CN209356746U - Imaging lens, imaging device and electronic equipment - Google Patents
Imaging lens, imaging device and electronic equipment Download PDFInfo
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- CN209356746U CN209356746U CN201920163347.6U CN201920163347U CN209356746U CN 209356746 U CN209356746 U CN 209356746U CN 201920163347 U CN201920163347 U CN 201920163347U CN 209356746 U CN209356746 U CN 209356746U
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- 238000003384 imaging method Methods 0.000 title claims abstract description 152
- 230000003287 optical effect Effects 0.000 claims abstract description 37
- 210000001747 pupil Anatomy 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims description 14
- 238000012216 screening Methods 0.000 claims description 6
- 230000004075 alteration Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 3
- 230000035807 sensation Effects 0.000 description 3
- 230000000392 somatic effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
It successively includes the first lens group, iris ring and the second lens group by object side to image side that the utility model, which provides a kind of imaging lens, imaging device and electronic equipment, imaging lens,；First lens group successively includes the first lens and the second lens along object side to image side；Second lens group successively includes the third lens, the 4th lens, the 5th lens and the 6th lens along object side to image side；The effective focal length of imaging lens is f, and the imaging surface of the object side of the first lens to imaging lens is TTL in the distance on optical axis, and the Entry pupil diameters of imaging lens are EPD, and imaging lens meet the following conditions: 0.56 < f/TTL < 0.67, and f/EPD≤2.0.By the cooperation between each camera lens, the demand of camera lens miniaturization, large aperture is realized.
Description
Technical field
The utility model relates to optical image technology fields more particularly to a kind of imaging lens, imaging device and electronics to set
It is standby.
Background technique
In recent years, with the development of science and technology, portable electronic product gradually rises, have and minimize high pixel large aperture
Pick-up lens product obtains the favor of more people.
In order to meet the requirement of miniaturization, camera lens usually configures fixed aperture on the market at present, while realizing miniaturization
With good optical property, with the continuous development of smart electronics product, to imaging lens, more stringent requirements are proposed, especially
It is for varying environment, different scenes, the requirement difference for the camera lens depth of field is big, with the increase of sensitive component size, this
Class fixed aperture is unable to satisfy user's requirement.
Utility model content
The utility model provides a kind of miniaturized and portable imaging lens, imaging device and electronic equipment.
Specifically, the utility model is achieved by the following technical solution:
It is according to the present utility model in a first aspect, provide a kind of imaging lens, successively include first thoroughly by object side to image side
Microscope group and the second lens group are equipped with iris ring between first lens group and second lens group；
First lens group successively includes the first lens and the second lens along object side to image side；
Second lens group successively includes the third lens, the 4th lens, the 5th lens and the 6th along object side to image side
Lens；The object side of 5th lens is concave surface and image side surface is convex surface, and the object side of the 5th lens and image side surface are equal
With at least one point of inflexion；The object side of 6th lens is convex surface and image side surface is concave surface, the object of the 6th lens
Side and image side surface all have at least one point of inflexion；
The effective focal length of the imaging lens is f, the imaging surface of the object side of first lens to the imaging lens
It is TTL in the distance on optical axis, the Entry pupil diameters of the imaging lens are EPD, and the imaging lens meet the following conditions:
0.56 < f/TTL < 0.67, and f/EPD≤2.0.
Further, the radius of curvature of the object side of first lens is R11, the song of the image side surface of first lens
Rate radius is R12, and the imaging lens meet the following conditions:
0.09<|(R11-R12)/(R11+R12)|<0.1。
Further, the radius of curvature of the object side of second lens is R21, the song of the image side surface of second lens
Rate radius is R22, and the imaging lens meet the following conditions:
| R22 |>21, and 0.7<| (R21-R22)/(R21+R22) |<1.2.
Further, the third lens have negative tortuous power, and the object side of the third lens is concave surface and image side surface
Focal length for concave surface, the third lens is f3, and the imaging lens meet the following conditions:
-0.984<f3/f<-0.784。
Further, the 4th lens are Glass aspheric, and the refractive index of the 4th lens is ND, the imaging lens
Head meets the following conditions:
ND≥1.80。
Further, the first airspace is formed between the 5th lens and the 6th lens, described first is empty
Gas be interval on optical axis with a thickness of T56, the 5th lens are CT5 in the center thickness on optical axis, the 6th lens in
Center thickness on optical axis is CT6, and the imaging lens meet the following conditions:
0.6≤T56/CT5≤1.2, and 0.6≤T56/CT6≤1.0.
Further, the iris ring is between second lens and the third lens；Second lens
Image side surface and the iris ring object side between be formed with the second airspace, the object side of the third lens and institute
It states and is formed with third airspace between the image side surface of iris ring；Second airspace on optical axis with a thickness of T2s,
The third airspace is in, with a thickness of T3s, the focal length of first lens group is fsL1, second lens group on optical axis
Focal length be fsL2, the imaging lens meet the following conditions:
0.4<fsL1/fsL2<0.5, so that T2s>0.65 and T3s>1.0.
Further, the image side surface culminating point of the object center side vertex of first lens and second lens in
Distance on optical axis is SL1, the image side surface culminating point on the object center side vertex of the third lens and the 6th lens
It is SL2 in the distance on optical axis, the imaging lens meet the following conditions:
0.1 < SL1/TTL < 0.15, and 0.4 < SL2/TTL < 0.6.
Further, first lens have negative refracting power, and the object side of first lens is convex surface and image side surface
For concave surface.
Further, second lens have positive refracting power, and the object side of second lens is convex surface and image side surface
For concave surface or convex surface.
Further, the 4th lens have positive refracting power, and the object side of the 4th lens is concave surface and image side surface
For convex surface.
Further, the 5th lens have positive refracting power, and the 6th lens have negative refracting power.
Further, further include screening glass, be set between the 6th lens and the imaging surface of the imaging lens；Institute
Stating screening glass includes glass lens and optical filter.
Second aspect according to the present utility model, provides a kind of imaging device, including described in any embodiment as above at
As camera lens and electronics photosensitive element, the electronics photosensitive element is set on the imaging surface of the imaging lens.
The third aspect according to the present utility model, provides a kind of electronic equipment, including apparatus body and is set to the equipment
The imaging device of ontology, the imaging device include imaging lens described in any embodiment as above and electronics photosensitive element,
The electronics photosensitive element is set on the imaging surface of the imaging lens.
By the above technical solution provided by the embodiment of the utility model as it can be seen that the utility model embodiment by each camera lens it
Between cooperation, the object side and image side surface of the 5th lens and the 6th lens be respectively provided at least one point of inflexion, both can reduce
Between surplus, shorten optics total length, in favor of the miniaturization of imaging lens, and ghost can be effectively suppressed, to realize mirror
Head miniaturization, large aperture demand.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the imaging lens in an embodiment of the present invention.
Fig. 2 is the optical schematic diagram of the imaging lens in an embodiment of the present invention.
Fig. 3 is each face data table figure of the imaging lens in an embodiment of the present invention.
Fig. 4 is the focal length and ability distribution table figure of each lens of the imaging lens in an embodiment of the present invention.
Fig. 5 is the aspherical surface data table figure of the imaging lens in an embodiment of the present invention.
Fig. 6 is the chromatism of position distribution map of the imaging lens in an embodiment of the present invention.
Fig. 7 is the curvature of the image and distortion figure of the imaging lens in an embodiment of the present invention.
Fig. 8 is the relative illumination distribution map of the imaging lens in an embodiment of the present invention.
Fig. 9 is the ratio chromatism, distribution map of the imaging lens in an embodiment of the present invention.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as
The example of the consistent device and method of some aspects be described in detail in the appended claims, the utility model.
It is only to be not intended to be limiting this reality merely for for the purpose of describing particular embodiments in the term that the utility model uses
With novel.In the "an" of the utility model and singular used in the attached claims, " described " and "the"
Most forms are intended to include, unless the context clearly indicates other meaning.It is also understood that term used herein " and/
Or " refer to and include that one or more associated any or all of project listed may combine.
It should be appreciated that " first " " second " and similar word used in present specification and claims
It is not offered as any sequence, quantity or importance, and is used only to distinguish different component parts.Equally, "one" or
The similar word such as " one " does not indicate that quantity limits yet, but indicates that there are at least one.Unless otherwise noted, " front ", " after
The similar word such as portion ", " lower part " and/or " top " is not limited to a position or a kind of sky only to facilitate explanation
Between orient.The similar word such as " comprising " or "comprising" means to appear in element or object before " comprising " or "comprising"
Cover the element for appearing in " comprising " or "comprising" presented hereinafter or object and its equivalent, it is not excluded that other elements or
Object." connection " either the similar word such as " connected " is not limited to physics or mechanical connection, and may include
Electrical connection, it is either direct or indirect.
The utility model provides a kind of miniaturized and portable imaging lens, imaging device and electronic equipment.Below with reference to
The imaging lens, imaging device and electronic equipment of the utility model are described in detail in attached drawing.In the absence of conflict,
Feature in following embodiments and embodiment can be combined with each other.
The utility model embodiment provides a kind of imaging lens, successively includes the first lens group and second by object side to image side
Lens group is equipped with iris ring between first lens group and second lens group.In other examples, the iris ring
It could alternatively be fixed aperture.
Wherein, first lens group successively includes the first lens and the second lens along object side to image side.
Second lens group successively includes the third lens, the 4th lens, the 5th lens and the 6th along object side to image side
Lens.The object side (can be understood as the side for being proximate to object to be shot, be as shown in the figure left side) of 5th lens
For concave surface and image side surface (can be understood as the side for being proximate to the imaging surface for object to be shot to be imaged, as shown in the figure is right
Side) it is convex surface, the object side of the 5th lens and image side surface all have at least one point of inflexion.The object of 6th lens
Side is convex surface and image side surface is concave surface, and the object side of the 6th lens and image side surface all have at least one point of inflexion.
The effective focal length of the imaging lens is f, the imaging surface of the object side of first lens to the imaging lens
It is TTL (Total Track Length, optics overall length) in the distance on optical axis, the Entry pupil diameters of the imaging lens are EPD,
The imaging lens meet the following conditions: 0.56 < f/TTL < 0.67, and f/EPD≤2.0.
By above technical scheme as it can be seen that the imaging lens of the utility model, pass through the cooperation between each camera lens, the 5th lens
It is respectively provided at least one point of inflexion with the object side of the 6th lens and image side surface, can reduce surplus between the two, shortens light
Total length is learned, in favor of the miniaturization of imaging lens, and ghost can be effectively suppressed, to realize camera lens miniaturization, large aperture
Demand.
Referring to figure 1 and figure 2, in one embodiment, imaging lens 100 provided by the embodiment of the utility model,
By object side (can be understood as the side of object to be shot, be as shown in the figure left side) to image side (can be understood as at
Be as shown in the figure right side as the side of the imaging surface of object to be shot) successively include the first lens group 10 and the second lens group 20,
Iris ring 30 is equipped between first lens group 10 and second lens group 20.It is appreciated that in other embodiments
In, fixed aperture etc. can be equipped with according to actual needs between first lens group 10 and second lens group 20
Suitable aperture, is not limited thereto.
Wherein, first lens group 10 successively includes the first lens 11 and the second lens 12 along object side to image side.It is described
Second lens group 20 successively includes the third lens 21, the 4th lens 22, the 5th lens 23 and the 6th lens along object side to image side
24.It should be understood that the lens of imaging lens 100 are six altogether, iris ring 30 is set to the second lens of the first lens group 10
12 and second lens group 20 the third lens 21 between.
First lens 11, the second lens 12, the third lens 21, the 4th lens 22, the 5th lens 23 and the 6th lens 24
In between adjacent lens in all having a air gap, that is, the first lens 11, the second lens 12, the third lens on optical axis 80
21, the 4th lens 22, the 5th lens 23 and the 6th lens 24 can be six single non-bonding lens.Due to bonding lens
The more non-bonding lens of technique are complicated, need to possess the curved surface of high accuracy, in the bond area of two lens especially to reach two lens
High adaptation when bonding, and during bonding, it is more likely to cause to move axis defect because of deviation, influences the whole of imaging lens
Bulk optics image quality.Therefore, the imaging lens 100 of the utility model can be had using the configuration of six single non-bonding lens
Effect avoids the problem that bonding lens.
Wherein, the first lens 11 have a negative refracting power, the object sides of first lens 11 (can be understood as being proximate to
The side for shooting object, is as shown in the figure left side) it is convex surface and image side surface (can be understood as being proximate to be captured for being imaged
The side of the imaging surface of object is as shown in the figure right side) it is concave surface, marginal aberration that can effectively at modified off-axis.
Second lens 12 have positive refracting power, and the object side of second lens 12 is convex surface and image side surface is concave surface or convex
Face.In the present embodiment, the object side of second lens 12 is convex surface and image side surface is concave surface, can be effectively to the first lens institute
The aberration of generation makes corrections.Certainly, in other examples, the object side of second lens 12 is convex surface and image side surface is convex
Face, can regard actual needs adjustment, the utility model to this with no restriction.
The third lens 21 have negative refracting power, and the object side of the third lens 21 is concave surface and image side surface is concave surface.
4th lens 22 have positive refracting power, and the object side of the 4th lens 22 is concave surface and image side surface is convex surface, the
The collocation configuration of four lens and the third lens helps further to correct aberration.
5th lens 23 have positive refracting power, and the object side of the 5th lens 23 is concave surface and image side surface is convex surface, institute
The object side and image side surface for stating the 5th lens 23 all have at least one point of inflexion 90, with reference to as shown in Figure 1, the 5th lens 23
The setting of object side is disposed with from top to bottom there are three the point of inflexion 90 and switchs to the point of inflexion 90 of concave surface by convex surface, turned by concave surface
Switch to the point of inflexion 90 of concave surface for the point of inflexion 90 on convex surface and by convex surface, i.e. the object side of the 5th lens 23 can be understood as
It is that concave surface switchs to convex surface and switchs to the waveform that concave surface is constituted again, in this way, it is too big to can avoid marginal ray specific refraction angle, and subtracts
The generation of few coma, while being also beneficial to minimize imaging lens to the full extent.
In the present embodiment, the object side of the 5th lens 23 and image side surface are all provided with there are three the point of inflexion 90.Certainly, at other
In example, the quantity of the point of inflexion of the object side and image side surface of the 5th lens 23 can be adjusted according to actual needs, this reality
With it is novel to this with no restriction.
6th lens 24 have negative refracting power, and the object side of the 6th lens 24 is convex surface and image side surface is concave surface, institute
The object side and image side surface for stating the 6th lens 24 all have at least one point of inflexion 90.
In the present embodiment, the object side of the 6th lens 24 and image side surface are all provided with there are three the point of inflexion.Certainly, in other examples
In son, the quantity of the point of inflexion of the object side and image side surface of the 6th lens 24 can be adjusted according to actual needs, this is practical
It is novel to this with no restriction.
The effective focal length of the imaging lens 100 is f, the object side of first lens 11 to the imaging lens 100
Imaging surface 40 in the distance on optical axis 80 be TTL, the Entry pupil diameters of the imaging lens 100 are EPD, the imaging lens
100 meet the following conditions: 0.56 < f/TTL < 0.67, and f/EPD≤2.0.
By above technical scheme as it can be seen that the imaging lens 100 of the utility model, by the cooperation between each camera lens, the 5th
The object side and image side surface of lens 23 and the 6th lens 24 are respectively provided at least one point of inflexion 90, can reduce between the two remaining
Amount shortens optics total length, in favor of the miniaturization of imaging lens 100, and ghost can be effectively suppressed, to realize that camera lens is small-sized
The demand of change.
In one optionally embodiment, the imaging lens 100 of the utility model can also include screening glass 50, be set to
Between 6th lens 24 and the imaging surface 40 of the imaging lens 100, it can play a protective role to lens.Optionally,
The screening glass 50 includes glass lens and optical filter.
In one optionally embodiment, the radius of curvature of the object side of first lens 11 is R11, and described first thoroughly
The radius of curvature of the image side surface of mirror 11 is R12, and the imaging lens 100 meet the following conditions: 0.09 < | (R11-R12)/(R11+
R12)|<0.1。
The imaging lens 100 of the utility model meet above-mentioned condition, can effectively eliminate the distortion energy of imaging lens 100
Power, while but also the optical system of imaging lens 100 has preferable flat field Qu Nengli.
In one optionally embodiment, the radius of curvature of the object side of second lens 12 is R21, and described second thoroughly
The radius of curvature of the image side surface of mirror 12 is R22, and the imaging lens 100 meet the following conditions: | R22 |>21, and 0.7<| (R21-
R22)/(R21+R22)|<1.2。
If the radius of curvature of the image side surface of the second lens 12 is too small, it is possible that the anti-shadow phenomenon of total reflection.Therefore
The imaging lens 100 of the utility model meet above-mentioned condition, can effectively inhibit wide-angle bring veiling glare problem.
In one optionally embodiment, the focal length of the third lens 21 is f3, and the imaging lens 100 meet following
Condition: -0.984 < f3/f < -0.784.The imaging lens 100 of the utility model meet above-mentioned condition, can be more advantageous to collocation
In other lenses, such as the present embodiment, the light transition in the first lens group 10 is propagated into the second lens group 20.
In one optionally embodiment, the material of each lens can be plastics or glass.When lens material be glass,
The freedom degree of refracting power configuration can be increased.When lens material use plastics, then production cost can be effectively reduced.In addition,
Can be aspherical to be easy to be fabricated to the shape other than spherical surface in being arranged on lens surface aspherical (ASP), obtain more control
Variable processed uses the number of lens to cut down aberration, and then needed for reducing, therefore the optics of imaging lens can be effectively reduced
Total length, and then reach miniaturization.
In the present embodiment, the 4th lens 22 are Glass aspheric, and the refractive index of the 4th lens 22 is ND, institute
It states imaging lens 100 and meets the following conditions: ND >=1.80.The imaging lens 100 of the utility model meet above-mentioned condition, Ke Yiyou
Effect improves off-axis aberration, while being conducive to correct camera lens shooting angle, can preferably match photosensitive element.
In one optionally embodiment, the first air is formed between the 5th lens 23 and the 6th lens 24
Interval, first airspace is in, with a thickness of T56, the 5th lens 23 are in the center thickness on optical axis 80 on optical axis 80
For CT5, the 6th lens 24 are CT6 in the center thickness on optical axis 80, and the imaging lens 100 meet the following conditions: 0.6
≤ T56/CT5≤1.2, and 0.6≤T56/CT6≤1.0.
The imaging lens 100 of the utility model meet above-mentioned condition, can be effectively improved the 5th lens 23 and the 6th lens
Mirror-reflection between 24, effectively inhibition ghost.It is also beneficial to camera lens miniaturization simultaneously.
In one optionally embodiment, the iris ring 30 is located at second lens 12 and the third lens 21
Between.The second airspace, institute are formed between the image side surface of second lens 12 and the object side of the iris ring 30
It states and is formed with third airspace between the object side of the third lens 21 and the image side surface of the iris ring 30.Described second is empty
Gas be interval on optical axis 80 with a thickness of T2s, the third airspace is in, with a thickness of T3s, described first thoroughly on optical axis 80
The focal length of microscope group 10 is fsL1, and the focal length of second lens group 20 is fsL2, and the imaging lens 100 meet the following conditions:
0.4<fsL1/fsL2<0.5, so that T2s>0.65 and T3s>1.0.
In one optionally embodiment, the object center side vertex of first lens 11 and second lens 12
Image side surface culminating point is SL1, the object center side vertex of the third lens 21 and the described 6th in the distance on optical axis 80
The image side surface culminating point of lens 24 is SL2 in the distance on optical axis 80, and the imaging lens 100 meet the following conditions: 0.1 <
SL1/TTL < 0.15, and 0.4 < SL2/TTL < 0.6.
The imaging lens 100 of the utility model meet above-mentioned condition, and such purpose is conducive to camera lens miniaturization, while also having
Large aperture is kept conducive under the premise of big visual angle.
Referring to Fig. 3 to shown in Fig. 5, Fig. 3 is the supplemental characteristic in each face of the imaging lens 100 of the utility model for cooperation,
And surface 1 to 17 is sequentially indicated by the surface of object side to image side.Fig. 4 is each lens of the imaging lens 100 of the utility model
Focal length and ability distribution, wherein in Fig. 4 right side table reflect the utility model imaging lens 100 main light
Learn performance parameter, including visual angle, optical distortion and f-number.Fig. 5 is the aspherical number of the imaging lens 100 of the utility model
According to A2 to A16 indicates the 2nd to the 16 rank asphericity coefficient on each surface.
Cooperation can be seen that the imaging lens of the utility model referring to Fig. 6 to Fig. 9, and chromatism of position is small, distort small, relatively
Illumination is high, and ratio chromatism, is small.Therefore, imaging lens provided by the embodiment of the utility model, visual demand are applied to mobile focusing
Optical system in, and have both the characteristic of excellent lens error correction Yu good image quality.It is provided by the embodiment of the utility model at
As camera lens, it many-sided can also be applied to three-dimensional (3D) image capture, digital still camera, running gear, tablet computer, intelligent electric
Depending on, network monitoring device, automobile data recorder, reversing developing apparatus, in the electronic equipments such as somatic sensation television game machine and wearable device.
The utility model embodiment also provides a kind of imaging device, including imaging lens and electronics photosensitive element, described
Electronics photosensitive element is set on the imaging surface of the imaging lens.It should be noted that in above-described embodiment and embodiment
The description as described in the imaging lens is equally applicable to the imaging device of the utility model.The imaging device of the utility model is adopted
With above-mentioned imaging lens, visual demand is applied in the optical system of mobile focusing, and has both excellent lens error correction and good
The characteristic of image quality.Imaging lens provided by the embodiment of the utility model many-sided can also be applied to three-dimensional (3D) image and pick
It takes, digital still camera, running gear, tablet computer, intelligent TV, network monitoring device, automobile data recorder, reversing development dress
It sets, in the electronic equipments such as somatic sensation television game machine and wearable device.
The utility model embodiment also provides a kind of electronic equipment, including apparatus body and set on the apparatus body at
As device.Wherein, imaging device includes imaging lens and electronics photosensitive element, the electronics photosensitive element be set to it is described at
As camera lens imaging surface on.It should be noted that the description as described in the imaging lens in above-described embodiment and embodiment, together
Sample is suitable for the electronic equipment of the utility model.The electronic equipment of the utility model uses above-mentioned imaging lens, can be three
Tie up (3D) image capture, digital still camera, running gear, tablet computer, intelligent TV, network monitoring device, automobile data recorder,
The electronic equipments such as reversing developing apparatus, somatic sensation television game machine and wearable device.
The above is only the preferred embodiment of the utility model, not does in any form to the utility model
Limitation, although the utility model has been disclosed with preferred embodiment as above, is not intended to limit the utility model, any to be familiar with
Professional and technical personnel, in the range of not departing from technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment for being modified or being modified to equivalent variations, but all without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still
It is within the scope of the technical solutions of the present invention.
This patent document disclosure includes material protected by copyright.The copyright is all for copyright holder.Copyright
Owner does not oppose the patent document in the presence of anyone replicates the proce's-verbal of Patent&Trademark Office and archives or should
Patent discloses.
Claims (15)
1. a kind of imaging lens, which is characterized in that it by object side to image side successively include the first lens group and the second lens group, it is described
Iris ring is equipped between first lens group and second lens group；
First lens group successively includes the first lens and the second lens along object side to image side；
Second lens group successively includes the third lens, the 4th lens, the 5th lens and the 6th lens along object side to image side；
The object side of 5th lens is concave surface and image side surface is convex surface, the object side of the 5th lens and image side surface all have to
Few point of inflexion；The object side of 6th lens is convex surface and image side surface is concave surface, the object side of the 6th lens and
Image side surface all has at least one point of inflexion；
The effective focal length of the imaging lens is f, and the imaging surface of the object side of first lens to the imaging lens is in light
Distance on axis is TTL, and the Entry pupil diameters of the imaging lens are EPD, and the imaging lens meet the following conditions:
0.56 < f/TTL < 0.67, and f/EPD≤2.0.
2. imaging lens according to claim 1, which is characterized in that the radius of curvature of the object side of first lens is
The radius of curvature of R11, the image side surface of first lens are R12, and the imaging lens meet the following conditions:
0.09<|(R11-R12)/(R11+R12)|<0.1。
3. imaging lens according to claim 1, which is characterized in that the radius of curvature of the object side of second lens is
The radius of curvature of R21, the image side surface of second lens are R22, and the imaging lens meet the following conditions:
| R22 |>21, and 0.7<| (R21-R22)/(R21+R22) |<1.2.
4. imaging lens according to claim 1, which is characterized in that the third lens have negative tortuous power, and described the
The object side of three lens is concave surface and image side surface is concave surface, and the focal lengths of the third lens is f3, the imaging lens meet with
Lower condition:
-0.984<f3/f<-0.784。
5. imaging lens according to claim 1, which is characterized in that the 4th lens are Glass aspheric, described the
The refractive index of four lens is ND, and the imaging lens meet the following conditions:
ND≥1.80。
6. imaging lens according to claim 1, which is characterized in that shape between the 5th lens and the 6th lens
At there is the first airspace, first airspace is in, with a thickness of T56, the 5th lens are on optical axis on optical axis
The heart is CT6 in the center thickness on optical axis with a thickness of CT5, the 6th lens, and the imaging lens meet the following conditions:
0.6≤T56/CT5≤1.2, and 0.6≤T56/CT6≤1.0.
7. imaging lens according to claim 1, which is characterized in that the iris ring is located at second lens and institute
It states between the third lens；It is formed between the second air between the image side surface of second lens and the object side of the iris ring
Every being formed with third airspace between the object side of the third lens and the image side surface of the iris ring；Described second
Airspace on optical axis with a thickness of T2s, the third airspace on optical axis with a thickness of T3s, first lens
The focal length of group is fsL1, and the focal length of second lens group is fsL2, and the imaging lens meet the following conditions:
0.4<fsL1/fsL2<0.5, so that T2s>0.65 and T3s>1.0.
8. imaging lens according to claim 1, which is characterized in that the object center side vertex of first lens and institute
It is SL1 that the image side surface culminating points of the second lens, which is stated, in the distance on optical axis, the object center side vertex of the third lens with
The image side surface culminating point of 6th lens is SL2 in the distance on optical axis, and the imaging lens meet the following conditions:
0.1 < SL1/TTL < 0.15, and 0.4 < SL2/TTL < 0.6.
9. imaging lens according to claim 1, which is characterized in that first lens have a negative refracting power, and described the
The object side of one lens is convex surface and image side surface is concave surface.
10. imaging lens according to claim 1, which is characterized in that second lens have a positive refracting power, and described the
The object side of two lens is convex surface and image side surface is concave surface or convex surface.
11. imaging lens according to claim 1, which is characterized in that the 4th lens have a positive refracting power, and described the
The object side of four lens is concave surface and image side surface is convex surface.
12. imaging lens according to claim 1, which is characterized in that the 5th lens have a positive refracting power, and described the
Six lens have negative refracting power.
13. imaging lens according to claim 1, which is characterized in that further include screening glass, be set to the 6th lens
Between the imaging surface of the imaging lens；The screening glass includes glass lens and optical filter.
14. a kind of imaging device, which is characterized in that including as described in any one of claims 1 to 13 imaging lens and
Electronics photosensitive element, the electronics photosensitive element are set on the imaging surface of the imaging lens.
15. a kind of electronic equipment, which is characterized in that described including apparatus body and set on the imaging device of the apparatus body
Imaging device includes the imaging lens and electronics photosensitive element as described in any one of claims 1 to 13, the sense electronics
Optical element is set on the imaging surface of the imaging lens.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920163347.6U CN209356746U (en) | 2019-01-30 | 2019-01-30 | Imaging lens, imaging device and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920163347.6U CN209356746U (en) | 2019-01-30 | 2019-01-30 | Imaging lens, imaging device and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN209356746U true CN209356746U (en) | 2019-09-06 |
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| CN201920163347.6U Expired - Fee Related CN209356746U (en) | 2019-01-30 | 2019-01-30 | Imaging lens, imaging device and electronic equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110602365A (en) * | 2019-09-24 | 2019-12-20 | Oppo广东移动通信有限公司 | Lens, camera and electronic device |
| CN111316151A (en) * | 2019-01-30 | 2020-06-19 | 深圳市大疆创新科技有限公司 | Imaging lens, imaging device and electronic equipment |
-
2019
- 2019-01-30 CN CN201920163347.6U patent/CN209356746U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111316151A (en) * | 2019-01-30 | 2020-06-19 | 深圳市大疆创新科技有限公司 | Imaging lens, imaging device and electronic equipment |
| CN111316151B (en) * | 2019-01-30 | 2022-07-15 | 深圳市大疆创新科技有限公司 | Imaging lens, imaging device and electronic equipment |
| CN110602365A (en) * | 2019-09-24 | 2019-12-20 | Oppo广东移动通信有限公司 | Lens, camera and electronic device |
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