CN105988184B - Phtographic lens group, image-taking device and electronic device - Google Patents

Abstract

A kind of phtographic lens group of present invention offer, image-taking device and electronic device, the phtographic lens group include sequentially by object side to image side：The first lens with positive refracting power, object side are convex surface at dipped beam axis；The second lens with negative refracting power；The third lens with refracting power；The 4th lens with refracting power, object side and image side surface are all aspherical；And the 5th lens with refracting power, object side is convex surface at dipped beam axis, and its object side and image side surface are all aspherical, and an at least surface is equipped with an at least point of inflexion in the object side and image side surface.The phtographic lens group is separately provided with an aperture, and without the lens with refracting power between the aperture and first lens.Under aforementioned structure configuration, light beam aggregate capabilities can be promoted, effective control system overall length simultaneously adjusts the configuration of the first lens and the second lens so that subrange has higher resolution ratio.The present invention has small and high image quality advantageous effect.

Description

Phtographic lens group, image-taking device and electronic device

Technical field

The present invention relates to a kind of phtographic lens group and image-taking device, especially with regard to a kind of electronic device that can be applied to Phtographic lens group and image-taking device.

Background technology

As personal electric product is gradually lightening, each spare part is requested to have smaller size inside electronic product. The size of phtographic lens group faces the requirement having necessarily become smaller under market trend.In addition to requirement compact in size, because half The progress of conductor manufacturing process technology makes the elemental area of photosensitive element reduce, and phtographic lens synchronizes gradually toward high pixel neighborhoods Development.Meanwhile the electronic devices such as the smart mobile phone of rise and tablet computer also promote the demand of high-quality minisize photography lens group.

The optical system of traditional vista shot (Telephoto) mostly uses multiple-piece construction and carries spherical glass lens, Such configuration not only causes camera lens volume excessive without portable, and the design of its refracting power is easy to cause light beam aggregate capabilities not Good, aberration and aberration problem etc..In addition, the bad travel space for easily making light beam of the configuration of lens spacing and lens thickness is insufficient, And aberration is caused to generate with higher order aberratons because of insufficient space.

In conclusion being badly in need of a kind of phtographic lens group meeting miniature requirement and high image quality in field.

Invention content

A kind of phtographic lens group of present invention offer, image-taking device and electronic device, to meet miniaturization and high image quality Demand.

The present invention provides a kind of phtographic lens group, includes sequentially by object side to image side：One first lens have positive flexion Power, object side are convex surface at dipped beam axis；One second lens have negative refracting power；One the third lens have refracting power；One 4th lens have refracting power, and object side and image side surface are all aspherical；And one the 5th lens, there is refracting power, object side Face is convex surface at dipped beam axis, and its object side and image side surface are all aspherical, and an at least table in its object side and image side surface Face is equipped with an at least point of inflexion；Phtographic lens group is separately provided with an aperture, and in the wrong without having between the aperture and first lens Roll over the lens of power；The lens with refracting power are five in the phtographic lens group；Between second lens and the third lens in Distance on optical axis is T23, which is T34 at a distance from optical axis between the 4th lens, second lens in Thickness on optical axis is CT2, which is CT3 in the thickness on optical axis, and the 4th lens are in the thickness on optical axis CT4, the 5th lens are CT5 in the thickness on optical axis, and the focal length of the phtographic lens group is f, and the focal length of first lens is f1, The focal length of second lens is f2, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, the aperture to the 5th Lens image side surface is SD in the distance on optical axis, and the first lens object side to the 5th lens image side surface is in the distance on optical axis For TD, meet following relationship：

0.90<(T23+T34)/(CT3+CT4+CT5)；

(|f/f4|+|f/f5|)/(|f/f1|+|f/f2|)<0.60；

0.7<SD/TD<1.1；And

1.0<(CT2+CT4)/(CT2-CT4)。

The present invention separately provides a kind of image-taking device, including aforementioned phtographic lens group and an electronics photosensitive element.

The present invention provides a kind of electronic device again, including aforementioned image-taking device.

The present invention provides a kind of phtographic lens group again, includes sequentially by object side to image side：One first lens have positive flexion Power, object side are convex surface at dipped beam axis；One second lens, it is convex surface at dipped beam axis to have negative refracting power, object side, Its image side surface is concave surface at dipped beam axis；One the third lens have refracting power；One the 4th lens have negative refracting power, object side Face and image side surface are all aspherical；And one the 5th lens, it is concave surface, object side at dipped beam axis to have refracting power, image side surface Face and image side surface are all aspherical, and an at least surface is equipped with an at least point of inflexion in its object side and image side surface；Phtographic lens Group is separately provided with an aperture, and without the lens with refracting power between the aperture and first lens；Have in the phtographic lens group It is five to have the lens of refracting power；Second lens between the third lens at a distance from optical axis be T23, the third lens Between the 4th lens at a distance from optical axis be T34, the third lens in the thickness on optical axis be CT3, the 4th lens It is CT4 in the thickness on optical axis, the 5th lens are CT5 in the thickness on optical axis, and the focal length of the phtographic lens group is f, this The focal length of one lens is f1, and the focal length of second lens is f2, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is F5, the aperture to the 5th lens image side surface are SD, the first lens object side to the 5th lens picture in the distance on optical axis Side is TD in the distance on optical axis, meets following relationship：

0.90<(T23+T34)/(CT3+CT4+CT5)；

(|f/f4|+|f/f5|)/(|f/f1|+|f/f2|)<1.0；

0.7<SD/TD<1.1；And

0.3<CT4/CT3<2.5。

The present invention separately provides a kind of phtographic lens group, includes sequentially by object side to image side：One first lens have positive flexion Power, object side are convex surface at dipped beam axis；One second lens have negative refracting power；One the third lens have refracting power；One 4th lens, it is concave surface at dipped beam axis to have negative refracting power, object side, and object side and image side surface are all aspherical；And One the 5th lens, it is concave surface at dipped beam axis to have refracting power, image side surface, and object side and image side surface are all aspherical, and An at least surface is equipped with an at least point of inflexion in its object side and image side surface；Phtographic lens group is separately provided with an aperture, and the light Without the lens with refracting power between circle and first lens；The lens with refracting power are five in the phtographic lens group；It should Second lens between the third lens at a distance from optical axis be T23, in optical axis between the third lens and the 4th lens On distance be T34, the third lens in the thickness on optical axis be CT3, the 4th lens in the thickness on optical axis be CT4, should 5th lens are CT5 in the thickness on optical axis, and the focal length of the phtographic lens group is f, and the focal length of first lens is f1, this second The focal length of lens is f2, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, the aperture to the 5th lens picture Side is SD in the distance on optical axis, and the first lens object side to the 5th lens image side surface is TD in the distance on optical axis, Meet following relationship：

0.90<(T23+T34)/(CT3+CT4+CT5)；

(|f/f4|+|f/f5|)/(|f/f1|+|f/f2|)<1.0；

0.7<SD/TD<1.1；And

0.3<CT4/CT3<2.5。

First lens design of the aforementioned phtographic lens group of the present invention is the lens with positive refracting power, to promote light beam remittance Cumulative power and effectively control system overall length, which has negative refracting power, in favor of correcting caused by first lens Aberration, and the aberration that makes corrections simultaneously, and the configuration of first lens and second lens can be conducive to form (Telephoto) knot of looking in the distance Structure makes subrange have higher resolution ratio.

It, can be by the lens spacing in mixing system stage casing when (T23+T34)/(CT3+CT4+CT5) meets the condition And the lens thickness at nearly image side end, so that light beam is possessed sufficient space correction because of aberration caused by overall space compression.

When SD/TD meets the condition, can in control into angular and meanwhile also can balance system overall length, avoid system body Product is excessive.

When (| f/f4 |+| f/f5 |)/(| f/f1 |+| f/f2 |) meet the condition when, the system control of near the object end can be strengthened Ability processed, and image side end lens are promoted in the correction effect of higher order aberratons.

When (CT2+CT4)/(CT2-CT4) meets the condition, the effect light path of the second lens can be strengthened, and mitigate the The refracting power of four lens configures, and with correcting system marginal aberration, and then reaches preferable vista shot quality.

When CT4/CT3 meets the condition, lens thickness can be effectively controlled, to promote product manufacturing, and is reduced quick Sensitivity.

Description of the drawings

Figure 1A is the image-taking device schematic diagram of first embodiment of the invention.

Figure 1B is the aberration curve figure of first embodiment of the invention.

Fig. 2A is the image-taking device schematic diagram of second embodiment of the invention.

Fig. 2 B are the aberration curve figures of second embodiment of the invention.

Fig. 3 A are the image-taking device schematic diagrames of third embodiment of the invention.

Fig. 3 B are the aberration curve figures of third embodiment of the invention.

Fig. 4 A are the image-taking device schematic diagrames of fourth embodiment of the invention.

Fig. 4 B are the aberration curve figures of fourth embodiment of the invention.

Fig. 5 A are the image-taking device schematic diagrames of fifth embodiment of the invention.

Fig. 5 B are the aberration curve figures of fifth embodiment of the invention.

Fig. 6 A are the image-taking device schematic diagrames of sixth embodiment of the invention.

Fig. 6 B are the aberration curve figures of sixth embodiment of the invention.

Fig. 7 A are the image-taking device schematic diagrames of seventh embodiment of the invention.

Fig. 7 B are the aberration curve figures of seventh embodiment of the invention.

Fig. 8 A are the image-taking device schematic diagrames of eighth embodiment of the invention.

Fig. 8 B are the aberration curve figures of eighth embodiment of the invention.

Fig. 9 A are the image-taking device schematic diagrames of ninth embodiment of the invention.

Fig. 9 B are the aberration curve figures of ninth embodiment of the invention.

Figure 10 A are the image-taking device schematic diagrames of tenth embodiment of the invention.

Figure 10 B are the aberration curve figures of tenth embodiment of the invention.

Figure 11 A are the smart mobile phones for the image-taking device that signal is installed with the present invention.

Figure 11 B are the tablet computers for the image-taking device that signal is installed with the present invention.

Figure 11 C are the wearable devices for the image-taking device that signal is installed with the present invention.

Figure 12 is the schematic diagram of critical point of the present invention.Symbol description：

Aperture 100,200,300,400,500,600,700,800,900,1000

Optical axis 101

First lens 110,210,310,410,510,610,710,810,910,1010

Object side 111,211,311,411,511,611,711,811,911,1011

Image side surface 112,212,312,412,512,612,712,812,912,1012

Second lens 120,220,320,420,520,620,720,820,920,1020

Object side 121,221,321,421,521,621,721,821,921,1021

Image side surface 122,222,322,422,522,622,722,822,922,1022

The third lens 130,230,330,430,530,630,730,830,930,1030

Object side 131,231,331,431,531,631,731,831,931,1031

Image side surface 132,232,332,432,532,632,732,832,932,1032

4th lens 140,240,340,440,540,640,740,840,940,1040

Object side 141,241,341,441,541,641,741,841,941,1041

Image side surface 142,242,342,442,542,642,742,842,942,1042

5th lens 150,250,350,450,550,650,750,850,950,1050

Object side 151,251,351,451,551,651,751,851,951,1051

Image side surface 152,252,352,452,552,652,752,852,952,1052

Critical point 153

Infrared ray filters out filter element 160,260,360,460,560,660,760,860,960,1060

Imaging surface 170,270,370,470,570,670,770,870,970,1070

Electronics photosensitive element 180,280,380,480,580,680,780,880,980,1080

Image-taking device 1101

Smart mobile phone 1110

Tablet computer 1120

Wearable device 1130

The focal length of phtographic lens group is f

The f-number of phtographic lens group is Fno

The half at maximum visual angle is HFOV in phtographic lens group

Second lens between the third lens at a distance from optical axis be T23

The third lens between the 4th lens at a distance from optical axis be T34

Second lens are CT2 in the thickness on optical axis

The third lens are CT3 in the thickness on optical axis

4th lens are CT4 in the thickness on optical axis

5th lens are CT5 in the thickness on optical axis

The focal length of phtographic lens group is f

The focal length of first lens is f1

The focal length of second lens is f2

The focal length of 4th lens is f4

The focal length of 5th lens is f5

Aperture to the 5th lens image side surface in the distance on optical axis be SD

First lens object side to the 5th lens image side surface is TD in the distance on optical axis

The abbe number of first lens is V1

The abbe number of second lens is V2

The abbe number of 4th lens is V4

The maximum image height of phtographic lens group is ImgH

The radius of curvature of 4th lens object side is R7

The radius of curvature of 4th lens image side surface is R8

The vertical range of 5th lens image side surface critical point and optical axis is Yc52

The maximum effective radius of first lens object side is SD11

Entrance pupil aperture is EPD

Specific implementation mode

The present invention provides a kind of phtographic lens group, includes sequentially the first lens with refracting power, the by object side to image side Two lens, the third lens, the 4th lens and the 5th lens.Phtographic lens group is separately provided with an aperture, and the aperture with this first Nothing has the lens of refracting power between lens, and it is five to have the lens of refracting power in phtographic lens group.

First lens have positive refracting power, it is possible to provide the positive refracting power needed for system helps to promote light beam convergence energy Power, with effective control system overall length.The first lens object side is convex surface at dipped beam axis, can adjust positive refracting power configuration, into And reinforce shortening optics total length.

Second lens have negative refracting power, are conducive to make corrections to aberration caused by first lens, and mend simultaneously Positive aberration.The second lens object side can be convex surface at dipped beam axis, which can be concave surface at dipped beam axis, It can help to astigmatism amendment.First lens can more be conducive to positive refracting power and configuration of second lens with negative refracting power Formation is looked in the distance (Telephoto) structure, and subrange is made to have higher resolution ratio.

The third lens can have positive refracting power, contribute to the configuration of balance system refracting power, to reduce system sensitivity. An at least surface can be equipped with an at least point of inflexion in the third lens object side and image side surface, contribute to modified off-axis aberration, and The light that off-axis visual field can be suppressed is incident in angle on electronics photosensitive element, to increase electronics photosensitive element receiving efficiency.It should The third lens object flank radius and the radius of curvature of the third lens image side surface are positive and negative jack per line, help to reinforce astigmatism Capability for correcting.

It can be concave surface at dipped beam axis that 4th lens, which can have negative refracting power, the 4th lens object side, and the 4th thoroughly Mirror image side can be convex surface at dipped beam axis, contribute to the amendment for reinforcing astigmatism to promote image quality.

5th lens can have negative refracting power, contribute to the back focal length for shortening phtographic lens group, maintain its miniaturization.It should 5th lens object side can be convex surface at dipped beam axis, and the 5th lens image side surface can be concave surface at dipped beam axis, contribute to more Further strengthen amendment aberration.An at least surface is equipped with an at least point of inflexion in 5th lens object side and image side surface, can have Help reinforce the aberration of off-axis visual field.

Second lens at a distance from optical axis are T23, the third lens and the 4th lens between the third lens Between in the distance on optical axis be T34, the third lens in the thickness on optical axis be CT3, the 4th lens are in the thickness on optical axis Degree is CT4, and the 5th lens are CT5 in the thickness on optical axis.When the phtographic lens group meets following relationship：0.90<(T23+ When T34)/(CT3+CT4+CT5), light beam can be made by the lens spacing in mixing system stage casing and the lens thickness at nearly image side end Possess sufficient space correction because of aberration caused by overall space compression；Preferably, meeting following relationship：1.0<(T23+ T34)/(CT3+CT4+CT5)；More preferably, meet following relationship：1.15<(T23+T34)/(CT3+CT4+CT5).

The focal length of the phtographic lens group is f, and the focal lengths of first lens is f1, and the focal length of second lens is f2, this The focal length of four lens is f4, and the focal length of the 5th lens is f5.When the phtographic lens group meets following relationship：(|f/f4|+| f/f5|)/(|f/f1|+|f/f2|)<When 1.0, the system control ability of near the object end can be strengthened, and promote image side end lens in height The correction effect of rank aberration；Preferably, meeting following relationship：(|f/f4|+|f/f5|)/(|f/f1|+|f/f2|)<0.60.

The aperture is SD in the distance on optical axis to the 5th lens image side surface, and the first lens object side to the 5th is thoroughly Mirror image side is TD in the distance on optical axis.When the phtographic lens group meets following relationship：0.7<SD/TD<It, can be in when 1.1 Control into angular at the same also can balance system overall length, avoid system bulk excessive.

Second lens are CT2 in the thickness on optical axis, and the 4th lens are CT4 in the thickness on optical axis.When the photography Lens group meets following relationship：1.0<(CT2+CT4)/(CT2-CT4) when, the effect light path of second lens can be strengthened, and The refracting power configuration for mitigating the 4th lens, with correcting system marginal aberration, and then reaches preferable vista shot quality；Preferably Ground meets following relationship：2.0<(CT2+CT4)/(CT2-CT4)<50.

The third lens are CT3 in the thickness on optical axis, and the 4th lens are that CT4 works as the photographic mirror in the thickness on optical axis Head group meets following relationship：0.3<CT4/CT3<When 2.5, lens thickness can be effectively controlled, to promote product manufacturing, and is dropped Low sensitivity.

The focal length of first lens is f1, and the focal length of the 4th lens is f4, when the phtographic lens group meets following relationship Formula：-1.0<f1/f4<When 0, so that first lens and the refracting power configuration of the 4th lens is more balanced, advantageously reduce system Susceptibility and aberration generation；Preferably, meeting following relationship：-0.5<f1/f4<0.

The abbe number of first lens is V1, and the abbe number of second lens is V2, the dispersion system of the 4th lens Number is V4.When the phtographic lens group meets following relationship：0.5<(V2+V4)/V1<When 1.0, can effectively update the system aberration with Promote image quality.

The focal length of the phtographic lens group is f, and the maximum image height of the phtographic lens group is that (i.e. electronics photosensitive element is effective by ImgH The half of sensing region diagonal line length).When the phtographic lens group meets following relationship：1.9<f/ImgH<When 5.0, it can help In the miniaturization of system, and obtain good image quality.

The radius of curvature of 4th lens object side is R7, and the radius of curvature of the 4th lens image side surface is R8.When this is taken the photograph Shadow lens group meets following relationship：-35<(R7+R8)/(R7-R8)<When -1.0, contribute to the generation for reducing astigmatism to maintain Good image quality.

The maximum image height of the phtographic lens group is ImgH, and second lens are between the third lens at a distance from optical axis For T23, which at a distance from optical axis is T34 between the 4th lens, when the phtographic lens group meets following pass It is formula：1.0<ImgH/(T23+T34)<When 2.2, the distance between lens are more suitable, and contribute to the small-sized of maintenance system Change.

The focal length of the phtographic lens group is f, and the focal length of first lens is f1, and the focal length of second lens is f2, when this Phtographic lens group meets following relationship：2.5<| f/f1 |+| f/f2 | when, it can be conducive to form structure of looking in the distance, subrange is made to have Standby higher resolution ratio.

The focal length of the phtographic lens group is f, and the vertical range of the 5th lens image side surface critical point and optical axis is Yc52, when The phtographic lens group meets following relationship：3.0<f/Yc52<When 20, it is off-axis to be promoted to be conducive to the aberration of modified off-axis visual field The image quality at place.

The half at maximum visual angle is HFOV in the phtographic lens group.When the phtographic lens group meets following relationship：10.0 [deg.]<HFOV<When 30.0 [deg.], it can provide phtographic lens group imaging range appropriate under telescopic system structure.

The maximum effective radius of the first lens object side is SD11, and the entrance pupil aperture of the phtographic lens group is EPD.When this Phtographic lens group meets following relationship：0.95<EPD/(SD11*2)<When 1.1, structure of looking in the distance can be advantageously formed, and provide Sufficient incident light quantity, and then improve the response speed of photosensitive element.

The maximum image height of the phtographic lens group is ImgH, and the entrance pupil aperture of the phtographic lens group is EPD.When the phtographic lens Group meets following relationship：0.85<EPD/ImgH<When 2.0, it is possible to provide sufficient incident light quantity, and be conducive to maintain the photographic mirror The miniaturization of head group, to be equipped on frivolous portable electronic product.

The invention discloses phtographic lens group in, the materials of lens can be glass or plastic cement, if the material of lens is glass, The degree of freedom of phtographic lens group refracting power configuration can then be increased, if lens material is plastic cement, can effectively reduce production Cost.In addition, can be aspherical to be easy to be fabricated to the shape other than spherical surface in being arranged on minute surface aspherical (ASP), obtain compared with More controlled variables to cut down aberration, and then reduces the number that lens use, therefore can effectively reduce photographic mirror of the present invention The total length of head group.

The invention discloses phtographic lens group in, a diaphragm can be at least set, as aperture diaphragm (Aperture Stop), Credit light diaphragm (Glare Stop) or field stop (Field Stop) etc..

The invention discloses phtographic lens group in, aperture configuration can be it is preposition or in set, preposition aperture imply that aperture be arranged Between object and first lens, in set aperture and then indicate that aperture is set between first lens and imaging surface, preposition aperture The outgoing pupil (Exit Pupil) and imaging surface that can make phtographic lens group generate longer distance, with telecentricity (Telecentric) effect can increase the efficiency that electronics photosensitive element such as CCD or CMOS receive image；In set aperture and then help In the field angle for expanding system, make phtographic lens group that there is the advantage of wide-angle lens.

The invention discloses phtographic lens group in, if lens surface is convex surface and when not defining the convex surface position, then it represents that The lens surface is convex surface at dipped beam axis；If lens surface is concave surface and does not define the concave surface position, then it represents that the lens Surface is concave surface at dipped beam axis.If the refracting power or focal length of lens do not define its regional location, then it represents that the lens are bent It is refracting power or focal length of the lens at dipped beam axis to roll over power or focal length.

The invention discloses phtographic lens group in, the imaging surface (Image Surface) of the phtographic lens group, according to its correspondence Electronics photosensitive element difference, can be a flat surface or have the curved surface of any curvature, particularly relate to concave surface towards toward object side direction Curved surface.

Critical point (Critical Point) is the point of contact on the section of optical axis and the tangent tangent line of lens surface, It is worth noting that, critical point be with the immediate pole of optical axis, and critical point is not on optical axis.Figure 12 is please referred to, is It is painted the critical point schematic diagram according to the 5th lens image side surface in Figure 1A phtographic lens groups.5th lens, 150 image side surface 152 The vertical range of critical point 153 and optical axis 101 is Yc52.

The invention discloses the also visual demand of phtographic lens group be applied in the optical system of mobile focusing, and have both excellent The characteristic of lens error correction and good image quality.The present invention many-sided can also be applied to 3D (three-dimensional) capturing images, digital camera, Mobile device, digital flat, smart television, network monitoring device, somatic sensation television game machine, drive recorder, reversing developing apparatus with In the electronic devices such as wearable device.

The present invention more provides a kind of image-taking device, and it includes aforementioned phtographic lens group and an electronics photosensitive element, the electricity Sub- photosensitive element is set to the imaging surface of the phtographic lens group, therefore image-taking device can reach most by the design of phtographic lens group Good imaging effect.Preferably, the image-taking device can further include lens barrel (Barrel Member), support device (Holder Member) or combinations thereof.

Figure 11 A, Figure 11 B, Figure 11 C are please referred to, which can be equipped on electronic device comprising, but it is unlimited In：Smart mobile phone 1110, tablet computer 1120 or wearable device 1130.Preceding exposure electronic device is only exemplarily to say The practice example of the image-taking device of the bright present invention not limits the operation strategies of the image-taking device of the present invention.Preferably, should Electronic device can further include control unit (Control Units), display unit (Display Units), storage unit (Storage Units), temporary storage unit (RAM) or combinations thereof.

The invention discloses image-taking device and phtographic lens group will be by having body embodiment cooperation institute accompanying drawings to give below To be described in detail.

《First embodiment》

First embodiment of the invention please refers to Fig.1 A, and the aberration curve of first embodiment please refers to Fig.1 B.First embodiment Image-taking device include a phtographic lens group (not another label) and an electronics photosensitive element 180, the phtographic lens group is mainly by five Piece has the first lens 110, the second lens 120, the third lens 130, the 4th lens 140 and the 5th lens 150 of refracting power It constitutes, includes sequentially by object side to image side：

One the first lens 110 with positive refracting power, material are plastic cement, and object side 111 is convex surface at dipped beam axis, Its image side surface 112 is convex surface at dipped beam axis, and its object side 111 and image side surface 112 are all aspherical；

One the second lens 120 with negative refracting power, material are plastic cement, and object side 121 is concave surface at dipped beam axis, Its image side surface 122 is concave surface at dipped beam axis, and its object side 121 and image side surface 122 are all aspherical；

One the third lens 130 with positive refracting power, material are plastic cement, and object side 131 is convex surface at dipped beam axis, Its image side surface 132 at dipped beam axis be concave surface, object side 131 and image side surface 132 are all aspherical, and its object side 131 and Image side surface 132 all has an at least point of inflexion；

One the 4th lens 140 with negative refracting power, material are plastic cement, and object side 141 is concave surface at dipped beam axis, Its image side surface 142 is convex surface at dipped beam axis, and its object side 141 and image side surface 142 are all aspherical；And

One the 5th lens 150 with negative refracting power, material are plastic cement, and object side 151 is convex surface at dipped beam axis, Its image side surface 152 at dipped beam axis be concave surface, object side 151 and image side surface 152 are all aspherical, and its object side 151 and Image side surface 152 all has an at least point of inflexion；

The phtographic lens group is separately provided with an aperture 100, is set between object and first lens 110, and the light Without the lens with refracting power between circle 100 and first lens 110；It has additionally comprised an infrared ray and filters out filter element 160 and set Between the 5th lens 150 and an imaging surface 170, material is glass and does not influence focal length；The electronics photosensitive element 180 is arranged In on the imaging surface 170.

The detailed optical data of first embodiment is as shown in Table 1, and aspherical surface data is as shown in Table 2, radius of curvature, thickness The unit of degree and focal length is millimeter, and HFOV is defined as the half at maximum visual angle.

The equation of above-mentioned aspheric curve indicates as follows：

Wherein：

X：Apart from the point that optical axis is Y on aspherical, with the relative distance for being tangential on the section on vertex on aspherical optical axis；

Y：The vertical range of point and optical axis in aspheric curve；

R：Radius of curvature；

k：Conical surface coefficient；

Ai：I-th rank asphericity coefficient.

In first embodiment, the focal length of the phtographic lens group is f, and the f-number of the phtographic lens group is Fno, the photographic mirror The half at maximum visual angle is HFOV in head group, and numerical value is：F=5.27 (millimeter), Fno=2.40, HFOV=22.7 (degree).

In first embodiment, the abbe number of first lens 110 is V1, and the abbe number of second lens 120 is V2, The abbe number of 4th lens 140 is V4, and relational expression is：(V2+V4)/V1=0.84.

In first embodiment, which at a distance from optical axis is T23 between the third lens 130, this Three lens 130 between the 4th lens 140 at a distance from optical axis be T34, the third lens (130) are in the thickness on optical axis For CT3, the 4th lens 140 are CT4 in the thickness on optical axis, and the 5th lens 150 are CT5 in the thickness on optical axis, are closed It is that formula is：(T23+T34)/(CT3+CT4+CT5)=1.32.

In first embodiment, which is CT2 in the thickness on optical axis, and the 4th lens 140 are on optical axis Thickness is CT4, and relational expression is：(CT2+CT4)/(CT2-CT4)=3.17.

In first embodiment, the 4th lens 140 are CT4 in the thickness on optical axis, and the third lens 130 are on optical axis Thickness is CT3, and relational expression is：CT4/CT3=1.06.

In first embodiment, the radius of curvature of 140 object side of the 4th lens is R7,140 image side surface of the 4th lens Radius of curvature is R8, and relational expression is：(R7+R8)/(R7-R8)=- 7.26.

In first embodiment, the focal length of the phtographic lens group is f, and the focal length of first lens 110 is f1, second lens 120 focal length is f2, and relational expression is：| f/f1 |+| f/f2 |=4.40.

In first embodiment, the focal length of first lens 110 is f1, and the focal length of the 4th lens 140 is f4, relational expression For：F1/f4=-0.12.

In first embodiment, the focal length of the phtographic lens group is f, and the focal length of first lens 110 is f1, second lens 120 focal length is f2, and the focal length of the 4th lens 140 is f4, and the focal length of the 5th lens 150 is f5, and relational expression is：(|f/ F4 |+| f/f5 |)/(| f/f1 |+| f/f2 |)=0.13.

In first embodiment, which at a distance from optical axis is T23 between the third lens 130, this Three lens 130 at a distance from optical axis are T34 between the 4th lens 140, and the maximum image height of the phtographic lens group is ImgH (i.e. the half of electronics photosensitive element effective feeling survey region diagonal line length), relational expression is：ImgH/ (T23+T34)=1.81.

In first embodiment, the focal length of the phtographic lens group is f, and the maximum image height of the phtographic lens group is ImgH, is closed It is that formula is：F/ImgH=2.29.

In first embodiment, the entrance pupil aperture of the phtographic lens group is EPD, and the maximum image height of the phtographic lens group is ImgH, relational expression are：EPD/ImgH=0.95.

In first embodiment, the aperture 100 to 150 image side surface of the 5th lens is SD in the distance on optical axis, this first 110 object side of lens is TD in the distance on optical axis to 150 image side surface of the 5th lens, and relational expression is：SD/TD=0.90.

In first embodiment, the focal length of the phtographic lens group is f, the 150 image side surface critical point of the 5th lens and optical axis Vertical range is Yc52, and relational expression is：F/Yc52=6.71.

In first embodiment, the entrance pupil aperture of the phtographic lens group is EPD, and the maximum of the 110 object side of the first lens has Effect radius is SD11, and relational expression is：EPD/ (SD11*2)=0.99.

《Second embodiment》

Second embodiment of the invention please refers to Fig. 2A, and the aberration curve of second embodiment please refers to Fig. 2 B.Second embodiment Image-taking device include a phtographic lens group (not another label) and an electronics photosensitive element 280, the phtographic lens group is mainly by five Piece has the first lens 210, the second lens 220, the third lens 230, the 4th lens 240 and the 5th lens 250 of refracting power It constitutes, includes sequentially by object side to image side：

One the first lens 210 with positive refracting power, material are plastic cement, and object side 211 is convex surface at dipped beam axis, Its image side surface 212 is concave surface at dipped beam axis, and its object side 211 and image side surface 212 are all aspherical；

One the second lens 220 with negative refracting power, material are plastic cement, and object side 221 is convex surface at dipped beam axis, Its image side surface 222 is concave surface at dipped beam axis, and its object side 221 and image side surface 222 are all aspherical；

One the third lens 230 with positive refracting power, material are plastic cement, and object side 231 is convex surface at dipped beam axis, Its image side surface 232 at dipped beam axis be concave surface, object side 231 and image side surface 232 are all aspherical, and its object side 231 and Image side surface 232 all has an at least point of inflexion；

One the 4th lens 240 with negative refracting power, material are plastic cement, and object side 241 is concave surface at dipped beam axis, Its image side surface 242 is convex surface at dipped beam axis, and its object side 241 and image side surface 242 are all aspherical；And

One the 5th lens 250 with negative refracting power, material are plastic cement, and object side 251 is convex surface at dipped beam axis, Its image side surface 252 at dipped beam axis be concave surface, object side 251 and image side surface 252 are all aspherical, and its object side 251 and All there is an at least point of inflexion in image side surface 252；

The phtographic lens group is separately provided with an aperture 200, is placed between an object and first lens 210, and the light Without the lens with refracting power between circle 200 and first lens 210；It has additionally comprised an infrared ray and filters out filter element 260 and set Between the 5th lens 250 and an imaging surface 270, material is glass and does not influence focal length；The electronics photosensitive element 280 is arranged In on the imaging surface 270.

The detailed optical data of second embodiment is as shown in Table 3, and aspherical surface data is as shown in Table 4, radius of curvature, thickness The unit of degree and focal length is millimeter, and HFOV is defined as the half at maximum visual angle.

Form of the expression of second embodiment aspheric curve equation such as first embodiment.In addition, each relational expression Parameter illustrated such as first embodiment, but it is listed in the numerical value of each relational expression such as table five.

《3rd embodiment》

Third embodiment of the invention please refers to Fig. 3 A, and the aberration curve of 3rd embodiment please refers to Fig. 3 B.3rd embodiment Image-taking device include a phtographic lens group (not another label) and an electronics photosensitive element 380, the phtographic lens group is mainly by five Piece has the first lens 310, the second lens 320, the third lens 330, the 4th lens 340 and the 5th lens 350 of refracting power It constitutes, includes sequentially by object side to image side：

One the first lens 310 with positive refracting power, material are plastic cement, and object side 311 is convex surface at dipped beam axis, Its image side surface 312 is concave surface at dipped beam axis, and its object side 311 and image side surface 312 are all aspherical；

One the second lens 320 with negative refracting power, material are plastic cement, and object side 321 is convex surface at dipped beam axis, Its image side surface 322 is concave surface at dipped beam axis, and its object side 321 and image side surface 322 are all aspherical；

One the third lens 330 with positive refracting power, material are plastic cement, and object side 331 is convex surface at dipped beam axis, Its image side surface 332 is concave surface at dipped beam axis, and object side 331 and image side surface 332 are all aspherical, and its object side 331 has There is an at least point of inflexion；

One the 4th lens 340 with negative refracting power, material are plastic cement, and object side 341 is concave surface at dipped beam axis, Its image side surface 342 is convex surface at dipped beam axis, and its object side 341 and image side surface 342 are all aspherical；And

One the 5th lens 350 with negative refracting power, material are plastic cement, and object side 351 is convex surface at dipped beam axis, Its image side surface 352 at dipped beam axis be concave surface, object side 351 and image side surface 352 are all aspherical, and its object side 351 and All there is an at least point of inflexion in image side surface 352；

The phtographic lens group is separately provided with an aperture 300, is placed between an object and first lens 310, and the light Without the lens with refracting power between circle 300 and first lens 310；It has additionally comprised an infrared ray and filters out filter element 360 and set Between the 5th lens 350 and an imaging surface 370, material is glass and does not influence focal length；The electronics photosensitive element 380 is arranged In on the imaging surface 370.

The detailed optical data of 3rd embodiment is as shown in Table 6, and aspherical surface data is as shown in Table 7, radius of curvature, thickness The unit of degree and focal length is millimeter, and HFOV is defined as the half at maximum visual angle.

Form of the expression of 3rd embodiment aspheric curve equation such as first embodiment.In addition, each relational expression Parameter illustrated such as first embodiment, but it is listed in the numerical value of each relational expression such as table eight.

《Fourth embodiment》

Fourth embodiment of the invention please refers to Fig. 4 A, and the aberration curve of fourth embodiment please refers to Fig. 4 B.Fourth embodiment Image-taking device include a phtographic lens group (not another label) and an electronics photosensitive element 480, the phtographic lens group is mainly by five Piece has the first lens 410, the second lens 420, the third lens 430, the 4th lens 440 and the 5th lens 450 of refracting power It constitutes, includes sequentially by object side to image side：

One the first lens 410 with positive refracting power, material are plastic cement, and object side 411 is convex surface at dipped beam axis, Its image side surface 412 is concave surface at dipped beam axis, and its object side 411 and image side surface 412 are all aspherical；

One the second lens 420 with negative refracting power, material are plastic cement, and object side 421 is convex surface at dipped beam axis, Its image side surface 422 is concave surface at dipped beam axis, and its object side 421 and image side surface 422 are all aspherical；

One the third lens 430 with positive refracting power, material are plastic cement, and object side 431 is convex surface at dipped beam axis, Its image side surface 432 is concave surface at dipped beam axis, and object side 431 and image side surface 432 are all aspherical, and its object side 431 has There is an at least point of inflexion；

One the 4th lens 440 with negative refracting power, material are plastic cement, and object side 441 is concave surface at dipped beam axis, Its image side surface 442 is convex surface at dipped beam axis, and its object side 441 and image side surface 442 are all aspherical；And

One the 5th lens 450 with positive refracting power, material are plastic cement, and object side 451 is convex surface at dipped beam axis, Its image side surface 452 at dipped beam axis be concave surface, object side 451 and image side surface 452 are all aspherical, and its object side 451 and All there is an at least point of inflexion in image side surface 452；

The phtographic lens group is separately provided with an aperture 400, is placed between an object and first lens 410, and the light Without the lens with refracting power between circle 400 and first lens 410；It has additionally comprised an infrared ray and filters out filter element 460 and set Between the 5th lens 450 and an imaging surface 470, material is glass and does not influence focal length；The electronics photosensitive element 480 is arranged In on the imaging surface 470.

The detailed optical data of fourth embodiment is as shown in Table 9, and aspherical surface data is as shown in Table 10, radius of curvature, thickness The unit of degree and focal length is millimeter, and HFOV is defined as the half at maximum visual angle.

Form of the expression of fourth embodiment aspheric curve equation such as first embodiment.In addition, each relational expression Parameter illustrated such as first embodiment, but it is listed in the numerical value of each relational expression such as table 11.

《5th embodiment》

Fifth embodiment of the invention please refers to Fig. 5 A, and the aberration curve of the 5th embodiment please refers to Fig. 5 B.5th embodiment Image-taking device include a phtographic lens group (not another label) and an electronics photosensitive element 580, the phtographic lens group is mainly by five Piece has the first lens 510, the second lens 520, the third lens 530, the 4th lens 540 and the 5th lens 550 of refracting power It constitutes, includes sequentially by object side to image side：

One the first lens 510 with positive refracting power, material are plastic cement, and object side 511 is convex surface at dipped beam axis, Its image side surface 512 is convex surface at dipped beam axis, and its object side 511 and image side surface 512 are all aspherical；

One the second lens 520 with negative refracting power, material are plastic cement, and object side 521 is convex surface at dipped beam axis, Its image side surface 522 is concave surface at dipped beam axis, and its object side 521 and image side surface 522 are all aspherical；

One the third lens 530 with negative refracting power, material are plastic cement, and object side 531 is convex surface at dipped beam axis, Its image side surface 532 at dipped beam axis be concave surface, object side 531 and image side surface 532 are all aspherical, and its object side 531 and All there is an at least point of inflexion in image side surface 532；

One the 4th lens 540 with negative refracting power, material are plastic cement, and object side 541 is concave surface at dipped beam axis, Its image side surface 542 is convex surface at dipped beam axis, and its object side 541 and image side surface 542 are all aspherical；And

One the 5th lens 550 with positive refracting power, material are plastic cement, and object side 551 is convex surface at dipped beam axis, Its image side surface 552 at dipped beam axis be concave surface, object side 551 and image side surface 552 are all aspherical, and its object side 551 and All there is an at least point of inflexion in image side surface 552；

The phtographic lens group is separately provided with an aperture 500, is placed between first lens 510 and second lens 520, and Without the lens with refracting power between the aperture 500 and first lens 510；It has additionally comprised an infrared ray and has filtered out filter element 560 are placed between the 5th lens 550 and an imaging surface 570, and material is glass and does not influence focal length；The electronics photosensitive element 580 are set on the imaging surface 570.

The 5th detailed optical data of embodiment is as shown in table 12, and aspherical surface data is as shown in table 13, curvature half The unit of diameter, thickness and focal length is millimeter, and HFOV is defined as the half at maximum visual angle.

Form of the expression of 5th embodiment aspheric curve equation such as first embodiment.In addition, each relational expression Parameter illustrated such as first embodiment, but it is listed in the numerical value of each relational expression such as table 14.

《Sixth embodiment》

Sixth embodiment of the invention please refers to Fig. 6 A, and the aberration curve of sixth embodiment please refers to Fig. 6 B.Sixth embodiment Image-taking device include a phtographic lens group (not another label) and an electronics photosensitive element 680, the phtographic lens group is mainly by five Piece has the first lens 610, the second lens 620, the third lens 630, the 4th lens 640 and the 5th lens 650 of refracting power It constitutes, includes sequentially by object side to image side：

One the first lens 610 with positive refracting power, material are plastic cement, and object side 611 is convex surface at dipped beam axis, Its image side surface 612 is convex surface at dipped beam axis, and its object side 611 and image side surface 612 are all aspherical；

One the second lens 620 with negative refracting power, material are plastic cement, and object side 621 is convex surface at dipped beam axis, Its image side surface 622 is concave surface at dipped beam axis, and its object side 621 and image side surface 622 are all aspherical；

One the third lens 630 with positive refracting power, material are plastic cement, and object side 631 is convex surface at dipped beam axis, Its image side surface 632 is concave surface at dipped beam axis, and object side 631 and image side surface 632 are all aspherical, and its object side 631 has There is an at least point of inflexion；

One the 4th lens 640 with negative refracting power, material are plastic cement, and object side 641 is concave surface at dipped beam axis, Its image side surface 642 is convex surface at dipped beam axis, and its object side 641 and image side surface 642 are all aspherical；And

One the 5th lens 650 with negative refracting power, material are plastic cement, and object side 651 is convex surface at dipped beam axis, Its image side surface 652 at dipped beam axis be concave surface, object side 651 and image side surface 652 are all aspherical, and its object side 651 and All there is an at least point of inflexion in image side surface 652；

The phtographic lens group is separately provided with an aperture 600, is placed between first lens 610 and second lens 620, and Without the lens with refracting power between the aperture 600 and first lens 610；It has additionally comprised an infrared ray and has filtered out filter element 660 are placed between the 5th lens 650 and an imaging surface 670, and material is glass and does not influence focal length；The electronics photosensitive element 680 are set on the imaging surface 670.

The detailed optical data of sixth embodiment is as shown in table 15, and aspherical surface data is as shown in table 16, curvature half The unit of diameter, thickness and focal length is millimeter, and HFOV is defined as the half at maximum visual angle.

Form of the expression of sixth embodiment aspheric curve equation such as first embodiment.In addition, each relational expression Parameter illustrated such as first embodiment, but it is listed in the numerical value of each relational expression such as table 17.

《7th embodiment》

Seventh embodiment of the invention please refers to Fig. 7 A, and the aberration curve of the 7th embodiment please refers to Fig. 7 B.7th embodiment Image-taking device include a phtographic lens group (not another label) and an electronics photosensitive element 780, the phtographic lens group is mainly by five Piece has the first lens 710, the second lens 720, the third lens 730, the 4th lens 740 and the 5th lens 750 of refracting power It constitutes, includes sequentially by object side to image side：

One the first lens 710 with positive refracting power, material are glass, and object side 711 is convex surface at dipped beam axis, Its image side surface 712 is convex surface at dipped beam axis, and its object side 711 and image side surface 712 are all aspherical；

One the second lens 720 with negative refracting power, material are plastic cement, and object side 721 is convex surface at dipped beam axis, Its image side surface 722 is concave surface at dipped beam axis, and its object side 721 and image side surface 722 are all aspherical；

One the third lens 730 with positive refracting power, material are plastic cement, and object side 731 is convex surface at dipped beam axis, Its image side surface 732 is concave surface at dipped beam axis, and object side 731 and image side surface 732 are all aspherical, and its object side 731 has There is an at least point of inflexion；

One the 4th lens 740 with negative refracting power, material are plastic cement, and object side 741 is concave surface at dipped beam axis, Its image side surface 742 is convex surface at dipped beam axis, and its object side 741 and image side surface 742 are all aspherical；And

One the 5th lens 750 with positive refracting power, material are plastic cement, and object side 751 is convex surface at dipped beam axis, Its image side surface 752 at dipped beam axis be concave surface, object side 751 and image side surface 752 are all aspherical, and its object side 751 and All there is an at least point of inflexion in image side surface 752；

The phtographic lens group is separately provided with an aperture 700, is placed between an object and first lens 710, and the light Without the lens with refracting power between circle 700 and first lens 710；It has additionally comprised an infrared ray and filters out filter element 760 and set Between the 5th lens 750 and an imaging surface 770, material is glass and does not influence focal length；The electronics photosensitive element 780 is arranged In on the imaging surface 770.

The 7th detailed optical data of embodiment is as shown in table 18, and aspherical surface data is as shown in table 19, curvature half The unit of diameter, thickness and focal length is millimeter, and HFOV is defined as the half at maximum visual angle.

Form of the expression of 7th embodiment aspheric curve equation such as first embodiment.In addition, each relational expression Parameter illustrated such as first embodiment, but it is listed in the numerical value of each relational expression such as table 20.

《8th embodiment》

Eighth embodiment of the invention please refers to Fig. 8 A, and the aberration curve of the 8th embodiment please refers to Fig. 8 B.8th embodiment Image-taking device include a phtographic lens group (not another label) and an electronics photosensitive element 880, the phtographic lens group is mainly by five Piece has the first lens 810, the second lens 820, the third lens 830, the 4th lens 840 and the 5th lens 850 of refracting power It constitutes, includes sequentially by object side to image side：

One the first lens 810 with positive refracting power, material are plastic cement, and object side 811 is convex surface at dipped beam axis, Its image side surface 812 is convex surface at dipped beam axis, and its object side 811 and image side surface 812 are all aspherical；

One the second lens 820 with negative refracting power, material are plastic cement, and object side 821 is convex surface at dipped beam axis, Its image side surface 822 is concave surface at dipped beam axis, and its object side 821 and image side surface 822 are all aspherical；

One the third lens 830 with positive refracting power, material are plastic cement, and object side 831 is concave surface at dipped beam axis, Its image side surface 832 is convex surface at dipped beam axis, and its object side 831 and image side surface 832 are all aspherical, and its object side 831 And all there is an at least point of inflexion in image side surface 832；

One the 4th lens 840 with negative refracting power, material are plastic cement, and object side 841 is concave surface at dipped beam axis, Its image side surface 842 is convex surface at dipped beam axis, and its object side 841 and image side surface 842 are all aspherical；And

One the 5th lens 850 with positive refracting power, material are plastic cement, and object side 851 is convex surface at dipped beam axis, Its image side surface 852 at dipped beam axis be concave surface, object side 851 and image side surface 852 are all aspherical, and its object side 851 and All there is an at least point of inflexion in image side surface 852；

The phtographic lens group is separately provided with an aperture 800, is placed between an object and first lens 810, and the light Without the lens with refracting power between circle 800 and first lens 810；It has additionally comprised an infrared ray and filters out filter element 860 and set Between the 5th lens 850 and an imaging surface 870, material is glass and does not influence focal length；The electronics photosensitive element 880 is arranged In on the imaging surface 870.

For the 8th detailed optical data of embodiment as shown in table 21, aspherical surface data is bent as shown in table 22 The unit of rate radius, thickness and focal length is millimeter, and HFOV is defined as the half at maximum visual angle.

Form of the expression of 8th embodiment aspheric curve equation such as first embodiment.In addition, each relational expression Parameter illustrated such as first embodiment, but it is listed in the numerical value of each relational expression such as table 23.

《9th embodiment》

Ninth embodiment of the invention please refers to Fig. 9 A, and the aberration curve of the 9th embodiment please refers to Fig. 9 B.9th embodiment Image-taking device include a phtographic lens group (not another label) and an electronics photosensitive element 980, the phtographic lens group is mainly by five Piece has the first lens 910, the second lens 920, the third lens 930, the 4th lens 940 and the 5th lens 950 of refracting power It constitutes, includes sequentially by object side to image side：

One the first lens 910 with positive refracting power, material are plastic cement, and object side 911 is convex surface at dipped beam axis, Its image side surface 912 is concave surface at dipped beam axis, and its object side 911 and image side surface 912 are all aspherical；

One the second lens 920 with negative refracting power, material are plastic cement, and object side 921 is convex surface at dipped beam axis, Its image side surface 922 is concave surface at dipped beam axis, and its object side 921 and image side surface 922 are all aspherical；

One the third lens 930 with positive refracting power, material are plastic cement, and object side 931 is convex surface at dipped beam axis, Its image side surface 932 is convex surface at dipped beam axis, and object side 931 and image side surface 932 are all aspherical, and its object side 931 has There is an at least point of inflexion；

One the 4th lens 940 with negative refracting power, material are plastic cement, and object side 941 is concave surface at dipped beam axis, Its image side surface 942 is convex surface at dipped beam axis, and its object side 941 and image side surface 942 are all aspherical；And

One the 5th lens 950 with negative refracting power, material are plastic cement, and object side 951 is convex surface at dipped beam axis, Its image side surface 952 at dipped beam axis be concave surface, object side 951 and image side surface 952 are all aspherical, and its object side 951 and All there is an at least point of inflexion in image side surface 952；

The phtographic lens group is separately provided with an aperture 900, is placed between an object and first lens 910, and the light Without the lens with refracting power between circle 900 and first lens 910；It has additionally comprised an infrared ray and filters out filter element 960 and set Between the 5th lens 950 and an imaging surface 970, material is glass and does not influence focal length；The electronics photosensitive element 980 is arranged In on the imaging surface 970.

For the 9th detailed optical data of embodiment as shown in table 24, aspherical surface data is bent as shown in table 25 The unit of rate radius, thickness and focal length is millimeter, and HFOV is defined as the half at maximum visual angle.

Form of the expression of 9th embodiment aspheric curve equation such as first embodiment.In addition, each relational expression Parameter illustrated such as first embodiment, but it is listed in the numerical value of each relational expression such as table 26.

《Tenth embodiment》

Tenth embodiment of the invention please refers to Fig.1 0A, and the aberration curve of the tenth embodiment please refers to Fig.1 0B.Tenth implements The image-taking device of example includes a phtographic lens group (not another label) and an electronics photosensitive element 1080, the phtographic lens group mainly by Five the first lens 1010, the second lens 1020, the third lens 1030, the 4th lens 1040 and the 5th with refracting power are saturating Mirror 1050 is constituted, and includes sequentially by object side to image side：

One the first lens 1010 with positive refracting power, material are plastic cement, and object side 1011 is convex at dipped beam axis Face, image side surface 1012 is concave surface at dipped beam axis, and its object side 1011 and image side surface 1012 are all aspherical；

One the second lens 1020 with negative refracting power, material are plastic cement, and object side 1021 is convex at dipped beam axis Face, image side surface 1022 is concave surface at dipped beam axis, and its object side 1021 and image side surface 1022 are all aspherical；

One the third lens 1030 with positive refracting power, material are plastic cement, and object side 1031 is convex at dipped beam axis Face, image side surface 1032 is convex surface at dipped beam axis, and its object side 1031 and image side surface 1032 are all aspherical, and its object side Face 1031 and image side surface 1032 all have an at least point of inflexion；

One the 4th lens 1040 with positive refracting power, material are plastic cement, and object side 1041 is recessed at dipped beam axis Face, image side surface 1042 is convex surface at dipped beam axis, and its object side 1041 and image side surface 1042 are all aspherical；And

One the 5th lens 1050 with negative refracting power, material are plastic cement, and object side 1051 is convex at dipped beam axis Face, image side surface 1052 are concave surface at dipped beam axis, and object side 1051 and image side surface 1052 are all aspherical, and its object side 1051 and image side surface 1052 in all have an at least point of inflexion；

The phtographic lens group is separately provided with an aperture 1000, is placed between an object and first lens 1010, and should Without the lens with refracting power between aperture 1000 and first lens 1010；It has additionally comprised an infrared ray and has filtered out filter element 1060 are placed between the 5th lens 1050 and an imaging surface 1070, and material is glass and does not influence focal length；The photosensitive member of the electronics Part 1080 is set on the imaging surface 1070.

For the tenth detailed optical data of embodiment as shown in table 27, aspherical surface data is bent as shown in table 28 The unit of rate radius, thickness and focal length is millimeter, and HFOV is defined as the half at maximum visual angle.

Form of the expression of tenth embodiment aspheric curve equation such as first embodiment.In addition, each relational expression Parameter illustrated such as first embodiment, but it is listed in the numerical value of each relational expression such as table 29.

Table one to table 29 show the invention discloses phtographic lens group embodiment different numerical value change tables, so this Invent that the numerical value change of each embodiment is all true to test gained, even if using different numerical value, mutually isostructural product should belong to The invention discloses protection category, therefore above explanation is described and schema be only used as it is illustrative, it is non-limiting the present invention The right of exposure.

Claims (29)

1. a kind of phtographic lens group, which is characterized in that include sequentially by object side to image side：

One first lens, it is convex surface to have positive refracting power, object side；

One second lens have negative refracting power；

One the third lens；

One the 4th lens, object side and image side surface are all aspherical；And

One the 5th lens, object side are convex surface, and object side and image side surface are all aspherical, and in its object side and image side surface An at least surface is equipped with an at least point of inflexion；

Wherein, which is separately provided with an aperture, and without lens between the aperture and first lens；

Wherein, the lens in the phtographic lens group are five；

Second lens between the third lens at a distance from optical axis be T23, between the third lens and the 4th lens It is T34 in the distance on optical axis, which is CT2 in the thickness on optical axis, which is in the thickness on optical axis CT3, the 4th lens are CT4 in the thickness on optical axis, and the 5th lens are CT5, the phtographic lens group in the thickness on optical axis Focal length be f, the focal lengths of first lens is f1, and the focal length of second lens is f2, and the focal length of the 4th lens is f4, this The focal length of five lens is f5, and the aperture to the 5th lens image side surface is SD, the first lens object side in the distance on optical axis In the distance on optical axis it is TD to the 5th lens image side surface, the maximum image height of the phtographic lens group is ImgH, meets following pass It is formula：

0.90<(T23+T34)/(CT3+CT4+CT5)；

(|f/f4|+|f/f5|)/(|f/f1|+|f/f2|)<0.60；

0.7<SD/TD<1.1；1.0<(CT2+CT4)/(CT2-CT4)；And

1.9<f/ImgH<5.0。

2. phtographic lens group as described in claim 1, which is characterized in that the focal length of first lens is f1, the 4th lens Focal length be f4, meet following relationship：

-1.0<f1/f4<0。

3. phtographic lens group as claimed in claim 2, which is characterized in that the second lens image side surface is concave surface, and the 4th thoroughly Mirror object side is concave surface.

4. phtographic lens group as described in claim 1, which is characterized in that the abbe number of first lens is V1, this second The abbe number of lens is V2, and the abbe number of the 4th lens is V4, meets following relationship：

0.5<(V2+V4)/V1<1.0。

5. phtographic lens group as described in claim 1, which is characterized in that the 4th lens image side surface is convex surface, and the 5th thoroughly Mirror image side is concave surface.

6. phtographic lens group as claimed in claim 5, which is characterized in that the 5th lens have negative refracting power.

7. phtographic lens group as described in claim 1, which is characterized in that the radius of curvature of the 4th lens object side is R7, The radius of curvature of 4th lens image side surface is R8, meets following relationship：

-35<(R7+R8)/(R7-R8)<-1.0。

8. phtographic lens group as described in claim 1, which is characterized in that the maximum image height of the phtographic lens group is ImgH, should Second lens between the third lens at a distance from optical axis be T23, in optical axis between the third lens and the 4th lens On distance be T34, meet following relationship：

1.0<ImgH/(T23+T34)<2.2。

9. phtographic lens group as described in claim 1, which is characterized in that the second lens object side be convex surface, this second thoroughly Mirror image side is concave surface.

10. phtographic lens group as described in claim 1, which is characterized in that in light between second lens and the third lens Distance on axis is T23, which at a distance from optical axis is T34 between the 4th lens, and the third lens are in light Thickness on axis is CT3, and the 4th lens are CT4 in the thickness on optical axis, and the 5th lens are CT5 in the thickness on optical axis, Meet following relationship：

1.0<(T23+T34)/(CT3+CT4+CT5)。

11. phtographic lens group as described in claim 1, which is characterized in that second lens are CT2 in the thickness on optical axis, 4th lens are CT4 in the thickness on optical axis, meet following relationship：

2.0<(CT2+CT4)/(CT2-CT4)<50。

12. phtographic lens group as described in claim 1, which is characterized in that the focal length of the phtographic lens group be f, this first thoroughly The focal length of mirror is f1, and the focal length of second lens is f2, meets following relationship：

2.5<|f/f1|+|f/f2|。

13. phtographic lens group as described in claim 1, which is characterized in that the focal length of the phtographic lens group is f, and the 5th thoroughly The vertical range of mirror image lateral critical point and optical axis is Yc52, and wherein critical point is perpendicular to the section of optical axis and lens surface phase The point of contact on tangent line cut, critical point be with the immediate pole of optical axis, and critical point is not on optical axis, meeting following pass It is formula：

3.0<f/Yc52<20。

14. a kind of image-taking device, which is characterized in that include phtographic lens group as described in claim 1 and the photosensitive member of an electronics Part.

15. a kind of electronic device, which is characterized in that include image-taking device as claimed in claim 14.

16. a kind of phtographic lens group, which is characterized in that include sequentially by object side to image side：

One first lens, it is convex surface to have positive refracting power, object side；

One second lens, it is convex surface to have negative refracting power, object side, and image side surface is concave surface；

One the third lens；

One the 4th lens have negative refracting power, and object side and image side surface are all aspherical；And

One the 5th lens, image side surface are concave surface, and object side and image side surface are all aspherical, and in its object side and image side surface An at least surface is equipped with an at least point of inflexion；

Wherein, which is separately provided with an aperture, and without lens between the aperture and first lens；

Wherein, the lens in the phtographic lens group are five；

Second lens between the third lens at a distance from optical axis be T23, between the third lens and the 4th lens It is T34 in the distance on optical axis, which is CT3 in the thickness on optical axis, and the 4th lens are in the thickness on optical axis CT4, the 5th lens are CT5 in the thickness on optical axis, and the focal length of the phtographic lens group is f, and the focal length of first lens is f1, The focal length of second lens is f2, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, the aperture to the 5th Lens image side surface is SD in the distance on optical axis, and the first lens object side to the 5th lens image side surface is in the distance on optical axis Maximum image height for TD, the phtographic lens group is ImgH, meets following relationship：

0.90<(T23+T34)/(CT3+CT4+CT5)；

(|f/f4|+|f/f5|)/(|f/f1|+|f/f2|)<1.0；

0.7<SD/TD<1.1；

1.9<f/ImgH<5.0；And

0.3<CT4/CT3<2.5。

17. phtographic lens group as claimed in claim 16, which is characterized in that the half at maximum visual angle is in the phtographic lens group HFOV meets following relationship：

10.0[deg.]<HFOV<30.0[deg.]。

18. phtographic lens group as claimed in claim 17, which is characterized in that the 4th lens object side be concave surface, the 4th Lens image side surface is convex surface.

19. phtographic lens group as claimed in claim 17, which is characterized in that the third lens have positive refracting power.

20. phtographic lens group as claimed in claim 16, which is characterized in that the focal length of first lens is f1, and the 4th thoroughly The focal length of mirror is f4, meets following relationship：

-0.5<f1/f4<0。

21. phtographic lens group as claimed in claim 16, which is characterized in that in light between second lens and the third lens Distance on axis is T23, which at a distance from optical axis is T34 between the 4th lens, and the third lens are in light Thickness on axis is CT3, and the 4th lens are CT4 in the thickness on optical axis, and the 5th lens are CT5 in the thickness on optical axis, Meet following relationship：

1.0<(T23+T34)/(CT3+CT4+CT5)。

22. phtographic lens group as claimed in claim 16, which is characterized in that the maximum effective radius of the first lens object side Entrance pupil aperture for SD11, the phtographic lens group is EPD, meets following relationship：

0.95<EPD/(SD11*2)<1.1。

23. a kind of phtographic lens group, which is characterized in that include sequentially by object side to image side：

One first lens, it is convex surface to have positive refracting power, object side；

One second lens, it is convex surface to have negative refracting power, object side；

One the third lens；

One the 4th lens, it is concave surface to have negative refracting power, object side, and object side and image side surface are all aspherical；And

One the 5th lens, image side surface are concave surface, and object side and image side surface are all aspherical, and in its object side and image side surface An at least surface is equipped with an at least point of inflexion；

Wherein, which is separately provided with an aperture, and without lens between the aperture and first lens；

Wherein, the lens in the phtographic lens group are five；

Second lens between the third lens at a distance from optical axis be T23, between the third lens and the 4th lens It is T34 in the distance on optical axis, which is CT3 in the thickness on optical axis, and the 4th lens are in the thickness on optical axis CT4, the 5th lens are CT5 in the thickness on optical axis, and the focal length of the phtographic lens group is f, and the focal length of first lens is f1, The focal length of second lens is f2, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, the aperture to the 5th Lens image side surface is SD in the distance on optical axis, and the first lens object side to the 5th lens image side surface is in the distance on optical axis Maximum image height for TD, the phtographic lens group is ImgH, meets following relationship：

0.90<(T23+T34)/(CT3+CT4+CT5)；

(|f/f4|+|f/f5|)/(|f/f1|+|f/f2|)<1.0；

0.7<SD/TD<1.1；

1.9<f/ImgH<5.0；And

0.3<CT4/CT3<2.5。

24. phtographic lens group as claimed in claim 23, which is characterized in that the second lens image side surface is concave surface, this first All at least one side in lens, second lens, the third lens, the object side of the 4th lens and the 5th lens and image side surface To be aspherical, and first lens, second lens, the third lens, the material of the 4th lens and the 5th lens are all Plastic cement.

25. phtographic lens group as claimed in claim 24, which is characterized in that in the third lens object side and image side surface at least One surface is equipped with an at least point of inflexion.

26. phtographic lens group as claimed in claim 24, which is characterized in that the third lens object flank radius with this The radius of curvature of three lens image side surfaces is positive and negative jack per line.

27. phtographic lens group as claimed in claim 23, which is characterized in that in light between second lens and the third lens Distance on axis is T23, which at a distance from optical axis is T34 between the 4th lens, and the third lens are in light Thickness on axis is CT3, and the 4th lens are CT4 in the thickness on optical axis, and the 5th lens are CT5 in the thickness on optical axis, Meet following relationship：

1.15<(T23+T34)/(CT3+CT4+CT5)。

28. phtographic lens group as claimed in claim 23, which is characterized in that the abbe number of first lens is V1, this The abbe number of two lens is V2, and the abbe number of the 4th lens is V4, meets following relationship：

0.5<(V2+V4)/V1<1.0。

29. phtographic lens group as claimed in claim 23, which is characterized in that the maximum image height of the phtographic lens group is ImgH, The entrance pupil aperture of the phtographic lens group is EPD, meets following relationship：

0.85<EPD/ImgH<2.0。