CN107608057A - Imaging lens system group - Google Patents
Imaging lens system group Download PDFInfo
- Publication number
- CN107608057A CN107608057A CN201711084920.6A CN201711084920A CN107608057A CN 107608057 A CN107608057 A CN 107608057A CN 201711084920 A CN201711084920 A CN 201711084920A CN 107608057 A CN107608057 A CN 107608057A
- Authority
- CN
- China
- Prior art keywords
- lens
- system group
- imaging
- lens system
- imaging lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003384 imaging method Methods 0.000 title claims abstract description 206
- 230000003287 optical effect Effects 0.000 claims abstract description 73
- 239000000571 coke Substances 0.000 claims abstract description 55
- 210000001747 pupil Anatomy 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 201000009310 astigmatism Diseases 0.000 description 16
- 238000005452 bending Methods 0.000 description 12
- 238000009738 saturating Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 230000000007 visual effect Effects 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 5
- 230000004075 alteration Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 102220062467 rs745423387 Human genes 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
Landscapes
- Lenses (AREA)
Abstract
A kind of imaging lens system group, the imaging lens system group are sequentially included along optical axis by thing side to image side：First lens, the second lens, the 3rd lens, the 4th lens and the 5th lens.First lens have positive light coke, and its thing side is convex surface；Second lens have positive light coke or negative power；3rd lens have positive light coke or negative power；4th lens have positive light coke, and its image side surface is convex surface；5th lens have negative power；And first lens effective focal length f1 and imaging lens system group effective focal length f between meet：1.5<f1/f<2.1.According to the imaging lens system group of the application, large aperture, miniaturization, the effect of high image quality can be realized.
Description
Technical field
The application is related to a kind of imaging lens system group, more specifically, to be related to a kind of shooting including five lens saturating by the application
Microscope group.
Background technology
With answering for the imaging sensor such as photosensitive coupling element (CCD) or Complimentary Metal-Oxide semiconductor element (CMOS)
With infrared region is expanded to, they can have the application such as infrared imaging, distance measurement, infrared identification.
The continuous development of portable type electronic product also requires that pick-up lens minimizes simultaneously, but existing miniaturization camera lens
Head generally F numbers are larger, and light-inletting quantity is less than normal and can not use.Therefore, it should ensure that pick-up lens minimizes, possess simultaneously again big
Aperture, to ensure application of the infrared lens in fields such as detection, identifications.
Therefore, the application aims to provide a kind of large aperture, miniaturization, the imaging lens system group of high image quality.
The content of the invention
This application provides be applicable to portable type electronic product, can at least solve or part solve it is of the prior art
The imaging lens system group of above-mentioned at least one shortcoming, for example, large aperture imaging lens system group.
On the one hand, this application provides a kind of imaging lens system group, the camera lens sequentially to be included along optical axis by thing side to image side：
First lens, the second lens, the 3rd lens, the 4th lens and the 5th lens.First lens can have positive light coke, its thing side
For convex surface；Second lens can have positive light coke or negative power；3rd lens can have positive light coke or negative power；4th
Lens can have positive light coke, and its image side surface is convex surface；5th lens can have negative power；And first lens effective Jiao
Away from can meet between f1 and the effective focal length f of imaging lens system group：1.5<f1/f<2.1.
In one embodiment, can between the effective focal length f of imaging lens system group and the Entry pupil diameters EPD of imaging lens system group
Meet：f/EPD<1.5.
In one embodiment, can expire between the effective focal length f4 of the 4th lens and the effective focal length f of imaging lens system group
Foot：1.4<f4/f<3.
In one embodiment, between the effective focal length f4 of the lens of radius of curvature R 8 and the 4th of the 4th lens image side surface
- 1 can be met<R8/f4<-0.5.
In one embodiment, center thickness CT1, second lens center on optical axis of first lens on optical axis
Thickness CT2 and the 3rd lens can meet between the center thickness CT3 on optical axis：0.7<CT1/(CT2+CT3)<1.3.
In one embodiment, airspace T23 and the 4th lens on optical axis of the second lens and the 3rd lens and
5th lens can meet between the airspace T45 on optical axis：T23/T45<0.3.
In one embodiment, the airspace T45 of the 4th lens and the 5th lens on optical axis and imaging lens system group
Optics total length TTL between can meet：0.1<T45/TTL<0.3.
In one embodiment, effective half bore DT12 of the first lens image side surface and the 4th lens thing side is effective
It can meet between half bore DT41：0.7<DT12/DT41<1.2.
In one embodiment, the thing side of the 5th lens can be convex surface.
In one embodiment, the 5th lens thing side or an image side surface at least point of inflexion.
In one embodiment, can meet：0.8<|SAG51/CT5|<3, wherein, SAG51 is the 5th lens thing side
And distance on the intersection point of optical axis to the axle between the effective radius summit of the 5th lens thing side, and CT5 is that the 5th lens exist
Center thickness on optical axis.
In one embodiment, on the optics total length TTL of imaging lens system group and the imaging surface of imaging lens system group effectively
It can meet between the half ImgH of pixel region diagonal line length：TTL/ImgH<1.7.
On the other hand, this application provides a kind of imaging lens system group, the camera lens sequentially to be wrapped along optical axis by thing side to image side
Include：First lens, the second lens, the 3rd lens, the 4th lens and the 5th lens.First lens can have positive light coke, its thing
Side is convex surface；Second lens can have positive light coke or negative power；3rd lens can have positive light coke or negative power；
4th lens can have positive light coke, and its image side surface is convex surface；5th lens can have negative power；And the first lens image side
It can meet between effective half bore DT12 in face and effective half bore DT41 of the 4th lens thing side：0.7<DT12/DT41<
1.2。
Another aspect, this application provides a kind of imaging lens system group, the camera lens is sequentially wrapped along optical axis by thing side to image side
Include：First lens, the second lens, the 3rd lens, the 4th lens and the 5th lens.First lens can have positive light coke, its thing
Side is convex surface；Second lens can have positive light coke or negative power；3rd lens can have positive light coke or negative power；
4th lens can have positive light coke, and its image side surface is convex surface；5th lens can have negative power；And second lens and
Three lens can expire between the airspace T45 of airspace T23 and the 4th lens and the 5th lens on optical axis on optical axis
Foot：T23/T45<0.3.
The application employs multi-disc (for example, five) lens, by each power of lens of reasonable distribution, face type, each
Spacing etc. on axle between the center thickness of mirror and each lens so that above-mentioned imaging lens system group has large aperture, miniaturization, height
At least one beneficial effect such as image quality.
Brief description of the drawings
With reference to accompanying 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 representation of the imaging lens system group according to the embodiment of the present application 1；
Fig. 2A to Fig. 2 C respectively illustrates chromatic curve, astigmatism curve and distortion on the axle of the imaging lens system group of embodiment 1
Curve；
Fig. 3 shows the structural representation of the imaging lens system group according to the embodiment of the present application 2；
Fig. 4 A to Fig. 4 C respectively illustrate chromatic curve, astigmatism curve and distortion on the axle of the imaging lens system group of embodiment 2
Curve；
Fig. 5 shows the structural representation of the imaging lens system group according to the embodiment of the present application 3；
Fig. 6 A to Fig. 6 C respectively illustrate chromatic curve, astigmatism curve and distortion on the axle of the imaging lens system group of embodiment 3
Curve；
Fig. 7 shows the structural representation of the imaging lens system group according to the embodiment of the present application 4；
Fig. 8 A to Fig. 8 C respectively illustrate chromatic curve, astigmatism curve and distortion on the axle of the imaging lens system group of embodiment 4
Curve；
Fig. 9 shows the structural representation of the imaging lens system group according to the embodiment of the present application 5；
Figure 10 A to Figure 10 C respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 5, astigmatism curve and abnormal
Varied curve；
Figure 11 shows the structural representation of the imaging lens system group according to the embodiment of the present application 6；
Figure 12 A to Figure 12 C respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 6, astigmatism curve and abnormal
Varied curve；
Figure 13 shows the structural representation of the imaging lens system group according to the embodiment of the present application 7；
Figure 14 A to Figure 14 C respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 7, astigmatism curve and abnormal
Varied curve；
Figure 15 shows the structural representation of the imaging lens system group according to the embodiment of the present application 8；And
Figure 16 A to Figure 16 C respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 8, astigmatism curve and abnormal
Varied curve.
Embodiment
In order to more fully understand the application, refer to the attached drawing is made into more detailed description to the various aspects of the application.Should
Understand, these describe the description of the simply illustrative embodiments to the application in detail, rather than limit the application in any way
Scope.In the specification, identical reference numbers identical element.Stating "and/or" includes associated institute
Any and all combinations of one or more of list of items.
It should be noted that in this manual, the statement of first, second, third, etc. is only used for a feature and another spy
Sign makes a distinction, and does not indicate that any restrictions to feature.Therefore, in the case of without departing substantially from teachings of the present application, hereinafter
The first lens discussed are also known as the second lens or the 3rd lens.
In the accompanying drawings, for convenience of description, thickness, the size and dimension of lens are somewhat exaggerated.Specifically, accompanying drawing
Shown in sphere or aspherical shape be illustrated by way of example.That is, sphere or aspherical shape is not limited to accompanying drawing
In the sphere that shows or aspherical shape.Accompanying 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 the convex surface position
When putting, then it represents that the lens surface is extremely convex surface less than near axis area；If lens surface is concave surface and does not define the concave surface position
When, then it represents that the lens surface is extremely concave surface less than near axis area.It is referred to as thing side near the surface of object in each lens,
It is referred to as image side surface near the surface of imaging surface in each lens.
It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory
Represent stated feature, element and/or part be present when being used in bright book, but do not preclude the presence or addition of one or more
Further feature, element, part and/or combinations thereof.In addition, ought the statement of such as " ... at least one " appear in institute
When after the list of row feature, whole listed feature, rather than the individual component in modification list are modified.In addition, work as description originally
During the embodiment of application, represented " one or more embodiments of the application " using "available".Also, term " exemplary "
It 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.
The feature of the application, principle and other aspects are described in detail below.
Such as five lens with focal power may include according to the imaging lens system group of the application illustrative embodiments,
That is, the first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens.This five lens are along optical axis by thing side to picture
Side sequential.
In the exemplary embodiment, the first lens can have positive light coke, and its thing side can be convex surface；Second lens can
With positive light coke or negative power；3rd lens can have positive light coke or negative power；4th lens can have positive light focus
Degree, its image side surface can be convex surface；5th lens have negative power.
In the exemplary embodiment, the thing side of the 5th lens can be convex surface.By reasonably setting the 5th lens
Face type, chief ray incident angle can be reduced, and reduce distortion.
In the exemplary embodiment, the thing side of the 5th lens or an image side surface at least point of inflexion.By rational
The face type of 5th lens is set, chief ray incident angle can be reduced, and reduce distortion.
In the exemplary embodiment, the imaging lens system group of the application can meet conditional f/EPD ＜ 1.5, wherein, f is
The effective focal length of imaging lens system group, EPD are the Entry pupil diameters of imaging lens system group.More specifically, f and EPD can further meet f/
EPD≤1.2.F-number Fno (that is, the Entry pupil diameters EPD of total effective focal length f/ camera lenses of camera lens) smaller, mirror of imaging lens system group
The clear aperature of head is bigger, and the light-inletting quantity within the same unit interval is just more.F-number Fno reduction, can effectively it be lifted
Image planes brightness so that camera lens can preferably meet the shooting demand during insufficient light such as cloudy day, dusk, have large aperture
Advantage.Camera lens is configured to meet conditional f/EPD ＜ 1.5, can cause camera lens that there is the advantage compared with large aperture, so as to
The thang-kng amount of increase system, the illumination in Enhanced Imaging face；At the same time it can also reduce the aberration of peripheral field.
In the exemplary embodiment, the imaging lens system group of the application can meet conditional 1.5<f1/f<2.1, wherein, f1
For the effective focal length of the first lens, f is the effective focal length of imaging lens system group.More specifically, f1 and f can further meet 1.53≤
f1/f≤2.04.By the reasonably combined of each lens powers and face type, heavy caliber, effectively lifting resolving power can be realized and contracted
Short camera lens total length, ensure camera lens miniaturization.
In the exemplary embodiment, the imaging lens system group of the application can meet conditional 1.4<f4/f<3, wherein, f4 is
The effective focal length of 4th lens, f are the effective focal length of imaging lens system group.More specifically, f4 and f can further meet 1.45≤
f4/f≤2.69.Meet conditional 1.4<f4/f<3, can be achieved high-resolution the effect of.
In the exemplary embodiment, the imaging lens system group of the application can meet conditional -1<R8/f4<- 0.5, wherein,
R8 is the radius of curvature of the 4th lens image side surface, and f4 is the effective focal length of the 4th lens.More specifically, R8 and f4 can further expire
Foot -0.79≤R8/f4≤- 0.53.Meet conditional -1<R8/f4<- 0.5, can be achieved high-resolution the effect of.
In the exemplary embodiment, the imaging lens system group of the application can meet conditional 0.7<CT1/(CT2+CT3)<
1.3, wherein, CT1 is center thickness of first lens on optical axis, and CT2 is center thickness of second lens on optical axis, CT3
For center thickness of the 3rd lens on optical axis.More specifically, CT1, CT2 and CT3 can further meet 0.71≤CT1/ (CT2+
CT3)≤1.15.Meet conditional 0.7<CT1/(CT2+CT3)<1.3, the effect of high-resolution, large aperture can be realized.
In the exemplary embodiment, the imaging lens system group of the application can meet conditional T23/T45<0.3, wherein, T23
For the airspace of the second lens and the 3rd lens on optical axis, T45 is the air of the 4th lens and the 5th lens on optical axis
Interval.More specifically, T23 and T45 can further meet T23/T45≤0.12.Meet conditional T23/T45<0.3, it can be achieved
The effect of high-resolution, large aperture.
In the exemplary embodiment, the imaging lens system group of the application can meet conditional 0.1<T45/TTL<0.3, its
In, T45 is the airspace of the 4th lens and the 5th lens on optical axis, TTL be the optics total length of imaging lens system group (i.e.,
Distance of the imaging surface on optical axis from the center of the thing side of the first lens to imaging lens system group).More specifically, T45 and TTL
0.11≤T45/TTL≤0.21 can further be met.Meet conditional, enable to lens construction compact, ensure miniaturization.
In the exemplary embodiment, the imaging lens system group of the application can meet conditional 0.7<DT12/DT41<1.2, its
In, DT12 is effective half bore of the first lens image side surface, and DT41 is effective half bore of the 4th lens thing side.More specifically
Ground, DT12 and DT41 can further meet 0.75≤DT12/DT41≤1.06.Meet conditional 0.7<DT12/DT41<1.2, energy
Enough effectively control Lens, realize the effect of minimizing.
In the exemplary embodiment, the imaging lens system group of the application can meet conditional 0.8<|SAG51/CT5|<3, its
In, SAG51 is on intersection point to the axle between the effective radius summit of the 5th lens thing side of the 5th lens thing side and optical axis
Distance, CT5 are center thickness of the 5th lens on optical axis.More specifically, SAG51 and CT5 can further meet 0.9≤|
SAG51/CT5|≤2.85.Meet conditional 0.8<|SAG51/CT5|<3, chief ray incident angle can be reduced, and reduce abnormal
Become.
In the exemplary embodiment, the imaging lens system group of the application can meet conditional TTL/ImgH<1.7, wherein,
TTL is the optics total length of imaging lens system group, and ImgH is the half of effective pixel area diagonal line length on imaging surface.More specifically
Ground, TTL and ImgH can further meet TTL/ImgH≤1.69.Meet conditional TTL/ImgH<1.7, it can effectively compress and be
The size of system, realizes small size performance.
In the exemplary embodiment, imaging lens system group may also include at least one diaphragm, to lift the imaging matter of camera lens
Amount.For example, diaphragm may be provided between the first lens and the second lens.
Alternatively, above-mentioned imaging lens system group may also include optical filter for correcting color error ratio and/or for guard bit
In the protective glass of the photo-sensitive cell on imaging surface.
Multi-disc eyeglass, such as described above five can be used according to the imaging lens system group of the above-mentioned embodiment of the application
Piece.Pass through spacing on the axle between each power of lens of reasonable distribution, face type, the center thickness of each lens and each lens
Deng, can effectively reduce camera lens volume, reduce camera lens susceptibility and improve the machinability of camera lens so that imaging lens system group
It is more beneficial for producing and processing and being applicable to portable type electronic product.Meanwhile by the imaging lens system group of above-mentioned configuration, also have
There is the beneficial effect such as miniaturization, large aperture, high image quality.
In presently filed embodiment, at least one in the minute surface of each lens is aspherical mirror.Non-spherical lens
The characteristics of be：From lens centre to lens perimeter, curvature is consecutive variations.It is constant with having from lens centre to lens perimeter
The spherical lens of curvature is different, and non-spherical lens has more preferably radius of curvature characteristic, and there is improvement to distort aberration and improve picture
The advantages of dissipating aberration.After non-spherical lens, the aberration occurred when imaging can be eliminated as much as possible, so as to improve
Image quality.
However, it will be understood by those of skill in the art that without departing from this application claims technical scheme situation
Under, the lens numbers for forming imaging lens system group can be changed, to obtain each result and advantage described in this specification.For example,
Although being described in embodiments by taking five lens as an example, the imaging lens system group is not limited to include five lens.
If desired, the imaging lens system group may also include the lens of other quantity.
The specific embodiment for the imaging lens system group for being applicable to above-mentioned embodiment is further described with reference to the accompanying drawings.
Embodiment 1
Imaging lens system group referring to Fig. 1 to Fig. 2 C descriptions according to the embodiment of the present application 1.Fig. 1 is shown according to this Shen
Please embodiment 1 imaging lens system group structural representation.
As shown in figure 1, according to the imaging lens system group of the application illustrative embodiments along optical axis by thing side to image side sequentially
Including：First lens L1, diaphragm STO, the second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L5, optical filter L6
With imaging surface S13.
First lens L1 has thing side S1 and image side surface S2.Second lens L2 has thing side S3 and image side surface S4.The
Three lens L3 have thing side S5 and image side surface S6.4th lens L4 has thing side S7 and image side surface S8.5th lens L5 has
There are thing side S9 and image side surface S10.Optical filter L6 has thing side S11 and image side surface S12.Light from object is sequentially through each
Surface S1 to S12 is simultaneously ultimately imaged on imaging surface S13.
In this embodiment, the first lens L1 has positive light coke, and its thing side S1 is convex surface；Second lens L2 has negative
Focal power；3rd lens L3 has positive light coke；4th lens L4 has positive light coke, and its image side surface S8 is convex surface；5th is saturating
Mirror L5 has negative power, and its thing side paraxial places of S9 are convex surface.
Table 1 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens system group of embodiment 1
Coefficient is bored, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 1
As shown in Table 1, the thing side of any one lens in the first lens L1 to the 5th lens L5 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 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 1 inverse)；K be circular cone coefficient (
Provided in table 1)；Ai is the correction factor of aspherical i-th-th ranks.Table 2 below is given available for each aspherical in embodiment 1
Minute surface S1-S10 high order term coefficient A4、A6、A8、A10、A12、A14And A16。
Table 2
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 4.1860E-02 | -7.3245E-03 | -3.5395E-03 | 4.0124E-03 | -1.7627E-03 | 3.4081E-04 | -2.4256E-05 |
| S2 | 1.6848E-02 | -4.3432E-02 | 5.0142E-02 | -3.5679E-02 | 1.3956E-02 | -2.7202E-03 | 2.0466E-04 |
| S3 | 6.2159E-02 | -4.4731E-02 | 2.6702E-02 | -8.3917E-03 | 1.0862E-03 | 2.6415E-04 | -6.3830E-05 |
| S4 | 2.2763E-04 | 4.2950E-02 | -6.7217E-02 | 6.0234E-02 | -3.0481E-02 | 8.1943E-03 | -8.9013E-04 |
| S5 | 1.6530E-01 | -2.6580E-01 | 2.8627E-01 | -1.9965E-01 | 8.0576E-02 | -1.7247E-02 | 1.5205E-03 |
| S6 | 3.2404E-03 | 4.1959E-02 | -8.4475E-02 | 7.5735E-02 | -3.8314E-02 | 9.8739E-03 | -9.8112E-04 |
| S7 | -1.1837E-02 | 7.2769E-03 | -4.6603E-03 | 3.0704E-04 | 1.1508E-03 | -5.4677E-04 | 6.8805E-05 |
| S8 | -1.3616E-02 | 3.7751E-03 | 4.2820E-03 | -3.4087E-03 | 1.2878E-03 | -2.2901E-04 | 1.4820E-05 |
| S9 | -1.3434E-01 | 4.8193E-02 | -1.5165E-02 | 3.4929E-03 | -4.5633E-04 | 3.0126E-05 | -7.8634E-07 |
| S10 | -5.4358E-02 | 2.0760E-02 | -7.9740E-03 | 1.8553E-03 | -2.4451E-04 | 1.6681E-05 | -4.5421E-07 |
Table 3 provides the effective focal length f1 to f5 of each lens in embodiment 1, total effective focal length f of imaging lens system group, shooting thoroughly
The optics total length TTL (that is, the distance from the first lens L1 thing side S1 center to imaging surface S13 on optical axis) of microscope group
And imaging lens system forms the half ImgH of effective pixel area diagonal line length on image planes S13.
Table 3
| ImgH(mm) | 4.06 | f4(mm) | 7.32 |
| f(mm) | 3.93 | f5(mm) | -6.70 |
| f1(mm) | 6.01 | TTL(mm) | 5.59 |
| f2(mm) | -10.29 | ||
| f3(mm) | 8.42 |
Imaging lens system group in embodiment 1 meets：
F/EPD=1.10, wherein, f is total effective focal length of imaging lens system group, and EPD is the Entry pupil diameters of imaging lens system group；
F1/f=1.53, wherein, f1 is the effective focal length of the first lens, and f is the effective focal length of imaging lens system group；
F4/f=1.86, wherein, f4 is the effective focal length of the 4th lens, and f is the effective focal length of imaging lens system group；
R8/f4=-0.59, wherein, R8 is the radius of curvature of the 4th lens image side surface, and f4 is effective Jiao of the 4th lens
Away from；
CT1/ (CT2+CT3)=1.14, wherein, CT1 is center thickness of first lens on optical axis, and CT2 is second saturating
Center thickness of the mirror on optical axis, CT3 are center thickness of the 3rd lens on optical axis；
T23/T45=0.05, wherein, T23 is the airspace of the second lens and the 3rd lens on optical axis, T45
The airspace of four lens and the 5th lens on optical axis；
T45/TTL=0.18, wherein, T45 is the airspace of the 4th lens and the 5th lens on optical axis, and TTL is to take the photograph
As the optics total length of lens group, (that is, the imaging surface from the center of the thing side of the first lens to imaging lens system group is on optical axis
Distance)；
DT12/DT41=1.00, wherein, DT12 is effective half bore of the first lens image side surface, and DT41 is the 4th lens
Effective half bore of thing side；
| SAG51/CT5 |=1.95, wherein, SAG51 is the intersection point of the 5th lens thing side and optical axis to the 5th lens thing
Distance on axle between the effective radius summit of side, CT5 are center thickness of the 5th lens on optical axis；And
TTL/ImgH=01.38, wherein, TTL is the optics total length of imaging lens system group, and ImgH is effective picture on imaging surface
The half of plain region diagonal line length.
In addition, Fig. 2A shows chromatic curve on the axle of the imaging lens system group of embodiment 1, it represents the light of different wave length
Deviate via the converging focal point after camera lens.Fig. 2 B show the astigmatism curve of the imaging lens system group of embodiment 1, and it represents meridian picture
Face is bent and sagittal image surface bending.Fig. 2 C show the distortion curve of the imaging lens system group of embodiment 1, and it represents different visual angles feelings
Distortion sizes values under condition.According to Fig. 2A to Fig. 2 C understand, the imaging lens system group given by embodiment 1 can realize it is good into
As quality.
Embodiment 2
Imaging lens system group referring to Fig. 3 to Fig. 4 C descriptions according to the embodiment of the present application 2.
In the present embodiment and following examples, for brevity, by clipped description similar to Example 1.Fig. 3
Show the structural representation of the imaging lens system group according to the embodiment of the present application 2.
As shown in figure 3, according to the imaging lens system group of the application illustrative embodiments along optical axis by thing side to image side sequentially
Including：First lens L1, diaphragm STO, the second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L5, optical filter L6
With imaging surface S13.
First lens L1 has thing side S1 and image side surface S2.Second lens L2 has thing side S3 and image side surface S4.The
Three lens L3 have thing side S5 and image side surface S6.4th lens L4 has thing side S7 and image side surface S8.5th lens L5 has
There are thing side S9 and image side surface S10.Optical filter L6 has thing side S11 and image side surface S12.Light from object is sequentially through each
Surface S1 to S12 is simultaneously ultimately imaged on imaging surface S13.
In this embodiment, the first lens L1 has positive light coke, and its thing side S1 is convex surface；Second lens L2 has negative
Focal power；3rd lens L3 has positive light coke；4th lens L4 has positive light coke, and its image side surface S8 is convex surface；5th is saturating
Mirror L5 has negative power, and its thing side paraxial places of S9 are convex surface.
Table 4 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens system group of embodiment 2
Coefficient is bored, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 4
As shown in Table 4, in example 2, the thing side of any one lens in the first lens L1 to the 5th lens L5
It is aspherical with image side surface.Table 5 shows the high order term coefficient available for each aspherical mirror in embodiment 2, wherein, it is each non-
Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
Table 5
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 1.7524E-02 | 1.2556E-02 | -1.3252E-02 | 6.2044E-03 | -1.5477E-03 | 1.9062E-04 | -9.1655E-06 |
| S2 | 1.3465E-02 | -2.3127E-02 | 2.0652E-02 | -1.0369E-02 | 2.7849E-03 | -3.8178E-04 | 2.0809E-05 |
| S3 | 3.2610E-02 | -6.8563E-03 | -3.7431E-03 | 5.5668E-03 | -2.5493E-03 | 5.5670E-04 | -4.6087E-05 |
| S4 | 1.5459E-02 | 3.3207E-02 | -4.5990E-02 | 3.1543E-02 | -1.1863E-02 | 2.3583E-03 | -1.8964E-04 |
| S5 | 9.2027E-02 | -1.2255E-01 | 1.0107E-01 | -5.5097E-02 | 1.7784E-02 | -3.0903E-03 | 2.2147E-04 |
| S6 | 5.6194E-03 | -9.7923E-03 | 9.4138E-03 | -7.7665E-03 | 3.0626E-03 | -6.1152E-04 | 4.8960E-05 |
| S7 | -8.7038E-03 | -6.3471E-04 | 2.5660E-03 | -2.4311E-03 | 9.9872E-04 | -2.3814E-04 | 2.2388E-05 |
| S8 | -3.3013E-02 | 4.4371E-02 | -4.0265E-02 | 2.0592E-02 | -5.7948E-03 | 8.2506E-04 | -4.5808E-05 |
| S9 | -9.9107E-02 | 3.0631E-02 | -1.0611E-02 | 2.2769E-03 | -2.5179E-04 | 1.3701E-05 | -2.9346E-07 |
| S10 | -9.3851E-02 | 3.6890E-02 | -9.7862E-03 | 1.4912E-03 | -1.2864E-04 | 5.8515E-06 | -1.0882E-07 |
Table 6 provides the effective focal length f1 to f5 of each lens in embodiment 2, total effective focal length f of imaging lens system group, shooting thoroughly
The optics total length TTL (that is, the distance from the first lens L1 thing side S1 center to imaging surface S13 on optical axis) of microscope group
And imaging lens system forms the half ImgH of effective pixel area diagonal line length on image planes S13.
Table 6
| ImgH(mm) | 4.05 | f4(mm) | 7.20 |
| f(mm) | 3.99 | f5(mm) | -16.60 |
| f1(mm) | 7.09 | TTL(mm) | 6.09 |
| f2(mm) | -23.14 | ||
| f3(mm) | 13.26 |
Fig. 4 A show chromatic curve on the axle of the imaging lens system group of embodiment 2, its represent different wave length light via
Converging focal point after camera lens deviates.Fig. 4 B show the astigmatism curve of the imaging lens system group of embodiment 2, and it represents that meridianal image surface is curved
The bending of bent and sagittal image surface.Fig. 4 C show the distortion curve of the imaging lens system group of embodiment 2, and it is represented in the case of different visual angles
Distortion sizes values.Understand that the imaging lens system group given by embodiment 2 can realize good imaging product according to Fig. 4 A to Fig. 4 C
Matter.
Embodiment 3
The imaging lens system group according to the embodiment of the present application 3 is described referring to Fig. 5 to Fig. 6 C.Fig. 5 is shown according to this
Apply for the structural representation of the imaging lens system group of embodiment 3.
As shown in figure 5, according to the imaging lens system group of the application illustrative embodiments along optical axis by thing side to image side sequentially
Including：First lens L1, diaphragm STO, the second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L5, optical filter L6
With imaging surface S13.
First lens L1 has thing side S1 and image side surface S2.Second lens L2 has thing side S3 and image side surface S4.The
Three lens L3 have thing side S5 and image side surface S6.4th lens L4 has thing side S7 and image side surface S8.5th lens L5 has
There are thing side S9 and image side surface S10.Optical filter L6 has thing side S11 and image side surface S12.Light from object is sequentially through each
Surface S1 to S12 is simultaneously ultimately imaged on imaging surface S13.
In this embodiment, the first lens L1 has positive light coke, and its thing side S1 is convex surface；Second lens L2 has negative
Focal power；3rd lens L3 has positive light coke；4th lens L4 has positive light coke, and its image side surface S8 is convex surface；5th is saturating
Mirror L5 has negative power, and its thing side paraxial places of S9 are convex surface.
Table 7 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens system group of embodiment 3
Coefficient is bored, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 7
As shown in Table 7, in embodiment 3, the thing side of any one lens in the first lens L1 to the 5th lens L5
It is aspherical with image side surface.Table 8 shows the high order term coefficient available for each aspherical mirror in embodiment 3, wherein, it is each non-
Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
Table 8
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 3.2355E-02 | -1.1677E-02 | 4.5522E-03 | -1.5546E-03 | 2.6654E-04 | -2.0366E-05 | 5.0293E-07 |
| S2 | 1.1197E-02 | -5.6271E-03 | 5.4417E-03 | -3.7434E-03 | 1.0510E-03 | -1.3376E-04 | 6.4754E-06 |
| S3 | 2.6046E-02 | 1.4565E-02 | -1.8105E-02 | 1.1161E-02 | -3.8299E-03 | 6.9106E-04 | -5.0264E-05 |
| S4 | 2.4271E-03 | 1.7848E-02 | -2.2787E-02 | 1.5660E-02 | -5.6702E-03 | 1.0647E-03 | -8.0468E-05 |
| S5 | 5.6944E-02 | -5.5344E-02 | 3.0325E-02 | -1.1088E-02 | 2.3846E-03 | -2.6835E-04 | 1.2386E-05 |
| S6 | -5.4799E-03 | 4.4557E-03 | -8.3276E-03 | 4.0991E-03 | -1.0928E-03 | 1.4957E-04 | -7.9157E-06 |
| S7 | -6.3049E-03 | -4.0345E-03 | 8.3983E-04 | -6.7715E-06 | -1.8348E-04 | 4.1531E-05 | -2.2231E-06 |
| S8 | -7.2211E-03 | 9.6964E-04 | -8.0372E-05 | -4.1726E-05 | -5.2203E-06 | 4.3228E-07 | 4.0331E-07 |
| S9 | -1.0007E-01 | 2.0309E-02 | -4.0978E-03 | 9.5291E-04 | -1.4352E-04 | 1.1052E-05 | -3.3378E-07 |
| S10 | -5.1102E-02 | 1.6390E-02 | -3.8449E-03 | 5.2967E-04 | -4.0786E-05 | 1.6122E-06 | -2.5292E-08 |
Table 9 provides the effective focal length f1 to f5 of each lens in embodiment 3, total effective focal length f of imaging lens system group, shooting thoroughly
The half ImgH of effective pixel area diagonal line length on optics total length TTL and imaging lens system composition the image planes S13 of microscope group.
Table 9
Fig. 6 A show chromatic curve on the axle of the imaging lens system group of embodiment 3, its represent different wave length light via
Converging focal point after camera lens deviates.Fig. 6 B show the astigmatism curve of the imaging lens system group of embodiment 3, and it represents that meridianal image surface is curved
The bending of bent and sagittal image surface.Fig. 6 C show the distortion curve of the imaging lens system group of embodiment 3, and it is represented in the case of different visual angles
Distortion sizes values.Understand that the imaging lens system group given by embodiment 3 can realize good imaging product according to Fig. 6 A to Fig. 6 C
Matter.
Embodiment 4
The imaging lens system group according to the embodiment of the present application 4 is described referring to Fig. 7 to Fig. 8 C.Fig. 7 is shown according to this
Apply for the structural representation of the imaging lens system group of embodiment 4.
As shown in fig. 7, according to the imaging lens system group of the application illustrative embodiments along optical axis by thing side to image side sequentially
Including：First lens L1, diaphragm STO, the second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L5 and imaging surface
S11。
First lens L1 has thing side S1 and image side surface S2.Second lens L2 has thing side S3 and image side surface S4.The
Three lens L3 have thing side S5 and image side surface S6.4th lens L4 has thing side S7 and image side surface S8.5th lens L5 has
There are thing side S9 and image side surface S10.Light from object sequentially through each surface S1 to S10 and is ultimately imaged in imaging surface S11
On.
In this embodiment, the first lens L1 has positive light coke, and its thing side S1 is convex surface；Second lens L2 has negative
Focal power；3rd lens L3 has positive light coke；4th lens L4 has positive light coke, and its image side surface S8 is convex surface；5th is saturating
Mirror L5 has negative power, and its thing side paraxial places of S9 are convex surface.
Table 10 show the surface types of each lens of the imaging lens system group of embodiment 4, radius of curvature, thickness, material and
Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 10
As shown in Table 10, in example 4, the thing side of any one lens in the first lens L1 to the 5th lens L5
It is aspherical with image side surface.Table 11 shows the high order term coefficient available for each aspherical mirror in embodiment 4, wherein, respectively
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 11
Table 12 provides the effective focal length f1 to f5 of each lens in embodiment 4, total effective focal length f of imaging lens system group, shooting
The half ImgH of effective pixel area diagonal line length on optics total length TTL and imaging lens system composition the image planes S11 of lens group.
Table 12
| ImgH(mm) | 4.06 | f4(mm) | 11.11 |
| f(mm) | 4.12 | f5(mm) | -11.92 |
| f1(mm) | 8.24 | TTL(mm) | 5.67 |
| f2(mm) | -14.08 | ||
| f3(mm) | 5.78 |
Fig. 8 A show chromatic curve on the axle of the imaging lens system group of embodiment 4, its represent different wave length light via
Converging focal point after camera lens deviates.Fig. 8 B show the astigmatism curve of the imaging lens system group of embodiment 4, and it represents that meridianal image surface is curved
The bending of bent and sagittal image surface.Fig. 8 C show the distortion curve of the imaging lens system group of embodiment 4, and it is represented in the case of different visual angles
Distortion sizes values.Understand that the imaging lens system group given by embodiment 4 can realize good imaging product according to Fig. 8 A to Fig. 8 C
Matter.
Embodiment 5
The imaging lens system group according to the embodiment of the present application 5 is described referring to Fig. 9 to Figure 10 C.Fig. 9 is shown according to this
Apply for the structural representation of the imaging lens system group of embodiment 5.
As shown in figure 9, according to the imaging lens system group of the application illustrative embodiments along optical axis by thing side to image side sequentially
Including：First lens L1, diaphragm STO, the second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L5, optical filter L6
With imaging surface S13.
First lens L1 has thing side S1 and image side surface S2.Second lens L2 has thing side S3 and image side surface S4.The
Three lens L3 have thing side S5 and image side surface S6.4th lens L4 has thing side S7 and image side surface S8.5th lens L5 has
There are thing side S9 and image side surface S10.Optical filter L6 has thing side S11 and image side surface S12.Light from object is sequentially through each
Surface S1 to S12 is simultaneously ultimately imaged on imaging surface S13.
In this embodiment, the first lens L1 has positive light coke, and its thing side S1 is convex surface；Second lens L2 has negative
Focal power；3rd lens L3 has positive light coke；4th lens L4 has positive light coke, and its image side surface S8 is convex surface；5th is saturating
Mirror L5 has negative power, and its thing side paraxial places of S9 are convex surface.
Table 13 show the surface types of each lens of the imaging lens system group of embodiment 5, radius of curvature, thickness, material and
Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 13
As shown in Table 13, in embodiment 5, the thing side of any one lens in the first lens L1 to the 5th lens L5
It is aspherical with image side surface.Table 14 shows the high order term coefficient available for each aspherical mirror in embodiment 5, wherein, respectively
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 14
Table 15 provides the effective focal length f1 to f5 of each lens in embodiment 5, total effective focal length f of imaging lens system group, shooting
The half ImgH of effective pixel area diagonal line length on optics total length TTL and imaging lens system composition the image planes S13 of lens group.
Table 15
| ImgH(mm) | 4.05 | f4(mm) | 6.54 |
| f(mm) | 4.15 | f5(mm) | -6.89 |
| f1(mm) | 8.49 | TTL(mm) | 5.89 |
| f2(mm) | -14.67 | ||
| f3(mm) | 8.40 |
Figure 10 A show chromatic curve on the axle of the imaging lens system group of embodiment 5, its represent different wave length light via
Converging focal point after camera lens deviates.Figure 10 B show the astigmatism curve of the imaging lens system group of embodiment 5, and it represents meridianal image surface
Bending and sagittal image surface bending.Figure 10 C show the distortion curve of the imaging lens system group of embodiment 5, and it represents different visual angles feelings
Distortion sizes values under condition.Understand that the imaging lens system group given by embodiment 5 can be realized good according to Figure 10 A to Figure 10 C
Image quality.
Embodiment 6
The imaging lens system group according to the embodiment of the present application 6 is described referring to Figure 11 to Figure 12 C.Figure 11 shows basis
The structural representation of the imaging lens system group of the embodiment of the present application 6.
As shown in figure 11, according to the imaging lens system group of the application illustrative embodiments along optical axis by thing side to image side sequentially
Including：First lens L1, diaphragm STO, the second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L5, optical filter L6
With imaging surface S13.
First lens L1 has thing side S1 and image side surface S2.Second lens L2 has thing side S3 and image side surface S4.The
Three lens L3 have thing side S5 and image side surface S6.4th lens L4 has thing side S7 and image side surface S8.5th lens L5 has
There are thing side S9 and image side surface S10.Optical filter L6 has thing side S11 and image side surface S12.Light from object is sequentially through each
Surface S1 to S12 is simultaneously ultimately imaged on imaging surface S13.
In this embodiment, the first lens L1 has positive light coke, and its thing side S1 is convex surface；Second lens L2 has negative
Focal power；3rd lens L3 has positive light coke；4th lens L4 has positive light coke, and its image side surface S8 is convex surface；5th is saturating
Mirror L5 has negative power, and its thing side paraxial places of S9 are convex surface.
Table 16 show the surface types of each lens of the imaging lens system group of embodiment 6, radius of curvature, thickness, material and
Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 16
As shown in Table 16, in embodiment 6, the thing side of any one lens in the first lens L1 to the 5th lens L5
It is aspherical with image side surface.Table 17 shows the high order term coefficient available for each aspherical mirror in embodiment 6, wherein, respectively
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 17
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 4.0272E-02 | 5.8592E-03 | -2.1999E-02 | 1.6971E-02 | -6.4846E-03 | 1.1525E-03 | -7.6979E-05 |
| S2 | 1.5332E-02 | -2.1310E-02 | 2.8715E-02 | -2.0507E-02 | 7.0926E-03 | -1.2252E-03 | 8.4268E-05 |
| S3 | 2.6892E-02 | -3.5818E-04 | -1.6093E-02 | 2.1551E-02 | -1.2830E-02 | 3.8310E-03 | -4.4477E-04 |
| S4 | -8.7122E-04 | 2.0672E-02 | -5.7329E-02 | 6.0419E-02 | -3.2408E-02 | 8.9823E-03 | -9.8501E-04 |
| S5 | 4.8163E-02 | -5.1394E-02 | 2.8332E-02 | -1.1646E-02 | 2.6790E-03 | -2.6864E-04 | 1.2386E-05 |
| S6 | -1.3831E-04 | 4.1341E-03 | -7.9561E-03 | 3.9485E-03 | -1.2079E-03 | 1.8474E-04 | -7.9157E-06 |
| S7 | -9.0951E-03 | -2.5978E-03 | -3.8847E-05 | -1.5692E-04 | -1.2806E-04 | 4.1498E-05 | -2.2231E-06 |
| S8 | -1.5228E-02 | 4.8685E-03 | -8.4979E-04 | -1.7220E-04 | -2.0126E-07 | 6.5303E-06 | 1.0781E-06 |
| S9 | -1.8918E-01 | 7.3033E-02 | -2.1806E-02 | 4.2963E-03 | -4.7141E-04 | 2.6051E-05 | -5.6411E-07 |
| S10 | -7.4166E-02 | 2.7640E-02 | -6.9532E-03 | 1.0546E-03 | -9.3277E-05 | 4.3915E-06 | -8.4510E-08 |
Table 18 provides the effective focal length f1 to f5 of each lens in embodiment 6, total effective focal length f of imaging lens system group, shooting
The half ImgH of effective pixel area diagonal line length on optics total length TTL and imaging lens system composition the image planes S13 of lens group.
Table 18
| ImgH(mm) | 4.05 | f4(mm) | 6.87 |
| f(mm) | 3.95 | f5(mm) | -5.34 |
| f1(mm) | 8.05 | TTL(mm) | 5.97 |
| f2(mm) | -14.42 | ||
| f3(mm) | 6.63 |
Figure 12 A show chromatic curve on the axle of the imaging lens system group of embodiment 6, its represent different wave length light via
Converging focal point after camera lens deviates.Figure 12 B show the astigmatism curve of the imaging lens system group of embodiment 6, and it represents meridianal image surface
Bending and sagittal image surface bending.Figure 12 C show the distortion curve of the imaging lens system group of embodiment 6, and it represents different visual angles feelings
Distortion sizes values under condition.Understand that the imaging lens system group given by embodiment 6 can be realized good according to Figure 12 A to Figure 12 C
Image quality.
Embodiment 7
The imaging lens system group according to the embodiment of the present application 7 is described referring to Figure 13 to Figure 14 C.Figure 13 shows basis
The structural representation of the imaging lens system group of the embodiment of the present application 7.
As shown in figure 13, according to the imaging lens system group of the application illustrative embodiments along optical axis by thing side to image side sequentially
Including：First lens L1, diaphragm STO, the second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L5, optical filter L6
With imaging surface S13.
First lens L1 has thing side S1 and image side surface S2.Second lens L2 has thing side S3 and image side surface S4.The
Three lens L3 have thing side S5 and image side surface S6.4th lens L4 has thing side S7 and image side surface S8.5th lens L5 has
There are thing side S9 and image side surface S10.Optical filter L6 has thing side S11 and image side surface S12.Light from object is sequentially through each
Surface S1 to S12 is simultaneously ultimately imaged on imaging surface S13.
In this embodiment, the first lens L1 has positive light coke, and its thing side S1 is convex surface；Second lens L2 has negative
Focal power；3rd lens L3 has positive light coke；4th lens L4 has positive light coke, and its image side surface S8 is convex surface；5th is saturating
Mirror L5 has negative power, and its thing side paraxial places of S9 are convex surface.
Table 13 show the surface types of each lens of the imaging lens system group of embodiment 7, radius of curvature, thickness, material and
Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 19
As shown in Table 19, in embodiment 7, the thing side of any one lens in the first lens L1 to the 5th lens L5
It is aspherical with image side surface.Table 20 shows the high order term coefficient available for each aspherical mirror in embodiment 7, wherein, respectively
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 20
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 1.7524E-02 | 1.2556E-02 | -1.3252E-02 | 6.2044E-03 | -1.5477E-03 | 1.9062E-04 | -9.1655E-06 |
| S2 | 1.3465E-02 | -2.3127E-02 | 2.0652E-02 | -1.0369E-02 | 2.7849E-03 | -3.8178E-04 | 2.0809E-05 |
| S3 | 3.2610E-02 | -6.8563E-03 | -3.7431E-03 | 5.5668E-03 | -2.5493E-03 | 5.5670E-04 | -4.6087E-05 |
| S4 | 1.5459E-02 | 3.3207E-02 | -4.5990E-02 | 3.1543E-02 | -1.1863E-02 | 2.3583E-03 | -1.8964E-04 |
| S5 | 9.2027E-02 | -1.2255E-01 | 1.0107E-01 | -5.5097E-02 | 1.7784E-02 | -3.0903E-03 | 2.2147E-04 |
| S6 | 5.6194E-03 | -9.7923E-03 | 9.4138E-03 | -7.7665E-03 | 3.0626E-03 | -6.1152E-04 | 4.8960E-05 |
| S7 | -8.7038E-03 | -6.3471E-04 | 2.5660E-03 | -2.4311E-03 | 9.9872E-04 | -2.3814E-04 | 2.2388E-05 |
| S8 | -3.3013E-02 | 4.4371E-02 | -4.0265E-02 | 2.0592E-02 | -5.7948E-03 | 8.2506E-04 | -4.5808E-05 |
| S9 | -9.9107E-02 | 3.0631E-02 | -1.0611E-02 | 2.2769E-03 | -2.5179E-04 | 1.3701E-05 | -2.9346E-07 |
| S10 | -9.3851E-02 | 3.6890E-02 | -9.7862E-03 | 1.4912E-03 | -1.2864E-04 | 5.8515E-06 | -1.0882E-07 |
Table 21 provides the effective focal length f1 to f5 of each lens in embodiment 7, total effective focal length f of imaging lens system group, shooting
The half ImgH of effective pixel area diagonal line length on optics total length TTL and imaging lens system composition the image planes S13 of lens group.
Table 21
| ImgH(mm) | 4.05 | f4(mm) | 7.20 |
| f(mm) | 3.99 | f5(mm) | -16.60 |
| f1(mm) | 7.09 | TTL(mm) | 6.09 |
| f2(mm) | -23.14 | ||
| f3(mm) | 13.26 |
Figure 14 A show chromatic curve on the axle of the imaging lens system group of embodiment 7, its represent different wave length light via
Converging focal point after camera lens deviates.Figure 14 B show the astigmatism curve of the imaging lens system group of embodiment 7, and it represents meridianal image surface
Bending and sagittal image surface bending.Figure 14 C show the distortion curve of the imaging lens system group of embodiment 7, and it represents different visual angles feelings
Distortion sizes values under condition.Understand that the imaging lens system group given by embodiment 7 can be realized good according to Figure 14 A to Figure 14 C
Image quality.
Embodiment 8
The imaging lens system group according to the embodiment of the present application 8 is described referring to Figure 15 to Figure 16 C.Figure 15 shows basis
The structural representation of the imaging lens system group of the embodiment of the present application 8.
As shown in figure 15, according to the imaging lens system group of the application illustrative embodiments along optical axis by thing side to image side sequentially
Including：First lens L1, diaphragm STO, the second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L5, optical filter L6
With imaging surface S13.
First lens L1 has thing side S1 and image side surface S2.Second lens L2 has thing side S3 and image side surface S4.The
Three lens L3 have thing side S5 and image side surface S6.4th lens L4 has thing side S7 and image side surface S8.5th lens L5 has
There are thing side S9 and image side surface S10.Optical filter L6 has thing side S11 and image side surface S12.Light from object is sequentially through each
Surface S1 to S12 is simultaneously ultimately imaged on imaging surface S13.
In this embodiment, the first lens L1 has positive light coke, and its thing side S1 is convex surface；Second lens L2 has negative
Focal power；3rd lens L3 has positive light coke；4th lens L4 has positive light coke, and its image side surface S8 is convex surface；5th is saturating
Mirror L5 has negative power, and its thing side paraxial places of S9 are convex surface.
Table 15 show the surface types of each lens of the imaging lens system group of embodiment 8, radius of curvature, thickness, material and
Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 22
As shown in Table 22, in embodiment 8, the thing side of any one lens in the first lens L1 to the 5th lens L5
It is aspherical with image side surface.Table 23 shows the high order term coefficient available for each aspherical mirror in embodiment 8, wherein, respectively
Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 23
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 3.7686E-02 | -3.8412E-03 | -4.5566E-03 | 4.5028E-03 | -2.0100E-03 | 3.9675E-04 | -2.9002E-05 |
| S2 | 9.3445E-03 | -2.7178E-02 | 4.1684E-02 | -3.6431E-02 | 1.5895E-02 | -3.3811E-03 | 2.7856E-04 |
| S3 | 3.2419E-02 | 1.2422E-02 | -3.9187E-02 | 4.0523E-02 | -2.1303E-02 | 5.9693E-03 | -6.7318E-04 |
| S4 | -9.9284E-02 | 2.8149E-01 | -4.0076E-01 | 3.4134E-01 | -1.6791E-01 | 4.4275E-02 | -4.7775E-03 |
| S5 | 3.5552E-02 | -4.2634E-02 | 1.8539E-02 | -6.7116E-03 | 1.5447E-03 | -1.4247E-04 | 5.9578E-06 |
| S6 | -1.1454E-02 | 1.0495E-03 | -5.1835E-03 | 2.3655E-03 | -8.1011E-04 | 1.3992E-04 | -3.8076E-06 |
| S7 | -4.1368E-03 | -7.2620E-03 | 3.4251E-03 | -7.1795E-04 | -1.1761E-04 | 2.2007E-05 | -1.0694E-06 |
| S8 | -1.1900E-02 | 5.9051E-03 | -1.5453E-03 | 3.1886E-05 | 5.7943E-05 | 6.1033E-06 | -2.0299E-06 |
| S9 | -1.3107E-01 | 4.7737E-02 | -1.3973E-02 | 2.7484E-03 | -3.0915E-04 | 1.8108E-05 | -4.3191E-07 |
| S10 | -5.8210E-02 | 2.0237E-02 | -5.4237E-03 | 8.8223E-04 | -8.4699E-05 | 4.3817E-06 | -9.3246E-08 |
Table 24 provides the effective focal length f1 to f5 of each lens in embodiment 8, total effective focal length f of imaging lens system group, shooting
The half ImgH of effective pixel area diagonal line length on optics total length TTL and imaging lens system composition the image planes S13 of lens group.
Table 24
| ImgH(mm) | 4.05 | f4(mm) | 6.28 |
| f(mm) | 4.16 | f5(mm) | -6.95 |
| f1(mm) | 7.86 | TTL(mm) | 5.89 |
| f2(mm) | -18.43 | ||
| f3(mm) | 12.04 |
Figure 16 A show chromatic curve on the axle of the imaging lens system group of embodiment 8, its represent different wave length light via
Converging focal point after camera lens deviates.Figure 16 B show the astigmatism curve of the imaging lens system group of embodiment 8, and it represents meridianal image surface
Bending and sagittal image surface bending.Figure 16 C show the distortion curve of the imaging lens system group of embodiment 8, and it represents different visual angles feelings
Distortion sizes values under condition.Understand that the imaging lens system group given by embodiment 8 can be realized good according to Figure 16 A to Figure 16 C
Image quality.
To sum up, embodiment 1 to embodiment 8 meets the relation shown in table 25 respectively.
Table 25
| Conditional embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| f/EPD | 1.10 | 0.95 | 1.20 | 1.09 | 1.20 | 1.20 | 0.95 | 1.20 |
| f1/f | 1.53 | 1.78 | 2.04 | 2.00 | 2.04 | 2.04 | 1.78 | 1.89 |
| TTL/ImgH | 1.38 | 1.50 | 1.69 | 1.40 | 1.45 | 1.48 | 1.50 | 1.45 |
| f4/f | 1.86 | 1.81 | 1.45 | 2.69 | 1.58 | 1.74 | 1.81 | 1.51 |
| R8/f4 | -0.59 | -0.71 | -0.66 | -0.79 | -0.59 | -0.58 | -0.71 | -0.53 |
| CT1/(CT2+CT3) | 1.14 | 1.15 | 0.79 | 0.98 | 0.99 | 0.71 | 1.15 | 1.03 |
| T34/T45 | 0.67 | 0.60 | 0.68 | 0.88 | 0.50 | 0.90 | 0.60 | 0.40 |
| T23/T45 | 0.05 | 0.04 | 0.12 | 0.03 | 0.06 | 0.06 | 0.04 | 0.04 |
| DT12/DT41 | 1.00 | 1.06 | 0.94 | 0.91 | 0.90 | 0.75 | 1.06 | 0.87 |
| T45/TTL | 0.18 | 0.17 | 0.18 | 0.11 | 0.20 | 0.15 | 0.17 | 0.21 |
| T23/T12 | 0.16 | 0.09 | 0.45 | 0.03 | 0.20 | 0.15 | 0.09 | 0.14 |
| T23/T34 | 0.08 | 0.07 | 0.18 | 0.04 | 0.11 | 0.06 | 0.07 | 0.10 |
| |SAG51/CT5| | 1.95 | 2.19 | 2.85 | 0.90 | 2.47 | 2.79 | 2.19 | 2.40 |
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 (14)
1. imaging lens system group, sequentially included by thing side to image side along optical axis：First lens, the second lens, the 3rd lens, the 4th
Lens and the 5th lens,
Characterized in that,
First lens have positive light coke, and its thing side is convex surface；
Second lens have positive light coke or negative power；
3rd lens have positive light coke or negative power；
4th lens have positive light coke, and its image side surface is convex surface；
5th lens have negative power；And
Meet between the effective focal length f1 of first lens and the effective focal length f of the imaging lens system group：1.5<f1/f<2.1.
2. imaging lens system group according to claim 1, it is characterised in that the effective focal length f of the imaging lens system group and institute
State and meet between the Entry pupil diameters EPD of imaging lens system group：f/EPD<1.5.
3. imaging lens system group according to claim 1, it is characterised in that the effective focal length f4 of the 4th lens with it is described
Meet between the effective focal length f of imaging lens system group：1.4<f4/f<3.
4. imaging lens system group according to claim 3, it is characterised in that the radius of curvature R 8 of the 4th lens image side surface
Meet -1 between the effective focal length f4 of the 4th lens<R8/f4<-0.5.
5. imaging lens system group according to claim 1, it is characterised in that center of first lens on the optical axis
The center of center thickness CT2 and the 3rd lens on the optical axis of thickness CT1, second lens on the optical axis
Meet between thickness CT3：0.7<CT1/(CT2+CT3)<1.3.
6. imaging lens system group according to claim 1 or 5, it is characterised in that second lens and the 3rd lens
Airspace T23 and the airspace of the 4th lens and the 5th lens on the optical axis on the optical axis
Meet between T45：T23/T45<0.3.
7. imaging lens system group according to claim 6, it is characterised in that the 4th lens and the 5th lens are in institute
State and meet between the airspace T45 on optical axis and the optics total length TTL of the imaging lens system group：0.1<T45/TTL<0.3.
8. imaging lens system group according to claim 1, it is characterised in that effective half bore of the first lens image side surface
Meet between DT12 and effective half bore DT41 of the 4th lens thing side：0.7<DT12/DT41<1.2.
9. imaging lens system group according to claim 1, it is characterised in that the thing side of the 5th lens is convex surface.
10. imaging lens system group according to claim 9, it is characterised in that the 5th lens thing side or image side surface are extremely
A rare point of inflexion.
11. the imaging lens system group according to claim 9 or 10, it is characterised in that meet：0.8<|SAG51/CT5|<3,
Wherein, SAG51 is the effective of the intersection point of the 5th lens thing side and the optical axis to the 5th lens thing side
Distance on axle between radius summit, and CT5 are center thickness of the 5th lens on the optical axis.
12. imaging lens system group according to claim 1, it is characterised in that the optics total length TTL of the imaging lens system group
With meeting on the imaging surface of the imaging lens system group between the half ImgH of effective pixel area diagonal line length：TTL/ImgH<
1.7。
13. imaging lens system group, sequentially included by thing side to image side along optical axis：First lens, the second lens, the 3rd lens,
Four lens and the 5th lens,
Characterized in that,
First lens have positive light coke, and its thing side is convex surface；
Second lens have positive light coke or negative power；
3rd lens have positive light coke or negative power；
4th lens have positive light coke, and its image side surface is convex surface；
5th lens have negative power；And
Effective half bore DT12 of the first lens image side surface and effective half bore DT41 of the 4th lens thing side it
Between meet：0.7<DT12/DT41<1.2.
14. imaging lens system group, sequentially included by thing side to image side along optical axis：First lens, the second lens, the 3rd lens,
Four lens and the 5th lens,
Characterized in that,
First lens have positive light coke, and its thing side is convex surface；
Second lens have positive light coke or negative power；
3rd lens have positive light coke or negative power；
4th lens have positive light coke, and its image side surface is convex surface；
5th lens have negative power；And
The airspace T23 of second lens and the 3rd lens on the optical axis and the 4th lens and described the
Five lens meet between the airspace T45 on the optical axis：T23/T45<0.3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711084920.6A CN107608057B (en) | 2017-11-07 | 2017-11-07 | Image pickup lens group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711084920.6A CN107608057B (en) | 2017-11-07 | 2017-11-07 | Image pickup lens group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107608057A true CN107608057A (en) | 2018-01-19 |
| CN107608057B CN107608057B (en) | 2023-12-01 |
Family
ID=61085994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711084920.6A Active CN107608057B (en) | 2017-11-07 | 2017-11-07 | Image pickup lens group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107608057B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627954A (en) * | 2018-05-15 | 2018-10-09 | 辽宁中蓝电子科技有限公司 | A kind of imaging lens system group |
| WO2019214334A1 (en) * | 2018-05-09 | 2019-11-14 | 浙江舜宇光学有限公司 | Camera lens set |
| JP2020020852A (en) * | 2018-07-30 | 2020-02-06 | カンタツ株式会社 | Image capturing lens |
| CN110989139A (en) * | 2019-12-24 | 2020-04-10 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN113640940A (en) * | 2020-05-11 | 2021-11-12 | 新巨科技股份有限公司 | Five-piece infrared single-focus lens group |
| CN113805307A (en) * | 2020-06-12 | 2021-12-17 | 新巨科技股份有限公司 | Five-piece infrared single-focus lens group |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8072695B1 (en) * | 2010-07-09 | 2011-12-06 | Genius Electronic Optical Co., Ltd. | Imaging lens |
| CN102681142A (en) * | 2011-03-11 | 2012-09-19 | 奥林巴斯株式会社 | Imaging optical system and imaging apparatus using the same |
| CN102890332A (en) * | 2011-07-19 | 2013-01-23 | 大立光电股份有限公司 | Optical image capturing system |
| CN103257434A (en) * | 2012-02-16 | 2013-08-21 | Lg伊诺特有限公司 | Imaging lens |
| CN103608712A (en) * | 2011-06-10 | 2014-02-26 | Lg伊诺特有限公司 | Imaging lens |
| KR101452150B1 (en) * | 2013-11-08 | 2014-10-22 | 삼성전기주식회사 | Lens module |
| CN107065128A (en) * | 2017-01-20 | 2017-08-18 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN207336906U (en) * | 2017-11-07 | 2018-05-08 | 浙江舜宇光学有限公司 | Imaging lens system group |
-
2017
- 2017-11-07 CN CN201711084920.6A patent/CN107608057B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8072695B1 (en) * | 2010-07-09 | 2011-12-06 | Genius Electronic Optical Co., Ltd. | Imaging lens |
| CN102681142A (en) * | 2011-03-11 | 2012-09-19 | 奥林巴斯株式会社 | Imaging optical system and imaging apparatus using the same |
| CN103608712A (en) * | 2011-06-10 | 2014-02-26 | Lg伊诺特有限公司 | Imaging lens |
| CN102890332A (en) * | 2011-07-19 | 2013-01-23 | 大立光电股份有限公司 | Optical image capturing system |
| CN103257434A (en) * | 2012-02-16 | 2013-08-21 | Lg伊诺特有限公司 | Imaging lens |
| KR101452150B1 (en) * | 2013-11-08 | 2014-10-22 | 삼성전기주식회사 | Lens module |
| CN107065128A (en) * | 2017-01-20 | 2017-08-18 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN207336906U (en) * | 2017-11-07 | 2018-05-08 | 浙江舜宇光学有限公司 | Imaging lens system group |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019214334A1 (en) * | 2018-05-09 | 2019-11-14 | 浙江舜宇光学有限公司 | Camera lens set |
| US11287615B2 (en) | 2018-05-09 | 2022-03-29 | Zhejiang Sunny Optical Co., Ltd. | Camera lens set |
| CN108627954A (en) * | 2018-05-15 | 2018-10-09 | 辽宁中蓝电子科技有限公司 | A kind of imaging lens system group |
| CN108627954B (en) * | 2018-05-15 | 2024-01-23 | 辽宁中蓝光电科技有限公司 | Image pickup lens group |
| JP2020020852A (en) * | 2018-07-30 | 2020-02-06 | カンタツ株式会社 | Image capturing lens |
| JP7011986B2 (en) | 2018-07-30 | 2022-01-27 | 東京晨美光学電子株式会社 | Imaging lens |
| CN110989139A (en) * | 2019-12-24 | 2020-04-10 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN110989139B (en) * | 2019-12-24 | 2021-11-23 | 浙江舜宇光学有限公司 | Optical imaging lens |
| US11592647B2 (en) | 2019-12-24 | 2023-02-28 | Zhejiang Sunny Optical Co., Ltd | Optical imaging lens |
| CN113640940A (en) * | 2020-05-11 | 2021-11-12 | 新巨科技股份有限公司 | Five-piece infrared single-focus lens group |
| CN113805307A (en) * | 2020-06-12 | 2021-12-17 | 新巨科技股份有限公司 | Five-piece infrared single-focus lens group |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107608057B (en) | 2023-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207557562U (en) | Optical imaging lens | |
| CN107367827A (en) | Optical imaging lens | |
| CN109031629A (en) | imaging optical system | |
| CN108152934A (en) | Optical imaging lens | |
| CN107831588A (en) | Optical imaging lens | |
| CN106950681A (en) | Pick-up lens | |
| CN207123646U (en) | Optical imaging lens | |
| CN106842512A (en) | Pick-up lens | |
| CN107462977A (en) | Optical imaging lens | |
| CN109270662A (en) | Optical imaging lens | |
| CN108535843A (en) | Optical imaging system | |
| CN107490841A (en) | Imaging lens system group | |
| CN207473174U (en) | Imaging lens system group | |
| CN107436481A (en) | Imaging lens system group | |
| CN107608057A (en) | Imaging lens system group | |
| CN107315236A (en) | Imaging lens system group | |
| CN107219610A (en) | Imaging lens | |
| CN109491047A (en) | Optical imaging lens | |
| CN108761730A (en) | Pick-up lens | |
| CN209044159U (en) | Imaging optical system | |
| CN206710689U (en) | Pick-up lens | |
| CN109283665A (en) | Imaging lens | |
| CN207123647U (en) | Pick-up lens | |
| CN207264009U (en) | Imaging lens system group | |
| CN207336900U (en) | Imaging lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |