CN105988199B - Camera chain, image-taking device and electronic device - Google Patents
Camera chain, image-taking device and electronic device Download PDFInfo
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- CN105988199B CN105988199B CN201510085582.2A CN201510085582A CN105988199B CN 105988199 B CN105988199 B CN 105988199B CN 201510085582 A CN201510085582 A CN 201510085582A CN 105988199 B CN105988199 B CN 105988199B
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Abstract
The invention discloses a kind of camera chain, image-taking device and electronic device, camera chain sequentially includes the first lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens by object side to image side.First lens have positive refracting power, and object side surface is convex surface at dipped beam axis.Second lens have refracting power, and image side surface is concave surface at dipped beam axis.Third lens, the 4th lens and the 5th lens all have refracting power.6th lens have refracting power, and image side surface is concave surface at dipped beam axis, and image side surface has an at least convex surface in off-axis place, and two surfaces are all aspherical.7th lens have refracting power, and object side surface is concave surface at dipped beam axis, and two surfaces are all aspherical.First lens to the 7th lens each other on optical axis without relative movement.Wantonly two adjacent lens are in having an airspace in first lens to the 7th lens on optical axis.Invention additionally discloses the image-taking device with above-mentioned camera chain and the electronic devices with image-taking device.
Description
Technical field
The present invention relates to a kind of camera chain, image-taking device and electronic devices, more particularly to a kind of to be suitable for electronic device
Camera chain and image-taking device.
Background technology
In recent years, flourishing with miniaturization phtographic lens, the demand of minisize image acquisition module increasingly improves, and general
The photosensitive element of phtographic lens is nothing more than being photosensitive coupling element (Charge Coupled Device, CCD) or complementary aoxidize
Metal semiconductor element (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor) two
Kind, and progressing greatly with semiconductor process technique so that the Pixel Dimensions of photosensitive element reduce, along with electronic product now with
The good and light and short external form of function is development trend, and therefore, the miniaturization phtographic lens for having good image quality becomes
For mainstream currently on the market.
In recent years, since high-order smart mobile phone (Smart Phone), wearing formula device (Wearable Device) are with putting down
The camera chain specification that the electronic devices such as plate computer (Tablet Personal Computer) are carried quickly rises, for
The demand of the optical system of large aperture and big photosensitive element is collocated with just with promotion, existing five chip and six chip optical systems
System will be unable to meet the needs of higher order.
Although there is seven chip optical systems of development to meet the needs of high-order specification at present, seven chip optical systems it is saturating
Mirror number is more, and is unfavorable for the micromation of optical system.Therefore, how to make optical system in configuration multi-disc lens, large aperture
And image quality and its miniaturization of optical system are maintained in the case of big photosensitive element simultaneously, actually current industry to be solved
One of problem.
Invention content
The purpose of the present invention is to provide a kind of camera chain, image-taking device and electronic device, wherein camera chain has
The lens for having refracting power are seven.In camera chain provided by the invention, the 6th lens image side surface is concave surface at dipped beam axis,
And the 7th lens object side surface at dipped beam axis be concave surface.Whereby, the exit pupil position of camera chain can be moved toward an imaging surface,
Contribute to the back focal length of effectively compacting camera chain, to maintain the micromation of camera chain.In addition, when a specific condition is satisfied,
The curvature that the 6th lens and the 7th lens can effectively be distributed is configured, and helps to reduce the susceptibility of camera chain and promotes manufacture
Yield.
The present invention provides a kind of camera chain, sequentially saturating comprising the first lens, the second lens, third by object side to image side
Mirror, the 4th lens, the 5th lens, the 6th lens and the 7th lens.First lens have positive refracting power, and object side surface is in dipped beam
It is convex surface at axis.Second lens have refracting power, and image side surface is concave surface at dipped beam axis.Third lens have refracting power.
4th lens have refracting power.5th lens have refracting power.6th lens have refracting power, and image side surface is at dipped beam axis
For concave surface, image side surface has an at least convex surface in off-axis place, and object side surface is all aspherical with image side surface.7th thoroughly
Mirror has refracting power, and object side surface is concave surface at dipped beam axis, and object side surface is all aspherical with image side surface.Photography system
The lens with refracting power are seven in system.First lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th
Lens and the 7th lens each other on optical axis without relative movement.First lens, the second lens, third lens, the 4th lens,
In being respectively provided with an airspace on optical axis between wantonly two adjacent lens in 5th lens, the 6th lens and the 7th lens.Photography system
The focal length of system is f, and the radius of curvature on the 6th lens image side surface is R12, and the radius of curvature of the 7th lens object side surface is R13,
It meets following condition：
0.30<(f/R12)-(f/R13)。
The present invention separately provides a kind of image-taking device, it includes aforementioned camera chain and an electronics photosensitive element, wherein,
Electronics photosensitive element is set on an imaging surface of camera chain.
The present invention separately provides a kind of electronic device, and it includes aforementioned image-taking devices.
The present invention separately provides a kind of camera chain, sequentially saturating comprising the first lens, the second lens, third by object side to image side
Mirror, the 4th lens, the 5th lens, the 6th lens and the 7th lens.First lens have positive refracting power, and object side surface is in dipped beam
It is convex surface at axis.Second lens have negative refracting power.Third lens have refracting power.4th lens have refracting power.5th thoroughly
Mirror has refracting power.6th lens have refracting power, and image side surface is concave surface at dipped beam axis, and image side surface is in off-axis place
With an at least convex surface, object side surface is all aspherical with image side surface.7th lens have refracting power, object side surface in
It is concave surface at dipped beam axis, object side surface is all aspherical with image side surface.The lens with refracting power are seven in camera chain
Piece.First lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens each other in
Without relative movement on optical axis.First lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and the 7th
In being respectively provided with an airspace on optical axis between wantonly two adjacent lens in lens.The focal length of camera chain be f, the 6th lens image side
The radius of curvature on surface is R12, and the radius of curvature of the 7th lens object side surface is R13, and the abbe number of the first lens is V1, the
The abbe number of two lens is V2, meets following condition：
0.30<(f/R12)-(f/R13)；And
25<V1-V2<45。
The present invention separately provides a kind of image-taking device, it includes aforementioned camera chain and an electronics photosensitive element, wherein,
Electronics photosensitive element is set on an imaging surface of camera chain.
The present invention separately provides a kind of electronic device, and it includes aforementioned image-taking devices.
When (f/R12)-(f/R13) meets above-mentioned condition, the curvature that can effectively distribute the 6th lens and the 7th lens is matched
It puts, to reduce the susceptibility of camera chain and promote manufacturing yield.
When V1-V2 meets above-mentioned condition, help to correct the aberration of camera chain.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Description of the drawings
Fig. 1 is painted the image-taking device schematic diagram according to first embodiment of the invention；
Fig. 2 is sequentially spherical aberration, astigmatism and the distortion curve figure of first embodiment from left to right；
Fig. 3 is painted the image-taking device schematic diagram according to second embodiment of the invention；
Fig. 4 is sequentially spherical aberration, astigmatism and the distortion curve figure of second embodiment from left to right；
Fig. 5 is painted the image-taking device schematic diagram according to third embodiment of the invention；
Fig. 6 is sequentially spherical aberration, astigmatism and the distortion curve figure of 3rd embodiment from left to right；
Fig. 7 is painted the image-taking device schematic diagram according to fourth embodiment of the invention；
Fig. 8 is sequentially spherical aberration, astigmatism and the distortion curve figure of fourth embodiment from left to right；
Fig. 9 is painted the image-taking device schematic diagram according to fifth embodiment of the invention；
Figure 10 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 5th embodiment from left to right；
Figure 11 is painted the image-taking device schematic diagram according to sixth embodiment of the invention；
Figure 12 is sequentially spherical aberration, astigmatism and the distortion curve figure of sixth embodiment from left to right；
Figure 13 is painted the image-taking device schematic diagram according to seventh embodiment of the invention；
Figure 14 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 7th embodiment from left to right；
Figure 15 is painted the image-taking device schematic diagram according to eighth embodiment of the invention；
Figure 16 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 8th embodiment from left to right；
Figure 17, which is painted, to be projected according to the maximum effective radius position on the 7th lens image side surface in Fig. 5 camera chains to optical axis
On position and the 7th lens object side surface in the schematic diagram of the intersection point on optical axis；
Figure 18 is painted a kind of schematic diagram of electronic device according to the present invention；
Figure 19 is painted the schematic diagram of another electronic device according to the present invention；
Figure 20 is painted the schematic diagram of still another electronic device according to the present invention.
Wherein, reference numeral
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
Object 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
Object Ce Biao Mian ︰ 121,221,321,421,521,621,721,821
As side surface ︰ 122,222,322,422,522,622,722,822
3rd saturating mirror ︰ 130,230,330,430,530,630,730,830
Object 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
Object 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
Object 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
Object Ce Biao Mian ︰ 161,261,361,461,561,661,761,861
As side surface ︰ 162,262,362,462,562,662,762,862
7th Tou Jing ︰ 170,270,370,470,570,670,770,870
Object Ce Biao Mian ︰ 171,271,371,471,571,671,771,871
As side surface ︰ 172,272,372,472,572,672,772,872
Infrared ray filters out optical element ︰ 180,280,380,480,580,680,780,880
Cheng Xiang Mian ︰ 190,290,390,490,590,690,790,890
Electronics photosensitive element ︰ 195,295,395,495,595,695,795,895
Dr1r8 ︰ the first lens object side surfaces to the 4th lens image side surface is in the distance on optical axis
Dr9r14 ︰ the 5th lens object side surfaces to the 7th lens image side surface are in the distance on optical axis
The focal length of f ︰ camera chains
The focal length of the first lens of f1 ︰
The focal length of the second lens of f2 ︰
The focal length of f3 ︰ third lens
The synthesis focal length of f345 ︰ thirds lens, the 4th lens and the 5th lens
The focal length of the 4th lens of f4 ︰
The focal length of the 5th lens of f5 ︰
The focal length of the 6th lens of f6 ︰
The focal length of the 7th lens of f7 ︰
The f-number of Fno ︰ camera chains
The half at maximum visual angle in HFOV ︰ camera chains
The radius of curvature on the 6th lens image side surfaces of R12 ︰
The radius of curvature of the 7th lens object side surfaces of R13 ︰
T34 ︰ thirds lens and the 4th lens are in the spacing distance on optical axis
The 4th lens of T45 ︰ and the 5th lens are in the spacing distance on optical axis
V1：The abbe number of first lens
V2：The abbe number of second lens
Between the first lens of Σ AT ︰ and the second lens, between the second lens and third lens, between third lens and the 4th lens,
Between 4th lens and the 5th lens, between the 5th lens and the 6th lens and between the 6th lens and the 7th lens in being spaced on optical axis
The summation of distance
Specific embodiment
The structural principle and operation principle of the present invention are described in detail below in conjunction with the accompanying drawings：
Camera chain is by object side to image side sequentially comprising the first lens, the second lens, third lens, the 4th lens, the 5th
Lens, the 6th lens and the 7th lens.The lens for having refracting power in camera chain are seven.
Wantonly two in first lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens
In being respectively provided with an airspace, that is, the first lens, the second lens, third lens, the 4th lens, on optical axis between adjacent lens
Five lens, the 6th lens and the 7th lens can be seven pieces of single disengaged tool refracting power lens.Due to the technique of cemented lens
More disengaged lens are complicated, and the curved surface of high accuracy need to be especially possessed on the composition surface of two lens, when being engaged to reach two lens
High adaptation, and during engagement, may also more cause to move axis defect due to deviation, influence whole optical imagery product
Matter.Therefore, the first lens in camera chain to the 7th lens can be seven pieces of single disengaged tool refracting power lens, Jin Eryou
Effect improves the problem that cemented lens.In addition, the first lens, the second lens, third lens, the 4th lens, the 5th lens,
6th lens and the 7th lens each other on optical axis without relative movement.In other words, the first lens, the second lens, third
These airspaces in lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens between wantonly two adjacent lens are all solid
Definite value.
First lens have positive refracting power, and object side surface is convex surface at dipped beam axis.Whereby, it is possible to provide camera chain institute
The positive refracting power needed, and contribute to the total length of appropriately configured camera chain.
Second lens can have negative refracting power, and image side surface can be concave surface at dipped beam axis.Whereby, first can be corrected thoroughly
The aberration that mirror generates is to promote image quality.
Third lens have refracting power.Whereby, the susceptibility of camera chain can be effectively reduced, and can reconcile camera chain
Refracting power distribution promotes image quality to avoid image periphery astigmatism and the excessive increase of distortion.
4th lens have refracting power.Whereby, the refracting power of third lens can be coordinated to adjust, makes the flexion of camera chain
Power distribution is more average.
5th lens have refracting power, and image side surface can be convex surface at dipped beam axis.Whereby, contribute to correct photography system
The astigmatism of system, to improve image quality.
6th lens have refracting power, and object side surface can be convex surface at dipped beam axis, and image side surface is in dipped beam axis
Concave surface, object side surface can have an at least concave surface in off-axis place, and image side surface has an at least convex surface in off-axis place.It borrows
This, can make the principal point of camera chain far from image side end, and then shorten the back focal length of camera chain, small-sized in favor of camera chain
Change.Furthermore the light that can suppress off-axis visual field is incident in the angle on photosensitive element, to increase the reception of image photosensitive element effect
Rate, the aberration of further modified off-axis visual field.
7th lens can have negative refracting power, and object side surface is concave surface at dipped beam axis, and image side surface is in dipped beam axis
Place can be concave surface, and image side surface can have an at least convex surface in off-axis place.Whereby, the curvature of the 6th lens and the 7th lens is matched
It puts and the exit pupil position of camera chain can be moved toward an imaging surface, help effectively to suppress the back focal length of camera chain, to maintain
The micromation of camera chain.In addition, the maximum effective radius position on the 7th lens image side surface, which is projected on optical axis, forms one
Projected position P1.Projected position P1 can compared with the 7th lens object side surface in the intersection point P2 on optical axis closer to camera chain object side
(that is, the maximum effective radius position on the 7th lens image side surface projects position P1 to optical axis to camera chain object
Side is less than the 7th lens object side surface in the intersection point P2 on optical axis to camera chain object side in optical axis in the spacing distance on optical axis
Upper spacing distance).Whereby, be conducive to correct surrounding image difference and image curvature.Figure 17 is please referred to, is painted according to Fig. 5 photographies system
The maximum effective radius position on the 7th lens image side surface projects position and the 7th lens object side surface to optical axis in system
In the schematic diagram of the intersection point on optical axis.
The focal length of camera chain is f, and the radius of curvature on the 6th lens image side surface is R12, the 7th lens object side surface
Radius of curvature is R13, meets following condition：0.30<(f/R12)-(f/R13).Whereby, the 6th lens and can effectively be distributed
The curvature configuration of seven lens helps to reduce the susceptibility of camera chain and promotes manufacturing yield.Preferably, its meet it is following
Condition：0.40<(f/R12)-(f/R13)<3.5.More preferably, meet following condition：0.50<(f/R12)-(f/R13)<3.0.
The abbe number of first lens is V1, and the abbe number of the second lens is V2, meets following condition：25<V1-V2
<45.Whereby, contribute to the aberration of amendment camera chain.
The focal length of camera chain is f, and the synthesis focal length of third lens, the 4th lens and the 5th lens is f345, is met
Following condition：-0.30<f/f345<0.60.Whereby, it is strong that third lens, total refracting power of the 4th lens and the 5th lens can be slowed down
Degree helps to reduce the problems such as causing aberration too big due to single lens refracting power is too strong in camera chain.
The focal length of first lens is f1, and the focal lengths of the second lens is f2, and the focal lengths of third lens is f3, the coke of the 4th lens
It is f5 away from the focal length for f4, the 5th lens, the focal length of the 6th lens is f6, and the focal length of the 7th lens is f7, meets following item
Part：|f1|<| fx | and | f7 |<| fx |, wherein x=2,3,4,5 or 6.Whereby, the refracting power for being conducive to balance camera chain is matched
It puts, and can strengthen correcting the aberration of camera chain.
First lens object side surface to the 4th lens image side surface in the distance on optical axis be Dr1r8, the 5th lens object side
Surface to the 7th lens image side surface is Dr9r14 in the distance on optical axis, meets following condition：0.75<Dr1r8/Dr9r14
<1.5.Whereby, the distance between each lens is more appropriate, helps to reduce the total length of camera chain.
The focal length of first lens is f1, and the focal length of the second lens is f2, meets following condition：|f1/f2|<0.80.It borrows
This, helps to shorten aberration of the overall length of camera chain with correcting camera chain.
The f-number of camera chain is Fno, meets following condition：Fno≤2.25.Whereby, photography system can suitably be adjusted
The aperture size of system makes camera chain that higher shutter speed still can be used when light is inadequate with shooting clear image.
The focal length of camera chain is f, and the focal lengths of third lens is f3, and the focal lengths of the 4th lens is f4, the coke of the 5th lens
Away from for f5, meet following condition：|f/f3|+|f/f4|+|f/f5|<1.5.Whereby, the refracting power that can balance camera chain is matched
It puts, effectively to correct the aberration of camera chain, while reduces the susceptibility of camera chain.
Between first lens and the second lens, between the second lens and third lens, between third lens and the 4th lens, the 4th thoroughly
Between mirror and the 5th lens, between the 5th lens and the 6th lens and between the 6th lens and the 7th lens in spacing distance on optical axis
It in the spacing distance on optical axis is T34 that summation, which is Σ AT, third lens and the 4th lens, and the 4th lens and the 5th lens are in optical axis
On spacing distance for T45, meet following condition：3.0<ΣAT/(T34+T45)<10.0.Whereby, it can suitably adjust each
Spacing between mirror helps to shorten the total length of photo-optic system, to maintain its miniaturization.
First lens and the second lens on optical axis spacing distance, the second lens with third lens in the interval on optical axis
Distance, third lens and the 4th lens are in spacing distance, the 4th lens and the 5th lens on optical axis in the spacer on optical axis
From, the 5th lens and the 6th lens in the spacing distance on optical axis and the 6th lens and the 7th lens in the spacer on optical axis
From among, the 6th lens and the 7th lens are maximum value in the spacing distance on optical axis.Whereby, the configuration of each lens spacing is advantageous
In making assembling more close, and then shorten the total length of camera chain to maintain its miniaturization.
The abbe number of second lens is V2, meets following condition：10<V2<30.Whereby, contribute to correct photography system
The aberration of system.
In camera chain the configuration of aperture can be preposition aperture or in put aperture.Wherein preposition aperture implies that aperture is set to
Between object and the first lens, in put aperture and then represent that aperture is set between the first lens and imaging surface.If aperture is preposition light
Circle, the outgoing pupil (Exit Pupil) and imaging surface that can make camera chain generate longer distance, make it have telecentricity
(Telecentric) effect, and the CCD or CMOS that can increase electronics photosensitive element receive the efficiency of image；Aperture is put if in,
Contribute to the field angle of expansion system, make camera chain that there is the advantage of wide-angle lens.
The invention discloses camera chain in, the material of lens can be plastic cement or glass.It, can when the material of lens is glass
To increase the degree of freedom of refracting power configuration.It is plastic cement separately to work as lens material, then can effectively reduce production cost.In addition, can be in
Set aspherical on lens surface, the aspherical shape that can be easily fabricated to other than spherical surface obtains more controlled variable, uses
To cut down aberration, and then reduce the required number using lens, therefore can effectively reduce optics total length.
The invention discloses camera chain in, if lens surface is for convex surface and when not defining the convex surface position, then it represents that should
Lens surface is convex surface at dipped beam axis；If lens surface is for concave surface and when not defining the concave surface position, then it represents that the lens measure
Face is concave surface at dipped beam axis.If the refracting power or focal length of lens do not define its regional location, then it represents that the flexion of the lens
Power or focal length are refracting power or focal length of the lens at dipped beam axis.
The invention discloses camera chain in, the imaging surface (Image Surface) of camera chain is according to its corresponding electronics
The difference of photosensitive element can be a plane or have the curved surface of any curvature, particularly relate to concave surface towards the curved surface toward object side direction.
In camera chain of the present invention, may be provided with an at least diaphragm, position may be disposed at the first lens before, each lens
Between or last lens after, the type of the diaphragm such as light diaphragm (Glare Stop) or the field stop (Field of shining
Stop) etc., to reduce stray light, help to promote image quality.
The present invention more provides a kind of image-taking device, and it includes aforementioned camera chain and electronics photosensitive elements, wherein electronics
Photosensitive element is set on the imaging surface of camera chain.Preferably, the image-taking device can further include lens barrel (Barrel
Member device (Holder Member) or combination), is supported.
Please refer to Figure 18, Figure 19 and Figure 20, image-taking device 10 many-sided can be applied to intelligent mobile phone (as shown in figure 18),
Tablet computer (as shown in figure 19) and wearing formula device (as shown in figure 20) etc..Preferably, the electronic device can be wrapped further
Containing control unit (Control Units), display unit (Display Units), storage element (Storage Units), with
Machine accesses memory (RAM) or combination.
The camera chain of the present invention has the characteristic of excellent lens error correction and good image quality.The present invention also can be many-sided
Applied to three-dimensional (3D) image capture, digital camera, mobile device, tablet computer, smart television, network monitoring device, body
Feel in the electronic devices such as game machine, row vehicle note record Apparatus, reversing developing apparatus and wearing formula device.Before take off electronic device only be demonstration
Property illustrate the present invention practice example, not limit the present invention image-taking device operation strategies.
According to the above embodiment, specific embodiment set forth below simultaneously coordinates attached drawing to be described in detail.
<First embodiment>
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is painted the image-taking device schematic diagram according to first embodiment of the invention, Fig. 2 by
Left-to-right is sequentially spherical aberration, astigmatism and the distortion curve figure of first embodiment.As shown in Figure 1, image-taking device includes photography system
System (not another label) and electronics photosensitive element 195.Camera chain is by object side to image side sequentially comprising aperture 100, the first lens
110th, the second lens 120, third lens 130, the 4th lens 140, the 5th lens 150, the 6th lens 160, the 7th lens 170,
Infrared ray filters out filter element (IR-cut Filter) 180 and imaging surface 190.Wherein, electronics photosensitive element 195 is set into
In image planes 190.The lens for having refracting power in camera chain are seven (110-170).First lens 110, the second lens 120,
Three lens 130, the 4th lens 140, the 5th lens 150, the 6th lens 160 and the 7th lens 170 are each other in nothing on optical axis
Relative movement.First lens 110, the second lens 120, third lens 130, the 4th lens 140, the 5th lens 150, the 6th lens
160 and the 7th between wantonly two adjacent lens in lens 170 in being respectively provided with an airspace on optical axis.
First lens 110 have positive refracting power, and are plastic cement material, and object side surface 111 is convex surface at dipped beam axis,
Image side surface 112 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 120 have negative refracting power, and are plastic cement material, and object side surface 121 is convex surface at dipped beam axis,
Image side surface 122 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Third lens 130 have negative refracting power, and are plastic cement material, and object side surface 131 is convex surface at dipped beam axis,
Image side surface 132 is concave surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 140 have positive refracting power, and are plastic cement material, and object side surface 141 is convex surface at dipped beam axis,
Image side surface 142 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 150 have negative refracting power, and are plastic cement material, and object side surface 151 is concave surface at dipped beam axis,
Image side surface 152 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 160 have positive refracting power, and are plastic cement material, and object side surface 161 is convex surface at dipped beam axis,
Image side surface 162 is concave surface at dipped beam axis, and two surfaces are all aspherical, and object side surface 161 has at least in off-axis place
One concave surface, image side surface 162 have an at least convex surface in off-axis place.
7th lens 170 have negative refracting power, and are plastic cement material, and object side surface 171 is concave surface at dipped beam axis,
Image side surface 172 is concave surface at dipped beam axis, and two surfaces are all aspherical, and image side surface 172 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 180 is glass, is set between the 7th lens 170 and imaging surface 190,
Have no effect on the focal length of camera chain.
The aspherical fitting equation of above-mentioned each lens represents as follows：
；Wherein：
X：Apart from the point that optical axis is Y on aspherical, the relative distance with being tangential on the section of intersection point on aspherical optical axis；
Y：The vertical range of point and optical axis in aspheric curve；
R：Radius of curvature；
k：Conical surface coefficient；And
Ai：I-th rank asphericity coefficient.
In the camera chain of first embodiment, the focal length of camera chain is f, and the f-number (F-number) of camera chain is
Fno, the half at maximum visual angle is HFOV in camera chain, and numerical value is as follows：F=5.19 millimeters (mm), Fno=1.85, HFOV
=36.0 degree (deg.).
The abbe number of second lens 120 is V2, meets following condition：V2=23.5.
The abbe number of first lens 110 is V1, and the abbe number of the second lens 120 is V2, meets following condition：
V1-V2=32.40.
First lens object side surface, 111 to the 4th lens image side surface 142 is Dr1r8 in the distance on optical axis, and the 5th thoroughly
151 to the 7th lens image side surface 172 of mirror object side surface is Dr9r14 in the distance on optical axis, meets following condition：
Dr1r8/Dr9r14=0.94.
Between first lens 110 and the second lens 120, between the second lens 120 and third lens 130, third lens 130 and
Between four lens 140, between the 4th lens 140 and the 5th lens 150, between the 5th lens 150 and the 6th lens 160 and the 6th lens
160 and the 7th be Σ AT in the summation of spacing distance on optical axis between lens 170, and 130 and the 4th lens 140 of third lens are in optical axis
On spacing distance be T34, the 4th lens 140 and the 5th lens 150 in the spacing distance on optical axis be T45, meet following
Condition：Σ AT/ (T34+T45)=6.17.
The focal length of camera chain is f, and the radius of curvature on the 6th lens image side surface 162 is R12, the 7th lens object side surface
171 radius of curvature is R13, meets following condition：(f/R12)-(f/R13)=0.32.
The focal length of first lens 110 is f1, and the focal length of the second lens 120 is f2, meets following condition：| f1/f2 |=
0.49。
The focal length of camera chain is f, and the focal length of third lens 130 is f3, and the focal length of the 4th lens 140 is f4, and the 5th thoroughly
The focal length of mirror 150 is f5, meets following condition：| f/f3 |+| f/f4 |+| f/f5 |=1.16.
The focal length of camera chain be f, third lens 130, the 4th lens 140 and the 5th lens 150 synthesis focal length be
F345 meets following condition：F/f345=0.20
Cooperation is with reference to following table one and table two.
The structured data detailed for Fig. 1 first embodiments of table one, the wherein unit of radius of curvature, thickness and focal length are millimeter
(mm), and surface 0 to 18 is sequentially represented by the surface of object side to image side.Table two is the aspherical surface data in first embodiment,
In, k is the conical surface coefficient in aspheric curve equation, and A4 to A16 then represents each the 4 to 16th rank asphericity coefficient of surface.This
Outside, following embodiment table is schematic diagram and the aberration curve figure of corresponding each embodiment, and the definition of data is all with the in table
The definition of the table one and table two of one embodiment is identical, and not in this to go forth.
<Second embodiment>
Please refer to Fig. 3 and Fig. 4, wherein Fig. 3 is painted the image-taking device schematic diagram according to second embodiment of the invention, Fig. 4 by
Left-to-right is sequentially spherical aberration, astigmatism and the distortion curve figure of second embodiment.From the figure 3, it may be seen that image-taking device includes photography system
System (not another label) and electronics photosensitive element 295.Camera chain is by object side to image side sequentially comprising aperture 200, the first lens
210th, the second lens 220, third lens 230, the 4th lens 240, the 5th lens 250, the 6th lens 260, the 7th lens 270,
Infrared ray filters out filter element 280 and imaging surface 290.Wherein, electronics photosensitive element 295 is set on imaging surface 290.Photography system
The lens for having refracting power in system are seven (210-270).First lens 210, the second lens 220, third lens the 230, the 4th are saturating
Mirror 240, the 5th lens 250, the 6th lens 260 and the 7th lens 270 each other on optical axis without relative movement.First lens
210th, the second lens 220, third lens 230, the 4th lens 240, the 5th lens 250, the 6th lens 260 and the 7th lens 270
In between wantonly two adjacent lens in being respectively provided with an airspace on optical axis.
First lens 210 have positive refracting power, and are plastic cement material, and object side surface 211 is convex surface at dipped beam axis,
Image side surface 212 is convex surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 220 have negative refracting power, and are plastic cement material, and object side surface 221 is convex surface at dipped beam axis,
Image side surface 222 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Third lens 230 have negative refracting power, and are plastic cement material, and object side surface 231 is convex surface at dipped beam axis,
Image side surface 232 is concave surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 240 have positive refracting power, and are plastic cement material, and object side surface 241 is convex surface at dipped beam axis,
Image side surface 242 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 250 have positive refracting power, and are plastic cement material, and object side surface 251 is concave surface at dipped beam axis,
Image side surface 252 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 260 have positive refracting power, and are plastic cement material, and object side surface 261 is convex surface at dipped beam axis,
Image side surface 262 is concave surface at dipped beam axis, and two surfaces are all aspherical, and object side surface 261 has at least in off-axis place
One concave surface, image side surface 262 have an at least convex surface in off-axis place.
7th lens 270 have negative refracting power, and are plastic cement material, and object side surface 271 is concave surface at dipped beam axis,
Image side surface 272 is concave surface at dipped beam axis, and two surfaces are all aspherical, and image side surface 272 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 280 is glass, is set between the 7th lens 270 and imaging surface 290,
Have no effect on the focal length of camera chain.
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, described in following table
Definition is all identical with the first embodiment, and not in this to go forth.
<3rd embodiment>
Please refer to Fig. 5 and Fig. 6, wherein Fig. 5 is painted the image-taking device schematic diagram according to third embodiment of the invention, Fig. 6 by
Left-to-right is sequentially spherical aberration, astigmatism and the distortion curve figure of 3rd embodiment.As shown in Figure 5, image-taking device includes photography system
System (not another label) and electronics photosensitive element 395.Camera chain is by object side to image side sequentially comprising the first lens 310, aperture
300th, the second lens 320, third lens 330, the 4th lens 340, the 5th lens 350, the 6th lens 360, the 7th lens 370,
Infrared ray filters out filter element 380 and imaging surface 390.Wherein, electronics photosensitive element 395 is set on imaging surface 390.Photography system
The lens for having refracting power in system are seven (310-370).First lens 310, the second lens 320, third lens the 330, the 4th are saturating
Mirror 340, the 5th lens 350, the 6th lens 360 and the 7th lens 370 each other on optical axis without relative movement.First lens
310th, the second lens 320, third lens 330, the 4th lens 340, the 5th lens 350, the 6th lens 360 and the 7th lens 370
In between wantonly two adjacent lens in being respectively provided with an airspace on optical axis.
First lens 310 have positive refracting power, and are plastic cement material, and object side surface 311 is convex surface at dipped beam axis,
Image side surface 312 is convex surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 320 have negative refracting power, and are plastic cement material, and object side surface 321 is convex surface at dipped beam axis,
Image side surface 322 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Third lens 330 have negative refracting power, and are plastic cement material, and object side surface 331 is convex surface at dipped beam axis,
Image side surface 332 is concave surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 340 have positive refracting power, and are plastic cement material, and object side surface 341 is convex surface at dipped beam axis,
Image side surface 342 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 350 have positive refracting power, and are plastic cement material, and object side surface 351 is concave surface at dipped beam axis,
Image side surface 352 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 360 have negative refracting power, and are plastic cement material, and object side surface 361 is convex surface at dipped beam axis,
Image side surface 362 is concave surface at dipped beam axis, and two surfaces are all aspherical, and object side surface 361 has at least in off-axis place
One concave surface, image side surface 362 have an at least convex surface in off-axis place.
7th lens 370 have negative refracting power, and are plastic cement material, and object side surface 371 is concave surface at dipped beam axis,
Image side surface 372 is concave surface at dipped beam axis, and two surfaces are all aspherical, and image side surface 372 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 380 is glass, is set between the 7th lens 370 and imaging surface 390,
Have no effect on the focal length of camera chain.
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, described in following table
Definition is all identical with the first embodiment, and not in this to go forth.
<Fourth embodiment>
Please refer to Fig. 7 and Fig. 8, wherein Fig. 7 is painted the image-taking device schematic diagram according to fourth embodiment of the invention, Fig. 8 by
Left-to-right is sequentially spherical aberration, astigmatism and the distortion curve figure of fourth embodiment.As shown in Figure 7, image-taking device includes photography system
System (not another label) and electronics photosensitive element 495.Camera chain is by object side to image side sequentially comprising the first lens 410, aperture
400th, the second lens 420, third lens 430, the 4th lens 440, the 5th lens 450, the 6th lens 460, the 7th lens 470,
Infrared ray filters out filter element 480 and imaging surface 490.Wherein, electronics photosensitive element 495 is set on imaging surface 490.Photography system
The lens for having refracting power in system are seven (410-470).First lens 410, the second lens 420, third lens the 430, the 4th are saturating
Mirror 440, the 5th lens 450, the 6th lens 460 and the 7th lens 470 each other on optical axis without relative movement.First lens
410th, the second lens 420, third lens 430, the 4th lens 440, the 5th lens 450, the 6th lens 460 and the 7th lens 470
In between wantonly two adjacent lens in being respectively provided with an airspace on optical axis.
First lens 410 have positive refracting power, and are plastic cement material, and object side surface 411 is convex surface at dipped beam axis,
Image side surface 412 is convex surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 420 have negative refracting power, and are plastic cement material, and object side surface 421 is convex surface at dipped beam axis,
Image side surface 422 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Third lens 430 have positive refracting power, and are plastic cement material, and object side surface 431 is convex surface at dipped beam axis,
Image side surface 432 is concave surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 440 have positive refracting power, and are plastic cement material, and object side surface 441 is convex surface at dipped beam axis,
Image side surface 442 is concave surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 450 have positive refracting power, and are plastic cement material, and object side surface 451 is concave surface at dipped beam axis,
Image side surface 452 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 460 have negative refracting power, and are plastic cement material, and object side surface 461 is convex surface at dipped beam axis,
Image side surface 462 is concave surface at dipped beam axis, and two surfaces are all aspherical, and image side surface 462 has at least in off-axis place
One convex surface.
7th lens 470 have negative refracting power, and are plastic cement material, and object side surface 471 is concave surface at dipped beam axis,
Image side surface 472 is concave surface at dipped beam axis, and two surfaces are all aspherical.
The material that infrared ray filters out filter element 480 is glass, is set between the 7th lens 470 and imaging surface 490,
Have no effect on the focal length of camera chain.
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, described in following table
Definition is all identical with the first embodiment, and not in this to go forth.
<5th embodiment>
Fig. 9 and Figure 10 is please referred to, wherein Fig. 9 is painted the image-taking device schematic diagram according to fifth embodiment of the invention, Figure 10
It is sequentially spherical aberration, astigmatism and the distortion curve figure of the 5th embodiment from left to right.As shown in Figure 9, image-taking device includes photography
System (not another label) and electronics photosensitive element 595.Camera chain is by object side to image side sequentially comprising aperture 500, the first lens
510th, the second lens 520, third lens 530, the 4th lens 540, the 5th lens 550, the 6th lens 560, the 7th lens 570,
Infrared ray filters out filter element 580 and imaging surface 590.Wherein, electronics photosensitive element 595 is set on imaging surface 590.Photography system
The lens for having refracting power in system are seven (510-570).First lens 510, the second lens 520, third lens the 530, the 4th are saturating
Mirror 540, the 5th lens 550, the 6th lens 560 and the 7th lens 570 each other on optical axis without relative movement.First lens
510th, the second lens 520, third lens 530, the 4th lens 540, the 5th lens 550, the 6th lens 560 and the 7th lens 570
In between wantonly two adjacent lens in being respectively provided with an airspace on optical axis.
First lens 510 have positive refracting power, and are plastic cement material, and object side surface 511 is convex surface at dipped beam axis,
Image side surface 512 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 520 have negative refracting power, and are plastic cement material, and object side surface 521 is concave surface at dipped beam axis,
Image side surface 522 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Third lens 530 have positive refracting power, and are plastic cement material, and object side surface 531 is convex surface at dipped beam axis,
Image side surface 532 is concave surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 540 have negative refracting power, and are plastic cement material, and object side surface 541 is convex surface at dipped beam axis,
Image side surface 542 is concave surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 550 have positive refracting power, and are plastic cement material, and object side surface 551 is concave surface at dipped beam axis,
Image side surface 552 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 560 have positive refracting power, and are plastic cement material, and object side surface 561 is convex surface at dipped beam axis,
Image side surface 562 is concave surface at dipped beam axis, and two surfaces are all aspherical, and object side surface 561 has at least in off-axis place
One concave surface, image side surface 562 have an at least convex surface in off-axis place.
7th lens 570 have negative refracting power, and are plastic cement material, and object side surface 571 is concave surface at dipped beam axis,
Image side surface 572 is concave surface at dipped beam axis, and two surfaces are all aspherical, and image side surface 572 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 580 is glass, is set between the 7th lens 570 and imaging surface 590,
Have no effect on the focal length of camera chain.
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, described in following table
Definition is all identical with the first embodiment, and not in this to go forth.
<Sixth embodiment>
Figure 11 and Figure 12 is please referred to, wherein Figure 11 is painted the image-taking device schematic diagram according to sixth embodiment of the invention, figure
12 be sequentially spherical aberration, astigmatism and the distortion curve figure of sixth embodiment from left to right.As shown in Figure 11, image-taking device is included and is taken the photograph
Shadow system (not another label) and electronics photosensitive element 695.Camera chain is sequentially saturating comprising aperture 600, first by object side to image side
Mirror 610, the second lens 620, third lens 630, the 4th lens 640, the 5th lens 650, the 6th lens 660, the 7th lens
670th, infrared ray filters out filter element 680 and imaging surface 690.Wherein, electronics photosensitive element 695 is set on imaging surface 690.It takes the photograph
The lens for having refracting power in shadow system are seven (610-670).First lens 610, the second lens 620, third lens 630,
Four lens 640, the 5th lens 650, the 6th lens 660 and the 7th lens 670 each other on optical axis without relative movement.First
Lens 610, the second lens 620, third lens 630, the 4th lens 640, the 5th lens 650, the 6th lens 660 and the 7th lens
In being respectively provided with an airspace on optical axis between wantonly two adjacent lens in 670.
First lens 610 have positive refracting power, and are plastic cement material, and object side surface 611 is convex surface at dipped beam axis,
Image side surface 612 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 620 have negative refracting power, and are plastic cement material, and object side surface 621 is convex surface at dipped beam axis,
Image side surface 622 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Third lens 630 have positive refracting power, and are plastic cement material, and object side surface 631 is convex surface at dipped beam axis,
Image side surface 632 is convex surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 640 have negative refracting power, and are plastic cement material, and object side surface 641 is concave surface at dipped beam axis,
Image side surface 642 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 650 have negative refracting power, and are plastic cement material, and object side surface 651 is concave surface at dipped beam axis,
Image side surface 652 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 660 have positive refracting power, and are plastic cement material, and object side surface 661 is convex surface at dipped beam axis,
Image side surface 662 is concave surface at dipped beam axis, and two surfaces are all aspherical, and object side surface 661 has at least in off-axis place
One concave surface, image side surface 662 have an at least convex surface in off-axis place.
7th lens 670 have negative refracting power, and are plastic cement material, and object side surface 671 is concave surface at dipped beam axis,
Image side surface 672 is concave surface at dipped beam axis, and two surfaces are all aspherical, and image side surface 672 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 680 is glass, is set between the 7th lens 670 and imaging surface 690,
Have no effect on the focal length of camera chain.
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, described in following table
Definition is all identical with the first embodiment, and not in this to go forth.
<7th embodiment>
Figure 13 and Figure 14 is please referred to, wherein Figure 13 is painted the image-taking device schematic diagram according to seventh embodiment of the invention, figure
14 be sequentially spherical aberration, astigmatism and the distortion curve figure of the 7th embodiment from left to right.As shown in Figure 13, image-taking device is included and is taken the photograph
Shadow system (not another label) and electronics photosensitive element 795.Camera chain is by object side to image side sequentially comprising the first lens 710, light
Enclose the 700, second lens 720, third lens 730, the 4th lens 740, the 5th lens 750, the 6th lens 760, the 7th lens
770th, infrared ray filters out filter element 780 and imaging surface 790.Wherein, electronics photosensitive element 795 is set on imaging surface 790.It takes the photograph
The lens for having refracting power in shadow system are seven (710-770).First lens 710, the second lens 720, third lens 730,
Four lens 740, the 5th lens 750, the 6th lens 760 and the 7th lens 770 each other on optical axis without relative movement.First
Lens 710, the second lens 720, third lens 730, the 4th lens 740, the 5th lens 750, the 6th lens 760 and the 7th lens
In being respectively provided with an airspace on optical axis between wantonly two adjacent lens in 770.
First lens 710 have positive refracting power, and are plastic cement material, and object side surface 711 is convex surface at dipped beam axis,
Image side surface 712 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 720 have positive refracting power, and are plastic cement material, and object side surface 721 is convex surface at dipped beam axis,
Image side surface 722 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Third lens 730 have positive refracting power, and are plastic cement material, and object side surface 731 is convex surface at dipped beam axis,
Image side surface 732 is convex surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 740 have negative refracting power, and are plastic cement material, and object side surface 741 is concave surface at dipped beam axis,
Image side surface 742 is convex surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 750 have negative refracting power, and are plastic cement material, and object side surface 751 is concave surface at dipped beam axis,
Image side surface 752 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 760 have positive refracting power, and are plastic cement material, and object side surface 761 is convex surface at dipped beam axis,
Image side surface 762 is concave surface at dipped beam axis, and two surfaces are all aspherical, and object side surface 761 has at least in off-axis place
One concave surface, image side surface 762 have an at least convex surface in off-axis place.
7th lens 770 have negative refracting power, and are plastic cement material, and object side surface 771 is concave surface at dipped beam axis,
Image side surface 772 is concave surface at dipped beam axis, and two surfaces are all aspherical, and image side surface 772 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 780 is glass, is set between the 7th lens 770 and imaging surface 790,
Have no effect on the focal length of camera chain.
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, described in following table
Definition is all identical with the first embodiment, and not in this to go forth.
<8th embodiment>
Figure 15 and Figure 16 is please referred to, wherein Figure 15 is painted the image-taking device schematic diagram according to eighth embodiment of the invention, figure
16 be sequentially spherical aberration, astigmatism and the distortion curve figure of the 8th embodiment from left to right.As shown in Figure 15, image-taking device is included and is taken the photograph
Shadow system (not another label) and electronics photosensitive element 895.Camera chain is sequentially saturating comprising aperture 800, first by object side to image side
Mirror 810, the second lens 820, third lens 830, the 4th lens 840, the 5th lens 850, the 6th lens 860, the 7th lens
870th, infrared ray filters out filter element 880 and imaging surface 890.Wherein, electronics photosensitive element 895 is set on imaging surface 890.It takes the photograph
The lens for having refracting power in shadow system are seven (810-870).First lens 810, the second lens 820, third lens 830,
Four lens 840, the 5th lens 850, the 6th lens 860 and the 7th lens 870 each other on optical axis without relative movement.First
Lens 810, the second lens 820, third lens 830, the 4th lens 840, the 5th lens 850, the 6th lens 860 and the 7th lens
In being respectively provided with an airspace on optical axis between wantonly two adjacent lens in 870.
First lens 810 have positive refracting power, and are plastic cement material, and object side surface 811 is convex surface at dipped beam axis,
Image side surface 812 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Second lens 820 have negative refracting power, and are plastic cement material, and object side surface 821 is convex surface at dipped beam axis,
Image side surface 822 is concave surface at dipped beam axis, and two surfaces are all aspherical.
Third lens 830 have positive refracting power, and are plastic cement material, and object side surface 831 is convex surface at dipped beam axis,
Image side surface 832 is convex surface at dipped beam axis, and two surfaces are all aspherical.
4th lens 840 have negative refracting power, and are plastic cement material, and object side surface 841 is concave surface at dipped beam axis,
Image side surface 842 is concave surface at dipped beam axis, and two surfaces are all aspherical.
5th lens 850 have positive refracting power, and are plastic cement material, and object side surface 851 is concave surface at dipped beam axis,
Image side surface 852 is convex surface at dipped beam axis, and two surfaces are all aspherical.
6th lens 860 have positive refracting power, and are plastic cement material, and object side surface 861 is convex surface at dipped beam axis,
Image side surface 862 is concave surface at dipped beam axis, and two surfaces are all aspherical, and object side surface 861 has at least in off-axis place
One concave surface, image side surface 862 have an at least convex surface in off-axis place.
7th lens 870 have negative refracting power, and are plastic cement material, and object side surface 871 is concave surface at dipped beam axis,
Image side surface 872 is concave surface at dipped beam axis, and two surfaces are all aspherical, and image side surface 872 has at least in off-axis place
One convex surface.
The material that infrared ray filters out filter element 880 is glass, is set between the 7th lens 870 and imaging surface 890,
Have no effect on the focal length of camera chain.
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, described in following table
Definition is all identical with the first embodiment, and not in this to go forth.
Above-mentioned image-taking device may be disposed in electronic device.Camera chain provided by the invention has refracting power using seven
Lens, wherein the 6th lens image side surface is concave surface at dipped beam axis, and the 7th lens object side surface is concave surface at dipped beam axis.
Whereby, the exit pupil position of camera chain toward an imaging surface can be moved, helps effectively to suppress the back focal length of camera chain, with dimension
Hold the micromation of camera chain.In addition, when a specific condition is satisfied, the curvature that can effectively distribute the 6th lens and the 7th lens is matched
It puts, help to reduce the susceptibility of camera chain and promotes manufacturing yield.Camera chain provided by the invention uses seven tools
The lens of refracting power, the lens face type and specified conditions for arranging in pairs or groups appropriate help to provide a kind of high-quality and maintain miniaturization
Camera chain.
Although the present invention has been disclosed by way of example above, it is not intended to limit the present invention..It is any to be familiar with this those skilled in the art,
Without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations.Therefore protection scope of the present invention is worked as and is regarded
Subject to range defined in the attached claims.
Claims (27)
1. a kind of camera chain is sequentially included by object side to image side：
One first lens, have positive refracting power, and object side surface is convex surface at dipped beam axis；
One second lens；
One third lens, object side surface are convex surface at dipped beam axis；
One the 4th lens, object side surface are convex surface at dipped beam axis；
One the 5th lens；
One the 6th lens, image side surface are concave surface at dipped beam axis, and image side surface has an at least convex surface in off-axis place,
Object side surface is all aspherical with image side surface；And
One the 7th lens, object side surface are concave surface at dipped beam axis, and object side surface is all aspherical with image side surface；
Wherein, the lens in the camera chain are seven, and first lens, second lens, the third lens, the 4th are thoroughly
Mirror, the 5th lens, the 6th lens and the 7th lens each other on optical axis without relative movement, first lens, should
Wantonly two is adjacent in second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens
In being respectively provided with an airspace on optical axis between lens, first lens and second lens on optical axis spacing distance, this
Two lens are with the third lens in spacing distance, the third lens and the 4th lens on optical axis in the spacer on optical axis
From, the 4th lens and the 5th lens on optical axis spacing distance, the 5th lens with the 6th lens on optical axis
Among the spacing distance on optical axis, the 6th lens are saturating with the 7th for spacing distance and the 6th lens and the 7th lens
Mirror is maximum value in the spacing distance on optical axis；
Wherein, the focal length of the camera chain is f, and the radius of curvature on the 6th lens image side surface is R12, the 7th lens object side
The radius of curvature on surface is R13, meets following condition：
0.30<(f/R12)-(f/R13)；
It is characterized in that, the image side surface of second lens is concave surface at dipped beam axis.
2. camera chain according to claim 1, which is characterized in that the 7th lens have negative refracting power, and the 7th thoroughly
Mirror image side surface is concave surface at dipped beam axis, and the 7th lens image side surface has an at least convex surface in off-axis place.
3. camera chain according to claim 2, which is characterized in that the focal length of the camera chain be f, the third lens,
The synthesis focal length of 4th lens and the 5th lens is f345, meets following condition：
-0.30<f/f345<0.60。
4. camera chain according to claim 2, which is characterized in that the maximum effective radius on the 7th lens image side surface
Position be projected on the position of optical axis compared with the 7th lens object side surface in the intersection point on optical axis closer to the object side of the camera chain.
5. camera chain according to claim 2, which is characterized in that the focal length of first lens be f1, second lens
Focal length for f2, the focal length of the third lens is f3, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, should
The focal length of 6th lens is f6, and the focal length of the 7th lens is f7, meets following condition：
|f1|<|fx|；And
|f7|<| fx |, wherein x=2,3,4,5,6.
6. camera chain according to claim 1, which is characterized in that second lens have negative refracting power, this is first thoroughly
The abbe number of mirror is V1, and the abbe number of second lens is V2, meets following condition：
25<V1-V2<45。
7. camera chain according to claim 6, which is characterized in that the first lens object side surface to the 4th lens picture
Side surface is Dr1r8 in the distance on optical axis, and the 5th lens object side surface to the 7th lens image side surface is on optical axis
Distance is Dr9r14, meets following condition：
0.75<Dr1r8/Dr9r14<1.5。
8. camera chain according to claim 7, which is characterized in that the 6th lens object side surface is convex at dipped beam axis
Face, and the 6th lens object side surface has an at least concave surface in off-axis place.
9. camera chain according to claim 7, which is characterized in that the focal length of first lens be f1, second lens
Focal length for f2, meet following condition：
|f1/f2|<0.80。
10. camera chain according to claim 1, which is characterized in that the 5th lens image side surface is at dipped beam axis
Convex surface, the f-number of the camera chain is Fno, meets following condition：
Fno≤2.25。
11. camera chain according to claim 10, which is characterized in that the focal length of the camera chain be f, the 6th lens
The radius of curvature on image side surface is R12, and the radius of curvature of the 7th lens object side surface is R13, meets following condition：
0.40<(f/R12)-(f/R13)<3.5。
12. camera chain according to claim 10, which is characterized in that the focal length of the camera chain be f, the third lens
Focal length for f3, the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, meets following condition：
|f/f3|+|f/f4|+|f/f5|<1.5。
13. camera chain according to claim 10, which is characterized in that between first lens and second lens, this
Between two lens and the third lens, between the third lens and the 4th lens, between the 4th lens and the 5th lens, the 5th
Between lens and the 6th lens and between the 6th lens and the 7th lens in the summation of spacing distance on optical axis be Σ AT, should
Third lens are T34 in the spacing distance on optical axis with the 4th lens, and the 4th lens are with the 5th lens on optical axis
Spacing distance is T45, meets following condition：
3.0<ΣAT/(T34+T45)<10.0。
14. camera chain according to claim 1, which is characterized in that the focal length of the camera chain be f, the 6th lens
The radius of curvature on image side surface is R12, and the radius of curvature of the 7th lens object side surface is R13, meets following condition：
0.50<(f/R12)-(f/R13)<3.0。
15. a kind of image-taking device, which is characterized in that include：
Camera chain as described in claim 1；And
One electronics photosensitive element, wherein the electronics photosensitive element are set on an imaging surface of the camera chain.
16. a kind of electronic device, which is characterized in that include：
Image-taking device as claimed in claim 15.
17. a kind of camera chain is sequentially included by object side to image side：
One first lens, have positive refracting power, and object side surface is convex surface at dipped beam axis；
One second lens have negative refracting power；
One third lens, object side surface are convex surface at dipped beam axis；
One the 4th lens, object side surface are convex surface at dipped beam axis；
One the 5th lens；
One the 6th lens, image side surface are concave surface at dipped beam axis, and image side surface has an at least convex surface in off-axis place,
Object side surface is all aspherical with image side surface；And
One the 7th lens, object side surface are concave surface at dipped beam axis, and object side surface is all aspherical with image side surface；
Wherein, the lens in the camera chain are seven, and first lens, second lens, the third lens, the 4th are thoroughly
Mirror, the 5th lens, the 6th lens and the 7th lens each other on optical axis without relative movement, first lens, should
Wantonly two is adjacent in second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens
In being respectively provided with an airspace on optical axis between lens；
Wherein, the focal length of the camera chain is f, and the radius of curvature on the 6th lens image side surface is R12, the 7th lens object side
The radius of curvature on surface is R13, and the synthesis focal length of the third lens, the 4th lens and the 5th lens is f345, is met
Following condition：
0.30<(f/R12)-(f/R13)；And
-0.30<f/f345<0.60；
It is characterized in that, the image side surface of second lens is concave surface at dipped beam axis, the abbe number of first lens is V1,
The abbe number of second lens is V2, meets following condition：
25<V1-V2<45。
18. camera chain according to claim 17, which is characterized in that the 7th lens image side surface is at dipped beam axis
Concave surface, the 7th lens image side surface have an at least convex surface in off-axis place, and the focal lengths of first lens is f1, second lens
Focal length for f2, meet following condition：
|f1/f2|<0.80。
19. camera chain according to claim 18, which is characterized in that the focal length of the camera chain be f, the 6th lens
The radius of curvature on image side surface is R12, and the radius of curvature of the 7th lens object side surface is R13, meets following condition：
0.40<(f/R12)-(f/R13)<3.5。
20. camera chain according to claim 18, which is characterized in that between first lens and second lens, this
Between two lens and the third lens, between the third lens and the 4th lens, between the 4th lens and the 5th lens, the 5th
Between lens and the 6th lens and between the 6th lens and the 7th lens in the summation of spacing distance on optical axis be Σ AT, should
Third lens are T34 in the spacing distance on optical axis with the 4th lens, and the 4th lens are with the 5th lens on optical axis
Spacing distance is T45, meets following condition：
3.0<ΣAT/(T34+T45)<10.0。
21. camera chain according to claim 17, which is characterized in that the 6th lens object side surface is at dipped beam axis
Convex surface, the 6th lens object side surface have an at least concave surface in off-axis place, and the abbe number of second lens is V2, is met
Following condition：
10<V2<30。
22. camera chain according to claim 17, which is characterized in that the focal length of the camera chain be f, the third lens
Focal length for f3, the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, meets following condition：
|f/f3|+|f/f4|+|f/f5|<1.5。
23. camera chain according to claim 17, which is characterized in that the focal length of first lens be f1, this second thoroughly
The focal length of mirror is f2, and the focal length of the third lens is f3, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5,
The focal length of 6th lens is f6, and the focal length of the 7th lens is f7, meets following condition：
|f1|<|fx|；And
|f7|<| fx |, wherein x=2,3,4,5 or 6.
24. camera chain according to claim 17, which is characterized in that the first lens object side surface to the 4th lens
Image side surface is Dr1r8 in the distance on optical axis, and the 5th lens object side surface to the 7th lens image side surface is on optical axis
Distance for Dr9r14, meet following condition：
0.75<Dr1r8/Dr9r14<1.5。
25. camera chain according to claim 17, which is characterized in that the focal length of the camera chain be f, the 6th lens
The radius of curvature on image side surface is R12, and the radius of curvature of the 7th lens object side surface is R13, meets following condition：
0.50<(f/R12)-(f/R13)<3.0。
26. a kind of image-taking device, which is characterized in that include：
Camera chain as claimed in claim 17；And
One electronics photosensitive element, wherein the electronics photosensitive element are set on an imaging surface of the camera chain.
27. a kind of electronic device, which is characterized in that include：
Image-taking device as claimed in claim 26.
Priority Applications (2)
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| CN201510085582.2A CN105988199B (en) | 2015-02-17 | 2015-02-17 | Camera chain, image-taking device and electronic device |
| CN201810439279.1A CN108710193B (en) | 2015-02-17 | 2015-02-17 | Photographing system and image capturing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510085582.2A CN105988199B (en) | 2015-02-17 | 2015-02-17 | Camera chain, image-taking device and electronic device |
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| CN201810439279.1A Division CN108710193B (en) | 2015-02-17 | 2015-02-17 | Photographing system and image capturing device |
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| CN105988199B true CN105988199B (en) | 2018-06-19 |
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| CN201810439279.1A Active CN108710193B (en) | 2015-02-17 | 2015-02-17 | Photographing system and image capturing device |
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Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI629535B (en) * | 2017-02-18 | 2018-07-11 | 大立光電股份有限公司 | Image capturing optical system, imaging apparatus and electronic device |
| TWI631382B (en) * | 2017-07-19 | 2018-08-01 | 大立光電股份有限公司 | Photographing lens assembly, imaging apparatus and electronic device |
| TWI622829B (en) * | 2017-07-19 | 2018-05-01 | 大立光電股份有限公司 | Optical image capturing lens assembly, imaging apparatus and electronic device |
| CN108107552B (en) * | 2017-11-17 | 2022-04-08 | 玉晶光电(厦门)有限公司 | Optical imaging lens |
| CN108333713B (en) * | 2017-12-22 | 2023-12-01 | 东莞市美光达光学科技有限公司 | Optical pick-up lens |
| TWI642991B (en) * | 2017-12-25 | 2018-12-01 | 大立光電股份有限公司 | Photographing lens assembly, imaging apparatus and electronic device |
| CN116149029A (en) | 2018-01-05 | 2023-05-23 | 浙江舜宇光学有限公司 | Optical imaging lens |
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| CN115220193A (en) * | 2018-05-29 | 2022-10-21 | 三星电机株式会社 | Optical imaging system |
| CN113805321A (en) * | 2018-05-29 | 2021-12-17 | 三星电机株式会社 | Optical imaging system |
| CN110542985B (en) * | 2018-05-29 | 2022-06-28 | 三星电机株式会社 | Optical imaging system |
| CN110542999B (en) | 2018-05-29 | 2022-09-27 | 三星电机株式会社 | Optical imaging system |
| CN108873252B (en) * | 2018-07-02 | 2023-12-19 | 浙江舜宇光学有限公司 | Optical imaging lens |
| JP6821276B2 (en) * | 2018-10-23 | 2021-01-27 | カンタツ株式会社 | Imaging lens |
| CN109031628B (en) * | 2018-10-29 | 2023-08-04 | 浙江舜宇光学有限公司 | Optical imaging lens group |
| CN109283665B (en) * | 2018-12-07 | 2024-04-16 | 浙江舜宇光学有限公司 | Imaging lens |
| CN109407278B (en) * | 2018-12-10 | 2024-04-23 | 浙江舜宇光学有限公司 | Imaging lens |
| CN109407284B (en) * | 2018-12-26 | 2023-11-14 | 浙江舜宇光学有限公司 | Optical imaging system |
| CN109828350B (en) * | 2018-12-27 | 2021-06-18 | 瑞声光学解决方案私人有限公司 | Image pickup optical lens |
| US11644642B2 (en) * | 2019-02-21 | 2023-05-09 | Samsung Electro-Mechanics Co., Ltd. | Optical imaging system |
| CN110161664B (en) * | 2019-05-08 | 2020-11-17 | 瑞声光电科技（苏州）有限公司 | Image pickup optical lens |
| CN110673308A (en) | 2019-11-05 | 2020-01-10 | 浙江舜宇光学有限公司 | Optical imaging system |
| CN110850556A (en) * | 2019-12-10 | 2020-02-28 | 广东旭业光电科技股份有限公司 | Optical lens assembly |
| WO2021128150A1 (en) * | 2019-12-26 | 2021-07-01 | 诚瑞光学(常州)股份有限公司 | Imaging optical lens |
| CN111308653B (en) * | 2020-02-25 | 2022-01-07 | 诚瑞光学(常州)股份有限公司 | Image pickup optical lens |
| WO2022041054A1 (en) * | 2020-08-27 | 2022-03-03 | 欧菲光集团股份有限公司 | Optical system, camera module, and electronic device |
| CN114167576B (en) * | 2020-09-11 | 2023-03-28 | 新巨科技股份有限公司 | Seven-piece imaging lens group |
| CN112285905B (en) * | 2020-12-31 | 2021-03-16 | 常州市瑞泰光电有限公司 | Image pickup optical lens |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5642229A (en) * | 1993-06-15 | 1997-06-24 | Mitsubishi Denki Kabushiki Kaisha | Projection lens unit |
| CN202837662U (en) * | 2012-06-19 | 2013-03-27 | 大立光电股份有限公司 | Image lens system group |
| CN203673137U (en) * | 2013-01-30 | 2014-06-25 | 康达智株式会社 | Pick-up lens |
| CN203941337U (en) * | 2013-07-02 | 2014-11-12 | 富士胶片株式会社 | Pick-up lens and possess the camera head of pick-up lens |
| CN203965708U (en) * | 2013-09-11 | 2014-11-26 | 康达智株式会社 | Pick-up lens |
| CN204065539U (en) * | 2014-01-10 | 2014-12-31 | 株式会社光学逻辑 | Pick-up lens |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3261716B2 (en) * | 1992-01-16 | 2002-03-04 | 株式会社ニコン | Reverse telephoto large aperture wide angle lens |
| JP2004144947A (en) * | 2002-10-23 | 2004-05-20 | Ricoh Co Ltd | Zoom lens, camera and personal digital assistant device |
| TWI429943B (en) * | 2010-10-06 | 2014-03-11 | Largan Precision Co Ltd | Optical imaging lens system |
| TWI438471B (en) * | 2011-08-24 | 2014-05-21 | Largan Precision Co Ltd | Optical image capturing lenses |
| WO2013140718A1 (en) * | 2012-03-22 | 2013-09-26 | 富士フイルム株式会社 | Imaging lens and imaging device |
| JP2014041184A (en) * | 2012-08-21 | 2014-03-06 | Ricoh Co Ltd | Imaging lens, image reading apparatus, and image forming device |
-
2015
- 2015-02-17 CN CN201510085582.2A patent/CN105988199B/en active Active
- 2015-02-17 CN CN201810439279.1A patent/CN108710193B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5642229A (en) * | 1993-06-15 | 1997-06-24 | Mitsubishi Denki Kabushiki Kaisha | Projection lens unit |
| CN202837662U (en) * | 2012-06-19 | 2013-03-27 | 大立光电股份有限公司 | Image lens system group |
| CN203673137U (en) * | 2013-01-30 | 2014-06-25 | 康达智株式会社 | Pick-up lens |
| CN203941337U (en) * | 2013-07-02 | 2014-11-12 | 富士胶片株式会社 | Pick-up lens and possess the camera head of pick-up lens |
| CN203965708U (en) * | 2013-09-11 | 2014-11-26 | 康达智株式会社 | Pick-up lens |
| CN204065539U (en) * | 2014-01-10 | 2014-12-31 | 株式会社光学逻辑 | Pick-up lens |
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|---|---|
| CN108710193A (en) | 2018-10-26 |
| CN105988199A (en) | 2016-10-05 |
| CN108710193B (en) | 2020-09-01 |
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