CN105807409A - Photographic optical lens set, image capture device and electronic device - Google Patents
Photographic optical lens set, image capture device and electronic device Download PDFInfo
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- CN105807409A CN105807409A CN201410840370.6A CN201410840370A CN105807409A CN 105807409 A CN105807409 A CN 105807409A CN 201410840370 A CN201410840370 A CN 201410840370A CN 105807409 A CN105807409 A CN 105807409A
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Abstract
The invention discloses a photographic optical lens set, an image capture device and an electronic device. The photographic optical lens set comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens in sequence from an object side to an image side. The first lens has positive refractive power, and the object side surface thereof near an optic axis is a convex surface. The second lens has refractive power. The third lens has refractive power, and the object side surface and the image side surface thereof are aspheric surfaces. The fourth lens has refractive power, and the object side surface and the image side surface thereof are aspheric surfaces. The fifth lens has refractive power, and the object side surface and the image side surface thereof are aspheric surfaces. The sixth lens has refractive power, and the object side surface and the image side surface thereof are aspheric surfaces. The invention further discloses an image capture device with the photographic optical lens set and an electronic device with the image capture device. When a specific condition is satisfied, the spatial configuration of the lens can be controlled, and the telephoto capability can be improved.
Description
Technical field
The present invention relates to a kind of camera optical eyeglass group and image-taking device, and particularly to a kind of application miniaturization camera optical eyeglass group on the electronic device and image-taking device.
Background technology
In recent years, along with the rise of the electronic product with camera function, the demand of optical system day by day improves.The photo-sensitive cell of general optical system is nothing more than being photosensitive coupling element (ChargeCoupledDevice, or Complimentary Metal-Oxide semiconductor element (ComplementaryMetal-OxideSemiconductorSensor CCD), CMOSSensor) two kinds, and progressing greatly along with semiconductor process technique, the Pixel Dimensions making photo-sensitive cell reduces, optical system develops toward high pixel neighborhoods gradually, therefore the requirement of image quality is also increased day by day.
The many employings of optical system that tradition is equipped on electronic product four or five chip lens arrangements are main, but owing to the high standards such as smart mobile phone (SmartPhone) and tablet PC (TabletPC) move the prevailing of device, drive soaring rapidly on pixel and image quality of optical system, it is known that optical system will be unable to meet the camera chain of higher order.
The six chip optical systems though making further progress at present, but because the light collection ability of overall optical system cannot be concentrated on thing side by the configuration of the first lens refracting power therein, cause that optical system total length is long, cause overall volume excessive.
Summary of the invention
It is an object of the invention to provide a kind of camera optical eyeglass group, image-taking device and electronic installation, its first lens have positive refracting power, the light collection ability of overall camera optical eyeglass group can be concentrated on its thing side, so as to effectively controlling the volume of camera optical eyeglass group, meet the characteristic of miniaturization.
There is provided a kind of camera optical eyeglass group according to the present invention, thing side to image side sequentially comprise the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens.First lens have positive refracting power, and its thing side surface is convex surface in dipped beam axle place.Second lens have refracting power.3rd lens have refracting power, and its thing side surface and surface, image side are all aspheric surface.4th lens have refracting power, and its thing side surface and surface, image side are all aspheric surface.5th lens have refracting power, and its thing side surface and surface, image side are all aspheric surface.6th lens have refracting power, and its thing side surface and surface, image side are all aspheric surface.The lens in camera optical eyeglass group with refracting power are six, and described in have between the lens of refracting power without relative movement, the focal length of camera optical eyeglass group is f, to the 6th surface, lens image side, the distance on optical axis is TD to first lens thing side surface, 6th surface, lens image side is BL to imaging surface distance on optical axis, the maximum image height of camera optical eyeglass group is ImgH, and it meets following condition:
0.30<TD/f<0.90；
0<BL/f<0.25；And
2.0<f/ImgH<5.0。
More providing a kind of image-taking device according to the present invention, comprise camera optical eyeglass group as in the previous paragraph and sense electronics optical element, wherein sense electronics optical element is arranged at the imaging surface of camera optical eyeglass group.
Separately provide a kind of electronic installation according to the present invention, comprise image-taking device as in the previous paragraph.
Reoffer a kind of camera optical eyeglass group according to the present invention, thing side to image side sequentially comprise the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens.First lens have positive refracting power, and its thing side surface is convex surface in dipped beam axle place.Second lens have refracting power.3rd lens have refracting power, and its thing side surface and surface, image side are all aspheric surface.4th lens have refracting power, and its thing side surface and surface, image side are all aspheric surface.5th lens have refracting power, and its thing side surface and surface, image side are all aspheric surface.6th lens have refracting power, and its thing side surface and surface, image side are all aspheric surface.The lens in camera optical eyeglass group with refracting power are six, and between wantonly two adjacent lens with refracting power, there is a spacing distance, and described in have between the lens of refracting power without relative movement, camera optical eyeglass group also comprises an aperture, and without the lens with refracting power between this aperture and this first lens, the focal length of camera optical eyeglass group is f, to the 6th surface, lens image side, the distance on optical axis is TD to first lens thing side surface, the maximum image height of camera optical eyeglass group is ImgH, and it meets following condition:
0.30<TD/f<0.90；And
2.0<f/ImgH<5.0。
A kind of image-taking device is provided again according to the present invention, comprise camera optical eyeglass group as in the previous paragraph, prism and sense electronics optical element, wherein prism is arranged in the light path between object and camera optical eyeglass group, and sense electronics optical element is arranged at the imaging surface of camera optical eyeglass group.
Reoffer again a kind of camera optical eyeglass group according to the present invention, thing side to image side sequentially comprise the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens.First lens have positive refracting power, and its thing side surface is convex surface in dipped beam axle place.Second lens have negative refracting power.3rd lens have refracting power, and its thing side surface and surface, image side are all aspheric surface.4th lens have refracting power, and its thing side surface and surface, image side are all aspheric surface.5th lens have refracting power, and its thing side surface and surface, image side are all aspheric surface.6th lens have refracting power, and its thing side surface and surface, image side are all aspheric surface.The lens in camera optical eyeglass group with refracting power are six, and described in have between the lens of refracting power without relative movement, the focal length of this camera optical eyeglass group is f, to the 6th surface, lens image side, the distance on optical axis is TD to this first lens thing side surface, 6th surface, lens image side is BL to imaging surface distance on optical axis, and it meets following condition:
0.30<TD/f<0.85；And
0<BL/f<0.25。
When TD/f meets above-mentioned condition, can effectively control the space configuration of lens in camera optical eyeglass group, and promote the ability of vista shot (Telephoto).
When BL/f meets above-mentioned condition, the back focal length of camera optical eyeglass group can be shortened, overall volume can be avoided excessive, be beneficial to and be mounted in miniaturized electronic device.
When f/ImgH meets above-mentioned condition, the light beam in videography optical lens sheet group can be controlled so that it is focusing range concentrates on a certain specific region at a distance, to promote the acquisition ability of described region high-resolution image.
Accompanying drawing explanation
Fig. 1 is shown according to the schematic diagram of a kind of image-taking device of first embodiment of the invention；
Fig. 2 is sequentially the spherical aberration of first embodiment, astigmatism from left to right and distorts curve chart；
Fig. 3 is shown according to the schematic diagram of a kind of image-taking device of second embodiment of the invention；
Fig. 4 is sequentially the spherical aberration of the second embodiment, astigmatism from left to right and distorts curve chart；
Fig. 5 is shown according to the schematic diagram of a kind of image-taking device of third embodiment of the invention；
Fig. 6 is sequentially the spherical aberration of the 3rd embodiment, astigmatism from left to right and distorts curve chart；
Fig. 7 is shown according to the schematic diagram of a kind of image-taking device of fourth embodiment of the invention；
Fig. 8 is sequentially the spherical aberration of the 4th embodiment, astigmatism from left to right and distorts curve chart；
Fig. 9 is shown according to the schematic diagram of a kind of image-taking device of fifth embodiment of the invention；
Figure 10 is sequentially the spherical aberration of the 5th embodiment, astigmatism from left to right and distorts curve chart；
Figure 11 is shown according to the schematic diagram of a kind of image-taking device of sixth embodiment of the invention；
Figure 12 is sequentially the spherical aberration of sixth embodiment, astigmatism from left to right and distorts curve chart；
Figure 13 is shown according to the schematic diagram of a kind of image-taking device of seventh embodiment of the invention；
Figure 14 is sequentially the spherical aberration of the 7th embodiment, astigmatism from left to right and distorts curve chart；
Figure 15 is shown according to the schematic diagram of a kind of image-taking device of eighth embodiment of the invention；
Figure 16 is sequentially the spherical aberration of the 8th embodiment, astigmatism from left to right and distorts curve chart；
Figure 17 is shown according in Fig. 1 first embodiment the schematic diagram of parameter Dsr1 and Dsr2；
Figure 18 is shown according in Fig. 1 first embodiment camera optical eyeglass group and object and imaging surface thereof arrange the schematic diagram of relation；
Figure 19 is shown according in Fig. 1 first embodiment camera optical eyeglass group and prism, object and imaging surface another kind thereof arrange the schematic diagram of relation；
Figure 20 is shown according to the schematic diagram of a kind of electronic installation of ninth embodiment of the invention；
Figure 21 is shown according to the schematic diagram of a kind of electronic installation of tenth embodiment of the invention；And
Figure 22 is shown according to the schematic diagram of a kind of electronic installation of eleventh embodiment of the invention.
[symbol description]
Electronic installation: 10,20,30
Image-taking device: 11,21,31
First lens: 110,210,310,410,510,610,710,810
Thing side surface: 111,211,311,411,511,611,711,811
Surface, image side: 112,212,312,412,512,612,712,812
Second lens: 120,220,320,420,520,620,720,820
Thing side surface: 121,221,321,421,521,621,721,821
Surface, image side: 122,222,322,422,522,622,722,822
3rd lens: 130,230,330,430,530,630,730,830
Thing side surface: 131,231,331,431,531,631,731,831
Surface, image side: 132,232,332,432,532,632,732,832
4th lens: 140,240,340,440,540,640,740,840
Thing side surface: 141,241,341,441,541,641,741,841
Surface, image side: 142,242,342,442,542,642,742,842
5th lens: 150,250,350,450,550,650,750,850
Thing side surface: 151,251,351,451,551,651,751,851
Surface, image side: 152,252,352,452,552,652,752,852
6th lens: 160,260,360,460,560,660,760,860
Thing side surface: 161,261,361,461,561,661,761,861
Surface, image side: 162,262,362,462,562,662,762,762
Infrared ray filters filter element: 170,270,370,470,570,670,770,870
Imaging surface: 180,280,380,480,580,680,780,880
Sense electronics optical element: 190,290,390,490,590,690,790,890
O: object
L: camera optical eyeglass group
P: prism
F: the focal length of camera optical eyeglass group
Fno: the f-number of camera optical eyeglass group
HFOV: the half at maximum visual angle in camera optical eyeglass group
The abbe number of the V5: the five lens
The refractive index of the N1: the first lens
The refractive index of the N2: the second lens
The refractive index of the N3: the three lens
The refractive index of the N4: the four lens
The refractive index of the N5: the five lens
The refractive index of the N6: the six lens
The maximum in Nmax:N1, N2, N3, N4, N5 and N6
The radius of curvature of the R1: the first lens thing side surface
The radius of curvature of the R7: the four lens thing side surface
The radius of curvature of the R8: the four surface, lens image side
The radius of curvature of the R10: the five surface, lens image side
The radius of curvature of the R11: the six lens thing side surface
The radius of curvature of the R12: the six surface, lens image side
The focal length of the f1: the first lens
The focal length of the f2: the second lens
The focal length of the f6: the six lens
SD: aperture is the distance on optical axis to the 6th surface, lens image side
TD: the first lens thing side surface is the distance on optical axis to the 6th surface, lens image side
Each two adjacent lens summations of spacing distance on optical axis in Σ the AT: the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens
Dr6r9: the three surface, lens image side and the 5th lens thing side surface distance on optical axis
BL: the six surface, lens image side is to imaging surface distance on optical axis
Dsr1: the first lens thing side surface is to aperture spacing distance on optical axis
Dsr2: the first surface, lens image side is to aperture spacing distance on optical axis
SAG62: the six surface, lens image side intersection point on optical axis to the maximum effective radius position on the 6th surface, lens image side in the horizontal displacement distance of optical axis
CT6: the six lens thickness on optical axis
ImgH: the maximum image height of camera optical eyeglass group
EPD: the entrance pupil diameter of camera optical eyeglass group
TL: the first lens thing side surface is to imaging surface distance on optical axis
Detailed description of the invention
A kind of camera optical eyeglass group, the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens are sequentially comprised by thing side to image side, the lens wherein in camera optical eyeglass group with refracting power are six, and described in have between the lens of refracting power without relative movement.Camera optical eyeglass group can also comprise an aperture, and without the lens with refracting power between aperture and the first lens.
In first lens of camera optical eyeglass group, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens described in leading portion, between wantonly two adjacent lens with refracting power, can have a spacing distance；It is to say, camera optical eyeglass group has six single unbonded lens.Owing to the processing procedure relatively non-adhering lens of cemented lens are complicated, the curved surface of high accuracy need to be had especially, in order to reach high adaptation during two lens bondings at the adhesive surface of two lens, and in the process of bonding, it is likely to and causes because of off normal adaptation not good, the overall optical imagery quality of impact.Therefore, in camera optical eyeglass group of the present invention, between wantonly two adjacent lens with refracting power, there is a spacing distance, problem produced by cemented lens can be effectively improved.
First lens have positive refracting power, and its thing side surface is convex surface in dipped beam axle place.Whereby, the light collection ability of overall camera optical eyeglass group can be concentrated on its thing side, so as to effectively controlling the volume of camera optical eyeglass group, meet the characteristic of miniaturization.It addition, the first surface, lens image side can be convex surface in dipped beam axle place, and at least one concave surface can be comprised in off-axis place, contribute to the aberration of modified off-axis visual field.
Second lens can have negative refracting power, and its surface, image side can be concave surface in dipped beam axle place.So as to revise camera optical eyeglass group aberration to promote image quality.
3rd lens can have negative refracting power, and its surface, image side can be concave surface in dipped beam axle place.So as to revise camera optical eyeglass group aberration to promote image quality.
5th lens can have positive refracting power, and its thing side surface can be concave surface in dipped beam axle place, and its surface, image side can be convex surface in dipped beam axle place.Whereby, the astigmatism of camera optical eyeglass group it is effectively reduced.
6th lens can have negative refracting power, and its thing side surface can be concave surface in dipped beam axle place, and its surface, image side can be convex surface in dipped beam axle place, and wherein the 6th lens thing side surface can be concave surface in dipped beam axle place, and can comprise at least one convex surface in off-axis place.Whereby, the principal point (PrincipalPoint) of camera optical eyeglass group can be made away from imaging surface, be conducive to shortening its back focal length to maintain miniaturization, and can effectively suppress the angle that off-axis field rays is incident, make the response efficiency of sense electronics optical element promote.
In first lens, the second lens and the 3rd lens, at least two lens can have thing side surface and in dipped beam axle place be convex surface and surface, image side is concave surface in dipped beam axle place.Whereby, the astigmatism of camera optical eyeglass group can be revised.
It is concave surface, another surface in dipped beam axle place is convex surface in dipped beam axle place that 4th lens, the 5th lens and the 6th lens can all have a surface.Whereby, can balance camera optical eyeglass group refracting power and and then revise camera optical eyeglass group aberration.
The focal length of camera optical eyeglass group is f, and to the 6th surface, lens image side, the distance on optical axis is TD to the first lens thing side surface, and it meets following condition: 0.30 < TD/f < 0.90.Whereby, can effectively control the space configuration of lens, and promote the ability of vista shot.It is preferred that following condition can be met: 0.30 < TD/f < 0.85.More preferably, following condition can be met: 0.50 < TD/f < 0.85.
The focal length of camera optical eyeglass group is f, and the 6th surface, lens image side is BL to imaging surface distance on optical axis, and it meets following condition: 0 < BL/f < 0.25.Whereby, the back focal length of camera optical eyeglass group can be shortened, overall volume can be avoided excessive, be beneficial to and be mounted in miniaturized electronic device.
The focal length of camera optical eyeglass group is f, and the maximum image height of camera optical eyeglass group is ImgH, and it meets following condition: 2.0 < f/ImgH < 5.0.Whereby, the light beam in videography optical lens sheet group can be controlled so that it is focusing range concentrates on a certain specific region at a distance, to promote the acquisition ability of described region high-resolution image.It is preferred that following condition can be met: 2.35 < f/ImgH < 4.5.
The refractive index of the first lens is N1, the refractive index of the second lens is N2, the refractive index of the 3rd lens is N3, the refractive index of the 4th lens is N4, the refractive index of the 5th lens is N5, the refractive index of the 6th lens is N6, and wherein in N1, N2, N3, N4, N5 and N6, the maximum is Nmax, and it meets following condition: Nmax < 1.70.Whereby, the minimizing of aberration is contributed to.
The abbe number of the 5th lens is V5, and it meets following condition: V5 < 30.Whereby, the correction of camera optical eyeglass group aberration is contributed to.
Camera optical eyeglass group can also comprise an aperture, and without the lens with refracting power between aperture and the first lens.To the 6th surface, lens image side, the distance on optical axis is SD to aperture, and to the 6th surface, lens image side, the distance on optical axis is TD to the first lens thing side surface, and it meets following condition: 0.75 < SD/TD < 1.0.Whereby, camera optical eyeglass group is conducive to average out in telecentricity characteristic with Wide-angle characteristic.
6th surface, lens image side intersection point on optical axis is SAG62 to the maximum effective radius position on the 6th surface, lens image side in the horizontal displacement distance of optical axis, and the 6th lens thickness on optical axis is CT6, and it meets following condition: SAG62+CT6 < 0mm.Whereby, the shape of lens is conducive to manufacturing and molding.
The radius of curvature of the 5th surface, lens image side is R10, and the radius of curvature of the 6th lens thing side surface is R11, and it meets following condition: 1.0 < (R10+R11)/(R10-R11) < 8.0.Whereby, it is effectively reduced astigmatism.
The focal length of camera optical eyeglass group is f, and the focal length of the first lens is f1, and the focal length of the second lens is f2, and the focal length of the 6th lens is f6, and it meets following condition: 5.0 < | f/f1 |+| f/f2 |+| f/f6 |.Whereby, the configuration of camera optical eyeglass group refracting power, contribute to shortening total length, maintain its miniaturization.
The entrance pupil diameter of camera optical eyeglass group is EPD, and the maximum image height of camera optical eyeglass group is ImgH, and it meets following condition: 0.8 < EPD/ImgH < 2.0.Whereby, the light-inletting quantity of camera optical eyeglass group can be increased.
In camera optical eyeglass group, the half at maximum visual angle is HFOV, and it meets following condition: 7.5 degree < HFOV < 23.5 degree.Whereby, can have the suitable angle of visual field and capture scope, it is to avoid the generation of veiling glare.
The radius of curvature of the 4th lens thing side surface is R7, and the radius of curvature on the 4th surface, lens image side is R8, and it meets following condition :-0.3 < (R7-R8)/(R7+R8) < 0.6.Whereby, the correction of camera optical eyeglass group astigmatism is contributed to.
Aperture and first lens thing side surface spacing distance on optical axis are Dsr1, and aperture and this surface, the first lens image side spacing distance on optical axis are Dsr2, and it meets following condition: 1.40 < | Dsr1/Dsr2 |.Whereby, the ability of the first lens light collection can be promoted.
Image-taking device can also comprise a prism, is arranged in the light path between object and camera optical eyeglass group.Whereby, make the light path of incident illumination turn to, reduce the required height arranged of camera optical eyeglass group, more can promote the miniaturization of its image-taking device carried or electronic installation.
First lens thing side surface is TL to imaging surface distance on optical axis, and the maximum image height of camera optical eyeglass group is ImgH, and it meets following condition: 2.0 < TL/ImgH < 3.0.Whereby, can effectively shorten the total length of camera optical eyeglass group, maintain its miniaturization.
To the 6th surface, lens image side, the distance on optical axis is TD to first lens thing side surface, and the 3rd surface, lens image side and the 5th lens thing side surface distance on optical axis are Dr6r9, and it meets following condition: TD/Dr6r9 < 3.1.Whereby, can effectively maintain suitable total length, promote its miniaturization.
The radius of curvature of the 6th lens thing side surface is R11, and the radius of curvature on the 6th surface, lens image side is R12, and it meets following condition: (R11+R12)/(R11-R12) <-1.0.Whereby, the sensitivity of camera optical eyeglass group it is effectively reduced.
In first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens, each two adjacent lens summations of spacing distance on optical axis are Σ AT, to the 6th surface, lens image side, the distance on optical axis is TD to first lens thing side surface, and it meets following condition: 0.40 < Σ AT/TD.Whereby, can effectively shorten total length, maintain its miniaturization.
The focal length of camera optical eyeglass group is f, and the radius of curvature of the first lens thing side surface is R1, and the radius of curvature on the 6th surface, lens image side is R12, and it meets following condition: 4.0 < f/R1-f/R12 < 8.5.Whereby, be conducive to shortening its back focal length to maintain miniaturization.
In camera optical eyeglass group provided by the invention, the material of lens can be plastic cement or glass.When the material of lens is plastic cement, it is possible to effectively reduce production cost.The another material working as lens is glass, then can increase the degree of freedom of camera optical eyeglass group refracting power configuration.In addition, thing side surface and surface, image side in camera optical eyeglass group can be aspheric surface (ASP), aspheric surface can easily be fabricated to the shape beyond sphere, obtain more controlled variable, in order to cut down aberration, and then the number that reduction lens use, therefore can effectively reduce the total length of camera optical eyeglass group of the present invention.
Furthermore, in camera optical eyeglass group provided by the invention, if lens surface is convex surface and when not defining this convex surface position, then it represents that this lens surface is convex surface in dipped beam axle place；If lens surface is concave surface and when not defining this concave surface position, then it represents that this lens surface is concave surface in dipped beam axle place.In taking lens system provided by the invention, if lens have positive refracting power or negative refracting power or the focal length of lens, all refer to refracting power or the focal length at lens dipped beam axle place.
It addition, in camera optical eyeglass group of the present invention, at least one diaphragm can be arranged on demand, to reduce veiling glare, contribute to promoting image quality.
The imaging surface of the camera optical eyeglass group of the present invention, according to the difference of the sense electronics optical element of its correspondence, can be a plane or the curved surface having arbitrary curvature, particularly relate to concave surface towards toward thing side to curved surface.
In the camera optical eyeglass group of the present invention, aperture configuration can be preposition aperture or mid-aperture, and wherein preposition aperture implies that aperture is arranged between object and the first lens, and mid-aperture then represents that aperture is arranged between the first lens and imaging surface.If aperture is preposition aperture, the outgoing pupil (ExitPupil) that can make camera optical eyeglass group produces longer distance with imaging surface, make it have telecentricity (Telecentric) effect, and CCD or CMOS that can increase sense electronics optical element receives the efficiency of image；If mid-aperture, contribute to the angle of visual field of expansion system, make camera optical eyeglass group have the advantage of wide-angle lens.
The present invention also can many-side be applied in the electronic installations such as three-dimensional (3D) image capture, digital camera, mobile product, tablet PC, intelligent television, network monitoring device, somatic sensation television game machine, drive recorder, reversing developing unit and Wearable product.
The present invention provides a kind of image-taking device, comprises aforesaid camera optical eyeglass group and sense electronics optical element, and wherein sense electronics optical element is arranged at the imaging surface of camera optical eyeglass group.Be there is by the first lens the configuration of positive refracting power, the light collection ability of overall camera optical eyeglass group can be concentrated on its thing side, so as to effectively controlling the volume of camera optical eyeglass group, meet the characteristic of miniaturization.It is preferred that image-taking device can further include lens barrel (BarrelMember), supports device (HolderMember) or its combination.
The present invention provides a kind of electronic installation, comprises aforesaid image-taking device.Whereby, there is lifting image quality and effect.It is preferred that electronic installation can further include control unit (ControlUnit), display unit (Display), storage element (StorageUnit), temporary storage element (RAM) or its combination.
According to above-mentioned embodiment, specific embodiment set forth below also coordinates accompanying drawing to be described in detail.
<first embodiment>
Refer to Fig. 1 and Fig. 2, wherein Fig. 1 is shown according to the schematic diagram of a kind of image-taking device of first embodiment of the invention, and Fig. 2 is sequentially the spherical aberration of first embodiment, astigmatism from left to right and distorts curve chart.As shown in Figure 1, the image-taking device of first embodiment comprises camera optical eyeglass group (not another label) and sense electronics optical element 190.Camera optical eyeglass group is sequentially comprised aperture the 100, first lens the 110, second lens the 120, the 3rd lens the 130, the 4th lens the 140, the 5th lens the 150, the 6th lens 160 by thing side to image side, infrared ray filters filter element 170 and imaging surface 180, and sense electronics optical element 190 is arranged at the imaging surface 180 of camera optical eyeglass group, the lens wherein in camera optical eyeglass group with refracting power are six (110-160), and there is between wantonly two adjacent lens with refracting power a spacing distance, and described in have between the lens of refracting power without relative movement.
First lens 110 have positive refracting power, and are plastic cement material, and its thing side surface 111 is convex surface in dipped beam axle place, and its surface, image side 112 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the first surface, lens image side 112 comprises at least one concave surface in off-axis place.
Second lens 120 have negative refracting power, and are plastic cement material, and its thing side surface 121 is convex surface in dipped beam axle place, and its surface, image side 122 is concave surface in dipped beam axle place, and is all aspheric surface.
3rd lens 130 have negative refracting power, and are plastic cement material, and its thing side surface 131 is convex surface in dipped beam axle place, and its surface, image side 132 is concave surface in dipped beam axle place, and is all aspheric surface.
4th lens 140 have positive refracting power, and are plastic cement material, and its thing side surface 141 is concave surface in dipped beam axle place, and its surface, image side 142 is convex surface in dipped beam axle place, and is all aspheric surface.
5th lens 150 have positive refracting power, and are plastic cement material, and its thing side surface 151 is concave surface in dipped beam axle place, and its surface, image side 152 is convex surface in dipped beam axle place, and is all aspheric surface.
6th lens 160 have negative refracting power, and are plastic cement material, and its thing side surface 161 is concave surface in dipped beam axle place, and its surface, image side 162 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the 6th lens thing side surface 161 comprises at least one convex surface in off-axis place.
Infrared ray filters filter element 170 for glass material, and it is arranged between the 6th lens 160 and imaging surface 180 and does not affect the focal length of camera optical eyeglass group.
The aspheric fitting equation of above-mentioned each lens is expressed as follows:
Wherein:
X: in aspheric surface, distance optical axis is the point of Y, its be tangential on aspheric surface optical axis the relative distance of intersection point tangent plane；
Y: the vertical dimension of the point in aspheric curve and optical axis；
R: radius of curvature；
K: conical surface coefficient；And
Ai: the i-th rank asphericity coefficient.
In the camera optical eyeglass group of first embodiment, the focal length of camera optical eyeglass group is f, and the f-number (f-number) of camera optical eyeglass group is Fno, and in camera optical eyeglass group, the half at maximum visual angle is HFOV, and its numerical value is as follows: f=6.60mm；Fno=2.85；And HFOV=16.3 degree.
In the camera optical eyeglass group of first embodiment, the abbe number of the 5th lens 150 is V5, and it meets following condition: V5=21.4.
In the camera optical eyeglass group of first embodiment, the refractive index of the first lens 110 is N1, the refractive index of the second lens 120 is N2, the refractive index of the 3rd lens 130 is N3, the refractive index of the 4th lens 140 is N4, and the refractive index of the 5th lens 150 is N5, and the refractive index of the 6th lens 160 is N6, wherein in N1, N2, N3, N4, N5 and N6, the maximum is Nmax, and it meets following condition: Nmax=1.650.
In the camera optical eyeglass group of first embodiment, the radius of curvature of the 4th lens thing side surface 141 is R7, and the radius of curvature on the 4th surface, lens image side 142 is R8, and it meets following condition: (R7-R8)/(R7+R8)=0.03.
In the camera optical eyeglass group of first embodiment, the radius of curvature of the 5th surface, lens image side 152 is R10, the radius of curvature of the 6th lens thing side surface 161 is R11, the radius of curvature of the 6th surface, lens image side 162 is R12, and it meets following condition: (R10+R11)/(R10-R11)=1.62；And (R11+R12)/(R11-R12)=-1.38.
In the camera optical eyeglass group of first embodiment, the focal length of camera optical eyeglass group is f, and the radius of curvature of the first lens thing side surface 111 is R1, and the radius of curvature on the 6th surface, lens image side 162 is R12, and it meets following condition: f/R1-f/R12=5.63.
In the camera optical eyeglass group of first embodiment, the focal length of camera optical eyeglass group is f, and the focal length of the first lens 110 is f1, and the focal length of the second lens 120 is f2, the focal length of the 6th lens 160 is f6, and it meets following condition: | f/f1 |+| f/f2 |+| f/f6 |=7.30.
In the camera optical eyeglass group of first embodiment, to the 6th surface 162, lens image side, the distance on optical axis is SD to aperture 100, first lens thing side surface the 111 to the 6th surface 162, lens image side distance on optical axis is TD, and it meets following condition: SD/TD=0.87.
nullIn the camera optical eyeglass group of first embodiment，First lens 110 and the second lens 120 spacing distance on optical axis are T12、Second lens 120 and the 3rd lens 130 spacing distance on optical axis are T23、3rd lens 130 and the 4th lens 140 spacing distance on optical axis are T34、4th lens 140 and the 5th lens 150 spacing distance on optical axis are T45 and the 5th lens 150 and the 6th lens 160 spacing distance on optical axis is T56，In six pieces of lens, (110-160) each two adjacent lens summations of spacing distance on optical axis are Σ AT (i.e. Σ AT=T12+T23+T34+T45+T56)，First lens thing side surface the 111 to the 6th surface 162, lens image side distance on optical axis is TD，It meets following condition: Σ AT/TD=0.48.
In the camera optical eyeglass group of first embodiment, first lens thing side surface the 111 to the 6th surface 162, lens image side distance on optical axis is TD, 3rd surface, lens image side 132 and the 5th lens thing side surface 151 distance on optical axis are Dr6r9, and it meets following condition: TD/Dr6r9=2.49.
In the camera optical eyeglass group of first embodiment, the focal length of camera optical eyeglass group is f, and first lens thing side surface the 111 to the 6th surface 162, lens image side distance on optical axis is TD, and it meets following condition: TD/f=0.71.
In the camera optical eyeglass group of first embodiment, the focal length of camera optical eyeglass group is f, and the 6th surface, lens image side 162 to the imaging surface 180 distance on optical axis is BL, and it meets following condition: BL/f=0.10.
Please coordinate with reference to Figure 17, be shown according in Fig. 1 first embodiment the schematic diagram of parameter Dsr1 and Dsr2.As shown in Figure 17, aperture 100 and the first lens thing side surface 111 spacing distance on optical axis are Dsr1, and aperture 100 and the first surface 112, the lens image side spacing distance on optical axis is Dsr2, and it meets following condition: | Dsr1/Dsr2 |=2.29.
In the camera optical eyeglass group of first embodiment, 6th surface 162, lens image side intersection point on optical axis is SAG62 to the maximum effective radius position on the 6th surface, lens image side 162 in the horizontal displacement distance of optical axis, 6th lens 160 thickness on optical axis is CT6, and it meets following condition: SAG62+CT6=-0.19mm.
In the camera optical eyeglass group of first embodiment, the focal length of camera optical eyeglass group is f, the maximum image height of camera optical eyeglass group is ImgH (i.e. the half of the effective sensing region diagonal line length of sense electronics optical element 190), and it meets following condition: f/ImgH=3.30.
In the camera optical eyeglass group of first embodiment, the entrance pupil diameter of camera optical eyeglass group is EPD, and the maximum image height of camera optical eyeglass group is ImgH, and it meets following condition: EPD/ImgH=1.16.
In the camera optical eyeglass group of first embodiment, first lens thing side surface 111 to the imaging surface 180 distance on optical axis is TL, and the maximum image height of camera optical eyeglass group is ImgH, and it meets following condition: TL/ImgH=2.67.
Coordinate again with reference to lower list one and table two.
Table one is the structured data that Fig. 1 first embodiment is detailed, and wherein the unit of radius of curvature, thickness and focal length is mm, and surface 0-16 sequentially represents by the surface of thing side to image side.Table two is the aspherical surface data in first embodiment, and wherein, the conical surface coefficient in k table aspheric curve equation, A4-A14 then represents 4-14 rank, each surface asphericity coefficient.Additionally, following embodiment form is schematic diagram and the aberration curve figure of corresponding each embodiment, in form, the definition of data is all identical with the definition of the table one of first embodiment and table two, is not added with at this repeating.
Please coordinate with reference to Figure 18, be shown according in Fig. 1 first embodiment camera optical eyeglass group L and object O and imaging surface 180 arranges the schematic diagram of relation.As shown in Figure 18, incident illumination can be incident in camera optical eyeglass group L from object O straight line, and in its imaging surface 180 imaging.
Refer again to Figure 19, be shown according in Fig. 1 first embodiment camera optical eyeglass group L, prism P and object O and imaging surface 180 another kind thereof arrange the schematic diagram of relation.It appears from figure 19 that image-taking device can also comprise a prism P, it is arranged in the light path between object O and camera optical eyeglass group L.Through the setting of prism P, the light path of incident illumination can be made to turn to, reduce the required height arranged of camera optical eyeglass group, more can promote the miniaturization of its image-taking device carried or electronic installation.
Following examples all can configure by above-mentioned Figure 18 or Figure 19, therefore separately do not add and repeat.
<the second embodiment>
Refer to Fig. 3 and Fig. 4, wherein Fig. 3 is shown according to the schematic diagram of a kind of image-taking device of second embodiment of the invention, and Fig. 4 is sequentially the spherical aberration of the second embodiment, astigmatism from left to right and distorts curve chart.From the figure 3, it may be seen that the image-taking device of the second embodiment comprises camera optical eyeglass group (not another label) and sense electronics optical element 290.Camera optical eyeglass group is sequentially comprised aperture the 200, first lens the 210, second lens the 220, the 3rd lens the 230, the 4th lens the 240, the 5th lens the 250, the 6th lens 260 by thing side to image side, infrared ray filters filter element 270 and imaging surface 280, and sense electronics optical element 290 is arranged at the imaging surface 280 of camera optical eyeglass group, the lens wherein in camera optical eyeglass group with refracting power are six (210-260), and there is between wantonly two adjacent lens with refracting power a spacing distance, and described in have between the lens of refracting power without relative movement.
First lens 210 have positive refracting power, and are plastic cement material, and its thing side surface 211 is convex surface in dipped beam axle place, and its surface, image side 212 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the first surface, lens image side 212 comprises at least one concave surface in off-axis place.
Second lens 220 have negative refracting power, and are plastic cement material, and its thing side surface 221 is convex surface in dipped beam axle place, and its surface, image side 222 is concave surface in dipped beam axle place, and is all aspheric surface.
3rd lens 230 have negative refracting power, and are plastic cement material, and its thing side surface 231 is convex surface in dipped beam axle place, and its surface, image side 232 is concave surface in dipped beam axle place, and is all aspheric surface.
4th lens 240 have negative refracting power, and are plastic cement material, and its thing side surface 241 is convex surface in dipped beam axle place, and its surface, image side 242 is concave surface in dipped beam axle place, and is all aspheric surface.
5th lens 250 have positive refracting power, and are plastic cement material, and its thing side surface 251 is concave surface in dipped beam axle place, and its surface, image side 252 is convex surface in dipped beam axle place, and is all aspheric surface.
6th lens 260 have negative refracting power, and are plastic cement material, and its thing side surface 261 is concave surface in dipped beam axle place, and its surface, image side 262 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the 6th lens thing side surface 261 comprises at least one convex surface in off-axis place.
Infrared ray filters filter element 270 for glass material, and it is arranged between the 6th lens 260 and imaging surface 280 and does not affect the focal length of camera optical eyeglass group.
Coordinate again with reference to lower list three and table four.
In second embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, the definition of following table parameter is all identical with first embodiment, not in this to go forth.
Cooperation table three and table four can extrapolate following data:
<the 3rd embodiment>
Refer to Fig. 5 and Fig. 6, wherein Fig. 5 is shown according to the schematic diagram of a kind of image-taking device of third embodiment of the invention, and Fig. 6 is sequentially the spherical aberration of the 3rd embodiment, astigmatism from left to right and distorts curve chart.As shown in Figure 5, the image-taking device of the 3rd embodiment comprises camera optical eyeglass group (not another label) and sense electronics optical element 390.Camera optical eyeglass group is sequentially comprised aperture the 300, first lens the 310, second lens the 320, the 3rd lens the 330, the 4th lens the 340, the 5th lens the 350, the 6th lens 360 by thing side to image side, infrared ray filters filter element 370 and imaging surface 380, and sense electronics optical element 390 is arranged at the imaging surface 380 of camera optical eyeglass group, the lens wherein in camera optical eyeglass group with refracting power are six (310-360), and there is between wantonly two adjacent lens with refracting power a spacing distance, and described in have between the lens of refracting power without relative movement.
First lens 310 have positive refracting power, and are plastic cement material, and its thing side surface 311 is convex surface in dipped beam axle place, and its surface, image side 312 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the first surface, lens image side 312 comprises at least one concave surface in off-axis place.
Second lens 320 have negative refracting power, and are plastic cement material, and its thing side surface 321 is concave surface in dipped beam axle place, and its surface, image side 322 is concave surface in dipped beam axle place, and is all aspheric surface.
3rd lens 330 have negative refracting power, and are plastic cement material, and its thing side surface 331 is concave surface in dipped beam axle place, and its surface, image side 332 is concave surface in dipped beam axle place, and is all aspheric surface.
4th lens 340 have negative refracting power, and are plastic cement material, and its thing side surface 341 is convex surface in dipped beam axle place, and its surface, image side 342 is concave surface in dipped beam axle place, and is all aspheric surface.
5th lens 350 have positive refracting power, and are plastic cement material, and its thing side surface 351 is concave surface in dipped beam axle place, and its surface, image side 352 is convex surface in dipped beam axle place, and is all aspheric surface.
6th lens 360 have negative refracting power, and are plastic cement material, and its thing side surface 361 is concave surface in dipped beam axle place, and its surface, image side 362 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the 6th lens thing side surface 361 comprises at least one convex surface in off-axis place.
Infrared ray filters filter element 370 for glass material, and it is arranged between the 6th lens 360 and imaging surface 380 and does not affect the focal length of camera optical eyeglass group.
Coordinate again with reference to lower list five and table six.
In 3rd embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, the definition of following table parameter is all identical with first embodiment, not in this to go forth.
Cooperation table five and table six can extrapolate following data:
<the 4th embodiment>
Refer to Fig. 7 and Fig. 8, wherein Fig. 7 is shown according to the schematic diagram of a kind of image-taking device of fourth embodiment of the invention, and Fig. 8 is sequentially the spherical aberration of the 4th embodiment, astigmatism from left to right and distorts curve chart.As shown in Figure 7, the image-taking device of the 4th embodiment comprises camera optical eyeglass group (not another label) and sense electronics optical element 490.Camera optical eyeglass group is sequentially comprised aperture the 400, first lens the 410, second lens the 420, the 3rd lens the 430, the 4th lens the 440, the 5th lens the 450, the 6th lens 460 by thing side to image side, infrared ray filters filter element 470 and imaging surface 480, and sense electronics optical element 490 is arranged at the imaging surface 480 of camera optical eyeglass group, the lens wherein in camera optical eyeglass group with refracting power are six (410-460), and there is between wantonly two adjacent lens with refracting power a spacing distance, and described in have between the lens of refracting power without relative movement.
First lens 410 have positive refracting power, and are plastic cement material, and its thing side surface 411 is convex surface in dipped beam axle place, and its surface, image side 412 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the first surface, lens image side 412 comprises at least one concave surface in off-axis place.
Second lens 420 have negative refracting power, and are plastic cement material, and its thing side surface 421 is convex surface in dipped beam axle place, and its surface, image side 422 is concave surface in dipped beam axle place, and is all aspheric surface.
3rd lens 430 have negative refracting power, and are plastic cement material, and its thing side surface 431 is concave surface in dipped beam axle place, and its surface, image side 432 is concave surface in dipped beam axle place, and is all aspheric surface.
4th lens 440 have positive refracting power, and are plastic cement material, and its thing side surface 441 is concave surface in dipped beam axle place, and its surface, image side 442 is convex surface in dipped beam axle place, and is all aspheric surface.
5th lens 450 have negative refracting power, and are plastic cement material, and its thing side surface 451 is concave surface in dipped beam axle place, and its surface, image side 452 is convex surface in dipped beam axle place, and is all aspheric surface.
6th lens 460 have negative refracting power, and are plastic cement material, and its thing side surface 461 is concave surface in dipped beam axle place, and its surface, image side 462 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the 6th lens thing side surface 461 comprises at least one convex surface in off-axis place.
Infrared ray filters filter element 470 for glass material, and it is arranged between the 6th lens 460 and imaging surface 480 and does not affect the focal length of camera optical eyeglass group.
Coordinate again with reference to lower list seven and table eight.
In 4th embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, the definition of following table parameter is all identical with first embodiment, not in this to go forth.
Cooperation table seven and table eight can extrapolate following data:
<the 5th embodiment>
Refer to Fig. 9 and Figure 10, wherein Fig. 9 is shown according to the schematic diagram of a kind of image-taking device of fifth embodiment of the invention, and Figure 10 is sequentially the spherical aberration of the 5th embodiment, astigmatism from left to right and distorts curve chart.As shown in Figure 9, the image-taking device of the 5th embodiment comprises camera optical eyeglass group (not another label) and sense electronics optical element 590.Camera optical eyeglass group is sequentially comprised aperture the 500, first lens the 510, second lens the 520, the 3rd lens the 530, the 4th lens the 540, the 5th lens the 550, the 6th lens 560 by thing side to image side, infrared ray filters filter element 570 and imaging surface 580, and sense electronics optical element 590 is arranged at the imaging surface 580 of camera optical eyeglass group, the lens wherein in camera optical eyeglass group with refracting power are six (510-560), and there is between wantonly two adjacent lens with refracting power a spacing distance, and described in have between the lens of refracting power without relative movement.
First lens 510 have positive refracting power, and are plastic cement material, and its thing side surface 511 is convex surface in dipped beam axle place, and its surface, image side 512 is concave surface in dipped beam axle place, and is all aspheric surface.
Second lens 520 have negative refracting power, and are plastic cement material, and its thing side surface 521 is convex surface in dipped beam axle place, and its surface, image side 522 is concave surface in dipped beam axle place, and is all aspheric surface.
3rd lens 530 have positive refracting power, and are plastic cement material, and its thing side surface 531 is convex surface in dipped beam axle place, and its surface, image side 532 is concave surface in dipped beam axle place, and is all aspheric surface.
4th lens 540 have positive refracting power, and are plastic cement material, and its thing side surface 541 is concave surface in dipped beam axle place, and its surface, image side 542 is convex surface in dipped beam axle place, and is all aspheric surface.
5th lens 550 have positive refracting power, and are plastic cement material, and its thing side surface 551 is concave surface in dipped beam axle place, and its surface, image side 552 is convex surface in dipped beam axle place, and is all aspheric surface.
6th lens 560 have negative refracting power, and are plastic cement material, and its thing side surface 561 is concave surface in dipped beam axle place, and its surface, image side 562 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the 6th lens thing side surface 561 comprises at least one convex surface in off-axis place.
Infrared ray filters filter element 570 for glass material, and it is arranged between the 6th lens 560 and imaging surface 580 and does not affect the focal length of camera optical eyeglass group.
Coordinate again with reference to lower list nine and table ten.
In 5th embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, the definition of following table parameter is all identical with first embodiment, not in this to go forth.
Cooperation table nine and table ten can extrapolate following data:
<sixth embodiment>
Refer to Figure 11 and Figure 12, wherein Figure 11 is shown according to the schematic diagram of a kind of image-taking device of sixth embodiment of the invention, and Figure 12 is sequentially the spherical aberration of sixth embodiment, astigmatism from left to right and distorts curve chart.As shown in Figure 11, the image-taking device of sixth embodiment comprises camera optical eyeglass group (not another label) and sense electronics optical element 690.Camera optical eyeglass group is sequentially comprised aperture the 600, first lens the 610, second lens the 620, the 3rd lens the 630, the 4th lens the 640, the 5th lens the 650, the 6th lens 660 by thing side to image side, infrared ray filters filter element 670 and imaging surface 680, and sense electronics optical element 690 is arranged at the imaging surface 680 of camera optical eyeglass group, the lens wherein in camera optical eyeglass group with refracting power are six (610-660), and there is between wantonly two adjacent lens with refracting power a spacing distance, and described in have between the lens of refracting power without relative movement.
First lens 610 have positive refracting power, and are plastic cement material, and its thing side surface 611 is convex surface in dipped beam axle place, and its surface, image side 612 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the first surface, lens image side 612 comprises at least one concave surface in off-axis place.
Second lens 620 have negative refracting power, and are plastic cement material, and its thing side surface 621 is convex surface in dipped beam axle place, and its surface, image side 622 is concave surface in dipped beam axle place, and is all aspheric surface.
3rd lens 630 have negative refracting power, and are plastic cement material, and its thing side surface 631 is convex surface in dipped beam axle place, and its surface, image side 632 is concave surface in dipped beam axle place, and is all aspheric surface.
4th lens 640 have negative refracting power, and are plastic cement material, and its thing side surface 641 is convex surface in dipped beam axle place, and its surface, image side 642 is concave surface in dipped beam axle place, and is all aspheric surface.
5th lens 650 have positive refracting power, and are plastic cement material, and its thing side surface 651 is convex surface in dipped beam axle place, and its surface, image side 652 is convex surface in dipped beam axle place, and is all aspheric surface.
6th lens 660 have negative refracting power, and are plastic cement material, and its thing side surface 661 is concave surface in dipped beam axle place, and its surface, image side 662 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the 6th lens thing side surface 661 comprises at least one convex surface in off-axis place.
Infrared ray filters filter element 670 for glass material, and it is arranged between the 6th lens 660 and imaging surface 680 and does not affect the focal length of camera optical eyeglass group.
Coordinate again with reference to lower list 11 and table 12.
In sixth embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, the definition of following table parameter is all identical with first embodiment, not in this to go forth.
Cooperation table 11 and table 12 can extrapolate following data:
<the 7th embodiment>
Refer to Figure 13 and Figure 14, wherein Figure 13 is shown according to the schematic diagram of a kind of image-taking device of seventh embodiment of the invention, and Figure 14 is sequentially the spherical aberration of the 7th embodiment, astigmatism from left to right and distorts curve chart.As shown in Figure 13, the image-taking device of the 7th embodiment comprises camera optical eyeglass group (not another label) and sense electronics optical element 790.Camera optical eyeglass group is sequentially comprised aperture the 700, first lens the 710, second lens the 720, the 3rd lens the 730, the 4th lens the 740, the 5th lens the 750, the 6th lens 760 by thing side to image side, infrared ray filters filter element 770 and imaging surface 780, and sense electronics optical element 790 is arranged at the imaging surface 780 of camera optical eyeglass group, the lens wherein in camera optical eyeglass group with refracting power are six (710-760), and there is between wantonly two adjacent lens with refracting power a spacing distance, and described in have between the lens of refracting power without relative movement.
First lens 710 have positive refracting power, and are glass material, and its thing side surface 711 is convex surface in dipped beam axle place, and its surface, image side 712 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the first surface, lens image side 712 comprises at least one concave surface in off-axis place.
Second lens 720 have negative refracting power, and are plastic cement material, and its thing side surface 721 is convex surface in dipped beam axle place, and its surface, image side 722 is concave surface in dipped beam axle place, and is all aspheric surface.
3rd lens 730 have negative refracting power, and are plastic cement material, and its thing side surface 731 is concave surface in dipped beam axle place, and its surface, image side 732 is concave surface in dipped beam axle place, and is all aspheric surface.
4th lens 740 have positive refracting power, and are plastic cement material, and its thing side surface 741 is convex surface in dipped beam axle place, and its surface, image side 742 is convex surface in dipped beam axle place, and is all aspheric surface.
5th lens 750 have positive refracting power, and are plastic cement material, and its thing side surface 751 is concave surface in dipped beam axle place, and its surface, image side 752 is convex surface in dipped beam axle place, and is all aspheric surface.
6th lens 760 have negative refracting power, and are plastic cement material, and its thing side surface 761 is concave surface in dipped beam axle place, and its surface, image side 762 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the 6th lens thing side surface 761 comprises at least one convex surface in off-axis place.
Infrared ray filters filter element 770 for glass material, and it is arranged between the 6th lens 760 and imaging surface 780 and does not affect the focal length of camera optical eyeglass group.
Coordinate again with reference to lower list 13 and table 14.
In 7th embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, the definition of following table parameter is all identical with first embodiment, not in this to go forth.
Cooperation table 13 and table 14 can extrapolate following data:
<the 8th embodiment>
Refer to Figure 15 and Figure 16, wherein Figure 15 is shown according to the schematic diagram of a kind of image-taking device of eighth embodiment of the invention, and Figure 16 is sequentially the spherical aberration of the 8th embodiment, astigmatism from left to right and distorts curve chart.As shown in Figure 15, the image-taking device of the 8th embodiment comprises camera optical eyeglass group (not another label) and sense electronics optical element 890.Camera optical eyeglass group is sequentially comprised the first lens 810 by thing side to image side, aperture the 800, second lens the 820, the 3rd lens the 830, the 4th lens the 840, the 5th lens the 850, the 6th lens 860, infrared ray filter filter element 870 and imaging surface 880, and sense electronics optical element 890 is arranged at the imaging surface 880 of camera optical eyeglass group, the lens wherein in camera optical eyeglass group with refracting power are six (810-860), and there is between wantonly two adjacent lens with refracting power a spacing distance, and described in have between the lens of refracting power without relative movement.
First lens 810 have positive refracting power, and are plastic cement material, and its thing side surface 811 is convex surface in dipped beam axle place, and its surface, image side 812 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the first surface, lens image side 812 comprises at least one concave surface in off-axis place.
Second lens 820 have negative refracting power, and are plastic cement material, and its thing side surface 821 is convex surface in dipped beam axle place, and its surface, image side 822 is concave surface in dipped beam axle place, and is all aspheric surface.
3rd lens 830 have negative refracting power, and are plastic cement material, and its thing side surface 831 is convex surface in dipped beam axle place, and its surface, image side 832 is concave surface in dipped beam axle place, and is all aspheric surface.
4th lens 840 have positive refracting power, and are plastic cement material, and its thing side surface 841 is concave surface in dipped beam axle place, and its surface, image side 842 is convex surface in dipped beam axle place, and is all aspheric surface.
5th lens 850 have positive refracting power, and are plastic cement material, and its thing side surface 851 is concave surface in dipped beam axle place, and its surface, image side 852 is convex surface in dipped beam axle place, and is all aspheric surface.
6th lens 860 have negative refracting power, and are plastic cement material, and its thing side surface 861 is concave surface in dipped beam axle place, and its surface, image side 862 is convex surface in dipped beam axle place, and is all aspheric surface.It addition, the 6th lens thing side surface 861 comprises at least one convex surface in off-axis place.
Infrared ray filters filter element 870 for glass material, and it is arranged between the 6th lens 860 and imaging surface 880 and does not affect the focal length of camera optical eyeglass group.
Coordinate again with reference to lower list 15 and table 16.
In 8th embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, the definition of following table parameter is all identical with first embodiment, not in this to go forth.
Cooperation table 15 and table 16 can extrapolate following data:
<the 9th embodiment>
Refer to Figure 20, be the schematic diagram of a kind of electronic installation 10 being shown according to ninth embodiment of the invention.The electronic installation 10 of the 9th embodiment is a smart mobile phone, electronic installation 10 comprises image-taking device 11, image-taking device 11 comprises the camera optical eyeglass group (figure does not disclose) according to the present invention and sense electronics optical element (figure does not disclose), and wherein sense electronics optical element is arranged at the imaging surface of camera optical eyeglass group.
<the tenth embodiment>
Refer to Figure 21, be the schematic diagram of a kind of electronic installation 20 being shown according to tenth embodiment of the invention.The electronic installation 20 of the tenth embodiment is a tablet PC, electronic installation 20 comprises image-taking device 21, image-taking device 21 comprises the camera optical eyeglass group (figure does not disclose) according to the present invention and sense electronics optical element (figure does not disclose), and wherein sense electronics optical element is arranged at the imaging surface of camera optical eyeglass group.
<the 11st embodiment>
Refer to Figure 22, be the schematic diagram of a kind of electronic installation 30 being shown according to eleventh embodiment of the invention.The electronic installation 30 of the 11st embodiment is a head mounted display (Head-mounteddisplay, HMD), electronic installation 30 comprises image-taking device 31, image-taking device 31 comprises the camera optical eyeglass group (figure does not disclose) according to the present invention and sense electronics optical element (figure does not disclose), and wherein sense electronics optical element is arranged at the imaging surface of camera optical eyeglass group.
Although the present invention is disclosed above with embodiment; so it is not limited to the present invention, any is familiar with this those skilled in the art, without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations, therefore protection scope of the present invention ought be as the criterion depending on the scope that appending claims defines.
Claims (35)
1. a camera optical eyeglass group, it is characterised in that sequentially comprised to image side by thing side:
One first lens, have positive refracting power, and its thing side surface is convex surface in dipped beam axle place；
One second lens, have refracting power；
One the 3rd lens, have refracting power, and its thing side surface and surface, image side are all aspheric surface；
One the 4th lens, have refracting power, and its thing side surface and surface, image side are all aspheric surface；
One the 5th lens, have refracting power, and its thing side surface and surface, image side are all aspheric surface；And
One the 6th lens, have refracting power, and its thing side surface and surface, image side are all aspheric surface；
Wherein, the lens in this camera optical eyeglass group with refracting power are six, and described in have between the lens of refracting power without relative movement, the focal length of this camera optical eyeglass group is f, to the 6th surface, lens image side, the distance on optical axis is TD to this first lens thing side surface, 6th surface, lens image side is BL to imaging surface distance on optical axis, and the maximum image height of this camera optical eyeglass group is ImgH, and it meets following condition:
0.30<TD/f<0.90；
0<BL/f<0.25；And
2.0<f/ImgH<5.0。
2. camera optical eyeglass group according to claim 1, it is characterised in that the 6th lens have negative refracting power.
3. camera optical eyeglass group according to claim 1, it is characterized in that, these second lens have negative refracting power, and its surface, image side is concave surface in dipped beam axle place, the refractive index of these the first lens is N1, the refractive index of these the second lens is N2, and the refractive index of the 3rd lens is N3, and the refractive index of the 4th lens is N4, the refractive index of the 5th lens is N5, the refractive index of the 6th lens is N6, and wherein in N1, N2, N3, N4, N5 and N6, the maximum is Nmax, and it meets following condition:
Nmax<1.70。
4. camera optical eyeglass group according to claim 1, it is characterised in that the focal length of this camera optical eyeglass group is f, and the maximum image height of this camera optical eyeglass group is ImgH, and it meets following condition:
2.35<f/ImgH<4.5。
5. camera optical eyeglass group according to claim 1, it is characterised in that the 3rd surface, lens image side is concave surface in dipped beam axle place.
6. camera optical eyeglass group according to claim 1, it is characterised in that the abbe number of the 5th lens is V5, and it meets following condition:
V5<30。
7. camera optical eyeglass group according to claim 1, it is characterised in that also comprise:
One aperture, wherein to the 6th surface, lens image side, the distance on optical axis is SD to this aperture, and to the 6th surface, lens image side, the distance on optical axis is TD to this first lens thing side surface, and it meets following condition:
0.75<SD/TD<1.0。
8. camera optical eyeglass group according to claim 1, it is characterized in that, 6th surface, lens image side intersection point on optical axis is SAG62 to the maximum effective radius position on the 6th surface, lens image side in the horizontal displacement distance of optical axis, 6th lens thickness on optical axis is CT6, and it meets following condition:
SAG62+CT6<0mm。
9. camera optical eyeglass group according to claim 1, it is characterised in that the radius of curvature on the 5th surface, lens image side is R10, and the radius of curvature of the 6th lens thing side surface is R11, and it meets following condition:
1.0<(R10+R11)/(R10-R11)<8.0。
10. camera optical eyeglass group according to claim 1, it is characterised in that the focal length of this camera optical eyeglass group is f, and the focal length of these the first lens is f1, and the focal length of these the second lens is f2, and the focal length of the 6th lens is f6, and it meets following condition:
5.0<|f/f1|+|f/f2|+|f/f6|。
11. camera optical eyeglass group according to claim 1, it is characterised in that the 6th lens thing side surface is concave surface in dipped beam axle place, and comprises at least one convex surface in off-axis place.
12. an image-taking device, it is characterised in that comprise:
Camera optical eyeglass group as claimed in claim 1；And
One sense electronics optical element, it is arranged at an imaging surface of this camera optical eyeglass group.
13. an electronic installation, it is characterised in that comprise:
Image-taking device as claimed in claim 12.
14. a camera optical eyeglass group, it is characterised in that sequentially comprised to image side by thing side:
One first lens, have positive refracting power, and its thing side surface is convex surface in dipped beam axle place；
One second lens, have refracting power；
One the 3rd lens, have refracting power, and its thing side surface and surface, image side are all aspheric surface；
One the 4th lens, have refracting power, and its thing side surface and surface, image side are all aspheric surface；
One the 5th lens, have refracting power, and its thing side surface and surface, image side are all aspheric surface；And
One the 6th lens, have refracting power, and its thing side surface and surface, image side are all aspheric surface；
Wherein, the lens in this camera optical eyeglass group with refracting power are six, and between wantonly two adjacent lens with refracting power, there is a spacing distance, and described in have between the lens of refracting power without relative movement, this camera optical eyeglass group also comprises an aperture, and without the lens with refracting power between this aperture and this first lens, the focal length of this camera optical eyeglass group is f, to the 6th surface, lens image side, the distance on optical axis is TD to this first lens thing side surface, the maximum image height of this camera optical eyeglass group is ImgH, and it meets following condition:
0.30<TD/f<0.90；And
2.0<f/ImgH<5.0。
15. camera optical eyeglass group according to claim 14, it is characterised in that these second lens have negative refracting power.
16. camera optical eyeglass group according to claim 14, it is characterised in that the 5th lens have positive refracting power, and the 6th lens have negative refracting power.
17. camera optical eyeglass group according to claim 14, it is characterized in that, the refractive index of these the first lens is N1, the refractive index of these the second lens is N2, and the refractive index of the 3rd lens is N3, and the refractive index of the 4th lens is N4, the refractive index of the 5th lens is N5, the refractive index of the 6th lens is N6, and wherein in N1, N2, N3, N4, N5 and N6, the maximum is Nmax, and it meets following condition:
Nmax<1.70。
18. camera optical eyeglass group according to claim 14, it is characterised in that the focal length of this camera optical eyeglass group is f, to the 6th surface, lens image side, the distance on optical axis is TD to this first lens thing side surface, and it meets following condition:
0.50<TD/f<0.85。
19. camera optical eyeglass group according to claim 14, it is characterised in that the entrance pupil diameter of this camera optical eyeglass group is EPD, the maximum image height of this camera optical eyeglass group is ImgH, and it meets following condition:
0.8<EPD/ImgH<2.0。
20. camera optical eyeglass group according to claim 14, it is characterised in that in this camera optical eyeglass group, the half at maximum visual angle is HFOV, and it meets following condition:
7.5 degree < HFOV < 23.5 degree.
21. camera optical eyeglass group according to claim 14, it is characterised in that in these first lens, these second lens and the 3rd lens, at least two lens have thing side surface and in dipped beam axle place are convex surface and surface, image side is concave surface in dipped beam axle place.
22. camera optical eyeglass group according to claim 14, it is characterised in that the radius of curvature of the 4th lens thing side surface is R7, the radius of curvature on the 4th surface, lens image side is R8, and it meets following condition:
-0.3<(R7-R8)/(R7+R8)<0.6。
23. camera optical eyeglass group according to claim 14, it is characterized in that, this aperture and this first lens thing side surface spacing distance on optical axis are Dsr1, and this aperture and this surface, the first lens image side spacing distance on optical axis are Dsr2, and it meets following condition:
1.40<|Dsr1/Dsr2|。
24. an image-taking device, it is characterised in that comprise:
Camera optical eyeglass group as claimed in claim 14；
One prism, is arranged in the light path between an object and this camera optical eyeglass group；And
One sense electronics optical element, it is arranged at an imaging surface of this camera optical eyeglass group.
25. a camera optical eyeglass group, it is characterised in that sequentially comprised to image side by thing side:
One first lens, have positive refracting power, and its thing side surface is convex surface in dipped beam axle place；
One second lens, have negative refracting power；
One the 3rd lens, have refracting power, and its thing side surface and surface, image side are all aspheric surface；
One the 4th lens, have refracting power, and its thing side surface and surface, image side are all aspheric surface；
One the 5th lens, have refracting power, and its thing side surface and surface, image side are all aspheric surface；And
One the 6th lens, have refracting power, and its thing side surface and surface, image side are all aspheric surface；
Wherein, the lens in this camera optical eyeglass group with refracting power are six, and described in have between the lens of refracting power without relative movement, the focal length of this camera optical eyeglass group is f, to the 6th surface, lens image side, the distance on optical axis is TD to this first lens thing side surface, 6th surface, lens image side is BL to imaging surface distance on optical axis, and it meets following condition:
0.30<TD/f<0.85；And
0<BL/f<0.25。
26. camera optical eyeglass group according to claim 25, it is characterised in that the 5th surface, lens image side is convex surface in dipped beam axle place, the 6th lens thing side surface is concave surface in dipped beam axle place.
27. camera optical eyeglass group according to claim 25, it is characterised in that the 5th lens thing side surface is concave surface in dipped beam axle place, the 6th surface, lens image side is convex surface in dipped beam axle place.
28. camera optical eyeglass group according to claim 25, it is characterised in that the 3rd lens have negative refracting power, this surface, the first lens image side is convex surface in dipped beam axle place, and comprises at least one concave surface in off-axis place.
29. camera optical eyeglass group according to claim 25, it is characterized in that, these first lens, these second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens are all plastic cement material, this the first lens thing side surface is TL to this imaging surface distance on optical axis, the maximum image height of this camera optical eyeglass group is ImgH, and it meets following condition:
2.0<TL/ImgH<3.0。
30. camera optical eyeglass group according to claim 25, it is characterized in that, to the 6th surface, lens image side, the distance on optical axis is TD to this first lens thing side surface, 3rd surface, lens image side and the 5th lens thing side surface distance on optical axis are Dr6r9, and it meets following condition:
TD/Dr6r9<3.1。
31. camera optical eyeglass group according to claim 25, it is characterised in that it be concave surface, another surface in dipped beam axle place is convex surface in dipped beam axle place that the 4th lens, the 5th lens and the 6th lens all have a surface.
32. camera optical eyeglass group according to claim 25, it is characterised in that the radius of curvature of the 6th lens thing side surface is R11, the radius of curvature on the 6th surface, lens image side is R12, and it meets following condition:
(R11+R12)/(R11-R12)<-1.0。
33. camera optical eyeglass group according to claim 25, it is characterised in that the focal length of this camera optical eyeglass group is f, the focal length of these the first lens is f1, and the focal length of these the second lens is f2, and the focal length of the 6th lens is f6, and it meets following condition:
5.0<|f/f1|+|f/f2|+|f/f6|。
34. camera optical eyeglass group according to claim 25, it is characterized in that, in these first lens, these second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens, each two adjacent lens summations of spacing distance on optical axis are Σ AT, to the 6th surface, lens image side, the distance on optical axis is TD to this first lens thing side surface, and it meets following condition:
0.40<ΣAT/TD。
35. camera optical eyeglass group according to claim 25, it is characterised in that the focal length of this camera optical eyeglass group is f, the radius of curvature of this first lens thing side surface is R1, and the radius of curvature on the 6th surface, lens image side is R12, and it meets following condition:
4.0<f/R1-f/R12<8.5。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410840370.6A CN105807409B (en) | 2014-12-30 | 2014-12-30 | Camera optical eyeglass group, image-taking device and electronic device |
| CN201810930234.4A CN109031617B (en) | 2014-12-30 | 2014-12-30 | Image pickup optical lens group and image capturing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410840370.6A CN105807409B (en) | 2014-12-30 | 2014-12-30 | Camera optical eyeglass group, image-taking device and electronic device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810930234.4A Division CN109031617B (en) | 2014-12-30 | 2014-12-30 | Image pickup optical lens group and image capturing device |
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| CN105807409A true CN105807409A (en) | 2016-07-27 |
| CN105807409B CN105807409B (en) | 2018-09-14 |
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| CN201810930234.4A Active CN109031617B (en) | 2014-12-30 | 2014-12-30 | Image pickup optical lens group and image capturing device |
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| CN105807409B (en) | 2018-09-14 |
| CN109031617A (en) | 2018-12-18 |
| CN109031617B (en) | 2021-01-29 |
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