CN108732724A - Optical imaging system - Google Patents

Optical imaging system Download PDF

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Publication number
CN108732724A
CN108732724A CN201810961646.4A CN201810961646A CN108732724A CN 108732724 A CN108732724 A CN 108732724A CN 201810961646 A CN201810961646 A CN 201810961646A CN 108732724 A CN108732724 A CN 108732724A
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China
Prior art keywords
lens
imaging system
optical imaging
object side
curvature
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Granted
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CN201810961646.4A
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CN108732724B (en
Inventor
黄林
游兴海
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Zhejiang Sunny Optics Co Ltd
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Zhejiang Sunny Optics Co Ltd
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Priority to CN201810961646.4A priority Critical patent/CN108732724B/en
Publication of CN108732724A publication Critical patent/CN108732724A/en
Priority to PCT/CN2019/095204 priority patent/WO2020038134A1/en
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Publication of CN108732724B publication Critical patent/CN108732724B/en
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    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

This application discloses a kind of optical imaging system, 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.First lens have positive light coke；Second lens have negative power；The third lens have focal power；4th lens have focal power；It is concave surface that 5th lens, which have focal power, image side surface,；6th lens have positive light coke, and object side and image side surface are convex surface；It is concave surface that 7th lens, which have negative power, object side,.The Entry pupil diameters EPD of the half ImgH of effective pixel area diagonal line length, total effective focal length f of optical imaging system and optical imaging system meet ImgH/ (f/EPD) >=2.4mm on the imaging surface of optical imaging system.

Description

Optical imaging system
Technical field
This application involves a kind of optical imaging systems, more specifically, this application involves it is a kind of include seven lens optics Imaging system.
Background technology
With the development of science and technology, portable electronic product gradually rises, and the portable electronic with camera function produces Product, which obtain people, more to be favored, therefore demand of the market to the pick-up lens suitable for portable electronic product gradually increases. On the one hand, since the portable electronic products such as such as smart mobile phone tend to minimize, the overall length of camera lens is limited, to increase The design difficulty of camera lens.On the other hand, with for example photosensitive coupling element (CCD) or Complimentary Metal-Oxide semiconductor element (CMOS) raising of common photosensitive element performance and the reduction of size so that the pixel number of photosensitive element increases and pixel dimension such as Reduce, to which to the high image quality of pick-up lens to match and miniaturization, more stringent requirements are proposed.
In order to meet the requirement of miniaturization, F-number (F numbers) that existing camera lens usually configures 2.0 or 2.0 or more, with Take into account miniaturization and good optical property.But with the continuous development of the portable electronic products such as smart mobile phone, to mating More stringent requirements are proposed for the pick-up lens used, especially insufficient light (such as rainy days, dusk), the hand shaking situations such as Under, the camera lens that F numbers are 2.0 or 2.0 or more can no longer meet the imaging requirements of higher order.
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 optical imaging system of above-mentioned at least one disadvantage, such as large aperture imaging lens.
On the one hand, this application provides such a optical imaging systems, and the optical imaging system is along optical axis by object side Include sequentially to image side：First lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th are thoroughly Mirror.First lens can have positive light coke；Second lens can have negative power；The third lens have focal power；4th lens With focal power；5th lens have focal power, and image side surface can be concave surface；6th lens can have positive light coke, object side Face and image side surface can be convex surface；7th lens can have negative power, and object side can be concave surface.Wherein, optical imagery system On the imaging surface of system the half ImgH of effective pixel area diagonal line length, total effective focal length f of optical imaging system and optics at As the Entry pupil diameters EPD of system can meet ImgH/ (f/EPD) >=2.4mm.
In one embodiment, the combined focal length f123 and optical imagery of the first lens, the second lens and the third lens Total effective focal length f of system can meet 0.5 < f123/f < 1.5.
In one embodiment, the radius of curvature R 1 of the object side of the first lens and the effective focal length f1 of the first lens can Meet 0.2 < R1/f1 < 0.7.
In one embodiment, the curvature of the object side of the radius of curvature R 4 and the second lens of the image side surface of the second lens Radius R3 can meet 0.3 < R4/R3 < 0.8.
In one embodiment, the group focus of total effective focal length f of optical imaging system, the 4th lens and the 5th lens Combined focal length f67 away from f45 and the 6th lens and the 7th lens can meet | f/f45 |+| f/f67 |≤0.6.
In one embodiment, the radius of curvature R 9 of the object side of the 5th lens, the 5th lens image side surface Effective focal length f5 0 < of satisfaction (R9+R10) of radius of curvature R 10 and the 5th lens/| f5 | < 0.7.
In one embodiment, during center thickness CT6 and the 7th lens of the 6th lens on optical axis are on optical axis Heart thickness CT7 can meet 1.2 < CT6/CT7 < 1.9.
In one embodiment, the radius of curvature R 11 of the object side of the 6th lens, the 6th lens image side surface curvature The radius of curvature R 13 of the object side of radius R12, the 7th lens and the radius of curvature R 14 of the image side surface of the 7th lens can meet 0.4 ≤(R11+R12)/|R13-R14|≤2.4。
In one embodiment, the object side of the maximum effective half bore DT51 and the 7th lens of the object side of the 5th lens The effective half bore DT71 of maximum in face can meet 0.3 < DT51/DT71 < 0.7.
In one embodiment, center thickness CT6s of the edge thickness ET6 and the 6th lens of the 6th lens on optical axis 0.3 < ET6/CT6 < 0.7 can be met.
In one embodiment, the object side of the first lens to optical imaging system distance of the imaging surface on optical axis The half ImgH of effective pixel area diagonal line length can meet TTL/ImgH < on the imaging surface of TTL and optical imaging system 1.65。
In one embodiment, the object side of center thickness CT1 and first lens of first lens on optical axis are to light 1.1 < of < CT1/TTL × 10 1.6 can be met by learning distance TTL of the imaging surface of imaging system on optical axis.
On the other hand, this application provides such a optical imaging systems, and the optical imaging system is along optical axis by object Side to image side includes sequentially：First lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th Lens.First lens can have positive light coke；Second lens can have negative power；The third lens have focal power；4th thoroughly Mirror has focal power；5th lens have focal power, and image side surface can be concave surface；6th lens can have positive light coke, object Side and image side surface can be convex surface；7th lens can have negative power, and object side can be concave surface.Wherein, the 6th lens The radius of curvature R 11 of object side, the radius of curvature R 12 of image side surface of the 6th lens, the 7th lens object side curvature half The radius of curvature R 14 of the image side surface of diameter R13 and the 7th lens can meet 0.4≤(R11+R12)/| R13-R14 |≤2.4.
Another aspect, this application provides such a optical imaging systems, and the optical imaging system is along optical axis by object Side to image side includes sequentially：First lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th Lens.First lens can have positive light coke；Second lens can have negative power；The third lens have focal power；4th thoroughly Mirror has focal power；5th lens have focal power, and image side surface can be concave surface；6th lens can have positive light coke, object Side and image side surface can be convex surface；7th lens can have negative power, and object side can be concave surface.Wherein, the first lens, Total effective focal length f of the combined focal length f123 and optical imaging system of second lens and the third lens can meet 0.5 < f123/f < 1.5.
Another aspect, this application provides such a optical imaging systems, and the optical imaging system is along optical axis by object Side to image side includes sequentially：First lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th Lens.First lens can have positive light coke；Second lens can have negative power；The third lens have focal power；4th thoroughly Mirror has focal power；5th lens have focal power, and image side surface can be concave surface；6th lens can have positive light coke, object Side and image side surface can be convex surface；7th lens can have negative power, and object side can be concave surface.Wherein, the 6th lens The center thickness CT7 of center thickness CT6 and the 7th lens on optical axis on optical axis can meet 1.2 < CT6/CT7 < 1.9.
Another aspect, this application provides such a optical imaging systems, and the optical imaging system is along optical axis by object Side to image side includes sequentially：First lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th Lens.First lens can have positive light coke；Second lens can have negative power；The third lens have focal power；4th thoroughly Mirror has focal power；5th lens have focal power, and image side surface can be concave surface；6th lens can have positive light coke, object Side and image side surface can be convex surface；7th lens can have negative power, and object side can be concave surface.Wherein, the 5th lens The effective half bore DT51 of maximum of object side and maximum effective half bore DT71 of the object side of the 7th lens can meet 0.3 < DT51/DT71 < 0.7.
Another aspect, this application provides such a optical imaging systems, and the optical imaging system is along optical axis by object Side to image side includes sequentially：First lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th Lens.First lens can have positive light coke；Second lens can have negative power；The third lens have focal power；4th thoroughly Mirror has focal power；5th lens have focal power, and image side surface can be concave surface；6th lens can have positive light coke, object Side and image side surface can be convex surface；7th lens can have negative power, and object side can be concave surface.Wherein, the 6th lens Center thickness CT6 on optical axis of edge thickness ET6 and the 6th lens can meet 0.3 < ET6/CT6 < 0.7.
The application uses multi-disc (for example, seven) lens, by each power of lens of reasonable distribution, face type, each Spacing etc. on axis between the center thickness of mirror and each lens so that above-mentioned optical imaging system has ultra-thin, miniaturization, big At least one advantageous effects such as aperture, high image quality.
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 optical imaging system according to the embodiment of the present application 1；
Fig. 2A to Fig. 2 D respectively illustrates chromatic curve on the axis of the optical imaging system of embodiment 1, astigmatism curve, distortion Curve and ratio chromatism, curve；
Fig. 3 shows the structural schematic diagram of the optical imaging system 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 optical imaging system of embodiment 2, astigmatism curve, distortion Curve and ratio chromatism, curve；
Fig. 5 shows the structural schematic diagram of the optical imaging system 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 optical imaging system of embodiment 3, astigmatism curve, distortion Curve and ratio chromatism, curve；
Fig. 7 shows the structural schematic diagram of the optical imaging system 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 optical imaging system of embodiment 4, astigmatism curve, distortion Curve and ratio chromatism, curve；
Fig. 9 shows the structural schematic diagram of the optical imaging system 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 optical imaging system of embodiment 5, astigmatism curve, abnormal Varied curve and ratio chromatism, curve；
Figure 11 shows the structural schematic diagram of the optical imaging system 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 optical imaging system of embodiment 6, astigmatism curve, abnormal Varied curve and ratio chromatism, curve；
Figure 13 shows the structural schematic diagram of the optical imaging system 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 optical imaging system of embodiment 7, astigmatism curve, abnormal Varied curve and ratio chromatism, curve；
Figure 15 shows the structural schematic diagram of the optical imaging system 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 optical imaging system of embodiment 8, astigmatism curve, abnormal Varied 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.In each lens, it is known as this thoroughly near the surface of object The object side of mirror；In each lens, the image side surface of the lens is known as near the surface of imaging surface.
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 optical imaging system of the application illustrative embodiments, That is, the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.This seven lens Along optical axis by object side to image side sequential, and can have airspace between two lens of arbitrary neighborhood.
In the exemplary embodiment, the first lens can have positive light coke；Second lens can have negative power；Third Lens have positive light coke or negative power；4th lens have positive light coke or negative power；5th lens have positive light focus Degree or negative power, image side surface can be concave surface；It can be convex surface, image side surface that 6th lens, which can have positive light coke, object side, It can be convex surface；And the 7th lens can have negative power, object side can be concave surface.By limiting the first lens, second thoroughly The face type or its focal power of mirror, the 5th lens, the 6th lens and the 7th lens, can make optical imaging system have it is good at Image quality amount.
In the exemplary embodiment, the object side of the first lens can be convex surface.
In the exemplary embodiment, the object side of the second lens can be convex surface, and image side surface can be concave surface.
In the exemplary embodiment, the object side of the 5th lens can be convex surface.
In the exemplary embodiment, the image side surface of the 7th lens can be concave surface.
In the exemplary embodiment, the optical imaging system of the application can meet conditional ImgH/ (f/EPD) >= 2.4mm, wherein ImgH is the half of effective pixel area diagonal line length on the imaging surface of optical imaging system, and f is optical imagery Total effective focal length of system, EPD are the Entry pupil diameters of optical imaging system.More specifically, ImgH, f and EPD can further meet 2.44mm≤ImgH/(f/EPD)≤2.81mm.By the total effective focal length, the Entry pupil diameters that suitably adjust optical imaging system And image height, it can make optical imaging system that there are the characteristics such as large aperture, big image planes, high pixel.
In the exemplary embodiment, the optical imaging system of the application can meet 0.5 < f123/f < 1.5 of conditional, Wherein, f123 is the combined focal length of the first lens, the second lens and the third lens, and f is total effective focal length of optical imaging system. More specifically, f123 and f can further meet 0.8≤f123/f≤1.2, for example, 0.97≤f123/f≤1.08.Pass through constraint The ratio range of the combined focal length and system total focal length of first lens, the second lens and the third lens, enable to the first lens, As a lens group with reasonable positive light coke after second lens and the third lens combination, there is negative power with rear end Lens group carry out aberration balancing, and then the effect of obtain good image quality, realize high resolution.
In the exemplary embodiment, the optical imaging system of the application can meet conditional | f/f45 |+| f/f67 |≤ 0.6, wherein f is total effective focal length of optical imaging system, and f45 is the combined focal length of the 4th lens and the 5th lens, and f67 is The combined focal length of 6th lens and the 7th lens.More specifically, f, f45 and f67 can further meet 0.26≤| f/f45 |+| f/ f67|≤0.60.By rationally controlling the 4th lens and the combined focal length of the 5th lens and the group of the 6th lens and the 7th lens Complex focus can rationally control the aberration contribution amount of this four lens, the aberration and front end light for so that this four lens is generated It learns the aberration that lens generate to be balanced, so that the total aberration of system is in rational horizontality, and then optical imaging system is made to have There is good image quality.
In the exemplary embodiment, the optical imaging system of the application can meet 0 < of conditional (R9+R10)/| f5 | < 0.7, wherein R9 is the radius of curvature of the object side of the 5th lens, and R10 is the radius of curvature of the image side surface of the 5th lens, and f5 is The effective focal length of 5th lens.More specifically, R9, R10 and f5 can further meet 0.01≤(R9+R10)/| f5 |≤0.64. It, can be in control to a certain degree thirdly the contribution of rank astigmatism by controlling the radius of curvature of the 5th lens object side and image side surface Rate so that three rank astigmatisms of the 5th lens are in reasonable range, the effect of realizing the microspur high resolution of imaging system.
In the exemplary embodiment, the optical imaging system of the application can meet 0.3 < R4/R3 < 0.8 of conditional, In, R4 is the radius of curvature of the image side surface of the second lens, and R3 is the radius of curvature of the object side of the second lens.More specifically, R4 It can further meet 0.36≤R4/R3≤0.61 with R3.By the radius of curvature for limiting the object side and image side surface of the second lens Ratio range, can effectively constrain the shape of the second lens, and then efficiently control the image side surface of the second lens The image quality of aberration contribution rate, balance system and the relevant aberration of aperture band and lifting system.
In the exemplary embodiment, the optical imaging system of the application can meet 0.2 < R1/f1 < 0.7 of conditional, In, R1 is the radius of curvature of the object side of the first lens, and f1 is the effective focal length of the first lens.More specifically, R1 and f1 is into one Step can meet 0.48≤R1/f1≤0.56.By the effective coke for controlling the radius of curvature and the first lens of the first lens object side Away from can be produced with balancing the first lens image side surface in the five rank spherical aberration contribution rates for controlling the first lens object side to a certain degree Five raw rank spherical aberrations, to control five rank spherical aberrations of the first lens within the scope of rational.
In the exemplary embodiment, the optical imaging system of the application can meet conditional TTL/ImgH < 1.65, In, TTL is the object side of the first lens to distance of the imaging surface on optical axis of optical imaging system, and ImgH is optical imagery system The half of effective pixel area diagonal line length on the imaging surface of system.More specifically, TTL and ImgH can further meet 1.46≤ TTL/ImgH≤1.61.Pass through effective pixel area on distance on the first lens object side to the axis of imaging surface of constraint and imaging surface The ratio of diagonal line length half comes while realizing the ultrathin of optical imaging system and high pixel.
In the exemplary embodiment, the optical imaging system of the application can meet 1.2 < CT6/CT7 < 1.9 of conditional, Wherein, CT6 is center thickness of the 6th lens on optical axis, and CT7 is center thickness of the 7th lens on optical axis.More specifically Ground, CT6 and CT7 can further meet 1.29≤CT6/CT7≤1.88.It is thick by the center for controlling the 6th lens and the 7th lens The ratio of degree, to control the distortion contribution amount of the 6th lens and the 7th lens in reasonable range so that each visual field is final Amount of distortion is under 2%, to avoid the needs of later stage software debugging.
In the exemplary embodiment, the optical imaging system of the application can meet conditional 0.4≤(R11+R12)/| R13-R14 |≤2.4, wherein R11 is the radius of curvature of the object side of the 6th lens, and R12 is the song of the image side surface of the 6th lens Rate radius, R13 are the radius of curvature of the object side of the 7th lens, and R14 is the radius of curvature of the image side surface of the 7th lens.More specifically Ground, R11, R12, R13 and R14 can further meet 0.40≤(R11+R12)/| R13-R14 |≤2.28.By rationally limiting Six lens and the radius of curvature of the 7th lens object side and image side surface, can be to the chief ray of each visual field of optical imaging system There is relatively reasonable control in the incidence angle of image planes, meets the requirement of Optical System Design chief ray incident angle.
In the exemplary embodiment, the optical imaging system of the application can meet 1.1 < of < CT1/TTL × 10 of conditional 1.6, wherein CT1 is center thickness of first lens on optical axis, and TTL is the object side of the first lens to optical imaging system Distance of the imaging surface on optical axis.More specifically, CT1 and TTL can further meet 1.34≤CT1/TTL × 10≤1.43. By controlling the range of center thickness of first lens on optical axis, the model of residual distortion after its balance can be reasonably controlled It encloses so that system is showed with good distortion.
In the exemplary embodiment, the optical imaging system of the application can meet 0.3 < DT51/DT71 < of conditional 0.7, wherein DT51 is effective half bore of maximum of the object side of the 5th lens, and DT71 is the maximum of the object side of the 7th lens Effective half bore.More specifically, DT51 and DT71 can further meet 0.45≤DT51/DT71≤0.55.By rationally limiting Effective half bore of maximum of 5th lens and the 7th lens object side, can effectively reduce the size of imaging system, meet it is small Typeization requires and promotes the resolving power of imaging system.
In the exemplary embodiment, the optical imaging system of the application can meet 0.3 < ET6/CT6 < 0.7 of conditional, Wherein, ET6 is the edge thickness of the 6th lens, and CT6 is center thickness of the 6th lens on optical axis.More specifically, ET6 and CT6 can further meet 0.48≤ET6/CT6≤0.66.By the edge thickness and the 6th lens of the 6th lens of control in optical axis On center thickness ratio so that system has good image quality, lower sensibility, is easy injection molding and to have Higher yield.
In the exemplary embodiment, optical imaging system may also include diaphragm, to promote the image quality of imaging system. Diaphragm can be arranged as required to any position between object side and image side, for example, diaphragm may be provided at object side and first thoroughly Between mirror.
Optionally, above-mentioned optical imaging system may also include optical filter for correcting color error ratio and/or 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 optical imaging system of the above embodiment of the application Piece.By each power of lens of reasonable distribution, face type, each lens center thickness and each lens between axis on spacing Deng, can effectively the volume of reduction system, reduce the susceptibility of system and improve the machinability of system so that optical imagery system System, which is more advantageous to, to be produced and processed and is applicable to portable electronic product.In addition, by the optical imaging system of above-mentioned configuration, Can also have the advantageous effect such as ultra-thin, miniaturization, large aperture, high imaging quality.
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 optical imaging system can be changed, to obtain each result and advantage described in this specification.Example Such as, although being described by taking seven lens as an example in embodiments, which is not limited to include seven Lens.If desired, the optical imaging system may also include the lens of other quantity.
The specific embodiment for the optical imaging system 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 optical imaging system of the embodiment of the present application 1.Fig. 1 is shown according to this Apply for the structural schematic diagram of the optical imaging system of embodiment 1.
As shown in Figure 1, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence 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 are thoroughly Mirror E6, the 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 positive light coke, 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 concave surface.6th lens E6 has positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has negative power, object side S13, as Side S14 is concave 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 show the surface types of each lens of the optical imaging system of embodiment 1, radius of curvature, thickness, material and Circular cone 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 -4.5000E-04 7.0560E-03 -1.5340E-02 1.7893E-02 -1.3180E-02 6.0210E-03 -1.6800E-03 2.5900E-04 -1.7000E-05
S2 -2.7330E-02 5.6521E-02 -7.0640E-02 5.6769E-02 -3.0090E-02 1.0191E-02 -2.0800E-03 2.2400E-04 -8.9000E-06
S3 -1.4390E-02 4.1193E-02 -5.7190E-02 5.5134E-02 -3.4790E-02 1.4390E-02 -3.7300E-03 5.4100E-04 -3.3000E-05
S4 2.9900E-03 6.1750E-03 1.2042E-02 -3.0790E-02 3.3819E-02 -1.7950E-02 3.1520E-03 8.9100E-04 -3.3000E-04
S5 1.1036E-02 -4.5000E-05 -4.2500E-03 1.3822E-02 -2.4960E-02 2.8550E-02 -1.8700E-02 6.5930E-03 -9.5000E-04
S6 2.6670E-03 -2.4800E-02 8.5779E-02 -1.8592E-01 2.5532E-01 -2.2067E-01 1.1701E-01 -3.4730E-02 4.4470E-03
S7 -3.3910E-02 -2.8150E-02 6.8609E-02 -1.4271E-01 1.7980E-01 -1.4377E-01 7.0857E-02 -1.9690E-02 2.3610E-03
S8 -5.5680E-02 2.0810E-02 -2.1700E-02 1.2513E-02 -6.8800E-03 3.4030E-03 -1.1300E-03 1.9700E-04 -1.1000E-05
S9 -4.6050E-02 1.6285E-02 -1.2680E-02 1.5102E-02 -1.4180E-02 7.2570E-03 -2.0700E-03 3.1100E-04 -1.9000E-05
S10 -1.7710E-02 -3.7890E-02 4.5747E-02 -2.9090E-02 1.1372E-02 -2.8800E-03 4.6600E-04 -4.4000E-05 1.8200E-06
S11 -5.5400E-03 -5.3000E-03 9.7300E-05 7.3700E-04 -5.1000E-04 1.5400E-04 -2.3000E-05 1.6300E-06 -4.6000E-08
S12 9.7310E-03 -1.0300E-03 2.1560E-03 -1.7000E-03 4.9600E-04 -7.3000E-05 5.6500E-06 -2.1000E-07 2.8200E-09
S13 -4.6410E-02 2.6360E-02 -8.3000E-03 1.8750E-03 -2.9000E-04 2.8200E-05 -1.7000E-06 5.6100E-08 -7.9000E-10
S14 -3.0240E-02 1.0470E-02 -2.7100E-03 4.2500E-04 -4.3000E-05 2.6000E-06 -6.9000E-08 -7.7000E-10 5.7400E-11
Table 2
Table 3 gives the effective focal length f1 to f7 of each lens in embodiment 1, total effective focal length f of optical imaging system, The object side S1 to imaging surface S17 of one lens E1 on the distance TTL and imaging surface S17 on optical axis effective pixel area it is diagonal The half ImgH of line length.
f1(mm) 4.88 f6(mm) 4.11
f2(mm) -8.63 f7(mm) -3.26
f3(mm) 17.28 f(mm) 5.71
f4(mm) -26.72 TTL(mm) 6.70
f5(mm) 799.90 ImgH(mm) 4.60
Table 3
Optical imaging system in embodiment 1 meets：
ImgH/ (f/EPD)=2.81mm, wherein ImgH is one of effective pixel area diagonal line length on imaging surface S17 Half, f are total effective focal length of optical imaging system, and EPD is the Entry pupil diameters of optical imaging system；
F123/f=1.08, wherein f123 is the combined focal length of the first lens E1, the second lens E2 and the third lens E3, f For total effective focal length of optical imaging system；
| f/f45 |+| f/f67 |=0.26, wherein f is total effective focal length of optical imaging system, and f45 is the 4th lens The combined focal length of E4 and the 5th lens E5, f67 are the combined focal length of the 6th lens E6 and the 7th lens E7；
(R9+R10)/| f5 |=0.01, wherein R9 is the radius of curvature of the 5th lens E5 objects side S9, and R10 is the 5th saturating The radius of curvature of mirror E5 image side surfaces S10, f5 are the effective focal length of the 5th lens E5；
R4/R3=0.60, wherein R4 is the radius of curvature of the second lens E2 image side surfaces S4, and R3 is the second lens E2 objects side The radius of curvature of face S3；
R1/f1=0.49, wherein R1 is the radius of curvature of the first lens E1 objects side S1, and f1 is having for the first lens E1 Imitate focal length；
TTL/ImgH=1.46, wherein TTL be the first lens E1 object side S1 to imaging surface S17 on optical axis away from From ImgH is the half of effective pixel area diagonal line length on imaging surface S17；
CT6/CT7=1.42, wherein CT6 is center thickness of the 6th lens E6 on optical axis, and CT7 is the 7th lens E7 Center thickness on optical axis；
(R11+R12)/| R13-R14 |=0.40, wherein R11 is the radius of curvature of the 6th lens E6 objects side S11, R12 For the radius of curvature of the 6th lens E6 image side surfaces S12, R13 is the radius of curvature of the 7th lens E7 objects side S13, and R14 is the 7th The radius of curvature of lens E7 image side surfaces S14；
CT1/TTL × 10=1.43, wherein CT1 is center thickness of the first lens E1 on optical axis, and TTL is first saturating Distances of the mirror E1 objects side S1 to imaging surface S17 on optical axis；
DT51/DT71=0.55, wherein effective half bore of maximum that DT51 is the 5th lens E5 objects side S9, DT71 are Effective half bore of maximum of 7th lens E7 objects side S13；
ET6/CT6=0.48, wherein ET6 is the edge thickness of the 6th lens E6, and CT6 is the 6th lens E6 on optical axis Center thickness.
Fig. 2A shows chromatic curve on the axis of the optical imaging system of embodiment 1, indicates the light warp of different wave length Deviateed by the converging focal point after system.Fig. 2 B show the astigmatism curve of the optical imaging system of embodiment 1, indicate meridian picture Face is bent and sagittal image surface bending.Fig. 2 C show the distortion curve of the optical imaging system of embodiment 1, indicate different image heights Corresponding distortion sizes values.Fig. 2 D show the ratio chromatism, curve of the optical imaging system of embodiment 1, indicate light via The deviation of different image heights after system on imaging surface.A to Fig. 2 D is it is found that optical imagery given by embodiment 1 according to fig. 2 System can realize good image quality.
Embodiment 2
Referring to Fig. 3 to Fig. 4 D descriptions according to the optical imaging system of the embodiment of the present application 2.In the present embodiment and following In embodiment, for brevity, by clipped description similar to Example 1.Fig. 3 is shown according to the embodiment of the present application 2 Optical imaging system structural schematic diagram.
As shown in figure 3, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence 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 are thoroughly Mirror E6, the 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 positive light coke, 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 convex 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 positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has negative power, object side S13, as Side S14 is concave 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 show the surface types of each lens of the optical imaging system of embodiment 2, radius of curvature, thickness, material and Circular cone 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 1.2400E-03 8.3100E-04 -2.8100E-03 3.7180E-03 -3.1200E-03 1.5460E-03 -4.6000E-04 7.3500E-05 -5.0000E-06
S2 -1.7410E-02 3.3277E-02 -4.1730E-02 3.5800E-02 -2.1740E-02 9.0250E-03 -2.4300E-03 3.8100E-04 -2.6000E-05
S3 -5.0600E-03 2.4009E-02 -3.2380E-02 3.1043E-02 -2.1600E-02 1.0837E-02 -3.6400E-03 7.2300E-04 -6.3000E-05
S4 5.6950E-03 7.3480E-03 1.9160E-03 -1.0910E-02 1.6346E-02 -1.3510E-02 6.8090E-03 -1.8700E-03 1.9700E-04
S5 7.5300E-03 1.1910E-03 3.7610E-03 -5.4700E-03 8.9350E-03 -7.8700E-03 4.4800E-03 -1.3600E-03 1.6200E-04
S6 -1.6400E-03 -3.3400E-03 1.6482E-02 -4.2140E-02 6.8441E-02 -6.6800E-02 3.9215E-02 -1.2670E-02 1.7500E-03
S7 -4.0760E-02 5.1830E-03 -3.6440E-02 6.3171E-02 -7.8720E-02 6.2742E-02 -3.1130E-02 8.7350E-03 -1.0800E-03
S8 -6.1020E-02 1.6233E-02 -4.7400E-03 -2.0660E-02 3.1979E-02 -2.3990E-02 1.0339E-02 -2.4400E-03 2.4600E-04
S9 -5.6930E-02 1.9504E-02 2.2160E-03 -1.9740E-02 1.9684E-02 -1.0870E-02 3.5920E-03 -6.6000E-04 5.2100E-05
S10 -3.5860E-02 8.9500E-03 1.2050E-03 -2.3800E-03 9.4600E-04 -1.8000E-04 1.5200E-05 -6.9000E-08 -4.4000E-08
S11 -8.8900E-03 -5.4400E-03 1.4400E-03 4.8100E-05 -1.9000E-04 5.2800E-05 -6.1000E-06 3.0400E-07 -4.8000E-09
S12 2.9053E-02 -1.6190E-02 6.1710E-03 -1.7200E-03 2.9600E-04 -3.0000E-05 1.7800E-06 -5.7000E-08 8.4600E-10
S13 -2.3670E-02 5.9660E-03 5.4200E-04 -3.7000E-04 6.3700E-05 -6.0000E-06 3.2600E-07 -9.9000E-09 1.3000E-10
S14 -2.7320E-02 7.1710E-03 -1.4100E-03 1.6200E-04 -8.6000E-06 -1.4000E-07 4.6200E-08 -2.3000E-09 3.9600E-11
Table 5
Table 6 gives the effective focal length f1 to f7 of each lens in embodiment 2, total effective focal length f of optical imaging system, The object side S1 to imaging surface S17 of one lens E1 on the distance TTL and imaging surface S17 on optical axis effective pixel area it is diagonal The half ImgH of line length.
f1(mm) 4.85 f6(mm) 4.46
f2(mm) -10.13 f7(mm) -3.02
f3(mm) 20.85 f(mm) 5.94
f4(mm) -40.44 TTL(mm) 6.90
f5(mm) -504.07 ImgH(mm) 4.60
Table 6
Fig. 4 A show chromatic curve on the axis of the optical imaging system of embodiment 2, indicate the light warp of different wave length Deviateed by the converging focal point after system.Fig. 4 B show the astigmatism curve of the optical imaging system of embodiment 2, indicate meridian picture Face is bent and sagittal image surface bending.Fig. 4 C show the distortion curve of the optical imaging system of embodiment 2, indicate different image heights Corresponding distortion sizes values.Fig. 4 D show the ratio chromatism, curve of the optical imaging system of embodiment 2, indicate light via The deviation of different image heights after system on imaging surface.According to Fig. 4 A to Fig. 4 D it is found that optical imagery given by embodiment 2 System can realize good image quality.
Embodiment 3
The optical imaging system according to the embodiment of the present application 3 is described referring to Fig. 5 to Fig. 6 D.Fig. 5 shows basis The structural schematic diagram of the optical imaging system of the embodiment of the present application 3.
As shown in figure 5, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence 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 are thoroughly Mirror E6, the 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 positive light coke, and object side S5 is Convex surface, image side surface S6 are convex surface.It is concave surface that 4th lens E4, which has positive light coke, object side S7, and image side surface S8 is convex 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 positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has negative power, object side S13, as Side S14 is concave 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 show the surface types of each lens of the optical imaging system of embodiment 3, radius of curvature, thickness, material and Circular cone 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 5.2500E-04 8.9700E-04 -2.7500E-03 3.3480E-03 -2.7400E-03 1.3690E-03 -4.2000E-04 7.0700E-05 -5.1000E-06
S2 -1.1400E-02 2.4225E-02 -3.0120E-02 2.5113E-02 -1.4650E-02 5.7790E-03 -1.4600E-03 2.1400E-04 -1.4000E-05
S3 -9.9000E-03 2.2438E-02 -2.5310E-02 2.1052E-02 -1.1950E-02 4.6280E-03 -1.1500E-03 1.6300E-04 -9.6000E-06
S4 4.4750E-03 5.5730E-03 -2.3100E-03 1.4130E-03 -6.2000E-05 3.2800E-04 -5.1000E-04 3.5400E-04 -9.0000E-05
S5 9.2110E-03 -1.6300E-03 1.8590E-03 9.6100E-04 -1.3500E-03 2.3800E-03 -1.7600E-03 7.3800E-04 -1.3000E-04
S6 -3.4000E-05 6.7590E-03 -3.2620E-02 7.1179E-02 -9.1440E-02 7.4207E-02 -3.6670E-02 1.0106E-02 -1.1900E-03
S7 -4.1100E-02 1.9190E-03 -2.8960E-02 4.4929E-02 -4.7850E-02 3.2857E-02 -1.4120E-02 3.4240E-03 -3.7000E-04
S8 -5.9020E-02 1.0156E-02 -6.5300E-03 -1.2140E-02 2.4131E-02 -1.9370E-02 8.3960E-03 -1.9400E-03 1.8800E-04
S9 -5.4890E-02 2.7154E-02 -2.0260E-02 8.1960E-03 -2.5000E-04 -1.4300E-03 6.7000E-04 -1.4000E-04 1.0700E-05
S10 -3.7210E-02 1.9723E-02 -1.0530E-02 4.6790E-03 -1.5600E-03 3.5200E-04 -5.1000E-05 4.2100E-06 -1.5000E-07
S11 -1.1500E-02 -9.0000E-04 -5.9000E-05 1.0800E-04 -6.9000E-05 1.1200E-05 2.0200E-07 -1.5000E-07 8.1500E-09
S12 2.8322E-02 -1.7140E-02 6.7210E-03 -1.7600E-03 2.7800E-04 -2.5000E-05 1.2800E-06 -3.1000E-08 2.2900E-10
S13 -1.7490E-02 2.1590E-03 1.4290E-03 -4.6000E-04 6.4100E-05 -5.2000E-06 2.4700E-07 -6.6000E-09 7.5500E-11
S14 -2.3860E-02 5.9720E-03 -1.1000E-03 1.2100E-04 -6.4000E-06 -5.6000E-08 2.5600E-08 -1.2000E-09 1.8900E-11
Table 8
Table 9 gives the effective focal length f1 to f7 of each lens in embodiment 3, total effective focal length f of optical imaging system, The object side S1 to imaging surface S17 of one lens E1 on the distance TTL and imaging surface S17 on optical axis effective pixel area it is diagonal The half ImgH of line length.
f1(mm) 4.46 f6(mm) 4.85
f2(mm) -9.24 f7(mm) -3.14
f3(mm) 45.12 f(mm) 6.39
f4(mm) 530.21 TTL(mm) 7.42
f5(mm) -40.87 ImgH(mm) 4.60
Table 9
Fig. 6 A show chromatic curve on the axis of the optical imaging system of embodiment 3, indicate the light warp of different wave length Deviateed by the converging focal point after system.Fig. 6 B show the astigmatism curve of the optical imaging system of embodiment 3, indicate meridian picture Face is bent and sagittal image surface bending.Fig. 6 C show the distortion curve of the optical imaging system of embodiment 3, indicate different image heights Corresponding distortion sizes values.Fig. 6 D show the ratio chromatism, curve of the optical imaging system of embodiment 3, indicate light via The deviation of different image heights after system on imaging surface.According to Fig. 6 A to Fig. 6 D it is found that optical imagery given by embodiment 3 System can realize good image quality.
Embodiment 4
The optical imaging system according to the embodiment of the present application 4 is described referring to Fig. 7 to Fig. 8 D.Fig. 7 shows basis The structural schematic diagram of the optical imaging system of the embodiment of the present application 4.
As shown in fig. 7, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence 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 are thoroughly Mirror E6, the 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 Concave surface, image side surface S6 are convex surface.It is concave surface that 4th lens E4, which has positive light coke, object side S7, and image side surface S8 is convex 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 positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has negative power, object side S13, as Side S14 is concave 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, the material of each lens of the optical imaging system of embodiment 4 And circular cone 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 8.3300E-04 2.1410E-03 -4.9600E-03 6.3150E-03 -5.1900E-03 2.6390E-03 -8.2000E-04 1.4000E-04 -1.0000E-05
S2 -1.0870E-02 1.7629E-02 -1.6460E-02 1.0881E-02 -5.3700E-03 1.8550E-03 -4.2000E-04 5.6100E-05 -3.4000E-06
S3 -1.2200E-02 1.5068E-02 -8.1300E-03 3.0310E-03 2.4200E-04 -8.5000E-04 4.1700E-04 -9.5000E-05 8.3300E-06
S4 5.2120E-03 8.6300E-04 1.8270E-03 2.3360E-03 -3.6000E-03 2.9340E-03 -1.3700E-03 4.3300E-04 -7.8000E-05
S5 1.1207E-02 -1.1020E-02 1.5637E-02 -1.6470E-02 1.7901E-02 -1.2140E-02 5.0590E-03 -1.1100E-03 9.3500E-05
S6 3.8710E-03 -1.9600E-03 -1.7830E-02 4.9084E-02 -6.3100E-02 4.9624E-02 -2.3550E-02 6.1720E-03 -6.8000E-04
S7 -3.6030E-02 -1.2150E-02 -7.9900E-03 2.0852E-02 -2.9980E-02 2.6058E-02 -1.3900E-02 4.0760E-03 -5.2000E-04
S8 -4.9960E-02 -1.5350E-02 2.6084E-02 -3.9990E-02 4.2105E-02 -2.7330E-02 1.0500E-02 -2.2100E-03 1.9900E-04
S9 -5.0120E-02 7.2060E-03 1.6330E-03 -3.8500E-03 4.6980E-03 -3.1800E-03 1.1070E-03 -1.9000E-04 1.3400E-05
S10 -3.3200E-02 1.2085E-02 -3.9700E-03 2.1960E-03 -1.2400E-03 4.0000E-04 -7.1000E-05 6.5000E-06 -2.4000E-07
S11 -9.7400E-03 -3.2800E-03 1.7070E-03 -6.4000E-04 1.5800E-04 -3.8000E-05 6.7800E-06 -6.4000E-07 2.3100E-08
S12 2.6231E-02 -1.6090E-02 6.0450E-03 -1.4000E-03 1.8100E-04 -1.1000E-05 -7.9000E-08 3.8900E-08 -1.3000E-09
S13 -1.7480E-02 3.1140E-03 7.2100E-04 -2.5000E-04 3.2700E-05 -2.3000E-06 9.2500E-08 -2.0000E-09 1.6400E-11
S14 -2.2310E-02 5.9960E-03 -1.1800E-03 1.4900E-04 -1.2000E-05 5.5500E-07 -1.4000E-08 1.5200E-10 -1.4000E-13
Table 11
Table 12 give the effective focal length f1 to f7 of each lens in embodiment 4, optical imaging system total effective focal length f, The object side S1 to imaging surface S17 of first lens E1 effective pixel areas pair on the distance TTL and imaging surface S17 on optical axis The half ImgH of linea angulata length.
f1(mm) 4.26 f6(mm) 5.04
f2(mm) -9.50 f7(mm) -3.24
f3(mm) -401.95 f(mm) 6.39
f4(mm) 190.00 TTL(mm) 7.39
f5(mm) -45.33 ImgH(mm) 4.60
Table 12
Fig. 8 A show chromatic curve on the axis of the optical imaging system of embodiment 4, indicate the light warp of different wave length Deviateed by the converging focal point after system.Fig. 8 B show the astigmatism curve of the optical imaging system of embodiment 4, indicate meridian picture Face is bent and sagittal image surface bending.Fig. 8 C show the distortion curve of the optical imaging system of embodiment 4, indicate different image heights Corresponding distortion sizes values.Fig. 8 D show the ratio chromatism, curve of the optical imaging system of embodiment 4, indicate light via The deviation of different image heights after system on imaging surface.According to Fig. 8 A to Fig. 8 D it is found that optical imagery given by embodiment 4 System can realize good image quality.
Embodiment 5
The optical imaging system according to the embodiment of the present application 5 is described referring to Fig. 9 to Figure 10 D.Fig. 9 shows basis The structural schematic diagram of the optical imaging system of the embodiment of the present application 5.
As shown in figure 9, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence 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 are thoroughly Mirror E6, the 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 Concave surface, image side surface S6 are convex surface.It is concave surface that 4th lens E4, which has negative power, object side S7, and image side surface S8 is convex 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 positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has negative power, object side S13, as Side S14 is concave 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, the material of each lens of the optical imaging system of embodiment 5 And circular cone 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 give the effective focal length f1 to f7 of each lens in embodiment 5, optical imaging system total effective focal length f, The object side S1 to imaging surface S17 of first lens E1 effective pixel areas pair on the distance TTL and imaging surface S17 on optical axis The half ImgH of linea angulata length.
f1(mm) 4.24 f6(mm) 5.15
f2(mm) -9.52 f7(mm) -3.25
f3(mm) -293.93 f(mm) 6.39
f4(mm) -699.98 TTL(mm) 7.40
f5(mm) -63.26 ImgH(mm) 4.60
Table 15
Figure 10 A show chromatic curve on the axis of the optical imaging system of embodiment 5, indicate the light warp of different wave length Deviateed by the converging focal point after system.Figure 10 B show the astigmatism curve of the optical imaging system of embodiment 5, indicate meridian Curvature of the image and sagittal image surface bending.Figure 10 C show the distortion curve of the optical imaging system of embodiment 5, indicate different The corresponding distortion sizes values of image height.Figure 10 D show the ratio chromatism, curve of the optical imaging system of embodiment 5, indicate light Line via the different image heights after system on imaging surface deviation.According to Figure 10 A to Figure 10 D it is found that given by embodiment 5 Optical imaging system can realize good image quality.
Embodiment 6
The optical imaging system according to the embodiment of the present application 6 is described referring to Figure 11 to Figure 12 D.Figure 11 shows root According to the structural schematic diagram of the optical imaging system of the embodiment of the present application 6.
As shown in figure 11, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence 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 are thoroughly Mirror E6, the 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 positive light coke, and object side S5 is Convex surface, image side surface S6 are concave surface.It is concave surface that 4th lens E4, which has positive light coke, object side S7, and image side surface S8 is convex surface.The It is convex surface that five lens E5, which have positive light coke, object side S9, and image side surface S10 is concave surface.6th lens E6 has positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has negative power, object side S13, as Side S14 is concave 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, the material of each lens of the optical imaging system of embodiment 6 And circular cone 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 9.8800E-04 1.4530E-03 -3.6000E-03 4.5660E-03 -3.7800E-03 1.9040E-03 -5.8000E-04 9.9100E-05 -7.2000E-06
S2 -1.0850E-02 1.7058E-02 -1.9490E-02 1.5039E-02 -8.3500E-03 3.2450E-03 -8.4000E-04 1.3200E-04 -9.4000E-06
S3 -4.7900E-03 1.5805E-02 -1.6750E-02 1.2405E-02 -6.1700E-03 2.4260E-03 -7.9000E-04 1.7900E-04 -1.9000E-05
S4 4.2500E-03 1.5794E-02 -1.6500E-02 2.1466E-02 -2.3650E-02 1.9402E-02 -1.0090E-02 2.9470E-03 -3.8000E-04
S5 7.0550E-03 5.2800E-03 -9.1900E-03 2.2229E-02 -3.0780E-02 2.6782E-02 -1.3740E-02 3.9080E-03 -4.8000E-04
S6 -4.5600E-03 4.6550E-03 -8.6700E-03 1.3717E-02 -1.1620E-02 4.3700E-03 7.9500E-04 -1.1600E-03 2.7800E-04
S7 -4.0720E-02 2.6293E-02 -9.5060E-02 1.7831E-01 -2.2434E-01 1.8048E-01 -9.0310E-02 2.5579E-02 -3.1700E-03
S8 -5.7880E-02 1.9843E-02 -2.5060E-02 1.3979E-02 -1.8100E-03 -3.2600E-03 2.3540E-03 -6.8000E-04 7.3700E-05
S9 -4.4670E-02 6.5660E-03 -4.6400E-03 -2.1000E-04 1.4880E-03 -1.1200E-03 4.9000E-04 -1.2000E-04 1.1000E-05
S10 -3.0020E-02 3.5830E-03 1.7350E-03 -1.4600E-03 4.6200E-04 -6.9000E-05 1.3900E-06 8.0600E-07 -6.6000E-08
S11 -1.4430E-02 -5.0000E-03 1.8900E-03 3.2100E-04 -3.7000E-04 7.5600E-05 -3.8000E-06 -3.2000E-07 2.8100E-08
S12 3.6931E-02 -2.6980E-02 1.0941E-02 -2.7200E-03 4.1000E-04 -3.8000E-05 2.1200E-06 -7.2000E-08 1.2100E-09
S13 -1.7040E-02 1.6990E-03 1.6630E-03 -5.2000E-04 7.4300E-05 -6.0000E-06 2.8800E-07 -7.5000E-09 8.0800E-11
S14 -2.2690E-02 4.8000E-03 -5.0000E-04 -5.1000E-05 2.1200E-05 -2.6000E-06 1.6100E-07 -5.0000E-09 6.2100E-11
Table 17
Table 18 give the effective focal length f1 to f7 of each lens in embodiment 6, optical imaging system total effective focal length f, The object side S1 to imaging surface S17 of first lens E1 effective pixel areas pair on the distance TTL and imaging surface S17 on optical axis The half ImgH of linea angulata length.
f1(mm) 4.71 f6(mm) 5.02
f2(mm) -9.13 f7(mm) -3.03
f3(mm) 23.59 f(mm) 5.89
f4(mm) 802.00 TTL(mm) 6.87
f5(mm) 1001.79 ImgH(mm) 4.60
Table 18
Figure 12 A show chromatic curve on the axis of the optical imaging system of embodiment 6, indicate the light warp of different wave length Deviateed by the converging focal point after system.Figure 12 B show the astigmatism curve of the optical imaging system of embodiment 6, indicate meridian Curvature of the image and sagittal image surface bending.Figure 12 C show the distortion curve of the optical imaging system of embodiment 6, indicate different Corresponding distortion sizes values at image height.Figure 12 D show the ratio chromatism, curve of the optical imaging system of embodiment 6, indicate Light via the different image heights after system on imaging surface deviation.According to Figure 12 A to Figure 12 D it is found that given by embodiment 6 Optical imaging system can realize good image quality.
Embodiment 7
The optical imaging system according to the embodiment of the present application 7 is described referring to Figure 13 to Figure 14 D.Figure 13 shows root According to the structural schematic diagram of the optical imaging system of the embodiment of the present application 7.
As shown in figure 13, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence 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 are thoroughly Mirror E6, the 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 Concave surface, image side surface S6 are convex surface.It is concave surface that 4th lens E4, which has negative power, object side S7, and image side surface S8 is convex surface.The It is convex surface that five lens E5, which have positive light coke, object side S9, and image side surface S10 is concave surface.6th lens E6 has positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has negative power, object side S13, as Side S14 is concave 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, the material of each lens of the optical imaging system of embodiment 7 And circular cone 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 1.0780E-03 6.9300E-04 -1.7400E-03 2.0620E-03 -1.6800E-03 8.3300E-04 -2.6000E-04 4.4200E-05 -3.4000E-06
S2 -8.3300E-03 1.4550E-02 -1.3320E-02 8.2830E-03 -3.8200E-03 1.2310E-03 -2.6000E-04 2.8800E-05 -1.2000E-06
S3 -1.4530E-02 1.8986E-02 -1.1250E-02 4.6650E-03 -3.6000E-04 -7.0000E-04 4.1500E-04 -1.1000E-04 1.2300E-05
S4 6.6200E-04 5.7260E-03 5.4200E-03 -1.4040E-02 2.0921E-02 -1.8200E-02 9.7190E-03 -2.8400E-03 3.3600E-04
S5 7.3700E-03 -4.4800E-03 6.2070E-03 -5.8700E-03 1.1004E-02 -1.0810E-02 6.4020E-03 -2.0200E-03 2.5900E-04
S6 4.6570E-03 -5.5200E-03 1.5060E-03 5.3210E-03 -6.1600E-03 4.0750E-03 -1.4000E-03 1.9900E-04 2.5800E-06
S7 -3.5700E-02 -1.3680E-02 6.8300E-04 3.4910E-03 -9.2700E-03 9.6230E-03 -5.6700E-03 1.7850E-03 -2.5000E-04
S8 -4.9890E-02 -2.4500E-02 4.3591E-02 -5.2770E-02 4.4194E-02 -2.4930E-02 8.8980E-03 -1.8100E-03 1.6100E-04
S9 -4.6210E-02 -1.9550E-02 3.6217E-02 -2.4240E-02 9.6310E-03 -2.5900E-03 4.7100E-04 -5.3000E-05 2.6300E-06
S10 -2.3410E-02 -1.2760E-02 2.2406E-02 -1.3220E-02 4.1870E-03 -7.9000E-04 8.5700E-05 -4.9000E-06 1.0600E-07
S11 -5.1100E-03 -8.7600E-03 5.5020E-03 -2.6500E-03 9.1400E-04 -2.2000E-04 3.4700E-05 -2.9000E-06 9.5900E-08
S12 2.8010E-02 -1.7180E-02 6.2940E-03 -1.4900E-03 2.1700E-04 -1.9000E-05 1.0700E-06 -3.5000E-08 5.7200E-10
S13 -1.7300E-02 2.9520E-03 7.6800E-04 -2.7000E-04 3.5300E-05 -2.6000E-06 1.1400E-07 -2.7000E-09 2.8300E-11
S14 -2.0720E-02 5.1620E-03 -9.0000E-04 9.6200E-05 -5.4000E-06 8.0800E-08 7.3600E-09 -4.0000E-10 5.9500E-12
Table 20
Table 21 give the effective focal length f1 to f7 of each lens in embodiment 7, optical imaging system total effective focal length f, The object side S1 to imaging surface S17 of first lens E1 effective pixel areas pair on the distance TTL and imaging surface S17 on optical axis The half ImgH of linea angulata length.
f1(mm) 4.25 f6(mm) 5.54
f2(mm) -9.25 f7(mm) -3.30
f3(mm) -802.58 f(mm) 6.39
f4(mm) -415.00 TTL(mm) 7.36
f5(mm) 800.07 ImgH(mm) 4.60
Table 21
Figure 14 A show chromatic curve on the axis of the optical imaging system of embodiment 7, indicate the light warp of different wave length Deviateed by the converging focal point after system.Figure 14 B show the astigmatism curve of the optical imaging system of embodiment 7, indicate meridian Curvature of the image and sagittal image surface bending.Figure 14 C show the distortion curve of the optical imaging system of embodiment 7, indicate different Corresponding distortion sizes values at image height.Figure 14 D show the ratio chromatism, curve of the optical imaging system of embodiment 7, indicate Light via the different image heights after system on imaging surface deviation.According to Figure 14 A to Figure 14 D it is found that given by embodiment 7 Optical imaging system can realize good image quality.
Embodiment 8
The optical imaging system according to the embodiment of the present application 8 is described referring to Figure 15 to Figure 16 D.Figure 15 shows root According to the structural schematic diagram of the optical imaging system of the embodiment of the present application 8.
As shown in figure 15, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence 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 are thoroughly Mirror E6, the 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 positive light coke, and object side S5 is Convex surface, image side surface S6 are concave surface.It is convex 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 positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.It is concave surface that 7th lens E7, which has negative power, object side S13, as Side S14 is concave 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, the material of each lens of the optical imaging system of embodiment 8 And circular cone 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 9.1500E-04 2.4310E-03 -5.3800E-03 6.7070E-03 -5.3800E-03 2.6620E-03 -8.1000E-04 1.3500E-04 -9.7000E-06
S2 -9.4100E-03 1.4657E-02 -1.5510E-02 1.0686E-02 -5.2900E-03 1.8610E-03 -4.6000E-04 7.0300E-05 -5.2000E-06
S3 -6.8000E-03 1.6701E-02 -1.4920E-02 9.3810E-03 -3.8400E-03 1.3450E-03 -4.6000E-04 1.2000E-04 -1.4000E-05
S4 3.2580E-03 1.7349E-02 -2.0540E-02 3.0793E-02 -3.6570E-02 3.0155E-02 -1.5440E-02 4.4350E-03 -5.6000E-04
S5 7.4370E-03 3.2400E-03 -5.1200E-03 1.5545E-02 -2.4350E-02 2.2484E-02 -1.1930E-02 3.4620E-03 -4.2000E-04
S6 -4.4700E-03 4.3890E-03 -6.2300E-03 4.5000E-03 3.7180E-03 -1.0490E-02 8.9970E-03 -3.5900E-03 5.7600E-04
S7 -3.6010E-02 8.3600E-03 -4.2610E-02 7.4690E-02 -8.8190E-02 6.5162E-02 -3.0010E-02 7.8880E-03 -9.4000E-04
S8 -5.1830E-02 1.1415E-02 -1.9810E-02 1.4591E-02 -5.9100E-03 5.0900E-04 6.3900E-04 -2.8000E-04 3.7400E-05
S9 -4.0830E-02 1.5390E-03 -9.3600E-03 1.0594E-02 -7.7400E-03 3.8750E-03 -1.1900E-03 1.9300E-04 -1.2000E-05
S10 -3.4990E-02 9.2880E-03 -7.0700E-03 6.0010E-03 -2.8000E-03 7.3000E-04 -1.1000E-04 9.3900E-06 -3.4000E-07
S11 -2.4560E-02 2.3360E-03 -2.1000E-03 2.1980E-03 -1.0400E-03 2.2200E-04 -2.1000E-05 6.1900E-07 1.0300E-08
S12 3.2842E-02 -2.3630E-02 9.4350E-03 -2.3100E-03 3.4600E-04 -3.2000E-05 1.8700E-06 -6.6000E-08 1.1200E-09
S13 -1.4960E-02 1.1980E-03 1.3620E-03 -3.7000E-04 4.2400E-05 -2.5000E-06 6.7300E-08 6.1100E-11 -2.8000E-11
S14 -2.0040E-02 4.1870E-03 -4.8000E-04 -1.2000E-05 9.6600E-06 -1.1000E-06 5.7300E-08 -1.4000E-09 9.9300E-12
Table 23
Table 24 give the effective focal length f1 to f7 of each lens in embodiment 8, optical imaging system total effective focal length f, The object side S1 to imaging surface S17 of first lens E1 effective pixel areas pair on the distance TTL and imaging surface S17 on optical axis The half ImgH of linea angulata length.
f1(mm) 4.67 f6(mm) 5.09
f2(mm) -9.00 f7(mm) -3.08
f3(mm) 21.95 f(mm) 5.89
f4(mm) -737.59 TTL(mm) 6.94
f5(mm) -157.54 ImgH(mm) 4.60
Table 24
Figure 16 A show chromatic curve on the axis of the optical imaging system of embodiment 8, indicate the light warp of different wave length Deviateed by the converging focal point after system.Figure 16 B show the astigmatism curve of the optical imaging system of embodiment 8, indicate meridian Curvature of the image and sagittal image surface bending.Figure 16 C show the distortion curve of the optical imaging system of embodiment 8, indicate different Corresponding distortion sizes values at image height.Figure 16 D show the ratio chromatism, curve of the optical imaging system of embodiment 8, indicate Light via the different image heights after system on imaging surface deviation.According to Figure 16 A to Figure 16 D it is found that given by embodiment 8 Optical imaging system can realize good image quality.
To sum up, embodiment 1 to embodiment 8 meets relationship shown in table 25 respectively.
Conditional embodiment 1 2 3 4 5 6 7 8
ImgH/(f/EPD)(mm) 2.81 2.63 2.44 2.44 2.44 2.65 2.44 2.65
f123/f 1.08 0.98 0.97 1.01 1.01 1.02 1.02 1.01
|f/f45|+|f/f67| 0.26 0.53 0.60 0.53 0.55 0.59 0.56 0.60
(R9+R10)/|f5| 0.01 0.03 0.64 0.54 0.35 0.01 0.02 0.07
R4/R3 0.60 0.61 0.50 0.40 0.38 0.56 0.36 0.54
R1/f1 0.49 0.48 0.56 0.56 0.56 0.49 0.56 0.49
TTL/ImgH 1.46 1.50 1.61 1.61 1.61 1.50 1.60 1.51
CT6/CT7 1.42 1.29 1.39 1.75 1.86 1.64 1.88 1.86
(R11+R12)/|R13-R14| 0.40 0.88 0.79 0.85 0.91 2.28 1.64 2.06
CT1/TTL*10 1.43 1.34 1.35 1.42 1.43 1.38 1.43 1.38
DT51/DT71 0.55 0.49 0.48 0.47 0.46 0.50 0.45 0.50
ET6/CT6 0.48 0.60 0.66 0.65 0.64 0.63 0.63 0.65
Table 25
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 optical imagery system described above System.
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. optical imaging system includes sequentially by object side to image side along optical axis：First lens, the second lens, the third lens, Four lens, the 5th lens, the 6th lens and the 7th lens,
It is characterized in that,
First lens have positive light coke；
Second lens have negative power；
The third lens have focal power；
4th lens have focal power；
It is concave surface that 5th lens, which have focal power, image side surface,；
6th lens have positive light coke, and object side and image side surface are convex surface；
It is concave surface that 7th lens, which have negative power, object side,；And
The half ImgH of effective pixel area diagonal line length, the optical imaging system on the imaging surface of the optical imaging system The Entry pupil diameters EPD of total effective focal length f and the optical imaging system meet ImgH/ (f/EPD) >=2.4mm.
2. optical imaging system according to claim 1, which is characterized in that first lens, second lens and The combined focal length f123 of the third lens meets 0.5 < f123/f < with total effective focal length f of the optical imaging system 1.5。
3. optical imaging system according to claim 1, which is characterized in that the curvature of the object side of first lens half Diameter R1 and the effective focal length f1 of first lens meet 0.2 < R1/f1 < 0.7.
4. optical imaging system according to claim 1, which is characterized in that the curvature of the image side surface of second lens half Diameter R4 and the radius of curvature R 3 of the object side of second lens meet 0.3 < R4/R3 < 0.8.
5. optical imaging system according to claim 1, which is characterized in that total effective focal length of the optical imaging system F, the group focus of the combined focal length f45 and the 6th lens and the 7th lens of the 4th lens and the 5th lens Meet away from f67 | f/f45 |+| f/f67 |≤0.6.
6. optical imaging system according to claim 1, which is characterized in that the curvature of the object side of the 5th lens half Diameter R9, the radius of curvature R 10 of image side surface of the 5th lens and the effective focal length f5 of the 5th lens meet 0 < (R9+ R10)/| f5 | < 0.7.
7. optical imaging system according to claim 1, which is characterized in that during the 6th lens are on the optical axis Heart thickness CT6 meets 1.2 < CT6/CT7 < 1.9 with center thickness CT7 of the 7th lens on the optical axis.
8. optical imaging system according to claim 5, which is characterized in that the curvature of the object side of the 6th lens half Diameter R11, the radius of curvature R 12 of image side surface of the 6th lens, the 7th lens object side radius of curvature R 13 and institute State the image side surface of the 7th lens radius of curvature R 14 meet 0.4≤(R11+R12)/| R13-R14 |≤2.4.
9. optical imaging system according to claim 1, which is characterized in that the maximum of the object side of the 5th lens has It imitates half bore DT51 and the effective half bore DT71 of maximum of the object side of the 7th lens meets 0.3 < DT51/DT71 < 0.7。
10. optical imaging system according to claim 1, which is characterized in that the edge thickness ET6 of the 6th lens with Center thickness CT6 of 6th lens on the optical axis meets 0.3 < ET6/CT6 < 0.7.
11. optical imaging system according to any one of claim 1 to 10, which is characterized in that first lens Object side to distance TTL and the optical imaging system of the imaging surface on the optical axis of the optical imaging system imaging The half ImgH of effective pixel area diagonal line length meets TTL/ImgH < 1.65 on face.
12. optical imaging system according to any one of claim 1 to 10, which is characterized in that first lens exist The object side of center thickness CT1 on the optical axis and first lens to the optical imaging system imaging surface described Distance TTL on optical axis meets 1.1 < of < CT1/TTL × 10 1.6.
13. optical imaging system includes sequentially by object side to image side along optical axis：First lens, the second lens, the third lens, 4th lens, the 5th lens, the 6th lens and the 7th lens,
It is characterized in that,
First lens have positive light coke；
Second lens have negative power；
The third lens have focal power；
4th lens have focal power；
It is concave surface that 5th lens, which have focal power, image side surface,；
6th lens have positive light coke, and object side and image side surface are convex surface；
It is concave surface that 7th lens, which have negative power, object side,；And
It is the radius of curvature R 11 of the object side of 6th lens, the radius of curvature R 12 of the image side surface of the 6th lens, described The radius of curvature R 13 of the object side of 7th lens and the radius of curvature R 14 of the image side surface of the 7th lens meet 0.4≤(R11 +R12)/|R13-R14|≤2.4。
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109358415A (en) * 2018-12-24 2019-02-19 浙江舜宇光学有限公司 Optical imaging lens
CN109828361A (en) * 2018-12-31 2019-05-31 瑞声科技(新加坡)有限公司 Camera optical camera lens
CN110262005A (en) * 2019-06-29 2019-09-20 瑞声科技(新加坡)有限公司 Camera optical camera lens
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WO2020038134A1 (en) * 2018-08-22 2020-02-27 浙江舜宇光学有限公司 Optical imaging system
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US20220299736A1 (en) * 2020-04-03 2022-09-22 Jiangxi Jingchao Optical Co., Ltd. Optical system, lens module, and terminal device
WO2022198418A1 (en) * 2021-03-22 2022-09-29 深圳市大疆创新科技有限公司 Optical system, photographic apparatus, gimbal, and movable platform

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111458849B (en) * 2020-06-16 2020-09-08 瑞声通讯科技(常州)有限公司 Image pickup optical lens

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM542776U (en) * 2016-05-13 2017-06-01 先進光電科技股份有限公司 Optical image capturing system
US20170227734A1 (en) * 2016-02-04 2017-08-10 Largan Precision Co., Ltd. Photographing optical lens assembly, image capturing device and electronic device
CN206710689U (en) * 2017-05-22 2017-12-05 浙江舜宇光学有限公司 Pick-up lens
CN107621683A (en) * 2017-10-26 2018-01-23 浙江舜宇光学有限公司 Optical imaging lens
CN208737089U (en) * 2018-08-22 2019-04-12 浙江舜宇光学有限公司 Optical imaging system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5963360B2 (en) * 2012-11-21 2016-08-03 カンタツ株式会社 Imaging lens
CN207123646U (en) * 2017-09-13 2018-03-20 浙江舜宇光学有限公司 Optical imaging lens
CN108732724B (en) * 2018-08-22 2023-06-30 浙江舜宇光学有限公司 Optical imaging system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170227734A1 (en) * 2016-02-04 2017-08-10 Largan Precision Co., Ltd. Photographing optical lens assembly, image capturing device and electronic device
TWM542776U (en) * 2016-05-13 2017-06-01 先進光電科技股份有限公司 Optical image capturing system
CN206710689U (en) * 2017-05-22 2017-12-05 浙江舜宇光学有限公司 Pick-up lens
CN107621683A (en) * 2017-10-26 2018-01-23 浙江舜宇光学有限公司 Optical imaging lens
CN208737089U (en) * 2018-08-22 2019-04-12 浙江舜宇光学有限公司 Optical imaging system

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* Cited by examiner, † Cited by third party
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US12055680B2 (en) 2018-12-24 2024-08-06 Zhejiang Sunny Optical Co., Ltd Optical imaging lens assembly
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US12003836B2 (en) 2019-08-08 2024-06-04 Jiangxi Jingchao Optical Co., Ltd. Optical system, lens module, and electronic device
WO2021022561A1 (en) * 2019-08-08 2021-02-11 南昌欧菲精密光学制品有限公司 Optical system, lens module, and electronic apparatus
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WO2021057228A1 (en) * 2019-09-25 2021-04-01 浙江舜宇光学有限公司 Optical imaging lens
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US11867880B2 (en) 2019-11-05 2024-01-09 Zhejiang Sunny Optical Co., Ltd Optical imaging system
US20220299736A1 (en) * 2020-04-03 2022-09-22 Jiangxi Jingchao Optical Co., Ltd. Optical system, lens module, and terminal device
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US11287616B2 (en) 2020-05-20 2022-03-29 Aac Optics Solutions Pte. Ltd. Camera optical lens including seven lenses of +−−+−+− or +−+−++− refractive powers
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