Optical imaging lens

Abstract

The present application discloses an optical imaging lens, which comprises, in order from the object side to the image side along the optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, each having optical power, in order from the object side to the image side along the optical axis. The fifth lens has positive optical power; the object side surface of the sixth lens is concave; the total effective focal length f of the optical imaging lens and half of the maximum field of view (Semi-FOV) of the optical imaging lens satisfy the following conditions: 4mm<f×tan(Semi-FOV)<5.5mm; the center thickness CT6 of the sixth lens and the air gap T56 between the fifth lens and the sixth lens on the optical axis satisfy the following conditions: 1.5<CT6 / T56<4; and the total effective focal length f of the optical imaging lens, the effective focal length f1 of the first lens, and the effective focal length f5 of the fifth lens satisfy the following conditions: 3.5<(f+f1) / f5<5.7.

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] With technological advancements, portable electronic devices such as mobile phones and tablets have experienced rapid development, gradually becoming thinner, lighter, and more compact. However, thinner bodies and smaller spaces pose significant challenges to the optical imaging lenses used in mobile phones and other devices.

[0003] How to ensure the imaging quality of the optical imaging lens while making the optical imaging lens have a smaller thickness to make the mobile phone more beautiful is one of the problems that many optical imaging lens designers currently need to focus on and solve. Summary of the Invention

[0004] In one aspect, the present application provides an optical imaging lens comprising, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, each having optical power. The fifth lens has positive optical power. The object-side surface of the sixth lens is concave. The total effective focal length f of the optical imaging lens and half of the maximum field of view (Semi-FOV) of the optical imaging lens satisfy the following conditions: 4mm < f × tan(Semi-FOV) < 5.5mm. The center thickness CT6 of the sixth lens and the air gap T56 on the optical axis between the fifth and sixth lenses satisfy the following conditions: 1.5 < CT6 / T56 < 4. The total effective focal length f of the optical imaging lens, the effective focal length f1 of the first lens, and the effective focal length f5 of the fifth lens satisfy the following conditions: 3.5 < (f + f1) / f5 < 5.7.

[0005] In one embodiment, 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.

[0006] In one embodiment, the effective focal length f5 of the fifth lens and the total effective focal length f of the optical imaging lens may satisfy: f5 / f≤0.8.

[0007] In one embodiment, an air gap T45 between the fourth lens and the fifth lens on the optical axis and an air gap T56 between the fifth lens and the sixth lens on the optical axis may satisfy: 1.2<T45 / T56<4.

[0008] In one embodiment, the center thickness CT5 of the fifth lens, the air gap T56 between the fifth lens and the sixth lens on the optical axis, and the distance BFL from the image-side surface of the sixth lens to the imaging plane of the optical imaging lens on the optical axis may satisfy: (CT5+T56) / BFL<0.8.

[0009] In one embodiment, a curvature radius R10 of the image-side surface of the fifth lens and an effective focal length f5 of the fifth lens may satisfy: |R10| / f5<1.

[0010] In one embodiment, the curvature radius R3 of the object side surface of the second lens, the curvature radius R4 of the image side surface of the second lens, and the center thickness CT2 of the second lens may satisfy: -0.5 mm 2 <(R3-R4)×CT2<0.6mm 2 .

[0011] In one embodiment, the optical imaging lens may satisfy: |(SAG61+SAG62) / SAG51|<3.5, wherein SAG61 is the distance from the intersection of the object side surface of the sixth lens and the optical axis to the vertex of the effective radius of the object side surface of the sixth lens on the optical axis, 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, and SAG51 is the distance from the intersection of the object side surface of the fifth lens and the optical axis to the vertex of the effective radius of the object side surface of the fifth lens on the optical axis.

[0012] In one embodiment, an edge thickness ET5 of the fifth lens at the maximum effective radius and an edge thickness ET6 of the sixth lens at the maximum effective radius may satisfy: 0.5<ET6 / ET5<2.

[0013] In one embodiment, the combined focal length f45 of the fourth lens and the fifth lens and the effective focal length f1 of the first lens may satisfy: 0<f45 / f1<1.

[0014] In one embodiment, the entrance pupil diameter EPD of the optical imaging lens and the center thickness CT1 of the first lens element may satisfy: 3<EPD / CT1<4.

[0015] In one embodiment, a curvature radius R11 of the object-side surface of the sixth lens and a curvature radius R12 of the image-side surface of the sixth lens may satisfy: |(R11+R12) / (R11-R12)|<0.9.

[0016] In one embodiment, an effective radius DT61 of the object-side surface of the sixth lens and an effective radius DT62 of the image-side surface of the sixth lens may satisfy the following: 0.5<DT61 / DT62<1.5.

[0017] In one embodiment, an edge thickness ET3 of the third lens at the maximum effective radius and an edge thickness ET4 of the fourth lens at the maximum effective radius may satisfy: |(ET4-ET3) / ET4|<0.7.

[0018] In one embodiment, the center thickness CT4 of the fourth lens, the center thickness CT5 of the fifth lens, the center thickness CT6 of the sixth lens, and the sum ΣCT of the center thicknesses of the first to sixth lenses may satisfy: (CT4+CT5+CT6) / ΣCT<0.8.

[0019] In one embodiment, a distance TD from the object-side surface of the first lens to the image-side surface of the sixth lens on the optical axis and a distance TTL from the object-side surface of the first lens to the imaging plane of the optical imaging lens on the optical axis may satisfy: TD / TTL<0.9.

[0020] Another aspect of the present application provides an optical imaging lens, comprising, in order from the object side to the image side along the optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, each having optical power. The fifth lens has positive optical power. The object-side surface of the sixth lens is concave. The total effective focal length f of the optical imaging lens, the effective focal length f1 of the first lens, and the effective focal length f5 of the fifth lens satisfy the following: 3.5 < (f + f1) / f5 < 5.7. The edge thickness ET3 of the third lens at its maximum effective radius and the edge thickness ET4 of the fourth lens at its maximum effective radius satisfy the following: |(ET4 - ET3) / ET4| < 0.7.

[0021] In one embodiment, the effective focal length f5 of the fifth lens may satisfy: f5 / f≤0.8.

[0022] In one embodiment, an air gap T45 between the fourth lens and the fifth lens on the optical axis and an air gap T56 between the fifth lens and the sixth lens on the optical axis may satisfy: 1.2<T45 / T56<4.

[0023] In one embodiment, the center thickness CT5 of the fifth lens, the air gap T56 between the fifth lens and the sixth lens on the optical axis, and the distance BFL from the image-side surface of the sixth lens to the imaging plane of the optical imaging lens on the optical axis may satisfy: (CT5+T56) / BFL<0.8.

[0024] In one embodiment, a curvature radius R10 of the image-side surface of the fifth lens and an effective focal length f5 of the fifth lens may satisfy: |R10| / f5<1.

[0025] In one embodiment, the curvature radius R3 of the object side surface of the second lens, the curvature radius R4 of the image side surface of the second lens, and the center thickness CT2 of the second lens may satisfy: -0.5 mm 2 <(R3-R4)×CT2<0.6mm 2 .

[0026] In one embodiment, the optical imaging lens may satisfy: |(SAG61+SAG62) / SAG51|<3.5, wherein SAG61 is the distance from the intersection of the object side surface of the sixth lens and the optical axis to the vertex of the effective radius of the object side surface of the sixth lens on the optical axis, 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, and SAG51 is the distance from the intersection of the object side surface of the fifth lens and the optical axis to the vertex of the effective radius of the object side surface of the fifth lens on the optical axis.

[0027] In one embodiment, an edge thickness ET5 of the fifth lens at the maximum effective radius and an edge thickness ET6 of the sixth lens at the maximum effective radius may satisfy: 0.5<ET6 / ET5<2.

[0028] In one embodiment, the combined focal length f45 of the fourth lens and the fifth lens and the effective focal length f1 of the first lens may satisfy: 0<f45 / f1<1.

[0029] In one embodiment, the entrance pupil diameter EPD of the optical imaging lens and the center thickness CT1 of the first lens element may satisfy: 3<EPD / CT1<4.

[0030] In one embodiment, a curvature radius R11 of the object-side surface of the sixth lens and a curvature radius R12 of the image-side surface of the sixth lens may satisfy: |(R11+R12) / (R11-R12)|<0.9.

[0031] In one embodiment, an effective radius DT61 of the object-side surface of the sixth lens and an effective radius DT62 of the image-side surface of the sixth lens may satisfy the following: 0.5<DT61 / DT62<1.5.

[0032] In one embodiment, the total effective focal length f of the optical imaging lens and half of the maximum field of view (Semi-FOV) of the optical imaging lens may satisfy the following relationship: 4 mm < f × tan (Semi-FOV) < 5.5 mm.

[0033] In one embodiment, a center thickness CT6 of the sixth lens and an air gap T56 between the fifth lens and the sixth lens on the optical axis may satisfy: 1.5<CT6 / T56<4.

[0034] In one embodiment, the center thickness CT4 of the fourth lens, the center thickness CT5 of the fifth lens, the center thickness CT6 of the sixth lens, and the sum ΣCT of the center thicknesses of the first to sixth lenses may satisfy: (CT4+CT5+CT6) / ΣCT<0.8.

[0035] In one embodiment, a distance TD from the object-side surface of the first lens to the image-side surface of the sixth lens on the optical axis and a distance TTL from the object-side surface of the first lens to the imaging plane of the optical imaging lens on the optical axis may satisfy: TD / TTL<0.9.

[0036] The present application provides an optical imaging lens suitable for portable electronic products by reasonably allocating optical focal length and optimizing optical parameters, which has at least one of the characteristics of being lightweight, miniaturized, and having good imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] 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:

[0038] Figure 1 1 shows a schematic structural diagram of an optical imaging lens according to Example 1 of the present application;

[0039] Figures 2A to 2D axial chromatic aberration curve, magnification chromatic aberration curve, astigmatism curve, and distortion curve of the optical imaging lens of Example 1 are respectively shown;

[0040] Figure 3 1 shows a schematic structural diagram of an optical imaging lens according to Example 2 of the present application;

[0041] Figures 4A to 4D axial chromatic aberration curve, magnification chromatic aberration curve, astigmatism curve, and distortion curve of the optical imaging lens of Example 2 are respectively shown;

[0042] Figure 5 1 shows a schematic structural diagram of an optical imaging lens according to Example 3 of the present application;

[0043] 6A to 6D axial chromatic aberration curve, lateral chromatic aberration curve, astigmatism curve, and distortion curve of the optical imaging lens of Example 3 are respectively shown;

[0044] Figure 7 1 shows a schematic structural diagram of an optical imaging lens according to Example 4 of the present application;

[0045] Figures 8A to 8D axial chromatic aberration curve, magnification chromatic aberration curve, astigmatism curve, and distortion curve of the optical imaging lens of Example 4 are respectively shown;

[0046] Figure 9 1 shows a schematic structural diagram of an optical imaging lens according to Example 5 of the present application;

[0047] 10A to 10D axial chromatic aberration curve, lateral chromatic aberration curve, astigmatism curve, and distortion curve of the optical imaging lens of Example 5 are shown respectively;

[0048] Figure 11 1 shows a schematic structural diagram of an optical imaging lens according to Example 6 of the present application;

[0049] 12A to 12D axial chromatic aberration curve, lateral chromatic aberration curve, astigmatism curve, and distortion curve of the optical imaging lens of Example 6 are shown respectively;

[0050] Figure 13 1 shows a schematic structural diagram of an optical imaging lens according to Example 7 of the present application;

[0051] 14A to 14D axial chromatic aberration curve, lateral chromatic aberration curve, astigmatism curve, and distortion curve of the optical imaging lens of Example 7 are shown respectively;

[0052] Figure 15 shows a schematic structural diagram of an optical imaging lens according to Example 8 of the present application; and

[0053] 16A to 16D The axial chromatic aberration curve, the magnification chromatic aberration curve, the astigmatism curve, and the distortion curve of the optical imaging lens of Example 8 are respectively shown. DETAILED DESCRIPTION

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0061] The features, principles and other aspects of the present application are described in detail below.

[0062] 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.

[0063] In an exemplary embodiment, the first lens may have positive or negative optical power; the second lens may have positive or negative optical power; the third lens may have positive or negative optical power; the fourth lens may have positive or negative optical power; the fifth lens may have positive optical power; and the sixth lens may have positive or negative optical power, and its object-side surface may be concave. By rationally controlling the optical power of each lens, this application can effectively balance high-order aberrations and improve imaging quality.

[0064] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following conditions: 4mm < f × tan(Semi-FOV) < 5.5mm, where f is the total effective focal length of the optical imaging lens and Semi-FOV is half of the maximum field of view of the optical imaging lens. More specifically, f and Semi-FOV may further satisfy the following conditions: 4.3mm < f × tan(Semi-FOV) < 4.8mm. Meeting 4mm < f × tan(Semi-FOV) < 5.5mm facilitates achieving a large image plane.

[0065] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: 1.5 < CT6 / T56 < 4, where CT6 is the center thickness of the sixth lens element, and T56 is the air gap between the fifth and sixth lenses on the optical axis. More specifically, CT6 and T56 may further satisfy the following relationship: 1.7 < CT6 / T56 < 3.9. This 1.5 < CT6 / T56 < 4 effectively controls the curvature of the external field of view.

[0066] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: 3.5 < (f + f1) / f5 < 5.7, where f is the total effective focal length of the optical imaging lens, f1 is the effective focal length of the first lens element, and f5 is the effective focal length of the fifth lens element. More specifically, f, f1, and f5 may further satisfy the following relationship: 3.8 < (f + f1) / f5 < 5.5. This 3.5 < (f + f1) / f5 < 5.7 relationship effectively reduces high-order aberrations generated during imaging and improves imaging quality.

[0067] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: f5 / f ≤ 0.8, where f5 is the effective focal length of the fifth lens element and f is the total effective focal length of the optical imaging lens. More specifically, f5 and f may further satisfy the following relationship: f5 / f ≤ 0.6. This relationship effectively reduces high-order aberrations generated during imaging and improves image quality.

[0068] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: 1.2 < T45 / T56 < 4, where T45 is the air gap between the fourth and fifth lenses on the optical axis, and T56 is the air gap between the fifth and sixth lenses on the optical axis. More specifically, T45 and T56 may further satisfy the following relationship: 1.3 < T45 / T56 < 2.7. This 1.2 < T45 / T56 < 4 helps control field curvature and improve imaging quality.

[0069] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: (CT5 + T56) / BFL < 0.8, where CT5 is the center thickness of the fifth lens element, T56 is the air gap between the fifth and sixth lenses on the optical axis, and BFL is the distance on the optical axis from the image-side surface of the sixth lens element to the imaging plane of the optical imaging lens. More specifically, CT5, T56, and BFL may further satisfy the following relationship: (CT5 + T56) / BFL < 0.7. This relationship helps reduce the overall length of the lens while increasing the back focal length of the lens, facilitating telescopic functionality.

[0070] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: |R10| / f5 < 1, where R10 is the radius of curvature of the image-side surface of the fifth lens element, and f5 is the effective focal length of the fifth lens element. More specifically, R10 and f5 may further satisfy the following relationship: |R10| / f5 < 0.6. This relationship facilitates proper control of the shape of the fifth lens element for easier processing.

[0071] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: -0.5mm 2 <(R3-R4)×CT2<0.6mm 2 , where R3 is the radius of curvature of the object side of the second lens, R4 is the radius of curvature of the image side of the second lens, and CT2 is the center thickness of the second lens. More specifically, R3, R4, and CT2 may further satisfy: -0.2 mm 2 <(R3-R4)×CT2<0.6mm 2 . Satisfy -0.5mm 2 <(R3-R4)×CT2<0.6mm 2 , which can improve the overall imaging quality of the lens.

[0072] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy: |(SAG61+SAG62) / SAG51|<3.5, wherein SAG61 is the distance from the intersection of the object-side surface of the sixth lens and the optical axis to the vertex of the effective radius of the object-side surface of the sixth lens on the optical axis, 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, and SAG51 is the distance from the intersection of the object-side surface of the fifth lens and the optical axis to the vertex of the effective radius of the object-side surface of the fifth lens on the optical axis. More specifically, SAG61, SAG62, and SAG51 may further satisfy: |(SAG61+SAG62) / SAG51|<3.3. Satisfying |(SAG61+SAG62) / SAG51|<3.5 can reduce distortion.

[0073] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: 0.5 < ET6 / ET5 < 2, where ET5 is the edge thickness of the fifth lens element at its maximum effective radius, and ET6 is the edge thickness of the sixth lens element at its maximum effective radius. More specifically, ET6 and ET5 may further satisfy the following relationship: 0.7 < ET6 / ET5 < 1.6. This 0.5 < ET6 / ET5 < 2 reduces off-axis field of view aberrations.

[0074] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: 0 < f45 / f1 < 1, where f45 is the combined focal length of the fourth and fifth lenses, and f1 is the effective focal length of the first lens. More specifically, f45 and f1 may further satisfy the following relationship: 0.3 < f45 / f1 < 0.6. This 0 < f45 / f1 < 1 balances the aberrations generated by the first lens, resulting in a relatively small aberration in the overall lens.

[0075] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: 3 < EPD / CT1 < 4, where EPD is the entrance pupil diameter of the optical imaging lens and CT1 is the center thickness of the first lens element. More specifically, EPD and CT1 may further satisfy the following relationship: 3.3 < EPD / CT1 < 3.8. This relationship can increase the amount of light entering the lens, speed up imaging, and improve image quality in low-light environments.

[0076] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following: |(R11+R12) / (R11-R12)|<0.9, where R11 is the radius of curvature of the object-side surface of the sixth lens element, and R12 is the radius of curvature of the image-side surface of the sixth lens element. This can reduce lens aberrations and improve imaging quality.

[0077] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: 0.5 < DT61 / DT62 < 1.5, where DT61 is the effective radius of the object-side surface of the sixth lens element, and DT62 is the effective radius of the image-side surface of the sixth lens element. More specifically, DT61 and DT62 may further satisfy the following relationship: 0.8 < DT61 / DT62 < 1. This 0.5 < DT61 / DT62 < 1.5 relationship improves the processability of the sixth lens element.

[0078] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: |(ET4 - ET3) / ET4| < 0.7, where ET3 is the edge thickness of the third lens element at its maximum effective radius, and ET4 is the edge thickness of the fourth lens element at its maximum effective radius. More specifically, ET4 and ET3 may further satisfy the following relationship: |(ET4 - ET3) / ET4| < 0.5. Meeting |(ET4 - ET3) / ET4| < 0.7 can reduce lens aberrations and improve imaging quality.

[0079] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: (CT4 + CT5 + CT6) / ∑CT < 0.8, where CT4 is the center thickness of the fourth lens element, CT5 is the center thickness of the fifth lens element, CT6 is the center thickness of the sixth lens element, and ∑CT is the sum of the center thicknesses of the first through sixth lenses. More specifically, CT4, CT5, CT6, and ∑CT may further satisfy the following relationship: (CT4 + CT5 + CT6) / ∑CT < 0.6. This relationship allows the overall lens length to be minimized while maintaining imaging quality.

[0080] In an exemplary embodiment, the optical imaging lens according to the present application may satisfy the following relationship: TD / TTL < 0.9, where TD is the distance along the optical axis from the object-side surface of the first lens element to the image-side surface of the sixth lens element, and TTL is the distance along the optical axis from the object-side surface of the first lens element to the imaging plane of the optical imaging lens. More specifically, TD and TTL may further satisfy the following relationship: TD / TTL < 0.8. Meeting TD / TTL < 0.9 facilitates the telescopic function of the lens.

[0081] In an exemplary embodiment, the effective focal length f1 of the first lens may be, for example, in the range of 4.86 mm to 6.84 mm, the effective focal length f5 of the fifth lens may be, for example, in the range of 2.19 mm to 2.54 mm, and the effective focal length f6 of the sixth lens may be, for example, in the range of -2.48 mm to -2.04 mm.

[0082] In an exemplary embodiment, the total effective focal length f of the optical imaging lens can be, for example, in the range of 5.04 mm to 5.39 mm, the total length TTL of the optical imaging lens (i.e., the distance from the object-side surface S1 of the first lens E1 to the imaging surface S15 of the optical imaging lens on the optical axis) can be, for example, in the range of 5.93 mm to 6.35 mm, half the diagonal length ImgH of the effective pixel area on the imaging surface S15 of the optical imaging lens can be, for example, in the range of 4.7 mm to 5.0 mm, half the maximum field of view Semi-FOV of the optical imaging lens can be, for example, in the range of 39° to 43°, and the aperture value FNO of the optical imaging lens can be, for example, in the range of 1.8 to 1.9.

[0083] In an exemplary embodiment, the optical imaging lens according to the present application further includes an aperture provided between the object side and the first lens. Optionally, the optical imaging lens may further include a filter for correcting color deviation and / or a protective glass for protecting the photosensitive element located on the imaging surface. The present application proposes an optical imaging lens having the characteristics of miniaturization, back focal length, and high imaging quality. The optical imaging lens according to the above embodiment of the present application may adopt multiple lenses, such as the six lenses mentioned above. By reasonably allocating the optical power, surface shape, center thickness of each lens, and axial spacing between each lens, etc., the incident light can be effectively converged, the total optical length of the imaging lens can be reduced, and the processability of the imaging lens can be improved, making the optical imaging lens more conducive to production and processing.

[0084] In an embodiment of the present application, 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.

[0085] 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.

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

[0087] Example 1

[0088] The following reference Figures 1 to 2D The optical imaging lens according to Example 1 of the present application is described. Figure 1 A schematic structural diagram of an optical imaging lens according to Example 1 of the present application is shown.

[0089] like Figure 1 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0090] The first lens E1 has positive focal power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has positive focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex and its image-side surface S6 being convex. The fourth lens E4 has negative focal power, with its object-side surface S7 being concave and its image-side surface S8 being concave. The fifth lens E5 has positive focal power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has negative focal power, with its object-side surface S11 being concave 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 an object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0091] 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).

[0092]

[0093] Table 1

[0094] In this example, the total effective focal length f of the optical imaging lens is 5.06 mm, half of the maximum field of view angle Semi-FOV of the optical imaging lens is 41.49°, the total length TTL of the optical imaging lens is 6.04 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens ImgH is 4.84 mm, and the aperture value FNO of the optical imaging lens is 1.88.

[0095] 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:

[0096]

[0097] Wherein, x is the distance vector height of the aspheric surface 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 of the i-th order of the aspheric surface. The following Tables 2-1 and 2-2 give the high-order coefficients A4, A6, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28, A29, A30, A31, A32, A33, A34, A35, A36, A37, A38, A39, A40, A41, A42, A43, A44, A45, A46, A47, A50, A51, A52, A53, A54, A55, A56, A57, A58, A59, A60, A61, A71, A72, A73, A74, A75, A80, A81, A9, A10, A11, A12, A13, A14, A15 10 、A 12 、A 14 、A 16 、A 18 、A 20 、A 22 、A 24 、A 26 、A 28 and A 30 .

[0098]

[0099]

[0100] Table 2-1

[0101] Face number A18 A20 A22 A24 A26 A28 A30 S1 2.12E+01 -1.36E+01 6.03E+00 -1.74E+00 2.98E-01 -2.27E-02 0.00E+00 S2 2.44E+00 -1.61E+00 6.64E-01 -1.56E-01 1.58E-02 0.00E+00 0.00E+00 S3 9.46E+00 -5.37E+00 1.97E+00 -4.23E-01 4.00E-02 0.00E+00 0.00E+00 S4 -4.10E+01 3.06E+01 -1.56E+01 5.22E+00 -1.02E+00 8.86E-02 0.00E+00 S5 2.09E+02 -1.73E+02 9.89E+01 -3.69E+01 8.10E+00 -7.92E-01 0.00E+00 S6 -2.95E+01 2.05E+01 -9.78E+00 3.04E+00 -5.54E-01 4.51E-02 0.00E+00 S7 2.44E+01 -1.49E+01 6.30E+00 -1.74E+00 2.86E-01 -2.10E-02 0.00E+00 S8 3.36E-01 9.05E-03 -6.97E-02 3.49E-02 -8.81E-03 1.18E-03 -6.66E-05 S9 2.95E-01 -1.20E-01 3.51E-02 -6.96E-03 8.61E-04 -5.56E-05 1.13E-06 S10 -1.71E-02 3.91E-03 -6.11E-04 6.21E-05 -3.69E-06 9.64E-08 9.77E-11 S11 -2.39E-03 3.33E-04 -3.36E-05 2.38E-06 -1.13E-07 3.21E-09 -4.15E-11 S12 2.34E-04 -3.16E-05 3.11E-06 -2.15E-07 9.89E-09 -2.72E-10 3.39E-12

[0102] Table 2-2

[0103] 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 passing through the lens. Figure 2B The chromatic aberration curve of the optical imaging lens of Example 1 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figure 2C 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 2DThe distortion curve of the optical imaging lens of Example 1 is shown, which represents the distortion value corresponding to different field angles. Figures 2A to 2D It can be seen that the optical imaging lens provided in Example 1 can achieve good imaging quality.

[0104] Example 2

[0105] The following reference Figures 3 to 4D 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 A schematic structural diagram of an optical imaging lens according to Example 2 of the present application is shown.

[0106] like Figure 3 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0107] 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 negative optical power, with its object-side surface S5 being convex and its image-side surface S6 being concave. 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 convex. 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 E7 has an object-side surface S13 and an image-side surface S14. Light from an object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0108] In this example, the total effective focal length f of the optical imaging lens is 5.14 mm, half of the maximum field of view angle Semi-FOV of the optical imaging lens is 40.26°, the total length TTL of the optical imaging lens is 6.24 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens ImgH is 4.84 mm, and the aperture value FNO of the optical imaging lens is 1.88.

[0109] Table 3 shows the basic parameters of the optical imaging lens of Example 2, where the units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Tables 4-1 and 4-2 show the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 2, where the surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0110]

[0111] Table 3

[0112] Face number A4 A6 A8 A10 A12 A14 A16 S1 -2.55E-02 2.71E-01 -1.64E+00 6.23E+00 -1.58E+01 2.77E+01 -3.41E+01 S2 -6.43E-02 -2.85E-02 2.93E-01 -1.01E+00 2.30E+00 -3.59E+00 3.87E+00 S3 -9.62E-02 1.38E-01 -8.09E-01 3.49E+00 -9.23E+00 1.61E+01 -1.92E+01 S4 -1.97E-02 -9.72E-02 9.29E-01 -4.66E+00 1.57E+01 -3.64E+01 5.88E+01 S5 -6.48E-02 4.99E-01 -3.61E+00 1.67E+01 -5.25E+01 1.15E+02 -1.77E+02 S6 -7.81E-02 1.02E-01 3.14E-02 -1.18E+00 4.18E+00 -8.34E+00 1.09E+01 S7 -2.12E-01 4.42E-01 -1.28E+00 3.00E+00 -5.23E+00 6.55E+00 -5.81E+00 S8 -1.91E-01 1.32E-01 1.87E-01 -1.29E+00 3.18E+00 -4.85E+00 5.03E+00 S9 -2.98E-02 -1.36E-01 7.62E-01 -2.09E+00 3.61E+00 -4.25E+00 3.54E+00 S10 2.32E-01 -2.99E-01 4.44E-01 -5.86E-01 6.04E-01 -4.55E-01 2.46E-01 S11 6.83E-02 -1.94E-01 2.09E-01 -1.44E-01 7.03E-02 -2.45E-02 6.13E-03 S12 -2.05E-01 1.27E-01 -7.62E-02 3.87E-02 -1.56E-02 4.79E-03 -1.11E-03

[0113] Table 4-1

[0114] Face number A18 A20 A22 A24 A26 A28 A30 S1 2.98E+01 -1.83E+01 7.78E+00 -2.16E+00 3.55E-01 -2.60E-02 0.00E+00 S2 -2.89E+00 1.47E+00 -4.84E-01 9.34E-02 -8.03E-03 0.00E+00 0.00E+00 S3 1.56E+01 -8.57E+00 3.02E+00 -6.19E-01 5.60E-02 0.00E+00 0.00E+00 S4 -6.72E+01 5.39E+01 -2.97E+01 1.07E+01 -2.29E+00 2.18E-01 0.00E+00 S5 1.94E+02 -1.50E+02 7.94E+01 -2.76E+01 5.65E+00 -5.15E-01 0.00E+00 S6 -9.64E+00 5.88E+00 -2.43E+00 6.45E-01 -9.97E-02 6.79E-03 0.00E+00 S7 3.60E+00 -1.51E+00 4.06E-01 -6.38E-02 4.67E-03 -5.50E-05 0.00E+00 S8 -3.70E+00 1.95E+00 -7.26E-01 1.88E-01 -3.18E-02 3.19E-03 -1.43E-04 S9 -2.12E+00 9.19E-01 -2.84E-01 6.11E-02 -8.67E-03 7.27E-04 -2.73E-05 S10 -9.62E-02 2.70E-02 -5.40E-03 7.49E-04 -6.86E-05 3.72E-06 -9.07E-08 S11 -1.12E-03 1.47E-04 -1.40E-05 9.33E-07 -4.14E-08 1.10E-09 -1.33E-11 S12 1.90E-04 -2.40E-05 2.19E-06 -1.40E-07 5.91E-09 -1.49E-10 1.69E-12

[0115] Table 4-2

[0116] 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 passing through the lens. Figure 4B The chromatic aberration curve of the optical imaging lens of Example 2 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figure 4C 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 4D The distortion curve of the optical imaging lens of Example 2 is shown, which represents the distortion value corresponding to different field angles. Figures 4A to 4D It can be seen that the optical imaging lens provided in Example 2 can achieve good imaging quality.

[0117] Example 3

[0118] The following reference Figures 5 to 6D An optical imaging lens according to Example 3 of the present application is described. Figure 5 A schematic structural diagram of an optical imaging lens according to Example 3 of the present application is shown.

[0119] like Figure 5 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0120] The first lens E1 has positive focal power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has negative focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex and its image-side surface S6 being convex. The fourth lens E4 has negative focal power, with its object-side surface S7 being convex and its image-side surface S8 being concave. The fifth lens E5 has positive focal power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has negative focal power, with its object-side surface S11 being concave 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.

[0121] In this example, the total effective focal length f of the optical imaging lens is 5.34 mm, half of the maximum field of view angle Semi-FOV of the optical imaging lens is 41.40°, the total length TTL of the optical imaging lens is 6.28 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens ImgH is 4.84 mm, and the aperture value FNO of the optical imaging lens is 1.88.

[0122] Table 5 shows the basic parameters of the optical imaging lens of Example 3, where the units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Tables 6-1 and 6-2 show the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 3, where the surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0123]

[0124] Table 5

[0125] Face number A4 A6 A8 A10 A12 A14 A16 S1 -2.27E-02 2.13E-01 -1.16E+00 4.01E+00 -9.27E+00 1.48E+01 -1.66E+01 S2 -5.54E-02 6.05E-04 7.12E-02 -1.27E-01 -3.55E-02 5.69E-01 -1.14E+00 S3 -8.91E-02 1.03E-01 -4.91E-01 1.90E+00 -4.56E+00 7.27E+00 -7.93E+00 S4 -2.83E-02 -8.83E-02 9.20E-01 -4.68E+00 1.58E+01 -3.63E+01 5.82E+01 S5 -5.71E-02 3.85E-01 -2.74E+00 1.24E+01 -3.82E+01 8.24E+01 -1.27E+02 S6 -7.76E-02 -4.98E-03 6.91E-01 -3.73E+00 1.07E+01 -1.99E+01 2.52E+01 S7 -1.98E-01 2.79E-01 -8.22E-01 2.44E+00 -5.56E+00 9.03E+00 -1.03E+01 S8 -1.61E-01 3.25E-02 3.23E-01 -1.22E+00 2.50E+00 -3.39E+00 3.22E+00 S9 -7.45E-03 -9.06E-02 4.15E-01 -1.15E+00 2.06E+00 -2.53E+00 2.21E+00 S10 2.52E-01 -2.82E-01 2.87E-01 -2.06E-01 8.21E-02 5.39E-03 -2.84E-02 S11 8.38E-02 -2.58E-01 3.28E-01 -2.74E-01 1.59E-01 -6.48E-02 1.90E-02 S12 -2.31E-01 1.74E-01 -1.31E-01 8.40E-02 -4.23E-02 1.62E-02 -4.62E-03

[0126] Table 6-1

[0127] Face number A18 A20 A22 A24 A26 A28 A30 S1 1.33E+01 -7.50E+00 2.91E+00 -7.42E-01 1.12E-01 -7.52E-03 0.00E+00 S2 1.21E+00 -7.71E-01 2.98E-01 -6.42E-02 5.96E-03 0.00E+00 0.00E+00 S3 5.94E+00 -3.01E+00 9.81E-01 -1.86E-01 1.57E-02 0.00E+00 0.00E+00 S4 -6.58E+01 5.21E+01 -2.82E+01 9.99E+00 -2.07E+00 1.91E-01 0.00E+00 S5 1.39E+02 -1.09E+02 5.90E+01 -2.11E+01 4.46E+00 -4.25E-01 0.00E+00 S6 -2.22E+01 1.36E+01 -5.68E+00 1.55E+00 -2.48E-01 1.77E-02 0.00E+00 S7 8.34E+00 -4.68E+00 1.79E+00 -4.46E-01 6.53E-02 -4.27E-03 0.00E+00 S8 -2.19E+00 1.08E+00 -3.78E-01 9.27E-02 -1.50E-02 1.43E-03 -6.16E-05 S9 -1.39E+00 6.31E-01 -2.04E-01 4.56E-02 -6.73E-03 5.86E-04 -2.27E-05 S10 1.81E-02 -6.43E-03 1.46E-03 -2.19E-04 2.08E-05 -1.15E-06 2.80E-08 S11 -4.06E-03 6.40E-04 -7.38E-05 6.06E-06 -3.37E-07 1.14E-08 -1.75E-10 S12 9.81E-04 -1.54E-04 1.75E-05 -1.40E-06 7.48E-08 -2.39E-09 3.46E-11

[0128] Table 6-2

[0129] 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 passing through the lens. Figure 6B The chromatic aberration curve of the optical imaging lens of Example 3 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figure 6C 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 6D The distortion curve of the optical imaging lens of Example 3 is shown, which represents the distortion value corresponding to different field angles. 6A to 6D It can be seen that the optical imaging lens provided in Example 3 can achieve good imaging quality.

[0130] Example 4

[0131] The following reference Figures 7 to 8D An optical imaging lens according to Example 4 of the present application is described. Figure 7 A schematic structural diagram of an optical imaging lens according to Example 4 of the present application is shown.

[0132] like Figure 7As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0133] The first lens E1 has positive focal power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has negative focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has negative focal power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has positive focal power, with its object-side surface S7 being convex and its image-side surface S8 being concave. The fifth lens E5 has positive focal power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has negative focal power, with its object-side surface S11 being concave 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.

[0134] In this example, the total effective focal length f of the optical imaging lens is 5.04 mm, half of the maximum field of view angle Semi-FOV of the optical imaging lens is 41.18°, the total length TTL of the optical imaging lens is 5.93 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens ImgH is 4.84 mm, and the aperture value FNO of the optical imaging lens is 1.88.

[0135] Table 7 shows the basic parameters of the optical imaging lens of Example 4, where the units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Tables 8-1 and 8-2 show the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 4, where the surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0136]

[0137] Table 7

[0138] Face number A4 A6 A8 A10 A12 A14 A16 S1 -1.03E-02 1.25E-01 -8.12E-01 3.33E+00 -9.09E+00 1.71E+01 -2.25E+01 S2 -7.64E-02 4.21E-02 1.20E-01 -4.84E-01 9.36E-01 -1.10E+00 7.42E-01 S3 -1.11E-01 1.19E-01 -3.10E-01 1.42E+00 -4.29E+00 8.32E+00 -1.08E+01 S4 -4.13E-02 4.80E-02 -6.13E-02 3.87E-01 -1.09E+00 1.02E+00 2.10E+00 S5 -5.18E-02 2.23E-01 -1.33E+00 5.19E+00 -1.39E+01 2.55E+01 -3.15E+01 S6 -1.48E-01 2.98E-01 -8.84E-01 2.41E+00 -5.64E+00 1.03E+01 -1.39E+01 S7 -2.24E-01 3.44E-01 -1.07E+00 3.14E+00 -6.87E+00 1.06E+01 -1.15E+01 S8 -1.44E-01 9.43E-02 -9.47E-02 4.93E-02 1.46E-01 -5.05E-01 8.18E-01 S9 -4.00E-02 5.98E-02 -2.11E-01 5.42E-01 -1.02E+00 1.39E+00 -1.37E+00 S10 2.12E-01 -2.52E-01 2.86E-01 -2.81E-01 2.35E-01 -1.51E-01 6.97E-02 S11 7.26E-02 -2.21E-01 2.60E-01 -1.89E-01 9.34E-02 -3.24E-02 8.03E-03 S12 -2.12E-01 1.33E-01 -7.63E-02 3.64E-02 -1.38E-02 4.04E-03 -8.99E-04

[0139] Table 8-1

[0140] Face number A18 A20 A22 A24 A26 A28 A30 S1 2.10E+01 -1.37E+01 6.18E+00 -1.82E+00 3.16E-01 -2.44E-02 0.00E+00 S2 -1.96E-01 -9.50E-02 9.88E-02 -3.26E-02 3.98E-03 0.00E+00 0.00E+00 S3 9.56E+00 -5.67E+00 2.16E+00 -4.77E-01 4.65E-02 0.00E+00 0.00E+00 S4 -8.07E+00 1.21E+01 -1.05E+01 5.37E+00 -1.53E+00 1.88E-01 0.00E+00 S5 2.55E+01 -1.19E+01 1.73E+00 1.23E+00 -6.83E-01 1.08E-01 0.00E+00 S6 1.38E+01 -9.68E+00 4.71E+00 -1.50E+00 2.81E-01 -2.36E-02 0.00E+00 S7 8.77E+00 -4.64E+00 1.66E+00 -3.82E-01 5.11E-02 -3.01E-03 0.00E+00 S8 -8.38E-01 5.80E-01 -2.75E-01 8.78E-02 -1.81E-02 2.17E-03 -1.16E-04 S9 9.68E-01 -4.90E-01 1.75E-01 -4.29E-02 6.87E-03 -6.44E-04 2.67E-05 S10 -2.30E-02 5.37E-03 -8.83E-04 9.93E-05 -7.26E-06 3.08E-07 -5.72E-09 S11 -1.45E-03 1.89E-04 -1.79E-05 1.20E-06 -5.33E-08 1.43E-09 -1.74E-11 S12 1.50E-04 -1.86E-05 1.69E-06 -1.08E-07 4.62E-09 -1.18E-10 1.37E-12

[0141] Table 8-2

[0142] 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 passing through the lens. Figure 8BThe chromatic aberration curve of the optical imaging lens of Example 4 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figure 8C 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 8D The distortion curve of the optical imaging lens of Example 4 is shown, which represents the distortion value corresponding to different field angles. Figures 8A to 8D It can be seen that the optical imaging lens provided in Example 4 can achieve good imaging quality.

[0143] Example 5

[0144] The following reference Figures 9 to 10D An optical imaging lens according to Example 5 of the present application is described. Figure 9 A schematic structural diagram of an optical imaging lens according to Example 5 of the present application is shown.

[0145] like Figure 9 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0146] The first lens E1 has positive focal power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has negative focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex and its image-side surface S6 being convex. The fourth lens E4 has negative focal power, with its object-side surface S7 being concave and its image-side surface S8 being concave. The fifth lens E5 has positive focal power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has negative focal power, with its object-side surface S11 being concave 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 an object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0147] In this example, the total effective focal length f of the optical imaging lens is 5.04 mm, half of the maximum field of view Semi-FOV of the optical imaging lens is 41.33°, the total length TTL of the optical imaging lens is 5.97 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens ImgH is 4.84 mm, and the aperture value FNO of the optical imaging lens is 1.88.

[0148] Table 9 shows the basic parameters of the optical imaging lens of Example 5, where the units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Tables 10-1 and 10-2 show the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 5, where the surface shape of each aspherical surface can be defined by formula (1) given in Example 1 above.

[0149]

[0150] Table 9

[0151] Face number A4 A6 A8 A10 A12 A14 A16 S1 -1.19E-02 1.52E-01 -9.67E-01 3.92E+00 -1.06E+01 1.98E+01 -2.59E+01 S2 -7.56E-02 1.94E-02 2.34E-01 -8.85E-01 1.96E+00 -2.92E+00 2.94E+00 S3 -1.10E-01 1.11E-01 -2.76E-01 1.34E+00 -4.11E+00 8.01E+00 -1.04E+01 S4 -4.12E-02 4.80E-02 -1.78E-01 1.63E+00 -7.76E+00 2.29E+01 -4.51E+01 S5 -6.33E-02 3.11E-01 -2.59E+00 1.33E+01 -4.59E+01 1.11E+02 -1.89E+02 S6 -5.39E-02 -1.07E-01 8.75E-01 -4.07E+00 1.17E+01 -2.28E+01 3.08E+01 S7 -1.47E-01 2.55E-01 -1.19E+00 4.23E+00 -1.04E+01 1.79E+01 -2.15E+01 S8 -1.56E-01 2.19E-01 -6.69E-01 1.66E+00 -2.96E+00 3.79E+00 -3.49E+00 S9 -7.53E-02 2.06E-01 -7.55E-01 1.86E+00 -3.20E+00 3.95E+00 -3.55E+00 S10 2.24E-01 -2.32E-01 2.02E-01 -1.30E-01 7.26E-02 -3.70E-02 1.50E-02 S11 6.75E-02 -2.11E-01 2.48E-01 -1.77E-01 8.63E-02 -2.96E-02 7.29E-03 S12 -2.35E-01 1.66E-01 -1.12E-01 6.30E-02 -2.80E-02 9.47E-03 -2.41E-03

[0152] Table 10-1

[0153] Face number A18 A20 A22 A24 A26 A28 A30 S1 2.39E+01 -1.56E+01 6.99E+00 -2.05E+00 3.55E-01 -2.75E-02 0.00E+00 S2 -1.98E+00 8.70E-01 -2.30E-01 3.12E-02 -1.36E-03 0.00E+00 0.00E+00 S3 9.24E+00 -5.49E+00 2.09E+00 -4.63E-01 4.52E-02 0.00E+00 0.00E+00 S4 6.14E+01 -5.79E+01 3.72E+01 -1.56E+01 3.83E+00 -4.21E-01 0.00E+00 S5 2.30E+02 -1.98E+02 1.18E+02 -4.59E+01 1.06E+01 -1.09E+00 0.00E+00 S6 -2.95E+01 1.98E+01 -9.17E+00 2.78E+00 -4.99E-01 4.01E-02 0.00E+00 S7 1.84E+01 -1.10E+01 4.50E+00 -1.20E+00 1.88E-01 -1.31E-02 0.00E+00 S8 2.32E+00 -1.11E+00 3.69E-01 -8.37E-02 1.21E-02 -9.83E-04 3.29E-05 S9 2.33E+00 -1.10E+00 3.73E-01 -8.71E-02 1.32E-02 -1.16E-03 4.38E-05 S10 -4.11E-03 6.35E-04 -1.58E-05 -1.37E-05 2.71E-06 -2.25E-07 7.32E-09 S11 -1.31E-03 1.73E-04 -1.66E-05 1.12E-06 -5.12E-08 1.41E-09 -1.78E-11 S12 4.56E-04 -6.39E-05 6.49E-06 -4.65E-07 2.22E-08 -6.33E-10 8.16E-12

[0154] Table 10-2

[0155] 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 passing through the lens. Figure 10B The chromatic aberration curve of the optical imaging lens of Example 5 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figure 10C 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 10D The distortion curve of the optical imaging lens of Example 5 is shown, which represents the distortion value corresponding to different field angles. 10A to 10D It can be seen that the optical imaging lens provided in Example 5 can achieve good imaging quality.

[0156] Example 6

[0157] The following reference Figures 11 to 12D An optical imaging lens according to Example 6 of the present application is described. Figure 11 A schematic structural diagram of an optical imaging lens according to Example 6 of the present application is shown.

[0158] like Figure 11 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0159] The first lens E1 has positive focal power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has negative focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex and its image-side surface S6 being convex. The fourth lens E4 has negative focal power, with its object-side surface S7 being concave and its image-side surface S8 being convex. The fifth lens E5 has positive focal power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has negative focal power, with its object-side surface S11 being concave 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.

[0160] In this example, the total effective focal length f of the optical imaging lens is 5.07 mm, half of the maximum field of view angle Semi-FOV of the optical imaging lens is 41.23°, the total length TTL of the optical imaging lens is 6.04 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens ImgH is 4.84 mm, and the aperture value FNO of the optical imaging lens is 1.88.

[0161] Table 11 shows the basic parameters of the optical imaging lens of Example 6, where the units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Tables 12-1 and 12-2 show the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 6, where the surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0162]

[0163]

[0164] Table 11

[0165] Face number A4 A6 A8 A10 A12 A14 A16 S1 -1.55E-02 1.80E-01 -1.14E+00 4.57E+00 -1.22E+01 2.24E+01 -2.89E+01 S2 -7.69E-02 2.14E-03 2.30E-01 -7.26E-01 1.34E+00 -1.51E+00 9.17E-01 S3 -1.13E-01 1.55E-01 -7.86E-01 3.62E+00 -1.03E+01 1.93E+01 -2.47E+01 S4 -3.65E-02 -1.83E-02 3.25E-01 -1.18E+00 2.72E+00 -3.45E+00 7.40E-01 S5 -4.98E-02 1.70E-01 -1.31E+00 6.03E+00 -1.85E+01 3.93E+01 -5.93E+01 S6 -4.16E-02 -1.29E-01 9.23E-01 -4.21E+00 1.22E+01 -2.41E+01 3.33E+01 S7 -1.27E-01 2.53E-01 -1.37E+00 4.82E+00 -1.15E+01 1.90E+01 -2.20E+01 S8 -1.19E-01 9.95E-02 -2.22E-01 2.85E-01 4.42E-02 -8.78E-01 1.73E+00 S9 -9.25E-02 4.03E-01 -1.85E+00 5.48E+00 -1.10E+01 1.54E+01 -1.55E+01 S10 2.18E-01 -2.21E-01 1.27E-01 5.80E-02 -1.94E-01 2.07E-01 -1.36E-01 S11 8.95E-02 -2.68E-01 3.28E-01 -2.53E-01 1.34E-01 -5.07E-02 1.38E-02 S12 -2.15E-01 1.30E-01 -7.12E-02 3.25E-02 -1.21E-02 3.57E-03 -8.23E-04

[0166] Table 12-1

[0167] Face number A18 A20 A22 A24 A26 A28 A30 S1 2.64E+01 -1.70E+01 7.52E+00 -2.18E+00 3.72E-01 -2.84E-02 0.00E+00 S2 -8.24E-02 -2.97E-01 2.19E-01 -6.73E-02 8.03E-03 0.00E+00 0.00E+00 S3 2.15E+01 -1.26E+01 4.79E+00 -1.06E+00 1.03E-01 0.00E+00 0.00E+00 S4 5.03E+00 -9.00E+00 7.83E+00 -3.91E+00 1.07E+00 -1.27E-01 0.00E+00 S5 6.41E+01 -4.92E+01 2.61E+01 -9.11E+00 1.86E+00 -1.69E-01 0.00E+00 S6 -3.24E+01 2.22E+01 -1.05E+01 3.24E+00 -5.88E-01 4.76E-02 0.00E+00 S7 1.80E+01 -1.03E+01 4.00E+00 -1.00E+00 1.47E-01 -9.45E-03 0.00E+00 S8 -1.93E+00 1.41E+00 -6.99E-01 2.33E-01 -5.02E-02 6.28E-03 -3.47E-04 S9 1.13E+01 -5.92E+00 2.23E+00 -5.83E-01 1.01E-01 -1.04E-02 4.78E-04 S10 6.06E-02 -1.89E-02 4.13E-03 -6.19E-04 6.09E-05 -3.53E-06 9.18E-08 S11 -2.76E-03 4.04E-04 -4.29E-05 3.21E-06 -1.61E-07 4.85E-09 -6.64E-11 S12 1.45E-04 -1.93E-05 1.89E-06 -1.32E-07 6.21E-09 -1.75E-10 2.24E-12

[0168] Table 12-2

[0169] 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 passing through the lens. Figure 12B The chromatic aberration curve of the optical imaging lens of Example 6 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figure 12C 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 12D The distortion curve of the optical imaging lens of Example 6 is shown, which represents the distortion value corresponding to different field angles. 12A to 12D It can be seen that the optical imaging lens provided in Example 6 can achieve good imaging quality.

[0170] Example 7

[0171] The following reference Figures 13 to 14D An optical imaging lens according to Example 7 of the present application is described. Figure 13 A schematic structural diagram of an optical imaging lens according to Example 7 of the present application is shown.

[0172] like Figure 13 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0173] The first lens E1 has positive focal power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has negative focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has negative focal power, with its object-side surface S7 being convex and its image-side surface S8 being concave. The fifth lens E5 has positive focal power, with its object-side surface S9 being convex and its image-side surface S10 being convex. The sixth lens E6 has negative focal power, with its object-side surface S11 being concave 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 an object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0174] In this example, the total effective focal length f of the optical imaging lens is 5.39 mm, half of the maximum field of view angle Semi-FOV of the optical imaging lens is 41.35°, the total length TTL of the optical imaging lens is 6.33 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens ImgH is 4.84 mm, and the aperture value FNO of the optical imaging lens is 1.88.

[0175] Table 13 shows the basic parameters of the optical imaging lens of Example 7, where the units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Tables 14-1 and 14-2 show the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 7, where the surface shapes of the various aspherical surfaces can be defined by formula (1) given in Example 1 above.

[0176]

[0177]

[0178] Table 13

[0179] Face number A4 A6 A8 A10 A12 A14 A16 S1 -2.34E-02 2.13E-01 -1.13E+00 3.85E+00 -8.75E+00 1.38E+01 -1.53E+01 S2 -6.90E-02 1.31E-02 7.94E-02 -1.79E-01 1.03E-01 2.98E-01 -7.66E-01 S3 -9.64E-02 1.05E-01 -4.37E-01 1.68E+00 -4.02E+00 6.39E+00 -6.94E+00 S4 -2.22E-02 -1.05E-01 9.98E-01 -4.79E+00 1.53E+01 -3.36E+01 5.19E+01 S5 -5.84E-02 4.12E-01 -2.76E+00 1.18E+01 -3.48E+01 7.18E+01 -1.06E+02 S6 -7.25E-02 2.33E-02 6.05E-01 -3.62E+00 1.09E+01 -2.09E+01 2.70E+01 S7 -1.67E-01 3.68E-02 4.39E-01 -1.81E+00 4.21E+00 -6.67E+00 7.55E+00 S8 -1.41E-01 -1.15E-01 9.19E-01 -2.84E+00 5.59E+00 -7.58E+00 7.33E+00 S9 -1.92E-02 -1.83E-02 4.56E-02 -1.21E-01 2.06E-01 -2.37E-01 1.98E-01 S10 2.26E-01 -2.35E-01 1.66E-01 -3.05E-03 -1.51E-01 1.91E-01 -1.33E-01 S11 7.62E-02 -2.51E-01 3.27E-01 -2.76E-01 1.61E-01 -6.62E-02 1.93E-02 S12 -2.19E-01 1.54E-01 -1.05E-01 6.03E-02 -2.75E-02 9.58E-03 -2.50E-03

[0180] Table 14-1

[0181] Face number A18 A20 A22 A24 A26 A28 A30 S1 1.21E+01 -6.74E+00 2.59E+00 -6.50E-01 9.65E-02 -6.40E-03 0.00E+00 S2 8.55E-01 -5.50E-01 2.10E-01 -4.46E-02 4.05E-03 0.00E+00 0.00E+00 S3 5.17E+00 -2.60E+00 8.43E-01 -1.59E-01 1.32E-02 0.00E+00 0.00E+00 S4 -5.68E+01 4.38E+01 -2.32E+01 8.05E+00 -1.64E+00 1.48E-01 0.00E+00 S5 1.12E+02 -8.48E+01 4.47E+01 -1.57E+01 3.27E+00 -3.09E-01 0.00E+00 S6 -2.41E+01 1.50E+01 -6.32E+00 1.73E+00 -2.78E-01 1.99E-02 0.00E+00 S7 -6.18E+00 3.62E+00 -1.47E+00 3.88E-01 -5.99E-02 4.07E-03 0.00E+00 S8 -5.13E+00 2.60E+00 -9.38E-01 2.35E-01 -3.88E-02 3.79E-03 -1.65E-04 S9 -1.24E-01 5.80E-02 -1.97E-02 4.67E-03 -7.29E-04 6.68E-05 -2.72E-06 S10 5.93E-02 -1.80E-02 3.78E-03 -5.39E-04 5.01E-05 -2.74E-06 6.68E-08 S11 -4.06E-03 6.16E-04 -6.70E-05 5.10E-06 -2.58E-07 7.79E-09 -1.06E-10 S12 4.86E-04 -6.93E-05 7.14E-06 -5.16E-07 2.48E-08 -7.08E-10 9.13E-12

[0182] Table 14-2

[0183] 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 passing through the lens. Figure 14B The chromatic aberration curve of the optical imaging lens of Example 7 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figure 14C 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 14D The distortion curve of the optical imaging lens of Example 7 is shown, which represents the distortion value corresponding to different field angles. 14A to 14D It can be seen that the optical imaging lens provided in Example 7 can achieve good imaging quality.

[0184] Example 8

[0185] The following reference Figures 15 to 16D An optical imaging lens according to Example 8 of the present application is described. Figure 15 A schematic structural diagram of an optical imaging lens according to Example 8 of the present application is shown.

[0186] like Figure 15 As shown, the optical imaging lens includes, from the object side to the image side, an aperture STO, a first lens E1, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a filter E7 and an imaging surface S15.

[0187] The first lens E1 has positive focal power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens E2 has negative focal power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive focal power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens E4 has negative focal power, with its object-side surface S7 being convex and its image-side surface S8 being concave. The fifth lens E5 has positive focal power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has negative focal power, with its object-side surface S11 being concave 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 an object passes through each surface S1 to S14 in sequence and is ultimately imaged on the imaging surface S15.

[0188] In this example, the total effective focal length f of the optical imaging lens is 5.27 mm, half of the maximum field of view angle Semi-FOV of the optical imaging lens is 41.91°, the total length TTL of the optical imaging lens is 6.24 mm, half of the diagonal length of the effective pixel area on the imaging surface S15 of the optical imaging lens ImgH is 4.84 mm, and the aperture value FNO of the optical imaging lens is 1.88.

[0189] Table 15 shows the basic parameters of the optical imaging lens of Example 8, where the units of curvature radius, thickness / distance, and focal length are all in millimeters (mm). Tables 16-1 and 16-2 show the high-order coefficients of the various aspherical mirror surfaces that can be used in Example 8, where the surface shape of each aspherical surface can be defined by formula (1) given in Example 1 above.

[0190]

[0191]

[0192] Table 15

[0193] Face number A4 A6 A8 A10 A12 A14 A16 S1 -2.43E-02 2.33E-01 -1.28E+00 4.50E+00 -1.05E+01 1.70E+01 -1.93E+01 S2 -7.19E-02 2.21E-02 1.73E-02 1.34E-01 -8.46E-01 2.15E+00 -3.18E+00 S3 -9.77E-02 1.01E-01 -4.19E-01 1.64E+00 -3.97E+00 6.33E+00 -6.92E+00 S4 -2.51E-02 -5.80E-02 6.82E-01 -3.61E+00 1.28E+01 -3.11E+01 5.31E+01 S5 -6.44E-02 4.68E-01 -3.26E+00 1.46E+01 -4.44E+01 9.45E+01 -1.43E+02 S6 -6.65E-02 -4.90E-02 9.97E-01 -4.95E+00 1.40E+01 -2.59E+01 3.29E+01 S7 -1.66E-01 2.61E-02 5.53E-01 -2.44E+00 6.17E+00 -1.05E+01 1.26E+01 S8 -1.41E-01 -1.17E-01 1.01E+00 -3.33E+00 6.90E+00 -9.74E+00 9.71E+00 S9 -1.69E-02 -2.58E-02 9.54E-02 -2.79E-01 4.82E-01 -5.37E-01 4.17E-01 S10 2.14E-01 -2.00E-01 1.16E-01 2.14E-02 -1.30E-01 1.51E-01 -1.03E-01 S11 7.45E-02 -2.20E-01 2.47E-01 -1.78E-01 9.03E-02 -3.29E-02 8.62E-03 S12 -2.09E-01 1.38E-01 -9.08E-02 5.13E-02 -2.28E-02 7.62E-03 -1.89E-03

[0194] Table 16-1

[0195] Face number A18 A20 A22 A24 A26 A28 A30 S1 1.54E+01 -8.65E+00 3.33E+00 -8.38E-01 1.24E-01 -8.10E-03 0.00E+00 S2 2.97E+00 -1.78E+00 6.63E-01 -1.40E-01 1.29E-02 0.00E+00 0.00E+00 S3 5.19E+00 -2.63E+00 8.59E-01 -1.63E-01 1.36E-02 0.00E+00 0.00E+00 S4 -6.40E+01 5.43E+01 -3.15E+01 1.19E+01 -2.65E+00 2.61E-01 0.00E+00 S5 1.56E+02 -1.21E+02 6.57E+01 -2.36E+01 5.05E+00 -4.88E-01 0.00E+00 S6 -2.92E+01 1.81E+01 -7.68E+00 2.12E+00 -3.45E-01 2.50E-02 0.00E+00 S7 -1.06E+01 6.35E+00 -2.60E+00 6.90E-01 -1.07E-01 7.34E-03 0.00E+00 S8 -6.95E+00 3.58E+00 -1.31E+00 3.34E-01 -5.57E-02 5.49E-03 -2.42E-04 S9 -2.36E-01 9.76E-02 -2.94E-02 6.27E-03 -8.91E-04 7.54E-05 -2.87E-06 S10 4.59E-02 -1.40E-02 2.96E-03 -4.25E-04 3.98E-05 -2.18E-06 5.36E-08 S11 -1.64E-03 2.26E-04 -2.24E-05 1.56E-06 -7.21E-08 2.00E-09 -2.50E-11 S12 3.46E-04 -4.63E-05 4.46E-06 -3.01E-07 1.35E-08 -3.59E-10 4.30E-12

[0196] Table 16-2

[0197] Figure 16A The axial chromatic aberration curve of the optical imaging lens of Example 8 is shown, which indicates the deviation of the focal point of light of different wavelengths passing through the lens. Figure 16B The chromatic aberration curve of the optical imaging lens of Example 8 is shown, which represents the deviation of different image heights on the imaging surface after the light passes through the lens. Figure 16C The astigmatism curve of the optical imaging lens of Example 8 is shown, which represents the meridional field curvature and the sagittal field curvature. Figure 16D The distortion curve of the optical imaging lens of Example 8 is shown, which represents the distortion value corresponding to different field angles. 16A to 16D It can be seen that the optical imaging lens provided in Example 8 can achieve good imaging quality.

[0198] In summary, Examples 1 to 8 respectively satisfy the relationships shown in Table 17.

[0199] Conditional formula / Example 1 2 3 4 5 6 7 8 (f+f1) / f5 5.42 4.34 4.75 3.91 4.19 4.12 4.74 4.66 f×tan(Semi-FOV)(mm) 4.47 4.35 4.70 4.41 4.43 4.45 4.74 4.73 CT6 / T56 1.88 3.78 2.00 1.77 1.87 1.84 1.94 1.76 f5 / f 0.43 0.49 0.44 0.50 0.47 0.50 0.44 0.45 T45 / T56 1.49 2.61 1.77 2.21 1.52 1.43 1.70 1.55 (CT5+T56) / BFL 0.57 0.42 0.51 0.60 0.59 0.54 0.50 0.54 |R10| / f5 0.54 0.55 0.54 0.48 0.52 0.48 0.55 0.54 <![CDATA[(R3-R4)×CT2(mm 2 )]]> -0.12 0.23 0.22 0.36 0.48 0.30 0.18 0.16 |(SAG61+SAG62) / SAG51| 3.18 0.30 3.11 2.63 2.98 2.53 2.87 2.77 ET6 / ET5 0.98 1.51 1.02 0.80 0.83 0.76 1.09 1.04 f45 / f1 0.36 0.46 0.43 0.51 0.52 0.48 0.43 0.43 EPD / CT1 3.59 3.68 3.60 3.55 3.38 3.56 3.54 3.56 |(R11+R12) / (R11-R12)| 0.32 0.73 0.24 0.30 0.32 0.35 0.31 0.32 DT61 / DT62 0.92 0.92 0.92 0.94 0.92 0.91 0.93 0.94 |(ET4-ET3) / ET4| 0.46 0.09 0.30 0.40 0.20 0.25 0.29 0.26 (CT4+CT5+CT6) / ∑CT 0.51 0.51 0.48 0.49 0.49 0.46 0.48 0.49 TD / TTL 0.73 0.69 0.71 0.75 0.74 0.73 0.70 0.71

[0200] Table 17

[0201] 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.

[0202] 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: The optical axis includes, in order from the object side to the image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens having optical power. The first lens has positive refractive power, its object side surface is convex, and its image side surface is concave; The object side surface of the second lens is convex, and the image side surface is concave; The object side surface of the third lens is a convex surface; The fifth lens has positive refractive power and its image side surface is convex; The sixth lens has negative optical power, and its object-side surface and image-side surface are concave; The number of lenses having optical power in the optical imaging lens is six; The total effective focal length f of the optical imaging lens and half of the maximum field of view (Semi-FOV) of the optical imaging lens satisfy the following relationship: 4.35 mm ≤ f × ​​tan (Semi-FOV) ≤ 4.74 mm; The center thickness CT6 of the sixth lens and the air gap T56 between the fifth lens and the sixth lens on the optical axis satisfy the following conditions: 1.76≤CT6 / T56≤3.78; as well as The effective focal length f1 of the first lens and the effective focal length f5 of the fifth lens satisfy the following: 3.91≤(f+f1) / f5≤5.

42.

2. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies: 0.43≤f5 / f≤0.

50.

3. The optical imaging lens according to claim 1, wherein: An air gap T45 between the fourth lens and the fifth lens on the optical axis satisfies the following: 1.43≤T45 / T56≤2.

61.

4. The optical imaging lens according to claim 1, wherein: The center thickness CT5 of the fifth lens and the distance BFL from the image-side surface of the sixth lens to the imaging plane of the optical imaging lens on the optical axis satisfy the following: 0.42≤(CT5+T56) / BFL≤0.

60.

5. The optical imaging lens according to claim 1, wherein: A curvature radius R10 of the image-side surface of the fifth lens satisfies: 0.48≤|R10| / f5≤0.

55.

6. The optical imaging lens according to claim 1, wherein: The curvature radius R3 of the object side surface of the second lens, the curvature radius R4 of the image side surface of the second lens, and the center thickness CT2 of the second lens satisfy: -0.12 mm 2 ≤(R3-R4)×CT2≤0.48mm 2 .

7. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies the following conditions: 0.30≤|(SAG61+SAG62) / SAG51|≤3.18, wherein: SAG61 is the distance from the intersection of the object side surface of the sixth lens and the optical axis to the vertex of the effective radius of the object side surface of the sixth lens on the optical axis, 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, and SAG51 is the distance from the intersection of the object side surface of the fifth lens and the optical axis to the vertex of the effective radius of the object side surface of the fifth lens on the optical axis.

8. The optical imaging lens according to claim 1, wherein: An edge thickness ET5 of the fifth lens at the maximum effective radius and an edge thickness ET6 of the sixth lens at the maximum effective radius satisfy the following: 0.76≤ET6 / ET5≤1.

51.

9. The optical imaging lens according to claim 1, wherein: A combined focal length f45 of the fourth lens and the fifth lens satisfies: 0.36≤f45 / f1≤0.

52.

10. The optical imaging lens according to claim 1, wherein: An entrance pupil diameter EPD of the optical imaging lens and a center thickness CT1 of the first lens satisfy the following: 3.38≤EPD / CT1≤3.

68.

11. The optical imaging lens according to claim 1, wherein: A curvature radius R11 of the object-side surface of the sixth lens and a curvature radius R12 of the image-side surface of the sixth lens satisfy: 0.24≤|(R11+R12) / (R11-R12)|≤0.

73.

12. The optical imaging lens according to claim 1, wherein: An effective radius DT61 of the object-side surface of the sixth lens and an effective radius DT62 of the image-side surface of the sixth lens satisfy the following: 0.91≤DT61 / DT62≤0.

94.

13. The optical imaging lens according to claim 1, wherein: The edge thickness ET3 of the third lens at the maximum effective radius and the edge thickness ET4 of the fourth lens at the maximum effective radius satisfy the following: 0.09≤|(ET4-ET3) / ET4|≤0.

46.

14. The optical imaging lens according to any one of claims 1 to 13, wherein: The center thickness CT4 of the fourth lens, the center thickness CT5 of the fifth lens, the center thickness CT6 of the sixth lens, and the sum ΣCT of the center thicknesses of the first to sixth lenses satisfy: 0.46≤(CT4+CT5+CT6) / ΣCT≤0.

51.

15. The optical imaging lens according to any one of claims 1 to 13, wherein: A distance TD from the object-side surface of the first lens to the image-side surface of the sixth lens on the optical axis and a distance TTL from the object-side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis satisfy the following conditions: 0.69≤TD / TTL≤0.

75.

16. An optical imaging lens, characterized in that: The optical axis includes, in order from the object side to the image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens having optical power. The first lens has positive refractive power, its object side surface is convex, and its image side surface is concave; The object side surface of the second lens is convex, and the image side surface is concave; The object side surface of the third lens is a convex surface; The fifth lens has positive refractive power and its image side surface is convex; The sixth lens has negative optical power, and its object-side surface and image-side surface are concave; The number of lenses having optical power in the optical imaging lens is six; The total effective focal length f of the optical imaging lens, the effective focal length f1 of the first lens, and the effective focal length f5 of the fifth lens satisfy the following conditions: 3.91≤(f+f1) / f5≤5.42; and The edge thickness ET3 of the third lens at the maximum effective radius and the edge thickness ET4 of the fourth lens at the maximum effective radius satisfy the following: 0.09≤|(ET4-ET3) / ET4|≤0.

46.

17. The optical imaging lens according to claim 16, wherein: The optical imaging lens satisfies: 0.43≤f5 / f≤0.

50.

18. The optical imaging lens according to claim 16, wherein: An air gap T45 between the fourth lens and the fifth lens on the optical axis and an air gap T56 between the fifth lens and the sixth lens on the optical axis satisfy the following: 1.43≤T45 / T56≤2.

61.

19. The optical imaging lens according to claim 16, wherein: The center thickness CT5 of the fifth lens, the air gap T56 between the fifth lens and the sixth lens on the optical axis, and the distance BFL from the image-side surface of the sixth lens to the imaging plane of the optical imaging lens on the optical axis satisfy the following conditions: 0.42≤(CT5+T56) / BFL≤0.

60.

20. The optical imaging lens according to claim 16, wherein: A curvature radius R10 of the image-side surface of the fifth lens satisfies: 0.48≤|R10| / f5≤0.

55.

21. The optical imaging lens according to claim 16, wherein: The curvature radius R3 of the object side surface of the second lens, the curvature radius R4 of the image side surface of the second lens, and the center thickness CT2 of the second lens satisfy: -0.12 mm 2 ≤(R3-R4)×CT2≤0.48mm 2 .

22. The optical imaging lens according to claim 16, wherein: The optical imaging lens satisfies the following conditions: 0.30≤|(SAG61+SAG62) / SAG51|≤3.18, wherein: SAG61 is the distance from the intersection of the object side surface of the sixth lens and the optical axis to the vertex of the effective radius of the object side surface of the sixth lens on the optical axis, 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, and SAG51 is the distance from the intersection of the object side surface of the fifth lens and the optical axis to the vertex of the effective radius of the object side surface of the fifth lens on the optical axis.

23. The optical imaging lens according to claim 16, wherein: An edge thickness ET5 of the fifth lens at the maximum effective radius and an edge thickness ET6 of the sixth lens at the maximum effective radius satisfy the following: 0.76≤ET6 / ET5≤1.

51.

24. The optical imaging lens according to claim 16, wherein: A combined focal length f45 of the fourth lens and the fifth lens satisfies: 0.36≤f45 / f1≤0.

52.

25. The optical imaging lens according to claim 16, wherein: An entrance pupil diameter EPD of the optical imaging lens and a center thickness CT1 of the first lens satisfy the following: 3.38≤EPD / CT1≤3.

68.

26. The optical imaging lens according to claim 16, wherein: A curvature radius R11 of the object-side surface of the sixth lens and a curvature radius R12 of the image-side surface of the sixth lens satisfy: 0.24≤|(R11+R12) / (R11-R12)|≤0.

73.

27. The optical imaging lens according to claim 16, wherein: An effective radius DT61 of the object-side surface of the sixth lens and an effective radius DT62 of the image-side surface of the sixth lens satisfy the following: 0.91≤DT61 / DT62≤0.

94.

28. The optical imaging lens according to claim 16, wherein: Half of the maximum field of view (Semi-FOV) of the optical imaging lens satisfies the following: 4.35 mm ≤ f × ​​tan (Semi-FOV) ≤ 4.74 mm.

29. The optical imaging lens according to claim 16, wherein: A center thickness CT6 of the sixth lens and an air gap T56 between the fifth lens and the sixth lens on the optical axis satisfy the following: 1.76≤CT6 / T56≤3.

78.

30. The optical imaging lens according to any one of claims 16 to 29, wherein: The center thickness CT4 of the fourth lens, the center thickness CT5 of the fifth lens, the center thickness CT6 of the sixth lens, and the sum ΣCT of the center thicknesses of the first to sixth lenses satisfy: 0.46≤(CT4+CT5+CT6) / ΣCT≤0.

51.

31. The optical imaging lens according to any one of claims 16 to 29, wherein: A distance TD from the object-side surface of the first lens to the image-side surface of the sixth lens on the optical axis and a distance TTL from the object-side surface of the first lens to the imaging surface of the optical imaging lens on the optical axis satisfy the following conditions: 0.69≤TD / TTL≤0.75.

Images