CN109164556A - Optical camera lens group and image-taking device - Google Patents
Optical camera lens group and image-taking device Download PDFInfo
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- CN109164556A CN109164556A CN201811123250.9A CN201811123250A CN109164556A CN 109164556 A CN109164556 A CN 109164556A CN 201811123250 A CN201811123250 A CN 201811123250A CN 109164556 A CN109164556 A CN 109164556A
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Abstract
The invention discloses a kind of optical camera lens group and image-taking device, optical camera lens group sequentially includes the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens by object side to image side.Second lens have positive refracting power.6th lens object side surface and image side surface are all aspherical.7th lens image side surface is concave surface at dipped beam axis, and the 7th lens image side surface has an at least convex surface in off-axis place, and the 7th lens object side surface and image side surface are all aspherical.Invention additionally discloses the image-taking devices with above-mentioned optical camera lens group.
Description
The application is for divisional application, the applying date of original application are as follows: on 07 01st, 2015；Application No. is:
201510377516.2；Denomination of invention are as follows: optical camera lens group, image-taking device and electronic device.
Technical field
The present invention relates to a kind of optical camera lens group and image-taking device, in particular to a kind of light suitable for electronic device
Learn pick-up lens group and image-taking device.
Background technique
In recent years, flourishing with miniaturization phtographic lens, the demand of minisize image acquisition module increasingly improves, and general
The photosensitive element of phtographic lens is nothing more than being photosensitive coupling element (Charge Coupled Device, CCD) or complementary aoxidize
Metal semiconductor element (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor) two
Kind, and progressing greatly with semiconductor process technique so that the Pixel Dimensions of photosensitive element reduce, add now electronic product with
The good and light and short external form of function is development trend, and therefore, the miniaturization phtographic lens for having good image quality becomes
For mainstream currently on the market.
Tradition is equipped on the miniaturization phtographic lens of the high pixel on electronic device, mostly uses the lens arrangement of few the piece number to be
It is main, but due to high-order smart phone (Smart Phone), wearable device (Wearable Device) and tablet computer
High standards mobile devices such as (Tablet Personal Computer) it is prevailing, drive miniaturization phtographic lens pixel at
As the requirement promotion in quality, existing lens group will be unable to meet the needs of higher order.In addition, phtographic lens is gradually in recent years
Develop towards toward large aperture and wide viewing angle, so that the optical system of conventional lenses configuration is difficult to meet large aperture, wide viewing angle simultaneously
And the demand of miniaturization.Therefore, how to provide while having both the high-quality optical system of miniaturization and wide viewing angle is mesh
One of the problem of preceding industry is to be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of optical camera lens group and image-taking device, wherein optical camera lens group packet
Containing seven lens, and the 7th lens image side surface is concave surface at dipped beam axis.When a specific condition is satisfied, the 7th lens image side
Surface facilitates the back focal length of shortening optical camera lens group to maintain the miniaturization of optical camera lens group, it is made to be more suitable for taking
It is loaded in frivolous electronic device.In addition, can in appropriately configured optical camera lens group each lens refracting power to reduce each lens
Susceptibility, and then be relatively easy to the manufacture of optical camera lens group.Optical camera lens group provided by the present invention can be same
When meet the needs of large aperture, wide viewing angle, miniaturization and high image quality.
The present invention provides a kind of optical camera lens group, sequentially includes the first lens, the second lens, by object side to image side
Three lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.Second lens have positive refracting power.6th lens object
Side surface is all aspherical with image side surface.7th lens image side surface is concave surface, the 7th lens image side surface at dipped beam axis
There is an at least convex surface in off-axis place, the 7th lens object side surface and image side surface are all aspherical.In optical camera lens group
Lens sum be seven, the radius of curvature on the 7th lens image side surface is R14, and the focal length of optical camera lens group is f, first
The focal length of lens is f1, and the focal length of the second lens is f2, and the first lens object side surface to imaging surface is TL in the distance on optical axis,
The maximum image height of optical camera lens group is ImgH, and the first lens, the second lens, the third lens, the 4th lens, the 5th are thoroughly
The maximum value of refracting power is Powmax in mirror, the 6th lens and the 7th lens, meets following condition:
R14/f<0.75；
f2/|f1|<1.5；
TL/ImgH<3.0；And
|Powmax|<0.90。
The present invention provides a kind of image-taking device, it includes optical camera lens group above-mentioned and an electronics photosensitive element,
Wherein electronics photosensitive element is set on the imaging surface of optical camera lens group.
The present invention separately provides a kind of optical camera 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, the 6th lens and the 7th lens.First lens image side surface is at dipped beam axis
Concave surface, the second lens have positive refracting power, and the 6th lens object side surface is all aspherical, the 7th lens image side table with image side surface
Face is concave surface at dipped beam axis, and the 7th lens image side surface has an at least convex surface in off-axis place, the 7th lens object side surface with
Image side surface is all aspherical.Lens sum in optical camera lens group is seven, the curvature half on the 7th lens image side surface
Diameter is R14, and the focal length of optical camera lens group is f, and the first lens object side surface to imaging surface is TL, light in the distance on optical axis
The maximum image height for learning pick-up lens group is ImgH, and the first lens, the second lens, the third lens, the 4th lens, the 5th are thoroughly
The maximum value of refracting power is Powmax in mirror, the 6th lens and the 7th lens, meets following condition:
R14/f<0.75；
TL/ImgH<3.0；And
|Powmax|<0.90。
The present invention separately provides a kind of image-taking device, and it includes optical camera lens group above-mentioned and the photosensitive members of an electronics
Part, wherein electronics photosensitive element is set on the imaging surface of optical camera lens group.
The present invention provides a kind of optical camera lens group again, by object side to image side sequentially include the first lens, the second lens,
The third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.Second lens have positive refracting power.6th lens
Object side surface is all aspherical with image side surface.7th lens image side surface is concave surface, the 7th lens image side table at dipped beam axis
Face has an at least convex surface in off-axis place, and the 7th lens object side surface and image side surface are all aspherical.Optical camera lens group
In lens sum be seven, the radius of curvature on the 7th lens image side surface is R14, and the focal length of optical camera lens group is f, the
The abbe number of two lens is V2, and the abbe number of the third lens is V3, and the first lens object side surface is to imaging surface on optical axis
Distance be TL, the maximum image height of optical camera lens group is ImgH, the first lens, the second lens, the third lens, the 4th
The maximum value of refracting power is Powmax in lens, the 5th lens, the 6th lens and the 7th lens, meets following condition:
R14/f<0.75；
1.5<V2/V3<3.5；
TL/ImgH<3.0；And
|Powmax|<0.90。
The present invention provides a kind of image-taking device again, and it includes optical camera lens group above-mentioned and the photosensitive members of an electronics
Part, wherein electronics photosensitive element is set on the imaging surface of optical camera lens group.
As f2/ | f1 | when meeting above-mentioned condition, facilitates the image side end in optical camera lens group and configure enough flexions
Power makes optical camera lens group while having both wide viewing angle, low sensitivity and the characteristic of miniaturization.
When R14/f meets above-mentioned condition, the 7th lens image side surface helps to shorten the rear coke of optical camera lens group
Away from the miniaturization further to maintain optical camera lens group.
When TL/ImgH meets above-mentioned condition, is conducive to the miniaturization for further maintaining optical camera lens group, makes it
It is more suitable for being equipped on frivolous electronic device.
When Powmax meets above-mentioned condition, can in appropriately configured optical camera lens group each lens refracting power to reduce
The susceptibility of each lens, and then it is relatively easy to the manufacture of optical camera lens group.
When V2/V3 meets above-mentioned condition, facilitate the color difference and astigmatism of correcting optical camera lens group.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
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 any signal of the 4th lens image side surface near imaging surface of the optical camera lens group of Fig. 1
Figure；
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
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
7th Tou Jing ︰ 170,270,370,470,570,670,770,870
Object Ce Biao Mian ︰ 171,271,371,471,571,671,771,871
As side surface ︰ 172,272,372,472,572,672,772,872
Infrared ray filters out optical element ︰ 180,280,380,480,580,680,780,880
Cheng Xiang Mian ︰ 190,290,390,490,590,690,790,890
Electronics photosensitive element ︰ 195,295,395,495,595,695,795,895
CT1: the first lens are in the thickness on optical axis
CT2: the second lens are in the thickness on optical axis
The 4th lens of CT4 ︰ are in the thickness on optical axis
The 5th lens of CT5 ︰ are in the thickness on optical axis
Dr1r6: the first lens object side surface to the third lens image side surface is in the distance on optical axis
F: the focal length of optical camera lens group
The focal length of f1: the first lens
The focal length of f2: the second lens
ImgH: the maximum image height of optical camera lens group
P: the four lens image side surface near imaging surface a bit
Powmax: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th are thoroughly
The maximum value of refracting power in mirror
The radius of curvature on the 6th lens image side surface R12 ︰
The radius of curvature of R13: the seven lens object side surface
The radius of curvature of R14: the seven lens image side surface
TL: the first lens object side surface a to imaging surface is in the distance on optical axis
Td: the first lens object side surface to the 7th lens image side surface is in the distance on optical axis
The abbe number of V2: the second lens
V3: the abbe number of the third lens
The abbe number of V5: the five lens
The first lens of Σ CT ︰, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens
In the summation of the thickness on optical axis
Specific embodiment
Structural principle and working principle of the invention are described in detail with reference to the accompanying drawing:
Optical camera 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, the 6th lens and the 7th lens.Wherein, the lens for having refracting power in optical camera lens group are seven.
Wantonly two in first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens
In all having an airspace, that is, the first lens, the second lens, the third lens, the 4th lens, on optical axis between adjacent lens
Five lens, the 6th lens and the 7th lens are seven single disengaged (non-bondings) and have the lens of refracting power.It is saturating due to engaging
The more disengaged lens of the technique of mirror are complicated, and the curved surface of high accuracy need to be especially possessed on the joint surface of two lens, to reach two thoroughly
High adaptation when mirror engages is more likely to cause to move axis defect because of deviation and during engagement, influence whole optics at
As quality.Therefore, the first lens in lens system are to the 7th lens using the lens of seven single disengaged tool refracting powers
The problem that setting, and then being effectively improved cemented lens.
First lens have refracting power.Whereby, the aberration of optical camera lens group can be corrected to promote image quality.
Second lens have positive refracting power.Whereby, facilitate the total length of shortening optical camera lens group.
The third lens can have negative refracting power.Whereby, facilitate to correct aberration caused by the second lens, and reduce light
Learn the susceptibility of pick-up lens group.
4th lens can have positive refracting power, and image side surface can be convex surface at dipped beam axis.In addition, the 4th lens image side
The mirror surface center on the 4th lens image side surface can be located on surface near a point P of imaging surface.Whereby, optics can effectively be corrected
The Petzval sum number (Petzval's sum) of pick-up lens group, keeps imaging surface more flat, and helps to reinforce the amendment of astigmatism.
Please refer to Figure 17, Figure 17 be painted the 4th lens image side surface of the optical camera lens group of Fig. 1 near imaging surface any
Schematic diagram.The mirror surface center on the 4th lens image side surface refers to the intersection point on the 4th lens image side surface and an optical axis.
5th lens have refracting power.Whereby, facilitate the astigmatism of amendment optical camera lens group to promote image quality.
6th lens can have positive refracting power, and image side surface can be concave surface at dipped beam axis, and image side surface is in off-axis
Place can have an at least convex surface.Whereby, the shape of the 6th lens is more appropriate, facilitate correct image periphery aberration with it is askew
Song, further to promote image quality.
7th lens have refracting power, and object side surface can be convex surface at dipped beam axis, and image side surface is at dipped beam axis
For concave surface, image side surface has an at least convex surface in off-axis place.Whereby, the principal point of optical camera lens group can be made far from optics
The image side end of pick-up lens group avoids the volume of camera optical lens group excessive to shorten optical camera lens group back focal length.
The radius of curvature of 6th lens image side surface is R12, and the focal length of optical camera lens group is f, meets following item
Part: 0≤R12/f.Whereby, facilitate the image side for further making the principal point of optical camera lens group far from optical camera lens group
End, to shorten the total length of optical camera lens group.
The focal length of first lens is f1, and the focal length of the second lens is f2, meets following condition: f2/ | f1 | < 1.5.It borrows
This, facilitates the image side end in optical camera lens group and configures enough refracting powers, makes optical camera lens group while having both wide
The characteristic at visual angle, low sensitivity and miniaturization.Preferably, it meets following condition: f2/ | f1 | < 1.0.
The radius of curvature of 7th lens image side surface is R14, and the focal length of optical camera lens group is f, meets following item
Part: R14/f < 0.75.Whereby, the 7th lens image side surface helps further to shorten the back focal length of optical camera lens group to tie up
Hold the miniaturization of optical camera lens group.Preferably, it meets following condition: R14/f < 0.60.More preferably, meet following item
Part: R14/f < 0.45.
First lens object side surface a to imaging surface is TL, the maximum imaging of optical camera lens group in the distance on optical axis
Height is ImgH (i.e. the half of effective sensing region diagonal line overall length of electronics photosensitive element), meets following condition: TL/
ImgH<3.0.Whereby, the miniaturization for being conducive to maintain optical camera lens group makes it be more suitable for being equipped on frivolous electronics dress
It sets.
4th lens are in a thickness of CT4, the 5th lens are in, with a thickness of CT5, can meeting following on optical axis on optical axis
Condition: 1.25 < CT4/CT5 < 4.0.Whereby, can avoid leads to the problem of lens form it is bad, facilitate increase lens molding
Property and homogenieity.
It is bent in first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens
The maximum value for rolling over power is Powmax, can meet following condition: | Powmax | < 0.90.Specifically, optical camera lens group
The ratio of the focal length of focal length and each lens be respectively the refracting power of each lens, and these of the first lens to the 7th lens are bent
The maximum value rolled in power is Powmax.Whereby, can in appropriately configured optical camera lens group each lens refracting power to reduce
The susceptibility of each lens, and then it is relatively easy to the manufacture of optical camera lens group.
First lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens respectively at
On optical axis the summation of lens thickness be Σ CT (i.e. the first lens on optical axis thickness CT1, the second lens are in the thickness on optical axis
CT2, the third lens on optical axis thickness, the 4th lens on optical axis thickness CT4, the 5th lens are in the thickness on optical axis
CT5, the 6th lens on optical axis thickness and the 7th lens in the summation of the thickness on optical axis), the first lens object side surface
To the 7th lens image side surface in the distance on optical axis be Td, following condition: CT/Td < 0.95 0.70≤Σ can be met.It borrows
This, the thickness configuration of each lens is more appropriate, facilitates the assembling and space configuration of optical camera lens group.
The radius of curvature of 7th lens object side surface is R13, and the radius of curvature on the 7th lens image side surface is R14, optics
The focal length of pick-up lens group is f, can meet following condition: (| R13 |+| R14 |)/f < 2.0.Whereby, be conducive to balance the 7th
The curvature on lens object side surface and image side surface is to correct the aberration of optical camera lens group.In addition, when the 7th lens object side table
When face is convex surface at dipped beam axis, above-mentioned condition helps to keep the shape of the 7th lens more appropriate, further promotes amendment picture
The effect of difference.
First lens are in a thickness of CT1, the second lens are in, with a thickness of CT2, can meeting following on optical axis on optical axis
Condition: CT2/CT1 < 1.60.Whereby, the thickness of the first lens and the second lens is more appropriate, helps to improve the assembling of lens
With manufacture qualification rate.
First lens object side surface to the third lens image side surface is Dr1r6 in the distance on optical axis, and the 4th lens are in light
On axis with a thickness of CT4, following condition: Dr1r6/CT4 < 2.50 can be met.Whereby, it can effectively reduce close to optical camera lens
Space shared by each lens of the object side of head group, and then make the configuration of each lens in optical camera lens group more closely.
The abbe number of the third lens is V3, and the abbe numbers of the 5th lens is V5, can meet following condition: V3+V5 <
60.Whereby, facilitate the color difference and astigmatism of amendment optical camera lens group.
The focal length of optical camera lens group is f, and the focal length of the first lens is f1, and the focal length of the second lens is f2, can be expired
Foot column condition: | f/f1 |+| f/f2 | < 1.50.Whereby, facilitate the refracting power of appropriately configured first lens and the second lens,
To reduce the susceptibility of each lens close to the object side of optical camera lens group.
The abbe number of second lens is V2, and the abbe numbers of the third lens is V3, can meet following condition: 1.5 <
V2/V3<3.5.Whereby, facilitate the color difference and astigmatism of amendment optical camera lens group.
Optical camera lens group further includes an aperture, in optical camera lens group 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 that aperture is set to
Between first lens and imaging surface.If aperture is preposition aperture, can make the outgoing pupil (Exit Pupil) of optical camera lens group with
Imaging surface generates longer distance, makes it have telecentricity (Telecentric) effect, and can increase the CCD of electronics photosensitive element
Or CMOS receives the efficiency of image；Aperture is set if in, contributes to the field angle of expansion system, has optical camera lens group
There is the advantage of wide-angle lens.
The invention discloses optical camera lens group in, the material of lens can be plastic cement or glass.When the material of lens is
Glass can increase the freedom degree of refracting power configuration.Separately working as lens material is plastic cement, then production cost can be effectively reduced.This
Outside, can be in being arranged on lens surface aspherical (ASP), aspherical to be easy to be fabricated to the shape other than spherical surface, acquisition is more
Controlled variable, to cut down aberration, and then using the number of lens needed for reducing, therefore optics overall length can be effectively reduced
Degree.
The invention discloses optical camera lens group in, if lens surface is convex surface and when not defining the convex surface position,
Indicate that the lens surface is convex surface at dipped beam axis；If lens surface is concave surface and does not define the concave surface position, then it represents that should
Lens surface is concave surface at dipped beam axis.If the refracting power or focal length of lens do not define its regional location, then it represents that the lens
Refracting power or focal length be refracting power or focal length of the lens at dipped beam axis.
The invention discloses optical camera lens group in, the imaging surface (ImageSurface) of optical camera lens group is according to it
The difference of corresponding electronics photosensitive element, can be a flat surface or have the curved surface of any curvature, particularly relate to concave surface towards past object side
To curved surface.
In optical camera lens group of the present invention, may be provided with an at least diaphragm, position may be disposed at the first lens before,
Between each lens or after last lens, the type such as credit light diaphragm (GlareStop) or field stop of the diaphragm
(Field Stop) etc. helps to promote image quality to reduce stray light.
The present invention more provides a kind of image-taking device, it includes aforementioned optical pick-up lens group and electronics photosensitive element,
Middle electronics photosensitive element is set on the imaging surface of optical camera lens group.Preferably, the image-taking device can further include mirror
Cylinder (Barrel Member), support device (Holding Member) or combinations thereof.
Figure 18, Figure 19 and Figure 20 are please referred to, the present invention more provides a kind of electronic device, and it includes aforementioned image-taking devices.It takes
As device 10 many-sided can be applied to smart phone (as shown in figure 18), tablet computer (as shown in figure 19) and wearable device
Electronic devices such as (as shown in figure 20).Preferably, electronic device can further include control unit (Control Units), show
Show unit (Display Units), storage element (StorageUnits), random access memory (RAM) or combinations thereof.
The more visual demand of optical camera lens group of the invention is applied in the optical system of mobile focusing, and has both excellent
The characteristic of lens error correction and good image quality.The present invention many-sided can also be applied to three-dimensional (3D) image capture, digital camera,
Mobile device, tablet computer, smart television, network monitoring device, drive recorder, reversing developing apparatus, somatic sensation television game machine
In the electronic devices such as wearable device.Before take off electronic device only and be and exemplarily illustrate practice example of the invention, and
The operation strategies of unrestricted image-taking device of the invention.
According to above embodiment, specific embodiment set forth below simultaneously cooperates attached drawing 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 is taken the photograph comprising optics
As lens group (not another label) and electronics photosensitive element 195.Optical camera lens group sequentially includes aperture by object side to image side
100, the first lens 110, the second lens 120, the third lens 130, the 4th lens 140, the 5th lens 150, the 6th lens 160,
7th lens 170, infrared ray filter out filter element (IR-cut Filter) 180 and imaging surface 190.Wherein, electronics photosensitive element
195 are set on imaging surface 190.The single disengaged lens for having refracting power in optical camera lens group are seven.
First lens 110 have positive refracting power, and are plastic cement 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 positive refracting power, and are plastic cement 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 negative refracting power, and are plastic cement material, and object side surface 131 is convex surface at dipped beam axis,
Image side surface 132 is concave surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 140 have positive refracting power, and are plastic cement material, and object side surface 141 is convex surface at dipped beam axis,
Image side surface 142 at dipped beam axis be convex surface, two surfaces be all it is aspherical, image side surface 142 is near imaging surface 190
Point is located at the mirror surface center on the 4th lens image side surface 142.
5th lens 150 have negative refracting power, and are plastic cement material, and object side surface 151 is concave surface at dipped beam axis,
Image side surface 152 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 160 have positive refracting power, and are plastic cement material, and object side surface 161 is convex surface at dipped beam axis,
Image side surface 162 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 162 has at least in off-axis place
One convex surface.
7th lens 170 have negative refracting power, and are plastic cement material, and object side surface 171 is convex surface at dipped beam axis,
Image side surface 172 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 172 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 180 is glass, is set between the 7th lens 170 and imaging surface 190,
Have no effect on the focal length of optical camera lens group.
The aspherical fitting equation of above-mentioned each lens is expressed as follows:
；Wherein:
X: the point for being Y apart from optical axis on aspherical, with the relative distance for being tangential on the section of intersection point on aspherical optical axis；
Y: the vertical range of point and optical axis in aspheric curve；
R: radius of curvature；
K: conical surface coefficient；And
Ai: the i-th rank asphericity coefficient.
In the optical camera lens group of first embodiment, the focal length of optical camera lens group is f, optical camera lens group
F-number (F-number) is Fno, and the half at maximum visual angle is HFOV in optical camera lens group, and numerical value is as follows: f=4.28
Millimeter (mm), Fno=2.25, HFOV=39.8 degree (deg.).
The abbe number of second lens 120 is V2, and the abbe number of the third lens 130 is V3, meets following condition:
V2/V3=2.38.
The abbe number of the third lens 130 is V3, and the abbe number of the 5th lens 150 is V5, meets following condition: V3
+ V5=47.0.
First lens 110 are in a thickness of CT1, second lens 120 on optical axis in, with a thickness of CT2, meeting on optical axis
Following condition: CT2/CT1=0.69.
4th lens 140 are in a thickness of CT4, the 5th lens 150 on optical axis in, with a thickness of CT5, meeting on optical axis
Following condition: CT4/CT5=1.69.
First lens 110, the second lens 120, the third lens 130, the 4th lens 140, the 5th lens 150, the 6th lens
160 and the 7th lens 170 in the thickness on optical axis summation be Σ CT, 111 to the 7th lens image side of the first lens object side surface
Surface 172 is Td in the distance on optical axis, meets following condition: Σ CT/Td=0.70.
First lens object side surface 111 to the third lens image side surface 132 is Dr1r6 in the distance on optical axis, and the 4th thoroughly
Mirror 140 is in, with a thickness of CT4, meeting following condition: Dr1r6/CT4=2.17 on optical axis.
The focal length of first lens 110 is f1, and the focal length of the second lens 120 is f2, meets following condition: f2/ | f1 |=
0.61。
The radius of curvature of 6th lens image side surface 162 is R12, and the focal length of optical camera lens group is f, is met following
Condition: R12/f=0.97.
The radius of curvature of 7th lens object side surface 171 is R13, and the radius of curvature on the 7th lens image side surface 172 is
The focal length of R14, optical camera lens group are f, meet following condition: (| R13 |+| R14 |)/f=0.99.
The radius of curvature of 7th lens image side surface 172 is R14, and the focal length of optical camera lens group is f, is met following
Condition: R14/f=0.35.
First lens object side surface 111 to imaging surface 190 in the distance on optical axis be TL, the maximum of optical camera lens group
Image height is ImgH, meets following condition: TL/ImgH=1.48.
The focal length of optical camera lens group is f, and the focal length of the first lens 110 is f1, and the focal length of the second lens 120 is f2,
It meets following condition: | f/f1 |+| f/f2 |=1.12.
First lens 110, the second lens 120, the third lens 130, the 4th lens 140, the 5th lens 150, the 6th lens
160 and the 7th the maximum value of refracting power in lens 170 be Powmax, meet following condition: | Powmax |=0.70.
Cooperation is referring to following table one and table two.
Table one is the 1st detailed structured data of figure first embodiment, and wherein the unit of radius of curvature, thickness and focal length is
Mm, and surface 0 to 18 is sequentially indicated by the surface of object side to image side.Table two is the aspherical surface data in first embodiment, wherein
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.In addition,
Following embodiment table is the schematic diagram and aberration curve figure of corresponding each embodiment, and the definition of data is all real with first in table
The definition for applying the table one and table two of example 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 is taken the photograph comprising optics
As lens group (not another label) and electronics photosensitive element 295.Optical camera lens group sequentially includes aperture by object side to image side
200, the first lens 210, the second lens 220, the third lens 230, the 4th lens 240, the 5th lens 250, the 6th lens 260,
7th lens 270, infrared ray filter out filter element 280 and imaging surface 290.Wherein, electronics photosensitive element 295 is set to imaging surface
On 290.The single disengaged lens for having refracting power in optical camera lens group are seven.
First lens 210 have positive refracting power, and are plastic cement 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 positive refracting power, and are plastic cement 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 negative refracting power, and are plastic cement material, and object side surface 231 is convex surface at dipped beam axis,
Image side surface 232 is concave surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 240 have positive refracting power, and are plastic cement material, and object side surface 241 is convex surface at dipped beam axis,
Image side surface 242 at dipped beam axis be convex surface, two surfaces be all it is aspherical, image side surface 242 is near imaging surface 290
Point is located at the mirror surface center on the 4th lens image side surface 242.
5th lens 250 have negative refracting power, and are plastic cement material, and object side surface 251 is concave surface at dipped beam axis,
Image side surface 252 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 260 have positive refracting power, and are plastic cement material, and object side surface 261 is convex surface at dipped beam axis,
Image side surface 262 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 262 has at least in off-axis place
One convex surface.
7th lens 270 have negative refracting power, and are plastic cement material, and object side surface 271 is convex surface at dipped beam axis,
Image side surface 272 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 272 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 280 is glass, is set between the 7th lens 270 and imaging surface 290,
Have no effect on the focal length of optical camera 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 is taken the photograph comprising optics
As lens group (not another label) and electronics photosensitive element 395.Optical camera lens group sequentially includes first saturating by object side to image side
Mirror 310, aperture 300, the second lens 320, the third lens 330, the 4th lens 340, the 5th lens 350, the 6th lens 360,
Seven lens 370, infrared ray filter out filter element 380 and imaging surface 390.Wherein, electronics photosensitive element 395 is set to imaging surface
On 390.The single disengaged lens for having refracting power in optical camera lens group are seven.
First lens 310 have positive refracting power, and are plastic cement 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 positive refracting power, and are plastic cement 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 negative refracting power, and are plastic cement material, and object side surface 331 is convex surface at dipped beam axis,
Image side surface 332 is concave surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 340 have positive refracting power, and are plastic cement material, and object side surface 341 is convex surface at dipped beam axis,
Image side surface 342 at dipped beam axis be convex surface, two surfaces be all it is aspherical, image side surface 342 is near imaging surface 390
Point is located at the mirror surface center on the 4th lens image side surface 342.
5th lens 350 have negative refracting power, and are plastic cement material, and object side surface 351 is concave surface at dipped beam axis,
Image side surface 352 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 360 have positive refracting power, and are plastic cement material, and object side surface 361 is convex surface at dipped beam axis,
Image side surface 362 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 362 has at least in off-axis place
One convex surface.
7th lens 370 have negative refracting power, and are plastic cement material, and object side surface 371 is convex surface at dipped beam axis,
Image side surface 372 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 372 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 380 is glass, is set between the 7th lens 370 and imaging surface 390,
Have no effect on the focal length of optical camera 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 is taken the photograph comprising optics
As lens group (not another label) and electronics photosensitive element 495.Optical camera lens group sequentially includes first saturating by object side to image side
Mirror 410, the second lens 420, aperture 400, the third lens 430, the 4th lens 440, the 5th lens 450, the 6th lens 460,
Seven lens 470, infrared ray filter out filter element 480 and imaging surface 490.Wherein, electronics photosensitive element 495 is set to imaging surface
On 490.The single disengaged lens for having refracting power in optical camera lens group are seven.
First lens 410 have positive refracting power, and are plastic cement material, and object side surface 411 is convex surface at dipped beam axis,
Image side surface 412 is convex surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 420 have positive refracting power, and are plastic cement 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 negative refracting power, and are plastic cement material, and object side surface 431 is convex surface at dipped beam axis,
Image side surface 432 is concave surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 440 have positive refracting power, and are plastic cement material, and object side surface 441 is convex surface at dipped beam axis,
Image side surface 442 at dipped beam axis be convex surface, two surfaces be all it is aspherical, image side surface 442 is near imaging surface 490
Point is located at the mirror surface center on the 4th lens image side surface 442.
5th lens 450 have positive refracting power, and are plastic cement material, and object side surface 451 is concave surface at dipped beam axis,
Image side surface 452 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 460 have negative refracting power, and are plastic cement material, and object side surface 461 is concave surface at dipped beam axis,
Image side surface 462 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 462 has at least in off-axis place
One convex surface.
7th lens 470 have negative refracting power, and are plastic cement material, and object side surface 471 is convex surface at dipped beam axis,
Image side surface 472 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 472 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 480 is glass, is set between the 7th lens 470 and imaging surface 490,
Have no effect on the focal length of optical camera 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 optics
Pick-up lens group (not another label) and electronics photosensitive element 595.Optical camera lens group sequentially includes first by object side to image side
Lens 510, the second lens 520, aperture 500, the third lens 530, the 4th lens 540, the 5th lens 550, the 6th lens 560,
7th lens 570, infrared ray filter out filter element 580 and imaging surface 590.Wherein, electronics photosensitive element 595 is set to imaging surface
On 590.The single disengaged lens for having refracting power in optical camera lens group are seven.
First lens 510 have positive refracting power, and are plastic cement material, and object side surface 511 is convex surface at dipped beam axis,
Image side surface 512 is convex surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 520 have positive refracting power, and are plastic cement 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 negative refracting power, and are plastic cement material, and object side surface 531 is convex surface at dipped beam axis,
Image side surface 532 is concave surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 540 have positive refracting power, and are plastic cement material, and object side surface 541 is convex surface at dipped beam axis,
Image side surface 542 at dipped beam axis be convex surface, two surfaces be all it is aspherical, image side surface 542 is near imaging surface 590
Point is located at the mirror surface center on the 4th lens image side surface 542.
5th lens 550 have positive refracting power, and are plastic cement material, and object side surface 551 is concave surface at dipped beam axis,
Image side surface 552 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 560 have negative refracting power, and are plastic cement material, and object side surface 561 is concave surface at dipped beam axis,
Image side surface 562 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 562 has at least in off-axis place
One convex surface.
7th lens 570 have negative refracting power, and are plastic cement material, and object side surface 571 is convex surface at dipped beam axis,
Image side surface 572 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 572 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 580 is glass, is set between the 7th lens 570 and imaging surface 590,
Have no effect on the focal length of optical camera 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 light
Learn pick-up lens group (not another label) and electronics photosensitive element 695.Optical camera lens group sequentially includes by object side to image side
One lens 610, aperture 600, the second lens 620, the third lens 630, the 4th lens 640, the 5th lens 650, the 6th lens
660, the 7th lens 670, infrared ray filter out filter element 680 and imaging surface 690.Wherein, electronics photosensitive element 695 is set into
In image planes 690.The single disengaged lens for having refracting power in optical camera lens group are seven.
First lens 610 have negative refracting power, and are plastic cement material, and object side surface 611 is convex surface at dipped beam axis,
Image side surface 612 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 620 have positive refracting power, and are plastic cement material, and object side surface 621 is convex surface at dipped beam axis,
Image side surface 622 is convex surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 630 have negative refracting power, and are plastic cement material, and object side surface 631 is convex surface at dipped beam axis,
Image side surface 632 is concave surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 640 have positive refracting power, and are plastic cement material, and object side surface 641 is concave surface at dipped beam axis,
Image side surface 642 at dipped beam axis be convex surface, two surfaces be all it is aspherical, image side surface 642 is near imaging surface 690
Point is located at the mirror surface center on the 4th lens image side surface 642.
5th lens 650 have negative refracting power, and are plastic cement material, and object side surface 651 is concave surface at dipped beam axis,
Image side surface 652 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 660 have positive refracting power, and are plastic cement material, and object side surface 661 is convex surface at dipped beam axis,
Image side surface 662 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 662 has at least in off-axis place
One convex surface.
7th lens 670 have negative refracting power, and are plastic cement material, and object side surface 671 is convex surface at dipped beam axis,
Image side surface 672 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 672 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 680 is glass, is set between the 7th lens 670 and imaging surface 690,
Have no effect on the focal length of optical camera 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 light
Learn pick-up lens group (not another label) and electronics photosensitive element 795.Optical camera lens group sequentially includes by object side to image side
One lens 710, aperture 700, the second lens 720, the third lens 730, the 4th lens 740, the 5th lens 750, the 6th lens
760, the 7th lens 770, infrared ray filter out filter element 780 and imaging surface 790.Wherein, electronics photosensitive element 795 is set into
In image planes 790.The single disengaged lens for having refracting power in optical camera lens group are seven.
First lens 710 have positive refracting power, and are plastic cement material, and object side surface 711 is concave surface at dipped beam axis,
Image side surface 712 is convex surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 720 have positive refracting power, and are plastic cement material, and object side surface 721 is convex surface at dipped beam axis,
Image side surface 722 is convex surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 730 have negative refracting power, and are plastic cement material, and object side surface 731 is convex surface at dipped beam axis,
Image side surface 732 is concave surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 740 have positive refracting power, and are plastic cement material, and object side surface 741 is concave surface at dipped beam axis,
Image side surface 742 at dipped beam axis be convex surface, two surfaces be all it is aspherical, image side surface 742 is near imaging surface 790
Point is located at the mirror surface center on the 4th lens image side surface 742.
5th lens 750 have negative refracting power, and are plastic cement material, and object side surface 751 is concave surface at dipped beam axis,
Image side surface 752 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 760 have positive refracting power, and are plastic cement material, and object side surface 761 is convex surface at dipped beam axis,
Image side surface 762 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 762 has at least in off-axis place
One convex surface.
7th lens 770 have negative refracting power, and are plastic cement material, and object side surface 771 is convex surface at dipped beam axis,
Image side surface 772 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 772 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 780 is glass, is set between the 7th lens 770 and imaging surface 790,
Have no effect on the focal length of optical camera 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 light
Learn pick-up lens group (not another label) and electronics photosensitive element 895.Optical camera lens group sequentially includes by object side to image side
One lens 810, aperture 800, the second lens 820, the third lens 830, the 4th lens 840, the 5th lens 850, the 6th lens
860, the 7th lens 870, infrared ray filter out filter element 880 and imaging surface 890.Wherein, electronics photosensitive element 895 is set into
In image planes 890.The single disengaged lens for having refracting power in optical camera lens group are seven.
First lens 810 have positive refracting power, and are plastic cement material, and object side surface 811 is convex surface at dipped beam axis,
Image side surface 812 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 820 have positive refracting power, and are plastic cement 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 negative refracting power, and are plastic cement material, and object side surface 831 is convex surface at dipped beam axis,
Image side surface 832 is concave surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 840 have positive refracting power, and are plastic cement material, and object side surface 841 is concave surface at dipped beam axis,
Image side surface 842 at dipped beam axis be convex surface, two surfaces be all it is aspherical, image side surface 842 is near imaging surface 890
Point is located at the mirror surface center on the 4th lens image side surface 842.
5th lens 850 have negative refracting power, and are plastic cement material, and object side surface 851 is concave surface at dipped beam axis,
Image side surface 852 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 860 have positive refracting power, and are plastic cement material, and object side surface 861 is convex surface at dipped beam axis,
Image side surface 862 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 862 has at least in off-axis place
One convex surface.
7th lens 870 have positive refracting power, and are plastic cement material, and object side surface 871 is convex surface at dipped beam axis,
Image side surface 872 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 872 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 880 is glass, is set between the 7th lens 870 and imaging surface 890,
Have no effect on the focal length of optical camera 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.
Above-mentioned image-taking device may be disposed in electronic device.Optical camera lens group provided by the invention is bent using seven tools
The lens of power are rolled over, wherein the 7th lens image side surface is concave surface at dipped beam axis.When meeting specified conditions, the 7th lens image side table
Face facilitates the back focal length of shortening optical camera lens group to maintain the miniaturization of optical camera lens group.In addition, helping to make
Image side end of the principal point of optical camera lens group far from optical camera lens group, to shorten the total length of optical camera lens group.
Furthermore also facilitates the image side end in optical camera lens group and configure enough refracting powers, keep optical camera lens group simultaneous simultaneously
Have wide viewing angle, low sensitivity and the characteristic of miniaturization.Optical camera lens group provided by the present invention can meet big light simultaneously
The demand of circle, wide viewing angle, miniaturization and high image quality.
Although the present invention has been disclosed by way of example above, it is not intended to limit the present invention..It is any to be familiar with this those skilled in the art,
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 when view
Subject to range defined in the attached claims.
Claims (30)
1. a kind of optical camera lens group sequentially includes by object side to image side: one first lens, one second lens, a third are saturating
Mirror, one the 4th lens, one the 5th lens, one the 6th lens and one the 7th lens, which is characterized in that second lens have just
Refracting power, the 6th lens object side surface with image side surface be all it is aspherical, the 7th lens image side surface is at dipped beam axis
Concave surface, the 7th lens image side surface have an at least convex surface in off-axis place, and the 7th lens object side surface and image side surface are all
It is aspherical；
Wherein, the lens sum in the optical camera lens group is seven, and the radius of curvature on the 7th lens image side surface is
R14, the focal length of the optical camera lens group are f, and the focal length of first lens is f1, and the focal length of second lens is f2, this
One lens object side surface a to imaging surface is TL in the distance on optical axis, and the maximum image height of the optical camera lens group is
ImgH, first lens, second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and should
The maximum value of refracting power is Powmax in 7th lens, meets following condition:
R14/f<0.75；
f2/|f1|<1.5；
TL/ImgH<3.0；And
|Powmax|<0.90。
2. optical camera lens group according to claim 1, which is characterized in that first lens, second lens, this
Three lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens are all single and disengaged lens.
3. optical camera lens group according to claim 1, which is characterized in that the 4th lens on optical axis with a thickness of
CT4, the 5th lens are in, with a thickness of CT5, meeting following condition on optical axis:
1.25<CT4/CT5<4.0。
4. optical camera lens group according to claim 1, which is characterized in that the curvature on the 7th lens image side surface half
Diameter is R14, and the focal length of the optical camera lens group is f, meets following condition:
R14/f<0.60。
5. optical camera lens group according to claim 4, which is characterized in that the curvature on the 7th lens image side surface half
Diameter is R14, and the focal length of the optical camera lens group is f, meets following condition:
R14/f<0.45。
6. optical camera lens group according to claim 1, which is characterized in that the focal length of first lens is f1, this
The focal length of two lens is f2, meets following condition:
f2/|f1|≤0.61。
7. optical camera lens group according to claim 1, which is characterized in that the first lens object side surface to the imaging
Face is TL in the distance on optical axis, and the maximum image height of the optical camera lens group is ImgH, meets following condition:
TL/ImgH≤1.70。
8. optical camera lens group according to claim 1, which is characterized in that the abbe number of the third lens is V3,
The abbe number of 5th lens is V5, meets following condition:
V3+V5<60。
9. optical camera lens group according to claim 1, which is characterized in that the 7th lens object side surface is in dipped beam axis
Place is convex surface.
10. a kind of image-taking device, characterized by comprising:
Optical camera lens group as described in claim 1；And
One electronics photosensitive element, wherein the electronics photosensitive element is set on the imaging surface of the optical camera lens group.
11. a kind of optical camera lens group sequentially includes by object side to image side: one first lens, one second lens, a third are saturating
Mirror, one the 4th lens, one the 5th lens, one the 6th lens and one the 7th lens, which is characterized in that the first lens image side table
Face is concave surface at dipped beam axis, which has positive refracting power, and the 6th lens object side surface and image side surface are all non-
Spherical surface, the 7th lens image side surface are concave surface at dipped beam axis, and the 7th lens image side surface has at least one in off-axis place
Convex surface, the 7th lens object side surface and image side surface are all aspherical；
Wherein, the lens sum in the optical camera lens group is seven, and the radius of curvature on the 7th lens image side surface is
R14, the focal length of the optical camera lens group are f, and the first lens object side surface a to imaging surface is TL in the distance on optical axis,
The maximum image height of the optical camera lens group is ImgH, first lens, second lens, the third lens, the 4th
The maximum value of refracting power is Powmax in lens, the 5th lens, the 6th lens and the 7th lens, meets following item
Part:
R14/f<0.75；
TL/ImgH<3.0；And
|Powmax|<0.90。
12. optical camera lens group according to claim 11, which is characterized in that first lens, are somebody's turn to do at second lens
The third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens are all single and disengaged lens.
13. optical camera lens group according to claim 11, which is characterized in that the 6th lens image side surface is in off-axis
Place has an at least convex surface.
14. optical camera lens group according to claim 11, which is characterized in that the 4th lens are in the thickness on optical axis
For CT4, the 5th lens are in, with a thickness of CT5, meeting following condition on optical axis:
1.25<CT4/CT5<4.0。
15. optical camera lens group according to claim 11, which is characterized in that the curvature on the 7th lens image side surface
Radius is R14, and the focal length of the optical camera lens group is f, meets following condition:
R14/f<0.60。
16. optical camera lens group according to claim 15, which is characterized in that the curvature on the 7th lens image side surface
Radius is R14, and the focal length of the optical camera lens group is f, meets following condition:
R14/f<0.45。
17. optical camera lens group according to claim 11, which is characterized in that first lens, are somebody's turn to do at second lens
The summation of the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens respectively at the thickness on optical axis
For Σ CT, the first lens object side surface to the 7th lens image side surface is Td in the distance on optical axis, meets following item
Part:
0.70≤ΣCT/Td<0.95。
18. optical camera lens group according to claim 11, which is characterized in that the abbe number of the third lens is
The abbe number of V3, the 5th lens are V5, meet following condition:
V3+V5<60。
19. optical camera lens group according to claim 11, which is characterized in that the 7th lens object side surface is in dipped beam
It is convex surface at axis.
20. a kind of image-taking device, characterized by comprising:
Optical camera lens group as claimed in claim 11；And
One electronics photosensitive element, wherein the electronics photosensitive element is set on the imaging surface of the optical camera lens group.
21. a kind of optical camera lens group sequentially includes by object side to image side: one first lens, one second lens, a third are saturating
Mirror, one the 4th lens, one the 5th lens, one the 6th lens and one the 7th lens, which is characterized in that second lens have just
Refracting power, the 6th lens object side surface with image side surface be all it is aspherical, the 7th lens image side surface is at dipped beam axis
Concave surface, the 7th lens image side surface have an at least convex surface in off-axis place, and the 7th lens object side surface and image side surface are all
It is aspherical；
Wherein, the lens sum in the optical camera lens group is seven, and the radius of curvature on the 7th lens image side surface is
R14, the focal length of the optical camera lens group are f, and the abbe number of second lens is V2, and the abbe number of the third lens is
V3, the first lens object side surface a to imaging surface are TL, the maximum imaging of the optical camera lens group in the distance on optical axis
Height is ImgH, first lens, second lens, the third lens, the 4th lens, the 5th lens, the 6th lens
And the 7th the maximum value of refracting power in lens be Powmax, meet following condition:
R14/f<0.75；
1.5<V2/V3<3.5；
TL/ImgH<3.0；And
|Powmax|<0.90。
22. optical camera lens group according to claim 21, which is characterized in that first lens, are somebody's turn to do at second lens
The third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens are all single and disengaged lens.
23. optical camera lens group according to claim 21, which is characterized in that the 6th lens image side surface is in off-axis
Place has an at least convex surface.
24. optical camera lens group according to claim 21, which is characterized in that the 4th lens are in the thickness on optical axis
For CT4, the 5th lens are in, with a thickness of CT5, meeting following condition on optical axis:
1.25<CT4/CT5<4.0。
25. optical camera lens group according to claim 21, which is characterized in that the curvature on the 7th lens image side surface
Radius is R14, and the focal length of the optical camera lens group is f, meets following condition:
R14/f<0.60。
26. optical camera lens group according to claim 25, which is characterized in that the curvature on the 7th lens image side surface
Radius is R14, and the focal length of the optical camera lens group is f, meets following condition:
R14/f<0.45。
27. optical camera lens group according to claim 21, which is characterized in that the first lens object side surface to this at
Image planes are TL in the distance on optical axis, and the maximum image height of the optical camera lens group is ImgH, meet following condition:
TL/ImgH≤1.70。
28. optical camera lens group according to claim 21, which is characterized in that the abbe number of the third lens is
The abbe number of V3, the 5th lens are V5, meet following condition:
V3+V5<60。
29. optical camera lens group according to claim 21, which is characterized in that the 7th lens object side surface is in dipped beam
It is convex surface at axis.
30. a kind of image-taking device, characterized by comprising:
Optical camera lens group as claimed in claim 21；And
One electronics photosensitive element, wherein the electronics photosensitive element is set on the imaging surface of the optical camera lens group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123250.9A CN109164556B (en) | 2015-07-01 | 2015-07-01 | Optical camera lens assembly and image capturing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510377516.2A CN106324811B (en) | 2015-07-01 | 2015-07-01 | Optical camera lens group, image-taking device and electronic device |
| CN201811123250.9A CN109164556B (en) | 2015-07-01 | 2015-07-01 | Optical camera lens assembly and image capturing device |
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| CN109164556A true CN109164556A (en) | 2019-01-08 |
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| CN201811119810.3A Active CN109061855B (en) | 2015-07-01 | 2015-07-01 | Optical camera lens assembly and image capturing device |
| CN201811123250.9A Active CN109164556B (en) | 2015-07-01 | 2015-07-01 | Optical camera lens assembly and image capturing device |
| CN201811128157.7A Active CN109116527B (en) | 2015-07-01 | 2015-07-01 | Optical camera lens assembly and image capturing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109061855A (en) | 2018-12-21 |
| CN109164556B (en) | 2021-01-12 |
| CN109061855B (en) | 2020-10-30 |
| CN106324811B (en) | 2018-11-02 |
| CN109116527A (en) | 2019-01-01 |
| CN109116527B (en) | 2021-04-20 |
| CN106324811A (en) | 2017-01-11 |
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