CN209297019U - Imaging lens - Google Patents
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- CN209297019U CN209297019U CN201822146426.4U CN201822146426U CN209297019U CN 209297019 U CN209297019 U CN 209297019U CN 201822146426 U CN201822146426 U CN 201822146426U CN 209297019 U CN209297019 U CN 209297019U
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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, the 5th lens, the 6th lens, the 7th lens and the 8th lens with focal power by object side to image side along optical axis.Wherein, the second lens, the 6th lens and the 7th lens all have positive light coke；The image side surface of the third lens is concave surface；The object side of 6th lens is concave surface；The object side of 8th lens is concave surface.First lens all have airspace between two lens of arbitrary neighborhood into the 8th lens.
Description
Technical field
This application involves a kind of imaging lens, more particularly, to a kind of imaging lens including eight lens.
Background technique
In recent years, with the development of science and technology, demand of the market to the imaging lens for being suitable for portable electronic product
It gradually increases.On the one hand, with the fast development of mobile lens mould group, especially large scale, high pixel CMOS chip it is universal,
Cell phone manufacturer proposes more harsh requirement to the image quality of camera lens.On the other hand, mentioning with CCD and cmos element performance
High and size reduction, for the high image quality of imaging system to match and miniaturization, more stringent requirements are proposed.
In order to meet shooting needs, gradually to requirement of the miniaturization imaging system to match in pixel and image quality
Promoted, imaging lens gradually towards large aperture, big visual angle and high-resolution develop, therefore, can have both simultaneously miniaturization and
The imaging lens of high image quality are current beforehand research directions.
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.
On the one hand, this application provides such a imaging lens, the imaging lens along optical axis by object side to image side according to
Sequence includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th with focal power
Lens and the 8th lens.Wherein, the second lens, the 6th lens and the 7th lens can have positive light coke；The picture of the third lens
Side can be concave surface；The object side of 6th lens can be concave surface；The object side of 8th lens can be concave surface.Wherein, the first lens
Can have airspace between two lens of arbitrary neighborhood into the 8th lens.
In one embodiment, total effective focal length f of the effective focal length f2 of the second lens and imaging lens can meet 0.5
< f2/f < 1.3.
In one embodiment, the half ImgH of effective pixel area diagonal line length and on the imaging surface of imaging lens
The effective focal length f6 of six lens can meet 0 < ImgH/f6 < 1.
In one embodiment, the curvature of the image side surface of the radius of curvature R 5 and the third lens of the object side of the third lens
Radius R6 can meet 0.3 < | R6/R5 | < 0.8.
In one embodiment, center thickness CT1 and second lens of first lens on optical axis on optical axis in
Heart thickness CT2 can meet 2 < (CT2+CT1)/(CT2-CT1) < 3.
In one embodiment, the song of the object side of the radius of curvature R 11 and the 8th lens of the object side of the 6th lens
Rate radius R15 can meet 0 < R15/R11 < 1.
In one embodiment, spacing distance T34 and the 7th lens on optical axis of the third lens and the 4th lens and
Spacing distance T78 of 8th lens on optical axis can meet 0 < T34/T78 < 1.3.
In one embodiment, the combined focal length f123 of the first lens, the second lens and the third lens and the 4th lens,
The combined focal length f4567 of 5th lens, the 6th lens and the 7th lens can meet 1.1 < f123/f4567 < 2.
In one embodiment, the object side of the first lens to imaging lens distance TTL of the imaging surface on optical axis
0.5 < TTL/f7 < 1.4 can be met with the effective focal length f7 of the 7th lens.
In one embodiment, the first lens to the 8th lens respectively the summation ∑ CT of the center thickness on optical axis with
First lens summation ∑ AT of spacing distance of two lens of arbitrary neighborhood on optical axis into the 8th lens can meet 2 < ∑ CT/
∑ AT < 2.5.
In one embodiment, total effective focal length f of imaging lens and the Entry pupil diameters EPD of imaging lens can meet f/
EPD < 2.
On the other hand, this application provides such a imaging lens, and the imaging lens are along optical axis by object side to image side
It sequentially include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, with focal power
Seven lens and the 8th lens.Wherein, the second lens, the 6th lens and the 7th lens can have positive light coke；The third lens
Image side surface can be concave surface；The object side of 6th lens can be concave surface；The object side of 8th lens can be concave surface.Wherein, imaging lens
The half ImgH of the effective pixel area diagonal line length and effective focal length f6 of the 6th lens can meet 0 < on the imaging surface of head
ImgH/f6 < 1.
On the other hand, this application provides such a imaging lens, and the imaging lens are along optical axis by object side to image side
It sequentially include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, with focal power
Seven lens and the 8th lens.Wherein, the second lens, the 6th lens and the 7th lens can have positive light coke；The third lens
Image side surface can be concave surface；The object side of 6th lens can be concave surface；The object side of 8th lens can be concave surface.Wherein, second thoroughly
The effective focal length f2 of mirror and total effective focal length f of imaging lens can meet 0.5 < f2/f < 1.3.
In another aspect, the imaging lens are along optical axis by object side to image side this application provides such a imaging lens
It sequentially include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, with focal power
Seven lens and the 8th lens.Wherein, the second lens, the 6th lens and the 7th lens can have positive light coke；The third lens
Image side surface can be concave surface；The object side of 6th lens can be concave surface；The object side of 8th lens can be concave surface.Wherein, third is saturating
The radius of curvature R 6 of the image side surface of the radius of curvature R 5 and the third lens of the object side of mirror can meet 0.3 < | R6/R5 | < 0.8.
In another aspect, the imaging lens are along optical axis by object side to image side this application provides such a imaging lens
It sequentially include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, with focal power
Seven lens and the 8th lens.Wherein, the second lens, the 6th lens and the 7th lens can have positive light coke；The third lens
Image side surface can be concave surface；The object side of 6th lens can be concave surface；The object side of 8th lens can be concave surface.Wherein, first thoroughly
Center thickness CT2 of center thickness CT1 and second lens of the mirror on optical axis on optical axis can meet 2 < (CT2+CT1)/
(CT2-CT1) 3 <.
In another aspect, the imaging lens are along optical axis by object side to image side this application provides such a imaging lens
It sequentially include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, with focal power
Seven lens and the 8th lens.Wherein, the second lens, the 6th lens and the 7th lens can have positive light coke；The third lens
Image side surface can be concave surface；The object side of 6th lens can be concave surface；The object side of 8th lens can be concave surface.Wherein, first thoroughly
Mirror is to the 8th lens summation ∑ CT of the center thickness on optical axis and the first lens arbitrary neighborhood two into the 8th lens respectively
The summation ∑ AT of spacing distance of the lens on optical axis can meet 2 < ∑ CT/ ∑ AT < 2.5.
In another aspect, the imaging lens are along optical axis by object side to image side this application provides such a imaging lens
It sequentially include: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, with focal power
Seven lens and the 8th lens.Wherein, the second lens, the 6th lens and the 7th lens can have positive light coke；The third lens
Image side surface can be concave surface；The object side of 6th lens can be concave surface；The object side of 8th lens can be concave surface.Wherein, first thoroughly
The combined focal length f123 of mirror, the second lens and the third lens and the group of the 4th lens, the 5th lens, the 6th lens and the 7th lens
Complex focus f4567 can meet 1.1 < f123/f4567 < 2.
The application use eight lens, by each power of lens of reasonable distribution, face type, each lens center thickness
And spacing etc. on the axis between each lens, so that above-mentioned optical lens group has miniaturization, ultra-thin, large aperture, height at image quality
At least one beneficial effect such as amount.
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；
Fig. 2A to Fig. 2 D respectively illustrates chromatic curve on the axis of the imaging lens of embodiment 1, astigmatism curve, distortion curve
And ratio chromatism, curve；
Fig. 3 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 2；
Fig. 4 A to Fig. 4 D respectively illustrates chromatic curve on the axis of the imaging lens of embodiment 2, astigmatism curve, distortion curve
And ratio chromatism, curve；
Fig. 5 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 3；
Fig. 6 A to Fig. 6 D respectively illustrates chromatic curve on the axis of the imaging lens of embodiment 3, astigmatism curve, distortion curve
And ratio chromatism, curve；
Fig. 7 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 4；
Fig. 8 A to Fig. 8 D respectively illustrates chromatic curve on the axis of the imaging lens of embodiment 4, astigmatism curve, distortion curve
And ratio chromatism, curve；
Fig. 9 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 5；
Figure 10 A to Figure 10 D respectively illustrates chromatic curve on the axis of the imaging lens of embodiment 5, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Figure 11 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 6；
Figure 12 A to Figure 12 D respectively illustrates chromatic curve on the axis of the imaging lens of embodiment 6, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Figure 13 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 7；
Figure 14 A to Figure 14 D respectively illustrates chromatic curve on the axis of the imaging lens of embodiment 7, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Figure 15 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 8；
Figure 16 A to Figure 16 D respectively illustrates chromatic curve on the axis of the imaging lens of embodiment 8, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Figure 17 shows the structural schematic diagrams according to the imaging lens of the embodiment of the present application 9；
Figure 18 A to Figure 18 D respectively illustrates chromatic curve on the axis of the imaging lens of embodiment 9, astigmatism curve, distortion song
Line and ratio chromatism, curve；
Figure 19 shows the structural schematic diagram of the imaging lens according to the embodiment of the present application 10；
Figure 20 A to Figure 20 D respectively illustrates chromatic curve on the axis of the imaging lens of embodiment 10, astigmatism curve, distortion
Curve and ratio chromatism, curve.
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.Each lens are known as this thoroughly near the surface of subject
The object side of mirror, each lens are known as the image side surface of the lens near the surface of imaging surface.
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 eight lens with focal power, that is,
First lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens.This eight
Piece lens are along optical axis by object side to image side sequential.In the first lens into the 8th lens, between two lens of arbitrary neighborhood
Can have airspace.
In the exemplary embodiment, the first lens have focal power；Second lens can have positive light coke；The third lens
With focal power, image side surface can be concave surface；4th lens have focal power；5th lens have focal power；6th lens can
With positive light coke, object side can be concave surface；7th lens can have positive light coke；8th lens have focal power, object
Side can be concave surface.Positive and negative distribution and light-inletting quantity by the focal power of each constituent element of reasonable control system come effective
The low order aberration of balance control system, while by control full filed angle, to efficiently control the areas imaging of system.
In the exemplary embodiment, the object side of the first lens can be convex surface, and image side surface can be concave surface；Second lens
Object side can be convex surface；The third lens can have negative power, and object side can be convex surface；The object side of 5th lens can be convex
Face, image side surface can be concave surface；The image side surface of 6th lens can be convex surface；The object side of 7th lens can be convex surface；8th lens
There can be negative power, image side surface can be concave surface.
In the exemplary embodiment, conditional f/EPD < 2 can be met according to the imaging lens of the application, wherein f is
Total effective focal length of imaging lens, EPD are the Entry pupil diameters of imaging lens.More specifically, f and EPD can further meet 1.80
≤f/EPD≤1.98.Total effective focal length f of the imaging lens and Entry pupil diameters EPD of imaging lens meets the configuration of f/EPD < 2,
It can make system that there is large aperture, large aperture advantage during increasing light passing amount, thus reducing the aberration of peripheral field
Enhance the imaging effect under dark situation simultaneously, so that system has low sensitivity.
In the exemplary embodiment, 0.5 < f2/f < 1.3, f2 of conditional can be met according to the imaging lens of the application
For the effective focal length of the second lens, f is total effective focal length of imaging lens.More specifically, f2 and f can further meet 0.87≤
f2/f≤0.92.Second power of lens is controlled in zone of reasonableness, can be effectively controlled the whole focal length of imaging lens, simultaneously
There are also the effects of the balance curvature of field.
In the exemplary embodiment, 0 < ImgH/f6 < 1 of conditional can be met according to the imaging lens of the application,
In, ImgH is the half of effective pixel area diagonal line length on the imaging surface of imaging lens, and f6 is the effective focal length of the 6th lens.
More specifically, ImgH and f6 can further meet 0.4 < ImgH/f6 < 0.7, for example, 0.48≤ImgH/f6≤0.61.Pass through
Rationally control ImgH and f6, can compress the overall size of imaging system, effectively to realize the miniaturization of imaging system.
In the exemplary embodiment, 0.3 < of conditional can be met according to the imaging lens of the application | R6/R5 | < 0.8,
Wherein, R5 is the radius of curvature of the object side of the third lens, and R6 is the radius of curvature of the image side surface of the third lens.More specifically,
R6 and R5 can further meet 0.52≤| R6/R5 |≤0.61.By the radius of curvature of reasonable disposition lens, can effectively eliminate
Optical lens group spherical aberration, obtains image high-definition.
In the exemplary embodiment, 2 < of conditional (CT2+CT1)/(CT2- can be met according to the imaging lens of the application
CT1) 3 <, wherein CT1 is center thickness of first lens on optical axis, and CT2 is center thickness of second lens on optical axis.
More specifically, CT1 and CT2 can further meet 2.14≤(CT2+CT1)/(CT2-CT1)≤2.73.Rationally the first lens of control
The center thickness of center thickness and the second lens on optical axis on optical axis, facilitates lens dimension and is evenly distributed, and guarantees
Assemble stable, and help to reduce the aberration of entire imaging lens, shorten the overall length of imaging lens.
In the exemplary embodiment, 0 < R15/R11 < 1 of conditional can be met according to the imaging lens of the application,
In, R11 is the radius of curvature of the object side of the 6th lens, and R15 is the radius of curvature of the object side of the 8th lens.More specifically,
R11 and R15 can further meet 0.4 < R15/R11 < 0.8, for example, 0.49≤R15/R11≤0.77.By being rationally arranged
The radius of curvature of six lens object sides and the radius of curvature of the 8th lens object side, convenient for control light deviation angle, make be
System can be easy matching conventional chip.
In the exemplary embodiment, 0 < T34/T78 < 1.3 of conditional can be met according to the imaging lens of the application,
In, T34 is the spacing distance of the third lens and the 4th lens on optical axis, and T78 is the 7th lens and the 8th lens on optical axis
Spacing distance.More specifically, T34 and T78 can further meet 0.5 < T34/T78 < 1.1, for example, 0.69≤T34/T78
≤1.06.By between the air of reasonable disposition the third lens and the 4th lens and the 7th lens and the 8th lens on optical axis
Every can be effectively reduced the thickness-sensitive of camera lens, correct the curvature of field.
In the exemplary embodiment, 2 < ∑ CT/ ∑ AT < 2.5 of conditional can be met according to the imaging lens of the application,
Wherein, ∑ CT is the summation of the first lens to the 8th lens center thickness on optical axis respectively, and ∑ AT is the first lens to the
The summation of spacing distance of two lens of arbitrary neighborhood on optical axis in eight lens.More specifically, ∑ CT and ∑ AT can further expire
Foot 2.10≤∑ CT/ ∑ AT≤2.28.Have by the center thickness and arbitrary neighborhood two of each lens of effective control system
Airspace between the lens of focal power on optical axis makes to balance between each lens edge thickness and lens center thickness steady
Fixed, room for promotion utilization rate reduces machining eyeglass and assembling difficulty, while ensure that camera lens miniaturization, enhances system
Aberration correcting capability.
In the exemplary embodiment, 1.1 < f123/f4567 < of conditional can be met according to the imaging lens of the application
2, wherein f123 be the first lens, the second lens and the third lens combined focal length, f4567 be the 4th lens, the 5th lens,
The combined focal length of 6th lens and the 7th lens.More specifically, f123 and f4567 can further meet 1.58≤f123/f4567
≤1.77.By reasonable disposition system focal power, can effectively correct the distortion of image planes paraxial region, thus improve system at
Image quality amount.
In the exemplary embodiment, 0.5 < TTL/f7 < 1.4 of conditional can be met according to the imaging lens of the application,
Wherein, TTL is the object side of the first lens to distance of the imaging surface on optical axis of imaging lens, and f7 is the effective of the 7th lens
Focal length.More specifically, TTL and f7 can further meet 0.82≤TTL/f7≤1.14.Pass through the optics overall length to imaging lens
The reasonable control of degree and the 7th lens effective focal length, can compress the overall size of imaging lens, effectively to realize imaging lens
Ultra-slim features and miniaturization, so that above-mentioned imaging lens can preferably be suitable for size-constrained system.
In the exemplary embodiment, above-mentioned imaging lens may also include diaphragm, to promote the image quality of lens group.Light
Door screen may be provided between object side and the first lens.
Optionally, above-mentioned optical imaging lens may also include optical filter for correcting color error ratio and/or for protecting
The protection glass of photosensitive element on imaging surface.
Multi-disc eyeglass, such as described above eight 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.Imaging lens through the above configuration can also have ultra-thin, macropore
The beneficial effects such as diameter, high imaging quality.
In presently filed embodiment, at least one of mirror surface of each lens is aspherical mirror, that is, first thoroughly
Each of mirror, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens are saturating
At least one of the object side of mirror and image side surface are aspherical mirror.The characteristics of non-spherical lens, is: from lens centre to saturating
Mirror periphery, curvature are consecutive variations.Have the spherical lens of constant curvature different from from lens centre to lens perimeter, aspheric
Face lens have more preferably radius of curvature characteristic, have the advantages that improve and distort aberration and improvement astigmatic image error.Using aspherical
After lens, the aberration occurred when imaging can be eliminated, as much as possible so as to improve image quality.Optionally, first thoroughly
Each of mirror, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens are saturating
The object side of mirror and image side surface are aspherical mirror.
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 eight lens as an example in embodiments, but the imaging lens are not limited to include eight 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 to Fig. 2 D description according to the imaging lens of the embodiment of the present application 1.Fig. 1 is shown according to the application
The structural schematic diagram of the imaging lens of embodiment 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, the 6th lens E6,
7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has negative power, 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
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 1 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the imaging lens of embodiment 1
Coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 1
As shown in Table 1, the object side of any one lens of the first lens E1 into the 8th lens E8 and image side surface are
It is aspherical.In the present embodiment, the face type x of each non-spherical lens is available but is not limited to following aspherical formula and is defined:
Wherein, x be it is aspherical along optical axis direction when being highly the position of h, away from aspheric vertex of surface apart from rise；C is
Aspherical paraxial curvature, c=1/R (that is, 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-S164、A6、A8、A10、A12、A14And A16。
Table 2
Table 3 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S19 in embodiment 1
Distance TTL, maximum angle of half field-of view HFOV, F-number Fno, imaging lens of the object side S1 to imaging surface S19 of E1 on optical axis
Total effective focal length f and each lens effective focal length f1 to f8.
| ImgH(mm) | 3.08 | f3(mm) | -8.88 |
| TTL(mm) | 4.79 | f4(mm) | -34.49 |
| HFOV(°) | 41.3 | f5(mm) | -30.06 |
| Fno | 1.98 | f6(mm) | 5.01 |
| f(mm) | 3.50 | f7(mm) | 5.82 |
| f1(mm) | -49.03 | f8(mm) | -2.70 |
| f2(mm) | 3.20 |
Table 3
Imaging lens in embodiment 1 meet:
F/EPD=1.98, wherein f is total effective focal length of imaging lens, and EPD is the Entry pupil diameters of imaging lens；
F2/f=0.91, wherein f2 is the effective focal length of the second lens E2, and f is total effective focal length of imaging lens；
ImgH/f6=0.61, wherein ImgH is the half of effective pixel area diagonal line length on imaging surface S19, f6 the
The effective focal length of six lens E6；
| R6/R5 |=0.61, wherein R5 is the radius of curvature of the object side S5 of the third lens E3, and R6 is the third lens E3
Image side surface S6 radius of curvature；
(CT2+CT1)/(CT2-CT1)=2.63, wherein CT1 is center thickness of the first lens E1 on optical axis, CT2
For center thickness of the second lens E2 on optical axis；
R15/R11=0.49, wherein R11 is the radius of curvature of the object side S11 of the 6th lens E6, and R15 is the 8th lens
The radius of curvature of the object side S15 of E8；
T34/T78=0.69, wherein T34 is the spacing distance of the third lens E3 and the 4th lens E4 on optical axis, T78
For the spacing distance of the 7th lens E7 and the 8th lens E8 on optical axis；
∑ CT/ ∑ AT=2.14, wherein ∑ CT is that center of the first lens E1 to the 8th lens E8 respectively on optical axis is thick
The summation of degree, ∑ AT be the first lens E1 into the 8th lens E8 spacing distance of two lens of arbitrary neighborhood on optical axis it is total
With；
F123/f4567=1.61, wherein f123 is the group focus of the first lens E1, the second lens E2 and the third lens E3
Away from f4567 is the combined focal length of the 4th lens E4, the 5th lens E5, the 6th lens E6 and the 7th lens E7；
TTL/f7=0.82, wherein TTL is distance of the object side S1 of the first lens E1 to imaging surface S19 on optical axis,
F7 is the effective focal length of the 7th lens E7.
Fig. 2A shows chromatic curve on the axis of the imaging lens of embodiment 1, indicates the light of different wave length via mirror
Converging focal point after head deviates.Fig. 2 B shows the astigmatism curve of the imaging lens of embodiment 1, indicate meridianal image surface bending and
Sagittal image surface bending.Fig. 2 C shows the distortion curve of the imaging lens of embodiment 1, indicates distortion corresponding to different image heights
Sizes values.Fig. 2 D shows the ratio chromatism, curve of the imaging lens of embodiment 1, indicate light via after camera lens in imaging surface
On different image heights deviation.According to fig. 2 A to Fig. 2 D it is found that imaging lens given by embodiment 1 can be realized it is good
Image quality.
Embodiment 2
Referring to Fig. 3 to Fig. 4 D description according to the imaging lens of the embodiment of the present application 2.In the present embodiment and following implementation
In example, for brevity, by clipped description similar to Example 1.Fig. 3 show according to the embodiment of the present application 2 at
As the structural schematic diagram of camera lens.
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, the 6th lens E6,
7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has negative power, 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 convex surface.The third lens E3 has negative power, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 4 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the imaging lens of embodiment 2
Coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 4
As shown in Table 4, in example 2, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 5 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 2, wherein each non-
Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -1.1234E-01 | 1.9078E-02 | -2.7856E-03 | 5.0379E-03 | 5.9393E-03 | -8.1504E-04 | 2.7585E-04 |
| S2 | -2.3796E-01 | 1.1256E-01 | -4.9457E-03 | 3.6622E-03 | 5.4669E-03 | -4.4079E-04 | 1.1285E-04 |
| S3 | -1.4007E-01 | 2.8707E-02 | 2.1642E-03 | -2.6888E-03 | -1.3760E-03 | -2.6555E-04 | -1.7841E-04 |
| S4 | -1.6921E-01 | 4.3343E-02 | -5.4880E-04 | -4.2163E-05 | 8.9260E-04 | -2.4472E-03 | 1.1124E-04 |
| S5 | -1.7554E-01 | 9.5638E-02 | 9.7281E-04 | -2.0006E-03 | -1.2403E-03 | 4.7081E-04 | 2.2634E-05 |
| S6 | -4.1342E-02 | 4.1814E-02 | -2.1081E-03 | -2.2730E-03 | 3.9702E-04 | 1.9762E-03 | 7.4142E-05 |
| S7 | -2.2955E-01 | 5.0660E-01 | -1.3395E+00 | 2.1727E+00 | -1.9792E+00 | 9.8265E-01 | -2.1026E-01 |
| S8 | -2.1341E-01 | 4.5780E-01 | -1.1963E+00 | 1.7942E+00 | -1.4465E+00 | 6.1266E-01 | -1.0859E-01 |
| S9 | -1.5152E-01 | 1.1325E-02 | 1.4577E-03 | 1.6024E-01 | -2.1153E-01 | 1.1144E-01 | -2.2318E-02 |
| S10 | -1.7312E-01 | 4.8958E-02 | 8.6488E-02 | -1.3732E-01 | 9.2683E-02 | -2.7303E-02 | 2.3356E-03 |
| S11 | 4.8231E-02 | 4.7209E-02 | -1.4489E-01 | 1.5134E-01 | -7.4482E-02 | 1.7482E-02 | -1.5736E-03 |
| S12 | 2.7813E-02 | -3.5826E-02 | 9.8033E-02 | -8.8253E-02 | 4.9601E-02 | -1.5298E-02 | 1.9098E-03 |
| S13 | -7.7615E-02 | -3.4605E-02 | 5.0714E-02 | -3.4024E-02 | 1.1902E-02 | -2.1897E-03 | 1.7383E-04 |
| S14 | -5.1481E-03 | -1.7532E-02 | 1.2893E-02 | -8.1610E-03 | 2.6815E-03 | -4.1779E-04 | 2.5368E-05 |
| S15 | -2.0460E-02 | 3.3780E-02 | -1.8005E-02 | 7.1143E-03 | -1.5712E-03 | 1.7278E-04 | -7.3208E-06 |
| S16 | -4.7431E-02 | 2.6330E-03 | 2.0865E-03 | -9.1013E-04 | 1.7088E-04 | -1.5500E-05 | 5.3923E-07 |
Table 5
Table 6 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S19 in embodiment 2
Distance TTL, maximum angle of half field-of view HFOV, F-number Fno, imaging lens of the object side S1 to imaging surface S19 of E1 on optical axis
Total effective focal length f and each lens effective focal length f1 to f8.
| ImgH(mm) | 3.08 | f3(mm) | -8.12 |
| TTL(mm) | 4.72 | f4(mm) | -26.61 |
| HFOV(°) | 41.8 | f5(mm) | -43.73 |
| Fno | 1.98 | f6(mm) | 5.05 |
| f(mm) | 3.44 | f7(mm) | 5.65 |
| f1(mm) | -65.49 | f8(mm) | -2.69 |
| f2(mm) | 3.14 |
Table 6
Fig. 4 A shows chromatic curve on the axis of the imaging lens of embodiment 2, indicates the light of different wave length via mirror
Converging focal point after head deviates.Fig. 4 B shows the astigmatism curve of the imaging lens of embodiment 2, indicate meridianal image surface bending and
Sagittal image surface bending.Fig. 4 C shows the distortion curve of the imaging lens of embodiment 2, indicates distortion corresponding to different image heights
Sizes values.Fig. 4 D shows the ratio chromatism, curve of the imaging lens of embodiment 2, indicate light via after camera lens in imaging surface
On different image heights deviation.According to Fig. 4 A to Fig. 4 D it is found that imaging lens given by embodiment 2 can be realized it is good
Image quality.
Embodiment 3
The imaging lens according to the embodiment of the present application 3 are described referring to Fig. 5 to Fig. 6 D.Fig. 5 is shown according to this Shen
Please embodiment 3 imaging lens structural schematic diagram.
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, the 6th lens E6,
7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
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 convex surface.The third lens E3 has negative power, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 7 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the imaging lens of embodiment 3
Coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 7
As shown in Table 7, in embodiment 3, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 8 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 3, wherein each non-
Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -1.2032E-01 | 4.5870E-02 | -1.0177E-01 | 2.2887E-01 | -2.8196E-01 | 2.1949E-01 | -7.5398E-02 |
| S2 | -2.4062E-01 | 1.3488E-01 | -4.5063E-02 | 4.0592E-02 | 3.7209E-02 | -5.9510E-02 | 2.3457E-02 |
| S3 | -1.3876E-01 | 2.9015E-02 | 3.0029E-03 | -2.2917E-03 | -2.0380E-03 | -2.0280E-03 | -1.7841E-04 |
| S4 | -1.7030E-01 | 4.3197E-02 | -1.3268E-04 | 2.9546E-04 | 2.9959E-04 | -4.1863E-03 | 1.1124E-04 |
| S5 | -1.7410E-01 | 9.5934E-02 | 5.7289E-04 | -2.4976E-03 | -1.1560E-03 | 1.4057E-03 | 2.2634E-05 |
| S6 | -4.3204E-02 | 4.1079E-02 | -2.5663E-03 | -2.2897E-03 | 5.4314E-04 | 2.0012E-03 | 6.4576E-05 |
| S7 | -2.2317E-01 | 4.7155E-01 | -1.3016E+00 | 2.2442E+00 | -2.1624E+00 | 1.1347E+00 | -2.5649E-01 |
| S8 | -1.9867E-01 | 3.7755E-01 | -1.0623E+00 | 1.7053E+00 | -1.4527E+00 | 6.4956E-01 | -1.2165E-01 |
| S9 | -1.5143E-01 | 1.1362E-02 | 1.4572E-03 | 1.6025E-01 | -2.1151E-01 | 1.1147E-01 | -2.2296E-02 |
| S10 | -1.7234E-01 | 4.9700E-02 | 8.6731E-02 | -1.3727E-01 | 9.2673E-02 | -2.7322E-02 | 2.3197E-03 |
| S11 | 7.8132E-02 | -3.4812E-02 | -2.3897E-02 | 4.7940E-02 | -2.2394E-02 | 3.1046E-03 | 9.4302E-05 |
| S12 | 2.3320E-02 | -3.6939E-02 | 1.0819E-01 | -9.8369E-02 | 5.7267E-02 | -1.8522E-02 | 2.4183E-03 |
| S13 | -9.1802E-02 | -2.8712E-02 | 3.7840E-02 | -2.3105E-02 | 6.8082E-03 | -9.7363E-04 | 6.4207E-05 |
| S14 | 1.3111E-02 | -3.8848E-02 | 2.2020E-02 | -9.9975E-03 | 2.5747E-03 | -2.8785E-04 | 8.6755E-06 |
| S15 | -2.2391E-02 | 3.6222E-02 | -1.7063E-02 | 6.1813E-03 | -1.3249E-03 | 1.4531E-04 | -6.2640E-06 |
| S16 | -6.8690E-02 | 1.6849E-02 | -3.8197E-03 | 6.5282E-04 | -8.1025E-05 | 6.7110E-06 | -2.7825E-07 |
Table 8
Table 9 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S19 in embodiment 3
Distance TTL, maximum angle of half field-of view HFOV, F-number Fno, imaging lens of the object side S1 to imaging surface S19 of E1 on optical axis
Total effective focal length f and each lens effective focal length f1 to f8.
| ImgH(mm) | 3.08 | f3(mm) | -6.72 |
| TTL(mm) | 4.64 | f4(mm) | -23.72 |
| HFOV(°) | 42.3 | f5(mm) | -87.39 |
| Fno | 1.98 | f6(mm) | 5.27 |
| f(mm) | 3.38 | f7(mm) | 5.01 |
| f1(mm) | 663.67 | f8(mm) | -2.51 |
| f2(mm) | 3.05 |
Table 9
Fig. 6 A shows chromatic curve on the axis of the imaging lens of embodiment 3, indicates the light of different wave length via mirror
Converging focal point after head deviates.Fig. 6 B shows the astigmatism curve of the imaging lens of embodiment 3, indicate meridianal image surface bending and
Sagittal image surface bending.Fig. 6 C shows the distortion curve of the imaging lens of embodiment 3, indicates the distortion in the case of different image heights
Sizes values.Fig. 6 D shows the ratio chromatism, curve of the imaging lens of embodiment 3, indicate light via after camera lens in imaging surface
On different image heights deviation.According to Fig. 6 A to Fig. 6 D it is found that imaging lens given by embodiment 3 can be realized it is good
Image quality.
Embodiment 4
The imaging lens according to the embodiment of the present application 4 are described referring to Fig. 7 to Fig. 8 D.Fig. 7 is shown according to this Shen
Please embodiment 4 imaging lens structural schematic diagram.
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, the 6th lens E6,
7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
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 convex surface.The third lens E3 has negative power, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 10 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens of embodiment 4
Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 10
As shown in Table 10, in example 4, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 11 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 4, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 11
Table 12 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S19 in embodiment 4
Distance TTL, maximum angle of half field-of view HFOV, F-number Fno, imaging lens of the object side S1 to imaging surface S19 of E1 on optical axis
Total effective focal length f and each lens effective focal length f1 to f8.
| ImgH(mm) | 3.08 | f3(mm) | -6.82 |
| TTL(mm) | 4.52 | f4(mm) | -15.78 |
| HFOV(°) | 43.3 | f5(mm) | 78.62 |
| Fno | 1.98 | f6(mm) | 5.59 |
| f(mm) | 3.27 | f7(mm) | 4.43 |
| f1(mm) | 126.71 | f8(mm) | -2.38 |
| f2(mm) | 3.01 |
Table 12
Fig. 8 A shows chromatic curve on the axis of the imaging lens of embodiment 4, indicates the light of different wave length via mirror
Converging focal point after head deviates.Fig. 8 B shows the astigmatism curve of the imaging lens of embodiment 4, indicate meridianal image surface bending and
Sagittal image surface bending.Fig. 8 C shows the distortion curve of the imaging lens of embodiment 4, indicates the distortion in the case of different image heights
Sizes values.Fig. 8 D shows the ratio chromatism, curve of the imaging lens of embodiment 4, indicate light via after camera lens in imaging surface
On different image heights deviation.According to Fig. 8 A to Fig. 8 D it is found that imaging lens given by embodiment 4 can be realized it is good
Image quality.
Embodiment 5
The imaging lens according to the embodiment of the present application 5 are described referring to Fig. 9 to Figure 10 D.Fig. 9 is shown according to this Shen
Please embodiment 5 imaging lens structural schematic diagram.
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, the 6th lens E6,
7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
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 convex surface.The third lens E3 has negative power, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 13 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens of embodiment 5
Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 13
As shown in Table 13, in embodiment 5, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 14 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 5, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -1.3945E-01 | 9.8219E-02 | -2.9598E-01 | 8.2622E-01 | -1.2783E+00 | 1.1389E+00 | -4.3968E-01 |
| S2 | -2.6055E-01 | 1.9825E-01 | -2.0002E-01 | 5.0898E-01 | -6.9750E-01 | 5.6000E-01 | -1.9796E-01 |
| S3 | -1.4956E-01 | 7.0856E-02 | -1.5919E-01 | 4.3928E-01 | -5.9651E-01 | 3.6927E-01 | -9.2985E-02 |
| S4 | -1.7175E-01 | 5.7063E-02 | -1.2523E-01 | 4.9879E-01 | -8.3938E-01 | 6.2699E-01 | -1.8087E-01 |
| S5 | -1.8380E-01 | 1.2996E-01 | -1.8199E-01 | 6.3017E-01 | -1.0697E+00 | 8.2266E-01 | -2.3101E-01 |
| S6 | -5.9311E-02 | 6.4816E-02 | -4.3991E-02 | 8.5672E-02 | -1.0272E-01 | 4.4306E-02 | 2.4367E-03 |
| S7 | -1.9019E-01 | 2.5204E-01 | -6.9876E-01 | 1.3134E+00 | -1.4197E+00 | 9.3085E-01 | -2.7678E-01 |
| S8 | -8.4906E-02 | -3.6431E-01 | 1.1510E+00 | -1.8404E+00 | 1.5445E+00 | -5.6429E-01 | 5.2870E-02 |
| S9 | -1.2701E-01 | -5.2906E-01 | 2.0735E+00 | -3.6203E+00 | 3.4486E+00 | -1.6879E+00 | 3.3021E-01 |
| S10 | -2.2233E-01 | 1.9363E-01 | -9.5244E-02 | -1.3979E-01 | 3.0413E-01 | -1.9625E-01 | 4.2875E-02 |
| S11 | 1.2340E-01 | -2.3330E-02 | -2.4502E-01 | 4.0563E-01 | -2.7739E-01 | 9.0802E-02 | -1.1936E-02 |
| S12 | 1.8712E-02 | -1.1368E-01 | 2.7812E-01 | -2.4964E-01 | 1.3378E-01 | -3.9589E-02 | 4.7836E-03 |
| S13 | -9.5516E-02 | -9.4644E-02 | 1.0568E-01 | -8.0868E-02 | 3.2667E-02 | -5.9792E-03 | 3.9536E-04 |
| S14 | 8.9858E-02 | -1.3057E-01 | 5.5976E-02 | -1.7158E-02 | 4.4894E-03 | -7.3456E-04 | 4.7497E-05 |
| S15 | -2.3127E-02 | 3.8491E-02 | -1.2241E-02 | 2.2849E-03 | -2.6204E-04 | 1.7263E-05 | -4.7426E-07 |
| S16 | -1.0256E-01 | 3.1365E-02 | -7.3531E-03 | 1.3943E-03 | -2.2494E-04 | 2.3728E-05 | -1.0513E-06 |
Table 14
Table 15 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S19 in embodiment 5
Distance TTL, maximum angle of half field-of view HFOV, F-number Fno, imaging lens of the object side S1 to imaging surface S19 of E1 on optical axis
Total effective focal length f and each lens effective focal length f1 to f8.
| ImgH(mm) | 3.08 | f3(mm) | -6.37 |
| TTL(mm) | 4.39 | f4(mm) | 1086.38 |
| HFOV(°) | 43.7 | f5(mm) | -25.85 |
| Fno | 1.98 | f6(mm) | 5.89 |
| f(mm) | 3.19 | f7(mm) | 4.45 |
| f1(mm) | 196.34 | f8(mm) | -2.39 |
| f2(mm) | 2.89 |
Table 15
Figure 10 A shows chromatic curve on the axis of the imaging lens of embodiment 5, indicates the light of different wave length via mirror
Converging focal point after head deviates.Figure 10 B shows the astigmatism curve of the imaging lens of embodiment 5, indicates meridianal image surface bending
It is bent with sagittal image surface.Figure 10 C shows the distortion curve of the imaging lens of embodiment 5, in the case of indicating different image heights
Distort sizes values.Figure 10 D shows the ratio chromatism, curve of the imaging lens of embodiment 5, indicate light via after camera lens
The deviation of different image heights on imaging surface.According to Figure 10 A to Figure 10 D it is found that imaging lens given by embodiment 5 can be real
Existing good image quality.
Embodiment 6
The imaging lens according to the embodiment of the present application 6 are described referring to Figure 11 to Figure 12 D.Figure 11 is shown according to this
Apply for the structural schematic diagram of the imaging lens of embodiment 6.
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, the 6th lens E6,
7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
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 convex surface.The third lens E3 has negative power, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 16 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens of embodiment 6
Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 16
As shown in Table 16, in embodiment 6, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 17 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 6, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -1.4162E-01 | 9.0367E-02 | -1.9093E-01 | 3.6590E-01 | -3.2705E-01 | 1.3882E-01 | -1.7097E-02 |
| S2 | -2.5749E-01 | 1.9760E-01 | -2.3446E-01 | 5.5848E-01 | -7.8299E-01 | 6.2781E-01 | -2.1501E-01 |
| S3 | -1.4431E-01 | 6.9830E-02 | -1.6938E-01 | 4.5128E-01 | -6.2356E-01 | 4.1398E-01 | -1.1838E-01 |
| S4 | -2.1418E-01 | 3.2955E-01 | -8.2760E-01 | 1.5302E+00 | -1.7704E+00 | 1.1168E+00 | -2.9903E-01 |
| S5 | -2.1754E-01 | 3.6742E-01 | -6.9390E-01 | 1.1984E+00 | -1.4319E+00 | 9.4886E-01 | -2.5092E-01 |
| S6 | -6.2446E-02 | 7.7318E-02 | 2.6743E-02 | -1.5907E-01 | 2.0346E-01 | -1.3542E-01 | 4.4345E-02 |
| S7 | -1.6559E-01 | 1.3634E-01 | -4.1152E-01 | 8.3089E-01 | -8.1581E-01 | 4.7032E-01 | -1.3260E-01 |
| S8 | -1.0290E-01 | -1.7782E-01 | 2.7641E-01 | -3.4297E-02 | -2.1939E-01 | 2.2228E-01 | -7.0604E-02 |
| S9 | -1.5359E-01 | -2.1891E-01 | 7.4367E-01 | -8.9132E-01 | 5.7565E-01 | -1.9117E-01 | 2.4434E-02 |
| S10 | -1.8938E-01 | 5.6579E-02 | 1.3328E-01 | -2.5068E-01 | 2.1816E-01 | -9.2681E-02 | 1.5058E-02 |
| S11 | 1.1896E-01 | -1.2034E-01 | 4.9537E-02 | 2.6710E-02 | -2.5055E-02 | 5.1371E-03 | -9.2452E-05 |
| S12 | 2.1163E-02 | -5.7414E-02 | 1.4622E-01 | -1.2865E-01 | 7.6997E-02 | -2.6532E-02 | 3.6931E-03 |
| S13 | -8.7726E-02 | -2.3280E-02 | 2.4053E-02 | -2.3077E-02 | 1.0165E-02 | -2.0451E-03 | 1.7920E-04 |
| S14 | 6.7375E-02 | -5.2536E-02 | -5.5842E-04 | 7.5427E-03 | -2.8899E-03 | 5.8355E-04 | -5.1181E-05 |
| S15 | -2.5045E-02 | 2.9876E-02 | -4.4683E-03 | -1.3368E-04 | 1.2771E-04 | -1.6630E-05 | 8.5760E-07 |
| S16 | -1.1491E-01 | 4.4088E-02 | -1.3625E-02 | 2.9835E-03 | -4.3767E-04 | 3.8028E-05 | -1.4509E-06 |
Table 17
Table 18 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S19 in embodiment 6
Distance TTL, maximum angle of half field-of view HFOV, F-number Fno, imaging lens of the object side S1 to imaging surface S19 of E1 on optical axis
Total effective focal length f and each lens effective focal length f1 to f8.
| ImgH(mm) | 3.08 | f3(mm) | -6.47 |
| TTL(mm) | 4.52 | f4(mm) | -18.43 |
| HFOV(°) | 42.4 | f5(mm) | -3115.99 |
| Fno | 1.91 | f6(mm) | 5.56 |
| f(mm) | 3.28 | f7(mm) | 4.01 |
| f1(mm) | 301.28 | f8(mm) | -2.21 |
| f2(mm) | 2.90 |
Table 18
Figure 12 A shows chromatic curve on the axis of the imaging lens of embodiment 6, indicates the light of different wave length via mirror
Converging focal point after head deviates.Figure 12 B shows the astigmatism curve of the imaging lens of embodiment 6, indicates meridianal image surface bending
It is bent with sagittal image surface.Figure 12 C shows the distortion curve of the imaging lens of embodiment 6, in the case of indicating different image heights
Distort sizes values.Figure 12 D shows the ratio chromatism, curve of the imaging lens of embodiment 6, indicate light via after camera lens
The deviation of different image heights on imaging surface.According to Figure 12 A to Figure 12 D it is found that imaging lens given by embodiment 6 can be real
Existing good image quality.
Embodiment 7
The imaging lens according to the embodiment of the present application 7 are described referring to Figure 13 to Figure 14 D.Figure 13 is shown according to this
Apply for the structural schematic diagram of the imaging lens of embodiment 7.
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, the 6th lens E6,
7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
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 convex surface.The third lens E3 has negative power, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 19 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens of embodiment 7
Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 19
As shown in Table 19, in embodiment 7, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 20 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 7, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -1.3715E-01 | 8.8176E-02 | -1.8854E-01 | 3.5344E-01 | -3.0251E-01 | 1.0970E-01 | -4.9152E-03 |
| S2 | -2.6678E-01 | 2.2453E-01 | -2.6219E-01 | 5.8853E-01 | -8.0970E-01 | 6.2126E-01 | -1.9660E-01 |
| S3 | -1.5815E-01 | 9.6131E-02 | -1.5813E-01 | 4.0842E-01 | -5.8064E-01 | 3.6165E-01 | -8.8334E-02 |
| S4 | -2.1344E-01 | 3.3189E-01 | -7.2611E-01 | 1.1616E+00 | -1.2626E+00 | 7.7938E-01 | -2.0665E-01 |
| S5 | -2.3580E-01 | 3.9195E-01 | -5.6469E-01 | 7.3479E-01 | -8.4121E-01 | 6.0580E-01 | -1.7131E-01 |
| S6 | -7.6026E-02 | 6.9148E-02 | 2.0204E-01 | -6.4073E-01 | 8.5330E-01 | -5.7256E-01 | 1.6184E-01 |
| S7 | -1.2769E-01 | -3.2931E-02 | -5.1583E-02 | 4.0233E-01 | -6.0154E-01 | 5.3460E-01 | -2.0498E-01 |
| S8 | -6.2394E-02 | -4.7298E-01 | 1.2422E+00 | -1.7908E+00 | 1.5384E+00 | -6.6591E-01 | 1.0454E-01 |
| S9 | -1.8208E-01 | -2.5992E-01 | 1.2226E+00 | -2.1406E+00 | 2.0681E+00 | -1.0332E+00 | 2.0536E-01 |
| S10 | -2.1831E-01 | 1.7553E-01 | -9.1295E-02 | -6.0175E-02 | 1.6487E-01 | -1.0462E-01 | 2.1357E-02 |
| S11 | 1.4581E-01 | -1.7630E-01 | 6.2784E-02 | 1.0809E-01 | -1.2455E-01 | 5.0847E-02 | -7.7539E-03 |
| S12 | 3.2304E-02 | -1.2184E-01 | 2.5497E-01 | -2.0934E-01 | 1.0559E-01 | -3.0049E-02 | 3.5092E-03 |
| S13 | -8.3567E-02 | -7.1106E-02 | 8.9228E-02 | -7.2377E-02 | 2.8067E-02 | -4.5578E-03 | 2.2684E-04 |
| S14 | 9.7816E-02 | -1.0521E-01 | 4.5534E-02 | -2.1717E-02 | 8.4630E-03 | -1.6832E-03 | 1.2525E-04 |
| S15 | -2.6002E-02 | 3.0499E-02 | -2.6799E-03 | -1.4915E-03 | 4.8708E-04 | -5.8795E-05 | 2.7237E-06 |
| S16 | -1.1029E-01 | 4.0997E-02 | -1.2366E-02 | 2.7327E-03 | -4.1850E-04 | 3.8038E-05 | -1.4776E-06 |
Table 20
Table 21 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S19 in embodiment 7
Distance TTL, maximum angle of half field-of view HFOV, F-number Fno, imaging lens of the object side S1 to imaging surface S19 of E1 on optical axis
Total effective focal length f and each lens effective focal length f1 to f8.
| ImgH(mm) | 3.08 | f3(mm) | -6.66 |
| TTL(mm) | 4.47 | f4(mm) | -19.76 |
| HFOV(°) | 43.2 | f5(mm) | -226.61 |
| Fno | 1.80 | f6(mm) | 6.12 |
| f(mm) | 3.25 | f7(mm) | 3.94 |
| f1(mm) | 182.29 | f8(mm) | -2.23 |
| f2(mm) | 2.85 |
Table 21
Figure 14 A shows chromatic curve on the axis of the imaging lens of embodiment 7, indicates the light of different wave length via mirror
Converging focal point after head deviates.Figure 14 B shows the astigmatism curve of the imaging lens of embodiment 7, indicates meridianal image surface bending
It is bent with sagittal image surface.Figure 14 C shows the distortion curve of the imaging lens of embodiment 7, in the case of indicating different image heights
Distort sizes values.Figure 14 D shows the ratio chromatism, curve of the imaging lens of embodiment 7, indicate light via after camera lens
The deviation of different image heights on imaging surface.According to Figure 14 A to Figure 14 D it is found that imaging lens given by embodiment 7 can be real
Existing good image quality.
Embodiment 8
The imaging lens according to the embodiment of the present application 8 are described referring to Figure 15 to Figure 16 D.Figure 15 is shown according to this
Apply for the structural schematic diagram of the imaging lens of embodiment 8.
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, the 6th lens E6,
7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
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 convex surface.The third lens E3 has negative power, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is convex surface.The
Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is concave surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 22 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens of embodiment 8
Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 22
As shown in Table 22, in embodiment 8, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 23 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 8, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | -1.3733E-01 | 8.6163E-02 | -1.7945E-01 | 3.3452E-01 | -2.8026E-01 | 9.7446E-02 | -2.7094E-03 |
| S2 | -2.6694E-01 | 2.2316E-01 | -2.5754E-01 | 5.8627E-01 | -8.2155E-01 | 6.4339E-01 | -2.0782E-01 |
| S3 | -1.5778E-01 | 9.4925E-02 | -1.5451E-01 | 4.0792E-01 | -6.0042E-01 | 3.9594E-01 | -1.0521E-01 |
| S4 | -2.1244E-01 | 3.3100E-01 | -7.3211E-01 | 1.1760E+00 | -1.2800E+00 | 7.9606E-01 | -2.1450E-01 |
| S5 | -2.3644E-01 | 3.9191E-01 | -5.4918E-01 | 6.6649E-01 | -7.1840E-01 | 5.0812E-01 | -1.4321E-01 |
| S6 | -7.7501E-02 | 7.1130E-02 | 2.1345E-01 | -6.8256E-01 | 9.1201E-01 | -6.1004E-01 | 1.7049E-01 |
| S7 | -1.3030E-01 | -1.5208E-02 | -8.2615E-02 | 4.1922E-01 | -5.9432E-01 | 5.2076E-01 | -1.9916E-01 |
| S8 | -5.9266E-02 | -5.1098E-01 | 1.4190E+00 | -2.1838E+00 | 1.9790E+00 | -9.0519E-01 | 1.5439E-01 |
| S9 | -1.7860E-01 | -3.0918E-01 | 1.4472E+00 | -2.6267E+00 | 2.6116E+00 | -1.3366E+00 | 2.7224E-01 |
| S10 | -2.2111E-01 | 1.9795E-01 | -1.4474E-01 | 1.1536E-02 | 1.0603E-01 | -7.8040E-02 | 1.6422E-02 |
| S11 | 1.4645E-01 | -1.7761E-01 | 6.0084E-02 | 1.1554E-01 | -1.3125E-01 | 5.3589E-02 | -8.1900E-03 |
| S12 | 3.1439E-02 | -1.1867E-01 | 2.4894E-01 | -2.0366E-01 | 1.0253E-01 | -2.9149E-02 | 3.4004E-03 |
| S13 | -8.5099E-02 | -6.5507E-02 | 8.1851E-02 | -6.6891E-02 | 2.5817E-02 | -4.0870E-03 | 1.8742E-04 |
| S14 | 9.6999E-02 | -1.0480E-01 | 4.5593E-02 | -2.1688E-02 | 8.3900E-03 | -1.6583E-03 | 1.2276E-04 |
| S15 | -2.5867E-02 | 3.0374E-02 | -2.5661E-03 | -1.5512E-03 | 5.0322E-04 | -6.0987E-05 | 2.8420E-06 |
| S16 | -1.1135E-01 | 4.2246E-02 | -1.2995E-02 | 2.9055E-03 | -4.4470E-04 | 4.0054E-05 | -1.5381E-06 |
Table 23
Table 24 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S19 in embodiment 8
Distance TTL, maximum angle of half field-of view HFOV, F-number Fno, imaging lens of the object side S1 to imaging surface S19 of E1 on optical axis
Total effective focal length f and each lens effective focal length f1 to f8.
| ImgH(mm) | 3.08 | f3(mm) | -6.64 |
| TTL(mm) | 4.48 | f4(mm) | -47.99 |
| HFOV(°) | 43.2 | f5(mm) | -27.57 |
| Fno | 1.80 | f6(mm) | 6.03 |
| f(mm) | 3.25 | f7(mm) | 3.94 |
| f1(mm) | 174.72 | f8(mm) | -2.22 |
| f2(mm) | 2.85 |
Table 24
Figure 16 A shows chromatic curve on the axis of the imaging lens of embodiment 8, indicates the light of different wave length via mirror
Converging focal point after head deviates.Figure 16 B shows the astigmatism curve of the imaging lens of embodiment 8, indicates meridianal image surface bending
It is bent with sagittal image surface.Figure 16 C shows the distortion curve of the imaging lens of embodiment 8, in the case of indicating different image heights
Distort sizes values.Figure 16 D shows the ratio chromatism, curve of the imaging lens of embodiment 8, indicate light via after camera lens
The deviation of different image heights on imaging surface.According to Figure 16 A to Figure 16 D it is found that imaging lens given by embodiment 8 can be real
Existing good image quality.
Embodiment 9
The imaging lens according to the embodiment of the present application 9 are described referring to Figure 17 to Figure 18 D.Figure 17 shows according to this
Apply for the structural schematic diagram of the imaging lens of embodiment 9.
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, the 6th lens E6,
7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
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 convex surface.The third lens E3 has negative power, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 25 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens of embodiment 9
Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 25
As shown in Table 25, in embodiment 9, the object side of any one lens of the first lens E1 into the 8th lens E8
It is aspherical with image side surface.Table 26 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 9, wherein each
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 26
Table 27 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S19 in embodiment 9
Distance TTL, maximum angle of half field-of view HFOV, F-number Fno, imaging lens of the object side S1 to imaging surface S19 of E1 on optical axis
Total effective focal length f and each lens effective focal length f1 to f8.
| ImgH(mm) | 3.08 | f3(mm) | -6.53 |
| TTL(mm) | 4.51 | f4(mm) | -12.99 |
| HFOV(°) | 43.5 | f5(mm) | 41.32 |
| Fno | 1.98 | f6(mm) | 6.01 |
| f(mm) | 3.24 | f7(mm) | 4.31 |
| f1(mm) | 163.67 | f8(mm) | -2.25 |
| f2(mm) | 2.88 |
Table 27
Figure 18 A shows chromatic curve on the axis of the imaging lens of embodiment 9, indicates the light of different wave length via mirror
Converging focal point after head deviates.Figure 18 B shows the astigmatism curve of the imaging lens of embodiment 9, indicates meridianal image surface bending
It is bent with sagittal image surface.Figure 18 C shows the distortion curve of the imaging lens of embodiment 9, in the case of indicating different image heights
Distort sizes values.Figure 18 D shows the ratio chromatism, curve of the imaging lens of embodiment 9, indicate light via after camera lens
The deviation of different image heights on imaging surface.According to Figure 18 A to Figure 18 D it is found that imaging lens given by embodiment 9 can be real
Existing good image quality.
Embodiment 10
The imaging lens according to the embodiment of the present application 10 are described referring to Figure 19 to Figure 20 D.Figure 19 shows basis
The structural schematic diagram of the imaging lens of the embodiment of the present application 10.
As shown in figure 19, 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, the 6th lens E6,
7th lens E7, the 8th lens E8, optical filter E9 and imaging surface S19.
First lens E1 has negative power, 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 convex surface.The third lens E3 has negative power, and object side S5 is
Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The
Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke,
Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as
Side S14 is convex surface.8th lens E8 has negative power, and object side S15 is concave surface, and image side surface S16 is concave surface.Optical filter
E9 has object side S17 and image side surface S18.Light from object sequentially passes through each surface S1 to S18 and is ultimately imaged and is being imaged
On the S19 of face.
Table 28 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens of embodiment 10
Bore coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 28
As shown in Table 28, in embodiment 10, the object side of any one lens of the first lens E1 into the 8th lens E8
Face and image side surface are aspherical.Table 29 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 10, 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 | -1.4880E-01 | 1.0415E-01 | -1.5740E-01 | 2.3496E-01 | -1.1584E-01 | -3.8369E-02 | 4.2027E-02 |
| S2 | -2.7252E-01 | 2.9711E-01 | -4.2241E-01 | 8.4190E-01 | -1.1272E+00 | 8.7422E-01 | -2.9130E-01 |
| S3 | -1.5792E-01 | 1.3516E-01 | -2.0259E-01 | 3.9460E-01 | -5.6914E-01 | 4.3992E-01 | -1.4903E-01 |
| S4 | -1.9172E-01 | 1.9802E-01 | -2.9544E-01 | 4.2564E-01 | -5.0843E-01 | 3.7631E-01 | -1.2636E-01 |
| S5 | -2.0624E-01 | 2.3890E-01 | -6.8234E-02 | -2.2878E-01 | 3.3400E-01 | -1.9683E-01 | 5.0930E-02 |
| S6 | -7.7777E-02 | 5.9295E-02 | 2.1755E-01 | -6.2367E-01 | 7.8268E-01 | -5.0540E-01 | 1.3756E-01 |
| S7 | -1.1641E-01 | -8.1609E-02 | 2.3779E-01 | -3.8817E-01 | 4.8115E-01 | -2.4912E-01 | 3.2216E-02 |
| S8 | -8.9902E-02 | -2.3764E-01 | 5.9236E-01 | -7.9962E-01 | 6.5433E-01 | -2.6124E-01 | 3.5465E-02 |
| S9 | -1.9018E-01 | -1.5605E-01 | 6.5856E-01 | -9.0482E-01 | 7.3570E-01 | -3.3624E-01 | 6.4287E-02 |
| S10 | -1.8878E-01 | 3.3367E-02 | 9.6492E-02 | -1.3517E-01 | 1.4194E-01 | -8.2884E-02 | 1.8121E-02 |
| S11 | 1.3905E-01 | -1.2806E-01 | -7.1993E-03 | 1.2639E-01 | -1.0119E-01 | 3.3066E-02 | -4.1327E-03 |
| S12 | 4.6193E-03 | -1.0635E-04 | 3.9444E-02 | -2.2903E-02 | 1.3834E-02 | -5.8191E-03 | 8.8455E-04 |
| S13 | -1.1134E-01 | 2.2803E-02 | -3.5292E-02 | 3.0941E-02 | -1.5423E-02 | 3.7874E-03 | -3.4416E-04 |
| S14 | 6.5885E-02 | -5.1219E-02 | 1.7425E-02 | -5.7340E-03 | 1.3522E-03 | -1.6625E-04 | 6.1490E-06 |
| S15 | -4.0242E-02 | 5.8092E-02 | -2.0824E-02 | 3.9622E-03 | -3.8919E-04 | 1.5929E-05 | -2.2528E-09 |
| S16 | -1.2145E-01 | 5.6441E-02 | -2.1366E-02 | 5.1635E-03 | -7.3576E-04 | 5.6707E-05 | -1.8278E-06 |
Table 29
Table 30 gives the half ImgH of effective pixel area diagonal line length on imaging surface S19 in embodiment 10, first thoroughly
Distance TTL, maximum angle of half field-of view HFOV, F-number Fno, imaging lens of the object side S1 to imaging surface S19 of mirror E1 on optical axis
Total effective focal length f of the head and effective focal length f1 to f8 of each lens.
Table 30
Figure 20 A shows chromatic curve on the axis of the imaging lens of embodiment 10, indicate the light of different wave length via
Converging focal point after camera lens deviates.Figure 20 B shows the astigmatism curve of the imaging lens of embodiment 10, indicates that meridianal image surface is curved
The bending of bent and sagittal image surface.Figure 20 C shows the distortion curve of the imaging lens of embodiment 10, in the case of indicating different image heights
Distortion sizes values.Figure 20 D shows the ratio chromatism, curve of the imaging lens of embodiment 10, after indicating light via camera lens
The deviation of different image heights on imaging surface.0A to Figure 20 D is it is found that imaging lens energy given by embodiment 10 according to fig. 2
Enough realize good image quality.
To sum up, embodiment 1 to embodiment 10 meets relationship shown in table 31 respectively.
| Conditional embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| f/EPD | 1.98 | 1.98 | 1.98 | 1.98 | 1.98 | 1.91 | 1.80 | 1.80 | 1.98 | 1.86 |
| f2/f | 0.91 | 0.91 | 0.90 | 0.92 | 0.91 | 0.88 | 0.88 | 0.88 | 0.89 | 0.87 |
| ImgH/f6 | 0.61 | 0.61 | 0.58 | 0.55 | 0.52 | 0.55 | 0.50 | 0.51 | 0.51 | 0.48 |
| f123/f4567 | 1.61 | 1.63 | 1.70 | 1.70 | 1.68 | 1.77 | 1.69 | 1.69 | 1.59 | 1.58 |
| ∑CT/∑AT | 2.14 | 2.12 | 2.16 | 2.25 | 2.21 | 2.26 | 2.14 | 2.15 | 2.28 | 2.10 |
| TTL/f7 | 0.82 | 0.84 | 0.93 | 1.02 | 0.99 | 1.13 | 1.13 | 1.14 | 1.05 | 1.06 |
| |R6/R5| | 0.61 | 0.58 | 0.52 | 0.55 | 0.53 | 0.55 | 0.55 | 0.55 | 0.54 | 0.55 |
| R15/R11 | 0.49 | 0.51 | 0.57 | 0.66 | 0.77 | 0.62 | 0.71 | 0.70 | 0.68 | 0.74 |
| (CT2+CT1)/(CT2-CT1) | 2.63 | 2.73 | 2.58 | 2.52 | 2.38 | 2.21 | 2.41 | 2.37 | 2.29 | 2.14 |
| T34/T78 | 0.69 | 0.70 | 0.77 | 0.88 | 0.87 | 0.98 | 1.05 | 1.06 | 0.88 | 0.83 |
Table 31
The application also provides a kind of imaging device, and electronics photosensitive element can be photosensitive coupling element (CCD) or complementation
Property matal-oxide semiconductor element (CMOS).Imaging device can be the independent imaging equipment of such as digital camera, be also possible to
The image-forming module being integrated on the mobile electronic devices such as mobile phone.The imaging 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 (21)
- It by object side to image side sequentially include: the first lens, the second lens, with focal power along optical axis 1. imaging lens Three lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens, which is characterized in thatSecond lens, the 6th lens and the 7th lens all have positive light coke；The image side surface of the third lens is concave surface；The object side of 6th lens is concave surface；The object side of 8th lens is concave surface；AndFirst lens all have airspace between two lens of arbitrary neighborhood into the 8th lens.
- 2. imaging lens according to claim 1, which is characterized in that the effective focal length f2 of second lens and it is described at As total effective focal length f of camera lens meets 0.5 < f2/f < 1.3.
- 3. imaging lens according to claim 1, which is characterized in that effective pixel region on the imaging surface of the imaging lens The effective focal length f6 of the half ImgH of domain diagonal line length and the 6th lens meets 0 < ImgH/f6 < 1.
- 4. imaging lens according to claim 1, which is characterized in that the radius of curvature R 5 of the object side of the third lens Meet 0.3 < with the radius of curvature R 6 of the image side surface of the third lens | R6/R5 | < 0.8.
- 5. imaging lens according to claim 1, which is characterized in that center of first lens on the optical axis is thick It spends the center thickness CT2 of CT1 and second lens on the optical axis and meets 2 < (CT2+CT1)/(CT2-CT1) < 3.
- 6. imaging lens according to claim 1, which is characterized in that the radius of curvature of the object side of the 6th lens The radius of curvature R 15 of the object side of R11 and the 8th lens meets 0 < R15/R11 < 1.
- 7. imaging lens according to claim 1, which is characterized in that the third lens and the 4th lens are described The spacing distance T78 of spacing distance T34 and the 7th lens and the 8th lens on the optical axis on optical axis meets 0 < T34/T78 < 1.3.
- 8. imaging lens according to claim 1, which is characterized in that first lens, second lens and described The combined focal length f123 of the third lens and the 4th lens, the 5th lens, the 6th lens and the 7th lens Combined focal length f4567 meet 1.1 < f123/f4567 < 2.
- 9. imaging lens according to claim 1, which is characterized in that the object side of first lens to the imaging lens The effective focal length f7 of distance TTL and seventh lens of the imaging surface of head on the optical axis meet 0.5 < TTL/f7 < 1.4。
- 10. imaging lens according to any one of claim 1 to 9, which is characterized in that first lens to described Eight lens are any into the 8th lens in the summation ∑ CT of the center thickness on the optical axis and first lens respectively The summation ∑ AT of spacing distance of adjacent two lens on the optical axis meets 2 < ∑ CT/ ∑ AT < 2.5.
- 11. imaging lens according to any one of claim 1 to 9, which is characterized in that the imaging lens it is total effectively The Entry pupil diameters EPD of focal length f and the imaging lens meets f/EPD < 2.
- It by object side to image side sequentially include: the first lens, the second lens, with focal power along optical axis 12. imaging lens Three lens, the 4th lens, the 5th lens, the 6th lens, the 7th lens and the 8th lens, which is characterized in thatSecond lens, the 6th lens and the 7th lens all have positive light coke；The image side surface of the third lens is concave surface；The object side of 6th lens is concave surface；The object side of 8th lens is concave surface；AndThe half ImgH of effective pixel area diagonal line length and the 6th lens is effective on the imaging surface of the imaging lens Focal length f6 meets 0 < ImgH/f6 < 1.
- 13. imaging lens according to claim 12, which is characterized in that the radius of curvature of the object side of the third lens The radius of curvature R 6 of R5 and the image side surface of the third lens meets 0.3 < | R6/R5 | < 0.8.
- 14. imaging lens according to claim 12, which is characterized in that center of first lens on the optical axis The center thickness CT2 of thickness CT1 and second lens on the optical axis meets 2 < (CT2+CT1)/(CT2-CT1) < 3.
- 15. imaging lens according to claim 14, which is characterized in that the effective focal length f2 of second lens with it is described Total effective focal length f of imaging lens meets 0.5 < f2/f < 1.3.
- 16. imaging lens according to claim 12, which is characterized in that the radius of curvature of the object side of the 6th lens The radius of curvature R 15 of the object side of R11 and the 8th lens meets 0 < R15/R11 < 1.
- 17. imaging lens according to claim 12, which is characterized in that the third lens and the 4th lens are in institute The spacing distance T34 and the spacing distance T78 of the 7th lens and the 8th lens on the optical axis stated on optical axis expires 0 < T34/T78 < 1.3 of foot.
- 18. imaging lens according to claim 12, which is characterized in that first lens, second lens and institute The combined focal length f123 and the 4th lens, the 5th lens, the 6th lens and the described 7th for stating the third lens are thoroughly The combined focal length f4567 of mirror meets 1.1 < f123/f4567 < 2.
- 19. imaging lens according to claim 12, which is characterized in that the object side of first lens to the imaging The effective focal length f7 of distance TTL of the imaging surface of camera lens on the optical axis and the 7th lens meets 0.5 < TTL/f7 < 1.4。
- 20. imaging lens described in any one of 2 to 19 according to claim 1, which is characterized in that first lens are to described 8th lens are appointed in the summation ∑ CT of the center thickness on the optical axis and first lens into the 8th lens respectively Anticipate spacing distance of adjacent two lens on the optical axis summation ∑ AT meet 2 < ∑ CT/ ∑ AT < 2.5.
- 21. imaging lens described in any one of 2 to 19 according to claim 1, which is characterized in that the imaging lens always have The Entry pupil diameters EPD of effect focal length f and the imaging lens meets f/EPD < 2.
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| CN111077656A (en) * | 2019-12-28 | 2020-04-28 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
| CN111142226A (en) * | 2019-12-28 | 2020-05-12 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
| CN112698490A (en) * | 2020-12-30 | 2021-04-23 | 诚瑞光学(苏州)有限公司 | Image pickup optical lens |
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| US11314050B2 (en) | 2019-11-27 | 2022-04-26 | Largan Precision Co., Ltd. | Photographing optical system, image capturing unit and electronic device |
| US11971609B2 (en) | 2019-11-27 | 2024-04-30 | Largan Precision Co., Ltd. | Photographing optical system |
| CN111077656A (en) * | 2019-12-28 | 2020-04-28 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
| CN111142226A (en) * | 2019-12-28 | 2020-05-12 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
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