Optical imaging lens

Abstract

The utility model discloses an optical imaging lens, the optical imaging lens comprises a lens barrel, and a lens group and a bearing member group which are arranged in the lens barrel, and the lens group sequentially comprises a first lens with negative focal power, a second lens with negative focal power, a third lens with negative focal power, a fourth lens with negative focal power, a fifth lens with negative focal power and a sixth lens with negative focal power from an object side to an image side along an optical axis, and a fifth lens with negative focal power from the object side to the image side, the object side surface of the second lens is a concave surface, and the image side surface of the second lens is a convex surface; the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a convex surface; the fourth lens has negative focal power, and the image side surface of the fourth lens is a concave surface; the fifth lens has positive focal power, and the image side surface of the fifth lens is a convex surface; the object side surface of the sixth lens is a convex surface, and the image side surface of the sixth lens is a concave surface; the bearing piece set comprises a fifth bearing piece which is arranged on the image side of the fifth lens and makes contact with the image side face of the fifth lens. The optical imaging lens satisfies the following conditions: 2.25 lt; cT5 / CT6lt; 3.05); 6.25 lt, 6.25 lt; (d0m-d5s) / CT 6lt; cT5 is the center thickness of the fifth lens on the optical axis, CT6 is the center thickness of the sixth lens on the optical axis, d0m is the inner diameter of the image side end face of the lens barrel, 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 elements, and in particular, to an optical imaging lens. Background Art

[0002] As people's quality of life improves, the demand for various portable communication devices also increases, and smart wearable devices are rapidly becoming popular. Various smart wearable devices are used in high temperature or cold environments, which requires smart devices to be able to adapt to different environments and maintain stable imaging quality.

[0003] Lenses for smart wearable devices, especially those for small, handheld portable video communication devices, must not only be compact to fit within the device's space, but also withstand impact and meet high-quality imaging requirements in outdoor environments. However, existing lenses suffer from inter-lens reflection issues, which can easily lead to excessive stray light. Lenses with minimal stray light can also fail to meet these high-quality imaging requirements. Consequently, these lenses fail to meet these high-quality requirements. Utility Model Content

[0004] The first aspect of the present application provides an optical imaging lens, which includes: a lens barrel and a lens group and a supporting member group placed in the lens barrel, wherein the lens group includes, in order from the object side to the image side along the optical axis: a first lens with negative optical focal length, whose object side surface is convex and whose image side surface is concave; a second lens with optical focal length, whose object side surface is concave and whose image side surface is convex; a third lens with positive optical focal length, whose object side surface is convex and whose image side surface is convex; a fourth lens with negative optical focal length, whose image side surface is concave; a fifth lens with positive optical focal length, whose image side surface is convex; and a sixth lens with negative optical focal length, whose object side surface is convex and whose image side surface is concave; the supporting member group includes a fifth supporting member arranged on the image side of the fifth lens and in contact with the image side surface of the fifth lens. The optical imaging lens meets: 2.25 <CT5 / CT6<3.05;6.25<(d0m-d5s) / CT6<8.7,其中,CT5为第五透镜在光轴上的中心厚度,CT6为第六透镜在光轴上的中心厚度,d0m为镜筒的像侧端面的内径,d5s为第五承靠件的物侧面的内径。

[0005] In related technologies, lenses often cannot achieve both high image height and low stray light. In this application, the lens group sequentially includes, from the object side to the image side along the optical axis, a first lens with negative focal power, whose object side is convex and image side is concave; a second lens with focal power, whose object side is concave and image side is convex; a third lens with positive focal power, whose object side is convex and image side is convex; a fourth lens with negative focal power, whose image side is concave; a fifth lens with positive focal power, whose image side is convex; and a sixth lens with negative focal power, whose object side is convex and image side is concave, and the optical imaging lens satisfies 2.25 < CT5 / CT6 < 3.05. The above optical imaging lens structure has high image quality. However, between the fifth lens and the sixth lens, when the light path passes through, there will be more reflections, resulting in excessive stray light. In the optical imaging lens of this application, a fifth supporting member is arranged on the image side of the fifth lens, and 6.25 < (d0m - d5s) / CT6 < 8.7 is satisfied, so that the stray light path can be blocked when passing through the fifth supporting member and controlled within a reasonable range, effectively controlling the reflection problem between the sixth lens and the fifth lens. Based on this, the optical imaging lens provided by the embodiment of this application can achieve both high image height and low stray light, meeting the higher imaging quality requirements of the market for lenses, especially for lenses of smart wearable devices.

[0006] On the other hand, this application provides such an optical imaging lens, which includes: a lens barrel, and a lens group and a supporting member group disposed in the lens barrel. Among them, the lens group sequentially includes, from the object side to the image side along the optical axis: a first lens with negative focal power, whose object side is convex and image side is concave; a second lens with focal power, whose object side is concave and image side is convex; a third lens with positive focal power, whose object side is convex and image side is convex; a fourth lens with negative focal power, whose image side is concave; a fifth lens with positive focal power, whose image side is convex; and a sixth lens with negative focal power, whose object side is convex and image side is concave; the supporting member group includes a first supporting member disposed on the image side of the first lens and in contact with the image side of the first lens, and a second supporting member disposed on the image side of the second lens and in contact with the image side of the second lens and the inner wall of the lens barrel. The optical imaging lens satisfies: 2 < TD / f < 2.6; -2.1 < R3 / f < -1; -8.8 < R3 / EP12 < -4.38; 10 ≤ d2s / T23 < 43.2, where TD is the interval distance along the optical axis from the object side of the first lens to the image side of the sixth lens, f is the effective focal length of the optical imaging lens, R3 is the curvature radius of the object side of the second lens, EP12 is the axial distance from the image side of the first supporting member to the object side of the second supporting member, d2s is the inner diameter of the object side of the second supporting member, and T23 is the interval distance along the optical axis from the image side of the second lens to the object side of the third lens.

[0007] On the other hand, the present application provides an optical imaging lens, which includes: a lens barrel and a lens group and a supporting member group placed in the lens barrel, wherein the lens group includes, in order from the object side to the image side along the optical axis: a first lens with negative optical focal length, whose object side surface is convex and whose image side surface is concave; a second lens with optical focal length, whose object side surface is concave and whose image side surface is convex; a third lens with positive optical focal length, whose object side surface is convex and whose image side surface is convex; a fourth lens with negative optical focal length, whose image side surface is concave; a fifth lens with positive optical focal length, whose image side surface is convex; and a sixth lens with negative optical focal length, whose object side surface is convex and whose image side surface is concave. The optical imaging lens satisfies: 0.45<(D0m-D0s) / TD<0.6; 0.95 <L / TD<1.15,其中,D0m为镜筒的像侧端面的外径,D0s为镜筒的物侧端面的外径,TD为第一透镜的物侧面至第六透镜的像侧面沿光轴的间隔距离,L为镜筒的物侧端面至像侧端面沿光轴的间隔距离。

[0008] In one embodiment, the optical imaging lens satisfies: 2.1 <CT3 / CT4<3.2;2.2<(CT3+CT5) / L<2.75,其中,CT3为第三透镜在光轴上的中心厚度,CT4为第四透镜在光轴上的中心厚度,CT5为第五透镜在光轴上的中心厚度,L为镜筒的物侧端面至像侧面沿光轴的间隔距离。

[0009] In one embodiment, the optical imaging lens satisfies: 0.45<(D0m-D0s) / TD<0.6; 0.95 <L / TD<1.15,其中,D0m为镜筒的像侧端面的外径,D0s为镜筒的物侧端面的外径,TD为第一透镜的物侧面至第六透镜的像侧面沿光轴的间隔距离,L为镜筒的物侧端面至像侧端面沿光轴的间隔距离。

[0010] In one embodiment, the optical imaging lens satisfies: 1.7<(d0m-d5m) / EP50m<2.6, wherein d0m is the inner diameter of the image side end surface of the lens barrel, d5m is the inner diameter of the object side surface of the fifth supporting member, and EP50m is the spacing distance from the fifth supporting member to the image side end surface of the lens barrel along the optical axis.

[0011] In one embodiment, the support member group further includes a fourth support member disposed on the image side of the fourth lens and in contact with the image side surface of the fourth lens. The optical imaging lens satisfies: -2.4 < CT5 / SAG52 < -1.73; 0.45 < EP45 / CT5 < 0.65, where CT5 is the central thickness of the fifth lens on the optical axis, SAG52 is the axial spacing distance between the intersection of the image side surface of the fifth lens and the optical axis and the vertex of the effective radius of the image side surface of the fifth lens, and EP45 is the axial spacing distance between the image side surface of the fourth support member and the object side surface of the fifth support member along the optical axis.

[0012] In one embodiment, the axial spacing distance between the image side surface of the first lens and the object side surface of the second lens along the optical axis is greater than the axial spacing distances between other adjacent two lenses. The support member group further includes a first support member disposed on the image side of the first lens and in contact with the image side surface of the first lens, and a second support member disposed on the image side of the second lens and in contact with the image side surface of the second lens and the inner wall of the lens barrel. The optical imaging lens satisfies: 0.7 < CT1 / ET1 ≤ 1.3; 0.4 < EP01 / (CT1 + T12) < 1.25, where CT1 is the central thickness of the first lens on the optical axis, ET1 is the edge thickness of the first lens in the optically effective region, EP01 is the axial spacing distance between the object side end surface of the lens barrel and the object side surface of the first support member along the optical axis, and T12 is the axial spacing distance between the image side surface of the first lens and the object side surface of the second lens along the optical axis.

[0013] In one embodiment, the support member group further includes a second support member disposed on the image side of the second lens and in contact with the image side surface of the second lens and the inner wall of the lens barrel. The optical imaging lens satisfies: 0.35 < (d5s - d2m) / Tr5r10 ≤ 0.7, where d5s is the inner diameter of the object side surface of the fifth support member, d2m is the inner diameter of the image side surface of the second support member, and Tr5r10 is the axial spacing distance between the object side surface of the third lens and the image side surface of the fifth lens along the optical axis.

[0014] In one embodiment, the abutting member group further includes a second abutting member disposed on the image side of the second lens, contacting the image side surface of the second lens and contacting the inner wall of the lens barrel, and a third abutting member disposed on the image side of the third lens and contacting the image side surface of the third lens. The optical imaging lens satisfies: -1.1 < R6 / f3 < -0.65; -9.47 < SAG32 / SAG31 < -2.85; 1.45 < CT3 / EP23 < 2.75, where R6 is the radius of curvature of the image side surface of the third lens, f3 is the effective focal length of the third lens, SAG32 is the axial interval distance between the intersection of the image side surface of the third lens and the optical axis and the vertex of the effective radius of the image side surface of the third lens, SAG31 is the axial interval distance between the intersection of the object side surface of the third lens and the optical axis and the vertex of the effective radius of the object side surface of the third lens, CT3 is the central thickness of the third lens on the optical axis, and EP23 is the interval distance along the optical axis from the image side surface of the second abutting member to the object side surface of the third abutting member.

[0015] In one embodiment, the absolute value of the effective focal length of the third lens is less than the absolute value of the effective focal lengths of other lenses. The abutting member group further includes a third abutting member disposed on the image side of the third lens and contacting the image side surface of the third lens. The optical imaging lens satisfies: 0.75 < f3 / f < 1.05; 0.35 < d3s / D3s < 0.75, where f3 is the effective focal length of the third lens, f is the effective focal length of the optical imaging lens, d3s is the inner diameter of the object side surface of the third abutting member, and D3s is the outer diameter of the object side surface of the third abutting member.

[0016] In one embodiment, the abutting member group further includes a fourth abutting member disposed on the image side of the fourth lens and contacting the image side surface of the fourth lens. The optical imaging lens satisfies: 0 ≤ SAG51 / CT5 < 0.2; 0.7 < d4m / f5 < 1.3, where SAG51 is the axial interval distance between the intersection of the object side surface of the fifth lens and the optical axis and the vertex of the effective radius of the object side surface of the fifth lens, CT5 is the central thickness of the fifth lens on the optical axis, d4m is the inner diameter of the image side surface of the fourth abutting member, and f5 is the effective focal length of the fifth lens.

[0017] In one embodiment, the abutting member group further includes a third abutting member disposed on the image side of the third lens and in contact with the image side surface of the third lens, and a fourth abutting member disposed on the image side of the fourth lens and in contact with the image side surface of the fourth lens. The optical imaging lens satisfies: 0.1 < T34 / CT4 < 0.55; 0.45 < (D4s - D3s) / (T34 + CT4 + T45) < 1.38, where T34 is the axial interval distance from the image side surface of the third lens to the object side surface of the fourth lens, CT4 is the central thickness of the fourth lens on the optical axis, T45 is the axial interval distance from the image side surface of the fourth lens to the object side surface of the fifth lens, D4s is the outer diameter of the object side surface of the fourth abutting member, and D3s is the outer diameter of the object side surface of the third abutting member.

[0018] In one embodiment, the abutting member group further includes a fourth abutting member disposed on the image side of the fourth lens and in contact with the image side surface of the fourth lens. The fourth abutting member and the fifth abutting member are in contact with the inner wall of the lens barrel, and the inner wall of the lens barrel has a vertical step between the positions where the fourth abutting member and the fifth abutting member are in contact with the inner wall of the lens barrel. The optical imaging lens satisfies: 6.54 < d5s / T56 < 76.1; 0.75 < (D5m - D4m) / EP45 < 2.1, where d5s is the inner diameter of the object side surface of the fifth abutting member, T56 is the axial interval distance from the image side surface of the fifth lens to the object side surface of the sixth lens, D5m is the outer diameter of the image side surface of the fifth abutting member, D4m is the outer diameter of the image side surface of the fourth abutting member, and EP45 is the axial interval distance from the image side surface of the fourth abutting member to the object side surface of the fifth abutting member.

[0019] In one embodiment, the optical imaging lens satisfies: 0.4 ≤ (D5m - D4m) / (D0m - d0m) < 0.95, where D5m is the outer diameter of the image side surface of the fifth abutting member, D4m is the outer diameter of the image side surface of the fourth abutting member, D0m is the outer diameter of the image side end face of the lens barrel, and d0m is the inner diameter of the image side end face of the lens barrel.

[0020] In one embodiment, the abutting member group further includes a first abutting member disposed on the image side of the first lens and in contact with the image side surface of the first lens. The optical imaging lens satisfies: 1.33 < tan(FOV / 2) < 1.56; -2.7 < f1 / f < -1.9; 3.6 < (d0s - d1s) / CT1 < 6.45, where FOV is the maximum field of view angle of the optical imaging lens, f1 is the effective focal length of the first lens, f is the effective focal length of the optical imaging lens, d0s is the inner diameter of the object side end face of the lens barrel, d1s is the inner diameter of the object side surface of the first abutting member, and CT1 is the central thickness of the first lens on the optical axis.

[0021] In one embodiment, the abutting member group further includes a third abutting member disposed on the image side of the third lens and in contact with the image side surface of the third lens, and a fourth abutting member disposed on the image side of the fourth lens and in contact with the image side surface of the fourth lens. The optical imaging lens satisfies the following conditions: the refractive index of at least two lenses is greater than 1.6, wherein the refractive index of the fourth lens is greater than 1.6; and 0.5 < ET4 / (CP3 + EP34 + CP4) < 0.7, where ET4 is the edge thickness of the fourth lens in the optical effective region, CP3 is the distance along the optical axis from the object side surface to the image side surface of the third abutting member, EP34 is the distance along the optical axis from the image side surface of the third abutting member to the object side surface of the fourth abutting member, and CP4 is the distance along the optical axis from the object side surface to the image side surface of the fourth abutting member. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects, and advantages of the present application will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 Shows a structural layout diagram of an optical imaging lens and a schematic diagram of some parameters according to an embodiment of the present application;

[0024] Figure 2A Shows a structural schematic diagram of an optical imaging lens satisfying CT5 / CT6 = 2.27 and (d0m - d5s) / CT6 = 10.6 according to an embodiment of the present application; Figure 2B Shows Figure 2A a schematic diagram of stray light of the optical imaging lens; Figure 2C Shows Figure 2A a schematic diagram of actual measured stray light of the optical imaging lens;

[0025] Figure 3A Shows a structural schematic diagram of an optical imaging lens satisfying CT5 / CT6 = 2.27 and (d0m - d5s) / CT6 = 6.3 according to an embodiment of the present application; Figure 3B Shows Figure 3A a schematic diagram of stray light of the optical imaging lens; Figure 3C Shows Figure 3A a schematic diagram of actual measured stray light of the optical imaging lens;

[0026] Figure 4A Shows a structural schematic diagram of an optical imaging lens satisfying CT5 / CT6 = 2.27 and (d0m - d5s) / CT6 = 4.6 according to an embodiment of the present application, Figure 4B Shows Figure 4A a partially enlarged schematic diagram of part J of the optical imaging lens; Figure 4C Shows Figure 4A a schematic diagram of top stray light of the optical imaging lens;

[0027] Figure 5A Shows a schematic structural diagram of an optical imaging lens according to Embodiment 1 of the present application;

[0028] Figure 5B Shows a schematic structural diagram of an optical imaging lens according to Embodiment 2 of the present application;

[0029] Figures 6A to 6D Respectively show schematic diagrams of axial chromatic aberration curves, astigmatism curves, distortion curves, and longitudinal chromatic aberration curves of the optical imaging lens according to Embodiment 1 and Embodiment 2 of the present application;

[0030] Figure 7A Shows a schematic structural diagram of an optical imaging lens according to Embodiment 3 of the present application;

[0031] Figure 7B Shows a schematic structural diagram of an optical imaging lens according to Embodiment 4 of the present application;

[0032] Figures 8A to 8D Respectively show schematic diagrams of axial chromatic aberration curves, astigmatism curves, distortion curves, and longitudinal chromatic aberration curves of the optical imaging lens according to Embodiment 3 and Embodiment 4 of the present application;

[0033] Figure 9A Shows a schematic structural diagram of an optical imaging lens according to Embodiment 5 of the present application;

[0034] Figure 9B Shows a schematic structural diagram of an optical imaging lens according to Embodiment 6 of the present application;

[0035] Figures 10A to 10D Respectively show schematic diagrams of axial chromatic aberration curves, astigmatism curves, distortion curves, and longitudinal chromatic aberration curves of the optical imaging lens according to Embodiment 5 and Embodiment 6 of the present application;

[0036] Figure 11A Shows a schematic structural diagram of an optical imaging lens according to Embodiment 7 of the present application;

[0037] Figure 11B Shows a schematic structural diagram of an optical imaging lens according to Embodiment 8 of the present application; and

[0038] Figures 12A to 12D Respectively show schematic diagrams of axial chromatic aberration curves, astigmatism curves, distortion curves, and longitudinal chromatic aberration curves of the optical imaging lens according to Embodiment 7 and Embodiment 8 of the present application. Detailed implementation manners

[0039] To better understand the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application and do not limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0040] 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.

[0041] In the drawings, for the sake of clarity, the thickness, dimensions, and shape of the lens 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.

[0042] In this document, 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 close to the object to be photographed is called the object side surface of the lens, and the surface of each lens close to the imaging surface is called the image side surface of the lens.

[0043] It should also be understood that the terms "comprises", "comprising", "has", "including" and / or "containing", when used in this specification, indicate the presence of the stated features, elements and / or components, but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof. In addition, when an expression such as "at least one of..." appears after the list of listed features, it modifies the entire list of listed features rather than individual elements in the list. In addition, when describing 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.

[0044] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be understood that terms (such as those defined in 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.

[0045] 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 scope of the patent 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 group, the lens barrel, and the supporting member in each embodiment of the present application can be arbitrarily combined, and it is not limited that the lens group in one embodiment can only be combined with the lens barrel, the supporting member, etc. in that embodiment.

[0046] The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments. Figure 1 The structural layout diagram of the optical imaging lens and the schematic diagram of some parameters according to the embodiments of the present application are shown. As Figure 1 shown, the optical imaging lens according to the exemplary embodiment of the present application includes a lens barrel and a lens group and a supporting member group disposed in the lens barrel. The lens group may include six lenses having optical power, namely, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. These six lenses are arranged in sequence along the optical axis from the object side to the image side. An interval distance may be provided between any two adjacent lenses among the first lens to the sixth lens.

[0047] In the exemplary embodiment, the first lens may have a negative optical power, its object side may be convex, and its image side may be concave.

[0048] In the exemplary embodiment, the second lens may have a positive optical power or a negative optical power, its object side may be concave, and its image side may be convex.

[0049] In the exemplary embodiment, the third lens may have a positive optical power, its object side may be convex, and its image side may be convex.

[0050] In the exemplary embodiment, the fourth lens may have a negative optical power, and its image side may have a concave degree.

[0051] In the exemplary embodiment, the fifth lens may have a positive optical power, and its image side may be convex.

[0052] In the exemplary embodiment, the sixth lens may have a negative optical power, its object side may be convex, and its image side may be concave.

[0053] In an exemplary embodiment, the support member group of the optical imaging lens may include at least one of a first support member, a second support member, a third support member, a fourth support member, and a fifth support member. The first support member is disposed on the image side of the first lens and contacts the image side surface of the first lens. The second support member is disposed on the image side of the second lens and contacts the image side surface of the second lens. The third support member is disposed on the image side of the third lens and contacts the image side surface of the third lens. The fourth support member is disposed on the image side of the fourth lens and contacts the image side surface of the fourth lens. The fifth support member is disposed on the image side of the fifth lens and contacts the image side surface of the fifth lens. And at least one of the first support member, the second support member, the third support member, the fourth support member, and the fifth support member may contact the inner wall of the lens barrel. It should be understood that the number of support members is not specifically limited in this application. Any number of support members may be included between any two lenses, and the entire optical imaging lens may also include any number of support members. The support members help the optical imaging lens intercept redundant refracted and reflected light paths, reducing the generation of stray light and ghost images. Adding auxiliary supports between the support members and the lens barrel is beneficial to improving problems such as poor assembly stability and low performance yield caused by large step differences between lenses.

[0054] Those skilled in the art should understand that some parameters of the lenses that are often used in the art (such as the central thickness CT1 of the first lens on the optical axis) are not shown in Figure 1 and Figure 1 only exemplary shows some parameters of the lens barrel and the support members of an optical imaging lens of this application for better understanding of this application. As Figure 1As shown, EP01 represents the distance along the optical axis from the object-side end face of the lens barrel to the object-side surface of the first bearing member, CP1 represents the maximum thickness of the first bearing member along the optical axis direction, CP2 represents the maximum thickness of the second bearing member along the optical axis direction, EP50m represents the distance along the optical axis from the fifth bearing member to the image-side end face of the lens barrel, EP45 represents the distance along the optical axis from the image-side surface of the fourth bearing member to the object-side surface of the fifth bearing member, EP23 represents the distance along the optical axis from the image-side surface of the second bearing member to the object-side surface of the third bearing member, EP34 represents the distance along the optical axis from the image-side surface of the third bearing member to the object-side surface of the fourth bearing member, L represents the distance along the optical axis from the object-side end face of the lens barrel to the image-side surface, CP3 represents the distance along the optical axis from the object-side surface to the image-side surface of the third bearing member, CP4 represents the distance along the optical axis from the object-side surface to the image-side surface of the third bearing member, D0s represents the outer diameter of the object-side end face of the lens barrel, D3s represents the outer diameter of the object-side surface of the third bearing member, d0s represents the inner diameter of the object-side end face of the lens barrel, d2m represents the inner diameter of the image-side surface of the second bearing member, d1s represents the inner diameter of the object-side surface of the first bearing member, d3s represents the inner diameter of the object-side surface of the third bearing member, d4m represents the inner diameter of the image-side surface of the fourth bearing member, d5s represents the inner diameter of the object-side surface of the fifth bearing member, d5m represents the inner diameter of the object-side surface of the fifth bearing member, D4s represents the outer diameter of the object-side surface of the fourth bearing member, D4m represents the outer diameter of the image-side surface of the fourth bearing member, d0m represents the inner diameter of the image-side end face of the lens barrel, D0m represents the outer diameter of the image-side end face of the lens barrel.

[0055] In an exemplary embodiment, the optical imaging lens satisfies: 2.25 < CT5 / CT6 < 3.05; 6.25 < (d0m - d5s) / CT6 < 8.7, where CT5 is the central thickness of the fifth lens on the optical axis, CT6 is the central thickness of the sixth lens on the optical axis, d0m is the inner diameter of the image-side end face of the lens barrel, and d5s is the inner diameter of the object-side face of the fifth bearing member. The lenses in the related art often cannot take into account both high image height and less stray light. In this application, the lens group sequentially includes, from the object side to the image side along the optical axis, a first lens with a negative focal power, whose object-side face is convex and image-side face is concave; a second lens with a focal power, whose object-side face is concave and image-side face is convex; a third lens with a positive focal power, whose object-side face is convex and image-side face is convex; a fourth lens with a negative focal power, whose image-side face is concave; a fifth lens with a positive focal power, whose image-side face is convex; and a sixth lens with a negative focal power, whose object-side face is convex and image-side face is concave, and the optical imaging lens satisfies 2.25 < CT5 / CT6 < 3.05. The above optical imaging lens structure has high image quality, but between the fifth lens and the sixth lens, there will be more reflections when the light path passes through, resulting in too much stray light. In the optical imaging lens of this application, a fifth bearing member is provided on the image side of the fifth lens, and 6.25 < (d0m - d5s) / CT6 < 8.7 is satisfied, so that the stray light path can be blocked when passing through the fifth bearing member, and the stray light is controlled within a reasonable range, effectively controlling the reflection problem between the sixth lens and the fifth lens. Based on this, the optical imaging lens provided by the embodiment of this application can take into account both high image height and less stray light, meeting the higher imaging quality requirements of the market for lenses, especially for lenses of smart wearable devices.

[0056] Figure 2A Fig. shows a schematic structural diagram of an optical imaging lens satisfying CT5 / CT6 = 2.27 and (d0m - d5s) / CT6 = 10.6 according to an embodiment of the present application. Figure 2B Fig. shows Figure 2A a schematic diagram of stray light of the optical imaging lens. Figure 2C Fig. shows Figure 2A a schematic diagram of actual captured stray light of the optical imaging lens. In the figure, Q represents the test light source and M represents the stray light. As Figure 2A shown, when the optical imaging lens satisfies (d0m - d5s) / CT6 = 10.6, the fifth bearing member does not block the light path of the stray light M. As Figure 2B and Figure 2C shown, under this condition, the stray light of the optical imaging lens is more and more obvious. Figure 3A Fig. shows a schematic structural diagram of an optical imaging lens satisfying CT5 / CT6 = 2.27 and (d0m - d5s) / CT6 = 6.3 according to an embodiment of the present application. Figure 3B Fig. showsFigure 3A Schematic diagram of stray light of an optical imaging lens Figure 3C shows Figure 3A Schematic diagram of actual stray light of an optical imaging lens. In the figure, Q represents the test light source, and M represents stray light. As Figure 3A shown, when the optical imaging lens satisfies (d0m - d5s) / CT6 = 6.3, that is, when it satisfies 6.25 < (d0m - d5s) / CT6 < 8.7, the fifth supporting member blocks the optical path of the stray light M. As Figure 3B and Figure 3C shown, under this condition, the stray light of the optical imaging lens is slight, and the actual stray light is basically invisible Figure 4A shows a schematic structural diagram of an optical imaging lens that satisfies CT5 / CT6 = 2.27 and (d0m - d5s) / CT6 = 4.6 according to an embodiment of the present application Figure 4B shows Figure 4A Partial enlarged schematic diagram of part J of an optical imaging lens Figure 4C shows Figure 4A Schematic diagram of top stray light of an optical imaging lens. In the figure, M represents stray light, N represents newly added top stray light, and J represents a partial area at the top of the optical imaging lens. As Figure 4A and Figure 4B shown, when the optical imaging lens satisfies (d0m - d5s) / CT6 = 4.6, the fifth supporting member blocks the optical path of the stray light M, but newly added top stray light N appears in part J at the top of the fifth lens and the sixth lens. As Figure 4C shown, under this condition, a stray light spot appears at the top of the optical imaging lens

[0057] In an exemplary embodiment, the optical imaging lens satisfies: 2 < TD / f < 2.6; -2.1 < R3 / f < -1; -8.8 < R3 / EP12 < -4.38; 10 ≤ d2s / T23 < 43.2, where TD is the distance along the optical axis from the object side surface of the first lens to the image side surface of the sixth lens, f is the effective focal length of the optical imaging lens, R3 is the radius of curvature of the object side surface of the second lens, EP12 is the on-axis distance from the image side surface of the first bearing member to the object side surface of the second bearing member, d2s is the inner diameter of the object side surface of the second bearing member, and T23 is the distance along the optical axis from the image side surface of the second lens to the object side surface of the third lens. While the optical imaging lens structure in the above embodiment is compact and has good rendering quality, the surface shape of the second lens after lens assembly will be greatly deformed due to the radial pressure of the lens barrel, affecting the overall performance and stability of the lens. The optical imaging lens satisfies -8.8 < R3 / EP12 < -4.38 and 10 ≤ d2s / T23 < 43.2. The radial pressure of the lens barrel on the second lens in the optical imaging lens always acts on the paraxial position of the second lens. In the reliability experiment, especially in the performance test under high temperature and high humidity conditions, the degree of deformation of the surface shape of the second lens can be reduced, so that the overall effective focal length and back focal length of the optical imaging lens change less, thereby improving the stability of the optical imaging lens.

[0058] Table 1 shows that in the high-temperature and high-humidity experiment, for each experimental lens, under the conditions of a temperature of 65 °C and a humidity of 93% RH for different durations (48, 160, 500 hours), the changes in the effective focal length f, mechanical back focal length FFL, and on-axis MTF in the S and T directions at the central field of view, 0.4 field of view, 0.6 field of view, 0.8 field of view, and 1.0 field of view were tested. Taking the optical imaging lens of Example 1 in the following text as an example for testing, the following table (Table 1) lists the test results of R3 / EP12 and d2s / T23 of the optical imaging lens in three different cases when the optical imaging lens satisfies TD / f = 2.39 and R3 / f = -1.77 and remains unchanged. That is, it lists the effective focal length f, mechanical back focal length FFL, and the change results of on-axis MTF in the S direction and T direction of the optical imaging lens that satisfies R3 / EP12 = -4.58 and d2s / T23 = 42.27, the optical imaging lens that satisfies R3 / EP12 = -13.11 and d2s / T23 = 85.05, and the optical imaging lens that satisfies R3 / EP12 = -0.05 and d2s / T23 = 7.85. Among them, an optical imaging lens with a change in the effective focal length f and mechanical back focal length FFL within 3 μm is generally judged to be more powerful and more stable. As shown in Table 1, the optical imaging lens that satisfies R3 / EP12 = -4.58 and d2s / T23 = 42.27 meets this standard (that is, the standard that the change in the effective focal length f and mechanical back focal length FFL is within 3 μm): the change in its effective focal length f and mechanical back focal length FFL is within 3 μm, and the maximum MTF drop is 1.6; the optical imaging lens that satisfies R3 / EP12 = -13.11 and d2s / T23 = 85.05 does not meet this standard (that is, the standard that the change in the effective focal length f and mechanical back focal length FFL is within 3 μm): the change in its effective focal length f and mechanical back focal length FFL exceeds 3 - 6 μm, and the maximum MTF drop is 2.0; the optical imaging lens that satisfies R3 / EP12 = -0.05 and d2s / T23 = 7.85 does not meet this standard (that is, the standard that the change in the effective focal length f and mechanical back focal length FFL is within 3 μm): the change in its effective focal length f and mechanical back focal length FFL exceeds 3 - 5 μm, and the maximum MTF drop is 6.5. The above experimental data show that the optical imaging lens that satisfies R3 / EP12 = -4.58 and d2s / T23 = 42.27, that is, the optical imaging lens that satisfies the conditions of -8.8 < R3 / EP12 < -4.38 and 10 ≤ d2s / T23 < 43.2, has less deformation and stronger stability under the same experimental conditions.

[0059]

[0060]

[0061] Table 1

[0062] In an exemplary embodiment, the optical imaging lens satisfies: 2.1 < CT3 / CT4 < 3.2; 2.2 < (CT3 + CT5) / L < 2.75, where CT3 is the central thickness of the third lens on the optical axis, CT4 is the central thickness of the fourth lens on the optical axis, CT5 is the central thickness of the fifth lens on the optical axis, and L is the distance along the optical axis from the object-side end face to the image-side end face of the lens barrel. Since the object-side surfaces of the third lens and the fifth lens receive large-angle diffused light, the SLOP angles at the edges of the image-side surfaces of the third lens and the fifth lens must be large enough to converge the light and meet the requirements for the image height specification of the optical imaging lens. However, a lens with a large SLOP angle may have the problem of too low edge thickness at the effective diameter of the lens. By making the optical imaging lens satisfy the above conditional formula, it can ensure that the edge thicknesses of the third lens and the fifth lens are within a range that can be manufactured with a high yield. More specifically, the optical imaging lens may further satisfy: 2.6 < CT5 / T45 < 7.15, ensuring that the edge thicknesses of the third lens and the fifth lens are within a range that can be manufactured with a high yield.

[0063] In an exemplary embodiment, the optical imaging lens satisfies: 0.45 < (D0m - D0s) / TD < 0.6; 0.95 < L / TD < 1.15, where D0m is the outer diameter of the image-side end face of the lens barrel, D0s is the outer diameter of the object-side end face of the lens barrel, TD is the distance along the optical axis from the object-side surface of the first lens to the image-side surface of the sixth lens, and L is the distance along the optical axis from the object-side end face to the image-side end face of the lens barrel. By making the optical imaging lens satisfy the above conditions, it is beneficial to achieve good thickness uniformity of the lens barrel wall, meet the appearance control requirements, and ensure the stability of the reliability of the optical imaging lens. Specifically: The distance from the object-side end face to the image-side end face of the lens barrel (i.e., L, i.e., the length of the lens barrel) is mainly controlled by the TTL of the optical imaging lens and the module size. Under the condition of fixed TTL, the smaller L is, the larger the mechanical back focus of the optical imaging lens is, and the larger the debugging space for the optical imaging lens to be matched with the module is. And the outer diameter of the image-side end face of the lens barrel (i.e., D0m) is controlled by the size of the imaging surface of the optical imaging lens, and the outer diameter of the object-side end face of the lens barrel (i.e., D0s) is mainly controlled by the module window opening and the size of the assembly support area. These dimensions jointly affect the overall appearance style of the lens. Meeting the above conditions can make the thickness uniformity of the lens barrel wall good. And under the condition of fixed optical effective aperture of the optical imaging lens, the better the thickness uniformity of the lens barrel wall, the more stable the reliability of the lens. Therefore, under the condition of meeting the above conditions, the reliability of the optical imaging lens is stable.

[0064] In an exemplary embodiment, the optical imaging lens satisfies: 1.7 < (d0m - d5m) / EP50m < 2.6, where d0m is the inner diameter of the image-side end face of the lens barrel, d5m is the inner diameter of the object-side face of the fifth bearing member, and EP50m is the distance along the optical axis from the fifth bearing member to the image-side end face of the lens barrel. In the exemplary embodiment, the fifth bearing member is the last element of the optical imaging lens, which can control the range of light rays of the optical imaging lens, and its cooperation with the inner diameter of the image-side end face of the lens barrel should retain sufficient dispensing space. By making the optical imaging lens satisfy the above conditions, the specification requirements for the pushing-off force of the optical imaging lens can be met, and the stability of the mechanical reliability of the optical imaging lens can be improved, thereby improving the quality of the optical imaging lens.

[0065] In an exemplary embodiment, the optical imaging lens satisfies: -2.4 < CT5 / SAG52 < -1.73; 0.45 < EP45 / CT5 < 0.65, where CT5 is the central thickness of the fifth lens on the optical axis, SAG52 is the axial distance between the intersection of the image-side face of the fifth lens and the optical axis and the vertex of the effective radius of the image-side face of the fifth lens, and EP45 is the distance along the optical axis from the image-side face of the fourth bearing member to the object-side face of the fifth bearing member. In the exemplary embodiment, the fifth lens can be an aspherical glass lens. By making the optical imaging lens satisfy the above conditions, the surface accuracy of the fifth lens during die casting can be guaranteed, the risk of chipping of the fifth lens can be reduced, the forming yield rate of the fifth lens can be improved, and thus the production cost of the optical imaging lens can be reduced.

[0066] In an exemplary embodiment, the distance along the optical axis from the image-side face of the first lens to the object-side face of the second lens is the largest compared to the distances along the optical axis between any two adjacent lenses (e.g., the distance along the optical axis from the image-side face of the second lens to the object-side face of the third lens). The optical imaging lens satisfies: 0.7 < CT1 / ET1 ≤ 1.3; 0.4 < EP01 / (CT1 + T12) < 1.25, where CT1 is the central thickness of the first lens on the optical axis, ET1 is the edge thickness of the first lens in the optically effective region, EP01 is the distance along the optical axis from the object-side end face of the lens barrel to the object-side face of the first bearing member, and T12 is the distance along the optical axis from the image-side face of the first lens to the object-side face of the second lens. In the exemplary embodiment, the first lens has the function of converging light rays and can collect the light rays on its object side. By making the optical imaging lens satisfy the above conditions, it can be ensured that the first lens can collect light rays at a sufficient angle to meet the requirements for the field of view angle of the optical imaging lens; at the same time, without blocking the light rays of the optical imaging lens, it can meet the requirement for the sufficient physical strength of the lens barrel to withstand the pressure generated during lens assembly and use, thereby improving the assembly stability between the lens barrel and the first lens.

[0067] In an exemplary embodiment, the optical imaging lens satisfies: 0.35 < (d5s - d2m) / Tr5r10 ≤ 0.7, where d5s is the inner diameter of the object side surface of the fifth bearing member, d2m is the inner diameter of the image side surface of the second bearing member, and Tr5r10 is the distance along the optical axis from the object side surface of the third lens to the image side surface of the fifth lens. In the exemplary embodiment, the inner diameters of the second bearing member to the fifth bearing member gradually increase, that is, the inner diameter of the third bearing member is greater than that of the second bearing member, the inner diameter of the fourth bearing member is greater than that of the third bearing member, and the inner diameter of the fifth bearing member is greater than that of the fourth bearing member. By making the optical imaging lens satisfy the above conditions, the light rays incident from the aperture can be gently projected onto the imaging surface, avoiding the appearance of large-angle light rays. Thus, it can not only meet the requirements for the image height of the optical imaging lens but also reduce the stray light generated when large-angle light rays hit the flange structure of the optical imaging lens, so as to improve the imaging quality of the optical imaging lens.

[0068] In an exemplary embodiment, the optical imaging lens satisfies: -1.1 < R6 / f3 < -0.65; -9.47 < SAG32 / SAG31 < -2.85; 1.45 < CT3 / EP23 < 2.75, where R6 is the radius of curvature of the image side surface of the third lens, f3 is the effective focal length of the third lens, SAG32 is the axial distance between the intersection of the image side surface of the third lens and the optical axis and the vertex of the effective radius of the image side surface of the third lens, SAG31 is the axial distance between the intersection of the object side surface of the third lens and the optical axis and the vertex of the effective radius of the object side surface of the third lens, CT3 is the central thickness of the third lens on the optical axis, and EP23 is the distance along the optical axis from the image side surface of the second bearing member to the object side surface of the third bearing member. By making the optical imaging lens satisfy the above conditions and reasonably controlling the edge thickness of the third lens and the central thickness of the third lens on the optical axis, it can ensure good processing feasibility of the third lens and the accuracy of the bearing positions between the lenses of the assembled optical imaging lens, so that the optical parameters of the optical imaging lens meet the design requirements. In addition, it can also prevent the effective diameter surfaces between the lenses of the assembled optical imaging lens from interfering in the optical axis direction, avoiding the appearance problems and performance anomalies of the lenses, so as to improve the appearance and performance production yield of the optical imaging lens.

[0069] In an exemplary embodiment, the absolute value of the effective focal length of the third lens is less than the absolute value of the effective focal lengths of the other lenses, and the optical imaging lens satisfies: 0.75 < f3 / f < 1.05; 0.35 < d3s / D3s < 0.75, where f3 is the effective focal length of the third lens, f is the effective focal length of the optical imaging lens, d3s is the inner diameter of the object side of the third support member, and D3s is the outer diameter of the object side of the third support member. In an exemplary embodiment, the inner diameter and the outer diameter of the third support member reflect the length of the flange portion of the third lens, and the third lens may have a convex shape, resulting in a relatively small edge thickness of the effective diameter of the third lens. In an exemplary embodiment, the third lens may have the most convex shape compared to the other lenses. By making the optical imaging lens satisfy the above conditional expressions, it can be ensured that when the lens is molded, the injection molding compound will not cause the third lens to cool rapidly due to the too long length of the flange portion of the third part, thereby causing appearance problems such as edge flow marks on the third lens, so as to improve the quality of the third lens.

[0070] In an exemplary embodiment, the optical imaging lens satisfies: 0 ≤ SAG51 / CT5 < 0.2; 0.7 < d4m / f5 < 1.3, where SAG51 is the axial spacing distance between the intersection of the object side of the fifth lens and the optical axis and the vertex of the effective radius of the object side of the fifth lens, CT5 is the central thickness of the fifth lens on the optical axis, d4m is the inner diameter of the image side of the fourth support member, and f5 is the effective focal length of the fifth lens. In an exemplary embodiment, the fifth lens may be a glass lens. By making the optical imaging lens satisfy the above conditional expressions, the shape of the fifth lens is a plano-convex combination, so that the fifth lens can be molded by a die-casting process. Specifically, when die-casting, it can be molded by relying on the convex surface for positioning and pressing down the plane. This can not only ensure that the surface-to-surface eccentricity of the fifth lens is at a relatively small value, but also reduce the air entrapment phenomenon, improve the appearance yield of the fifth lens, and reduce the stray light risk of the optical imaging lens.

[0071] In an exemplary embodiment, the optical imaging lens satisfies: 0.1 < T34 / CT4 < 0.55; 0.45 < (D4s - D3s) / (T34 + CT4 + T45) < 1.38, where T34 is the axial interval distance from the image side of the third lens to the object side of the fourth lens, CT4 is the central thickness of the fourth lens on the optical axis, T45 is the axial interval distance from the image side of the fourth lens to the object side of the fifth lens, D4s is the outer diameter of the object side of the fourth support member, and D3s is the outer diameter of the object side of the third support member. In an exemplary embodiment, the fourth lens can be injection molded. By making the optical imaging lens satisfy the above conditional formula, the outer diameter size of the fourth lens can be effectively controlled, thereby effectively controlling the ratio of the outer diameter of the fourth lens to the central thickness of the fourth lens on the optical axis, which is beneficial to reducing the injection molding risk of the fourth lens. In addition, by controlling the outer diameter size of the fourth lens, it is beneficial to ensure the wall thickness uniformity of the lens barrel and reduce the risk of abnormal appearance of the lens barrel caused by uneven local wall thickness during injection molding.

[0072] In an exemplary embodiment, the inner wall of the lens barrel has a vertical axis step between the positions where the fourth support member and the fifth support member contact the inner wall of the lens barrel. The optical imaging lens satisfies: 6.54 < d5s / T56 < 76.1; 0.75 < (D5m - D4m) / EP45 < 2.1, where d5s is the inner diameter of the object side of the fifth support member, T56 is the axial interval distance from the image side of the fifth lens to the object side of the sixth lens, D5m is the outer diameter of the image side of the fifth support member, D4m is the outer diameter of the image side of the fourth support member, and EP45 is the axial interval distance from the image side of the fourth support member to the object side of the fifth support member. Since the light rays diverge at a large angle starting from the fourth lens, to ensure that the imaging surface meets the specification requirements, the effective diameters of the fifth lens and the sixth lens must also increase accordingly. By setting this vertical axis step, it can ensure that the fifth lens and the sixth lens are in a relatively stable support line with the previous lenses (such as the fourth lens), and at the same time, it can ensure that the fifth lens and the sixth lens have sufficient flange lengths to meet the design of the support position and the gate space, thereby improving the assembly stability of the optical imaging lens and the lens molding yield.

[0073] In an exemplary embodiment, the optical imaging lens satisfies: 0.4 ≤ (D5m - D4m) / (D0m - d0m) < 0.95, where D5m is the outer diameter of the image side surface of the fifth bearing member, D4m is the outer diameter of the image side surface of the fourth bearing member, D0m is the outer diameter of the image side end surface of the lens barrel, and d0m is the inner diameter of the image side end surface of the lens barrel. Under the condition that the wall thickness of the lens barrel is constant, the larger the image height of the optical imaging lens (i.e., ImgH), the larger the outer diameter of the rear end surface of the lens barrel (i.e., D0m), the larger the light transmission space, and the higher the imaging quality of the optical imaging lens. Making the optical imaging lens satisfy the above conditions is beneficial to ensuring the performance and appearance of the optical imaging lens and ensuring the matching degree between the optical imaging lens and the chip.

[0074] In an exemplary embodiment, the optical imaging lens satisfies: 1.33 < tan(FOV / 2) < 1.56; -2.7 < f1 / f < -1.9; 3.6 < (d0s - d1s) / CT1 < 6.45, where FOV is the maximum field of view angle of the optical imaging lens, f1 is the effective focal length of the first lens, f is the effective focal length of the optical imaging lens, d0s is the inner diameter of the object side end surface of the lens barrel, d1s is the inner diameter of the object side surface of the first bearing member, and CT1 is the central thickness of the first lens on the optical axis. Making the optical imaging lens satisfy the above conditions is beneficial to ensuring that the optical imaging lens can meet the normal shooting requirements. Specifically: the minimum inner diameter (i.e., ds) of the front end portion of the lens barrel facing the object to be photographed should be greater than the diameter of the sectional circle corresponding to the maximum field of view angle (i.e., FOV) at this position (the diameter size is 2tan(FOV / 2) × VP, where VP is the distance from this position to the convergence point of the maximum field of view angle (i.e., FOV) on the optical axis), and the outer diameter of the object end surface of the lens barrel should meet the assembly requirements of the optical imaging lens. Therefore, when designing the lens barrel, there should be no light blocking, and at the same time, it should be ensured that the width of the annular plane of the lens barrel close to the object surface to be photographed is not too small, that is, it can not only ensure normal shooting but also can be assembled normally.

[0075] In an exemplary embodiment, the optical imaging lens satisfies the following conditions: at least two lenses have a refractive index greater than 1.6, among which the refractive index of the fourth lens is greater than 1.6; and 0.5 < ET4 / (CP3 + EP34 + CP4) < 0.7, where ET4 is the edge thickness of the fourth lens in the optical effective area, CP3 is the distance along the optical axis from the object side surface to the image side surface of the third bearing member, EP34 is the distance along the optical axis from the image side surface of the third bearing member to the object side surface of the fourth bearing member, and CP4 is the distance along the optical axis from the object side surface to the image side surface of the fourth bearing member. By making the optical imaging lens satisfy the above conditions, the quality of the lens can be improved. Specifically, in the exemplary embodiment, the fourth lens has a structure that is thinner in the middle and thicker at both sides, and the image side surface of the third lens is convex. The thickness of the third bearing member can control the thickness ratio of the fourth lens, ensuring that the fourth lens has good processability. In the exemplary embodiment, the third bearing member can be an injection molded part. By controlling the thickness of the third bearing member within a reasonable range, the injection molding feasibility of the spacer can be ensured.

[0076] In an embodiment of the present application, at least one of the lens surfaces of each lens is an aspherical surface, that is, at least one of the surfaces from the object side surface of the first lens to the image side surface of the sixth lens is an aspherical surface. The characteristic of an aspherical lens is that the curvature changes continuously from the center of the lens to the periphery of the lens. Different from a spherical lens with a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has better curvature radius characteristics and has the advantages of improving distortion aberration and astigmatism aberration. After using an aspherical lens, it is possible to eliminate as much as possible the aberration that appears during imaging, thereby improving the imaging quality. Optionally, the object side surfaces and image side surfaces of all the lenses from the first lens to the sixth lens are aspherical surfaces.

[0077] 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. The light from the object sequentially passes through the surfaces of the optical lens group to the filter and / or the protective glass and finally forms an image on the imaging surface.

[0078] The optical imaging lens according to the above embodiments of the present application may employ multiple lenses, such as the six lenses described above. By reasonably distributing the optical power, surface shape of each lens, and the arrangement of each supporting member, etc., the span of each gear in the cooperation between the lens and the lens barrel is relatively uniform, enhancing the ability to converge light and improving the imaging quality of the wide-angle and large image plane optical imaging lens. However, those skilled in the art should understand that without departing from the technical solutions claimed in the present application, the number of lenses constituting the optical imaging lens can be changed to obtain the various results and advantages described in this specification. For example, although six lenses are described as an example in the embodiments, the optical imaging lens is not limited to including six lenses. If necessary, the optical imaging lens may also include other numbers of lenses.

[0079] The following further describes specific embodiments of the optical imaging lens applicable to the above embodiments with reference to the accompanying drawings.

[0080] Example 1

[0081] Figure 5A The structural schematic diagram of the optical imaging lens 1001 according to Embodiment 1 of the present application is shown. As Figure 5A shown, the optical imaging lens 1001 includes a lens barrel P0, lens groups E1 to E6, and a supporting member group P1 to P5. The optical imaging lens 1001 further includes a diaphragm STO (not shown) disposed between the first lens and the second lens.

[0082] As Figure 5A shown, the lens group of the optical imaging lens 1001 includes, in order 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. Among them, the object side surface S1 of the first lens E1 is a convex surface, and the image side surface S2 is a concave surface. The object side surface S3 of the second lens E2 is a concave surface, and the image side surface S4 is a convex surface. The object side surface S5 of the third lens E3 is a convex surface, and the image side surface S6 is a convex surface. The object side surface S7 of the fourth lens E4 is a concave surface, and the image side surface S8 is a concave surface. The object side surface S9 of the fifth lens E5 is a convex surface, and the image side surface S10 is a convex surface. The object side surface S11 of the sixth lens E6 is a convex surface, and the image side surface S12 is a concave surface. The optical imaging lens 1001 further includes a filter (not shown) for correcting color deviation, and the filter has an object side surface S13 (not shown) and an image side surface 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 S15 (not shown).

[0083] Table 2 shows the basic parameter table of the lens group of the optical imaging lens 1001 in Embodiment 1, where the units of the radius of curvature, thickness / distance, and effective focal length are all millimeters (mm).

[0084]

[0085]

[0086] Table 2

[0087] In Embodiment 1, 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:

[0088]

[0089] 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. Tables 3-1 and 3-2 give the high-order term coefficients A4, A6, A8, A 10 , A 12 , A 14 , A 16 , A 18 , A 20 .

[0090] Face number A4 A6 A8 A10 A12 S1 7.0846E-01 -1.1447E+00 2.8279E+00 -8.5975E+00 2.4660E+01 S2 8.5323E-01 2.7801E+00 -5.2356E+01 4.4406E+02 -2.2365E+03 S3 -1.0559E-01 -1.6246E+00 2.1557E+01 -6.9393E+01 -6.8445E+03 S4 -4.3927E-01 7.8128E-03 8.5383E+00 -4.3740E+01 -7.2981E+02 S5 5.9099E-02 -8.8105E-01 5.0333E+00 -2.7044E+01 9.8631E+01 S6 1.3650E-01 -1.8566E+00 1.6842E+01 -9.0689E+01 2.9821E+02 S7 -5.3012E-01 5.8801E-02 1.1153E+01 -6.8728E+01 2.1317E+02 S8 -1.9124E-01 -1.9617E-01 5.2245E+00 -2.4005E+01 5.8524E+01 S9 1.4039E-01 -6.5993E-01 3.6526E+00 -1.2436E+01 2.4883E+01 S10 -5.3235E-02 1.3503E+00 -8.0603E+00 2.7949E+01 -5.9997E+01 S11 1.8262E-01 -2.6139E+00 6.1773E+00 -9.5715E+00 1.1865E+01 S12 -2.2701E-01 -7.2851E-01 2.7114E+00 -4.6192E+00 4.6644E+00

[0091] Table 3-1

[0092] Face number A14 A16 A18 A20 S1 -5.0731E+01 6.3429E+01 -4.3656E+01 1.2771E+01 S2 7.1410E+03 -1.4567E+04 1.7384E+04 -9.6687E+03 S3 1.4803E+05 -1.3696E+06 6.1179E+06 -1.0799E+07 S4 1.1030E+04 -6.1159E+04 1.5784E+05 -1.5945E+05 S5 -1.4091E+02 -2.6117E+02 1.1296E+03 -1.0865E+03 S6 -6.0978E+02 7.6433E+02 -5.3922E+02 1.6379E+02 S7 -3.9412E+02 4.4358E+02 -2.8417E+02 8.0441E+01 S8 -8.5890E+01 7.6224E+01 -3.7857E+01 8.1095E+00 S9 -2.9615E+01 2.0842E+01 -8.0025E+00 1.2829E+00 S10 8.0024E+01 -6.4486E+01 2.8877E+01 -5.5328E+00 S11 -1.4214E+01 1.3390E+01 -7.2838E+00 1.6434E+00 S12 -2.9292E+00 1.1176E+00 -2.3501E-01 2.0606E-02

[0093] Table 3-2

[0094] Such as Figure 5AAs shown in the figure, the optical imaging lens 1001 further includes five supporting members, namely, the first supporting member P1, the second supporting member P2, the third supporting member P3, the fourth supporting member P4, and the fifth supporting member P5. Among them, the first supporting member P1 is placed on the image side of the first lens E1 and contacts the image side surface of the first lens E1; the second supporting member P2 is placed on the image side of the second lens E2 and contacts the image side surface of the second lens E2; the third supporting member P3 is placed on the image side of the third lens E3 and contacts the image side surface of the third lens E3; the fourth supporting member P4 is placed on the image side of the fourth lens E4 and contacts the image side surface of the fourth lens E4; the fifth supporting member P5 is placed on the image side of the fifth lens E5 and contacts the image side surface of the fifth lens E5. Moreover, the first supporting member P1, the second supporting member P2, the third supporting member P3, the fourth supporting member P4, and the fifth supporting member P5 contact the inner wall of the lens barrel P0. Table 4 shows the basic parameter table of the supporting members of the optical imaging lens 1001 and the lens barrel P0. The unit of each parameter in Table 4 is millimeter (mm). The above-mentioned supporting members can block the entry of excess external light, enable better support between the lens and the lens barrel, and enhance the structural stability of the optical imaging lens 1001.

[0095] Parameter d1s d2s d2m d3s D3s d4m D4s D4m d5s D5m EP12 Value 0.69 1.27 1.27 1.8 2.49 1.95 2.93 2.93 2.04 3.54 0.36 Parameter EP23 CP3 EP34 CP4 EP45 L EP50 d0s d0m D0s D0m Value 0.4 0.3 0.45 0.02 0.34 3.29 0.8 2.2 3.84 2.99 4.76

[0096] Table 4

[0097] Example 2

[0098] Figure 5B Fig. shows a schematic structural diagram of the optical imaging lens 1002 according to Embodiment 2 of the present application. In this embodiment and the following embodiments, for the sake of simplicity, some descriptions similar to those in Embodiment 1 will be omitted.

[0099] As Figure 5B shown, the optical imaging lens 1002 includes a lens barrel P0, a lens group E1~E6, and a supporting member group P1~P5. The optical imaging lens 1002 further includes a diaphragm STO (not shown) disposed between the first lens and the second lens. The lens group of the optical imaging lens 1002 is exactly the same as that of the optical imaging lens 1001 in Embodiment 1. For its basic parameters, please refer to Tables 1 to 3-2, which will not be elaborated here.

[0100] As Figure 5BAs shown, the optical imaging lens 1002 further includes five supporting members, namely a first supporting member P1, a second supporting member P2, a third supporting member P3, a fourth supporting member P4, and a fifth supporting member P5. Among them, the first supporting member P1 is placed on the image side of the first lens E1 and contacts the image side surface of the first lens E1; the second supporting member P2 is placed on the image side of the second lens E2 and contacts the image side surface of the second lens E2; the third supporting member P3 is placed on the image side of the third lens E3 and contacts the image side surface of the third lens E3; the fourth supporting member P4 is placed on the image side of the fourth lens E4 and contacts the image side surface of the fourth lens E4; the fifth supporting member P5 is placed on the image side of the fifth lens E5 and contacts the image side surface of the fifth lens E5. Moreover, the first supporting member P1, the second supporting member P2, the third supporting member P3, the fourth supporting member P4, and the fifth supporting member P5 contact the inner wall of the lens barrel P0. Table 5 shows the basic parameter table of the supporting members of the optical imaging lens 1002 and the lens barrel P0, and the unit of each parameter in Table 5 is millimeter (mm). The above-mentioned supporting members can block the entry of excess external light, enable better support between the lens and the lens barrel, and enhance the structural stability of the optical imaging lens 1002.

[0101] Parameter d1s d2s d2m d3s D3s d4m D4s D4m d5s D5m EP12 Value 0.69 1.29 1.29 1.8 2.59 1.93 3.03 3.03 2.07 3.64 0.36 Parameter EP23 CP3 EP34 CP4 EP45 L EP50 d0s d0m D0s D0m Value 0.39 0.28 0.48 0.02 0.31 3.43 0.91 2.29 4.01 3.11 4.68

[0102] Table 5

[0103] Figure 6A shows the axial chromatic aberration curves of the optical imaging lens 1001 of Example 1 and the optical imaging lens 1002 of Example 2. Figure 6B shows the astigmatism curves of the optical imaging lens 1001 of Example 1 and the optical imaging lens 1002 of Example 2. Figure 6C shows the distortion curves of the optical imaging lens 1001 of Example 1 and the optical imaging lens 1002 of Example 2. Figure 6D shows the lateral chromatic aberration curves of the optical imaging lens 1001 of Example 1 and the optical imaging lens 1002 of Example 2. According to Figures 6A to 6D it can be known that the optical imaging lenses 1001 and 1002 given in Example 1 and Example 2 can achieve good imaging quality.

[0104] Example 3

[0105] Figure 7A shows the structural schematic diagram of the optical imaging lens 2001 according to Embodiment 3 of the present application. As Figure 7A shown, the optical imaging lens 2001 includes a lens barrel P0, a lens group E1 - E6, and a supporting member group P1 - P5. The optical imaging lens 2001 further includes a diaphragm STO (not shown) disposed between the second lens and the third lens.

[0106] As Figure 7AAs shown, the lens group of the optical imaging lens 2001 includes, in order 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. Among them, the object side surface S1 of the first lens E1 is a convex surface, and the image side surface S2 is a concave surface. The object side surface S3 of the second lens E2 is a concave surface, and the image side surface S4 is a convex surface. The object side surface S5 of the third lens E3 is a convex surface, and the image side surface S6 is a convex surface. The object side surface S7 of the fourth lens E4 is a convex surface, and the image side surface S8 is a concave surface. The object side surface S9 of the fifth lens E5 is a concave surface, and the image side surface S10 is a convex surface. The object side surface S11 of the sixth lens E6 is a convex surface, and the image side surface S12 is a concave surface. The optical imaging lens 2001 further includes a filter (not shown) for correcting color deviation, and the filter has an object side surface S13 (not shown) and an image side surface S14 (not shown). Light from the object sequentially passes through the surfaces S1 to S14 and finally forms an image on the imaging surface S15 (not shown).

[0107] Table 6 shows the basic parameter table of the lens group of the optical imaging lens 2001 in Embodiment 3, where the units of the radius of curvature, thickness / distance, and effective focal length are all millimeters (mm). Tables 7-1 and 7-2 show the high-order term coefficients of the aspherical mirror surfaces that can be used in Embodiment 3, and each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0108]

[0109] Table 6

[0110]

[0111]

[0112] Table 7-1

[0113] Face number A14 A16 A18 A20 S1 -4.6700E+01 6.2450E+01 -4.5632E+01 1.3494E+01 S2 4.1220E+04 -1.2426E+05 2.1204E+05 -1.5662E+05 S3 5.6038E+03 -1.5442E+04 2.2898E+04 -1.3419E+04 S4 -7.3567E+05 4.0655E+06 -1.2505E+07 1.6359E+07 S5 -1.3019E+04 1.4278E+04 4.4818E+04 -1.1515E+05 S6 -6.2709E+02 2.6348E+03 -3.9982E+03 2.2396E+03 S7 4.0491E+02 3.1233E+02 -9.7384E+02 5.8629E+02 S8 -3.0277E+02 4.7250E+02 -3.7801E+02 1.2315E+02 S9 -1.4393E+02 1.1811E+02 -5.3412E+01 1.0261E+01 S10 1.5318E+02 -1.2803E+02 5.6688E+01 -1.0374E+01 S11 -1.3645E+02 9.5269E+01 -3.8575E+01 6.7901E+00 S12 -2.6126E+00 1.1910E+00 -2.9910E-01 3.2014E-02

[0114] Table 7-2

[0115] As Figure 7AAs shown in the figure, the optical imaging lens 2001 further includes five supporting members, namely, the first supporting member P1, the second supporting member P2, the third supporting member P3, the fourth supporting member P4, and the fifth supporting member P5. Among them, the first supporting member P1 is placed on the image side of the first lens E1 and contacts the image side surface of the first lens E1; the second supporting member P2 is placed on the image side of the second lens E2 and contacts the image side surface of the second lens E2; the third supporting member P3 is placed on the image side of the third lens E3 and contacts the image side surface of the third lens E3; the fourth supporting member P4 is placed on the image side of the fourth lens E4 and contacts the image side surface of the fourth lens E4; the fifth supporting member P5 is placed on the image side of the fifth lens E5 and contacts the image side surface of the fifth lens E5. Moreover, the first supporting member P1, the second supporting member P2, the third supporting member P3, the fourth supporting member P4, and the fifth supporting member P5 are in contact with the inner wall of the lens barrel P0. Table 8 shows the basic parameter table of the supporting members of the optical imaging lens 2001 and the lens barrel P0, and the unit of each parameter in Table 8 is millimeter (mm). The above-mentioned supporting members can block the excess external light from entering, enable better support between the lens and the lens barrel, and enhance the structural stability of the optical imaging lens 2001.

[0116] Parameter d1s d2s d2m d3s D3s d4m D4s D4m d5s D5m EP12 Value 1.11 0.75 0.75 1.86 2.64 1.93 2.9 2.9 2.14 3.61 0.33 Parameter EP23 CP3 EP34 CP4 EP45 L EP50 d0s d0m D0s D0m Value 0.54 0.3 0.49 0.02 0.34 3.29 0.87 2.26 3.91 3.06 4.83

[0117] Table 8

[0118] Example 4

[0119] Figure 7B Fig. shows a schematic structural diagram of the optical imaging lens 2002 according to Embodiment 4 of the present application. In this embodiment and the following embodiments, for the sake of simplicity, some descriptions similar to those in Embodiment 3 will be omitted.

[0120] As Figure 7B shown in the figure, the optical imaging lens 2002 includes a lens barrel P0, a lens group E1~E6, and a supporting member group P1~P5. The optical imaging lens 2002 further includes a diaphragm STO (not shown) disposed between the second lens and the third lens. The lens group of the optical imaging lens 2002 is exactly the same as that of the optical imaging lens 2001 in Embodiment 3, and its basic parameters are shown in detail in Tables 6 to 7-2, which will not be elaborated here.

[0121] As Figure 7BAs shown in the figure, the optical imaging lens 2002 further includes five supporting members, namely, a first supporting member P1, a second supporting member P2, a third supporting member P3, a fourth supporting member P4, and a fifth supporting member P5. Among them, the first supporting member P1 is placed on the image side of the first lens E1 and contacts the image side surface of the first lens E1; the second supporting member P2 is placed on the image side of the second lens E2 and contacts the image side surface of the second lens E2; the third supporting member P3 is placed on the image side of the third lens E3 and contacts the image side surface of the third lens E3; the fourth supporting member P4 is placed on the image side of the fourth lens E4 and contacts the image side surface of the fourth lens E4; the fifth supporting member P5 is placed on the image side of the fifth lens E5 and contacts the image side surface of the fifth lens E5. Moreover, the first supporting member P1, the second supporting member P2, the third supporting member P3, the fourth supporting member P4, and the fifth supporting member P5 are in contact with the inner wall of the lens barrel P0. Table 9 shows the basic parameter table of the supporting members of the optical imaging lens 2002 and the lens barrel P0. The unit of each parameter in Table 9 is millimeter (mm). The above-mentioned supporting members can block the entry of excess external light, enable better support between the lens and the lens barrel, and enhance the structural stability of the optical imaging lens 2002.

[0122] Parameter d1s d2s d2m d3s D3s d4m D4s D4m d5s D5m EP12 Value 1.09 0.75 0.75 1.85 2.74 1.91 3.09 3.09 2.16 3.71 0.33 Parameter EP23 CP3 EP34 CP4 EP45 L EP50 d0s d0m D0s D0m Value 0.51 0.32 0.51 0.02 0.35 3.34 0.89 2.26 4.04 3.06 4.83

[0123] Table 9

[0124] Figure 8A shows the axial chromatic aberration curves of the optical imaging lens 2001 of Embodiment 3 and the optical imaging lens 2002 of Embodiment 4. Figure 8B shows the astigmatism curves of the optical imaging lens 2001 of Embodiment 3 and the optical imaging lens 2002 of Embodiment 4. Figure 8C shows the distortion curves of the optical imaging lens 2001 of Embodiment 3 and the optical imaging lens 2002 of Embodiment 4. Figure 8D shows the longitudinal chromatic aberration curves of the optical imaging lens 2001 of Embodiment 3 and the optical imaging lens 2002 of Embodiment 4. According to Figures 8A to 8D it can be known that the optical imaging lenses 2001 and 2002 given in Embodiment 3 and Embodiment 4 can achieve good imaging quality.

[0125] Example 5

[0126] Figure 9A shows a schematic structural diagram of the optical imaging lens 3001 according to Embodiment 5 of the present application. As Figure 9A shown, the optical imaging lens 3001 includes a lens barrel P0, a lens group E1 - E6, and a supporting member group P1 - P5. The optical imaging lens 3001 further includes a diaphragm STO (not shown) disposed between the second lens and the third lens.

[0127] As Figure 9AAs shown in the figure, the lens group of the optical imaging lens 3001 includes, in order 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. Among them, the object side surface S1 of the first lens E1 is a convex surface, and the image side surface S2 is a concave surface. The object side surface S3 of the second lens E2 is a concave surface, and the image side surface S4 is a convex surface. The object side surface S5 of the third lens E3 is a convex surface, and the image side surface S6 is a convex surface. The object side surface S7 of the fourth lens E4 is a convex surface, and the image side surface S8 is a concave surface. The object side surface S9 of the fifth lens E5 is a concave surface, and the image side surface S10 is a convex surface. The object side surface S11 of the sixth lens E6 is a convex surface, and the image side surface S12 is a concave surface. The optical imaging lens 3001 further includes a filter (not shown) for correcting color deviation, and the filter has an object side surface S13 (not shown) and an image side surface S14 (not shown). Light from the object sequentially passes through the surfaces S1 to S14 and finally forms an image on the imaging surface S15 (not shown).

[0128] Table 10 shows the basic parameter table of the lens group of the optical imaging lens 3001 in Embodiment 5. Among them, the units of the radius of curvature, thickness / distance, and effective focal length are all millimeters (mm). Tables 11-1 and 11-2 show the high-order term coefficients that can be used for each aspherical mirror surface in Embodiment 5. Among them, each aspherical surface type can be defined by the formula (1) given in Embodiment 1 above.

[0129]

[0130]

[0131] Table 10

[0132] Face number A4 A6 A8 A10 A12 S1 9.5915E-01 -1.2586E+00 3.0425E-01 9.5096E+00 -3.5382E+01 S2 1.3757E+00 9.2033E-01 -1.6914E+00 -2.5918E+02 4.0093E+03 S3 2.4161E-01 -3.6997E+00 5.3829E+01 -7.0764E+02 5.9246E+03 S4 3.3353E-01 1.3957E+00 -5.2589E+01 6.3589E+02 -6.3030E+03 S5 1.0211E+00 -8.8108E+00 1.3706E+01 4.8012E+02 -7.0371E+03 S6 -1.3675E-01 -1.1550E+00 4.4400E+01 -5.4879E+02 3.7164E+03 S7 -7.6178E-01 1.1734E+00 9.3034E+00 -1.2747E+02 7.1276E+02 S8 2.1892E-01 -5.8539E+00 4.8585E+01 -2.4268E+02 8.1021E+02 S9 -4.3311E-02 -1.3935E+00 5.6726E+00 1.6157E+01 -1.7596E+02 S10 -1.0058E-01 4.9991E-01 -3.8583E+00 1.8624E+01 -5.2639E+01 S11 5.4000E-01 -8.6748E+00 4.0090E+01 -1.2140E+02 2.4754E+02 S12 -9.9208E-01 9.9494E-01 4.5248E-01 -3.5993E+00 6.2963E+00

[0133] Table 11-1

[0134] Face number A14 A16 A18 A20 S1 6.6455E+01 -7.1092E+01 4.0369E+01 -9.4346E+00 S2 -2.6283E+04 9.1607E+04 -1.6444E+05 1.1665E+05 S3 -3.0855E+04 9.7756E+04 -1.7224E+05 1.2924E+05 S4 5.9453E+04 -3.9165E+05 1.4233E+06 -2.1037E+06 S5 5.0231E+04 -2.0418E+05 4.4879E+05 -4.1264E+05 S6 -1.5239E+04 3.8013E+04 -5.3319E+04 3.2489E+04 S7 -2.2201E+03 4.1094E+03 -4.2518E+03 1.8946E+03 S8 -1.7908E+03 2.5513E+03 -2.1458E+03 8.1132E+02 S9 5.8387E+02 -9.7473E+02 8.2114E+02 -2.7725E+02 S10 9.2496E+01 -1.0104E+02 6.3652E+01 -1.7464E+01 S11 -3.3417E+02 2.8310E+02 -1.3534E+02 2.7811E+01 S12 -6.1101E+00 3.5129E+00 -1.1155E+00 1.5071E-01

[0135] Table 11-2

[0136] As Figure 9AAs shown in the figure, the optical imaging lens 3001 further includes five supporting members, namely, the first supporting member P1, the second supporting member P2, the third supporting member P3, the fourth supporting member P4, and the fifth supporting member P5. Among them, the first supporting member P1 is placed on the image side of the first lens E1 and contacts the image side surface of the first lens E1; the second supporting member P2 is placed on the image side of the second lens E2 and contacts the image side surface of the second lens E2; the third supporting member P3 is placed on the image side of the third lens E3 and contacts the image side surface of the third lens E3; the fourth supporting member P4 is placed on the image side of the fourth lens E4 and contacts the image side surface of the fourth lens E4; the fifth supporting member P5 is placed on the image side of the fifth lens E5 and contacts the image side surface of the fifth lens E5. Moreover, the first supporting member P1, the second supporting member P2, the third supporting member P3, the fourth supporting member P4, and the fifth supporting member P5 are in contact with the inner wall of the lens barrel P0. Table 12 shows the basic parameter table of the supporting members of the optical imaging lens 3001 and the lens barrel P0, and the unit of each parameter in Table 12 is millimeter (mm). The above-mentioned supporting members can block the entry of excess external light, enable better support between the lens and the lens barrel, and enhance the structural stability of the optical imaging lens 3001.

[0137] Parameter d1s d2s d2m d3s D3s d4m D4s D4m d5s D5m EP12 Value 1.27 0.81 0.81 1.23 2.78 1.48 2.98 2.98 1.88 3.59 0.29 Parameter EP23 CP3 EP34 CP4 EP45 L EP50 d0s d0m D0s D0m Value 0.28 0.02 0.65 0.02 0.42 3.37 1.09 2.45 4.01 3.25 4.82

[0138] Table 12

[0139] Example 6

[0140] Figure 9B Fig. shows a schematic structural diagram of the optical imaging lens 3002 according to Embodiment 6 of the present application. In this embodiment and the following embodiments, for the sake of simplicity, some descriptions similar to those in Embodiment 5 will be omitted.

[0141] As Figure 9B shown in the figure, the optical imaging lens 3002 includes a lens barrel P0, a lens group E1~E6, and a supporting member group P1~P5. The optical imaging lens 3002 further includes a diaphragm STO (not shown) disposed between the second lens and the third lens. The lens group of the optical imaging lens 3002 is exactly the same as that of the optical imaging lens 3001 in Embodiment 5, and its basic parameters are shown in detail in Tables 10 to 11-2 and will not be elaborated here.

[0142] As Figure 9BAs shown, the optical imaging lens 3002 further includes five supporting members, namely, a first supporting member P1, a second supporting member P2, a third supporting member P3, a fourth supporting member P4, and a fifth supporting member P5. Among them, the first supporting member P1 is placed on the image side of the first lens E1 and contacts the image side surface of the first lens E1; the second supporting member P2 is placed on the image side of the second lens E2 and contacts the image side surface of the second lens E2; the third supporting member P3 is placed on the image side of the third lens E3 and contacts the image side surface of the third lens E3; the fourth supporting member P4 is placed on the image side of the fourth lens E4 and contacts the image side surface of the fourth lens E4; the fifth supporting member P5 is placed on the image side of the fifth lens E5 and contacts the image side surface of the fifth lens E5. Moreover, the first supporting member P1, the second supporting member P2, the third supporting member P3, the fourth supporting member P4, and the fifth supporting member P5 contact the inner wall of the lens barrel P0. Table 13 shows the basic parameter table of the supporting members of the optical imaging lens 3002 and the lens barrel P0, and the unit of each parameter in Table 13 is millimeter (mm). The above-mentioned supporting members can block excess external light from entering, enable better support between the lens and the lens barrel, and enhance the structural stability of the optical imaging lens 3002.

[0143] Parameter d1s d2s d2m d3s D3s d4m D4s D4m d5s D5m EP12 Value 1.26 0.8 0.8 1.23 3.11 1.48 3.31 3.31 1.88 3.92 0.27 Parameter EP23 CP3 EP34 CP4 EP45 L EP50 d0s d0m D0s D0m Value 0.31 0.02 0.63 0.02 0.45 3.22 0.94 2.52 4.28 3.41 5.13

[0144] Table 13

[0145] Figure 10A shows the axial chromatic aberration curves of the optical imaging lens 3001 of Example 5 and the optical imaging lens 3002 of Example 6. Figure 10B shows the astigmatism curves of the optical imaging lens 3001 of Example 5 and the optical imaging lens 3002 of Example 6. Figure 10C shows the distortion curves of the optical imaging lens 3001 of Example 5 and the optical imaging lens 3002 of Example 6. Figure 10D shows the longitudinal chromatic aberration curves of the optical imaging lens 3001 of Example 5 and the optical imaging lens 3002 of Example 6. According to Figures 10A to 10D it can be known that the optical imaging lenses 3001 and 3002 given in Example 5 and Example 6 can achieve good imaging quality.

[0146] Example 7

[0147] Figure 11A shows a schematic structural diagram of the optical imaging lens 4001 according to Embodiment 7 of the present application. As Figure 11A shown, the optical imaging lens 4001 includes a lens barrel P0, a lens group E1 - E6, and a supporting member group P1 - P5. The optical imaging lens 4001 further includes a diaphragm STO (not shown) disposed between the second lens and the third lens.

[0148] As Figure 11AAs shown, the lens group of the optical imaging lens 4001 includes, in order 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. Among them, the object side surface S1 of the first lens E1 is convex, and the image side surface S2 is concave. The object side surface S3 of the second lens E2 is concave, and the image side surface S4 is convex. The object side surface S5 of the third lens E3 is convex, and the image side surface S6 is convex. The object side surface S7 of the fourth lens E4 is concave, and the image side surface S8 is concave. The object side surface S9 of the fifth lens E5 is concave, and the image side surface S10 is convex. The object side surface S11 of the sixth lens E6 is convex, and the image side surface S12 is concave. The optical imaging lens 4001 further includes a filter (not shown) for correcting color deviation, and the filter has an object side surface S13 (not shown) and an image side surface S14 (not shown). Light from an object sequentially passes through the surfaces S1 to S14 and finally forms an image on an imaging surface S15 (not shown).

[0149] Table 14 shows the basic parameter table of the lens group of the optical imaging lens 4001 in Embodiment 7, where the units of the radius of curvature, thickness / distance, and effective focal length are all millimeters (mm). Tables 15-1 and 15-2 show the higher-order term coefficients that can be used for each aspherical mirror surface in Embodiment 7, where each aspherical surface type can be defined by the formula (1) given in the above Embodiment 1.

[0150]

[0151] Table 14

[0152] Face number A4 A6 A8 A10 A12 S1 6.6649E-01 -1.9294E+00 4.6796E+00 -1.3045E+01 2.1810E+01 S2 1.2855E+00 -2.8245E+00 6.2574E+00 -1.4434E+01 -1.9171E+02 S3 3.8452E-02 5.6630E-01 -1.4215E+01 9.5191E+01 -4.7977E+02 S4 2.8853E-01 -4.2091E+00 3.3339E+01 -2.1243E+02 1.0127E+03 S5 1.9057E-01 -3.7714E+00 2.0820E+01 -7.3686E+01 1.1492E+02 S6 -4.1164E-01 2.2697E+00 -5.2087E+00 -2.6585E+01 1.7566E+02 S7 -1.7658E+00 7.2735E+00 -1.1784E+01 -3.4031E+01 1.7298E+02 S8 -1.2434E+00 2.8489E+00 -9.1654E-01 -6.2239E+00 5.9188E+00 S9 6.4491E-01 -4.6643E+00 1.4788E+01 -1.7607E+01 -3.1827E+00 S10 5.0539E-01 -2.1847E+00 6.2723E+00 -1.1749E+01 1.3794E+01 S11 6.2633E-01 -6.7927E+00 2.0876E+01 -4.3513E+01 6.5040E+01 S12 -5.4548E-01 -8.0431E-01 4.1585E+00 -7.8958E+00 8.8900E+00

[0153] Table 15-1

[0154]

[0155]

[0156] Table 15-2

[0157] As Figure 11AAs shown, the optical imaging lens 4001 further includes five supporting members, namely, a first supporting member P1, a second supporting member P2, a third supporting member P3, a fourth supporting member P4, and a fifth supporting member P5. Among them, the first supporting member P1 is placed on the image side of the first lens E1 and contacts the image side surface of the first lens E1; the second supporting member P2 is placed on the image side of the second lens E2 and contacts the image side surface of the second lens E2; the third supporting member P3 is placed on the image side of the third lens E3 and contacts the image side surface of the third lens E3; the fourth supporting member P4 is placed on the image side of the fourth lens E4 and contacts the image side surface of the fourth lens E4; the fifth supporting member P5 is placed on the image side of the fifth lens E5 and contacts the image side surface of the fifth lens E5. Moreover, the first supporting member P1, the second supporting member P2, the third supporting member P3, the fourth supporting member P4, and the fifth supporting member P5 contact the inner wall of the lens barrel P0. Table 16 shows the basic parameter table of the supporting members of the optical imaging lens 4001 and the lens barrel P0. The unit of each parameter in Table 16 is millimeter (mm). The above-mentioned supporting members can block the excess external light from entering, enable better support between the lens and the lens barrel, and enhance the structural stability of the optical imaging lens 4001.

[0158] Parameter d1s d2s d2m d3s D3s d4m D4s D4m d5s D5m EP12 Value 1.25 1.33 1.43 1.44 2.49 1.61 3 3 2.15 3.31 0.39 Parameter EP23 CP3 EP34 CP4 EP45 L EP50 d0s d0m D0s D0m Value 0.23 0.28 0.47 0.02 0.4 3.53 0.57 2.15 3.79 2.92 4.56

[0159] Table 16

[0160] Example 8

[0161] Figure 11B Fig. shows a schematic structural diagram of the optical imaging lens 4002 according to Embodiment 8 of the present application. In this embodiment and the following embodiments, for the sake of simplicity, some descriptions similar to those in Embodiment 7 will be omitted.

[0162] As Figure 11B shown, the optical imaging lens 4002 includes a lens barrel P0, a lens group E1~E6, and a supporting member group P1~P5. The optical imaging lens 4002 further includes a diaphragm STO (not shown) disposed between the second lens and the third lens. The lens group of the optical imaging lens 4002 is exactly the same as that of the optical imaging lens 4001 in Embodiment 7. For its basic parameters, please refer to Tables 14 to 15-2, which will not be elaborated here.

[0163] As Figure 11BAs shown, the optical imaging lens 4002 further includes five supporting members, namely a first supporting member P1, a second supporting member P2, a third supporting member P3, a fourth supporting member P4, and a fifth supporting member P5. Among them, the first supporting member P1 is placed on the image side of the first lens E1 and contacts the image side surface of the first lens E1; the second supporting member P2 is placed on the image side of the second lens E2 and contacts the image side surface of the second lens E2; the third supporting member P3 is placed on the image side of the third lens E3 and contacts the image side surface of the third lens E3; the fourth supporting member P4 is placed on the image side of the fourth lens E4 and contacts the image side surface of the fourth lens E4; the fifth supporting member P5 is placed on the image side of the fifth lens E5 and contacts the image side surface of the fifth lens E5. Moreover, the first supporting member P1, the second supporting member P2, the third supporting member P3, the fourth supporting member P4, and the fifth supporting member P5 contact the inner wall of the lens barrel P0. Table 17 shows the basic parameter table of the supporting members of the optical imaging lens 4002 and the lens barrel P0, and the unit of each parameter in Table 17 is millimeter (mm). The above-mentioned supporting members can block excessive external light from entering, enable better support between the lens and the lens barrel, and enhance the structural stability of the optical imaging lens 4002.

[0164] Parameter d1s d2s d2m d3s D3s d4m[[ ​ ​ ​ ​ ​ ​ 1.23 1.33 1.53 1.41 2.57 1.61 3.27 3.27 2.28 3.61 0.36 ​ ​ ​ ​ ​ ​ L ​ ​ ​ ​ ​ ​ 0.22 0.28 0.48 0.02 0.4 3.64 0.78 2.32 4.09 3.43 4.87

[0165] Table 17

[0166] ​ shows the axial chromatic aberration curves of the optical imaging lens 4001 of Example 7 and the optical imaging lens 4002 of Example 8. Figure 12B shows the astigmatism curves of the optical imaging lens 4001 of Example 7 and the optical imaging lens 4002 of Example 8. Figure 12C shows the distortion curves of the optical imaging lens 4001 of Example 7 and the optical imaging lens 4002 of Example 8. Figure 12D shows the lateral chromatic aberration curves of the optical imaging lens 4001 of Example 7 and the optical imaging lens 4002 of Example 8. According to Figures 12A to 12D it can be known that the optical imaging lenses 4001 and 4002 given in Example 7 and Example 8 can achieve good imaging quality.

[0167] Table 18 shows the values of the maximum field of view FOV (°), f-number Fno, effective focal length f (mm), effective focal lengths f1 to f6 (mm) of the first lens to the sixth lens, the axial spacing distance SAG31 (mm) between the intersection of the object side surface of the third lens and the optical axis and the vertex of the effective radius of the object side surface of the third lens, the axial spacing distance SAG32 (mm) between the intersection of the image side surface of the third lens and the optical axis and the vertex of the effective radius of the image side surface of the third lens, the axial spacing distance SAG51 (mm) between the intersection of the object side surface of the fifth lens and the optical axis and the vertex of the effective radius of the object side surface of the fifth lens, the axial spacing distance SAG52 (mm) between the intersection of the image side surface of the fifth lens and the optical axis and the vertex of the effective radius of the image side surface of the fifth lens, the edge thickness ET1 (mm) of the first lens in the optically effective region, and the edge thickness ET4 (mm) of the fourth lens in the optically effective region for the optical imaging lenses of Examples 1 to 8.

[0168] Parameter 1 2 3 4 5 6 7 8 FOV (°) 113.08 113.08 112.06 112.06 111.85 111.85 108.25 108.25 Fno 2.20 2.20 2.20 2.20 2.19 2.19 2.19 2.19 f (mm) 1.35 1.35 1.38 1.38 1.31 1.31 1.53 1.53 f1 (mm) -3.16 -3.16 -3.69 -3.69 -2.57 -2.57 -3.27 -3.27 f2 (mm) 373.41 373.41 -6.88 -6.88 -10.78 -10.78 28.28 28.28 f3 (mm) 1.28 1.28 1.14 1.14 1.34 1.34 1.15 1.15 f4 (mm) -2.13 -2.13 -2.80 -2.80 -4.24 -4.24 -1.54 -1.54 f5 (mm) 1.67 1.67 1.55 1.55 2.02 2.02 1.69 1.69 f6 (mm) -4.16 -4.16 -2.51 -2.51 -3.86 -3.86 -5.06 -5.06 SAG31 (mm) 0.03 0.03 0.03 0.03 0.04 0.04 0.09 0.09 SAG32 (mm) -0.29 -0.29 -0.24 -0.24 -0.25 -0.25 -0.26 -0.26 SAG51 (mm) 0.10 0.10 0.08 0.08 0.02 0.02 0.00 0.00 SAG52 (mm) -0.35 -0.35 -0.39 -0.39 -0.32 -0.32 -0.35 -0.35 ET1 (mm) 0.25 0.25 0.21 0.21 0.22 0.22 0.34 0.34 ET4 (mm) 0.48 0.48 0.44 0.44 0.36 0.36 0.52 0.52

[0169] Table 18

[0170] In summary, the optical imaging lenses of Examples 1 to 8 satisfy the relationships shown in Table 19.

[0171]

[0172]

[0173] Table 19

[0174] This application also provides an imaging device, and its electronic photosensitive element can be a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor element (CMOS). The imaging device can be an independent imaging device such as a digital camera, or an imaging module integrated on a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.

[0175] The above description is only the preferred embodiments of this application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions 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 solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An optical imaging lens, characterized in that, Comprising: A lens barrel, a lens group, and a support member group disposed within the lens barrel, wherein, The lens group sequentially includes, from the object side to the image side along the optical axis: a first lens with a negative focal power, having a convex object side surface and a concave image side surface; a second lens with a focal power, having a concave object side surface and a convex image side surface; a third lens with a positive focal power, having a convex object side surface and a convex image side surface; a fourth lens with a negative focal power, having a concave image side surface; a fifth lens with a positive focal power, having a convex image side surface; and a sixth lens with a negative focal power, having a convex object side surface and a concave image side surface; The support member group includes a fifth support member disposed on the image side of the fifth lens and in contact with the image side surface of the fifth lens; and The optical imaging lens satisfies: 2.25 < CT5 / CT6 < 3.05; 6.25 < (d0m - d5s) / CT6 < 8.7, wherein, CT5 is the central thickness of the fifth lens on the optical axis, CT6 is the central thickness of the sixth lens on the optical axis, d0m is the inner diameter of the image side end face of the lens barrel, 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 optical imaging lens satisfies: 2.1 < CT3 / CT4 < 3.2; 2.2 < (CT3 + CT5) / L < 2.75, wherein, CT3 is the central thickness of the third lens on the optical axis, CT4 is the central thickness of the fourth lens on the optical axis, CT5 is the central thickness of the fifth lens on the optical axis, and L is the distance along the optical axis between the object side end face and the image side end face of the lens barrel.

3. The optical imaging lens according to claim 1, wherein The optical imaging lens satisfies: 0.45 < (D0m - D0s) / TD < 0.6; 0.95 < L / TD < 1.15, wherein, D0m is the outer diameter of the image side end face of the lens barrel, D0s is the outer diameter of the object side end face of the lens barrel, TD is the distance along the optical axis from the object side surface of the first lens to the image side surface of the sixth lens, and L is the distance along the optical axis between the object side end face and the image side end face of the lens barrel.

4. The optical imaging lens according to claim 1, wherein The optical imaging lens satisfies: 1.7 < (d0m - d5m) / EP50m < 2.6, wherein, d0m is the inner diameter of the image side end face of the lens barrel, d5m is the inner diameter of the object side surface of the fifth support member, and EP50m is the distance along the optical axis from the fifth support member to the image side end face of the lens barrel.

5. The optical imaging lens according to any one of claims 1 to 4, characterized in that, The support member group further includes a fourth support member disposed on the image side of the fourth lens and in contact with the image side surface of the fourth lens. The optical imaging lens satisfies: -2.4 < CT5 / SAG52 < -1.73; 0.45 < EP45 / CT5 < 0.65, wherein, CT5 is the central thickness of the fifth lens on the optical axis, SAG52 is the axial distance between the intersection of the image side surface of the fifth lens and the optical axis and the vertex of the effective radius of the image side surface of the fifth lens, and EP45 is the distance along the optical axis from the image side surface of the fourth support member to the object side surface of the fifth support member.

6. The optical imaging lens according to any one of claims 1 to 4, characterized in that, The distance along the optical axis from the image side surface of the first lens to the object side surface of the second lens is greater than the distance along the optical axis between any other two adjacent lenses. The support member group further includes a first support member disposed on the image side of the first lens and in contact with the image side surface of the first lens. The optical imaging lens satisfies: 0.7 < CT1 / ET1 ≤ 1.3; 0.4 < EP01 / (CT1 + T12) < 1.25, where CT1 is the central thickness of the first lens on the optical axis, ET1 is the edge thickness of the first lens in the optically effective region, EP01 is the distance along the optical axis from the object side end face of the lens barrel to the object side surface of the first support member, and T12 is the distance along the optical axis from the image side surface of the first lens to the object side surface of the second lens.

7. The optical imaging lens according to any one of claims 1 to 4, characterized in that, The support member group further includes a second support member disposed on the image side of the second lens and in contact with the image side surface of the second lens and the inner wall of the lens barrel. The optical imaging lens satisfies: 0.35 < (d5s - d2m) / Tr5r10 ≤ 0.70, where d5s is the inner diameter of the object side surface of the fifth support member, d2m is the inner diameter of the image side surface of the second support member, and Tr5r10 is the distance along the optical axis from the object side surface of the third lens to the image side surface of the fifth lens.

8. The optical imaging lens according to any one of claims 1 to 4, characterized in that, The support member group further includes a second support member disposed on the image side of the second lens and in contact with the image side surface of the second lens and the inner wall of the lens barrel, and a third support member disposed on the image side of the third lens and in contact with the image side surface of the third lens. The optical imaging lens satisfies: -1.1 < R6 / f3 < -0.65; -9.47 < SAG32 / SAG31 < -2.85; 1.45 < CT3 / EP23 < 2.75, where R6 is the curvature radius of the image side surface of the third lens, f3 is the effective focal length of the third lens, SAG32 is the axial distance on the optical axis between the intersection of the image side surface of the third lens and the optical axis and the vertex of the effective radius of the image side surface of the third lens, SAG31 is the axial distance on the optical axis between the intersection of the object side surface of the third lens and the optical axis and the vertex of the effective radius of the object side surface of the third lens, CT3 is the central thickness of the third lens on the optical axis, and EP23 is the distance along the optical axis from the image side surface of the second support member to the object side surface of the third support member.

9. The optical imaging lens according to any one of claims 1 to 4, wherein The absolute value of the effective focal length of the third lens is less than the absolute values of the effective focal lengths of the other lenses. The support member group further includes a third support member disposed on the image side of the third lens and in contact with the image side surface of the third lens. The optical imaging lens satisfies: 0.75 < f3 / f < 1.05; 0.35 < d3s / D3s < 0.75, where f3 is the effective focal length of the third lens, f is the effective focal length of the optical imaging lens, d3s is the inner diameter of the object side surface of the third support member, and D3s is the outer diameter of the object side surface of the third support member.

10. The optical imaging lens according to any one of claims 1 to 4, characterized in that, The bearing member group further includes a fourth bearing member disposed on the image side of the fourth lens and in contact with the image side surface of the fourth lens, and the optical imaging lens satisfies: 0≤SAG51 / CT5<0.2; 0.7<d4m / f5<1.3, wherein, SAG51 is the axial interval distance between the intersection point of the object side surface of the fifth lens and the optical axis and the vertex of the effective radius of the object side surface of the fifth lens, CT5 is the central thickness of the fifth lens on the optical axis, d4m is the inner diameter of the image side surface of the fourth bearing member, and f5 is the effective focal length of the fifth lens.

11. The optical imaging lens according to any one of claims 1 to 4, characterized in that, The bearing member group further includes a third bearing member disposed on the image side of the third lens and in contact with the image side surface of the third lens, and a fourth bearing member disposed on the image side of the fourth lens and in contact with the image side surface of the fourth lens, and the optical imaging lens satisfies: 0.1<T34 / CT4<0.55; 0.45<(D4s-D3s) / (T34+CT4+T45)<1.38, wherein, T34 is the interval distance along the optical axis from the image side surface of the third lens to the object side surface of the fourth lens, CT4 is the central thickness of the fourth lens on the optical axis, T45 is the interval distance along the optical axis from the image side surface of the fourth lens to the object side surface of the fifth lens, D4s is the outer diameter of the object side surface of the fourth bearing member, and D3s is the outer diameter of the object side surface of the third bearing member.

12. The optical imaging lens according to any one of claims 1 to 4, characterized in that The bearing member group further includes a fourth bearing member disposed on the image side of the fourth lens and in contact with the image side surface of the fourth lens. The fourth bearing member and the fifth bearing member are in contact with the inner wall of the lens barrel, and the inner wall of the lens barrel has a vertical axis step between the positions where the fourth bearing member and the fifth bearing member are in contact with the inner wall of the lens barrel. The optical imaging lens satisfies: 6.54<d5s / T56<76.1; 0.75<(D5m-D4m) / EP45<2.1, wherein, d5s is the inner diameter of the object side surface of the fifth bearing member, T56 is the interval distance along the optical axis from the image side surface of the fifth lens to the object side surface of the sixth lens, D5m is the outer diameter of the image side surface of the fifth bearing member, D4m is the outer diameter of the image side surface of the fourth bearing member, and EP45 is the interval distance along the optical axis from the image side surface of the fourth bearing member to the object side surface of the fifth bearing member.

13. The optical imaging lens according to claim 12, characterized in that, The optical imaging lens satisfies: 0.4≤(D5m-D4m) / (D0m-d0m)<0.95, wherein, D5m is the outer diameter of the image side surface of the fifth bearing member, D4m is the outer diameter of the image side surface of the fourth bearing member, D0m is the outer diameter of the image side end face of the lens barrel, and d0m is the inner diameter of the image side end face of the lens barrel.

14. The optical imaging lens according to any one of claims 1 to 4, characterized in that, The bearing member group further includes a first bearing member disposed on the image side of the first lens and in contact with the image side surface of the first lens, and the optical imaging lens satisfies: 1.33<tan(FOV / 2)<1.56; -2.7<f1 / f<-1.9; 3.6<(d0s-d1s) / CT1<6.45, Wherein, FOV is the maximum field of view angle of the optical imaging lens, f1 is the effective focal length of the first lens, f is the effective focal length of the optical imaging lens, d0s is the inner diameter of the object-side end face of the lens barrel, d1s is the inner diameter of the object-side face of the first supporting member, and CT1 is the central thickness of the first lens on the optical axis.

15. The optical imaging lens according to any one of claims 1 to 4, characterized in that, The supporting member group further includes a third supporting member disposed on the image side of the third lens and in contact with the image-side face of the third lens, and a fourth supporting member disposed on the image side of the fourth lens and in contact with the image-side face of the fourth lens, and the optical imaging lens satisfies: The refractive index of at least two lenses is greater than 1.6, wherein the refractive index of the fourth lens is greater than 1.6; and 0.5 < ET4 / (CP3 + EP34 + CP4) < 0.7, Wherein, ET4 is the edge thickness of the fourth lens in the optically effective region, CP3 is the distance along the optical axis from the object-side face to the image-side face of the third supporting member, EP34 is the distance along the optical axis from the image-side face of the third supporting member to the object-side face of the fourth supporting member, and CP4 is the distance along the optical axis from the object-side face to the image-side face of the fourth supporting member.

Images