Optical imaging lens

Abstract

The utility model discloses an optical imaging lens, which comprises a lens barrel, and a lens group and a bearing piece group accommodated in the lens barrel, the lens group comprises a first lens to a sixth lens which are sequentially arranged from an object side to an image side along an optical axis, the first lens, the second lens, the fourth lens and the fifth lens have positive focal power, and the fourth lens and the fifth lens have negative focal power. The third lens and the sixth lens have negative focal power; the bearing piece set comprises a fourth bearing piece arranged between the fourth lens and the fifth lens and a fifth bearing piece arranged between the fifth lens and the sixth lens. The optical imaging lens satisfies the following conditions: 3.8 lt; t56 / T451t, T56 / T451t; 6.8, 1.7 lt, 6.8, 1.7 lt; eP 45 / T45lt; 4.5 and 1.6 lt; f5 / (D5s-d5s) lt; t45 is the distance between the fourth lens and the fifth lens on the optical axis, T56 is the distance between the fifth lens and the sixth lens on the optical axis, EP45 is the distance between the fourth bearing piece and the fifth bearing piece on the optical axis, f5 is the effective focal length of the fifth lens, D5s is the outer diameter of the object side face of the fifth bearing piece, and d5s is the inner diameter of the object side face of the fifth bearing piece.

Description

Technical Field

[0001] The present application relates to the field of optical devices, and particularly to an optical imaging lens. Background Art

[0002] In recent years, with the increasing changes in consumer demands, the requirements for optical imaging lenses have gradually become more complex and diverse. In different application scenarios, the performance of optical imaging lenses varies.

[0003] Six-piece optical imaging lenses have become the mainstream and are widely used in fields such as mobile phones, VR headsets, smart watches, and smart glasses. The rear lenses have a greater impact on the overall imaging of six-piece optical imaging lenses. For example, the fifth lens and the sixth lens are more sensitive. When the fifth lens, the sixth lens, and the supporting members nearby are not reasonably arranged, it will cause stray light problems in the optical imaging lens. Summary of the Utility Model

[0004] The present application provides an optical imaging lens that can at least solve or partially solve at least one problem or other problems existing in the prior art.

[0005] One aspect of the present application provides an optical imaging lens, including a lens barrel, a lens group and a supporting member group accommodated in the lens barrel. The lens group includes a first lens with a positive focal power, a second lens with a positive focal power, a third lens with a negative focal power, a fourth lens with a positive focal power, a fifth lens with a positive focal power, and a sixth lens with a negative focal power, which are arranged in sequence from the object side to the image side along the optical axis; the supporting member group includes a fourth supporting member and a fifth supporting member. The fourth supporting member is placed between the fourth lens and the fifth lens and contacts the image side surface of the fourth lens, and the fifth supporting member is placed between the fifth lens and the sixth lens and contacts the image side surface of the fifth lens; and the optical imaging lens satisfies: 3.8 < T56 / T45 < 6.8, 1.7 < EP45 / T45 < 4.5, and 1.6 < f5 / (D5s - d5s) < 2.8, where T45 is the axial distance between the fourth lens and the fifth lens, T56 is the axial distance between the fifth lens and the sixth lens, EP45 is the distance between the fourth supporting member and the fifth supporting member on the optical axis, f5 is the effective focal length of the fifth lens, D5s is the outer diameter of the object side surface of the fifth supporting member, and d5s is the inner diameter of the object side surface of the fifth supporting member.

[0006] Another aspect of the present application provides an optical imaging lens, which includes a lens barrel, a lens group and a support member group 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 support member group includes a fifth support member, and the fifth support member is disposed between the fifth lens and the sixth lens and contacts the image side surface of the fifth lens; and, the axial distance between the fifth lens and the sixth lens is greater than the axial distance between any two adjacent lenses among the first lens to the fifth lens; the outer diameter D5m of the image side surface of the fifth support member, the inner diameter d5m of the image side surface of the fifth support member and the axial distance T56 between the fifth lens and the sixth lens satisfy: 1.8 < (D5m - d5m) / T56 < 2.8.

[0007] Another aspect of the present application provides an optical imaging lens, which includes a lens barrel, a lens group and a support member group 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 support member group includes a fifth support member, and the fifth support member is disposed between the fifth lens and the sixth lens and contacts the image side surface of the fifth lens; and, the inner diameter d5m of the image side surface of the fifth support member, the effective focal length f6 of the sixth lens and the refractive index N6 of the sixth lens satisfy: -2.7 < d5m / f6 * N6 < -1.8.

[0008] According to an exemplary embodiment of the present application, the inner diameter d4m of the image side surface of the fourth support member, the inner diameter d5s of the object side surface of the fifth support member, the curvature radius R9 of the object side surface of the fifth lens and the curvature radius R10 of the image side surface of the fifth lens satisfy: -10.3 < R9 / d4m + R10 / d5s < -0.6.

[0009] According to an exemplary embodiment of the present application, the maximum thickness CP5 of the fifth support member, the axial distance T56 between the fifth lens and the sixth lens and the axial distance SAG61 between the intersection point of the object side surface of the sixth lens and the optical axis and the effective radius vertex of the object side surface of the sixth lens satisfy: -1.3 < SAG61 / (CP5 + T56) < -0.7.

[0010] According to an exemplary embodiment of the present application, the entrance pupil diameter EPD of the optical imaging lens, the inner diameter d0s of the object side end surface of the lens barrel and the outer diameter D0m of the image side end surface of the lens barrel satisfy: 0.95 < (D0m - d0s) / EPD < 1.2.

[0011] According to an exemplary embodiment of the present application, the bearing member group further includes a first bearing member disposed between the first lens and the second lens and in contact with the image side surface of the first lens; and the spacing distance T12 between the first lens and the second lens on the optical axis and the maximum thickness CP1 of the first bearing member satisfy: 1.85 < T12 / CP1 < 4.4.

[0012] According to an exemplary embodiment of the present application, the bearing member group further includes a first bearing member disposed between the first lens and the second lens and in contact with the image side surface of the first lens; and the central thickness CT1 of the first lens on the optical axis, the central thickness CT2 of the second lens on the optical axis, and the distance EP01 between the object-side end surface of the lens barrel and the object-side surface of the first bearing member on the optical axis satisfy: 1.6 < CT2 / (EP01 - CT1) < 2.9.

[0013] According to an exemplary embodiment of the present application, the bearing member group further includes a second bearing member disposed between the second lens and the third lens and in contact with the image side surface of the second lens; and the radius of curvature R3 of the object-side surface of the second lens and the radius of curvature R4 of the image side surface of the second lens satisfy: -2.6 < R3 / R4 < 0; the radius of curvature R5 of the object-side surface of the third lens and the radius of curvature R6 of the image side surface of the third lens satisfy: 1.4 < R5 / R6 < 1.9; the spacing distance T23 between the second lens and the third lens on the optical axis and the maximum thickness CP2 of the second bearing member satisfy: 0.3 < T23 / CP2 < 2.5.

[0014] According to an exemplary embodiment of the present application, the bearing member group further includes a first bearing member and a second bearing member, the first bearing member is disposed between the first lens and the second lens and in contact with the image side surface of the first lens, and the second bearing member is disposed between the second lens and the third lens and in contact with the image side surface of the second lens; and the combined focal length f12 of the first lens and the second lens, the outer diameter D1m of the image side surface of the first bearing member, and the inner diameter d2s of the object side surface of the second bearing member satisfy: 1.9 < f12 / (D1m - d2s) < 3.0.

[0015] According to an exemplary embodiment of the present application, the bearing member group further includes a first bearing member and a second bearing member, the first bearing member is disposed between the first lens and the second lens and in contact with the image side surface of the first lens, and the second bearing member is disposed between the second lens and the third lens and in contact with the image side surface of the second lens; and the central thickness CT2 of the second lens on the optical axis and the distance EP12 between the first bearing member and the second bearing member on the optical axis satisfy: 1 < CT2 / EP12 < 1.9.

[0016] According to an exemplary embodiment of the present application, the abutting member group further includes a third abutting member, the third abutting member is disposed between the third lens and the fourth lens and contacts the image side surface of the third lens; and, the axial distance T34 between the third lens and the fourth lens, the central thickness CT4 of the fourth lens on the optical axis, and the distance EP34 between the third abutting member and the fourth abutting member on the optical axis satisfy: 1.5 < (T34 + CT4) / EP34 < 3.8.

[0017] According to an exemplary embodiment of the present application, the abutting member group further includes a second abutting member and a third abutting member, the second abutting member is disposed between the second lens and the third lens and contacts the image side surface of the second lens, the third abutting member is disposed between the third lens and the fourth lens and contacts the image side surface of the third lens; and, the central thickness CT2 of the second lens on the optical axis and the central thickness CT3 of the third lens on the optical axis satisfy: 1.7 < CT2 / CT3 < 3.2; the distance EP23 between the second abutting member and the third abutting member on the optical axis and the axial distance T34 between the third lens and the fourth lens satisfy: 0.9 < EP23 / T34 < 1.6.

[0018] According to an exemplary embodiment of the present application, the abutting member group further includes a second abutting member and a third abutting member, the second abutting member is disposed between the second lens and the third lens and contacts the image side surface of the second lens, the third abutting member is disposed between the third lens and the fourth lens and contacts the image side surface of the third lens; and, the effective focal length f2 of the second lens and the outer diameter D2s of the object side surface of the second abutting member satisfy: 1.0 < f2 / D2s < 3.2; the effective focal length f3 of the third lens and the inner diameter d3s of the object side surface of the third abutting member satisfy: -2.6 < f3 / d3s < -1.5.

[0019] According to an exemplary embodiment of the present application, the abutting member group further includes a third abutting member and a third auxiliary abutting member, the third abutting member is disposed between the third lens and the fourth lens and contacts the image side surface of the third lens, the third auxiliary abutting member is disposed on the image side surface of the third abutting member and contacts the image side surface of the third abutting member; and, the axial distance T34 between the third lens and the fourth lens, the maximum thickness CP3 of the third abutting member, and the maximum thickness CP3b of the third auxiliary abutting member satisfy: 0 < (CP3b + CP3) / T34 < 0.7.

[0020] According to an exemplary embodiment of the present application, the abutting member group further includes a fourth auxiliary abutting member, the fourth auxiliary abutting member is disposed on the image side surface of the fourth abutting member and contacts the image side surface of the fourth abutting member.

[0021] The optical imaging lens provided by this application uses six lenses and satisfies "3.8 < T56 / T45 < 6.8". This will result in an excessive ratio of the sagittal height to the central thickness of the sixth lens, and there is a risk of welding marks easily appearing during the molding of the effective diameter part of the sixth lens, thereby affecting the imaging quality of the optical imaging lens. By controlling "1.7 < EP45 / T45 < 4.5" and "1.6 < f5 / (D5s - d5s) < 2.8", it is beneficial to reasonably distribute the edge thicknesses of the fifth and sixth lenses, so that the sagittal height of the object side of the sixth lens is within an appropriate range, ensuring that the ratio of the sagittal height of the object side of the sixth lens to the central thickness is not too large, and reducing the risk of welding marks appearing during the molding of the effective diameter part of the sixth lens; at the same time, it can also limit the inner and outer diameters of the object side of the fifth bearing member, and under the condition of satisfying the assembly stability of the optical imaging lens, the fifth bearing member can block the stray light generated at the front end. Description of the Drawings

[0022] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objectives, and advantages of this application will become more obvious. Among them:

[0023] Figure 1 Shows the structural layout diagram of an optical imaging lens of this application and the schematic diagram of some parameters;

[0024] Figure 2A Shows the structural schematic diagram of the optical imaging lens of Embodiment 1 of this application;

[0025] Figure 2B Shows the structural schematic diagram of the optical imaging lens of Embodiment 2 of this application;

[0026] Figure 2C Shows the structural schematic diagram of the optical imaging lens of Embodiment 3 of this application;

[0027] Figures 3A to 3D Respectively show the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the optical imaging lens of Embodiments 1 to 3 of this application;

[0028] Figure 4A Shows the structural schematic diagram of the optical imaging lens of Embodiment 4 of this application;

[0029] Figure 4B Shows the structural schematic diagram of the optical imaging lens of Embodiment 5 of this application;

[0030] Figure 4C Shows the structural schematic diagram of the optical imaging lens of Embodiment 6 of this application;

[0031] Figures 5A to 5DRespectively shown are the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the optical imaging lens according to Embodiment 4 to Embodiment 6 of the present application;

[0032] Figure 6A Shown is a schematic structural diagram of the optical imaging lens according to Embodiment 7 of the present application;

[0033] Figure 6B Shown is a schematic structural diagram of the optical imaging lens according to Embodiment 8 of the present application;

[0034] Figure 6C Shown is a schematic structural diagram of the optical imaging lens according to Embodiment 9 of the present application;

[0035] Figures 7A to 7D Respectively shown are the axial chromatic aberration curve, astigmatism curve, distortion curve, and lateral chromatic aberration curve of the optical imaging lens according to Embodiment 7 to Embodiment 9 of the present application;

[0036] Figure 8A and Figure 8B Respectively shown are a ray diagram and a spot diagram on the imaging surface of the optical imaging lens of the present application when T56 / T45 = 4.3, EP45 / T45 = 4, and f5 / (D5s - d5s) = 2.2;

[0037] Figure 9A and Figure 9B Respectively shown are another ray diagram and a spot diagram on the imaging surface of the optical imaging lens of the present application when T56 / T45 = 4.3, EP45 / T45 = 4, and f5 / (D5s - d5s) = -2.2;

[0038] Figure 10A and Figure 10B Respectively shown are a ray diagram and a spot diagram on the imaging surface of the optical imaging lens of the present application when T56 / T45 = 4.3, EP45 / T45 = 0.2, and f5 / (D5s - d5s) = -15;

[0039] Figure 11A and Figure 11B Respectively shown are a ray diagram and a spot diagram on the imaging surface of the optical imaging lens of the present application when T56 / T45 = 4.3, EP45 / T45 = 15, and f5 / (D5s - d5s) = 6. Detailed Embodiments

[0040] To better understand the present application, more detailed descriptions will be made on various aspects of the present application with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of the exemplary embodiments of the present application and do not limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0041] It should be noted that in this specification, the expressions such as 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 teachings of the present application, the first lens discussed below may also be referred to as the second lens or the third lens.

[0042] In the drawings, for the sake of clarity, the thickness, dimensions and shapes of the lenses have been slightly exaggerated. Specifically, the spherical or aspherical shapes shown in the drawings are shown by way of example. That is, the spherical or aspherical shapes are not limited to the spherical or aspherical shapes shown in the drawings. The drawings are for illustrative purposes only and are not drawn to an exact scale.

[0043] In this text, the paraxial region refers to the region near the optical axis. If the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the position of the concave surface is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the object being photographed is called the object side surface of the lens, and the surface of each lens closest to the imaging surface is called the image side surface of the lens.

[0044] It should also be understood that the terms "comprising" and / or "having", 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 describing the embodiments of the present application, the use of "may" means "one or more embodiments of the present application". And the term "exemplary" is intended to refer to an example or illustration.

[0045] Unless otherwise defined, all terms used herein (including technical and scientific terms) 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 a common dictionary) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0046] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The following embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but should not be construed as a limitation on the patent scope of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can be made, and these all belong to the protection scope of the present application. For example, the lens groups, lens barrels and support member groups in the embodiments of the present application can be combined arbitrarily, and it is not limited that the lens group in one embodiment can only be combined with the lens barrel and support member group in this embodiment.

[0047] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Figure 1 An exemplary structural layout diagram and a schematic diagram of some parameters of an optical imaging lens of the present application are shown to facilitate a better understanding of the present application. As Figure 1 shown, d0s is the inner diameter of the object-side end face of the lens barrel, d2s is the inner diameter of the object-side face of the second bearing member, d3s is the inner diameter of the object-side face of the third bearing member, d5s is the inner diameter of the object-side face of the fifth bearing member, D2s is the outer diameter of the object-side face of the second bearing member, D5s is the outer diameter of the object-side face of the fifth bearing member, D0m is the outer diameter of the image-side end face of the lens barrel, D1m is the outer diameter of the image-side face of the first bearing member, D5m is the outer diameter of the image-side face of the fifth bearing member, d4m is the inner diameter of the image-side face of the fourth bearing member, d5m is the inner diameter of the image-side face of the fifth bearing member, CP1 is the maximum thickness of the first bearing member, CP2 is the maximum thickness of the second bearing member, CP3 is the maximum thickness of the third bearing member, CP3b is the maximum thickness of the third auxiliary bearing member, CP5 is the maximum thickness of the fifth bearing member, EP01 is the distance between the object-side end face of the lens barrel and the object-side face of the first bearing member on the optical axis, EP12 is the distance between the first bearing member and the second bearing member on the optical axis, EP23 is the distance between the second bearing member and the third bearing member on the optical axis, EP34 is the distance between the third bearing member and the fourth bearing member on the optical axis, and EP45 is the distance between the fourth bearing member and the fifth bearing member on the optical axis.

[0048] Referring to Figure 2A 、 Figure 2B 、 Figure 2C 、 Figure 4A 、 Figure 4B 、 Figure 4C 、 Figure 6A 、 Figure 6B and Figure 6C , in a first aspect of the present application, an optical imaging lens is provided. The optical imaging lens may include a lens group, and the lens group may include 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. Each lens has at least one object-side face facing the object side and one image-side face facing the imaging surface side. Among the first lens to the sixth lens, there may be a spacing distance between any two adjacent lenses, and this spacing distance may be an air gap.

[0049] In an exemplary embodiment, the first lens may have a positive optical power. The second lens may have a positive optical power. The third lens may have a negative optical power. The fourth lens may have a positive optical power. The fifth lens may have a positive optical power. The sixth lens may have a negative optical power.

[0050] In an exemplary embodiment, the optical imaging lens further includes a support member group, and the support member group may include at least one support member. It should be understood that the present application does not specifically limit the number of support members. Any number of support members may be included between any two lenses, and any number of support members may also be included in the entire optical imaging lens. The support member helps the optical imaging lens intercept redundant refracted and reflected light paths, reduce the generation of stray light and ghost images, and improve the imaging quality.

[0051] In an exemplary embodiment, the optical imaging lens further includes a lens barrel. The lens group and the support member group are disposed within the lens barrel. The lens barrel includes an object-side end face, an image-side end face, an outer ring face, and an inner ring face. Among them, the end face of the lens barrel closest to the object side is the object-side end face of the lens barrel, and the end face of the lens barrel closest to the image side is the image-side end face of the lens barrel; in a direction perpendicular to the optical axis, the surface of the lens barrel farthest from the optical axis is the outer ring face, and the surface of the lens barrel closest to the optical axis is the inner ring face. Among them, the inner ring face is stepped, that is, the inner diameter of the inner ring face gradually decreases step by step from the image-side end face to the object-side end face. Correspondingly, the outer diameter of the outer ring face shows a decreasing trend from the image-side end face to the object-side end face.

[0052] In an exemplary embodiment, the optical imaging lens may further include a diaphragm for restricting the light beam. The diaphragm is beneficial for converging the light entering the optical lens, reducing the maximum light passing aperture of the optical lens, and reducing the assembly sensitivity of the system to further improve the imaging quality of the optical lens. It should be noted that the diaphragm can be set at any position between or on one side of any lenses according to actual needs. For example, the diaphragm is set on the object side surface of the first lens.

[0053] In an exemplary embodiment, the support member group further includes a fourth support member and a fifth support member. The fourth support member may be disposed between the fourth lens and the fifth lens, and the object side surface of the fourth support member is at least partially in contact with the image side surface of the fourth lens. The fifth support member may be disposed between the fifth lens and the sixth lens, and the object side surface of the fifth support member is at least partially in contact with the image side surface of the fifth lens. The optical imaging lens satisfies: 3.8 < T56 / T45 < 6.8, 1.7 < EP45 / T45 < 4.5, and 1.6 < f5 / (D5s - d5s) < 2.8, where T45 is the distance between the fourth lens and the fifth lens on the optical axis, T56 is the distance between the fifth lens and the sixth lens on the optical axis, EP45 is the distance between the fourth support member and the fifth support member on the optical axis, f5 is the effective focal length of the fifth lens, D5s is the outer diameter of the object side surface of the fifth support member, and d5s is the inner diameter of the object side surface of the fifth support member.

[0054] In a six-piece optical imaging lens, usually when the optical imaging lens satisfies 3.8 < T56 / T45 < 6.8, it is easy to cause the ratio of the sagittal height to the central thickness of the sixth lens to be too large, and there is a risk of weld lines appearing in the effective diameter of the sixth lens during molding. In this application, by reasonably configuring the optical power of each lens and by setting and adjusting the fourth supporting member and the fifth supporting member, the edge thicknesses of the fifth lens and the sixth lens are reasonably distributed, ensuring that the ratio of the sagittal height to the central thickness of the sixth lens is not too large, reducing the risk of weld lines appearing in the effective diameter of the sixth lens during molding; and by controlling the focal length of the fifth lens and the inner and outer diameters of the object side surface of the fifth supporting member, while satisfying the lens assembly stability, stray light generated by the front lens mechanism can be blocked, improving the final imaging quality of the lens.

[0055] Figure 8A and Figure 8B respectively show a ray diagram and a spot diagram on the imaging surface of the optical imaging lens (Lens 1) of this application when T56 / T45 = 4.3, EP45 / T45 = 4, and f5 / (D5s - d5s) = 2.2;

[0056] Figure 9A and Figure 9B respectively show another ray diagram and a spot diagram on the imaging surface of the optical imaging lens (Lens 1) of this application when T56 / T45 = 4.3, EP45 / T45 = 4, and f5 / (D5s - d5s) = -2.2;

[0057] Figure 10A and Figure 10B respectively show a ray diagram and a spot diagram on the imaging surface of the optical imaging lens (Lens 2) of this application when T56 / T45 = 4.3, EP45 / T45 = 0.2, and f5 / (D5s - d5s) = -15;

[0058] Figure 11A and Figure 11B respectively show a ray diagram and a spot diagram on the imaging surface of the optical imaging lens (Lens 3) of this application when T56 / T45 = 4.3, EP45 / T45 = 15, and f5 / (D5s - d5s) = 6.

[0059] Figure 8A and Figure 8BThe value of T56 / T45 for the first lens is 4.3, which is within the range of 3.8 to 6.8. This will cause the ratio of the sag height to the central thickness of the sixth lens to be too large, increasing the risk of weld lines appearing during the molding of the effective diameter portion of the sixth lens, thereby affecting the imaging quality of the optical imaging lens. By controlling the ratios of EP45 / T45 and f5 / (D5s - d5s) to meet the ranges defined in this application, it is beneficial to reasonably distribute the edge thicknesses of the fifth and sixth lenses, keeping the sag height of the object side of the sixth lens within an appropriate range, ensuring that the ratio of the sag height of the object side of the sixth lens to its central thickness is not too large, and reducing the risk of weld lines appearing during the molding of the effective diameter portion of the sixth lens. At the same time, it can also limit the inner and outer diameters of the object side of the fifth bearing member. Under the condition of ensuring the assembly stability of the optical imaging lens, the fifth bearing member can block the stray light generated at the front end, from Figure 8B As can be seen, the stray light spots on the imaging surface are relatively dispersed and the number of spots is very small.

[0060] Figure 9A and Figure 9B For the first lens with the same situation, the value of T56 / T45 is also within the range of 3.8 to 6.8, which will cause the ratio of the sag height to the central thickness of the sixth lens to be too large, increasing the risk of weld lines appearing during the molding of the effective diameter portion of the sixth lens, thereby affecting the imaging quality of the optical imaging lens. By controlling the ratio of EP45 / T45 to meet the range defined in this application, it is beneficial to reasonably distribute the edge thicknesses of the fifth and sixth lenses, keeping the sag height of the object side of the sixth lens within an appropriate range, ensuring that the ratio of the sag height of the object side of the sixth lens to its central thickness is not too large, and reducing the risk of weld lines appearing during the molding of the effective diameter portion of the sixth lens. However, the ratio of f5 / (D5s - d5s) does not meet the range defined in this application. As can be seen from Figure 9B the number of stray light spots on the imaging surface is more than that in Figure 8B .

[0061] Figure 10A and Figure 10B For the second lens with the same situation, the value of T56 / T45 is also within the range of 3.8 to 6.8, which will cause the ratio of the sag height to the central thickness of the sixth lens to be too large, increasing the risk of weld lines appearing during the molding of the effective diameter portion of the sixth lens, thereby affecting the imaging quality of the optical imaging lens. However, neither the ratio of EP45 / T45 nor the ratio of f5 / (D5s - d5s) meets the range defined in this application. Not only can it not reduce the risk of weld lines appearing during the molding of the effective diameter portion of the sixth lens, but also as can be seen from Figure 10B the stray light spots on the imaging surface are concentrated on both sides and the number of spots is relatively large.

[0062] Figure 11A and Figure 11BThe value of T56 / T45 of the third lens is also in the range of 3.8 to 6.8, which will cause the ratio of the sagittal height to the central thickness of the sixth lens to be too large, and it is easy to have the risk of weld lines during the forming of the effective diameter part of the sixth lens, thus affecting the imaging quality of the optical imaging lens. However, the ratios of EP45 / T45 and f5 / (D5s - d5s) do not meet the ranges defined in this application. Not only can they not reduce the risk of weld lines during the forming of the effective diameter part of the sixth lens, but also from Figure 11B As can be seen, the stray light spots on the imaging surface are concentrated in the upper middle, and there are a large number of spots with high spot energy.

[0063] In an exemplary embodiment, the bearing member group further includes a fourth bearing member and a fifth bearing member. The fourth bearing member can be placed between the fourth lens and the fifth lens, and the object side surface of the fourth bearing member is at least partially in contact with the image side surface of the fourth lens. The fifth bearing member can be placed between the fifth lens and the sixth lens, and the object side surface of the fifth bearing member is at least partially in contact with the image side surface of the fifth lens. The inner diameter d4m of the image side surface of the fourth bearing member, the inner diameter d5s of the object side surface of the fifth bearing member, the curvature radius R9 of the object side surface of the fifth lens, and the curvature radius R10 of the image side surface of the fifth lens satisfy: -10.3 < R9 / d4m + R10 / d5s < -0.6. By controlling the above conditions, the shapes of the image side surface and the object side surface of the fifth lens are restricted, which is beneficial to the processing of the fifth lens; and by controlling the inner diameter of the object side surface of the fifth bearing member and the inner diameter of the image side surface of the fourth bearing member, it is beneficial to block stray light.

[0064] In an exemplary embodiment, the bearing member group further includes a fifth bearing member. The fifth bearing member can be placed between the fifth lens and the sixth lens, and the object side surface of the fifth bearing member is at least partially in contact with the image side surface of the fifth lens. The maximum thickness CP5 of the fifth bearing member, the axial spacing distance T56 between the fifth lens and the sixth lens on the optical axis, and the axial distance SAG61 between the intersection of the object side surface of the sixth lens and the optical axis and the vertex of the effective radius of the object side surface of the sixth lens satisfy: -1.3 < SAG61 / (CP5 + T56) < -0.7. By controlling the above parameters, the edge thicknesses of the fifth bearing member and the sixth lens are reasonably distributed, ensuring a proper thickness ratio between the fifth bearing member and the sixth lens, which is helpful for the processing and forming of the fifth bearing member and the sixth lens.

[0065] In an exemplary embodiment, the entrance pupil diameter EPD of the optical imaging lens, the inner diameter d0s of the object-side end face of the lens barrel, and the outer diameter D0m of the image-side end face satisfy: 0.95 < (D0m - d0s) / EPD < 1.2; and, the numerical aperture fno of the optical imaging lens satisfies: 1.3 < fno < 1.5. By controlling the above conditions, on the one hand, the volume of the lens barrel can be effectively controlled to achieve the thinning and lightening of the lens, and on the other hand, the numerical aperture and the entrance pupil diameter of the lens can be restricted to control the light flux of the lens, thereby improving the imaging quality.

[0066] In an exemplary embodiment, the support member group further includes a first support member disposed between the first lens and the second lens, and the object-side surface of the first support member is at least partially in contact with the image-side surface of the first lens. The distance T12 between the first lens and the second lens on the optical axis and the maximum thickness CP1 of the first support member satisfy: 1.85 < T12 / CP1 < 4.4. By controlling the maximum thickness of the first support member and the distance between the first lens and the second lens on the optical axis, the edge thicknesses of the first lens and the second lens are reasonably distributed, ensuring that the first lens and the second lens have a suitable forming thickness ratio, which is beneficial to forming.

[0067] In an exemplary embodiment, the support member group further includes a first support member disposed between the first lens and the second lens, and the object-side surface of the first support member is at least partially in contact with the image-side surface of the first lens. The central thickness CT1 of the first lens on the optical axis, the central thickness CT2 of the second lens on the optical axis, and the distance EP01 between the object-side end face of the lens barrel and the object-side surface of the first support member on the optical axis satisfy: 1.6 < CT2 / (EP01 - CT1) < 2.9. By controlling the above conditions, on the premise of ensuring the assembly stability of the lens group, it is ensured that the first lens and the second lens have a suitable thickness ratio, which is helpful for the processing and forming of the first lens and the second lens.

[0068] In an exemplary embodiment, the bearing member group further includes a second bearing member disposed between the second lens and the third lens, and the object side of the second bearing member is at least partially in contact with the image side of the second lens. The radius of curvature R3 of the object side of the second lens and the radius of curvature R4 of the image side of the second lens satisfy: -2.6 < R3 / R4 < 0; the radius of curvature R5 of the object side of the third lens and the radius of curvature R6 of the image side of the third lens satisfy: 1.4 < R5 / R6 < 1.9; the spacing distance T23 between the second lens and the third lens on the optical axis and the maximum thickness CP2 of the second bearing member satisfy: 0.3 < T23 / CP2 < 2.5. By controlling the radii of curvature of the object side and the image side of the second lens and the third lens, the overall shape uniformity of the second lens and the third lens can be effectively controlled, which is conducive to controlling the path of light in the lens and achieving good final imaging; by controlling the spacing distance between the second lens and the third lens on the optical axis and the maximum thickness of the second bearing member, the thickness tolerance can be reduced, and the structural sensitivity of the lens barrel can be improved. Among them, a light shield can be selected as the bearing member.

[0069] In an exemplary embodiment, the bearing member group further includes a first bearing member and a second bearing member. The first bearing member is disposed between the first lens and the second lens, and the object side of the first bearing member is at least partially in contact with the image side of the first lens. The second bearing member is disposed between the second lens and the third lens, and the object side of the second bearing member is at least partially in contact with the image side of the second lens. The combined focal length f12 of the first lens and the second lens, the outer diameter D1m of the image side of the first bearing member, and the inner diameter d2s of the object side of the second bearing member satisfy: 1.9 < f12 / (D1m - d2s) < 3.0. By controlling the combined focal length of the first lens and the second lens, it is beneficial to control the path of light in the first lens and the second lens, reduce the sensitivity of the lens, and at the same time help to block excess light, avoid stray light, and improve the imaging quality of the lens.

[0070] In an exemplary embodiment, the bearing member group further includes a first bearing member and a second bearing member. The first bearing member is disposed between the first lens and the second lens, and the object side of the first bearing member is at least partially in contact with the image side of the first lens. The second bearing member is disposed between the second lens and the third lens, and the object side of the second bearing member is at least partially in contact with the image side of the second lens. The central thickness CT2 of the second lens on the optical axis and the distance EP12 between the first bearing member and the second bearing member on the optical axis satisfy: 1 < CT2 / EP12 < 1.9. By controlling the distance between the first bearing member and the second bearing member on the optical axis and the central thickness of the second lens on the optical axis, the thickness ratio of the second lens is indirectly restricted, which is helpful for the processing and forming of the second lens.

[0071] In an exemplary embodiment, the support member group further includes a third support member disposed between the third lens and the fourth lens, and at least a part of the object side surface of the third support member is in contact with the image side surface of the third lens. The distance T34 between the third lens and the fourth lens on the optical axis, the central thickness CT4 of the fourth lens on the optical axis, and the distance EP34 between the third support member and the fourth support member on the optical axis satisfy: 1.5 < (T34 + CT4) / EP34 < 3.8. By controlling the above parameters, the thicknesses of the third support member and the fourth support member and the edge thicknesses of the third lens and the fourth lens are restricted, ensuring that the third support member and the fourth support member have appropriate molding thicknesses, and at the same time ensuring that the third lens and the fourth lens have appropriate thickness ratios, which is helpful for molding.

[0072] In an exemplary embodiment, the support member group further includes a second support member and a third support member. The second support member is disposed between the second lens and the third lens, and at least a part of the object side surface of the second support member is in contact with the image side surface of the second lens. The third support member is disposed between the third lens and the fourth lens, and at least a part of the object side surface of the third support member is in contact with the image side surface of the third lens. The central thickness CT2 of the second lens on the optical axis and the central thickness CT3 of the third lens on the optical axis satisfy: 1.7 < CT2 / CT3 < 3.2; the distance EP23 between the second support member and the third support member on the optical axis and the distance T34 between the third lens and the fourth lens on the optical axis satisfy: 0.9 < EP23 / T34 < 1.6. By controlling the above parameters, on the one hand, the central thicknesses of the second lens and the third lens on the optical axis are directly restricted; on the other hand, by controlling the distance between the third lens and the fourth lens on the optical axis and the distance between the second support member and the third support member on the optical axis, the sagittal height of the third lens is indirectly restricted from being too large, thereby improving the processability of the second lens and the third lens.

[0073] In an exemplary embodiment, the support member group further includes a second support member and a third support member. The second support member is disposed between the second lens and the third lens, and at least a part of the object side surface of the second support member is in contact with the image side surface of the second lens. The third support member is disposed between the third lens and the fourth lens, and at least a part of the object side surface of the third support member is in contact with the image side surface of the third lens. The effective focal length f2 of the second lens and the outer diameter D2s of the object side surface of the second support member satisfy: 1.0 < f2 / D2s < 3.2; the effective focal length f3 of the third lens and the inner diameter d3s of the object side surface of the third support member satisfy: -2.6 < f3 / d3s < -1.5. By controlling the effective focal lengths of the second lens and the third lens, it is beneficial for the positive and negative spherical aberrations generated by the second lens and the third lens to balance each other, and good imaging quality can be ensured; by controlling the inner diameter of the object side surface of the third support member, it is used to block excess stray light.

[0074] In an exemplary embodiment, the support member group further includes a third support member and a third auxiliary support member. The third support member is disposed between the third lens and the fourth lens, and at least a part of the object side surface of the third support member is in contact with the image side surface of the third lens. The third auxiliary support member is disposed on the image side surface of the third support member and is in partial contact with the image side surface of the third support member. The distance T34 between the third lens and the fourth lens on the optical axis, the maximum thickness CP3 of the third support member, and the maximum thickness CP3b of the third auxiliary support member satisfy: 0 < (CP3b + CP3) / T34 < 0.7. By controlling the above parameters, on the one hand, the maximum thickness of the third support member is directly restricted, which is beneficial to the injection molding of the third support member; on the other hand, the edge thicknesses of the third lens and the fourth lens are indirectly controlled, so that the two lenses have a suitable thickness ratio, which is beneficial to molding.

[0075] In an exemplary embodiment, the support member group may further include a fourth auxiliary support member disposed on the image side surface of the fourth support member and at least partially in contact with the image side surface of the fourth support member. Since the effective diameter edges of the image side surfaces of the third lens and the fourth lens are far apart, by providing the fourth auxiliary support member on the image side surface of the fourth support member, the edge thicknesses of the third lens and the fourth lens can be effectively restricted, which is beneficial to ensuring injection molding.

[0076] In an exemplary embodiment, the above optical imaging lens may further include a filter for correcting color deviation and / or a protective glass for protecting the photosensitive element located on the imaging surface.

[0077] The second aspect of the present application provides an optical imaging lens, including a lens barrel and a lens group and a support member group 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 along the optical axis from the object side to the image side; the support member group includes a fifth support member disposed between the fifth lens and the sixth lens, and at least a part of the object side surface of the fifth support member is in contact with the image side surface of the fifth lens; and the distance between the fifth lens and the sixth lens on the optical axis is greater than the distance between any two adjacent lenses among the first lens to the fifth lens on the optical axis; the outer diameter D5m of the image side surface of the fifth support member, the inner diameter d5m of the image side surface of the fifth support member, and the distance T56 between the fifth lens and the sixth lens on the optical axis satisfy: 1.8 < (D5m - d5m) / T56 < 2.8. By controlling the above parameters, on the one hand, it is to ensure the assembly stability of the sixth lens, and on the other hand, by restricting the inner diameter of the image side surface of the fifth support member, the stray light generated by the front lens mechanism is blocked, and the imaging quality is improved.

[0078] A third aspect of the present application provides an optical imaging lens, including a lens barrel, a lens group and a support member group 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 support member group includes a fifth support member, the fifth support member is disposed between the fifth lens and the sixth lens, and at least part of the object side surface of the fifth support member is in contact with the image side surface of the fifth lens; and, the inner diameter d5m of the image side surface of the fifth support member, the effective focal length f6 of the sixth lens and the refractive index N6 of the sixth lens satisfy: -2.7 < d5m / f6 * N6 < -1.8. By controlling the above parameters, the effective focal length and refractive index of the sixth lens can be constrained, which helps to control the path of light in the sixth lens; and by controlling the inner diameter of the image side surface of the fifth support member, stray light generated by the front lens mechanism can be blocked, improving the imaging quality.

[0079] Those skilled in the art should understand that, without departing from the technical solutions claimed in the present application, the number of lenses and support members constituting the optical imaging lens can be changed to obtain the various results and advantages described in this specification.

[0080] The following further describes specific embodiments of the optical imaging lens applicable to the above embodiments with reference to the accompanying drawings. Specifically, refer to Figures 2A to 3D Describe the optical imaging lens according to Embodiments 1 to 3 of the present application; refer to Figures 4A to 5D Describe the optical imaging lens according to Embodiments 4 to 6 of the present application; refer to Figures 6A to 7D Describe the optical imaging lens according to Embodiments 7 to 9 of the present application.

[0081] Example 1

[0082] Figure 2A The structural schematic diagram of the optical imaging lens 1001 according to Embodiment 1 of the present application is shown. As Figure 2A shown, the optical imaging lens 1001 includes a lens barrel P0, a six-piece lens group disposed in the lens barrel P0, and a support member group. The six-piece lens group sequentially includes, from the object side to the image side along the optical axis: 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. The aperture stop STO is disposed on the object side of the first lens E1.

[0083] The first lens E1 has a positive focal power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has a positive focal power, its object side S3 is convex, and its image side S4 is convex. The third lens E3 has a negative focal power, its object side S5 is convex, and its image side S6 is concave. The fourth lens E4 has a positive focal power, its object side S7 is convex, and its image side S8 is concave. The fifth lens E5 has a positive focal power, its object side S9 is convex, and its image side S10 is convex. The sixth lens E6 has a negative focal power, its object side S11 is concave, and its image side S12 is concave.

[0084] The bearing member group includes a first bearing member P1, a second bearing member P2, a third bearing member P3, a fourth bearing member P4, a fifth bearing member P5, a second auxiliary bearing member P2b, and a fourth auxiliary bearing member P4b.

[0085] The first bearing member P1 is placed between the first lens E1 and the second lens E2, and the object side of the first bearing member P1 is at least partially in contact with the image side S2 of the first lens E1. The second bearing member P2 is placed between the second lens E2 and the third lens E3, and the object side of the second bearing member P2 is at least partially in contact with the image side S4 of the second lens E2. The third bearing member P3 is placed between the third lens E3 and the fourth lens E4, and the object side of the third bearing member P3 is at least partially in contact with the image side S6 of the third lens E3. The fourth bearing member P4 is placed between the fourth lens E4 and the fifth lens E5, and the object side of the fourth bearing member P4 is at least partially in contact with the image side S8 of the fourth lens E4. The fifth bearing member P5 is placed between the fifth lens E5 and the sixth lens E6, and the object side of the fifth bearing member P5 is at least partially in contact with the image side S10 of the fifth lens E5. The second auxiliary bearing member P2b is placed on the image side of the second bearing member P2 and is in partial contact with the image side of the second bearing member P2. The fourth auxiliary bearing member P4b is placed on the image side of the fourth bearing member P4 and is in partial contact with the image side of the fourth bearing member P4.

[0086] In the example, a filter may also be provided between the sixth lens E6 and the imaging surface (not shown). The filter has an object side S13 (not shown) and an image side S14 (not shown). Light from the object sequentially passes through the surfaces S1 to S14 and finally forms an image on the imaging surface.

[0087] Table 1 shows the basic parameter table of the lens group of the optical imaging lens 1001 of Example 1, where the unit of the radius of curvature and the thickness / distance is millimeter (mm).

[0088]

[0089] Table 1

[0090] In this embodiment, the object side and the image side of any one of the first lens E1 to the sixth lens E6 are aspherical surfaces. The surface profile x of each aspherical lens can be defined by, but not limited to, the following aspherical formula:

[0091]

[0092] where x is the sagitta, the distance from the vertex of the aspherical surface to the aspherical surface along the optical axis at a position with a height of h; c is the paraxial curvature of the aspherical surface, c = 1 / R (i.e., the paraxial curvature c is the reciprocal of the radius of curvature R in Table 1 above); k is the conic coefficient; Ai is the correction coefficient of the i-th order of the aspherical surface. Table 2 gives the higher-order term coefficients A4, A6, A8, A 10 、A 12 、A 14 、A 16 、A 18 .

[0093] Face number A4 A6 A8 A10 A12 A14 A16 A18 S1 -9.1942E-02 6.8259E-04 7.5444E-04 -5.6050E-04 -8.3333E-05 6.0638E-05 1.4425E-05 2.6351E-07 S2 9.1837E-02 1.1047E-03 -9.1518E-04 -4.5632E-04 -1.2788E-05 7.3535E-05 4.7415E-06 0.0000E+00 S3 2.3452E-01 -1.2675E-02 -1.9698E-03 -3.8172E-05 2.2403E-05 -4.0586E-05 -1.7582E-05 -5.1693E-07 S4 -2.5878E-02 -5.7640E-03 1.9580E-03 -7.7413E-04 5.4147E-05 -1.0693E-05 -1.0646E-05 0.0000E+00 S5 -2.9389E-01 2.8847E-02 -3.5848E-04 -4.6396E-04 1.0189E-04 6.7663E-05 -3.1374E-05 0.0000E+00 S6 -3.2923E-01 6.2290E-03 -7.5162E-03 -1.6613E-03 -6.7960E-04 -2.0493E-04 -1.0629E-04 0.0000E+00 S7 -3.4442E-02 1.8778E-03 5.2054E-05 1.4495E-03 1.4304E-04 7.7431E-05 -2.6870E-06 0.0000E+00 S8 -2.5956E-01 2.4228E-02 -5.8044E-03 2.0115E-03 -1.4509E-04 1.0709E-04 -2.6662E-05 -3.9212E-07 S9 -3.4788E-01 3.2775E-02 -4.0486E-03 1.1327E-03 -4.5281E-04 1.4122E-04 -1.3292E-05 0.0000E+00 S10 -5.6636E-02 -9.1695E-03 3.1900E-03 -1.5406E-03 1.3878E-04 1.4594E-04 8.1058E-05 6.3795E-07 S11 -5.9716E-01 1.0131E-01 -2.0439E-02 2.9527E-03 -2.7973E-04 3.3583E-04 -5.2254E-05 -3.8202E-06 S12 -1.2973E+00 9.3946E-02 -5.3892E-02 1.1251E-02 -3.7551E-03 1.3137E-03 -6.0277E-04 -2.7451E-05

[0094] Table 2

[0095] Example 2

[0096] Figure 2B shows a schematic structural diagram of the optical imaging lens 1002 according to Embodiment 2 of the present application. As Figure 2B shown, the optical imaging lens 1002 includes a lens barrel P0, a six-piece lens group disposed in the lens barrel P0, and a support member group. The six-piece lens group sequentially includes, from the object side to the image side along the optical axis: 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. The aperture stop STO is disposed on the object side of the first lens E1. The support member group includes a first support member P1, a second support member P2, a third support member P3, a fourth support member P4, a fifth support member P5, a second auxiliary support member P2b, and a fourth auxiliary support member P4b.

[0097] The six-piece lens group of the optical imaging lens 1002 in this embodiment has the same structure as the six-piece lens group of the optical imaging lens 1001 in Embodiment 1. For the basic parameters, please refer to Tables 1 to 2, and details are not repeated here.

[0098] The difference between this embodiment and Embodiment 1 is that the structural dimensions of at least some elements in the lens barrel P0 and the support member group are different.

[0099] Example 3

[0100] Figure 2C shows a schematic structural diagram of the optical imaging lens 1003 according to Embodiment 3 of the present application. AsFigure 2C As shown in the figure, the optical imaging lens 1003 includes a lens barrel P0, a six-piece lens group disposed within the lens barrel P0, and a support member group. The six-piece lens group sequentially includes, along the optical axis from the object side to the image side: 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. The aperture stop STO is disposed on the object side of the first lens E1. The support member group includes a first support member P1, a second support member P2, a third support member P3, a fourth support member P4, a fifth support member P5, a second auxiliary support member P2b, and a fourth auxiliary support member P4b.

[0101] The six-piece lens group of the optical imaging lens 1003 in this embodiment has the same structure as the six-piece lens group of the optical imaging lens 1001 in Embodiment 1. For its basic parameters, please refer to Tables 1 to 2, and details will not be elaborated here.

[0102] The difference between this embodiment and Embodiment 1 lies in that the structural dimensions of at least some of the elements in the lens barrel P0 and the support member group are different.

[0103] Figure 3A The axial chromatic aberration curves of the optical imaging lenses of Embodiments 1 to 3 are shown, which represent the deviation of the convergence points of light rays with different wavelengths after passing through the lens. Figure 3B The astigmatism curves of the optical imaging lenses of Embodiments 1 to 3 are shown, which represent the meridional image plane curvature and the sagittal image plane curvature. Figure 3C The distortion curves of the optical imaging lenses of Embodiments 1 to 3 are shown, which represent the distortion magnitude values corresponding to different field angles. Figure 3D The longitudinal chromatic aberration curves of the optical imaging lenses of Embodiments 1 to 3 are shown, which represent the deviation of different image heights of light rays on the imaging plane after passing through the lens. According to Figures 3A to 3D It can be known that the optical imaging lenses given in Embodiments 1 to 3 can achieve good imaging quality.

[0104] Example 4

[0105] Figure 4A The structural schematic diagram of the optical imaging lens 2001 of Embodiment 4 of the present application is shown. As Figure 4A shown, the optical imaging lens 2001 includes a lens barrel P0, a six-piece lens group disposed within the lens barrel P0, and a support member group. The six-piece lens group sequentially includes, along the optical axis from the object side to the image side: 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. The aperture stop STO is disposed on the object side of the first lens E1.

[0106] The first lens E1 has a positive focal power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has a positive focal power, its object side S3 is convex, and its image side S4 is convex. The third lens E3 has a negative focal power, its object side S5 is convex, and its image side S6 is concave. The fourth lens E4 has a positive focal power, its object side S7 is convex, and its image side S8 is concave. The fifth lens E5 has a positive focal power, its object side S9 is convex, and its image side S10 is convex. The sixth lens E6 has a negative focal power, its object side S11 is concave, and its image side S12 is concave.

[0107] The bearing member group includes a first bearing member P1, a second bearing member P2, a third bearing member P3, a fourth bearing member P4, a fifth bearing member P5, a third auxiliary bearing member P3b, and a fourth auxiliary bearing member P4b.

[0108] The first bearing member P1 is placed between the first lens E1 and the second lens E2, and the object side of the first bearing member P1 is at least partially in contact with the image side S2 of the first lens E1. The second bearing member P2 is placed between the second lens E2 and the third lens E3, and the object side of the second bearing member P2 is at least partially in contact with the image side S4 of the second lens E2. The third bearing member P3 is placed between the third lens E3 and the fourth lens E4, and the object side of the third bearing member P3 is at least partially in contact with the image side S6 of the third lens E3. The fourth bearing member P4 is placed between the fourth lens E4 and the fifth lens E5, and the object side of the fourth bearing member P4 is at least partially in contact with the image side S8 of the fourth lens E4. The fifth bearing member P5 is placed between the fifth lens E5 and the sixth lens E6, and the object side of the fifth bearing member P5 is at least partially in contact with the image side S10 of the fifth lens E5. The third auxiliary bearing member P3b is placed on the image side of the third bearing member P3 and is in partial contact with the image side of the third bearing member P3. The fourth auxiliary bearing member P4b is placed on the image side of the fourth bearing member P4 and is in partial contact with the image side of the fourth bearing member P4.

[0109] In the example, a filter may also be provided between the sixth lens E6 and the imaging surface (not shown). The filter has an object side S13 (not shown) and an image side S14 (not shown). The light from the object sequentially passes through the surfaces S1 to S14 and finally forms an image on the imaging surface.

[0110] Table 3 shows the basic parameter table of the lens group of the optical imaging lens 2001 in Embodiment 4, where the units of the radius of curvature and the thickness / distance are both millimeters (mm).

[0111]

[0112] Table 3

[0113] In this embodiment, the object side and the image side of any one of the first lens E1 to the sixth lens E6 are aspherical surfaces. Table 4 gives the higher-order coefficients A4, A6, A8, A 10 、A 12 、A 14 、A 16 、A 18 。

[0114] Face number A4 A6 A8 A10 A12 A14 A16 A18 S1 9.4082E-03 4.4867E-03 1.1802E-03 2.7975E-04 6.9154E-05 1.1259E-05 4.5989E-06 4.6666E-07 S2 -1.3161E-01 1.0331E-02 3.7122E-03 -3.4359E-04 1.0551E-04 -3.2018E-05 -8.4953E-06 0.0000E+00 S3 -1.5102E-01 7.6765E-03 5.9170E-03 -5.2828E-04 1.3366E-04 -9.7789E-07 -2.1181E-05 0.0000E+00 S4 3.8345E-03 -7.3121E-03 3.7125E-03 3.0810E-04 2.3144E-04 -1.7386E-05 -1.0079E-05 0.0000E+00 S5 -1.8873E-01 4.7536E-03 -1.1653E-03 1.0818E-03 -1.0504E-04 -4.2328E-05 -1.7392E-05 0.0000E+00 S6 -2.5650E-01 8.4265E-03 -4.1362E-03 6.3149E-04 -3.4461E-04 1.5647E-05 -8.1172E-06 0.0000E+00 S7 -4.5618E-02 4.7123E-03 -1.0144E-03 7.1841E-04 1.4732E-04 3.8301E-05 -1.4603E-05 0.0000E+00 S8 -4.0488E-01 4.3851E-02 -8.0265E-03 1.5867E-03 3.2432E-04 1.7993E-04 1.2694E-05 0.0000E+00 S9 -4.4923E-01 4.8480E-02 -3.3291E-03 3.6570E-04 3.0819E-04 2.6932E-06 -1.0344E-04 0.0000E+00 S10 -5.9249E-02 -1.2507E-03 6.2676E-03 -1.4877E-03 5.4272E-04 -3.4594E-05 -6.8140E-05 -1.2993E-06 S11 -4.1435E-01 8.5451E-02 -1.8936E-02 4.8471E-03 -5.3483E-04 -4.8903E-05 -7.5467E-05 -1.0022E-05 S12 -1.0022E+00 9.3580E-02 -4.1649E-02 1.4268E-02 -2.6518E-03 9.5586E-04 -4.6206E-04 -2.5281E-06

[0115] Table 4

[0116] Example 5

[0117] Figure 4B shows a schematic structural diagram of the optical imaging lens 2002 according to Embodiment 5 of the present application. As Figure 4B shown, the optical imaging lens 2002 includes a lens barrel P0, a six-piece lens group disposed in the lens barrel P0, and a support member group. The six-piece lens group includes, in order from the object side to the image side along the optical axis: 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. The aperture stop STO is disposed on the object side of the first lens E1. The support member group includes a first support member P1, a second support member P2, a third support member P3, a fourth support member P4, a fifth support member P5, a third auxiliary support member P3b, and a fourth auxiliary support member P4b.

[0118] The six-piece lens group of the optical imaging lens 2002 in this embodiment has the same structure as the six-piece lens group of the optical imaging lens 2001 in Embodiment 4. For its basic parameters, see Tables 3 to 4, and details will not be repeated here.

[0119] The difference between this embodiment and Embodiment 4 is that the structural dimensions of at least some of the elements in the lens barrel P0 and the support member group are different.

[0120] Example 6

[0121] Figure 4C shows a schematic structural diagram of the optical imaging lens 2003 according to Embodiment 6 of the present application. As Figure 4CAs shown, the optical imaging lens 2003 includes a lens barrel P0, a six-piece lens group disposed within the lens barrel P0, and a support member group. The six-piece lens group sequentially includes, from the object side to the image side along the optical axis: 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. The aperture STO is disposed on the object side of the first lens E1. The support member group includes a first support member P1, a second support member P2, a third support member P3, a fourth support member P4, a fifth support member P5, a third auxiliary support member P3b, and a fourth auxiliary support member P4b.

[0122] The six-piece lens group of the optical imaging lens 2003 in this embodiment has the same structure as the six-piece lens group of the optical imaging lens 2001 in Embodiment 4. For its basic parameters, please refer to Tables 3 to 4 and will not be elaborated here.

[0123] The difference between this embodiment and Embodiment 4 lies in that the structural dimensions of at least some of the elements in the lens barrel P0 and the support member group are different.

[0124] Figure 5A The axial chromatic aberration curves of the optical imaging lenses of Embodiments 4 to 6 are shown, which represent the deviation of the convergence points of light rays of different wavelengths after passing through the lens. Figure 5B The astigmatism curves of the optical imaging lenses of Embodiments 4 to 6 are shown, which represent the meridional image plane curvature and the sagittal image plane curvature. Figure 5C The distortion curves of the optical imaging lenses of Embodiments 4 to 6 are shown, which represent the distortion magnitude values corresponding to different field angles. Figure 5D The longitudinal chromatic aberration curves of the optical imaging lenses of Embodiments 4 to 6 are shown, which represent the deviation of different image heights of light rays on the imaging plane after passing through the lens. According to Figures 5A to 5D It can be seen that the optical imaging lenses given in Embodiments 4 to 6 can achieve good imaging quality.

[0125] Example 7

[0126] Figure 6A The structural schematic diagram of the optical imaging lens 3001 of Embodiment 7 of the present application is shown. As Figure 6A shown, the optical imaging lens 3001 includes a lens barrel P0, a six-piece lens group disposed within the lens barrel P0, and a support member group. The six-piece lens group sequentially includes, from the object side to the image side along the optical axis: 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. The aperture STO is disposed on the object side of the first lens E1.

[0127] The first lens E1 has a positive focal power, its object side S1 is convex, and its image side S2 is concave. The second lens E2 has a positive focal power, its object side S3 is convex, and its image side S4 is convex. The third lens E3 has a negative focal power, its object side S5 is convex, and its image side S6 is concave. The fourth lens E4 has a positive focal power, its object side S7 is convex, and its image side S8 is concave. The fifth lens E5 has a positive focal power, its object side S9 is convex, and its image side S10 is convex. The sixth lens E6 has a negative focal power, its object side S11 is concave, and its image side S12 is concave.

[0128] The support member group includes a first support member P1, a second support member P2, a third support member P3, a fourth support member P4, a fifth support member P5, and a third auxiliary support member P3b.

[0129] The first support member P1 is placed between the first lens E1 and the second lens E2, and the object side of the first support member P1 is at least partially in contact with the image side S2 of the first lens E1. The second support member P2 is placed between the second lens E2 and the third lens E3, and the object side of the second support member P2 is at least partially in contact with the image side S4 of the second lens E2. The third support member P3 is placed between the third lens E3 and the fourth lens E4, and the object side of the third support member P3 is at least partially in contact with the image side S6 of the third lens E3. The fourth support member P4 is placed between the fourth lens E4 and the fifth lens E5, and the object side of the fourth support member P4 is at least partially in contact with the image side S8 of the fourth lens E4. The fifth support member P5 is placed between the fifth lens E5 and the sixth lens E6, and the object side of the fifth support member P5 is at least partially in contact with the image side S10 of the fifth lens E5. The third auxiliary support member P3b is placed on the image side of the third support member P3 and is in partial contact with the image side of the third support member P3.

[0130] In the example, a filter may also be provided between the sixth lens E6 and the imaging surface (not shown). The filter has an object side S13 (not shown) and an image side S14 (not shown). Light from the object sequentially passes through the surfaces S1 to S14 and finally forms an image on the imaging surface.

[0131] Table 5 shows the basic parameter table of the lens group of the optical imaging lens 3001 in Embodiment 7, where the units of the radius of curvature and the thickness / distance are both millimeters (mm).

[0132]

[0133] Table 5

[0134] In this embodiment, the object side and the image side of any one of the first lens E1 to the sixth lens E6 are both aspherical. Table 6 gives the higher-order term coefficients A4, A6, A8, A of the aspherical surfaces S1 to S12 that can be used in Embodiment 110 、A 12 、A 14 、A 16 、A 18 。

[0135] Face number A4 A6 A8 A10 A12 A14 A16 A18 S1 -1.4081E-01 9.5281E-03 8.9542E-04 -4.9962E-04 4.8511E-05 5.8442E-08 -1.3370E-06 0.0000E+00 S2 1.3941E-02 -2.3437E-03 3.5548E-03 -9.4664E-04 9.1884E-05 -3.8632E-06 -2.7235E-06 0.0000E+00 S3 2.3827E-01 -3.5334E-02 5.5578E-03 -8.8878E-04 2.4111E-04 1.7670E-06 6.9075E-06 0.0000E+00 S4 -6.4151E-03 -2.9335E-03 1.7731E-03 -1.1338E-04 7.1193E-05 2.1188E-05 2.9479E-06 0.0000E+00 S5 -2.5133E-01 3.1625E-02 2.2899E-04 -1.8892E-04 -4.4482E-05 3.5464E-05 -1.0012E-05 0.0000E+00 S6 -2.7453E-01 5.5591E-03 -3.8911E-03 -6.5819E-04 -3.0846E-04 -7.0857E-05 -3.2574E-05 -9.2873E-06 S7 1.0951E-01 -4.2696E-03 -2.9685E-04 4.9933E-04 -3.1797E-04 -8.4740E-05 -1.4112E-05 0.0000E+00 S8 -9.4589E-02 3.4574E-02 -4.9479E-03 1.6031E-03 -1.0082E-03 -3.0246E-04 -1.4967E-04 0.0000E+00 S9 -3.0102E-01 2.2951E-02 2.1208E-03 3.9187E-03 -5.1181E-04 -1.5104E-04 -1.6834E-04 -1.9330E-06 S10 -1.1905E-02 -2.5457E-02 5.7932E-03 7.5039E-04 4.6934E-04 1.1600E-04 3.5824E-05 0.0000E+00 S11 -3.4019E-01 6.5958E-02 -9.8458E-03 4.5400E-04 -9.9940E-04 3.8724E-05 -3.2559E-05 -4.5325E-06 S12 -7.3787E-01 6.4987E-02 -2.4937E-02 7.3306E-03 -1.2145E-03 7.3065E-04 -1.6250E-04 -2.0744E-07

[0136] Table 6

[0137] Example 8

[0138] Figure 6B shows a schematic structural diagram of the optical imaging lens 3002 according to Embodiment 8 of the present application. As Figure 6B shown, the optical imaging lens 3002 includes a lens barrel P0, a six-piece lens group disposed within the lens barrel P0, and a support member group. The six-piece lens group sequentially includes, along the optical axis from the object side to the image side: 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. The aperture stop STO is disposed on the object side of the first lens E1. The support member group includes a first support member P1, a second support member P2, a third support member P3, a fourth support member P4, a fifth support member P5, and a third auxiliary support member P3b.

[0139] The six-piece lens group of the optical imaging lens 3002 in this embodiment has the same structure as the six-piece lens group of the optical imaging lens 3001 in Embodiment 7. For its basic parameters, please refer to Tables 5 to 6, which will not be elaborated here.

[0140] The difference between this embodiment and Embodiment 7 lies in that: the structural dimensions of at least some of the elements in the lens barrel P0 and the support member group are different.

[0141] Example 9

[0142] Figure 6C shows a schematic structural diagram of the optical imaging lens 3003 according to Embodiment 9 of the present application. As Figure 6C shown, the optical imaging lens 3003 includes a lens barrel P0, a six-piece lens group disposed within the lens barrel P0, and a support member group. The six-piece lens group sequentially includes, along the optical axis from the object side to the image side: 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. The aperture stop STO is disposed on the object side of the first lens E1. The support member group includes a first support member P1, a second support member P2, a third support member P3, a fourth support member P4, a fifth support member P5, and a third auxiliary support member P3b.

[0143] The six-piece lens group of the optical imaging lens 3003 in this embodiment has the same structure as the six-piece lens group of the optical imaging lens 3001 in Embodiment 7. For its basic parameters, please refer to Tables 5 to 6, which will not be elaborated here.

[0144] The difference between this embodiment and Embodiment 7 lies in that the structural dimensions of at least some of the components in the lens barrel P0 and the bearing member group are different.

[0145] Figure 7A The axial chromatic aberration curves of the optical imaging lenses of Embodiments 7 to 9 are shown, which represent the deviation of the convergence points of light rays of different wavelengths after passing through the lens. Figure 7B The astigmatism curves of the optical imaging lenses of Embodiments 7 to 9 are shown, which represent the meridional image plane curvature and the sagittal image plane curvature. Figure 7C The distortion curves of the optical imaging lenses of Embodiments 7 to 9 are shown, which represent the distortion magnitude values corresponding to different field angles. Figure 7D The longitudinal chromatic aberration curves of the optical imaging lenses of Embodiments 7 to 9 are shown, which represent the deviation of different image heights of light rays on the imaging plane after passing through the lens. According to Figures 7A to 7D It can be seen that the optical imaging lenses given in Embodiments 7 to 9 can achieve good imaging quality.

[0146] Table 7 gives the values of parameters such as EPD, f, f1, f2, f3, f4, f5, f6, f12, SAG61, etc. for each of Embodiments 1 - 9. Among them, the units of EPD, f, f1, f2, f3, f4, f5, f6, f12, SAG61 in Table 7 are all millimeters (mm).

[0147] Parameter / Example 1 2 3 4 5 6 7 8 9 EPD 1.9985 1.9985 1.9985 1.9896 1.9896 1.9896 2.0413 2.0413 2.0413 f 2.8904 2.8904 2.8904 2.8777 2.8777 2.8777 2.9954 2.9954 2.9954 f1 4.0160 4.0160 4.0160 7.4911 7.4911 7.4911 6.8098 6.8098 6.8098 f2 10.0078 10.0078 10.0078 3.7348 3.7348 3.7348 4.3525 4.3525 4.3525 f3 -5.3074 -5.3074 -5.3074 -3.7990 -3.7990 -3.7990 -4.8762 -4.8762 -4.8762 f4 27.6425 27.6425 27.6425 12.3005 12.3005 12.3005 24.1805 24.1805 24.1805 f5 3.0977 3.0977 3.0977 2.7090 2.7090 2.7090 3.7870 3.7870 3.7870 f6 -2.0865 -2.0865 -2.0865 -1.7845 -1.7845 -1.7845 -2.2549 -2.2549 -2.2549 f12 2.9670 2.9670 2.9670 2.7105 2.7105 2.7105 2.7810 2.7810 2.7810 SAG61 -0.6979 -0.6979 -0.6979 -0.7304 -0.7304 -0.7304 -0.6824 -0.6824 -0.6824

[0148] Table 7

[0149] Table 8 gives the values of parameters such as D1m, d2s, D2s, d3s, d4m, d5s, d5m, D5s, D5m, d0s, D0m, EP01, CP1, EP12, CP2, EP23, CP3, EP34, EP45, CP5, and CP3b for each of Embodiments 1 - 9. Among them, the above parameters can be measured according to Figure 1 the marking method shown, and

[0150] the units of the parameters listed in Table 8 are all millimeters (mm).

[0151]

[0152]

[0153] Table 8 In summary, the optical imaging lenses of Embodiments 1 to 9 satisfy the relationships shown in Table 9.

[0154] Condition / Example 1 2 3 4 5 6 7 8 9 EP45 / T45 4.0140 4.0383 1.7576 4.2404 4.3877 2.2869 3.6653 4.0563 3.5743 d5m / f6*N6 -2.1774 -2.1932 -2.1869 -2.6168 -2.6225 -2.6225 -1.9329 -1.9399 -1.9399 T56 / T45 3.8913 3.8913 3.8913 4.3395 4.3395 4.3395 6.7204 6.7204 6.7204 f5 / (D5s-d5s) 2.1437 2.0313 2.3239 1.8997 1.7822 1.6722 2.5046 2.7011 2.3639 (D5m-d5m) / T56 2.2584 2.3835 2.0834 2.5474 2.7153 2.3581 2.0462 1.8974 2.1680 R9 / d4m+R10 / d5s -2.5688 -2.5420 -2.6860 -0.7182 -0.7101 -0.8578 -10.2190 -10.1744 -10.1850 T12 / CP1 2.3577 1.9290 3.5365 3.7885 3.0997 4.2620 3.1069 2.5420 3.4953 (D0m-d0s) / EPD 1.1559 1.1559 1.1058 1.1022 1.1495 1.0520 1.1493 1.1307 1.1434 CT2 / (EP01-CT1) 1.9630 2.1940 2.0798 1.8413 2.3541 2.8370 1.7644 1.8541 1.7249 f12 / (D1m-d2s) 2.6875 2.4643 2.9464 2.2291 2.0519 2.4375 2.3370 2.5679 2.1475 CT2 / EP12 1.7987 1.7426 1.7815 1.2627 1.2222 1.3061 1.1042 1.1874 1.1480 EP23 / T34 1.3291 1.3371 1.3491 1.0284 1.0197 1.0610 1.4138 1.5133 1.3765 CT2 / CT3 3.1319 3.1319 3.1319 1.7447 1.7447 1.7447 2.8945 2.8945 2.8945 f2 / D2s 3.0327 2.9435 3.1274 1.1671 1.1318 1.2048 1.2436 1.2801 1.2090 f3 / d3s -2.5603 -2.5334 -2.5011 -1.9492 -1.9235 -1.6626 -2.3810 -2.3443 -1.7674 T23 / CP2 1.5210 1.2444 2.2815 2.1165 1.7317 2.3811 0.4920 0.4025 0.5535 R3 / R4 -2.4316 -2.4316 -2.4316 -0.0280 -0.0280 -0.0280 -2.1966 -2.1966 -2.1966 R5 / R6 1.5113 1.5113 1.5113 1.8432 1.8432 1.8432 1.6218 1.6218 1.6218 (T34+CT4) / EP34 2.5715 2.8061 2.7969 1.9368 2.1685 3.6904 1.5426 1.6953 2.8256 SAG61 / (CP5+T56) -1.0610 -1.0546 -1.0642 -1.2642 -1.2555 -1.2686 -0.9016 -0.8968 -0.9039 (CP3b+CP3) / T34 0.0361 0.0442 0.0321 0.6227 0.5815 0.6010 0.6612 0.6136 0.6612

[0155] Table 9

[0156] The present application also provides an electronic device, which is equipped with the optical imaging lens described above. The electronic device can be wearable devices such as VR helmets, smart watches and smart glasses, can be an independent imaging device such as a digital camera, or can be a mobile electronic device such as a mobile phone, etc.

[0157] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solution formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the present application.

Claims

1. An optical imaging lens, characterized in that: Comprising: A lens group including a first lens with a positive focal power, a second lens with a positive focal power, a third lens with a negative focal power, a fourth lens with a positive focal power, a fifth lens with a positive focal power, and a sixth lens with a negative focal power arranged in sequence from the object side to the image side along the optical axis; A support member group including a fourth support member and a fifth support member, where the fourth support member is placed between the fourth lens and the fifth lens and contacts the image side surface of the fourth lens, and the fifth support member is placed between the fifth lens and the sixth lens and contacts the image side surface of the fifth lens; And A lens barrel accommodating the lens group and the support member group; The optical imaging lens satisfies: 3.8 < T56 / T45 < 6.8; 1.7 < EP45 / T45 < 4.5; and 1.6 < f5 / (D5s - d5s) < 2.8; Wherein, T45 is the distance between the fourth lens and the fifth lens on the optical axis, T56 is the distance between the fifth lens and the sixth lens on the optical axis, EP45 is the distance between the fourth support member and the fifth support member on the optical axis, f5 is the effective focal length of the fifth lens, D5s is the outer diameter of the object side surface of the fifth support member, and d5s is the inner diameter of the object side surface of the fifth support member.

2. The optical imaging lens according to claim 1, wherein: The distance between the fifth lens and the sixth lens on the optical axis is greater than the distance between any two adjacent lenses among the first lens to the fifth lens on the optical axis; and The outer diameter D5m of the image side surface of the fifth support member, the inner diameter d5m of the image side surface of the fifth support member, and the distance T56 between the fifth lens and the sixth lens on the optical axis satisfy: 1.8 < (D5m - d5m) / T56 < 2.

8.

3. The optical imaging lens according to claim 1, wherein: The inner diameter d5m of the image side surface of the fifth support member, the effective focal length f6 of the sixth lens, and the refractive index N6 of the sixth lens satisfy: -2.7 < d5m / f6 * N6 < -1.

8.

4. The optical imaging lens according to claim 1, wherein: The inner diameter d4m of the image side surface of the fourth support member, the inner diameter d5s of the object side surface of the fifth support member, the curvature radius R9 of the object side surface of the fifth lens, and the curvature radius R10 of the image side surface of the fifth lens satisfy: -10.3 < R9 / d4m + R10 / d5s < -0.

6.

5. The optical imaging lens according to claim 1, wherein: The maximum thickness CP5 of the fifth support member, the distance T56 between the fifth lens and the sixth lens on the optical axis, and the axial distance SAG61 between the intersection point of the object side surface of the sixth lens and the optical axis and the effective radius vertex of the object side surface of the sixth lens satisfy: -1.3 < SAG61 / (CP5 + T56) < -0.

7.

6. The optical imaging lens according to claim 1, wherein: The entrance pupil diameter EPD of the optical imaging lens, the inner diameter d0s of the object side end surface of the lens barrel, and the outer diameter D0m of the image side end surface of the lens barrel satisfy: 0.95 < (D0m - d0s) / EPD < 1.

2.

7. The optical imaging lens according to any one of claims 1 to 6, characterized in that: The support member group further includes a first support member placed between the first lens and the second lens and contacting the image side surface of the first lens; and The spacing distance T12 between the first lens and the second lens on the optical axis and the maximum thickness CP1 of the first supporting member satisfy: 1.85 <T12 / CP1<4.4。 8. The optical imaging lens according to any one of claims 1 to 6, characterized in that: The supporting member group further includes a first supporting member, which is disposed between the first lens and the second lens and contacts the image side surface of the first lens; and The distance EP01 between the center thickness CT1 of the first lens on the optical axis, the center thickness CT2 of the second lens on the optical axis, the object side end surface of the lens barrel and the object side surface of the first supporting member on the optical axis satisfies: 1.6 <CT2 / (EP01-CT1)<2.9。 9. The optical imaging lens according to any one of claims 1 to 6, characterized in that: The supporting member group further includes a second supporting member, the second supporting member is disposed between the second lens and the third lens and is in contact with the image side surface of the second lens; and The curvature radius R3 of the object side surface of the second lens and the curvature radius R4 of the image side surface of the second lens satisfy: -2.6 <R3 / R4<0; 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: 1.4 <R5 / R6<1.9; The spacing T23 between the second lens and the third lens on the optical axis and the maximum thickness CP2 of the second supporting member satisfy: 0.3 <T23 / CP2<2.5。 10. The optical imaging lens according to any one of claims 1 to 6, characterized in that: The supporting member group further includes a first supporting member and a second supporting member, the first supporting member is disposed between the first lens and the second lens and contacts the image side surface of the first lens, the second supporting member is disposed between the second lens and the third lens and contacts the image side surface of the second lens; and The combined focal length f12 of the first lens and the second lens, the outer diameter D1m of the image side surface of the first supporting member, and the inner diameter d2s of the object side surface of the second supporting member satisfy: 1.9 <f12 / (D1m-d2s)<3.0。 11. The optical imaging lens according to any one of claims 1 to 6, characterized in that: The supporting member group further includes a first supporting member and a second supporting member, the first supporting member is disposed between the first lens and the second lens and contacts the image side surface of the first lens, the second supporting member is disposed between the second lens and the third lens and contacts the image side surface of the second lens; and The center thickness CT2 of the second lens on the optical axis and the distance EP12 between the first supporting member and the second supporting member on the optical axis satisfy: 1 <CT2 / EP12<1.9。 12. The optical imaging lens according to any one of claims 1 to 6, characterized in that: The supporting member group further includes a third supporting member, the third supporting member is disposed between the third lens and the fourth lens and is in contact with the image side surface of the third lens; and The spacing distance T34 between the third lens and the fourth lens on the optical axis, the center thickness CT4 of the fourth lens on the optical axis, and the distance EP34 between the third supporting member and the fourth supporting member on the optical axis satisfy: 1.5<(T34+CT4) / EP34<3.

8.

13. The optical imaging lens according to any one of claims 1 to 6, characterized in that: The bearing member group further includes a second bearing member and a third bearing member, the second bearing member is disposed between the second lens and the third lens and contacts the image side surface of the second lens, the third bearing member is disposed between the third lens and the fourth lens and contacts the image side surface of the third lens; and The center thickness CT2 of the second lens on the optical axis and the center thickness CT3 of the third lens on the optical axis satisfy: 1.7 <CT2 / CT3<3.2; The distance EP23 between the second supporting member and the third supporting member on the optical axis and the spacing distance T34 between the third lens and the fourth lens on the optical axis satisfy: 0.9 <EP23 / T34<1.6。 14. The optical imaging lens according to any one of claims 1 to 6, characterized in that: The bearing member group further includes a second bearing member and a third bearing member, the second bearing member is disposed between the second lens and the third lens and contacts the image side surface of the second lens, the third bearing member is disposed between the third lens and the fourth lens and contacts the image side surface of the third lens; and The effective focal length f2 of the second lens and the outer diameter D2s of the object side surface of the second supporting member satisfy: 1.0 <f2 / D2s<3.2; The effective focal length f3 of the third lens and the inner diameter d3s of the object side surface of the third supporting member satisfy: -2.6 <f3 / d3s<-1.5。 15. The optical imaging lens according to any one of claims 1 to 6, characterized in that: The supporting member group further includes a third supporting member and a third auxiliary supporting member, wherein the third supporting member is disposed between the third lens and the fourth lens and contacts the image side surface of the third lens, and the third auxiliary supporting member is disposed on the image side surface of the third supporting member and contacts the image side surface of the third supporting member; as well as The spacing distance T34 between the third lens and the fourth lens on the optical axis, the maximum thickness CP3 of the third supporting member and the maximum thickness CP3b of the third auxiliary supporting member satisfy: 0<(CP3b+CP3) / T34<0.

7.

16. The optical imaging lens according to any one of claims 1 to 6, characterized in that: The supporting member group further includes a fourth auxiliary supporting member, which is disposed on the image side surface of the fourth supporting member and contacts the image side surface of the fourth supporting member.

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