CN106970452B - Imagery optical lens group, image-taking device and electronic device - Google Patents
Imagery optical lens group, image-taking device and electronic device Download PDFInfo
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- CN106970452B CN106970452B CN201610020537.3A CN201610020537A CN106970452B CN 106970452 B CN106970452 B CN 106970452B CN 201610020537 A CN201610020537 A CN 201610020537A CN 106970452 B CN106970452 B CN 106970452B
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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 imagery optical lens group, image-taking device and electronic device, imagery optical lens group sequentially includes the first lens, the second lens, the third lens, the 4th lens and the 5th lens by object side to image side.First lens have positive refracting power, and object side surface is convex surface at dipped beam axis.Second lens have negative refracting power, and object side surface is concave surface at dipped beam axis.Two surface of the third lens is all aspherical.4th lens have negative refracting power, and object side surface is concave surface at dipped beam axis, and image side surface is concave surface at dipped beam axis, and image side surface has an at least convex surface in off-axis place, and two surfaces are all aspherical.5th lens have positive refracting power, and two surfaces are all aspherical.The lens of imagery optical lens group are five, and in all having an airspace on optical axis between each two adjacent lens.Invention additionally discloses the image-taking device with above-mentioned imagery optical lens group and with the electronic device of image-taking device.
Description
Technical field
The present invention relates to a kind of imagery optical lens group, image-taking device and electronic device, in particular to one kind is suitable for
The imagery optical lens group and image-taking device of electronic device.
Background technique
With flourishing for miniaturization pick-up lens, the demand of minisize image acquisition module is increasingly improved, and general camera lens
The photosensitive element of head is nothing more than being photosensitive coupling element (Charge Coupled Device, CCD) or Complimentary Metal-Oxide half
Two kinds of conductor element (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor), and with
Progressing greatly for semiconductor technology so that the Pixel Dimensions of photosensitive element reduce, along with electronic product is good and light with function now
Thin short and small external form is development trend, and therefore, the miniaturization pick-up lens for having good image quality becomes existing market
On mainstream.
In recent years, there is the optical lens for characteristic of looking in the distance also gradually to be equipped on lightening high-order electronic product, with
Meet various demands of the high-order electronic product in pixel and image quality.However, traditional telephoto lens have overall length it is too long,
The disadvantages of aperture is too small, image quality is bad and volume is excessive, and it is difficult to meet the needs of high standard electronic product.Therefore, it mentions
Characteristic and it is able to satisfy the optical system of high image quality demand simultaneously with looking in the distance for a kind of, actually current industry suddenly to be solved
One of problem.
Summary of the invention
The purpose of the present invention is to provide a kind of imagery optical lens group, image-taking device and electronic devices, wherein
Four lens have negative refracting power, and the 4th lens object side surface and image side surface are all concave surface at dipped beam axis, help to shorten
The back focal length of imagery optical lens group.In addition, the 4th lens image side surface has an at least convex surface in off-axis place, shadow can be suppressed
As the chief ray angle (Chief Ray Angle, CRA) on periphery, enable the clearer pick-up image of photosensitive element.In addition, the
Five lens have positive refracting power, can correct the first lens to the 4th lens because refracting power it is too strong caused by aberration.It is special when meeting
When fixed condition, help to slow down the second lens perimeter change in shape, avoid because second lens face type overbending due to generate it is excessive
Stray light.In addition, helping to provide imagery optical lens group back focal length appropriate, the face type overbending of the 5th lens is avoided
And cause back focal length too long or too short.Furthermore help to be promoted the characteristic of looking in the distance of imagery optical lens group.
The present invention provides a kind of imagery optical lens group, by object side to image side sequentially include the first lens, the second lens,
The third lens, the 4th lens and the 5th lens.First lens have positive refracting power, and object side surface is convex at dipped beam axis
Face.Second lens have negative refracting power, and object side surface is concave surface at dipped beam axis.The third lens object side surface and image side surface
It is all aspherical.4th lens have negative refracting power, and object side surface is concave surface at dipped beam axis, and image side surface is in dipped beam axis
Place is concave surface, and image side surface has an at least convex surface in off-axis place, and object side surface is all aspherical with image side surface.5th
Lens have positive refracting power, and object side surface is all aspherical with image side surface.The lens sum of imagery optical lens group is
Five.In equal on optical axis between each two adjacent lens in first lens, the second lens, the third lens, the 4th lens and the 5th lens
With an airspace.The focal length of imagery optical lens group is f, and the radius of curvature of the second lens object side surface is R3, second
The radius of curvature on lens image side surface is R4, and the radius of curvature on the 5th lens image side surface is R10, meets following condition:
(R3+R4)/(R3-R4)<0.50；And
f/|R10|<1.20。
The present invention provides a kind of image-taking device, include imagery optical lens group above-mentioned and an electronics photosensitive element,
Wherein electronics photosensitive element is set on an imaging surface of imagery optical lens group.
The present invention provides a kind of electronic device, includes image-taking device above-mentioned.
The present invention separately provides a kind of imagery optical lens group, by object side to image side sequentially include the first lens, second thoroughly
Mirror, the third lens, the 4th lens and the 5th lens.First lens have positive refracting power, and object side surface is at dipped beam axis
Convex surface.Second lens have negative refracting power, and object side surface is concave surface at dipped beam axis.The third lens object side surface and image side table
Face is all aspherical.4th lens have negative refracting power, and object side surface is concave surface at dipped beam axis, and image side surface is in dipped beam
It is concave surface at axis, image side surface has an at least convex surface in off-axis place, and object side surface is all aspherical with image side surface.The
Five lens have positive refracting power, and object side surface is all aspherical with image side surface.The lens sum of imagery optical lens group
It is five.In on optical axis between each two adjacent lens in first lens, the second lens, the third lens, the 4th lens and the 5th lens
All have an airspace.The focal length of imagery optical lens group is f, and the radius of curvature of the second lens object side surface is R3, the
The radius of curvature of two lens image sides surface is R4, and the maximum image height of imagery optical lens group is ImgH, is met following
Condition:
(R3+R4)/(R3-R4)<0.50；And
0.25<ImgH/f<0.55。
The present invention separately provides a kind of image-taking device, includes imagery optical lens group above-mentioned and the photosensitive member of an electronics
Part, wherein electronics photosensitive element is set on an imaging surface of imagery optical lens group.
The present invention separately provides a kind of electronic device, includes image-taking device above-mentioned.
When (R3+R4)/(R3-R4) meets above-mentioned condition, help to slow down the second lens perimeter change in shape, avoid because
Second lens face type overbending and generate excessive stray light.
As f/ | R10 | when meeting above-mentioned condition, helps to provide imagery optical lens group back focal length appropriate, avoid the
The face type overbending of five lens and cause back focal length too long or too short.
When ImgH/f meets above-mentioned condition, facilitate the characteristic of looking in the distance for promoting imagery optical 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 the schematic diagram according to a kind of electronic device of the invention；
Figure 18 is painted the schematic diagram according to another electronic device of the invention；
Figure 19 is painted the schematic diagram according to still another electronic device of the invention.
[symbol description]
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
Infrared ray filters out optical element ︰ 160,260,360,460,560,660,760,860
Cheng Xiang Mian ︰ 170,270,370,470,570,670,770,870
Electronics photosensitive element ︰ 180,280,380,480,580,680,780,880
The 5th lens image side surface BL ︰ is to imaging surface in the distance on optical axis
The f-number of Fno ︰ imagery optical lens group
The focal length of f ︰ imagery optical lens group
The focal length of the second lens of f2 ︰
The focal length of f3 ︰ the third lens
The focal length of the 4th lens of f4 ︰
The half at maximum visual angle in HFOV ︰ imagery optical lens group
ImgH: the maximum image height of imagery optical lens group
The radius of curvature of R3 ︰ the second lens object side surface
The radius of curvature on the second lens image side R4 ︰ surface
The radius of curvature of the 4th lens object side surface R7 ︰
The radius of curvature on the 4th lens image side surface R8 ︰
The radius of curvature on the 5th lens image side surface R10 ︰
TL: the first lens object side surface is to imaging surface in the distance on optical axis
T12: the first lens and the second lens are in the spacing distance on optical axis
T23: the second lens and the third lens are in the spacing distance on optical axis
T34: the third lens and the 4th lens are in the spacing distance on optical axis
T45: the four lens and the 5th lens are in the spacing distance on optical axis
The abbe number of V1: the first lens
The abbe number of V2: the second lens
V3: the abbe number of the third lens
The abbe number of V4: the four lens
The abbe number of V5: the five lens
Specific embodiment
Structural principle and working principle of the invention are described in detail with reference to the accompanying drawing:
Imagery optical lens group by object side to image side sequentially include the first lens, the second lens, the third lens, the 4th thoroughly
Mirror and the 5th lens.Wherein, the lens sum in imagery optical lens group is five.
In on optical axis between each two adjacent lens in first lens, the second lens, the third lens, the 4th lens and the 5th lens
An airspace is all had, that is, the first lens, the second lens, the third lens, the 4th lens and the 5th lens can be five lists
One disengaged (non-bonding) lens.Since the more disengaged lens of the technique of cemented lens are complicated, especially on the joint surface of two lens
The curved surface of high accuracy need to be possessed, to reach the high adaptation when engagement of two lens, and during engagement, be more likely to because partially
Position and cause move axis defect, influence whole optical imagery quality.Therefore, the first lens in image capture microscope group are to the 5th lens
The problem that five single disengaged lens configurations can be used, and then be effectively improved cemented lens.
First lens have positive refracting power, and object side surface is convex surface at dipped beam axis.Whereby, it is possible to provide imagery optical
The enough positive refracting powers of lens group, and help to shorten the total length of imagery optical lens group.
Second lens have negative refracting power, and object side surface is concave surface at dipped beam axis.Whereby, the first lens institute can be corrected
The aberration of generation is to promote image quality.
The third lens object side surface can have an at least concave surface in off-axis place, and the third lens image side surface is located also in off-axis
There can be an at least concave surface.Whereby, the light that can suppress off-axis visual field is incident in angle on photosensitive element, to increase image sense
The receiving efficiency of optical element, the aberration of further modified off-axis visual field.
4th lens have negative refracting power, and object side surface is concave surface in dipped beam axis, and image side surface is at dipped beam axis
Concave surface.Whereby, facilitate the back focal length of shortening imagery optical lens group.In addition, the 4th lens image side surface is in off-axis place's tool
There is an at least convex surface, the chief ray angle on image periphery can be suppressed, enables the clearer pick-up image of photosensitive element.
5th lens have positive refracting power, and object side surface can be convex surface in dipped beam axis, and image side surface can in dipped beam axis
For convex surface.Whereby, can correct the first lens to the 4th lens because refracting power it is too strong caused by aberration.
The radius of curvature of second lens object side surface is R3, and the radius of curvature on the second lens image side surface is R4, is met
Following condition: (R3+R4)/(R3-R4) < 0.50.Whereby, facilitate to slow down the second lens perimeter change in shape, avoid because of second
Lens face type overbending and generate excessive stray light.Preferably, it can the following condition of further satisfaction: (R3+R4)/(R3-
R4)<0.It more preferably, can the following condition of further satisfaction: -2.5 < (R3+R4)/(R3-R4) < 0.
The focal length of imagery optical lens group is f, and the radius of curvature on the 5th lens image side surface is R10, is met following
Condition: f/ | R10 | < 1.20.Whereby, facilitate to provide imagery optical lens group back focal length appropriate, avoid the 5th lens
Face type overbending and cause back focal length too long or too short.It specifically, is convex at dipped beam axis when the 5th lens image side surface
When face, above-mentioned condition can avoid back focal length and excessively elongate.When the 5th lens image side surface is concave surface at dipped beam axis, above-mentioned item
Part, which then can avoid back focal length, excessively to be shortened.Preferably, it can the following condition of further satisfaction: f/ | R10 | < 0.75.
Maximum image height (i.e. effective sensing region diagonal line overall length of electronics photosensitive element of imagery optical lens group
Half) be ImgH, the focal length of imagery optical lens group is f, meets following condition: 0.25 < ImgH/f < 0.55.Whereby,
Facilitate the characteristic of looking in the distance of promotion imagery optical lens group.
First lens and the second lens are T12 in the spacing distance on optical axis, and the second lens and the third lens are on optical axis
Spacing distance be T23, the third lens and the 4th lens in the spacing distance on optical axis be T34, the 4th lens and the 5th lens
It is T45 in the spacing distance on optical axis, following condition: 1.0 < T34/ (T12+T23+T45) < 4.0 can be met.Whereby, it helps
In making the spacing distance between each two adjacent lens obtain better suited distribution to reduce the susceptibility of imagery optical lens group,
Imagery optical lens group is set to have both the effect of looking in the distance simultaneously.
The focal length of second lens is f2, and the focal length of the 4th lens is f4, can meet following condition: f4/f2 < 1.0.It borrows
This helps that the second lens and the refracting power of the 4th lens is made suitably to arrange in pairs or groups, and the change in shape to avoid the second lens is excessive.
The abbe number of first lens is V1, and the abbe number of the second lens is V2, and the abbe number of the third lens is V3,
The abbe number of 4th lens is V4, and the abbe number of the 5th lens is V5, can meet following condition: 0.45 < (V2+V3+
V5)/(V1+V4)<0.75.Whereby, it can be obtained between color difference amendment and astigmatism amendment well balanced.
The third lens and the 4th lens are T34, the 5th lens image side surface a to imaging surface in the spacing distance on optical axis
It is BL in the distance on optical axis, following condition: 1.20 < T34/BL < 2.5 can be met.Whereby, it can control image chief ray angle
Distribution and variation, effectively to promote the receiving efficiency of image photosensitive element.
The radius of curvature of 4th lens object side surface is R7, and the radius of curvature on the 4th lens image side surface is R8, can be expired
Foot column condition: -1.0 < R7/R8 < 0.Whereby, the radius of curvature on the 4th lens object side surface and image side surface facilitates further
Shorten the back focal length of imagery optical lens group.
First lens object side surface is TL in the distance on optical axis to imaging surface, and the focal length of imagery optical lens group is f,
It can meet following condition: 0.75 < TL/f < 1.10.Whereby, the total length of imagery optical lens group can be shortened, with season at
As there is characteristic of looking in the distance with optical lens group.
The focal length of imagery optical lens group is f, and the focal lengths of the second lens is f2, and the focal length of the third lens is f3, the 4th
The focal length of lens is f4, can meet following condition: -4.0 < (f/f2)+(f/f3)+(f/f4) < -2.0.Whereby, facilitate to repair
Image curvature caused by positive first lens.
First lens and the second lens are T12 in the spacing distance on optical axis, and the second lens and the third lens are on optical axis
Spacing distance be T23, following condition: 0 < T23/T12 < 1.75 can be met.Whereby, the first lens and the second lens be can avoid
Between spacing it is too short, facilitate reduce assembling difficulty to promote assembling yield.
The abbe number of 4th lens is V4, and the abbe numbers of the 5th lens is V5, can meet following condition: 1.8 <
V4/V5<3.5.Whereby, facilitate to correct color difference.
The focal length of imagery optical lens group is f, and the focal length of the third lens is f3, can meet following condition: -1.2 < f/
f3≦0.Whereby, the effect of lens error correction can be strengthened, effectively to promote image quality.
The invention discloses imagery optical lens group in, the configuration of aperture can for preposition aperture or in set aperture.Wherein
Preposition aperture implies that aperture is set between object and the first lens, in set aperture then and indicate aperture be set to the first lens at
Between image planes.If aperture is preposition aperture, the outgoing pupil (Exit Pupil) of imagery optical lens group and imaging surface can be made to generate
Longer distance makes it have telecentricity (Telecentric) effect, and the CCD or CMOS that can increase electronics photosensitive element are received
The efficiency of image；Aperture is set if in, is contributed to the field angle for expanding imagery optical lens group, is made imagery optical lens
Group has the advantage of wide-angle lens.
The invention discloses imagery optical lens group in, the material of lens can be plastic cement or glass.When the material of lens
For glass, the freedom degree of refracting power configuration can be increased.Separately working as lens material is plastic cement, then production cost can be effectively reduced.
In addition, can be aspherical to be easy to be fabricated to the shape other than spherical surface in being arranged on lens surface aspherical (ASP), obtain compared with
More controlled variables uses the number of lens to cut down aberration, and then needed for reducing, therefore imaging can be effectively reduced and use up
Learn the total length of lens group.
The invention discloses imagery optical lens group in, if lens surface is convex surface and when not defining the convex surface position,
Then indicate that convex surface can be located at lens surface dipped beam axis；If lens surface is concave surface and does not define the concave surface position, then it represents that
Concave surface can be located at lens surface dipped beam axis.If the refracting power or focal length of lens do not define its regional location, then it represents that this is thoroughly
The refracting power or focal length of mirror can be refracting power or focal length of the lens at dipped beam axis.
The invention discloses imagery optical lens group in, the imaging surface of imagery optical lens group is according to its corresponding electronics
The difference of photosensitive element can be a flat surface or have the curved surface of any curvature, particularly relate to concave surface towards the curved surface toward object side direction.
The invention discloses imagery optical lens group in, may be provided at least a diaphragm, position may be disposed at first
Before lens, between each lens or after last lens, such as credit light diaphragm (Glare Stop) of the type of the diaphragm or
Field stop (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 imagery optical lens group and electronics photosensitive element,
Wherein electronics photosensitive element is set on the imaging surface of imagery optical lens group.Preferably, the image-taking device can be further
Include lens barrel, support device (Holder Member) or combinations thereof.
Figure 17,18 and 19 are please referred to, image-taking device 10 many-sided can be applied to smartphone (as shown in figure 17), plate
Computer (as shown in figure 18) and wearable device (as shown in figure 19) etc..Preferably, electronic device can further include control
Unit, display unit, storage element, random access memory (RAM) or combinations thereof.
The more visual demand of imagery optical lens group of the invention is applied in the optical system of mobile focusing, and has both excellent
The characteristic of good lens error correction and good image quality.The present invention many-sided can also be applied to three-dimensional (3D) image capture, digital phase
Machine, mobile device, tablet computer, intelligent TV, network monitoring device, drive recorder, reversing developing apparatus, body-sensing trip
In the electronic devices such as gaming machine and wearable device.Before to take off electronic device only be exemplarily to illustrate practice example of the invention
Son not limits the operation strategies of 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 includes that imaging is used
Optical lens group (not another label) and electronics photosensitive element 180.Imagery optical lens group sequentially includes light by object side to image side
The 100, first lens 110 of circle, the second lens 120, the third lens 130, the 4th lens 140, the 5th lens 150, infrared ray filter out
Filter element (IR-cutFilter) 160 and imaging surface 170.Wherein, electronics photosensitive element 180 is set on imaging surface 170.At
As being five with the lens (110-150) of optical lens group.First lens 110, the second lens 120, the third lens the 130, the 4th
In all having an airspace on optical axis between each two adjacent lens in lens 140 and the 5th lens 150.
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 negative refracting power, and are plastic cement material, and object side surface 121 is concave surface at dipped beam axis,
Image side surface 122 is convex surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 130 are plastic cement material, and object side surface 131 is plane at dipped beam axis, and image side surface 132 is in close
Be plane at optical axis, two surfaces be all it is aspherical, object side surface 131 has an at least concave surface, image side table in off-axis place
Face 132 has an at least concave surface in off-axis place.
4th lens 140 have negative refracting power, and are plastic cement material, and object side surface 141 is concave surface at dipped beam axis,
Image side surface 142 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 142 has at least in off-axis place
One convex surface.
5th lens 150 have positive refracting power, and are plastic cement material, and object side surface 151 is convex surface at dipped beam axis,
Image side surface 152 is plane at dipped beam axis, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 160 is glass, is set between the 5th lens 150 and imaging surface 170,
Have no effect on the focal length of optical shooting 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 imagery optical lens group of first embodiment, the focal length of imagery optical lens group is f, and imagery optical is saturating
The f-number (F-number) of microscope group is Fno, and the half at maximum visual angle is HFOV in imagery optical lens group, and numerical value is such as
Under: f=6.29 millimeters (mm), Fno=3.00, HFOV=24.9 degree (deg.).
The abbe number of first lens 110 is V1, and the abbe number of the second lens 120 is V2, the dispersion of the third lens 130
Coefficient is V3, and the abbe number of the 4th lens 140 is V4, and the abbe number of the 5th lens 150 is V5, meets following condition:
(V2+V3+V5)/(V1+V4)=0.54.
The abbe number of 4th lens 140 is V4, and the abbe number of the 5th lens 150 is V5, meets following condition:
V4/V5=2.75.
First lens 110 and the second lens 120 are T12, the second lens 120 and the third lens in the spacing distance on optical axis
130 in the spacing distance on optical axis be T23, meet following condition: T23/T12=0.32.
First lens 110 and the second lens 120 are T12, the second lens 120 and the third lens in the spacing distance on optical axis
130 in the spacing distance on optical axis be T23, the third lens 130 and the 4th lens 140 in the spacing distance on optical axis be T34,
Four lens 140 and the 5th lens 150 are T45 in the spacing distance on optical axis, meet following condition: T34/ (T12+T23+
T45)=2.73.
The third lens 130 and the 4th lens 140 are T34 in the spacing distance on optical axis, the 5th lens image side surface 152 to
Imaging surface 170 is BL in the distance on optical axis, meets following condition: T34/BL=1.84.
First lens object side surface 111 to imaging surface 170 in the distance on optical axis be TL, the coke of imagery optical lens group
Away from for f, meet following condition: TL/f=0.89.
The maximum image height of imagery optical lens group is ImgH, and the focal length of imagery optical lens group is f, is met
Following condition: ImgH/f=0.47.
The radius of curvature of second lens object side surface 121 is R3, and the radius of curvature on the second lens image side surface 122 is R4,
It meets following condition: (R3+R4)/(R3-R4)=- 1.15.
The radius of curvature of 4th lens object side surface 141 is R7, and the radius of curvature on the 4th lens image side surface 142 is R8,
It meets following condition: R7/R8=-0.06.
The focal length of imagery optical lens group is f, and the radius of curvature on the 5th lens image side surface 152 is R10, under meeting
Column condition: f/ | R10 |=0.
The focal length of imagery optical lens group is f, and the focal length of the second lens 120 is f2, and the focal length of the third lens 130 is
The focal length of f3, the 4th lens 140 are f4, meet following condition: (f/f2)+(f/f3)+(f/f4)=- 2.55.
The focal length of imagery optical lens group is f, and the focal length of the third lens 130 is f3, meets following condition: f/f3=
0。
The focal length of second lens 120 is f2, and the focal length of the 4th lens 140 is f4, meets following condition: f4/f2=
0.80。
Cooperation is referring to following table one and table two.
Table one is the detailed structured data of Fig. 1 first embodiment, and wherein the unit of radius of curvature, thickness and focal length is millimetre
(mm), and surface 0 to 14 is sequentially indicated by the surface of object side to image side.Table two is the aspherical surface data in first embodiment,
In, k is the conical surface coefficient in aspheric curve equation, and A4 to A16 then indicates each the 4 to 16th rank asphericity coefficient of surface.This
Outside, following embodiment table is the schematic diagram and aberration curve figure of corresponding each embodiment, and the definition of data is all with the in table
The definition of the table one and table two of one embodiment is identical, and not in this to go forth.
<second embodiment>
Referring to figure 3. and Fig. 4, wherein Fig. 3 is painted the image-taking device schematic diagram according to second embodiment of the invention, Fig. 4 by
Left-to-right is sequentially spherical aberration, astigmatism and the distortion curve of second embodiment.From the figure 3, it may be seen that image-taking device includes that imaging is used
Optical lens group (not another label) and electronics photosensitive element 280.Imagery optical lens group sequentially includes by object side to image side
One lens 210, aperture 200, the second lens 220, the third lens 230, the 4th lens 240, the 5th lens 250, infrared ray filter out
Filter element 260 and imaging surface 270.Wherein, electronics photosensitive element 280 is set on imaging surface 270.Imagery optical lens group
Lens (210-250) be five.First lens 210, the second lens 220, the third lens 230, the 4th lens 240 and the 5th are saturating
In all having an airspace on optical axis between each two adjacent lens in mirror 250.
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 convex surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 220 have negative refracting power, and are plastic cement material, and object side surface 221 is concave surface at dipped beam axis,
Image side surface 222 is plane 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 concave surface at dipped beam axis,
Image side surface 232 is convex surface at dipped beam axis, two surfaces be all it is aspherical, object side surface 231 has at least in off-axis place
One concave surface, image side surface 232 have an at least concave surface in off-axis place.
4th lens 240 have negative refracting power, and are plastic cement material, and object side surface 241 is concave surface at dipped beam axis,
Image side surface 242 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 242 has at least in off-axis place
One convex surface.
5th lens 250 have positive refracting power, and are plastic cement material, and object side surface 251 is convex surface at dipped beam axis,
Image side surface 252 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 260 is glass, is set between the 5th lens 250 and imaging surface 270,
Have no effect on the focal length of optical shooting lens group.
It please cooperate referring to following table three and table four.
In second embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following table
Definition is all identical with the first embodiment, and not in this to go forth.
<3rd embodiment>
Referring to figure 5. and Fig. 6, wherein Fig. 5 is painted the image-taking device schematic diagram according to third embodiment of the invention, Fig. 6 by
Left-to-right is sequentially spherical aberration, astigmatism and the distortion curve of 3rd embodiment.As shown in Figure 5, image-taking device includes that imaging is used
Optical lens group (not another label) and electronics photosensitive element 380.Imagery optical lens group sequentially includes light by object side to image side
The 300, first lens 310 of circle, the second lens 320, the third lens 330, the 4th lens 340, the 5th lens 350, infrared ray filter out
Filter element 360 and imaging surface 370.Wherein, electronics photosensitive element 380 is set on imaging surface 370.Imagery optical lens group
Lens (310-350) be five.First lens 310, the second lens 320, the third lens 330, the 4th lens 340 and the 5th are saturating
In all having an airspace on optical axis between each two adjacent lens in mirror 350.
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 negative refracting power, and are plastic cement material, and object side surface 321 is concave 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, two surfaces be all it is aspherical, object side surface 331 has at least in off-axis place
One concave surface, image side surface 332 have an at least concave surface in off-axis place.
4th lens 340 have negative refracting power, and are plastic cement material, and object side surface 341 is concave surface at dipped beam axis,
Image side surface 342 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 342 has at least in off-axis place
One convex surface.
5th lens 350 have positive refracting power, and are plastic cement material, and object side surface 351 is convex surface at dipped beam axis,
Image side surface 352 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 360 is glass, is set between the 5th lens 350 and imaging surface 370,
Have no effect on the focal length of optical shooting lens group.
It please cooperate referring to following table five and table six.
In 3rd embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following table
Definition is all identical with the first embodiment, and not in this to go forth.
<fourth embodiment>
Please refer to Fig. 7 and Fig. 8, wherein Fig. 7 is painted the image-taking device schematic diagram according to fourth embodiment of the invention, Fig. 8 by
Left-to-right is sequentially spherical aberration, astigmatism and the distortion curve of fourth embodiment.As shown in Figure 7, image-taking device includes that imaging is used
Optical lens group (not another label) and electronics photosensitive element 480.Imagery optical lens group sequentially includes light by object side to image side
The 400, first lens 410 of circle, the second lens 420, the third lens 430, the 4th lens 440, the 5th lens 450, infrared ray filter out
Filter element 460 and imaging surface 470.Wherein, electronics photosensitive element 480 is set on imaging surface 470.Imagery optical lens group
Lens (410-450) be five.First lens 410, the second lens 420, the third lens 430, the 4th lens 440 and the 5th are saturating
In all having an airspace on optical axis between each two adjacent lens in mirror 450.
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 concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 420 have negative refracting power, and are plastic cement material, and object side surface 421 is concave surface at dipped beam axis,
Image side surface 422 is convex 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 concave surface at dipped beam axis,
Image side surface 432 is concave surface at dipped beam axis, two surfaces be all it is aspherical, object side surface 431 has at least in off-axis place
One concave surface, image side surface 432 have an at least concave surface in off-axis place.
4th lens 440 have negative refracting power, and are plastic cement material, and object side surface 441 is concave surface at dipped beam axis,
Image side surface 442 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 442 has at least in off-axis place
One convex surface.
5th lens 450 have positive refracting power, and are plastic cement material, and object side surface 451 is convex surface at dipped beam axis,
Image side surface 452 is convex surface at dipped beam axis, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 460 is glass, is set between the 5th lens 450 and imaging surface 470,
Have no effect on the focal length of optical shooting 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 imaging
With optical lens group (not another label) and electronics photosensitive element 580.Imagery optical lens group sequentially includes by object side to image side
Aperture 500, the first lens 510, the second lens 520, the third lens 530, the 4th lens 540, the 5th lens 550, infrared ray filter
Except filter element 560 and imaging surface 570.Wherein, electronics photosensitive element 580 is set on imaging surface 570.Imagery optical lens
The lens (510-550) of group are five.First lens 510, the second lens 520, the third lens 530, the 4th lens 540 and the 5th
In all having an airspace on optical axis between each two adjacent lens in lens 550.
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 negative refracting power, and are plastic cement material, and object side surface 521 is concave 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, two surfaces be all it is aspherical, object side surface 531 has at least in off-axis place
One concave surface, image side surface 532 have an at least concave surface in off-axis place.
4th lens 540 have negative refracting power, and are plastic cement material, and object side surface 541 is concave surface at dipped beam axis,
Image side surface 542 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 542 has at least in off-axis place
One convex surface.
5th lens 550 have positive refracting power, and are plastic cement material, and object side surface 551 is convex surface at dipped beam axis,
Image side surface 552 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 560 is glass, is set between the 5th lens 550 and imaging surface 570,
Have no effect on the focal length of optical shooting 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 include at
As using optical lens group (not another label) and electronics photosensitive element 680.Imagery optical lens group is sequentially wrapped by object side to image side
Containing aperture 600, the first lens 610, the second lens 620, the third lens 630, the 4th lens 640, the 5th lens 650, infrared ray
Filter out filter element 660 and imaging surface 670.Wherein, electronics photosensitive element 680 is set on imaging surface 670.Imagery optical is saturating
The lens (610-650) of microscope group are five.First lens 610, the second lens 620, the third lens 630, the 4th lens 640 and
In all having an airspace on optical axis between each two adjacent lens in five lens 650.
First lens 610 have positive 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 negative refracting power, and are plastic cement material, and object side surface 621 is concave surface at dipped beam axis,
Image side surface 622 at dipped beam axis be convex surface, two surfaces be all it is aspherical,.
The third lens 630 have negative refracting power, and are plastic cement material, and object side surface 631 is concave surface at dipped beam axis,
Image side surface 632 is convex surface at dipped beam axis, two surfaces be all it is aspherical, object side surface 631 has at least in off-axis place
One concave surface, image side surface 632 have an at least concave surface in off-axis place.
4th lens 640 have negative refracting power, and are plastic cement material, and object side surface 641 is concave surface at dipped beam axis,
Image side surface 642 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 642 has at least in off-axis place
One convex surface.
5th lens 650 have positive 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.
The material that infrared ray filters out filter element 660 is glass, is set between the 5th lens 650 and imaging surface 670,
Have no effect on the focal length of optical shooting 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 include at
As using optical lens group (not another label) and electronics photosensitive element 780.Imagery optical lens group is sequentially wrapped by object side to image side
Containing aperture 700, the first lens 710, the second lens 720, the third lens 730, the 4th lens 740, the 5th lens 750, infrared ray
Filter out filter element 760 and imaging surface 770.Wherein, electronics photosensitive element 780 is set on imaging surface 770.Imagery optical is saturating
The lens (710-750) of microscope group are five.First lens 710, the second lens 720, the third lens 730, the 4th lens 740 and
In all having an airspace on optical axis between each two adjacent lens in five lens 750.
First lens 710 have positive refracting power, and are plastic cement material, and object side surface 711 is convex 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 negative refracting power, and are plastic cement material, and object side surface 721 is concave surface at dipped beam axis,
Image side surface 722 at dipped beam axis be concave surface, two surfaces be all it is aspherical,.
The third lens 730 have positive refracting power, and are plastic cement material, and object side surface 731 is concave surface at dipped beam axis,
Image side surface 732 is convex surface at dipped beam axis, two surfaces be all it is aspherical, object side surface 731 has at least in off-axis place
One concave surface, image side surface 732 have an at least concave surface in off-axis place.
4th lens 740 have negative refracting power, and are plastic cement material, and object side surface 741 is concave surface at dipped beam axis,
Image side surface 742 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 742 has at least in off-axis place
One convex surface.
5th lens 750 have positive refracting power, and are plastic cement material, and object side surface 751 is convex surface at dipped beam axis,
Image side surface 752 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 760 is glass, is set between the 5th lens 750 and imaging surface 770,
Have no effect on the focal length of optical shooting 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 include at
As using optical lens group (not another label) and electronics photosensitive element 880.Imagery optical lens group is sequentially wrapped by object side to image side
Containing aperture 800, the first lens 810, the second lens 820, the third lens 830, the 4th lens 840, the 5th lens 850, infrared ray
Filter out filter element 860 and imaging surface 870.Wherein, electronics photosensitive element 880 is set on imaging surface 870.Imagery optical is saturating
The lens (810-850) of microscope group are five.First lens 810, the second lens 820, the third lens 830, the 4th lens 840 and
In all having an airspace on optical axis between each two adjacent lens in five lens 850.
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 convex surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 820 have negative refracting power, and are plastic cement material, and object side surface 821 is concave 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 concave surface at dipped beam axis,
Image side surface 832 is convex surface at dipped beam axis, two surfaces be all it is aspherical, object side surface 831 has at least in off-axis place
One concave surface, image side surface 832 have an at least concave surface in off-axis place.
4th lens 840 have negative refracting power, and are plastic cement material, and object side surface 841 is concave surface at dipped beam axis,
Image side surface 842 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 842 has at least in off-axis place
One convex surface.
5th lens 850 have positive refracting power, and are plastic cement material, and object side surface 851 is convex surface at dipped beam axis,
Image side surface 852 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 860 is glass, is set between the 5th lens 850 and imaging surface 870,
Have no effect on the focal length of optical shooting lens group.
It please cooperate referring to following table 15 and table 16.
In 8th embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following table
Definition is all identical with the first embodiment, and not in this to go forth.
Although the present invention is disclosed above with embodiment, however, it is not to limit the invention, any to be familiar with this skill
Person, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations, therefore protection scope of the present invention is worked as
Subject to the scope of which is defined in the appended claims.
Claims (23)
1. a kind of imagery optical lens group, which is characterized in that sequentially include by object side to image side:
One first lens, have positive refracting power, and object side surface is convex surface at dipped beam axis；
One second lens, have negative refracting power, and object side surface is concave surface at dipped beam axis；
One the third lens, object side surface are all aspherical with image side surface；
One the 4th lens have negative refracting power, and object side surface is concave surface at dipped beam axis, and image side surface is at dipped beam axis
Concave surface, image side surface have an at least convex surface in off-axis place, and object side surface is all aspherical with image side surface；And
One the 5th lens have positive refracting power, and object side surface is all aspherical with image side surface；
Wherein, the lens sum of the imagery optical lens group be five, first lens, second lens, the third lens,
In all having an airspace on optical axis between each two adjacent lens in 4th lens and the 5th lens；
Wherein, the focal length of the imagery optical lens group is f, and the radius of curvature of the second lens object side surface is R3, this second
The radius of curvature on lens image side surface is R4, and the radius of curvature on the 5th lens image side surface is R10, the first lens object side table
Face is TL in the distance on optical axis to an imaging surface, and the abbe number of first lens is V1, the abbe number of second lens
For V2, the abbe number of the third lens is V3, and the abbe number of the 4th lens is V4, and the abbe number of the 5th lens is
V5 meets following condition:
(R3+R4)/(R3-R4)<0.50；
f/|R10|<1.20；
0.75<TL/f<1.10；And
0.45<(V2+V3+V5)/(V1+V4)<0.75。
2. imagery optical lens group according to claim 1, which is characterized in that first lens and second lens in
It in the spacing distance on optical axis is T23 that spacing distance on optical axis, which is T12, second lens and the third lens, and the third is saturating
Mirror and the 4th lens are T34 in the spacing distance on optical axis, and the 4th lens and the 5th lens are in the interval distance on optical axis
From for T45, meet following condition:
1.0<T34/(T12+T23+T45)<4.0。
3. imagery optical lens group according to claim 1, which is characterized in that the focal length of second lens is f2, should
The focal length of 4th lens is f4, meets following condition:
f4/f2<1.0。
4. imagery optical lens group according to claim 1, which is characterized in that the focal length of the imagery optical lens group
Radius of curvature for f, the 5th lens image side surface is R10, meets following condition:
f/|R10|<0.75。
5. imagery optical lens group according to claim 1, which is characterized in that the curvature of the second lens object side surface
Radius is R3, and the radius of curvature on the second lens image side surface is R4, meets following condition:
-2.5<(R3+R4)/(R3-R4)<0。
6. imagery optical lens group according to claim 1, which is characterized in that the maximum of the imagery optical lens group
Image height is ImgH, and the focal length of the imagery optical lens group is f, meets following condition:
0.25<ImgH/f<0.55。
7. imagery optical lens group according to claim 1, which is characterized in that the third lens and the 4th lens in
Spacing distance on optical axis is T34, and the 5th lens image side surface to the imaging surface is BL in the distance on optical axis, under meeting
Column condition:
1.20<T34/BL<2.5。
8. imagery optical lens group according to claim 1, which is characterized in that the 5th lens object side surface is in dipped beam
It is convex surface at axis.
9. imagery optical lens group according to claim 8, which is characterized in that the 5th lens image side surface is in dipped beam
It is convex surface at axis.
10. imagery optical lens group according to claim 8, which is characterized in that the song of the 4th lens object side surface
Rate radius is R7, and the radius of curvature on the 4th lens image side surface is R8, meets following condition:
-1.0<R7/R8<0。
11. imagery optical lens group according to claim 1, which is characterized in that the coke of the imagery optical lens group
It is f2 away from the focal length for f, second lens, the focal length of the third lens is f3, and the focal length of the 4th lens is f4, under meeting
Column condition:
-4.0<(f/f2)+(f/f3)+(f/f4)<-2.0。
12. imagery optical lens group according to claim 1, which is characterized in that first lens and second lens
Be T12, second lens and the third lens in the spacing distance on optical axis in the spacing distance on optical axis it is T23, meets
Following condition:
0<T23/T12<1.75。
13. imagery optical lens group according to claim 1, which is characterized in that the third lens object side surface in from
There is an at least concave surface, and the third lens image side surface has an at least concave surface in off-axis place at axis.
14. imagery optical lens group according to claim 1, which is characterized in that the abbe number of the 4th lens is
The abbe number of V4, the 5th lens are V5, meet following condition:
1.8<V4/V5<3.5。
15. imagery optical lens group according to claim 1, which is characterized in that the coke of the imagery optical lens group
Away from for f, the focal length of the third lens is f3, meets following condition:
-1.2<f/f3≦0。
16. a kind of image-taking device, characterized by comprising:
Imagery optical 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 imagery optical lens group.
17. a kind of electronic device, characterized by comprising:
Image-taking device as claimed in claim 16.
18. a kind of imagery optical lens group, which is characterized in that sequentially include by object side to image side:
One first lens, have positive refracting power, and object side surface is convex surface at dipped beam axis；
One second lens, have negative refracting power, and object side surface is concave surface at dipped beam axis；
One the third lens, object side surface are all aspherical with image side surface；
One the 4th lens have negative refracting power, and object side surface is concave surface at dipped beam axis, and image side surface is at dipped beam axis
Concave surface, image side surface have an at least convex surface in off-axis place, and object side surface is all aspherical with image side surface；And
One the 5th lens have positive refracting power, and object side surface is all aspherical with image side surface；
Wherein, the lens sum of the imagery optical lens group be five, first lens, second lens, the third lens,
In all having an airspace on optical axis between each two adjacent lens in 4th lens and the 5th lens；
Wherein, the focal length of the imagery optical lens group is f, and the radius of curvature of the second lens object side surface is R3, this second
The radius of curvature on lens image side surface is R4, and the first lens object side surface a to imaging surface is TL in the distance on optical axis, should
The maximum image height of imagery optical lens group is ImgH, meets following condition:
(R3+R4)/(R3-R4)<0；
0.75<TL/f<1.10；And
0.25<ImgH/f<0.55。
19. imagery optical lens group according to claim 18, which is characterized in that the abbe number of first lens is
V1, the abbe number of second lens are V2, and the abbe number of the third lens is V3, and the abbe number of the 4th lens is
The abbe number of V4, the 5th lens are V5, meet following condition:
0.45<(V2+V3+V5)/(V1+V4)<0.75。
20. imagery optical lens group according to claim 18, which is characterized in that first lens and second lens
In the spacing distance on optical axis be T12, second lens and the third lens in the spacing distance on optical axis be T23, the third
Lens and the 4th lens are T34 in the spacing distance on optical axis, and the 4th lens and the 5th lens are in the interval on optical axis
Distance is T45, meets following condition:
1.0<T34/(T12+T23+T45)<4.0。
21. imagery optical lens group according to claim 18, which is characterized in that first lens and second lens
Be T12, second lens and the third lens in the spacing distance on optical axis in the spacing distance on optical axis it is T23, meets
Following condition:
0<T23/T12<1.75。
22. a kind of image-taking device, characterized by comprising:
Imagery optical lens group as claimed in claim 18；And
One electronics photosensitive element, wherein the electronics photosensitive element is set on the imaging surface of the imagery optical lens group.
23. a kind of electronic device, characterized by comprising:
Image-taking device as claimed in claim 22.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020537.3A CN106970452B (en) | 2016-01-13 | 2016-01-13 | Imagery optical lens group, image-taking device and electronic device |
| CN201910266129.XA CN109856781B (en) | 2016-01-13 | 2016-01-13 | Optical lens group for imaging |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610020537.3A CN106970452B (en) | 2016-01-13 | 2016-01-13 | Imagery optical lens group, image-taking device and electronic device |
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| CN201910266129.XA Active CN109856781B (en) | 2016-01-13 | 2016-01-13 | Optical lens group for imaging |
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| CN108152922B (en) * | 2017-12-25 | 2020-06-09 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
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| CN106970452A (en) | 2017-07-21 |
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