CN106997085A - Imaging system microscope group, image-taking device and electronic installation - Google Patents
Imaging system microscope group, image-taking device and electronic installation Download PDFInfo
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- CN106997085A CN106997085A CN201610044564.4A CN201610044564A CN106997085A CN 106997085 A CN106997085 A CN 106997085A CN 201610044564 A CN201610044564 A CN 201610044564A CN 106997085 A CN106997085 A CN 106997085A
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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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/004—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 four lenses
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Abstract
The invention discloses a kind of imaging system microscope group, image-taking device and electronic installation, imaging system microscope group sequentially includes the first lens, the second lens, the 3rd lens and the 4th lens by thing side to image side.First lens have negative refracting power, and its image side surface is concave surface at dipped beam axle.Second lens have negative refracting power.3rd lens have positive refracting power.4th lens have negative refracting power.The lens of imaging system microscope group are four.Imaging system microscope group further includes an aperture, is arranged between the second lens and the 3rd lens.Invention additionally discloses the image-taking device with above-mentioned imaging system microscope group and the electronic installation with image-taking device.
Description
Technical field
It is more particularly to a kind of to be applicable the present invention relates to a kind of imaging system microscope group, image-taking device and electronic installation
In the imaging system microscope group and image-taking device of electronic installation.
Background technology
In recent years, flourishing with miniaturization phtographic lens, the demand of minisize image acquisition module is increasingly improved,
And the photo-sensitive cell of general phtographic lens nothing more than be photosensitive coupling element (Charge Coupled Device,
) or Complimentary Metal-Oxide semiconductor element (Complementary Metal-Oxide CCD
Semiconductor Sensor, CMOS Sensor) two kinds, and progressing greatly with semiconductor process technique,
So that the picture element size reduction of photo-sensitive cell, along with electronic product now is with good and compact outer of function
Type is development trend.Therefore, the miniaturization phtographic lens for possessing good image quality becomes existing market
On main flow.
Due to high-order intelligent mobile phone (Smart Phone), Wearable device (Wearable in recent years
Device), tablet PC (Tablet Personal Computer), drive recorder (Dashboard
Camera prevailing, the phtographic lens of the electronic installation of a wide range of image) is obtained with the needs such as empty bat machine (Drone)
It is increasingly towards and meets wide viewing angle and the development of high-resolution demand.Conventional optical systems can configure substantial amounts
Lens to obtain wide viewing angle characteristic so that overall length of system is long, and is unfavorable for the miniaturization of phtographic lens.
Therefore, how to make optical system in the case where maintaining wide viewing angle characteristic while meeting high image quality and small-sized
One of the demand of change, the problem of actually current industry is to be solved.
The content of the invention
It is an object of the invention to provide a kind of imaging system microscope group, image-taking device and electronic installation.Imaging
First lens of system microscope group have negative refracting power, can form inverse focus lens structure (Retro-Focus), have
Help enable the light at big visual angle to be incident to imaging system microscope group.Second lens have negative refracting power, can be with
First lens effectively distribute the negative refracting power of inverse focus lens structure to reduce the susceptibility of imaging system microscope group, and
Can the big produced aberration of modifying factor visual angle change.3rd lens have positive refracting power, it is possible to provide imaging system mirror
Enough light collection abilities are organized to shorten the total length of imaging system microscope group.4th lens have negative flexion
Power, can effectively correct the Petzval sum (Petzval sum) of imaging system microscope group so that imaging surface is more flat,
And the amendment of astigmatism can be strengthened.When a specific condition is satisfied, can the space of active balance imaging system microscope group match somebody with somebody
Put and contribute to the assembling of lens.In addition, the thickness of the first lens and the second lens can be suitably allocated, and energy
The configuration of active balance lens is to lift image quality.In addition, helping to strengthen imaging system microscope group image side end
Refracting power, effectively to control the total length of imaging system microscope group.Furthermore, the first lens and second can be avoided
Lens produce interference, while being conducive to the assembling of lens.
The present invention provides a kind of imaging system microscope group, by thing side to image side sequentially comprising the first lens, second saturating
Mirror, the 3rd lens and the 4th lens.First lens have negative refracting power, and its image side surface is at dipped beam axle
Concave surface.Second lens have negative refracting power.3rd lens have positive refracting power.4th lens have negative flexion
Power.The lens of imaging system microscope group are four.Imaging system microscope group further includes an aperture, and aperture is arranged at
Between second lens and the 3rd lens.First lens and the second lens are T12 in the spacing distance on optical axis,
Second lens and the 3rd lens are T23 in the spacing distance on optical axis, and it meets following condition：
0<T23/T12<0.45。
The present invention separately provides a kind of image-taking device, and it includes foregoing imaging system microscope group and the photosensitive member of an electronics
Part, wherein, electronics photo-sensitive cell is arranged on an imaging surface of imaging system microscope group.
The present invention separately provides a kind of electronic installation, and it includes foregoing image-taking device.
The present invention provides a kind of imaging system microscope group again, and the first lens, second are sequentially included by thing side to image side
Lens, the 3rd lens and the 4th lens.First lens have negative refracting power, and its image side surface is at dipped beam axle
For concave surface.Second lens have negative refracting power, and its image side surface is concave surface at dipped beam axle.3rd lens have
There is positive refracting power.4th lens have negative refracting power.The lens of imaging system microscope group are four.Imaging system
Microscope group further includes an aperture, and aperture is arranged between the second lens and the 3rd lens.First lens are in optical axis
On thickness be CT1, the second lens in the thickness on optical axis be CT2, it meets following condition：
0<CT2/CT1<3.5。
The present invention provides a kind of imaging system microscope group again again, by thing side to image side sequentially comprising the first lens, the
Two lens, the 3rd lens and the 4th lens.First lens have negative refracting power, and its image side surface is in dipped beam axle
Locate as concave surface.Second lens have negative refracting power, and its image side surface is concave surface at dipped beam axle.3rd lens
With positive refracting power, its thing side surface is convex surface at dipped beam axle.4th lens have negative refracting power.Imaging
The lens of system microscope group are four.The radius of curvature of second lens image side surface is R4, the 3rd lens thing side
The radius of curvature on surface is R5, and the second lens are CT2, the first lens and the second lens in the thickness on optical axis
It is T12 in the spacing distance on optical axis, it meets following condition：
0<R5/R4<0.70；And
0<CT2/T12<3.0。
When T23/T12 meets above-mentioned condition, can active balance imaging system microscope group space configuration and help
In the assembling of lens.
When CT2/CT1 meets above-mentioned condition, the thickness of the first lens and the second lens can be suitably allocated, and
Can active balance lens configuration to lift image quality.
When R5/R4 meets above-mentioned condition, help to strengthen the refracting power at imaging system microscope group image side end, with
Effectively control the total length of imaging system microscope group.
When CT2/T12 meets above-mentioned condition, the first lens and the second lens can be avoided to produce interference, simultaneously
Be conducive to the assembling of lens.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as to the present invention's
Limit.
Brief description of the drawings
Fig. 1 illustrates the image-taking device schematic diagram according to first embodiment of the invention；
Fig. 2 is sequentially spherical aberration, astigmatism and the distortion curve figure of first embodiment from left to right；
Fig. 3 illustrates the image-taking device schematic diagram according to second embodiment of the invention；
Fig. 4 is sequentially spherical aberration, astigmatism and the distortion curve figure of second embodiment from left to right；
Fig. 5 illustrates the image-taking device schematic diagram according to third embodiment of the invention；
Fig. 6 is sequentially spherical aberration, astigmatism and the distortion curve figure of 3rd embodiment from left to right；
Fig. 7 illustrates the image-taking device schematic diagram according to fourth embodiment of the invention；
Fig. 8 is sequentially spherical aberration, astigmatism and the distortion curve figure of fourth embodiment from left to right；
Fig. 9 illustrates the image-taking device schematic diagram according to fifth embodiment of the invention；
Figure 10 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 5th embodiment from left to right；
Figure 11 illustrates the image-taking device schematic diagram according to sixth embodiment of the invention；
Figure 12 is sequentially spherical aberration, astigmatism and the distortion curve figure of sixth embodiment from left to right；
Figure 13 illustrates the image-taking device schematic diagram according to seventh embodiment of the invention；
Figure 14 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 7th embodiment from left to right；
Figure 15 illustrates the image-taking device schematic diagram according to eighth embodiment of the invention；
Figure 16 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 8th embodiment from left to right；
Figure 17 illustrates the image-taking device schematic diagram according to ninth embodiment of the invention；
Figure 18 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 9th embodiment from left to right；
Figure 19 illustrates the image-taking device schematic diagram according to tenth embodiment of the invention；
Figure 20 is sequentially spherical aberration, astigmatism and the distortion curve figure of the tenth embodiment from left to right；
Figure 21 illustrates the image-taking device schematic diagram according to eleventh embodiment of the invention；
Figure 22 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 11st embodiment from left to right；
Figure 23 illustrates a kind of schematic diagram of electronic installation according to the present invention；
Figure 24 illustrates the schematic diagram of another electronic installation according to the present invention；
Figure 25 illustrates the schematic diagram of still another electronic installation according to the present invention；
Figure 26 illustrates the schematic diagram of still another electronic installation again according to the present invention.
Wherein, reference
Capture Zhuan Zhi ︰ 10
Guang Quan ︰ 100,200,300,400,500,600,700,800,900,1000,1100
First Tou Jing ︰ 110,210,310,410,510,610,710,810,910,1010,1110
Thing Ce Biao Mian ︰ 111,211,311,411,511,611,711,811,911,1011,1111
As side surface ︰ 112,212,312,412,512,612,712,812,912,1012,1112
2nd saturating mirror ︰ 120,220,320,420,520,620,720,820,920,1020,1120
Thing Ce Biao Mian ︰ 121,221,321,421,521,621,721,821,921,1021,1121
As side surface ︰ 122,222,322,422,522,622,722,822,922,1022,1122
San Tou Jing ︰ 130,230,330,430,530,630,730,830,930,1030,1130
Thing Ce Biao Mian ︰ 131,231,331,431,531,631,731,831,931,1031,1131
As side surface ︰ 132,232,332,432,532,632,732,832,932,1032,1132
4th Tou Jing ︰ 140,240,340,440,540,640,740,840,940,1040,1140
Thing Ce Biao Mian ︰ 141,241,341,441,541,641,741,841,941,1041,1141
As side surface ︰ 142,242,342,442,542,642,742,842,942,1042,1142
Hong Wai Xian Filter Chu Filter Guang Yuan Jian ︰ 150,250,350,450,550,650,750,850,950,
1050、1150
Protective glass：160、260、360、460、560、660、760、860、960、1060、1160
Cheng Xiang Mian ︰ 170,270,370,470,570,670,770,870,970,1070,1170
Electronics photo-sensitive cell ︰ 180,280,380,480,580,680,780,880,980,1080,
1180
CT1：First lens are in the thickness on optical axis
CT2：Second lens are in the thickness on optical axis
CT3：3rd lens are in the thickness on optical axis
Dr3s：Second lens thing side surface is with aperture in the distance on optical axis
Dr4s：Second lens image side surface is with aperture in the distance on optical axis
Dr5s：3rd lens thing side surface is with aperture in the distance on optical axis
Dr6s：3rd lens image side surface is with aperture in the distance on optical axis
f：The focal length of imaging system microscope group
f1：The focal length of first lens
f4：The focal length of 4th lens
ff：It is arranged at the lensed focal length of institute between object and aperture
fr：It is arranged at the lensed focal length of institute between aperture and imaging surface
HFOV：The half at maximum visual angle in imaging system microscope group
R4：The radius of curvature of second lens image side surface
R5：The radius of curvature of 3rd lens thing side surface
R6：The radius of curvature of 3rd lens image side surface
R7：The radius of curvature of 4th lens thing side surface
R8：The radius of curvature of 4th lens image side surface
SL：Aperture is to imaging surface in the distance on optical axis
TL：First lens thing side surface is to imaging surface in Ju From on optical axis
T12：First lens and the second lens are in the spacing distance on optical axis
T23：Second lens and the 3rd lens are in the spacing distance on optical axis
V4：The dispersion system Number of 4th lens
ΣCT：Each lens are in the summation of the lens thickness on optical axis in imaging system microscope group
Embodiment
The structural principle and operation principle of the present invention are described in detail below in conjunction with the accompanying drawings：
Imaging system microscope group is by thing side to image side sequentially comprising the first lens, the second lens, the 3rd lens and the
Four lens.Wherein, the lens of imaging system microscope group are four.
In can on optical axis between each two adjacent lens in first lens, the second lens, the 3rd lens and the 4th lens
An airspace is respectively provided with, that is, the first lens, the second lens, the 3rd lens and the 4th lens can be four
Single disengaged (non-bonding) lens of piece.Because the more disengaged lens of the technique of cemented lens are complicated, particularly
It need to possess the curved surface of high accuracy on the composition surface of two lens, to reach the high adaptation during engagement of two lens,
And during engagement, more likely because off normal and caused by move axle defect, the overall optical imagery quality of influence.
Therefore, the first lens in imaging system microscope group to the 4th lens can be four single disengaged lens, and then
The problem that being effectively improved cemented lens.
First lens have negative refracting power, and its image side surface is concave surface at dipped beam axle.Whereby, it can form inverse
Focus lens structure, helps to enable the light at big visual angle to be incident to imaging system microscope group.In addition, first is saturating
Mirror thing side surface can be concave surface at dipped beam axle, contribute to the marginal ray for making visual angle larger to enter imaging system
Microscope group, to expand camera coverage.In addition, in the first lens thing side surface and image side surface, at least a surface can
With an at least point of inflexion.Whereby, contribute to the total length of shortening imaging system microscope group, make imaging system mirror
Group has wide viewing angle and the characteristic of miniaturization concurrently, while the aberration at energy modified off-axis.
Second lens have a negative refracting power, and its thing side surface can be concave surface at dipped beam axle, its image side surface in
It can be concave surface at dipped beam axle.Whereby, can with the negative refracting power of the inverse focus lens structure of the first lens effectively distribution with
The susceptibility of imaging system microscope group is reduced, and can the big produced aberration of modifying factor visual angle change.
3rd lens have positive refracting power, and its thing side surface can be convex surface at dipped beam axle.Whereby, it is possible to provide
The enough light collection abilities of imaging system microscope group are to shorten the total length of imaging system microscope group.
It can be concave surface that 4th lens, which have at negative refracting power, its image side surface dipped beam axle,.Whereby, can effectively it repair
The Petzval sum of positive imaging system microscope group is so that imaging surface is more flat, and can strengthen the amendment of astigmatism.In addition,
4th lens thing side surface can have an at least point of inflexion with an at least surface in the surface of image side.Whereby, it can repair
The off-axis visual field aberration at positive imaging system microscope group image side end has improved the resolution ratio on image periphery.
First lens and the second lens are T12 in the spacing distance on optical axis, the second lens and the 3rd lens in
Spacing distance on optical axis is T23, and it meets following condition：0<T23/T12<0.45.Whereby, may be used
The space configuration of active balance imaging system microscope group and contribute to the assembling of lens.It is preferred that it can be further
Meet following condition：0<T23/T12<0.25.
Second lens are CT2 in the thickness on optical axis, and the first lens are CT1 in the thickness on optical axis, and it is expired
Foot row condition：0<CT2/CT1<3.5.Whereby, the first lens and the second lens can suitably be allocated
Thickness, and can active balance lens configuration to lift image quality.It is preferred that it can further meet down
Row condition：0<CT2/CT1<2.0.
The radius of curvature of second lens image side surface is R4, and the radius of curvature of the 3rd lens thing side surface is R5,
It meets following condition：0<R5/R4<0.70.Whereby, contribute to strengthen imaging system microscope group image side end
Refracting power, effectively to control the total length of imaging system microscope group.
Second lens are CT2 in the thickness on optical axis, and the first lens and the second lens are in the spacer on optical axis
From for T12, it meets following condition：0<CT2/T12<3.0.Whereby, can avoid the first lens with
Second lens produce interference, while being conducive to the assembling of lens.
Second lens are CT2 in the thickness on optical axis, and the 3rd lens are CT3 in the thickness on optical axis, and it can
Meet following condition：CT3/CT2<1.20.Whereby, the thickness of the second lens and the 3rd lens can suitably be allocated
Degree, is conducive to lifting image quality and while reduces the susceptibility of imaging system microscope group.
The half at maximum visual angle is HFOV in imaging system microscope group, and it can meet following condition：1.40<
tan(HFOV).Whereby, contribute to the field of view angle of expansion imaging system microscope group, have imaging system microscope group
There is the advantage of wide-angle lens with applied to different electronic installations.
The radius of curvature of 4th lens thing side surface is R7, and the radius of curvature on the 4th lens image side surface is R8,
It can meet following condition：-2.50<(R7+R8)/(R7-R8)<2.60.Whereby, it can control the 4th saturating
The radius of curvature on mirror thing side surface and image side surface and be conducive to lens to be molded, while avoiding because lens surface is bent
Rate is excessive and causes yield too low.
Imaging system microscope group further includes an aperture, and the second lens thing side surface is in the distance on optical axis with aperture
Dr3s, the second lens image side surface and aperture are Dr4s, the 3rd lens thing side surface in the distance on optical axis
With aperture in the distance on optical axis be Dr5s, the 3rd lens image side surface is in the distance on optical axis with aperture
Dr6s, it can meet following condition：0<|Dr4s/Dr3s|<0.80 and 0<|Dr5s/Dr6s|<
0.80.Whereby, can position of the appropriately configured aperture in imaging system microscope group, contribute to increase imaging system
The symmetry of microscope group, and then lift image quality.It is preferred that it can further meet following condition：0<
|Dr4s/Dr3s|<0.50 and 0<|Dr5s/Dr6s|<0.50.
The focal length of first lens is f1, and the focal length of the 4th lens is f4, and it can meet following condition：0<
f4/f1<1.0.Whereby, refracting power of the imaging system microscope group at thing side Yu image side end can be balanced to configure,
So that thing side of the principal point of imaging system microscope group close to imaging system microscope group, helps to shorten imaging system mirror
The back focal length of group and further maintain the miniaturization of imaging system microscope group.
The dispersion system Number of 4th lens is V4, and it can meet following condition：V4<25.0.Whereby, can have
Effect amendment aberration, to avoid the situation of image overlap from producing.
The radius of curvature of 3rd lens thing side surface is R5, and the radius of curvature on the 3rd lens image side surface is R6,
It can meet following condition：-1.0<(R5+R6)/(R5-R6)<1.0.Whereby, the 3rd lens can be made
The face type of thing side surface and image side surface is more symmetrical, and helps to correct aberration.It is preferred that it can enter one
Step meets following condition：0<(R5+R6)/(R5-R6)<0.6.
First lens and the second lens are T12 in the spacing distance on optical axis, and the focal length of imaging system microscope group is
F, it can meet following condition：0.45<T12/f.Whereby, it can make to have between the first lens and the second lens
There are enough spacing distances, and be conducive to setting up other optical facilities elements in imaging system microscope group.
Aperture is SL in the distance on optical axis to imaging surface, and the first lens thing side surface is to imaging surface in optical axis
Upper Ju From are TL, and it can meet following condition：0.10<SL/TL<0.48.Whereby, can suitably it match somebody with somebody
Put aperture position and help to expand the field of view angle of imaging system microscope group, to strengthen the wide of imaging system microscope group
Angle characteristic.
First lens thing side surface to imaging surface in Ju From on optical axis be TL, the focal length of imaging system microscope group
For f, it can meet following condition：4.8<TL/f.Whereby, it can be ensured that imaging system microscope group has enough
Visual angle is to carry out large-scale image capture.It is preferred that it can further meet following condition：5.5<TL/f.
The lensed focal length of institute being arranged between an object and aperture is ff, is arranged at aperture and an imaging
The lensed focal length of institute between face is fr, and it can meet following condition：-1.5<ff/fr<-1.0.Borrow
This, can appropriate balance imaging system microscope group aperture both sides refracting power be distributed, have imaging system microscope group concurrently
Large aperture and the characteristic of miniaturization.Foregoing all lens and non-limiting lens numbers are multi-disc, and implying that can be with
One or more lens are set between object and aperture, and one or more lens can also be set in aperture
Between imaging surface.When only single element lens are arranged between object and aperture, ff is to be equal to this
The focal length of lens；When there is multi-disc lens to be arranged between object and aperture, ff is that to be equal to these saturating
The synthesis focal length of mirror.Similarly, when only single element lens are arranged between aperture and imaging surface, fr is
It is equal to the focal length of this lens；When there is multi-disc lens to be arranged between aperture and imaging surface, fr is equivalent
In the synthesis focal length of these lens.
Second lens are CT2 in the thickness on optical axis, and each lens are in the lens on optical axis in imaging system microscope group
The summation of thickness is that (i.e. the first lens, the second lens, the 3rd lens and the 4th lens are respectively at optical axis by Σ CT
On lens thickness summation), it can meet following condition：0<CT2/ΣCT<0.45.Whereby, thoroughly
The configuration of mirror is more appropriate, contributes to the assembling of lens to improve fine ratio of product, and maintains miniaturization simultaneously
Advantage.
The invention discloses imaging system microscope group in, the configuration of aperture can for preposition aperture or in put aperture.Its
In preposition aperture imply that aperture is arranged between object and the first lens, in put aperture and then represent that aperture is arranged at
Between first lens and imaging surface.If aperture is preposition aperture, the outgoing pupil (Exit of imaging system microscope group can be made
Pupil longer distance) is produced with imaging surface, telecentricity (Telecentric) effect is made it have, and can increase
The CCD or CMOS for powering up sub- photo-sensitive cell receive the efficiency of image；If in put aperture, contribute to expand
The angle of visual field of system, makes imaging system microscope group have the advantage of wide-angle lens.
The invention discloses imaging system microscope group in, the material of lens can be plastic cement or glass.When the material of lens
Matter is glass, can increase the free degree of refracting power configuration.It is plastic cement separately to work as lens material, then can be effective
Reduce production cost.In addition, can be aspherical easily to make in being set on lens surface aspherical (ASP)
It is made the shape beyond sphere, obtains more controlled variable, makes to cut down aberration, and then needed for reducing
With the number of lens, therefore it can effectively reduce optics total length.
The invention discloses imaging system microscope group in, if lens surface is convex surface and does not define the convex surface position
When, then it represents that the convex surface can be located at lens surface dipped beam axle；If lens surface is concave surface and not define this recessed
During the position of face, then it represents that the concave surface can be located at lens surface dipped beam axle.If the refracting power or focal length of lens are not
When defining its regional location, then it represents that the refracting power or focal length of the lens can be flexion of the lens at dipped beam axle
Power or focal length.
The invention discloses imaging system microscope group in, the imaging surface of imaging system microscope group is according to its corresponding sense electronics
The difference of optical element, for a plane or can have the curved surface of any curvature, particularly relate to concave surface towards toward thing side to
Curved surface.
In imaging system microscope group of the present invention, settable to have an at least diaphragm, its position may be disposed at the first lens
Before, between each lens or after last lens, the species such as the light diaphragm (Glare that shines of the diaphragm
Stop) or field stop (Field Stop) etc., it can be used to reduce veiling glare, help to lift image quality.
The present invention more provides a kind of image-taking device, and it includes foregoing imaging system microscope group and the photosensitive member of electronics
Part, wherein electronics photo-sensitive cell are arranged on the imaging surface of imaging system microscope group.It is preferred that the image-taking device
It can further include lens barrel, support device (Holder Member) or its combination.
Figure 23,24,25 and 26 are refer to, image-taking device 10 many-sided can be applied to intelligent mobile phone (such as
Shown in Figure 23), tablet PC (as shown in figure 24), Wearable device (as shown in figure 25) with driving remember
Record the electronic installations such as device (as shown in figure 26).It is preferred that electronic installation can further include control unit,
Display unit, storage element, random access memory (RAM) or its combination.
The more visual demand of imaging system microscope group of the present invention is applied in the optical system of mobile focusing, and is had concurrently
The characteristic of excellent lens error correction and good image quality.The present invention many-sided can also be applied to three-dimensional (3D) image
Acquisition, digital camera, mobile device, tablet PC, intelligent electric are regarded, network monitoring device, driving
In the electronic installations such as logger, reversing developing apparatus, somatic sensation television game machine and Wearable device.Before take off electronics dress
It is only the practice example for exemplarily illustrating the present invention to put, and not limits the fortune of the image-taking device of the present invention
Use scope.
According to above-mentioned embodiment, specific embodiment set forth below simultaneously coordinates accompanying drawing to be described in detail.
<First embodiment>
Fig. 1 and Fig. 2 is refer to, wherein Fig. 1 illustrates the image-taking device signal according to first embodiment of the invention
Figure, Fig. 2 is sequentially spherical aberration, astigmatism and the distortion curve figure of first embodiment from left to right.By Fig. 1
Understand, image-taking device includes imaging system microscope group (not another label) and electronics photo-sensitive cell 180.Imaging system
Microscope group is sequentially saturating comprising the first lens 110, the second lens 120, aperture the 100, the 3rd by thing side to image side
Mirror 130, the 4th lens 140, infrared ray filter out filter element (IR-cut Filter) 150, protective glass
160 with imaging surface 170.Wherein, electronics photo-sensitive cell 180 is arranged on imaging surface 170.Imaging system
The lens (110-140) of microscope group are four.
First lens 110 have negative refracting power, and are plastic cement material, and its thing side surface 111 is at dipped beam axle
For concave surface, its image side surface 112 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 111 has an at least point of inflexion.
Second lens 120 have negative refracting power, and are plastic cement material, and its thing side surface 121 is at dipped beam axle
For concave surface, its image side surface 122 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 130 have positive refracting power, and are plastic cement material, and its thing side surface 131 is at dipped beam axle
For convex surface, its image side surface 132 is convex surface at dipped beam axle, and its two surface is all aspherical.
4th lens 140 have negative refracting power, and are plastic cement material, and its thing side surface 141 is at dipped beam axle
For concave surface, its image side surface 142 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 141 and image side surface 142 are respectively provided with an at least point of inflexion.
The material of Hong Wai Xian Filter Chu Filter optical elements 150 and protective glass 160 is all glass, and it is sequentially arranged at
Between 4th lens 140 and imaging surface 170, the focal length of imaging system microscope group is had no effect on.
The aspherical fitting equation of above-mentioned each lens is expressed as follows：
In the imaging system microscope group of first embodiment, the focal length of imaging system microscope group is f, imaging system microscope group
F-number (F-number) be Fno, the half at maximum visual angle is HFOV, its numerical value in imaging system microscope group
It is as follows：F=0.75 millimeters (mm), Fno=2.70, HFOV=70.0 degree (deg.).
The half at maximum visual angle is HFOV in imaging system microscope group, and it meets following condition：Tan (HFOV)=
2.75。
The abbe number of 4th lens 140 is V4, and it meets following condition：V4=23.8.
First lens 110 and the second lens 120 are T12, the second lens 120 in the spacing distance on optical axis
With the 3rd lens 130 in the spacing distance on optical axis be T23, it meets following condition：T23/T12=0.17.
First lens 110 and the second lens 120 are T12, imaging system microscope group in the spacing distance on optical axis
Focal length be f, it meets following condition：T12/f=0.81.
Second lens 120 are CT2 in the thickness on optical axis, and the first lens 110 and the second lens 120 are in light
Spacing distance on axle is T12, and it meets following condition：CT2/T12=1.69.
First lens 110 are CT1 in the thickness on optical axis, and the second lens 120 are in the thickness on optical axis
CT2, it meets following condition：CT2/CT1=1.09.
Second lens 120 are CT2 in the thickness on optical axis, and the 3rd lens 130 are in the thickness on optical axis
CT3, it meets following condition：CT3/CT2=0.74.
Second lens 120 each lens (110-140) in the thickness on optical axis is CT2, imaging system microscope group
It is Σ CT in the summation of the lens thickness on optical axis, it meets following condition：CT2/ Σ CT=0.34.
Second lens thing side surface 121 and aperture 100 are Dr3s, the second lens picture in the distance on optical axis
Side surface 122 is Dr4s in the distance on optical axis with aperture 100, and it meets following condition：|Dr4s/Dr3s|
=0.05.
3rd lens thing side surface 131 and aperture 100 are Dr5s, the 3rd lens picture in the distance on optical axis
Side surface 132 is Dr6s in the distance on optical axis with aperture 100, and it meets following condition：|Dr5s/Dr6s|
=0.06.
The radius of curvature of second lens image side surface 122 is R4, the curvature of the 3rd lens thing side surface 131
Radius is R5, and it meets following condition：R5/R4=0.03.
The radius of curvature of 3rd lens thing side surface 131 is R5, the curvature on the 3rd lens image side surface 132
Radius is R6, and it meets following condition：(R5+R6)/(R5-R6)=0.31.
The radius of curvature of 4th lens thing side surface 141 is R7, the curvature on the 4th lens image side surface 142
Radius is R8, and it meets following condition：(R7+R8)/(R7-R8)=0.10.
The focal length of first lens 110 is f1, and the focal length of the 4th lens 140 is f4, and it meets following condition：
F4/f1=0.61.
The lensed focal length of institute being arranged between an object (not illustrating) and aperture 100 is ff, is arranged at
The lensed focal length of institute between aperture 100 and imaging surface 170 is fr, and it meets following condition：Ff/fr=
-1.34.In the present embodiment, ff is the synthesis focal length of the first lens 110 and the second lens 120, and
And fr is the synthesis focal length of the 3rd lens 130 and the 4th lens 140.
First lens thing side surface 111 to imaging surface 170 in Ju From on optical axis be TL, imaging system mirror
The focal length of group is f, and it meets following condition：TL/f=6.52.
Aperture 100 to imaging surface 170 in the distance on optical axis be SL, the first lens thing side surface 111 to
Imaging surface 170 is TL in Ju From on optical axis, and it meets following condition：SL/TL=0.47.
Coordinate with reference to following table one and table two.
Table one is the list of the detailed structured data, wherein radius of curvature, thickness and focal length of Fig. 1 first embodiments
Position is mm, and surface 0 to 14 sequentially represented by the surface of thing side to image side.Table two is in first embodiment
Aspherical surface data, wherein, k is the conical surface coefficient in aspheric curve equation, and A4 to A10 then represents
Each rank asphericity coefficient of surface the 4 to 10th.In addition, following embodiment form is each embodiment of correspondence
Definition of the definition of data all with the table one and table two of first embodiment in schematic diagram and aberration curve figure, form
Identical, not in this to go forth.
<Second embodiment>
Fig. 3 and Fig. 4 is refer to, wherein Fig. 3 illustrates the image-taking device signal according to second embodiment of the invention
Figure, Fig. 4 is sequentially spherical aberration, astigmatism and the distortion curve figure of second embodiment from left to right.By Fig. 3
Understand, image-taking device includes imaging system microscope group (not another label) and electronics photo-sensitive cell 280.Imaging system
Microscope group is sequentially saturating comprising the first lens 210, the second lens 220, aperture the 200, the 3rd by thing side to image side
Mirror 230, the 4th lens 240, infrared ray filter out filter element 250, protective glass 260 and imaging surface 270.
Wherein, electronics photo-sensitive cell 280 is arranged on imaging surface 270.The lens (210-240) of imaging system microscope group
For four.
First lens 210 have negative refracting power, and are plastic cement material, and its thing side surface 211 is at dipped beam axle
For concave surface, its image side surface 212 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 211 has an at least point of inflexion.
Second lens 220 have negative refracting power, and are plastic cement material, and its thing side surface 221 is at dipped beam axle
For convex surface, its image side surface 222 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 230 have positive refracting power, and are plastic cement material, and its thing side surface 231 is at dipped beam axle
For convex surface, its image side surface 232 is convex surface at dipped beam axle, and its two surface is all aspherical.
4th lens 240 have negative refracting power, and are plastic cement material, and its thing side surface 241 is at dipped beam axle
For convex surface, its image side surface 242 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 241 has an at least point of inflexion.
The material of Hong Wai Xian Filter Chu Filter optical elements 250 and protective glass 260 is all glass, and it is sequentially arranged at
Between 4th lens 240 and imaging surface 270, the focal length of imaging system microscope group is had no effect on.
It please coordinate with reference to following table three and table four.
In second embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<3rd embodiment>
Fig. 5 and Fig. 6 is refer to, wherein Fig. 5 illustrates the image-taking device signal according to third embodiment of the invention
Figure, Fig. 6 is sequentially spherical aberration, astigmatism and the distortion curve figure of 3rd embodiment from left to right.By Fig. 5
Understand, image-taking device includes imaging system microscope group (not another label) and electronics photo-sensitive cell 380.Imaging system
Microscope group is sequentially saturating comprising the first lens 310, the second lens 320, aperture the 300, the 3rd by thing side to image side
Mirror 330, the 4th lens 340, infrared ray filter out filter element 350, protective glass 360 and imaging surface 370.
Wherein, electronics photo-sensitive cell 380 is arranged on imaging surface 370.The lens (310-340) of imaging system microscope group
For four.
First lens 310 have negative refracting power, and are plastic cement material, and its thing side surface 311 is at dipped beam axle
For concave surface, its image side surface 312 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 311 has an at least point of inflexion.
Second lens 320 have negative refracting power, and are plastic cement material, and its thing side surface 321 is at dipped beam axle
For convex surface, its image side surface 322 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 330 have positive refracting power, and are plastic cement material, and its thing side surface 331 is at dipped beam axle
For convex surface, its image side surface 332 is convex surface at dipped beam axle, and its two surface is all aspherical.
4th lens 340 have negative refracting power, and are plastic cement material, and its thing side surface 341 is at dipped beam axle
For concave surface, its image side surface 342 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 341 has an at least point of inflexion.
The material of Hong Wai Xian Filter Chu Filter optical elements 350 and protective glass 360 is all glass, and it is sequentially arranged at
Between 4th lens 340 and imaging surface 370, the focal length of imaging system microscope group is had no effect on.
It please coordinate with reference to following table five and table six.
In 3rd embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<Fourth embodiment>
Fig. 7 and Fig. 8 is refer to, wherein Fig. 7 illustrates the image-taking device signal according to fourth embodiment of the invention
Figure, Fig. 8 is sequentially spherical aberration, astigmatism and the distortion curve figure of fourth embodiment from left to right.By Fig. 7
Understand, image-taking device includes imaging system microscope group (not another label) and electronics photo-sensitive cell 480.Imaging system
Microscope group is sequentially saturating comprising the first lens 410, the second lens 420, aperture the 400, the 3rd by thing side to image side
Mirror 430, the 4th lens 440, infrared ray filter out filter element 450, protective glass 460 and imaging surface 470.
Wherein, electronics photo-sensitive cell 480 is arranged on imaging surface 470.The lens (410-440) of imaging system microscope group
For four.
First lens 410 have negative refracting power, and are plastic cement material, and its thing side surface 411 is at dipped beam axle
For convex surface, its image side surface 412 is concave surface at dipped beam axle, and its two surface is all aspherical.
Second lens 420 have negative refracting power, and are plastic cement material, and its thing side surface 421 is at dipped beam axle
For concave surface, its image side surface 422 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 430 have positive refracting power, and are plastic cement material, and its thing side surface 431 is at dipped beam axle
For convex surface, its image side surface 432 is convex surface at dipped beam axle, and its two surface is all aspherical.
4th lens 440 have negative refracting power, and are plastic cement material, and its thing side surface 441 is at dipped beam axle
For convex surface, its image side surface 442 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 441 has an at least point of inflexion.
The material of Hong Wai Xian Filter Chu Filter optical elements 450 and protective glass 460 is all glass, and it is sequentially arranged at
Between 4th lens 440 and imaging surface 470, the focal length of imaging system microscope group is had no effect on.
It please coordinate with reference to following table seven and table eight.
In fourth embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<5th embodiment>
Fig. 9 and Figure 10 is refer to, wherein Fig. 9 is illustrated to be shown according to the image-taking device of fifth embodiment of the invention
It is intended to, Figure 10 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 5th embodiment from left to right.By scheming
9 understand, image-taking device includes imaging system microscope group (not another label) and electronics photo-sensitive cell 580.Imaging system
Microscope group of uniting sequentially includes the first lens 510, the second lens 520, aperture the 500, the 3rd by thing side to image side
Lens 530, the 4th lens 540, infrared ray filter out filter element 550, protective glass 560 and imaging surface
570.Wherein, electronics photo-sensitive cell 580 is arranged on imaging surface 570.The lens of imaging system microscope group
(510-540) is four.
First lens 510 have negative refracting power, and are plastic cement material, and its thing side surface 511 is at dipped beam axle
For convex surface, its image side surface 512 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 511 has an at least point of inflexion.
Second lens 520 have negative refracting power, and are plastic cement material, and its thing side surface 521 is at dipped beam axle
For concave surface, its image side surface 522 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 530 have positive refracting power, and are plastic cement material, and its thing side surface 531 is at dipped beam axle
For convex surface, its image side surface 532 is convex surface at dipped beam axle, and its two surface is all aspherical.
4th lens 540 have negative refracting power, and are plastic cement material, and its thing side surface 541 is at dipped beam axle
For convex surface, its image side surface 542 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 541 has an at least point of inflexion.
The material of Hong Wai Xian Filter Chu Filter optical elements 550 and protective glass 560 is all glass, and it is sequentially arranged at
Between 4th lens 540 and imaging surface 570, the focal length of imaging system microscope group is had no effect on.
It please coordinate with reference to following table nine and table ten.
In 5th embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<Sixth embodiment>
Figure 11 and Figure 12 is refer to, wherein Figure 11 illustrates the image-taking device according to sixth embodiment of the invention
Schematic diagram, Figure 12 is sequentially spherical aberration, astigmatism and the distortion curve figure of sixth embodiment from left to right.By
Figure 11 understands that image-taking device includes imaging system microscope group (not another label) and electronics photo-sensitive cell 680.Into
As system microscope group by thing side to image side sequentially comprising the first lens 610, the second lens 620, aperture 600,
3rd lens 630, the 4th lens 640, infrared ray filter out filter element 650, protective glass 660 with into
Image planes 670.Wherein, electronics photo-sensitive cell 680 is arranged on imaging surface 670.Imaging system microscope group it is saturating
Mirror (610-640) is four.
First lens 610 have negative refracting power, and are plastic cement material, and its thing side surface 611 is at dipped beam axle
For convex surface, its image side surface 612 is concave surface at dipped beam axle, and its two surface is all aspherical.
Second lens 620 have negative refracting power, and are plastic cement material, and its thing side surface 621 is at dipped beam axle
For convex surface, its image side surface 622 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 630 have positive refracting power, and are plastic cement material, and its thing side surface 631 is at dipped beam axle
For convex surface, its image side surface 632 is convex surface at dipped beam axle, and its two surface is all aspherical.
4th lens 640 have negative refracting power, and are plastic cement material, and its thing side surface 641 is at dipped beam axle
For convex surface, its image side surface 642 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 641 and image side surface 642 are respectively provided with an at least point of inflexion.
The material of Hong Wai Xian Filter Chu Filter optical elements 650 and protective glass 660 is all glass, and it is sequentially arranged at
Between 4th lens 640 and imaging surface 670, the focal length of imaging system microscope group is had no effect on.
It please coordinate with reference to following table 11 and table 12.
In sixth embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<7th embodiment>
Figure 13 and Figure 14 is refer to, wherein Figure 13 illustrates the image-taking device according to seventh embodiment of the invention
Schematic diagram, Figure 14 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 7th embodiment from left to right.By
Figure 13 understands that image-taking device includes imaging system microscope group (not another label) and electronics photo-sensitive cell 780.Into
As system microscope group by thing side to image side sequentially comprising the first lens 710, the second lens 720, aperture 700,
3rd lens 730, the 4th lens 740, infrared ray filter out filter element 750, protective glass 760 with into
Image planes 770.Wherein, electronics photo-sensitive cell 780 is arranged on imaging surface 770.Imaging system microscope group it is saturating
Mirror (710-740) is four.
First lens 710 have negative refracting power, and are plastic cement material, and its thing side surface 711 is at dipped beam axle
For concave surface, its image side surface 712 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 711 has an at least point of inflexion.
Second lens 720 have negative refracting power, and are plastic cement material, and its thing side surface 721 is at dipped beam axle
For concave surface, its image side surface 722 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 730 have positive refracting power, and are plastic cement material, and its thing side surface 731 is at dipped beam axle
For convex surface, its image side surface 732 is convex surface at dipped beam axle, and its two surface is all aspherical.
4th lens 740 have negative refracting power, and are plastic cement material, and its thing side surface 741 is at dipped beam axle
For concave surface, its image side surface 742 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 741 and image side surface 742 are respectively provided with an at least point of inflexion.
The material of Hong Wai Xian Filter Chu Filter optical elements 750 and protective glass 760 is all glass, and it is sequentially arranged at
Between 4th lens 740 and imaging surface 770, the focal length of imaging system microscope group is had no effect on.
It please coordinate with reference to following table 13 and table 14.
In 7th embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<8th embodiment>
Figure 15 and Figure 16 is refer to, wherein Figure 15 illustrates the image-taking device according to eighth embodiment of the invention
Schematic diagram, Figure 16 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 8th embodiment from left to right.By
Figure 15 understands that image-taking device includes imaging system microscope group (not another label) and electronics photo-sensitive cell 880.Into
As system microscope group by thing side to image side sequentially comprising the first lens 810, the second lens 820, aperture 800,
3rd lens 830, the 4th lens 840, infrared ray filter out filter element 850, protective glass 860 with into
Image planes 870.Wherein, electronics photo-sensitive cell 880 is arranged on imaging surface 870.Imaging system microscope group it is saturating
Mirror (810-840) is four.
First lens 810 have negative refracting power, and are plastic cement material, and its thing side surface 811 is at dipped beam axle
For concave surface, its image side surface 812 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 811 has an at least point of inflexion.
Second lens 820 have negative refracting power, and are plastic cement material, and its thing side surface 821 is at dipped beam axle
For convex surface, its image side surface 822 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 830 have positive refracting power, and are plastic cement material, and its thing side surface 831 is at dipped beam axle
For convex surface, its image side surface 832 is convex surface at dipped beam axle, and its two surface is all aspherical.
4th lens 840 have negative refracting power, and are plastic cement material, and its thing side surface 841 is at dipped beam axle
For concave surface, its image side surface 842 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 841 and image side surface 842 are respectively provided with an at least point of inflexion.
The material of Hong Wai Xian Filter Chu Filter optical elements 850 and protective glass 860 is all glass, and it is sequentially arranged at
Between 4th lens 840 and imaging surface 870, the focal length of imaging system microscope group is had no effect on.
It please coordinate with reference to following table 15 and table 16.
In 8th embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<9th embodiment>
Figure 17 and Figure 18 is refer to, wherein Figure 17 illustrates the image-taking device according to ninth embodiment of the invention
Schematic diagram, Figure 18 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 9th embodiment from left to right.By
Figure 17 understands that image-taking device includes imaging system microscope group (not another label) and electronics photo-sensitive cell 980.Into
As system microscope group by thing side to image side sequentially comprising the first lens 910, the second lens 920, aperture 900,
3rd lens 930, the 4th lens 940, infrared ray filter out filter element 950, protective glass 960 with into
Image planes 970.Wherein, electronics photo-sensitive cell 980 is arranged on imaging surface 970.Imaging system microscope group it is saturating
Mirror (910-940) is four.
First lens 910 have negative refracting power, and are plastic cement material, and its thing side surface 911 is at dipped beam axle
For concave surface, its image side surface 912 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 911 has an at least point of inflexion.
Second lens 920 have negative refracting power, and are plastic cement material, and its thing side surface 921 is at dipped beam axle
For convex surface, its image side surface 922 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 930 have positive refracting power, and are plastic cement material, and its thing side surface 931 is at dipped beam axle
For convex surface, its image side surface 932 is convex surface at dipped beam axle, and its two surface is all aspherical.
4th lens 940 have negative refracting power, and are plastic cement material, and its thing side surface 941 is at dipped beam axle
For convex surface, its image side surface 942 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 941 and image side surface 942 are respectively provided with an at least point of inflexion.
The material of Hong Wai Xian Filter Chu Filter optical elements 950 and protective glass 960 is all glass, and it is sequentially arranged at
Between 4th lens 940 and imaging surface 970, the focal length of imaging system microscope group is had no effect on.
It please coordinate with reference to following table 17 and table 18.
In 9th embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<Tenth embodiment>
Figure 19 and Figure 20 is refer to, wherein Figure 19 illustrates the image-taking device according to tenth embodiment of the invention
Schematic diagram, Figure 20 is sequentially spherical aberration, astigmatism and the distortion curve figure of the tenth embodiment from left to right.By
Figure 19 understands that image-taking device includes imaging system microscope group (not another label) and electronics photo-sensitive cell 1080.Into
As system microscope group by thing side to image side sequentially comprising the first lens 1010, the second lens 1020, aperture 1000,
3rd lens 1030, the 4th lens 1040, infrared ray filter out filter element 1050, protective glass 1060
With imaging surface 1070.Wherein, electronics photo-sensitive cell 1080 is arranged on imaging surface 1070.Imaging system
The lens (1010-1040) of microscope group are four.
First lens 1010 have negative refracting power, and are plastic cement material, and its thing side surface 1011 is in dipped beam axle
Locate as concave surface, its image side surface 1012 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing
Side surface 1011 has an at least point of inflexion.
Second lens 1020 have negative refracting power, and are plastic cement material, and its thing side surface 1021 is in dipped beam axle
Locate as concave surface, its image side surface 1022 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 1030 have positive refracting power, and are plastic cement material, and its thing side surface 1031 is in dipped beam axle
Locate as convex surface, its image side surface 1032 is convex surface at dipped beam axle, and its two surface is all aspherical.
4th lens 1040 have negative refracting power, and are plastic cement material, and its thing side surface 1041 is in dipped beam axle
Locate as concave surface, its image side surface 1042 is convex surface at dipped beam axle, and its two surface is all aspherical, its thing
Side surface 1041 and image side surface 1042 are respectively provided with an at least point of inflexion.
The material of Hong Wai Xian Filter Chu Filter optical elements 1050 and protective glass 1060 is all glass, and it is sequentially set
Between the 4th lens 1040 and imaging surface 1070, the focal length of imaging system microscope group is had no effect on.
It please coordinate with reference to following table 19 and table 20.
In tenth embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<11st embodiment>
Figure 21 and Figure 22 is refer to, wherein Figure 21 illustrates the capture dress according to eleventh embodiment of the invention
Schematic diagram is put, Figure 22 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 11st embodiment from left to right.
As shown in Figure 21, image-taking device includes imaging system microscope group (not another label) and electronics photo-sensitive cell 1180.
Imaging system microscope group sequentially includes the first lens 1110, the second lens 1120, aperture by thing side to image side
1100th, the 3rd lens 1130, the 4th lens 1140, infrared ray filter out filter element 1150, protective glass
1160 with imaging surface 1170.Wherein, electronics photo-sensitive cell 1180 is arranged on imaging surface 1170.Imaging
The lens (1110-1140) of system microscope group are four.
First lens 1110 have negative refracting power, and are plastic cement material, and its thing side surface 1111 is in dipped beam axle
Locate as concave surface, its image side surface 1112 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing
Side surface 1111 has an at least point of inflexion.
Second lens 1120 have negative refracting power, and are plastic cement material, and its thing side surface 1121 is in dipped beam axle
Locate as concave surface, its image side surface 1122 is convex surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 1130 have positive refracting power, and are plastic cement material, and its thing side surface 1131 is in dipped beam axle
Locate as convex surface, its image side surface 1132 is convex surface at dipped beam axle, and its two surface is all aspherical.
4th lens 1140 have negative refracting power, and are plastic cement material, and its thing side surface 1141 is in dipped beam axle
Locate as concave surface, its image side surface 1142 is convex surface at dipped beam axle, and its two surface is all aspherical, its thing
Side surface 1141 and image side surface 1142 are respectively provided with an at least point of inflexion.
The material of Hong Wai Xian Filter Chu Filter optical elements 1150 and protective glass 1160 is all glass, and it is sequentially set
Between the 4th lens 1140 and imaging surface 1170, the focal length of imaging system microscope group is had no effect on.
It please coordinate with reference to following table 21 and table 22.
In 11st embodiment, aspherical fitting equation represents the form such as first embodiment.In addition,
Definition described in following table is all identical with first embodiment, and not in this to go forth.
Above-mentioned image-taking device may be disposed in electronic installation.The present invention uses the imaging system with four lens
Microscope group, wherein the first lens have negative refracting power, can form inverse focus lens structure, help to make big visual angle
Light can be incident to imaging system microscope group.Second lens have negative refracting power, can effectively divide with the first lens
Negative refracting power with inverse focus lens structure to reduce the susceptibility of imaging system microscope group, and can modifying factor visual angle become
Aberration produced by big.3rd lens have positive refracting power, it is possible to provide the enough light of imaging system microscope group converges
Cumulative power is to shorten the total length of imaging system microscope group.4th lens have negative refracting power, can effectively be modified to
As the Petzval sum of system microscope group is so that imaging surface is more flat, and can strengthen the amendment of astigmatism.It is special when meeting
During fixed condition, can active balance imaging system microscope group space configuration and contribute to the assembling of lens.In addition,
Can suitably allocate the thickness of the first lens and the second lens, and can active balance lens configuration to lift imaging
Quality.In addition, helping to strengthen the refracting power at imaging system microscope group image side end, effectively to control imaging system
The total length of microscope group.Furthermore, the first lens and the second lens can be avoided to produce interference, while being conducive to lens
Assembling.In summary, imaging system microscope group provided by the present invention can meet miniaturization, wide viewing angle simultaneously
And the demand such as high image quality.
Although the present invention is disclosed above with embodiment, so it is not limited to 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 originally
The protection domain of invention is defined when the scope defined depending on appended claim.
Claims (27)
1. a kind of imaging system microscope group, it is characterised in that sequentially included by thing side to image side：
One first lens, with negative refracting power, its image side surface is concave surface at dipped beam axle；
One second lens, with negative refracting power；
One the 3rd lens, with positive refracting power；And
One the 4th lens, with negative refracting power；
Wherein, the lens of the imaging system microscope group are four, and the imaging system microscope group further includes an aperture, and
The aperture is arranged between second lens and the 3rd lens；
Wherein, first lens and second lens in the spacing distance on optical axis be T12, second lens
With the 3rd lens in the spacing distance on optical axis be T23, it meets following condition：
0<T23/T12<0.45。
2. imaging system microscope group according to claim 1, it is characterised in that the first lens thing side
Surface is concave surface at dipped beam axle.
3. imaging system microscope group according to claim 1, it is characterised in that the 4th lens image side
Surface is concave surface at dipped beam axle.
4. imaging system microscope group according to claim 1, it is characterised in that the second lens thing side
Surface is concave surface at dipped beam axle.
5. imaging system microscope group according to claim 1, it is characterised in that first lens are with being somebody's turn to do
Second lens are T12 in the spacing distance on optical axis, and second lens and the 3rd lens are between on optical axis
Gauge is from for T23, and it meets following condition：
0<T23/T12<0.25。
6. imaging system microscope group according to claim 1, it is characterised in that second lens are in light
Thickness on axle is CT2, and the 3rd lens are CT3 in the thickness on optical axis, and it meets following condition：
CT3/CT2<1.20。
7. imaging system microscope group according to claim 1, it is characterised in that first lens, should
The thing side surface and image side surface of each lens are all aspheric in second lens, the 3rd lens and the 4th lens
Face, first lens, second lens, the 3rd lens and the 4th lens are all single disengaged lens,
The half at maximum visual angle is HFOV in the imaging system microscope group, and it meets following condition：
1.40<tan(HFOV)。
8. imaging system microscope group according to claim 1, it is characterised in that the 4th lens thing side
The radius of curvature on surface is R7, and the radius of curvature on the 4th lens image side surface is R8, and it meets following bar
Part：
-2.50<(R7+R8)/(R7-R8)<2.60。
9. imaging system microscope group according to claim 1, it is characterised in that the second lens thing side
Surface is Dr3s in the distance on optical axis with the aperture, and the second lens image side surface is with the aperture in optical axis
On distance be Dr4s, the 3rd lens thing side surface and the aperture are Dr5s in the distance on optical axis, should
3rd lens image side surface is Dr6s in the distance on optical axis with the aperture, and it meets following condition：
0<|Dr4s/Dr3s|<0.80；And
0<|Dr5s/Dr6s|<0.80。
10. imaging system microscope group according to claim 1, it is characterised in that Jiao of first lens
Away from for f1, the focal length of the 4th lens is f4, and it meets following condition：
0<f4/f1<1.0。
11. a kind of image-taking device, it is characterised in that include：
Imaging system microscope group according to claim 1；And
One electronics photo-sensitive cell, it is characterised in that the electronics photo-sensitive cell is arranged at the imaging system microscope group
On one imaging surface.
12. a kind of electronic installation, it is characterised in that include：
Image-taking device according to claim 11.
13. a kind of imaging system microscope group, it is characterised in that sequentially included by thing side to image side：
One first lens, with negative refracting power, its image side surface is concave surface at dipped beam axle；
One second lens, with negative refracting power, its image side surface is concave surface at dipped beam axle；
One the 3rd lens, with positive refracting power；And
One the 4th lens, with negative refracting power；
Wherein the lens of the imaging system microscope group are four, and the imaging system microscope group further includes an aperture, and should
Aperture is arranged between second lens and the 3rd lens；
Wherein, first lens are CT1 in the thickness on optical axis, and second lens are in the thickness on optical axis
CT2, it meets following condition：
0<CT2/CT1<3.5。
14. imaging system microscope group according to claim 13, it is characterised in that the 4th lens
Dispersion system Number is V4, and it meets following condition：
V4<25.0。
15. imaging system microscope group according to claim 13, it is characterised in that first lens in
Thickness on optical axis is CT1, and second lens are CT2 in the thickness on optical axis, and it meets following condition：
0<CT2/CT1<2.0。
16. imaging system microscope group according to claim 13, it is characterised in that first lens,
Second lens, the 3rd lens and the 4th lens are all single disengaged lens, the 3rd lens thing side
The radius of curvature on surface is R5, and the radius of curvature on the 3rd lens image side surface is R6, and it meets following bar
Part：
-1.0<(R5+R6)/(R5-R6)<1.0。
17. imaging system microscope group according to claim 13, it is characterised in that the 3rd lens thing
The radius of curvature of side surface is R5, and the radius of curvature on the 3rd lens image side surface is R6, and it meets following
Condition：
0<(R5+R6)/(R5-R6)<0.60。
18. imaging system microscope group according to claim 13, it is characterised in that first lens with
Second lens are T12 in the spacing distance on optical axis, and the focal length of the imaging system microscope group is f, and it meets
Following condition：
0.45<T12/f。
19. imaging system microscope group according to claim 13, it is characterised in that the aperture is to one one-tenth
Image planes are SL in the distance on optical axis, and the first lens thing side surface to the imaging surface is in Ju From on optical axis
For TL, it meets following condition：
0.10<SL/TL<0.48。
20. imaging system microscope group according to claim 13, it is characterised in that the first lens thing
Side surface is TL in Ju From on optical axis to an imaging surface, and the focal length of the imaging system microscope group is f, and it meets
Following condition：
4.8<TL/f。
21. a kind of imaging system microscope group, it is characterised in that sequentially included by thing side to image side：
One first lens, with negative refracting power, its image side surface is concave surface at dipped beam axle；
One second lens, with negative refracting power, its image side surface is concave surface at dipped beam axle；
One the 3rd lens, with positive refracting power, its thing side surface is convex surface at dipped beam axle；And
One the 4th lens, with negative refracting power；
Wherein, the lens of the imaging system microscope group are four, and the radius of curvature on the second lens image side surface is
R4, the radius of curvature of the 3rd lens thing side surface is R5, and second lens are CT2 in the thickness on optical axis,
First lens are T12 in the spacing distance on optical axis with second lens, and it meets following condition：
0<R5/R4<0.70；And
0<CT2/T12<3.0。
22. imaging system microscope group according to claim 21, it is characterised in that the first lens thing
Side surface has an at least point of inflexion with an at least surface in the surface of image side.
23. imaging system microscope group according to claim 21, it is characterised in that the 4th lens thing
Side surface has an at least point of inflexion with an at least surface in the surface of image side.
24. imaging system microscope group according to claim 21, it is characterised in that the first lens thing
Side surface is TL in Ju From on optical axis to an imaging surface, and the focal length of the imaging system microscope group is f, and it meets
Following condition：
5.5<TL/f。
25. imaging system microscope group according to claim 21, further includes an aperture, it is characterised in that
The lensed focal length of institute being arranged between an object and the aperture is ff, is arranged at the aperture and an imaging
The lensed focal length of institute between face is fr, and it meets following condition：
-1.5<ff/fr<-1.0。
26. imaging system microscope group according to claim 21, it is characterised in that second lens in
Thickness on optical axis is that each lens are in CT2, the imaging system microscope group in the summation of the lens thickness on optical axis
Σ CT, it meets following condition：
0<CT2/ΣCT<0.45。
27. imaging system microscope group according to claim 21, further includes an aperture, it is characterised in that
The aperture to an imaging surface in the distance on optical axis be SL, the first lens thing side surface to the imaging surface in
Ju From are TL on optical axis, and it meets following condition：
0.10<SL/TL<0.48。
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| CN201610044564.4A CN106997085B (en) | 2016-01-22 | 2016-01-22 | Imaging system microscope group, image-taking device and electronic device |
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| CN201610044564.4A CN106997085B (en) | 2016-01-22 | 2016-01-22 | Imaging system microscope group, image-taking device and electronic device |
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