CN106547070A - Image capture microscope group, image-taking device and electronic installation - Google Patents
Image capture microscope group, image-taking device and electronic installation Download PDFInfo
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- CN106547070A CN106547070A CN201510610695.XA CN201510610695A CN106547070A CN 106547070 A CN106547070 A CN 106547070A CN 201510610695 A CN201510610695 A CN 201510610695A CN 106547070 A CN106547070 A CN 106547070A
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- lens
- image
- image capture
- thing side
- capture microscope
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
Abstract
The invention discloses a kind of image capture microscope group, image-taking device and electronic installation, image capture microscope group is by thing side to image side sequentially comprising the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens.Second lens have positive refracting power.3rd lens image side surface is concave surface, and its thing side surface and image side surface are all aspheric surface.4th lens image side surface is convex surface, and its thing side surface and image side surface are all aspheric surface.5th lens have negative refracting power, and its thing side surface is all aspheric surface with image side surface.6th lens image side surface is concave surface, and its thing side surface and image side surface are all aspheric surface, and its thing side surface has an at least point of inflexion with an at least surface in the surface of image side.Invention additionally discloses the image-taking device with above-mentioned image capture microscope group and the electronic installation with image-taking device.
Description
Technical field
The present invention relates to a kind of image capture microscope group, image-taking device and electronic installation, more particularly to a kind of to be suitable for
In the image capture microscope group and image-taking device of electronic installation.
Background technology
In recent years, flourishing with miniaturization photographic lenss, the demand of minisize image acquisition module is day by day improved,
And the photo-sensitive cell of general photographic lenss 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 Pixel Dimensions of photo-sensitive cell reduce, along with electronic product now is with good and compact outer of function
Type is development trend, therefore, the miniaturization photographic lenss for possessing good image quality become existing market
On main flow.
Tradition is equipped on the lens knot more than the high pixel miniaturization photographic lenss on electronic installation using few piece number
Based on structure, but due to high-order intelligent mobile phone (Smart Phone), Wearable device (Wearable Device)
It is small-sized with the drive prevailing of the high standard mobile device such as tablet PC (Tablet Personal Computer)
Change requirement of the photographic lenss in pixel with image quality to be lifted, existing lens group will be unable to meet higher order
Demand.Additionally, though there have the optical system that conventional lenses are configured meet high standard mobile device at present to be wanted
The miniature requirement asked, but this optical system is difficult to provide wide viewing angle and good lens error correction ability and make
Obtain image quality not good.Therefore, how to provide while having miniaturization, wide viewing angle and high image quality concurrently
The optical system actually at present problem suddenly solved by industry.
The content of the invention
It is an object of the invention to provide a kind of image capture microscope group, image-taking device and electronic installation, wherein
Image capture microscope group includes six-element lens.Second lens have positive refracting power and contribute to the energy by light is converged
Power concentrates on the second lens, and the scope that can increase light into image capture microscope group is to expand field of view angle.
There is 5th lens negative refracting power can correct the bending of image periphery, while being conducive to correcting Petzval conjunction number
(Petzval sum) is so that imaging surface becomes flat, and then lifts the image quality of off-axis visual field.6th is saturating
Mirror image side surface contributes to correcting for concave surface image marginal aberration further to lift image quality.Work as satisfaction
During specified conditions, the curvature of the first lens thing side surface contributes to making incident angle of light change more relax, energy
Avoid change in refraction excessively strong and produce excessive aberration.Additionally, contributing in the image side of image capture microscope group
Configuration refracting power positive enough captures the refracting power distribution of microscope group thing side and image side with balanced image, and then effectively contracts
The total length of short image capture microscope group, while increasing video imaging scope.In addition, can appropriately configured image pick
Take the light path trend of microscope group and while correct the astigmatism produced by the second lens.
The present invention provides a kind of image capture microscope group, by thing side to image side sequentially comprising one first lens, one the
Two lens, one the 3rd lens, one the 4th lens, one the 5th lens and one the 6th lens.Second lens have
Positive refracting power.3rd lens image side surface is concave surface, and its thing side surface and image side surface are all aspheric surface.The
Four lens image sides surface are convex surface, and its thing side surface and image side surface are all aspheric surface.5th lens have negative
Refracting power, its thing side surface are all aspheric surface with image side surface.6th lens image side surface be concave surface, its thing
Side surface is all aspheric surface with image side surface, and its thing side surface is had at least with an at least surface in the surface of image side
One point of inflexion.The lens of image capture microscope group are six.The focal length of image capture microscope group be f, the first lens
Focal length be f1, the focal length of the second lens is f2, and the radius of curvature of the first lens thing side surface is R1, its
Meet following condition：
-0.60<f/R1<0.80；And
-0.50<f2/f1<0.40。
The present invention a kind of image capture microscope group is separately provided, by thing side to image side sequentially comprising one first lens, one
Second lens, one the 3rd lens, one the 4th lens, one the 5th lens and one the 6th lens.Second lens have
There is positive refracting power.3rd lens thing side surface is all aspheric surface with image side surface.4th lens thing side surface with
Image side surface is all aspheric surface.5th lens have a negative refracting power, and its thing side surface is concave surface, its image side table
Face is convex surface, and its thing side surface is all aspheric surface with image side surface.6th lens image side surface is concave surface, its
Thing side surface is all aspheric surface with image side surface, and its thing side surface is had extremely with an at least surface in the surface of image side
Few point of inflexion.The lens of image capture microscope group are six.The focal length of image capture microscope group is f, and first is saturating
The focal length of mirror is f1, and the focal length of the second lens is f2, and the radius of curvature of the first lens thing side surface is R1,
Which meets following condition：
-0.60<f/R1<0.80；And
-0.50<f2/f1<0.40。
The present invention a kind of image capture microscope group is provided again, by thing side to image side sequentially comprising one first lens, one
Second lens, one the 3rd lens, one the 4th lens, one the 5th lens and one the 6th lens.Second lens have
There is positive refracting power.3rd lens image side surface is concave surface, and its thing side surface and image side surface are all aspheric surface.
4th lens thing side surface is all aspheric surface with image side surface.5th lens have negative refracting power, its thing side table
Face is all aspheric surface with image side surface.6th lens image side surface is concave surface, its thing side surface and image side surface
Aspheric surface is all, its thing side surface has an at least point of inflexion with an at least surface in the surface of image side.Image is picked
The lens for taking microscope group are six.The focal length of image capture microscope group is f, and the focal length of the first lens is f1, second
The focal length of lens is f2, and the radius of curvature of the first lens thing side surface is R1, the 3rd lens thing side surface
Radius of curvature is R5, and the radius of curvature on the 3rd lens image side surface is R6, and which meets following condition：
-0.60<f/R1<0.80；
-0.50<f2/f1<0.40；And
0<(R5+R6)/(R5-R6)。
The present invention separately provides a kind of image-taking device, and which includes aforesaid image capture microscope group and the photosensitive unit of electronics
Part, wherein electronics photo-sensitive cell are arranged on the imaging surface of image capture microscope group.
The present invention separately provides a kind of electronic installation, and which includes aforesaid image-taking device.
When f/R1 meets above-mentioned condition, the curvature of the first lens thing side surface contributes to making incident angle of light
Change more relaxes, and is avoided that change in refraction excessively produces excessive aberration strongly.
When f2/f1 meets above-mentioned condition, contribute to the image side configuration flexion positive enough in image capture microscope group
Power captures the refracting power distribution of microscope group thing side and image side with balanced image, and then effectively shortens image capture microscope group
Total length, while increase video imaging scope.
When (R5+R6)/(R5-R6) meets above-mentioned condition, can the light path of appropriately configured image capture microscope group walk
To and while correct the second lens produced by astigmatism.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as to the present invention's
Limit.
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 a kind of schematic diagram of the electronic installation according to the present invention；
Figure 18 illustrates the schematic diagram of another kind of electronic installation according to the present invention；
Figure 19 illustrates the schematic diagram of the still another electronic installation according to the present invention.
Wherein, reference
Capture Zhuan Zhi ︰ 10
Guang Quan ︰ 100,200,300,400,500,600,700,800
First Tou Jing ︰ 110,210,310,410,510,610,710,810
Thing Ce Biao Mian ︰ 111,211,311,411,511,611,711,811
As side surface ︰ 112,212,312,412,512,612,712,812
2nd saturating mirror ︰ 120,220,320,420,520,620,720,820
Thing Ce Biao Mian ︰ 121,221,321,421,521,621,721,821
As side surface ︰ 122,222,322,422,522,622,722,822
San Tou Jing ︰ 130,230,330,430,530,630,730,830
Thing Ce Biao Mian ︰ 131,231,331,431,531,631,731,831
As side surface ︰ 132,232,332,432,532,632,732,832
4th Tou Jing ︰ 140,240,340,440,540,640,740,840
Thing Ce Biao Mian ︰ 141,241,341,441,541,641,741,841
As side surface ︰ 142,242,342,442,542,642,742,842
5th Tou Jing ︰ 150,250,350,450,550,650,750,850
Thing Ce Biao Mian ︰ 151,251,351,451,551,651,751,851
As side surface ︰ 152,252,352,452,552,652,752,852
6th Tou Jing ︰ 160,260,360,460,560,660,760,860
Thing Ce Biao Mian ︰ 161,261,361,461,561,661,761,861
As side surface ︰ 162,262,362,462,562,662,762,862
Infrared ray filters optical element ︰ 170,270,370,470,570,670,770,870
Cheng Xiang Mian ︰ 180,280,380,480,580,680,780,880
Electronics photo-sensitive cell ︰ 190,290,390,490,590,690,790,890
CT2：Thickness of second lens on optical axis
CT6：Thickness of 6th lens on optical axis
The focal length of f ︰ image capture microscope groups
f1：The focal length of the first lens
f2：The focal length of the second lens
The focal length of the 6th lens of f6 ︰
The f-number of Fno ︰ image capture microscope groups
The half at maximum visual angle in HFOV ︰ image capture microscope groups
The maximum image height of ImgH ︰ image capture microscope groups
The first lens of Nmax ︰, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th are saturating
Maximum in the refractive index of mirror
The radius of curvature of R1 ︰ the first lens thing side surfaces
The radius of curvature on R2 ︰ the first lens image sides surface
The radius of curvature of R3 ︰ the second lens thing side surfaces
The radius of curvature on R4 ︰ the second lens image sides surface
The radius of curvature of the 3rd lens thing side surfaces of R5 ︰
The radius of curvature on the 3rd lens image side surfaces of R6 ︰
The radius of curvature of the 5th lens thing side surfaces of R9 ︰
The radius of curvature on the 5th lens image side surfaces of R10 ︰
Distance of the SD ︰ apertures to the 6th lens image side surface on optical axis
Distance of TD ︰ the first lens thing side surfaces to the 6th lens image side surface on optical axis
Distance of TL ︰ the first lens thing side surfaces to imaging surface on optical axis
T12：The spacing distance of first lens and the second lens on optical axis
T23：The spacing distance of second lens and the 3rd lens on optical axis
T34：The spacing distance of 3rd lens and the 4th lens on optical axis
T45：The spacing distance of 4th lens and the 5th lens on optical axis
T56：The spacing distance of 5th lens and the 6th lens on optical axis
V2：The abbe number of the second lens
V3：The abbe number of the 3rd lens
V5：The abbe number of the 5th lens
Specific embodiment
Below in conjunction with the accompanying drawings the structural principle and operation principle of the present invention are described in detail：
Image capture microscope group by thing side to image side sequentially comprising tool the first lens of refracting power, the second lens, the
Three lens, the 4th lens, the 5th lens and the 6th lens.The lens of image capture microscope group are six.
Wantonly two in first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens
Can be respectively provided with an airspace between adjacent lens on optical axis, that is, the first lens, the second lens, the 3rd
Lens, the 4th lens, the 5th lens and the 6th lens can be six single disengaged (non-bonding) lens.
As the more disengaged lens of the technique of cemented lens are complicated, high accuracy need to be possessed on the composition surface of two lens especially
Curved surface, to reach high adaptation when two lens are engaged, and during engagement, more likely because inclined
Position and cause to move axle defect, affect overall optical imagery quality.Therefore, first in image capture microscope group is saturating
Mirror can adopt six single disengaged lens configurations to the 6th lens, and then be effectively improved cemented lens institute
The problem of generation.
First lens thing side surface can have an at least point of inflexion with an at least surface in the surface of image side.Whereby,
Contribute to the aberration of modified off-axis visual field.
Second lens have positive refracting power, and its thing side surface can be convex surface.Whereby, contribute to image capture
Microscope group converges the ability of light and concentrates on the second lens, and can increase light into the scope of image capture microscope group
To expand field of view angle.
3rd lens can have negative refracting power, and its image side surface can be concave surface.Whereby, contribute to amendment first
Aberration produced by lens and the second lens is lifting image quality.
4th lens can have positive refracting power, and its thing side surface can be concave surface, and its image side surface can be convex surface.
Whereby, sensitivity is effectively reduced with amendment astigmatism to lift image quality.
5th lens have negative refracting power, and its thing side surface can be concave surface, and its image side surface can be convex surface.Borrow
This, can correct the aberrations such as image periphery bending, while being conducive to correcting Petzval conjunction number so that imaging surface becomes
It is flat, and then lift the image quality of off-axis visual field.
6th lens thing side surface in dipped beam axle can be convex surface, its image side surface be concave surface, its thing side surface with
In the surface of image side, an at least surface can have an at least point of inflexion.Whereby, contribute to correcting image marginal aberration
Further to lift image quality.
The focal length of image capture microscope group is f, and the radius of curvature of the first lens thing side surface is R1, under its satisfaction
Row condition：-0.60<f/R1<0.80.Whereby, the curvature of the first lens thing side surface contributes to making incident illumination
Refraction angle change more relaxes, and is avoided that change in refraction excessively strong and produces excessive aberration.It is preferred that
Which can further meet following condition：-0.50<f/R1<0.50.
The focal length of the first lens is f1, and the focal length of the second lens is f2, and which meets following condition：-0.50<f2/f1
<0.40.Whereby, contribute to picking with balanced image in the image side configuration refracting power positive enough of image capture microscope group
The refracting power distribution of microscope group thing side and image side, and then the effectively total length of shortening image capture microscope group are taken, while
Increase video imaging scope.It is preferred which can further meet following condition：-0.30<f2/f1<0.25.
The radius of curvature of the 3rd lens thing side surface is R5, and the radius of curvature on the 3rd lens image side surface is R6,
Which meets following condition：0<(R5+R6)/(R5-R6).Whereby, can appropriately configured image capture microscope group light
Move towards and while correct the astigmatism produced by the second lens in road.It is preferred which can further meet following bar
Part：1.0<(R5+R6)/(R5-R6).
Image capture microscope group can more include an aperture.Distance of the aperture to the 6th lens image side surface on optical axis
For SD, distance of the first lens thing side surface to the 6th lens image side surface on optical axis is TD, and which can be expired
Foot row condition：0.70<SD/TD<1.10.Whereby, the total length that can shorten image capture microscope group is simultaneously same
When maintain enough relative illuminations.
The focal length of image capture microscope group is f, and the radius of curvature of the first lens thing side surface is R1, the first lens
The radius of curvature on image side surface is R2, and which can meet following condition：|f/R1|+|f/R2|<1.10.Whereby,
Can appropriately configured first lens surface curvature, contribute to reduce aberration produce to lift image quality.
The abbe number of the second lens is V2, and the abbe number of the 3rd lens is V3, the dispersion of the 5th lens
Coefficient is V5, and which can meet following condition：(V3+V5)/V2<1.0.Whereby, contribute to correcting aberration.
The half at image capture microscope group maximum visual angle is HFOV, and which can meet following condition：38.0 [spending]<
HFOV<48.0 [spending].Whereby, visual angle can be avoided excessive and produces the problem of deformation of image.
Thickness of second lens on optical axis is CT2, and thickness of the 6th lens on optical axis is CT6, and which can
Meet following condition：0.80<CT6/CT2.Whereby, active balance system configuration is providing preferably aberration
Capability for correcting.
The abbe number of the 5th lens is V5, and which can meet following condition：V5<35.0.Whereby, help
Aberration effect is corrected in further being lifted.
Distance of the first lens thing side surface a to imaging surface on optical axis is TL, and image capture microscope group is most
Big imaging is highly ImgH (i.e. the half of effective sensing region diagonal overall length of electronics photo-sensitive cell), its
Following condition can be met：TL/ImgH<1.80.Whereby, be conducive to maintaining the miniaturization of image capture microscope group,
Which is made to be more suitable for being equipped on frivolous electronic installation.
The radius of curvature of the 5th lens thing side surface is R9, and the radius of curvature on the 5th lens image side surface is
R10, which can meet following condition：-0.4<(R9-R10)/(R9+R10)<0.Whereby, contribute to strengthening picture
Dissipate the effect of amendment.
The focal length of image capture microscope group is f, and the focal length of the first lens is f1, and the focal length of the 6th lens is f6,
Which can meet following condition：|f/f1|+|f/f6|<0.50.Whereby, contribute to balance the first lens thing side surface with
And the 6th lens image side surface curvature to avoid producing excessive aberration, while image capture microscope group can be lifted
Symmetry is effectively lifting image quality.
The spacing distance of first lens and the second lens on optical axis is T12, the second lens and the 3rd lens in
Spacing distance on optical axis is T23, and the spacing distance of the 3rd lens and the 4th lens on optical axis is T34,
The spacing distance of 4th lens and the 5th lens on optical axis is T45, and the 5th lens and the 6th lens are in optical axis
On spacing distance be T56, which can meet following condition：T23<T12<T34；T23<T12<T45；
T56<T12<T34；And T56<T12<T45.Whereby, spacing that can be between appropriately configured each lens,
Contribute to shortening the total length of image capture microscope group to maintain its miniaturization.
The radius of curvature of the second lens thing side surface is R3, and the radius of curvature on the second lens image side surface is R4,
Which can meet following condition：(R3+R4)/(R3-R4)<0.0.Whereby, contribute to being lifted spherical aberration with astigmatism
Correction effect.
The refraction of the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens
Maximum in rate is Nmax, and which can meet following condition：Nmax<1.70.Whereby, suitably can allocate
The refractive index of each lens, makes optical system tool more accurately focusing power.
Distance of the first lens thing side surface a to imaging surface on optical axis is TL, and which can meet following condition：
TL<8.0 millimeter.Whereby, contribute to shortening the total length of image capture microscope group to maintain its miniaturization.
In first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens, the
The refracting power of two lens can be for (refracting power of lens out of the ordinary be image capture microscope group focal length divided by out of the ordinary saturating most by force
The numerical value of mirror focal length, stronger refracting power represent that the numerical value has larger value under absolute value).That is,
The refracting power absolute value of the second lens is more than the first lens, the 3rd lens, the 4th lens, the 5th lens and the
The refracting power absolute value of six lens.Whereby, it can be ensured that the second lens have the positive refracting power of sufficient intensity, and
Field of view angle can effectively be expanded and shorten the total length of image capture microscope group.
The invention discloses image capture microscope group in, the configuration of aperture can be 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 the first lens and imaging surface.If aperture is preposition aperture, the outgoing pupil (Exit of image capture microscope group can be made
Pupil) longer distance is produced with imaging surface so as to telecentricity (Telecentric) effect, and can increase electricity
The CCD or CMOS of sub- photo-sensitive cell receives the efficiency of image；If in put aperture, contribute to expand shadow
The angle of visual field as capturing microscope group, makes image capture microscope group have the advantage of wide-angle lens.
The invention discloses image capture microscope group in, the material of lens can be plastic cement or glass.When the material of lens
Matter is glass, can increase the degree of freedom of refracting power configuration.Separately when lens material is plastic cement, then can be effective
Reduce production cost.Additionally, aspheric surface (ASP) can be arranged on lens surface, aspheric surface easily can be made
The shape being made beyond sphere, obtains more controlled variable, to cut down aberration, and then makes needed for reducing
With the number of lens, therefore can effectively reduce optics total length.
The invention discloses image capture microscope group in, if lens surface is convex surface and not define the convex surface position
When, then it represents that the lens surface is convex surface at dipped beam axle；If lens surface is concave surface and does not define the concave surface
During position, then it represents that the lens surface is concave surface at dipped beam axle.If the refracting power of lens or focal length are not defined
During its regional location, then it represents that the refracting power or focal length of the lens is refracting power or Jiao of the lens at dipped beam axle
Away from.
The invention discloses image capture microscope group in, the imaging surface (Image Surface) of image capture microscope group according to
The difference of its corresponding electronics photo-sensitive cell can be a plane or have the curved surface of arbitrary curvature, particularly relate to recessed
Face toward thing side to curved surface.
The invention discloses image capture microscope group in, an at least diaphragm can be provided with, its position may be disposed at
Before one lens, 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., to reduce veiling glare, contribute to lifting image quality.
The present invention more provides a kind of image-taking device, and which includes aforementioned image capture microscope group and the photosensitive unit of electronics
Part, wherein electronics photo-sensitive cell are arranged on the imaging surface of image capture microscope group.It is preferred that the capture dress
Put and can further include lens barrel (Barrel Member), support device (Holding Member) or its combination.
Refer to Figure 17, Figure 18 and Figure 19, image-taking device 10 can many-side be applied to intelligent mobile phone (such as
Shown in Figure 17), tablet PC (as shown in figure 18) and Wearable device (as shown in figure 19) etc..Preferably
Ground, electronic installation can further include control unit (Control Units), display unit (Display Units),
Storage element (Storage Units), temporary storage element (RAM) or its combination.
The more visual demand of image capture 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 also can many-side 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 recorder, reversing developing unit, 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 is illustrated and illustrated according to the image-taking device of first embodiment of the invention
Figure, Fig. 2 are sequentially spherical aberration, astigmatism and the distortion curve figure of first embodiment from left to right.By Fig. 1
Understand, image-taking device includes image capture microscope group (not another label) and electronics photo-sensitive cell 190.Image capture
Microscope group is sequentially saturating comprising the first lens 110, aperture 100, the second lens the 120, the 3rd by thing side to image side
Mirror 130, the 4th lens 140, the 5th lens 150, the 6th lens 160, infrared ray filter filter element (IR-cut
Filter) 170 with imaging surface 180.Wherein, electronics photo-sensitive cell 190 is arranged on imaging surface 180.Image
The lens (110-160) for capturing microscope group are six.First lens 110, the second lens 120, the 3rd lens 130,
Have on optical axis between wantonly two adjacent lens in 4th lens 140, the 5th lens 150 and the 6th lens 160
There is an airspace.
First lens 110 have positive refracting power, and are plastic cement material, and its thing side surface 111 is convex surface, its
Image side surface 112 is convex surface, and its two surface is all aspheric surface, and its thing side surface 111 has the point of inflexion.
Second lens 120 have positive refracting power, and are plastic cement material, and its thing side surface 121 is convex surface, its
Image side surface 122 is concave surface, and its two surface 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, its
Image side surface 132 is concave surface, and its two surface 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, its
Image side surface 142 is convex surface, and its two surface is all aspheric surface.
5th lens 150 have negative refracting power, and are plastic cement material, and its thing side surface 151 is concave surface, its
Image side surface 152 is convex surface, and its two surface is all aspheric surface.
6th lens 160 have positive refracting power, and are plastic cement material, and its thing side surface 161 is convex surface, its
Image side surface 162 is concave surface, and its two surface is all aspheric surface, its thing side surface 161 and image side surface 162
All there is the point of inflexion.
It is glass that infrared ray filters the material of filter element 170, and which is arranged at the 6th lens 160 and imaging surface
Between 180, the focal length of image capture microscope group is had no effect on.
The aspheric fitting equation of above-mentioned each lens is expressed as follows：
；Wherein：
X：In aspheric surface apart from optical axis for Y point, its be tangential on the tangent plane of intersection point on aspheric surface optical axis
Relative distance；
Y：The vertical dimension of point and optical axis in aspheric curve；
R：Radius of curvature；
k：Conical surface coefficient；And
Ai：I-th rank asphericity coefficients.
In the image capture microscope group of first embodiment, the focal length of image capture microscope group is f, image capture microscope group
F-number (F-number) be Fno, in image capture microscope group, the half at maximum visual angle is HFOV, its number
Value is as follows：F=3.74 millimeters (mm), Fno=2.60, HFOV=38.3 degree (deg.).
First lens 110, the second lens 120, the 3rd lens 130, the 4th lens 140, the 5th lens
150 and the 6th lens 160 refractive index in maximum be Nmax, which meets following condition：Nmax=
1.661。
The abbe number of the 5th lens 150 is V5, and which meets following condition：V5=20.4.
The abbe number of the second lens 120 is V2, and the abbe number of the 3rd lens 130 is V3, and the 5th is saturating
The abbe number of mirror 150 is V5, and which meets following condition：(V3+V5)/V2=0.73.
Thickness of second lens 120 on optical axis is CT2, and the 6th lens 160 in the thickness on optical axis are
CT6, which meets following condition：CT6/CT2=1.850.
The focal length of image capture microscope group is f, and the radius of curvature of the first lens thing side surface 111 is R1, and which is full
Foot row condition：F/R1=0.13.
The focal length of image capture microscope group is f, and the radius of curvature of the first lens thing side surface 111 is R1, first
The radius of curvature on lens image side surface 112 is R2, and which meets following condition：| f/R1 |+| f/R2 |=0.27.
The radius of curvature of the second lens thing side surface 121 be R3, the curvature on the second lens image side surface 122
Radius is R4, and which meets following condition：(R3+R4)/(R3-R4)=- 1.26.
The radius of curvature of the 3rd lens thing side surface 131 be R5, the curvature on the 3rd lens image side surface 132
Radius is R6, and which meets following condition：(R5+R6)/(R5-R6)=4.32.
The radius of curvature of the 5th lens thing side surface 151 be R9, the curvature on the 5th lens image side surface 152
Radius is R10, and which meets following condition：(R9-R10)/(R9+R10)=- 0.17.
The focal length of the first lens 110 is f1, and the focal length of the second lens 120 is f2, and which meets following condition：
F2/f1=0.14.
The focal length of image capture microscope group is f, and the focal length of the first lens 110 is f1, Jiao of the 6th lens 160
Away from for f6, which meets following condition：| f/f1 |+| f/f6 |=0.20.
Distance of 100 to the 6th lens image side surface 162 of aperture on optical axis be SD, the first lens thing side
Distance of 111 to the 6th lens image side surface 162 of surface on optical axis is TD, and which meets following condition：
SD/TD=0.83.
Distance of the first lens thing side surface 111 to imaging surface 180 on optical axis be TL, image acquisition lens
The maximum image height of group is ImgH, and which meets following condition：TL/ImgH=1.74.
Distance of the first lens thing side surface 111 to imaging surface 180 on optical axis is TL, and which meets following
Condition：TL=5.33 millimeters.
First lens 110, the second lens 120, the 3rd lens 130, the 4th lens 140, the 5th lens
150 and the 6th lens 160 refracting power in the middle of, wherein most strong with the refracting power of the second lens 120.
Coordinate with reference to following table one and table two.
Table one is the detailed structured data of Fig. 1 first embodiments, the wherein list of radius of curvature, thickness and focal length
Position is millimeter (mm), and surface 0 to 16 sequentially represented by the surface of thing side to image side.Table two is first real
The aspherical surface data in example is applied, wherein, k is the conical surface coefficient in aspheric curve equation, A4 to A16
The 4 to 16th rank asphericity coefficients of each surface are represented then.Additionally, following embodiment form is each reality of correspondence
The schematic diagram and aberration curve figure of example are applied, table one and table two of the definition of data all with first embodiment in form
Definition it is identical, not in this to go forth.
<Second embodiment>
Fig. 3 and Fig. 4 is refer to, wherein Fig. 3 is illustrated and illustrated according to the image-taking device of second embodiment of the invention
Figure, Fig. 4 are sequentially spherical aberration, astigmatism and the distortion curve figure of second embodiment from left to right.By Fig. 3
Understand, image-taking device includes image capture microscope group (not another label) and electronics photo-sensitive cell 290.Image capture
Microscope group is sequentially saturating comprising the first lens 210, aperture 200, the second lens the 220, the 3rd by thing side to image side
Mirror 230, the 4th lens 240, the 5th lens 250, the 6th lens 260, infrared ray filter filter element
270 with imaging surface 280.Wherein, electronics photo-sensitive cell 290 is arranged on imaging surface 280.Image capture
The lens (210-260) of microscope group are six.First lens 210, the second lens 220, the 3rd lens 230,
Have on optical axis between wantonly two adjacent lens in 4th lens 240, the 5th lens 250 and the 6th lens 260
There is an airspace.
First lens 210 have positive refracting power, and are plastic cement material, and its thing side surface 211 is convex surface, its
Image side surface 212 is convex surface, and its two surface is all aspheric surface, and its thing side surface 211 has the point of inflexion.
Second lens 220 have positive refracting power, and are plastic cement material, and its thing side surface 221 is convex surface, its
Image side surface 222 is concave surface, and its two surface 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, its
Image side surface 232 is concave surface, and its two surface is all aspheric surface.
4th lens 240 have positive refracting power, and are plastic cement material, and its thing side surface 241 is convex surface, its
Image side surface 242 is convex surface, and its two surface is all aspheric surface.
5th lens 250 have negative refracting power, and are plastic cement material, and its thing side surface 251 is concave surface, its
Image side surface 252 is convex surface, and its two surface is all aspheric surface.
6th lens 260 have positive refracting power, and are plastic cement material, and its thing side surface 261 is convex surface, its
Image side surface 262 is concave surface, and its two surface is all aspheric surface, its thing side surface 261 and image side surface 262
All there is the point of inflexion.
It is glass that infrared ray filters the material of filter element 270, and which is arranged at the 6th lens 260 and imaging surface
Between 280, the focal length of image capture microscope group is had no effect on.
Please coordinate with reference to following table three and table four.
In second embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, 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 is illustrated and illustrated according to the image-taking device of third embodiment of the invention
Figure, Fig. 6 are sequentially spherical aberration, astigmatism and the distortion curve figure of 3rd embodiment from left to right.By Fig. 5
Understand, image-taking device includes image capture microscope group (not another label) and electronics photo-sensitive cell 390.Image capture
Microscope group is sequentially saturating comprising aperture 300, the first lens 310, the second lens the 320, the 3rd by thing side to image side
Mirror 330, the 4th lens 340, the 5th lens 350, the 6th lens 360, infrared ray filter filter element
370 with imaging surface 380.Wherein, electronics photo-sensitive cell 390 is arranged on imaging surface 380.Image capture
The lens (310-360) of microscope group are six.First lens 310, the second lens 320, the 3rd lens 330,
Have on optical axis between wantonly two adjacent lens in 4th lens 340, the 5th lens 350 and the 6th lens 360
There is an airspace.
First lens 310 have positive refracting power, and are plastic cement material, and its thing side surface 311 is convex surface, its
Image side surface 312 is concave surface, and its two surface is all aspheric surface, its thing side surface 311 and image side surface 312
All there is the point of inflexion.
Second lens 320 have positive refracting power, and are plastic cement material, and its thing side surface 321 is convex surface, its
Image side surface 322 is convex surface, and its two surface 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, its
Image side surface 332 is concave surface, and its two surface is all aspheric surface.
4th lens 340 have positive refracting power, and are plastic cement material, and its thing side surface 341 is concave surface, its
Image side surface 342 is convex surface, and its two surface is all aspheric surface.
5th lens 350 have negative refracting power, and are plastic cement material, and its thing side surface 351 is concave surface, its
Image side surface 352 is convex surface, and its two surface is all aspheric surface.
6th lens 360 have positive refracting power, and are plastic cement material, and its thing side surface 361 is convex surface, its
Image side surface 362 is concave surface, and its two surface is all aspheric surface, its thing side surface 361 and image side surface 362
All there is the point of inflexion.
It is glass that infrared ray filters the material of filter element 370, and which is arranged at the 6th lens 360 and imaging surface
Between 380, the focal length of image capture microscope group is had no effect on.
First lens 310, the second lens 320, the 3rd lens 330, the 4th lens 340, the 5th lens
350 and the 6th lens 360 refracting power in the middle of, wherein most strong with the refracting power of the second lens 320.
Please coordinate with reference to following table five and table six.
In 3rd embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, 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 is illustrated and illustrated according to the image-taking device of fourth embodiment of the invention
Figure, Fig. 8 are sequentially spherical aberration, astigmatism and the distortion curve figure of fourth embodiment from left to right.By Fig. 7
Understand, image-taking device includes image capture microscope group (not another label) and electronics photo-sensitive cell 490.Image capture
Microscope group is sequentially saturating comprising aperture 400, the first lens 410, the second lens the 420, the 3rd by thing side to image side
Mirror 430, the 4th lens 440, the 5th lens 450, the 6th lens 460, infrared ray filter filter element
470 with imaging surface 480.Wherein, electronics photo-sensitive cell 490 is arranged on imaging surface 480.Image capture
The lens (410-460) of microscope group are six.First lens 410, the second lens 420, the 3rd lens 430,
Have on optical axis between wantonly two adjacent lens in 4th lens 440, the 5th lens 450 and the 6th lens 460
There is an airspace.
First lens 410 have negative refracting power, and are plastic cement material, and its thing side surface 411 is concave surface, its
Image side surface 412 is concave surface, and its two surface is all aspheric surface, and its image side surface 312 has the point of inflexion.
Second lens 420 have positive refracting power, and are plastic cement material, and its thing side surface 421 is convex surface, its
Image side surface 422 is convex surface, and its two surface is all aspheric surface.
3rd lens 430 have negative refracting power, and are plastic cement material, and its thing side surface 431 is convex surface, its
Image side surface 432 is concave surface, and its two surface 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, its
Image side surface 442 is convex surface, and its two surface 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, its
Image side surface 452 is convex surface, and its two surface is all aspheric surface.
6th lens 460 have negative refracting power, and are plastic cement material, and its thing side surface 461 is convex surface, its
Image side surface 462 is concave surface, and its two surface is all aspheric surface, its thing side surface 461 and image side surface 462
All there is the point of inflexion.
It is glass that infrared ray filters the material of filter element 470, and which is arranged at the 6th lens 460 and imaging surface
Between 480, the focal length of image capture microscope group is had no effect on.
First lens 410, the second lens 420, the 3rd lens 430, the 4th lens 440, the 5th lens
450 and the 6th lens 460 refracting power in the middle of, wherein most strong with the refracting power of the second lens 420.
Please coordinate with reference to following table seven and table eight.
In fourth embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, 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 and 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 image capture microscope group (not another label) and electronics photo-sensitive cell 590.Image is picked
Take microscope group and the first lens 510, aperture 500, the second lens the 520, the 3rd are sequentially included by thing side to image side
Lens 530, the 4th lens 540, the 5th lens 550, the 6th lens 560, infrared ray filter filter element
570 with imaging surface 580.Wherein, electronics photo-sensitive cell 590 is arranged on imaging surface 580.Image capture
The lens (510-560) of microscope group are six.First lens 510, the second lens 520, the 3rd lens 530,
Have on optical axis between wantonly two adjacent lens in 4th lens 540, the 5th lens 550 and the 6th lens 560
There is an airspace.
First lens 510 have negative refracting power, and are plastic cement material, and its thing side surface 511 is concave surface, its
Image side surface 512 is concave surface, and its two surface is all aspheric surface, and its image side surface 512 has the point of inflexion.
Second lens 520 have positive refracting power, and are plastic cement material, and its thing side surface 521 is convex surface, its
Image side surface 522 is convex surface, and its two surface is all aspheric surface.
3rd lens 530 have negative refracting power, and are plastic cement material, and its thing side surface 531 is convex surface, its
Image side surface 532 is concave surface, and its two surface 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, its
Image side surface 542 is convex surface, and its two surface is all aspheric surface.
5th lens 550 have negative refracting power, and are plastic cement material, and its thing side surface 551 is concave surface, its
Image side surface 552 is convex surface, and its two surface is all aspheric surface.
6th lens 560 have negative refracting power, and are plastic cement material, and its thing side surface 561 is convex surface, its
Image side surface 562 is concave surface, and its two surface is all aspheric surface, its thing side surface 561 and image side surface 562
All there is the point of inflexion.
It is glass that infrared ray filters the material of filter element 570, and which is arranged at the 6th lens 560 and imaging surface
Between 580, the focal length of image capture microscope group is had no effect on.
First lens 510, the second lens 520, the 3rd lens 530, the 4th lens 540, the 5th lens
550 and the 6th lens 560 refracting power in the middle of, wherein most strong with the refracting power of the second lens 520.
Please coordinate with reference to following table nine and table ten.
In 5th embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, 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 are 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 image capture microscope group (not another label) and electronics photo-sensitive cell 690.Image
Capture microscope group by thing side to image side sequentially comprising the first lens 610, aperture 600, the second lens 620, the
Three lens 630, the 4th lens 640, the 5th lens 650, the 6th lens 660, infrared ray filter optical filtering unit
Part 670 and imaging surface 680.Wherein, electronics photo-sensitive cell 690 is arranged on imaging surface 680.Image is picked
The lens (610-660) for taking microscope group are six.First lens 610, the second lens 620, the 3rd lens 630,
Have on optical axis between wantonly two adjacent lens in 4th lens 640, the 5th lens 650 and the 6th lens 660
There is an airspace.
First lens 610 have negative refracting power, and are plastic cement material, and its thing side surface 611 is convex surface, its
Image side surface 612 is concave surface, and its two surface is all aspheric surface, its thing side surface 611 and image side surface 612
All there is the point of inflexion.
Second lens 620 have positive refracting power, and are plastic cement material, and its thing side surface 621 is convex surface, its
Image side surface 622 is convex surface, and its two surface 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, its
Image side surface 632 is concave surface, and its two surface is all aspheric surface.
4th lens 640 have negative refracting power, and are plastic cement material, and its thing side surface 641 is concave surface, its
Image side surface 642 is convex surface, and its two surface is all aspheric surface.
5th lens 650 have negative refracting power, and are plastic cement material, and its thing side surface 651 is concave surface, its
Image side surface 652 is convex surface, and its two surface is all aspheric surface.
6th lens 660 have positive refracting power, and are plastic cement material, and its thing side surface 661 is convex surface, its
Image side surface 662 is concave surface, and its two surface is all aspheric surface, its thing side surface 661 and image side surface 662
All there is the point of inflexion.
It is glass that infrared ray filters the material of filter element 670, and which is arranged at the 6th lens 660 and imaging surface
Between 680, the focal length of image capture microscope group is had no effect on.
First lens 610, the second lens 620, the 3rd lens 630, the 4th lens 640, the 5th lens
650 and the 6th lens 660 refracting power in the middle of, wherein most strong with the refracting power of the second lens 620.
Please coordinate with reference to following table 11 and table 12.
In sixth embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, 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 are 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 image capture microscope group (not another label) and electronics photo-sensitive cell 790.Image
Capture microscope group by thing side to image side sequentially comprising the first lens 710, aperture 700, the second lens 720, the
Three lens 730, the 4th lens 740, the 5th lens 750, the 6th lens 760, infrared ray filter optical filtering unit
Part 770 and imaging surface 780.Wherein, electronics photo-sensitive cell 790 is arranged on imaging surface 780.Image is picked
The lens (710-760) for taking microscope group are six.First lens 710, the second lens 720, the 3rd lens 730,
Have on optical axis between wantonly two adjacent lens in 4th lens 740, the 5th lens 750 and the 6th lens 760
There is an airspace.
First lens 710 have positive refracting power, and are plastic cement material, and its thing side surface 711 is convex surface, its
Image side surface 712 is convex surface, and its two surface is all aspheric surface, and its thing side surface 711 has the point of inflexion.
Second lens 720 have positive refracting power, and are plastic cement material, and its thing side surface 721 is convex surface, its
Image side surface 722 is convex surface, and its two surface is all aspheric surface.
3rd lens 730 have negative refracting power, and are plastic cement material, and its thing side surface 731 is convex surface, its
Image side surface 732 is concave surface, and its two surface is all aspheric surface.
4th lens 740 have positive refracting power, and are plastic cement material, and its thing side surface 741 is concave surface, its
Image side surface 742 is convex surface, and its two surface is all aspheric surface.
5th lens 750 have negative refracting power, and are plastic cement material, and its thing side surface 751 is concave surface, its
Image side surface 752 is convex surface, and its two surface is all aspheric surface.
6th lens 760 have negative refracting power, and are plastic cement material, and its thing side surface 761 is convex surface, its
Image side surface 762 is concave surface, and its two surface is all aspheric surface, its thing side surface 761 and image side surface 762
All there is the point of inflexion.
It is glass that infrared ray filters the material of filter element 770, and which is arranged at the 6th lens 760 and imaging surface
Between 780, the focal length of image capture microscope group is had no effect on.
First lens 710, the second lens 720, the 3rd lens 730, the 4th lens 740, the 5th lens
750 and the 6th lens 760 refracting power in the middle of, wherein most strong with the refracting power of the second lens 720.
Please coordinate with reference to following table 13 and table 14.
In 7th embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, 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 are 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 image capture microscope group (not another label) and electronics photo-sensitive cell 890.Image
Capture microscope group by thing side to image side sequentially comprising the first lens 810, aperture 800, the second lens 820, the
Three lens 830, the 4th lens 840, the 5th lens 850, the 6th lens 860, infrared ray filter optical filtering unit
Part 870 and imaging surface 880.Wherein, electronics photo-sensitive cell 890 is arranged on imaging surface 880.Image is picked
The lens (810-860) for taking microscope group are six.First lens 810, the second lens 820, the 3rd lens 830,
Have on optical axis between wantonly two adjacent lens in 4th lens 840, the 5th lens 850 and the 6th lens 860
There is an airspace.
First lens 810 have negative refracting power, and are plastic cement material, and its thing side surface 811 is convex surface, its
Image side surface 812 is concave surface, and its two surface is all aspheric surface, its thing side surface 811 and image side surface 812
All there is the point of inflexion.
Second lens 820 have positive refracting power, and are plastic cement material, and its thing side surface 821 is convex surface, its
Image side surface 822 is concave surface, and its two surface is all aspheric surface.
3rd lens 830 have positive refracting power, and are plastic cement material, and its thing side surface 831 is convex surface, its
Image side surface 832 is concave surface, and its two surface 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, its
Image side surface 842 is convex surface, and its two surface is all aspheric surface.
5th lens 850 have negative refracting power, and are plastic cement material, and its thing side surface 851 is concave surface, its
Image side surface 852 is convex surface, and its two surface is all aspheric surface.
6th lens 860 have negative refracting power, and are plastic cement material, and its thing side surface 861 is convex surface, its
Image side surface 862 is concave surface, and its two surface is all aspheric surface, its thing side surface 861 and image side surface 862
With the point of inflexion.
It is glass that infrared ray filters the material of filter element 870, and which is arranged at the 6th lens 860 and imaging surface
Between 880, the focal length of image capture microscope group is had no effect on.
Please coordinate with reference to following table 15 and table 16.
In 8th embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
Above-mentioned image-taking device can be equipped in electronic installation.Image acquisition lens of the present invention using six-element lens
Group.Second lens have positive refracting power, contribute to for the ability for converging light concentrating on the second lens, and can increase
Plus light enters the scope of image capture microscope group to expand field of view angle.5th lens have negative refracting power, can
The aberrations such as amendment image periphery bending, while being conducive to correcting Petzval closes number so that imaging surface becomes flat,
And then lift the image quality of off-axis visual field.6th lens image side surface is concave surface, contributes to correcting image week
Side aberration is further lifting image quality.When a specific condition is satisfied, the curvature of the first lens thing side surface
Contribute to making incident angle of light change more relax, be avoided that change in refraction excessively produces excessive picture strongly
Difference.Additionally, contributing to configuring refracting power positive enough with balanced image capture lens in the image side of image capture microscope group
The refracting power distribution of group thing side and image side, and then the total length of image capture microscope group is effectively reduced, while increasing
Video imaging scope.In addition, can the light path of appropriately configured image capture microscope group move towards and correct the second lens
Produced astigmatism.In sum, disclosed herein image capture microscope group can meet simultaneously miniaturization,
The demand of wide viewing angle and good lens error correction ability.
Although the present invention is disclosed above with embodiment, so which is not limited to the present invention, any to be familiar with
This those skilled in the art, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations, therefore
Protection scope of the present invention ought be defined depending on the scope of which is defined in the appended claims.
Claims (29)
1. a kind of image capture microscope group, it is characterised in that sequentially included to image side by thing side：
One first lens；
One second lens, with positive refracting power；
One the 3rd lens, its image side surface are concave surface, and its thing side surface and image side surface are all aspheric surface；
One the 4th lens, its image side surface are convex surface, and its thing side surface and image side surface are all aspheric surface；
One the 5th lens, with negative refracting power, its thing side surface is all aspheric surface with image side surface；And
One the 6th lens, its image side surface is concave surface, and its thing side surface and image side surface are all aspheric surface, its
Thing side surface has an at least point of inflexion with an at least surface in the surface of image side；
Wherein, the lens of the image capture microscope group are six, and the focal length of the image capture microscope group is f, and this
The focal length of one lens is f1, and the focal length of second lens is f2, and the curvature of the first lens thing side surface is partly
Footpath is R1, and which meets following condition：
-0.60<f/R1<0.80；And
-0.50<f2/f1<0.40。
2. image capture microscope group according to claim 1, it is characterised in that the 3rd lens have
Negative refracting power.
3. image capture microscope group according to claim 1, it is characterised in that the second lens thing side
Surface is convex surface.
4. image capture microscope group according to claim 1, it is characterised in that the 4th lens thing side
Surface is concave surface.
5. image capture microscope group according to claim 1, it is characterised in that further include an aperture,
Wherein first lens, second lens, the 3rd lens, the 4th lens, the 5th lens and this
An airspace is respectively provided with optical axis between wantonly two adjacent lens in six lens, the aperture is to the 6th lens picture
Distance of the side surface on optical axis be SD, the first lens thing side surface to the 6th lens image side surface in
Distance on optical axis is TD, and which meets following condition：
0.70<SD/TD<1.10。
6. image capture microscope group according to claim 1, it is characterised in that the image capture microscope group
Focal length be f, the radius of curvature of the first lens thing side surface is R1, the song on the first lens image side surface
Rate radius is R2, and which meets following condition：
|f/R1|+|f/R2|<1.10。
7. image capture microscope group according to claim 1, it is characterised in that the color of second lens
Scattered coefficient is V2, and the abbe number of the 3rd lens is V3, and the abbe number of the 5th lens is V5, its
Meet following condition：
(V3+V5)/V2<1.0。
8. image capture microscope group according to claim 1, it is characterised in that the image capture microscope group
Focal length be f, the radius of curvature of the first lens thing side surface is R1, and which meets following condition：
-0.50<f/R1<0.50。
9. image capture microscope group according to claim 1, it is characterised in that the image capture microscope group
The half at maximum visual angle is HFOV, and which meets following condition：
38.0 degree<HFOV<48.0 degree.
10. image capture microscope group according to claim 1, it is characterised in that second lens are in light
Thickness on axle is CT2, and thickness of the 6th lens on optical axis is CT6, and which meets following condition：
0.80<CT6/CT2。
11. a kind of image capture microscope groups, it is characterised in that sequentially included to image side by thing side：
One first lens；
One second lens, with positive refracting power；
One the 3rd lens, its thing side surface are all aspheric surface with image side surface；
One the 4th lens, its thing side surface are all aspheric surface with image side surface；
One the 5th lens, with negative refracting power, its thing side surface is concave surface, and its image side surface is convex surface, its
Thing side surface is all aspheric surface with image side surface；And
One the 6th lens, its image side surface is concave surface, and its thing side surface and image side surface are all aspheric surface, its
Thing side surface has an at least point of inflexion with an at least surface in the surface of image side；
Wherein, the lens of the image capture microscope group are six, and the focal length of the image capture microscope group is f, and this
The focal length of one lens is f1, and the focal length of second lens is f2, and the curvature of the first lens thing side surface is partly
Footpath is R1, and which meets following condition：
-0.60<f/R1<0.80；And
-0.50<f2/f1<0.40。
12. image capture microscope groups according to claim 11, it is characterised in that the second lens thing
Side surface is convex surface, and the 6th lens thing side surface is convex surface.
13. image capture microscope groups according to claim 11, it is characterised in that the 4th lens have
There is positive refracting power.
14. image capture microscope groups according to claim 11, 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.
15. image capture microscope groups according to claim 11, it is characterised in that the 5th lens
Abbe number is V5, and which meets following condition：
V5<35.0。
16. image capture microscope groups according to claim 11, it is characterised in that first lens,
Second lens, the 3rd lens, the 4th lens, the 5th lens are adjacent with the 6th lens wantonly two
An airspace is respectively provided with optical axis between lens, the first lens thing side surface a to imaging surface is on optical axis
Distance be TL, the maximum image height of the image capture microscope group is ImgH, and which meets following condition：
TL/ImgH<1.80。
17. image capture microscope groups according to claim 11, it is characterised in that the 5th lens thing
The radius of curvature of side surface is R9, and the radius of curvature on the 5th lens image side surface is R10, and which meets following
Condition：
-0.4<(R9-R10)/(R9+R10)<0。
18. image capture microscope groups according to claim 11, it is characterised in that the image acquisition lens
The focal length of group is f, and the focal length of first lens is f1, and the focal length of the 6th lens is f6, under its satisfaction
Row condition：
|f/f1|+|f/f6|<0.50。
19. image capture microscope groups according to claim 11, it is characterised in that first lens with
The spacing distance of second lens on optical axis is T12, and second lens are with the 3rd lens on optical axis
Spacing distance is T23, and the 3rd lens are T34 with spacing distance of the 4th lens on optical axis, and this
Four lens and spacing distance of the 5th lens on optical axis are T45, the 5th lens and the 6th lens in
Spacing distance on optical axis is T56, and which meets following condition：
T23<T12<T34；
T23<T12<T45；
T56<T12<T34；And
T56<T12<T45。
20. a kind of image capture microscope groups, it is characterised in that sequentially included to image side by thing side：
One first lens；
One second lens, with positive refracting power；
One the 3rd lens, its image side surface are concave surface, and its thing side surface and image side surface are all aspheric surface；
One the 4th lens, its thing side surface are all aspheric surface with image side surface；
One the 5th lens, with negative refracting power, its thing side surface is all aspheric surface with image side surface；And
One the 6th lens, its image side surface is concave surface, and its thing side surface and image side surface are all aspheric surface, its
Thing side surface has an at least point of inflexion with an at least surface in the surface of image side；
Wherein, the lens of the image capture microscope group are six, and the focal length of the image capture microscope group is f, and this
The focal length of one lens is f1, and the focal length of second lens is f2, and the curvature of the first lens thing side surface is partly
Footpath is R1, and the radius of curvature of the 3rd lens thing side surface is R5, the curvature on the 3rd lens image side surface
Radius is R6, and which meets following condition：
-0.60<f/R1<0.80；
-0.50<f2/f1<0.40；And
0<(R5+R6)/(R5-R6)。
21. image capture microscope groups according to claim 20, 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 which meets following
Condition：
1.0<(R5+R6)/(R5-R6)。
22. image capture microscope groups according to claim 20, it is characterised in that the image acquisition lens
The focal length of group is f, and the radius of curvature of the first lens thing side surface is R1, the first lens image side surface
Radius of curvature is R2, and which meets following condition：
|f/R1|+|f/R2|<1.10。
23. image capture microscope groups according to claim 20, it is characterised in that first lens
Focal length is f1, and the focal length of second lens is f2, and which meets following condition：
-0.30<f2/f1<0.25。
24. image capture microscope groups according to claim 20, it is characterised in that the second lens thing
The radius of curvature of side surface is R3, and the radius of curvature on the second lens image side surface is R4, and which meets following
Condition：
(R3+R4)/(R3-R4)<0.0。
25. image capture microscope groups according to claim 20, it is characterised in that second lens in
Thickness on optical axis is CT2, and thickness of the 6th lens on optical axis is CT6, and which meets following condition：
0.80<CT6/CT2。
26. image capture microscope groups according to claim 20, it is characterised in that first lens,
Second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens are all plastic cement material
Matter, first lens, second lens, the 3rd lens, the 4th lens, the 5th lens and this
Maximum in the refractive index of six lens is Nmax, and the first lens thing side surface a to imaging surface is in optical axis
On distance be TL, which meets following condition：
Nmax<1.70；And
TL<8.0 millimeter.
27. image capture microscope groups according to claim 20, it is characterised in that first lens,
In second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens, this second
The refracting power of lens is most strong.
28. a kind of image-taking devices, it is characterised in that include：
Image capture microscope group as claimed in claim 20；And
One electronics photo-sensitive cell, wherein the electronics photo-sensitive cell are arranged at an imaging surface of the image capture microscope group
On.
29. a kind of electronic installations, it is characterised in that include：
Image-taking device as claimed in claim 28.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811042005.5A CN108983397B (en) | 2015-09-23 | 2015-09-23 | Image capturing lens assembly and image capturing device |
| CN201811035781.2A CN108828751B (en) | 2015-09-23 | 2015-09-23 | Image capturing lens assembly and image capturing device |
| CN201510610695.XA CN106547070B (en) | 2015-09-23 | 2015-09-23 | Image capture microscope group, image-taking device and electronic device |
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| CN201510610695.XA CN106547070B (en) | 2015-09-23 | 2015-09-23 | Image capture microscope group, image-taking device and electronic device |
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| CN201811042005.5A Division CN108983397B (en) | 2015-09-23 | 2015-09-23 | Image capturing lens assembly and image capturing device |
| CN201811035781.2A Division CN108828751B (en) | 2015-09-23 | 2015-09-23 | Image capturing lens assembly and image capturing device |
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| Publication Number | Publication Date |
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| CN106547070B CN106547070B (en) | 2018-10-09 |
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| CN201811042005.5A Active CN108983397B (en) | 2015-09-23 | 2015-09-23 | Image capturing lens assembly and image capturing device |
| CN201811035781.2A Active CN108828751B (en) | 2015-09-23 | 2015-09-23 | Image capturing lens assembly and image capturing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108828751A (en) | 2018-11-16 |
| CN108828751B (en) | 2021-06-01 |
| CN108983397B (en) | 2020-11-27 |
| CN108983397A (en) | 2018-12-11 |
| CN106547070B (en) | 2018-10-09 |
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