Detailed description of the invention
Fig. 1 is painted the image-taking device schematic diagram according to first embodiment of the invention.
Fig. 2 is sequentially spherical aberration, astigmatism and the distortion curve of first embodiment from left to right.
Fig. 3 is painted the image-taking device schematic diagram according to second embodiment of the invention.
Fig. 4 is sequentially spherical aberration, astigmatism and the distortion curve of second embodiment from left to right.
Fig. 5 is painted the image-taking device schematic diagram according to third embodiment of the invention.
Fig. 6 is sequentially spherical aberration, astigmatism and the distortion curve of 3rd embodiment from left to right.
Fig. 7 is painted the image-taking device schematic diagram according to fourth embodiment of the invention.
Fig. 8 is sequentially spherical aberration, astigmatism and the distortion curve of fourth embodiment from left to right.
Fig. 9 is painted the image-taking device schematic diagram according to fifth embodiment of the invention.
Figure 10 is sequentially spherical aberration, astigmatism and the distortion curve of the 5th embodiment from left to right.
Figure 11 is painted the image-taking device schematic diagram according to sixth embodiment of the invention.
Figure 12 is sequentially spherical aberration, astigmatism and the distortion curve of sixth embodiment from left to right.
Figure 13 is painted the image-taking device schematic diagram according to seventh embodiment of the invention.
Figure 14 is sequentially spherical aberration, astigmatism and the distortion curve of the 7th embodiment from left to right.
Figure 15 is painted the image-taking device schematic diagram according to eighth embodiment of the invention.
Figure 16 is sequentially spherical aberration, astigmatism and the distortion curve of the 8th embodiment from left to right.
Figure 17 is painted the schematic diagram according to parameter Sag32, Sag41 in first embodiment of the invention.
Figure 18 is painted the schematic diagram according to a kind of electronic device of the invention.
Figure 19 is painted the schematic diagram according to another electronic device of the invention.
Figure 20 is painted the schematic diagram according to still another electronic device of the invention.
Wherein, appended drawing reference:
Capture Zhuan Zhi ︰ 10
Guang Quan ︰ 100,200,300,400,500,600,700,800
Diaphragm: 101,501
First Tou Jing ︰ 110,210,310,410,510,610,710,810
Object Ce Biao Mian ︰ 111,211,311,411,511,611,711,811
As side surface ︰ 112,212,312,412,512,612,712,812
2nd saturating mirror ︰ 120,220,320,420,520,620,720,820
Object Ce Biao Mian ︰ 121,221,321,421,521,621,721,821
As side surface ︰ 122,222,322,422,522,622,722,822
San Tou Jing ︰ 130,230,330,430,530,630,730,830
Object Ce Biao Mian ︰ 131,231,331,431,531,631,731,831
As side surface ︰ 132,232,332,432,532,632,732,832
4th Tou Jing ︰ 140,240,340,440,540,640,740,840
Object Ce Biao Mian ︰ 141,241,341,441,541,641,741,841
As side surface ︰ 142,242,342,442,542,642,742,842
5th Tou Jing ︰ 150,250,350,450,550,650,750,850
Object Ce Biao Mian ︰ 151,251,351,451,551,651,751,851
As side surface ︰ 152,252,352,452,552,652,752,852
6th Tou Jing ︰ 160,260,360,460,560,660,760,860
Object Ce Biao Mian ︰ 161,261,361,461,561,661,761,861
As side surface ︰ 162,262,362,462,562,662,762,862
Infrared ray filters out optical element ︰ 170,270,370,470,570,670,770,870
Cheng Xiang Mian ︰ 180,280,380,480,580,680,780,880
Electronics photosensitive element ︰ 190,290,390,490,590,690,790,890
CT3 ︰ the third lens are in the thickness on optical axis
The 4th lens of CT4 ︰ are in the thickness on optical axis
CT5: the five lens are in the thickness on optical axis
CT6: the six lens are in the thickness on optical axis
The f-number of Fno ︰ optical imaging lens group
F: the focal length of optical imaging lens group
The focal length of f1: the first lens
The focal length of f2: the second lens
F3: the focal length of the third lens
The focal length of f4: the four lens
The focal length of f5: the five lens
The focal length of f6: the six lens
The half at maximum visual angle in HFOV ︰ optical imaging lens group
ImgH: the maximum image height of optical imaging lens group
The radius of curvature of R1: the first lens object side surface
The radius of curvature of R2: the first lens image side surface
The radius of curvature of R3: the second lens object side surface
The radius of curvature of R4: the second lens image side surface
R5: the radius of curvature of the third lens object side surface
The radius of curvature on the ︰ the third lens image side R6 surface
The radius of curvature of the 4th lens object side surface R7 ︰
The radius of curvature of R8: the four lens image side surface
The radius of curvature of R9: the five lens object side surface
The radius of curvature on the 5th lens image side surface R10 ︰
The radius of curvature of the 6th lens object side surface R11 ︰
The radius of curvature of R12: the six lens image side surface
Sag32: the maximum effective radius of intersection point of the third lens image side surface on optical axis to the third lens image side surfacePosition is in the horizontal displacement distance of optical axis
Intersection point of Sag41: the four lens object side surface on optical axis to the 4th lens object side surface maximum effective radiusPosition is in the horizontal displacement distance of optical axis
T23: the second lens and the third lens are in the spacing distance on optical axis
T34: the third lens and the 4th lens are in the spacing distance on optical axis
Σ AT: each two adjacent lens are in the summation of the spacing distance on optical axis in optical imaging lens group
Σ CT: each lens are in the summation of the lens thickness of optical axis in optical imaging lens group
Specific embodiment
Optical imaging lens group by object side to image side sequentially include the first lens, the second lens, the third lens, the 4th thoroughlyMirror, the 5th lens and the 6th lens.Wherein, the lens of optical imaging lens group are six altogether.
In all having a air gap on optical axis between each two adjacent lens in optical imaging lens group, that is, first thoroughlyMirror, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens can be six single non-bonding lens.Due toThe more non-bonding lens of technique for binding lens are complicated, and the curved surface of high accuracy need to be especially possessed in the bond area of two lens, so as toReach the high adaptation when bonding of two lens, and during bonding, is more likely to cause to move axis defect because of deviation, influence wholeBulk optics image quality.Therefore, optical imaging lens group can effectively avoid glutinous using the configuration of six single non-bonding lensThe problem that closing lens.
First lens have positive refracting power, and object side surface is convex surface at dipped beam axis.Whereby, it is possible to provide optical imagingPositive refracting power needed for lens group is conducive to shorten optics total length.
Second lens can have negative refracting power, and object side surface can be convex surface at dipped beam axis, and image side surface is in dipped beamIt can be concave surface at axis.Whereby, it can effectively make corrections to aberration caused by the first lens.
The third lens have positive refracting power, and object side surface is convex surface at dipped beam axis, and image side surface is at dipped beam axisFor concave surface.Whereby, marginal aberration that can effectively at modified off-axis.In addition, the third lens image side surface in off-axis place can have toA few concave surface switchs to the variation that convex surface switchs to concave surface again.Specifically, the third lens image side surface is located from dipped beam axis to off-axis,The waveform that sequentially can have concave surface, convex surface and concave surface to be constituted.Whereby, it is too big to can avoid marginal ray specific refraction angle, andReduce the generation of coma.
4th lens have negative refracting power, and object side surface is concave surface at dipped beam axis, and image side surface is at dipped beam axisFor convex surface.Whereby, the collocation configuration of the third lens and the 4th lens helps further to correct aberration.
5th lens can have positive refracting power, and image side surface is concave surface at dipped beam axis.Whereby, astigmatism can effectively be reinforcedAmendment, and the light that can suppress off-axis visual field is incident in the angle on photosensitive element, promotes the response efficiency of photosensitive element,The aberration of further modified off-axis visual field.
6th lens can have negative refracting power, and object side surface is convex surface at dipped beam axis, and image side surface is in dipped beam axisPlace is concave surface, and image side surface has an at least convex surface at from optical axis, and object side surface is all aspherical with image side surface.It borrowsThis, can make the principal point (Principal Point) of optical imaging lens group far from image side end, be conducive to shorten optics overall lengthDegree, in favor of the miniaturization of optical imaging lens group.
The radius of curvature on the third lens image side surface is R6, and the radius of curvature of the 4th lens object side surface is R7, is metFollowing condition: -7.0 < R6/R7 < 0.Whereby, facilitate to balance the ability that aberration is corrected between the third lens and the 4th lens, withAvoid the lens error correction located off axis insufficient or excessive problem.In addition, additionally aiding the mirror for slowing down the third lens Yu the 4th lensThe variation of face shape, and be conducive to avoid the generation of ghost.
The radius of curvature of 5th lens image side surface is R10, and the radius of curvature of the 6th lens object side surface is R11, is expiredFoot column condition: 0 < R10/R11 < 2.0.Whereby, the space configuration of the 5th lens and the 6th lens can be balanced, so that the 5th lensIt is more appropriate in the spacing distance on optical axis between the 6th lens, be conducive to the assembling of lens and avoid lens shape mistake simultaneouslyDegree distortion.In addition, the male and female face shape of the 6th lens of collocation also facilitates to shorten back focal length, and correct higher order aberratons.Preferably,It can the following condition of further satisfaction: 0.35 < R10/R11 < 1.85.More preferably, following condition can further be met: 0.50<R10/R11<1.50。
The third lens are in a thickness of CT3, the 4th lens are in, with a thickness of CT4, can meeting following on optical axis on optical axisCondition: CT4/CT3 < 1.15.Whereby, the third lens and the thickness of the 4th lens are more appropriate, facilitate optical imaging lensThe assembling and space configuration of group.
The focal length of the third lens is f3, and the focal length of the 4th lens is f4, can meet following condition: -1.0 < f3/f4 < 0.Whereby, the susceptibility that can effectively reduce optical imaging lens group, further promotes image quality.
The focal length of optical imaging lens group is f, and the radius of curvature on the third lens image side surface is R6, can be met followingCondition: 0 < R6/f < 2.5.Whereby, facilitate the configuration of two surface relief face shape of the third lens, to correct Petzval sum number(Petzval sum), keeps imaging surface more flat.
The focal length of optical imaging lens group is f, and the focal lengths of the third lens is f3, and the focal length of the 4th lens is f4, the 5thThe focal length of lens is f5, and the focal length of the 6th lens is f6, can meet following condition: | f/f3 |+| f/f4 |+| f/f5 |+| f/f6|<1.0.Whereby, facilitate to balance the refracting power of each lens, to avoid because lens refracting power it is excessive, and cause to locate aberration off axis to repairPositive insufficient or excessive problem.Gradually delay each lens for the susceptibility of the manufacturing tolerances such as mirror surface accuracy in addition, additionally aiding.
The third lens are in, with a thickness of CT3, the second lens are in the spacing distance on optical axis with the third lens on optical axisT23, the third lens and the 4th lens are T34 in the spacing distance on optical axis, can meet following condition: CT3/ (T23+T34) <0.75.Whereby, facilitate to configure enough spaces in opposite two sides of the third lens, avoid the third lens in assembling with it is adjacentLens generate interference.
4th lens on optical axis with a thickness of CT4, intersection point of the 4th lens object side surface on optical axis to the 4th lensThe maximum effective radius position of object side surface is Sag41 in the horizontal displacement distance of optical axis, can meet following condition: | Sag41|/CT4<1.10.Whereby, the structural strength for facilitating the 4th lens of reinforcement avoids causing in assembling because lens curvature is excessiveThe doubt of rupture.Figure 17 is please referred to, the schematic diagram of the parameter Sag41 according to first embodiment of the invention is painted.Above-mentioned horizontal positionMoving distance, then the definition of its value is positive towards image side direction, and towards object side direction, then the definition of its value is negative.
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 lensIt is f5 away from the focal length for f4, the 5th lens, the focal length of the 6th lens is f6, and the focal length for being also denoted as i-th lens is fi,Following condition can be met: Σ (f1/ | fi |) < 1.75, wherein i=2,3,4,5,6.Whereby, facilitate to balance the flexion of each lensPower configuration, avoids aberration over-correction.
Each two adjacent lens are Σ AT in the summation of the spacing distance on optical axis in optical imaging lens group, and camera shooting is used upEach lens are Σ CT in the summation of the lens thickness of optical axis in lens group, and the maximum image height of optical imaging lens group isImgH (i.e. the half of effective sensing region diagonal line overall length of electronics photosensitive element), can meet following condition: 0.75 < (ΣCT/ImgH)+(ΣAT/ImgH)<1.33.Whereby, facilitate to shorten the total length of optical imaging lens group and maintain its small-sizedChange.Wherein, Σ AT be the first lens and the second lens in spacing distance, the second lens and the third lens on optical axis in optical axisOn spacing distance, the third lens and the 4th lens in spacing distance, the 4th lens and the 5th lens on optical axis on optical axisSpacing distance and the 5th lens and the 6th lens in the summation of the spacing distance on optical axis.In addition, Σ CT is first saturatingMirror on optical axis thickness, the second lens on optical axis thickness, the third lens on optical axis thickness, the 4th lens are in optical axisOn thickness, the 5th lens on optical axis thickness and the 6th lens in the summation of the thickness on optical axis.
Second lens and the third lens are T23 in the spacing distance on optical axis, and the third lens and the 4th lens are on optical axisSpacing distance be T34, following condition: T23/T34 < 1.5 can be met.Whereby, the position configuration of the third lens is more particularly suitable,Be conducive to the miniaturization of optical imaging lens group.
5th lens are in a thickness of CT5, the 6th lens are in, with a thickness of CT6, can meeting following on optical axis on optical axisCondition: CT5/CT6 < 0.95.Whereby, the thickness that can suitably deploy the 5th lens and the 6th lens helps to shorten to image and use upLearn the back focal length of lens group.
The focal length of optical imaging lens group is f, and the radius of curvature on the 5th lens image side surface is R10, under can meetingColumn condition: 0 < R10/f < 1.0.Whereby, spherical aberration can effectively be corrected.
The focal length of optical imaging lens group is f, and the radius of curvature of the 5th lens object side surface is R9, the 5th lens image sideThe radius of curvature on surface is R10, can meet following condition: | R9/f |+| R10/f | < 1.85.Whereby, it helps and adds modified off-axisLocate the image curvature on image periphery.
For each lens of optical imaging lens group in the thickness on optical axis, the 6th lens can be in the thickness on optical axisFor maximum value.That is, the 6th lens in the thickness on optical axis can be greater than the first lens on optical axis thickness, second thoroughlyMirror on optical axis thickness, the third lens on optical axis thickness, the 4th lens on optical axis thickness and the 5th lens inThickness on optical axis.Whereby, the 6th lens have enough structural strengths and are conducive to lens molding, avoid because of lens surface songRate is excessive and to be directed at yield too low, and further helps in increase assembling success rate.
The radius of curvature of first lens object side surface is R1, and the radius of curvature on the first lens image side surface is R2, and second thoroughlyThe radius of curvature of mirror object side surface is R3, and the radius of curvature on the second lens image side surface is R4, the song of the third lens object side surfaceRate radius is R5, and the radius of curvature on the third lens image side surface is R6, and the radius of curvature of the 4th lens object side surface is R7, the 4thThe radius of curvature on lens image side surface is R8, and the radius of curvature of the 5th lens object side surface is R9, the 5th lens image side surfaceRadius of curvature is R10, and the radius of curvature of the 6th lens object side surface is R11, and the radius of curvature on the 6th lens image side surface isR12 can meet following condition: | R12 | < | Ri |, wherein i=1,2,3,4,5,6,7,8,9,10,11.Whereby, principal point can be madeClose to the object side of optical imaging lens group, help to shorten back focal length, while collocation can be suitably used for the sense of big chief ray angleOptical element can effectively shorten the total length of lens group.
The third lens on optical axis with a thickness of CT3, intersection point of the third lens image side surface on optical axis to the third lensThe maximum effective radius position on image side surface is Sag32 in the horizontal displacement distance of optical axis, can meet following condition: | Sag32|/CT3<0.15.Whereby, be conducive to slow down the third lens image side surface in the curvature located off axis, it is saturating in third to can avoid incident lightThe off-axis place of mirror image side surface generates reflection.Figure 17 is please referred to, is painted and shows according to parameter Sag32 in first embodiment of the inventionIt is intended to.Towards image side direction, then the definition of its value is positive above-mentioned horizontal displacement distance, and towards object side direction, then the definition of its value is negative.
The invention discloses optical imaging lens group in, the configuration of aperture can for preposition aperture or in set aperture.WhereinPreposition aperture implies that aperture is set between object and the first lens, in set aperture then and indicate aperture be set to the first lens atBetween image planes.If aperture is preposition aperture, the outgoing pupil (Exit Pupil) of optical imaging lens group and imaging surface can be made to generateLonger distance makes it have telecentricity (Telecentric) effect, and the CCD or CMOS that can increase electronics photosensitive element are receivedThe efficiency of image；Aperture is set if in, facilitates the field angle of expansion system, with the advantage with wide-angle lens.
The invention discloses optical imaging lens group in, the material of lens can be plastics or glass.When the material of lensFor glass, the freedom degree of refracting power configuration can be increased.Separately working as lens material is plastics, then production cost can be effectively reduced.In addition, can be aspherical to be easy to be fabricated to the shape other than spherical surface in being arranged on lens surface aspherical (ASP), obtain compared withMore control variables uses the number of lens to cut down aberration, and then needed for reducing, therefore optics overall length can be effectively reducedDegree.
The invention discloses optical imaging lens group in, if lens surface is convex surface and when not defining the convex surface position,Then indicate that the convex surface can be located at lens surface dipped beam axis；If lens surface is concave surface and does not define the concave surface position, tableShow that the concave surface can be located at lens surface dipped beam axis.If the refracting power or focal length of lens do not define its regional location, then it represents thatThe refracting power or focal length of the lens can be refracting power or focal length of the lens at dipped beam axis.
The invention discloses optical imaging lens group in, imaging surface, can according to the difference of its corresponding electronics photosensitive elementIt is a flat surface or is had the curved surface of any curvature, particularly relates to concave surface towards the curved surface toward object side direction.
In optical imaging lens group of the present invention, may be provided with an at least diaphragm, position can before the first lens, it is eachBetween lens or after last lens, the type such as credit light diaphragm (Glare Stop) or field stop (Field of the diaphragmStop) etc., it can be used to reduce stray light, help to promote the quality of image.
The present invention more provides a kind of image-taking device, it includes aforementioned optical imaging lens group and electronics photosensitive element,Wherein electronics photosensitive element is set on the imaging surface of optical imaging lens group.Preferably, the image-taking device can be wrapped furtherContaining lens barrel, support device (Holder Member) or combinations thereof.
Figure 18,19 and 20 are please referred to, image-taking device 10 many-sided can be applied to smartphone (as shown in figure 18), plateThe electronic devices such as computer (as shown in figure 19), wearable device (as shown in figure 20).Preferably, electronic device can be wrapped furtherContaining control unit, display unit, storage element, Random Access Storage Unit (RAM) or combinations thereof.
The more visual demand of optical imaging lens group of the invention is applied in the optical system of mobile focusing, and has both excellentThe characteristic of good lens error correction and good image quality.The present invention many-sided can also be applied to three-dimensional (3D) image capture, numerical digit phaseMachine, running gear, tablet computer, intelligent TV, network monitoring device, drive recorder, reversing developing apparatus, body-sensing tripIn the electronic devices such as gaming machine and wearable device.Before to take off electronic device only be exemplarily to illustrate practice example of the inventionSon not limits the operation strategies of image-taking device of the invention.
According to above embodiment, specific embodiment set forth below simultaneously cooperates schema to be described in detail.
<first embodiment>
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is painted the image-taking device schematic diagram according to first embodiment of the invention, Fig. 2 byLeft-to-right is sequentially spherical aberration, astigmatism and the distortion curve of first embodiment.As shown in Figure 1, image-taking device includes that camera shooting is usedOptical lens group (not another label) and electronics photosensitive element 190.Optical imaging lens group sequentially includes light by object side to image sideEnclose the 100, first lens 110, the second lens 120, diaphragm 101, the third lens 130, the 4th lens 140, the 5th lens 150, theSix lens 160, infrared ray filter out filter element (IR-cut Filter) 170 and imaging surface 180.Wherein, electronics photosensitive element190 are set on imaging surface 180.The lens (110-160) of optical imaging lens group are six, and optical imaging lens groupIn between each two adjacent lens in all having a air gap on optical axis.In addition, diaphragm 101 can be credit light diaphragm or visual field lightDoor screen.
First lens 110 have positive refracting power, and are plastic material, and object side surface 111 is convex surface at dipped beam axis,Image side surface 112 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 120 have negative refracting power, and are plastic material, and object side surface 121 is convex surface at dipped beam axis,Image side surface 122 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 130 have positive refracting power, and are plastic material, and object side surface 131 is convex surface at dipped beam axis,Image side surface 132 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 132 has at least in off-axis placeOne concave surface switchs to the variation that convex surface switchs to concave surface again.
4th lens 140 have negative refracting power, and are plastic material, and object side surface 141 is concave surface at dipped beam axis,Image side surface 142 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 150 have negative refracting power, and are plastic material, and object side surface 151 is convex surface at dipped beam axis,Image side surface 152 is concave surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 160 have positive refracting power, and are plastic material, and object side surface 161 is convex surface at dipped beam axis,Image side surface 162 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 162 at from optical axis have extremelyA few convex surface.
Each lens of the optical imaging lens group of the present embodiment are in the thickness on optical axis, and the 6th lens 160 are in lightOn axis with a thickness of maximum value.That is, the 6th lens 160 in the thickness on optical axis be greater than other lenses (110-150) inThickness on optical axis.
The material that infrared ray filters out filter element 170 is glass, is set between the 6th lens 160 and imaging surface 180,Have no effect on the focal length of optical imaging lens group.
The aspherical fitting equation of above-mentioned each lens is expressed as follows:
In the optical imaging lens group of first embodiment, the focal length of optical imaging lens group is f, and optical imaging is saturatingThe f-number (F-number) of microscope group is Fno, and the half at maximum visual angle is HFOV in optical imaging lens group, and numerical value is such asUnder: f=3.79 millimeters (mm), Fno=2.25, HFOV=40.1 degree (deg.).
The radius of curvature on the third lens image side surface 132 is R6, and the radius of curvature of the 4th lens object side surface 141 is R7,It meets following condition: R6/R7=-0.83.
The radius of curvature of 5th lens image side surface 152 is R10, and the radius of curvature of the 6th lens object side surface 161 isR11 meets following condition: R10/R11=1.66.
The third lens 130 are in a thickness of CT3, the 4th lens 140 on optical axis in, with a thickness of CT4, meeting on optical axisFollowing condition: CT4/CT3=0.83.
The focal length of the third lens 130 is f3, and the focal length of the 4th lens 140 is f4, meets following condition: f3/f4=-0.34。
The focal length of optical imaging lens group is f, and the radius of curvature on the third lens image side surface 132 is R6, under meetingColumn condition: R6/f=3.04.
The focal length of optical imaging lens group is f, and the focal length of the third lens 130 is f3, and the focal length of the 4th lens 140 isF4, the focal length of the 5th lens 150 are f5, and the focal length of the 6th lens 160 is f6, meet following condition: | f/f3 |+| f/f4 |+|F/f5 |+| f/f6 |=0.54.
The third lens 130 are in, with a thickness of CT3, the second lens 120 are with the third lens 130 in the interval on optical axis on optical axisIt is T34 apart from being T23, the third lens 130 and the 4th lens 140 in the spacing distance on optical axis, meets following condition: CT3/(T23+T34)=0.49.
4th lens 140 on optical axis with a thickness of CT4, intersection point of the 4th lens object side surface 141 on optical axis toThe maximum effective radius position of four lens object side surfaces 141 is Sag41 in the horizontal displacement distance of optical axis, meets following itemPart: | Sag41 |/CT4=0.78.
The focal length of first lens 110 is f1, and the focal length of the second lens 120 is f2, and the focal length of the third lens 130 is f3, theThe focal length of four lens 140 is f4, and the focal length of the 5th lens 150 is f5, and the focal length of the 6th lens 160 is f6, is also denoted as i-thThe focal length of lens is fi, meets following condition: Σ (f1/ | fi |)=1.03, wherein i=2,3,4,5,6.
Each two adjacent lens are Σ AT in the summation of the spacing distance on optical axis in optical imaging lens group, and camera shooting is used upEach lens are Σ CT in the summation of the lens thickness of optical axis in lens group, and the maximum image height of optical imaging lens group isImgH meets following condition: (Σ CT/ImgH)+(Σ AT/ImgH)=1.06.
Second lens 120 and the third lens 130 are T23, the third lens 130 and the 4th lens in the spacing distance on optical axis140 in the spacing distance on optical axis be T34, meet following condition: T23/T34=0.49.
5th lens 150 are in a thickness of CT5, the 6th lens 160 on optical axis in, with a thickness of CT6, meeting on optical axisFollowing condition: CT5/CT6=0.79.
The focal length of optical imaging lens group is f, and the radius of curvature on the 5th lens image side surface 152 is R10, under meetingColumn condition: R10/f=0.60.
The focal length of optical imaging lens group is f, and the radius of curvature of the 5th lens object side surface 151 is R9, the 5th lensThe radius of curvature on image side surface 152 is R10, meets following condition: | R9/f |+| R10/f |=1.30.
The third lens 130 on optical axis with a thickness of CT3, intersection point of the third lens image side surface 132 on optical axis toThe maximum effective radius position of three lens image sides surface 132 in optical axis level shifts from for Sag32, meet following condition: |Sag32 |/CT3=0.06.
Cooperation is referring to following table one and table two.
Table one is the detailed structured data of Fig. 1 first embodiment, and wherein the unit of radius of curvature, thickness and focal length is millimeter(mm), and surface 0 to 16 is sequentially indicated by the surface of object side to image side.Table two is the aspherical surface data in first embodiment,In, k is the conical surface coefficient in aspheric curve equation, and A4 to A16 then indicates each the 4 to 16th rank asphericity coefficient of surface.ThisOutside, following embodiment table is the schematic diagram and aberration curve figure of corresponding each embodiment, and the definition of data is all with the in tableThe definition of the table one and table two of one embodiment is identical, and not in this to go forth.
<second embodiment>
Referring to figure 3. and Fig. 4, wherein Fig. 3 is painted the image-taking device schematic diagram according to second embodiment of the invention, Fig. 4 byLeft-to-right is sequentially spherical aberration, astigmatism and the distortion curve of second embodiment.From the figure 3, it may be seen that image-taking device includes that camera shooting is usedOptical lens group (not another label) and electronics photosensitive element 290.Optical imaging lens group sequentially includes by object side to image sideOne lens 210, aperture 200, the second lens 220, the third lens 230, the 4th lens 240, the 5th lens 250, the 6th lens260, infrared ray filters out filter element (IR-cut Filter) 270 and imaging surface 280.Wherein, electronics photosensitive element 290 is arrangedIn on imaging surface 280.The lens (210-260) of optical imaging lens group are six, and each two in optical imaging lens groupBetween adjacent lens on optical axis all have a air gap.
First lens 210 have positive refracting power, and are plastic material, and object side surface 211 is convex surface at dipped beam axis,Image side surface 212 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 220 have negative refracting power, and are plastic material, and object side surface 221 is convex surface at dipped beam axis,Image side surface 222 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 230 have positive refracting power, and are plastic material, and object side surface 231 is convex surface at dipped beam axis,Image side surface 232 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 232 has at least in off-axis placeOne concave surface switchs to the variation that convex surface switchs to concave surface again.
4th lens 240 have negative refracting power, and are plastic material, and object side surface 241 is concave surface at dipped beam axis,Image side surface 242 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 250 have positive refracting power, and are plastic material, and object side surface 251 is convex surface at dipped beam axis,Image side surface 252 is concave surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 260 have negative refracting power, and are plastic material, and object side surface 261 is convex surface at dipped beam axis,Image side surface 262 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 262 at from optical axis have extremelyA few convex surface.
Each lens of the optical imaging lens group of the present embodiment are in the thickness on optical axis, and the 6th lens 260 are in lightOn axis with a thickness of maximum value.That is, the 6th lens 260 in the thickness on optical axis be greater than other lenses (210-250) inThickness on optical axis.
The material that infrared ray filters out filter element 270 is glass, is set between the 6th lens 260 and imaging surface 280,Have no effect on the focal length of optical imaging lens group.
It please cooperate referring to following table three and table four.
In second embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following tableDefinition is all identical with the first embodiment, and not in this to go forth.
<3rd embodiment>
Referring to figure 5. and Fig. 6, wherein Fig. 5 is painted the image-taking device schematic diagram according to third embodiment of the invention, Fig. 6 byLeft-to-right is sequentially spherical aberration, astigmatism and the distortion curve of 3rd embodiment.As shown in Figure 5, image-taking device includes that camera shooting is usedOptical lens group (not another label) and electronics photosensitive element 390.Optical imaging lens group sequentially includes light by object side to image sideEnclose the 300, first lens 310, the second lens 320, the third lens 330, the 4th lens 340, the 5th lens 350, the 6th lens360, infrared ray filters out filter element (IR-cut Filter) 370 and imaging surface 380.Wherein, electronics photosensitive element 390 is arrangedIn on imaging surface 380.The lens (310-360) of optical imaging lens group are six, and each two in optical imaging lens groupBetween adjacent lens on optical axis all have a air gap.
First lens 310 have positive refracting power, and are plastic material, and object side surface 311 is convex surface at dipped beam axis,Image side surface 312 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 320 have negative refracting power, and are plastic material, and object side surface 321 is convex surface at dipped beam axis,Image side surface 322 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 330 have positive refracting power, and are plastic material, and object side surface 331 is convex surface at dipped beam axis,Image side surface 332 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 332 has at least in off-axis placeOne concave surface switchs to the variation that convex surface switchs to concave surface again.
4th lens 340 have negative refracting power, and are plastic material, and object side surface 341 is concave surface at dipped beam axis,Image side surface 342 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 350 have positive refracting power, and are plastic material, and object side surface 351 is convex surface at dipped beam axis,Image side surface 352 is concave surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 360 have negative refracting power, and are plastic material, and object side surface 361 is convex surface at dipped beam axis,Image side surface 362 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 362 at from optical axis have extremelyA few convex surface.
Each lens of the optical imaging lens group of the present embodiment are in the thickness on optical axis, and the 6th lens 360 are in lightOn axis with a thickness of maximum value.That is, the 6th lens 360 in the thickness on optical axis be greater than other lenses (310-350) inThickness on optical axis.
The material that infrared ray filters out filter element 370 is glass, is set between the 6th lens 360 and imaging surface 380,Have no effect on the focal length of optical imaging lens group.
It please cooperate referring to following table five and table six.
In 3rd embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following tableDefinition is all identical with the first embodiment, and not in this to go forth.
<fourth embodiment>
Please refer to Fig. 7 and Fig. 8, wherein Fig. 7 is painted the image-taking device schematic diagram according to fourth embodiment of the invention, Fig. 8 byLeft-to-right is sequentially spherical aberration, astigmatism and the distortion curve of fourth embodiment.As shown in Figure 7, image-taking device includes that camera shooting is usedOptical lens group (not another label) and electronics photosensitive element 490.Optical imaging lens group sequentially includes light by object side to image sideEnclose the 400, first lens 410, the second lens 420, the third lens 430, the 4th lens 440, the 5th lens 450, the 6th lens460, infrared ray filters out filter element (IR-cut Filter) 470 and imaging surface 480.Wherein, electronics photosensitive element 490 is arrangedIn on imaging surface 480.The lens (410-460) of optical imaging lens group are six, and each two in optical imaging lens groupBetween adjacent lens on optical axis all have a air gap.
First lens 410 have positive refracting power, and are plastic material, and object side surface 411 is convex surface at dipped beam axis,Image side surface 412 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 420 have negative refracting power, and are plastic material, and object side surface 421 is convex surface at dipped beam axis,Image side surface 422 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 430 have positive refracting power, and are plastic material, and object side surface 431 is convex surface at dipped beam axis,Image side surface 432 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 432 has at least in off-axis placeOne concave surface switchs to the variation that convex surface switchs to concave surface again.
4th lens 440 have negative refracting power, and are plastic material, and object side surface 441 is concave surface at dipped beam axis,Image side surface 442 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 450 have positive refracting power, and are plastic material, and object side surface 451 is convex surface at dipped beam axis,Image side surface 452 is concave surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 460 have negative refracting power, and are plastic material, and object side surface 461 is convex surface at dipped beam axis,Image side surface 462 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 462 at from optical axis have extremelyA few convex surface.
Each lens of the optical imaging lens group of the present embodiment are in the thickness on optical axis, and the 6th lens 460 are in lightOn axis with a thickness of maximum value.That is, the 6th lens 460 in the thickness on optical axis be greater than other lenses (410-450) inThickness on optical axis.
The material that infrared ray filters out filter element 470 is glass, is set between the 6th lens 460 and imaging surface 480,Have no effect on the focal length of optical imaging lens group.
It please cooperate referring to following table seven and table eight.
In fourth embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following tableDefinition is all identical with the first embodiment, and not in this to go forth.
<the 5th embodiment>
Fig. 9 and Figure 10 is please referred to, wherein Fig. 9 is painted the image-taking device schematic diagram according to fifth embodiment of the invention, Figure 10It is from left to right sequentially spherical aberration, astigmatism and the distortion curve of the 5th embodiment.As shown in Figure 9, image-taking device includes camera shootingWith optical lens group (not another label) and electronics photosensitive element 590.Optical imaging lens group sequentially includes by object side to image sideAperture 500, the first lens 510, the second lens 520, diaphragm 501, the third lens 530, the 4th lens 540, the 5th lens 550,6th lens 560, infrared ray filter out filter element (IR-cut Filter) 570 and imaging surface 580.Wherein, electronics photosensitive element590 are set on imaging surface 580.The lens (510-560) of optical imaging lens group are six, and optical imaging lens groupIn between each two adjacent lens in all having a air gap on optical axis.In addition, diaphragm 501 can be credit light diaphragm or visual field lightDoor screen.
First lens 510 have positive refracting power, and are plastic material, and object side surface 511 is convex surface at dipped beam axis,Image side surface 512 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 520 have negative refracting power, and are plastic material, and object side surface 521 is convex surface at dipped beam axis,Image side surface 522 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 530 have positive refracting power, and are plastic material, and object side surface 531 is convex surface at dipped beam axis,Image side surface 532 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 532 has at least in off-axis placeOne concave surface switchs to the variation that convex surface switchs to concave surface again.
4th lens 540 have negative refracting power, and are plastic material, and object side surface 541 is concave surface at dipped beam axis,Image side surface 542 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 550 have negative refracting power, and are plastic material, and object side surface 551 is convex surface at dipped beam axis,Image side surface 552 is concave surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 560 have negative refracting power, and are plastic material, and object side surface 561 is convex surface at dipped beam axis,Image side surface 562 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 562 at from optical axis have extremelyA few convex surface.
Each lens of the optical imaging lens group of the present embodiment are in the thickness on optical axis, and the 6th lens 560 are in lightOn axis with a thickness of maximum value.That is, the 6th lens 560 in the thickness on optical axis be greater than other lenses (510-550) inThickness on optical axis.
The material that infrared ray filters out filter element 570 is glass, is set between the 6th lens 560 and imaging surface 580,Have no effect on the focal length of optical imaging lens group.
It please cooperate referring to following table nine and table ten.
In 5th embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following tableDefinition is all identical with the first embodiment, and not in this to go forth.
<sixth embodiment>
Figure 11 and Figure 12 is please referred to, wherein Figure 11 is painted the image-taking device schematic diagram according to sixth embodiment of the invention, figure12 be sequentially spherical aberration, astigmatism and the distortion curve of sixth embodiment from left to right.As shown in Figure 11, image-taking device includes and takes the photographAs using optical lens group (not another label) and electronics photosensitive element 690.Optical imaging lens group is sequentially wrapped by object side to image sideThoroughly containing the first lens 610, aperture 600, the second lens 620, the third lens 630, the 4th lens 640, the 5th lens the 650, the 6thMirror 660, infrared ray filter out filter element (IR-cut Filter) 670 and imaging surface 680.Wherein, electronics photosensitive element 690 is setIt is placed on imaging surface 680.The lens (610-660) of optical imaging lens group are six, and each in optical imaging lens groupBetween two adjacent lens on optical axis all have a air gap.
First lens 610 have positive refracting power, and are plastic material, and object side surface 611 is convex surface at dipped beam axis,Image side surface 612 is convex surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 620 have negative refracting power, and are plastic material, and object side surface 621 is concave surface at dipped beam axis,Image side surface 622 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 630 have positive refracting power, and are plastic material, and object side surface 631 is convex surface at dipped beam axis,Image side surface 632 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 632 has at least in off-axis placeOne concave surface switchs to the variation that convex surface switchs to concave surface again.
4th lens 640 have negative refracting power, and are plastic material, and object side surface 641 is concave surface at dipped beam axis,Image side surface 642 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 650 have positive refracting power, and are plastic material, and object side surface 651 is convex surface at dipped beam axis,Image side surface 652 is concave surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 660 have positive refracting power, and are plastic material, and object side surface 661 is convex surface at dipped beam axis,Image side surface 662 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 662 at from optical axis have extremelyA few convex surface.
Each lens of the optical imaging lens group of the present embodiment are in the thickness on optical axis, and the 6th lens 660 are in lightOn axis with a thickness of maximum value.That is, the 6th lens 660 in the thickness on optical axis be greater than other lenses (610-650) inThickness on optical axis.
The material that infrared ray filters out filter element 670 is glass, is set between the 6th lens 660 and imaging surface 680,Have no effect on the focal length of optical imaging lens group.
It please cooperate referring to following table 11 and table 12.
In sixth embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following tableDefinition is all identical with the first embodiment, and not in this to go forth.
<the 7th embodiment>
Figure 13 and Figure 14 is please referred to, wherein Figure 13 is painted the image-taking device schematic diagram according to seventh embodiment of the invention, figure14 be sequentially spherical aberration, astigmatism and the distortion curve of the 7th embodiment from left to right.As shown in Figure 13, image-taking device includes and takes the photographAs using optical lens group (not another label) and electronics photosensitive element 790.Optical imaging lens group is sequentially wrapped by object side to image sideThoroughly containing aperture 700, the first lens 710, the second lens 720, the third lens 730, the 4th lens 740, the 5th lens the 750, the 6thMirror 760, infrared ray filter out filter element (IR-cut Filter) 770 and imaging surface 780.Wherein, electronics photosensitive element 790 is setIt is placed on imaging surface 780.The lens (710-760) of optical imaging lens group are six, and each in optical imaging lens groupBetween two adjacent lens on optical axis all have a air gap.
First lens 710 have positive refracting power, and are plastic material, and object side surface 711 is convex surface at dipped beam axis,Image side surface 712 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 720 have negative refracting power, and are plastic material, and object side surface 721 is plane at dipped beam axis,Image side surface 722 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 730 have positive refracting power, and are plastic material, and object side surface 731 is convex surface at dipped beam axis,Image side surface 732 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 732 has at least in off-axis placeOne concave surface switchs to the variation that convex surface switchs to concave surface again.
4th lens 740 have negative refracting power, and are plastic material, and object side surface 741 is concave surface at dipped beam axis,Image side surface 742 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 750 have negative refracting power, and are plastic material, and object side surface 751 is convex surface at dipped beam axis,Image side surface 752 is concave surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 760 have positive refracting power, and are plastic material, and object side surface 761 is convex surface at dipped beam axis,Image side surface 762 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 762 at from optical axis have extremelyA few convex surface.
The material that infrared ray filters out filter element 770 is glass, is set between the 6th lens 760 and imaging surface 780,Have no effect on the focal length of optical imaging lens group.
It please cooperate referring to following table 13 and table 14.
In 7th embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following tableDefinition is all identical with the first embodiment, and not in this to go forth.
<the 8th embodiment>
Figure 15 and Figure 16 is please referred to, wherein Figure 15 is painted the image-taking device schematic diagram according to eighth embodiment of the invention, figure16 be sequentially spherical aberration, astigmatism and the distortion curve of the 8th embodiment from left to right.As shown in Figure 15, image-taking device includes and takes the photographAs using optical lens group (not another label) and electronics photosensitive element 890.Optical imaging lens group is sequentially wrapped by object side to image sideThoroughly containing aperture 800, the first lens 810, the second lens 820, the third lens 830, the 4th lens 840, the 5th lens the 850, the 6thMirror 860, infrared ray filter out filter element (IR-cut Filter) 870 and imaging surface 880.Wherein, electronics photosensitive element 890 is setIt is placed on imaging surface 880.The lens (810-860) of optical imaging lens group are six, and each in optical imaging lens groupBetween two adjacent lens on optical axis all have a air gap.
First lens 810 have positive refracting power, and are plastic material, and object side surface 811 is convex surface at dipped beam axis,Image side surface 812 is plane at dipped beam axis, and two surfaces are all aspherical.
Second lens 820 have negative refracting power, and are plastic material, and object side surface 821 is convex surface at dipped beam axis,Image side surface 822 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 830 have positive refracting power, and are plastic material, and object side surface 831 is convex surface at dipped beam axis,Image side surface 832 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 832 has at least in off-axis placeOne concave surface switchs to the variation that convex surface switchs to concave surface again.
4th lens 840 have negative refracting power, and are plastic material, and object side surface 841 is concave surface at dipped beam axis,Image side surface 842 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 850 have positive refracting power, and are plastic material, and object side surface 851 is convex surface at dipped beam axis,Image side surface 852 is concave surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 860 have negative refracting power, and are plastic material, and object side surface 861 is convex surface at dipped beam axis,Image side surface 862 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 862 at from optical axis have extremelyA few convex surface.
The material that infrared ray filters out filter element 870 is glass, is set between the 6th lens 860 and imaging surface 880,Have no effect on the focal length of optical imaging lens group.
It please cooperate referring to following table 15 and table 16.
In 8th embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following tableDefinition is all identical with the first embodiment, and not in this to go forth.
Although the present invention is disclosed above with embodiment, however, it is not to limit the invention, any to be familiar with this skillPerson, 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 asSubject to the scope of which is defined in the appended claims.