CN209388015U - Imaging lens - Google Patents
Imaging lens Download PDFInfo
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- CN209388015U CN209388015U CN201920043906.XU CN201920043906U CN209388015U CN 209388015 U CN209388015 U CN 209388015U CN 201920043906 U CN201920043906 U CN 201920043906U CN 209388015 U CN209388015 U CN 209388015U
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Abstract
This application discloses a kind of 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 is convex surface；Second lens have focal power, and image side surface is concave surface；The third lens have focal power, and image side surface is convex surface；4th lens have positive light coke, and image side surface is convex surface；5th lens have negative power, and image side surface is concave surface；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 imaging lens, more particularly, to a kind of imaging lens including five lens.
Background technique
Currently, the forming technique of five chip camera lenses and the vertical technique of group are very mature, application is very universal.But it is limited to eyeglass
Surface type (aspherical), the development of five chip camera lenses is restricted.Under the premise of not increasing number of elements, in order to mention
The image quality of high system, it is necessary to increase more freedom.Free form surface can satisfy this requirement.Free form surface is a kind of non-
The surface type of rotational symmetry can be used for improving the direction s and the direction t it comprises two freedom degrees of X-direction and Y-direction
Image quality can be used for correcting TV distortion.In view of the forming technique that free form surface is more mature, the camera lens containing free form surface will be
A kind of trend.This patent significantly improves the image quality of camera lens in conjunction with free form surface for a five chip camera lenses, can instruct
The optical design of camera lens.
Utility model content
This application provides be applicable to portable electronic product, can at least solve or part solve it is in the prior art
The imaging lens of at least one above-mentioned disadvantage, such as the imaging lens suitable for mobile phone postposition camera lens.
On the one hand, this application provides a kind of imaging lens, which is sequentially wrapped along optical axis by object side to image side
It including: the first lens, the second lens, the third lens, the 4th lens and the 5th lens, wherein the first lens can have positive light coke,
Its object side can be convex surface；Second lens can have focal power, and image side surface can be concave surface；The third lens can have focal power,
Its image side surface can be convex surface；4th lens can have positive light coke, and image side surface can be convex surface；5th lens can have negative light focus
Degree, image side surface can be concave surface；And first at least one lens into the 5th lens of lens can have it is non-rotationally-symmetric
It is aspherical.
In one embodiment, the Entry pupil diameters EPD of the effective focal length fx and imaging lens of the X-direction of imaging lens
Fx/EPD < 2.0 can be met；And the effective focal length fy of the Y direction of imaging lens and the Entry pupil diameters EPD of imaging lens can expire
Sufficient fy/EPD < 2.0.
In one embodiment, the object side of the first lens of imaging lens is to the imaging surface of imaging lens on optical axis
Distance TTL and imaging lens imaging surface on effective pixel area diagonal line length half ImgH can meet TTL/ImgH <
1.8。
In one embodiment, the object of the effective focal length fx, the first lens of imaging lens of the X-direction of imaging lens
Side to imaging lens distance TTL, the Entry pupil diameters EPD of imaging lens and the imaging of imaging lens of the imaging surface on optical axis
The half ImgH of effective pixel area diagonal line length can meet (fx × TTL)/(EPD × ImgH) < 3.5 on face；And imaging lens
The effective focal length fy of Y direction of head, the first lens of imaging lens object side to imaging lens imaging surface on optical axis
Distance TTL, the Entry pupil diameters EPD of imaging lens and the imaging surface of imaging lens on effective pixel area diagonal line length half
ImgH can meet (fy × TTL)/(EPD × ImgH) < 3.5.
In one embodiment, the Y direction of the effective focal length fx and imaging lens of the X-direction of imaging lens has
Effect focal length fy can meet 0.9 < fy/fx < 1.1.
In one embodiment, the Y direction of the focal length f1y in the Y direction of the first lens and imaging lens has
Effect focal length fy can meet 0.7 < f1y/fy < 1.3.
In one embodiment, the Y-axis of the image side surface of the focal length f4y in the Y direction of the 4th lens and the 4th lens
The radius of curvature R 8 in direction can meet -1.9 < f4y/R8 < -1.5.
In one embodiment, the picture of the radius of curvature R 9 of the Y direction of the object side of the 5th lens and the 5th lens
The radius of curvature R 10 of the Y direction of side can meet 0.7≤(R9+R10)/(R9-R10) < 1.1.
In one embodiment, the radius of curvature R 10 of the Y direction of the image side surface of the 5th lens, the 4th lens picture
The effective focal length fy of the Y direction of the radius of curvature R 8 and imaging lens of the Y direction of side can meet 0.2 < (R10-R8)/fy
<0.8。
In one embodiment, the Y of airspace T34 on optical axis of the third lens and the 4th lens, imaging lens
The effective focal length fy of axis direction and the half Semi-FOV at maximum field of view angle can meet 0.9 < T34 × fy × Tan (Semi-FOV) <
1.6。
In one embodiment, the first lens to the 5th lens respectively at the center thickness on optical axis summation ∑ CT with
First lens summation ∑ T of airspace of two lens of arbitrary neighborhood on optical axis into the 5th lens can meet 1.5 < ∑ CT/
∑T<2.5。
In one embodiment, the first lens to the 5th lens respectively at the center thickness on optical axis summation ∑ CT with
The effective focal length fy of the Y direction of imaging lens can meet 0.6 < ∑ CT/fy≤0.7.
In one embodiment, center of the effective focal length fy, the third lens of the Y direction of imaging lens on optical axis
The center thickness CT4 of thickness CT3 and the 4th lens on optical axis can meet in following item at least one of: 4.3 < fy/CT3 <
5.5；And 4.5 < fy/CT4 < 7.2.
In one embodiment, on the image side surface of the second lens maximum effective radius the second lens of vertex distance image side
Face and optical axes crosspoint on optical axis distance SAG22, the third lens image side surface on maximum effective radius vertex distance third it is saturating
The image side surface of mirror and optical axes crosspoint on optical axis on the object side of distance SAG32, the 5th lens maximum effective radius vertex away from
Object side from the 5th lens center thickness of distance SAG51, the second lens on optical axis on optical axis with optical axes crosspoint
The center thickness CT5 of center thickness CT3 and the 5th lens on optical axis of CT2, the third lens on optical axis meets in following item
At least one of: 0.7 < SAG22/CT2 < 1.3；-0.6<SAG32/CT3<-0.3；And -3.2 < SAG51/CT5 < -1.6.
In one embodiment, on the object side of the third lens maximum effective radius vertex distance the third lens object side
Face and optical axes crosspoint on optical axis distance SAG31, the third lens image side surface on maximum effective radius vertex distance third it is saturating
The image side surface of mirror and optical axes crosspoint on optical axis on the object side of distance SAG32, the 4th lens maximum effective radius vertex away from
Maximum is effective partly on the image side surface of distance SAG41 and the 4th lens on optical axis with optical axes crosspoint for object side from the 4th lens
The image side surface of the 4th lens of diameter vertex distance with optical axes crosspoint the distance SAG42 on optical axis can meet in following item at least one
: 1.8 < SAG32/SAG31 < 3.5；And 1.6 < SAG42/SAG41 < 2.9.
In one embodiment, the summation ∑ ET and first of the respective edge thickness of the first lens to the 5th lens is saturating
Mirror can meet 0.7 < ∑ ET/ ∑ CT < 1.0 respectively at the summation ∑ CT of the center thickness on optical axis to the 5th lens.
In one embodiment, center thickness CT1, the third lens center on optical axis of first lens on optical axis
Center thickness CT5 on optical axis of thickness CT3, the 5th lens, the edge thickness ET1 of the first lens, the edge of the third lens are thick
The edge thickness ET5 of degree ET3 and the 5th lens can meet at least one in following item: 2.7 < CT1/ET1 < 3.1；1.2<CT3/
ET3<1.5；And 0.2 < CT5/ET5 < 0.7.
In one embodiment, the maximum on the first lens to the property side of the 5th lens, image side surface effectively half
The minimum of maximum effective radius on the maximum SD_max and the first lens to the property side of the 5th lens, image side surface of diameter
SD_min can meet 2.4 < SD_max/SD_min < 2.8.
In one embodiment, center thickness CT1, second lens center on optical axis of first lens on optical axis
The center thickness CT4 and the 5th lens of center thickness CT3, the 4th lens on optical axis of thickness CT2, the third lens on optical axis
Center thickness CT5 on optical axis can meet in following item at least one of: 0.91 < (CT1+CT2)/CT3 < 1.18 and 0.95 <
(CT4+CT5)/CT3 < 1.37 or 0.95 < (CT1+CT5)/CT3 < 1.29 and 0.89 < (CT4+CT5)/CT3 < 1.32.
In one embodiment, airspace T23 on optical axis of the second lens and the third lens, the third lens and
Center thickness CT3 of airspace T34 and the third lens of four lens on optical axis on optical axis can meet 0.9 < (T23+
T34)/CT3<1.5。
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 imaging lens have ultra-thin, large aperture, wide-angle and
At least one beneficial effect such as high image quality.In addition, it is non-rotationally-symmetric aspherical by introducing, to meridian outside the axis of imaging lens
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 imaging lens according to the embodiment of the present application 1；
It is big at different image heights position in first quartile that Fig. 2 shows the RMS spot diameters of the imaging lens of embodiment 1
Small situation；
Fig. 3 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 2；
The RMS spot diameter that Fig. 4 shows the imaging lens of embodiment 2 is big at different image heights position in first quartile
Small situation；
Fig. 5 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 3；
The RMS spot diameter that Fig. 6 shows the imaging lens of embodiment 3 is big at different image heights position in first quartile
Small situation；
Fig. 7 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 4；
The RMS spot diameter that Fig. 8 shows the imaging lens of embodiment 4 is big at different image heights position in first quartile
Small situation；
Fig. 9 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 5；
Figure 10 shows the RMS spot diameters of the imaging lens of embodiment 5 in first quartile at different image heights position
Size cases；
Figure 11 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 6；
Figure 12 shows the RMS spot diameters of the imaging lens of embodiment 6 in first quartile at different image heights position
Size cases；
Figure 13 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 7；
Figure 14 shows the RMS spot diameters of the imaging lens of embodiment 7 in first quartile at different image heights position
Size cases；
Figure 15 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 8；
Figure 16 shows the RMS spot diameters of the imaging lens of embodiment 8 in first quartile at different image heights position
Size cases；
Figure 17 shows the structural schematic diagrams according to the imaging lens of the embodiment of the present application 9；And
Figure 18 shows the RMS spot diameters of the imaging lens of embodiment 9 in first quartile at different image heights position
Size cases.
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.
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.
Imaging lens according to the application illustrative embodiments may include such as five lens with focal power, that is,
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 image side
Sequential can have airspace between each adjacent lens.
In the exemplary embodiment, the first lens can have positive light coke, and object side can be convex surface；Second lens tool
There are positive light coke or negative power, image side surface can be concave surface；The third lens have positive light coke or negative power, image side surface
It can be convex surface；4th lens have positive light coke, and image side surface can be convex surface；5th lens can have negative power, image side
Face can be concave surface.The positive and negative distribution of each power of lens of reasonable disposition imaging lens, can active balance system low order
Aberration, so that system obtains higher image quality.
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.Optionally, the image side surface of the first lens can be non-rotationally-symmetric aspherical.
In the exemplary embodiment, the imaging lens of the application can meet conditional fx/EPD < 2.0 and meet condition
Formula fy/EPD < 2.0, wherein fx is the effective focal length of the X-direction of imaging lens, and fy is having for the Y direction of imaging lens
Focal length is imitated, EPD is the Entry pupil diameters of imaging lens.More specifically, fx and EPD can further meet 1.7 < fx/EPD < 2.0,
Such as 1.74≤fx/EPD≤1.84, and fy and EPD can further meet 1.7 < fy/EPD < 2.0, such as 1.75≤fy/EPD
≤1.95.By meeting conditional fx/EPD < 2.0 and conditional fy/EPD < 2.0, more light can be allowed to enter system,
The brightness for promoting imaging picture, facilitates night scene and takes pictures, while bigger aperture can obtain the more shallow depth of field, for shooting skill
The photo of art can preferably protrude main body.
In the exemplary embodiment, the imaging lens of the application can meet conditional TTL/ImgH < 1.8, wherein TTL
For the first lens object side to imaging lens distance of the imaging surface on optical axis, ImgH be imaging lens imaging surface on have
Imitate the half of pixel region diagonal line length.More specifically, TTL and ImgH can further meet 1.6 < TTL/ImgH < 1.8, for example,
1.63≤TTL/ImgH≤1.78.By meeting conditional TTL/ImgH < 1.8, the length of system can reduce, to meet mirror
The trend of head miniaturization.
In the exemplary embodiment, the imaging lens of the application can meet conditional (fx × TTL)/(EPD × ImgH) <
3.5 and (fy × TTL)/(EPD × ImgH) < 3.5, wherein fx is the effective focal length of the X-direction of imaging lens, and fy is imaging
The effective focal length of the Y direction of camera lens, TTL be the first lens object side to imaging lens imaging surface on optical axis away from
From EPD is the Entry pupil diameters of imaging lens, and ImgH is one of effective pixel area diagonal line length on the imaging surface of imaging lens
Half.More specifically, the imaging lens of the application can further satisfaction conditional 2.8 < (fx × TTL)/(EPD × ImgH) < 3.5,
For example, 2.87≤(fx × TTL)/(EPD × ImgH)≤3.28, and can further satisfaction conditional 2.8 < (fy × TTL)/(EPD
× ImgH) < 3.5, for example, 2.89≤(fy × TTL)/(EPD × ImgH)≤3.47.By meet conditional (fx × TTL)/
(EPD × ImgH) < 3.5 and (fy × TTL)/(EPD × ImgH) < 3.5, is conducive to reduction system overall length, and be conducive to increase
Camera lens light passing amount, to possess higher relative illumination, and then can be very good to be promoted camera lens compared under dark situation at image quality
Amount, and be conducive to improve the luminous flux that each pixel receives in image planes, so as to promote the quality of camera lens well.
In the exemplary embodiment, the imaging lens of the application can meet conditional 0.9 < fy/fx < 1.1, wherein fy
For the effective focal length of the Y direction of imaging lens, fx is the effective focal length of the X-direction of imaging lens.More specifically, the application
Imaging lens can for example meet conditional 0.98≤fy/fx≤1.06.It, can be with by meeting conditional 0.9 < fy/fx < 1.1
The focal length ratio of X-direction and Y-direction is controlled, this is conducive to play the advantage of free form surface non-rotational symmetry and changes free song
So as to improve the image quality of camera lens X-direction and Y-direction, while the TV distortion of camera lens can be improved in the face type in face.
In the exemplary embodiment, the imaging lens of the application can meet conditional 0.7 < f1y/fy < 1.3, wherein
F1y is the focal length in the Y direction of the first lens, and fy is the effective focal length of the Y direction of imaging lens.More specifically, this Shen
Imaging lens please can for example meet conditional 0.76≤f1y/fy≤1.23.By meeting conditional 0.7 < f1y/fy < 1.3,
In one aspect, the first lens are made to have shared certain focal power, to be conducive to reduce the pressure that other lenses share focal power
Power, and in another aspect, the focal power that the first lens are shared is reduced, the molding of the first lens is conducive to.
In the exemplary embodiment, the imaging lens of the application can meet conditional -1.9 < f4y/R8 < -1.5, wherein
F4y is the focal length in the Y direction of the 4th lens, and R8 is the radius of curvature of the Y direction of the image side surface of the 4th lens.More specifically
The imaging lens on ground, the application can for example meet conditional -1.84≤f4y/R8≤- 1.53.By meet conditional -1.9 <
F4y/R8 < -1.5 is conducive to the ghost image for controlling the 4th lens.
In the exemplary embodiment, the imaging lens of the application can meet conditional 0.7≤(R9+R10)/(R9-R10)
< 1.1, wherein R9 is the radius of curvature of the Y direction of the object side of the 5th lens, and R10 is the Y-axis of the image side surface of the 5th lens
The radius of curvature in direction.More specifically, the imaging lens of the application can for example meet conditional 0.7≤(R9+R10)/(R9-
R10)≤1.02.By meeting conditional 0.7≤(R9+R10)/(R9-R10) < 1.1, the 5th lens can be advantageously reduced
Power value makes it have better light trend, the promotion of system image quality is not only does this facilitate, also to the opposite of lifting system
Illumination also has great help.In addition, this can make the 5th lens keep good processing technology, to promote lens group
Practicability.
In the exemplary embodiment, the imaging lens of the application can meet conditional 0.2 < (R10-R8)/fy < 0.8,
In, R10 is the radius of curvature of the Y direction of the image side surface of the 5th lens, and R8 is the song of the Y direction of the image side surface of the 4th lens
Rate radius, fy are the effective focal length of the Y direction of imaging lens.More specifically, the imaging lens of the application can for example meet item
Part formula 0.26≤(R10-R8)/fy≤0.71.By meeting conditional 0.2 < (R10-R8)/fy < 0.8, be conducive to the 4th lens
Image side surface and the 5th lens image side surface radius of curvature constraint, make aberration of the light after the 4th lens and the 5th lens
It is smaller.In addition, also facilitating ensuring that system focal length, the optical property of system is improved.
In the exemplary embodiment, the imaging lens of the application can meet 0.9 < T34 of conditional × fy × Tan (Semi-
FOV) < 1.6, wherein T34 is the airspace of the third lens and the 4th lens on optical axis, and fy is the Y direction of imaging lens
Effective focal length, Semi-FOV be maximum field of view angle half.More specifically, the imaging lens of the application can for example meet condition
0.92≤T34 of formula × fy × Tan (Semi-FOV)≤1.59.By meeting 0.9 < T34 of conditional × fy × Tan (Semi-FOV)
< 1.6, the sensibility of the third lens and the 4th lens spacing on optical axis is advantageously reduced, to improve the yield of system.This
Outside, fy and Semi-FOV is controlled, can make that system field angle is smaller, focal length is larger, is conducive to correct optical aberration, improve
System imaging quality.
In the exemplary embodiment, the imaging lens of the application can meet conditional 1.5 < ∑ CT/ ∑ T < 2.5, wherein
∑ CT is summation of the first lens to the 5th lens respectively at the center thickness on optical axis, and ∑ T is the first lens to the 5th lens
The summation of airspace of middle two lens of arbitrary neighborhood on optical axis.More specifically, the imaging lens of the application can for example meet
Conditional 1.7≤∑ CT/ ∑ T≤2.46.By meeting conditional 1.7 < ∑ CT/ ∑ T < 2.5, it can control lens in camera lens
The airspace between center thickness and lens on optical axis, to be conducive to the miniaturization of system.In addition, also helping control
The layout of lens so as to the tolerance during reasonable distribution lens arrangement, and then effectively improves the craftsmanship of camera lens.
In the exemplary embodiment, the imaging lens of the application can meet 0.6 < ∑ of conditional CT/fy≤0.7, wherein
∑ CT is summation of the first lens to the 5th lens respectively at the center thickness on optical axis, and fy is the Y direction of imaging lens
Effective focal length.More specifically, the imaging lens of the application can for example meet 0.62≤∑ of conditional CT/fy≤0.7.Pass through satisfaction
0.6 < ∑ of conditional CT/fy≤0.7 can rationally control the ratio of the center thickness summation and system focal length on optical axis of lens
Value, this not only contributes to the miniaturization of system, also helps ghost image risk caused by avoiding lens itself from reflecting.
In the exemplary embodiment, the imaging lens of the application at least one of can satisfy the following conditional expression: 1. 4.3
<fy/CT3<5.5；2. 4.5 < fy/CT4 < 7.2, wherein fy is the effective focal length of the Y direction of imaging lens, and CT3 is that third is saturating
Center thickness of the mirror on optical axis, CT4 are center thickness of the 4th lens on optical axis.More specifically, the imaging lens of the application
Head can for example, at least satisfy the following conditional expression in 1. 4.36≤fy/CT3≤5.46；②4.56≤fy/CT4≤7.15.
Pass through one at least satisfying the following conditional expression: 1. 4.3 < fy/CT3 < 5.5；2. 4.5 < fy/CT4 < 7.2 can rationally control
The ratio of the center thickness of center thickness or the 4th lens on optical axis of system focal length and the third lens on optical axis, to have
It is distributed conducive to the third lens of system and the 4th power of lens, it, can school well in the case where arranging in pairs or groups remaining lens
Positive system aberration.Further, it is also possible to be effectively reduced the size of lens group.
In the exemplary embodiment, the imaging lens of the application at least one of can satisfy the following conditional expression: 1. 0.7
<SAG22/CT2<1.3；②-0.6<SAG32/CT3<-0.3；3. -3.2 < SAG51/CT5 < -1.6, wherein SAG22 is second saturating
The image side surface of maximum effective radius the second lens of vertex distance is at a distance from optical axes crosspoint is on optical axis on the image side surface of mirror,
SAG32 is the image side surface and optical axes crosspoint of maximum effective radius vertex distance the third lens on the image side surface of the third lens in optical axis
On distance, SAG51 is the object side of maximum the 5th lens of effective radius vertex distance and optical axis on the object side of the 5th lens
Distance of the intersection point on optical axis, CT2 be center thickness of second lens on optical axis, CT3 be the third lens on optical axis in
Heart thickness, CT5 are center thickness of the 5th lens on optical axis.More specifically, the imaging lens of the application can for example, at least expire
One be enough in lower conditional: 1. 0.75≤SAG22/CT2≤1.22；②-0.57≤SAG32/CT3≤-0.38；③-
3.18≤SAG51/CT5≤-1.64.Pass through one at least satisfying the following conditional expression: 1. 0.7 < SAG22/CT2 < 1.3；②-
0.6<SAG32/CT3<-0.3；3. -3.2 < SAG51/CT5 < -1.6 helps rationally to control the second lens, the third lens and
The shape of five lens, on the one hand, be conducive to control light trend, keep the aberration of system smaller, improves system imaging quality, it is another
Aspect is conducive to the moulding process of eyeglass, avoids the difficulty in processing technology.
In the exemplary embodiment, the imaging lens of the application at least one of can satisfy the following conditional expression: 1. 1.8
<SAG32/SAG31<3.5；2. 1.6 < SAG42/SAG41 < 2.9, wherein SAG31 is maximum effective on the object side of the third lens
At a distance from optical axes crosspoint is on optical axis, SAG32 is the image side surface of the third lens for the object side of radius vertex distance the third lens
For the image side surface of upper maximum effective radius vertex distance the third lens at a distance from optical axes crosspoint is on optical axis, SAG41 is the 4th saturating
The object side of maximum the 4th lens of effective radius vertex distance is at a distance from optical axes crosspoint is on optical axis on the object side of mirror,
SAG42 is the image side surface of the 4th lens of maximum effective radius vertex distance and optical axes crosspoint on the image side surface of the 4th lens in optical axis
On distance.More specifically, the imaging lens of the application can for example, at least satisfy the following conditional expression in one: 1. 1.84≤
SAG32/SAG31≤3.42；②1.64≤SAG42/SAG41≤2.84.Pass through one at least satisfying the following conditional expression: 1.
1.8<SAG32/SAG31<3.5；2. 1.6 < SAG42/SAG41 < 2.9 help rationally to control the third lens and the 4th lens
Shape, on the one hand, the light correction for being conducive to peripheral field mainly corrects the distortion of system.On the other hand, it can control and be
The layout of system, thus the assembly between being conducive to eyeglass.
In the exemplary embodiment, the imaging lens of the application can meet conditional: 0.7 < ∑ ET/ ∑ CT < 1.0,
In, ∑ ET is the summation of the respective edge thickness of the first lens to the 5th lens, and ∑ CT is the first lens to the 5th lens point
Not in the summation of the center thickness on optical axis.More specifically, the imaging lens of the application can for example meet conditional: 0.78≤∑
ET/∑CT≤0.92.By meeting conditional: 0.7 < ∑ ET/ ∑ CT < 1.0 can rationally control edge thickness and center thickness
Ratio, on the one hand, can to avoid eyeglass thin and thick than excessive, be conducive to the molding of eyeglass, on the other hand, can be effective
The light path for controlling different visual fields, is conducive to the image quality for balancing each visual field, avoids ghost image and veiling glare risk in addition, also helping.
In the exemplary embodiment, the imaging lens of the application at least one of can satisfy the following conditional expression: 1. 2.7
<CT1/ET1<3.1；②1.2<CT3/ET3<1.5；3. 0.2 < CT5/ET5 < 0.7, wherein CT1 is the first lens on optical axis
Center thickness, CT3 are center thickness of the third lens on optical axis, and CT5 is center thickness of the 5th lens on optical axis, ET1
For the edge thickness of the first lens, ET3 is the edge thickness of the third lens, and ET5 is the edge thickness of the 5th lens.More specifically
Ground, the imaging lens of the application can for example, at least satisfy the following conditional expression in one: 1. 2.72≤CT1/ET1≤3.06；②
1.21≤CT3/ET3≤1.48；③0.27≤CT5/ET5≤0.65.Pass through one at least satisfying the following conditional expression: 1.
2.7<CT1/ET1<3.1；②1.2<CT3/ET3<1.5；3. 0.2 < CT5/ET5 < 0.7, can control the center thickness of lens with
The ratio of edge thickness can control the focal length of lens, in the case where meeting above-mentioned condition, the light focus of reasonable distribution system
Degree avoids mirror surface from being totally reflected caused ghost image to advantageously ensure that the optical property of system in addition, also helping.
In the exemplary embodiment, the imaging lens of the application can meet conditional: 2.4 < SD_max/SD_min <
2.8, wherein SD_max is the very big of the maximum effective radius on the first lens to the property side of the 5th lens, image side surface
Value；SD_min is the minimum of maximum effective radius on the first lens to the property side of the 5th lens, image side surface.More specifically
The imaging lens on ground, the application can for example meet conditional: 2.48≤SD_max/SD_min≤2.76.By meeting conditional:
2.4<SD_max/SD_min<2.8 as SD_max/SD_min>2.4, can control the light focus of each eyeglass on the one hand
Degree, to avoid the focal power between eyeglass close, the image quality for being conducive to be promoted camera lens works as SD_max/SD_ on the other hand
When min < 2.8, the offset between eyeglass and eyeglass can control, so as to reduce the use of metal spacer ring, it is vertical to increase group
When precision, and then be conducive to improve camera lens yield.
In the exemplary embodiment, the imaging lens of the application at least one of can satisfy the following conditional expression: 1.
0.91 < (CT1+CT2)/CT3 < 1.18 and 0.95 < (CT4+CT5)/CT3 < 1.37；2. 0.95 < (CT1+CT5)/CT3 < 1.29 and
0.89 < (CT4+CT5)/CT3 < 1.32, wherein CT1 is center thickness of first lens on optical axis, and CT2 is that the second lens exist
Center thickness on optical axis, CT3 are center thickness of the third lens on optical axis, and CT4 is center of the 4th lens on optical axis
Thickness, CT5 are center thickness of the 5th lens on optical axis.By at least one of satisfying the following conditional expression: 1. 0.91 <
(CT1+CT2)/CT3 < 1.18 and 0.95 < (CT4+CT5)/CT3 < 1.37；2. 0.95 < (CT1+CT5)/CT3 < 1.29 and 0.89 <
(CT4+CT5)/CT3 < 1.32, can in reasonable distribution system different optical elements thickness, so as to improve the longitudinal direction of system
Spherical aberration reduces the amount of distortion of system, and then improves interior visual field ghost image as caused by light reflection.
In the exemplary embodiment, the imaging lens of the application can meet conditional: 0.9 < (T23+T34)/CT3 <
1.5, wherein T23 is the airspace of the second lens and the third lens on optical axis, and T34 is that the third lens and the 4th lens exist
Airspace on optical axis, CT3 are center thickness of the third lens on optical axis.More specifically, the imaging lens of the application can
Such as meet conditional: 0.98≤(T23+T34)/CT3≤1.48.By meeting conditional: 0.9 < (T23+T34)/CT3 <
1.5, be conducive to the miniaturization of system, and the image side surface bring ghost image risk of the third lens can be reduced, while cooperating second
Lens and the 4th lens, can be effectively reduced the color difference of system, so as to improve the performance of system.
In the exemplary embodiment, above-mentioned imaging lens may also include diaphragm, to promote the image quality of camera lens.It is optional
Ground, diaphragm may be provided between object side and the first lens.
Optionally, above-mentioned imaging lens may also include the optical filter for correcting color error ratio and/or be located at 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 imaging lens of the above embodiment of the application.
By each power of lens of reasonable distribution, face type, each lens center thickness and each lens between axis on spacing etc., can
The volume for effectively reducing camera lens, the machinability for reducing the susceptibility of camera lens and improving camera lens, so that imaging lens are more advantageous
In producing and processing and be applicable to portable electronic product.In addition, it is non-rotationally-symmetric aspherical by introducing, to imaging lens
The outer meridian aberration of the axis of head and sagitta of arc aberration are corrected, and can be obtained further image quality and be 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 imaging lens can be changed, to obtain each result and advantage described in this specification.Though for example,
It is so described by taking five lens as an example in embodiments, but the imaging lens are not limited to include five lens.If
It needs, which may also include the lens of other quantity.
The specific embodiment for being applicable to the 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 imaging lens of the embodiment of the present application 1.Fig. 1 is shown according to the application reality
Apply the structural schematic diagram of the imaging lens of example 1.
As shown in Figure 1, sequentially being wrapped along optical axis by object side to image side according to the imaging lens of the application illustrative embodiments
Include: diaphragm STO, the first lens E1, 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
Concave surface, image side surface S6 are convex surface.4th lens E4 has positive light coke, and object side S7 is convex 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 shows the surface type, radius of curvature X, radius of curvature Y, thickness of each lens of the imaging lens of embodiment 1
Degree, 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, other than the face image side surface S2 of the first lens E1, the first lens E1, the second lens E2, third are saturating
The object side of any one lens and image side surface are the aspheric of rotational symmetry in mirror E3, the 4th lens E4 and the 5th lens E5
Face.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, 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, S3-S104、A6、A8、A10、A12、A14、A16、A18And A20。
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 2.01E-01 | -1.57E-02 | 2.42E-03 | -1.19E-03 | -4.41E-05 | -1.27E-04 | -4.28E-05 | -1.26E-05 | -1.04E-05 |
| S3 | -1.39E-02 | 1.21E-02 | -3.26E-03 | 6.31E-04 | -4.47E-04 | -6.10E-05 | -2.66E-05 | -1.57E-05 | 4.94E-06 |
| S4 | 1.30E-02 | 1.90E-02 | 6.38E-04 | 1.47E-03 | 5.54E-05 | 6.97E-06 | -2.69E-05 | -2.56E-05 | -7.31E-06 |
| S5 | -1.19E-01 | -9.90E-04 | 3.37E-03 | 2.35E-03 | 1.02E-03 | 3.77E-04 | 1.17E-04 | 2.70E-05 | 2.75E-06 |
| S6 | -3.05E-01 | 1.24E-02 | 6.24E-03 | 2.94E-03 | 1.07E-03 | 3.42E-04 | 6.99E-05 | 9.72E-06 | -9.16E-06 |
| S7 | -4.02E-01 | -3.10E-02 | 2.65E-02 | 4.13E-03 | 6.74E-04 | 1.48E-04 | -4.10E-04 | -4.79E-05 | -7.70E-05 |
| S8 | 1.72E-02 | 4.62E-02 | -9.71E-04 | -1.05E-02 | 1.85E-03 | 1.89E-03 | -6.83E-04 | 1.41E-04 | -4.86E-05 |
| S9 | -5.18E-01 | 3.59E-01 | -1.30E-01 | 2.10E-02 | 3.83E-03 | -2.18E-03 | -3.15E-04 | 3.34E-04 | -5.03E-05 |
| S10 | -1.21E+00 | 2.24E-01 | -5.21E-02 | 2.76E-02 | -1.44E-02 | 7.43E-04 | -1.15E-03 | 6.15E-04 | 1.11E-04 |
Table 2
It is non-by table 1 it can also be seen that the image side surface S2 of the first lens E1 is non-rotationally-symmetric aspherical (that is, the face AAS)
The aspherical face type of rotational symmetry is available but is not limited to following non-rotationally-symmetric aspherical formula and is defined:
*((1-BP)*X2+(1+BP)*Y2)3+CR*((1-CP)*X2+(1+CP)*Y2)4+DR
*((1-DP)*X2+(1+DP)*Y2)5+ER*((1-EP)*X2+(1+EP)*Y2)6+FR
*((1-FP)*X2+(1+FP)*Y2)7+GR*((1-GP)*X2+(1+GP)*Y2)8+HR
*((1-HP)*X2+(1+HP)*Y2)9+JR*((1-JP)*X2+(1+JP)*Y2)10(2)
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 give the AR, BR that can be used for the non-rotationally-symmetric aspherical S13 and S14 in embodiment 1, CR, DR,
ER, FR, GR, HR, JR coefficient and AP, BP, CP, DP, EP, FP, GP, HP, JP coefficient.
| The face AAS | FR | FP | GR | GP | HR | HP | JR | JP |
| S2 | -1.23E+00 | 7.10E-04 | 9.51E-01 | -5.05E-04 | -3.70E-01 | -2.28E-04 | 5.29E-02 | 6.02E-03 |
Table 3
Table 4 gives the effective focal length of the effective focal length f1y to f5y of each lens in embodiment 1, imaging lens X-direction
Fx, the effective focal length fy of imaging lens Y direction, imaging lens optics total length TTL (that is, from the object side of the first lens E1
Distance of the face S1 to imaging surface S13 on optical axis), the half ImgH of effective pixel area diagonal line length, maximum on imaging surface S13
The Entry pupil diameters EPD of angle of half field-of view Semi-FOV and imaging lens.
| f1y(mm) | 2.96 | fx(mm) | 3.84 |
| f2y(mm) | -5.23 | fy(mm) | 3.77 |
| f3y(mm) | 18.81 | TTL(mm) | 4.81 |
| f4y(mm) | 2.11 | ImgH(mm) | 2.91 |
| f5y(mm) | -1.65 | Semi-FOV(°) | 37.0 |
| EPD(mm) | 2.10 |
Table 4
Imaging lens in embodiment 1 meet:
Fx/EPD=1.83, wherein fx is the effective focal length of the X-direction of imaging lens, and EPD is the entrance pupil of imaging lens
Diameter；
Fy/EPD=1.80, wherein fy is the effective focal length of the Y direction of imaging lens, and EPD is the entrance pupil of imaging lens
Diameter；
TTL/ImgH=1.65, wherein TTL is that the imaging surface S13 of object side S1 to the imaging lens of the first lens E1 exists
Distance on optical axis, ImgH are the half of effective pixel area diagonal line length on the imaging surface S13 of imaging lens；
(fx × TTL)/(EPD × ImgH)=3.02, wherein fx is the effective focal length of the X-direction of imaging lens, TTL
For the first lens E1 object side S1 to distance of the imaging surface S13 on optical axis of imaging lens, EPD is the entrance pupil of imaging lens
Diameter, ImgH are the half of effective pixel area diagonal line length on the imaging surface S13 of imaging lens；
(fy × TTL)/(EPD × ImgH)=2.97, wherein fy is the effective focal length of the Y direction of imaging lens, TTL
For the first lens E1 object side S1 to distance of the imaging surface S13 on optical axis of imaging lens, EPD is the entrance pupil of imaging lens
Diameter, ImgH are the half of effective pixel area diagonal line length on the imaging surface S13 of imaging lens；
Fy/fx=0.98, wherein fy is the effective focal length of the Y direction of imaging lens, and fx is the X-axis side of imaging lens
To effective focal length；
F1y/fy=0.79, wherein f1y is the focal length in the Y direction of the first lens E1, and fy is the Y-axis of imaging lens
The effective focal length in direction；
F4y/R8=-1.65, wherein f4y is the focal length in the Y direction of the 4th lens E4, and R8 is the 4th lens E4's
The radius of curvature of the Y direction of image side surface S8；
(R9+R10)/(R9-R10)=0.70, wherein R9 is the curvature of the Y direction of the object side S9 of the 5th lens E5
Radius, R10 are the radius of curvature of the Y direction of the image side surface S10 of the 5th lens E5；
(R10-R8)/fy=0.62, wherein R10 is the radius of curvature of the Y direction of the image side surface S10 of the 5th lens E5,
R8 is the radius of curvature of the Y direction of the image side surface S8 of the 4th lens E4, and fy is the effective focal length of the Y direction of imaging lens；
T34 × fy × Tan (Semi-FOV)=1.45, wherein T34 is the third lens E3 and the 4th lens E4 on optical axis
Airspace, fy be imaging lens Y direction effective focal length, Semi-FOV be maximum field of view angle half；
∑ CT/ ∑ T=1.90, wherein ∑ CT is the first lens E1 to the 5th lens E5 thick respectively at the center on optical axis
The summation of degree, ∑ T are the summation of the airspace of two lens of arbitrary neighborhood on optical axis into the 5th lens E5 the first lens E1.
∑ CT/fy=0.65, wherein ∑ CT is the first lens E1 to the 5th lens E5 respectively at the center thickness on optical axis
Summation, fy be imaging lens Y direction effective focal length；
1. fy/CT3=4.62；2. fy/CT4=6.19, wherein fy is the effective focal length of the Y direction of imaging lens,
CT3 is center thickness of the third lens E3 on optical axis, and CT4 is center thickness of the 4th lens E4 on optical axis；
1. SAG22/CT2=1.17；2. SAG32/CT3=-0.50；3. SAG51/CT5=-1.64, wherein SAG22 is
The image side surface S4 of maximum effective radius the second lens of vertex distance E2 and optical axes crosspoint are in light on the image side surface S4 of second lens E2
Distance on axis, SAG32 are the image side of maximum effective radius vertex distance the third lens E3 on the image side surface S6 of the third lens E3
Face S6 at a distance from optical axes crosspoint is on optical axis, SAG51 be the upper maximum effective radius vertex the object side S9 of the 5th lens E5 away from
For object side S9 from the 5th lens E5 at a distance from optical axes crosspoint is on optical axis, CT2 is center of the second lens E2 on optical axis
Thickness, CT3 are center thickness of the third lens E3 on optical axis, and CT5 is center thickness of the 5th lens E5 on optical axis；
1. SAG32/SAG31=2.35；2. SAG42/SAG41=1.64, wherein SAG31 is the object side of the third lens E3
The object side S5 of maximum effective radius vertex distance the third lens E3 is at a distance from optical axes crosspoint is on optical axis on the S5 of face, SAG32
Exist for the image side surface S6 and optical axes crosspoint of effective radius vertex distance the third lens E3 maximum on the image side surface S6 of the third lens E3
Distance on optical axis, SAG41 are the object of maximum the 4th lens E4 of effective radius vertex distance on the object side S7 of the 4th lens E4
For side S7 at a distance from optical axes crosspoint is on optical axis, SAG42 is maximum effective radius vertex on the image side surface S8 of the 4th lens E4
The image side surface S8 of the 4th lens E4 of distance is at a distance from optical axes crosspoint is on optical axis；
∑ ET/ ∑ CT=0.78, wherein ∑ ET is the total of the respective edge thickness of the first lens E1 to the 5th lens E5
It is summation of the first lens E1 to the 5th lens E5 respectively at the center thickness on optical axis with, ∑ CT；
1. CT1/ET1=2.97；2. CT3/ET3=1.40；3. CT5/ET5=0.65, wherein CT1 is the first lens E1
Center thickness on optical axis, CT3 are center thickness of the third lens E3 on optical axis, and CT5 is the 5th lens E5 on optical axis
Center thickness, ET1 be the first lens E1 edge thickness, ET3 be the third lens E3 edge thickness, ET5 be the 5th lens
The edge thickness of E5；
SD_max/SD_min=2.76, wherein SD_max be the first lens E1 to the 5th lens E5 property side,
The maximum of maximum effective radius on image side surface；SD_min be the first lens E1 to the 5th lens E5 property side, as
The minimum of maximum effective radius on side；
1. CT3:(CT1+CT2): (CT4+CT5)=1.00:0.99:1.03；
2. CT3:(CT1+CT5): (CT2+CT4)=1.00:1.02:1.00, wherein CT1 is the first lens E1 in optical axis
On center thickness, CT2 be center thickness of the second lens E2 on optical axis, CT3 be center of the third lens E3 on optical axis
Thickness, CT4 are center thickness of the 4th lens E4 on optical axis, and CT5 is center thickness of the 5th lens E5 on optical axis；
(T23+T34)/CT3=1.21, wherein T23 is between air of the second lens E2 and the third lens E3 on optical axis
Every, T34 be the airspace of the third lens E3 and the 4th lens E4 on optical axis, CT3 be the third lens E3 on optical axis in
Heart thickness；
It is big at different image heights position in first quartile that Fig. 2 shows the RMS spot diameters of the imaging lens of embodiment 1
Small situation.As can be seen from FIG. 2, 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 imaging lens of the embodiment of the present application 2.Fig. 3 is shown according to the application reality
Apply the structural schematic diagram of the imaging lens of example 2.
As shown in figure 3, sequentially being wrapped along optical axis by object side to image side according to the imaging lens of the application illustrative embodiments
Include: diaphragm STO, the first lens E1, 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 concave 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 positive light coke, and object side S7 is convex 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 5 shows the surface type, radius of curvature X, radius of curvature Y, thickness of each lens of the imaging lens of embodiment 2
Degree, 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
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 5, other than the object side face S3 of the second lens E2, the first lens E1, the second lens E2, third are saturating
The object side of any one lens and image side surface are the aspheric of rotational symmetry in mirror E3, the 4th lens E4 and the 5th lens E5
Face.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, inverse that paraxial curvature c is upper 5 mean curvature radius R of table)；K be circular cone coefficient (
It has been provided in table 5)；Ai is the correction factor of aspherical i-th-th rank.The following table 6 give can be used for it is each aspherical in embodiment 2
The high-order coefficient A of mirror surface S1-S2, S4-S104、A6、A8、A10、A12、A14、A16、A18And A20。
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 2.06E-01 | -4.20E-02 | 2.46E-02 | -1.43E-01 | -3.05E-01 | -4.05E-01 | -1.01E-01 | -5.72E-01 | -1.01E+00 |
| S2 | -1.60E-02 | -1.19E-04 | 1.97E-02 | -5.92E-03 | 1.15E-02 | -6.60E-02 | 4.63E-02 | 3.75E-01 | 2.21E-01 |
| S4 | 1.89E-03 | -3.16E-03 | 1.38E-03 | 6.21E-05 | 7.30E-03 | 2.38E-02 | -1.07E-02 | -1.23E-01 | -6.08E-02 |
| S5 | -1.40E-03 | -2.62E-04 | 1.71E-03 | 9.06E-04 | 2.76E-03 | 1.02E-03 | -7.66E-03 | 1.67E-02 | 3.52E-02 |
| S6 | -7.50E-05 | -1.31E-04 | 3.17E-04 | 4.03E-04 | 1.05E-03 | -1.77E-04 | -8.70E-04 | 3.59E-03 | -8.89E-03 |
| S7 | -1.31E-04 | -4.83E-05 | 7.56E-05 | 1.69E-04 | 2.22E-04 | -1.64E-04 | 1.85E-03 | -1.42E-03 | 2.65E-03 |
| S8 | -1.69E-05 | 5.61E-06 | 9.07E-06 | 3.89E-05 | 4.30E-05 | 6.58E-04 | -3.76E-04 | -1.82E-04 | -1.10E-03 |
| S9 | -1.02E-05 | -1.08E-06 | -1.97E-05 | 1.34E-05 | -1.54E-05 | 6.65E-04 | 9.15E-04 | 2.34E-04 | 1.88E-04 |
| S10 | -2.43E-06 | 8.49E-06 | -5.39E-06 | -2.45E-06 | -9.82E-06 | 2.10E-04 | -4.25E-04 | -6.18E-05 | -1.69E-04 |
Table 6
It is non-by table 5 it can also be seen that the object side S3 of the second lens E2 is non-rotationally-symmetric aspherical (that is, the face AAS)
The aspherical face type of rotational symmetry is available but is not limited to following non-rotationally-symmetric aspherical formula and is defined:
*((1-BP)*X2+(1+BP)*Y2)3+CR*((1-CP)*X2+(1+CP)*Y2)4+DR
*((1-DP)*X2+(1+DP)*Y2)5+ER*((1-EP)*X2+(1+EP)*Y2)6+FR
*((1-FP)*X2+(1+FP)*Y2)7+GR*((1-GP)*X2+(1+GP)*Y2)8+HR
*((1-HP)*X2+(1+HP)*Y2)9+JR*((1-JP)*X2+(1+JP)*Y2)10(2)
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 7 give the AR, BR that can be used for the non-rotationally-symmetric aspherical S13 and S14 in embodiment 2, CR, DR,
ER, FR, GR, HR, JR coefficient and AP, BP, CP, DP, EP, FP, GP, HP, JP coefficient.
| The face AAS | FR | FP | GR | GP | HR | HR | JR | JP |
| S3 | -7.55E+00 | 1.79E-04 | 6.05E+00 | -8.72E-05 | -2.72E+00 | -1.32E-04 | 5.21E-01 | 4.58E-04 |
Table 7
Table 8 gives the effective focal length of the effective focal length fly to f5y of each lens in embodiment 2, imaging lens X-direction
Fx, the effective focal length fy of imaging lens Y direction, imaging lens optics total length TTL (that is, from the object side of the first lens E1
Distance of the face S1 to imaging surface S13 on optical axis), the half ImgH of effective pixel area diagonal line length, maximum on imaging surface S13
The Entry pupil diameters EPD of angle of half field-of view Semi-FOV and imaging lens.
Table 8
The RMS spot diameter that Fig. 4 shows the imaging lens of embodiment 2 is big at different image heights position in first quartile
Small situation.As can be seen from FIG. 4, imaging lens given by embodiment 2 can be realized good image quality.
Embodiment 3
Referring to Fig. 5 and Fig. 6 description according to the imaging lens of the embodiment of the present application 3.Fig. 5 is shown according to the application reality
Apply the structural schematic diagram of the imaging lens of example 3.
As shown in figure 5, sequentially being wrapped along optical axis by object side to image side according to the imaging lens of the application illustrative embodiments
Include: diaphragm STO, the first lens E1, 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 concave 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 convex surface.4th lens E4 has positive light coke, and object side S7 is convex 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 9 shows the surface type, radius of curvature X, radius of curvature Y, thickness of each lens of the imaging lens of embodiment 3
Degree, 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
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 9, other than the object side face S5 of the third lens E3, the first lens E1, the second lens E2, third are saturating
The object side of any one lens and image side surface are the aspheric of rotational symmetry in mirror E3, the 4th lens E4 and the 5th lens E5
Face.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, inverse that paraxial curvature c is upper 9 mean curvature radius R of table)；K be circular cone coefficient (
It has been provided in table 9)；Ai is the correction factor of aspherical i-th-th rank.The following table 10 give can be used for it is each aspherical in embodiment 3
The high-order coefficient A of mirror surface S1-S4, S6-S104、A6、A8、A10、A12、A14、A16、A18And A20。
Table 10
It is non-by table 9 it can also be seen that the object side S5 of the third lens E3 is non-rotationally-symmetric aspherical (that is, the face AAS)
The aspherical face type of rotational symmetry is available but is not limited to following non-rotationally-symmetric aspherical formula and is defined:
*((1-BP)*X2+(1+BP)*Y2)3+CR*((1-CP)*X2+(1+CP)*Y2)4+DR
*((1-DP)*X2+(1+DP)*Y2)5+ER*((1-EP)*X2+(1+EP)*Y2)6+FR
*((1-FP)*X2+(1+FP)*Y2)7+GR*((1-GP)*X2+(1+GP)*Y2)8+HR
*((1-HP)*X2+(1+HP)*Y2)9+JR*((1-JP)*X2+(1+JP)*Y2)10(2)
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 11 give the AR, BR that can be used for the non-rotationally-symmetric aspherical S13 and S14 in embodiment 3, CR, DR,
ER, FR, GR, HR, JR coefficient and AP, BP, CP, DP, EP, FP, GP, HP, JP coefficient.
| The face AAS | FR | FP | GR | GP | HR | HR | JR | JP |
| S3 | -7.55E+00 | 1.79E-04 | 6.05E+00 | -8.72E-05 | -2.72E+00 | -1.32E-04 | 5.21E-01 | 4.58E-04 |
Table 11
Table 12 gives the effective focal length of the effective focal length f1y to f5y of each lens in embodiment 3, imaging lens X-direction
Fx, the effective focal length fy of imaging lens Y direction, imaging lens optics total length TTL (that is, from the object side of the first lens E1
Distance of the face S1 to imaging surface S13 on optical axis), the half ImgH of effective pixel area diagonal line length, maximum on imaging surface S13
The Entry pupil diameters EPD of angle of half field-of view Semi-FOV and imaging lens.
| f1y(mm) | 3.38 | fx(mm) | 3.82 |
| f2y(mm) | -6.45 | fy(mm) | 3.82 |
| f3y(mm) | 16.05 | TTL(mm) | 4.81 |
| f4y(mm) | 2.19 | ImgH(mm) | 2.91 |
| f5y(mm) | -1.71 | Semi-FOV(°) | 37.0 |
| EPD(mm) | 2.13 |
Table 12
The RMS spot diameter that Fig. 6 shows the imaging lens of embodiment 3 is big at different image heights position in first quartile
Small situation.As can be seen from FIG. 6, imaging lens given by embodiment 3 can be realized good image quality.
Embodiment 4
Referring to Fig. 7 and Fig. 8 description according to the imaging lens of the embodiment of the present application 4.Fig. 7 is shown according to the application reality
Apply the structural schematic diagram of the imaging lens of example 4.
As shown in fig. 7, sequentially being wrapped along optical axis by object side to image side according to the imaging lens of the application illustrative embodiments
Include: diaphragm STO, the first lens E1, 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 concave 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
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 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 13 shows the surface type, radius of curvature X, radius of curvature Y, thickness of each lens of the imaging lens of embodiment 4
Degree, 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 13
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 13, other than the object side face S7 of the 4th lens E4, the first lens E1, the second lens E2, third
The object side of any one lens and image side surface are the aspheric of rotational symmetry in lens E3, the 4th lens E4 and the 5th lens E5
Face.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, inverse that paraxial curvature c is upper 13 mean curvature radius R of table)；K be circular cone coefficient (
It has been provided in table 13)；Ai is the correction factor of aspherical i-th-th rank.The following table 14, which gives, can be used for each aspheric in embodiment 4
The high-order coefficient A of face mirror surface S1-S6, S8-S104、A6、A8、A10、A12、A14、A16、A18And A20。
Table 14
By table 13 it can also be seen that the object side S7 of the 4th lens E4 is non-rotationally-symmetric aspherical (that is, the face AAS),
Non-rotationally-symmetric aspherical face type is available but is not limited to following non-rotationally-symmetric aspherical formula and is defined:
*((1-BP)*X2+(1+BP)*Y2)3+CR*((1-CP)*X2+(1+CP)*Y2)4+DR
*((1-DP)*X2+(1+DP)*Y2)5+ER*((1-EP)*X2+(1+EP)*Y2)6+FR
*((1-FP)*X2+(1+FP)*Y2)7+GR*((1-GP)*X2+(1+GP)*Y2)3+HR
*((1-HP)*X2+(1+HP)*Y2)9+JR*((1-JP)*X2+(1+JP)*Y2)10 (2)
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 15 give the AR, BR that can be used for the non-rotationally-symmetric aspherical S13 and S14 in embodiment 4, CR, DR,
ER, FR, GR, HR, JR coefficient and AP, BP, CP, DP, EP, FP, GP, HP, JP coefficient.
| The face AAS | AR | AP | BR | BP | CR | CP | DR | DP | ER | EP |
| S7 | 1.88E-02 | 4.71E-03 | -5.68E-02 | 1.65E-03 | 2.70E-02 | 1.73E-03 | -4.61E-02 | 2.54E-04 | 6.18E-02 | 6.69E-06 |
| The face AAS | FR | FP | GR | GP | HR | HP | JR | JP |
| S7 | -4.68E-02 | -1.41E-05 | 1.98E-02 | -2.67E-06 | -4.26E-03 | 1.84E-05 | 3.64E-04 | 5.07E-05 |
Table 15
Table 16 gives the effective focal length of the effective focal length f1y to f5y of each lens in embodiment 4, imaging lens X-direction
Fx, the effective focal length fy of imaging lens Y direction, imaging lens optics total length TTL (that is, from the object side of the first lens E1
Distance of the face S1 to imaging surface S13 on optical axis), the half ImgH of effective pixel area diagonal line length, maximum on imaging surface S13
The Entry pupil diameters EPD of angle of half field-of view Semi-FOV and imaging lens.
| f1y(mm) | 3.39 | fx(mm) | 3.85 |
| f2y(mm) | -6.77 | fy(mm) | 3.85 |
| f3y(mm) | 15.36 | TTL(mm) | 4.80 |
| f4y(mm) | 2.15 | ImgH(mm) | 2.91 |
| f5y(mm) | -1.65 | Semi-FOV(°) | 37.0 |
| EPD(mm) | 2.15 |
Table 16
The RMS spot diameter that Fig. 8 shows the imaging lens of embodiment 4 is big at different image heights position in first quartile
Small situation.As can be seen from FIG. 8, imaging lens given by embodiment 4 can be realized good image quality.
Embodiment 5
Referring to Fig. 9 and Figure 10 description according to the imaging lens of the embodiment of the present application 5.Fig. 9 is shown according to the application
The structural schematic diagram of the imaging lens of embodiment 5.
As shown in figure 9, sequentially being wrapped along optical axis by object side to image side according to the imaging lens of the application illustrative embodiments
Include: diaphragm STO, the first lens E1, 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 concave 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
Concave surface, image side surface S6 are convex surface.4th lens E4 has positive light coke, and object side S7 is convex 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, radius of curvature X, radius of curvature Y, thickness of each lens of the imaging lens of embodiment 5
Degree, 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 17
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 17, other than the object side face S9 of the 5th lens E5, the first lens E1, the second lens E2, third
The object side of any one lens and image side surface are the aspheric of rotational symmetry in lens E3, the 4th lens E4 and the 5th lens E5
Face.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, inverse that paraxial curvature c is upper 17 mean curvature radius R of table)；K be circular cone coefficient (
It has been provided in table 17)；Ai is the correction factor of aspherical i-th-th rank.The following table 18, which gives, can be used for each aspheric in embodiment 5
The high-order coefficient A of face mirror surface S1-S8, S104、A6、A8、A10、A12、A14、A16、A18And A20。
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 2.03E-01 | -1.57E-02 | 2.92E-03 | -1.07E-03 | 6.17E-05 | -1.05E-04 | -1.27E-05 | -1.10E-05 | -2.81E-06 |
| S2 | -4.14E-02 | 6.97E-03 | -4.51E-03 | 2.79E-04 | -4.92E-04 | -3.45E-05 | -4.47E-05 | -2.80E-06 | 4.16E-06 |
| S3 | -1.20E-02 | 1.07E-02 | -2.49E-03 | 1.61E-04 | -2.16E-04 | -1.17E-04 | 7.66E-06 | -1.07E-05 | 1.51E-05 |
| S4 | 1.80E-02 | 1.99E-02 | 2.60E-04 | 1.34E-03 | 7.86E-05 | 7.96E-06 | -2.14E-05 | -2.11E-05 | -1.57E-06 |
| S5 | -1.23E-01 | -3.96E-03 | 1.72E-03 | 1.61E-03 | 7.72E-04 | 3.07E-04 | 9.55E-05 | 2.79E-05 | 3.57E-06 |
| S6 | -3.11E-01 | 6.42E-03 | 7.54E-03 | 3.86E-03 | 1.70E-03 | 5.61E-04 | 1.46E-04 | 2.01E-05 | -1.06E-05 |
| S7 | -3.43E-01 | -2.94E-02 | 3.00E-02 | 2.33E-03 | -1.95E-04 | -6.44E-04 | -1.65E-04 | 1.09E-04 | -1.50E-05 |
| S8 | -1.49E-02 | 6.04E-02 | 7.69E-03 | -9.68E-03 | 2.82E-03 | 8.78E-04 | -4.60E-04 | 5.02E-05 | -1.34E-04 |
| S10 | -1.23E+00 | 1.93E-01 | -7.62E-02 | 2.90E-02 | -8.36E-03 | 2.55E-03 | -7.96E-04 | 4.59E-04 | -6.44E-05 |
Table 18
By table 17 it can also be seen that the object side S9 of the 5th lens E5 is non-rotationally-symmetric aspherical (that is, the face AAS),
Non-rotationally-symmetric aspherical face type is available but is not limited to following non-rotationally-symmetric aspherical formula and is defined:
*((1-BP)*X2+(1+BP)*Y2)3+CR*((1-CP)*X2+(1+CP)*Y2)4+DR
*((1-DP)*X2+(1+DP)*Y2)5+ER*((1-EP)*X2+(1+EP)*Y2)6+FR
*((1-FP)*X2+(1+FP)*Y2)7+GR*((1-GP)*X2+(1+GP)*Y2)8+HR
*((1-HP)*X2+(1+HP)*Y2)9+JR*((1-JP)*X2+(1+JP)*Y2)10 (2)
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 19 give the AR, BR that can be used for the non-rotationally-symmetric aspherical S13 and S14 in embodiment 5, CR, DR,
ER, FR, GR, HR, JR coefficient and AP, BP, CP, DP, EP, FP, GP, HP, JP coefficient.
| The face AAS | FR | FP | GR | GP | HR | HP | JR | JP |
| S9 | 2.47E-03 | 3.66E-05 | -4.91E-04 | -2.57E-05 | 4.95E-05 | 6.35E-06 | -2.04E-06 | 1.71E-04 |
Table 19
Table 20 gives the effective focal length of the effective focal length f1y to f5y of each lens in embodiment 5, imaging lens X-direction
Fx, the effective focal length fy of imaging lens Y direction, imaging lens optics total length TTL (that is, from the object side of the first lens E1
Distance of the face S1 to imaging surface S13 on optical axis), the half ImgH of effective pixel area diagonal line length, maximum on imaging surface S13
The Entry pupil diameters EPD of angle of half field-of view Semi-FOV and imaging lens.
| f1y(mm) | 3.39 | fx(mm) | 3.85 |
| f2y(mm) | -6.81 | fy(mm) | 3.80 |
| f3y(mm) | 22.53 | TTL(mm) | 4.80 |
| f4y(mm) | 2.24 | ImgH(mm) | 2.91 |
| f5y(mm) | -1.81 | Semi-FOV(°) | 37.1 |
| EPD(mm) | 2.12 |
Table 20
Figure 10 shows the RMS spot diameters of the imaging lens of embodiment 5 in first quartile at different image heights position
Size cases.As can be seen from FIG. 10, imaging lens given by embodiment 5 can be realized good image quality.
Embodiment 6
Referring to Figure 11 and Figure 12 description according to the imaging lens of the embodiment of the present application 6.Figure 11 is shown according to this Shen
Please embodiment 6 imaging lens structural schematic diagram.
As shown in figure 11, it is sequentially wrapped along optical axis by object side to image side according to the imaging lens of the application illustrative embodiments
Include: diaphragm STO, the first lens E1, 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 concave 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 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 convex 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 21 shows the surface type, radius of curvature X, radius of curvature Y, thickness of each lens of the imaging lens of embodiment 6
Degree, 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 21
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 21, other than the image side surface S4 of the second lens E2, the first lens E1, the second lens E2, third are saturating
The object side of any one lens and image side surface are the aspheric of rotational symmetry in mirror E3, the 4th lens E4 and the 5th lens E5
Face.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, inverse that paraxial curvature c is upper 21 mean curvature radius R of table)；K be circular cone coefficient (
It has been provided in table 21)；Ai is the correction factor of aspherical i-th-th rank.The following table 22, which gives, can be used for each aspheric in embodiment 6
The high-order coefficient A of face mirror surface S1-S3, S5-S104、A6、A8、A10、A12、A14、A16、A18And A20。
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 2.00E-01 | -1.92E-02 | 1.61E-03 | -1.43E-03 | -7.33E-06 | -1.07E-04 | -2.73E-06 | -8.22E-06 | -2.63E-06 |
| S2 | -4.88E-02 | 2.73E-03 | -3.33E-03 | 1.05E-04 | -1.24E-04 | -3.06E-05 | -1.10E-05 | -1.31E-06 | 8.58E-06 |
| S3 | -3.04E-02 | 1.82E-02 | -3.04E-03 | 8.61E-04 | -1.12E-04 | -2.46E-06 | -6.21E-06 | -4.64E-06 | 2.48E-06 |
| S5 | -1.37E-01 | -6.76E-04 | 9.24E-04 | 1.01E-03 | 3.25E-04 | 1.24E-04 | 1.12E-05 | 1.02E-05 | -7.41E-07 |
| S6 | -3.12E-01 | 1.21E-02 | 6.41E-03 | 2.12E-03 | 7.40E-04 | 1.59E-04 | 1.89E-05 | -1.67E-05 | -1.06E-05 |
| S7 | -3.97E-01 | -3.96E-02 | 2.66E-02 | -3.19E-03 | -3.79E-03 | -9.55E-04 | 3.03E-05 | 2.44E-05 | -4.31E-05 |
| S8 | -2.85E-01 | 5.68E-02 | -9.72E-03 | -2.73E-02 | -8.71E-03 | 1.80E-03 | -6.32E-04 | -1.04E-03 | -6.65E-04 |
| S9 | -5.87E-01 | 3.82E-01 | -1.28E-01 | 7.55E-03 | 6.39E-03 | -2.75E-03 | -2.21E-05 | -4.82E-04 | 3.45E-04 |
| S10 | -1.14E+00 | 2.69E-01 | -7.21E-02 | 3.38E-02 | -1.46E-02 | 2.07E-03 | -1.39E-03 | 2.96E-04 | -2.21E-04 |
Table 22
By table 21 it can also be seen that the image side surface S4 of the second lens E2 is non-rotationally-symmetric aspherical (that is, the face AAS),
Non-rotationally-symmetric aspherical face type is available but is not limited to following non-rotationally-symmetric aspherical formula and is defined:
*((1-BP)*X2+(1+BP)*Y2)3+CR*((1-CP)*X2+(1+CP)*Y2)4+DR
*((1-DP)*X2+(1+DP)*Y2)5+ER*((1-EP)*X2+(1+EP)*Y2)6+FR
*((1-FP)*X2+(1+FP)*Y2)7+GR*((1-GP)*X2+(1+GP)*Y2)9+HR
*((1-HP)*X2+(1+HP)*Y2)9+JR*((1-JP)*X2+(1+JP)*Y2)10(2)
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 23 give the AR, BR that can be used for the non-rotationally-symmetric aspherical S13 and S14 in embodiment 6, CR, DR,
ER, FR, GR, HR, JR coefficient and AP, BP, CP, DP, EP, FP, GP, HP, JP coefficient.
| The face AAS | FR | FP | GR | GP | HR | HP | JR | JP |
| S4 | -1.22E+00 | -4.41E-04 | -1.36E+00 | 1.04E-04 | 2.22E+00 | -3.88E-04 | -8.47E-01 | -3.14E-04 |
Table 23
Table 24 gives the effective focal length of the effective focal length f1y to f5y of each lens in embodiment 6, imaging lens X-direction
Fx, the effective focal length fy of imaging lens Y direction, imaging lens optics total length TTL (that is, from the object side of the first lens E1
Distance of the face S1 to imaging surface S13 on optical axis), the half ImgH of effective pixel area diagonal line length, maximum on imaging surface S13
The Entry pupil diameters EPD of angle of half field-of view Semi-FOV and imaging lens.
| f1y(mm) | 3.34 | fx(mm) | 3.77 |
| f2y(mm) | -7.21 | fy(mm) | 3.79 |
| f3y(mm) | -9226.58 | TTL(mm) | 4.81 |
| f4y(mm) | 2.07 | ImgH(mm) | 2.91 |
| f5y(mm) | -1.76 | Semi-FOV(°) | 37.0 |
| EPD(mm) | 2.17 |
Table 24
Figure 12 shows the RMS spot diameters of the imaging lens of embodiment 6 in first quartile at different image heights position
Size cases.As can be seen from FIG. 12, imaging lens given by embodiment 6 can be realized good image quality.
Embodiment 7
Referring to Figure 13 and Figure 14 description according to the imaging lens of the embodiment of the present application 7.Figure 13 is shown according to this Shen
Please embodiment 7 imaging lens structural schematic diagram.
As shown in figure 13, it is sequentially wrapped along optical axis by object side to image side according to the imaging lens of the application illustrative embodiments
Include: diaphragm STO, the first lens E1, 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 concave 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 convex 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 25 shows the surface type, radius of curvature X, radius of curvature Y, thickness of each lens of the imaging lens of embodiment 7
Degree, 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 25
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 25, other than the object side S3 of the second lens E2 and image side surface S4, the first lens E1, the third lens
The object side of any one lens and image side surface are the aspherical of rotational symmetry in E3, the 4th lens E4 and the 5th lens E5.
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, inverse that paraxial curvature c is upper 25 mean curvature radius R of table)；K be circular cone coefficient (
It has been provided in table 25)；AiIt is the correction factor of aspherical i-th-th rank.The following table 26, which gives, can be used for each aspheric in embodiment 7
The high-order coefficient A of face mirror surface S1-S2, S5-S104、A6、A8、A10、A12、A14、A16、A18And A20。
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 1.98E-01 | -2.12E-02 | 5.97E-04 | -1.81E-03 | -1.31E-04 | -1.42E-04 | -1.16E-05 | -9.87E-06 | -3.37E-06 |
| S2 | -5.09E-02 | 1.19E-03 | -3.61E-03 | 1.11E-04 | -1.43E-04 | -3.26E-05 | -7.41E-06 | 5.70E-06 | 9.39E-06 |
| S5 | -1.40E-01 | -2.25E-04 | 1.27E-03 | 1.14E-03 | 3.74E-04 | 1.22E-04 | 1.75E-05 | 7.45E-06 | 1.07E-06 |
| S6 | -2.98E-01 | 1.59E-02 | 7.13E-03 | 2.22E-03 | 7.00E-04 | 1.60E-04 | 1.49E-05 | -1.10E-05 | -1.19E-05 |
| S7 | -3.94E-01 | -3.91E-02 | 2.74E-02 | -1.51E-03 | -1.65E-03 | -7.91E-05 | 3.35E-05 | -1.02E-04 | -1.00E-04 |
| S8 | -2.23E-01 | 2.99E-02 | -1.21E-02 | -2.32E-02 | -5.62E-03 | 1.22E-03 | -9.08E-04 | -1.07E-03 | -4.66E-04 |
| S9 | -6.25E-01 | 3.82E-01 | -1.27E-01 | 5.09E-03 | 5.75E-03 | -2.17E-03 | -8.20E-05 | -7.63E-04 | 6.51E-04 |
| S10 | -1.18E+00 | 2.75E-01 | -7.14E-02 | 3.37E-02 | -1.40E-02 | 2.45E-03 | -1.38E-03 | 3.06E-04 | -9.24E-05 |
Table 26
By table 25 it can also be seen that the object side S3 and image side surface S4 of the second lens E2 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:
*((1-BP)*X2+(1+BP)*Y2)3+CR*((1-CP)*X2+(1+CP)*Y2)4+DR
*((1-DP)*X2+(1+DP)*Y2)5+ER*((1-EP)*X2+(1+EP)*Y2)6+FR
*((1-FP)*X2+(1+FP)*Y2)7+GR*((1-GP)*X2+(1+GP)*Y2)8+HR
*((1-HP)*X2+(1+HP)*Y2)9+JR*((1-JP)*X2+(1+JP)*Y2)10(2)
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 27 give the AR, BR that can be used for the non-rotationally-symmetric aspherical S13 and S14 in embodiment 7, CR, DR,
ER, FR, GR, HR, JR coefficient and AP, BP, CP, DP, EP, FP, GP, HP, JP coefficient.
| The face AAS | FR | FP | GR | GP | HR | HP | JR | JP |
| S3 | -1.10E+01 | -4.34E-07 | 9.98E+00 | -3.09E-06 | -4.92E+00 | 4.00E-06 | 1.02E+00 | 3.50E-05 |
| S4 | -1.21E+00 | -1.56E-06 | -1.35E+00 | -1.01E-04 | 2.22E+00 | 1.04E-04 | -8.50E-01 | 1.83E-04 |
Table 27
Table 28 gives the effective focal length of the effective focal length f1y to f5y of each lens in embodiment 7, imaging lens X-direction
Fx, the effective focal length fy of imaging lens Y direction, imaging lens optics total length TTL (that is, from the object side of the first lens E1
Distance of the face S1 to imaging surface S13 on optical axis), the half ImgH of effective pixel area diagonal line length, maximum on imaging surface S13
The Entry pupil diameters EPD of angle of half field-of view Semi-FOV and imaging lens.
| f1y(mm) | 3.22 | fx(mm) | 3.78 |
| f2y(mm) | -6.76 | fy(mm) | 3.78 |
| f3y(mm) | -701.87 | TTL(mm) | 4.81 |
| f4y(mm) | 3.14 | ImgH(mm) | 2.91 |
| f5y(mm) | -1.82 | Semi-FOV(°) | 37.0 |
| EPD(mm) | 2.11 |
Table 28
Figure 14 shows the RMS spot diameters of the imaging lens of embodiment 7 in first quartile at different image heights position
Size cases.As can be seen from FIG. 14, imaging lens given by embodiment 7 can be realized good image quality.
Embodiment 8
Referring to Figure 15 and Figure 16 description according to the imaging lens of the embodiment of the present application 8.Figure 15 is shown according to this Shen
Please embodiment 8 imaging lens structural schematic diagram.
As shown in figure 15, it is sequentially wrapped along optical axis by object side to image side according to the imaging lens of the application illustrative embodiments
Include: diaphragm STO, the first lens E1, 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 concave surface.Second lens E2 has
Positive light coke, object side S3 are convex 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 convex 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 29 shows the surface type, radius of curvature X, radius of curvature Y, thickness of each lens of the imaging lens of embodiment 8
Degree, 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 29
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 29, other than the object side S3 of the second lens E2 and image side surface S4, the first lens E1, the third lens
The object side of any one lens and image side surface are the aspherical of rotational symmetry in E3, the 4th lens E4 and the 5th lens E5.
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, inverse that paraxial curvature c is upper 29 mean curvature radius R of table)；K be circular cone coefficient (
It has been provided in table 29)；AiIt is the correction factor of aspherical i-th-th rank.The following table 30, which gives, can be used for each aspheric in embodiment 8
The high-order coefficient A of face mirror surface S1-S2, S5-S104、A6、A8、A10、A12、A14、A16、A18And A20。
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 2.03E-01 | -1.77E-02 | 8.62E-04 | -1.65E-03 | -1.59E-04 | -1.62E-04 | -2.90E-06 | -2.02E-05 | 2.71E-06 |
| S2 | -5.33E-02 | 7.36E-03 | -5.45E-03 | 8.55E-04 | -4.28E-04 | 9.67E-05 | -5.12E-05 | 2.19E-05 | -4.11E-06 |
| S5 | -1.08E-01 | 5.06E-03 | 2.65E-03 | 1.21E-03 | 2.77E-04 | 4.63E-05 | -2.14E-05 | -1.15E-05 | 5.23E-07 |
| S6 | -2.75E-01 | 2.21E-02 | 8.39E-03 | 2.48E-03 | 9.75E-04 | 1.80E-04 | 6.16E-05 | 5.83E-06 | -2.16E-06 |
| S7 | -4.01E-01 | -4.29E-02 | 3.70E-02 | 1.02E-02 | 2.53E-03 | -1.53E-03 | -8.12E-04 | -1.59E-04 | 1.25E-05 |
| S8 | -1.35E-01 | 5.96E-02 | 3.61E-04 | -9.30E-03 | -1.45E-04 | 1.75E-03 | 9.28E-04 | 6.99E-04 | -4.09E-04 |
| S9 | -5.71E-01 | 3.68E-01 | -1.24E-01 | 1.79E-02 | 2.31E-03 | -1.52E-03 | 2.07E-04 | -1.61E-04 | 5.61E-05 |
| S10 | -1.01E+00 | 2.34E-01 | -7.30E-02 | 3.04E-02 | -1.22E-02 | 2.35E-03 | -1.25E-03 | 2.69E-05 | 1.12E-04 |
Table 30
By table 29 it can also be seen that the object side S3 and image side surface S4 of the second lens E2 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:
*((1-BP)*X2+(1+BP)*Y2)3+CR*((1-CP)*X2+(1+CP)*Y2)4+DR
*((1-DP)*X2+(1+DP)*Y2)5+ER*((1-EP)*X2+(1+EP)*Y2)6+FR
*((1-FP)*X2+(1+FP)*Y2)7+GR*((1-GP)*X2+(1+GP)*Y2)8+HR
*((1-HP)*X2+(1+HP)*Y2)9+JR*((1-JP)*X2+(1+JP)*Y2)10(2)
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 31 give the AR, BR that can be used for the non-rotationally-symmetric aspherical S13 and S14 in embodiment 8, CR, DR,
ER, FR, GR, HR, JR coefficient and AP, BP, CP, DP, EP, FP, GP, HP, JP coefficient.
| The face AAS | FR | FP | GR | GP | HR | HP | JR | JP |
| S3 | -7.54E+00 | 9.70E-07 | 6.05E+00 | -1.36E-06 | -2.72E+00 | -1.37E-06 | 5.22E-01 | 2.77E-05 |
| S4 | -1.20E+00 | 7.34E-05 | -1.35E+00 | -2.58E-06 | 2.21E+00 | 2.17E-05 | -8.62E-01 | -4.10E-05 |
Table 31
Table 32 gives the effective focal length of the effective focal length f1y to f5y of each lens in embodiment 8, imaging lens X-direction
Fx, the effective focal length fy of imaging lens Y direction, imaging lens optics total length TTL (that is, from the object side of the first lens E1
Distance of the face S1 to imaging surface S13 on optical axis), the half ImgH of effective pixel area diagonal line length, maximum on imaging surface S13
The Entry pupil diameters EPD of angle of half field-of view Semi-FOV and imaging lens.
| f1y(mm) | 4.69 | fx(mm) | 3.82 |
| f2y(mm) | 479.03 | fy(mm) | 3.82 |
| f3y(mm) | -41.09 | TTL(mm) | 4.81 |
| f4y(mm) | 2.08 | ImgH(mm) | 2.91 |
| f5y(mm) | -1.68 | Semi-FOV(°) | 37.0 |
| EPD(mm) | 2.13 |
Table 32
Figure 16 shows the RMS spot diameters of the imaging lens of embodiment 8 in first quartile at different image heights position
Size cases.As can be seen from FIG. 16, imaging lens given by embodiment 8 can be realized good image quality.
Embodiment 9
Referring to Figure 17 and Figure 18 description according to the imaging lens of the embodiment of the present application 9.Figure 17 shows according to this Shen
Please embodiment 9 imaging lens structural schematic diagram.
As shown in figure 17, it is sequentially wrapped along optical axis by object side to image side according to the imaging lens of the application illustrative embodiments
Include: diaphragm STO, the first lens E1, 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
Concave surface, image side surface S6 are convex surface.4th lens E4 has positive light coke, and object side S7 is convex 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 33 shows the surface type, radius of curvature X, radius of curvature Y, thickness of each lens of the imaging lens of embodiment 9
Degree, 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 33
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 33, other than the object side S9 of the image side surface S8 of the 4th lens E4 and the 5th lens E5, first thoroughly
The object side and image side of any one lens in mirror E1, the second lens E2, the third lens E3, the 4th lens E4 and the 5th lens E5
Face is the aspherical of rotational symmetry.In the present embodiment, the face type x of each non-spherical lens is available but is not limited to following aspheric
Face formula 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 33 mean curvature radius R of table)；K be circular cone coefficient (
It has been provided in table 33)；Ai is the correction factor of aspherical i-th-th rank.The following table 34, which gives, can be used for each aspheric in embodiment 9
The high-order coefficient A of face mirror surface S1-S7, S104、A6、A8、A10、A12、A14、A16、A18And A20。
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 | A18 | A20 |
| S1 | 1.92E-01 | -1.90E-02 | 2.02E-03 | -1.35E-03 | 3.79E-05 | -1.24E-04 | -3.98E-06 | -1.48E-05 | 1.07E-06 |
| S2 | -2.47E-02 | 5.47E-04 | -4.04E-03 | 5.13E-05 | -4.80E-04 | -4.01E-05 | -5.41E-05 | 1.55E-06 | -1.56E-06 |
| S3 | -1.86E-02 | 1.37E-02 | -1.95E-03 | 6.79E-04 | -2.60E-04 | -1.30E-05 | -2.28E-05 | -1.96E-06 | 3.22E-06 |
| S4 | 1.16E-02 | 1.76E-02 | 6.24E-04 | 9.87E-04 | -1.03E-05 | 5.79E-06 | -2.50E-05 | -1.02E-05 | -5.25E-06 |
| S5 | -1.20E-01 | -3.12E-04 | 2.01E-03 | 1.01E-03 | 3.24E-04 | 6.40E-05 | 4.42E-06 | -7.73E-06 | -4.02E-06 |
| S6 | -2.89E-01 | 1.53E-02 | 2.06E-03 | 1.45E-03 | 3.24E-04 | 1.37E-04 | 1.02E-06 | 6.42E-06 | -4.01E-06 |
| S7 | -4.71E-01 | -4.84E-02 | 2.13E-02 | 2.90E-03 | 9.73E-05 | -2.05E-04 | -2.73E-04 | -1.62E-04 | -1.97E-05 |
| S10 | -1.03E+00 | 1.35E-01 | -6.15E-02 | 2.89E-02 | -1.03E-02 | 2.64E-03 | -5.40E-04 | 4.90E-05 | 1.04E-04 |
Table 34
By table 33 it can also be seen that the object side S9 of the image side surface S8 and the 5th lens E5 of the 4th lens E4 are non-rotating right
Aspherical (that is, the face AAS) claimed, non-rotationally-symmetric aspherical face type is available but is not limited to following non-rotationally-symmetric non-
Spherical formula is defined:
*((1-BP)*X2+(1+BP)*Y2)3+CR*((1-CP)*X2+(1+CP)*Y2)4+DR
*((1-DP)*X2+(1+DP)*Y2)5+ER*((1-EP)*X2+(1+EP)*Y2)6+FR
*((1-FP)*X2+(1+FP)*Y2)7+GR*((1-GP)*X2+(1+GP)*Y2)3+HR
*((1-HP)*X2+(1+HP)*Y2)9+JR*((1-JP)*X2+(1+JP)*Y2)10(2)
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 35 give the AR, BR that can be used for the non-rotationally-symmetric aspherical S13 and S14 in embodiment 9, CR, DR,
ER, FR, GR, HR, JR coefficient and AP, BP, CP, DP, EP, FP, GP, HP, JP coefficient.
| The face AAS | FR | FP | GR | GP | HR | HP | JR | JP |
| S8 | 2.49E-02 | -1.89E-05 | -5.53E-03 | 2.62E-06 | 6.96E-04 | 1.67E-05 | -3.78E-05 | -3.47E-05 |
| S9 | 2.47E-03 | 7.39E-06 | -4.91E-04 | 4.33E-06 | 4.95E-05 | -8.23E-06 | -2.04E-06 | -5.00E-05 |
Table 35
Table 36 gives the effective focal length of the effective focal length f1y to f5y of each lens in embodiment 9, imaging lens X-direction
Fx, the effective focal length fy of imaging lens Y direction, imaging lens optics total length TTL (that is, from the object side of the first lens E1
Distance of the face S1 to imaging surface S13 on optical axis), the half ImgH of effective pixel area diagonal line length, maximum on imaging surface S13
The Entry pupil diameters EPD of angle of half field-of view Semi-FOV and imaging lens.
Table 36
Figure 18 shows the RMS spot diameters of the imaging lens of embodiment 9 in first quartile at different image heights position
Size cases.As can be seen from FIG. 18, imaging lens given by embodiment 9 can be realized good image quality.
To sum up, embodiment 1 to embodiment 9 meets relationship shown in table 37 respectively.
Table 37
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 imaging lens described above.
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 (20)
1. imaging lens, along optical axis by object side to image side sequentially include: the first lens, the second lens, the third lens, the 4th thoroughly
Mirror and the 5th lens, which is characterized in that
First lens have positive light coke, and object side is convex surface；
Second lens have focal power, and image side surface is concave surface；
The third lens have focal power, and image side surface is convex surface；
4th lens have positive light coke, and image side surface is convex surface；
5th lens have negative power, and image side surface is concave surface；And
At least one lens of first lens into the 5th lens have non-rotationally-symmetric aspherical.
2. imaging lens according to claim 1, which is characterized in that the effective focal length of the X-direction of the imaging lens
The Entry pupil diameters EPD of fx and the imaging lens meets fx/EPD < 2.0；And
The effective focal length fy of the Y direction of the imaging lens and the Entry pupil diameters EPD of the imaging lens meet fy/EPD <
2.0。
3. imaging lens according to claim 1, which is characterized in that the object side of first lens of the imaging lens
Face to the imaging lens imaging surface on the optical axis distance TTL and the imaging lens imaging surface on valid pixel
The half ImgH of region diagonal line length meets TTL/ImgH < 1.8.
4. imaging lens according to claim 1, which is characterized in that the effective focal length of the X-direction of the imaging lens
Fx, the imaging lens first lens object side to the imaging lens distance of the imaging surface on the optical axis
The one of effective pixel area diagonal line length on the imaging surface of TTL, the Entry pupil diameters EPD of the imaging lens and the imaging lens
Half ImgH meets (fx × TTL)/(EPD × ImgH) < 3.5；And
Object side to the institute of the effective focal length fy of the Y direction of the imaging lens, first lens of the imaging lens
State the Entry pupil diameters EPD and the imaging lens of distance TTL of the imaging surface of imaging lens on the optical axis, the imaging lens
The half ImgH of effective pixel area diagonal line length meets (fy × TTL)/(EPD × ImgH) < 3.5 on the imaging surface of head.
5. imaging lens according to claim 1, which is characterized in that the effective focal length of the X-direction of the imaging lens
The effective focal length fy of the Y direction of fx and the imaging lens meets 0.9 < fy/fx < 1.1.
6. imaging lens according to claim 1, which is characterized in that the focal length f1y in the Y direction of first lens
Meet 0.7 < f1y/fy < 1.3 with the effective focal length fy of the Y direction of the imaging lens.
7. imaging lens according to claim 1, which is characterized in that the focal length f4y in the Y direction of the 4th lens
Meet -1.9 < f4y/R8 < -1.5 with the radius of curvature R 8 of the Y direction of the image side surface of the 4th lens.
8. imaging lens according to claim 1, which is characterized in that the Y direction of the object side of the 5th lens
The radius of curvature R 10 of the Y direction of the image side surface of radius of curvature R 9 and the 5th lens meets 0.7≤(R9+R10)/(R9-
R10)<1.1。
9. imaging lens according to claim 1, which is characterized in that the Y direction of the image side surface of the 5th lens
Radius of curvature R 10, the 4th lens image side surface Y direction radius of curvature R 8 and the imaging lens Y direction
Effective focal length fy meet 0.2 < (R10-R8)/fy < 0.8.
10. imaging lens according to claim 1, which is characterized in that the third lens and the 4th lens are in institute
State the effective focal length fy of the Y direction of airspace T34 on optical axis, the imaging lens and the half at maximum field of view angle
Semi-FOV meets 0.9 < T34 × fy × Tan (Semi-FOV) < 1.6.
11. imaging lens according to claim 1, which is characterized in that first lens to the 5th lens are distinguished
In the summation ∑ CT and first lens, two lens of arbitrary neighborhood into the 5th lens of the center thickness on the optical axis
The summation ∑ T of airspace on the optical axis meets 1.5 < ∑ CT/ ∑ T < 2.5.
12. imaging lens according to claim 1, which is characterized in that first lens to the 5th lens are distinguished
Meet 0.6 < ∑ in the effective focal length fy of the Y direction of the summation ∑ CT and imaging lens of the center thickness on the optical axis
CT/fy≤0.7。
13. imaging lens according to claim 1, which is characterized in that the effective focal length of the Y direction of the imaging lens
The center thickness CT3 of fy, the third lens on the optical axis and center thickness of the 4th lens on the optical axis
CT4 meets at least one in following item:
4.3<fy/CT3<5.5；And
4.5<fy/CT4<7.2。
14. imaging lens according to claim 1, which is characterized in that maximum effective on the image side surface of second lens
The image side surface of second lens described in radius vertex distance distance SAG22, described on the optical axis with the optical axes crosspoint
The image side surface of the third lens described in maximum effective radius vertex distance is with the optical axes crosspoint described on the image side surface of three lens
Distance SAG32 on optical axis, on the object side of the 5th lens the 5th lens described in maximum effective radius vertex distance object
The side center thickness of distance SAG51, second lens on the optical axis on the optical axis with the optical axes crosspoint
The center thickness CT3 of CT2, the third lens on the optical axis and center thickness of the 5th lens on the optical axis
CT5 meets at least one in following item:
0.7<SAG22/CT2<1.3；
-0.6<SAG32/CT3<-0.3；And
-3.2<SAG51/CT5<-1.6。
15. imaging lens according to claim 1, which is characterized in that maximum effective on the object side of the third lens
The object side of the third lens described in radius vertex distance distance SAG31, described on the optical axis with the optical axes crosspoint
The image side surface of the third lens described in maximum effective radius vertex distance is with the optical axes crosspoint described on the image side surface of three lens
Distance SAG32 on optical axis, on the object side of the 4th lens the 4th lens described in maximum effective radius vertex distance object
Side and the optical axes crosspoint maximum effective radius on the image side surface of distance SAG41 and the 4th lens on the optical axis
The distance SAG42 on the optical axis meets in following item the image side surface of 4th lens described in vertex distance with the optical axes crosspoint
At least one of:
1.8<SAG32/SAG31<3.5；And
1.6<SAG42/SAG41<2.9。
16. imaging lens according to claim 1, which is characterized in that first lens are each to the 5th lens
From edge thickness summation ∑ ET and first lens to the 5th lens respectively at the center thickness on the optical axis
Summation ∑ CT meet 0.7 < ∑ ET/ ∑ CT < 1.0.
17. imaging lens according to claim 1, which is characterized in that center of first lens on the optical axis
The center of center thickness CT3, the 5th lens on the optical axis of thickness CT1, the third lens on the optical axis
The side of thickness CT5, the edge thickness ET1 of first lens, the edge thickness ET3 of the third lens and the 5th lens
Edge thickness E T5 meets at least one in following item:
2.7<CT1/ET1<3.1；
1.2<CT3/ET3<1.5；And
0.2<CT5/ET5<0.7。
18. imaging lens according to claim 1, which is characterized in that the institute of first lens to the 5th lens
There is the institute of object side, the maximum SD_max of maximum effective radius on image side surface and first lens to the 5th lens
Have that object side, the minimum SD_min of maximum effective radius meets 2.4 < SD_max/SD_min < 2.8 on image side surface.
19. imaging lens according to claim 1, which is characterized in that center of first lens on the optical axis
Thickness CT1, second lens are at the center of center thickness CT2, the third lens on the optical axis on the optical axis
Thickness CT3, center thickness CT4 of the 4th lens on the optical axis and center of the 5th lens on the optical axis
Thickness CT5 meets at least one in following item:
0.91 < (CT1+CT2)/CT3 < 1.18 and 0.95 < (CT4+CT5)/CT3 < 1.37；Or
0.95 < (CT1+CT5)/CT3 < 1.29 and 0.89 < (CT4+CT5)/CT3 < 1.32.
20. imaging lens according to claim 1, which is characterized in that second lens and the third lens are in institute
State airspace T34 and institute of the airspace T23, the third lens and the 4th lens on optical axis on the optical axis
It states center thickness CT3 of the third lens on the optical axis and meets 0.9 < (T23+T34)/CT3 < 1.5.
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| CN201920043906.XU CN209388015U (en) | 2019-01-11 | 2019-01-11 | Imaging lens |
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| CN201920043906.XU CN209388015U (en) | 2019-01-11 | 2019-01-11 | Imaging lens |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459840A (en) * | 2019-01-11 | 2019-03-12 | 浙江舜宇光学有限公司 | Imaging lens |
| WO2021097928A1 (en) * | 2019-11-22 | 2021-05-27 | 诚瑞光学(常州)股份有限公司 | Camera optical lens |
-
2019
- 2019-01-11 CN CN201920043906.XU patent/CN209388015U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459840A (en) * | 2019-01-11 | 2019-03-12 | 浙江舜宇光学有限公司 | Imaging lens |
| WO2021097928A1 (en) * | 2019-11-22 | 2021-05-27 | 诚瑞光学(常州)股份有限公司 | Camera optical lens |
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