Camera lens

Abstract

The embodiment of the present application relates to the field of optical technology, and discloses a camera optical lens, which is composed 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 can be moved to adjust: 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 five-piece lens is divided into the first lens group and the second lens group, the first lens group is moved to focus, so that the focusing mode of the in-focus of the optical lens is realized; the ratio of the focal length to the image height of the optical lens in the first state is set, the optical lens has a long focal length under the condition that the image height is fixed, which is helpful to improve the magnification of the optical lens; the concave-convex shape of the first prism and the fourth lens is set, which is beneficial to alleviate the deflection degree of light passing through the lens, and can well reduce the aberration; by reasonably distributing the thickness of the first lens and the second lens, the total optical length can be compressed.

Description

Technical Field

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

[0002] With the rapid growth and popularity of smartphones, camera research and design have advanced rapidly. Coupled with the current trend of electronic products favoring high functionality and a slim, lightweight design, miniaturized cameras with excellent imaging quality have become mainstream in the market. Internal focus cameras, due to their high stability, fast zoom, easy cleanability, and ability to overcome the wear and tear of external focus cameras, are gaining popularity in mobile phone cameras.

[0003] Furthermore, telephoto cameras can meet consumers' needs for capturing specific images. Traditional telephoto cameras have excessive optical length, which does not meet the requirements of slim and lightweight smartphone designs. While periscope telephoto camera designs can significantly shorten the overall optical length of the camera lens while still meeting the telephoto design requirements, the optical performance of existing periscope telephoto camera lenses still cannot meet these requirements. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide a camera optical lens that can compress the total optical length of the optical lens, meet the requirements of mobile focusing and realize a periscope design with a long focal length, and has good optical performance.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a camera optical lens, which is composed of a first prism with positive refractive power, a first lens with negative refractive power, a second lens with positive refractive power, a third lens with negative refractive power, a fourth lens with positive refractive power and a fifth lens with negative refractive power, which are arranged in sequence from the object side to the image side; a reflecting surface is provided between the object side surface and the image side surface of the first prism; the first lens and the second lens are a first lens group, and the third lens, the fourth lens and the fifth lens are a second lens group; the first lens group is movable and adjustable along the optical axis of the camera optical lens, so that the camera optical lens switches between a first state and a second state, wherein the camera optical lens is in the first state. The focal length of the camera optical lens in the first state is the largest, and the focal length of the camera optical lens in the second state is the smallest; 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 curvature radius of the object side surface of the first prism is Rp1, the curvature radius 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 curvature radius of the object side surface of the fourth lens is R7, the curvature radius 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.

[0006] Optionally, 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.

[0007] Optionally, the object side surface of the first prism is convex at the near axis, and the image side surface of the first prism is convex at the near axis; 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 point, and the image side surface of the first lens is concave at the paraxial point; 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, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: -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 point, and the image side surface of the second lens is convex at the paraxial point; 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, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: 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 axial thickness of the third lens is d5, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: -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 point, and the image side surface of the fourth lens is concave at the paraxial point; the focal length of the fourth lens is f4, the axial thickness of the fourth lens is d7, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: 0.98≤f4 / fA≤1.15; 0.041≤d7 / TTL≤0.103.

[0012] Optionally, the on-axis thickness of the third lens is d5, the on-axis thickness of the fourth lens is d7, and the following relationship is satisfied: 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 point, and the image side surface of the fifth lens is concave at the paraxial point; 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 relationship is 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 the present invention are as follows: by dividing the five-piece lens into a first lens group and a second lens group, the first lens group is moved for focusing, thereby realizing a focusing method of focusing within the optical lens; setting a 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; setting the concave and convex shapes of the first prism and the fourth lens is conducive to alleviating the degree of deflection of light passing through the lens, which can effectively reduce aberrations; and by reasonably allocating the thicknesses of the first lens and the second lens, it helps to compress the total optical length of the optical lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

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

[0019] Figure 1b 2 is a schematic structural diagram of the camera optical lens in the second state according to the first embodiment of the present invention;

[0020] Figure 2a 、 Figure 3a 、 Figure 4a They are Figure 1a Schematic diagram of field curvature and distortion, axial aberration, and chromatic aberration of magnification of the camera optical lens shown;

[0021] Figure 2b 、 Figure 3b 、 Figure 4b They are Figure 1b Schematic diagram of field curvature and distortion, axial aberration, and chromatic aberration of magnification of the camera optical lens shown;

[0022] Figure 5a 1 is a schematic structural diagram of a second embodiment of the imaging optical lens of the present invention in a first state;

[0023] Figure 5b 2 is a schematic structural diagram of a second embodiment of the imaging optical lens of the present invention in a second state;

[0024] Figure 6a 、 Figure 7a 、 Figure 8a They are Figure 5a Schematic diagram of field curvature and distortion, axial aberration, and chromatic aberration of magnification of the camera optical lens shown;

[0025] Figure 6b 、 Figure 7b 、 Figure 8b They are Figure 5b Schematic diagram of field curvature and distortion, axial aberration, and chromatic aberration of magnification of the camera optical lens shown;

[0026] Figure 9a 1 is a schematic structural diagram of a camera optical lens in a first state according to a third embodiment of the present invention;

[0027] Figure 9b 2 is a schematic structural diagram of a third embodiment of the imaging optical lens in a second state;

[0028] Figure 10a 、 Figure 11a 、 Figure 12a They are Figure 9a Schematic diagram of field curvature and distortion, axial aberration, and chromatic aberration of magnification of the camera optical lens shown;

[0029] Figure 10b 、 Figure 11b 、 Figure 12b They are Figure 9b Schematic diagram of field curvature and distortion, axial aberration, and chromatic aberration of magnification of the camera optical lens shown;

[0030] Figure 13a 1 is a schematic structural diagram of a fourth embodiment of the imaging optical lens in a first state;

[0031] Figure 13b 2 is a schematic structural diagram of a fourth embodiment of the imaging optical lens in a second state;

[0032] Figure 14a 、 Figure 15a 、 Figure 16a They are Figure 13a Schematic diagram of field curvature and distortion, axial aberration, and chromatic aberration of magnification of the camera optical lens shown;

[0033] Figure 14b 、 Figure 15b 、 Figure 16b They are Figure 13b Schematic diagram of field curvature and distortion, axial aberration, and chromatic aberration of magnification of the camera optical lens shown;

[0034] Figure 17a 2 is a schematic structural diagram of a camera optical lens in a first state according to a fifth embodiment of the present invention;

[0035] Figure 17b 2 is a schematic structural diagram of a fifth embodiment of the imaging optical lens in a second state;

[0036] Figure 18a 、 Figure 19a 、 Figure 20a They are Figure 17a Schematic diagram of field curvature and distortion, axial aberration, and chromatic aberration of magnification of the camera optical lens shown;

[0037] Figure 18b 、 Figure 19b 、 Figure 20b They are Figure 17b Schematic diagram of field curvature and distortion, axial aberration, and chromatic aberration of magnification of the camera optical lens shown;

[0038] Figure 21a 1 is a schematic structural diagram of a camera optical lens in a first state according to a sixth embodiment of the present invention;

[0039] Figure 21b 2 is a schematic structural diagram of a sixth embodiment of the imaging optical lens in a second state;

[0040] Figure 22a 、 Figure 23a 、 Figure 24a They are Figure 21a Schematic diagram of field curvature and distortion, axial aberration, and chromatic aberration of magnification of the camera optical lens shown;

[0041] Figure 22b 、 Figure 23b 、 Figure 24b They are Figure 21b The diagrams show the field curvature and distortion, axial aberration, and chromatic aberration of magnification of the camera optical lens. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more apparent, 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 appreciate that many technical details are provided in various embodiments of the present invention to help readers better understand the present invention. However, even without these technical details and various variations and modifications based on the following embodiments, the technical solutions claimed in the present invention can still be implemented.

[0043] In the embodiments of the present invention, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" to indicate directions or positions are based on the directions or positions shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific direction, or to being constructed or operated in a specific direction.

[0044] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0045] Furthermore, the terms "installed," "set," "provided with," "opened," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

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

[0047] See Figure 1a 、 Figure 1b 、 Figure 5a 、 Figure 5b 、 Figure 9a 、 Figure 9b 、 Figure 13a 、 Figure 13b 、 Figure 17a 、 Figure 17b 、 Figure 21a and Figure 21bThe technical solution of the present invention provides a camera optical lens 10, 20, 30, 40, 50, 60, which 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, which are arranged in sequence from the object side to the image side; a reflecting surface is provided between the object side surface and the image side surface of the first prism P1; the first lens L1 and the second lens L2 are connected to each other. Mirror L2 is the first lens group, and the third lens L3, the fourth lens L4 and the fifth lens L5 are the second lens group; the first lens group is capable of being moved and adjusted along the optical axis of the camera optical lens 10, 20, 30, 40, 50, 60, so that the camera optical lens 10, 20, 30, 40, 50, 60 can be switched between the first state and the second state, wherein the focal length of the camera optical lens 10, 20, 30, 40, 50, 60 is the largest in the first state, and the focal length of the camera optical lens 10, 20, 30, 40, 50, 60 is the smallest 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 axial thickness of the first lens L1 is d1, the axial 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 the following relationship is satisfied:

[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 lenses, and 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 in sequence from the object side to the image side.

[0054] The five-element lens elements of camera optical lenses 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. These five elements 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 first lens L1 and second lens L2. The object-side surface of the first lens group is the object-side surface of first lens L1, and the image-side surface of the first lens group is the image-side surface of second lens L2. The second lens group is the rear group, consisting of third lens L3, fourth lens L4, and fifth lens L5. The object-side surface of the second lens group is the object-side surface of third lens L3, and the image-side surface of the second lens group is the image-side surface of 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 axis of the camera optical lens 10, 20, 30, 40, 50, 60, so that the on-axis distance from the image side surface of the first prism P1 to the object side surface of the first lens group, and the on-axis distance from the image side surface of the first lens group to the object side surface of the second lens group can be adjusted. In this way, the first lens group is a mobile zoom group and the second lens group is a fixed focal length group. By moving the first lens group, the focal length of the camera optical lens 10, 20, 30, 40, 50, 60 can be changed, so that the camera optical lens 10, 20, 30, 40, 50, 60 has a good imaging effect in both the first state and the second state. Among them, the first state refers to the state where the focal length of the camera optical lens 10, 20, 30, 40, 50, 60 is the largest, and the second state refers to the state where the focal length of the camera optical lens 10, 20, 30, 40, 50, 60 is the smallest. For example, the first state can be a telephoto state, or a state where the object distance is infinite; the second state can be a short focal state or a macro state, or a state where the object distance is 200 mm. In this way, the camera optical lenses 10, 20, 30, 40, 50, and 60 can focus by moving the front group, realizing a focusing method of focusing within the camera optical lenses 10, 20, 30, 40, 50, and 60.

[0057] Conditional formula (1) specifies the range of the ratio of the focal length fA to the image height IH of the camera optical lens 10, 20, 30, 40, 50, 60 in the first state. Within the range defined by conditional formula (1), the camera optical lens 10, 20, 30, 40, 50, 60 has a longer focal length when the image height IH is fixed, which helps to improve the magnification of the camera optical lens 10, 20, 30, 40, 50, 60. More preferably, 4.38≤fA / IH≤4.53.

[0058] Conditional equation (2) specifies the range of the ratio of the radius of curvature Rp1 of the object side surface of the first prism P1 to the radius of curvature Rp2 of the image side surface of the first prism P1, and controls the concave-convex shapes of the object side surface of the first prism P1 and the image side surface of the first prism P1. Within the range defined by conditional equation (2), it is beneficial to alleviate the degree of deflection of light passing through the first prism P1. More preferably, -3.90≤Rp1 / Rp2≤-0.14.

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

[0060] Conditional equation (4) specifies the concavoconvex shapes of the object-side and image-side surfaces of fourth lens element L4. Within the range defined by conditional equation (4), the degree of light refraction caused by fourth lens element L4 is mitigated, effectively minimizing aberrations. More preferably, -2.90 ≤ (R7 + R8) / (R7 - R8) ≤ -1.19.

[0061] The beneficial effects of the present invention are as follows: by dividing the five-piece lens into a first lens group and a second lens group, the first lens group is moved for focusing, thereby realizing a focusing mode of internal focusing of the camera optical lens 10, 20, 30, 40, 50, 60; setting the ratio of the focal length to the image height of the camera optical lens 10, 20, 30, 40, 50, 60 in the first state, the camera optical lens 10, 20, 30, 40, 50, 60 has a longer focal length when the image height is fixed, which helps to improve the magnification of the camera optical lens 10, 20, 30, 40, 50, 60; setting the concave-convex shape of the first prism P1 and the fourth lens L4 is conducive to alleviating the degree of deflection of light passing through the first prism P1 and the fourth lens L4, which can effectively reduce aberrations; by reasonably allocating the thickness of the first lens L1 and the second lens L2, it helps to compress the total optical length of the camera optical lens 10, 20, 30, 40, 50, 60.

[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] Preferably, the focal length of the first prism P1 is fp1, the sum of the on-axis distance from the object side surface of the first prism P1 to the reflective surface and the on-axis distance from the reflective surface to the image side surface of the first prism P1 is dp1, and the total optical length of the camera 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] Conditional equation (5) specifies the ratio range of the focal length fp1 of the first prism P1 to the focal length fA of the camera optical lens 10, 20, 30, 40, 50, 60 in the first state. Within the range defined by conditional equation (5), it helps to improve the optical performance of the camera optical lens 10, 20, 30, 40, 50, 60.

[0067] Conditional equation (6) specifies the range of the ratio of the sum of the on-axis distances dp1 of the first prism P1 to the total optical length TTL of the imaging optical lens 10, 20, 30, 40, 50, 60. Within the range defined by conditional equation (6), it is advantageous to control the total optical length TTL of the imaging optical lens 10, 20, 30, 40, 50, 60 and achieve a miniaturized design of the imaging optical lens 10, 20, 30, 40, 50, 60. More preferably, 0.372≤dp1 / TTL≤0.374.

[0068] The object side surface of the first prism P1 is convex at the near axis, and the image side surface of the first prism P1 is convex at the near axis. The object side surface and the image side surface of the first prism P1 can also be set to other concave or convex distributions.

[0069] Preferably, the focal length of the first lens L1 is f1, the curvature radius of the object-side surface of the first lens L1 is R1, the curvature radius of the image-side surface of the first lens L1 is R2, and the following relationship is satisfied:

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

[0074] Conditional expression (8) specifies the concavo-convex shapes of the object-side surface and the image-side surface of the first lens L1. Within the range defined by conditional expression (8), as the imaging optical lenses 10, 20, 30, 40, 50, and 60 develop toward miniaturization, it is beneficial to correct the problem of axial chromatic aberration.

[0075] Conditional formula (9) specifies the ratio range of the on-axis thickness d1 of the first lens L1 to the total optical length TTL of the imaging optical lens 10, 20, 30, 40, 50, 60. Within the range defined by conditional formula (9), it is beneficial to control the total optical length TTL of the imaging optical lens 10, 20, 30, 40, 50, 60, thereby realizing a miniaturized design of the imaging optical lens 10, 20, 30, 40, 50, 60.

[0076] The object-side surface of the first lens L1 is convex at the paraxial position, and the image-side surface of the first lens L1 is concave at the paraxial position. The object-side surface and the image-side surface of the first lens L1 can also be set to other concave and convex distributions.

[0077] Preferably, the focal length of the second lens L2 is f2, the radius of curvature of the object-side surface of the second lens L2 is R3, the radius of curvature of the image-side surface 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] Conditional equation (10) specifies the ratio range of the focal length f2 of the second lens L2 to the focal length fA of the imaging optical lenses 10, 20, 30, 40, 50, 60 in the first state. Within the range defined by conditional equation (10), it is beneficial to correct the aberrations of the optical system and improve the imaging quality of the imaging optical lenses 10, 20, 30, 40, 50, 60.

[0082] Conditional equation (11) specifies the concavo-convex shapes of the object-side surface and the image-side surface of the second lens L2. Within the range defined by conditional equation (11), as the imaging optical lenses 10, 20, 30, 40, 50, and 60 develop toward miniaturization, it is beneficial to correct the problem of axial chromatic aberration.

[0083] Conditional formula (12) specifies the ratio range of the on-axis thickness d3 of the second lens L2 to the total optical length TTL of the imaging optical lens 10, 20, 30, 40, 50, 60. Within the range defined by conditional formula (12), it is beneficial to control the total optical length TTL of the imaging optical lens 10, 20, 30, 40, 50, 60, thereby achieving a miniaturized design of the imaging optical lens 10, 20, 30, 40, 50, 60.

[0084] The object-side surface of the second lens L2 is convex at the paraxial position, and the image-side surface of the second lens L2 is convex at the paraxial position. The object-side surface and the image-side surface of the second lens L2 can also be set to other concave and convex distributions.

[0085] Preferably, the focal length of the third lens L3 is f3, the axial thickness of the third lens L3 is d5, the radius of curvature of the object-side surface of the third lens L3 is R5, and the radius of curvature of the image-side surface 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] Conditional equation (13) specifies the ratio range of the focal length f3 of the third lens L3 to the focal length fA of the camera optical lenses 10, 20, 30, 40, 50, 60 in the first state. Within the range defined by conditional equation (13), the system has better imaging quality and lower sensitivity through reasonable distribution of optical power.

[0090] Conditional equation (14) specifies the concavoconvex shapes of the object-side and image-side surfaces of the third lens L3. Within the range defined by conditional equation (14), the degree of light deflection passing through the lens can be mitigated, effectively reducing aberrations.

[0091] Conditional formula (15) specifies the ratio range of the on-axis thickness d5 of the third lens L3 to the total optical length TTL of the imaging optical lens 10, 20, 30, 40, 50, 60. Within the range defined by conditional formula (15), it is beneficial to control the total optical length TTL of the imaging optical lens 10, 20, 30, 40, 50, 60, thereby achieving a miniaturized design of the imaging optical lens 10, 20, 30, 40, 50, 60.

[0092] The object-side surface of the third lens L3 is concave at the paraxial position, and the image-side surface of the third lens L3 is concave at the paraxial position. The object-side surface and image-side surface of the third lens L3 can also be set to other concave or convex distributions.

[0093] Preferably, the focal length of the fourth lens L4 is f4, the axial 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] Conditional equation (16) specifies the ratio range of the focal length f4 of the fourth lens L4 to the focal length fA of the camera optical lenses 10, 20, 30, 40, 50, 60 in the first state. Within the range defined by conditional equation (16), the system has better imaging quality and lower sensitivity through reasonable distribution of optical power.

[0097] Conditional formula (17) specifies the ratio range of the on-axis thickness d7 of the fourth lens element L4 to the total optical length TTL of the imaging optical lens 10, 20, 30, 40, 50, 60. Within the range defined by conditional formula (17), it is beneficial to control the total optical length TTL of the imaging optical lens 10, 20, 30, 40, 50, 60 and achieve a miniaturized design of the imaging optical lens 10, 20, 30, 40, 50, 60.

[0098] The object-side surface of the fourth lens L4 is convex at the paraxial position, and the image-side surface of the fourth lens L4 is concave at the paraxial position. The object-side surface and image-side surface of the fourth lens L4 can also be set to other concave and convex distributions.

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

[0100] 0.25≤d5 / d7≤1.15 (18)

[0101] Conditional formula (18) specifies a range of a ratio of the on-axis thickness d5 of the third lens element L3 to the on-axis thickness d7 of the fourth lens element L4. Within the range defined by conditional formula (18), the on-axis thicknesses of the third lens element L3 and the fourth lens element L4 can be reasonably distributed, which is beneficial to reducing the difficulty of assembling the imaging optical lenses 10, 20, 30, 40, 50, and 60 during actual production and improving the yield rate of the imaging optical lenses 10, 20, 30, 40, 50, and 60. More preferably, 0.29≤d5 / d7≤1.15.

[0102] Preferably, the focal length of the fifth lens L5 is f5, the radius of curvature of the object-side surface of the fifth lens L5 is R9, the radius of curvature of the image-side surface of the fifth lens L5 is R10, and the axial 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] Conditional equation (19) specifies the ratio range of the focal length f5 of the fifth lens L5 to the focal length fA of the imaging optical lenses 10, 20, 30, 40, 50, 60 in the first state. Within the range defined by conditional equation (19), the angle of the light rays of the imaging optical lenses 10, 20, 30, 40, 50, 60 is smooth, thereby reducing the tolerance sensitivity.

[0107] Conditional expression (20) specifies the concavo-convex shapes of the object-side surface and the image-side surface of the fifth lens L5. Within the range defined by conditional expression (20), as the imaging optical lenses 10, 20, 30, 40, 50, and 60 develop toward miniaturization, it is beneficial to correct problems such as aberrations at off-axis angles of view.

[0108] Conditional formula (21) specifies the range of the ratio of the on-axis thickness d9 of the fifth lens element L5 to the total optical length TTL of the imaging optical lens 10, 20, 30, 40, 50, 60. Within the range defined by conditional formula (21), it is advantageous to control the total optical length TTL of the imaging optical lens 10, 20, 30, 40, 50, 60, thereby achieving a miniaturized design of the imaging optical lens 10, 20, 30, 40, 50, 60. More preferably, 0.026≤d9 / TTL≤0.032.

[0109] The object-side surface of the fifth lens L5 is convex at the paraxial position, and the image-side surface of the fifth lens L5 is concave at the paraxial position. The object-side surface and image-side surface of the fifth lens L5 can also be set to other concave and convex distributions.

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

[0111] In the present 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 may be a glass cover or an optical filter. In other optional solutions, the optical filter GF may also be disposed in other locations.

[0112] In the present invention, an aperture ST may be further 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 as shown in Table [1]. The units of focal length, on-axis spacing, curvature radius, and on-axis thickness are millimeters.

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

[0115] First embodiment:

[0116] The first prism P1 has positive refractive power, and its object side surface is convex at the near axis, and its image side surface is convex at the near axis;

[0117] The first lens L1 has negative refractive power, its object-side surface is convex at the paraxial direction, and its image-side surface is concave at the paraxial direction;

[0118] The second lens L2 has positive refractive power, and its object-side surface is convex at the paraxial direction, and its image-side surface is convex at the paraxial direction.

[0119] The third lens L3 has negative refractive power, and its object-side surface is concave at the paraxial direction, and its image-side surface is concave at the paraxial direction;

[0120] The fourth lens L4 has positive refractive power, its object-side surface is convex at the paraxial direction, and its image-side surface is concave at the paraxial direction.

[0121] The fifth lens L5 has negative refractive power, its object-side surface is convex at the paraxial position, and its image-side surface is concave at the paraxial position.

[0122] Figure 1a and Figure 1b 1 is a schematic diagram of the structure of the imaging optical lens 10 in the first embodiment. The following shows the design data of the imaging optical lens 10 in the first embodiment of the present invention.

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

[0124]

Table 1

[0125]

[0126] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 4.9, "dp1-02" = 4.6.

[0127] Table 2 lists the data of relevant optical parameters of the camera optical lens 10 in the first state and the second state respectively according to the first embodiment of the present invention.

[0128]

Table 2

[0129]

[0130]

[0131] The meanings of the symbols in the above table are as follows.

[0132] R: The curvature radius of the optical surface, or the central curvature radius of the lens;

[0133] ST: aperture;

[0134] Rp1: radius of curvature of the object-side surface of the first prism P1;

[0135] Rp2: radius of curvature of the image-side surface of the first prism P1;

[0136] R1: the radius of curvature of the object-side surface of the first lens L1;

[0137] R2: the radius of curvature of the image-side surface of the first lens L1;

[0138] R3: radius of curvature of the object-side surface of the second lens L2;

[0139] R4: the radius of curvature of the image-side surface of the second lens L2;

[0140] R5: radius of curvature of the object-side surface of the third lens L3;

[0141] R6: radius of curvature of the image-side surface of the third lens L3;

[0142] R7: radius of curvature of the object-side surface of the fourth lens L4;

[0143] R8: radius of curvature of the image-side surface of the fourth lens L4;

[0144] R9: radius of curvature of the object-side surface of the fifth lens element L5;

[0145] R10: radius of curvature of the image-side surface of the fifth lens L5;

[0146] R11: radius of curvature of the object side of the optical filter GF;

[0147] R12: radius of curvature of the image side of the optical filter GF;

[0148] d: the on-axis thickness of the lens and the on-axis distance between lenses;

[0149] d0: the on-axis distance from the aperture ST to the object-side surface of the first prism P1;

[0150] dp1: the sum of the on-axis distance from the object-side surface of the first prism P1 to the reflecting surface and the on-axis distance from the reflecting surface to the image-side surface of the first prism P1;

[0151] dp1-01: the on-axis distance from the object side of the first prism P1 to the reflecting surface;

[0152] dp1-02: the on-axis distance from the reflecting surface of the first prism P1 to the image side surface;

[0153] 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;

[0154] d1: axial thickness of the first lens L1;

[0155] 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;

[0156] d3: axial thickness of the second lens L2;

[0157] d4: the on-axis distance from the image-side surface of the second lens L2 to the object-side surface of the third lens L3;

[0158] d5: axial thickness of the third lens L3;

[0159] 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;

[0160] d7: axial thickness of the fourth lens L4;

[0161] 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;

[0162] d9: axial thickness of the fifth lens L5;

[0163] d10: the on-axis distance between the image-side surface of the fifth lens L5 and the object-side surface of the optical filter GF;

[0164] d11: axial thickness of the optical filter GF;

[0165] d12: the axial distance from the image side of the optical filter GF to the imaging surface Si;

[0166] nd: refractive index of d-line;

[0167] nd1: refractive index of the d-line of the first prism P1;

[0168] nd2: the refractive index of the first lens L1 at the d-line;

[0169] nd3: the refractive index of the second lens L2 at the d-line;

[0170] nd4: refractive index of the third lens L3 at the d-line;

[0171] nd5: the refractive index of the fourth lens L4 at the d-line;

[0172] nd6: the refractive index of the fifth lens L5 at the d-line;

[0173] ndg: refractive index of the d-line of the optical filter GF;

[0174] vd: Abbe number;

[0175] vd1: Abbe number of the first prism P1;

[0176] vd2: Abbe number of the first lens L1;

[0177] vd3: Abbe number of the second lens L2;

[0178] vd4: Abbe number of the third lens L3;

[0179] vd5: Abbe number of the fourth lens L4;

[0180] vd6: Abbe number of the fifth lens L5;

[0181] vdg: Abbe number of the optical filter GF.

[0182] Table 3 lists the conic coefficient k and aspheric coefficient of the imaging optical lens 10 according to the first embodiment of the present invention.

[0183]

Table 3

[0184]

[0185]

[0186] It should be noted that the aspheric surface of each lens in this embodiment uses the aspheric surface shown in the following conditional equation (22), but the specific form of the following conditional equation (22) is only an example. In fact, the present invention is not limited to the aspheric polynomial form indicated in the conditional equation (22).

[0187] 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 +

[0188] A20c 20 +A22c 22 +A24c 24 +A26c 26 +A28c 28 (twenty two)

[0189] Where k is the conic coefficient, A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26, and A28 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 the point r from the optical axis and the tangent plane tangent to the vertex on the aspheric surface).

[0190] In addition, the following Table 19 also lists various parameters in the first embodiment and the values ​​corresponding to the prescribed parameters in the conditional expressions.

[0191] Figure 2a and Figure 2b Schematic diagram showing the field curvature and distortion of light with a wavelength of 555 nanometers after passing through the camera optical lens 10 of the first embodiment; Figure 3a and Figure 3b Schematic diagram showing axial aberrations of 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; Figure 4a and Figure 4b A schematic diagram of magnification chromatic aberration of wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the imaging optical lens 10 of the first embodiment is shown.

[0192] As shown in Table 19, the first embodiment satisfies each conditional expression.

[0193] 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 large aperture, telephoto, and miniaturization. Its on-axis and off-axis chromatic aberrations are fully corrected and it has excellent optical performance.

[0194] Second embodiment

[0195] The first prism P1 has positive refractive power, and its object side surface is convex at the near axis, and its image side surface is convex at the near axis;

[0196] The first lens L1 has negative refractive power, its object-side surface is convex at the paraxial direction, and its image-side surface is concave at the paraxial direction;

[0197] The second lens L2 has positive refractive power, and its object-side surface is convex at the paraxial direction, and its image-side surface is convex at the paraxial direction.

[0198] The third lens L3 has negative refractive power, and its object-side surface is concave at the paraxial direction, and its image-side surface is concave at the paraxial direction;

[0199] The fourth lens L4 has positive refractive power, its object-side surface is convex at the paraxial direction, and its image-side surface is concave at the paraxial direction.

[0200] The fifth lens L5 has negative refractive power, its object-side surface is convex at the paraxial position, and its image-side surface is concave at the paraxial position.

[0201] Figure 5a and Figure 5b 2 is a schematic structural diagram of the camera optical lens 20 in the second embodiment. The second embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those in the first embodiment. Only the differences are listed below.

[0202] Tables 4 to 6 show design data of the imaging optical lens 20 according to the second embodiment of the present invention.

[0203]

Table 4

[0204]

[0205]

[0206] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 4.9, "dp1-02" = 4.6.

[0207] Table 5 lists the data of relevant optical parameters of the imaging optical lens 20 in the second embodiment of the present invention in the first state and the second state respectively.

[0208]

Table 5

[0209] In the first state In the second state f 16.025 14.399 FOV 24.77° 24.30° FNO 2.26 2.55 dp2 0.656 0.145 d4 0.061 0.572

[0210] Table 6 lists the conic coefficient k and aspheric coefficient of the imaging optical lens 20 according to the second embodiment of the present invention.

[0211]

Table 6

[0212]

[0213]

[0214] In addition, the following Table 19 also lists various parameters in the second embodiment and the values ​​corresponding to the prescribed parameters in the conditional expressions.

[0215] Figure 6a and Figure 6b Schematic diagram showing the field curvature and distortion of light with a wavelength of 555 nanometers after passing through the camera optical lens 20 of the second embodiment; Figure 7a and Figure 7bSchematic diagram of axial aberrations of 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; Figure 8a and Figure 8b A schematic diagram of magnification chromatic aberration of wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the imaging optical lens 20 of the second embodiment is shown.

[0216] As shown in Table 19, the second embodiment satisfies each conditional expression.

[0217] 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 large aperture, telephoto, and miniaturization. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical performance.

[0218] Third embodiment

[0219] The first prism P1 has positive refractive power, and its object side surface is convex at the near axis, and its image side surface is convex at the near axis;

[0220] The first lens L1 has negative refractive power, its object-side surface is convex at the paraxial direction, and its image-side surface is concave at the paraxial direction;

[0221] The second lens L2 has positive refractive power, and its object-side surface is convex at the paraxial direction, and its image-side surface is convex at the paraxial direction.

[0222] The third lens L3 has negative refractive power, and its object-side surface is concave at the paraxial direction, and its image-side surface is concave at the paraxial direction;

[0223] The fourth lens L4 has positive refractive power, its object-side surface is convex at the paraxial direction, and its image-side surface is concave at the paraxial direction.

[0224] The fifth lens L5 has negative refractive power, its object-side surface is convex at the paraxial position, and its image-side surface is concave at the paraxial position.

[0225] Figure 9a and Figure 9b 3 is a schematic structural diagram of the camera optical lens 30 in the third embodiment. The third embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those in the first embodiment. Only the differences are listed below.

[0226] Tables 7 to 9 show design data of the imaging optical lens 30 according to the third embodiment of the present invention.

[0227]

Table 7

[0228]

[0229] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 4.9, "dp1-02" = 4.6.

[0230] Table 8 lists the data of relevant optical parameters of the camera optical lens 30 in the third embodiment of the present invention in the first state and the second state respectively.

[0231]

Table 8

[0232] In the first state In the second state f 16.000 14.400 FOV 24.64° 24.25 FNO 2.28 2.56 dp2 0.851 0.335 d4 0.032 0.547

[0233] Table 9 lists the conic coefficient k and aspheric coefficient of the imaging optical lens 30 according to the third embodiment of the present invention.

[0234]

Table 9

[0235]

[0236]

[0237] In addition, the following Table 19 also lists various parameters in the third embodiment and the values ​​corresponding to the prescribed parameters in the conditional expressions.

[0238] Figure 10a and Figure 10b Schematic diagram showing the field curvature and distortion of light with a wavelength of 555 nanometers after passing through the camera optical lens 30 of the third embodiment; Figure 11a and Figure 11b Schematic diagram showing axial aberrations of 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; Figure 12a and Figure 12b A schematic diagram of magnification chromatic aberration of wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the imaging optical lens 30 of the third embodiment is shown.

[0239] As shown in Table 19, the third embodiment satisfies each conditional expression.

[0240] 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 large aperture, telephoto, and miniaturization. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical performance.

[0241] Fourth embodiment

[0242] The first prism P1 has positive refractive power, and its object side surface is convex at the near axis, and its image side surface is convex at the near axis;

[0243] The first lens L1 has negative refractive power, its object-side surface is convex at the paraxial direction, and its image-side surface is concave at the paraxial direction;

[0244] The second lens L2 has positive refractive power, and its object-side surface is convex at the paraxial direction, and its image-side surface is convex at the paraxial direction.

[0245] The third lens L3 has negative refractive power, and its object-side surface is concave at the paraxial direction, and its image-side surface is concave at the paraxial direction;

[0246] The fourth lens L4 has positive refractive power, its object-side surface is convex at the paraxial direction, and its image-side surface is concave at the paraxial direction.

[0247] The fifth lens L5 has negative refractive power, its object-side surface is convex at the paraxial position, and its image-side surface is concave at the paraxial position.

[0248] Figure 13a and Figure 13b 3 is a schematic structural diagram of the camera optical lens 40 in the fourth embodiment. The fourth embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those in the first embodiment. Only the differences are listed below.

[0249] Tables 10 to 12 show design data of the imaging optical lens 40 according to the fourth embodiment of the present invention.

[0250]

Table 10

[0251]

[0252] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 4.9, "dp1-02" = 4.6.

[0253] Table 11 lists the data of relevant optical parameters of the imaging optical lens 40 in the fourth embodiment of the present invention in the first state and the second state respectively.

[0254]

Table 11

[0255] In the first state In the second state f 15.941 14.4 FOV 24.85° 24.45° FNO 2.27 2.53 dp2 0.68 0.163 d4 0.094 0.611

[0256] Table 12 lists the conic coefficient k and aspheric coefficient of the imaging optical lens 40 according to the fourth embodiment of the present invention.

[0257]

Table 12

[0258]

[0259]

[0260]

[0261] In addition, the following Table 19 also lists various parameters in the fourth embodiment and the values ​​corresponding to the prescribed parameters in the conditional expressions.

[0262] Figure 14a and Figure 14b Schematic diagram showing the field curvature and distortion of light with a wavelength of 555 nanometers after passing through the camera optical lens 40 of the fourth embodiment; Figure 15a and Figure 15b Schematic diagram showing axial aberrations of 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; Figure 16a and Figure 16b A schematic diagram of magnification chromatic aberration of wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the imaging optical lens 40 of the fourth embodiment is shown.

[0263] As shown in Table 19, the fourth embodiment satisfies each conditional expression.

[0264] 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 large aperture, telephoto, and miniaturization. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical performance.

[0265] Fifth embodiment

[0266] The first prism P1 has positive refractive power, and its object side surface is convex at the near axis, and its image side surface is convex at the near axis;

[0267] The first lens L1 has negative refractive power, its object-side surface is convex at the paraxial direction, and its image-side surface is concave at the paraxial direction;

[0268] The second lens L2 has positive refractive power, and its object-side surface is convex at the paraxial direction, and its image-side surface is convex at the paraxial direction.

[0269] The third lens L3 has negative refractive power, and its object-side surface is concave at the paraxial direction, and its image-side surface is concave at the paraxial direction;

[0270] The fourth lens L4 has positive refractive power, its object-side surface is convex at the paraxial direction, and its image-side surface is concave at the paraxial direction.

[0271] The fifth lens L5 has negative refractive power, its object-side surface is convex at the paraxial position, and its image-side surface is concave at the paraxial position.

[0272] Figure 17a and Figure 17b 3 is a schematic structural diagram of the camera optical lens 50 in the fifth embodiment. The fifth embodiment is basically the same as the first embodiment, and the meanings of the symbols are the same as those in the first embodiment. Only the differences are listed below.

[0273] Tables 13 to 15 show design data of the imaging optical lens 50 according to the fifth embodiment of the present invention.

[0274]

Table 13

[0275]

[0276]

[0277] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 4.9, "dp1-02" = 4.6.

[0278] Table 14 lists the data of relevant optical parameters of the imaging optical lens 50 in the fifth embodiment of the present invention in the first state and the second state respectively.

[0279]

Table 14

[0280] In the first state In the second state f 15.876 14.4 FOV 24.95° 24.56° FNO 2.25 2.49 dp2 0.606 0.1 d4 0.094 0.6

[0281] Table 15 lists the conic coefficient k and aspheric coefficient of the imaging optical lens 50 according to the fifth embodiment of the present invention.

[0282]

Table 15

[0283]

[0284]

[0285] In addition, the following Table 19 also lists various parameters in the fifth embodiment and the values ​​corresponding to the prescribed parameters in the conditional expressions.

[0286] Figure 18a and Figure 18b Schematic diagram showing the field curvature and distortion of light with a wavelength of 555 nanometers after passing through the camera optical lens 50 of the fifth embodiment; Figure 19a and Figure 19b Schematic diagram showing axial aberrations of 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; Figure 20a and Figure 20bA schematic diagram of magnification chromatic aberration of wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the imaging optical lens 50 of the fifth embodiment is shown.

[0287] As shown in Table 19, the fifth embodiment satisfies each conditional expression.

[0288] 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 large aperture, telephoto, and miniaturization. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical performance.

[0289] Sixth embodiment

[0290] The first prism P1 has positive refractive power, and its object side surface is convex at the near axis, and its image side surface is convex at the near axis;

[0291] The first lens L1 has negative refractive power, its object-side surface is convex at the paraxial direction, and its image-side surface is concave at the paraxial direction;

[0292] The second lens L2 has positive refractive power, and its object-side surface is convex at the paraxial direction, and its image-side surface is convex at the paraxial direction.

[0293] The third lens L3 has negative refractive power, and its object-side surface is concave at the paraxial direction, and its image-side surface is concave at the paraxial direction;

[0294] The fourth lens L4 has positive refractive power, its object-side surface is convex at the paraxial direction, and its image-side surface is concave at the paraxial direction.

[0295] The fifth lens L5 has negative refractive power, its object-side surface is convex at the paraxial position, and its image-side surface is concave at the paraxial position.

[0296] Figure 21a and Figure 21b 3 is a schematic structural diagram of the camera optical lens 60 in the sixth embodiment. The sixth embodiment is substantially the same as the first embodiment, and the meanings of the symbols are the same as those in the first embodiment. Only the differences are listed below.

[0297] Tables 16 to 18 show design data of the imaging optical lens 60 according to the sixth embodiment of the present invention.

[0298] Table 16

[0299]

[0300] Among them, dp1 = "dp1-01" + "dp1-02", "dp1-01" = 4.9, "dp1-02" = 4.6.

[0301] Table 17 lists the data of relevant optical parameters of the imaging optical lens 60 in the first state and the second state according to the sixth embodiment of the present invention.

[0302] Table 17

[0303]

[0304] Table 18 lists the conic coefficient k and aspheric coefficient of the imaging optical lens 60 according to the sixth embodiment of the present invention.

[0305] Table 18

[0306]

[0307]

[0308] In addition, the following Table 19 also lists the values ​​corresponding to the various parameters and the conditional expressions in the sixth embodiment according to the prescribed parameters.

[0309] Figure 22a and Figure 22b Schematic diagram showing the field curvature and distortion of light with a wavelength of 555 nanometers after passing through the camera optical lens 60 of the sixth embodiment; Figure 23a and Figure 23b Schematic diagram showing axial aberrations of 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; Figure 24a and Figure 24b A schematic diagram of magnification chromatic aberration of wavelengths of 430 nm, 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm after passing through the imaging optical lens 60 of the sixth embodiment is shown.

[0310] As shown in Table 19, the sixth embodiment satisfies each conditional expression.

[0311] 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 large aperture, telephoto, and miniaturization. Its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical performance.

[0312] Table 19

[0313]

[0314]

[0315] The above is a detailed introduction to the camera optical lens provided by the embodiment of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above implementation methods is only used to help understand the ideas of the present invention. There may be changes in the specific implementation methods and application scope. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A camera optical lens, characterized in that: The camera optical lens is composed of a first prism with positive refractive power, a first lens with negative refractive power, a second lens with positive refractive power, a third lens with negative refractive power, a fourth lens with positive refractive power, and a fifth lens with negative refractive power, which are arranged in sequence from the object side to the image side; a reflecting surface is provided between the object side surface and the image side surface 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 movable and adjustable along the optical axis of the camera optical lens, so that the camera optical lens switches between a first state and a second state, wherein the focal length of the camera optical lens is maximum in the first state, and the focal length of the camera optical lens is minimum 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.

2. The imaging 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.

3. The imaging optical lens according to claim 1, wherein: The object side surface of the first prism is convex at the near axis, and the image side surface of the first prism is convex at the near axis; The focal length of the first prism is fp1, and satisfies the following relationship: 0.92≤fp1 / fA≤1.

23.

4. The imaging optical lens according to claim 1, wherein: The object side surface of the first lens is convex at the paraxial position, and the image side surface of the first lens is concave at the paraxial position; The focal length of the first lens is f1, the curvature radius of the object side surface of the first lens is R1, the curvature radius of the image side surface of the first lens is R2, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: -1.012≤f1 / fA≤-0.943; 3.33≤(R1+R2) / (R1-R2)≤4.00; 0.034≤d1 / TTL≤0.

061.

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

115.

6. The imaging 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 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 axial thickness of the third lens is d5, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: -0.475≤f3 / fA≤-0.450; -0.58≤(R5+R6) / (R5-R6)≤-0.44; 0.019≤d5 / TTL≤0.

095.

7. The imaging optical lens according to claim 1, wherein: The object side surface of the fourth lens is convex at the paraxial position, and the image side surface of the fourth lens is concave at the paraxial position; The focal length of the fourth lens is f4, the axial thickness of the fourth lens is d7, the total optical length of the camera optical lens is TTL, and the following relationship is satisfied: 0.98≤f4 / fA≤1.15; 0.041≤d7 / TTL≤0.

103.

8. The imaging optical lens according to claim 1, wherein: The on-axis thickness of the third lens is d5, the on-axis thickness of the fourth lens is d7, and the following relationship is satisfied: 0.25≤d5 / d7≤1.

15.

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

15.

10. The imaging 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 focal length of the fifth lens is f5, the curvature radius of the object side surface of the fifth lens is R9, the curvature radius of the image side surface of the fifth lens is R10, and the following relationship is satisfied: -1.93≤f5 / fA≤-1.29; 4.31≤(R9+R10) / (R9-R10)≤6.

33.

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

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