Imaging optical lens

Abstract

An imaging optical lens (10, 20, 30, 40, 50, 60, 70, 80), comprising 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), wherein the first lens (L1), the second lens (L2), the third lens (L3), and the fourth lens (L4) form a first lens group, and the fifth lens (L5) forms a second lens group. The first lens group is movable along an optical axis of the imaging optical lens (10, 20, 30, 40, 50, 60, 70, 80), such that the imaging optical lens (10, 20, 30, 40, 50, 60, 70, 80) is switched between a first state and a second state. The imaging optical lens (10, 20, 30, 40, 50, 60, 70, 80) in the first state has the largest focal length, and the imaging optical lens (10, 20, 30, 40, 50, 60, 70, 80) in the second state has the smallest focal 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 and achieve 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, a first lens, 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; a reflective surface is provided between the object side and the image side of the first prism; the first lens, the second lens, the third lens, and the fourth lens constitute a first lens group, and the fifth lens constitutes 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 focal length of the camera optical lens is largest in the first state and smallest in the second state; the focal length of the camera optical lens in the first state is fA, and the camera... The image height of the optical lens is IH, the total optical length of the camera optical lens is TTL, 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 focal length of the first lens is f1, the axial thickness of the first lens is d1, the focal length of the fourth lens is f4, the radius of curvature of the image-side surface of the fourth lens is R8, 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 axial distance from the image-side surface of the fifth lens to the imaging plane of the camera optical lens in the first state is BF, and satisfies the following relationships: 4.00≤fA / IH≤5.10; -4.00≤Rp1 / Rp2≤0.71; -24.00≤f1 / d1≤2.60; 0.12≤BF / TTL≤0.35; 0.20≤f4 / R8-f5 / R9≤4.30.

[0006] Optionally, the camera optical lens satisfies the following relationships: 4.61≤fA / IH≤5.08; -2.60≤Rp1 / Rp2≤0.71; -23.82≤f1 / d1≤2.59; 0.14≤BF / TTL≤0.35; 0.21≤f4 / R8-f5 / R9≤4.26.

[0007] Optionally, the object-side surface of the first prism is convex or concave near the axis; the focal length of the first prism is fp1, and satisfies the following relationship: -27.20≤fp1 / fA≤139.44.

[0008] Optionally, the object-side surface of the first lens is concave near the axis, and the image-side surface of the first lens is convex near the axis; the radius of curvature of the object-side surface of the first lens is R1, and the radius of curvature of the image-side surface of the first lens is R2, and they satisfy the following relationships: -6.94≤f1 / fA≤0.88; -5.98≤(R1+R2) / (R1-R2)≤2.67; 0.121≤d1 / TTL≤0.154.

[0009] Optionally, the image-side surface of the second lens is convex near the axis; 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 on-axis thickness of the second lens is d3, and the following relationships are satisfied: 0.21≤f2 / fA≤0.40; 0.19≤(R3+R4) / (R3-R4)≤2.02; 0.06≤d3 / TTL≤0.16.

[0010] Optionally, the object-side surface of the third lens is concave near the axis, and the image-side surface of the third lens is concave near the axis; 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, and the axial thickness of the third lens is d5, and the following relationships are satisfied: -0.34≤f3 / fA≤-0.14; -0.63≤(R5+R6) / (R5-R6)≤0.44.

[0011] Optionally, the image-side surface of the fourth lens is convex near the axis; the radius of curvature of the object-side surface of the fourth lens is R7, and the axial thickness of the fourth lens is d7, satisfying the following relationships: 1.05≤f4 / fA≤3.84; 0.40≤(R7+R8) / (R7-R8)≤4.02; 0.022≤d7 / TTL≤0.057.

[0012] Optionally, the object-side radius of curvature of the fifth lens is R9, the image-side radius of curvature of the fifth lens is R10, and the axial thickness of the fifth lens is d9, satisfying the following relationships: -4.98≤f5 / fA≤11.68; 3.39≤(R9+R10) / (R9-R10)≤7.27; 0.02≤d9 / TTL≤0.21.

[0013] Optionally, the aperture number of the camera optical lens in the first state is FNO, and satisfies the following relationship: 2.07≤FNO≤2.29.

[0014] Optionally, the first prism is made of glass.

[0015] The beneficial effects of this invention are as follows: By dividing the five-element lens into two groups, the front group moves to focus, resulting in a faster and smoother focusing process, while maintaining the physical length of the optical lens, which helps in the allocation of internal space; specifying the ratio of focal length to 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; specifying the concave and convex shape of the first prism helps to mitigate the degree of light deflection after passing through the first prism, which helps to ensure smooth subsequent propagation; specifying the ratio of focal length to thickness of the first lens helps to buffer the change in the incident angle of light with a large angle of view, allowing it to propagate smoothly in the optical lens, while maintaining the refractive power of the first lens to improve chromatic aberration and enhance image quality; specifying the ratio of the distance from the fifth lens to the imaging plane to the total optical length of the optical lens in the first state, while achieving miniaturization, the back focal length of the optical lens is beneficial for the assembly of the optical lens, and at the same time, the total optical length of the optical lens can be effectively controlled; by effectively controlling the degree of deflection of the edge field of view by the fourth and fifth lenses, the sensitivity of the entire optical lens is reduced. Attached Figure Description

[0016] 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.

[0017] Figure 1a is a schematic diagram of the camera optical lens of the first embodiment of the present invention in the first state;

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

[0019] 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.

[0020] 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.

[0021] Figure 5a is a schematic diagram of the camera optical lens of the second embodiment of the present invention in the first state;

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

[0023] 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.

[0024] 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.

[0025] Figure 9a is a schematic diagram of the camera optical lens in the first state according to the third embodiment of the present invention;

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

[0027] 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.

[0028] 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.

[0029] Figure 13a is a schematic diagram of the camera optical lens in the first state according to the fourth embodiment of the present invention;

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

[0031] 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.

[0032] 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.

[0033] Figure 17a is a schematic diagram of the camera optical lens in the first state according to the fifth embodiment of the present invention;

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

[0035] 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.

[0036] 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.

[0037] Figure 21a is a schematic diagram of the camera optical lens in the first state according to the sixth embodiment of the present invention;

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

[0039] 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.

[0040] 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.

[0041] Figure 25a is a schematic diagram of the camera optical lens in the first state according to the seventh embodiment of the present invention;

[0042] Figure 25b is a schematic diagram of the camera optical lens in the second state according to the seventh embodiment of the present invention;

[0043] Figures 26a, 27a, and 28a are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 25a, respectively.

[0044] Figures 26b, 27b, and 28b are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 25b, respectively.

[0045] Figure 29a is a schematic diagram of the camera optical lens in the first state according to the eighth embodiment of the present invention;

[0046] Figure 29b is a schematic diagram of the camera optical lens in the second state according to the eighth embodiment of the present invention;

[0047] Figures 30a, 31a, and 32a are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 29a, respectively.

[0048] Figures 30b, 31b, and 32b are schematic diagrams of field curvature and distortion, axial aberration, and magnification chromatic aberration of the camera optical lens shown in Figure 29b, respectively. Detailed Implementation

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] Please refer to Figures 1a, 1b, 5a, 5b, 9a, 9b, 13a, 13b, 17a, 17b, 21a, 21b, 25a, 25b, 29a, and 29b. The technical solution of this invention provides a camera optical lens 10, 20, 30, 40, 50, 60, 70, and 80. This camera optical lens 10, 20, 30, 40, 50, 60, 70, and 80 is composed of a first prism P1, a first lens L1, 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. The object side surface of the first prism P1 and... A reflective surface is provided between the image sides; the first lens L1, the second lens L2, the third lens L3, and the fourth lens L4 constitute the first lens group, and the fifth lens L5 constitutes 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, 60, 70, and 80, so that the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 can switch between a first state and a second state, wherein the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 have the largest focal length in the first state, and the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 have the smallest focal length in the second state.

[0055] The focal length of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 in the first state is fA; the image height of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 is IH; the total optical length of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 is TTL; 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; and the... Lens L1 has a focal length of f1 and an on-axis thickness of d1. Lens L4 has a focal length of f4 and an image-side radius of curvature of R8. Lens L5 has a focal length of f5 and an object-side radius of curvature of R9. The on-axis distance from the image-side of lens L5 to the imaging planes of the imaging lenses 10, 20, 30, 40, 50, 60, 70, and 80° in the first state is BF, and the following relationship is satisfied:

[0056] 4.00≤fA / IH≤5.10 (1)

[0057] -4.00≤Rp1 / Rp2≤0.71 (2)

[0058] -24.00≤f1 / d1≤2.60 (3)

[0059] 0.12≤BF / TTL≤0.35 (4)

[0060] 0.20≤f4 / R8-f5 / R9≤4.30 (5)

[0061] Among them, camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 are periscope optical lenses with five-element lenses. The five-element lenses of camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 are the first lens L1, the second lens L2, the third lens L3, the fourth lens L4, and the fifth lens L5, respectively. The five-element lenses are divided into two groups (four lenses + one lens), 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.

[0062] The first lens group is the front group, consisting of a first lens L1, a second lens L2, a third lens L3, and a fourth lens L4. 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 fourth lens L4. The second lens group is the rear group, consisting of a fifth lens L5. The object-side surface of the second lens group is the same as the object-side surface of the fifth lens L5, and the image-side surface of the second lens group is the same as the image-side surface of the fifth lens L5.

[0063] 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, 60, 70, and 80, making 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, adjustable. Thus, the first lens group is a zoomable group, and the second lens group is a fixed-focal-length group. By moving the first lens group, the focal length of the imaging optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 can be changed, allowing the imaging optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 to have good imaging effects in both the first and second states. The first state refers to the maximum focal length of the camera lenses 10, 20, 30, 40, 50, 60, 70, and 80mm, while the second state refers to the minimum focal length of the camera lenses 10, 20, 30, 40, 50, 60, 70, and 80mm. 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 camera lenses 10, 20, 30, 40, 50, 60, 70, and 80mm can achieve in-focusing by moving the front group for focusing.

[0064] 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, 60, 70, and 80 in the first state. Within the range defined by condition (1), camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 have a longer focal length fA when the image height IH is fixed, which helps to improve the magnification of camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80. For example, 4.61≤fA / IH≤5.08.

[0065] 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, which helps to facilitate smooth subsequent propagation. For example, -2.60≤Rp1 / Rp2≤0.71.

[0066] Condition (3) specifies the range of the ratio of the focal length f1 of the first lens L1 to the on-axis thickness d1 of the first lens L1. Within the range defined by condition (3), it helps to buffer the change in the incident angle of light with a large angle of view, so that it can be smoothly propagated in the camera optical lenses 10, 20, 30, 40, 50, 60, 70, 80, while maintaining the refractive power of the first lens L1 to improve chromatic aberration and enhance imaging quality. For example, -23.82≤f1 / d1≤2.59.

[0067] Condition (4) specifies the range of the ratio between the shortest distance BF on the axis from the image side of the fifth lens L5 to the imaging plane Si in the first state and the total optical length TTL of the imaging optical lenses 10, 20, 30, 40, 50, 60, 70, and 80. Within the range defined by condition (4), the back focal length of the imaging optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 is beneficial to the assembly of the imaging optical lenses 10, 20, 30, 40, 50, 60, 70, and 80, while effectively controlling the total length of the imaging optical lenses 10, 20, 30, 40, 50, 60, 70, and 80. For example, 0.14≤BF / TTL≤0.35.

[0068] Condition (5) specifies the range of values ​​for f4 / R8-f5 / R9. Within the range defined by condition (5), the degree of deflection of the edge field of view in the fourth lens L4 and the fifth lens L5 can be effectively controlled, thereby reducing the sensitivity of the entire camera optical lens 10, 20, 30, 40, 50, 60, 70, 80. For example, 0.21≤f4 / R8-f5 / R9≤4.26.

[0069] The beneficial effects of this invention are as follows: By dividing the five-element lens into two groups, the front group moves to focus, resulting in a faster and smoother focusing process. Simultaneously, the physical lengths of the imaging optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 can remain constant, which helps in the allocation of internal space within the device. Specifying the ratio of focal length to image height for the imaging optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 in the first state, the imaging optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 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, 60, 70, and 80. Specifying the concave-convex shape of the first prism P1 helps to mitigate the degree of light deflection after passing through the first prism P1, contributing to smooth subsequent propagation. Specifying the ratio of focal length to thickness of the first lens L1 helps to buffer changes in the incident angle of light at large angles of view. This allows the light to propagate smoothly within the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80, while maintaining the refractive power of the first lens L1 to improve chromatic aberration and enhance image quality. The ratio of the distance from the fifth lens L5 to the imaging plane to the total optical length of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 is specified. Based on miniaturization, the camera optical lenses 10, 20, 30, 40, 50, 60, and 80... The back focal lengths of 70 and 80 are beneficial for the assembly of camera optical lenses of 10, 20, 30, 40, 50, 60, 70, and 80, and can effectively control the overall length of camera optical lenses of 10, 20, 30, 40, 50, 60, 70, and 80; by effectively controlling the degree of deflection of the edge field of view at the fourth lens L4 and the fifth lens L5, the sensitivity of the entire camera optical lens of 10, 20, 30, 40, 50, 60, 70, and 80 is reduced.

[0070] Based on the above conditional expressions and the functions that can be achieved, the characteristics of each lens are further refined as follows.

[0071] Optionally, the focal length of the first prism P1 is fp1, and 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, satisfying the following relationship:

[0072] -27.20≤fp1 / fA≤139.44 (6)

[0073] 0.244≤dp1 / TTL≤0.246 (7)

[0074] Condition (6) 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, 60, 70, and 80 in the first state. Within the range defined by condition (6), it helps to improve the optical performance of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80.

[0075] Condition (7) specifies the range of the ratio between the axial thickness dp1 of the object side surface of the first prism P1 to the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80. Within the range defined by condition (7), it is beneficial to control the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80, thereby realizing the miniaturization design of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80.

[0076] The object-side surface of the first prism P1 is either convex or concave near the axis, and the image-side surface of the first prism P1 is either concave, convex, or flat near the axis. The object-side and image-side surfaces of the first prism P1 can also be configured with other concave or convex distributions.

[0077] Optionally, the radius of curvature of the object-side surface of the first lens L1 is R1, and the radius of curvature of the image-side surface of the first lens L1 is R2, satisfying the following relationship:

[0078] -6.94≤f1 / fA≤0.88 (8)

[0079] -5.98≤(R1+R2) / (R1-R2)≤2.67 (9)

[0080] 0.121≤d1 / TTL≤0.154 (10)

[0081] Condition (8) 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, 60, 70, and 80 in the first state. Within the range defined by condition (8), controlling the optical power of the first lens L1 within a reasonable range is beneficial for correcting the aberrations of the optical system.

[0082] Condition (9) specifies the concave and convex shapes of the object side and image side of the first lens L1. Within the range defined by condition (9), as the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 develop towards miniaturization, it is beneficial to correct the problem of on-axis chromatic aberration.

[0083] Condition (10) specifies the range of the ratio 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, 60, 70, and 80. Within the range defined by condition (10), it is beneficial to control the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80, thereby realizing the miniaturization design of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80.

[0084] The object-side surface of the first lens L1 is concave near the axis, and the image-side surface of the first lens L1 is convex 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.

[0085] 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, the radius of curvature of the image side of the second lens L2 is R4, and the on-axis thickness of the second lens L2 is d3, and the following relationship is satisfied:

[0086] 0.21≤f2 / fA≤0.40 (11)

[0087] 0.19≤(R3+R4) / (R3-R4)≤2.02 (12)

[0088] 0.06≤d3 / TTL≤0.16 (13)

[0089] Condition (11) 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, 60, 70, and 80 in the first state. Within the range defined by condition (11), 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, 60, 70, and 80.

[0090] Condition (12) specifies the concave and convex shapes of the object side and image side of the second lens L2. Within the range defined by condition (12), as the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 develop towards miniaturization, it is beneficial to correct the problem of on-axis chromatic aberration.

[0091] Condition (13) 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, 60, 70, and 80. Within the range defined by condition (13), it is beneficial to control the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80, thereby realizing the miniaturization design of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80.

[0092] The object-side surface of the second lens L2 is either convex or concave near the axis, and the image-side surface of the second lens L2 is convex near the axis. The object-side and image-side surfaces of the second lens L2 can also be configured with other concave or convex distributions.

[0093] Optionally, the focal length of the third lens L3 is f3, the radius of curvature of the object side of the third lens L3 is R5, the radius of curvature of the image side of the third lens L3 is R6, and the on-axis thickness of the third lens L3 is d5, and the following relationship is satisfied:

[0094] -0.34≤f3 / fA≤-0.14 (14)

[0095] -0.63≤(R5+R6) / (R5-R6)≤0.44 (15)

[0096] 0.022≤d5 / TTL≤0.027 (16)

[0097] Condition (14) 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, 60, 70, and 80 in the first state. Within the range defined by condition (14), the system has better imaging quality and lower sensitivity through reasonable allocation of optical power.

[0098] Condition (15) specifies the concave and convex shapes of the object side and image side of the third lens L3. Within the range defined by condition (15), the degree of light deflection after passing through the lens can be mitigated, effectively reducing aberrations.

[0099] Condition (16) 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, 60, 70, and 80. Within the range defined by condition (16), it is beneficial to control the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80, thereby realizing the miniaturization design of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80.

[0100] 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.

[0101] Optionally, the radius of curvature of the object-side surface of the fourth lens L4 is R7, and the on-axis thickness of the fourth lens L4 is d7, satisfying the following relationship:

[0102] 1.05≤f4 / fA≤3.84 (17)

[0103] 0.40≤(R7+R8) / (R7-R8)≤4.02 (18)

[0104] 0.022≤d7 / TTL≤0.057 (19)

[0105] Condition (17) 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, 60, 70, and 80 in the first state. Within the range defined by condition (17), the system has better imaging quality and lower sensitivity through reasonable allocation of optical power.

[0106] Condition (18) specifies the concave and convex shapes of the object side and image side of the fourth lens L4. Within the range defined by condition (18), it is beneficial to mitigate the degree of deflection of light rays passing through the fourth lens L4 and can effectively reduce aberrations.

[0107] Condition (19) 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, 60, 70, and 80. Within the range defined by condition (19), it is beneficial to control the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80, thereby realizing the miniaturization design of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80.

[0108] The image-side surface of the fourth lens L4 is either convex or concave near the axis, and is convex near the axis. The object-side and image-side surfaces of the fourth lens L4 can also be configured with other concave or convex distributions.

[0109] Optionally, the object-side radius of curvature of the fifth lens L5 is R9, the image-side radius of curvature of the fifth lens L5 is R10, and the axial thickness of the fifth lens is d9, satisfying the following relationship:

[0110] -4.98≤f5 / fA≤11.68 (20)

[0111] 3.39≤(R9+R10) / (R9-R10)≤7.27 (21)

[0112] 0.02≤d9 / TTL≤0.21 (22)

[0113] Condition (20) 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, 60, 70, and 80 in the first state. Within the range defined by condition (20), the light angles of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 are made smooth, reducing tolerance sensitivity.

[0114] Condition (21) specifies the concave and convex shapes of the object side and image side of the fifth lens L5. Within the range defined by condition (21), as the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 develop towards miniaturization, it is beneficial to correct the problem of on-axis chromatic aberration.

[0115] Condition (22) specifies the range of ratios between the on-axis thickness d9 of the fifth lens L5 and the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80. Within the range defined by condition (22), it is beneficial to control the total optical length TTL of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80, thereby realizing the miniaturization design of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80.

[0116] The object-side surface of the fifth lens L5 is either convex or concave near the axis, and the image-side surface of the fifth lens L5 is either concave or convex near the axis. The object-side and image-side surfaces of the fifth lens L5 can also be configured with other concave or convex distributions.

[0117] Optionally, the aperture number of the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 in the first state is FNO, and satisfies the following relationship:

[0118] 2.07≤FNO≤2.29 (23)

[0119] Condition (23) specifies the aperture number FNO of the camera optical lens 10, 20, 30, 40, 50, 60, 70, 80. Within the range defined by condition (23), it can be guaranteed that the camera optical lens 10, 20, 30, 40, 50, 60, 70, 80 has a large aperture.

[0120] 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.

[0121] 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.

[0122] In this invention, an aperture ST may also be provided between the first prism P1 and the first lens L1.

[0123] The following examples illustrate the camera optical lenses 10, 20, 30, 40, 50, 60, 70, and 80 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.

[0124] TTL: Total optical length (axial distance from the object surface of the first prism P1 to the imaging surface), in millimeters.

[0125] First Implementation Method

[0126] 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.

[0127] The first lens L1 has positive refractive power, its object side is concave near the axis, and its image side is convex near the axis;

[0128] The second lens L2 has positive refractive power, its object side is concave near the axis, and its image side is convex near the axis;

[0129] 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.

[0130] The fourth lens L4 has positive refractive power; its object side is concave near the axis, and its image side is convex near the axis.

[0131] 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.

[0132] 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.

[0133] Table 1 lists the radius of curvature Rp, on-axis thickness of the lenses, 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).

[0134] Table 1

[0135] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.0, “dp1-02” = 4.8.

[0136] 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.

[0137] Table 2

[0138] The meanings of the symbols in the table above are as follows.

[0139] R: Radius of curvature of the optical surface; for lenses, it is the central radius of curvature.

[0140] ST: Aperture;

[0141] Rp1: Radius of curvature of the object-side surface of the first prism P1;

[0142] Rp2: Radius of curvature of the image side of the first prism P1;

[0143] R1: The radius of curvature of the object-side surface of the first lens L1;

[0144] R2: The radius of curvature of the image-side surface of the first lens L1;

[0145] R3: The radius of curvature of the object-side surface of the second lens L2;

[0146] R4: Radius of curvature of the image-side surface of the second lens L2;

[0147] R5: The radius of curvature of the object-side surface of the third lens L3;

[0148] R6: Radius of curvature of the image-side surface of the third lens L3;

[0149] R7: The radius of curvature of the object-side surface of the fourth lens L4;

[0150] R8: Radius of curvature of the image-side surface of the fourth lens L4;

[0151] R9: The radius of curvature of the object-side surface of the fifth lens L5;

[0152] R10: Radius of curvature of the image-side surface of the fifth lens L5;

[0153] R11: Radius of curvature of the object-side surface of the optical filter GF;

[0154] R12: Radius of curvature of the image-side surface of the optical filter GF;

[0155] d: Axial thickness of the lens, axial distance between lenses;

[0156] d0: The on-axis distance from aperture ST to the object-side surface of the first prism P1;

[0157] 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;

[0158] dp1-01: The axial distance from the object-side surface of the first prism P1 to the reflecting surface;

[0159] dp1-02: The on-axis distance from the reflecting surface of the first prism P1 to the image side surface;

[0160] 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;

[0161] d1: On-axis thickness of the first lens L1;

[0162] 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;

[0163] d3: On-axis thickness of the second lens L2;

[0164] d4: The axial distance from the image-side surface of the second lens L2 to the object-side surface of the third lens L3;

[0165] d5: On-axis thickness of the third lens L3;

[0166] 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;

[0167] d7: On-axis thickness of the fourth lens L4;

[0168] d8: The axial distance from the image-side surface of the fourth lens L4 to the object-side surface of the fifth lens L5;

[0169] d9: On-axis thickness of the fifth lens L5;

[0170] 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;

[0171] d11: On-axis thickness of the optical filter GF;

[0172] d12: The on-axis distance from the image-side surface of the optical filter GF to the imaging plane Si;

[0173] nd: Refractive index of the d-line;

[0174] nd1: The refractive index of the d-line of the first prism P1;

[0175] nd2: The refractive index of the d-line of the first lens L1;

[0176] nd3: The refractive index of the d-line of the second lens L2;

[0177] nd4: The refractive index of the d-line of the third lens L3;

[0178] nd5: The refractive index of the d-line of the fourth lens L4;

[0179] nd6: The refractive index of the d-line of the fifth lens L5;

[0180] ndg: The refractive index of the d-line of the optical filter GF;

[0181] vd: Abbe number;

[0182] vd1: Abbe number of the first prism P1;

[0183] vd2: Abbe number of the first lens L1;

[0184] vd3: Abbe number of the second lens L2;

[0185] vd4: Abbe number of the third lens L3;

[0186] vd5: Abbe number of the fourth lens L4;

[0187] vd6: Abbe number of the fifth lens L5;

[0188] vdg: Abbe number of the GF of the optical filter.

[0189] 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.

[0190] Table 3

[0191] It should be noted that the aspherical surface of each lens in this embodiment uses the aspherical surface shown in the following conditional expression (24). However, the specific form of the following conditional expression (24) is only an example. In fact, the present invention is not limited to the aspherical polynomial form indicated in conditional expression (24).

[0192] 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 (twenty four)

[0193] Where k is the conic coefficient, and A4, A6, A8, A10, A12, A14, A16, A18, A20, and A22 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 r on the aspheric surface at a distance r from the optical axis and a tangent plane at the vertex of the aspheric optical axis).

[0194] In addition, Table 25 below lists the values ​​of various parameters and the parameters specified in the conditional expressions in the first embodiment.

[0195] Figures 2a and 2b show schematic diagrams of field curvature and distortion after light with a wavelength of 555 nm passes through the camera optical lens 10 of the first embodiment; Figures 3a and 3b show schematic diagrams of axial aberration after light with wavelengths of 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm passes through the camera optical lens 10 of the first embodiment; Figures 4a and 4b show schematic diagrams of magnification chromatic aberration after light with wavelengths of 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm passes through the camera optical lens 10 of the first embodiment.

[0196] As shown in Table 25, the first embodiment satisfies all the conditional expressions.

[0197] In this embodiment, the entrance pupil diameter of the camera optical lens 10 in the first state is 8.000 mm, the full field of view image height is 3.600 mm, and the diagonal field of view is 22.29°. 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.

[0198] Second Implementation Method

[0199] 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.

[0200] The first lens L1 has positive refractive power, its object side is concave near the axis, and its image side is convex near the axis;

[0201] The second lens L2 has positive refractive power, its object side is concave near the axis, and its image side is convex near the axis;

[0202] 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.

[0203] The fourth lens L4 has positive refractive power; its object side is concave near the axis, and its image side is convex near the axis.

[0204] 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.

[0205] 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.

[0206] Tables 4-6 show the design data of the camera optical lens 20 according to the second embodiment of the present invention.

[0207] Table 4

[0208] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.0, “dp1-02” = 4.8.

[0209] 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.

[0210] Table 5

[0211] 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.

[0212] Table 6

[0213] In addition, Table 25 below lists the values ​​of various parameters and the parameters specified in the conditional expressions in the second embodiment.

[0214] 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 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 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 20 of the second embodiment.

[0215] As shown in Table 25, the second embodiment satisfies all the conditional expressions.

[0216] In this embodiment, the entrance pupil diameter of the camera optical lens 20 in the first state is 8.000 mm, the full field of view image height is 3.600 mm, and the diagonal field of view is 22.42°. 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.

[0217] Third Implementation Method

[0218] 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.

[0219] The first lens L1 has positive refractive power, its object side is concave near the axis, and its image side is convex near the axis;

[0220] The second lens L2 has positive refractive power, its object side is concave near the axis, and its image side is convex near the axis;

[0221] 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.

[0222] The fourth lens L4 has positive refractive power; its object side is concave near the axis, and its image side is convex near the axis.

[0223] The fifth lens L5 has positive refractive power. Its object side is concave near the axis, and its image side is convex near the axis.

[0224] 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.

[0225] Tables 7-9 show the design data of the camera optical lens 30 according to the third embodiment of the present invention.

[0226] Table 7

[0227] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.0, “dp1-02” = 4.8.

[0228] 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.

[0229] Table 8

[0230] 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.

[0231] Table 9

[0232] In addition, Table 25 below lists the values ​​of various parameters and the parameters specified in the conditional expressions in the third embodiment.

[0233] 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 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 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 30 of the third embodiment.

[0234] As shown in Table 25, the third embodiment satisfies all the conditional expressions.

[0235] In this embodiment, the entrance pupil diameter of the camera optical lens 30 in the first state is 8.000 mm, the full field of view image height is 3.600 mm, and the diagonal field of view is 22.20°. 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.

[0236] Fourth Implementation Method

[0237] The first prism P1 has a negative refractive force, its object side is concave near the axis, and its image side is planar near the axis;

[0238] The first lens L1 has negative refractive power, its object side is concave near the axis, and its image side is convex near the axis;

[0239] 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.

[0240] 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.

[0241] 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.

[0242] 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.

[0243] 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.

[0244] Tables 10-12 show the design data of the camera optical lens 40 according to the fourth embodiment of the present invention.

[0245] Table 10

[0246] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.0, “dp1-02” = 4.8.

[0247] 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.

[0248] Table 11

[0249] 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.

[0250] Table 12

[0251] In addition, Table 25 below lists the values ​​of various parameters and the parameters specified in the conditional expressions in the fourth embodiment.

[0252] 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 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 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 40 of the fourth embodiment.

[0253] As shown in Table 25, the fourth embodiment satisfies all the conditional expressions.

[0254] In this embodiment, the entrance pupil diameter of the camera optical lens 40 in the first state is 8.000 mm, the full field of view image height is 3.600 mm, and the diagonal field of view is 23.91°. 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.

[0255] Fifth Implementation Method

[0256] 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.

[0257] The first lens L1 has negative refractive power, its object side is concave near the axis, and its image side is convex near the axis;

[0258] 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.

[0259] 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.

[0260] 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.

[0261] 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.

[0262] 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.

[0263] Tables 13-15 show the design data of the camera optical lens 50 according to the fifth embodiment of the present invention.

[0264] Table 13

[0265] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.0, “dp1-02” = 4.8.

[0266] 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.

[0267] Table 14

[0268] 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.

[0269] Table 15

[0270] In addition, Table 25 below lists the values ​​of various parameters and the parameters specified in the conditional expressions in the fifth embodiment.

[0271] 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 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 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 50 of the fifth embodiment.

[0272] As shown in Table 25, the fifth embodiment satisfies all the conditional expressions.

[0273] In this embodiment, the entrance pupil diameter of the camera optical lens 50 in the first state is 8.000 mm, the full field of view image height is 3.600 mm, and the diagonal field of view is 23.08°. 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.

[0274] Sixth Implementation Method

[0275] 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.

[0276] The first lens L1 has negative refractive power, its object side is concave near the axis, and its image side is convex near the axis;

[0277] 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.

[0278] 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.

[0279] 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.

[0280] 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.

[0281] 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.

[0282] Tables 16-18 show the design data of the camera optical lens 60 according to the sixth embodiment of the present invention.

[0283] Table 16

[0284] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.0, “dp1-02” = 4.8.

[0285] 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.

[0286] Table 17

[0287] 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.

[0288] Table 18

[0289] In addition, Table 25 below lists the values ​​of various parameters and the parameters specified in the conditional expressions in the sixth embodiment.

[0290] 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 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 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 60 of the sixth embodiment.

[0291] As shown in Table 25, the sixth embodiment satisfies all the conditional expressions.

[0292] In this embodiment, the entrance pupil diameter of the camera optical lens 60 in the first state is 8.000 mm, the full field of view image height is 3.600 mm, and the diagonal field of view is 22.20°. 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.

[0293] Seventh Implementation Method

[0294] 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.

[0295] The first lens L1 has negative refractive power, its object side is concave near the axis, and its image side is convex near the axis;

[0296] 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.

[0297] 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.

[0298] 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.

[0299] 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.

[0300] Figures 25a and 25b are schematic diagrams of the camera optical lens 70 in the seventh embodiment. The seventh 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.

[0301] Tables 19-21 show the design data of the camera optical lens 70 according to the seventh embodiment of the present invention.

[0302] Table 19

[0303] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.0, “dp1-02” = 4.8.

[0304] Table 20 lists the relevant optical parameters of the camera optical lens 70 in the first state and the second state of the seventh embodiment of the present invention.

[0305] Table 20

[0306] Table 21 lists the conic coefficient k and aspherical coefficient of the camera optical lens 70 according to the seventh embodiment of the present invention.

[0307] Table 21

[0308] In addition, Table 25 below lists the values ​​of various parameters and the parameters specified in the conditional expressions in the seventh embodiment.

[0309] Figures 26a and 26b show schematic diagrams of field curvature and distortion of light with a wavelength of 555 nm after passing through the camera optical lens 70 of the seventh embodiment; Figures 27a and 27b show schematic diagrams of axial aberration of light with wavelengths of 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 70 of the seventh embodiment; Figures 28a and 28b show schematic diagrams of magnification chromatic aberration of light with wavelengths of 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 70 of the seventh embodiment.

[0310] As shown in Table 25, the seventh embodiment satisfies all the conditional expressions.

[0311] In this embodiment, the entrance pupil diameter of the camera optical lens 70 in the first state is 8.000 mm, the full field of view image height is 3.600 mm, and the diagonal field of view is 22.32°. The camera optical lens 70 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.

[0312] Eighth Implementation Method

[0313] 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.

[0314] The first lens L1 has negative refractive power, its object side is concave near the axis, and its image side is convex near the axis;

[0315] 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.

[0316] 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.

[0317] 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.

[0318] 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.

[0319] Figures 29a and 29b are schematic diagrams of the camera optical lens 80 in the eighth embodiment. The eighth 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.

[0320] Tables 22-24 show the design data of the camera optical lens 80 according to the eighth embodiment of the present invention.

[0321] Table 22

[0322] Where dp1 = “dp1-01” + “dp1-02”, “dp1-01” = 5.0, “dp1-02” = 4.8.

[0323] Table 23 lists the relevant optical parameters of the camera optical lens 80 in the first state and the second state of the eighth embodiment of the present invention.

[0324] Table 23

[0325] Table 24 lists the conic coefficient k and aspherical coefficient of the camera optical lens 80 according to the eighth embodiment of the present invention.

[0326] Table 24

[0327] In addition, Table 25 below lists the values ​​of various parameters and the parameters specified in the conditional expressions in the eighth embodiment.

[0328] Figures 30a and 30b show schematic diagrams of field curvature and distortion of light with a wavelength of 555 nm after passing through the camera optical lens 80 of the eighth embodiment; Figures 31a and 31b show schematic diagrams of axial aberration of light with wavelengths of 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 80 of the eighth embodiment; Figures 32a and 32b show schematic diagrams of magnification chromatic aberration of light with wavelengths of 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the camera optical lens 80 of the eighth embodiment.

[0329] As shown in Table 25, the eighth embodiment satisfies all the conditional expressions.

[0330] In this embodiment, the entrance pupil diameter of the camera optical lens 80 in the first state is 8.000 mm, the full field of view image height is 3.600 mm, and the diagonal field of view is 22.20°. The camera optical lens 80 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.

[0331] Table 25

[0332] 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

1. A camera optical lens, comprising a first prism, a first lens, 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; a reflecting surface is provided between the object side and the image side of the first prism; the first lens, the second lens, the third lens, and the fourth lens constitute a first lens group, and the fifth lens constitutes 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 total optical length of the camera optical lens is TTL, 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 focal length of the first lens is f1, the axial thickness of the first lens is d1, the focal length of the fourth lens is f4, the radius of curvature of the image-side surface of the fourth lens is R8, 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 axial distance from the image-side surface of the fifth lens to the imaging plane of the camera optical lens in the first state is BF, and satisfies the following relationship: 4.00≤fA / IH≤5.10; -4.00≤Rp1 / Rp2≤0.71; -24.00≤f1 / d1≤2.60; 0.12≤BF / TTL≤0.35; 0.20≤f4 / R8-f5 / R9≤4.

30.

2. The camera optical lens according to claim 1, wherein, The camera optical lens satisfies the following relationships: 4.61≤fA / IH≤5.08; -2.60≤Rp1 / Rp2≤0.71; -23.82≤f1 / d1≤2.59; 0.14≤BF / TTL≤0.35; 0.21≤f4 / R8-f5 / R9≤4.

26.

3. The camera optical lens according to claim 1, wherein, The object-side surface of the first prism is convex or concave near the axis; the focal length of the first prism is fp1, and satisfies the following relationship: -27.20≤fp1 / fA≤139.

44.

4. The camera optical lens according to claim 1, wherein, The object-side surface of the first lens is concave at the paraxial position, and the image-side surface of the first lens is convex at the paraxial position. The radius of curvature of the object-side surface of the first lens is R1, and the radius of curvature of the image-side surface of the first lens is R2, and they satisfy the following relationship: -6.94≤f1 / fA≤0.88; -5.98≤(R1+R2) / (R1-R2)≤2.67; 0.121≤d1 / TTL≤0.

154.

5. The camera optical lens according to claim 1, wherein, The image-side surface of the second lens is convex at the paraxial position; The second lens has a focal length of f2, an object-side radius of curvature of R3, an image-side radius of curvature of R4, and an axial thickness of d3, and satisfies the following relationship: 0.21≤f2 / fA≤0.40; 0.19≤(R3+R4) / (R3-R4)≤2.02; 0.06≤d3 / TTL≤0.

16.

6. The camera optical lens according to claim 1, wherein, The object-side surface of the third lens is concave near the axis, and the image-side surface of the third lens is concave near the axis. 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, and an axial thickness of d5, and satisfies the following relationship: -0.34≤f3 / fA≤-0.14; -0.63≤(R5+R6) / (R5-R6)≤0.

44.

7. The camera optical lens according to claim 1, wherein, The image-side surface of the fourth lens is convex at the paraxial position; The object-side surface radius of the fourth lens is R7, and the axial thickness of the fourth lens is d7, satisfying the following relationship: 1.05≤f4 / fA≤3.84; 0.40≤(R7+R8) / (R7-R8)≤4.02; 0.022≤d7 / TTL≤0.

057.

8. The camera optical lens according to claim 1, wherein, The object-side radius of curvature of the fifth lens is R9, the image-side radius of curvature of the fifth lens is R10, and the axial thickness of the fifth lens is d9, satisfying the following relationships: -4.98≤f5 / fA≤11.68; 3.39≤(R9+R10) / (R9-R10)≤7.27; 0.02≤d9 / TTL≤0.

21.

9. The camera optical lens according to claim 1, wherein, The aperture number of the camera optical lens in the first state is FNO, and it satisfies the following relationship: 2.07≤FNO≤2.

29.

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

Images