CN207008163U - Imaging lens - Google Patents
Imaging lens Download PDFInfo
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- CN207008163U CN207008163U CN201720938617.7U CN201720938617U CN207008163U CN 207008163 U CN207008163 U CN 207008163U CN 201720938617 U CN201720938617 U CN 201720938617U CN 207008163 U CN207008163 U CN 207008163U
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Abstract
This application discloses a kind of imaging lens, are sequentially included by thing side to image side：The first lens with positive light coke；The second lens with focal power, its thing side are convex surface, and image side surface is concave surface；The 3rd lens with positive light coke, its image side surface are convex surface；The 4th with focal power is saturating；The 5th lens with focal power, its thing side are convex surface；Wherein, 5.5 are met between the effective focal length f1 of the effective focal length f of the imaging lens and first lens<f1/f<25.The imaging lens of the application use 5 eyeglasses, have the characteristics of large aperture, high relative luminance, wide angle, good image quality.
Description
Technical field
It the utility model is related to a kind of imaging lens, the large aperture imaging lens being particularly made up of five eyeglasses.
Background technology
The development of contemporary optics system, except developing to high-resolution, also constantly develop to big visual field and large aperture.Cause
More object space information can be included for big visual field and large aperture.Therefore, the camera lens of big visual field and large aperture turn into one
Kind trend.
At present, it is growing due to portable type electronic product, to the big visual field of pick-up lens, large aperture, high relatively bright
The performance such as degree and image quality proposes further higher requirement.It is existing in order to meet the requirement of compact-sized, high relative luminance
There are F numbers that camera lens generally configures 2.0 or more than 2.0, realize while lens construction is compact with good optical property.
But with the continuous development of the portable type electronic products such as smart mobile phone, imaging lens are proposed with higher requirement, particularly
For insufficient light (such as rainy days, dusk), situations such as hand shaking, so 2.0 or more than 2.0 F numbers can not meet more
The imaging requirements of high-order.
Therefore, the utility model provides one kind and is applicable to portable type electronic product, has large aperture, high relatively bright
The optical system of degree, wide angle, good image quality and low sensitivity.
Utility model content
In order to solve at least some problems of the prior art, the utility model provides a kind of imaging lens.
One side of the present utility model provides a kind of imaging lens, is sequentially included by thing side to image side：With positive light
First lens of focal power；The second lens with focal power, its thing side are convex surface, and image side surface is concave surface；With positive light coke
The 3rd lens, its image side surface is convex surface；The 4th lens with focal power；The 5th lens with focal power, its thing side
For convex surface；Wherein, 5.5 are met between the effective focal length f of imaging lens and the effective focal length f1 of the first lens<f1/f<25.
According to an embodiment of the present utility model, the effective focal length f of imaging lens and the entrance pupil diameter of imaging lens
Meet f/EPD≤1.6 between EPD.
According to an embodiment of the present utility model, the effective radius DT11 of the first lens thing side and the 5th lens image side
Meet 1.8 between the effective radius DT52 in face<DT11/DT52<2.8.
It is effective on the effective radius DT11 and imaging surface of the first lens thing side according to an embodiment of the present utility model
Meet 1.3 between the half ImgH of pixel region diagonal line length<DT11/ImgH<3.
According to an embodiment of the present utility model, the combined focal length f12 and imaging lens of the first lens and the second lens
Effective focal length f between meet -3.5<f12/f<-2.6.
According to an embodiment of the present utility model, the lens image side surface of radius of curvature R 3 and the 3rd of the second lens thing side
Radius of curvature R 6 between meet -1.2<R3/R6<-0.5.
According to an embodiment of the present utility model, an at least surface has in the first lens thing side surface and image side surface
An at least point of inflexion.
According to an embodiment of the present utility model, on imaging surface the half ImgH of effective pixel area diagonal line length with into
As camera lens effective focal length f between meet ImgH/f >=1.1.
According to an embodiment of the present utility model, the effective focal length f1 of the first lens and the effective focal length f3 of the 3rd lens
Between meet 1.5<f1/f3<8.
According to an embodiment of the present utility model, the effective focal length f3 of the 3rd lens and the effective focal length f of imaging lens
Between meet 1.4≤f3/f<3.8.
According to an embodiment of the present utility model, the effective radius DT11 of the first lens thing side and the second lens thing side
Meet 2 between the effective radius DT21 in face<DT11/DT21<3.4.
According to an embodiment of the present utility model, the effective focal length f5 of the 5th lens and the effective focal length f of imaging lens
Between Man Zu ∣ f/f5 ∣<0.2.
According to an embodiment of the present utility model, infrared band pass filter is provided between the 5th lens and imaging surface.
According to an embodiment of the present utility model, diaphragm is provided between the second lens and the 3rd lens.
Another aspect of the present utility model provides a kind of imaging lens, is sequentially included by thing side to image side：With positive light
First lens of focal power；The second lens with focal power, its thing side are convex surface, and image side surface is concave surface；With positive light coke
The 3rd lens, its image side surface is convex surface；The 4th lens with focal power；The 5th lens with focal power, its thing side
For convex surface；Characterized in that, the effective radius DT11 of the first lens thing side and effective pixel area diagonal line length on imaging surface
Half ImgH between meet 1.3<DT11/ImgH<3.
According to an embodiment of the present utility model, the effective focal length f of imaging lens and the entrance pupil diameter of imaging lens
Meet f/EPD≤1.6 between EPD.
According to an embodiment of the present utility model, the effective radius DT11 of the first lens thing side and the 5th lens image side
Meet 1.8 between the effective radius DT52 in face<DT11/DT52<2.8.
According to an embodiment of the present utility model, the effective focal length f of imaging lens and the effective focal length f1 of the first lens
Between meet 5.5<f1/f<25.
According to an embodiment of the present utility model, the combined focal length f12 and imaging lens of the first lens and the second lens
Effective focal length f between meet -3.5<f12/f<-2.6.
According to an embodiment of the present utility model, the lens image side surface of radius of curvature R 3 and the 3rd of the second lens thing side
Radius of curvature R 6 between meet -1.2<R3/R6<-0.5.
According to an embodiment of the present utility model, an at least surface has in the first lens thing side surface and image side surface
An at least point of inflexion.
According to an embodiment of the present utility model, on imaging surface the half ImgH of effective pixel area diagonal line length with into
As camera lens effective focal length f between meet ImgH/f >=1.1.
According to an embodiment of the present utility model, the effective focal length f1 of the first lens and the effective focal length f3 of the 3rd lens
Between meet 1.5<f1/f3<8.
According to an embodiment of the present utility model, the effective focal length f3 of the 3rd lens and the effective focal length f of imaging lens
Between meet 1.4≤f3/f<3.8.
According to an embodiment of the present utility model, the effective radius DT11 of the first lens thing side and the second lens thing side
Meet 2 between the effective radius DT21 in face<DT11/DT21<3.4.
According to an embodiment of the present utility model, the effective focal length f5 of the 5th lens and the effective focal length f of imaging lens
Between Man Zu ∣ f/f5 ∣<0.2.
According to an embodiment of the present utility model, infrared band pass filter is provided between the 5th lens and imaging surface.
According to an embodiment of the present utility model, diaphragm is provided between the second lens and the 3rd lens.
Another aspect of the present utility model provides a kind of imaging lens, is sequentially included by thing side to image side：With positive light
First lens of focal power；The second lens with focal power, its thing side are convex surface, and image side surface is concave surface；With positive light coke
The 3rd lens, its image side surface is convex surface；The 4th lens with focal power；The 5th lens with focal power, its thing side
For convex surface；Characterized in that, the effective radius DT11 of the first lens thing side and effective radius DT52 of the 5th lens image side surface
Between meet 1.8<DT11/DT52<2.8.
Another aspect of the present utility model provides a kind of imaging lens, is sequentially included by thing side to image side：With positive light
First lens of focal power；The second lens with focal power, its thing side are convex surface, and image side surface is concave surface；With positive light coke
The 3rd lens, its image side surface is convex surface；The 4th lens with focal power；The 5th lens with focal power, its thing side
For convex surface；It is characterized in that, full between the combined focal length f12 and imaging lens of the first lens and the second lens effective focal length f
Foot -3.5<f12/f<-2.6.
Another aspect of the present utility model provides a kind of imaging lens, is sequentially included by thing side to image side：With positive light
First lens of focal power；The second lens with focal power, its thing side are convex surface, and image side surface is concave surface；With positive light coke
The 3rd lens, its image side surface is convex surface；The 4th lens with focal power；The 5th lens with focal power, its thing side
For convex surface；Characterized in that, the effective radius DT11 of the first lens thing side and effective radius DT21 of the second lens thing side
Between meet 2<DT11/DT21<3.4.
Another aspect of the present utility model provides a kind of imaging lens, is sequentially included by thing side to image side：With positive light
First lens of focal power；The second lens with focal power, its thing side are convex surface, and image side surface is concave surface；With positive light coke
The 3rd lens, its image side surface is convex surface；The 4th lens with focal power；The 5th lens with focal power, its thing side
For convex surface；Characterized in that, Man Zu ∣ f/f5 ∣ between the effective focal length f5 of the 5th lens and the effective focal length f of imaging lens<
0.2。
5 eyeglasses are used according to imaging lens of the present utility model, there is large aperture, high relative luminance, wide angle, good
At least one feature in image quality.
Brief description of the drawings
With reference to accompanying drawing, by the detailed description of following non-limiting embodiment, further feature of the present utility model, purpose
It will be apparent with advantage.In the accompanying drawings：
Fig. 1 shows the structural representation of the imaging lens of embodiment 1；
Fig. 2 to Fig. 5 respectively illustrate chromatic curve on the axle of the imaging lens of embodiment 1, astigmatism curve, distortion curve and
Relative illumination curve；
Fig. 6 shows the structural representation of the imaging lens of embodiment 2；
Fig. 7 to Figure 10 respectively illustrates chromatic curve on the axle of the imaging lens of embodiment 2, astigmatism curve, distortion curve
With relative illumination curve；
Figure 11 shows the structural representation of the imaging lens of embodiment 3；
Figure 12 to Figure 15 respectively illustrates chromatic curve on the axle of the imaging lens of embodiment 3, astigmatism curve, distortion curve
With relative illumination curve；
Figure 16 shows the structural representation of the imaging lens of embodiment 4；
Figure 17 to Figure 20 respectively illustrates chromatic curve on the axle of the imaging lens of embodiment 4, astigmatism curve, distortion curve
With relative illumination curve；
Figure 21 shows the structural representation of the imaging lens of embodiment 5；
Figure 22 to Figure 25 respectively illustrates chromatic curve on the axle of the imaging lens of embodiment 5, astigmatism curve, distortion curve
With relative illumination curve；
Figure 26 shows the structural representation of the imaging lens of embodiment 6；And
Figure 27 to Figure 30 respectively illustrates chromatic curve on the axle of the imaging lens of embodiment 6, astigmatism curve, distortion curve
With relative illumination curve.
Embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining relevant utility model, rather than the restriction to the utility model.Further need exist for illustrating
, for the ease of description, illustrate only in accompanying drawing to about the related part of utility model.
It should be understood that in this application, when element or layer be described as be in another element or layer " on ", " being connected to " or
When " being attached to " another element or layer, its can directly on another element or layer, be connected directly to or be attached to another element or
Layer, or element or layer between may be present.When element be referred to as " located immediately at " another element or layer " on ", " directly connect
It is connected to " or when " being attached directly to " another element or layer, in the absence of element or layer between.In the specification, phase
Same label refers to identical element.As used in this article, term "and/or" includes one in associated Listed Items
Or multiple any and all combinations.
Although it should be understood that term the 1st, the 2nd or first, second etc. herein can be used for describe various elements,
Part, region, layer and/or section, but these elements, part, region, layer and/or Duan Buying are limited by these terms.These are used
Language is only used for distinguishing an element, part, region, layer or section and another element, part, region, layer or section.Therefore,
In the case of without departing substantially from teachings of the present application, the first element, part, region, layer or section discussed below can be referred to as the
Two element, part, region, layer or section.
Terminology used herein is only used for describing the purpose of embodiment, it is no intended to limits the application.Such as exist
It is used herein, unless being clearly dictated in context, otherwise it is also intended to bag without the feature for limiting single plural form
Include the feature of plural form.It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ",
Represent stated feature, entirety, step, operation, element and/or part be present when using in this manual, but do not arrange
Except exist or add one or more of the other feature, entirety, step, operation, element, part and/or their group.Such as herein
Middle to use, term "and/or" includes any of one or more of associated Listed Items and all combination.Such as
The statement of " ... at least one " modifies whole element list, rather than modification row when after the list for appearing in element
Individual component in table.In addition, when describing presently filed embodiment, " can with " be used to represent " one or more of the application
Individual embodiment ".Also, term " exemplary " is intended to refer to example or illustration.
Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein be respectively provided with
The application one skilled in the art's is generally understood that identical implication.It will also be appreciated that term (such as in everyday words
Term defined in allusion quotation) implication consistent with their implications in the context of correlation technique should be interpreted as having, and
It will not explained with idealization or excessively formal sense, unless clearly so limiting herein.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
This application provides a kind of imaging lens.According to the imaging lens of the application from thing side to the image side of imaging lens according to
Sequence is provided with：First lens, the second lens, the 3rd lens, the 4th lens and the 5th lens.
It is full between the effective focal length f of imaging lens and the entrance pupil diameter EPD of imaging lens in embodiments herein
Sufficient f/EPD≤1.6, and meet 5.5 between the effective focal length f of imaging lens and the effective focal length f1 of the first lens<f1/f<
25, specifically, meet 5.82≤f1/f≤12.05.Wide-angle, large aperture, height can be realized by meeting the imaging lens of above-mentioned relation
The effect of relative illumination, high resolution.
In embodiments herein, the effective radius DT11 of the first lens thing side is effective with the 5th lens image side surface
Meet 1.8 between radius DT52<DT11/DT52<2.8, more specifically, meeting 1.86≤DT11/DT52≤2.75.Meet above-mentioned
The imaging lens of relation can realize wide angle, the effect of high relative illumination.
In embodiments herein, effective radius DT11 and the effective pixel area on imaging surface of the first lens thing side
Meet 1.3 between the half ImgH of diagonal line length<DT11/ImgH<3, more specifically, meeting 1.31≤DT11/ImgH≤2.89.
Wide angle, high relative illumination effect can be realized by meeting the imaging lens of above-mentioned relation.
In embodiments herein, the combined focal length f12 of the first lens and the second lens and effective Jiao of imaging lens
Away from satisfaction -3.5 between f<f12/f<- 2.6, more specifically, meeting -3.4≤f12/f≤- 2.48.Meet the imaging of above-mentioned relation
Camera lens can realize wide angle effect.
In embodiments herein, the curvature half of the lens image side surface of radius of curvature R 3 and the 3rd of the second lens thing side
Meet -1.2 between the R6 of footpath<R3/R6<- 0.5, more specifically, meeting -1.1≤R3/R6≤- 0.6.Meet the imaging of above-mentioned relation
Camera lens can realize large aperture, and height is as matter effect.
In embodiments herein, meet between the effective focal length f1 of the first lens and the effective focal length f3 of the 3rd lens
1.5<f1/f3<8, more specifically, meeting 1.6≤f1/f3≤5.02.Meet above-mentioned relation imaging lens can realize wide-angle,
High pixel effect.
In embodiments herein, the half ImgH of effective pixel area diagonal line length and imaging lens on imaging surface
Meet ImgH/f >=1.1 between effective focal length f, more specifically, meeting ImgH/f >=1.11.Meet the imaging lens of above-mentioned relation
Wide-angle effect can be realized.
In embodiments herein, meet between the effective focal length f3 of the 3rd lens and the effective focal length f of imaging lens
1.4≤f3/f<3.8, more specifically, meeting 1.42≤f3/f≤3.63.Height can be realized by meeting the imaging lens of above-mentioned relation
As matter, wide-angle effect.
In embodiments herein, the effective radius DT11 of the first lens thing side is effective with the second lens thing side
Meet 2 between radius DT21<DT11/DT21<3.4, more specifically, meeting 2.06≤DT11/DT21≤3.28.Meet above-mentioned pass
The imaging lens of system can realize wide-angle effect.
In embodiments herein, Man Zu ∣ between the effective focal length f5 of the 5th lens and the effective focal length f of imaging lens
f/f5∣<0.2, more specifically, Man Zu ∣ f/f5 ∣≤0.18.High relative illumination can be realized by meeting the imaging lens of above-mentioned relation
Effect.
In embodiments herein, infrared band pass filter is provided between the 5th lens and imaging surface.Infrared band
Be advantageous to system and do not introduce aberration, control disperse spot diameter, while infrared band advantageously reduces the interference of ambient visible light, carries
High image space sensor output signal signal to noise ratio.
In embodiments herein, an at least surface is anti-with least one in the first lens thing side surface and image side surface
Qu Dian, this is advantageous to reduce distortion effect.
Include 5 lens according to the imaging lens of the embodiment of the present application 1 to embodiment 6.This 5 lens are respectively to have thing
Side S1 and image side surface S2 the first lens E1, the second lens E2 with thing side S3 and image side surface S4, with thing side S5
The 3rd lens E3 with image side surface S6, the 4th lens E4 with thing side S7 and image side surface S8 and with thing side S9 and picture
Side S10 the 5th lens E5.First lens E1 is set gradually to the 5th lens E5 from the thing side of imaging lens to image side.First
Lens E1 can have a positive light coke, and an at least surface has an at least point of inflexion in its thing side surface and image side surface；Second is saturating
Mirror E2 can have negative power, and its thing side S3 is convex surface, and image side surface S4 is concave surface；3rd lens E3 can have positive light coke,
Its image side surface S6 is convex surface；4th lens E4 can have positive light coke；5th lens can have positive light coke or negative power.Should
Imaging lens also include being used for the optical filter E6 with thing side S11 and image side surface S12 for filtering out infrared light.The imaging lens are also
Including the diaphragm between the second lens E2 and the 3rd lens E3.In embodiment, the light from object sequentially passes through each table
Face S1 to S12 is simultaneously ultimately imaged on imaging surface S13.
| Parameter embodiment | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| ImgH(mm) | 2.47 | 2.47 | 2.47 | 2.47 | 2.47 | 3.01 |
| HFOV(°) | 56.23 | 55.36 | 51.31 | 54.55 | 53.47 | 51.19 |
| f(mm) | 2.20 | 2.18 | 1.99 | 2.19 | 2.12 | 2.71 |
| f1(mm) | 15.67 | 13.64 | 24.01 | 12.74 | 13.87 | 18.40 |
| f2(mm) | -5.38 | -4.21 | -5.54 | -4.50 | -4.29 | -5.48 |
| f3(mm) | 3.13 | 6.55 | 6.16 | 7.95 | 6.18 | 7.86 |
| f4(mm) | 11.72 | 4.39 | 4.12 | 3.65 | 4.22 | 4.93 |
| f5(mm) | 12.49 | 18.55 | -94.74 | 630.30 | 12.67 | 34.51 |
| TTL(mm) | 7.67 | 8.50 | 10.49 | 9.08 | 8.14 | 10.71 |
Table 1
In embodiments herein, the first lens E1 to the 5th lens E5 has respective effective focal length f1 extremely respectively
f5.First lens E1 is arranged in order along optical axis to the 5th lens E5 and has together decided on total effective focal length f of imaging lens.It is real
Apply the first lens E1 to the 5th lens E5 effective focal length f1 to f5 in example 1 to embodiment 5, total effective focal length of imaging lens
F, the total length TTL of imaging lens, imaging lens maximum field of view angle half HFOV and imaging surface on effective pixel area pair
The half ImgH of linea angulata length can be for example as listed in Table 1.
The application is further described below in conjunction with specific embodiment.
Embodiment 1
Fig. 1 is the structural representation for the imaging lens for showing embodiment 1.As described above and reference picture 1, root
Include 5 lens according to the imaging lens of embodiment 1.This 5 lens are respectively first with thing side S1 and image side surface S2 saturating
Mirror E1, the second lens E2 with thing side S3 and image side surface S4, the 3rd lens E3 with thing side S5 and image side surface S6, tool
There is thing side S7 and image side surface S8 the 4th lens E4 and the 5th lens E5 with thing side S9 and image side surface S10.
Table 2 show the surface type of each lens in the imaging lens in the embodiment, radius of curvature, thickness, refractive index,
Abbe number and circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 2
In the present embodiment, each aspherical face type x is limited by below equation (1)：
Wherein, x be it is aspherical along optical axis direction when being highly h position, away from aspheric vertex of surface apart from rise；C is
Aspherical paraxial curvature, c=1/R (that is, paraxial curvature c is the mean curvature radius R of upper table 2 inverse)；K be circular cone coefficient (
Provided in table 2)；Ai is the correction factor of aspherical i-th-th ranks.Table 3 below is shown available for each aspheric in the embodiment
Each aspherical S1-S10 of face lens high order term coefficient A4、A6、A8、A10、A12、A14And A16。
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -4.9089E-02 | 4.8674E-01 | -4.6896E+00 | 2.5620E+01 | -8.6729E+01 | 1.8321E+02 | -2.3553E+02 |
| S2 | -1.0662E-02 | 2.0801E-02 | -2.8151E+00 | 2.1883E+01 | -1.0415E+02 | 3.0157E+02 | -5.2395E+02 |
| S3 | -2.6526E-01 | 3.2853E-01 | -5.3928E+00 | 4.0465E+01 | -1.9272E+02 | 5.7966E+02 | -1.0628E+03 |
| S4 | -1.8173E-02 | -2.2361E-01 | 2.3298E+00 | -1.5195E+01 | 6.5109E+01 | -1.6769E+02 | 2.5812E+02 |
| S5 | -8.7746E-02 | 2.3830E-02 | 9.9586E-01 | -7.8194E+00 | 3.3087E+01 | -7.9110E+01 | 1.1006E+02 |
| S6 | -2.3238E-01 | 6.3312E-01 | -1.5467E+00 | 3.6129E+00 | -6.1881E+00 | 7.2066E+00 | -5.1493E+00 |
| S7 | -5.8897E-01 | 6.0048E-01 | -3.9682E-01 | 2.0766E-01 | -8.2185E-02 | 2.2711E-02 | -4.0942E-03 |
| S8 | -3.0468E-01 | 3.1884E-01 | -2.4608E-01 | 1.3565E-01 | -5.1678E-02 | 1.3066E-02 | -2.0669E-03 |
| S9 | -3.0468E-01 | 3.1884E-01 | -2.4608E-01 | 1.3565E-01 | -5.1678E-02 | 1.3066E-02 | -2.0669E-03 |
| S10 | -3.0468E-01 | 3.1884E-01 | -2.4608E-01 | 1.3565E-01 | -5.1678E-02 | 1.3066E-02 | -2.0669E-03 |
Table 3
Fig. 2 shows chromatic curve on the axle of the imaging lens of embodiment 1, and it represents the light of different wave length via optics
Converging focal point after system deviates.Fig. 3 shows the astigmatism curve of the imaging lens of embodiment 1, and it represents meridianal image surface bending
Bent with sagittal image surface.Fig. 4 shows the distortion curve of the imaging lens of embodiment 1, abnormal in the case of its expression different visual angles
Become sizes values.Fig. 5 shows the relative illumination curve of the imaging lens of embodiment 1, and it represents that surrounding pictures are bright and drawn with center
Face light ratio, reflects picture light uniformity.In summary and reference picture 2 to Fig. 5 can be seen that according to embodiment 1 into
As camera lens be a kind of large aperture, high relative luminance, wide angle, good image quality imaging lens.
Embodiment 2
Fig. 6 is the structural representation for the imaging lens for showing embodiment 2.Reference picture 6 and according to as described above,
First lens E1, the second lens E2, the 3rd lens E3, the are included by thing side to image side successively according to the imaging lens of embodiment 2
Four lens E4 and the 5th lens E5.
Table 4 show the surface type of each lens in the imaging lens in the embodiment, radius of curvature, thickness, refractive index,
Abbe number and circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 4
Table 5 below shows the high order term coefficient of each aspherical S1-S10 available for each non-spherical lens in the embodiment
A4、A6、A8、A10、A12、A14And A16.Wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 1.3444E-02 | -2.1683E-03 | 2.6176E-04 | -2.0196E-05 | 9.4504E-07 | -2.4285E-08 | 2.6692E-10 |
| S2 | 1.4391E-02 | -3.1393E-03 | 5.7988E-04 | -7.1213E-05 | 5.2216E-06 | -2.0165E-07 | 3.1301E-09 |
| S3 | 3.3415E-02 | -6.8953E-02 | 5.2354E-02 | -2.3181E-02 | 5.9166E-03 | -8.1041E-04 | 4.5750E-05 |
| S4 | -1.4153E-01 | 2.4727E-01 | -4.6011E-01 | 6.1033E-01 | -4.9301E-01 | 2.1376E-01 | -3.7935E-02 |
| S5 | -1.1570E-03 | -5.7705E-03 | 3.3514E-03 | -1.5279E-03 | 4.0230E-04 | -4.4255E-05 | 3.2768E-07 |
| S6 | -4.2088E-02 | 1.4316E-02 | -6.5834E-03 | 1.8045E-03 | -2.6685E-04 | 7.5067E-06 | 1.7583E-06 |
| S7 | -1.5253E-02 | 1.1563E-02 | -5.6169E-03 | 1.6007E-03 | -2.5882E-04 | 2.1654E-05 | -7.2460E-07 |
| S8 | -4.0492E-02 | 2.3683E-02 | -8.3671E-03 | 1.9269E-03 | -2.5104E-04 | 1.5829E-05 | -3.4332E-07 |
| S9 | -7.6142E-02 | 1.5510E-02 | -1.0099E-02 | 4.3318E-03 | -9.0325E-04 | 9.2739E-05 | -3.8153E-06 |
| S10 | 8.3394E-03 | -3.1734E-02 | 1.5169E-02 | -4.1147E-03 | 6.6814E-04 | -5.8466E-05 | 2.0611E-06 |
Table 5
Fig. 7 shows chromatic curve on the axle of the imaging lens of embodiment 2, and it represents the light of different wave length via optics
Converging focal point after system deviates.Fig. 8 shows the astigmatism curve of the imaging lens of embodiment 2, and it represents meridianal image surface bending
Bent with sagittal image surface.Fig. 9 shows the distortion curve of the imaging lens of embodiment 2, abnormal in the case of its expression different visual angles
Become sizes values.Figure 10 shows the relative illumination curve of the imaging lens of embodiment 2, and it represents that surrounding pictures are bright and drawn with center
Face light ratio, reflects picture light uniformity.In summary and reference picture 7 to Figure 10 can be seen that according to embodiment 2 into
As camera lens be a kind of large aperture, high relative luminance, wide angle, good image quality imaging lens.
Embodiment 3
Figure 11 is the structural representation for the imaging lens for showing embodiment 3.Reference picture 11 and according to described above
, imaging lens by thing side to image side successively include the first lens E1, the second lens E2, the 3rd lens E3, the 4th lens E4 with
And the 5th lens E5.
Table 6 show the surface type of each lens in the imaging lens in the embodiment, radius of curvature, thickness, refractive index,
Abbe number and circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 6
Table 7 below shows the high order term coefficient of each aspherical S1-S10 available for each non-spherical lens in the embodiment
A4、A6、A8、A10、A12、A14And A16.Wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 3.9878E-03 | -2.2125E-04 | 9.1487E-06 | -2.4679E-07 | 4.1969E-09 | -3.9470E-11 | 1.5242E-13 |
| S2 | 9.1988E-03 | -1.2003E-03 | 1.0237E-04 | -5.3700E-06 | 1.6807E-07 | -2.9078E-09 | 2.1521E-11 |
| S3 | 5.4197E-03 | -9.4525E-03 | 3.9457E-03 | -1.0650E-03 | 1.5893E-04 | -1.3346E-05 | 4.6780E-07 |
| S4 | -4.8952E-02 | 7.3165E-02 | -7.0543E-02 | 5.1403E-02 | -2.0970E-02 | 4.8084E-03 | -4.5752E-04 |
| S5 | 4.0860E-03 | -5.4065E-03 | 2.2594E-03 | -6.3322E-04 | 1.0293E-04 | -9.0134E-06 | 3.0913E-07 |
| S6 | -2.0377E-02 | 9.6595E-04 | 9.9352E-04 | -6.9453E-04 | 2.0110E-04 | -2.6801E-05 | 1.4101E-06 |
| S7 | -3.2453E-03 | 2.6154E-03 | -7.5611E-04 | 9.8857E-05 | -1.0732E-05 | 3.4432E-07 | -5.9364E-09 |
| S8 | -1.1613E-02 | 6.9425E-03 | -1.6759E-03 | 1.4598E-04 | -7.3967E-06 | 3.3301E-07 | -4.6936E-09 |
| S9 | -4.0872E-02 | 1.1774E-03 | -4.5816E-04 | 1.3441E-04 | -1.4359E-05 | 5.7535E-07 | -9.2178E-09 |
| S10 | -5.1639E-03 | -6.7735E-03 | 1.5011E-03 | -1.8255E-04 | 1.2650E-05 | -4.8401E-07 | 7.5549E-09 |
Table 7
Figure 12 shows chromatic curve on the axle of the imaging lens of embodiment 3, and it represents the light of different wave length via light
Converging focal point after system deviates.Figure 13 shows the astigmatism curve of the imaging lens of embodiment 3, and it represents that meridianal image surface is curved
The bending of bent and sagittal image surface.Figure 14 shows the distortion curve of the imaging lens of embodiment 3, and it is represented in the case of different visual angles
Distort sizes values.Figure 15 shows the relative illumination curve of the imaging lens of embodiment 3, and it represents surrounding pictures light and center
Picture light ratio, reflect picture light uniformity.In summary and reference picture 12 can be seen that to Figure 15
Imaging lens according to embodiment 3 be a kind of large aperture, high relative luminance, wide angle, good image quality into
As camera lens.
Embodiment 4
Figure 16 is the structural representation for the imaging lens for showing embodiment 4.Reference picture 16 and according to described above
, according to the imaging lens of embodiment 4 by thing side to image side successively include the first lens E1, the second lens E2, the 3rd lens E3,
4th lens E4 and the 5th lens E5.
Table 8 below shows the surface type of each lens, radius of curvature, thickness, refraction in the imaging lens in the embodiment
Rate, abbe number and circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 8
Table 9 below shows the high order term coefficient of each aspherical S1-S10 available for each non-spherical lens in the embodiment
A4、A6、A8、A10、A12、A14And A16.Wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 9
Figure 17 shows chromatic curve on the axle of the imaging lens of embodiment 4, and it represents the light of different wave length via light
Converging focal point after system deviates.Figure 18 shows the astigmatism curve of the imaging lens of embodiment 4, and it represents that meridianal image surface is curved
The bending of bent and sagittal image surface.Figure 19 shows the distortion curve of the imaging lens of embodiment 4, and it is represented in the case of different visual angles
Distort sizes values.Figure 20 shows the relative illumination curve of the imaging lens of embodiment 4, and it represents surrounding pictures light and center
Picture light ratio, reflect picture light uniformity.In summary and reference picture 17 can be seen that according to embodiment 4 to Figure 20
Imaging lens be a kind of large aperture, high relative luminance, wide angle, the imaging lens of good image quality.
Embodiment 5
Figure 21 is the structural representation for the imaging lens for showing embodiment 5.Reference picture 21 and according to described above
, according to the imaging lens of embodiment 5 by thing side to image side successively include the first lens E1, the second lens E2, the 3rd lens E3,
4th lens E4 and the 5th lens E5.
Table 10 below shows the surface type of each lens, radius of curvature, thickness, refraction in the imaging lens in the embodiment
Rate, abbe number and circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 10
Table 11 below shows the high order term system of each aspherical S1-S10 available for each non-spherical lens in the embodiment
Number A4、A6、A8、A10、A12、A14And A16.Wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 1.2707E-02 | -1.9511E-03 | 2.2354E-04 | -1.6499E-05 | 7.5069E-07 | -1.9038E-08 | 2.0878E-10 |
| S2 | 1.5174E-02 | -3.1832E-03 | 5.3507E-04 | -5.9884E-05 | 4.1174E-06 | -1.5277E-07 | 2.3078E-09 |
| S3 | 1.2690E-02 | -3.2960E-02 | 2.5731E-02 | -1.1304E-02 | 2.7434E-03 | -3.5229E-04 | 1.7918E-05 |
| S4 | -1.6970E-01 | 3.3129E-01 | -5.9784E-01 | 8.0103E-01 | -6.6950E-01 | 2.9886E-01 | -5.3808E-02 |
| S5 | -1.0676E-02 | 7.6770E-03 | -1.6177E-02 | 1.6991E-02 | -8.5129E-03 | 2.0034E-03 | -1.7996E-04 |
| S6 | -8.8309E-02 | 3.7772E-02 | -1.6240E-02 | -3.3808E-04 | 2.9500E-03 | -8.8405E-04 | 7.9929E-05 |
| S7 | -2.4350E-02 | 2.1144E-02 | -1.2339E-02 | 4.0102E-03 | -7.2379E-04 | 6.7526E-05 | -2.5316E-06 |
| S8 | -7.7622E-02 | 5.1981E-02 | -2.2034E-02 | 6.3112E-03 | -1.0535E-03 | 9.1247E-05 | -3.1842E-06 |
| S9 | -1.1137E-01 | 1.7140E-02 | -1.0223E-02 | 6.4028E-03 | -1.7771E-03 | 2.3058E-04 | -1.1685E-05 |
| S10 | 3.1667E-03 | -4.1313E-02 | 2.1930E-02 | -6.4894E-03 | 1.1313E-03 | -1.0496E-04 | 3.9159E-06 |
Table 11
Figure 22 shows chromatic curve on the axle of the imaging lens of embodiment 5, and it represents the light of different wave length via light
Converging focal point after system deviates.Figure 23 shows the astigmatism curve of the imaging lens of embodiment 5, and it represents that meridianal image surface is curved
The bending of bent and sagittal image surface.Figure 24 shows the distortion curve of the imaging lens of embodiment 5, and it is represented in the case of different visual angles
Distort sizes values.Figure 25 shows the relative illumination curve of the imaging lens of embodiment 5, and it represents surrounding pictures light and center
Picture light ratio, reflect picture light uniformity.In summary and reference picture 22 can be seen that according to embodiment 5 to Figure 25
Imaging lens be a kind of large aperture, high relative luminance, wide angle, the imaging lens of good image quality.
Embodiment 6
Figure 26 is the structural representation for the imaging lens for showing embodiment 6.Reference picture 26 and according to described above
, the imaging lens of embodiment 6 include the first lens E1, the second lens E2, the 3rd lens E3, the 4th successively by thing side to image side
Lens E4 and the 5th lens E5.
Table 12 below shows the surface type of each lens, radius of curvature, thickness, refraction in the imaging lens in the embodiment
Rate, abbe number and circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 12
Table 13 below shows the high order term system of each aspherical S1-S10 available for each non-spherical lens in the embodiment
Number A4、A6、A8、A10、A12、A14And A16.Wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 6.2659E-03 | -5.9802E-04 | 4.2501E-05 | -1.9293E-06 | 5.4198E-08 | -8.5643E-10 | 5.9122E-12 |
| S2 | 7.3792E-03 | -1.0189E-03 | 1.1126E-04 | -7.6866E-06 | 3.1636E-07 | -6.9773E-09 | 6.2871E-11 |
| S3 | 1.3749E-02 | -1.5143E-02 | 6.4321E-03 | -1.6159E-03 | 2.2106E-04 | -1.5090E-05 | 3.4670E-07 |
| S4 | -6.1876E-02 | 7.6986E-02 | -1.1055E-01 | 1.1076E-01 | -6.5856E-02 | 2.0040E-02 | -2.3824E-03 |
| S5 | -7.5171E-03 | 4.5988E-03 | -5.2098E-03 | 3.1366E-03 | -9.6631E-04 | 1.4611E-04 | -8.6597E-06 |
| S6 | -5.2585E-02 | 1.9331E-02 | -7.4046E-03 | 1.5242E-03 | -1.0935E-04 | -6.4066E-06 | 9.2434E-07 |
| S7 | -1.0349E-02 | 5.2755E-03 | -2.1270E-03 | 4.7350E-04 | -5.6499E-05 | 3.3914E-06 | -8.0435E-08 |
| S8 | -4.4764E-02 | 1.7924E-02 | -4.7375E-03 | 8.4271E-04 | -8.6118E-05 | 4.5183E-06 | -9.4324E-08 |
| S9 | -6.2792E-02 | 4.6520E-03 | -8.8900E-04 | 5.5959E-04 | -1.1964E-04 | 1.0970E-05 | -3.8216E-07 |
| S10 | -1.9007E-02 | -7.5421E-03 | 4.3545E-03 | -1.0907E-03 | 1.4769E-04 | -1.0150E-05 | 2.7401E-07 |
Table 13
Figure 27 shows chromatic curve on the axle of the imaging lens of embodiment 6, and it represents the light of different wave length via light
Converging focal point after system deviates.Figure 28 shows the astigmatism curve of the imaging lens of embodiment 6, and it represents that meridianal image surface is curved
The bending of bent and sagittal image surface.Figure 29 shows the distortion curve of the imaging lens of embodiment 6, and it is represented in the case of different visual angles
Distort sizes values.Figure 30 shows the relative illumination curve of the imaging lens of embodiment 6, and it represents surrounding pictures light and center
Picture light ratio, reflect picture light uniformity.In summary and reference picture 27 can be seen that according to embodiment 6 to Figure 30
Imaging lens be a kind of large aperture, high relative luminance, wide angle, the imaging lens of good image quality.
Put it briefly, in above-described embodiment 1 to 6, each conditional meets the condition of table 14 below.
| Conditional/embodiment | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| f/EPD | 1.20 | 1.20 | 1.20 | 1.20 | 1.60 | 1.55 |
| f1/f | 7.11 | 6.25 | 12.05 | 5.82 | 6.55 | 6.80 |
| DT11/DT52 | 2.08 | 1.86 | 2.75 | 2.05 | 1.93 | 2.03 |
| DT11/ImgH | 1.31 | 1.95 | 2.89 | 2.03 | 2.01 | 2.07 |
| f12/f | -3.40 | -2.48 | -2.90 | -2.89 | -2.56 | -2.55 |
| R3/R6 | -0.97 | -0.74 | -0.89 | -1.10 | -0.61 | -0.60 |
| f1/f3 | 5.02 | 2.08 | 3.90 | 1.60 | 2.25 | 2.34 |
| ImgH/f | 1.12 | 1.13 | 1.24 | 1.13 | 1.16 | 1.11 |
| f3/f | 1.42 | 3.00 | 3.09 | 3.63 | 2.91 | 2.90 |
| DT11/DT21 | 2.06 | 2.50 | 3.28 | 2.64 | 2.51 | 2.54 |
| ∣f/f5∣ | 0.18 | 0.12 | 0.02 | 0.00 | 0.17 | 0.08 |
Table 14
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the particular combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the inventive concept, carried out by above-mentioned technical characteristic or its equivalent feature
The other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (28)
1. a kind of imaging lens, sequentially included by thing side to image side：
The first lens with positive light coke；
The second lens with focal power, its thing side are convex surface, and image side surface is concave surface；
The 3rd lens with positive light coke, its image side surface are convex surface；
The 4th lens with focal power；
The 5th lens with focal power, its thing side are convex surface；
Characterized in that, meet 5.5 between the effective focal length f1 of the effective focal length f of the imaging lens and first lens<
f1/f<25。
2. imaging lens according to claim 1, it is characterised in that the effective focal length f of the imaging lens with it is described into
As camera lens entrance pupil diameter EPD between meet f/EPD≤1.6.
3. imaging lens according to claim 1 or 2, it is characterised in that the effective radius of the first lens thing side
Meet 1.8 between the effective radius DT52 of DT11 and the 5th lens image side surface<DT11/DT52<2.8.
4. imaging lens according to claim 1, it is characterised in that the effective radius DT11 of the first lens thing side
Meet 1.3 between the half ImgH of effective pixel area diagonal line length on imaging surface<DT11/ImgH<3.
5. imaging lens according to claim 1, it is characterised in that the combination of first lens and second lens
Meet -3.5 between focal length f12 and the effective focal length f of the imaging lens<f12/f<-2.6.
6. imaging lens according to claim 5, it is characterised in that the radius of curvature R 3 of the second lens thing side with
Meet -1.2 between the radius of curvature R 6 of the 3rd lens image side surface<R3/R6<-0.5.
7. according to the imaging lens any one of claim 4-6, it is characterised in that the first lens thing side surface and
An at least surface has an at least point of inflexion in the surface of image side.
8. according to the imaging lens any one of claim 4-6, it is characterised in that effective pixel region on the imaging surface
Meet ImgH/f >=1.1 between the half ImgH of domain diagonal line length and the effective focal length f of the imaging lens.
9. according to the imaging lens any one of claim 4-6, it is characterised in that the effective focal length of first lens
Meet 1.5 between the effective focal length f3 of f1 and the 3rd lens<f1/f3<8.
10. according to the imaging lens any one of claim 4-6, it is characterised in that effective Jiao of the 3rd lens
Away from 1.4≤f3/f of satisfaction between f3 and the effective focal length f of the imaging lens<3.8.
11. imaging lens according to claim 1, it is characterised in that the effective radius of the first lens thing side
Meet 2 between DT11 and the effective radius DT21 of the second lens thing side<DT11/DT21<3.4.
12. imaging lens according to claim 11, it is characterised in that the effective focal length f5 of the 5th lens with it is described
Man Zu ∣ f/f5 ∣ between the effective focal length f of imaging lens<0.2.
13. imaging lens according to claim 12, it is characterised in that set between the 5th lens and the imaging surface
It is equipped with infrared band pass filter.
14. according to the imaging lens any one of claim 11-13, it is characterised in that in second lens and institute
State and be provided with diaphragm between the 3rd lens.
15. a kind of imaging lens, sequentially included by thing side to image side：
The first lens with positive light coke；
The second lens with focal power, its thing side are convex surface, and image side surface is concave surface；
The 3rd lens with positive light coke, its image side surface are convex surface；
The 4th lens with focal power；
The 5th lens with focal power, its thing side are convex surface；
Characterized in that, the effective radius DT11 of the first lens thing side and effective pixel area diagonal line length on imaging surface
Half ImgH between meet 1.3<DT11/ImgH<3.
16. imaging lens according to claim 15, it is characterised in that the effective focal length f of the imaging lens with it is described
Meet f/EPD≤1.6 between the entrance pupil diameter EPD of imaging lens.
17. the imaging lens according to claim 15 or 16, it is characterised in that effectively the half of the first lens thing side
Meet 1.8 between the effective radius DT52 of footpath DT11 and the 5th lens image side surface<DT11/DT52<2.8.
18. imaging lens according to claim 16, it is characterised in that the effective focal length f of the imaging lens with it is described
Meet 5.5 between the effective focal length f1 of first lens<f1/f<25.
19. imaging lens according to claim 15, it is characterised in that the group of first lens and second lens
Meet -3.5 between complex focus f12 and the effective focal length f of the imaging lens<f12/f<-2.6.
20. imaging lens according to claim 19, it is characterised in that the radius of curvature R 3 of the second lens thing side
Meet -1.2 between the radius of curvature R 6 of the 3rd lens image side surface<R3/R6<-0.5.
21. according to the imaging lens any one of claim 18-20, it is characterised in that the first lens thing side table
An at least surface has an at least point of inflexion in face and image side surface.
22. according to the imaging lens any one of claim 18-20, it is characterised in that effective picture on the imaging surface
Meet ImgH/f >=1.1 between the half ImgH of plain region diagonal line length and the effective focal length f of the imaging lens.
23. according to the imaging lens any one of claim 18-20, it is characterised in that first lens it is effective
Meet 1.5 between the effective focal length f3 of focal length f1 and the 3rd lens<f1/f3<8.
24. according to the imaging lens any one of claim 18-20, it is characterised in that the 3rd lens it is effective
Meet 1.4≤f3/f between focal length f3 and the effective focal length f of the imaging lens<3.8.
25. imaging lens according to claim 15, it is characterised in that the effective radius of the first lens thing side
Meet 2 between DT11 and the effective radius DT21 of the second lens thing side<DT11/DT21<3.4.
26. imaging lens according to claim 25, it is characterised in that the effective focal length f5 of the 5th lens with it is described
Man Zu ∣ f/f5 ∣ between the effective focal length f of imaging lens<0.2.
27. imaging lens according to claim 26, it is characterised in that set between the 5th lens and the imaging surface
It is equipped with infrared band pass filter.
28. according to the imaging lens any one of claim 25-27, it is characterised in that in second lens and institute
State and be provided with diaphragm between the 3rd lens.
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| CN201720938617.7U CN207008163U (en) | 2017-07-31 | 2017-07-31 | Imaging lens |
| PCT/CN2018/077349 WO2019024493A1 (en) | 2017-07-31 | 2018-02-27 | Imaging lens |
| US16/224,713 US10996439B2 (en) | 2017-07-31 | 2018-12-18 | Imaging lens assembly |
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|---|---|---|---|
| CN201720938617.7U CN207008163U (en) | 2017-07-31 | 2017-07-31 | Imaging lens |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329235A (en) * | 2017-07-31 | 2017-11-07 | 浙江舜宇光学有限公司 | Imaging lens |
| WO2019024493A1 (en) * | 2017-07-31 | 2019-02-07 | 浙江舜宇光学有限公司 | Imaging lens |
| CN113721345A (en) * | 2021-08-11 | 2021-11-30 | 江西晶超光学有限公司 | Optical system, lens module and electronic equipment |
-
2017
- 2017-07-31 CN CN201720938617.7U patent/CN207008163U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329235A (en) * | 2017-07-31 | 2017-11-07 | 浙江舜宇光学有限公司 | Imaging lens |
| WO2019024493A1 (en) * | 2017-07-31 | 2019-02-07 | 浙江舜宇光学有限公司 | Imaging lens |
| CN107329235B (en) * | 2017-07-31 | 2022-11-22 | 浙江舜宇光学有限公司 | Imaging lens |
| CN113721345A (en) * | 2021-08-11 | 2021-11-30 | 江西晶超光学有限公司 | Optical system, lens module and electronic equipment |
| CN113721345B (en) * | 2021-08-11 | 2022-08-19 | 江西晶超光学有限公司 | Optical system, lens module and electronic equipment |
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