Optical imaging lens

Abstract

The present application discloses an optical imaging lens, which includes a lens barrel assembly, a six-piece lens group and a support member group disposed within the lens barrel assembly. The six-piece lens group includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens arranged in sequence along the optical axis from the object side to the image side; the support member group includes a first support member in contact with the image side surface of the first lens and a second support member in contact with the image side surface of the second lens; wherein, the aperture number FNO of the optical imaging lens satisfies: FNO < 1.6, the maximum field of view FOV of the optical imaging lens satisfies: 20° < FOV < 28°, the radius of curvature R3 of the object side surface of the second lens, the radius of curvature R4 of the image side surface of the second lens and the inner diameter d2s of the object side surface of the second support member satisfy: 1.0 < (R3 + R4) / d2s < 2.3, the air gap T12 between the first lens and the second lens on the optical axis, the air gap T23 between the second lens and the third lens on the optical axis, the outer diameter D1s of the object side surface of the first support member and the outer diameter D2s of the object side surface of the second support member satisfy: -4.5 < (T12 + T23) / (D2s - D1s) < -1.5.

Description

Technical Field

[0001] This application relates to the field of optical devices, and particularly to a six-piece optical imaging lens. Background Art

[0002] With the popularization of portable electronic products such as mobile phones and tablet computers, more new requirements have been put forward for the imaging function of portable electronic products. For example, the imaging lens of a portable electronic product is designed as a telephoto lens and satisfies the characteristics of a large aperture.

[0003] In order to enable a six-piece imaging lens to simultaneously achieve the characteristics of a large aperture and a telephoto lens, the volumes of the three lenses closer to the object side of the imaging lens are larger than those of the three lenses closer to the image side of the imaging lens, and the middle lens at the middle position of the three lenses closer to the object side will affect the overall optical performance of the adjacent lenses and the imaging lens, which will result in a higher sensitivity of the middle lens. When the structural settings of the middle lens and its adjacent supporting members are unreasonable, problems such as stray light, poor assembly stability, or poor imaging quality will occur in the imaging lens. Summary of the Invention

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

[0005] On the one hand, this application provides such an optical imaging lens, which includes a lens barrel assembly, a six-piece lens group, and a supporting member group disposed in the lens barrel assembly. The six-piece lens group includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens arranged in sequence from the object side to the image side along the optical axis. The absolute value of the effective focal length of the third lens or the fourth lens is less than the absolute value of the effective focal length of any lens other than the third lens or the fourth lens in the six-piece lens group; the supporting member group includes a first supporting member disposed on the image side surface of the first lens and in contact with the image side surface of the first lens, and a second supporting member disposed on the image side surface of the second lens and in contact with the image side surface of the second lens; the aperture number FNO of the optical imaging lens satisfies: FNO < 1.6, the maximum field of view FOV of the optical imaging lens satisfies: 20° < FOV < 28°, the radius of curvature R3 of the object side surface of the second lens, the radius of curvature R4 of the image side surface of the second lens, and the inner diameter d2s of the object side surface of the second supporting member satisfy: 1.0 < (R3 + R4) / d2s < 2.3, and the air gap T12 between the first lens and the second lens on the optical axis, the air gap T23 between the second lens and the third lens on the optical axis, the outer diameter D1s of the object side surface of the first supporting member, and the outer diameter D2s of the object side surface of the second supporting member satisfy: -4.5 < (T12 + T23) / (D2s - D1s) < -1.5.

[0006] According to an exemplary embodiment of the present application, the lens barrel assembly includes a first lens barrel and a second lens barrel arranged along the optical axis from the object side to the image side, and the length L1 of the first lens barrel in the direction of the optical axis and the length L2 of the second lens barrel in the direction of the optical axis satisfy: 1.8 < L1 / L2 < 2.5.

[0007] According to an exemplary embodiment of the present application, the first lens, the second lens, and the third lens are disposed in the first lens barrel, and the fourth lens, the fifth lens, and the sixth lens are disposed in the second lens barrel.

[0008] According to an exemplary embodiment of the present application, the inner diameter d01m of the image-side end face of the first lens barrel, the inner diameter d02s of the object-side end face of the second lens barrel, the effective focal length f3 of the third lens, and the effective focal length f4 of the fourth lens satisfy: 5.0 < |(d01m + d02s) / (f3 + f4)| < 18.5.

[0009] According to an exemplary embodiment of the present application, the inner diameter d01s of the object-side end face of the first lens barrel, the inner diameter d02s of the object-side end face of the second lens barrel, and the f-number FNO of the optical imaging lens satisfy: 3.0 mm < (d01s - d02s) / FNO < 3.5 mm.

[0010] According to an exemplary embodiment of the present application, the first lens, the second lens, and the third lens form a first lens group, and the fourth lens, the fifth lens, and the sixth lens form a second lens group. Among them, the length L1 of the first lens barrel in the direction of the optical axis, the length L2 of the second lens barrel in the direction of the optical axis, the effective focal length F1 of the first lens group, and the effective focal length F2 of the second lens group satisfy: -5.6 < (L1 - L2) / (F1 + F2) < -2.0.

[0011] According to an exemplary embodiment of the present application, the inner diameter d01m of the image-side end face of the first lens barrel, the outer diameter D01m of the image-side end face of the first lens barrel, the inner diameter d02s of the object-side end face of the second lens barrel, and the outer diameter D02s of the object-side end face of the second lens barrel satisfy: 0.5 < (D02s - d02s) / (D01m - d01m) < 1.8.

[0012] According to an exemplary embodiment of the present application, the curvature radius R5 of the object-side surface of the third lens and the curvature radius R6 of the image-side surface of the third lens satisfy: -2.0 < R6 / R5 < -0.8. The interval EP01 between the object-side end face of the first lens barrel and the first bearing member along the optical axis, the interval EP12 between the first bearing member and the second bearing member along the optical axis, the length L1 of the first lens barrel in the direction of the optical axis, the maximum thickness CP1 of the first bearing member, the maximum thickness CP2 of the second bearing member, and the central thickness CT3 of the third lens on the optical axis satisfy: 0.4 < (L1 - EP01 - CP1 - EP12 - CP2) / CT3 < 1.4.

[0013] According to an exemplary embodiment of this application, the effective focal length f2 of the second lens, the Abbe number V2 of the second lens, and the maximum thickness CP2 of the second support member satisfy: -19.2 <f2 / (V2×CP2)<-8.8。

[0014] According to an exemplary embodiment of this application, the inner diameter d1s of the object side of the first bearing member, the inner diameter d2s of the object side of the second bearing member, the refractive index N1 of the first lens and the refractive index N2 of the second lens satisfy: -1.0mm < (d1s-d2s) / (N2-N1) < 7.0mm.

[0015] According to an exemplary embodiment of this application, the air gap T12 between the first lens and the second lens on the optical axis, the air gap T23 between the second lens and the third lens on the optical axis, the maximum thickness CP1 of the first support member and the maximum thickness CP2 of the second support member satisfy: CP1 / T12×(T23 / CP2)<1.2.

[0016] According to an exemplary embodiment of this application, the Abbe number V1 of the first lens, the maximum effective half-aperture DT12 of the object-side surface of the first lens, and the inner diameter d1s of the object-side surface of the first bearing member satisfy: 105.8 <V1 / (DT12 / d1s)<111.2。

[0017] According to an exemplary embodiment of this application, the support assembly further includes a first auxiliary support disposed on the image side of the first support and in contact with the image side of the first support, wherein the air gap T12 between the first lens and the second lens on the optical axis, the maximum thickness CP1 of the first support and the maximum thickness CP1b of the first auxiliary support satisfy: 0.5 < (CP1 + CP1b) / T12 < 1.8.

[0018] According to an exemplary embodiment of this application, the support assembly further includes a first auxiliary support disposed on and in contact with the image-side surface of the first support, wherein the radius of curvature R1 of the object-side surface of the first lens, the radius of curvature R2 of the image-side surface of the first lens, and the radius of curvature R3 of the object-side surface of the second lens satisfy: -16.2 < (R1 + R2) / R3 < 3.2, and the inner diameter d1s of the object-side surface of the first support and the inner diameter d1bs of the object-side surface of the first auxiliary support satisfy: 0.5 <d1s / d1bs<1.2。

[0019] According to an exemplary embodiment of this application, the air gap between the third lens and the fourth lens on the optical axis is variable, and the variable is less than 3 mm.

[0020] In some embodiments of this application, by rationally arranging the focal lengths of the third lens, the fourth lens, and other lenses, it is beneficial to achieve optical performance such as large aperture and telephoto of the optical imaging lens, ensuring better imaging effect of the optical imaging lens in dark fields and when shooting moving objects. In this case, the first lens, the second lens, and the third lens are larger in volume than other lenses, and the second lens, as an intermediate lens, will affect the overall optical performance of adjacent lenses and the lens. Therefore, by matching the curvature radius of the object side and image side of the second lens and the inner diameter of the object side of the second support member, the curvature of the effective diameter portion of the second lens and the front end size of the lens can be constrained. However, this will lead to an increase in the sensitivity of the air gap adjacent to the second lens. Therefore, by constraining the ratio of the sum of the air gaps between adjacent lenses in the first to third lenses to the difference between the outer diameters of the object sides of the second and first support members within a reasonable range, it is possible to ensure that there are reasonable air gaps between adjacent lenses in the first to third lenses, reduce the gap sensitivity between adjacent lenses, improve the performance yield of the optical imaging lens, and make the overall structure of the optical imaging lens more compact and reasonable, avoiding the imbalance in the ratio of the lens and support member in terms of spacing and outer diameter, thereby reducing costs while improving the assembly stability and reliability of the optical imaging lens. Attached Figure Description

[0021] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which:

[0022] Figure 1 A schematic diagram of the parameters of an optical imaging lens according to this application is shown;

[0023] Figure 2 A schematic diagram of the structure of an optical imaging lens according to Embodiment 1 of this application is shown;

[0024] Figure 3 A schematic diagram of the structure of an optical imaging lens according to Embodiment 2 of this application is shown;

[0025] Figure 4 A schematic diagram of the structure of an optical imaging lens according to Embodiment 3 of this application is shown;

[0026] Figures 5A to 5C The on-axis chromatic aberration curve, astigmatism curve, and distortion curve of the optical imaging lens according to Embodiments 1, 2, or 3 of this application are shown respectively.

[0027] Figure 6 A schematic diagram of the structure of an optical imaging lens according to Embodiment 4 of this application is shown;

[0028] Figure 7 A schematic diagram of the structure of an optical imaging lens according to Embodiment 5 of this application is shown;

[0029] Figure 8 A schematic diagram of the structure of an optical imaging lens according to Embodiment 6 of this application is shown;

[0030] Figures 9A to 9C The on-axis chromatic aberration curve, astigmatism curve, and distortion curve of the optical imaging lens according to Embodiments 4, 5, or 6 of this application are shown respectively.

[0031] Figure 10 A schematic diagram of the structure of an optical imaging lens according to Embodiment 7 of this application is shown;

[0032] Figure 11 A schematic diagram of the structure of an optical imaging lens according to Embodiment 8 of this application is shown;

[0033] Figure 12 A schematic diagram of the structure of an optical imaging lens according to Embodiment 9 of this application is shown; and

[0034] Figures 13A to 13C The on-axis chromatic aberration curve, astigmatism curve, and distortion curve of the optical imaging lens according to Embodiments 7, 8, or 9 of this application are shown respectively. Detailed Implementation

[0035] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0036] It should be noted that in this specification, the terms "first," "second," "third," etc., are used only to distinguish one feature from another and do not imply any limitation on the features. Therefore, without departing from the teachings of this application, the first lens discussed below may also be referred to as the second lens or the third lens.

[0037] In the accompanying drawings, the thickness, size, and shape of the lenses have been slightly exaggerated for ease of illustration. Specifically, the shapes of the spherical or aspherical surfaces shown in the drawings are illustrated by way of example. That is, the shapes of the spherical or aspherical surfaces are not limited to those shown in the drawings. The drawings are for illustrative purposes only and are not drawn strictly to scale.

[0038] In this article, the paraxial region refers to the region near the optical axis. If the lens surface is convex and the location of the convexity 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 location of the concaveness is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the subject is called the object-side surface of the lens, and the surface of each lens closest to the imaging plane is called the image-side surface of the lens.

[0039] It should also be understood that the terms "comprising," "including," and / or "having," when used in this specification, indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. Furthermore, when describing embodiments of this application, the word "may" is used to mean "one or more embodiments of this application." And the term "exemplary" is intended to refer to an example or illustration.

[0040] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms (e.g., those defined in common dictionaries) shall be interpreted as having the meaning consistent with their meaning in the context of the relevant art and shall not be interpreted in an idealized or overly formalized sense, unless expressly so specified herein.

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] Figure 1 This is a structural layout diagram and a schematic diagram of some parameters of an optical imaging lens according to an exemplary embodiment of this application. (Reference) Figure 1 d1s represents the inner diameter of the object-side surface of the first support member, D1s represents the outer diameter of the object-side surface of the first support member, d2s represents the inner diameter of the object-side surface of the second support member, D2s represents the outer diameter of the object-side surface of the second support member, d1bs represents the inner diameter of the object-side surface of the first auxiliary support member, d01s represents the inner diameter of the object-side end face of the first lens barrel, d01m represents the inner diameter of the image-side end face of the first lens barrel, D01m represents the outer diameter of the image-side end face of the first lens barrel, and d02s represents the inner diameter of the object-side end face of the second lens barrel. The inner diameter of the surface, D02s represents the outer diameter of the object-side end face of the second lens barrel, EP01 represents the distance between the object-side end face of the first lens barrel and the first support member along the optical axis, CP1 represents the maximum thickness of the first support member, EP12 represents the distance between the first support member and the second support member along the optical axis, CP2 represents the maximum thickness of the second support member, L1 represents the length of the first lens barrel in the direction of the optical axis, L2 represents the length of the second lens barrel in the direction of the optical axis, and CP1b represents the maximum thickness of the first auxiliary support member.

[0043] refer to Figures 2 to 4 , Figures 6 to 8 as well as Figures 10 to 12The first aspect of this application provides an optical imaging lens that may include a six-element lens group, comprising a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens arranged sequentially along the optical axis from the object side to the image side. Air gaps may exist between any two adjacent lenses in the first to sixth lenses. As an example, the first, third, and fifth lenses may have positive optical power, while the second, fourth, and sixth lenses may have negative optical power.

[0044] In an exemplary embodiment, the first lens, the second lens, and the third lens form a first lens group, and the fourth lens, the fifth lens, and the sixth lens form a second lens group. By changing the on-axis distance between the first lens group and the second lens group, zooming of the optical imaging lens can be achieved, thereby allowing the optical imaging lens to switch between telephoto and close-up modes. By rationally configuring the number of lenses in each lens group and the air gap between adjacent lenses, the distortion contribution and field curvature performance of the optical imaging lens can be better controlled, improving the optical performance of the optical imaging lens. As an example, the air gap between the third and fourth lenses on the optical axis is variable, and the variable is less than 3 mm.

[0045] In an exemplary embodiment, the optical imaging lens may further include a support assembly, which may include one or more of a first support, a first auxiliary support, a second support, a fourth support, and a fifth support. The first support is positioned on the image-side surface of the first lens and at least partially contacts the image-side surface of the first lens. The first auxiliary support is positioned on the image-side surface of the first support and at least partially contacts the image-side surface of the first support. The second support is positioned on the image-side surface of the second lens and at least partially contacts the image-side surface of the second lens. The fourth support is positioned on the image-side surface of the fourth lens and at least partially contacts the image-side surface of the fourth lens. The fifth support is positioned on the image-side surface of the fifth lens and at least partially contacts the image-side surface of the fifth lens. Proper use of the support assemblies can effectively mitigate stray light risks, reduce interference with image quality, and thus improve the imaging quality of the optical imaging lens.

[0046] In an exemplary embodiment, the optical imaging lens may further include a lens barrel assembly, with a six-element lens group and a support assembly disposed within the lens barrel assembly. The lens barrel assembly may include a first lens barrel and a second lens barrel arranged along the optical axis from the object side to the image side. The first lens barrel is used to house the first lens group, i.e., to house the first lens, the second lens, and the third lens. The second lens barrel is used to house the second lens group, i.e., to house the fourth lens, the fifth lens, and the sixth lens.

[0047] In an exemplary embodiment, the absolute value of the effective focal length of the third lens or the fourth lens is the minimum of the absolute values of the effective focal lengths of the six lenses described above. That is, the absolute value of the effective focal length of the third lens or the fourth lens is less than the absolute value of the effective focal length of any one of the lenses in the six-lens group other than the third lens or the fourth lens. The aperture number FNO of the optical imaging lens may satisfy: FNO < 1.6, and the maximum field of view FOV of the optical imaging lens may satisfy: 20° < FOV < 28°. The radius of curvature R3 of the object side of the second lens, the radius of curvature R4 of the image side of the second lens, and the inner diameter d2s of the object side of the second support member may satisfy: 1.0 < (R3 + R4) / d2s < 2.3. The air gap T12 between the first lens and the second lens on the optical axis, the air gap T23 between the second lens and the third lens on the optical axis, the outer diameter D1s of the object side of the first support member, and the outer diameter D2s of the object side of the second support member may satisfy: -4.5 < (T12 + T23) / (D2s - D1s) < -1.5. By reasonably arranging the focal lengths of the third lens, the fourth lens, and the focal lengths of other lenses, it is beneficial to achieve optical performances such as a large aperture and a long focal length of the optical imaging lens, ensuring better imaging effects when the optical imaging lens is in a dark field of view and shooting a moving object. In this case, the first lens, the second lens, and the third lens are relatively larger in volume compared to other lenses, and the second lens, as an intermediate lens, will affect the overall optical performance of adjacent lenses and the lens. Therefore, by reasonably arranging the radius of curvature of the object side and the image side of the second lens and the inner diameter of the object side of the second support member, the bending degree of the effective diameter portion of the second lens and the front-end size of the lens can be restricted, but it will cause an increase in the sensitivity of the air gap adjacent to the second lens. Therefore, by restricting the ratio of the sum of the air gaps between adjacent lenses among the first lens to the third lens to the difference between the outer diameters of the object sides of the second support member and the first support member within a reasonable range, a reasonable air gap can be achieved between adjacent lenses among the first lens to the third lens, reducing the gap sensitivity between adjacent lenses, improving the performance yield of the optical imaging lens, and making the overall structure of the optical imaging lens more compact and reasonable, avoiding the proportional imbalance in the intervals and outer diameters of the lenses and the support members, and improving the assembly stability and reliability of the optical imaging lens while reducing costs.

[0048] The relationship between the air gap between adjacent lenses and the sensitivity will be further described below with reference to Tables A to C. In Tables A to C, the symbols “+” and “-” in “+3μm” and “-3μm” represent the directions of the field curvature movement of the MTF curve, and “F” in “0.1F”, “0.2F”, “0.3F”, “0.4F”, “0.5F”, “0.6F”, “0.7F”, “0.8F”, “0.9F”, and “1.0F” represents the field of view. T12 is the air gap between the first lens and the second lens, and T23 is the air gap between the second lens and the third lens.

[0049] Table a shows the sensitivity of the air gap between any two adjacent lenses (the first to the third lens) to field curvature when (T12+T23) / (D2s-D1s) is -3.0. For example, in a 1.0 field of view, when the air gap between the first and second lenses deviates by +3μm from the design value, the field curvature shift is 0.97μm; when the air gap between the first and second lenses deviates by -3μm from the design value, the field curvature shift is -0.05μm; when the air gap between the second and third lenses deviates by +3μm from the design value, the field curvature shift is 0μm; and when the air gap between the second and third lenses deviates by -3μm from the design value, the field curvature shift is 0.47μm.

[0050] Table b shows the sensitivity of the air gap between any adjacent lenses from the first to the third lens to the field curvature when (T12+T23) / (D2s-D1s) is -5.0. For example, in a 1.0 field of view, when the air gap between the first and second lenses deviates by +3μm from the design value, the field curvature shift is 0.71μm; when the air gap between the first and second lenses deviates by -3μm from the design value, the field curvature shift is -0.89μm; when the air gap between the second and third lenses deviates by +3μm from the design value, the field curvature shift is 1.65μm; and when the air gap between the second and third lenses deviates by -3μm from the design value, the field curvature shift is -1.35μm.

[0051] Table c shows the sensitivity of the air gap between any two adjacent lenses (the first to the third lens) to field curvature when (T12+T23) / (D2s-D1s) is -1.0. For example, in a 1.0 field of view, when the air gap between the first and second lenses deviates by +3μm from the design value, the field curvature shift is 1.59μm; when the air gap between the first and second lenses deviates by -3μm from the design value, the field curvature shift is -1.94μm; when the air gap between the second and third lenses deviates by +3μm from the design value, the field curvature shift is 0.58μm; and when the air gap between the second and third lenses deviates by -3μm from the design value, the field curvature shift is -0.75μm.

[0052] The absolute values of the bolded data in Table a, Table b, and Table c are all greater than 0.7 μm. In Table a, at a field of view of 1.0, when the air gap between the first lens and the second lens deviates from the design value by +3 μm, the absolute value of the offset of the field curvature is greater than 0.7 μm. Except for the above data, the absolute values of other data are all below 0.7 μm. However, in Table b, at a field of view of 1.0, when the air gap between the first lens and the second lens deviates from the design value by +3 μm or -3 μm and the air gap between the second lens and the third lens deviates from the design value by +3 μm or -3 μm, the absolute values of the offsets of the field curvature are both greater than 0.7 μm; in Table c, at a field of view of 1.0, when the air gap between the first lens and the second lens deviates from the design value by +3 μm or -3 μm and the air gap between the second lens and the third lens deviates from the design value by -3 μm, the absolute values of the offsets of the field curvature are both greater than 0.7 μm. It can be seen that when the optical imaging lens satisfies "-4.5 < (T12 + T23) / (D2s - D1s) < -1.5", the sensitivity of the air gap between any adjacent lenses from the first lens to the third lens to the field curvature is relatively low.

[0053]

[0054] Table a

[0055]

[0056] Table b

[0057]

[0058]

[0059] Table c

[0060] In an exemplary embodiment, the length L1 of the first lens barrel in the direction of the optical axis and the length L2 of the second lens barrel in the direction of the optical axis may satisfy: 1.8 < L1 / L2 < 2.5. When the difference in the lengths of the first lens barrel and the second lens barrel in the direction of the optical axis is too large, it will cause differences between the first lens group and the second lens group under conditions such as dropping, high temperature and high humidity, and further cause deviations in the imaging superposition of these two lens groups, affecting the imaging quality of the optical imaging lens. By reasonably controlling the ratio of the lengths of the first lens barrel and the second lens barrel in the direction of the optical axis, the reliability and imaging quality of the optical imaging lens can be effectively improved.

[0061] In an exemplary embodiment, the inner diameter d01m of the image-side end face of the first lens barrel, the inner diameter d02s of the object-side end face of the second lens barrel, the effective focal length f3 of the third lens, and the effective focal length f4 of the fourth lens can satisfy: 5.0 < |(d01m + d02s) / (f3 + f4)| < 18.5. By constraining the ratio of the sum of the inner diameters of the image-side end face of the first lens barrel and the object-side end face of the second lens barrel to the sum of the effective focal lengths of the third and fourth lenses within a reasonable range, unnecessary stray light can be avoided without affecting the light transmission of the optical imaging lens, thereby improving the imaging quality of the optical imaging lens.

[0062] In an exemplary embodiment, the inner diameter d01s of the object-side end face of the first lens barrel, the inner diameter d02s of the object-side end face of the second lens barrel, and the aperture number FNO of the optical imaging lens can satisfy: 3.0mm < (d01s - d02s) / FNO < 3.5mm. By constraining the ratio of the difference between the inner diameters of the object-side end faces of the first and second lens barrels to the aperture number of the optical imaging lens within a reasonable range, the lens barrel assembly can block excess stray light and improve the imaging quality of the optical imaging lens without affecting the amount of light entering the optical imaging lens.

[0063] In an exemplary embodiment, the length L1 of the first lens barrel along the optical axis, the length L2 of the second lens barrel along the optical axis, and the effective focal lengths F1 and F2 of the first and second lens groups can satisfy: -5.6 < (L1 - L2) / (F1 + F2) < -2.0. By constraining the ratio of the difference between the lengths of the first and second lens barrels along the optical axis to the sum of the effective focal lengths of the first and second lens groups within a reasonable range, the air gap between any two adjacent lenses in the optical imaging lens can be reasonably allocated while ensuring good imaging quality. This effectively reduces the sensitivity of the optical imaging lens and improves its optical performance and assembly yield.

[0064] In an exemplary embodiment, the inner diameter d01m and outer diameter D01m of the image-side end face of the first lens barrel, and the inner diameter d02s and outer diameter D02s of the object-side end face of the second lens barrel can satisfy: 0.5 < (D02s - d02s) / (D01m - d01m) < 1.8. Reasonably configuring the inner and outer diameters of the image-side end face of the first lens barrel and the inner and outer diameters of the object-side end face of the second lens barrel facilitates the matching of the first and second lens barrels. While meeting the requirements for assembly support and stability, it minimizes the size of the optical imaging lens to the greatest extent, resulting in a more compact overall structure to meet market demands.

[0065] In an exemplary embodiment, the radius of curvature R5 of the object side surface of the third lens and the radius of curvature R6 of the image side surface of the third lens may satisfy: -2.0 < R6 / R5 < -0.8, and the interval EP01 between the object side end face of the first lens barrel and the first bearing member along the optical axis, the interval EP12 between the first bearing member and the second bearing member along the optical axis, the length L1 of the first lens barrel in the direction of the optical axis, the maximum thickness CP1 of the first bearing member, the maximum thickness CP2 of the second bearing member, and the central thickness CT3 of the third lens on the optical axis may satisfy: 0.4 < (L1 - EP01 - CP1 - EP12 - CP2) / CT3 < 1.4. By restricting the ratio of the radius of curvature of the object side surface and the image side surface of the third lens within the range of -0.8 to -2.0, the total deflection angle of the marginal field when passing through these two surfaces can be made to be within a reasonable range. At the same time, by controlling the relationship between the interval between the object side end face of the first lens barrel and the first bearing member along the optical axis, the interval between the first bearing member and the second bearing member along the optical axis, the length of the first lens barrel in the direction of the optical axis, the maximum thickness of the first bearing member, the maximum thickness of the second bearing member, and the central thickness of the third lens on the optical axis, it is possible to prevent the edge thickness of the third lens from being too thick or too thin, ensure the strength of the first bearing member and the second bearing member, and improve the assembly stability and processability of the optical imaging lens.

[0066] In an exemplary embodiment, the effective focal length f2 of the second lens, the Abbe number V2 of the second lens, and the maximum thickness CP2 of the second bearing member may satisfy: -19.2 < f2 / (V2×CP2) < -8.8. As an intermediate lens, the second lens has a higher sensitivity than other lenses in the optical imaging lens. By reasonably configuring the effective focal length and the Abbe number of the second lens, the surface shape of the second lens can be restricted to a certain extent. At the same time, by matching a reasonable maximum thickness of the second bearing member, the sensitivity of the surface shape of the second lens can be reduced, and the MTF yield of the optical imaging lens can be improved.

[0067] In an exemplary embodiment, the inner diameter d1s of the object side surface of the first bearing member, the inner diameter d2s of the object side surface of the second bearing member, the refractive index N1 of the first lens, and the refractive index N2 of the second lens may satisfy: -1.0 mm < (d1s - d2s) / (N2 - N1) < 7.0 mm. By restricting the ratio of the difference in the inner diameters of the object side surfaces of the first bearing member and the second bearing member to the difference in the refractive indices of the second lens and the first lens within a reasonable range, without affecting the optical performance of the optical imaging lens, it is possible to provide a space for stray light improvement. Furthermore, by adjusting the inner diameters of the first bearing member and the second bearing member, stray light can be blocked, and the quality of the optical imaging lens can be improved.

[0068] In an exemplary embodiment, the air gap T12 between the first lens and the second lens on the optical axis, the air gap T23 between the second lens and the third lens on the optical axis, the maximum thickness CP1 of the first bearing member, and the maximum thickness CP2 of the second bearing member may satisfy: CP1 / T12×(T23 / CP2) < 1.2. By controlling the above conditional expression, it helps to control the air gap between the first lens and the second lens and the air gap between the second lens and the third lens. The larger the air gap, the easier it is to select the bearing member, and the greater the improvement space for stray light. However, when the air gap is larger, the sensitivity of the air gap will also be greater. Therefore, by restricting the air gap and the thickness of the bearing member within the above range, it is beneficial to control the air gap between the lenses within a reasonable range and improve the performance of the optical imaging lens.

[0069] In an exemplary embodiment, the Abbe number V1 of the first lens, the maximum effective semi-aperture DT12 of the object side of the first lens, and the inner diameter d1s of the object side of the first bearing member may satisfy: 105.8 < V1 / (DT12 / d1s) < 111.2. By reasonably controlling the mutual relationship among the Abbe number of the first lens, the maximum effective semi-aperture of the object side of the first lens, and the inner diameter of the object side of the first bearing member, the first bearing member can block excess stray light, improve the chromatic aberration of the optical imaging lens, and enhance the imaging quality and clarity of the optical imaging lens.

[0070] In an exemplary embodiment, the air gap T12 between the first lens and the second lens on the optical axis, the maximum thickness CP1 of the first bearing member, and the maximum thickness CP1b of the first auxiliary bearing member may satisfy: 0.5 < (CP1 + CP1b) / T12 < 1.8. The assembly stability of the first lens and the second lens has a great impact on the optical imaging lens. By restricting the ratio of the sum of the thicknesses of the first bearing member and the first auxiliary bearing member to the air gap between the first lens and the second lens within a reasonable range, the assembly stability of the first lens and the second lens can be enhanced, avoiding excessive fluctuations in the air gap between the first lens and the second lens and affecting the lens performance, and improving the reliability of the optical imaging lens.

[0071] In an exemplary embodiment, the radius of curvature R1 of the object side surface of the first lens, the radius of curvature R2 of the image side surface of the first lens, and the radius of curvature R3 of the object side surface of the second lens may satisfy: -16.2 < (R1 + R2) / R3 < 3.2, and the inner diameter d1s of the object side surface of the first support member and the inner diameter d1bs of the object side surface of the first auxiliary support member satisfy: 0.5 < d1s / d1bs < 1.2. By reasonably controlling the mutual relationship among the radius of curvature of the object side surface of the first lens, the radius of curvature of the image side surface of the first lens, and the radius of curvature of the object side surface of the second lens, the convergence and refraction angles of light on the first lens can be controlled, meeting good processability and required specification parameters; at the same time, by restricting the ratio of the inner diameters of the first support member and the first auxiliary support member within a certain range, while not affecting the light conduction of the optical imaging lens, the first support member and the first auxiliary support member can block as much redundant stray light as possible, improving the imaging quality of the optical imaging lens.

[0072] In an exemplary embodiment, the optical imaging lens further includes an aperture disposed between the object side and the first lens.

[0073] The optical imaging lens according to the above embodiment of the present application may employ six lenses and at least one support member. By reasonably allocating the parameters of each lens and each support member, a large aperture and a small field angle of the optical imaging lens can be achieved, improving the stray light phenomenon of the optical imaging lens, and enhancing the assembly stability and imaging quality of the optical imaging lens. The optical imaging lens provided by the present application reduces the bearing space through the form of barrel trimming, and simultaneously realizes a long focal length and high resolution characteristics under the condition of relatively small design freedom.

[0074] In an embodiment of the present application, at least one of the surfaces of each of the first lens to the sixth lens is an aspherical surface. The characteristic of an aspherical lens is that the curvature continuously changes 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 radius of curvature characteristics and has the advantages of improving distortion aberration and astigmatism aberration. After adopting an aspherical lens, the aberration that appears during imaging can be eliminated as much as possible, thereby improving the imaging quality. Optionally, both the object side surface and the image side surface of each of the first lens to the sixth lens are aspherical surfaces.

[0075] The second aspect of the present application provides an optical imaging lens, which may include a lens barrel assembly and a six-piece lens group disposed in the lens barrel assembly. The six-piece lens group may include a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens arranged in sequence from the object side to the image side along the optical axis. The absolute value of the effective focal length of the third lens or the fourth lens is the minimum among the absolute values of the effective focal lengths of the six lenses, that is, the absolute value of the effective focal length of the third lens or the fourth lens is less than the absolute value of the effective focal length of any lens other than the third lens or the fourth lens in the six-piece lens group. The lens barrel assembly may include a first lens barrel and a second lens barrel arranged from the object side to the image side along the optical axis. The first lens barrel is used to accommodate the first lens, the second lens, and the third lens, and the second lens barrel is used to accommodate the fourth lens, the fifth lens, and the sixth lens.

[0076] The aperture number FNO of the optical imaging lens may satisfy: FNO < 1.6, the maximum field of view FOV of the optical imaging lens may satisfy: 20° < FOV < 28°, and the length L1 of the first lens barrel in the direction of the optical axis and the length L2 of the second lens barrel in the direction of the optical axis may satisfy: 1.8 < L1 / L2 < 2.5. By reasonably arranging the focal lengths of the third lens, the fourth lens and the focal lengths of other lenses, it is beneficial to achieve optical performance such as large aperture and long focal length of the optical imaging lens, and ensure better imaging effects when the optical imaging lens is in a dark field of view and shooting moving objects; in this case, the axial distance from the object side surface of the first lens to the image side surface of the third lens is greater than the axial distance from the object side surface of the fourth lens to the image side surface of the sixth lens, that is, the length of the first lens barrel in the direction of the optical axis is greater than the length of the second lens barrel in the direction of the optical axis. However, when the difference in the lengths of the first lens barrel and the second lens barrel in the direction of the optical axis is too large, the lens groups in these two lens barrels will be different in the case of falling, high temperature and high humidity, etc., which will lead to a deviation in the imaging superposition of these two lens groups and affect the imaging quality of the optical imaging lens. Therefore, by reasonably controlling the ratio of the lengths of the first lens barrel and the second lens barrel in the direction of the optical axis, the reliability and imaging quality of the optical imaging lens can be effectively improved. At the same time, without affecting the optical performance, the overall structure of the optical imaging lens can be made more compact, adapted to the needs of the whole machine, and the market competitiveness can be improved.

[0077] The third aspect of the present application provides an optical imaging lens, which may include a lens barrel assembly, a six-piece lens group, and a support member group disposed in the lens barrel assembly. The six-piece lens group may include a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens arranged in sequence from the object side to the image side along the optical axis. The absolute value of the effective focal length of the third lens or the fourth lens is the minimum value of the absolute values of the effective focal lengths of the six lenses, that is, the absolute value of the effective focal length of the third lens or the fourth lens is less than the absolute value of the effective focal length of any one of the lenses other than the third lens or the fourth lens in the six-piece lens group. The support member group may include a first support member disposed on the image side surface 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 surface of the second lens and in contact with the image side surface of the second lens.

[0078] The aperture number FNO of the optical imaging lens may satisfy: FNO < 1.6, the maximum field angle FOV of the optical imaging lens may satisfy: 20° < FOV < 28°, the effective focal length f2 of the second lens, the Abbe number V2 of the second lens, and the maximum thickness CP2 of the second support member may satisfy: -19.2 < f2 / (V2 × CP2) < -9.1, the air gap T12 between the first lens and the second lens on the optical axis, the air gap T23 between the second lens and the third lens on the optical axis, the maximum thickness CP1 of the first support member, and the maximum thickness CP2 of the second support member may satisfy: CP1 / T12 × (T23 / CP2) < 1.2. By reasonably arranging the focal lengths of the third lens, the fourth lens, and the focal lengths of other lenses, it is beneficial to achieve optical performance such as a large aperture and a long focal length of the optical imaging lens, ensuring better imaging effects when the optical imaging lens is in a dark field of view and shooting moving objects; in this case, the sensitivity of the second lens is higher than that of other lenses in the optical imaging lens. Reasonably configuring the effective focal length and Abbe number of the second lens can, to a certain extent, constrain the surface shape of the second lens, and at the same time, with a reasonable maximum thickness of the second support member, reduce the sensitivity of the surface shape of the second lens and improve the MTF yield of the optical imaging lens. The larger the air gap between the first lens and the second lens and the air gap between the second lens and the third lens, the easier it is to select the support member and the greater the space for stray light improvement. However, when the air gap is larger, the sensitivity of the air gap will also be greater. Therefore, by controlling the mutual relationship between the air gap between the first lens and the second lens on the optical axis, the air gap between the second lens and the third lens on the optical axis, the maximum thickness of the first support member, and the maximum thickness of the second support member, it is beneficial to control the air gap sensitivity within a reasonable range and improve the performance of the optical imaging lens.

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

[0080] The following describes in further detail, with reference to the accompanying drawings, specific embodiments of the optical imaging lens applicable to the above-described embodiments.

[0081] Example 1

[0082] The following is for reference Figure 2 Describes an optical imaging lens according to Embodiment 1 of this application.

[0083] like Figure 2 As shown, the optical imaging lens 100 includes a lens barrel assembly and a six-element lens group and a support assembly disposed within the lens barrel assembly. The lens barrel assembly includes a first lens barrel P01 and a second lens barrel P02. The six-element lens group, from the object side to the image side, includes, in sequence: 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. An aperture stop STO may be disposed between the object side and the first lens E1. The first lens E1, the second lens E2, and the third lens E3 form the first lens group, and the fourth lens E4, the fifth lens E5, and the sixth lens E6 form the second lens group. The first lens group is disposed within the first lens barrel P01, and the second lens group is disposed within the second lens barrel P02. The support assembly includes a first support P1, a first auxiliary support P1b, a second support P2, a fourth support P4, and a fifth support P5. The support component can block excess light from entering the next lens during the imaging process, while also allowing the lens and lens barrel assembly to better support each other, thus enhancing the structural stability of the optical imaging lens.

[0084] The first lens E1 has positive optical power, with its object-side surface S1 being convex and its image-side surface S2 being convex. The second lens E2 has negative optical power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive optical power, with its object-side surface S5 being convex and its image-side surface S6 being convex. The fourth lens E4 has negative optical power, with its object-side surface S7 being concave and its image-side surface S8 being convex. The fifth lens E5 has positive optical power, with its object-side surface S9 being convex and its image-side surface S10 being concave. The sixth lens E6 has negative optical power, with its object-side surface S11 being concave and its image-side surface S12 being concave. The filter has an object-side surface S13 (not shown) and an image-side surface S14 (not shown). Light from the object passes sequentially through each surface S1 to S14 and is finally imaged onto the imaging surface S15.

[0085] Table 1 shows the basic parameters of the optical imaging lens of Example 1, where the units for radius of curvature, thickness / distance, and focal length are millimeters (mm). The above parameters are mainly those of the optical imaging lens in close-up shooting mode.

[0086]

[0087]

[0088] Table 1

[0089] In this embodiment, the total effective focal length f of the optical imaging lens is 10.21 mm, the aperture number FNO of the optical imaging lens is 1.38, the maximum field of view FOV of the optical imaging lens is 25.88°, the effective focal length F1 of the first lens group is 8.88 mm, the effective focal length F2 of the second lens group is -10.56 mm, and the maximum effective half-aperture DT12 of the object side of the first lens is 3.83 mm.

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

[0091]

[0092] Where x is the distance vector from the vertex of the aspherical surface at a height of h along the optical axis; 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 i-th order correction coefficient of the aspherical surface. Table 2 gives the higher-order coefficients A4, A6, A8, A12 that can be used for each aspherical surface S1-S12 in Example 1. 10 A 12 A 14 A 16 A 18 A 20 A 22 A 24 A 26 A 28 and A 30 .

[0093] Face number A4 A6 A8 A10 A12 A14 A16 S1 2.1463E-04 3.5522E-06 -1.0286E-05 -1.7405E-06 7.0010E-07 2.6097E-07 -1.7658E-07 S2 3.6233E-03 7.0866E-05 -7.4320E-04 4.0637E-04 -1.2312E-04 2.4148E-05 -3.2188E-06 S3 -1.5150E-03 3.2351E-04 -1.6990E-03 1.0478E-03 -3.5336E-04 7.7072E-05 -1.1376E-05 S4 -5.3092E-03 8.6256E-04 -4.3202E-03 3.5381E-03 -1.6142E-03 4.9095E-04 -1.0546E-04 S5 -1.5220E-03 4.4754E-04 -1.8885E-03 1.2535E-03 -4.5070E-04 9.9871E-05 -1.2475E-05 S6 -4.9811E-04 2.0698E-03 -3.1536E-03 2.7408E-03 -1.5721E-03 6.3119E-04 -1.8162E-04 S7 6.4454E-02 -1.1217E-02 -9.1803E-03 1.7752E-02 -1.6256E-02 9.7391E-03 -4.0745E-03 S8 4.4394E-02 -2.4238E-02 6.0555E-02 -1.0718E-01 1.2725E-01 -1.0532E-01 6.2109E-02 S9 -3.4381E-02 2.0887E-03 8.3332E-03 -6.2405E-03 1.6377E-03 3.5393E-04 -4.2401E-04 S10 -2.9565E-02 -3.3349E-03 8.2561E-03 6.9792E-04 -8.0957E-03 7.8327E-03 -4.1551E-03 S11 -7.7621E-03 3.9876E-03 -2.7892E-02 5.4609E-02 -5.8983E-02 4.1127E-02 -1.9740E-02 S12 9.8387E-04 -1.3514E-02 1.7067E-02 -1.4617E-02 8.8967E-03 -3.9725E-03 1.3188E-03 Face number A18 A20 A22 A24 A26 A28 A30 S1 4.3296E-08 -6.1147E-09 5.4975E-10 -3.2097E-11 1.1830E-12 -2.5073E-14 2.3332E-16 S2 2.9505E-07 -1.8334E-08 7.3811E-10 -1.7367E-11 1.8124E-13 0.0000E+00 0.0000E+00 S3 1.1281E-06 -6.9800E-08 1.9262E-09 6.1297E-11 -7.4911E-12 2.6167E-13 -3.4026E-15 S4 1.6317E-05 -1.8193E-06 1.4419E-07 -7.8862E-09 2.8164E-10 -5.8861E-12 5.4408E-14 S5 2.5045E-07 2.0943E-07 -4.1165E-08 4.0426E-09 -2.3109E-10 7.3243E-12 -9.9911E-14 S6 3.7824E-05 -5.7000E-06 6.1464E-07 -4.6186E-08 2.2951E-09 -6.7744E-11 8.9874E-13 S7 1.2197E-03 -2.6297E-04 4.0523E-05 -4.3549E-06 3.1010E-07 -1.3150E-08 2.5137E-10 S8 -2.6389E-02 8.0918E-03 -1.7735E-03 2.7088E-04 -2.7384E-05 1.6467E-06 -4.4597E-08 S9 1.5173E-04 -2.9127E-05 3.0023E-06 -1.1444E-07 -5.4107E-09 4.7519E-10 0.0000E+00 S10 1.4221E-03 -3.2728E-04 5.0485E-05 -5.0139E-06 2.8994E-07 -7.4186E-09 0.0000E+00 S11 6.7135E-03 -1.6326E-03 2.8199E-04 -3.3759E-05 2.6607E-06 -1.2403E-07 2.5879E-09 S12 -3.2563E-04 5.9276E-05 -7.8114E-06 7.2202E-07 -4.4263E-08 1.6126E-09 -2.6380E-11

[0094] Table 2

[0095] Example 2

[0096] The following is for reference Figure 3 Describes an optical imaging lens according to Embodiment 2 of this application.

[0097] like Figure 3As shown, the optical imaging lens 200 includes a lens barrel assembly and a six-element lens group and a support assembly disposed within the lens barrel assembly. The lens barrel assembly includes a first lens barrel P01 and a second lens barrel P02. The six-element lens group, from the object side to the image side, includes, in sequence: 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. An aperture stop STO may be disposed between the object side and the first lens E1. The first lens E1, the second lens E2, and the third lens E3 form the first lens group, and the fourth lens E4, the fifth lens E5, and the sixth lens E6 form the second lens group. The first lens group is disposed within the first lens barrel P01, and the second lens group is disposed within the second lens barrel P02. The support assembly includes a first support P1, a first auxiliary support P1b, a second support P2, a fourth support P4, and a fifth support P5. The support component can block excess light from entering the next lens during the imaging process, while also allowing the lens and lens barrel assembly to better support each other, thus enhancing the structural stability of the optical imaging lens.

[0098] The lens structure in this embodiment is the same as that in Embodiment 1. Specifically, the basic parameter table of the optical imaging lens in this embodiment is the same as Table 1, and the aspherical coefficient table is the same as Table 2. The difference between this embodiment and Embodiment 1 lies in the structural dimensions of the first lens barrel P01, the second lens barrel P02, the first support member P1, the first auxiliary support member P1b, and the second support member P2. For example, parameters such as d1s, D1s, d2s, D2s, d1bs, d01s, d01m, D01m, d02s, D02s, EP01, CP1, EP12, CP2, L1, L2, and CP1b are different.

[0099] Example 3

[0100] The following is for reference Figure 4 Describes an optical imaging lens according to Embodiment 3 of this application.

[0101] like Figure 4As shown, the optical imaging lens 300 includes a lens barrel assembly and a six-element lens group and a support assembly disposed within the lens barrel assembly. The lens barrel assembly includes a first lens barrel P01 and a second lens barrel P02. The six-element lens group, from the object side to the image side, includes, in sequence: 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. An aperture stop STO can be disposed between the object side and the first lens E1. The first lens E1, the second lens E2, and the third lens E3 form the first lens group, and the fourth lens E4, the fifth lens E5, and the sixth lens E6 form the second lens group. The first lens group is disposed within the first lens barrel P01, and the second lens group is disposed within the second lens barrel P02. The support assembly includes a first support P1, a first auxiliary support P1b, a second support P2, a fourth support P4, and a fifth support P5. The support component can block excess light from entering the next lens during the imaging process, while also allowing the lens and lens barrel assembly to better support each other, thus enhancing the structural stability of the optical imaging lens.

[0102] The lens structure in this embodiment is the same as that in Embodiment 1. Specifically, the basic parameter table of the optical imaging lens in this embodiment is the same as Table 1, and the aspherical coefficient table is the same as Table 2. The difference between this embodiment and Embodiment 1 lies in the structural dimensions of the first lens barrel P01, the second lens barrel P02, the first support member P1, the first auxiliary support member P1b, and the second support member P2. For example, parameters such as d1s, D1s, d2s, D2s, d1bs, d01s, d01m, D01m, d02s, D02s, EP01, CP1, EP12, CP2, L1, L2, and CP1b are different.

[0103] Figure 5A The on-axis chromatic aberration curves of the optical imaging lenses of Examples 1, 2, and 3 are shown, which represent the deviation of the focal point of light of different wavelengths after passing through the optical imaging lenses. Figure 5B The astigmatism curves of the optical imaging lenses of Examples 1, 2, and 3 are shown, which represent the meridional image plane curvature and sagittal image plane curvature corresponding to different field of view angles. Figure 5C The distortion curves of the optical imaging lenses in Examples 1, 2, and 3 are shown, representing the distortion magnitude values ​​corresponding to different field of view angles. According to... Figures 5A to 5C It can be seen that the optical imaging lenses given in Examples 1, 2, and 3 can achieve good imaging quality.

[0104] Example 4

[0105] The following is for reference Figure 6 The optical imaging lens according to Embodiment 4 of this application is described.

[0106] like Figure 6As shown, the optical imaging lens 400 includes a lens barrel assembly and a six-element lens group and a support assembly disposed within the lens barrel assembly. The lens barrel assembly includes a first lens barrel P01 and a second lens barrel P02. The six-element lens group, from the object side to the image side, includes, in sequence: 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. An aperture stop STO may be disposed between the object side and the first lens E1. The first lens E1, the second lens E2, and the third lens E3 form the first lens group, and the fourth lens E4, the fifth lens E5, and the sixth lens E6 form the second lens group. The first lens group is disposed within the first lens barrel P01, and the second lens group is disposed within the second lens barrel P02. The support assembly includes a first support P1, a first auxiliary support P1b, a second support P2, a fourth support P4, and a fifth support P5. The support component can block excess light from entering the next lens during the imaging process, while also allowing the lens and lens barrel assembly to better support each other, thus enhancing the structural stability of the optical imaging lens.

[0107] The first lens E1 has positive optical power, with its object-side surface S1 being convex and its image-side surface S2 being convex. The second lens E2 has negative optical power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive optical power, with its object-side surface S5 being convex and its image-side surface S6 being convex. The fourth lens E4 has negative optical power, with its object-side surface S7 being concave and its image-side surface S8 being concave. The fifth lens E5 has positive optical power, with its object-side surface S9 being convex and its image-side surface S10 being concave. The sixth lens E6 has negative optical power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter has an object-side surface S13 (not shown) and an image-side surface S14 (not shown). Light from the object passes sequentially through each surface S1 to S14 and is finally imaged on the imaging surface S15.

[0108] Table 3 shows the basic parameters of the optical imaging lens in Example 4, where the units for radius of curvature, thickness / distance, and focal length are all millimeters (mm). These parameters are primarily those of the optical imaging lens in close-up shooting conditions.

[0109]

[0110]

[0111] Table 3

[0112] In this embodiment, the total effective focal length f of the optical imaging lens is 10.23 mm, the aperture number FNO of the optical imaging lens is 1.44, the maximum field of view FOV of the optical imaging lens is 22.60°, the effective focal length F1 of the first lens group is 8.84 mm, the effective focal length F2 of the second lens group is -10.62 mm, and the maximum effective half-aperture DT12 of the object side of the first lens is 3.55 mm.

[0113] In this embodiment, the object-side surface and image-side surface of any one of the lenses, from the first lens E1 to the sixth lens E6, are aspherical. Table 4 shows the higher-order coefficients A4, A6, A8, and A6 that can be used for the aspherical surfaces S1-S12 in Embodiment 4. 10 A 12 A 14 A 16 A 18 A 20 A 22 A 24 A 26 A 28 and A 30 .

[0114] Face number A4 A6 A8 A10 A12 A14 A16 S1 -4.9349E-04 -1.0337E-04 1.0509E-04 -5.5519E-05 1.9077E-05 -4.5149E-06 7.5545E-07 S2 -9.9782E-03 3.7367E-03 -1.0334E-03 2.4310E-04 -4.7315E-05 7.2845E-06 -8.5976E-07 S3 -5.2709E-02 1.5254E-02 -1.5688E-03 -6.4840E-04 3.5648E-04 -8.5276E-05 1.0416E-05 S4 -6.6252E-02 2.5231E-02 -7.9926E-03 2.4878E-03 -8.0833E-04 2.4892E-04 -6.4087E-05 S5 -1.2740E-02 1.3822E-03 3.5627E-04 -1.0763E-04 -2.7087E-05 2.5443E-05 -8.6556E-06 S6 5.1126E-04 -1.4600E-03 2.0136E-03 -1.6988E-03 1.0235E-03 -4.4488E-04 1.4083E-04 S7 -1.2710E-02 2.8183E-02 -2.2105E-02 1.4910E-02 -8.8554E-03 4.2098E-03 -1.4942E-03 S8 -4.0762E-02 3.7452E-02 -1.6997E-02 1.8593E-03 4.9549E-03 -5.1253E-03 2.7815E-03 S9 -3.8639E-02 8.8086E-03 -8.5449E-03 1.2589E-02 -1.1660E-02 7.1200E-03 -3.0352E-03 S10 -1.8662E-02 -1.6512E-02 7.8775E-03 6.3574E-03 -9.5033E-03 5.9935E-03 -2.4120E-03 S11 1.0877E-02 -4.1575E-02 2.1183E-02 2.6277E-03 -9.2614E-03 6.1287E-03 -2.4194E-03 S12 1.0235E-02 -2.9533E-02 2.3416E-02 -1.1669E-02 4.0797E-03 -1.0311E-03 1.7255E-04 Face number A18 A20 A22 A24 A26 A28 A30 S1 -9.0225E-08 7.6500E-09 -4.5007E-10 1.7478E-11 -4.0308E-13 4.1817E-15 0.0000E+00 S2 7.5576E-08 -4.7622E-09 2.0242E-10 -5.1824E-12 6.0244E-14 0.0000E+00 0.0000E+00 S3 -7.0784E-08 -2.0500E-07 3.7643E-08 -3.5907E-09 2.0216E-10 -6.3716E-12 8.7098E-14 S4 1.2755E-05 -1.8828E-06 2.0033E-07 -1.4856E-08 7.2666E-10 -2.1039E-11 2.7282E-13 S5 1.8373E-06 -2.6707E-07 2.7038E-08 -1.8737E-09 8.4499E-11 -2.2242E-12 2.5770E-14 S6 -3.2631E-05 5.5182E-06 -6.7216E-07 5.7329E-08 -3.2440E-09 1.0925E-10 -1.6553E-12 S7 3.8046E-04 -6.7028E-05 7.7318E-06 -5.2428E-07 1.5820E-08 0.0000E+00 0.0000E+00 S8 -9.5900E-04 2.1569E-04 -3.0714E-05 2.5174E-06 -9.0550E-08 0.0000E+00 0.0000E+00 S9 9.2550E-04 -2.0305E-04 3.1795E-05 -3.4684E-06 2.5060E-07 -1.0786E-08 2.0946E-10 S10 6.7067E-04 -1.3129E-04 1.8043E-05 -1.7082E-06 1.0659E-07 -3.9699E-09 6.7297E-11 S11 6.4647E-04 -1.1982E-04 1.5296E-05 -1.3088E-06 7.1040E-08 -2.1857E-09 2.8556E-11 S12 -1.1503E-05 -2.4722E-06 8.1896E-07 -1.1227E-07 8.6152E-09 -3.6043E-10 6.4248E-12

[0115] Table 4

[0116] Example 5

[0117] The following is for reference Figure 7 Describes an optical imaging lens according to Embodiment 5 of this application.

[0118] like Figure 7 As shown, the optical imaging lens 500 includes a lens barrel assembly and a six-element lens group and a support assembly disposed within the lens barrel assembly. The lens barrel assembly includes a first lens barrel P01 and a second lens barrel P02. The six-element lens group, from the object side to the image side, includes, in sequence: 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. An aperture stop STO may be disposed between the object side and the first lens E1. The first lens E1, the second lens E2, and the third lens E3 form the first lens group, and the fourth lens E4, the fifth lens E5, and the sixth lens E6 form the second lens group. The first lens group is disposed within the first lens barrel P01, and the second lens group is disposed within the second lens barrel P02. The support assembly includes a first support P1, a first auxiliary support P1b, a second support P2, a fourth support P4, and a fifth support P5. The support component can block excess light from entering the next lens during the imaging process, while also allowing the lens and lens barrel assembly to better support each other, thus enhancing the structural stability of the optical imaging lens.

[0119] The lens structure in this embodiment is the same as that in Embodiment 4. Specifically, the basic parameter table of the optical imaging lens in this embodiment is the same as Table 3, and the aspherical coefficient table is the same as Table 4. The difference between this embodiment and Embodiment 4 lies in the structural dimensions of the first lens barrel P01, the second lens barrel P02, the first support member P1, the first auxiliary support member P1b, and the second support member P2. For example, the parameters d1s, D1s, d2s, D2s, d1bs, d01s, d01m, D01m, d02s, D02s, EP01, CP1, EP12, CP2, L1, L2, and CP1b are different.

[0120] Example 6

[0121] The following is for reference Figure 8 Describes an optical imaging lens according to Embodiment 6 of this application.

[0122] like Figure 8 As shown, the optical imaging lens 600 includes a lens barrel assembly and a six-element lens group and a support assembly disposed within the lens barrel assembly. The lens barrel assembly includes a first lens barrel P01 and a second lens barrel P02. The six-element lens group, from the object side to the image side, includes, in sequence: 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. An aperture stop STO may be disposed between the object side and the first lens E1. The first lens E1, the second lens E2, and the third lens E3 form the first lens group, and the fourth lens E4, the fifth lens E5, and the sixth lens E6 form the second lens group. The first lens group is disposed within the first lens barrel P01, and the second lens group is disposed within the second lens barrel P02. The support assembly includes a first support P1, a first auxiliary support P1b, a second support P2, a fourth support P4, and a fifth support P5. The support component can block excess light from entering the next lens during the imaging process, while also allowing the lens and lens barrel assembly to better support each other, thus enhancing the structural stability of the optical imaging lens.

[0123] The lens structure in this embodiment is the same as that in Embodiment 4. Specifically, the basic parameter table of the optical imaging lens in this embodiment is the same as Table 3, and the aspherical coefficient table is the same as Table 4. The difference between this embodiment and Embodiment 4 lies in the structural dimensions of the first lens barrel P01, the second lens barrel P02, the first support member P1, the first auxiliary support member P1b, and the second support member P2. For example, the parameters d1s, D1s, d2s, D2s, d1bs, d01s, d01m, D01m, d02s, D02s, EP01, CP1, EP12, CP2, L1, L2, and CP1b are different.

[0124] Figure 9AThe on-axis chromatic aberration curves of the optical imaging lenses of Examples 4, 5, and 6 are shown, which represent the deviation of the focal point of light of different wavelengths after passing through the optical imaging lenses. Figure 9B The astigmatism curves of the optical imaging lenses of Examples 4, 5, and 6 are shown, which represent the meridional image plane curvature and sagittal image plane curvature corresponding to different field of view angles. Figure 9C The distortion curves of the optical imaging lenses in Examples 4, 5, and 6 are shown, representing the distortion magnitude values ​​corresponding to different field of view angles. According to... Figures 9A to 9C It can be seen that the optical imaging lenses given in Examples 4, 5, and 6 can achieve good imaging quality.

[0125] Example 7

[0126] The following is for reference Figure 10 Describes an optical imaging lens according to Embodiment 7 of this application.

[0127] like Figure 10 As shown, the optical imaging lens 700 includes a lens barrel assembly and a six-element lens group and a support assembly disposed within the lens barrel assembly. The lens barrel assembly includes a first lens barrel P01 and a second lens barrel P02. The six-element lens group, from the object side to the image side, includes, in sequence: 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. An aperture stop STO may be disposed between the object side and the first lens E1. The first lens E1, the second lens E2, and the third lens E3 form the first lens group, and the fourth lens E4, the fifth lens E5, and the sixth lens E6 form the second lens group. The first lens group is disposed within the first lens barrel P01, and the second lens group is disposed within the second lens barrel P02. The support assembly includes a first support P1, a first auxiliary support P1b, a second support P2, a fourth support P4, and a fifth support P5. The support component can block excess light from entering the next lens during the imaging process, while also allowing the lens and lens barrel assembly to better support each other, thus enhancing the structural stability of the optical imaging lens.

[0128] The first lens E1 has positive optical power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has negative optical power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive optical power, with its object-side surface S5 being convex and its image-side surface S6 being convex. The fourth lens E4 has negative optical power, with its object-side surface S7 being convex and its image-side surface S8 being concave. The fifth lens E5 has positive optical power, with its object-side surface S9 being convex and its image-side surface S10 being concave. The sixth lens E6 has negative optical power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter has an object-side surface S13 (not shown) and an image-side surface S14 (not shown). Light from the object passes sequentially through each surface S1 to S14 and is finally imaged on the imaging surface S15.

[0129] Table 5 shows the basic parameters of the optical imaging lens of Example 7, where the units for radius of curvature, thickness / distance, and focal length are millimeters (mm). The above parameters are mainly those of the optical imaging lens in close-up shooting mode.

[0130]

[0131] Table 5

[0132] In this embodiment, the total effective focal length f of the optical imaging lens is 9.68 mm, the aperture number FNO of the optical imaging lens is 1.37, the maximum field of view FOV of the optical imaging lens is 26.00°, the effective focal length F1 of the first lens group is 8.75 mm, the effective focal length F2 of the second lens group is -9.59 mm, and the maximum effective half-aperture DT12 of the object side of the first lens is 3.64 mm.

[0133] In this embodiment, the object-side surface and image-side surface of any one of the lenses, from the first lens E1 to the sixth lens E6, are aspherical. Table 6 shows the higher-order coefficients A4, A6, A8, and A6 that can be used for the aspherical surfaces S1-S12 in Embodiment 7. 10 A 12 A 14 A 16 A 18 A 20 A 22 A 24 A 26 A 28 and A 30 .

[0134] Face number A4 A6 A8 A10 A12 A14 A16 S1 -5.1146E-04 -3.3026E-04 2.5863E-04 -1.2105E-04 3.7213E-05 -7.9013E-06 1.1883E-06 S2 -3.6507E-03 3.9403E-04 -3.5022E-05 -1.4932E-05 6.8860E-06 -1.2767E-06 1.2572E-07 S3 -9.4886E-03 8.6661E-04 1.0719E-03 -9.4751E-04 4.0357E-04 -1.0851E-04 1.9925E-05 S4 -2.9045E-02 9.0562E-03 -7.2916E-04 -1.1939E-04 -5.7744E-04 5.0853E-04 -2.0220E-04 S5 -2.2393E-02 5.6626E-03 3.9405E-04 6.0925E-05 -9.7081E-04 7.0902E-04 -2.6093E-04 S6 7.7540E-04 -6.0520E-04 7.1828E-04 -2.9739E-04 -3.4516E-05 9.1943E-05 -4.6187E-05 S7 -7.3852E-03 3.3565E-03 9.9097E-03 -1.1137E-02 6.0007E-03 -1.8815E-03 2.9646E-04 S8 -3.2322E-02 4.0256E-03 2.2913E-02 -2.5713E-02 1.6757E-02 -7.7594E-03 2.6470E-03 S9 -2.7199E-02 -9.3312E-03 1.5418E-02 -7.9179E-03 2.2498E-03 -3.7767E-04 3.4289E-05 S10 -8.4595E-03 -2.1537E-02 2.4332E-02 -1.3052E-02 4.2421E-03 -8.8495E-04 1.1570E-04 S11 -2.2456E-02 7.4221E-03 -6.5113E-02 1.3576E-01 -1.5105E-01 1.0880E-01 -5.4521E-02 S12 -1.4875E-02 -2.7457E-02 3.4259E-02 -2.3252E-02 1.0303E-02 -3.1458E-03 6.7404E-04 Face number A18 A20 A22 A24 A26 A28 A30 S1 -1.2762E-07 9.7192E-09 -5.1227E-10 1.7752E-11 -3.6351E-13 3.3307E-15 0.0000E+00 S2 -6.1283E-09 5.5352E-11 6.9734E-12 -2.0829E-13 0.0000E+00 0.0000E+00 0.0000E+00 S3 -2.5733E-06 2.3470E-07 -1.4847E-08 6.2104E-10 -1.5464E-11 1.7362E-13 0.0000E+00 S4 4.8536E-05 -7.6809E-06 8.2422E-07 -5.9619E-08 2.7918E-09 -7.6579E-11 9.3570E-13 S5 5.9826E-05 -9.1656E-06 9.5857E-07 -6.7820E-08 3.1123E-09 -8.3746E-11 1.0042E-12 S6 1.3114E-05 -2.4200E-06 3.0132E-07 -2.5210E-08 1.3614E-09 -4.2926E-11 6.0081E-13 S7 1.2088E-05 -1.7044E-05 3.9203E-06 -4.6717E-07 2.9766E-08 -8.0402E-10 0.0000E+00 S8 -6.5898E-04 1.1593E-04 -1.3594E-05 9.5033E-07 -2.9887E-08 0.0000E+00 0.0000E+00 S9 -1.1403E-06 -2.0084E-08 -3.9160E-10 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S10 -8.5508E-06 2.5848E-07 1.4931E-09 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 S11 1.9578E-02 -5.0801E-03 9.4518E-04 -1.2297E-04 1.0620E-05 -5.4688E-07 1.2706E-08 S12 -1.0096E-04 1.0281E-05 -6.6253E-07 2.1653E-08 9.0065E-11 -3.1482E-11 7.6009E-13

[0135] Table 6

[0136] Example 8

[0137] The following is for reference Figure 11 Describes an optical imaging lens according to Embodiment 8 of this application.

[0138] like Figure 11As shown, the optical imaging lens 800 includes a lens barrel assembly and a six-element lens group and a support assembly disposed within the lens barrel assembly. The lens barrel assembly includes a first lens barrel P01 and a second lens barrel P02. The six-element lens group, from the object side to the image side, includes, in sequence: 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. An aperture stop STO may be disposed between the object side and the first lens E1. The first lens E1, the second lens E2, and the third lens E3 form the first lens group, and the fourth lens E4, the fifth lens E5, and the sixth lens E6 form the second lens group. The first lens group is disposed within the first lens barrel P01, and the second lens group is disposed within the second lens barrel P02. The support assembly includes a first support P1, a first auxiliary support P1b, a second support P2, a fourth support P4, and a fifth support P5. The support component can block excess light from entering the next lens during the imaging process, while also allowing the lens and lens barrel assembly to better support each other, thus enhancing the structural stability of the optical imaging lens.

[0139] The lens structure in this embodiment is the same as that in Embodiment 7. Specifically, the basic parameter table of the optical imaging lens in this embodiment is the same as Table 5, and the aspherical coefficient table is the same as Table 6. The difference between this embodiment and Embodiment 7 lies in the structural dimensions of the first lens barrel P01, the second lens barrel P02, the first support member P1, the first auxiliary support member P1b, and the second support member P2. For example, the parameters d1s, D1s, d2s, D2s, d1bs, d01s, d01m, D01m, d02s, D02s, EP01, CP1, EP12, CP2, L1, L2, and CP1b are different.

[0140] Example 9

[0141] The following is for reference Figure 12 Describes an optical imaging lens according to Embodiment 9 of this application.

[0142] like Figure 12As shown, the optical imaging lens 900 includes a lens barrel assembly and a six-element lens group and a support assembly disposed within the lens barrel assembly. The lens barrel assembly includes a first lens barrel P01 and a second lens barrel P02. The six-element lens group, from the object side to the image side, includes, in sequence: 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. An aperture stop STO may be disposed between the object side and the first lens E1. The first lens E1, the second lens E2, and the third lens E3 form the first lens group, and the fourth lens E4, the fifth lens E5, and the sixth lens E6 form the second lens group. The first lens group is disposed within the first lens barrel P01, and the second lens group is disposed within the second lens barrel P02. The support assembly includes a first support P1, a first auxiliary support P1b, a second support P2, a fourth support P4, and a fifth support P5. The support component can block excess light from entering the next lens during the imaging process, while also allowing the lens and lens barrel assembly to better support each other, thus enhancing the structural stability of the optical imaging lens.

[0143] The lens structure in this embodiment is the same as that in Embodiment 7. Specifically, the basic parameter table of the optical imaging lens in this embodiment is the same as Table 5, and the aspherical coefficient table is the same as Table 6. The difference between this embodiment and Embodiment 7 lies in the structural dimensions of the first lens barrel P01, the second lens barrel P02, the first support member P1, the first auxiliary support member P1b, and the second support member P2. For example, the parameters d1s, D1s, d2s, D2s, d1bs, d01s, d01m, D01m, d02s, D02s, EP01, CP1, EP12, CP2, L1, L2, and CP1b are different.

[0144] Figure 13A The on-axis chromatic aberration curves of the optical imaging lenses of embodiments 7, 8, and 9 are shown, which represent the deflection of the focal point of light of different wavelengths after passing through the optical imaging lens. Figure 13B The astigmatism curves of the optical imaging lenses of Examples 7, 8, and 9 are shown, which represent the meridional image plane curvature and sagittal image plane curvature corresponding to different field of view angles. Figure 13C The distortion curves of the optical imaging lenses in Examples 7, 8, and 9 are shown, representing the distortion magnitude values ​​corresponding to different field of view angles. According to... Figures 13A to 13C It can be seen that the optical imaging lenses given in Examples 7, 8, and 9 can achieve good imaging quality.

[0145] Table 7 shows the values ​​of parameters d1s, D1s, d2s, D2s, d01s, d01m, D01m, d02s, D02s, EP01, CP1, EP12, CP2, d1bs, CP1b, L1, and L2 for each embodiment in Examples 1-9. These parameters can be calculated according to... Figure 1The measurements were obtained using the annotation method shown, and the units for all parameters listed in Table 7 are mm.

[0146]

[0147]

[0148] Table 7

[0149] Table 8 shows the values ​​of the conditional expressions for each of the embodiments in Examples 1 to 9.

[0150] Conditional / Example 1 2 3 4 5 6 7 8 9 (T12+T23) / (D2s-D1s) -1.96 -1.96 -1.96 -2.54 -2.54 -2.54 -4.13 -4.13 -4.12 (R3+R4) / d2s 1.29 1.28 1.28 2.19 2.17 2.17 1.21 1.21 1.16 L1 / L2 2.10 2.10 2.10 2.17 2.17 2.17 2.33 2.33 2.33 |(d01m+d02s) / (f3+f4)| 5.54 5.27 5.32 18.33 18.33 18.33 6.62 6.62 6.62 (d01s-d02s) / FNO 3.11 3.30 3.22 3.35 3.35 3.35 3.14 3.14 3.14 (L1-L2) / (F1+F2) -2.24 -2.24 -2.24 -2.26 -2.26 -2.26 -5.42 -5.42 -5.42 (D02s-d02s) / (D01m-d01m) 1.60 1.46 1.41 1.65 1.65 1.65 0.92 0.92 0.92 R6 / R5 -1.26 -1.26 -1.26 -1.05 -1.05 -1.05 -1.86 -1.86 -1.86 (L1-EP01-CP1-EP12-CP2) / CT3 0.77 0.72 0.68 1.21 1.21 1.21 0.61 0.61 0.61 f2 / (V2×CP2) -16.01 -16.01 -16.01 -8.97 -8.97 -8.97 -19.07 -19.07 -19.07 (d1s-d2s) / (N2-N1) 5.02 4.40 4.40 6.70 6.81 5.56 2.20 3.20 -0.72 CP1 / T12×(T23 / CP2) 1.03 1.03 1.03 1.05 1.05 1.05 0.12 0.12 0.12 V1 / (DT12 / d1s) 106.89 106.01 106.01 108.31 109.26 107.68 108.30 110.91 107.39 (CP1+CP1b) / T12 1.50 1.60 1.64 0.82 0.82 0.82 0.90 0.90 0.90 (R1+R2) / R3 -15.94 -15.94 -15.94 -0.93 -0.93 -0.93 3.01 3.01 3.01 d1s / d1bs 0.90 0.90 0.92 0.91 0.92 0.91 0.89 0.92 0.88

[0151] Table 8

[0152] This application also provides an imaging device, wherein the electronic photosensitive element can be a photocoupled device (CCD) or a complementary metal oxide semiconductor device (CMOS). The imaging device can be a stand-alone imaging device such as a digital camera, or an imaging module integrated into a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.

[0153] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An optical imaging lens, characterized in that, include: A six-element lens group includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens arranged sequentially along the optical axis from the object side to the image side, wherein the absolute value of the effective focal length of the third lens or the fourth lens is less than the absolute value of the effective focal length of any lens in the six-element lens group other than the third lens or the fourth lens. The support assembly includes a first support member placed on and in contact with the image side of the first lens and a second support member placed on and in contact with the image side of the second lens. and The lens barrel assembly, in which the six-element lens group and the support assembly are housed, is a lens barrel assembly. The aperture number (FNO) of the optical imaging lens satisfies: 1.37 ≤ FNO < 1.6, and the maximum field of view (FOV) of the optical imaging lens satisfies: 20°. <FOV≤26.00°, The radius of curvature R3 of the object-side surface of the second lens, the radius of curvature R4 of the image-side surface of the second lens, and the inner diameter d2s of the object-side surface of the second bearing member satisfy: 1.16≤(R3+R4) / d2s≤2.

19. The air gap T12 between the first lens and the second lens on the optical axis, the air gap T23 between the second lens and the third lens on the optical axis, the outer diameter D1s of the object side of the first support member and the outer diameter D2s of the object side of the second support member satisfy: -4.13≤(T12+T23) / (D2s-D1s)≤-1.96; The optical imaging lens has six lenses with optical power. The first lens has positive optical power and its object side is convex. The second lens has negative optical power, with its object side being convex and its image side being concave. The third lens has positive optical power, and its object side is convex, as is its image side; The fourth lens has negative optical power. The fifth lens has positive optical power, and its object side is convex and its image side is concave. The sixth lens has negative optical power and its image side is concave.

2. The optical imaging lens according to claim 1, characterized in that, The lens barrel assembly includes a first lens barrel and a second lens barrel arranged along the optical axis from the object side to the image side, and the length L1 of the first lens barrel in the direction of the optical axis and the length L2 of the second lens barrel in the direction of the optical axis satisfy: 2.10≤L1 / L2≤2.

33.

3. The optical imaging lens according to claim 2, characterized in that, The first lens, the second lens, and the third lens are placed in the first lens barrel, and the fourth lens, the fifth lens, and the sixth lens are placed in the second lens barrel.

4. The optical imaging lens according to claim 3, characterized in that, The inner diameter d01m of the image-side end face of the first lens tube, the inner diameter d02s of the object-side end face of the second lens tube, the effective focal length f3 of the third lens, and the effective focal length f4 of the fourth lens satisfy: 5.27≤|(d01m+d02s) / (f3+f4)|≤18.

33.

5. The optical imaging lens according to claim 2, characterized in that, The inner diameter d01s of the object-side end face of the first lens barrel, the inner diameter d02s of the object-side end face of the second lens barrel, and the aperture number FNO of the optical imaging lens satisfy the following condition: 3.11mm≤(d01s-d02s) / FNO≤3.35mm.

6. The optical imaging lens according to claim 2, characterized in that, The first lens, the second lens, and the third lens form a first lens group, and the fourth lens, the fifth lens, and the sixth lens form a second lens group. Wherein, the length L1 of the first lens barrel in the direction of the optical axis, the length L2 of the second lens barrel in the direction of the optical axis, the effective focal length F1 of the first lens group and the effective focal length F2 of the second lens group satisfy: -5.42≤(L1-L2) / (F1+F2)≤-2.

24.

7. The optical imaging lens according to claim 2, characterized in that, The inner diameter d01m of the image-side end face of the first lens tube, the outer diameter D01m of the image-side end face of the first lens tube, the inner diameter d02s of the object-side end face of the second lens tube, and the outer diameter D02s of the object-side end face of the second lens tube satisfy: 0.92≤(D02s-d02s) / (D01m-d01m)≤1.

65.

8. The optical imaging lens according to claim 2, characterized in that, The radius of curvature R5 of the object-side surface of the third lens and the radius of curvature R6 of the image-side surface of the third lens satisfy: -1.86 ≤ R6 / R5 ≤ -1.

05. The distance EP01 between the object-side end face of the first lens barrel and the first support member along the optical axis, the distance EP12 between the first support member and the second support member along the optical axis, the length L1 of the first lens barrel in the direction of the optical axis, the maximum thickness CP1 of the first support member, the maximum thickness CP2 of the second support member, and the center thickness CT3 of the third lens on the optical axis satisfy: 0.61≤(L1-EP01-CP1-EP12-CP2) / CT3≤1.

21.

9. The optical imaging lens according to claim 1, characterized in that, The effective focal length f2 of the second lens, the Abbe number V2 of the second lens, and the maximum thickness CP2 of the second support member satisfy: -19.07≤f2 / (V2×CP2)≤-8.

97.

10. The optical imaging lens according to claim 1, characterized in that, The inner diameter d1s of the object side of the first support member, the inner diameter d2s of the object side of the second support member, the refractive index N1 of the first lens and the refractive index N2 of the second lens satisfy: -0.72mm≤(d1s-d2s) / (N2-N1)≤6.81mm.

11. The optical imaging lens according to claim 1, characterized in that, The air gap T12 between the first lens and the second lens on the optical axis, the air gap T23 between the second lens and the third lens on the optical axis, the maximum thickness CP1 of the first support member and the maximum thickness CP2 of the second support member satisfy: 0.12≤CP1 / T12×(T23 / CP2)≤1.

05.

12. The optical imaging lens according to claim 1, characterized in that, The Abbe number V1 of the first lens, the maximum effective half-aperture DT12 of the object side of the first lens, and the inner diameter d1s of the object side of the first support member satisfy: 106.01≤V1 / (DT12 / d1s)≤110.

91.

13. The optical imaging lens according to claim 1, characterized in that, The support assembly further includes a first auxiliary support member disposed on the image-side surface of the first support member and in contact with the image-side surface of the first support member. Wherein, the air gap T12 between the first lens and the second lens on the optical axis, the maximum thickness CP1 of the first support member and the maximum thickness CP1b of the first auxiliary support member satisfy: 0.82≤(CP1+CP1b) / T12≤1.

64.

14. The optical imaging lens according to claim 1, characterized in that, The support assembly further includes a first auxiliary support member disposed on the image-side surface of the first support member and in contact with the image-side surface of the first support member. Wherein, the radius of curvature R1 of the object side of the first lens, the radius of curvature R2 of the image side of the first lens, and the radius of curvature R3 of the object side of the second lens satisfy: -15.94≤(R1+R2) / R3≤3.01, The inner diameter d1s of the object side of the first support member and the inner diameter d1bs of the object side of the first auxiliary support member satisfy: 0.88≤d1s / d1bs≤0.

92.

15. The optical imaging lens according to any one of claims 1-14, characterized in that, The air gap between the third lens and the fourth lens on the optical axis is variable, and the variable is less than 3 mm.

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