CN107490841A

CN107490841A - Imaging lens system group

Info

Publication number: CN107490841A
Application number: CN201710860093.9A
Authority: CN
Inventors: 闻人建科; 李明; 吕赛峰; 叶丽慧
Original assignee: Zhejiang Sunny Optics Co Ltd
Current assignee: Zhejiang Sunny Optics Co Ltd
Priority date: 2017-09-21
Filing date: 2017-09-21
Publication date: 2017-12-19
Anticipated expiration: 2037-09-21
Also published as: CN107490841B

Abstract

This application discloses a kind of imaging lens system group, the imaging lens system group is sequentially included along optical axis by thing side to image side：The first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens with focal power.Wherein, the second lens have positive light coke, and its thing side is convex surface；The thing side of 3rd lens is convex surface, and image side surface is concave surface；The thing side of 6th lens is convex surface, and image side surface is concave surface；The image side surface of 7th lens is concave surface；And the 4th lens in the center thickness CT4 on optical axis and the 5th lens meet CT4/CT5 ＞ 1.5 in the center thickness CT5 on optical axis.

Description

Imaging lens system group

Technical field

The application is related to a kind of imaging lens system group, more specifically, to be related to a kind of shooting including seven lens saturating by the application Microscope group.

Background technology

With the trend toward miniaturization of portable type electronic product, to matching, the imaging lens system group used proposes super-thin small The requirement of change.Meanwhile with the application popularization of the portable type electronic product such as mobile phone, tablet personal computer, match taking the photograph of using As lens group not only need daylight or it is bright and clear under conditions of there is good image quality, such as the cloudy day, dusk In the case of insufficient light, it is also desirable to which there is preferable image quality.This just to the high pixel of imaging lens system group, high-resolution, Imaging surface light levels and clear aperature etc. propose corresponding requirements.

The content of the invention

This application provides be applicable to portable type electronic product, can at least solve or part solve it is of the prior art The imaging lens system group of above-mentioned at least one shortcoming, for example, large aperture imaging lens system group.

On the one hand, this application provides such a imaging lens system group, the lens group along optical axis by thing side to image side according to Sequence includes：The first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens with focal power and Seven lens.Wherein, the second lens can have positive light coke, and its thing side can be convex surface；The thing side of 3rd lens can be convex surface, Image side surface can be concave surface；The thing side of 6th lens can be convex surface, and image side surface can be concave surface；The image side surface of 7th lens can be recessed Face；4th lens can meet CT4/CT5 in the center thickness CT4 on optical axis and the 5th lens in the center thickness CT5 on optical axis ＞ 1.5.

In one embodiment, the total effective focal length f and the Entry pupil diameters EPD of imaging lens system group of imaging lens system group can expire Sufficient f/EPD≤1.65.

In one embodiment, the effective focal length f2 of the second lens and total effective focal length f of imaging lens system group can meet 0.5 ＜ f2/f ＜ 1.5.

In one embodiment, the effective focal length f4 of the 4th lens and the effective focal length f6 of the 6th lens can meet 0.5 ＜ f4/f6 ＜ 2.

In one embodiment, the 7th lens can have a negative power, and its effective focal length f7 is effective with the second lens Focal length f2 can meet -1.5 ＜ f7/f2 ＜ -0.5.

In one embodiment, the radius of curvature of the lens image side surface of radius of curvature R 6 and second of the 3rd lens image side surface R4 can meet -0.5 ＜ R6/R4 ＜ 0.8.

In one embodiment, the radius of curvature of the lens image side surface of radius of curvature R 7 and the 4th of the 4th lens thing side R8 can meet 0 ＜ (R7+R8)/(R7-R8)≤1.5.

In one embodiment, the radius of curvature R 9 of total effective focal length f of imaging lens system group and the 5th lens thing side - 3.5 ＜ f/R9 ＜ 0.5 can be met.

In one embodiment, the effective focal length f5 of the 5th lens and the radius of curvature R 10 of the 5th lens image side surface can Meet -2 ＜ f5/R10 ＜ 22.

In one embodiment, the curvature of the lens image side surface of radius of curvature R 11 and the 6th of the 6th lens thing side half Footpath R12 can meet 1.5 ＜ | R11+R12 |/| R11-R12 | ＜ 3.5.

In one embodiment, the curvature of the lens thing side of radius of curvature R 12 and the 6th of the 6th lens image side surface half Footpath R11 can meet 1.5 ＜ R12/R11 ＜ 4.0.

In one embodiment, spacing distance T67 and the 5th lens on optical axis of the 6th lens and the 7th lens and Spacing distance T56 of 6th lens on optical axis can meet 4 ＜ T67/T56 ＜ 14.

In one embodiment, the first lens to the 7th lens are saturating respectively at the center thickness ∑ CT on optical axis and first Distance TTL of the thing side of mirror to imaging lens system composition image planes on optical axis can meet 0.5≤∑ CT/TTL≤0.7.

In one embodiment, distance TTL of the thing side of the first lens to imaging lens system composition image planes on optical axis It can meet TTL/ImgH≤1.60 with the half ImgH of effective pixel area diagonal line length in imaging lens system composition image planes.

On the other hand, present invention also provides such a imaging lens system group, the lens group is along optical axis by thing side to picture Side sequentially includes：The first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens with focal power With the 7th lens.Wherein, the thing side of the second lens can be convex surface；The thing side of 3rd lens can be convex surface, and image side surface can be Concave surface；The thing side of 6th lens can be convex surface, and image side surface can be concave surface；The image side surface of 7th lens can be concave surface；4th is saturating The effective focal length f4 of mirror and the effective focal length f6 of the 6th lens can meet 0.5 ＜ f4/f6 ＜ 2.

In one embodiment, the second lens can have positive light coke.

In one embodiment, the 4th lens and the 6th lens can have positive light coke.

On the other hand, present invention also provides such a imaging lens system group, the lens group is along optical axis by thing side to picture Side sequentially includes：The first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens with focal power With the 7th lens.Wherein, the second lens can have positive light coke, and its thing side can be convex surface；The thing side of 3rd lens can be Convex surface, image side surface can be concave surface；The thing side of 6th lens can be convex surface, and image side surface can be concave surface；The image side surface of 7th lens It can be concave surface；The effective focal length f2 of second lens and total effective focal length f of imaging lens system group can meet 0.5 ＜ f2/f ＜ 1.5.

On the other hand, present invention also provides such a imaging lens system group, the lens group is along optical axis by thing side to picture Side sequentially includes：The first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens with focal power With the 7th lens.Wherein, the second lens can have positive light coke, and its thing side can be convex surface；The thing side of 3rd lens can be Convex surface, image side surface can be concave surface；The thing side of 6th lens can be convex surface, and image side surface can be concave surface；The image side surface of 7th lens It can be concave surface；The spacing distance T67 and the 5th lens and the 6th lens of 6th lens and the 7th lens on optical axis are on optical axis Spacing distance T56 can meet 4 ＜ T67/T56 ＜ 14.

On the other hand, present invention also provides such a imaging lens system group, the lens group is along optical axis by thing side to picture Side sequentially includes：The first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens with focal power With the 7th lens.Wherein, the second lens can have positive light coke, and its thing side can be convex surface；The thing side of 3rd lens can be Convex surface, image side surface can be concave surface；The thing side of 6th lens can be convex surface, and image side surface can be concave surface；7th lens can have negative Focal power, its image side surface can be concave surface；The effective focal length f7 of 7th lens and the effective focal length f2 of the second lens can meet -1.5 ＜ f7/f2 ＜ -0.5.

On the other hand, present invention also provides such a imaging lens system group, the lens group is along optical axis by thing side to picture Side sequentially includes：The first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens with focal power With the 7th lens.Wherein, the second lens can have positive light coke, and its thing side can be convex surface；The thing side of 3rd lens can be Convex surface, image side surface can be concave surface；The thing side of 6th lens can be convex surface, and image side surface can be concave surface；The image side surface of 7th lens It can be concave surface；The radius of curvature R 11 of the lens thing side of radius of curvature R 12 and the 6th of 6th lens image side surface can meet 1.5 ＜ R12/R11 ＜ 4.0.

On the other hand, present invention also provides such a imaging lens system group, the lens group is along optical axis by thing side to picture Side sequentially includes：The first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens with focal power With the 7th lens.Wherein, the second lens can have positive light coke, and its thing side can be convex surface；The thing side of 3rd lens can be Convex surface, image side surface can be concave surface；The thing side of 6th lens can be convex surface, and image side surface can be concave surface；The image side surface of 7th lens It can be concave surface；Distance TTL and imaging lens system composition picture of the thing side of first lens to imaging lens system composition image planes on optical axis The half ImgH of effective pixel area diagonal line length can meet TTL/ImgH≤1.60 on face.

The application employs multi-disc (for example, seven) lens, by each power of lens of reasonable distribution, face type, each Spacing etc. on axle between the center thickness of mirror and each lens, make imaging lens system group that there is large aperture advantage, Enhanced Imaging face Relative luminance, and improve the imaging effect under conditions of insufficient light.Meanwhile may be used also by the imaging lens system group of above-mentioned configuration It is at least one beneficial to effect with ultra-thin, miniaturization, large aperture, low sensitivity, good processability, high image quality, wide-angle etc. Fruit.

Brief description of the drawings

With reference to accompanying 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 representation of the imaging lens system group according to the embodiment of the present application 1；

Fig. 2A to Fig. 2 D respectively illustrates chromatic curve on the axle of the imaging lens system group of embodiment 1, astigmatism curve, distortion song Line and ratio chromatism, curve；

Fig. 3 shows the structural representation of the imaging lens system group according to the embodiment of the present application 2；

Fig. 4 A to Fig. 4 D respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 2, astigmatism curve, distortion song Line and ratio chromatism, curve；

Fig. 5 shows the structural representation of the imaging lens system group according to the embodiment of the present application 3；

Fig. 6 A to Fig. 6 D respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 3, astigmatism curve, distortion song Line and ratio chromatism, curve；

Fig. 7 shows the structural representation of the imaging lens system group according to the embodiment of the present application 4；

Fig. 8 A to Fig. 8 D respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 4, astigmatism curve, distortion song Line and ratio chromatism, curve；

Fig. 9 shows the structural representation of the imaging lens system group according to the embodiment of the present application 5；

Figure 10 A to Figure 10 D respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 5, astigmatism curve, distortion Curve and ratio chromatism, curve；

Figure 11 shows the structural representation of the imaging lens system group according to the embodiment of the present application 6；

Figure 12 A to Figure 12 D respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 6, astigmatism curve, distortion Curve and ratio chromatism, curve；

Figure 13 shows the structural representation of the imaging lens system group according to the embodiment of the present application 7；

Figure 14 A to Figure 14 D respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 7, astigmatism curve, distortion Curve and ratio chromatism, curve；

Figure 15 shows the structural representation of the imaging lens system group according to the embodiment of the present application 8；

Figure 16 A to Figure 16 D respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 8, astigmatism curve, distortion Curve and ratio chromatism, curve；

Figure 17 shows the structural representation of the imaging lens system group according to the embodiment of the present application 9；

Figure 18 A to Figure 18 D respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 9, astigmatism curve, distortion Curve and ratio chromatism, curve；

Figure 19 shows the structural representation of the imaging lens system group according to the embodiment of the present application 10；

Figure 20 A to Figure 20 D respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 10, astigmatism curve, abnormal Varied curve and ratio chromatism, curve；

Figure 21 shows the structural representation of the imaging lens system group according to the embodiment of the present application 11；

Figure 22 A to Figure 22 D respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 11, astigmatism curve, abnormal Varied curve and ratio chromatism, curve；

Figure 23 shows the structural representation of the imaging lens system group according to the embodiment of the present application 12；

Figure 24 A to Figure 24 D respectively illustrate chromatic curve on the axle of the imaging lens system group of embodiment 12, astigmatism curve, abnormal Varied curve and ratio chromatism, curve.

Embodiment

In order to more fully understand the application, refer to the attached drawing is made into more detailed description to the various aspects of the application.Should Understand, these describe the description of the simply illustrative embodiments to the application in detail, rather than limit the application in any way Scope.In the specification, identical reference numbers identical element.Stating "and/or" includes associated institute Any and all combinations of one or more of list of items.

It should be noted that in this manual, the statement of first, second, third, etc. is only used for a feature and another spy Sign makes a distinction, and does not indicate that any restrictions to feature.Therefore, in the case of without departing substantially from teachings of the present application, hereinafter The first lens discussed are also known as the second lens or the 3rd lens.

In the accompanying drawings, for convenience of description, thickness, the size and dimension of lens are somewhat exaggerated.Specifically, accompanying drawing Shown in sphere or aspherical shape be illustrated by way of example.That is, sphere or aspherical shape is not limited to accompanying drawing In the sphere that shows or aspherical shape.Accompanying 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 the convex surface position When putting, then it represents that the lens surface is extremely convex surface less than near axis area；If lens surface is concave surface and does not define the concave surface position When, then it represents that the lens surface is extremely concave surface less than near axis area.It is referred to as thing side near the surface of object in each lens, It is referred to as image side surface near the surface of imaging surface in each lens.

It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory Represent stated feature, element and/or part be present when being used in bright book, but do not preclude the presence or addition of one or more Further feature, element, part and/or combinations thereof.In addition, ought the statement of such as " ... at least one " appear in institute When after the list of row feature, whole listed feature, rather than the individual component in modification list are modified.In addition, work as description originally During the embodiment of application, represented " one or more embodiments of the application " using "available".Also, term " exemplary " It is intended to refer to example or illustration.

Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein be respectively provided with The application one skilled in the art's is generally understood that identical implication.It will also be appreciated that term (such as in everyday words Term defined in allusion quotation) implication consistent with their implications in the context of correlation technique should be interpreted as having, and It will not explained with idealization or excessively formal sense, unless clearly so limiting herein.

It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Describe the application 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.

Such as seven lens with focal power are included according to the imaging lens system group of the application illustrative embodiments, i.e. First lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens.This seven lens edges Optical axis from thing side to image side sequential.

In the exemplary embodiment, imaging lens system group may include：The first lens with focal power；With positive light coke The second lens, its thing side is convex surface；The 3rd lens with focal power, its thing side are convex surface, and image side surface is concave surface；Tool There are the 4th lens of focal power；The 5th lens with focal power；The 6th lens with focal power, its thing side are convex surface, Image side surface is concave surface；The 7th lens with focal power, its image side surface are concave surface.

In one embodiment, the first lens can have negative power；Second lens can have positive light coke；3rd is saturating Mirror can have positive light coke；4th lens can have positive light coke；5th lens can have negative power；6th lens can have Positive light coke；And the 7th lens can have negative power.

In one embodiment, the first lens can have negative power；Second lens can have positive light coke；3rd is saturating Mirror can have negative power；4th lens can have positive light coke；5th lens can have negative power；6th lens can have Positive light coke；And the 7th lens can have negative power.

In one embodiment, the first lens can have positive light coke；Second lens can have positive light coke；3rd is saturating Mirror can have negative power；4th lens can have positive light coke；5th lens can have negative power；6th lens can have Positive light coke；And the 7th lens can have negative power.

Second lens can have positive light coke, can expire between its effective focal length f2 and total effective focal length f of imaging lens system group 0.5 ＜ f2/f ＜ 1.5 of foot, more specifically, f2 and f can further meet 0.80≤f2/f≤1.40.By by the second lens Positive light coke controls in the reasonable scope, can efficiently control the aberration related to visual field such as the curvature of field and distortion, so as to Lift image quality.

0.5 ＜ f4/f6 ＜ 2.0 can be met between the effective focal length f4 of 4th lens and the effective focal length f6 of the 6th lens, More specifically, f4 and f6 can further meet 0.92≤f4/f6≤1.89.Pass through the lens of reasonable distribution the 4th and the 6th lens It focal power, can effectively reduce the aberration of imaging system, reduce the sensitiveness of imaging system.In the exemplary embodiment, Two lens and the 4th lens can have positive light coke.

Can meet between the effective focal length f7 of 7th lens and the effective focal length f2 of the second lens -1.5 ＜ f7/f2 ＜ - 0.5, more specifically, f7 and f2 can further meet -1.21≤f7/f2≤- 0.79.The lens of reasonable distribution the 7th and the second lens Focal power, be advantageous to lifted camera lens optical property, obtain preferable image quality.In the exemplary embodiment, second Lens can have positive light coke, and the 7th lens can have negative power.

In the application, design can be optimized to the radius of curvature of each lens mirror in lens group, it is each by rationally controlling The bending direction and degree of crook of minute surface so that lens group has preferable optical property.

It can meet -3.5 ＜ f/ between total effective focal length f of imaging lens system group and the radius of curvature R 9 of the 5th lens thing side R9 ＜ 0.5, more specifically, f and R9 can further meet -3.11≤f/R9≤0.01.Pass through the lens thing side of reasonable Arrangement the 5th The radius of curvature in face, deflection of light angle can be controlled in zone of reasonableness, and then imaging system is relatively easy to and is commonly used Chip is matched.

It can meet -2 ＜ f5/R10 between the effective focal length f5 of 5th lens and the radius of curvature R 10 of the 5th lens image side surface ＜ 22, more specifically, f5 and R10 can further meet -1.54≤f5/R10≤21.08.Pass through the lens picture of reasonable Arrangement the 5th The radius of curvature of side, rational light deflection angle can be undertaken, so as to reduce the primary aberration of imaging system.Showing In example property embodiment, the 5th lens can have negative power.

It can meet -0.5 between the radius of curvature R 4 of the lens image side surface of radius of curvature R 6 and second of 3rd lens image side surface ＜ R6/R4 ＜ 0.8, more specifically, R6 and R4 can further meet -0.11≤R6/R4≤0.59.It is second saturating by rationally controlling Mirror image side and the bending direction and degree of crook of the 3rd lens image side surface, the curvature of field of imaging system can be efficiently controlled, so as to Lift the image quality of imaging system.Alternatively, the image side surface of the 3rd lens can be concave surface.

It can meet 0 ＜ between the radius of curvature R 8 of the lens image side surface of radius of curvature R 7 and the 4th of 4th lens thing side (R7+R8)/(R7-R8)≤1.5, more specifically, R7 and R8 can further meet 0.28≤(R7+R8)/(R7-R8)≤1.50. By rationally controlling the radius of curvature of the 4th lens thing side and image side surface, the astigmatism amount of imaging system can be efficiently controlled.Can Selection of land, the 4th lens can be biconvex lens or the 4th lens can be the meniscus lens for being convex to image side.

It can meet 1.5 between the radius of curvature R 12 of the lens image side surface of radius of curvature R 11 and the 6th of 6th lens thing side ＜ | R11+R12 |/| R11-R12 | ＜ 3.5, more specifically, R11 and R12 can further meet 1.79≤| R11+R12 |/| R11- R12|≤3.16.Or the 6th lens thing side the lens image side surface of radius of curvature R 11 and the 6th radius of curvature R 12 between 1.5 ＜ R12/R11 ＜ 4.0 can also be met, more specifically, R11 and R12 can further meet 1.93≤R12/R11≤3.53. By controlling the bending direction and degree of crook of the 6th lens thing side and image side surface, to control the curvature of field amount of imaging system, from And realize the amendment to imaging system overall aberration.Alternatively, the thing side of the 6th lens can be convex surface, and image side surface can be recessed Face.

In the application, the center thickness of each lens and the spacing distance of each lens can also be optimized, to cause Microscope group has good optical property.

4th lens can expire in the center thickness CT4 on optical axis and the 5th lens between the center thickness CT5 on optical axis Sufficient CT4/CT5 ＞ 1.5, more specifically, CT4 and CT5 can further meet 1.64≤CT4/CT5≤2.52.Pass through reasonable disposition The center thickness CT4 of the 4th lens and center thickness CT5 of the 5th lens, while ensureing to minimize the imaging can be made to be Ability of the system with the distortion that preferably disappears, so as to lift the image quality of imaging system.

Each lens with focal power are respectively at the summation Σ CT of the center thickness on optical axis and the thing side of the first lens Center to imaging lens system composition image planes the distance TTL on optical axis between can meet 0.5≤∑ CT/TTL≤0.7, more Body, Σ CT and TTL can further meet 0.55≤∑ CT/TTL≤0.60.By the center thickness of each lens of reasonable disposition, Be advantageous to imaging system and obtain more preferable image quality.In addition, the reasonable distribution of each lens center thickness, is also beneficial to lens group The stability of assembling.In there is the imaging lens system group of power lenses including seven, Σ CT=CT1+CT2+CT3+CT4+CT5 + CT6+CT7, wherein, CT1 is that the first lens are thick in the center on optical axis for the second lens in the center thickness on optical axis, CT2 Degree, CT3 be the 3rd lens in the center thickness on optical axis, CT4 be the 4th lens in the center thickness on optical axis, CT5 is the 5th Lens in the center thickness on optical axis, CT6 be the 6th lens in the center thickness on optical axis, CT7 is the 7th lens on optical axis Center thickness.

The spacing distance T67 and the 5th lens and the 6th lens of 6th lens and the 7th lens on optical axis are on optical axis 4 ＜ T67/T56 ＜ 14 can be met between spacing distance T56, more specifically, T67 and T56 can further meet 4.36≤T67/ T56≤13.77.Spacing distance between each lens of reasonable disposition, the longitudinal size of imaging system can be effectively compressed, is implemented as As the ultra-slim features of system.

The center of the thing side of first lens forms the distance TTL and imaging lens system on optical axis of image planes to imaging lens system TTL/ImgH≤1.60 can be met between the half ImgH of effective pixel area diagonal line length in composition image planes, more specifically, TTL It can further meet 1.40≤TTL/ImgH≤1.55 with ImgH.By the optics total length to camera lens and as a high proportion of control System, the size of imaging system can be effectively compressed, to realize the ultra-slim features of imaging lens system group and miniaturization, so that this is taken the photograph As lens group can preferably be applied to the system that for example portable type electronic product equidimension is limited.

Can meet between total effective focal length f of imaging lens system group and the Entry pupil diameters EPD of imaging lens system group f/EPD≤ 1.65, more specifically, f and EPD can further meet 1.54≤f/EPD≤1.65.The F-number Fno of imaging lens system group is (i.e., thoroughly The Entry pupil diameters EPD of total effective focal length f/ lens groups of microscope group) it is smaller, the clear aperature of lens group is bigger, in same unit Interior light-inletting quantity is just more.F-number Fno diminution, it can effectively lift image planes brightness so that lens group can be preferably Meet the shooting demand during insufficient light such as cloudy day, dusk.Lens group is configured to meet conditional f/EPD≤1.65, It can make lens group that there is large aperture advantage, the relative illumination in Enhanced Imaging face, so as to reduce during thang-kng amount is increased Imaging effect of the lens group under dark situation is lifted while peripheral field aberration.

In the exemplary embodiment, imaging lens system group is also provided with least one diaphragm, to lifted camera lens into As quality.Diaphragm may be provided between such as the first lens and the second lens.

Alternatively, above-mentioned imaging lens system group may also include optical filter for correcting color error ratio and/or for guard bit In the protective glass of the photo-sensitive cell on imaging surface.

Multi-disc eyeglass, such as described above seven can be used according to the imaging lens system group of the above-mentioned embodiment of the application Piece.Pass through spacing on the axle between each power of lens of reasonable distribution, face type, the center thickness of each lens and each lens Deng, can effectively the volume of reducing glass group, reduce lens group susceptibility and improve the machinability of lens group so that shooting Lens group is more beneficial for producing and processing and being applicable to portable type electronic product.Meanwhile pass through the imaging lens system of above-mentioned configuration Group, also there is the beneficial effect such as ultra-thin, large aperture, high brightness, high image quality.

In presently filed embodiment, at least one in the minute surface of each lens is aspherical mirror.Non-spherical lens The characteristics of be：From lens centre to lens perimeter, curvature is consecutive variations.It is constant with having from lens centre to lens perimeter The spherical lens of curvature is different, and non-spherical lens has more preferably radius of curvature characteristic, and there is improvement to distort aberration and improve picture The advantages of dissipating aberration.After non-spherical lens, the aberration occurred when imaging can be eliminated as much as possible, so as to improve Image quality.

However, it will be understood by those of skill in the art that without departing from this application claims technical scheme situation Under, the lens numbers for forming imaging lens system group can be changed, to obtain each result and advantage described in this specification.For example, Although being described in embodiments by taking seven lens as an example, the imaging lens system group is not limited to include seven lens. If desired, the imaging lens system group may also include the lens of other quantity.

The specific embodiment for the imaging lens system group for being applicable to above-mentioned embodiment is further described with reference to the accompanying drawings.

Embodiment 1

Imaging lens system group referring to Fig. 1 to Fig. 2 D descriptions according to the embodiment of the present application 1.Fig. 1 is shown according to this Shen Please embodiment 1 imaging lens system group structural representation.

As shown in figure 1, imaging lens system group sequentially includes the first lens E1, the second lens along optical axis from thing side into image side E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7 and imaging surface S17.

First lens E1 has negative power, and its thing side S1 is convex surface, and image side surface S2 is concave surface, and the first lens E1 Thing side S1 and image side surface S2 is aspherical.

Second lens E2 has positive light coke, and its thing side S3 is convex surface, and image side surface S4 is concave surface, and the second lens E2 Thing side S3 and image side surface S4 is aspherical.

3rd lens E3 has positive light coke, and its thing side S5 is convex surface, and image side surface S6 is concave surface, and the 3rd lens E3 Thing side S5 and image side surface S6 is aspherical.

4th lens E4 has positive light coke, and its thing side S7 is convex surface, and image side surface S8 is convex surface, and the 4th lens E4 Thing side S7 and image side surface S8 is aspherical.

5th lens E5 has negative power, and its thing side S9 is concave surface, and image side surface S10 is convex surface, and the 5th lens E5 Thing side S9 and image side surface S10 be aspherical.

6th lens E6 has positive light coke, and its thing side S11 is convex surface, and image side surface S12 is concave surface, and the 6th lens E6 Thing side S11 and image side surface S12 be aspherical.

7th lens E7 has negative power, and its thing side S13 is convex surface, and image side surface S14 is concave surface, and the 7th lens E7 Thing side S13 and image side surface S14 be aspherical.

Alternatively, imaging lens system group may also include the optical filter E8 with thing side S15 and image side surface S16.From object Light sequentially through each surface S1 to S16 and being ultimately imaged on imaging surface S17.

Alternatively, imaging lens system group may also include the diaphragm STO being arranged between the first lens E1 and the second lens E2, with Improve image quality.

Table 1 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens system group of embodiment 1 Coefficient is bored, wherein, the unit of radius of curvature and thickness is millimeter (mm).

Table 1

It can be obtained according to table 1, the 3rd lens E3 image side surface S6 lens E2 of radius of curvature R 6 and second image side surface S4's Meet R6/R4=0.52 between radius of curvature R 4；The 4th lens E4 thing side S7 lens E4's of radius of curvature R 7 and the 4th Meet (R7+R8)/(R7-R8)=0.29 between image side surface S8 radius of curvature R 8；6th lens E6 thing side S11 curvature Meet between radius R11 and the 6th lens E6 image side surface S12 radius of curvature R 12 | R11+R12 |/| R11-R12 |=2.11； Between the 6th lens E6 thing side S11 lens E6 of radius of curvature R 11 and the 6th image side surface S12 radius of curvature R 12 also Meet R12/R11=2.80；4th lens E4 is thick in the center on optical axis in the center thickness CT4 on optical axis and the 5th lens E5 Meet CT4/CT5=2.33 between degree CT5；Summations of the first lens E1 to the 7th lens E7 respectively at the center thickness on optical axis Meet on Σ CT and the first lens E1 thing side S1 center to the imaging surface S17 of imaging lens system group axle between distance TTL Σ CT/TTL=0.55；Spacing distance T67s and fiveth lens E5 and sixth of the 6th lens E6 and the 7th lens E7 on optical axis Lens E6 meets T67/T56=9.29 between the spacing distance T56 on optical axis.

In the present embodiment, each lens can use non-spherical lens, and each aspherical face type x is limited by below equation：

Wherein, x be it is aspherical along optical axis direction when being highly h position, away from aspheric vertex of surface apart from rise；C is Aspherical paraxial curvature, c=1/R (that is, paraxial curvature c is the mean curvature radius R of upper table 1 inverse)；K be circular cone coefficient ( Provided in table 1)；Ai is the correction factor of aspherical i-th-th ranks.Table 2 below is given available for each aspherical in embodiment 1 Minute surface S1-S14 high order term coefficient A₄、A₆、A₈、A₁₀、A₁₂、A₁₄、A₁₆、A₁₈And A₂₀。

Table 2

It is total that table 3 provides the effective focal length f1 to f7 of each lens in embodiment 1, total effective focal length f, the optics of imaging lens system group Length TTL (that is, the distance from the first lens E1 thing side S1 center to imaging surface S17 on optical axis) and imaging surface The half ImgH of the upper effective pixel area diagonal line lengths of S17.

Parameter	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	-53.06	5.44	144.17	7.54	-5.24
Parameter	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	4.37	-5.63	3.89	5.10	3.41

Table 3

It can be obtained by table 1 and table 3, it is full between the second lens E2 effective focal length f2 and total effective focal length f of imaging lens system group Sufficient f2/f=1.40；Meet f4/f6=between 4th lens E4 effective focal length f4 and the 6th lens E6 effective focal length f6 1.72；Meet f7/f2=-1.04 between 7th lens E7 effective focal length f7 and the second lens E2 effective focal length f2；First Effective pixel area diagonal line length on distance TTL of the lens E1 thing side S1 to imaging surface S17 on optical axis and imaging surface S17 Half ImgH between meet TTL/ImgH=1.50；Total the effective focal length f and the 5th lens E5 of imaging lens system group thing side Meet f/R9=-2.10 between S9 radius of curvature R 9；5th lens E5 effective focal length f5 and the 5th lens E5 image side surface Meet f5/R10=1.26 between R10.

In the present embodiment, meet between total effective focal length f of imaging lens system group and the Entry pupil diameters EPD of imaging lens system group F/EPD=1.59, there is larger aperture.

Fig. 2A shows chromatic curve on the axle of the imaging lens system group of embodiment 1, its represent different wave length light via Converging focal point after lens group deviates.Fig. 2 B show the astigmatism curve of the imaging lens system group of embodiment 1, and it represents meridianal image surface Bending and sagittal image surface bending.Fig. 2 C show the distortion curve of the imaging lens system group of embodiment 1, and it represents different visual angles situation Under distortion sizes values.Fig. 2 D show the ratio chromatism, curve of the imaging lens system group of embodiment 1, and it represents light via lens The deviation of different image heights after group on imaging surface.Understood according to Fig. 2A to Fig. 2 D, the imaging lens system group given by embodiment 1 Good image quality can be realized.

Embodiment 2

Imaging lens system group referring to Fig. 3 to Fig. 4 D descriptions according to the embodiment of the present application 2.In the present embodiment and following reality Apply in example, for brevity, by clipped description similar to Example 1.Fig. 3 is shown according to the embodiment of the present application 2 The structural representation of imaging lens system group.

As shown in figure 3, imaging lens system group sequentially includes the first lens E1, the second lens along optical axis from thing side into image side E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7 and imaging surface S17.

First lens E1 has negative power, and its thing side S1 is concave surface, and image side surface S2 is concave surface, and the first lens E1 Thing side S1 and image side surface S2 is aspherical.

Second lens E2 has positive light coke, and its thing side S3 is convex surface, and image side surface S4 is convex surface, and the second lens E2 Thing side S3 and image side surface S4 is aspherical.

3rd lens E3 has negative power, and its thing side S5 is convex surface, and image side surface S6 is concave surface, and the 3rd lens E3 Thing side S5 and image side surface S6 is aspherical.

4th lens E4 has positive light coke, and its thing side S7 is concave surface, and image side surface S8 is convex surface, and the 4th lens E4 Thing side S7 and image side surface S8 is aspherical.

5th lens E5 has negative power, and its thing side S9 is convex surface, and image side surface S10 is concave surface, and the 5th lens E5 Thing side S9 and image side surface S10 be aspherical.

7th lens E7 has negative power, and its thing side S13 is concave surface, and image side surface S14 is concave surface, and the 7th lens E7 Thing side S13 and image side surface S14 be aspherical.

Table 4 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens system group of embodiment 2 Coefficient is bored, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 5 is shown available for each aspherical in embodiment 2 The high order term coefficient of minute surface, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 6 is shown In embodiment 2 the effective focal length f1 to f7 of each lens, total effective focal length f, the optics total length TTL of imaging lens system group and into The half ImgH of effective pixel area diagonal line length on image planes S17.

Table 4

Table 5

Parameter	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	-9.47	3.10	-148.02	6.42	-8.67
Parameter	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	6.48	-2.61	3.59	4.79	3.41

Table 6

Fig. 4 A show chromatic curve on the axle of the imaging lens system group of embodiment 2, its represent different wave length light via Converging focal point after lens group deviates.Fig. 4 B show the astigmatism curve of the imaging lens system group of embodiment 2, and it represents meridianal image surface Bending and sagittal image surface bending.Fig. 4 C show the distortion curve of the imaging lens system group of embodiment 2, and it represents different visual angles situation Under distortion sizes values.Fig. 4 D show the ratio chromatism, curve of the imaging lens system group of embodiment 2, and it represents light via lens The deviation of different image heights after group on imaging surface.Understood according to Fig. 4 A to Fig. 4 D, the imaging lens system group given by embodiment 2 Good image quality can be realized.

Embodiment 3

The imaging lens system group according to the embodiment of the present application 3 is described referring to Fig. 5 to Fig. 6 D.Fig. 5 is shown according to this Apply for the structural representation of the imaging lens system group of embodiment 3.

As shown in figure 5, imaging lens system group sequentially includes the first lens E1, the second lens along optical axis from thing side into image side E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7 and imaging surface S17.

Table 7 shows surface type, radius of curvature, thickness, material and the circle of each lens of the imaging lens system group of embodiment 3 Coefficient is bored, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 8 is shown available for each aspherical in embodiment 3 The high order term coefficient of minute surface, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 9 is shown In embodiment 3 the effective focal length f1 to f7 of each lens, total effective focal length f, the optics total length TTL of imaging lens system group and into The half ImgH of effective pixel area diagonal line length on image planes S17.

Table 7

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

-3.4681E-02

7.2701E-03

-1.0960E-04

-4.2344E-04

-1.7990E-04

1.6868E-04

-2.5746E-05

-2.9500E-06

7.6383E-08

S2

-3.2324E-02

4.1811E-03

2.7279E-04

-1.2308E-03

3.4354E-04

-2.0464E-04

2.4590E-05

8.0621E-08

-3.0697E-07

S3

1.4375E-02

-3.6219E-03

3.4403E-03

-2.1096E-03

2.0694E-03

-9.8514E-04

1.3997E-04

0.0000E+00

S4

-6.4181E-02

6.3809E-02

-4.9156E-02

3.6412E-02

-2.1331E-02

7.8258E-03

-1.2978E-03

0.0000E+00

S5

-3.5294E-02

-1.3805E-01

2.0489E-01

-1.3698E-01

1.2516E-02

4.5679E-02

-2.1612E-02

0.0000E+00

S6

3.1283E-03

-1.5096E-01

1.9515E-01

-1.0961E-01

1.8010E-02

2.0121E-02

-3.2208E-03

0.0000E+00

S7

-1.6281E-02

-5.6098E-02

3.2464E-02

-6.4990E-02

1.0021E-01

-7.5687E-02

2.6878E-02

0.0000E+00

S8

6.7944E-02

-5.7795E-01

9.5352E-01

-8.4334E-01

4.2047E-01

-1.0822E-01

9.7299E-03

0.0000E+00

S9

7.8928E-02

-6.1167E-01

8.2943E-01

-5.0619E-01

1.0100E-01

3.0876E-02

-1.4083E-02

0.0000E+00

S10

-1.4111E-01

-4.0688E-02

1.3825E-01

-9.9123E-02

3.2702E-02

-5.1265E-03

3.1016E-04

0.0000E+00

S11

3.7220E-02

-2.2998E-01

2.2303E-01

-1.9451E-01

1.1478E-01

-3.9344E-02

5.4751E-03

0.0000E+00

S12

1.3886E-01

-2.6107E-01

1.7252E-01

-6.7886E-02

1.6375E-02

-2.2120E-03

1.2598E-04

0.0000E+00

S13

-2.0772E-01

1.2295E-01

-3.0890E-02

4.0246E-03

-2.8140E-04

1.0050E-05

-1.4385E-07

0.0000E+00

S14

-8.3703E-02

4.2855E-02

-1.4409E-02

2.8001E-03

-2.9624E-04

1.5821E-05

-3.3402E-07

0.0000E+00

Table 8

Parameter	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	-11.29	3.21	-181.54	5.84	-7.67
Parameter	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	6.37	-2.54	3.62	4.79	3.41

Table 9

Fig. 6 A show chromatic curve on the axle of the imaging lens system group of embodiment 3, its represent different wave length light via Converging focal point after lens group deviates.Fig. 6 B show the astigmatism curve of the imaging lens system group of embodiment 3, and it represents meridianal image surface Bending and sagittal image surface bending.Fig. 6 C show the distortion curve of the imaging lens system group of embodiment 3, and it represents different visual angles situation Under distortion sizes values.Fig. 6 D show the ratio chromatism, curve of the imaging lens system group of embodiment 3, and it represents light via lens The deviation of different image heights after group on imaging surface.Understood according to Fig. 6 A to Fig. 6 D, the imaging lens system group given by embodiment 3 Good image quality can be realized.

Embodiment 4

The imaging lens system group according to the embodiment of the present application 4 is described referring to Fig. 7 to Fig. 8 D.Fig. 7 is shown according to this Apply for the structural representation of the imaging lens system group of embodiment 4.

As shown in fig. 7, imaging lens system group sequentially includes the first lens E1, the second lens along optical axis from thing side into image side E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7 and imaging surface S17.

Table 10 show the surface types of each lens of the imaging lens system group of embodiment 4, radius of curvature, thickness, material and Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 11 is shown available for each non-in embodiment 4 The high order term coefficient of spherical mirror surface, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 12 Show the effective focal length f1 to f7 of each lens in embodiment 4, total effective focal length f, the optics total length TTL of imaging lens system group with And on imaging surface S17 effective pixel area diagonal line length half ImgH.

Table 10

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

-4.1350E-02

6.9489E-03

4.5318E-04

3.1722E-05

-5.0623E-04

2.2098E-04

-2.5729E-05

-2.9510E-06

7.6503E-08

S2

-3.2350E-02

5.7484E-03

1.9648E-03

-9.6354E-04

2.8612E-04

-2.0477E-04

2.4584E-05

8.0621E-08

-3.0674E-07

S3

1.8053E-02

-1.1439E-02

1.4775E-02

-1.5138E-02

1.0711E-02

-3.7879E-03

4.8399E-04

0.0000E+00

S4

-7.3380E-02

8.5563E-02

-7.9326E-02

6.4999E-02

-4.0129E-02

1.5845E-02

-2.8898E-03

0.0000E+00

S5

-1.8599E-02

-1.7900E-01

2.8487E-01

-2.4802E-01

1.0108E-01

8.9390E-03

-1.5240E-02

0.0000E+00

S6

1.0217E-02

-1.5051E-01

1.9904E-01

-1.2402E-01

2.8805E-02

1.1892E-02

5.7805E-04

0.0000E+00

S7

-2.1925E-02

-4.4848E-02

4.8937E-02

-1.1544E-01

1.5690E-01

-1.2147E-01

4.3464E-02

0.0000E+00

S8

8.0341E-02

-9.1716E-01

1.7374E+00

-1.8058E+00

1.0832E+00

-3.5346E-01

4.7881E-02

0.0000E+00

S9

3.5187E-01

-1.5549E+00

2.7111E+00

-2.6499E+00

1.5131E+00

-4.7025E-01

6.0320E-02

0.0000E+00

S10

-4.7759E-02

-3.7019E-01

7.7787E-01

-7.6934E-01

4.2538E-01

-1.2639E-01

1.5717E-02

0.0000E+00

S11

-3.4428E-02

-9.0083E-02

7.5163E-02

-8.3447E-02

5.5183E-02

-2.0691E-02

3.1460E-03

0.0000E+00

S12

8.7241E-02

-1.7354E-01

1.0292E-01

-3.5814E-02

7.7733E-03

-9.5990E-04

5.0131E-05

0.0000E+00

S13

-1.6010E-01

1.0580E-01

-2.8412E-02

4.0032E-03

-3.0854E-04

1.2385E-05

-2.0308E-07

0.0000E+00

S14

-7.7010E-02

4.2784E-02

-1.5798E-02

3.4301E-03

-4.1887E-04

2.6707E-05

-6.8748E-07

0.0000E+00

Table 11

Parameter	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	-11.95	3.24	-229.49	5.76	-6.05
Parameter	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	5.34	-2.55	3.62	4.79	3.41

Table 12

Fig. 8 A show chromatic curve on the axle of the imaging lens system group of embodiment 4, its represent different wave length light via Converging focal point after lens group deviates.Fig. 8 B show the astigmatism curve of the imaging lens system group of embodiment 4, and it represents meridianal image surface Bending and sagittal image surface bending.Fig. 8 C show the distortion curve of the imaging lens system group of embodiment 4, and it represents different visual angles situation Under distortion sizes values.Fig. 8 D show the ratio chromatism, curve of the imaging lens system group of embodiment 4, and it represents light via lens The deviation of different image heights after group on imaging surface.Understood according to Fig. 8 A to Fig. 8 D, the imaging lens system group given by embodiment 4 Good image quality can be realized.

Embodiment 5

The imaging lens system group according to the embodiment of the present application 5 is described referring to Fig. 9 to Figure 10 D.Fig. 9 is shown according to this Apply for the structural representation of the imaging lens system group of embodiment 5.

As shown in figure 9, imaging lens system group sequentially includes the first lens E1, the second lens along optical axis from thing side into image side E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7 and imaging surface S17.

Table 13 show the surface types of each lens of the imaging lens system group of embodiment 5, radius of curvature, thickness, material and Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 14 is shown available for each non-in embodiment 5 The high order term coefficient of spherical mirror surface, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 15 Show the effective focal length f1 to f7 of each lens in embodiment 5, total effective focal length f, the optics total length TTL of imaging lens system group with And on imaging surface S17 effective pixel area diagonal line length half ImgH.

Table 13

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

-4.5039E-02

7.3848E-03

1.1989E-03

-1.4957E-04

-5.7205E-04

2.4292E-04

-2.5721E-05

-2.9510E-06

7.6446E-08

S2

-4.2278E-02

1.1052E-02

1.5062E-04

-3.6017E-04

1.8449E-04

-2.0481E-04

2.4587E-05

8.1593E-08

-3.0668E-07

S3

6.0817E-03

-3.7583E-03

6.1443E-04

-4.9018E-05

2.3448E-06

-6.5813E-08

7.9564E-10

0.0000E+00

S4

-7.2604E-02

8.5614E-02

-8.3174E-02

7.0035E-02

-4.3265E-02

1.6698E-02

-2.8824E-03

0.0000E+00

S5

-7.3362E-03

-2.1997E-01

3.8345E-01

-3.9987E-01

2.4939E-01

-7.1446E-02

3.1117E-03

0.0000E+00

S6

5.8587E-03

-1.4169E-01

1.8714E-01

-1.0707E-01

1.2189E-02

2.3567E-02

-3.5389E-03

0.0000E+00

S7

-2.0106E-02

-4.2062E-02

3.6255E-02

-8.1720E-02

1.1137E-01

-8.6837E-02

3.2573E-02

0.0000E+00

S8

-1.2176E-02

-6.7763E-01

1.3228E+00

-1.3585E+00

7.9421E-01

-2.5072E-01

3.2498E-02

0.0000E+00

S9

3.0378E-01

-1.3513E+00

2.2936E+00

-2.1675E+00

1.1951E+00

-3.5879E-01

4.4304E-02

0.0000E+00

S10

-4.2109E-02

-3.6670E-01

7.3764E-01

-7.0972E-01

3.8460E-01

-1.1301E-01

1.4024E-02

0.0000E+00

S11

-3.4658E-02

-9.6988E-02

9.0356E-02

-9.8244E-02

6.2947E-02

-2.2794E-02

3.3649E-03

0.0000E+00

S12

6.3694E-02

-1.5132E-01

8.7112E-02

-2.8851E-02

5.9284E-03

-6.9674E-04

3.4740E-05

0.0000E+00

S13

-1.7880E-01

1.1877E-01

-3.3372E-02

4.9639E-03

-4.0264E-04

1.6919E-05

-2.8861E-07

0.0000E+00

S14

-8.1470E-02

4.6220E-02

-1.7192E-02

3.7626E-03

-4.6530E-04

3.0169E-05

-7.9193E-07

0.0000E+00

Table 14

Parameter	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	-11.74	3.18	-115.89	5.88	-6.62
Parameter	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	5.82	-2.58	3.63	4.79	3.41

Table 15

Figure 10 A show chromatic curve on the axle of the imaging lens system group of embodiment 5, its represent different wave length light via Converging focal point after lens group deviates.Figure 10 B show the astigmatism curve of the imaging lens system group of embodiment 5, and it represents meridian picture Face is bent and sagittal image surface bending.Figure 10 C show the distortion curve of the imaging lens system group of embodiment 5, and it represents different visual angles In the case of distortion sizes values.Figure 10 D show the ratio chromatism, curve of the imaging lens system group of embodiment 5, and it represents light warp By the deviation of the different image heights after lens group on imaging surface.Understood according to Figure 10 A to Figure 10 D, taking the photograph given by embodiment 5 As lens group can realize good image quality.

Embodiment 6

The imaging lens system group according to the embodiment of the present application 6 is described referring to Figure 11 to Figure 12 D.Figure 11 shows basis The structural representation of the imaging lens system group of the embodiment of the present application 6.

As shown in figure 11, imaging lens system group along optical axis from thing side to sequentially including the first lens E1, second saturating into image side Mirror E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7 and imaging surface S17.

5th lens E5 has negative power, and its thing side S9 is concave surface, and image side surface S10 is concave surface, and the 5th lens E5 Thing side S9 and image side surface S10 be aspherical.

Table 16 show the surface types of each lens of the imaging lens system group of embodiment 6, radius of curvature, thickness, material and Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 17 is shown available for each non-in embodiment 6 The high order term coefficient of spherical mirror surface, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 18 Show the effective focal length f1 to f7 of each lens in embodiment 6, total effective focal length f, the optics total length TTL of imaging lens system group with And on imaging surface S17 effective pixel area diagonal line length half ImgH.

Table 16

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

-2.7182E-02

1.0322E-02

-8.3968E-04

-8.3890E-04

2.2425E-05

1.3684E-04

-2.5726E-05

-2.9511E-06

7.6655E-08

S2

3.4309E-03

4.8567E-03

4.1057E-04

-7.4422E-04

3.0322E-04

-2.0480E-04

2.4592E-05

7.9947E-08

-3.0692E-07

S3

7.9444E-03

1.2327E-02

-1.2075E-02

6.6302E-03

-1.8892E-04

-1.0576E-03

2.9745E-04

0.0000E+00

S4

-6.7531E-02

7.6452E-02

-7.8034E-02

6.8180E-02

-4.1100E-02

1.4897E-02

-2.4063E-03

0.0000E+00

S5

7.9289E-04

-1.6572E-01

2.4594E-01

-2.1257E-01

9.5492E-02

4.1027E-04

-1.2141E-02

0.0000E+00

S6

4.2463E-02

-1.8419E-01

2.5232E-01

-1.9995E-01

9.7543E-02

-1.6178E-02

2.6890E-03

0.0000E+00

S7

-2.8270E-02

-5.1666E-02

7.5578E-02

-1.7486E-01

2.2469E-01

-1.5755E-01

5.1341E-02

0.0000E+00

S8

4.8395E-02

-6.2857E-01

1.1971E+00

-1.2510E+00

7.6606E-01

-2.5812E-01

3.6513E-02

0.0000E+00

S9

1.5402E-01

-9.4111E-01

1.5325E+00

-1.3308E+00

6.5270E-01

-1.6392E-01

1.3665E-02

0.0000E+00

S10

-3.6281E-02

-3.8396E-01

7.1381E-01

-6.4407E-01

3.3137E-01

-9.3037E-02

1.0924E-02

0.0000E+00

S11

-2.7283E-02

-1.0317E-01

8.5264E-02

-7.6946E-02

4.3431E-02

-1.4729E-02

2.2354E-03

0.0000E+00

S12

1.3520E-01

-1.7738E-01

8.6640E-02

-2.4183E-02

4.1872E-03

-4.1912E-04

1.8020E-05

0.0000E+00

S13

-2.5995E-01

1.8278E-01

-5.8090E-02

1.0395E-02

-1.0704E-03

5.8439E-05

-1.2862E-06

0.0000E+00

S14

-9.7142E-02

5.9956E-02

-2.2364E-02

4.7972E-03

-5.7636E-04

3.6092E-05

-9.1279E-07

0.0000E+00

Table 17

Table 18

Figure 12 A show chromatic curve on the axle of the imaging lens system group of embodiment 6, its represent different wave length light via Converging focal point after lens group deviates.Figure 12 B show the astigmatism curve of the imaging lens system group of embodiment 6, and it represents meridian picture Face is bent and sagittal image surface bending.Figure 12 C show the distortion curve of the imaging lens system group of embodiment 6, and it represents different visual angles In the case of distortion sizes values.Figure 12 D show the ratio chromatism, curve of the imaging lens system group of embodiment 6, and it represents light warp By the deviation of the different image heights after lens group on imaging surface.Understood according to Figure 12 A to Figure 12 D, taking the photograph given by embodiment 6 As lens group can realize good image quality.

Embodiment 7

The imaging lens system group according to the embodiment of the present application 7 is described referring to Figure 13 to Figure 14 D.Figure 13 shows basis The structural representation of the imaging lens system group of the embodiment of the present application 7.

As shown in figure 13, imaging lens system group along optical axis from thing side to sequentially including the first lens E1, second saturating into image side Mirror E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7 and imaging surface S17.

Table 19 show the surface types of each lens of the imaging lens system group of embodiment 7, radius of curvature, thickness, material and Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 20 is shown available for each non-in embodiment 7 The high order term coefficient of spherical mirror surface, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 21 Show the effective focal length f1 to f7 of each lens in embodiment 7, total effective focal length f, the optics total length TTL of imaging lens system group with And on imaging surface S17 effective pixel area diagonal line length half ImgH.

Table 19

Table 20

Parameter	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	-9.69	2.94	-66.78	6.93	-9.25
Parameter	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	5.82	-2.49	3.68	4.79	3.41

Table 21

Figure 14 A show chromatic curve on the axle of the imaging lens system group of embodiment 7, its represent different wave length light via Converging focal point after lens group deviates.Figure 14 B show the astigmatism curve of the imaging lens system group of embodiment 7, and it represents meridian picture Face is bent and sagittal image surface bending.Figure 14 C show the distortion curve of the imaging lens system group of embodiment 7, and it represents different visual angles In the case of distortion sizes values.Figure 14 D show the ratio chromatism, curve of the imaging lens system group of embodiment 7, and it represents light warp By the deviation of the different image heights after lens group on imaging surface.Understood according to Figure 14 A to Figure 14 D, taking the photograph given by embodiment 7 As lens group can realize good image quality.

Embodiment 8

The imaging lens system group according to the embodiment of the present application 8 is described referring to Figure 15 to Figure 16 D.Figure 15 shows basis The structural representation of the imaging lens system group of the embodiment of the present application 8.

As shown in figure 15, imaging lens system group along optical axis from thing side to sequentially including the first lens E1, second saturating into image side Mirror E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7 and imaging surface S17.

Table 22 show the surface types of each lens of the imaging lens system group of embodiment 8, radius of curvature, thickness, material and Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 23 is shown available for each non-in embodiment 8 The high order term coefficient of spherical mirror surface, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 24 Show the effective focal length f1 to f7 of each lens in embodiment 8, total effective focal length f, the optics total length TTL of imaging lens system group with And on imaging surface S17 effective pixel area diagonal line length half ImgH.

Table 22

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

-3.2075E-02

1.1887E-02

-7.5370E-04

-9.2715E-04

-4.5944E-05

1.6676E-04

-2.6844E-05

-2.9520E-06

7.6672E-08

S2

-4.4449E-03

7.0168E-03

1.0881E-03

-1.6549E-03

5.0258E-04

-2.0483E-04

2.4593E-05

8.0104E-08

-3.0692E-07

S3

8.7969E-03

1.2603E-02

-1.3985E-02

1.2437E-02

-6.6425E-03

2.4902E-03

-4.6513E-04

0.0000E+00

S4

-7.5241E-02

1.0103E-01

-1.1023E-01

9.7711E-02

-5.8672E-02

2.1198E-02

-3.4876E-03

0.0000E+00

S5

-5.1719E-03

-1.3316E-01

2.0654E-01

-1.8325E-01

8.5805E-02

-2.9896E-03

-1.0026E-02

0.0000E+00

S6

2.4311E-02

-1.2724E-01

1.7346E-01

-1.1609E-01

3.4007E-02

1.2212E-02

-3.0230E-03

0.0000E+00

S7

-2.2267E-02

-7.7193E-02

1.4276E-01

-2.9830E-01

3.6208E-01

-2.4260E-01

7.4691E-02

0.0000E+00

S8

9.7890E-02

-7.3982E-01

1.3238E+00

-1.3378E+00

8.0304E-01

-2.6761E-01

3.7634E-02

0.0000E+00

S9

1.4858E-01

-8.7666E-01

1.4341E+00

-1.2381E+00

6.1209E-01

-1.5897E-01

1.4741E-02

0.0000E+00

S10

-1.0525E-01

-2.1709E-01

4.9862E-01

-4.7279E-01

2.5112E-01

-7.2858E-02

8.8010E-03

0.0000E+00

S11

-8.1629E-03

-1.3010E-01

1.1665E-01

-1.0541E-01

6.0305E-02

-1.9935E-02

2.8436E-03

0.0000E+00

S12

1.5008E-01

-2.0645E-01

1.0782E-01

-3.2978E-02

6.2210E-03

-6.6064E-04

2.9425E-05

0.0000E+00

S13

-2.0996E-01

1.4372E-01

-4.2394E-02

6.8024E-03

-5.9475E-04

2.4635E-05

-2.9974E-07

0.0000E+00

S14

-9.2871E-02

5.4360E-02

-2.0018E-02

4.2808E-03

-5.1171E-04

3.1768E-05

-7.9339E-07

0.0000E+00

Table 23

Parameter	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	-9.60	3.13	1291.19	6.05	-6.47
Parameter	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	5.15	-2.51	3.56	4.79	3.41

Table 24

Figure 16 A show chromatic curve on the axle of the imaging lens system group of embodiment 8, its represent different wave length light via Converging focal point after lens group deviates.Figure 16 B show the astigmatism curve of the imaging lens system group of embodiment 8, and it represents meridian picture Face is bent and sagittal image surface bending.Figure 16 C show the distortion curve of the imaging lens system group of embodiment 8, and it represents different visual angles In the case of distortion sizes values.Figure 16 D show the ratio chromatism, curve of the imaging lens system group of embodiment 8, and it represents light warp By the deviation of the different image heights after lens group on imaging surface.Understood according to Figure 16 A to Figure 16 D, taking the photograph given by embodiment 8 As lens group can realize good image quality.

Embodiment 9

The imaging lens system group according to the embodiment of the present application 9 is described referring to Figure 17 to Figure 18 D.Figure 17 shows basis The structural representation of the imaging lens system group of the embodiment of the present application 9.

As shown in figure 17, imaging lens system group along optical axis from thing side to sequentially including the first lens E1, second saturating into image side Mirror E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7 and imaging surface S17.

Table 25 show the surface types of each lens of the imaging lens system group of embodiment 9, radius of curvature, thickness, material and Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 26 is shown available for each non-in embodiment 9 The high order term coefficient of spherical mirror surface, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 27 Show the effective focal length f1 to f7 of each lens in embodiment 9, total effective focal length f, the optics total length TTL of imaging lens system group with And on imaging surface S17 effective pixel area diagonal line length half ImgH.

Table 25

Table 26

Parameter	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	-58.02	4.88	-32.98	8.01	-5.45
Parameter	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	4.24	-5.90	3.92	5.30	3.41

Table 27

Figure 18 A show chromatic curve on the axle of the imaging lens system group of embodiment 9, its represent different wave length light via Converging focal point after lens group deviates.Figure 18 B show the astigmatism curve of the imaging lens system group of embodiment 9, and it represents meridian picture Face is bent and sagittal image surface bending.Figure 18 C show the distortion curve of the imaging lens system group of embodiment 9, and it represents different visual angles In the case of distortion sizes values.Figure 18 D show the ratio chromatism, curve of the imaging lens system group of embodiment 9, and it represents light warp By the deviation of the different image heights after lens group on imaging surface.Understood according to Figure 18 A to Figure 18 D, taking the photograph given by embodiment 9 As lens group can realize good image quality.

Embodiment 10

The imaging lens system group according to the embodiment of the present application 10 is described referring to Figure 19 to Figure 20 D.Figure 19 shows root According to the structural representation of the imaging lens system group of the embodiment of the present application 10.

As shown in figure 19, imaging lens system group along optical axis from thing side to sequentially including the first lens E1, second saturating into image side Mirror E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7 and imaging surface S17.

Table 28 show the surface types of each lens of the imaging lens system group of embodiment 10, radius of curvature, thickness, material and Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 29 is shown available for each non-in embodiment 10 The high order term coefficient of spherical mirror surface, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 30 Show the effective focal length f1 to f7 of each lens in embodiment 10, total effective focal length f of imaging lens system group, optics total length TTL And on imaging surface S17 effective pixel area diagonal line length half ImgH.

Table 28

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

-3.6392E-03

5.1950E-03

4.7325E-04

-6.4256E-04

-2.4419E-04

1.0832E-04

-2.5728E-05

-2.9503E-06

7.6610E-08

S2

9.6232E-03

5.2081E-03

2.0816E-03

3.4628E-04

-6.5692E-04

-2.0480E-04

2.4589E-05

8.0134E-08

-3.0700E-07

S3

2.4549E-02

2.3889E-02

-7.2442E-02

1.1397E-01

-1.0088E-01

4.6033E-02

-8.6866E-03

0.0000E+00

S4

-8.8411E-02

2.5235E-02

2.4680E-02

-5.9640E-02

4.9409E-02

-1.7482E-02

1.7391E-03

0.0000E+00

S5

9.4505E-03

-1.8066E-01

2.9330E-01

-1.7284E-01

-2.2519E-02

8.3945E-02

-3.0374E-02

0.0000E+00

S6

-9.6145E-03

-6.2935E-03

-4.6611E-03

1.7531E-01

-2.8955E-01

1.9864E-01

-4.6669E-02

0.0000E+00

S7

-4.6536E-02

2.9916E-02

-1.5089E-01

2.1143E-01

-1.4341E-01

-5.1781E-04

2.6741E-02

0.0000E+00

S8

-6.2656E-02

4.5185E-02

-1.6949E-01

2.1339E-01

-1.7668E-01

8.7850E-02

-1.8544E-02

0.0000E+00

S9

-8.6219E-02

7.4854E-02

-2.2713E-01

2.5267E-01

-8.5941E-02

-1.0534E-04

2.1265E-03

0.0000E+00

S10

-2.3098E-01

2.1440E-01

-1.9434E-01

1.1898E-01

-4.2139E-03

-2.1037E-02

5.1883E-03

0.0000E+00

S11

-9.4741E-02

9.1845E-02

-1.5391E-01

1.2456E-01

-5.6962E-02

1.3468E-02

-1.2421E-03

0.0000E+00

S12

1.7378E-01

-2.1136E-01

1.1777E-01

-4.0945E-02

8.6030E-03

-9.6678E-04

4.3910E-05

0.0000E+00

S13

-3.6835E-01

1.6901E-01

-4.6267E-02

9.3161E-03

-1.3262E-03

1.1277E-04

-4.1482E-06

0.0000E+00

S14

-1.8750E-01

9.7385E-02

-3.7184E-02

9.2920E-03

-1.3756E-03

1.0818E-04

-3.4371E-06

0.0000E+00

Table 29

Parameter	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	-54.76	4.97	-41.27	7.65	-5.25
Parameter	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	4.27	-5.91	3.92	5.28	3.41

Table 30

Figure 20 A show chromatic curve on the axle of the imaging lens system group of embodiment 10, and it represents the light warp of different wave length Deviateed by the converging focal point after lens group.Figure 20 B show the astigmatism curve of the imaging lens system group of embodiment 10, and it represents meridian Curvature of the image and sagittal image surface bending.Figure 20 C show the distortion curve of the imaging lens system group of embodiment 10, and it represents that difference regards Distortion sizes values in the case of angle.Figure 20 D show the ratio chromatism, curve of the imaging lens system group of embodiment 10, and it represents light Via the deviation of the different image heights after lens group on imaging surface.Understood according to Figure 20 A to Figure 20 D, given by embodiment 10 Imaging lens system group can realize good image quality.

Embodiment 11

The imaging lens system group according to the embodiment of the present application 11 is described referring to Figure 21 to Figure 22 D.Figure 21 shows root According to the structural representation of the imaging lens system group of the embodiment of the present application 11.

As shown in figure 21, imaging lens system group along optical axis from thing side to sequentially including the first lens E1, second saturating into image side Mirror E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7 and imaging surface S17.

First lens E1 has positive light coke, and its thing side S1 is convex surface, and image side surface S2 is concave surface, and the first lens E1 Thing side S1 and image side surface S2 is aspherical.

Table 31 show the surface types of each lens of the imaging lens system group of embodiment 11, radius of curvature, thickness, material and Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 32 is shown available for each non-in embodiment 11 The high order term coefficient of spherical mirror surface, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 33 Show the effective focal length f1 to f7 of each lens in embodiment 11, total effective focal length f of imaging lens system group, optics total length TTL And on imaging surface S17 effective pixel area diagonal line length half ImgH.

Table 31

Table 32

Parameter	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	709.06	3.86	-11.15	8.10	-21.01
Parameter	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	7.44	-4.40	3.85	5.13	3.34

Table 33

Figure 22 A show chromatic curve on the axle of the imaging lens system group of embodiment 11, and it represents the light warp of different wave length Deviateed by the converging focal point after lens group.Figure 22 B show the astigmatism curve of the imaging lens system group of embodiment 11, and it represents meridian Curvature of the image and sagittal image surface bending.Figure 22 C show the distortion curve of the imaging lens system group of embodiment 11, and it represents that difference regards Distortion sizes values in the case of angle.Figure 22 D show the ratio chromatism, curve of the imaging lens system group of embodiment 11, and it represents light Via the deviation of the different image heights after lens group on imaging surface.Understood according to Figure 22 A to Figure 22 D, given by embodiment 11 Imaging lens system group can realize good image quality.

Embodiment 12

The imaging lens system group according to the embodiment of the present application 12 is described referring to Figure 23 to Figure 24 D.Figure 23 shows root According to the structural representation of the imaging lens system group of the embodiment of the present application 12.

As shown in figure 23, imaging lens system group along optical axis from thing side to sequentially including the first lens E1, second saturating into image side Mirror E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5, the 6th lens E6, the 7th lens E7 and imaging surface S17.

Table 34 show the surface types of each lens of the imaging lens system group of embodiment 12, radius of curvature, thickness, material and Circular cone coefficient, wherein, the unit of radius of curvature and thickness is millimeter (mm).Table 35 is shown available for each non-in embodiment 12 The high order term coefficient of spherical mirror surface, wherein, each aspherical face type can be limited by the formula (1) provided in above-described embodiment 1.Table 36 Show the effective focal length f1 to f7 of each lens in embodiment 12, total effective focal length f of imaging lens system group, optics total length TTL And on imaging surface S17 effective pixel area diagonal line length half ImgH.

Table 34

Face number

A4

A6

A8

A10

A12

A14

A16

A18

A20

S1

-1.9592E-02

6.2773E-02

-2.2113E-01

4.4693E-01

-5.3082E-01

3.8953E-01

-1.7417E-01

4.3418E-02

-4.6108E-03

S2

-1.7744E-02

9.2119E-04

-7.7150E-02

3.2820E-01

-5.7678E-01

5.8333E-01

-3.5226E-01

1.1685E-01

-1.6173E-02

S3

4.9660E-02

7.5843E-02

-3.1599E-01

6.4292E-01

-6.8663E-01

3.7516E-01

-8.8289E-02

0.0000E+00

S4

-1.6608E-01

2.9835E-01

-3.6178E-01

3.0693E-01

-1.9112E-01

5.3281E-02

0.0000E+00

S5

-1.2368E-01

1.4887E-01

6.2024E-02

-1.7567E-01

8.3709E-02

0.0000E+00

S6

3.7495E-02

-9.4062E-04

1.7725E-01

-2.5762E-01

1.4809E-01

0.0000E+00

S7

-1.5576E-01

1.1777E+00

-8.9196E+00

3.8276E+01

-1.0154E+02

1.6793E+02

-1.6842E+02

9.3604E+01

-2.2056E+01

S8

-6.8751E-02

-2.3699E-01

1.4716E+00

-5.3923E+00

1.1328E+01

-1.4461E+01

1.1132E+01

-4.7504E+00

8.6540E-01

S9

6.9254E-02

-2.9567E-01

6.1834E-01

-1.2087E+00

1.8191E+00

-1.7653E+00

1.0645E+00

-3.6986E-01

5.5977E-02

S10

-3.7390E-01

8.3669E-01

-1.5812E+00

2.1070E+00

-1.8515E+00

1.0933E+00

-4.2219E-01

9.5287E-02

-9.3901E-03

S11

-4.2604E-02

-1.1600E-01

2.5030E-01

-3.4099E-01

2.8877E-01

-1.5284E-01

4.8125E-02

-8.1116E-03

5.5944E-04

S12

1.9437E-02

-4.4310E-02

1.5459E-03

1.6830E-02

-1.1931E-02

3.8657E-03

-6.3143E-04

4.7531E-05

-1.1123E-06

S13

-2.2986E-01

8.1815E-02

7.4744E-04

-8.7918E-03

3.0353E-03

-5.2695E-04

5.1591E-05

-2.6853E-06

5.6904E-08

S14

-1.2587E-01

5.5079E-02

-1.6207E-02

3.1681E-03

-4.0846E-04

3.5890E-05

-3.1434E-06

3.0364E-07

-1.4249E-08

Table 35

Parameter	f1(mm)	f2(mm)	f3(mm)	f4(mm)	f5(mm)
						Numerical value	368.78	4.35	-17.49	7.39	-28.92
Parameter	f6(mm)	f7(mm)	f(mm)	TTL(mm)	ImgH(mm)
						Numerical value	7.31	-4.62	3.56	4.95	3.29

Table 36

Figure 24 A show chromatic curve on the axle of the imaging lens system group of embodiment 12, and it represents the light warp of different wave length Deviateed by the converging focal point after lens group.Figure 24 B show the astigmatism curve of the imaging lens system group of embodiment 12, and it represents meridian Curvature of the image and sagittal image surface bending.Figure 24 C show the distortion curve of the imaging lens system group of embodiment 12, and it represents that difference regards Distortion sizes values in the case of angle.Figure 24 D show the ratio chromatism, curve of the imaging lens system group of embodiment 12, and it represents light Via the deviation of the different image heights after lens group on imaging surface.Understood according to Figure 24 A to Figure 24 D, given by embodiment 12 Imaging lens system group can realize good image quality.

To sum up, embodiment 1 to embodiment 12 meets the relation shown in table 37 respectively.

Table 37

The application also provides a kind of camera device, and its electronics photo-sensitive cell can be photosensitive coupling element (CCD) or complementation Property matal-oxide semiconductor element (CMOS).Camera device can be such as digital camera independent picture pick-up device or The photographing module being integrated on the mobile electronic devices such as mobile phone.The camera device is equipped with imaging lens system described above Group.

Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the particular combination of above-mentioned technical characteristic forms Scheme, while should also cover in the case where not departing from the inventive concept, carried out by above-mentioned technical characteristic or its equivalent feature The other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein The technical scheme that the technical characteristic of energy is replaced mutually and formed.

Claims

1. imaging lens system group, sequentially included by thing side to image side along optical axis：The first lens, the second lens with focal power, 3rd lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens, it is characterised in that

Second lens have positive light coke, and its thing side is convex surface；

The thing side of 3rd lens is convex surface, and image side surface is concave surface；

The thing side of 6th lens is convex surface, and image side surface is concave surface；

The image side surface of 7th lens is concave surface；

4th lens are in the center thickness CT4 on the optical axis and the 5th lens in the center thickness on the optical axis CT5 meets CT4/CT5 ＞ 1.5.

2. imaging lens system group according to claim 1, it is characterised in that total effective focal length f of the imaging lens system group with The Entry pupil diameters EPD of the imaging lens system group meets f/EPD≤1.65.

3. imaging lens system group according to claim 1 or 2, it is characterised in that the effective focal length f2 of second lens with Total effective focal length f of the imaging lens system group meets 0.5 ＜ f2/f ＜ 1.5.

4. imaging lens system group according to claim 3, it is characterised in that the effective focal length f4 of the 4th lens with it is described The effective focal length f6 of 6th lens meets 0.5 ＜ f4/f6 ＜ 2.

5. imaging lens system group according to claim 1, it is characterised in that the 7th lens have negative power, and it has The effective focal length f2 for imitating focal length f7 and second lens meets -1.5 ＜ f7/f2 ＜ -0.5.

6. imaging lens system group according to claim 1, it is characterised in that the radius of curvature R 6 of the 3rd lens image side surface Meet -0.5 ＜ R6/R4 ＜ 0.8 with the radius of curvature R 4 of the second lens image side surface.

7. imaging lens system group according to claim 1, it is characterised in that the radius of curvature R 7 of the 4th lens thing side Meet 0 ＜ (R7+R8)/(R7-R8)≤1.5 with the radius of curvature R 8 of the 4th lens image side surface.

8. imaging lens system group according to claim 1, it is characterised in that total effective focal length f of the imaging lens system group with The radius of curvature R 9 of the 5th lens thing side meets -3.5 ＜ f/R9 ＜ 0.5.

9. imaging lens system group according to claim 1, it is characterised in that the effective focal length f5 of the 5th lens with it is described The radius of curvature R 10 of 5th lens image side surface meets -2 ＜ f5/R10 ＜ 22.

10. imaging lens system group according to claim 1, it is characterised in that the radius of curvature of the 6th lens thing side R11 and the 6th lens image side surface radius of curvature R 12 meet 1.5 ＜ | R11+R12 |/| R11-R12 | ＜ 3.5.

11. imaging lens system group according to claim 1, it is characterised in that the radius of curvature of the 6th lens image side surface R12 and the radius of curvature R 11 of the 6th lens thing side meet 1.5 ＜ R12/R11 ＜ 4.0.

12. imaging lens system group according to claim 1, it is characterised in that the 6th lens and the 7th lens exist The spacing distance T67 and spacing distance T56 of the 5th lens and the 6th lens on the optical axis on the optical axis Meet 4 ＜ T67/T56 ＜ 14.

13. according to the imaging lens system group any one of claim 1,4 to 12, it is characterised in that first lens are extremely 7th lens are saturating to the shooting respectively at the thing side of the center thickness ∑ CT on the optical axis and first lens Distance TTL of the microscope group imaging surface on the optical axis meets 0.5≤∑ CT/TTL≤0.7.

14. according to the imaging lens system group any one of claim 1,4 to 12, it is characterised in that first lens Distance TTL of the thing side to imaging lens system composition image planes on the optical axis is formed in image planes effectively with the imaging lens system The half ImgH of pixel region diagonal line length meets TTL/ImgH≤1.60.

15. imaging lens system group, sequentially included by thing side to image side along optical axis：The first lens, the second lens with focal power, 3rd lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens, it is characterised in that

The thing side of second lens is convex surface；

The image side surface of 7th lens is concave surface；

The effective focal length f4 of 4th lens meets 0.5 ＜ f4/f6 ＜ 2 with the effective focal length f6 of the 6th lens.