CN108802970A - imaging system and electronic device - Google Patents
imaging system and electronic device Download PDFInfo
- Publication number
- CN108802970A CN108802970A CN201810551272.9A CN201810551272A CN108802970A CN 108802970 A CN108802970 A CN 108802970A CN 201810551272 A CN201810551272 A CN 201810551272A CN 108802970 A CN108802970 A CN 108802970A
- Authority
- CN
- China
- Prior art keywords
- lens
- imaging system
- image side
- focal length
- refracting power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The invention discloses a kind of imaging system and electronic devices.Imaging system includes first lens with positive refracting power, the second lens with refracting power, the third lens with refracting power, the 4th lens with refracting power, the 5th lens with positive refracting power and with the 6th lens of negative refracting power successively along object side to the image side of optical axis.The object side of first lens is convex surface, the object side of 5th lens is concave surface at circumference, the image side surface of 5th lens is convex surface, the image side surface of 6th lens is concave surface at optical axis, the image side surface of 6th lens is convex surface at circumference, and at least one of the object side of the 6th lens and image side surface surface include at least one point of inflexion.The imaging system and electronic device of embodiment of the present invention are configured by the above-mentioned rational lens to six pieces of lens, and imaging system not only has good resolution to meet high-resolution demand, can also reduce the height of imaging system to meet the needs of miniaturization.
Description
Technical field
The present invention relates to optical image technology, more particularly to a kind of imaging system and electronic device.
Background technology
With the development of semiconductor technology, the pixel of photosensitive element is higher and higher, thus pair with photosensitive element cooperation at
As the requirement of the resolution ratio of system is also higher and higher.However, for aberration correction, resolution ratio is promoted, it usually needs increase imaging
The number of the eyeglass of system, causes imaging system to become large-sized, it is difficult to the imaging system minimized.
Invention content
A kind of imaging system of embodiment of the present invention offer and electronic device.
The imaging system of embodiment of the present invention includes with positive refracting power successively along object side to the image side of optical axis
One lens, the second lens with refracting power, the third lens with refracting power, the 4th lens with refracting power, with just
5th lens of refracting power and the 6th lens with negative refracting power.The object side of first lens be convex surface, the described 5th
The object side of lens is concave surface at circumference, and the image side surface of the 5th lens is convex surface, and the image side surface of the 6th lens exists
It is concave surface at optical axis, the image side surface of the 6th lens is convex surface, the object side of the 6th lens and image side surface at circumference
At least one of surface include at least one point of inflexion.
The imaging system of embodiment of the present invention is configured by the above-mentioned reasonable lens to six pieces of lens, and imaging system is not only
Have good resolution to meet high-resolution demand, the height of imaging system can also be reduced to meet miniature requirement,
And the point of inflexion is set on the 6th lens can effectively suppress the light of off-axis visual field and be incident in angle on photosensitive element, to
The aberration of modified off-axis visual field improves image quality.
In some embodiments, the imaging system meets following relationship：
0<∣f/f2∣+∣f/f3∣<2；
Wherein, f is the focal length of the imaging system, and f2 is the focal length of second lens, and f3 is that the third lens are burnt
Away from.
When meeting above-mentioned relation formula so that the second lens and the third lens have proper focal power, to match synthesis
As the configuration of system entirety focal power, and be conducive to correct the aberration on picture periphery, improve the image quality of imaging system.
In some embodiments, the imaging system further includes diaphragm, and the imaging system meets following relationship：
SL/TTL>0.85；
Wherein, SL is distance of the diaphragm to imaging surface on optical axis, and TTL is the overall length of imaging system.
When meeting above-mentioned relation formula, can so that imaging system meets the needs of high pixel, solve imaging system low back,
The partially dark problem of shooting picture in big field angle, to expand time and environment workable for imaging system.
In some embodiments, the imaging system includes the first lens group and the second lens group, first lens
Group includes first lens, second lens and the third lens, second lens group include the 4th lens,
5th lens and the 6th lens, the imaging system meet following relationship：
-1<f13/f46<1；
Wherein, f13 is the combined focal length of first lens group, and f46 is the combined focal length of second lens group.
When meeting above-mentioned relation formula, the first lens, the third lens, the 5th lens and the 6th lens have proper light
Focal power is conducive to aberration correction to coordinate the configuration of imaging system entirety focal power, improves the image quality of imaging system, and
Be conducive to the miniaturization of imaging system.
In some embodiments, the imaging system meets following relationship：
∣R9/R10∣<6；
Wherein, R9 is the radius of curvature of the object side of the 5th lens, and R10 is the song of the image side surface of the 5th lens
Rate radius.
Meet the above conditions, the 5th lens have suitably sized, are conducive to the processing and manufacturing and camera shooting of the 5th lens
The assembling of camera lens promotes product yield.In addition, the radius of curvature of the object side and image side surface by the 5th lens of reasonable distribution,
Aberration balancing can be maintained, the image quality of pick-up lens is improved.
In some embodiments, the imaging system meets following relationship：
0<∣f/f5∣+∣f/f6∣<5；
Wherein, f is the focal length of the imaging system, and f5 is the focal length of the 5th lens, and f6 is the 6th lens
Focal length.
When meeting above-mentioned relation formula so that the 5th lens and the 6th lens have proper focal power, to match synthesis
As the configuration of system entirety focal power, and be conducive to correct the aberration on picture periphery, improve the image quality of imaging system.
In some embodiments, the imaging system meets following relationship：
(CT2+CT3+CT4)/f<0.3；
Wherein, f is the focal length of the imaging system, and CT2 is the center thickness of second lens, and CT3 is the third
The center thickness of lens, CT4 are the center thickness of the 4th lens.
When meeting above-mentioned relation formula, the second lens can be made more suitable to the thickness size of the 4th lens, on the one hand may be used
Reduce in manufacture it is difficult make yield to obtain higher eyeglass, and be conducive to mouldability of the eyeglass in ejection formation with it is even
Matter；On the other hand the height for being conducive to shorten entire imaging system, to promote the miniaturization of imaging system.
In some embodiments, the imaging system meets following relationship：
-40<V1-V2<40；
Wherein, V1 is the Abbe number of first lens, and V2 is the Abbe number of second lens.
When meeting above-mentioned relation formula, is conducive to the aberration for correcting imaging system, advantageously reduces aberration, improve imaging system
Image quality.
In some embodiments, the imaging system meets following relationship：
EPD/f>0.5；
Wherein, f is the focal length of the imaging system, and EPD is the Entry pupil diameters of the imaging system.
When meeting above-mentioned relation formula, is conducive to expand Entry pupil diameters, increases luminous flux, promote image quality, while can be
Good balance is obtained in telecentricity and wide-angle characteristic, and is unlikely to keep imaging system entirety total length long.
The electronic device of embodiment of the present invention includes the imaging system and photosensitive element described in any of the above-described embodiment,
The photosensitive element is arranged in the image side of the imaging system.
The electronic device of embodiment of the present invention is configured by the above-mentioned reasonable lens to six pieces of lens, and imaging system is not only
Have good resolution to meet high-resolution demand, the height of imaging system can also be reduced to meet miniature requirement,
And the point of inflexion is set on the 6th lens can effectively suppress the light of off-axis visual field and be incident in angle on photosensitive element, to
The aberration of modified off-axis visual field improves image quality.
The additional aspect and advantage of embodiment of the present invention will be set forth in part in the description, partly will be from following
Become apparent in description, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention can be from the description in conjunction with following accompanying drawings to embodiment
It will be apparent and be readily appreciated that, wherein：
Fig. 1 is the structural schematic diagram of the imaging system of first embodiment of the invention；
Fig. 2 is the longitudinal aberration diagram (mm) of imaging system in first embodiment；
Fig. 3 is the curvature of field figure (mm) of imaging system in first embodiment；
Fig. 4 is the distortion figure (%) of imaging system in first embodiment；
Fig. 5 is the structural schematic diagram of the imaging system of second embodiment of the invention；
Fig. 6 is the longitudinal aberration diagram (mm) of imaging system in second embodiment；
Fig. 7 is the curvature of field figure (mm) of imaging system in second embodiment；
Fig. 8 is the distortion figure (%) of imaging system in second embodiment；
Fig. 9 is the structural schematic diagram of the imaging system of third embodiment of the invention；
Figure 10 is the longitudinal aberration diagram (mm) of imaging system in third embodiment；
Figure 11 is the curvature of field figure (mm) of imaging system in third embodiment；
Figure 12 is the distortion figure (%) of imaging system in third embodiment；
Figure 13 is the structural schematic diagram of the imaging system of four embodiment of the invention；
Figure 14 is the longitudinal aberration diagram (mm) of imaging system in the 4th embodiment；
Figure 15 is the curvature of field figure (mm) of imaging system in the 4th embodiment；
Figure 16 is the distortion figure (%) of imaging system in the 4th embodiment；
Figure 17 is the structural schematic diagram of the electronic device of embodiment of the present invention；
Figure 18 is the structural schematic diagram of the electronic device of embodiment of the present invention；With
Figure 19 is the structural schematic diagram of the electronic device of another embodiment of the present invention；
Specific implementation mode
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, do not indicate or imply the indicated device or element must have a particular orientation, with spy
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.
" first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more feature.?
In description of the invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be to be electrically connected or can mutually communicate to be mechanical connection；It can be directly connected, it can also be by between intermediary
It connects connected, can be the interaction relationship of the connection or two elements inside two elements.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Also referring to Fig. 1, Fig. 5, Fig. 9 and Figure 13, the imaging system 10 of embodiment of the present invention along optical axis object side
Include the first lens L1 with positive refracting power, the second lens L2 with refracting power, with refracting power successively to image side
Three lens L3, the 4th lens L4 with refracting power and the 5th lens L5 with positive refracting power and with negative refracting power
Six lens L6.
It is convex surface that first lens L1, which has the object side S1 of object side S1 and image side surface S2, the first lens L1,.Second lens
L2 has object side S3 and image side surface S4.The third lens L3 has object side S5 and image side surface S6.4th lens L4 has object side
Face S7 and image side surface S8.5th lens L5 has object side S9 and image side surface S10, and the object side S9 of the 5th lens L5 is at circumference
Image side surface S10 for concave surface, the 5th lens L5 is convex surface.6th lens L6 has object side S11 and image side surface S12, and the 6th thoroughly
The image side surface S12 of mirror L6 is concave surface at optical axis, and the image side surface S12 of the 6th lens L6 is convex surface, the 6th lens L6 at circumference
Object side S11 and the surface at least one of image side surface S12 include at least one point of inflexion.For example, the object of the 6th lens L6
Side S11 includes at least one point of inflexion；Alternatively, the image side surface S12 of the 6th lens L6 includes at least one point of inflexion；Alternatively,
The object side S11 of 6th lens L6 includes at least one point of inflexion, and the image side surface S12 of the 6th lens L6 also includes at least one anti-
Qu Dian.
The imaging system 10 of embodiment of the present invention is by the above-mentioned reasonable disposition to six pieces of lens, and imaging system 10 is not only
Have good resolution to meet high-resolution demand, the height of imaging system 10 can also be reduced to meet miniaturization need
It asks, and on the 6th lens L6 the point of inflexion is set can effectively suppress the light of off-axis visual field and be incident in photosensitive element 20 (Figure 17)
On angle, to modified off-axis visual field aberration, improve image quality.
When imaging system 10 is for when being imaged, the light that subject OBJ sends out or reflects to enter into from object side direction
As system 10, and sequentially pass through the first lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5, the
Six lens L6 and infrared fileter L7 with object side S13 and image side surface S14, finally converge on imaging surface S15.
In some embodiments, imaging system 10 further includes diaphragm (not shown).Diaphragm can be aperture diaphragm or regard
Field diaphragm.Embodiment of the present invention is illustrated so that diaphragm (not shown) is aperture diaphragm as an example.Diaphragm (not shown) can be set
It sets on the surface of any one piece of lens, or is arranged before the first lens L1, or be arranged between arbitrary two pieces of lens, or set
It sets between the 6th lens L6 and infrared fileter L7.For example, in first embodiment and second embodiment, diaphragm (figure
Do not show) it is arranged on the object side S3 of the second lens L2；In third embodiment and the 4th embodiment, diaphragm (not shown)
It is arranged on the image side surface S2 of the first lens L1.
In some embodiments, imaging system 10 meets following relationship：
0<∣f/f2∣+∣f/f3∣<2；
Wherein, f is the focal length of imaging system 10, and f2 is the focal length of the second lens L2, and f3 is the third lens L3 focal lengths.
In other words, any number that ∣ f/f2 ∣+∣ f/f3 ∣ can be between section (0,2), for example, the value can be
0.1、0.15、0.25、0.3、0.4、0.5、0.55、0.6、0.7、0.8、0.9、0.95、1、1.05、1.2、1.3、1.4、1.5、
1.6,1.7,1.8,1.9,1.95,1.98 etc..
When meeting above-mentioned relation formula so that the second lens L2 and the third lens L3 has proper focal power, to match
The configuration of the whole focal power of synthesized image system 10, and be conducive to correct the aberration on picture periphery, improve imaging system 10 at
As quality.
In some embodiments, imaging system 10 meets following relationship：
SL/TTL>0.85；
Wherein, SL is distance of the diaphragm (not shown) to photosensitive element 20 (imaging surface S15) on optical axis, and TTL is imaging
The overall length of system 10, in other words, the distance of the object side S1 of the first lens L1 to imaging surface S15 on optical axis.
In other words, any number that SL/TTL can be between section (0.85 ,+∞), for example, the value can be
0.86,0.87,0.89,0.9,0.92,0.95,0.98,1,2,4,5 etc..
When meeting above-mentioned relation formula, imaging system 10 can be made to meet the needs of high pixel, it is low to solve imaging system 10
The partially dark problem of picture is shot in the back of the bodyization, big field angle, to expand time and environment workable for imaging system 10.
In some embodiments, imaging system 10 includes the first lens group 12 and the second lens group 14, the first lens group
12 include above-mentioned first lens L1, the second lens 12 and the third lens 13, and the second lens group 14 includes above-mentioned 4th lens L4, the
Five lens L5 and the 6th lens L6, imaging system 10 meet following relationship：
-1<f13/f46<1；
Wherein, f13 is the combined focal length of the first lens group 12, and f46 is the combined focal length of the second lens group 14.
In other words, any number that f13/f46 can be between section (- 1,1), for example, the value can be -0.98, -
0.95、-0.85、-0.7、-0.65、-0.5、-0.4、-0.25、-0.1、0、0.05、0.1、0.14、0.2、0.25、0.3、0.4、
0.5,0.6,0.7,0.8,0.9,0.95,0.98 etc..
When meeting above-mentioned relation formula, the first lens L1 to the 6th lens L6 has proper focal power, to match synthesis
As the configuration of the whole focal power of system 10, be conducive to aberration correction, improve the image quality of imaging system 10, and is conducive to be imaged
The miniaturization of system 10.
In some embodiments, imaging system 10 meets following relationship：
∣R9/R10∣<6；
Wherein, R9 is the radius of curvature of the object side S9 of the 5th lens L5, and R10 is the image side surface S10's of the 5th lens L5
Radius of curvature.
In other words, any number that ∣ R9/R10 ∣ can be between section (0,6), for example, the value can be 0.5,
0.6、0.8、1、1.2、1.3、1.4、1.6、2、2.5、3、3.4、3.5、3.7、3.8、4、4.2、4.4、4.6、4.8、5、5.2、
5.4,5.6,5.7,5.75,5.8,5.84,5.9,5.95 etc..
Meet the above conditions, the 5th lens L5 have it is suitably sized, be conducive to the 5th lens L5 processing and manufacturing and
The assembling of imaging system 10 promotes product yield.In addition, passing through the object side S9 and image side surface of the 5th lens L5 of reasonable distribution
The radius of curvature of S10 can maintain aberration balancing, improve the image quality of imaging system 10.
In some embodiments, imaging system 10 meets following relationship：
0<∣f/f5∣+∣f/f6∣<5；
Wherein, f5 is the focal length of the 5th lens L5, and f6 is the focal length of the 6th lens L6.
In other words, any number that ∣ f/f5 ∣+∣ f/f6 ∣ can be between section (0,5), for example, the value can be
0.05,0.1,0.2,0.4,0.7,0.8,0.95,1,1.2,1.4,1.7,2,2.5,3,3.4,4,4.5,4.8,4.9 etc..
When meeting above-mentioned relation formula so that the 5th lens L5 and the 6th lens L6 has proper focal power, to match
The configuration of the whole focal power of synthesized image system 10, and be conducive to correct the aberration on picture periphery, improve imaging system 10 at
As quality.
In some embodiments, imaging system 10 meets following relationship：
(CT2+CT3+CT4)/f<0.3；
Wherein, CT2 is the center thickness of the second lens L2, and CT3 is the center thickness of the third lens L3, and CT4 is the 4th saturating
The center thickness of mirror L4.
In other words, any number that (CT2+CT3+CT4)/f can be between section (0,0.3), for example, the value can be with
It is 0.05,0.1,0.15,0.18,0.2,0.22,0.25,0.28,0.29 etc..
When meeting above-mentioned relation formula, the second lens L2 can be made more suitable to the thickness size of the 4th lens L4, a side
Face can reduce the difficulty in manufacture and make yield to obtain higher eyeglass, and be conducive to mouldability of the eyeglass in ejection formation
With homogeneity；On the other hand the height for being conducive to shorten entire imaging system 10, to promote the miniaturization of imaging system 10.
In some embodiments, imaging system 10 meets following relationship：
-40<V1-V2<40；
Wherein, V1 is the Abbe number of the first lens L1, and V2 is the Abbe number of the second lens L2.
In other words, any number that V1-V2 can be between section (- 40,40), for example, the value can be -39, -
36、-30、-24、-20、-15、-10、-8、-7、-5.5、-4.8、-2.4、-1、0、1、2、4、5.5、7、8、10、15、20、24、
30,36,39 etc..
When meeting above-mentioned relation formula, be conducive to the aberration for correcting imaging system 10, advantageously reduce aberration, improves imaging system
The image quality of system 10.
Incorporated by reference to Figure 17, in some embodiments, imaging system 10 meets following relationship：
EPD/f>0.5；
Wherein, EPD is the Entry pupil diameters of imaging system 10.
In other words, any number that EPD/f can be between section (0.5 ,+∞), for example, the value can be 0.51,
0.55,0.6,0.65,0.7,0.74,0.8,0.85,0.9,0.98,1,1.5,2,4,7,8 etc..
When meeting above-mentioned relation formula, is conducive to expand Entry pupil diameters, increases luminous flux, promote image quality, while can be
Good balance is obtained in telecentricity and wide-angle characteristic, and is unlikely to keep the whole total length of imaging system 10 long.
When meeting above-mentioned relation formula, imaging system 10 has smaller height, is advantageously implemented miniaturization.
In some embodiments, the first lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens
The material of L5 and the 6th lens L6 are plastics.
Since the first lens L1 to the 6th lens L6 is all made of plastic lens, imaging system 10 is effectively eliminating aberration, is expiring
While foot high pixel demand, ultrathin may be implemented, and cost is relatively low.
In some embodiments, at least one surface of at least one lens is aspherical in imaging system 10.Example
Such as, in first embodiment, the first lens L1 to the object side of the 6th lens L6 and image side surface is aspherical.
In some embodiments, the first lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens
L5 and the 6th lens L6 is aspherical mirror.Aspherical face type is determined by following formula：
Wherein, Z is the fore-and-aft distance of aspherical any point and surface vertices, and r is aspherical any point to optical axis
Distance, c are vertex curvature (inverses of radius of curvature), and k is the constant of the cone, and Ai is the correction factor of aspherical i-th-th ranks.
In this way, imaging system 10 can be effectively reduced by the radius of curvature and asphericity coefficient of each lens surface of adjusting
The total length of imaging system 10, and can effectively aberration correction, improve image quality.
First embodiment
It please refers to Fig.1 to Fig.4, imaging system 10 meets the condition of following table：
Table 1
In table 1, EFL is the effective focal length of imaging system 10, and FNO is the coke ratio of imaging system 10, and FOV is imaging system 10
Field angle.
Table 2
| Face serial number | S1 | S2 | S3 | S4 | S5 | S6 |
| K | -1.09E+01 | -1.34E+01 | -9.98E+00 | -9.90E+01 | 4.61E+01 | -1.90E+01 |
| A4 | 2.76E-01 | 5.31E-02 | -2.60E-02 | -1.08E-01 | -1.22E-01 | 1.10E-01 |
| A6 | -5.09E-01 | -1.95E-01 | -1.00E-02 | 6.45E-01 | 7.50E-01 | -2.83E-02 |
| A8 | 9.91E-01 | 1.34E-01 | -3.59E-01 | -2.55E+00 | -2.93E+00 | -1.26E-01 |
| A10 | -1.78E+00 | 1.10E-01 | 1.48E+00 | 5.86E+00 | 7.03E+00 | 2.98E-01 |
| A12 | 2.40E+00 | -7.23E-01 | -3.32E+00 | -8.66E+00 | -1.15E+01 | -4.21E-01 |
| A14 | -2.26E+00 | 1.40E+00 | 4.69E+00 | 8.42E+00 | 1.26E+01 | 3.83E-01 |
| A16 | 1.36E+00 | -1.32E+00 | -3.87E+00 | -5.20E+00 | -8.91E+00 | -1.07E-01 |
| A18 | -4.56E-01 | 6.35E-01 | 1.70E+00 | 1.83E+00 | 3.63E+00 | -8.49E-02 |
| A20 | 6.46E-02 | -1.26E-01 | -3.09E-01 | -2.78E-01 | -6.45E-01 | 5.57E-02 |
| Face serial number | S7 | S8 | S9 | S10 | S11 | S12 |
| K | 7.57E+01 | 9.90E+01 | -5.66E+01 | 9.90E+01 | -3.79E+00 | -4.04E+00 |
| A4 | -8.55E-02 | -5.60E-02 | 2.01E-01 | 1.51E-01 | -3.00E-01 | -1.69E-01 |
| A6 | -4.48E-02 | -2.51E-01 | -4.97E-01 | -1.66E-01 | 2.11E-01 | 1.04E-01 |
| A8 | 6.69E-02 | 6.61E-01 | 7.55E-01 | 6.37E-02 | -1.50E-01 | -5.63E-02 |
| A10 | 6.84E-01 | -9.79E-01 | -9.58E-01 | -1.21E-02 | 7.89E-02 | 2.13E-02 |
| A12 | -2.58E+00 | 9.95E-01 | 8.62E-01 | 4.08E-03 | -2.62E-02 | -5.42E-03 |
| A14 | 4.23E+00 | -6.99E-01 | -5.10E-01 | -3.92E-03 | 5.40E-03 | 9.45E-04 |
| A16 | -3.76E+00 | 3.32E-01 | 1.85E-01 | 1.78E-03 | -6.77E-04 | -1.11E-04 |
| A18 | 1.78E+00 | -9.57E-02 | -3.68E-02 | -3.52E-04 | 4.76E-05 | 7.87E-06 |
| A20 | -3.52E-01 | 1.22E-02 | 3.05E-03 | 2.59E-05 | -1.45E-06 | -2.54E-07 |
The TTL=4.65 of first embodiment, meets miniature requirement.
Second embodiment
Fig. 5 to Fig. 8 is please referred to, imaging system 10 meets the condition of following table：
Table 3
In table 3, EFL is the effective focal length of imaging system 10, and FNO is the coke ratio of imaging system 10, and FOV is imaging system 10
Field angle.
Table 4
| Face serial number | S1 | S2 | S3 | S4 | S5 | S6 |
| K | 2.83E-01 | 8.94E+01 | 1.80E+00 | -1.38E+01 | -6.31E+00 | 1.68E+01 |
| A4 | -1.02E-02 | -1.68E-01 | -3.32E-01 | -2.82E-02 | -2.01E-01 | -1.68E-01 |
| A6 | 7.13E-02 | 8.64E-01 | 1.29E+00 | 4.04E-01 | 1.25E-01 | 7.60E-02 |
| A8 | -1.54E-01 | -1.98E+00 | -2.81E+00 | -9.13E-01 | -1.94E-01 | -6.97E-02 |
| A10 | 1.43E-01 | 2.89E+00 | 3.84E+00 | 1.11E+00 | 1.23E-01 | 3.26E-02 |
| A12 | 6.57E-02 | -2.56E+00 | -3.17E+00 | -7.68E-01 | -1.20E-01 | -1.32E-02 |
| A14 | -1.76E-01 | 1.23E+00 | 1.42E+00 | 1.78E-01 | 3.79E-02 | -1.24E-02 |
| A16 | 8.25E-02 | -2.24E-01 | -2.68E-01 | 2.29E-02 | 4.11E-02 | 2.36E-02 |
| A18 | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | -1.59E-06 | 3.78E-06 |
| A20 | 0.00E+00 | 0.00E+00 | 0.00E+00 | 0.00E+00 | -3.26E-07 | 3.69E-07 |
| Face serial number | S7 | S8 | S9 | S10 | S11 | S12 |
| K | 9.00E+01 | -7.67E+01 | 1.89E+00 | -4.44E+00 | -6.94E-01 | -9.86E-01 |
| A4 | -7.21E-02 | -1.07E-01 | -3.96E-03 | -6.16E-02 | -8.43E-02 | -3.55E-01 |
| A6 | 1.44E-02 | -4.78E-03 | -1.82E-02 | 7.55E-02 | 2.24E-02 | 3.01E-01 |
| A8 | 1.62E-02 | -1.41E-02 | 5.22E-03 | -3.85E-02 | 4.42E-03 | -2.01E-01 |
| A10 | 2.73E-04 | 7.20E-03 | -1.30E-02 | 1.76E-02 | -2.49E-03 | 9.28E-02 |
| A12 | -2.36E-03 | 2.43E-03 | 7.46E-03 | -5.93E-03 | 3.77E-04 | -2.87E-02 |
| A14 | -3.23E-03 | 1.89E-03 | -4.74E-04 | 1.09E-03 | -2.17E-05 | 5.79E-03 |
| A16 | 9.75E-04 | -4.74E-04 | -1.88E-04 | -7.82E-05 | 2.33E-07 | -7.31E-04 |
| A18 | 5.85E-06 | 2.90E-05 | -1.11E-06 | -5.81E-08 | 3.40E-10 | 5.23E-05 |
| A20 | -2.55E-06 | 5.55E-07 | -6.85E-07 | -4.35E-08 | 4.99E-10 | -1.62E-06 |
The TTL=4.75 of second embodiment, meets miniature requirement.
Third embodiment
Fig. 9 to Figure 12 is please referred to, imaging system 10 meets the condition of following table：
Table 5
In table 5, EFL is the effective focal length of imaging system 10, and FNO is the coke ratio of imaging system 10, and FOV is imaging system 10
Field angle.
Table 6
The TTL=4.75 of third embodiment, meets miniature requirement.
4th embodiment
3 to Figure 16 are please referred to Fig.1, imaging system 10 meets the condition of following table：
Table 7
In table 7, EFL is the effective focal length of imaging system 10, and FNO is the coke ratio of imaging system 10, and FOV is imaging system 10
Field angle.
Table 8
The TTL=4.75 of 4th embodiment, meets miniature requirement.
7 and Figure 18 is please referred to Fig.1, the imaging system 10 of embodiment of the present invention can be applied to the electricity of embodiment of the present invention
Sub-device 100.Electronic device 100 includes the imaging system 10 and photosensitive element 20 of any of the above-described embodiment.Photosensitive element 20
It is arranged in the image side of imaging system 10.
Specifically, complementary metal oxide semiconductor (CMOS, Complementary may be used in photosensitive element 20
Metal Oxide Semiconductor) imaging sensor or charge coupled cell (CCD, Charge-coupled
Device) imaging sensor.
The imaging system 10 of the electronic device 100 of embodiment of the present invention by the above-mentioned reasonable disposition to six pieces of lens,
Imaging system 10 not only has good resolution to meet high-resolution demand, can also reduce the height of imaging system 10 with
Meet the needs of miniaturization, and on the 6th lens L6 the point of inflexion is set can effectively suppress the light of off-axis visual field and be incident in sense
Angle on optical element 20 improves image quality to the aberration of modified off-axis visual field.
The electronic device 100 of embodiment of the present invention includes but not limited to for smart phone (as shown in figure 18), mobile electricity
Words, personal digital assistant (Personal Digital Assistant, PDA), game machine, personal computer (personal
Computer, PC), camera (as shown in figure 17), smartwatch, tablet computer (such as Figure 19) information terminal apparatus or with clap
According to the household appliances etc. of function.
In the description of this specification, reference term " certain embodiments ", " embodiment ", " some embodiment party
The description of formula ", " exemplary embodiment ", " example ", " specific example " or " some examples " etc. means in conjunction with the embodiment party
Formula or example particular features, structures, materials, or characteristics described are contained at least one embodiment or example of the present invention
In.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover,
Particular features, structures, materials, or characteristics described can be in any one or more embodiments or example with suitable
Mode combine.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two,
Three etc., unless otherwise specifically defined.
Although embodiments of the present invention have been shown and described above, it is to be understood that the above embodiment is
Illustratively, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be right
The above embodiment is changed, changes, replacing and modification, and the scope of the present invention is limited by claim and its equivalent.
Claims (10)
1. a kind of imaging system, which is characterized in that the imaging system includes successively along object side to the image side of optical axis：
The object side of the first lens with positive refracting power, first lens is convex surface；
The second lens with refracting power；
The third lens with refracting power；
The 4th lens with refracting power；
The object side of the 5th lens with positive refracting power, the 5th lens is concave surface at circumference, the 5th lens
Image side surface is convex surface；And
The image side surface of the 6th lens with negative refracting power, the 6th lens is concave surface at optical axis, the 6th lens
Image side surface is convex surface at circumference, and at least one of the object side of the 6th lens and image side surface surface include at least one
The point of inflexion.
2. imaging system according to claim 1, which is characterized in that the imaging system meets following relationship：
0<∣f/f2∣+∣f/f3∣<2；
Wherein, f is the focal length of the imaging system, and f2 is the focal length of second lens, and f3 is the third lens focal length.
3. imaging system according to claim 1, which is characterized in that the imaging system further includes diaphragm, the imaging
System meets following relationship：
SL/TTL>0.85；
Wherein, SL is distance of the diaphragm to photosensitive element on optical axis, and TTL is the overall length of the imaging system.
4. imaging system according to claim 1, which is characterized in that the imaging system includes the first lens group and second
Lens group, first lens group include first lens, second lens and the third lens, second lens
Group includes the 4th lens, the 5th lens and the 6th lens, and the imaging system meets following relationship：
-1<f13/f46<1；
Wherein, f13 is the combined focal length of first lens group, and f46 is the combined focal length of second lens group.
5. imaging system according to claim 1, which is characterized in that the imaging system meets following relationship：
∣R9/R10∣<6；
Wherein, R9 is the radius of curvature of the object side of the 5th lens, and R10 is the curvature half of the image side surface of the 5th lens
Diameter.
6. imaging system according to claim 1, which is characterized in that the imaging system meets following relationship：
0<∣f/f5∣+∣f/f6∣<5；
Wherein, f is the focal length of the imaging system, and f5 is the focal length of the 5th lens, and f6 is the focal length of the 6th lens.
7. imaging system according to claim 1, which is characterized in that the imaging system meets following relationship：
(CT2+CT3+CT4)/f<0.3；
Wherein, f is the focal length of the imaging system, and CT2 is the center thickness of second lens, and CT3 is the third lens
Center thickness, CT4 be the 4th lens center thickness.
8. imaging system according to claim 1, which is characterized in that the imaging system meets following relationship：
-40<V1-V2<40；
Wherein, V1 is the Abbe number of first lens, and V2 is the Abbe number of second lens.
9. imaging system according to claim 1, which is characterized in that the imaging system meets following relationship：
EPD/f>0.5；
Wherein, f is the focal length of the imaging system, and EPD is the Entry pupil diameters of the imaging system.
10. a kind of electronic device, which is characterized in that the electronic device includes：
Imaging system described in claim 1 to 9 any one；And
Photosensitive element, the photosensitive element are arranged in the image side of the imaging system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810551272.9A CN108802970A (en) | 2018-05-31 | 2018-05-31 | imaging system and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810551272.9A CN108802970A (en) | 2018-05-31 | 2018-05-31 | imaging system and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108802970A true CN108802970A (en) | 2018-11-13 |
Family
ID=64089700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810551272.9A Pending CN108802970A (en) | 2018-05-31 | 2018-05-31 | imaging system and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108802970A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856767A (en) * | 2018-12-27 | 2019-06-07 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN110346904A (en) * | 2019-06-29 | 2019-10-18 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN112817127A (en) * | 2021-01-27 | 2021-05-18 | 江西晶超光学有限公司 | Optical imaging lens, image capturing device and electronic equipment |
| US11215798B2 (en) | 2019-09-06 | 2022-01-04 | Largan Precision Co., Ltd. | Photographing optical lens system, image capturing unit and electronic device |
| TWI764259B (en) * | 2020-06-09 | 2022-05-11 | 鴻海精密工業股份有限公司 | Optical lens and electronic device with the optical lens |
-
2018
- 2018-05-31 CN CN201810551272.9A patent/CN108802970A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856767A (en) * | 2018-12-27 | 2019-06-07 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN109856767B (en) * | 2018-12-27 | 2021-03-23 | 瑞声光学解决方案私人有限公司 | Image pickup optical lens |
| CN110346904A (en) * | 2019-06-29 | 2019-10-18 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN110346904B (en) * | 2019-06-29 | 2021-08-17 | 瑞声光学解决方案私人有限公司 | Image pickup optical lens |
| US11215798B2 (en) | 2019-09-06 | 2022-01-04 | Largan Precision Co., Ltd. | Photographing optical lens system, image capturing unit and electronic device |
| TWI764259B (en) * | 2020-06-09 | 2022-05-11 | 鴻海精密工業股份有限公司 | Optical lens and electronic device with the optical lens |
| CN112817127A (en) * | 2021-01-27 | 2021-05-18 | 江西晶超光学有限公司 | Optical imaging lens, image capturing device and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106291882B (en) | Pick-up lens | |
| CN108802970A (en) | imaging system and electronic device | |
| CN109164556B (en) | Optical camera lens assembly and image capturing device | |
| CN105607232B (en) | Telephoto lens | |
| CN208297813U (en) | Pick-up lens, image-taking device and electronic device | |
| CN101276038A (en) | Imaging lens, camera module, and portable terminal apparatus | |
| CN208654422U (en) | Phtographic lens, image-taking device and electronic device | |
| CN101430416A (en) | Imaging lens having three-lens configuration, camera module, and portable terminal equipment | |
| CN109839726A (en) | Camera optical camera lens | |
| CN108983397B (en) | Image capturing lens assembly and image capturing device | |
| CN110967805B (en) | Optical camera lens assembly, image capturing module and electronic device | |
| CN109828359A (en) | Camera optical camera lens | |
| CN208907940U (en) | Optical camera lens group, taken module and electronic device | |
| CN109960005A (en) | Pick-up lens and electronic device | |
| CN112433340A (en) | Optical system, lens module and electronic equipment | |
| CN110531490A (en) | Camera optical camera lens | |
| CN111077635A (en) | Optical camera lens, image capturing module and electronic device | |
| CN109828355A (en) | Camera optical camera lens | |
| CN109960009A (en) | Pick-up lens and electronic device | |
| CN110673300B (en) | Optical pick-up lens, image capturing device and electronic device | |
| CN207764465U (en) | Pick-up lens and electronic device | |
| WO2022110066A1 (en) | Optical imaging system, image capturing module and electronic device | |
| CN110007427A (en) | Camera optical camera lens | |
| CN208156287U (en) | imaging system and electronic device | |
| CN207764462U (en) | Pick-up lens and electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 330096 No.699 Tianxiang North Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Applicant after: Jiangxi Jingchao optics Co.,Ltd. Address before: 330096 Jiangxi Nanchang Nanchang hi tech Industrial Development Zone, east of six road, south of Tianxiang Avenue. Applicant before: OFILM TECH Co.,Ltd. |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |