CN208506348U - Pick-up lens - Google Patents

Abstract

This application discloses a kind of pick-up lens, which sequentially includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens by object side to image side along optical axis.First lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens all have positive light coke or negative power；Second lens have positive light coke；The object side of first lens is concave surface, and image side surface is convex surface；And first lens all have airspace between two lens of arbitrary neighborhood into the 8th lens.Wherein, total effective focal length f of pick-up lens and the Entry pupil diameters EPD of pick-up lens meet f/EPD≤1.9.

Description

Pick-up lens

Technical field

This application involves a kind of pick-up lens, more specifically, this application involves a kind of pick-up lens including eight lens.

Background technique

With the development of science and technology, portable electronic product just tends to minimize, this also requires the camera shooting entrained by it Camera lens has lesser total length.Currently, the common photosensitive element of pick-up lens has charge coupled device (charge-coupled Device, CCD) and complementary metal oxide semiconductor (complementary metal-oxide semiconductor, CMOS) performance of imaging sensor is being continuously improved and its size is also being gradually reduced, thus corresponding pick-up lens It is also required to further meet the requirement of high image quality and miniaturization.

In order to meet miniaturization, the F-number (F number) that existing camera lens usually configures is 2.0 or 2.0 or more, with can be Realizing has good optical property while camera lens reduces size.But now with the gradually stringent of market demands, Yong Huxi Hope pick-up lens it is ultra-thin, miniaturization on the basis of can also have large aperture performance, with realize it is background blurring and can especially Shooting high quality graphic is remained to when insufficient light (such as rainy days, dusk), hand shaking, in this regard, 2.0 or 2.0 or more F Number can no longer meet the imaging requirements of higher order.

Utility model content

This application provides be applicable to portable electronic product, can at least solve or part solve it is in the prior art The pick-up lens of at least one above-mentioned disadvantage.

On the one hand, this application provides such a pick-up lens, which is sequentially wrapped along optical axis by object side to image side It includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens. Wherein, the first lens have positive light coke or negative power, and object side can be concave surface, and image side surface can be convex surface；Second lens There can be positive light coke；The third lens have positive light coke or negative power；4th lens have positive light coke or negative power； 5th lens have positive light coke or negative power；6th lens have positive light coke or negative power；7th lens have just Focal power or negative power；8th lens have positive light coke or negative power；And first lens it is any into the 8th lens Can have airspace between adjacent two lens.Wherein, the Entry pupil diameters of total the effective focal length f and pick-up lens of pick-up lens EPD can meet f/EPD≤1.9.

In one embodiment, the second lens can have positive light coke, and total effective focal length f and second of pick-up lens is saturating The effective focal length f2 of mirror can meet 0 < f2/f < 2.

In one embodiment, total effective focal length f of pick-up lens and the effective focal length f3 of the third lens can meet 1 < | f3/f | < 3.

In one embodiment, the curvature of the image side surface of the radius of curvature R 1 and the first lens of the object side of the first lens Radius R2 can meet 0 < R2/R1 < 2.

In one embodiment, the curvature of the image side surface of the radius of curvature R 5 and the third lens of the object side of the third lens Radius R6 can meet 1 < | R5/R6 | < 3.

In one embodiment, the object side of maximum the effective radius DT21 and the 4th lens of the object side of the second lens Maximum effective radius DT41 can meet 1 < DT21/DT41 < 1.5.

In one embodiment, the 4th lens can have positive light coke, and total effective focal length f and the 4th of pick-up lens is saturating The effective focal length f4 of mirror can meet 0 < f/f4 < 0.5.

In one embodiment, the 7th lens can have positive light coke, and image side surface can be convex surface.

In one embodiment, the 8th lens can have negative power, and image side surface can be concave surface.

In one embodiment, the first lens on optical axis center thickness CT1, the second lens are in the center on optical axis Thickness CT2 and the third lens can meet 0 < (CT1+CT3)/CT2 < 1.5 in the center thickness CT3 on optical axis.

In one embodiment, the first lens airspace of two lens of arbitrary neighborhood on optical axis into the 8th lens The airspace T78 of summation ∑ AT and the 7th lens and the 8th lens on optical axis can meet 3.5 < ∑ AT/T78 < 5.5.

In one embodiment, airspace T45 and the 5th lens on optical axis of the 4th lens and the 5th lens and Airspace T56 of 6th lens on optical axis can meet 1 < T45/T56 < 3.

In one embodiment, total effective focal length f of pick-up lens, the maximum angle of half field-of view HFOV of pick-up lens and Distance TTL of the imaging surface on optical axis of the object side of one lens to pick-up lens can meet 0 < f × TAN (HFOV)/TTL < 1。

On the other hand, this application provides such a pick-up lens, the camera lens along optical axis by object side to image side sequentially It include: that the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th are saturating Mirror.Wherein, the first lens have positive light coke or negative power, and object side can be concave surface, and image side surface can be convex surface；Second thoroughly Mirror can have positive light coke；The third lens have positive light coke or negative power；4th lens have positive light coke or negative light focus Degree；5th lens have positive light coke or negative power；6th lens have positive light coke or negative power；7th lens have Positive light coke or negative power；8th lens have positive light coke or negative power；And first lens into the 8th lens appoint Airspace can be had by anticipating between adjacent two lens.Wherein, the first lens are in center thickness CT1, the second lens on optical axis In on optical axis center thickness CT2 and the third lens in the center thickness CT3 on optical axis can meet 0 < (CT1+CT3)/CT2 < 1.5。

Another aspect, present invention also provides such a pick-up lens, the camera lens along optical axis by object side to image side according to Sequence includes: that the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th are saturating Mirror.Wherein, the first lens have positive light coke or negative power, and object side can be concave surface, and image side surface can be convex surface；Second thoroughly Mirror can have positive light coke；The third lens have positive light coke or negative power；4th lens have positive light coke or negative light focus Degree；5th lens have positive light coke or negative power；6th lens have positive light coke or negative power；7th lens have Positive light coke or negative power；8th lens have positive light coke or negative power；And first lens into the 8th lens appoint Airspace can be had by anticipating between adjacent two lens.Wherein, into the 8th lens, any two are adjacent has for the first lens The summation ∑ AT and the 7th lens of the airspace of positive light coke or the lens of negative power on optical axis and the 8th lens are in light Airspace T78 on axis can meet 3.5 < ∑ AT/T78 < 5.5.

Another aspect, present invention also provides such a pick-up lens, the camera lens along optical axis by object side to image side according to Sequence includes: that the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th are saturating Mirror.Wherein, the first lens have positive light coke or negative power, and object side can be concave surface, and image side surface can be convex surface；Second thoroughly Mirror can have positive light coke；The third lens have positive light coke or negative power；4th lens have positive light coke or negative light focus Degree；5th lens have positive light coke or negative power；6th lens have positive light coke or negative power；7th lens have Positive light coke or negative power；8th lens have positive light coke or negative power；And first lens into the 8th lens appoint Airspace can be had by anticipating between adjacent two lens.Wherein, the airspace T45 of the 4th lens and the 5th lens on optical axis The airspace T56 on optical axis can meet 1 < T45/T56 < 3 with the 5th lens and the 6th lens.

Another aspect, present invention also provides such a pick-up lens, the camera lens along optical axis by object side to image side according to Sequence includes: that the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th are saturating Mirror.Wherein, the first lens have positive light coke or negative power, and object side can be concave surface, and image side surface can be convex surface；Second thoroughly Mirror can have positive light coke；The third lens have positive light coke or negative power；4th lens have positive light coke or negative light focus Degree；5th lens have positive light coke or negative power；6th lens have positive light coke or negative power；7th lens have Positive light coke or negative power；8th lens have positive light coke or negative power；And first lens into the 8th lens appoint Airspace can be had by anticipating between adjacent two lens.Wherein, the maximum effective radius DT21 of the object side of the second lens and The maximum effective radius DT41 of the object side of four lens can meet 1 < DT21/DT41 < 1.5.

The application use eight lens, by each power of lens of reasonable distribution, face type, each lens center thickness And spacing etc. on the axis between each lens, so that above-mentioned pick-up lens has large aperture, ultra-thin, high resolution, good imaging At least one beneficial effect such as quality and miniaturization.

Detailed description of the invention

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 pick-up 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 pick-up lens of embodiment 1, astigmatism curve, distortion curve And ratio chromatism, curve；

Fig. 3 shows the structural schematic diagram of the pick-up lens according to the embodiment of the present application 2；

Fig. 4 A to Fig. 4 D respectively illustrates chromatic curve on the axis of the pick-up lens of embodiment 2, astigmatism curve, distortion curve And ratio chromatism, curve；

Fig. 5 shows the structural schematic diagram of the pick-up lens according to the embodiment of the present application 3；

Fig. 6 A to Fig. 6 D respectively illustrates chromatic curve on the axis of the pick-up lens of embodiment 3, astigmatism curve, distortion curve And ratio chromatism, curve；

Fig. 7 shows the structural schematic diagram of the pick-up lens according to the embodiment of the present application 4；

Fig. 8 A to Fig. 8 D respectively illustrates chromatic curve on the axis of the pick-up lens of embodiment 4, astigmatism curve, distortion curve And ratio chromatism, curve；

Fig. 9 shows the structural schematic diagram of the pick-up lens according to the embodiment of the present application 5；

Figure 10 A to Figure 10 D respectively illustrates chromatic curve on the axis of the pick-up lens of embodiment 5, astigmatism curve, distortion song Line and ratio chromatism, curve；

Figure 11 shows the structural schematic diagram of the pick-up lens according to the embodiment of the present application 6；

Figure 12 A to Figure 12 D respectively illustrates chromatic curve on the axis of the pick-up lens of embodiment 6, astigmatism curve, distortion song Line and ratio chromatism, curve；

Figure 13 shows the structural schematic diagram of the pick-up lens according to the embodiment of the present application 7；

Figure 14 A to Figure 14 D respectively illustrates chromatic curve on the axis of the pick-up lens of embodiment 7, astigmatism curve, distortion song Line and ratio chromatism, curve；

Figure 15 shows the structural schematic diagram of the pick-up lens according to the embodiment of the present application 8；

Figure 16 A to Figure 16 D respectively illustrates chromatic curve on the axis of the pick-up lens of embodiment 8, astigmatism curve, distortion song Line and ratio chromatism, curve；

Figure 17 shows the structural schematic diagrams according to the pick-up lens of the embodiment of the present application 9；

Figure 18 A to Figure 18 D respectively illustrates chromatic curve on the axis of the pick-up lens of embodiment 9, astigmatism curve, distortion song Line and ratio chromatism, curve；

Figure 19 shows the structural schematic diagram of the pick-up lens according to the embodiment of the present application 10；

Figure 20 A to Figure 20 D respectively illustrates chromatic curve on the axis of the pick-up lens of embodiment 10, astigmatism curve, distortion Curve and ratio chromatism, curve.

Specific embodiment

Various aspects of the reference attached drawing to the application are made more detailed description by the application in order to better understand.It answers Understand, the only description to the illustrative embodiments of 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.Stating "and/or" includes associated institute 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, without indicating 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 ease 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 using in bright book, but does not preclude the presence or addition of one or more Other feature, component, assembly unit and/or their combination.In addition, ought the statement of such as at least one of " ... " appear in institute When after the list of column 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 and their consistent meanings of meaning 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.

Pick-up lens according to the application illustrative embodiments may include such as eight lens with focal power, that is, First lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens.This eight Piece lens by object side to image side sequential, can have airspace between each adjacent lens along optical axis.

In the exemplary embodiment, the first lens have positive light coke or negative power, and object side can be concave surface, as Side can be convex surface；Second lens can have positive light coke；The third lens have positive light coke or negative power；4th lens tool There are positive light coke or negative power；5th lens have positive light coke or negative power；6th lens have positive light coke or negative Focal power；7th lens have positive light coke or negative power；8th lens have positive light coke or negative power.By reasonable The face type and focal power for controlling each lens are conducive to the advantage for making camera lens have large aperture.

In the exemplary embodiment, the object side of the second lens can be convex surface.

In the exemplary embodiment, the third lens can have negative power, and object side can be convex surface, and image side surface can be Concave surface.

In the exemplary embodiment, the 4th lens can have positive light coke, and object side can be convex surface, and image side surface can be Concave surface.

In the exemplary embodiment, the object side of the first lens can be concave surface, and image side surface can be convex surface；7th lens can With positive light coke, image side surface can be convex surface；8th lens can have negative power, and image side surface can be concave surface.Further Control the face type and focal power of the first lens, the 7th lens and the 8th lens, can each visual field of active balance optical system picture Matter improves the sensibility of optical system, advantageously ensures that the assemble stable of system, and realizes the production of mass.

In the exemplary embodiment, the pick-up lens of the application can meet conditional f/EPD≤1.9, wherein f is to take the photograph As total effective focal length of camera lens, EPD is the Entry pupil diameters of pick-up lens.More specifically, f and EPD can further meet f/EPD≤ 1.6, such as 1.41≤f/EPD≤1.49.Meet conditional f/EPD≤1.9, can make optical system that there is the advantage of large aperture, Imaging effect of the system under the weaker environment of light can be enhanced；Meanwhile can also reduce the aberration of peripheral field, it can get better Optical-modulation transfer function (MTF) performance, so as to improve whole image quality.

In the exemplary embodiment, the pick-up lens of the application can meet 0 < f2/f < 2 of conditional, wherein f is to take the photograph As total effective focal length of camera lens, f2 is the effective focal length of the second lens.More specifically, f2 and f can further meet 0.5≤f2/f ≤ 1.2, for example, 0.86≤f2/f≤1.01.The rationally effective focal length of the second lens of setting, makes it meet positive light coke, favorably In adjustment ray position, while being conducive to shorten the optics total length of pick-up lens.

In the exemplary embodiment, the pick-up lens of the application can meet 1 < of conditional | f3/f | < 3, wherein f is Total effective focal length of pick-up lens, f3 are the effective focal length of the third lens.More specifically, f3 and f can further meet 1.5≤| F3/f |≤2.5, such as 1.85≤| f3/f |≤2.11.The effective focal length of reasonable Arrangement the third lens, it is biggish to make it have Positive light coke may make optical system to have preferable curvature of field balanced capacity.

In the exemplary embodiment, the pick-up lens of the application can meet 0 < R2/R1 < 2 of conditional, wherein R1 is The radius of curvature of the object side of first lens, R2 are the radius of curvature of the image side surface of the first lens.More specifically, R2 and R1 is into one Step can meet 0.9≤R2/R1≤1.2, such as 1.02≤R2/R1≤1.06.The rationally object side and image side of the first lens of setting The radius of curvature in face can make optical system possess bigger aperture, so that the overall brightness of imaging can be improved.

In the exemplary embodiment, the pick-up lens of the application can meet 1 < of conditional | R5/R6 | < 3, wherein R5 For the radius of curvature of the object side of the third lens, R6 is the radius of curvature of the image side surface of the third lens.More specifically, R5 and R6 into One step can meet 2.0≤| R5/R6 |≤2.6, such as 2.02≤| R5/R6 |≤2.53.The object side of reasonable distribution the third lens With the radius of curvature of image side surface, the light tendency of outer visual field can be effectively controlled, enable optical system preferably matching chip Chief ray angle.

In the exemplary embodiment, the pick-up lens of the application can meet 0 < of conditional (CT1+CT3)/CT2 < 1.5, Wherein, CT1 is the first lens in the center thickness on optical axis, and CT2 is the second lens in the center thickness on optical axis, CT3 the Three lens are in the center thickness on optical axis.More specifically, CT1, CT3 and CT2 can further meet 0.5≤(CT1+CT3)/CT2 ≤ 0.9, such as 0.69≤(CT1+CT3)/CT2≤0.74.The first lens of reasonable distribution, the second lens and the third lens are in optical axis On center thickness, the size of optical system can be effectively reduced, it is excessive to avoid the volume of pick-up lens；Meanwhile it can also reduce The assembling difficulty of eyeglass simultaneously realizes higher space utilization rate.

In the exemplary embodiment, the pick-up lens of the application can meet 3.5 < ∑ AT/T78 < 5.5 of conditional, In, ∑ AT is the summation of the first lens airspace of two lens of arbitrary neighborhood on optical axis into the 8th lens, and T78 is the 7th The airspace of lens and the 8th lens on optical axis.More specifically, ∑ AT and T78 can further meet 4.06≤∑ AT/T78 ≤5.21.Meet 3.5 < ∑ AT/T78 < 5.5 of conditional, can effectively ensure that camera lens minimizes.Pass through reasonable layout adjacent lens Between air thickness, deflection of light can be made to tend to mitigate, reduce camera lens sensibility, while can also reduce the astigmatism, abnormal of system Change and color difference.

In the exemplary embodiment, the pick-up lens of the application can meet 1 < T45/T56 < 3 of conditional, wherein T45 For the airspace of the 4th lens and the 5th lens on optical axis, T56 is the air of the 5th lens and the 6th lens on optical axis Interval.More specifically, T45 and T56 can further meet 1.2≤T45/T56≤2.2, such as 1.46≤T45/T56≤2.06. Rationally the 4th lens of control, the airspace of the 5th lens and the 6th lens these three lens on optical axis, it is ensured that optics member There is good processing gap between part, and can guarantee preferable optical path deviation in system.

In the exemplary embodiment, the pick-up lens of the application can meet 0 < f × TAN (HFOV) of conditional/TTL < 1, wherein f is total effective focal length of pick-up lens, and HFOV is the maximum angle of half field-of view of pick-up lens, and TTL is the object of the first lens Distance of the side to imaging surface on optical axis.More specifically, f, HFOV and TTL can further meet 0.3≤f × TAN (HFOV)/ TTL≤0.7, such as 0.49≤f × TAN (HFOV)/TTL≤0.50.The effective focal length of reasonable distribution optical system, maximum field of view Angle and optics overall length, can effectively reduce system dimension, to guarantee that camera lens has compact dimensioning characteristic.

In the exemplary embodiment, the pick-up lens of the application can meet 1 < DT21/DT41 < 1.5 of conditional, In, DT21 is the maximum effective radius of the object side of the second lens, and DT41 is the maximum effective radius of the object side of the 4th lens. More specifically, DT21 and DT41 can further meet 1 DT21/DT41≤1.3 <, such as 1.16≤DT21/DT41≤1.21.It closes The ratio of the maximum effective radius of the object side of the maximum effective radius and the 4th lens of the object side of reason the second lens of control, can The flexion ability for effectively slowing down optical system front end light, reduces the sensibility of optical system, and the color of recoverable optical system It dissipates.

In the exemplary embodiment, the pick-up lens of the application can meet 0 < f/f4 < 0.5 of conditional, wherein f is Total effective focal length of pick-up lens, f4 are the effective focal length of the 4th lens.More specifically, f and f4 can further meet 0.09≤ f/f4≤0.29.The rationally ratio of the total effective focal length and the 4th lens effective focal length of control pick-up lens, can be by the 4th lens The control of spherical aberration contribution amount in reasonable level so that visual field obtains good image quality on axis.

In the exemplary embodiment, above-mentioned pick-up lens may also include at least one diaphragm, to promote the imaging of camera lens Quality.Optionally, diaphragm may be provided between the first lens and the second lens.

Optionally, above-mentioned pick-up lens may also include the optical filter for correcting color error ratio and/or be located at for protecting The protection glass of photosensitive element on imaging surface.

Multi-disc eyeglass, such as described above eight can be used according to the pick-up 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 pick-up lens is more advantageous In producing and processing and be applicable to portable electronic product.Pick-up lens through the above configuration can also have large aperture, surpass The beneficial effects such as thin, high resolution, good image quality and miniaturization.

In presently filed embodiment, each lens mostly use aspherical mirror.The characteristics of non-spherical lens, is: from lens To lens perimeter, curvature is consecutive variations at center.With the spherical lens from lens centre to lens perimeter with constant curvature Difference, non-spherical lens have more preferably radius of curvature characteristic, have the advantages that improve and distort aberration and improvement astigmatic image error.It adopts 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 pick-up lens can be changed, to obtain each result and advantage described in this specification.Though for example, It is so described by taking eight lens as an example in embodiments, but the pick-up lens is not limited to include eight lens.If It needs, which may also include the lens of other quantity.

The specific embodiment for being applicable to the pick-up lens of above embodiment is further described with reference to the accompanying drawings.

Embodiment 1

Referring to Fig. 1 to Fig. 2 D description according to the pick-up lens of the embodiment of the present application 1.Fig. 1 is shown according to the application The structural schematic diagram of the pick-up lens of embodiment 1.

As shown in Figure 1, sequentially being wrapped along optical axis by object side to image side according to the pick-up lens of the application illustrative embodiments Include: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.

First lens E1 has positive light coke, and object side S1 is concave surface, and image side surface S2 is convex surface.Second lens E2 has Positive light coke, 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.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has negative power, Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged On the S19 of face.

Table 1 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the pick-up 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 S1 and image side surface S2 of the first lens E1 is spherical surface, the second lens E2 to the 8th lens The object side of any one lens in E8 and image side surface are aspherical.In the present embodiment, the face type x of each non-spherical lens It is available but be not limited to following aspherical formula and be 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, inverse that paraxial curvature c is upper 1 mean curvature radius R of table)；K be circular cone coefficient ( It has been provided in table 1)；Ai is the correction factor of aspherical i-th-th rank.The following table 2 give can be used for it is each aspherical in embodiment 1 The high-order coefficient A of mirror surface S3-S16₄、A₆、A₈、A₁₀、A₁₂、A₁₄、A₁₆、A₁₈And A₂₀。

Table 2

Table 3 provide effective pixel area diagonal line length on the imaging surface S19 of pick-up 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 S19 on optical axis), maximum half field-of-view Angle HFOV, F-number Fno, total effective focal length f and each lens effective focal length f1 to f8.

ImgH(mm)	3.00	f3(mm)	-8.82
				TTL(mm)	5.90	f4(mm)	17.32
HFOV(°)	34.8	f5(mm)	63.75
				Fno	1.41	f6(mm)	-23.76
f(mm)	4.18	f7(mm)	3.69
				f1(mm)	594.23	f8(mm)	-2.67
f2(mm)	4.21

Table 3

Pick-up lens in embodiment 1 meets:

F/EPD=1.41, wherein f is total effective focal length of pick-up lens, and EPD is the Entry pupil diameters of pick-up lens；

F2/f=1.01, wherein f is total effective focal length of pick-up lens, and f2 is the effective focal length of the second lens E2；

| f3/f |=2.11, wherein f is total effective focal length of pick-up lens, and f3 is the effective focal length of the third lens E3；

R2/R1=1.03, wherein R1 is the radius of curvature of the object side S1 of the first lens E1, and R2 is the first lens E1's The radius of curvature of image side surface S2；

| R5/R6 |=2.13, wherein R5 is the radius of curvature of the object side S5 of the third lens E3, and R6 is the third lens E3 Image side surface S6 radius of curvature；

(CT1+CT3)/CT2=0.73, wherein CT1 is the first lens E1 in the center thickness on optical axis, CT2 second For lens E2 in the center thickness on optical axis, CT3 is the third lens E3 in the center thickness on optical axis；

∑ AT/T78=4.89, wherein ∑ AT be the first lens E1 into the 8th lens E8 two lens of arbitrary neighborhood in light The summation of airspace on axis, T78 are airspace of the 7th lens E7 and the 8th lens E8 on optical axis；

T45/T56=1.46, wherein T45 is airspace of the 4th lens E4 and the 5th lens E5 on optical axis, T56 For the airspace of the 5th lens E5 and the 6th lens E6 on optical axis；

F × TAN (HFOV)/TTL=0.49, wherein f is total effective focal length of pick-up lens, and HFOV is pick-up lens Maximum angle of half field-of view, TTL are distance of the object side S1 of the first lens E1 to imaging surface on optical axis；

DT21/DT41=1.18, wherein DT21 is the maximum effective radius of the object side S3 of the second lens E2, and DT41 is The maximum effective radius of the object side S7 of 4th lens E4；

F/f4=0.24, wherein f is total effective focal length of pick-up lens, and f4 is the effective focal length of the 4th lens E4.

Fig. 2A shows chromatic curve on the axis of the pick-up lens of embodiment 1, indicates the light of different wave length via mirror Converging focal point after head deviates.Fig. 2 B shows the astigmatism curve of the pick-up lens of embodiment 1, indicate meridianal image surface bending and Sagittal image surface bending.Fig. 2 C shows the distortion curve of the pick-up lens of embodiment 1, indicates distortion corresponding to different image heights Sizes values.Fig. 2 D shows the ratio chromatism, curve of the pick-up 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 pick-up lens given by embodiment 1 can be realized it is good Image quality.

Embodiment 2

Referring to Fig. 3 to Fig. 4 D description according to the pick-up 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 shows taking the photograph according to the embodiment of the present application 2 As the structural schematic diagram of camera lens.

As shown in figure 3, sequentially being wrapped along optical axis by object side to image side according to the pick-up lens of the application illustrative embodiments Include: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.

First lens E1 has positive light coke, and object side S1 is concave surface, and image side surface S2 is convex surface.Second lens E2 has Positive light coke, 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.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has negative power, Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged On the S19 of face.

Table 4 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the pick-up 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 S1 and image side surface S2 of the first lens E1 is spherical surface, the second lens The object side of any one lens of the E2 into the 8th lens E8 and image side surface are aspherical.Table 5, which is shown, can be used for implementing The high-order coefficient of each aspherical mirror in example 2, wherein each aspherical face type can be by the formula (1) that provides in above-described embodiment 1 It limits.

Table 5

Table 6 provide effective pixel area diagonal line length on the imaging surface S19 of pick-up 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 f8。

ImgH(mm)	3.00	f3(mm)	-8.56
				TTL(mm)	5.90	f4(mm)	16.12
HFOV(°)	34.6	f5(mm)	64.39
				Fno	1.48	f6(mm)	-21.06
f(mm)	4.22	f7(mm)	3.79
				f1(mm)	624.63	f8(mm)	-2.71
f2(mm)	4.17

Table 6

Fig. 4 A shows chromatic curve on the axis of the pick-up lens of embodiment 2, indicates the light of different wave length via mirror Converging focal point after head deviates.Fig. 4 B shows the astigmatism curve of the pick-up lens of embodiment 2, indicate meridianal image surface bending and Sagittal image surface bending.Fig. 4 C shows the distortion curve of the pick-up lens of embodiment 2, indicates distortion corresponding to different image heights Sizes values.Fig. 4 D shows the ratio chromatism, curve of the pick-up 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 pick-up lens given by embodiment 2 can be realized it is good Image quality.

Embodiment 3

The pick-up lens according to the embodiment of the present application 3 is described referring to Fig. 5 to Fig. 6 D.Fig. 5 is shown according to this Shen Please embodiment 3 pick-up lens structural schematic diagram.

As shown in figure 5, sequentially being wrapped along optical axis by object side to image side according to the pick-up lens of the application illustrative embodiments Include: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.

First lens E1 has positive light coke, and object side S1 is concave surface, and image side surface S2 is convex surface.Second lens E2 has Positive light coke, 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.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is convex surface, 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.7th lens E7 has positive light coke, and object side S13 is convex surface, as Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged On the S19 of face.

Table 7 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the pick-up 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 S1 and image side surface S2 of the first lens E1 is spherical surface, the second lens The object side of any one lens of the E2 into the 8th lens E8 and image side surface are aspherical.Table 8, which is shown, can be used for implementing The high-order coefficient of each aspherical mirror in example 3, wherein each aspherical face type can be by the formula (1) that provides in above-described embodiment 1 It limits.

Table 8

Table 9 provide effective pixel area diagonal line length on the imaging surface S19 of pick-up 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 f8。

Table 9

Fig. 6 A shows chromatic curve on the axis of the pick-up lens of embodiment 3, indicates the light of different wave length via mirror Converging focal point after head deviates.Fig. 6 B shows the astigmatism curve of the pick-up lens of embodiment 3, indicate meridianal image surface bending and Sagittal image surface bending.Fig. 6 C shows the distortion curve of the pick-up lens of embodiment 3, indicates distortion corresponding to different image heights Sizes values.Fig. 6 D shows the ratio chromatism, curve of the pick-up 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 pick-up lens given by embodiment 3 can be realized it is good Image quality.

Embodiment 4

The pick-up lens according to the embodiment of the present application 4 is described referring to Fig. 7 to Fig. 8 D.Fig. 7 is shown according to this Shen Please embodiment 4 pick-up lens structural schematic diagram.

As shown in fig. 7, sequentially being wrapped along optical axis by object side to image side according to the pick-up lens of the application illustrative embodiments Include: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.

First lens E1 has positive light coke, and object side S1 is concave surface, and image side surface S2 is convex surface.Second lens E2 has Positive light coke, 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.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is convex surface, 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 concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged On the S19 of face.

Table 10 shows surface type, radius of curvature, thickness, material and the circle of each lens of the pick-up 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 S1 and image side surface S2 of the first lens E1 is spherical surface, and second thoroughly The object side of any one lens of the mirror E2 into the 8th lens E8 and image side surface are aspherical.Table 11, which is shown, can be used for reality Apply the high-order coefficient of each aspherical mirror in example 4, wherein each aspherical face type can be by the formula that provides in above-described embodiment 1 (1) it limits.

Table 11

Table 12 provide effective pixel area diagonal line length on the imaging surface S19 of pick-up 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 f8。

ImgH(mm)	3.00	f3(mm)	-8.64
				TTL(mm)	5.90	f4(mm)	15.11
HFOV(°)	34.6	f5(mm)	42.32
				Fno	1.48	f6(mm)	-16.57
f(mm)	4.20	f7(mm)	3.45
				f1(mm)	495.69	f8(mm)	-2.49
f2(mm)	4.19

Table 12

Fig. 8 A shows chromatic curve on the axis of the pick-up lens of embodiment 4, indicates the light of different wave length via mirror Converging focal point after head deviates.Fig. 8 B shows the astigmatism curve of the pick-up lens of embodiment 4, indicate meridianal image surface bending and Sagittal image surface bending.Fig. 8 C shows the distortion curve of the pick-up lens of embodiment 4, indicates distortion corresponding to different image heights Sizes values.Fig. 8 D shows the ratio chromatism, curve of the pick-up 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 pick-up lens given by embodiment 4 can be realized it is good Image quality.

Embodiment 5

The pick-up lens according to the embodiment of the present application 5 is described referring to Fig. 9 to Figure 10 D.Fig. 9 is shown according to this Shen Please embodiment 5 pick-up lens structural schematic diagram.

As shown in figure 9, sequentially being wrapped along optical axis by object side to image side according to the pick-up lens of the application illustrative embodiments Include: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.

First lens E1 has positive light coke, and object side S1 is concave surface, and image side surface S2 is convex surface.Second lens E2 has Positive light coke, 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.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is concave surface, 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 concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged On the S19 of face.

Table 13 shows surface type, radius of curvature, thickness, material and the circle of each lens of the pick-up 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 S1 and image side surface S2 of the first lens E1 is spherical surface, and second thoroughly The object side of any one lens of the mirror E2 into the 8th lens E8 and image side surface are aspherical.Table 14, which is shown, can be used for reality Apply the high-order coefficient of each aspherical mirror in example 5, wherein each aspherical face type can be by the formula that provides in above-described embodiment 1 (1) it limits.

Table 14

Table 15 provide effective pixel area diagonal line length on the imaging surface S19 of pick-up 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 f8。

ImgH(mm)	3.00	f3(mm)	-8.26
				TTL(mm)	5.90	f4(mm)	15.20
HFOV(°)	34.9	f5(mm)	39.79
				Fno	1.48	f6(mm)	-16.97
f(mm)	4.16	f7(mm)	3.40
				f1(mm)	483.01	f8(mm)	-2.42
f2(mm)	4.12

Table 15

Figure 10 A shows chromatic curve on the axis of the pick-up lens of embodiment 5, indicates the light of different wave length via mirror Converging focal point after head deviates.Figure 10 B shows the astigmatism curve of the pick-up lens of embodiment 5, indicates meridianal image surface bending It is bent with sagittal image surface.Figure 10 C shows the distortion curve of the pick-up lens of embodiment 5, indicates corresponding to different image heights Distort sizes values.Figure 10 D shows the ratio chromatism, curve of the pick-up 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 pick-up lens given by embodiment 5 can be real Existing good image quality.

Embodiment 6

The pick-up lens according to the embodiment of the present application 6 is described referring to Figure 11 to Figure 12 D.Figure 11 is shown according to this Apply for the structural schematic diagram of the pick-up lens of embodiment 6.

As shown in figure 11, it is sequentially wrapped along optical axis by object side to image side according to the pick-up lens of the application illustrative embodiments Include: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.

First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is convex surface.Second lens E2 has Positive light coke, object side S3 are convex 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.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has negative power, Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged On the S19 of face.

Table 16 shows surface type, radius of curvature, thickness, material and the circle of each lens of the pick-up 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 S1 and image side surface S2 of the first lens E1 is spherical surface, and second thoroughly The object side of any one lens of the mirror E2 into the 8th lens E8 and image side surface are aspherical.Table 17, which is shown, can be used for reality Apply the high-order coefficient of each aspherical mirror in example 6, wherein each aspherical face type can be by the formula that provides in above-described embodiment 1 (1) it limits.

Table 17

Table 18 provide effective pixel area diagonal line length on the imaging surface S19 of pick-up 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 f8。

ImgH(mm)	3.00	f3(mm)	-8.56
				TTL(mm)	5.88	f4(mm)	45.54
HFOV(°)	35.0	f5(mm)	77.07
				Fno	1.48	f6(mm)	-17.88
f(mm)	4.15	f7(mm)	3.17
				f1(mm)	-274.94	f8(mm)	-2.33
f2(mm)	3.55

Table 18

Figure 12 A shows chromatic curve on the axis of the pick-up lens of embodiment 6, indicates the light of different wave length via mirror Converging focal point after head deviates.Figure 12 B shows the astigmatism curve of the pick-up lens of embodiment 6, indicates meridianal image surface bending It is bent with sagittal image surface.Figure 12 C shows the distortion curve of the pick-up lens of embodiment 6, indicates corresponding to different image heights Distort sizes values.Figure 12 D shows the ratio chromatism, curve of the pick-up 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 pick-up lens given by embodiment 6 can be real Existing good image quality.

Embodiment 7

The pick-up lens according to the embodiment of the present application 7 is described referring to Figure 13 to Figure 14 D.Figure 13 is shown according to this Apply for the structural schematic diagram of the pick-up lens of embodiment 7.

As shown in figure 13, it is sequentially wrapped along optical axis by object side to image side according to the pick-up lens of the application illustrative embodiments Include: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.

First lens E1 has positive light coke, and object side S1 is concave surface, and image side surface S2 is convex surface.Second lens E2 has Positive light coke, 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.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is convex surface, 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 concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged On the S19 of face.

Table 19 shows surface type, radius of curvature, thickness, material and the circle of each lens of the pick-up 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 S1 and image side surface S2 of the first lens E1 is spherical surface, and second thoroughly The object side of any one lens of the mirror E2 into the 8th lens E8 and image side surface are aspherical.Table 20, which is shown, can be used for reality Apply the high-order coefficient of each aspherical mirror in example 7, wherein each aspherical face type can be by the formula that provides in above-described embodiment 1 (1) it limits.

Table 20

Table 21 provide effective pixel area diagonal line length on the imaging surface S19 of pick-up 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 f8。

ImgH(mm)	3.00	f3(mm)	-7.95
				TTL(mm)	5.87	f4(mm)	17.51
HFOV(°)	34.8	f5(mm)	152.12
				Fno	1.48	f6(mm)	95.50
f(mm)	4.21	f7(mm)	4.67
				f1(mm)	716.74	f8(mm)	-2.85
f2(mm)	4.07

Table 21

Figure 14 A shows chromatic curve on the axis of the pick-up lens of embodiment 7, indicates the light of different wave length via mirror Converging focal point after head deviates.Figure 14 B shows the astigmatism curve of the pick-up lens of embodiment 7, indicates meridianal image surface bending It is bent with sagittal image surface.Figure 14 C shows the distortion curve of the pick-up lens of embodiment 7, indicates corresponding to different image heights Distort sizes values.Figure 14 D shows the ratio chromatism, curve of the pick-up 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 pick-up lens given by embodiment 7 can be real Existing good image quality.

Embodiment 8

The pick-up lens according to the embodiment of the present application 8 is described referring to Figure 15 to Figure 16 D.Figure 15 is shown according to this Apply for the structural schematic diagram of the pick-up lens of embodiment 8.

As shown in figure 15, it is sequentially wrapped along optical axis by object side to image side according to the pick-up lens of the application illustrative embodiments Include: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.

First lens E1 has positive light coke, and object side S1 is concave surface, and image side surface S2 is convex surface.Second lens E2 has Positive light coke, 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.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has negative power, Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged On the S19 of face.

Table 22 shows surface type, radius of curvature, thickness, material and the circle of each lens of the pick-up 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 S1 and image side surface S2 of the first lens E1 is spherical surface, and second thoroughly The object side of any one lens of the mirror E2 into the 8th lens E8 and image side surface are aspherical.Table 23, which is shown, can be used for reality Apply the high-order coefficient of each aspherical mirror in example 8, wherein each aspherical face type can be by the formula that provides in above-described embodiment 1 (1) it limits.

Table 23

Table 24 provide effective pixel area diagonal line length on the imaging surface S19 of pick-up 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 f8。

Table 24

Figure 16 A shows chromatic curve on the axis of the pick-up lens of embodiment 8, indicates the light of different wave length via mirror Converging focal point after head deviates.Figure 16 B shows the astigmatism curve of the pick-up lens of embodiment 8, indicates meridianal image surface bending It is bent with sagittal image surface.Figure 16 C shows the distortion curve of the pick-up lens of embodiment 8, indicates corresponding to different image heights Distort sizes values.Figure 16 D shows the ratio chromatism, curve of the pick-up 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 pick-up lens given by embodiment 8 can be real Existing good image quality.

Embodiment 9

The pick-up lens according to the embodiment of the present application 9 is described referring to Figure 17 to Figure 18 D.Figure 17 shows according to this Apply for the structural schematic diagram of the pick-up lens of embodiment 9.

As shown in figure 17, it is sequentially wrapped along optical axis by object side to image side according to the pick-up lens of the application illustrative embodiments Include: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.

First lens E1 has positive light coke, and object side S1 is concave surface, and image side surface S2 is convex surface.Second lens E2 has Positive light coke, 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.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is convex surface, 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.7th lens E7 has positive light coke, and object side S13 is convex surface, as Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is convex surface, and image side surface S16 is concave surface.Optical filter E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged On the S19 of face.

Table 25 shows surface type, radius of curvature, thickness, material and the circle of each lens of the pick-up 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 S1 and image side surface S2 of the first lens E1 is spherical surface, and second thoroughly The object side of any one lens of the mirror E2 into the 8th lens E8 and image side surface are aspherical.Table 26, which is shown, can be used for reality Apply the high-order coefficient of each aspherical mirror in example 9, wherein each aspherical face type can be by the formula that provides in above-described embodiment 1 (1) it limits.

Table 26

Table 27 provide effective pixel area diagonal line length on the imaging surface S19 of pick-up 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 f8。

ImgH(mm)	2.70	f3(mm)	-8.09
				TTL(mm)	5.87	f4(mm)	16.34
HFOV(°)	34.8	f5(mm)	26.41
				Fno	1.47	f6(mm)	-27.22
f(mm)	4.18	f7(mm)	4.25
				f1(mm)	759.07	f8(mm)	-2.71
f2(mm)	4.12

Table 27

Figure 18 A shows chromatic curve on the axis of the pick-up lens of embodiment 9, indicates the light of different wave length via mirror Converging focal point after head deviates.Figure 18 B shows the astigmatism curve of the pick-up lens of embodiment 9, indicates meridianal image surface bending It is bent with sagittal image surface.Figure 18 C shows the distortion curve of the pick-up lens of embodiment 9, indicates corresponding to different image heights Distort sizes values.Figure 18 D shows the ratio chromatism, curve of the pick-up 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 pick-up lens given by embodiment 9 can be real Existing good image quality.

Embodiment 10

The pick-up lens according to the embodiment of the present application 10 is described referring to Figure 19 to Figure 20 D.Figure 19 shows basis The structural schematic diagram of the pick-up lens of the embodiment of the present application 10.

As shown in figure 19, it is sequentially wrapped along optical axis by object side to image side according to the pick-up lens of the application illustrative embodiments Include: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, 7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.

First lens E1 has positive light coke, and object side S1 is concave surface, and image side surface S2 is convex surface.Second lens E2 has Positive light coke, 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.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is convex surface, 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.7th lens E7 has positive light coke, and object side S13 is concave surface, as Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged On the S19 of face.

Table 28 shows surface type, radius of curvature, thickness, material and the circle of each lens of the pick-up 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 S1 and image side surface S2 of the first lens E1 is spherical surface, and second thoroughly The object side of any one lens of the mirror E2 into the 8th lens E8 and image side surface are aspherical.Table 29, which is shown, can be used for reality Apply the high-order coefficient of each aspherical mirror in example 10, wherein each aspherical face type can be by the formula that provides in above-described embodiment 1 (1) it limits.

Table 29

Table 30 provides the half of effective pixel area diagonal line length on the imaging surface S19 of pick-up 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 f8.

ImgH(mm)	2.75	f3(mm)	-7.91
				TTL(mm)	5.90	f4(mm)	14.69
HFOV(°)	34.2	f5(mm)	56.04
				Fno	1.49	f6(mm)	-35.88
f(mm)	4.27	f7(mm)	3.90
				f1(mm)	584.74	f8(mm)	-2.63
f2(mm)	4.06

Table 30

Figure 20 A shows chromatic curve on the axis of the pick-up lens of embodiment 10, indicate the light of different wave length via Converging focal point after camera lens deviates.Figure 20 B shows the astigmatism curve of the pick-up lens of embodiment 10, indicates that meridianal image surface is curved The bending of bent and sagittal image surface.Figure 20 C shows the distortion curve of the pick-up lens of embodiment 10, indicates corresponding to different image heights Distortion sizes values.Figure 20 D shows the ratio chromatism, curve of the pick-up 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 pick-up 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, be also possible to The image-forming module being integrated on the mobile electronic devices such as mobile phone.The imaging device is equipped with pick-up lens described above.

Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art Member is it 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 Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein Can technical characteristic replaced mutually and the technical solution that is formed.

Claims (26)

1. pick-up lens, along optical axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th thoroughly Mirror, the 5th lens, the 6th lens, the 7th lens and the 8th lens, which is characterized in that

First lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the described 7th Lens and the 8th lens all have positive light coke or negative power；

Second lens have positive light coke；

The object side of first lens is concave surface, and image side surface is convex surface；

First lens all have airspace between two lens of arbitrary neighborhood into the 8th lens；And

Total effective focal length f of the pick-up lens and the Entry pupil diameters EPD of the pick-up lens meet f/EPD≤1.9.

2. pick-up lens according to claim 1, which is characterized in that second lens have positive light coke, described to take the photograph As total effective focal length f of camera lens and the effective focal length f2 of second lens meet 0 < f2/f < 2.

3. pick-up lens according to claim 1, which is characterized in that total effective focal length f of the pick-up lens with it is described The effective focal length f3 of the third lens meets 1 < | f3/f | < 3.

4. pick-up lens according to claim 1, which is characterized in that the radius of curvature R 1 of the object side of first lens Meet 0 < R2/R1 < 2 with the radius of curvature R 2 of the image side surface of first lens.

5. pick-up lens according to claim 3, which is characterized in that the radius of curvature R 5 of the object side of the third lens Meet 1 < with the radius of curvature R 6 of the image side surface of the third lens | R5/R6 | < 3.

6. pick-up lens according to claim 1, which is characterized in that the maximum of the object side of second lens effectively half The maximum effective radius DT41 of the object side of diameter DT21 and the 4th lens meets 1 < DT21/DT41 < 1.5.

7. pick-up lens according to claim 1, which is characterized in that the 4th lens have positive light coke, described to take the photograph As total effective focal length f of camera lens and the effective focal length f4 of the 4th lens meet 0 < f/f4 < 0.5.

8. pick-up lens according to any one of claim 1 to 7, which is characterized in that the 7th lens have positive light Focal power, image side surface are convex surface.

9. pick-up lens according to claim 8, which is characterized in that the 8th lens have negative power, image side Face is concave surface.

10. pick-up lens according to any one of claim 1 to 7, which is characterized in that first lens to described The summation ∑ AT of airspace of two lens of arbitrary neighborhood on the optical axis and the 7th lens and described the in eight lens Airspace T78 of eight lens on the optical axis meets 3.5 < ∑ AT/T78 < 5.5.

11. pick-up lens according to claim 10, which is characterized in that first lens are in the center on the optical axis Thickness CT1, second lens are in the center thickness CT2 on the optical axis with the third lens in the center on the optical axis Thickness CT3 meets 0 < (CT1+CT3)/CT2 < 1.5.

12. pick-up lens according to claim 10, which is characterized in that the 4th lens and the 5th lens are in institute The airspace T45 and the airspace T56 of the 5th lens and the 6th lens on the optical axis stated on optical axis expires 1 < T45/T56 < 3 of foot.

13. pick-up lens according to any one of claim 1 to 7, which is characterized in that the pick-up lens it is total effectively The object side of focal length f, the maximum angle of half field-of view HFOV of the pick-up lens and first lens to the pick-up lens at Distance TTL of the image planes on the optical axis meets 0 < f × TAN (HFOV)/TTL < 1.

It by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th along optical axis 14. pick-up lens Lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens, which is characterized in that

First lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the described 7th Lens and the 8th lens all have positive light coke or negative power；

Second lens have positive light coke；

The object side of first lens is concave surface, and image side surface is convex surface；

First lens all have airspace between two lens of arbitrary neighborhood into the 8th lens；And

First lens on the optical axis center thickness CT1, second lens are in the center thickness on the optical axis CT2 and the third lens are in center thickness CT3 satisfaction 0 < (CT1+CT3)/CT2 < 1.5 on the optical axis.

15. pick-up lens according to claim 14, which is characterized in that second lens have positive light coke, described Total effective focal length f of pick-up lens and the effective focal length f2 of second lens meet 0 < f2/f < 2.

16. pick-up lens according to claim 14, which is characterized in that total effective focal length f of the pick-up lens and institute The effective focal length f3 for stating the third lens meets 1 < | f3/f | < 3.

17. pick-up lens according to claim 14, which is characterized in that the radius of curvature of the object side of first lens The radius of curvature R 2 of the image side surface of R1 and first lens meets 0 < R2/R1 < 2.

18. pick-up lens according to claim 14, which is characterized in that the radius of curvature of the object side of the third lens The radius of curvature R 6 of R5 and the image side surface of the third lens meets 1 < | R5/R6 | < 3.

19. pick-up lens according to claim 14, which is characterized in that the maximum of the object side of second lens is effectively The maximum effective radius DT41 of the object side of radius DT21 and the 4th lens meets 1 < DT21/DT41 < 1.5.

20. pick-up lens according to claim 14, which is characterized in that the 4th lens have positive light coke, described Total effective focal length f of pick-up lens and the effective focal length f4 of the 4th lens meet 0 < f/f4 < 0.5.

21. pick-up lens according to claim 14, which is characterized in that the 7th lens have positive light coke, picture Side is convex surface.

22. pick-up lens according to claim 21, which is characterized in that the 8th lens have negative power, picture Side is concave surface.

23. pick-up lens described in any one of 4 to 22 according to claim 1, which is characterized in that the pick-up lens always has The object side of focal length f, the maximum angle of half field-of view HFOV of the pick-up lens and first lens are imitated to the pick-up lens Distance TTL of the imaging surface on the optical axis meets 0 < f × TAN (HFOV)/TTL < 1.

24. pick-up lens according to claim 23, which is characterized in that first lens are appointed into the 8th lens Anticipate airspace of adjacent two lens on the optical axis summation ∑ AT and the 7th lens and the 8th lens in institute The airspace T78 stated on optical axis meets 3.5 < ∑ AT/T78 < 5.5.

25. pick-up lens according to claim 23, which is characterized in that the 4th lens and the 5th lens are in institute The airspace T45 and the airspace T56 of the 5th lens and the 6th lens on the optical axis stated on optical axis expires 1 < T45/T56 < 3 of foot.

26. pick-up lens described in any one of 4 to 22 according to claim 1, which is characterized in that the pick-up lens always has The Entry pupil diameters EPD of effect focal length f and the pick-up lens meets f/EPD≤1.9.