CN106199931B - Imaging lens system, image-taking device and electronic device - Google Patents
Imaging lens system, image-taking device and electronic device Download PDFInfo
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- CN106199931B CN106199931B CN201510209766.5A CN201510209766A CN106199931B CN 106199931 B CN106199931 B CN 106199931B CN 201510209766 A CN201510209766 A CN 201510209766A CN 106199931 B CN106199931 B CN 106199931B
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Abstract
A kind of imaging lens system of present invention offer, image-taking device and electronic device, the imaging lens system 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；With refracting power the third lens, object side and image side surface are all aspherical；The 4th lens with refracting power, object side and image side surface are all aspherical；The 5th lens with negative refracting power, object side is concave surface at dipped beam axis, and its image side surface is convex surface at dipped beam axis, and its object side and image side surface are all aspherical.The imaging lens system is separately provided with an aperture, and without with refracting power lens between the aperture and first lens.Under aforementioned system configuration, other than meeting vista shot function, the optical design of slimming is not only more convenient to carry, and manufacturing cost is also greatly reduced, with the application of interests field.
Description
Technical field
The present invention is about a kind of imaging lens system and image-taking device, especially with regard to a kind of electronic device that can be applied to
Imaging lens system, image-taking device and electronic 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 imaging lens system faces the requirement having necessarily become smaller under market trend.In addition to requirement compact in size, because
The progress of semiconductor process technique makes the elemental area of photosensitive element reduce, and imaging lens, which synchronize, gradually to be sent out toward high pixel neighborhoods
Exhibition.Meanwhile the electronic devices such as the smart mobile phone of rise and tablet computer also promote the demand of high-quality miniature imaging lens systems.
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, meanwhile, the excessively high stepping back for also making consumer's prestige of production unit cost, because
This existing optical system cannot be satisfied current consumer and pursue the convenient photography demand with multifunctionality.
In conclusion being badly in need of a kind of imaging lens system meeting miniature requirement and high image quality in field.
Invention content
A kind of imaging lens system of present invention offer, image-taking device and electronic device, to meet miniaturization and high imaging product
The demand of matter.
The present invention provides a kind of imaging lens system, includes sequentially by object side to image side：One first lens have positive flexion
Power, object side are convex surface；One second lens have negative refracting power；One the third lens have refracting power, object side and picture
Side is all aspherical；One the 4th lens have refracting power, and object side and image side surface are all aspherical；And one the 5th lens,
With negative refracting power, object side is concave surface, and image side surface is convex surface, and object side and image side surface are all aspherical；Wherein, should
Imaging lens system is separately provided with an aperture, and without with refracting power lens between the aperture and first lens；Wherein, the imaging
The lens with refracting power are five in lens systems；Wherein, first lens, second lens, the third lens, the 4th
Between lens and the 5th lens adjacent lens on optical axis all have an airspace；The focal length of the imaging lens system is f, should
The radius of curvature of first lens object side is R1, and the radius of curvature of the 4th lens image side surface is R8, and the aperture to the 5th is thoroughly
Mirror image side 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
TD, second lens between the third lens at a distance from optical axis be T23, between the 4th lens and the 5th lens in
Distance on optical axis is T45, which at a distance from optical axis is T34 between the 4th lens, meets following relationship
Formula：
3.3<f/R1；
-1.8<f/R8<1.8；
0.7<SD/TD<1.0；And
0.5<(T23+T45)/T34<6.0。
The present invention separately provides a kind of image-taking device, including aforementioned imaging lens system 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 imaging lens system again, includes sequentially by object side to image side：One first lens have and just bend
Power is rolled over, object side is convex surface；One second lens have negative refracting power；One the third lens, have refracting power, object side and
Image side surface is all aspherical；One the 4th lens have refracting power, and object side and image side surface are all aspherical；And one the 5th thoroughly
Mirror, it is concave surface to have negative refracting power, object side, and image side surface is convex surface, and object side and image side surface are all aspherical；Its
In, which is separately provided with an aperture, and without with refracting power lens between the aperture and first lens；Wherein,
The lens with refracting power are five in the imaging lens system；Wherein, first lens, second lens, the third lens,
Between 4th lens and the 5th lens adjacent lens on optical axis all have an airspace；The focal length of the imaging lens system
Radius of curvature for f, the first lens object side is R1, and the radius of curvature of the 4th lens image side surface is R8, which extremely should
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 on optical axis
Distance be TD, the third lens in the thickness on optical axis be CT3, between the third lens and the 4th lens on optical axis away from
From for T34, meet following relationship：
3.3<f/R1；
-1.0<f/R8<1.0；
0.7<SD/TD<1.0；And
0.2<CT3/T34<2.2。
The present invention designs one group of imaging lens system for being suitable for vista shot for miniaturization device, and the system is in addition to full
Outside sufficient vista shot function, the optical design of slimming is not only more convenient to carry, and manufacturing cost is also greatly reduced, with interests field
Universal and application.
First lens design is that the aggregate capabilities of total system are concentrated on to the object of camera lens with positive refracting power by the present invention
Side, can effective control system volume, to promote the convenience carried.Second lens have negative refracting power, can update the system color
Difference.In addition, when the 5th lens are negative lens, avoidable back focal length is long, to meet the demand of miniaturization, while meeting the 5th thoroughly
The object side of mirror is concave surface, and image side surface is convex surface, can be conducive to principal point and be moved toward object side direction, while control field of view angle, to help
In the function of vista shot.
It when f/R1 meets the condition, can effectively inhibit image pickup scope, so that the image quality of local image is had higher
Resolution ratio.
When f/R8 meets the condition, the curvature on the 4th lens image side surface can be effectively controlled, while inhibiting stray light
It is incident in imaging surface, with the image quality of improving optical system.
When (T23+T45)/T34 meets the condition, effectively cloth can be matched in control system space, in lens assembling difficulty or ease
Degree is matched with mirror shape obtains balance on cloth.
When CT3/T34 meets the condition, can control the thickness of the third lens in zone of reasonableness, at the same allocate with
Distance between 4th lens, is configured with balance system.
Imaging lens system, image-taking device and the electronic device provided through the invention, in addition to meeting vista shot function
Outside, the optical design of slimming is not only more convenient to carry, and manufacturing cost is also greatly reduced, with the application of interests field.
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 is the schematic diagram for the distance that optical axis is parallel between lens surface maximum effective radius position of the present invention.
Figure 12 A are the smart mobile phones for the image-taking device that signal is installed with the present invention.
Figure 12 B are the tablet computers for the image-taking device that signal is installed with the present invention.
Figure 12 C are the wearable devices for the image-taking device that signal is installed with the present invention.
Main element symbol description：
100,200,300,400,500,600,700,800,900,1000 aperture
110,210,310,410,510,610,710,810,910,1,010 first lens
111,211,311,411,511,611,711,811,911,1011 object side
112,212,312,412,512,612,712,812,912,1012 image side surface
120,220,320,420,520,620,720,820,920,1,020 second lens
121,221,321,421,521,621,721,821,921,1021 object side
122,222,322,422,522,622,722,822,922,1022 image side surface
130,230,330,430,530,630,730,830,930,1030 the third lens
131,231,331,431,531,631,731,831,931,1031 object side
132,232,332,432,532,632,732,832,932,1032 image side surface
140,240,340,440,540,640,740,840,940,1040 the 4th lens
141,241,341,441,541,641,741,841,941,1041 object side
142,242,342,442,542,642,742,842,942,1042 image side surface
150,250,350,450,550,650,750,850,950,1050 the 5th lens
151,251,351,451,551,651,751,851,951,1051 object side
152,252,352,452,552,652,752,852,952,1052 image side surface
160,260,360,460,560,660,760,860,960,1060 infrared rays filter out filter element
170,270,370,470,570,670,770,870,970,1070 imaging surface
180,280,380,480,580,680,780,880,980,1080 electronics photosensitive element
1201 image-taking device, 1210 smart mobile phone
1220 tablet computer, 1230 wearable device
The 4th lens of L3 the third lens L4
The f-number of the focal length Fno imaging lens systems of F imaging lens systems
The half at maximum visual angle in HFOV imaging lens systems
The radius of curvature of R1 the first lens objects side
The radius of curvature of the 4th lens image side surfaces of R8
The radius of curvature of the 5th lens object sides R9
The radius of curvature of the 5th lens image side surfaces of R10
SD apertures are to the 5th lens image side surface in the distance on optical axis
The the first lens object sides TD are to the 5th lens image side surface in the distance on optical axis
The second lens of T23 are between the third lens at a distance from optical axis
T34 the third lens are between the 4th lens at a distance from optical axis
The 4th lens of T45 are between the 5th lens at a distance from optical axis
The focal length of the 4th lens of f4
The focal length of the 5th lens of f5
The maximum image height of ImgH imaging lens systems
ET34 the third lens image side surface maximum effective radius position and the 4th lens object side surface maximum effectively half
The distance of optical axis is parallel between path position
In the first lens of Nmax, the second lens, the third lens, the refractive index of the 4th lens and the 5th lens most
Big refractive index
TL the first lens objects side is between imaging surface at a distance from optical axis
CT3 the third lens are in the thickness on optical axis
The abbe number of the second lens of V2
The abbe number of V3 the third lens
The abbe number of the first lens of V1
The entrance pupil aperture of EPD imaging lens systems
Specific implementation mode
The present invention provides a kind of imaging lens system, include sequentially by object side to image side the first lens with refracting power,
Second lens, the third lens, the 4th lens and the 5th lens.Imaging lens system is separately provided with an aperture, and the aperture with should
Nothing has the lens of refracting power between first lens, and it is five to have the lens of refracting power in imaging lens system.
First lens have positive refracting power, are the object side that the aggregate capabilities of total system are concentrated on to camera lens, can have
Control system volume is imitated, to promote the convenience carried.The first lens object side is convex surface at dipped beam axis, can adjust and just bends
Roll over power configuration, and then the system bulk miniaturization that tightens control.
Second lens have negative refracting power can update the system aberration.The second lens image side surface can be recessed at dipped beam axis
Face contributes to lens error correction.
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 the picture of modified off-axis visual field
Difference, and the light that can suppress off-axis visual field is incident in the angle on electronics photosensitive element, and effect is received to increase electronics photosensitive element
Rate.
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 have negative refracting power, contribute to the back focal length for shortening imaging lens system, maintain its miniaturization.It should
5th lens object side can be concave surface at dipped beam axis, and the 5th lens image side surface can be convex surface at dipped beam axis, be that can be conducive to
Principal point is moved toward object side direction, while controlling field of view angle, to help the function of vista shot.
The focal length of the imaging lens system is f, and the radius of curvature of the first lens object side is R1.When the imaging lens system
System meets following relationship：3.3<It when f/R1, can effectively inhibit image pickup scope, so that the image quality of local image is had higher
Resolution ratio.
The focal length of the imaging lens system is f, and the radius of curvature of the 4th lens image side surface is R8.When the imaging lens system
System meets following relationship：-1.8<f/R8<When 1.8, the curvature on the 4th lens image side surface can be effectively controlled, while inhibiting miscellaneous
Astigmatism is incident in imaging surface, with the image quality of improving optical system；Preferably, meeting following relationship：-1.4<f/R8<
1.4；More preferably, meet following relationship：-1.0<f/R8<1.0.
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 imaging lens system meets following relationship：0.7<SD/TD<It, can when 1.0
In control into angular and meanwhile also can balance system overall length, avoid system bulk excessive.
Second lens at a distance from optical axis are T23, the 4th lens and the 5th lens between the third lens
Between in the distance on optical axis be T45, the third lens between the 4th lens at a distance from optical axis be T34.When this at
As lens systems meet following relationship：0.5<(T23+T45)/T34<When 6.0, can effectively control system space match cloth, with
Lens assembling difficulty is matched with mirror shape obtains balance on cloth；Preferably, meeting following relationship：2.3<(T23+T45)/
T34<5.5。
The third lens in the thickness on optical axis be CT3, between the third lens and the 4th lens on optical axis away from
From for T34.When the imaging lens system meets following relationship：0.2<CT3/T34<When 2.2, the thickness of the third lens can control
It spends in zone of reasonableness, while allocating at a distance between the 4th lens, configured with balance system；Preferably, meeting following relationship
Formula：0.5<CT3/T34<1.9.
The focal length of 4th lens is f4, and the focal length of the 5th lens is f5.When the imaging lens system meets following pass
It is formula：0<When f4/f5, helping reduces system sensitivity generates with spherical aberration is reduced.
The radius of curvature of 5th lens object side is R9, and the radius of curvature of the 5th lens image side surface is R10.When this at
As lens systems meet following relationship：-1.0<(R9-R10)/(R9+R10)<When 0, contribute to the generation for reducing astigmatism to tie up
Hold good image quality.
The focal length of the imaging lens system is f, and the maximum image height of the imaging lens system is ImgH (i.e. electronics photosensitive elements
The half of effective sensing region diagonal line length).When the imaging lens system meets following relationship：2.1<f/ImgH<When 6.0,
The miniaturization of system is can help to, and obtains good image quality.
The third lens are T34 at a distance from optical axis between the 4th lens, and the third lens image side surface is maximum
It is ET34 that effective radius position, which is parallel between the 4th lens object side surface maximum effective radius position at a distance from optical axis,.When
The imaging lens system meets following relationship：2.0<When T34/ET34, the light path that can be reconciled between off-axis visual field difference light is matched
It sets and light angle, with modified off-axis aberration.Please refer to Figure 11, the invention discloses imaging lens system in, ET34 is third
Lens L3) image side surface maximum effective radius position and the 4th lens L4) it is parallel between the maximum effective radius position of object side surface
In the distance of optical axis.Wherein, the third lens L3 between the 4th lens L4 at a distance from optical axis be T34.
In first lens, second lens, the third lens, the refractive index of the 4th lens and the 5th lens most
Big refractive index is Nmax.When the imaging lens system meets following relationship：1.50<Nmax<When 1.70, it can help to suitably match
Eyeglass material is set, and promotes the degree of freedom of design.
The object side of first lens between an imaging surface at a distance from optical axis be TL, the coke of the imaging lens system
Away from for f.When the imaging lens system meets following relationship：0.75<TL/f<When 1.0, micromation can pursued simultaneously, also can
Effectively control angular field of view, to meet multi-functional photography demand.
The half at maximum visual angle is HFOV in the imaging lens system.When the imaging lens system meets following relationship：
0.3<tan(2*HFOV)<When 1.0, it can be conducive to obtain distant place thin portion image in imaging surface, to reach effect of looking in the distance.
The object side of first lens between an imaging surface at a distance from optical axis be TL.When the imaging lens system is full
Sufficient following relationship：TL<When 7.5mm, can meet the needs of miniaturization.
The abbe number of second lens is V2, and the abbe number of the third lens is V3, the dispersion system of first lens
Number is V1.When the imaging lens system meets following relationship：0.5<(V2+V3)/V1<It, can effective update the system color when 1.0
Difference, to promote image quality.
The radius of curvature of 5th lens image side surface is R10, and the radius of curvature of the 4th lens image side surface is R8.When this at
As lens systems meet following relationship：-0.2<R10/R8<When 0.9, suppressor system stray light, while also can effectively control
It is burnt after system, to meet the needs of miniaturization.
The maximum image height of the imaging lens system is ImgH, and the entrance pupil aperture of the imaging lens system is EPD.When the imaging
Lens systems meet following relationship：0.7<EPD/ImgH<When 1.6, it is possible to provide sufficient incident light quantity, and be conducive to maintain this at
As the miniaturization of lens systems, to be equipped on frivolous portable electronic product.
The invention discloses imaging lens system in, the materials of lens can be glass or plastics, if the material of lens is glass
Glass can then increase the degree of freedom of imaging lens system refracting power configuration, if lens material is plastics, 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), it obtains
More controlled variable, to cut down aberration, and then reduce the number that lens use, thus can effectively reduce the present invention at
As the total length of lens systems.
The invention discloses imaging lens system in, a diaphragm can be at least set, such as aperture diaphragm (Aperture
Stop), credit light diaphragm (Glare Stop) or field stop (Field Stop) etc. help to reduce stray light to promote image
Quality.
The invention discloses imaging lens system in, aperture configuration can be it is preposition or in set, preposition aperture implies that aperture is set
Be placed between object and first lens, in set aperture and then indicate that aperture is set between first lens and imaging surface, preposition light
Circle can make the outgoing pupil (Exit Pupil) of imaging lens system generate longer distance with imaging surface, 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 imaging lens system that there is the advantage of wide-angle lens.
The invention discloses imaging lens system in, if lens surface is convex surface and when not defining the convex surface position, table
Show 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 this is thoroughly
Mirror 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
Refracting power or focal length are refracting power or focal length of the lens at dipped beam axis.
The invention discloses imaging lens system in, the imaging surface (Image Surface) of the imaging lens system, according to it
The difference of corresponding electronics photosensitive element, can be a flat surface or have the curved surface of any curvature, particularly relate to concave surface towards past object side
To curved surface.
The invention discloses the more visual demand of imaging lens system be applied in the optical system of mobile focusing, and with
The characteristic of excellent lens error correction and good image quality.The present invention also many-sided can be applied to 3D (three-dimensional) image capturing, number
Camera, mobile device, digital flat, smart television, network monitoring device, somatic sensation television game machine, drive recorder, reversing development dress
Set in the electronic devices such as wearable device.
The present invention more provides a kind of image-taking device, and it includes aforementioned imaging lens system and an electronics photosensitive elements, should
Electronics photosensitive element is set to the imaging surface of the imaging lens system, therefore image-taking device can pass through the design of imaging lens system
Reach optimal imaging effect.Preferably, the imaging lens system can further include lens barrel (Barrel Member), support dress
It sets (Holder Member) or combinations thereof.
Figure 12 A, Figure 12 B, Figure 12 C are please referred to, which can be equipped on electronic device comprising, but it is unlimited
In：Smart mobile phone 1210, tablet computer 1220 or wearable device 1230.Before to take off electronic device only be exemplarily to illustrate
The practice example of the image-taking device of the present invention not limits the operation strategies of the image-taking device of the present invention.Preferably, the electricity
Sub-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 imaging lens system institute accompanying drawings will be coordinated to give by following specific examples
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 an imaging lens system (not another label) and an electronics photosensitive element 180, the imaging lens system is main
By five the first lens 110, the second lens 120, the third lens 130, the 4th lens 140 and the 5th lens with refracting power
150 are constituted, and include sequentially by object side to image side：
One the first lens 110 with positive refracting power, material are plastics, and object side 111 is convex surface at dipped beam axis,
Its image side surface 112 is concave 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 plastics, 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 plastics, and object side 131 is convex surface at dipped beam axis,
Its image side surface 132 is concave surface at dipped beam axis, and object side 131 and image side surface 132 are all aspherical, and its image side surface 132 has
There is an at least point of inflexion；
One the 4th lens 140 with negative refracting power, material are plastics, 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 plastics, and object side 151 is concave surface at dipped beam axis,
Its image side surface 152 is convex surface at dipped beam axis, and object side 151 and image side surface 152 are all aspherical；
The imaging lens system is separately provided with an aperture 100, is set between object and first lens 110, and should
Without the lens with refracting power between aperture 100 and first lens 110；It has additionally comprised an infrared ray and has filtered out filter element 160
It is placed 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 set
It is placed 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 imaging lens system is f, and the f-number of the imaging lens system is Fno, this at
As the half at maximum visual angle in lens systems is HFOV, first lens 110 in the imaging lens system, second lens 120,
Largest refractive index in the refractive index of the third lens 130, the 4th lens 140 and the 5th lens 150 is Nmax, number
Value is：F=5.70 (millimeter), Fno=2.82, HFOV=21.0 (degree), tan (2*HFOV)=0.900, Nmax=1.650.
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 the third lens 130 is V3, and relational expression is：(V2+V3)/V1=0.77.
In first embodiment, which is CT3 in the thickness on optical axis, and the third lens 130 are saturating with the 4th
In the distance on optical axis it is T34 between mirror 140, relational expression is：CT3/T34=0.79.
In first embodiment, which at a distance from optical axis is T34 between the 4th lens 140, this
Between 140 object side surface maximum effective radius position of three lens, 130 image side surface maximum effective radius position and the 4th lens
The distance for being parallel to optical axis is ET34, and relational expression is：T34/ET34=2.49.
In first embodiment, which at a distance from optical axis is T23 between the third lens 130, this
Four lens 140 at a distance from optical axis are T45, the third lens 130 and the 4th lens 140 between the 5th lens 150
Between in the distance on optical axis be T34, relational expression is：(T23+T45)/T34=2.58.
In first embodiment, the focal length of the imaging lens system is f, and the radius of curvature of the 110 object side of the first lens is
R1, relational expression are：F/R1=4.01.
In first embodiment, the focal length of the imaging lens system is f, and the radius of curvature of 140 image side surface of the 4th lens is
R8, relational expression are：F/R8=-0.42.
In first embodiment, the radius of curvature of 150 image side surface of the 5th lens is R10, the 4th saturating 140 mirror image side
Radius of curvature is R8, and relational expression is：R10/R8=0.77.
In first embodiment, the radius of curvature of 150 object side of the 5th lens is R9,150 image side surface of the 5th lens
Radius of curvature is R10, and relational expression is：(R9-R10)/(R9+R10)=- 0.60.
In first embodiment, the focal length of the 4th lens 140 is f4, and the focal length of the 5th lens 150 is f5, relational expression
For：F4/f5=2.23.
In first embodiment, the aperture to 150 image side surface of the 5th lens is SD, first lens in the distance on optical axis
110 object sides are 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 imaging lens system is f, and the maximum image height of the imaging lens system is ImgH,
Its relational expression is：F/ImgH=2.56.
In first embodiment, the entrance pupil aperture of the imaging lens system is EPD, and the maximum image height of the imaging lens system is
ImgH, relational expression are：EPD/ImgH=0.91.
In first embodiment, the object side 111 of first lens is at a distance from optical axis between the imaging surface 170
The focal length of TL, the imaging lens system are f, and relational expression is：TL/f=0.90.
In first embodiment, the object side 111 of first lens is at a distance from optical axis between the imaging surface 170
TL, numerical value are：TL=5.15 (millimeter).
《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 an imaging lens system (not another label) and an electronics photosensitive element 280, the imaging lens system is main
By five the first lens 210, the second lens 220, the third lens 230, the 4th lens 240 and the 5th lens with refracting power
250 are constituted, and include sequentially by object side to image side：
One the first lens 210 with positive refracting power, material are plastics, 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 plastics, 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 plastics, and object side 231 is concave surface at dipped beam axis,
Its image side surface 232 at dipped beam axis be convex 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 plastics, and object side 241 is concave surface at dipped beam axis,
Its image side surface 242 is concave 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 plastics, and object side 251 is concave surface at dipped beam axis,
Its image side surface 252 is convex surface at dipped beam axis, and object side 251 and image side surface 252 are all aspherical；
The imaging lens system is separately provided with an aperture 200, is placed between an object and first lens 210, and should
Without the lens with refracting power between aperture 200 and first lens 210；It has additionally comprised an infrared ray and has filtered out filter element 260
It is placed 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 set
It is placed 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 an imaging lens system (not another label) and an electronics photosensitive element 380, the imaging lens system is main
By five the first lens 310, the second lens 320, the third lens 330, the 4th lens 340 and the 5th lens with refracting power
350 are constituted, and include sequentially by object side to image side：
One the first lens 310 with positive refracting power, material are plastics, and object side 311 is convex surface at dipped beam axis,
Its image side surface 312 is convex 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 plastics, and object side 321 is concave 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 plastics, 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 image side surface 332 has
There is an at least point of inflexion；
One the 4th lens 340 with negative refracting power, material are plastics, 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 plastics, and object side 351 is concave surface at dipped beam axis,
Its image side surface 352 is convex surface at dipped beam axis, and object side 351 and image side surface 352 are all aspherical；
The imaging lens system is separately provided with an aperture 300, is placed between first lens 310 and second lens 320,
And without the lens with refracting power between the aperture 300 and first lens 310；It has additionally comprised an infrared ray and has filtered out filter element
360 are placed between the 5th lens 350 and an imaging surface 370, and material is glass and does not influence focal length；The electronics photosensitive element
380 are set 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 an imaging lens system (not another label) and an electronics photosensitive element 480, the imaging lens system is main
By five the first lens 410, the second lens 420, the third lens 430, the 4th lens 440 and the 5th lens with refracting power
450 are constituted, and include sequentially by object side to image side：
One the first lens 410 with positive refracting power, material are plastics, 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 plastics, and object side 421 is concave 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 plastics, and object side 431 is convex surface at dipped beam axis,
Its image side surface 432 is convex surface at dipped beam axis, and object side 431 and image side surface 432 are all aspherical, and its image side surface 432 has
There is an at least point of inflexion；
One the 4th lens 440 with negative refracting power, material are plastics, 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 negative refracting power, material are plastics, and object side 451 is concave surface at dipped beam axis,
Its image side surface 452 is convex surface at dipped beam axis, and object side 451 and image side surface 452 are all aspherical；
The imaging lens system is separately provided with an aperture 400, is placed between an object and first lens 410, and should
Without the lens with refracting power between aperture 400 and first lens 410；It has additionally comprised an infrared ray and has filtered out filter element 460
It is placed 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 set
It is placed 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 an imaging lens system (not another label) and an electronics photosensitive element 580, the imaging lens system it is main
By five the first lens 510, the second lens 520, the third lens 530, the 4th lens 540 and the 5th lens with refracting power
550 are constituted, and include sequentially by object side to image side：
One the first lens 510 with positive refracting power, material are plastics, 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 plastics, and object side 521 is concave 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 positive refracting power, material are plastics, and object side 531 is convex surface at dipped beam axis,
Its image side surface 532 is concave surface at dipped beam axis, and object side 531 and image side surface 532 are all aspherical, and its image side surface 532 has
There is an at least point of inflexion；
One the 4th lens 540 with negative refracting power, material are plastics, and object side 541 is concave surface at dipped beam axis,
Its image side surface 542 is concave 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 negative refracting power, material are plastics, and object side 551 is concave surface at dipped beam axis,
Its image side surface 552 is convex surface at dipped beam axis, and object side 551 and image side surface 552 are all aspherical；
The imaging lens system 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 an imaging lens system (not another label) and an electronics photosensitive element 680, the imaging lens system is main
By five the first lens 610, the second lens 620, the third lens 630, the 4th lens 640 and the 5th lens with refracting power
650 are constituted, and include sequentially by object side to image side：
One the first lens 610 with positive refracting power, material are plastics, and object side 611 is convex surface at dipped beam axis,
Its image side surface 612 is concave 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 plastics, 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 negative refracting power, material are plastics, 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 image side surface 632 has
There is an at least point of inflexion；
One the 4th lens 640 with negative refracting power, material are plastics, 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 plastics, and object side 651 is concave surface at dipped beam axis,
Its image side surface 652 is convex surface at dipped beam axis, and object side 651 and image side surface 652 are all aspherical；
The imaging lens system is separately provided with an aperture 600, is placed between an object and first lens 610, and should
Without the lens with refracting power between aperture 600 and first lens 610；It has additionally comprised an infrared ray and has filtered out filter element 660
It is placed between the 5th lens 650 and an imaging surface 670, material is glass and does not influence focal length；The electronics photosensitive element 680 is set
It is placed 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 an imaging lens system (not another label) and an electronics photosensitive element 780, the imaging lens system is main
By five the first lens 710, the second lens 720, the third lens 730, the 4th lens 740 and the 5th lens with refracting power
750 are constituted, and include sequentially by object side to image side：
One the first lens 710 with positive refracting power, material are plastics, and object side 711 is convex surface at dipped beam axis,
Its image side surface 712 is concave 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 plastics, 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 negative refracting power, material are plastics, 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；
One the 4th lens 740 with positive refracting power, material are plastics, and object side 741 is convex 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 negative refracting power, material are plastics, and object side 751 is concave surface at dipped beam axis,
Its image side surface 752 is convex surface at dipped beam axis, and object side 751 and image side surface 752 are all aspherical；
The imaging lens system is separately provided with an aperture 700, is placed between an object and first lens 710, and should
Without the lens with refracting power between aperture 700 and first lens 710；It has additionally comprised an infrared ray and has filtered out filter element 760
It is placed 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 set
It is placed 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 an imaging lens system (not another label) and an electronics photosensitive element 880, the imaging lens system is main
By five the first lens 810, the second lens 820, the third lens 830, the 4th lens 840 and the 5th lens with refracting power
850 are constituted, and include sequentially by object side to image side：
One the first lens 810 with positive refracting power, material are plastics, and object side 811 is convex surface at dipped beam axis,
Its image side surface 812 is concave 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 plastics, 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 plastics, and object side 831 is convex surface at dipped beam axis,
Its image side surface 832 is concave surface at dipped beam axis, and its object side 831 and image side surface 832 are all aspherical, and its image side surface 832
With an at least point of inflexion；
One the 4th lens 840 with negative refracting power, material are plastics, 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 negative refracting power, material are plastics, and object side 851 is concave surface at dipped beam axis,
Its image side surface 852 is convex surface at dipped beam axis, and object side 851 and image side surface 852 are all aspherical；
The imaging lens system is separately provided with an aperture 800, is placed between an object and first lens 810, and should
Without the lens with refracting power between aperture 800 and first lens 810；It has additionally comprised an infrared ray and has filtered out filter element 860
It is placed 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 set
It is placed 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 an imaging lens system (not another label) and an electronics photosensitive element 980, the imaging lens system is main
By five the first lens 910, the second lens 920, the third lens 930, the 4th lens 940 and the 5th lens with refracting power
950 are constituted, and include sequentially by object side to image side：
One the first lens 910 with positive refracting power, material are plastics, and object side 911 is convex surface at dipped beam axis,
Its image side surface 912 is convex 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 plastics, and object side 921 is concave 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 plastics, and object side 931 is convex surface at dipped beam axis,
Its image side surface 932 at dipped beam axis be convex surface, object side 931 and image side surface 932 are all aspherical, and its object side 931 and
Image side surface 932 all has an at least point of inflexion；
One the 4th lens 940 with negative refracting power, material are plastics, 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 plastics, and object side 951 is concave surface at dipped beam axis,
Its image side surface 952 is convex surface at dipped beam axis, and object side 951 and image side surface 952 are all aspherical；
The imaging lens system is separately provided with an aperture 900, is placed between first lens 910 and second lens 920,
And without the lens with refracting power between the aperture 900 and first lens 910；It has additionally comprised an infrared ray and has filtered out filter element
960 are placed between the 5th lens 950 and an imaging surface 970, and material is glass and does not influence focal length；The electronics photosensitive element
980 are set 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 an imaging lens system (not another label) and an electronics photosensitive element 1080, imaging lens system master
It will be by five with the first lens 1010 of refracting power, the second lens 1020, the third lens 1030, the 4th lens 1040 and the
Five lens 1050 are constituted, and include sequentially by object side to image side：
One the first lens 1010 with positive refracting power, material are plastics, and object side 1011 is convex at dipped beam axis
Face, image side surface 1012 is convex 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 plastics, and object side 1021 is recessed 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 plastics, 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 negative refracting power, material are plastics, 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 plastics, and object side 1051 is recessed at dipped beam axis
Face, image side surface 1052 are convex surface at dipped beam axis, and object side 1051 and image side surface 1052 are all aspherical；
The imaging lens system is separately provided with an aperture 1000, is placed in first lens 1010 and second lens 1020
Between, and without the lens with refracting power between the aperture 1000 and first lens 1010；An infrared ray has been additionally comprised to filter out
Optical element 1060 is placed between the 5th lens 1050 and an imaging surface 1070, and material is glass and does not influence focal length；The electronics
Photosensitive element 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 imaging lens system embodiment different numerical value change tables, so
The numerical value change of each embodiment of the present invention is all true to test gained, even if using different numerical value, mutually isostructural product should belong to
In the invention discloses protection category, therefore above explanation is described and schema be only used as it is illustrative, it is non-limiting this hair
The right of bright exposure.
Claims (23)
1. a kind of imaging lens system, 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, object side and image side surface are all aspherical；
One the 4th lens, object side and image side surface are all aspherical；And
One the 5th lens, it is concave surface to have negative refracting power, object side, and image side surface is convex surface, and object side and image side surface are all
It is aspherical；
Wherein, which is separately provided with an aperture, and without lens between the aperture and first lens；
Wherein, lens are five in the imaging lens system；
Wherein, between first lens, second lens, the third lens, the 4th lens and the 5th lens adjacent lens in
All there is an airspace on optical axis；
The focal length of the imaging lens system is f, and the radius of curvature of the first lens object side is R1, the 4th lens image side surface
Radius of curvature is R8, and the aperture to the 5th lens image side surface is SD in the distance on optical axis, which extremely should
5th lens image side surface is TD in the distance on optical axis, which is at a distance from optical axis between the third lens
T23, the 4th lens between the 5th lens at a distance from optical axis be T45, between the third lens and the 4th lens
It is T34 in the distance on optical axis, the maximum image height of the imaging lens system is ImgH, meets following relationship：
3.3<f/R1；
-1.8<f/R8<1.8；
0.7<SD/TD<1.0；
0.5<(T23+T45)/T34<6.0；And
2.1<f/ImgH<6.0。
2. imaging lens system as described in claim 1, which is characterized in that the 4th lens, which have, bears refracting power, and the 4th
The focal length of lens is f4, and the focal length of the 5th lens is f5, meets following relationship：
0<f4/f5。
3. imaging lens system as described in claim 1, which is characterized in that the second lens image side surface is concave surface, the third
Lens have positive refracting power, and the focal length of the imaging lens system is f, and the radius of curvature of the 4th lens image side surface is R8, is met
Following relationship：
-1.4<f/R8<1.4。
4. imaging lens system as described in claim 1, which is characterized in that the 4th lens image side surface is convex surface.
5. imaging lens system as described in claim 1, which is characterized in that the 4th lens object side be concave surface, the 5th
The radius of curvature of lens object side is R9, and the radius of curvature of the 5th lens image side surface is R10, meets following relationship：
-1.0<(R9-R10)/(R9+R10)<0。
6. imaging lens system as described in claim 1, which is characterized in that in light between the third lens and the 4th lens
Distance on axis is T34, which has with the 4th lens object side surface maximum
The distance that optical axis is parallel between effect radial location is ET34, meets following relationship：
2.0<T34/ET34。
7. imaging lens system as described in claim 1, which is characterized in that first lens, second lens, the third are saturating
Largest refractive index in the refractive index of mirror, the 4th lens and the 5th lens is Nmax, meets following relationship：
1.50<Nmax<1.70。
8. imaging lens system as described in claim 1, which is characterized in that in light between second lens and the third lens
Distance on axis is T23, and the 4th lens are T45 at a distance from optical axis between the 5th lens, the third lens with should
Between 4th lens in the distance on optical axis be T34, meet following relationship：
2.3<(T23+T45)/T34<5.5。
9. imaging lens system as described in claim 1, which is characterized in that the object sides of first lens and an imaging surface it
Between in the distance on optical axis be TL, the focal length of the imaging lens system is f, meets following relationship：
0.75<TL/f<1.0。
10. imaging lens system as described in claim 1, which is characterized in that first lens, second lens, the third
The material of lens, the 4th lens and the 5th lens is all plastics, and the half at maximum visual angle is in the imaging lens system
HFOV meets following relationship：
0.3<tan(2*HFOV)<1.0。
11. imaging lens system as described in claim 1, which is characterized in that in the third lens object side and image side surface extremely
A few surface is equipped with an at least point of inflexion, and the object sides of first lens at a distance from optical axis is TL between an imaging surface,
Meet following relationship：
TL<7.5mm。
12. a kind of image-taking device, which is characterized in that photosensitive comprising imaging lens system as described in claim 1 and an electronics
Element.
13. a kind of electronic device, which is characterized in that include image-taking device as claimed in claim 12.
14. a kind of imaging lens system, 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, object side and image side surface are all aspherical；
One the 4th lens, object side and image side surface are all aspherical；And
One the 5th lens, it is concave surface to have negative refracting power, object side, and image side surface is convex surface, and object side and image side surface are all
It is aspherical；
Wherein, which is separately provided with an aperture, and without lens between the aperture and first lens；
Wherein, lens are five in the imaging lens system；
Wherein, between first lens, second lens, the third lens, the 4th lens and the 5th lens adjacent lens in
All there is an airspace on optical axis；
The focal length of the imaging lens system is f, and the radius of curvature of the first lens object side is R1, the 4th lens image side surface
Radius of curvature is R8, and the aperture to the 5th lens image side surface is SD in the distance on optical axis, which extremely should
5th lens image side surface in the distance on optical axis be TD, the third lens in the thickness on optical axis be CT3, the third lens with should
In the distance on optical axis it is T34 between 4th lens, the maximum image height of the imaging lens system is ImgH, meets following relationship
Formula：
3.3<f/R1；
-1.0<f/R8<1.0；
0.7<SD/TD<1.0；
0.2<CT3/T34<2.2；And
2.1<f/ImgH<6.0。
15. imaging lens system as claimed in claim 14, which is characterized in that the second lens image side surface is concave surface, this
There is three lens positive refracting power, the 4th lens to have negative refracting power.
16. imaging lens system as claimed in claim 14, which is characterized in that in the third lens object side and image side surface extremely
A few surface is equipped with an at least point of inflexion.
17. imaging lens system as claimed in claim 14, which is characterized in that the abbe number of second lens is V2, should
The abbe number of the third lens is V3, and the abbe number of first lens is V1, meets following relationship：
0.5<(V2+V3)/V1<1.0。
18. imaging lens system as claimed in claim 14, which is characterized in that first lens, second lens, the third
The material of lens, the 4th lens and the 5th lens is all plastics, and the half at maximum visual angle is in the imaging lens system
HFOV meets following relationship：
0.3<tan(2*HFOV)<1.0。
19. imaging lens system as claimed in claim 14, which is characterized in that the third lens are in the thickness on optical axis
CT3, the third lens between the 4th lens at a distance from optical axis be T34, meet following relationship：
0.5<CT3/T34<1.9。
20. imaging lens system as claimed in claim 14, which is characterized in that the radius of curvature of the 5th lens image side surface is
The radius of curvature of R10, the 4th lens image side surface are R8, meet following relationship：
-0.2<R10/R8<0.9。
21. imaging lens system as claimed in claim 14, which is characterized in that the entrance pupil aperture of the imaging lens system is
The maximum image height of EPD, the imaging lens system are ImgH, meet following relationship：
0.7<EPD/ImgH<1.6。
22. a kind of image-taking device, which is characterized in that photosensitive comprising imaging lens system as claimed in claim 14 and an electronics
Element.
23. a kind of electronic device, which is characterized in that include image-taking device as claimed in claim 22.
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| CN106199931B true CN106199931B (en) | 2018-09-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101983187B1 (en) * | 2016-12-20 | 2019-05-28 | 삼성전기주식회사 | Optical Imaging System |
| CN106802474B (en) * | 2017-03-22 | 2022-11-22 | 浙江舜宇光学有限公司 | Imaging lens |
| CN107577033B (en) * | 2017-10-24 | 2020-01-07 | 浙江舜宇光学有限公司 | Imaging lens |
| WO2019080556A1 (en) | 2017-10-24 | 2019-05-02 | 浙江舜宇光学有限公司 | Imaging lens |
| WO2021119885A1 (en) * | 2019-12-16 | 2021-06-24 | 诚瑞光学(常州)股份有限公司 | Optical camera lens |
| CN114911029A (en) * | 2021-02-09 | 2022-08-16 | 三营超精密光电(晋城)有限公司 | Optical imaging system, camera module and electronic device |
| CN115308890B (en) * | 2022-10-12 | 2022-12-20 | 昆明全波红外科技有限公司 | Compact type long-wave manual zooming infrared lens |
| CN116774408B (en) * | 2023-08-25 | 2024-01-09 | 江西欧菲光学有限公司 | Optical system, lens module and electronic equipment |
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