CN107621683B - Optical imaging lens - Google Patents

Optical imaging lens Download PDF

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CN107621683B
CN107621683B CN201711012647.6A CN201711012647A CN107621683B CN 107621683 B CN107621683 B CN 107621683B CN 201711012647 A CN201711012647 A CN 201711012647A CN 107621683 B CN107621683 B CN 107621683B
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lens
optical imaging
optical
imaging lens
focal length
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CN107621683A (en
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徐标
张凯元
闻人建科
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Zhejiang Sunny Optics Co Ltd
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Zhejiang Sunny Optics Co Ltd
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Priority to PCT/CN2018/095835 priority patent/WO2019080554A1/en
Priority to US16/227,008 priority patent/US10942334B2/en
Priority to US17/572,393 priority patent/USRE49789E1/en
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Abstract

The application discloses optical imaging lens, this optical imaging lens includes in proper order along the optical axis from the thing side to the image side: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens has positive focal power, and the object side surface of the first lens is a convex surface; the second lens has negative focal power; the third lens has positive focal power; the fourth lens and the fifth lens have positive focal power or negative focal power; the sixth lens has positive optical power; the seventh lens has negative focal power, and both the object side surface and the image side surface of the seventh lens are concave surfaces; and the combined focal length f12 of the first lens and the second lens and the combined focal length f34 of the third lens and the fourth lens meet the requirement of |f12/f34| less than or equal to 0.3.

Description

Optical imaging lens
Technical Field
The present invention relates to an optical imaging lens, and more particularly, to an optical imaging lens including seven lenses.
Background
With the improvement of the performance and the reduction of the size of common photosensitive elements such as a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS), the pixel number and the pixel size of the photosensitive element are increased, so that higher requirements are put on the high imaging quality and the miniaturization of the matched optical imaging lens.
The reduction in the size of the picture element means that the light flux of the lens will be smaller in the same exposure time. However, under dim conditions (e.g., rainy days, dusk, etc.), the lens needs to have a large amount of light to ensure imaging quality. The conventional lenses are generally configured to have an f-number Fno (total effective focal length of the lens/entrance pupil diameter of the lens) of 2.0 or more. Although the lens can meet the miniaturization requirement, the imaging quality of the lens cannot be guaranteed under the condition of insufficient light, and therefore the lens with the f-number FNo of 2.0 or more cannot meet the higher-order imaging requirement.
Disclosure of Invention
The present application provides an optical imaging lens, e.g., a large aperture imaging lens, applicable to portable electronic products that may at least address or partially address at least one of the above-mentioned shortcomings of the prior art.
In one aspect, the present application provides an optical imaging lens, including, in order from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens may have positive optical power, and an object side surface thereof may be convex; the second lens may have negative optical power; the third lens may have positive optical power; the fourth lens and the fifth lens have positive focal power or negative focal power; the sixth lens may have positive optical power; the seventh lens may have negative optical power, and both the object-side surface and the image-side surface thereof may be concave; and the combined focal length f12 of the first lens and the second lens and the combined focal length f34 of the third lens and the fourth lens can meet the requirement that |f12/f34| is less than or equal to 0.3.
In one embodiment, the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens may satisfy f/EPD.ltoreq.1.80.
In one embodiment, the total effective focal length f of the optical imaging lens and the effective focal length f7 of the seventh lens may satisfy-2.5 < f/f7 < -1.5.
In one embodiment, the effective focal length f2 of the second lens and the effective focal length f7 of the seventh lens may satisfy 4.5 < f2/f7 < 11.0.
In one embodiment, the effective focal length f6 of the sixth lens and the effective focal length f7 of the seventh lens may satisfy-1.5 < f6/f7 < -1.0.
In one embodiment, the effective focal length f7 of the seventh lens and the radius of curvature R14 of the image-side surface of the seventh lens may satisfy-1.5 < f7/R14 < -1.0.
In one embodiment, the effective focal length f1 of the first lens and the radius of curvature R1 of the object-side surface of the first lens may satisfy 2.0 < f1/R1 < 3.0.
In one embodiment, the center thickness CT1 of the first lens on the optical axis and the effective focal length f2 of the second lens can satisfy-0.2 < CT1/f2 < 0.
In one embodiment, the effective focal length f6 of the sixth lens and the effective focal length f3 of the third lens may satisfy 0 < f6/f3 < 0.5.
In one embodiment, the radius of curvature R1 of the object-side surface of the first lens and the radius of curvature R4 of the image-side surface of the second lens may satisfy 0 < R1/R4 < 1.
In one embodiment, the radius of curvature R12 of the image-side surface of the sixth lens and the radius of curvature R14 of the image-side surface of the seventh lens may satisfy-1.5 < R12/R14 < -0.5.
In one embodiment, the center thickness CT6 of the sixth lens on the optical axis may satisfy 0.3mm < CT6 < 0.8mm.
In one embodiment, the total optical length TTL of the optical imaging lens and half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens may satisfy TTL/ImgH less than or equal to 1.50.
In another aspect, the present application provides an optical imaging lens, including, in order from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens element may have positive refractive power, wherein an object-side surface thereof may be convex, and an image-side surface thereof may be concave; the second lens may have negative optical power; the third lens may have positive optical power; the fourth lens and the fifth lens have positive focal power or negative focal power; the sixth lens may have positive optical power; the seventh lens may have negative optical power, and both the object-side surface and the image-side surface thereof may be concave; and the total optical length TTL of the optical imaging lens and half of the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens can meet the requirement that TTL/ImgH is less than or equal to 1.50.
The optical imaging lens has at least one beneficial effect of ultrathin, miniaturized, large-aperture, high imaging quality and the like by reasonably distributing the focal power, the surface thickness of each lens, the axial spacing between each lens and the like of a plurality of (e.g. seven) lenses.
Drawings
Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 shows a schematic configuration diagram of an optical imaging lens according to embodiment 1 of the present application;
fig. 2A to 2D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 1;
fig. 3 shows a schematic structural view of an optical imaging lens according to embodiment 2 of the present application;
fig. 4A to 4D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 2;
fig. 5 shows a schematic structural view of an optical imaging lens according to embodiment 3 of the present application;
fig. 6A to 6D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 3;
Fig. 7 shows a schematic structural diagram of an optical imaging lens according to embodiment 4 of the present application;
fig. 8A to 8D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 4;
fig. 9 shows a schematic structural view of an optical imaging lens according to embodiment 5 of the present application;
fig. 10A to 10D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 5;
fig. 11 shows a schematic structural view of an optical imaging lens according to embodiment 6 of the present application;
fig. 12A to 12D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 6;
fig. 13 shows a schematic structural view of an optical imaging lens according to embodiment 7 of the present application;
fig. 14A to 14D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 7;
fig. 15 shows a schematic structural view of an optical imaging lens according to embodiment 8 of the present application;
fig. 16A to 16D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 8;
Fig. 17 shows a schematic structural diagram of an optical imaging lens according to embodiment 9 of the present application;
fig. 18A to 18D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 9;
fig. 19 shows a schematic structural view of an optical imaging lens according to embodiment 10 of the present application;
fig. 20A to 20D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 10;
fig. 21 shows a schematic structural view of an optical imaging lens according to embodiment 11 of the present application;
fig. 22A to 22D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 11;
fig. 23 shows a schematic structural view of an optical imaging lens according to embodiment 12 of the present application;
fig. 24A to 24D show an on-axis chromatic aberration curve, an astigmatism curve, a distortion curve, and a magnification chromatic aberration curve, respectively, of the optical imaging lens of embodiment 12.
Detailed Description
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 description are merely illustrative of exemplary embodiments of the application and are not intended to limit the scope of the application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.
It should be noted that in the present specification, the expressions of first, second, third, etc. are only used to distinguish one feature from another feature, and do not represent any limitation on the feature. Accordingly, a first lens discussed below may also be referred to as a second lens or a third lens without departing from the teachings of the present application.
In the drawings, the thickness, size, and shape of the lenses have been slightly exaggerated for convenience of explanation. In particular, the spherical or aspherical shape shown in the drawings is shown by way of example. That is, the shape of the spherical or aspherical surface is not limited to the shape of the spherical or aspherical surface shown in the drawings. The figures are merely examples and are not drawn to scale.
Herein, the paraxial region refers to a region near the optical axis. If the lens surface is convex and the convex position is not defined, then the lens surface is convex at least in the paraxial region; if the lens surface is concave and the concave position is not defined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the object is referred to as the object side surface, and the surface of each lens closest to the imaging surface is referred to as the image side surface.
It will be further understood that the terms "comprises," "comprising," "includes," "including," "having," "containing," and/or "including," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Furthermore, when a statement such as "at least one of the following" appears after a list of features that are listed, the entire listed feature is modified instead of modifying a separate element in the list. Furthermore, when describing embodiments of the present application, use of "may" means "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The features, principles, and other aspects of the present application are described in detail below.
The optical imaging lens according to the exemplary embodiment of the present application may include, for example, seven lenses having optical power, i.e., a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The seven lenses are arranged in sequence from the object side to the image side along the optical axis.
In an exemplary embodiment, the first lens may have positive optical power, and its object-side surface may be convex; the second lens may have negative optical power; the third lens may have positive optical power; the fourth lens has positive focal power or negative focal power; the fifth lens has positive optical power or negative optical power; the sixth lens may have positive optical power; and the seventh lens element may have negative optical power, and the object-side surface thereof may be concave, and the image-side surface thereof may be concave.
In an exemplary embodiment, the image side of the first lens may be concave.
In an exemplary embodiment, the object-side surface of the second lens may be convex and the image-side surface may be concave.
In an exemplary embodiment, the object side surface of the third lens may be convex.
In an exemplary embodiment, the object-side surface of the sixth lens may be convex, and the image-side surface may be convex.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition that f/EPD is equal to or less than 1.80, where f is the total effective focal length of the optical imaging lens and EPD is the entrance pupil diameter of the optical imaging lens. More specifically, f and EPD may further satisfy 1.58.ltoreq.f/EPD.ltoreq.1.76. The smaller the f-number Fno of the optical imaging lens (i.e., the total effective focal length f of the lens/the entrance pupil diameter EPD of the lens), the larger the clear aperture of the lens, the more the amount of light entering in the same unit time. The reduction of f-number FNO can effectively improve the brightness of an image plane, so that the lens can better meet shooting requirements when light rays are insufficient, such as overcast days, dusk and the like, and has the advantage of large aperture. The lens is configured to meet the condition that f/EPD is less than or equal to 1.60, so that the lens has the advantage of a larger aperture, the light flux of the system can be increased, and the illumination of an imaging surface is enhanced; at the same time, aberrations of the fringe field of view can also be reduced.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression |f12/f34|+.0.3, where f12 is a combined focal length of the first lens and the second lens, and f34 is a combined focal length of the third lens and the fourth lens. More specifically, f12 and f34 may further satisfy 0.06.ltoreq.f12/f34.ltoreq.0.28. And f12 and f34 are reasonably distributed, so that the optical performance of the imaging system is improved.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 4.5 < f2/f7 < 11.0, where f2 is an effective focal length of the second lens and f7 is an effective focal length of the seventh lens. More specifically, f2 and f7 may further satisfy 4.94.ltoreq.f2/f7.ltoreq.10.02. The effective focal lengths of the second lens and the seventh lens are reasonably distributed, so that the deflection angle of light rays can be reduced, and the imaging quality of the optical system is improved.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0 < R1/R4 < 1, where R1 is a radius of curvature of the object side surface of the first lens element, and R4 is a radius of curvature of the image side surface of the second lens element. More specifically, R1 and R4 may further satisfy 0.35 < R1/R4 < 0.65, for example, 0.40.ltoreq.R1/R4.ltoreq.0.63. The ratio range of the curvature radius R1 of the object side surface of the first lens to the curvature radius R4 of the image side surface of the second lens is reasonably controlled, and the deflection of a light path is better realized by the system.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition of-1.5 < R12/R14 < -0.5, wherein R12 is the radius of curvature of the image side of the sixth lens element and R14 is the radius of curvature of the image side of the seventh lens element. More specifically, R12 and R14 may further satisfy-1.1 < R12/R14 < -0.8, for example, -1.08.ltoreq.R12/R14.ltoreq.0.88. The ratio of R12 to R14 is reasonably controlled, so that the aberration of the system can be balanced easily, and the imaging quality of the imaging system is improved.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition that TTL/ImgH is less than or equal to 1.50, where TTL is an optical total length of the optical imaging lens (i.e., a distance on an optical axis from a center of an object side surface of the first lens to an imaging surface of the optical imaging lens), and ImgH is a half of a diagonal length of an effective pixel area on the imaging surface. More specifically, TTL and ImgH can further satisfy 1.40.ltoreq.TTL/ImgH.ltoreq.1.48. The conditional TTL/ImgH is less than or equal to 1.50, the size of the system can be effectively compressed, and the ultra-thin characteristic of the imaging lens is further ensured.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition-2.5 < f/f7 < -1.5, where f is the total effective focal length of the optical imaging lens and f7 is the effective focal length of the seventh lens. More specifically, f and f7 may further satisfy-2.1 < f/f7 < -1.8, for example, -2.07. Ltoreq.f/f 7. Ltoreq.1.98. By controlling the negative power of the seventh lens within a reasonable range, positive astigmatism within a reasonable range that can cancel each other with negative astigmatism generated by the first six lenses (i.e., each lens between the object side and the seventh lens) can be obtained, thereby enabling the imaging system to obtain good imaging quality.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0.3mm < CT6 < 0.8mm, where CT6 is the center thickness of the sixth lens on the optical axis. More specifically, CT6 may further satisfy 0.4mm < CT6 < 0.7mm, for example, 0.46 mm. Ltoreq.CT 6. Ltoreq.0.61 mm. By reasonably controlling the center thickness CT6 of the sixth lens, the optical element can be ensured to have good machinability, and meanwhile, the total optical length TTL of the lens can be ensured to be kept within a certain reasonable range.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 2.0 < f1/R1 < 3.0, where f1 is an effective focal length of the first lens, and R1 is a radius of curvature of an object side surface of the first lens. More specifically, f1 and R1 may further satisfy 2.1 < f1/R1 < 2.6, for example, 2.20.ltoreq.f1/R1.ltoreq.2.55. By reasonably controlling the ratio of the effective focal length f1 of the first lens to the curvature radius R1 of the object side surface of the first lens, the deflection angle of the edge view field at the first lens can be effectively controlled, and the sensitivity of the system can be effectively reduced.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition that-0.2 < CT1/f2 < 0, where CT1 is a center thickness of the first lens on the optical axis, and f2 is an effective focal length of the second lens. More specifically, CT1 and f2 may further satisfy-0.1 < CT1/f2 < 0, for example, -0.08. Ltoreq.CT 1/f 2. Ltoreq.0.04. By reasonably controlling the ratio of CT1 to f2, the processing characteristic of the first lens and the spherical aberration contribution rate of the second lens are guaranteed, and therefore the on-axis view field area of the imaging system has good imaging quality.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition that f6/f7 < -1.0 is less than-1.5, where f6 is an effective focal length of the sixth lens and f7 is an effective focal length of the seventh lens. More specifically, f6 and f7 may further satisfy-1.44.ltoreq.f6/f7.ltoreq.1.08. By reasonably controlling the ratio of the effective focal lengths of the sixth lens and the seventh lens, the residual spherical aberration obtained after the balance of the sixth lens and the seventh lens can be balanced with the spherical aberration generated by the front five lenses (namely, each lens between the object side and the sixth lens), so that the fine adjustment of the spherical aberration of the system is realized, and the effect of reducing the aberration of the field of view area on the axis is achieved.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the condition that f7/R14 < -1.0 is less than-1.5, where f7 is an effective focal length of the seventh lens and R14 is a radius of curvature of an image side surface of the seventh lens. More specifically, f7 and R14 may further satisfy-1.3 < f7/R14 < -1.1, for example, -1.28.ltoreq.f7/R14.ltoreq.1.14. By reasonably controlling the curvature radius of the image side surface of the seventh lens, the third-order coma aberration of the seventh lens is controlled within a reasonable range, so that the coma aberration generated by the first six lenses can be balanced, and the imaging system has good imaging quality.
In an exemplary embodiment, the optical imaging lens of the present application may satisfy the conditional expression 0 < f6/f3 < 0.5, where f6 is an effective focal length of the sixth lens and f3 is an effective focal length of the third lens. More specifically, f6 and f3 may further satisfy 0.1 < f6/f3 < 0.4, for example, 0.11.ltoreq.f6/f 3.ltoreq.0.38. By reasonably controlling the ratio of f6 to f3, the spherical aberration contribution of the sixth lens and the third lens can be reasonably controlled, so that the on-axis field of view area of the imaging system has good imaging quality.
In an exemplary embodiment, the optical imaging lens may further include at least one diaphragm to enhance the imaging quality of the lens. For example, a stop may be provided between the first lens and the second lens.
Optionally, the optical imaging lens may further include a filter for correcting color deviation and/or a protective glass for protecting a photosensitive element located on the imaging surface.
The optical imaging lens according to the above-described embodiments of the present application may employ a plurality of lenses, such as seven lenses described above. By reasonably distributing the focal power, the surface shape, the center thickness of each lens, the axial spacing between each lens and the like, the volume of the lens can be effectively reduced, the sensitivity of the lens can be reduced, and the processability of the lens can be improved, so that the optical imaging lens is more beneficial to production and processing and is applicable to portable electronic products. Meanwhile, the optical imaging lens configured as described above has advantageous effects such as ultra-thin, miniaturization, large aperture, high imaging quality, and the like.
In an embodiment of the present application, at least one of the mirrors of each lens is an aspherical mirror. The aspherical lens is characterized in that: the curvature varies continuously from the center of the lens to the periphery of the lens. Unlike a spherical lens having a constant curvature from the center of the lens to the periphery of the lens, an aspherical lens has a better radius of curvature characteristic, and has advantages of improving distortion aberration and improving astigmatic aberration. By adopting the aspherical lens, aberration occurring at the time of imaging can be eliminated as much as possible, thereby improving imaging quality.
However, it will be appreciated by those skilled in the art that the number of lenses making up the optical imaging lens may be varied to achieve the various results and advantages described in the specification without departing from the technical solutions claimed herein. For example, although seven lenses are described as an example in the embodiment, the optical imaging lens is not limited to include seven lenses. The optical imaging lens may also include other numbers of lenses, if desired.
Specific examples of the optical imaging lens applicable to the above-described embodiments are further described below with reference to the accompanying drawings.
Example 1
An optical imaging lens according to embodiment 1 of the present application is described below with reference to fig. 1 to 2D. Fig. 1 shows a schematic configuration diagram of an optical imaging lens according to embodiment 1 of the present application.
As shown in fig. 1, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes, along an optical axis from an object side to an image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is convex. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is concave, and an image-side surface S8 thereof is concave. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is convex and an image-side surface S10 thereof is concave. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex, and an image-side surface S12 thereof is convex. The seventh lens element E7 has negative refractive power, wherein the object-side surface S13 is concave, and the image-side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 1 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 1, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
Figure BDA0001445806850000101
Figure BDA0001445806850000111
TABLE 1
As can be seen from table 1, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspheric. In the present embodiment, the surface shape x of each aspherical lens can be defined by, but not limited to, the following aspherical formula:
Figure BDA0001445806850000112
wherein x is the distance vector height from the vertex of the aspheric surface when the aspheric surface is at the position with the height h along the optical axis direction; c is the paraxial curvature of the aspheric surface, c=1/R (i.e., paraxial curvature c is the inverse of radius of curvature R in table 1 above); k is the conic coefficient (given in table 1); ai is the correction coefficient of the aspherical i-th order. Table 2 below shows the higher order coefficients A that can be used for each of the aspherical mirrors S1-S14 in example 1 4 、A 6 、A 8 、A 10 、A 12 、A 14 、A 16 、A 18 And A 20 。
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -9.6100E-03 6.4354E-02 -2.2752E-01 4.9383E-01 -6.8363E-01 6.0365E-01 -3.2970E-01 1.0100E-01 -1.3360E-02
S2 -9.9670E-02 1.1211E-01 1.8602E-01 -9.7186E-01 1.8102E+00 -1.9196E+00 1.2028E+00 -4.1341E-01 5.9939E-02
S3 -1.7887E-01 3.4329E-01 -4.8103E-01 7.4328E-01 -1.1333E+00 1.2693E+00 -8.7261E-01 3.2940E-01 -5.2440E-02
S4 -7.8170E-02 -2.1530E-02 1.1801E+00 -5.0751E+00 1.2193E+01 -1.7899E+01 1.5876E+01 -7.7921E+00 1.6308E+00
S5 -7.9840E-02 1.3189E-01 -8.5200E-01 2.4292E+00 -4.5264E+00 5.3997E+00 -4.0601E+00 1.8226E+00 -3.8096E-01
S6 3.5613E-02 -2.0127E-01 9.6660E-01 -3.4935E+00 7.4444E+00 -9.4690E+00 7.0676E+00 -2.8355E+00 4.6899E-01
S7 -3.6800E-03 7.6484E-02 -4.3323E-01 1.1785E+00 -2.0201E+00 2.4372E+00 -2.0035E+00 9.5575E-01 -1.8947E-01
S8 -1.2773E-01 1.1835E-01 -2.2444E-01 3.0869E-02 5.4935E-01 -1.0628E+00 9.8617E-01 -4.7910E-01 9.7996E-02
S9 -2.2027E-01 2.3157E-01 -5.0670E-01 8.9234E-01 -1.2931E+00 1.1957E+00 -5.7771E-01 1.1223E-01 -8.3000E-04
S10 -1.7177E-01 1.9157E-01 -4.6011E-01 8.6283E-01 -1.0810E+00 8.3132E-01 -3.6968E-01 8.7028E-02 -8.3900E-03
S11 -5.0510E-02 3.6812E-02 -2.3171E-01 4.8139E-01 -5.2615E-01 3.3309E-01 -1.2318E-01 2.4682E-02 -2.0600E-03
S12 -1.5094E-01 2.5511E-01 -4.2149E-01 4.4916E-01 -2.8015E-01 1.0389E-01 -2.2650E-02 2.6860E-03 -1.3000E-04
S13 -1.3929E-01 1.5506E-02 2.9978E-02 -1.1730E-02 1.1160E-03 2.5100E-04 -7.6000E-05 7.6500E-06 -2.8000E-07
S14 -1.1865E-01 7.1242E-02 -3.3840E-02 1.1731E-02 -2.9400E-03 5.1200E-04 -5.9000E-05 3.9700E-06 -1.2000E-07
TABLE 2
Table 3 gives the effective focal lengths f1 to f7 of the respective lenses in embodiment 1, the total effective focal length f of the optical imaging lens, the total optical length TTL of the optical imaging lens (i.e., the distance on the optical axis from the center of the object side surface S1 of the first lens E1 to the imaging surface S17), and half the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.
f1(mm) 3.71 f(mm) 4.00
f2(mm) -9.93 TTL(mm) 4.98
f3(mm) 5.68 ImgH(mm) 3.36
f4(mm) -6.03
f5(mm) -13.67
f6(mm) 2.18
f7(mm) -2.01
TABLE 3 Table 3
The optical imaging lens in embodiment 1 satisfies:
f/EPD = 1.58, where f is the total effective focal length of the optical imaging lens, EPD is the entrance pupil diameter of the optical imaging lens;
F12/f34|=0.06, where f12 is the combined focal length of the first lens E1 and the second lens E2, and f34 is the combined focal length of the third lens E3 and the fourth lens E4;
f2/f7=4.94, where f2 is the effective focal length of the second lens E2 and f7 is the effective focal length of the seventh lens E7;
r1/r4=0.63, wherein R1 is a radius of curvature of the object side surface S1 of the first lens element E1, and R4 is a radius of curvature of the image side surface S4 of the second lens element E2;
r12/r14= -0.88, wherein R12 is the radius of curvature of the image side surface S12 of the sixth lens element E6, and R14 is the radius of curvature of the image side surface S14 of the seventh lens element E7;
TTL/imgh=1.48, where TTL is the optical total length of the optical imaging lens, and ImgH is half of the diagonal length of the effective pixel area on the imaging surface S17;
f/f7= -1.99, where f is the total effective focal length of the optical imaging lens, and f7 is the effective focal length of the seventh lens E7;
CT6 = 0.61mm, where CT6 is the center thickness of the sixth lens E6 on the optical axis;
f1/r1=2.20, where f1 is the effective focal length of the first lens E1, and R1 is the radius of curvature of the object-side surface S1 of the first lens E1;
CT 1/f2= -0.08, wherein CT1 is the center thickness of the first lens E1 on the optical axis, and f2 is the effective focal length of the second lens E2;
f6/f7= -1.08, where f6 is the effective focal length of the sixth lens E6 and f7 is the effective focal length of the seventh lens E7;
f7/r14=1.28, where f7 is the effective focal length of the seventh lens E7, and R14 is the radius of curvature of the image-side surface S14 of the seventh lens E7;
f6/f3=0.38, where f6 is the effective focal length of the sixth lens E6 and f3 is the effective focal length of the third lens E3.
In addition, fig. 2A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 1, which represents the deviation of the converging focus after light rays of different wavelengths pass through the lens. Fig. 2B shows an astigmatism curve of the optical imaging lens of embodiment 1, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 2C shows a distortion curve of the optical imaging lens of embodiment 1, which represents distortion magnitude values at different angles of view. Fig. 2D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 1, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 2A to 2D, the optical imaging lens provided in embodiment 1 can achieve good imaging quality.
Example 2
An optical imaging lens according to embodiment 2 of the present application is described below with reference to fig. 3 to 4D. In this embodiment and the following embodiments, descriptions of portions similar to embodiment 1 will be omitted for brevity. Fig. 3 shows a schematic structural diagram of an optical imaging lens according to embodiment 2 of the present application.
As shown in fig. 3, the optical imaging lens according to the exemplary embodiment of the present application sequentially includes, from an object side to an image side along an optical axis: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is convex. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is convex and an image-side surface S8 thereof is concave. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex, and an image-side surface S12 thereof is convex. The seventh lens element E7 has negative refractive power, wherein the object-side surface S13 is concave, and the image-side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 4 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 2, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
Figure BDA0001445806850000141
TABLE 4 Table 4
As can be seen from table 4, in embodiment 2, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 5 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 2, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Figure BDA0001445806850000142
Figure BDA0001445806850000151
TABLE 5
Table 6 shows the effective focal lengths f1 to f7 of the respective lenses in embodiment 2, the total effective focal length f of the optical imaging lens, the total optical length TTL of the optical imaging lens, and half the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.
f1(mm) 4.15 f(mm) 3.88
f2(mm) -16.33 TTL(mm) 4.82
f3(mm) 11.43 ImgH(mm) 3.34
f4(mm) -18.87
f5(mm) -411.43
f6(mm) 2.64
f7(mm) -1.92
TABLE 6
Fig. 4A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 2, which indicates the deviation of the converging focus after light rays of different wavelengths pass through the lens. Fig. 4B shows an astigmatism curve of the optical imaging lens of embodiment 2, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 4C shows a distortion curve of the optical imaging lens of embodiment 2, which represents distortion magnitude values at different angles of view. Fig. 4D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 2, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 4A to 4D, the optical imaging lens provided in embodiment 2 can achieve good imaging quality.
Example 3
An optical imaging lens according to embodiment 3 of the present application is described below with reference to fig. 5 to 6D. Fig. 5 shows a schematic structural diagram of an optical imaging lens according to embodiment 3 of the present application.
As shown in fig. 5, the optical imaging lens according to the exemplary embodiment of the present application sequentially includes, from an object side to an image side along an optical axis: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is convex. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is convex and an image-side surface S8 thereof is concave. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex, and an image-side surface S12 thereof is convex. The seventh lens element E7 has negative refractive power, wherein the object-side surface S13 is concave, and the image-side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 7 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 3, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
Figure BDA0001445806850000161
Figure BDA0001445806850000171
TABLE 7
As is clear from table 7, in embodiment 3, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 8 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 3, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.5110E-02 1.0181E-01 -3.0971E-01 5.5640E-01 -6.3575E-01 4.5669E-01 -1.9996E-01 4.7892E-02 -4.7600E-03
S2 -5.0320E-02 -6.4500E-03 8.4655E-02 -1.9261E-01 2.4587E-01 -1.9882E-01 9.8900E-02 -2.7480E-02 3.2560E-03
S3 -1.2023E-01 1.1884E-01 -2.0927E-01 7.1792E-01 -1.3992E+00 1.5598E+00 -9.9462E-01 3.3538E-01 -4.4970E-02
S4 -7.0790E-02 -6.8650E-02 9.5569E-01 -4.0189E+00 1.0873E+01 -1.8731E+01 1.9715E+01 -1.1538E+01 2.8850E+00
S5 -5.9600E-02 5.9986E-02 -6.2202E-01 1.8806E+00 -3.4013E+00 3.4044E+00 -1.4350E+00 -2.2399E-01 2.9631E-01
S6 -1.2867E-01 2.1240E-01 -1.0013E+00 2.1955E+00 -3.2117E+00 3.0916E+00 -1.7060E+00 4.1643E-01 -1.4020E-02
S7 -2.6235E-01 5.0293E-01 -1.4849E+00 2.5300E+00 -2.5912E+00 1.4054E+00 -8.6700E-03 -4.2226E-01 1.5230E-01
S8 -2.0817E-01 2.8366E-01 -3.8914E-01 8.0413E-02 4.9164E-01 -7.4772E-01 5.0053E-01 -1.7380E-01 2.6967E-02
S9 -1.3891E-01 1.6107E-01 -2.6656E-01 7.4229E-01 -1.8758E+00 2.6417E+00 -2.0439E+00 8.2287E-01 -1.3479E-01
S10 -1.4675E-01 -3.4440E-02 2.6558E-01 -4.0922E-01 2.8134E-01 -7.3580E-02 -2.3500E-03 3.1480E-03 -1.4000E-04
S11 -3.9900E-03 -2.3724E-01 3.4309E-01 -1.9006E-01 -1.4980E-01 2.8339E-01 -1.7499E-01 5.1120E-02 -5.9000E-03
S12 1.0208E-02 -1.0144E-01 1.9555E-01 -1.8663E-01 9.6083E-02 -2.6920E-02 3.7640E-03 -1.7000E-04 -6.5000E-06
S13 -2.8510E-01 2.7288E-01 -2.0701E-01 1.3592E-01 -5.9610E-02 1.6088E-02 -2.5800E-03 2.2800E-04 -8.5000E-06
S14 -1.5834E-01 1.3546E-01 -8.7290E-02 3.8896E-02 -1.1770E-02 2.3080E-03 -2.7000E-04 1.6900E-05 -3.8000E-07
TABLE 8
Table 9 gives the effective focal lengths f1 to f7 of the respective lenses in embodiment 3, the total effective focal length f of the optical imaging lens, the total optical length TTL of the optical imaging lens, and half the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.
f1(mm) 4.22 f(mm) 3.92
f2(mm) -16.52 TTL(mm) 4.82
f3(mm) 11.28 ImgH(mm) 3.34
f4(mm) -18.46
f5(mm) 2157.54
f6(mm) 2.67
f7(mm) -1.95
TABLE 9
Fig. 6A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 3, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 6B shows an astigmatism curve of the optical imaging lens of embodiment 3, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 6C shows a distortion curve of the optical imaging lens of embodiment 3, which represents distortion magnitude values at different angles of view. Fig. 6D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 3, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 6A to 6D, the optical imaging lens provided in embodiment 3 can achieve good imaging quality.
Example 4
An optical imaging lens according to embodiment 4 of the present application is described below with reference to fig. 7 to 8D. Fig. 7 shows a schematic structural diagram of an optical imaging lens according to embodiment 4 of the present application.
As shown in fig. 7, the optical imaging lens according to the exemplary embodiment of the present application sequentially includes, from an object side to an image side along an optical axis: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is convex. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is concave, and an image-side surface S8 thereof is concave. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex, and an image-side surface S12 thereof is convex. The seventh lens element E7 has negative refractive power, wherein the object-side surface S13 is concave, and the image-side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 10 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 4, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
Figure BDA0001445806850000191
Table 10
As can be seen from table 10, in example 4, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 11 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 4, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.5890E-02 1.0865E-01 -3.5138E-01 6.7315E-01 -8.3500E-01 6.5883E-01 -3.2197E-01 8.7814E-02 -1.0140E-02
S2 -6.2480E-02 9.9910E-03 9.0788E-02 -2.6462E-01 3.8786E-01 -3.5028E-01 1.9258E-01 -5.8840E-02 7.6400E-03
S3 -1.3177E-01 1.6835E-01 -2.4957E-01 7.2560E-01 -1.3738E+00 1.4515E+00 -7.7477E-01 1.4665E-01 1.3634E-02
S4 -7.5470E-02 -4.3040E-02 1.0885E+00 -5.0563E+00 1.4662E+01 -2.7060E+01 3.0635E+01 -1.9343E+01 5.2285E+00
S5 -8.9620E-02 2.4116E-01 -1.5112E+00 4.7468E+00 -9.0751E+00 1.0071E+01 -5.5574E+00 5.9752E-01 4.8979E-01
S6 -1.1733E-01 -1.1623E-01 7.0810E-03 1.0801E+00 -4.2291E+00 7.8223E+00 -7.6858E+00 3.8581E+00 -7.8080E-01
S7 -2.9272E-01 7.5147E-01 -3.5448E+00 1.0605E+01 -2.0599E+01 2.5822E+01 -1.9902E+01 8.4883E+00 -1.5242E+00
S8 -1.8046E-01 1.7187E-01 -8.1840E-02 -4.4769E-01 1.0441E+00 -1.1093E+00 6.3482E-01 -1.9095E-01 2.5334E-02
S9 -1.9603E-01 3.6782E-01 -8.0634E-01 1.6715E+00 -2.8911E+00 3.2928E+00 -2.2697E+00 8.6785E-01 -1.4164E-01
S10 -1.9583E-01 5.3010E-02 1.2246E-01 -1.7709E-01 -4.9240E-02 2.4633E-01 -1.8148E-01 5.5222E-02 -6.2500E-03
S11 -3.9140E-02 -9.1390E-02 -1.1181E-01 7.0261E-01 -1.2754E+00 1.1743E+00 -5.9789E-01 1.6068E-01 -1.7790E-02
S12 -1.8100E-02 -3.1820E-02 1.1872E-01 -1.6136E-01 1.1427E-01 -4.6090E-02 1.0739E-02 -1.3500E-03 7.1700E-05
S13 -2.9839E-01 3.1043E-01 -2.6363E-01 1.8559E-01 -8.5520E-02 2.4251E-02 -4.1100E-03 3.8400E-04 -1.5000E-05
S14 -1.4746E-01 1.1305E-01 -6.5200E-02 2.5753E-02 -6.7400E-03 1.0800E-03 -9.0000E-05 1.8500E-06 1.4400E-07
TABLE 11
Table 12 gives the effective focal lengths f1 to f7 of the respective lenses in embodiment 4, the total effective focal length f of the optical imaging lens, the total optical length TTL of the optical imaging lens, and half the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.
f1(mm) 4.02 f(mm) 3.85
f2(mm) -15.97 TTL(mm) 4.82
f3(mm) 11.14 ImgH(mm) 3.34
f4(mm) -20.14
f5(mm) -57.01
f6(mm) 2.69
f7(mm) -1.92
Table 12
Fig. 8A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 4, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 8B shows an astigmatism curve of the optical imaging lens of embodiment 4, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 8C shows a distortion curve of the optical imaging lens of embodiment 4, which represents distortion magnitude values at different angles of view. Fig. 8D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 4, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 8A to 8D, the optical imaging lens provided in embodiment 4 can achieve good imaging quality.
Example 5
An optical imaging lens according to embodiment 5 of the present application is described below with reference to fig. 9 to 10D. Fig. 9 shows a schematic structural diagram of an optical imaging lens according to embodiment 5 of the present application.
As shown in fig. 9, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes, along an optical axis from an object side to an image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is convex. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is concave, and an image-side surface S8 thereof is concave. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex, and an image-side surface S12 thereof is convex. The seventh lens element E7 has negative refractive power, wherein the object-side surface S13 is concave, and the image-side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 13 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 5, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
Figure BDA0001445806850000211
TABLE 13
As is clear from table 13, in example 5, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 14 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 5, where each aspherical surface profile can be obtained from the above-described solid
The formula (1) given in example 1 is defined.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -1.7260E-02 6.8051E-02 -2.2949E-01 4.4964E-01 -5.6729E-01 4.5059E-01 -2.1933E-01 5.8548E-02 -6.4900E-03
S2 -5.7290E-02 1.5112E-02 3.6099E-02 -1.1342E-01 1.5791E-01 -1.3998E-01 7.7662E-02 -2.4310E-02 3.2580E-03
S3 -1.2131E-01 1.2347E-01 -1.2959E-01 4.6878E-01 -1.0693E+00 1.3614E+00 -9.6208E-01 3.4927E-01 -4.7830E-02
S4 -7.3950E-02 -6.9700E-03 7.0336E-01 -3.3506E+00 1.0202E+01 -1.9903E+01 2.3804E+01 -1.5835E+01 4.5041E+00
S5 -6.5670E-02 5.9553E-02 -5.3307E-01 1.3721E+00 -1.7753E+00 7.6472E-02 2.8857E+00 -3.4441E+00 1.3474E+00
S6 -1.1546E-01 -4.0930E-02 1.4215E-01 -9.5878E-01 2.5269E+00 -3.6575E+00 3.2872E+00 -1.7407E+00 4.0778E-01
S7 -2.4432E-01 3.7026E-01 -1.1876E+00 2.2278E+00 -2.6523E+00 2.0459E+00 -8.0582E-01 -2.8830E-02 9.0787E-02
S8 -1.8359E-01 2.3274E-01 -3.0643E-01 1.7276E-02 4.0842E-01 -5.0568E-01 2.5393E-01 -5.1220E-02 2.9410E-03
S9 -1.6250E-01 2.1360E-01 -2.8721E-01 6.2611E-01 -1.6848E+00 2.5613E+00 -2.1179E+00 9.1352E-01 -1.6137E-01
S10 -1.6941E-01 -7.3110E-02 5.1071E-01 -9.0683E-01 8.4206E-01 -4.6180E-01 1.6512E-01 -3.8510E-02 4.4030E-03
S11 -3.2230E-02 -1.6901E-01 4.5289E-02 5.1759E-01 -1.1239E+00 1.0955E+00 -5.7944E-01 1.6147E-01 -1.8530E-02
S12 2.8779E-02 -1.5061E-01 2.1817E-01 -1.6309E-01 6.2391E-02 -8.4900E-03 -1.6200E-03 6.6000E-04 -6.0000E-05
S13 -2.7308E-01 2.2675E-01 -1.3912E-01 8.4432E-02 -3.7110E-02 1.0191E-02 -1.6700E-03 1.5000E-04 -5.7000E-06
S14 -1.5661E-01 1.3081E-01 -8.2490E-02 3.6520E-02 -1.1160E-02 2.2480E-03 -2.8000E-04 1.9000E-05 -5.2000E-07
TABLE 14
Table 15 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 5, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.
f1(mm) 4.05 f(mm) 3.94
f2(mm) -14.97 TTL(mm) 4.80
f3(mm) 9.98 ImgH(mm) 3.36
f4(mm) -16.27
f5(mm) -76.47
f6(mm) 2.68
f7(mm) -1.93
TABLE 15
Fig. 10A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 5, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 10B shows an astigmatism curve of the optical imaging lens of embodiment 5, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 10C shows a distortion curve of the optical imaging lens of embodiment 5, which represents distortion magnitude values at different angles of view. Fig. 10D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 5, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 10A to 10D, the optical imaging lens provided in embodiment 5 can achieve good imaging quality.
Example 6
An optical imaging lens according to embodiment 6 of the present application is described below with reference to fig. 11 to 12D. Fig. 11 shows a schematic structural diagram of an optical imaging lens according to embodiment 6 of the present application.
As shown in fig. 11, an optical imaging lens according to an exemplary embodiment of the present application sequentially includes, along an optical axis from an object side to an image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is convex. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is convex and an image-side surface S8 thereof is concave. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is convex, and an image-side surface S10 thereof is convex. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex, and an image-side surface S12 thereof is convex. The seventh lens element E7 has negative refractive power, wherein the object-side surface S13 is concave, and the image-side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 16 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 6, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
Figure BDA0001445806850000231
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Figure BDA0001445806850000241
Table 16
As is clear from table 16, in example 6, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 17 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 6, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.2990E-02 9.6412E-02 -2.9850E-01 5.4329E-01 -6.2498E-01 4.4874E-01 -1.9448E-01 4.5436E-02 -4.3200E-03
S2 -4.4900E-02 -1.4090E-02 8.1942E-02 -1.7777E-01 2.3282E-01 -1.9819E-01 1.0449E-01 -3.0790E-02 3.8680E-03
S3 -1.1630E-01 9.8568E-02 -1.5952E-01 6.0029E-01 -1.1718E+00 1.2694E+00 -7.7053E-01 2.4000E-01 -2.7720E-02
S4 -7.0630E-02 -3.7810E-02 6.6015E-01 -2.6832E+00 7.4011E+00 -1.3205E+01 1.4426E+01 -8.7536E+00 2.2675E+00
S5 -5.2210E-02 1.7792E-02 -4.3394E-01 1.3392E+00 -2.4129E+00 2.2781E+00 -6.7545E-01 -5.0271E-01 3.4176E-01
S6 -1.1854E-01 1.5745E-01 -7.5891E-01 1.5284E+00 -1.9096E+00 1.3801E+00 -3.3095E-01 -1.8477E-01 9.6125E-02
S7 -2.4843E-01 4.7234E-01 -1.4941E+00 2.8342E+00 -3.4064E+00 2.5451E+00 -1.0222E+00 1.2813E-01 1.7206E-02
S8 -1.8674E-01 2.3413E-01 -3.2258E-01 5.7694E-02 4.4253E-01 -6.6750E-01 4.3720E-01 -1.4424E-01 2.0347E-02
S9 -1.4461E-01 2.1000E-01 -4.9195E-01 1.2525E+00 -2.5242E+00 3.1256E+00 -2.2424E+00 8.5625E-01 -1.3428E-01
S10 -1.4717E-01 -4.0000E-04 1.6840E-01 -2.7910E-01 1.9195E-01 -4.6170E-02 -3.6100E-03 2.3850E-03 -1.0000E-04
S11 -9.6500E-03 -1.8147E-01 2.0645E-01 -1.4400E-03 -3.1467E-01 3.7506E-01 -2.0770E-01 5.8326E-02 -6.6600E-03
S12 2.4436E-02 -1.2564E-01 2.2571E-01 -2.0861E-01 1.0152E-01 -2.5130E-02 2.3990E-03 1.2200E-04 -2.9000E-05
S13 -2.8427E-01 2.6953E-01 -2.0218E-01 1.3204E-01 -5.7670E-02 1.5471E-02 -2.4600E-03 2.1500E-04 -7.9000E-06
S14 -1.6803E-01 1.5103E-01 -1.0319E-01 4.9357E-02 -1.6240E-02 3.5450E-03 -4.9000E-04 3.7500E-05 -1.2000E-06
TABLE 17
Table 18 gives the effective focal lengths f1 to f7 of the respective lenses in embodiment 6, the total effective focal length f of the optical imaging lens, the total optical length TTL of the optical imaging lens, and half the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.
Figure BDA0001445806850000242
Figure BDA0001445806850000251
TABLE 18
Fig. 12A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 6, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 12B shows an astigmatism curve of the optical imaging lens of embodiment 6, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 12C shows a distortion curve of the optical imaging lens of embodiment 6, which represents distortion magnitude values at different angles of view. Fig. 12D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 6, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 12A to 12D, the optical imaging lens provided in embodiment 6 can achieve good imaging quality.
Example 7
An optical imaging lens according to embodiment 7 of the present application is described below with reference to fig. 13 to 14D. Fig. 13 shows a schematic structural diagram of an optical imaging lens according to embodiment 7 of the present application.
As shown in fig. 13, the optical imaging lens according to the exemplary embodiment of the present application sequentially includes, from an object side to an image side along an optical axis: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is convex. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is concave, and an image-side surface S8 thereof is concave. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex, and an image-side surface S12 thereof is convex. The seventh lens element E7 has negative refractive power, wherein the object-side surface S13 is concave, and the image-side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 13 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 7, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
Figure BDA0001445806850000261
TABLE 19
As is clear from table 19, in example 7, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 20 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 7, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Figure BDA0001445806850000262
Figure BDA0001445806850000271
Table 20
Table 21 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 7, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.
f1(mm) 4.10 f(mm) 3.91
f2(mm) -15.89 TTL(mm) 4.81
f3(mm) 9.80 ImgH(mm) 3.38
f4(mm) -15.37
f5(mm) -86.08
f6(mm) 2.69
f7(mm) -1.94
Table 21
Fig. 14A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 7, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 14B shows an astigmatism curve of the optical imaging lens of embodiment 7, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 14C shows a distortion curve of the optical imaging lens of embodiment 7, which represents distortion magnitude values in the case of different angles of view. Fig. 14D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 7, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 14A to 14D, the optical imaging lens provided in embodiment 7 can achieve good imaging quality.
Example 8
An optical imaging lens according to embodiment 8 of the present application is described below with reference to fig. 15 to 16D. Fig. 15 shows a schematic structural diagram of an optical imaging lens according to embodiment 8 of the present application.
As shown in fig. 15, the optical imaging lens according to the exemplary embodiment of the present application sequentially includes, from an object side to an image side along an optical axis: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is convex. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is concave and an image-side surface S8 thereof is convex. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex, and an image-side surface S12 thereof is convex. The seventh lens element E7 has negative refractive power, wherein the object-side surface S13 is concave, and the image-side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 15 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 8, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
Figure BDA0001445806850000281
Table 22
As can be seen from table 22, in example 8, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 23 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 8, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.7000E-02 1.3381E-01 -4.7609E-01 1.0048E+00 -1.3488E+00 1.1376E+00 -5.8510E-01 1.6553E-01 -1.9570E-02
S2 -6.0890E-02 -4.5000E-05 1.4826E-01 -4.6498E-01 8.1381E-01 -8.9752E-01 6.0390E-01 -2.2540E-01 3.5723E-02
S3 -1.3370E-01 2.4910E-01 -9.4772E-01 3.7054E+00 -8.9618E+00 1.3295E+01 -1.1864E+01 5.8601E+00 -1.2288E+00
S4 -7.0870E-02 -9.3510E-02 1.3573E+00 -6.4228E+00 1.9222E+01 -3.6966E+01 4.4062E+01 -2.9617E+01 8.6336E+00
S5 -5.5950E-02 -1.4029E-01 7.2036E-01 -3.5267E+00 1.0430E+01 -1.9359E+01 2.2043E+01 -1.4172E+01 4.0089E+00
S6 -1.3976E-01 -1.5729E-01 1.6681E+00 -8.1718E+00 2.1503E+01 -3.3904E+01 3.2455E+01 -1.7436E+01 4.0322E+00
S7 -3.0373E-01 5.7895E-01 -1.9464E+00 4.0577E+00 -5.6361E+00 4.8159E+00 -1.5019E+00 -8.6748E-01 5.9068E-01
S8 -1.8090E-01 -2.1730E-01 2.5574E+00 -9.4381E+00 1.8761E+01 -2.2527E+01 1.6492E+01 -6.8388E+00 1.2376E+00
S9 -1.6898E-01 -2.8920E-02 1.3734E+00 -4.3093E+00 6.6017E+00 -6.2090E+00 3.9630E+00 -1.6668E+00 3.4116E-01
S10 -1.8094E-01 -1.1353E-01 7.5605E-01 -1.2196E+00 5.9388E-01 4.9136E-01 -7.3783E-01 3.3389E-01 -5.3470E-02
S11 -9.4500E-03 -2.5279E-01 3.0755E-01 1.1036E-01 -8.5286E-01 1.0697E+00 -6.4076E-01 1.9293E-01 -2.3430E-02
S12 -2.0570E-02 -3.7170E-02 1.7938E-01 -2.8558E-01 2.3254E-01 -1.0782E-01 2.8998E-02 -4.2300E-03 2.6100E-04
S13 -3.0751E-01 3.4077E-01 -3.1625E-01 2.3588E-01 -1.1315E-01 3.3205E-02 -5.8000E-03 5.5300E-04 -2.2000E-05
S14 -1.5369E-01 1.3093E-01 -8.9180E-02 4.3295E-02 -1.4420E-02 3.1540E-03 -4.3000E-04 3.2200E-05 -1.0000E-06
Table 23
Table 24 gives the effective focal lengths f1 to f7 of the respective lenses in embodiment 8, the total effective focal length f of the optical imaging lens, the total optical length TTL of the optical imaging lens, and half the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.
f1(mm) 3.92 f(mm) 3.82
f2(mm) -19.35 TTL(mm) 4.70
f3(mm) 13.09 ImgH(mm) 3.36
f4(mm) -24.30
f5(mm) -33.93
f6(mm) 2.75
f7(mm) -1.93
Table 24
Fig. 16A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 8, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 16B shows an astigmatism curve of the optical imaging lens of embodiment 8, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 16C shows a distortion curve of the optical imaging lens of embodiment 8, which represents distortion magnitude values in the case of different angles of view. Fig. 16D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 8, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 16A to 16D, the optical imaging lens provided in embodiment 8 can achieve good imaging quality.
Example 9
An optical imaging lens according to embodiment 9 of the present application is described below with reference to fig. 17 to 18D. Fig. 17 shows a schematic configuration diagram of an optical imaging lens according to embodiment 9 of the present application.
As shown in fig. 17, the optical imaging lens according to the exemplary embodiment of the present application sequentially includes, from an object side to an image side along an optical axis: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is convex. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is concave, and an image-side surface S8 thereof is concave. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex, and an image-side surface S12 thereof is convex. The seventh lens element E7 has negative refractive power, wherein the object-side surface S13 is concave, and the image-side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 25 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 9, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
Figure BDA0001445806850000301
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Figure BDA0001445806850000311
Table 25
As is clear from table 25, in example 9, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 26 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 9, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.2620E-02 1.0553E-01 -3.7553E-01 7.8141E-01 -1.0466E+00 8.8543E-01 -4.6094E-01 1.3307E-01 -1.6160E-02
S2 -6.0040E-02 -1.0330E-02 2.0487E-01 -6.1586E-01 1.0285E+00 -1.0673E+00 6.7380E-01 -2.3631E-01 3.5264E-02
S3 -1.2715E-01 1.9884E-01 -5.0188E-01 1.9033E+00 -4.6772E+00 6.9937E+00 -6.2273E+00 3.0508E+00 -6.3124E-01
S4 -7.2510E-02 -6.9990E-02 1.4853E+00 -7.8475E+00 2.5424E+01 -5.1810E+01 6.4338E+01 -4.4436E+01 1.3136E+01
S5 -8.4960E-02 1.2516E-01 -1.1373E+00 4.4366E+00 -1.0823E+01 1.6138E+01 -1.3829E+01 5.7840E+00 -6.4253E-01
S6 -2.1479E-01 5.3499E-01 -2.4030E+00 6.3186E+00 -1.0998E+01 1.2640E+01 -8.9673E+00 3.4515E+00 -5.3232E-01
S7 -3.2318E-01 6.8338E-01 -2.2423E+00 4.2313E+00 -4.4320E+00 1.5752E+00 1.8228E+00 -2.3198E+00 7.7517E-01
S8 -2.1930E-01 2.5688E-01 3.2200E-03 -1.6873E+00 4.5341E+00 -6.1466E+00 4.7670E+00 -2.0287E+00 3.7102E-01
S9 -1.7134E-01 1.2516E-01 3.4906E-01 -1.4318E+00 2.0855E+00 -1.6302E+00 7.2452E-01 -1.7717E-01 2.0883E-02
S10 -1.7822E-01 -9.1830E-02 6.9725E-01 -1.3950E+00 1.4778E+00 -9.1275E-01 3.3653E-01 -6.9360E-02 6.1290E-03
S11 -8.6500E-03 -3.7510E-01 7.9218E-01 -9.1083E-01 4.8218E-01 -2.1400E-02 -1.0577E-01 4.9792E-02 -7.3900E-03
S12 5.1810E-03 -1.4263E-01 3.5248E-01 -4.3468E-01 3.0218E-01 -1.2372E-01 2.9730E-02 -3.9000E-03 2.1500E-04
S13 -3.0314E-01 3.2065E-01 -2.7383E-01 1.9151E-01 -8.7630E-02 2.4717E-02 -4.1700E-03 3.8800E-04 -1.5000E-05
S14 -1.5355E-01 1.3084E-01 -8.7770E-02 4.1201E-02 -1.3150E-02 2.7380E-03 -3.5000E-04 2.4600E-05 -7.0000E-07
Table 26
Table 27 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 9, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.
Figure BDA0001445806850000312
Figure BDA0001445806850000321
Table 27
Fig. 18A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 9, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 18B shows an astigmatism curve of the optical imaging lens of embodiment 9, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 18C shows a distortion curve of the optical imaging lens of embodiment 9, which represents distortion magnitude values in the case of different angles of view. Fig. 18D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 9, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 18A to 18D, the optical imaging lens provided in embodiment 9 can achieve good imaging quality.
Example 10
An optical imaging lens according to embodiment 10 of the present application is described below with reference to fig. 19 to 20D. Fig. 19 shows a schematic structural diagram of an optical imaging lens according to embodiment 10 of the present application.
As shown in fig. 19, the optical imaging lens according to the exemplary embodiment of the present application sequentially includes, from an object side to an image side along an optical axis: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is convex. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is concave, and an image-side surface S8 thereof is concave. The fifth lens element E5 has positive refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex, and an image-side surface S12 thereof is convex. The seventh lens element E7 has negative refractive power, wherein the object-side surface S13 is concave, and the image-side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 28 shows the surface types, radii of curvature, thicknesses, materials, and cone coefficients of the respective lenses of the optical imaging lens of example 10, wherein the radii of curvature and thicknesses are each in millimeters (mm).
Figure BDA0001445806850000331
Table 28
As can be seen from table 28, in embodiment 10, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 29 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 10, where each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Figure BDA0001445806850000332
Figure BDA0001445806850000341
Table 29
Table 30 gives the effective focal lengths f1 to f7 of the respective lenses in embodiment 10, the total effective focal length f of the optical imaging lens, the total optical length TTL of the optical imaging lens, and half the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.
f1(mm) 3.96 f(mm) 3.89
f2(mm) -14.69 TTL(mm) 4.71
f3(mm) 10.66 ImgH(mm) 3.34
f4(mm) -13.97
f5(mm) 1779.54
f6(mm) 2.73
f7(mm) -1.94
Table 30
Fig. 20A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 10, which indicates the deviation of the converging focus after light rays of different wavelengths pass through the lens. Fig. 20B shows an astigmatism curve of the optical imaging lens of embodiment 10, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 20C shows a distortion curve of the optical imaging lens of embodiment 10, which represents distortion magnitude values in the case of different angles of view. Fig. 20D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 10, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 20A to 20D, the optical imaging lens provided in embodiment 10 can achieve good imaging quality.
Example 11
An optical imaging lens according to embodiment 11 of the present application is described below with reference to fig. 21 to 22D. Fig. 21 shows a schematic structural diagram of an optical imaging lens according to embodiment 11 of the present application.
As shown in fig. 21, the optical imaging lens according to the exemplary embodiment of the present application sequentially includes, from an object side to an image side along an optical axis: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is convex. The fourth lens element E4 has negative refractive power, wherein an object-side surface S7 thereof is convex and an image-side surface S8 thereof is concave. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex, and an image-side surface S12 thereof is convex. The seventh lens element E7 has negative refractive power, wherein the object-side surface S13 is concave, and the image-side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 31 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 11, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
Figure BDA0001445806850000351
Figure BDA0001445806850000361
Table 31
As can be seen from table 31, in example 11, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 32 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 11, where each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -1.6240E-02 7.0344E-02 -2.6148E-01 5.4968E-01 -7.3946E-01 6.2268E-01 -3.2092E-01 9.0937E-02 -1.0720E-02
S2 -6.3190E-02 1.1604E-02 9.7205E-02 -3.2132E-01 5.4132E-01 -5.6494E-01 3.5854E-01 -1.2624E-01 1.8889E-02
S3 -1.3608E-01 1.8562E-01 -3.9985E-01 1.5701E+00 -3.8963E+00 5.7667E+00 -5.0323E+00 2.4024E+00 -4.8255E-01
S4 -7.9540E-02 -2.5910E-02 1.0713E+00 -5.2608E+00 1.6271E+01 -3.2328E+01 3.9608E+01 -2.7157E+01 8.0043E+00
S5 -7.9240E-02 1.6525E-01 -1.3571E+00 5.3378E+00 -1.3373E+01 2.0927E+01 -1.9571E+01 9.7706E+00 -1.8691E+00
S6 -2.2401E-01 4.2030E-01 -1.9596E+00 5.6196E+00 -1.0869E+01 1.3811E+01 -1.0781E+01 4.6252E+00 -8.3228E-01
S7 -3.0103E-01 5.6466E-01 -1.9663E+00 4.6390E+00 -7.4520E+00 7.9855E+00 -5.2942E+00 1.9057E+00 -2.8973E-01
S8 -1.8959E-01 2.3251E-01 -2.5152E-01 -1.8550E-01 9.5978E-01 -1.4359E+00 1.1311E+00 -4.7758E-01 8.6829E-02
S9 -1.6698E-01 1.0682E-01 2.8352E-01 -1.0654E+00 1.4622E+00 -1.0733E+00 3.9277E-01 -3.5080E-02 -1.0150E-02
S10 -1.9234E-01 5.4477E-02 1.6822E-01 -3.5857E-01 2.9158E-01 -1.0800E-01 2.5089E-02 -8.2900E-03 1.8160E-03
S11 -2.3410E-02 -2.4441E-01 4.9879E-01 -6.3858E-01 4.9699E-01 -2.6359E-01 1.0016E-01 -2.4950E-02 2.9750E-03
S12 -3.1300E-03 -8.8940E-02 2.0153E-01 -2.2562E-01 1.4146E-01 -5.1430E-02 1.0732E-02 -1.1900E-03 5.3100E-05
S13 -3.0455E-01 3.1545E-01 -2.6327E-01 1.8306E-01 -8.3550E-02 2.3428E-02 -3.9200E-03 3.6000E-04 -1.4000E-05
S14 -1.5685E-01 1.3077E-01 -8.3160E-02 3.6409E-02 -1.0670E-02 1.9720E-03 -2.1000E-04 9.9900E-06 -5.5000E-08
Table 32
Table 33 gives the effective focal lengths f1 to f7 of the respective lenses in embodiment 11, the total effective focal length f of the optical imaging lens, the total optical length TTL of the optical imaging lens, and half the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.
f1(mm) 3.97 f(mm) 3.95
f2(mm) -15.02 TTL(mm) 4.73
f3(mm) 13.91 ImgH(mm) 3.35
f4(mm) -42.12
f5(mm) -52.79
f6(mm) 2.74
f7(mm) -1.91
Table 33
Fig. 22A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 11, which indicates a convergent focus deviation of light rays of different wavelengths after passing through the lens. Fig. 22B shows an astigmatism curve of the optical imaging lens of embodiment 11, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 22C shows a distortion curve of the optical imaging lens of embodiment 11, which represents distortion magnitude values in the case of different angles of view. Fig. 22D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 11, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 22A to 22D, the optical imaging lens provided in embodiment 11 can achieve good imaging quality.
Example 12
An optical imaging lens according to embodiment 12 of the present application is described below with reference to fig. 23 to 24D. Fig. 23 shows a schematic configuration diagram of an optical imaging lens according to embodiment 12 of the present application.
As shown in fig. 23, the optical imaging lens according to the exemplary embodiment of the present application sequentially includes, along an optical axis from an object side to an image side: a first lens E1, a stop STO, a second lens E2, a third lens E3, a fourth lens E4, a fifth lens E5, a sixth lens E6, a seventh lens E7, an optical filter E8, and an imaging surface S17.
The first lens element E1 has positive refractive power, wherein an object-side surface S1 thereof is convex, and an image-side surface S2 thereof is concave. The second lens element E2 has negative refractive power, wherein an object-side surface S3 thereof is convex, and an image-side surface S4 thereof is concave. The third lens element E3 has positive refractive power, wherein an object-side surface S5 thereof is convex, and an image-side surface S6 thereof is concave. The fourth lens element E4 has positive refractive power, wherein an object-side surface S7 thereof is convex, and an image-side surface S8 thereof is concave. The fifth lens element E5 has negative refractive power, wherein an object-side surface S9 thereof is concave and an image-side surface S10 thereof is convex. The sixth lens element E6 has positive refractive power, wherein an object-side surface S11 thereof is convex, and an image-side surface S12 thereof is convex. The seventh lens element E7 has negative refractive power, wherein the object-side surface S13 is concave, and the image-side surface S14 is concave. The filter E8 has an object side surface S15 and an image side surface S16. Light from the object sequentially passes through the respective surfaces S1 to S16 and is finally imaged on the imaging surface S17.
Table 34 shows the surface types, the radii of curvature, the thicknesses, the materials, and the cone coefficients of the respective lenses of the optical imaging lens of example 12, in which the units of the radii of curvature and the thicknesses are millimeters (mm).
Figure BDA0001445806850000371
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Figure BDA0001445806850000381
Watch 34
As can be seen from table 34, in example 12, the object side surface and the image side surface of any one of the first lens element E1 to the seventh lens element E7 are aspherical surfaces. Table 35 shows the higher order coefficients that can be used for each of the aspherical mirror surfaces in example 12, wherein each of the aspherical surface types can be defined by the formula (1) given in example 1 above.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -1.4420E-02 5.8328E-02 -2.2036E-01 4.6401E-01 -6.2591E-01 5.2639E-01 -2.7046E-01 7.6127E-02 -8.8700E-03
S2 -6.3200E-02 1.0365E-02 1.0113E-01 -3.3138E-01 5.6127E-01 -5.8938E-01 3.7619E-01 -1.3319E-01 2.0041E-02
S3 -1.3583E-01 1.8423E-01 -3.9722E-01 1.5816E+00 -3.9708E+00 5.9412E+00 -5.2412E+00 2.5294E+00 -5.1357E-01
S4 -7.9920E-02 -3.6300E-03 8.8641E-01 -4.3594E+00 1.3594E+01 -2.7436E+01 3.4222E+01 -2.3885E+01 7.1622E+00
S5 -7.7760E-02 1.3463E-01 -1.1467E+00 4.5245E+00 -1.1454E+01 1.8127E+01 -1.7135E+01 8.6299E+00 -1.6539E+00
S6 -2.4825E-01 5.5658E-01 -2.5078E+00 7.0824E+00 -1.3517E+01 1.6976E+01 -1.3167E+01 5.6618E+00 -1.0329E+00
S7 -3.1361E-01 7.0620E-01 -2.7089E+00 7.0846E+00 -1.2641E+01 1.5041E+01 -1.1275E+01 4.8087E+00 -9.1042E-01
S8 -1.7584E-01 1.5842E-01 -7.0100E-03 -7.5617E-01 1.9530E+00 -2.6181E+00 2.0132E+00 -8.4612E-01 1.5239E-01
S9 -1.7130E-01 1.4790E-01 3.4917E-02 -4.1790E-01 5.6992E-01 -3.6337E-01 6.7390E-02 4.1375E-02 -1.6240E-02
S10 -1.9690E-01 1.1871E-01 -7.6880E-02 1.2201E-01 -2.5342E-01 2.6379E-01 -1.2553E-01 2.4995E-02 -1.2500E-03
S11 -3.3320E-02 -1.6708E-01 2.8210E-01 -2.9849E-01 1.7105E-01 -6.2290E-02 2.0035E-02 -5.9200E-03 9.1100E-04
S12 -5.3000E-03 -7.0400E-02 1.4942E-01 -1.5643E-01 9.0951E-02 -2.9930E-02 5.4000E-03 -4.7000E-04 1.2800E-05
S13 -3.0506E-01 3.1576E-01 -2.6300E-01 1.8255E-01 -8.3170E-02 2.3271E-02 -3.8800E-03 3.5600E-04 -1.4000E-05
S14 -1.5689E-01 1.2924E-01 -7.9950E-02 3.3529E-02 -9.2200E-03 1.5290E-03 -1.3000E-04 1.8700E-06 2.8900E-07
Table 35
Table 36 shows effective focal lengths f1 to f7 of the respective lenses in embodiment 12, a total effective focal length f of the optical imaging lens, an optical total length TTL of the optical imaging lens, and half of the diagonal length ImgH of the effective pixel region on the imaging surface S17 of the optical imaging lens.
f1(mm) 3.96 f(mm) 3.91
f2(mm) -14.51 TTL(mm) 4.70
f3(mm) 24.88 ImgH(mm) 3.35
f4(mm) 56.90
f5(mm) -48.92
f6(mm) 2.73
f7(mm) -1.90
Table 36
Fig. 24A shows an on-axis chromatic aberration curve of the optical imaging lens of embodiment 12, which indicates the deviation of the converging focus after light rays of different wavelengths pass through the lens. Fig. 24B shows an astigmatism curve of the optical imaging lens of embodiment 12, which represents meridional image plane curvature and sagittal image plane curvature. Fig. 24C shows a distortion curve of the optical imaging lens of embodiment 12, which represents distortion magnitude values in the case of different angles of view. Fig. 24D shows a magnification chromatic aberration curve of the optical imaging lens of embodiment 12, which represents the deviation of different image heights on the imaging plane after light passes through the lens. As can be seen from fig. 24A to 24D, the optical imaging lens provided in embodiment 12 can achieve good imaging quality.
In summary, examples 1 to 12 each satisfy the relationship shown in table 37.
Figure BDA0001445806850000391
Figure BDA0001445806850000401
Table 37
The present application also provides an imaging device, the electron-sensitive element of which may be a photosensitive coupling element (CCD) or a complementary metal oxide semiconductor element (CMOS). The imaging device may be a stand alone imaging device such as a digital camera or an imaging module integrated on a mobile electronic device such as a cell phone. The imaging device is equipped with the optical imaging lens described above.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.

Claims (24)

1. The optical imaging lens sequentially comprises, from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens,
It is characterized in that the method comprises the steps of,
the first lens has positive focal power, and the object side surface of the first lens is a convex surface;
the second lens has negative optical power;
the third lens has positive optical power;
the fourth lens has negative focal power;
the fifth lens has positive optical power or negative optical power;
the sixth lens has positive optical power;
the seventh lens has negative focal power, and both the object side surface and the image side surface of the seventh lens are concave surfaces;
the combined focal length f12 of the first lens and the second lens and the combined focal length f34 of the third lens and the fourth lens meet the requirement that |f12/f34| is less than or equal to 0.3;
the effective focal length f2 of the second lens and the effective focal length f7 of the seventh lens meet the condition that f2/f7 is smaller than 11.0 and 4.5; and
the number of lenses having optical power in the optical imaging lens is seven.
2. The optical imaging lens of claim 1, wherein the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens satisfy f/EPD +.1.80.
3. The optical imaging lens of claim 1, wherein the total effective focal length f of the optical imaging lens and the effective focal length f7 of the seventh lens satisfy-2.5 < f/f7 < -1.5.
4. An optical imaging lens as claimed in claim 3, wherein the effective focal length f6 of the sixth lens and the effective focal length f7 of the seventh lens satisfy-1.5 < f6/f7 < -1.0.
5. An optical imaging lens as claimed in claim 3, wherein the effective focal length f7 of the seventh lens and the radius of curvature R14 of the image side of the seventh lens satisfy-1.5 < f7/R14 < -1.0.
6. The optical imaging lens as claimed in claim 1, wherein an effective focal length f1 of the first lens and a radius of curvature R1 of an object side surface of the first lens satisfy 2.0 < f1/R1 < 3.0.
7. The optical imaging lens as claimed in claim 1, wherein a center thickness CT1 of the first lens on the optical axis and an effective focal length f2 of the second lens satisfy-0.2 < CT1/f2 < 0.
8. The optical imaging lens as claimed in claim 1, wherein an effective focal length f6 of the sixth lens and an effective focal length f3 of the third lens satisfy 0 < f6/f3 < 0.5.
9. The optical imaging lens of any of claims 1 to 8, wherein a radius of curvature R1 of the first lens object-side surface and a radius of curvature R4 of the second lens image-side surface satisfy 0 < R1/R4 < 1.
10. The optical imaging lens of any of claims 1 to 8, wherein a radius of curvature R12 of the sixth lens image side and a radius of curvature R14 of the seventh lens image side satisfy-1.5 < R12/R14 < -0.5.
11. The optical imaging lens according to any one of claims 1 to 8, wherein a center thickness CT6 of the sixth lens on the optical axis satisfies 0.3mm < CT6 < 0.8mm.
12. The optical imaging lens as claimed in claim 11, wherein an optical total length TTL of the optical imaging lens and a half ImgH of a diagonal length of an effective pixel area on an imaging surface of the optical imaging lens satisfy TTL/ImgH being less than or equal to 1.50.
13. The optical imaging lens sequentially comprises, from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens,
it is characterized in that the method comprises the steps of,
the first lens has positive focal power, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface;
the second lens has negative optical power;
the third lens has positive optical power;
the fourth lens has negative focal power;
the fifth lens has positive optical power or negative optical power;
The sixth lens has positive optical power;
the seventh lens has negative focal power, and both the object side surface and the image side surface of the seventh lens are concave surfaces;
the total optical length TTL of the optical imaging lens and half of the diagonal line length ImgH of an effective pixel area on an imaging surface of the optical imaging lens meet the condition that TTL/ImgH is less than or equal to 1.50;
the effective focal length f2 of the second lens and the effective focal length f7 of the seventh lens meet the condition that f2/f7 is smaller than 11.0 and 4.5; and
the number of lenses having optical power in the optical imaging lens is seven.
14. The optical imaging lens of claim 13, wherein a radius of curvature R1 of the first lens object-side surface and a radius of curvature R4 of the second lens image-side surface satisfy 0 < R1/R4 < 1.
15. The optical imaging lens of claim 14, wherein an effective focal length f1 of the first lens and a radius of curvature R1 of an object-side surface of the first lens satisfy 2.0 < f1/R1 < 3.0.
16. The optical imaging lens of claim 13, wherein a radius of curvature R12 of the sixth lens image side and a radius of curvature R14 of the seventh lens image side satisfy-1.5 < R12/R14 < -0.5.
17. The optical imaging lens of claim 16, wherein an effective focal length f7 of the seventh lens and a radius of curvature R14 of an image side surface of the seventh lens satisfy-1.5 < f7/R14 < -1.0.
18. The optical imaging lens of claim 13, wherein an effective focal length f6 of the sixth lens and an effective focal length f7 of the seventh lens satisfy-1.5 < f6/f7 < -1.0.
19. The optical imaging lens of claim 13, wherein the total effective focal length f of the optical imaging lens and the effective focal length f7 of the seventh lens satisfy-2.5 < f/f7 < -1.5.
20. The optical imaging lens of claim 13, wherein an effective focal length f6 of the sixth lens and an effective focal length f3 of the third lens satisfy 0 < f6/f3 < 0.5.
21. The optical imaging lens of claim 20, wherein a center thickness CT6 of the sixth lens on the optical axis satisfies 0.3mm < CT6 < 0.8mm.
22. The optical imaging lens of claim 13, wherein a center thickness CT1 of the first lens on the optical axis and an effective focal length f2 of the second lens satisfy-0.2 < CT1/f2 < 0.
23. The optical imaging lens according to claim 13, wherein a combined focal length f12 of the first lens and the second lens and a combined focal length f34 of the third lens and the fourth lens satisfy |f12/f34|+.0.3.
24. The optical imaging lens of any of claims 13 to 23, wherein a total effective focal length f of the optical imaging lens and an entrance pupil diameter EPD of the optical imaging lens satisfy f/EPD ∈1.80.
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CN105116519A (en) * 2015-09-24 2015-12-02 浙江舜宇光学有限公司 Shooting lens
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