CN109656001A - Optical lenses for image formation group, image-taking device and electronic device - Google Patents

Optical lenses for image formation group, image-taking device and electronic device Download PDF

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Publication number
CN109656001A
CN109656001A CN201910134991.5A CN201910134991A CN109656001A CN 109656001 A CN109656001 A CN 109656001A CN 201910134991 A CN201910134991 A CN 201910134991A CN 109656001 A CN109656001 A CN 109656001A
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China
Prior art keywords
lens
image
image formation
optical lenses
formation group
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CN201910134991.5A
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CN109656001B (en
Inventor
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
    • 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
    • G02B13/18—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

It sequentially includes the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens by object side to image side that the present invention, which discloses a kind of optical lenses for image formation group, image-taking device and electronic device, optical lenses for image formation group,.First lens have negative refracting power.Second lens have positive refracting power.The third lens object side surface is convex surface at dipped beam axis and image side surface is concave surface at dipped beam axis.5th lens have positive refracting power.6th lens image side surface is concave surface at dipped beam axis.6th lens image side surface has an at least point of inflexion.The lens sum of optical lenses for image formation group is six.Invention additionally discloses the image-taking device with above-mentioned optical lenses for image formation group and with the electronic device of image-taking device.

Description

Optical lenses for image formation group, image-taking device and electronic device
The application is divisional application, the applying date of original application are as follows: on January 22nd, 2016；Application No. is: 201610044563.X；Denomination of invention are as follows: optical lenses for image formation group, image-taking device and electronic device.
Technical field
The present invention relates to a kind of optical lenses for image formation group, image-taking device and electronic device, in particular to one kind is suitable for The optical lenses for image formation group and image-taking device of electronic device.
Background technique
In recent years, flourishing with miniaturization phtographic lens, the demand of minisize image acquisition module increasingly improves, and with Semiconductor process technique progresses greatly so that the Pixel Dimensions of photosensitive element reduce, along with electronic product now with function it is good and Light and short external form is development trend, and therefore, the miniaturization phtographic lens for having good image quality becomes current city Mainstream on field.
Due to high-order smart phone in recent years, wearable device, tablet computer, drive recorder, empty bat machine and image The needs such as identification system obtain the prevailing of the electronic device of a wide range of image, and phtographic lens is to wide viewing angle and high-resolution need Ask more and more harsh, so that the image quality of conventional optical systems has been unable to satisfy above-mentioned high-order electronic device to image quality It is required that.Therefore it provides can apply to high-order electronic device and the miniaturized optical system with high image quality, actually current industry One of the problem of boundary is to be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of optical lenses for image formation group, image-taking device and electronic devices, wherein at As there is positive refracting power with the second lens of optics lens group, it is possible to provide the enough light aggregate capabilities in object side help to contract Short total length and maintain its miniaturization.5th lens have positive refracting power, help to increase the symmetrical of optical lenses for image formation group Property, and then desensitising is to promote image quality.6th lens image side surface is concave surface at dipped beam axis, principal point can be made toward object Side direction is mobile, helps to shorten back focal length and further shorten total length.6th lens image side surface has an at least contrary flexure Point, and facilitate the aberration at further modified off-axis.When a specific condition is satisfied, it is a wide range of to carry out to have enough visual angles Image capture, facilitate control total length, with up to miniaturization purpose.In addition, it is excessive to can avoid the variation of the 4th lens shape And molding is caused to be not easy, and then influence manufacture qualification rate.In conclusion the present invention can meet wide viewing angle, miniaturization, Yi Cheng simultaneously The demands such as type and high qualification rate.
The present invention provides a kind of optical lenses for image formation 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 positive flexion Power.The third lens object side surface is convex surface at dipped beam axis and image side surface is concave surface at dipped beam axis.5th lens have just Refracting power.6th lens image side surface is concave surface at dipped beam axis.6th lens image side surface has an at least point of inflexion.Imaging It is six with the lens sum of optics lens group.The focal length of optical lenses for image formation group is f, the first lens object side surface to imaging Face is TL in the distance on optical axis, and the radius of curvature of the 4th lens object side surface is R7, the curvature half on the 4th lens image side surface Diameter is R8, meet following condition:
1.53≤TL/f<2.85；And
0<(R7+R8)/(R7-R8)<5.0。
The present invention separately provides a kind of image-taking device, and it includes optical lenses for image formation groups above-mentioned and the photosensitive member of an electronics Part, wherein electronics photosensitive element is set on the imaging surface of optical lenses for image formation group.
The present invention separately provides a kind of electronic device, and it includes image-taking devices above-mentioned.
When TL/f meets above-mentioned condition, there can be enough visual angles to carry out large-scale image capture, help to control The total length of lens group, to reach the purpose of miniaturization.
When (R7+R8)/(R7-R8) meets above-mentioned condition, it can avoid the 4th lens shape and change excessive and cause to form It is not easy, and then influences manufacture qualification rate.
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 image-taking device schematic diagram according to eleventh embodiment of the invention；
Figure 22 is sequentially spherical aberration, astigmatism and the distortion curve of the 11st embodiment from left to right；
Figure 23 is painted the image-taking device schematic diagram according to twelveth embodiment of the invention；
Figure 24 is sequentially spherical aberration, astigmatism and the distortion curve of the 12nd embodiment from left to right；
Figure 25 is painted the schematic diagram according to parameter Y11, Y62, Yc62 in first embodiment of the invention；
Figure 26 is painted the schematic diagram according to a kind of electronic device of the invention；
Figure 27 is painted the schematic diagram according to another electronic device of the invention；
Figure 28 is painted the schematic diagram according to another electronic device of the invention；
Figure 29 is painted the schematic diagram according to another electronic device of the invention.
Wherein, appended drawing reference
Capture Zhuan Zhi ︰ 10
Guang Quan ︰ 100,200,300,400,500,600,700,800,900,1000,1100,1200
First Tou Jing ︰ 110,210,310,410,510,610,710,810,910,1010,1110,1210
Object Ce Biao Mian ︰ 111,211,311,411,511,611,711,811,911,1011,1111,1211
As side surface ︰ 112,212,312,412,512,612,712,812,912,1012,1112,1212
2nd saturating mirror ︰ 120,220,320,420,520,620,720,820,920,1020,1120,1220
Object Ce Biao Mian ︰ 121,221,321,421,521,621,721,821,921,1021,1121,1221
As side surface ︰ 122,222,322,422,522,622,722,822,922,1022,1122,1222
San Tou Jing ︰ 130,230,330,430,530,630,730,830,930,1030,1130,1230
Object Ce Biao Mian ︰ 131,231,331,431,531,631,731,831,931,1031,1131,1231
As side surface ︰ 132,232,332,432,532,632,732,832,932,1032,1132,1232
4th Tou Jing ︰ 140,240,340,440,540,640,740,840,940,1040,1140,1240
Object Ce Biao Mian ︰ 141,241,341,441,541,641,741,841,941,1041,1141,1241
As side surface ︰ 142,242,342,442,542,642,742,842,942,1042,1142,1242
5th Tou Jing ︰ 150,250,350,450,550,650,750,850,950,1050,1150,1250
Object Ce Biao Mian ︰ 151,251,351,451,551,651,751,851,951,1051,1151,1251
As side surface ︰ 152,252,352,452,552,652,752,852,952,1052,1152,1252
6th Tou Jing ︰ 160,260,360,460,560,660,760,860,960,1060,1160,1260
Object Ce Biao Mian ︰ 161,261,361,461,561,661,761,861,961,1061,1161,1261
As side surface ︰ 162,262,362,462,562,662,762,862,962,1062,1162,1262
Infrared ray filters out optical element ︰ 170,270,370,470,570,670,770,870,970,1070,1170,1270
Cheng Xiang Mian ︰ 180,280,380,480,580,680,780,880,980,1080,1180,1280
Electronics photosensitive element ︰ 190,290,390,490,590,690,790,890,990,1090,1190,1290
In the maximum value on optical axis in spacing distance between wantonly two adjacent lens in ATmax ︰ optical lenses for image formation group
The first lens of CT1 ︰ are in the thickness on optical axis
Each lens are in the maximum value of thickness on optical axis in CTmax ︰ optical lenses for image formation group
Each lens are in the minimum value of thickness on optical axis in CTmin ︰ optical lenses for image formation group
The focal length of f ︰ optical lenses for image formation group
The focal length of the first lens of f1 ︰
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 focal length of the 5th lens of f5 ︰
The focal length of the 6th lens of f6 ︰
The half at maximum visual angle in HFOV ︰ optical lenses for image formation group
The maximum image height of ImgH ︰ optical lenses for image formation group
The radius of curvature of R1 ︰ the first lens object side surface
The radius of curvature on the first lens image side R2 ︰ 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 ︰
The radius of curvature of the 6th lens object side surface R11 ︰
The radius of curvature on the 6th lens image side surface R12 ︰
SD ︰ aperture is to the 6th lens image side surface in the distance on optical axis
The first lens of T12 ︰ and the second lens are in the spacing distance on optical axis
The second lens of T23 ︰ 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
The 4th lens of T45 ︰ and the 5th lens are in the spacing distance on optical axis
The the first lens object side surface TD ︰ to the 6th lens image side surface is in the distance on optical axis
The the first lens object side surface TL ︰ is to imaging surface in the distance on optical axis
The maximum effective radius of Y11 ︰ the first lens object side surface
The maximum effective radius on the 6th lens image side surface Y62 ︰
Vertical range between the critical point and optical axis on the 6th lens image side surface Yc62 ︰
Specific embodiment
Structural principle and working principle of the invention are described in detail with reference to the accompanying drawing:
Optical lenses for image formation group by object side to image side sequentially include the first lens, the second lens, the third lens, the 4th thoroughly Mirror, the 5th lens and the 6th lens.Wherein, the lens of optical lenses for image formation group are six.
Each two adjacent lens in first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens Between in an airspace, that is, the first lens, the second lens, the third lens, the 4th lens, the 5th lens can be all had on optical axis It can be six single non-bonding (disengaged) lens with the 6th lens.Since the more non-bonding lens of technique of bonding lens are multiple It is miscellaneous, the curved surface of high accuracy need to be especially possessed in the bond area of two lens, to reach the high adaptation when bonding of two lens, and During bonding, it is more likely to cause to move axis defect because of deviation, influences whole optical imagery quality.Therefore, the first lens It can be six single non-bonding lens to the 6th lens, and then effectively avoid the problem that binding lens.
First lens object side surface and at least one of surface in image side surface can have an at least point of inflexion.Whereby, it helps Aberration at modified off-axis.
Second lens have positive refracting power, and object side surface can be convex surface at dipped beam axis.Whereby, it is possible to provide in object side Enough light aggregate capabilities help to shorten the total length of lens group and maintain its miniaturization.
The third lens have a positive refracting power, and object side surface and at least one of surface in image side surface can have at least one anti- Qu Dian.Whereby, the third lens arrange in pairs or groups the second lens can active balance object side light aggregate capabilities, to avoid single lens Refracting power is excessive and generates excessive aberration.
4th lens have positive refracting power, and object side surface can be concave surface at dipped beam axis, and image side surface is in dipped beam axis Place can be convex surface.Whereby, the symmetry with the third lens can be promoted, the generation for slowing down aberration is conducive to.
5th lens have positive refracting power, and object side surface can be concave surface at dipped beam axis, and image side surface is in dipped beam axis Place can be convex surface.Whereby, facilitate the symmetry of increase optical lenses for image formation group, and then desensitising is to promote image product Matter.
6th lens can have negative refracting power, and help to correct Petzval sum number (Petzval sum), so that imaging surface It is more flat.In addition, the 6th lens image side surface is concave surface at dipped beam axis, principal point can be made mobile toward object side direction, help to contract Short back focal length and further shorten total length.In addition, the 6th lens image side surface has an at least point of inflexion, and facilitate into one Walk the aberration at modified off-axis.
Optical lenses for image formation group further includes an aperture, and aperture is configured between the first lens and the third lens.Aperture To the 6th lens image side surface in the distance on optical axis be SD, the first lens object side surface to the 6th lens image side surface is in optical axis On distance be TD, meet following condition: 0.65 < SD/TD.Whereby, aperture position can be balanced, light beam trend is effectively controlled, To have enough field of view angle and image height.
The focal length of optical lenses for image formation group is f, and the first lens object side surface a to imaging surface is in the distance on optical axis TL meets following condition: 0.70 < TL/f < 2.85.Whereby, there can be enough visual angles to carry out large-scale image capture, have Help control the total length of lens group, to reach the purpose of miniaturization.Preferably, it can the following condition of further satisfaction: 0.70 < TL/f<2.45.More preferably, following condition: 0.70 < TL/f≤1.66 can further be met.
The half at maximum visual angle is HFOV in optical lenses for image formation group, can meet following condition: 0.70 < tan (HFOV)<0.98.Whereby, there can be enough image pickup scopes, while distortion can be suppressed effectively to avoid deformation of image.
The radius of curvature of 5th lens image side surface is R10, and the radius of curvature of the 6th lens object side surface is R11, can Meet following condition: -0.95 < R10/R11 < 0.85.Whereby, changed by the face type of control lens, to promote optical path regulation efficiency, Lens are made to reach preferable effect of optimization.
The focal length of first lens is f1, and the focal length of the 4th lens is f4, can meet following condition: -0.80 < f4/f1.It borrows This, can be effectively controlled the configuration of optical lenses for image formation group refracting power, to avoid excessive aberration is generated in object side.
The focal length of first lens is f1, and the focal lengths of the 6th lens is f6, can meet following condition: -5.0 < f6/f1 < 0.50.Whereby, the refracting power of nearly object side Yu nearly image side end can be balanced, to reinforce the control ability at image side end, and then promoted at As quality.
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: 0 < (R7+R8)/(R7-R8) < 5.0.Whereby, it can avoid the 4th lens shape to change excessive and lead to molding not Easily, and then manufacture qualification rate is influenced.
The focal length of second lens is f2, and the focal length of the third lens is f3, can meet following condition: 0 < f2/f3 < 1.50. Whereby, facilitate to reinforce the control ability to the second lens, avoid the volume of optical lenses for image formation group excessive.
First lens are in, with a thickness of CT1, the first lens are in the spacing distance on optical axis with the second lens on optical axis T12, the second lens and the third lens are T23 in the spacing distance on optical axis, can meet following condition: 0.20 < (T12+ T23)/CT1<1.50.Whereby, the space utilization rate for facilitating promotion optical lenses for image formation group, while avoiding space waste Ensure there are enough assembling spaces in favor of the assembling of lens, and then qualification rate can be maintained.
In optical lenses for image formation group between each two adjacent lens in the maximum value on optical axis in spacing distance be ATmax, at Picture is CTmin in the minimum value of thickness on optical axis with lens each in optics lens group, can meet following condition: ATmax/ CTmin<2.0.Whereby, be conducive to the size of appropriately configured each lens and control the thickness proportion of lens, in favor of assembly It manufactures and reaches preferable space utilization rate.
The maximum effective radius of first lens object side surface is Y11, and the maximum effective radius on the 6th lens image side surface is Y62 can meet following condition: Y11/Y62 < 0.90.Whereby, facilitate to control optical path, and ensure to have enough image heights and Biggish photosensitive area receives light, and then can promote image brilliance.Referring to figure 2. 5, it is painted first embodiment of the invention The schematic diagram of parameter Y11, Y62 in optical lenses for image formation group.
The focal length of 5th lens is f5, and the focal lengths of the 6th lens is f6, can meet following condition: -0.85 < f6/f5 < 2.0.Whereby, can counterbalance side and image side end refracting power, to reinforce the control ability at image side end, and then control total length.
There can be the abbe number of at least two lens less than 30 in optical lenses for image formation group.That is, the first lens, There can be at least two abbe numbers saturating less than 30 in two lens, the third lens, the 4th lens, the 5th lens and the 6th lens Mirror.Whereby, can active balance different-waveband light focal position, to avoid image overlap situation generate.
Second lens and the third lens are T23 in the spacing distance on optical axis, and the third lens and the 4th lens are on optical axis Spacing distance be T34, the 4th lens and the 5th lens in the spacing distance on optical axis be T45, following condition can be met: 0.45<T34/(T23+T45).Whereby, it may help to lens group and form symmetrical structure and configuration, and then promote image quality.
In optical lenses for image formation group between each two adjacent lens in the maximum value on optical axis in spacing distance be ATmax, at As the maximum image height of optics lens group is ImgH (i.e. the one of effective sensing region diagonal line overall length of electronics photosensitive element Half) following condition: ATmax/ImgH≤0.23, can be met.Whereby, it can be ensured that space makes full use of, and is provided simultaneously with enough Area receive light.
In optical lenses for image formation group between each two adjacent lens in the maximum value on optical axis in spacing distance be ATmax, at Picture is CTmax in the maximum value of thickness on optical axis with lens each in optics lens group, can meet following condition: 1.1 < CTmax/ ATmax<5.0.Whereby, can in active balance optical lenses for image formation group lens configuration, it is simultaneous while promoting image quality Care for desensitising.
First lens object side surface to the 6th lens image side surface is TD, the 6th lens image side surface in the distance on optical axis Critical point and optical axis between vertical range be Yc62, following condition: 1.0 < TD/Yc62 < 4.0 can be met.Whereby, it can correct The aberration of off-axis visual field, and effectively control curvature of the image.Referring to figure 2. 5, it is painted the imagery optical of first embodiment of the invention The schematic diagram of parameter Yc62 in lens group.The critical point (Critical Point) of 6th lens image side surface is perpendicular to light Point of contact on the tangent line of the section of axis and the 6th lens image side plane tangent；It is noted that critical point is not on optical axis.
The radius of curvature of 6th lens object side surface is R11, and the radius of curvature on the 6th lens image side surface is R12, can Meet following condition: 0.50 < (R11+R12)/(R11-R12) < 2.80.Whereby, the face type that the 6th lens can be effectively controlled, avoids Lens overbending and the generation for leading to stray light.
The radius of curvature of first lens object side surface is R1, and the radius of curvature on the first lens image side surface is R2, can be expired Foot column condition: (R1-R2)/(R1+R2) < 0.50.Whereby, the shape that the first lens can be effectively controlled is conducive to correct astigmatism.
The focal length of optical lenses for image formation group be f, the first lens and the second lens in the spacing distance on optical axis be T12, It can meet following condition: 0 < T12/f < 0.10.Whereby, the spacing of the first lens and the second lens can be effectively shortened, Jin Eryou Conducive to the miniaturization of optical lenses for image formation group.
The invention discloses optical lenses for image formation 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, it can make to be emitted pupil (Exit Pupil) and imaging surface generates longer distance, make it have Telecentricity (Telecentric) effect, and the CCD or CMOS that can increase electronics photosensitive element receive the efficiency of image；It is set if in Aperture facilitates the field angle of expansion system, and lens group is made to have the advantage of wide-angle lens.
The invention discloses optical lenses for image formation 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 invention discloses optical lenses for image formation group in, if lens surface is convex surface and when not defining the convex surface position, Then indicate that the convex surface can be located at lens surface dipped beam axis；If lens surface is concave surface and does not define the concave surface position, table Show that the concave surface can be located at lens surface dipped beam axis.If the refracting power or focal length of lens do not define its regional location, then it represents that The refracting power or focal length of the lens can be refracting power or focal length of the lens at dipped beam axis.
The invention discloses optical lenses for image formation group in, the imaging surface of optical lenses for image formation 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.
In optical lenses for image formation group of the present invention, may be provided with an at least diaphragm, can be located at the first lens before, it is each Between mirror or after last lens, the type such as credit light diaphragm (Glare Stop) or field stop (Field of the diaphragm Stop) etc., it can be used to reduce stray light, help to promote image quality.
The present invention more provides a kind of image-taking device, it includes aforementioned optical lenses for image formation group and electronics photosensitive element, Wherein electronics photosensitive element is set on the imaging surface of optical lenses for image formation group.Preferably, the image-taking device can be wrapped further Containing lens barrel, support device (Holder Member) or combinations thereof.
Referring to figure 2. 6,27,28 and 29, image-taking device 10 many-sided can be applied to smart phone (as shown in figure 26), put down The electronics such as plate computer (as shown in figure 27), wearable device (as shown in figure 28) and drive recorder (as shown in figure 29) fill It sets.Preferably, electronic device can further include control unit, display unit, storage element, random access memory (RAM) Or combinations thereof.
The more visual demand of optical lenses for image formation 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, digital flat, smart television, network monitoring device, drive recorder, reversing developing apparatus, somatic sensation television game machine In the electronic devices such as wearable device.Before take off electronic device only and be and exemplarily illustrate practice example of the invention, and The operation strategies of unrestricted image-taking device of the invention.
According to above embodiment, specific embodiment set forth below simultaneously cooperates attached drawing to be described in detail.
<first embodiment>
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is painted the image-taking device schematic diagram according to first embodiment of the invention, Fig. 2 by Left-to-right is sequentially spherical aberration, astigmatism and the distortion curve of first embodiment.As shown in Figure 1, image-taking device includes that imaging is used Optical lens group (not another label) and electronics photosensitive element 190.Optical lenses for image formation group sequentially includes by object side to image side One lens 110, aperture 100, the second lens 120, the third lens 130, 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 lenses for image formation group are six.
First lens 110 have negative refracting power, and are plastic cement material, and object side surface 111 is concave surface at dipped beam axis, Image side surface 112 at dipped beam axis be convex surface, two surfaces be all it is aspherical, object side surface 111 all has with image side surface 112 There is an at least point of inflexion.
Second lens 120 have positive refracting power, and are plastic cement material, and object side surface 121 is convex surface at dipped beam axis, Image side surface 122 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 130 have positive refracting power, and are plastic cement material, and object side surface 131 is convex surface at dipped beam axis, Image side surface 132 at dipped beam axis be concave surface, two surfaces be all it is aspherical, object side surface 131 all has with image side surface 132 There is an at least point of inflexion.
4th lens 140 have positive refracting power, and are plastic cement material, and object side surface 141 is concave surface at dipped beam axis, Image side surface 142 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 150 have positive refracting power, and are plastic cement material, and object side surface 151 is concave surface at dipped beam axis, Image side surface 152 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 160 have negative refracting power, and are plastic cement material, and object side surface 161 is convex surface at dipped beam axis, Image side surface 162 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 162 have an at least point of inflexion.
In the present embodiment, optical lenses for image formation group has the abbe number of two lens to be smaller than 30.Such as following table one Shown, the abbe number of the third lens 130 and the 5th lens 150 is smaller than 30.
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 lenses for image formation group.
The aspherical fitting equation of above-mentioned each lens is expressed as follows:
In the optical lenses for image formation group of first embodiment, the focal length of optical lenses for image formation group is f, imagery optical mirror The f-number (F-number) of head group is Fno, and the half at maximum visual angle is HFOV in optical lenses for image formation group, and numerical value is such as Under: f=1.96 millimeters (mm), Fno=1.95, HFOV=39.3 degree (deg.).
First lens 110 are in, with a thickness of CT1, the first lens 110 and the second lens 120 are in the interval on optical axis on optical axis Distance is T12, and the second lens 120 are T23 in the spacing distance on optical axis with the third lens 130, meets following condition: (T12 + T23)/CT1=0.62.
Second lens 120 and the third lens 130 are T23, the third lens 130 and the 4th lens in the spacing distance on optical axis 140 in the spacing distance on optical axis be T34, the 4th lens 140 and the 5th lens 150 in the spacing distance on optical axis be T45, Meet following condition: T34/ (T23+T45)=1.14.
The focal length of optical lenses for image formation group is f, and the first lens 110 and the second lens 120 are in the spacing distance on optical axis T12 meets following condition: T12/f=0.02.
In optical lenses for image formation group between each two adjacent lens in the maximum value on optical axis in spacing distance be ATmax, at Picture is CTmax in the maximum value of thickness on optical axis with lens each in optics lens group, meets following condition: CTmax/ATmax =2.58.In the present embodiment, the 4th lens 140 are greater than other lenses in the thickness on optical axis in the thickness on optical axis, Thus CTmax is the 4th lens 140 in the thickness on optical axis.In addition, in the present embodiment, the third lens 130 and the 4th Lens 140 are in the spacing distance on optical axis between the spacing distance on optical axis is greater than other adjacent two lens, thus ATmax is The third lens 130 and the 4th lens 140 are in the spacing distance on optical axis.
In optical lenses for image formation group between each two adjacent lens in the maximum value on optical axis in spacing distance be ATmax, at Picture is CTmin in the minimum value of thickness on optical axis with lens each in optics lens group, meets following condition: ATmax/CTmin =0.96.In the present embodiment, the first lens 110 are less than other lenses in the thickness on optical axis in the thickness on optical axis, Thus CTmin is the first lens 110 in the thickness on optical axis.
In optical lenses for image formation group between each two adjacent lens in the maximum value on optical axis in spacing distance be ATmax, at The maximum image height of picture optics lens group is ImgH, meets following condition: ATmax/ImgH=0.10.
The radius of curvature of first lens object side surface 111 is R1, and the radius of curvature on the first lens image side surface 112 is R2, It meets following condition: (R1-R2)/(R1+R2)=- 0.18.
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)/(R7-R8)=1.13.
The radius of curvature R 11 of 6th lens object side surface 161, the radius of curvature R 12 on the 6th lens image side surface 162, Meet following condition: (R11+R12)/(R11-R12)=2.31.
The radius of curvature of 5th lens image side surface 152 is R10, and the radius of curvature of the 6th lens object side surface 161 is R11 meets following condition: R10/R11=-0.46.
The focal length of second lens 120 is f2, and the focal length of the third lens 130 is f3, meets following condition: f2/f3= 0.19。
The focal length of first lens 110 is f1, and the focal length of the 4th lens 140 is f4, meets following condition: f4/f1=- 0.08。
The focal length of 5th lens 150 is f5, and the focal length of the 6th lens 160 is f6, meets following condition: f6/f5=- 0.11。
The focal length of first lens 110 is f1, and the focal length of the 6th lens 160 is f6, meets following condition: f6/f1= 0.11。
The maximum effective radius of first lens object side surface 111 is Y11, and the maximum on the 6th lens image side surface 162 is effectively Radius is Y62, meets following condition: Y11/Y62=0.56.
100 to the 6th lens image side surface 162 of aperture in the distance on optical axis be SD, the first lens object side surface 111 to 6th lens image side surface 162 is TD in the distance on optical axis, meets following condition: SD/TD=0.85.
First lens object side surface, 111 to the 6th lens image side surface 162 is TD, the 6th lens picture in the distance on optical axis Vertical range between the critical point and optical axis of side surface 162 is Yc62, meets following condition: TD/Yc62=2.53.
The focal length of optical lenses for image formation 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: TL/f=1.53.
The half at maximum visual angle is HFOV in optical lenses for image formation group, meets following condition: tan (HFOV)= 0.82。
Cooperation is referring to following table one and table two.
Table one is the detailed structured data of Fig. 1 first embodiment, and wherein the unit of radius of curvature, thickness and focal length is millimeter (mm), and surface 0 to 16 is sequentially indicated by the surface of object side to image side.Table two is the aspherical surface data in first embodiment, In, k is the conical surface coefficient in aspheric curve equation, and A4 to A16 then indicates each the 4 to 16th rank asphericity coefficient of surface.This Outside, following embodiment table is the schematic diagram and aberration curve figure of corresponding each embodiment, and the definition of data is all with the in table The definition of the table one and table two of one embodiment is identical, and not in this to go forth.
<second embodiment>
Referring to figure 3. and Fig. 4, wherein Fig. 3 is painted the image-taking device schematic diagram according to second embodiment of the invention, Fig. 4 by Left-to-right is sequentially spherical aberration, astigmatism and the distortion curve of second embodiment.From the figure 3, it may be seen that image-taking device includes that imaging is used Optical lens group (not another label) and electronics photosensitive element 290.Optical lenses for image formation group sequentially includes by object side to image side One lens 210, aperture 200, the second lens 220, the third lens 230, the 4th lens 240, the 5th lens 250, the 6th lens 260, infrared ray filters out filter element (IR-cut Filter) 270 and imaging surface 280.Wherein, electronics photosensitive element 190 is arranged In on imaging surface 180.The lens (210-260) of optical lenses for image formation group are six.
First lens 210 have positive refracting power, and are plastic cement material, and object side surface 211 is convex surface at dipped beam axis, Image side surface 212 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 220 have positive refracting power, and are plastic cement material, and object side surface 221 is convex surface at dipped beam axis, Image side surface 222 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 230 have positive refracting power, and are plastic cement material, and object side surface 231 is convex surface at dipped beam axis, Image side surface 232 at dipped beam axis be concave surface, two surfaces be all it is aspherical, object side surface 231 all has with image side surface 232 There is an at least point of inflexion.
4th lens 240 have positive refracting power, and are plastic cement material, and object side surface 241 is convex surface at dipped beam axis, Image side surface 242 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 250 have positive refracting power, and are plastic cement material, and object side surface 251 is concave surface at dipped beam axis, Image side surface 252 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 260 have negative refracting power, and are plastic cement material, and object side surface 261 is convex surface at dipped beam axis, Image side surface 262 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 262 have an at least point of inflexion.
In the present embodiment, optical lenses for image formation group has the abbe number of two lens to be smaller than 30.Such as following table three Shown, the abbe number of the third lens 230 and the 5th lens 250 is smaller than 30.
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 lenses for image formation 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 390.Optical lenses for image formation group sequentially includes light by object side to image side Enclose the 300, first lens 310, the second lens 320, the third lens 330, the 4th lens 340, the 5th lens 350, the 6th lens 360, infrared ray filters out filter element (IR-cut Filter) 370 and imaging surface 380.Wherein, electronics photosensitive element 390 is arranged In on imaging surface 380.The lens (310-360) of optical lenses for image formation group are six.
First lens 310 have negative refracting power, and are plastic cement material, and object side surface 311 is convex surface at dipped beam axis, Image side surface 312 at dipped beam axis be concave surface, two surfaces be all it is aspherical, object side surface 311 all has with image side surface 312 There is an at least point of inflexion.
Second lens 320 have positive refracting power, and are plastic cement material, and object side surface 321 is convex surface at dipped beam axis, Image side surface 322 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 330 have positive refracting power, and are plastic cement material, and object side surface 331 is convex surface at dipped beam axis, Image side surface 332 at dipped beam axis be concave surface, two surfaces be all it is aspherical, object side surface 331 all has with image side surface 332 There is an at least point of inflexion.
4th lens 340 have positive refracting power, and are plastic cement material, and object side surface 341 is concave surface at dipped beam axis, Image side surface 342 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 350 have positive refracting power, and are plastic cement material, and object side surface 351 is concave surface at dipped beam axis, Image side surface 352 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 360 have negative refracting power, and are plastic cement material, and object side surface 361 is convex surface at dipped beam axis, Image side surface 362 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 362 have an at least point of inflexion.
In the present embodiment, optical lenses for image formation group has the abbe number of four lens to be smaller than 30.Such as following table five It is shown, the first lens 310, the third lens 330, the 5th lens 350 and the 6th lens 360 abbe number be smaller than 30.
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 lenses for image formation 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 490.Optical lenses for image formation group sequentially includes light by object side to image side Enclose the 400, first lens 410, the second lens 420, the third lens 430, the 4th lens 440, the 5th lens 450, the 6th lens 460, infrared ray filters out filter element (IR-cut Filter) 470 and imaging surface 480.Wherein, electronics photosensitive element 490 is arranged In on imaging surface 480.The lens (410-460) of optical lenses for image formation group are six.
First lens 410 have negative refracting power, and are plastic cement material, and object side surface 411 is convex surface at dipped beam axis, Image side surface 412 at dipped beam axis be concave surface, two surfaces be all it is aspherical, object side surface 411 all has with image side surface 412 There is an at least point of inflexion.
Second lens 420 have positive refracting power, and are plastic cement material, and object side surface 421 is convex surface at dipped beam axis, Image side surface 422 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 430 have positive refracting power, and are plastic cement material, and object side surface 431 is convex surface at dipped beam axis, Image side surface 432 at dipped beam axis be concave surface, two surfaces be all it is aspherical, object side surface 431 all has with image side surface 432 There is an at least point of inflexion.
4th lens 440 have positive refracting power, and are plastic cement material, and object side surface 441 is concave surface at dipped beam axis, Image side surface 442 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 450 have positive refracting power, and are plastic cement material, and object side surface 451 is concave surface at dipped beam axis, Image side surface 452 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 460 have negative refracting power, and are plastic cement material, and object side surface 461 is concave surface at dipped beam axis, Image side surface 462 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 462 have an at least point of inflexion.
In the present embodiment, optical lenses for image formation group has the abbe number of four lens to be smaller than 30.Such as following table seven It is shown, the first lens 410, the third lens 430, the 5th lens 450 and the 6th lens 460 abbe number be smaller than 30.
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 lenses for image formation 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 optics lens group (not another label) and electronics photosensitive element 590.Optical lenses for image formation group sequentially includes by object side to image side First lens 510, the second lens 520, aperture 500, the third lens 530, the 4th lens 540, the 5th lens 550, the 6th lens 560, infrared ray filters out filter element (IR-cut Filter) 570 and imaging surface 580.Wherein, electronics photosensitive element 590 is arranged In on imaging surface 580.The lens (510-560) of optical lenses for image formation group are six.
First lens 510 have positive refracting power, and are plastic cement material, and object side surface 511 is concave surface at dipped beam axis, Image side surface 512 at dipped beam axis be convex surface, two surfaces be all it is aspherical, object side surface 511 all has with image side surface 512 There is an at least point of inflexion.
Second lens 520 have positive refracting power, and are plastic cement material, and object side surface 521 is convex surface at dipped beam axis, Image side surface 522 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 530 have positive refracting power, and are plastic cement material, and object side surface 531 is convex surface at dipped beam axis, Image side surface 532 at dipped beam axis be concave surface, two surfaces be all it is aspherical, object side surface 531 all has with image side surface 532 There is an at least point of inflexion.
4th lens 540 have positive refracting power, and are plastic cement material, and object side surface 541 is convex surface at dipped beam axis, Image side surface 542 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 550 have positive refracting power, and are plastic cement material, and object side surface 551 is concave surface at dipped beam axis, Image side surface 552 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 560 have negative refracting power, and are plastic cement material, and object side surface 561 is convex surface at dipped beam axis, Image side surface 562 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 562 have an at least point of inflexion.
In the present embodiment, optical lenses for image formation group has the abbe number of two lens to be smaller than 30.Such as following table nine Shown, the abbe number of the third lens 530 and the 5th lens 550 is smaller than 30.
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 lenses for image formation 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 optics lens group (not another label) and electronics photosensitive element 690.Optical lenses for image formation group is sequentially wrapped by object side to image side Thoroughly containing the first lens 610, the second lens 620, aperture 600, the third lens 630, the 4th lens 640, the 5th lens the 650, the 6th Mirror 660, infrared ray filter out filter element (IR-cut Filter) 670 and imaging surface 680.Wherein, electronics photosensitive element 690 is set It is placed on imaging surface 680.The lens (610-660) of optical lenses for image formation group are six.
First lens 610 have negative refracting power, and are plastic cement material, and object side surface 611 is concave surface at dipped beam axis, Image side surface 612 at dipped beam axis be convex surface, two surfaces be all it is aspherical, object side surface 611 all has with image side surface 612 There is an at least point of inflexion.
Second lens 620 have positive refracting power, and are plastic cement material, and object side surface 621 is convex surface at dipped beam axis, Image side surface 622 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 630 have positive refracting power, and are plastic cement material, and object side surface 631 is convex surface at dipped beam axis, Image side surface 632 at dipped beam axis be concave surface, two surfaces be all it is aspherical, object side surface 631 all has with image side surface 632 There is an at least point of inflexion.
4th lens 640 have positive refracting power, and are plastic cement material, and object side surface 641 is convex surface at dipped beam axis, Image side surface 642 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 650 have positive refracting power, and are plastic cement material, and object side surface 651 is concave surface at dipped beam axis, Image side surface 652 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 660 have negative refracting power, and are plastic cement material, and object side surface 661 is convex surface at dipped beam axis, Image side surface 662 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 662 have an at least point of inflexion.
In the present embodiment, optical lenses for image formation group has the abbe number of two lens to be smaller than 30.Such as following table ten Shown in one, the abbe number of the third lens 630 and the 5th lens 650 is smaller than 30.
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 lenses for image formation 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 optics lens group (not another label) and electronics photosensitive element 790.Optical lenses for image formation group is sequentially wrapped by object side to image side Thoroughly containing the first lens 710, the second lens 720, aperture 700, the third lens 730, the 4th lens 740, the 5th lens the 750, the 6th Mirror 760, infrared ray filter out filter element (IR-cut Filter) 770 and imaging surface 780.Wherein, electronics photosensitive element 790 is set It is placed on imaging surface 780.The lens (710-760) of optical lenses for image formation group are six.
First lens 710 have negative refracting power, and are plastic cement material, and object side surface 711 is concave surface at dipped beam axis, Image side surface 712 at dipped beam axis be convex surface, two surfaces be all it is aspherical, object side surface 711 all has with image side surface 712 There is an at least point of inflexion.
Second lens 720 have positive refracting power, and are plastic cement material, and object side surface 721 is convex surface at dipped beam axis, Image side surface 722 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 730 have positive refracting power, and are plastic cement material, and object side surface 731 is convex surface at dipped beam axis, Image side surface 732 at dipped beam axis be concave surface, two surfaces be all it is aspherical, object side surface 731 have an at least point of inflexion.
4th lens 740 have positive refracting power, and are plastic cement material, and object side surface 741 is convex surface at dipped beam axis, Image side surface 742 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 750 have positive refracting power, and are plastic cement material, and object side surface 751 is concave surface at dipped beam axis, Image side surface 752 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 760 have negative refracting power, and are plastic cement material, and object side surface 761 is concave surface at dipped beam axis, Image side surface 762 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 762 have an at least point of inflexion.
In the present embodiment, optical lenses for image formation group has the abbe number of two lens to be smaller than 30.Such as following table ten Shown in three, the first lens 710 and the abbe number of the third lens 730 are smaller than 30.
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 lenses for image formation 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 optics lens group (not another label) and electronics photosensitive element 890.Optical lenses for image formation group is sequentially wrapped by object side to image side Thoroughly containing the first lens 810, aperture 800, the second lens 820, the third lens 830, the 4th lens 840, the 5th lens the 850, the 6th Mirror 860, infrared ray filter out filter element (IR-cut Filter) 870 and imaging surface 880.Wherein, electronics photosensitive element 890 is set It is placed on imaging surface 880.The lens (810-860) of optical lenses for image formation group are six.
First lens 810 have positive refracting power, and are plastic cement material, and object side surface 811 is concave surface at dipped beam axis, Image side surface 812 at dipped beam axis be convex surface, two surfaces be all it is aspherical, object side surface 811 all has with image side surface 812 There is an at least point of inflexion.
Second lens 820 have positive refracting power, and are plastic cement material, and object side surface 821 is convex surface at dipped beam axis, Image side surface 822 is convex surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 830 have positive refracting power, and are plastic cement material, and object side surface 831 is concave surface at dipped beam axis, Image side surface 832 at dipped beam axis be convex surface, two surfaces be all it is aspherical, image side surface 832 have an at least point of inflexion.
4th lens 840 have positive refracting power, and are plastic cement material, and object side surface 841 is concave surface at dipped beam axis, Image side surface 842 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 850 have positive refracting power, and are plastic cement material, and object side surface 851 is concave surface at dipped beam axis, Image side surface 852 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 860 have negative refracting power, and are plastic cement material, and object side surface 861 is convex surface at dipped beam axis, Image side surface 862 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 862 have an at least point of inflexion.
In the present embodiment, optical lenses for image formation group has the abbe number of three pieces lens to be smaller than 30.Such as following table ten Shown in five, the abbe number of the third lens 830, the 5th lens 850 and the 6th lens 860 is smaller than 30.
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 lenses for image formation 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.
<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 include at As using optics lens group (not another label) and electronics photosensitive element 990.Optical lenses for image formation group is sequentially wrapped by object side to image side Thoroughly containing the first lens 910, aperture 900, the second lens 920, the third lens 930, the 4th lens 940, the 5th lens the 950, the 6th Mirror 960, infrared ray filter out filter element (IR-cut Filter) 970 and imaging surface 980.Wherein, electronics photosensitive element 990 is set It is placed on imaging surface 980.The lens (910-960) of optical lenses for image formation group are six.
First lens 910 have positive refracting power, and are plastic cement material, and object side surface 911 is convex surface at dipped beam axis, Image side surface 912 at dipped beam axis be convex surface, two surfaces be all it is aspherical, image side surface 912 have an at least point of inflexion.
Second lens 920 have positive refracting power, and are plastic cement material, and object side surface 921 is convex surface at dipped beam axis, Image side surface 922 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 930 have positive refracting power, and are plastic cement material, and object side surface 931 is convex surface at dipped beam axis, Image side surface 932 at dipped beam axis be convex surface, two surfaces be all it is aspherical, object side surface 931 have an at least point of inflexion.
4th lens 940 have positive refracting power, and are plastic cement material, and object side surface 941 is concave surface at dipped beam axis, Image side surface 942 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 950 have positive refracting power, and are plastic cement material, and object side surface 951 is concave surface at dipped beam axis, Image side surface 952 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 960 have negative refracting power, and are plastic cement material, and object side surface 961 is convex surface at dipped beam axis, Image side surface 962 at dipped beam axis be concave surface, two surfaces be all it is aspherical, image side surface 962 have an at least point of inflexion.
In the present embodiment, optical lenses for image formation group has the abbe number of a piece of lens to be smaller than 30.Such as following table ten Shown in seven, the abbe number of the 6th lens 960 is less than 30.
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 lenses for image formation group.
It please cooperate referring to following table 17 and table 18.
In 9th 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 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 include at As using optics lens group (not another label) and electronics photosensitive element 1090.Optical lenses for image formation group is sequentially wrapped by object side to image side Containing the first lens 1010, aperture 1000, the second lens 1020, the third lens 1030, the 4th lens 1040, the 5th lens 1050, 6th lens 1060, infrared ray filter out filter element (IR-cut Filter) 1070 and imaging surface 1080.Wherein, electronics is photosensitive Element 1090 is set on imaging surface 1080.The lens (1010-1060) of optical lenses for image formation group are six.
First lens 1010 have negative refracting power, and are plastic cement material, and object side surface 1011 is convex surface at dipped beam axis, Its image side surface 1012 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 1020 have positive refracting power, and are plastic cement material, and object side surface 1021 is convex surface at dipped beam axis, Its image side surface 1022 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 1030 have positive refracting power, and are plastic cement material, and object side surface 1031 is concave surface at dipped beam axis, Its image side surface 1032 is convex surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 1032 has at least one anti- Qu Dian.
4th lens 1040 have positive refracting power, and are plastic cement material, and object side surface 1041 is concave surface at dipped beam axis, Its image side surface 1042 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 1050 have positive refracting power, and are plastic cement material, and object side surface 1051 is concave surface at dipped beam axis, Its image side surface 1052 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 1060 have negative refracting power, and are plastic cement material, and object side surface 1061 is convex surface at dipped beam axis, Its image side surface 1062 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 1062 has at least one anti- Qu Dian.
In the present embodiment, optical lenses for image formation group has the abbe number of two lens to be smaller than 30.Such as following table ten Shown in nine, the abbe number of the first lens 1010 and the 6th lens 1060 is smaller than 30.
The material that infrared ray filters out filter element 1070 is glass, be set to the 6th lens 1060 and imaging surface 1080 it Between, have no effect on the focal length of optical lenses for image formation group.
It please cooperate referring to following table 19 and table 20.
In tenth 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 11st embodiment>
1 and Figure 22 referring to figure 2., wherein Figure 21 is painted the image-taking device schematic diagram according to eleventh embodiment of the invention, Figure 22 is sequentially spherical aberration, astigmatism and the distortion curve of the 11st embodiment from left to right.As shown in Figure 21, image-taking device packet Group containing optical lenses for image formation (not another label) and electronics photosensitive element 1190.Optical lenses for image formation group by object side to image side according to Sequence includes the first lens 1110, aperture 1100, the second lens 1120, the third lens 1130, the 4th lens 1140, the 5th lens 1150, the 6th lens 1160, infrared ray filter out filter element (IR-cut Filter) 1170 and imaging surface 1180.Wherein, electronics Photosensitive element 1190 is set on imaging surface 1180.The lens (1110-1160) of optical lenses for image formation group are six.
First lens 1110 have positive refracting power, and are plastic cement material, and object side surface 1111 is convex surface at dipped beam axis, Its image side surface 1112 is convex surface at dipped beam axis, two surfaces be all it is aspherical, object side surface 1111 has at least one anti- Qu Dian.
Second lens 1120 have positive refracting power, and are plastic cement material, and object side surface 1121 is convex surface at dipped beam axis, Its image side surface 1122 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 1130 have positive refracting power, and are plastic cement material, and object side surface 1131 is convex surface at dipped beam axis, Its image side surface 1132 is concave surface at dipped beam axis, and two surfaces are all aspherical, object side surface 1131 and image side surface 1132 all have an at least point of inflexion.
4th lens 1140 have positive refracting power, and are plastic cement material, and object side surface 1141 is convex surface at dipped beam axis, Its image side surface 1142 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 1150 have positive refracting power, and are plastic cement material, and object side surface 1151 is concave surface at dipped beam axis, Its image side surface 1152 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 1160 have negative refracting power, and are plastic cement material, and object side surface 1161 is convex surface at dipped beam axis, Its image side surface 1162 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 1162 has at least one anti- Qu Dian.
In the present embodiment, optical lenses for image formation group has the abbe number of two lens to be smaller than 30.Such as following table two Shown in 11, the abbe number of the second lens 1120 and the 5th lens 1150 is smaller than 30.
The material that infrared ray filters out filter element 1170 is glass, be set to the 6th lens 1160 and imaging surface 1180 it Between, have no effect on the focal length of optical lenses for image formation group.
It please cooperate referring to following table 21 and table 22.
In 11st embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following table Definition be all identical with the first embodiment, not in this to go forth.
<the 12nd embodiment>
3 and Figure 24 referring to figure 2., wherein Figure 23 is painted the image-taking device schematic diagram according to twelveth embodiment of the invention, Figure 24 is sequentially spherical aberration, astigmatism and the distortion curve of the 12nd embodiment from left to right.As shown in Figure 23, image-taking device packet Group containing optical lenses for image formation (not another label) and electronics photosensitive element 1290.Optical lenses for image formation group by object side to image side according to Sequence includes the first lens 1210, aperture 1200, the second lens 1220, the third lens 1230, the 4th lens 1240, the 5th lens 1250, the 6th lens 1260, infrared ray filter out filter element (IR-cut Filter) 1270 and imaging surface 1280.Wherein, electronics Photosensitive element 1290 is set on imaging surface 1280.The lens (1210-1260) of optical lenses for image formation group are six.
First lens 1210 have negative refracting power, and are plastic cement material, and object side surface 1211 is convex surface at dipped beam axis, Its image side surface 1212 is concave surface at dipped beam axis, two surfaces be all it is aspherical, object side surface 1211 has at least one anti- Qu Dian.
Second lens 1220 have positive refracting power, and are plastic cement material, and object side surface 1221 is convex surface at dipped beam axis, Its image side surface 1222 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The third lens 1230 have positive refracting power, and are plastic cement material, and object side surface 1231 is convex surface at dipped beam axis, Its image side surface 1232 is concave surface at dipped beam axis, and two surfaces are all aspherical, object side surface 1231 and image side surface 1232 all have an at least point of inflexion.
4th lens 1240 have positive refracting power, and are plastic cement material, and object side surface 1241 is convex surface at dipped beam axis, Its image side surface 1242 is concave surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 1250 have positive refracting power, and are plastic cement material, and object side surface 1251 is convex surface at dipped beam axis, Its image side surface 1252 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 1260 have negative refracting power, and are plastic cement material, and object side surface 1261 is concave surface at dipped beam axis, Its image side surface 1262 is concave surface at dipped beam axis, two surfaces be all it is aspherical, image side surface 1262 has at least one anti- Qu Dian.
In the present embodiment, optical lenses for image formation group has the abbe number of four lens to be smaller than 30.Such as following table two Shown in 13, the first lens 1210, the third lens 1230, the 5th lens 1250 and the 6th lens 1260 abbe number be smaller than 30。
The material that infrared ray filters out filter element 1270 is glass, be set to the 6th lens 1260 and imaging surface 1280 it Between, have no effect on the focal length of optical lenses for image formation group.
It please cooperate referring to following table 23 and table 24.
In 12nd embodiment, aspherical fitting equation indicates the form such as first embodiment.In addition, described in following table Definition be all identical with the first embodiment, not in this to go forth.
Although the present invention has been disclosed by way of example above, it is not intended to limit the present invention..It is any to be familiar with this those skilled in the art, Without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations.Therefore protection scope of the present invention is when view Subject to range defined in the attached claims.

Claims (23)

  1. It sequentially include that one first lens, one second lens, a third are saturating by object side to image side 1. a kind of optical lenses for image formation group Mirror, one the 4th lens, one the 5th lens and one the 6th lens, which is characterized in that first lens have negative refracting power, this Two lens have positive refracting power, which is convex surface at dipped beam axis and image side surface is recessed at dipped beam axis Face, the 5th lens have positive refracting power, and the 6th lens image side surface is concave surface, the 6th lens image side table at dipped beam axis Face has an at least point of inflexion；
    Wherein, the lens sum of the optical lenses for image formation group is six, and the focal length of the optical lenses for image formation group is f, this One lens object side surface a to imaging surface is TL in the distance on optical axis, and the radius of curvature of the 4th lens object side surface is R7, The radius of curvature of 4th lens image side surface is R8, meets following condition:
    1.53≤TL/f<2.85；And
    0<(R7+R8)/(R7-R8)<5.0。
  2. 2. optical lenses for image formation group according to claim 1, which is characterized in that the 6th lens have negative refracting power.
  3. 3. optical lenses for image formation group according to claim 1, which is characterized in that the first lens object side surface is in dipped beam It is concave surface at axis.
  4. 4. optical lenses for image formation group according to claim 1, which is characterized in that the third lens object side surface and image side At least one of surface in surface has an at least point of inflexion.
  5. 5. optical lenses for image formation group according to claim 1, which is characterized in that the focal length of first lens is f1, should The focal length of 4th lens is f4, meets following condition:
    -0.80<f4/f1。
  6. 6. optical lenses for image formation group according to claim 1, which is characterized in that second lens and the third lens in Spacing distance on optical axis is T23, which is T34 in the spacing distance on optical axis with the 4th lens, and the 4th thoroughly Mirror is T45 in the spacing distance on optical axis with the 5th lens, meets following condition:
    0.45<T34/(T23+T45)。
  7. 7. optical lenses for image formation group according to claim 1, which is characterized in that each two in the optical lenses for image formation group It in the maximum value on optical axis in spacing distance is ATmax between adjacent lens, each lens are in optical axis in the optical lenses for image formation group The maximum value of upper thickness is CTmax, meets following condition:
    1.1<CTmax/ATmax<5.0。
  8. 8. optical lenses for image formation group according to claim 1, which is characterized in that the optical lenses for image formation group further includes One aperture, the aperture are set between first lens and the third lens.
  9. 9. optical lenses for image formation group according to claim 8, which is characterized in that the aperture be set to first lens with Between second lens.
  10. 10. optical lenses for image formation group according to claim 1, which is characterized in that the first lens object side surface is most Big effective radius is Y11, and the maximum effective radius on the 6th lens image side surface is Y62, meets following condition:
    Y11/Y62<0.90。
  11. 11. optical lenses for image formation group according to claim 1, which is characterized in that the 5th lens object side surface is in close It is concave surface at optical axis.
  12. 12. optical lenses for image formation group according to claim 1, which is characterized in that the 5th lens image side surface is in close It is convex surface at optical axis.
  13. 13. optical lenses for image formation group according to claim 1, which is characterized in that the second lens object side surface is in close It is convex surface at optical axis.
  14. 14. optical lenses for image formation group according to claim 1, which is characterized in that the 4th lens object side surface is in close It is concave surface at optical axis, and the 4th lens image side surface is convex surface at dipped beam axis.
  15. 15. optical lenses for image formation group according to claim 1, which is characterized in that the first lens object side surface and picture At least one of surface in side surface has an at least point of inflexion.
  16. 16. optical lenses for image formation group according to claim 1, which is characterized in that the focal length of the 5th lens is f5, should The focal length of 6th lens is f6, meets following condition:
    -0.85<f6/f5<2.0。
  17. 17. optical lenses for image formation group according to claim 1, which is characterized in that the optical lenses for image formation group it is saturating The abbe number of at least two lens is less than 30 in mirror.
  18. 18. optical lenses for image formation group according to claim 1, which is characterized in that extremely should the first lens object side surface 6th lens image side surface in the distance on optical axis be TD, the critical point on the 6th lens image side surface it is vertical between optical axis away from From for Yc62, meet following condition:
    1.0<TD/Yc62<4.0。
  19. 19. optical lenses for image formation group according to claim 1, which is characterized in that the song of the 6th lens object side surface Rate radius is R11, and the radius of curvature on the 6th lens image side surface is R12, meets following condition:
    0.50<(R11+R12)/(R11-R12)<2.80。
  20. 20. optical lenses for image formation group according to claim 1, which is characterized in that the song of the first lens object side surface Rate radius is R1, and the radius of curvature on the first lens image side surface is R2, meets following condition:
    (R1-R2)/(R1+R2)<0.50。
  21. 21. optical lenses for image formation group according to claim 1, which is characterized in that the 6th lens object side surface is in close It is convex surface at optical axis.
  22. 22. a kind of image-taking device, characterized by comprising:
    Optical lenses for image formation group as described in claim 1；And
    One electronics photosensitive element, wherein the electronics photosensitive element is set on the imaging surface of the optical lenses for image formation group.
  23. 23. a kind of electronic device, characterized by comprising:
    Image-taking device as claimed in claim 22.
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