CN207164346U

CN207164346U - Optical imaging lens

Info

Publication number: CN207164346U
Application number: CN201721142627.6U
Authority: CN
Inventors: 张凯元
Original assignee: Zhejiang Sunny Optics Co Ltd
Current assignee: Zhejiang Sunny Optics Co Ltd
Priority date: 2017-09-07
Filing date: 2017-09-07
Publication date: 2018-03-30
Anticipated expiration: 2027-09-07
Also published as: CN207164346U9

Abstract

This application discloses a kind of optical imaging lens, the optical imaging lens are sequentially included along optical axis by thing side to image side：First lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens.First lens have positive light coke, and its thing side is convex surface；Second lens have focal power, and its thing side is convex surface, and image side surface is concave surface；3rd lens and the 4th lens are respectively provided with focal power；5th lens have positive light coke, and its image side surface is convex surface；6th lens have negative power, and its thing side and image side surface are concave surface；And total the effective focal length f and optical imaging lens of optical imaging lens Entry pupil diameters EPD meet f/EPD≤1.6.

Description

Optical imaging lens

Technical field

The application is related to a kind of optical imaging lens, more specifically, the application is related to a kind of optics including six-element lens Imaging lens.

Background technology

With the popularization of the electronic products such as mobile phone, tablet personal computer, while meet people's daily life to electronic product just Take formula requirement, the lightening trend demand more and more higher of electronic product.Because portable type electronic product tends to minimize, phase is limited The overall length of supporting camera lens, so as to add the design difficulty of camera lens.

Meanwhile commonly used with such as photosensitive coupling element (CCD) or Complimentary Metal-Oxide semiconductor element (CMOS) The raising of photo-sensitive cell performance and the reduction of size so that the pixel number increase of photo-sensitive cell and pixel dimension reduce, so as to right Higher requirement is proposed in the high image quality of the optical imaging lens to match.

The reduction of pixel dimension means that within the identical time for exposure thang-kng amount of camera lens will diminish.But in environment Under conditions of dim (such as rainy days, dusk), camera lens needs that there is larger thang-kng amount just can ensure that image quality.

Utility model content

This application provides be applicable to portable type electronic product, can at least solve or part solve it is of the prior art The high-aperture optical imaging lens of above-mentioned at least one shortcoming.

On the one hand, this application provides such a optical imaging lens, the optical imaging lens along optical axis by thing side extremely Image side sequentially includes：First lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens.Wherein, first Lens can have positive light coke, and its thing side can be convex surface；Second lens have focal power, and its thing side can be convex surface, image side Face can be concave surface；3rd lens and the 4th lens are respectively provided with focal power；5th lens can have positive light coke, and its image side surface can be Convex surface；6th lens can have negative power, and its thing side and image side surface can be concave surface；And optical imaging lens always has The Entry pupil diameters EPD of effect focal length f and optical imaging lens can meet f/EPD≤1.6.

In one embodiment, on the thing side of the first lens to the axle of optical imaging lens imaging surface distance TTL with The half ImgH of effective pixel area diagonal line length can meet TTL/ImgH≤1.5 on optical imaging lens imaging surface.

In one embodiment, the effective focal length f1 of the first lens and the first lens are in the center thickness CT1 on optical axis 3 ＜ f1/CT1 ＜ 4 can be met.

In one embodiment, the second lens exist in the center thickness CT2 on optical axis with the first lens and the second lens Spacing distance T12 on optical axis can meet 4 ＜ CT2/T12 ＜ 6.

In one embodiment, the radius of curvature of the lens image side surface of radius of curvature R 3 and second of the second lens thing side R4 can meet 1.5 ＜ R3/R4 ＜ 2.5.

In one embodiment, the second lens can have a negative power, its effective focal length f2 and optical imaging lens Total effective focal length f can meet -2 ＜ f2/f ＜ -1.

In one embodiment, the radius of curvature of the lens image side surface of radius of curvature R 7 and the 4th of the 4th lens thing side R8 can meet -1 ＜ (R7-R8)/(R7+R8) ＜ 2.

In one embodiment, total the effective focal length f and the 5th lens image side surface of optical imaging lens radius of curvature R10 can meet -3 ＜ f/R10 ＜ -2.5.

In one embodiment, total effective focal length f of the effective focal length f5 of the 5th lens and optical imaging lens can expire 0.5 ＜ f5/f ＜ 1 of foot.

In one embodiment, the curvature of the lens image side surface of radius of curvature R 11 and the 6th of the 6th lens thing side half Footpath R12 can meet -2 ＜ R11/R12 ＜ -1.5.

In one embodiment, the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th are saturating Axle of the mirror respectively at the summation ∑ CT of the center thickness on optical axis and the thing side of the first lens to optical imaging lens imaging surface On distance TTL can meet 0.5 ＜ ∑ CT/TTL ＜ 0.7.

On the other hand, this application provides such a optical imaging lens, the optical imaging lens are along optical axis by thing side Sequentially include to image side：First lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens.First is saturating Mirror and the 5th lens can have positive light coke；Second lens and the 6th lens can have negative power；3rd lens and At least one in four lens has positive light coke；It is at least one to be convex in the thing side of first lens and image side surface Face；The thing side of 6th lens and image side surface can be concave surface；The image side surface of 5th lens can be convex surface, the curvature of its image side surface Total effective focal length f of radius R10 and optical imaging lens can meet -3 ＜ f/R10 ＜ -2.5.

In one embodiment, the thing side of the first lens can be convex surface.

In one embodiment, the thing side of the second lens can be convex surface, and image side surface can be concave surface.

The application employs multi-disc (for example, six) lens, by each power of lens of reasonable distribution, face type, each Spacing etc. on axle between the center thickness of mirror and each lens, there is provided one kind have high pixel, large aperture, it is ultra-thin, miniaturization, The optical imaging lens of at least one beneficial effect such as it is easily worked.

Brief description of the drawings

With reference to accompanying 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 representation of the optical imaging lens according to the embodiment of the present application 1；

Fig. 2A to Fig. 2 D respectively illustrates chromatic curve on the axle of the optical imaging lens of embodiment 1, astigmatism curve, distortion Curve and ratio chromatism, curve；

Fig. 3 shows the structural representation of the optical imaging lens according to the embodiment of the present application 2；

Fig. 4 A to Fig. 4 D respectively illustrate chromatic curve on the axle of the optical imaging lens of embodiment 2, astigmatism curve, distortion Curve and ratio chromatism, curve；

Fig. 5 shows the structural representation of the optical imaging lens according to the embodiment of the present application 3；

Fig. 6 A to Fig. 6 D respectively illustrate chromatic curve on the axle of the optical imaging lens of embodiment 3, astigmatism curve, distortion Curve and ratio chromatism, curve；

Fig. 7 shows the structural representation of the optical imaging lens according to the embodiment of the present application 4；

Fig. 8 A to Fig. 8 D respectively illustrate chromatic curve on the axle of the optical imaging lens of embodiment 4, astigmatism curve, distortion Curve and ratio chromatism, curve；

Fig. 9 shows the structural representation of the optical imaging lens according to the embodiment of the present application 5；

Figure 10 A to Figure 10 D respectively illustrate chromatic curve on the axle of the optical imaging lens of embodiment 5, astigmatism curve, abnormal Varied curve and ratio chromatism, curve；

Figure 11 shows the structural representation of the optical imaging lens according to the embodiment of the present application 6；

Figure 12 A to Figure 12 D respectively illustrate chromatic curve on the axle of the optical imaging lens of embodiment 6, astigmatism curve, abnormal Varied curve and ratio chromatism, curve；

Figure 13 shows the structural representation of the optical imaging lens according to the embodiment of the present application 7；

Figure 14 A to Figure 14 D respectively illustrate chromatic curve on the axle of the optical imaging lens of embodiment 7, astigmatism curve, abnormal Varied curve and ratio chromatism, curve.

Embodiment

In order to more fully understand the application, refer to the attached drawing is made into more detailed description to the various aspects of the application.Should Understand, these describe the description of the simply illustrative embodiments to the application in detail, rather than limit the application in any way Scope.In the specification, identical reference numbers identical element.Stating "and/or" includes associated institute Any and all combinations of one or more of list of items.

It should be noted that in this manual, the statement of first, second, third, etc. is only used for a feature and another spy Sign makes a distinction, and does not indicate that any restrictions to feature.Therefore, in the case of without departing substantially from teachings of the present application, hereinafter The first lens discussed are also known as the second lens or the 3rd lens.

In the accompanying drawings, for convenience of description, thickness, the size and dimension of lens are somewhat exaggerated.Specifically, accompanying drawing Shown in sphere or aspherical shape be illustrated by way of example.That is, sphere or aspherical shape is not limited to accompanying drawing In the sphere that shows or aspherical shape.Accompanying 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 the convex surface position When putting, then it represents that the lens surface is extremely convex surface less than near axis area；If lens surface is concave surface and does not define the concave surface position When, then it represents that the lens surface is extremely concave surface less than near axis area.It is referred to as thing side near the surface of object in each lens, It is referred to as image side surface near the surface of imaging surface in each lens.

It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory Represent stated feature, element and/or part be present when being used in bright book, but do not preclude the presence or addition of one or more Further feature, element, part and/or combinations thereof.In addition, ought the statement of such as " ... at least one " appear in institute When after the list of row feature, whole listed feature, rather than the individual component in modification list are modified.In addition, work as description originally During the embodiment of application, represented " one or more embodiments of the application " using "available".Also, term " exemplary " It is intended to refer to example or illustration.

Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein be respectively provided with The application one skilled in the art's is generally understood that identical implication.It will also be appreciated that term (such as in everyday words Term defined in allusion quotation) implication consistent with their implications in the context of correlation technique should be interpreted as having, and It will not explained with idealization or excessively formal sense, unless clearly so limiting herein.

It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Describe the application 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.

Include such as six lens with focal power according to the optical imaging lens of the application illustrative embodiments, That is, the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens.This six-element lens is along optical axis From thing side to image side sequential.Optical imaging lens may also include the photo-sensitive cell for being arranged at imaging surface.

First lens can have a positive light coke, and at least one in its thing side and image side surface is convex surface.First lens Effective focal length f1 and the first lens can meet 3 ＜ f1/CT1 ＜ 4 between the center thickness CT1 on optical axis, more specifically, f1 and CT1 can further meet 3.65≤f1/CT1≤3.90.By by the effective focal length of the first lens and the first lens on optical axis Center thickness Ratio control in the reasonable scope, the machinability of the first lens can be ensured；Simultaneously, additionally it is possible to effectively By the control of the spherical aberration contribution rates of the first lens in the reasonable scope, so that system visual field and environs on axle have compared with Excellent image quality.

Alternatively, the thing side of the first lens can be convex surface, and image side surface can be convex surface or concave surface.

Second lens can have positive light coke or negative power.Alternatively, the second lens have negative power, and it is effectively burnt Away from -2 ＜ f2/f ＜ -1 can be met between f2 and total effective focal length f of optical imaging lens, more specifically, f2 and f further may be used Meet -1.69≤f2/f≤- 1.44.By the size and Orientation for rationally controlling the second lens strength so that the second lens ball The contribution of difference and the direction of spherical aberration can balance most of three rank spherical aberrations caused by the first lens to offset, so as to Effectively lift the image quality of camera lens.

The thing side of second lens can be convex surface, and image side surface can be concave surface.The radius of curvature R 3 of second lens thing side with 1.5 ＜ R3/R4 ＜ 2.5 can be met between the radius of curvature R 4 of second lens image side surface, more specifically, R3 and R4 can further expire Foot 1.91≤R3/R4≤2.15.By controlling the radius of curvature of the second lens thing side and image side surface, peripheral field can be existed Total deflection angle on the two surfaces is controlled in rational scope, so as to be effectively reduced the susceptibility of system.

Center thickness CT2 and first lens and second lens spacing distance on optical axis of second lens on optical axis 4 ＜ CT2/T12 ＜ 6 can be met between T12, more specifically, CT2 and T12 can further meet 4.30≤CT2/T12≤5.69. By constraining spacing distance T12 of second lens on the center thickness CT2 and the first lens and the second lens axis on optical axis Ratio range, the distortion contribution amounts of the first lens is controlled, to be compensated to amount of distortion caused by follow-up each lens.

3rd lens have positive light coke or negative power.Alternatively, the 3rd lens can have positive light coke.

4th lens have positive light coke or negative power.The lens of radius of curvature R 7 and the 4th of the thing side of 4th lens Image side surface radius of curvature R 8 between can meet -1 ＜ (R7-R8)/(R7+R8) ＜ 2, more specifically, R7 and R8 further may be used Meet -0.55≤(R7-R8)/(R7+R8)≤1.81.By the ratio for controlling the 4th lens thing side and image side curvature radius Value, the contribution amount of the 4th lens thing side and image side surface astigmatism amount can be efficiently controlled, and then to middle visual field and aperture band Picture matter carry out rationally effective control.

5th lens can have positive light coke, can between its effective focal length f5 and total effective focal length f of optical imaging lens Meet 0.5 ＜ f5/f ＜ 1, more specifically, f5 and f can further meet 0.64≤f5/f≤0.66.By controlling the 5th lens The scope of effective focal length, the contribution amount of the 5th lens strength can be reasonably controlled, while can reasonably controlled the 5th saturating The contribution amount of mirror negative spherical aberration so that negative spherical aberration caused by the 5th lens can be balanced effectively by each negative group member (that is, in camera lens Each lens with negative power) caused by positive spherical aberration.

The image side surface of 5th lens can be convex surface.The total effective focal length f and the 5th lens image side surface S10 of optical imaging lens Radius of curvature R 10 between can meet -3 ＜ f/R10 ＜ -2.5, more specifically, f and R10 can further meet -2.81≤f/ R10≤-2.67.By the radius of curvature for the image side surface for controlling the 5th lens, it can be good at controlling the contribution of its five ranks spherical aberration Amount, so three rank spherical aberrations caused by above lens group member (that is, each lens between thing side and the 5th lens) are compensated and Balance so that field of view has good image quality on the axle of camera lens.

6th lens can have negative power, and its thing side can be concave surface, and image side surface can be concave surface.The thing side of 6th lens - 2 ＜ R11/R12 ＜ -1.5 can be met between the radius of curvature R 12 of the image side surface of the lens of radius of curvature R 11 and the 6th in face, more Specifically, R11 and R12 can further meet -1.85≤R11/R12≤- 1.73.By controlling the 6th lens thing side and image side The ratio range of curvature radius, can the thickness aspherical to the 6th lens rationally controlled than tendency so that it falls In the interval range being easily worked, and then improve the machinability of camera lens.

Each lens with focal power are respectively at the summation Σ CT of the center thickness on optical axis and the light of optical imaging lens 0.5 ＜ Σ can be met between total length TTL (that is, the distance from the center of the first lens thing side to the axle in lens imaging face) CT/TTL ＜ 0.7, more specifically, Σ 0.57≤CT/TTL≤0.58.By control each lens with focal power it is total in The scope of heart thickness, can be by the residual distortion control after each lens balance in zone of reasonableness, so that optical imagery system System is with the good distortion performance that disappears.

The optics total length TTL of optical imaging lens and effective pixel area diagonal line length on optical imaging lens imaging surface Half ImgH between can meet TTL/ImgH≤1.5, more specifically, TTL and ImgH can further meet 1.46≤TTL/ ImgH≤1.49.By the optics total length to camera lens and as a high proportion of control, total chi of imaging lens can be effectively compressed It is very little, to realize the ultra-slim features of optical imaging lens and miniaturization, so that the optical imaging lens can be preferably applicable In the system that such as portable type electronic product equidimension is limited.

Can meet between total the effective focal length f and optical imaging lens of optical imaging lens Entry pupil diameters EPD f/EPD≤ 1.6, more specifically, f and EPD can further meet 1.57≤f/EPD≤1.59.The F-number Fno of optical imaging lens is (i.e., The Entry pupil diameters EPD of total effective focal length f/ camera lenses of camera lens) it is smaller, the clear aperature of camera lens is bigger, within the same unit interval Light-inletting quantity it is just more.F-number Fno diminution, it can effectively lift image planes brightness so that camera lens can preferably meet light Shooting demand during line deficiency.Camera lens is configured to meet conditional f/EPD≤1.6, can make mirror during thang-kng amount is increased Head has large aperture advantage, so as to strengthen the imaging effect under camera lens dark situation.

In the exemplary embodiment, optical imaging lens are also provided with the diaphragm for confine optical beam, with further Lift the image quality of camera lens.Alternatively, diaphragm may be provided between the first lens and the second lens.However, art technology Personnel are it should be appreciated that diaphragm can be arranged as required to any position between thing side and image side, i.e. the setting of diaphragm It should not be limited between the first lens and the second lens.

Alternatively, above-mentioned optical imaging lens may also include optical filter for correcting color error ratio and/or for protecting The protective glass of photo-sensitive cell on imaging surface.

Multi-disc eyeglass, such as described above six can be used according to the optical imaging lens of the above-mentioned embodiment of the application Piece.By each lens strength of reasonable distribution, face type, spacing etc. on the axle between the center thickness of each lens and each lens, It is proposed it is a kind of being applicable to Portable belt electronic product, F-number Fno be 1.5 or so ultra-thin large aperture imaging lens.This into As system not only have the characteristics that high pixel, it is ultra-thin, be easily worked, also with large aperture advantage, can strengthen under dark situation Imaging effect.In addition, the optical imaging lens also ensure the preferable matching with big image planes CCD chip.

In presently filed embodiment, at least one in the 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 scheme situation Under, the lens numbers for forming imaging lens system group can be changed, to obtain each result and advantage described in this specification.For example, Although being described in embodiments by taking six lens as an example, the optical imaging lens are not limited to include six thoroughly Mirror.If desired, the optical imaging lens may also include the lens of other quantity.

The specific embodiment for the optical imaging lens for being applicable to above-mentioned embodiment is further described with reference to the accompanying drawings.

Embodiment 1

Optical imaging lens referring to Fig. 1 to Fig. 2 D descriptions according to the embodiment of the present application 1.Fig. 1 is shown according to this Apply for the structural representation of the optical imaging lens of embodiment 1.

As shown in figure 1, optical imaging lens along optical axis from thing side to sequentially including the first lens E1, second saturating into image side Mirror E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6 and imaging surface S15.

First lens E1 has positive light coke, and its thing side S1 is convex surface, and image side surface S2 is convex surface, and the first lens E1 Thing side S1 and image side surface S2 is aspherical.

Second lens E2 has negative power, and its thing side S3 is convex surface, and image side surface S4 is concave surface, and the second lens E2 Thing side S3 and image side surface S4 is aspherical.

3rd lens E3 has positive light coke, and its thing side S5 is convex surface, and image side surface S6 is concave surface, and the 3rd lens E3 Thing side S5 and image side surface S6 is aspherical.

4th lens E4 has negative power, and its thing side S7 is convex surface, and image side surface S8 is concave surface, and the 4th lens E4 Thing side S7 and image side surface S8 is aspherical.

5th lens E5 has positive light coke, and its thing side S9 is convex surface, and image side surface S10 is convex surface, and the 5th lens E5 Thing side S9 and image side surface S10 be aspherical.

6th lens E6 has negative power, and its thing side S11 is concave surface, and image side surface S12 is concave surface, and the 6th lens E6 Thing side S11 and image side surface S12 be aspherical.

Alternatively, optical imaging lens may also include the optical filter E7 with thing side S13 and image side surface S14.From thing The light of body sequentially through each surface S1 to S14 and is ultimately imaged on imaging surface S15.

Alternatively, diaphragm STO can be set between the first lens E1 and the second lens E2, with further lifted camera lens into As quality.

Table 1 show the surface types of each lens of the optical imaging lens of embodiment 1, radius of curvature, thickness, material and Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).

Table 1

It can be obtained by table 1, the second lens E2 thing side S3 lens E2 of radius of curvature R 3 and second image side surface S4 song Meet R3/R4=2.15 between rate radius R4；The 4th lens E4 thing side S7 lens E4 of radius of curvature R 7 and the 4th picture Meet (R7-R8)/(R7+R8)=0.02 between side S8 radius of curvature R 8；6th lens E6 thing side S11 curvature half Meet R11/R12=-1.73 between footpath R11 and the 6th lens E6 image side surface S12 radius of curvature R 12；Second lens E2 exists Meet CT2/ between the spacing distance T12 of center thickness CT2 and the first lens E1 and the second lens E2 on optical axis on optical axis T12=5.02.

In the present embodiment, each lens can use non-spherical lens, and each aspherical face type x is limited by below equation：

Wherein, x be it is aspherical along optical axis direction when being highly h position, away from aspheric vertex of surface apart from rise；C is Aspherical paraxial curvature, c=1/R (that is, paraxial curvature c is the mean curvature radius R of upper table 1 inverse)；K be circular cone coefficient ( Provided in table 1)；Ai is the correction factor of aspherical i-th-th ranks.Table 2 below is given available for each aspherical in embodiment 1 Minute surface S1-S12 high order term coefficient A₄、A₆、A₈、A₁₀、A₁₂、A₁₄、A₁₆、A₁₈And A₂₀。

Table 2

Table 3 provides total effective focal length f, the optics of the effective focal length f1 to f6 of each lens in embodiment 1, optical imaging lens The optics total length TTL of imaging lens is (that is, from the first lens E1 thing side S1 center to imaging surface S15 on optical axis Distance) and optical imaging lens imaging surface S15 on effective pixel area diagonal line length half ImgH.

Table 3

It can be obtained by table 3, met between the second lens E2 effective focal length f2 and total effective focal length f of optical imaging lens F2/f=-1.44；Meet f5/f=between 5th lens E5 effective focal length f5 and total effective focal length f of optical imaging lens 0.64；Effective pixel area diagonal line length on the optics total length TTL and optical imaging lens imaging surface S15 of optical imaging lens Half ImgH between meet TTL/ImgH=1.49.

Understood with reference to table 1 and table 3, total the effective focal length f and the 5th lens E5 of optical imaging lens image side surface S10 song Meet f/R10=-2.78 between rate radius R10；During first lens E1 effective focal length f1 and the first lens E1 is on optical axis Meet f1/CT1=3.65 between heart thickness CT1；First lens E1 to the 6th lens E6 is respectively at the center thickness on optical axis Meet Σ CT/TTL=0.57 between summation Σ CT and the optics total length TTL of optical imaging lens.

In embodiment 1, between total the effective focal length f and optical imaging lens of optical imaging lens Entry pupil diameters EPD Meet f/EPD=1.58.

Fig. 2A shows chromatic curve on the axle of the optical imaging lens of embodiment 1, and it represents the light warp of different wave length Deviateed by the converging focal point after camera lens.Fig. 2 B show the astigmatism curve of the optical imaging lens of embodiment 1, and it represents meridian picture Face is bent and sagittal image surface bending.Fig. 2 C show the distortion curve of the optical imaging lens of embodiment 1, and it represents different visual angles In the case of distortion sizes values.Fig. 2 D show the ratio chromatism, curve of the optical imaging lens of embodiment 1, and it represents light warp By the deviation of the different image heights after camera lens on imaging surface.Understood according to Fig. 2A to Fig. 2 D, optics given by embodiment 1 into As camera lens can realize good image quality.

Embodiment 2

Optical imaging lens referring to Fig. 3 to Fig. 4 D descriptions according to 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 lens structural representation.

As shown in figure 3, optical imaging lens along optical axis from thing side to sequentially including the first lens E1, second saturating into image side Mirror E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6 and imaging surface S15.

Table 4 show the surface types of each lens of the optical imaging lens of embodiment 2, radius of curvature, thickness, material and Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 5 is shown available for each aspheric in embodiment 2 The high order term coefficient of face minute surface, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 6 shows The effective focal length f1 to f6 of each lens in embodiment 2, total effective focal length f of optical imaging lens, optical imaging lens are gone out The half ImgH of effective pixel area diagonal line length on optics total length TTL and optical imaging lens imaging surface S15.

Table 4

Table 5

Table 6

Fig. 4 A show chromatic curve on the axle of the optical imaging lens of embodiment 2, and it represents the light warp of different wave length Deviateed by the converging focal point after camera lens.Fig. 4 B show the astigmatism curve of the optical imaging lens of embodiment 2, and it represents meridian picture Face is bent and sagittal image surface bending.Fig. 4 C show the distortion curve of the optical imaging lens of embodiment 2, and it represents different visual angles In the case of distortion sizes values.Fig. 4 D show the ratio chromatism, curve of the optical imaging lens of embodiment 2, and it represents light warp By the deviation of the different image heights after camera lens on imaging surface.Understood according to Fig. 4 A to Fig. 4 D, optics given by embodiment 2 into As camera lens can realize good image quality.

Embodiment 3

The optical imaging lens according to the embodiment of the present application 3 are described referring to Fig. 5 to Fig. 6 D.Fig. 5 shows basis The structural representation of the optical imaging lens of the embodiment of the present application 3.

As shown in figure 5, optical imaging lens along optical axis from thing side to sequentially including the first lens E1, second saturating into image side Mirror E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6 and imaging surface S15.

First lens E1 has positive light coke, and its thing side S1 is convex surface, and image side surface S2 is concave surface, and the first lens E1 Thing side S1 and image side surface S2 is aspherical.

3rd lens E3 has positive light coke, and its thing side S5 is concave surface, and image side surface S6 is convex surface, and the 3rd lens E3 Thing side S5 and image side surface S6 is aspherical.

Table 7 show the surface types of each lens of the optical imaging lens of embodiment 3, radius of curvature, thickness, material and Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 8 is shown available for each aspheric in embodiment 3 The high order term coefficient of face minute surface, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 9 shows The effective focal length f1 to f6 of each lens in embodiment 3, total effective focal length f of optical imaging lens, optical imaging lens are gone out The half ImgH of effective pixel area diagonal line length on optics total length TTL and optical imaging lens imaging surface S15.

Table 7

Table 8

Table 9

Fig. 6 A show chromatic curve on the axle of the optical imaging lens of embodiment 3, and it represents the light warp of different wave length Deviateed by the converging focal point after camera lens.Fig. 6 B show the astigmatism curve of the optical imaging lens of embodiment 3, and it represents meridian picture Face is bent and sagittal image surface bending.Fig. 6 C show the distortion curve of the optical imaging lens of embodiment 3, and it represents different visual angles In the case of distortion sizes values.Fig. 6 D show the ratio chromatism, curve of the optical imaging lens of embodiment 3, and it represents light warp By the deviation of the different image heights after camera lens on imaging surface.Understood according to Fig. 6 A to Fig. 6 D, optics given by embodiment 3 into As camera lens can realize good image quality.

Embodiment 4

The optical imaging lens according to the embodiment of the present application 4 are described referring to Fig. 7 to Fig. 8 D.Fig. 7 shows basis The structural representation of the optical imaging lens of the embodiment of the present application 4.

As shown in fig. 7, optical imaging lens along optical axis from thing side to sequentially including the first lens E1, second saturating into image side Mirror E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6 and imaging surface S15.

Table 10 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens of embodiment 4 And circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 11 is shown available for each in embodiment 4 The high order term coefficient of aspherical mirror, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 12 show total effective focal length f, the optical imaging lens of the effective focal length f1 to f6 of each lens in embodiment 4, optical imaging lens The half ImgH of effective pixel area diagonal line length on the optics total length TTL and optical imaging lens imaging surface S15 of head.

Table 10

Face number

A

6

A8

10

A12

A14

A16

A18

A20

S1

-6.7477E-03

3.7494E-02

-1.1806E-01

2.3699E-01

-3.1728E-01

2.7739E-01

-1.5228E-01

4.7390E-02

-6.4045E-03

S2

-7.3915E-02

3.7606E-01

-1.0274E+00

1.9235E+00

-2.5140E+00

2.2296E+00

-1.2722E+00

4.1963E-01

-6.0698E-02

S3

-1.7138E-01

5.7533E-01

-1.4219E+00

2.6899E+00

-3.6466E+00

3.4130E+00

-2.0776E+00

7.3885E-01

-1.1643E-01

S4

-1.0802E-01

1.8623E-01

1.8514E-01

-2.0921E+00

6.3942E+00

-1.0617E+01

1.0253E+01

-5.4034E+00

1.2074E+00

S5

-7.3524E-02

8.4458E-02

-4.4967E-01

1.1804E+00

-1.9425E+00

1.7697E+00

-6.8553E-01

-8.7327E-02

1.0779E-01

S6

-1.5869E-01

4.2668E-02

1.3659E-01

-5.1225E-01

6.8022E-01

-5.3751E-01

2.7964E-01

-8.5310E-02

1.0240E-02

S7

-2.3669E-01

1.1880E-01

-7.2324E-02

2.2107E-01

-5.6943E-01

5.8364E-01

-2.5181E-01

3.5433E-02

1.3755E-03

S8

-1.6945E-01

2.9734E-02

5.9894E-02

-2.7645E-02

-8.6924E-02

1.1376E-01

-5.6398E-02

1.3109E-02

-1.2224E-03

S9

-2.4034E-02

-4.8191E-02

-6.7236E-03

8.6577E-02

-9.9652E-02

5.4117E-02

-1.5789E-02

2.4389E-03

-1.6141E-04

S10

-1.0394E-01

1.3592E-01

-1.9129E-01

1.7041E-01

-8.5530E-02

2.5369E-02

-4.4856E-03

4.4153E-04

-1.8781E-05

S11

-1.3271E-01

3.9358E-02

-9.3007E-03

1.5104E-02

-9.0156E-03

2.5279E-03

-3.8065E-04

3.0046E-05

-9.8253E-07

S12

-1.0663E-01

6.3151E-02

-3.1647E-02

1.2025E-02

-3.3170E-03

6.2901E-04

-7.7517E-05

5.5859E-06

-1.7714E-07

Table 11

Table 12

Fig. 8 A show chromatic curve on the axle of the optical imaging lens of embodiment 4, and it represents the light warp of different wave length Deviateed by the converging focal point after camera lens.Fig. 8 B show the astigmatism curve of the optical imaging lens of embodiment 4, and it represents meridian picture Face is bent and sagittal image surface bending.Fig. 8 C show the distortion curve of the optical imaging lens of embodiment 4, and it represents different visual angles In the case of distortion sizes values.Fig. 8 D show the ratio chromatism, curve of the optical imaging lens of embodiment 4, and it represents light warp By the deviation of the different image heights after camera lens on imaging surface.Understood according to Fig. 8 A to Fig. 8 D, optics given by embodiment 4 into As camera lens can realize good image quality.

Embodiment 5

The optical imaging lens according to the embodiment of the present application 5 are described referring to Fig. 9 to Figure 10 D.Fig. 9 shows basis The structural representation of the optical imaging lens of the embodiment of the present application 5.

As shown in figure 9, optical imaging lens along optical axis from thing side to sequentially including the first lens E1, second saturating into image side Mirror E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6 and imaging surface S15.

3rd lens E3 has positive light coke, and its thing side S5 is convex surface, and image side surface S6 is convex surface, and the 3rd lens E3 Thing side S5 and image side surface S6 is aspherical.

4th lens E4 has negative power, and its thing side S7 is concave surface, and image side surface S8 is concave surface, and the 4th lens E4 Thing side S7 and image side surface S8 is aspherical.

Table 13 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens of embodiment 5 And circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 14 is shown available for each in embodiment 5 The high order term coefficient of aspherical mirror, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 15 show total effective focal length f, the optical imaging lens of the effective focal length f1 to f6 of each lens in embodiment 5, optical imaging lens The half ImgH of effective pixel area diagonal line length on the optics total length TTL and optical imaging lens imaging surface S15 of head.

Table 13

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

-6.8592E-03

3.9455E-02

-1.2493E-01

2.5518E-01

-3.4688E-01

3.0746E-01

-1.7070E-01

5.3604E-02

-7.2944E-03

S2

-9.7394E-02

5.0600E-01

-1.4157E+00

2.6897E+00

-3.5407E+00

3.1505E+00

-1.8000E+00

5.9380E-01

-8.5838E-02

S3

-1.9426E-01

7.1008E-01

-1.8279E+00

3.4927E+00

-4.7357E+00

4.4150E+00

-2.6731E+00

9.4467E-01

-1.4780E-01

S4

-1.1079E-01

1.9965E-01

2.2466E-01

-2.4925E+00

7.6641E+00

-1.2811E+01

1.2454E+01

-6.6082E+00

1.4870E+00

S5

-6.8889E-02

1.0668E-02

-2.0201E-02

-3.9764E-01

1.7836E+00

-3.8487E+00

4.5276E+00

-2.7934E+00

7.0906E-01

S6

-1.4088E-01

-2.0997E-02

3.1098E-01

-9.2031E-01

1.4043E+00

-1.4238E+00

9.5946E-01

-3.7343E-01

6.1222E-02

S7

-2.3060E-01

9.8543E-02

-7.1579E-02

3.3327E-01

-8.2682E-01

8.4259E-01

-3.7416E-01

5.6234E-02

2.0729E-03

S8

-1.7305E-01

4.8929E-02

-1.4729E-02

1.4514E-01

-3.2423E-01

3.1426E-01

-1.5860E-01

4.1767E-02

-4.5935E-03

S9

-1.9063E-02

-6.9338E-02

4.9969E-02

-6.8252E-03

-1.0110E-02

3.0170E-03

1.3110E-03

-6.5156E-04

7.0989E-05

S10

-9.3099E-02

1.1356E-01

-1.5358E-01

1.2798E-01

-5.8007E-02

1.5042E-02

-2.2508E-03

1.8149E-04

-6.1370E-06

S11

-1.2528E-01

3.6091E-02

-1.0099E-02

1.6027E-02

-9.3050E-03

2.5756E-03

-3.8560E-04

3.0398E-05

-9.9627E-07

S12

-9.9583E-02

5.6747E-02

-2.7487E-02

1.0241E-02

-2.8039E-03

5.2968E-04

-6.4879E-05

4.6187E-06

-1.4380E-07

Table 14

Table 15

Figure 10 A show chromatic curve on the axle of the optical imaging lens of embodiment 5, and it represents the light warp of different wave length Deviateed by the converging focal point after camera lens.Figure 10 B show the astigmatism curve of the optical imaging lens of embodiment 5, and it represents meridian Curvature of the image and sagittal image surface bending.Figure 10 C show the distortion curve of the optical imaging lens of embodiment 5, and it represents different Distortion sizes values in the case of visual angle.Figure 10 D show the ratio chromatism, curve of the optical imaging lens of embodiment 5, and it is represented Light via the different image heights after camera lens on imaging surface deviation.Understood according to Figure 10 A to Figure 10 D, given by embodiment 5 Optical imaging lens can realize good image quality.

Embodiment 6

The optical imaging lens according to the embodiment of the present application 6 are described referring to Figure 11 to Figure 12 D.Figure 11 shows root According to the structural representation of the optical imaging lens of the embodiment of the present application 6.

As shown in figure 11, optical imaging lens sequentially include the first lens E1, second along optical axis from thing side into image side Lens E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6 and imaging surface S15.

4th lens E4 has negative power, and its thing side S7 is concave surface, and image side surface S8 is convex surface, and the 4th lens E4 Thing side S7 and image side surface S8 is aspherical.

Table 16 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens of embodiment 6 And circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 17 is shown available for each in embodiment 6 The high order term coefficient of aspherical mirror, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 18 show total effective focal length f, the optical imaging lens of the effective focal length f1 to f6 of each lens in embodiment 6, optical imaging lens The half ImgH of effective pixel area diagonal line length on the optics total length TTL and optical imaging lens imaging surface S15 of head.

Table 16

Table 17

Table 18

Figure 12 A show chromatic curve on the axle of the optical imaging lens of embodiment 6, and it represents the light warp of different wave length Deviateed by the converging focal point after camera lens.Figure 12 B show the astigmatism curve of the optical imaging lens of embodiment 6, and it represents meridian Curvature of the image and sagittal image surface bending.Figure 12 C show the distortion curve of the optical imaging lens of embodiment 6, and it represents different Distortion sizes values in the case of visual angle.Figure 12 D show the ratio chromatism, curve of the optical imaging lens of embodiment 6, and it is represented Light via the different image heights after camera lens on imaging surface deviation.Understood according to Figure 12 A to Figure 12 D, given by embodiment 6 Optical imaging lens can realize good image quality.

Embodiment 7

The optical imaging lens according to the embodiment of the present application 7 are described referring to Figure 13 to Figure 14 D.Figure 13 shows root According to the structural representation of the optical imaging lens of the embodiment of the present application 7.

As shown in figure 13, optical imaging lens sequentially include the first lens E1, second along optical axis from thing side into image side Lens E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6 and imaging surface S15.

4th lens E4 has positive light coke, and its thing side S7 is convex surface, and image side surface S8 is concave surface, and the 4th lens E4 Thing side S7 and image side surface S8 is aspherical.

5th lens E5 has positive light coke, and its thing side S9 is concave surface, and image side surface S10 is convex surface, and the 5th lens E5 Thing side S9 and image side surface S10 be aspherical.

Table 19 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging lens of embodiment 7 And circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 20 is shown available for each in embodiment 7 The high order term coefficient of aspherical mirror, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 21 show total effective focal length f, the optical imaging lens of the effective focal length f1 to f6 of each lens in embodiment 7, optical imaging lens The half ImgH of effective pixel area diagonal line length on the optics total length TTL and optical imaging lens imaging surface S15 of head.

Table 19

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

-8.2163E-03

4.7778E-02

-1.5359E-01

3.1270E-01

-4.1804E-01

3.6276E-01

-1.9706E-01

6.0683E-02

-8.1171E-03

S2

-8.2891E-02

3.8899E-01

-9.8901E-01

1.7470E+00

-2.1956E+00

1.9076E+00

-1.0824E+00

3.5878E-01

-5.2551E-02

S3

-1.7995E-01

5.8990E-01

-1.3580E+00

2.3768E+00

-3.0203E+00

2.7006E+00

-1.6002E+00

5.6347E-01

-8.9270E-02

S4

-1.0856E-01

1.8610E-01

2.2088E-01

-2.1842E+00

6.3788E+00

-1.0219E+01

9.5642E+00

-4.8971E+00

1.0655E+00

S5

-7.8082E-02

7.9847E-02

-4.0847E-01

1.0240E+00

-1.6081E+00

1.3510E+00

-3.9842E-01

-1.7467E-01

1.1195E-01

S6

-1.3982E-01

-3.0139E-02

2.6502E-01

-6.4907E-01

7.3669E-01

-4.9018E-01

2.0741E-01

-5.1297E-02

4.5966E-03

S7

-2.2309E-01

1.1855E-01

-3.2774E-01

1.1586E+00

-2.3043E+00

2.4827E+00

-1.4824E+00

4.6915E-01

-6.2488E-02

S8

-1.5787E-01

2.9574E-02

-4.1876E-02

2.6687E-01

-5.0897E-01

4.7292E-01

-2.3936E-01

6.4224E-02

-7.1981E-03

S9

-1.3250E-02

-6.5640E-02

6.0150E-03

8.1440E-02

-1.0213E-01

6.0359E-02

-2.0214E-02

3.8287E-03

-3.2400E-04

S10

-9.0615E-02

1.0629E-01

-1.5028E-01

1.3025E-01

-6.0855E-02

1.6296E-02

-2.5448E-03

2.1866E-04

-8.1571E-06

S11

-1.1954E-01

1.9865E-02

1.0517E-02

2.2858E-03

-4.0042E-03

1.3397E-03

-2.1288E-04

1.7036E-05

-5.5513E-07

S12

-9.8764E-02

5.3664E-02

-2.4681E-02

8.8794E-03

-2.4112E-03

4.6130E-04

-5.7971E-05

4.2578E-06

-1.3656E-07

Table 20

Table 21

Figure 14 A show chromatic curve on the axle of the optical imaging lens of embodiment 7, and it represents the light warp of different wave length Deviateed by the converging focal point after camera lens.Figure 14 B show the astigmatism curve of the optical imaging lens of embodiment 7, and it represents meridian Curvature of the image and sagittal image surface bending.Figure 14 C show the distortion curve of the optical imaging lens of embodiment 7, and it represents different Distortion sizes values in the case of visual angle.Figure 14 D show the ratio chromatism, curve of the optical imaging lens of embodiment 7, and it is represented Light via the different image heights after camera lens on imaging surface deviation.Understood according to Figure 14 A to Figure 14 D, given by embodiment 7 Optical imaging lens can realize good image quality.

To sum up, embodiment 1 to embodiment 7 meets the relation that table 22 below is shown respectively.

Table 22

The application also provides a kind of imaging device, and its electronics photo-sensitive cell can be photosensitive coupling element (CCD) or complementation Property matal-oxide semiconductor element (CMOS).Imaging device can be such as digital camera independent picture pick-up device or The image-forming module being integrated on the mobile electronic devices such as mobile phone.The imaging device is equipped with optical imaging lens described above Head.

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 the technology that the particular combination of above-mentioned technical characteristic forms Scheme, while should also cover in the case where not departing from the inventive concept, carried out by above-mentioned technical characteristic or its equivalent feature The other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein The technical scheme that the technical characteristic of energy is replaced mutually and formed.

Claims

1. optical imaging lens, sequentially included by thing side to image side along optical axis：First lens, the second lens, the 3rd lens, the 4th Lens, the 5th lens and the 6th lens, it is characterised in that

First lens have positive light coke, and its thing side is convex surface；

Second lens have focal power, and its thing side is convex surface, and image side surface is concave surface；

3rd lens and the 4th lens are respectively provided with focal power；

5th lens have positive light coke, and its image side surface is convex surface；

6th lens have negative power, and its thing side and image side surface are concave surface；And

Total effective focal length f of the optical imaging lens and the Entry pupil diameters EPD of the optical imaging lens meet f/EPD≤ 1.6。

2. optical imaging lens according to claim 1, it is characterised in that the thing side of first lens to the light Study distance TTL and effective pixel area diagonal line length on the optical imaging lens imaging surface on the axle as lens imaging face Half ImgH meets TTL/ImgH≤1.5.

3. optical imaging lens according to claim 1, it is characterised in that the effective focal length f1 of first lens and institute State the first lens and meet 3 ＜ f1/CT1 ＜ 4 in the center thickness CT1 on the optical axis.

4. optical imaging lens according to claim 1, it is characterised in that second lens are on the optical axis Spacing distance T12s of the heart thickness CT2 with first lens and second lens on the optical axis meets 4 ＜ CT2/T12 ＜ 6.

5. optical imaging lens according to claim 1, it is characterised in that the radius of curvature of the second lens thing side R3 and the second lens image side surface radius of curvature R 4 meet 1.5 ＜ R3/R4 ＜ 2.5.

6. according to the optical imaging lens any one of claim 1,4 or 5, it is characterised in that the second lens tool There is negative power, its effective focal length f2 and the optical imaging lens total effective focal length f meet -2 ＜ f2/f ＜ -1.

7. optical imaging lens according to claim 1, it is characterised in that the radius of curvature of the 4th lens thing side R7 and the 4th lens image side surface radius of curvature R 8 meet -1 ＜ (R7-R8)/(R7+R8) ＜ 2.

8. optical imaging lens according to claim 1, it is characterised in that total effective focal length of the optical imaging lens F and the 5th lens image side surface radius of curvature R 10 meet -3 ＜ f/R10 ＜ -2.5.

9. the optical imaging lens according to claim 1 or 8, it is characterised in that the effective focal length f5 of the 5th lens Meet 0.5 ＜ f5/f ＜ 1 with total effective focal length f of the optical imaging lens.

10. optical imaging lens according to claim 1, it is characterised in that the curvature of the 6th lens thing side half Footpath R11 and the 6th lens image side surface radius of curvature R 12 meet -2 ＜ R11/R12 ＜ -1.5.

11. optical imaging lens according to any one of claim 1 to 4, it is characterised in that first lens, institute The second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens are stated respectively at the optical axis On the summation ∑ CT of center thickness and the thing side of first lens to the axle of the optical imaging lens imaging surface on away from Meet 0.5 ＜ ∑ CT/TTL ＜ 0.7 from TTL.

12. optical imaging lens, sequentially included by thing side to image side along optical axis：First lens, the second lens, the 3rd lens, Four lens, the 5th lens and the 6th lens, it is characterised in that

First lens and the 5th lens are respectively provided with positive light coke；

Second lens and the 6th lens are respectively provided with negative power；

At least one in 3rd lens and the 4th lens has positive light coke；

At least one in the thing side and image side surface of first lens is convex surface；

The thing side of 6th lens and image side surface are concave surface；And

The image side surface of 5th lens is convex surface, the radius of curvature R 10 of its image side surface and always having for the optical imaging lens Imitate focal length f and meet -3 ＜ f/R10 ＜ -2.5.