberration of the off-axis picture angle and other problems.

[0121] The axial thickness of the fifth lens L5 is d9, and the total optical length of the imaging optical lenses 10 to 120 is TTL, which satisfies the following relationship: 0.018≤d9 / TTL≤0.088. Within the range of the conditional expression, it is conducive to reasonably controlling the total optical length of the imaging optical lenses 10 to 120.

[0122] In the present invention, the first prism P1 is made of glass, the first lens L1 is made of plastic, the second lens L2 is made of plastic, the third lens L3 is made of plastic, the fourth lens L4 is made of plastic, and the fifth lens L5 is made of plastic. The first prism P1 and the lenses may also be made of other materials.

[0123] In the present invention, an optical element such as an optical filter GF may be disposed between the fifth lens L5 and the image plane Si, wherein the optical filter GF may be a glass cover plate or an optical filter.

[0124] The camera optical lenses 10 to 120 of the present invention may also be provided with an aperture S1, which is provided between the first prism P1 and the first lens L1, or between the first lens L1 and the second lens L2. The aperture S1 may also be provided at other positions.

[0125] In this embodiment, the aperture value FNO of the camera optical lens 10-120 is less than or equal to 2.39, thereby achieving a large aperture and good imaging performance of the camera optical lens. Preferably, the aperture value FNO of the camera optical lens 10 is less than or equal to 2.34.

[0126] The following examples are used to illustrate the imaging optical lens of the present invention. The symbols recorded in each example are as follows: The focal length, axial distance, central curvature radius, and axial thickness are in units of mm.

[0127] TTL: total optical length (the axial distance from the object side of the first prism P1 to the image surface Si), in mm;

[0128] Aperture value FNO: refers to the ratio of the effective focal length of the camera optical lens to the entrance pupil diameter.

[0129] Next, the technical solution of the present invention is specifically described with twelve implementation modes.

[0130] (First Embodiment)

[0131] The first prism P1 has positive refractive power, its object side surface is convex at the near axis, and its image side surface is concave at the near axis;

[0132] The first lens L1 has negative refractive power, its object side surface is convex at the paraxial position, and its image side surface is concave at the paraxial position;

[0133] The second lens L2 has positive refractive power, and its object side surface is convex at the paraxial position, and its image side surface is convex at the paraxial position;

[0134] The third lens L3 has negative refractive power, and its object side surface is concave at the paraxial position, and its image side surface is concave at the paraxial position;

[0135] The fourth lens L4 has positive refractive power, and its object side surface is convex at the paraxial position, and its image side surface is convex at the paraxial position;

[0136] The fifth lens L5 has negative refractive power, and its object-side surface is convex at the paraxial position, and its image-side surface is concave at the paraxial position.

[0137] Table 1 shows design data of the imaging optical lens 10 according to the first embodiment of the present invention.

[0138]

Table 1

[0139]

[0140]

[0141] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 5.000, "dp1-02" = 4.500.

[0142] Table 2 shows data of relevant optical parameters of the imaging optical lens 10 according to the first embodiment of the present invention in the first state and the second state.

[0143]

Table 2

[0144] In the first state In the second state f 15.911 14.862 FOV 25.00° 24.12° FNO 2.318 2.621 d4 0.254 0.827 d10 2.502 1.929

[0145] The meaning of each symbol is as follows.

[0146] S1: aperture;

[0147] R: radius of curvature at the center of the optical surface;

[0148] Rp1: the central radius of curvature of the object side surface of the first prism P1;

[0149] Rp2: the central curvature radius of the image side surface of the first prism P1;

[0150] R1: the central curvature radius of the object side of the first lens L1;

[0151] R2: the central curvature radius of the image side surface of the first lens L1;

[0152] R3: the central curvature radius of the object side surface of the second lens L2;

[0153] R4: the central curvature radius of the image side surface of the second lens L2;

[0154] R5: the central curvature radius of the object side surface of the third lens L3;

[0155] R6: the central curvature radius of the image side surface of the third lens L3;

[0156] R7: the central curvature radius of the object side surface of the fourth lens L4;

[0157] R8: the central curvature radius of the image side surface of the fourth lens L4;

[0158] R9: the central curvature radius of the object side surface of the fifth lens L5;

[0159] R10: the central curvature radius of the image side surface of the fifth lens L5;

[0160] R11: the central curvature radius of the object side of the optical filter GF;

[0161] R12: the central curvature radius of the image side of the optical filter GF;

[0162] d: the axial thickness of the lens, the axial distance between lenses;

[0163] d0: the axial distance from the aperture S1 to the object side of the first prism P1;

[0164] dp1: the sum of the on-axis distance from the object side surface of the first prism P1 to the reflecting surface and the on-axis distance from the reflecting surface to the image side surface of the first prism P1;

[0165] dp1-01: the on-axis distance from the object side surface to the reflecting surface of the first prism P1;

[0166] dp1-02: the on-axis distance from the reflection surface of the first prism P1 to the image side surface of the first prism P1;

[0167] dp2: the axial distance from the image side surface of the first prism P1 to the object side surface of the first lens L1;

[0168] d1: axial thickness of the first lens L1;

[0169] d2: the axial distance from the image side surface of the first lens L1 to the object side surface of the second lens L2;

[0170] d3: axial thickness of the second lens L2;

[0171] d3: the axial distance from the image side surface of the second lens L2 to the object side surface of the third lens L3;

[0172] d5: axial thickness of the third lens L3;

[0173] d6: the axial distance from the image side surface of the third lens L3 to the object side surface of the fourth lens L4;

[0174] d7: axial thickness of the fourth lens L4;

[0175] d8: the axial distance from the image side surface of the fourth lens L4 to the object side surface of the fifth lens L5;

[0176] d9: axial thickness of the fifth lens L5;

[0177] d10: the axial distance from the image side surface of the fifth lens L5 to the object side surface of the optical filter GF;

[0178] d11: axial thickness of the optical filter GF;

[0179] d12: the axial distance from the image side of the optical filter GF to the image surface Si;

[0180] nd: refractive index of d-line;

[0181] nd1: refractive index of the d-line of the first prism P1;

[0182] nd2: the refractive index of the first lens L1 at the d-line;

[0183] nd3: refractive index of the d-line of the second lens L2;

[0184] nd4: refractive index of the d-line of the third lens L3;

[0185] nd5: the refractive index of the d-line of the fourth lens L4;

[0186] nd6: the refractive index of the fifth lens L5 at the d-line;

[0187] ndg: refractive index of the d-line of the optical filter GF;

[0188] vd: Abbe number;

[0189] vd1: Abbe number of the first prism P1;

[0190] vd2: Abbe number of the first lens L1;

[0191] vd3: Abbe number of the second lens L2;

[0192] vd4: Abbe number of the third lens L3;

[0193] vd5: Abbe number of the fourth lens L4;

[0194] vd6: Abbe number of the fifth lens L5;

[0195] vdg: Abbe number of the optical filter GF.

[0196] Table 3 shows aspherical surface data of each lens in the imaging optical lens 10 according to the first embodiment of the present invention.

[0197]

Table 3

[0198]

[0199]

[0200] For convenience, the aspheric surface of each lens surface uses the aspheric surface shown in the following formula (1). However, the present invention is not limited to the aspheric surface polynomial form represented by the formula (1).

[0201] z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r6 +A8r 8 +A10r 10 +A12r 12 +A14r

[0202] 14 +A16r 16 +A18r 18 +A20r 20 +A22r 22 +A24r 24 +A26r 26 +A28r 28 +A30r 30

[0203] Wherein, k is the cone coefficient, A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, A30 are aspheric coefficients, c is the curvature at the center of the optical surface, r is the perpendicular distance between the point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular 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).

[0204] Figure 2 , Figure 3 Schematic diagrams showing axial aberration and magnification chromatic aberration of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm and 430 nm after passing through the imaging optical lens 10 of the first embodiment in the first state are shown respectively. Figure 4 FIG. 1 shows a schematic diagram of field curvature and distortion of light having a wavelength of 555 nm after passing through the camera optical lens 10 in the first state 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.

[0205] Table 37 that appears later shows the values ​​corresponding to the parameters specified in the conditional expressions and the various numerical values ​​in each of the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh and twelve embodiments.

[0206] As shown in Table 37, the first embodiment satisfies each conditional expression.

[0207] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 10 is 6.863 mm, the full field of view image height IH is 3.600 mm, and the field of view angle FOV in the diagonal direction is 25.00°. The camera optical lens 10 meets the design requirements of large aperture, long focal length, and miniaturization, and its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0208] (Second Embodiment)

[0209] The second embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment. Only the differences are listed below.

[0210] Different from the first embodiment, in this embodiment, the image-side surface of the first prism P1 is a plane at the paraxial position.

[0211] Figure 5 FIG. 2 shows an imaging optical lens 20 according to a second embodiment of the present invention.

[0212] Table 4 shows design data of the imaging optical lens 20 according to the second embodiment of the present invention.

[0213]

Table 4

[0214]

[0215] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 5.000, "dp1-02" = 4.500.

[0216] Table 5 shows data of relevant optical parameters of the imaging optical lens 20 in the first state and the second state according to the second embodiment of the present invention.

[0217]

Table 5

[0218] In the first state In the second state f 15.912 14.841 FOV 25.00° 24.30° FNO 2.318 2.630 d4 0.136 0.736 d10 2.502 1.902

[0219] Table 6 shows aspherical surface data of each lens in the imaging optical lens 20 according to the second embodiment of the present invention.

[0220]

Table 6

[0221]

[0222]

[0223] Figure 6 , Figure 7 Schematic diagrams showing axial aberration and chromatic aberration of magnification of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm and 430 nm after passing through the imaging optical lens 20 in the first state of the second embodiment are shown respectively. Figure 8 FIG. 4 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 555 nm after passing through the imaging optical lens 20 in the first state 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.

[0224] As shown in Table 37, the second embodiment satisfies each conditional expression.

[0225] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 20 is 6.863 mm, the full field of view image height IH is 3.600 mm, and the field of view angle FOV in the diagonal direction is 25.00°. The camera optical lens 20 meets the design requirements of long focal length, large aperture, and miniaturization, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0226] (Third Embodiment)

[0227] The third embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment, and only the differences are listed below.

[0228] Fig. 9 FIG. 1 shows an imaging optical lens 30 according to a third embodiment of the present invention.

[0229] Table 7 shows design data of the imaging optical lens 30 according to the third embodiment of the present invention.

[0230]

Table 7

[0231]

[0232] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 5.000, "dp1-02" = 4.500.

[0233] Table 8 shows data of relevant optical parameters of the imaging optical lens 30 according to the third embodiment of the present invention in the first state and the second state, respectively.

[0234]

Table 8

[0235] In the first state In the second state f 16.540 15.420 FOV 24.56° 23.89° FNO 2.318 2.618 d4 0.030 0.612 d10 2.502 1.920

[0236] Table 9 shows aspherical surface data of each lens in the imaging optical lens 30 according to the third embodiment of the present invention.

[0237]

Table 9

[0238]

[0239]

[0240] Fig.10 , Fig.11 Schematic diagrams showing axial aberration and chromatic aberration of magnification of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm and 430 nm after passing through the imaging optical lens 30 in the first state of the third embodiment are shown respectively. Fig.12FIG. 4 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 555 nm after passing through the imaging optical lens 30 in the first state according to 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.

[0241] As shown in Table 37, the third embodiment satisfies each conditional expression.

[0242] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 30 is 7.134 mm, the full field of view image height IH is 3.600 mm, and the field of view angle FOV in the diagonal direction is 24.56°. The camera optical lens 30 meets the design requirements of long focal length, large aperture, and miniaturization, and its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0243] (Fourth Embodiment)

[0244] The fourth embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment, and only the differences are listed below.

[0245] Different from the first embodiment, in this embodiment, the object side surface of the first prism P1 is a plane at the paraxial position, the image side surface of the first prism P1 is a convex surface at the paraxial position, the object side surface of the third lens L3 is a convex surface at the paraxial position, the object side surface of the fourth lens L4 is a concave surface at the paraxial position, the object side surface of the fifth lens L5 is a concave surface at the paraxial position, and the image side surface of the fifth lens L5 is a convex surface at the paraxial position.

[0246] Fig.13 FIG. 4 shows an imaging optical lens 40 according to a fourth embodiment of the present invention.

[0247] Table 10 shows design data of the imaging optical lens 40 according to the fourth embodiment of the present invention.

[0248]

Table 10

[0249]

[0250] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 5.000, "dp1-02" = 4.500.

[0251] Table 11 shows data on relevant optical parameters of the imaging optical lens 40 according to the fourth embodiment of the present invention in the first state and the second state.

[0252]

Table 11

[0253] In the first state In the second state f 14.396 13.681 FOV 27.99° 25.85° FNO 1.983 2.354 d4 0.030 0.640 d10 1.768 1.158

[0254] Table 12 shows aspherical surface data of each lens in the imaging optical lens 40 according to the fourth embodiment of the present invention.

[0255]

Table 12

[0256]

[0257]

[0258] In the fourth embodiment, the aspherical surface of each lens surface of the imaging optical lens 40 is an aspherical surface represented by the following formula (2).

[0259] z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A1

[0260] 4r 14 +A16r 16 +A18r 18 +A20r 20 (2)

[0261] Wherein, 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 perpendicular distance between the point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular 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).

[0262] Fig.14 , Fig.15 Schematic diagrams showing axial aberration and chromatic aberration of magnification of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm and 430 nm after passing through the imaging optical lens 40 in the first state of the third embodiment are shown respectively. Fig.16 FIG. 4 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 555 nm after passing through the imaging optical lens 40 in the first state according to the fourth 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.

[0263] As shown in Table 37, the fourth embodiment satisfies each conditional expression.

[0264] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 40 is 7.259 mm, the full field of view image height IH is 3.600 mm, and the field of view angle FOV in the diagonal direction is 27.99°. The camera optical lens 40 meets the design requirements of long focal length, large aperture, and miniaturization, and its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0265] (Fifth Embodiment)

[0266] The fifth embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment, and only the differences are listed below.

[0267] Different from the first embodiment, in this embodiment, the object-side surface of the fifth lens L5 is a concave surface at the paraxial position, and the image-side surface of the fifth lens L5 is a convex surface at the paraxial position.

[0268] Fig.17 FIG. 1 shows an imaging optical lens 50 according to a fifth embodiment of the present invention.

[0269] Table 13 shows design data of the imaging optical lens 50 according to the fifth embodiment of the present invention.

[0270]

Table 13

[0271]

[0272] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 5.000, "dp1-02" = 4.500.

[0273] Table 14 shows data on relevant optical parameters of the imaging optical lens 50 according to the fifth embodiment of the present invention in the first state and the second state, respectively.

[0274]

Table 14

[0275] In the first state In the second state f 16.560 15.610 FOV 24.31° 23.80° FNO 2.318 2.610 d4 0.504 1.125 d10 2.502 1.881

[0276] Table 15 shows aspherical surface data of each lens in the imaging optical lens 50 according to the fifth embodiment of the present invention.

[0277]

Table 15

[0278]

[0279] Fig.18 , Fig.19 Schematic diagrams showing axial aberration and chromatic aberration of magnification of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm and 430 nm after passing through the imaging optical lens 50 in the first state of the fifth embodiment are shown respectively. Fig. 20 FIG. 4 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 555 nm after passing through the imaging optical lens 50 in the first state 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.

[0280] As shown in Table 37, the fifth embodiment satisfies each conditional expression.

[0281] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 50 is 7.143 mm, the full field of view image height IH is 3.600 mm, and the field of view angle FOV in the diagonal direction is 24.31°. The camera optical lens 50 meets the design requirements of long focal length, large aperture, and miniaturization, and its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0282] (Sixth Embodiment)

[0283] The sixth embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment. Only the differences are listed below.

[0284] Different from the first embodiment, in this embodiment, the image side surface of the fourth lens L4 is concave at the paraxial position, 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 convex at the paraxial position; the fifth lens L5 has positive refractive power.

[0285] Fig.21 FIG. 1 shows an imaging optical lens 60 according to a sixth embodiment of the present invention.

[0286] Table 16 shows design data of the imaging optical lens 60 according to the sixth embodiment of the present invention.

[0287]

Table 16

[0288]

[0289]

[0290] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 5.000, "dp1-02" = 4.500.

[0291] Table 17 shows data on relevant optical parameters of the imaging optical lens 60 according to the sixth embodiment of the present invention in the first state and the second state.

[0292]

Table 17

[0293] In the first state In the second state f 14.689 13.890 FOV 26.99° 26.02° FNO 2.318 2.611 d4 1.518 2.011 d10 2.502 2.009

[0294] Table 18 shows aspherical surface data of each lens in the imaging optical lens 60 according to the sixth embodiment of the present invention.

[0295]

Table 18

[0296]

[0297]

[0298] Fig. 22 , Fig.23 Schematic diagrams showing axial aberration and chromatic aberration of magnification of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm and 430 nm after passing through the imaging optical lens 60 in the first state of the sixth embodiment are shown respectively. Fig.24 FIG. 4 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 555 nm after passing through the imaging optical lens 60 in the first state according to 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.

[0299] As shown in Table 37, the sixth embodiment satisfies each conditional expression.

[0300] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 60 is 6.336 mm, the full field of view image height IH is 3.600 mm, and the field of view angle FOV in the diagonal direction is 26.99°. The camera optical lens 60 meets the design requirements of long focal length, large aperture, and miniaturization, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0301] (Seventh Embodiment)

[0302] The seventh embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment, and only the differences are listed below.

[0303] Different from the first embodiment, in this embodiment, the image side surface of the first prism P1 is a plane at the paraxial position, the object side surface of the third lens L3 is a convex surface at the paraxial position, the image side surface of the fourth lens L4 is a concave surface at the paraxial position, and the object side surface of the fifth lens L5 is a concave surface at the paraxial position.

[0304] Fig.25 FIG. 1 shows an imaging optical lens 70 according to a seventh embodiment of the present invention.

[0305] Table 19 shows design data of the imaging optical lens 70 according to the seventh embodiment of the present invention.

[0306]

Table 19

[0307]

[0308] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 5.000, "dp1-02" = 4.500.

[0309] Table 20 shows data on relevant optical parameters of the imaging optical lens 70 according to the seventh embodiment of the present invention in the first state and the second state, respectively.

[0310]

Table 20

[0311] In the first state In the second state f 14.472 13.761 FOV 27.60° 26.85° FNO 1.983 2.340 d4 0.595 1.192 d10 1.719 1.122

[0312] Table 21 shows aspherical surface data of each lens in the imaging optical lens 70 according to the seventh embodiment of the present invention.

[0313]

Table 21

[0314]

[0315] In the seventh embodiment, the aspherical surface of each lens surface of the imaging optical lens 70 uses an aspherical surface represented by the following formula (2).

[0316] z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A1

[0317] 4r 14 +A16r 16 +A18r 18 +A20r 20 (2)

[0318] Wherein, 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 perpendicular distance between the point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular 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).

[0319] Fig.26 , Fig. 27 Schematic diagrams showing axial aberration and chromatic aberration of magnification of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm and 430 nm after passing through the imaging optical lens 70 in the first state of the seventh embodiment are shown respectively. Fig.28 FIG. 4 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 555 nm after passing through the imaging optical lens 70 in the first state 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.

[0320] As shown in Table 37, the seventh embodiment satisfies each conditional expression.

[0321] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 70 is 7.297 mm, the full field of view image height IH is 3.600 mm, and the field of view angle FOV in the diagonal direction is 27.60°. The camera optical lens 70 meets the design requirements of long focal length, large aperture, and miniaturization, and its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0322] (Eighth Embodiment)

[0323] The eighth embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment. Only the differences are listed below.

[0324] Different from the first embodiment, in this embodiment, the image side surface of the first prism P1 is convex at the paraxial position, the object side surface of the third lens L3 is convex at the paraxial position, the image side surface of the fourth lens L4 is concave at the paraxial position, 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 convex at the paraxial position.

[0325] Fig.29 FIG. 8 shows an imaging optical lens 80 according to an eighth embodiment of the present invention.

[0326] Table 22 shows design data of the imaging optical lens 80 according to the eighth embodiment of the present invention.

[0327]

Table 22

[0328]

[0329]

[0330] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 5.000, "dp1-02" = 4.500.

[0331] Table 23 shows data on relevant optical parameters of the imaging optical lens 80 according to the eighth embodiment of the present invention in the first state and the second state, respectively.

[0332]

Table 23

[0333] In the first state In the second state f 14.396 13.711 FOV 28.05° 27.20° FNO 1.983 2.354 d4 0.030 0.637 d10 1.419 0.812

[0334] Table 24 shows aspherical surface data of each lens in the imaging optical lens 80 according to the eighth embodiment of the present invention.

[0335]

Table 24

[0336]

[0337]

[0338] In the eighth embodiment, the aspherical surface of each lens surface of the imaging optical lens 80 is an aspherical surface represented by the following formula (2).

[0339] z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A1

[0340] 4r 14 +A16r 16 +A18r 18 +A20r 20 (2)

[0341] Wherein, 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 perpendicular distance between the point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular 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).

[0342] Fig.30 , Fig.31 Schematic diagrams showing axial aberration and chromatic aberration of magnification of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm and 430 nm after passing through the imaging optical lens 80 in the first state of the eighth embodiment are shown respectively. Fig.32 FIG. 4 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 555 nm after passing through the imaging optical lens 80 in the first state of the eighth 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.

[0343] As shown in Table 37, the eighth embodiment satisfies each conditional expression.

[0344] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 80 is 7.259 mm, the full field of view image height IH is 3.600 mm, and the field of view angle FOV in the diagonal direction is 28.05°. The camera optical lens 80 meets the design requirements of long focal length, large aperture, and miniaturization, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0345] (Ninth Embodiment)

[0346] The ninth embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment, and only the differences are listed below.

[0347] Different from the first embodiment, in this embodiment, the image side surface of the first prism P1 is convex at the paraxial position, the object side surface of the third lens L3 is convex at the paraxial position, the image side surface of the fourth lens L4 is concave at the paraxial position, 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 convex at the paraxial position.

[0348] Fig.33 FIG. 1 shows an imaging optical lens 90 according to a ninth embodiment of the present invention.

[0349] Table 25 shows design data of the imaging optical lens 90 according to the ninth embodiment of the present invention.

[0350]

Table 25

[0351]

[0352] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 5.000, "dp1-02" = 4.500.

[0353] Table 26 shows data on relevant optical parameters of the imaging optical lens 90 according to the ninth embodiment of the present invention in the first state and the second state, respectively.

[0354]

Table 26

[0355] In the first state In the second state f 14.396 13.820 FOV 28.05° 27.91° FNO 1.983 2.356 d4 0.778 1.256 d10 1.357 0.879

[0356] Table 27 shows aspherical surface data of each lens in the imaging optical lens 90 according to the ninth embodiment of the present invention.

[0357]

Table 27

[0358]

[0359] In the ninth embodiment, the aspherical surface of each lens surface of the imaging optical lens 90 is an aspherical surface represented by the following formula (2).

[0360] z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A1

[0361] 4r 14 +A16r 16 +A18r 18 +A20r 20 (2)

[0362] Wherein, 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 perpendicular distance between the point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular 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).

[0363] Fig.34 , Fig.35 Schematic diagrams showing axial aberration and chromatic aberration of magnification of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm and 430 nm after passing through the imaging optical lens 90 in the first state of the ninth embodiment are shown respectively. Fig.36 FIG. 4 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 555 nm after passing through the imaging optical lens 90 in the first state of the ninth embodiment. Fig.36 The field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0364] As shown in Table 37, the ninth embodiment satisfies each conditional expression.

[0365] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 90 is 7.259 mm, the full field of view image height IH is 3.600 mm, and the field of view angle FOV in the diagonal direction is 28.05°. The camera optical lens 90 meets the design requirements of long focal length, large aperture, and miniaturization, and its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0366] (Tenth Embodiment)

[0367] The tenth embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment, and only the differences are listed below.

[0368] Different from the first embodiment, in this embodiment, the image side surface of the first prism P1 is convex at the paraxial position, the object side surface of the third lens L3 is convex at the paraxial position, the image side surface of the fourth lens L4 is concave at the paraxial position, 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 convex at the paraxial position.

[0369] Fig.37 FIG. 1 shows an imaging optical lens 100 according to a tenth embodiment of the present invention.

[0370] Table 28 shows design data of the imaging optical lens 100 according to the tenth embodiment of the present invention.

[0371]

Table 28

[0372]

[0373] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 5.000, "dp1-02" = 4.500.

[0374] Table 29 shows data on relevant optical parameters of the imaging optical lens 100 according to the tenth embodiment of the present invention in the first state and the second state.

[0375]

Table 29

[0376] In the first state In the second state f 14.396 13.640 FOV 28.00° 27.96° FNO 1.983 2.348 d4 0.814 1.442 d10 1.539 0.911

[0377] Table 30 shows aspherical surface data of each lens in the imaging optical lens 100 according to the tenth embodiment of the present invention.

[0378]

Table 30

[0379]

[0380]

[0381] In the tenth embodiment, the aspherical surface of each lens surface of the imaging optical lens 100 uses the aspherical surface represented by the following formula (2).

[0382] z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A1

[0383] 4r 14+A16r 16 +A18r 18 +A20r 20 (2)

[0384] Wherein, 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 perpendicular distance between the point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular 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).

[0385] Fig.38 , Fig.39 Schematic diagrams showing axial aberration and chromatic aberration of magnification of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm and 430 nm after passing through the imaging optical lens 100 in the first state according to the tenth embodiment are shown respectively. Fig.40 FIG. 4 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 555 nm after passing through the imaging optical lens 100 in the first state according to the tenth embodiment. Fig.40 The field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0386] As shown in Table 37, the tenth embodiment satisfies each conditional expression.

[0387] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 100 is 7.259 mm, the full field of view image height IH is 3.600 mm, and the field of view angle FOV in the diagonal direction is 28.00°. The camera optical lens 100 meets the design requirements of long focal length, large aperture, and miniaturization, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0388] (Eleventh Embodiment)

[0389] The eleventh embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment, and only the differences are listed below.

[0390] Different from the first embodiment, in this embodiment, the image side surface of the first prism P1 is convex at the paraxial position, the object side surface of the third lens L3 is convex at the paraxial position, the image side surface of the fourth lens L4 is concave at the paraxial position, 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 convex at the paraxial position.

[0391] Fig.41 FIG. 1 shows an imaging optical lens 110 according to an eleventh embodiment of the present invention.

[0392] Table 31 shows design data of the imaging optical lens 110 according to the eleventh embodiment of the present invention.

[0393]

Table 31

[0394]

[0395]

[0396] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 5.000, "dp1-02" = 4.500.

[0397] Table 32 shows data on relevant optical parameters of the imaging optical lens 110 according to the eleventh embodiment of the present invention in the first state and the second state.

[0398]

Table 32

[0399] In the first state In the second state f 14.396 13.815 FOV 28.04° 27.92° FNO 1.983 2.347 d4 0.030 0.601 d10 1.589 1.018

[0400] Table 33 shows aspherical surface data of each lens in the imaging optical lens 110 according to the eleventh embodiment of the present invention.

[0401]

Table 33

[0402]

[0403]

[0404] In the eleventh embodiment, the aspherical surface of each lens surface of the imaging optical lens 110 uses an aspherical surface represented by the following formula (2).

[0405] z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A1

[0406] 4r 14 +A16r 16 +A18r 18 +A20r 20 (2)

[0407] Wherein, 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 perpendicular distance between the point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular 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).

[0408] Fig.42 , Fig.43 Schematic diagrams showing axial aberration and chromatic aberration of magnification of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm and 430 nm after passing through the imaging optical lens 110 in the first state of the eleventh embodiment are shown respectively. Fig.44 FIG. 4 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 555 nm after passing through the imaging optical lens 110 in the first state according to the eleventh embodiment. Fig.44 The field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0409] As shown in Table 37, the eleventh embodiment satisfies each conditional expression.

[0410] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 110 is 7.259 mm, the full field of view image height IH is 3.600 mm, and the field of view angle FOV in the diagonal direction is 28.04°. The camera optical lens 110 meets the design requirements of long focal length, large aperture, and miniaturization, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0411] (Twelfth Embodiment)

[0412] The twelfth embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those of the first embodiment, and only the differences are listed below.

[0413] Different from the first embodiment, in this embodiment, the image side surface of the first prism P1 is convex at the paraxial position, the object side surface of the third lens L3 is convex at the paraxial position, the image side surface of the fourth lens L4 is concave at the paraxial position, 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 convex at the paraxial position.

[0414] Fig.45 FIG. 1 shows an imaging optical lens 120 according to a twelfth embodiment of the present invention.

[0415] Table 34 shows design data of the imaging optical lens 120 according to the twelfth embodiment of the present invention.

[0416]

Table 34

[0417]

[0418] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 5.000, "dp1-02" = 4.500.

[0419] Table 35 shows data of relevant optical parameters of the imaging optical lens 120 according to the twelfth embodiment of the present invention in the first state and the second state respectively.

[0420]

Table 35

[0421]

[0422]

[0423] Table 36 shows the aspherical surface data of each lens in the imaging optical lens 120 according to the twelfth embodiment of the present invention.

[0424]

Table 36

[0425]

[0426] In the twelfth embodiment, the aspherical surface of each lens surface of the imaging optical lens 120 uses the aspherical surface represented by the following formula (2).

[0427] z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A1

[0428] 4r 14 +A16r 16 +A18r 18 +A20r 20 (2)

[0429] Wherein, 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 perpendicular distance between the point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular 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).

[0430] Fig.46 , Fig.47Schematic diagrams showing axial aberration and chromatic aberration of magnification of light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm and 430 nm after passing through the imaging optical lens 120 in the first state of the twelfth embodiment are shown respectively. Fig.48 FIG. 4 is a schematic diagram showing the field curvature and distortion of light having a wavelength of 555 nm after passing through the imaging optical lens 120 in the first state according to the twelfth embodiment. Fig.48 The field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0431] As shown in Table 37, the twelfth embodiment satisfies each conditional expression.

[0432] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 120 is 7.259 mm, the full field of view image height IH is 3.600 mm, and the field of view angle FOV in the diagonal direction is 28.05°. The camera optical lens 120 meets the design requirements of long focal length, large aperture, and miniaturization, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0433]

Table 37

[0434]

[0435]

[0436] 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 is composed of a first prism with positive refractive power, a first lens with negative refractive power, a second lens with positive refractive power, a third lens with negative refractive power, a fourth lens with positive refractive power and a fifth lens, which are arranged in sequence from the object side to the image side; The first lens and the second lens are defined as a first group, the third lens, the fourth lens and the fifth lens are defined as a second group, and the second group is movable and adjustable along the optical axis of the camera optical lens, so that the camera optical lens switches between a first state and a second state; wherein the focal length of the camera optical lens in the first state is the largest, and the focal length of the camera optical lens in the second state is the smallest; A reflecting surface is provided between the object side surface and the image side surface of the first prism; the focal length of the camera optical lens in the first state is fA, the image height of the camera optical lens is IH, the central curvature radius of the object side surface of the first prism is Rp1, the central curvature radius of the image side surface of the first prism is Rp2, the central curvature radius of the object side surface of the first lens is R1, the central curvature radius of the image side surface of the first lens is R2, the axial thickness of the third lens is d5, the axial thickness of the fourth lens is d7, and the following relationship is satisfied: 3.99≤fA / IH≤4.80; Rp1 / Rp2≤0.80; 1.40≤(R1+R2) / (R1-R2)≤5.80; 0.16≤d5 / d7≤1.

80.

2. The imaging optical lens according to claim 1, characterized in that: The camera optical lens satisfies the following relationship: 3.99≤fA / IH≤4.

60.

3. The imaging optical lens according to claim 1, characterized in that: The on-axis thickness of the first lens is d1, the on-axis thickness of the second lens is d3, and the following relationship is satisfied: 0.25≤d1 / d3≤1.

00.

4. The imaging optical lens according to claim 1, wherein: The focal length of the first prism is fp1, the sum of the on-axis distance from the object side of the first prism to the reflective surface and the on-axis distance from the reflective surface to the image side of the first prism is dp1, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: 1.01≤fp1 / fA≤10.31; 0.320≤dp1 / TTL≤0.

421.

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 axial thickness of the first lens is d1, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: -2.02≤f1 / fA≤-0.62; 0.024≤d1 / TTL≤0.

069.

6. The imaging optical lens according to claim 1, characterized in that: The object side surface of the second lens is convex 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, the axial thickness of the second lens is d3, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: 0.32≤f2 / fA≤0.49; -0.28≤(R3+R4) / (R3-R4)≤0.03; 0.056≤d3 / TTL≤0.

089.

7. The imaging optical lens according to claim 1, characterized in that: The image side surface of the third lens is concave at the paraxial position; the focal length of the third lens is f3, the central curvature radius of the object side surface of the third lens is R5, the central curvature radius of the image side surface of the third lens is R6, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: -2.24≤f3 / fA≤-0.46; -0.68≤(R5+R6) / (R5-R6)≤3.38; 0.011≤d5 / TTL≤0.

079.

8. The imaging optical lens according to claim 1, characterized in that: 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, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: 0.98≤f4 / fA≤6.75; -4.00≤(R7+R8) / (R7-R8)≤18.99; 0.037≤d7 / TTL≤0.

075.

9. The imaging optical lens according to claim 1, characterized in that: 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, the axial thickness of the fifth lens is d9, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: -4381.09≤f5 / fA≤64.53; -60.05≤(R9+R10) / (R9-R10)≤15.60; 0.018≤d9 / TTL≤0.

088.

10. The imaging optical lens according to claim 1, wherein: The first prism is made of glass.

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