Optical imaging lens

Abstract

The present application discloses an optical imaging lens, which includes, in order from the object side to the image side along the optical axis: a first lens having negative optical power; a second lens having negative optical power; a third lens having positive optical power; a fourth lens having positive optical power; a fifth lens having negative optical power; and a sixth lens having positive optical power. The Abbe number V3 of the third lens, the Abbe number V4 of the fourth lens, the effective focal length f3 of the third lens, and the effective focal length f4 of the fourth lens satisfy the following conditions: 0.5<(V4-V3)×(f3-f4) / (f3+f4)<1.5. Any two adjacent lenses among the first to sixth lenses are separated by a spacing distance.

Description

Technical Field

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

[0002] In recent years, as the market for smart wearable devices continues to grow in popularity, consumers have increasingly demanded higher performance from the optical imaging lenses used in these devices. Because the temperature of smart wearable devices fluctuates during use, these temperature increases or decreases can affect the performance of the optical imaging lenses, thereby impacting the consumer experience. Therefore, reducing the temperature sensitivity of optical imaging lenses is a pressing technical issue facing those skilled in the art. Summary of the Invention

[0003] The present application provides an optical imaging lens, which includes, in order from the object side to the image side along the optical axis: a first lens having negative optical power; a second lens having negative optical power; a third lens having positive optical power; a fourth lens having positive optical power; a fifth lens having negative optical power; and a sixth lens having positive optical power; wherein the Abbe number V3 of the third lens, the Abbe number V4 of the fourth lens, the effective focal length f3 of the third lens, and the effective focal length f4 of the fourth lens satisfy the following conditions: 0.5<(V4-V3)×(f3-f4) / (f3+f4)<1.5; and any two adjacent lenses among the first to sixth lenses are separated by a spacing distance.

[0004] In some embodiments, the spacing distance T12 between the first lens and the second lens on the optical axis, the center thickness CT1 of the first lens on the optical axis, the curvature radius R1 of the object side surface of the first lens, and the curvature radius R2 of the image side surface of the first lens satisfy: 5.0 <T12 / CT1+R1 / R2<6.0。

[0005] In some embodiments, a curvature radius R3 of the object-side surface of the second lens, a curvature radius R4 of the image-side surface of the second lens, an effective focal length f2 of the second lens, and an Abbe number V2 of the second lens satisfy: 0<(R3+R4) / (f2 / V2)<2.0.

[0006] In some embodiments, a center thickness CT4 of the fourth lens on the optical axis, a curvature radius R7 of the object-side surface of the fourth lens, a curvature radius R8 of the image-side surface of the fourth lens, and a spacing distance T45 between the fourth lens and the fifth lens on the optical axis satisfy: 3.5<CT4×(R7-R8) / ((R7+R8)×T45)<9.5.

[0007] In some embodiments, the effective focal length f5 of the fifth lens, the refractive index N5 of the fifth lens, and the curvature radius R9 of the object-side surface of the fifth lens satisfy: 3.0<f5×N5 / R9<4.0.

[0008] In some embodiments, the center thickness CT5 of the fifth lens on the optical axis, the Abbe number V6 of the sixth lens, the Abbe number V5 of the fifth lens, the curvature radius R10 of the image-side surface of the fifth lens, and the curvature radius R11 of the object-side surface of the sixth lens satisfy: -5.5<CT5×(V6-V5) / (R10+R11)<-3.0.

[0009] In some embodiments, the combined focal length f123 of the first lens, the second lens, and the third lens, the center thickness CT1 of the first lens on the optical axis, the center thickness CT2 of the second lens on the optical axis, and the center thickness CT3 of the third lens on the optical axis satisfy: 3.0<f123 / (CT1+CT2+CT3)<4.0.

[0010] In some embodiments, a distance T56 between the fifth lens and the sixth lens on the optical axis and a distance SAG62 from the intersection of the image side surface of the sixth lens and the optical axis to the vertex of the effective radius of the image side surface of the sixth lens on the optical axis satisfy: 2.0<T56 / SAG62<7.0.

[0011] In some embodiments, the spacing distance T45 between the fourth lens and the fifth lens on the optical axis, the distance SAG41 from the intersection of the object side surface of the fourth lens and the optical axis to the vertex of the effective radius of the object side surface of the fourth lens on the optical axis, and the distance SAG42 from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the effective radius of the image side surface of the fourth lens on the optical axis satisfy: 0.5<T45 / (SAG41+|SAG42|)<1.5.

[0012] In some embodiments, the spacing distance T12 between the first lens and the second lens on the optical axis, the spacing distance T23 between the second lens and the third lens on the optical axis, the center thickness CT1 of the first lens on the optical axis, and the center thickness CT2 of the second lens on the optical axis satisfy: 1.5<(T12+T23) / (CT1+CT2)<2.5.

[0013] In some embodiments, the effective focal length f6 of the sixth lens, the refractive index N6 of the sixth lens, the curvature radius R11 of the object-side surface of the sixth lens, and the curvature radius R12 of the image-side surface of the sixth lens satisfy: 1.5<f6×N6 / (R11+R12)<3.5.

[0014] In some embodiments, the effective focal length f6 of the sixth lens, the separation distance T56 between the fifth lens and the sixth lens on the optical axis, and the center thickness CT6 of the sixth lens on the optical axis satisfy: 5.0<f6 / (T56+CT6)<8.0.

[0015] In some embodiments, the distance TD between the object side surface of the first lens and the image side surface of the sixth lens on the optical axis, half of the maximum field of view angle Semi-FOV of the optical imaging lens, the total effective focal length f of the optical imaging lens, and the aperture value Fno of the optical imaging lens satisfy the following conditions: 2.5 <TD×Tan(Semi-FOV) / (f×Fno)<4.0。

[0016] This application utilizes a six-element optical imaging lens architecture. By rationally allocating the optical power of each lens and ensuring that the optical imaging lens satisfies the requirement of 0.5 < (V4-V3) × (f3-f4) / (f3+f4) < 1.5, it effectively corrects off-axis aberrations and compensates for temperature drift within a temperature range of -20° to 60°, thereby reducing the optical imaging lens's sensitivity to temperature and balancing its optical performance under different operating temperature conditions. For example, when this optical imaging lens is incorporated into a smart wearable device, it can help reduce the impact of temperature changes on the performance of the optical imaging lens, thereby enhancing the consumer experience with the smart wearable device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figure 1 1. A schematic structural diagram of the optical imaging lens of Example 1 is shown;

[0019] Figures 2A to 2C axial chromatic aberration curve, astigmatism curve, and magnification chromatic aberration curve of the optical imaging lens of Example 1 are respectively shown;

[0020] Figure 3 FIG2 shows a schematic structural diagram of an optical imaging lens according to Example 2;

[0021] Figures 4A to 4C axial chromatic aberration curve, astigmatism curve, and magnification chromatic aberration curve of the optical imaging lens of Example 2 are respectively shown;

[0022] Figure 5 FIG2 shows a schematic structural diagram of an optical imaging lens according to Example 3;

[0023] Figures 6A to 6C axial chromatic aberration curve, astigmatism curve, and magnification chromatic aberration curve of the optical imaging lens of Example 3 are respectively shown;

[0024] Figure 7 1. A schematic structural diagram of an optical imaging lens according to Example 4 is shown;

[0025] Figures 8A to 8C axial chromatic aberration curve, astigmatism curve, and lateral chromatic aberration curve of the optical imaging lens of Example 4 are respectively shown;

[0026] Figure 9 FIG2 shows a schematic structural diagram of an optical imaging lens according to Example 5;

[0027] Figures 10A to 10C axial chromatic aberration curve, astigmatism curve, and lateral chromatic aberration curve of the optical imaging lens of Example 5 are respectively shown;

[0028] Figure 11 FIG2 shows a schematic structural diagram of an optical imaging lens according to Example 6;

[0029] 12A to 12C axial chromatic aberration curve, astigmatism curve, and lateral chromatic aberration curve of the optical imaging lens of Example 6 are respectively shown;

[0030] Figure 13 A schematic structural diagram of the optical imaging lens of Example 7 is shown; and

[0031] 14A to 14C The axial chromatic aberration curve, astigmatism curve, and magnification chromatic aberration curve of the optical imaging lens of Example 7 are respectively shown. DETAILED DESCRIPTION

[0032] For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely descriptions of exemplary embodiments of the present application and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0033] It should be noted that in this specification, the terms "first," "second," "third," etc., are used solely to distinguish one feature from another and do not limit the features. Thus, the first lens discussed below could also be referred to as the second lens or the third lens without departing from the teachings of this application.

[0034] In the drawings, the thickness, size, and shape of the lenses are slightly exaggerated for ease of illustration. Specifically, the shapes of the spherical and aspherical surfaces shown in the drawings are provided by way of example. That is, the shapes of the spherical and aspherical surfaces are not limited to those shown in the drawings. The drawings are for illustration only and are not drawn strictly to scale.

[0035] In this article, the paraxial region refers to the area near the optical axis. If a lens surface is convex and the location of the convex surface is undefined, it means that the lens surface is convex at least in the paraxial region. If a lens surface is concave and the location of the concave surface is undefined, 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.

[0036] It should also be understood that the terms "comprises," "including," "having," "includes," and / or "comprising," when used in this specification, indicate the presence of the stated features, elements, and / or components, but do not preclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire list of features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application." And, the term "exemplary" is intended to refer to an example or illustration.

[0037] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and will not be interpreted in an idealized or overly formal sense unless expressly defined as such herein.

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The following examples only express several implementation methods of the present application, and their descriptions are relatively specific and detailed, but they should not be understood as limiting the scope of the patent of this application. It should be pointed out that for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all fall within the scope of protection of the present application. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0039] The features, principles and other aspects of the present application are described in detail below.

[0040] An optical imaging lens according to an exemplary embodiment of the present application may include six lenses having optical power, namely a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. These six lenses are arranged sequentially along the optical axis from the object side to the image side. Any two adjacent lenses among the first through sixth lenses may be spaced apart by a distance.

[0041] In an exemplary embodiment, the first lens may have a negative optical power; the second lens may have a negative optical power; the third lens may have a positive optical power; the fourth lens may have a positive optical power; the fifth lens may have a negative optical power; the sixth lens may have a positive optical power.

[0042] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 0.5 < (V4 - V3) × (f3 - f4) / (f3 + f4) < 1.5, where V3 is the Abbe number of the third lens, V4 is the Abbe number of the fourth lens, f3 is the effective focal length of the third lens, and f4 is the effective focal length of the fourth lens. The optical imaging lens satisfying 0.5 < (V4 - V3) × (f3 - f4) / (f3 + f4) < 1.5 can effectively correct off-axis aberrations and can also play a role in temperature drift compensation within a temperature range of -20° to 60°, thereby reducing the sensitivity of the optical imaging lens to temperature and being beneficial to balancing the optical performance of the optical imaging lens under different operating temperature conditions. For example, when the optical imaging lens is mounted on a smart wearable device, it is beneficial to reduce the impact of temperature changes on the performance of the optical imaging lens, thereby enhancing the user experience of the smart wearable device for consumers. More specifically, V4, V3, f3, and f4 may further satisfy: 0.5 < (V4 - V3) × (f3 - f4) / (f3 + f4) < 1.4.

[0043] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 5.0 < T12 / CT1 + R1 / R2 < 6.0, where T12 is the axial distance between the first lens and the second lens, CT2 is the central thickness CT1 of the first lens on the optical axis, R1 is the curvature radius of the object side surface of the first lens, and R2 is the curvature radius of the image side surface of the first lens. The optical imaging lens satisfying 5.0 < T12 / CT1 + R1 / R2 < 6.0 can endow the optical imaging lens with better ultra-wide-angle characteristics and can also effectively correct the field curvature of the optical imaging lens. More specifically, T12, CT1, R1, and R2 may further satisfy: 5.1 < T12 / CT1 + R1 / R2 < 5.9.

[0044] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following conditions: 0 < (R3 + R4) / (f2 / V2) < 2.0, where R3 is the radius of curvature of the object-side surface of the second lens element, R4 is the radius of curvature of the image-side surface of the second lens element, f2 is the effective focal length of the second lens element, and V2 is the Abbe number of the second lens element. The optical imaging lens satisfying the following conditions: 0 < (R3 + R4) / (f2 / V2) < 2.0 helps correct chromatic aberration of the optical imaging lens, balances the on-axis and off-axis field of view performance of the optical imaging lens, and contributes to improving the overall imaging quality of the optical imaging lens. More specifically, R3, R4, f2, and V2 may further satisfy the following conditions: 0.1 < (R3 + R4) / (f2 / V2) < 1.8.

[0045] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following conditions: 3.5 < CT4 × (R7-R8) / ((R7+R8) × T45) < 9.5, where CT4 is the center thickness of the fourth lens element on the optical axis, R7 is the radius of curvature of the object-side surface of the fourth lens element, R8 is the radius of curvature of the image-side surface of the fourth lens element, and T45 is the distance between the fourth lens element and the fifth lens element on the optical axis. The optical imaging lens satisfies the following conditions: 3.5 < CT4 × (R7-R8) / ((R7+R8) × T45) < 9.5, which helps correct the temperature drift characteristics of the optical imaging lens and balance the performance of the optical imaging lens at different temperatures. More specifically, CT4, R7, R8, and T45 may further satisfy the following conditions: 3.7 < CT4 × (R7-R8) / ((R7+R8) × T45) < 9.4.

[0046] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: 3.0 < f5 × N5 / R9 < 4.0, where f5 is the effective focal length of the fifth lens element, N5 is the refractive index of the fifth lens element, and R9 is the radius of curvature of the object-side surface of the fifth lens element. This 3.0 < f5 × N5 / R9 < 4.0 relationship effectively corrects chromatic aberration and improves the overall imaging quality of the lens. More specifically, f5, N5, and R9 may further satisfy the following relationship: 3.2 < f5 × N5 / R9 < 3.8.

[0047] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following: -5.5<CT5×(V6-V5) / (R10+R11)<-3.0, where CT5 is the center thickness of the fifth lens element on the optical axis, V6 is the Abbe number of the sixth lens element, V5 is the Abbe number of the fifth lens element, R10 is the radius of curvature of the image-side surface of the fifth lens element, and R11 is the radius of curvature of the object-side surface of the sixth lens element. The optical imaging lens satisfies -5.5<CT5×(V6-V5) / (R10+R11)<-3.0, which can effectively correct the chromatic aberration of the optical imaging lens and compensate for the temperature drift of the optical imaging lens. More specifically, CT5, V6, V5, R10, and R11 can further satisfy the following: -5.3<CT5×(V6-V5) / (R10+R11)<-3.0.

[0048] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: 3.0 < f123 / (CT1 + CT2 + CT3) < 4.0, where f123 is the combined focal length of the first, second, and third lenses, CT1 is the center thickness of the first lens on the optical axis, CT2 is the center thickness of the second lens on the optical axis, and CT3 is the center thickness of the third lens on the optical axis. The optical imaging lens satisfies the following relationship: 3.0 < f123 / (CT1 + CT2 + CT3) < 4.0, which facilitates better achieving the wide-angle characteristics of the optical imaging lens, balancing the optical power of the front and rear lens groups, and improving the imaging quality of the optical imaging lens. More specifically, f123, CT1, CT2, and CT3 may further satisfy the following relationship: 3.1 < f123 / (CT1 + CT2 + CT3) < 3.9.

[0049] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: 2.0 < T56 / SAG62 < 7.0, where T56 is the distance between the fifth and sixth lenses on the optical axis, and SAG62 is the distance from the intersection of the image-side surface of the sixth lens and the optical axis to the vertex of the effective radius of the image-side surface of the sixth lens on the optical axis. This relationship helps correct field curvature and astigmatism, and improves imaging quality in the peripheral field of view of the lens. More specifically, T56 and SAG62 may further satisfy the following relationship: 2.2 < T56 / SAG62 < 6.8.

[0050] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following conditions: 0.5 < T45 / (SAG41 + |SAG42|) < 1.5, where T45 is the distance between the fourth and fifth lenses on the optical axis, SAG41 is the distance from the intersection of the object-side surface of the fourth lens and the optical axis to the vertex of the effective radius of the object-side surface of the fourth lens on the optical axis, and SAG42 is the distance from the intersection of the image-side surface of the fourth lens and the optical axis to the vertex of the effective radius of the image-side surface of the fourth lens on the optical axis. The optical imaging lens satisfying 0.5 < T45 / (SAG41 + |SAG42|) < 1.5 helps correct the temperature drift characteristics of the optical imaging lens and helps balance the performance of the optical imaging lens at different temperatures. More specifically, T45, SAG41, and SAG42 may further satisfy the following conditions: 0.6 < T45 / (SAG41 + |SAG42|) < 1.4.

[0051] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following conditions: 1.5 < (T12 + T23) / (CT1 + CT2) < 2.5, where T12 is the distance between the first lens and the second lens on the optical axis, T23 is the distance between the second lens and the third lens on the optical axis, CT1 is the center thickness of the first lens on the optical axis, and CT2 is the center thickness of the second lens on the optical axis. The optical imaging lens satisfies the following conditions: 1.5 < (T12 + T23) / (CT1 + CT2) < 2.5, which helps correct chromatic aberration and spherical aberration of the front lens group located before the optical imaging lens and helps better realize the wide-angle characteristics of the optical imaging lens. More specifically, T12, T23, CT1, and CT2 may further satisfy the following conditions: 1.6 < (T12 + T23) / (CT1 + CT2) < 2.4.

[0052] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following: 1.5<f6×N6 / (R11+R12)<3.5, wherein f6 is the effective focal length of the sixth lens, N6 is the refractive index of the sixth lens, R11 is the radius of curvature of the object side surface of the sixth lens, and R12 is the radius of curvature of the image side surface of the sixth lens. The optical imaging lens satisfies 1.5<f6×N6 / (R11+R12)<3.5, which helps to better balance the optical power of the lens located in front of the sixth lens, while effectively improving the chromatic aberration of the optical imaging lens and enhancing the overall performance of the optical imaging lens. More specifically, f6, N6, R11 and R12 may further satisfy the following: 1.7<f6×N6 / (R11+R12)<3.5.

[0053] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 5.0 < f6 / (T56 + CT6) < 8.0, where f6 is the effective focal length of the sixth lens, T56 is the distance between the fifth lens and the sixth lens on the optical axis, and CT6 is the central thickness of the sixth lens on the optical axis. The optical imaging lens satisfying 5.0 < f6 / (T56 + CT6) < 8.0 can effectively improve the axial aberrations such as spherical aberration and chromatic aberration of the optical imaging lens, and contribute to improving the axial imaging quality of the optical imaging lens. More specifically, f6, T56, and CT6 may further satisfy: 5.2 < f6 / (T56 + CT6) < 7.9.

[0054] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: 2.5 < TD×Tan(Semi-FOV) / (f×Fno) < 4.0, where TD is the distance between the object side of the first lens and the image side of the sixth lens on the optical axis, Semi-FOV is half of the maximum field angle of the optical imaging lens, f is the total effective focal length of the optical imaging lens, and Fno is the aperture value of the optical imaging lens. The optical imaging lens satisfying 2.5 < TD×Tan(Semi-FOV) / (f×Fno) < 4.0 can make the optical imaging lens take into account the characteristics of a large field angle and a large aperture, and at the same time can effectively compress the length of the optical imaging lens, which is beneficial to achieving thinness and lightness. More specifically, TD, Semi-FOV, f, and Fno may further satisfy: 2.6 < TD×Tan(Semi-FOV) / (f×Fno) < 3.8.

[0055] In an exemplary embodiment, the optical imaging lens according to the present application further includes an aperture disposed between the third lens and the fourth lens. Optionally, the above optical imaging lens may further include a filter for correcting color deviation and / or a protective glass for protecting the photosensitive element located on the imaging surface.

[0056] In an exemplary embodiment, the material of the fourth lens is glass, and the material of any one of the first lens to the third lens and the fifth lens and the sixth lens is plastic. Selecting glass material for the fourth lens makes the lens have a high Abbe number and can play a role in eliminating temperature drift. Selecting plastic material for any one of the first lens to the third lens and the fifth lens and the sixth lens is beneficial to saving the cost of each lens, thereby reducing the cost of the optical imaging lens, and is beneficial to reducing the processing difficulty of the lens while obtaining high imaging quality.

[0057] In an exemplary embodiment, at least one of the mirror surfaces of each lens is an aspherical mirror surface, that is, at least one of the mirror surfaces from the object side surface of the first lens to the image side surface of the sixth lens is an aspherical mirror surface. The characteristic of an aspherical lens is that the curvature changes continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens with a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has a better curvature radius characteristic, and has the advantages of improving distortion aberration and improving astigmatism aberration. After adopting an aspherical lens, the aberration that occurs during imaging can be eliminated as much as possible, thereby improving the imaging quality. Optionally, at least one of the object side surface and the image side surface of each lens in the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens is an aspherical mirror surface. Optionally, the object side surface and the image side surface of each lens in the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are all aspherical mirror surfaces.

[0058] However, those skilled in the art will appreciate that the number of lenses comprising the optical imaging lens can be varied to achieve the various results and advantages described herein without departing from the claimed technical solutions. For example, while six lenses are described in the embodiments, the optical imaging lens is not limited to six lenses. If desired, the optical imaging lens may also include other numbers of lenses.

[0059] Specific embodiments of the optical imaging lens applicable to the above-mentioned embodiments will be further described below with reference to the accompanying drawings.

[0060] Example 1

[0061] The following reference Figures 1 to 2C The optical imaging lens according to Example 1 of the present application is described. Figure 1 The optical imaging lens of Example 1 is shown.

[0062] like Figure 1 As shown, the optical imaging lens includes, from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0063] The first lens E1 has negative 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 concave and its image-side surface S4 being convex. 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 positive optical power, with its object-side surface S7 being convex and its image-side surface S8 being convex. The fifth lens E5 has negative optical power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has positive optical power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from the object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0064] Table 1 shows the basic parameters of the optical imaging lens of Example 1, wherein the units of curvature radius, thickness / distance, and focal length are all millimeters (mm).

[0065]

[0066] Table 1

[0067] In this example, the total effective focal length f of the optical imaging lens is 1.69 mm, half of the maximum field of view (Semi-FOV) of the optical imaging lens is 67.5°, the combined focal length f123 of the first lens E1, the second lens E2, and the third lens E2 is 4.32 mm, the distance SAG41 from the intersection of the object-side surface of the fourth lens E4 and the optical axis to the vertex of the effective radius of the object-side surface of the fourth lens E4 on the optical axis is 0.05 mm, the absolute value |SAG42| of the distance from the intersection of the image-side surface of the fourth lens E4 and the optical axis to the vertex of the effective radius of the image-side surface of the fourth lens E4 on the optical axis is 0.22 mm, and the absolute value |SAG62| of the distance from the intersection of the image-side surface of the sixth lens E6 and the optical axis to the vertex of the effective radius of the image-side surface of the sixth lens E6 on the optical axis is 0.06 mm.

[0068] In Example 1, the object-side surface and the image-side surface of any lens among the first lens E1 to the sixth lens E6 are both aspherical surfaces. The surface shape x of each aspherical lens can be defined by, but is not limited to, the following aspherical surface formula:

[0069]

[0070] Where x is the distance vector from the vertex of the aspheric surface at a height of h along the optical axis; c is the paraxial curvature of the aspheric surface, c = 1 / R (i.e., the paraxial curvature c is the reciprocal of the curvature radius R in Table 1 above); k is the conic coefficient; Ai is the correction coefficient for the i-th order of the aspheric surface. Table 2 below lists the higher-order coefficients A4, A6, A8, A10, A12, A14, and A16 that can be used for each aspheric mirror surface S1 to S12 in Example 1.

[0071]

[0072]

[0073] Table 2

[0074] Figure 2A The axial chromatic aberration curve of the optical imaging lens of Example 1 is shown, which indicates the deviation of the focal point of light of different wavelengths after passing through the optical imaging lens. Figure 2B The astigmatism curve of the optical imaging lens of Example 1 is shown, which represents the meridional field curvature and the sagittal field curvature. Figure 2C The chromatic aberration curve of the optical imaging lens of Example 1 is shown, which represents the deviation of different image heights of light passing through the optical imaging lens on the imaging surface. Figures 2A to 2C It can be seen that the optical imaging lens provided in Example 1 can achieve good imaging quality.

[0075] Example 2

[0076] The following reference Figures 3 to 4C The optical imaging lens according to Example 2 of the present application is described. In this embodiment and the following embodiments, for the sake of brevity, some descriptions similar to Example 1 will be omitted. Figure 3 The optical imaging lens of Example 2 is shown.

[0077] like Figure 3 As shown, the optical imaging lens includes, from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0078] The first lens E1 has negative 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 concave and its image-side surface S4 being convex. 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 positive optical power, with its object-side surface S7 being convex and its image-side surface S8 being convex. The fifth lens E5 has negative optical power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has positive optical power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from the object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0079] In this example, the total effective focal length f of the optical imaging lens is 1.67 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 67.5°, the combined focal length f123 of the first lens E1, the second lens E2, and the third lens E2 is 4.10 mm, the distance SAG41 from the intersection of the object-side surface of the fourth lens E4 and the optical axis to the vertex of the effective radius of the object-side surface of the fourth lens E4 on the optical axis is 0.05 mm, the absolute value |SAG42| of the distance from the intersection of the image-side surface of the fourth lens E4 and the optical axis to the vertex of the effective radius of the image-side surface of the fourth lens E4 on the optical axis is 0.23 mm, and the absolute value |SAG62| of the distance from the intersection of the image-side surface of the sixth lens E6 and the optical axis to the vertex of the effective radius of the image-side surface of the sixth lens E6 on the optical axis is 0.06 mm.

[0080] Table 3 shows the basic parameters of the optical imaging lens of Example 2. The units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Table 4 shows the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 2. The surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0081]

[0082] Table 3

[0083] Face number A4 A6 A8 A10 A12 A14 A16 S1 -4.5885E-02 -6.4572E-02 3.6813E-02 -3.4372E-02 3.3129E-02 -1.8690E-02 5.3233E-03 S2 7.3493E-02 -2.1551E-01 4.1752E-01 -9.1015E-01 9.6127E-01 -4.0795E-01 7.6394E-03 S3 2.3304E-01 -2.2950E-01 1.2166E-01 2.2184E-01 -4.5503E-01 3.6849E-01 -1.1666E-01 S4 2.9999E-01 -1.2122E+00 3.5189E+00 -7.0248E+00 9.3753E+00 -7.2335E+00 2.4829E+00 S5 3.3250E-01 -1.8171E+00 5.2358E+00 -1.1411E+01 1.5471E+01 -1.1609E+01 3.4441E+00 S6 -2.8518E-02 -3.5671E-01 1.6760E+00 -6.9146E+00 1.6284E+01 -2.0228E+01 1.0240E+01 S7 2.3841E-02 -2.5939E-01 7.6189E-01 -2.3936E+00 3.3160E+00 -6.9261E-01 -2.2148E+00 S8 2.3340E-01 -4.5316E-01 -5.9119E-03 5.3735E-01 -4.5085E-01 1.7898E-01 -1.2942E-01 S9 6.5944E-01 -1.3689E+00 1.7168E+00 -2.0610E+00 2.8448E+00 -1.5361E+00 1.4428E-02 S10 6.4524E-02 1.3342E-01 -7.6870E-01 1.6545E+00 -1.7292E+00 9.6892E-01 -2.3515E-01 S11 -4.1578E-02 -1.3260E-01 1.4822E-01 -8.7232E-02 2.8963E-02 -5.2104E-03 4.7949E-04 S12 -1.1741E-01 -6.1884E-02 8.5357E-02 -4.8528E-02 1.3796E-02 -1.8150E-03 3.5740E-05

[0084] Table 4

[0085] Figure 4A The axial chromatic aberration curve of the optical imaging lens of Example 2 is shown, which indicates the deviation of the focal point of light of different wavelengths after passing through the optical imaging lens. Figure 4B The astigmatism curve of the optical imaging lens of Example 2 is shown, which represents the meridional field curvature and the sagittal field curvature. Figure 4CThe chromatic aberration curve of the optical imaging lens of Example 2 is shown, which represents the deviation of different image heights of light passing through the optical imaging lens on the imaging surface. Figures 4A to 4C It can be seen that the optical imaging lens provided in Example 2 can achieve good imaging quality.

[0086] Example 3

[0087] The following reference Figures 5 to 6C The optical imaging lens according to Example 3 of the present application is described. Figure 5 The optical imaging lens of Example 3 is shown.

[0088] like Figure 5 As shown, the optical imaging lens includes, from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0089] The first lens E1 has negative 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 concave and its image-side surface S4 being convex. 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 positive optical power, with its object-side surface S7 being convex and its image-side surface S8 being convex. The fifth lens E5 has negative optical power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has positive optical power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from the object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0090] In this example, the total effective focal length f of the optical imaging lens is 1.65 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 66.0°, the combined focal length f123 of the first lens E1, the second lens E2, and the third lens E2 is 4.12 mm, the distance SAG41 from the intersection of the object-side surface of the fourth lens E4 and the optical axis to the vertex of the effective radius of the object-side surface of the fourth lens E4 on the optical axis is 0.04 mm, the absolute value |SAG42| of the distance from the intersection of the image-side surface of the fourth lens E4 and the optical axis to the vertex of the effective radius of the image-side surface of the fourth lens E4 on the optical axis is 0.22 mm, and the absolute value |SAG62| of the distance from the intersection of the image-side surface of the sixth lens E6 and the optical axis to the vertex of the effective radius of the image-side surface of the sixth lens E6 on the optical axis is 0.08 mm.

[0091] Table 5 shows the basic parameters of the optical imaging lens of Example 3. The units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Table 6 shows the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 3. The surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0092]

[0093] Table 5

[0094] Face number A4 A6 A8 A10 A12 A14 A16 S1 -3.8084E-02 -7.2278E-02 4.6101E-02 -4.2739E-02 3.7177E-02 -1.9171E-02 5.0749E-03 S2 9.0451E-02 -2.6768E-01 5.6021E-01 -1.1793E+00 1.1941E+00 -5.0357E-01 3.1453E-02 S3 2.4885E-01 -2.6657E-01 1.7462E-01 1.8618E-01 -4.5580E-01 3.8043E-01 -1.1974E-01 S4 2.8910E-01 -1.1445E+00 3.1580E+00 -5.9755E+00 7.6004E+00 -5.6337E+00 1.8746E+00 S5 3.2335E-01 -1.7157E+00 4.5974E+00 -9.1449E+00 1.0795E+01 -6.5215E+00 1.2112E+00 S6 -1.0408E-02 -4.0842E-01 1.8400E+00 -7.3798E+00 1.6910E+01 -2.0390E+01 9.9906E+00 S7 3.9548E-02 -4.5004E-01 2.6774E+00 -1.3775E+01 4.0087E+01 -6.2018E+01 3.8967E+01 S8 1.9431E-01 -3.8547E-01 -1.1345E-01 8.9288E-01 -1.3345E+00 1.1531E+00 -5.0503E-01 S9 6.8848E-01 -1.5922E+00 2.2565E+00 -2.8566E+00 3.0831E+00 -8.0452E-01 -4.8088E-01 S10 1.2457E-01 -5.1168E-02 -4.7136E-01 1.2878E+00 -1.3941E+00 7.9320E-01 -1.9346E-01 S11 -5.6138E-02 -1.0575E-01 1.3626E-01 -1.0384E-01 5.2158E-02 -1.6149E-02 2.3396E-03 S12 -1.3099E-01 -2.0034E-02 3.8829E-02 -1.9825E-02 3.3115E-03 3.4768E-04 -1.6469E-04

[0095] Table 6

[0096] Figure 6A The axial chromatic aberration curve of the optical imaging lens of Example 3 is shown, which indicates the deviation of the focal point of light of different wavelengths after passing through the optical imaging lens. Figure 6B The astigmatism curve of the optical imaging lens of Example 3 is shown, which represents the meridional field curvature and the sagittal field curvature. Figure 6C The chromatic aberration curve of the optical imaging lens of Example 3 is shown, which represents the deviation of different image heights of light passing through the optical imaging lens on the imaging surface. Figures 6A to 6C It can be seen that the optical imaging lens provided in Example 3 can achieve good imaging quality.

[0097] Example 4

[0098] The following reference Figures 7 to 8C An optical imaging lens according to Example 4 of the present application is described. Figure 7 An optical imaging lens according to Example 4 is shown.

[0099] like Figure 7 As shown, the optical imaging lens includes, from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0100] The first lens E1 has negative 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 concave and its image-side surface S4 being convex. 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 positive optical power, with its object-side surface S7 being convex and its image-side surface S8 being convex. The fifth lens E5 has negative optical power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has positive optical power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from the object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0101] In this example, the total effective focal length f of the optical imaging lens is 1.63 mm, half of the maximum field of view (Semi-FOV) of the optical imaging lens is 67.4°, the combined focal length f123 of the first lens E1, the second lens E2, and the third lens E2 is 3.94 mm, the distance SAG41 from the intersection of the object-side surface of the fourth lens E4 and the optical axis to the vertex of the effective radius of the object-side surface of the fourth lens E4 on the optical axis is 0.03 mm, the absolute value |SAG42| of the distance from the intersection of the image-side surface of the fourth lens E4 and the optical axis to the vertex of the effective radius of the image-side surface of the fourth lens E4 on the optical axis is 0.21 mm, and the absolute value |SAG62| of the distance from the intersection of the image-side surface of the sixth lens E6 and the optical axis to the vertex of the effective radius of the image-side surface of the sixth lens E6 on the optical axis is 0.09 mm.

[0102] Table 7 shows the basic parameters of the optical imaging lens of Example 4. The units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Table 8 shows the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 4. The surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0103]

[0104] Table 7

[0105] Face number A4 A6 A8 A10 A12 A14 A16 S1 -3.4842E-02 -7.2135E-02 4.3735E-02 -3.8524E-02 3.3100E-02 -1.6853E-02 4.3814E-03 S2 9.7768E-02 -2.8751E-01 6.2514E-01 -1.3341E+00 1.3879E+00 -6.4328E-01 7.8351E-02 S3 2.5883E-01 -2.6463E-01 1.2787E-01 2.9299E-01 -5.7402E-01 4.4549E-01 -1.3350E-01 S4 2.7852E-01 -1.0621E+00 2.8176E+00 -5.1680E+00 6.4471E+00 -4.7242E+00 1.5642E+00 S5 3.2741E-01 -1.6479E+00 4.0843E+00 -7.3116E+00 7.0491E+00 -2.4562E+00 -5.8456E-01 S6 2.5710E-03 -4.2049E-01 1.7688E+00 -6.9058E+00 1.5525E+01 -1.8329E+01 8.7598E+00 S7 4.8891E-02 -5.5324E-01 3.6842E+00 -2.0399E+01 6.3900E+01 -1.0606E+02 7.1623E+01 S8 1.8079E-01 -4.0031E-01 4.8148E-03 6.1580E-01 -9.3164E-01 7.7485E-01 -3.1726E-01 S9 7.6285E-01 -1.9538E+00 3.4849E+00 -5.7162E+00 7.5626E+00 -4.8856E+00 1.2451E+00 S10 1.7200E-01 -2.1752E-01 -9.2399E-02 7.2709E-01 -8.6851E-01 5.0429E-01 -1.2001E-01 S11 -5.3907E-02 -1.0591E-01 1.5185E-01 -1.3202E-01 7.5251E-02 -2.6012E-02 4.0691E-03 S12 -1.1779E-01 -1.8987E-02 3.1684E-02 -1.3901E-02 6.8084E-04 9.8285E-04 -2.3361E-04

[0106] Table 8

[0107] Figure 8A The axial chromatic aberration curve of the optical imaging lens of Example 4 is shown, which indicates the deviation of the focal point of light of different wavelengths after passing through the optical imaging lens. Figure 8B The astigmatism curve of the optical imaging lens of Example 4 is shown, which represents the meridional field curvature and the sagittal field curvature. Figure 8CThe chromatic aberration curve of the optical imaging lens of Example 4 is shown, which represents the deviation of different image heights of light passing through the optical imaging lens on the imaging surface. Figures 8A to 8C It can be seen that the optical imaging lens provided in Example 4 can achieve good imaging quality.

[0108] Example 5

[0109] The following reference Figures 9 to 10C The optical imaging lens according to Example 5 of the present application is described. Figure 9 An optical imaging lens according to Example 5 is shown.

[0110] like Figure 9 As shown, the optical imaging lens includes, from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0111] The first lens E1 has negative 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 concave and its image-side surface S4 being convex. 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 positive optical power, with its object-side surface S7 being convex and its image-side surface S8 being convex. The fifth lens E5 has negative optical power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has positive optical power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from the object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0112] In this example, the total effective focal length f of the optical imaging lens is 1.60 mm, half of the maximum field of view (Semi-FOV) of the optical imaging lens is 64.4°, the combined focal length f123 of the first lens E1, the second lens E2, and the third lens E2 is 3.63 mm, the distance SAG41 from the intersection of the object-side surface of the fourth lens E4 and the optical axis to the vertex of the effective radius of the object-side surface of the fourth lens E4 on the optical axis is 0.03 mm, the absolute value |SAG42| of the distance from the intersection of the image-side surface of the fourth lens E4 and the optical axis to the vertex of the effective radius of the image-side surface of the fourth lens E4 on the optical axis is 0.20 mm, and the absolute value |SAG62| of the distance from the intersection of the image-side surface of the sixth lens E6 and the optical axis to the vertex of the effective radius of the image-side surface of the sixth lens E6 on the optical axis is 0.11 mm.

[0113] Table 9 shows the basic parameters of the optical imaging lens of Example 5. The units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Table 10 shows the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 5. The surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0114]

[0115]

[0116] Table 9

[0117] Face number A4 A6 A8 A10 A12 A14 A16 S1 -3.4916E-02 -7.2860E-02 5.0823E-02 -4.6438E-02 3.7086E-02 -1.7638E-02 4.3515E-03 S2 9.9710E-02 -3.2162E-01 7.4383E-01 -1.5516E+00 1.5889E+00 -7.4469E-01 1.0609E-01 S3 2.6269E-01 -2.3725E-01 5.5494E-02 3.8851E-01 -6.3789E-01 4.6673E-01 -1.3736E-01 S4 2.5429E-01 -8.8146E-01 2.3481E+00 -4.4439E+00 5.9085E+00 -4.6569E+00 1.6751E+00 S5 3.2824E-01 -1.5019E+00 3.3284E+00 -4.9953E+00 2.6330E+00 2.3313E+00 -2.7385E+00 S6 7.4619E-03 -4.3831E-01 1.8814E+00 -7.1472E+00 1.5681E+01 -1.8014E+01 8.3509E+00 S7 4.9841E-02 -6.4022E-01 4.8039E+00 -2.8095E+01 9.2926E+01 -1.6249E+02 1.1558E+02 S8 1.8789E-01 -4.6756E-01 1.6958E-01 1.8338E-01 4.8969E-02 -4.7118E-01 3.3373E-01 S9 8.3800E-01 -2.2426E+00 4.3948E+00 -7.9675E+00 1.1561E+01 -8.9425E+00 3.1444E+00 S10 1.9753E-01 -2.7097E-01 -2.4445E-02 7.1679E-01 -9.3963E-01 5.7962E-01 -1.4025E-01 S11 -6.5526E-02 -9.0602E-02 1.4949E-01 -1.5213E-01 1.0019E-01 -3.9079E-02 6.7201E-03 S12 -1.1602E-01 -2.9030E-03 1.2938E-02 -2.4287E-03 -3.4438E-03 1.8238E-03 -3.1118E-04

[0118] Table 10

[0119] Figure 10A The axial chromatic aberration curve of the optical imaging lens of Example 5 is shown, which indicates the deviation of the focal point of light of different wavelengths after passing through the optical imaging lens. Figure 10B The astigmatism curve of the optical imaging lens of Example 5 is shown, which represents the meridional field curvature and the sagittal field curvature. Figure 10C The chromatic aberration curve of the optical imaging lens of Example 5 is shown, which represents the deviation of different image heights of light passing through the optical imaging lens on the imaging surface. 10A to 10C It can be seen that the optical imaging lens provided in Example 5 can achieve good imaging quality.

[0120] Example 6

[0121] The following reference Figures 11 to 12C The optical imaging lens according to Example 6 of the present application is described. Figure 11 An optical imaging lens according to Example 6 is shown.

[0122] like Figure 11 As shown, the optical imaging lens includes, from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0123] The first lens E1 has negative 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 concave and its image-side surface S4 being convex. 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 positive optical power, with its object-side surface S7 being convex and its image-side surface S8 being convex. The fifth lens E5 has negative optical power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has positive optical power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from the object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0124] In this example, the total effective focal length f of the optical imaging lens is 1.61 mm, half of the maximum field of view (Semi-FOV) of the optical imaging lens is 64.3°, the combined focal length f123 of the first lens E1, the second lens E2, and the third lens E2 is 3.55 mm, the distance SAG41 from the intersection of the object-side surface of the fourth lens E4 and the optical axis to the vertex of the effective radius of the object-side surface of the fourth lens E4 on the optical axis is 0.01 mm, the absolute value |SAG42| of the distance from the intersection of the image-side surface of the fourth lens E4 and the optical axis to the vertex of the effective radius of the image-side surface of the fourth lens E4 on the optical axis is 0.22 mm, and the absolute value |SAG62| of the distance from the intersection of the image-side surface of the sixth lens E6 and the optical axis to the vertex of the effective radius of the image-side surface of the sixth lens E6 on the optical axis is 0.10 mm.

[0125] Table 11 shows the basic parameters of the optical imaging lens of Example 6. The units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Table 12 shows the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 6. The surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0126]

[0127] Table 11

[0128] Face number A4 A6 A8 A10 A12 A14 A16 S1 -3.1256E-02 -6.1843E-02 2.2470E-02 -9.5168E-03 1.0282E-02 -6.3875E-03 1.7927E-03 S2 9.7195E-02 -2.6576E-01 5.2273E-01 -1.1116E+00 1.1129E+00 -4.5625E-01 2.6419E-02 S3 2.9410E-01 -3.3783E-01 3.3413E-01 -7.0292E-02 -2.1768E-01 2.6364E-01 -9.6445E-02 S4 2.5417E-01 -9.4876E-01 2.7076E+00 -5.2047E+00 6.7479E+00 -5.1303E+00 1.7804E+00 S5 2.8981E-01 -1.4952E+00 3.7443E+00 -6.4572E+00 5.6994E+00 -1.3310E+00 -7.6939E-01 S6 -1.1455E-02 -3.4953E-01 1.8554E+00 -7.2486E+00 1.5815E+01 -1.7899E+01 8.2346E+00 S7 9.8948E-03 -4.1606E-01 2.5137E+00 -1.3766E+01 4.1202E+01 -6.6002E+01 4.2148E+01 S8 1.5973E-01 -4.3708E-01 1.1626E-01 5.6611E-01 -9.4808E-01 7.4950E-01 -3.4665E-01 S9 8.9805E-01 -2.5858E+00 5.1618E+00 -9.0981E+00 1.2567E+01 -9.0497E+00 2.5705E+00 S10 2.7496E-01 -5.5042E-01 4.8486E-01 7.3700E-02 -3.8306E-01 2.9518E-01 -8.3930E-02 S11 -7.8396E-02 -5.7855E-02 8.6990E-02 -7.9033E-02 4.7803E-02 -1.7318E-02 2.8466E-03 S12 -1.4498E-01 2.5177E-02 -1.0072E-02 1.0937E-02 -8.6318E-03 3.0247E-03 -4.3711E-04

[0129] Table 12

[0130] Figure 12A The axial chromatic aberration curve of the optical imaging lens of Example 6 is shown, which indicates the deviation of the focal point of light of different wavelengths after passing through the optical imaging lens. Figure 12B The astigmatism curve of the optical imaging lens of Example 6 is shown, which represents the meridional field curvature and the sagittal field curvature. Figure 12CThe chromatic aberration curve of the optical imaging lens of Example 6 is shown, which represents the deviation of different image heights of light passing through the optical imaging lens on the imaging surface. 12A to 12C It can be seen that the optical imaging lens provided in Example 6 can achieve good imaging quality.

[0131] Example 7

[0132] The following reference Figures 13 to 14C An optical imaging lens according to Example 7 of the present application is described. Figure 13 An optical imaging lens according to Example 7 is shown.

[0133] like Figure 13 As shown, the optical imaging lens includes, from the object side to the image side, a first lens E1, a second lens E2, a third lens E3, an aperture STO, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0134] The first lens E1 has negative 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 concave and its image-side surface S4 being convex. 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 positive optical power, with its object-side surface S7 being convex and its image-side surface S8 being convex. The fifth lens E5 has negative optical power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has positive optical power, with its object-side surface S11 being convex and its image-side surface S12 being concave. The filter E7 has an object-side surface S13 and an image-side surface S14. Light from the object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0135] In this example, the total effective focal length f of the optical imaging lens is 1.62 mm, half of the maximum field of view (Semi-FOV) of the optical imaging lens is 67.5°, the combined focal length f123 of the first lens E1, the second lens E2, and the third lens E2 is 3.70 mm, the distance SAG41 from the intersection of the object-side surface of the fourth lens E4 and the optical axis to the vertex of the effective radius of the object-side surface of the fourth lens E4 on the optical axis is 0.01 mm, the absolute value |SAG42| of the distance from the intersection of the image-side surface of the fourth lens E4 and the optical axis to the vertex of the effective radius of the image-side surface of the fourth lens E4 on the optical axis is 0.23 mm, and the absolute value |SAG62| of the distance from the intersection of the image-side surface of the sixth lens E6 and the optical axis to the vertex of the effective radius of the image-side surface of the sixth lens E6 on the optical axis is 0.09 mm.

[0136] Table 13 shows the basic parameters of the optical imaging lens of Example 7. The units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Table 14 shows the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 7. The surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0137]

[0138]

[0139] Table 13

[0140] Face number A4 A6 A8 A10 A12 A14 A16 S1 -2.7335E-02 -6.7456E-02 3.0207E-02 -1.8628E-02 1.6541E-02 -8.8222E-03 2.2982E-03 S2 1.0584E-01 -2.7700E-01 5.6086E-01 -1.1680E+00 1.1541E+00 -4.7787E-01 3.2749E-02 S3 3.0679E-01 -3.5176E-01 2.8270E-01 7.7155E-02 -3.7749E-01 3.4042E-01 -1.0814E-01 S4 2.6177E-01 -9.9837E-01 2.6844E+00 -4.9064E+00 6.0269E+00 -4.3235E+00 1.3991E+00 S5 2.9781E-01 -1.5861E+00 4.0512E+00 -7.2783E+00 7.1043E+00 -2.7275E+00 -2.9074E-01 S6 -2.9045E-03 -3.6891E-01 1.8626E+00 -7.5649E+00 1.7155E+01 -2.0285E+01 9.7180E+00 S7 1.7296E-02 -3.7469E-01 1.9570E+00 -1.0397E+01 3.0271E+01 -4.7529E+01 2.9806E+01 S8 1.4739E-01 -3.6747E-01 -1.0401E-02 7.8391E-01 -1.3929E+00 1.2664E+00 -5.5017E-01 S9 9.1780E-01 -2.6024E+00 5.3652E+00 -9.6854E+00 1.3563E+01 -1.0327E+01 3.3945E+00 S10 2.9293E-01 -5.9752E-01 6.3411E-01 -2.1762E-01 -5.2416E-02 7.9473E-02 -2.2078E-02 S11 -6.4466E-02 -6.4047E-02 8.1755E-02 -6.3809E-02 3.6375E-02 -1.3547E-02 2.3132E-03 S12 -1.2516E-01 6.4552E-03 2.2574E-04 8.4614E-03 -8.6112E-03 3.1040E-03 -4.4347E-04

[0141] Table 14

[0142] Figure 14A The axial chromatic aberration curve of the optical imaging lens of Example 7 is shown, which indicates the deviation of the focal point of light of different wavelengths after passing through the optical imaging lens. Figure 14B The astigmatism curve of the optical imaging lens of Example 7 is shown, which represents the meridional field curvature and the sagittal field curvature. Figure 14C The chromatic aberration curve of the optical imaging lens of Example 7 is shown, which represents the deviation of different image heights of light passing through the optical imaging lens on the imaging surface. 14A to 14C It can be seen that the optical imaging lens provided in Example 7 can achieve good imaging quality.

[0143] In summary, Examples 1 to 7 respectively satisfy the relationships shown in Table 15.

[0144]

[0145]

[0146] Table 15

[0147] The present application also provides an imaging device, wherein the electronic photosensitive element thereof may be a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS). The imaging device may be a standalone 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.

[0148] The above description is merely a preferred embodiment of the present application and an illustration 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 the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An optical imaging lens, characterized in that: Along the optical axis from the object side to the image side, they include: a first lens having negative optical power, wherein the object-side surface is convex and the image-side surface is concave; a second lens having negative optical power, whose object-side surface is concave and whose image-side surface is convex; The third lens has positive optical power, its object-side surface is convex, and its image-side surface is convex; a fourth lens element having positive optical power, with a convex object-side surface and a convex image-side surface; a fifth lens element having negative optical power, whose object-side surface is concave and whose image-side surface is convex; a sixth lens element having positive optical power, whose object-side surface is convex and whose image-side surface is concave; The Abbe number V3 of the third lens element, the Abbe number V4 of the fourth lens element, the effective focal length f3 of the third lens element, and the effective focal length f4 of the fourth lens element satisfy the following conditions: 0.52≤(V4-V3)×(f3-f4) / (f3+f4)≤1.36; The center thickness CT4 of the fourth lens on the optical axis, the curvature radius R7 of the object-side surface of the fourth lens, the curvature radius R8 of the image-side surface of the fourth lens, and the distance T45 between the fourth lens and the fifth lens on the optical axis satisfy the following conditions: 3.82≤CT4×(R7−R8) / ((R7+R8)×T45)≤9.27; There is a spacing distance between any two adjacent lenses from the first lens to the sixth lens; The number of lenses having optical power in the optical imaging lens is six.

2. The optical imaging lens according to claim 1, wherein: A distance T12 between the first lens and the second lens on the optical axis, a center thickness CT1 of the first lens on the optical axis, a curvature radius R1 of the object-side surface of the first lens, and a curvature radius R2 of the image-side surface of the first lens satisfy the following conditions: 5.17≤T12 / CT1+R1 / R2≤5.

77.

3. The optical imaging lens according to claim 1, wherein: A curvature radius R3 of the object-side surface of the second lens, a curvature radius R4 of the image-side surface of the second lens, an effective focal length f2 of the second lens, and an Abbe number V2 of the second lens satisfy: 0.23≤(R3+R4) / (f2 / V2)≤1.

73.

4. The optical imaging lens according to claim 1, wherein: The effective focal length f5 of the fifth lens, the refractive index N5 of the fifth lens, and the curvature radius R9 of the object-side surface of the fifth lens satisfy the following conditions: 3.39≤f5×N5 / R9≤3.

71.

5. The optical imaging lens according to claim 1, wherein: The center thickness CT5 of the fifth lens on the optical axis, the Abbe number V6 of the sixth lens, the Abbe number V5 of the fifth lens, the curvature radius R10 of the image side surface of the fifth lens, and the curvature radius R11 of the object side surface of the sixth lens satisfy: -5.17≤CT5×(V6-V5) / (R10+R11)≤-3.

11.

6. The optical imaging lens according to claim 1, wherein: The combined focal length f123 of the first lens, the second lens, and the third lens, the center thickness CT1 of the first lens on the optical axis, the center thickness CT2 of the second lens on the optical axis, and the center thickness CT3 of the third lens on the optical axis satisfy the following: 3.27≤f123 / (CT1+CT2+CT3)≤3.

84.

7. The optical imaging lens according to claim 1, wherein: The spacing distance T56 between the fifth lens and the sixth lens on the optical axis and the distance SAG62 from the intersection of the image side surface of the sixth lens and the optical axis to the effective radius vertex of the image side surface of the sixth lens on the optical axis satisfy: 2.37≤T56 / SAG62≤6.

45.

8. The optical imaging lens according to claim 1, wherein: The distance T45 between the fourth lens and the fifth lens on the optical axis, the distance SAG41 from the intersection of the object-side surface of the fourth lens and the optical axis to the effective radius vertex of the object-side surface of the fourth lens on the optical axis, and the distance SAG42 from the intersection of the image-side surface of the fourth lens and the optical axis to the effective radius vertex of the image-side surface of the fourth lens on the optical axis satisfy the following conditions: 0.77≤T45 / (SAG41+ SAG42 )≤1.

27.

9. The optical imaging lens according to claim 1, wherein: The spacing distance T12 between the first lens and the second lens on the optical axis, the spacing distance T23 between the second lens and the third lens on the optical axis, the center thickness CT1 of the first lens on the optical axis, and the center thickness CT2 of the second lens on the optical axis satisfy the following: 1.70≤(T12+T23) / (CT1+CT2)≤2.

17.

10. The optical imaging lens according to claim 1, wherein: The effective focal length f6 of the sixth lens, the refractive index N6 of the sixth lens, the curvature radius R11 of the object-side surface of the sixth lens, and the curvature radius R12 of the image-side surface of the sixth lens satisfy: 1.86≤f6×N6 / (R11+R12)≤3.

48.

11. The optical imaging lens according to claim 1, wherein: The effective focal length f6 of the sixth lens, the spacing T56 between the fifth lens and the sixth lens on the optical axis, and the center thickness CT6 of the sixth lens on the optical axis satisfy: 5.41≤f6 / (T56+CT6)≤7.

75.

12. The optical imaging lens according to any one of claims 1 to 11, wherein: The distance TD between the object side surface of the first lens and the image side surface of the sixth lens on the optical axis, half the maximum field of view Semi-FOV of the optical imaging lens, the total effective focal length f of the optical imaging lens, and the aperture value Fno of the optical imaging lens satisfy the following conditions: 2.67≤TD×Tan(Semi-FOV) / (f×Fno)≤3.64.

Images