CN109669254A - Optical imaging lens group, image-taking device and electronic device - Google Patents
Optical imaging lens group, image-taking device and electronic device Download PDFInfo
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- CN109669254A CN109669254A CN201910006285.2A CN201910006285A CN109669254A CN 109669254 A CN109669254 A CN 109669254A CN 201910006285 A CN201910006285 A CN 201910006285A CN 109669254 A CN109669254 A CN 109669254A
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- 238000012634 optical imaging Methods 0.000 title claims abstract 37
- 230000003287 optical effect Effects 0.000 claims abstract 22
- 238000006073 displacement reaction Methods 0.000 claims 2
- 238000003384 imaging method Methods 0.000 claims 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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- Optics & Photonics (AREA)
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Abstract
It sequentially includes the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens by object side to image side that the present invention, which discloses a kind of optical imaging lens group, image-taking device and electronic device, optical imaging lens group,.First lens have positive refracting power, and object side surface is convex surface at dipped beam axis.The third lens object side surface is convex surface at dipped beam axis, and image side surface is concave surface at dipped beam axis.4th lens have negative refracting power, and object side surface is concave surface at dipped beam axis.5th lens image side surface is concave surface at dipped beam axis.6th lens object side surface is convex surface at dipped beam axis, and image side surface is concave surface at dipped beam axis, 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.The lens sum of optical imaging lens group is six.Invention additionally discloses the image-taking device with above-mentioned optical imaging lens group and with the electronic device of image-taking device.
Description
The application is divisional application, the applying date of original application are as follows: on January 29th, 2016；Application No. is:
201610064860.0；Denomination of invention are as follows: optical imaging lens group, image-taking device and electronic device.
Technical field
The present invention relates to a kind of optical imaging lens group, image-taking device and electronic device, especially one kind to be suitable for
The optical imaging lens group and image-taking device of electronic device.
Background technique
In recent years, flourishing with miniaturization phtographic lens, the demand of minisize image acquisition module increasingly improves, and with
Semiconductor process technique progresses greatly so that the Pixel Dimensions of photosensitive element reduce, along with electronic product now with function it is good and
Light and short external form is development trend, and therefore, the miniaturization phtographic lens for having good image quality becomes current city
Mainstream on field.
Since the high standards such as high-grade intelligent mobile phone, wearable device and tablet computer running gear in recent years is towards frivolous
The direction of change is developed, and more requirement of the drive pick-up lens in miniaturization is promoted, and the optical system of conventional lenses configuration is difficult
The needs of to meet large aperture and short overall length simultaneously.Therefore it provides can apply to advanced electronics and there is large aperture simultaneously
With the high imaging quality miniaturized optical system of short overall length feature, one of the problem of actually current industry is to be solved.
Summary of the invention
The present invention provides a kind of optical imaging lens group, image-taking device and electronic device, and wherein optical imaging is saturating
The lens sum of microscope group is six.Wherein, the first lens have positive refracting power, and object side surface is convex surface at dipped beam axis.The
Three lens object side surfaces are convex surface at dipped beam axis, and image side surface is concave surface at dipped beam axis.4th lens have negative flexion
Power, object side surface are concave surface at dipped beam axis.5th lens image side surface is concave surface at dipped beam axis.6th lens object side table
Face is convex surface at dipped beam axis, and image side surface is concave surface at dipped beam axis, and image side surface has at least one at from optical axis
Convex surface, object side surface are all aspherical with image side surface.When a specific condition is satisfied, optical imaging provided by the present invention
Lens group can meet the demands such as large aperture, short overall length and high imaging quality simultaneously.
The present invention provides a kind of optical imaging lens group, by object side to image side sequentially include the first lens, the second lens,
The third lens, the 4th lens, the 5th lens and the 6th lens.First lens have positive refracting power, and object side surface is in dipped beam axis
Place is convex surface.The third lens object side surface is convex surface at dipped beam axis, and image side surface is concave surface at dipped beam axis.4th lens
With negative refracting power, object side surface is concave surface at dipped beam axis.5th lens image side surface is concave surface at dipped beam axis.6th
Lens object side surface is convex surface at dipped beam axis, and image side surface is concave surface at dipped beam axis, and image side surface is at from optical axis
With an at least convex surface, object side surface is all aspherical with image side surface.The lens sum of optical imaging lens group is six
Piece.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, the second lens object side
The radius of curvature on surface is R3, and the radius of curvature on the second lens image side surface is R4, the radius of curvature of the third lens object side surface
For R5, 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 4th lens picture
The radius of curvature of side surface is R8, and the radius of curvature of the 5th lens object side surface is R9, the curvature half on the 5th lens image side surface
Diameter 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 is R12, is expired
Foot column condition:
-7.0<R6/R7<0；
0<R10/R11<2.0；And
| R12 | < | Ri |, wherein i=1,2,3,4,5,6,7,8,9,10,11.
The present invention separately provides a kind of image-taking device, and it includes optical imaging lens groups above-mentioned and the photosensitive member of an electronics
Part, wherein electronics photosensitive element is set on the imaging surface of optical imaging lens group.
The present invention separately provides a kind of electronic device, and it includes image-taking devices above-mentioned.
When R6/R7 meets above-mentioned condition, help to balance the ability that aberration is corrected between the third lens and the 4th lens,
To avoid the problem that the lens error correction located off axis is insufficient or excessive.Slow down the third lens and the 4th lens in addition, additionally aiding
The variation of mirror shape, and be conducive to that ghost is avoided to generate.
When R10/R11 meets above-mentioned condition, the space configuration of the 5th lens and the 6th lens can be balanced, so that the 5th is saturating
It is more appropriate in the spacing distance on optical axis between mirror and the 6th lens, be conducive to the assembling of lens and avoid lens shape simultaneously
Excessive distortion.In addition, the male and female face shape of the 6th lens of collocation also contributes to shortening the back focal length of optical imaging lens group, and
Correct senior aberration.
When | R12 | and | Ri | when meeting above-mentioned condition, principal point can be made to help close to the object side of optical imaging lens group
In shortening back focal length, while collocation can be suitably used for the photosensitive element of big chief ray angle can effectively shorten the total length of lens group.
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 surface
Position 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 radius
Position 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 thoroughly
Mirror, 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 thoroughly
Mirror, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens can be six single non-adhering lens.Due to
The more non-adhering lens of the technique of cemented lens are complicated, and the curved surface of high accuracy need to be especially possessed in the adhesive surface of two lens, so as to
Reach the high adaptation when bonding of two lens, and during bonding, is more likely to cause to move axis defect because of deviation, influence whole
Bulk optics image quality.Therefore, optical imaging lens group uses the configuration of six single non-adhering lens, can effectively avoid viscous
The 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 imaging
Positive 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 beam
It 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 axis
For 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 to
A 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, and
Reduce 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 axis
For 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 reinforced
Amendment, 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 axis
Place 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 borrows
This, can make the principal point (Principal Point) of optical imaging lens group far from image side end, be conducive to shorten optics overall length
Degree, 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 met
Following condition: -7.0 < R6/R7 < 0.Whereby, facilitate to balance the ability that aberration is corrected between the third lens and the 4th lens, with
Avoid 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 lens
The 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 expired
Foot 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 lens
It 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 simultaneously
Degree distortion.In addition, the male and female face shape of the 6th lens of collocation also contributes to shortening back focal length, and correct senior aberration.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 axis
Condition: CT4/CT3 < 1.15.Whereby, the third lens and the thickness of the 4th lens are more appropriate, facilitate optical imaging lens
The 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 following
Condition: 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 5th
The 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 repair
Positive 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 axis
T23, 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 the opposite sides of the third lens, avoid the third lens in assembling with it is adjacent
Lens 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 lens
The 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 excessive
The 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 position
Moving 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 lens
It is f5 away from the focal length for f4, the 5th lens, the focal length of the 6th lens is f6, and also referred to as the focal length of 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 lens
Power 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 up
Each 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 is
ImgH (i.e. the half of effective sensing region diagonal line overall length of electronics photosensitive element), can meet following condition: 0.75 < (Σ
CT/ImgH)+(ΣAT/ImgH)<1.33.Whereby, facilitate to shorten the total length of optical imaging lens group and maintain its small-sized
Change.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 axis
On spacing distance, the third lens and the 4th lens in spacing distance, the 4th lens and the 5th lens on optical axis on optical axis
Spacing 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 saturating
Mirror on optical axis thickness, the second lens on optical axis thickness, the third lens on optical axis thickness, the 4th lens are in optical axis
On 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 axis
Spacing 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 axis
Condition: 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 up
Learn 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 meeting
Column 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 side
The radius of curvature on surface is R10, can meet following condition: | R9/f |+| R10/f | < 1.85.Whereby, it helps and adds modified off-axis
Locate 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 axis
For 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 thoroughly
Mirror on optical axis thickness, the third lens on optical axis thickness, the 4th lens on optical axis thickness and the 5th lens in
Thickness on optical axis.Whereby, the 6th lens have enough structural strengths and are conducive to lens molding, avoid because of lens surface song
Rate is excessive and to be directed at qualification rate 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 thoroughly
The 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 surface
Rate 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 4th
The 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 surface
Radius 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 is
R12 can meet following condition: | R12 | < | Ri |, wherein i=1,2,3,4,5,6,7,8,9,10,11.Whereby, principal point can be made
Close 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 angle
Optical 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 lens
The 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 light
The 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 invention
It 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.Wherein
Preposition 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 at
Between image planes.If aperture is preposition aperture, the outgoing pupil (Exit Pupil) of optical imaging lens group and imaging surface can be made to generate
Longer distance makes it have telecentricity (Telecentric) effect, and the CCD or CMOS that can increase electronics photosensitive element are received
The 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 lens
For 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 with
More control variables uses the number of lens to cut down aberration, and then needed for reducing, therefore optics overall length can be effectively reduced
Degree.
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, table
Show 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 that
The 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 element
It 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 each
Between lens or after last lens, the type such as credit light diaphragm (Glare Stop) or field stop (Field of the diaphragm
Stop) 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 further
Containing 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 smart phone (as shown in figure 18), plate meter
The electronic devices such as calculation machine (as shown in figure 19), wearable device (as shown in figure 20).Preferably, electronic device can further include
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 excellent
The 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 phase
Machine, running gear, tablet computer, smart television, network monitoring device, drive recorder, reversing developing apparatus, somatic sensation television game
In the electronic devices such as machine and wearable device.Before to take off electronic device only be exemplarily to illustrate practice example of the invention,
Not limit 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 by
Left-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 used
Optical lens group (not another label) and electronics photosensitive element 190.Optical imaging lens group sequentially includes light by object side to image side
Enclose the 100, first lens 110, the second lens 120, diaphragm 101, the third lens 130, the 4th lens 140, the 5th lens 150, the
Six lens 160, infrared ray filter out filter element (IR-cut Filter) 170 and imaging surface 180.Wherein, electronics photosensitive element
190 are set on imaging surface 180.The lens (110-160) of optical imaging lens group are six, and optical imaging lens group
In 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 light
Door 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 place
One 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 extremely
A 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 light
On 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) in
Thickness 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 saturating
The 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 as
Under: 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 is
R11 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 axis
Following 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 meeting
Column 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 is
F4, 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 axis
It 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 to
The maximum effective radius position of four lens object side surfaces 141 is Sag41 in the horizontal displacement distance of optical axis, meets following item
Part: | 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, the
The focal length of four lens 140 is f4, and the focal lengths of the 5th lens 150 is f5, and the focal length of the 6th lens 160 is f6, also referred to as i-th
The 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 up
Each 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 is
ImgH 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 axis
140 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 axis
Following 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 meeting
Column 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 lens
The 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 to
The 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.This
Outside, 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 table
The 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 by
Left-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 used
Optical lens group (not another label) and electronics photosensitive element 290.Optical imaging lens group sequentially includes by object side to image side
One lens 210, aperture 200, the second lens 220, the third lens 230, the 4th lens 240, the 5th lens 250, the 6th lens
260, infrared ray filters out filter element (IR-cut Filter) 270 and imaging surface 280.Wherein, electronics photosensitive element 290 is arranged
In on imaging surface 280.The lens (210-260) of optical imaging lens group are six, and each two in optical imaging lens group
Between 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 place
One 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 extremely
A 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 light
On 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) in
Thickness 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 table
Definition 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 by
Left-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 used
Optical lens group (not another label) and electronics photosensitive element 390.Optical imaging lens group sequentially includes light by object side to image side
Enclose the 300, first lens 310, the second lens 320, the third lens 330, the 4th lens 340, the 5th lens 350, the 6th lens
360, infrared ray filters out filter element (IR-cut Filter) 370 and imaging surface 380.Wherein, electronics photosensitive element 390 is arranged
In on imaging surface 380.The lens (310-360) of optical imaging lens group are six, and each two in optical imaging lens group
Between 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 place
One 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 extremely
A 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 light
On 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) in
Thickness 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 table
Definition 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 by
Left-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 used
Optical lens group (not another label) and electronics photosensitive element 490.Optical imaging lens group sequentially includes light by object side to image side
Enclose the 400, first lens 410, the second lens 420, the third lens 430, the 4th lens 440, the 5th lens 450, the 6th lens
460, infrared ray filters out filter element (IR-cut Filter) 470 and imaging surface 480.Wherein, electronics photosensitive element 490 is arranged
In on imaging surface 480.The lens (410-460) of optical imaging lens group are six, and each two in optical imaging lens group
Between 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 place
One 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 extremely
A 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 light
On 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) in
Thickness 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 table
Definition 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 10
It 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 shooting
With optical lens group (not another label) and electronics photosensitive element 590.Optical imaging lens group sequentially includes by object side to image side
Aperture 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 element
590 are set on imaging surface 580.The lens (510-560) of optical imaging lens group are six, and optical imaging lens group
In 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 light
Door 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 place
One 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 extremely
A 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 light
On 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) in
Thickness 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 table
Definition 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, figure
12 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 photograph
As using optical lens group (not another label) and electronics photosensitive element 690.Optical imaging lens group is sequentially wrapped by object side to image side
Thoroughly 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 6th
Mirror 660, infrared ray filter out filter element (IR-cut Filter) 670 and imaging surface 680.Wherein, electronics photosensitive element 690 is set
It is placed on imaging surface 680.The lens (610-660) of optical imaging lens group are six, and each in optical imaging lens group
Between 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 place
One 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 extremely
A 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 light
On 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) in
Thickness 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 table
Definition 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, figure
14 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 photograph
As using optical lens group (not another label) and electronics photosensitive element 790.Optical imaging lens group is sequentially wrapped by object side to image side
Thoroughly 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 6th
Mirror 760, infrared ray filter out filter element (IR-cut Filter) 770 and imaging surface 780.Wherein, electronics photosensitive element 790 is set
It is placed on imaging surface 780.The lens (710-760) of optical imaging lens group are six, and each in optical imaging lens group
Between 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 place
One 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 extremely
A 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 table
Definition 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, figure
16 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 photograph
As using optical lens group (not another label) and electronics photosensitive element 890.Optical imaging lens group is sequentially wrapped by object side to image side
Thoroughly 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 6th
Mirror 860, infrared ray filter out filter element (IR-cut Filter) 870 and imaging surface 880.Wherein, electronics photosensitive element 890 is set
It is placed on imaging surface 880.The lens (810-860) of optical imaging lens group are six, and each in optical imaging lens group
Between 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 place
One 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 extremely
A 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 table
Definition 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 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 optical imaging lens group, which is characterized in that sequentially include by object side to image side:
One first lens, have positive refracting power, and object side surface is convex surface at dipped beam axis；
One second lens；
One the third lens, object side surface are convex surface at dipped beam axis, and image side surface is concave surface at dipped beam axis；
One the 4th lens, have negative refracting power, and object side surface is concave surface at dipped beam axis；
One the 5th lens, image side surface are concave surface at dipped beam axis；And
One the 6th lens, object side surface are convex surface at dipped beam axis, and image side surface is concave surface, image side table at dipped beam axis
Face has an at least convex surface at from optical axis, and object side surface is all aspherical with image side surface；
Wherein, the lens sum of the optical imaging lens group is six, and the radius of curvature of the first lens object side surface is R1,
The radius of curvature on the first lens image side surface is R2, and the radius of curvature of the second lens object side surface is R3, second lens
The radius of curvature on image side surface is R4, and the radius of curvature of the third lens object side surface is R5, the third lens image side surface
Radius of curvature is R6, and the radius of curvature of the 4th lens object side surface is R7, and the radius of curvature on the 4th lens image side surface is
R8, the radius of curvature of the 5th lens object side surface are R9, and the radius of curvature on the 5th lens image side surface is R10, the 6th
The radius of curvature of lens object side surface is R11, and the radius of curvature on the 6th lens image side surface is R12, meets following condition:
-7.0<R6/R7<0；
0<R10/R11<2.0；And
| R12 | < | Ri |, wherein i=1,2,3,4,5,6,7,8,9,10,11.
2. optical imaging lens group as described in claim 1, which is characterized in that each two-phase in the optical imaging lens group
Between adjacent lens on optical axis all have a air gap.
3. optical imaging lens group as described in claim 1, which is characterized in that the first lens image side surface is in dipped beam axis
Place is concave surface.
4. optical imaging lens group as described in claim 1, which is characterized in that the second lens object side surface is in dipped beam axis
Place is convex surface.
5. optical imaging lens group as described in claim 1, which is characterized in that second lens have negative refracting power, should
Second lens image side surface is concave surface at dipped beam axis, and the 6th lens have negative refracting power.
6. optical imaging lens group as described in claim 1, which is characterized in that the third lens on optical axis with a thickness of
CT3, the 4th lens are in, with a thickness of CT4, meeting following condition on optical axis:
CT4/CT3<1.15。
7. optical imaging lens group as described in claim 1, which is characterized in that the focal length of the third lens is f3, this
The focal length of four lens is f4, meets following condition:
-1.0<f3/f4<0。
8. optical imaging lens group as described in claim 1, which is characterized in that the focal length of the optical imaging lens group is
The radius of curvature of f, the third lens image side surface are R6, meet following condition:
0<R6/f<2.5。
9. optical imaging lens group as described in claim 1, which is characterized in that the focal length of the optical imaging lens group is
F, the focal length of the third lens are f3, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, the 6th lens
Focal length is f6, meets following condition:
|f/f3|+|f/f4|+|f/f5|+|f/f6|<1.0。
10. optical imaging lens group as described in claim 1, which is characterized in that the third lens are in the thickness on optical axis
For CT3, second lens and the third lens in the spacing distance on optical axis be T23, the third lens and the 4th lens in
Spacing distance on optical axis is T34, meets following condition:
CT3/(T23+T34)<0.75。
11. optical imaging lens group as described in claim 1, which is characterized in that the 4th lens are in the thickness on optical axis
For CT4, the maximum effective radius position of intersection point of the 4th lens object side surface on optical axis to the 4th lens object side surface
It is Sag41 in the horizontal displacement distance of optical axis, meets following condition:
|Sag41|/CT4<1.10。
12. optical imaging lens group as described in claim 1, which is characterized in that the third lens image side surface is in off-axis
There is an at least concave surface to switch to the variation that convex surface switchs to concave surface again at place.
13. optical imaging lens group as described in claim 1, which is characterized in that the focal length of first lens is f1, this
The focal length of two lens is f2, and the focal length 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, the focal length of the 6th lens are f6, and the also referred to as focal length of i-th lens is fi, meet following condition:
Σ (f1/ | fi |) < 1.75, wherein i=2,3,4,5,6.
14. optical imaging lens group as described in claim 1, which is characterized in that each two in the optical imaging lens group
Adjacent lens are Σ AT in the summation of the spacing distance on optical axis, and each lens are in the lens of optical axis in the optical imaging lens group
The summation of thickness is Σ CT, and the maximum image height of the optical imaging lens group is ImgH, meets following condition:
0.75<(ΣCT/ImgH)+(ΣAT/ImgH)<1.33。
15. optical imaging lens group as described in claim 1, which is characterized in that second lens and the third lens in
Spacing distance on optical axis be T23, the third lens and the 4th lens in the spacing distance on optical axis be T34, under meeting
Column condition:
T23/T34<1.5。
16. optical imaging lens group as described in claim 1, which is characterized in that the 5th lens are in the thickness on optical axis
For CT5, the 6th lens are in, with a thickness of CT6, meeting following condition on optical axis:
CT5/CT6<0.95。
17. optical imaging lens group as described in claim 1, which is characterized in that the focal length of the optical imaging lens group
Radius of curvature for f, the 5th lens image side surface is R10, meets following condition:
0<R10/f<1.0。
18. optical imaging lens group as described in claim 1, which is characterized in that the focal length of the optical imaging lens group
For f, the radius of curvature of the 5th lens object side surface is R9, and the radius of curvature on the 5th lens image side surface is R10, is met
Following condition:
|R9/f|+|R10/f|<1.85。
19. optical imaging lens group as described in claim 1, which is characterized in that each lens of optical imaging lens group
In the thickness on optical axis, the 6th lens on optical axis with a thickness of maximum value.
20. optical imaging lens group as described in claim 1, which is characterized in that the third lens are in the thickness on optical axis
For CT3, the maximum effective radius position of the intersection point of the third lens image side surface on optical axis to the third lens image side surface
It is Sag32 in the horizontal displacement distance of optical axis, meets following condition:
|Sag32|/CT3<0.15。
21. a kind of image-taking device, characterized by comprising:
Optical imaging lens group as described in claim 1；And
One electronics photosensitive element, wherein the electronics photosensitive element is set on an imaging surface of the optical imaging lens group.
22. a kind of electronic device, characterized by comprising:
Image-taking device as claimed in claim 21.
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| CN201910006285.2A CN109669254B (en) | 2016-01-29 | 2016-01-29 | Optical lens group for imaging, imaging device and electronic device |
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| CN201610064860.0A CN107024756B (en) | 2016-01-29 | 2016-01-29 | Optical lens assembly for camera shooting, image capturing device and electronic device |
| CN201910006285.2A CN109669254B (en) | 2016-01-29 | 2016-01-29 | Optical lens group for imaging, imaging device and electronic device |
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Also Published As
| Publication number | Publication date |
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| CN109669254B (en) | 2020-11-06 |
| CN107024756A (en) | 2017-08-08 |
| CN109581628B (en) | 2020-11-06 |
| CN107024756B (en) | 2019-01-29 |
| CN109581628A (en) | 2019-04-05 |
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