Optical imaging lens

Abstract

The utility model discloses an optical imaging lens, which comprises a lens barrel, a lens group and a separator group, and is characterized in that the lens group comprises a first lens, a second lens, a third lens, a fourth lens and a sixth lens which are sequentially arranged from an object side to an image side along an optical axis, the first lens, the second lens and the fifth lens all have negative focal power, and the third lens, the fourth lens and the sixth lens all have positive focal power; the inner wall of the near object side end of the lens barrel and the peripheral surface of the first lens partially abut against each other; the non-light-transmitting part of the image side surface of the first lens and the non-light-transmitting part of the object side surface of the second lens are partially supported against each other; the inner diameter d0s of the object side end face of the lens cone, the half Semi-FOV of the maximum field angle of the optical imaging lens and the effective focal length f of the optical imaging lens meet the following formula:-4lt; d0s / tan (Semi-FOV) / flt; -2; the outer diameter D0s of the object side end face of the lens barrel, the outer diameter D0m of the image side end face of the lens barrel, the effective focal length f1 of the first lens and the effective focal length f6 of the sixth lens meet the following conditions:-1lt; (D0s-D0m) / (f1-f6) lt; 0.

Description

Technical Field

[0001] This application relates to the field of optical elements, and more particularly, to an optical imaging lens. Background Art

[0002] With the progress of technology, consumer electronic products such as mobile phones, VR devices, and drones often obtain spatial information, take photos and videos through optical lenses. Lenses with characteristics such as high resolution and large field of view have broad application prospects. Among them, the six-piece ultra-wide-angle lens has problems such as a large lens head, a large diameter difference between the large end and the small end of the lens, poor overall structural stability, and easy deformation during the assembly process, which seriously affect the performance and yield of the lens and urgently need to be solved. Summary of the Utility Model

[0003] This application provides an optical imaging lens, which may include a lens barrel, a lens group, and an isolation member group. At least part of the lens group and the isolation member group are accommodated in the lens barrel. The lens group includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens arranged in sequence from the object side to the image side along the optical axis. Among them, the first lens has a negative optical power, the second lens has a negative optical power, the third lens has a positive optical power, the fourth lens has a positive optical power, the fifth lens has a negative optical power, and the sixth lens has a positive optical power; an inner wall of the near-object side end of the lens barrel and an outer peripheral surface of the first lens partially abut against each other; a non-transmissive part of the image side surface of the first lens and a non-transmissive part of the object side surface of the second lens partially abut against each other; the optical imaging lens satisfies: -4 < d0s / tan(Semi-FOV) / f < -2; and -1 < (D0s - D0m) / (f1 - f6) < 0, where d0s is the inner diameter of the object side end face of the lens barrel, Semi-FOV is half of the maximum field of view angle of the optical imaging lens, f is the effective focal length of the optical imaging lens, D0s is the outer diameter of the object side end face of the lens barrel, D0m is the outer diameter of the image side end face of the lens barrel, f1 is the effective focal length of the first lens, and f6 is the effective focal length of the sixth lens.

[0004] In one embodiment, the diameter DT12 of the transmissive part of the image side surface of the first lens, the inner diameter d0m of the image side end face of the lens barrel, and the diameter DT62 of the transmissive part of the image side surface of the sixth lens satisfy: 0.5 < d0s / DT12 - d0m / DT62 < 2.

[0005] In one embodiment, the maximum height L of the lens barrel along the optical axis direction satisfies: 0.5 < L / D0s < 0.7.

[0006] In one embodiment, the isolation member group includes: a second isolation member, located between the second lens and the third lens, and its object side surface is partially supported by the image side surface of the second lens; a third isolation member, located between the third lens and the fourth lens, and its object side surface is partially supported by the image side surface of the third lens; the outer diameter D2s of the object side surface of the second isolation member, the outer diameter D3s of the object side surface of the third isolation member, and the effective focal length f3 of the third lens satisfy: 0<(D2s-D3s) / f3<0.5.

[0007] In one embodiment, the isolation member group includes: a third isolation member, located between the third lens and the fourth lens, and having its object side surface partially abutting against the image side surface of the third lens; a third auxiliary isolation member, located on the image side of the third isolation member, and having its image side surface partially abutting against the object side surface of the fourth lens; an outer diameter D3bm of the image side surface of the third auxiliary isolation member, an inner diameter d3bm of the image side surface of the third auxiliary isolation member, and a diameter DT41 of the light transmitting portion of the object side surface of the fourth lens satisfy: 0.8<(D3bm-d3bm) / DT41<2.

[0008] In one embodiment, the spacer group includes: a second spacer, located between the second lens and the third lens, and the object side surface of the second spacer is partially supported by the image side surface of the second lens; the distance EP02 from the object side end surface of the lens barrel to the object side surface of the second spacer on the optical axis and the effective focal length f2 of the second lens satisfy: -2 <EP02 / (f1-f2)<0。

[0009] In one embodiment, the spacer group includes: a second spacer, located between the second lens and the third lens, and its object side surface is partially supported by the image side surface of the second lens; a third spacer, located between the third lens and the fourth lens, and its object side surface is partially supported by the image side surface of the third lens; the distance EP23 from the image side surface of the second spacer to the object side surface of the third spacer on the optical axis, the curvature radius R5 of the object side surface of the third lens, and the curvature radius R6 of the image side surface of the third lens satisfy: -1 <EP23 / (R5+R6)<0.1。

[0010] In one embodiment, the spacer group includes: a second spacer, located between the second lens and the third lens, and its object side surface is partially supported by the image side surface of the second lens; a third spacer, located between the third lens and the fourth lens, and its object side surface is partially supported by the image side surface of the third lens; the distance EP02 from the object side end surface of the lens barrel to the object side surface of the second spacer on the optical axis, the center thickness CT2 of the second lens on the optical axis, the distance EP23 from the image side surface of the second spacer to the object side surface of the third spacer on the optical axis, and the center thickness CT3 of the third lens on the optical axis satisfy: 0.5 <EP02 / CT2-EP23 / CT3<3。

[0011] In one embodiment, a curvature radius R10 of the image side surface of the fifth lens, a curvature radius R11 of the object side surface of the sixth lens, and a distance T56 from the image side surface of the fifth lens to the object side surface of the sixth lens on the optical axis satisfy: 15<(R10+R11) / T56<40; and the spacer group includes: a fifth spacer, which is located between the fifth lens and the sixth lens, and has a gap between its object side surface and the image side surface of the fifth lens.

[0012] In one embodiment, the isolation member group also includes: an assembly isolation member, located between the fourth lens and the fifth isolation member, whose object side surface partially bears against the image side surface of the fourth lens, whose image side surface partially bears against the object side surface of the fifth isolation member, and whose outer peripheral surface partially bears against the inner wall of the lens barrel.

[0013] In one embodiment, the inner diameter d5m of the image side surface of the fifth spacer, the on-axis distance SAG52 from the intersection of the image side surface of the fifth lens and the optical axis to the effective radius vertex of the image side surface of the fifth lens, and the on-axis distance SAG61 from the intersection of the object side surface of the sixth lens and the optical axis to the effective radius vertex of the object side surface of the sixth lens satisfy: 4 <d5m / (SAG52+SAG61)<6。

[0014] In one embodiment, the inner diameter dAm of the image side surface of the assembled isolation member, the inner diameter d5s of the object side surface of the fifth isolation member, the outer diameter D5m of the image side surface of the fifth isolation member, and the diameter DT61 of the light transmitting portion of the object side surface of the sixth lens satisfy: 0.4<(dAm-d5s) / (D5m-DT61)<0.8.

[0015] In one embodiment, the optical imaging lens further includes: an auxiliary lens barrel located at the object side end of the lens barrel, and the inner annular surface of the auxiliary lens barrel matches the outer peripheral surface of the near object side end of the lens barrel.

[0016] In one embodiment, in any plane passing through the optical axis, the angle between the line segment corresponding to the inner ring surface of the auxiliary barrel and the line segment corresponding to the inner inclined surface adjacent to the inner ring surface of the auxiliary barrel is an obtuse angle.

[0017] The optical imaging lens according to an embodiment of the present application includes a barrel, a lens group, and an isolation member group. The lens group and the isolation member group are at least partially accommodated in the barrel. The lens group includes first to sixth lenses arranged in sequence from the object side to the image side along the optical axis. Among them, the first lens has a negative optical power, the second lens has a negative optical power, the third lens has a positive optical power, the fourth lens has a positive optical power, the fifth lens has a negative optical power, and the sixth lens has a positive optical power; the inner wall of the near-object side end of the barrel and the outer peripheral surface of the first lens partially abut against each other; the non-light-transmitting part of the image side surface of the first lens and the non-light-transmitting part of the object side surface of the second lens partially abut against each other. The inner diameter d0s of the object side end surface of the barrel, half of the maximum field of view Semi-FOV of the optical imaging lens, and the effective focal length f of the optical imaging lens satisfy the conditional formula -4 < d0s / tan(Semi-FOV) / f < -2. The outer diameter D0s of the object side end surface of the barrel, the outer diameter D0m of the image side end surface of the barrel, the effective focal length f1 of the first lens, and the effective focal length f6 of the sixth lens satisfy the conditional formula -1 < (D0s - D0m) / (f1 - f6) < 0. If the value of the conditional formula (D0s - D0m) / (f1 - f6) is higher than the upper limit, for example, greater than 0, it will cause the tail lens structure area to be too long, and there will be problems with lens demolding and difficulty in molding; if it is lower than the lower limit, for example, less than -1, it will cause large lens segment differences and unstable assembly. For the optical imaging lens according to an embodiment of the present application, while achieving ultra-large field of view imaging of the lens, improving the resolution of the lens, and improving the imaging quality, by controlling D0s, D0m, f1, and f6 to satisfy the conditional formula -1 < (D0s - D0m) / (f1 - f6) < 0, the aperture difference between the large end and the small end of the lens is controlled within a reasonable range, ensuring the overall structural stability of the lens and reducing deformation during the assembly process; and at the same time, controlling the lateral dimension of the lens within a reasonable range. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] With reference to the accompanying drawings, through the following detailed description of non-limiting embodiments, other features, objects, and advantages of the present application will become more apparent. In the drawings:

[0019] Figure 1 The structure and related parameter schematic diagram of the optical imaging lens according to an exemplary embodiment of the present application are shown;

[0020] Figure 2 The structural schematic diagram of the optical imaging lens according to Embodiment 1 of the present application is shown;

[0021] Figure 3A schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application is shown;

[0022] Figure 4 A schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application is shown;

[0023] Figures 5 to 7 The axial chromatic aberration curve, astigmatism curve and distortion curve of the optical imaging lens according to Embodiment 1, Embodiment 2 and Embodiment 3 of the present application are shown;

[0024] Figure 8 A schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application is shown;

[0025] Fig. 9 A schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application is shown;

[0026] Fig.10 A schematic structural diagram of an optical imaging lens according to Embodiment 6 of the present application is shown;

[0027] Figures 11 to 13 The axial chromatic aberration curve, astigmatism curve and distortion curve of the optical imaging lens according to Embodiment 4, Embodiment 5 and Embodiment 6 of the present application are shown;

[0028] Fig.14 A schematic structural diagram of an optical imaging lens according to Embodiment 7 of the present application is shown;

[0029] Fig.15 A schematic structural diagram of an optical imaging lens according to Embodiment 8 of the present application is shown;

[0030] Fig.16 A schematic structural diagram of an optical imaging lens according to Embodiment 9 of the present application is shown; and

[0031] Figures 17 to 19 The axial chromatic aberration curve, astigmatism curve and distortion curve of the optical imaging lens according to Embodiment 7, Embodiment 8 and Embodiment 9 of the present application are shown;

[0032] Fig. 20 The force analysis of the optical imaging lens when the condition (D0s-D0m) / (f1-f6)=-1.3 is shown; and

[0033] Fig.21 The force analysis of the optical imaging lens when the condition (D0s-D0m) / (f1-f6)=-0.8 is shown. DETAILED DESCRIPTION

[0034] In order to better understand the present application, a more detailed description will be made of various aspects of the present application with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0035] It should be noted that in this specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the features. Therefore, without departing from the teaching of the present application, the first lens discussed below may also be referred to as the second lens or the third lens.

[0036] In the drawings, the thickness, size and shape of the lenses have been slightly exaggerated for ease of explanation. Specifically, the shapes of the spherical or aspherical surfaces shown in the drawings are shown by way of example. That is, the shapes of the spherical or aspherical surfaces are not limited to the shapes of the spherical or aspherical surfaces shown in the drawings. The drawings are only examples and are not drawn strictly to scale.

[0037] In this article, the paraxial area refers to the area near the optical axis. If the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface is convex at least in the paraxial area; if the lens surface is concave and the position of the concave surface is not defined, it means that the lens surface is concave at least in the paraxial area. The judgment of the surface type in the paraxial area can be judged according to the general method in this field, for example, the positive and negative R value (R refers to the radius of curvature of the paraxial area) is used to judge the concave and convex. In this article, the surface of each lens closest to the subject is called the object side of the lens, and the surface of each lens closest to the imaging surface is called the image side of the lens. For the object side, when the R value is positive, it is judged as a convex surface, and when the R value is negative, it is judged as a concave surface; for the image side, when the R value is positive, it is judged as a concave surface, and when the R value is negative, it is judged as a convex surface.

[0038] It should also be understood that the terms "comprises", "including", "having", "includes" and / or "comprising", when used in this specification, indicate the presence of the stated features, elements and / or components, but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire listed features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application". And, the term "exemplary" is intended to refer to an example or illustration.

[0039] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as commonly understood by ordinary technicians in the field to which this application belongs. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having the same meaning as their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in this article.

[0040] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can also be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0041] The features, principles and other aspects of the present application are described in detail below.

[0042] The optical imaging lens according to the exemplary embodiment of the present application may include a lens barrel, a lens group and a spacer group, and the lens group and the spacer group may be assembled in or at least partially assembled in the lens barrel. The lens group may be a six-piece lens group, including a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens arranged in sequence from the object side to the image side along the optical axis.

[0043] In exemplary embodiments, the first lens may have negative power, the second lens may have negative power, the third lens may have positive power, the fourth lens may have positive power, the fifth lens may have negative power, and the sixth lens may have positive power.

[0044] In an exemplary embodiment, the inner wall / inner annular surface of the lens barrel near the object side may bear against the outer peripheral surface of the first lens. Figure 2 Exemplarily, the inner wall of the object side end of the lens barrel P0 is the SP01 surface indicated in the figure, and the outer peripheral surface of the first lens E1 is the SE11 surface indicated in the figure.

[0045] In an exemplary embodiment, a non-light-transmitting portion / non-effective-diameter portion on the image-side surface of the first lens and a non-light-transmitting portion / non-effective-diameter portion on the object-side surface of the second lens partially bear against each other.

[0046] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula -4 < d0s / tan(Semi-FOV) / f < -2, where d0s is the inner diameter of the object-side end face of the lens barrel (i.e., the end face or surface of the lens barrel closest to the object side), Semi-FOV is half of the maximum field of view angle of the optical imaging lens, and f is the effective focal length of the optical imaging lens.

[0047] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula -1 < (D0s - D0m) / (f1 - f6) < 0, where D0s is the outer diameter of the object-side end face of the lens barrel, D0m is the outer diameter of the image-side end face of the lens barrel (i.e., the end face or surface of the lens barrel closest to the image side), f1 is the effective focal length of the first lens, and f6 is the effective focal length of the sixth lens.

[0048] The optical imaging lens according to an embodiment of the present application includes a lens barrel, a lens group, and an isolation member group. The lens group and the isolation member group are at least partially accommodated in the lens barrel. The lens group includes first to sixth lenses arranged in sequence from the object side to the image side along the optical axis. Among them, the first lens has a negative optical power, the second lens has a negative optical power, the third lens has a positive optical power, the fourth lens has a positive optical power, the fifth lens has a negative optical power, and the sixth lens has a positive optical power; the inner wall of the near-object-side end of the lens barrel and the outer peripheral surface of the first lens partially abut against each other; the non-transmissive part of the image-side surface of the first lens and the non-transmissive part of the object-side surface of the second lens partially abut against each other. The inner diameter d0s of the object-side end face of the lens barrel, half of the maximum field of view angle Semi-FOV of the optical imaging lens, and the effective focal length f of the optical imaging lens satisfy the conditional formula -4 < d0s / tan(Semi-FOV) / f < -2. The outer diameter D0s of the object-side end face of the lens barrel, the outer diameter D0m of the image-side end face of the lens barrel, the effective focal length f1 of the first lens, and the effective focal length f6 of the sixth lens satisfy the conditional formula -1 < (D0s - D0m) / (f1 - f6) < 0. If the value of the conditional formula (D0s - D0m) / (f1 - f6) is higher than the upper limit, for example, greater than 0, it will cause the tail lens structure area to be too long, and there will be problems with lens demolding and difficulty in molding; if it is lower than the lower limit, for example, less than -1, it will cause large lens segment differences and unstable assembly. The optical imaging lens according to an embodiment of the present application, while achieving ultra-large field of view imaging of the lens, improving the resolution of the lens, and improving the imaging quality, controls D0s, D0m, f1, and f6 to satisfy the conditional formula -1 < (D0s - D0m) / (f1 - f6) < 0, controls the aperture difference between the large end and the small end of the lens within a reasonable range, ensures the overall structural stability of the lens, reduces deformation during the assembly process; and at the same time controls the lateral dimension of the lens (i.e., the dimension of the lens along the optical axis) within a reasonable range.

[0049] See Appendix Fig. 20 and 21, respectively showing the force analysis of the optical imaging lens under two different conditions of (D0s - D0m) / (f1 - f6) = -1.3 and (D0s - D0m) / (f1 - f6) = -0.8. By comparison, it can be seen that when the value of the conditional formula (D0s - D0m) / (f1 - f6) is within the range greater than -1 and less than 0, for example Fig.21 the case equal to -0.8 as shown, the force analysis result of the lens is better, the lens assembly is more stable, which is beneficial to the lens having better optical performance. When the value of the conditional formula (D0s - D0m) / (f1 - f6) exceeds the above range greater than -1 and less than 0, that is, within the range less than or equal to -1 or greater than or equal to 0, the force analysis result of the lens is relatively poor and the assembly stability is poor. For example Fig. 20 shows the case when the conditional formula is equal to -1.3, that is, within the range less than or equal to -1; in addition, when the value of the conditional formula is within the range greater than or equal to 0, it will cause problems that the lens is difficult to form. Therefore, while the optical imaging lens according to the embodiment of the present application satisfies the conditional formula -4 < d0s / tan(Semi - FOV) / f < -2 for d0s, Semi - FOV and f, by controlling D0s, D0m, f1 and f6 to satisfy -1 < (D0s - D0m) / (f1 - f6) < 0, the overall structure stability of the lens is ensured, the deformation during the assembly process is reduced, and the lateral dimension of the lens is reasonably controlled.

[0050] In an exemplary embodiment, the object side of the first lens may be convex, and the image side may be concave. The object side of the second lens may be convex, and the image side may be concave. The object side of the third lens may be convex, and the image side may be convex or concave. The object side of the fourth lens may be convex, and the image side may be convex. The object side of the fifth lens may be concave, and the image side may be concave. The object side of the sixth lens may be convex, and the image side may be convex or concave.

[0051] In an exemplary embodiment, the spacer group in the optical imaging lens may include a second spacer located between the second lens and the third lens, and its object side partially abuts against the image side of the second lens.

[0052] In an exemplary embodiment, the spacer group in the optical imaging lens may include a second auxiliary spacer on the image side of the second spacer, and its image side may partially abut against the object side of the third lens.

[0053] In an exemplary embodiment, the spacer group in the optical imaging lens may include a third spacer located between the third lens and the fourth lens, and its object side may partially abut against the image side of the third lens.

[0054] In an exemplary embodiment, the spacer group in the optical imaging lens may include a third auxiliary spacer located on the image side of the third spacer, and its image side surface may partially abut against the object side surface of the fourth lens.

[0055] In an exemplary embodiment, the spacer group in the optical imaging lens may include a fourth spacer located between the fourth lens and the fifth lens, and its object side surface partially abuts against the image side surface of the fourth lens.

[0056] In an exemplary embodiment, the spacer group in the optical imaging lens may include a fifth spacer located between the fifth lens and the sixth lens, and there may be a certain gap between its object side surface and the image side surface of the fifth lens.

[0057] In an exemplary embodiment, the spacer group in the optical imaging lens may further include an assembly spacer located between the fourth lens and the fifth spacer. Its object side surface may partially abut against the image side surface of the fourth lens, its image side surface may partially abut against the object side surface of the fifth spacer, and its peripheral surface may partially abut against the inner wall of the lens barrel. See the appendix Figure 8 , exemplarily, the peripheral surface of the assembly spacer PA is as Figure 8 the SPA1 surface indicated in

[0058] In an exemplary embodiment, the spacer group in the optical imaging lens may further include a fifth auxiliary spacer located on the image side of the fifth spacer, and its image side surface may partially abut against the object side surface of the sixth lens.

[0059] In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional formula 0.5 < d0s / DT12 - d0m / DT62 < 2, where d0s is the inner diameter of the object side end face of the lens barrel, DT12 is the diameter of the light-transmitting part of the image side surface of the first lens, d0m is the inner diameter of the image side end face of the lens barrel, and DT62 is the diameter of the light-transmitting part of the image side surface of the sixth lens. By controlling the lens to satisfy the conditional formula 0.5 < d0s / DT12 - d0m / DT62 < 2, the inner diameter of the object side end face of the lens barrel and the inner diameter of the image side end face of the lens barrel are reasonably restricted to ensure the stability of lens assembly. At the same time, by reasonably restricting the diameter of the light-transmitting part of the image side surface of the first lens and the diameter of the light-transmitting part of the image side surface of the sixth lens, the main optical path of the lens optical system can be restricted to ensure the imaging quality of the lens.

[0060] In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional formula 0.5 < L / D0s < 0.7, where L is the maximum height of the lens barrel along the optical axis direction, that is, the maximum distance on the optical axis from the object side end face of the lens barrel to the image side end face of the lens barrel, and D0s is the outer diameter of the object side end face of the lens barrel. By controlling the lens to satisfy the conditional formula 0.5 < L / D0s < 0.7, the shape of the lens barrel can be reasonably restricted, which is beneficial to the molding of the lens barrel.

[0061] In an exemplary embodiment, the spacer group includes a second spacer located between the second lens and the third lens, whose object side surface partially abuts against the image side surface of the second lens; and further includes a third spacer located between the third lens and the fourth lens, whose object side surface partially abuts against the image side surface of the third lens. The optical imaging lens of the present application can satisfy the conditional formula 0 < (D2s - D3s) / f3 < 0.5, where D2s is the outer diameter of the object side surface of the second spacer, D3s is the outer diameter of the object side surface of the third spacer, and f3 is the effective focal length of the third lens. By controlling the lens to satisfy the conditional formula 0 < (D2s - D3s) / f3 < 0.5 and reasonably limiting the difference between the outer diameters of the object side surfaces of the second spacer and the third spacer, it is beneficial to control the outer diameter difference between the second lens and the third lens and ensure the stability of the lens group assembly; at the same time, controlling the effective focal length of the third lens can reasonably control the lateral dimension of the lens (i.e., the dimension of the lens along the optical axis direction).

[0062] In an exemplary embodiment, the spacer group includes a third spacer located between the third lens and the fourth lens, whose object side surface partially abuts against the image side surface of the third lens; and further includes a third auxiliary spacer located on the image side of the third spacer, whose image side surface partially abuts against the object side surface of the fourth lens. The optical imaging lens of the present application can satisfy the conditional formula 0.8 < (D3bm - d3bm) / DT41 < 2, where D3bm is the outer diameter of the image side surface of the third auxiliary spacer, d3bm is the inner diameter of the image side surface of the third auxiliary spacer, and DT41 is the diameter of the light-transmitting part of the object side surface of the fourth lens. By controlling the lens to satisfy the conditional formula 0.8 < (D3bm - d3bm) / DT41 < 2 and reasonably controlling the outer diameter and inner diameter of the image side surface of the third auxiliary spacer, the step difference between the third lens and the fourth lens can be effectively controlled, avoiding the problem of poor assembly stability caused by an excessive step difference and improving the overall quality stability of the lens.

[0063] In an exemplary embodiment, the spacer group includes a second spacer located between the second lens and the third lens, whose object side surface partially abuts against the image side surface of the second lens. The optical imaging lens of the present application can satisfy the conditional formula -2 < EP02 / (f1 - f2) < 0, where EP02 is the distance on the optical axis from the object side end face of the lens barrel to the object side surface of the second spacer, f1 is the effective focal length of the first lens, and f2 is the effective focal length of the second lens. By controlling the lens to satisfy the conditional formula -2 < EP02 / (f1 - f2) < 0, the edge thickness of the second lens and the mating length of the assembly of the first lens and the lens barrel can be reasonably limited within a reasonable range, ensuring the formability of the second lens and the stability of the first lens; at the same time, controlling the focal lengths of the first lens and the second lens can play a role in limiting the axial dimension of the lens.

[0064] In an exemplary embodiment, the spacer group includes a second spacer located between the second lens and the third lens, the object side surface of which partially abuts against the image side surface of the second lens; and further includes a third spacer located between the third lens and the fourth lens, the object side surface of which partially abuts against the image side surface of the third lens. The optical imaging lens of the present application can satisfy the condition -1 < EP23 / (R5 + R6) < 0.1, where EP23 is the distance on the optical axis from the image side surface of the second spacer to the object side surface of the third spacer, R5 is the curvature radius of the object side surface of the third lens, and R6 is the curvature radius of the image side surface of the third lens. By controlling the lens to satisfy the condition -1 < EP23 / (R5 + R6) < 0.1, the edge thickness of the third lens can be restricted within a reasonable range, which is beneficial to the molding process of the third lens and ensures the molding accuracy; at the same time, restricting the curvature radius of the object side surface and the curvature radius of the image side surface of the third lens can ensure the deflection angle of the light passing through the third lens and ensure the light transmission path.

[0065] In an exemplary embodiment, the spacer group includes a second spacer located between the second lens and the third lens, the object side surface of which partially abuts against the image side surface of the second lens; and further includes a third spacer located between the third lens and the fourth lens, the object side surface of which partially abuts against the image side surface of the third lens. The optical imaging lens of the present application can satisfy the condition 0.5 < EP02 / CT2 - EP23 / CT3 < 3, where EP02 is the distance on the optical axis from the object side end face of the lens barrel to the object side surface of the second spacer, CT2 is the central thickness of the second lens on the optical axis, EP23 is the distance on the optical axis from the image side surface of the second spacer to the object side surface of the third spacer, and CT3 is the central thickness of the third lens on the optical axis. By controlling the lens to satisfy the condition 0.5 < EP02 / CT2 - EP23 / CT3 < 3, the mating length of the first lens and the lens barrel and the edge thicknesses of the second lens and the third lens can be reasonably restricted. At the same time, restricting the central thicknesses of the second lens and the third lens can be beneficial to the molding process of the second lens and the third lens, ensure that the thickness ratio of the second lens and the third lens is within a reasonable range, and prevent the risk of welding marks on the lens.

[0066] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula 15 < (R10 + R11) / T56 < 40, where R10 is the radius of curvature of the image side of the fifth lens, R11 is the radius of curvature of the object side of the sixth lens, and T56 is the distance on the optical axis from the image side of the fifth lens to the object side of the sixth lens. When the optical imaging lens satisfies the above conditional formula 15 < (R10 + R11) / T56 < 40, there may also be a fifth spacer between the fifth lens and the sixth lens, and there is a certain gap between the object side of the fifth spacer and the image side of the fifth lens. By controlling the lens to satisfy the conditional formula 15 < (R10 + R11) / T56 < 40, reasonably restricting the radius of curvature of the image side of the fifth lens and the radius of curvature of the object side of the sixth lens can ensure the correct transmission of the optical path. At the same time, controlling the distance on the optical axis from the image side of the fifth lens to the object side of the sixth lens can form a space for stray light improvement, which is beneficial to the improvement of the overall stray light quality of the lens.

[0067] In an exemplary embodiment, the spacer group includes a fifth spacer located between the fifth lens and the sixth lens, and also includes an assembled spacer located between the fourth lens and the fifth spacer. The object side of the assembled spacer can partially abut against the image side of the fourth lens, the image side of the assembled spacer can partially abut against the object side of the fifth spacer, and the outer peripheral surface of the assembled spacer can partially abut against the inner wall of the lens barrel. In an exemplary embodiment, the fourth lens and the fifth lens can be glued in the light-transmitting part / optical effective diameter part through a gluing process, while the non-light-transmitting part / non-optical effective diameter part of the two is not glued. By arranging the assembled spacer to abut against the fourth lens and the fifth spacer, it is beneficial to ensure the stability of the lens assembly.

[0068] In an exemplary embodiment, the spacer group includes a fifth spacer located between the fifth lens and the sixth lens, and there is a certain gap between the object side of the fifth spacer and the image side of the fifth lens; the optical imaging lens of the present application can satisfy the conditional formula 4 < d5m / (SAG52 + SAG61) < 6, where d5m is the inner diameter of the image side of the fifth spacer, SAG52 is the axial distance from the intersection of the image side of the fifth lens and the optical axis to the vertex of the effective radius of the image side of the fifth lens, and SAG61 is the axial distance from the intersection of the object side of the sixth lens and the optical axis to the vertex of the effective radius of the object side of the sixth lens. By controlling the lens to satisfy the conditional formula 4 < d5m / (SAG52 + SAG61) < 6, it is beneficial to control the excess light between the fifth lens and the sixth lens, thereby improving the stray light quality of the lens.

[0069] In an exemplary embodiment, the spacer group includes a fifth spacer located between the fifth lens and the sixth lens, and also includes an assembled spacer located between the fourth lens and the fifth spacer; the optical imaging lens of the present application can satisfy the conditional formula 0.4<(dAm-d5s) / (D5m-DT61)<0.8, wherein dAm is the inner diameter of the image side surface of the assembled spacer, d5s is the inner diameter of the object side surface of the fifth spacer, D5m is the outer diameter of the image side surface of the fifth spacer, and DT61 is the diameter of the light-transmitting portion of the object side surface of the sixth lens. By controlling the lens to satisfy the conditional formula 0.4<(dAm-d5s) / (D5m-DT61)<0.8, the position of the bearing point of the assembled spacer, the fifth spacer and the sixth lens when assembled can be effectively controlled, and the moment when the assembled spacer is under pressure can be reduced, so that the stability of the rear end lens of the rear group and the spacer assembly can be improved.

[0070] In an exemplary embodiment, the optical imaging lens further includes an auxiliary lens barrel, which may be located at the object side end of the lens barrel, and the inner annular surface of the auxiliary lens barrel may be closely fitted with the outer peripheral surface of the near object side end of the lens barrel, and the two may be used in conjunction with each other, see the attached Figure 3 , wherein the inner annular surface of the auxiliary lens barrel P0b can be as follows Figure 3 The SP0b1 surface indicated in the figure, the outer peripheral surface of the lens barrel P0 can be as shown Figure 3 The portion of the inner annular surface SP0b1 of the auxiliary barrel P0b, for example, near the image side end of the auxiliary barrel P0b and the portion of the outer peripheral surface SP02 of the barrel P0 near the object side end of the barrel P0 cooperate with each other.

[0071] In an exemplary embodiment, the inner edge surface of the object-side end of the auxiliary lens barrel may be in contact with the edge portion of the first lens, and may be used to limit the displacement of the first lens (eg, a glass lens). Figure 3 The inner edge surface of the object side end of the auxiliary lens barrel P0b can be as follows Figure 3 The SP0b2 surface indicated in the figure, the edge portion of the first lens may include, for example, the edge of the object side surface of the first lens and / or a partial area of ​​the peripheral surface of the first lens adjacent to the edge of the object side surface of the first lens. The setting of the auxiliary lens barrel can also prevent large-angle light from entering the side surface of the first lens and the edge area of ​​the first lens, thereby reducing the generation of stray light and improving the imaging quality.

[0072] In an exemplary embodiment, in a cross-sectional view of the auxiliary lens barrel in any plane passing through the optical axis or the center line of the auxiliary lens barrel, the angle between the line segment corresponding to the inner annular surface of the auxiliary lens barrel and the line segment corresponding to the inner inclined surface of the auxiliary lens barrel adjacent to the inner annular surface may be an obtuse angle, and the angle may be as follows: Figure 4 As shown by the angle α in Figure 4 The line segment indicated by SP0b1 in the figure may be the line segment corresponding to the inner annular surface of the auxiliary lens barrel P0b in the cross-sectional view. Figure 4 The line segment indicated by SP0b3 in the figure may be the line segment corresponding to the inner inclination surface of the auxiliary lens barrel P0b adjacent to its inner annular surface SP0b1 in the cross-sectional view, and the angle α between the two line segments corresponding to the inner annular surface SP0b1 and the inner inclination surface SP0b3 may be an obtuse angle. Figure 4 The angle α) in the image is an obtuse angle, which can avoid the effective light of the optical system and avoid blocking the effective light of the system, while improving the overall appearance of the lens barrel.

[0073] In an exemplary embodiment, the optical imaging lens of the present application may include at least one aperture. The aperture may constrain the light path and control the light intensity. The aperture may be set at an appropriate position of the optical imaging lens, for example, the aperture may be set between the third lens and the fourth lens.

[0074] In an exemplary embodiment, optionally, the optical imaging lens may further include a filter for correcting color deviation and / or a protective glass for protecting a photosensitive element located on the imaging surface.

[0075] In an exemplary embodiment, the object side surface and the image side surface of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens may have one or more aspherical mirror surfaces, and the aspherical mirror surfaces have better curvature radius characteristics, and have the advantages of improving distortion aberration and improving astigmatism aberration. The use of aspherical mirror surfaces can eliminate aberrations that occur during imaging as much as possible, thereby improving imaging quality.

[0076] On the one hand, an optical imaging lens according to an embodiment of the present application includes a lens barrel, a lens group, and an isolation member group. The lens group and the isolation member group are at least partially accommodated in the lens barrel. The lens group includes first to sixth lenses arranged in sequence from the object side to the image side along the optical axis. Among them, the first lens has a negative optical power, the second lens has a negative optical power, the third lens has a positive optical power, the fourth lens has a positive optical power, the fifth lens has a negative optical power, and the sixth lens has a positive optical power; the inner wall of the near-object side end of the lens barrel and the outer peripheral surface of the first lens partially abut against each other; the non-light-transmitting part of the image side surface of the first lens and the non-light-transmitting part of the object side surface of the second lens partially abut against each other. The inner diameter d0s of the object side end face of the lens barrel, half of the maximum field of view angle Semi-FOV of the optical imaging lens, and the effective focal length f of the optical imaging lens satisfy the conditional formula -4 < d0s / tan(Semi-FOV) / f < -2. The outer diameter D0s of the object side end face of the lens barrel, the outer diameter D0m of the image side end face of the lens barrel, the effective focal length f1 of the first lens, and the effective focal length f6 of the sixth lens satisfy the conditional formula -1 < (D0s - D0m) / (f1 - f6) < 0. If the value of the conditional formula (D0s - D0m) / (f1 - f6) is higher than the upper limit, for example, greater than 0, it will cause the tail lens structure area to be too long, and there will be problems with lens demolding and difficulty in molding; if it is lower than the lower limit, for example, less than -1, it will cause large lens segment differences and unstable assembly. While achieving ultra-large field of view imaging, improving lens resolution, and improving imaging quality, the optical imaging lens according to an embodiment of the present application controls D0s, D0m, f1, and f6 to satisfy the conditional formula -1 < (D0s - D0m) / (f1 - f6) < 0, controls the aperture difference between the large end and the small end of the lens within a reasonable range, ensures the overall stability of the lens structure, reduces deformation during the assembly process; and at the same time controls the lateral dimension of the lens within a reasonable range.

[0077] On the other hand, the optical imaging lens according to an embodiment of the present application includes a lens barrel, a lens group, and a spacer group. The lens group and the spacer group are at least partially accommodated in the lens barrel. The lens group includes first to sixth lenses arranged in order from the object side to the image side along the optical axis. Among them, the first lens has a negative optical power, the second lens has a negative optical power, the third lens has a positive optical power, the fourth lens has a positive optical power, the fifth lens has a negative optical power, and the sixth lens has a positive optical power. The inner wall of the near-object-side end of the lens barrel and the outer peripheral surface of the first lens partially abut against each other. The non-transmissive part of the image side surface of the first lens and the non-transmissive part of the object side surface of the second lens partially abut against each other. The spacer group includes a second spacer located between the second lens and the third lens, and its object side surface partially abuts against the image side surface of the second lens. By such an arrangement of the lens and controlling the distance EP02 on the optical axis from the object side end face of the lens barrel to the object side surface of the second spacer to satisfy the conditional formula -2 < EP02 / (f1 - f2) < 0 with the effective focal length f1 of the first lens and the effective focal length f2 of the second lens, the edge thickness of the second lens and the fitting length of the assembly of the first lens and the lens barrel can be reasonably limited within a reasonable range, which can ensure the formability of the second lens and the stability of the first lens. At the same time, controlling the focal lengths of the first lens and the second lens can play a role in limiting the axial dimension of the lens.

[0078] On the other hand, the optical imaging lens according to an embodiment of the present application includes a lens barrel, a lens group, and a spacer group. The lens group and the spacer group are at least partially accommodated in the lens barrel. The lens group includes first to sixth lenses arranged in order from the object side to the image side along the optical axis. Among them, the first lens has a negative optical power, the second lens has a negative optical power, the third lens has a positive optical power, the fourth lens has a positive optical power, the fifth lens has a negative optical power, and the sixth lens has a positive optical power. The inner wall of the near-object-side end of the lens barrel and the outer peripheral surface of the first lens partially abut against each other. The non-transmissive part of the image side surface of the first lens and the non-transmissive part of the object side surface of the second lens partially abut against each other. The spacer group includes a fifth spacer located between the fifth lens and the sixth lens, and there may be a certain gap between its object side surface and the image side surface of the fifth lens. It also includes an assembled spacer located between the fourth lens and the fifth spacer. Its object side surface may partially abut against the image side surface of the fourth lens, its image side surface may partially abut against the object side surface of the fifth spacer, and its outer edge surface may partially abut against the inner wall of the lens barrel. By such an arrangement of the lens and controlling the inner diameter dAm of the image side surface of the assembled spacer, the inner diameter d5s of the object side surface of the fifth spacer, the outer diameter D5m of the image side surface of the fifth spacer, and the diameter DT61 of the transmissive part of the object side surface of the sixth lens to satisfy the conditional formula 0.4 < (dAm - d5s) / (D5m - DT61) < 0.8, the position of the abutting force point during the assembly of the assembled spacer, the fifth spacer, and the sixth lens can be effectively controlled, the torque during the assembly under pressure can be reduced, and the stability improvement of the rear group rear lens and the spacer assembly can be achieved.

[0079] On the other hand, an optical imaging lens according to an embodiment of the present application includes a lens barrel, a lens group, and a spacer group. The lens group and the spacer group are at least partially accommodated in the lens barrel. The lens group includes first to sixth lenses arranged in sequence from the object side to the image side along the optical axis. Among them, the first lens has a negative focal power, the second lens has a negative focal power, the third lens has a positive focal power, the fourth lens has a positive focal power, the fifth lens has a negative focal power, and the sixth lens has a positive focal power; the inner wall of the near-object side end of the lens barrel and the outer peripheral surface of the first lens partially abut against each other; the non-transmissive part of the image side surface of the first lens and the non-transmissive part of the object side surface of the second lens partially abut against each other; the spacer group includes a second spacer located between the second lens and the third lens, whose object side surface partially abuts against the image side surface of the second lens, and further includes a third spacer located between the third lens and the fourth lens, whose object side surface partially abuts against the image side surface of the third lens; by such an arrangement of the lens and controlling the distance EP23 on the optical axis from the image side surface of the second spacer to the object side surface of the third spacer, the curvature radius R5 of the object side surface of the third lens, and the curvature radius R6 of the image side surface of the third lens to satisfy the conditional formula -1 < EP23 / (R5 + R6) < 0.1, the edge thickness of the third lens can be limited within a reasonable range, which is beneficial to the molding process of the third lens and ensures the molding accuracy; at the same time, restricting the curvature radius of the object side surface and the curvature radius of the image side surface of the third lens can ensure the deflection angle of the light passing through the third lens and ensure the light transmission path.

[0080] However, those skilled in the art should understand that without departing from the technical solutions claimed in the present application, the number of lenses constituting the optical imaging lens can be changed, and the number of spacers can also be changed to obtain the various results and advantages described in this specification. The present application does not make specific limitations in this regard. For example, although six lenses are described as an example in the embodiment, the optical imaging lens is not limited to including six lenses. If necessary, the optical imaging lens may further include other numbers of lenses. Also, for example, according to needs, the optical imaging lens may also include other numbers of spacers different from those described in the above embodiment.

[0081] The following further describes specific embodiments of the optical imaging lens applicable to the above embodiment with reference to the drawings.

[0082] Example 1

[0083] The following refers to Figure 2 Describe the optical imaging lens according to Embodiment 1 of the present application.

[0084] As Figure 2As shown, in this embodiment, the optical imaging lens comprises a lens barrel P0, an auxiliary lens barrel P0b, and a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5 and a sixth lens E6 which are arranged in sequence from the object side to the image side along the optical axis.

[0085] In this embodiment, the optical imaging lens further includes a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object side surface partially abutting against the image side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object side surface partially abutting against the image side surface of the third lens E3; and a third auxiliary spacer P3b, located on the image side of the third spacer P3, with its image side surface partially abutting against the object side surface of the fourth lens E4.

[0086] In this embodiment, the first lens E1 has negative power, its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative power, its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive power, its object side surface S5 is convex, and its image side surface S6 is convex. The fourth lens E4 has positive power, its object side surface S7 is convex, and its image side surface S8 is convex. The fifth lens E5 has negative power, its object side surface S9 is concave, and its image side surface S10 is concave. The sixth lens E6 has positive power, its object side surface S11 is convex, and its image side surface S12 is convex.

[0087] Table 1 shows basic parameters of the optical imaging lens of Example 1, wherein the units of the curvature radius, thickness / distance and effective radius are all millimeters (mm).

[0088]

[0089] Table 1

[0090] In this embodiment, the object side surface and the image side surface of any lens from the second lens E2 to the sixth lens E6 are both aspherical surfaces, and the surface shape x of each aspherical lens can be defined by but not limited to the following aspherical surface formula:

[0091]

[0092] Wherein, x is the distance vector height from the vertex of the aspheric surface when the aspheric surface is at a height of h along the optical axis; c is the paraxial curvature of the aspheric surface, c=1 / R (i.e., the paraxial curvature c is the reciprocal of the curvature radius R in Table 1 above); k is the cone coefficient; Ai is the correction coefficient of the i-th order of the aspheric surface. The following Tables 2-1 and 2-2 give the high-order coefficients A4, A6, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28, A29, A30, A31, A32, A33, A34, A35, A36, A37, A38, A39, A40, A41, A42, A43, A44, A45, A46, A47, A48, A49, A50, A51, A52, A53, A54, A55, A56, A57, A58, A59, A60, A61, A71, A72, A73, A74, A75 10 , A 12 , A14 , A 16 , A 18 , A 20 , A 22 , A 24 , A 26 , A 28 and A 30 .

[0093]

[0094]

[0095] Table 2-1

[0096] Face number A18 A20 A22 A24 A26 A28 A30 S3 1.2356E-02 -5.0985E-03 8.6527E-04 -5.6548E-05 0.0000E+00 0.0000E+00 0.0000E+00 S4 1.6324E+01 -4.6704E+01 3.1251E+01 -7.4396E+00 0.0000E+00 0.0000E+00 0.0000E+00 S5 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 1.0307E+04 -1.0065E+04 5.6255E+03 -1.3715E+03 0.0000E+00 0.0000E+00 0.0000E+00 S8 -2.6577E+05 3.8541E+05 -3.8583E+05 2.5170E+05 -9.6204E+04 1.7178E+04 -7.2280E+02 S9 -6.3145E+05 1.0814E+06 -1.3054E+06 1.0504E+06 -5.0499E+05 1.0961E+05 0.0000E+00 S10 -4.9642E+05 9.2006E+05 -1.1923E+06 1.0209E+06 -5.1747E+05 1.1734E+05 0.0000E+00 S11 2.8633E+05 -7.0277E+05 1.1120E+06 -1.1100E+06 6.3775E+05 -1.6108E+05 0.0000E+00 S12 -1.2244E+05 1.8621E+05 -1.9407E+05 1.3181E+05 -5.2500E+04 9.2973E+03 0.0000E+00

[0097] Table 2-2

[0098] Example 2

[0099] The following reference Figure 3 An optical imaging lens according to Embodiment 2 of the present application is described.

[0100] like Figure 3 As shown, in this embodiment, the optical imaging lens comprises a lens barrel P0, an auxiliary lens barrel P0b, and a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6 which are arranged in sequence from the object side to the image side along the optical axis. The optical imaging lens further comprises a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object side surface partially abutting against the image side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object side surface partially abutting against the image side surface of the third lens E3; and a third auxiliary spacer P3b, located on the image side of the third spacer P3, with its image side surface partially abutting against the object side surface of the fourth lens E4.

[0101] The structure of the optical imaging lens of this embodiment is the same as that of the optical imaging lens of Embodiment 1, that is, the basic parameter table of the optical imaging lens of this embodiment is the same as Table 1, and the high-order coefficient table of the aspherical mirror surface is the same as Table 2-1 and Table 2-2.

[0102] The difference between this embodiment and embodiment 1 is that the size values ​​of some relevant structural parameters of the spacer and the lens barrel are different. The values ​​of the relevant structural parameters in this embodiment and embodiment 1 are shown in Table 7 below, and the multiple parameters specifically include:

[0103] The outer diameter D2s of the object side surface of the second spacer P2, the outer diameter D3s of the object side surface of the third spacer P3, the inner diameter d3bm of the image side surface of the third auxiliary spacer P3b, the outer diameter D3bm of the image side surface of the third auxiliary spacer P3b, the inner diameter d0s of the object side end surface of the lens barrel P0, the inner diameter d0m of the image side end surface of the lens barrel P0, the outer diameter D0s of the object side end surface of the lens barrel P0, the outer diameter D0m of the image side end surface of the lens barrel P0, the distance EP02 from the object side end surface of the lens barrel P0 to the object side surface of the second spacer P2 on the optical axis, the distance EP23 from the image side surface of the second spacer P2 to the object side surface of the third spacer P3 on the optical axis, and the maximum height L of the lens barrel P0 along the optical axis. The units of the numerical values ​​of the parameters shown in Table 7 are all millimeters (mm), and the schematic diagram of the parameters in the structural diagram of the optical imaging lens is as follows Figure 1 shown.

[0104] Example 3

[0105] The following reference Figure 4 Describe the optical lens according to Example 3 of the present application.

[0106] like Figure 4 As shown, in this embodiment, the optical imaging lens comprises a lens barrel P0, an auxiliary lens barrel P0b, and a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6 which are arranged in sequence from the object side to the image side along the optical axis. The optical imaging lens further comprises a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object side surface partially abutting against the image side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object side surface partially abutting against the image side surface of the third lens E3; a third auxiliary spacer P3b, located on the image side of the third spacer P3, with its image side surface partially abutting against the object side surface of the fourth lens E4; and a fourth spacer P4, located between the fourth lens E4 and the fifth lens E5, with its object side surface partially abutting against the image side surface of the fourth lens E4.

[0107] The structure of the optical imaging lens of this embodiment is also the same as that of the optical imaging lens of Embodiment 1, that is, the basic parameter table of the optical imaging lens of this embodiment is the same as Table 1, and the high-order coefficient table of the aspherical mirror surface is the same as Table 2-1 and Table 2-2.

[0108] The difference between this embodiment and embodiment 1 is that the size values ​​of some relevant structural parameters of the spacer and the lens barrel are different. The values ​​of the relevant structural parameters of this embodiment are also shown in Table 7 below. The specific description of multiple parameters is the same as the relevant description in the above embodiment 2, and will not be repeated here.

[0109] Figure 5The axial chromatic aberration curves of the optical imaging lenses of Example 1, Example 2 and Example 3 are shown, which indicate the deviation of the convergent focus of light rays of different wavelengths passing through the back of the lens. Figure 6 Astigmatism curves of the optical imaging lenses of Example 1, Example 2 and Example 3 are shown, which represent the meridional image curvature and the sagittal image curvature. Figure 7 The distortion curves of the optical imaging lenses of Example 1, Example 2 and Example 3 are shown, which represent the distortion values ​​corresponding to different field angles. Figures 5 to 7 It can be seen that the optical imaging lenses provided in Example 1, Example 2 and Example 3 can achieve good imaging quality.

[0110] Example 4

[0111] The following reference Figure 8 An optical imaging lens according to Embodiment 4 of the present application is described.

[0112] like Figure 8 As shown, in this embodiment, the optical imaging lens comprises a lens barrel P0, an auxiliary lens barrel P0b, and a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5 and a sixth lens E6 which are arranged in sequence from the object side to the image side along the optical axis.

[0113] In this embodiment, the optical imaging lens further comprises a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object side surface partially abutting against the image side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object side surface partially abutting against the image side surface of the third lens E3; a third auxiliary spacer P3b, located on the image side of the third spacer P3, with its image side surface partially abutting against the object side surface of the fourth lens E4; a fifth spacer P5, located between the fifth lens E5 and the sixth lens E6, with a gap between its object side surface and the image side surface of the fifth lens E5; and an assembly spacer PA, located between the fourth lens E4 and the fifth spacer P5, with its object side surface partially abutting against the image side surface of the fourth lens E4, its image side surface partially abutting against the object side surface of the fifth spacer P5, and its outer edge surface partially abutting against the inner wall of the lens barrel P0.

[0114] In this embodiment, the first lens E1 has negative power, its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative power, its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive power, its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive power, its object side surface S7 is convex, and its image side surface S8 is convex. The fifth lens E5 has negative power, its object side surface S9 is concave, and its image side surface S10 is concave. The sixth lens E6 has positive power, its object side surface S11 is convex, and its image side surface S12 is convex.

[0115] Table 3 shows basic parameters of the optical imaging lens of Example 4, wherein the units of the curvature radius, thickness / distance and effective radius are all millimeters (mm).

[0116]

[0117]

[0118] Table 3

[0119] In this embodiment, the object side surface and the image side surface of any lens of the second lens E2 to the sixth lens E6 are both aspherical surfaces, and the surface shape of each aspherical surface can be defined by the formula (1) given in the above embodiment 1. Tables 4-1 and 4-2 show the high-order coefficients A4, A6, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28, A29, A30, A31, A32, A33, A34, A35, A36, A37, A38, A39, A40, A41, A42, A43, A44, A45, A46, A47, A48, A49, A50 10 , A 12 , A 14 , A 16 , A 18 , A 20 , A 22 , A 24 , A 26 , A 28 and A 30 .

[0120] Face number A4 A6 A8 A10 A12 A14 A16 S3 1.2646E-03 -9.6921E-02 3.1209E-01 -5.2480E-01 5.6472E-01 -4.1575E-01 2.1376E-01 S4 1.2345E-01 -7.5464E-01 2.0512E+00 2.0085E+00 -2.4204E+01 6.3288E+01 -8.6233E+01 S5 -1.0085E-01 5.0825E-01 -3.8305E+00 1.6067E+01 -4.1362E+01 6.4875E+01 -5.8257E+01 S6 -4.5226E-01 -2.0479E-02 1.1762E+01 -1.0406E+02 5.2439E+02 -1.7288E+03 3.8759E+03 S7 -7.6355E-01 1.2492E+01 -2.3314E+02 2.8198E+03 -2.2475E+04 1.2247E+05 -4.6682E+05 S8 -1.2375E+00 2.1979E+01 -1.4861E+02 -2.1864E+02 1.4894E+04 -1.5296E+05 8.9061E+05 S9 -1.2375E+00 2.1979E+01 -1.4861E+02 -2.1864E+02 1.4894E+04 -1.5296E+05 8.9061E+05 S10 -7.8600E-01 4.6659E+00 -2.6128E+00 -2.6537E+02 3.0414E+03 -1.9344E+04 8.1562E+04 S11 -1.0009E+00 6.6110E+00 -5.3389E+01 3.6465E+02 -1.8446E+03 6.7756E+03 -1.8158E+04 S12 2.7483E-02 -3.0646E+00 4.4914E+01 -3.7814E+02 2.1095E+03 -8.1887E+03 2.2762E+04

[0121] Table 4-1

[0122] Face number A18 A20 A22 A24 A26 A28 A30 S3 -7.6603E-02 1.8724E-02 -2.9712E-03 2.7555E-04 -1.1325E-05 0.0000E+00 0.0000E+00 S4 6.6355E+01 -2.7376E+01 4.7147E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S5 2.2666E+01 3.4013E+00 -4.2575E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 -5.9567E+03 6.1835E+03 -4.1469E+03 1.6227E+03 -2.8156E+02 0.0000E+00 0.0000E+00 S7 1.2557E+06 -2.3716E+06 3.0760E+06 -2.6079E+06 1.3011E+06 -2.8958E+05 0.0000E+00 S8 -3.4034E+06 8.9253E+06 -1.6207E+07 2.0053E+07 -1.6145E+07 7.6263E+06 -1.6034E+06 S9 -3.4034E+06 8.9253E+06 -1.6207E+07 2.0053E+07 -1.6145E+07 7.6263E+06 -1.6034E+06 S10 -2.3984E+05 4.9964E+05 -7.3450E+05 7.4454E+05 -4.9454E+05 1.9339E+05 -3.3671E+04 S11 3.5636E+04 -5.1055E+04 5.2691E+04 -3.8086E+04 1.8273E+04 -5.2225E+03 6.7240E+02 S12 -4.5995E+04 6.7777E+04 -7.2156E+04 5.4104E+04 -2.7132E+04 8.1769E+03 -1.1211E+03

[0123] Table 4-2

[0124] Example 5

[0125] The following reference Fig. 9 An optical imaging lens according to Embodiment 5 of the present application is described.

[0126] like Fig. 9As shown, in this embodiment, the optical imaging lens comprises a lens barrel P0, an auxiliary lens barrel P0b, and a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5 and a sixth lens E6 which are arranged in sequence from the object side to the image side along the optical axis. The optical imaging lens also includes a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object side surface partially abutting against the image side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object side surface partially abutting against the image side surface of the third lens E3; a third auxiliary spacer P3b, located on the image side of the third spacer P3, with its image side surface partially abutting against the object side surface of the fourth lens E4; a fifth spacer P5, located between the fifth lens E5 and the sixth lens E6, with a gap between its object side surface and the image side surface of the fifth lens E5; and an assembly spacer PA, located between the fourth lens E4 and the fifth spacer P5, with its object side surface partially abutting against the image side surface of the fourth lens E4, its image side surface partially abutting against the object side surface of the fifth spacer P5, and its outer edge surface partially abutting against the inner wall of the lens barrel P0.

[0127] The structure of the optical imaging lens of this embodiment is the same as that of the optical imaging lens of Embodiment 4, that is, the basic parameter table of the optical imaging lens of this embodiment is the same as Table 3, and the high-order coefficient table of the aspherical mirror surface is the same as Table 4-1 and Table 4-2.

[0128] The difference between this embodiment and embodiment 4 is that the dimension values ​​of some relevant structural parameters of the spacer and the lens barrel are different. The values ​​of the relevant structural parameters in this embodiment and embodiment 4 are shown in Table 7 below. In addition to the parameters described in embodiment 2 above, the multiple parameters also include the following parameters:

[0129] The inner diameter d5s of the object side surface of the fifth spacer P5, the inner diameter d5m of the image side surface of the fifth spacer P5, the outer diameter D5m of the image side surface of the fifth spacer P5, and the inner diameter dAm of the image side surface of the assembly spacer PA. The units of the values ​​of the parameters shown in Table 7 are also millimeters (mm), and the schematic diagram of the parameters in the structural diagram of the optical imaging lens is as follows: Figure 1 shown.

[0130] Example 6

[0131] The following reference Fig.10 Describe the optical lens according to Example 6 of the present application.

[0132] like Fig.10As shown, in this embodiment, the optical imaging lens comprises a lens barrel P0, an auxiliary lens barrel P0b, and a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6 which are arranged in sequence from the object side to the image side along the optical axis. The optical imaging lens further comprises a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object side surface partially abutting against the image side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object side surface partially abutting against the image side surface of the third lens E3; a fifth spacer P5, located between the fifth lens E5 and the sixth lens E6, with a gap between its object side surface and the image side surface of the fifth lens E5; and an assembly spacer PA, located between the fourth lens E4 and the fifth spacer P5, with its object side surface partially abutting against the image side surface of the fourth lens E4, its image side surface partially abutting against the object side surface of the fifth spacer P5, and its outer edge surface partially abutting against the inner wall of the lens barrel P0.

[0133] The structure of the optical imaging lens of this embodiment is also the same as that of the optical imaging lens of Embodiment 4, that is, the basic parameter table of the optical imaging lens of this embodiment is the same as Table 3, and the high-order coefficient table of the aspherical mirror surface is the same as Table 4-1 and Table 4-2.

[0134] The difference between this embodiment and embodiment 4 is that the size values ​​of some relevant structural parameters of the spacer and the lens barrel are different. The values ​​of the various relevant structural parameters of this embodiment are also shown in Table 7 below, and the specific descriptions of the multiple parameters are also the same as the relevant descriptions in the above embodiments 2 and 5, and will not be repeated here.

[0135] Fig.11 The axial chromatic aberration curves of the optical imaging lenses of Examples 4, 5 and 6 are shown, which indicate the deviation of the convergent focus of light rays of different wavelengths passing through the lens. Fig.12 Astigmatism curves of the optical imaging lenses of Examples 4, 5 and 6 are shown, which represent meridional image curvature and sagittal image curvature. Fig.13 The distortion curves of the optical imaging lenses of Example 4, Example 5 and Example 6 are shown, which represent the distortion values ​​corresponding to different field angles. Figures 11 to 13 It can be seen that the optical imaging lenses provided in Examples 4, 5 and 6 can achieve good imaging quality.

[0136] Example 7

[0137] The following reference Fig.14 An optical imaging lens according to Embodiment 7 of the present application is described.

[0138] like Fig.14As shown, in this embodiment, the optical imaging lens comprises a lens barrel P0, an auxiliary lens barrel P0b, and a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5 and a sixth lens E6 which are arranged in sequence from the object side to the image side along the optical axis.

[0139] In this embodiment, the optical imaging lens further comprises a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object side surface partially abutting against the image side surface of the second lens E2; a second auxiliary spacer P2b, located on the image side of the second spacer P2, with its image side surface partially abutting against the object side surface of the third lens E3; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object side surface partially abutting against the image side surface of the third lens E3; a third auxiliary spacer P3b, located on the image side of the third spacer P3, with its image side surface partially abutting against the object side surface of the fourth lens E4; a fifth spacer P5, located between the fifth lens E5 and the sixth lens E6, with a gap between its object side surface and the image side surface of the fifth lens E5; and an assembly spacer PA, located between the fourth lens E4 and the fifth spacer P5, with its object side surface partially abutting against the image side surface of the fourth lens E4, its image side surface partially abutting against the object side surface of the fifth spacer P5, and its outer edge surface partially abutting against the inner wall of the lens barrel P0.

[0140] In this embodiment, the first lens E1 has negative power, its object side surface S1 is convex, and its image side surface S2 is concave. The second lens E2 has negative power, its object side surface S3 is convex, and its image side surface S4 is concave. The third lens E3 has positive power, its object side surface S5 is convex, and its image side surface S6 is concave. The fourth lens E4 has positive power, its object side surface S7 is convex, and its image side surface S8 is convex. The fifth lens E5 has negative power, its object side surface S9 is concave, and its image side surface S10 is concave. The sixth lens E6 has positive power, its object side surface S11 is convex, and its image side surface S12 is concave.

[0141] Table 5 shows basic parameters of the optical imaging lens of Example 7, wherein the units of the curvature radius, thickness / distance and effective radius are all millimeters (mm).

[0142]

[0143] Table 5

[0144] In this embodiment, the object side surface and the image side surface of any lens of the second lens E2 to the sixth lens E6 are both aspherical surfaces, and the surface shape of each aspherical surface can be defined by the formula (1) given in the above embodiment 1. Tables 6-1 and 6-2 show the high-order coefficients A4, A6, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28, A29, A30, A31, A32, A33, A34, A35, A36, A37, A38, A39, A40, A41, A42, A43, A44, A45, A46, A47, A48, A49, A50 10 , A 12, A 14 , A 16 , A 18 , A 20 , A 22 , A 24 , A 26 , A 28 and A 30 .

[0145] Face number A4 A6 A8 A10 A12 A14 A16 S3 4.7039E-02 -4.5142E-02 5.4461E-02 -5.4249E-02 2.5852E-02 -3.8287E-03 -1.5944E-03 S4 2.2455E-01 -9.1415E-01 4.3903E+00 -1.3665E+01 2.9299E+01 -4.4131E+01 4.4781E+01 S5 -5.0575E-02 2.5695E-01 -1.2972E+00 4.7136E+00 -1.1480E+01 1.8461E+01 -1.9397E+01 S6 -2.3708E-01 2.5918E-01 2.0390E-01 -2.5124E+00 7.7930E+00 -1.3997E+01 1.5602E+01 S7 -3.7516E-01 4.5297E+00 -6.2237E+01 5.4233E+02 -3.1009E+03 1.2104E+04 -3.3028E+04 S8 -3.7907E+00 5.7323E+01 -5.7423E+02 4.2689E+03 -2.3147E+04 9.0790E+04 -2.5767E+05 S9 -3.7907E+00 5.7323E+01 -5.7423E+02 4.2689E+03 -2.3147E+04 9.0790E+04 -2.5767E+05 S10 -1.5908E+00 1.3349E+01 -7.2793E+01 2.3234E+02 -4.9502E+01 -3.5576E+03 1.9376E+04 S11 -1.0908E+00 8.4374E+00 -6.0525E+01 3.7244E+02 -1.7863E+03 6.4247E+03 -1.7176E+04 S12 1.4752E-01 -4.0000E+00 4.8150E+01 -3.6130E+02 1.8434E+03 -6.6813E+03 1.7636E+04

[0146] Table 6-1

[0147] Face number A18 A20 A22 A24 A26 A28 A30 S3 8.3261E-04 -1.4495E-04 9.1632E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S4 -2.8776E+01 1.0497E+01 -1.6505E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S5 1.2730E+01 -4.6999E+00 7.3241E-01 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 -1.0627E+01 4.0409E+00 -6.5620E-01 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 6.3587E+04 -8.5955E+04 7.9788E+04 -4.8408E+04 1.7279E+04 -2.7506E+03 0.0000E+00 S8 5.2889E+05 -7.7994E+05 8.1217E+05 -5.7724E+05 2.6280E+05 -6.7537E+04 7.1314E+03 S9 5.2889E+05 -7.7994E+05 8.1217E+05 -5.7724E+05 2.6280E+05 -6.7537E+04 7.1314E+03 S10 -5.8042E+04 1.1385E+05 -1.5212E+05 1.3768E+05 -8.0941E+04 2.7926E+04 -4.2945E+03 S11 3.4038E+04 -4.9693E+04 5.2682E+04 -3.9421E+04 1.9734E+04 -5.9303E+03 8.0870E+02 S12 -3.4306E+04 4.9192E+04 -5.1388E+04 3.8039E+04 -1.8904E+04 5.6549E+03 -7.6923E+02

[0148] Table 6-2

[0149] Example 8

[0150] The following reference Fig.15 An optical imaging lens according to Example 8 of the present application is described.

[0151] like Fig.15 As shown, in this embodiment, the optical imaging lens comprises a lens barrel P0, an auxiliary lens barrel P0b, and a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6 which are arranged in sequence from the object side to the image side along the optical axis. The optical imaging lens further comprises a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object side surface partially abutting against the image side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object side surface partially abutting against the image side surface of the third lens E3; a fifth spacer P5, located between the fifth lens E5 and the sixth lens E6, with a gap between its object side surface and the image side surface of the fifth lens E5; and an assembly spacer PA, located between the fourth lens E4 and the fifth spacer P5, with its object side surface partially abutting against the image side surface of the fourth lens E4, its image side surface partially abutting against the object side surface of the fifth spacer P5, and its outer edge surface partially abutting against the inner wall of the lens barrel P0.

[0152] The structure of the optical imaging lens of this embodiment is the same as that of the optical imaging lens of Embodiment 7, that is, the basic parameter table of the optical imaging lens of this embodiment is the same as Table 5, and the high-order coefficient table of the aspherical mirror surface is the same as Table 6-1 and Table 6-2.

[0153] The difference between this embodiment and embodiment 7 is that the size values ​​of some relevant structural parameters of the spacer and the lens barrel are different. The values ​​of the relevant structural parameters in this embodiment and embodiment 7 are shown in Table 7 below, and the specific description of the multiple parameters is the same as the relevant description in the above embodiments 2 and 5, which will not be repeated here.

[0154] Example 9

[0155] The following reference Fig.16 Describe the optical lens according to Example 9 of the present application.

[0156] like Fig.16 As shown, in this embodiment, the optical imaging lens comprises a lens barrel P0, an auxiliary lens barrel P0b, and a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6 which are arranged in sequence from the object side to the image side along the optical axis. The optical imaging lens further comprises a plurality of spacers: a second spacer P2, located between the second lens E2 and the third lens E3, with its object side surface partially abutting against the image side surface of the second lens E2; a third spacer P3, located between the third lens E3 and the fourth lens E4, with its object side surface partially abutting against the image side surface of the third lens E3; a fifth spacer P5, located between the fifth lens E5 and the sixth lens E6, with a gap between its object side surface and the image side surface of the fifth lens E5; and an assembly spacer PA, located between the fourth lens E4 and the fifth spacer P5, with its object side surface partially abutting against the image side surface of the fourth lens E4, its image side surface partially abutting against the object side surface of the fifth spacer P5, and its outer edge surface partially abutting against the inner wall of the lens barrel P0.

[0157] The structure of the optical imaging lens of this embodiment is also the same as that of the optical imaging lens of Example 7, that is, the basic parameter table of the optical imaging lens of this embodiment is the same as Table 5, and the high-order coefficient table of the aspherical mirror surface is the same as Table 6-1 and Table 6-2.

[0158] The difference between this embodiment and embodiment 7 is that the size values ​​of some relevant structural parameters of the spacer and the lens barrel are different. The values ​​of the relevant structural parameters of this embodiment are also shown in Table 7 below. The specific description of the multiple parameters is the same as the relevant description in the above embodiments 2 and 5, and will not be repeated here.

[0159] Fig.17 The axial chromatic aberration curves of the optical imaging lenses of Examples 7, 8 and 9 are shown, which indicate the deviation of the convergent focus of light rays of different wavelengths passing through the back of the lens. Fig.18 Astigmatism curves of the optical imaging lenses of Examples 7, 8 and 9 are shown, which represent meridional image curvature and sagittal image curvature. Fig.19 The distortion curves of the optical imaging lenses of Example 7, Example 8 and Example 9 are shown, which represent the distortion values ​​corresponding to different field angles. Figures 17 to 19 It can be seen that the optical imaging lenses provided in Examples 7, 8 and 9 can achieve good imaging quality.

[0160] Parameters / Examples 1 2 3 4 5 6 7 8 9 D2s 5.060 5.060 5.060 4.943 4.999 4.792 6.314 5.669 5.669 D3s 4.940 4.674 3.976 4.839 4.517 4.672 5.327 5.282 5.282 d3bm 1.568 1.607 1.590 1.581 1.569 / 1.880 / / D3b 3.077 4.194 4.146 4.355 4.686 / 5.467 / / d5s / / / 1.873 1.868 1.868 1.941 1.940 1.940 d5m / / / 1.873 1.868 1.868 1.941 1.940 1.940 D5m / / / 4.346 4.010 3.870 5.171 4.585 4.752 d0s 9.092 8.076 8.065 7.592 7.907 7.907 7.757 7.376 7.376 d0m 2.099 2.099 2.099 2.189 2.186 2.186 2.260 2.257 2.257 D0s 9.375 9.223 9.156 8.515 8.972 8.972 9.137 9.088 9.040 D0m 6.575 5.375 5.838 5.545 4.753 5.171 6.586 6.576 5.979 EP02 0.869 0.869 0.869 1.869 1.630 1.630 1.614 1.413 1.468 EP23 2.279 2.285 1.874 1.560 1.015 1.600 1.340 0.633 0.791 L 5.246 5.246 5.246 5.694 5.521 5.521 5.519 5.553 5.608 dAm 3.151 2.892 2.919 4.228 3.484 3.564

[0161] Table 7

[0162] In addition, in Examples 1 to 9, the effective focal length values ​​f1 to f6 of the first lens to the sixth lens, the effective focal length f of the optical imaging lens, half of the maximum field of view Semi-FOV of the optical imaging lens, and the entrance pupil diameter EPD of the optical imaging lens are respectively as shown in Table 8 below.

[0163]

[0164]

[0165] Table 8

[0166] Examples 1 to 9 respectively satisfy the conditions shown in Table 9 below.

[0167] Conditional / Example 1 2 3 4 5 6 7 8 9 d0s / tan(Semi-FOV) / f -3.03 -2.69 -2.68 -3.00 -3.12 -3.12 -2.49 -2.37 -2.37 (D0s-D0m) / (f1-f6) -0.57 -0.78 -0.67 -0.56 -0.79 -0.71 -0.53 -0.52 -0.64 d0s / DT12-d0m / DT62 1.46 1.16 1.16 0.82 0.90 0.90 1.01 0.91 0.91 L / D0s 0.56 0.57 0.57 0.67 0.62 0.62 0.60 0.61 0.62 (D2s-D3s) / f3 0.03 0.11 0.30 0.03 0.14 0.03 0.22 0.09 0.09 (D3bm-d3bm) / DT41 0.95 1.63 1.61 1.75 1.97 / 1.90 / / EP02 / (f1-f2) -1.27 -1.27 -1.27 -0.90 -0.79 -0.79 -1.66 -1.45 -1.51 EP23 / (R5+R6) -0.25 -0.25 -0.20 -0.83 -0.54 -0.85 0.09 0.04 0.06 EP02 / CT2-EP23 / CT3 1.76 1.76 1.96 2.17 2.14 1.72 0.83 1.71 1.53 (R10+R11) / T56 36.64 36.64 36.64 19.83 19.83 19.83 17.84 17.84 17.84 d5m / (SAG52+SAG61) / / / 4.02 4.00 4.00 5.34 5.34 5.34 (dAm-d5s) / (D5m-DT61) / / / 0.53 0.49 0.54 0.71 0.59 0.58

[0168] Table 9

[0169] The present application also provides an imaging device, which is provided with an electronic photosensitive element for imaging, and the electronic photosensitive element can be a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS). The imaging device can be an independent imaging device such as a digital camera, or an imaging module integrated in a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.

[0170] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of protection involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the present application. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) to form a technical solution.

Claims

1. An optical imaging lens, characterized in that: It includes a lens barrel, a lens group, and an isolator group. At least part of the lens group and the isolator group are accommodated in the lens barrel. The lens group includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens arranged in sequence from the object side to the image side along the optical axis. Among them, the first lens has a negative optical power, the second lens has a negative optical power, the third lens has a positive optical power, the fourth lens has a positive optical power, the fifth lens has a negative optical power, and the sixth lens has a positive optical power. The inner wall of the near-object side end of the lens barrel and the outer peripheral surface of the first lens partially abut against each other. The non-transmissive part of the image side surface of the first lens and the non-transmissive part of the object side surface of the second lens partially abut against each other. The optical imaging lens satisfies: -4 < d0s / tan(Semi-FOV) / f < -2; and -1 < (D0s - D0m) / (f1 - f6) < 0, where d0s is the inner diameter of the object side end face of the lens barrel, Semi-FOV is half of the maximum field of view angle of the optical imaging lens, f is the effective focal length of the optical imaging lens, D0s is the outer diameter of the object side end face of the lens barrel, D0m is the outer diameter of the image side end face of the lens barrel, f1 is the effective focal length of the first lens, and f6 is the effective focal length of the sixth lens.

2. The optical imaging lens according to claim 1, wherein: The diameter DT12 of the transmissive part of the image side surface of the first lens, the inner diameter d0m of the image side end face of the lens barrel, and the diameter DT62 of the transmissive part of the image side surface of the sixth lens satisfy: 0.5 < d0s / DT12 - d0m / DT62 < 2.

3. The optical imaging lens according to claim 1, wherein: The maximum height L of the lens barrel along the optical axis direction satisfies: 0.5 < L / D0s < 0.

7.

4. The optical imaging lens according to claim 1, wherein: The isolator group includes: a second isolator located between the second lens and the third lens, and its object side surface partially abuts against the image side surface of the second lens; a third isolator located between the third lens and the fourth lens, and its object side surface partially abuts against the image side surface of the third lens. The outer diameter D2s of the object side surface of the second isolator, the outer diameter D3s of the object side surface of the third isolator, and the effective focal length f3 of the third lens satisfy: 0 < (D2s - D3s) / f3 < 0.

5.

5. The optical imaging lens according to claim 1, wherein: The isolator group includes: a third isolator located between the third lens and the fourth lens, and its object side surface partially abuts against the image side surface of the third lens; a third auxiliary isolator located on the image side of the third isolator, and its image side surface partially abuts against the object side surface of the fourth lens. The outer diameter D3bm of the image side surface of the third auxiliary isolator, the inner diameter d3bm of the image side surface of the third auxiliary isolator, and the diameter DT41 of the transmissive part of the object side surface of the fourth lens satisfy: 0.8 < (D3bm - d3bm) / DT41 < 2.

6. The optical imaging lens according to claim 1, wherein: The isolator group includes: a second isolator located between the second lens and the third lens, and its object side surface partially abuts against the image side surface of the second lens. The distance EP02 from the object side end surface of the lens barrel to the object side surface of the second spacer on the optical axis and the effective focal length f2 of the second lens satisfy: -2 <EP02 / (f1-f2)<0。 7. The optical imaging lens according to claim 1, wherein: The spacer group includes: a second spacer, located between the second lens and the third lens, with its object side surface partially abutting against the image side surface of the second lens; a third spacer, located between the third lens and the fourth lens, with its object side surface partially abutting against the image side surface of the third lens; The distance EP23 from the image side surface of the second spacer to the object side surface of the third spacer on the optical axis, the curvature radius R5 of the object side surface of the third lens, and the curvature radius R6 of the image side surface of the third lens satisfy: -1 <EP23 / (R5+R6)<0.1。 8. The optical imaging lens according to claim 1, wherein: The spacer group includes: a second spacer, located between the second lens and the third lens, with its object side surface partially abutting against the image side surface of the second lens; a third spacer, located between the third lens and the fourth lens, with its object side surface partially abutting against the image side surface of the third lens; The distance EP02 from the object side end surface of the lens barrel to the object side surface of the second spacer on the optical axis, the center thickness CT2 of the second lens on the optical axis, the distance EP23 from the image side surface of the second spacer to the object side surface of the third spacer on the optical axis, and the center thickness CT3 of the third lens on the optical axis satisfy: 0.5 <EP02 / CT2-EP23 / CT3<3。 9. The optical imaging lens according to claim 1, wherein: The curvature radius R10 of the image side surface of the fifth lens, the curvature radius R11 of the object side surface of the sixth lens, and the distance T56 from the image side surface of the fifth lens to the object side surface of the sixth lens on the optical axis satisfy: 15<(R10+R11) / T56<40; as well as The spacer group includes: a fifth spacer, which is located between the fifth lens and the sixth lens, and has a gap between the object side surface of the fifth spacer and the image side surface of the fifth lens.

10. The optical imaging lens according to claim 9, characterized in that: The isolation member group also includes: an assembly isolation member, which is located between the fourth lens and the fifth isolation member, and whose object side surface is partially supported by the image side surface of the fourth lens, whose image side surface is partially supported by the object side surface of the fifth isolation member, and whose outer peripheral surface is partially supported by the inner wall of the lens barrel.

11. The optical imaging lens according to claim 9, wherein: The inner diameter d5m of the image side surface of the fifth spacer, the on-axis distance SAG52 from the intersection of the image side surface of the fifth lens and the optical axis to the effective radius vertex of the image side surface of the fifth lens, and the on-axis distance SAG61 from the intersection of the object side surface of the sixth lens and the optical axis to the effective radius vertex of the object side surface of the sixth lens satisfy: 4 <d5m / (SAG52+SAG61)<6。 12. The optical imaging lens according to claim 10, wherein: The inner diameter dAm of the image side surface of the assembly spacer, the inner diameter d5s of the object side surface of the fifth spacer, the outer diameter D5m of the image side surface of the fifth spacer, and the diameter DT61 of the light-transmitting portion of the object side surface of the sixth lens satisfy: 0.4<(dAm-d5s) / (D5m-DT61)<0.

8.

13. The optical imaging lens according to any one of claims 1 to 12, characterized in that: Also includes: The auxiliary lens barrel is located at the object side end of the lens barrel, and the inner annular surface of the auxiliary lens barrel matches the outer peripheral surface of the object side end of the lens barrel.

14. The optical imaging lens according to claim 13, wherein: In any plane passing through the optical axis, an angle between a line segment corresponding to the inner annular surface of the auxiliary lens barrel and a line segment corresponding to an inclination surface of the auxiliary lens barrel adjacent to the inner annular surface is an obtuse angle.

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