CN105988200B - Imaging system, image-taking device and electronic device - Google Patents
Imaging system, image-taking device and electronic device Download PDFInfo
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- CN105988200B CN105988200B CN201510091796.0A CN201510091796A CN105988200B CN 105988200 B CN105988200 B CN 105988200B CN 201510091796 A CN201510091796 A CN 201510091796A CN 105988200 B CN105988200 B CN 105988200B
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Abstract
The invention discloses a kind of imaging system, image-taking device and electronic devices.Imaging system includes sequentially the first lens, the second lens, the third lens, the 4th lens and the 5th lens by object side to image side.It is convex surface that first lens, which have positive refracting power, the paraxial place in object side surface,.It is concave surface that second lens, which have negative refracting power, the paraxial place in image side surface,.The third lens have refracting power.4th lens have refracting power, and the paraxial place in image side surface is concave surface and off-axis place includes an at least convex surface, and object side surface and image side surface are all aspherical.It is convex surface that 5th lens, which have refracting power, the paraxial place in object side surface, and the paraxial place in image side surface is concave surface and off-axis place includes an at least convex surface, and object side surface and image side surface are all aspherical.When a specific condition is satisfied, the generation collided between eyeglass when can effectively avoid assembling.Invention additionally discloses with above-mentioned imaging system image-taking device and with the electronic device of image-taking device.
Description
Technical field
The present invention relates to a kind of imaging system and image-taking devices, and more particularly to a kind of application on the electronic device small-sized
Change imaging system and image-taking device.
Background technology
In recent years, with the rise of the portable electronic product with camera function, the demand of optical system increasingly improves.
The photosensitive element of general optical system is nothing more than being photosensitive coupling element (Charge Coupled Device, CCD) or complementarity
Matal-oxide semiconductor element (Complementary Metal-Oxide Semiconductor Sensor, CMOS
Sensor) two kinds, and progressing greatly with semiconductor process technique so that the Pixel Dimensions of photosensitive element reduce, optical system by
Gradually develop toward high pixel neighborhoods, therefore the requirement to image quality also increasingly increases.
Tradition is equipped on the optical system on electronic device, mostly uses based on quadruple lenses structure, lens shape is matched
Set and often result in the periphery relative illumination of short overall length optical system and reduce, and lead to the problem of eyeglass be molded it is bad so that known
Optical system will be unable to the photography demand for meeting higher order.
Although making further progress general traditional five chip optical systems at present, the variation of its lens thickness is excessive and occurs
It is molded undesirable situation, also due to eyeglass refracting power is too strong so that susceptibility is excessively high, so that light angle variation causes greatly very much
The problems such as face is reflected.
Invention content
The purpose of the present invention is to provide a kind of imaging system, image-taking device and electronic devices, averagely configure the 4th
Lens and the 5th lens are in paraxial place to the thickness located off axis, and to improve, lens thickness variation is excessive to bring molding is undesirable to ask
Topic, and be conducive to the configuration of the third lens, the 4th lens and the 5th lens, and reduce the possibility collided between eyeglass when assembling.
Furthermore present invention can ensure that the third lens have smaller refracting power in paraxial place, solve the problems, such as image center over-correction, and
Help to obtain balance between achromatism and higher order aberratons.
A kind of imaging system is provided according to the present invention, includes sequentially the first lens, the second lens, third by object side to image side
Lens, the 4th lens and the 5th lens.It is convex surface that first lens, which have positive refracting power, the paraxial place in object side surface,.Second thoroughly
It is concave surface that mirror, which has negative refracting power, the paraxial place in image side surface,.The 4th paraxial place in lens image side surface is concave surface and off-axis place's packet
Containing an at least convex surface, object side surface and image side surface are all aspherical.The 5th paraxial place in lens object side surface is convex surface, picture
The paraxial place in side surface is concave surface and off-axis place includes an at least convex surface, and object side surface and image side surface are all aspherical.Imaging
The lens sum of system is five, is in the thickness on optical axis with a air gap, the 4th lens between two adjacent lens
CT4, the third lens are T34 in the spacing distance on optical axis with the 4th lens, and the 4th lens and the 5th lens are between on optical axis
Gauge is f from the focal length for T45, imaging system, and the radius of curvature of the third lens object side surface is R5, the third lens image side table
The radius of curvature in face is R6, and the abbe number of the second lens is V2, and the abbe number of the third lens is V3, the dispersion of the 4th lens
Coefficient is V4, meets following condition：
CT4/T34<1.20；
CT4/T45<1.60；
|f/R5|+|f/R6|<1.10；And
1.75<(V2+V4)/V3。
A kind of image-taking device is separately provided according to the present invention, including the photosensitive member of imaging system and electronics as mentioned in the previous paragraph
Part, wherein electronics photosensitive element are set to the imaging surface of imaging system.
A kind of electronic device is provided again according to the present invention, including image-taking device as mentioned in the previous paragraph.
When CT4/T34 meets above-mentioned condition, be conducive to the configuration of the third lens and the 4th lens, mirror when being assembled to reduce
The possibility collided between piece.
When CT4/T45 meets above-mentioned condition, be conducive to the configuration of the 4th lens and the 5th lens, mirror when being assembled to reduce
The possibility collided between piece.
When | f/R5 |+| f/R6 | when meeting above-mentioned condition, it can be ensured that the third lens have smaller refracting power in paraxial place, with
Solve the problems, such as image center over-correction.
When (V2+V4)/V3 meets above-mentioned condition, help to obtain balance between achromatism and higher order aberratons.
Description of the drawings
Fig. 1 is painted a kind of schematic diagram of image-taking device according to first embodiment of the invention；
Fig. 2 is sequentially spherical aberration, astigmatism and the distortion curve graph of first embodiment from left to right；
Fig. 3 is painted a kind of schematic diagram of image-taking device according to second embodiment of the invention；
Fig. 4 is sequentially spherical aberration, astigmatism and the distortion curve graph of second embodiment from left to right；
Fig. 5 is painted a kind of schematic diagram of image-taking device according to third embodiment of the invention；
Fig. 6 is sequentially spherical aberration, astigmatism and the distortion curve graph of 3rd embodiment from left to right；
Fig. 7 is painted a kind of schematic diagram of image-taking device according to fourth embodiment of the invention；
Fig. 8 is sequentially spherical aberration, astigmatism and the distortion curve graph of fourth embodiment from left to right；
Fig. 9 is painted a kind of schematic diagram of image-taking device according to fifth embodiment of the invention；
Figure 10 is sequentially spherical aberration, astigmatism and the distortion curve graph of the 5th embodiment from left to right；
Figure 11 is painted a kind of schematic diagram of image-taking device according to sixth embodiment of the invention；
Figure 12 is sequentially spherical aberration, astigmatism and the distortion curve graph of sixth embodiment from left to right；
Figure 13 is painted a kind of schematic diagram of image-taking device according to seventh embodiment of the invention；
Figure 14 is sequentially spherical aberration, astigmatism and the distortion curve graph of the 7th embodiment from left to right；
Figure 15 is painted a kind of schematic diagram of image-taking device according to eighth embodiment of the invention；
Figure 16 is sequentially spherical aberration, astigmatism and the distortion curve graph of the 8th embodiment from left to right；
Figure 17 is painted a kind of schematic diagram of image-taking device according to ninth embodiment of the invention；
Figure 18 is sequentially spherical aberration, astigmatism and the distortion curve graph of the 9th embodiment from left to right；
Figure 19 is painted a kind of schematic diagram of image-taking device according to tenth embodiment of the invention；
Figure 20 is sequentially spherical aberration, astigmatism and the distortion curve graph of the tenth embodiment from left to right；
Figure 21 is painted a kind of schematic diagram of electronic device according to eleventh embodiment of the invention；
Figure 22 is painted a kind of schematic diagram of electronic device according to twelveth embodiment of the invention；And
Figure 23 is painted a kind of schematic diagram of electronic device according to thriteenth embodiment of the invention.
【Symbol description】
Electronic device：10、20、30
Image-taking device：11、21、31
Aperture：100、200、300、400、500、600、700、800、900、1000
First lens：110、210、310、410、510、610、710、810、910、1010
Object side surface：111、211、311、411、511、611、711、811、911、1011
Image side surface：112、212、312、412、512、612、712、812、912、1012
Second lens：120、220、320、420、520、620、720、820、920、1020
Object side surface：121、221、321、421、521、621、721、821、921、1021
Image side surface：122、222、322、422、522、622、722、822、922、1022
The third lens：130、230、330、430、530、630、730、830、930、1030
Object side surface：131、231、331、431、531、631、731、831、931、1031
Image side surface：132、232、332、432、532、632、732、832、932、1032
4th lens：140、240、340、440、540、640、740、840、940、1040
Object side surface：141、241、341、441、541、641、741、841、941、1041
Image side surface：142、242、342、442、542、642、742、842、942、1042
5th lens：150、250、350、450、550、650、750、850、950、1050
Object side surface：151、251、351、451、551、651、751、851、951、1051
Image side surface：152、252、352、452、552、652、752、852、952、1052
Infrared ray filters out filter element：160、260、360、460、560、660、760、860、960、 1060
Imaging surface：170、270、370、470、570、670、770、870、970、1070
Electronics photosensitive element：180、280、380、480、580、680、780、880、980、1080
f：The focal length of imaging system
Fno：The f-number of imaging system
HFOV：The half at the maximum visual angle of imaging system
V2：The abbe number of second lens
V3：The abbe number of the third lens
V4：The abbe number of 4th lens
CT1：First lens are in the thickness on optical axis
CT2：Second lens are in the thickness on optical axis
CT3：The third lens are in the thickness on optical axis
CT4：4th lens are in the thickness on optical axis
CT5：5th lens are in the thickness on optical axis
T12：First lens and the second lens are in the spacing distance on optical axis
T23：Second lens are with the third lens in the spacing distance on optical axis
T34：The third lens are with the 4th lens in the spacing distance on optical axis
T45：4th lens and the 5th lens are in the spacing distance on optical axis
ΣAT：Each two adjacent lens in first lens, the second lens, the third lens, the 4th lens and the 5th lens
In the summation of spacing distance on optical axis
TL：First lens object side surface is to imaging surface in the distance on optical axis
R5：The radius of curvature of the third lens object side surface
R6：The radius of curvature on the third lens image side surface
R7：The radius of curvature of 4th lens object side surface
R8：The radius of curvature of 4th lens image side surface
R9：The radius of curvature of 5th lens object side surface
R10：The radius of curvature of 5th lens image side surface
f1：The focal length of first lens
f2：The focal length of second lens
f3：The focal length of the third lens
f4：The focal length of 4th lens
f5：The focal length of 5th lens
Specific implementation mode
A kind of imaging system is provided according to the present invention, includes sequentially the first lens, the second lens, third by object side to image side
Lens, the 4th lens and the 5th lens, it is five to have refracting power lens wherein in imaging system.
In first lens of imaging system described in leading portion, the second lens, the third lens, the 4th lens and the 5th lens,
With a air gap between the wantonly two adjacent lens with refracting power；That is, imaging system is single non-adhering with five
Lens.Since the more non-adhering lens of the processing procedure of cemented lens are complicated, high accuracy especially need to be possessed in the adhesive surface of two lens
Curved surface, to reach the high adaptation when bonding of two lens, and during bonding, it is also possible to cause adaptation because of deviation
It is bad, influence whole optical imagery quality.Therefore, in imaging system of the present invention, have between the wantonly two adjacent lens with refracting power
The problem that having a air gap, cemented lens can be effectively improved.
It is convex surface that first lens, which have positive refracting power, the paraxial place in object side surface, and the paraxial place in image side surface can be concave surface.
Whereby, the positive refracting power intensity that can suitably adjust the first lens contributes to the total length for shortening imaging system.
It is concave surface that second lens, which have negative refracting power, the paraxial place in image side surface,.Whereby, imaging system can effectively be corrected
Aberration.
The third lens can have positive refracting power.Whereby, the susceptibility of imaging system can be reduced.
The 4th paraxial place in lens object side surface can be convex surface, and the paraxial place in image side surface is concave surface and off-axis place includes at least
One convex surface.Whereby, favorably averagely the 4th lens are in paraxial place to the thickness located off axis, and to improve, lens thickness variation is excessive to bring
It is molded bad problem.
The 5th paraxial place in lens object side surface is convex surface, and the paraxial place in image side surface is concave surface and off-axis place includes at least one
Convex surface.Whereby, favorably averagely the 5th lens are in paraxial place to the thickness located off axis, and to improve, lens thickness variation is excessive to bring into
The bad problem of type.
4th lens are CT4 in the thickness on optical axis, and the third lens are in the spacing distance on optical axis with the 4th lens
T34 meets following condition：CT4/T34<1.20.Whereby, the configuration for being conducive to the third lens and the 4th lens, to reduce group
The possibility collided between eyeglass when dress.Preferably, following condition can be met： CT4/T34<1.0.
4th lens are CT4 in the thickness on optical axis, and the 4th lens are in the spacing distance on optical axis with the 5th lens
T45 meets following condition：CT4/T45<1.60.Whereby, the configuration for being conducive to the 4th lens and the 5th lens, to reduce group
The possibility collided between eyeglass when dress.Preferably, following condition can be met： CT4/T45<1.48.More preferably, can meet following
Condition：CT4/T45<1.25.
The focal length of imaging system is f, and the radius of curvature of the third lens object side surface is R5, the song on the third lens image side surface
Rate radius is R6, meets following condition：|f/R5|+|f/R6|<1.10.Whereby, it can be ensured that the third lens in paraxial place have compared with
Small refracting power, to solve the problems, such as image center over-correction.Preferably, following condition can be met：|f/R5|+|f/R6|<
0.75。
The abbe number of second lens is V2, and the abbe number of the third lens is V3, and the abbe number of the 4th lens is V4,
It meets following condition：1.75<(V2+V4)/V3.Whereby, contribute to obtain balance between achromatism and higher order aberratons.
The abbe number of the third lens is V3, meets following condition：V3<30.Whereby, contribute to imaging system aberration
It corrects.
The radius of curvature of 4th lens object side surface is R7, and the focal length of imaging system is f, meets following condition：|R7/f
|<3.0.Whereby, the aberration of imaging system can be corrected and promote image quality.Preferably, following condition can be met：|R7/f|<
2.3。
The f-number of imaging system is Fno, meets following condition：1.6<Fno<2.4.Whereby, big light can effectively be played
The advantage of circle, still can clear capture when light is inadequate.
First lens object side surface is TL in the distance on optical axis to imaging surface, meets following condition：TL <6mm.It borrows
This, can shorten the total length of imaging system, help its miniaturization.
The half at the maximum visual angle of imaging system is HFOV, meets following condition：35 degree<HFOV.Whereby, it can get suitable
When field angle and larger image capturing range.
The focal length of imaging system is f, and the focal length of the third lens is f3, and the focal length of the 4th lens is f4, the coke of the 5th lens
Away from for f5, meet following condition：|f/f3|+|f/f4|+|f/f5|<0.60.Whereby, can avoid eyeglass refracting power it is too strong so that
Susceptibility is excessively high, so that light angle variation is too greatly and the problems such as cause face to reflect.
The focal length of first lens is f1, and the focal length of the second lens is f2, and the focal length of the third lens is f3, the coke of the 4th lens
Away from for f4, the focal length of the 5th lens is f5, meets following condition：|f3|>|f1|；|f3|> |f2|；|f3|>|f4|；And |
f3|>|f5|.Whereby, can Effective Regulation imaging system refracting power, so that the configuration of imaging system refracting power is reached balanced, with drop
Its low susceptibility.
The radius of curvature of 4th lens object side surface is R7, and the radius of curvature on the 4th lens image side surface is R8, and the 5th thoroughly
The radius of curvature of mirror object side surface is R9, and the radius of curvature on the 5th lens image side surface is R10, and the focal length of imaging system is f,
Meet following condition：(|R7|+|R8|+|R9|+|R10|)/f<3.5.It whereby, can appropriately configured 4th lens and the 5th lens
Shape, helping, which improves lens, is molded bad problem.
First lens and the second lens are T12 in the spacing distance on optical axis, and the second lens are with the third lens on optical axis
Spacing distance be T23, the third lens and the 4th lens are T34, the 4th lens and the 5th lens in the spacing distance on optical axis
In the spacing distance on optical axis be T45, each two-phase in the first lens, the second lens, the third lens, the 4th lens and the 5th lens
Adjacent lens are Σ AT (Σ AT=T12+T23+T34+T45) in the summation of spacing distance on optical axis, meet following condition：
0.60<(T34+T45)/ΣAT< 0.80.Whereby, the group for being conducive to lens is filled with raising making qualification rate.
The abbe number of second lens is V2, and the abbe number of the third lens is V3, and the abbe number of the 4th lens is V4,
It meets following condition：V2+V3+V4<90.Whereby, contribute to the amendment of imaging system aberration.
First lens are CT1 in the thickness on optical axis, and the second lens are CT2 in the thickness on optical axis, and the third lens are in light
Thickness on axis is CT3, and the 4th lens are CT4 in the thickness on optical axis, and the 5th lens are CT5 in the thickness on optical axis, wherein
The maximum is CT5 in CT1, CT2, CT3, CT4 and CT5.Whereby, the mouldability and homogenieity for contributing to lens, to promote manufacture
Qualification rate.
Second lens are CT2 in the thickness on optical axis, and the third lens are CT3 in the thickness on optical axis, and the 4th lens are in light
Thickness on axis is CT4, and the 5th lens are CT5 in the thickness on optical axis, meet following condition：(CT2+CT3+CT4)/CT5<
1.25.Whereby, contribute to the mouldability and homogenieity of lens.
The radius of curvature of 4th lens image side surface is R8, and the radius of curvature of the 5th lens object side surface is R9, is met
Following condition：1.20<R8/R9.Whereby, aberration can effectively be corrected.
In imaging system provided by the invention, the material of lens can be plastic cement or glass.When lens material be plastic cement, can
Effectively to reduce production cost.The another material for working as lens is glass, then can increase the degree of freedom of imaging system refracting power configuration.
In addition, the object side surface and image side surface in imaging system can be aspherical (ASP), it is aspherical to be easy to be fabricated to spherical surface
Shape in addition obtains more controlled variable, to cut down aberration, and then reduces the number that lens use, therefore can have
Effect reduces the total length of imaging system of the present invention.
Furthermore in imaging system provided by the invention, if lens surface is convex surface and does not define the convex surface position, table
Show the lens surface in paraxial place be convex surface；If lens surface is concave surface and does not define the concave surface position, then it represents that the lens
Surface is concave surface in paraxial place.In imaging system provided by the invention, if lens have positive refracting power or negative refracting power, or thoroughly
The focal length of mirror all refers to the refracting power or focal length at the paraxial place of lens.
The present invention imaging system in, imaging surface (Image Surface) according to its corresponding electronics photosensitive element difference,
It can be a flat surface or be had the curved surface of any curvature, particularly relate to concave surface towards the curved surface toward object side direction.
Can also include an aperture in the imaging system of the present invention, aperture configuration can for preposition aperture or in set aperture, wherein
Preposition aperture implies that aperture is set between object and the first lens, in set aperture then indicate aperture be set to the first lens at
Between image planes.If aperture is preposition aperture, can make the outgoing pupil (Exit Pupil) of imaging system and imaging surface generate it is longer away from
From the CCD or CMOS for making it have telecentricity (Telecentric) effect, and can increasing electronics photosensitive element receive the effect of image
Rate；Aperture is set if in, contributes to the field angle of expansion system, makes imaging system that there is the advantage of wide-angle lens.
In addition, in imaging system of the present invention, an at least diaphragm can be set on demand, to reduce stray light, help to be promoted
Image quality.
The more visual demand of imaging system of the present invention is applied in the optical system of mobile focusing, and has both excellent aberration and repair
Just with the characteristic of good image quality.Also it many-sided can be applied to 3D (three-dimensional) image capture, digital camera, mobile device, put down
Plate computer, smart television, network monitoring device, somatic sensation television game machine, automobile data recorder, reversing developing apparatus are set with wearable
It is standby to wait in electronic devices.
The present invention separately provides a kind of image-taking device, including imaging system above-mentioned and electronics photosensitive element, wherein electronics
Photosensitive element is set to the imaging surface of imaging system.In imaging system, by average 4th lens and the 5th lens in paraxial place
To the thickness located off axis, change the excessive problem for bringing molding bad to improve lens thickness, and be conducive to the third lens, the 4th
The configuration of lens and the 5th lens, and reduce the possibility collided between eyeglass when assembling.Furthermore the present invention can solve image center
The problem of over-correction, and help to obtain balance between achromatism and higher order aberratons.Preferably, image-taking device can be further
Including lens barrel (Barrel Member), support device (Holder Member) or combinations thereof.
The present invention provides a kind of electronic device, including image-taking device above-mentioned.Whereby, it is playing molding and is assembling advantage
Meanwhile there is refracting power appropriate, to take into account the periphery relative illumination demand of short overall length imaging system simultaneously.Preferably, electronics
Device can further include control unit (Control Unit), display unit (Display), storage element (Storage
Unit), random access memory (RAM) or combinations thereof.
According to the above embodiment, specific embodiment set forth below simultaneously coordinates attached drawing to be described in detail.
<First embodiment>
Fig. 1 and Fig. 2 is please referred to, wherein Fig. 1 is painted a kind of schematic diagram of image-taking device according to first embodiment of the invention,
Fig. 2 is sequentially spherical aberration, astigmatism and the distortion curve graph of first embodiment from left to right.As shown in Figure 1, first embodiment takes
As device includes imaging system (not another label) and electronics photosensitive element 180.Imaging system includes sequentially by object side to image side
Aperture 100, the first lens 110, the second lens 120, the third lens 130, the 4th lens 140, the 5th lens 150, infrared ray filter
Except filter element 160 and imaging surface 170, and electronics photosensitive element 180 is set to the imaging surface 170 of imaging system, wherein at
As having the lens of refracting power for five (110-150) in system, with an air between the wantonly two adjacent lens with refracting power
Gap.
First lens 110 have positive refracting power, and are plastic cement material, and 111 paraxial place of object side surface is convex surface, image side
112 paraxial place of surface is concave surface, and is all aspherical.
Second lens 120 have negative refracting power, and are plastic cement material, and 121 paraxial place of object side surface is convex surface, image side
122 paraxial place of surface is concave surface, and is all aspherical.
The third lens 130 have negative refracting power, and are plastic cement material, and 131 paraxial place of object side surface is concave surface, image side
132 paraxial place of surface is convex surface, and is all aspherical.
4th lens 140 have positive refracting power, and are plastic cement material, and 141 paraxial place of object side surface is convex surface, image side
142 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 4th lens image side surface 142
Face.
5th lens 150 have negative refracting power, and are plastic cement material, and 151 paraxial place of object side surface is convex surface, image side
152 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 5th lens image side surface 152
Face.
It is glass material that infrared ray, which filters out filter element 160, is set between the 5th lens 150 and imaging surface 170 and not
Influence the focal length of imaging system.
The aspherical fitting equation of above-mentioned each lens indicates as follows：
Wherein：
X：Apart from the point that optical axis is Y on aspherical, with the relative distance for being tangential on intersection point section on aspherical optical axis；
Y：The vertical range of point and optical axis in aspheric curve；
R：Radius of curvature；
k：Conical surface coefficient；And
Ai：I-th rank asphericity coefficient.
In the imaging system of first embodiment, the focal length of imaging system is f, the f-number (f-number) of imaging system
For Fno, the half at maximum visual angle is HFOV in imaging system, and numerical value is as follows：F=4.26 mm；Fno=2.12；And HFOV
=36.7 degree.
In the imaging system of first embodiment, the abbe number of the second lens 120 is V2, the dispersion system of the third lens 130
Number is V3, and the abbe number of the 4th lens 140 is V4, meets following condition：V2+V3+V4=77.2；(V2+V4)/V3=
2.02；And V3=25.6.
In the imaging system of first embodiment, the second lens 120 are CT2 in the thickness on optical axis, and the third lens 130 are in light
Thickness on axis is CT3, and the 4th lens 140 are CT4 in the thickness on optical axis, and the 5th lens 150 are in the thickness on optical axis
CT5 meets following condition：(CT2+CT3+CT4)/CT5=1.19.
In the imaging system of first embodiment, the first lens 110 are in the spacing distance on optical axis with the second lens 120
T12, the second lens 120 and the third lens 130 are T23, the third lens 130 and the 4th lens 140 in the spacing distance on optical axis
In the spacing distance on optical axis be T34, the 4th lens 140 and the 5th lens 150 in the spacing distance on optical axis be T45, first
Each two adjacent lens are in light in lens 110, the second lens 120, the third lens 130, the 4th lens 140 and the 5th lens 150
The summation of spacing distance is Σ AT (Σ AT=T12+T23+T34+T45) on axis, meets following condition：(T34+T45)/ΣAT
=0.67.
In the imaging system of first embodiment, the 4th lens 140 are CT4, the third lens 130 and the in the thickness on optical axis
Four lens 140 are T34 in the spacing distance on optical axis, meet following condition：CT4/T34=0.75.
In the imaging system of first embodiment, the 4th lens 140 are CT4, the 4th lens 140 and the in the thickness on optical axis
Five lens 150 are T45 in the spacing distance on optical axis, meet following condition：CT4/T45=0.85.
In the imaging system of first embodiment, the first lens object side surface 111 is in the distance on optical axis to imaging surface 170
TL meets following condition：TL=4.79mm.
In the imaging system of first embodiment, the focal length of imaging system is f, the curvature half of the third lens object side surface 131
Diameter is R5, and the radius of curvature on the third lens image side surface 132 is R6, meets following condition：| f/R5 |+| f/R6 |=0.30.
In the imaging system of first embodiment, the radius of curvature of the 4th lens object side surface 141 is R7, the coke of imaging system
Away from for f, meet following condition：| R7/f |=0.87.
In the imaging system of first embodiment, the radius of curvature of the 4th lens object side surface 141 is R7, the 4th lens image side
The radius of curvature on surface 142 is R8, and the radius of curvature of the 5th lens object side surface 151 is R9, the 5th lens image side surface 152
Radius of curvature be R10, the focal length of imaging system is f, meets following condition：(| R7 |+| R8 |+| R9 |+| R10 |)/f=
2.81。
In the imaging system of first embodiment, the radius of curvature on the 4th lens image side surface 142 is R8, the 5th lens object side
The radius of curvature on surface 151 is R9, meets following condition：R8/R9=1.39
In the imaging system of first embodiment, the focal length of imaging system is f, and the focal lengths of the third lens 130 is f3, the 4th
The focal length of lens 140 is f4, and the focal length of the 5th lens 150 is f5, meets following condition： |f/f3|+|f/f4|+|f/f5|
=0.37.
In addition, in the imaging system of first embodiment, the first lens 110 are CT1, the second lens in the thickness on optical axis
120 in the thickness on optical axis be CT2, the third lens 130 in the thickness on optical axis be CT3, the 4th lens 140 are in the thickness on optical axis
Degree is CT4, and the 5th lens 150 are CT5 in the thickness on optical axis, and the maximum is CT5 wherein in CT1, CT2, CT3, CT4 and CT5.
Coordinate again with reference to following table one and table two.
Table one is the detailed structured data of Fig. 1 first embodiments, and wherein the unit of radius of curvature, thickness and focal length is mm,
And surface 0-14 is sequentially indicated by the surface of object side to image side.Table two is the aspherical surface data in first embodiment, wherein k tables
Conical surface coefficient in aspheric curve equation, A4-A16 then indicate each surface 4-16 rank asphericity coefficients.In addition, following
Embodiment table is schematic diagram and the aberration curve figure of corresponding each embodiment, in table the definition of data all with first embodiment
The definition of table one and table two is identical, is not added with repeats herein.
<Second embodiment>
Fig. 3 and Fig. 4 is please referred to, wherein Fig. 3 is painted a kind of schematic diagram of image-taking device according to second embodiment of the invention,
Fig. 4 is sequentially spherical aberration, astigmatism and the distortion curve graph of second embodiment from left to right.From the figure 3, it may be seen that second embodiment takes
As device includes imaging system (not another label) and electronics photosensitive element 280.Imaging system includes sequentially by object side to image side
Aperture 200, the first lens 210, the second lens 220, the third lens 230, the 4th lens 240, the 5th lens 250, infrared ray filter
Except filter element 260 and imaging surface 270, and electronics photosensitive element 280 is set to the imaging surface 270 of imaging system, wherein at
As having the lens of refracting power for five (210-250) in system, with an air between the wantonly two adjacent lens with refracting power
Gap.
First lens 210 have positive refracting power, and are plastic cement material, and 211 paraxial place of object side surface is convex surface, image side
212 paraxial place of surface is concave surface, and is all aspherical.
Second lens 220 have negative refracting power, and are plastic cement material, and 221 paraxial place of object side surface is convex surface, image side
222 paraxial place of surface is concave surface, and is all aspherical.
The third lens 230 have negative refracting power, and are plastic cement material, and 231 paraxial place of object side surface is concave surface, image side
232 paraxial place of surface is concave surface, and is all aspherical.
4th lens 240 have positive refracting power, and are plastic cement material, and 241 paraxial place of object side surface is convex surface, image side
242 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 4th lens image side surface 242
Face.
5th lens 250 have negative refracting power, and are plastic cement material, and 251 paraxial place of object side surface is convex surface, image side
252 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 5th lens image side surface 252
Face.
It is glass material that infrared ray, which filters out filter element 260, is set between the 5th lens 250 and imaging surface 270 and not
Influence the focal length of imaging system.
In addition, in the imaging system of second embodiment, the first lens 210 are CT1, the second lens in the thickness on optical axis
220 in the thickness on optical axis be CT2, the third lens 230 in the thickness on optical axis be CT3, the 4th lens 240 are in the thickness on optical axis
Degree is CT4, and the 5th lens 250 are CT5 in the thickness on optical axis, and the maximum is CT5 wherein in CT1, CT2, CT3, CT4 and CT5.
Coordinate again with reference to following table three and table four.
In second embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, following table parameter
Definition is all identical with the first embodiment, and not in this to go forth.
Cooperation table three and table four can extrapolate following data：
<3rd embodiment>
Fig. 5 and Fig. 6 is please referred to, wherein Fig. 5 is painted a kind of schematic diagram of image-taking device according to third embodiment of the invention,
Fig. 6 is sequentially spherical aberration, astigmatism and the distortion curve graph of 3rd embodiment from left to right.As shown in Figure 5,3rd embodiment takes
As device includes imaging system (not another label) and electronics photosensitive element 380.Imaging system includes sequentially by object side to image side
Aperture 300, the first lens 310, the second lens 320, the third lens 330, the 4th lens 340, the 5th lens 350, infrared ray filter
Except filter element 360 and imaging surface 370, and electronics photosensitive element 380 is set to the imaging surface 370 of imaging system, wherein at
As having the lens of refracting power for five (310-350) in system, with an air between the wantonly two adjacent lens with refracting power
Gap.
First lens 310 have positive refracting power, and are plastic cement material, and 311 paraxial place of object side surface is convex surface, image side
312 paraxial place of surface is convex surface, and is all aspherical.
Second lens 320 have negative refracting power, and are plastic cement material, and 321 paraxial place of object side surface is convex surface, image side
322 paraxial place of surface is concave surface, and is all aspherical.
The third lens 330 have positive refracting power, and are plastic cement material, and 331 paraxial place of object side surface is convex surface, image side
332 paraxial place of surface is convex surface, and is all aspherical.
4th lens 340 have positive refracting power, and are plastic cement material, and 341 paraxial place of object side surface is convex surface, image side
342 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 4th lens image side surface 342
Face.
5th lens 350 have negative refracting power, and are plastic cement material, and 351 paraxial place of object side surface is convex surface, image side
352 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 5th lens image side surface 352
Face.
It is glass material that infrared ray, which filters out filter element 360, is set between the 5th lens 350 and imaging surface 370 and not
Influence the focal length of imaging system.
In addition, in the imaging system of 3rd embodiment, the focal length of the first lens 310 is f1, and the focal length of the second lens 320 is
The focal length of f2, the third lens 330 are f3, and the focal length of the 4th lens 340 is f4, and the focal length of the 5th lens 350 is f5, under meeting
Row condition：|f3|>|f1|；|f3|>|f2|；|f3|>|f4|；And | f3 |>|f5|.
Coordinate again with reference to following table five and table six.
In 3rd embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, following table parameter
Definition is all identical with the first embodiment, and not in this to go forth.
Cooperation table five and table six can extrapolate following data：
<Fourth embodiment>
Fig. 7 and Fig. 8 is please referred to, wherein Fig. 7 is painted a kind of schematic diagram of image-taking device according to fourth embodiment of the invention,
Fig. 8 is sequentially spherical aberration, astigmatism and the distortion curve graph of fourth embodiment from left to right.As shown in Figure 7, fourth embodiment takes
As device includes imaging system (not another label) and electronics photosensitive element 480.Imaging system includes sequentially by object side to image side
Aperture 400, the first lens 410, the second lens 420, the third lens 430, the 4th lens 440, the 5th lens 450, infrared ray filter
Except filter element 460 and imaging surface 470, and electronics photosensitive element 480 is set to the imaging surface 470 of imaging system, wherein at
As having the lens of refracting power for five (410-450) in system, with an air between the wantonly two adjacent lens with refracting power
Gap.
First lens 410 have positive refracting power, and are plastic cement material, and 411 paraxial place of object side surface is convex surface, image side
412 paraxial place of surface is concave surface, and is all aspherical.
Second lens 420 have negative refracting power, and are plastic cement material, and 421 paraxial place of object side surface is convex surface, image side
422 paraxial place of surface is concave surface, and is all aspherical.
The third lens 430 have positive refracting power, and are plastic cement material, and 431 paraxial place of object side surface is concave surface, image side
432 paraxial place of surface is convex surface, and is all aspherical.
4th lens 440 have negative refracting power, and are plastic cement material, and 441 paraxial place of object side surface is convex surface, image side
442 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 4th lens image side surface 442
Face.
5th lens 450 have negative refracting power, and are plastic cement material, and 451 paraxial place of object side surface is convex surface, image side
452 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 5th lens image side surface 452
Face.
It is glass material that infrared ray, which filters out filter element 460, is set between the 5th lens 450 and imaging surface 470 and not
Influence the focal length of imaging system.
In addition, in the imaging system of fourth embodiment, the focal length of the first lens 410 is f1, the focal length of the second lens 420
Focal length for f2, the third lens 430 is f3, and the focal length of the 4th lens 440 is f4, and the focal length of the 5th lens 450 is f5, is met
Following condition：|f3|>|f1|；|f3|>|f2|；|f3|>|f4|；And | f3 |>|f5|.
In the imaging system of fourth embodiment, the first lens 410 are CT1 in the thickness on optical axis, and the second lens 420 are in light
Thickness on axis is CT2, and the third lens 430 are CT3 in the thickness on optical axis, and the 4th lens 440 are in the thickness on optical axis
CT4, the 5th lens 450 are CT5 in the thickness on optical axis, and the maximum is CT5 wherein in CT1, CT2, CT3, CT4 and CT5.
Coordinate again with reference to following table seven and table eight.
In fourth embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, following table parameter
Definition is all identical with the first embodiment, and not in this to go forth.
Cooperation table seven and table eight can extrapolate following data：
<5th embodiment>
Fig. 9 and Figure 10 is please referred to, wherein Fig. 9 is painted a kind of signal of image-taking device according to fifth embodiment of the invention
Figure, Figure 10 are sequentially spherical aberration, astigmatism and the distortion curve graph of the 5th embodiment from left to right.As shown in Figure 9, the 5th embodiment
Image-taking device includes imaging system (not another label) and electronics photosensitive element 580.Imaging system is sequentially wrapped by object side to image side
Containing aperture 500, the first lens 510, the second lens 520, the third lens 530, the 4th lens 540, the 5th lens 550, infrared ray
Filter element 560 and imaging surface 570 are filtered out, and electronics photosensitive element 580 is set to the imaging surface 570 of imaging system, wherein
The lens with refracting power are five (510-550) in imaging system, are had between the wantonly two adjacent lens with refracting power
Gas gap.
First lens 510 have positive refracting power, and are plastic cement material, and 511 paraxial place of object side surface is convex surface, image side
512 paraxial place of surface is concave surface, and is all aspherical.
Second lens 520 have negative refracting power, and are plastic cement material, and 521 paraxial place of object side surface is convex surface, image side
522 paraxial place of surface is concave surface, and is all aspherical.
The third lens 530 have negative refracting power, and are plastic cement material, and 531 paraxial place of object side surface is concave surface, image side
532 paraxial place of surface is convex surface, and is all aspherical.
4th lens 540 have negative refracting power, and are plastic cement material, and 541 paraxial place of object side surface is convex surface, image side
542 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 4th lens image side surface 542
Face.
5th lens 550 have negative refracting power, and are plastic cement material, and 551 paraxial place of object side surface is convex surface, image side
552 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 5th lens image side surface 552
Face.
It is glass material that infrared ray, which filters out filter element 560, is set between the 5th lens 550 and imaging surface 570 and not
Influence the focal length of imaging system.
In addition, in the imaging system of the 5th embodiment, the focal length of the first lens 510 is f1, the focal length of the second lens 520
Focal length for f2, the third lens 530 is f3, and the focal length of the 4th lens 540 is f4, and the focal length of the 5th lens 550 is f5, is met
Following condition：|f3|>|f1|；|f3|>|f2|；|f3|>|f4|；And | f3 |>|f5|.
In the imaging system of 5th embodiment, the first lens 510 are CT1 in the thickness on optical axis, and the second lens 520 are in light
Thickness on axis is CT2, and the third lens 530 are CT3 in the thickness on optical axis, and the 4th lens 540 are in the thickness on optical axis
CT4, the 5th lens 550 are CT5 in the thickness on optical axis, and the maximum is CT5 wherein in CT1, CT2, CT3, CT4 and CT5.
Coordinate again with reference to following table nine and table ten.
In 5th embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, following table parameter
Definition is all identical with the first embodiment, and not in this to go forth.
Cooperation table nine and table ten can extrapolate following data：
<Sixth embodiment>
Figure 11 and Figure 12 is please referred to, wherein Figure 11 is painted a kind of signal of image-taking device according to sixth embodiment of the invention
Figure, Figure 12 are sequentially spherical aberration, astigmatism and the distortion curve graph of sixth embodiment from left to right.As shown in Figure 11, sixth embodiment
Image-taking device include imaging system (not another label) and electronics photosensitive element 680.Imaging system by object side to image side sequentially
Including aperture 600, the first lens 610, the second lens 620, the third lens 630, the 4th lens 640, the 5th lens 650, infrared
Line filters out filter element 660 and imaging surface 670, and electronics photosensitive element 680 is set to the imaging surface 670 of imaging system,
Have the lens of refracting power for five (610-650) in middle imaging system, with one between the wantonly two adjacent lens with refracting power
The air gap.
First lens 610 have positive refracting power, and are plastic cement material, and 611 paraxial place of object side surface is convex surface, image side
612 paraxial place of surface is concave surface, and is all aspherical.
Second lens 620 have negative refracting power, and are plastic cement material, and 621 paraxial place of object side surface is concave surface, image side
622 paraxial place of surface is concave surface, and is all aspherical.
The third lens 630 have negative refracting power, and are plastic cement material, and 631 paraxial place of object side surface is concave surface, image side
632 paraxial place of surface is convex surface, and is all aspherical.
4th lens 640 have negative refracting power, and are plastic cement material, and 641 paraxial place of object side surface is convex surface, image side
642 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 4th lens image side surface 642
Face.
5th lens 650 have positive refracting power, and are plastic cement material, and 651 paraxial place of object side surface is convex surface, image side
652 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 5th lens image side surface 652
Face.
It is glass material that infrared ray, which filters out filter element 660, is set between the 5th lens 650 and imaging surface 670 and not
Influence the focal length of imaging system.
In addition, in the imaging system of sixth embodiment, the focal length of the first lens 610 is f1, the focal length of the second lens 620
Focal length for f2, the third lens 630 is f3, and the focal length of the 4th lens 640 is f4, and the focal length of the 5th lens 650 is f5, is met
Following condition：|f3|>|f1|；|f3|>|f2|；|f3|>|f4|；And | f3 |>|f5|.
In the imaging system of sixth embodiment, the first lens 610 are CT1 in the thickness on optical axis, and the second lens 620 are in light
Thickness on axis is CT2, and the third lens 630 are CT3 in the thickness on optical axis, and the 4th lens 640 are in the thickness on optical axis
CT4, the 5th lens 650 are CT5 in the thickness on optical axis, and the maximum is CT5 wherein in CT1, CT2, CT3, CT4 and CT5.
Coordinate again with reference to following table 11 and table 12.
In sixth embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, following table parameter
Definition is all identical with the first embodiment, and not in this to go forth.
Cooperation table 11 and table 12 can extrapolate following data：
<7th embodiment>
Figure 13 and Figure 14 is please referred to, wherein Figure 13 is painted a kind of signal of image-taking device according to seventh embodiment of the invention
Figure, Figure 14 are sequentially spherical aberration, astigmatism and the distortion curve graph of the 7th embodiment from left to right.As shown in Figure 13, the 7th embodiment
Image-taking device include imaging system (not another label) and electronics photosensitive element 780.Imaging system by object side to image side sequentially
Including the first lens 710, aperture 700, the second lens 720, the third lens 730, the 4th lens 740, the 5th lens 750, infrared
Line filters out filter element 760 and imaging surface 770, and electronics photosensitive element 780 is set to the imaging surface 770 of imaging system,
Have the lens of refracting power for five (710-750) in middle imaging system, with one between the wantonly two adjacent lens with refracting power
The air gap.
First lens 710 have positive refracting power, and are plastic cement material, and 711 paraxial place of object side surface is convex surface, image side
712 paraxial place of surface is convex surface, and is all aspherical.
Second lens 720 have negative refracting power, and are plastic cement material, and 721 paraxial place of object side surface is concave surface, image side
722 paraxial place of surface is concave surface, and is all aspherical.
The third lens 730 have positive refracting power, and are plastic cement material, and 731 paraxial place of object side surface is convex surface, image side
732 paraxial place of surface is convex surface, and is all aspherical.
4th lens 740 have negative refracting power, and are plastic cement material, and 741 paraxial place of object side surface is convex surface, image side
742 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 4th lens image side surface 742
Face.
5th lens 750 have positive refracting power, and are plastic cement material, and 751 paraxial place of object side surface is convex surface, image side
752 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 5th lens image side surface 752
Face.
It is glass material that infrared ray, which filters out filter element 760, is set between the 5th lens 750 and imaging surface 770 and not
Influence the focal length of imaging system.
In addition, in the imaging system of the 7th embodiment, the first lens 710 are CT1, the second lens in the thickness on optical axis
720 in the thickness on optical axis be CT2, the third lens 730 in the thickness on optical axis be CT3, the 4th lens 740 are in the thickness on optical axis
Degree is CT4, and the 5th lens 750 are CT5 in the thickness on optical axis, and the maximum is CT5 wherein in CT1, CT2, CT3, CT4 and CT5.
Coordinate again with reference to following table 13 and table 14.
In 7th embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, following table parameter
Definition is all identical with the first embodiment, and not in this to go forth.
Cooperation table 13 and table 14 can extrapolate following data：
<8th embodiment>
Figure 15 and Figure 16 is please referred to, wherein Figure 15 is painted a kind of signal of image-taking device according to eighth embodiment of the invention
Figure, Figure 16 are sequentially spherical aberration, astigmatism and the distortion curve graph of the 8th embodiment from left to right.As shown in Figure 15, the 8th embodiment
Image-taking device include imaging system (not another label) and electronics photosensitive element 880.Imaging system by object side to image side sequentially
Including the first lens 810, aperture 800, the second lens 820, the third lens 830, the 4th lens 840, the 5th lens 850, infrared
Line filters out filter element 860 and imaging surface 870, and electronics photosensitive element 880 is set to the imaging surface 870 of imaging system,
Have the lens of refracting power for five (810-850) in middle imaging system, with one between the wantonly two adjacent lens with refracting power
The air gap.
First lens 810 have positive refracting power, and are plastic cement material, and 811 paraxial place of object side surface is convex surface, image side
812 paraxial place of surface is concave surface, and is all aspherical.
Second lens 820 have negative refracting power, and are plastic cement material, and 821 paraxial place of object side surface is concave surface, image side
822 paraxial place of surface is concave surface, and is all aspherical.
The third lens 830 have positive refracting power, and are plastic cement material, and 831 paraxial place of object side surface is convex surface, image side
832 paraxial place of surface is convex surface, and is all aspherical.
4th lens 840 have negative refracting power, and are plastic cement material, and 841 paraxial place of object side surface is convex surface, image side
842 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 4th lens image side surface 842
Face.
5th lens 850 have positive refracting power, and are plastic cement material, and 851 paraxial place of object side surface is convex surface, image side
852 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 5th lens image side surface 852
Face.
It is glass material that infrared ray, which filters out filter element 860, is set between the 5th lens 850 and imaging surface 870 and not
Influence the focal length of imaging system.
In addition, in the imaging system of the 8th embodiment, the first lens 810 are CT1, the second lens in the thickness on optical axis
820 in the thickness on optical axis be CT2, the third lens 830 in the thickness on optical axis be CT3, the 4th lens 840 are in the thickness on optical axis
Degree is CT4, and the 5th lens 850 are CT5 in the thickness on optical axis, and the maximum is CT5 wherein in CT1, CT2, CT3, CT4 and CT5.
Coordinate again with reference to following table 15 and table 16.
In 8th embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, following table parameter
Definition is all identical with the first embodiment, and not in this to go forth.
Cooperation table 15 and table 16 can extrapolate following data：
<9th embodiment>
Figure 17 and Figure 18 is please referred to, wherein Figure 17 is painted a kind of signal of image-taking device according to ninth embodiment of the invention
Figure, Figure 18 are sequentially spherical aberration, astigmatism and the distortion curve graph of the 9th embodiment from left to right.As shown in Figure 17, the 9th embodiment
Image-taking device include imaging system (not another label) and electronics photosensitive element 980.Imaging system by object side to image side sequentially
Including aperture 900, the first lens 910, the second lens 920, the third lens 930, the 4th lens 940, the 5th lens 950, infrared
Line filters out filter element 960 and imaging surface 970, and electronics photosensitive element 980 is set to the imaging surface 970 of imaging system,
Have the lens of refracting power for five (910-950) in middle imaging system, with one between the wantonly two adjacent lens with refracting power
The air gap.
First lens 910 have positive refracting power, and are plastic cement material, and 911 paraxial place of object side surface is convex surface, image side
912 paraxial place of surface is concave surface, and is all aspherical.
Second lens 920 have negative refracting power, and are plastic cement material, and 921 paraxial place of object side surface is convex surface, image side
922 paraxial place of surface is concave surface, and is all aspherical.
The third lens 930 have positive refracting power, and are plastic cement material, and 931 paraxial place of object side surface is convex surface, image side
932 paraxial place of surface is concave surface, and is all aspherical.
4th lens 940 have positive refracting power, and are plastic cement material, and 941 paraxial place of object side surface is convex surface, image side
942 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 4th lens image side surface 942
Face.
5th lens 950 have positive refracting power, and are plastic cement material, and 951 paraxial place of object side surface is convex surface, image side
952 paraxial place of surface is concave surface, and is all aspherical.In addition, place is convex comprising at least one off axis on the 5th lens image side surface 952
Face.
It is glass material that infrared ray, which filters out filter element 960, is set between the 5th lens 950 and imaging surface 970 and not
Influence the focal length of imaging system.
In addition, in the imaging system of the 9th embodiment, the focal length of the first lens 910 is f1, the focal length of the second lens 920
Focal length for f2, the third lens 930 is f3, and the focal length of the 4th lens 940 is f4, and the focal length of the 5th lens 950 is f5, is met
Following condition：|f3|>|f1|；|f3|>|f2|；|f3|>|f4|；And | f3 |>|f5|.
In the imaging system of 9th embodiment, the first lens 910 are CT1 in the thickness on optical axis, and the second lens 920 are in light
Thickness on axis is CT2, and the third lens 930 are CT3 in the thickness on optical axis, and the 4th lens 940 are in the thickness on optical axis
CT4, the 5th lens 950 are CT5 in the thickness on optical axis, and the maximum is CT5 wherein in CT1, CT2, CT3, CT4 and CT5.
Coordinate again with reference to following table 17 and table 18.
In 9th embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, following table parameter
Definition is all identical with the first embodiment, and not in this to go forth.
Cooperation table 17 and table 18 can extrapolate following data：
<Tenth embodiment>
Figure 19 and Figure 20 is please referred to, wherein Figure 19 is painted a kind of signal of image-taking device according to tenth embodiment of the invention
Figure, Figure 20 are sequentially spherical aberration, astigmatism and the distortion curve graph of the tenth embodiment from left to right.It appears from figure 19 that the tenth embodiment
Image-taking device include imaging system (not another label) and electronics photosensitive element 1080.Imaging system by object side to image side sequentially
Including aperture 1000, the first lens 1010, the second lens 1020, the third lens 1030, the 4th lens 1040, the 5th lens
1050, infrared ray filters out filter element 1060 and imaging surface 1070, and electronics photosensitive element 1080 is set to imaging system
Imaging surface 1070, the lens with refracting power are five (1010-1050) wherein in imaging system, and wantonly two is adjacent with flexion
There is a air gap between the lens of power.
First lens 1010 have positive refracting power, and are plastic cement material, and 1011 paraxial place of object side surface is convex surface, picture
1012 paraxial place of side surface is concave surface, and is all aspherical.
Second lens 1020 have negative refracting power, and are plastic cement material, and 1021 paraxial place of object side surface is convex surface, picture
1022 paraxial place of side surface is concave surface, and is all aspherical.
The third lens 1030 have positive refracting power, and are plastic cement material, and 1031 paraxial place of object side surface is convex surface, picture
1032 paraxial place of side surface is convex surface, and is all aspherical.
4th lens 1040 have negative refracting power, and are plastic cement material, and 1041 paraxial place of object side surface is convex surface, picture
1042 paraxial place of side surface is concave surface, and is all aspherical.In addition, place includes at least one off axis on the 4th lens image side surface 1042
Convex surface.
5th lens 1050 have negative refracting power, and are plastic cement material, and 1051 paraxial place of object side surface is convex surface, picture
1052 paraxial place of side surface is concave surface, and is all aspherical.In addition, place includes at least one off axis on the 5th lens image side surface 1052
Convex surface.
It is glass material that infrared ray, which filters out filter element 1060, is set between the 5th lens 1050 and imaging surface 1070
And do not influence the focal length of imaging system.
In addition, in the imaging system of the tenth embodiment, the first lens 1010 are CT1, the second lens in the thickness on optical axis
1020 in the thickness on optical axis be CT2, the third lens 1030 in the thickness on optical axis be CT3, the 4th lens 1040 are on optical axis
Thickness be CT4, the 5th lens 1050 are CT5, wherein the maximum in CT1, CT2, CT3, CT4 and CT5 in the thickness on optical axis
For CT5.
Coordinate again with reference to following table 19 and table 20.
In tenth embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, following table parameter
Definition is all identical with the first embodiment, and not in this to go forth.
Cooperation table 19 and table 20 can extrapolate following data：
<11st embodiment>
Figure 21 is please referred to, is the schematic diagram for being painted a kind of electronic device 10 according to eleventh embodiment of the invention.Tenth
The electronic device 10 of one embodiment is a smart mobile phone, and electronic device 10 includes image-taking device 11, and image-taking device 11 includes foundation
The imaging system (figure does not disclose) and electronics photosensitive element (figure does not disclose) of the present invention, wherein electronics photosensitive element is set into
As the imaging surface of system.
<12nd embodiment>
Figure 22 is please referred to, is the schematic diagram for being painted a kind of electronic device 20 according to twelveth embodiment of the invention.Tenth
The electronic device 20 of two embodiments is a tablet computer, and electronic device 20 includes image-taking device 21, image-taking device 21 include according to
According to the imaging system (figure does not disclose) and electronics photosensitive element (figure does not disclose) of the present invention, wherein electronics photosensitive element is arranged
In the imaging surface of imaging system.
<13rd embodiment>
Figure 23 is please referred to, is the schematic diagram for being painted a kind of electronic device 30 according to thriteenth embodiment of the invention.Tenth
The electronic device 30 of three embodiments is a head-mounted display (Head-mounted display, HMD), and electronic device 30 wraps
Containing image-taking device 31, image-taking device 31 includes imaging system (figure does not disclose) and electronics photosensitive element (figure according to the present invention
Do not disclose), wherein electronics photosensitive element is set to the imaging surface of imaging system.
Although the present invention is disclosed above with embodiment, however, it is not to limit the invention, any to be familiar with this skill
Person, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations, therefore protection scope of the present invention is worked as
Subject to the scope of which is defined in the appended claims.
Claims (22)
1. a kind of imaging system includes sequentially by object side to image side：
One first lens, it is convex surface to have positive refracting power, the paraxial place in object side surface；
One second lens, it is concave surface to have negative refracting power, the paraxial place in image side surface；
One the third lens；
One the 4th lens, the paraxial place in image side surface is concave surface and off-axis place includes an at least convex surface, object side surface and image side
Surface is all aspherical；And
One the 5th lens, the paraxial place in object side surface are convex surface, and the paraxial place in image side surface is concave surface and off-axis place includes at least
One convex surface, object side surface and image side surface are all aspherical；
Wherein, the lens sum of the imaging system is five, has a air gap, the 4th lens between two adjacent lens
It is CT4 in the thickness on optical axis, the third lens and the 4th lens are T34, the 4th lens in the spacing distance on optical axis
With the 5th lens in the spacing distance on optical axis be T45, meet following condition：
CT4/T34<1.20；
CT4/T45<1.60；
It is characterized in that, the focal length of the imaging system is f, the radius of curvature of the third lens object side surface is R5, and the third is saturating
The radius of curvature of mirror image side surface is R6, and the abbe number of second lens is V2, and the abbe number of the third lens is V3, should
The abbe number of 4th lens is V4, meets following condition：
|f/R5|+|f/R6|<1.10；And
1.75<(V2+V4)/V3。
2. imaging system according to claim 1, which is characterized in that the 4th paraxial place in lens object side surface is convex surface.
3. imaging system according to claim 2, which is characterized in that the abbe number of the third lens is V3, is met
Following condition：
V3<30。
4. imaging system according to claim 2, which is characterized in that the 4th lens are CT4 in the thickness on optical axis, should
The third lens are T34 in the spacing distance on optical axis with the 4th lens, meet following condition：
CT4/T34<1.0。
5. imaging system according to claim 1, which is characterized in that the 4th lens are CT4 in the thickness on optical axis, should
4th lens are T45 in the spacing distance on optical axis with the 5th lens, meet following condition：
CT4/T45<1.48。
6. imaging system according to claim 1, which is characterized in that the 4th lens are CT4 in the thickness on optical axis, should
4th lens are T45 in the spacing distance on optical axis with the 5th lens, meet following condition：
CT4/T45<1.25。
7. imaging system according to claim 1, which is characterized in that the third lens have positive refracting power.
8. imaging system according to claim 1, which is characterized in that the paraxial place in the first lens image side surface is concave surface.
9. imaging system according to claim 1, which is characterized in that the radius of curvature of the 4th lens object side surface is
The focal length of R7, the imaging system are f, meet following condition：
|R7/f|<3.0。
10. imaging system according to claim 9, which is characterized in that the f-number of the imaging system is Fno, this first
Lens object side surface is TL in the distance on optical axis to an imaging surface, and the half at the maximum visual angle of the imaging system is HFOV,
Meet following condition：
1.6<Fno<2.4；
TL<6mm；And
35 degree<HFOV.
11. imaging system according to claim 1, which is characterized in that the radius of curvature of the 4th lens object side surface is
The focal length of R7, the imaging system are f, meet following condition：
|R7/f|<2.3。
12. imaging system according to claim 1, which is characterized in that the focal length of the imaging system is f, the third lens
Focal length be f3, the focal lengths of the 4th lens is f4, and the focal length of the 5th lens is f5, meets following condition：
|f/f3|+|f/f4|+|f/f5|<0.60。
13. imaging system according to claim 1, which is characterized in that the focal length of first lens is f1, second lens
Focal length be f2, the focal lengths of the third lens is f3, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5,
Meet following condition：
|f3|>|f1|；
|f3|>|f2|；
|f3|>|f4|；And
|f3|>|f5|。
14. imaging system according to claim 1, which is characterized in that the radius of curvature of the 4th lens object side surface is
The radius of curvature of R7, the 4th lens image side surface are R8, and the radius of curvature of the 5th lens object side surface is R9, and the 5th thoroughly
The radius of curvature of mirror image side surface is R10, and the focal length of the imaging system is f, meets following condition：
(|R7|+|R8|+|R9|+|R10|)/f<3.5。
15. imaging system according to claim 1, which is characterized in that the third lens are with the 4th lens on optical axis
Spacing distance be T34, the 4th lens and the 5th lens are T45 in the spacing distance on optical axis, first lens, this
In two lens, the third lens, the 4th lens and the 5th lens each two adjacent lens on optical axis spacing distance it is total
With for Σ AT, meet following condition：
0.60<(T34+T45)/ΣAT<0.80。
16. imaging system according to claim 1, which is characterized in that the abbe number of second lens is V2, the third
The abbe number of lens is V3, and the abbe number of the 4th lens is V4, meets following condition：
V2+V3+V4<90。
17. imaging system according to claim 1, which is characterized in that first lens are CT1 in the thickness on optical axis,
Second lens are CT2 in the thickness on optical axis, which is CT3 in the thickness on optical axis, and the 4th lens are in optical axis
On thickness be CT4, the 5th lens are CT5, wherein the maximum in CT1, CT2, CT3, CT4 and CT5 in the thickness on optical axis
For CT5.
18. imaging system according to claim 1, which is characterized in that second lens are CT2 in the thickness on optical axis,
The third lens are CT3 in the thickness on optical axis, and the 4th lens are CT4 in the thickness on optical axis, and the 5th lens are in optical axis
On thickness be CT5, meet following condition：
(CT2+CT3+CT4)/CT5<1.25。
19. imaging system according to claim 1, which is characterized in that the radius of curvature on the 4th lens image side surface is
The radius of curvature of R8, the 5th lens object side surface are R9, meet following condition：
1.20<R8/R9。
20. imaging system according to claim 1, which is characterized in that the focal length of the imaging system is f, the third lens
The radius of curvature of object side surface is R5, and the radius of curvature on the third lens image side surface is R6, meets following condition：
|f/R5|+|f/R6|<0.75。
21. a kind of image-taking device, which is characterized in that include：
Imaging system as described in claim 1；And
One electronics photosensitive element is set to an imaging surface of the imaging system.
22. a kind of electronic device, which is characterized in that include：
Image-taking device as claimed in claim 21.
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| EP3881116B1 (en) * | 2019-01-25 | 2024-03-27 | Samsung Electronics Co., Ltd. | Lens assembly and electronic device including the same |
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| TWI615627B (en) * | 2016-11-18 | 2018-02-21 | 大立光電股份有限公司 | Photographing optical lens system, image capturing unit and electronic device |
| KR101983187B1 (en) * | 2016-12-20 | 2019-05-28 | 삼성전기주식회사 | Optical Imaging System |
| TWI616699B (en) * | 2016-12-29 | 2018-03-01 | 大立光電股份有限公司 | Image capturing assembly, imaging apparatus and electronic device |
| TWI707156B (en) * | 2019-05-17 | 2020-10-11 | 大立光電股份有限公司 | Optical imaging lens assembly, image capturing unit and electronic device |
| CN113820833B (en) * | 2019-06-25 | 2022-08-02 | 浙江舜宇光学有限公司 | Optical imaging lens and electronic equipment |
| CN110687664A (en) * | 2019-10-21 | 2020-01-14 | 江苏光腾光学有限公司 | Optical imaging lens |
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| TWI435136B (en) * | 2010-10-15 | 2014-04-21 | Largan Precision Co Ltd | Optical imaging lens assembly |
| CN103502868B (en) * | 2011-07-25 | 2016-01-20 | 富士胶片株式会社 | Imaging lens system and the camera head being provided with this imaging lens system |
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| CN203773142U (en) * | 2013-03-29 | 2014-08-13 | 富士胶片株式会社 | Imaging lens and imaging apparatus comprising same |
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