CN106154502B - A kind of pick-up lens and electronic equipment - Google Patents
A kind of pick-up lens and electronic equipment Download PDFInfo
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- CN106154502B CN106154502B CN201610866475.8A CN201610866475A CN106154502B CN 106154502 B CN106154502 B CN 106154502B CN 201610866475 A CN201610866475 A CN 201610866475A CN 106154502 B CN106154502 B CN 106154502B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
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Abstract
Include the first lens to the 5th lens set gradually from the object side to image side along same optical axis, also, the pick-up lens meets following relational expression the present invention provides a kind of pick-up lens and electronic equipment：1.3<TTL/Imgh<1.5；0.7<|f/f2|<0.8；0.4<|f/f3|+|f/f4|<0.75；3.2<R10/f<30；‑0.91≤(R9+R10)/(R9‑R10)<0, so as to by the parameter that each lens are reasonably arranged, under the premise of meeting high pixel, reduce the overall length of pick-up lens, to meet the requirement of pick-up lens and electronic equipment micromation.
Description
Technical field
The present invention relates to pick-up lens technical fields, more specifically to a kind of pick-up lens and electronic equipment.
Background technology
With the development of semiconductor technology, the pixel elemental area of photosensitive element is smaller and smaller, and the pixel of pick-up lens is also got over
Come higher.But the raising of pick-up lens pixel still cannot be satisfied increasingly increase of the people to pick-up lens image quality requirement,
This, which makes use of momentum, necessarily increases more lens elements to improve the image quality of pick-up lens.But the increase of lens element is again
The height of pick-up lens can be caused to increase, to cannot be satisfied the lightening demand of personal electric product.Based on this, how rationally
Ground designs the structure of pick-up lens and the parameter of pick-up lens interior lens, under the premise of meeting high pixel, meets camera shooting
The requirement of camera lens and electronic equipment micromation, has become those skilled in the art's one of the technical problems that are urgent to solve.
Invention content
In view of this, the present invention provides a kind of pick-up lens and electronic equipment, under the premise of meeting high pixel, to expire
The requirement of sufficient pick-up lens and electronic equipment micromation.
To achieve the above object, the present invention provides the following technical solutions：
A kind of pick-up lens includes the first lens to the 5th lens set gradually from the object side to image side along same optical axis；
First lens have positive refracting power, and the object side of first lens in paraxial place be convex surface：
Second lens have a negative refracting power, and the image side surface of second lens in paraxial place be concave surface；
The third lens have a positive refracting power, the object sides of the third lens in paraxial place be concave surface, image side surface in
Paraxial place is convex surface；
4th lens have a negative refracting power, and the object side of the 4th lens in paraxial place be concave surface；
5th lens have a positive refracting power, the object sides of the 5th lens in paraxial place be convex surface, image side surface in
Paraxial place is concave surface, and at least one of the object side of the 5th lens and image side surface surface are provided at least one contrary flexure
Point；
The pick-up lens further includes aperture, between the aperture setting object and first lens, alternatively, described
Aperture is arranged between object and second lens；
Also, the pick-up lens meets following relational expression：
1.3<TTL/Imgh<1.5；0.7<|f/f2|<0.8；
0.4<|f/f3|+|f/f4|<0.75；3.2<R10/f<30；-0.91≤(R9+R10)/(R9-R10)<0；
Wherein, TTL is the overall length of the pick-up lens, ImghFor the maximum image height of the pick-up lens, f is the camera shooting
The effective focal length of camera lens, f2For the focal length of second lens, f3For the focal length of the third lens, f4For the 4th lens
Focal length, R9For the radius of curvature of the object side of the 4th lens, R10For the radius of curvature of the image side surface of the 4th lens.
Preferably, the pick-up lens also meets relational expression：-8<f3/f2<-3。
Preferably, the pick-up lens also meets relational expression：0.7<R6/f<0.85；
Wherein, R6For the radius of curvature of the image side surface of second lens.
Preferably, the pick-up lens also meets relational expression：
-0.4<R12/R8<-0.1；
Wherein, R8For the radius of curvature of the image side surface of the third lens, R12For the song of the image side surface of the 5th lens
Rate radius.
Preferably, the pick-up lens also meets relational expression：
1.2<CT5/CT4<1.5；0.6<TD/(2*SD52)<0.8；
Wherein, CT4It is the 4th lens in the thickness on optical axis, CT5It is the 5th lens in the thickness on optical axis,
TD be first lens object side to the 5th lens image side surface in the distance on optical axis, SD52Thoroughly for the described 5th
The maximum effective radius position of the image side surface of mirror is in the vertical range on optical axis.
Preferably, the pick-up lens also meets relational expression：
0.9<SAG11/EF1<1.6；0.4<|Drls|/CT1<1.1；
Wherein, SAG11For first lens intersection point of the object side on optical axis to the first lens object side and picture
The maximum effectively path position of side is in the horizontal displacement distance on optical axis, EF1Between the first lens object side and image side surface
Be parallel to minimum horizontal distance on the non-axis of optical axis, Drls be the first lens object side to the aperture on optical axis away from
From CT1It is first lens in the thickness on optical axis.
Preferably, the pick-up lens also meets relational expression：
1.6<TD/EPD<2.0；
Wherein, TD be first lens object side to the 5th lens image side surface in the distance on optical axis, EPD
For the Entry pupil diameters of the pick-up lens.
Preferably, the pick-up lens also meets relational expression：
V3-V4>30；
Wherein, V3 is the abbe number of the third lens, and V4 is the abbe number of the 4th lens.
Preferably, the pick-up lens further includes the infrared fileter positioned at the image side of the 5th lens.
A kind of electronic equipment, including any one of them pick-up lens as above.
Compared with prior art, technical solution provided by the present invention has the following advantages：
Pick-up lens and electronic equipment provided by the present invention include being set gradually from the object side to image side along same optical axis
First lens are to the 5th lens, also, the pick-up lens meets relational expression：1.3<TTL/Imgh<1.5；0.7<|f/f2|<0.8；
0.4<|f/f3|+|f/f4|<0.75,3.2<R10/f<30, -0.91≤(R9+R10)/(R9-R10)<0, so as to by reasonable
The parameter of each lens is arranged in ground, under the premise of meeting high pixel, reduces the overall length of pick-up lens, with meet pick-up lens and
The requirement of electronic equipment micromation.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram of pick-up lens disclosed in embodiment of the present invention one；
Fig. 2 is the curvature of field and distortion curve figure of pick-up lens disclosed in embodiment of the present invention one；
Fig. 3 is the spherical aberration curve graph of pick-up lens disclosed in embodiment of the present invention one；
Fig. 4 is the structural schematic diagram of pick-up lens disclosed in embodiment of the present invention two；
Fig. 5 is the curvature of field and distortion curve figure of pick-up lens disclosed in embodiment of the present invention two；
Fig. 6 is the spherical aberration curve graph of pick-up lens disclosed in embodiment of the present invention two；
Fig. 7 is the structural schematic diagram of pick-up lens disclosed in embodiment of the present invention three；
Fig. 8 is the curvature of field and distortion curve figure of pick-up lens disclosed in embodiment of the present invention three；
Fig. 9 is the spherical aberration curve graph of pick-up lens disclosed in embodiment of the present invention three；
Figure 10 is the structural schematic diagram of pick-up lens disclosed in embodiment of the present invention four；
Figure 11 is the curvature of field and distortion curve figure of pick-up lens disclosed in embodiment of the present invention four；
Figure 12 is the spherical aberration curve graph of pick-up lens disclosed in embodiment of the present invention four；
Figure 13 is the structural schematic diagram of pick-up lens disclosed in embodiment of the present invention five；
Figure 14 is the curvature of field and distortion curve figure of pick-up lens disclosed in embodiment of the present invention five；
Figure 15 is the spherical aberration curve graph of pick-up lens disclosed in embodiment of the present invention five；
Figure 16 is the structural schematic diagram of pick-up lens disclosed in embodiment of the present invention six；
Figure 17 is the curvature of field and distortion curve figure of pick-up lens disclosed in embodiment of the present invention six；
Figure 18 is the spherical aberration curve graph of pick-up lens disclosed in embodiment of the present invention six.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a kind of pick-up lens, which can be applied in the optical system of zoom, example
Such as, it can be applied in the electronic equipments such as 3D image capturings, digital camera, mobile device, digital flat panel and head-wearing type equipment.
With reference to figure 1, pick-up lens provided in an embodiment of the present invention includes being set gradually from the object side to image side along same optical axis
The first lens 11, the second lens 12, the third lens 13, the 4th lens 14, the 5th lens 15, aperture 16, infrared fileter 17
With photosensitive element 18, which is located at the image side of optical filter 17, and the photosensitive element is for incuding subject reflection
Into pick-up lens light and form corresponding image.
In the present embodiment, aperture 16 can be preposition aperture, or in set aperture.Wherein, preposition aperture refers to aperture 16
Be set between object and the first lens 11, in set aperture refer to that aperture 16 is set between object and the second lens 12.
The position of aperture 16 through reasonable settings can effectively shorten the optics total length of pick-up lens.In addition to this, it takes the photograph at this
As in camera lens, when aperture 16 is arranged closer to the second lens 12, then more contributing to the field angle for expanding pick-up lens, contributing to
Distortion and the amendment of ratio chromatism, and can effectively reduce the susceptibility of the pick-up lens.
Specifically, the first lens 11 in the present embodiment have positive refracting power, it is possible to provide needed for pick-up lens optical system
Positive refracting power, and the object side of the first lens 11 in paraxial place be convex surface, contribute to shorten pick-up lens optical system it is total
Length；Second lens 12 have negative refracting power, are conducive to correct aberration caused by the first lens 11, and the second lens 12
Image side surface in paraxial place be concave surface；The third lens 13 have positive refracting power, help to reduce the quick of pick-up lens optical system
Sensitivity, and it in paraxial place is convex surface that the object side of the third lens 13, which in paraxial place is concave surface, image side surface, can effectively correct camera shooting
The astigmatism of lens optical system；4th lens 14 have a negative refracting power, and the object side of the 4th lens 14 in paraxial place be concave surface,
Its object side and image side surface are aspherical, help to reinforce correcting aberration, and the light that can suppress off-axis visual field is incident on sense
Angle on optical element, to increase the receiving efficiency of photosensitive element；5th lens 15 have positive refracting power, the object of the 5th lens 15
It in paraxial place is concave surface that side, which is convex surface, image side surface in paraxial place, can help to the amendment for reinforcing astigmatism, the object of the 5th lens 15
Side and image side surface are aspherical, and at least one of the object side of the 5th lens 15 and image side surface surface are provided at least
One point of inflexion, can effective modified off-axis aberration.Further, since therefore the image side surface of the 5th lens 15, which is concave surface, can make camera shooting
Lens optical system principal point is far from imaging surface, to shorten the total length of pick-up lens optical system.
In the present embodiment, pick-up lens meets following relational expression：
1.3<TTL/Imgh<1.5；0.7<|f/f2|<0.8；
0.4<|f/f3|+|f/f4|<0.75；3.2<R10/f<30；-0.91≤(R9+R10)/(R9-R10)<0；
Wherein, TTL is the overall length of the pick-up lens, ImghFor the maximum image height of the pick-up lens, f is the camera shooting
The effective focal length of camera lens, f2For the focal length of second lens, f3For the focal length of the third lens, f4For the 4th lens
Focal length, R9For the radius of curvature of the object side of the 4th lens, R10For the radius of curvature of the image side surface of the 4th lens.
Based on this, the present embodiment can by the way that the parameters of 11 to the 5th lens 15 of the first lens is reasonably arranged, realize it is a kind of have at
The big pick-up lens of image sharpness height, small volume, field angle.
Wherein, the pick-up lens in the present embodiment meets relational expression 3.2<R10/f<30, contribute to by adjusting the 4th lens
The bending degree of 14 image side surfaces reconciles the marginal aberration of pick-up lens optical system, while shortening the total length of optical system,
Preferably, which meets following relationship：25<R10/f<30；Meet relational expression 0.7<|f/f2|<0.8, it can help to
Correct aberration caused by the first lens 11；Meet relational expression 1.3<TTL/Imgh<1.5, help to maintain pick-up lens optical system
The micromation of system, to be equipped on frivolous portable electronic product；Meet relational expression 0.4<|f/f3|+|f/f4|<0.75, it can
So that refracting power configuration more balances, the susceptibility of optical system is advantageously reduced, the micromation of optical system is maintained；Meet and closes
It is formula -0.91≤(R9+R10)/(R9-R10)<0, help to maintain to reduce spherical aberration while optical system micromation.
Further, in this embodiment pick-up lens also meet relational expression：
-8<f3/f2<-3；-0.4<R12/R8<-0.1；0.7<R6/f<0.85；1.2<CT5/CT4<1.5；0.6<TD/(2*
SD52)<0.8；0.9<SAG11/EF1<1.6；0.4<|Drls|/CT1<1.1；
1.6<TD/EPD<2.0；V3-V4>30；
Wherein, R6For the radius of curvature of the image side surface of second lens, R8For the curvature of the image side surface of the third lens
Radius, R12For the radius of curvature of the image side surface of the 5th lens, CT4It is the 4th lens in the thickness on optical axis, CT5For
5th lens in the thickness on optical axis, TD be first lens object side to the 5th lens image side surface in light
Distance on axis, SD52For the 5th lens image side surface maximum effective radius position in the vertical range on optical axis,
SAG11Maximum for intersection point to the first lens object side and image side surface of the object side on optical axis of first lens has
Path position is imitated in the horizontal displacement distance on optical axis, EF1It is parallel to optical axis between the first lens object side and image side surface
Minimum horizontal distance on non-axis, Drls is for the first lens object side to the aperture in the distance on optical axis, CT1It is described
For first lens in the thickness on optical axis, EPD is the Entry pupil diameters of the pick-up lens, and V3 is the dispersion system of the third lens
Number, V4 are the abbe number of the 4th lens.
In the present embodiment, pick-up lens meets relational expression 1.2<CT5/CT4<1.5, thickness configuration can be made more to balance, kept away
It is bad to exempt from eyeglass molding, improves production；Meet relational expression -8<f3/f2<- 3, refracting power configuration can be made more to balance, favorably
In the susceptibility for reducing pick-up lens optical system, the micromation of optical system is maintained；Meet relational expression 0.6<TD/(2*SD52)<
0.8, help to reduce the space needed for eyeglass assembling so that it is configured more closely；Meet relational expression -0.4<R12/R8<-
0.1, it can effectively correct Petzval sum number；Meet relational expression V3-V4>30, it can effectively correct optical system aberration；Meet relational expression
0.9<SAG11/EF1<1.6, it can be under the configuration of large aperture condition so that and the first lens 11 have preferable light aggregate capabilities,
And help to be promoted the configuration of 11 refracting power of the first lens, effectively reduce the total length of optical system；Meet relational expression 1.6<TD/
EPD<2.0, the light-inletting quantity of pick-up lens can be increased, while maintaining its micromation；Meet relational expression 0.4<|Drls|/CT1<1.1
The light aggregate capabilities of the first lens 11 can be promoted；Meet relational expression 0.7<R6/f<0.85, contribute to the picture for reducing pick-up lens
Difference.
It is further preferred that the pick-up lens in the embodiment of the present invention meets following relational expression：
-7.8<f3/f2<-3.6；0.76<R6/f<0.81；-0.34<R12/R8<-0.13；
1.22<CT5/CT4<1.48；.62<TD/(2*SD52)<0.73；0.84<SAG11/EF1<1.54；
0.45<|Drls|/CT1<1.04；1.88<TD/EPD<1.94；V3-V4>32.68。
Based on this, the parameter of each eyeglass of pick-up lens can be advanced optimized, under the premise of meeting high pixel, further
Reduce the overall length of pick-up lens, maintains the micromation of pick-up lens and electronic equipment.
In the present embodiment, the material of 11 to the 5th lens 15 of the first lens can be glass or plastics, if the material of lens is
Glass can then increase the degree of freedom of pick-up lens refracting power configuration, if the material of lens is plastics, can effectively reduce
The production cost of pick-up lens.In addition, each minute surface of 11 to the 5th lens 15 of the first lens is set as aspherical, can get more
Controlled variable, to cut down aberration, and then the number that lens use can be shortened, reduce the total length of pick-up lens.
In the present embodiment, the first lens 11, the second lens 12, the third lens 13, the 4th lens 14 and the 5th lens 15
At least one to be aspherical in object side and image side surface, optionally, object side and image side surface are aspherical.In order to further
The image quality of the optical imaging lens is ensured, the first lens 1 in the above-mentioned any one embodiment of the application to
Any one aspheric curve of five lens 15 is satisfied by following relational expression：
Wherein, the z indicates that the Z coordinate value of lens surface each point, r indicate the Y axis coordinate value of each point on lens surface, c
For the inverse of the radius of curvature R of lens surface, k is circular cone coefficient, α1、α2、α3、α4、α5、α6、α7、α8For even aspheric surface coefficient.
In the description of following each preferred embodiments, the lens that the present embodiment further discloses optical imaging lens are non-
The design parameter and other parameters of spherical surface.
Embodiment one
In present embodiment, including the pick-up lens of 11 to the 5th lens 15 of the first lens, aperture 16 and optical filter 17
Structure as shown in Figure 1, the curvature of field and distortion curve figure as shown in Fig. 2, spherical aberration curve graph is as shown in Figure 3.
Wherein, the design parameter reference table 1-1 of 11 to the 5th lens 15 of the first lens, aperture 16 and optical filter 17, the
The aspherical design parameter of one lens, 11 to the 5th lens 15 is as shown in table 1-2.In table 1-1 and table 1-2, surface 2 indicates the
The object side surface of one lens 11, surface 3 indicate the image side surface of the first lens 11, the object side surface of 4 second lens 12 of surface, table
Face 5 indicates that the image side surface of the second lens 12, the object side surface of 6 the third lens 13 of surface, surface 7 indicate the picture of the third lens 13
Side surface, the object side surface of the 4th lens 14 of surface 8, surface 9 indicate the image side surface of the 4th lens 14, the 5th lens of surface 10
15 object side surface, surface 11 indicate that the image side surface of the 5th lens 15, surface 12 indicate the object side surface of optical filter 17, surface
13 indicate the image side surface of optical filter 17.
Table 1-1
Table 1-2
Specifically, TTL/I in present embodimentmgh=1.34, meet 1.3<TTL/Imgh<1.5 relational expression；
|f/f2|=0.74, meet 0.7<|f/f2|<0.8 relational expression；
|f/f3|+|f/f4|=0.41, meet 0.4<|f/f3|+|f/f4|<0.75 relational expression；
R10/ f=25.36 meets 3.2<R10/f<30 relational expression；
(R9+R10)/(R9-R10)=- 0.84 meets -0.91≤(R9+R10)/(R9-R10)<0 relational expression；
f3/f2=-7.16 meet -8<f3/f2<- 3 relational expression；
R12/R8=-0.24 meets -0.4<R12/R8<- 0.1 relational expression；
R6/ f=0.81 meets 0.7<R6/f<0.85 relational expression；
CT5/CT4=1.33, meet 1.2<CT5/CT4<1.5 relational expression；
TD/(2*SD52)=0.63 meets 0.6<TD/(2*SD52)<0.8 relational expression；
SAG11/EF1=0.98, meet 0.9<SAG11/EF1<1.6 relational expression；
|Drls|/CT1=0.47, meet 0.4<|Drls|/CT1<1.1；
TD/EPD=1.90 meets 1.6<TD/EPD<2.0 relational expression；
V3-V4=32.58, meet V3-V4>30 relational expression.
Further, in the present embodiment, the effective focal length f of pick-up lens be 3.47mm, f-number Fno be 2.28,
Angle of half field-of view HFOV is 39.895 °.
Embodiment two
In present embodiment, including the pick-up lens of 11 to the 5th lens 15 of the first lens, aperture 16 and optical filter 17
Structure as shown in figure 4, the curvature of field and distortion curve figure as shown in figure 5, spherical aberration curve graph is as shown in Figure 6.First lens 11 to the 5th
The design parameter reference table 2-1 of lens 15, aperture 16 and optical filter 17,11 to the 5th lens 15 of the first lens it is aspherical
Design parameter is as shown in table 2-2.
Table 2-1
Table 2-2
Specifically, TTL/I in present embodimentmgh=1.34, meet 1.3<TTL/Imgh<1.5 relational expression；
|f/f2|=0.73, meet 0.7<|f/f2|<0.8 relational expression；
|f/f3|+|f/f4|=0.71, meet 0.4<|f/f3|+|f/f4|<0.75 relational expression；
R10/ f=26.30 meets 3.2<R10/f<30 relational expression；
(R9+R10)/(R9-R10)=- 0.9 meets -0.91≤(R9+R10)/(R9-R10)<0 relational expression；
f3/f2=-3.52 meet -8<f3/f2<- 3 relational expression；
R12/R8=-0.34 meets -0.4<R12/R8<- 0.1 relational expression；
R6/ f=0.76 meets 0.7<R6/f<0.85 relational expression；
CT5/CT4=1.48, meet 1.2<CT5/CT4<1.5 relational expression；
TD/(2*SD52)=0.63 meets 0.6<TD/(2*SD52)<0.8 relational expression；
SAG11/EF1=1, meet 0.9<SAG11/EF1<1.6 relational expression；
|Drls|/CT1=0.48, meet 0.4<|Drls|/CT1<1.1；
TD/EPD=1.94 meets 1.6<TD/EPD<2.0 relational expression；
V3-V4=32.58, meet V3-V4>30 relational expression.
Further, in the present embodiment, the effective focal length f of pick-up lens is 3.48mm, and f-number Fno is 2.29,
Angle of half field-of view HFOV is 39.75 °.
Embodiment three
In present embodiment, including the pick-up lens of 11 to the 5th lens 15 of the first lens, aperture 16 and optical filter 17
Structure as shown in fig. 7, the curvature of field and distortion curve figure as shown in figure 8, spherical aberration curve graph is as shown in Figure 9.First lens 11 to the 5th
The design parameter reference table 3-1 of lens 15, aperture 16 and optical filter 17,11 to the 5th lens 15 of the first lens it is aspherical
Design parameter is as shown in table 3-2.
Table 3-1
Table 3-2
Specifically, TTL/I in present embodimentmgh=1.36, meet 1.3<TTL/Imgh<1.5 relational expression；
|f/f2|=0.74, meet 0.7<|f/f2|<0.8 relational expression；
|f/f3|+|f/f4|=0.44, meet 0.4<|f/f3|+|f/f4|<0.75 relational expression；
R10/ f=13.65 meets 3.2<R10/f<30 relational expression；
(R9+R10)/(R9-R10)=- 0.72 meets -0.91≤(R9+R10)/(R9-R10)<0 relational expression；
f3/f2=-6.75 meet -8<f3/f2<- 3 relational expression；
R12/R8=-0.13 meets -0.4<R12/R8<- 0.1 relational expression；
R6/ f=0.8 meets 0.7<R6/f<0.85 relational expression；
CT5/CT4=1.22, meet 1.2<CT5/CT4<1.5 relational expression；
TD/(2*SD52)=0.73 meets 0.6<TD/(2*SD52)<0.8 relational expression；
SAG11/EF1=0.84, meet 0.9<SAG11/EF1<1.6 relational expression；
|Drls|/CT1=0.45, meet 0.4<|Drls|/CT1<1.1；
TD/EPD=1.92 meets 1.6<TD/EPD<2.0 relational expression；
V3-V4=32.58, meet V3-V4>30 relational expression.
Further, in the present embodiment, the effective focal length f of pick-up lens is 3.47mm, and f-number Fno is 2.29,
Angle of half field-of view HFOV is 39.22 °.
Embodiment four
In present embodiment, including the pick-up lens of 11 to the 5th lens 15 of the first lens, aperture 16 and optical filter 17
Structure is as shown in Figure 10, and the curvature of field and distortion curve figure are as shown in figure 11, and spherical aberration curve graph is as shown in figure 12.First lens 11 are to
The design parameter reference table 4-1 of five lens 15, aperture 16 and optical filter 17,11 to the 5th lens 15 of the first lens it is aspherical
Design parameter as shown in table 4-2.
Table 4-1
Table 4-2
Specifically, TTL/I in present embodimentmgh=1.34, meet 1.3<TTL/Imgh<1.5 relational expression；
|f/f2|=0.80, meet 0.7<|f/f2|<0.8 relational expression；
|f/f3|+|f/f4|=0.5, meet 0.4<|f/f3|+|f/f4|<0.75 relational expression；
R10/ f=3.29 meets 3.2<R10/f<30 relational expression；
(R9+R10)/(R9-R10)=- 0.01 meets -0.91≤(R9+R10)/(R9-R10)<0 relational expression；
f3/f2=-8 meet -8<f3/f2<- 3 relational expression；
R12/R8=-0.25 meets -0.4<R12/R8<- 0.1 relational expression；
R6/ f=0.76 meets 0.7<R6/f<0.85 relational expression；
CT5/CT4=1.35, meet 1.2<CT5/CT4<1.5 relational expression；
TD/(2*SD52)=0.64 meets 0.6<TD/(2*SD52)<0.8 relational expression；
SAG11/EF1=1.30, meet 0.9<SAG11/EF1<1.6 relational expression；
|Drls|/CT1=0.54, meet 0.4<|Drls|/CT1<1.1；
TD/EPD=1.68 meets 1.6<TD/EPD<2.0 relational expression；
V3-V4=32.58, meet V3-V4>30 relational expression.
Further, in the present embodiment, the effective focal length f of pick-up lens is 3.46mm, and f-number Fno is 2.16,
Angle of half field-of view HFOV is 39.76 °.
Embodiment five
In present embodiment, including the pick-up lens of 11 to the 5th lens 15 of the first lens, aperture 16 and optical filter 17
Structure is as shown in figure 13, and the curvature of field and distortion curve figure are as shown in figure 14, and spherical aberration curve graph is as shown in figure 15.First lens 11 are to
The design parameter reference table 5-1 of five lens 15, aperture 16 and optical filter 17,11 to the 5th lens 15 of the first lens it is aspherical
Design parameter as shown in table 5-2.
Table 5-1
Table 5-2
Specifically, TTL/I in present embodimentmgh=1.42, meet 1.3<TTL/Imgh<1.5 relational expression；
|f/f2|=0.73, meet 0.7<|f/f2|<0.8 relational expression；
|f/f3|+|f/f4|=0.43, meet 0.4<|f/f3|+|f/f4|<0.75 relational expression；
R10/ f=28.28 meets 3.2<R10/f<30 relational expression；
(R9+R10)/(R9-R10)=- 0.86 meets -0.91≤(R9+R10)/(R9-R10)<0 relational expression；
f3/f2=-7.34 meet -8<f3/f2<- 3 relational expression；
R12/R8=-0.24 meets -0.4<R12/R8<- 0.1 relational expression；
R6/ f=0.81 meets 0.7<R6/f<0.85 relational expression；
CT5/CT4=1.34, meet 1.2<CT5/CT4<1.5 relational expression；
TD/(2*SD52)=0.64 meets 0.6<TD/(2*SD52)<0.8 relational expression；
SAG11/EF1=1.54, meet 0.9<SAG11/EF1<1.6 relational expression；
|Drls|/CT1=1.04, meet 0.4<|Drls|/CT1<1.1；
TD/EPD=1.89 meets 1.6<TD/EPD<2.0 relational expression；
V3-V4=32.68, meet V3-V4>30 relational expression.
Further, in the present embodiment, the effective focal length f of pick-up lens is 3.47mm, and f-number Fno is 2.43,
Angle of half field-of view HFOV is 39.82 °.
Embodiment six
In present embodiment, including the pick-up lens of 11 to the 5th lens 15 of the first lens, aperture 16 and optical filter 17
Structure is as shown in figure 16, and the curvature of field and distortion curve figure are as shown in figure 17, and spherical aberration curve graph is as shown in figure 18.First lens 11 are to
The design parameter reference table 6-1 of five lens 15, aperture 16 and optical filter 17,11 to the 5th lens 15 of the first lens it is aspherical
Design parameter as shown in table 6-2.
Table 6-1
Table 6-2
Specifically, TTL/I in present embodimentmgh=1.32, meet 1.3<TTL/Imgh<1.5 relational expression；
|f/f2|=0.74, meet 0.7<|f/f2|<0.8 relational expression；
|f/f3|+|f/f4|=0.44, meet 0.4<|f/f3|+|f/f4|<0.75 relational expression；
R10/ f=28.98 meets 3.2<R10/f<30 relational expression；
(R9+R10)/(R9-R10)=- 0.87 meets -0.91≤(R9+R10)/(R9-R10)<0 relational expression；
f3/f2=-7.79 meet -8<f3/f2<- 3 relational expression；
R12/R8=-0.21 meets -0.4<R12/R8<- 0.1 relational expression；
R6/ f=0.80 meets 0.7<R6/f<0.85 relational expression；
CT5/CT4=1.41, meet 1.2<CT5/CT4<1.5 relational expression；
TD/(2*SD52)=0.62 meets 0.6<TD/(2*SD52)<0.8 relational expression；
SAG11/EF1=0.92, meet 0.9<SAG11/EF1<1.6 relational expression；
|Drls|/CT1=0.46, meet 0.4<|Drls|/CT1<1.1；
TD/EPD=1.88 meets 1.6<TD/EPD<2.0 relational expression；
V3-V4=32.58, meet V3-V4>30 relational expression.
Further, in the present embodiment, the effective focal length f of pick-up lens is 3.47mm, and f-number Fno is 2.28,
Angle of half field-of view HFOV is 39.68 °.
The distortion of pick-up lens disclosed in the above embodiments of the present application, the curvature of field and spherical aberration are smaller, and imaging distortion is small,
Clarity is high, and stereovision is abundant, and optical system total length is smaller, can meet wanting for pick-up lens and electronic equipment micromation
It asks.
It is understood that be directed to pick-up lens disclosed in the above embodiments of the present application, the application is also with having opened one kind
The concrete application of pick-up lens, specifically, disclosed herein as well is a kind of electronic equipment using the pick-up lens, the electricity
Sub- equipment can include pick-up lens disclosed in the above-mentioned any one embodiment of the application.Wherein, the electronic equipment can be specific
For electronic product equipments such as mobile phone, tablet, laptop, camera, video cameras.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only that
A little elements, but also include other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.To the upper of the disclosed embodiments
It states bright, enables those skilled in the art to implement or use the present invention.Various modifications to these embodiments are to ability
It will be apparent for the professional technician in domain, the general principles defined herein can not depart from the present invention's
In the case of spirit or scope, realize in other embodiments.Therefore, the present invention be not intended to be limited to it is shown in this article these
Embodiment, and it is to fit to widest range consistent with the principles and novel features disclosed in this article.
Claims (10)
1. a kind of pick-up lens, which is characterized in that include the first lens for being set gradually from the object side to image side along same optical axis extremely
5th lens；
First lens have positive refracting power, and the object side of first lens in paraxial place be convex surface：
Second lens have a negative refracting power, and the image side surface of second lens in paraxial place be concave surface；
The third lens have positive refracting power, and the object side of the third lens is in paraxial place is concave surface, image side surface is in paraxial
Place is convex surface；
4th lens have a negative refracting power, and the object side of the 4th lens in paraxial place be concave surface；
5th lens have positive refracting power, and the object side of the 5th lens is in paraxial place is convex surface, image side surface is in paraxial
Place is concave surface, and at least one of the object side of the 5th lens and image side surface surface are provided at least one point of inflexion；
The pick-up lens further includes aperture, and the aperture is arranged between object and first lens, alternatively, the light
Circle is arranged between object and second lens；
Also, the pick-up lens meets following relational expression：
1.3<TTL/Imgh<1.5；0.7<|f/f2|<0.8；
0.4<|f/f3|+|f/f4|<0.75；3.2<R10/f<30；-0.91≤(R9+R10)/(R9-R10)<0；
Wherein, TTL is the overall length of the pick-up lens, ImghFor the maximum image height of the pick-up lens, f is the pick-up lens
Effective focal length, f2For the focal length of second lens, f3For the focal length of the third lens, f4For the coke of the 4th lens
Away from R9For the radius of curvature of the object side of the 4th lens, R10For the radius of curvature of the image side surface of the 4th lens.
2. pick-up lens according to claim 1, which is characterized in that the pick-up lens also meets relational expression：-8<f3/f2
<-3。
3. pick-up lens according to claim 1, which is characterized in that the pick-up lens also meets relational expression：0.7<R6/f
<0.85；
Wherein, R6For the radius of curvature of the image side surface of second lens.
4. pick-up lens according to claim 1, which is characterized in that the pick-up lens also meets relational expression：
-0.4<R12/R8<-0.1；
Wherein, R8For the radius of curvature of the image side surface of the third lens, R12For the curvature half of the image side surface of the 5th lens
Diameter.
5. pick-up lens according to claim 1, which is characterized in that the pick-up lens also meets relational expression：
1.2<CT5/CT4<1.5；0.6<TD/(2*SD52)<0.8；
Wherein, CT4It is the 4th lens in the thickness on optical axis, CT5It is the 5th lens in the thickness on optical axis, TD is
The object side of first lens to the 5th lens image side surface in the distance on optical axis, SD52For the 5th lens
The maximum effective radius position of image side surface is in the vertical range on optical axis.
6. pick-up lens according to claim 1, which is characterized in that the pick-up lens also meets relational expression：
0.9<SAG11/EF1<1.6；0.4<|Drls|/CT1<1.1；
Wherein, SAG11For first lens intersection point of the object side on optical axis to the first lens object side and image side surface
Maximum effectively path position in the horizontal displacement distance on optical axis, EF1It is parallel between image side surface for the first lens object side
In minimum horizontal distance on the non-axis of optical axis, Drls is the first lens object side to the aperture in the distance on optical axis,
CT1It is first lens in the thickness on optical axis.
7. pick-up lens according to claim 1, which is characterized in that the pick-up lens also meets relational expression：
1.6<TD/EPD<2.0；
Wherein, TD be first lens object side to the 5th lens image side surface in the distance on optical axis, EPD is institute
State the Entry pupil diameters of pick-up lens.
8. pick-up lens according to claim 1, which is characterized in that the pick-up lens also meets relational expression：
V3-V4>30；
Wherein, V3 is the abbe number of the third lens, and V4 is the abbe number of the 4th lens.
9. pick-up lens according to claim 1, which is characterized in that the pick-up lens further includes being located at the described 5th thoroughly
The infrared fileter of image side.
10. a kind of electronic equipment, which is characterized in that including claim 1~9 any one of them pick-up lens.
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| CN201610866475.8A CN106154502B (en) | 2016-09-29 | 2016-09-29 | A kind of pick-up lens and electronic equipment |
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| TWI613481B (en) | 2017-02-08 | 2018-02-01 | 大立光電股份有限公司 | Photographing optical lens assembly, image capturing unit and electronic device |
| CN108152922B (en) * | 2017-12-25 | 2020-06-09 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
| CN110161650B (en) * | 2018-02-14 | 2021-07-20 | 新巨科技股份有限公司 | Four-piece infrared single-wavelength lens group |
| JP2020052119A (en) * | 2018-09-25 | 2020-04-02 | 株式会社Ｓｃｒｅｅｎホールディングス | Image processing method and image processing device |
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