CN106154513A - Optical lens group, image-taking device and electronic installation - Google Patents
Optical lens group, image-taking device and electronic installation Download PDFInfo
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- CN106154513A CN106154513A CN201510179218.2A CN201510179218A CN106154513A CN 106154513 A CN106154513 A CN 106154513A CN 201510179218 A CN201510179218 A CN 201510179218A CN 106154513 A CN106154513 A CN 106154513A
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Abstract
The invention discloses a kind of optical lens group, image-taking device and electronic installation.Optical lens group is sequentially comprised the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens by thing side to image side.First lens have positive refracting power, are convex surface at its thing side surface dipped beam axle.Second lens have refracting power.3rd lens have refracting power.4th lens have refracting power.5th lens have refracting power, are concave surface at its surface, image side dipped beam axle.6th lens have refracting power, are concave surface at its thing side surface dipped beam axle, and its thing side surface and surface, image side are all aspheric surface.7th lens have refracting power, are concave surface at its surface, image side dipped beam axle, and its off-axis place, surface, image side comprises at least one convex surface, and its thing side surface and surface, image side are all aspheric surface.When a specific condition is satisfied, large aperture, short overall length and big visual angle can be had concurrently.Invention additionally discloses image-taking device and the electronic installation with above-mentioned optical lens group.
Description
Technical field
The invention relates to a kind of optical lens group and image-taking device, and apply in particular to one
Miniaturized optical lens group on electronic installation and image-taking device.
Background technology
In recent years, along with the rise of the electronic product with camera function, the demand of optical system day by day improves.
The photo-sensitive cell of general optical system nothing more than be photosensitive coupling element (Charge Coupled Device,
Or Complimentary Metal-Oxide semiconductor element (Complementary Metal-Oxide CCD)
Semiconductor Sensor, CMOS Sensor) two kinds, and progressing greatly along with manufacture of semiconductor technology, make
The Pixel Dimensions obtaining photo-sensitive cell reduces, and optical system gradually develops toward high pixel neighborhoods, therefore to imaging product
The requirement of matter increases the most day by day.
The many employings of optical system that tradition is equipped on electronic product four or five chip lens arrangements, and in intelligence
Can mobile phone (Smart phones) and the high standard mobile device such as portable apparatus (Portable devices) prevailing
Under, optical system develops towards the direction of big imaging area and miniature size, the capture dress that it is arranged in pairs or groups
Put and also need corresponding miniaturization.But known optical system is owing to being difficult to the need having large aperture concurrently with short overall length
Ask, therefore, it is difficult to be equipped on frivolous electronic installation.
The six chip optical systems though making further progress at present, but at product towards large aperture and Miniaturization Design
While, often owing to the face shape configuration of lens is the best, it is the best to produce image curvature, height distortion and relative illumination
Problem.
Summary of the invention
The present invention provides a kind of optical lens group, image-taking device and electronic installation, its 5th lens and the 7th
The face shape configuration of lens, contributes to having large aperture and the characteristic of short overall length concurrently, is suitable for application in frivolous electronics
Device.Furthermore, due to the configuration of the 6th lens radius of curvature Yu optical lens group focal length, big light can taken into account
In the optical lens group of circle and miniaturization, effectively reduce image curvature and the degree of distortion, and there is optimization contrast
Degree effect, makes the configuration of lens face shape deflection obtain optimization.
There is provided a kind of optical lens group according to the present invention, by thing side to image side sequentially comprise the first lens, second
Lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.First lens tool
There is positive refracting power, be convex surface at its thing side surface dipped beam axle.Second lens have refracting power.3rd lens tool
There is refracting power.4th lens have refracting power.5th lens have refracting power, at its surface, image side dipped beam axle
For concave surface.6th lens have refracting power, are concave surface at its thing side surface dipped beam axle, its thing side surface and picture
Side surface is all aspheric surface.7th lens have refracting power, are concave surface at its surface, image side dipped beam axle, its picture
The off-axis place of side surface comprises at least one convex surface, and its thing side surface and surface, image side are all aspheric surface.Optical lens
The lens in group with refracting power are seven, all have a spacer between the wantonly two adjacent lens with refracting power
From, the radius of curvature of the 6th lens thing side surface is R11, and the focal length of optical lens group is f, under it meets
Row condition:
R11/f<0。
More provide a kind of image-taking device according to the present invention, comprise optical lens group as in the previous paragraph and electronics
Photo-sensitive cell, wherein sense electronics optical element is arranged at the imaging surface of optical lens group.
Separately provide a kind of electronic installation according to the present invention, comprise image-taking device as in the previous paragraph.
Reoffer a kind of optical lens group according to the present invention, by thing side to image side sequentially comprise the first lens, the
Two lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.First lens
There is positive refracting power, be convex surface at its thing side surface dipped beam axle.Second lens have refracting power.3rd lens
There is refracting power.4th lens have refracting power.5th lens have refracting power, its surface, image side dipped beam axle
Place is concave surface.6th lens have refracting power, are convex surface at its surface, image side dipped beam axle.7th lens have
Refracting power, is concave surface at its surface, image side dipped beam axle, and its off-axis place, surface, image side comprises at least one convex surface, its
Thing side surface and surface, image side are all aspheric surface.The lens in optical lens group with refracting power are seven, appoint
Between the two adjacent lens with refracting power, all there is a spacing distance.
There is provided again a kind of image-taking device according to the present invention, comprise optical lens group as in the previous paragraph and electronics
Photo-sensitive cell, wherein sense electronics optical element is arranged at the imaging surface of optical lens group.
More provide a kind of electronic installation according to the present invention, comprise image-taking device as in the previous paragraph.
When | R11/f | meets above-mentioned condition, can have in the optical lens group taking into account large aperture and miniaturization
Effect reduces image curvature, provides the relative illumination being suitable for, and contributes to the configuration of lens face shape deflection.
Accompanying drawing explanation
Fig. 1 illustrates the schematic diagram of a kind of image-taking device according to first embodiment of the invention；
Fig. 2 is sequentially the spherical aberration of first embodiment, astigmatism from left to right and distorts curve chart；
Fig. 3 illustrates the schematic diagram of a kind of image-taking device according to second embodiment of the invention；
Fig. 4 is sequentially the spherical aberration of the second embodiment, astigmatism from left to right and distorts curve chart；
Fig. 5 illustrates the schematic diagram of a kind of image-taking device according to third embodiment of the invention；
Fig. 6 is sequentially the spherical aberration of the 3rd embodiment, astigmatism from left to right and distorts curve chart；
Fig. 7 illustrates the schematic diagram of a kind of image-taking device according to fourth embodiment of the invention；
Fig. 8 is sequentially the spherical aberration of the 4th embodiment, astigmatism from left to right and distorts curve chart；
Fig. 9 illustrates the schematic diagram of a kind of image-taking device according to fifth embodiment of the invention；
Figure 10 is sequentially the spherical aberration of the 5th embodiment, astigmatism from left to right and distorts curve chart；
Figure 11 illustrates the schematic diagram of a kind of image-taking device according to sixth embodiment of the invention；
Figure 12 is sequentially the spherical aberration of sixth embodiment, astigmatism from left to right and distorts curve chart；
Figure 13 illustrates according to the schematic diagram of parameter Sag52 in Fig. 1 first embodiment；
Figure 14 illustrates according to the schematic diagram of parameter Yc32 in Fig. 3 the second embodiment；
Figure 15 illustrates according to the schematic diagram of parameter Yc72 in Fig. 3 the second embodiment；
Figure 16 illustrates the schematic diagram of a kind of electronic installation according to seventh embodiment of the invention；
Figure 17 illustrates the schematic diagram of a kind of electronic installation according to eighth embodiment of the invention；And
Figure 18 illustrates the schematic diagram of a kind of electronic installation according to ninth embodiment of the invention.
[symbol description]
Electronic installation: 10,20,30
Image-taking device: 11,21,31
First lens: 110,210,310,410,510,610
Thing side surface: 111,211,311,411,511,611
Surface, image side: 112,212,312,412,512,612
Second lens: 120,220,320,420,520,620
Thing side surface: 121,221,321,421,521,621
Surface, image side: 122,222,322,422,522,622
3rd lens: 130,230,330,430,530,630
Thing side surface: 131,231,331,431,531,631
Surface, image side: 132,232,332,432,532,632
4th lens: 140,240,340,440,540,640
Thing side surface: 141,241,341,441,541,641
Surface, image side: 142,242,342,442,542,642
5th lens: 150,250,350,450,550,650
Thing side surface: 151,251,351,451,551,651
Surface, image side: 152,252,352,452,552,652
6th lens: 160,260,360,460,560,660
Thing side surface: 161,261,361,461,561,661
Surface, image side: 162,262,362,462,562,662
7th lens: 170,270,370,470,570,670
Thing side surface: 171,271,371,471,571,671
Surface, image side: 172,272,372,472,572,672
Infrared ray filters filter element: 180,280,380,480,580,680
Imaging surface: 190,290,390,490,590,690
Sense electronics optical element: 195,295,395,495,595,695
F: the focal length of optical lens group
Fno: the f-number of optical lens group
HFOV: the half at maximum visual angle in optical lens group
The abbe number of the V2: the second lens
The abbe number of the V5: the five lens
Sd: aperture is the distance on optical axis to the 7th surface, lens image side
Td: the first lens thing side surface to the 7th surface, lens image side distance on optical axis
The entrance pupil diameter of EPD: optical lens group
CT5: the five lens thickness on optical axis
CT6: the six lens thickness on optical axis
CT7: the seven lens thickness on optical axis
Σ the CT: the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th saturating
Mirror and the 7th lens thickness summation on optical axis
TL: the first lens thing side surface is to imaging surface distance on optical axis
The maximum image height of ImgH: optical lens group
Sag52: the five surface, lens image side intersection point on optical axis has to the maximum on the 5th surface, lens image side
Effect radial location is in the horizontal displacement of optical axis
The critical point of the Yc32: the three surface, lens image side and the vertical dimension of optical axis
The critical point of the Yc72: the seven surface, lens image side and the vertical dimension of optical axis
The radius of curvature of the R11: the six lens thing side surface
The radius of curvature of the R13: the seven lens thing side surface
The radius of curvature of the R14: the seven surface, lens image side
F345: the three lens, the 4th lens and the synthesis focal length of the 5th lens
Detailed description of the invention
A kind of optical lens group, by thing side to image side sequentially comprise the first lens, the second lens, the 3rd lens,
4th lens, the 5th lens, the 6th lens and the 7th lens, wherein have refracting power in optical lens group
Lens be seven.
First lens of optical lens group described in leading portion, the second lens, the 3rd lens, the 4th lens, the 5th
In lens, the 6th lens and the 7th lens, between the wantonly two adjacent lens with refracting power, all there is an interval
Distance；It is to say, optical lens group has seven single unbonded lens.System due to cemented lens
Journey relatively non-adhering lens are complicated, and the adhesive surface at two lens especially need to have the curved surface of high accuracy, in order to reaches
High adaptation during two lens bondings, and during bonding, it is also possible to cause adaptation because of off normal not
Good, the overall optical imagery quality of impact.Therefore, in optical lens group of the present invention, wantonly two adjacent have flexion
All there is between the lens of power a spacing distance, problem produced by cemented lens can be effectively improved.
First lens have positive refracting power, are convex surface at its thing side surface dipped beam axle, so as to suitably adjusting first
The positive refracting power intensity of lens, contributes to shortening the total length of optical lens group.
Can be concave surface at 3rd surface, lens image side dipped beam axle, it is convex that its off-axis place, surface, image side comprises at least one
Face, so as to the aberration of modified off-axis visual field.
Can be convex surface at 4th lens thing side surface dipped beam axle, so as to revising spherical aberration, effectively promote image quality.
Being concave surface at 5th surface, lens image side dipped beam axle, whereby, optimized lens shape designs to help
In expanding visual angle and aperture.
Can be concave surface at 6th lens thing side surface dipped beam axle, can be convex surface at its surface, image side dipped beam axle, borrow
This, effectively revise astigmatism to promote image quality.
Being concave surface at 7th surface, lens image side dipped beam axle, its off-axis place, surface, image side comprises at least one convex surface,
Whereby, effectively compacting light angle on sense electronics optical element, makes optical lens group obtain sensitiveer
Sensing, and there is the effect improving surrounding image quality and relative illumination.
The radius of curvature of the 6th lens thing side surface is R11, and the focal length of optical lens group is f, under it meets
Row condition: R11/f < 0.Whereby, effectively can drop in the optical lens group taking into account large aperture and miniaturization
The relative illumination that low image curvature, offer are suitable for, and contribute to the configuration of lens face shape deflection.
The first lens thing side surface to the 7th surface, lens image side distance on optical axis is Td, the first lens,
Second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens are on optical axis
Thickness summation be Σ CT, it meets following condition: 1.0 < Td/ Σ CT < 1.45.Whereby, it can be ensured that
Compactness between lens, causes the difficulty in assembling to avoid the spacing distance between lens excessive.
The abbe number of the second lens is V2, and the abbe number of the 5th lens is V5, and it meets following condition:
30<V2+V5<85.Whereby, effectively can be carried by the negative refracting power configuration of the second lens and the 5th lens
High image quality.
The radius of curvature of the 7th surface, lens image side is R14, and the focal length of optical lens group is f, under it meets
Row condition: 0 < R14/f < 0.60.Whereby, the principal point picture away from optical lens group of optical lens group can be made
Side, is conducive to shortening back focal length to maintain miniaturization.
The focal length of optical lens group is f, and the synthesis focal length of the 3rd lens, the 4th lens and the 5th lens is
F345, it meets following condition: 0 < f/f345 < 1.0.Whereby, the 3rd lens, the 4th lens and the 5th
The face deformationization of lens can more relax, beneficially the becoming second nature and assembling of optical lens group, the most relatively low
Sensitivity and the configuration of applicable imaging.
5th surface, lens image side intersection point on optical axis is to the maximum effective radius on the 5th surface, lens image side
Position is Sag52 in the horizontal displacement of optical axis, and the 5th lens thickness on optical axis is CT5, and it meets
Following condition: | Sag52 |/CT5 < 0.55.Whereby, the shape of lens can be made excessively to bend, except favourable
Outside the making and molding of lens, the configuration being more conducive to make optical lens group is the tightst.It is preferred that can
Meet following condition: | Sag52 |/CT5 < 0.50.
6th lens thickness on optical axis is CT6, and the 7th lens thickness on optical axis is CT7, and it is full
Foot row condition: CT6/CT7 < 2.50.Whereby, the 6th lens centre can be avoided blocked up or the 7th lens mistake
Thin and cause lens arrangement fragile, to reduce the degree of difficulty on assembling.
Optical lens group can also comprise an aperture, and it is arranged between object and the 3rd lens, wherein aperture
Being Sd to the 7th surface, lens image side distance on optical axis, the first lens thing side surface is to the 7th lens picture
Side surface distance on optical axis is Td, and it meets following condition: 0.80 < Sd/Td < 1.0.Whereby, may be used
Make optical lens group obtain in telecentricity with Radix Rumicis characteristic well balanced, and maintain the overall overall length of miniaturization
Degree.
The first lens thing side surface to the 7th surface, lens image side distance on optical axis is Td, optical lens
The a diameter of EPD of entrance pupil of group, it meets following condition: Td/EPD < 3.20.Whereby, light can be increased
Learn the light-inletting quantity of lens group, and maintain its miniaturization simultaneously.
The critical point of the 3rd surface, lens image side and the vertical dimension of optical axis are Yc32, the 7th lens image side table
The critical point in face and the vertical dimension of optical axis are Yc72, and it meets following condition: 0.3 < Yc32/Yc72 <
0.75.Whereby, can the light linear shrinkage of assisted image periphery, the relative illumination of optical lens group can be effectively improved
With image definition.
First lens thing side surface is that TL is (when optical lens group comprises flat to imaging surface distance on optical axis
During panel element, TL comprises flat-panel component thickness), the maximum image height of optical lens group is ImgH, and it meets
Following condition: TL/ImgH < 1.80.Whereby, can effectively shorten the total length of optical lens group, maintain it
Miniaturization.
The focal length of optical lens group is f, and the maximum image height of optical lens group is ImgH, and it meets following bar
Part: f/ImgH < 1.40.Whereby, be conducive to expanding optical lens group visual angle to distort with reducing.
The half at the maximum visual angle of optical lens group is HFOV, and it meets following condition: 0.70 <
tan(HFOV).Whereby, optical lens group can have the characteristic at big visual angle, to obtain broad capture scope.
The radius of curvature of the 7th lens thing side surface is R13, and the radius of curvature on the 7th surface, lens image side is
R14, it meets following condition: 0.30 < (R13+R14)/(R13-R14).Whereby, Jiao after can effectively shortening
Away from, it is beneficial to maintain miniaturization.
In the optical lens group that the present invention provides, the material of lens can be plastic cement or glass.Material when lens
For plastic cement, can effectively reduce production cost.The another material working as lens is glass, then can increase optical frames
The degree of freedom of head group refracting power configuration.Additionally, thing side surface and surface, image side in optical lens group can be non-
Sphere (ASP), aspheric surface can easily be fabricated to the shape beyond sphere, it is thus achieved that more controlled variable,
In order to cut down aberration, and then the number that reduction lens use, therefore can effectively reduce optical lens of the present invention
The total length of group.
Furthermore, in the optical lens group that the present invention provides, if lens surface is convex surface and does not defines this convex surface position
When putting, then it represents that this lens surface is convex surface at dipped beam axle；If lens surface is concave surface and not define this recessed
During position, face, then it represents that this lens surface is concave surface at dipped beam axle.In the optical lens group that the present invention provides,
If lens have positive refracting power or negative refracting power, or the focal length of lens, all refer to the flexion at lens dipped beam axle
Power or focal length.
In the optical lens group that the present invention provides, critical point (Critical Point) is on lens surface, removes and light
Outside the intersection point of axle, it is perpendicular to, with one, the point of contact that the tangent plane of optical axis is tangent.
It addition, in optical lens group of the present invention, at least one diaphragm can be arranged on demand, to reduce veiling glare,
Contribute to promoting image quality.
The imaging surface (Image Surface) of the optical lens group of the present invention, according to the sense electronics optical element of its correspondence
Difference, can be a plane or the curved surface having arbitrary curvature, particularly relate to concave surface towards toward thing side to curved surface.
In the optical lens group of the present invention, aperture configuration can be preposition aperture or in put aperture, the most preposition light
Circle implies that aperture is arranged between object and the first lens, in put aperture and then represent that aperture is arranged at the first lens
And between imaging surface.If aperture is preposition aperture, outgoing pupil (Exit Pupil) and the imaging of optical lens group can be made
Face produces longer distance so that it is has telecentricity (Telecentric) effect, and can increase sense electronics optical element
CCD or CMOS receives the efficiency of image；Put aperture in if, contribute to the angle of visual field of expansion system,
Optical lens group is made to have the advantage of wide-angle lens.
The more visual demand of optical lens group of the present invention is applied in the optical system of mobile focusing, and has concurrently excellent
Good lens error correction and the characteristic of good image quality.Also many-side three-dimensional (3D) image capture, number can be applied to
Word camera, mobile product, digital flat panel, intelligent television, network monitoring device, somatic sensation television game machine, driving
In the electronic installations such as monitor, reversing developing unit, industrial robot and Wearable product.
The present invention separately provides a kind of image-taking device, comprises aforesaid optical lens group and sense electronics optical element,
Wherein sense electronics optical element is arranged at the imaging surface of optical lens group.By its 5th lens and the 7th lens
Face shape configuration, contributes to having large aperture and the characteristic of short overall length concurrently, is suitable to be applied to frivolous electronic installation.
Furthermore, due to the configuration of the 6th lens radius of curvature Yu optical lens group focal length, large aperture and little can taken into account
In the optical lens group of type, effectively reduce image curvature, the relative illumination being suitable for is provided, and contribute to lens
The configuration of face shape.It is preferred that image-taking device can further include lens barrel (Barrel Member), supports device
(Holder Member) or a combination thereof.
The present invention provides a kind of electronic installation, comprises aforesaid image-taking device.Whereby, can have large viewing.
It is preferred that electronic installation can further include control unit (Control Unit), display unit (Display),
Storage element (Storage Unit), random access memory (RAM) or a combination thereof.
According to above-mentioned embodiment, specific embodiment set forth below also coordinates accompanying drawing to be described in detail.
<first embodiment>
Refer to Fig. 1 and Fig. 2, wherein Fig. 1 illustrates a kind of image-taking device according to first embodiment of the invention
Schematic diagram, Fig. 2 be sequentially from left to right the spherical aberration of first embodiment, astigmatism and distort curve chart.By scheming
1 understands, and the image-taking device of first embodiment comprises optical lens group (not another label) and sense electronics optical element
195.Optical lens group is sequentially comprised aperture the 100, first lens the 110, second lens by thing side to image side
120, the 3rd lens the 130, the 4th lens the 140, the 5th lens the 150, the 6th lens the 160, the 7th lens
170, infrared ray filters filter element (IR-cut filter) 180 and imaging surface 190, and sense electronics optical element
195 imaging surfaces 190 being arranged at optical lens group, the lens wherein in optical lens group with refracting power are
Seven (110-170), all has a spacing distance between the wantonly two adjacent lens with refracting power.
First lens 110 have positive refracting power, and are plastic cement material, at its thing side surface 111 dipped beam axle are
Convex surface, is concave surface at its surface, image side 112 dipped beam axle, and is all aspheric surface.
Second lens 120 have negative refracting power, and are plastic cement material, at its thing side surface 121 dipped beam axle are
Convex surface, is concave surface at its surface, image side 122 dipped beam axle, and is all aspheric surface.
3rd lens 130 have positive refracting power, and are plastic cement material, at its thing side surface 131 dipped beam axle are
Convex surface, is concave surface at its surface, image side 132 dipped beam axle, and is all aspheric surface.
4th lens 140 have positive refracting power, and are plastic cement material, at its thing side surface 141 dipped beam axle are
Convex surface, is convex surface at its surface, image side 142 dipped beam axle, and is all aspheric surface.
5th lens 150 have negative refracting power, and are plastic cement material, at its thing side surface 151 dipped beam axle are
Concave surface, is concave surface at its surface, image side 152 dipped beam axle, and is all aspheric surface.
6th lens 160 have positive refracting power, and are plastic cement material, at its thing side surface 161 dipped beam axle are
Concave surface, is convex surface at its surface, image side 162 dipped beam axle, and is all aspheric surface.
7th lens 170 have negative refracting power, and are plastic cement material, at its thing side surface 171 dipped beam axle are
Convex surface, is concave surface at its surface, image side 172 dipped beam axle, and is all aspheric surface.It addition, the 7th lens image side
Off-axis place, surface 172 comprises at least one convex surface.
It is glass material that infrared ray filters filter element 180, and it is arranged at the 7th lens 170 and imaging surface
Between 190 and do not affect the focal length of optical lens group.
The aspheric fitting equation of above-mentioned each lens is expressed as follows:
Wherein:
X: in aspheric surface, distance optical axis is the point of Y, its be tangential on the phase of intersection point tangent plane on aspheric surface optical axis
Adjust the distance；
Y: the point in aspheric curve and the vertical dimension of optical axis；
R: radius of curvature；
K: conical surface coefficient；And
Ai: the i-th rank asphericity coefficient.
In the optical lens group of first embodiment, the focal length of optical lens group is f, the aperture of optical lens group
Value (f-number) is Fno, and in optical lens group, the half at maximum visual angle is HFOV, and its numerical value is as follows: f=
5.04mm；Fno=2.30；And HFOV=38.0 degree.
In the optical lens group of first embodiment, the half at the maximum visual angle of optical lens group is HFOV, its
Meet following condition: tan (HFOV)=0.78.
In the optical lens group of first embodiment, the abbe number of the second lens 120 is V2, the 5th lens
The abbe number of 150 is V5, and it meets following condition: V2+V5=79.3.
In the optical lens group of first embodiment, aperture 100 to the 7th surface 172, lens image side is on optical axis
Distance be Sd, the first lens thing side surface 111 to the 7th surface 172, lens image side on optical axis away from
From for Td, it meets following condition: Sd/Td=0.95.
In the optical lens group of first embodiment, the first lens thing side surface 111 to the 7th surface, lens image side
172 distances on optical axis are Td, and a diameter of EPD of entrance pupil of optical lens group, it meets following bar
Part: Td/EPD=2.36.
In the optical lens group of first embodiment, the first lens thing side surface 111 to the 7th surface, lens image side
172 distances on optical axis are Td, first lens the 110, second lens 120, the 3rd lens 130,
Four lens the 140, the 5th lens the 150, the 6th lens 160 and the 7th lens 170 thickness on optical axis
Summation is Σ CT, and it meets following condition: Td/ Σ CT=1.37.
In the optical lens group of first embodiment, the 6th lens 160 thickness on optical axis is CT6, the 7th
The lens 170 thickness on optical axis is CT7, and it meets following condition: CT6/CT7=0.42.
In the optical lens group of first embodiment, the first lens thing side surface 111 to imaging surface 190 is in optical axis
On distance be TL, the maximum image height of optical lens group is ImgH (i.e. sense electronics optical element 195 effective feeling
Survey the half of region diagonal line length), it meets following condition: TL/ImgH=1.61.
Coordinate with reference to Figure 13, be to illustrate according to the schematic diagram of parameter Sag52 in Fig. 1 first embodiment.By
Figure 13 understands, and the 5th surface 152, lens image side intersection point on optical axis is to the 5th surface, lens image side 152
Maximum effective radius position in the horizontal displacement of optical axis be Sag52 (horizontal displacement towards thing side to,
Sag52 is defined as negative value；Horizontal displacement towards direction, image side, Sag52 be then defined as on the occasion of), the 5th lens
150 thickness on optical axis are CT5, and it meets following condition: | Sag52 |/CT5=0.91.
In the optical lens group of first embodiment, the radius of curvature of the 6th lens thing side surface 161 is R11,
The focal length of optical lens group is f, and it meets following condition: R11/f=-19.16.
In the optical lens group of first embodiment, the radius of curvature on the 7th surface, lens image side 172 is R14,
The focal length of optical lens group is f, and it meets following condition: R14/f=0.32.
In the optical lens group of first embodiment, the radius of curvature of the 7th lens thing side surface 171 is R13,
The radius of curvature of the 7th surface, lens image side 172 is R14, and it meets following condition:
(R13+R14)/(R13-R14)=4.89.
In the optical lens group of first embodiment, the focal length of optical lens group is f, the 3rd lens 130,
The synthesis focal length of four lens 140 and the 5th lens 150 is f345, and it meets following condition: f/f345=0.17.
In the optical lens group of first embodiment, the focal length of optical lens group is f, the maximum of optical lens group
Image height is ImgH, and it meets following condition: f/ImgH=1.26.
Coordinate again with reference to lower list one and table two.
Table one is the structured data that Fig. 1 first embodiment is detailed, wherein the list of radius of curvature, thickness and focal length
Position is mm, and surface 0-18 sequentially represents by the surface of thing side to image side.Table two is in first embodiment
Aspherical surface data, wherein, the conical surface coefficient in k table aspheric curve equation, A4-A16 then represents
4-16 rank, each surface asphericity coefficient.Additionally, following embodiment form is showing of corresponding each embodiment
Be intended to and aberration curve figure, in form the definition of data all with table one and the definition phase of table two of first embodiment
With, it is not added with at this repeating.
<the second embodiment>
Refer to Fig. 3 and Fig. 4, wherein Fig. 3 illustrates a kind of image-taking device according to second embodiment of the invention
Schematic diagram, Fig. 4 be sequentially from left to right the spherical aberration of the second embodiment, astigmatism and distort curve chart.By scheming
3 understand, and the image-taking device of the second embodiment comprises optical lens group (not another label) and sense electronics optical element
295.Optical lens group is sequentially comprised aperture the 200, first lens the 210, second lens by thing side to image side
220, the 3rd saturating 240, the 5th lens the 250, the 6th lens the 260, the 7th lens 270 of lens the 230, the 4th,
Infrared ray filters filter element 280 and imaging surface 290, and sense electronics optical element 295 is arranged at optical frames
The imaging surface 290 of head group, the lens wherein in optical lens group with refracting power are seven (210-270), appoint
Between the two adjacent lens with refracting power, all there is a spacing distance.
First lens 210 have positive refracting power, and are plastic cement material, at its thing side surface 211 dipped beam axle are
Convex surface, is concave surface at its surface, image side 212 dipped beam axle, and is all aspheric surface.
Second lens 220 have positive refracting power, and are plastic cement material, at its thing side surface 221 dipped beam axle are
Convex surface, is concave surface at its surface, image side 222 dipped beam axle, and is all aspheric surface.
3rd lens 230 have positive refracting power, and are plastic cement material, at its thing side surface 231 dipped beam axle are
Convex surface, is concave surface at its surface, image side 232 dipped beam axle, and is all aspheric surface.It addition, the 3rd lens image side
Off-axis place, surface 232 comprises at least one convex surface.
4th lens 240 have positive refracting power, and are plastic cement material, at its thing side surface 241 dipped beam axle are
Convex surface, is convex surface at its surface, image side 242 dipped beam axle, and is all aspheric surface.
5th lens 250 have negative refracting power, and are plastic cement material, at its thing side surface 251 dipped beam axle are
Concave surface, is concave surface at its surface, image side 252 dipped beam axle, and is all aspheric surface.
6th lens 260 have positive refracting power, and are plastic cement material, at its thing side surface 261 dipped beam axle are
Convex surface, is convex surface at its surface, image side 262 dipped beam axle, and is all aspheric surface.
7th lens 270 have negative refracting power, and are plastic cement material, at its thing side surface 271 dipped beam axle are
Concave surface, is concave surface at its surface, image side 272 dipped beam axle, and is all aspheric surface.It addition, the 7th lens image side
Off-axis place, surface 272 comprises at least one convex surface.
It is glass material that infrared ray filters filter element 280, and it is arranged at the 7th lens 270 and imaging surface
Between 290 and do not affect the focal length of optical lens group.
Coordinate and illustrate according to parameter Yc32 in Fig. 3 the second embodiment with reference to Figure 14 and Figure 15, Figure 14
Schematic diagram, Figure 15 is to illustrate according to the schematic diagram of parameter Yc72 in Fig. 3 the second embodiment.By Figure 14 and
Figure 15 understands, and the critical point on the 3rd surface, lens image side 232 and the vertical dimension of optical axis are Yc32, and the 7th
The critical point on surface, lens image side 272 and the vertical dimension of optical axis are Yc72, and it meets following condition:
Yc32/Yc72=0.54.
Coordinate with reference to lower list three and table four.
In second embodiment, aspheric fitting equation represents the form such as first embodiment.Under additionally,
The definition of table parameter is all identical with first embodiment, and not in this to go forth.
Cooperation table three and table four can extrapolate following data:
<the 3rd embodiment>
Refer to Fig. 5 and Fig. 6, wherein Fig. 5 illustrates a kind of image-taking device according to third embodiment of the invention
Schematic diagram, Fig. 6 be sequentially from left to right the spherical aberration of the 3rd embodiment, astigmatism and distort curve chart.By scheming
5 understand, and the image-taking device of the 3rd embodiment comprises optical lens group (not another label) and sense electronics optical element
395.Optical lens group is sequentially comprised aperture the 300, first lens the 310, second lens by thing side to image side
320, the 3rd lens the 330, the 4th lens the 340, the 5th lens the 350, the 6th lens the 360, the 7th lens
370, infrared ray filters filter element 380 and imaging surface 390, and sense electronics optical element 395 is arranged at
The imaging surface 390 of optical lens group, the lens wherein in optical lens group with refracting power are seven
(310-370), between the wantonly two adjacent lens with refracting power, all there is a spacing distance.
First lens 310 have positive refracting power, and are plastic cement material, at its thing side surface 311 dipped beam axle are
Convex surface, is concave surface at its surface, image side 312 dipped beam axle, and is all aspheric surface.
Second lens 320 have positive refracting power, and are plastic cement material, at its thing side surface 321 dipped beam axle are
Convex surface, is concave surface at its surface, image side 322 dipped beam axle, and is all aspheric surface.
3rd lens 330 have positive refracting power, and are plastic cement material, at its thing side surface 331 dipped beam axle are
Convex surface, is concave surface at its surface, image side 332 dipped beam axle, and is all aspheric surface.It addition, the 3rd lens image side
Off-axis place, surface 332 comprises at least one convex surface.
4th lens 340 have positive refracting power, and are plastic cement material, at its thing side surface 341 dipped beam axle are
Convex surface, is convex surface at its surface, image side 342 dipped beam axle, and is all aspheric surface.
5th lens 350 have negative refracting power, and are plastic cement material, at its thing side surface 351 dipped beam axle are
Concave surface, is concave surface at its surface, image side 352 dipped beam axle, and is all aspheric surface.
6th lens 360 have positive refracting power, and are plastic cement material, at its thing side surface 361 dipped beam axle are
Concave surface, is convex surface at its surface, image side 362 dipped beam axle, and is all aspheric surface.
7th lens 370 have negative refracting power, and are plastic cement material, at its thing side surface 371 dipped beam axle are
Concave surface, is concave surface at its surface, image side 372 dipped beam axle, and is all aspheric surface.It addition, the 7th lens image side
Off-axis place, surface 372 comprises at least one convex surface.
It is glass material that infrared ray filters filter element 380, and it is arranged at the 7th lens 370 and imaging surface
Between 390 and do not affect the focal length of optical lens group.
Coordinate with reference to lower list five and table six.
In 3rd embodiment, aspheric fitting equation represents the form such as first embodiment.Under additionally,
The definition of table parameter is all identical with first embodiment and the second embodiment, and not in this to go forth.
Cooperation table five and table six can extrapolate following data:
<the 4th embodiment>
Refer to Fig. 7 and Fig. 8, wherein Fig. 7 illustrates a kind of image-taking device according to fourth embodiment of the invention
Schematic diagram, Fig. 8 be sequentially from left to right the spherical aberration of the 4th embodiment, astigmatism and distort curve chart.By scheming
7 understand, and the image-taking device of the 4th embodiment comprises optical lens group (not another label) and sense electronics optical element
495.Optical lens group is sequentially comprised aperture the 400, first lens the 410, second lens by thing side to image side
420, the 3rd saturating 440, the 5th lens the 450, the 6th lens the 460, the 7th lens 470 of lens the 430, the 4th,
Infrared ray filters filter element 480 and imaging surface 490, and sense electronics optical element 495 is arranged at optical frames
The imaging surface 490 of head group, the lens wherein in optical lens group with refracting power are seven (410-470), appoint
Between the two adjacent lens with refracting power, all there is a spacing distance.
First lens 410 have positive refracting power, and are plastic cement material, at its thing side surface 411 dipped beam axle are
Convex surface, is concave surface at its surface, image side 412 dipped beam axle, and is all aspheric surface.
Second lens 420 have negative refracting power, and are plastic cement material, at its thing side surface 421 dipped beam axle are
Convex surface, is concave surface at its surface, image side 422 dipped beam axle, and is all aspheric surface.
3rd lens 430 have positive refracting power, and are plastic cement material, at its thing side surface 431 dipped beam axle are
Convex surface, is concave surface at its surface, image side 432 dipped beam axle, and is all aspheric surface.It addition, the 3rd lens image side
Off-axis place, surface 432 comprises at least one convex surface.
4th lens 440 have positive refracting power, and are plastic cement material, at its thing side surface 441 dipped beam axle are
Convex surface, is convex surface at its surface, image side 442 dipped beam axle, and is all aspheric surface.
5th lens 450 have negative refracting power, and are plastic cement material, are recessed at its thing side table 451 dipped beam axle
Face, is concave surface at its surface, image side 452 dipped beam axle, and is all aspheric surface.
6th lens 460 have positive refracting power, and are plastic cement material, at its thing side surface 461 dipped beam axle are
Concave surface, is convex surface at its surface, image side 462 dipped beam axle, and is all aspheric surface.
7th lens 470 have negative refracting power, and are plastic cement material, at its thing side surface 471 dipped beam axle are
Concave surface, is concave surface at its surface, image side 472 dipped beam axle, and is all aspheric surface.It addition, the 7th lens image side
Off-axis place, surface 472 comprises at least one convex surface.
It is glass material that infrared ray filters filter element 480, and it is arranged at the 7th lens 470 and imaging surface
Between 490 and do not affect the focal length of optical lens group.
Coordinate with reference to lower list seven and table eight.
In 4th embodiment, aspheric fitting equation represents the form such as first embodiment.Under additionally,
The definition of table parameter is all identical with first embodiment and the second embodiment, and not in this to go forth.
Cooperation table seven and table eight can extrapolate following data:
<the 5th embodiment>
Refer to Fig. 9 and Figure 10, wherein Fig. 9 illustrates and fills according to a kind of capture of fifth embodiment of the invention
The schematic diagram put, Figure 10 is sequentially the spherical aberration of the 5th embodiment, astigmatism from left to right and distorts curve chart.
As shown in Figure 9, the image-taking device of the 5th embodiment comprises optical lens group (not another label) and sense electronics
Optical element 595.Optical lens group by thing side to image side sequentially comprise aperture the 500, first lens 510,
Two lens 520, the 3rd lens 530, the 4th lens 540, the 5th lens 550, the 6th lens 560,
Seven lens 570, infrared ray filter filter element 580 and imaging surface 590, and sense electronics optical element 595
Being arranged at the imaging surface 590 of optical lens group, the lens wherein in optical lens group with refracting power are seven
(510-570), between the wantonly two adjacent lens with refracting power, all there is a spacing distance.
First lens 510 have positive refracting power, and are plastic cement material, at its thing side surface 511 dipped beam axle are
Convex surface, is concave surface at its surface, image side 512 dipped beam axle, and is all aspheric surface.
Second lens 520 have negative refracting power, and are plastic cement material, at its thing side surface 521 dipped beam axle are
Convex surface, is concave surface at its surface, image side 522 dipped beam axle, and is all aspheric surface.
3rd lens 530 have negative refracting power, and are plastic cement material, at its thing side surface 531 dipped beam axle are
Convex surface, is concave surface at its surface, image side 532 dipped beam axle, and is all aspheric surface.It addition, the 3rd lens image side
Off-axis place, surface 532 comprises at least one convex surface.
4th lens 540 have positive refracting power, and are plastic cement material, at its thing side surface 541 dipped beam axle are
Convex surface, is convex surface at its surface, image side 542 dipped beam axle, and is all aspheric surface.
5th lens 550 have negative refracting power, and are plastic cement material, at its thing side surface 551 dipped beam axle are
Concave surface, is concave surface at its surface, image side 552 dipped beam axle, and is all aspheric surface.
6th lens 560 have positive refracting power, and are plastic cement material, at its thing side surface 561 dipped beam axle are
Concave surface, is convex surface at its surface, image side 562 dipped beam axle, and is all aspheric surface.
7th lens 570 have negative refracting power, and are plastic cement material, at its thing side surface 571 dipped beam axle are
Concave surface, is concave surface at its surface, image side 572 dipped beam axle, and is all aspheric surface.It addition, the 7th lens image side
Off-axis place, surface 572 comprises at least one convex surface.
It is glass material that infrared ray filters filter element 580, and it is arranged at the 7th lens 570 and imaging surface
Between 590 and do not affect the focal length of optical lens group.
Coordinate with reference to lower list nine and table ten.
In 5th embodiment, aspheric fitting equation represents the form such as first embodiment.Under additionally,
The definition of table parameter is all identical with first embodiment and the second embodiment, and not in this to go forth.
Cooperation table nine and table ten can extrapolate following data:
<sixth embodiment>
Refer to Figure 11 and Figure 12, wherein Figure 11 illustrates a kind of capture according to sixth embodiment of the invention
The schematic diagram of device, Figure 12 is sequentially the spherical aberration of sixth embodiment, astigmatism from left to right and distorts curve chart.
As shown in Figure 11, the image-taking device of sixth embodiment comprises optical lens group (not another label) and sense electronics
Optical element 695.Optical lens group by thing side to image side sequentially comprise the first lens 610, aperture 600,
Two lens 620, the 3rd lens 630, the 4th lens 640, the 5th lens 650, the 6th lens 660,
Seven lens 670, infrared ray filter filter element 680 and imaging surface 690, and sense electronics optical element 695
Being arranged at the imaging surface 690 of optical lens group, the lens wherein in optical lens group with refracting power are seven
(610-670), between the wantonly two adjacent lens with refracting power, all there is a spacing distance.
First lens 610 have positive refracting power, and are plastic cement material, at its thing side surface 611 dipped beam axle are
Convex surface, is concave surface at its surface, image side 612 dipped beam axle, and is all aspheric surface.
Second lens 620 have negative refracting power, and are plastic cement material, at its thing side surface 621 dipped beam axle are
Convex surface, is concave surface at its surface, image side 622 dipped beam axle, and is all aspheric surface.
3rd lens 630 have positive refracting power, and are plastic cement material, at its thing side surface 631 dipped beam axle are
Convex surface, is concave surface at its surface, image side 632 dipped beam axle, and is all aspheric surface.It addition, the 3rd lens image side
Off-axis place, surface 632 comprises at least one convex surface.
4th lens 640 have positive refracting power, and are plastic cement material, at its thing side surface 641 dipped beam axle are
Concave surface, is convex surface at its surface, image side 642 dipped beam axle, and is all aspheric surface.
5th lens 650 have negative refracting power, and are plastic cement material, at its thing side surface 651 dipped beam axle are
Convex surface, is concave surface at its surface, image side 652 dipped beam axle, and is all aspheric surface.
6th lens 660 have positive refracting power, and are plastic cement material, at its thing side surface 661 dipped beam axle are
Concave surface, is convex surface at its surface, image side 662 dipped beam axle, and is all aspheric surface.
7th lens 670 have negative refracting power, and are plastic cement material, at its thing side surface 671 dipped beam axle are
Concave surface, is concave surface at its surface, image side 672 dipped beam axle, and is all aspheric surface.It addition, the 7th lens image side
Off-axis place, surface 672 comprises at least one convex surface.
It is glass material that infrared ray filters filter element 680, and it is arranged at the 7th lens 670 and imaging surface
Between 690 and do not affect the focal length of optical lens group.
Coordinate with reference to lower list 11 and table 12.
In sixth embodiment, aspheric fitting equation represents the form such as first embodiment.Under additionally,
The definition of table parameter is all identical with first embodiment and the second embodiment, and not in this to go forth.
Cooperation table 11 and table 12 can extrapolate following data:
<the 7th embodiment>
Refer to Figure 16, be the schematic diagram illustrating a kind of electronic installation 10 according to seventh embodiment of the invention.
The electronic installation 10 of the 7th embodiment is a smart mobile phone, and electronic installation 10 comprises image-taking device 11, takes
As device 11 comprises the optical lens group (figure does not discloses) according to the present invention and sense electronics optical element (figure
Do not disclose), wherein sense electronics optical element is arranged at the imaging surface of optical lens group.
<the 8th embodiment>
Refer to Figure 17, be the schematic diagram illustrating a kind of electronic installation 20 according to eighth embodiment of the invention.
The electronic installation 20 of the 8th embodiment is a tablet PC, and electronic installation 20 comprises image-taking device 21,
Image-taking device 21 comprises the optical lens group (figure does not discloses) according to the present invention and sense electronics optical element (figure
Do not disclose), wherein sense electronics optical element is arranged at the imaging surface of optical lens group.
<the 9th embodiment>
Refer to Figure 18, be the schematic diagram illustrating a kind of electronic installation 30 according to ninth embodiment of the invention.
The electronic installation 30 of the 9th embodiment is a head mounted display (Head-mounted display, HMD),
Electronic installation 30 comprises image-taking device 31, and image-taking device 31 comprises the optical lens group (figure according to the present invention
Do not disclose) and sense electronics optical element (figure does not discloses), wherein sense electronics optical element is arranged at optical lens
The imaging surface of group.
Although the present invention is disclosed above with embodiment, so it is not limited to the present invention, any familiar
This those skilled in the art, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations, therefore
Protection scope of the present invention is when being defined in the range of standard depending on appending claims.
Claims (27)
1. an optical lens group, it is characterised in that sequentially comprised to image side by thing side:
One first lens, have positive refracting power, are convex surface at its thing side surface dipped beam axle；
One second lens, have refracting power；
One the 3rd lens, have refracting power；
One the 4th lens, have refracting power；
One the 5th lens, have refracting power, are concave surface at its surface, image side dipped beam axle；And
One the 6th lens, have refracting power, are concave surface at its thing side surface dipped beam axle, its thing side surface and picture
Side surface is all aspheric surface；And
One the 7th lens, have refracting power, are concave surface at its surface, image side dipped beam axle, and its surface, image side is off-axis
Place comprises at least one convex surface, and its thing side surface and surface, image side are all aspheric surface；
Wherein, the lens in this optical lens group with refracting power are seven, and wantonly two adjacent have refracting power
All having a spacing distance between lens, the radius of curvature of the 6th lens thing side surface is R11, this optical frames
The focal length of head group is f, and it meets following condition:
R11/f<0。
Optical lens group the most according to claim 1, it is characterised in that the 6th lens image side table
It is convex surface at the dipped beam axle of face.
Optical lens group the most according to claim 1, it is characterised in that this first lens thing side table
Face to the 7th surface, lens image side distance on optical axis is Td, these first lens, these second lens,
3rd lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens are on optical axis
Thickness summation be Σ CT, it meets following condition:
1.0<Td/ΣCT<1.45。
Optical lens group the most according to claim 1, it is characterised in that the 4th lens thing side table
It is convex surface at the dipped beam axle of face.
Optical lens group the most according to claim 1, it is characterised in that the 3rd lens image side table
Being concave surface at the dipped beam axle of face, its off-axis place, surface, image side comprises at least one convex surface, its thing side surface and image side table
Face is all aspheric surface.
Optical lens group the most according to claim 1, it is characterised in that the dispersion of these the second lens
Coefficient is V2, and the abbe number of the 5th lens is V5, and it meets following condition:
30<V2+V5<85。
Optical lens group the most according to claim 1, it is characterised in that the 7th lens image side table
The radius of curvature in face is R14, and the focal length of this optical lens group is f, and it meets following condition:
0<R14/f<0.60。
Optical lens group the most according to claim 1, it is characterised in that Jiao of this optical lens group
It is f345 away from the synthesis focal length for f, the 3rd lens, the 4th lens and the 5th lens, under it meets
Row condition:
0<f/f345<1.0。
Optical lens group the most according to claim 1, it is characterised in that the 5th lens image side table
Face intersection point on optical axis to the maximum effective radius position on the 5th surface, lens image side in the level of optical axis
Displacement is Sag52, and the 5th lens thickness on optical axis is CT5, and it meets following condition:
|Sag52|/CT5<0.55。
Optical lens group the most according to claim 1, it is characterised in that the 6th lens are in optical axis
On thickness be CT6, the 7th lens thickness on optical axis is CT7, and it meets following condition:
CT6/CT7<2.50。
11. optical lens groups according to claim 1, it is characterised in that also comprise:
One aperture, is arranged between an object and the 3rd lens, and wherein this aperture is to the 7th lens picture
Side surface distance on optical axis is Sd, this first lens thing side surface to the 7th surface, lens image side in
Distance on optical axis is Td, a diameter of EPD of entrance pupil of this optical lens group, and it meets following condition:
0.80<Sd/Td<1.0；And
Td/EPD<3.20。
12. 1 kinds of image-taking devices, it is characterised in that comprise:
Optical lens group as claimed in claim 1；And
One sense electronics optical element, it is arranged at an imaging surface of this optical lens group.
13. 1 kinds of electronic installations, it is characterised in that comprise:
Image-taking device as claimed in claim 12.
14. 1 kinds of optical lens groups, it is characterised in that sequentially comprised to image side by thing side:
One first lens, have positive refracting power, are convex surface at its thing side surface dipped beam axle；
One second lens, have refracting power；
One the 3rd lens, have refracting power；
One the 4th lens, have refracting power；
One the 5th lens, have refracting power, are concave surface at its surface, image side dipped beam axle；And
One the 6th lens, have refracting power, are convex surface at its surface, image side dipped beam axle；And
One the 7th lens, have refracting power, are concave surface at its surface, image side dipped beam axle, and its surface, image side is off-axis
Place comprises at least one convex surface, and its thing side surface and surface, image side are all aspheric surface；
Wherein, the lens in this optical lens group with refracting power are seven, and wantonly two adjacent have refracting power
All there is between lens a spacing distance.
15. optical lens groups according to claim 14, it is characterised in that the 5th lens image side
Surface intersection point on optical axis to the maximum effective radius position on the 5th surface, lens image side in the water of optical axis
Flat displacement is Sag52, and the 5th lens thickness on optical axis is CT5, and it meets following condition:
|Sag52|/CT5<0.50。
16. optical lens groups according to claim 14, it is characterised in that the 6th lens are in light
Thickness on axle is CT6, and the 7th lens thickness on optical axis is CT7, and it meets following condition:
CT6/CT7<2.50。
17. optical lens groups according to claim 14, it is characterised in that the color of these the second lens
Scattered coefficient is V2, and the abbe number of the 5th lens is V5, and it meets following condition:
30<V2+V5<85。
18. optical lens group according to claim 14, it is characterised in that the 7th lens image side
The radius of curvature on surface is R14, and the focal length of this optical lens group is f, and it meets following condition:
R14/f<0.60。
19. optical lens groups according to claim 14, it is characterised in that this optical lens group
Focal length is f, and the 3rd lens, the 4th lens are f345 with the synthesis focal length of the 5th lens, and it meets
Following condition:
0.0<f/f345<1.0。
20. optical lens groups according to claim 14, it is characterised in that also comprise:
One aperture, is arranged between an object and the 3rd lens, and wherein this aperture is to the 7th lens picture
Side surface distance on optical axis is Sd, this first lens thing side surface to the 7th surface, lens image side in
Distance on optical axis is Td, a diameter of EPD of entrance pupil of this optical lens group, and it meets following condition:
0.80<Sd/Td<1.0；And
Td/EPD<3.20。
21. optical lens group according to claim 14, it is characterised in that the 3rd lens image side
One critical point on surface and the vertical dimension of optical axis are Yc32, a critical point on the 7th surface, lens image side
Being Yc72 with the vertical dimension of optical axis, it meets following condition:
0.3<Yc32/Yc72<0.75。
22. optical lens groups according to claim 14, it is characterised in that this first lens thing side
Surface is TL to imaging surface distance on optical axis, and the maximum image height of this optical lens group is ImgH, its
Meet following condition:
TL/ImgH<1.80。
23. optical lens groups according to claim 14, it is characterised in that this optical lens group
Focal length is f, and the maximum image height of this optical lens group is ImgH, and it meets following condition:
f/ImgH<1.40。
24. optical lens groups according to claim 14, it is characterised in that this optical lens group
The half at maximum visual angle is HFOV, and it meets following condition:
0.70<tan(HFOV)。
25. optical lens groups according to claim 14, it is characterised in that the 7th lens thing side
The radius of curvature on surface is R13, and the radius of curvature on the 7th surface, lens image side is R14, and it meets following
Condition:
0.30<(R13+R14)/(R13-R14)。
26. 1 kinds of image-taking devices, it is characterised in that comprise:
Optical lens group as claimed in claim 14；And
One sense electronics optical element, it is arranged at an imaging surface of this optical lens group.
27. 1 kinds of electronic installations, it is characterised in that comprise:
Image-taking device as claimed in claim 26.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510179218.2A CN106154513B (en) | 2015-04-16 | 2015-04-16 | Optical lens group, image-taking device and electronic device |
| CN201910063932.3A CN109581632B (en) | 2015-04-16 | 2015-04-16 | Optical lens assembly and image capturing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510179218.2A CN106154513B (en) | 2015-04-16 | 2015-04-16 | Optical lens group, image-taking device and electronic device |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910063932.3A Division CN109581632B (en) | 2015-04-16 | 2015-04-16 | Optical lens assembly and image capturing device |
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|---|---|
| CN106154513A true CN106154513A (en) | 2016-11-23 |
| CN106154513B CN106154513B (en) | 2019-03-01 |
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| CN201510179218.2A Active CN106154513B (en) | 2015-04-16 | 2015-04-16 | Optical lens group, image-taking device and electronic device |
| CN201910063932.3A Active CN109581632B (en) | 2015-04-16 | 2015-04-16 | Optical lens assembly and image capturing device |
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| Application Number | Title | Priority Date | Filing Date |
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