CN208334761U - Optical imaging system - Google Patents
Optical imaging system Download PDFInfo
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- CN208334761U CN208334761U CN201820518603.4U CN201820518603U CN208334761U CN 208334761 U CN208334761 U CN 208334761U CN 201820518603 U CN201820518603 U CN 201820518603U CN 208334761 U CN208334761 U CN 208334761U
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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, the 5th lens, the 6th lens and the 7th lens by object side to image side along optical axis.First lens have negative power；Second lens, the third lens, the 4th lens, the 5th lens and the 6th lens all have positive light coke or negative power；The object side of the image side surface of the third lens and the 6th lens is concave surface；7th lens have negative power, and image side surface is concave surface.The combined focal length f56 and the first lens of 5th lens and the 6th lens, the second lens, the third lens and the 4th lens combined focal length f1234 meet 2≤f56/f1234 < 6.
Description
Technical field
This application involves a kind of optical imaging systems, more specifically, this application involves a kind of optics including seven lens
Imaging system.
Background technique
With the diversified development of the portable electronic products such as such as smart phone, consumer is to portable electronic product institute
The requirement of subsidiary camera function is higher and higher, it is desirable to fine thing can be recorded in various scenes by portable electronic product
Object.This just to the matching used optical imaging system of portable electronic product in ultra-thin, miniaturization and high imaging effect etc.
More stringent requirements are proposed for aspect.
On the other hand, with for example photosensitive coupling element (CCD) or Complimentary Metal-Oxide semiconductor element (CMOS) etc.
The raising of common photosensitive element performance and the reduction of size, also to ultra-thin, the miniaturization, high picture of the optical imaging system to match
More stringent requirements are proposed for element etc..
Utility model content
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 lens, and the imaging lens are along optical axis by object side to picture
Side sequentially includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.Its
In, the first lens can have negative power；Second lens, the third lens, the 4th lens, the 5th lens and the 6th lens all have
Positive light coke or negative power；The object side of the image side surface of the third lens and the 6th lens can be concave surface；7th lens can have
There is negative power, image side surface can be concave surface.Wherein, the combined focal length f56 and the first lens of the 5th lens and the 6th lens,
The combined focal length f1234 of two lens, the third lens and the 4th lens can meet 2≤f56/f1234 < 6.
In one embodiment, the effective focal length f2 and third of total effective focal length f of optical imaging system, the second lens
The effective focal length f3 of lens can meet 2 < | f2/f |+| f3/f | < 4.5.
In one embodiment, the effective focal length f6 and the 7th lens of the effective focal length f5 of the 5th lens, the 6th lens
Effective focal length f7 can meet -1 < (1/f5+1/f6)/(1/f7) < 0.
In one embodiment, spacing distance T67 on optical axis of the 6th lens and the 7th lens, the 5th lens are in light
Center thickness CT5 and the 6th lens on axis can meet T67/ (CT5+CT6) < 2 in the center thickness CT6 on optical axis.
In one embodiment, the radius of curvature R 1, the curvature of the image side surface of the third lens of the object side of the first lens
The radius of curvature R 14 of the image side surface of the radius of curvature R 11 and the 7th lens of the object side of radius R6, the 6th lens can meet -2.5
< (R1+R6)/(R11+R14) < 0.5.
In one embodiment, the curvature of the image side surface of the radius of curvature R 5 and the third lens of the object side of the third lens
Radius R6 can meet 0 < (R5-R6)/(R5+R6) < 0.5.
In one embodiment, the radius of curvature R 9, the curvature of the image side surface of the 5th lens of the object side of the 5th lens
Total effective focal length f of radius R10 and optical imaging system can meet 0 < (| R10 |-| R9 |)/f < 1.5.
In one embodiment, the first lens are in the effective of center thickness CT1 and the first lens object side on optical axis
Radius SD11 can meet CT1/SD11 < 0.5.
In one embodiment, the first lens to the 7th lens are respectively at the sum of center thickness on optical axis ∑ CT and
One lens the sum of the spacing distance of two lens of arbitrary neighborhood on optical axis ∑ AT into the 7th lens can meet 1 < ∑ CT/ ∑ AT
< 3.5.
In one embodiment, the center of the object side of the first lens is to the imaging surface of optical imaging system on optical axis
Distance TTL and optical imaging system imaging surface on the half ImgH of effective pixel area diagonal line length can meet TTL/ImgH
< 1.6.
In one embodiment, the curvature of the object side of total effective focal length f and the 6th lens of optical imaging system half
Diameter R11 can meet -1 < f/R11 < 0.
On the other hand, this application provides such a optical imaging lens, the imaging lens along optical axis by object side extremely
Image side sequentially includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.
Wherein, the first lens can have negative power；Second lens, the third lens, the 4th lens, the 5th lens and the 6th lens have
There are positive light coke or negative power；The object side of the image side surface of the third lens and the 6th lens can be concave surface；7th lens can
With negative power, image side surface can be concave surface.Wherein, the first lens are in center thickness CT1 and the first lens object on optical axis
The effective radius SD11 of side can meet CT1/SD11 < 0.5.
Another aspect, this application provides such a optical imaging lens, the imaging lens along optical axis by object side extremely
Image side sequentially includes: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.
Wherein, the first lens can have negative power；Second lens, the third lens, the 4th lens, the 5th lens and the 6th lens have
There are positive light coke or negative power；The object side of the image side surface of the third lens and the 6th lens can be concave surface；7th lens can
With negative power, image side surface can be concave surface.Wherein, the center of the object side of the first lens to optical imaging system imaging
The half ImgH of effective pixel area diagonal line length can expire on the imaging surface of distance TTL and optical imaging system of the face on optical axis
Sufficient TTL/ImgH < 1.6.
The application uses 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 imaging system has ultra-thin, miniaturization, height
Image quality, high pixel such as match at least one beneficial effect with chip height.
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；
Figure 17 shows the structural schematic diagrams according to the optical imaging system of the embodiment of the present application 9；
Figure 18 A to Figure 18 D respectively illustrates chromatic curve on the axis of the optical imaging system of embodiment 9, astigmatism curve, abnormal
Varied curve and ratio chromatism, curve；
Figure 19 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 10；
Figure 20 A to Figure 20 D respectively illustrate chromatic curve on the axis of the optical imaging system of embodiment 10, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 21 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 11；
Figure 22 A to Figure 22 D respectively illustrate chromatic curve on the axis of the optical imaging system of embodiment 11, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 23 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 12；
Figure 24 A to Figure 24 D respectively illustrate chromatic curve on the axis of the optical imaging system of embodiment 12, astigmatism curve,
Distortion curve and ratio chromatism, curve；
Figure 25 shows the structural schematic diagram of the optical imaging system according to the embodiment of the present application 13；
Figure 26 A to Figure 26 D respectively illustrate chromatic curve on the axis of the optical imaging system of embodiment 13, astigmatism curve,
Distortion 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.In each lens, it is known as the lens close to the surface of object
Object side；In each lens, the image side surface of the lens is known as close to 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 seven lens with focal power,
That is, the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.This seven lens
Along optical axis by object side to image side sequential.
In the exemplary embodiment, the first lens can have negative power；Second lens have positive light coke or negative light
Focal power；The third lens have positive light coke or negative power, and image side surface can be concave surface；4th lens have positive light coke or negative
Focal power；5th lens have positive light coke or negative power；6th lens have positive light coke or negative power, object side
It can be concave surface；7th lens can have negative power, and image side surface can be concave surface.
In the exemplary embodiment, the object side of the first lens can be convex surface, and image side surface can be concave surface.
In the exemplary embodiment, the second lens can have a positive light coke, and at least one in object side and image side surface
A is convex surface.Optionally, the object side of the second lens is convex surface.
In the exemplary embodiment, the third lens can have negative power, and object side can be convex surface.
In the exemplary embodiment, at least one of the object side of the 5th lens and image side surface can be convex surface.It is optional
Ground, the image side surface of the 5th lens are convex surface.
In the exemplary embodiment, the optical imaging system of the application can meet 2≤f56/f1234 of conditional < 6,
In, f56 is the combined focal length of the 5th lens and the 6th lens, and f1234 is the first lens, the second lens, the third lens and the
The combined focal length of four lens.More specifically, f56 and f1234 can further meet 2.09≤f56/f1234≤5.50.Rationally divide
With focal power, be conducive to correct aberration, matching chip maintains camera lens miniaturization, while providing excellent imaging effect.
In the exemplary embodiment, the optical imaging system of the application can meet conditional TTL/ImgH < 1.6,
In, TTL is the center of 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
1.39≤TTL/ImgH≤1.50.Pass through effective picture on distance on the first lens object side to the axis of imaging surface of control and imaging surface
The ratio of the half of plain region diagonal line length, the characteristics of optical system ultrathin and high pixel may be implemented, are conducive to maintain light
The miniaturization of system, while guaranteeing the good imaging effect of optical system.
In the exemplary embodiment, the optical imaging system of the application can meet 2 < of conditional | f2/f |+| f3/f | <
4.5, wherein f is total effective focal length of optical imaging system, and f2 is the effective focal length of the second lens, and f3 is having for the third lens
Imitate focal length.More specifically, f, f2 and f3 can further meet 2.42≤| f2/f |+| f3/f |≤4.43.Reasonable distribution second is saturating
Mirror and the third lens focal power are conducive to correct color difference, reduce high-order spherical aberration, reduce the sensibility in central vision region.
In the exemplary embodiment, the optical imaging system of the application can meet -2.5 < of conditional (R1+R6)/(R11
+ R14) < 0.5, wherein R1 is the radius of curvature of the object side of the first lens, and R6 is the curvature half of the image side surface of the third lens
Diameter, R11 are the radius of curvature of the object side of the 6th lens, and R14 is the radius of curvature of the image side surface of the 7th lens.More specifically,
R1, R6, R11 and R14 can further meet -2.12≤(R1+R6)/(R11+R14)≤0.39.Meet -2.5 < (R1+ of conditional
R6)/(R11+R14) < 0.5, is conducive to balance system spherical aberration, coma and astigmatism.Meanwhile passing through the mutual of each lens surface
Effect distorts to reduce, and obtains the optical system of requirement up to specification.
In the exemplary embodiment, the optical imaging system of the application can meet -1 < of conditional (1/f5+1/f6)/
(1/f7) < 0, wherein f5 is the effective focal length of the 5th lens, and f6 is the effective focal length of the 6th lens, and f7 is having for the 7th lens
Imitate focal length.More specifically, f5, f6 and f7 can further meet -0.7 < (1/f5+1/f6)/(1/f7) < -0.2, for example, -
0.61≤(1/f5+1/f6)/(1/f7)≤-0.30.The light focus of the 5th lens of reasonable distribution, the 6th lens and the 7th lens
Degree can correct astigmatism, promote the imaging effect in peripheral field region, while be conducive to the chief ray angle of imaging system and chip
(CRA) is spent preferably to match.
In the exemplary embodiment, the optical imaging system of the application can meet conditional T67/ (CT5+CT6) < 2,
Wherein, T67 is the spacing distance of the 6th lens and the 7th lens on optical axis, and CT5 is that the 5th lens are thick in the center on optical axis
Degree, CT6 are the 6th lens in the center thickness on optical axis.More specifically, T67, CT5 and CT6 can further meet 0 < T67/
(CT5+CT6) 1.60 <, for example, 0.10≤T67/ (CT5+CT6)≤1.58.Meet conditional T67/ (CT5+CT6) < 2, has
Conducive to deflection of light is slowed down, increase image planes, to advantageously allow imaging effect of the optical system with hyposensitivity, high-quality
Fruit.
In the exemplary embodiment, the optical imaging system of the application can meet 1 < ∑ CT/ ∑ AT < 3.5 of conditional,
Wherein, ∑ CT is that respectively for the lens with focal power respectively at the sum of the center thickness on optical axis, ∑ AT is respectively with focal power
Spacing distance the sum of of two lens of arbitrary neighborhood on optical axis in lens.More specifically, ∑ CT and ∑ AT can further meet 1.3
< ∑ CT/ ∑ AT < 3.1, for example, 1.33≤CT/ ∑ AT≤3.04.Center thickness and interval by each lens of reasonable distribution
Distance, it is ensured that each lens are easy to process, form, the characteristic of assembling, and then are conducive to the batch production of imaging system.
In the optical system for the lens for having a focal power with seven, ∑ CT is that the first lens, the second lens, third are saturating
Mirror, the 4th lens, the 5th lens, the 6th lens and the 7th lens are respectively at the sum of the center thickness on optical axis；∑ AT is first
Spacing distance of the spacing distance, the second lens and the third lens of lens and the second lens on optical axis on optical axis, third are saturating
Spacing distance, the 5th lens of spacing distance, the 4th lens and the 5th lens on optical axis of mirror and the 4th lens on optical axis
With spacing distance and sixth lens and seventh lens spacing distance the sum of on optical axis of the 6th lens on optical axis.
In the exemplary embodiment, the optical imaging system of the application can meet 0 < of conditional (R5-R6)/(R5+R6)
< 0.5, wherein R5 is the radius of curvature of the object side of the third lens, and R6 is the radius of curvature of the image side surface of the third lens.More
Body, R5 and R6 can further meet 0.11≤(R5-R6)/(R5+R6)≤0.39.Reasonable distribution the third lens object side and picture
The radius of curvature of side is conducive to the spherical aberration and color difference of correcting imaging system, guarantees excellent imaging effect.
In the exemplary embodiment, the optical imaging system of the application can meet 0 < of conditional (| R10 |-| R9 |)/f
< 1.5, wherein R9 is the radius of curvature of the object side of the 5th lens, and R10 is the radius of curvature of the image side surface of the 5th lens, and f is
Total effective focal length of optical imaging system.More specifically, R9, R10 and f can further meet 0.15≤(| R10 |-| R9 |)/f≤
1.40.By adjusting the radius of curvature of the 5th lens object side and image side surface, can effectively improve imaging system coma and
Astigmatism.
In the exemplary embodiment, the optical imaging system of the application can meet conditional CT1/SD11 < 0.5,
In, CT1 is the first lens in the center thickness on optical axis, and SD11 is the effective radius of the object side of the first lens.More specifically,
CT1 and SD11 can further meet 0 < CT1/SD11 < 0.4, for example, 0.12≤CT1/SD11≤0.33.Pass through control first
Ratio between lens center thickness and the effective radius of the first lens object side, advantageously ensures that the good processing technology of eyeglass
Property.
In the exemplary embodiment, the optical imaging system of the application can meet -1 < f/R11 < 0 of conditional, wherein
F is total effective focal length of optical imaging system, and R11 is the radius of curvature of the object side of the 6th lens.More specifically, f and R11 into
One step can meet -0.87≤f/R11 < 0.By the total effective focal length and the 6th lens object side that control optical imaging system
Radius of curvature can effectively improve astigmatism and the distortion of system, improve image quality.
In the exemplary embodiment, optical imaging system may also include at least one diaphragm, to promote imaging system
Image quality.Any position between object side and image side can be set as needed in diaphragm, for example, diaphragm may be provided at object side
Between the first lens.
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 seven 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, can effectively the volume of reduction system, reduce the susceptibility of system and improve the machinability of system so that optical imagery system
System, which is more advantageous to, to be produced and processed and is applicable to portable electronic product.In addition, optical imaging system through the above configuration,
Can also have the beneficial effect such as ultra-thin, high imaging quality, high pixel, matching with chip height.
In presently filed embodiment, at least one of mirror 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 the case where
Under, the lens numbers for constituting optical imaging system can be changed, to obtain each result and 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
Lens.If desired, the optical imaging system 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: the first lens E1, the second lens E2, the 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 convex 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 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 concave surface.The
Five lens E5 have negative power, and object side S9 is concave 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 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 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, inverse that paraxial curvature c is upper 1 mean curvature radius R of table)；K be circular cone coefficient (
It has been provided in table 1)；Ai is the correction factor of aspherical i-th-th rank.The following table 2 give can be used for it is each aspherical in embodiment 1
The high-order coefficient A of mirror surface S1-S144、A6、A8、A10、A12、A14、A16And A18。
Table 2
Table 3 provides the effective focal length f1 to f7 of each lens in embodiment 1, total effective focal length f of optical imaging system, first
The center of the object side S1 of lens E1 is to imaging surface S17 effective pixel area on distance TTL and imaging surface S17 on optical axis
The half ImgH of diagonal line length.
| f1(mm) | -275.61 | f6(mm) | 4.93 |
| f2(mm) | 3.96 | f7(mm) | -4.88 |
| f3(mm) | -13.14 | f(mm) | 3.97 |
| f4(mm) | 14.84 | TTL(mm) | 4.90 |
| f5(mm) | -9.47 | ImgH(mm) | 3.38 |
Table 3
Optical imaging system in embodiment 1 meets:
F56/f1234=2.09, wherein f56 is the combined focal length of the 5th lens E5 and the 6th lens E6, f1234 the
The combined focal length of one lens E1, the second lens E2, the third lens E3 and the 4th lens E4；
TTL/ImgH=1.45, 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；
| f2/f |+| f3/f |=4.30, wherein f is total effective focal length of optical imaging system, and f2 is the second lens E2's
Effective focal length, f3 are the effective focal length of the third lens E3；
(R1+R6)/(R11+R14)=- 1.64, wherein R1 is the radius of curvature of the object side S1 of the first lens E1, and R6 is
The radius of curvature of the image side surface S6 of the third lens E3, R11 are the radius of curvature of the object side S11 of the 6th lens R6, and R14 is the 7th
The radius of curvature of the image side surface S14 of lens E7；
(1/f5+1/f6)/(1/f7)=- 0.47, wherein f5 is the effective focal length of the 5th lens E5, and f6 is the 6th lens
The effective focal length of E6, f7 are the effective focal length of the 7th lens E7；
T67/ (CT5+CT6)=0.99, wherein T67 is interval distance of the 6th lens E6 and the 7th lens E7 on optical axis
From CT5 is the 5th lens E5 in the center thickness on optical axis, and CT6 is the 6th lens E6 in the center thickness on optical axis；
∑ CT/ ∑ AT=1.60, 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 first lens E1 the sum of the spacing distance of two lens of arbitrary neighborhood on optical axis into the 7th lens E7；
(R5-R6)/(R5+R6)=0.11, wherein R5 is the radius of curvature of the object side S5 of the third lens E3, R6 the
The radius of curvature of the image side surface S6 of three lens E3；
(| R10 |-| R9 |)/f=0.97, wherein R9 is the radius of curvature of the object side S9 of the 5th lens E5, R10 the
The radius of curvature of the image side surface S10 of five lens E5, f are total effective focal length of optical imaging system；
CT1/SD11=0.12, wherein CT1 is the first lens E1 in the center thickness on optical axis, and SD11 is the first lens
The effective radius of the object side S1 of E1；
F/R11=-0.86, wherein f is total effective focal length of optical imaging system, and R11 is the object side of the 6th lens E6
The radius of curvature of S11.
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 system.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 perspectives
In the case of distortion sizes values.Fig. 2 D shows the ratio chromatism, curve of the optical imaging system of embodiment 1, indicates light warp
By the deviation of the different image heights after system on imaging surface.According to fig. 2 A to Fig. 2 D it is found that optics given by embodiment 1 at
As 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: the first lens E1, the second lens E2, the 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 convex 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 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 concave surface.The
Five lens E5 have negative power, and object side S9 is concave 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 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 7th lens E7
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 |
| S1 | -5.1036E-02 | 9.9180E-02 | -6.3040E-02 | 2.4530E-02 | -1.5577E-03 | -1.1688E-03 | 0.0000E+00 | 0.0000E+00 |
| S2 | -1.2473E-01 | -5.7649E-02 | 2.9558E-01 | -2.9699E-01 | 1.4898E-01 | -3.1532E-02 | 0.0000E+00 | 0.0000E+00 |
| S3 | 7.9496E-02 | -1.7292E-01 | 8.2352E-02 | -2.6336E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 3.8552E-01 | -4.2695E-01 | 6.2989E-02 | 1.1083E-01 | -6.1769E-02 | 1.0713E-02 | 0.0000E+00 | 0.0000E+00 |
| S5 | 2.9971E-01 | -1.0935E+00 | 1.5397E+00 | -1.2362E+00 | 5.3453E-01 | -8.3947E-02 | 0.0000E+00 | 0.0000E+00 |
| S6 | -1.3346E-01 | 4.6192E-01 | -2.0273E+00 | 3.5591E+00 | -3.0110E+00 | 1.0440E+00 | 0.0000E+00 | 0.0000E+00 |
| S7 | 1.6397E-01 | 1.1069E-01 | -2.4322E-01 | -8.1796E-01 | 2.3942E+00 | -1.7274E+00 | 0.0000E+00 | 0.0000E+00 |
| S8 | 8.3266E-02 | 2.1246E-02 | 3.3883E-01 | -8.1247E-01 | 1.6203E+00 | -1.7587E+00 | 0.0000E+00 | 0.0000E+00 |
| S9 | 6.1094E-02 | -5.2991E-02 | 7.9953E-01 | -2.2720E+00 | 3.3349E+00 | -1.9439E+00 | 0.0000E+00 | 0.0000E+00 |
| S10 | -5.0775E-01 | 2.4787E+00 | -6.2702E+00 | 1.0089E+01 | -9.0190E+00 | 3.3221E+00 | 0.0000E+00 | 0.0000E+00 |
| S11 | -7.3717E-01 | 3.2602E+00 | -8.9629E+00 | 1.7058E+01 | -2.0623E+01 | 1.5094E+01 | -6.3443E+00 | 1.2376E+00 |
| S12 | -6.3245E-02 | -6.6564E-02 | 7.4066E-01 | -1.9625E+00 | 2.9579E+00 | -2.4073E+00 | 9.8307E-01 | -1.5935E-01 |
| S13 | -3.6365E-01 | 2.3054E-01 | -1.2014E-01 | 5.0059E-02 | -1.3730E-02 | 2.2569E-03 | -2.0171E-04 | 7.5435E-06 |
| S14 | -1.7883E-01 | 1.0934E-01 | -5.3095E-02 | 1.6870E-02 | -3.3629E-03 | 3.8919E-04 | -2.1884E-05 | 3.5628E-07 |
Table 5
Table 6 provides the effective focal length f1 to f7 of each lens in embodiment 2, total effective focal length f of optical imaging system, first
The center of the object side S1 of lens E1 is to imaging surface S17 effective pixel area on distance TTL and imaging surface S17 on optical axis
The half ImgH of diagonal line length.
| f1(mm) | -9.85 | f6(mm) | 5.79 |
| f2(mm) | 3.32 | f7(mm) | -5.06 |
| f3(mm) | -9.66 | f(mm) | 3.75 |
| f4(mm) | 5.14 | TTL(mm) | 4.70 |
| f5(mm) | -10.24 | ImgH(mm) | 3.22 |
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 system.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 perspectives
In the case of distortion sizes values.Fig. 4 D shows the ratio chromatism, curve of the optical imaging system of embodiment 2, indicates light warp
By the deviation of the different image heights after system on imaging surface.According to Fig. 4 A to Fig. 4 D it is found that optics given by embodiment 2 at
As 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: the first lens E1, the second lens E2, the 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 convex 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 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 concave surface.The
Five lens E5 have negative power, and object side S9 is concave 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 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 7th lens E7
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 |
| S1 | -6.0469E-02 | 8.0459E-02 | -3.9500E-03 | -3.6450E-02 | 2.8983E-02 | -7.2876E-03 | 0.0000E+00 | 0.0000E+00 |
| S2 | -1.6390E-01 | 2.2669E-02 | 2.3945E-01 | -3.0206E-01 | 1.7745E-01 | -4.2939E-02 | 0.0000E+00 | 0.0000E+00 |
| S3 | 5.2639E-02 | -8.4380E-02 | -7.7511E-03 | 2.9541E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 3.5492E-01 | -3.1106E-01 | -2.1953E-01 | 4.6367E-01 | -2.7488E-01 | 6.0482E-02 | 0.0000E+00 | 0.0000E+00 |
| S5 | 2.3776E-01 | -7.0185E-01 | 6.1012E-01 | -6.2523E-02 | -2.1263E-01 | 1.0008E-01 | 0.0000E+00 | 0.0000E+00 |
| S6 | -1.5164E-01 | 4.6193E-01 | -1.5916E+00 | 2.4903E+00 | -1.9563E+00 | 6.3906E-01 | 0.0000E+00 | 0.0000E+00 |
| S7 | 1.3867E-01 | 2.6715E-02 | 1.1207E-01 | -1.0300E+00 | 1.7387E+00 | -9.9828E-01 | 0.0000E+00 | 0.0000E+00 |
| S8 | 7.6425E-02 | 4.5213E-02 | 1.6506E-01 | -3.7955E-01 | 6.5006E-01 | -7.0390E-01 | 0.0000E+00 | 0.0000E+00 |
| S9 | 5.7478E-02 | 9.5467E-02 | 4.8182E-02 | -3.6850E-01 | 7.9399E-01 | -5.9530E-01 | 0.0000E+00 | 0.0000E+00 |
| S10 | -5.2602E-01 | 2.6836E+00 | -6.8906E+00 | 1.0421E+01 | -8.2597E+00 | 2.6247E+00 | 0.0000E+00 | 0.0000E+00 |
| S11 | -7.4335E-01 | 3.3248E+00 | -8.9482E+00 | 1.5149E+01 | -1.5546E+01 | 9.7528E+00 | -3.8154E+00 | 7.8787E-01 |
| S12 | -4.3977E-02 | -3.4642E-02 | 4.2942E-01 | -1.0501E+00 | 1.4192E+00 | -1.0333E+00 | 3.8009E-01 | -5.6099E-02 |
| S13 | -3.0238E-01 | 1.7992E-01 | -8.3875E-02 | 2.9178E-02 | -6.5476E-03 | 8.8049E-04 | -6.4574E-05 | 1.9865E-06 |
| S14 | -1.4828E-01 | 8.5166E-02 | -3.8878E-02 | 1.1855E-02 | -2.3457E-03 | 2.8257E-04 | -1.8279E-05 | 4.7383E-07 |
Table 8
Table 9 provides the effective focal length f1 to f7 of each lens in embodiment 3, total effective focal length f of optical imaging system, first
The center of the object side S1 of lens E1 is to imaging surface S17 effective pixel area on distance TTL and imaging surface S17 on optical axis
The half ImgH of diagonal line length.
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 system.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 perspectives
In the case of distortion sizes values.Fig. 6 D shows the ratio chromatism, curve of the optical imaging system of embodiment 3, indicates light warp
By the deviation of the different image heights after system on imaging surface.According to Fig. 6 A to Fig. 6 D it is found that optics given by embodiment 3 at
As 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: the first lens E1, the second lens E2, the 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 convex 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 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 concave surface.The
Five lens E5 have negative power, and object side S9 is concave 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 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 7th lens E7
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 |
| S1 | -4.9529E-02 | 5.1247E-02 | 2.0939E-02 | -4.4687E-02 | 2.6484E-02 | -5.6218E-03 | 0.0000E+00 | 0.0000E+00 |
| S2 | -1.3449E-01 | -3.9103E-02 | 2.9206E-01 | -3.1904E-01 | 1.6822E-01 | -3.6360E-02 | 0.0000E+00 | 0.0000E+00 |
| S3 | 3.9612E-02 | -6.2997E-02 | -1.8279E-02 | 5.3656E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 3.4855E-01 | -2.6521E-01 | -3.2248E-01 | 5.5572E-01 | -3.0430E-01 | 6.0285E-02 | 0.0000E+00 | 0.0000E+00 |
| S5 | 2.1572E-01 | -5.2024E-01 | 1.3754E-01 | 4.5625E-01 | -4.4990E-01 | 1.2944E-01 | 0.0000E+00 | 0.0000E+00 |
| S6 | -1.7350E-01 | 6.0030E-01 | -1.8691E+00 | 2.7076E+00 | -1.9362E+00 | 5.5916E-01 | 0.0000E+00 | 0.0000E+00 |
| S7 | 1.1676E-01 | 6.3717E-02 | 4.2195E-02 | -8.0747E-01 | 1.3272E+00 | -7.0221E-01 | 0.0000E+00 | 0.0000E+00 |
| S8 | 7.1690E-02 | -1.6510E-02 | 4.1793E-01 | -9.0811E-01 | 1.2000E+00 | -8.0273E-01 | 0.0000E+00 | 0.0000E+00 |
| S9 | 4.9986E-02 | 1.1774E-01 | -1.1351E-01 | 2.0966E-01 | -1.9691E-01 | 6.8887E-02 | 0.0000E+00 | 0.0000E+00 |
| S10 | -4.6492E-01 | 2.1983E+00 | -5.1618E+00 | 7.2777E+00 | -5.4336E+00 | 1.6347E+00 | 0.0000E+00 | 0.0000E+00 |
| S11 | -6.5707E-01 | 2.6301E+00 | -6.2808E+00 | 9.1949E+00 | -7.4179E+00 | 2.7979E+00 | -2.2239E-01 | -8.0521E-02 |
| S12 | -3.1144E-02 | -1.1015E-01 | 5.7193E-01 | -1.1698E+00 | 1.3686E+00 | -8.7887E-01 | 2.8859E-01 | -3.8320E-02 |
| S13 | -2.9394E-01 | 1.6401E-01 | -7.2986E-02 | 2.5406E-02 | -5.8190E-03 | 8.0185E-04 | -6.0254E-05 | 1.8982E-06 |
| S14 | -1.3651E-01 | 6.9468E-02 | -2.7904E-02 | 7.3157E-03 | -1.2064E-03 | 1.1629E-04 | -5.5032E-06 | 7.7640E-08 |
Table 11
Table 12 provides the effective focal length f1 to f7 of each lens in embodiment 4, total effective focal length f of optical imaging system,
The center of the object side S1 of one lens E1 to the effective pixel region on distance TTL and imaging surface S17 on optical axis imaging surface S17
The half ImgH of domain diagonal line length.
| f1(mm) | -11.22 | f6(mm) | 6.37 |
| f2(mm) | 3.48 | f7(mm) | -5.08 |
| f3(mm) | -8.91 | f(mm) | 4.05 |
| f4(mm) | 5.35 | TTL(mm) | 5.00 |
| f5(mm) | -11.32 | ImgH(mm) | 3.48 |
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 system.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 perspectives
In the case of distortion sizes values.Fig. 8 D shows the ratio chromatism, curve of the optical imaging system of embodiment 4, indicates light warp
By the deviation of the different image heights after system on imaging surface.According to Fig. 8 A to Fig. 8 D it is found that optics given by embodiment 4 at
As 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: the first lens E1, the second lens E2, the 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 convex 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 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 concave surface.The
Five lens E5 have negative power, and object side S9 is concave 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 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 7th lens E7
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.
Table 14
Table 15 provides the effective focal length f1 to f7 of each lens in embodiment 5, total effective focal length f of optical imaging system,
The center of the object side S1 of one lens E1 to the effective pixel region on distance TTL and imaging surface S17 on optical axis imaging surface S17
The half ImgH of domain diagonal line length.
| f1(mm) | -11.21 | f6(mm) | 6.24 |
| f2(mm) | 3.51 | f7(mm) | -5.20 |
| f3(mm) | -8.61 | f(mm) | 4.05 |
| f4(mm) | 5.37 | TTL(mm) | 5.10 |
| f5(mm) | -12.07 | ImgH(mm) | 3.48 |
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 system.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 in the case of visual angle.Figure 10 D shows the ratio chromatism, curve of the optical imaging system of embodiment 5, indicates
Light via the different image heights after system on imaging surface deviation.According to Figure 10 A to Figure 10 D it is found that given by embodiment 5
Optical 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: the first lens E1, the second lens E2, the 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 convex 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 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 concave surface.The
Five lens E5 have negative power, and object side S9 is concave 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 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 7th lens E7
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 |
| S1 | -2.8468E-02 | 3.5684E-03 | 6.0853E-02 | -6.3738E-02 | 3.1313E-02 | -6.1435E-03 | 0.0000E+00 | 0.0000E+00 |
| S2 | -8.1688E-02 | -1.7221E-01 | 4.2211E-01 | -3.8440E-01 | 1.8212E-01 | -3.6471E-02 | 0.0000E+00 | 0.0000E+00 |
| S3 | 2.8426E-02 | -8.6560E-02 | 3.3925E-02 | -1.0734E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 2.9931E-01 | -2.1350E-01 | -2.0647E-01 | 3.3713E-01 | -1.6978E-01 | 3.0656E-02 | 0.0000E+00 | 0.0000E+00 |
| S5 | 1.5724E-01 | -2.7821E-01 | -1.2570E-01 | 4.4984E-01 | -2.9927E-01 | 6.6242E-02 | 0.0000E+00 | 0.0000E+00 |
| S6 | -1.6574E-01 | 4.7694E-01 | -1.3467E+00 | 1.6963E+00 | -1.0115E+00 | 2.3716E-01 | 0.0000E+00 | 0.0000E+00 |
| S7 | 5.8777E-02 | 8.7109E-02 | -1.6708E-01 | 5.6812E-02 | 1.1122E-01 | -8.4023E-02 | 0.0000E+00 | 0.0000E+00 |
| S8 | 5.2887E-02 | -1.1217E-02 | 2.8052E-01 | -3.6792E-01 | 2.7034E-01 | -1.4415E-01 | 0.0000E+00 | 0.0000E+00 |
| S9 | 3.0614E-02 | 1.2755E-01 | -2.1641E-03 | -9.8690E-02 | 4.0577E-02 | 9.0290E-03 | 0.0000E+00 | 0.0000E+00 |
| S10 | -2.8894E-01 | 1.0718E+00 | -1.6771E+00 | 1.6979E+00 | -1.0040E+00 | 2.5724E-01 | 0.0000E+00 | 0.0000E+00 |
| S11 | -4.4732E-01 | 1.2425E+00 | -2.0163E+00 | 2.0034E+00 | -9.3377E-01 | -3.1742E-02 | 1.9626E-01 | -5.1912E-02 |
| S12 | -7.1463E-02 | 5.7300E-02 | -3.2432E-02 | 5.8307E-02 | -9.6518E-02 | 9.1924E-02 | -3.9509E-02 | 6.0555E-03 |
| S13 | -3.0024E-01 | 1.5989E-01 | -6.2567E-02 | 1.8216E-02 | -3.4001E-03 | 3.6662E-04 | -1.9840E-05 | 3.6744E-07 |
| S14 | -1.3474E-01 | 6.4286E-02 | -2.2667E-02 | 5.1432E-03 | -7.1166E-04 | 5.2592E-05 | -1.2370E-06 | -3.5609E-08 |
Table 17
Table 18 provides the effective focal length f1 to f7 of each lens in embodiment 6, total effective focal length f of optical imaging system,
The center of the object side S1 of one lens E1 to the effective pixel region on distance TTL and imaging surface S17 on optical axis imaging surface S17
The half ImgH of domain diagonal line length.
| f1(mm) | -11.97 | f6(mm) | 6.37 |
| f2(mm) | 3.61 | f7(mm) | -5.38 |
| f3(mm) | -8.79 | f(mm) | 4.10 |
| f4(mm) | 5.64 | TTL(mm) | 5.20 |
| f5(mm) | -13.32 | ImgH(mm) | 3.52 |
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 system.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 in the case of visual angle.Figure 12 D shows the ratio chromatism, curve of the optical imaging system of embodiment 6, indicates
Light via the different image heights after system on imaging surface deviation.According to Figure 12 A to Figure 12 D it is found that given by embodiment 6
Optical 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: the first lens E1, the second lens E2, the 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 convex 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.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 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 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 7th lens E7
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 |
| S1 | -2.4951E-02 | -6.9372E-03 | 7.2952E-02 | -7.0714E-02 | 3.3132E-02 | -6.2855E-03 | 0.0000E+00 | 0.0000E+00 |
| S2 | -7.8811E-02 | -1.8343E-01 | 4.3925E-01 | -3.9641E-01 | 1.8564E-01 | -3.6739E-02 | 0.0000E+00 | 0.0000E+00 |
| S3 | 2.3533E-02 | -7.6683E-02 | 2.5708E-02 | -7.9655E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 2.8908E-01 | -1.7118E-01 | -2.8030E-01 | 4.0182E-01 | -1.9751E-01 | 3.5373E-02 | 0.0000E+00 | 0.0000E+00 |
| S5 | 1.4108E-01 | -2.2455E-01 | -2.0514E-01 | 5.0875E-01 | -3.1910E-01 | 6.8025E-02 | 0.0000E+00 | 0.0000E+00 |
| S6 | -1.6920E-01 | 4.7177E-01 | -1.2502E+00 | 1.5173E+00 | -8.8233E-01 | 2.0258E-01 | 0.0000E+00 | 0.0000E+00 |
| S7 | 5.7648E-02 | 7.2904E-02 | -9.9908E-02 | -4.3899E-02 | 1.7303E-01 | -9.5362E-02 | 0.0000E+00 | 0.0000E+00 |
| S8 | 4.5527E-02 | -3.3700E-03 | 2.1509E-01 | -2.5049E-01 | 1.8209E-01 | -1.1000E-01 | 0.0000E+00 | 0.0000E+00 |
| S9 | 2.9142E-02 | 1.0939E-01 | 2.4966E-02 | -9.2292E-02 | 1.4889E-02 | 2.1988E-02 | 0.0000E+00 | 0.0000E+00 |
| S10 | -2.6838E-01 | 9.6140E-01 | -1.4538E+00 | 1.4373E+00 | -8.2212E-01 | 2.0133E-01 | 0.0000E+00 | 0.0000E+00 |
| S11 | -4.1363E-01 | 1.1141E+00 | -1.7682E+00 | 1.6809E+00 | -6.8594E-01 | -1.2564E-01 | 2.0866E-01 | -5.2465E-02 |
| S12 | -6.1424E-02 | 5.5901E-02 | -6.2183E-02 | 1.1496E-01 | -1.4500E-01 | 1.0755E-01 | -3.9147E-02 | 5.3499E-03 |
| S13 | -3.1227E-01 | 1.6885E-01 | -6.5908E-02 | 1.9121E-02 | -3.6027E-03 | 3.9981E-04 | -2.3047E-05 | 4.9998E-07 |
| S14 | -1.4606E-01 | 7.5124E-02 | -2.8411E-02 | 7.1422E-03 | -1.1608E-03 | 1.1503E-04 | -6.0891E-06 | 1.2441E-07 |
Table 20
Table 21 provides the effective focal length f1 to f7 of each lens in embodiment 7, total effective focal length f of optical imaging system,
The center of the object side S1 of one lens E1 to the effective pixel region on distance TTL and imaging surface S17 on optical axis imaging surface S17
The half ImgH of domain diagonal line length.
| f1(mm) | -12.25 | f6(mm) | 6.05 |
| f2(mm) | 3.64 | f7(mm) | -5.17 |
| f3(mm) | -8.54 | f(mm) | 4.10 |
| f4(mm) | 5.59 | TTL(mm) | 5.25 |
| f5(mm) | -13.61 | ImgH(mm) | 3.53 |
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 system.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 in the case of visual angle.Figure 14 D shows the ratio chromatism, curve of the optical imaging system of embodiment 7, indicates
Light via the different image heights after system on imaging surface deviation.According to Figure 14 A to Figure 14 D it is found that given by embodiment 7
Optical 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: the first lens E1, the second lens E2, the 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 convex 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 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 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 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 7th lens E7
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.
Table 23
Table 24 provides the effective focal length f1 to f7 of each lens in embodiment 8, total effective focal length f of optical imaging system,
The center of the object side S1 of one lens E1 to the effective pixel region on distance TTL and imaging surface S17 on optical axis imaging surface S17
The half ImgH of domain diagonal line length.
| f1(mm) | -13.63 | f6(mm) | 5.98 |
| f2(mm) | 3.62 | f7(mm) | -4.63 |
| f3(mm) | -10.91 | f(mm) | 3.93 |
| f4(mm) | 5.90 | TTL(mm) | 4.90 |
| f5(mm) | -12.00 | ImgH(mm) | 3.37 |
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 system.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 in the case of visual angle.Figure 16 D shows the ratio chromatism, curve of the optical imaging system of embodiment 8, indicates
Light via the different image heights after system on imaging surface deviation.According to Figure 16 A to Figure 16 D it is found that given by embodiment 8
Optical imaging system can be realized good image quality.
Embodiment 9
The optical imaging system according to the embodiment of the present application 9 is described referring to Figure 17 to Figure 18 D.Figure 17 shows roots
According to the structural schematic diagram of the optical imaging system of the embodiment of the present application 9.
As shown in figure 17, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes: the first lens E1, the second lens E2, the 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 convex 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.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 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 25 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 9
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 25
As shown in Table 25, in embodiment 9, the object side of any one lens of the first lens E1 into the 7th lens E7
It is aspherical with image side surface.Table 26 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 9, 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 |
| S1 | -9.5866E-03 | 5.2719E-03 | 5.1820E-03 | -3.2452E-03 | 6.5586E-04 | -4.4698E-05 | 0.0000E+00 | 0.0000E+00 |
| S2 | 1.4471E-01 | -2.7102E-01 | 1.3216E-01 | -2.1324E-02 | 5.0410E-04 | -1.7142E-04 | 0.0000E+00 | 0.0000E+00 |
| S3 | 1.7286E-01 | -2.8637E-01 | 1.4821E-01 | -3.0929E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 1.1279E-01 | -6.9714E-02 | 5.8745E-02 | 2.7215E-03 | -2.9683E-02 | 8.5912E-03 | 0.0000E+00 | 0.0000E+00 |
| S5 | 1.1644E-01 | -3.3036E-01 | 2.7339E-01 | -7.9918E-02 | 4.2495E-03 | 9.0397E-04 | 0.0000E+00 | 0.0000E+00 |
| S6 | -6.0775E-02 | 9.4675E-02 | -2.4607E-01 | 2.2687E-01 | -6.3796E-02 | 2.5335E-03 | 0.0000E+00 | 0.0000E+00 |
| S7 | 1.4680E-01 | 1.9456E-02 | 3.6645E-01 | -9.7511E-01 | 1.1287E+00 | -5.2173E-01 | 0.0000E+00 | 0.0000E+00 |
| S8 | 4.9214E-02 | 3.5351E-02 | -1.2087E-01 | 5.5527E-01 | -7.5551E-01 | 2.5598E-01 | 0.0000E+00 | 0.0000E+00 |
| S9 | -3.8639E-02 | 1.1880E-01 | -3.5272E-01 | 1.3308E+00 | -1.4728E+00 | 6.3374E-01 | 0.0000E+00 | 0.0000E+00 |
| S10 | -1.9191E-01 | 2.1993E-01 | -3.7979E-01 | 9.6021E-01 | -8.9971E-01 | 2.9876E-01 | 0.0000E+00 | 0.0000E+00 |
| S11 | -2.5073E-01 | 2.5558E-01 | -6.4947E-01 | 1.4144E+00 | -1.4899E+00 | 7.9847E-01 | -2.1529E-01 | 2.3207E-02 |
| S12 | -6.8224E-02 | -8.7659E-03 | 1.1236E-01 | -2.6503E-01 | 3.6016E-01 | -2.4123E-01 | 7.7025E-02 | -9.5297E-03 |
| S13 | -2.2609E-01 | 3.5703E-02 | 3.1612E-02 | -1.6655E-02 | 3.6647E-03 | -4.3158E-04 | 2.6666E-05 | -6.8243E-07 |
| S14 | -1.0905E-01 | 3.1278E-02 | -6.4551E-03 | 8.0681E-04 | -5.5998E-05 | 2.1240E-06 | -4.1221E-08 | 3.1958E-10 |
Table 26
Table 27 provides the effective focal length f1 to f7 of each lens in embodiment 9, total effective focal length f of optical imaging system,
The center of the object side S1 of one lens E1 to the effective pixel region on distance TTL and imaging surface S17 on optical axis imaging surface S17
The half ImgH of domain diagonal line length.
| f1(mm) | -20.56 | f6(mm) | 5.31 |
| f2(mm) | 3.45 | f7(mm) | -4.39 |
| f3(mm) | -11.06 | f(mm) | 3.92 |
| f4(mm) | 8.39 | TTL(mm) | 4.90 |
| f5(mm) | -10.87 | ImgH(mm) | 3.36 |
Table 27
Figure 18 A shows chromatic curve on the axis of the optical imaging system of embodiment 9, indicates the light warp of different wave length
Deviateed by the converging focal point after system.Figure 18 B shows the astigmatism curve of the optical imaging system of embodiment 9, indicates meridian
Curvature of the image and sagittal image surface bending.Figure 18 C shows the distortion curve of the optical imaging system of embodiment 9, indicates different
Distortion sizes values in the case of visual angle.Figure 18 D shows the ratio chromatism, curve of the optical imaging system of embodiment 9, indicates
Light via the different image heights after system on imaging surface deviation.According to Figure 18 A to Figure 18 D it is found that given by embodiment 9
Optical imaging system can be realized good image quality.
Embodiment 10
The optical imaging system 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 structural schematic diagram of the optical imaging system of the embodiment of the present application 10.
As shown in figure 19, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to
Sequence includes: the first lens E1, the second lens E2, the 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 convex 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.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 negative power, and object side S7 is concave surface, and image side surface S8 is convex 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 negative power,
Its object side S11 is concave surface, and image side surface S12 is concave 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 imaging system of embodiment 10
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 28
As shown in Table 28, in embodiment 10, the object side of any one lens of the first lens E1 into the 7th lens E7
Face and image side surface are aspherical.Table 29 shows the high-order coefficient that can be used for each aspherical mirror 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 |
| S1 | 5.9248E-02 | -5.5226E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S2 | -5.5065E-02 | -1.8907E-02 | -1.6149E-02 | -6.7391E-03 | 0.0000E+00 | 0.0000E+00 |
| S3 | -1.4488E-02 | -5.0824E-03 | 7.8047E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | -9.7625E-02 | 7.5535E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S5 | -1.4370E-01 | 4.1296E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S6 | -1.9067E-02 | -9.5060E-04 | 5.4271E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S7 | -6.6865E-02 | 6.1230E-02 | 8.4480E-03 | -6.1679E-03 | 0.0000E+00 | 0.0000E+00 |
| S8 | -1.5716E-01 | 1.1406E-01 | -1.7867E-02 | 2.3502E-02 | 0.0000E+00 | 0.0000E+00 |
| S9 | -1.1475E-02 | -1.3357E-01 | 1.0543E-01 | -2.6109E-02 | 0.0000E+00 | 0.0000E+00 |
| S10 | 6.4618E-03 | -1.3405E-01 | 7.6430E-02 | -1.3213E-02 | 0.0000E+00 | 0.0000E+00 |
| S11 | 1.5790E-01 | -1.8910E-01 | 1.0428E-01 | -4.3243E-02 | 1.1226E-02 | -1.1910E-03 |
| S12 | 8.0634E-02 | -7.6047E-02 | 2.8008E-02 | -6.2353E-03 | 8.2706E-04 | -4.8174E-05 |
| S13 | -1.3258E-01 | 8.5417E-03 | 1.0372E-02 | -2.8494E-03 | 2.9457E-04 | -1.1184E-05 |
| S14 | -9.1088E-02 | 2.6799E-02 | -5.8978E-03 | 7.6543E-04 | -4.9145E-05 | 1.1810E-06 |
Table 29
Table 30 provides the effective focal length f1 to f7 of each lens in embodiment 10, total effective focal length f of optical imaging system,
The center of the object side S1 of one lens E1 to the effective pixel region on distance TTL and imaging surface S17 on optical axis imaging surface S17
The half ImgH of domain diagonal line length.
| f1(mm) | -24.34 | f6(mm) | -168.24 |
| f2(mm) | 2.86 | f7(mm) | -13.56 |
| f3(mm) | -8.75 | f(mm) | 3.94 |
| f4(mm) | -409.56 | TTL(mm) | 5.03 |
| f5(mm) | 19.57 | ImgH(mm) | 3.36 |
Table 30
Figure 20 A shows chromatic curve on the axis of the optical imaging system of embodiment 10, indicates the light of different wave length
Deviate via the converging focal point after system.Figure 20 B shows the astigmatism curve of the optical imaging system of embodiment 10, indicates son
Noon curvature of the image and sagittal image surface bending.Figure 20 C shows the distortion curve of the optical imaging system of embodiment 10, indicates not
With the distortion sizes values in the case of visual angle.Figure 20 D shows the ratio chromatism, curve of the optical imaging system of embodiment 10, table
Show light via the deviation of the different image heights after system on imaging surface.0A to Figure 20 D is it is found that 10 institute of embodiment according to fig. 2
The optical imaging system provided can be realized good image quality.
Embodiment 11
The optical imaging system according to the embodiment of the present application 11 is described referring to Figure 21 to Figure 22 D.Figure 21 is shown
According to the structural schematic diagram of the optical imaging system of the embodiment of the present application 11.
As shown in figure 21, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to
Sequence include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th thoroughly
Mirror E6, the 7th lens E7, optical filter E8 and imaging surface S17.
First lens E1 has negative power, and object side S1 is convex 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 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 negative power, and object side S7 is concave surface, and image side surface S8 is convex 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 negative power,
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 31 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 11
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 31
As shown in Table 31, in embodiment 11, the object side of any one lens of the first lens E1 into the 7th lens E7
Face and image side surface are aspherical.Table 32 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 11, wherein
Each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.
Table 32
Table 33 provides the effective focal length f1 to f7 of each lens in embodiment 11, total effective focal length f of optical imaging system,
The center of the object side S1 of one lens E1 to the effective pixel region on distance TTL and imaging surface S17 on optical axis imaging surface S17
The half ImgH of domain diagonal line length.
| f1(mm) | -42.81 | f6(mm) | -720.09 |
| f2(mm) | 3.33 | f7(mm) | -9.91 |
| f3(mm) | -14.16 | f(mm) | 3.94 |
| f4(mm) | -1326.33 | TTL(mm) | 4.98 |
| f5(mm) | 18.68 | ImgH(mm) | 3.37 |
Table 33
Figure 22 A shows chromatic curve on the axis of the optical imaging system of embodiment 11, indicates the light of different wave length
Deviate via the converging focal point after system.Figure 22 B shows the astigmatism curve of the optical imaging system of embodiment 11, indicates son
Noon curvature of the image and sagittal image surface bending.Figure 22 C shows the distortion curve of the optical imaging system of embodiment 11, indicates not
With the distortion sizes values in the case of visual angle.Figure 22 D shows the ratio chromatism, curve of the optical imaging system of embodiment 11, table
Show light via the deviation of the different image heights after system on imaging surface.2A to Figure 22 D is it is found that 11 institute of embodiment according to fig. 2
The optical imaging system provided can be realized good image quality.
Embodiment 12
The optical imaging system according to the embodiment of the present application 12 is described referring to Figure 23 to Figure 24 D.Figure 23 is shown
According to the structural schematic diagram of the optical imaging system of the embodiment of the present application 12.
As shown in figure 23, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to
Sequence include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th thoroughly
Mirror E6, the 7th lens E7, optical filter E8 and imaging surface S17.
First lens E1 has negative power, and object side S1 is convex 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 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 positive light coke, and object side S9 is convex surface, and image side surface S10 is concave surface.6th lens E6 has negative power,
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 34 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 12
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 34
As shown in Table 34, in embodiment 12, the object side of any one lens of the first lens E1 into the 7th lens E7
Face and image side surface are aspherical.Table 35 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 12, 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 |
| S1 | 7.3377E-02 | -5.8549E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S2 | -4.3935E-02 | -2.5147E-02 | -1.9390E-02 | -8.4062E-03 | 0.0000E+00 | 0.0000E+00 |
| S3 | -8.6126E-03 | -5.1020E-03 | 1.0029E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | -1.4847E-01 | 1.1494E-01 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S5 | -1.6306E-01 | 5.4747E-02 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S6 | -1.4603E-02 | -2.3109E-03 | 6.1959E-03 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S7 | -6.0764E-02 | 7.3013E-02 | 2.0139E-02 | -1.7693E-02 | 0.0000E+00 | 0.0000E+00 |
| S8 | -1.5916E-01 | 1.2257E-01 | -2.2667E-02 | 2.4671E-02 | 0.0000E+00 | 0.0000E+00 |
| S9 | -1.0173E-02 | -1.5173E-01 | 1.1403E-01 | -2.8944E-02 | 0.0000E+00 | 0.0000E+00 |
| S10 | 2.8493E-02 | -1.4921E-01 | 7.4445E-02 | -1.1873E-02 | 0.0000E+00 | 0.0000E+00 |
| S11 | 2.3269E-01 | -2.6008E-01 | 1.6242E-01 | -7.9131E-02 | 2.1879E-02 | -2.3335E-03 |
| S12 | 6.3943E-02 | -4.6966E-02 | 7.5873E-03 | -1.2654E-03 | 5.1295E-04 | -6.3556E-05 |
| S13 | -1.6925E-01 | 5.2584E-03 | 2.0916E-02 | -6.1345E-03 | 7.0199E-04 | -2.9657E-05 |
| S14 | -9.3256E-02 | 2.2699E-02 | -3.0433E-03 | 1.1921E-04 | 1.2089E-05 | -9.3888E-07 |
Table 35
Table 36 provides the effective focal length f1 to f7 of each lens in embodiment 12, total effective focal length f of optical imaging system,
The center of the object side S1 of one lens E1 to the effective pixel region on distance TTL and imaging surface S17 on optical axis imaging surface S17
The half ImgH of domain diagonal line length.
| f1(mm) | -31.88 | f6(mm) | -63.42 |
| f2(mm) | 3.19 | f7(mm) | -12.31 |
| f3(mm) | -12.97 | f(mm) | 3.94 |
| f4(mm) | 5804.21 | TTL(mm) | 4.99 |
| f5(mm) | 18.54 | ImgH(mm) | 3.37 |
Table 36
Figure 24 A shows chromatic curve on the axis of the optical imaging system of embodiment 12, indicates the light of different wave length
Deviate via the converging focal point after system.Figure 24 B shows the astigmatism curve of the optical imaging system of embodiment 12, indicates son
Noon curvature of the image and sagittal image surface bending.Figure 24 C shows the distortion curve of the optical imaging system of embodiment 12, indicates not
With the distortion sizes values in the case of visual angle.Figure 24 D shows the ratio chromatism, curve of the optical imaging system of embodiment 12, table
Show light via the deviation of the different image heights after system on imaging surface.4A to Figure 24 D is it is found that 12 institute of embodiment according to fig. 2
The optical imaging system provided can be realized good image quality.
Embodiment 13
The optical imaging system according to the embodiment of the present application 13 is described referring to Figure 25 to Figure 26 D.Figure 25 is shown
According to the structural schematic diagram of the optical imaging system of the embodiment of the present application 13.
As shown in figure 25, according to the optical imaging system of the application illustrative embodiments along optical axis by object side to image side according to
Sequence include: diaphragm STO, the first lens E1, the second lens E2, the third lens E3, the 4th lens E4, the 5th lens E5, the 6th thoroughly
Mirror E6, the 7th lens E7, optical filter E8 and imaging surface S17.
First lens E1 has negative power, and object side S1 is convex 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.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 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 concave surface, and image side surface S12 is convex surface.7th lens E7 has negative power, and object side S13 is concave 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 37 shows surface type, radius of curvature, thickness, the material of each lens of the optical imaging system of embodiment 13
And circular cone coefficient, wherein radius of curvature and the unit of thickness are millimeter (mm).
Table 37
As shown in Table 37, in embodiment 13, the object side of any one lens of the first lens E1 into the 7th lens E7
Face and image side surface are aspherical.Table 38 shows the high-order coefficient that can be used for each aspherical mirror in embodiment 13, 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 |
| S1 | 6.0610E-02 | -7.7787E-02 | 9.3901E-05 | 3.6553E-04 | 5.3561E-04 | 0.0000E+00 |
| S2 | -2.1747E-02 | -4.3320E-02 | -4.2909E-02 | 1.9552E-02 | 0.0000E+00 | 0.0000E+00 |
| S3 | 7.7501E-04 | -6.4856E-04 | -1.0179E-03 | -2.7471E-04 | -2.7522E-04 | 0.0000E+00 |
| S4 | -2.9914E-02 | 3.7839E-02 | 2.0532E-05 | -2.2862E-04 | -3.6972E-04 | 0.0000E+00 |
| S5 | -7.0942E-04 | -5.7049E-03 | 4.6404E-04 | 4.8621E-04 | 3.9609E-04 | 0.0000E+00 |
| S6 | -1.1848E-03 | 1.4556E-04 | 1.8182E-03 | 1.2547E-03 | 1.8856E-04 | 0.0000E+00 |
| S7 | -8.0310E-03 | -3.2471E-02 | 2.5287E-02 | -5.5147E-03 | 0.0000E+00 | 0.0000E+00 |
| S8 | -2.5879E-02 | 1.8108E-02 | -4.0068E-02 | 3.1833E-02 | 0.0000E+00 | 0.0000E+00 |
| S9 | -1.6634E-01 | 1.0434E-01 | -7.1304E-02 | 8.0478E-03 | 0.0000E+00 | 0.0000E+00 |
| S10 | -1.4265E-01 | 9.0336E-02 | -5.2573E-02 | 1.0677E-02 | 0.0000E+00 | 0.0000E+00 |
| S11 | -2.2323E-02 | -2.8767E-02 | 9.3677E-03 | -1.3919E-02 | 5.9163E-03 | -4.7516E-04 |
| S12 | 3.4779E-02 | -1.2289E-02 | -1.2979E-02 | 6.9942E-03 | -1.2191E-03 | 7.2427E-05 |
| S13 | -9.1687E-02 | 1.8182E-02 | 1.4639E-03 | -8.2060E-04 | 9.4541E-05 | -3.7215E-06 |
| S14 | 1.7614E-02 | -5.0912E-02 | 2.1060E-02 | -4.0347E-03 | 3.7079E-04 | -1.3159E-05 |
Table 38
Table 39 provides the effective focal length f1 to f7 of each lens in embodiment 13, total effective focal length f of optical imaging system,
The center of the object side S1 of one lens E1 to the effective pixel region on distance TTL and imaging surface S17 on optical axis imaging surface S17
The half ImgH of domain diagonal line length.
| f1(mm) | -462.56 | f6(mm) | 17.62 |
| f2(mm) | 2.96 | f7(mm) | -5.07 |
| f3(mm) | -7.43 | f(mm) | 4.30 |
| f4(mm) | 105.82 | TTL(mm) | 5.10 |
| f5(mm) | 22.10 | ImgH(mm) | 3.67 |
Table 39
Figure 26 A shows chromatic curve on the axis of the optical imaging system of embodiment 13, indicates the light of different wave length
Deviate via the converging focal point after system.Figure 26 B shows the astigmatism curve of the optical imaging system of embodiment 13, indicates son
Noon curvature of the image and sagittal image surface bending.Figure 26 C shows the distortion curve of the optical imaging system of embodiment 13, indicates not
With the distortion sizes values in the case of visual angle.Figure 26 D shows the ratio chromatism, curve of the optical imaging system of embodiment 13, table
Show light via the deviation of the different image heights after system on imaging surface.6A to Figure 26 D is it is found that 13 institute of embodiment according to fig. 2
The optical imaging system provided can be realized good image quality.
To sum up, embodiment 1 to embodiment 13 meets relationship shown in table 40 respectively.
| Conditional embodiment | 1 | 2 | 3 | 4 | 5 | 6 |
| f56/f1234 | 2.09 | 2.98 | 3.60 | 3.06 | 2.70 | 2.51 |
| TTL/ImgH | 1.45 | 1.46 | 1.41 | 1.44 | 1.46 | 1.48 |
| |f2/f|+|f3/f| | 4.30 | 3.46 | 3.41 | 3.06 | 2.99 | 3.02 |
| (R1+R6)/(R11+R14) | -1.64 | -2.12 | -1.79 | -1.71 | -1.64 | -1.15 |
| (1/f5+1/f6)/(1/f7) | -0.47 | -0.38 | -0.30 | -0.35 | -0.40 | -0.44 |
| T67/(CT5+CT6) | 0.99 | 1.39 | 1.58 | 1.44 | 1.28 | 1.16 |
| ∑CT/∑AT | 1.60 | 1.53 | 1.33 | 1.41 | 1.51 | 1.52 |
| (R5-R6)/(R5+R6) | 0.11 | 0.13 | 0.12 | 0.14 | 0.14 | 0.14 |
| (|R10|-|R9|)/f | 0.97 | 0.19 | 0.17 | 0.17 | 0.17 | 0.16 |
| CT1/SD11 | 0.12 | 0.15 | 0.16 | 0.15 | 0.15 | 0.16 |
| f/R11 | -0.86 | -0.81 | -0.87 | -0.83 | -0.78 | -0.74 |
Table 40
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 (22)
- 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, the 5th lens, the 6th lens and the 7th lens,It is characterized in that,First lens have negative power；Second lens, the third lens, the 4th lens, the 5th lens and the 6th lens all have just Focal power or negative power；The object side of the image side surface of the third lens and the 6th lens is concave surface；7th lens have negative power, and image side surface is concave surface；The combined focal length f56 of 5th lens and the 6th lens and first lens, second lens, described the The combined focal length f1234 of three lens and the 4th lens meets 2≤f56/f1234 < 6.
- 2. optical imaging system according to claim 1, which is characterized in that total effective focal length of the optical imaging system F, the effective focal length f2 of second lens and the effective focal length f3 of the third lens meet 2 < | f2/f |+| f3/f | < 4.5。
- 3. optical imaging system according to claim 1, which is characterized in that the effective focal length f5 of the 5th lens, institute The effective focal length f7 of the effective focal length f6 and the 7th lens that state the 6th lens meet -1 < (1/f5+1/f6)/(1/f7) < 0。
- 4. optical imaging system according to claim 3, which is characterized in that the 6th lens and the 7th lens exist Spacing distance T67, the 5th lens on the optical axis on the optical axis center thickness CT5 and the 6th lens in Center thickness CT6 on the optical axis meets T67/ (CT5+CT6) < 2.
- 5. optical imaging system according to claim 1, which is characterized in that the curvature of the object side of first lens half Diameter R1, the radius of curvature R 6 of the image side surface of the third lens, the 6th lens object side radius of curvature R 11 with it is described The radius of curvature R 14 of the image side surface of 7th lens meets -2.5 < (R1+R6)/(R11+R14) < 0.5.
- 6. optical imaging system according to claim 1, which is characterized in that the curvature of the object side of the third lens half The radius of curvature R 6 of diameter R5 and the image side surface of the third lens meets 0 < (R5-R6)/(R5+R6) < 0.5.
- 7. optical imaging system according to claim 1, which is characterized in that the curvature of the object side of the 5th lens half Diameter R9, the radius of curvature R 10 of image side surface of the 5th lens and total effective focal length f of the optical imaging system meet 0 < (| R10 |-| R9 |)/f < 1.5.
- 8. optical imaging system according to claim 1, which is characterized in that total effective focal length of the optical imaging system The radius of curvature R 11 of the object side of f and the 6th lens meets -1 < f/R11 < 0.
- 9. optical imaging system according to claim 1, which is characterized in that first lens are on the optical axis Heart thickness CT1 and the effective radius SD11 of the first lens object side meet CT1/SD11 < 0.5.
- 10. optical imaging system according to any one of claim 1 to 9, which is characterized in that first lens to institute The 7th lens are stated to appoint respectively at the sum of center thickness on optical axis ∑ CT and first lens into the 7th lens The sum of spacing distance of adjacent two lens on the optical axis ∑ AT that anticipates meets 1 < ∑ CT/ ∑ AT < 3.5.
- 11. optical imaging system according to any one of claim 1 to 9, which is characterized in that the object of first lens The center of side to the optical imaging system distance TTL of the imaging surface on the optical axis and the optical imaging system The half ImgH of effective pixel area diagonal line length meets TTL/ImgH < 1.6 on imaging surface.
- 12. 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, the 5th lens, the 6th lens and the 7th lens,It is characterized in that,First lens have negative power；Second lens, the third lens, the 4th lens, the 5th lens and the 6th lens all have just Focal power or negative power；The object side of the image side surface of the third lens and the 6th lens is concave surface；7th lens have negative power, and image side surface is concave surface；First lens are full in the effective radius SD11 of center thickness CT1 and the first lens object side on the optical axis Sufficient CT1/SD11 < 0.5.
- 13. optical imaging system according to claim 12, which is characterized in that the center of the object side of first lens Imaging surface to the optical imaging system has on the imaging surface of distance TTL and the optical imaging system on the optical axis The half ImgH of effect pixel region diagonal line length meets TTL/ImgH < 1.6.
- 14. optical imaging system according to claim 13, which is characterized in that first lens to the 7th lens Respectively at the sum of center thickness on optical axis ∑ CT and first lens, into the 7th lens, arbitrary neighborhood two is saturating The sum of spacing distance of the mirror on optical axis ∑ AT meets 1 < ∑ CT/ ∑ AT < 3.5.
- 15. optical imaging system described in 3 or 14 according to claim 1, which is characterized in that the 6th lens and the described 7th Spacing distance T67 of the lens on the optical axis, the 5th lens are in the center thickness CT5 and the described 6th on the optical axis Lens meet T67/ (CT5+CT6) < 2 in the center thickness CT6 on the optical axis.
- 16. optical imaging system according to claim 15, which is characterized in that the effective focal length f5 of the 5th lens, The effective focal length f6 of 6th lens and the effective focal length f7 of the 7th lens meet -1 < (1/f5+1/f6)/(1/f7) < 0.
- 17. optical imaging system according to claim 12, which is characterized in that the curvature of the object side of first lens Radius R1, the radius of curvature R 6 of the image side surface of the third lens, the 6th lens object side radius of curvature R 11 and institute The radius of curvature R 14 for stating the image side surface of the 7th lens meets -2.5 < (R1+R6)/(R11+R14) < 0.5.
- 18. optical imaging system according to claim 12, which is characterized in that the curvature of the object side of the third lens The radius of curvature R 6 of radius R5 and the image side surface of the third lens meets 0 < (R5-R6)/(R5+R6) < 0.5.
- 19. optical imaging system according to claim 12, which is characterized in that the curvature of the object side of the 5th lens Radius R9, the radius of curvature R 10 of image side surface of the 5th lens and total effective focal length f of the optical imaging system meet 0 < (| R10 |-| R9 |)/f < 1.5.
- 20. optical imaging system according to claim 12, which is characterized in that total effective coke of the optical imaging system Radius of curvature R 11 away from f and the object side of the 6th lens meets -1 < f/R11 < 0.
- 21. optical imaging system described in any one of 7 to 20 according to claim 1, which is characterized in that the 5th lens and The combined focal length f56 of 6th lens and first lens, second lens, the third lens and the described 4th are thoroughly The combined focal length f1234 of mirror meets 2≤f56/f1234 < 6.
- 22. optical imaging system described in any one of 7 to 20 according to claim 1, which is characterized in that the optical imagery system The effective focal length f3 of total effective focal length f of system, the effective focal length f2 of second lens and the third lens meet 2 < | f2/ F |+| f3/f | < 4.5.
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