CN107024756A - Optical imaging lens group, image-taking device and electronic installation - Google Patents
Optical imaging lens group, image-taking device and electronic installation Download PDFInfo
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- CN107024756A CN107024756A CN201610064860.0A CN201610064860A CN107024756A CN 107024756 A CN107024756 A CN 107024756A CN 201610064860 A CN201610064860 A CN 201610064860A CN 107024756 A CN107024756 A CN 107024756A
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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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Abstract
The invention discloses a kind of optical imaging lens group, the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens are sequentially included by thing side to image side.It is convex surface that first lens, which have at positive refracting power, its thing side surface dipped beam axle,.It is for concave surface at convex surface, its image side surface dipped beam axle that 3rd lens, which have at positive refracting power, its thing side surface dipped beam axle,.It is convex surface at concave surface, its image side surface dipped beam axle to be at the negative refracting power of 4th lens tool, its thing side surface dipped beam axle.It is concave surface at 5th lens image side surface dipped beam axle.It is concave surface at convex surface, its image side surface dipped beam axle to be at 6th lens thing side surface dipped beam axle, and its image side surface at optical axis from having convex surface, and its two surface is aspherical.The lens of optical imaging lens group are to be respectively provided with the air gap in optical axis between six, and each two adjacent lens.Invention additionally discloses the image-taking device with above-mentioned optical imaging lens group and the electronic installation with image-taking device.
Description
Technical field
The present invention is, on a kind of optical imaging lens group, image-taking device and electronic installation, to be particularly one kind
Suitable for the optical imaging lens group and image-taking device of electronic installation.
Background technology
In recent years, flourishing with miniaturization phtographic lens, the demand of minisize image acquisition module is increasingly improved,
And progressing greatly with semiconductor process technique so that the Pixel Dimensions of photo-sensitive cell reduce, along with electric now
Sub- product is using the good and compact external form of function as development trend, therefore, possesses the small of good image quality
Type phtographic lens becomes main flow in the market.
Due to the high standard running gear such as high-order intelligent mobile phone, Wearable device and tablet PC in recent years
Develop towards lightening direction, more drive requirement lifting of the pick-up lens in miniaturization, conventional lenses are matched somebody with somebody
The optical system put has been difficult to while meeting the demand of large aperture and short overall length.Therefore it provides can apply to
High-order electronic installation and the high imaging quality miniaturized optical system with large aperture and short overall length feature,
One of the problem of actually current industry is to be solved.
The content of the invention
The present invention provides a kind of optical imaging lens group, image-taking device and electronic installation, wherein shooting is used
The lens of optical lens group are six.Wherein, the 3rd lens have positive refracting power, and its thing side surface is in dipped beam
It is convex surface at axle, its image side surface is concave surface at dipped beam axle, marginal aberration that can be effectively at modified off-axis.
In addition, the 4th lens have a negative refracting power, its thing side surface is concave surface at dipped beam axle, its image side surface in
It is convex surface at dipped beam axle, configuring the collocation of the 3rd lens and the 4th lens helps further to correct aberration.
When a specific condition is satisfied, contribute to balance the ability that aberration is corrected between the 3rd lens and the 4th lens, with
Avoid the lens error correction located off axis not enough or excessively the problem of；Slow down the 3rd lens and in addition, additionally aiding
The change of the mirror shape of four lens, and be conducive to avoiding ghost from producing.In addition, can balance the 5th lens with
The space configuration of 6th lens, so that between the 5th lens and the 6th lens in the spacing distance on optical axis more
Suitably, be conducive to the assembling of lens and while avoid lens shape excessive distortion.In addition, the 6th lens of collocation
Male and female face shape also contribute to shorten back focal length, and correct higher order aberratons.In summary, the present invention is carried
The optical imaging lens group of confession 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 thing side to image side sequentially comprising the first lens, the
Two lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens.First lens have positive refracting power,
Its thing side surface is convex surface at dipped beam axle.3rd lens have positive refracting power, and its thing side surface is in dipped beam axle
Locate as convex surface, its image side surface is concave surface at dipped beam axle.4th lens have negative refracting power, its thing side table
Face is concave surface at dipped beam axle, and its image side surface is convex surface at dipped beam axle.5th lens image side surface is near
It is concave surface at optical axis.6th lens thing side surface is convex surface at dipped beam axle, and its image side surface is at dipped beam axle
For concave surface, its image side surface has an at least convex surface at from optical axis, and its thing side surface is all with image side surface
It is aspherical.The lens of optical imaging lens group are six.Each two adjacent lens in optical imaging lens group
Between on optical axis all have a air gap.The radius of curvature of 3rd lens image side surface is R6, the 4th
The radius of curvature of lens thing side surface is R7, and the radius of curvature on the 5th lens image side surface is R10, the 6th
The radius of curvature of lens thing side surface is R11, and it meets following condition：
-7.0<R6/R7<0；And
0<R10/R11<2.0。
The present invention separately provides a kind of image-taking device, and it includes foregoing optical imaging lens group and a sense electronicses
Optical element, wherein, electronics photo-sensitive cell is arranged on the imaging surface of optical imaging lens group.
The present invention separately provides a kind of electronic installation, and it includes foregoing image-taking device.
When R6/R7 meets above-mentioned condition, contribute between the 3rd lens of balance and the 4th lens to correct aberration
Ability, with avoid the lens error correction located off axis not enough or excessively the problem of.Slow down in addition, additionally aiding
The change of the mirror shape of three lens and the 4th lens, and be conducive to avoiding ghost from producing.
When R10/R11 meets above-mentioned condition, the space configuration of the 5th lens and the 6th lens can be balanced, with
It is more appropriate in the spacing distance on optical axis between the 5th lens and the 6th lens to make, and is conducive to the assembling of lens
And lens shape excessive distortion is avoided simultaneously.In addition, the male and female face shape of the 6th lens of collocation also contributes to shorten
The back focal length of optical imaging lens group, and correct higher order aberratons.
Brief description of the drawings
Fig. 1 illustrates the image-taking device schematic diagram according to first embodiment of the invention.
Fig. 2 is sequentially spherical aberration, astigmatism and the distortion curve figure of first embodiment from left to right.
Fig. 3 illustrates the image-taking device schematic diagram according to second embodiment of the invention.
Fig. 4 is sequentially spherical aberration, astigmatism and the distortion curve figure of second embodiment from left to right.
Fig. 5 illustrates the image-taking device schematic diagram according to third embodiment of the invention.
Fig. 6 is sequentially spherical aberration, astigmatism and the distortion curve figure of 3rd embodiment from left to right.
Fig. 7 illustrates the image-taking device schematic diagram according to fourth embodiment of the invention.
Fig. 8 is sequentially spherical aberration, astigmatism and the distortion curve figure of fourth embodiment from left to right.
Fig. 9 illustrates the image-taking device schematic diagram according to fifth embodiment of the invention.
Figure 10 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 5th embodiment from left to right.
Figure 11 illustrates the image-taking device schematic diagram according to sixth embodiment of the invention.
Figure 12 is sequentially spherical aberration, astigmatism and the distortion curve figure of sixth embodiment from left to right.
Figure 13 illustrates the image-taking device schematic diagram according to seventh embodiment of the invention.
Figure 14 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 7th embodiment from left to right.
Figure 15 illustrates the image-taking device schematic diagram according to eighth embodiment of the invention.
Figure 16 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 8th embodiment from left to right.
Figure 17 illustrates the schematic diagram according to parameter Sag32, Sag41 in first embodiment of the invention.
Figure 18 illustrates a kind of schematic diagram of electronic installation according to the present invention.
Figure 19 illustrates the schematic diagram of another electronic installation according to the present invention.
Figure 20 illustrates the schematic diagram of still another electronic installation according to the present invention.
Wherein, 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
Thing 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
Thing 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
Thing 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
Thing 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
Thing 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
Thing 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 photo-sensitive cell ︰ 190,290,390,490,590,690,790,890
The lens of CT3 ︰ the 3rd are in the thickness on optical axis
The lens of CT4 ︰ the 4th are in the thickness on optical axis
CT5：5th lens are in the thickness on optical axis
CT6：6th lens are in the thickness on optical axis
The f-number of Fno ︰ optical imaging lens groups
f：The focal length of optical imaging lens group
f1：The focal length of first lens
f2：The focal length of second lens
f3：The focal length of 3rd lens
f4：The focal length of 4th lens
f5：The focal length of 5th lens
f6：The focal length of 6th lens
The half at maximum visual angle in HFOV ︰ optical imaging lens groups
ImgH：The maximum image height of optical imaging lens group
R1：The radius of curvature of first lens thing side surface
R2：The radius of curvature of first lens image side surface
R3：The radius of curvature of second lens thing side surface
R4：The radius of curvature of second lens image side surface
R5：The radius of curvature of 3rd lens thing side surface
The radius of curvature on the lens image side surfaces of R6 ︰ the 3rd
The radius of curvature of the lens thing side surfaces of R7 ︰ the 4th
R8：The radius of curvature of 4th lens image side surface
R9：The radius of curvature of 5th lens thing side surface
The radius of curvature on the lens image side surfaces of R10 ︰ the 5th
The radius of curvature of the lens thing side surfaces of R11 ︰ the 6th
R12：The radius of curvature of 6th lens image side surface
Sag32：Intersection point of 3rd lens image side surface on optical axis to the maximum on the 3rd lens image side surface has
Radial location is imitated in the horizontal displacement distance of optical axis
Sag41：Intersection point of the 4th lens thing side surface on optical axis to the maximum of the 4th lens thing side surface has
Radial location is imitated in the horizontal displacement distance of optical axis
T23：Second lens and the 3rd lens are in the spacing distance on optical axis
T34：3rd lens and the 4th lens are in the spacing distance on optical axis
ΣAT：Each two adjacent lens are in the summation of the spacing distance on optical axis in optical imaging lens group
ΣCT：Each lens are in the summation of the lens thickness of optical axis in optical imaging lens group
Embodiment
Optical imaging lens group by thing side to image side sequentially comprising the first lens, the second lens, the 3rd lens,
4th lens, the 5th lens and the 6th lens.Wherein, the lens of optical imaging lens group are six altogether.
In being respectively provided with a air gap, Yi Ji on optical axis between each two adjacent lens in optical imaging lens group
One lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens can be six lists
One non-bonding lens.Because the more non-bonding lens of the technique for binding lens are complicated, particularly in the glutinous of two lens
Conjunction face need to possess the curved surface of high accuracy, to reach the high adaptation during bonding of two lens, and in the mistake of bonding
Cheng Zhong, more likely because off normal and caused by move axle defect, the overall quality of optical imaging of influence.Therefore, shooting is used
Optical lens group using six it is single it is non-bonding lens configurations, can be prevented effectively from bonding lens produced by ask
Topic.
First lens have positive refracting power, and its thing side surface is convex surface at dipped beam axle.Whereby, it is possible to provide take the photograph
As with the positive refracting power needed for optical lens group, being conducive to shortening optics total length.
Second lens can have negative refracting power, and its thing side surface can be convex surface, its image side surface at dipped beam axle
Can be concave surface at dipped beam axle.Whereby, effectively the aberration produced by the first lens can be maked corrections.
3rd lens have positive refracting power, and its thing side surface is convex surface at dipped beam axle, and its image side surface is near
It is concave surface at optical axis.Whereby, marginal aberration that can be effectively at modified off-axis.In addition, the 3rd lens image side table
Face can have an at least concave surface to switch to the change that convex surface switchs to concave surface again in off-axis place.Specifically, the 3rd is saturating
Mirror image side surface, to off-axis place, can sequentially have the wave that concave surface, convex surface and concave surface are constituted from dipped beam axle
Shape.Whereby, marginal ray specific refraction angle can be avoided too big, and reduce the generation of coma.
4th lens have negative refracting power, and its thing side surface is concave surface at dipped beam axle, and its image side surface is near
It is convex surface at optical axis.Whereby, the collocation configuration of the 3rd lens and the 4th lens helps further to correct aberration.
5th lens can have positive refracting power, and its image side surface is concave surface at dipped beam axle.Whereby, can be effective
Strengthen the amendment of astigmatism, and the angle that the light of off-axis visual field is incident on photo-sensitive cell can be suppressed, make photosensitive
The response efficiency lifting of element, the aberration of further modified off-axis visual field.
6th lens can have a negative refracting power, and its thing side surface is convex surface at dipped beam axle, its image side surface in
It is concave surface at dipped beam axle, its image side surface has an at least convex surface, its thing side surface and image side at from optical axis
Surface is all aspherical.Whereby, the principal point (Principal Point) of optical imaging lens group can be made away from picture
Side, is conducive to shortening optics total length, in favor of the miniaturization of optical imaging lens group.
The radius of curvature of 3rd lens image side surface is R6, and the radius of curvature of the 4th lens thing side surface is R7,
It meets following condition：-7.0<R6/R7<0.Whereby, contribute to balance the 3rd lens and the 4th lens it
Between correct the ability of aberration, with avoid the lens error correction located off axis not enough or excessively the problem of.In addition, also having
Help slow down the change of the mirror shape of the 3rd lens and the 4th lens, and be conducive to avoiding 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 thing side surface is
R11, it meets following condition：0<R10/R11<2.0.Whereby, the 5th lens can be balanced and the 6th saturating
The space configuration of mirror, so that it is more appropriate in the spacing distance on optical axis between the 5th lens and the 6th lens,
Be conducive to the assembling of lens and while avoid lens shape excessive distortion.In addition, the convex-concave of the 6th lens of collocation
Face shape also contributes to shorten back focal length, and corrects higher order aberratons.It is preferred that it can further meet following
Condition：0.35<R10/R11<1.85.More preferably, it can further meet following condition：0.50<
R10/R11<1.50。
3rd lens are CT3 in the thickness on optical axis, and the 4th lens are CT4 in the thickness on optical axis, and it can
Meet following condition：CT4/CT3<1.15.Whereby, the thickness of the 3rd lens and the 4th lens is more suitable,
Contribute to assembling and the space configuration of optical imaging lens group.
The focal length of 3rd lens is f3, and the focal length of the 4th lens is f4, and it can meet following condition：-1.0<
f3/f4<0.Whereby, the susceptibility of optical imaging lens group can be effectively reduced, further lifting imaging matter
Amount.
The focal length of optical imaging lens group is f, and the radius of curvature on the 3rd lens image side surface is R6, and it can
Meet following condition：0<R6/f<2.5.Whereby, the configuration of the surface relief face shape of the 3rd lens two is contributed to,
To correct Petzval sum (Petzval sum), make imaging surface more flat.
The focal length of optical imaging lens group is f, and the focal length of the 3rd lens is f3, and the focal length of the 4th lens is
F4, the focal length of the 5th lens is f5, and the focal length of the 6th lens is f6, and it can meet following condition：
|f/f3|+|f/f4|+|f/f5|+|f/f6|<1.0.Whereby, contribute to balance the refracting power of each lens, to avoid because thoroughly
Mirror refracting power is excessive, and causes to locate the problem of lens error correction is not enough or excessive off axis.In addition, additionally aiding gradually
Delay susceptibility of each lens for manufacturing tolerances such as mirror surface accuracies.
3rd lens are CT3 in the thickness on optical axis, and the second lens are with the 3rd lens in the interval on optical axis
Distance is T23, and the 3rd lens and the 4th lens are T34 in the spacing distance on optical axis, and it can meet following
Condition：CT3/(T23+T34)<0.75.Whereby, contribute to the relative two sides configuration in the 3rd lens enough
Space, it is to avoid the 3rd lens produce interference in assembling with adjacent lens.
4th lens are CT4, intersection point of the 4th lens thing side surface on optical axis to the in the thickness on optical axis
The maximum effective radius position of four lens thing side surfaces is Sag41 in the horizontal displacement distance of optical axis, and it can expire
Foot row condition：|Sag41|/CT4<1.10.Whereby, contribute to the structural strength of the 4th lens of reinforcement, keep away
Exempt from assembling when because lens curvature is excessive and caused by rupture doubt.Figure 17 is refer to, is illustrated according to this hair
The parameter Sag41 of bright first embodiment schematic diagram.Above-mentioned horizontal displacement distance towards image side direction, then determine by its value
Justice is just, to be defined as bearing towards thing side to then its value.
The focal length of first lens is f1, and the focal length of the second lens is f2, and the focal length of the 3rd lens is f3, the
The focal length of four lens is f4, and the focal length of the 5th lens is f5, and the focal length of the 6th lens is f6, can also be represented
It is fi for the focal length of i-th lens, it can meet following condition：Σ(f1/|fi|)<1.75, wherein i=2,3,
4、5、6.Whereby, the refracting power for balancing each lens is contributed to configure, it is to avoid aberration over-correction.
In optical imaging lens group each two adjacent lens in the spacing distance on optical axis summation be Σ AT,
In optical imaging lens group each lens in the lens thickness of optical axis summation be Σ CT, optical imaging lens
The maximum image height of group is ImgH (i.e. the one of effective sensing region diagonal overall length of electronics photo-sensitive cell
Half), it can meet following condition：0.75<(ΣCT/ImgH)+(ΣAT/ImgH)<1.33.Whereby, help
It is maintained to minimize in the total length for shortening optical imaging lens group.Wherein, Σ AT are first saturating
Mirror and the second lens are in the spacing distance on optical axis, the second lens and the 3rd lens in the spacer on optical axis
From, the 3rd lens and the 4th lens in the spacing distance on optical axis, the 4th lens and the 5th lens 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
As the first lens are in the thickness on optical axis, the second lens in the thickness on optical axis, the 3rd lens on optical axis
Thickness, the 4th lens in the thickness on optical axis, the 5th lens in the thickness on optical axis and the 6th lens in
The summation of thickness on optical axis.
Second lens and the 3rd lens are T23 in the spacing distance on optical axis, the 3rd lens and the 4th lens in
Spacing distance on optical axis is T34, and it can meet following condition：T23/T34<1.5.Whereby, the 3rd is saturating
The position configuration of mirror is more particularly suitable, is conducive to the miniaturization of optical imaging lens group.
5th lens are CT5 in the thickness on optical axis, and the 6th lens are CT6 in the thickness on optical axis, and it can
Meet following condition：CT5/CT6<0.95.Whereby, the thickness of the 5th lens and the 6th lens can suitably be allocated
Degree, helps to shorten the back focal length of optical imaging 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, its
Following condition can be met：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 thing side surface is R9, the 5th
The radius of curvature on lens image side surface is R10, and it can meet following condition：|R9/f|+|R10/f|<1.85.
Whereby, the image curvature for adding image periphery at modified off-axis is helped.
Each lens of optical imaging lens group are among the thickness on optical axis, and the 6th lens are in the thickness on optical axis
Degree can be maximum.That is, the 6th lens can be more than the first lens in light in the thickness on optical axis
Thickness, the second lens on axle are in the thickness on optical axis, the 3rd lens in the thickness on optical axis, the 4th lens
In the thickness on optical axis and the 5th lens in the thickness on optical axis.Whereby, the 6th lens have enough knots
Structure intensity and be conducive to lens to be molded, it is to avoid because lens surface curvature is excessive, to be directed at yield too low, and enters one
Step contributes to increase assembling success rate.
The radius of curvature of first lens thing side surface is R1, and the radius of curvature on the first lens image side surface is R2,
The radius of curvature of second lens thing side surface is R3, and the radius of curvature on the second lens image side surface is R4, the
The radius of curvature of three lens thing side surfaces is R5, and the radius of curvature on the 3rd lens image side surface is R6, the 4th
The radius of curvature of lens thing side surface is R7, and the radius of curvature on the 4th lens image side surface is R8, and the 5th is saturating
The radius of curvature of mirror thing side surface is R9, and the radius of curvature on the 5th lens image side surface is R10, and the 6th is saturating
The radius of curvature of mirror thing side surface is R11, and the radius of curvature on the 6th lens image side surface is R12, and it can expire
Foot row 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 thing side of optical imaging lens group, help to shorten back focal length, while collocation can be fitted
Photo-sensitive cell for big key light line angle can effectively shorten the total length of lens group.
3rd lens are CT3, intersection point of the 3rd lens image side surface on optical axis to the in the thickness on optical axis
The maximum effective radius position of three lens image sides surface is Sag32 in the horizontal displacement distance of optical axis, and it can expire
Foot row condition：|Sag32|/CT3<0.15.Whereby, be conducive to slowing down the 3rd lens image side surface in off-axis
The curvature at place, can avoid incident light from producing reflection at the off-axis place on the 3rd lens image side surface.It refer to figure
17, illustrate the schematic diagram according to parameter Sag32 in first embodiment of the invention.Above-mentioned horizontal displacement is apart from court
Then its value is defined as just, being defined as bearing towards thing side to then its value in image side direction.
The invention discloses optical imaging lens group in, the configuration of aperture can for preposition aperture or in put light
Circle.Wherein preposition aperture implies that aperture is arranged between object and the first lens, in put aperture and then represent aperture
It is arranged between the first lens and imaging surface.If aperture is preposition aperture, going out for optical imaging lens group can be made
Penetrate pupil (Exit Pupil) and produce longer distance with imaging surface, make it have telecentricity (Telecentric) effect, and
The CCD or CMOS that electronics photo-sensitive cell can be increased receive the efficiency of image；If in put aperture, help
In the angle of visual field for expanding 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.Work as lens
Material be glass, can increase refracting power configuration the free degree., then can be with separately when lens material is plastics
Effectively reduce production cost.In addition, can be aspherical to hold in being set on lens surface aspherical (ASP)
The shape beyond sphere is easily fabricated to, more control variable is obtained, to cut down aberration, and then reduces institute
The number of lens need to be used, therefore can effectively reduce optics total length.
The invention discloses optical imaging lens group in, if lens surface be convex surface and do not define the convex surface position
When putting, then it represents that the convex surface can be located at lens surface dipped beam axle；If lens surface is concave surface and does not define this
During the position of concave surface, then it represents that the concave surface can be located at lens surface dipped beam axle.If the refracting power or focal length of lens
When not defining its regional location, then it represents that it is in the wrong at dipped beam axle that the refracting power or focal length of the lens can be lens
Roll over power or focal length.
The invention discloses optical imaging lens group in, imaging surface according to its corresponding electronics photo-sensitive cell not
Together, for a plane or can have the curved surface of any curvature, particularly relate to concave surface towards toward thing side to curved surface.
In optical imaging lens group of the present invention, settable to have an at least diaphragm, its position can be in the first lens
Before, between each lens or after last lens, the species such as light diaphragm (Glare Stop) of shining of the diaphragm
Or field stop (Field Stop) etc., it can be used to reduce veiling glare, help to lift the quality of image.
The present invention more provides a kind of image-taking device, and it is photosensitive comprising foregoing optical imaging lens group and electronics
Element, wherein electronics photo-sensitive cell are arranged on the imaging surface of optical imaging lens group.It is preferred that this takes
As device can further include lens barrel, support device (Holder Member) or its combination.
Figure 18,19 and 20 are refer to, image-taking device 10 many-sided can be applied to intelligent mobile phone (such as Figure 18
It is shown), tablet PC (as shown in figure 19), the electronic installation such as Wearable device (as shown in figure 20).Compared with
Goodly, electronic installation can further include control unit, display unit, storage element, random access memory
Unit (RAM) or its combination.
The more visual demand of optical imaging lens group of the present invention is applied in the optical system of mobile focusing, and
Have the characteristic of excellent lens error correction and good image quality concurrently.The present invention many-sided can be also applied to three-dimensional (3D)
Image capture, digital still camera, running gear, tablet PC, intelligent electric are regarded, network monitoring device,
In the electronic installations such as drive recorder, reversing developing apparatus, somatic sensation television game machine and Wearable device.Before take off electricity
Sub-device is only the practice example for exemplarily illustrating the present invention, not limits the image-taking device of the present invention
Operation strategies.
According to above-mentioned embodiment, specific embodiment set forth below simultaneously coordinates schema to be described in detail.
<First embodiment>
Fig. 1 and Fig. 2 is refer to, wherein Fig. 1 illustrates the image-taking device signal according to first embodiment of the invention
Figure, Fig. 2 is sequentially spherical aberration, astigmatism and the distortion curve figure of first embodiment from left to right.By Fig. 1
Understand, image-taking device includes optical imaging lens group (not another label) and electronics photo-sensitive cell 190.Shooting
With optical lens group by thing side to image side sequentially comprising aperture 100, the first lens 110, the second lens 120,
It is diaphragm 101, the 3rd lens 130, the 4th lens 140, the 5th lens 150, the 6th lens 160, infrared
Line filters out filter element (IR-cut Filter) 170 and imaging surface 180.Wherein, electronics photo-sensitive cell 190 is set
It is placed on imaging surface 180.The lens (110-160) of optical imaging lens group are six, and optical imaging
In lens group between each two adjacent lens on optical axis all have a air gap.In addition, diaphragm 101 can be with
It is credit light diaphragm or field stop.
First lens 110 have positive refracting power, and are plastic material, and its thing side surface 111 is at dipped beam axle
For convex surface, its image side surface 112 is concave surface at dipped beam axle, and its two surface is all aspherical.
Second lens 120 have negative refracting power, and are plastic material, and its thing side surface 121 is at dipped beam axle
For convex surface, its image side surface 122 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 130 have positive refracting power, and are plastic material, and its thing side surface 131 is at dipped beam axle
For convex surface, its image side surface 132 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 132 in off-axis place there is an at least concave surface to switch to the change that convex surface switchs to concave surface again.
4th lens 140 have negative refracting power, and are plastic material, and its thing side surface 141 is at dipped beam axle
For concave surface, its image side surface 142 is convex surface at dipped beam axle, and its two surface is all aspherical.
5th lens 150 have negative refracting power, and are plastic material, and its thing side surface 151 is at dipped beam axle
For convex surface, its image side surface 152 is concave surface at dipped beam axle, and its two surface is all aspherical.
6th lens 160 have positive refracting power, and are plastic material, and its thing side surface 161 is at dipped beam axle
For convex surface, its image side surface 162 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 162 has an at least convex surface at from optical axis.
Each lens of the optical imaging lens group of the present embodiment are among the thickness on optical axis, the 6th lens
160 be maximum in the thickness on optical axis.That is, the 6th lens 160 are more than in the thickness on optical axis
Other lenses (110-150) are in the thickness on optical axis.
The material that infrared ray filters out filter element 170 is glass, and it is arranged at the 6th lens 160 and imaging surface
Between 180, the focal length of optical imaging lens group is had no effect on.
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, shooting
With one that the f-number (F-number) of optical lens group is maximum visual angle in Fno, optical imaging lens group
Half is HFOV, and its numerical value is as follows：F=3.79 millimeters (mm), Fno=2.25, HFOV=40.1 degree (deg.).
The radius of curvature of 3rd lens image side surface 132 is R6, the curvature of the 4th lens thing side surface 141
Radius is R7, and it meets following condition：R6/R7=-0.83.
The radius of curvature of 5th lens image side surface 152 is R10, the curvature of the 6th lens thing side surface 161
Radius is R11, and it meets following condition：R10/R11=1.66.
3rd lens 130 are CT3 in the thickness on optical axis, and the 4th lens 140 are in the thickness on optical axis
CT4, it meets following condition：CT4/CT3=0.83.
The focal length of 3rd lens 130 is f3, and the focal length of the 4th lens 140 is f4, and it meets following condition：
F3/f4=-0.34.
The focal length of optical imaging lens group is f, and the radius of curvature on the 3rd lens image side surface 132 is R6,
It meets following condition：R6/f=3.04.
The focal length of optical imaging lens group is f, and the focal length of the 3rd lens 130 is f3, the 4th lens 140
Focal length be f4, the focal lengths of the 5th lens 150 is f5, and the focal length of the 6th lens 160 is f6, and it meets
Following condition：| f/f3 |+| f/f4 |+| f/f5 |+| f/f6 |=0.54.
3rd lens 130 are CT3 in the thickness on optical axis, and the second lens 120 and the 3rd lens 130 are in light
Spacing distance on axle is T23, and the 3rd lens 130 are in the spacing distance on optical axis with the 4th lens 140
T34, it meets following condition：CT3/ (T23+T34)=0.49.
4th lens 140 are CT4 in the thickness on optical axis, and the 4th lens thing side surface 141 is on optical axis
Intersection point to the maximum effective radius position of the 4th lens thing side surface 141 in the horizontal displacement distance of optical axis is
Sag41, it meets following condition：| Sag41 |/CT4=0.78.
The focal length of first lens 110 is f1, and the focal length of the second lens 120 is f2, the 3rd lens 130
Focal length is f3, and the focal length of the 4th lens 140 is f4, and the focal length of the 5th lens 150 is f5, the 6th lens
160 focal length is f6, and the focal length for being also denoted as the i-th lens is fi, and it meets following condition：Σ(f1/|fi|)
=1.03, wherein i=2,3,4,5,6.
In optical imaging lens group each two adjacent lens in the spacing distance on optical axis summation be Σ AT,
In optical imaging lens group each lens in the lens thickness of optical axis summation be Σ CT, optical imaging lens
The maximum image height of group is ImgH, and it meets following condition：(Σ CT/ImgH)+(Σ AT/ImgH)=
1.06。
Second lens 120 and the 3rd lens 130 are T23, the 3rd lens 130 in the spacing distance on optical axis
With the 4th lens 140 in the spacing distance on optical axis be T34, it meets following condition：T23/T34=0.49.
5th lens 150 are CT5 in the thickness on optical axis, and the 6th lens 160 are in the thickness on optical axis
CT6, it meets 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,
It meets following condition：R10/f=0.60.
The focal length of optical imaging lens group is f, and the radius of curvature of the 5th lens thing side surface 151 is R9,
The radius of curvature of 5th lens image side surface 152 is R10, and it meets following condition：| R9/f |+| R10/f |=
1.30。
3rd lens 130 are CT3 in the thickness on optical axis, and the 3rd lens image side surface 132 is on optical axis
Intersection point to the 3rd lens image side surface 132 maximum effective radius position in optical axis level shifts from for
Sag32, it meets following condition：| Sag32 |/CT3=0.06.
Coordinate with reference to following table one and table two.
Table one is the detailed structured data of Fig. 1 first embodiments, wherein radius of curvature, thickness
And the unit of focal length is millimeter (mm), and surface 0 to 16 sequentially represented by thing side to image side
Surface.Table two is the aspherical surface data in first embodiment, wherein, k is in aspheric curve equation
Conical surface coefficient, A4 to A16 then represents each rank asphericity coefficient of surface the 4 to 16th.In addition, following
Each embodiment form be data in the schematic diagram and aberration curve figure of each embodiment of correspondence, form definition all with
The definition of the table one and table two of first embodiment is identical, and not in this to go forth.
<Second embodiment>
Fig. 3 and Fig. 4 is refer to, wherein Fig. 3 illustrates the image-taking device signal according to second embodiment of the invention
Figure, Fig. 4 is sequentially spherical aberration, astigmatism and the distortion curve figure of second embodiment from left to right.By Fig. 3
Understand, image-taking device includes optical imaging lens group (not another label) and electronics photo-sensitive cell 290.Shooting
With optical lens group by thing side to image side sequentially comprising the first lens 210, aperture 200, the second lens 220,
3rd lens 230, the 4th lens 240, the 5th lens 250, the 6th lens 260, infrared ray filter out optical filtering
Element (IR-cut Filter) 270 and imaging surface 280.Wherein, electronics photo-sensitive cell 290 is arranged at imaging surface
On 280.The lens (210-260) of optical imaging lens group are each in six, and optical imaging lens group
Between two adjacent lens on optical axis all have a air gap.
First lens 210 have positive refracting power, and are plastic material, and its thing side surface 211 is at dipped beam axle
For convex surface, its image side surface 212 is concave surface at dipped beam axle, and its two surface is all aspherical.
Second lens 220 have negative refracting power, and are plastic material, and its thing side surface 221 is at dipped beam axle
For convex surface, its image side surface 222 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 230 have positive refracting power, and are plastic material, and its thing side surface 231 is at dipped beam axle
For convex surface, its image side surface 232 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 232 in off-axis place there is an at least concave surface to switch to the change that convex surface switchs to concave surface again.
4th lens 240 have negative refracting power, and are plastic material, and its thing side surface 241 is at dipped beam axle
For concave surface, its image side surface 242 is convex surface at dipped beam axle, and its two surface is all aspherical.
5th lens 250 have positive refracting power, and are plastic material, and its thing side surface 251 is at dipped beam axle
For convex surface, its image side surface 252 is concave surface at dipped beam axle, and its two surface is all aspherical.
6th lens 260 have negative refracting power, and are plastic material, and its thing side surface 261 is at dipped beam axle
For convex surface, its image side surface 262 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 262 has an at least convex surface at from optical axis.
Each lens of the optical imaging lens group of the present embodiment are among the thickness on optical axis, the 6th lens
260 be maximum in the thickness on optical axis.That is, the 6th lens 260 are more than in the thickness on optical axis
Other lenses (210-250) are in the thickness on optical axis.
The material that infrared ray filters out filter element 270 is glass, and it is arranged at the 6th lens 260 and imaging surface
Between 280, the focal length of optical imaging lens group is had no effect on.
It please coordinate with reference to following table three and table four.
In second embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<3rd embodiment>
Fig. 5 and Fig. 6 is refer to, wherein Fig. 5 illustrates the image-taking device signal according to third embodiment of the invention
Figure, Fig. 6 is sequentially spherical aberration, astigmatism and the distortion curve figure of 3rd embodiment from left to right.By Fig. 5
Understand, image-taking device includes optical imaging lens group (not another label) and electronics photo-sensitive cell 390.Shooting
With optical lens group by thing side to image side sequentially comprising aperture 300, the first lens 310, the second lens 320,
3rd lens 330, the 4th lens 340, the 5th lens 350, the 6th lens 360, infrared ray filter out optical filtering
Element (IR-cut Filter) 370 and imaging surface 380.Wherein, electronics photo-sensitive cell 390 is arranged at imaging surface
On 380.The lens (310-360) of optical imaging lens group are each in six, and optical imaging lens group
Between two adjacent lens on optical axis all have a air gap.
First lens 310 have positive refracting power, and are plastic material, and its thing side surface 311 is at dipped beam axle
For convex surface, its image side surface 312 is concave surface at dipped beam axle, and its two surface is all aspherical.
Second lens 320 have negative refracting power, and are plastic material, and its thing side surface 321 is at dipped beam axle
For convex surface, its image side surface 322 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 330 have positive refracting power, and are plastic material, and its thing side surface 331 is at dipped beam axle
For convex surface, its image side surface 332 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 332 in off-axis place there is an at least concave surface to switch to the change that convex surface switchs to concave surface again.
4th lens 340 have negative refracting power, and are plastic material, and its thing side surface 341 is at dipped beam axle
For concave surface, its image side surface 342 is convex surface at dipped beam axle, and its two surface is all aspherical.
5th lens 350 have positive refracting power, and are plastic material, and its thing side surface 351 is at dipped beam axle
For convex surface, its image side surface 352 is concave surface at dipped beam axle, and its two surface is all aspherical.
6th lens 360 have negative refracting power, and are plastic material, and its thing side surface 361 is at dipped beam axle
For convex surface, its image side surface 362 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 362 has an at least convex surface at from optical axis.
Each lens of the optical imaging lens group of the present embodiment are among the thickness on optical axis, the 6th lens
360 be maximum in the thickness on optical axis.That is, the 6th lens 360 are more than in the thickness on optical axis
Other lenses (310-350) are in the thickness on optical axis.
The material that infrared ray filters out filter element 370 is glass, and it is arranged at the 6th lens 360 and imaging surface
Between 380, the focal length of optical imaging lens group is had no effect on.
It please coordinate with reference to following table five and table six.
In 3rd embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<Fourth embodiment>
Fig. 7 and Fig. 8 is refer to, wherein Fig. 7 illustrates the image-taking device signal according to fourth embodiment of the invention
Figure, Fig. 8 is sequentially spherical aberration, astigmatism and the distortion curve figure of fourth embodiment from left to right.By Fig. 7
Understand, image-taking device includes optical imaging lens group (not another label) and electronics photo-sensitive cell 490.Shooting
With optical lens group by thing side to image side sequentially comprising aperture 400, the first lens 410, the second lens 420,
3rd lens 430, the 4th lens 440, the 5th lens 450, the 6th lens 460, infrared ray filter out optical filtering
Element (IR-cut Filter) 470 and imaging surface 480.Wherein, electronics photo-sensitive cell 490 is arranged at imaging surface
On 480.The lens (410-460) of optical imaging lens group are each in six, and optical imaging lens group
Between two adjacent lens on optical axis all have a air gap.
First lens 410 have positive refracting power, and are plastic material, and its thing side surface 411 is at dipped beam axle
For convex surface, its image side surface 412 is concave surface at dipped beam axle, and its two surface is all aspherical.
Second lens 420 have negative refracting power, and are plastic material, and its thing side surface 421 is at dipped beam axle
For convex surface, its image side surface 422 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 430 have positive refracting power, and are plastic material, and its thing side surface 431 is at dipped beam axle
For convex surface, its image side surface 432 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 432 in off-axis place there is an at least concave surface to switch to the change that convex surface switchs to concave surface again.
4th lens 440 have negative refracting power, and are plastic material, and its thing side surface 441 is at dipped beam axle
For concave surface, its image side surface 442 is convex surface at dipped beam axle, and its two surface is all aspherical.
5th lens 450 have positive refracting power, and are plastic material, and its thing side surface 451 is at dipped beam axle
For convex surface, its image side surface 452 is concave surface at dipped beam axle, and its two surface is all aspherical.
6th lens 460 have negative refracting power, and are plastic material, and its thing side surface 461 is at dipped beam axle
For convex surface, its image side surface 462 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 462 has an at least convex surface at from optical axis.
Each lens of the optical imaging lens group of the present embodiment are among the thickness on optical axis, the 6th lens
460 be maximum in the thickness on optical axis.That is, the 6th lens 460 are more than in the thickness on optical axis
Other lenses (410-450) are in the thickness on optical axis.
The material that infrared ray filters out filter element 470 is glass, and it is arranged at the 6th lens 460 and imaging surface
Between 480, the focal length of optical imaging lens group is had no effect on.
It please coordinate with reference to following table seven and table eight.
In fourth embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<5th embodiment>
Fig. 9 and Figure 10 is refer to, wherein Fig. 9 is illustrated to be shown according to the image-taking device of fifth embodiment of the invention
It is intended to, Figure 10 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 5th embodiment from left to right.By scheming
9 understand, image-taking device includes optical imaging lens group (not another label) and electronics photo-sensitive cell 590.Take the photograph
Picture optical lens group by thing side to image side sequentially comprising aperture 500, the first lens 510, the second lens 520,
It is diaphragm 501, the 3rd lens 530, the 4th lens 540, the 5th lens 550, the 6th lens 560, infrared
Line filters out filter element (IR-cut Filter) 570 and imaging surface 580.Wherein, electronics photo-sensitive cell 590 is set
It is placed on imaging surface 580.The lens (510-560) of optical imaging lens group are six, and optical imaging
In lens group between each two adjacent lens on optical axis all have a air gap.In addition, diaphragm 501 can be with
It is credit light diaphragm or field stop.
First lens 510 have positive refracting power, and are plastic material, and its thing side surface 511 is at dipped beam axle
For convex surface, its image side surface 512 is concave surface at dipped beam axle, and its two surface is all aspherical.
Second lens 520 have negative refracting power, and are plastic material, and its thing side surface 521 is at dipped beam axle
For convex surface, its image side surface 522 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 530 have positive refracting power, and are plastic material, and its thing side surface 531 is at dipped beam axle
For convex surface, its image side surface 532 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 532 in off-axis place there is an at least concave surface to switch to the change that convex surface switchs to concave surface again.
4th lens 540 have negative refracting power, and are plastic material, and its thing side surface 541 is at dipped beam axle
For concave surface, its image side surface 542 is convex surface at dipped beam axle, and its two surface is all aspherical.
5th lens 550 have negative refracting power, and are plastic material, and its thing side surface 551 is at dipped beam axle
For convex surface, its image side surface 552 is concave surface at dipped beam axle, and its two surface is all aspherical.
6th lens 560 have negative refracting power, and are plastic material, and its thing side surface 561 is at dipped beam axle
For convex surface, its image side surface 562 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 562 has an at least convex surface at from optical axis.
Each lens of the optical imaging lens group of the present embodiment are among the thickness on optical axis, the 6th lens
560 be maximum in the thickness on optical axis.That is, the 6th lens 560 are more than in the thickness on optical axis
Other lenses (510-550) are in the thickness on optical axis.
The material that infrared ray filters out filter element 570 is glass, and it is arranged at the 6th lens 560 and imaging surface
Between 580, the focal length of optical imaging lens group is had no effect on.
It please coordinate with reference to following table nine and table ten.
In 5th embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<Sixth embodiment>
Figure 11 and Figure 12 is refer to, wherein Figure 11 illustrates the image-taking device according to sixth embodiment of the invention
Schematic diagram, Figure 12 is sequentially spherical aberration, astigmatism and the distortion curve figure of sixth embodiment from left to right.By
Figure 11 understands that image-taking device includes optical imaging lens group (not another label) and electronics photo-sensitive cell 690.
Optical imaging lens group sequentially includes the first lens 610, aperture 600, the second lens by thing side to image side
620th, the 3rd lens 630, the 4th lens 640, the 5th lens 650, the 6th lens 660, infrared ray filter
Except filter element (IR-cut Filter) 670 and imaging surface 680.Wherein, electronics photo-sensitive cell 690 is arranged at
On imaging surface 680.The lens (610-660) of optical imaging lens group are six, and optical imaging lens
In group between each two adjacent lens on optical axis all have a air gap.
First lens 610 have positive refracting power, and are plastic material, and its thing side surface 611 is at dipped beam axle
For convex surface, its image side surface 612 is convex surface at dipped beam axle, and its two surface is all aspherical.
Second lens 620 have negative refracting power, and are plastic material, and its thing side surface 621 is at dipped beam axle
For concave surface, its image side surface 622 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 630 have positive refracting power, and are plastic material, and its thing side surface 631 is at dipped beam axle
For convex surface, its image side surface 632 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 632 in off-axis place there is an at least concave surface to switch to the change that convex surface switchs to concave surface again.
4th lens 640 have negative refracting power, and are plastic material, and its thing side surface 641 is at dipped beam axle
For concave surface, its image side surface 642 is convex surface at dipped beam axle, and its two surface is all aspherical.
5th lens 650 have positive refracting power, and are plastic material, and its thing side surface 651 is at dipped beam axle
For convex surface, its image side surface 652 is concave surface at dipped beam axle, and its two surface is all aspherical.
6th lens 660 have positive refracting power, and are plastic material, and its thing side surface 661 is at dipped beam axle
For convex surface, its image side surface 662 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 662 has an at least convex surface at from optical axis.
Each lens of the optical imaging lens group of the present embodiment are among the thickness on optical axis, the 6th lens
660 be maximum in the thickness on optical axis.That is, the 6th lens 660 are more than in the thickness on optical axis
Other lenses (610-650) are in the thickness on optical axis.
The material that infrared ray filters out filter element 670 is glass, and it is arranged at the 6th lens 660 and imaging surface
Between 680, the focal length of optical imaging lens group is had no effect on.
It please coordinate with reference to following table 11 and table 12.
In sixth embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<7th embodiment>
Figure 13 and Figure 14 is refer to, wherein Figure 13 illustrates the image-taking device according to seventh embodiment of the invention
Schematic diagram, Figure 14 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 7th embodiment from left to right.By
Figure 13 understands that image-taking device includes optical imaging lens group (not another label) and electronics photo-sensitive cell 790.
Optical imaging lens group sequentially includes aperture 700, the first lens 710, the second lens by thing side to image side
720th, the 3rd lens 730, the 4th lens 740, the 5th lens 750, the 6th lens 760, infrared ray filter
Except filter element (IR-cut Filter) 770 and imaging surface 780.Wherein, electronics photo-sensitive cell 790 is arranged at
On imaging surface 780.The lens (710-760) of optical imaging lens group are six, and optical imaging lens
In group between each two adjacent lens on optical axis all have a air gap.
First lens 710 have positive refracting power, and are plastic material, and its thing side surface 711 is at dipped beam axle
For convex surface, its image side surface 712 is concave surface at dipped beam axle, and its two surface is all aspherical.
Second lens 720 have negative refracting power, and are plastic material, and its thing side surface 721 is at dipped beam axle
For plane, its image side surface 722 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 730 have positive refracting power, and are plastic material, and its thing side surface 731 is at dipped beam axle
For convex surface, its image side surface 732 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 732 in off-axis place there is an at least concave surface to switch to the change that convex surface switchs to concave surface again.
4th lens 740 have negative refracting power, and are plastic material, and its thing side surface 741 is at dipped beam axle
For concave surface, its image side surface 742 is convex surface at dipped beam axle, and its two surface is all aspherical.
5th lens 750 have negative refracting power, and are plastic material, and its thing side surface 751 is at dipped beam axle
For convex surface, its image side surface 752 is concave surface at dipped beam axle, and its two surface is all aspherical.
6th lens 760 have positive refracting power, and are plastic material, and its thing side surface 761 is at dipped beam axle
For convex surface, its image side surface 762 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 762 has an at least convex surface at from optical axis.
The material that infrared ray filters out filter element 770 is glass, and it is arranged at the 6th lens 760 and imaging surface
Between 780, the focal length of optical imaging lens group is had no effect on.
It please coordinate with reference to following table 13 and table 14.
In 7th embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<8th embodiment>
Figure 15 and Figure 16 is refer to, wherein Figure 15 illustrates the image-taking device according to eighth embodiment of the invention
Schematic diagram, Figure 16 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 8th embodiment from left to right.By
Figure 15 understands that image-taking device includes optical imaging lens group (not another label) and electronics photo-sensitive cell 890.
Optical imaging lens group sequentially includes aperture 800, the first lens 810, the second lens by thing side to image side
820th, the 3rd lens 830, the 4th lens 840, the 5th lens 850, the 6th lens 860, infrared ray filter
Except filter element (IR-cut Filter) 870 and imaging surface 880.Wherein, electronics photo-sensitive cell 890 is arranged at
On imaging surface 880.The lens (810-860) of optical imaging lens group are six, and optical imaging lens
In group between each two adjacent lens on optical axis all have a air gap.
First lens 810 have positive refracting power, and are plastic material, and its thing side surface 811 is at dipped beam axle
For convex surface, its image side surface 812 is plane at dipped beam axle, and its two surface is all aspherical.
Second lens 820 have negative refracting power, and are plastic material, and its thing side surface 821 is at dipped beam axle
For convex surface, its image side surface 822 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 830 have positive refracting power, and are plastic material, and its thing side surface 831 is at dipped beam axle
For convex surface, its image side surface 832 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 832 in off-axis place there is an at least concave surface to switch to the change that convex surface switchs to concave surface again.
4th lens 840 have negative refracting power, and are plastic material, and its thing side surface 841 is at dipped beam axle
For concave surface, its image side surface 842 is convex surface at dipped beam axle, and its two surface is all aspherical.
5th lens 850 have positive refracting power, and are plastic material, and its thing side surface 851 is at dipped beam axle
For convex surface, its image side surface 852 is concave surface at dipped beam axle, and its two surface is all aspherical.
6th lens 860 have negative refracting power, and are plastic material, and its thing side surface 861 is at dipped beam axle
For convex surface, its image side surface 862 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 862 has an at least convex surface at from optical axis.
The material that infrared ray filters out filter element 870 is glass, and it is arranged at the 6th lens 860 and imaging surface
Between 880, the focal length of optical imaging lens group is had no effect on.
It please coordinate with reference to following table 15 and table 16.
In 8th embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
Although the present invention is disclosed above with embodiment, so it is not limited to the present invention, any to be familiar with
This those skilled in the art, without departing from the spirit and scope of the present invention, when that can be used for a variety of modifications and variations, therefore
Protection scope of the present invention is worked as to be defined depending on the scope of which is defined in the appended claims.
Claims (23)
1. a kind of optical imaging lens group, it is characterised in that sequentially included by thing side to image side：
One first lens, with positive refracting power, its thing side surface is convex surface at dipped beam axle；
One second lens；
One the 3rd lens, with positive refracting power, its thing side surface is convex surface, its image side surface at dipped beam axle
It is concave surface at dipped beam axle；
One the 4th lens, with negative refracting power, its thing side surface is concave surface, its image side surface at dipped beam axle
It is convex surface at dipped beam axle；
One the 5th lens, its image side surface is concave surface at dipped beam axle；And
One the 6th lens, its thing side surface is convex surface at dipped beam axle, and its image side surface is at dipped beam axle to be recessed
Face, its image side surface has an at least convex surface at from optical axis, and its thing side surface and image side surface are all aspheric
Face；
Wherein, the lens of the optical imaging lens group are each two-phase in six, the optical imaging lens group
In, all with a air gap, the radius of curvature on the 3rd lens image side surface is on optical axis between adjacent lens
R6, the radius of curvature of the 4th lens thing side surface is R7, the radius of curvature on the 5th lens image side surface
For R10, the radius of curvature of the 6th lens thing side surface is R11, and it meets following condition：
-7.0<R6/R7<0；And
0<R10/R11<2.0。
2. optical imaging lens group as claimed in claim 1, it is characterised in that the 5th lens image side
The radius of curvature on surface is R10, and the radius of curvature of the 6th lens thing side surface is R11, and it meets following
Condition：
0.35<R10/R11<1.85。
3. optical imaging lens group as claimed in claim 2, it is characterised in that the 5th lens image side
The radius of curvature on surface is R10, and the radius of curvature of the 6th lens thing side surface is R11, and it meets following
Condition：
0.50<R10/R11<1.50。
4. optical imaging lens group as claimed in claim 2, it is characterised in that the 3rd lens are in light
Thickness on axle is CT3, and the 4th lens are CT4 in the thickness on optical axis, and it meets following condition：
CT4/CT3<1.15。
5. optical imaging lens group as claimed in claim 2, it is characterised in that Jiao of the 3rd lens
Away from for f3, the focal length of the 4th lens is f4, and it meets following condition：
-1.0<f3/f4<0。
6. optical imaging lens group as claimed in claim 1, it is characterised in that the optical imaging is saturating
The focal length of microscope group is f, and the radius of curvature on the 3rd lens image side surface is R6, and it meets following condition：
0<R6/f<2.5。
7. optical imaging lens group as claimed in claim 1, it is characterised in that the optical imaging is saturating
The focal length of microscope group is f, and the focal length of the 3rd lens is f3, and the focal length of the 4th lens is f4, and the 5th is saturating
The focal length of mirror is f5, and the focal length of the 6th lens is f6, and it meets following condition：
|f/f3|+|f/f4|+|f/f5|+|f/f6|<1.0。
8. optical imaging lens group as claimed in claim 1, it is characterised in that the 3rd lens are in light
Thickness on axle is CT3, and second lens are T23 in the spacing distance on optical axis with the 3rd lens, are somebody's turn to do
3rd lens are T34 in the spacing distance on optical axis with the 4th lens, and it meets following condition：
CT3/(T23+T34)<0.75。
9. optical imaging lens group as claimed in claim 1, it is characterised in that the 4th lens are in light
Thickness on axle is CT4, intersection point of the 4th lens thing side surface on optical axis to the 4th lens thing side table
The maximum effective radius position in face is Sag41 in the horizontal displacement distance of optical axis, and it meets following condition：
|Sag41|/CT4<1.10。
10. optical imaging lens group as claimed in claim 1, it is characterised in that the 3rd lens picture
Side surface in off-axis place there is an at least concave surface to switch to the change that convex surface switchs to concave surface again.
11. optical imaging lens group as claimed in claim 1, it is characterised in that first lens
Focal length is f1, and the focal length of second lens is f2, and the focal length of the 3rd lens is f3, the 4th lens
Focal length is f4, and the focal length of the 5th lens is f5, and the focal length of the 6th lens is f6, is also denoted as this
The focal length of i-th lens is fi, and it meets following condition：
Σ(f1/|fi|)<1.75, wherein i=2,3,4,5,6.
12. optical imaging lens group as claimed in claim 1, it is characterised in that second lens have
Have negative refracting power, the second lens thing side surface at dipped beam axle be convex surface, the second lens image side surface in
It is concave surface at dipped beam axle, and the 5th lens have positive refracting power.
13. optical imaging lens group as claimed in claim 1, it is characterised in that second lens have
Have negative refracting power, the second lens thing side surface at dipped beam axle be convex surface, the second lens image side surface in
It is concave surface at dipped beam axle, and the 6th lens have negative refracting power.
14. optical imaging lens group as claimed in claim 1, it is characterised in that the optical imaging
Each two adjacent lens are Σ AT in the summation of the spacing distance on optical axis in lens group, and the optical imaging is saturating
In microscope group each lens in the lens thickness of optical axis summation be Σ CT, the most great achievement of the optical imaging lens group
Image height degree is ImgH, and it meets following condition：
0.75<(ΣCT/ImgH)+(ΣAT/ImgH)<1.33。
15. optical imaging lens group as claimed in claim 1, it is characterised in that second lens with
3rd lens are T23 in the spacing distance on optical axis, and the 3rd lens are with the 4th lens on optical axis
Spacing distance is T34, and it meets following condition：
T23/T34<1.5。
16. optical imaging lens group as claimed in claim 1, it is characterised in that the 5th lens in
Thickness on optical axis is CT5, and the 6th lens are CT6 in the thickness on optical axis, and it meets following condition：
CT5/CT6<0.95。
17. optical imaging lens group as claimed in claim 1, it is characterised in that the optical imaging
The focal length of lens group is f, and the radius of curvature on the 5th lens image side surface is R10, and it meets following condition：
0<R10/f<1.0。
18. optical imaging lens group as claimed in claim 1, it is characterised in that the optical imaging
The focal length of lens group is f, and the radius of curvature of the 5th lens thing side surface is R9, the 5th lens image side table
The radius of curvature in face is R10, and it meets following condition：
|R9/f|+|R10/f|<1.85。
19. optical imaging lens group as claimed in claim 1, it is characterised in that the optical imaging
Each lens of lens group are among the thickness on optical axis, and the 6th lens are maximum in the thickness on optical axis.
20. optical imaging lens group as claimed in claim 1, it is characterised in that the first lens thing
The radius of curvature of side surface is R1, and the radius of curvature on the first lens image side surface is R2, second lens
The radius of curvature of thing side surface is R3, and the radius of curvature on the second lens image side surface is R4, and the 3rd is saturating
The radius of curvature of mirror thing side surface is R5, and the radius of curvature on the 3rd lens image side surface is R6, the 4th
The radius of curvature of lens thing side surface is R7, and the radius of curvature on the 4th lens image side surface is R8, and this
The radius of curvature of five lens thing side surfaces is R9, and the radius of curvature on the 5th lens image side surface is R10,
The radius of curvature of 6th lens thing side surface is R11, and the radius of curvature on the 6th lens image side surface is
R12, it meets following condition：
|R12|<| Ri |, wherein i=1,2,3,4,5,6,7,8,9,10,11.
21. optical imaging lens group as claimed in claim 1, it is characterised in that the 3rd lens in
Thickness on optical axis is CT3, intersection point of the 3rd lens image side surface on optical axis to the 3rd lens image side
The maximum effective radius position on surface is Sag32 in the horizontal displacement distance of optical axis, meets following condition：
|Sag32|/CT3<0.15。
22. a kind of image-taking device, it is characterised in that include：
Optical imaging lens group as claimed in claim 1；And
One electronics photo-sensitive cell, wherein the electronics photo-sensitive cell are arranged at one one-tenth of the optical imaging lens group
In image planes.
23. a kind of electronic installation, it is characterised in that include：
Image-taking device as claimed in claim 22.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910003825.1A CN109581628B (en) | 2016-01-29 | 2016-01-29 | Optical lens assembly for camera shooting and image capturing device |
| CN201610064860.0A CN107024756B (en) | 2016-01-29 | 2016-01-29 | Optical imaging lens group, image-taking device and electronic device |
| CN201910006285.2A CN109669254B (en) | 2016-01-29 | 2016-01-29 | Optical lens assembly for camera shooting, image capturing device and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064860.0A CN107024756B (en) | 2016-01-29 | 2016-01-29 | Optical imaging lens group, image-taking device and electronic device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910006285.2A Division CN109669254B (en) | 2016-01-29 | 2016-01-29 | Optical lens assembly for camera shooting, image capturing device and electronic device |
| CN201910003825.1A Division CN109581628B (en) | 2016-01-29 | 2016-01-29 | Optical lens assembly for camera shooting and image capturing device |
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| Publication Number | Publication Date |
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| CN107024756A true CN107024756A (en) | 2017-08-08 |
| CN107024756B CN107024756B (en) | 2019-01-29 |
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| CN201910003825.1A Active CN109581628B (en) | 2016-01-29 | 2016-01-29 | Optical lens assembly for camera shooting and image capturing device |
| CN201610064860.0A Active CN107024756B (en) | 2016-01-29 | 2016-01-29 | Optical imaging lens group, image-taking device and electronic device |
| CN201910006285.2A Active CN109669254B (en) | 2016-01-29 | 2016-01-29 | Optical lens assembly for camera shooting, image capturing device and electronic device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910003825.1A Active CN109581628B (en) | 2016-01-29 | 2016-01-29 | Optical lens assembly for camera shooting and image capturing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109581628A (en) | 2019-04-05 |
| CN109669254A (en) | 2019-04-23 |
| CN109669254B (en) | 2020-11-06 |
| CN109581628B (en) | 2020-11-06 |
| CN107024756B (en) | 2019-01-29 |
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