CN106970452A - Imagery optical lens group, image-taking device and electronic installation - Google Patents
Imagery optical lens group, image-taking device and electronic installation Download PDFInfo
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- CN106970452A CN106970452A CN201610020537.3A CN201610020537A CN106970452A CN 106970452 A CN106970452 A CN 106970452A CN 201610020537 A CN201610020537 A CN 201610020537A CN 106970452 A CN106970452 A CN 106970452A
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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
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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
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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Abstract
The invention discloses a kind of imagery optical lens group, image-taking device and electronic installation, imagery optical lens group sequentially includes the first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens by thing side to image side.First lens have positive refracting power, and its thing side surface is convex surface at dipped beam axle.The negative refracting power of second lens tool, its thing side surface is concave surface at dipped beam axle.The surface of 3rd lens two is all aspherical.The negative refracting power of 4th lens tool, its thing side surface is concave surface at dipped beam axle, and its image side surface is concave surface at dipped beam axle, and its image side surface has an at least convex surface in off-axis place, and its two surface is all aspherical.5th lens have positive refracting power, and its two surface is all aspherical.The lens of imagery optical lens group are in being respectively provided with an airspace on optical axis between five, and each two adjacent lens.Invention additionally discloses the image-taking device with above-mentioned imagery optical lens group and the electronic installation with image-taking device.
Description
Technical field
It is more particularly to a kind of the present invention relates to a kind of imagery optical lens group, image-taking device and electronic installation
Suitable for the imagery optical lens group and image-taking device of electronic installation.
Background technology
With flourishing for miniaturization pick-up lens, the demand of minisize image acquisition module is increasingly improved, and general
The photo-sensitive cell of pick-up lens is nothing more than being photosensitive coupling element (Charge Coupled Device, CCD)
Or Complimentary Metal-Oxide semiconductor element (Complementary Metal-Oxide Semiconductor
Sensor, CMOS Sensor) two kinds, and progressing greatly with semiconductor technology so that the pixel of photo-sensitive cell
Size reduction, along with electronic product is using the good and compact external form of function as development trend now, therefore,
The miniaturization pick-up lens for possessing good image quality becomes main flow in the market.
In recent years, the optical lens with characteristic of looking in the distance also gradually is equipped on lightening high-order electronic product
On, to meet various demands of the high-order electronic product in pixel and image quality.However, traditional looks in the distance
Camera lens has the shortcomings that overall length is long, aperture is too small, image quality is not good and volume is excessive, and is difficult to meet
The demand of high standard electronic product.Look in the distance characteristic therefore it provides one kind has and while high imaging product can be met
One of the optical system of matter demand, the problem of actually current industry is suddenly to be solved.
The content of the invention
It is an object of the invention to provide a kind of imagery optical lens group, image-taking device and electronic installation,
Wherein the 4th lens have negative refracting power, and the 4th lens thing side surface and image side surface are all at dipped beam axle
Concave surface, helps to shorten the back focal length of imagery optical lens group.In addition, the 4th lens image side surface in from
There is an at least convex surface at axle, the chief ray angle (Chief Ray Angle, CRA) on image periphery can be suppressed,
Enable the clearer pick-up image of photo-sensitive cell.In addition, the 5th lens have positive refracting power, first can be corrected
Lens to the 4th lens because refracting power it is too strong produced by aberration.When a specific condition is satisfied, contribute to slow down
Second lens perimeter change in shape, it is to avoid produce excessive veiling glare because of the second lens face type overbending.Separately
Outside, contribute to provide imagery optical lens group appropriate back focal length, it is to avoid the face type of the 5th lens is excessively curved
It is bent and cause back focal length long or too short.Furthermore, help to lift the characteristic of looking in the distance of imagery optical lens group.
The present invention provides a kind of imagery optical lens group, by thing side to image side sequentially comprising the first lens, the
Two lens, the 3rd lens, the 4th lens and the 5th lens.First lens have positive refracting power, its thing side
Surface is convex surface at dipped beam axle.Second lens have negative refracting power, and its thing side surface is at dipped beam axle to be recessed
Face.3rd lens thing side surface and image side surface are all aspherical.4th lens have negative refracting power, its thing
Side surface is concave surface at dipped beam axle, and its image side surface is concave surface at dipped beam axle, and its image side surface is in off-axis
Place has an at least convex surface, and its thing side surface and image side surface are all aspherical.5th lens have positive flexion
Power, its thing side surface and image side surface are all aspherical.The lens sum of imagery optical lens group is five.
In light between each two adjacent lens in first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens
An airspace is respectively provided with axle.The focal length of imagery optical lens group is f, the second lens thing side surface
Radius of curvature is R3, and the radius of curvature on the second lens image side surface is R4, the song on the 5th lens image side surface
Rate radius is R10, and it meets following condition：
(R3+R4)/(R3-R4)<0.50；And
f/|R10|<1.20。
The present invention provides a kind of image-taking device, photosensitive comprising foregoing imagery optical lens group and an electronics
Element, wherein electronics photo-sensitive cell are arranged on an imaging surface of imagery optical lens group.
The present invention provides a kind of electronic installation, includes foregoing image-taking device.
The present invention a kind of imagery optical lens group is separately provided, by thing side to image side sequentially comprising the first lens,
Second lens, the 3rd lens, the 4th lens and the 5th lens.First lens have positive refracting power, its thing
Side surface is convex surface at dipped beam axle.Second lens have negative refracting power, and its thing side surface is at dipped beam axle
Concave surface.3rd lens thing side surface and image side surface are all aspherical.4th lens have negative refracting power, its
Thing side surface at dipped beam axle be concave surface, its image side surface at dipped beam axle be concave surface, its image side surface in from
There is an at least convex surface, its thing side surface and image side surface are all aspherical at axle.5th lens, which have, just bends
Power is rolled over, its thing side surface and image side surface are all aspherical.The lens sum of imagery optical lens group is five
Piece.In first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens between each two adjacent lens
In being respectively provided with an airspace on optical axis.The focal length of imagery optical lens group is f, the second lens thing side table
The radius of curvature in face is R3, and the radius of curvature on the second lens image side surface is R4, imagery optical lens group
Maximum image height be ImgH, it meets following condition：
(R3+R4)/(R3-R4)<0.50；And
0.25<ImgH/f<0.55。
The present invention separately provides a kind of image-taking device, includes foregoing imagery optical lens group and a sense electronicses
Optical element, wherein electronics photo-sensitive cell are arranged on an imaging surface of imagery optical lens group.
The present invention separately provides a kind of electronic installation, includes foregoing image-taking device.
When (R3+R4)/(R3-R4) meets above-mentioned condition, help to slow down the second lens perimeter change in shape,
Avoid producing excessive veiling glare because of the second lens face type overbending.
As f/ | R10 | when meeting above-mentioned condition, help to provide imagery optical lens group appropriate rear Jiao
Cause back focal length long or too short away from, it is to avoid the face type overbending of the 5th lens.
When ImgH/f meets above-mentioned condition, help to lift the characteristic of looking in the distance of imagery optical lens group.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as to the present invention's
Limit.
Brief description of the drawings
Fig. 1 illustrates the image-taking device schematic diagram according to first embodiment of the invention；
Fig. 2 is sequentially spherical aberration, astigmatism and the distortion curve figure of first embodiment from left to right；
Fig. 3 illustrates the image-taking device schematic diagram according to second embodiment of the invention；
Fig. 4 is sequentially spherical aberration, astigmatism and the distortion curve figure of second embodiment from left to right；
Fig. 5 illustrates the image-taking device schematic diagram according to third embodiment of the invention；
Fig. 6 is sequentially spherical aberration, astigmatism and the distortion curve figure of 3rd embodiment from left to right；
Fig. 7 illustrates the image-taking device schematic diagram according to fourth embodiment of the invention；
Fig. 8 is sequentially spherical aberration, astigmatism and the distortion curve figure of fourth embodiment from left to right；
Fig. 9 illustrates the image-taking device schematic diagram according to fifth embodiment of the invention；
Figure 10 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 5th embodiment from left to right；
Figure 11 illustrates the image-taking device schematic diagram according to sixth embodiment of the invention；
Figure 12 is sequentially spherical aberration, astigmatism and the distortion curve figure of sixth embodiment from left to right；
Figure 13 illustrates the image-taking device schematic diagram according to seventh embodiment of the invention；
Figure 14 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 7th embodiment from left to right；
Figure 15 illustrates the image-taking device schematic diagram according to eighth embodiment of the invention；
Figure 16 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 8th embodiment from left to right；
Figure 17 illustrates a kind of schematic diagram of electronic installation according to the present invention；
Figure 18 illustrates the schematic diagram of another electronic installation according to the present invention；
Figure 19 illustrates the schematic diagram of still another electronic installation according to the present invention.
【Fu No. Said are bright】
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
Infrared ray filters out optical element ︰ 160,260,360,460,560,660,760,860
Cheng Xiang Mian ︰ 170,270,370,470,570,670,770,870
Electronics photo-sensitive cell ︰ 180,280,380,480,580,680,780,880
The lens image side surfaces of BL ︰ the 5th are to imaging surface in the distance on optical axis
The f-number of Fno ︰ imagery optical lens groups
The focal length of f ︰ imagery optical lens groups
The focal length of the lens of f2 ︰ second
The focal length of the lens of f3 ︰ the 3rd
The focal length of the lens of f4 ︰ the 4th
The half at maximum visual angle in HFOV ︰ imagery optical lens groups
ImgH：The maximum image height of imagery optical lens group
The radius of curvature of R3 ︰ the second lens things side surface
The radius of curvature on R4 ︰ the second lens image sides surface
The radius of curvature of the lens thing side surfaces of R7 ︰ the 4th
The radius of curvature on the lens image side surfaces of R8 ︰ the 4th
The radius of curvature on the lens image side surfaces of R10 ︰ the 5th
TL：First lens thing side surface is to imaging surface in the distance on optical axis
T12：First lens and the second lens are in the spacing distance on optical axis
T23：Second lens and the 3rd lens are in the spacing distance on optical axis
T34：3rd lens and the 4th lens are in the spacing distance on optical axis
T45：4th lens 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
V3：The abbe number of 3rd lens
V4：The abbe number of 4th lens
V5：The abbe number of 5th lens
Embodiment
The structural principle and operation principle of the present invention are described in detail below in conjunction with the accompanying drawings：
Imagery optical lens group by thing side to image side sequentially comprising the first lens, the second lens, the 3rd lens,
4th lens and the 5th lens.Wherein, the lens sum in imagery optical lens group is five.
In first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens between each two adjacent lens
In being respectively provided with an airspace, that is, the first lens, the second lens, the 3rd lens, the 4th lens on optical axis
Can be five single disengaged (non-bonding) lens with the 5th lens.Because the technique of cemented lens is more disengaged
Lens are complicated, especially need to possess the curved surface of high accuracy on the composition surface of two lens, to reach that two lens are engaged
When high adaptation, and during engagement, more likely because off normal and caused by move axle defect, influence is overall
Optical imagery quality.Therefore, the first lens in image capture microscope group to the 5th lens can be single using five
Disengaged lens configuration, and then the problem that be effectively improved cemented lens.
First lens have positive refracting power, and its thing side surface is convex surface at dipped beam axle.Whereby, it is possible to provide into
As the positive refracting power with optical lens group enough, and help to shorten the total length of imagery optical lens group.
Second lens have negative refracting power, and its thing side surface is concave surface at dipped beam axle.Whereby, can be corrected
Aberration produced by one lens is to lift image quality.
3rd lens thing side surface in off-axis place can have an at least concave surface, and the 3rd lens image side surface in from
Also there can be an at least concave surface at axle.Whereby, the light that can suppress off-axis visual field is incident on photo-sensitive cell
Angle, to increase the receiving efficiency of image photo-sensitive cell, the aberration of further modified off-axis visual field.
4th lens have negative refracting power, and its thing side surface is concave surface in dipped beam axle, and its image side surface is in dipped beam
It is concave surface at axle.Whereby, the back focal length of shortening imagery optical lens group is contributed to.In addition, the 4th lens
Image side surface has an at least convex surface in off-axis place, can suppress the chief ray angle on image periphery, make photosensitive member
Part can clearer pick-up image.
5th lens have positive refracting power, and its thing side surface can be convex surface in dipped beam axle, and its image side surface is near
Optical axis can be convex surface.Whereby, can correct the first lens to the 4th lens because refracting power it is too strong produced by aberration.
The radius of curvature of second lens thing side surface is R3, and the radius of curvature on the second lens image side surface is R4,
It meets following condition：(R3+R4)/(R3-R4)<0.50.Whereby, contribute to slow down the second lens perimeter
Change in shape, it is to avoid produce excessive veiling glare because of the second lens face type overbending.It is preferred that it can enter
One step meets following condition：(R3+R4)/(R3-R4)<0.More preferably, it can further meet following bar
Part：-2.5<(R3+R4)/(R3-R4)<0.
The focal length of imagery optical lens group is f, and the radius of curvature on the 5th lens image side surface is R10, its
Meet following condition：f/|R10|<1.20.Whereby, contribute to provide imagery optical lens group appropriate
Back focal length, it is to avoid the face type overbending of the 5th lens and cause back focal length long or too short.Specifically,
When the 5th lens image side surface is convex surface at dipped beam axle, above-mentioned condition can avoid back focal length from excessively elongating.
When the 5th lens image side surface is concave surface at dipped beam axle, above-mentioned condition can then avoid back focal length from excessively contracting
It is short.It is preferred that it can further meet following condition：f/|R10|<0.75.
(i.e. effective sensing region of electronics photo-sensitive cell is diagonal for the maximum image height of imagery optical lens group
The half of line overall length) it is ImgH, the focal length of imagery optical lens group is f, and it meets following condition：0.25
<ImgH/f<0.55.Whereby, the characteristic of looking in the distance of lifting imagery optical lens group is contributed to.
First lens and the second lens are T12 in the spacing distance on optical axis, the second lens and the 3rd lens in
Spacing distance on optical axis is T23, and the 3rd lens and the 4th lens are T34 in the spacing distance on optical axis,
4th lens and the 5th lens are T45 in the spacing distance on optical axis, and it can meet following condition：1.0<
T34/(T12+T23+T45)<4.0.Whereby, contribute to obtain the spacing distance between each two adjacent lens
To better suited distribution to reduce the susceptibility of imagery optical lens group, while making imagery optical lens group
Have the effect of looking in the distance concurrently.
The focal length of second lens is f2, and the focal length of the 4th lens is f4, and it can meet following condition：f4/f2
<1.0.Whereby, contribute to make the second lens and the refracting power of the 4th lens suitably arrange in pairs or groups, to avoid second
The change in shape of lens is excessive.
The abbe number of first lens is V1, and the abbe number of the second lens is V2, the dispersion of the 3rd lens
Coefficient is V3, and the abbe number of the 4th lens is V4, and the abbe number of the 5th lens is V5, and it can meet
Following condition：0.45<(V2+V3+V5)/(V1+V4)<0.75.Whereby, can be in aberration amendment and astigmatism
Obtained between amendment well balanced.
3rd lens and the 4th lens are T34, the 5th lens image side surface to one in the spacing distance on optical axis
Imaging surface is BL in the distance on optical axis, and it can meet following condition：1.20<T34/BL<2.5.Borrow
This, can control the distribution and change of image chief ray angle, be imitated with the reception for effectively lifting image photo-sensitive cell
Rate.
The radius of curvature of 4th lens thing side surface is R7, and the radius of curvature on the 4th lens image side surface is R8,
It can meet following condition：-1.0<R7/R8<0.Whereby, the 4th lens thing side surface and image side surface
Radius of curvature contribute to further shorten imagery optical lens group back focal length.
First lens thing side surface is TL in the distance on optical axis to imaging surface, imagery optical lens group
Focal length is f, and it can meet following condition：0.75<TL/f<1.10.Whereby, imaging can be shortened to use up
The total length of lens group is learned, there is characteristic of looking in the distance with season imagery optical lens group.
The focal length of imagery optical lens group is f, and the focal length of the second lens is f2, and the focal length of the 3rd lens is
F3, the focal length of the 4th lens is f4, and it can meet following condition：-4.0<(f/f2)+(f/f3)+(f/f4)
<-2.0.Whereby, contribute to correct the image curvature caused by the first lens.
First lens and the second lens are T12 in the spacing distance on optical axis, the second lens and the 3rd lens in
Spacing distance on optical axis is T23, and it can meet following condition：0<T23/T12<1.75.Whereby,
The spacing between the first lens and the second lens can be avoided too short, contribute to reduction assembling difficulty to lift assembling
Yield.
The abbe number of 4th lens is V4, and the abbe number of the 5th lens is V5, and it can meet following bar
Part：1.8<V4/V5<3.5.Whereby, contribute to correct aberration.
The focal length of imagery optical lens group is f, and the focal length of the 3rd lens is f3, and it can meet following condition：
-1.2<f/f3≦0.Whereby, can efficient hardening lens error correction effect, to lift image quality.
The invention discloses imagery optical lens group in, the configuration of aperture can for preposition aperture or in put light
Circle.Wherein preposition aperture implies that aperture is arranged between object and the first lens, in put aperture and then represent aperture
It is arranged between the first lens and imaging surface.If aperture is preposition aperture, going out for imagery optical lens group can be made
Penetrate pupil (Exit Pupil) and produce longer distance with imaging surface, make it have telecentricity (Telecentric) effect
Really, and can increase electronics photo-sensitive cell CCD or CMOS receive image efficiency；If in put aperture,
Contribute to expand the angle of visual field of imagery optical lens group, make imagery optical lens group that there is wide-angle lens
Advantage.
The invention discloses imagery optical lens group in, the material of lens can be plastic cement or glass.Work as lens
Material be glass, can increase refracting power configuration the free degree., then can be with separately when lens material is plastic cement
Effectively reduce production cost.In addition, can be aspherical to hold in being set on lens surface aspherical (ASP)
The shape beyond sphere is easily fabricated to, more controlled variable is obtained, to cut down aberration, and then reduces institute
The number of lens need to be used, therefore can effectively reduce the total length of imagery optical lens group.
The invention discloses imagery optical lens group in, if lens surface be convex surface and do not define the convex surface position
When putting, then it represents that convex surface can be located at lens surface dipped beam axle；If lens surface is concave surface and not define this recessed
During the position of face, then it represents that concave surface can be located at lens surface dipped beam axle.If the non-boundary of refracting power or focal length of lens
During its fixed regional location, then it represents that the refracting power or focal length of the lens can be refracting power of the lens at dipped beam axle
Or focal length.
The invention discloses imagery optical lens group in, the imaging surface of imagery optical lens group is according to its correspondence
Electronics photo-sensitive cell difference, for a plane or can have the curved surface of any curvature, particularly relate to concave surface towards past
Thing side to curved surface.
The invention discloses imagery optical lens group in, settable to have an at least diaphragm, its position can be set
Before the first lens, between each lens or after last lens, the species such as light light of shining of the diaphragm
Door screen (Glare Stop) or field stop (Field Stop) etc., to reduce veiling glare, help to lift shadow
As quality.
The present invention more provides a kind of image-taking device, and it is photosensitive comprising foregoing imagery optical lens group and electronics
Element, wherein electronics photo-sensitive cell are arranged on the imaging surface of imagery optical lens group.It is preferred that described
Image-taking device can further include lens barrel, support device (Holder Member) or its combination.
Figure 17,18 and 19 are refer to, image-taking device 10 many-sided can be applied to intelligent mobile phone (such as Figure 17
It is shown), tablet PC (as shown in figure 18) and Wearable device (as shown in figure 19) etc..It is preferred that
Electronic installation can further include control unit, display unit, storage element, random access memory (RAM)
Or its combination.
The more visual demand of imagery optical lens group of the present invention is applied in the optical system of mobile focusing, and
Have the characteristic of excellent lens error correction and good image quality concurrently.The present invention many-sided can be also applied to three-dimensional (3D)
Image capture, digital camera, mobile device, tablet PC, intelligent electric are regarded, network monitoring device,
In the electronic installations such as drive recorder, reversing developing apparatus, somatic sensation television game machine and Wearable device.Before take off electricity
Sub-device is only the practice example for exemplarily illustrating the present invention, not limits the image-taking device of the present invention
Operation strategies.
According to above-mentioned embodiment, specific embodiment set forth below simultaneously coordinates accompanying drawing to be described in detail.
<First embodiment>
Fig. 1 and Fig. 2 is refer to, wherein Fig. 1 illustrates the image-taking device signal according to first embodiment of the invention
Figure, Fig. 2 is sequentially spherical aberration, astigmatism and the distortion curve figure of first embodiment from left to right.By Fig. 1
Understand, image-taking device includes imagery optical lens group (not another label) and electronics photo-sensitive cell 180.Imaging
With optical lens group by thing side to image side sequentially comprising aperture 100, the first lens 110, the second lens 120,
3rd lens 130, the 4th lens 140, the 5th lens 150, infrared ray filter out filter element (IR-cut
Filter) 160 with imaging surface 170.Wherein, electronics photo-sensitive cell 180 is arranged on imaging surface 170.Into
The lens (110-150) of picture optical lens group are five.First lens 110, the second lens the 120, the 3rd
In being respectively provided with one on optical axis between each two adjacent lens in lens 130, the 4th lens 140 and the 5th lens 150
Airspace.
First lens 110 have positive refracting power, and are plastic cement material, and its thing side surface 111 is at dipped beam axle
For convex surface, its image side surface 112 is concave surface at dipped beam axle, and its two surface is all aspherical.
Second lens 120 have negative refracting power, and are plastic cement material, and its thing side surface 121 is at dipped beam axle
For concave surface, its image side surface 122 is convex surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 130 are plastic cement material, and its thing side surface 131 is plane, its image side table at dipped beam axle
Face 132 is plane at dipped beam axle, and its two surface is all aspherical, and its thing side surface 131 is in off-axis place's tool
There is an at least concave surface, its image side surface 132 has an at least concave surface in off-axis place.
4th lens 140 have negative refracting power, and are plastic cement material, and its thing side surface 141 is at dipped beam axle
For concave surface, its image side surface 142 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 142 has an at least convex surface in off-axis place.
5th lens 150 have positive refracting power, and are plastic cement material, and its thing side surface 151 is at dipped beam axle
For convex surface, its image side surface 152 is plane at dipped beam axle, and its two surface is all aspherical.
The material that infrared ray filters out filter element 160 is glass, and it is arranged at the 5th lens 150 and imaging surface
Between 170, the focal length of optical shooting lens group is had no effect on.
The aspherical fitting equation of above-mentioned each lens is expressed as follows：
；Wherein：
X：Apart from the point that optical axis is Y on aspherical, it is with being tangential on the tangent plane of intersection point on aspherical optical axis
Relative distance；
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 imagery optical lens group of first embodiment, the focal length of imagery optical lens group is f, imaging
With one that the f-number (F-number) of optical lens group is maximum visual angle in Fno, imagery optical lens group
Half is HFOV, and its numerical value is as follows：F=6.29 millimeters (mm), Fno=3.00, HFOV=24.9 degree
(deg.)。
The abbe number of first lens 110 is V1, and the abbe number of the second lens 120 is V2, and the 3rd is saturating
The abbe number of mirror 130 is V3, and the abbe number of the 4th lens 140 is V4, the color of the 5th lens 150
It is V5 to dissipate coefficient, and it meets following condition：(V2+V3+V5)/(V1+V4)=0.54.
The abbe number of 4th lens 140 is V4, and the abbe number of the 5th lens 150 is V5, and it meets
Following condition：V4/V5=2.75.
First lens 110 and the second lens 120 are T12, the second lens 120 in the spacing distance on optical axis
With the 3rd lens 130 in the spacing distance on optical axis be T23, it meets following condition：T23/T12=0.32.
First lens 110 and the second lens 120 are T12, the second lens 120 in the spacing distance on optical axis
In the spacing distance on optical axis be T23 with the 3rd lens 130, the 3rd lens 130 and the 4th lens 140 in
Spacing distance on optical axis is T34, and the 4th lens 140 and the 5th lens 150 are in the spacing distance on optical axis
For T45, it meets following condition：T34/ (T12+T23+T45)=2.73.
3rd lens 130 and the 4th lens 140 are T34, the 5th lens image side in the spacing distance on optical axis
Surface 152 is BL in the distance on optical axis to imaging surface 170, and it meets following condition：T34/BL=1.84.
First lens thing side surface 111 to imaging surface 170 in the distance on optical axis be TL, imagery optical
The focal length of lens group is f, and it meets following condition：TL/f=0.89.
The maximum image height of imagery optical lens group is ImgH, and the focal length of imagery optical lens group is
F, it meets following condition：ImgH/f=0.47.
The radius of curvature of second lens thing side surface 121 is R3, the curvature on the second lens image side surface 122
Radius is R4, and it meets following condition：(R3+R4)/(R3-R4)=- 1.15.
The radius of curvature of 4th lens thing side surface 141 is R7, the curvature on the 4th lens image side surface 142
Radius is R8, and it meets following condition：R7/R8=-0.06.
The focal length of imagery optical lens group is f, and the radius of curvature on the 5th lens image side surface 152 is R10,
It meets following condition：F/ | R10 |=0.
The focal length of imagery optical lens group is f, and the focal length of the second lens 120 is f2, the 3rd lens 130
Focal length be f3, the focal lengths of the 4th lens 140 is f4, and it meets following condition：
(f/f2)+(f/f3)+(f/f4)=- 2.55.
The focal length of imagery optical lens group is f, and the focal length of the 3rd lens 130 is f3, and it meets following bar
Part：F/f3=0.
The focal length of second lens 120 is f2, and the focal length of the 4th lens 140 is f4, and it meets following condition：
F4/f2=0.80.
Coordinate with reference to following table one and table two.
Table one is the list of the detailed structured data, wherein radius of curvature, thickness and focal length of Fig. 1 first embodiments
Position is millimetre (mm), and surface 0 to 14 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
Then represent each rank asphericity coefficient of surface the 4 to 16th.In addition, following embodiment form is each reality of correspondence
Apply table one and table two of the definition of data in the schematic diagram and aberration curve figure of example, form all with first embodiment
Definition it is identical, not in this to go forth.
<Second embodiment>
Fig. 3 and Fig. 4 is refer to, wherein Fig. 3 illustrates the image-taking device signal according to second embodiment of the invention
Figure, Fig. 4 is sequentially spherical aberration, astigmatism and the distortion curve figure of second embodiment from left to right.By Fig. 3
Understand, image-taking device includes imagery optical lens group (not another label) and electronics photo-sensitive cell 280.Imaging
With optical lens group by thing side to image side sequentially comprising the first lens 210, aperture 200, the second lens 220,
3rd lens 230, the 4th lens 240, the 5th lens 250, infrared ray filter out filter element 260 with into
Image planes 270.Wherein, electronics photo-sensitive cell 280 is arranged on imaging surface 270.Imagery optical lens group
Lens (210-250) be five.First lens 210, the second lens 220, the 3rd lens the 230, the 4th
In being respectively provided with an airspace on optical axis between each two adjacent lens in the lens 250 of lens 240 and the 5th.
First lens 210 have positive refracting power, and are plastic cement material, and its thing side surface 211 is at dipped beam axle
For convex surface, its image side surface 212 is convex surface at dipped beam axle, and its two surface is all aspherical.
Second lens 220 have negative refracting power, and are plastic cement material, and its thing side surface 221 is at dipped beam axle
For concave surface, its image side surface 222 is plane at dipped beam axle, and its two surface is all aspherical.
3rd lens 230 have negative refracting power, and are plastic cement material, and its thing side surface 231 is at dipped beam axle
For concave surface, its image side surface 232 is convex surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 231 has an at least concave surface in off-axis place, and its image side surface 232 has an at least concave surface in off-axis place.
4th lens 240 have negative refracting power, and are plastic cement material, and its thing side surface 241 is at dipped beam axle
For concave surface, its image side surface 242 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 242 has an at least convex surface in off-axis place.
5th lens 250 have positive refracting power, and are plastic cement material, and its thing side surface 251 is at dipped beam axle
For convex surface, its image side surface 252 is concave surface at dipped beam axle, and its two surface is all aspherical.
The material that infrared ray filters out filter element 260 is glass, and it is arranged at the 5th lens 250 and imaging surface
Between 270, the focal length of optical shooting lens group is had no effect on.
It please coordinate with reference to following table three and table four.
In second embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<3rd embodiment>
Fig. 5 and Fig. 6 is refer to, wherein Fig. 5 illustrates the image-taking device signal according to third embodiment of the invention
Figure, Fig. 6 is sequentially spherical aberration, astigmatism and the distortion curve figure of 3rd embodiment from left to right.By Fig. 5
Understand, image-taking device includes imagery optical lens group (not another label) and electronics photo-sensitive cell 380.Imaging
With optical lens group by thing side to image side sequentially comprising aperture 300, the first lens 310, the second lens 320,
3rd lens 330, the 4th lens 340, the 5th lens 350, infrared ray filter out filter element 360 with into
Image planes 370.Wherein, electronics photo-sensitive cell 380 is arranged on imaging surface 370.Imagery optical lens group
Lens (310-350) be five.First lens 310, the second lens 320, the 3rd lens the 330, the 4th
In being respectively provided with an airspace on optical axis between each two adjacent lens in the lens 350 of lens 340 and the 5th.
First lens 310 have positive refracting power, and are plastic cement material, and its thing side surface 311 is at dipped beam axle
For convex surface, its image side surface 312 is concave surface at dipped beam axle, and its two surface is all aspherical.
Second lens 320 have negative refracting power, and are plastic cement material, and its thing side surface 321 is at dipped beam axle
For concave surface, its image side surface 322 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 330 have negative refracting power, and are plastic cement material, and its thing side surface 331 is at dipped beam axle
For convex surface, its image side surface 332 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 331 has an at least concave surface in off-axis place, and its image side surface 332 has an at least concave surface in off-axis place.
4th lens 340 have negative refracting power, and are plastic cement material, and its thing side surface 341 is at dipped beam axle
For concave surface, its image side surface 342 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 342 has an at least convex surface in off-axis place.
5th lens 350 have positive refracting power, and are plastic cement material, and its thing side surface 351 is at dipped beam axle
For convex surface, its image side surface 352 is concave surface at dipped beam axle, and its two surface is all aspherical.
The material that infrared ray filters out filter element 360 is glass, and it is arranged at the 5th lens 350 and imaging surface
Between 370, the focal length of optical shooting lens group is had no effect on.
It please coordinate with reference to following table five and table six.
In 3rd embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<Fourth embodiment>
Fig. 7 and Fig. 8 is refer to, wherein Fig. 7 illustrates the image-taking device signal according to fourth embodiment of the invention
Figure, Fig. 8 is sequentially spherical aberration, astigmatism and the distortion curve figure of fourth embodiment from left to right.By Fig. 7
Understand, image-taking device includes imagery optical lens group (not another label) and electronics photo-sensitive cell 480.Imaging
With optical lens group by thing side to image side sequentially comprising aperture 400, the first lens 410, the second lens 420,
3rd lens 430, the 4th lens 440, the 5th lens 450, infrared ray filter out filter element 460 with into
Image planes 470.Wherein, electronics photo-sensitive cell 480 is arranged on imaging surface 470.Imagery optical lens group
Lens (410-450) be five.First lens 410, the second lens 420, the 3rd lens the 430, the 4th
In being respectively provided with an airspace on optical axis between each two adjacent lens in the lens 450 of lens 440 and the 5th.
First lens 410 have positive refracting power, and are plastic cement material, and its thing side surface 411 is at dipped beam axle
For convex surface, its image side surface 412 is concave surface at dipped beam axle, and its two surface is all aspherical.
Second lens 420 have negative refracting power, and are plastic cement material, and its thing side surface 421 is at dipped beam axle
For concave surface, its image side surface 422 is convex surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 430 have negative refracting power, and are plastic cement material, and its thing side surface 431 is at dipped beam axle
For concave surface, its image side surface 432 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 431 has an at least concave surface in off-axis place, and its image side surface 432 has an at least concave surface in off-axis place.
4th lens 440 have negative refracting power, and are plastic cement material, and its thing side surface 441 is at dipped beam axle
For concave surface, its image side surface 442 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 442 has an at least convex surface in off-axis place.
5th lens 450 have positive refracting power, and are plastic cement material, and its thing side surface 451 is at dipped beam axle
For convex surface, its image side surface 452 is convex surface at dipped beam axle, and its two surface is all aspherical.
The material that infrared ray filters out filter element 460 is glass, and it is arranged at the 5th lens 450 and imaging surface
Between 470, the focal length of optical shooting lens group is had no effect on.
It please coordinate with reference to following table seven and table eight.
In fourth embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<5th embodiment>
Fig. 9 and Figure 10 is refer to, wherein Fig. 9 is illustrated to be shown according to the image-taking device of fifth embodiment of the invention
It is intended to, Figure 10 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 5th embodiment from left to right.By scheming
9 understand, image-taking device includes imagery optical lens group (not another label) and electronics photo-sensitive cell 580.Into
Picture optical lens group by thing side to image side sequentially comprising aperture 500, the first lens 510, the second lens 520,
3rd lens 530, the 4th lens 540, the 5th lens 550, infrared ray filter out filter element 560 with into
Image planes 570.Wherein, electronics photo-sensitive cell 580 is arranged on imaging surface 570.Imagery optical lens group
Lens (510-550) be five.First lens 510, the second lens 520, the 3rd lens the 530, the 4th
In being respectively provided with an airspace on optical axis between each two adjacent lens in the lens 550 of lens 540 and the 5th.
First lens 510 have positive refracting power, and are plastic cement material, and its thing side surface 511 is at dipped beam axle
For convex surface, its image side surface 512 is convex surface at dipped beam axle, and its two surface is all aspherical.
Second lens 520 have negative refracting power, and are plastic cement material, and its thing side surface 521 is at dipped beam axle
For concave surface, its image side surface 522 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 530 have negative refracting power, and are plastic cement material, and its thing side surface 531 is at dipped beam axle
For convex surface, its image side surface 532 is concave surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 531 has an at least concave surface in off-axis place, and its image side surface 532 has an at least concave surface in off-axis place.
4th lens 540 have negative refracting power, and are plastic cement material, and its thing side surface 541 is at dipped beam axle
For concave surface, its image side surface 542 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 542 has an at least convex surface in off-axis place.
5th lens 550 have positive refracting power, and are plastic cement material, and its thing side surface 551 is at dipped beam axle
For convex surface, its image side surface 552 is concave surface at dipped beam axle, and its two surface is all aspherical.
The material that infrared ray filters out filter element 560 is glass, and it is arranged at the 5th lens 550 and imaging surface
Between 570, the focal length of optical shooting lens group is had no effect on.
It please coordinate with reference to following table nine and table ten.
In 5th embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<Sixth embodiment>
Figure 11 and Figure 12 is refer to, wherein Figure 11 illustrates the image-taking device according to sixth embodiment of the invention
Schematic diagram, Figure 12 is sequentially spherical aberration, astigmatism and the distortion curve figure of sixth embodiment from left to right.By
Figure 11 understands that image-taking device includes imagery optical lens group (not another label) and electronics photo-sensitive cell 680.
Imagery optical lens group sequentially includes aperture 600, the first lens 610, the second lens by thing side to image side
620th, the 3rd lens 630, the 4th lens 640, the 5th lens 650, infrared ray filter out filter element 660
With imaging surface 670.Wherein, electronics photo-sensitive cell 680 is arranged on imaging surface 670.Imagery optical is saturating
The lens (610-650) of microscope group are five.First lens 610, the second lens 620, the 3rd lens 630,
In being respectively provided with an airspace on optical axis between each two adjacent lens in 4th lens 640 and the 5th lens 650.
First lens 610 have positive refracting power, and are plastic cement material, and its thing side surface 611 is at dipped beam axle
For convex surface, its image side surface 612 is concave surface at dipped beam axle, and its two surface is all aspherical.
Second lens 620 have negative refracting power, and are plastic cement material, and its thing side surface 621 is at dipped beam axle
For concave surface, its image side surface 622 is convex surface at dipped beam axle, its two surface be all it is aspherical,.
3rd lens 630 have negative refracting power, and are plastic cement material, and its thing side surface 631 is at dipped beam axle
For concave surface, its image side surface 632 is convex surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 631 has an at least concave surface in off-axis place, and its image side surface 632 has an at least concave surface in off-axis place.
4th lens 640 have negative refracting power, and are plastic cement material, and its thing side surface 641 is at dipped beam axle
For concave surface, its image side surface 642 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 642 has an at least convex surface in off-axis place.
5th lens 650 have positive refracting power, and are plastic cement material, and its thing side surface 651 is at dipped beam axle
For concave surface, its image side surface 652 is convex surface at dipped beam axle, and its two surface is all aspherical.
The material that infrared ray filters out filter element 660 is glass, and it is arranged at the 5th lens 650 and imaging surface
Between 670, the focal length of optical shooting lens group is had no effect on.
It please coordinate with reference to following table 11 and table 12.
In sixth embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<7th embodiment>
Figure 13 and Figure 14 is refer to, wherein Figure 13 illustrates the image-taking device according to seventh embodiment of the invention
Schematic diagram, Figure 14 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 7th embodiment from left to right.By
Figure 13 understands that image-taking device includes imagery optical lens group (not another label) and electronics photo-sensitive cell 780.
Imagery optical lens group sequentially includes aperture 700, the first lens 710, the second lens by thing side to image side
720th, the 3rd lens 730, the 4th lens 740, the 5th lens 750, infrared ray filter out filter element 760
With imaging surface 770.Wherein, electronics photo-sensitive cell 780 is arranged on imaging surface 770.Imagery optical is saturating
The lens (710-750) of microscope group are five.First lens 710, the second lens 720, the 3rd lens 730,
In being respectively provided with an airspace on optical axis between each two adjacent lens in 4th lens 740 and the 5th lens 750.
First lens 710 have positive refracting power, and are plastic cement material, and its thing side surface 711 is at dipped beam axle
For convex surface, its image side surface 712 is convex surface at dipped beam axle, and its two surface is all aspherical.
Second lens 720 have negative refracting power, and are plastic cement material, and its thing side surface 721 is at dipped beam axle
For concave surface, its image side surface 722 is concave surface at dipped beam axle, its two surface be all it is aspherical,.
3rd lens 730 have positive refracting power, and are plastic cement material, and its thing side surface 731 is at dipped beam axle
For concave surface, its image side surface 732 is convex surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 731 has an at least concave surface in off-axis place, and its image side surface 732 has an at least concave surface in off-axis place.
4th lens 740 have negative refracting power, and are plastic cement material, and its thing side surface 741 is at dipped beam axle
For concave surface, its image side surface 742 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 742 has an at least convex surface in off-axis place.
5th lens 750 have positive refracting power, and are plastic cement material, and its thing side surface 751 is at dipped beam axle
For convex surface, its image side surface 752 is concave surface at dipped beam axle, and its two surface is all aspherical.
The material that infrared ray filters out filter element 760 is glass, and it is arranged at the 5th lens 750 and imaging surface
Between 770, the focal length of optical shooting lens group is had no effect on.
It please coordinate with reference to following table 13 and table 14.
In 7th embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
<8th embodiment>
Figure 15 and Figure 16 is refer to, wherein Figure 15 illustrates the image-taking device according to eighth embodiment of the invention
Schematic diagram, Figure 16 is sequentially spherical aberration, astigmatism and the distortion curve figure of the 8th embodiment from left to right.By
Figure 15 understands that image-taking device includes imagery optical lens group (not another label) and electronics photo-sensitive cell 880.
Imagery optical lens group sequentially includes aperture 800, the first lens 810, the second lens by thing side to image side
820th, the 3rd lens 830, the 4th lens 840, the 5th lens 850, infrared ray filter out filter element 860
With imaging surface 870.Wherein, electronics photo-sensitive cell 880 is arranged on imaging surface 870.Imagery optical is saturating
The lens (810-850) of microscope group are five.First lens 810, the second lens 820, the 3rd lens 830,
In being respectively provided with an airspace on optical axis between each two adjacent lens in 4th lens 840 and the 5th lens 850.
First lens 810 have positive refracting power, and are plastic cement material, and its thing side surface 811 is at dipped beam axle
For convex surface, its image side surface 812 is convex surface at dipped beam axle, and its two surface is all aspherical.
Second lens 820 have negative refracting power, and are plastic cement material, and its thing side surface 821 is at dipped beam axle
For concave surface, its image side surface 822 is concave surface at dipped beam axle, and its two surface is all aspherical.
3rd lens 830 have negative refracting power, and are plastic cement material, and its thing side surface 831 is at dipped beam axle
For concave surface, its image side surface 832 is convex surface at dipped beam axle, and its two surface is all aspherical, its thing side table
Face 831 has an at least concave surface in off-axis place, and its image side surface 832 has an at least concave surface in off-axis place.
4th lens 840 have negative refracting power, and are plastic cement material, and its thing side surface 841 is at dipped beam axle
For concave surface, its image side surface 842 is concave surface at dipped beam axle, and its two surface is all aspherical, its image side table
Face 842 has an at least convex surface in off-axis place.
5th lens 850 have positive refracting power, and are plastic cement material, and its thing side surface 851 is at dipped beam axle
For convex surface, its image side surface 852 is concave surface at dipped beam axle, and its two surface is all aspherical.
The material that infrared ray filters out filter element 860 is glass, and it is arranged at the 5th lens 850 and imaging surface
Between 870, the focal length of optical shooting lens group is had no effect on.
It please coordinate with reference to following table 15 and table 16.
In 8th embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, under
Definition described in table is all identical with first embodiment, and not in this to go forth.
Although the present invention is disclosed above with embodiment, so it 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 that can be used for a variety of modifications and variations, therefore
Protection scope of the present invention is worked as to be defined depending on the scope of which is defined in the appended claims.
Claims (27)
1. a kind of imagery optical lens group, it is characterised in that sequentially included by thing side to image side：
One first lens, with positive refracting power, its thing side surface is convex surface at dipped beam axle；
One second lens, with negative refracting power, its thing side surface is concave surface at dipped beam axle；
One the 3rd lens, its thing side surface and image side surface are all aspherical；
One the 4th lens, with negative refracting power, its thing side surface is concave surface, its image side surface at dipped beam axle
It is concave surface at dipped beam axle, its image side surface has an at least convex surface, its thing side surface and image side in off-axis place
Surface is all aspherical；And
One the 5th lens, with positive refracting power, its thing side surface and image side surface are all aspherical；
Wherein, the imagery optical lens group lens sum be five, first lens, second lens,
In being respectively provided with optical axis between each two adjacent lens in 3rd lens, the 4th lens and the 5th lens
Gas interval；
Wherein, the focal length of the imagery optical lens group is f, the radius of curvature of the second lens thing side surface
For R3, the radius of curvature on the second lens image side surface is R4, the curvature half on the 5th lens image side surface
Footpath is R10, and it meets following condition：
(R3+R4)/(R3-R4)<0.50；And
f/|R10|<1.20。
2. imagery optical lens group according to claim 1, it is characterised in that first lens
In the spacing distance on optical axis it is T12 with second lens, second lens and the 3rd lens are on optical axis
Spacing distance be T23, the 3rd lens and the 4th lens are T34 in the spacing distance on optical axis, should
4th lens and the 5th lens are T45 in the spacing distance on optical axis, and it meets following condition：
1.0<T34/(T12+T23+T45)<4.0。
3. imagery optical lens group according to claim 1, it is characterised in that second lens
Focal length be f2, the focal lengths of the 4th lens is f4, and it meets following condition：
f4/f2<1.0。
4. imagery optical lens group according to claim 1, it is characterised in that first lens
Abbe number be V1, the abbe numbers of second lens is V2, and the abbe number of the 3rd lens is V3,
The abbe number of 4th lens is V4, and the abbe number of the 5th lens is V5, and it meets following condition：
0.45<(V2+V3+V5)/(V1+V4)<0.75。
5. imagery optical lens group according to claim 1, it is characterised in that the imaging is used up
The focal length for learning lens group is f, and the radius of curvature on the 5th lens image side surface is R10, and it meets following bar
Part：
f/|R10|<0.75。
6. imagery optical lens group according to claim 1, it is characterised in that second lens
The radius of curvature of thing side surface is R3, and the radius of curvature on the second lens image side surface is R4, under it meets
Row condition：
-2.5<(R3+R4)/(R3-R4)<0。
7. imagery optical lens group according to claim 1, it is characterised in that the imaging is used up
The maximum image height for learning lens group is ImgH, and the focal length of the imagery optical lens group is f, under it meets
Row condition：
0.25<ImgH/f<0.55。
8. imagery optical lens group according to claim 1, it is characterised in that the 3rd lens
With the 4th lens in the spacing distance on optical axis be T34, the 5th lens image side surface a to imaging surface in
Distance on optical axis is BL, and it meets following condition：
1.20<T34/BL<2.5。
9. imagery optical lens group according to claim 1, it is characterised in that the 5th lens
Thing side surface is convex surface at dipped beam axle.
10. imagery optical lens group according to claim 9, it is characterised in that the 5th lens
Image side surface is convex surface at dipped beam axle.
11. imagery optical lens group according to claim 9, it is characterised in that the 4th lens
The radius of curvature of thing side surface is R7, and the radius of curvature on the 4th lens image side surface is R8, under it meets
Row condition：
-1.0<R7/R8<0。
12. imagery optical lens group according to claim 1, it is characterised in that first lens
Thing side surface is TL in the distance on optical axis to an imaging surface, and the focal length of the imagery optical lens group is f,
It meets following condition：
0.75<TL/f<1.10。
13. imagery optical lens group according to claim 1, it is characterised in that the imaging is used up
The focal length for learning lens group is f, and the focal length of second lens is f2, and the focal length of the 3rd lens is f3, should
The focal length of 4th lens is f4, and it meets following condition：
-4.0<(f/f2)+(f/f3)+(f/f4)<-2.0。
14. imagery optical lens group according to claim 1, it is characterised in that first lens
In the spacing distance on optical axis it is T12 with second lens, second lens and the 3rd lens are on optical axis
Spacing distance be T23, it meets following condition：
0<T23/T12<1.75。
15. imagery optical lens group according to claim 1, it is characterised in that the 3rd lens
Thing side surface has an at least concave surface in off-axis place, and the 3rd lens image side surface has at least in off-axis place
One concave surface.
16. imagery optical lens group according to claim 1, it is characterised in that the 4th lens
Abbe number be V4, the abbe numbers of the 5th lens is V5, and it meets following condition：
1.8<V4/V5<3.5。
17. imagery optical lens group according to claim 1, it is characterised in that the imaging is used up
The focal length for learning lens group is f, and the focal length of the 3rd lens is f3, and it meets following condition：
-1.2<f/f3≦0。
18. a kind of image-taking device, it is characterised in that include：
Imagery optical lens group as claimed in claim 1；And
One electronics photo-sensitive cell, wherein the electronics photo-sensitive cell are arranged at one one-tenth of the imagery optical lens group
In image planes.
19. a kind of electronic installation, it is characterised in that include：
Image-taking device as claimed in claim 18.
20. a kind of imagery optical lens group, it is characterised in that sequentially included by thing side to image side：
One first lens, with positive refracting power, its thing side surface is convex surface at dipped beam axle；
One second lens, with negative refracting power, its thing side surface is concave surface at dipped beam axle；
One the 3rd lens, its thing side surface and image side surface are all aspherical；
One the 4th lens, with negative refracting power, its thing side surface is concave surface, its image side surface at dipped beam axle
It is concave surface at dipped beam axle, its image side surface has an at least convex surface, its thing side surface and image side in off-axis place
Surface is all aspherical；And
One the 5th lens, with positive refracting power, its thing side surface and image side surface are all aspherical；
Wherein, the imagery optical lens group lens sum be five, first lens, second lens,
In being respectively provided with optical axis between each two adjacent lens in 3rd lens, the 4th lens and the 5th lens
Gas interval；
Wherein, the focal length of the imagery optical lens group is f, the radius of curvature of the second lens thing side surface
For R3, the radius of curvature on the second lens image side surface is R4, the most great achievement of the imagery optical lens group
Image height degree is ImgH, and it meets following condition：
(R3+R4)/(R3-R4)<0.50；And
0.25<ImgH/f<0.55。
21. imagery optical lens group according to claim 20, it is characterised in that this is first saturating
Mirror thing side surface is TL in the distance on optical axis to an imaging surface, and the focal length of the imagery optical lens group is
F, it meets following condition：
0.75<TL/f<1.10。
22. imagery optical lens group according to claim 20, it is characterised in that this is first saturating
The abbe number of mirror is V1, and the abbe number of second lens is V2, and the abbe number of the 3rd lens is
V3, the abbe number of the 4th lens is V4, and the abbe number of the 5th lens is V5, and it meets following
Condition：
0.45<(V2+V3+V5)/(V1+V4)<0.75。
23. imagery optical lens group according to claim 20, it is characterised in that this is first saturating
Mirror and second lens are T12 in the spacing distance on optical axis, and second lens and the 3rd lens are in optical axis
On spacing distance be T23, the 3rd lens and the 4th lens are T34 in the spacing distance on optical axis,
4th lens and the 5th lens are T45 in the spacing distance on optical axis, and it meets following condition：
1.0<T34/(T12+T23+T45)<4.0。
24. imagery optical lens group according to claim 20, it is characterised in that this is second saturating
The radius of curvature of mirror thing side surface is R3, and the radius of curvature on the second lens image side surface is R4, and it meets
Following condition：
(R3+R4)/(R3-R4)<0。
25. imagery optical lens group according to claim 20, it is characterised in that this is first saturating
Mirror and second lens are T12 in the spacing distance on optical axis, and second lens and the 3rd lens are in optical axis
On spacing distance be T23, it meets following condition：
0<T23/T12<1.75。
26. a kind of image-taking device, it is characterised in that include：
Imagery optical lens group as claimed in claim 20；And
One electronics photo-sensitive cell, wherein the electronics photo-sensitive cell are arranged at one one-tenth of the imagery optical lens group
In image planes.
27. a kind of electronic installation, it is characterised in that include：
Image-taking device as claimed in claim 26.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910266129.XA CN109856781B (en) | 2016-01-13 | 2016-01-13 | Optical lens group for imaging |
| CN201610020537.3A CN106970452B (en) | 2016-01-13 | 2016-01-13 | Imagery optical lens group, image-taking device and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020537.3A CN106970452B (en) | 2016-01-13 | 2016-01-13 | Imagery optical lens group, image-taking device and electronic device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910266129.XA Division CN109856781B (en) | 2016-01-13 | 2016-01-13 | Optical lens group for imaging |
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| Publication Number | Publication Date |
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| CN106970452A true CN106970452A (en) | 2017-07-21 |
| CN106970452B CN106970452B (en) | 2019-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910266129.XA Active CN109856781B (en) | 2016-01-13 | 2016-01-13 | Optical lens group for imaging |
| CN201610020537.3A Active CN106970452B (en) | 2016-01-13 | 2016-01-13 | Imagery optical lens group, image-taking device and electronic device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910266129.XA Active CN109856781B (en) | 2016-01-13 | 2016-01-13 | Optical lens group for imaging |
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| CN (2) | CN109856781B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106970452B (en) | 2019-05-07 |
| CN109856781A (en) | 2019-06-07 |
| CN109856781B (en) | 2020-12-29 |
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