CN108490587A - Imaging lens - Google Patents

Imaging lens Download PDF

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Publication number
CN108490587A
CN108490587A CN201810520948.8A CN201810520948A CN108490587A CN 108490587 A CN108490587 A CN 108490587A CN 201810520948 A CN201810520948 A CN 201810520948A CN 108490587 A CN108490587 A CN 108490587A
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CN
China
Prior art keywords
lens
imaging
object side
imaging lens
image side
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Granted
Application number
CN201810520948.8A
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Chinese (zh)
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CN108490587B (en
Inventor
徐标
张凯元
游兴海
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Zhejiang Sunny Optics Co Ltd
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Zhejiang Sunny Optics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Sunny Optics Co Ltd filed Critical Zhejiang Sunny Optics Co Ltd
Priority to CN201810520948.8A priority Critical patent/CN108490587B/en
Publication of CN108490587A publication Critical patent/CN108490587A/en
Priority to PCT/CN2019/077468 priority patent/WO2019228017A1/en
Application granted granted Critical
Publication of CN108490587B publication Critical patent/CN108490587B/en
Active legal-status Critical Current
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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses

Abstract

This application discloses a kind of imaging lens, which includes sequentially by object side to image side along optical axis：First lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.Wherein, the first lens have focal power；Second lens have focal power；The third lens have negative power；It is concave surface that 4th lens, which have negative power, object side, and image side surface is concave surface；5th lens have focal power；6th lens have focal power；It is convex surface that 7th lens, which have positive light coke, image side surface,；And all have airspace between two lens of arbitrary neighborhood.

Description

Imaging lens
Technical field
This application involves a kind of imaging lens, more specifically, this application involves it is a kind of include seven lens imaging lens.
Background technology
It updates with the high speed of the portable electronic products such as smart mobile phone, portable computer and tablet device, market pair It is higher and higher with the performance requirement of the matching used imaging lens of portable electronic product.In addition to requiring imaging lens to have high score Except the characteristics such as resolution, high relative luminance, while it can also require that imaging lens have the performances such as focal length.By telephoto lens and extensively The collocation of angle mirror head uses, so that imaging system has better imaging effect.Meanwhile it is gradual with high-end electronic product Thinning, the imaging lens carried also should take into account ultra-slim features while ensureing the characteristics such as high image quality, long-focus.
Invention content
This application provides be applicable to portable electronic product, can at least solve or part solve it is in the prior art The imaging lens of above-mentioned at least one disadvantage.
On the one hand, this application provides such a imaging lens, which is sequentially wrapped along optical axis by object side to image side It includes：First lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, the first lens have just Focal power or negative power；Second lens have positive light coke or negative power；The third lens can have negative power；4th thoroughly Mirror, which can have negative power, object side, to be concave surface, and image side surface can be concave surface；5th lens have positive light coke or negative light focus Degree；6th lens have positive light coke or negative power；7th lens can have positive light coke, and image side surface can be convex surface.Its In, can have airspace between two lens of arbitrary neighborhood.
In one embodiment, total effective focal length f of imaging lens and the effective focal length f1 of the first lens can meet 1.5 ＜ f/ | f1 | ＜ 3.5.
In one embodiment, the maximum angle of half field-of view HFOV of imaging lens can meet HFOV≤20 °.
In one embodiment, the curvature of the image side surface of the radius of curvature R 7 and the 4th lens of the object side of the 4th lens Radius R8 can meet 1 ＜ (R7-R8)/(R7+R8) ＜ 3.
In one embodiment, the effective focal length f1 of the first lens and the effective focal length f4 of the 4th lens can meet 1 ＜ | F4/f1 | ＜ 2.
In one embodiment, the first lens object side to imaging lens distance TTL of the imaging surface on optical axis with Total effective focal length f of imaging lens can meet TTL/f ＜ 1.
In one embodiment, the curvature of the image side surface of the radius of curvature R 1 and the third lens of the object side of the first lens Radius R6 can meet 2 ＜ | R6 |/| R1 | ＜ 3.
In one embodiment, the effective focal length f2 and the third lens of total effective focal length f of imaging lens, the second lens Effective focal length f3 can meet 0 ＜ | f/f2 |+| f/f3 | ＜ 2.
In one embodiment, the effective focal length f6 of the 6th lens and the effective focal length f7 of the 7th lens can meet -3 ＜ F6/f7 ＜ 0.
In one embodiment, total effective focal length f of imaging lens and the first lens to the 7th lens are on optical axis The sum of center thickness ∑ CT can meet 1.5 ＜ f/ ∑ CT ＜ 3.
In one embodiment, the second lens on optical axis center thickness CT2, the third lens are in the center on optical axis Thickness CT3 and the 4th lens can meet 1.5 ＜ (CT2+CT4)/CT3 ＜ 3 in the center thickness CT4 on optical axis.
In one embodiment, spacing distance T45 and the 5th lens on optical axis of the 4th lens and the 5th lens and Spacing distance T56 of 6th lens on optical axis can meet 1.5 ＜ T45/T56 ＜ 4.
On the other hand, present invention also provides such a imaging lens, the camera lens along optical axis by object side to image side according to Sequence includes：First lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, the first lens have There are positive light coke or negative power；Second lens have positive light coke or negative power；The third lens can have negative power；The Four lens, which can have negative power, object side, to be concave surface, and image side surface can be concave surface；5th lens have positive light coke or negative Focal power；6th lens have positive light coke or negative power；7th lens can have positive light coke, and image side surface can be convex Face.Wherein, the maximum angle of half field-of view HFOV of imaging lens can meet HFOV≤20 °.
Another aspect, present invention also provides such a imaging lens, the camera lens along optical axis by object side to image side according to Sequence includes：First lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, the first lens have There are positive light coke or negative power；Second lens have positive light coke or negative power；The third lens can have negative power；The Four lens, which can have negative power, object side, to be concave surface, and image side surface can be concave surface；5th lens have positive light coke or negative Focal power；6th lens have positive light coke or negative power；7th lens can have positive light coke, and image side surface can be convex Face.Wherein, the radius of curvature R 8 of the image side surface of the radius of curvature R 7 and the 4th lens of the object side of the 4th lens can meet 1 ＜ (R7-R8)/(R7+R8) ＜ 3.
Another aspect, present invention also provides such a imaging lens, the camera lens along optical axis by object side to image side according to Sequence includes：First lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, the first lens have There are positive light coke or negative power；Second lens have positive light coke or negative power；The third lens can have negative power；The Four lens, which can have negative power, object side, to be concave surface, and image side surface can be concave surface；5th lens have positive light coke or negative Focal power；6th lens have positive light coke or negative power；7th lens can have positive light coke, and image side surface can be convex Face.Wherein, the effective focal length f1 of the first lens and the effective focal length f4 of the 4th lens can meet 1 ＜ | f4/f1 | ＜ 2.
Another aspect, present invention also provides such a imaging lens, the camera lens along optical axis by object side to image side according to Sequence includes：First lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, the first lens have There are positive light coke or negative power；Second lens have positive light coke or negative power；The third lens can have negative power；The Four lens, which can have negative power, object side, to be concave surface, and image side surface can be concave surface；5th lens have positive light coke or negative Focal power；6th lens have positive light coke or negative power；7th lens can have positive light coke, and image side surface can be convex Face.Wherein, the first lens object side to distance TTL and imaging lens of the imaging surface on optical axis of imaging lens total effective coke It can meet TTL/f ＜ 1 away from f.
Another aspect, present invention also provides such a imaging lens, the camera lens along optical axis by object side to image side according to Sequence includes：First lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, the first lens have There are positive light coke or negative power；Second lens have positive light coke or negative power；The third lens can have negative power；The Four lens, which can have negative power, object side, to be concave surface, and image side surface can be concave surface；5th lens have positive light coke or negative Focal power；6th lens have positive light coke or negative power；7th lens can have positive light coke, and image side surface can be convex Face.Wherein, the radius of curvature R 6 of the image side surface of the radius of curvature R 1 and the third lens of the object side of the first lens can meet 2 ＜ | R6 |/| R1 | ＜ 3.
Another aspect, present invention also provides such a imaging lens, the camera lens along optical axis by object side to image side according to Sequence includes：First lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, the first lens have There are positive light coke or negative power；Second lens have positive light coke or negative power；The third lens can have negative power；The Four lens, which can have negative power, object side, to be concave surface, and image side surface can be concave surface；5th lens have positive light coke or negative Focal power；6th lens have positive light coke or negative power；7th lens can have positive light coke, and image side surface can be convex Face.Wherein, the effective focal length f6 of the 6th lens and the effective focal length f7 of the 7th lens can meet -3 ＜ f6/f7 ＜ 0.
Another aspect, present invention also provides such a imaging lens, the camera lens along optical axis by object side to image side according to Sequence includes：First lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, the first lens have There are positive light coke or negative power；Second lens have positive light coke or negative power；The third lens can have negative power；The Four lens, which can have negative power, object side, to be concave surface, and image side surface can be concave surface；5th lens have positive light coke or negative Focal power；6th lens have positive light coke or negative power；7th lens can have positive light coke, and image side surface can be convex Face.Wherein, total effective focal length f of imaging lens and the first lens to the 7th lens can in the sum of center thickness on optical axis ∑ CT Meet 1.5 ＜ f/ ∑ CT ＜ 3.
Another aspect, present invention also provides such a imaging lens, the camera lens along optical axis by object side to image side according to Sequence includes：First lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, the first lens have There are positive light coke or negative power；Second lens have positive light coke or negative power；The third lens can have negative power；The Four lens, which can have negative power, object side, to be concave surface, and image side surface can be concave surface；5th lens have positive light coke or negative Focal power；6th lens have positive light coke or negative power；7th lens can have positive light coke, and image side surface can be convex Face.Wherein, the spacing distance T45 and the 5th lens and the 6th lens of the 4th lens and the 5th lens on optical axis are on optical axis Spacing distance T56 can meet 1.5 ＜ T45/T56 ＜ 4.
The application uses seven lens, passes through each power of lens of reasonable distribution, the center thickness of face type, each lens And spacing etc. on the axis between each lens so that above-mentioned imaging lens have long-focus, ultra-thin, superior image quality, muting sensitive At least one advantageous effect such as perception.
Description of the drawings
In conjunction with attached drawing, by the detailed description of following non-limiting embodiment, other features of the application, purpose and excellent Point will be apparent.In the accompanying drawings：
Fig. 1 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 1；
Fig. 2A to Fig. 2 D respectively illustrates chromatic curve on the axis of the imaging lens of embodiment 1, astigmatism curve, distortion curve And ratio chromatism, curve；
Fig. 3 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 2；
Fig. 4 A to Fig. 4 D respectively illustrate chromatic curve on the axis of the imaging lens of embodiment 2, astigmatism curve, distortion curve And ratio chromatism, curve；
Fig. 5 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 3；
Fig. 6 A to Fig. 6 D respectively illustrate chromatic curve on the axis of the imaging lens of embodiment 3, astigmatism curve, distortion curve And ratio chromatism, curve；
Fig. 7 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 4；
Fig. 8 A to Fig. 8 D respectively illustrate chromatic curve on the axis of the imaging lens of embodiment 4, astigmatism curve, distortion curve And ratio chromatism, curve；
Fig. 9 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 5；
Figure 10 A to Figure 10 D respectively illustrate chromatic curve on the axis of the imaging lens of embodiment 5, astigmatism curve, distortion song Line and ratio chromatism, curve；
Figure 11 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 6；
Figure 12 A to Figure 12 D respectively illustrate chromatic curve on the axis of the imaging lens of embodiment 6, astigmatism curve, distortion song Line and ratio chromatism, curve；
Figure 13 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 7；
Figure 14 A to Figure 14 D respectively illustrate chromatic curve on the axis of the imaging lens of embodiment 7, astigmatism curve, distortion song Line and ratio chromatism, curve；
Figure 15 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 8；
Figure 16 A to Figure 16 D respectively illustrate chromatic curve on the axis of the imaging lens of embodiment 8, astigmatism curve, distortion song Line and ratio chromatism, curve；
Figure 17 shows the structural schematic diagrams according to the imaging lens of the embodiment of the present application 9；
Figure 18 A to Figure 18 D respectively illustrate chromatic curve on the axis of the imaging lens of embodiment 9, astigmatism curve, distortion song Line and ratio chromatism, curve；
Figure 19 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 10；
Figure 20 A to Figure 20 D respectively illustrate chromatic curve on the axis of the imaging lens of embodiment 10, astigmatism curve, distortion Curve and ratio chromatism, curve.
Specific implementation mode
Refer to the attached drawing is made more detailed description by the application in order to better understand to the various aspects of the application.It answers Understand, the description of the only illustrative embodiments to the application is described in detail in these, rather than limits the application in any way Range.In the specification, the identical element of identical reference numbers.It includes associated institute to state "and/or" Any and all combinations of one or more of list of items.
It should be noted that in the present specification, first, second, third, etc. statement is only used for a feature and another spy Sign distinguishes, and does not indicate that any restrictions to feature.Therefore, without departing substantially from teachings of the present application, hereinafter The first lens discussed are also known as the second lens or the third lens.
In the accompanying drawings, for convenience of description, thickness, the size and shape of lens are slightly exaggerated.Specifically, attached drawing Shown in spherical surface or aspherical shape be illustrated by way of example.That is, spherical surface or aspherical shape are not limited to attached drawing Shown in spherical surface or aspherical shape.Attached drawing is merely illustrative and and non-critical drawn to scale.
Herein, near axis area refers to the region near optical axis.If lens surface is convex surface and does not define convex surface position When setting, then it represents that the lens surface is convex surface near axis area is less than；If lens surface is concave surface and does not define the concave surface position When, then it represents that the lens surface is concave surface near axis area is less than.Each lens are known as the object of the lens close to the surface of object side Side, each lens are known as the image side surface of the lens close to the surface of image side.
It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory It indicates there is stated feature, element and/or component when being used in bright book, but does not preclude the presence or addition of one or more Other feature, component, assembly unit and/or combination thereof.In addition, ought the statement of such as at least one of " ... " appear in institute When after the list of row feature, entire listed feature is modified, rather than modifies the individual component in list.In addition, when describing this When the embodiment of application, " one or more embodiments of the application " are indicated using "available".Also, term " illustrative " It is intended to refer to example or illustration.
Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein all have with The application one skilled in the art's is generally understood identical meaning.It will also be appreciated that term (such as in everyday words Term defined in allusion quotation) it should be interpreted as having the meaning consistent with their meanings in the context of the relevant technologies, and It will not be explained with idealization or excessively formal sense, unless clear herein so limit.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The feature of the application, principle and other aspects are described in detail below.
It may include such as seven lens with focal power according to the imaging lens of the application illustrative embodiments, that is, First lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.This seven lens edges Optical axis by object side to image side sequential, can have airspace between each adjacent lens.
In the exemplary embodiment, the first lens have positive light coke or negative power；Second lens have positive light focus Degree or negative power；The third lens can have negative power；It can be concave surface that 4th lens, which can have negative power, object side, Image side surface can be concave surface；5th lens have positive light coke or negative power；6th lens have positive light coke or negative power； 7th lens can have positive light coke, and image side surface can be convex surface.
First lens have positive light coke or negative power；Second lens have positive light coke or negative power；Third is saturating Mirror can have negative power.It, can active balance by reasonably controlling the focal power of the first lens, the second lens and the third lens The low order aberration of system makes system have good image quality.Further, the first lens can have positive light coke, second Lens can have negative power.
In the exemplary embodiment, the object side of the first lens can be convex surface.
In the exemplary embodiment, the image side surface of the third lens can be concave surface.
The object side of 4th lens and image side surface can be concave surface.Such face type be provided with conducive to adjustment light incidence and It is emitted the angle of the 4th lens, system sensitivity can be effectively reduced, makes system that there are good processing characteristics.
5th lens have positive light coke or negative power；6th lens have positive light coke or negative power；7th thoroughly Mirror can have positive light coke.By the reasonably combined of the 5th lens, the 6th lens and the 7th lens, can be conducive to balance preceding group it is saturating The higher order aberratons that mirror generates so that system each visual field has smaller aberration, and can be conducive to the chief ray and image planes of system Matching.Further, the 6th lens can have negative power.
In the exemplary embodiment, the imaging lens of the application can meet 1.5 ＜ f/ of conditional | f1 | ＜ 3.5, wherein F is total effective focal length of imaging lens, and f1 is the effective focal length of the first lens.More specifically, f and f1 can further meet 2.4 ≤ f/ | f1 |≤2.8, for example, 2.49≤f/ | and f1 |≤2.65.By rationally controlling the effective focal length of the first lens, its production can be made Raw negative spherical aberration is balanced with the positive spherical aberration generated with other eyeglasses, to make system have good image quality on axis.
In the exemplary embodiment, the imaging lens of the application can meet conditional HFOV≤20 °, wherein HFOV is The maximum angle of half field-of view of imaging lens.More specifically, HFOV can further meet 18 °≤HFOV≤19 °, such as HFOV= 18.1°.It, can be with by controlling the field angles of imaging lens in the range of less than 40 ° in the case where ensureing that image height is certain So that system has larger focal length, the characteristic of focal length is realized.
In the exemplary embodiment, the imaging lens of the application can meet 1 ＜ of conditional (R7-R8)/(R7+R8) ＜ 3, Wherein, R7 is the radius of curvature of the object side of the 4th lens, and R8 is the radius of curvature of the image side surface of the 4th lens.More specifically, R7 and R8 can further meet 1.5≤(R7-R8)/(R7+R8)≤2.5, such as 1.90≤(R7-R8)/(R7+R8)≤2.29. By rationally controlling the radius of curvature of the object side and image side surface of the 4th lens, the object side of the 4th lens can be efficiently controlled With the astigmatism contribution amount of image side surface, and then effective and reasonable the image quality for controlling intermediate visual field and aperture band.
In the exemplary embodiment, the imaging lens of the application can meet 1.5 ＜ f/ ∑ CT ＜ 3 of conditional, wherein f For total effective focal length of imaging lens, ∑ CT is the first lens to the 7th lens respectively at the sum of the center thickness on optical axis.More Specifically, f and ∑ CT can further meet 2.0≤f/ ∑s CT≤2.5, for example, 2.16≤f/ ∑s CT≤2.26.By control at As the summation of each lens thickness in camera lens, it is capable of the distortion range of reasonably control system, makes system that there is smaller distortion.
In the exemplary embodiment, the imaging lens of the application can meet 1 ＜ of conditional | f4/f1 | ＜ 2, wherein f1 For the effective focal length of the first lens, f4 is the effective focal length of the 4th lens.More specifically, f1 and f4 can further meet 1 ＜ | F4/f1 | ＜ 1.5, such as 1.14≤| f4/f1 |≤1.40.By constraining the effective focal length of the first lens and the 4th lens, can incite somebody to action The spherical aberration contribution amount of 4th lens controls in reasonable range so that visual field obtains good image quality on axis.
In the exemplary embodiment, the imaging lens of the application can meet 1.5 ＜ of conditional (CT2+CT4)/CT3 ＜ 3, Wherein, CT2 is the second lens in the center thickness on optical axis, and CT3 is the third lens in the center thickness on optical axis, CT4 the Four lens are in the center thickness on optical axis.More specifically, CT2, CT3 and CT4 can further meet 2.0≤(CT2+CT4)/CT3 ≤ 2.3, for example, 2.05≤(CT2+CT4)/CT3≤2.14.Meet 1.5 ＜ of conditional (CT2+CT4)/CT3 ＜ 3, it can be by second Lens, the third lens and the 4th lens are constrained in the center thickness on optical axis in certain reasonable range, to meet processing While performance, it is ensured that the ultra-slim features of system.
In the exemplary embodiment, the imaging lens of the application can meet conditional TTL/f ＜ 1, wherein TTL Distance on the object side of one lens to the axis of the imaging surface of imaging lens, f are total effective focal length of imaging lens.More specifically, TTL and f can further meet 0.85≤TTL/f≤0.90, for example, TTL/f=0.88.Meet conditional TTL/f ＜ 1, can incite somebody to action Distance and total effective focal length of imaging lens constrain in certain zone of reasonableness on first lens object side to the axis of imaging surface, both The excellent image quality that can ensure that optical system also ensures that system has good processability.
In the exemplary embodiment, the imaging lens of the application can meet 2 ＜ of conditional | R6 |/| R1 | ＜ 3, wherein R1 is the radius of curvature of the object side of the first lens, and R6 is the radius of curvature of the image side surface of the third lens.More specifically, R1 and R6 It can further meet 2.30≤| R6 |/| R1 | ＜ 3, for example, 2.42≤| R6 |/| R1 |≤2.90.By constraining the first lens The range of the radius of curvature of object side and the radius of curvature of the image side surface of the third lens, can be by the intelligent of the first lens and the third lens Poor contribution rate control in the reasonable scope, and then can preferably balance the coma of preceding group of lens generation, to obtain good imaging Quality.
In the exemplary embodiment, the imaging lens of the application can meet 1.5 ＜ T45/T56 ＜ 4 of conditional, wherein T45 is the spacing distance of the 4th lens and the 5th lens on optical axis, T56 be the 5th lens and the 6th lens on optical axis between Gauge from.More specifically, T45 and T56 can further meet 2.0≤T45/T56≤3.7, such as 2.11≤T45/T56≤ 3.52.By the 4th lens of constraint to the air gap between the 6th lens, the field that preceding group of lens of imaging lens can be made to generate The curvature of field that Qu Yuhou group lens generate is balanced, to make system have the rational curvature of field.
In the exemplary embodiment, the imaging lens of the application can meet 0 ＜ of conditional | f/f2 |+| f/f3 | ＜ 2, In, f is total effective focal length of imaging lens, and f2 is the effective focal length of the second lens, and f3 is the effective focal length of the third lens.More Body, f, f2 and f3 can further meet 0.5≤| f/f2 |+| f/f3 |≤1.5, such as 0.88≤| f/f2 |+| f/f3 |≤ 1.12.By constrain the second lens and the third lens effective focal length, can proper restraint the second lens and the third lens spherical aberration And coma, make system that there is smaller aberration and good image quality.
In the exemplary embodiment, the imaging lens of the application can meet -3 ＜ f6/f7 ＜ 0 of conditional, wherein f6 is The effective focal length of 6th lens, f7 are the effective focal length of the 7th lens.More specifically, f6 and f7 can further meet -2.90≤ F6/f7≤- 0.70, for example, -2.83≤f6/f7≤- 0.80.By by the light focus of the 6th power of lens and the 7th lens Degree constraint in the reasonable scope, can make the 6th lens and the 7th lens that there is rational three ranks positive spherical aberration contribution amount and five ranks to bear ball Poor contribution amount range, so as to balance the residual spherical aberration of preceding group of lens generation, so that field of view on the axis of imaging lens Image quality reach preferable level.
In the exemplary embodiment, above-mentioned imaging lens may also include at least one diaphragm, to promote the imaging of camera lens Quality.Optionally, diaphragm may be provided between object side and the first lens.
Optionally, above-mentioned imaging lens may also include the optical filter for correcting color error ratio and/or be located at for protecting The protective glass of photosensitive element on imaging surface.
Multi-disc eyeglass, such as described above seven can be used according to the imaging lens of the above embodiment of the application. By each power of lens of reasonable distribution, face type, each lens center thickness and each lens between axis on spacing etc., can The volume for effectively reducing camera lens, the machinability for reducing the susceptibility of camera lens and improving camera lens so that imaging lens are more advantageous In producing and processing and be applicable to portable electronic product.Can also have ultra-thin, focal length by the imaging lens of above-mentioned configuration Away from the advantageous effects such as, superior image quality and hyposensitivity.
In presently filed embodiment, at least one of minute surface of each lens is aspherical mirror.Non-spherical lens The characteristics of be：From lens centre to lens perimeter, curvature is consecutive variations.It is constant with having from lens centre to lens perimeter The spherical lens of curvature is different, and non-spherical lens has more preferably radius of curvature characteristic, and there is improvement to distort aberration and improve picture The advantages of dissipating aberration.After non-spherical lens, the aberration occurred when imaging can be eliminated as much as possible, so as to improve Image quality.
However, it will be understood by those of skill in the art that without departing from this application claims technical solution the case where Under, the lens numbers for constituting imaging lens can be changed, to obtain each result and advantage described in this specification.Though for example, It is so described by taking seven lens as an example in embodiments, but the imaging lens are not limited to include seven lens.If It needs, which may also include the lens of other quantity.
The specific embodiment for the imaging lens for being applicable to the above embodiment is further described with reference to the accompanying drawings.
Embodiment 1
Referring to Fig. 1 to Fig. 2 D descriptions according to the imaging lens of the embodiment of the present application 1.Fig. 1 is shown according to the application The structural schematic diagram of the imaging lens of embodiment 1.
As shown in Figure 1, sequentially being wrapped by object side to image side along optical axis according to the imaging lens of the application illustrative embodiments It includes：Diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, optical filter E8 and imaging surface S17.
It is convex surface that first lens E1, which has positive light coke, object side S1, and image side surface S2 is convex surface.Second lens E2 has Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.It is concave surface that 4th lens E4, which has negative power, object side S7, and image side surface S8 is concave surface.The It is convex surface that five lens E5, which have positive light coke, object side S9, and image side surface S10 is convex surface.6th lens E6 has negative power, Its object side S11 is concave surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has positive light coke, object side S13, as Side S14 is convex surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 1 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the imaging lens of embodiment 1 Coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 1
As shown in Table 1, the object side of any one lens in the first lens E1 to the 7th lens E7 and image side surface are It is aspherical.In the present embodiment, the face type x of each non-spherical lens is available but is not limited to following aspherical formula and is defined：
Wherein, x be it is aspherical along optical axis direction when being highly the position of h, away from aspheric vertex of surface apart from rise；C is Aspherical paraxial curvature, c=1/R (that is, paraxial curvature c is the inverse of 1 mean curvature radius R of upper table)；K be circular cone coefficient ( It has been provided in table 1)；Ai is the correction factor of aspherical i-th-th ranks.The following table 2 give can be used for it is each aspherical in embodiment 1 The high-order coefficient A of minute surface S1-S144、A6、A8、A10、A12、A14、A16、A18And A20。
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.9600E-02 -3.5095E-02 2.3039E-01 -7.4523E-01 1.5248E+00 -1.9609E+00 1.5169E+00 -6.4437E-01 1.1332E-01
S2 -1.0499E-01 2.1871E-01 1.7789E-01 -1.7749E+00 3.6953E+00 -3.7045E+00 1.7567E+00 -2.2120E-01 -6.2422E-02
S3 -1.4055E-01 2.8531E-01 1.0093E+00 -6.4578E+00 1.4644E+01 -1.5769E+01 6.4763E+00 1.3604E+00 -1.3766E+00
S4 -9.8949E-03 1.1966E-02 3.0907E-01 2.4523E+00 -3.1293E+01 1.2071E+02 -2.1940E+02 1.9136E+02 -6.3590E+01
S5 4.4485E-02 -1.1898E-01 -1.1244E+00 1.7341E+01 -1.0319E+02 3.3273E+02 -5.9888E+02 5.5934E+02 -2.0874E+02
S6 -1.2494E-02 5.5449E-01 -4.9681E+00 3.9806E+01 -1.9429E+02 5.8306E+02 -1.0658E+03 1.0636E+03 -4.3323E+02
S7 -1.6101E-01 1.7170E-01 2.2845E+00 -2.1137E+01 8.6120E+01 -2.1633E+02 3.2441E+02 -2.8639E+02 1.3085E+02
S8 -3.9427E-02 3.8645E-01 -3.6825E-01 -3.5343E+00 1.9085E+01 -5.5148E+01 9.3145E+01 -8.2516E+01 2.9300E+01
S9 -1.0720E-01 4.4637E-02 6.1201E-02 -1.8811E-01 3.0263E-01 -2.6687E-01 1.2778E-01 -3.1250E-02 3.0512E-03
S10 -1.2878E-01 1.0474E-01 -4.7080E-02 -4.3211E-03 3.3837E-02 -2.3658E-02 7.2671E-03 -1.0641E-03 6.0728E-05
S11 -5.2930E-02 2.7411E-01 -5.2977E-01 6.2255E-01 -4.7441E-01 2.2448E-01 -6.2289E-02 9.2173E-03 -5.6015E-04
S12 3.6712E-02 1.7001E-01 -5.1771E-01 6.8643E-01 -5.4196E-01 2.6685E-01 -8.0172E-02 1.3368E-02 -9.4135E-04
S13 4.9217E-02 -2.0533E-02 -6.4715E-02 1.0060E-01 -7.2552E-02 3.1528E-02 -8.3864E-03 1.2510E-03 -7.9777E-05
S14 -1.9502E-02 -8.1754E-03 -8.7404E-03 1.5619E-02 -1.0669E-02 4.3238E-03 -1.0081E-03 1.2089E-04 -5.6401E-06
Table 2
Table 3 provide effective pixel area diagonal line length on the imaging surface S17 of imaging lens in embodiment 1 half ImgH, Optics total length TTL (that is, distance from the object side S1 of the first lens E1 to imaging surface S17 on optical axis), maximum half field-of-view The effective focal length f1 to f7 of angle HFOV, F-number Fno, total effective focal length f and each lens.
ImgH(mm) 1.98 f2(mm) -12.84
TTL(mm) 5.17 f3(mm) -10.65
HFOV(°) 18.1 f4(mm) -2.67
Fno 2.82 f5(mm) 12.28
f(mm) 5.90 f6(mm) -9.03
f1(mm) 2.29 f7(mm) 8.66
Table 3
Imaging lens in embodiment 1 meet：
F/ | f1 |=2.57, wherein f is total effective focal length of imaging lens, and f1 is the effective focal length of the first lens E1；
HFOV=18.1 °, wherein HFOV is the maximum angle of half field-of view of imaging lens；
(R7-R8)/(R7+R8)=1.91, wherein R7 is the radius of curvature of the object side S7 of the 4th lens E4, R8 the The radius of curvature of the image side surface S8 of four lens E4；
F/ ∑s CT=2.18, wherein f is total effective focal length of imaging lens, and ∑ CT is the first lens E1 to the 7th lens E7 is in the sum of the center thickness on optical axis；
| f4/f1 |=1.16, wherein f1 is the effective focal length of the first lens E1, and f4 is the effective focal length of the 4th lens E4；
(CT2+CT4)/CT3=2.05, wherein CT2 be the second lens E2 in the center thickness on optical axis, CT3 is third For lens E3 in the center thickness on optical axis, CT4 is the 4th lens E4 in the center thickness on optical axis；
TTL/f=0.88, wherein TTL is distances of the first lens E1 objects side S1 to imaging surface S17 on optical axis, and f is Total effective focal length of imaging lens；
| R6 |/| R1 |=2.62, wherein R1 is the radius of curvature of the object side S1 of the first lens E1, and R6 is the third lens The radius of curvature of the image side surface S6 of E3；
T45/T56=3.40, wherein T45 is spacing distances of the 4th lens E4 and the 5th lens E5 on optical axis, T56 For the spacing distance of the 5th lens E5 and the 6th lens E6 on optical axis；
| f/f2 |+| f/f3 |=1.01, wherein f is total effective focal length of imaging lens, and f2 is the effective of the second lens E2 Focal length, f3 are the effective focal length of the third lens E3；
F6/f7=-1.04, wherein f6 is the effective focal length of the 6th lens E6, and f7 is the effective focal length of the 7th lens E7.
Fig. 2A shows chromatic curve on the axis of the imaging lens of embodiment 1, indicates the light of different wave length via mirror Converging focal point after head deviates.Fig. 2 B show the astigmatism curve of the imaging lens of embodiment 1, indicate meridianal image surface bending and Sagittal image surface is bent.Fig. 2 C show the distortion curve of the imaging lens of embodiment 1, indicate the distortion corresponding to different image heights Sizes values.Fig. 2 D show the ratio chromatism, curve of the imaging lens of embodiment 1, indicate light via after camera lens in imaging surface On different image heights deviation.According to fig. 2 A to Fig. 2 D it is found that the imaging lens given by embodiment 1 can realize it is good Image quality.
Embodiment 2
Referring to Fig. 3 to Fig. 4 D descriptions according to the imaging lens of the embodiment of the present application 2.In the present embodiment and following implementation In example, for brevity, by clipped description similar to Example 1.Fig. 3 show according to the embodiment of the present application 2 at As the structural schematic diagram of camera lens.
As shown in figure 3, sequentially being wrapped by object side to image side along optical axis according to the imaging lens of the application illustrative embodiments It includes：Diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, optical filter E8 and imaging surface S17.
It is convex surface that first lens E1, which has positive light coke, object side S1, and image side surface S2 is convex surface.Second lens E2 has Negative power, object side S3 are concave surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.It is concave surface that 4th lens E4, which has negative power, object side S7, and image side surface S8 is concave surface.The It is concave surface that five lens E5, which have positive light coke, object side S9, and image side surface S10 is convex surface.6th lens E6 has negative power, Its object side S11 is concave surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has positive light coke, object side S13, as Side S14 is convex surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 4 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the imaging lens of embodiment 2 Coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 4
As shown in Table 4, in example 2, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 5 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 2, wherein each non- Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.9860E-02 -3.6579E-02 2.3219E-01 -7.3231E-01 1.4598E+00 -1.8261E+00 1.3696E+00 -5.6047E-01 9.3578E-02
S2 -1.0130E-01 1.9627E-01 2.3277E-01 -1.8439E+00 3.7616E+00 -3.7944E+00 1.8677E+00 -2.9527E-01 -4.3301E-02
S3 -1.3578E-01 2.4643E-01 1.1311E+00 -6.6735E+00 1.4911E+01 -1.6026E+01 6.6393E+00 1.3121E+00 -1.3754E+00
S4 -8.5177E-03 1.1205E-02 1.9879E-01 3.5211E+00 -3.6350E+01 1.3436E+02 -2.4028E+02 2.0798E+02 -6.8864E+01
S5 3.7569E-02 -5.6879E-02 -1.5646E+00 2.0217E+01 -1.1686E+02 3.7314E+02 -6.6824E+02 6.2238E+02 -2.3211E+02
S6 -2.3670E-02 6.7768E-01 -6.1262E+00 4.8424E+01 -2.3694E+02 7.1542E+02 -1.3105E+03 1.3092E+03 -5.3596E+02
S7 -1.5703E-01 2.1531E-01 1.6104E+00 -1.5886E+01 6.0075E+01 -1.3466E+02 1.7090E+02 -1.2916E+02 6.3099E+01
S8 -2.9730E-02 3.6718E-01 -3.4136E-01 -3.8892E+00 2.1084E+01 -6.0566E+01 1.0117E+02 -8.8961E+01 3.1525E+01
S9 -1.0008E-01 5.9529E-02 8.8061E-03 -1.2677E-01 2.3497E-01 -1.9457E-01 7.8866E-02 -1.4106E-02 6.5594E-04
S10 -1.1695E-01 1.3650E-01 -1.5326E-01 1.0037E-01 -1.9013E-02 -8.1693E-03 4.5901E-03 -8.0991E-04 5.0484E-05
S11 -4.9057E-02 3.2762E-01 -7.3236E-01 8.7009E-01 -6.2073E-01 2.7039E-01 -6.9664E-02 9.6978E-03 -5.6064E-04
S12 2.5059E-02 2.2253E-01 -6.6049E-01 8.5230E-01 -6.4501E-01 3.0407E-01 -8.7966E-02 1.4234E-02 -9.7978E-04
S13 4.0566E-02 5.7924E-03 -9.9147E-02 1.2552E-01 -8.2062E-02 3.2972E-02 -8.2250E-03 1.1681E-03 -7.1933E-05
S14 -2.3755E-02 -3.5697E-03 -1.0966E-02 2.0261E-02 -1.6058E-02 7.5238E-03 -2.0584E-03 3.0280E-04 -1.8634E-05
Table 5
Table 6 provide effective pixel area diagonal line length on the imaging surface S17 of imaging lens in embodiment 2 half ImgH, Optics total length TTL, maximum angle of half field-of view HFOV, F-number Fno, total effective focal length f and each lens effective focal length f1 extremely f7。
ImgH(mm) 1.98 f2(mm) -12.06
TTL(mm) 5.17 f3(mm) -10.65
HFOV(°) 18.1 f4(mm) -2.64
Fno 2.82 f5(mm) 11.39
f(mm) 5.91 f6(mm) -8.95
f1(mm) 2.28 f7(mm) 8.69
Table 6
Fig. 4 A show chromatic curve on the axis of the imaging lens of embodiment 2, indicate the light of different wave length via mirror Converging focal point after head deviates.Fig. 4 B show the astigmatism curve of the imaging lens of embodiment 2, indicate meridianal image surface bending and Sagittal image surface is bent.Fig. 4 C show the distortion curve of the imaging lens of embodiment 2, indicate the distortion corresponding to different image heights Sizes values.Fig. 4 D show the ratio chromatism, curve of the imaging lens of embodiment 2, indicate light via after camera lens in imaging surface On different image heights deviation.According to Fig. 4 A to Fig. 4 D it is found that the imaging lens given by embodiment 2 can realize it is good Image quality.
Embodiment 3
The imaging lens according to the embodiment of the present application 3 are described referring to Fig. 5 to Fig. 6 D.Fig. 5 is shown according to this Shen Please embodiment 3 imaging lens structural schematic diagram.
As shown in figure 5, sequentially being wrapped by object side to image side along optical axis according to the imaging lens of the application illustrative embodiments It includes：Diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, optical filter E8 and imaging surface S17.
It is convex surface that first lens E1, which has positive light coke, object side S1, and image side surface S2 is concave surface.Second lens E2 has Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.It is concave surface that 4th lens E4, which has negative power, object side S7, and image side surface S8 is concave surface.The It is convex surface that five lens E5, which have positive light coke, object side S9, and image side surface S10 is convex surface.6th lens E6 has negative power, Its object side S11 is concave surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has positive light coke, object side S13, as Side S14 is convex surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 7 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the imaging lens of embodiment 3 Coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 7
As shown in Table 7, in embodiment 3, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 8 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 3, wherein each non- Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.9884E-02 -3.2914E-02 2.2556E-01 -7.3972E-01 1.5457E+00 -2.0396E+00 1.6282E+00 -7.1857E-01 1.3255E-01
S2 -1.1165E-01 2.1822E-01 4.0725E-01 -2.9758E+00 6.7107E+00 -8.1151E+00 5.6155E+00 -2.1030E+00 3.3291E-01
S3 -1.4789E-01 2.8425E-01 1.3857E+00 -8.7858E+00 2.1788E+01 -2.8890E+01 2.1120E+01 -7.7710E+00 1.0593E+00
S4 -7.9306E-03 -7.8934E-03 8.3346E-01 -1.8154E+00 -1.2301E+01 7.0633E+01 -1.4214E+02 1.2734E+02 -4.1780E+01
S5 6.0281E-02 -2.6021E-01 8.0080E-02 8.0986E+00 -5.6496E+01 1.9141E+02 -3.5008E+02 3.2397E+02 -1.1639E+02
S6 1.3121E-03 3.4606E-01 -3.4152E+00 2.8047E+01 -1.3047E+02 3.6996E+02 -6.4595E+02 6.1568E+02 -2.3430E+02
S7 -1.7299E-01 7.7253E-02 3.2033E+00 -2.7306E+01 1.1787E+02 -3.2119E+02 5.3083E+02 -5.0443E+02 2.2523E+02
S8 -4.8886E-02 3.7576E-01 -2.5831E-01 -3.3445E+00 1.7105E+01 -4.9713E+01 8.5513E+01 -7.6903E+01 2.7560E+01
S9 -1.0711E-01 1.0470E-02 1.4393E-01 -2.7586E-01 3.7110E-01 -3.1859E-01 1.5826E-01 -4.1508E-02 4.4634E-03
S10 -1.3210E-01 5.0911E-02 7.6613E-02 -1.0991E-01 8.0698E-02 -3.5565E-02 9.0095E-03 -1.1998E-03 6.5023E-05
S11 -4.5614E-02 2.1585E-01 -4.0796E-01 5.2033E-01 -4.3145E-01 2.1541E-01 -6.1602E-02 9.2697E-03 -5.6870E-04
S12 5.6503E-02 1.3538E-01 -4.7260E-01 6.4604E-01 -5.1302E-01 2.5142E-01 -7.5026E-02 1.2448E-02 -8.7455E-04
S13 5.6658E-02 -3.4404E-02 -6.0587E-02 1.0087E-01 -7.1975E-02 3.0868E-02 -8.1922E-03 1.2318E-03 -7.9648E-05
S14 -1.5716E-02 -1.1258E-02 -1.3624E-02 2.1766E-02 -1.3259E-02 4.3918E-03 -6.9803E-04 2.3963E-05 3.6041E-06
Table 8
Table 9 provide effective pixel area diagonal line length on the imaging surface S17 of imaging lens in embodiment 3 half ImgH, Optics total length TTL, maximum angle of half field-of view HFOV, F-number Fno, total effective focal length f and each lens effective focal length f1 extremely f7。
Table 9
Fig. 6 A show chromatic curve on the axis of the imaging lens of embodiment 3, indicate the light of different wave length via mirror Converging focal point after head deviates.Fig. 6 B show the astigmatism curve of the imaging lens of embodiment 3, indicate meridianal image surface bending and Sagittal image surface is bent.Fig. 6 C show the distortion curve of the imaging lens of embodiment 3, indicate the distortion corresponding to different image heights Sizes values.Fig. 6 D show the ratio chromatism, curve of the imaging lens of embodiment 3, indicate light via after camera lens in imaging surface On different image heights deviation.According to Fig. 6 A to Fig. 6 D it is found that the imaging lens given by embodiment 3 can realize it is good Image quality.
Embodiment 4
The imaging lens according to the embodiment of the present application 4 are described referring to Fig. 7 to Fig. 8 D.Fig. 7 is shown according to this Shen Please embodiment 4 imaging lens structural schematic diagram.
As shown in fig. 7, sequentially being wrapped by object side to image side along optical axis according to the imaging lens of the application illustrative embodiments It includes：Diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, optical filter E8 and imaging surface S17.
It is convex surface that first lens E1, which has positive light coke, object side S1, and image side surface S2 is convex surface.Second lens E2 has Negative power, object side S3 are concave surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.It is concave surface that 4th lens E4, which has negative power, object side S7, and image side surface S8 is concave surface.The It is convex surface that five lens E5, which have positive light coke, object side S9, and image side surface S10 is convex surface.6th lens E6 has negative power, Its object side S11 is concave surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has positive light coke, object side S13, as Side S14 is convex surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 10 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens of embodiment 4 Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 10
As shown in Table 10, in example 4, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 11 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 4, wherein each Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.9950E-02 -3.5049E-02 2.3288E-01 -7.6597E-01 1.5954E+00 -2.0937E+00 1.6631E+00 -7.3285E-01 1.3582E-01
S2 -1.1698E-01 3.0068E-01 -1.2069E-01 -1.0905E+00 2.7291E+00 -2.9527E+00 1.5375E+00 -2.8789E-01 -1.7850E-02
S3 -1.5575E-01 3.9369E-01 6.3915E-01 -5.8574E+00 1.4938E+01 -1.8974E+01 1.2238E+01 -3.1881E+00 3.1227E-03
S4 -8.3328E-03 -9.3056E-03 7.6655E-01 -1.4183E+00 -1.3502E+01 7.3078E+01 -1.4570E+02 1.3056E+02 -4.3010E+01
S5 6.0238E-02 -2.7030E-01 4.1233E-02 1.0531E+01 -7.5595E+01 2.5977E+02 -4.8040E+02 4.5303E+02 -1.6884E+02
S6 -1.0447E-02 4.7294E-01 -4.4948E+00 3.7417E+01 -1.8400E+02 5.5072E+02 -9.9878E+02 9.8473E+02 -3.9450E+02
S7 -1.7217E-01 1.3677E-01 2.4435E+00 -1.9952E+01 7.3097E+01 -1.6187E+02 2.0607E+02 -1.5430E+02 7.1113E+01
S8 -4.5538E-02 3.3254E-01 2.3232E-01 -6.4716E+00 2.8202E+01 -7.2882E+01 1.1357E+02 -9.4929E+01 3.2268E+01
S9 -1.1240E-01 5.6211E-03 1.8521E-01 -3.6786E-01 5.0395E-01 -4.4186E-01 2.2681E-01 -6.2183E-02 7.0637E-03
S10 -1.3677E-01 6.0347E-02 6.6597E-02 -9.5844E-02 6.8491E-02 -2.9940E-02 7.6006E-03 -1.0168E-03 5.5318E-05
S11 -3.8716E-02 1.9947E-01 -3.5786E-01 4.5055E-01 -3.8367E-01 1.9701E-01 -5.7462E-02 8.7547E-03 -5.4113E-04
S12 6.1856E-02 8.5363E-02 -3.5622E-01 5.1472E-01 -4.2887E-01 2.1918E-01 -6.7695E-02 1.1534E-02 -8.2639E-04
S13 5.9273E-02 -5.9306E-02 -1.6391E-02 6.2223E-02 -5.1903E-02 2.4280E-02 -6.8259E-03 1.0658E-03 -7.0568E-05
S14 -1.2121E-02 -1.6372E-02 -7.1642E-03 1.3286E-02 -6.3512E-03 1.0001E-03 2.8277E-04 -1.2945E-04 1.3609E-05
Table 11
Table 12 provide effective pixel area diagonal line length on the imaging surface S17 of imaging lens in embodiment 4 half ImgH, Optics total length TTL, maximum angle of half field-of view HFOV, F-number Fno, total effective focal length f and each lens effective focal length f1 extremely f7。
ImgH(mm) 1.98 f2(mm) -10.27
TTL(mm) 5.17 f3(mm) -10.73
HFOV(°) 18.1 f4(mm) -2.70
Fno 2.82 f5(mm) 11.89
f(mm) 5.89 f6(mm) -8.46
f1(mm) 2.23 f7(mm) 8.92
Table 12
Fig. 8 A show chromatic curve on the axis of the imaging lens of embodiment 4, indicate the light of different wave length via mirror Converging focal point after head deviates.Fig. 8 B show the astigmatism curve of the imaging lens of embodiment 4, indicate meridianal image surface bending and Sagittal image surface is bent.Fig. 8 C show the distortion curve of the imaging lens of embodiment 4, indicate the distortion corresponding to different image heights Sizes values.Fig. 8 D show the ratio chromatism, curve of the imaging lens of embodiment 4, indicate light via after camera lens in imaging surface On different image heights deviation.According to Fig. 8 A to Fig. 8 D it is found that the imaging lens given by embodiment 4 can realize it is good Image quality.
Embodiment 5
The imaging lens according to the embodiment of the present application 5 are described referring to Fig. 9 to Figure 10 D.Fig. 9 is shown according to this Shen Please embodiment 5 imaging lens structural schematic diagram.
As shown in figure 9, sequentially being wrapped by object side to image side along optical axis according to the imaging lens of the application illustrative embodiments It includes：Diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, optical filter E8 and imaging surface S17.
It is convex surface that first lens E1, which has positive light coke, object side S1, and image side surface S2 is convex surface.Second lens E2 has Negative power, object side S3 are concave surface, and image side surface S4 is convex surface.The third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.It is concave surface that 4th lens E4, which has negative power, object side S7, and image side surface S8 is concave surface.The It is convex surface that five lens E5, which have positive light coke, object side S9, and image side surface S10 is convex surface.6th lens E6 has negative power, Its object side S11 is concave surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has positive light coke, object side S13, as Side S14 is convex surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 13 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens of embodiment 5 Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 13
As shown in Table 13, in embodiment 5, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 14 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 5, wherein each Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 14
Table 15 provide effective pixel area diagonal line length on the imaging surface S17 of imaging lens in embodiment 5 half ImgH, Optics total length TTL, maximum angle of half field-of view HFOV, F-number Fno, total effective focal length f and each lens effective focal length f1 extremely f7。
ImgH(mm) 1.98 f2(mm) -19.41
TTL(mm) 5.17 f3(mm) -7.66
HFOV(°) 18.1 f4(mm) -2.80
Fno 2.82 f5(mm) 13.27
f(mm) 5.90 f6(mm) -10.27
f1(mm) 2.24 f7(mm) 12.91
Table 15
Figure 10 A show chromatic curve on the axis of the imaging lens of embodiment 5, indicate the light of different wave length via mirror Converging focal point after head deviates.Figure 10 B show the astigmatism curve of the imaging lens of embodiment 5, indicate meridianal image surface bending It is bent with sagittal image surface.Figure 10 C show the distortion curve of the imaging lens of embodiment 5, indicate corresponding to different image heights Distort sizes values.Figure 10 D show the ratio chromatism, curve of the imaging lens of embodiment 5, indicate light via after camera lens The deviation of different image heights on imaging surface.According to Figure 10 A to Figure 10 D it is found that the imaging lens given by embodiment 5 can be real Existing good image quality.
Embodiment 6
The imaging lens according to the embodiment of the present application 6 are described referring to Figure 11 to Figure 12 D.Figure 11 is shown according to this Apply for the structural schematic diagram of the imaging lens of embodiment 6.
As shown in figure 11, it is sequentially wrapped by object side to image side along optical axis according to the imaging lens of the application illustrative embodiments It includes：Diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, optical filter E8 and imaging surface S17.
It is convex surface that first lens E1, which has positive light coke, object side S1, and image side surface S2 is convex surface.Second lens E2 has Negative power, object side S3 are concave surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.It is concave surface that 4th lens E4, which has negative power, object side S7, and image side surface S8 is concave surface.The It is convex surface that five lens E5, which have negative power, object side S9, and image side surface S10 is concave surface.6th lens E6 has negative power, Its object side S11 is concave surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has positive light coke, object side S13, as Side S14 is convex surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 16 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens of embodiment 6 Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 16
As shown in Table 16, in embodiment 6, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 17 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 6, wherein each Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.8529E-02 -2.1747E-02 1.8477E-01 -6.8673E-01 1.5752E+00 -2.2403E+00 1.9096E+00 -8.9932E-01 1.7819E-01
S2 -1.5479E-01 5.2508E-01 -8.0483E-01 6.2712E-01 -8.8336E-01 2.4284E+00 -3.4710E+00 2.2963E+00 -5.8019E-01
S3 -2.0975E-01 7.8713E-01 -9.4088E-01 -6.9279E-01 2.3652E+00 9.8041E-01 -6.9208E+00 6.8954E+00 -2.2315E+00
S4 -1.1445E-02 4.9646E-03 1.0366E+00 -4.7898E+00 4.7745E+00 1.8595E+01 -5.6711E+01 5.7838E+01 -2.0517E+01
S5 1.2709E-01 -7.7152E-01 3.0514E+00 -7.4859E+00 2.0265E+00 4.8739E+01 -1.3663E+02 1.5080E+02 -6.0148E+01
S6 7.1214E-02 -2.7977E-01 2.1635E-01 7.4593E+00 -5.4190E+01 1.9304E+02 -3.9415E+02 4.2269E+02 -1.7980E+02
S7 -1.3984E-01 -1.0620E-01 4.8367E+00 -4.4674E+01 2.1378E+02 -6.3732E+02 1.1574E+03 -1.1878E+03 5.4032E+02
S8 6.8262E-03 2.4300E-01 1.1318E+00 -1.3081E+01 5.3348E+01 -1.2989E+02 1.9216E+02 -1.5561E+02 5.2228E+01
S9 -3.4096E-01 2.5269E-01 6.2131E-01 -1.6464E+00 2.1021E+00 -1.7084E+00 8.6215E-01 -2.4077E-01 2.7573E-02
S10 -5.2731E-01 6.0993E-01 -2.1053E-01 4.7658E-02 -8.4688E-02 7.1946E-02 -2.6489E-02 4.5805E-03 -3.0729E-04
S11 -1.4749E-01 8.4715E-02 1.3739E-01 -1.3279E-01 7.1343E-03 3.0695E-02 -1.3731E-02 2.3800E-03 -1.5109E-04
S12 2.9753E-01 -3.3312E-01 -1.3616E-02 3.6577E-01 -3.8381E-01 2.0246E-01 -6.1449E-02 1.0221E-02 -7.1887E-04
S13 2.3801E-01 -3.9248E-01 4.3048E-01 -3.9560E-01 2.3729E-01 -8.0476E-02 1.3471E-02 -6.5694E-04 -4.6697E-05
S14 4.1619E-02 -1.3298E-01 1.7167E-01 -1.7851E-01 1.2028E-01 -5.0998E-02 1.3327E-02 -1.9579E-03 1.2336E-04
Table 17
Table 18 provide effective pixel area diagonal line length on the imaging surface S17 of imaging lens in embodiment 6 half ImgH, Optics total length TTL, maximum angle of half field-of view HFOV, F-number Fno, total effective focal length f and each lens effective focal length f1 extremely f7。
ImgH(mm) 1.98 f2(mm) -15.34
TTL(mm) 5.17 f3(mm) -8.38
HFOV(°) 18.1 f4(mm) -2.97
Fno 2.82 f5(mm) -261.66
f(mm) 5.89 f6(mm) -40.00
f1(mm) 2.23 f7(mm) 14.15
Table 18
Figure 12 A show chromatic curve on the axis of the imaging lens of embodiment 6, indicate the light of different wave length via mirror Converging focal point after head deviates.Figure 12 B show the astigmatism curve of the imaging lens of embodiment 6, indicate meridianal image surface bending It is bent with sagittal image surface.Figure 12 C show the distortion curve of the imaging lens of embodiment 6, indicate corresponding to different image heights Distort sizes values.Figure 12 D show the ratio chromatism, curve of the imaging lens of embodiment 6, indicate light via after camera lens The deviation of different image heights on imaging surface.According to Figure 12 A to Figure 12 D it is found that the imaging lens given by embodiment 6 can be real Existing good image quality.
Embodiment 7
The imaging lens according to the embodiment of the present application 7 are described referring to Figure 13 to Figure 14 D.Figure 13 is shown according to this Apply for the structural schematic diagram of the imaging lens of embodiment 7.
As shown in figure 13, it is sequentially wrapped by object side to image side along optical axis according to the imaging lens of the application illustrative embodiments It includes：Diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, optical filter E8 and imaging surface S17.
It is convex surface that first lens E1, which has positive light coke, object side S1, and image side surface S2 is convex surface.Second lens E2 has Negative power, object side S3 are concave surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.It is concave surface that 4th lens E4, which has negative power, object side S7, and image side surface S8 is concave surface.The It is convex surface that five lens E5, which have negative power, object side S9, and image side surface S10 is concave surface.6th lens E6 has negative power, Its object side S11 is concave surface, and image side surface S12 is convex surface.It is convex surface that 7th lens E7, which has positive light coke, object side S13, as Side S14 is convex surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 19 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens of embodiment 7 Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 19
As shown in Table 19, in embodiment 7, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 20 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 7, wherein each Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 2.1441E-02 -4.5164E-02 3.3850E-01 -1.1976E+00 2.5898E+00 -3.5174E+00 2.9157E+00 -1.3555E+00 2.6859E-01
S2 -2.3614E-01 1.4618E+00 -5.1358E+00 1.1632E+01 -1.7545E+01 1.7610E+01 -1.1395E+01 4.3301E+00 -7.3573E-01
S3 -3.0798E-01 2.1174E+00 -8.1973E+00 2.0476E+01 -3.3510E+01 3.6349E+01 -2.5498E+01 1.0597E+01 -1.9930E+00
S4 -7.2516E-02 1.3228E+00 -9.0968E+00 3.3345E+01 -7.4765E+01 1.0997E+02 -1.0513E+02 5.9325E+01 -1.4758E+01
S5 1.2478E-01 5.7028E-02 -4.8201E+00 2.2472E+01 -5.1663E+01 7.2057E+01 -6.2764E+01 3.1453E+01 -6.0859E+00
S6 1.4278E-01 -4.2923E-01 -4.8817E-01 5.6626E+00 -1.8316E+01 2.7486E+01 -4.7411E+00 -3.8415E+01 3.6016E+01
S7 -1.0233E-01 -8.5582E-02 1.7629E+00 -2.4487E+01 1.2575E+02 -3.8163E+02 7.1495E+02 -7.6471E+02 3.5915E+02
S8 2.6979E-02 5.3344E-01 -3.7341E+00 1.7652E+01 -6.9462E+01 1.9319E+02 -3.3092E+02 3.1035E+02 -1.2197E+02
S9 -4.8066E-01 7.5775E-01 2.6228E-01 -3.1178E+00 6.1788E+00 -6.4619E+00 3.8956E+00 -1.2875E+00 1.8161E-01
S10 -7.3249E-01 1.3162E+00 -1.2177E+00 1.1167E+00 -2.0406E+00 3.2390E+00 -2.7962E+00 1.1975E+00 -2.0228E-01
S11 -1.7122E-01 -1.6373E-01 1.7586E+00 -3.8666E+00 4.5545E+00 -3.2328E+00 1.3905E+00 -3.3630E-01 3.5228E-02
S12 4.2485E-01 -8.2889E-01 1.0074E+00 -8.7947E-01 5.5368E-01 -2.3573E-01 6.1928E-02 -8.7624E-03 4.7665E-04
S13 3.0171E-01 -5.0356E-01 4.8311E-01 -3.2495E-01 1.1890E-01 -4.5132E-03 -1.2277E-02 3.9113E-03 -3.8202E-04
S14 3.7432E-02 -9.2832E-02 8.1613E-02 -9.8194E-02 8.6634E-02 -4.8921E-02 1.7274E-02 -3.4426E-03 2.9264E-04
Table 20
Table 21 provide effective pixel area diagonal line length on the imaging surface S17 of imaging lens in embodiment 7 half ImgH, Optics total length TTL, maximum angle of half field-of view HFOV, F-number Fno, total effective focal length f and each lens effective focal length f1 extremely f7。
Table 21
Figure 14 A show chromatic curve on the axis of the imaging lens of embodiment 7, indicate the light of different wave length via mirror Converging focal point after head deviates.Figure 14 B show the astigmatism curve of the imaging lens of embodiment 7, indicate meridianal image surface bending It is bent with sagittal image surface.Figure 14 C show the distortion curve of the imaging lens of embodiment 7, indicate corresponding to different image heights Distort sizes values.Figure 14 D show the ratio chromatism, curve of the imaging lens of embodiment 7, indicate light via after camera lens The deviation of different image heights on imaging surface.According to Figure 14 A to Figure 14 D it is found that the imaging lens given by embodiment 7 can be real Existing good image quality.
Embodiment 8
The imaging lens according to the embodiment of the present application 8 are described referring to Figure 15 to Figure 16 D.Figure 15 is shown according to this Apply for the structural schematic diagram of the imaging lens of embodiment 8.
As shown in figure 15, it is sequentially wrapped by object side to image side along optical axis according to the imaging lens of the application illustrative embodiments It includes：Diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, optical filter E8 and imaging surface S17.
It is convex surface that first lens E1, which has positive light coke, object side S1, and image side surface S2 is convex surface.Second lens E2 has Negative power, object side S3 are concave surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.It is concave surface that 4th lens E4, which has negative power, object side S7, and image side surface S8 is concave surface.The It is convex surface that five lens E5, which have negative power, object side S9, and image side surface S10 is concave surface.6th lens E6 has negative power, Its object side S11 is concave surface, and image side surface S12 is concave surface.It is concave surface that 7th lens E7, which has positive light coke, object side S13, as Side S14 is convex surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 22 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens of embodiment 8 Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 22
As shown in Table 22, in embodiment 8, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 23 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 8, wherein each Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.8914E-02 -2.3045E-02 2.1720E-01 -8.0559E-01 1.7958E+00 -2.4965E+00 2.1068E+00 -9.9574E-01 1.9993E-01
S2 -2.4217E-01 1.5476E+00 -5.6932E+00 1.3617E+01 -2.1701E+01 2.2847E+01 -1.5279E+01 5.8787E+00 -9.8905E-01
S3 -3.1211E-01 2.2259E+00 -9.0116E+00 2.3540E+01 -4.0097E+01 4.4621E+01 -3.1281E+01 1.2527E+01 -2.1762E+00
S4 -6.7304E-02 1.2526E+00 -8.5436E+00 2.9773E+01 -5.9468E+01 7.0374E+01 -4.5633E+01 1.1642E+01 9.8094E-01
S5 1.2684E-01 1.5107E-02 -4.5521E+00 2.0816E+01 -4.2448E+01 4.0975E+01 -5.2805E+00 -2.2819E+01 1.4423E+01
S6 1.5018E-01 -4.8664E-01 -7.7181E-02 2.6643E+00 -2.9969E+00 -2.0275E+01 7.9926E+01 -1.1534E+02 6.3206E+01
S7 -9.6881E-02 -4.6449E-02 3.9317E-02 -8.4119E+00 4.5661E+01 -1.3361E+02 2.3728E+02 -2.3849E+02 1.0495E+02
S8 2.8285E-02 4.7908E-01 -3.7428E+00 1.8691E+01 -6.9933E+01 1.8123E+02 -2.9335E+02 2.6435E+02 -1.0147E+02
S9 -4.9827E-01 1.1024E+00 -2.0398E+00 4.1833E+00 -6.9833E+00 7.9139E+00 -5.5587E+00 2.1624E+00 -3.5488E-01
S10 -7.6559E-01 1.7621E+00 -3.4070E+00 6.6510E+00 -1.0038E+01 1.0134E+01 -6.3124E+00 2.1744E+00 -3.1551E-01
S11 -1.7991E-01 3.2766E-02 8.8261E-01 -1.9157E+00 2.0274E+00 -1.2345E+00 4.3268E-01 -7.9405E-02 5.6176E-03
S12 4.2443E-01 -9.4490E-01 1.3645E+00 -1.3996E+00 9.8040E-01 -4.4494E-01 1.2299E-01 -1.8586E-02 1.1519E-03
S13 3.0429E-01 -5.0987E-01 4.5256E-01 -1.9074E-01 -6.2773E-02 1.1439E-01 -5.2968E-02 1.0811E-02 -8.2785E-04
S14 4.1955E-02 -3.3316E-02 -1.9987E-01 4.0606E-01 -3.8893E-01 2.1158E-01 -6.6426E-02 1.1220E-02 -7.8873E-04
Table 23
Table 24 provide effective pixel area diagonal line length on the imaging surface S17 of imaging lens in embodiment 8 half ImgH, Optics total length TTL, maximum angle of half field-of view HFOV, F-number Fno, total effective focal length f and each lens effective focal length f1 extremely f7。
ImgH(mm) 1.98 f2(mm) -15.53
TTL(mm) 5.17 f3(mm) -8.35
HFOV(°) 18.1 f4(mm) -3.08
Fno 2.82 f5(mm) -183.47
f(mm) 5.89 f6(mm) -42.40
f1(mm) 2.24 f7(mm) 21.38
Table 24
Figure 16 A show chromatic curve on the axis of the imaging lens of embodiment 8, indicate the light of different wave length via mirror Converging focal point after head deviates.Figure 16 B show the astigmatism curve of the imaging lens of embodiment 8, indicate meridianal image surface bending It is bent with sagittal image surface.Figure 16 C show the distortion curve of the imaging lens of embodiment 8, indicate corresponding to different image heights Distort sizes values.Figure 16 D show the ratio chromatism, curve of the imaging lens of embodiment 8, indicate light via after camera lens The deviation of different image heights on imaging surface.According to Figure 16 A to Figure 16 D it is found that the imaging lens given by embodiment 8 can be real Existing good image quality.
Embodiment 9
The imaging lens according to the embodiment of the present application 9 are described referring to Figure 17 to Figure 18 D.Figure 17 shows according to this Apply for the structural schematic diagram of the imaging lens of embodiment 9.
As shown in figure 17, it is sequentially wrapped by object side to image side along optical axis according to the imaging lens of the application illustrative embodiments It includes：Diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, optical filter E8 and imaging surface S17.
It is convex surface that first lens E1, which has positive light coke, object side S1, and image side surface S2 is convex surface.Second lens E2 has Negative power, object side S3 are concave surface, and image side surface S4 is convex surface.The third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.It is concave surface that 4th lens E4, which has negative power, object side S7, and image side surface S8 is concave surface.The It is convex surface that five lens E5, which have negative power, object side S9, and image side surface S10 is concave surface.6th lens E6 has negative power, Its object side S11 is concave surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has positive light coke, object side S13, as Side S14 is convex surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 25 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens of embodiment 9 Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 25
As shown in Table 25, in embodiment 9, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 26 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 9, wherein each Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 26
Table 27 provide effective pixel area diagonal line length on the imaging surface S17 of imaging lens in embodiment 9 half ImgH, Optics total length TTL, maximum angle of half field-of view HFOV, F-number Fno, total effective focal length f and each lens effective focal length f1 extremely f7。
ImgH(mm) 1.98 f2(mm) -20.06
TTL(mm) 5.17 f3(mm) -7.52
HFOV(°) 18.1 f4(mm) -3.12
Fno 2.82 f5(mm) -162.90
f(mm) 5.89 f6(mm) -46.53
f1(mm) 2.23 f7(mm) 23.27
Table 27
Figure 18 A show chromatic curve on the axis of the imaging lens of embodiment 9, indicate the light of different wave length via mirror Converging focal point after head deviates.Figure 18 B show the astigmatism curve of the imaging lens of embodiment 9, indicate meridianal image surface bending It is bent with sagittal image surface.Figure 18 C show the distortion curve of the imaging lens of embodiment 9, indicate corresponding to different image heights Distort sizes values.Figure 18 D show the ratio chromatism, curve of the imaging lens of embodiment 9, indicate light via after camera lens The deviation of different image heights on imaging surface.According to Figure 18 A to Figure 18 D it is found that the imaging lens given by embodiment 9 can be real Existing good image quality.
Embodiment 10
The imaging lens according to the embodiment of the present application 10 are described referring to Figure 19 to Figure 20 D.Figure 19 shows basis The structural schematic diagram of the imaging lens of the embodiment of the present application 10.
As shown in figure 19, it is sequentially wrapped by object side to image side along optical axis according to the imaging lens of the application illustrative embodiments It includes：Diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, optical filter E8 and imaging surface S17.
It is convex surface that first lens E1, which has positive light coke, object side S1, and image side surface S2 is convex surface.Second lens E2 has Negative power, object side S3 are concave surface, and image side surface S4 is convex surface.The third lens E3 has negative power, and object side S5 is Concave surface, image side surface S6 are concave surface.It is concave surface that 4th lens E4, which has negative power, object side S7, and image side surface S8 is concave surface.The It is convex surface that five lens E5, which have negative power, object side S9, and image side surface S10 is concave surface.6th lens E6 has negative power, Its object side S11 is concave surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has positive light coke, object side S13, as Side S14 is convex surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 28 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens of embodiment 10 Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 28
As shown in Table 28, in embodiment 10, the object side of any one lens in the first lens E1 to the 7th lens E7 Face and image side surface are aspherical.Table 29 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 10, wherein Each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 1.9407E-02 -1.5298E-02 1.6638E-01 -6.2879E-01 1.4413E+00 -2.0766E+00 1.8225E+00 -8.9835E-01 1.8799E-01
S2 -2.5480E-01 1.6817E+00 -6.3101E+00 1.5154E+01 -2.4044E+01 2.5137E+01 -1.6727E+01 6.4421E+00 -1.0944E+00
S3 -3.2010E-01 2.2852E+00 -9.3084E+00 2.4500E+01 -4.2230E+01 4.7939E+01 -3.4707E+01 1.4592E+01 -2.7167E+00
S4 -6.8887E-02 1.3984E+00 -1.0209E+01 3.9613E+01 -9.2882E+01 1.3877E+02 -1.2967E+02 6.8995E+01 -1.5768E+01
S5 1.1537E-01 3.3916E-01 -7.7846E+00 3.8939E+01 -1.0358E+02 1.6874E+02 -1.6811E+02 9.3631E+01 -2.1564E+01
S6 1.5947E-01 -6.4398E-01 8.6499E-01 -2.6345E+00 1.9483E+01 -8.3321E+01 1.9018E+02 -2.2434E+02 1.0960E+02
S7 -9.5716E-02 -9.7736E-02 1.2121E+00 -1.8042E+01 9.1603E+01 -2.7067E+02 4.8992E+02 -5.0376E+02 2.2738E+02
S8 3.2096E-02 4.0919E-01 -2.4872E+00 9.8912E+00 -3.4756E+01 9.2658E+01 -1.5606E+02 1.4477E+02 -5.6417E+01
S9 -4.9446E-01 9.4585E-01 -1.0083E+00 9.3704E-01 -1.0815E+00 1.3532E+00 -1.1619E+00 5.3087E-01 -9.7387E-02
S10 -7.3019E-01 1.4371E+00 -2.0128E+00 3.1984E+00 -4.8409E+00 5.3127E+00 -3.6192E+00 1.3447E+00 -2.0743E-01
S11 -1.4507E-01 -2.6455E-01 1.8909E+00 -3.8284E+00 4.2269E+00 -2.8023E+00 1.1137E+00 -2.4549E-01 2.3128E-02
S12 4.2627E-01 -8.7774E-01 1.1735E+00 -1.0946E+00 6.6933E-01 -2.3935E-01 3.8866E-02 6.0685E-04 -7.1030E-04
S13 3.0782E-01 -4.9030E-01 3.9263E-01 -1.5673E-01 -4.2807E-02 8.4227E-02 -3.9891E-02 8.3760E-03 -6.6660E-04
S14 4.2980E-02 -6.5545E-02 -6.1713E-02 1.5002E-01 -1.3691E-01 6.9000E-02 -1.9642E-02 2.9195E-03 -1.7219E-04
Table 29
Table 30 provides the half of effective pixel area diagonal line length on the imaging surface S17 of imaging lens in embodiment 10 The effective focal length of ImgH, optics total length TTL, maximum angle of half field-of view HFOV, F-number Fno, total effective focal length f and each lens F1 to f7.
ImgH(mm) 1.98 f2(mm) -148.13
TTL(mm) 5.17 f3(mm) -5.84
HFOV(°) 18.1 f4(mm) -3.06
Fno 2.82 f5(mm) -92.01
f(mm) 5.90 f6(mm) -56.54
f1(mm) 2.23 f7(mm) 23.54
Table 30
Figure 20 A show chromatic curve on the axis of the imaging lens of embodiment 10, indicate the light of different wave length via Converging focal point after camera lens deviates.Figure 20 B show the astigmatism curve of the imaging lens of embodiment 10, indicate that meridianal image surface is curved The bending of bent and sagittal image surface.Figure 20 C show the distortion curve of the imaging lens of embodiment 10, indicate corresponding to different image heights Distortion sizes values.Figure 20 D show the ratio chromatism, curve of the imaging lens of embodiment 10, after indicating light via camera lens The deviation of different image heights on imaging surface.0A to Figure 20 D is it is found that imaging lens energy given by embodiment 10 according to fig. 2 Enough realize good image quality.
To sum up, embodiment 1 to embodiment 10 meets relationship shown in table 31 respectively.
Table 31
The application also provides a kind of imaging device, and electronics photosensitive element can be photosensitive coupling element (CCD) or complementation Property matal-oxide semiconductor element (CMOS).Imaging device can be the independent imaging equipment of such as digital camera, can also be The image-forming module being integrated on the mobile electronic devices such as mobile phone.The imaging device is equipped with imaging lens described above.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art Member should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature Other technical solutions of arbitrary combination and formation.Such as features described above has similar work(with (but not limited to) disclosed herein Can technical characteristic replaced mutually and the technical solution that is formed.

Claims (13)

1. imaging lens include sequentially by object side to image side along optical axis：First lens, the second lens, the third lens, the 4th are thoroughly Mirror, the 5th lens, the 6th lens and the 7th lens, which is characterized in that
First lens have focal power；
Second lens have focal power；
The third lens have negative power；
It is concave surface that 4th lens, which have negative power, object side, and image side surface is concave surface；
5th lens have focal power；
6th lens have focal power；And
It is convex surface that 7th lens, which have positive light coke, image side surface,；And
Airspace is all had between two lens of arbitrary neighborhood.
2. imaging lens according to claim 1, which is characterized in that total effective focal length f of the imaging lens with it is described The effective focal length f1 of first lens meets 1.5 ＜ f/ | f1 | ＜ 3.5.
3. imaging lens according to claim 1, which is characterized in that the maximum angle of half field-of view HFOV of the imaging lens is full Sufficient HFOV≤20 °.
4. imaging lens according to claim 1, which is characterized in that the radius of curvature R 7 of the object side of the 4th lens Meet 1 ＜ (R7-R8)/(R7+R8) ＜ 3 with the radius of curvature R 8 of the image side surface of the 4th lens.
5. imaging lens according to claim 4, which is characterized in that the effective focal length f4 of the 4th lens and described the The effective focal length f1 of one lens meets 1 ＜ | f4/f1 | ＜ 2.
6. imaging lens according to claim 1, which is characterized in that the first lens object side to the imaging lens Distance TTL of the imaging surface on the optical axis and total effective focal length f of the imaging lens meet TTL/f ＜ 1.
7. imaging lens according to claim 1, which is characterized in that the radius of curvature R 1 of the object side of first lens Meet 2 ＜ with the radius of curvature R 6 of the image side surface of the third lens | R6 |/| R1 | ＜ 3.
8. imaging lens according to claim 7, which is characterized in that total effective focal length f of the imaging lens, described The effective focal length f2 of two lens and the effective focal length f3 of the third lens meet 0 ＜ | f/f2 |+| f/f3 | ＜ 2.
9. imaging lens according to claim 1, which is characterized in that the effective focal length f6 of the 6th lens and described the The effective focal length f7 of seven lens meets -3 ＜ f6/f7 ＜ 0.
10. imaging lens according to any one of claim 1 to 9, which is characterized in that the imaging lens it is total effectively Focal length f and first lens meet 1.5 ＜ to the 7th lens respectively at the sum of center thickness on optical axis ∑ CT F/ ∑ CT ＜ 3.
11. imaging lens according to any one of claim 1 to 9, which is characterized in that second lens are in the light Center thickness CT2, the third lens on axis are in the center thickness CT3 on the optical axis with the 4th lens in the light Center thickness CT4 on axis meets 1.5 ＜ (CT2+CT4)/CT3 ＜ 3.
12. imaging lens according to any one of claim 1 to 9, which is characterized in that the 4th lens and described Spacing distance T45 of five lens on the optical axis and the interval of the 5th lens and the 6th lens on the optical axis Distance T56 meets 1.5 ＜ T45/T56 ＜ 4.
13. imaging lens include sequentially by object side to image side along optical axis：First lens, the second lens, the third lens, the 4th Lens, the 5th lens, the 6th lens and the 7th lens, which is characterized in that
First lens have focal power；
Second lens have focal power；
The third lens have negative power；
It is concave surface that 4th lens, which have negative power, object side, and image side surface is concave surface；
5th lens have focal power；
6th lens have focal power；And
It is convex surface that 7th lens, which have positive light coke, image side surface,；
The maximum angle of half field-of view HFOV of the imaging lens meets HFOV≤20 °.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019228017A1 (en) * 2018-05-28 2019-12-05 浙江舜宇光学有限公司 Imaging lens
WO2020088024A1 (en) * 2018-10-30 2020-05-07 浙江舜宇光学有限公司 Optical imaging camera
US11460669B2 (en) * 2018-12-31 2022-10-04 Aac Optics Solutions Pte. Ltd. Camera optical lens including six lenses of +- +- refractive powers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111999860A (en) * 2020-09-04 2020-11-27 厦门力鼎光电股份有限公司 Wide-angle imaging lens for video transmission

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205091499U (en) * 2014-09-30 2016-03-16 康达智株式会社 7 camera lens that piece optical element constitutes
CN107037568A (en) * 2016-02-04 2017-08-11 大立光电股份有限公司 Optical lens for shooting group, image-taking device and electronic installation
US20180074298A1 (en) * 2016-09-12 2018-03-15 Samsung Electro-Mechanics Co., Ltd. Optical imaging system
CN207164343U (en) * 2016-11-28 2018-03-30 三星电机株式会社 Optical imaging system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54158225A (en) * 1978-06-05 1979-12-13 Ricoh Co Ltd Photographic lens having long back focus and large aperture ratio
KR100388917B1 (en) * 1995-12-08 2003-09-19 삼성테크윈 주식회사 Optic system for photo lens
JP5612515B2 (en) * 2011-03-08 2014-10-22 株式会社タムロン Fixed focus lens
TWI509281B (en) * 2012-11-13 2015-11-21 Sintai Optical Shenzhen Co Ltd Projection lens
CN108490587B (en) * 2018-05-28 2023-06-09 浙江舜宇光学有限公司 Imaging lens

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205091499U (en) * 2014-09-30 2016-03-16 康达智株式会社 7 camera lens that piece optical element constitutes
CN107037568A (en) * 2016-02-04 2017-08-11 大立光电股份有限公司 Optical lens for shooting group, image-taking device and electronic installation
US20180074298A1 (en) * 2016-09-12 2018-03-15 Samsung Electro-Mechanics Co., Ltd. Optical imaging system
CN207164343U (en) * 2016-11-28 2018-03-30 三星电机株式会社 Optical imaging system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019228017A1 (en) * 2018-05-28 2019-12-05 浙江舜宇光学有限公司 Imaging lens
WO2020088024A1 (en) * 2018-10-30 2020-05-07 浙江舜宇光学有限公司 Optical imaging camera
US11460669B2 (en) * 2018-12-31 2022-10-04 Aac Optics Solutions Pte. Ltd. Camera optical lens including six lenses of +- +- refractive powers

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