Camera optical lens

Abstract

The present invention relates to the field of optical lenses. Disclosed is a camera optical lens. The camera optical lens is composed of, sequentially from an object side to an image side, a first prism having positive refractive power, a first lens having negative refractive power, a second lens having positive refractive power, a third lens having negative refractive power, a fourth lens having positive refractive power, and a fifth lens, wherein the focal length of the camera optical lens is fA, the image height of the camera optical lens is IH, the central radius of curvature of the object side surface of the first prism is Rp1, the central radius of curvature of the image side surface of the first prism is Rp2, the central radius of curvature of the object side surface of the first lens is R1, the central radius of curvature of the image side surface of the first lens is R2, the on-axis thickness of the third lens is d5, the on-axis thickness of the fourth lens is d7, and the following relational expressions are 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.

Description

Camera optical lens Technical Field

[0001] This invention relates to the field of optical lenses, and in particular to a camera optical lens suitable for handheld terminal devices such as smartphones and digital cameras, as well as camera devices such as monitors and PC lenses. Background Technology

[0002] In recent years, with the rise of various smart devices, the demand for miniaturized camera lenses has been increasing. Furthermore, due to the shrinking pixel size of image sensors and the current trend of electronic products towards high functionality and lightweight portability, miniaturized camera lenses with good image quality have become the mainstream in the market. To achieve better image quality, multi-element lens structures are often used. Among them, internally focusing camera lenses are gradually being developed and applied to mobile phone cameras due to their high stability, rapid zoom, good cleanability, and ability to overcome the wear and tear of externally focusing lenses.

[0003] Furthermore, telephoto cameras can meet consumers' needs for shooting specific targets. Traditional telephoto cameras have an excessively large overall optical length, which does not meet the design requirements of slim and lightweight smartphones. Periscope telephoto camera designs, on the other hand, can significantly shorten the overall optical length of the camera lens while still meeting the telephoto design requirements. However, the optical performance of existing periscope telephoto camera lenses still cannot meet the demands. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a camera optical lens that possesses excellent optical performance while meeting the design requirements of long focal length, miniaturization, and large aperture. To solve the above technical problems, the present invention provides a camera optical lens comprising, from the object side to the image side, 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;

[0005] The first lens and the second lens are defined as a first group, and the third lens, the fourth lens and the fifth lens are defined as a second group. The second group is configured to be movable and adjustable along the optical axis of the camera lens, so that the camera lens can switch between a first state and a second state. The camera lens has the largest focal length in the first state and the smallest focal length in the second state.

[0006] The first prism has a reflective surface between its object-side surface and its image-side surface; the focal length of the camera lens in the first state is fA, the image height of the camera lens is IH, the central radius of curvature of the object-side surface of the first prism is Rp1, the central radius of curvature of the image-side surface of the first prism is Rp2, the central radius of curvature of the object-side surface of the first lens is R1, the central radius of curvature of the image-side surface of the first lens is R2, the axial thickness of the third lens is d5, and the axial thickness of the fourth lens is d7, and the following relationships are 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.

[0007] Preferably, the camera optical lens satisfies the following relationship: 3.99≤fA / IH≤4.60.

[0008] 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: 0.25≤d1 / d3≤1.00.

[0009] Preferably, the focal length of the first prism is fp1, the sum of the axial distance from the object side of the first prism to the reflecting surface and the axial distance from the reflecting surface to the image side of the first prism is dp1, the total optical length of the camera lens is TTL, and satisfies the following relationships: 1.01≤fp1 / fA≤10.31; 0.320≤dp1 / TTL≤0.421.

[0010] 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.

[0011] The focal length of the first lens is f1, the on-axis thickness of the first lens is d1, and the total optical length of the camera lens is TTL, and the following relationships are satisfied: -2.02≤f1 / fA≤-0.62; 0.024≤d1 / TTL≤0.069.

[0012] 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.

[0013] The focal length of the second lens is f2, the central radius of curvature of the object side of the second lens is R3, the central radius of curvature of the image side of the second lens is R4, the axial thickness of the second lens is d3, and the total optical length of the camera lens is TTL, and satisfies the following relationships: 0.32≤f2 / fA≤0.49; -0.28≤(R3+R4) / (R3-R4)≤0.03; 0.056≤d3 / TTL≤0.089.

[0014] 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 radius of curvature of the object-side surface of the third lens is R5, the central radius of curvature of the image-side surface of the third lens is R6, and the total optical length of the camera lens is TTL, and satisfies the following relationships: -2.24≤f3 / fA≤-0.46; -0.68≤(R5+R6) / (R5-R6)≤3.38; 0.011≤d5 / TTL≤0.079.

[0015] Preferably, the focal length of the fourth lens is f4, the central radius of curvature of the object side of the fourth lens is R7, the central radius of curvature of the image side of the fourth lens is R8, and the total optical length of the camera lens is TTL, and satisfies the following relationships: 0.98≤f4 / fA≤6.75; -4.00≤(R7+R8) / (R7-R8)≤18.99; 0.037≤d7 / TTL≤0.075.

[0016] Preferably, the focal length of the fifth lens is f5, the central radius of curvature of the object side of the fifth lens is R9, the central radius of curvature of the image side of the fifth lens is R10, the axial thickness of the fifth lens is d9, and the total optical length of the camera lens is TTL, and satisfies the following relationships: -4381.09≤f5 / fA≤64.53; -60.05≤(R9+R10) / (R9-R10)≤15.60; 0.018≤d9 / TTL≤0.088.

[0017] Preferably, the first prism is made of glass.

[0018] The beneficial effects of this invention are as follows: by specifying the ratio of focal length to image height of the camera optical lens, a longer focal length is achieved with a fixed image height, which helps to improve the magnification of the camera optical lens; dividing the first, second, and third lenses in the camera optical lens into a front group and the fourth and fifth lenses into another group, the front group moves to focus, resulting in a faster and smoother focusing process, while the physical length of the lens can remain unchanged, which helps with the internal space allocation of the camera optical lens; by specifying the concave and convex shape of the first prism, within the conditional range, it helps to mitigate the degree of light deflection entering the lens, which helps to ensure smooth subsequent propagation; by reasonably controlling the surface shape of the first lens, it helps to reduce the sensitivity of the camera optical lens system, improve manufacturing yield by reducing molding difficulty, and also reduce stray light generated by the lens, thereby improving the image quality of the camera optical lens; by reasonably allocating the thickness of the lenses, it helps to reduce the assembly difficulty in the actual production process, improve the yield, and within the conditional range, it helps to compress the overall length of the optical system. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. 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 effort, wherein:

[0020] Figure 1 is a schematic diagram of the structure of the camera optical lens in the first state of the first embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of the magnification chromatic aberration of the camera optical lens shown in Figure 1;

[0022] Figure 3 is a schematic diagram of the axial aberration of the camera optical lens shown in Figure 1;

[0023] Figure 4 is a schematic diagram of the field curvature and distortion of the camera optical lens shown in Figure 1;

[0024] Figure 5 is a schematic diagram of the structure of the camera optical lens in the first state of the second embodiment of the present invention;

[0025] Figure 6 is a schematic diagram of the magnification chromatic aberration of the camera optical lens shown in Figure 5;

[0026] Figure 7 is a schematic diagram of the axial aberration of the camera optical lens shown in Figure 5;

[0027] Figure 8 is a schematic diagram of the field curvature and distortion of the camera optical lens shown in Figure 5;

[0028] Figure 9 is a schematic diagram of the structure of the camera optical lens in the first state of the third embodiment of the present invention;

[0029] Figure 10 is a schematic diagram of the magnification chromatic aberration of the camera optical lens shown in Figure 9;

[0030] Figure 11 is a schematic diagram of the axial aberration of the camera optical lens shown in Figure 9;

[0031] Figure 12 is a schematic diagram of the field curvature and distortion of the camera optical lens shown in Figure 9;

[0032] Figure 13 is a schematic diagram of the structure of the camera optical lens in the first state of the fourth embodiment of the present invention;

[0033] Figure 14 is a schematic diagram of the magnification chromatic aberration of the camera optical lens shown in Figure 13;

[0034] Figure 15 is a schematic diagram of the axial aberration of the camera optical lens shown in Figure 13;

[0035] Figure 16 is a schematic diagram of the field curvature and distortion of the camera optical lens shown in Figure 13.

[0036] Figure 17 is a schematic diagram of the structure of the camera optical lens in the first state of the fifth embodiment of the present invention;

[0037] Figure 18 is a schematic diagram of the magnification chromatic aberration of the camera optical lens shown in Figure 17;

[0038] Figure 19 is a schematic diagram of the axial aberration of the camera optical lens shown in Figure 17;

[0039] Figure 20 is a schematic diagram of the field curvature and distortion of the camera optical lens shown in Figure 17;

[0040] Figure 21 is a schematic diagram of the structure of the camera optical lens in the first state of the sixth embodiment of the present invention;

[0041] Figure 22 is a schematic diagram of the magnification chromatic aberration of the camera optical lens shown in Figure 21;

[0042] Figure 23 is a schematic diagram of the axial aberration of the camera optical lens shown in Figure 21;

[0043] Figure 24 is a schematic diagram of the field curvature and distortion of the camera optical lens shown in Figure 21;

[0044] Figure 25 is a schematic diagram of the structure of the camera optical lens in the first state of the seventh embodiment of the present invention;

[0045] Figure 26 is a schematic diagram of the magnification chromatic aberration of the camera optical lens shown in Figure 25;

[0046] Figure 27 is a schematic diagram of the axial aberration of the camera optical lens shown in Figure 25;

[0047] Figure 28 is a schematic diagram of the field curvature and distortion of the camera optical lens shown in Figure 25;

[0048] Figure 29 is a schematic diagram of the structure of the camera optical lens in the first state of the eighth embodiment of the present invention;

[0049] Figure 30 is a schematic diagram of the magnification chromatic aberration of the camera optical lens shown in Figure 29;

[0050] Figure 31 is a schematic diagram of the axial aberration of the camera optical lens shown in Figure 29;

[0051] Figure 32 is a schematic diagram of the field curvature and distortion of the camera optical lens shown in Figure 29;

[0052] Figure 33 is a schematic diagram of the structure of the camera optical lens in the first state of the ninth embodiment of the present invention;

[0053] Figure 34 is a schematic diagram of the magnification chromatic aberration of the camera optical lens shown in Figure 33;

[0054] Figure 35 is a schematic diagram of the axial aberration of the camera optical lens shown in Figure 33;

[0055] Figure 36 is a schematic diagram of the field curvature and distortion of the camera optical lens shown in Figure 33;

[0056] Figure 37 is a schematic diagram of the structure of the camera optical lens in the first state of the tenth embodiment of the present invention;

[0057] Figure 38 is a schematic diagram of the magnification chromatic aberration of the camera optical lens shown in Figure 37;

[0058] Figure 39 is a schematic diagram of the axial aberration of the camera optical lens shown in Figure 37;

[0059] Figure 40 is a schematic diagram of the field curvature and distortion of the camera optical lens shown in Figure 37;

[0060] Figure 41 is a schematic diagram of the structure of the camera optical lens in the first state of the eleventh embodiment of the present invention;

[0061] Figure 42 is a schematic diagram of the magnification chromatic aberration of the camera optical lens shown in Figure 41;

[0062] Figure 43 is a schematic diagram of the axial aberration of the camera optical lens shown in Figure 41;

[0063] Figure 44 is a schematic diagram of the field curvature and distortion of the camera optical lens shown in Figure 41;

[0064] Figure 45 is a schematic diagram of the structure of the camera optical lens in the first state of the twelfth embodiment of the present invention;

[0065] Figure 46 is a schematic diagram of the magnification chromatic aberration of the camera optical lens shown in Figure 45;

[0066] Figure 47 is a schematic diagram of the axial aberration of the camera optical lens shown in Figure 45;

[0067] Figure 48 is a schematic diagram of the field curvature and distortion of the camera optical lens shown in Figure 45. Detailed Implementation

[0068] To make the objectives, technical solutions, and advantages of this invention clearer, the various embodiments of this invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this invention to facilitate a better understanding of the invention. However, the technical solutions claimed in this invention can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0069] Referring to the accompanying drawings, the present invention provides a camera optical lens 10-120. The camera optical lens 10-120 comprises, from the object side to the image side, 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, arranged sequentially from the object side to the image side.

[0070] Specifically, the first lens and the second lens are defined as a first group, and the third lens, the fourth lens, and the fifth lens are defined as a second group. The second group is adjustable and movable along the optical axis of the imaging optical lenses 10-120, allowing the imaging optical lenses 10-120 to switch between a first state and a second state. The imaging optical lenses 10-120 have the largest focal length in the first state and the smallest focal length in the second state. For example, the first state can be a telephoto state or a state with an infinity object distance; the second state can be a short focal length state, a macro state, or a state with an object distance of 200mm. In this way, the imaging optical lenses 10-120 can focus by moving the second group, achieving a focusing mode within the imaging optical lenses 10-120. The first lens L1, the second lens L2, and the third lens L3 are grouped into a front group, while the fourth lens L4 and the fifth lens L5 are grouped into another group. The front group moves to focus, making the focusing process faster and smoother, while the physical length of the lens can remain unchanged, which helps with the internal space allocation of the camera optical lens.

[0071] In this invention, the focal length of the imaging optical lenses 10-120 in the first state is fA, and the image height of the imaging optical lenses 10-120 is IH, satisfying the following relationship: 3.99 ≤ fA / IH ≤ 4.80. By specifying the ratio of the system focal length to the image height of the imaging optical lenses 10-120, the imaging optical lenses 10-120 that meet the condition have a longer focal length when the image height is fixed, which helps to improve the system magnification of the imaging optical lenses 10-120. More preferably, 3.99 ≤ fA / IH ≤ 4.60.

[0072] The central radius of curvature of the object side of the first prism P1 is Rp1, and the central radius of curvature of the image side of the first prism P1 is Rp2, satisfying the following relationship: Rp1 / Rp2≤0.80, which defines the concave-convex shape of the first prism P1. Within the range of the condition, it is beneficial to mitigate the degree of deflection of light entering the lens and to facilitate smooth subsequent propagation.

[0073] The center radius of curvature of the object side of the first lens L1 is R1, and the center radius of curvature of the image side of the first lens L1 is R2, satisfying 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 imaging optical lens 10 to 120, improve the manufacturing yield by reducing the molding difficulty, and at the same time reduce the stray light generated by the lens and improve the imaging quality of the lens.

[0074] The on-axis thickness of the third lens L3 is d5, and the on-axis thickness of the fourth lens L4 is d7, satisfying the following relationship: 0.16≤d5 / d7≤1.80. By reasonably allocating the thickness of the lenses, it is beneficial to reduce the assembly difficulty in the actual production process and improve the yield rate.

[0075] Under the above conditions, the camera optical lens 10-120 has good optical performance and can meet the design requirements of large aperture, long focal length and miniaturization. Based on the characteristics of the camera optical lens 10-120, it is particularly suitable for mobile phone camera lens assemblies and WEB camera lenses composed of high-pixel CCD, CMOS and other camera elements.

[0076] Based on the above conditional expressions and the functions that can be achieved, the characteristics of each lens are further refined as follows.

[0077] In this 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 they satisfy the following relationship: 0.25≤d1 / d3≤1.00. By reasonably allocating the thickness of the lenses, it is beneficial to compress the overall length of the optical system, thereby enabling the camera optical lens 10 to 120 to meet the miniaturization design requirements.

[0078] In this invention, the object-side surface of the first prism P1 is convex or planar near the axis, and the image-side surface is concave, convex, or planar near the axis. The object-side surface of the first prism P1 may also be configured as concave.

[0079] The focal length of the first prism P1 is fp1, which satisfies the following relationship: 1.01≤fp1 / fA≤10.31. By reasonably allocating the positive optical power of the first prism P1, the system has better imaging quality and lower sensitivity.

[0080] The sum of the axial distance from the object side of the first prism to the reflecting surface and the axial distance from the reflecting surface to the image side of the first prism is dp1. 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 condition, it is beneficial to achieve miniaturization and reasonably control the total optical length of the camera optical lenses 10 to 120.

[0081] In this invention, the object-side surface of the first lens L1 is convex near the axis, and the image-side surface is concave near the axis. The object-side surface and image-side surface of the first lens L1 can also be configured with other concave and convex distributions.

[0082] 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 optical power of the first lens L1 within a reasonable range, it is beneficial to correct the aberrations of the optical system.

[0083] The on-axis thickness of the first lens L1 is d1, and the total optical length of the camera optical lenses 10 to 120 is TTL, satisfying the following relationship: 0.024≤d1 / TTL≤0.069. Within the range of the condition, it is beneficial to reasonably control the total optical length of the camera optical lenses 10 to 120.

[0084] In this invention, the object-side surface of the second lens L2 is convex near the axis, and the image-side surface is also convex near the axis. The object-side and image-side surfaces of the second lens L2 can also be configured with other concave / convex distributions.

[0085] The focal length of the second lens L2 is f2, which satisfies the following relationship: 0.32≤f2 / fA≤0.49. By reasonably allocating the optical power, it is beneficial to correct the aberrations of the optical system, so that the system has better imaging quality and lower sensitivity.

[0086] The center radius of curvature of the object side of the second lens L2 is R3, and the center radius of curvature of the image side of the second lens L2 is R4, satisfying the following relationship: -0.28≤(R3+R4) / (R3-R4)≤0.03, which specifies the shape of the second lens L2, which is beneficial to the shaping of the second lens L2. Within the range specified by the condition, it can mitigate the degree of refraction of light passing through the lens and effectively reduce aberrations.

[0087] The on-axis thickness of the second lens L2 is d3, and the total optical length of the camera optical lenses 10 to 120 is TTL, satisfying the following relationship: 0.056≤d3 / TTL≤0.089. Within the range of the condition, it is beneficial to reasonably control the total optical length of the camera optical lenses 10 to 120.

[0088] In this embodiment, the object-side surface of the third lens L3 is concave or convex near the axis, and the image-side surface is concave near the axis. The image-side surface of the third lens L3 can also be configured as convex.

[0089] The focal length of the third lens L3 is f3, which satisfies the following relationship: -2.24≤f3 / fA≤-0.46. By reasonably allocating the negative optical power of the third lens L3, it is beneficial to correct the aberrations of the optical system, so that the system has better imaging quality and lower sensitivity.

[0090] The central radius of curvature of the object side of the third lens L3 is R5, and the central radius of curvature of the image side of the third lens L3 is R6, and they satisfy the following relationship: -0.68≤(R5+R6) / (R5-R6)≤3.38, which defines the shape of the third lens L3. When within the range, it can mitigate the degree of light deflection after passing through the lens, which is beneficial for correcting aberrations and other problems at off-axis drawing angles.

[0091] The on-axis thickness of the third lens L3 is d5, and the total optical length of the camera optical lenses 10 to 120 is TTL, satisfying the following relationship: 0.011≤d5 / TTL≤0.079. Within the range of the condition, it is beneficial to achieve reasonable control of the total optical length of the camera optical lenses 10 to 120.

[0092] In this embodiment, the object side of the fourth lens L4 is either convex or concave near the axis, and the image side is either convex or concave near the axis.

[0093] The focal length of the fourth lens L4 is f4, which satisfies the following relationship: 0.98≤f4 / fA≤6.75. The limitation of the fourth lens L4 can effectively make the light angle of the camera optical lens from 10 to 120 degrees smoother and reduce tolerance sensitivity.

[0094] The center radius of curvature of the object side of the fourth lens L4 is R7, and the center radius of curvature of the image side of the fourth lens L4 is R8, and they satisfy the following relationship: -4.00≤(R7+R8) / (R7-R8)≤18.99, which defines the shape of the fourth lens L4. When within this range, with the development of miniaturization, it is beneficial to correct aberrations and other problems in off-axis drawing angles.

[0095] The on-axis thickness of the fourth lens L4 is d7, and the total optical length of the camera optical lenses 10 to 120 is TTL, satisfying the following relationship: 0.037≤d7 / TTL≤0.075. Within the range of the condition, it is beneficial to achieve reasonable control of the total optical length of the camera optical lenses 10 to 120.

[0096] In this embodiment, the object side of the fifth lens L5 is convex or concave near the axis, and the image side is concave or convex near the axis. The fifth lens L5 has positive or negative refractive power.

[0097] 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.

[0098] The central radius of curvature of the object side of the fifth lens L5 is R9, and the central radius of curvature of the image side of the fifth lens L5 is R10, and they satisfy the following relationship: -60.05≤(R9+R10) / (R9-R10)≤15.60, which defines the shape of the fifth lens L5. Within the specified range, with the development of miniaturization, it is beneficial to correct aberrations and other problems in off-axis drawing angles.

[0099] The axial thickness of the fifth lens L5 is d9, and the total optical length of the camera optical lenses 10 to 120 is TTL, satisfying the following relationship: 0.018≤d9 / TTL≤0.088. Within the range of the condition, it is beneficial to achieve reasonable control of the total optical length of the camera optical lenses 10 to 120.

[0100] In this 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 can also be made of other materials.

[0101] In this invention, an optical element such as an optical filter GF can be disposed between the fifth lens L5 and the image plane Si. The optical filter GF can be a glass cover plate or an optical filter.

[0102] The camera optical lenses 10-120 of this invention may also be provided with an aperture S1, which is located 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 located in other positions.

[0103] 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. Preferably, the aperture value FNO of the camera optical lens 10 is less than or equal to 2.34.

[0104] The camera optical lens of the present invention will be described below with examples. The symbols described in each example are as follows. The units for focal length, on-axis distance, center radius of curvature, and on-axis thickness are mm.

[0105] TTL: Total optical length (the axial distance from the object surface of the first prism P1 to the image surface Si), in mm;

[0106] Aperture value FNO: refers to the ratio of the effective focal length to the entrance pupil diameter of a camera lens.

[0107] The technical solution of the present invention will now be described in detail with twelve embodiments.

[0108] (First Implementation)

[0109] The first prism P1 has positive refractive force, its object side is convex near the axis, and its image side is concave near the axis.

[0110] The first lens L1 has negative refractive power, its object side is convex near the axis, and its image side is concave near the axis;

[0111] The second lens L2 has positive refractive power, and its object side is convex near the axis, while its image side is convex near the axis.

[0112] The third lens L3 has negative refractive power, and its object side is concave near the axis, while its image side is concave near the axis.

[0113] The fourth lens L4 has positive refractive power, and its object side is convex near the axis, while its image side is convex near the axis.

[0114] The fifth lens L5 has negative refractive power. Its object side is convex near the axis, and its image side is concave near the axis.

[0115] Table 1 shows the design data of the camera optical lens 10 according to the first embodiment of the present invention.

[0116] Table 1

[0117] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.000, “dp1-02” = 4.500.

[0118] Table 2 shows the relevant optical parameters of the camera lens 10 in the first embodiment of the present invention in the first state and the second state, respectively.

[0119] Table 2

[0120] The meanings of each symbol are as follows.

[0121] S1: Aperture;

[0122] R: Radius of curvature at the center of the optical surface;

[0123] Rp1: The central radius of curvature of the object-side surface of the first prism P1;

[0124] Rp2: The central radius of curvature of the image side surface of the first prism P1;

[0125] R1: The central radius of curvature of the object-side surface of the first lens L1;

[0126] R2: The central radius of curvature of the image-side surface of the first lens L1;

[0127] R3: The central radius of curvature of the object-side surface of the second lens L2;

[0128] R4: The central radius of curvature of the image-side surface of the second lens L2;

[0129] R5: The central radius of curvature of the object-side surface of the third lens L3;

[0130] R6: The central radius of curvature of the image-side surface of the third lens L3;

[0131] R7: The central radius of curvature of the object side surface of the fourth lens L4;

[0132] R8: The central radius of curvature of the image-side surface of the fourth lens L4;

[0133] R9: The central radius of curvature of the object-side surface of the fifth lens L5;

[0134] R10: The central radius of curvature of the image-side surface of the fifth lens L5;

[0135] R11: The center radius of curvature of the object side surface of the optical filter GF;

[0136] R12: Radius of curvature of the center of the image side of the optical filter GF;

[0137] d: Axial thickness of the lens, axial distance between lenses;

[0138] d0: The on-axis distance from aperture S1 to the object-side surface of the first prism P1;

[0139] dp1: The sum of the axial distance from the object side surface of the first prism P1 to the reflecting surface and the axial distance from the reflecting surface to the image side surface of the first prism P1;

[0140] dp1-01: The axial distance from the object-side surface of the first prism P1 to the reflecting surface;

[0141] dp1-02: The on-axis distance from the reflecting surface of the first prism P1 to the image-side surface of the first prism P1;

[0142] dp2: The on-axis distance from the image-side surface of the first prism P1 to the object-side surface of the first lens L1;

[0143] d1: On-axis thickness of the first lens L1;

[0144] d2: The on-axis distance from the image-side surface of the first lens L1 to the object-side surface of the second lens L2;

[0145] d3: On-axis thickness of the second lens L2;

[0146] d3: The on-axis distance from the image-side surface of the second lens L2 to the object-side surface of the third lens L3;

[0147] d5: On-axis thickness of the third lens L3;

[0148] d6: The on-axis distance from the image-side surface of the third lens L3 to the object-side surface of the fourth lens L4;

[0149] d7: On-axis thickness of the fourth lens L4;

[0150] d8: The on-axis distance from the image-side surface of the fourth lens L4 to the object-side surface of the fifth lens L5;

[0151] d9: On-axis thickness of the fifth lens L5;

[0152] d10: The on-axis distance from the image-side surface of the fifth lens L5 to the object-side surface of the optical filter GF;

[0153] d11: On-axis thickness of the optical filter GF;

[0154] d12: The axial distance from the image-side surface of the optical filter GF to the image plane Si;

[0155] nd: Refractive index of the d-line;

[0156] nd1: The refractive index of the d-line of the first prism P1;

[0157] nd2: The refractive index of the d-line of the first lens L1;

[0158] nd3: The refractive index of the d-line of the second lens L2;

[0159] nd4: The refractive index of the d-line of the third lens L3;

[0160] nd5: The refractive index of the d-line of the fourth lens L4;

[0161] nd6: The refractive index of the d-line of the fifth lens L5;

[0162] ndg: The refractive index of the d-line of the optical filter GF;

[0163] vd: Abbe number;

[0164] vd1: Abbe number of the first prism P1;

[0165] vd2: Abbe number of the first lens L1;

[0166] vd3: Abbe number of the second lens L2;

[0167] vd4: Abbe number of the third lens L3;

[0168] vd5: Abbe number of the fourth lens L4;

[0169] vd6: Abbe number of the fifth lens L5;

[0170] vdg: Abbe number of the GF of the optical filter.

[0171] Table 3 shows the aspherical data of each lens in the camera optical lens 10 of the first embodiment of the present invention.

[0172] Table 3

[0173] For convenience, the aspherical surfaces of each lens surface are those shown in formula (1) below. However, the present invention is not limited to the aspherical polynomial form represented by formula (1). 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 +A16r 16 +A18r 18 +A20r 20+A22r 22 +A24r 24 +A26r 26 +A28r 28 +A30r 30

[0174] Where k is the conic coefficient, A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, A28, and A30 are aspheric coefficients, c is the curvature at the center of the optical surface, r is the perpendicular distance between a point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular distance between a point on the aspheric surface at a distance r from the optical axis and a tangent plane at the vertex of the aspheric optical axis).

[0175] Figures 2 and 3 show schematic diagrams of axial aberration and magnification chromatic aberration after light with wavelengths of 650nm, 610nm, 555nm, 510nm, 470nm, and 430nm passes through the camera optical lens 10 of the first embodiment in the first state. Figure 4 shows schematic diagrams of field curvature and distortion after light with a wavelength of 555nm passes through the camera optical lens 10 of the first embodiment in the first state. In Figure 4, the field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0176] Table 37, which appears later, shows the values ​​corresponding to the parameters specified in the conditional expressions for various numerical values ​​in each of the embodiments 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12.

[0177] As shown in Table 37, the first embodiment satisfies all the conditional expressions.

[0178] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 10 is 6.863mm, the full field of view image height IH is 3.600mm, 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. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0179] (Second Implementation)

[0180] The second implementation method is basically the same as the first implementation method, and the symbols have the same meanings as the first implementation method. Only the differences are listed below.

[0181] Unlike the first embodiment, in this embodiment, the image-side surface of the first prism P1 is planar at the paraxial position.

[0182] Figure 5 shows the camera optical lens 20 of the second embodiment of the present invention.

[0183] Table 4 shows the design data of the camera optical lens 20 according to the second embodiment of the present invention.

[0184] Table 4

[0185] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.000, “dp1-02” = 4.500.

[0186] Table 5 shows the relevant optical parameters of the camera lens 20 in the first state and the second state of the second embodiment of the present invention.

[0187] Table 5

[0188] Table 6 shows the aspherical data of each lens in the camera optical lens 20 of the second embodiment of the present invention.

[0189] Table 6

[0190] Figures 6 and 7 show schematic diagrams of axial aberration and magnification chromatic aberration after light with wavelengths of 650nm, 610nm, 555nm, 510nm, 470nm, and 430nm passes through the imaging optical lens 20 of the second embodiment in the first state. Figure 8 shows schematic diagrams of field curvature and distortion after light with a wavelength of 555nm passes through the imaging optical lens 20 of the second embodiment in the first state. In Figure 8, the field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0191] As shown in Table 37, the second embodiment satisfies all the conditional expressions.

[0192] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 20 is 6.863mm, the full field of view image height IH is 3.600mm, 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.

[0193] (Third Implementation)

[0194] The third implementation method is basically the same as the first implementation method, and the symbols have the same meanings as the first implementation method. Only the differences are listed below.

[0195] Figure 9 shows the camera optical lens 30 of the third embodiment of the present invention.

[0196] Table 7 shows the design data of the camera optical lens 30 according to the third embodiment of the present invention.

[0197] Table 7

[0198] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.000, “dp1-02” = 4.500.

[0199] Table 8 shows the relevant optical parameters of the camera lens 30 in the first state and the second state according to the third embodiment of the present invention.

[0200] Table 8

[0201] Table 9 shows the aspherical data of each lens in the camera optical lens 30 of the third embodiment of the present invention.

[0202] Table 9

[0203] Figures 10 and 11 show schematic diagrams of axial aberration and magnification chromatic aberration after light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm, and 430 nm passes through the imaging optical lens 30 of the third embodiment in the first state. Figure 12 shows schematic diagrams of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 30 of the third embodiment in the first state. In Figure 12, the field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0204] As shown in Table 37, the third embodiment satisfies all the conditional expressions.

[0205] 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. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0206] (Fourth Implementation)

[0207] The fourth implementation method is basically the same as the first implementation method, and the symbols have the same meanings as the first implementation method. Only the differences are listed below.

[0208] Unlike the first embodiment, in this embodiment, the object-side surface of the first prism P1 is flat near the axis, the image-side surface of the first prism P1 is convex near the axis, the object-side surface of the third lens L3 is convex near the axis, the object-side surface of the fourth lens L4 is concave near the axis, the object-side surface of the fifth lens L5 is concave near the axis, and the image-side surface of the fifth lens L5 is convex near the axis.

[0209] Figure 13 shows the camera optical lens 40 of the fourth embodiment of the present invention.

[0210] Table 10 shows the design data of the camera optical lens 40 according to the fourth embodiment of the present invention.

[0211] Table 10

[0212] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.000, “dp1-02” = 4.500.

[0213] Table 11 shows data on the relevant optical parameters of the camera lens 40 in the first state and the second state according to the fourth embodiment of the present invention.

[0214] Table 11

[0215] Table 12 shows the aspherical data of each lens in the camera optical lens 40 of the fourth embodiment of the present invention.

[0216] Table 12

[0217] In the fourth embodiment, the aspherical surfaces of each lens surface of the imaging optical lens 40 are aspherical surfaces as shown in the following formula (2). z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A1 4r 14 +A16r 16 +A18r 18 +A20r 20 (2)

[0218] Where k is the conic coefficient, A4, A6, A8, A10, A12, A14, A16, A18, and A20 are aspheric coefficients, c is the curvature at the center of the optical surface, r is the perpendicular distance between a point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular distance between a point on the aspheric surface at a distance r from the optical axis and a tangent plane at the vertex of the aspheric optical axis).

[0219] Figures 14 and 15 show schematic diagrams of axial aberration and magnification chromatic aberration after light with wavelengths of 650nm, 610nm, 555nm, 510nm, 470nm, and 430nm passes through the imaging optical lens 40 of the third embodiment in the first state. Figure 16 shows schematic diagrams of field curvature and distortion after light with a wavelength of 555nm passes through the imaging optical lens 40 of the fourth embodiment in the first state. In Figure 16, the field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0220] As shown in Table 37, the fourth embodiment satisfies all the conditional expressions.

[0221] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 40 is 7.259mm, the full field of view image height IH is 3.600mm, 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. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0222] (Fifth Implementation)

[0223] The fifth embodiment is basically the same as the first embodiment, and the symbols have the same meanings as the first embodiment. Only the differences are listed below.

[0224] Unlike the first embodiment, in this embodiment, the object side of the fifth lens L5 is concave near the axis, and the image side of the fifth lens L5 is convex near the axis.

[0225] Figure 17 shows the camera optical lens 50 of the fifth embodiment of the present invention.

[0226] Table 13 shows the design data of the camera optical lens 50 according to the fifth embodiment of the present invention.

[0227] Table 13

[0228] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.000, “dp1-02” = 4.500.

[0229] Table 14 shows data on the relevant optical parameters of the camera lens 50 in the first state and the second state according to the fifth embodiment of the present invention.

[0230] Table 14

[0231] Table 15 shows the aspherical data of each lens in the camera optical lens 50 of the fifth embodiment of the present invention.

[0232] Table 15

[0233] Figures 18 and 19 show schematic diagrams of axial aberration and magnification chromatic aberration after light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm, and 430 nm passes through the imaging optical lens 50 of the fifth embodiment in the first state. Figure 20 shows schematic diagrams of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 50 of the fifth embodiment in the first state. In Figure 20, the field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0234] As shown in Table 37, the fifth embodiment satisfies all the conditional expressions.

[0235] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 50 is 7.143mm, the full field of view image height IH is 3.600mm, 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. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0236] (Sixth Implementation Method)

[0237] The sixth embodiment is basically the same as the first embodiment, and the symbols have the same meanings as the first embodiment. Only the differences are listed below.

[0238] Unlike the first embodiment, in this embodiment, the image-side surface of the fourth lens L4 is concave near the axis, the object-side surface of the fifth lens L5 is concave near the axis, and the image-side surface of the fifth lens L5 is convex near the axis; the fifth lens L5 has positive refractive power.

[0239] Figure 21 shows the camera optical lens 60 according to the sixth embodiment of the present invention.

[0240] Table 16 shows the design data of the camera optical lens 60 according to the sixth embodiment of the present invention.

[0241] Table 16

[0242] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.000, “dp1-02” = 4.500.

[0243] Table 17 shows data on the relevant optical parameters of the camera lens 60 in the first state and the second state according to the sixth embodiment of the present invention.

[0244] Table 17

[0245] Table 18 shows the aspherical data of each lens in the camera optical lens 60 of the sixth embodiment of the present invention.

[0246] Table 18

[0247] Figures 22 and 23 show schematic diagrams of axial aberration and magnification chromatic aberration after light with wavelengths of 650nm, 610nm, 555nm, 510nm, 470nm, and 430nm passes through the imaging optical lens 60 of the sixth embodiment in the first state. Figure 24 shows schematic diagrams of field curvature and distortion after light with a wavelength of 555nm passes through the imaging optical lens 60 of the sixth embodiment in the first state. In Figure 24, the field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0248] As shown in Table 37, the sixth embodiment satisfies all the conditional expressions.

[0249] 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.

[0250] (Seventh Implementation)

[0251] The seventh embodiment is basically the same as the first embodiment, and the symbols have the same meanings as the first embodiment. Only the differences are listed below.

[0252] Unlike the first embodiment, in this embodiment, the image-side surface of the first prism P1 is flat near the axis, the object-side surface of the third lens L3 is convex near the axis, the image-side surface of the fourth lens L4 is concave near the axis, and the object-side surface of the fifth lens L5 is concave near the axis.

[0253] Figure 25 shows the camera optical lens 70 of the seventh embodiment of the present invention.

[0254] Table 19 shows the design data of the camera optical lens 70 according to the seventh embodiment of the present invention.

[0255] Table 19

[0256] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.000, “dp1-02” = 4.500.

[0257] Table 20 shows data on the relevant optical parameters of the camera lens 70 in the first state and the second state according to the seventh embodiment of the present invention.

[0258] Table 20

[0259] Table 21 shows the aspherical data of each lens in the camera optical lens 70 of the seventh embodiment of the present invention.

[0260] Table 21

[0261] In the seventh embodiment, the aspherical surfaces of each lens surface of the imaging optical lens 70 are aspherical surfaces as shown in the following formula (2). z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A1 4r 14 +A16r 16 +A18r 18 +A20r 20 (2)

[0262] Where k is the conic coefficient, A4, A6, A8, A10, A12, A14, A16, A18, and A20 are aspheric coefficients, c is the curvature at the center of the optical surface, r is the perpendicular distance between a point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular distance between a point on the aspheric surface at a distance r from the optical axis and a tangent plane at the vertex of the aspheric optical axis).

[0263] Figures 26 and 27 show schematic diagrams of axial aberration and magnification chromatic aberration after light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm, and 430 nm passes through the imaging optical lens 70 of the seventh embodiment in the first state. Figure 28 shows schematic diagrams of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 70 of the seventh embodiment in the first state. In Figure 28, the field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0264] As shown in Table 37, the seventh embodiment satisfies all the conditional expressions.

[0265] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 70 is 7.297mm, the full field of view image height IH is 3.600mm, 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. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0266] (Eighth Implementation Method)

[0267] The eighth embodiment is basically the same as the first embodiment, and the symbols have the same meanings as the first embodiment. Only the differences are listed below.

[0268] Unlike the first embodiment, in this embodiment, the image-side surface of the first prism P1 is convex near the axis, the object-side surface of the third lens L3 is convex near the axis, the image-side surface of the fourth lens L4 is concave near the axis, the object-side surface of the fifth lens L5 is concave near the axis, and the image-side surface of the fifth lens L5 is convex near the axis.

[0269] Figure 29 shows the camera optical lens 80 of the eighth embodiment of the present invention.

[0270] Table 22 shows the design data of the camera optical lens 80 according to the eighth embodiment of the present invention.

[0271] Table 22

[0272] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.000, “dp1-02” = 4.500.

[0273] Table 23 shows data on the relevant optical parameters of the camera optical lens 80 in the first state and the second state, respectively, according to the eighth embodiment of the present invention.

[0274] Table 23

[0275] Table 24 shows the aspherical data of each lens in the camera optical lens 80 of the eighth embodiment of the present invention.

[0276] Table 24

[0277] In the eighth embodiment, the aspherical surfaces of each lens surface of the imaging optical lens 80 are aspherical surfaces as shown in the following formula (2). z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A1 4r 14 +A16r 16 +A18r 18 +A20r 20 (2)

[0278] Where k is the conic coefficient, A4, A6, A8, A10, A12, A14, A16, A18, and A20 are aspheric coefficients, c is the curvature at the center of the optical surface, r is the perpendicular distance between a point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular distance between a point on the aspheric surface at a distance r from the optical axis and a tangent plane at the vertex of the aspheric optical axis).

[0279] Figures 30 and 31 show schematic diagrams of axial aberration and magnification chromatic aberration after light with wavelengths of 650nm, 610nm, 555nm, 510nm, 470nm, and 430nm passes through the camera optical lens 80 of the eighth embodiment in the first state. Figure 32 shows schematic diagrams of field curvature and distortion after light with a wavelength of 555nm passes through the camera optical lens 80 of the eighth embodiment in the first state. In Figure 32, 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 eighth embodiment satisfies all the conditional expressions.

[0281] 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.

[0282] (Ninth Implementation)

[0283] The ninth embodiment is basically the same as the first embodiment, and the symbols have the same meanings as the first embodiment. Only the differences are listed below.

[0284] Unlike the first embodiment, in this embodiment, the image-side surface of the first prism P1 is convex near the axis, the object-side surface of the third lens L3 is convex near the axis, the image-side surface of the fourth lens L4 is concave near the axis, the object-side surface of the fifth lens L5 is concave near the axis, and the image-side surface of the fifth lens L5 is convex near the axis.

[0285] Figure 33 shows the camera optical lens 90 according to the ninth embodiment of the present invention.

[0286] Table 25 shows the design data of the camera optical lens 90 according to the ninth embodiment of the present invention.

[0287] Table 25

[0288] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.000, “dp1-02” = 4.500.

[0289] Table 26 shows data on the relevant optical parameters of the camera lens 90 in the first state and the second state according to the ninth embodiment of the present invention.

[0290] Table 26

[0291] Table 27 shows the aspherical data of each lens in the camera optical lens 90 of the ninth embodiment of the present invention.

[0292] Table 27

[0293] In the ninth embodiment, the aspherical surfaces of each lens surface of the imaging optical lens 90 are aspherical surfaces as shown in the following formula (2). z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A1 4r 14 +A16r 16 +A18r 18 +A20r 20 (2)

[0294] Where k is the conic coefficient, A4, A6, A8, A10, A12, A14, A16, A18, and A20 are aspheric coefficients, c is the curvature at the center of the optical surface, r is the perpendicular distance between a point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular distance between a point on the aspheric surface at a distance r from the optical axis and a tangent plane at the vertex of the aspheric optical axis).

[0295] Figures 34 and 35 show schematic diagrams of axial aberration and magnification chromatic aberration after light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm, and 430 nm passes through the imaging optical lens 90 of the ninth embodiment in the first state. Figure 36 shows schematic diagrams of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 90 of the ninth embodiment in the first state. In Figure 36, the field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0296] As shown in Table 37, the ninth embodiment satisfies all the conditional expressions.

[0297] In this embodiment, in the first state, the entrance pupil diameter ENPD of the camera optical lens 90 is 7.259mm, the full field of view image height IH is 3.600mm, 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. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

[0298] (Tenth Implementation)

[0299] The tenth embodiment is basically the same as the first embodiment, and the symbols have the same meanings as the first embodiment. Only the differences are listed below.

[0300] Unlike the first embodiment, in this embodiment, the image-side surface of the first prism P1 is convex near the axis, the object-side surface of the third lens L3 is convex near the axis, the image-side surface of the fourth lens L4 is concave near the axis, the object-side surface of the fifth lens L5 is concave near the axis, and the image-side surface of the fifth lens L5 is convex near the axis.

[0301] Figure 37 shows the camera optical lens 100 according to the tenth embodiment of the present invention.

[0302] Table 28 shows the design data of the camera optical lens 100 according to the tenth embodiment of the present invention.

[0303] Table 28

[0304] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.000, “dp1-02” = 4.500.

[0305] Table 29 shows data on the relevant optical parameters of the camera optical lens 100 according to the tenth embodiment of the present invention in the first state and the second state, respectively.

[0306] Table 29

[0307] Table 30 shows the aspherical data of each lens in the camera optical lens 100 according to the tenth embodiment of the present invention.

[0308] Table 30

[0309] In the tenth embodiment, the aspherical surfaces of each lens surface of the imaging optical lens 100 are aspherical surfaces as shown in the following formula (2). z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A1 4r 14 +A16r 16 +A18r 18 +A20r 20 (2)

[0310] Where k is the conic coefficient, A4, A6, A8, A10, A12, A14, A16, A18, and A20 are aspheric coefficients, c is the curvature at the center of the optical surface, r is the perpendicular distance between a point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular distance between a point on the aspheric surface at a distance r from the optical axis and a tangent plane at the vertex of the aspheric optical axis).

[0311] Figures 38 and 39 show schematic diagrams of axial aberration and magnification chromatic aberration after light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm, and 430 nm passes through the imaging optical lens 100 of the tenth embodiment in the first state. Figure 40 shows schematic diagrams of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 100 of the tenth embodiment in the first state. In Figure 40, the field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0312] As shown in Table 37, the tenth embodiment satisfies all the conditional expressions.

[0313] 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.

[0314] (Eleventh Implementation Method)

[0315] The eleventh embodiment is basically the same as the first embodiment, and the symbols have the same meanings as the first embodiment. Only the differences are listed below.

[0316] Unlike the first embodiment, in this embodiment, the image-side surface of the first prism P1 is convex near the axis, the object-side surface of the third lens L3 is convex near the axis, the image-side surface of the fourth lens L4 is concave near the axis, the object-side surface of the fifth lens L5 is concave near the axis, and the image-side surface of the fifth lens L5 is convex near the axis.

[0317] Figure 41 shows the camera optical lens 110 according to the eleventh embodiment of the present invention.

[0318] Table 31 shows the design data of the camera optical lens 110 according to the eleventh embodiment of the present invention.

[0319] Table 31

[0320] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.000, “dp1-02” = 4.500.

[0321] Table 32 shows data on the relevant optical parameters of the camera optical lens 110 according to the eleventh embodiment of the present invention in the first state and the second state, respectively.

[0322] Table 32

[0323] Table 33 shows the aspherical data of each lens in the camera optical lens 110 of the eleventh embodiment of the present invention.

[0324] Table 33

[0325] In the eleventh embodiment, the aspherical surfaces of each lens surface of the imaging optical lens 110 are aspherical surfaces as shown in the following formula (2). z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A1 4r 14 +A16r 16 +A18r 18 +A20r20 (2)

[0326] Where k is the conic coefficient, A4, A6, A8, A10, A12, A14, A16, A18, and A20 are aspheric coefficients, c is the curvature at the center of the optical surface, r is the perpendicular distance between a point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular distance between a point on the aspheric surface at a distance r from the optical axis and a tangent plane at the vertex of the aspheric optical axis).

[0327] Figures 42 and 43 show schematic diagrams of axial aberration and magnification chromatic aberration after light with wavelengths of 650nm, 610nm, 555nm, 510nm, 470nm, and 430nm passes through the imaging optical lens 110 of the eleventh embodiment in the first state. Figure 44 shows schematic diagrams of field curvature and distortion after light with a wavelength of 555nm passes through the imaging optical lens 110 of the eleventh embodiment in the first state. In Figure 44, the field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0328] As shown in Table 37, the eleventh implementation satisfies all the conditional expressions.

[0329] 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.

[0330] (Twelfth Implementation)

[0331] The twelfth embodiment is basically the same as the first embodiment, and the symbols have the same meanings as the first embodiment. Only the differences are listed below.

[0332] Unlike the first embodiment, in this embodiment, the image-side surface of the first prism P1 is convex near the axis, the object-side surface of the third lens L3 is convex near the axis, the image-side surface of the fourth lens L4 is concave near the axis, the object-side surface of the fifth lens L5 is concave near the axis, and the image-side surface of the fifth lens L5 is convex near the axis.

[0333] Figure 45 shows the camera optical lens 120 of the twelfth embodiment of the present invention.

[0334] Table 34 shows the design data of the camera optical lens 120 according to the twelfth embodiment of the present invention.

[0335] Table 34

[0336] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.000, “dp1-02” = 4.500.

[0337] Table 35 shows data on the relevant optical parameters of the camera lens 120 in the first state and the second state according to the twelfth embodiment of the present invention.

[0338] Table 35

[0339] Table 36 shows the aspherical data of each lens in the camera optical lens 120 of the twelfth embodiment of the present invention.

[0340] Table 36

[0341] In the twelfth embodiment, the aspherical surfaces of each lens surface of the imaging optical lens 120 are aspherical surfaces as shown in the following formula (2). z=(cr 2 ) / {1+[1-(k+1)(c 2 r 2 )] 1 / 2}+A4r 4 +A6r 6 +A8r 8 +A10r 10 +A12r 12 +A1 4r 14 +A16r 16 +A18r 18 +A20r 20 (2)

[0342] Where k is the conic coefficient, A4, A6, A8, A10, A12, A14, A16, A18, and A20 are aspheric coefficients, c is the curvature at the center of the optical surface, r is the perpendicular distance between a point on the aspheric curve and the optical axis, and z is the aspheric depth (the perpendicular distance between a point on the aspheric surface at a distance r from the optical axis and a tangent plane at the vertex of the aspheric optical axis).

[0343] Figures 46 and 47 show schematic diagrams of axial aberration and magnification chromatic aberration after light with wavelengths of 650 nm, 610 nm, 555 nm, 510 nm, 470 nm, and 430 nm passes through the imaging optical lens 120 of the twelfth embodiment in the first state. Figure 48 shows schematic diagrams of field curvature and distortion after light with a wavelength of 555 nm passes through the imaging optical lens 120 of the twelfth embodiment in the first state. In Figure 48, the field curvature S is the field curvature in the sagittal direction, and T is the field curvature in the meridional direction.

[0344] As shown in Table 37, the twelfth embodiment satisfies all the conditional expressions.

[0345] 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.

[0346] Table 37

[0347] Those skilled in the art will understand that the above embodiments are specific implementations of the present invention, and in practical applications, various changes can be made 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 arranged sequentially from the object side to the image side. The first lens and the second lens are defined as a first group, and the third lens, the fourth lens and the fifth lens are defined as a second group. The second group is configured to be movable and adjustable along the optical axis of the camera lens, so that the camera lens can switch between a first state and a second state. The camera lens has the largest focal length in the first state and the smallest focal length in the second state. The first prism has a reflective surface between its object-side surface and its image-side surface; the focal length of the imaging optical lens in the first state is fA, the image height of the imaging optical lens is IH, the central radius of curvature of the object-side surface of the first prism is Rp1, the central radius of curvature of the image-side surface of the first prism is Rp2, the central radius of curvature of the object-side surface of the first lens is R1, the central radius of curvature of the image-side surface of the first lens is R2, the axial thickness of the third lens is d5, and 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 camera 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 camera optical lens according to claim 1, characterized in that, The first lens has an on-axis thickness of d1, and the second lens has an on-axis thickness of d3, satisfying the following relationship: 0.25≤d1 / d3≤1.

00.

4. The camera optical lens according to claim 1, characterized in that, The focal length of the first prism is fp1, the sum of the axial distance from the object side of the first prism to the reflecting surface and the axial distance from the reflecting surface to the image side of the first prism is dp1, and the total optical length of the camera lens is TTL, and satisfies the following relationships: 1.01≤fp1 / fA≤10.31; 0.320≤dp1 / TTL≤0.

421.

5. The camera optical lens according to claim 1, characterized in that, 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 on-axis thickness of the first lens is d1, and the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: -2.02≤f1 / fA≤-0.62; 0.024≤d1 / TTL≤0.

069.

6. The camera 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 radius of curvature of the object-side surface of the second lens is R3, the central radius of curvature of the image-side surface of the second lens is R4, the axial thickness of the second lens is d3, and the total optical length of the imaging optical lens is TTL, satisfying the following relationship: 0.32≤f2 / fA≤0.49; -0.28≤(R3+R4) / (R3-R4)≤0.03; 0.056≤d3 / TTL≤0.

089.

7. The camera 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 radius of curvature of the object-side surface of the third lens is R5, the central radius of curvature of the image-side surface of the third lens is R6, and the total optical length of the camera lens is TTL, and satisfies the following relationships: -2.24≤f3 / fA≤-0.46; -0.68≤(R5+R6) / (R5-R6)≤3.38; 0.011≤d5 / TTL≤0.

079.

8. The camera optical lens according to claim 1, characterized in that, The fourth lens has a focal length of f4, a central radius of curvature of the object side of the fourth lens of R7, a central radius of curvature of the image side of the fourth lens of R8, and a total optical length of TTL, satisfying the following relationships: 0.98≤f4 / fA≤6.75; -4.00≤(R7+R8) / (R7-R8)≤18.99; 0.037≤d7 / TTL≤0.

075.

9. The camera optical lens according to claim 1, characterized in that, The fifth lens has a focal length of f5, a central radius of curvature of the object side of the fifth lens of R9, a central radius of curvature of the image side of the fifth lens of R10, an axial thickness of d9, and a total optical length of TTL, satisfying the following relationships: -4381.09≤f5 / fA≤64.53; -60.05≤(R9+R10) / (R9-R10)≤15.60; 0.018≤d9 / TTL≤0.

088.

10. The camera optical lens as described in claim 1, characterized in that, The first prism is made of glass.

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