CN108761737A - Optical imaging system - Google Patents
Optical imaging system Download PDFInfo
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- CN108761737A CN108761737A CN201810831541.7A CN201810831541A CN108761737A CN 108761737 A CN108761737 A CN 108761737A CN 201810831541 A CN201810831541 A CN 201810831541A CN 108761737 A CN108761737 A CN 108761737A
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- lens
- imaging system
- optical imaging
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- image side
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
This application discloses a kind of optical imaging system, which includes sequentially by object side to image side along optical axis：First lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, it is concave surface that the first lens, which have negative power, image side surface,；Second lens have positive light coke；The third lens have positive light coke, and object side and image side surface are convex surface；4th lens have focal power；5th lens have focal power；It is convex surface that 6th lens, which have focal power, object side, and image side surface is concave surface.The half ImgH of effective pixel area diagonal line length meets 0 < DT12/ImgH < 1 on the effective half bore DT12 of maximum of the image side surface of first lens and the imaging surface of optical imaging system.
Description
Technical field
This application involves a kind of optical imaging systems, more specifically, this application involves a kind of optics including six-element lens
Imaging system.
Background technology
In recent years, it is configured with such as photosensitive coupling element (CCD) or Complimentary Metal-Oxide semiconductor element (CMOS)
For the imaging lens of common photosensitive element in each field extensive use, these camera lenses can be not only used for capture images, can also answer
For space orientation technique.However, conventional lenses cannot achieve the critical alignment to f- θ distortion mostly, thus can not obtain
Has higher positioning accuracy while preferable image quality.
Meanwhile with the raising of the common photosensitive element performance such as CCD or CMOS and the reduction of size so that photosensitive element
Pixel number increases and pixel dimension reduces, higher to be proposed to the high image quality of camera lens to match and miniaturization
It is required that.
High imaging quality, positioning accuracy and the optical system of miniaturization can be well taken into account therefore, it is necessary to a kind of.
Invention content
This application provides be applicable to portable electronic product, can at least solve or part solve it is in the prior art
The optical imaging system of above-mentioned at least one disadvantage, for example, wide-angle lens.
The one side of the application discloses such a optical imaging system, the imaging system along optical axis by object side extremely
Image side includes sequentially：First lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein, first
Lens can have negative power, and image side surface can be concave surface；Second lens can have positive light coke；The third lens can have positive light
Focal power, object side and image side surface can be convex surface；4th lens have focal power；5th lens have focal power；6th thoroughly
Mirror, which has focal power, object side, to be convex surface, and image side surface can be concave surface.Wherein, the maximum of the image side surface of the first lens is effective
The half ImgH of effective pixel area diagonal line length can meet 0 < on the imaging surface of half bore DT12 and optical imaging system
DT12/ImgH < 1.
In one embodiment, the effective focal length f1 of the first lens, the effective focal length f3 of the third lens and optical imagery
Total effective focal length f of system can meet 1 < (| f1 |+| f3 |)/f < 3.
In one embodiment, total effective focal length f of the effective focal length f4 of the 4th lens and optical imaging system can expire
1 < of foot | f4/f | < 2.
In one embodiment, the effective focal length f5 and optical imagery of the effective focal length f4 of the 4th lens, the 5th lens
Total effective focal length f of system can meet 0 < | f4/f+f5/f | < 3.
In one embodiment, the object side of the maximum effective half bore DT11 and the third lens of the object side of the first lens
The effective half bore DT31 of maximum in face can meet 0 < DT31/DT11 < 1.
In one embodiment, the first lens on optical axis center thickness CT1 and the 6th lens on optical axis
Heart thickness CT6 can meet 0 < CT1/CT6 < 2.
In one embodiment, spacing distance T34, the 4th lens and of the third lens and the 4th lens on optical axis
Spacing distance T45 and fiveth lens and sixth lens spacing distance T56 on optical axis of five lens on optical axis can meet 0 <
T34/ (T45+T56) < 0.5.
In one embodiment, total effective coke of the radius of curvature R 6 of the image side surface of the third lens and optical imaging system
It can meet -1.5 < R6/f < 0 away from f.
In one embodiment, the song of the image side surface of the radius of curvature R 11 and the 6th lens of the object side of the 6th lens
Rate radius R12 can meet 0 < R12/R11 < 2.
In one embodiment, the object side of the first lens can have at least one point of inflexion.
In one embodiment, the object side of the first lens to optical imaging system distance of the imaging surface on optical axis
The half ImgH of effective pixel area diagonal line length can meet TTL/ImgH < 3 on the imaging surface of TTL and optical imaging system.
In one embodiment, the maximum angle of half field-of view HFOV of optical imaging system can meet HFOV >=70 °.
Further aspect of the application discloses such a optical imaging system, and the imaging system is along optical axis by object side
Include sequentially to image side：First lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.Wherein,
One lens can have negative power, and image side surface can be concave surface；Second lens can have positive light coke；The third lens can have just
Focal power, object side and image side surface can be convex surface；4th lens have focal power；5th lens have focal power；6th
Lens, which have focal power, object side, to be convex surface, and image side surface can be concave surface.Wherein, the effective focal length f1 of the first lens, third
The effective focal length f3 of lens and total effective focal length f of optical imaging system can meet 1 < (| f1 |+| f3 |)/f < 3；And first
Have on the object side of lens to the imaging surface of distance TTL and optical imaging system of the imaging surface on optical axis of optical imaging system
The half ImgH of effect pixel region diagonal line length can meet TTL/ImgH < 3.
The application uses multi-disc (for example, six) lens, by each power of lens of reasonable distribution, face type, each
Spacing etc. on axis between the center thickness of mirror and each lens so that above-mentioned optical imaging system has miniaturization, wide-angle, height
At least one advantageous effect such as positioning accuracy, high imaging quality.
Description of the drawings
In conjunction with attached drawing, by the detailed description of following non-limiting embodiment, other features of the application, purpose and excellent
Point will be apparent.In the accompanying drawings：
Fig. 1 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 1；
Fig. 2A to Fig. 2 C respectively illustrate chromatic curve on the axis of the optical imaging system of embodiment 1, astigmatism curve and
Ratio chromatism, curve；
Fig. 3 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 2；
Fig. 4 A to Fig. 4 C respectively illustrate chromatic curve on the axis of the optical imaging system of embodiment 2, astigmatism curve and
Ratio chromatism, curve；
Fig. 5 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 3；
Fig. 6 A to Fig. 6 C respectively illustrate chromatic curve on the axis of the optical imaging system of embodiment 3, astigmatism curve and
Ratio chromatism, curve；
Fig. 7 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 4；
Fig. 8 A to Fig. 8 C respectively illustrate chromatic curve on the axis of the optical imaging system of embodiment 4, astigmatism curve and
Ratio chromatism, curve；
Fig. 9 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 5；
Figure 10 A to Figure 10 C respectively illustrate chromatic curve on the axis of the optical imaging system of embodiment 5, astigmatism curve with
And ratio chromatism, curve；
Figure 11 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 6；
Figure 12 A to figure 12 C respectively illustrate chromatic curve on the axis of the optical imaging system of embodiment 6, astigmatism curve with
And ratio chromatism, curve；
Figure 13 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 7；
Figure 14 A to Figure 14 C respectively illustrate chromatic curve on the axis of the optical imaging system of embodiment 7, astigmatism curve with
And ratio chromatism, curve；
Figure 15 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 8；
Figure 16 A to Figure 16 C respectively illustrate chromatic curve on the axis of the optical imaging system of embodiment 8, astigmatism curve with
And ratio chromatism, curve；
Figure 17 shows the structural schematic diagrams according to the optical imaging system of the embodiment of the present application 9；
Figure 18 A to Figure 18 C respectively illustrate chromatic curve on the axis of the optical imaging system of embodiment 9, astigmatism curve with
And ratio chromatism, curve.
Specific implementation mode
Refer to the attached drawing is made more detailed description by the application in order to better understand to the various aspects of the application.It answers
Understand, the description of the only illustrative embodiments to the application is described in detail in these, rather than limits the application in any way
Range.In the specification, the identical element of identical reference numbers.It includes associated institute to state "and/or"
Any and all combinations of one or more of list of items.
It should be noted that in the present specification, first, second, third, etc. statement is only used for a feature and another spy
Sign distinguishes, and does not indicate that any restrictions to feature.Therefore, without departing substantially from teachings of the present application, hereinafter
The first lens discussed are also known as the second lens or the third lens.
In the accompanying drawings, for convenience of description, thickness, the size and shape of lens are slightly exaggerated.Specifically, attached drawing
Shown in spherical surface or aspherical shape be illustrated by way of example.That is, spherical surface or aspherical shape are not limited to attached drawing
Shown in spherical surface or aspherical shape.Attached drawing is merely illustrative and and non-critical drawn to scale.
Herein, near axis area refers to the region near optical axis.If lens surface is convex surface and does not define convex surface position
When setting, then it represents that the lens surface is convex surface near axis area is less than；If lens surface is concave surface and does not define the concave surface position
When, then it represents that the lens surface is concave surface near axis area is less than.Each lens are known as the lens near the surface of object side
Object side；Each lens are known as the image side surface of the lens near the surface of image side.
It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory
It indicates there is stated feature, element and/or component when being used in bright book, but does not preclude the presence or addition of one or more
Other feature, component, assembly unit and/or combination thereof.In addition, ought the statement of such as at least one of " ... " appear in institute
When after the list of row feature, entire listed feature is modified, rather than modifies the individual component in list.In addition, when describing this
When the embodiment of application, " one or more embodiments of the application " are indicated using "available".Also, term " illustrative "
It is intended to refer to example or illustration.
Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein all have with
The application one skilled in the art's is generally understood identical meaning.It will also be appreciated that term (such as in everyday words
Term defined in allusion quotation) it should be interpreted as having the meaning consistent with their meanings in the context of the relevant technologies, and
It will not be explained with idealization or excessively formal sense, unless clear herein so limit.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The feature of the application, principle and other aspects are described in detail below.
It may include such as six lens with focal power according to the optical imaging system of the application illustrative embodiments,
That is, the first lens, the second lens, the third lens, the 4th lens, the 5th lens and the 6th lens.This six-element lens is along optical axis
By object side to image side sequential, and can have airspace between two lens of arbitrary neighborhood.
In the exemplary embodiment, the first lens can have negative power, and image side surface can be concave surface；Second lens can
With positive light coke；The third lens, which can have positive light coke, object side, to be convex surface, and image side surface can be convex surface；4th lens
With positive light coke or negative power；5th lens have positive light coke or negative power；6th lens have positive light coke or
Negative power, object side can be convex surface, and image side surface can be concave surface.
The first lens with positive light coke and the second lens are conducive to increase visual angle, while being also beneficial to compression diaphragm
Position angle of incidence of light reduces pupil aberration, improves image quality.The third lens with positive light coke, object side and picture
Side is convex surface, is conducive to reduction system spherical aberration and astigmatism.The 4th lens with focal power and the 5th lens, are conducive to school
Positive aberration improves image quality.The 6th lens with focal power, object side are convex surface, and image side surface is concave surface, advantageous to shorten
System overall length realizes module miniaturization.
Optionally, the object side of the first lens can have at least one point of inflexion.Such face type is disposed with to adjust
The outer light path distribution of axis, increases the light-inletting quantity in the system axle outer visual field unit interval, improves the relative illumination of the outer visual field of axis.
In the exemplary embodiment, conditional HFOV >=70 ° can be met according to the optical imaging system of the application,
In, HFOV is the maximum angle of half field-of view of optical imaging system.More specifically, HFOV can further meet 74.98 °≤HFOV≤
75.01°.Meet conditional HFOV >=70 °, is conducive to large range of imaging and space orientation.
In the exemplary embodiment, according to the optical imaging system of the application can meet 1 < of conditional (| f1 |+| f3
|)/f < 3, wherein f is total effective focal length of optical imaging system, and the effective focal length of the first lens of f1, f3 the third lens have
Imitate focal length.More specifically, f, f1 and f2 can further meet 1.80≤(| f1 |+| f3 |)/f≤2.60, for example, 2.00≤(| f1
|+|f3|)/f≤2.47.Meet 1 < of conditional (| f1 |+| f3 |)/f < 3, be conducive to reasonable distribution system focal power, and advantageous
In the tolerance sensitivities of reduction system while realizing module miniaturization.
In the exemplary embodiment, 0 < R12/R11 < 2 of conditional can be met according to the optical imaging system of the application,
Wherein, R11 is the radius of curvature of the 6th lens object side, and R12 is the radius of curvature of the 6th lens image side surface.More specifically, R11
0.5≤R12/R11≤1.5 can further be met with R12, for example, 0.82≤R12/R11≤1.25.Meet 0 < R12/ of conditional
R11 < 2 are conducive to shortening system overall length, lower the tolerance sensitivities of the 6th lens, improve the production yield of optical system.
In the exemplary embodiment, 0 < DT12/ImgH < of conditional can be met according to the optical imaging system of the application
1, wherein DT12 is effective half bore of maximum of the first lens image side surface, and ImgH is effective on the imaging surface of optical imaging system
The half of pixel region diagonal line length.More specifically, DT12 and ImgH can further meet 0.3≤DT12/ImgH≤0.7, example
Such as, 0.42≤DT12/ImgH≤0.55.Meet 0 < DT12/ImgH < 1 of conditional, is conducive to reduce module in three, space side
Upward size realizes miniaturization.
In the exemplary embodiment, 1 < of conditional can be met according to the optical imaging system of the application | f4/f | < 2,
Wherein, f is total effective focal length of optical imaging system, and f4 is the effective focal length of the 4th lens.More specifically, f and f4 are further
It can meet 1.16≤| f4/f |≤1.82.Meet 1 < of conditional | f4/f | < 2, be conducive to lens injection molding process with
Preferable balance is obtained between correction system aberration the two.
In the exemplary embodiment, 0 < DT31/DT11 < of conditional can be met according to the optical imaging system of the application
1, wherein DT11 is effective half bore of maximum of the first lens object side, and DT31 is the maximum effectively half of the third lens object side
Bore.More specifically, DT11 and DT31 can further meet 0.1≤DT31/DT11≤0.6, for example, 0.24≤DT31/DT11
≤0.41.Meet 0 < DT31/DT11 < 1 of conditional, is conducive to expand visual angle, the outer visual field of adjustment axis enters light, improves imaging
Quality.
In the exemplary embodiment, -1.5 < R6/f < 0 of conditional can be met according to the optical imaging system of the application,
Wherein, f is total effective focal length of optical imaging system, and R6 is the radius of curvature of the third lens image side surface.More specifically, f and R6
- 1.2≤R6/f≤- 0.4 can further be met, for example, -0.93≤R6/f≤- 0.59.Meet -1.5 < R6/f < 0 of conditional,
Be conducive to shortening system overall length, reduce the tolerance sensitivities of the third lens.
In the exemplary embodiment, 0 < T34/ (T45+ of conditional can be met according to the optical imaging system of the application
T56) 0.5 <, wherein T34 is the spacing distance of the third lens and the 4th lens on optical axis, and T45 is the 4th lens and the 5th
Spacing distance of the lens on optical axis, T56 are the spacing distance of the 5th lens and the 6th lens on optical axis.More specifically,
T34, T45 and T56 can further meet 0.04≤T34/ (T45+T56)≤0.28.Meet 0 < T34/ (T45+T56) of conditional
< 0.5 is conducive to shortening system overall length, the outer light path of regulating system axis；The incidence angle for being conducive to reduce off-axis ray, improves imaging
Quality.
In the exemplary embodiment, 0 < CT1/CT6 < 2 of conditional can be met according to the optical imaging system of the application,
Wherein, CT1 is the first lens in the center thickness on optical axis, and CT6 is the 6th lens in the center thickness on optical axis.More specifically
Ground, CT1 and CT6 can further meet 0.5≤CT1/CT6≤1.5, for example, 0.58≤CT1/CT6≤1.47.Meet conditional 0
< CT1/CT6 < 2 are conducive to space on the axis of reasonable distribution system, and in the processing and manufacturing work of the first lens and the 6th lens
Preferable balance is obtained between skill and shortening system overall length the two.
In the exemplary embodiment, 0 < of conditional can be met according to the optical imaging system of the application | f4/f+f5/f |
< 3, wherein f be optical imaging system total effective focal length, f4 be the 4th lens effective focal length, the 5th lens of f5 it is effective
Focal length.More specifically, f, f4 and f5 can further meet 0.07≤| f4/f+f5/f |≤2.97.Meet 0 < of conditional | f4/f+
F5/f | < 3 is conducive to the axial chromatic aberration and chromatic longitudiinal aberration of correction system, improves system imaging quality.
In the exemplary embodiment, conditional TTL/ImgH < 3 can be met according to the optical imaging system of the application,
In, TTL is imaging surface distance on optical axis of the first lens object side to optical imaging system, and ImgH is optical imaging system
Imaging surface on effective pixel area diagonal line length half.More specifically, TTL and ImgH can further meet 2.51≤TTL/
ImgH≤2.86.Meet conditional TTL/ImgH < 3, be advantageously implemented the miniaturization of module so that the imaging system of the application
It is applicable to the installation application scenarios of wider scope.
In the exemplary embodiment, above-mentioned optical imaging system may also include diaphragm, to promote the image quality of camera lens.
For example, diaphragm may be provided between the second lens and the third lens.
Optionally, above-mentioned optical imaging system may also include optical filter for correcting color error ratio and/or for protecting
The protective glass of photosensitive element on imaging surface.
Multi-disc eyeglass, such as described above six can be used according to the optical imaging system of the above embodiment of the application
Piece.By each power of lens of reasonable distribution, face type, each lens center thickness and each lens between axis on spacing
Deng the volume that can effectively reduce camera lens, the machinability for reducing the susceptibility of camera lens and improving camera lens so that optical imagery system
System, which is more advantageous to, to be produced and processed and is applicable to the portable electronic products such as smart mobile phone.Pass through the optical imagery of above-mentioned configuration
System has larger field angle, and can realize the well-corrected to camera lens f- θ distortion so that the camera lens can be in larger sky
Between range carry out more accurate space orientation.
In presently filed embodiment, at least one of minute surface of each lens is aspherical mirror.Non-spherical lens
The characteristics of be：From lens centre to lens perimeter, curvature is consecutive variations.It is constant with having from lens centre to lens perimeter
The spherical lens of curvature is different, and non-spherical lens has more preferably radius of curvature characteristic, and there is improvement to distort aberration and improve picture
The advantages of dissipating aberration.After non-spherical lens, the aberration occurred when imaging can be eliminated as much as possible, so as to improve
Image quality.
However, it will be understood by those of skill in the art that without departing from this application claims technical solution the case where
Under, the lens numbers for constituting optical imaging system can be changed, to obtain each result and advantage described in this specification.Example
Such as, although being described by taking six lens as an example in embodiments, which is not limited to include six
Lens.If desired, the optical imaging system may also include the lens of other quantity.
The specific embodiment for the optical imaging system for being applicable to the above embodiment is further described with reference to the accompanying drawings.
Embodiment 1
Referring to Fig. 1 to Fig. 2 C descriptions according to the optical imaging system of the embodiment of the present application 1.Fig. 1 is shown according to this
Apply for the structural schematic diagram of the optical imaging system of embodiment 1.
As shown in Figure 1, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes：First lens E1, the second lens E2, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th are thoroughly
Mirror E6, optical filter E7 and imaging surface S15.
It is concave surface that first lens E1, which has negative power, object side S1, and image side surface S2 is concave surface, and object side S1 has
The point of inflexion；It is convex surface that second lens E2, which has positive light coke, object side S3, and image side surface S4 is concave surface；The third lens E3 has
Positive light coke, object side S5 are convex surface, and image side surface S6 is convex surface；4th lens E4 has negative power, and object side S7 is
Convex surface, image side surface S8 are concave surface；It is convex surface that 5th lens E5, which has positive light coke, object side S9, and image side surface S10 is convex surface；
It is convex surface that 6th lens E6, which has positive light coke, object side S11, and image side surface S12 is concave surface.Optical filter E7 has object side
S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged on imaging surface S15.
Table 1 show the surface types of each lens of the optical imaging system of embodiment 1, radius of curvature, thickness, material and
Circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 1
As shown in Table 1, the object side of any one lens in the first lens E1 to the 6th lens E6 and image side surface are
It is aspherical.In the present embodiment, the face type x of each non-spherical lens is available but is not limited to following aspherical formula and is defined：
Wherein, x be it is aspherical along optical axis direction when being highly the position of h, away from aspheric vertex of surface apart from rise；C is
Aspherical paraxial curvature, c=1/R (that is, paraxial curvature c is the inverse of 1 mean curvature radius R of upper table)；K be circular cone coefficient (
It has been provided in table 1)；Ai is the correction factor of aspherical i-th-th ranks.The following table 2 give can be used for it is each aspherical in embodiment 1
The high-order coefficient A of minute surface S1-S124、A6、A8、A10、A12、A14And A16。
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 3.8789E-02 | -8.9974E-03 | 1.5495E-03 | -1.6421E-04 | 9.2376E-06 | -2.0170E-07 | 0.0000E+00 |
| S2 | 4.6976E-02 | 1.0959E-01 | -4.3637E-01 | 1.1533E+00 | -1.4740E+00 | 9.2584E-01 | -2.2624E-01 |
| S3 | -1.1370E-01 | 6.9380E-02 | -3.3361E-01 | 5.5326E-01 | -5.4884E-01 | 2.8841E-01 | -6.2976E-02 |
| S4 | 2.9399E-02 | -9.0421E-01 | 9.0230E+00 | -4.8855E+01 | 1.5062E+02 | -2.4120E+02 | 1.5975E+02 |
| S5 | -7.6835E-03 | -1.0128E-01 | 3.0809E-01 | -2.7349E+00 | 1.1572E+01 | -2.2155E+01 | 1.7022E+01 |
| S6 | 3.8661E-01 | -1.7881E+00 | 5.6016E+00 | -1.3182E+01 | 2.0108E+01 | -1.7668E+01 | 6.7829E+00 |
| S7 | -1.6687E-01 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S8 | -2.0608E-02 | -6.9399E-02 | 1.2103E-01 | -1.8013E-01 | 1.8294E-01 | -8.4535E-02 | 1.2868E-02 |
| S9 | 1.6319E-01 | -4.2878E-01 | 6.9555E-01 | -8.0525E-01 | 5.5190E-01 | -1.9189E-01 | 2.6046E-02 |
| S10 | -1.4431E-02 | 2.3364E-02 | 1.5164E-02 | -7.2296E-02 | 6.2116E-02 | -2.4892E-02 | 4.2243E-03 |
| S11 | -2.5733E-01 | 1.4362E-01 | -7.3239E-02 | 2.5107E-02 | -5.4070E-03 | 6.3256E-04 | -2.8342E-05 |
| S12 | -2.7664E-01 | 1.4113E-01 | -6.7653E-02 | 2.1137E-02 | -4.2676E-03 | 5.0415E-04 | -2.7936E-05 |
Table 2
Table 3 give the effective focal length f1 of total effective focal length f of optical imaging system, each lens in embodiment 1 to f6, at
The object side S1 to imaging surface S15 of the half ImgH of effective pixel area diagonal line length, the first lens E1 are in optical axis on image planes S15
On distance TTL and maximum angle of half field-of view HFOV.
| f(mm) | 1.73 | f5(mm) | 3.33 |
| f1(mm) | -1.92 | f6(mm) | 238.75 |
| f2(mm) | 4.37 | ImgH(mm) | 2.26 |
| f3(mm) | 1.57 | TTL(mm) | 6.31 |
| f4(mm) | -2.22 | HFOV(°) | 75.00 |
Table 3
Optical imaging system in embodiment 1 meets：
(| f1 |+| f3 |)/f=2.02, wherein f is total effective focal length of optical imaging system, and f1 the first lens E1's has
Imitate focal length, the effective focal length of f3 the third lens E3；
R12/R11=0.91, wherein R11 is the radius of curvature of the object side S11 of the 6th lens E6, and R12 is the 6th lens
The radius of curvature of the image side surface S12 of E6；
DT12/ImgH=0.53, wherein effective half bore of maximum that DT12 is the image side surface S2 of the first lens E1, ImgH
For the half of effective pixel area diagonal line length on imaging surface S15；
| f4/f |=1.28, wherein f is total effective focal length of optical imaging system, and f4 is effective coke of the 4th lens E4
Away from；
DT31/DT11=0.24, wherein effective half bore of maximum that DT11 is the object side S1 of the first lens E1, DT31
For effective half bore of maximum of the object side S5 of the third lens E3；
R6/f=-0.59, wherein f is total effective focal length of optical imaging system, and R6 is the image side surface S6 of the third lens E3
Radius of curvature；
T34/ (T45+T56)=0.05, wherein T34 is the interval distance of the third lens E3 and the 4th lens E4 on optical axis
From T45 is spacing distances of the 4th lens E4 and the 5th lens E5 on optical axis, and T56 is the 5th lens E5 and the 6th lens E6
Spacing distance on optical axis；
CT1/CT6=1.47, wherein CT1 is the first lens E1 in the center thickness on optical axis, and CT6 is the 6th lens E6
In the center thickness on optical axis；
| f4/f+f5/f |=0.65, wherein f is total effective focal length of optical imaging system, and f4 is having for the 4th lens E4
Imitate focal length, the effective focal length of the 5th lens E5 of f5；
TTL/ImgH=2.79, wherein TTL be the first lens E1 object side S1 to imaging surface S15 on optical axis away from
From ImgH is the half of effective pixel area diagonal line length on imaging surface S15.
Fig. 2A shows chromatic curve on the axis of the optical imaging system of embodiment 1, indicates the light warp of different wave length
Deviateed by the converging focal point after system.Fig. 2 B show the astigmatism curve of the optical imaging system of embodiment 1, indicate meridian picture
Face is bent and sagittal image surface bending.Fig. 2 C show the ratio chromatism, curve of the optical imaging system of embodiment 1, indicate light
Via the deviation of the different image heights after system on imaging surface.A to Fig. 2 C is it is found that optics given by embodiment 1 according to fig. 2
Imaging system can realize good image quality.
Embodiment 2
Referring to Fig. 3 to Fig. 4 C descriptions according to the optical imaging system of the embodiment of the present application 2.In the present embodiment and following
In embodiment, for brevity, by clipped description similar to Example 1.Fig. 3 is shown according to the embodiment of the present application 2
Optical imaging system structural schematic diagram.
As shown in figure 3, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes：First lens E1, the second lens E2, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th are thoroughly
Mirror E6, optical filter E7 and imaging surface S15.
It is concave surface that first lens E1, which has negative power, object side S1, and image side surface S2 is concave surface, and object side S1 has
The point of inflexion；It is convex surface that second lens E2, which has positive light coke, object side S3, and image side surface S4 is concave surface；The third lens E3 has
Positive light coke, object side S5 are convex surface, and image side surface S6 is convex surface；4th lens E4 has positive light coke, and object side S7 is
Convex surface, image side surface S8 are convex surface；It is concave surface that 5th lens E5, which has negative power, object side S9, and image side surface S10 is concave surface；
It is convex surface that 6th lens E6, which has negative power, object side S11, and image side surface S12 is concave surface.Optical filter E7 has object side
S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged on imaging surface S15.
Table 4 show the surface types of each lens of the optical imaging system of embodiment 2, radius of curvature, thickness, material and
Circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 4
As shown in Table 4, in example 2, the object side of any one lens in the first lens E1 to the 6th lens E6
It is aspherical with image side surface.Table 5 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 2, wherein each non-
Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 2.7140E-02 | -5.5284E-03 | 8.0324E-04 | -6.4223E-05 | 2.2828E-06 | 0.0000E+00 | 0.0000E+00 |
| S2 | 2.0936E-01 | -1.9048E-01 | 2.7130E-01 | -7.6400E-02 | -1.8051E-01 | 1.8994E-01 | -5.5712E-02 |
| S3 | -7.3667E-02 | 7.8211E-03 | -9.4895E-02 | 1.6166E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 3.4394E-01 | -3.0256E-01 | 4.4224E-01 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S5 | 3.3423E-03 | 6.4347E-01 | -5.3353E+00 | 2.5095E+01 | -6.4129E+01 | 8.4331E+01 | -4.4490E+01 |
| S6 | -3.8660E-02 | -1.8084E-02 | -3.1362E-02 | 6.3575E-01 | -2.2774E+00 | 3.1820E+00 | -1.4816E+00 |
| S7 | -2.6658E-02 | -4.9377E-05 | -3.2641E-02 | -8.0118E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S8 | -2.6949E-01 | 2.9369E-01 | -1.8004E-01 | 5.6373E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S9 | -1.8687E-01 | -6.3499E-02 | 9.6446E-02 | 6.5017E-03 | -1.4005E-02 | 0.0000E+00 | 0.0000E+00 |
| S10 | 4.9032E-02 | -1.2367E-01 | 8.6827E-02 | -2.3717E-02 | 1.5391E-03 | 2.0952E-04 | -9.7410E-06 |
| S11 | -2.4561E-01 | 2.1642E-01 | -1.6000E-01 | 7.0659E-02 | -1.7283E-02 | 2.1886E-03 | -1.1208E-04 |
| S12 | -2.7674E-01 | 1.8167E-01 | -1.0062E-01 | 3.5115E-02 | -7.5992E-03 | 9.1498E-04 | -4.4634E-05 |
Table 5
Table 6 give the effective focal length f1 of total effective focal length f of optical imaging system, each lens in embodiment 2 to f6, at
The object side S1 to imaging surface S15 of the half ImgH of effective pixel area diagonal line length, the first lens E1 are in optical axis on image planes S15
On distance TTL and maximum angle of half field-of view HFOV.
| f(mm) | 1.74 | f5(mm) | -3.25 |
| f1(mm) | -1.98 | f6(mm) | -82.54 |
| f2(mm) | 7.19 | ImgH(mm) | 2.26 |
| f3(mm) | 2.30 | TTL(mm) | 6.31 |
| f4(mm) | 2.64 | HFOV(°) | 74.98 |
Table 6
Fig. 4 A show chromatic curve on the axis of the optical imaging system of embodiment 2, indicate the light warp of different wave length
Deviateed by the converging focal point after system.Fig. 4 B show the astigmatism curve of the optical imaging system of embodiment 2, indicate meridian picture
Face is bent and sagittal image surface bending.Fig. 4 C show the ratio chromatism, curve of the optical imaging system of embodiment 2, indicate light
Via the deviation of the different image heights after system on imaging surface.According to Fig. 4 A to Fig. 4 C it is found that optics given by embodiment 2
Imaging system can realize good image quality.
Embodiment 3
The optical imaging system according to the embodiment of the present application 3 is described referring to Fig. 5 to Fig. 6 C.Fig. 5 shows basis
The structural schematic diagram of the optical imaging system of the embodiment of the present application 3.
As shown in figure 5, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes：First lens E1, the second lens E2, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th are thoroughly
Mirror E6, optical filter E7 and imaging surface S15.
It is concave surface that first lens E1, which has negative power, object side S1, and image side surface S2 is concave surface, and object side S1 has
The point of inflexion；It is convex surface that second lens E2, which has positive light coke, object side S3, and image side surface S4 is concave surface；The third lens E3 has
Positive light coke, object side S5 are convex surface, and image side surface S6 is convex surface；4th lens E4 has negative power, and object side S7 is
Convex surface, image side surface S8 are concave surface；It is convex surface that 5th lens E5, which has positive light coke, object side S9, and image side surface S10 is concave surface；
It is convex surface that 6th lens E6, which has positive light coke, object side S11, and image side surface S12 is concave surface.Optical filter E7 has object side
S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged on imaging surface S15.
Table 7 show the surface types of each lens of the optical imaging system of embodiment 3, radius of curvature, thickness, material and
Circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 7
As shown in Table 7, in embodiment 3, the object side of any one lens in the first lens E1 to the 6th lens E6
It is aspherical with image side surface.Table 8 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 3, wherein each non-
Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -1.8086E-03 | 1.7893E-02 | -9.2208E-03 | 2.5388E-03 | -4.0577E-04 | 3.5566E-05 | -1.3152E-06 |
| S2 | 3.1268E-02 | -7.3563E-03 | 7.2753E-02 | -1.4060E-02 | 2.7108E-22 | -2.3633E-24 | -1.6856E-27 |
| S3 | -1.3850E-01 | -2.1378E-02 | -2.0809E-02 | 2.4155E-02 | 2.3883E-21 | 4.3284E-24 | -1.6856E-27 |
| S4 | -1.8729E-01 | 9.1866E-02 | -1.1819E-02 | 3.5080E-02 | -7.0044E-22 | -2.0055E-25 | -1.6856E-27 |
| S5 | -2.4827E-02 | -1.0057E-02 | 1.7833E-01 | -2.7551E-01 | 5.7952E-22 | -2.1355E-25 | -1.6856E-27 |
| S6 | -3.2898E-03 | -1.3290E-01 | 2.1578E-01 | -1.7626E-01 | -3.0787E-22 | -2.1355E-25 | -1.6856E-27 |
| S7 | -3.6830E-01 | 2.5004E-02 | -7.8481E-02 | -3.5800E-02 | -4.4396E-22 | -2.1355E-25 | -1.6856E-27 |
| S8 | -9.1318E-02 | 5.1207E-03 | 1.6487E-02 | 2.0170E-03 | -1.0875E-21 | -9.2854E-25 | -1.6856E-27 |
| S9 | 2.9996E-02 | -2.7334E-02 | 1.1744E-02 | -8.8359E-03 | -5.6061E-22 | -1.4932E-24 | -1.6856E-27 |
| S10 | -4.2558E-02 | 4.6319E-02 | -3.5690E-02 | 1.3650E-02 | -6.0896E-03 | 9.8361E-04 | -3.8704E-05 |
| S11 | -1.0984E-01 | 2.6530E-02 | -4.7794E-03 | -3.2386E-04 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S12 | -1.0928E-01 | 2.0675E-02 | -2.7183E-03 | -3.1839E-04 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
Table 8
Table 9 give the effective focal length f1 of total effective focal length f of optical imaging system, each lens in embodiment 3 to f6, at
The object side S1 to imaging surface S15 of the half ImgH of effective pixel area diagonal line length, the first lens E1 are in optical axis on image planes S15
On distance TTL and maximum angle of half field-of view HFOV.
| f(mm) | 1.69 | f5(mm) | 3.96 |
| f1(mm) | -1.96 | f6(mm) | 43.29 |
| f2(mm) | 9.70 | ImgH(mm) | 2.21 |
| f3(mm) | 1.63 | TTL(mm) | 6.32 |
| f4(mm) | -2.40 | HFOV(°) | 75.00 |
Table 9
Fig. 6 A show chromatic curve on the axis of the optical imaging system of embodiment 3, indicate the light warp of different wave length
Deviateed by the converging focal point after system.Fig. 6 B show the astigmatism curve of the optical imaging system of embodiment 3, indicate meridian picture
Face is bent and sagittal image surface bending.Fig. 6 C show the ratio chromatism, curve of the optical imaging system of embodiment 3, indicate light
Via the deviation of the different image heights after system on imaging surface.According to Fig. 6 A to Fig. 6 C it is found that optics given by embodiment 3
Imaging system can realize good image quality.
Embodiment 4
The optical imaging system according to the embodiment of the present application 4 is described referring to Fig. 7 to Fig. 8 C.Fig. 7 shows basis
The structural schematic diagram of the optical imaging system of the embodiment of the present application 4.
As shown in fig. 7, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes：First lens E1, the second lens E2, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th are thoroughly
Mirror E6, optical filter E7 and imaging surface S15.
It is convex surface that first lens E1, which has negative power, object side S1, and image side surface S2 is concave surface；Second lens E2 has
Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface；The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface；It is convex surface that 4th lens E4, which has negative power, object side S7, and image side surface S8 is concave surface；The
It is convex surface that five lens E5, which have positive light coke, object side S9, and image side surface S10 is concave surface；6th lens E6 has positive light coke,
Its object side S11 is convex surface, and image side surface S12 is concave surface.Optical filter E7 has object side S13 and image side surface S14.From object
Light sequentially passes through each surface S1 to S14 and is ultimately imaged on imaging surface S15.
Table 10 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 4
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 10
As shown in Table 10, in example 4, the object side of any one lens in the first lens E1 to the 6th lens E6
It is aspherical with image side surface.Table 11 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 4, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 11
Table 12 give total effective focal length f of optical imaging system in embodiment 4, each lens effective focal length f1 to f6,
The object side S1 to imaging surface S15 of the half ImgH of effective pixel area diagonal line length, the first lens E1 are in light on imaging surface S15
Distance TTL on axis and maximum angle of half field-of view HFOV.
| f(mm) | 1.73 | f5(mm) | 7.31 |
| f1(mm) | -2.10 | f6(mm) | 17.62 |
| f2(mm) | 9.96 | ImgH(mm) | 2.25 |
| f3(mm) | 1.48 | TTL(mm) | 6.32 |
| f4(mm) | -2.19 | HFOV(°) | 75.00 |
Table 12
Fig. 8 A show chromatic curve on the axis of the optical imaging system of embodiment 4, indicate the light warp of different wave length
Deviateed by the converging focal point after system.Fig. 8 B show the astigmatism curve of the optical imaging system of embodiment 4, indicate meridian picture
Face is bent and sagittal image surface bending.Fig. 8 C show the ratio chromatism, curve of the optical imaging system of embodiment 4, indicate light
Via the deviation of the different image heights after system on imaging surface.According to Fig. 8 A to Fig. 8 C it is found that optics given by embodiment 4
Imaging system can realize good image quality.
Embodiment 5
The optical imaging system according to the embodiment of the present application 5 is described referring to Fig. 9 to Figure 10 C.Fig. 9 shows basis
The structural schematic diagram of the optical imaging system of the embodiment of the present application 5.
As shown in figure 9, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes：First lens E1, the second lens E2, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th are thoroughly
Mirror E6, optical filter E7 and imaging surface S15.
It is convex surface that first lens E1, which has negative power, object side S1, and image side surface S2 is concave surface；Second lens E2 has
Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface；The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface；It is convex surface that 4th lens E4, which has negative power, object side S7, and image side surface S8 is concave surface；The
It is convex surface that five lens E5, which have positive light coke, object side S9, and image side surface S10 is concave surface；6th lens E6 has positive light coke,
Its object side S11 is convex surface, and image side surface S12 is concave surface.Optical filter E7 has object side S13 and image side surface S14.From object
Light sequentially passes through each surface S1 to S14 and is ultimately imaged on imaging surface S15.
Table 13 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 5
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 13
As shown in Table 13, in embodiment 5, the object side of any one lens in the first lens E1 to the 6th lens E6
It is aspherical with image side surface.Table 14 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 5, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 14
Table 15 give total effective focal length f of optical imaging system in embodiment 5, each lens effective focal length f1 to f6,
The object side S1 to imaging surface S15 of the half ImgH of effective pixel area diagonal line length, the first lens E1 are in light on imaging surface S15
Distance TTL on axis and maximum angle of half field-of view HFOV.
| f(mm) | 1.73 | f5(mm) | 6.69 |
| f1(mm) | -2.16 | f6(mm) | 20.51 |
| f2(mm) | 13.08 | ImgH(mm) | 2.52 |
| f3(mm) | 1.45 | TTL(mm) | 6.32 |
| f4(mm) | -2.16 | HFOV(°) | 75.00 |
Table 15
Figure 10 A show chromatic curve on the axis of the optical imaging system of embodiment 5, indicate the light warp of different wave length
Deviateed by the converging focal point after system.Figure 10 B show the astigmatism curve of the optical imaging system of embodiment 5, indicate meridian
Curvature of the image and sagittal image surface bending.Figure 10 C show the ratio chromatism, curve of the optical imaging system of embodiment 5, indicate
Light via the different image heights after system on imaging surface deviation.According to Figure 10 A to Figure 10 C it is found that given by embodiment 5
Optical imaging system can realize good image quality.
Embodiment 6
The optical imaging system according to the embodiment of the present application 6 is described referring to Figure 11 to Figure 12 C.Figure 11 shows root
According to the structural schematic diagram of the optical imaging system of the embodiment of the present application 6.
As shown in figure 11, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes：First lens E1, the second lens E2, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th are thoroughly
Mirror E6, optical filter E7 and imaging surface S15.
It is convex surface that first lens E1, which has negative power, object side S1, and image side surface S2 is concave surface, and object side S1 has
The point of inflexion；It is concave surface that second lens E2, which has positive light coke, object side S3, and image side surface S4 is convex surface；The third lens E3 has
Positive light coke, object side S5 are convex surface, and image side surface S6 is convex surface；4th lens E4 has negative power, and object side S7 is
Concave surface, image side surface S8 are concave surface；It is convex surface that 5th lens E5, which has positive light coke, object side S9, and image side surface S10 is convex surface；
It is convex surface that 6th lens E6, which has positive light coke, object side S11, and image side surface S12 is concave surface.Optical filter E7 has object side
S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged on imaging surface S15.
Table 16 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 6
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 16
As shown in Table 16, in embodiment 6, the object side of any one lens in the first lens E1 to the 6th lens E6
It is aspherical with image side surface.Table 17 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 6, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -1.3728E-01 | 4.7018E-02 | -9.4654E-03 | 8.3490E-04 | 1.6495E-05 | -5.0868E-06 | 0.0000E+00 |
| S2 | -1.8970E-01 | 5.5253E-01 | -1.9840E+00 | 5.1765E+00 | -7.6822E+00 | 6.1765E+00 | -2.0557E+00 |
| S3 | -5.7572E-02 | 1.5656E-02 | -1.9829E-01 | 5.6379E-01 | -9.7488E-01 | 8.3914E-01 | -2.6193E-01 |
| S4 | -3.6235E-01 | 1.3603E+00 | -4.3505E+00 | 9.5178E+00 | -1.2777E+01 | 9.4129E+00 | -2.7486E+00 |
| S5 | -2.6636E-01 | 1.3794E+00 | -4.2898E+00 | 8.7164E+00 | -1.1001E+01 | 7.6177E+00 | -2.1779E+00 |
| S6 | -1.0422E-01 | 5.0081E-01 | -1.2302E+00 | 1.8786E+00 | -1.5768E+00 | 5.2483E-01 | 3.3229E-02 |
| S7 | -5.1439E-01 | 1.2368E+00 | -2.7983E+00 | 4.9128E+00 | -5.8119E+00 | 3.9294E+00 | -1.0911E+00 |
| S8 | -1.6044E-01 | 5.2984E-01 | -9.4259E-01 | 1.1834E+00 | -9.5166E-01 | 4.2046E-01 | -7.5759E-02 |
| S9 | -2.7765E-02 | 1.1489E-01 | -3.0638E-01 | 5.3037E-01 | -5.6819E-01 | 3.5035E-01 | -9.5849E-02 |
| S10 | -1.3211E-01 | 1.6198E-01 | -1.2038E-01 | 3.9230E-02 | 2.4422E-02 | -1.8644E-02 | 3.7126E-03 |
| S11 | -1.7979E-01 | 5.7842E-02 | -5.9300E-02 | 3.9939E-02 | -1.5914E-02 | 3.3262E-03 | -2.7930E-04 |
| S12 | -1.0322E-01 | -2.4088E-02 | 1.7694E-02 | -6.0595E-03 | 9.5983E-04 | -6.5395E-05 | -1.2824E-06 |
Table 17
Table 18 give total effective focal length f of optical imaging system in embodiment 6, each lens effective focal length f1 to f6,
The object side S1 to imaging surface S15 of the half ImgH of effective pixel area diagonal line length, the first lens E1 are in light on imaging surface S15
Distance TTL on axis and maximum angle of half field-of view HFOV.
| f(mm) | 1.73 | f5(mm) | 4.46 |
| f1(mm) | -2.48 | f6(mm) | 11.51 |
| f2(mm) | 12.16 | ImgH(mm) | 2.25 |
| f3(mm) | 1.54 | TTL(mm) | 6.32 |
| f4(mm) | -2.01 | HFOV(°) | 75.00 |
Table 18
Figure 12 A show chromatic curve on the axis of the optical imaging system of embodiment 6, indicate the light warp of different wave length
Deviateed by the converging focal point after system.Figure 12 B show the astigmatism curve of the optical imaging system of embodiment 6, indicate meridian
Curvature of the image and sagittal image surface bending.Figure 12 C show the ratio chromatism, curve of the optical imaging system of embodiment 6, indicate
Light via the different image heights after system on imaging surface deviation.According to figure 12 A to figure 12 C it is found that given by embodiment 6
Optical imaging system can realize good image quality.
Embodiment 7
The optical imaging system according to the embodiment of the present application 7 is described referring to Figure 13 to Figure 14 C.Figure 13 shows root
According to the structural schematic diagram of the optical imaging system of the embodiment of the present application 7.
As shown in figure 13, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes：First lens E1, the second lens E2, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th are thoroughly
Mirror E6, optical filter E7 and imaging surface S15.
It is concave surface that first lens E1, which has negative power, object side S1, and image side surface S2 is concave surface, and object side S1 has
The point of inflexion；It is convex surface that second lens E2, which has positive light coke, object side S3, and image side surface S4 is concave surface；The third lens E3 has
Positive light coke, object side S5 are convex surface, and image side surface S6 is convex surface；4th lens E4 has negative power, and object side S7 is
Convex surface, image side surface S8 are concave surface；It is convex surface that 5th lens E5, which has positive light coke, object side S9, and image side surface S10 is concave surface；
It is convex surface that 6th lens E6, which has positive light coke, object side S11, and image side surface S12 is concave surface.Optical filter E7 has object side
S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged on imaging surface S15.
Table 19 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 7
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 19
As shown in Table 19, in embodiment 7, the object side of any one lens in the first lens E1 to the 6th lens E6
It is aspherical with image side surface.Table 20 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 7, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 6.6242E-02 | -3.3370E-02 | 1.2856E-02 | -3.3074E-03 | 5.2777E-04 | -4.6899E-05 | 1.7988E-06 |
| S2 | 1.7289E-01 | 2.6002E-01 | -1.2571E+00 | 3.9944E+00 | -6.7003E+00 | 5.8453E+00 | -2.0395E+00 |
| S3 | -1.2937E-01 | -1.0181E-01 | 1.2353E-01 | -2.1250E-01 | 5.8529E-02 | 5.1753E-02 | 0.0000E+00 |
| S4 | -2.0000E-01 | -9.1378E-01 | 7.0520E+00 | -2.8355E+01 | 6.6393E+01 | -8.2367E+01 | 4.2439E+01 |
| S5 | -6.2672E-02 | -1.7569E-01 | 7.0117E-01 | -1.9445E+00 | 3.5736E+00 | -3.3556E+00 | 1.3508E+00 |
| S6 | 3.2901E-01 | -1.7365E+00 | 5.8770E+00 | -1.2898E+01 | 1.7097E+01 | -1.2381E+01 | 3.7937E+00 |
| S7 | -3.2208E-01 | -8.3954E-01 | 3.4065E+00 | -6.9658E+00 | 8.3531E+00 | -5.2207E+00 | 1.1965E+00 |
| S8 | -7.1938E-03 | -4.8840E-01 | 1.2445E+00 | -1.7342E+00 | 1.4600E+00 | -6.8792E-01 | 1.3788E-01 |
| S9 | 9.4751E-02 | -1.0398E-02 | -2.9357E-01 | 5.5355E-01 | -5.2074E-01 | 2.3985E-01 | -4.1725E-02 |
| S10 | -1.6615E-01 | 2.3614E-01 | -2.5416E-01 | 2.0895E-01 | -1.2379E-01 | 3.8217E-02 | -4.0392E-03 |
| S11 | -2.0641E-01 | 1.2359E-01 | -1.1206E-01 | 6.8511E-02 | -2.5015E-02 | 4.8300E-03 | -3.8077E-04 |
| S12 | -9.6668E-02 | 1.4769E-02 | -1.2061E-02 | 7.3902E-03 | -2.3516E-03 | 3.5551E-04 | -2.0703E-05 |
Table 20
Table 21 give total effective focal length f of optical imaging system in embodiment 7, each lens effective focal length f1 to f6,
The object side S1 to imaging surface S15 of the half ImgH of effective pixel area diagonal line length, the first lens E1 are in light on imaging surface S15
Distance TTL on axis and maximum angle of half field-of view HFOV.
| f(mm) | 1.73 | f5(mm) | 6.90 |
| f1(mm) | -1.97 | f6(mm) | 7.81 |
| f2(mm) | 12.48 | ImgH(mm) | 2.26 |
| f3(mm) | 1.48 | TTL(mm) | 6.32 |
| f4(mm) | -2.63 | HFOV(°) | 75.00 |
Table 21
Figure 14 A show chromatic curve on the axis of the optical imaging system of embodiment 7, indicate the light warp of different wave length
Deviateed by the converging focal point after system.Figure 14 B show the astigmatism curve of the optical imaging system of embodiment 7, indicate meridian
Curvature of the image and sagittal image surface bending.Figure 14 C show the ratio chromatism, curve of the optical imaging system of embodiment 7, indicate
Light via the different image heights after system on imaging surface deviation.According to Figure 14 A to Figure 14 C it is found that given by embodiment 7
Optical imaging system can realize good image quality.
Embodiment 8
The optical imaging system according to the embodiment of the present application 8 is described referring to Figure 15 to Figure 16 C.Figure 15 shows root
According to the structural schematic diagram of the optical imaging system of the embodiment of the present application 8.
As shown in figure 15, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes：First lens E1, the second lens E2, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th are thoroughly
Mirror E6, optical filter E7 and imaging surface S15.
It is concave surface that first lens E1, which has negative power, object side S1, and image side surface S2 is concave surface, and object side S1 has
The point of inflexion；It is convex surface that second lens E2, which has positive light coke, object side S3, and image side surface S4 is concave surface；The third lens E3 has
Positive light coke, object side S5 are convex surface, and image side surface S6 is convex surface；4th lens E4 has positive light coke, and object side S7 is
Convex surface, image side surface S8 are convex surface；It is concave surface that 5th lens E5, which has negative power, object side S9, and image side surface S10 is concave surface；
It is convex surface that 6th lens E6, which has negative power, object side S11, and image side surface S12 is concave surface.Optical filter E7 has object side
S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged on imaging surface S15.
Table 22 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 8
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 22
As shown in Table 22, in embodiment 8, the object side of any one lens in the first lens E1 to the 6th lens E6
It is aspherical with image side surface.Table 23 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 8, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 5.8961E-02 | -1.8038E-02 | 3.7812E-03 | -4.9584E-04 | 3.6872E-05 | -1.1425E-06 | 0.0000E+00 |
| S2 | 5.2644E-01 | -1.0272E+00 | 1.8706E+00 | -2.2146E+00 | 1.5940E+00 | -6.5675E-01 | 1.1906E-01 |
| S3 | -1.3428E-01 | -4.2384E-02 | 5.3265E-02 | -8.1174E-02 | -1.8599E-01 | 3.0694E-01 | -1.1862E-01 |
| S4 | 1.0460E-01 | -3.0703E-01 | 3.0985E+00 | -1.3344E+01 | 3.4867E+01 | -4.8807E+01 | 3.0534E+01 |
| S5 | 2.5924E-02 | 1.9358E-02 | -1.5000E-01 | 3.7336E-02 | 1.3446E+00 | -2.9428E+00 | 1.9446E+00 |
| S6 | 5.1529E-02 | -3.0792E-01 | 1.1797E+00 | -3.1555E+00 | 4.7836E+00 | -3.7345E+00 | 1.1838E+00 |
| S7 | 2.3038E-03 | -4.2619E-02 | -6.3385E-04 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S8 | -1.1118E-01 | -9.4162E-01 | 2.2884E+00 | -2.5754E+00 | 1.5739E+00 | -4.9919E-01 | 6.6423E-02 |
| S9 | -6.8605E-02 | -7.2182E-01 | 1.3504E+00 | -1.0726E+00 | 3.1503E-01 | 5.6041E-02 | -3.6522E-02 |
| S10 | 1.2897E-01 | -1.8518E-01 | 1.3315E-01 | -4.9258E-02 | 6.4188E-03 | 1.0820E-03 | -3.0823E-04 |
| S11 | -2.1262E-01 | 1.7599E-01 | -1.2950E-01 | 6.0263E-02 | -1.6146E-02 | 2.3123E-03 | -1.3896E-04 |
| S12 | -2.6573E-01 | 1.7275E-01 | -9.8466E-02 | 3.6102E-02 | -8.4737E-03 | 1.1725E-03 | -7.2671E-05 |
Table 23
Table 24 give total effective focal length f of optical imaging system in embodiment 8, each lens effective focal length f1 to f6,
The object side S1 to imaging surface S15 of the half ImgH of effective pixel area diagonal line length, the first lens E1 are in light on imaging surface S15
Distance TTL, maximum angle of half field-of view HFOV and F-number Fno on axis.
| f(mm) | 1.73 | f5(mm) | -2.89 |
| f1(mm) | -1.85 | f6(mm) | -43.05 |
| f2(mm) | 7.10 | ImgH(mm) | 2.26 |
| f3(mm) | 1.86 | TTL(mm) | 6.31 |
| f4(mm) | 3.01 | HFOV(°) | 75.00 |
Table 24
Figure 16 A show chromatic curve on the axis of the optical imaging system of embodiment 8, indicate the light warp of different wave length
Deviateed by the converging focal point after system.Figure 16 B show the astigmatism curve of the optical imaging system of embodiment 8, indicate meridian
Curvature of the image and sagittal image surface bending.Figure 16 C show the ratio chromatism, curve of the optical imaging system of embodiment 8, indicate
Light via the different image heights after system on imaging surface deviation.According to Figure 16 A to Figure 16 C it is found that given by embodiment 8
Optical imaging system can realize good image quality.
Embodiment 9
The optical imaging system according to the embodiment of the present application 9 is described referring to Figure 17 to Figure 18 C.Figure 17 shows roots
According to the structural schematic diagram of the optical imaging system of the embodiment of the present application 9.
As shown in figure 17, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes：First lens E1, the second lens E2, diaphragm STO, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th are thoroughly
Mirror E6, optical filter E7 and imaging surface S15.
It is concave surface that first lens E1, which has negative power, object side S1, and image side surface S2 is concave surface, and object side S1 has
The point of inflexion；It is convex surface that second lens E2, which has positive light coke, object side S3, and image side surface S4 is concave surface；The third lens E3 has
Positive light coke, object side S5 are convex surface, and image side surface S6 is convex surface；4th lens E4 has positive light coke, and object side S7 is
Convex surface, image side surface S8 are convex surface；It is concave surface that 5th lens E5, which has negative power, object side S9, and image side surface S10 is concave surface；
It is convex surface that 6th lens E6, which has negative power, object side S11, and image side surface S12 is concave surface.Optical filter E7 has object side
S13 and image side surface S14.Light from object sequentially passes through each surface S1 to S14 and is ultimately imaged on imaging surface S15.
Table 25 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 9
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 25
As shown in Table 25, in embodiment 9, the object side of any one lens in the first lens E1 to the 6th lens E6
It is aspherical with image side surface.Table 26 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 9, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 2.6849E-02 | -5.4891E-03 | 8.1234E-04 | -6.6414E-05 | 2.4615E-06 | 0.0000E+00 | 0.0000E+00 |
| S2 | 1.3567E-01 | 9.3214E-02 | -3.2542E-01 | 6.8283E-01 | -7.5368E-01 | 4.2346E-01 | -9.5003E-02 |
| S3 | -7.2453E-02 | -9.9936E-03 | -8.1430E-02 | 1.5013E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 2.7698E-01 | -2.4114E-01 | 3.1972E-01 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S5 | 6.4569E-03 | 6.1327E-01 | -5.8173E+00 | 3.0501E+01 | -8.5761E+01 | 1.2308E+02 | -7.0595E+01 |
| S6 | -1.1085E-02 | -3.5445E-01 | 1.9957E+00 | -5.7296E+00 | 8.8371E+00 | -6.9920E+00 | 2.3000E+00 |
| S7 | -4.0058E-02 | 2.2695E-02 | -4.0907E-02 | -7.8269E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S8 | -2.2317E-01 | 2.1373E-01 | -1.0788E-01 | 3.0731E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S9 | -1.2926E-01 | -7.6342E-02 | 8.5970E-02 | 5.0823E-03 | -1.0631E-02 | 0.0000E+00 | 0.0000E+00 |
| S10 | 4.7440E-02 | -1.2329E-01 | 8.6812E-02 | -2.3252E-02 | 1.4935E-03 | 4.3597E-05 | 3.5472E-05 |
| S11 | -2.5481E-01 | 2.2279E-01 | -1.7203E-01 | 8.1064E-02 | -2.1211E-02 | 2.8729E-03 | -1.5760E-04 |
| S12 | -2.6295E-01 | 1.6613E-01 | -9.0656E-02 | 3.0858E-02 | -6.4005E-03 | 7.3225E-04 | -3.3813E-05 |
Table 26
Table 27 give total effective focal length f of optical imaging system in embodiment 9, each lens effective focal length f1 to f6,
The object side S1 to imaging surface S15 of the half ImgH of effective pixel area diagonal line length, the first lens E1 are in light on imaging surface S15
Distance TTL, maximum angle of half field-of view HFOV and F-number Fno on axis.
Table 27
Figure 18 A show chromatic curve on the axis of the optical imaging system of embodiment 9, indicate the light warp of different wave length
Deviateed by the converging focal point after system.Figure 18 B show the astigmatism curve of the optical imaging system of embodiment 9, indicate meridian
Curvature of the image and sagittal image surface bending.Figure 18 C show the ratio chromatism, curve of the optical imaging system of embodiment 9, indicate
Light via the different image heights after system on imaging surface deviation.According to Figure 18 A to Figure 18 C it is found that given by embodiment 9
Optical imaging system can realize good image quality.
To sum up, embodiment 1 to embodiment 9 meets relationship shown in table 28 respectively.
| Conditional embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| (|f1|+|f3|)/f | 2.02 | 2.46 | 2.12 | 2.08 | 2.10 | 2.33 | 2.00 | 2.15 | 2.47 |
| R12/R11 | 0.91 | 0.85 | 1.02 | 1.06 | 1.04 | 1.11 | 1.25 | 0.82 | 0.87 |
| DT12/ImgH | 0.53 | 0.52 | 0.52 | 0.47 | 0.42 | 0.45 | 0.44 | 0.55 | 0.52 |
| |f4/f| | 1.28 | 1.52 | 1.42 | 1.27 | 1.25 | 1.16 | 1.52 | 1.74 | 1.82 |
| DT31/DT11 | 0.24 | 0.25 | 0.32 | 0.34 | 0.34 | 0.41 | 0.35 | 0.25 | 0.24 |
| R6/f | -0.59 | -0.90 | -0.93 | -0.77 | -0.78 | -0.85 | -0.68 | -0.69 | -0.92 |
| T34/(T45+T56) | 0.05 | 0.21 | 0.06 | 0.05 | 0.04 | 0.06 | 0.05 | 0.09 | 0.28 |
| CT1/CT6 | 1.47 | 0.91 | 0.62 | 0.58 | 0.63 | 1.02 | 0.68 | 0.81 | 0.87 |
| |f4/f+f5/f| | 0.65 | 0.35 | 0.92 | 2.97 | 2.63 | 1.42 | 2.48 | 0.07 | 0.56 |
| TTL/ImgH | 2.79 | 2.79 | 2.86 | 2.81 | 2.51 | 2.80 | 2.80 | 2.80 | 2.77 |
| HFOV(°) | 75.00 | 74.98 | 75.00 | 75.00 | 75.00 | 75.00 | 75.00 | 75.00 | 75.01 |
Table 28
The application also provides a kind of imaging device, and electronics photosensitive element can be photosensitive coupling element (CCD) or complementation
Property matal-oxide semiconductor element (CMOS).Imaging device can be the independent imaging equipment of such as digital camera, can also be
The image-forming module being integrated on the mobile electronic devices such as mobile phone.The imaging device is equipped with optical imagery system described above
System.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical solutions of arbitrary combination and formation.Such as features described above has similar work(with (but not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (13)
1. optical imaging system includes sequentially by object side to image side along optical axis：First lens, the second lens, the third lens,
Four lens, the 5th lens and the 6th lens, which is characterized in that
It is concave surface that first lens, which have negative power, image side surface,；
Second lens have positive light coke；
The third lens have positive light coke, and object side and image side surface are convex surface；
4th lens have focal power；
5th lens have focal power；
It is convex surface that 6th lens, which have focal power, object side, and image side surface is concave surface；
The effective half bore DT12 of maximum of the image side surface of first lens on the imaging surface of the optical imaging system effectively
The half ImgH of pixel region diagonal line length meets 0 < DT12/ImgH < 1.
2. optical imaging system according to claim 1, which is characterized in that the effective focal length f1 of first lens, institute
State the effective focal length f3 of the third lens and the optical imaging system total effective focal length f meet 1 < (| f1 |+| f3 |)/f < 3.
3. optical imaging system according to claim 1, which is characterized in that the effective focal length f4 of the 4th lens and institute
The total effective focal length f for stating optical imaging system meets 1 < | f4/f | < 2.
4. optical imaging system according to claim 3, which is characterized in that the effective focal length f4 of the 4th lens, institute
Total effective focal length f of the effective focal length f5 and the optical imaging system that state the 5th lens meet 0 < | f4/f+f5/f | < 3.
5. optical imaging system according to claim 1, which is characterized in that the maximum of the object side of first lens has
It imitates half bore DT11 and the effective half bore DT31 of maximum of the object side of the third lens meets 0 < DT31/DT11 < 1.
6. optical imaging system according to claim 1, which is characterized in that first lens are on the optical axis
Heart thickness CT1 meets 0 < CT1/CT6 < 2 with the 6th lens in the center thickness CT6 on the optical axis.
7. optical imaging system according to claim 1, which is characterized in that the third lens and the 4th lens exist
Spacing distance T34, the spacing distance T45 of the 4th lens and the 5th lens on the optical axis on the optical axis with
The spacing distance T56 of 5th lens and the 6th lens on the optical axis meets 0 < T34/ (T45+T56) < 0.5.
8. optical imaging system according to claim 1, which is characterized in that the curvature of the image side surface of the third lens half
Diameter R6 and total effective focal length f of the optical imaging system meet -1.5 < R6/f < 0.
9. optical imaging system according to claim 1, which is characterized in that the curvature of the object side of the 6th lens half
Diameter R11 and the radius of curvature R 12 of the image side surface of the 6th lens meet 0 < R12/R11 < 2.
10. optical imaging system according to claim 1, which is characterized in that the object side of first lens has anti-
Qu Dian.
11. optical imaging system according to claim 1, which is characterized in that the object side of first lens is to described
Distance TTL of the imaging surface of optical imaging system on the optical axis and valid pixel on the imaging surface of the optical imaging system
The half ImgH of region diagonal line length meets TTL/ImgH < 3.
12. optical imaging system according to any one of claim 1 to 11, which is characterized in that the optical imagery system
The maximum angle of half field-of view HFOV of system meets HFOV >=70 °.
13. optical imaging system includes sequentially by object side to image side along optical axis：First lens, the second lens, the third lens,
4th lens, the 5th lens and the 6th lens, which is characterized in that
It is concave surface that first lens, which have negative power, image side surface,；
Second lens have positive light coke；
The third lens have positive light coke, and object side and image side surface are convex surface；
4th lens have focal power；
5th lens have focal power；
It is convex surface that 6th lens, which have focal power, object side, and image side surface is concave surface；
The effective focal length f1 of first lens, the effective focal length f3 of the third lens always have with the optical imaging system
1 < of effect focal length f satisfactions (| f1 |+| f3 |)/f < 3；And
The object side of first lens to the optical imaging system distance TTL of the imaging surface on the optical axis with it is described
The half ImgH of effective pixel area diagonal line length meets TTL/ImgH < 3 on the imaging surface of optical imaging system.
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