CN106556919A - Imagery optical system, image-taking device and electronic installation - Google Patents
Imagery optical system, image-taking device and electronic installation Download PDFInfo
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- CN106556919A CN106556919A CN201510638188.7A CN201510638188A CN106556919A CN 106556919 A CN106556919 A CN 106556919A CN 201510638188 A CN201510638188 A CN 201510638188A CN 106556919 A CN106556919 A CN 106556919A
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Abstract
The invention discloses a kind of imagery optical system, image-taking device and electronic installation.Imagery optical system sequentially includes the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens by thing side to image side.First lens have positive refracting power, are convex surface at its thing side surface dipped beam axle.It is concave surface at 3rd lens image side surface dipped beam axle.It is concave surface at 4th lens image side surface dipped beam axle.5th lens have positive refracting power.6th lens have negative refracting power, are concave surface at its image side surface dipped beam axle, and its image side surface is located off axis comprising an at least convex surface, and its thing side surface and image side surface are all aspheric surface.When a specific condition is satisfied, the miniaturization of imagery optical system can be maintained, the characteristics of short overall length is had concurrently under the configuration needs at large aperture with big visual angle.Invention additionally discloses the image-taking device with above-mentioned imaging optical system and the electronic installation with image-taking device.
Description
Technical field
The invention relates to a kind of imagery optical system and image-taking device, and answer in particular to a kind of
With miniaturization imagery optical system on the electronic device and image-taking device.
Background technology
In recent years, with the rise of the electronic product with camera function, the demand of optical system is day by day improved.
The photo-sensitive cell of general optical system is nothing more than being photosensitive coupling element (Charge Coupled Device, CCD)
Or Complimentary Metal-Oxide semiconductor element (Complementary Metal-Oxide Semiconductor
Sensor, CMOS Sensor) two kinds, and progressing greatly with manufacture of semiconductor technology so that photo-sensitive cell
Pixel Dimensions reduce, and optical system gradually develops toward high pixel neighborhoods, therefore the also day of the requirement to image quality
Benefit increases.
Tradition is equipped on using four or five chip lens arrangements more than the optical system on electronic product, and in intelligence
Can the high standard mobile device such as mobile phone and portable apparatus it is prevailing under, highlighted electronic product lightening
Demand, the pick-up lenss which carries are also gradually towards toward large aperture, the development of short overall length.But known optical system
Unite due to being difficult to have the demand of large aperture and short overall length concurrently, therefore, it is difficult to being equipped on frivolous electronic installation.
Though make further progress six chip optical systems at present, in product towards large aperture and Miniaturization Design
While, Chang Yinqi too high veiling glare and cause its image quality reach demand.
The content of the invention
The present invention provides a kind of imagery optical system, image-taking device and electronic installation, by the 3rd lens picture
Side surface and the 4th lens image side surface are all concave surface, can slow down the 3rd lens and the 4th lens integral face shape
Change, effectively reduces the generation of veiling glare, to have good image quality and manufacturing concurrently.Furthermore, also may be used
The miniaturization of imagery optical system is maintained, to have short overall length under the configuration needs at large aperture with big visual angle concurrently
The characteristics of.
A kind of imagery optical system is provided according to the present invention, by thing side to image side sequentially comprising the first lens,
Second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens.First lens have just bends
Folding power, is convex surface at its thing side surface dipped beam axle.It is concave surface at 3rd lens image side surface dipped beam axle.4th
It is concave surface at the dipped beam axle of lens image side surface.5th lens have positive refracting power.6th lens have negative flexion
Power, is concave surface at its image side surface dipped beam axle, and place includes an at least convex surface, and its thing off axis on its image side surface
Side surface and image side surface are all aspheric surface.The lens of imagery optical system are six, and wantonly two is adjacent saturating
There is between mirror a air gap, the focal length of the first lens is f1, and the focal length of the 3rd lens is f3, and the 4th is saturating
The focal length of mirror is f4, and the focal length of the 5th lens is f5, and the focal length of the 6th lens is f6, and | f3 | and | f4 | are all big
In | f1 |, | f5 | and | f6 |, distance of the first lens thing side surface to the 6th lens image side surface on optical axis is Td,
The maximum image height of imagery optical system is ImgH, and the abbe number of the 3rd lens is V3, the 4th lens
Abbe number is V4, and the radius of curvature on the 3rd lens image side surface is R6, the song on the 4th lens image side surface
Rate radius is R8, and the focal length of imagery optical system is f, and which meets following condition：
Td/ImgH<1.25；
1.5<V3/V4<4.0；And
(|R6|+|R8|)/f<10.0。
A kind of image-taking device is more provided according to the present invention, comprising imagery optical system as in the previous paragraph and
Electronics photo-sensitive cell, wherein electronics photo-sensitive cell are arranged at the imaging surface of imagery optical system.
A kind of electronic installation is provided separately according to the present invention, comprising image-taking device as in the previous paragraph.
When | f1 |, | f3 |, | f4 |, | f5 | and | f6 | meet above-mentioned condition, lens in imagery optical system can be made
Refracting power distribution it is more uniform, to slow down the problem of over-correction aberration.
When Td/ImgH meets above-mentioned condition, the miniaturization of imagery optical system can be maintained, with big
The characteristics of short overall length is had concurrently under aperture and the configuration needs at big visual angle.
When V3/V4 meets above-mentioned condition, the 3rd lens and the 4th lens can be lifted for amendment aberration
Effect.
When (| R6 |+| R8 |)/f meets above-mentioned condition, the 3rd lens and the 4th lens integral face shape can be slowed down
Change, effectively reduces the generation of veiling glare, to have good image quality and manufacturing concurrently.
Description of the drawings
Fig. 1 illustrates a kind of schematic diagram of the image-taking device according to first embodiment of the invention；
Fig. 2 is sequentially spherical aberration, astigmatism and the distortion curve chart of first embodiment from left to right；
Fig. 3 illustrates a kind of schematic diagram of the image-taking device according to second embodiment of the invention；
Fig. 4 is sequentially spherical aberration, astigmatism and the distortion curve chart of second embodiment from left to right；
Fig. 5 illustrates a kind of schematic diagram of the image-taking device according to third embodiment of the invention；
Fig. 6 is sequentially spherical aberration, astigmatism and the distortion curve chart of 3rd embodiment from left to right；
Fig. 7 illustrates a kind of schematic diagram of the image-taking device according to fourth embodiment of the invention；
Fig. 8 is sequentially spherical aberration, astigmatism and the distortion curve chart of fourth embodiment from left to right；
Fig. 9 illustrates a kind of schematic diagram of the image-taking device according to fifth embodiment of the invention；
Figure 10 is sequentially spherical aberration, astigmatism and the distortion curve chart of the 5th embodiment from left to right；
Figure 11 illustrates a kind of schematic diagram of the image-taking device according to sixth embodiment of the invention；
Figure 12 is sequentially spherical aberration, astigmatism and the distortion curve chart of sixth embodiment from left to right；
Figure 13 illustrates a kind of schematic diagram of the image-taking device according to seventh embodiment of the invention；
Figure 14 is sequentially spherical aberration, astigmatism and the distortion curve chart of the 7th embodiment from left to right；
Figure 15 illustrates a kind of schematic diagram of the image-taking device according to eighth embodiment of the invention；
Figure 16 is sequentially spherical aberration, astigmatism and the distortion curve chart of the 8th embodiment from left to right；
Figure 17 illustrates a kind of schematic diagram of the electronic installation according to ninth embodiment of the invention；
Figure 18 illustrates a kind of schematic diagram of the electronic installation according to tenth embodiment of the invention；And
Figure 19 illustrates a kind of schematic diagram of the electronic installation according to eleventh embodiment of the invention.
【Symbol description】
Electronic installation：10、20、30
Image-taking device：11、21、31
Aperture：100、200、300、400、500、600、700、800
Diaphragm：301、401、501、701
First lens：110、210、310、410、510、610、710、810
Thing side surface：111、211、311、411、511、611、711、811
Image side surface：112、212、312、412、512、612、712、812
Second lens：120、220、320、420、520、620、720、820
Thing side surface：121、221、321、421、521、621、721、821
Image side surface：122、222、322、422、522、622、722、822
3rd lens：130、230、330、430、530、630、730、830
Thing side surface：131、231、331、431、531、631、731、831
Image side surface：132、232、332、432、532、632、732、832
4th lens：140、240、340、440、540、640、740、840
Thing side surface：141、241、341、441、541、641、741、841
Image side surface：142、242、342、442、542、642、742、842
5th lens：150、250、350、450、550、650、750、850
Thing side surface：151、251、351、451、551、651、751、851
Image side surface：152、252、352、452、552、652、752、852
6th lens：160、260、360、460、560、660、760、860
Thing side surface：161、261、361、461、561、661、761、861
Image side surface：162、262、362、462、562、662、762、862
Infrared ray filters filter element：170、270、370、470、570、670、770、870
Imaging surface：180、280、380、480、580、680、780、880
Electronics photo-sensitive cell：190、290、390、490、590、690、790、890
f：The focal length of imagery optical system
Fno：The f-number of imagery optical system
HFOV：The half at maximum visual angle in imagery optical system
V3：The abbe number of the 3rd lens
V4：The abbe number of the 4th lens
CT3：Thickness of 3rd lens on optical axis
CT4：Thickness of 4th lens on optical axis
CT5：Thickness of 5th lens on optical axis
T34：The spacing distance of 3rd lens and the 4th lens on optical axis
ImgH：The maximum image height of imagery optical system
EPD：The entrance pupil diameter of imagery optical system
Td：Distance of the first lens thing side surface to the 6th lens image side surface on optical axis
R6：The radius of curvature of the 3rd lens image side surface
R8：The radius of curvature of the 4th lens image side surface
R9：The radius of curvature of the 5th lens thing side surface
R10：The radius of curvature of the 5th lens image side surface
f1：The focal length of the first lens
f3：The focal length of the 3rd lens
f4：The focal length of the 4th lens
f5：The focal length of the 5th lens
f6：The focal length of the 6th lens
Specific embodiment
A kind of imagery optical system, by thing side to image side sequentially comprising the first lens, the second lens, the 3rd
Lens, the 4th lens, the 5th lens and the 6th lens, the wherein lens of imagery optical system are six.
First lens of imagery optical system described in leading portion, the second lens, the 3rd lens, the 4th lens,
In 5th lens and the 6th lens, all there is between wantonly two adjacent lens a air gap；That is,
Imagery optical system has the lens of six single non-bondings.Due to the more non-bonding of the processing procedure for binding lens thoroughly
Mirror is complicated, and especially the bond area in two lens need to possess the curved surface of high accuracy, when binding to reach two lens
High adaptation, and during bonding, it is also possible to because off normal causes adaptation not good, affect overall
Optical imagery quality.Therefore, in imagery optical system of the present invention, between wantonly two adjacent lens, all have one
The air gap, the problem that can be effectively improved produced by bonding lens.
First lens have positive refracting power, are convex surface at its thing side surface dipped beam axle, so as to appropriate adjustment first
The positive flexion force intensity of lens, contributes to shortening the total length of imagery optical system.
Second lens can have negative refracting power, so as to the aberration of effectively amendment imagery optical system.
It is concave surface at 3rd lens image side surface dipped beam axle, so as to the picture of effectively amendment imagery optical system
Difference, and the change of the 3rd lens integral face shape can be slowed down, the generation of veiling glare is effectively reduced, it is good to have concurrently
Image quality and manufacturing.
Can be convex surface at 4th lens thing side surface dipped beam axle, be concave surface at the dipped beam axle of image side surface, so as to adding
Strong astigmatism amendment, and the change of the 4th lens integral face shape can be slowed down, the generation of veiling glare is effectively reduced, with
Have good image quality and manufacturing concurrently.In addition, the off-axis place of the 4th lens thing side surface and image side surface from
An at least point of inflexion can be all included at axle, so as to effective modified off-axis visual field aberration lifting the imaging of periphery
Quality.
5th lens have positive refracting power, it is possible to provide the main aggregate capabilities of imagery optical system, are conducive to contracting
Short its total length.
6th lens have negative refracting power, can be concave surface at its thing side surface dipped beam axle, its image side surface dipped beam
It is concave surface at axle, and the off-axis place in image side surface can makes the principal point of imagery optical system comprising an at least convex surface
(Principal Point) is conducive to shortening its back focal length to maintain miniaturization, and effectively can repair away from imaging surface
The aberration of just off-axis visual field.
The focal length of the first lens is f1, and the focal length of the 3rd lens is f3, and the focal length of the 4th lens is f4, the
The focal length of five lens is f5, and the focal length of the 6th lens is f6, and | f3 | and | f4 | are all more than | f1 |, | f5 | and | f6 |.
Whereby, the refracting power of lens in imagery optical system can be made to be distributed more uniformly, to slow down over-correction picture
Poor problem.It is preferred that | f1 | can be more than | f5 | and | f6 |.
Distance of the first lens thing side surface to the 6th lens image side surface on optical axis is Td, and imaging uses up
The maximum image height of system is ImgH, and which meets following condition：Td/ImgH<1.25.Whereby, can tie up
The miniaturization of imagery optical system is held, to have short overall length under the configuration needs at large aperture with big visual angle concurrently
Feature.It is preferred that following condition can be met：Td/ImgH<1.15.
The abbe number of the 3rd lens is V3, and the abbe number of the 4th lens is V4, and which meets following condition：
1.5<V3/V4<4.0.Whereby, the 3rd lens and the 4th lens can be lifted for effect of amendment aberration.
The radius of curvature of the 3rd lens image side surface is R6, and the radius of curvature on the 4th lens image side surface is R8,
The focal length of imagery optical system is f, and which meets following condition：(|R6|+|R8|)/f<10.0.Whereby, may be used
Slow down the change of the 3rd lens and the 4th lens integral face shape, effectively reduce the generation of veiling glare, it is good to have concurrently
Good image quality and manufacturing.It is preferred that following condition can be met：(|R6|+|R8|)/f<5.0.
The focal length of imagery optical system is f, and the focal length of the 3rd lens is f3, and the focal length of the 4th lens is f4,
Which meets following condition：|f/f3|+|f/f4|<0.50.Whereby, the 3rd lens and the 4th lens can effectively be reduced
Sensitivity, to improve manufacture qualification rate.
The maximum image height of imagery optical system be ImgH, the entrance pupil of imagery optical system
(Entrance Pupil) a diameter of EPD, which meets following condition：1.25<ImgH/EPD<1.75.Whereby,
The light-inletting quantity of imagery optical system can be effectively increased.
Thickness of 3rd lens on optical axis be CT3, thickness of the 4th lens on optical axis be CT4, the 5th
Thickness of the lens on optical axis is CT5, and which meets following condition：0.80<CT5/(CT3+CT4)<2.0.
Whereby, can effectively utilizes imagery optical system space, with avoid between lens too close to and cause assembling
On problem.
The f-number (f-number) of imagery optical system is Fno, and which meets following condition：1.5<Fno<
2.0.Whereby, the advantage of large aperture can be effectively played, still can clearly capture when light is inadequate.
The radius of curvature of the 5th lens thing side surface is R9, and the radius of curvature on the 5th lens image side surface is
R10, which meets following condition：0.25<(R9+R10)/(R9-R10)<2.0.Whereby, be conducive to slowing down
The face deformation of five lens, to reduce the formation of face reflection.
The focal length of imagery optical system is f, and the radius of curvature on the 3rd lens image side surface is R6, its satisfaction
Following condition：0.20<f/R6<1.50.Whereby, the face deformation of the 3rd lens can be slowed down, to reduce by
The manufacture sensitivity of three lens.It is preferred that following condition can be met：0.35<f/R6<1.20.
Thickness of 3rd lens on optical axis is CT3, and thickness of the 4th lens on optical axis is CT4, and which is full
Foot row condition：CT4/CT3<1.60.Whereby, the manufacture and assembling of lens are contributed to, to lift making
Qualification rate.
Thickness of 4th lens on optical axis be CT4, the spacer of the 3rd lens and the 4th lens on optical axis
From for T34, which meets following condition：0.75<CT4/T34<2.25.Whereby, the 3rd lens are conducive to
Enough spaces are obtained between the 4th lens and is adapted to the configuration of assembling, with desensitising.
In the imagery optical system that the present invention is provided, the material of lens can be plastic cement or glass.When lens
Material is plastic cement, can effectively reduce production cost.The another material for working as lens is glass, then can increase into
As the degree of freedom with the configuration of optical system refracting power.Additionally, the thing side surface and picture in imagery optical system
Side surface can be aspheric surface (ASP), and aspheric surface can easily be fabricated to the shape beyond sphere, obtain more
Controlled variable, to cut down aberration, and then reduce the number that lens are used, therefore can effectively reduce this
The total length of invention imagery optical system.
Furthermore, in the imagery optical system that the present invention is provided, if lens surface is convex surface and not define this convex
During the position of face, then it represents that the lens surface can be convex surface at dipped beam axle；If lens surface is concave surface and non-boundary
During the fixed concave surface position, then it represents that the lens surface can be concave surface at dipped beam axle.The imaging that the present invention is provided
With in optical system, if lens have positive refracting power or negative refracting power, or the focal length of lens, can all refer to
Refracting power or focal length at mirror dipped beam axle.
In addition, in imagery optical system of the present invention, an at least diaphragm can be set on demand, it is spuious to reduce
Light, contributes to lifting image quality.
The imaging surface of the imagery optical system of the present invention, according to the difference of its corresponding electronics photo-sensitive cell, can
For a plane or have the curved surface of arbitrary curvature, particularly relate to concave surface towards toward thing side to curved surface.
The present invention imagery optical system in, aperture configuration can be preposition aperture or in put aperture, wherein before
Put aperture and imply that aperture is arranged between object and the first lens, in put aperture and then represent that aperture is arranged at first
Between lens and imaging surface.If aperture is preposition aperture, the outgoing pupil and imaging surface of imagery optical system can be made
Produce longer distance so as to telecentricity (Telecentric) effect, and electronics photo-sensitive cell can be increased
CCD or CMOS receives the efficiency of image；If in put aperture, contribute to the angle of visual field of expansion system,
Make imagery optical system that there is the advantage of wide-angle lens.
The more visual demand of imagery optical system of the present invention is applied in the optical system of mobile focusing, and and
Has the characteristic of excellent lens error correction and good image quality.Also can many-side be applied to three-dimensional (3D) image and pick
Take, digital camera, mobile product, digital flat panel, intelligent television, network monitoring device, somatic sensation television game machine,
In the electronic installations such as drive recorder, reversing developing unit, robot and Wearable product.
The present invention separately provides a kind of image-taking device, comprising aforesaid imagery optical system and the photosensitive unit of electronics
Part, wherein electronics photo-sensitive cell are arranged at the imaging surface of imagery optical system.By the 3rd lens image side table
Face is all concave surface with the 4th lens image side surface, can slow down the change of the 3rd lens and the 4th lens integral face shape
Change, effectively reduce the generation of veiling glare, to have good image quality and manufacturing concurrently.Furthermore, can also tie up
The miniaturization of imagery optical system is held, to have short overall length under the configuration needs at large aperture with big visual angle concurrently
Feature.It is preferred that image-taking device can further include lens barrel, support device (Holder Member) or its group
Close.
The present invention provides a kind of electronic installation, comprising aforesaid image-taking device.Whereby, can large aperture with it is big
The characteristics of short overall length is had concurrently under the configuration needs at visual angle.It is preferred that electronic installation can further include control list
Unit, display unit, storage element, random access memory (RAM) or its combination.
According to above-mentioned embodiment, specific embodiment set forth below simultaneously coordinates accompanying drawing to be described in detail.
<First embodiment>
Fig. 1 and Fig. 2 is refer to, wherein Fig. 1 illustrates a kind of image-taking device according to first embodiment of the invention
Schematic diagram, Fig. 2 is sequentially the spherical aberration of first embodiment, astigmatism from left to right and distorts curve chart.By scheming
1 understands, the image-taking device of first embodiment is photosensitive comprising imagery optical system (not another label) and electronics
Element 190.Imagery optical system by thing side to image side sequentially comprising the first lens 110, aperture 100,
Second lens 120, the 3rd lens 130, the 4th lens 140, the 5th lens 150, the 6th lens 160,
Infrared ray filters filter element (IR-cut filter) 170 and imaging surface 180, and electronics photo-sensitive cell 190 sets
The imaging surface 180 of imagery optical system is placed in, the wherein lens of imagery optical system are six
(110-160) there is between wantonly two adjacent lens a air gap,.
First lens 110 have positive refracting power, and are plastic cement material, at its 111 dipped beam axle of thing side surface are
Convex surface, is convex surface at its 112 dipped beam axle of image side surface, and is all aspheric surface.
Second lens 120 have negative refracting power, and are plastic cement material, at its 121 dipped beam axle of thing side surface are
Plane, is concave surface at its 122 dipped beam axle of image side surface, and is all aspheric surface.
3rd lens 130 have positive refracting power, and are plastic cement material, at its 131 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 132 dipped beam axle of image side surface, and is all aspheric surface.
4th lens 140 have negative refracting power, and are plastic cement material, at its 141 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 142 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 4th lens thing side
141 off-axis place of surface and 142 off-axis place of image side surface all include an at least point of inflexion.
5th lens 150 have positive refracting power, and are plastic cement material, at its 151 dipped beam axle of thing side surface are
Convex surface, is convex surface at its 152 dipped beam axle of image side surface, and is all aspheric surface.
6th lens 160 have negative refracting power, and are plastic cement material, at its 161 dipped beam axle of thing side surface are
Concave surface, is concave surface at its 162 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 6th lens image side
162 off-axis place of surface is comprising an at least convex surface.
It is glass material that infrared ray filters filter element 170, and which is arranged at the 6th lens 160 and imaging surface
The focal length of imagery optical system is affected between 180 and not.
The aspheric fitting equation of above-mentioned each lens is expressed as follows：
Wherein：
X：In aspheric surface apart from optical axis for Y point, itself and the phase for being tangential on intersection point tangent plane on aspheric surface optical axis
Adjust the distance；
Y：The vertical dimension of point and optical axis in aspheric curve；
R：Radius of curvature；
k：Conical surface coefficient；And
Ai：I-th rank asphericity coefficients.
In the imagery optical system of first embodiment, the focal length of imagery optical system is f, and imaging is used up
The f-number of system is Fno, and in imagery optical system, the half at maximum visual angle is HFOV, its numerical value
It is as follows：F=4.08mm；Fno=2.13；And HFOV=38.0 degree.
In the imagery optical system of first embodiment, the abbe number of the 3rd lens 130 is V3, the 4th
The abbe number of lens 140 is V4, and which meets following condition：V3/V4=2.37.
In the imagery optical system of first embodiment, thickness of the 3rd lens 130 on optical axis is CT3,
Thickness of 4th lens 140 on optical axis is CT4, and which meets following condition：CT4/CT3=0.71.
In the imagery optical system of first embodiment, thickness of the 3rd lens 130 on optical axis is CT3,
Thickness of 4th lens 140 on optical axis is CT4, and thickness of the 5th lens 150 on optical axis is CT5,
Which meets following condition：CT5/ (CT3+CT4)=1.11.
In the imagery optical system of first embodiment, thickness of the 4th lens 140 on optical axis is CT4,
The spacing distance of 3rd lens 130 and the 4th lens 140 on optical axis is T34, and which meets following condition：
CT4/T34=1.42.
In the imagery optical system of first embodiment, the maximum image height of imagery optical system is ImgH,
The a diameter of EPD of entrance pupil of imagery optical system, which meets following condition：ImgH/EPD=1.70.
In the imagery optical system of first embodiment, 111 to the 6th lens image side of the first lens thing side surface
Distance of the surface 162 on optical axis is Td, and the maximum image height of imagery optical system is ImgH, its satisfaction
Following condition：Td/ImgH=1.17.
In the imagery optical system of first embodiment, the radius of curvature on the 3rd lens image side surface 132 is
R6, the radius of curvature on the 4th lens image side surface 142 is R8, and the focal length of imagery optical system is f,
Which meets following condition：(| R6 |+| R8 |)/f=3.36.
In the imagery optical system of first embodiment, the radius of curvature of the 5th lens thing side surface 151 is
R9, the radius of curvature on the 5th lens image side surface 152 is R10, and which meets following condition：
(R9+R10)/(R9-R10)=0.74.
In the imagery optical system of first embodiment, the focal length of imagery optical system is f, the 3rd lens
The radius of curvature on image side surface 132 is R6, and which meets following condition：F/R6=0.38.
In the imagery optical system of first embodiment, the focal length of imagery optical system is f, the 3rd lens
130 focal length is f3, and the focal length of the 4th lens 140 is f4, and which meets following condition：| f/f3 |+| f/f4 |=0.21.
In the imagery optical system of first embodiment, the focal length of the first lens 110 is f1, the 3rd lens
130 focal length is f3, and the focal length of the 4th lens 140 is f4, and the focal length of the 5th lens 150 is f5, the 6th
The focal length of lens 160 is f6, wherein | f3 | and | f4 | are all more than | f1 |, | f5 | and | f6 |, and | f1 | is more than | f5 | and | f6 |.
Following table one, | f3 |=60.51, | f4 |=29.59, | f1 |=2.92, | f5 |=2.76, | f6 |=2.19 are referred to (.)
Coordinate with reference to following table one and table two again.
Table one is the detailed structured data of Fig. 1 first embodiments, the wherein list of radius of curvature, thickness and focal length
Position is mm, and surface 0-16 sequentially represented by the surface of thing side to image side.During table two is first embodiment
Aspherical surface data, wherein, the conical surface coefficient in k table aspheric curve equations, A4-A16 are then represented
Each surface 4-16 rank asphericity coefficients.Additionally, following embodiment form is showing for each embodiment of correspondence
It is intended to and aberration curve figure, definition phase of the definition of data all with the table one and table two of first embodiment in form
Together, here is not added with repeating.
<Second embodiment>
Fig. 3 and Fig. 4 is refer to, wherein Fig. 3 illustrates a kind of image-taking device according to second embodiment of the invention
Schematic diagram, Fig. 4 is sequentially the spherical aberration of second embodiment, astigmatism from left to right and distorts curve chart.By scheming
3 understand, the image-taking device of second embodiment is photosensitive comprising imagery optical system (not another label) and electronics
Element 290.Imagery optical system by thing side to image side sequentially comprising aperture 200, the first lens 210,
Second lens 220, the 3rd lens 230, the 4th lens 240, the 5th lens 250, the 6th lens 260,
Infrared ray filters filter element 270 and imaging surface 280, and electronics photo-sensitive cell 290 is arranged at imaging and uses
The imaging surface 280 of optical system, the wherein lens of imagery optical system are six (210-260), appoint two-phase
There is between adjacent lens a air gap.
First lens 210 have positive refracting power, and are plastic cement material, at its 211 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 212 dipped beam axle of image side surface, and is all aspheric surface.
Second lens 220 have negative refracting power, and are plastic cement material, at its 221 dipped beam axle of thing side surface are
Concave surface, is concave surface at its 222 dipped beam axle of image side surface, and is all aspheric surface.
3rd lens 230 have positive refracting power, and are plastic cement material, at its 231 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 232 dipped beam axle of image side surface, and is all aspheric surface.
4th lens 240 have positive refracting power, and are plastic cement material, at its 241 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 242 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 4th lens thing side
241 off-axis place of surface and 242 off-axis place of image side surface all include an at least point of inflexion.
5th lens 250 have positive refracting power, and are plastic cement material, at its 251 dipped beam axle of thing side surface are
Convex surface, is convex surface at its 252 dipped beam axle of image side surface, and is all aspheric surface.
6th lens 260 have negative refracting power, and are plastic cement material, at its 261 dipped beam axle of thing side surface are
Concave surface, is concave surface at its 262 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 6th lens image side
262 off-axis place of surface is comprising an at least convex surface.
It is glass material that infrared ray filters filter element 270, and which is arranged at the 6th lens 260 and imaging surface
The focal length of imagery optical system is affected between 280 and not.
In addition, in the imagery optical system of second embodiment, the focal length of the first lens 210 is f1, the 3rd
The focal length of lens 230 is f3, and the focal length of the 4th lens 240 is f4, and the focal length of the 5th lens 250 is f5,
The focal length of the 6th lens 260 is f6, wherein | f3 | and | f4 | are all more than | f1 |, | f5 | and | f6 |, and | f1 | be more than | f5 | and
|f6|。
Coordinate with reference to following table three and table four.
In second embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, under
The definition of table parameter is all identical with first embodiment, and not in this to go forth.
Cooperation table three and table four can extrapolate following data:
<3rd embodiment>
Fig. 5 and Fig. 6 is refer to, wherein Fig. 5 illustrates a kind of image-taking device according to third embodiment of the invention
Schematic diagram, Fig. 6 is sequentially the spherical aberration of 3rd embodiment, astigmatism from left to right and distorts curve chart.By scheming
5 understand, the image-taking device of 3rd embodiment is photosensitive comprising imagery optical system (not another label) and electronics
Element 390.Imagery optical system by thing side to image side sequentially comprising aperture 300, the first lens 310,
Second lens 320, diaphragm 301, the 3rd lens 330, the 4th lens 340, the 5th lens the 350, the 6th
Lens 360, infrared ray filter filter element 370 and imaging surface 380, and electronics photo-sensitive cell 390 sets
The imaging surface 380 of imagery optical system is placed in, the wherein lens of imagery optical system are six
(310-360) there is between wantonly two adjacent lens a air gap,.
First lens 310 have positive refracting power, and are plastic cement material, at its 311 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 312 dipped beam axle of image side surface, and is all aspheric surface.
Second lens 320 have negative refracting power, and are plastic cement material, at its 321 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 322 dipped beam axle of image side surface, and is all aspheric surface.
3rd lens 330 have positive refracting power, and are plastic cement material, at its 331 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 332 dipped beam axle of image side surface, and is all aspheric surface.
4th lens 340 have negative refracting power, and are plastic cement material, at its 341 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 342 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 4th lens thing side
341 off-axis place of surface and 342 off-axis place of image side surface all include an at least point of inflexion.
5th lens 350 have positive refracting power, and are plastic cement material, are convex at its 351 dipped beam axle of thing side table
Face, is convex surface at its 352 dipped beam axle of image side surface, and is all aspheric surface.
6th lens 360 have negative refracting power, and are plastic cement material, at its 361 dipped beam axle of thing side surface are
Concave surface, is concave surface at its 362 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 6th lens image side
362 off-axis place of surface is comprising an at least convex surface.
It is glass material that infrared ray filters filter element 370, and which is arranged at the 6th lens 360 and imaging surface
The focal length of imagery optical system is affected between 380 and not.
In addition, in the imagery optical system of 3rd embodiment, the focal length of the first lens 310 is f1, the 3rd
The focal length of lens 330 is f3, and the focal length of the 4th lens 340 is f4, and the focal length of the 5th lens 350 is f5,
The focal length of the 6th lens 360 is f6, wherein | f3 | and | f4 | are all more than | f1 |, | f5 | and | f6 |, and | f1 | be more than | f5 | and
|f6|。
Coordinate with reference to following table five and table six.
In 3rd embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, under
The definition of table parameter is all identical with first embodiment, and not in this to go forth.
Cooperation table five and table six can extrapolate following data:
<Fourth embodiment>
Fig. 7 and Fig. 8 is refer to, wherein Fig. 7 illustrates a kind of image-taking device according to fourth embodiment of the invention
Schematic diagram, Fig. 8 is sequentially the spherical aberration of fourth embodiment, astigmatism from left to right and distorts curve chart.By scheming
7 understand, the image-taking device of fourth embodiment is photosensitive comprising imagery optical system (not another label) and electronics
Element 490.Imagery optical system by thing side to image side sequentially comprising aperture 400, the first lens 410,
Diaphragm 401, the second lens 420, the 3rd lens 430, the 4th lens 440, the 5th lens the 450, the 6th
Lens 460, infrared ray filter filter element 470 and imaging surface 480, and electronics photo-sensitive cell 490 sets
The imaging surface 480 of imagery optical system is placed in, the wherein lens of imagery optical system are six
(410-460) there is between wantonly two adjacent lens a air gap,.
First lens 410 have positive refracting power, and are plastic cement material, at its 411 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 412 dipped beam axle of image side surface, and is all aspheric surface.
Second lens 420 have negative refracting power, and are plastic cement material, at its 421 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 422 dipped beam axle of image side surface, and is all aspheric surface.
3rd lens 430 have positive refracting power, and are plastic cement material, at its 431 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 432 dipped beam axle of image side surface, and is all aspheric surface.
4th lens 440 have negative refracting power, and are plastic cement material, at its 441 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 442 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 4th lens thing side
441 off-axis place of surface and 442 off-axis place of image side surface all include an at least point of inflexion.
5th lens 450 have positive refracting power, and are plastic cement material, at its 451 dipped beam axle of thing side surface are
Concave surface, is convex surface at its 452 dipped beam axle of image side surface, and is all aspheric surface.
6th lens 460 have negative refracting power, and are plastic cement material, at its 461 dipped beam axle of thing side surface are
Concave surface, is concave surface at its 462 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 6th lens image side
462 off-axis place of surface is comprising an at least convex surface.
It is glass material that infrared ray filters filter element 470, and which is arranged at the 6th lens 460 and imaging surface
The focal length of imagery optical system is affected between 480 and not.
In addition, in the imagery optical system of fourth embodiment, the focal length of the first lens 410 is f1, the 3rd
The focal length of lens 430 is f3, and the focal length of the 4th lens 440 is f4, and the focal length of the 5th lens 450 is f5,
The focal length of the 6th lens 460 is f6, wherein | f3 | and | f4 | are all more than | f1 |, | f5 | and | f6 |, and | f1 | be more than | f5 | and
|f6|。
Coordinate with reference to following table seven and table eight.
In fourth embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, under
The definition of table parameter is all identical with first embodiment, and not in this to go forth.
Cooperation table seven and table eight can extrapolate following data:
<5th embodiment>
Fig. 9 and Figure 10 is refer to, wherein Fig. 9 illustrates a kind of capture dress according to fifth embodiment of the invention
The schematic diagram put, Figure 10 are sequentially spherical aberration, astigmatism and the distortion curve chart of the 5th embodiment from left to right.
As shown in Figure 9, the image-taking device of the 5th embodiment includes imagery optical system (not another label) and electronics
Photo-sensitive cell 590.Imagery optical system by thing side to image side sequentially comprising aperture 500, the first lens 510,
Second lens 520, diaphragm 501, the 3rd lens 530, the 4th lens 540, the 5th lens the 550, the 6th
Lens 560, infrared ray filter filter element 570 and imaging surface 580, and electronics photo-sensitive cell 590 sets
The imaging surface 580 of imagery optical system is placed in, the wherein lens of imagery optical system are six
(510-560) there is between wantonly two adjacent lens a air gap,.
First lens 510 have positive refracting power, and are plastic cement material, at its 511 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 512 dipped beam axle of image side surface, and is all aspheric surface.
Second lens 520 have negative refracting power, and are plastic cement material, at its 521 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 522 dipped beam axle of image side surface, and is all aspheric surface.
3rd lens 530 have positive refracting power, and are plastic cement material, at its 531 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 532 dipped beam axle of image side surface, and is all aspheric surface.
4th lens 540 have negative refracting power, and are plastic cement material, at its 541 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 542 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 4th lens thing side
541 off-axis place of surface and 542 off-axis place of image side surface all include an at least point of inflexion.
5th lens 550 have positive refracting power, and are plastic cement material, at its 551 dipped beam axle of thing side surface are
Convex surface, is convex surface at its 552 dipped beam axle of image side surface, and is all aspheric surface.
6th lens 560 have negative refracting power, and are plastic cement material, at its 561 dipped beam axle of thing side surface are
Concave surface, is concave surface at its 562 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 6th lens image side
562 off-axis place of surface is comprising an at least convex surface.
It is glass material that infrared ray filters filter element 570, and which is arranged at the 6th lens 560 and imaging surface
The focal length of imagery optical system is affected between 580 and not.
In addition, in the imagery optical system of the 5th embodiment, the focal length of the first lens 510 is f1, the 3rd
The focal length of lens 530 is f3, and the focal length of the 4th lens 540 is f4, and the focal length of the 5th lens 550 is f5,
The focal length of the 6th lens 560 is f6, wherein | f3 | and | f4 | are all more than | f1 |, | f5 | and | f6 |, and | f1 | be more than | f5 | and
|f6|。
Coordinate with reference to following table nine and table ten.
In 5th embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, under
The definition of table parameter is all identical with first embodiment, and not in this to go forth.
Cooperation table nine and table ten can extrapolate following data:
<Sixth embodiment>
Figure 11 and Figure 12 is refer to, wherein Figure 11 illustrates a kind of capture according to sixth embodiment of the invention
The schematic diagram of device, Figure 12 are sequentially spherical aberration, astigmatism and the distortion curve chart of sixth embodiment from left to right.
As shown in Figure 11, the image-taking device of sixth embodiment includes imagery optical system (not another label) and electricity
Sub- photo-sensitive cell 690.Imagery optical system sequentially includes aperture 600, the first lens by thing side to image side
610th, the second lens 620, the 3rd lens 630, the 4th lens 640, the 5th lens 650, the 6th lens
660th, infrared ray filters filter element 670 and imaging surface 680, and electronics photo-sensitive cell 690 is arranged at
The imaging surface 680 of imagery optical system, the wherein lens of imagery optical system are six (610-660),
There is between wantonly two adjacent lens a air gap.
First lens 610 have positive refracting power, and are plastic cement material, at its 611 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 612 dipped beam axle of image side surface, and is all aspheric surface.
Second lens 620 have negative refracting power, and are plastic cement material, at its 621 dipped beam axle of thing side surface are
Concave surface, is concave surface at its 622 dipped beam axle of image side surface, and is all aspheric surface.
3rd lens 630 have positive refracting power, and are plastic cement material, at its 631 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 632 dipped beam axle of image side surface, and is all aspheric surface.
4th lens 640 have negative refracting power, and are plastic cement material, at its 641 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 642 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 4th lens thing side
641 off-axis place of surface and 642 off-axis place of image side surface all include an at least point of inflexion.
5th lens 650 have positive refracting power, and are plastic cement material, at its 651 dipped beam axle of thing side surface are
Convex surface, is convex surface at its 652 dipped beam axle of image side surface, and is all aspheric surface.
6th lens 660 have negative refracting power, and are plastic cement material, at its 661 dipped beam axle of thing side surface are
Concave surface, is concave surface at its 662 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 6th lens image side
662 off-axis place of surface is comprising an at least convex surface.
It is glass material that infrared ray filters filter element 670, and which is arranged at the 6th lens 660 and imaging surface
The focal length of imagery optical system is affected between 680 and not.
In addition, in the imagery optical system of sixth embodiment, the focal length of the first lens 610 is f1, the 3rd
The focal length of lens 630 is f3, and the focal length of the 4th lens 640 is f4, and the focal length of the 5th lens 650 is f5,
The focal length of the 6th lens 660 is f6, wherein | f3 | and | f4 | are all more than | f1 |, | f5 | and | f6 |, and | f1 | be more than | f5 | and
|f6|。
Coordinate with reference to following table 11 and table 12.
In sixth embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, under
The definition of table parameter is all identical with first embodiment, and not in this to go forth.
Cooperation table 11 and table 12 can extrapolate following data:
<7th embodiment>
Figure 13 and Figure 14 is refer to, wherein Figure 13 illustrates a kind of capture according to seventh embodiment of the invention
The schematic diagram of device, Figure 14 are sequentially spherical aberration, astigmatism and the distortion curve chart of the 7th embodiment from left to right.
As shown in Figure 13, the image-taking device of the 7th embodiment includes imagery optical system (not another label) and electricity
Sub- photo-sensitive cell 790.Imagery optical system sequentially includes aperture 700, the first lens by thing side to image side
710th, diaphragm 701, the second lens 720, the 3rd lens 730, the 4th lens 740, the 5th lens 750,
6th lens 760, infrared ray filter filter element 770 and imaging surface 780, and electronics photo-sensitive cell 790
The imaging surface 780 of imagery optical system is arranged at, the wherein lens of imagery optical system are six
(710-760) there is between wantonly two adjacent lens a air gap,.
First lens 710 have positive refracting power, and are plastic cement material, at its 711 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 712 dipped beam axle of image side surface, and is all aspheric surface.
Second lens 720 have negative refracting power, and are plastic cement material, at its 721 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 722 dipped beam axle of image side surface, and is all aspheric surface.
3rd lens 730 have positive refracting power, and are plastic cement material, at its 731 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 732 dipped beam axle of image side surface, and is all aspheric surface.
4th lens 740 have positive refracting power, and are plastic cement material, at its 741 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 742 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 4th lens thing side
741 off-axis place of surface and 742 off-axis place of image side surface all include an at least point of inflexion.
5th lens 750 have positive refracting power, and are plastic cement material, at its 751 dipped beam axle of thing side surface are
Concave surface, is convex surface at its 752 dipped beam axle of image side surface, and is all aspheric surface.
6th lens 760 have negative refracting power, and are plastic cement material, at its 761 dipped beam axle of thing side surface are
Concave surface, is concave surface at its 762 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 6th lens image side
762 off-axis place of surface is comprising an at least convex surface.
It is glass material that infrared ray filters filter element 770, and which is arranged at the 6th lens 760 and imaging surface
The focal length of imagery optical system is affected between 780 and not.
In addition, in the imagery optical system of the 7th embodiment, the focal length of the first lens 710 is f1, the 3rd
The focal length of lens 730 is f3, and the focal length of the 4th lens 740 is f4, and the focal length of the 5th lens 750 is f5,
The focal length of the 6th lens 760 is f6, wherein | f3 | and | f4 | are all more than | f1 |, | f5 | and | f6 |, and | f1 | be more than | f5 | and
|f6|。
Coordinate with reference to following table 13 and table 14.
In 7th embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, under
The definition of table parameter is all identical with first embodiment, and not in this to go forth.
Cooperation table 13 and table 14 can extrapolate following data:
<8th embodiment>
Figure 15 and Figure 16 is refer to, wherein Figure 15 illustrates a kind of capture according to eighth embodiment of the invention
The schematic diagram of device, Figure 16 are sequentially spherical aberration, astigmatism and the distortion curve chart of the 8th embodiment from left to right.
As shown in Figure 15, the image-taking device of the 8th embodiment includes imagery optical system (not another label) and electricity
Sub- photo-sensitive cell 890.Imagery optical system sequentially includes aperture 800, the first lens by thing side to image side
810th, the second lens 820, the 3rd lens 830, the 4th lens 840, the 5th lens 850, the 6th lens
860th, infrared ray filters filter element 870 and imaging surface 880, and electronics photo-sensitive cell 890 is arranged at
The imaging surface 880 of imagery optical system, the wherein lens of imagery optical system are six (810-860),
There is between wantonly two adjacent lens a air gap.
First lens 810 have positive refracting power, and are glass material, at its 811 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 812 dipped beam axle of image side surface, and is all aspheric surface.
Second lens 820 have negative refracting power, and are plastic cement material, at its 821 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 822 dipped beam axle of image side surface, and is all aspheric surface.
3rd lens 830 have negative refracting power, and are plastic cement material, at its 831 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 832 dipped beam axle of image side surface, and is all aspheric surface.
4th lens 840 have negative refracting power, and are plastic cement material, at its 841 dipped beam axle of thing side surface are
Convex surface, is concave surface at its 842 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 4th lens thing side
841 off-axis place of surface and 842 off-axis place of image side surface all include an at least point of inflexion.
5th lens 850 have positive refracting power, and are plastic cement material, at its 851 dipped beam axle of thing side surface are
Convex surface, is convex surface at its 852 dipped beam axle of image side surface, and is all aspheric surface.
6th lens 860 have negative refracting power, and are plastic cement material, at its 861 dipped beam axle of thing side surface are
Concave surface, is concave surface at its 862 dipped beam axle of image side surface, and is all aspheric surface.In addition, the 6th lens image side
862 off-axis place of surface is comprising an at least convex surface.
It is glass material that infrared ray filters filter element 870, and which is arranged at the 6th lens 860 and imaging surface
The focal length of imagery optical system is affected between 880 and not.
In addition, in the imagery optical system of the 8th embodiment, the focal length of the first lens 810 is f1, the 3rd
The focal length of lens 830 is f3, and the focal length of the 4th lens 840 is f4, and the focal length of the 5th lens 850 is f5,
The focal length of the 6th lens 860 is f6, wherein | f3 | and | f4 | are all more than | f1 |, | f5 | and | f6 |, and | f1 | be more than | f5 | and
|f6|。
Coordinate with reference to following table 15 and table 16.
In 8th embodiment, aspheric fitting equation represents the form such as first embodiment.Additionally, under
The definition of table parameter is all identical with first embodiment, and not in this to go forth.
Cooperation table 15 and table 16 can extrapolate following data:
<9th embodiment>
Figure 17 is refer to, is the schematic diagram for illustrating a kind of electronic installation 10 according to ninth embodiment of the invention.
The electronic installation 10 of the 9th embodiment is a smart mobile phone, and electronic installation 10 includes image-taking device 11, takes
As device 11 is comprising the imagery optical system (figure is not disclosed) and electronics photo-sensitive cell according to the present invention
(figure is not disclosed), wherein electronics photo-sensitive cell is arranged at the imaging surface of imagery optical system.
<Tenth embodiment>
Figure 18 is refer to, is the schematic diagram for illustrating a kind of electronic installation 20 according to tenth embodiment of the invention.
The electronic installation 20 of the tenth embodiment is a panel computer, and electronic installation 20 includes image-taking device 21, takes
As device 21 is comprising the imagery optical system (figure is not disclosed) and electronics photo-sensitive cell according to the present invention
(figure is not disclosed), wherein electronics photo-sensitive cell is arranged at the imaging surface of imagery optical system.
<11st embodiment>
Figure 19 is refer to, is the signal for illustrating a kind of electronic installation 30 according to eleventh embodiment of the invention
Figure.The electronic installation 30 of the 11st embodiment be a head mounted display (Head-mounted display,
HMD), electronic installation 30 includes image-taking device 31, and image-taking device 31 includes the imaging according to the present invention
With optical system (figure is not disclosed) and electronics photo-sensitive cell (figure is not disclosed), wherein electronics photo-sensitive cell
It is arranged at the imaging surface of imagery optical system.
Although the present invention is disclosed above with embodiment, so which is not limited to the present invention, any to be familiar with
This those skilled in the art, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations, therefore
Protection scope of the present invention ought be defined depending on the scope of which is defined in the appended claims.
Claims (18)
1. a kind of imagery optical system, it is characterised in that sequentially included to image side by thing side：
One first lens, with positive refracting power, are convex surface at its thing side surface dipped beam axle；
One second lens；
One the 3rd lens, are concave surface at its image side surface dipped beam axle；
One the 4th lens, are concave surface at its image side surface dipped beam axle；
One the 5th lens, with positive refracting power；And
One the 6th lens, with negative refracting power, at its image side surface dipped beam axle be concave surface, its image side surface from
An at least convex surface is included at axle, and its thing side surface and image side surface are all aspheric surface；
Wherein, the lens of the imagery optical system are six, are had between an air between wantonly two adjacent lens
Gap, the focal length of first lens is f1, and the focal length of the 3rd lens is f3, and the focal length of the 4th lens is
F4, the focal length of the 5th lens is f5, and the focal length of the 6th lens is f6, and | f3 | and | f4 | be all more than | f1 |,
| f5 | and | f6 |, distance of the first lens thing side surface to the 6th lens image side surface on optical axis are Td,
The maximum image height of the imagery optical system is ImgH, and the abbe number of the 3rd lens is V3, the 4th
The abbe number of lens is V4, and the radius of curvature on the 3rd lens image side surface is R6, the 4th lens picture
The radius of curvature of side surface is R8, and the focal length of the imagery optical system is f, and which meets following condition：
Td/ImgH<1.25；
1.5<V3/V4<4.0；And
(|R6|+|R8|)/f<10.0。
2. imagery optical system according to claim 1, it is characterised in that the first lens thing
Distance of the side surface to the 6th lens image side surface on optical axis is Td, and the imagery optical system is most
Big image height is ImgH, and which meets following condition：
Td/ImgH<1.15。
3. imagery optical system according to claim 2, it is characterised in that the imagery optical
The focal length of system is f, and the focal length of the 3rd lens is f3, and the focal length of the 4th lens is f4, under its satisfaction
Row condition：
|f/f3|+|f/f4|<0.50。
4. imagery optical system according to claim 2, wherein the 6th lens thing side surface are near
It is concave surface at optical axis.
5. imagery optical system according to claim 2, it is characterised in that second lens have
There is negative refracting power.
6. imagery optical system according to claim 1, it is characterised in that the imagery optical
The maximum image height of system is ImgH, a diameter of EPD of entrance pupil of the imagery optical system, under its satisfaction
Row condition：
1.25<ImgH/EPD<1.75。
7. imagery optical system according to claim 1, it is characterised in that the 3rd lens in
Thickness on optical axis is CT3, and thickness of the 4th lens on optical axis is CT4, and the 5th lens are in optical axis
On thickness be CT5, which meets following condition：
0.80<CT5/(CT3+CT4)<2.0。
8. imagery optical system according to claim 1, it is characterised in that the 4th lens thing
It is convex surface at side surface dipped beam axle, and the off-axis place of the 4th lens thing side surface and image side surface is located all to wrap off axis
Containing an at least point of inflexion.
9. imagery optical system according to claim 1, it is characterised in that the 3rd lens picture
The radius of curvature of side surface is R6, and the radius of curvature on the 4th lens image side surface is R8, and the imaging is used up
The focal length of system is f, and which meets following condition：
(|R6|+|R8|)/f<5.0。
10. imagery optical system according to claim 9, it is characterised in that the imagery optical
The f-number of system is Fno, and which meets following condition：
1.5<Fno<2.0。
11. imagery optical system according to claim 9, it is characterised in that the 5th lens thing
The radius of curvature of side surface is R9, and the radius of curvature on the 5th lens image side surface is R10, under its satisfaction
Row condition：
0.25<(R9+R10)/(R9-R10)<2.0。
12. imagery optical systems according to claim 1, it is characterised in that the imagery optical
The focal length of system is f, and the radius of curvature on the 3rd lens image side surface is R6, and which meets following condition：
0.20<f/R6<1.50。
13. imagery optical systems according to claim 12, it is characterised in that the imaging is used up
The focal length of system is f, and the radius of curvature on the 3rd lens image side surface is R6, and which meets following condition：
0.35<f/R6<1.20。
14. imagery optical systems according to claim 12, it is characterised in that the 3rd lens
Thickness on optical axis is CT3, and thickness of the 4th lens on optical axis is CT4, and which meets following condition：
CT4/CT3<1.60。
15. imagery optical systems according to claim 1, it is characterised in that the 4th lens in
Thickness on optical axis is CT4, and the 3rd lens are T34 with spacing distance of the 4th lens on optical axis,
Which meets following condition：
0.75<CT4/T34<2.25。
16. imagery optical systems according to claim 1, it is characterised in that first lens
Focal length is f1, and the focal length of the 5th lens is f5, and the focal length of the 6th lens is f6, and | f1 | is more than | f5 |
And | f6 |.
17. a kind of image-taking devices, it is characterised in that include：
Imagery optical system as claimed in claim 1；And
One electronics photo-sensitive cell, which is arranged at an imaging surface of the imagery optical system.
18. a kind of electronic installations, it is characterised in that include：
Image-taking device as claimed in claim 17.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910174049.1A CN109669257B (en) | 2015-09-30 | 2015-09-30 | Imaging optical system, image capturing device and electronic device |
| CN201910171402.0A CN109683292B (en) | 2015-09-30 | 2015-09-30 | Imaging optical system, image capturing device and electronic device |
| CN201510638188.7A CN106556919B (en) | 2015-09-30 | 2015-09-30 | Imagery optical system, image-taking device and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510638188.7A CN106556919B (en) | 2015-09-30 | 2015-09-30 | Imagery optical system, image-taking device and electronic device |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910171402.0A Division CN109683292B (en) | 2015-09-30 | 2015-09-30 | Imaging optical system, image capturing device and electronic device |
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| CN201910174049.1A Active CN109669257B (en) | 2015-09-30 | 2015-09-30 | Imaging optical system, image capturing device and electronic device |
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| CN109669257B (en) | 2021-06-04 |
| CN109683292B (en) | 2021-06-15 |
| CN106556919B (en) | 2019-04-02 |
| CN109669257A (en) | 2019-04-23 |
| CN109683292A (en) | 2019-04-26 |
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