CN106680974A - Camera lens - Google Patents

Camera lens Download PDF

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Publication number
CN106680974A
CN106680974A CN201710085671.6A CN201710085671A CN106680974A CN 106680974 A CN106680974 A CN 106680974A CN 201710085671 A CN201710085671 A CN 201710085671A CN 106680974 A CN106680974 A CN 106680974A
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CN
China
Prior art keywords
lens
pick
lenss
optical axis
image side
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Granted
Application number
CN201710085671.6A
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Chinese (zh)
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CN106680974B (en
Inventor
戴付建
黄林
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Zhejiang Sunny Optics Co Ltd
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Zhejiang Sunny Optics Co Ltd
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Application filed by Zhejiang Sunny Optics Co Ltd filed Critical Zhejiang Sunny Optics Co Ltd
Priority to CN201710085671.6A priority Critical patent/CN106680974B/en
Priority to CN202210490029.7A priority patent/CN114779443B/en
Publication of CN106680974A publication Critical patent/CN106680974A/en
Application granted granted Critical
Publication of CN106680974B publication Critical patent/CN106680974B/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

The invention provides a camera lens. The camera lens comprises a first lens and a plurality of follow-up lenses along an optical axis sequentially from an object side to an image side and has a total effective focal length f and an EPD (entrance pupil diameter), and the camera lens further comprises a photosensitive element arranged on an imaging surface. The camera lens is characterized in that the first lens with a convex object side has a positive refraction power, and the total effective focal length f, EPD and half ImgH of a diagonal of an effective pixel area of the photosensitive element meet conditions that f/EPD is smaller than or equal to 2 and ImgH/f is larger than 0.85.

Description

Pick-up lenss
Technical field
The application is related to a kind of pick-up lenss, and in particular to a kind of wide-angle camera of miniaturization.
Background technology
In recent years, with the development of science and technology, portable type electronic product progressively rises, the portable electronic with camera function Product obtains people more to be favored.The photo-sensitive cell of conventional pick-up lenss is generally CCD (Charge-Coupled Device, photosensitive coupling element) or CMOS (Complementary Metal-Oxide Semiconductor, complementarity oxidation Metal semiconductor element).With the raising and the reduction of size of CCD and COMS element functions, for the pick-up lenss for matching Miniaturization with imaging high quality put forward higher requirement.
Accordingly, it would be desirable to it is a kind of be applicable to portable type electronic product with the big angle of visual field, small size and high imaging product The pick-up lenss of matter.
The content of the invention
The technical scheme that the application is provided solves the problems, such as at least in part techniques discussed above.
On the one hand, this application provides a kind of pick-up lenss.The pick-up lenss are sequentially wrapped by thing side along optical axis to image side The first lens and multiple subsequent lens are included, and with total effective focal length f and entrance pupil diameter EPD, wherein, the pick-up lenss Also include the photo-sensitive cell being arranged on imaging surface, first lens have positive refracting power and its thing side is convex surface；With And the half of the effective pixel area diagonal line length of total effective focal length f, the entrance pupil diameter EPD and the photo-sensitive cell Meet between ImgH：f/EPD≤2；And ImgH/f>0.85.The pick-up lenss of the application can realize large aperture, ultra-thin effect Really, and with high image quality.
According to the application embodiment, the plurality of subsequent lens include：The second lens with negative refracting power, wherein, The spacing distance T12 of first lens and second lens on the optical axis with from first lens thing side to Meet 0.08 apart from TTL on the axle of the imaging surface of the pick-up lenss<T12/TTL<0.12.
According to the application embodiment, the plurality of subsequent lens also include be located at second lens and the image side it Between the 3rd lens, wherein, the 3rd lens have positive refracting power, its image side surface be convex surface；And wherein, described first is saturating The spacing distance T12 of mirror and second lens on the optical axis is with second lens and the 3rd lens in the light Spacing distance T23 on axle meets 4<T12/T23<13.5.
According to the application embodiment, the plurality of subsequent lens also include be located at the 3rd lens and the image side it Between the 4th lens and the 5th lens, wherein, the thing side of the 4th lens is the image side of concave surface and the 5th lens Face is concave surface.
According to the intersection point of the application embodiment, the 3rd lens image side surface and the optical axis to the first lens thing Intersection point on axle between the effective radius summit of side apart from SAG32 and the 4th lens thing side and the optical axis is to institute State and meet 0.5 apart from SAG41 on the axle between the effective radius summit of the first lens thing side<SAG32/SAG41<1.
According to the application embodiment, effective focal length f3 of effective focal length f2 of second lens and the 3rd lens Meet -5<f2/f3<-1.8.
According to the application embodiment, effective focal length f3 of the 3rd lens and effective focal length f4 of the 4th lens Meet | f3/f4 |<0.8.
According to the application embodiment, radius of curvature R 6 and the 4th lens thing side of the 3rd lens image side surface Radius of curvature R 7 meet 1.4<R6/R7<2.1.
According to the application embodiment, radius of curvature R 7 and the 4th lens image side surface of the 4th lens thing side Radius of curvature R 8 meet 0.5<R7/R8<1.3.
According to the application embodiment, the center thickness CT3 on the optical axis is saturating with the described 5th for the 3rd lens Center thickness CT5 of the mirror on the optical axis meets 0.8<CT3/CT5<1.5.
On the other hand, this application provides a kind of pick-up lenss.The pick-up lenss are included along optical axis from thing side to image side First lens of sequential, the second lens, the 3rd lens and multiple subsequent lens, first lens and described second saturating Spacing distances of spacing distance T12 of the mirror on the optical axis with second lens and the 3rd lens on the optical axis T23 meets 4<T12/T23<13.5.
According to the application embodiment, from the axle of the imaging surface of the thing side to the pick-up lenss of first lens Distance is TTL, and the spacing distance T12 of first lens and second lens on the optical axis meets 0.08<T12/TTL <0.12。
According to the application embodiment, first lens have positive refracting power and its thing side is convex surface.
According to the application embodiment, second lens are arranged in the into image side and in the wrong with bearing of first lens Folding power.
According to the application embodiment, the 3rd lens be arranged in second lens into image side, the described 3rd is saturating Mirror has positive refracting power and its image side surface is convex surface.
According to the application embodiment, the pick-up lenss also include being located at the 3rd lens into the 4th saturating of image side Mirror, the thing side of the 4th lens is concave surface, wherein, the 3rd effective focal length f3 of lens and having for the 4th lens Effect focal length f4 meets | f3/f4 |<0.8.
According to the application embodiment, the pick-up lenss also include being located at the 4th lens into the 5th saturating of image side Mirror, the image side surface of the 5th lens is concave surface, wherein, center thickness CT3 and institute of the 3rd lens on the optical axis State center thickness CT5 of the 5th lens on the optical axis and meet 0.8<CT3/CT5<1.5.
According to the application embodiment, total effective focal length f of the pick-up lenss, entrance pupil diameter EPD and photo-sensitive cell Half ImgH of effective pixel area diagonal line length meet following condition：f/EPD≤2；And ImgH/f>0.85.
On the other hand, this application provides a kind of pick-up lenss.The pick-up lenss along optical axis by thing side to image side sequentially Including：First lens, with positive refracting power, its thing side is convex surface；Second lens, with negative refracting power；3rd lens, have Positive refracting power, its image side surface is convex surface；4th lens, with refracting power, its thing side is concave surface；And the 5th lens, have Refracting power, its image side surface is concave surface；Wherein, the spacing distance of first lens and second lens on the optical axis Spacing distance T23s of the T12 with second lens and the 3rd lens on the optical axis meets 4<T12/T23<13.5.
According to the application embodiment, the pick-up lenss also include：Photo-sensitive cell, is arranged on imaging surface, wherein, institute State the effective pixel region of total effective focal length f of pick-up lenss, the entrance pupil diameter EPD of the pick-up lenss and the photo-sensitive cell Meet between half ImgH of domain diagonal line length：f/EPD≤2；And ImgH/f>0.85.
On the other hand, this application provides a kind of pick-up lenss.The pick-up lenss are included along optical axis from thing side to image side First lens of sequential, the second lens, the 3rd lens, the 4th lens and at least one subsequent lens.Described 3rd is saturating Apart from SAG32 on axle between the effective radius summit of the intersection point of mirror image side and the optical axis to the first lens thing side And the effective radius summit of the intersection point of the 4th lens thing side and the optical axis to the first lens thing side between Meet 0.5 apart from SAG41 on axle<SAG32/SAG41<1.
According to the application embodiment, the spacing distance of first lens and second lens on the optical axis T12 meets 0.08 with from the axle of the imaging surface of the thing side to the pick-up lenss of first lens apart from TTL<T12/ TTL<0.12。
According to the application embodiment, effective focal length f3 of effective focal length f2 of second lens and the 3rd lens Meet -5<f2/f3<-1.8.
According to the application embodiment, the spacing distance of first lens and second lens on the optical axis Spacing distance T23s of the T12 with second lens and the 3rd lens on the optical axis meets 4<T12/T23<13.5.
According to the application embodiment, effective focal length f3 of the 3rd lens and effective focal length f4 of the 4th lens Meet | f3/f4 |<0.8.
According to the application embodiment, radius of curvature R 6 and the 4th lens thing side of the 3rd lens image side surface Radius of curvature R 7 meet 1.4<R6/R7<2.1.
According to the application embodiment, radius of curvature R 7 and the 4th lens image side surface of the 4th lens thing side Radius of curvature R 8 meet 0.5<R7/R8<1.3.
According to the intersection point of the application embodiment, the 3rd lens image side surface and the optical axis to the first lens thing Intersection point on axle between the effective radius summit of side apart from SAG32 and the 4th lens thing side and the optical axis is to institute State and meet 0.5 apart from SAG41 on the axle between the effective radius summit of the first lens thing side<SAG32/SAG41<1.
According to the application embodiment, the center thickness CT3 on the optical axis is saturating with the described 5th for the 3rd lens Center thickness CT5 of the mirror on the optical axis meets 0.8<CT3/CT5<1.5.
According to the application embodiment, the maximum field of view angle FOV of the pick-up lenss meets FOV>85°.
The application employs multi-disc (for example, five) glass lens, by the focal length of reasonable distribution each eyeglass and face type, There can be following at least one advantage：
Effectively expand the angle of visual field；
Shorten camera lens total length；
Ensure the wide angle and miniaturization of camera lens；
Correct all kinds of aberrations；And
Improve the resolution and image quality of camera lens.
Description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application other Feature, objects and advantages will become more apparent upon：
Fig. 1 is the structural representation for illustrating the pick-up lenss according to the embodiment of the present application 1；
Fig. 2A shows chromatic curve on the axle of the pick-up lenss of embodiment 1；
Fig. 2 B show the astigmatism curve of the pick-up lenss of embodiment 1；
Fig. 2 C show the distortion curve of the pick-up lenss of embodiment 1；
Fig. 2 D show the ratio chromatism, curve of the pick-up lenss of embodiment 1；
Fig. 3 is the structural representation for illustrating the pick-up lenss according to the embodiment of the present application 2；
Fig. 4 A show chromatic curve on the axle of the pick-up lenss of embodiment 2；
Fig. 4 B show the astigmatism curve of the pick-up lenss of embodiment 2；
Fig. 4 C show the distortion curve of the pick-up lenss of embodiment 2；
Fig. 4 D show the ratio chromatism, curve of the pick-up lenss of embodiment 2；
Fig. 5 is the structural representation for illustrating the pick-up lenss according to the embodiment of the present application 3；
Fig. 6 A show chromatic curve on the axle of the pick-up lenss of embodiment 3；
Fig. 6 B show the astigmatism curve of the pick-up lenss of embodiment 3；
Fig. 6 C show the distortion curve of the pick-up lenss of embodiment 3；
Fig. 6 D show the ratio chromatism, curve of the pick-up lenss of embodiment 3；
Fig. 7 is the structural representation for illustrating the pick-up lenss according to the embodiment of the present application 4；
Fig. 8 A show chromatic curve on the axle of the pick-up lenss of embodiment 4；
Fig. 8 B show the astigmatism curve of the pick-up lenss of embodiment 4；
Fig. 8 C show the distortion curve of the pick-up lenss of embodiment 4；
Fig. 8 D show the ratio chromatism, curve of the pick-up lenss of embodiment 4；
Fig. 9 is the structural representation for illustrating the pick-up lenss according to the embodiment of the present application 5；
Figure 10 A show chromatic curve on the axle of the pick-up lenss of embodiment 5；
Figure 10 B show the astigmatism curve of the pick-up lenss of embodiment 5；
Figure 10 C show the distortion curve of the pick-up lenss of embodiment 5；
Figure 10 D show the ratio chromatism, curve of the pick-up lenss of embodiment 5；
Figure 11 is the structural representation for illustrating the pick-up lenss according to the embodiment of the present application 6；
Figure 12 A show chromatic curve on the axle of the pick-up lenss of embodiment 6；
Figure 12 B show the astigmatism curve of the pick-up lenss of embodiment 6；
Figure 12 C show the distortion curve of the pick-up lenss of embodiment 6；
Figure 12 D show the ratio chromatism, curve of the pick-up lenss of embodiment 6；
Figure 13 is the structural representation for illustrating the pick-up lenss according to the embodiment of the present application 7；
Figure 14 A show chromatic curve on the axle of the pick-up lenss of embodiment 7；
Figure 14 B show the astigmatism curve of the pick-up lenss of embodiment 7；
Figure 14 C show the distortion curve of the pick-up lenss of embodiment 7；
Figure 14 D show the ratio chromatism, curve of the pick-up lenss of embodiment 7；
Figure 15 is the structural representation for illustrating the pick-up lenss according to the embodiment of the present application 8；
Figure 16 A show chromatic curve on the axle of the pick-up lenss of embodiment 8；
Figure 16 B show the astigmatism curve of the pick-up lenss of embodiment 8；
Figure 16 C show the distortion curve of the pick-up lenss of embodiment 8；
Figure 16 D show the ratio chromatism, curve of the pick-up lenss of embodiment 8；
Specific 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 illustrative embodiments simply to the application in detail, rather than limit the application by any way Scope.In the specification, identical reference numbers identical element.Statement "and/or" includes associated institute Any and whole combination of one or more in list of items.
It should be understood that, although the grade of term first, second can be used to describe herein various elements, part, region, Layer and/or section, but these elements, part, region, layer and/or Duan Buying are limited by these terms.These terms be only used for by One element, part, region, layer or section and another element, part, region, layer or section are distinguished.Therefore, without departing substantially from this In the case of the teaching of application, the first element discussed below, first component, first area, ground floor or first paragraph can quilts Referred to as the second element, second component, second area, the second layer or second segment.
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 aspheric shape be illustrated by way of example.That is, sphere or aspheric shape are not limited to accompanying drawing In the sphere that illustrates or aspheric shape.Accompanying drawing is merely illustrative and and non-critical is drawn to scale.
It will also be appreciated that term " including ", " including ", " having ", "comprising" and/or " including ", when in this theory Represent there is stated feature, entirety, step, operation, element and/or part when used in bright book, but do not exclude the presence of or It is attached with one or more of the other feature, entirety, step, operation, element, part and/or combinations thereof.Additionally, ought be such as When the statement of at least one of " ... " is occurred in after the list of listed feature, the whole listed feature of modification, rather than modify Individual component in list.Additionally, when presently filed embodiment is described, use " can with " represent " one of the application or Multiple embodiments ".Also, term " exemplary " is intended to refer to example or illustration.
As it is used in the present context, term " substantially ", " about " and the similar term approximate term of tabulation, and Without the term of tabulation degree, and it is intended to illustrate recognized by those of ordinary skill in the art, measured value or value of calculation In inherent variability.
Unless otherwise defined, all terms (including technical terms and scientific words) otherwise 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 is (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 To not explained with idealization or excessively formal sense, unless clearly such herein limit.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the application in detail.
The application is further described below in conjunction with specific embodiment.
There is total effective focal length f and entrance pupil diameter EPD according to the pick-up lenss of the application illustrative embodiments, and May include the first lens, multiple subsequent lens and the photo-sensitive cell being arranged in order from thing side to image side along optical axis.
In the exemplary embodiment, the first lens can have positive refracting power and its thing side can be convex surface.Camera lens Can meet f/EPD≤2, for example, 1.875≤f/EPD between total effective focal length f and the entrance pupil diameter EPD of pick-up lenss of head ≤1.989.This can be conducive to increasing thang-kng amount, make system have large aperture advantage, strengthen the imaging effect under dark situation.Shooting Can meet ImgH/f between half ImgH of total effective focal length f of camera lens and the effective pixel area diagonal line length of photo-sensitive cell> 0.85, for example, 0.997≤ImgH/f≤1.013；Wherein, sensor devices are arranged on imaging surface.Configure according to above-mentioned relation Pick-up lenss, can improve the angle of visual field while miniaturization is ensured, and effectively correct aberration, astigmatism and ratio chromatism, on such as axle Etc. all kinds of aberrations, so as to lift image quality.
In the exemplary embodiment, multiple subsequent lens may include second lens with negative refracting power.First lens On the axle of the imaging surface of the thing side to pick-up lenss of spacing distance T12 and the first lens with the second lens on the optical axis 0.08 can be met between TTL<T12/TTL<0.12, for example, 0.089≤T12/TTL≤0.113.By rationally arranging the Apart from TTL on the axle of the imaging surface of the thing side to pick-up lenss of one lens, camera lens overall length can be constrained in shorter scope, Ensure the miniaturization of the system, in order to used in relatively thin mobile lens.
In the exemplary embodiment, multiple subsequent lens may also include between second lens and the image side The 3rd lens.3rd lens can have positive refracting power, and its image side surface is convex surface.In practice, can also to each lens it Between axle on spacing distance be optimized.For example, the spacing distance T12 of the first lens and the second lens on optical axis is saturating with second The spacing distance T23 of mirror and the 3rd lens on optical axis can meet 4<T12/T23<13.5, such as T12 and T23 further can expire Foot 4.314≤T12/T23≤13.338.By rationally arranging spacing distance on the axle between each lens, can ensure to make shooting Senior aberration is reduced while camera lens miniaturization, system sensitivity is reduced, so as to improve image quality.
Effective focal length f3 of effective focal length f2 of the second lens and the 3rd lens can meet -5<f2/f3<- 1.8, such as f2 Further meet -4.505≤f2/f3≤- 2.166 with f3.By effective focal length f2 and the 3rd for reasonably configuring the second lens The parameter of effective focal length f3 of lens, is capable of achieving Radix Rumiciss function.
In the exemplary embodiment, what multiple subsequent lens may also include between the 3rd lens and image side is the 4th saturating Mirror and the 5th lens.4th lens have refracting power, and its thing side can be concave surface.The radius of curvature R 6 of the 3rd lens image side surface with The radius of curvature R 7 of the 4th lens thing side can meet 1.4<R6/R7<2.1, for example, 1.453≤R6/R7≤2.009.By closing The radius of curvature R 7 of the lens thing side of radius of curvature R 6 and the 4th of reason the 3rd lens image side surface of configuration can ensure angle of incidence of light That what is spent is gentle, contributes to update the system overall aberration.In addition, the radius of curvature R 7 for rationally arranging the 4th lens thing side can be passed through Correct with the spherical aberration of 8 pairs of the 4th lens of radius of curvature R of the 4th lens image side surface, so as to ensure the pick-up lenss into Chief ray angle is reduced while as quality.The curvature of the lens image side surface of radius of curvature R 7 and the 4th of the 4th lens thing side half Footpath R8 can meet 0.5<R7/R8<1.3, for example, 0.657≤R7/R8≤1.21.
Additionally, effective focal length f3 of the 3rd lens can meet | f3/f4 | with effective focal length f4 of the 4th lens<0.8, for example F3 and f4 can further meet 0.16≤| f3/f4 |≤0.68.The intersection point of the 3rd lens image side surface and optical axis is to the first lens thing Intersection point on axle between the effective radius summit of side apart from SAG32 and the 4th lens thing side and optical axis is to the first lens thing Can meet 0.5 apart from SAG41 on axle between the effective radius summit of side<SAG32/SAG41<1, for example, 0.615≤ SAG32/SAG41≤0.91。
5th lens have refracting power, and its image side surface can be concave surface.In the application, the thickness of each lens can be carried out excellent Change.For example, center thickness CT5s of center thickness CT3 and fiveth lens of the 3rd lens on optical axis on optical axis can meet 0.8 <CT3/CT5<1.5, for example, 0.926≤CT3/CT5≤1.276.By reasonably configuring center of the 3rd lens on optical axis The center thickness CT5 of thickness CT3 and the 5th lens on optical axis can improve the angle of visual field while miniaturization is ensured, realize Radix Rumiciss Function.
In a particular application, also the maximum field of view angle FOV of the pick-up lenss of the application can be set to FOV>85 °, so as to Effectively increase the visual angle of pick-up lenss by each power of lens dough-making powder type of reasonable distribution, and then ensure the little of camera lens The image quality of camera lens is improved while type.
Can adopt multi-disc eyeglass according to the pick-up lenss of the above-mentioned embodiment of the application, such as mentioned above five. By spacing on each power of lens of reasonable distribution, the axle between face type, each lens etc., regarding for pick-up lenss can be effectively increased Angle, it is ensured that the miniaturization of camera lens simultaneously improves image quality, so that pick-up lenss are more beneficial for production and processing and applicable In portable type electronic product.In presently filed embodiment, at least one of minute surface of each lens is aspherical mirror.It is non- The characteristics of spherical lenss is：It is continually varying from lens centre to periphery curvature.And have certain song from lens centre to periphery The spherical lenss of rate are different, and non-spherical lens has more preferably radius of curvature characteristic, distort aberration with improvement and improve astigmatism The advantage of aberration, enables to the visual field and becomes much larger and true.After using non-spherical lens, can eliminate as much as possible in imaging When the aberration that occurs, 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 composition quantity of camera lens can be changed to obtain each result described below and advantage.For example, although in embodiments It is described by taking five lens as an example, but the pick-up lenss are not limited to include five lens.If desired, the pick-up lenss May also include the lens of other quantity.
Being embodied as the pick-up lenss that are applicable to above-mentioned embodiment is further described referring to Fig. 1 to Figure 16 D Example.
Embodiment 1
The pick-up lenss according to the embodiment of the present application 1 are described referring to Fig. 1 to Fig. 2 D.
As shown in figure 1, pick-up lenss include from thing side to five lens L1-L5 into image side sequential along optical axis. First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；3rd lens L3 With thing side S5 and image side surface S6；4th lens L4 has thing side S7 and image side surface S8；5th lens L5 has thing side S9 and image side surface S10.The pick-up lenss may also include diaphragm (not shown) and for filter infrared light with thing side S11 With the optical filter L6 of image side surface S12.In the pick-up lenss of the present embodiment, it is also provided with aperture STO to reconcile light-inletting quantity.Come Sequentially through each surface S1 to S12 and it is ultimately imaged on imaging surface S13 from the light of object.
Table 1 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the pick-up lenss of embodiment 1 Coefficient.
Table 1
Can be obtained by table 1, the radius of curvature R 7 of the lens L4 things side of radius of curvature R 6 and the 4th of the 3rd lens L3 image side surfaces Meet R6/R7=1.453.The radius of curvature R 8 of the lens L4 image side surfaces of radius of curvature R 7 and the 4th of the 4th lens L4 things side expires Sufficient R7/R8=0.987.
The present embodiment employs 5 lens as an example, by the focal length of reasonable distribution eyeglass and face type, effectively expands The angle of visual field, shortens camera lens total length, it is ensured that the wide angle and miniaturization of camera lens；Simultaneously all kinds of aberrations are corrected, improve camera lens Resolution and image quality.Each aspheric surface face type is limited by below equation：
Wherein, c is aspheric paraxial curvature, the as inverse of the mean curvature radius of upper table 1, and h is any point in aspheric surface Away from the height of primary optical axis, k is circular cone coefficient, and Ai is the correction factor of aspheric surface the i-th-th ranks.Table 2 below is shown in embodiment 1 Can be used for high order term coefficient A of each minute surface S1-S104、A6、A8、A10、A12And A16。
Face number A4 A6 A8 A10 A12 A14 A16
S1 1.8679E-02 1.0056E-01 -4.6215E-01 1.5705E+00 -2.9305E+00 2.9189E+00 -1.2095E+00
S2 1.8814E-02 6.6563E-03 -1.3866E-01 6.3799E-01 -1.6161E+00 1.9588E+00 -1.0522E+00
S3 -2.7524E-01 1.5688E-01 -9.3910E-01 2.4805E+00 -5.0280E+00 5.8854E+00 -2.8720E+00
S4 -1.9156E-01 1.3408E-01 -2.2614E-01 2.8242E-01 -1.9133E-01 8.1759E-02 0.0000E+00
S5 -1.4927E-01 8.7186E-02 1.5979E-01 -1.7638E-01 6.9523E-02 -1.1875E-02 6.8438E-04
S6 -2.2631E-01 1.8548E-01 -1.6092E-01 1.8815E-01 -7.4117E-02 8.3824E-04 2.8112E-03
S7 -1.4250E-01 2.0104E-01 -8.9346E-02 1.8051E-02 -1.8236E-03 8.7803E-05 -1.5970E-06
S8 -2.2391E-01 2.9033E-01 -2.4854E-01 1.5049E-01 -5.3099E-02 9.6306E-03 -7.0188E-04
S9 -1.9025E-01 8.1256E-02 -5.9509E-02 3.3049E-02 -9.1068E-03 1.2035E-03 -6.1979E-05
S10 -8.0745E-02 2.7960E-02 -8.9590E-03 2.1194E-03 -3.4168E-04 3.2329E-05 -1.2967E-06
Table 2
It is shown below go out table 3 be given embodiment 1 each lens effective focal length f1 to f5, total effective Jiao of pick-up lenss Away from the f and total length TTL of pick-up lenss.The maximum field of view angle FOV of pick-up lenss may be configured as FOV=91.293 °.
f1(mm) 4.25 f(mm) 3.35
f2(mm) -6.15 TTL(mm) 4.51
f3(mm) 2.84
f4(mm) 11.33
f5(mm) -4.14
Table 3
According to table 3, effective focal length f2 of the second lens L2 and effective focal length f3 of the 3rd lens L3 meet f2/f3=- 2.166.Effective focal length f3 of the 3rd lens L3 meets | f3/f4 |=0.251 with effective focal length f4 of the 4th lens L4.
In this embodiment, total effective focal length f of pick-up lenss meets f/EPD with the entrance pupil diameter EPD of pick-up lenss =1.949.Total effective focal length f of pick-up lenss meets with half ImgH of the effective pixel area diagonal line length of photo-sensitive cell ImgH/f=1.013.The spacing distance T12 of first lens L1 and the second lens L2 on optical axis and the thing side from the first lens L1 Meet T12/TTL=0.102 apart from TTL on the axle of the imaging surface in face to pick-up lenss.First lens L1 and the second lens L2 exist The spacing distance T23 of spacing distance T12 and the second lens L2 and the 3rd lens L3 on optical axis on optical axis meets T12/T23= 8.242.On axle between the effective radius summit of the intersection point of the 3rd lens L3 image side surfaces and optical axis to the first lens L1 things side Between the effective radius summit of the intersection point to the first lens L1 things side of SAG32 and the 4th lens L4 things side and optical axis Meet SAG32/SAG41=0.615 apart from SAG41 on axle.Center thickness CT3s and fiveth lens of the 3rd lens L3 on optical axis Center thickness CT5s of the L5 on optical axis meets CT3/CT5=1.105.
Fig. 2A shows chromatic curve on the axle of the pick-up lenss of embodiment 1, and it represents the light of different wave length via light Converging focal point after system deviates.Fig. 2 B show the astigmatism curve of the pick-up lenss of embodiment 1, and it represents that meridianal image surface is curved The bending of bent and sagittal image surface.Fig. 2 C show the distortion curve of the pick-up lenss of embodiment 1, and it is represented in the case of different visual angles Distortion sizes values.Fig. 2 D show the ratio chromatism, curve of the pick-up lenss of embodiment 1, and it represents light via optical imagery system The deviation of the different image height after system on imaging surface.Understood according to Fig. 2A to Fig. 2 D, the pick-up lenss given by embodiment 1 Good image quality can be realized.
Embodiment 2
The pick-up lenss according to the embodiment of the present application 2 are described referring to Fig. 3 to Fig. 4 D.In the present embodiment and following reality In applying example, for brevity, by clipped description similar to Example 1.Fig. 3 is shown according to the embodiment of the present application 2 The structural representation of pick-up lenss.
As shown in figure 3, pick-up lenss include from thing side to five lens L1-L5 into image side sequential along optical axis. First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；3rd lens L3 With thing side S5 and image side surface S6；4th lens L4 has thing side S7 and image side surface S8；5th lens L5 has thing side S9 and image side surface S10.The pick-up lenss may also include diaphragm (not shown) and for filter infrared light with thing side S11 With the optical filter L6 of image side surface S12.In the pick-up lenss of the present embodiment, it is also provided with aperture STO to reconcile light-inletting quantity.Come Sequentially through each surface S1 to S12 and it is ultimately imaged on imaging surface S13 from the light of object.
Table 4 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the pick-up lenss of embodiment 2 Coefficient.Table 5 shows the high order term coefficient of each minute surface in embodiment 2.Table 6 shows the effective focal length of each lens of embodiment 2 The total length TTL of f1 to f5, total effective focal length f of optical imaging system and imaging lens system.
Face number Surface type Radius of curvature Thickness Material Circular cone coefficient
OBJ Sphere It is infinite 450.0000
STO Sphere It is infinite -0.1903
S1 Aspheric surface 1.4818 0.4919 1.544/56.11 -0.4322
S2 Aspheric surface 3.9925 0.4684 -14.4888
S3 Aspheric surface -38.1621 0.2170 1.660/20.37 16.8791
S4 Aspheric surface 11.4955 0.1086 50.0000
S5 Aspheric surface -7.1556 0.6865 1.544/56.11 -99.0000
S6 Aspheric surface -1.3544 0.1414 -2.6105
S7 Aspheric surface -0.6935 0.2850 1.660/20.37 -4.3421
S8 Aspheric surface -1.0563 0.0300 -2.6779
S9 Aspheric surface 1.1658 0.7417 1.530/55.80 -7.8808
S10 Aspheric surface 1.0086 0.6045 -4.0192
S11 Sphere It is infinite 0.2100 1.517/64.17
S12 Sphere It is infinite 0.5037
S13 Sphere It is infinite
Table 4
f1(mm) 4.04 f(mm) 3.24
f2(mm) -13.23 TTL(mm) 4.49
f3(mm) 2.94
f4(mm) -4.42
f5(mm) 21.49
Table 6
Fig. 4 A show chromatic curve on the axle of the pick-up lenss of embodiment 2, and it represents the light of different wave length via light Converging focal point after system deviates.Fig. 4 B show the astigmatism curve of the pick-up lenss 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 pick-up lenss of embodiment 2, and it is represented in the case of different visual angles Distortion sizes values.Fig. 4 D show the ratio chromatism, curve of the pick-up lenss of embodiment 2, and it represents light via optical imagery system The deviation of the different image height after system on imaging surface.Understood according to Fig. 4 A to Fig. 4 D, the pick-up lenss given by embodiment 2 Good image quality can be realized.
Embodiment 3
The pick-up lenss according to the embodiment of the present application 3 are described referring to Fig. 5 to Fig. 6 D.Fig. 5 is shown according to this Shen Please embodiment 3 pick-up lenss structural representation.
As shown in figure 5, pick-up lenss include from thing side to five lens L1-L5 into image side sequential along optical axis. First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；3rd lens L3 With thing side S5 and image side surface S6；4th lens L4 has thing side S7 and image side surface S8；5th lens L5 has thing side S9 and image side surface S10.The pick-up lenss may also include diaphragm (not shown) and for filter infrared light with thing side S11 With the optical filter L6 of image side surface S12.In the pick-up lenss of the present embodiment, it is also provided with aperture STO to reconcile light-inletting quantity.Come Sequentially through each surface S1 to S12 and it is ultimately imaged on imaging surface S13 from the light of object.
Table 7 shows surface type, radius of curvature, thickness, material and the circular cone of each lens of the pick-up lenss of embodiment 3 Coefficient.Table 8 shows the high order term coefficient of each minute surface in embodiment 3.Table 9 shows the effective focal length of each lens of embodiment 3 The total length TTL of f1 to f5, total effective focal length f of optical imaging system and imaging lens system.
Table 7
Face number A4 A6 A8 A10 A12 A14 A16
S1 1.7972E-02 1.3497E-01 -7.1096E-01 2.3655E+00 -4.3527E+00 4.1988E+00 -1.6836E+00
S2 2.0397E-02 1.3142E-02 -2.0202E-01 6.2775E-01 -1.3416E+00 1.3688E+00 -6.9304E-01
S3 -2.8342E-01 2.0962E-01 -1.2221E+00 3.4141E+00 -7.1581E+00 8.1191E+00 -3.8346E+00
S4 -2.3774E-01 1.7539E-01 -1.8913E-01 1.7065E-01 -1.4401E-01 7.9981E-02 0.0000E+00
S5 -1.3434E-01 -1.6052E-02 4.2279E-01 -5.7686E-01 3.8302E-01 -1.3104E-01 1.8357E-02
S6 -2.1514E-01 9.9330E-02 1.0286E-01 -1.5880E-01 1.3613E-01 -5.9766E-02 9.7476E-03
S7 -3.4978E-01 8.5966E-01 -9.8956E-01 7.4065E-01 -3.4634E-01 9.1111E-02 -1.0406E-02
S8 -2.3211E-01 5.1193E-01 -5.7500E-01 3.8356E-01 -1.4081E-01 2.6046E-02 -1.8964E-03
S9 1.0375E-01 -2.9732E-01 2.2418E-01 -9.6988E-02 2.6443E-02 -4.0880E-03 2.6393E-04
S10 -2.4466E-02 -1.2267E-02 8.8222E-03 -2.6571E-03 4.2419E-04 -3.5404E-05 1.1973E-06
Table 8
f1(mm) 4.33 f(mm) 3.34
f2(mm) -6.80 TTL(mm) 4.58
f3(mm) 2.70
f4(mm) 3.98
f5(mm) -2.10
Table 9
Fig. 6 A show chromatic curve on the axle of the pick-up lenss of embodiment 3, and it represents the light of different wave length via light Converging focal point after system deviates.Fig. 6 B show the astigmatism curve of the pick-up lenss 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 pick-up lenss of embodiment 3, and it is represented in the case of different visual angles Distortion sizes values.Fig. 6 D show the ratio chromatism, curve of the pick-up lenss of embodiment 3, and it represents light via optical imagery system The deviation of the different image height after system on imaging surface.Understood according to Fig. 6 A to Fig. 6 D, the pick-up lenss given by embodiment 3 Good image quality can be realized.
Embodiment 4
The pick-up lenss according to the embodiment of the present application 4 are described referring to Fig. 7 to Fig. 8 D.Fig. 7 is shown according to this Shen Please embodiment 4 pick-up lenss structural representation.
As shown in fig. 7, pick-up lenss include from thing side to five lens L1-L5 into image side sequential along optical axis. First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；3rd lens L3 With thing side S5 and image side surface S6；4th lens L4 has thing side S7 and image side surface S8；5th lens L5 has thing side S9 and image side surface S10.The pick-up lenss may also include diaphragm (not shown) and for filter infrared light with thing side S11 With the optical filter L6 of image side surface S12.In the pick-up lenss of the present embodiment, it is also provided with aperture STO to reconcile light-inletting quantity.Come Sequentially through each surface S1 to S12 and it is ultimately imaged on imaging surface S13 from the light of object.
Table 10 shows surface type, radius of curvature, thickness, material and the circle of each lens of the pick-up lenss of embodiment 4 Cone coefficient.Table 11 shows the high order term coefficient of each minute surface in embodiment 4.Table 12 shows the effective of each lens of embodiment 4 The total length TTL of focal length f1 to f5, total effective focal length f of optical imaging system and imaging lens system.
Face number Surface type Radius of curvature Thickness Material Circular cone coefficient
OBJ Sphere It is infinite It is infinite
STO Sphere It is infinite -0.0072
S1 Aspheric surface 2.3369 0.4807 1.544/56.11 -4.5739
S2 Aspheric surface -12650.7200 0.4016 99.0000
S3 Aspheric surface -23.1223 0.2668 1.660/20.37 99.0000
S4 Aspheric surface 4.3277 0.0910 -42.9179
S5 Aspheric surface 54.0631 0.7404 1.544/56.11 -99.0000
S6 Aspheric surface -1.2716 0.1815 -2.5289
S7 Aspheric surface -0.6330 0.3295 1.651/21.52 -2.4574
S8 Aspheric surface -0.8656 0.0300 -3.1776
S9 Aspheric surface 0.9955 0.5803 1.530/55.80 -3.0314
S10 Aspheric surface 0.8241 0.6125 -2.4451
S11 Sphere It is infinite 0.2100 1.517/64.17
S12 Sphere It is infinite 0.5902
S13 Sphere It is infinite
Table 10
Table 11
f1(mm) 4.28 f(mm) 2.84
f2(mm) -5.45 TTL(mm) 4.51
f3(mm) 2.29
f4(mm) -8.18
f5(mm) 48.84
Table 12
Fig. 8 A show chromatic curve on the axle of the pick-up lenss of embodiment 4, and it represents the light of different wave length via light Converging focal point after system deviates.Fig. 8 B show the astigmatism curve of the pick-up lenss 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 pick-up lenss of embodiment 4, and it is represented in the case of different visual angles Distortion sizes values.Fig. 8 D show the ratio chromatism, curve of the pick-up lenss of embodiment 4, and it represents light via optical imagery system The deviation of the different image height after system on imaging surface.Understood according to Fig. 8 A to Fig. 8 D, the pick-up lenss given by embodiment 4 Good image quality can be realized.
Embodiment 5
The pick-up lenss according to the embodiment of the present application 5 are described referring to Fig. 9 to Figure 10 D.Fig. 9 is shown according to this Shen Please embodiment 5 pick-up lenss structural representation.
As shown in figure 9, pick-up lenss include from thing side to five lens L1-L5 into image side sequential along optical axis. First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；3rd lens L3 With thing side S5 and image side surface S6；4th lens L4 has thing side S7 and image side surface S8；5th lens L5 has thing side S9 and image side surface S10.The pick-up lenss may also include diaphragm (not shown) and for filter infrared light with thing side S11 With the optical filter L6 of image side surface S12.In the pick-up lenss of the present embodiment, it is also provided with aperture STO to reconcile light-inletting quantity.Come Sequentially through each surface S1 to S12 and it is ultimately imaged on imaging surface S13 from the light of object.
Table 13 shows surface type, radius of curvature, thickness, material and the circle of each lens of the pick-up lenss of embodiment 4 Cone coefficient.Table 14 shows the high order term coefficient of each minute surface in embodiment 4.Table 15 shows the effective of each lens of embodiment 4 The total length TTL of focal length f1 to f5, total effective focal length f of optical imaging system and imaging lens system.
Face number Surface type Radius of curvature Thickness Material Circular cone coefficient
OBJ Sphere It is infinite It is infinite
STO Sphere It is infinite -0.0862
S1 Aspheric surface 1.5248 0.4749 1.544/56.11 -0.4375
S2 Aspheric surface 3.7081 0.4504 -12.2830
S3 Aspheric surface 42963.2300 0.2500 1.660/20.37 -99.0000
S4 Aspheric surface 4.7695 0.0740 -87.0862
S5 Aspheric surface 18.5293 0.7868 1.544/56.11 -99.0000
S6 Aspheric surface -1.4589 0.2673 -2.7825
S7 Aspheric surface -0.9398 0.3572 1.651/21.52 -2.0142
S8 Aspheric surface -0.7796 0.0613 -3.3048
S9 Aspheric surface -16.3859 0.6949 1.530/55.80 78.6220
S10 Aspheric surface 1.1135 0.4756 -7.5147
S11 Sphere It is infinite 0.2100 1.517/64.17
S12 Sphere It is infinite 0.4876
S13 Sphere It is infinite
Table 13
Face number A4 A6 A8 A10 A12 A14 A16
S1 2.5733E-02 6.9157E-02 -4.1017E-01 1.5166E+00 -3.1032E+00 3.2881E+00 -1.4685E+00
S2 1.7143E-02 3.7699E-02 -4.5962E-01 1.2295E+00 -2.0821E+00 1.6040E+00 -5.6432E-01
S3 -3.2485E-01 2.9355E-01 -1.2232E+00 1.7780E+00 -1.5048E+00 -1.9983E-01 8.0027E-01
S4 -2.3163E-01 2.2472E-01 -4.5854E-01 6.1176E-01 -5.0276E-01 2.0566E-01 0.0000E+00
S5 -1.2861E-01 1.7909E-02 3.2781E-01 -4.6388E-01 3.1213E-01 -1.0907E-01 1.5791E-02
S6 -2.0317E-01 5.6980E-02 1.7577E-01 -2.7106E-01 2.4189E-01 -1.0837E-01 1.8104E-02
S7 -3.7277E-01 9.9894E-01 -1.2852E+00 1.0405E+00 -5.0896E-01 1.3720E-01 -1.5859E-02
S8 -2.8181E-01 6.6126E-01 -8.0023E-01 5.6377E-01 -2.1972E-01 4.3948E-02 -3.5426E-03
S9 1.2974E-01 -2.9996E-01 1.9534E-01 -6.7570E-02 1.4269E-02 -1.7584E-03 9.4550E-05
S10 -1.0566E-02 -2.3355E-02 1.3626E-02 -3.9258E-03 6.2946E-04 -5.4021E-05 1.9129E-06
Table 14
f1(mm) 4.41 f(mm) 3.34
f2(mm) -7.16 TTL(mm) 4.59
f3(mm) 2.51
f4(mm) 3.70
f5(mm) -1.92
Table 15
Figure 10 A show chromatic curve on the axle of the pick-up lenss of embodiment 5, and it represents the light of different wave length via light Converging focal point after system deviates.Figure 10 B show the astigmatism curve of the pick-up lenss of embodiment 5, and it represents meridianal image surface Bending and sagittal image surface bending.Figure 10 C show the distortion curve of the pick-up lenss of embodiment 5, and it represents different visual angles situation Under distortion sizes values.Figure 10 D show the ratio chromatism, curve of the pick-up lenss of embodiment 5, and it represents light via optics The deviation of the different image height after imaging system on imaging surface.Understood according to Figure 10 A to Figure 10 D, taking the photograph given by embodiment 5 Good image quality can be realized as camera lens.
Embodiment 6
The pick-up lenss according to the embodiment of the present application 6 are described referring to Figure 11 to Figure 12 D.Figure 11 is shown according to this The structural representation of the pick-up lenss of application embodiment 6.
As shown in figure 11, pick-up lenss include from thing side to five lens L1-L5 into image side sequential along optical axis. First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；3rd lens L3 With thing side S5 and image side surface S6；4th lens L4 has thing side S7 and image side surface S8；5th lens L5 has thing side S9 and image side surface S10.The pick-up lenss may also include diaphragm (not shown) and for filter infrared light with thing side S11 With the optical filter L6 of image side surface S12.In the pick-up lenss of the present embodiment, it is also provided with aperture STO to reconcile light-inletting quantity.Come Sequentially through each surface S1 to S12 and it is ultimately imaged on imaging surface S13 from the light of object.
Table 16 shows surface type, radius of curvature, thickness, material and the circle of each lens of the pick-up lenss of embodiment 6 Cone coefficient.Table 17 shows the high order term coefficient of each minute surface in embodiment 6.Table 18 shows the effective of each lens of embodiment 6 The total length TTL of focal length f1 to f5, total effective focal length f of optical imaging system and imaging lens system.
Table 16
Face number A4 A6 A8 A10 A12 A14 A16
S1 2.4022E-02 8.9762E-02 -4.9355E-01 1.7912E+00 -3.6208E+00 3.8315E+00 -1.7025E+00
S2 2.2207E-02 1.3637E-02 -2.6440E-01 7.7884E-01 -1.5925E+00 1.5576E+00 -7.6372E-01
S3 -2.7789E-01 2.6390E-01 -1.6677E+00 4.9976E+00 -1.0276E+01 1.1195E+01 -5.0199E+00
S4 -1.9320E-01 1.9174E-01 -3.9127E-01 4.9958E-01 -3.7878E-01 1.4695E-01 0.0000E+00
S5 -1.5243E-01 1.2194E-01 -6.8424E-03 1.0447E-01 -1.8599E-01 1.0781E-01 -2.1662E-02
S6 -2.2950E-01 1.8097E-01 -1.9020E-01 2.7035E-01 -1.5702E-01 3.4467E-02 -1.8252E-03
S7 -2.0134E-02 -3.2476E-01 7.6222E-01 -6.6506E-01 2.8864E-01 -6.1253E-02 4.8217E-03
S8 -1.6893E-01 1.2276E-01 -3.4446E-02 1.4362E-02 -6.3201E-03 1.1991E-03 -7.3847E-05
S9 -2.3374E-01 1.1044E-01 -5.9028E-02 2.8723E-02 -8.0646E-03 1.1473E-03 -6.5565E-05
S10 -9.9370E-02 4.2132E-02 -1.3542E-02 2.9697E-03 -4.1863E-04 3.3829E-05 -1.1728E-06
Table 17
f1(mm) 4.49 f(mm) 3.27
f2(mm) -7.40 TTL(mm) 4.56
f3(mm) 2.80
f4(mm) -17.56
f5(mm) -10.84
Table 18
Figure 12 A show chromatic curve on the axle of the pick-up lenss of embodiment 6, and it represents the light of different wave length via light Converging focal point after system deviates.Figure 12 B show the astigmatism curve of the pick-up lenss of embodiment 6, and it represents meridianal image surface Bending and sagittal image surface bending.Figure 12 C show the distortion curve of the pick-up lenss of embodiment 6, and it represents different visual angles situation Under distortion sizes values.Figure 12 D show the ratio chromatism, curve of the pick-up lenss of embodiment 6, and it represents light via optics The deviation of the different image height after imaging system on imaging surface.Understood according to Figure 12 A to Figure 12 D, taking the photograph given by embodiment 6 Good image quality can be realized as camera lens.
Embodiment 7
The pick-up lenss according to the embodiment of the present application 7 are described referring to Figure 13 to Figure 14 D.Figure 13 is shown according to this The structural representation of the pick-up lenss of application embodiment 7.
As shown in figure 13, pick-up lenss include from thing side to five lens L1-L5 into image side sequential along optical axis. First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；3rd lens L3 With thing side S5 and image side surface S6；4th lens L4 has thing side S7 and image side surface S8；5th lens L5 has thing side S9 and image side surface S10.The pick-up lenss may also include diaphragm (not shown) and for filter infrared light with thing side S11 With the optical filter L6 of image side surface S12.In the pick-up lenss of the present embodiment, it is also provided with aperture STO to reconcile light-inletting quantity.Come Sequentially through each surface S1 to S12 and it is ultimately imaged on imaging surface S13 from the light of object.
Table 19 shows surface type, radius of curvature, thickness, material and the circle of each lens of the pick-up lenss of embodiment 7 Cone coefficient.Table 20 shows the high order term coefficient of each minute surface in embodiment 7.Table 21 shows the effective of each lens of embodiment 7 The total length TTL of focal length f1 to f5, total effective focal length f of optical imaging system and imaging lens system.
Face number Surface type Radius of curvature Thickness Material Circular cone coefficient
OBJ Sphere It is infinite It is infinite
STO Sphere It is infinite -0.1293
S1 Aspheric surface 1.4963 0.4552 1.544/56.11 -0.3681
S2 Aspheric surface 4.3079 0.5175 -12.9164
S3 Aspheric surface -3.3744 0.2500 1.660/20.37 -23.3948
S4 Aspheric surface -14.4205 0.0388 -85.8215
S5 Aspheric surface 170.9142 0.7837 1.544/56.11 -99.0000
S6 Aspheric surface -1.5194 0.2018 -1.7978
S7 Aspheric surface -0.7737 0.3244 1.651/21.52 -2.2271
S8 Aspheric surface -0.9887 0.0300 -3.1243
S9 Aspheric surface 1.4274 0.7150 1.530/55.80 -4.8266
S10 Aspheric surface 0.9938 0.5149 -3.3664
S11 Sphere It is infinite 0.2100 1.517/64.17
S12 Sphere It is infinite 0.5269
S13 Sphere It is infinite
Table 19
Table 20
f1(mm) 3.97 f(mm) 3.17
f2(mm) -6.67 TTL(mm) 4.57
f3(mm) 2.76
f4(mm) -13.47
f5(mm) -14.37
Table 21
Figure 14 A show chromatic curve on the axle of the pick-up lenss of embodiment 7, and it represents the light of different wave length via light Converging focal point after system deviates.Figure 14 B show the astigmatism curve of the pick-up lenss of embodiment 7, and it represents meridianal image surface Bending and sagittal image surface bending.Figure 14 C show the distortion curve of the pick-up lenss of embodiment 7, and it represents different visual angles situation Under distortion sizes values.Figure 14 D show the ratio chromatism, curve of the pick-up lenss of embodiment 7, and it represents light via optics The deviation of the different image height after imaging system on imaging surface.Understood according to Figure 14 A to Figure 14 D, taking the photograph given by embodiment 7 Good image quality can be realized as camera lens.
Embodiment 8
The pick-up lenss according to the embodiment of the present application 8 are described referring to Figure 15 to Figure 16 D.Figure 15 is shown according to this The structural representation of the pick-up lenss of application embodiment 8.
As shown in figure 15, pick-up lenss include from thing side to five lens L1-L5 into image side sequential along optical axis. First lens L1 has thing side S1 and image side surface S2；Second lens L2 has thing side S3 and image side surface S4；3rd lens L3 With thing side S5 and image side surface S6；4th lens L4 has thing side S7 and image side surface S8；5th lens L5 has thing side S9 and image side surface S10.The pick-up lenss may also include diaphragm (not shown) and for filter infrared light with thing side S11 With the optical filter L6 of image side surface S12.In the pick-up lenss of the present embodiment, it is also provided with aperture STO to reconcile light-inletting quantity.Come Sequentially through each surface S1 to S12 and it is ultimately imaged on imaging surface S13 from the light of object.
Table 22 shows surface type, radius of curvature, thickness, material and the circle of each lens of the pick-up lenss of embodiment 8 Cone coefficient.Table 23 shows the high order term coefficient of each minute surface in embodiment 8.Table 24 shows the effective of each lens of embodiment 8 The total length TTL of focal length f1 to f5, total effective focal length f of optical imaging system and imaging lens system.
Face number Surface type Radius of curvature Thickness Material Circular cone coefficient
OBJ Sphere It is infinite It is infinite
STO Sphere It is infinite -0.1896
S1 Aspheric surface 1.4934 0.4536 1.544/56.11 -0.2330
S2 Aspheric surface 3.5930 0.4726 -5.3278
S3 Aspheric surface -17.3698 0.2500 1.660/20.37 -62.1257
S4 Aspheric surface 6.1593 0.0705 -91.2075
S5 Aspheric surface 17.0277 0.7434 1.544/56.11 -97.0191
S6 Aspheric surface -1.5902 0.2613 -2.6421
S7 Aspheric surface -0.9871 0.3502 1.651/21.52 -2.1672
S8 Aspheric surface -0.8262 0.1035 -3.2126
S9 Aspheric surface -811.2087 0.7010 1.530/55.80 99.0000
S10 Aspheric surface 1.1636 0.4760 -6.6931
S11 Sphere It is infinite 0.2100 1.517/64.17
S12 Sphere It is infinite 0.4880
S13 Sphere It is infinite
Table 22
Face number A4 A6 A8 A10 A12 A14 A16
S1 1.8299E-02 1.3792E-01 -7.3596E-01 2.4769E+00 -4.6080E+00 4.4909E+00 -1.8190E+00
S2 2.1496E-02 2.6435E-03 -1.3618E-01 3.9512E-01 -8.9273E-01 9.1812E-01 -5.1644E-01
S3 -2.8248E-01 1.9286E-01 -1.1177E+00 3.0941E+00 -6.6395E+00 7.6915E+00 -3.7012E+00
S4 -2.3858E-01 1.7819E-01 -1.9475E-01 1.7866E-01 -1.5132E-01 8.3179E-02 0.0000E+00
S5 -1.3423E-01 -1.6098E-02 4.2235E-01 -5.7612E-01 3.8245E-01 -1.3081E-01 1.8319E-02
S6 -2.1496E-01 9.8919E-02 1.0331E-01 -1.5866E-01 1.3542E-01 -5.9265E-02 9.6401E-03
S7 -3.5047E-01 8.6106E-01 -9.9125E-01 7.4232E-01 -3.4751E-01 9.1567E-02 -1.0479E-02
S8 -2.3192E-01 5.0796E-01 -5.6468E-01 3.7289E-01 -1.3551E-01 2.4775E-02 -1.7778E-03
S9 9.2642E-02 -2.8330E-01 2.1451E-01 -9.3009E-02 2.5407E-02 -3.9288E-03 2.5325E-04
S10 -2.4871E-02 -1.1708E-02 8.5463E-03 -2.5742E-03 4.0895E-04 -3.3882E-05 1.1354E-06
Table 23
f1(mm) 4.35 f(mm) 3.34
f2(mm) -6.79 TTL(mm) 4.58
f3(mm) 2.70
f4(mm) 4.15
f5(mm) -2.16
Table 24
Figure 16 A show chromatic curve on the axle of the pick-up lenss of embodiment 8, and it represents the light of different wave length via light Converging focal point after system deviates.Figure 16 B show the astigmatism curve of the pick-up lenss of embodiment 8, and it represents meridianal image surface Bending and sagittal image surface bending.Figure 16 C show the distortion curve of the pick-up lenss of embodiment 8, and it represents different visual angles situation Under distortion sizes values.Figure 16 D show the ratio chromatism, curve of the pick-up lenss of embodiment 8, and it represents light via optics The deviation of the different image height after imaging system on imaging surface.Understood according to Figure 16 A to Figure 16 D, taking the photograph given by embodiment 8 Good image quality can be realized as camera lens.
To sum up, embodiment 1 to embodiment 8 meets respectively the relation shown in table 25 below.
Conditional/embodiment 1 2 3 4 5 6 7 8
f/EPD 1.949 1.875 1.953 1.989 1.985 1.972 1.934 1.952
ImgH/f 1.013 0.998 0.997 1.000 1.004 1.001 1.002 1.001
R6/R7 1.453 1.953 1.604 2.009 1.552 1.919 1.964 1.611
FOV 91.293 91.293 89.463 89.998 90.031 89.992 90.104 90.005
T12/T23 8.242 4.314 6.682 4.413 6.086 5.655 13.338 6.704
T12/TTL 0.102 0.104 0.103 0.089 0.098 0.101 0.113 0.103
f2/f3 -2.166 -4.505 -2.515 -2.383 -2.849 -2.638 -2.414 -2.514
|f3/f4| 0.251 0.665 0.680 0.279 0.679 0.160 0.205 0.652
R7/R8 0.987 0.657 1.210 0.731 1.205 0.801 0.782 1.195
SAG32/SAG41 0.615 0.910 0.827 0.833 0.814 0.746 0.824 0.881
CT3/CT5 1.105 0.926 1.062 1.276 1.132 1.019 1.096 1.060
Table 25
The application also provides a kind of camera head, and its photo-sensitive cell can be photosensitive coupling element (CCD) or complementary oxygen Change metal semiconductor element (CMOS).Camera head can be the independent picture pick-up device of such as digital camera, or integrated Photographing module on the mobile electronic devices such as mobile phone.The camera head is equipped with pick-up lenss described above.
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 of the particular combination of above-mentioned technical characteristic Scheme, while also should cover in the case of without departing from the inventive concept, is carried out by above-mentioned technical characteristic or its equivalent feature Combination in any and other technical schemes for 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 (13)

1. pick-up lenss, the pick-up lenss along optical axis by thing side to image side sequentially include the first lens and it is multiple it is follow-up thoroughly Mirror, and with total effective focal length f and entrance pupil diameter EPD,
Wherein, the pick-up lenss also include the photo-sensitive cell being arranged on imaging surface,
Characterized in that, first lens have positive refracting power and its thing side is convex surface；And total effective focal length Meet between half ImgH of the effective pixel area diagonal line length of f, the entrance pupil diameter EPD and the photo-sensitive cell：
f/EPD≤2；And
ImgH/f>0.85。
2. pick-up lenss according to claim 1, it is characterised in that the plurality of subsequent lens include：
The second lens with negative refracting power, wherein, the interval of first lens and second lens on the optical axis Meet 0.08 apart from TTL with from the axle of the imaging surface of the thing side to the pick-up lenss of first lens apart from T12< T12/TTL<0.12。
3. pick-up lenss according to claim 2, it is characterised in that the plurality of subsequent lens also include being located at described the The 3rd lens between two lens and the image side,
Wherein, the 3rd lens have positive refracting power, and its image side surface is convex surface；And
Wherein, the spacing distance T12 of first lens and second lens on the optical axis and second lens and Spacing distance T23 of 3rd lens on the optical axis meets 4<T12/T23<13.5.
4. pick-up lenss according to claim 2, it is characterised in that the plurality of subsequent lens also include being located at described the The 4th lens and the 5th lens between three lens and the image side, wherein, the thing side of the 4th lens be concave surface and The image side surface of the 5th lens is concave surface.
5. pick-up lenss according to claim 4, it is characterised in that the friendship of the 3rd lens image side surface and the optical axis Point to the axle between the effective radius summit of the first lens thing side apart from SAG32 and the 4th lens thing side and Meet 0.5 apart from SAG41 on axle between the effective radius summit of the intersection point of the optical axis to the first lens thing side< SAG32/SAG41<1。
6. pick-up lenss according to claim 3, it is characterised in that effective focal length f2 of second lens and described Effective focal length f3 of three lens meets -5<f2/f3<-1.8.
7. pick-up lenss according to claim 4, it is characterised in that effective focal length f3 of the 3rd lens and described Effective focal length f4 of four lens meets | f3/f4 |<0.8.
8. pick-up lenss according to claim 4, it is characterised in that the radius of curvature R 6 of the 3rd lens image side surface with The radius of curvature R 7 of the 4th lens thing side meets 1.4<R6/R7<2.1.
9. pick-up lenss according to claim 4, it is characterised in that the radius of curvature R 7 of the 4th lens thing side with The radius of curvature R 8 of the 4th lens image side surface meets 0.5<R7/R8<1.3.
10. pick-up lenss according to claim 4, it is characterised in that center of the 3rd lens on the optical axis Center thickness CT5s of the thickness CT3 with the 5th lens on the optical axis meets 0.8<CT3/CT5<1.5.
11. pick-up lenss, including the first lens, the second lens, the 3rd lens along optical axis from thing side to image side sequential And multiple subsequent lens,
Characterized in that, the spacing distance T12 of first lens and second lens on the optical axis and described second The spacing distance T23 of lens and the 3rd lens on the optical axis meets 4<T12/T23<13.5.
12. pick-up lenss, it is characterised in that the pick-up lenss are sequentially included by thing side along optical axis to image side：
First lens, with positive refracting power, its thing side is convex surface；
Second lens, with negative refracting power；
3rd lens, with positive refracting power, its image side surface is convex surface；
4th lens, with refracting power, its thing side is concave surface；And
5th lens, with refracting power, its image side surface is concave surface；
Wherein, the spacing distance T12 of first lens and second lens on the optical axis and second lens and Spacing distance T23 of 3rd lens on the optical axis meets 4<T12/T23<13.5.
13. pick-up lenss, including the first lens along optical axis from thing side to image side sequential, the second lens, the 3rd lens, 4th lens and at least one subsequent lens,
Characterized in that, the intersection point of the 3rd lens image side surface and the optical axis is to effectively the half of the first lens thing side Intersection point on axle between the summit of footpath apart from SAG32 and the 4th lens thing side and the optical axis is to the first lens thing Meet 0.5 apart from SAG41 on axle between the effective radius summit of side<SAG32/SAG41<1.
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