CN108181701A - Optical imagery eyeglass group - Google Patents

Optical imagery eyeglass group Download PDF

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Publication number
CN108181701A
CN108181701A CN201810167176.4A CN201810167176A CN108181701A CN 108181701 A CN108181701 A CN 108181701A CN 201810167176 A CN201810167176 A CN 201810167176A CN 108181701 A CN108181701 A CN 108181701A
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CN
China
Prior art keywords
lens
eyeglass group
optical imagery
imagery eyeglass
object side
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810167176.4A
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Chinese (zh)
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CN108181701B (en
Inventor
周鑫
杨健
闻人建科
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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 CN201810167176.4A priority Critical patent/CN108181701B/en
Publication of CN108181701A publication Critical patent/CN108181701A/en
Priority to PCT/CN2018/100483 priority patent/WO2019165761A1/en
Application granted granted Critical
Publication of CN108181701B publication Critical patent/CN108181701B/en
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Classifications

    • 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
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces

Abstract

This application discloses a kind of optical imagery eyeglass group, which is sequentially included along optical axis by object side to image side：First lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.First lens have negative power, and object side and image side surface are concave surface；Second lens have positive light coke；Third lens have positive light coke or negative power；4th lens have positive light coke or negative power；5th lens have positive light coke or negative power, and object side is convex surface；6th lens have positive light coke；7th lens have positive light coke or negative power, and image side surface is concave surface.The maximum angle of half field-of view HFOV of optical imagery eyeglass group meets 50 ° of HFOV ＞.

Description

Optical imagery eyeglass group
Technical field
This application involves a kind of optical imagery eyeglass group, more specifically, this application involves a kind of light for including seven lens It studies as lens set.
Background technology
In recent years, with the quick update of the consumption electronic products such as mobile phone, tablet computer, market is imaged product end The requirement of camera lens is further diversified.In addition to requiring imaging lens that there is light and short shape and having high pixel, high-resolution Etc. characteristics, wider field of view angle can be had by also requiring the imaging lens at product end.Wide-angle lens has that focal length is short, the depth of field The long, characteristics such as field angle is big, in the same circumstances, can obtain more information content.
In consideration of it, the present invention, which proposes one kind, possesses the characteristics such as large aperture, superior image quality, wide-angle, and take into account small-sized Change, suitable for the optical system of portable electronic product.
Invention content
This application provides be applicable to portable electronic product, can at least solve or part solve it is of the prior art The optical imagery eyeglass group of above-mentioned at least one shortcoming.
On the one hand, this application provides such a optical imagery eyeglass group, the optical imagery eyeglass group along optical axis by Object side to image side sequentially includes：First lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and Seven lens.First lens can have negative power, and object side and image side surface can be concave surface；Second lens can have positive light focus Degree；Third lens have positive light coke or negative power；4th lens have positive light coke or negative power；5th lens have Positive light coke or negative power, object side can be convex surface；6th lens can have positive light coke；7th lens have positive light focus Degree or negative power, image side surface can be concave surface.Wherein, the maximum angle of half field-of view HFOV of optical imagery eyeglass group can meet HFOV 50 ° of ＞.
In one embodiment, the effective focal length f1 of the first lens and total effective focal length f of optical imagery eyeglass group can Meet -3.0 ＜ f1/f ＜ -2.0.
In one embodiment, the effective focal length f1 of the first lens and the effective focal length f2 of the second lens can meet -3.5 ＜ f1/f2 ＜ -2.0.
In one embodiment, the effective focal length f6 of the 6th lens and the effective focal length f2 of the second lens can meet 0.8 ＜ f6/f2 ＜ 2.0.
In one embodiment, total effective focal length f of optical imagery eyeglass group and the group of the 4th lens and the 5th lens Complex focus f45 can meet f/ | f45 | ＜ 0.4.
In one embodiment, the object side of the 7th lens can be convex surface；Total effective focal length f of optical imagery eyeglass group It can meet 1.5 ＜ f/R13 ＜ 3.5 with the radius of curvature R 13 of the object side of the 7th lens.
In one embodiment, the song of the image side surface of 13 and the 7th lens of radius of curvature R of the object side of the 7th lens Rate radius R14 can meet 1.0 ＜ R13/R14 ＜ 2.0.
In one embodiment, the curvature of the image side surface of 3 and second lens of radius of curvature R of the object side of the second lens Radius R4 can meet 1.8 ＜ (R3-R4)/(R3+R4) ＜ 3.8.
In one embodiment, the first lens to the 7th lens are respectively at the sum of center thickness on optical axis ∑ CT and In one lens to the 7th lens the sum of the spacing distance of two lens of arbitrary neighborhood on optical axis ∑ AT can meet ∑ CT/ ∑s AT≤ 2.0。
In one embodiment, the first lens in the center thickness CT1 on optical axis and the second lens on optical axis Heart thickness CT2 can meet 0.4 ＜ CT1/CT2 ＜ 1.0.
In one embodiment, spacing distance T12 and the 6th lens on optical axis of the first lens and the second lens and Spacing distance T67 of 7th lens on optical axis can meet 1.0≤T12/T67≤1.5.
In one embodiment, the 6th lens in the center thickness CT6 on optical axis and the 7th lens on optical axis Heart thickness CT7 can meet 1.0 ＜ CT6/CT7 ＜ 2.0.
In one embodiment, total effective focal length f of optical imagery eyeglass group and the 6th lens are in the center on optical axis Thickness CT6 can meet 2 ＜ f/CT6 ＜ 7.
In one embodiment, the center of the object side of the first lens to the imaging surface of optical imagery eyeglass group in optical axis On distance TTL and optical imagery eyeglass group imaging surface on the half ImgH of effective pixel area diagonal line length can meet 1.5 ＜ TTL/ImgH ＜ 2.5.
On the other hand, this application provides such a optical imagery eyeglass groups, and the optical imagery eyeglass group is along optical axis Sequentially included by object side to image side：First lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and 7th lens.First lens can have negative power, and object side and image side surface can be concave surface；Second lens can have positive light Focal power；Third lens have positive light coke or negative power；4th lens have positive light coke or negative power；5th lens have There are positive light coke or negative power, object side can be convex surface；6th lens can have positive light coke；7th lens have positive light Focal power or negative power, image side surface can be concave surface.Wherein, total effective focal length f of optical imagery eyeglass group and the 6th lens in Center thickness CT6 on optical axis can meet 2 ＜ f/CT6 ＜ 7.
Another aspect, this application provides such a optical imagery eyeglass groups, and the optical imagery eyeglass group is along optical axis Sequentially included by object side to image side：First lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and 7th lens.First lens can have negative power, and object side and image side surface can be concave surface；Second lens can have positive light Focal power；Third lens have positive light coke or negative power；4th lens have positive light coke or negative power；5th lens have There are positive light coke or negative power, object side can be convex surface；6th lens can have positive light coke；7th lens have positive light Focal power or negative power, image side surface can be concave surface.Wherein, the effective focal length of the effective focal length f6 of the 6th lens and the second lens F2 can meet 0.8 ＜ f6/f2 ＜ 2.0.
Another aspect, this application provides such a optical imagery eyeglass groups, and the optical imagery eyeglass group is along optical axis Sequentially included by object side to image side：First lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and 7th lens.First lens can have negative power, and object side and image side surface can be concave surface；Second lens can have positive light Focal power；Third lens have positive light coke or negative power；4th lens have positive light coke or negative power；5th lens have There are positive light coke or negative power, object side can be convex surface；6th lens can have positive light coke；7th lens have positive light Focal power or negative power, image side surface can be concave surface.Wherein, total effective focal length f of optical imagery eyeglass group and the 7th lens The radius of curvature R 13 of object side can meet 1.5 ＜ f/R13 ＜ 3.5.
Another aspect, this application provides such a optical imagery eyeglass groups, and the optical imagery eyeglass group is along optical axis Sequentially included by object side to image side：First lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and 7th lens.First lens can have negative power, and object side and image side surface can be concave surface；Second lens can have positive light Focal power；Third lens have positive light coke or negative power；4th lens have positive light coke or negative power；5th lens have There are positive light coke or negative power, object side can be convex surface；6th lens can have positive light coke；7th lens have positive light Focal power or negative power, image side surface can be concave surface.Wherein, 3 and second lens of radius of curvature R of the object side of the second lens The radius of curvature R 4 of image side surface can meet 1.8 ＜ (R3-R4)/(R3+R4) ＜ 3.8.
Another aspect, this application provides such a optical imagery eyeglass groups, and the optical imagery eyeglass group is along optical axis Sequentially included by object side to image side：First lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and 7th lens.First lens can have negative power, and object side and image side surface can be concave surface；Second lens can have positive light Focal power；Third lens have positive light coke or negative power；4th lens have positive light coke or negative power；5th lens have There are positive light coke or negative power, object side can be convex surface；6th lens can have positive light coke；7th lens have positive light Focal power or negative power, image side surface can be concave surface.Wherein, 13 and the 7th lens of radius of curvature R of the object side of the 7th lens The radius of curvature R 14 of image side surface can meet 1.0 ＜ R13/R14 ＜ 2.0.
Another aspect, this application provides such a optical imagery eyeglass groups, and the optical imagery eyeglass group is along optical axis Sequentially included by object side to image side：First lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and 7th lens.First lens can have negative power, and object side and image side surface can be concave surface；Second lens can have positive light Focal power；Third lens have positive light coke or negative power；4th lens have positive light coke or negative power；5th lens have There are positive light coke or negative power, object side can be convex surface；6th lens can have positive light coke；7th lens have positive light Focal power or negative power, image side surface can be concave surface.Wherein, the first lens are in center thickness CT1 and the second lens on optical axis It can meet 0.4 ＜ CT1/CT2 ＜ 1.0 in the center thickness CT2 on optical axis.
Another aspect, this application provides such a optical imagery eyeglass groups, and the optical imagery eyeglass group is along optical axis Sequentially included by object side to image side：First lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and 7th lens.First lens can have negative power, and object side and image side surface can be concave surface；Second lens can have positive light Focal power；Third lens have positive light coke or negative power；4th lens have positive light coke or negative power；5th lens have There are positive light coke or negative power, object side can be convex surface；6th lens can have positive light coke；7th lens have positive light Focal power or negative power, image side surface can be concave surface.Wherein, the spacing distance T12 of the first lens and the second lens on optical axis The spacing distance T67 on optical axis can meet 1.0≤T12/T67≤1.5 with the 6th lens and the 7th lens.
The application employs multi-disc (for example, seven) lens, by each power of lens of reasonable distribution, face type, each Spacing etc. on axis between the center thickness of mirror and each lens so that above-mentioned optical imagery eyeglass group have miniaturization, wide-angle, At least one advantageous effects such as large aperture, high image quality.
Description of the drawings
With reference to 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 structure diagram of the optical imagery eyeglass group 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 imagery eyeglass group of embodiment 1, astigmatism curve, abnormal Varied curve and ratio chromatism, curve；
Fig. 3 shows the structure diagram of the optical imagery eyeglass group according to the embodiment of the present application 2；
Fig. 4 A to Fig. 4 D respectively illustrate chromatic curve on the axis of the optical imagery eyeglass group of embodiment 2, astigmatism curve, abnormal Varied curve and ratio chromatism, curve；
Fig. 5 shows the structure diagram of the optical imagery eyeglass group according to the embodiment of the present application 3；
Fig. 6 A to Fig. 6 D respectively illustrate chromatic curve on the axis of the optical imagery eyeglass group of embodiment 3, astigmatism curve, abnormal Varied curve and ratio chromatism, curve；
Fig. 7 shows the structure diagram of the optical imagery eyeglass group according to the embodiment of the present application 4；
Fig. 8 A to Fig. 8 D respectively illustrate chromatic curve on the axis of the optical imagery eyeglass group of embodiment 4, astigmatism curve, abnormal Varied curve and ratio chromatism, curve；
Fig. 9 shows the structure diagram of the optical imagery eyeglass group according to the embodiment of the present application 5；
Figure 10 A to Figure 10 D respectively illustrate chromatic curve on the axis of the optical imagery eyeglass group of embodiment 5, astigmatism curve, Distortion curve and ratio chromatism, curve；
Figure 11 shows the structure diagram of the optical imagery eyeglass group according to the embodiment of the present application 6；
Figure 12 A to Figure 12 D respectively illustrate chromatic curve on the axis of the optical imagery eyeglass group of embodiment 6, astigmatism curve, Distortion curve and ratio chromatism, curve；
Figure 13 shows the structure diagram of the optical imagery eyeglass group according to the embodiment of the present application 7；
Figure 14 A to Figure 14 D respectively illustrate chromatic curve on the axis of the optical imagery eyeglass group of embodiment 7, astigmatism curve, Distortion curve and ratio chromatism, curve；
Figure 15 shows the structure diagram of the optical imagery eyeglass group according to the embodiment of the present application 8；
Figure 16 A to Figure 16 D respectively illustrate chromatic curve on the axis of the optical imagery eyeglass group of embodiment 8, astigmatism curve, Distortion curve and ratio chromatism, curve；
Figure 17 shows the structure diagrams of the optical imagery eyeglass group according to the embodiment of the present application 9；
Figure 18 A to Figure 18 D respectively illustrate chromatic curve on the axis of the optical imagery eyeglass group of embodiment 9, astigmatism curve, Distortion curve and ratio chromatism, curve；
Figure 19 shows the structure diagram of the optical imagery eyeglass group according to the embodiment of the present application 10；
It is bent that Figure 20 A to Figure 20 D respectively illustrate chromatic curve on the axis of the optical imagery eyeglass group of embodiment 10, astigmatism Line, distortion curve and ratio chromatism, curve.
Specific embodiment
Refer to the attached drawing is made more detailed description by the application in order to better understand to the various aspects of the application.It should Understand, these are described in detail the only description to the illustrative embodiments of the application rather than limit the application in any way Range.In the specification, the identical element of identical reference numbers.It states "and/or" and includes associated institute Any and all combinations of one or more of list of items.
It should be noted that in the present specification, the statement of first, second, third, etc. is only used for a feature and another spy Sign distinguishes, and does not indicate that any restrictions to feature.Therefore, in the case of without departing substantially from teachings of the present application, hereinafter The first lens discussed are also known as the second lens or third lens.
In the accompanying drawings, for convenience 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 In the spherical surface that shows 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 putting, 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.It is known as object side near the surface of object in each lens, It is known as image side surface near the surface of imaging surface in each lens.
It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory Represent there is stated feature, element and/or component, but do not preclude the presence or addition of one or more when being used in bright book Other feature, element, component and/or combination thereof.In addition, ought the statement of such as at least one of " ... " appear in institute When after the list of row feature, the individual component in entire listed feature rather than modification list is modified.In addition, when describing this During the embodiment of application, represented " one or more embodiments of the application " using "available".Also, term " illustrative " It is intended to refer to example or illustration.
Unless otherwise defined, otherwise all terms used herein be respectively provided with (including technical terms and scientific words) 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) meaning consistent with their meanings in the context of the relevant technologies should be interpreted as having, and It will not be explained with idealization or excessively formal sense, unless clearly so limiting herein.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the 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.
It may include that such as seven have the saturating of focal power according to the optical imagery eyeglass group of the application illustrative embodiments Mirror, that is, the first lens, the second lens, third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.This seven Lens are along optical axis by object side to image side sequential.
In the exemplary embodiment, the first lens can have negative power, and object side can be concave surface, and image side surface can be Concave surface；Second lens can have positive light coke；Third lens have positive light coke or negative power；4th lens have positive light focus Degree or negative power；5th lens have positive light coke or negative power, and object side can be convex surface；6th lens can have just Focal power；7th lens have positive light coke or negative power, and image side surface can be concave surface.First power of lens be it is negative, And its object side and image side surface are all concave surface, the aberration that the first lens of such setting recoverable generate, improving optical system Performance.
In the exemplary embodiment, the object side of the second lens can be convex surface, and image side surface can be convex surface.
In the exemplary embodiment, the object side of the 7th lens can be convex surface.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 50 ° of conditional HFOV ＞, wherein, HFOV is the maximum angle of half field-of view of optical imagery eyeglass group.More specifically, HFOV can further meet 50.4 °≤HFOV≤ 51.9°.It is such to be configured with the characteristic for conducive to the maximum angle of half field-of view of selection optical imagery eyeglass group, realizing wide-angle, meet just Take the visual field demand of formula electronic product.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 0.8 ＜ f6/f2 ＜ 2.0 of conditional, Wherein, f6 is the effective focal length of the 6th lens, and f2 is the effective focal length of the second lens.More specifically, f6 and f2 can further expire 0.9 ＜ f6/f2 ＜ 1.9 of foot, for example, 0.97≤f6/f2≤1.86.Rationally the 6th lens of setting and the second lens effective focal length Ratio, the curvature of field of energy active balance imaging system；And it can effectively control system size, realization minimize.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet -3.0 ＜ f1/f ＜ of conditional - 2.0, wherein, f1 is the effective focal length of the first lens, and f is total effective focal length of optical imagery eyeglass group.More specifically, f1 and f - 2.9 ＜ f1/f ＜ -2.1 can further be met, for example, -2.87≤f1/f≤- 2.21.Rationally effective coke of the first lens of setting Away from helping to improve the field angle of imaging system, realize the characteristic of wide-angle；Help to be promoted the convergence ability to light, adjust System overall length is shortened in light focusing position.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 1.5 ＜ TTL/ImgH ＜ of conditional 2.5, wherein, TTL is the center of the object side of the first lens to distance of the imaging surface on optical axis of optical imagery eyeglass group, ImgH is the half of effective pixel area diagonal line length on the imaging surface of optical imagery eyeglass group.More specifically, TTL and ImgH into One step can meet 1.7 ＜ TTL/ImgH ＜ 2.0, for example, 1.78≤TTL/ImgH≤1.94.Rationally the first lens object side of setting On to the axis of imaging surface on distance and imaging surface the half of effective pixel area diagonal line length ratio, it can be ensured that optical system has There is frivolous and wide-angle characteristic so that the lens set can be applied to high performance portable electronic product.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 1.5 ＜ f/R13 ＜ 3.5 of conditional, Wherein, f is total effective focal length of optical imagery eyeglass group, and R13 is the radius of curvature of the object side of the 7th lens.More specifically, f 1.7 ＜ f/R13 ＜ 3.3 can further be met with R13, for example, 1.83≤f/R13≤3.21.Reasonably select the 7th lens object side The radius of curvature in face, the astigmatism of energy active balance imaging system, shortens the back focal length of system, further ensures that the small of optical system Type.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 1.8 ＜ of conditional (R3-R4)/(R3 + R4) ＜ 3.8, wherein, R3 is the radius of curvature of the object side of the second lens, and R4 is the radius of curvature of the image side surface of the second lens. More specifically, R3 and R4 can further meet 1.9 ＜ (R3-R4)/(R3+R4) ＜ 3.6, for example, 1.98≤(R3-R4)/(R3+ R4)≤3.50.It is stronger flat to may be such that optical system has for reasonable distribution the second lens object side and the radius of curvature of image side surface The ability of weighing apparatus astigmatism.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet -3.5 ＜ f1/f2 ＜ of conditional - 2.0, 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 are further - 3.1 ＜ f1/f2 ＜ -2.2 can be met, for example, -3.04≤f1/f2≤- 2.26.The first lens of reasonable distribution and the second lens Effective focal length, in the case where the first lens strength is negative, it is ensured that the second power of lens is just, so as to effectively control light The volume of system.First lens and the second lens have opposite focal power, and optical system can be made to have preferable balance picture The ability of difference.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 1.0 ＜ R13/R14 ＜ of conditional 2.0, wherein, R13 is the radius of curvature of the object side of the 7th lens, and R14 is the radius of curvature of the image side surface of the 7th lens.More Body, R13 and R14 can further meet 1.1 ＜ R13/R14 ＜ 1.9, for example, 1.20≤R13/R14≤1.78.Rationally control 7th lens object side and the radius of curvature of image side surface help to reduce the power of lens close to optical system image side, make Optical system has the ability of preferable balance astigmatism and distortion.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 0.4 ＜ CT1/CT2 ＜ of conditional 1.0, wherein, CT1 is the first lens in the center thickness on optical axis, and CT2 is the second lens in the center thickness on optical axis.More Body, CT1 and CT2 can further meet 0.45 ＜ CT1/CT2 ＜ 0.65, for example, 0.49≤CT1/CT2≤0.57.Rationally divide Ratio with the first lens and the second lens center thickness can effectively reduce system front end size, meet the characteristic of wide-angle；And And be conducive to the structure of adjustment system, reduce the difficulty of machining eyeglass and assembling.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 1.0≤T12/T67 of conditional≤ 1.5, wherein, T12 is the spacing distance of the first lens and the second lens on optical axis, and T67 exists for the 6th lens and the 7th lens Spacing distance on optical axis.More specifically, T12 and T67 can further meet 1.01≤T12/T67≤1.48.Rationally control the The ratio of the airspace of one lens and the second lens on optical axis and the airspace of the 6th lens and the 7th lens on optical axis Value makes have enough clearance spaces between lens, so as to which lens surface be made to change degree of freedom higher, carrys out lifting system correction with this The ability of astigmatism and the curvature of field.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 1.0 ＜ CT6/CT7 ＜ of conditional 2.0, wherein, CT6 is the 6th lens in the center thickness on optical axis, and CT7 is the 7th lens in the center thickness on optical axis.More Body, CT6 and CT7 can further meet 1.2 ＜ CT6/CT7 ＜ 1.8, for example, 1.31≤CT6/CT7≤1.75.Reasonable distribution The ratio of 6th lens and the 7th lens center thickness can effectively reduce System Back-end size, avoid optical system lens set Volume is excessive, contributes to the assembling of eyeglass and realizes higher space availability ratio.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet conditional f/ | f45 | ＜ 0.4, In, f is total effective focal length of optical imagery eyeglass group, and f45 is the combined focal length of the 4th lens and the 5th lens.More specifically, f It can further meet 0≤f/ with f45 | f45 |≤0.31.Reasonably select the combined focal length of the 4th lens and the 5th lens, Ke Yizeng The deflection angle of light, aberration correction greatly realize the characteristic of wide-angle；Meanwhile help suitably to shorten the overall length of optical system, meet Lightening requirement.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet conditional ∑ CT/ ∑s AT≤2.0, Wherein, ∑ CT is the first lens to the 7th lens respectively at the sum of center thickness on optical axis, and ∑ AT is the first lens to the 7th The sum of the spacing distance of two lens of arbitrary neighborhood on optical axis in lens.More specifically, ∑ CT and ∑ AT can further meet 1.52≤CT/∑AT≤1.91.The sum of the center thickness of each lens on optical axis and adjacent each lens are rationally controlled in optical axis On the sum of airspace ratio so that the spacing between lens and lens is in the state of a relative equilibrium, room for promotion Utilization rate；At the same time it can also ensure camera lens miniaturization while, the aberration correcting capability of lifting system.
In the exemplary embodiment, the optical imagery eyeglass group of the application can meet 2 ＜ f/CT6 ＜ 7 of conditional, In, f is total effective focal length of optical imagery eyeglass group, and CT6 is the 6th lens in the center thickness on optical axis.More specifically, f and CT6 can further meet 5 ＜ f/CT6 ＜ 7, for example, 5.13≤f/CT6≤6.42.The rationally center thickness of the 6th lens of setting, The astigmatism of imaging system can be effectively balanced, helps to shorten imaging system overall length, further lifting system performance.
In the exemplary embodiment, optical imagery eyeglass group may also include at least one diaphragm, with promoted camera lens into Image quality amount.For example, diaphragm may be provided between the first lens and the second lens.
Optionally, above-mentioned optical imagery eyeglass group may also include optical filter for correcting color error ratio and/or for protecting Shield is located at the protective glass of the photosensitive element on imaging surface.
Multi-disc eyeglass can be used, such as described above according to the optical imagery eyeglass group of the above embodiment of the application Seven.Pass through spacing on the axis between each power of lens of reasonable distribution, face type, the center thickness of each lens and each lens Deng, can effectively the volume of contract lenses group, reduce the susceptibility of lens set and improve the machinability of lens set so that optics Imaging lens group is more advantageous to producing and processing and being applicable to portable electronic product.
By the optical imagery eyeglass group of above-mentioned configuration, also with characteristics such as large aperture, wide-angles, in identical shooting situation Under, more information shot can be obtained, meets the visual field demand of portable electronic product.
In presently filed embodiment, at least one of minute surface of each lens is aspherical mirror.Non-spherical lens The characteristics of be：From lens centre to lens perimeter, curvature is consecutive variations.It is constant with having from lens centre to lens perimeter The spherical lens of curvature is different, and non-spherical lens has more preferably radius of curvature characteristic, and there is improvement to distort aberration and improve picture The advantages of dissipating aberration.After non-spherical lens, the aberration occurred when imaging can be eliminated as much as possible, so as to improve Image quality.
However, it will be understood by those of skill in the art that without departing from this application claims technical solution situation Under, the lens numbers for forming optical imagery eyeglass group can be changed, to obtain each result and the advantage described in this specification.Example Such as, although being described by taking seven lens as an example in embodiments, which is not limited to include seven A lens.If desired, the optical imagery eyeglass group may also include the lens of other quantity.
The specific implementation for the optical imagery eyeglass group for being applicable to the above embodiment is further described with reference to the accompanying drawings Example.
Embodiment 1
Referring to Fig. 1 to Fig. 2 D descriptions according to the optical imagery eyeglass group of the embodiment of the present application 1.Fig. 1 shows basis The structure diagram of the optical imagery eyeglass group of the embodiment of the present application 1.
As shown in Figure 1, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side Sequentially include：First lens E1, diaphragm STO, the second lens E2, third lens E3, the 4th lens E4, the 5th lens E5, the 6th Lens E6, the 7th lens E7, optical filter E8 and imaging surface S17.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Second lens E2 has Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface.Third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.7th lens E7 has negative power, and object side S13 is convex surface, as Side S14 is concave surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 1 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 1 And circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 1
As shown in Table 1, the object side of any one lens in the first lens E1 to the 7th lens E7 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, paraxial curvature c is the inverse of 1 mean curvature radius R of upper table)；K for circular cone coefficient ( It has been provided in table 1)；Ai is the correction factor of aspherical i-th-th ranks.The following table 2 is given available for each aspherical in embodiment 1 The high order term coefficient A of minute surface S1-S144、A6、A8、A10、A12、A14、A16、A18And A20。
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 5.5932E-01 -8.7128E-01 2.0821E+00 -5.4300E+00 1.1505E+01 -1.7054E+01 1.5679E+01 -7.9991E+00 1.7228E+00
S2 9.3327E-01 5.3496E-01 -1.9141E+01 2.0891E+02 -1.3107E+03 5.1454E+03 -1.2343E+04 1.6382E+04 -9.2107E+03
S3 2.0300E-03 -6.8558E-01 1.0207E+01 -1.9786E+02 2.1421E+03 -1.4472E+04 5.8946E+04 -1.3255E+05 1.2532E+05
S4 -3.7857E-01 1.9355E+00 -2.9681E+00 -6.5059E+01 5.3442E+02 -2.1403E+03 4.8645E+03 -5.9534E+03 2.9887E+03
S5 -5.2603E-01 1.9288E+00 -6.6792E+00 1.0450E+01 7.3027E+00 -7.3283E+01 1.4576E+02 -1.1000E+02 1.4930E+01
S6 9.4990E-03 -8.5555E-01 5.3107E+00 -2.1231E+01 5.7074E+01 -9.9853E+01 1.0856E+02 -6.5223E+01 1.6152E+01
S7 2.1083E-01 -1.5856E-01 -1.3053E+00 5.5833E+00 -1.3126E+01 2.1743E+01 -2.4008E+01 1.5515E+01 -4.4264E+00
S8 -8.3201E-01 2.8924E+00 -9.1098E+00 1.7540E+01 -2.1035E+01 1.5799E+01 -6.9478E+00 1.5375E+00 -1.1423E-01
S9 -8.0867E-01 2.7221E+00 -8.9818E+00 1.8821E+01 -2.5020E+01 2.1020E+01 -1.0523E+01 2.7950E+00 -2.9392E-01
S10 -9.8931E-01 3.8188E+00 -1.5060E+01 3.8277E+01 -6.0735E+01 5.9806E+01 -3.5141E+01 1.1226E+01 -1.4964E+00
S11 -5.8300E-01 2.6963E+00 -9.0200E+00 1.7067E+01 -1.9397E+01 1.2489E+01 -3.7624E+00 9.5620E-02 1.4303E-01
S12 -2.4095E-01 1.6435E+00 -4.0218E+00 5.5798E+00 -4.9160E+00 2.7960E+00 -9.9044E-01 1.9771E-01 -1.6880E-02
S13 -8.0658E-01 2.6936E-02 1.9693E+00 -3.6025E+00 3.1541E+00 -1.5831E+00 4.8194E-01 -8.5720E-02 6.8660E-03
S14 -8.9744E-01 1.3361E+00 -1.2969E+00 8.4057E-01 -3.7159E-01 1.1069E-01 -2.1170E-02 2.3150E-03 -1.1000E-04
Table 2
Table 3 provide the effective focal length f1 to f7 of each lens in embodiment 1, optical imagery eyeglass group total effective focal length f, light Learn total length TTL (that is, distance from the center of the object side S1 of the first lens E1 to imaging surface S17 on optical axis) and maximum Angle of half field-of view HFOV.
f1(mm) -4.06 f6(mm) 2.03
f2(mm) 1.80 f7(mm) -3.27
f3(mm) -4.55 f(mm) 1.80
f4(mm) -28.23 TTL(mm) 4.23
f5(mm) 70.27 HFOV(°) 51.9
Table 3
Optical imagery eyeglass group in embodiment 1 meets：
F6/f2=1.13, wherein, f6 is the effective focal length of the 6th lens E6, and f2 is the effective focal length of the second lens E2；
F1/f=-2.26, wherein, f1 is the effective focal length of the first lens E1, and f is total effective coke of optical imagery eyeglass group Away from；
TTL/ImgH=1.85, wherein, the center that TTL is the object side S1 of the first lens E1 is to imaging surface S17 in optical axis On distance, ImgH be imaging surface S17 on effective pixel area diagonal line length half；
F/R13=2.41, wherein, f is total effective focal length of optical imagery eyeglass group, and R13 is the object side of the 7th lens E7 The radius of curvature of face S13；
(R3-R4)/(R3+R4)=2.23, wherein, R3 is the radius of curvature of the object side S3 of the second lens E2, R4 the The radius of curvature of the image side surface S4 of two lens E2；
F1/f2=-2.26, wherein, f1 is the effective focal length of the first lens E1, and f2 is the effective focal length of the second lens E2；
R13/R14=1.51, wherein, R13 is the radius of curvature of the object side S13 of the 7th lens E7, and R14 is the 7th lens The radius of curvature of the image side surface S14 of E7；
CT1/CT2=0.57, wherein, CT1 is the first lens E1 in the center thickness on optical axis, and CT2 is the second lens E2 In the center thickness on optical axis；
T12/T67=1.30, wherein, T12 be the spacing distance of the first lens E1 and the second lens E2 on optical axis, T67 For the spacing distance of the 6th lens E6 and the 7th lens E7 on optical axis；
CT6/CT7=1.75, wherein, CT6 is the 6th lens E6 in the center thickness on optical axis, and CT7 is the 7th lens E7 In the center thickness on optical axis；
F/ | f45 |=0.04, wherein, f is total effective focal length of optical imagery eyeglass group, and f45 is the 4th lens E4 and the The combined focal length of five lens E5；
∑ CT/ ∑ AT=1.77, wherein, ∑ CT is the first lens E1 to the 7th lens E7 thick respectively at the center on optical axis The sum of degree, ∑ AT are the sum of the spacing distance of two lens of arbitrary neighborhood on optical axis in the first lens E1 to the 7th lens E7；
F/CT6=5.13, wherein, f is total effective focal length of optical imagery eyeglass group, and CT6 is the 6th lens E6 in optical axis On center thickness.
Fig. 2A shows chromatic curve on the axis of the optical imagery eyeglass group of embodiment 1, represents the light of different wave length Deviate via the converging focal point after camera lens.Fig. 2 B show the astigmatism curve of the optical imagery eyeglass group of embodiment 1, represent son Noon curvature of the image and sagittal image surface bending.Fig. 2 C show the distortion curve of the optical imagery eyeglass group of embodiment 1, represent not With the distortion sizes values in the case of visual angle.Fig. 2 D show the ratio chromatism, curve of the optical imagery eyeglass group of embodiment 1, table Show deviation of the light via the different image heights after camera lens on imaging surface.A to Fig. 2 D is it is found that given by embodiment 1 according to fig. 2 Optical imagery eyeglass group can realize good image quality.
Embodiment 2
Referring to Fig. 3 to Fig. 4 D descriptions according to the optical imagery eyeglass group of the embodiment of the present application 2.The present embodiment and with In lower embodiment, for brevity, by clipped description similar to Example 1.Fig. 3 is shown according to the embodiment of the present application The structure diagram of 2 optical imagery eyeglass group.
As shown in figure 3, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side Sequentially include：First lens E1, diaphragm STO, the second lens E2, third lens E3, the 4th lens E4, the 5th lens E5, the 6th Lens E6, the 7th lens E7, optical filter E8 and imaging surface S17.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Second lens E2 has Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface.Third lens E3 has positive light coke, and object side S5 is Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.7th lens E7 has negative power, and object side S13 is convex surface, as Side S14 is concave surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 4 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 2 And circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 4
As shown in Table 4, in example 2, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 5 shows the high order term coefficient available for aspherical mirror each in embodiment 2, wherein, it is 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 4.8755E-01 -6.6047E-01 1.2973E+00 -2.9057E+00 5.6939E+00 -8.2704E+00 7.6150E+00 -3.9453E+00 8.6893E-01
S2 8.5456E-01 4.7978E-02 -9.4988E+00 1.0296E+02 -6.2454E+02 2.4132E+03 -5.7929E+03 7.7868E+03 -4.4746E+03
S3 -3.2240E-02 -4.8824E-01 5.1347E+00 -1.0942E+02 1.2657E+03 -9.2163E+03 4.0047E+04 -9.4945E+04 9.3609E+04
S4 -9.7533E-01 3.8601E+00 7.1487E+00 -1.9869E+02 1.2036E+03 -3.9482E+03 7.4492E+03 -7.5117E+03 3.0565E+03
S5 -2.5632E-01 -3.2912E+00 3.7348E+01 -2.2734E+02 8.6050E+02 -2.0433E+03 2.9108E+03 -2.2206E+03 6.6811E+02
S6 3.5087E-01 -4.5347E+00 2.6865E+01 -1.1338E+02 3.3184E+02 -6.3173E+02 7.4209E+02 -4.8740E+02 1.3660E+02
S7 2.9853E-01 4.6547E-01 -6.2887E+00 1.9530E+01 -3.8556E+01 7.1381E+01 -1.0588E+02 9.0233E+01 -3.1387E+01
S8 -9.0421E-01 3.6293E+00 -1.3464E+01 3.0002E+01 -4.1038E+01 3.4945E+01 -1.7789E+01 4.8833E+00 -5.4691E-01
S9 -7.8644E-01 3.0993E+00 -1.1402E+01 2.5963E+01 -3.6852E+01 3.2554E+01 -1.7133E+01 4.8693E+00 -5.7054E-01
S10 -1.2075E+00 6.7810E+00 -2.9659E+01 7.7853E+01 -1.2611E+02 1.2672E+02 -7.6354E+01 2.5175E+01 -3.4861E+00
S11 -8.2364E-01 4.8536E+00 -1.8318E+01 3.8816E+01 -4.8888E+01 3.5994E+01 -1.4395E+01 2.5224E+00 -5.3060E-02
S12 -3.8463E-01 1.9815E+00 -4.9310E+00 7.5781E+00 -7.5756E+00 4.8632E+00 -1.9163E+00 4.1974E-01 -3.9000E-02
S13 -7.6026E-01 -9.1650E-02 1.1861E+00 -2.3941E-01 -2.5838E+00 3.4882E+00 -1.9385E+00 5.0575E-01 -5.1210E-02
S14 -9.3085E-01 1.3150E+00 -1.1758E+00 6.9264E-01 -2.7916E-01 7.6982E-02 -1.3900E-02 1.4510E-03 -6.3000E-05
Table 5
Table 6 provide the effective focal length f1 to f7 of each lens in embodiment 2, optical imagery eyeglass group total effective focal length f, light Learn total length TTL and maximum angle of half field-of view HFOV.
f1(mm) -4.84 f6(mm) 1.93
f2(mm) 1.99 f7(mm) -2.37
f3(mm) 499.89 f(mm) 1.80
f4(mm) -5.83 TTL(mm) 4.09
f5(mm) 86.52 HFOV(°) 51.8
Table 6
Fig. 4 A show chromatic curve on the axis of the optical imagery eyeglass group of embodiment 2, represent the light of different wave length Deviate via the converging focal point after camera lens.Fig. 4 B show the astigmatism curve of the optical imagery eyeglass group of embodiment 2, represent son Noon curvature of the image and sagittal image surface bending.Fig. 4 C show the distortion curve of the optical imagery eyeglass group of embodiment 2, represent not With the distortion sizes values in the case of visual angle.Fig. 4 D show the ratio chromatism, curve of the optical imagery eyeglass group of embodiment 2, table Show deviation of the light via the different image heights after camera lens on imaging surface.According to Fig. 4 A to Fig. 4 D it is found that given by embodiment 2 Optical imagery eyeglass group can realize good image quality.
Embodiment 3
The optical imagery eyeglass group according to the embodiment of the present application 3 is described referring to Fig. 5 to Fig. 6 D.Fig. 5 shows root According to the structure diagram of the optical imagery eyeglass group of the embodiment of the present application 3.
As shown in figure 5, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side Sequentially include：First lens E1, diaphragm STO, the second lens E2, third lens E3, the 4th lens E4, the 5th lens E5, the 6th Lens E6, the 7th lens E7, optical filter E8 and imaging surface S17.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Second lens E2 has Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface.Third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.4th lens E4 has positive light coke, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.7th lens E7 has negative power, and object side S13 is convex surface, as Side S14 is concave surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 7 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 3 And circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 7
As shown in Table 7, in embodiment 3, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 8 shows the high order term coefficient available for aspherical mirror each in embodiment 3, wherein, it is 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 5.3524E-01 -7.5652E-01 1.5108E+00 -3.2973E+00 6.1082E+00 -8.3658E+00 7.2030E+00 -3.4612E+00 7.0722E-01
S2 8.4166E-01 5.8680E-01 -1.7912E+01 1.8028E+02 -1.0579E+03 3.8901E+03 -8.7460E+03 1.0904E+04 -5.7739E+03
S3 -1.9500E-03 -2.4881E-01 -2.1439E+00 1.5257E+01 1.1490E+01 -1.4636E+03 1.1121E+04 -3.4820E+04 4.0050E+04
S4 -7.0442E-01 4.5583E+00 -1.5813E+01 -3.2874E+01 5.8303E+02 -2.7423E+03 6.6329E+03 -8.2968E+03 4.1908E+03
S5 -5.5482E-01 2.8768E+00 -1.5518E+01 5.0657E+01 -6.9760E+01 -1.1690E+02 6.1895E+02 -9.1584E+02 4.8355E+02
S6 1.0655E-02 -5.2316E-01 2.1304E+00 -1.2516E+01 6.1377E+01 -1.7339E+02 2.7524E+02 -2.2924E+02 7.8006E+01
S7 2.1715E-01 4.7189E-01 -5.9968E+00 2.1726E+01 -4.8144E+01 7.9113E+01 -9.6669E+01 7.5664E+01 -2.7108E+01
S8 -7.3669E-01 2.4613E+00 -7.5722E+00 1.3526E+01 -1.4465E+01 9.2868E+00 -3.1535E+00 3.4391E-01 4.1909E-02
S9 -8.6423E-01 3.0241E+00 -1.0306E+01 2.2493E+01 -3.0974E+01 2.6755E+01 -1.3764E+01 3.7859E+00 -4.2027E-01
S10 -8.9756E-01 3.1968E+00 -1.3281E+01 3.5229E+01 -5.6650E+01 5.5412E+01 -3.1992E+01 9.9875E+00 -1.2972E+00
S11 -4.4628E-01 1.7613E+00 -6.3089E+00 1.2340E+01 -1.4222E+01 9.0957E+00 -2.5577E+00 -8.0470E-02 1.4266E-01
S12 -1.5977E-01 1.0731E+00 -2.3821E+00 2.5937E+00 -1.4035E+00 2.0737E-01 1.6051E-01 -8.4720E-02 1.2517E-02
S13 -7.1083E-01 -7.3646E-01 4.4089E+00 -9.2918E+00 1.2262E+01 -1.0983E+01 6.2875E+00 -2.0024E+00 2.6453E-01
S14 -9.3992E-01 1.4491E+00 -1.5125E+00 1.1007E+00 -5.5885E-01 1.9131E-01 -4.1570E-02 5.1120E-03 -2.7000E-04
Table 8
Table 9 provide the effective focal length f1 to f7 of each lens in embodiment 3, optical imagery eyeglass group total effective focal length f, light Learn total length TTL and maximum angle of half field-of view HFOV.
f1(mm) -4.87 f6(mm) 2.18
f2(mm) 2.02 f7(mm) -2.76
f3(mm) -10.00 f(mm) 1.86
f4(mm) 500.00 TTL(mm) 4.15
f5(mm) -17.47 HFOV(°) 50.9
Table 9
Fig. 6 A show chromatic curve on the axis of the optical imagery eyeglass group of embodiment 3, represent the light of different wave length Deviate via the converging focal point after camera lens.Fig. 6 B show the astigmatism curve of the optical imagery eyeglass group of embodiment 3, represent son Noon curvature of the image and sagittal image surface bending.Fig. 6 C show the distortion curve of the optical imagery eyeglass group of embodiment 3, represent not With the distortion sizes values in the case of visual angle.Fig. 6 D show the ratio chromatism, curve of the optical imagery eyeglass group of embodiment 3, table Show deviation of the light via the different image heights after camera lens on imaging surface.According to Fig. 6 A to Fig. 6 D it is found that given by embodiment 3 Optical imagery eyeglass group can realize good image quality.
Embodiment 4
The optical imagery eyeglass group according to the embodiment of the present application 4 is described referring to Fig. 7 to Fig. 8 D.Fig. 7 shows root According to the structure diagram of the optical imagery eyeglass group of the embodiment of the present application 4.
As shown in fig. 7, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side Sequentially include：First lens E1, diaphragm STO, the second lens E2, third lens E3, the 4th lens E4, the 5th lens E5, the 6th Lens E6, the 7th lens E7, optical filter E8 and imaging surface S17.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Second lens E2 has Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface.Third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.7th lens E7 has negative power, and object side S13 is convex surface, as Side S14 is concave surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 10 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 4 Material and circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 10
As shown in Table 10, in example 4, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 11 shows the high order term coefficient available for aspherical mirror each in embodiment 4, wherein, respectively 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 5.3324E-01 -7.3014E-01 1.3986E+00 -2.8937E+00 5.1830E+00 -7.0740E+00 6.0952E+00 -2.9140E+00 5.8817E-01
S2 8.3287E-01 6.6373E-01 -1.9636E+01 1.9869E+02 -1.1640E+03 4.2392E+03 -9.4039E+03 1.1548E+04 -6.0114E+03
S3 -2.0910E-02 -1.4443E-01 -6.1193E+00 7.7558E+01 -6.5328E+02 2.9519E+03 -5.9337E+03 -5.9269E+02 1.3108E+04
S4 -4.1148E-01 3.5420E+00 -2.1842E+01 6.8124E+01 -8.0629E+01 -2.6552E+02 1.2634E+03 -2.0459E+03 1.1821E+03
S5 -6.0511E-01 3.5193E+00 -2.1635E+01 9.8682E+01 -3.3755E+02 8.2273E+02 -1.3270E+03 1.2602E+03 -5.3068E+02
S6 -4.8770E-02 -1.5748E-01 1.0265E+00 -4.7417E+00 1.4088E+01 -2.4097E+01 2.3707E+01 -1.1615E+01 1.8011E+00
S7 1.7936E-01 1.0789E-01 -3.2527E+00 1.4799E+01 -4.0420E+01 7.2242E+01 -8.1022E+01 5.1838E+01 -1.4582E+01
S8 -7.5783E-01 2.8973E+00 -9.9304E+00 2.0453E+01 -2.6180E+01 2.1020E+01 -1.0061E+01 2.5609E+00 -2.5825E-01
S9 -8.4975E-01 2.9592E+00 -9.9575E+00 2.1155E+01 -2.8330E+01 2.3894E+01 -1.2020E+01 3.2203E+00 -3.4399E-01
S10 -8.4015E-01 2.0265E+00 -8.0408E+00 2.3300E+01 -4.0586E+01 4.2144E+01 -2.5376E+01 8.1507E+00 -1.0780E+00
S11 -3.4206E-01 1.0277E+00 -3.8023E+00 7.7315E+00 -9.7592E+00 7.5597E+00 -3.4247E+00 8.1766E-01 -7.1790E-02
S12 -6.6610E-02 9.3669E-01 -2.2878E+00 2.2212E+00 -4.6541E-01 -8.9079E-01 8.3600E-01 -2.9878E-01 4.0195E-02
S13 -5.7736E-01 -1.4721E+00 7.3412E+00 -1.4825E+01 1.7525E+01 -1.3079E+01 6.0485E+00 -1.5663E+00 1.7184E-01
S14 -9.3124E-01 1.4788E+00 -1.4750E+00 9.5045E-01 -3.9918E-01 1.0567E-01 -1.6120E-02 1.1120E-03 -7.0000E-06
Table 11
Table 12 provide the effective focal length f1 to f7 of each lens in embodiment 4, optical imagery eyeglass group total effective focal length f, Optics total length TTL and maximum angle of half field-of view HFOV.
f1(mm) -4.87 f6(mm) 2.07
f2(mm) 1.77 f7(mm) -2.80
f3(mm) -4.32 f(mm) 1.83
f4(mm) -35.23 TTL(mm) 4.14
f5(mm) -500.00 HFOV(°) 50.7
Table 12
Fig. 8 A show chromatic curve on the axis of the optical imagery eyeglass group of embodiment 4, represent the light of different wave length Deviate via the converging focal point after camera lens.Fig. 8 B show the astigmatism curve of the optical imagery eyeglass group of embodiment 4, represent son Noon curvature of the image and sagittal image surface bending.Fig. 8 C show the distortion curve of the optical imagery eyeglass group of embodiment 4, represent not With the distortion sizes values in the case of visual angle.Fig. 8 D show the ratio chromatism, curve of the optical imagery eyeglass group of embodiment 4, table Show deviation of the light via the different image heights after camera lens on imaging surface.According to Fig. 8 A to Fig. 8 D it is found that given by embodiment 4 Optical imagery eyeglass group can realize good image quality.
Embodiment 5
The optical imagery eyeglass group according to the embodiment of the present application 5 is described referring to Fig. 9 to Figure 10 D.Fig. 9 shows root According to the structure diagram of the optical imagery eyeglass group of the embodiment of the present application 5.
As shown in figure 9, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side Sequentially include：First lens E1, diaphragm STO, the second lens E2, third lens E3, the 4th lens E4, the 5th lens E5, the 6th Lens E6, the 7th lens E7, optical filter E8 and imaging surface S17.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Second lens E2 has Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface.Third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke, Its object side S11 is convex surface, and image side surface S12 is concave surface.7th lens E7 has positive light coke, and object side S13 is convex surface, as Side S14 is concave surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 13 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 5 Material and circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 13
As shown in Table 13, in embodiment 5, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 14 shows the high order term coefficient available for aspherical mirror each in embodiment 5, wherein, respectively Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 14
Table 15 provide the effective focal length f1 to f7 of each lens in embodiment 5, optical imagery eyeglass group total effective focal length f, Optics total length TTL and maximum angle of half field-of view HFOV.
f1(mm) -4.28 f6(mm) 3.29
f2(mm) 1.77 f7(mm) 501.63
f3(mm) -3.91 f(mm) 1.79
f4(mm) -86.34 TTL(mm) 4.24
f5(mm) 99.41 HFOV(°) 50.7
Table 15
Figure 10 A show chromatic curve on the axis of the optical imagery eyeglass group of embodiment 5, represent the light of different wave length Deviate via the converging focal point after camera lens.Figure 10 B show the astigmatism curve of the optical imagery eyeglass group of embodiment 5, represent Meridianal image surface is bent and sagittal image surface bending.Figure 10 C show the distortion curve of the optical imagery eyeglass group of embodiment 5, table Show the distortion sizes values in the case of different visual angles.Figure 10 D show that the ratio chromatism, of the optical imagery eyeglass group of embodiment 5 is bent Line represents deviation of the light via the different image heights after camera lens on imaging surface.According to Figure 10 A to Figure 10 D it is found that implementing Optical imagery eyeglass group given by example 5 can realize good image quality.
Embodiment 6
The optical imagery eyeglass group according to the embodiment of the present application 6 is described referring to Figure 11 to Figure 12 D.Figure 11 is shown According to the structure diagram of the optical imagery eyeglass group of the embodiment of the present application 6.
As shown in figure 11, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side Sequentially include：First lens E1, diaphragm STO, the second lens E2, third lens E3, the 4th lens E4, the 5th lens E5, the 6th Lens E6, the 7th lens E7, optical filter E8 and imaging surface S17.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Second lens E2 has Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface.Third lens E3 has negative power, and object side S5 is Concave surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.7th lens E7 has negative power, and object side S13 is convex surface, as Side S14 is concave surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 16 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 6 Material and circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 16
As shown in Table 16, in embodiment 6, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 17 shows the high order term coefficient available for aspherical mirror each in embodiment 6, wherein, respectively 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 5.2545E-01 -7.3796E-01 1.5551E+00 -3.5510E+00 6.7467E+00 -9.3914E+00 8.2452E+00 -4.0579E+00 8.5108E-01
S2 8.4076E-01 2.7797E-01 -1.4193E+01 1.5579E+02 -9.5618E+02 3.6251E+03 -8.3456E+03 1.0618E+04 -5.7257E+03
S3 -2.5670E-02 -2.1726E-01 -3.1047E+00 1.5647E+01 6.3188E+01 -2.0638E+03 1.4796E+04 -4.6676E+04 5.5312E+04
S4 -1.2236E-01 -3.3370E-02 4.9176E+00 -8.2597E+01 5.6556E+02 -2.2759E+03 5.4660E+03 -7.2082E+03 3.9352E+03
S5 -3.4631E-01 8.1537E-01 -5.8301E+00 3.5390E+01 -1.5889E+02 4.8066E+02 -8.7026E+02 8.4624E+02 -3.4413E+02
S6 -9.9150E-02 6.1982E-01 -5.2248E+00 1.9787E+01 -3.6698E+01 1.6735E+01 6.5282E+01 -1.1789E+02 6.0089E+01
S7 1.0331E-01 1.4781E+00 -1.0790E+01 3.5020E+01 -6.2981E+01 5.3008E+01 9.8922E+00 -5.1871E+01 2.6813E+01
S8 -8.2516E-01 3.7530E+00 -1.4483E+01 3.3281E+01 -4.7356E+01 4.2070E+01 -2.2431E+01 6.5150E+00 -7.8796E-01
S9 -8.4722E-01 3.1440E+00 -1.1153E+01 2.3554E+01 -2.9883E+01 2.3073E+01 -1.0308E+01 2.3345E+00 -1.8614E-01
S10 -7.9852E-01 1.7704E+00 -5.8106E+00 1.4078E+01 -2.0586E+01 1.7659E+01 -8.3825E+00 1.9201E+00 -1.4089E-01
S11 -3.1394E-01 1.1504E+00 -4.1724E+00 8.5481E+00 -1.2053E+01 1.1622E+01 -7.1321E+00 2.4682E+00 -3.5923E-01
S12 -1.1590E-02 9.8463E-01 -2.9620E+00 4.1322E+00 -3.7700E+00 2.5605E+00 -1.2302E+00 3.5210E-01 -4.3350E-02
S13 -3.8757E-01 -2.0060E+00 8.4559E+00 -1.7857E+01 2.3540E+01 -2.0042E+01 1.0524E+01 -3.0454E+00 3.6755E-01
S14 -8.1073E-01 1.1883E+00 -1.1480E+00 7.4025E-01 -3.1834E-01 8.7423E-02 -1.3970E-02 1.0370E-03 -1.2000E-05
Table 17
Table 18 provide the effective focal length f1 to f7 of each lens in embodiment 6, optical imagery eyeglass group total effective focal length f, Optics total length TTL and maximum angle of half field-of view HFOV.
f1(mm) -5.01 f6(mm) 2.12
f2(mm) 1.65 f7(mm) -2.83
f3(mm) -4.33 f(mm) 1.85
f4(mm) -12.09 TTL(mm) 4.20
f5(mm) 141.41 HFOV(°) 51.1
Table 18
Figure 12 A show chromatic curve on the axis of the optical imagery eyeglass group of embodiment 6, represent the light of different wave length Deviate via the converging focal point after camera lens.Figure 12 B show the astigmatism curve of the optical imagery eyeglass group of embodiment 6, represent Meridianal image surface is bent and sagittal image surface bending.Figure 12 C show the distortion curve of the optical imagery eyeglass group of embodiment 6, table Show the distortion sizes values in the case of different visual angles.Figure 12 D show that the ratio chromatism, of the optical imagery eyeglass group of embodiment 6 is bent Line represents deviation of the light via the different image heights after camera lens on imaging surface.According to Figure 12 A to Figure 12 D it is found that implementing Optical imagery eyeglass group given by example 6 can realize good image quality.
Embodiment 7
The optical imagery eyeglass group according to the embodiment of the present application 7 is described referring to Figure 13 to Figure 14 D.Figure 13 is shown According to the structure diagram of the optical imagery eyeglass group of the embodiment of the present application 7.
As shown in figure 13, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side Sequentially include：First lens E1, diaphragm STO, the second lens E2, third lens E3, the 4th lens E4, the 5th lens E5, the 6th Lens E6, the 7th lens E7, optical filter E8 and imaging surface S17.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Second lens E2 has Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface.Third lens E3 has negative power, and object side S5 is Concave surface, image side surface S6 are convex surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.7th lens E7 has negative power, and object side S13 is convex surface, as Side S14 is concave surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 19 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 7 Material and circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 19
As shown in Table 19, in embodiment 7, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 20 shows the high order term coefficient available for aspherical mirror each in embodiment 7, wherein, respectively 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 5.8361E-01 -1.0621E+00 2.8251E+00 -7.4685E+00 1.5142E+01 -2.1123E+01 1.8406E+01 -8.9875E+00 1.8690E+00
S2 9.2438E-01 7.2466E-01 -2.3149E+01 2.3547E+02 -1.3962E+03 5.2118E+03 -1.1958E+04 1.5295E+04 -8.3549E+03
S3 3.8094E-02 -3.1894E+00 8.4986E+01 -1.4259E+03 1.4175E+04 -8.6249E+04 3.1368E+05 -6.2537E+05 5.2402E+05
S4 -2.7271E-01 2.9736E-01 1.1973E+01 -1.5446E+02 8.7595E+02 -2.9472E+03 6.0111E+03 -6.8786E+03 3.3314E+03
S5 -5.4437E-01 2.6995E+00 -2.1754E+01 1.6045E+02 -8.6959E+02 3.0130E+03 -6.2135E+03 6.9484E+03 -3.2459E+03
S6 -4.0680E-02 -4.0061E-01 3.6500E+00 -1.9684E+01 6.8661E+01 -1.7499E+02 3.2022E+02 -3.4222E+02 1.5220E+02
S7 2.1327E-01 4.5073E-01 -7.6753E+00 4.4477E+01 -1.5811E+02 3.4008E+02 -4.2197E+02 2.7723E+02 -7.4577E+01
S8 -8.2267E-01 3.0023E+00 -1.0422E+01 2.2678E+01 -3.1465E+01 2.7760E+01 -1.4747E+01 4.2373E+00 -4.9973E-01
S9 -8.3141E-01 2.8580E+00 -8.9912E+00 1.6951E+01 -1.9054E+01 1.2651E+01 -4.4253E+00 5.3683E-01 4.2806E-02
S10 -9.0113E-01 3.1393E+00 -1.1584E+01 2.7928E+01 -4.2192E+01 3.9446E+01 -2.1843E+01 6.5113E+00 -8.0027E-01
S11 -5.4046E-01 2.5517E+00 -8.3997E+00 1.5747E+01 -1.8202E+01 1.2775E+01 -5.1172E+00 1.0065E+00 -5.7400E-02
S12 -2.6360E-01 1.8418E+00 -4.6101E+00 6.3274E+00 -5.2849E+00 2.7204E+00 -8.2695E-01 1.3180E-01 -7.9100E-03
S13 -8.1552E-01 -8.8500E-03 1.8338E+00 -2.9228E+00 1.5283E+00 3.9583E-01 -7.5162E-01 2.9377E-01 -3.9090E-02
S14 -9.0449E-01 1.4083E+00 -1.4252E+00 9.4441E-01 -4.1031E-01 1.1386E-01 -1.8830E-02 1.5770E-03 -4.0000E-05
Table 20
Table 21 provide the effective focal length f1 to f7 of each lens in embodiment 7, optical imagery eyeglass group total effective focal length f, Optics total length TTL and maximum angle of half field-of view HFOV.
Table 21
Figure 14 A show chromatic curve on the axis of the optical imagery eyeglass group of embodiment 7, represent the light of different wave length Deviate via the converging focal point after camera lens.Figure 14 B show the astigmatism curve of the optical imagery eyeglass group of embodiment 7, represent Meridianal image surface is bent and sagittal image surface bending.Figure 14 C show the distortion curve of the optical imagery eyeglass group of embodiment 7, table Show the distortion sizes values in the case of different visual angles.Figure 14 D show that the ratio chromatism, of the optical imagery eyeglass group of embodiment 7 is bent Line represents deviation of the light via the different image heights after camera lens on imaging surface.According to Figure 14 A to Figure 14 D it is found that implementing Optical imagery eyeglass group given by example 7 can realize good image quality.
Embodiment 8
The optical imagery eyeglass group according to the embodiment of the present application 8 is described referring to Figure 15 to Figure 16 D.Figure 15 is shown According to the structure diagram of the optical imagery eyeglass group of the embodiment of the present application 8.
As shown in figure 15, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side Sequentially include：First lens E1, diaphragm STO, the second lens E2, third lens E3, the 4th lens E4, the 5th lens E5, the 6th Lens E6, the 7th lens E7, optical filter E8 and imaging surface S17.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Second lens E2 has Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface.Third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is concave surface, and image side surface S8 is concave surface.The Five lens E5 have negative power, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.7th lens E7 has negative power, and object side S13 is convex surface, as Side S14 is concave surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 22 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 8 Material and circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 22
As shown in Table 22, in embodiment 8, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 23 shows the high order term coefficient available for aspherical mirror each in embodiment 8, wherein, respectively Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 23
Table 24 provide the effective focal length f1 to f7 of each lens in embodiment 8, optical imagery eyeglass group total effective focal length f, Optics total length TTL and maximum angle of half field-of view HFOV.
f1(mm) -5.27 f6(mm) 2.18
f2(mm) 1.74 f7(mm) -2.72
f3(mm) -4.36 f(mm) 1.84
f4(mm) -26.88 TTL(mm) 4.10
f5(mm) -701.50 HFOV(°) 50.4
Table 24
Figure 16 A show chromatic curve on the axis of the optical imagery eyeglass group of embodiment 8, represent the light of different wave length Deviate via the converging focal point after camera lens.Figure 16 B show the astigmatism curve of the optical imagery eyeglass group of embodiment 8, represent Meridianal image surface is bent and sagittal image surface bending.Figure 16 C show the distortion curve of the optical imagery eyeglass group of embodiment 8, table Show the distortion sizes values in the case of different visual angles.Figure 16 D show that the ratio chromatism, of the optical imagery eyeglass group of embodiment 8 is bent Line represents deviation of the light via the different image heights after camera lens on imaging surface.According to Figure 16 A to Figure 16 D it is found that implementing Optical imagery eyeglass group given by example 8 can realize good image quality.
Embodiment 9
The optical imagery eyeglass group according to the embodiment of the present application 9 is described referring to Figure 17 to Figure 18 D.Figure 17 shows According to the structure diagram of the optical imagery eyeglass group of the embodiment of the present application 9.
As shown in figure 17, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side Sequentially include：First lens E1, diaphragm STO, the second lens E2, third lens E3, the 4th lens E4, the 5th lens E5, the 6th Lens E6, the 7th lens E7, optical filter E8 and imaging surface S17.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Second lens E2 has Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface.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 convex surface, and image side surface S10 is concave surface.6th lens E6 has positive light coke, Its object side S11 is convex surface, and image side surface S12 is convex surface.7th lens E7 has negative power, and object side S13 is convex surface, as Side S14 is concave surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 25 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 9 Material and circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 25
As shown in Table 25, in embodiment 9, the object side of any one lens in the first lens E1 to the 7th lens E7 It is aspherical with image side surface.Table 26 shows the high order term coefficient available for aspherical mirror each in embodiment 9, wherein, respectively Aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 26
Table 27 provide the effective focal length f1 to f7 of each lens in embodiment 9, optical imagery eyeglass group total effective focal length f, Optics total length TTL and maximum angle of half field-of view HFOV.
f1(mm) -4.70 f6(mm) 2.13
f2(mm) 1.78 f7(mm) -2.93
f3(mm) -4.41 f(mm) 1.81
f4(mm) 27.85 TTL(mm) 4.14
f5(mm) -18.48 HFOV(°) 51.1
Table 27
Figure 18 A show chromatic curve on the axis of the optical imagery eyeglass group of embodiment 9, represent the light of different wave length Deviate via the converging focal point after camera lens.Figure 18 B show the astigmatism curve of the optical imagery eyeglass group of embodiment 9, represent Meridianal image surface is bent and sagittal image surface bending.Figure 18 C show the distortion curve of the optical imagery eyeglass group of embodiment 9, table Show the distortion sizes values in the case of different visual angles.Figure 18 D show that the ratio chromatism, of the optical imagery eyeglass group of embodiment 9 is bent Line represents deviation of the light via the different image heights after camera lens on imaging surface.According to Figure 18 A to Figure 18 D it is found that implementing Optical imagery eyeglass group given by example 9 can realize good image quality.
Embodiment 10
The optical imagery eyeglass group according to the embodiment of the present application 10 is described referring to Figure 19 to Figure 20 D.Figure 19 is shown According to the structure diagram of the optical imagery eyeglass group of the embodiment of the present application 10.
As shown in figure 19, according to the optical imagery eyeglass group of the application illustrative embodiments along optical axis by object side to image side Sequentially include：First lens E1, diaphragm STO, the second lens E2, third lens E3, the 4th lens E4, the 5th lens E5, the 6th Lens E6, the 7th lens E7, optical filter E8 and imaging surface S17.
First lens E1 has negative power, and object side S1 is concave surface, and image side surface S2 is concave surface.Second lens E2 has Positive light coke, object side S3 are convex surface, and image side surface S4 is convex surface.Third lens E3 has negative power, and object side S5 is Convex surface, image side surface S6 are concave surface.4th lens E4 has negative power, and object side S7 is convex surface, and image side surface S8 is concave surface.The Five lens E5 have positive light coke, and object side S9 is convex surface, and image side surface S10 is convex surface.6th lens E6 has positive light coke, Its object side S11 is concave surface, and image side surface S12 is convex surface.7th lens E7 has negative power, and object side S13 is convex surface, as Side S14 is concave surface.Optical filter E8 has object side S15 and image side surface S16.Light from object sequentially passes through each surface S1 extremely S16 is simultaneously ultimately imaged on imaging surface S17.
Table 28 shows surface type, radius of curvature, thickness, the material of each lens of the optical imagery eyeglass group of embodiment 10 Material and circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).
Table 28
As shown in Table 28, in embodiment 10, the object side of any one lens in the first lens E1 to the 7th lens E7 Face and image side surface are aspherical.Table 29 shows the high order term coefficient available for aspherical mirror each in embodiment 10, wherein, Each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Face number A4 A6 A8 A10 A12 A14 A16 A18 A20
S1 5.4443E-01 -7.5308E-01 1.4738E+00 -3.2289E+00 6.1501E+00 -8.7812E+00 7.8837E+00 -3.9259E+00 8.2416E-01
S2 8.4308E-01 5.7338E-01 -1.7988E+01 1.8349E+02 -1.0841E+03 3.9861E+03 -8.9259E+03 1.1055E+04 -5.7997E+03
S3 -1.4310E-02 -1.8729E-01 -4.9822E+00 6.5410E+01 -5.7671E+02 2.7194E+03 -6.0395E+03 2.1600E+03 8.0309E+03
S4 -5.7044E-01 5.5432E+00 -3.6087E+01 1.2925E+02 -2.1457E+02 -2.3365E+02 1.7654E+03 -3.0193E+03 1.7591E+03
S5 -6.9802E-01 4.8889E+00 -3.1289E+01 1.3921E+02 -4.3919E+02 9.5948E+02 -1.3877E+03 1.2103E+03 -4.8536E+02
S6 -6.0930E-02 -1.4588E-01 2.5747E+00 -1.9274E+01 7.7932E+01 -1.8487E+02 2.6076E+02 -2.0158E+02 6.5555E+01
S7 2.3449E-01 -5.4715E-01 1.5100E+00 -7.3650E+00 2.4160E+01 -4.6255E+01 5.2256E+01 -3.1616E+01 7.4886E+00
S8 -6.5474E-01 2.3007E+00 -7.5497E+00 1.4183E+01 -1.6084E+01 1.1201E+01 -4.4241E+00 8.0147E-01 -2.7950E-02
S9 -9.7383E-01 3.2471E+00 -1.0274E+01 2.1271E+01 -2.8032E+01 2.3226E+01 -1.1371E+01 2.9072E+00 -2.8399E-01
S10 -1.0531E+00 5.2730E+00 -2.4407E+01 6.7665E+01 -1.1259E+02 1.1378E+02 -6.8091E+01 2.2146E+01 -3.0141E+00
S11 -6.1146E-01 4.7308E+00 -2.1500E+01 5.2809E+01 -7.8283E+01 7.1498E+01 -3.9305E+01 1.1929E+01 -1.5301E+00
S12 -4.3849E-01 2.9009E+00 -8.1183E+00 1.2807E+01 -1.2367E+01 7.4753E+00 -2.7617E+00 5.7007E-01 -5.0320E-02
S13 -6.2815E-01 -1.7170E-02 1.6532E+00 -3.3001E+00 3.3030E+00 -2.0203E+00 7.8778E-01 -1.7949E-01 1.7818E-02
S14 -7.9297E-01 1.1702E+00 -1.1244E+00 6.9855E-01 -2.7873E-01 6.7576E-02 -8.5000E-03 2.4400E-04 3.5300E-05
Table 29
Table 30 provide the effective focal length f1 to f7 of each lens in embodiment 10, optical imagery eyeglass group total effective focal length f, Optics total length TTL and maximum angle of half field-of view HFOV.
f1(mm) -4.75 f6(mm) 2.48
f2(mm) 1.77 f7(mm) -2.66
f3(mm) -4.41 f(mm) 1.85
f4(mm) -59.39 TTL(mm) 4.23
f5(mm) 9.09 HFOV(°) 50.6
Table 30
Figure 20 A show chromatic curve on the axis of the optical imagery eyeglass group of embodiment 10, represent the light of different wave length Line deviates via the converging focal point after camera lens.Figure 20 B show the astigmatism curve of the optical imagery eyeglass group of embodiment 10, table Show meridianal image surface bending and sagittal image surface bending.Figure 20 C show the distortion curve of the optical imagery eyeglass group of embodiment 10, Represent the distortion sizes values in the case of different visual angles.Figure 20 D show the ratio chromatism, of the optical imagery eyeglass group of embodiment 10 Curve represents deviation of the light via the different image heights after camera lens on imaging surface.0A to Figure 20 D is it is found that reality according to fig. 2 Good image quality can be realized by applying the optical imagery eyeglass group given by example 10.
To sum up, embodiment 1 to embodiment 10 meets the relationship shown in table 31 respectively.
Table 31
The application also provides a kind of imaging device, and electronics photosensitive element can be photosensitive coupling element (CCD) or complementation Property matal-oxide semiconductor element (CMOS).Imaging device can be the independent imaging equipment of such as digital camera or The image-forming module being integrated on the mobile electronic devices such as mobile phone.The imaging device is equipped with optical imaging lens described above Piece group.
The preferred embodiment and the explanation to institute's application technology principle that above description is only the application.People in the art Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the specific combination of above-mentioned technical characteristic forms 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 The other technical solutions for arbitrarily combining and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein The technical solution that the technical characteristic of energy is replaced mutually and formed.

Claims (15)

1. optical imagery eyeglass group is sequentially included along optical axis by object side to image side：First lens, the second lens, third lens, 4th lens, the 5th lens, the 6th lens and the 7th lens,
It is characterized in that,
First lens have negative power, and object side and image side surface are concave surface；
Second lens have positive light coke；
The third lens have positive light coke or negative power；
4th lens have positive light coke or negative power；
5th lens have positive light coke or negative power, and object side is convex surface；
6th lens have positive light coke；
7th lens have positive light coke or negative power, and image side surface is concave surface；
The maximum angle of half field-of view HFOV of the optical imagery eyeglass group meets 50 ° of HFOV ＞.
2. optical imagery eyeglass group according to claim 1, which is characterized in that the effective focal length f1 of first lens with Total effective focal length f of the optical imagery eyeglass group meets -3.0 ＜ f1/f ＜ -2.0.
3. optical imagery eyeglass group according to claim 2, which is characterized in that the effective focal length f1 of first lens with The effective focal length f2 of second lens meets -3.5 ＜ f1/f2 ＜ -2.0.
4. optical imagery eyeglass group according to claim 3, which is characterized in that the effective focal length f6 of the 6th lens with The effective focal length f2 of second lens meets 0.8 ＜ f6/f2 ＜ 2.0.
5. optical imagery eyeglass group according to claim 1, which is characterized in that the optical imagery eyeglass group it is total effectively Focal length f and the combined focal length f45 of the 4th lens and the 5th lens meet f/ | f45 | ＜ 0.4.
6. optical imagery eyeglass group according to claim 1, which is characterized in that the object side of the 7th lens is convex Face；
Total effective focal length f of the optical imagery eyeglass group and the radius of curvature R 13 of the object side of the 7th lens meet 1.5 ＜ f/R13 ＜ 3.5.
7. optical imagery eyeglass group according to claim 6, which is characterized in that the curvature of the object side of the 7th lens Radius R13 and the radius of curvature R 14 of the image side surface of the 7th lens meet 1.0 ＜ R13/R14 ＜ 2.0.
8. optical imagery eyeglass group according to claim 1, which is characterized in that the curvature of the object side of second lens The radius of curvature R 4 of the image side surface of radius R3 and second lens meets 1.8 ＜ (R3-R4)/(R3+R4) ＜ 3.8.
9. optical imagery eyeglass group according to claim 1, which is characterized in that first lens to the 7th lens It is saturating respectively at arbitrary neighborhood two in the sum of center thickness on optical axis ∑ CT and first lens to the 7th lens The sum of spacing distance of the mirror on optical axis ∑ AT meets ∑ CT/ ∑s AT≤2.0.
10. optical imagery eyeglass group according to claim 9, which is characterized in that first lens are on the optical axis Center thickness CT1 and second lens meet 0.4 ＜ CT1/CT2 ＜ 1.0 in the center thickness CT2 on the optical axis.
11. optical imagery eyeglass group according to claim 9, which is characterized in that first lens and described second are thoroughly Spacing distance T12 of the mirror on the optical axis and the spacing distance of the 6th lens and the 7th lens on the optical axis T67 meets 1.0≤T12/T67≤1.5.
12. optical imagery eyeglass group according to claim 9, which is characterized in that the 6th lens are on the optical axis Center thickness CT6 and the 7th lens meet 1.0 ＜ CT6/CT7 ＜ 2.0 in the center thickness CT7 on the optical axis.
13. optical imagery eyeglass group according to claim 12, which is characterized in that the optical imagery eyeglass group always has It imitates focal length f and meets 2 ＜ f/CT6 ＜ 7 in the center thickness CT6 on the optical axis with the 6th lens.
14. optical imagery eyeglass group according to any one of claim 1 to 13, which is characterized in that first lens Object side imaging surface distance TTL on the optical axis and the optical imagery of the center to the optical imagery eyeglass group The half ImgH of effective pixel area diagonal line length meets 1.5 ＜ TTL/ImgH ＜ 2.5 on the imaging surface of lens set.
15. optical imagery eyeglass group is sequentially included along optical axis by object side to image side：First lens, the second lens, third are saturating Mirror, the 4th lens, the 5th lens, the 6th lens and the 7th lens,
It is characterized in that,
First lens have negative power, and object side and image side surface are concave surface；
Second lens have positive light coke；
The third lens have positive light coke or negative power；
4th lens have positive light coke or negative power；
5th lens have positive light coke or negative power, and object side is convex surface；
6th lens have positive light coke；
7th lens have positive light coke or negative power, and image side surface is concave surface；
Total effective focal length f of the optical imagery eyeglass group expires with the 6th lens in the center thickness CT6 on the optical axis 2 ＜ f/CT6 ＜ 7 of foot.
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