CN109358414A - Optical imaging system - Google Patents

Optical imaging system Download PDF

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Publication number
CN109358414A
CN109358414A CN201811580013.5A CN201811580013A CN109358414A CN 109358414 A CN109358414 A CN 109358414A CN 201811580013 A CN201811580013 A CN 201811580013A CN 109358414 A CN109358414 A CN 109358414A
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China
Prior art keywords
lens
imaging system
optical imaging
object side
image side
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Granted
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CN201811580013.5A
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Chinese (zh)
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CN109358414B (en
Inventor
徐武超
戴付建
赵烈烽
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Zhejiang Sunny Optics Co Ltd
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Zhejiang Sunny Optics Co Ltd
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Priority to CN201811580013.5A priority Critical patent/CN109358414B/en
Priority to CN202111481907.0A priority patent/CN114236754B/en
Publication of CN109358414A publication Critical patent/CN109358414A/en
Priority to PCT/CN2019/102148 priority patent/WO2020134129A1/en
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Publication of CN109358414B publication Critical patent/CN109358414B/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

This application discloses a kind of optical imaging system, which sequentially includes: the first lens, the second lens, the third lens, the 4th lens and the 5th lens by object side to image side along optical axis.Wherein, the first lens have positive light coke, and object side is convex surface, and image side surface is concave surface；Second lens have negative power, and the third lens have negative power；4th lens have positive light coke, and image side surface is convex surface；5th lens have negative power, and object side is concave surface.The half ImgH of effective pixel area diagonal line length meets 1 < TTL/ImgH < 1.3 on the object side of first lens to the imaging surface of distance TTL and optical imaging system of the imaging surface on optical axis of optical imaging system.

Description

Optical imaging system
Technical field
This application involves a kind of optical imaging systems, more particularly, to a kind of optical imagery system including five lens System.
Background technique
With the fast development of recent smart phone cause and plate cause, the optical imaging system being applied thereon faces The challenge of high pixel, low cost, ultrathin.And for most of low and middle-end type, consider for cost control, five The lens system of formula is still that it is mainly selected.
In recent years, the high-resolution and lightening, super large work image planes of camera lens are increasingly pursued by major intelligent terminal manufacturer Become the principal element of each manufacturer concern with short system overall length.Super large work image planes mean that higher image resolution can be provided Rate, short system overall length mean that camera lens can be more lightening, however super large work picture is realized while realization reduces cost Face and short system overall length greatly improve the design difficulty of optical system.
Summary of the invention
This application provides be applicable to portable electronic product, can at least solve or part solve it is in the prior art The optical imaging system of at least one above-mentioned disadvantage.
On the one hand, this application provides such a optical imaging systems, and the imaging system is along optical axis by object side to picture Side sequentially includes: the first lens, the second lens, the third lens, the 4th lens and the 5th lens.Wherein, the first lens can have Positive light coke, object side can be convex surface, and image side surface can be concave surface；Second lens can have negative power, and the third lens can have There is negative power；4th lens can have positive light coke, and image side surface can be convex surface；5th lens can have negative power, Object side can be concave surface.Wherein, the object side of the first lens to optical imaging system distance TTL of the imaging surface on optical axis with The half ImgH of effective pixel area diagonal line length can meet 1 < TTL/ImgH < 1.3 on the imaging surface of optical imaging system.
In one embodiment, the combined focal length of the effective focal length f2 of the second lens and the 4th lens and the 5th lens F45 can meet 0 < f2/f45 < 1.6.
In one embodiment, the radius of curvature R 8 of the image side surface of the effective focal length f5 and the 4th lens of the 5th lens can Meet 0.2 < R8/f5 < 1.
In one embodiment, total effective focal length f of optical imaging system and the first lens, the second lens and third are saturating The combined focal length f123 of mirror can meet 0.8 < f123/f < 1.3.
In one embodiment, the curvature of the image side surface of the radius of curvature R 1 and the first lens of the object side of the first lens Radius R2 can meet 0 < R1/R2 < 0.9.
In one embodiment, the effective focal length f1 of the first lens and the effective focal length f2 of the second lens can meet -0.6 < f1/f2 < 0.
In one embodiment, the curvature of the image side surface of the radius of curvature R 9 and the 5th lens of the object side of the 5th lens Radius R10 can meet 0 < | R9+R10 |/| R9-R10 | < 1.
In one embodiment, center thickness CT1 of first lens on optical axis exists with the first lens and the second lens Spacing distance T12 on optical axis can meet 0 < T12/CT1 < 0.3.
In one embodiment, center thickness CT4 and fiveth lens of the 4th lens on optical axis on optical axis in Heart thickness CT5 can meet 0 < CT5/CT4 < 0.7.
In one embodiment, the first lens spacing distance of two lens of arbitrary neighborhood on optical axis into the 5th lens Summation ∑ AT and the summation ∑ CT of the first lens to the 5th lens center thickness on optical axis respectively can meet 0 < ∑ AT/ ∑ CT < 1.
In one embodiment, optical imaging system further includes diaphragm, and the image side surface of diaphragm to the 5th lens is in optical axis On distance SD and the first lens object side to the 5th lens image side surface on axis on optical axis distance TD can meet 0.5 < SD/TD < 1.3.
On the other hand, this application provides such a optical imaging system, the imaging system along optical axis by object side extremely Image side sequentially includes: the first lens, the second lens, the third lens, the 4th lens and the 5th lens.Wherein, the first lens can have There is positive light coke, object side can be convex surface, and image side surface can be concave surface；Second lens can have negative power, and the third lens can With negative power；4th lens can have positive light coke, and image side surface can be convex surface；5th lens can have negative power, Its object side can be concave surface.Wherein, the combination of the effective focal length f2 of the second lens and the 4th lens and the 5th lens Focal length f45 meets 0.36≤f2/f45 < 1.6.
In one embodiment, the radius of curvature R 8 of the image side surface of the effective focal length f5 and the 4th lens of the 5th lens can Meet 0.68≤R8/f5 < 1.
In one embodiment, the curvature of the image side surface of the radius of curvature R 1 and the first lens of the object side of the first lens Radius R2 can meet 0.2 < R1/R2 < 0.9.
The application use five lens, by each power of lens of reasonable distribution, face type, each lens center thickness And spacing etc. on the axis between each lens, so that above-mentioned optical lens system has ultrathin, high resolution, high imaging quality Deng at least one beneficial effect.
Detailed description of the invention
In conjunction with attached drawing, by the detailed description of following non-limiting embodiment, other features of the application, purpose and excellent Point will be apparent.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 1；
Fig. 2A to Fig. 2 D respectively illustrates chromatic curve on the axis of the optical imaging system of embodiment 1, astigmatism curve, distortion Curve and ratio chromatism, curve；
Fig. 3 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 2；
Fig. 4 A to Fig. 4 D respectively illustrates chromatic curve on the axis of the optical imaging system of embodiment 2, astigmatism curve, distortion Curve and ratio chromatism, curve；
Fig. 5 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 3；
Fig. 6 A to Fig. 6 D respectively illustrates chromatic curve on the axis of the optical imaging system of embodiment 3, astigmatism curve, distortion Curve and ratio chromatism, curve；
Fig. 7 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 4；
Fig. 8 A to Fig. 8 D respectively illustrates chromatic curve on the axis of the optical imaging system of embodiment 4, astigmatism curve, distortion Curve and ratio chromatism, curve；
Fig. 9 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 5；
Figure 10 A to Figure 10 D respectively illustrates chromatic curve on the axis of the optical imaging system of embodiment 5, astigmatism curve, abnormal Varied curve and ratio chromatism, curve；
Figure 11 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 6；
Figure 12 A to Figure 12 D respectively illustrates chromatic curve on the axis of the optical imaging system of embodiment 6, astigmatism curve, abnormal Varied curve and ratio chromatism, curve；
Figure 13 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 7；
Figure 14 A to Figure 14 D respectively illustrates chromatic curve on the axis of the optical imaging system of embodiment 7, astigmatism curve, abnormal Varied curve and ratio chromatism, curve；
Figure 15 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 8；
Figure 16 A to Figure 16 D respectively illustrates chromatic curve on the axis of the optical imaging system of embodiment 8, astigmatism curve, abnormal Varied curve and ratio chromatism, curve.
Specific embodiment
Various aspects of the reference attached drawing to the application are made more detailed description by the application in order to better understand.It answers Understand, the only description to the illustrative embodiments of the application is described in detail in these, rather than limits the application in any way Range.In the specification, the identical element of identical reference numbers.Stating "and/or" includes associated institute Any and all combinations of one or more of list of items.
It should be noted that in the present specification, first, second, third, etc. statement is only used for a feature and another spy Sign distinguishes, without indicating any restrictions to feature.Therefore, without departing substantially from teachings of the present application, hereinafter The first lens discussed are also known as the second lens or the third lens.
In the accompanying drawings, for ease of description, thickness, the size and shape of lens are slightly exaggerated.Specifically, attached drawing Shown in spherical surface or aspherical shape be illustrated by way of example.That is, spherical surface or aspherical shape are not limited to attached drawing Shown in spherical surface or aspherical shape.Attached drawing is merely illustrative and and non-critical drawn to scale.
Herein, near axis area refers to the region near optical axis.If lens surface is convex surface and does not define convex surface position When setting, then it represents that the lens surface is convex surface near axis area is less than；If lens surface is concave surface and does not define the concave surface position When, then it represents that the lens surface is concave surface near axis area is less than.Each lens are known as this thoroughly near the surface of subject The object side of mirror, each lens are known as the image side surface of the lens near the surface of imaging surface.
It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory It indicates there is stated feature, element and/or component when using in bright book, but does not preclude the presence or addition of one or more Other feature, component, assembly unit and/or their combination.In addition, ought the statement of such as at least one of " ... " appear in institute When after the list of column feature, entire listed feature is modified, rather than modifies the individual component in list.In addition, when describing this When the embodiment of application, " one or more embodiments of the application " are indicated using "available".Also, term " illustrative " It is intended to refer to example or illustration.
Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein all have with The application one skilled in the art's is generally understood identical meaning.It will also be appreciated that term (such as in everyday words Term defined in allusion quotation) it should be interpreted as having and their consistent meanings of meaning in the context of the relevant technologies, and It will not be explained with idealization or excessively formal sense, unless clear herein so limit.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The feature of the application, principle and other aspects are described in detail below.
Optical imaging system according to the application illustrative embodiments may include such as five lens with focal power, That is, the first lens, the second lens, the third lens, the 4th lens and the 5th lens.This five lens are along optical axis by object side to picture Side sequential.In the first lens into the 5th lens, can have airspace between two lens of arbitrary neighborhood.
In the exemplary embodiment, the first lens can have positive light coke, and object side can be convex surface, and image side surface can be Concave surface；Second lens can have negative power；The third lens can have negative power；4th lens can have positive light coke, Image side surface can be convex surface；5th lens can have negative power, and object side can be concave surface.The face type of each lens of reasonable disposition with Focal power can reduce tolerance sensitivity while guaranteeing Performance of Optical System, optical system is made to have volume production feasibility.
In the exemplary embodiment, the image side surface of the second lens can be concave surface.
In the exemplary embodiment, the image side surface of the 5th lens can be concave surface.
In the exemplary embodiment, 1 < TTL/ImgH < of conditional can be met according to the optical imaging system of the application 1.3, wherein TTL is the object side of the first lens to distance of the imaging surface on optical axis of optical imaging system, and ImgH is optics The half of effective pixel area diagonal line length on the imaging surface of imaging system.More specifically, TTL and ImgH can further meet 1.09≤TTL/ImgH≤1.22.When TTL/ImgH meets above-mentioned condition, can meet simultaneously camera lens high resolution with it is ultra-thin The requirement of change.
In the exemplary embodiment, 0 < f2/f45 < of conditional can be met according to the optical imaging system of the application 1.6, wherein f2 is the effective focal length of the second lens, and f45 is the combined focal length of the 4th lens and the 5th lens.More specifically, f2 0.3 < f2/f45 < 1.5 can further be met with f45, for example, 0.36≤f2/f45≤1.45.When f2/f45 meets above-mentioned item When part, the second lens and the four, the 5th power of lens, the workability of significant increase optical system can be preferably deployed Energy.
In the exemplary embodiment, 0.2 < R8/f5 < 1 of conditional can be met according to the optical imaging system of the application, Wherein, f5 is the effective focal length of the 5th lens, and R8 is the radius of curvature of the image side surface of the 4th lens.More specifically, R8 and f5 into One step can meet 0.5 < R8/f5 < 0.9, for example, 0.62≤R8/f5≤0.83, for another example 0.68≤R8/f5≤0.83.It closes Reason configuration eyeglass face type and focal power, are conducive to correct optical system spherical aberration with axial chromatic aberration, promote image quality.
In the exemplary embodiment, 0.8 < f123/f < of conditional can be met according to the optical imaging system of the application 1.3, wherein f is total effective focal length of optical imaging system, and f123 is the combination of the first lens, the second lens and the third lens Focal length.More specifically, f123 and f can further meet 1.0 < f123/f < 1.2, for example, 1.11≤f123/f≤1.16.It closes Reason configures each power of lens, advantageously ensures that the compactedness of optical system structure.
In the exemplary embodiment, 0 < R1/R2 < 0.9 of conditional can be met according to the optical imaging system of the application, Wherein, R1 is the radius of curvature of the object side of the first lens, and R2 is the radius of curvature of the image side surface of the first lens.More specifically, R1 and R2 can further meet 0.2 < R1/R2 < 0.6, for example, 0.34≤R1/R2≤0.44.Reasonable disposition the first lens object side The radius of curvature in face and image side surface is conducive to correct off-axis aberration, obtains image high-definition.
In the exemplary embodiment, -0.6 < f1/f2 < of conditional can be met according to the optical imaging system of the application 0, wherein f1 is the effective focal length of the first lens, and f2 is the effective focal length of the second lens.More specifically, f1 and f2 further may be used Meet -0.29≤f1/f2≤- 0.08.The first lens of reasonable disposition and the second lens strength are conducive to color difference elimination, simultaneously Help to ensure that optical system structure compactedness.
In the exemplary embodiment, 0 < of conditional can be met according to the optical imaging system of the application | R9+R10 |/| R9-R10 | < 1, wherein R9 is the radius of curvature of the object side of the 5th lens, and R10 is the curvature half of the image side surface of the 5th lens Diameter.More specifically, R9 and R10 can further meet 0.04≤| R9+R10 |/| R9-R10 |≤0.61.Meet the conditional, has Conducive to ensure camera lens CRA matching, and be conducive to correct camera lens the curvature of field, guarantee the imaging definition of each visual field.
In the exemplary embodiment, 0 < T12/CT1 < of conditional can be met according to the optical imaging system of the application 0.3, wherein CT1 is center thickness of first lens on optical axis, T12 be the first lens and the second lens on optical axis between Gauge from.More specifically, T12 and CT1 can further meet 0.1 < T12/CT1 < 0.2, for example, 0.16≤T12/CT1≤ 0.19.Meet the conditional, the thickness and interval sensibility of camera lens can be effectively reduced, meet the requirement of machinability.Meanwhile Spacing distance on axis by configuring lens, is advantageously implemented the structural compactness of optical system.
In the exemplary embodiment, 0 < CT5/CT4 < of conditional can be met according to the optical imaging system of the application 0.7, wherein CT4 is center thickness of the 4th lens on optical axis, and CT5 is center thickness of the 5th lens on optical axis.More Body, CT5 and CT4 can further meet 0.2 < CT5/CT4 < 0.6, for example, 0.38≤CT5/CT4≤0.53.Reasonable disposition The center thickness of lens, can be effectively reduced the center thickness sensibility of camera lens, and be conducive to correct the curvature of field.
In the exemplary embodiment, 0 < ∑ AT/ ∑ CT < of conditional can be met according to the optical imaging system of the application 1, wherein ∑ AT is the summation of the first lens spacing distance of two lens of arbitrary neighborhood on optical axis into the 5th lens, ∑ CT For the summation of the first lens to the 5th lens center thickness on optical axis respectively.More specifically, ∑ AT and ∑ CT further may be used Meet 0.3 < ∑ AT/ ∑ CT < 0.7, for example, 0.42≤∑ AT/ ∑ CT≤0.54.The center thickness of each lens of reasonable disposition and Spacing distance on axis advantageously ensures that optical system structure compactedness, meets ultrathin requirement.
In the exemplary embodiment, diaphragm may also include according to the optical imaging system of the application, diaphragm may be provided at Between object side and the first lens.Optionally, diaphragm to the 5th lens distance SD and first lens of the image side surface on optical axis Object side to the 5th lens image side surface on axis on optical axis distance TD can meet 0.5 < SD/TD < 1.3.More specifically, SD 0.92≤SD/TD≤0.93 can further be met with TD.Reasonable disposition stop position, it is advantageous to guarantee that optical system structure is compact Property, and be conducive to the imaging performance and relative luminance of improving optical system.
Optionally, above-mentioned optical imaging system may also include optical filter for correcting color error ratio and/or for protecting The protection glass of photosensitive element on imaging surface.
Multi-disc eyeglass, such as described above five can be used according to the optical imaging system of the above embodiment of the application Piece.By each power of lens of reasonable distribution, face type, each lens center thickness and each lens between axis on spacing Deng the volume that can effectively reduce camera lens, the machinability for reducing the susceptibility of camera lens and improving camera lens, so that optical imagery system System, which is more advantageous to, to be produced and processed and is applicable to portable electronic product.Optical imaging system through the above configuration can also have There are the beneficial effects such as ultra-thin, high resolution, low cost, high imaging quality, mobile lens in major part can be better meet Use demand.
In presently filed embodiment, at least one of mirror surface of each lens is aspherical mirror, that is, first thoroughly Mirror, the second lens, the third lens, the 4th lens and each lens in the 5th lens object side and image side surface at least one A is aspherical mirror.The characteristics of non-spherical lens is: from lens centre to lens perimeter, curvature is consecutive variations.With from Lens centre has the spherical lens of constant curvature different to lens perimeter, and non-spherical lens has more preferably radius of curvature special Property, have the advantages that improve and distorts aberration and improvement astigmatic image error.After non-spherical lens, can eliminate as much as possible at As when the aberration that occurs, so as to improve image quality.Optionally, the first lens, the second lens, the third lens, the 4th thoroughly The object side and image side surface of mirror and each lens in the 5th lens are aspherical mirror.
However, it will be understood by those of skill in the art that without departing from this application claims technical solution the case where Under, the lens numbers for constituting optical imaging lens can be changed, to obtain each result and advantage described in this specification.Example Such as, although being described by taking five lens as an example in embodiments, which is not limited to include five Lens.If desired, the optical imaging lens may also include the lens of other quantity.
The specific embodiment for being applicable to the optical imaging system of above embodiment is further described with reference to the accompanying drawings.
Embodiment 1
Referring to Fig. 1 to Fig. 2 D description according to the optical imaging system of the embodiment of the present application 1.Fig. 1 is shown according to this Apply for the structural schematic diagram of the optical imaging system of embodiment 1.
As shown in Figure 1, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence includes: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Concave surface, image side surface S6 are concave surface.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.The Five lens E5 have negative power, and object side S9 is concave surface, and image side surface S10 is concave surface.Optical filter E6 have object side S11 and Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 1 show the surface types of each lens of the optical imaging system of embodiment 1, radius of curvature, thickness, material and Circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 1
As shown in Table 1, the object side of any one lens of the first lens E1 into the 5th lens E5 and image side surface are It is aspherical.In the present embodiment, the face type x of each non-spherical lens is available but is not limited to following aspherical formula and is defined:
Wherein, x be it is aspherical along optical axis direction when being highly the position of h, away from aspheric vertex of surface apart from rise；C is Aspherical paraxial curvature, c=1/R (that is, inverse that paraxial curvature c is upper 1 mean curvature radius R of table)；K is circular cone coefficient；Ai It is the correction factor of aspherical i-th-th rank.The following table 2 gives the high order that can be used for each aspherical mirror S1-S10 in embodiment 1 Term coefficient A4、A6、A8、A10、A12、A14、A16、A18And A20。
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.6417E-02 -4.2448E-01 5.4373E+00 -4.0933E+01 1.9347E+02 -5.7226E+02 1.0274E+03 -1.0255E+03 4.3441E+02
S2 -2.6106E-02 -6.4863E-01 1.3834E+01 -1.7015E+02 1.1730E+03 -4.8565E+03 1.2070E+04 -1.6696E+04 9.9010E+03
S3 -1.2721E-01 4.1145E-01 -1.2113E+00 -2.4959E+00 1.1128E+02 -7.7726E+02 2.6556E+03 -4.7042E+03 3.4472E+03
S4 -2.0337E-02 9.2030E-01 -1.4114E+01 2.2102E+02 -1.9350E+03 1.0043E+04 -3.0460E+04 4.9857E+04 -3.3980E+04
S5 -3.7477E-01 -4.4904E-02 8.4359E+00 -1.0046E+02 5.9999E+02 -2.0798E+03 4.2033E+03 -4.5762E+03 2.0467E+03
S6 -2.8816E-01 4.1329E-01 -1.7663E+00 6.1631E+00 -1.4469E+01 2.2928E+01 -2.2423E+01 1.1836E+01 -2.5586E+00
S7 -1.1311E-01 6.8982E-02 -6.1892E-02 -1.2649E-01 2.7871E-01 -2.0485E-01 7.3907E-02 -1.3332E-02 9.6481E-04
S8 -1.4814E-01 -1.0524E-01 4.5715E-01 -3.3229E-01 6.4683E-02 2.7192E-02 -1.6609E-02 3.2463E-03 -2.2943E-04
S9 -5.1260E-01 3.2811E-01 3.2926E-01 -5.0198E-01 2.8135E-01 -8.6623E-02 1.5479E-02 -1.5094E-03 6.2270E-05
S10 -4.3265E-01 5.6769E-01 -5.0154E-01 3.0244E-01 -1.2394E-01 3.3304E-02 -5.5490E-03 5.1687E-04 -2.0516E-05
Table 2
Table 3 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S13 in embodiment 1 Distance TTL of the object side S1 to imaging surface S13 of E1 on optical axis, maximum angle of half field-of view HFOV, optical imaging system aperture Number Fno, total effective focal length f of optical imaging system and the effective focal length f1 to f5 of each lens.
ImgH(mm) 3.04 f1(mm) 2.68
TTL(mm) 3.50 f2(mm) -15.71
HFOV(°) 44.25 f3(mm) -22.36
Fno 2.24 f4(mm) 1.95
f(mm) 3.02 f5(mm) -1.49
Table 3
Optical imaging system in embodiment 1 meets following relationship:
TTL/ImgH=1.15, wherein TTL be the first lens E1 object side S1 to imaging surface S13 on optical axis away from From ImgH is the half of effective pixel area diagonal line length on imaging surface S13；
F2/f45=0.90, wherein f2 is the effective focal length of the second lens E2, and f45 is the 4th lens E4 and the 5th lens The combined focal length of E5；
R8/f5=0.75, wherein f5 is the effective focal length of the 5th lens E5, and R8 is the image side surface S8's of the 4th lens E4 Radius of curvature；
F123/f=1.11, wherein f be optical imaging system total effective focal length, f123 be the first lens E1, second thoroughly The combined focal length of mirror E2 and the third lens E3；
R1/R2=0.38, wherein R1 is the radius of curvature of the object side S1 of the first lens E1, and R2 is the first lens E1's The radius of curvature of image side surface S2；
F1/f2=-0.17, wherein f1 is the effective focal length of the first lens E1, and f2 is the effective focal length of the second lens E2；
| R9+R10 |/| R9-R10 |=0.10, wherein R9 is the radius of curvature of the object side S9 of the 5th lens E5, and R10 is The radius of curvature of the image side surface S10 of 5th lens E5；
T12/CT1=0.16, wherein CT1 is center thickness of the first lens E1 on optical axis, and T12 is the first lens E1 With spacing distance of the second lens E2 on optical axis；
CT5/CT4=0.44, wherein CT4 is center thickness of the 4th lens E4 on optical axis, and CT5 is the 5th lens E5 Center thickness on optical axis；
∑ AT/ ∑ CT=0.45, wherein ∑ AT be the first lens E1 into the 5th lens E5 two lens of arbitrary neighborhood in light The summation of spacing distance on axis, ∑ CT are the total of the first lens E1 to the 5th lens E5 center thickness on optical axis respectively With；
SD/TD=0.93, wherein SD is distance of the image side surface S10 of diaphragm STO to the 5th lens E5 on optical axis, TD For image side surface S10 distance on axis on optical axis of the object side S1 to the 5th lens E5 of the first lens E1.
Fig. 2A shows chromatic curve on the axis of the optical imaging system of embodiment 1, indicates the light warp of different wave length Deviateed by the converging focal point after camera lens.Fig. 2 B shows the astigmatism curve of the optical imaging system of embodiment 1, indicates meridian picture Face bending and sagittal image surface bending.Fig. 2 C shows the distortion curve of the optical imaging system of embodiment 1, indicates different image heights The distortion sizes values at place.Fig. 2 D shows the ratio chromatism, curve of the optical imaging system of embodiment 1, indicates light via mirror The deviation of different image heights after head on imaging surface.A to Fig. 2 D is it is found that optical imagery system given by embodiment 1 according to fig. 2 System can be realized good image quality.
Embodiment 2
Referring to Fig. 3 to Fig. 4 D description according to the optical imaging system of the embodiment of the present application 2.In the present embodiment and following In embodiment, for brevity, by clipped description similar to Example 1.Fig. 3 is shown according to the embodiment of the present application 2 Optical imaging system structural schematic diagram.
As shown in figure 3, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence includes: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.The Five lens E5 have negative power, and object side S9 is concave surface, and image side surface S10 is concave surface.Optical filter E6 have object side S11 and Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 4 show the surface types of each lens of the optical imaging system of embodiment 2, radius of curvature, thickness, material and Circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 4
As shown in Table 4, in example 2, the object side of any one lens of the first lens E1 into the 5th lens E5 It is aspherical with image side surface.Table 5 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 2, wherein each non- Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -1.2038E-04 5.2212E-01 -8.9308E+00 8.4319E+01 -4.6651E+02 1.5609E+03 -3.1104E+03 3.3969E+03 -1.5698E+03
S2 -5.1097E-02 -6.3632E-02 -1.0458E+00 -5.5066E-01 6.4401E+01 -4.4936E+02 1.4661E+03 -2.4450E+03 1.6605E+03
S3 -1.7108E-01 6.2333E-01 -5.3046E+00 4.3394E+01 -1.8948E+02 4.8715E+02 -7.2958E+02 5.2537E+02 -8.1135E+01
S4 -8.3414E-02 1.1573E+00 -1.0226E+01 1.1186E+02 -7.9192E+02 3.7374E+03 -1.0995E+04 1.8010E+04 -1.2450E+04
S5 -4.7060E-01 1.6408E+00 -1.5642E+01 9.5064E+01 -3.6082E+02 8.4136E+02 -1.1514E+03 8.2242E+02 -2.3007E+02
S6 -3.4835E-01 8.1819E-01 -4.3695E+00 1.6494E+01 -3.9844E+01 6.1535E+01 -5.7794E+01 2.9744E+01 -6.4083E+00
S7 -8.9332E-02 1.2727E-02 6.6457E-02 -2.9777E-01 3.9570E-01 -2.4538E-01 7.9977E-02 -1.3354E-02 9.0481E-04
S8 8.3555E-02 -7.2162E-01 1.4621E+00 -1.3530E+00 7.2766E-01 -2.4797E-01 5.3714E-02 -6.8009E-03 3.8287E-04
S9 -3.0508E-01 -2.5433E-01 1.0561E+00 -1.0120E+00 4.9872E-01 -1.4433E-01 2.4853E-02 -2.3673E-03 9.6321E-05
S10 -2.5480E-01 2.8651E-01 -2.4107E-01 1.4443E-01 -5.9581E-02 1.5849E-02 -2.5400E-03 2.2137E-04 -8.0400E-06
Table 5
Table 6 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S13 in embodiment 2 Distance TTL of the object side S1 to imaging surface S13 of E1 on optical axis, maximum angle of half field-of view HFOV, optical imaging system aperture Number Fno, total effective focal length f of optical imaging system and the effective focal length f1 to f5 of each lens.
ImgH(mm) 3.04 f1(mm) 2.76
TTL(mm) 3.50 f2(mm) -21.42
HFOV(°) 44.68 f3(mm) -18.16
Fno 2.24 f4(mm) 1.54
f(mm) 3.03 f5(mm) -1.22
Table 6
Fig. 4 A shows chromatic curve on the axis of the optical imaging system of embodiment 2, indicates the light warp of different wave length Deviateed by the converging focal point after camera lens.Fig. 4 B shows the astigmatism curve of the optical imaging system of embodiment 2, indicates meridian picture Face bending and sagittal image surface bending.Fig. 4 C shows the distortion curve of the optical imaging system of embodiment 2, indicates different image heights The distortion sizes values at place.Fig. 4 D shows the ratio chromatism, curve of the optical imaging system of embodiment 2, indicates light via mirror The deviation of different image heights after head on imaging surface.According to Fig. 4 A to Fig. 4 D it is found that optical imagery system given by embodiment 2 System can be realized good image quality.
Embodiment 3
The optical imaging system according to the embodiment of the present application 3 is described referring to Fig. 5 to Fig. 6 D.Fig. 5 shows basis The structural schematic diagram of the optical imaging system of the embodiment of the present application 3.
As shown in figure 5, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence includes: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Concave surface, image side surface S6 are concave surface.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.The Five lens E5 have negative power, and object side S9 is concave surface, and image side surface S10 is concave surface.Optical filter E6 have object side S11 and Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 7 show the surface types of each lens of the optical imaging system of embodiment 3, radius of curvature, thickness, material and Circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 7
As shown in Table 7, in embodiment 3, the object side of any one lens of the first lens E1 into the 5th lens E5 It is aspherical with image side surface.Table 8 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 3, wherein each non- Spherical surface type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.5429E-02 -1.9429E-01 -5.6130E-01 2.4432E+01 -1.9949E+02 8.1858E+02 -1.8637E+03 2.2436E+03 -1.1201E+03
S2 -5.4552E-02 4.3075E-01 -1.0875E+01 1.1125E+02 -7.0210E+02 2.7514E+03 -6.4714E+03 8.3191E+03 -4.5089E+03
S3 -1.6595E-01 1.1453E+00 -1.6926E+01 1.7185E+02 -1.0462E+03 4.0222E+03 -9.5061E+03 1.2553E+04 -7.0970E+03
S4 -4.9807E-02 7.9899E-01 -8.1259E+00 1.1770E+02 -1.0097E+03 5.3650E+03 -1.6834E+04 2.8489E+04 -2.0025E+04
S5 -5.1036E-01 3.2425E+00 -3.7640E+01 2.6571E+02 -1.1718E+03 3.2265E+03 -5.3806E+03 4.9684E+03 -1.9587E+03
S6 -3.5364E-01 1.1290E+00 -6.9066E+00 2.7649E+01 -6.9722E+01 1.1030E+02 -1.0467E+02 5.4031E+01 -1.1633E+01
S7 -1.0262E-01 3.2633E-02 7.9226E-02 -3.3786E-01 4.2718E-01 -2.5703E-01 8.1921E-02 -1.3411E-02 8.9136E-04
S8 3.6331E-02 -5.6920E-01 1.2684E+00 -1.2438E+00 7.0988E-01 -2.5693E-01 5.8662E-02 -7.7227E-03 4.4568E-04
S9 -3.8759E-01 1.3496E-01 4.1720E-01 -4.8505E-01 2.4872E-01 -7.2820E-02 1.2648E-02 -1.2210E-03 5.0724E-05
S10 -2.5757E-01 3.0614E-01 -2.5273E-01 1.3860E-01 -4.9941E-02 1.1123E-02 -1.3992E-03 8.4081E-05 -1.4688E-06
Table 8
Table 9 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S13 in embodiment 3 Distance TTL of the object side S1 to imaging surface S13 of E1 on optical axis, maximum angle of half field-of view HFOV, optical imaging system aperture Number Fno, total effective focal length f of optical imaging system and the effective focal length f1 to f5 of each lens.
ImgH(mm) 3.04 f1(mm) 2.82
TTL(mm) 3.52 f2(mm) -26.40
HFOV(°) 44.78 f3(mm) -20.01
Fno 2.23 f4(mm) 1.63
f(mm) 3.03 f5(mm) -1.29
Table 9
Fig. 6 A shows chromatic curve on the axis of the optical imaging system of embodiment 3, indicates the light warp of different wave length Deviateed by the converging focal point after camera lens.Fig. 6 B shows the astigmatism curve of the optical imaging system of embodiment 3, indicates meridian picture Face bending and sagittal image surface bending.Fig. 6 C shows the distortion curve of the optical imaging system of embodiment 3, indicates different image heights The distortion sizes values at place.Fig. 6 D shows the ratio chromatism, curve of the optical imaging system of embodiment 3, indicates light via mirror The deviation of different image heights after head on imaging surface.According to Fig. 6 A to Fig. 6 D it is found that optical imagery system given by embodiment 3 System can be realized good image quality.
Embodiment 4
The optical imaging system according to the embodiment of the present application 4 is described referring to Fig. 7 to Fig. 8 D.Fig. 7 shows basis The structural schematic diagram of the optical imaging system of the embodiment of the present application 4.
As shown in fig. 7, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence includes: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.The Five lens E5 have negative power, and object side S9 is concave surface, and image side surface S10 is concave surface.Optical filter E6 have object side S11 and Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 10 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 4 And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 10
As shown in Table 10, in example 4, the object side of any one lens of the first lens E1 into the 5th lens E5 It is aspherical with image side surface.Table 11 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 4, wherein each Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 3.4218E-02 -1.9701E-01 3.4808E-01 9.0128E+00 -8.6350E+01 3.6143E+02 -8.1396E+02 9.5708E+02 -4.6681E+02
S2 1.8653E-02 -1.7557E+00 2.5714E+01 -2.4128E+02 1.3802E+03 -4.9087E+03 1.0632E+04 -1.2926E+04 6.7832E+03
S3 -1.3022E-01 7.0756E-01 -1.5442E+01 2.0775E+02 -1.5085E+03 6.4914E+03 -1.6432E+04 2.2518E+04 -1.2874E+04
S4 -1.1873E-01 2.7956E+00 -3.9636E+01 4.0336E+02 -2.5318E+03 1.0050E+04 -2.4434E+04 3.3201E+04 -1.9341E+04
S5 -6.0835E-01 3.3346E+00 -3.0846E+01 1.7018E+02 -5.6479E+02 1.1036E+03 -1.1761E+03 5.3952E+02 -2.1188E+01
S6 -2.5486E-01 -8.9763E-01 1.0785E+01 -5.3220E+01 1.4310E+02 -2.2526E+02 2.0789E+02 -1.0426E+02 2.1930E+01
S7 -7.4157E-02 -1.5446E-02 2.0711E-01 -6.3372E-01 7.8661E-01 -4.9229E-01 1.6670E-01 -2.9296E-02 2.1022E-03
S8 -3.4667E-02 -4.1614E-01 1.0108E+00 -9.3570E-01 4.8462E-01 -1.5772E-01 3.2687E-02 -3.9830E-03 2.1755E-04
S9 -5.2069E-01 4.1677E-01 1.3049E-01 -2.9854E-01 1.6849E-01 -5.1028E-02 9.1580E-03 -9.2816E-04 4.1195E-05
S10 -2.5834E-01 2.2304E-01 -1.0071E-01 1.3157E-02 8.6698E-03 -5.4026E-03 1.3908E-03 -1.7584E-04 8.8143E-06
Table 11
Table 12 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S13 in embodiment 4 Distance TTL of the object side S1 to imaging surface S13 of E1 on optical axis, maximum angle of half field-of view HFOV, optical imaging system aperture Number Fno, total effective focal length f of optical imaging system and the effective focal length f1 to f5 of each lens.
ImgH(mm) 3.04 f1(mm) 2.89
TTL(mm) 3.55 f2(mm) -35.70
HFOV(°) 44.50 f3(mm) -12.83
Fno 2.25 f4(mm) 1.47
f(mm) 3.05 f5(mm) -1.23
Table 12
Fig. 8 A shows chromatic curve on the axis of the optical imaging system of embodiment 4, indicates the light warp of different wave length Deviateed by the converging focal point after camera lens.Fig. 8 B shows the astigmatism curve of the optical imaging system of embodiment 4, indicates meridian picture Face bending and sagittal image surface bending.Fig. 8 C shows the distortion curve of the optical imaging system of embodiment 4, indicates different image heights The distortion sizes values at place.Fig. 8 D shows the ratio chromatism, curve of the optical imaging system of embodiment 4, indicates light via mirror The deviation of different image heights after head on imaging surface.According to Fig. 8 A to Fig. 8 D it is found that optical imagery system given by embodiment 4 System can be realized good image quality.
Embodiment 5
The optical imaging system according to the embodiment of the present application 5 is described referring to Fig. 9 to Figure 10 D.Fig. 9 shows basis The structural schematic diagram of the optical imaging system of the embodiment of the present application 5.
As shown in figure 9, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence includes: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has Negative power, object side S3 are concave surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.4th lens E4 has positive light coke, and object side S7 is concave surface, and image side surface S8 is convex surface.The Five lens E5 have negative power, and object side S9 is concave surface, and image side surface S10 is concave surface.Optical filter E6 have object side S11 and Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 13 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 5 And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 13
As shown in Table 13, in embodiment 5, the object side of any one lens of the first lens E1 into the 5th lens E5 It is aspherical with image side surface.Table 14 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 5, wherein each Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -2.5136E-02 9.2025E-01 -1.0865E+01 7.9443E+01 -3.6270E+02 1.0404E+03 -1.8197E+03 1.7712E+03 -7.3804E+02
S2 1.2459E-02 -8.0508E-01 1.2761E+01 -1.4550E+02 1.0148E+03 -4.3082E+03 1.0809E+04 -1.4789E+04 8.5072E+03
S3 -1.3474E-01 4.9740E-01 -8.4340E-01 -6.0702E+00 1.3253E+02 -8.6063E+02 2.6623E+03 -4.1067E+03 2.5500E+03
S4 -3.1771E-02 1.5785E-01 6.9904E+00 -6.5742E+01 3.9607E+02 -1.5004E+03 3.4337E+03 -4.3372E+03 2.3437E+03
S5 -3.1022E-01 -6.0784E-01 1.1803E+01 -1.0687E+02 5.7267E+02 -1.8860E+03 3.7408E+03 -4.0953E+03 1.8937E+03
S6 -1.7855E-01 -7.6469E-02 3.1503E-01 -1.2217E+00 3.6791E+00 -8.2406E+00 1.2769E+01 -1.1039E+01 3.8717E+00
S7 -6.5130E-03 -3.8095E-01 1.5470E+00 -4.5416E+00 8.4813E+00 -9.8888E+00 6.8109E+00 -2.4950E+00 3.7267E-01
S8 1.4533E-01 -4.5664E-01 9.3228E-01 -1.3254E+00 1.5285E+00 -1.2165E+00 5.8194E-01 -1.4957E-01 1.5932E-02
S9 -3.8785E-01 2.0530E-01 1.6447E-01 -2.2268E-01 1.1088E-01 -3.0588E-02 4.9357E-03 -4.3764E-04 1.6512E-05
S10 -3.0813E-01 3.0920E-01 -2.2457E-01 1.1680E-01 -4.2875E-02 1.0617E-02 -1.6664E-03 1.4908E-04 -5.7857E-06
Table 14
Table 15 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S13 in embodiment 5 Distance TTL of the object side S1 to imaging surface S13 of E1 on optical axis, maximum angle of half field-of view HFOV, optical imaging system aperture Number Fno, total effective focal length f of optical imaging system and the effective focal length f1 to f5 of each lens.
ImgH(mm) 3.04 f1(mm) 2.70
TTL(mm) 3.53 f2(mm) -9.17
HFOV(°) 44.22 f3(mm) -2535.95
Fno 2.24 f4(mm) 2.35
f(mm) 3.02 f5(mm) -1.81
Table 15
Figure 10 A shows chromatic curve on the axis of the optical imaging system of embodiment 5, indicates the light warp of different wave length Deviateed by the converging focal point after camera lens.Figure 10 B shows the astigmatism curve of the optical imaging system of embodiment 5, indicates meridian Curvature of the image and sagittal image surface bending.Figure 10 C shows the distortion curve of the optical imaging system of embodiment 5, indicates different Distortion sizes values at image height.Figure 10 D shows the ratio chromatism, curve of the optical imaging system of embodiment 5, indicates light Via the deviation of the different image heights after camera lens on imaging surface.According to Figure 10 A to Figure 10 D it is found that light given by embodiment 5 Learning imaging system can be realized good image quality.
Embodiment 6
The optical imaging system according to the embodiment of the present application 6 is described referring to Figure 11 to Figure 12 D.Figure 11 shows root According to the structural schematic diagram of the optical imaging system of the embodiment of the present application 6.
As shown in figure 11, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence includes: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Concave surface, image side surface S6 are convex surface.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.The Five lens E5 have negative power, and object side S9 is concave surface, and image side surface S10 is concave surface.Optical filter E6 have object side S11 and Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 16 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 6 And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 16
As shown in Table 16, in embodiment 6, the object side of any one lens of the first lens E1 into the 5th lens E5 It is aspherical with image side surface.Table 17 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 6, wherein each Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -6.5494E-03 4.7409E-01 -5.1959E+00 3.5434E+01 -1.4981E+02 3.9471E+02 -6.2761E+02 5.4752E+02 -2.0189E+02
S2 -1.9796E-02 -6.8398E-01 9.8025E+00 -1.0370E+02 6.6523E+02 -2.6217E+03 6.2051E+03 -8.1154E+03 4.5056E+03
S3 -1.0210E-01 -1.5292E-01 7.3709E+00 -8.1327E+01 5.4637E+02 -2.2152E+03 5.3065E+03 -6.9476E+03 3.8422E+03
S4 -1.5213E-02 8.7474E-01 -9.2931E+00 1.1289E+02 -7.9091E+02 3.4069E+03 -8.8137E+03 1.2560E+04 -7.5388E+03
S5 -3.5990E-01 4.8104E-01 -3.2830E+00 1.7947E+01 -8.5142E+01 3.0127E+02 -6.9216E+02 9.0498E+02 -5.2329E+02
S6 -2.7579E-01 3.6278E-01 -1.3129E+00 4.2665E+00 -1.0373E+01 1.8191E+01 -1.9618E+01 1.1180E+01 -2.5717E+00
S7 -1.1918E-01 7.1256E-02 -6.3346E-02 -1.0401E-01 2.4785E-01 -1.8714E-01 6.8734E-02 -1.2570E-02 9.1957E-04
S8 -1.3609E-01 -5.0723E-02 2.6125E-01 -9.0880E-02 -9.4192E-02 8.9045E-02 -3.0884E-02 5.0482E-03 -3.2495E-04
S9 -4.7480E-01 2.9220E-01 2.9448E-01 -4.3238E-01 2.3459E-01 -6.9848E-02 1.2059E-02 -1.1361E-03 4.5322E-05
S10 -3.5360E-01 4.1898E-01 -3.3436E-01 1.8250E-01 -6.8074E-02 1.6682E-02 -2.5274E-03 2.1295E-04 -7.6023E-06
Table 17
Table 18 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S13 in embodiment 6 Distance TTL of the object side S1 to imaging surface S13 of E1 on optical axis, maximum angle of half field-of view HFOV, optical imaging system aperture Number Fno, total effective focal length f of optical imaging system and the effective focal length f1 to f5 of each lens.
ImgH(mm) 3.04 f1(mm) 2.63
TTL(mm) 3.60 f2(mm) -13.00
HFOV(°) 43.49 f3(mm) -20.40
Fno 2.24 f4(mm) 2.06
f(mm) 3.11 f5(mm) -1.59
Table 18
Figure 12 A shows chromatic curve on the axis of the optical imaging system of embodiment 6, indicates the light warp of different wave length Deviateed by the converging focal point after camera lens.Figure 12 B shows the astigmatism curve of the optical imaging system of embodiment 6, indicates meridian Curvature of the image and sagittal image surface bending.Figure 12 C shows the distortion curve of the optical imaging system of embodiment 6, indicates different Distortion sizes values at image height.Figure 12 D shows the ratio chromatism, curve of the optical imaging system of embodiment 6, indicates light Via the deviation of the different image heights after camera lens on imaging surface.According to Figure 12 A to Figure 12 D it is found that light given by embodiment 6 Learning imaging system can be realized good image quality.
Embodiment 7
The optical imaging system according to the embodiment of the present application 7 is described referring to Figure 13 to Figure 14 D.Figure 13 shows root According to the structural schematic diagram of the optical imaging system of the embodiment of the present application 7.
As shown in figure 13, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence includes: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Concave surface, image side surface S6 are concave surface.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.The Five lens E5 have negative power, and object side S9 is concave surface, and image side surface S10 is concave surface.Optical filter E6 have object side S11 and Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 19 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 7 And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 19
As shown in Table 19, in embodiment 7, the object side of any one lens of the first lens E1 into the 5th lens E5 It is aspherical with image side surface.Table 20 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 7, wherein each Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -9.8348E-03 5.3838E-01 -6.4165E+00 4.7169E+01 -2.1321E+02 5.9946E+02 -1.0199E+03 9.6099E+02 -3.8578E+02
S2 -3.1903E-02 -4.7120E-01 6.7564E+00 -6.7671E+01 4.1299E+02 -1.5407E+03 3.4266E+03 -4.1872E+03 2.1603E+03
S3 -1.0461E-01 -1.5112E-01 6.1281E+00 -5.7290E+01 3.3742E+02 -1.2285E+03 2.6587E+03 -3.1437E+03 1.5628E+03
S4 -1.0311E-02 2.8364E-01 1.4534E+00 -9.8207E+00 5.5889E+01 -2.1599E+02 5.3147E+02 -7.5066E+02 4.8279E+02
S5 -3.4292E-01 7.8323E-01 -7.5404E+00 5.2135E+01 -2.4002E+02 7.1034E+02 -1.2986E+03 1.3368E+03 -6.0051E+02
S6 -2.6994E-01 4.0489E-01 -1.5994E+00 5.3845E+00 -1.2368E+01 1.9015E+01 -1.7924E+01 9.1469E+00 -1.9273E+00
S7 -1.0648E-01 5.0740E-02 -6.8248E-02 -1.5861E-03 8.7840E-02 -7.5406E-02 2.7945E-02 -4.9668E-03 3.4715E-04
S8 -1.0656E-01 -3.0019E-02 1.6183E-01 -3.5076E-02 -7.5165E-02 5.8853E-02 -1.8617E-02 2.8182E-03 -1.6858E-04
S9 -4.3804E-01 3.3367E-01 7.6476E-02 -1.9295E-01 1.0454E-01 -2.9361E-02 4.6923E-03 -4.0553E-04 1.4763E-05
S10 -2.8242E-01 3.0188E-01 -2.1707E-01 1.0690E-01 -3.6276E-02 8.1601E-03 -1.1411E-03 8.8939E-05 -2.9374E-06
Table 20
Table 21 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S13 in embodiment 7 Distance TTL of the object side S1 to imaging surface S13 of E1 on optical axis, maximum angle of half field-of view HFOV, optical imaging system aperture Number Fno, total effective focal length f of optical imaging system and the effective focal length f1 to f5 of each lens.
ImgH(mm) 3.04 f1(mm) 2.64
TTL(mm) 3.70 f2(mm) -11.02
HFOV(°) 42.61 f3(mm) -19.86
Fno 2.24 f4(mm) 2.21
f(mm) 3.20 f5(mm) -1.67
Table 21
Figure 14 A shows chromatic curve on the axis of the optical imaging system of embodiment 7, indicates the light warp of different wave length Deviateed by the converging focal point after camera lens.Figure 14 B shows the astigmatism curve of the optical imaging system of embodiment 7, indicates meridian Curvature of the image and sagittal image surface bending.Figure 14 C shows the distortion curve of the optical imaging system of embodiment 7, indicates different Distortion sizes values at image height.Figure 14 D shows the ratio chromatism, curve of the optical imaging system of embodiment 7, indicates light Via the deviation of the different image heights after camera lens on imaging surface.According to Figure 14 A to Figure 14 D it is found that light given by embodiment 7 Learning imaging system can be realized good image quality.
Embodiment 8
The optical imaging system according to the embodiment of the present application 8 is described referring to Figure 15 to Figure 16 D.Figure 15 shows root According to the structural schematic diagram of the optical imaging system of the embodiment of the present application 8.
As shown in figure 15, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to Sequence includes: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, optical filter E6 and imaging surface S13.
First lens E1 has positive light coke, and object side S1 is convex surface, and image side surface S2 is concave surface.Second lens E2 has Negative power, object side S3 are convex surface, and image side surface S4 is concave surface.The third lens E3 has negative power, and object side S5 is Concave surface, image side surface S6 are concave surface.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is convex surface.The Five lens E5 have negative power, and object side S9 is concave surface, and image side surface S10 is concave surface.Optical filter E6 have object side S11 and Image side surface S12.Light from object sequentially passes through each surface S1 to S12 and is ultimately imaged on imaging surface S13.
Table 22 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 8 And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 22
As shown in Table 22, in embodiment 8, the object side of any one lens of the first lens E1 into the 5th lens E5 It is aspherical with image side surface.Table 23 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 8, wherein each Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 -1.1836E-01 3.4548E+00 -4.8586E+01 4.1672E+02 -2.2396E+03 7.5745E+03 -1.5637E+04 1.7969E+04 -8.8058E+03
S2 1.5428E-01 -5.0686E+00 1.0293E+02 -1.2863E+03 9.7738E+03 -4.5693E+04 1.2812E+05 -1.9762E+05 1.2890E+05
S3 -1.1884E-02 -4.1521E+00 9.8207E+01 -1.2631E+03 9.8283E+03 -4.6808E+04 1.3327E+05 -2.0833E+05 1.3762E+05
S4 -2.2782E-01 5.3464E+00 -8.0139E+01 8.0167E+02 -5.0114E+03 1.9791E+04 -4.7930E+04 6.4923E+04 -3.7694E+04
S5 -4.3779E-01 1.1406E+00 -1.5679E+01 1.7712E+02 -1.2280E+03 5.1353E+03 -1.2751E+04 1.7401E+04 -1.0136E+04
S6 -3.7183E-01 1.1004E+00 -5.6989E+00 2.3188E+01 -6.4259E+01 1.1796E+02 -1.3335E+02 8.2455E+01 -2.1218E+01
S7 -8.2131E-02 3.6521E-02 2.5376E-02 -2.0751E-01 2.8094E-01 -1.7173E-01 5.4956E-02 -9.0140E-03 6.0090E-04
S8 -1.8931E-01 1.1498E-01 2.0630E-01 -3.0592E-01 1.8664E-01 -6.6550E-02 1.4803E-02 -1.9333E-03 1.1342E-04
S9 -3.6505E-01 1.5922E-01 2.5629E-01 -3.0469E-01 1.5053E-01 -4.1945E-02 6.8754E-03 -6.2108E-04 2.3934E-05
S10 -2.4466E-01 2.5147E-01 -1.8756E-01 9.9042E-02 -3.5931E-02 8.5092E-03 -1.2404E-03 1.0062E-04 -3.4723E-06
Table 23
Table 24 gives half ImgH, the first lens of effective pixel area diagonal line length on imaging surface S13 in embodiment 8 Distance TTL of the object side S1 to imaging surface S13 of E1 on optical axis, maximum angle of half field-of view HFOV, optical imaging system aperture Number Fno, total effective focal length f of optical imaging system and the effective focal length f1 to f5 of each lens.
ImgH(mm) 3.04 f1(mm) 2.77
TTL(mm) 3.30 f2(mm) -20.08
HFOV(°) 46.29 f3(mm) -31.61
Fno 2.24 f4(mm) 2.26
f(mm) 2.85 f5(mm) -1.58
Table 24
Figure 16 A shows chromatic curve on the axis of the optical imaging system of embodiment 8, indicates the light warp of different wave length Deviateed by the converging focal point after camera lens.Figure 16 B shows the astigmatism curve of the optical imaging system of embodiment 8, indicates meridian Curvature of the image and sagittal image surface bending.Figure 16 C shows the distortion curve of the optical imaging system of embodiment 8, indicates different Distortion sizes values at image height.Figure 16 D shows the ratio chromatism, curve of the optical imaging system of embodiment 8, indicates light Via the deviation of the different image heights after camera lens on imaging surface.According to Figure 16 A to Figure 16 D it is found that light given by embodiment 8 Learning imaging system can be realized good image quality.
To sum up, embodiment 1 to embodiment 8 meets relationship shown in table 25 respectively.
Conditional embodiment 1 2 3 4 5 6 7 8
TTL/ImgH 1.15 1.15 1.16 1.17 1.16 1.18 1.22 1.09
f123/f 1.11 1.11 1.11 1.15 1.15 1.11 1.12 1.16
f2/f45 0.90 1.13 1.31 0.50 0.36 0.70 0.59 1.45
R1/R2 0.38 0.42 0.43 0.44 0.35 0.36 0.34 0.41
R8/f5 0.75 0.72 0.72 0.68 0.62 0.75 0.78 0.83
|R9+R10|/|R9-R10| 0.10 0.34 0.31 0.61 0.25 0.04 0.08 0.22
∑AT/∑CT 0.45 0.42 0.44 0.42 0.54 0.43 0.45 0.52
T12/CT1 0.16 0.16 0.17 0.19 0.18 0.16 0.16 0.16
CT5/CT4 0.44 0.41 0.42 0.38 0.51 0.41 0.40 0.53
f1/f2 -0.17 -0.13 -0.11 -0.08 -0.29 -0.20 -0.24 -0.14
SD/TD 0.91 0.91 0.91 0.91 0.91 0.90 0.91 0.91
Table 25
The application also provides a kind of imaging device, and electronics photosensitive element can be photosensitive coupling element (CCD) or complementation Property matal-oxide semiconductor element (CMOS).Imaging device can be the independent imaging equipment of such as digital camera, be also possible to The image-forming module being integrated on the mobile electronic devices such as mobile phone.The imaging device is equipped with optical imagery system described above System.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein Can technical characteristic replaced mutually and the technical solution that is formed.

Claims (10)

  1. It by object side to image side sequentially include: the first lens, the second lens, the third lens, along optical axis 1. optical imaging system Four lens and the 5th lens, which is characterized in that
    First lens have positive light coke, and object side is convex surface, and image side surface is concave surface；
    Second lens have negative power,
    The third lens have negative power；
    4th lens have positive light coke, and image side surface is convex surface；
    5th lens have negative power, and object side is concave surface；And
    The object side of first lens to the optical imaging system distance TTL of the imaging surface on the optical axis with it is described The half ImgH of effective pixel area diagonal line length meets 1 < TTL/ImgH < 1.3 on the imaging surface of optical imaging system.
  2. 2. optical imaging system according to claim 1, which is characterized in that the effective focal length f2 of second lens and institute The combined focal length f45 for stating the 4th lens and the 5th lens meets 0 < f2/f45 < 1.6.
  3. 3. optical imaging system according to claim 1, which is characterized in that the effective focal length f5 of the 5th lens and institute The radius of curvature R 8 for stating the image side surface of the 4th lens meets 0.2 < R8/f5 < 1.
  4. 4. optical imaging system according to claim 1, which is characterized in that total effective focal length of the optical imaging system The combined focal length f123 of f and first lens, second lens and the third lens meets 0.8 < f123/f < 1.3.
  5. 5. optical imaging system according to claim 1, which is characterized in that the curvature of the object side of first lens half The radius of curvature R 2 of the image side surface of diameter R1 and first lens meets 0 < R1/R2 < 0.9.
  6. 6. optical imaging system according to claim 1, which is characterized in that the effective focal length f1 of first lens and institute The effective focal length f2 for stating the second lens meets -0.6 < f1/f2 < 0.
  7. 7. optical imaging system according to claim 1, which is characterized in that the curvature of the object side of the 5th lens half The radius of curvature R 10 of the image side surface of diameter R9 and the 5th lens meets 0 < | R9+R10 |/| R9-R10 | < 1.
  8. 8. optical imaging system according to claim 1, which is characterized in that first lens on the optical axis in The spacing distance T12 of heart thickness CT1 and first lens and second lens on the optical axis meets 0 < T12/CT1 < 0.3.
  9. 9. optical imaging system according to claim 1, which is characterized in that the 4th lens on the optical axis in The center thickness CT5 of heart thickness CT4 and the 5th lens on the optical axis meets 0 < CT5/CT4 < 0.7.
  10. 10. optical imaging system, along optical axis by object side to image side sequentially include: the first lens, the second lens, the third lens, 4th lens and the 5th lens, which is characterized in that
    First lens have positive light coke, and object side is convex surface, and image side surface is concave surface；
    Second lens have negative power,
    The third lens have negative power；
    4th lens have positive light coke, and image side surface is convex surface；
    5th lens have negative power, and object side is concave surface；And
    The combined focal length f45 of the effective focal length f2 of second lens and the 4th lens and the 5th lens meets 0.36 ≤ f2/f45 < 1.6.
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