Photographic optical lens

Abstract

Embodiments of the present invention relate to the technical field of optics. Disclosed is a photographic optical lens, consisting of a first prism, a first lens group, and a second lens group. The first lens group comprises a first lens and a second lens; the second lens group comprises a third lens, a fourth lens, and a fifth lens; the first lens group is movable for adjustment: 4.00≤fA / IH≤4.60; -4.00≤Rp1 / Rp2≤-0.14; 0.30≤d1 / d3≤1.20; and -2.90≤(R7+R8) / (R7-R8)≤-1.20. The five-element lens is divided into a first lens group and a second lens group, and the first lens group moves for focusing, thereby achieving an internal focusing mode of the optical lens; the ratio of the focal length to the image height of the optical lens in a first state is set such that the optical lens has a longer focal length under a fixed image height, helping to improve the magnification of the optical lens. Configuring the concave-convex shapes of the first prism and the fourth lens helps to mitigate the degree of deflection of light passing through the lenses, thereby effectively reducing aberrations. Reasonably allocating the thicknesses of the first lens and the second lens helps to shorten the total optical length.

Description

Camera optical lens Technical Field

[0001] The present invention relates to the field of optical technology, and in particular to a camera optical lens. Background Technology

[0002] With the rapid development and widespread adoption of smartphones, the research and design of cameras have also advanced rapidly. Furthermore, the current trend in electronic products is towards high functionality and a slim, lightweight design, making miniaturized cameras with excellent image quality the mainstream in the market. Among these, internally focused cameras, due to their high stability, rapid zoom, easy cleaning, and ability to overcome the wear and tear of externally focused cameras, are gradually being developed and applied to mobile phone cameras.

[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] The purpose of this invention is to provide a camera optical lens that can compress the total optical length of the optical lens, meet the requirements of moving focus and realize a periscope design with a long focal length, and has good optical performance.

[0005] To solve the above-mentioned technical problems, embodiments of the present invention provide a camera optical lens, which comprises 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 with negative refractive power, arranged sequentially from the object side to the image side; a reflective surface is provided between the object side and the image side of the first prism; the first lens and the second lens form a first lens group, and the third lens, the fourth lens, and the fifth lens form a second lens group; the first lens group is adjustable and movable along the optical axis of the camera optical lens, allowing the camera optical lens to switch between a first state and a second state, wherein the camera optical lens in the first state... The focal length of the camera lens is at its maximum in the first state, and at its minimum in the second state. The focal length of the camera lens in the first state is fA, the image height of the camera lens is IH, the radius of curvature of the object-side surface of the first prism is Rp1, the radius of curvature of the image-side surface of the first prism is Rp2, the axial thickness of the first lens is d1, the axial thickness of the second lens is d3, the radius of curvature of the object-side surface of the fourth lens is R7, and the radius of curvature of the image-side surface of the fourth lens is R8, satisfying the following relationships: 4.00≤fA / IH≤4.60; -4.00≤Rp1 / Rp2≤-0.14; 0.30≤d1 / d3≤1.20; -2.90≤(R7+R8) / (R7-R8)≤-1.20.

[0006] Optionally, the camera optical lens satisfies the following relationships: 4.38≤fA / IH≤4.53; -3.90≤Rp1 / Rp2≤-0.14; -2.90≤(R7+R8) / (R7-R8)≤-1.19.

[0007] Optionally, the object-side surface of the first prism is convex at the paraxial position, and the image-side surface of the first prism is convex at the paraxial position; the focal length of the first prism is fp1, and satisfies the following relationship: 0.92≤fp1 / fA≤1.23.

[0008] Optionally, 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 radius of curvature of the object-side surface of the first lens is R1, the radius of curvature of the image-side surface of the first lens is R2, and the total optical length of the camera lens is TTL, and satisfies the following relationships: -1.012≤f1 / fA≤-0.943; 3.33≤(R1+R2) / (R1-R2)≤4.00; 0.034≤d1 / TTL≤0.061.

[0009] Optionally, 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 radius of curvature of the object-side surface of the second lens is R3, the radius of curvature of the image-side surface of the second lens is R4, and the total optical length of the camera lens is TTL, and satisfies the following relationships: 0.412≤f2 / fA≤0.455; -0.094≤(R3+R4) / (R3-R4)≤-0.038; 0.050≤d3 / TTL≤0.115.

[0010] Optionally, the object-side surface of the third lens is concave at the paraxial position, and the image-side surface of the third lens is concave at the paraxial position; the focal length of the third lens is f3, the radius of curvature of the object-side surface of the third lens is R5, the radius of curvature of the image-side surface of the third lens is R6, the on-axis thickness of the third lens is d5, and the total optical length of the camera lens is TTL, and satisfies the following relationships: -0.475≤f3 / fA≤-0.450; -0.58≤(R5+R6) / (R5-R6)≤-0.44; 0.019≤d5 / TTL≤0.095.

[0011] Optionally, the object-side surface of the fourth lens is convex at the paraxial position, and the image-side surface of the fourth lens is concave at the paraxial position; the focal length of the fourth lens is f4, the on-axis thickness of the fourth lens is d7, and the total optical length of the camera lens is TTL, and satisfies the following relationships: 0.98≤f4 / fA≤1.15; 0.041≤d7 / TTL≤0.103.

[0012] Optionally, the on-axis thickness of the third lens is d5, and the on-axis thickness of the fourth lens is d7, satisfying the following relationship: 0.25≤d5 / d7≤1.15.

[0013] Optionally, the camera optical lens satisfies the following relationship: 0.29≤d5 / d7≤1.15.

[0014] Optionally, the object-side surface of the fifth lens is convex at the paraxial position, and the image-side surface of the fifth lens is concave at the paraxial position; the focal length of the fifth lens is f5, the radius of curvature of the object-side surface of the fifth lens is R9, and the radius of curvature of the image-side surface of the fifth lens is R10, and the following relationships are satisfied: -1.93≤f5 / fA≤-1.29; 4.31≤(R9+R10) / (R9-R10)≤6.33.

[0015] Optionally, the first prism is made of glass.

[0016] The beneficial effects of this invention are as follows: by dividing the five-element lens into a first lens group and a second lens group, and moving the first lens group to focus, a focusing method of focusing within the optical lens is achieved; by setting the ratio of the focal length to the image height of the optical lens in the first state, the optical lens has a longer focal length when the image height is fixed, which helps to improve the magnification of the optical lens; by setting the concave and convex shapes of the first prism and the fourth lens, it is beneficial to mitigate the degree of light deflection after passing through the lens, which can effectively reduce aberrations; by rationally distributing the thickness of the first lens and the second lens, it helps to compress the total optical length of the optical lens. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0018] Figure 1a is a schematic diagram of the camera optical lens of the first embodiment of the present invention in the first state;

[0019] Figure 1b is a schematic diagram of the camera optical lens of the first embodiment of the present invention in the second state;

[0020] Figures 2a, 3a, and 4a are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 1a, respectively.

[0021] Figures 2b, 3b, and 4b are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 1b, respectively.

[0022] Figure 5a is a schematic diagram of the camera optical lens of the second embodiment of the present invention in the first state;

[0023] Figure 5b is a schematic diagram of the camera optical lens of the second embodiment of the present invention in the second state;

[0024] Figures 6a, 7a, and 8a are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 5a, respectively.

[0025] Figures 6b, 7b, and 8b are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 5b, respectively.

[0026] Figure 9a is a schematic diagram of the camera optical lens in the first state according to the third embodiment of the present invention;

[0027] Figure 9b is a schematic diagram of the camera optical lens in the second state according to the third embodiment of the present invention;

[0028] Figures 10a, 11a, and 12a are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 9a, respectively.

[0029] Figures 10b, 11b, and 12b are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 9b, respectively.

[0030] Figure 13a is a schematic diagram of the camera optical lens in the first state according to the fourth embodiment of the present invention;

[0031] Figure 13b is a schematic diagram of the camera optical lens in the second state according to the fourth embodiment of the present invention;

[0032] Figures 14a, 15a, and 16a are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 13a, respectively.

[0033] Figures 14b, 15b, and 16b are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 13b, respectively.

[0034] Figure 17a is a schematic diagram of the camera optical lens in the first state according to the fifth embodiment of the present invention;

[0035] Figure 17b is a schematic diagram of the camera optical lens in the second state according to the fifth embodiment of the present invention;

[0036] Figures 18a, 19a, and 20a are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 17a, respectively.

[0037] Figures 18b, 19b, and 20b are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 17b, respectively.

[0038] Figure 21a is a schematic diagram of the camera optical lens in the first state according to the sixth embodiment of the present invention;

[0039] Figure 21b is a schematic diagram of the camera optical lens in the second state according to the sixth embodiment of the present invention;

[0040] Figures 22a, 23a, and 24a are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 21a, respectively.

[0041] Figures 22b, 23b, and 24b are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 21b, respectively. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the various embodiments of the present 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 presented in the various embodiments of the present invention to enable the reader to better understand the present invention. However, the technical solutions claimed in the present invention can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0043] In embodiments of the present invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.

[0044] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0045] Furthermore, the terms "installation," "setting," "equipped with," "opening," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances.

[0046] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0047] Please refer to Figures 1a, 1b, 5a, 5b, 9a, 9b, 13a, 13b, 17a, 17b, 21a, and 21b. The technical solution of this invention provides a camera optical lens 10, 20, 30, 40, 50, and 60. This camera optical lens 10, 20, 30, 40, 50, and 60 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 with negative refractive power, arranged sequentially from the object side to the image side. The first prism... A reflective surface is provided between the object side and the image side of P1; the first lens L1 and the second lens L2 form the first lens group, and the third lens L3, the fourth lens L4, and the fifth lens L5 form the second lens group; the first lens group is configured to be movable and adjustable along the optical axis of the camera optical lenses 10, 20, 30, 40, 50, and 60, so that the camera optical lenses 10, 20, 30, 40, 50, and 60 can switch between a first state and a second state, wherein the camera optical lenses 10, 20, 30, 40, 50, and 60 have the largest focal length in the first state and the smallest focal length in the second state.

[0048] The focal length of the camera optical lenses 10, 20, 30, 40, 50, and 60 in the first state is fA, the image height of the camera optical lenses 10, 20, 30, 40, 50, and 60 is IH, the radius of curvature of the object-side surface of the first prism P1 is Rp1, the radius of curvature of the image-side surface of the first prism P1 is Rp2, the on-axis thickness of the first lens L1 is d1, the on-axis thickness of the second lens L2 is d3, the radius of curvature of the object-side surface of the fourth lens L4 is R7, and the radius of curvature of the image-side surface of the fourth lens L4 is R8, and they satisfy the following relationship:

[0049] 4.00≤fA / IH≤4.60 (1)

[0050] -4.00≤Rp1 / Rp2≤-0.14 (2)

[0051] 0.30≤d1 / d3≤1.20 (3)

[0052] -2.90≤(R7+R8) / (R7-R8)≤-1.20 (4)

[0053] Among them, the camera optical lenses 10, 20, 30, 40, 50, and 60 are periscope optical lenses with five-element lenses. The camera optical lenses 10, 20, 30, 40, 50, and 60 are composed of a first prism P1, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, and a fifth lens L5 arranged sequentially from the object side to the image side.

[0054] The five-element lenses in the camera optical lenses of sizes 10, 20, 30, 40, 50, and 60 are respectively the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, and the fifth lens L5. The five-element lenses are divided into two groups (two elements + three elements), namely the first lens group and the second lens group. The first lens group is closer to the object side than the second lens group.

[0055] The first lens group is the front group, consisting of a first lens L1 and a second lens L2. The object-side surface of the first lens group is the same as the object-side surface of the first lens L1, and the image-side surface of the first lens group is the same as the image-side surface of the second lens L2. The second lens group is the rear group, consisting of a third lens L3, a fourth lens L4, and a fifth lens L5. The object-side surface of the second lens group is the same as the object-side surface of the third lens L3, and the image-side surface of the second lens group is the same as the image-side surface of the fifth lens L5.

[0056] The first lens group is located between the first prism P1 and the second lens group, and the first lens group can move along the optical axes of the imaging optical lenses 10, 20, 30, 40, 50, and 60. This allows for adjustment of the axial distance between the image side of the first prism P1 and the object side of the first lens group, as well as the axial distance between the image side of the first lens group and the object side of the second lens group. Thus, the first lens group acts as a zoomable group, and the second lens group is a fixed-focal-length group. By moving the first lens group, the focal lengths of the imaging optical lenses 10, 20, 30, 40, 50, and 60 can be changed, resulting in good imaging performance for all three lenses in both the first and second states. The first state refers to the maximum focal length of the imaging optical lenses 10, 20, 30, 40, 50, and 60, and the second state refers to the minimum focal length of the imaging optical lenses 10, 20, 30, 40, 50, and 60. 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 or a macro state, or a state with an object distance of 200mm. In this way, the 10, 20, 30, 40, 50, and 60mm camera lenses can achieve in-focusing by moving the front group to focus.

[0057] Condition (1) specifies the range of the ratio of focal length fA to image height IH of camera optical lenses 10, 20, 30, 40, 50, and 60 in the first state. Within the range defined by condition (1), camera optical lenses 10, 20, 30, 40, 50, and 60 have a longer focal length when the image height IH is fixed, which helps to improve the magnification of camera optical lenses 10, 20, 30, 40, 50, and 60. For example, 4.38≤fA / IH≤4.53.

[0058] Condition (2) specifies the range of the ratio of the radius of curvature Rp1 of the object side of the first prism P1 to the radius of curvature Rp2 of the image side of the first prism P1, controlling the concave and convex shapes of the object side and the image side of the first prism P1. Within the range defined by condition (2), it is beneficial to mitigate the degree of deflection of light passing through the first prism P1. For example, -3.90≤Rp1 / Rp2≤-0.14.

[0059] Condition (3) specifies the range of the ratio of the on-axis thickness d1 of the first lens L1 to the on-axis thickness d3 of the second lens L2. Within the range defined by condition (3), the thicknesses of the first lens L1 and the second lens L2 can be reasonably allocated, which helps to compress the total optical length of the camera optical lenses 10, 20, 30, 40, 50, and 60.

[0060] Condition (4) specifies the concave and convex shapes of the object side and image side of the fourth lens L4. Within the range defined by condition (4), it is beneficial to mitigate the degree of refraction of light rays passing through the fourth lens L4 and can effectively reduce aberrations. For example, -2.90≤(R7+R8) / (R7-R8)≤-1.19.

[0061] The beneficial effects of this invention are as follows: By dividing the five-element lens into a first lens group and a second lens group, and moving the first lens group to focus, a focusing method of in-focusing of the imaging optical lenses 10, 20, 30, 40, 50, and 60 is achieved; by setting the ratio of focal length to image height of the imaging optical lenses 10, 20, 30, 40, 50, and 60 in the first state, the imaging optical lenses 10, 20, 30, 40, 50, and 60 have a longer focal length when the image height is fixed, which helps to improve the magnification of the imaging optical lenses 10, 20, 30, 40, 50, and 60; by setting the concave and convex shapes of the first prism P1 and the fourth lens L4, the degree of refraction of light after passing through the first prism P1 and the fourth lens L4 is mitigated, which can effectively reduce aberrations; by reasonably distributing the thickness of the first lens L1 and the second lens L2, the total optical length of the imaging optical lenses 10, 20, 30, 40, 50, and 60 is compressed.

[0062] Based on the above conditional expressions and the functions that can be achieved, the characteristics of each lens are further refined as follows.

[0063] Optionally, the focal length of the first prism P1 is fp1, the sum of the axial distance from the object side of the first prism P1 to the reflecting surface and the axial distance from the reflecting surface to the image side of the first prism P1 is dp1, and the total optical length of the imaging optical lenses 10, 20, 30, 40, 50, and 60 is TTL, and satisfies the following relationship:

[0064] 0.92≤fp1 / fA≤1.23 (5)

[0065] 0.37≤dp1 / TTL≤0.38 (6)

[0066] Condition (5) specifies the range of the ratio between the focal length fp1 of the first prism P1 and the focal length fA of the camera optical lenses 10, 20, 30, 40, 50, and 60 in the first state. Within the range defined by condition (5), it helps to improve the optical performance of the camera optical lenses 10, 20, 30, 40, 50, and 60.

[0067] Condition (6) specifies the range of ratios between the sum of the on-axis distances dp1 of the first prism P1 and the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, and 60. Within the range defined by condition (6), it is beneficial to control the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, and 60, thereby achieving miniaturized design of the camera optical lenses 10, 20, 30, 40, 50, and 60. For example, 0.372 ≤ dp1 / TTL ≤ 0.374.

[0068] The object-side surface of the first prism P1 is convex near the axis, and the image-side surface of the first prism P1 is also convex near the axis. The object-side surface and image-side surface of the first prism P1 can also be configured with other concave and convex distributions.

[0069] Optionally, the focal length of the first lens L1 is f1, the radius of curvature of the object side of the first lens L1 is R1, and the radius of curvature of the image side of the first lens L1 is R2, and they satisfy the following relationship:

[0070] -1.012≤f1 / fA≤-0.943 (7)

[0071] 3.33≤(R1+R2) / (R1-R2)≤4.00 (8)

[0072] 0.034≤d1 / TTL≤0.061 (9)

[0073] Condition (7) specifies the range of the ratio between the focal length f1 of the first lens L1 and the focal length fA of the camera optical lenses 10, 20, 30, 40, 50, and 60 in the first state. Within the range defined by condition (7), controlling the negative optical power of the first lens L1 within a reasonable range is beneficial for correcting the aberrations of the optical system.

[0074] Condition (8) specifies the concave and convex shapes of the object side and image side of the first lens L1. Within the range defined by condition (8), as the camera optical lenses 10, 20, 30, 40, 50, and 60 develop towards miniaturization, it is beneficial to correct the problem of on-axis chromatic aberration.

[0075] Condition (9) specifies the range of ratios between the on-axis thickness d1 of the first lens L1 and the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, and 60. Within the range defined by condition (9), it is beneficial to control the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, and 60, thereby achieving miniaturized design of the camera optical lenses 10, 20, 30, 40, 50, and 60.

[0076] The object-side surface of the first lens L1 is convex near the axis, and the image-side surface of the first lens L1 is concave near the axis. The object-side and image-side surfaces of the first lens L1 can also be configured with other concave and convex distributions.

[0077] Optionally, the focal length of the second lens L2 is f2, the radius of curvature of the object side of the second lens L2 is R3, and the radius of curvature of the image side of the second lens L2 is R4, and the following relationship is satisfied:

[0078] 0.412≤f2 / fA≤0.455 (10)

[0079] -0.094≤(R3+R4) / (R3-R4)≤-0.038 (11)

[0080] 0.050≤d3 / TTL≤0.115 (12)

[0081] Condition (10) specifies the range of the ratio between the focal length f2 of the second lens L2 and the focal length fA of the camera optical lenses 10, 20, 30, 40, 50, and 60 in the first state. Within the range defined by condition (10), it is beneficial to correct the aberrations of the optical system and improve the imaging quality of the camera optical lenses 10, 20, 30, 40, 50, and 60.

[0082] Condition (11) specifies the concave and convex shapes of the object side and image side of the second lens L2. Within the range defined by condition (11), as the camera optical lenses 10, 20, 30, 40, 50, and 60 develop towards miniaturization, it is beneficial to correct the problem of on-axis chromatic aberration.

[0083] Condition (12) specifies the range of ratios between the on-axis thickness d3 of the second lens L2 and the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, and 60. Within the range defined by condition (12), it is beneficial to control the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, and 60, thereby achieving miniaturized design of the camera optical lenses 10, 20, 30, 40, 50, and 60.

[0084] The object-side surface of the second lens L2 is convex near the axis, and the image-side surface of the second lens L2 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 and convex distributions.

[0085] Optionally, the focal length of the third lens L3 is f3, the on-axis thickness of the third lens L3 is d5, the radius of curvature of the object side of the third lens L3 is R5, and the radius of curvature of the image side of the third lens L3 is R6, and the following relationship is satisfied:

[0086] -0.475≤f3 / fA≤-0.450 (13)

[0087] -0.58≤(R5+R6) / (R5-R6)≤-0.44 (14)

[0088] 0.019≤d5 / TTL≤0.095 (15)

[0089] Condition (13) specifies the range of the ratio between the focal length f3 of the third lens L3 and the focal length fA of the camera optical lenses 10, 20, 30, 40, 50, and 60 in the first state. Within the range defined by condition (13), the system has better imaging quality and lower sensitivity through reasonable allocation of optical power.

[0090] Condition (14) specifies the concave and convex shapes of the object side and image side of the third lens L3. Within the range defined by condition (14), the degree of light deflection after passing through the lens can be mitigated, effectively reducing aberrations.

[0091] Condition (15) specifies the range of ratios between the on-axis thickness d5 of the third lens L3 and the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, and 60. Within the range defined by condition (15), it is beneficial to control the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, and 60, thereby achieving miniaturized design of the camera optical lenses 10, 20, 30, 40, 50, and 60.

[0092] The object-side surface of the third lens L3 is concave near the axis, and the image-side surface of the third lens L3 is also concave near the axis. The object-side and image-side surfaces of the third lens L3 can also be configured with other concave or convex distributions.

[0093] Optionally, the focal length of the fourth lens L4 is f4, the on-axis thickness of the fourth lens L4 is d7, and the following relationship is satisfied:

[0094] 0.98≤f4 / fA≤1.15 (16)

[0095] 0.041≤d7 / TTL≤0.103 (17)

[0096] Condition (16) specifies the range of the ratio between the focal length f4 of the fourth lens L4 and the focal length fA of the camera optical lenses 10, 20, 30, 40, 50, and 60 in the first state. Within the range defined by condition (16), the system has better imaging quality and lower sensitivity through reasonable allocation of optical power.

[0097] Condition (17) specifies the range of ratios between the on-axis thickness d7 of the fourth lens L4 and the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, and 60. Within the range defined by condition (17), it is beneficial to control the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, and 60, thereby achieving miniaturized design of the camera optical lenses 10, 20, 30, 40, 50, and 60.

[0098] The object-side surface of the fourth lens L4 is convex near the axis, and the image-side surface of the fourth lens L4 is concave near the axis. The object-side and image-side surfaces of the fourth lens L4 can also be configured with other concave and convex distributions.

[0099] Optionally, the camera optical lenses 10, 20, 30, 40, 50, and 60 satisfy the following relationship:

[0100] 0.25≤d5 / d7≤1.15 (18)

[0101] Condition (18) specifies the range of the ratio of the on-axis thickness d5 of the third lens L3 to the on-axis thickness d7 of the fourth lens L4. Within the range defined by condition (18), the on-axis thicknesses of the third lens L3 and the fourth lens L4 can be reasonably allocated, which helps to reduce the assembly difficulty of camera optical lenses 10, 20, 30, 40, 50, and 60 in actual production and improve the yield of camera optical lenses 10, 20, 30, 40, 50, and 60. For example, 0.29≤d5 / d7≤1.15.

[0102] Optionally, the focal length of the fifth lens L5 is f5, the radius of curvature of the object side of the fifth lens L5 is R9, the radius of curvature of the image side of the fifth lens L5 is R10, and the on-axis thickness of the fifth lens L5 is d9, and the following relationship is satisfied:

[0103] -1.93≤f5 / fA≤-1.29 (19)

[0104] 4.31≤(R9+R10) / (R9-R10)≤6.33 (20)

[0105] 0.02≤d9 / TTL≤0.04 (21)

[0106] Condition (19) specifies the range of the ratio between the focal length f5 of the fifth lens L5 and the focal length fA of the camera optical lenses 10, 20, 30, 40, 50, and 60 in the first state. Within the range defined by condition (19), the light angles of the camera optical lenses 10, 20, 30, 40, 50, and 60 are made smooth, reducing tolerance sensitivity.

[0107] Condition (20) specifies the concave and convex shapes of the object side and image side of the fifth lens L5. Within the range defined by condition (20), as the camera optical lenses 10, 20, 30, 40, 50, and 60 develop towards miniaturization, it is beneficial to correct aberrations and other problems in off-axis drawing angles.

[0108] Condition (21) specifies the range of ratios between the on-axis thickness d9 of the fifth lens L5 and the total optical length TTL of the imaging optical lenses 10, 20, 30, 40, 50, and 60. Within the range defined by condition (21), it is beneficial to control the total optical length TTL of the imaging optical lenses 10, 20, 30, 40, 50, and 60, thereby achieving miniaturized design of the imaging optical lenses 10, 20, 30, 40, 50, and 60. For example, 0.026 ≤ d9 / TTL ≤ 0.032.

[0109] The object-side surface of the fifth lens L5 is convex near the axis, and the image-side surface of the fifth lens L5 is concave near the axis. The object-side and image-side surfaces of the fifth lens L5 can also be configured with other concave and convex distributions.

[0110] In this invention, the first prism P1 is made of glass, and the first lens L1, second lens L2, third lens L3, fourth lens L4, and fifth lens L5 are all made of plastic. In other alternative solutions, the first prism P1 and the lenses can also be made of other materials.

[0111] In this invention, an optical element such as an optical filter GF is disposed between the fifth lens L5 and the imaging surface Si. The optical filter GF can be a glass cover or an optical filter. In other optional embodiments, the optical filter GF can also be disposed in other positions.

[0112] In this invention, an aperture ST may also be provided between the first prism P1 and the first lens L1.

[0113] The following examples illustrate the camera optical lenses 10, 20, 30, 40, 50, and 60 of the present invention. The symbols recorded in each example are shown in Table [1]. The units for focal length, on-axis spacing, radius of curvature, and on-axis thickness are millimeters.

[0114] TTL: Total optical length (axial distance from the object surface of the first prism P1 to the imaging surface), in millimeters.

[0115] First implementation method:

[0116] The first prism P1 has positive refractive force, and its object side is convex near the axis, and its image side is convex near the axis.

[0117] 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;

[0118] 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.

[0119] 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.

[0120] The fourth lens L4 has positive refractive power; its object side is convex near the axis, and its image side is concave near the axis.

[0121] 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.

[0122] Figures 1a and 1b are schematic diagrams of the camera optical lens 10 in the first embodiment. The design data for the camera optical lens 10 in the first embodiment of the present invention are shown below.

[0123] Table 1 lists the radius of curvature R, on-axis thickness of the lens, on-axis distance d between the lenses, refractive index nd, and Abbe number vd of the object-side and image-side surfaces of the first prism P1 to the fifth lens L5 constituting the imaging optical lens 10 in the first embodiment of the present invention. It should be noted that in this embodiment, the units of distance, radius, and thickness are all millimeters (mm).

[0124] Table 1

[0125] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 4.9, “dp1-02” = 4.6.

[0126] Table 2 lists the relevant optical parameters of the camera optical lens 10 in the first embodiment of the present invention in the first state and the second state, respectively.

[0127] Table 2

[0128] The meanings of the symbols in the table above are as follows.

[0129] R: Radius of curvature of the optical surface; for lenses, it is the central radius of curvature.

[0130] ST: Aperture;

[0131] Rp1: Radius of curvature of the object-side surface of the first prism P1;

[0132] Rp2: Radius of curvature of the image side of the first prism P1;

[0133] R1: The radius of curvature of the object-side surface of the first lens L1;

[0134] R2: The radius of curvature of the image-side surface of the first lens L1;

[0135] R3: The radius of curvature of the object-side surface of the second lens L2;

[0136] R4: Radius of curvature of the image-side surface of the second lens L2;

[0137] R5: The radius of curvature of the object-side surface of the third lens L3;

[0138] R6: Radius of curvature of the image-side surface of the third lens L3;

[0139] R7: The radius of curvature of the object-side surface of the fourth lens L4;

[0140] R8: Radius of curvature of the image-side surface of the fourth lens L4;

[0141] R9: Radius of curvature of the object-side surface of the fifth lens L5;

[0142] R10: Radius of curvature of the image-side surface of the fifth lens L5;

[0143] R11: Radius of curvature of the object-side surface of the optical filter GF;

[0144] R12: Radius of curvature of the image-side surface of the optical filter GF;

[0145] d: Axial thickness of the lens, axial distance between lenses;

[0146] d0: The on-axis distance from aperture ST to the object-side surface of the first prism P1;

[0147] 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;

[0148] dp1-01: The axial distance from the object-side surface of the first prism P1 to the reflecting surface;

[0149] dp1-02: The on-axis distance from the reflecting surface of the first prism P1 to the image side surface;

[0150] 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;

[0151] d1: On-axis thickness of the first lens L1;

[0152] 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;

[0153] d3: On-axis thickness of the second lens L2;

[0154] d4: The axial distance from the image-side surface of the second lens L2 to the object-side surface of the third lens L3;

[0155] d5: On-axis thickness of the third lens L3;

[0156] 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;

[0157] d7: On-axis thickness of the fourth lens L4;

[0158] 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;

[0159] d9: On-axis thickness of the fifth lens L5;

[0160] 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;

[0161] d11: On-axis thickness of the optical filter GF;

[0162] d12: The on-axis distance from the image-side surface of the optical filter GF to the imaging plane Si;

[0163] nd: Refractive index of the d-line;

[0164] nd1: The refractive index of the d-line of the first prism P1;

[0165] nd2: The refractive index of the d-line of the first lens L1;

[0166] nd3: The refractive index of the d-line of the second lens L2;

[0167] nd4: The refractive index of the d-line of the third lens L3;

[0168] nd5: The refractive index of the d-line of the fourth lens L4;

[0169] nd6: The refractive index of the d-line of the fifth lens L5;

[0170] ndg: The refractive index of the d-line of the optical filter GF;

[0171] vd: Abbe number;

[0172] vd1: Abbe number of the first prism P1;

[0173] vd2: Abbe number of the first lens L1;

[0174] vd3: Abbe number of the second lens L2;

[0175] vd4: Abbe number of the third lens L3;

[0176] vd5: Abbe number of the fourth lens L4;

[0177] vd6: Abbe number of the fifth lens L5;

[0178] vdg: Abbe number of the GF of the optical filter.

[0179] Table 3 lists the conic coefficient k and aspherical coefficient of the camera optical lens 10 according to the first embodiment of the present invention.

[0180] Table 3

[0181] It should be noted that the aspherical surface of each lens in this embodiment uses the aspherical surface shown in the following conditional expression (22). However, the specific form of the following conditional expression (22) is only an example. In fact, the present invention is not limited to the aspherical polynomial form indicated in conditional expression (22).

[0182] z = (c 2 / r) / {1+[1-(k+1)(c 2 / r 2 )] 1 / 2}+A4c 4 +A6c 6 +A8c 8 +A10c 10 +A12c 12 +A14c 14 +A16c 16 +A18c 18 +A20c 20 +A22c 22 +A24c 24 +A26c 26 +A28c 28 (twenty two)

[0183] Where k is the conic coefficient, and A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, and A28 are aspherical coefficients. c is the curvature at the center of the optical surface, r is the perpendicular distance between a point on the aspherical curve and the optical axis, and z is the aspherical depth (the perpendicular distance between a point r on the aspherical surface at a distance r from the optical axis and a tangent plane at the vertex of the aspherical optical axis).

[0184] In addition, Table 19 below lists the values ​​of various parameters and the parameters specified in the conditional expressions in the first embodiment.

[0185] Figures 2a and 2b show schematic diagrams of field curvature and distortion of light with a wavelength of 555 nm after passing through the camera optical lens 10 of the first embodiment; Figures 3a and 3b show schematic diagrams of axial aberration of light with wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 10 of the first embodiment; Figures 4a and 4b show schematic diagrams of magnification chromatic aberration of light with wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 10 of the first embodiment.

[0186] As shown in Table 19, the first embodiment satisfies all the conditional expressions.

[0187] In this embodiment, the entrance pupil diameter of the camera optical lens 10 in the first state is 7.162 mm, the full field of view image height is 3.600 mm, and the diagonal field of view is 24.23°. The camera optical lens 10 meets the characteristics of having a large aperture, long focal length, and miniaturization. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical performance.

[0188] Second Implementation Method

[0189] The first prism P1 has positive refractive force, and its object side is convex near the axis, and its image side is convex near the axis.

[0190] 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;

[0191] 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.

[0192] 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.

[0193] The fourth lens L4 has positive refractive power; its object side is convex near the axis, and its image side is concave near the axis.

[0194] 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.

[0195] Figures 5a and 5b are schematic diagrams of the camera optical lens 20 in the second embodiment. The second embodiment is basically the same as the first embodiment, and the symbols have the same meanings as in the first embodiment. Only the differences are listed below.

[0196] Tables 4-6 show the design data of the camera optical lens 20 according to the second embodiment of the present invention.

[0197] Table 4

[0198] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 4.9, “dp1-02” = 4.6.

[0199] Table 5 lists 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.

[0200] Table 5

[0201] Table 6 lists the conic coefficient k and aspherical coefficient of the camera optical lens 20 according to the second embodiment of the present invention.

[0202] Table 6

[0203] In addition, Table 19 below lists the values ​​of various parameters and the parameters specified in the conditional expressions in the second embodiment.

[0204] Figures 6a and 6b show schematic diagrams of field curvature and distortion of light with a wavelength of 555 nm after passing through the camera optical lens 20 of the second embodiment; Figures 7a and 7b show schematic diagrams of axial aberration of light with wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 20 of the second embodiment; Figures 8a and 8b show schematic diagrams of magnification chromatic aberration of light with wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 20 of the second embodiment.

[0205] As shown in Table 19, the second embodiment satisfies all the conditional expressions.

[0206] In this embodiment, the entrance pupil diameter of the camera optical lens 20 in the first state is 7.089 mm, the full field of view image height is 3.600 mm, and the diagonal field of view is 24.77°. The camera optical lens 20 meets the characteristics of having a large aperture, long focal length, and miniaturization. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical performance.

[0207] Third Implementation Method

[0208] The first prism P1 has positive refractive force, and its object side is convex near the axis, and its image side is convex near the axis.

[0209] 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;

[0210] 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.

[0211] 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.

[0212] The fourth lens L4 has positive refractive power; its object side is convex near the axis, and its image side is concave near the axis.

[0213] 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.

[0214] Figures 9a and 9b are schematic diagrams of the camera optical lens 30 in the third embodiment. The third embodiment is basically the same as the first embodiment, and the symbols have the same meanings as in the first embodiment. Only the differences are listed below.

[0215] Tables 7-9 show the design data of the camera optical lens 30 according to the third embodiment of the present invention.

[0216] Table 7

[0217] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 4.9, “dp1-02” = 4.6.

[0218] Table 8 lists the relevant optical parameters of the camera optical lens 30 in the first state and the second state according to the third embodiment of the present invention.

[0219] Table 8

[0220] Table 9 lists the conic coefficient k and aspherical coefficient of the camera optical lens 30 according to the third embodiment of the present invention.

[0221] Table 9

[0222] In addition, Table 19 below lists the values ​​of various parameters and the parameters specified in the conditional expressions in the third embodiment.

[0223] Figures 10a and 10b show schematic diagrams of field curvature and distortion of light with a wavelength of 555 nm after passing through the camera optical lens 30 of the third embodiment; Figures 11a and 11b show schematic diagrams of axial aberration of light with wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 30 of the third embodiment; Figures 12a and 12b show schematic diagrams of magnification chromatic aberration of light with wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 30 of the third embodiment.

[0224] As shown in Table 19, the third embodiment satisfies all the conditional expressions.

[0225] In this embodiment, the entrance pupil diameter of the camera optical lens 30 in the first state is 7.009 mm, the full field of view image height is 3.600 mm, and the diagonal field of view is 24.64°. The camera optical lens 30 meets the characteristics of having a large aperture, long focal length, and miniaturization. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical performance.

[0226] Fourth Implementation Method

[0227] The first prism P1 has positive refractive force, and its object side is convex near the axis, and its image side is convex near the axis.

[0228] 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;

[0229] 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.

[0230] 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.

[0231] The fourth lens L4 has positive refractive power; its object side is convex near the axis, and its image side is concave near the axis.

[0232] 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.

[0233] Figures 13a and 13b are schematic diagrams of the camera optical lens 40 in the fourth embodiment. The fourth embodiment is basically the same as the first embodiment, and the symbols have the same meanings as in the first embodiment. Only the differences are listed below.

[0234] Tables 10-12 show the design data of the camera optical lens 40 according to the fourth embodiment of the present invention.

[0235] Table 10

[0236] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 4.9, “dp1-02” = 4.6.

[0237] Table 11 lists the relevant optical parameters of the camera optical lens 40 in the first state and the second state according to the fourth embodiment of the present invention.

[0238] Table 11

[0239] Table 12 lists the conic coefficient k and aspherical coefficient of the camera optical lens 40 according to the fourth embodiment of the present invention.

[0240] Table 12

[0241] In addition, Table 19 below lists the values ​​of various parameters and the parameters specified in the conditional expressions in the fourth embodiment.

[0242] Figures 14a and 14b show schematic diagrams of field curvature and distortion of light with a wavelength of 555 nm after passing through the camera optical lens 40 of the fourth embodiment; Figures 15a and 15b show schematic diagrams of axial aberration of light with wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 40 of the fourth embodiment; Figures 16a and 16b show schematic diagrams of magnification chromatic aberration of light with wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 40 of the fourth embodiment.

[0243] As shown in Table 19, the fourth embodiment satisfies all the conditional expressions.

[0244] In this embodiment, the entrance pupil diameter of the camera optical lens 40 in the first state is 7.035 mm, the full field of view image height is 3.600 mm, and the diagonal field of view is 24.85°. The camera optical lens 40 meets the characteristics of having a large aperture, long focal length, and miniaturization. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical performance.

[0245] Fifth Implementation Method

[0246] The first prism P1 has positive refractive force, and its object side is convex near the axis, and its image side is convex near the axis.

[0247] 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;

[0248] 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.

[0249] 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.

[0250] The fourth lens L4 has positive refractive power; its object side is convex near the axis, and its image side is concave near the axis.

[0251] 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.

[0252] Figures 17a and 17b are schematic diagrams of the camera optical lens 50 in the fifth embodiment. The fifth embodiment is basically the same as the first embodiment, and the symbols have the same meanings as in the first embodiment. Only the differences are listed below.

[0253] Tables 13-15 show the design data of the camera optical lens 50 according to the fifth embodiment of the present invention.

[0254] Table 13

[0255] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 4.9, “dp1-02” = 4.6.

[0256] Table 14 lists the relevant optical parameters of the camera lens 50 in the first state and the second state of the fifth embodiment of the present invention.

[0257] Table 14

[0258] Table 15 lists the conic coefficient k and aspherical coefficient of the camera optical lens 50 according to the fifth embodiment of the present invention.

[0259] Table 15

[0260] In addition, Table 19 below lists the values ​​of various parameters and the parameters specified in the conditional expressions in the fifth embodiment.

[0261] Figures 18a and 18b show schematic diagrams of field curvature and distortion of light with a wavelength of 555 nm after passing through the camera optical lens 50 of the fifth embodiment; Figures 19a and 19b show schematic diagrams of axial aberration of light with wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 50 of the fifth embodiment; Figures 20a and 20b show schematic diagrams of magnification chromatic aberration of light with wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 50 of the fifth embodiment.

[0262] As shown in Table 19, the fifth embodiment satisfies all the conditional expressions.

[0263] In this embodiment, the entrance pupil diameter of the camera optical lens 50 in the first state is 7.068 mm, the full field of view image height is 3.600 mm, and the diagonal field of view is 24.95°. The camera optical lens 50 meets the characteristics of having a large aperture, long focal length, and miniaturization. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical performance.

[0264] Sixth Implementation Method

[0265] The first prism P1 has positive refractive force, and its object side is convex near the axis, and its image side is convex near the axis.

[0266] 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;

[0267] 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.

[0268] 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.

[0269] The fourth lens L4 has positive refractive power; its object side is convex near the axis, and its image side is concave near the axis.

[0270] 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.

[0271] Figures 21a and 21b are schematic diagrams of the camera optical lens 60 in the sixth embodiment. The sixth embodiment is basically the same as the first embodiment, and the symbols have the same meanings as in the first embodiment. Only the differences are listed below.

[0272] Tables 16-18 show the design data of the camera optical lens 60 according to the sixth embodiment of the present invention.

[0273] Table 16

[0274] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 4.9, “dp1-02” = 4.6.

[0275] Table 17 lists the relevant optical parameters of the camera optical lens 60 in the first state and the second state according to the sixth embodiment of the present invention.

[0276] Table 17

[0277] Table 18 lists the conic coefficient k and aspherical coefficient of the camera optical lens 60 according to the sixth embodiment of the present invention.

[0278] Table 18

[0279] In addition, Table 19 below lists the values ​​of various parameters and the parameters specified in the conditional expressions in the sixth embodiment.

[0280] Figures 22a and 22b show schematic diagrams of field curvature and distortion of light with a wavelength of 555 nm after passing through the camera optical lens 60 of the sixth embodiment; Figures 23a and 23b show schematic diagrams of axial aberration of light with wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 60 of the sixth embodiment; Figures 24a and 24b show schematic diagrams of magnification chromatic aberration of light with wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 60 of the sixth embodiment.

[0281] As shown in Table 19, the sixth embodiment satisfies all the conditional expressions.

[0282] In this embodiment, the entrance pupil diameter of the camera optical lens 60 in the first state is 6.904 mm, the full field of view image height is 3.600 mm, and the diagonal field of view is 25.11°. The camera optical lens 60 meets the characteristics of having a large aperture, long focal length, and miniaturization. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical performance.

[0283] Table 19

[0284] The camera optical lens provided by the embodiments of the present invention has been described in detail above. Specific examples have been used to illustrate the principle and implementation of the present invention. The above description of the embodiments is only for the purpose of helping to understand the idea of ​​the present invention. There may be changes in the specific implementation and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

A camera optical lens comprises, 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 with negative refractive power, arranged sequentially from the object side to the image side; a reflective surface is provided between the object side and the image side of the first prism; the first lens and the second lens constitute a first lens group, and the third, fourth, and fifth lenses constitute a second lens group; the first lens group is adjustable and movable along the optical axis of the camera optical lens, allowing the camera optical lens to switch between a first state and a second state, wherein... The camera optical lens has the largest focal length in the first state and the smallest focal length in the second state; 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 radius of curvature of the object-side surface of the first prism is Rp1, the radius of curvature of the image-side surface of the first prism is Rp2, the axial thickness of the first lens is d1, the axial thickness of the second lens is d3, the radius of curvature of the object-side surface of the fourth lens is R7, and the radius of curvature of the image-side surface of the fourth lens is R8, and the following relationship is satisfied: 4.00≤fA / IH≤4.60; -4.00≤Rp1 / Rp2≤-0.14; 0.30≤d1 / d3≤1.20; -2.90≤(R7+R8) / (R7-R8)≤-1.

20. The camera optical lens according to claim 1, wherein, The camera optical lens satisfies the following relationship: 4.38≤fA / IH≤4.53; -3.90≤Rp1 / Rp2≤-0.14; -2.90≤(R7+R8) / (R7-R8)≤-1.

19. The camera optical lens according to claim 1, wherein, The object-side surface of the first prism is convex at the paraxial position, and the image-side surface of the first prism is convex at the paraxial position. The focal length of the first prism is fp1, and it satisfies the following relationship: 0.92≤fp1 / fA≤1.

23. The camera 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 radius of curvature of the object-side surface of the first lens is R1, the radius of curvature of the image-side surface of the first lens is R2, and the total optical length of the imaging optical lens is TTL, and satisfies the following relationship: -1.012≤f1 / fA≤-0.943; 3.33≤(R1+R2) / (R1-R2)≤4.00; 0.034≤d1 / TTL≤0.

061. The camera optical lens according to claim 1, wherein, 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 radius of curvature of the object-side surface of the second lens is R3, the radius of curvature of the image-side surface of the second lens is R4, and the total optical length of the camera lens is TTL, satisfying the following relationship: 0.412 ≤ f2 / fA ≤ 0.455; -0.094≤(R3+R4) / (R3-R4)≤-0.038; 0.050≤d3 / TTL≤0.

115. The camera optical lens according to claim 1, wherein, The object-side surface of the third lens is concave at the paraxial position, and the image-side surface of the third lens is concave at the paraxial position. The third lens has a focal length of f3, an object-side radius of curvature of R5, an image-side radius of curvature of R6, an axial thickness of d5, and a total optical length of TTL, satisfying the following relationship: -0.475≤f3 / fA≤-0.450; -0.58≤(R5+R6) / (R5-R6)≤-0.44; 0.019≤d5 / TTL≤0.

095. The camera optical lens according to claim 1, wherein, The object-side surface of the fourth lens is convex at the paraxial position, and the image-side surface of the fourth lens is concave at the paraxial position. The fourth lens has a focal length of f4, an on-axis thickness of d7, and a total optical length of TTL, satisfying the following relationship: 0.98 ≤ f4 / fA ≤ 1.15; 0.041≤d7 / TTL≤0.

103. The camera optical lens according to claim 1, wherein, The third lens has an on-axis thickness of d5, and the fourth lens has an on-axis thickness of d7, satisfying the following relationship: 0.25≤d5 / d7≤1.

15. The camera optical lens according to claim 8, wherein, The camera optical lens satisfies the following relationship: 0.29≤d5 / d7≤1.

15. The camera optical lens according to claim 1, wherein, The object-side surface of the fifth lens is convex at the paraxial position, and the image-side surface of the fifth lens is concave at the paraxial position. The fifth lens has a focal length of f5, an object-side radius of curvature of R9, and an image-side radius of curvature of R10, and satisfies the following relationship: -1.93≤f5 / fA≤-1.29; 4.31≤(R9+R10) / (R9-R10)≤6.

33. The camera optical lens according to claim 1, wherein, The first prism is made of glass.

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