Optical camera lens

Abstract

The application provides an optical camera lens, comprising: a lens barrel, an outer wall surface of the lens barrel comprising a tilt surface, a transition surface and an extension surface connected in sequence, a minimum diameter of the tilt surface being smaller than a minimum diameter of the transition surface; five lenses, and from an object side to an image side, the five lenses are a first lens to a fifth lens; a plurality of isolation pieces; the optical camera lens satisfies (EPD+d0s) / f>1.1, wherein EPD is an entrance pupil diameter of the optical camera lens, d0s is an inner diameter of an object side end surface of the lens barrel, and f is an effective focal length of the optical camera lens; the object side end surface of the lens barrel satisfies 0<d0s / f1-d0m / f5<5.0, wherein d0s is the inner diameter of the object side end surface of the lens barrel, f1 is an effective focal length of the first lens, d0m is an inner diameter of an image side end surface of the lens barrel, and f5 is an effective focal length of the fifth lens; the first lens satisfies (TD+L) / [f*tan(FOV / 2)]>2.3, wherein TD is an on-axis distance from an object side surface of the first lens to an image side surface of the fifth lens, L is a length of the lens barrel, f is the effective focal length of the optical camera lens, and FOV is a maximum field of view of the optical camera lens. The application solves the problem that the optical camera lens cannot be miniaturized and the imaging quality cannot be considered in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical imaging devices, in particular to an optical camera lens. BACKGROUND

[0002] With the increasing demand of users for the appearance of mobile phones, mobile phones are developing towards thinness, which requires the optical camera lens mounted on the mobile phone to be miniaturized to adapt to the increasingly thin mobile phones. At the same time, users have higher and higher requirements for the imaging quality of the optical camera lens, and the number of lenses needs to be increased to better control the aberration and improve the imaging quality, but this will make it difficult for the optical camera lens to be miniaturized, and it cannot match the thin mobile phone. Generally, the optical camera lens with a small head part is provided with a step surface on the outer wall of the lens barrel to ensure that the lens has a small head part, and at the same time ensure that the rear optical system has a large size. However, such a setting will cause a large difference in the thickness of different positions of the lens barrel, and the lens barrel is prone to uneven stress, and the risk of deformation is high when the lens barrel is demolded and assembled on the mobile phone. In addition, the large size of the lens barrel also increases the volume of the optical camera lens, making it difficult to miniaturize, and the lens barrel with a small head part will affect the amount of light, and thus affect the imaging quality.

[0003] That is, the optical camera lens in the prior art has the problem that miniaturization and imaging quality cannot be considered. SUMMARY

[0004] The main purpose of the present application is to provide an optical camera lens to solve the problem that the optical camera lens in the prior art cannot consider miniaturization and imaging quality.

[0005] In order to achieve the above object, according to one aspect of the present application, an optical camera lens is provided, comprising: a lens barrel, an outer wall surface of the lens barrel comprising a tilt surface, a transition surface and an extension surface connected in sequence, an object side end surface of the lens barrel being connected with the tilt surface, an image side end surface of the lens barrel being connected with the extension surface, the tilt surface and the transition surface being arranged obliquely relative to an optical axis of the optical camera lens, a minimum diameter of the tilt surface being smaller than a minimum diameter of the transition surface; five lenses arranged in the lens barrel in sequence, and from the object side to the image side being a first lens to a fifth lens; a plurality of spacers, a spacer located on an image side of the i-th lens and in contact with an image side surface of the i-th lens being an i-th spacer, i being selected from 1, 2, 3, 4; wherein an entrance pupil diameter EPD of the optical camera lens, an inner diameter d0s of the object side end surface of the lens barrel, and an effective focal length f of the optical camera lens satisfy: (EPD+d0s) / f>1.1; the inner diameter d0s of the object side end surface of the lens barrel, an effective focal length f1 of the first lens, an inner diameter d0m of the image side end surface of the lens barrel, and an effective focal length f5 of the fifth lens satisfy: 0<d0s / f1-d0m / f5<5.0; an on-axis distance TD from an object side surface of the first lens to an image side surface of the fifth lens, a length L of the lens barrel, the effective focal length f of the optical camera lens, and a maximum field of view FOV of the optical camera lens satisfy: (TD+L) / [f*tan(FOV / 2)]>2.3.

[0006] Further, when the refractive index of the i-th lens is greater than 1.6, it satisfies: -40.0<fi / EPji<40.0, wherein j=i-1, fi is an effective focal length of the i-th lens, EPji is a distance between the j-th spacer and the i-th spacer, i is selected from 2, 3, 4, and j is selected from 1, 2, 3.

[0007] Further, when the absolute value of the radius of curvature of the object side surface or the image side surface of the i-th lens is less than 5mm, it satisfies: -50.0<fi / (Dim-dim)<50.0, wherein fi is an effective focal length of the i-th lens, Dim is an outer diameter of the image side surface of the i-th spacer, dim is an inner diameter of the image side surface of the i-th spacer, and i is selected from 1, 2, 3, 4.

[0008] Further, the radius of curvature R4 of the image side surface of the second lens, the radius of curvature R5 of the object side surface of the third lens, the inner diameter d2m of the image side surface of the second spacer, and the outer diameter D2m of the image side surface of the second spacer satisfy: -50.0<(R4+R5) / d2m+(R4+R5) / D2m<100.0.

[0009] Further, the maximum thickness of at least one spacer is greater than 0.08mm.

[0010] Further, when the maximum thickness of the i-th spacer is greater than 0.08mm, the following is satisfied: -20.0 < R2i / Dim < 5.0, where R2i is the radius of curvature of the image side surface of the i-th lens, Dim is the outer diameter of the image side surface of the i-th spacer, and i takes values from 1, 2, 3, 4.

[0011] Further, the outer diameter D4m of the image side surface of the fourth spacer, the inner diameter d4m of the image side surface of the fourth spacer, the radius of curvature R8 of the image side surface of the fourth lens, the radius of curvature R9 of the object side surface of the fifth lens, and the radius of curvature R10 of the image side surface of the fifth lens satisfy the following: |(D4m+d4m) / (R8+R9+R10)| < 50.0.

[0012] Further, the length L1 of the extension surface along the optical axis direction of the optical imaging lens, the center thickness CT4 of the fourth lens, the air separation T45 of the fourth lens and the fifth lens on the optical axis, and the center thickness CT5 of the fifth lens satisfy the following: 0.5 < L1 / (CT4+T45+CT5) < 1.5.

[0013] Further, the center thickness CT3 of the third lens, the air separation T34 of the third lens and the fourth lens on the optical axis of the optical imaging lens, the distance EP23 between the second spacer and the third spacer, and the maximum thickness CP3 of the third spacer satisfy the following: 0.5 < (CT3+T34) / (EP23+CP3) < 3.0.

[0014] Further, the effective focal length f4 of the fourth lens, the center thickness CT4 of the fourth lens, and the distance EP34 between the third spacer and the fourth spacer satisfy the following: 10.0 < f4 / CT4+f4 / EP34 < 80.0.

[0015] Further, the effective focal length f5 of the fifth lens, the radius of curvature R9 of the object side surface of the fifth lens, the distance EP34 between the third spacer and the fourth spacer, the maximum thickness CP4 of the fourth spacer, and the radius of curvature R10 of the image side surface of the fifth lens satisfy the following: -20.0 < (f5 / R9) / (EP34 / CP4)+(f5 / R10) / (EP34 / CP4) < 0.

[0016] Further, the optical imaging lens further comprises a fourth auxiliary spacer, the fourth auxiliary spacer is located on the image side of the fourth spacer and in contact with the image side surface of the fourth spacer, and the distance between the fourth auxiliary spacer and the object side end surface of the lens barrel is greater than the distance between the fourth auxiliary spacer and the image side end surface of the lens barrel.

[0017] Further, the optical camera lens further comprises a fourth auxiliary spacer, the fourth auxiliary spacer is located on the image side of the fourth spacer and in contact with the image side of the fourth spacer, the effective focal length f4 of the fourth lens, the effective focal length f5 of the fifth lens, the outer diameter D4bm of the image side of the fourth auxiliary spacer, the inner diameter d4bm of the image side of the fourth auxiliary spacer satisfy: 1.0 < (f4-f5) / (D4bm-d4bm) < 20.0.

[0018] Further, the inner diameter of the image side of the second spacer is the smallest among the inner diameters of the image sides of all the spacers, the radius of curvature R3 of the object side of the second lens, the radius of curvature R4 of the image side of the second lens satisfy: R3 > R4, the radius of curvature R4 of the image side of the second lens, the radius of curvature R5 of the object side of the third lens satisfy: |R4| < |R5|.

[0019] Further, the effective focal length f3 of the third lens, the effective focal length f4 of the fourth lens satisfy: |f3| > |f4|, the effective focal length f4 of the fourth lens, the effective focal length f5 of the fifth lens satisfy: f4 > f5.

[0020] According to another aspect of the present application, an optical camera lens is provided, comprising: a lens barrel, an outer wall surface of the lens barrel comprising a tilt surface, a transition surface and an extension surface connected in sequence, an object side end surface of the lens barrel being connected with the tilt surface, an image side end surface of the lens barrel being connected with the extension surface, the tilt surface and the transition surface being arranged obliquely relative to an optical axis of the optical camera lens, a minimum diameter of the tilt surface being smaller than a minimum diameter of the transition surface; five lenses, the five lenses being arranged in the lens barrel in sequence and being the first lens to the fifth lens from the object side to the image side; a plurality of spacers, a spacer located on the image side of the i-th lens and in contact with the image side of the i-th lens being the i-th spacer, i being selected from 1, 2, 3, 4; wherein the inner diameter d0s of the object side end surface of the lens barrel, the effective focal length f1 of the first lens, the inner diameter d0m of the image side end surface of the lens barrel, the effective focal length f5 of the fifth lens satisfy: 0 < d0s / f1-d0m / f5 < 5.0; the on-axis distance TD from the object side surface of the first lens to the image side surface of the fifth lens, the length L of the lens barrel, the effective focal length f of the optical camera lens, the maximum field of view FOV of the optical camera lens satisfy: (TD+L) / [f*tan(FOV / 2)] > 2.3; the center thickness CT3 of the third lens, the air gap T34 of the third lens and the fourth lens on the optical axis of the optical camera lens, the distance EP23 of the second spacer and the third spacer, the maximum thickness CP3 of the third spacer satisfy: 0.5 < (CT3+T34) / (EP23+CP3) < 3.0.

[0021] Further, when the refractive index of the i-th lens is greater than 1.6, the following is satisfied: -40.0 < fi / EPji < 40.0, where j = i-1, fi is the effective focal length of the i-th lens, EPji is the distance between the j-th spacer and the i-th spacer, i takes a value from among 2, 3, 4, and j takes a value from among 1, 2, 3.

[0022] Further, when the absolute value of the radius of curvature of the object side surface or the image side surface of the i-th lens is less than 5 mm, the following is satisfied: -50.0 < fi / (Dim-dim) < 50.0, where fi is the effective focal length of the i-th lens, Dim is the outer diameter of the image side surface of the i-th spacer, dim is the inner diameter of the image side surface of the i-th spacer, and i takes a value from among 1, 2, 3, 4.

[0023] Further, the following is satisfied among the radius of curvature R4 of the image side surface of the second lens, the radius of curvature R5 of the object side surface of the third lens, the inner diameter d2m of the image side surface of the second spacer, and the outer diameter D2m of the image side surface of the second spacer: -50.0 < (R4+R5) / d2m + (R4+R5) / D2m < 100.0.

[0024] Further, the maximum thickness of at least one spacer is greater than 0.08 mm.

[0025] Further, when the maximum thickness of the i-th spacer is greater than 0.08 mm, the following is satisfied: -20.0 < R2i / Dim < 5.0, where R2i is the radius of curvature of the image side surface of the i-th lens, Dim is the outer diameter of the image side surface of the i-th spacer, and i takes a value from among 1, 2, 3, 4.

[0026] Further, the following is satisfied among the outer diameter D4m of the image side surface of the fourth spacer, the inner diameter d4m of the image side surface of the fourth spacer, the radius of curvature R8 of the image side surface of the fourth lens, the radius of curvature R9 of the object side surface of the fifth lens, and the radius of curvature R10 of the image side surface of the fifth lens: |(D4m+d4m) / (R8+R9+R10)| < 50.0.

[0027] Further, the following is satisfied among the length L1 of the extension surface in the direction of the optical axis of the optical image capturing lens, the center thickness CT4 of the fourth lens, the air separation T45 of the fourth lens and the fifth lens in the optical axis, and the center thickness CT5 of the fifth lens: 0.5 < L1 / (CT4+T45+CT5) < 1.5.

[0028] Further, the following is satisfied among the effective focal length f4 of the fourth lens, the center thickness CT4 of the fourth lens, and the distance EP34 of the third spacer and the fourth spacer: 10.0 < f4 / CT4 + f4 / EP34 < 80.0.

[0029] Further, the effective focal length f5 of the fifth lens, the radius of curvature R9 of the object side surface of the fifth lens, the distance EP34 between the third spacer and the fourth spacer, the maximum thickness CP4 of the fourth spacer, the radius of curvature R10 of the image side surface of the fifth lens satisfy: -20.0 < (f5 / R9) / (EP34 / CP4) + (f5 / R10) / (EP34 / CP4) < 0.

[0030] Further, the optical camera lens further comprises a fourth auxiliary spacer, the fourth auxiliary spacer is located on the image side of the fourth spacer and in contact with the image side surface of the fourth spacer, the distance between the fourth auxiliary spacer and the object side end surface of the lens barrel is greater than the distance between the fourth auxiliary spacer and the image side end surface of the lens barrel.

[0031] Further, the optical camera lens further comprises a fourth auxiliary spacer, the fourth auxiliary spacer is located on the image side of the fourth spacer and in contact with the image side surface of the fourth spacer, the effective focal length f4 of the fourth lens, the effective focal length f5 of the fifth lens, the outer diameter D4bm of the image side surface of the fourth auxiliary spacer, the inner diameter d4bm of the image side surface of the fourth auxiliary spacer satisfy: 1.0 < (f4-f5) / (D4bm-d4bm) < 20.0.

[0032] Further, the inner diameter of the image side surface of the second spacer is the smallest among the inner diameters of the image side surfaces of all the spacers, the radius of curvature R3 of the object side surface of the second lens, the radius of curvature R4 of the image side surface of the second lens satisfy: R3 > R4, the radius of curvature R4 of the image side surface of the second lens, the radius of curvature R5 of the object side surface of the third lens satisfy: |R4| < |R5|.

[0033] Further, the effective focal length f3 of the third lens, the effective focal length f4 of the fourth lens satisfy: |f3| > |f4|, the effective focal length f4 of the fourth lens, the effective focal length f5 of the fifth lens satisfy: f4 > f5.

[0034] The optical camera lens comprises a lens barrel, five lenses and a plurality of isolation pieces, the outer wall surface of the lens barrel comprises a tilt surface, a transition surface and an extension surface connected in sequence, the object side end surface of the lens barrel is connected with the tilt surface, the image side end surface of the lens barrel is connected with the extension surface, the tilt surface and the transition surface are arranged obliquely relative to the optical axis of the optical camera lens, and the minimum diameter of the tilt surface is smaller than that of the transition surface; the five lenses are arranged in the lens barrel in sequence, and are the first lens to the fifth lens from the object side to the image side; the isolation piece located on the image side of the i-th lens and in contact with the image side surface of the i-th lens is the i-th isolation piece, i is selected from 1, 2, 3 and 4; wherein the entrance pupil diameter EPD of the optical camera lens, the inner diameter d0s of the object side end surface of the lens barrel and the effective focal length f of the optical camera lens satisfy (EPD+d0s) / f>1.1; the inner diameter d0s of the object side end surface of the lens barrel, the effective focal length f1 of the first lens, the inner diameter d0m of the image side end surface of the lens barrel and the effective focal length f5 of the fifth lens satisfy 0<d0s / f1-d0m / f5<5.0; the on-axis distance TD from the object side surface of the first lens to the image side surface of the fifth lens, the length L of the lens barrel, the effective focal length f of the optical camera lens and the maximum field of view FOV of the optical camera lens satisfy (TD+L) / [f*tan(FOV / 2)]>2.3.

[0035] By reasonably designing the length of the lens barrel, the outer diameter and the inner diameter of the lens barrel, the focal length of the lens, the length occupied by all the lenses, the effective focal lengths of the first lens and the fifth lens, the entrance pupil diameter and the inner diameter of the isolation piece, the light amount of the large-aperture camera lens can be effectively controlled, and the light can be more efficiently utilized to participate in imaging. Meanwhile, the control of the inner diameter size of the image side end surface of the lens barrel can better change the reflection route of the redundant light, reduce the generation of stray light, and the matching between the lenses can balance the spherical aberration and improve the clarity of imaging. Reasonable adjustment of the size of the lens barrel can also make the wall thickness of the lens barrel more uniform, the structure more compact and the size smaller, thereby optimizing the overall structure of the lens to form a five-piece optical camera lens with a small head part and clear imaging on the basis of meeting the market demand for ultra-thin and small-sized lenses. BRIEF DESCRIPTION OF DRAWINGS

[0036] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application, explain the application, and do not limit the application. In the drawings:

[0037] Figure 1 A structure schematic diagram of an optical camera lens of one optional embodiment of the application is shown;

[0038] Figures 2 to 4Structure schematic diagrams of the optical camera lens of the example one of the present application in the first state, the second state and the third state are shown;

[0039] Figures 5 to 8 Axial chromatic aberration curves, astigmatic curves, distortion curves, and lateral chromatic aberration curves of the example one of the present application are shown respectively;

[0040] Figures 9 to 11 Structure schematic diagrams of the optical camera lens of the example two of the present application in the first state, the second state and the third state are shown;

[0041] Figures 12 to 15 Axial chromatic aberration curves, astigmatic curves, distortion curves, and lateral chromatic aberration curves of the example two of the present application are shown respectively;

[0042] Figures 16 to 18 Structure schematic diagrams of the optical camera lens of the example three of the present application in the first state, the second state and the third state are shown;

[0043] Figures 19 to 22 Axial chromatic aberration curves, astigmatic curves, distortion curves, and lateral chromatic aberration curves of the example three of the present application are shown respectively.

[0044] Among the above drawings, the following reference signs are included:

[0045] 10, lens barrel; 111, inclined surface; 112, transition surface; 113, extension surface; E1, first lens; S1, object side surface of the first lens; S2, image side surface of the first lens; P1, first spacer; E2, second lens; S3, object side surface of the second lens;

[0046] S4, image side surface of the second lens; P2, second spacer; E3, third lens; S5, object side surface of the third lens; S6, image side surface of the third lens; P3, third spacer; P3b, third auxiliary spacer; E4, fourth lens; S7, object side surface of the fourth lens; S8, image side surface of the fourth lens; P4, fourth spacer; P4b, fourth auxiliary spacer; E5, fifth lens; S9, object side surface of the fifth lens; S10, image side surface of the fifth lens. DETAILED DESCRIPTION

[0047] It should be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0048] It should be noted that, unless otherwise specified, all the technical and scientific terms used in the present application have the same meaning as that generally understood by the ordinary skilled person in the technical field to which the present application belongs.

[0049] In the present application, the orientation words such as "upper", "lower", "top", "bottom" are generally directed to the directions shown in the drawings, or are directed to the vertical, perpendicular or gravity directions of the components themselves, unless otherwise specified. Similarly, for the convenience of understanding and description, "inner" and "outer" refer to the inner and outer relative to the contour of the components themselves, but the above orientation words are not used to limit the present application.

[0050] It should be noted that the terms first, second, third, etc. in the present description are only used to distinguish one feature from another feature, and do not represent any limitation on the features. Therefore, the first lens discussed below can also be referred to as the second lens or the third lens without departing from the teachings of the present application.

[0051] In the drawings, the thickness, size and shape of the lens have been slightly exaggerated for the convenience of illustration. Specifically, the shape of the spherical or aspherical surface shown in the drawings is shown by way of example. That is, the shape of the spherical or aspherical surface is not limited to the shape of the spherical or aspherical surface shown in the drawings. The drawings are merely examples and are not strictly drawn to scale.

[0052] In this context, the paraxial region refers to the region near the optical axis. If the lens surface is convex and the position of the convex surface is not specified, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the position of the concave surface is not specified, it means that the lens surface is concave at least in the paraxial region. The judgment of the surface shape in the paraxial region can be based on the judgment method of those skilled in the art, with the R value (R refers to the radius of curvature in the paraxial region, usually refers to the R value on the lens data in the optical software) positive and negative judgment of convex and concave. In terms of the object side surface, when the R value is positive, it is determined to be convex, and when the R value is negative, it is determined to be concave; in terms of the image side surface, when the R value is positive, it is determined to be concave, and when the R value is negative, it is determined to be convex.

[0053] In order to solve the problem that the optical camera lens in the prior art cannot be miniaturized and the imaging quality cannot be considered, the present application provides an optical camera lens.

[0054] Embodiment one

[0055] As Figures 1 to 22As shown, the optical camera lens includes a lens barrel 10, five lenses and a plurality of isolation pieces, the outer wall surface of the lens barrel 10 includes a tilt surface 111, a transition surface 112 and an extension surface 113 connected in sequence, the object side end surface of the lens barrel is connected with the tilt surface 111, the image side end surface of the lens barrel is connected with the extension surface 113, the tilt surface 111 and the transition surface 112 are arranged obliquely relative to the optical axis of the optical camera lens, the minimum diameter of the tilt surface 111 is smaller than the minimum diameter of the transition surface 112; the five lenses are arranged in the lens barrel 10 in sequence, and are the first lens to the fifth lens from the object side to the image side; the isolation piece located on the image side of the i-th lens and in contact with the image side surface of the i-th lens is the i-th isolation piece, i is selected from 1, 2, 3 and 4; wherein the entrance pupil diameter EPD of the optical camera lens, the inner diameter d0s of the object side end surface of the lens barrel and the effective focal length f of the optical camera lens satisfy: (EPD+d0s) / f>1.1; the inner diameter d0s of the object side end surface of the lens barrel, the effective focal length f1 of the first lens, the inner diameter d0m of the image side end surface of the lens barrel and the effective focal length f5 of the fifth lens satisfy: 0<d0s / f1-d0m / f5<5.0; the on-axis distance TD from the object side surface of the first lens to the image side surface of the fifth lens, the length L of the lens barrel 10, the effective focal length f of the optical camera lens and the maximum field of view FOV of the optical camera lens satisfy: (TD+L) / [f*tan(FOV / 2)]>2.3.

[0056] By reasonably designing the length of the lens barrel and the outer diameter and the inner diameter, the focal length of the lens, the length occupied by all lenses, the effective focal length of the first lens and the fifth lens, the entrance pupil diameter and the inner diameter of the isolation piece, the light amount of the large-aperture camera lens can be effectively controlled, and the light can be more efficiently utilized to participate in imaging. At the same time, the control of the inner diameter size of the image side end surface of the lens barrel can better change the reflection route of the redundant light, reduce the generation of stray light, and the matching of the lenses can balance the spherical aberration and improve the clarity of the imaging. Reasonably adjusting the size of the lens barrel can also make the wall thickness of the entire lens more uniform, the structure more compact and the size smaller, thereby meeting the market demand for ultra-thin and small-sized lenses, optimizing the overall structure of the lens, and forming a five-piece optical camera lens with a small head part and clear imaging.

[0057] Specifically, by setting the minimum diameter of the inclined surface 111 of the lens barrel to be smaller than the minimum diameter of the transition surface 112, the external shape of the lens barrel 10 can be set to be larger at the rear end than at the front end, so that the optical camera lens has a small head, which is conducive to miniaturization. Meanwhile, by limiting (EPD+dOs) / f and dOs / f1-dOm / f5 to be within a reasonable range, dOs and dOm can be controlled to be within a reasonable range, and the head and tail sizes of the optical camera lens are limited to be within a reasonable range, thereby reducing the volume of the lens barrel 10 and further realizing miniaturization, which is conducive to ensuring that the inner wall surface of the lens barrel 10 is in the form of being smaller at the front end than at the rear end, and the outer wall surface of the lens barrel 10 is in the form of being smaller at the front end than at the rear end, so as to limit the wall thickness of the lens barrel 10 to be within a reasonable range, and ensure the structural strength of the lens barrel 10 while ensuring the miniaturization of the optical camera lens. The wall thickness of the lens barrel 10 as a whole is relatively uniform, so that the stress received is relatively uniform, the lens barrel 10 is not prone to deformation, and is easy to demold. Meanwhile, the combination with EPD and f can ensure the amount of light entering under the control of the inner diameter of the object side end surface of the lens barrel, improve the utilization rate of light, maximize the participation of light in imaging, and improve the imaging quality in a dark environment. While ensuring miniaturization, the effective focal lengths of the first lens and the fifth lens are cooperatively arranged to produce positive spherical aberration, which balances the negative spherical aberration of other lenses and improves the imaging quality. Further combined with the control of (TD+L) / [f*tan(FOV / 2)], the length of the lens barrel 10 can be further controlled, the cooperation between the lens and the lens barrel 10 is more stable, the size of the lens barrel 10 is maximized, the structure of the optical camera lens is more compact while ensuring the imaging quality, thereby reducing the size and thickness of the entire mobile phone lens module, which is conducive to miniaturization. Preferably, the optical camera lens satisfies: 1.29≤(EPD+dOs) / f≤1.36.

[0058] Preferably, the lens barrel satisfies: 2.03≤dOs / f1-dOm / f5≤2.91.

[0059] Preferably, the lens barrel satisfies: 2.56≤(TD+L) / [f*tan(FOV / 2)]≤2.66.

[0060] In the embodiment, when the refractive index of the i-th lens is greater than 1.6, the following condition is satisfied: -40.0 < fi / EPji < 40.0, where j = i-1, fi is the effective focal length of the i-th lens, EPji is the distance between the j-th spacer and the i-th spacer, i is selected from 2, 3, 4, and j is selected from 1, 2, 3. Using a lens with a larger refractive index can reduce the thickness of the lens, which is conducive to miniaturization. Applying a lens with a larger refractive index to the head of the optical camera lens can reduce the size of the head. After the light is refracted by the lens with a large refractive index, a larger image can be ensured on the chip. While achieving miniaturization, the imaging quality is improved. However, the light is relatively steep after passing through the lens with a large refractive index, which is easy to reflect to the mechanism part of the lens to produce stray light. Therefore, by controlling the relationship between the focal length of the high refractive index lens and the distance between the spacers on both sides, the position of the spacer can be reasonably adjusted to better block the stray light generated by the lens under the premise of ensuring miniaturization, reduce the stray light generated by the excess light at the position of the high refractive index lens, and make the imaging clearer to achieve the best imaging effect.

[0061] In the embodiment, when the absolute value of the radius of curvature of the object side surface or the image side surface of the i-th lens is less than 5 mm, the following condition is satisfied: -50.0 < fi / (Dim-dim) < 50.0, where fi is the effective focal length of the i-th lens, Dim is the outer diameter of the image side surface of the i-th spacer, dim is the inner diameter of the image side surface of the i-th spacer, and i is selected from 1, 2, 3, 4. By controlling this condition, the lens with an absolute value of the radius of curvature of the object side surface or the image side surface less than 5 mm can have a certain overlap distance under the cooperation of every two adjacent parts, avoiding the shear force generated by the large step difference between the lenses during assembly to deform the lenses and ensuring the assembly stability. That is, a small radius of curvature can ensure that the light at the edges of the two adjacent lenses is not too steep, and the diameter of the two adjacent lenses is minimized to avoid a large step difference between the lenses during assembly. Controlling the difference between the inner and outer diameters of the image side surface of the spacer on which the lens is supported can avoid the shear force generated by the inconsistent height of the two sides of the spacer to deform the spacer, thereby avoiding stray light and also helping to block excess light, which is conducive to the overall improvement of the stray light of the optical camera lens and improves the imaging quality.

[0062] In the embodiment, the following condition is met among the curvature radius R4 of the image side surface of the second lens, the curvature radius R5 of the object side surface of the third lens, the inner diameter d2m of the image side surface of the second spacer, and the outer diameter D2m of the image side surface of the second spacer: -50.0 < (R4+R5) / d2m+(R4+R5) / D2m < 100.0. By controlling (R4+R5) / d2m+(R4+R5) / D2m within a reasonable range, the size of the second lens image side surface and the third lens object side surface is controlled, and the size of the inner and outer diameters of the second spacer image side surface is matched, so that the surface type of the second lens image side surface and the third lens object side surface is more smooth, the structure of the optical camera lens is more compact, which is conducive to miniaturization, and is conducive to correcting off-axis aberration and improving imaging quality. In addition, it is also conducive to improving the stability of the second spacer and the second lens and the third lens. Preferably, -40.05 ≤ (R4+R5) / d2m+(R4+R5) / D2m ≤ 98.87.

[0063] In the embodiment, the maximum thickness of the at least one spacer is greater than 0.08 mm. This is conducive to the adjustment of the field curvature and improves the peak value (MTF value of the central field of view or the edge field of view) of the optical system, making it closer to the design value, and is conducive to improving the imaging quality.

[0064] In the embodiment, when the maximum thickness of the ith spacer is greater than 0.08 mm, the following condition is met: -20.0 < R2i / Dim < 5.0, where R2i is the curvature radius of the image side surface of the ith lens, Dim is the outer diameter of the image side surface of the ith spacer, and i is selected from 1, 2, 3, and 4. By controlling the relationship between the curvature radius of the lens image side surface and the outer diameter of the image side surface of the spacer on which it is supported, the thickness of the lens at that position and the increase in the radius of the lens caused by the spacer can be controlled, which is conducive to miniaturization.

[0065] For example, by controlling R8 / D4m within a reasonable range, the thickness of the fourth lens, the curvature radius of the image side surface, and the distance between the third lens and the fourth lens can be controlled. The larger the interval, the easier it is to select the spacer element, the greater the stray light improvement space, and the more conducive to improving the overall stray light quality of the lens. At the same time, the molding difficulty is reduced.

[0066] In the embodiment, the fourth spacer has an image-side outer diameter D4m, the fourth spacer has an image-side inner diameter d4m, the fourth lens has an image-side radius of curvature R8, the fifth lens has an object-side radius of curvature R9, and the fifth lens has an image-side radius of curvature R10. The following condition is established: |(D4m+d4m) / (R8+R9+R10)|<50.0. By controlling |(D4m+d4m) / (R8+R9+R10)| within a reasonable range, the deflection angle of the edge field at the surface of the two adjacent lenses can be controlled within a reasonable range, the sensitivity of the system can be effectively reduced, and the contact area of the image-side surface of the fourth spacer and the adjacent components can be controlled, thereby improving the assembly stability. Preferably, 2.82≤|(D4m+d4m) / (R8+R9+R10)|≤26.11.

[0067] In the embodiment, the fourth lens has a center thickness CT4, the fourth lens and the fifth lens have an air separation T45 along the optical axis, and the fifth lens has a center thickness CT5. The length L1 of the extension surface 113 along the optical axis of the optical camera lens, the center thickness CT4 of the fourth lens, the air separation T45 of the fourth lens and the fifth lens along the optical axis, and the center thickness CT5 of the fifth lens satisfy the following condition: 0.5

[0068] In the embodiment, the third lens has a center thickness CT3, the third lens and the fourth lens have an air separation T34 along the optical axis of the optical camera lens, the second spacer and the third spacer have a distance EP23, and the third spacer has a maximum thickness CP3. The center thickness CT3 of the third lens, the air separation T34 of the third lens and the fourth lens along the optical axis of the optical camera lens, the distance EP23 between the second spacer and the third spacer, and the maximum thickness CP3 of the third spacer satisfy the following condition: 0.5<(CT3+T34) / (EP23+CP3)<3.0. By controlling (CT3+T34) / (EP23+CP3) within a reasonable range, since the light passing through the third lens and the fourth lens is steep and the thickness of the third spacer is large, controlling the center thickness of the third lens and the distance between the second spacer and the third spacer can make the shape of the third lens more uniform, reduce the reflection of excess light, avoid generating more stray light, and improve the imaging quality. Preferably, 1.12≤(CT3+T34) / (EP23+CP3)≤1.93.

[0069] In the embodiment, the effective focal length f4 of the fourth lens, the central thickness CT4 of the fourth lens, and the distance EP34 between the third spacer and the fourth spacer satisfy: 10.0 < f4 / CT4 + f4 / EP34 < 80.0. By limiting f4 / CT4 + f4 / EP34 within a reasonable range, since the light passing through the fourth lens and the fifth lens is steep and the middle fourth spacer is thick, controlling the thickness of the fourth lens and the distance between the third spacer and the fourth spacer is beneficial to make the shape of the fourth lens more uniform, reduce stray light generation, and improve the imaging quality in cooperation with the effective focal length of the fourth lens. Preferably, 15.20 ≤ f4 / CT4 + f4 / EP34 ≤ 53.61.

[0070] In the embodiment, the effective focal length f5 of the fifth lens, the curvature radius R9 of the object side surface of the fifth lens, the distance EP34 between the third spacer and the fourth spacer, the maximum thickness CP4 of the fourth spacer, and the curvature radius R10 of the image side surface of the fifth lens satisfy: -20.0 < (f5 / R9) / (EP34 / CP4) + (f5 / R10) / (EP34 / CP4) < 0. By limiting (f5 / R9) / (EP34 / CP4) + (f5 / R10) / (EP34 / CP4) within a reasonable range, the coma contribution rate of the fourth lens can be controlled within a reasonable range, effectively reducing the sensitivity of the optical camera lens, while ensuring miniaturization and improving the imaging quality. Preferably, -14.45 ≤ (f5 / R9) / (EP34 / CP4) + (f5 / R10) / (EP34 / CP4) ≤ -6.29.

[0071] In the embodiment, the optical camera lens further includes a fourth auxiliary spacer, the fourth auxiliary spacer is located on the image side of the fourth spacer and in contact with the image side surface of the fourth spacer, and the distance between the fourth auxiliary spacer and the object side end surface of the lens barrel is greater than the distance between the fourth auxiliary spacer and the image side end surface of the lens barrel. By setting the fourth auxiliary spacer, the fourth spacer and the fourth lens in front can be effectively supported, and the relative position of the fourth lens and the fifth lens is stable. The distance between the fourth auxiliary spacer and the object side end surface of the lens barrel is greater than the distance between the fourth auxiliary spacer and the image side end surface of the lens barrel, that is, the fourth auxiliary spacer is arranged close to the rear end of the lens, which ensures the stability of the tail end of the lens, ensures that the physical optical camera lens after assembly is consistent with the theoretical design, and ensures the imaging quality.

[0072] In the embodiment, the optical camera lens further comprises a fourth auxiliary spacer, and the effective focal length f4 of the fourth lens, the effective focal length f5 of the fifth lens, the outer diameter D4bm of the image side of the fourth auxiliary spacer, and the inner diameter d4bm of the image side of the fourth auxiliary spacer satisfy: 1.0 < (f4-f5) / (D4bm-d4bm) < 20.0. By limiting (f4-f5) / (D4bm-d4bm) within a reasonable range, the light path can be effectively controlled, and the light is not too steep to make the fourth lens and the fifth lens too sensitive. By controlling the difference between the inner diameter and the outer diameter of the image side of the fourth auxiliary spacer, the excess light can be blocked, the stray light can be reduced, the imaging quality can be improved, and enough bearing area can be ensured at both ends of the fourth auxiliary spacer to improve the assembly stability. Preferably, 4.78 ≤ (f4-f5) / (D4bm-d4bm) ≤ 12.76.

[0073] In the embodiment, the inner diameter of the image side of the second spacer is the smallest among the inner diameters of the image sides of all the spacers, the radius of curvature R3 of the object side of the second lens, and the radius of curvature R4 of the image side of the second lens satisfy: R3 > R4, and the radius of curvature R4 of the image side of the second lens and the radius of curvature R5 of the object side of the third lens satisfy: |R4| < |R5|. By setting the inner diameter of the image side of the second spacer to be the smallest among the inner diameters of the image sides of all the spacers, the excess light can be intercepted at the front end of the lens, the stray light can be reduced, and the imaging quality can be improved. By controlling R3 > R4, the processability of the second lens can be improved, and by further controlling |R4| < |R5|, the deflection angles of the edge field of view at the image side of the second lens and the object side of the third lens can be reasonably controlled within a reasonable range, and the sensitivity of the system can be effectively reduced.

[0074] In the embodiment, the effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens satisfy: |f3| > |f4|, and the effective focal length f4 of the fourth lens and the effective focal length f5 of the fifth lens satisfy: f4 > f5. By reasonably controlling the effective focal lengths of the third lens, the fourth lens, and the fifth lens, reasonable positive third-order spherical aberration and negative fifth-order spherical aberration can be contributed, the negative third-order spherical aberration and the positive fifth-order spherical aberration generated by the rear optical elements can be balanced, the optical camera lens can have smaller spherical aberration to ensure good imaging quality of the on-axis field of view, and it is also conducive to realizing short focal length and miniaturization.

[0075] Embodiment Two

[0076] As Figures 1 to 22As shown, the optical camera lens includes a lens barrel 10, five lenses and a plurality of isolation pieces, an outer wall surface of the lens barrel 10 includes a tilt surface 111, a transition surface 112 and an extension surface 113 connected in sequence, an object side end surface of the lens barrel is connected with the tilt surface 111, an image side end surface of the lens barrel is connected with the extension surface 113, the tilt surface 111 and the transition surface 112 are arranged obliquely relative to an optical axis of the optical camera lens, a minimum diameter of the tilt surface 111 is smaller than a minimum diameter of the transition surface 112; the five lenses are arranged in the lens barrel 10 in sequence, and are a first lens to a fifth lens from the object side to the image side; an isolation piece located on the image side of the i-th lens and in contact with the image side surface of the i-th lens is an i-th isolation piece, i is selected from 1, 2, 3 and 4; wherein the inner diameter d0s of the object side end surface of the lens barrel, the effective focal length f1 of the first lens, the inner diameter d0m of the image side end surface of the lens barrel and the effective focal length f5 of the fifth lens satisfy: 0 < d0s / f1-d0m / f5 < 5.0; the on-axis distance TD from the object side surface of the first lens to the image side surface of the fifth lens, the length L of the lens barrel, the effective focal length f of the optical camera lens and the maximum field of view FOV of the optical camera lens satisfy: (TD+L) / [f*tan(FOV / 2)] > 2.3; the center thickness CT3 of the third lens, the air gap T34 of the third lens and the fourth lens on the optical axis of the optical camera lens, the distance EP23 of the second isolation piece and the third isolation piece, and the maximum thickness CP3 of the third isolation piece satisfy: 0.5 < (CT3+T34) / (EP23+CP3) < 3.0.

[0077] By setting the minimum diameter of the inclined surface 111 of the lens barrel to be smaller than the minimum diameter of the transition surface 112, the external shape of the lens barrel 10 can be set to be smaller at the front end and larger at the rear end, so that the optical camera lens has a small head, which is conducive to miniaturization. Meanwhile, by limiting d0s / f1-d0m / f5 within a reasonable range, d0s and d0m can be controlled within a reasonable range, and the head and tail sizes of the optical camera lens are limited within a reasonable range, so as to reduce the volume of the lens barrel 10, thereby realizing miniaturization. This is conducive to ensuring that the shape of the inner wall surface of the lens barrel 10 is smaller at the front end and larger at the rear end, which matches the external shape of the lens barrel 10, so as to limit the wall thickness of the lens barrel 10 within a reasonable range. In the case of ensuring the miniaturization of the optical camera lens, the structural strength of the lens barrel 10 is ensured, and the wall thickness of the lens barrel 10 as a whole is relatively uniform, so that the stress is relatively uniform, the lens barrel 10 is not prone to deformation, and it is easy to demold. Further combining the control of (TD+L) / [f*tan(FOV / 2)], the length of the lens barrel 10 can be further controlled, the cooperation between the lens and the lens barrel 10 is more stable, the size of the lens barrel 10 is used to the maximum extent, the structure of the optical camera lens is more compact while the imaging quality is ensured, which is conducive to miniaturization. Meanwhile, in combination with the shorter length of the lens group and the short focal length, the volume of the optical camera lens is further reduced, and the characteristics of a large image surface are also realized, which enriches the information of the image surface and improves the imaging quality while ensuring miniaturization. By controlling (CT3+T34) / (EP23+CP3) within a reasonable range, since the light rays passing through the third lens and the fourth lens are relatively steep and the thickness of the middle third spacer is relatively large, the center thickness of the third lens and the distance between the second spacer and the third spacer are controlled, which is conducive to making the shape of the third lens more uniform and reducing the reflection of excess light, thereby avoiding generating more stray light and improving the imaging quality while ensuring miniaturization.

[0078] Preferably, the center thickness CT3 of the third lens, the air gap T34 of the third lens and the fourth lens on the optical axis of the optical camera lens, the distance EP23 of the second spacer and the third spacer, and the maximum thickness CP3 of the third spacer satisfy: 1.12≤(CT3+T34) / (EP23+CP3)≤1.93.

[0079] Preferably, the entrance pupil diameter EPD of the optical camera lens, the inner diameter d0s of the object side end surface of the lens barrel, and the effective focal length f of the optical camera lens satisfy: 1.29≤(EPD+d0s) / f≤1.36.

[0080] Preferably, the inner diameter d0s of the object side end surface of the lens barrel, the effective focal length f1 of the first lens, the inner diameter d0m of the image side end surface of the lens barrel, and the effective focal length f5 of the fifth lens satisfy: 2.03≤d0s / f1-d0m / f5≤2.91.

[0081] Preferably, the on-axis distance TD from the object side surface of the first lens to the image side surface of the fifth lens, the length L of the lens barrel 10, the effective focal length f of the optical camera lens, and the maximum field of view FOV of the optical camera lens satisfy: 2.56 ≤ (TD+L) / [f*tan(FOV / 2)] ≤ 2.66.

[0082] In the embodiment, when the refractive index of the ith lens is greater than 1.6, -40.0 < fi / EPji < 40.0 is satisfied, where j = i-1, fi is the effective focal length of the ith lens, EPji is the distance between the jth spacer and the ith spacer, i is selected from 2, 3, 4, and j is selected from 1, 2, 3. Using a lens with a larger refractive index can reduce the thickness of the lens, which is conducive to miniaturization. Applying a lens with a larger refractive index to the head of the optical camera lens can reduce the size of the head. After the light is refracted by the lens with a large refractive index, it can ensure that a larger image is formed on the chip. While achieving miniaturization, it is also conducive to improving imaging quality. However, after the light passes through the lens with a large refractive index, the light is relatively steep and is easily reflected onto the mechanism part of the lens, producing stray light. The inner diameter of the spacer and the structure of the mechanism part need to be adjusted to improve the stray light. Therefore, by controlling the relationship between the focal length of the high-refractive-index lens and the distance between the two spacers, the stray light caused by the excess light at the position of the high-refractive-index lens is reduced under the premise of miniaturization, making the imaging clearer and achieving the best imaging effect.

[0083] In the embodiment, when the absolute value of the radius of curvature of the object side surface or the image side surface of the ith lens is less than 5 mm, -50.0 < fi / (Dim-dim) < 50.0 is satisfied, where fi is the effective focal length of the ith lens, Dim is the outer diameter of the image side surface of the ith spacer, dim is the inner diameter of the image side surface of the ith spacer, and i is selected from 1, 2, 3, 4. Through this condition control, it can be ensured that the lens with an absolute value of the radius of curvature of the object side surface or the image side surface less than 5 mm has a certain overlapping distance under the cooperation of every two adjacent parts, avoiding the shear force caused by the large step difference of the lens during assembly to deform the lens, and ensuring the assembly stability. Controlling the difference between the inner and outer diameters of the image side surface of the spacer on which the lens is supported can avoid the shear force on the spacer caused by the inconsistent height of the two sides of the spacer, which deforms the spacer, thereby avoiding the generation of stray light, and is also conducive to shielding the excess light, which helps to improve the overall stray light of the optical camera lens and improve the imaging quality.

[0084] In the embodiment, the following condition is met among the curvature radius R4 of the image side surface of the second lens, the curvature radius R5 of the object side surface of the third lens, the inner diameter d2m of the image side surface of the second spacer, and the outer diameter D2m of the image side surface of the second spacer: -50.0 < (R4+R5) / d2m+(R4+R5) / D2m < 100.0. By controlling (R4+R5) / d2m+(R4+R5) / D2m within a reasonable range, the size of the angle of view of the image side surface of the second lens and the object side surface of the third lens is controlled, the size of the inner and outer diameters of the image side surface of the second spacer is matched, the surface shape of the image side surface of the second lens and the object side surface of the third lens is smoother, the structure of the optical camera lens is more compact, which is beneficial to miniaturization, while being beneficial to correcting off-axis aberration and improving imaging quality. In addition, it is also beneficial to improve the stability of the second spacer and the second lens and the third lens. Preferably, -40.05 ≤ (R4+R5) / d2m+(R4+R5) / D2m ≤ 98.87.

[0085] In the embodiment, the maximum thickness of the at least one spacer is greater than 0.08 mm. This is beneficial to the adjustment of field curvature, improves the peak value of the optical system, makes it closer to the design value, and is beneficial to improving the imaging quality.

[0086] In the embodiment, when the maximum thickness of the ith spacer is greater than 0.08 mm, the following condition is met: -20.0 < R2i / Dim < 5.0, where R2i is the curvature radius of the image side surface of the ith lens, Dim is the outer diameter of the image side surface of the ith spacer, and i is selected from 1, 2, 3, and 4. By controlling the relationship between the curvature radius of the image side surface of the lens and the outer diameter of the image side surface of the spacer on which the lens is supported, the thickness of the lens at this position and the increase in the radius of the lens caused by the spacer are controlled, which is beneficial to miniaturization.

[0087] For example, by controlling R8 / D4m within a reasonable range, the thickness of the fourth lens is controlled, the curvature radius of the image side surface and the distance interval between the third lens and the fourth lens are controlled; the larger the interval, the easier to select the spacer element, the greater the stray light improvement space, and the more conducive to improving the overall stray light quality of the lens; while reducing the difficulty of molding.

[0088] In the embodiment, the following conditions are met: |(D4m+d4m) / (R8+R9+R10)|<50.0, where D4m is the outer diameter of the image-side surface of the fourth spacer, d4m is the inner diameter of the image-side surface of the fourth spacer, R8 is the curvature radius of the image-side surface of the fourth lens, R9 is the curvature radius of the object-side surface of the fifth lens, and R10 is the curvature radius of the image-side surface of the fifth lens. By controlling |(D4m+d4m) / (R8+R9+R10)| within a reasonable range, the deflection angle of the edge field at the image-side surface of the fourth lens and the object-side surface of the fifth lens can be reasonably controlled, the sensitivity of the system can be effectively reduced, and the contact area between the image-side surface of the fourth spacer and adjacent components can be controlled, thereby improving the assembly stability. Preferably, 2.82≤|(D4m+d4m) / (R8+R9+R10)|≤26.11.

[0089] In the embodiment, the following conditions are met: 0.5

[0090] In the embodiment, the following conditions are met: 10.0

[0091] In the embodiment, the effective focal length f5 of the fifth lens, the radius of curvature R9 of the object side surface of the fifth lens, the distance EP34 between the third spacer and the fourth spacer, the maximum thickness CP4 of the fourth spacer, and the radius of curvature R10 of the image side surface of the fifth lens satisfy -20.0 < (f5 / R9) / (EP34 / CP4) + (f5 / R10) / (EP34 / CP4) < 0. By limiting (f5 / R9) / (EP34 / CP4) + (f5 / R10) / (EP34 / CP4) in a reasonable range, the coma contribution rates of the fourth lens and the fifth lens can be controlled in a reasonable range, the sensitivity of the optical camera lens is effectively reduced, the imaging quality is improved while the miniaturization is ensured. Preferably, -14.45 ≤ (f5 / R9) / (EP34 / CP4) + (f5 / R10) / (EP34 / CP4) ≤ -6.29.

[0092] In the embodiment, the optical camera lens further includes a fourth auxiliary spacer, the fourth auxiliary spacer is located on the image side of the fourth spacer and in contact with the image side surface of the fourth spacer, and the distance between the fourth auxiliary spacer and the object side end surface of the lens barrel is greater than the distance between the fourth auxiliary spacer and the image side end surface of the lens barrel. By arranging the fourth auxiliary spacer, the fourth spacer and the fourth lens in front can be effectively supported, and the relative positions of the fourth lens and the fifth lens are stable. The distance between the fourth auxiliary spacer and the object side end surface of the lens barrel is greater than the distance between the fourth auxiliary spacer and the image side end surface of the lens barrel, that is, the fourth auxiliary spacer is arranged close to the rear end of the lens, which ensures the assembly stability of the tail end of the lens, ensures that the physical optical camera lens after assembly is consistent with the theoretical design, and ensures the imaging quality.

[0093] In the embodiment, the optical camera lens further includes a fourth auxiliary spacer, the effective focal length f4 of the fourth lens, the effective focal length f5 of the fifth lens, the outer diameter D4bm of the image side surface of the fourth auxiliary spacer, and the inner diameter d4bm of the image side surface of the fourth auxiliary spacer satisfy 1.0 < (f4-f5) / (D4bm-d4bm) < 20.0. By limiting (f4-f5) / (D4bm-d4bm) in a reasonable range, the light distribution can be effectively controlled, the excessive light can be blocked, the stray light can be reduced, the imaging quality can be improved, and the assembly stability can be improved. Preferably, 4.78 ≤ (f4-f5) / (D4bm-d4bm) ≤ 12.76.

[0094] In the embodiment, the inner diameter of the image side surface of the second spacer is the smallest among the inner diameters of the image side surfaces of all the spacers, the radius of curvature R3 of the object side surface of the second lens, the radius of curvature R4 of the image side surface of the second lens satisfy R3>R4, and the radius of curvature R4 of the image side surface of the second lens, the radius of curvature R5 of the object side surface of the third lens satisfy |R4|<|R5|. By setting the inner diameter of the image side surface of the second spacer to be the smallest among the inner diameters of the image side surfaces of all the spacers, the extra light rays can be intercepted at the front end of the lens, the stray light can be reduced, and the imaging quality can be improved. By controlling R3>R4, the processability of the second lens can be improved, and by further controlling |R4|<|R5|, the deflection angles of the edge field of view at the image side surface of the second lens and the object side surface of the third lens can be reasonably controlled within a reasonable range, and the sensitivity of the system can be effectively reduced.

[0095] In the embodiment, the effective focal length f3 of the third lens, the effective focal length f4 of the fourth lens satisfy |f3|>|f4|, and the effective focal length f4 of the fourth lens, the effective focal length f5 of the fifth lens satisfy f4>f5. By reasonably controlling the effective focal lengths of the third lens, the fourth lens and the fifth lens, reasonable positive third-order spherical aberration and negative fifth-order spherical aberration can be contributed, the negative third-order spherical aberration and the positive fifth-order spherical aberration generated by the rear optical elements can be balanced, the optical camera lens can have smaller spherical aberration, the on-axis field of view can have good imaging quality, and meanwhile, it is beneficial to realize short focal length and miniaturization.

[0096] Optionally, the optical camera lens can further include a filter for correcting color deviation and / or a protection glass for protecting the photosensitive element located on the imaging surface.

[0097] The optical camera lens in the application can adopt multiple lenses, for example, five lenses as described above. By reasonably allocating the effective focal lengths, surface shapes, central thicknesses of the lenses and the on-axis distances between the lenses, the aperture of the optical camera lens can be effectively increased, the sensitivity of the lens can be reduced, and the processability of the lens can be improved, so that the optical camera lens is more beneficial to production and processing and can be applied to portable electronic devices such as smart phones.

[0098] In the application, at least one of the lens surfaces of each lens is a non-spherical lens surface. The non-spherical lens has the characteristic that the curvature continuously changes from the center of the lens to the periphery of the lens. Unlike the spherical lens which has constant curvature from the center of the lens to the periphery of the lens, the non-spherical lens has better curvature radius characteristics and has the advantages of improving distortion aberration and improving astigmatism aberration. After adopting the non-spherical lens, the aberration that occurs during imaging can be eliminated as much as possible, thereby improving the imaging quality.

[0099] However, those skilled in the art should understand that the number of lenses constituting the optical camera lens can be changed without departing from the technical solutions claimed by the present application, to obtain the various results and advantages described in the specification. For example, although described in the embodiments by way of example with five lenses, the optical camera lens is not limited to including five lenses. If necessary, the optical camera lens can also include other numbers of lenses.

[0100] Figure 1 A structural schematic diagram of one optical camera lens of the present application is shown, Figure 1 The parameters d0s, CP4, EP12, etc. are also marked in the middle to clearly and intuitively understand the meaning of the parameters. In order to facilitate the display of the optical camera lens structure and the specific surface shape, these parameters are no longer embodied in the drawings when specific examples are described subsequently.

[0101] Wherein, Dis refers to the outer diameter of the object side surface of the i-th spacer, dis refers to the inner diameter of the object side surface of the i-th spacer, Dim refers to the outer diameter of the image side surface of the i-th spacer, and dim refers to the inner diameter of the image side surface of the i-th spacer. d0s is the inner diameter of the object side end surface of the lens barrel, and i takes values from 1, 2, 3, and 4. D0s is the outer diameter of the object side end surface of the lens barrel, d0m is the inner diameter of the image side end surface of the lens barrel, D0m is the outer diameter of the image side end surface of the lens barrel, the total length L of the lens barrel 10 is the distance from the object side end surface to the image side end surface of the lens barrel, and the length L1 of the extension surface 113 is the length in the direction of the optical axis. EPij refers to the distance along the optical axis between the image side surface of the i-th spacer and the object side surface of the j-th spacer, wherein i and j are both positive integers greater than or equal to 1, i takes values from 1, 2, and 3, j takes values from 2, 3, and 4, and j > i.

[0102] It should be noted that the object side end surface of the lens barrel in the present application is the end surface of the front end of the lens barrel 10 close to the object, and the image side end surface is the end surface of the rear end of the lens barrel 10 close to the imaging surface. Both the object side end surface and the image side end surface are perpendicular to the optical axis of the optical camera lens. The inclined surface 111 is disposed away from the optical axis from the object side to the image side, the transition surface 112 is disposed away from the optical axis from the object side to the image side, the angle between the inclined surface 111 and the optical axis is smaller than the angle between the transition surface 112 and the optical axis, and both the angle between the inclined surface 111 and the optical axis and the angle between the transition surface 112 and the optical axis are smaller than 90 degrees. Since the inclined surface 111 is connected to the transition surface 112, that is, the maximum diameter of the inclined surface 111 is equal to the minimum diameter of the transition surface 112. The main extension direction of the extension surface 113 is parallel to the optical axis, that is, the distance between the end close to the object side of the extension surface 113 and the optical axis is equal to the distance between the end close to the image side and the optical axis. Such a design is conducive to realizing a small head part, and is also conducive to reducing the rear end aperture and miniaturization.

[0103] It should be noted that the fifth lens is arranged in the space surrounded by the extension surface 113, and since there is a large gap between the fourth lens and the fifth lens, the diameter of the extension surface 113 needs to be large to accommodate the fifth lens in the space surrounded by the extension surface 113. The transition surface 112 is arranged to connect the inclined surface 111 and the extension surface 113, which can avoid the deformation of the outer wall surface of the lens barrel 10 due to the excessively large bending degree, and is beneficial to the processing and forming of the lens barrel 10, and ensures the stability of the optical camera lens.

[0104] The specific surface shape and parameters of the optical camera lens applicable to the above embodiments are further described below with reference to the accompanying drawings.

[0105] It should be noted that in the following examples, there are first, second and third states, and the curvature radius, center thickness and other parameters of the first lens, the second lens, the third lens, the fourth lens and the fifth lens of the optical camera lens in the first state, the second state and the third state in the same example are the same, but the thickness of the lens barrel 10, the inner diameter of the spacer, the outer diameter of the spacer and the distance between the spacers are different, and the shapes of some lenses are different. In other words, the main structure for imaging is the same, and the auxiliary structure for imaging is different.

[0106] It should be noted that any one of the following examples one to three is applicable to all embodiments of the present application.

[0107] Example One

[0108] As shown in Figures 2 to 8 , the optical camera lens of example one of the present application is described. Figure 2 shows a structure schematic diagram of the optical camera lens of example one in the first state, Figure 3 shows a structure schematic diagram of the optical camera lens of example one in the second state, Figure 4 shows a structure schematic diagram of the optical camera lens of example one in the third state.

[0109] As shown in Figures 2 to 4 , the optical camera lens sequentially includes, from the object side to the image side: a first lens E1, a first spacer P1, a second lens E2, a second spacer P2, a third lens E3, a third spacer P3, a third auxiliary spacer P3b, a fourth lens E4, a fourth spacer P4, a fourth auxiliary spacer P4b, and a fifth lens E5.

[0110] In Figures 2 to 4In the embodiment, the first lens E1 and the second lens E2 are in abutment with the first spacer P2. The second lens E2 and the third lens E3 are in abutment with the second spacer P2. There are two spacers between the third lens E3 and the fourth lens E4 to realize one-step step difference setting, and the thickness of the third spacer is greater than the thickness of the third auxiliary spacer. There are two spacers between the fourth lens E4 and the fifth lens E5 to realize one-step step difference setting, which is conducive to the stable abutment of each structure. The inner diameter of the object side surface of the third auxiliary spacer is smaller than the inner diameter of the image side surface of the third spacer, so as to intercept stray light reflected by the inner diameter surface of the third spacer and improve the imaging quality. The inner diameter of the object side surface of the fourth auxiliary spacer is smaller than the inner diameter of the image side surface of the fourth spacer, so as to intercept stray light reflected by the inner diameter surface of the fourth spacer and improve the imaging quality. The abutment area of the image side surface of the third auxiliary spacer and the object side surface of the fourth lens is greater than the abutment area of the object side surface of the third auxiliary spacer and the image side surface of the third spacer, so as to enhance the stability of the fourth lens when abutting. The abutment area of the image side surface of the fourth auxiliary spacer and the object side surface of the fifth lens is greater than the abutment area of the object side surface of the fourth auxiliary spacer and the image side surface of the fourth spacer, so as to enhance the stability of the fifth lens when abutting.

[0111] The object side surface S1 of the first lens is a convex surface, and the image side surface S2 of the first lens is a concave surface. The object side surface S3 of the second lens is a convex surface, and the image side surface S4 of the second lens is a concave surface. The object side surface S5 of the third lens is a concave surface, and the image side surface S6 of the third lens is a convex surface. The object side surface S7 of the fourth lens is a convex surface, and the image side surface S8 of the fourth lens is a convex surface. The object side surface S9 of the fifth lens is a convex surface, and the image side surface S10 of the fifth lens is a concave surface.

[0112] In the example, the effective focal length f of the optical camera lens is 3.72 mm, and the entrance pupil diameter EPD is 2.11 mm.

[0113] In the example, EP34<EP23<EP12, which is conducive to controlling the edge thickness of the lens and ensuring the miniaturization of the optical camera lens.

[0114] In the present example, the refractive index of the second lens is greater than 1.6, the effective focal length f2 of the second lens, the distance between the first spacer and the second spacer satisfy -19.12≤f2 / EP12≤-17.26. The absolute value of the curvature radius of the object side surface of the first lens is less than 5mm, the effective focal length f1 of the first lens, the outer diameter D1m of the image side surface of the first spacer, the inner diameter d1m of the image side surface of the first spacer satisfy: 2.79≤f1 / (D1m-d1m)≤3.07. The thickness of the third spacer is greater than 0.08mm, the curvature radius R6 of the image side surface of the third lens, the outer diameter D3m of the image side surface of the third spacer satisfy: -11.71≤R6 / D3m≤-11.4. The thickness of the fourth spacer is greater than 0.08mm, the curvature radius R8 of the image side surface of the fourth lens, the outer diameter D4m of the image side surface of the fourth spacer satisfy: -0.46≤R8 / D4m≤-0.45.

[0115] Table 1 shows the basic structure parameter table of the optical camera lens of example one, wherein the units of the curvature radius, thickness / distance are millimeters mm.

[0116]

[0117]

[0118] Table 1

[0119] In example one, the object side surface and the image side surface of any one of the first lens E1 to the fifth lens E5 are aspherical surfaces, and the surface type of each aspherical lens can be defined by, but not limited to, the following aspherical surface formula:

[0120]

[0121] Wherein x is the distance from the vertex of the aspherical surface when the aspherical surface is at a height of h along the optical axis, the height of the distance vector; c is the paraxial curvature of the aspherical surface, c=1 / R, that is, the paraxial curvature c is the reciprocal of the curvature radius R in Table 1 above; k is the conic coefficient; Ai is the correction coefficient of the i-th order of the aspherical surface. Table 2 below gives the high-order coefficient A4, A6, A8, A10, A12, A14, A16, A18, A20, A22, A24, A26 which can be used for each aspherical mirror S1-S10 in example one.

[0122]

[0123]

[0124] Table 2

[0125] Figure 5An on-axis chromatic aberration curve of the optical camera lens of Example One is shown, which represents the convergence point deviation of light rays of different wavelengths after passing through the optical camera lens. Figure 6 A distortion curve of the optical camera lens of Example One is shown, which represents the distortion size values corresponding to different field angles. Figure 7 A distortion curve of the optical camera lens of Example One is shown, which represents the distortion size values corresponding to different field angles. Figure 8 A distortion curve of the optical camera lens of Example One is shown, which represents the distortion size values corresponding to different field angles.

[0126] According to Figures 5 to 8 It can be known that the optical camera lens provided in Example One can achieve good imaging quality.

[0127] Example Two

[0128] As Figures 9 to 15 shown, the optical camera lens of Example Two of the present application is described. Figure 9 A structural schematic diagram of the optical camera lens of Example Two in a first state is shown, Figure 10 A structural schematic diagram of the optical camera lens of Example Two in a second state is shown, Figure 11 A structural schematic diagram of the optical camera lens of Example Two in a third state is shown. For the sake of brevity, part of the similar description with Example One will be omitted.

[0129] As Figures 9 to 11 shown, the optical camera lens sequentially comprises, from the object side to the image side: a first lens E1, a first spacer P1, a second lens E2, a second spacer P2, a third lens E3, a third spacer P3, a third auxiliary spacer P3b, a fourth lens E4, a fourth spacer P4, a fourth auxiliary spacer P4b, and a fifth lens E5.

[0130] In Figures 9 to 11In the embodiment, the first lens E1 and the second lens E2 are in abutment with the first spacer P2. The second lens E2 and the third lens E3 are in abutment with the second spacer P2. The third lens E3 and the fourth lens E4 are in abutment with two spacers to realize one-step step difference setting, and the thickness of the third spacer is greater than the thickness of the third auxiliary spacer. The fourth lens E4 and the fifth lens E5 are in abutment with two spacers to realize one-step step difference setting, which is conducive to the stable abutment of each structure. The inner diameter of the object side surface of the third auxiliary spacer is smaller than the inner diameter of the image side surface of the third spacer, so as to intercept stray light reflected by the inner diameter surface of the third spacer and improve the imaging quality. The inner diameter of the object side surface of the fourth auxiliary spacer is smaller than the inner diameter of the image side surface of the fourth spacer, so as to intercept stray light reflected by the inner diameter surface of the fourth spacer and improve the imaging quality. The abutment area of the image side surface of the third auxiliary spacer and the object side surface of the fourth lens is greater than the abutment area of the object side surface of the third auxiliary spacer and the image side surface of the third spacer, so as to enhance the stability of the fourth lens when abutting. The abutment area of the image side surface of the fourth auxiliary spacer and the object side surface of the fifth lens is greater than the abutment area of the object side surface of the fourth auxiliary spacer and the image side surface of the fourth spacer, so as to enhance the stability of the fifth lens when abutting.

[0131] The object side surface S1 of the first lens is a convex surface, and the image side surface S2 of the first lens is a concave surface. The object side surface S3 of the second lens is a convex surface, and the image side surface S4 of the second lens is a concave surface. The object side surface S5 of the third lens is a convex surface, and the image side surface S6 of the third lens is a concave surface. The object side surface S7 of the fourth lens is a convex surface, and the image side surface S8 of the fourth lens is a convex surface. The object side surface S9 of the fifth lens is a convex surface, and the image side surface S10 of the fifth lens is a concave surface.

[0132] In the example, the effective focal length f of the optical camera lens is 3.78 mm, and the entrance pupil diameter EPD is 2.18 mm.

[0133] In the example, in the first state, EP34<EP12<EP23, in the second state, EP34<EP23<EP12, and in the third state, EP34<EP23<EP12. This is conducive to controlling the edge thickness of the lens and ensuring the miniaturization of the optical camera lens.

[0134] In the present example, the refractive index of the second lens is greater than 1.6, the effective focal length f2 of the second lens, the distance between the first spacer and the second spacer satisfy -21.81≤f2 / EP12≤-19.16. The absolute value of the curvature radius of the object side surface of the first lens is less than 5mm, the effective focal length f1 of the first lens, the outer diameter D1m of the image side surface of the first spacer, the inner diameter d1m of the image side surface of the first spacer satisfy: 2.73≤f1 / (D1m-d1m)≤3.46. The absolute value of the curvature radius of the object side surface and the image side surface of the third lens are both less than 5mm, the effective focal length f3 of the third lens, the outer diameter D3m of the image side surface of the third spacer, the inner diameter d3m of the image side surface of the third spacer satisfy: -30.68≤f3 / (D3m-d3m)≤-23.30. The thickness of the third spacer is greater than 0.08mm, the curvature radius R6 of the image side surface of the third lens, the outer diameter D3m of the image side surface of the third spacer satisfy: 2.46≤R6 / D3m≤2.59. The thickness of the fourth spacer is greater than 0.08mm, the curvature radius R8 of the image side surface of the fourth lens, the outer diameter D4m of the image side surface of the fourth spacer satisfy: -0.39≤R8 / D4m≤-0.38.

[0135] Table 3 shows the basic structure parameter table of the optical camera lens of example two, wherein the units of the curvature radius, thickness / distance are millimeter mm.

[0136]

[0137] Table 3

[0138] Table 4 gives the high order term coefficients of each aspherical surface S1-S10 which can be used in example two, wherein each aspherical surface type can be defined by the formula 1 given in example one above.

[0139]

[0140]

[0141] Table 4

[0142] Figure 12 The axial chromatic aberration curve of the optical camera lens of example two is shown, which represents the convergence focus deviation of light rays of different wavelengths after passing through the optical camera lens. Figure 13 The astigmatism curve of the optical camera lens of example two is shown, which represents the meridional image surface curvature and sagittal image surface curvature. Figure 14 The distortion curve of the optical camera lens of example two is shown, which represents the distortion size value corresponding to different field angles of view. Figure 15 The magnification chromatic aberration curve of the optical camera lens of example two is shown, which represents the deviation of light rays on the imaging surface after passing through the optical camera lens.

[0143] According to Figures 12 to 15 It can be seen that the optical camera lens provided in Example Two can achieve good imaging quality.

[0144] Example Three

[0145] As shown in Figures 16 to 22 , the optical camera lens of Example Three of the present application is described. Figure 16 shows a structural schematic diagram of the optical camera lens of Example Three in a first state, Figure 17 shows a structural schematic diagram of the optical camera lens of Example Three in a second state, Figure 18 shows a structural schematic diagram of the optical camera lens of Example Three in a third state.

[0146] As shown in Figure 16 , the optical camera lens sequentially comprises, from the object side to the image side: a first lens E1, a first spacer P1, a second lens E2, a second spacer P2, a third lens E3, a third spacer P3, a fourth lens E4, a fourth spacer P4, a fourth auxiliary spacer P4b, and a fifth lens E5.

[0147] In Figures 16 to 18 , the first lens E1 and the second lens E2 are both in abutment with the first spacer P2. The second lens E2 and the third lens E3 are both in abutment with the second spacer P2. The third lens E3 and the fourth lens E4 are both in abutment with the third spacer P3. There are two spacers between the fourth lens E4 and the fifth lens E5 to achieve a one-step step difference setting, which is conducive to the stable abutment of each structure. The inner diameter of the object side surface of the fourth auxiliary spacer is smaller than the inner diameter of the image side surface of the fourth spacer, so as to intercept stray light reflected by the inner diameter surface of the fourth spacer and improve the imaging quality. The abutment area of the image side surface of the fourth auxiliary spacer and the object side surface of the fifth lens is greater than the abutment area of the object side surface of the fourth auxiliary spacer and the image side surface of the fourth spacer, so as to enhance the stability of the fifth lens when it is in abutment.

[0148] The object side surface S1 of the first lens is a convex surface, and the image side surface S2 of the first lens is a concave surface. The object side surface S3 of the second lens is a convex surface, and the image side surface S4 of the second lens is a concave surface. The object side surface S5 of the third lens is a convex surface, and the image side surface S6 of the third lens is a concave surface. The object side surface S7 of the fourth lens is a concave surface, and the image side surface S8 of the fourth lens is a convex surface. The object side surface S9 of the fifth lens is a convex surface, and the image side surface S10 of the fifth lens is a concave surface.

[0149] In this example, the effective focal length f of the optical camera lens is 2.15 mm, and the entrance pupil diameter EPD is 2.15 mm.

[0150] In this example, EP23<EP34<EP12, which is conducive to controlling the edge thickness of the lens and ensuring the miniaturization of the optical camera lens.

[0151] In the present example, the refractive index of the second lens is greater than 1.6, the effective focal length f2 of the second lens and the distance between the first spacer and the second spacer satisfy -21.81≤f2 / EP12≤-19.16. The refractive index of the fourth lens is greater than 1.6, the effective focal length f4 of the fourth lens and the distance between the fourth spacer and the third spacer satisfy 27.17≤f4 / EP34≤29.80. The absolute value of the curvature radius of the object side surface of the first lens is less than 5mm, the effective focal length f1 of the first lens, the outer diameter D1m of the image side surface of the first spacer and the inner diameter d1m of the image side surface of the first spacer satisfy 2.84≤f1 / (D1m-d1m)≤3.43. The absolute values of the curvature radius of the object side surface and the image side surface of the third lens are both less than 5mm, the effective focal length f3 of the third lens, the outer diameter D3m of the image side surface of the third spacer and the inner diameter d3m of the image side surface of the third spacer satisfy 11.52≤f3 / (D3m-d3m)≤12.99. The thickness of the third spacer is greater than 0.08mm, the curvature radius R6 of the image side surface of the third lens and the outer diameter D3m of the image side surface of the third spacer satisfy -1.40≤R6 / D3m≤-1.36.

[0152] Table 5 shows the basic structure parameter table of the optical camera lens of Example Three, wherein the units of the curvature radius, thickness / distance, effective radius are all millimeter mm.

[0153]

[0154] Table 5

[0155] Table 6 gives the high order term coefficients of each aspherical surface S1-S10 which can be used in Example Three, wherein each aspherical surface type can be defined by the formula 1 given in Example One above.

[0156]

[0157]

[0158] Table 6

[0159] Figure 19 The axial chromatic aberration curve of the optical camera lens of Example Three is shown, which represents the convergence focal point deviation of light rays of different wavelengths after passing through the optical camera lens. Figure 20 The astigmatism curve of the optical camera lens of Example Three is shown, which represents the meridional image surface curvature and sagittal image surface curvature. Figure 21 The distortion curve of the optical camera lens of Example Three is shown, which represents the distortion size values corresponding to different field angles of view. Figure 22 The magnification chromatic aberration curve of the optical camera lens of Example Three is shown, which represents the deviation of light rays on the imaging surface after passing through the optical camera lens.

[0160] According to Figures 19 to 22 It can be seen that the optical camera lens provided in Example Three can achieve good imaging quality.

[0161] In summary, Examples One to Three respectively satisfy the relationships shown in Table 7.

[0162]

[0163]

[0164] Table 7

[0165] Table 8 gives some parameters of the optical camera lenses of Examples One to Three.

[0166]

[0167] Table 8

[0168] It should be noted that 1-1 in Table 7 and Table 8 represents the first state of the optical camera lens in Example One, 1-2 represents the second state of the optical camera lens in Example One, 1-3 represents the third state of the optical camera lens in Example One, 2-1 represents the first state of the optical camera lens in Example Two, 2-2 represents the second state of the optical camera lens in Example Two, 2-3 represents the third state of the optical camera lens in Example Two, 3-1 represents the first state of the optical camera lens in Example Three, 3-2 represents the second state of the optical camera lens in Example Three, and 3-3 represents the third state of the optical camera lens in Example Three.

[0169] Table 9 gives the effective focal lengths of the lenses of the optical camera lens of the present application.

[0170] Base data / Examples 1 2 3 f1 (mm) 3.41 3.53 3.47 f2 (mm) -8.53 -8.83 -9.20 f3 (mm) 547.13 -19.36 22.35 f4 (mm) 4.02 3.60 13.56 f5 (mm) -3.08 -3.45 -5.02 f (mm) 3.72 3.78 3.85 EPD (mm) 2.11 2.18 2.15

[0171] Table 9

[0172] The present application also provides an imaging device, the electronic photosensitive element of which can be a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS). The imaging device can be a standalone imaging apparatus such as a digital camera, or an imaging module integrated on a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical camera lens described above.

[0173] Obviously, the above-described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

[0174] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting, as the scope of the exemplary embodiments of this application is limited only by the appended claims. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Also, unless otherwise indicated herein, the materials described herein can be used in a variety of applications.

[0175] It should be noted that the terms "first", "second", and the like, as used herein, are intended to modify any one of the identified objects, but do not imply a specific order or sequence, unless otherwise specifically indicated. It is to be understood that the use of the term "about" in describing the embodiments of this application is intended to convey that the description is an approximation, and that the embodiments of this application are not limited to the precise values, conditions, materials, or configurations described, but rather, are intended to convey that the embodiments of this application encompass variations that are equivalent in function, value, or result.

[0176] The preferred embodiments of the application are described above in detail. The application is not limited to the embodiments described above, but can vary and modify in various forms. Any and all modifications, equivalents, or improvements based on the principles of the application are intended to be included in the scope of the application.

Claims

1. An optical camera lens characterized in that, The lens barrel comprises: a lens barrel, an outer wall surface of the lens barrel comprising a tilt surface, a transition surface and an extension surface connected in sequence, an object side end surface of the lens barrel being connected with the tilt surface, an image side end surface of the lens barrel being connected with the extension surface, the tilt surface and the transition surface being arranged obliquely relative to an optical axis of the optical camera lens, a minimum diameter of the tilt surface being smaller than a minimum diameter of the transition surface; five lenses, the five lenses being arranged in the lens barrel in sequence, and being a first lens to a fifth lens from the object side to the image side; a plurality of spacers, an i-th spacer being a spacer located on the image side of the i-th lens and being in contact with the image side surface of the i-th lens, i being selected from 1, 2, 3 and 4; wherein the total number of lenses with optical power of the optical camera lens is five, the first lens has positive optical power, the object side surface of the first lens is a convex surface, the image side surface of the first lens is a concave surface, the second lens has negative optical power, the object side surface of the second lens is a convex surface, the image side surface of the second lens is a concave surface, the fourth lens has positive optical power, the image side surface of the fourth lens is a convex surface, the fifth lens has negative optical power, the object side surface of the fifth lens is a convex surface, and the image side surface of the fifth lens is a concave surface; an entrance pupil diameter EPD of the optical camera lens, an inner diameter d0s of the object side end surface of the lens barrel and an effective focal length f of the optical camera lens satisfy: 1.29≤(EPD+d0s) / f≤1.36; an inner diameter d0s of the object side end surface of the lens barrel, an effective focal length f1 of the first lens, an inner diameter d0m of the image side end surface of the lens barrel and an effective focal length f5 of the fifth lens satisfy: 2.03≤d0s / f1-d0m / f5≤2.91; an on-axis distance TD from the object side surface of the first lens to the image side surface of the fifth lens, a length L of the lens barrel, an effective focal length f of the optical camera lens and a maximum field of view FOV of the optical camera lens satisfy: 2.56≤(TD+L) / [f*tan(FOV / 2)]≤2.66; an inner diameter of the image side surface of the second spacer is the smallest among the inner diameters of the image side surfaces of all the spacers, a curvature radius R3 of the object side surface of the second lens and a curvature radius R4 of the image side surface of the second lens satisfy: R3>R4, and the curvature radius R4 of the image side surface of the second lens and a curvature radius R5 of the object side surface of the third lens satisfy: |R4|<|R5|.

2. The optical camera lens according to claim 1, characterized in that, When the refractive index of the i-th lens is greater than 1.6, -40.0<fi / EPji<40.0 is satisfied, wherein j=i-1, fi is an effective focal length of the i-th lens, EPji is a distance between the j-th spacer and the i-th spacer, i is selected from 2, 3 and 4, and j is selected from 1, 2 and 3.

3. The optical camera lens according to claim 1, characterized in that, -50.0 < fi / (Dim-dim) < 50.0 is satisfied when the absolute value of the radius of curvature of the object side surface or the image side surface of the i-th lens is less than 5 mm, wherein fi is the effective focal length of the i-th lens, Dim is the outer diameter of the image side surface of the i-th spacer, dim is the inner diameter of the image side surface of the i-th spacer, and i is selected from 1, 2, 3, and 4.

4. The optical camera lens according to claim 1, characterized in that, -40.05 ≤ (R4+R5) / d2m+(R4+R5) / D2m ≤ 98.87 is satisfied among the radius of curvature R4 of the image side surface of the second lens, the radius of curvature R5 of the object side surface of the third lens, the inner diameter d2m of the image side surface of the second spacer, and the outer diameter D2m of the image side surface of the second spacer.

5. The optical camera lens according to claim 1, characterized in that, The maximum thickness of at least one of the spacers is greater than 0.08 mm.

6. The optical camera lens according to claim 1, characterized in that, -20.0 < R2i / Dim < 5.0 is satisfied when the maximum thickness of the i-th spacer is greater than 0.08 mm, wherein R2i is the radius of curvature of the image side surface of the i-th lens, Dim is the outer diameter of the image side surface of the i-th spacer, and i is selected from 1, 2, 3, and 4.

7. The optical camera lens according to claim 1, characterized in that, 2.82 ≤ |(D4m+d4m) / (R8+R9+R10)| ≤ 26.11 is satisfied among the outer diameter D4m of the image side surface of the fourth spacer, the inner diameter d4m of the image side surface of the fourth spacer, the radius of curvature R8 of the image side surface of the fourth lens, the radius of curvature R9 of the object side surface of the fifth lens, and the radius of curvature R10 of the image side surface of the fifth lens.

8. The optical camera lens according to any one of claims 1 to 7, characterized in that, 0.93 ≤ L1 / (CT4+T45+CT5) ≤ 1.28 is satisfied among the length L1 of the extension surface along the direction of the optical axis of the optical camera lens, the center thickness CT4 of the fourth lens, the air separation T45 of the fourth lens and the fifth lens on the optical axis, and the center thickness CT5 of the fifth lens.

9. The optical camera lens according to any one of claims 1 to 7, characterized in that, 1.12 ≤ (CT3+T34) / (EP23+CP3) ≤ 1.93 0.5 < (CT3+T34) / (EP23+CP3) < 3.0 is satisfied among the center thickness CT3 of the third lens, the air separation T34 of the third lens and the fourth lens on the optical axis of the optical camera lens, the distance EP23 of the second spacer and the third spacer, and the maximum thickness CP3 of the third spacer.

10. The optical camera lens according to any one of claims 1 to 7, characterized in that, 15.20 ≤ f4 / CT4+f4 / EP34 ≤ 53.61 is satisfied among the effective focal length f4 of the fourth lens, the center thickness CT4 of the fourth lens, and the distance EP34 of the third spacer and the fourth spacer.

11. The optical camera lens according to any one of claims 1 to 7, characterized in that, -14.45 ≤ (f5 / R9) / (EP34 / CP4)+(f5 / R10) / (EP34 / CP4) ≤ -6.29 is satisfied among the effective focal length f5 of the fifth lens, the radius of curvature R9 of the object side surface of the fifth lens, the distance EP34 of the third spacer and the fourth spacer, the maximum thickness CP4 of the fourth spacer, and the radius of curvature R10 of the image side surface of the fifth lens.

12. The optical camera lens according to any one of claims 1 to 7, characterized in that, The optical camera lens further comprises a fourth auxiliary isolation piece located on the image side of the fourth isolation piece and in contact with the image side surface of the fourth isolation piece, and the distance between the fourth auxiliary isolation piece and the object side end surface of the lens barrel is greater than the distance between the fourth auxiliary isolation piece and the image side end surface of the lens barrel.

13. The optical camera lens according to any one of claims 1 to 7, characterized in that, The optical camera lens further comprises a fourth auxiliary isolation piece located on the image side of the fourth isolation piece and in contact with the image side surface of the fourth isolation piece, and the distance between the fourth auxiliary isolation piece and the object side end surface of the lens barrel is greater than the distance between the fourth auxiliary isolation piece and the image side end surface of the lens barrel.

14. The optical camera lens according to any one of claims 1 to 7, characterized in that, The effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens satisfy: |f3|>|f4|, and the effective focal length f4 of the fourth lens and the effective focal length f5 of the fifth lens satisfy: f4>f5.

15. An optical camera lens characterized in that, Comprise: A lens barrel, an outer wall surface of the lens barrel comprising a tilt surface, a transition surface and an extension surface connected in sequence, an object side end surface of the lens barrel connected with the tilt surface, an image side end surface of the lens barrel connected with the extension surface, the tilt surface and the transition surface being arranged obliquely relative to an optical axis of the optical camera lens, and a minimum diameter of the tilt surface being smaller than a minimum diameter of the transition surface; Five lenses, the five lenses being arranged in the lens barrel in sequence and being a first lens to a fifth lens from the object side to the image side; A plurality of isolation pieces, an isolation piece located on the image side of the i-th lens and in contact with the image side surface of the i-th lens being the i-th isolation piece, i being selected from 1, 2, 3 and 4; The optical camera lens has a total number of five lenses with optical power, the first lens has positive optical power, the object side surface of the first lens is convex, the image side surface of the first lens is concave, the second lens has negative optical power, the object side surface of the second lens is convex, the image side surface of the second lens is concave, the fourth lens has positive optical power, the image side surface of the fourth lens is convex, the fifth lens has negative optical power, the object side surface of the fifth lens is convex, and the image side surface of the fifth lens is concave. The inner diameter d0s of the object side end surface of the lens barrel, the effective focal length f1 of the first lens, the inner diameter d0m of the image side end surface of the lens barrel and the effective focal length f5 of the fifth lens satisfy: 2.03≤d0s / f1-d0m / f5≤2.

91. The on-axis distance TD from the object side surface of the first lens to the image side surface of the fifth lens, the length L of the lens barrel, the effective focal length f of the optical camera lens and the maximum field of view FOV of the optical camera lens satisfy: 2.56≤(TD+L) / [f*tan(FOV / 2)]≤2.

66. A center thickness CT3 of the third lens, an air interval T34 of the third lens and the fourth lens on an optical axis of the optical camera lens, a distance EP23 of the second spacer and the third spacer, and a maximum thickness CP3 of the third spacer satisfy: 1.12≤(CT3+T34) / (EP23+CP3)≤1.

93. An inner diameter of an image side surface of the second spacer is the smallest among inner diameters of image side surfaces of all the spacers, a curvature radius R3 of an object side surface of the second lens, and a curvature radius R4 of an image side surface of the second lens satisfy: R3>R4, and the curvature radius R4 of the image side surface of the second lens and a curvature radius R5 of an object side surface of the third lens satisfy: |R4|<|R5|.

16. The optical camera lens according to claim 15, characterized in that, When a refractive index of the ith lens is greater than 1.6, -40.0<fi / EPji<40.0 is satisfied, where j=i-1, fi is an effective focal length of the ith lens, EPji is a distance between the jth spacer and the ith spacer, i is selected from 2, 3, 4, and j is selected from 1, 2, 3.

17. The optical camera lens according to claim 15, characterized in that, When an absolute value of a curvature radius of an object side surface or an image side surface of the ith lens is less than 5 mm, -50.0<fi / (Dim-dim)<50.0 is satisfied, where fi is an effective focal length of the ith lens, Dim is an outer diameter of an image side surface of the ith spacer, dim is an inner diameter of the image side surface of the ith spacer, and i is selected from 1, 2, 3, 4.

18. The optical camera lens according to claim 15, characterized in that, A curvature radius R4 of an image side surface of the second lens, a curvature radius R5 of an object side surface of the third lens, an inner diameter d2m of an image side surface of the second spacer, and an outer diameter D2m of the image side surface of the second spacer satisfy: -40.05≤(R4+R5) / d2m+(R4+R5) / D2m≤98.

87.

19. The optical camera lens according to claim 15, characterized in that, A maximum thickness of at least one of the spacers is greater than 0.08 mm.

20. The optical camera lens according to claim 15, characterized in that, When a maximum thickness of the ith spacer is greater than 0.08 mm, -20.0<R2i / Dim<5.0 is satisfied, where R2i is a curvature radius of an image side surface of the ith lens, Dim is an outer diameter of an image side surface of the ith spacer, and i is selected from 1, 2, 3, 4.

21. The optical camera lens according to claim 15, characterized in that, An outer diameter D4m of an image side surface of the fourth spacer, an inner diameter d4m of the image side surface of the fourth spacer, a curvature radius R8 of an image side surface of the fourth lens, a curvature radius R9 of an object side surface of the fifth lens, and a curvature radius R10 of an image side surface of the fifth lens satisfy: 2.82≤|(D4m+d4m) / (R8+R9+R10)|≤26.

11.

22. The optical camera lens according to any one of claims 15-21, wherein, A length L1 of the extension surface along a direction of an optical axis of the optical camera lens, a center thickness CT4 of the fourth lens, an air interval T45 of the fourth lens and the fifth lens on the optical axis, and a center thickness CT5 of the fifth lens satisfy: 0.93≤L1 / (CT4+T45+CT5)≤1.

28.

23. The optical camera lens according to any one of claims 15-21, wherein, The effective focal length f4 of the fourth lens, the center thickness CT4 of the fourth lens, and the distance EP34 between the third and fourth spacers satisfy: 15.20≤f4 / CT4+f4 / EP34≤53.

61.

24. The optical camera lens according to any one of claims 15-21, wherein, The effective focal length f5 of the fifth lens, the radius of curvature R9 of the object side surface of the fifth lens, the distance EP34 between the third and fourth spacers, the maximum thickness CP4 of the fourth spacer, and the radius of curvature R10 of the image side surface of the fifth lens satisfy: -14.45≤(f5 / R9) / (EP34 / CP4)+(f5 / R10) / (EP34 / CP4)≤-6.

29.

25. The optical camera lens according to any one of claims 15-21, wherein, The optical camera lens further includes a fourth auxiliary spacer located on the image side of the fourth spacer and in contact with the image side surface of the fourth spacer, and the distance between the fourth auxiliary spacer and the object side end surface of the lens barrel is greater than the distance between the fourth auxiliary spacer and the image side end surface of the lens barrel.

26. The optical camera lens according to any one of claims 15-21, wherein, The optical camera lens further includes a fourth auxiliary spacer located on the image side of the fourth spacer and in contact with the image side surface of the fourth spacer, and the effective focal length f4 of the fourth lens, the effective focal length f5 of the fifth lens, the outer diameter D4bm of the image side surface of the fourth auxiliary spacer, and the inner diameter d4bm of the image side surface of the fourth auxiliary spacer satisfy: 4.78≤(f4-f5) / (D4bm-d4bm)≤12.

76.

27. The optical camera lens according to any one of claims 15-21, wherein, The effective focal length f3 of the third lens and the effective focal length f4 of the fourth lens satisfy: |f3|>|f4|, and the effective focal length f4 of the fourth lens and the effective focal length f5 of the fifth lens satisfy: f4>f5.

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