Optical imaging lens

Abstract

The optical imaging lens comprises a lens barrel, a lens group and a separator group, and the lens group comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from an object side to an image side along an optical axis; 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; a second separator is arranged between the second lens and the third lens, and the object side surface of the second separator is partially supported against the image side surface of the second lens; half Semi-FOV of the maximum field angle of the optical imaging lens meets the following conditions: 100 degree lt; the method comprises the following steps: carrying out half-FOVlt; the inner diameter d0s of the object side end surface of the lens barrel and the effective focal length f1 of the first lens meet the following conditions:-2.5 lt; d0s / f1lt; the inner diameter d2s of the object side surface of the second isolation piece and the effective focal length f2 of the second lens meet the following formula:-2lt; d2s / f2lt; and-0.5.

Description

Technical Field

[0001] The present 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, for a six-piece ultra-wide-angle lens, due to the relatively large head of the lens, there is no spacer between the first and second lenses, and there is a large step at the front end of the lens. During the assembly process, the force on the front end of the lens is concentrated, which easily leads to changes in the defocus curve, seriously affecting the performance and yield of the lens, and亟待解决. Summary of the Utility Model

[0003] The present 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. 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 isolation member group at least includes: a second isolation member 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 optical imaging lens satisfies: 100° < Semi-FOV < 110°, -2.5 < d0s / f1 < -1, and -2 < d2s / f2 < -0.5, where Semi-FOV is half of the maximum field of view angle of the optical imaging lens, d0s is the inner diameter of the object side end face of the lens barrel, f1 is the effective focal length of the first lens, d2s is the inner diameter of the object side surface of the second isolation member, and f2 is the effective focal length of the second lens.

[0004] In one embodiment, the outer diameter D2m of the image side surface of the second isolation member and the distance T23 between the image side surface of the second lens and the object side surface of the third lens on the optical axis satisfy: 1 < (D2m - d2s) / T23 < 3.

[0005] In one embodiment, the isolation member group further includes: a third isolation member 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 distance EP23 between the image side surface of the second isolation member and the object side surface of the third isolation member 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) < 0.5.

[0006] In one embodiment, the spacer group further includes: 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 inner diameter d3s of the object side surface of the third spacer, the curvature radius R6 of the image side surface of the third lens, the inner diameter d3m of the image side surface of the third spacer, and the curvature radius R7 of the object side surface of the fourth lens satisfy: -3 <d3s / R6-d3m / R7<-1。

[0007] In one embodiment, the isolation member group also includes: 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 D3s of the object side surface of the third isolation member, the inner diameter d3s of the object side surface of the third isolation member, and the diameter DT32 of the light transmitting portion of the image side surface of the third lens satisfy: 0.5<(D3s-d3s) / DT32<2.

[0008] In one embodiment, the isolation member group also includes: 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 D3m of the image side surface of the third isolation member, the inner diameter d3m of the image side surface of the third isolation member, and the diameter DT41 of the light transmitting portion of the object side surface of the fourth lens satisfy: 1<(D3m-d3m) / DT41<2.5.

[0009] In one embodiment, the spacer group further includes: 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; and a third auxiliary spacer, located on the image side of the third spacer, and its image side surface is partially supported by the object side surface of the fourth lens; the inner diameter d3bm of the image side surface of the third auxiliary spacer and the intersection of the object side surface of the fourth lens and the optical axis to the effective radius vertex of the object side surface of the fourth lens SAG41 on the axis satisfies: 5 <d3bm / SAG41<8。

[0010] In one embodiment, a distance T45 from the image side surface of the fourth lens to the object side surface of the fifth lens on the optical axis, a curvature radius R8 of the image side surface of the fourth lens, and a curvature radius R9 of the object side surface of the fifth lens satisfy: T45<0.01 mm; and R8=R9.

[0011] In one embodiment, the spacer set further includes: a fifth spacer, located between the fifth lens and the sixth lens, with a gap between the object side surface of the fifth spacer and the image side surface of the fifth lens; the inner diameter d5s of the object side surface of the fifth spacer, the effective focal length f5 of the fifth lens, and the effective focal length f6 of the sixth lens satisfy: 2.5 <d5s / (f5+f6)<4.5。

[0012] In one embodiment, the isolation member group also includes: a fifth isolation member, 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; the outer diameter D5m of the image side surface of the fifth isolation member, the inner diameter d5m of the image side surface of the fifth isolation member, the curvature radius R10 of the image side surface of the fifth lens, and the curvature radius R11 of the object side surface of the sixth lens satisfy: 3<(D5m-d5m) / (R10-R11)<7.

[0013] In one embodiment, the isolation member group also includes: a fifth isolation member, which is located between the fifth lens and the sixth lens, and has a gap between its object side and the image side of the fifth lens; and an assembled isolation member, which is located between the fourth lens and the fifth isolation member, its object side portion rests against the image side portion of the fourth lens, its image side portion rests against the object side portion of the fifth isolation member, and its outer peripheral surface rests against the inner wall portion of the lens barrel.

[0014] In one embodiment, there is a gap between the outer surface of the fifth lens and the inner wall of the lens barrel, and the shortest distance Q from the outer surface of the fifth lens to the inner wall of the lens barrel satisfies: 0.2 mm <Q<0.8mm。

[0015] In one embodiment, the maximum thickness CPA of the assembled spacer along the optical axis direction satisfies: 0.2

[0016] In one embodiment, an outer diameter DAs of the object side surface of the assembled spacer and an inner diameter dAs of the object side surface of the assembled spacer satisfy: 0.3<(DAs-dAs) / 2 / Q<0.7.

[0017] In one embodiment, the optical imaging lens further includes: an auxiliary lens barrel, located at the object side end of the lens barrel, the inner annular surface of the auxiliary lens barrel cooperates with the outer peripheral surface of the near object side end of the lens barrel, and the inner edge surface of the object side end of the auxiliary lens barrel is in contact with the edge portion of the first lens.

[0018] In one embodiment, in any plane passing through the optical axis, the 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. ​

[0019] 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 order from the object side to the image side along the optical axis. The inner wall of the near-object side end of the lens barrel partially abuts against the outer peripheral surface of the first lens. The non-light-transmitting portions of the image side surface of the first lens and the object side surface of the second lens partially abut against each other. The spacer group at least 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. Half of the maximum field of view angle of the optical imaging lens, Semi-FOV, satisfies the conditional formula 100° < Semi-FOV < 110°. The inner diameter d0s of the object side end face of the lens barrel and the effective focal length f1 of the first lens satisfy the conditional formula -2.5 < d0s / f1 < -1. The inner diameter d2s of the object side surface of the second spacer and the effective focal length f2 of the second lens satisfy the conditional formula -2 < d2s / f2 < -0.5. Half of the maximum field of view angle of the optical imaging lens is greater than 100°, enabling ultra-wide-angle imaging. At the same time, controlling the maximum field of view angle within a reasonable range can make the imaging lens have the characteristics of high pixels, improve the resolution of the system, and improve the imaging quality of the lens. Since the head of the ultra-wide-angle imaging lens is relatively large, the settings of the first two lenses and the spacer (the first lens, the second lens, and the second spacer) will have a greater impact on the defocus curve of the imaging. By controlling the conditional formulas -2.5 < d0s / f1 < -1 and -2 < d2s / f2 < -0.5, it is possible to prevent the problem of positive defocus where the object is in front of the focal point and the light cannot form a clear image on the imaging surface due to too small an inner diameter of the spacer at the front end of the lens, and it is also possible to prevent the problem of negative defocus where the light cannot form a clear image on the imaging surface due to too large an inner diameter of the spacer at the front end of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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:

[0021] Figure 1 Schematic diagrams showing the structure and related parameters of an optical imaging lens according to an exemplary embodiment of the present application;

[0022] Figure 2 Schematic diagram showing the structure of an optical imaging lens according to Embodiment 1 of the present application;

[0023] Figure 3 Schematic diagram showing the structure of an optical imaging lens according to Embodiment 2 of the present application;

[0024] Figure 4 Schematic diagram showing the structure of an optical imaging lens according to Embodiment 3 of the present application;

[0025] 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;

[0026] Figure 8 A schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application is shown;

[0027] Fig. 9 A schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application is shown;

[0028] Fig.10 A schematic structural diagram of an optical imaging lens according to Embodiment 6 of the present application is shown;

[0029] 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;

[0030] Fig.14 A schematic structural diagram of an optical imaging lens according to Embodiment 7 of the present application is shown;

[0031] Fig.15 A schematic structural diagram of an optical imaging lens according to Embodiment 8 of the present application is shown;

[0032] Fig.16 A schematic structural diagram of an optical imaging lens according to Embodiment 9 of the present application is shown; and

[0033] 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;

[0034] Fig. 20 The MTF curve of the optical imaging lens is shown when d0s / f1=-1.9 and d2s / f2=-1.08 are satisfied;

[0035] Fig.21 The MTF curve of the optical imaging lens is shown when d0s / f1=-2.38 and d2s / f2=-1.27 are satisfied;

[0036] Fig. 22 shows the MTF curve of the optical imaging lens when d0s / f1=-0.7 and d2s / f2=-0.3; and

[0037] Fig.23 The MTF curve of the optical imaging lens is shown when d0s / f1=-3 and d2s / f2=-2.5. DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formalized sense unless expressly so defined herein.

[0044] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following embodiments only represent several implementation manners of this application, and their descriptions are relatively specific and detailed, but should not be construed as a limitation on the patent scope of this application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can still be made, and these all belong to the protection scope of this application. The following will describe this application in detail with reference to the drawings and in combination with the embodiments.

[0045] The features, principles, and other aspects of this application will be described in detail below.

[0046] The optical imaging lens according to an exemplary embodiment of this application may include a lens barrel, a lens group, and an isolation member group. The lens group and the isolation member group can be assembled or at least partially assembled in the lens barrel. The lens group can 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.

[0047] In an exemplary embodiment, the inner wall / inner ring surface of the near-object side end of the lens barrel can partially abut against the outer peripheral surface of the first lens. Refer to the attached Figure 2 , exemplarily, the inner wall of the near-object side end of the lens barrel P0 is the SP01 surface as indicated in the figure, and the outer peripheral surface of the first lens E1 is the SE11 surface as indicated in the figure.

[0048] In an exemplary embodiment, the non-light-transmitting part (non-effective diameter part) of the image side surface of the first lens and the non-light-transmitting part (non-effective diameter part) of the object side surface of the second lens partially abut against each other.

[0049] In an exemplary embodiment, the isolation member group in the optical imaging lens at least includes: a second isolation member 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.

[0050] In an exemplary embodiment, the optical imaging lens of this application can satisfy the condition 100° < Semi-FOV < 110°, where Semi-FOV is half of the maximum field of view angle of the optical imaging lens.

[0051] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula -2.5 < d0s / f1 < -1, 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), and f1 is the effective focal length of the first lens. More specifically, d0s and f1 can further satisfy -2.5 < d0s / f1 < -1.5.

[0052] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional formula -2 < d2s / f2 < -0.5, where d2s is the inner diameter of the object-side surface of the second spacer, and f2 is the effective focal length of the second lens.

[0053] 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 sequence from the object side to the image side along the optical axis; the inner wall of the near-object-side end of the lens barrel partially abuts against the outer periphery of the first lens; 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 spacer group at least 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. Half of the maximum field of view angle of the optical imaging lens, Semi-FOV, satisfies the conditional formula 100° < Semi-FOV < 110°. The inner diameter d0s of the object-side end face of the lens barrel and the effective focal length f1 of the first lens satisfy the conditional formula -2.5 < d0s / f1 < -1. The inner diameter d2s of the object-side surface of the second spacer and the effective focal length f2 of the second lens satisfy the conditional formula -2 < d2s / f2 < -0.5. Half of the maximum field of view angle of the optical imaging lens is greater than 100°, enabling ultra-wide-angle imaging; at the same time, controlling the maximum field of view angle within a reasonable range can make the imaging lens have the characteristics of high pixels, improve the resolution of the system, and improve the imaging quality of the lens. Since the head of the ultra-wide-angle imaging lens is relatively large, the settings of the first two lenses and the spacer (the first lens, the second lens, and the second spacer) will have a greater impact on the defocus curve of the imaging. By controlling the conditional formulas -2.5 < d0s / f1 < -1 and -2 < d2s / f2 < -0.5, it is possible to prevent the problem of positive defocus where the object is in front of the focal point and light cannot form a clear image on the imaging surface due to too small an inner diameter of the spacer at the front end of the lens, and it is also possible to prevent the problem of negative defocus where light cannot form a clear image on the imaging surface due to too large an inner diameter of the spacer at the front end of the lens.

[0054] See the attached Figures 20 to 23 which respectively show the MTF curves of the optical imaging lens in four different cases, Fig. 20 showing the MTF curve of the optical imaging lens when d0s / f1 = -1.9 and d2s / f2 = -1.08, Fig.21Shows the MTF curve of the optical imaging lens when d0s / f1 = -2.38 and d2s / f2 = -1.27 are satisfied. Fig. 22 Shows the MTF curve of the optical imaging lens when d0s / f1 = -0.7 and d2s / f2 = -0.3 are satisfied. Fig.23 Shows the MTF curve of the optical imaging lens when d0s / f1 = -3 and d2s / f2 = -2.5 are satisfied. Comparison Figures 20 to 23 It can be seen that when the ratio of the inner diameter d0s of the object-side end face of the lens barrel to the effective focal length f1 of the first lens is in the range greater than -2.5 and less than -1, and the ratio of the inner diameter d2s of the object-side surface of the second spacer to the effective focal length f2 of the second lens is in the range greater than -2 and less than -0.5, the MTF curve of the optical imaging lens is better, and the lens has better optical performance. According to the optical imaging lens of the embodiment of the present application, by controlling d0s, f1, d2s, and f2 to satisfy the conditional expressions -2.5 < d0s / f1 < -1 and -2 < d2s / f2 < -0.5, the defocus of the lens can be better controlled, which can prevent the problem of positive defocus where the object is in front of the focal point and light cannot form a clear image on the imaging surface due to the too small inner diameter of the spacer at the front end of the lens, and can also prevent the problem of negative defocus where the light cannot form a clear image on the imaging surface due to the too large inner diameter of the spacer at the front end of the lens.

[0055] In an exemplary embodiment, the first lens may have a negative optical power, its object-side surface may be convex, and its image-side surface may be concave. The second lens may have a negative optical power, its object-side surface may be convex, and its image-side surface may be concave. The third lens may have a positive optical power, its object-side surface may be convex, and its image-side surface may be convex or concave. The fourth lens may have a positive optical power, its object-side surface may be convex, and its image-side surface may be convex. The fifth lens may have a negative optical power, its object-side surface may be concave, and its image-side surface may be concave. The sixth lens may have a positive optical power, its object-side surface may be convex, and its image-side surface may be convex or concave.

[0056] In an exemplary embodiment, the spacer group in the optical imaging lens may further include a second auxiliary spacer located on the image side of the second spacer, and its image-side surface may partially abut against the object-side surface of the third lens.

[0057] In an exemplary embodiment, the spacer group in the optical imaging lens may further include a third spacer located between the third lens and the fourth lens, and its object-side surface may partially abut against the image-side surface of the third lens.

[0058] In an exemplary embodiment, the spacer group in the optical imaging lens may further 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.

[0059] In an exemplary embodiment, the spacer group in the optical imaging lens may further include a fifth spacer located between the fifth lens and the sixth lens, and there may be a certain gap between the object side surface of the fifth spacer and the image side surface of the fifth lens.

[0060] 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. The object side surface of the assembly spacer may partially abut against the image side surface of the fourth lens, the image side surface of the assembly spacer may partially abut against the object side surface of the fifth spacer, and the peripheral side surface of the assembly spacer may partially abut against the inner wall of the lens barrel. Refer to the appendix Figure 2 , exemplarily, the peripheral side surface of the assembly spacer PA is as Figure 2 the SPA1 surface indicated in

[0061] In an exemplary embodiment, the spacer group in the optical imaging lens may further include a fifth auxiliary spacer on the image side of the fifth spacer, and the image side surface of the fifth auxiliary spacer may partially abut against the object side surface of the sixth lens.

[0062] In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition 1 < (D2m - d2s) / T23 < 3, where D2m is the outer diameter of the image side surface of the second spacer, d2s is the inner diameter of the object side surface of the second spacer, and T23 is the distance on the optical axis from the image side surface of the second lens to the object side surface of the third lens. By controlling the lens to satisfy the condition 1 < (D2m - d2s) / T23 < 3, the air gap between the second lens and the third lens is restricted, which is beneficial to reasonably distributing the edge thicknesses of the second lens and the third lens, reducing the thickness ratio of the second lens, and facilitating the molding of the lens; at the same time, controlling the inner diameter of the object side surface and the outer diameter of the image side surface of the second spacer can ensure the path of the chief ray and eliminate the influence of stray light at the same time.

[0063] In an exemplary embodiment, the spacer group further includes a third spacer located between the third lens and the fourth lens. The optical imaging lens of the present application may satisfy the condition -1 < EP23 / (R5 + R6) < 0.5, 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) < 0.5, the distance from the image side surface of the second spacer to the object side surface of the third spacer is reasonably controlled, the edge thickness of the third lens is restricted, which is beneficial to the molding of the third lens and improves the molding accuracy; at the same time, controlling the curvature radii of the object side surface and the image side surface of the third lens within a reasonable range can ensure that the optical path realizes a specific deflection angle after passing through the third lens and ensure the transmission path of the light. More specifically, EP23, R5, and R6 may further satisfy: -1 < EP23 / (R5 + R6) < 0.15.

[0064] In an exemplary embodiment, the spacer group further includes a third spacer located between the third lens and the fourth lens. The optical imaging lens of the present application can satisfy the conditional formula -3 < d3s / R6 - d3m / R7 < -1, where d3s is the inner diameter of the object side surface of the third spacer, R6 is the curvature radius of the image side surface of the third lens, d3m is the inner diameter of the image side surface of the third spacer, and R7 is the curvature radius of the object side surface of the fourth lens. By controlling the lens to satisfy the conditional formula -3 < d3s / R6 - d3m / R7 < -1, the inner diameter of the object side and the inner diameter of the image side of the third spacer are controlled within a reasonable range, and the aperture diameter of the lens is controlled within a reasonable range, so that the size and direction of light can be controlled and the influence of stray light can be eliminated, making the imaging quality clearer and thus obtaining a better-quality image; at the same time, by reasonably controlling the curvature radius of the image side surface of the third lens and the curvature radius of the object side surface of the fourth lens, the deflection angle of the optical path passing through the air gap between the third lens and the fourth lens can be ensured.

[0065] In an exemplary embodiment, the spacer group further includes a third spacer located between the third lens and the fourth lens. The optical imaging lens of the present application can satisfy the conditional formula 0.5 < (D3s - d3s) / DT32 < 2, where D3s is the outer diameter of the object side surface of the third spacer, d3s is the inner diameter of the object side surface of the third spacer, and DT32 is the diameter of the light-transmitting part of the image side surface of the third lens. By controlling the inner diameter and outer diameter of the object side surface of the third spacer and the diameter of the light-transmitting part of the image side surface of the third lens to satisfy the conditional formula 0.5 < (D3s - d3s) / DT32 < 2, when the third spacer is assembled, the force application point of the third lens can be kept at a suitable position on the lens, so that the lens remains stable after assembly, the change in the air gap between the third lens and the fourth lens after assembly is reduced, and the performance of the lens is ensured.

[0066] In an exemplary embodiment, the spacer group further includes a third spacer located between the third lens and the fourth lens. The optical imaging lens of the present application can satisfy the conditional formula 1 < (D3m - d3m) / DT41 < 2.5, where D3m is the outer diameter of the image side surface of the third spacer, d3m is the inner diameter of the image side surface of the third 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 1 < (D3m - d3m) / DT41 < 2.5, the outer diameter of the image side surface and the inner diameter of the image side surface of the third spacer are reasonably restricted, ensuring the bearing length of the third spacer and other components on its image side, and improving the stability of the assembly between the third spacer and the fourth lens.

[0067] In an exemplary embodiment, the spacer group further includes a third spacer located between the third lens and the fourth lens, and a third auxiliary spacer on the image side of the third spacer. The optical imaging lens of the present application can satisfy the condition 5 < d3bm / SAG41 < 8, where d3bm is the inner diameter of the image side surface of the third auxiliary spacer, and SAG41 is the axial distance from the intersection of the object side surface of the fourth lens and the optical axis to the vertex of the effective radius of the object side surface of the fourth lens. By controlling the lens to satisfy the condition 5 < d3bm / SAG41 < 8, the inner diameter of the image side surface of the third auxiliary spacer is reasonably restricted, which is beneficial to eliminating stray light; by reasonably restricting the axial distance from the intersection of the object side surface of the fourth lens and the optical axis to the vertex of the effective radius of the object side surface of the fourth lens, the lens forming can be ensured to meet the process requirements.

[0068] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditions T45 < 0.01 mm and R8 = R9, where T45 is the distance on the optical axis from the image side surface of the fourth lens to the object side surface of the fifth lens, R8 is the curvature radius of the image side surface of the fourth lens, and R9 is the curvature radius of the object side surface of the fifth lens. By reasonably controlling the distance on the optical axis from the image side surface of the fourth lens to the object side surface of the fifth lens, and simultaneously controlling the curvature radius of the image side surface of the fourth lens to be equal to the curvature radius of the object side surface of the fifth lens, the fourth lens and the fifth lens can form a combination through the bonding process, and the resolution performance of the lens can be improved.

[0069] In an exemplary embodiment, the spacer group further includes a fifth spacer located between the fifth lens and the sixth lens, and there is a gap between the object side surface of the fifth spacer and the image side surface of the fifth lens. The optical imaging lens of the present application can satisfy the condition 2.5 < d5s / (f5 + f6) < 4.5, where d5s is the inner diameter of the object side surface of the fifth spacer, f5 is the effective focal length of the fifth lens, and f6 is the effective focal length of the sixth lens. By controlling the lens to satisfy the condition 2.5 < d5s / (f5 + f6) < 4.5, the inner diameter of the fifth spacer is reasonably restricted, which can play a role in eliminating stray light, and at the same time, reasonably restricting the effective focal lengths of the fifth lens and the sixth lens can play a role in controlling the lateral size of the lens (i.e., the size of the lens along the optical axis direction).

[0070] In an exemplary embodiment, the spacer group further includes a fifth spacer located between the fifth lens and the sixth lens, and there is a gap between the object side surface of the fifth spacer and the image side surface of the fifth lens; the optical imaging lens of the present application can satisfy the condition 3 < (D5m - d5m) / (R10 - R11) < 7, where D5m is the outer diameter of the image side surface of the fifth spacer, d5m is the inner diameter of the image side surface of the fifth spacer, R10 is the radius of curvature of the image side surface of the fifth lens, and R11 is the radius of curvature of the object side surface of the sixth lens. By controlling the lens to satisfy the condition 3 < (D5m - d5m) / (R10 - R11) < 7, reasonably controlling the outer diameter of the image side surface of the fifth spacer is beneficial to controlling the longitudinal dimension / radial dimension of the rear end surface of the lens. At the same time, reasonably restricting the inner diameter of the image side surface of the fifth spacer is beneficial to eliminating stray light; and reasonably controlling the radii of curvature of the fifth lens and the sixth lens is beneficial to ensuring the incident angle of the sixth lens and ensuring the transmission of light.

[0071] In an exemplary embodiment, the spacer group further includes a fifth spacer located between the fifth lens and the sixth lens, and there is a gap between the object side surface of the fifth spacer and the image side surface of the fifth lens; and, it further includes an assembled spacer located between the fourth lens and the fifth spacer. The object side surface of the assembled spacer partially abuts against the image side surface of the fourth lens, the image side surface of the assembled spacer partially abuts against the object side surface of the fifth spacer, and the outer peripheral surface of the assembled spacer partially abuts against the inner wall of the lens barrel. In an exemplary embodiment, the effective diameter portions / light-transmitting portions of the fourth lens and the fifth lens are glued to each other, while the non-effective diameter portions / non-light-transmitting portions are not glued and have a certain gap. By providing the assembled spacer, the stability of the lens assembly can be improved.

[0072] In an exemplary embodiment, no spacer is provided between the fourth lens and the fifth lens, and there is a gap between the outer peripheral surface of the fifth lens and the inner wall of the lens barrel. The shortest distance Q from the outer peripheral surface of the fifth lens (the upper edge of the non-effective diameter portion of the fifth lens) to the inner wall of the lens barrel satisfies: 0.2 mm < Q < 0.8 mm. Refer to the appendix Figure 3 , exemplarily, the outer peripheral surface of the fifth lens E5 is such as Figure 3 the SE51 surface indicated in. By reasonably controlling the gap between the outer peripheral surface of the fifth lens and the inner wall of the lens barrel within a reasonable range, the stability of the assembled spacer (such as Figure 3In an exemplary embodiment, a fifth spacer is provided between the fifth lens and the sixth lens, and a gap is formed between the object side surface of the fifth spacer and the image side surface of the fifth lens; and an assembly spacer is provided between the fourth lens and the fifth spacer, and the object side surface of the assembly spacer partially bears against the image side surface of the fourth lens, the image side surface of the assembly spacer partially bears against the object side surface of the fifth spacer, and the peripheral surface of the assembly spacer partially bears against the inner wall of the lens barrel. By providing the assembly spacer, the stability of the lens assembly can be improved.

[0073] In an exemplary embodiment, a fifth spacer is provided between the fifth lens and the sixth lens, and a gap is provided between the object side surface of the fifth spacer and the image side surface of the fifth lens; and an assembly spacer is provided between the fourth lens and the fifth spacer, the object side surface of the assembly spacer partially bears against the image side surface of the fourth lens, the image side surface of the assembly spacer partially bears against the object side surface of the fifth spacer, and the peripheral surface of the assembly spacer partially bears against the inner wall of the lens barrel; there is a gap between the peripheral surface of the fifth lens and the inner wall of the lens barrel, and the shortest distance Q from the peripheral surface of the fifth lens to the inner wall of the lens barrel and the maximum thickness CPA of the assembly spacer along the optical axis direction satisfy: 0.2

[0074] In an exemplary embodiment, a fifth spacer is arranged between the fifth lens and the sixth lens, and a gap is formed between the object side surface of the fifth spacer and the image side surface of the fifth lens; and an assembly spacer is arranged between the fourth lens and the fifth spacer, the object side surface of the assembly spacer partially abuts against the image side surface of the fourth lens, the image side surface of the assembly spacer partially abuts against the object side surface of the fifth spacer, and the outer surface of the assembly spacer partially abuts against the inner wall of the lens barrel; there is a gap between the outer surface of the fifth lens and the inner wall of the lens barrel, and the shortest distance Q from the outer surface of the fifth lens to the inner wall of the lens barrel and the outer diameter Das of the object side surface of the assembly spacer and the inner diameter dAs of the object side surface of the assembly spacer satisfy: 0.3<(DAs-dAs) / 2 / Q<0.7. By controlling this conditional expression, the shortest distance from the outer surface of the fifth lens to the inner wall of the lens barrel is reasonably limited, thereby ensuring the assembly space of the assembly spacer; at the same time, by reasonably limiting the outer diameter of the object side surface and the inner diameter of the object side surface of the assembly spacer, the supporting length of the assembly spacer and the fourth lens can be guaranteed, thereby ensuring the stability of the lens assembly.

[0075] 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 SP02 surface indicated in FIG. 1 , a portion of the inner annular surface SP0b1 of the auxiliary lens barrel P0b, for example, close to the image side end of the auxiliary lens barrel P0b may cooperate with a portion of the outer peripheral surface SP02 of the lens barrel P0 close to the object side end of the lens barrel P0.

[0076] 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, wherein the inner edge surface of the object side end of the auxiliary lens barrel may be as follows: Figure 3 The SP0b2 surface indicated in the figure may include, for example, an 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. By providing an auxiliary lens barrel that matches the object side end of the lens barrel and makes it fit the edge position of the first lens, it is possible to 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.

[0077] 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: Fig.14 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.

[0078] 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.

[0079] 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.

[0080] In an exemplary embodiment, one or more aspherical mirror surfaces may be provided on 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. The aspherical mirror surface has better curvature radius characteristics and has the advantages of improving distortion aberration and astigmatism aberration. By using the aspherical mirror surface, it is possible to eliminate as much aberration as possible during imaging, thereby improving the imaging quality.

[0081] 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. The inner wall of the near-object side end of the lens barrel partially abuts against the outer peripheral surface of the first lens. The non-transmissive portions of the image side surface of the first lens and the object side surface of the second lens partially abut against each other. The isolation member group at least includes a second isolation member 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. Half of the maximum field of view angle Semi-FOV of the optical imaging lens satisfies the conditional formula 100° < Semi-FOV < 110°. The inner diameter d0s of the object side end surface of the lens barrel and the effective focal length f1 of the first lens satisfy the conditional formula -2.5 < d0s / f1 < -1. The inner diameter d2s of the object side surface of the second isolation member and the effective focal length f2 of the second lens satisfy the conditional formula -2 < d2s / f2 < -0.5. Half of the maximum field of view angle of the optical imaging lens is greater than 100°, which can achieve ultra-wide-angle imaging. At the same time, by controlling the maximum field of view angle within a reasonable range, the imaging lens can have the characteristics of high pixels, improve the resolution of the system, and improve the imaging quality of the lens. Since the head of the ultra-wide-angle imaging lens is relatively large, the settings of the first two lenses and the isolation members (the first lens, the second lens, and the second isolation member) will have a greater impact on the defocus curve of the imaging. By controlling the conditional formulas -2.5 < d0s / f1 < -1 and -2 < d2s / f2 < -0.5, it is possible to prevent the problem of positive defocus, where the object is in front of the focal point and the light cannot form a clear image on the imaging surface due to too small an inner diameter of the isolation member at the front end of the lens, and it is also possible to prevent the problem of negative defocus, where the light cannot form a clear image on the imaging surface due to too large an inner diameter of the isolation member at the front end of the lens.

[0082] 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. The inner wall of the near-object-side end of the lens barrel partially abuts against the outer peripheral surface of the first lens. The non-light-transmitting portions of the image side surface of the first lens and the object side surface of the second lens partially abut against each other. The spacer group at least 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 outer diameter D2m of the image side surface of the second spacer, the inner diameter d2s of the object side surface of the second spacer, and the distance T23 on the optical axis from the image side surface of the second lens to the object side surface of the third lens to satisfy the conditional formula 1 < (D2m - d2s) / T23 < 3, the air gap between the second lens and the third lens is restricted, which is beneficial to reasonably distribute the edge thicknesses of the second lens and the third lens, reduce the thickness ratio of the second lens, and is beneficial to the molding of the lens. At the same time, the control of the inner diameter of the object side surface and the outer diameter of the image side surface of the second spacer can ensure the path of the chief ray and simultaneously eliminate the influence of stray light.

[0083] 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. The inner wall of the near-object-side end of the lens barrel partially abuts against the outer peripheral surface of the first lens. The non-light-transmitting portions of the image side surface of the first lens and the object side surface of the second lens partially abut against each other. The spacer group at least 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, and further includes a third spacer 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. By such an arrangement of the lens and controlling the inner diameter d3s of the object side surface of the third spacer, the curvature radius R6 of the image side surface of the third lens, the inner diameter d3m of the image side surface of the third spacer, and the curvature radius R7 of the object side surface of the fourth lens to satisfy the conditional formula -3 < d3s / R6 - d3m / R7 < -1, controlling the inner diameter on the object side and the inner diameter on the image side of the third spacer within a reasonable range and controlling the aperture of the lens diaphragm within a reasonable range can control the size and direction of light rays and eliminate the influence of stray light, making the imaging quality clearer, thereby obtaining a better-quality image. At the same time, by reasonably controlling the curvature radius of the image side surface of the third lens and the curvature radius of the object side surface of the fourth lens, the deflection angle of the light path passing through the air gap between the third lens and the fourth lens can be ensured.

[0084] On the other hand, the optical imaging lens according to the 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; the inner wall of the near-object-side end of the lens barrel partially bears against the outer peripheral surface of the first lens; the non-light-transmitting portion of the image-side surface of the first lens and the non-light-transmitting portion of the object-side surface of the second lens partially bear against each other; the spacer group includes at least a second spacer located between the second lens and the third lens, the object-side surface of which partially bears against the image-side surface of the second lens, and also includes a fifth spacer located between the fifth lens and the sixth lens, the object-side surface of which bears against the image-side surface of the fifth lens There is a gap between the surfaces; through this setting of the lens, and controlling the outer diameter D5m of the image side surface of the fifth isolation piece, the inner diameter d5m of the image side surface of the fifth isolation piece, the curvature radius R10 of the image side surface of the fifth lens and the curvature radius R11 of the object side surface of the sixth lens to satisfy the condition 3<(D5m-d5m) / (R10-R11)<7, reasonable control of the outer diameter of the image side surface of the fifth isolation piece is beneficial to controlling the longitudinal size / radial size of the rear end surface of the lens, while reasonable restriction of the inner diameter of the image side surface of the fifth isolation piece is beneficial to eliminating stray light; and reasonable control of the curvature radii of the fifth lens and the sixth lens is beneficial to ensuring the incident angle of the sixth lens and ensuring the transmission of light.

[0085] However, those skilled in the art should understand that, without departing from the technical solution 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, and the present application does not specifically limit this. 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 also include other numbers of lenses. For another example, as needed, the optical imaging lens may also include other numbers of spacers different from those described in the above embodiment.

[0086] Specific embodiments of the optical imaging lens applicable to the above-mentioned embodiments are further described below with reference to the accompanying drawings.

[0087] Example 1

[0088] The following reference Figure 2 An optical imaging lens according to Embodiment 1 of the present application is described.

[0089] like Figure 2 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.

[0090] 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.

[0091] 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.

[0092] 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).

[0093]

[0094] Table 1

[0095] 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:

[0096]

[0097] 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 , A12 , A 14 , A 16 , A 18 , A 20 , A 22 , A 24 , A 26 , A 28 and A 30 .

[0098] 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

[0099] Table 2-1

[0100] 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

[0101] Table 2-2

[0102] Example 2

[0103] The following reference Figure 3 An optical imaging lens according to Embodiment 2 of the present application is described.

[0104] 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 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.

[0105] 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.

[0106] 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:

[0107] The inner diameter d2s of the object side surface of the second isolator P2, the outer diameter D2m of the image side surface of the second isolator P2, the inner diameter d3s of the object side surface of the third isolator P3, the inner diameter d3m of the image side surface of the third isolator P3, the outer diameter D3s of the object side surface of the third isolator P3, the outer diameter D3m of the image side surface of the third isolator P3, the inner diameter d3bm of the image side surface of the third auxiliary isolator P3b, the inner diameter d5s of the object side surface of the fifth isolator P5, the image side surface of the fifth isolator 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, the inner diameter dAs of the object side surface of the assembled spacer PA, the outer diameter DAs of the object side surface of the assembled spacer PA, the inner diameter d0s of the object side end surface of the barrel P0, the distance EP23 on the optical axis from the image side surface of the second spacer P2 to the object side surface of the third spacer P3, the shortest distance Q from the outer edge surface of the fifth lens E5 to the inner wall of the barrel P0, and the maximum thickness CPA of the assembled spacer PA 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.

[0108] Example 3

[0109] The following reference Figure 4 Describe the optical lens according to Example 3 of the present application.

[0110] 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 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.

[0111] 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.

[0112] 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.

[0113] Figure 5 The 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.

[0114] Example 4

[0115] The following reference Figure 8 An optical imaging lens according to Embodiment 4 of the present application is described.

[0116] 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.

[0117] 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.

[0118] 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.

[0119] 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).

[0120]

[0121] Table 3

[0122] 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 28and A 30 .

[0123]

[0124]

[0125] Table 4-1

[0126] 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

[0127] Table 4-2

[0128] Example 5

[0129] The following reference Fig. 9 An optical imaging lens according to Embodiment 5 of the present application is described.

[0130] like Fig. 9 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.

[0131] 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.

[0132] 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 relevant structural parameters in this embodiment and embodiment 4 are shown in Table 7 below, and the specific description of the multiple parameters is the same as the relevant description in the above embodiment 2, which will not be repeated here.

[0133] Example 6

[0134] The following reference Fig.10Describe the optical lens according to Example 6 of the present application.

[0135] like Fig.10 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.

[0136] 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.

[0137] 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 relevant structural parameters of this embodiment are also shown in Table 7 below, and the specific description of the multiple parameters is the same as the relevant description in the above embodiment 2, which will not be repeated here.

[0138] 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.

[0139] Example 7

[0140] The following reference Fig.14 An optical imaging lens according to Embodiment 7 of the present application is described.

[0141] like Fig.14 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.

[0142] 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.

[0143] 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.

[0144] 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).

[0145]

[0146]

[0147] Table 5

[0148] 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 .

[0149] Face number A4 A6 A8 A10 A12 A14 A16 S3 7.5382E-03 -9.4673E-02 2.3630E-01 -3.1207E-01 2.5645E-01 -1.3889E-01 4.9594E-02 S4 -1.6467E-01 2.0919E+00 -1.1493E+01 3.7598E+01 -7.6184E+01 9.8394E+01 -8.1064E+01 S5 -2.1706E-02 -3.3024E-01 2.3968E+00 -9.6941E+00 2.4320E+01 -3.9576E+01 4.1782E+01 S6 -2.2056E-01 2.8768E-01 -6.6750E-01 1.4033E+00 -2.3009E+00 2.5807E+00 -1.8595E+00 S7 -2.1019E-01 1.6924E+00 -2.5650E+01 2.4634E+02 -1.5339E+03 6.4423E+03 -1.8693E+04 S8 -4.4002E+00 7.0705E+01 -8.7267E+02 7.9977E+03 -5.2178E+04 2.4248E+05 -8.1113E+05 S9 -4.4002E+00 7.0705E+01 -8.7267E+02 7.9977E+03 -5.2178E+04 2.4248E+05 -8.1113E+05 S10 -1.2182E+00 4.0199E+00 7.0439E+01 -1.3204E+03 1.1693E+04 -6.6216E+04 2.5888E+05 S11 -7.6046E-01 3.5224E+00 -6.6225E+00 -9.9999E+01 1.3563E+03 -9.0223E+03 3.8357E+04 S12 8.9986E-01 -2.6709E+01 4.0664E+02 -3.8791E+03 2.4766E+04 -1.1012E+05 3.4957E+05

[0150] Table 6-1

[0151] Face number A18 A20 A22 A24 A26 A28 A30 S3 -1.1231E-02 1.4595E-03 -8.2771E-05 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S4 4.1126E+01 -1.1684E+01 1.4199E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S5 -2.7673E+01 1.0460E+01 -1.7279E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S6 7.5717E-01 -1.2591E-01 -3.4200E-03 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S7 3.7825E+04 -5.3105E+04 5.0558E+04 -3.1033E+04 1.1036E+04 -1.7194E+03 0.0000E+00 S8 1.9676E+06 -3.4594E+06 4.3597E+06 -3.8351E+06 2.2341E+06 -7.7382E+05 1.2055E+05 S9 1.9676E+06 -3.4594E+06 4.3597E+06 -3.8351E+06 2.2341E+06 -7.7382E+05 1.2055E+05 S10 -7.2019E+05 1.4390E+06 -2.0521E+06 2.0390E+06 -1.3413E+06 5.2507E+05 -9.2578E+04 S11 -1.1120E+05 2.2457E+05 -3.1587E+05 3.0338E+05 -1.8965E+05 6.9516E+04 -1.1334E+04 S12 -8.0232E+05 1.3339E+06 -1.5904E+06 1.3251E+06 -7.3248E+05 2.4133E+05 -3.5870E+04

[0152] Table 6-2

[0153] Example 8

[0154] The following reference Fig.15 An optical imaging lens according to Example 8 of the present application is described.

[0155] 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 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; 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; and a fifth auxiliary spacer P5b, located on the image side of the fifth spacer P5, with its image side surface partially abutting against the object side surface of the sixth lens E6.

[0156] 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.

[0157] 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 embodiment 2, which will not be repeated here.

[0158] Example 9

[0159] The following reference Fig.16 Describe the optical lens according to Example 9 of the present application.

[0160] 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.

[0161] 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.

[0162] 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 embodiment 2, and will not be repeated here.

[0163] Fig.17The 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.

[0164]

[0165]

[0166] Table 7

[0167] 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.

[0168] Parameters / Examples 1 2 3 4 5 6 7 8 9 f1(mm) -3.812 -3.812 -3.812 -3.391 -3.391 -3.391 -3.389 -3.389 -3.389 f2(mm) -1.745 -1.745 -1.745 -2.419 -2.419 -2.419 -2.452 -2.452 -2.452 f3(mm) 3.532 3.532 3.532 4.456 4.456 4.456 4.455 4.455 4.455 f4(mm) 1.078 1.078 1.078 1.264 1.264 1.264 1.253 1.253 1.253 f5(mm) -0.875 -0.875 -0.875 -0.923 -0.923 -0.923 -1.032 -1.032 -1.032 f6(mm) 1.518 1.518 1.518 1.396 1.396 1.396 1.656 1.656 1.656 f(mm) 0.589 0.589 0.589 0.629 0.629 0.629 0.599 0.599 0.599 Semi-FOV(°) 103.100 103.100 103.100 101.400 101.400 101.400 101.400 101.400 101.400 EPD(mm) 0.439 0.439 0.439 2.733 2.733 2.733 0.494 0.494 0.494

[0169] Table 8 Examples 1 to 9 respectively satisfy the conditions shown in Table 9 below.

[0170] Conditional / Example 1 2 3 4 5 6 7 8 9 d0s / f1 -1.99 -2.07 -2.07 -2.29 -2.18 -2.18 -2.38 -2.28 -2.28 d2s / f2 -1.08 -1.11 -1.11 -0.95 -1.33 -1.33 -1.27 -1.28 -1.28 (D2m-d2s) / T23 2.47 2.48 2.31 1.93 0.74 0.89 1.15 0.78 0.78 EP23 / (R5+R6) -0.83 -0.54 -0.85 0.09 0.04 0.06 0.04 0.04 0.04 d3s / R6-d3m / R7 -1.80 -2.52 -1.80 -2.15 -1.52 -1.52 -1.95 -1.76 -1.94 (D3s-d3s) / DT32 1.90 0.95 1.80 1.32 1.58 1.58 1.27 0.96 0.96 (D3m-d3m) / DT41 2.11 1.44 2.01 1.31 1.82 1.82 1.47 1.23 1.16 d3bm / SAG41 6.51 6.46 / 5.81 / / 5.77 5.71 / d5s / (f5+f6) 2.91 2.91 2.91 4.10 4.10 4.10 2.84 2.85 2.95 (D5m-d5m) / (R10-R11) 4.34 3.76 3.51 6.53 5.35 5.69 3.37 3.36 3.29 Q / CPA 0.51 0.48 0.39 0.75 0.58 0.73 0.60 0.74 0.50 (DAs-dAs) / 2 / Q 0.59 0.55 0.55 0.59 0.62 0.37 0.65 0.52 0.62

[0171] Table 9

[0172] 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.

[0173] 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 a spacer group. At least part of the lens group and the spacer 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. 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 at least 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. The optical imaging lens satisfies: 100° < Semi-FOV < 110°, -2.5 < d0s / f1 < -1 and -2 < d2s / f2 < -0.5, wherein, Semi-FOV is half of the maximum field of view angle of the optical imaging lens, d0s is the inner diameter of the object side end face of the lens barrel, f1 is the effective focal length of the first lens, d2s is the inner diameter of the object side surface of the second spacer, and f2 is the effective focal length of the second lens.

2. The optical imaging lens according to claim 1, wherein: The outer diameter D2m of the image side surface of the second spacer and the distance T23 on the optical axis from the image side surface of the second lens to the object side surface of the third lens satisfy: 1 < (D2m - d2s) / T23 < 3.

3. The optical imaging lens according to claim 1, wherein: The spacer group further includes: a third spacer 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 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 satisfy: -1 < EP23 / (R5 + R6) < 0.

5.

4. The optical imaging lens according to claim 1, wherein: The spacer group further includes: a third spacer 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 inner diameter d3s of the object side surface of the third spacer, the curvature radius R6 of the image side surface of the third lens, the inner diameter d3m of the image side surface of the third spacer, and the curvature radius R7 of the object side surface of the fourth lens satisfy: -3 < d3s / R6 - d3m / R7 < -1.

5. The optical imaging lens according to claim 1, wherein: The spacer group further includes: a third spacer 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 D3s of the object side surface of the third spacer, the inner diameter d3s of the object side surface of the third spacer, and the diameter DT32 of the transmissive part of the image side surface of the third lens satisfy: 0.5 < (D3s - d3s) / DT32 < 2.

6. The optical imaging lens according to claim 1, wherein: The spacer group further includes: a third spacer 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 D3m of the image side surface of the third spacer, the inner diameter d3m of the image side surface of the third spacer, and the diameter DT41 of the transmissive part of the object side surface of the fourth lens satisfy: 1<(D3m-d3m) / DT41<2.

5.

7. The optical imaging lens according to claim 1, wherein: The spacer set further includes: 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; and a third auxiliary spacer, located on the image side of the third spacer, with its image side surface partially abutting against the object side surface of the fourth lens; The axial distance SAG41 from the intersection of the inner diameter d3bm of the image side surface of the third auxiliary spacer and the object side surface of the fourth lens and the optical axis to the vertex of the effective radius of the object side surface of the fourth lens satisfies: 5 <d3bm / SAG41<8。 8. The optical imaging lens according to claim 1, wherein: The distance T45 from the image side surface of the fourth lens to the object side surface of the fifth lens on the optical axis, the curvature radius R8 of the image side surface of the fourth lens, and the curvature radius R9 of the object side surface of the fifth lens satisfy: T45 < 0.01 mm; and R8=R9.

9. The optical imaging lens according to claim 1, wherein: The spacer set further includes: a fifth spacer, located between the fifth lens and the sixth lens, with a gap between the object side surface of the fifth lens and the image side surface of the fifth lens; The inner diameter d5s of the object side surface of the fifth spacer, the effective focal length f5 of the fifth lens and the effective focal length f6 of the sixth lens satisfy: 2.5 <d5s / (f5+f6)<4.5。 10. The optical imaging lens according to claim 1, wherein: The spacer set further includes: a fifth spacer, located between the fifth lens and the sixth lens, with a gap between the object side surface of the fifth lens and the image side surface of the fifth lens; The outer diameter D5m of the image side surface of the fifth spacer, the inner diameter d5m of the image side surface of the fifth spacer, the curvature radius R10 of the image side surface of the fifth lens, and the curvature radius R11 of the object side surface of the sixth lens satisfy: 3<(D5m-d5m) / (R10-R11)<7.

11. The optical imaging lens according to claim 1, wherein: The isolation element group also includes: a fifth spacer, located between the fifth lens and the sixth lens, with a gap between the object side surface of the fifth spacer and the image side surface of the fifth lens; and An assembled spacer is located between the fourth lens and the fifth spacer, with its object side surface partially abutting against the image side surface of the fourth lens, its image side surface partially abutting against the object side surface of the fifth spacer, and its outer peripheral surface partially abutting against the inner wall of the lens barrel.

12. The optical imaging lens according to claim 11, wherein: There is a gap between the outer surface of the fifth lens and the inner wall of the lens barrel, and the shortest distance Q from the outer surface of the fifth lens to the inner wall of the lens barrel satisfies: 0.2mm <Q<0.8mm。 13. The optical imaging lens according to claim 12, wherein: The maximum thickness CPA of the assembled spacer along the optical axis direction satisfies: 0.2 The outer diameter DAs of the object side of the assembled spacer and the inner diameter dAs of the object side of the assembled spacer satisfy:

14. The optical imaging lens according to claim 12, wherein: 0.3<(DAs-dAs) / 2 / Q<0.

7. Also includes:

15. The optical imaging lens according to any one of claims 1 to 14, characterized in that: The auxiliary lens barrel is located at the object side end of the lens barrel, the inner annular surface of the auxiliary lens barrel matches the peripheral surface of the lens barrel near the object side end, and the inner edge surface of the object side end of the auxiliary lens barrel is in contact with the edge portion of the first lens. ​ 16. The optical imaging lens according to claim 15, characterized in that: 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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