CN106814436B - Optical lens for photographing group, image-taking device and electronic device - Google Patents

Optical lens for photographing group, image-taking device and electronic device Download PDF

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Publication number
CN106814436B
CN106814436B CN201510849326.6A CN201510849326A CN106814436B CN 106814436 B CN106814436 B CN 106814436B CN 201510849326 A CN201510849326 A CN 201510849326A CN 106814436 B CN106814436 B CN 106814436B
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China
Prior art keywords
lens
optical
focal length
photographing group
refracting power
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CN106814436A (en
Inventor
谢东益
黄歆璇
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Largan Precision Co Ltd
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Largan Precision Co Ltd
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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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • 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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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

A kind of exposure optical lens for photographing group of the present invention, image-taking device and electronic device, optical lens for photographing group sequentially include the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens by object side to image side.First lens have negative refracting power.Second lens have negative refracting power.4th lens have positive refracting power.5th lens have positive refracting power.6th lens have negative refracting power.The lens of optical lens for photographing group are six, and optical lens for photographing group further includes an aperture, when a specific condition is satisfied, helps meet the needs of wide-angle characteristic and high image quality simultaneously.Invention additionally discloses the image-taking device with above-mentioned optical lens for photographing group and with the electronic device of image-taking device.

Description

Optical lens for photographing group, image-taking device and electronic device
Technical field
The present invention relates to a kind of optical lens for photographing group, image-taking device and electronic devices, especially a kind of to be suitable for electricity The optical lens for photographing group and image-taking device of sub-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.
As camera module is using more and more extensive, camera module is equipped on various intelligent electronic products, automobile-used Device and home intelligent auxiliary system, such as driving camera lens, security monitoring, mobile camera or empty bat machine, entertainment device etc., have become For the trend of development in science and technology of future.In order to have wider use experience, application product is no longer limited to matching for single camera lens It sets, the intelligent apparatus for carrying one or more camera lens will become the mainstream of future development, and the camera lens arranged in pairs or groups is also in response to various feelings Condition application and develop different configuration needs.However, the miniaturization phtographic lens that tradition is equipped on electronic device is difficult to Meet the needs of wide-angle characteristic and high image quality simultaneously, and the high-order intelligent electronic for not being suitable for future development produces Product.
Summary of the invention
The purpose of the present invention is to provide a kind of optical lens for photographing group, image-taking device and electronic devices, wherein taking the photograph First lens of shadow optics lens group have negative refracting power and contribute to form reverse-focal type (Retro-Focus) structure, make to take the photograph Shadow optics lens group has wide imaging region.Second lens have negative refracting power and can balance the negative of the first lens and bend Power is rolled over, it is excessive to avoid the first lens refracting power and generate excessive aberration.4th lens have positive refracting power and can balance photography It is configured with the refracting power of optics lens group, to provide optical lens for photographing group enough convergence light abilities.5th lens tool There is positive refracting power and the positive refracting power of the 4th lens can be balanced, it is excessive to avoid the 4th lens refracting power and generate excessive aberration. 6th lens have negative refracting power and can balance total system color difference, and the incident optical energy of different-waveband is made to converge at same picture point, To promote image quality.When a specific condition is satisfied, facilitate with gradual configuration mode reconciliation optical lens for photographing group Refracting power distribution, to avoid excessive aberration is generated.In addition, can balance system space configuration, while meeting assembling demand, to mention For preferable image quality.In addition, light can be made, by aperture, aperture to be made to play optimum efficiency with angle more appropriate.Furthermore The lens for being set to optical lens for photographing group middle section can be made to have adequate thickness, squeezed to avoid lens in assembling and generate change Shape, and then promote assembling yield.
The present invention provides a kind of optical lens for photographing group, by object side to image side sequentially include the first lens, the second lens, The third lens, the 4th lens, the 5th lens and the 6th lens.First lens have negative refracting power.Second lens have negative bend Roll over power.4th lens have positive refracting power.5th lens have positive refracting power.6th lens have negative refracting power.Photography is used up The lens for learning lens group are six, and optical lens for photographing group further includes an aperture.The focal length of first lens be f1, second The focal length of lens is f2, and the focal length of the third lens is f3, and the third lens are in, with a thickness of CT3, the 6th lens are in optical axis on optical axis On with a thickness of CT6, be set in all lens between aperture and an object closest to the curvature of the lens surface of aperture Radius is Rsf, and the focal length of optical lens for photographing group is f, meets following condition:
|f1|<|f2|<|f3|；
0<CT6/CT3<0.80；And
-1.5<Rsf/f。
The present invention provides a kind of image-taking device, include optical lens for photographing group above-mentioned and an electronics photosensitive element, Wherein electronics photosensitive element is set on the imaging surface of optical lens for photographing group.
The present invention provides a kind of electronic device, includes image-taking device above-mentioned.
The present invention separately provides a kind of optical lens for photographing group, by object side to image side sequentially include the first lens, second thoroughly Mirror, the third lens, the 4th lens, the 5th lens and the 6th lens.First lens have negative refracting power.Second lens have negative Refracting power.4th lens have positive refracting power.5th lens have positive refracting power.6th lens have negative refracting power.Photography is used The lens of optical lens group are six, and optical lens for photographing group further includes an aperture.The focal length of first lens is f1, the The focal length of two lens is f2, and the focal lengths of the third lens is f3, the third lens on optical axis with a thickness of CT3, photographing optical mirror Head group in all lens in the thickness on optical axis minimum value be CTmin, all lens being set between aperture and an object Synthesis focal length be ff, be set to all lens between aperture and an imaging surface synthesis focal length be fr, meet following condition:
|f1|<|f2|<|f3|；
4.0<CT3/CTmin<12.0；And
ff/fr<0。
When satisfaction | f1 | < | f2 | < | f3 | when, facilitate with gradual configuration mode reconciliation optical lens for photographing group Refracting power distribution, to avoid excessive aberration is generated.
When CT6/CT3 meets above-mentioned condition, can balance system space configuration, while meeting assembling demand, with provide compared with Good image quality.
When Rsf/f meets above-mentioned condition, light can be made, by aperture, aperture to be made to play best effective with angle more appropriate Fruit.
When CT3/CTmin meets above-mentioned condition, the lens for being set to optical lens for photographing group middle section can be made to have foot Enough thickness is squeezed in assembling to avoid lens and is deformed, and then promotes assembling yield.
When ff/fr meets above-mentioned condition, reverse-focal type structure is contributed to form, to increase field angle, and then promotes photography With the application range of optics 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 image-taking device schematic diagram according to ninth embodiment of the invention；
Figure 18 is sequentially spherical aberration, astigmatism and the distortion curve of the 9th embodiment from left to right；
Figure 19 is painted the image-taking device schematic diagram according to tenth embodiment of the invention；
Figure 20 is sequentially spherical aberration, astigmatism and the distortion curve of the tenth embodiment from left to right；
Figure 21 is painted the schematic diagram according to a kind of electronic device of the invention；
Figure 22 is painted the schematic diagram according to another electronic device of the invention；
Figure 23 is painted the schematic diagram according to still another electronic device of the invention.
Wherein, appended drawing reference
Capture Zhuan Zhi ︰ 10
Guang Quan ︰ 100,200,300,400,500,600,700,800,900,1000
First Tou Jing ︰ 110,210,310,410,510,610,710,810,910,1010
Object Ce Biao Mian ︰ 111,211,311,411,511,611,711,811,911,1011
As side surface ︰ 112,212,312,412,512,612,712,812,912,1012
2nd saturating mirror ︰ 120,220,320,420,520,620,720,820,920,1020
Object Ce Biao Mian ︰ 121,221,321,421,521,621,721,821,921,1021
As side surface ︰ 122,222,322,422,522,622,722,822,922,1022
San Tou Jing ︰ 130,230,330,430,530,630,730,830,930,1030
Object Ce Biao Mian ︰ 131,231,331,431,531,631,731,831,931,1031
As side surface ︰ 132,232,332,432,532,632,732,832,932,1032
4th Tou Jing ︰ 140,240,340,440,540,640,740,840,940,1040
Object Ce Biao Mian ︰ 141,241,341,441,541,641,741,841,941,1041
As side surface ︰ 142,242,342,442,542,642,742,842,942,1042
5th Tou Jing ︰ 150,250,350,450,550,650,750,850,950,1050
Object Ce Biao Mian ︰ 151,251,351,451,551,651,751,851,951,1051
As side surface ︰ 152,252,352,452,552,652,752,852,952,1052
6th Tou Jing ︰ 160,260,360,460,560,660,760,860,960,1060
Object Ce Biao Mian ︰ 161,261,361,461,561,661,761,861,961,1061
As side surface ︰ 162,262,362,462,562,662,762,862,962,1062
Infrared ray filters out optical element ︰ 170,270,370,470,570,670,770,870,970,1070
Protection glass: 1075
Cheng Xiang Mian ︰ 180,280,380,480,580,680,780,880,980,1080
Electronics photosensitive element ︰ 190,290,390,490,590,690,790,890,990,1090
CT3: the third lens are in the thickness on optical axis
CT6: the six lens are in the thickness on optical axis
CTmax: in the maximum value of the thickness on optical axis in all lens of optical lens for photographing group
CTmin: in the minimum value of the thickness on optical axis in all lens of optical lens for photographing group
CTPmax: the strongest lens of refracting power are in the thickness on optical axis in optical lens for photographing group
CTPmin: the most weak lens of refracting power are in the thickness on optical axis in optical lens for photographing group
The f-number of Fno ︰ optical lens for photographing group
The focal length of f ︰ optical lens for photographing group
The focal length of the first lens of f1 ︰
The focal length of f2: the second lens
F3: the focal length of the third lens
The focal length of the 4th lens of f4 ︰
The focal length of f5: the five lens
The focal length of the 6th lens of f6 ︰
The synthesis focal length of f12: the first lens and the second lens
Ff ︰ is set to the synthesis focal length of all lens between aperture and object
Fr ︰ is set to the synthesis focal length of all lens between aperture and imaging surface
The half at maximum visual angle in HFOV ︰ optical lens for photographing group
R5: the radius of curvature of the third lens object side surface
R6: the radius of curvature on the third lens image side surface
The radius of curvature of R9: the five lens object side surface
The radius of curvature of R10: the five lens image side surface
Rsf: it is set between aperture and object in all lens closest to the radius of curvature of the lens surface of aperture
TL: the first lens object side surface is to imaging surface in the distance on optical axis
V3: the abbe number of the third lens
The abbe number of V5: the five lens
The abbe number of V6: the six lens
Specific embodiment
Structural principle and working principle of the invention are described in detail with reference to the accompanying drawing:
Optical lens for photographing group by object side to image side sequentially include the first lens, the second lens, the third lens, the 4th thoroughly Mirror, the 5th lens and the 6th lens.Wherein, the lens in optical lens for photographing group are six.
First lens have negative refracting power.Whereby, reverse-focal type structure is contributed to form, has optical lens for photographing group Wide imaging region.
Second lens have negative refracting power.Whereby, the negative refracting power of the first lens can be balanced, to avoid the first lens flexion Power is excessive and generates excessive aberration.
The third lens can have negative refracting power, and image side surface can be concave surface.Whereby, bending for single lens is helped avoid It is too strong to roll over power, and the susceptibility of optical lens for photographing group can be reduced.
4th lens have positive refracting power, and object side surface can be convex surface.Whereby, optical lens for photographing group can be balanced Refracting power configuration, to provide optical lens for photographing group enough convergence light abilities.
5th lens have positive refracting power.Whereby, the positive refracting power of the 4th lens can be balanced, to avoid the 4th lens flexion Power is excessive and generates excessive aberration.
6th lens have negative refracting power.Whereby, total system color difference can be balanced, the incident optical energy of different-waveband is converged In same picture point, to promote image quality.
The focal length of first lens is f1, and the focal length of the second lens is f2, and the focal length of the third lens is f3, meets following item Part: | f1 | < | f2 | < | f3 |.Whereby, facilitate with the refracting power point of gradual configuration mode reconciliation optical lens for photographing group Cloth, to avoid excessive aberration is generated.
The third lens are in a thickness of CT3, the 6th lens are on optical axis, with a thickness of CT6, meeting following item on optical axis Part: 0 < CT6/CT3 < 0.80.Whereby, can balance system space configuration, while meeting assembling demand, to provide preferably imaging product Matter.Preferably, it can the following condition of further satisfaction: 0 < CT6/CT3 < 0.35.
Disclosed herein optical lens for photographing group further include an aperture.The focal length of optical lens for photographing group is f, Being set in all lens between aperture and an object closest to the radius of curvature of the lens surface of aperture is Rsf, is expired Foot column condition: -1.5 < Rsf/f.Whereby, light can be made, by aperture, aperture to be made to play optimum efficiency with angle more appropriate. Preferably, it can the following condition of further satisfaction: 0 < Rsf/f.
The third lens on optical axis with a thickness of CT3, in the thickness on optical axis in optical lens for photographing group all lens Minimum value be CTmin, meet following condition: 4.0 < CT3/CTmin < 12.0.Whereby, can make to be set to photographing optical mirror The lens in head group middle section have adequate thickness, squeeze and are deformed in assembling to avoid lens, and then promote assembling yield.
The synthesis focal length for being set to all lens between aperture and object is ff, is set between aperture and an imaging surface The synthesis focal length of all lens is fr, meets following condition: ff/fr < 0.Whereby, inverse close-burning structure is contributed to form, to increase Field angle promotes the application range of optical lens for photographing group.Preferably, it can the following condition of further satisfaction: -1.0 < ff/ fr<-0.20。
The radius of curvature of the third lens object side surface is R5, and the radius of curvature on the third lens image side surface is R6, can be expired Foot column condition: -0.20 < (R5-R6)/(R5+R6) < 0.35.Whereby, the face direction meridian (tangential) and the sagitta of arc can be balanced (sagittal) the optical path trend in face direction, in favor of correcting astigmatism.
In optical lens for photographing group the strongest lens of refracting power on optical axis with a thickness of CTPmax, photographing optical mirror The most weak lens of refracting power are in, with a thickness of CTPmin, can meeting following condition: 0.90 < CTPmin/ on optical axis in head group CTPmax<10.0.Whereby, lens thickness and refracting power configuration can be balanced to promote image quality.The refracting power of each lens is to take the photograph Divided by the numerical value of each focal length of lens, the refracting power most strong representation numerical value has maximum absolute the focal length of shadow optics lens group Value, the most weak expression numerical value of refracting power have the smallest absolute value.
The third lens on optical axis with a thickness of CT3, in the thickness on optical axis in optical lens for photographing group all lens Maximum value be CTmax, following condition: 0.85 < CT3/CTmax≤1.0 can be met.Whereby, facilitate lens project at Homogenieity when type, while the miniaturization of optical lens for photographing group can be maintained.
The focal length of first lens is f1, and the focal length of the second lens is f2, and the focal length of the third lens is f3, the coke of the 4th lens Away from for f4, following condition can be met: (| f1 |+| f2 |+| f4 |)/| f3 | < 1.0.Whereby, facilitate appropriately configured photography to use up The refracting power distribution of lens group is learned, to reduce the susceptibility of optical lens for photographing group.
The focal length of optical lens for photographing group is f, and the first lens object side surface to imaging surface is TL in the distance on optical axis, It can meet following condition: 0 < f/TL < 0.20.Whereby, facilitate the optics total length of shortening optical lens for photographing group to tie up Hold its miniaturization.
The focal length of optical lens for photographing group is f, can meet following condition: 2.0 [millimeter] < f < 6.0 [millimeter].It borrows This, the miniaturization for facilitating optical lens for photographing group is excessive to avoid volume, it is made to be more suitable for being equipped on frivolous electronics dress It sets.
The focal length of first lens is f1, and the focal length of the second lens is f2, and the focal length of the third lens is f3, the coke of the 4th lens It is f5 away from the focal length for f4, the 5th lens, the focal length of the 6th lens is f6, and the focal length for being also denoted as the i-th lens is fi, can Meet following condition: | f3 | > | fi |, wherein i=1,2,4,5,6.Whereby, facilitate the flexion of reconciliation optical lens for photographing group Power distribution can slow down the incident angle variation of big visual angle light effectively to reduce aberration generation.
The focal length of 4th lens is f4, and the focal length of the 5th lens is f5, can meet following condition: 0 < f4/f5 < 1.5.It borrows This, facilitates the refracting power intensity for balancing the 4th lens and the 5th lens, to provide optical lens for photographing group enough convergences Light ability.
The focal length of optical lens for photographing group is f, and the focal lengths of the third lens is f3, can meet following condition: -0.30 < f/f3<0.30.Preferably, it can the following condition of further satisfaction: -0.15 < f/f3 < 0.15.Whereby, the refracting power of the third lens It is more appropriate, help to correct aberration and maintains the miniaturization of optical lens for photographing group simultaneously.
The radius of curvature on the third lens image side surface be R6, the third lens on optical axis with a thickness of CT3, under can meeting Column condition: 0 < R6/CT3 < 2.5.Whereby, it can be ensured that it is strong that the third lens still have enough lens while correcting spherical aberration Degree facilitates the susceptibility for reducing optical lens for photographing group.Preferably, it can the following condition of further satisfaction: 0 < R6/CT3 < 1.8。
The synthesis focal length of first lens and the second lens is f12, and the focal length of optical lens for photographing group is f, can be met Following condition: -1.45 < f12/f < -0.70.Whereby, facilitate to obtain between expansion field angle and shortening back focal length good flat Weighing apparatus.
First lens and the second lens can be all two adjacent lens on optical axis in the spacing distance on optical axis Maximum value in spacing distance.Whereby, the incident angle variation of big visual angle light can be slowed down effectively to reduce aberration generation.
The abbe number of the third lens is V3, and the abbe number of the 5th lens is V5, and the abbe number of the 6th lens is V6, It can meet following condition: 0.30 < (V3+V6)/V5 < 1.0.Whereby, facilitate to correct color difference.
The radius of curvature of the third lens object side surface is R5, and the radius of curvature on the third lens image side surface is R6, can be expired Foot column condition: | R5 | > | R6 |.Whereby, the third lens principal point can be made mobile toward image side, in favor of making optical lens for photographing group The characteristic for having wide viewing angle.
The radius of curvature of 5th lens object side surface is R9, and the radius of curvature on the 5th lens image side surface is R10, can be expired Foot column condition: | R9 | > | R10 |.Whereby, the 5th lens pricipal point can be made mobile toward image side, in favor of making optical lens for photographing The characteristic for having wide viewing angle of group.
The invention discloses optical lens for photographing group in, the configuration of aperture can for preposition aperture or in set aperture.Wherein Preposition aperture implies that aperture is set between object and the first lens, in set aperture then and indicate aperture be set to the first lens at Between image planes.If aperture is preposition aperture, the outgoing pupil (Exit Pupil) of optical lens for photographing 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 the field angle for helping to expand optical lens for photographing group, is made optical lens for photographing Group has the advantage of wide-angle lens.
The invention discloses optical lens for photographing 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 optics overall length can be effectively reduced Degree.The glass lens more than a piece of be can allow in optical lens for photographing group to reduce environment for optical lens for photographing group Influence.Alternatively, can also arrange in pairs or groups in optical lens for photographing group it is a piece of more than plastic aspheric lenes do it is more good Optical aberration correcting.
The invention discloses optical lens for photographing group in, if lens surface is convex surface and when not defining the convex surface position, Then 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 The 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 this is thoroughly The refracting power or focal length of mirror are refracting power or focal length of the lens at dipped beam axis.
The invention discloses optical lens for photographing group in, the imaging surface (Image of optical lens for photographing group Surface) according to the difference of its corresponding electronics photosensitive element, it can be a flat surface or be had the curved surface of any curvature, particularly related to recessed Face the curved surface toward object side direction.
The invention discloses optical lens for photographing 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 optical lens for photographing group and electronics photosensitive element, Wherein electronics photosensitive element is set on the imaging surface of optical lens for photographing group.Preferably, the image-taking device can be further Include lens barrel (Barrel Member), support device (Holding Member) or combinations thereof.
Referring to figure 2. 1,22 and 23, image-taking device 10 many-sided can be applied to reversing developing apparatus (as shown in figure 21), capable Vehicle logger (as shown in figure 22) and safety monitoring equipment (as shown in figure 23) etc..Preferably, electronic device can further include It is control unit (Control Units), display unit (Display Units), storage element (Storage Units), random Access memory (RAM) or combinations thereof.
The more visual demand of optical lens for photographing 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 photography is used Optical lens group (not another label) and electronics photosensitive element 190.Optical lens for photographing group sequentially includes by object side to image side One lens 110, the second lens 120, the third lens 130, aperture 100, the 4th lens 140, the 5th lens 150, the 6th lens 160, infrared ray filters out filter element (IR-cut Filter) 170 and imaging surface 180.Wherein, electronics photosensitive element 190 is arranged In on imaging surface 180.The lens (110-160) of optical lens for photographing group are six.
First lens 110 have negative refracting power, and are glass material, and object side surface 111 is convex surface, image side surface 112 be concave surface, and two surfaces are all spherical surface.
Second lens 120 have negative refracting power, and are plastic cement material, and object side surface 121 is concave surface, image side surface 122 be concave surface, and two surfaces are all aspherical.
The third lens 130 have positive refracting power, and are glass material, and object side surface 131 is convex surface, image side surface 132 be concave surface, and two surfaces are all spherical surface.
4th lens 140 have positive refracting power, and are glass material, and object side surface 141 is convex surface, image side surface 142 be convex surface, and two surfaces are all spherical surface.
5th lens 150 have positive refracting power, and are glass material, and object side surface 151 is convex surface, image side surface 152 be convex surface, and two surfaces are all spherical surface.
6th lens 160 have negative refracting power, and are glass material, and object side surface 161 is concave surface, image side surface 162 be convex surface, and two surfaces are all spherical surface.5th lens image side surface 152 is engaged with the 6th lens object side surface 161.
The material that infrared ray filters out filter element 170 is glass, is set between the 6th lens 160 and imaging surface 180, Have no effect on the focal length of optical lens for photographing group.
First lens 110 and the second lens 120 are greater than the second lens 120 and the third lens in the spacing distance on optical axis 130 in spacing distance, the third lens 130 and the 4th lens 140 on optical axis in spacing distance, the 4th lens 140 on optical axis With the 5th lens 150 on optical axis spacing distance and the 5th lens 150 and the 6th lens 160 in the interval distance on optical axis From.That is, the first lens 110 and the second lens 120 are all two adjacent lens in light in the spacing distance on optical axis The maximum value in spacing distance on axis.
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 lens for photographing group of first embodiment, the focal length of optical lens for photographing group is f, photographing optical mirror The f-number (F-number) of head group is Fno, and the half at maximum visual angle is HFOV in optical lens for photographing group, and numerical value is such as Under: f=2.79 millimeters (mm), Fno=2.85, HFOV=70.0 degree (deg.).
The abbe number of the third lens 130 is V3, and the abbe number of the 5th lens 150 is V5, the dispersion of the 6th lens 160 Coefficient is V6, meets following condition: (V3+V6)/V5=0.79.
The third lens 130 are in a thickness of CT3, the 6th lens 160 on optical axis in, with a thickness of CT6, meeting on optical axis Following condition: CT6/CT3=0.16.
The third lens 130 on optical axis with a thickness of CT3, in the thickness on optical axis in optical lens for photographing group all lens The minimum value of degree is CTmin, meets following condition: CT3/CTmin=6.34.In the present embodiment, the 6th lens 160 are in light Thickness on axis less than the first lens 110 on optical axis thickness, the second lens 120 are in the thickness on optical axis, the third lens 130 In on optical axis thickness, the 4th lens 140 on optical axis thickness and the 5th lens 150 in the thickness on optical axis.Therefore, CTmin is the 6th lens 160 in the thickness on optical axis.
The third lens 130 on optical axis with a thickness of CT3, in the thickness on optical axis in optical lens for photographing group all lens The maximum value of degree is CTmax, meets following condition: CT3/CTmax=0.95.In the present embodiment, the second lens 120 are in light Thickness and the 5th lens 150 on axis is equal in the thickness on optical axis, and is all greater than the first lens 110 in the thickness on optical axis Degree, the third lens 130 on optical axis thickness, the 4th lens 140 on optical axis thickness and the 6th lens 160 on optical axis Thickness.Therefore, CTmax be the second lens 120 on optical axis thickness or the 5th lens 150 in the thickness on optical axis.
In optical lens for photographing group the strongest lens of refracting power on optical axis with a thickness of CTPmax, photographing optical mirror The most weak lens of refracting power are in, with a thickness of CTPmin, meeting following condition: CTPmin/CTPmax=on optical axis in head group 6.34.In the present embodiment, the refracting power of the 6th lens 160 is most strong, and the refracting power of the third lens 130 is most weak.Cause This, CTPmin is the third lens 130 in the thickness on optical axis, and CTPmax is the 6th lens 160 in the thickness on optical axis.
The radius of curvature on the third lens image side surface 132 is R6, and the third lens on optical axis in, with a thickness of CT3, meeting Following condition: R6/CT3=1.36.
The radius of curvature of the third lens object side surface 131 is R5, and the radius of curvature on the third lens image side surface 132 is R6, It meets following condition: (R5-R6)/(R5+R6)=0.07.
It is set in all lens between aperture 100 and an object (not being painted) closest to the lens surface of aperture 100 Radius of curvature be Rsf, the focal length of optical lens for photographing group is f, meets following condition: Rsf/f=1.86.In this implementation In example, the lens between aperture 100 and object are set to as the first lens 110, the second lens 120 and the third lens 130, and The third lens image side surface 132 is for the first lens 110 into all lens surfaces of the third lens 130 closest to aperture 100 Lens surface.Therefore, Rsf is the radius of curvature on the third lens image side surface 132.
The focal length of optical lens for photographing group is f, and the focal length of the third lens 130 is f3, meets following condition: f/f3= 0.07。
The focal length of 4th lens 140 is f4, and the focal length of the 5th lens 150 is f5, meets following condition: f4/f5= 1.07。
The focal length of optical lens for photographing group is f, and the synthesis focal length of the first lens 110 and the second lens 120 is f12, Meet following condition: f12/f=-1.12.
The focal length of first lens 110 is f1, and the focal length of the second lens 120 is f2, and the focal length of the third lens 130 is f3, the The focal length of four lens 140 is f4, meets following condition: (| f1 |+| f2 |+| f4 |)/| f3 |=0.56.
The synthesis focal length for being set to all lens between aperture 100 and object is ff, is set to aperture 100 and imaging surface The synthesis focal length of all lens between 180 is fr, meets following condition: ff/fr=-0.73.In the present embodiment, it is set to Lens between aperture 100 and object are the first lens 110, the second lens 120 and the third lens 130, also, are set to aperture Lens between 100 and imaging surface 180 are the 4th lens 140, the 5th lens 150 and the 6th lens 160.Therefore, ff is first The synthesis focal length of lens 110, the second lens 120 and the third lens 130, fr are the 4th lens 140, the 5th lens 150 and The synthesis focal length of six lens 160.
The focal length of optical lens for photographing group is f, the first lens object side surface 111 to imaging surface 180 on optical axis away from From for TL, meet following condition: f/TL=0.12.
Cooperation is referring to following table one and table two.
Table one is the detailed structured data of Fig. 1 first embodiment, and wherein the unit of radius of curvature, thickness and focal length is millimeter (mm), and surface 0 to 16 is sequentially indicated by the surface of object side to image side.Table two is the aspherical surface data in first embodiment, In, k is the conical surface coefficient in aspheric curve equation, and A4 to A8 then indicates each the 4 to 8th 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 includes that photography is used Optical lens group (not another label) and electronics photosensitive element 290.Optical lens for photographing group sequentially includes by object side to image side One lens 210, the second lens 220, the third lens 230, aperture 200, the 4th lens 240, the 5th lens 250, the 6th lens 260, infrared ray filters out filter element 270 and imaging surface 280.Wherein, electronics photosensitive element 290 is set on imaging surface 280.It takes the photograph The lens (210-260) of shadow optics lens group are six.
First lens 210 have negative refracting power, and are glass material, and object side surface 211 is concave surface, image side surface 212 be concave surface, 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, image side surface 222 be concave surface, and two surfaces are all aspherical.
The third lens 230 have positive refracting power, and are glass material, and object side surface 231 is convex surface, image side surface 232 be concave surface, and two surfaces are all spherical surface.
4th lens 240 have positive refracting power, and are glass material, and object side surface 241 is convex surface, image side surface 242 be convex surface, and two surfaces are all spherical surface.
5th lens 250 have positive refracting power, and are glass material, and object side surface 251 is convex surface, image side surface 252 be convex surface, and two surfaces are all spherical surface.
6th lens 260 have negative refracting power, and are plastic cement material, and object side surface 261 is concave surface, image side surface 262 be concave surface, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 270 is glass, is set between the 6th lens 260 and imaging surface 280, Have no effect on the focal length of optical lens for photographing group.
First lens 210 and the second lens 220 are greater than the second lens 220 and the third lens in the spacing distance on optical axis 230 in spacing distance, the third lens 230 and the 4th lens 240 on optical axis in spacing distance, the 4th lens 240 on optical axis With the 5th lens 250 on optical axis spacing distance and the 5th lens 250 and the 6th lens 260 in the interval distance on optical axis From.That is, the first lens 210 and the second lens 220 are all two adjacent lens in light in the spacing distance on optical axis The maximum value in spacing distance on axis.
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 photography is used Optical lens group (not another label) and electronics photosensitive element 390.Optical lens for photographing group sequentially includes by object side to image side One lens 310, the second lens 320, the third lens 330, aperture 300, the 4th lens 340, the 5th lens 350, the 6th lens 360, infrared ray filters out filter element 370 and imaging surface 380.Wherein, electronics photosensitive element 390 is set on imaging surface 380.It takes the photograph The lens (310-360) of shadow optics lens group are six.
First lens 310 have negative refracting power, and are glass material, and object side surface 311 is convex surface, image side surface 312 be concave surface, 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, image side surface 322 be concave surface, and two surfaces are all aspherical.
The third lens 330 have positive refracting power, and are glass material, and object side surface 331 is convex surface, image side surface 332 be concave surface, and two surfaces are all spherical surface.
4th lens 340 have positive refracting power, and are glass material, and object side surface 341 is convex surface, image side surface 342 be concave surface, and two surfaces are all spherical surface.
5th lens 350 have positive refracting power, and are glass material, and object side surface 351 is convex surface, image side surface 352 be convex surface, and two surfaces are all spherical surface.
6th lens 360 have negative refracting power, and are plastic cement material, and object side surface 361 is concave surface, image side surface 362 be concave surface, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 370 is glass, is set between the 6th lens 360 and imaging surface 380, Have no effect on the focal length of optical lens for photographing group.
First lens 310 and the second lens 320 are greater than the second lens 320 and the third lens in the spacing distance on optical axis 330 in spacing distance, the third lens 330 and the 4th lens 340 on optical axis in spacing distance, the 4th lens 340 on optical axis With the 5th lens 350 on optical axis spacing distance and the 5th lens 350 and the 6th lens 360 in the interval distance on optical axis From.That is, the first lens 310 and the second lens 320 are all two adjacent lens in light in the spacing distance on optical axis The maximum value in spacing distance on axis.
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 photography is used Optical lens group (not another label) and electronics photosensitive element 490.Optical lens for photographing group sequentially includes by object side to image side One lens 410, the second lens 420, the third lens 430, aperture 400, the 4th lens 440, the 5th lens 450, the 6th lens 460, infrared ray filters out filter element 470 and imaging surface 480.Wherein, electronics photosensitive element 490 is set on imaging surface 480.It takes the photograph The lens (410-460) of shadow optics lens group are six.
First lens 410 have negative refracting power, and are glass material, and object side surface 411 is convex surface, image side surface 412 be concave surface, and two surfaces are all aspherical.
Second lens 420 have negative refracting power, and are plastic cement material, and object side surface 421 is convex surface, image side surface 422 be concave surface, and two surfaces are all aspherical.
The third lens 430 have positive refracting power, and are glass material, and object side surface 431 is convex surface, image side surface 432 be concave surface, and two surfaces are all spherical surface.
4th lens 440 have positive refracting power, and are glass material, and object side surface 441 is convex surface, image side surface 442 be convex surface, and two surfaces are all spherical surface.
5th lens 450 have positive refracting power, and are glass material, and object side surface 451 is convex surface, image side surface 452 be convex surface, and two surfaces are all aspherical.
6th lens 460 have negative refracting power, and are plastic cement material, and object side surface 461 is convex surface, image side surface 462 be concave surface, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 470 is glass, is set between the 6th lens 460 and imaging surface 480, Have no effect on the focal length of optical lens for photographing group.
First lens 410 and the second lens 420 are greater than the second lens 420 and the third lens in the spacing distance on optical axis 430 in spacing distance, the third lens 430 and the 4th lens 440 on optical axis in spacing distance, the 4th lens 440 on optical axis With the 5th lens 450 on optical axis spacing distance and the 5th lens 450 and the 6th lens 460 in the interval distance on optical axis From.That is, the first lens 410 and the second lens 420 are all two adjacent lens in light in the spacing distance on optical axis The maximum value in spacing distance on axis.
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 photography With optics lens group (not another label) and electronics photosensitive element 590.Optical lens for photographing group sequentially includes by object side to image side First lens 510, the second lens 520, the third lens 530, aperture 500, the 4th lens 540, the 5th lens 550, the 6th lens 560, infrared ray filters out filter element 570 and imaging surface 580.Wherein, electronics photosensitive element 590 is set on imaging surface 580.It takes the photograph The lens (510-560) of shadow optics lens group are six.
First lens 510 have negative refracting power, and are glass material, and object side surface 511 is convex surface, image side surface 512 be concave surface, 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, image side surface 522 be convex surface, and two surfaces are all aspherical.
The third lens 530 have negative refracting power, and are glass material, and object side surface 531 is convex surface, image side surface 532 be concave surface, and two surfaces are all spherical surface.
4th lens 540 have positive refracting power, and are glass material, and object side surface 541 is convex surface, image side surface 542 be concave surface, and two surfaces are all spherical surface.
5th lens 550 have positive refracting power, and are glass material, and object side surface 551 is convex surface, image side surface 552 be convex surface, and two surfaces are all spherical surface.
6th lens 560 have negative refracting power, and are plastic cement material, and object side surface 561 is concave surface, image side surface 562 be concave surface, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 570 is glass, is set between the 6th lens 560 and imaging surface 580, Have no effect on the focal length of optical lens for photographing group.
First lens 510 and the second lens 520 are greater than the second lens 520 and the third lens in the spacing distance on optical axis 530 in spacing distance, the third lens 530 and the 4th lens 540 on optical axis in spacing distance, the 4th lens 540 on optical axis With the 5th lens 550 on optical axis spacing distance and the 5th lens 550 and the 6th lens 560 in the interval distance on optical axis From.That is, the first lens 510 and the second lens 520 are all two adjacent lens in light in the spacing distance on optical axis The maximum value in spacing distance on axis.
It please cooperate referring to following table nine and table ten.
In 5th embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following table Definition is all identical with the first embodiment, and not in this to go forth.
<sixth embodiment>
Figure 11 and Figure 12 is please referred to, wherein Figure 11 is painted the image-taking device schematic diagram according to sixth embodiment of the invention, figure 12 be sequentially spherical aberration, astigmatism and the distortion curve of sixth embodiment from left to right.As shown in Figure 11, image-taking device includes and takes the photograph Shadow optics lens group (not another label) and electronics photosensitive element 690.Optical lens for photographing group is sequentially wrapped by object side to image side Thoroughly containing the first lens 610, the second lens 620, the third lens 630, aperture 600, the 4th lens 640, the 5th lens the 650, the 6th Mirror 660, infrared ray filter out filter element 670 and imaging surface 680.Wherein, electronics photosensitive element 690 is set on imaging surface 680. The lens (610-660) of optical lens for photographing group are six.
First lens 610 have negative refracting power, and are glass material, and object side surface 611 is convex surface, image side surface 612 be concave surface, and two surfaces are all spherical surface.
Second lens 620 have negative refracting power, and are plastic cement material, and object side surface 621 is concave surface, image side surface 622 be convex surface, and two surfaces are all aspherical.
The third lens 630 have negative refracting power, and are glass material, and object side surface 631 is convex surface, image side surface 632 be concave surface, and two surfaces are all spherical surface.
4th lens 640 have positive refracting power, and are glass material, and object side surface 641 is convex surface, image side surface 642 be convex surface, and two surfaces are all spherical surface.
5th lens 650 have positive refracting power, and are glass material, and object side surface 651 is convex surface, image side surface 652 be convex surface, and two surfaces are all spherical surface.
6th lens 660 have negative refracting power, and are plastic cement material, and object side surface 661 is concave surface, image side surface 662 be concave surface, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 670 is glass, is set between the 6th lens 660 and imaging surface 680, Have no effect on the focal length of optical lens for photographing group.
First lens 610 and the second lens 620 are greater than the second lens 620 and the third lens in the spacing distance on optical axis 630 in spacing distance, the third lens 630 and the 4th lens 640 on optical axis in spacing distance, the 4th lens 640 on optical axis With the 5th lens 650 on optical axis spacing distance and the 5th lens 650 and the 6th lens 660 in the interval distance on optical axis From.That is, the first lens 610 and the second lens 620 are all two adjacent lens in light in the spacing distance on optical axis The maximum value in spacing distance on axis.
It please cooperate referring to following table 11 and table 12.
In sixth embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following table Definition is all identical with the first embodiment, and not in this to go forth.
<the 7th embodiment>
Figure 13 and Figure 14 is please referred to, wherein Figure 13 is painted the image-taking device schematic diagram according to seventh embodiment of the invention, figure 14 be sequentially spherical aberration, astigmatism and the distortion curve of the 7th embodiment from left to right.As shown in Figure 13, image-taking device includes and takes the photograph Shadow optics lens group (not another label) and electronics photosensitive element 790.Optical lens for photographing group is sequentially wrapped by object side to image side Thoroughly containing the first lens 710, the second lens 720, the third lens 730, aperture 700, the 4th lens 740, the 5th lens the 750, the 6th Mirror 760, infrared ray filter out filter element 770 and imaging surface 780.Wherein, electronics photosensitive element 790 is set on imaging surface 780. The lens (710-760) of optical lens for photographing group are six.
First lens 710 have negative refracting power, and are glass material, and object side surface 711 is convex surface, image side surface 712 be concave surface, and two surfaces are all spherical surface.
Second lens 720 have negative refracting power, and are plastic cement material, and object side surface 721 is concave surface, image side surface 722 be concave surface, and two surfaces are all aspherical.
The third lens 730 have positive refracting power, and are glass material, and object side surface 731 is convex surface, image side surface 732 be concave surface, and two surfaces are all spherical surface.
4th lens 740 have positive refracting power, and are glass material, and object side surface 741 is convex surface, image side surface 742 be convex surface, and two surfaces are all spherical surface.
5th lens 750 have positive refracting power, and are glass material, and object side surface 751 is convex surface, image side surface 752 be convex surface, and two surfaces are all spherical surface.
6th lens 760 have negative refracting power, and are plastic cement material, and object side surface 761 is concave surface, image side surface 762 be convex surface, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 770 is glass, is set between the 6th lens 760 and imaging surface 780, Have no effect on the focal length of optical lens for photographing group.
First lens 710 and the second lens 720 are greater than the second lens 720 and the third lens in the spacing distance on optical axis 730 in spacing distance, the third lens 730 and the 4th lens 740 on optical axis in spacing distance, the 4th lens 740 on optical axis With the 5th lens 750 on optical axis spacing distance and the 5th lens 750 and the 6th lens 760 in the interval distance on optical axis From.That is, the first lens 710 and the second lens 720 are all two adjacent lens in light in the spacing distance on optical axis The maximum value in spacing distance on axis.
It please cooperate referring to following table 13 and table 14.
In 7th embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following table Definition is all identical with the first embodiment, and not in this to go forth.
<the 8th embodiment>
Figure 15 and Figure 16 is please referred to, wherein Figure 15 is painted the image-taking device schematic diagram according to eighth embodiment of the invention, figure 16 be sequentially spherical aberration, astigmatism and the distortion curve of the 8th embodiment from left to right.As shown in Figure 15, image-taking device includes and takes the photograph Shadow optics lens group (not another label) and electronics photosensitive element 890.Optical lens for photographing group is sequentially wrapped by object side to image side Thoroughly containing the first lens 810, the second lens 820, the third lens 830, the 4th lens 840, aperture 800, the 5th lens the 850, the 6th Mirror 860, infrared ray filter out filter element 870 and imaging surface 880.Wherein, electronics photosensitive element 890 is set on imaging surface 880. The lens (810-860) of optical lens for photographing group are six.
First lens 810 have negative refracting power, and are glass material, and object side surface 811 is convex surface, image side surface 812 be concave surface, 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, image side surface 822 be concave surface, and two surfaces are all aspherical.
The third lens 830 have positive refracting power, and are glass material, and object side surface 831 is convex surface, image side surface 832 be concave surface, and two surfaces are all spherical surface.
4th lens 840 have positive refracting power, and are glass material, and object side surface 841 is convex surface, image side surface 842 be concave surface, and two surfaces are all aspherical.
5th lens 850 have positive refracting power, and are glass material, and object side surface 851 is convex surface, image side surface 852 be convex surface, and two surfaces are all spherical surface.
6th lens 860 have negative refracting power, and are plastic cement material, and object side surface 861 is concave surface, image side surface 862 be concave surface, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 870 is glass, is set between the 6th lens 860 and imaging surface 880, Have no effect on the focal length of optical lens for photographing group.
First lens 810 and the second lens 820 are greater than the second lens 820 and the third lens in the spacing distance on optical axis 830 in spacing distance, the third lens 830 and the 4th lens 840 on optical axis in spacing distance, the 4th lens 840 on optical axis With the 5th lens 850 on optical axis spacing distance and the 5th lens 850 and the 6th lens 860 in the interval distance on optical axis From.That is, the first lens 810 and the second lens 820 are all two adjacent lens in light in the spacing distance on optical axis The maximum value in spacing distance on axis.
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.
<the 9th embodiment>
Figure 17 and Figure 18 is please referred to, wherein Figure 17 is painted the image-taking device schematic diagram according to ninth embodiment of the invention, figure 18 be sequentially spherical aberration, astigmatism and the distortion curve of the 9th embodiment from left to right.As shown in Figure 17, image-taking device includes and takes the photograph Shadow optics lens group (not another label) and electronics photosensitive element 990.Optical lens for photographing group is sequentially wrapped by object side to image side Thoroughly containing the first lens 910, the second lens 920, the third lens 930, aperture 900, the 4th lens 940, the 5th lens the 950, the 6th Mirror 960, infrared ray filter out filter element 970 and imaging surface 980.Wherein, electronics photosensitive element 990 is set on imaging surface 980. The lens (910-960) of optical lens for photographing group are six.
First lens 910 have negative refracting power, and are glass material, and object side surface 911 is convex surface, image side surface 912 be concave surface, and two surfaces are all spherical surface.
Second lens 920 have negative refracting power, and are glass material, and object side surface 921 is convex surface, image side surface 922 be concave surface, and two surfaces are all spherical surface.
The third lens 930 have negative refracting power, and are glass material, and object side surface 931 is convex surface, image side surface 932 be concave surface, and two surfaces are all spherical surface.
4th lens 940 have positive refracting power, and are glass material, and object side surface 941 is convex surface, image side surface 942 be convex surface, and two surfaces are all spherical surface.
5th lens 950 have positive refracting power, and are glass material, and object side surface 951 is convex surface, image side surface 952 be convex surface, and two surfaces are all spherical surface.
6th lens 960 have negative refracting power, and are glass material, and object side surface 961 is concave surface, image side surface 962 be convex surface, and two surfaces are all spherical surface.5th lens image side surface 952 is engaged with the 6th lens object side surface 961.
The material that infrared ray filters out filter element 970 is glass, is set between the 6th lens 960 and imaging surface 980, Have no effect on the focal length of optical lens for photographing group.
First lens 910 and the second lens 920 are greater than the second lens 920 and the third lens in the spacing distance on optical axis 930 in spacing distance, the third lens 930 and the 4th lens 940 on optical axis in spacing distance, the 4th lens 940 on optical axis With the 5th lens 950 on optical axis spacing distance and the 5th lens 950 and the 6th lens 960 in the interval distance on optical axis From.That is, the first lens 910 and the second lens 920 are all two adjacent lens in light in the spacing distance on optical axis The maximum value in spacing distance on axis.
It please cooperate referring to following table 17.
In 9th embodiment, definition described in following table is all identical with the first embodiment, and not in this to go forth.
<the tenth embodiment>
Figure 19 and Figure 20 is please referred to, wherein Figure 19 is painted the image-taking device schematic diagram according to tenth embodiment of the invention, figure 20 be sequentially spherical aberration, astigmatism and the distortion curve of the tenth embodiment from left to right.It appears from figure 19 that image-taking device includes to take the photograph Shadow optics lens group (not another label) and electronics photosensitive element 1090.Optical lens for photographing group is sequentially wrapped by object side to image side Containing the first lens 1010, the second lens 1020, the third lens 1030, aperture 1000, the 4th lens 1040, the 5th lens 1050, 6th lens 1060, infrared ray filter out filter element 1070, protection glass (Cover Glass) 1075 and imaging surface 1080. Wherein, electronics photosensitive element 1090 is set on imaging surface 1080.The lens (1010-1060) of optical lens for photographing group are six Piece.
First lens 1010 have negative refracting power, and are glass material, and object side surface 1011 is convex surface, image side surface 1012 be concave surface, and two surfaces are all spherical surface.
Second lens 1020 have negative refracting power, and are glass material, and object side surface 1021 is convex surface, image side surface 1022 be concave surface, and two surfaces are all spherical surface.
The third lens 1030 have positive refracting power, and are glass material, and object side surface 1031 is convex surface, image side surface 1032 be concave surface, and two surfaces are all spherical surface.
4th lens 1040 have positive refracting power, and are glass material, and object side surface 1041 is convex surface, image side surface 1042 be convex surface, and two surfaces are all spherical surface.
5th lens 1050 have positive refracting power, and are glass material, and object side surface 1051 is convex surface, image side surface 1052 be convex surface, and two surfaces are all spherical surface.
6th lens 1060 have negative refracting power, and are glass material, and object side surface 1061 is concave surface, image side surface 1062 be convex surface, and two surfaces are all spherical surface.5th lens image side surface 1052 is engaged with the 6th lens object side surface 1061.
It is all glass that infrared ray, which filters out filter element 1070 and protects the material of glass 1075, is sequentially arranged at the 6th thoroughly Between mirror 1060 and imaging surface 1080, the focal length of optical lens for photographing group is had no effect on.
First lens 1010 are greater than the second lens 1020 in the spacing distance on optical axis with the second lens 1020 and third is saturating Mirror 1030 in spacing distance, the third lens 1030 and the 4th lens 1040 on optical axis on optical axis spacing distance, the 4th thoroughly Mirror 1040 and the 5th lens 1050 on optical axis spacing distance and the 5th lens 1050 and the 6th lens 1060 on optical axis Spacing distance.That is, the first lens 1010 and the second lens 1020 are all two-phases in the spacing distance on optical axis Maximum value of the adjacent lens in the spacing distance on optical axis.
It please cooperate referring to following table 18.
In tenth embodiment, definition described in following table is all identical with the first embodiment, and not in this to go forth.
Above-mentioned image-taking device can be equipped in electronic device.The present invention uses the optical lens for photographing with six-element lens Group has optical lens for photographing group relatively wide wherein the first lens have negative refracting power and contribute to form reverse-focal type structure General imaging region.Second lens can balance the negative refracting power of the first lens with negative refracting power, bend to avoid the first lens Folding power is excessive and generates excessive aberration.The refracting power that 4th lens have positive refracting power and can balance optical lens for photographing group is matched It sets, to provide optical lens for photographing group enough convergence light abilities.5th lens have positive refracting power and can balance the 4th The positive refracting power of lens, it is excessive to avoid the 4th lens refracting power and generate excessive aberration.6th lens have negative refracting power and Total system color difference can be balanced, the incident optical energy of different-waveband is made to converge at same picture point, to promote image quality.It is special when meeting When fixed condition, facilitate with the refracting power distribution of gradual configuration mode reconciliation optical lens for photographing group, to avoid generation Excessive aberration.In addition, can balance system space configuration, while meeting assembling demand, to provide preferable image quality.In addition, Light can be made, by aperture, aperture to be made to play optimum efficiency with angle more appropriate.Furthermore it can make to be set to photographing optical mirror The lens in head group middle section have adequate thickness, squeeze and are deformed in assembling to avoid lens, and then promote assembling yield.It is comprehensive Upper described, optical lens for photographing group provided by the present invention can meet the needs of wide-angle characteristic and high image quality simultaneously.
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 (27)

1. a kind of optical lens for photographing group, which is characterized in that sequentially include by object side to image side:
One first lens have negative refracting power；
One second lens have negative refracting power；
One the third lens；
One the 4th lens have positive refracting power；
One the 5th lens have positive refracting power；And
One the 6th lens have negative refracting power；
Wherein, the lens of the optical lens for photographing group are six, and the optical lens for photographing group further includes an aperture；It should The focal length of first lens is f1, and the focal length of second lens is f2, and the focal length of the third lens is f3, and the third lens are in optical axis On with a thickness of CT3, the 6th lens on optical axis with a thickness of CT6, Yu Guang in all lens of optical lens for photographing group The minimum value of thickness on axis is CTmin, is set in all lens between the aperture and an object closest to the aperture The radius of curvature of lens surface be Rsf, the focal length of the optical lens for photographing group is f, meet following condition:
|f1|<|f2|<|f3|；
4.0<CT3/CTmin≦7.65；
0<CT6/CT3<0.80；And
-1.5<Rsf/f。
2. optical lens for photographing group according to claim 1, which is characterized in that the third lens image side surface is recessed Face.
3. optical lens for photographing group according to claim 1, which is characterized in that the third lens have negative refracting power.
4. optical lens for photographing group according to claim 1, which is characterized in that the aperture be set to the third lens and Between 4th lens.
5. optical lens for photographing group according to claim 1, which is characterized in that be set to the aperture and the object it Between all lens in closest to the aperture the lens surface radius of curvature be Rsf, the coke of the optical lens for photographing group Away from for f, meet following condition:
0<Rsf/f。
6. optical lens for photographing group according to claim 1, which is characterized in that the curvature of the third lens object side surface Radius is R5, and the radius of curvature on the third lens image side surface is R6, meets following condition:
-0.20<(R5-R6)/(R5+R6)<0.35。
7. optical lens for photographing group according to claim 1, which is characterized in that flexion in the optical lens for photographing group The strongest lens of power are in a thickness of CTPmax, the most weak lens of refracting power are in optical axis in the optical lens for photographing group on optical axis On with a thickness of CTPmin, meet following condition:
0.90<CTPmin/CTPmax<10.0。
8. optical lens for photographing group according to claim 1, which is characterized in that the third lens are in the thickness on optical axis For CT3, in the maximum value of the thickness on optical axis it is CTmax in all lens of optical lens for photographing group, meets following item Part:
0.85<CT3/CTmax≦1.0。
9. optical lens for photographing group according to claim 1, which is characterized in that the focal length of first lens is f1, should The focal length of second lens is f2, and the focal length of the third lens is f3, and the focal length of the 4th lens is f4, meets following condition:
(|f1|+|f2|+|f4|)/|f3|<1.0。
10. optical lens for photographing group according to claim 1, which is characterized in that the coke of the optical lens for photographing group Away from for f, the first lens object side surface a to imaging surface is TL in the distance on optical axis, meets following condition:
0<f/TL<0.20；And
2.0 [millimeter] < f < 6.0 [millimeter].
11. optical lens for photographing group according to claim 1, which is characterized in that the focal length of first lens is f1, should The focal length of second lens is f2, and the focal length of the third lens is f3, and the focal length of the 4th lens is f4, the focal length of the 5th lens For f5, the focal length of the 6th lens is f6, and the focal length for being also denoted as i-th lens is fi, meets following condition:
| f3 | > | fi |, which is characterized in that i=1,2,4,5,6.
12. optical lens for photographing group according to claim 1, which is characterized in that the focal length of the third lens is f3, should The focal length of 4th lens is f4, and the focal length of the 5th lens is f5, and the focal length of the optical lens for photographing group is f, under meeting Column condition:
0<f4/f5<1.5；And
-0.30<f/f3<0.30。
13. optical lens for photographing group according to claim 1, which is characterized in that the song on the third lens image side surface Rate radius is R6, and the third lens are in, with a thickness of CT3, meeting following condition on optical axis:
0<R6/CT3<2.5。
14. optical lens for photographing group according to claim 1, which is characterized in that the third lens are in the thickness on optical axis Degree is CT3, and the 6th lens are in, with a thickness of CT6, meeting following condition on optical axis:
0<CT6/CT3<0.35。
15. optical lens for photographing group according to claim 1, which is characterized in that first lens and second lens Synthesis focal length be f12, the focal length of the optical lens for photographing group is f, meet following condition:
-1.45<f12/f<-0.70。
16. a kind of image-taking device, characterized by comprising:
Optical lens for photographing group as described in claim 1；And
One electronics photosensitive element, wherein the electronics photosensitive element is set on an imaging surface of the optical lens for photographing group.
17. a kind of electronic device, characterized by comprising:
Image-taking device as claimed in claim 16.
18. a kind of optical lens for photographing group, which is characterized in that sequentially include by object side to image side:
One first lens have negative refracting power；
One second lens have negative refracting power；
One the third lens；
One the 4th lens have positive refracting power；
One the 5th lens have positive refracting power；And
One the 6th lens have negative refracting power；
Wherein, the lens of the optical lens for photographing group are six, and the optical lens for photographing group further includes an aperture；It should The focal length of first lens is f1, and the focal length of second lens is f2, and the focal length of the third lens is f3, and the third lens are in optical axis On with a thickness of CT3, in all lens of optical lens for photographing group in the minimum value of the thickness on optical axis be CTmin, setting The synthesis focal length of all lens between the aperture and an object is ff, is set to all between the aperture and an imaging surface The synthesis focal length of mirror is fr, is set to the lens surface in all lens between the aperture and the object closest to the aperture Radius of curvature be Rsf, the focal length of the optical lens for photographing group is f, meet following condition:
|f1|<|f2|<|f3|；
4.0<CT3/CTmin≦7.65；
ff/fr<0；And
-1.5<Rsf/f。
19. optical lens for photographing group according to claim 18, which is characterized in that the 4th lens object side surface is convex Face, and first lens and second lens in the spacing distance on optical axis be all two adjacent lens in the interval on optical axis Maximum value in distance.
20. optical lens for photographing group according to claim 18, which is characterized in that the abbe number of the third lens is V3, the abbe number of the 5th lens are V5, and the abbe number of the 6th lens is V6, meet following condition:
0.30<(V3+V6)/V5<1.0。
21. optical lens for photographing group according to claim 18, which is characterized in that the song on the third lens image side surface Rate radius is R6, and the third lens are in, with a thickness of CT3, meeting following condition on optical axis:
0<R6/CT3<2.5。
22. optical lens for photographing group according to claim 21, which is characterized in that the song on the third lens image side surface Rate radius is R6, and the third lens are in, with a thickness of CT3, meeting following condition on optical axis:
0<R6/CT3<1.8。
23. optical lens for photographing group according to claim 18, which is characterized in that the coke of the optical lens for photographing group Away from for f, the focal length of the third lens is f3, meets following condition:
-0.15<f/f3<0.15。
24. optical lens for photographing group according to claim 18, which is characterized in that the third lens have negative flexion Power.
25. optical lens for photographing group according to claim 18, which is characterized in that be set to the aperture and the object Between all lens synthesis focal length be ff, be set to all lens between the aperture and the imaging surface synthesis focal length be fr, It meets following condition:
-1.0<ff/fr<-0.20。
26. optical lens for photographing group according to claim 18, which is characterized in that the song of the third lens object side surface Rate radius is R5, and the radius of curvature on the third lens image side surface is R6, and the radius of curvature of the 5th lens object side surface is R9, The radius of curvature of 5th lens image side surface is R10, meets following condition:
|R9|>|R10|；And
|R5|>|R6|。
27. optical lens for photographing group according to claim 18, which is characterized in that the song of the third lens object side surface Rate radius is R5, and the radius of curvature on the third lens image side surface is R6, meets following condition:
-0.20<(R5-R6)/(R5+R6)<0.35。
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