CN109491054A - Optical imaging lens - Google Patents
Optical imaging lens Download PDFInfo
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- CN109491054A CN109491054A CN201910056651.5A CN201910056651A CN109491054A CN 109491054 A CN109491054 A CN 109491054A CN 201910056651 A CN201910056651 A CN 201910056651A CN 109491054 A CN109491054 A CN 109491054A
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- optical imaging
- imaging lens
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- image side
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- 238000012634 optical imaging Methods 0.000 title claims abstract description 187
- 230000003287 optical effect Effects 0.000 claims abstract description 75
- 239000000571 coke Substances 0.000 claims abstract description 34
- 238000003384 imaging method Methods 0.000 claims description 46
- 210000001747 pupil Anatomy 0.000 claims description 19
- 230000004075 alteration Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 16
- 239000000463 material Substances 0.000 description 8
- 241000209094 Oryza Species 0.000 description 5
- 235000007164 Oryza sativa Nutrition 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 5
- 235000009566 rice Nutrition 0.000 description 5
- 241000700608 Sagitta Species 0.000 description 3
- 210000003128 head Anatomy 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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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
Abstract
This application discloses a kind of optical imaging lens, which sequentially includes: the first lens, the second lens, the third lens, the 4th lens and the 5th lens by object side to image side along optical axis.Wherein, the first lens have positive light coke, and object side and image side surface are convex surface；Second lens have negative power, and image side surface is concave surface；The third lens have focal power；4th lens have focal power, and object side is concave surface；5th lens have focal power；And first at least one lens into the 5th lens of lens have it is non-rotationally-symmetric aspherical.
Description
Technical field
This application involves a kind of optical imaging lens, more particularly, to a kind of optical imaging lens including five lens
Head.
Background technique
With the development of science and technology, especially sensitive component technology is constantly progressive, and market is to being mounted in mobile phone etc.
The image quality of camera lens on portable electronic product proposes more harsh requirement.Focal length pick-up lens and common lens phase
Than the image displayed on cmos detector is much greater, and details is finer and smoother, is more able to satisfy photographer to distant place scenery
Shooting demand.
Currently, rotational symmetry (axial symmetry) it is aspherical be pick-up lens mounted on mainstream mobile phone preferred face type.
Aspherical can regard as of this kind of rotational symmetry is formed around 360 ° of optical axis rotation by the curved surface in meridian plane, this face type
There is sufficient freedom degree in meridian plane, can farthest correct aberration on aberration, especially axis.However, but can not be simultaneously
Off-axis aberration is well corrected.
Summary of the invention
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 lens of at least one above-mentioned disadvantage, such as focal length optical imaging lens.
On the one hand, this application provides such a optical imaging lens, and the optical imaging lens are along optical axis by object side
It sequentially include the first lens, the second lens, the third lens, the 4th lens and the 5th lens to image side.Wherein, the first lens can have
There is positive light coke, object side and image side surface are convex surface；Second lens can have negative power, and image side surface is concave surface；The
Three lens have positive light coke or negative power；4th lens have positive light coke or negative power, and object side is concave surface；The
Five lens have positive light coke or negative power；And first at least one lens into the 5th lens of lens can have non-rotation
Turn symmetrical aspherical.
In one embodiment, the object side of the first lens to optical imaging lens distance of the imaging surface on optical axis
The effective focal length fy of the Y direction of TTL and optical imaging lens can meet TTL/fy < 1.00.
In one embodiment, jth face of first lens into the 5th lens is non-rotationally-symmetric aspherical, jth
The radius of curvature R jx of the X-direction of the radius of curvature R jy and jth face of the Y direction in face meets -18 < Rjy/Rjx < 10,
In, j=3 or 5 or 9 or 10.
In one embodiment, spacing distance T45 on optical axis of the 4th lens and the 5th lens, the third lens and
Center thickness CT3 and fourth lens of spacing distance T34, the third lens of four lens on optical axis on optical axis are on optical axis
Center thickness CT4 can meet 0.56 < T45/ (CT3+T34+CT4) < 2.90.
In one embodiment, the combined focal length f12y and optical imagery of the Y direction of the first lens and the second lens
The effective focal length fy of the Y direction of camera lens can meet 0.50 < f12y/fy < 1.00.
In one embodiment, the Entry pupil diameters EPD of optical imaging lens and the first lens are to the object side of the 5th lens
The maximum value SD_max of the maximum effective radius of face and image side surface can meet 1.00 < EPD/SD_max < 1.50.
In one embodiment, the song of the image side surface of the effective focal length f2y and the second lens of the Y direction of the second lens
Rate radius R4 can meet -1.55 < f2y/R4 < -0.64.
In one embodiment, maximum image side surface of the effective radius vertex away from the second lens of the image side surface of the second lens
0.50 < can be met with the center thickness CT2 of distance SAG22 and the second lens on optical axis of the intersection point of optical axis on optical axis
SAG22/CT2 < 1.00.
In one embodiment, the effective focal length f5y of the Y direction of the 5th lens, the object side of the 5th lens song
The radius of curvature R 10 of the image side surface of rate radius R9 and the 5th lens can meet -2.50 < f5y/ (R9+R10) < 2.50.
In one embodiment, the edge thickness ET2 of the second lens and the edge thickness ET3 of the third lens can meet
0.50 < ET2/ET3 < 2.50.
In one embodiment, the object side of the maximum effective radius SD41, the 5th lens of the object side of the 4th lens
Maximum effective radius SD51 and optical imaging lens imaging surface on the half ImgH of effective pixel area diagonal line length can expire
1.00 < of foot (SD41+SD51)/ImgH < 1.50.
In one embodiment, the effective focal length fx of the X-direction of optical imaging lens and entering for optical imaging lens
Pupil diameter EPD can meet 2.00 < fx/EPD < 4.00；And the effective focal length fy and optics of the Y direction of optical imaging lens
The Entry pupil diameters EPD of imaging lens can meet 2.32 < fy/EPD < 3.69.
In one embodiment, the first lens to the 5th lens respectively the summation ∑ CT of the center thickness on optical axis with
Distance TTL of the imaging surface on optical axis of the object side of first lens to optical imaging lens can meet 0.10 < ∑ CT/TTL <
0.50。
In one embodiment, the effective focal length fy of the Y direction of optical imaging lens and the X-axis of optical imaging lens
The effective focal length fx in direction can meet 0.50 < fy/fx < 1.50.
The application uses multi-disc (for example, five) 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 lens have focal length, miniaturization and
At least one beneficial effect such as high image quality.In addition, by introduce it is non-rotationally-symmetric aspherical, to the axis of optical imaging lens outside
Meridian aberration and sagitta of arc aberration are corrected simultaneously, to further obtain the promotion of image quality.
Detailed description of the invention
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 lens according to the embodiment of the present application 1；
Fig. 2 diagrammatically illustrates situation of the RMS spot diameter of the optical imaging lens of embodiment 1 in first quartile；
Fig. 3 shows the structural schematic diagram of the optical imaging lens according to the embodiment of the present application 2；
Fig. 4 diagrammatically illustrates situation of the RMS spot diameter of the optical imaging lens of embodiment 2 in first quartile；
Fig. 5 shows the structural schematic diagram of the optical imaging lens according to the embodiment of the present application 3；
Fig. 6 diagrammatically illustrates situation of the RMS spot diameter of the optical imaging lens of embodiment 3 in first quartile；
Fig. 7 shows the structural schematic diagram of the optical imaging lens according to the embodiment of the present application 4；
Fig. 8 diagrammatically illustrates situation of the RMS spot diameter of the optical imaging lens of embodiment 4 in first quartile；
Fig. 9 shows the structural schematic diagram of the optical imaging lens according to the embodiment of the present application 5；
Figure 10 diagrammatically illustrates situation of the RMS spot diameter of the optical imaging lens of embodiment 5 in first quartile；
Figure 11 shows the structural schematic diagram of the optical imaging lens according to the embodiment of the present application 6；
Figure 12 diagrammatically illustrates situation of the RMS spot diameter of the optical imaging lens of embodiment 6 in first quartile；
Figure 13 shows the structural schematic diagram of the optical imaging lens according to the embodiment of the present application 7；
Figure 14 diagrammatically illustrates situation of the RMS spot diameter of the optical imaging lens of embodiment 7 in first quartile；
Figure 15 shows the structural schematic diagram of the optical imaging lens according to the embodiment of the present application 8；
Figure 16 diagrammatically illustrates situation of the RMS spot diameter of the optical imaging lens of embodiment 8 in first quartile.
Specific embodiment
Various aspects of the reference attached drawing to the application are made more detailed description by the application in order to better understand.It answers
Understand, the only description to the illustrative embodiments of 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.Stating "and/or" includes associated institute
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, without indicating 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 ease 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.In each lens, it is known as this thoroughly near the surface of object
The object side of mirror；In each lens, the image side surface of the lens is known as near the surface of imaging surface.
Herein, it is Z-direction that we, which define and are parallel to the direction of optical axis, vertical with Z axis and in the meridional plane
Direction be Y direction, it is vertical with Z axis and be located at sagittal plane in direction be X-direction.Unless otherwise stated, this
Each mark of reference in text in addition to the mark of reference for being related to visual field indicates the characteristic parameter of the Y direction along pick-up lens
Value.For example, in case of no particular description, the f5y in conditional " f5y/ (R9+R10) " indicates the Y-axis side of the 5th lens
To effective focal length, R9 indicate the 5th lens object side Y direction radius of curvature, R10 indicate the 5th lens image side
The radius of curvature of the Y direction in face.
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 using in bright book, but does not preclude the presence or addition of one or more
Other feature, component, assembly unit and/or their combination.In addition, ought the statement of such as at least one of " ... " appear in institute
When after the list of column 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 and their consistent meanings of meaning 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.
Optical imaging lens according to the application illustrative embodiments may include such as five lens with focal power,
That is, the first lens, the second lens, the third lens, the 4th lens and the 5th lens.This five lens are along optical axis by object side to picture
Side sequential can have airspace between each adjacent lens.
In the exemplary embodiment, the first lens can have positive light coke, and object side and image side surface can be convex surface；The
Two lens can have negative power, and image side surface can be concave surface；The third lens have positive light coke or negative power；4th lens
With positive light coke or negative power, object side can be concave surface；5th lens have positive light coke or negative power.Rationally take
With the first power of lens and face type, it is ensured that the first lens have good machinability, can also further decrease imaging
Camera lens overall length keeps its compact-sized, reasonably combined second power of lens and face type, is conducive to correct optical imaging lens
Off-axis aberration, improves image quality, and the face type of the 4th lens of reasonable Arrangement can effectively reduce the tolerance sensitivity of camera lens.
Furthermore, it is possible to object side and/or image side surface by least one lens by the first lens into the 5th lens
It is set as non-rotationally-symmetric aspherical, further to promote image quality.It is non-rotationally-symmetric it is aspherical be a kind of free form surface,
Rotational symmetry it is aspherical on the basis of, increase non-rotational symmetry component, thus introduce in lens system non-rotationally-symmetric
It is aspherical to be conducive to by being effectively corrected to meridian aberration outside axis and sagitta of arc aberration, the greatly property of improving optical system
Energy.
In this application, the object side of each lens and image side surface are sequentially numbered (from the object side of the first lens to
The image side surface of 5th lens), specifically, the object side of the first lens is the 1st face, and the image side surface of the first lens is the 2nd face, successively
Analogize, until the image side surface of the 5th lens is the 10th face.In the exemplary embodiment, the optical imaging lens of the application can expire
Sufficient -18 < Rjy/Rjx < 10 of conditional, wherein Rjy is the radius of curvature of the Y direction in jth face, and Rjx is the X-axis side in jth face
To radius of curvature, wherein j=3 or 5 or 9 or 10.Meet -18 < Rjy/Rjx < 10 of conditional, is conducive to meet free song
The characteristic in face, the freedom degree of lifting system effectively correct the off-axis aberration of system, while can also effectively reduce the distortion of camera lens,
Make camera lens that there is better image quality.
For example, the object side of the second lens can be non-rotationally-symmetric aspherical, and -18 < R3y/ of conditional can be met
R3x < 10, wherein R3y is the radius of curvature of the Y direction of the object side of the second lens, and R3x is the object side of the second lens
The radius of curvature of X-direction.The object side of the third lens can be non-rotationally-symmetric aspherical and can meet -18 < of conditional
R5y/R5x < 10, wherein R5y is the radius of curvature of the Y direction of the object side of the third lens, and R5x is the object side of the third lens
The radius of curvature of the X-direction in face.The object side of 5th lens can be non-rotationally-symmetric aspherical and can meet conditional -18
< R9y/R9x < 10, wherein R9y is the radius of curvature of the Y direction of the object side of the 5th lens, and R9x is the object of the 5th lens
The radius of curvature of the X-direction of side.The image side surface of 5th lens can be non-rotationally-symmetric aspherical and can meet conditional-
18 < R10y/R10x < 10, wherein R10y is the radius of curvature of the Y direction of the image side surface of the 5th lens, and R10x is the 5th saturating
The radius of curvature of the X-direction of the image side surface of mirror.
In the exemplary embodiment, the optical imaging lens of the application can meet conditional TTL/fy < 1.00, wherein
TTL is the object side of the first lens to distance of the imaging surface on optical axis of optical imaging lens, and fy is the Y of optical imaging lens
The effective focal length of axis direction.More specifically, TTL and fy can further meet 0.5≤TTL/fy≤0.99, such as 0.82≤TTL/
fy≤0.99.The ratio for controlling TTL and fy, helps to maintain the focal length characteristic of optical imaging lens, has system lesser
The depth of field and biggish enlargement ratio, while also ensuring the miniaturization of imaging lens.
In the exemplary embodiment, the optical imaging lens of the application can meet 0.50 < fy/fx < 1.50 of conditional,
Wherein, fy is the effective focal length of the Y direction of optical imaging lens, and fx is the effective focal length of the X-direction of optical imaging lens.
More specifically, fx and fy can further meet 0.79≤fy/fx≤1.25.The rationally X-direction and Y of control optical imaging lens
The focal power of axis direction is conducive to the off-axis aberration for correcting its rear lens group, to improve the image quality of camera lens.
In the exemplary embodiment, the optical imaging lens of the application can meet 2.00 < fx/EPD < 4.00 of conditional
And/or meet 2.32 < fy/EPD < 3.69 of conditional, wherein fx is the effective focal length of the X-direction of optical imaging lens, fy
For the effective focal length of the Y direction of optical imaging lens, EPD is the Entry pupil diameters of optical imaging lens.More specifically, fx and
EPD, which can further meet 2.33≤fx/EPD≤3.69, fy and EPD, can further meet 2.89≤fy/EPD≤2.91.Rationally
The ability of camera lens storage light can be effectively controlled in the relative aperture for controlling optical imaging lens, improves the illumination and chip of image planes
Response improves image quality to reduce the power consumption of system.
In the exemplary embodiment, the optical imaging lens of the application can meet 0.10 < ∑ CT/TTL < of conditional
0.50, wherein ∑ CT is the summation of the first lens to the 5th lens center thickness on optical axis respectively, and TTL is the first lens
Object side to optical imaging lens distance of the imaging surface on optical axis.More specifically, ∑ CT and TTL can further meet
0.34≤∑CT/TTL≤0.47.The center thickness of each lens of reasonable disposition can effectively reduce the thickness-sensitive of camera lens, and
Help to correct the curvature of field.
In the exemplary embodiment, the optical imaging lens of the application can meet 0.56 < T45/ (CT3+T34 of conditional
+ CT4) < 2.90, wherein T45 is the spacing distance of the 4th lens and the 5th lens on optical axis, and T34 is the third lens and the
Spacing distance of four lens on optical axis, CT3 are center thickness of the third lens on optical axis, and CT4 is the 4th lens in optical axis
On center thickness.More specifically, T45, CT3, T34 and CT4 can further meet 0.57≤T45/ (CT3+T34+CT4)≤
2.89.Spacing distance of each lens of reasonable disposition on optical axis, can effectively reduce the thickness-sensitive of camera lens, and help to correct
The curvature of field.
In the exemplary embodiment, the optical imaging lens of the application can meet 0.50 < f12y/fy < of conditional
1.00, wherein f12y is the combined focal length of the Y direction of the first lens and the second lens, and fy is the Y-axis side of optical imaging lens
To effective focal length.More specifically, f12y and fy can further meet 0.75≤f12y/fy≤0.92.Rationally control first is thoroughly
The focal power of the Y direction of mirror and the second lens, it is ensured that the focal length characteristic of camera lens, and color difference can be corrected, improve imaging
Quality.
In the exemplary embodiment, the optical imaging lens of the application can meet 1.00 < EPD/SD_max < of conditional
1.50, wherein EPD is the Entry pupil diameters of optical imaging lens, and SD_max is object side and picture of first lens to the 5th lens
The maximum value of the maximum effective radius of side.More specifically, EPD and SD_max can further meet 1.13≤EPD/SD_max≤
1.46.The rationally ratio of control EPD and SD_max, can effectively control the face type of optical imaging lens, help to correct the curvature of field,
Improve image quality.
In the exemplary embodiment, the optical imaging lens of the application can meet -1.55 < f2y/R4 < of conditional -
0.64, wherein f2y is the effective focal length of the Y direction of the second lens, and R4 is the radius of curvature of the image side surface of the second lens.More
Specifically, f2y and R4 can further meet -1.54≤f2y/R4≤- 0.64.Rationally the second lens Y direction of control is effective
The ratio of focal length and image side curvature radius can control the curvature of the image side surface of the second lens, be in its curvature of field contribution amount
In reasonable range, the optical sensitive degree of the image side surface of the second lens is reduced.
In the exemplary embodiment, the optical imaging lens of the application can meet 0.50 < SAG22/CT2 < of conditional
1.00, wherein SAG22 is image side surface and optical axis of the maximum effective radius vertex away from the second lens of the image side surface of the second lens
Distance of the intersection point on optical axis, CT2 are center thickness of second lens on optical axis.More specifically, SAG22 and CT2 are further
0.66≤SAG22/CT2≤0.90 can be met.Rationally control lens face type, can rationally control system spherical aberration and coma, really
Protect preferable image quality.
In the exemplary embodiment, the optical imaging lens of the application can meet -2.50 < f5y/ (R9+ of conditional
R10) 2.50 <, wherein f5y is the effective focal length of the Y direction of the 5th lens, and R9 is the curvature half of the object side of the 5th lens
Diameter, R10 are the radius of curvature of the image side surface of the 5th lens.More specifically, f5y, R9 and R10 can further meet -2.16≤
f5y/(R9+R10)≤2.16.Meet conditional -2.50 < f5y/ (R9+R10) < 2.50, the spherical aberration of system can be eliminated, made
The image quality of camera lens is more preferably.
In the exemplary embodiment, the optical imaging lens of the application can meet 0.50 < ET2/ET3 < of conditional
2.50, wherein ET2 is the edge thickness of the second lens, and ET3 is the edge thickness of the third lens.More specifically, ET2 and ET3 into
One step can meet 0.50 < ET2/ET3 < 2.30, such as 0.71≤ET2/ET3≤2.09.The second lens of reasonable disposition and third
The edge thickness of lens may make the second lens and the third lens to be easy to injection molding, help to improve adding for imaging system
Work, while also ensuring preferable image quality.
In the exemplary embodiment, the optical imaging lens of the application can meet 1.00 < of conditional (SD41+SD51)/
ImgH < 1.50, wherein SD41 is the maximum effective radius of the object side of the 4th lens, and SD51 is the object side of the 5th lens
Maximum effective radius, ImgH are the half of effective pixel area diagonal line length on the imaging surface of optical imaging lens.More specifically,
SD41, SD51 and ImgH can further meet 1.01≤(SD41+SD51)/ImgH≤1.33.Meet 1.00 < (SD41 of conditional
+ SD51)/ImgH < 1.50, true field can be effectively shared, the F-theta distortion of camera lens is corrected, thus effective lifting system
Image quality.
In the exemplary embodiment, above-mentioned optical imaging lens may also include diaphragm, to promote the image quality of camera lens.
Optionally, diaphragm may be provided between the first lens and the second lens.
Optionally, above-mentioned optical imaging lens may also include optical filter for correcting color error ratio and/or for protecting
The protection glass of photosensitive element on imaging surface.
Multi-disc eyeglass, such as described above five can be used according to the optical imaging lens 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 imaging lens
Head, which is more advantageous to, to be produced and processed and is applicable to portable electronic product.In addition, it is non-rotationally-symmetric aspherical by introducing,
Meridian aberration outside the axis of optical imaging lens and sagitta of arc aberration are corrected, further image quality can be obtained and promoted.
In presently filed embodiment, the mirror surface of each lens mostly uses aspherical mirror.The characteristics of non-spherical lens, is:
From lens centre to lens perimeter, curvature is consecutive variations.With the ball from lens centre to lens perimeter with constant curvature
Face lens are different, and non-spherical lens has more preferably radius of curvature characteristic, and there is improvement to distort aberration and improve astigmatic image error
Advantage.After non-spherical lens, the aberration occurred when imaging can be eliminated, as much as possible so as to improve at image quality
Amount.Optionally, the object side of the first lens, the second lens, the third lens, the 4th lens and each lens in the 5th lens and
At least one of image side surface can be aspherical.Optionally, the first lens, the second lens, the third lens, the 4th lens and the 5th
The object side of each lens in lens and image side surface can be aspherical.
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 lens can be changed, to obtain each result and advantage described in this specification.Example
Such as, although being described by taking five lens as an example in embodiments, which is not limited to include five
Lens.If desired, the optical imaging lens may also include the lens of other quantity.
The specific embodiment for being applicable to the optical imaging lens of above embodiment is further described with reference to the accompanying drawings.
Embodiment 1
Referring to Fig. 1 and Fig. 2 description according to the optical imaging lens of the embodiment of the present application 1.Fig. 1 is shown according to this Shen
Please embodiment 1 optical imaging lens structural schematic diagram.
As shown in Figure 1, according to the optical imaging lens of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter
E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is convex surface.Second lens E2 has
Negative power, object side S3 are concave surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Concave surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is convex surface.The
Five lens E5 have negative power, and object side S9 is concave surface, and image side surface S10 is concave surface.Optical filter E6 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 1 show the surface types of each lens of the optical imaging lens of embodiment 1, radius of curvature X, radius of curvature Y,
Thickness, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are millimeter
(mm)。
Table 1
It should be understood that in upper table without especially indicate (blank space) " radius of curvature X " and " circular cone coefficient X " with it is right
" radius of curvature Y " and " circular cone coefficient Y " numerical value answered is consistent.It is similar in following embodiment.
As shown in Table 1, any one lens in the first lens E1, the second lens E2, the third lens E3 and the 4th lens E4
Object side and image side surface be the aspherical of rotational symmetry.In the present embodiment, the face of the non-spherical lens of each rotational symmetry
Type x 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, inverse that paraxial curvature c is upper 1 mean curvature radius R of table)；K be circular cone coefficient (
It has been provided in table 1)；Ai is the correction factor of aspherical i-th-th rank.The following table 2 give can be used for it is each aspherical in embodiment 1
The high-order coefficient A of mirror surface S1-S84、A6、A8、A10、A12、A14And A16。
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 1.00E-02 | 6.40E-05 | 4.12E-03 | -4.00E-03 | 1.48E-03 | 2.16E-04 | -3.09E-04 |
| S2 | 1.28E-02 | 2.80E-02 | -4.00E-02 | 3.07E-02 | -1.46E-02 | 3.09E-03 | -1.05E-04 |
| S3 | -2.01E-04 | 1.98E-01 | -4.68E-01 | 9.27E-01 | -1.18E+00 | 8.21E-01 | -2.32E-01 |
| S4 | 9.81E-02 | 1.37E-01 | -3.87E-01 | 1.17E+00 | -1.95E+00 | 1.74E+00 | -5.80E-01 |
| S5 | -1.06E-01 | 1.38E-02 | 2.00E-02 | 6.12E-03 | -8.56E-02 | 1.43E-01 | -5.79E-02 |
| S6 | 3.66E-02 | -3.70E-01 | 7.42E-01 | -8.54E-01 | 5.27E-01 | -1.18E-01 | -5.24E-03 |
| S7 | 3.53E-02 | -3.09E-01 | 6.28E-01 | -6.94E-01 | 3.93E-01 | -5.56E-02 | -2.17E-02 |
| S8 | 1.50E-01 | -2.57E-01 | 3.61E-01 | -3.44E-01 | 2.13E-01 | -7.20E-02 | 9.85E-03 |
Table 2
By table 1 it can also be seen that the object side S9 and image side surface S10 of the 5th lens E5 are non-rotationally-symmetric aspherical
(that is, the face AAS), non-rotationally-symmetric aspherical face type it is available but be not limited to following non-rotationally-symmetric aspherical formula into
Row limits:
Wherein, z is the rise for being parallel to the face of Z-direction；Cx, Cy are respectively curvature (=1/ song of X, Y-direction vertex of surface
Rate radius)；Kx, Ky are respectively X, Y-direction circular cone coefficient；AR, BR, CR, DR, ER, FR, GR, HR, JR are respectively aspherical rotation
4 ranks, 6 ranks, 8 ranks in symmetrical components, 10 ranks, 12 ranks, 14 ranks, 16 ranks, 18 ranks, 20 level numbers；AP,BP,CP,DP,EP,FP,
GP, HP, JP are respectively 4 ranks, 6 ranks, 8 ranks, 10 ranks, 12 ranks, 14 ranks, 16 ranks, 18 ranks, 20 in aspherical non-rotational symmetry component
Level number.The following table 3 gives each level number that can be used for the non-rotationally-symmetric aspherical S9 and S10 in embodiment 1.
Table 3
Table 4 gives the optics total length TTL of optical imaging lens in embodiment 1 (that is, from the object side of the first lens E1
Distance of the S1 to imaging surface S13 on optical axis), the half ImgH of effective pixel area diagonal line length on imaging surface S13, optics at
As the Y direction of the Entry pupil diameters EPD of camera lens, the effective focal length fx of the X-direction of optical imaging lens, optical imaging lens
The effective focal length f1y to f5y of the Y direction of effective focal length fy and each lens.
| TTL(mm) | 6.08 | f1y(mm) | 2.62 |
| ImgH(mm) | 2.30 | f2y(mm) | -3.17 |
| EPD(mm) | 2.40 | f3y(mm) | 4.92 |
| fx(mm) | 5.60 | f4y(mm) | -4.49 |
| fy(mm) | 7.00 | f5y(mm) | -6.79 |
Table 4
Optical imaging lens in embodiment 1 meet:
TTL/fy=0.87, wherein TTL is the object side S1 of the first lens E1 to the imaging surface S13 of optical imaging lens
Distance on optical axis, fy are the effective focal length of the Y direction of optical imaging lens；
Fy/fx=1.25, wherein fy is the effective focal length of the Y direction of optical imaging lens, and fx is optical imaging lens
X-direction effective focal length；
Fx/EPD=2.33, wherein fx is the effective focal length of the X-direction of optical imaging lens, and EPD is optical imaging lens
The Entry pupil diameters of head；
Fy/EPD=2.91, wherein fy is the effective focal length of the Y direction of optical imaging lens, and EPD is optical imaging lens
The Entry pupil diameters of head；
∑ CT/TTL=0.44, wherein ∑ CT is that center of the first lens E1 to the 5th lens E5 respectively on optical axis is thick
The summation of degree, distance of the imaging surface S13 of the object side S1 that TTL is the first lens E1 to optical imaging lens on optical axis；
T45/ (CT3+T34+CT4)=1.31, wherein T45 be the 4th lens E4 and the 5th lens E5 on optical axis between
Gauge is from T34 is the spacing distance of the third lens E3 and the 4th lens E4 on optical axis, and CT3 is the third lens E3 on optical axis
Center thickness, CT4 be center thickness of the 4th lens E4 on optical axis；
F12y/fy=0.83, wherein f12y is the combined focal length of the Y direction of the first lens E1 and the second lens E2, fy
For the effective focal length of the Y direction of optical imaging lens；
EPD/SD_max=1.32, wherein EPD is the Entry pupil diameters of optical imaging lens, and SD_max is the first lens E1
To the maximum value of the maximum effective radius of the object side and image side surface of the 5th lens E5；
F2y/R4=-1.18, wherein f2y is the effective focal length of the Y direction of the second lens E2, and R4 is the second lens E2
Image side surface S4 radius of curvature；
SAG22/CT2=0.77, wherein SAG22 be the second lens E2 image side surface S4 maximum effective radius vertex away from
The distance of the image side surface S4 of second lens E2 and the intersection point of optical axis on optical axis, CT2 are center of the second lens E2 on optical axis
Thickness；
F5y/ (R9+R10)=2.16, wherein f5y is the effective focal length of the Y direction of the 5th lens E5, and R9 is the 5th saturating
The radius of curvature of the object side of mirror E5, R10 are the radius of curvature of the image side surface of the 5th lens E5；
ET2/ET3=1.29, wherein ET2 is the edge thickness of the second lens E2, and the edge that ET3 is the third lens E3 is thick
Degree；
(SD41+SD51)/ImgH=1.17, wherein SD41 is the maximum effective radius of the object side S7 of the 4th lens E4,
SD51 is the maximum effective radius of the object side S9 of the 5th lens E5, and ImgH is effective on the imaging surface S13 of optical imaging lens
The half of pixel region diagonal line length.
At Fig. 2 shows the RMS spot diameters of the optical imaging lens of embodiment 1 in first quartile different image heights position
Size cases.As can be seen from FIG. 2, optical imaging lens given by embodiment 1 can be realized good image quality.
Embodiment 2
Referring to Fig. 3 and Fig. 4 description according to the optical imaging lens 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 lens structural schematic diagram.
As shown in figure 3, according to the optical imaging lens of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter
E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is convex surface.Second lens E2 has
Negative power, object side S3 are concave surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is
Concave surface, image side surface S6 are convex surface.4th lens E4 has positive light coke, and object side S7 is concave surface, and image side surface S8 is convex surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.Optical filter E6 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 5 show the surface types of each lens of the optical imaging lens of embodiment 2, radius of curvature X, radius of curvature Y,
Thickness, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are millimeter
(mm)。
Table 5
As shown in Table 5, in example 2, in the first lens E1, the second lens E2, the third lens E3 and the 4th lens E4
The object side S9 of the object side of any one lens and image side surface and the 5th lens E5 are the aspherical of rotational symmetry；5th
The image side surface S10 of lens E5 is non-rotationally-symmetric aspherical.
Table 6 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 2, wherein each aspherical face type can
It is limited by the formula (1) provided in above-described embodiment 1.Table 7 show can be used for it is non-rotationally-symmetric aspherical in embodiment 2
The rotational symmetry component of S10 and the higher order coefficient of non-rotational symmetry component, wherein non-rotationally-symmetric aspherical face type can be by
The formula (2) provided in above-described embodiment 1 limits.
Table 6
Table 7
Table 8 gives effective pixel area on optics total length TTL, the imaging surface S13 of optical imaging lens in embodiment 2
The effective focal length of the X-direction of the half ImgH of diagonal line length, the Entry pupil diameters EPD of optical imaging lens, optical imaging lens
The effective focal length f1y to f5y of the Y direction of the effective focal length fy and each lens of the Y direction of fx, optical imaging lens.
| TTL(mm) | 6.92 | f1y(mm) | 2.80 |
| ImgH(mm) | 2.30 | f2y(mm) | -3.56 |
| EPD(mm) | 2.40 | f3y(mm) | -108.18 |
| fx(mm) | 5.60 | f4y(mm) | 33.68 |
| fy(mm) | 7.00 | f5y(mm) | -17.11 |
Table 8
Fig. 4 shows the RMS spot diameters of the optical imaging lens of embodiment 2 in first quartile at different image heights position
Size cases.As can be seen from FIG. 4, optical imaging lens given by embodiment 2 can be realized good image quality.
Embodiment 3
The optical imaging lens according to the embodiment of the present application 3 are described referring to Fig. 5 and Fig. 6.Fig. 5 is shown according to this
Apply for the structural schematic diagram of the optical imaging lens of embodiment 3.
As shown in figure 5, according to the optical imaging lens of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter
E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is convex surface.Second lens E2 has
Negative power, object side S3 are concave surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Concave surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is convex surface.The
Five lens E5 have positive light coke, and object side S9 is concave surface, and image side surface S10 is convex surface.Optical filter E6 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 9 show the surface types of each lens of the optical imaging lens of embodiment 3, radius of curvature X, radius of curvature Y,
Thickness, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are millimeter
(mm)。
Table 9
As shown in Table 9, in embodiment 3, in the first lens E1, the second lens E2, the third lens E3 and the 4th lens E4
The object side of any one lens and image side surface are the aspherical of rotational symmetry；The object side S9 and image side surface of 5th lens E5
S10 is non-rotationally-symmetric aspherical.
Table 10 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 3, wherein each aspherical face type can
It is limited by the formula (1) provided in above-described embodiment 1.Table 11 show can be used for it is non-rotationally-symmetric aspherical in embodiment 3
The rotational symmetry component of S9 and S10 and the higher order coefficient of non-rotational symmetry component, wherein non-rotationally-symmetric aspherical face type
It can be limited by the formula (2) provided in above-described embodiment 1.
Table 10
Table 11
Table 12 gives effective pixel region on optics total length TTL, the imaging surface S13 of optical imaging lens in embodiment 3
Effective coke of the X-direction of the half ImgH of domain diagonal line length, the Entry pupil diameters EPD of optical imaging lens, optical imaging lens
The effective focal length f1y to f5y of the Y direction of the effective focal length fy and each lens of Y direction away from fx, optical imaging lens.
| TTL(mm) | 6.87 | f1y(mm) | 2.95 |
| ImgH(mm) | 2.30 | f2y(mm) | -3.71 |
| EPD(mm) | 2.40 | f3y(mm) | 6.07 |
| fx(mm) | 8.69 | f4y(mm) | -5.65 |
| fy(mm) | 6.95 | f5y(mm) | 8.06 |
Table 12
Fig. 6 shows the RMS spot diameters of the optical imaging lens of embodiment 3 in first quartile at different image heights position
Size cases.As can be seen from FIG. 6, optical imaging lens given by embodiment 3 can be realized good image quality.
Embodiment 4
The optical imaging lens according to the embodiment of the present application 4 are described referring to Fig. 7 and Fig. 8.Fig. 7 is shown according to this
Apply for the structural schematic diagram of the optical imaging lens of embodiment 4.
As shown in fig. 7, according to the optical imaging lens of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter
E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is convex surface.Second lens E2 has
Negative power, object side S3 are concave surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Concave surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is convex surface.The
Five lens E5 have positive light coke, and object side S9 is concave surface, and image side surface S10 is convex surface.Optical filter E6 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 13 shows the surface type of each lens of the optical imaging lens of embodiment 4, radius of curvature X, radius of curvature
Y, thickness, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are milli
Rice (mm).
Table 13
As shown in Table 13, in example 4, in the first lens E1, the second lens E2, the third lens E3 and the 4th lens E4
The object side S9 of the object side of any one lens and image side surface and the 5th lens E5 are the aspherical of rotational symmetry；5th
The image side surface S10 of lens E5 is non-rotationally-symmetric aspherical.
Table 14 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 4, wherein each aspherical face type can
It is limited by the formula (1) provided in above-described embodiment 1.Table 15 show can be used for it is non-rotationally-symmetric aspherical in embodiment 4
The rotational symmetry component of S10 and the higher order coefficient of non-rotational symmetry component, wherein non-rotationally-symmetric aspherical face type can be by
The formula (2) provided in above-described embodiment 1 limits.
Table 14
Table 15
Table 16 gives effective pixel region on optics total length TTL, the imaging surface S13 of optical imaging lens in embodiment 4
Effective coke of the X-direction of the half ImgH of domain diagonal line length, the Entry pupil diameters EPD of optical imaging lens, optical imaging lens
The effective focal length f1y to f5y of the Y direction of the effective focal length fy and each lens of Y direction away from fx, optical imaging lens.
Table 16
Fig. 8 shows the RMS spot diameters of the optical imaging lens of embodiment 4 in first quartile at different image heights position
Size cases.As can be seen from FIG. 8, optical imaging lens given by embodiment 4 can be realized good image quality.
Embodiment 5
The optical imaging lens according to the embodiment of the present application 5 are described referring to Fig. 9 and Figure 10.Fig. 9 shows basis
The structural schematic diagram of the optical imaging lens of the embodiment of the present application 5.
As shown in figure 9, according to the optical imaging lens of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter
E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is convex surface.Second lens E2 has
Negative power, object side S3 are concave surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is convex surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.Optical filter E6 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 17 shows the surface type of each lens of the optical imaging lens of embodiment 5, radius of curvature X, radius of curvature
Y, thickness, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are milli
Rice (mm).
Table 17
As shown in Table 17, in embodiment 5, in the first lens E1, the second lens E2, the third lens E3 and the 4th lens E4
The object side of any one lens and image side surface are the aspherical of rotational symmetry；The object side S9 and image side surface of 5th lens E5
S10 is non-rotationally-symmetric aspherical.
Table 18 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 5, wherein each aspherical face type can
It is limited by the formula (1) provided in above-described embodiment 1.Table 19 show can be used for it is non-rotationally-symmetric aspherical in embodiment 5
The rotational symmetry component of S9 and S10 and the higher order coefficient of non-rotational symmetry component, wherein non-rotationally-symmetric aspherical face type
It can be limited by the formula (2) provided in above-described embodiment 1.
Table 18
Table 19
Table 20 gives effective pixel region on optics total length TTL, the imaging surface S13 of optical imaging lens in embodiment 5
Effective coke of the X-direction of the half ImgH of domain diagonal line length, the Entry pupil diameters EPD of optical imaging lens, optical imaging lens
The effective focal length f1y to f5y of the Y direction of the effective focal length fy and each lens of Y direction away from fx, optical imaging lens.
| TTL(mm) | 6.29 | f1y(mm) | 2.72 |
| ImgH(mm) | 2.30 | f2y(mm) | -2.98 |
| EPD(mm) | 2.40 | f3y(mm) | 4.64 |
| fx(mm) | 5.60 | f4y(mm) | -3.90 |
| fy(mm) | 7.00 | f5y(mm) | -27.73 |
Table 20
Figure 10 shows the RMS spot diameters of the optical imaging lens of the embodiment 5 different image heights position in first quartile
The size cases at place.As can be seen from FIG. 10, optical imaging lens given by embodiment 5 can be realized good image quality.
Embodiment 6
The optical imaging lens according to the embodiment of the present application 6 are described referring to Figure 11 and Figure 12.Figure 11 shows root
According to the structural schematic diagram of the optical imaging lens of the embodiment of the present application 6.
As shown in figure 11, according to the optical imaging lens of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter
E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is convex surface.Second lens E2 has
Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.Optical filter E6 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 21 shows the surface type of each lens of the optical imaging lens of embodiment 6, radius of curvature X, radius of curvature
Y, thickness, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are milli
Rice (mm).
Table 21
As shown in Table 21, in embodiment 6, in the first lens E1, the second lens E2, the 4th lens E4 and the 5th lens E5
The image side surface S6 of the object side of any one lens and image side surface and the third lens E3 are the aspherical of rotational symmetry；Third
The object side S5 of lens E3 is non-rotationally-symmetric aspherical.
Table 22 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 6, wherein each aspherical face type can
It is limited by the formula (1) provided in above-described embodiment 1.Table 23 show can be used for it is non-rotationally-symmetric aspherical in embodiment 6
The rotational symmetry component of S5 and the higher order coefficient of non-rotational symmetry component, wherein non-rotationally-symmetric aspherical face type can be by
The formula (2) provided in above-described embodiment 1 limits.
Table 22
Table 23
Table 24 gives effective pixel region on optics total length TTL, the imaging surface S13 of optical imaging lens in embodiment 6
Effective coke of the X-direction of the half ImgH of domain diagonal line length, the Entry pupil diameters EPD of optical imaging lens, optical imaging lens
The effective focal length f1y to f5y of the Y direction of the effective focal length fy and each lens of Y direction away from fx, optical imaging lens.
| TTL(mm) | 6.03 | f1y(mm) | 2.80 |
| ImgH(mm) | 2.30 | f2y(mm) | -3.51 |
| EPD(mm) | 2.40 | f3y(mm) | 5.20 |
| fx(mm) | 6.36 | f4y(mm) | -4.02 |
| fy(mm) | 7.00 | f5y(mm) | -6.91 |
Table 24
Figure 12 shows the RMS spot diameters of the optical imaging lens of the embodiment 6 different image heights position in first quartile
The size cases at place.As can be seen from FIG. 12, optical imaging lens given by embodiment 6 can be realized good image quality.
Embodiment 7
The optical imaging lens according to the embodiment of the present application 7 are described referring to Figure 13 and Figure 14.Figure 13 shows root
According to the structural schematic diagram of the optical imaging lens of the embodiment of the present application 7.
As shown in figure 13, according to the optical imaging lens of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter
E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is convex surface.Second lens E2 has
Negative power, object side S3 are concave surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Convex surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is concave surface, and image side surface S10 is concave surface.Optical filter E6 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 25 shows the surface type of each lens of the optical imaging lens of embodiment 7, radius of curvature X, radius of curvature
Y, thickness, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are milli
Rice (mm).
Table 25
As shown in Table 25, in embodiment 7, in the first lens E1, the third lens E3, the 4th lens E4 and the 5th lens E5
The image side surface S4 of the object side of any one lens and image side surface and the second lens E2 are the aspherical of rotational symmetry；Second
The object side S3 of lens E2 is non-rotationally-symmetric aspherical.
Table 26 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 7, wherein each aspherical face type can
It is limited by the formula (1) provided in above-described embodiment 1.Table 27 show can be used for it is non-rotationally-symmetric aspherical in embodiment 7
The rotational symmetry component of S3 and the higher order coefficient of non-rotational symmetry component, wherein non-rotationally-symmetric aspherical face type can be by
The formula (2) provided in above-described embodiment 1 limits.
Table 26
Table 27
Table 28 gives effective pixel region on optics total length TTL, the imaging surface S13 of optical imaging lens in embodiment 7
Effective coke of the X-direction of the half ImgH of domain diagonal line length, the Entry pupil diameters EPD of optical imaging lens, optical imaging lens
The effective focal length f1y to f5y of the Y direction of the effective focal length fy and each lens of Y direction away from fx, optical imaging lens.
Table 28
Figure 14 shows the RMS spot diameters of the optical imaging lens of the embodiment 7 different image heights position in first quartile
The size cases at place.As can be seen from FIG. 14, optical imaging lens given by embodiment 7 can be realized good image quality.
Embodiment 8
The optical imaging lens according to the embodiment of the present application 8 are described referring to Figure 15 and Figure 16.Figure 15 shows root
According to the structural schematic diagram of the optical imaging lens of the embodiment of the present application 8.
As shown in figure 15, according to the optical imaging lens of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes: the first lens E1, diaphragm STO, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter
E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is convex surface.Second lens E2 has
Negative power, object side S3 are concave surface, and image side surface S4 is concave surface.The third lens E3 has positive light coke, and object side S5 is
Concave surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is concave surface, and image side surface S10 is concave surface.Optical filter E6 have object side S11 and
Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 29 shows the surface type of each lens of the optical imaging lens of embodiment 8, radius of curvature X, radius of curvature
Y, thickness, material, circular cone coefficient X and circular cone coefficient Y, wherein the unit of radius of curvature X, radius of curvature Y and thickness are milli
Rice (mm).
Table 29
As shown in Table 29, in embodiment 8, in the first lens E1, the second lens E2, the 4th lens E4 and the 5th lens E5
The image side surface S6 of the object side of any one lens and image side surface and the third lens E3 are the aspherical of rotational symmetry；Third
The object side S5 of lens E3 is non-rotationally-symmetric aspherical.
Table 30 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 8, wherein each aspherical face type can
It is limited by the formula (1) provided in above-described embodiment 1.Table 31 show can be used for it is non-rotationally-symmetric aspherical in embodiment 8
The rotational symmetry component of S5 and the higher order coefficient of non-rotational symmetry component, wherein non-rotationally-symmetric aspherical face type can be by
The formula (2) provided in above-described embodiment 1 limits.
Table 30
Table 31
Table 32 gives effective pixel region on optics total length TTL, the imaging surface S13 of optical imaging lens in embodiment 8
Effective coke of the X-direction of the half ImgH of domain diagonal line length, the Entry pupil diameters EPD of optical imaging lens, optical imaging lens
The effective focal length f1y to f5y of the Y direction of the effective focal length fy and each lens of Y direction away from fx, optical imaging lens.
| TTL(mm) | 5.77 | f1y(mm) | 2.54 |
| ImgH(mm) | 2.30 | f2y(mm) | -3.33 |
| EPD(mm) | 2.40 | f3y(mm) | 4.56 |
| fx(mm) | 6.31 | f4y(mm) | -3.76 |
| fy(mm) | 7.00 | f5y(mm) | -5.39 |
Table 32
Figure 16 shows the RMS spot diameters of the optical imaging lens of the embodiment 8 different image heights position in first quartile
The size cases at place.As can be seen from FIG. 16, optical imaging lens given by embodiment 8 can be realized good image quality.
To sum up, embodiment 1 to embodiment 8 meets relationship shown in table 33 respectively.
Table 33
The application also provides a kind of photographic device, and electronics photosensitive element can be photosensitive coupling element (CCD) or complementation
Property matal-oxide semiconductor element (CMOS).Photographic device can be the independent picture pick-up device of such as digital camera, be also possible to
The photographing module being integrated on the mobile electronic devices such as mobile phone.The photographic device is equipped with optical imaging lens described above
Head.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it 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
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (10)
- It by object side to image side sequentially include: the first lens, the second lens, the third lens, along optical axis 1. optical imaging lens Four lens and the 5th lens, which is characterized in thatFirst lens have positive light coke, and object side and image side surface are convex surface；Second lens have negative power, and image side surface is concave surface；The third lens have focal power；4th lens have focal power, and object side is concave surface；5th lens have focal power；AndAt least one lens of first lens into the 5th lens have non-rotationally-symmetric aspherical.
- 2. optical imaging lens according to claim 1, which is characterized in that the object side of first lens to the light Learn the effective focal length of the Y direction of distance TTL and the optical imaging lens of the imaging surface of imaging lens on the optical axis Fy meets TTL/fy < 1.00.
- 3. optical imaging lens according to claim 1, which is characterized in that first lens are into the 5th lens Jth face be non-rotationally-symmetric aspherical, the X-axis side of the radius of curvature R jy of the Y direction in the jth face and the jth face To radius of curvature R jx meet -18 < Rjy/Rjx < 10, wherein j=3 or 5 or 9 or 10.
- 4. optical imaging lens according to claim 1, which is characterized in that the 4th lens and the 5th lens exist Spacing distance T34 on the optical axis of spacing distance T45, the third lens and the 4th lens on the optical axis, Center thickness CT3 of the third lens on the optical axis and center thickness CT4 of the 4th lens on the optical axis Meet 0.56 < T45/ (CT3+T34+CT4) < 2.90.
- 5. optical imaging lens according to claim 1, which is characterized in that first lens and second lens The effective focal length fy of the Y direction of the combined focal length f12y and optical imaging lens of Y direction meets 0.50 < f12y/fy < 1.00.
- 6. optical imaging lens according to claim 1, which is characterized in that the Entry pupil diameters of the optical imaging lens EPD and first lens are full to the maximum value SD_max of the object side of the 5th lens and the maximum effective radius of image side surface 1.00 < EPD/SD_max < 1.50 of foot.
- 7. optical imaging lens according to claim 1, which is characterized in that the Y direction of second lens it is effective The radius of curvature R 4 of the image side surface of focal length f2y and second lens meets -1.60 < f2y/R4 < -0.50.
- 8. optical imaging lens according to any one of claim 1 to 7, which is characterized in that the optical imaging lens Y direction effective focal length fy and the optical imaging lens X-direction effective focal length fx meet 0.50 < fy/fx < 1.50。
- 9. optical imaging lens according to any one of claim 1 to 7, which is characterized in that the optical imaging lens X-direction effective focal length fx and the optical imaging lens Entry pupil diameters EPD meet 2.00 < fx/EPD < 4.00；With AndThe effective focal length fy of the Y direction of the optical imaging lens and the Entry pupil diameters EPD of the optical imaging lens meet 2.32 < fy/EPD < 3.69.
- 10. optical imaging lens according to any one of claim 1 to 7, which is characterized in that first lens to institute The object side of the 5th lens the summation ∑ CT of the center thickness on the optical axis and first lens respectively is stated to the light It learns distance TTL of the imaging surface of imaging lens on the optical axis and meets 0.10 < ∑ CT/TTL < 0.50.
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