CN103885157B - Taking lens - Google Patents
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- CN103885157B CN103885157B CN201210560035.1A CN201210560035A CN103885157B CN 103885157 B CN103885157 B CN 103885157B CN 201210560035 A CN201210560035 A CN 201210560035A CN 103885157 B CN103885157 B CN 103885157B
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Abstract
The present invention relates to a kind of taking lens, include aperture diaphragm, the first positive lens, the second negative lens, the 3rd lens, the 4th positive lens, the 5th negative lens in order from object side, meet conditional：0.8≦（R2F+r2R）/（R2F-r2R）≦1.2、0.8≦（R4F+r4R）/（R4F-r4R）≤ 1.6, -1.6≤f2/f≤- 0.8, -0.212≤T5/f5≤- 0.010（r2F：The radius of curvature of the side of the object of second lens, r2R：The radius of curvature of the image side surface of second lens, r4F：The radius of curvature of the side of the object of 4th lens, r4R：The radius of curvature of the image side surface of 4th lens, f2：Focal length, the f of second lens：Focal length, the T5 of taking lens complete set：Thickness, f5 on the optical axis of 5th lens：The focal length of 5th lens）, shot object image is imaged in the shooting face of capturing element.
Description
Technical field
The present invention relates to taking lens.More specifically, it is related to by capturing element（Such as CCD（Charge coupled device) type
Imaging sensor, CMOS（CMOS complementary metal-oxide-semiconductor) type imaging sensor etc. solid-state image pickup element）It is taken into shot
The shooting Optical devices of the image of body, carry the shooting Optical devices subsidiary image input function digital device, shoot
With the small-sized taking lens of the optical image of high resolution ratio formation subject on the smooth surface of element.
Background technology
In recent years, the pickup light of the solid-state image pickup element such as CCD type imaging sensor or CMOS-type imaging sensor will be used
Learn device and be equipped on portable terminal device, be in progress with the popularization of the portable terminal device, be equipped with to the market supply using with high pixel
The device of the shooting Optical devices of several capturing elements, to obtain the image of higher-definition.This has the shooting member of high pixel count
Part was once maximized, in recent years pixel gradually High precision, and capturing element is miniaturized.Shooting member for this High precision
The taking lens of part is required high resolution ratio in order to corresponding with the pixel of High precision.
The resolution ratio of lens has boundary because of F values, and the small bright lens of F values can obtain high-resolution, therefore at present
Sufficient performance can not be obtained in the F values of F2.8 degree.Therefore, the bat of suitable high pixelation/High precision/miniaturization is sought
Take the photograph element, F2 degree bright taking lens.As the taking lens of this purposes because with 3 chip architectures or 4 chip architectures
Lens compare heavy caliber when high-performance, therefore propose the taking lens of 5 chip architectures can be achieved.
As the taking lens of 5 chip architecture, there is following taking lens disclosed in patent document 1 and patent document 2, i.e.
It is made up of pre-group, aperture diaphragm and the rear group from object side in order, pre-group is by the first lens with positive or negative refractive index
Constituted with the second lens with positive refractive index, rear group is by the 3rd lens with negative refractive index and with positive refractive index
The 4th lens and the refractive index with negative or positive the 5th lens constitute.In addition, being used as the taking lens of 4 chip architectures, patent
Have following taking lens disclosed in document 3, i.e. be made up of pre-group, aperture diaphragm and the rear group from object side in order, pre-group by
The first lens with negative refractive index and the second lens with positive refractive index are constituted, and rear group is by with negative refractive index
3rd lens and the 4th lens composition with positive refractive index.
Patent document 1：（Japan）JP 2007-279282 publications
Patent document 2：（Japan）JP 2006-293042 publications
Patent document 3：（Japan）JP 2007-322844 publications
But, in the taking lens described in above-mentioned patent document 1, because pre-group is made up of sphere system, so when bright
During to F2 degree, the correction of spherical aberration or coma aberration is insufficient, it is impossible to ensure good performance.Further, since pre-group and
Group is the structure with positive refractive index afterwards, so having the structure of the telephotograph type of negative refractive index, light compared to rear group
Learning the principle point location of system turns into image side, and rear focus is elongated.Therefore, for be unfavorable for miniaturization type.
In addition, the taking lens described in above-mentioned patent document 2 has the lightness of F2 degree, but due to being configured at aperture
The first lens and the second lens of the object side of diaphragm are the structure with positive refractive index, so the color in pre-group is corrected not
Fully.In addition, identical with the lens described in patent document 1, pre-group and rear group are the structure with positive refractive index, and
Final lens are also positive lens, therefore, to be unfavorable for the type of miniaturization.
In addition, the taking lens described in above-mentioned patent document 3 has a lightness of F2 degree, but due to for 4 chip architectures,
So aberration correction is insufficient.Therefore, it is difficult to which it is the taking lens for being adapted to high pixelation to say.
The content of the invention
The present invention be in view of such problem points and complete, its object is to there is provided one kind compared with existing type it is small
The taking lens of the 5 bright chip architectures for the F2.0 degree that type and various aberrations are corrected well.
To achieve the above object, the taking lens of the 1st invention, for being imaged shot object image in the shooting face of capturing element,
Characterized in that, include aperture diaphragm in order from object side, it is the first positive lens, the second negative lens, the 3rd lens, positive
4th lens, the 5th negative lens, and meet following conditional（1）~（4）：
0.8≦（R2F+r2R）/（R2F-r2R）≦1.2...（1）
0.8≦（R4F+r4R）/（R4F-r4R）≦1.6...（2）
- 1.6≤f2/f≤- 0.8...（3）
-0.212≦T5/f5≦-0.010...（4）
Wherein,
r2F：The radius of curvature of the side of the object of second lens,
r2R：The radius of curvature of the image side surface of second lens,
r4F：The radius of curvature of the side of the object of 4th lens,
r4R：The radius of curvature of the image side surface of 4th lens,
f2：The focal length of second lens,
f：The focal length of taking lens complete set,
T5：Thickness on the optical axis of 5th lens,
f5：The focal length of 5th lens.
The taking lens of 2nd invention, it is characterised in that in above-mentioned 1st invention, meet following conditional（5）：
0.4≦f1/f≦0.8...（5）
Wherein,
f1：The focal length of first lens,
f：The focal length of taking lens complete set.
The taking lens of 3rd invention, it is characterised in that in above-mentioned 1st or the 2nd invention, meet following conditional
（6）：
0.15≦T1/f≦0.28...（6）
Wherein,
T1：Thickness on the optical axis of first lens,
f：The focal length of taking lens complete set.
The taking lens of 4th invention, it is characterised in that in above-mentioned 1st ~ the 3rd any invention, the 5th lens
Image side surface have optical axis upper recess surface towards image side aspherical shape, on the contour line along the lens section of optical axis from
The intersection point of optical axis is towards in the case of the end of effective coverage, and the position beyond the intersection point with optical axis has flex point.
The shooting Optical devices of 5th invention, it is characterised in that possess the taking lens of above-mentioned 1st ~ the 4th any invention
The capturing element of electric signal is transformed into the optical image on the shooting face of will be formed in, with the shape on the shooting face of the capturing element
Mode into the optical image of subject sets the taking lens.
The digital device of 6th invention, it is characterised in that by possessing the shooting Optical devices of above-mentioned 5th invention, so that attached
Added the still image of subject to photograph, dynamic image photography at least one function.
The digital device of 7th aspect, it is characterised in that in above-mentioned 6th invention, the digital device is portable terminal device.
By using the structure of the present invention, small-sized compared with existing type and various aberrations can be realized by school well
The taking lens of bright 5 chip architectures of F2.0 degree just and the shooting Optical devices for possessing taking lens.Moreover, passing through
The shooting Optical devices of the present invention are used for the digital device such as mobile phone, portable information terminal, can to digital facility compact it is attached
Plus high performance image input function.
Brief description of the drawings
Fig. 1 is first embodiment（Embodiment 1）Optics pie graph；
Fig. 2（A）~ Fig. 2（C）It is the aberration diagram of embodiment 1；
Fig. 3 is second embodiment（Embodiment 2）Optics pie graph；
Fig. 4（A）~ Fig. 4（C）It is the aberration diagram of embodiment 2；
Fig. 5 is the 3rd embodiment（Embodiment 3）Optics pie graph；
Fig. 6（A）~ Fig. 6（C）It is the aberration diagram of embodiment 3；
Fig. 7 is the 4th embodiment（Embodiment 4）Optics pie graph；
Fig. 8（A）~ Fig. 8（C）It is the aberration diagram of embodiment 4；
Fig. 9 is the 5th embodiment（Embodiment 5）Optics pie graph；
Figure 10（A）~ Figure 10（C）It is the aberration diagram of embodiment 5；
Figure 11 is the 6th embodiment（Embodiment 6）Optics pie graph；
Figure 12（A）~ Figure 12（C）It is the aberration diagram of embodiment 6；
Figure 13 is the schematic diagram for representing to be equipped with the schematic configuration example of the digital device of taking lens.
Description of symbols
DU digital devices
LU shoots Optical devices
LN taking lens
The lens of L1~L5 first~the 5th
ST aperture diaphragms（Aperture）
SR capturing elements
SS smooth surfaces（Shooting face）
IM image planes（Optical image）
AX optical axises
1 signal processing part
2 control units
3 memories
4 operating portions
5 display parts
Embodiment
Below, taking lens of the present invention etc. is illustrated.The taking lens of the present invention is in the shooting face of capturing element
（The photoelectric conversion department of such as solid-state image pickup element）It is imaged the taking lens of shot object image, it is characterised in that from object side by suitable
Sequence includes aperture diaphragm, the first positive lens, the second negative lens, the 3rd lens, the 4th positive lens, the 5th negative lens,
Meet following conditional（1）~（4）.
0.8≦（R2F+r2R）/（R2F-r2R）≦1.2...（1）
0.8≦（R4F+r4R）/（R4F-r4R）≦1.6...（2）
- 1.6≤f2/f≤- 0.8...（3）
- 0.212≤T5/f5≤- 0.010...（4）
Wherein,
r2F：The radius of curvature of the side of the object of second lens,
r2R：The radius of curvature of the image side surface of second lens,
r4F：The radius of curvature of the side of the object of 4th lens,
r4R：The radius of curvature of the image side surface of 4th lens,
f2：The focal length of second lens,
f：The focal length of taking lens complete set,
T5：Thickness on the optical axis of 5th lens,
f5：The focal length of 5th lens.
To obtain the taking lens that small-sized and bright and then aberration is corrected well, basic structure of the invention
It is made up of aperture diaphragm, the first positive lens, the second negative lens, the 3rd lens, the 4th positive lens, the 5th negative lens.
The lens arrangement passes through by being followed successively by aperture diaphragm, the first lens, the second lens, the 3rd lens and the 4th lens structure from object side
Into positive lens group and the negative so-called telephotograph type of the 5th lens forming configuration, be advantageous for the small of taking lens total length
The structure of type.In addition, by the way that at least 2 in 5 chip architectures are set into negative lens, increasing the face with disperse function, easily
Carry out the correction that amber hereby cuts down sum.Accordingly, it is capable to access until picture periphery ensure that the taking lens of good imaging performance.
In addition, the object side by the way that aperture diaphragm to be configured to the first lens, as even if realize low level also can it is easy to ensure that
The structure of the telecentricity of image side light beam.
Conditional（1）It is the conditional for the optimal shape for defining the second lens for realizing heavy caliber.Pass through condition
Formula（1）Respective value be less than its upper limit so that the radius of curvature of the image side surface of the second lens is suitably set, therefore, it is possible to press down
Make the spherical aberration or coma aberration of the high-order produced in image side surface.On the other hand, conditional is passed through（1）Respective value exceed its
Lower limit, so that the correction of coma aberration, curvature of the image, astigmatism, chromatic aberation etc. becomes easy.
Conditional（2）It is the conditional for the optimal shape for defining the 4th lens for realizing heavy caliber.4th lens
Positive multiplying power is respectively provided with the first lens（Multiplying power：The amount defined by the inverse of focal length）, big effect is undertaken for low level.
Pass through conditional（2）Respective value be less than its upper limit, can prevent the radius of curvature of the side of the object of the 4th lens extremely strengthens,
Therefore, it is possible to suppress the spherical aberration or coma aberration of the high-order produced in side of the object.On the other hand, conditional is passed through（2）
Respective value exceed its lower limit, the radius of curvature of the side of the object of the 4th lens can be suitably maintained, therefore, it is possible to reduce direction
The light of capturing element periphery can suppress coma aberration, distorton aberration etc. to the incidence angle of side of the object.
Conditional（3）It is the conditional for suitably setting the focal length of the second lens.If it exceeds conditional（3）It is upper
Limit, then the negative multiplying power of the second lens is too strong, it is impossible to by other lens full correction coma aberrations.In addition, when less than conditional
（3）Lower limit when, it is impossible to fully correction the first lens produce spherical aberration and axle on chromatic aberation.
Conditional（4）It is the conditional for suitably setting the thickness of the 5th lens.If it exceeds conditional（4）It is upper
Limit, then the correction of distorton aberration is insufficient, and can not play the advantage of telephotograph type, it is difficult to realize low level.In addition,
If less than conditional（4）Lower limit, then can not strengthen the multiplying power of the periphery of the 5th lens, therefore, the correction of curvature of the image
It is insufficient, in addition, the telecentricity of image side light beam deteriorates, it is difficult to ensure peripheral light amount.
Show as described above, according to the feature structure of the taking lens of the present invention, can realize and existing type phase
Than small-sized and correct the taking lens of various aberrations, F2.0 degree 5 bright chip architectures well and to possess this saturating
The shooting Optical devices of mirror.If moreover, the shooting Optical devices are used for into the digital device such as mobile phone, portable information terminal,
High performance image input function can be added to digital facility compact, its densification, high performance, Gao Gong is can aid in
Energyization etc..Below explanation can balance obtain such effect well, and for realizing higher optical property, miniaturization
Deng condition etc..
Miniaturization about taking lens, particularly low level, are preferably in and meet following conditional（α1）Water
It is flat.By meeting the conditional（α1）, it can be ensured that above-mentioned good aberration performance and lightness, and shooting can be realized
Camera lens and low level and the lightweight for shooting Optical devices.For example it is being equipped on intelligent machine（High functional mobile phone）Or tablet terminal
Shooting Optical devices in, meet conditional（α1）, and TL≤5.0mm is preferably met, more preferably meet TL≤4.5mm.
TL/2Y’≦0.9...（α1）
Wherein,
TL：Lens total length（Taking lens complete set from most lean on object side lens face to the optical axis of image side focus on away from
From）、
2Y’：The diagonal line length in the shooting face of capturing element（Pair of the rectangle actual effect pixel region of such as solid-state image pickup element
Linea angulata is long）.
More preferably meet following conditional（1a）.
0.8≦（R2F+r2R）/（R2F-r2R）≦1.0...（1a）
The conditional（1a）Even in defining above-mentioned condition formula（1）Condition and range in, also specify based on above-mentioned sight
The preferred condition and range of point etc..It is therefore preferable that by meeting conditional（1a）, can further increase above-mentioned effect
Really.
More preferably meet following conditional（2a）.
1.0≦（R4F+r4R）/（R4F-r4R）≦1.5...（2a）
The conditional（2a）Even in defining above-mentioned condition formula（2）Condition and range in, also specify based on above-mentioned sight
The preferred condition and range of point etc..It is therefore preferable that by meeting conditional（2a）, can further increase above-mentioned effect
Really.
More preferably meet following conditional（3a）.
- 1.4≤f2/f≤- 0.9...（3a）
The conditional（3a）Even in defining above-mentioned condition formula（3）Condition and range in, also specify based on above-mentioned sight
The preferred condition and range of point etc..It is therefore preferable that by meeting conditional（3a）, can further increase above-mentioned effect
Really.
More preferably meet following conditional（4a）.
- 0.200≤T5/f5≤- 0.010...（4a）
The conditional（4a）Even in defining above-mentioned condition formula（4）Condition and range in, also specify based on above-mentioned sight
The preferred condition and range of point etc..It is therefore preferable that by meeting conditional（4a）, can further increase above-mentioned effect
Really.
It is preferred that meeting following conditional（5）.
0.4≦f1/f≦0.8...（5）
Wherein,
f1：The focal length of first lens,
f：The focal length of taking lens complete set.
Conditional（5）It is the conditional for suitably setting the focal length of the first lens.If it exceeds conditional（5）It is upper
The convergence variation of limit, then light beam, accordingly, it is difficult to realize low level and be set to heavy caliber, if in order to prevent the situation
And strengthening the positive multiplying power of the 4th lens, then this is difficult to suppress coma aberration or astigmatism.In addition, if less than conditional（5）'s
Lower limit, then be difficult by other lens and fully correct chromatic aberation on the spherical aberration produced in the first lens and axle.
More preferably meet following conditional（5a）.
0.5≦f1/f≦0.8...（5a）
The conditional（5a）Even in defining above-mentioned condition formula（5）Condition and range in, also specify based on above-mentioned sight
The preferred condition and range of point etc..It is therefore preferable that by meeting conditional（5a）, can further increase above-mentioned effect
Really.
It is preferred that meeting following conditional（6）.
0.15≦T1/f≦0.28...（6）
Wherein,
T1：Thickness on the optical axis of first lens,
f：The focal length of taking lens complete set.
Conditional（6）It is the conditional for suitably setting the thickness of the first lens.More than conditional（6）The upper limit
In the case of, if to obtain desired positive multiplying power in the first lens, the curvature of side of the object becomes extremely strong, it is difficult to suppress
The generation of spherical aberration or coma aberration.In addition, less than conditional（6）Lower limit in the case of, it is impossible in the first lens
The positive multiplying power needed for low level is fully obtained, accordingly, it would be desirable to strengthen the multiplying power of the 4th lens, coma aberration or astigmatism is brought
Increase.
More preferably meet following conditional（6a）.
0.16≦T1/f≦0.24...（6a）
The conditional（6a）Even in defining above-mentioned condition formula（6）Condition and range in, also specify based on above-mentioned sight
The preferred condition and range of point etc..It is therefore preferable that by meeting conditional（6a）, can further increase above-mentioned effect
Really.
The image side surface of above-mentioned 5th lens has the aspherical shape towards image side in optical axis upper recess surface, along optical axis
From the intersection point with optical axis towards in the case of the end of effective coverage in the contour line of lens section, preferably beyond the intersection point with optical axis
Position there is flex point（The point of inflection）.Here, " flex point " refers in the curve of the lens-section shape in effective radius, aspheric
Section on face turn into the plane vertical with optical axis it is aspherical on point.By the way that the image side surface of above-mentioned 5th lens is set to
With the aspherical shape desired by the concave surface benchmark of feature as described above, the correction of distorton aberration well can be carried out,
Moreover, can be near optical axis throughout the region-wide telecentricity for being advantageously controlled image side light beam of picture.
Lens are preferably all molded of plastic material.That is, taking lens preferably only has plastic lens as lens.In recent years
Come, for the purpose of the miniaturization for shooting Optical devices entirety comprising solid-state image pickup element, even developing same pixel number
Solid-state image pickup element, pel spacing is also small, as a result shoots face size also small element.Consolidate towards this shooting face size is small
The taking lens of body capturing element needs to make the focal length of complete set shorter, therefore, and the radius of curvature and external diameter of each lens become suitable
It is small.Therefore, can be by the plastics that are manufactured by injection moulding compared to the glass lens manufactured by time-consuming attrition process
Lens constitute all lens, thus, even radius of curvature and the small lens of external diameter, also inexpensively can largely be produced.Separately
Outside, plastic lens is due to that can reduce pressed temperature, so can suppress the loss of molding metal mold, its result can reduce shaping
The replacing number of times and maintenance times of metal pattern, being capable of cost of implementation reduction.
The taking lens of the present invention is suitable as the digital device of subsidiary image input function（Such as portable terminal device）
Taking lens is used, by the way that it is combined with capturing element etc., can constitute the image that obtains subject optically and will
Its as electric signal output shooting Optical devices.Shoot still image photography and dynamic that Optical devices are formed in subject
In image photography using camera main composition element Optical devices, such as by from object（That is subject）Side possesses successively
The taking lens that forms the optical image of object, the capturing element that the optical image formed by the taking lens is transformed into electric signal and
Constitute.Moreover, by with the smooth surface of capturing element（Shoot face）The mode of the upper optical image for forming subject configures tool
There is the taking lens of above-mentioned feature structure, small-sized/low cost can be realized and with high performance shooting Optical devices and tool
The digital device of the standby Optical devices.
As the example of the digital device of subsidiary image input function, digital camera, video camera, supervision camera, car are enumerated
Carry the cameras such as camera, video telephone camera.In addition, enumerating in PC, portable using digital device（Such as mobile phone, intelligence
The small information device end such as machine, tablet terminal, notebook computer）, their peripheral equipment（Scanner, printer etc.）, its
Pass through equipment that is built-in or plug-in and carrying camera function in its digital device etc..It can be seen from these examples, it can not only pass through
Camera is constituted using Optical devices are shot, additionally it is possible to the additional photograph work(by the carrying shooting Optical devices in various equipment
Energy.The digital device of subsidiary image input function such as the mobile phone that may be constructed subsidiary camera.
In Figure 13, as one of the digital device of subsidiary image input function, digital device is represented with schematic cross section
DU schematic configuration example.The shooting Optical devices LU carried in digital device DU shown in Figure 13 is from object（That is subject）Side according to
It is secondary to possess：Form the optical image of object（Image planes）IM taking lens LN（AX：Optical axis）, parallel flat PT（It is first equivalent to shooting
Part SR cloche；Optical filters such as the optical low-pass filter, the infrared cutoff filter that configure as needed etc.）, will be logical
Cross taking lens LN and be formed at smooth surface（Shooting face）Optical image IM on SS is transformed into the capturing element SR of electric signal.By
In the case that shooting Optical devices LU constitutes the digital device DU of subsidiary image input function, generally configured in its body interior
Optical devices LU is shot, but when realizing camera function, can be by the way of corresponding with needs.For example, can be by unit
Main body disassembly eases of the shooting Optical devices LU relative to digital device DU of change is rotatably constituted.
As described above, taking lens LN utilizes 5 chip architectures focused being made up of successively the first~the 5th lens from object side
Constitute, as the structure that optical image IM is formed on capturing element SR smooth surface SS.As capturing element SR, such as using tool
There are the solid-state image pickup elements such as CCD type imaging sensor, the CMOS-type imaging sensor of multiple pixels.Taking lens LN is with shooting
Element SR photoelectric conversion department is that the mode for the optical image IM that subject is formed on smooth surface SS is set, therefore, by taking lens
The optical image IM of LN formation is transformed into electric signal by capturing element SR.
Digital device DU is also equipped with signal processing part 1, control unit 2, memory 3, operation in addition to Optical devices LU is shot
Portion 4, display part 5 etc..The signal generated by capturing element SR is carried out defined digital picture as needed in signal processing part 1
Processing and image Compression etc., memory 3 is recorded in as digital image signal（Semiconductor memory, CD etc.）, or
According to circumstances via cable or it is transformed to infrared signal etc. and is sent to miscellaneous equipment（The communication function of such as mobile phone）.Control
Portion 2 is made up of microcomputer, is concentrated and is carried out camera function（Still image camera function, dynamic image camera function etc.）, image reproducing
The control of the functions such as function；Control for the lens moving mechanism of focusing etc..For example, being taken the photograph with the still image for carrying out subject
The mode of at least one party in shadow, dynamic image photography is controlled by 2 couples of shooting Optical devices LU of control unit.Display part 5 is
The part of the displays such as LCD monitor is included, using by the capturing element SR picture signals converted or being recorded in memory 3
Image information carry out image show.Operating portion 4 is to include operation button（Such as shutter release button）, operation dish（For example photograph mould
Formula disk）Deng the part of functional unit, by the information transmission of operator's operation input to control unit 2.
Secondly, the specific optical texture that taking lens LN is described in more detail in the first ~ the 6th embodiment is enumerated.Fig. 1, figure
3rd, in Fig. 5, Fig. 7, Fig. 9, Figure 11 respectively with optical cross-sectional represent in infinity focus state taking lens LN first~
6th embodiment.Jth lens Lj be from object side numerical digit be configured in j-th of lens taking lens LN image side it is flat
Row flat board PT assumes that the flat board of optical low-pass filter, IR cut-off filters, the seal glass of solid-state image pickup element etc..Constitute
Taking lens LN all lens faces are that aspherical, all lens are assumed using plastic material as optical material.In addition, it is assumed that
Make the first lens L1 to the 5th lens L5 is integrally mobile to be focused on automatically and the entirety of focusing of microspur handoff functionality etc. is gathered
It is burnt.
In the taking lens LN of the first ~ the 6th embodiment, be configured with order successively from object side aperture diaphragm ST,
Positive the first lens L1, the second negative lens L2, positive or negative the 3rd lens L3, the 4th positive lens L4 and the 5th negative lens
L5.Be the first lens L1 convex surface facing object side, the second lens L2 concave surface is towards image side.In addition, the picture of the 5th lens
Side is by with the position beyond optical axis AX intersection point there is the aspherical of flex point to constitute.
But, because variations in refractive index of the plastic material in temperature change is big, if so whole lens are by plastics
Lens are constituted, then when environment temperature there occurs change, the problem of image point position for producing taking lens complete set changes.But
It is, recently, it is known that if mixing inorganic fine particles in a plastic material, the shadow for the temperature change that plastic material is born can be reduced
Ring.It is described in detail, if hybrid fine particles generally in transparent plastic material, light, which is produced, to be scattered, decrease in transmission,
Accordingly, it is difficult to be used as optical material, but if making the size of particulate smaller than the wavelength of transmitted light beam, then scattering can be made real
Do not occur in matter.
In addition, plastic material is because of temperature rising, refractive index is reduced, but inorganic particulate refractive index when temperature rises rises.
Therefore, when to be acted on by way of being cancelled each other out using these temperature dependencies, refractive index change can be nearly free from
Change.Specifically, can by disperseing the inorganic particulate that maximum length is less than 20 nanometers in the plastic material as mother metal
It is set to the temperature dependency of refractive index extremely low plastic material.For example by disperseing niobium oxide in acrylic resin（Nb2O5）
Particulate, the variations in refractive index that temperature change is brought can be reduced.
In the taking lens LN of the present invention, pass through the positive lens that refractive index is larger（Such as the first lens L1, the 4th lens
L4）Or all lens（First ~ the 5th lens L1~L5）, can be with using the plastic material for being dispersed with such inorganic particulate
The image point position during temperature changes of taking lens LN complete sets is changed and suppresses small.
In above-mentioned each embodiment and each embodiment described later, the incident light beam in face is shot to solid-state image pickup element
Chief ray incidence angles shoot face periphery be not necessarily very small design.But, in nearest technology, by grinding again
Study carefully the colour filter and integrated chip of solid-state image pickup element（onchip）The arrangement of microlens array, can mitigate shading.It is specific and
Speech, if relative to capturing element shooting face pel spacing by between the arrangement of colour filter and integrated chip microlens array
It is smaller away from being set as, then more in the periphery in the face of shooting, relative to each pixel, colour filter and integrated chip microlens array more to
Taking lens optical axis side displacement, therefore, it can efficiently import the light beam of oblique incidence the light accepting part of each pixel.Thus, it is possible to
The shading produced on solid-state image pickup element is suppressed to smaller.In each embodiment described later, for having relaxed above-mentioned requirements
Amount, as direct at smallerization design example.
【Embodiment】
Below, enumerate structured data of embodiment etc. and further specifically describe the structure for implementing the taking lens of the present invention
Deng.The embodiment 1~6 enumerated herein（EX1~6）It is and the above-mentioned first~the 6th corresponding Numerical implementation of embodiment difference
Example, represents the optics pie graph of the first~the 6th embodiment（Fig. 1, Fig. 3, Fig. 5, Fig. 7, Fig. 9, Figure 11）Represent respectively corresponding
Embodiment 1~6 lens arrangement.
In the structured data of each embodiment, as face data, face numbering, radius of curvature are represented in order from the column in left side
r（mm）, axle d spaced above（mm）, relevant d lines（Wavelength：587.56nm）Refractive index nd, the Abbe number vd about d lines.Opposite
Numbering mark * face is aspherical, and its face shape is by having used the local orthogonal coordinate system by origin of vertex of surface（X、Y、Z）
Following formula（AS）Definition.As aspherical surface data, asphericity coefficient etc. is represented.In addition, in the aspherical number of each embodiment
The coefficient for the item do not recorded in is 0, is E-n=× 10 about all data-n。
【Number 1】
Wherein,
h：Relative to X-axis（Optical axis AX）The height in vertical direction（h2=Y2+ Z2）、
X：The sag of chain in the optical axis AX directions on height h position（Vertex of surface benchmark）、
R：Benchmark radius of curvature（Equivalent to radius of curvature r）、
K：The constant of the cone,
Ai：The asphericity coefficient of i times.
As various data, the focal length of taking lens complete set is represented（f、mm）, rear focus（fB、mm）, F numbering（F）, shoot
Element SR shooting face SS diagonal line length（2Y’、mm；Y’：Maximum image height）, lens total length（TL、mm）, half draw angle（ω、°）、
Conditional（α1）Respective value（TL/2Y’）, moreover, as simple lens data, representing the focal length of each lens（mm）.But, here
The rear focus fB used be from parallel flat PT image side surface to image planes IM distance, lens total length TL be from lens foremost to
Image planes IM distance.In addition, table 1 represents the conditional respective value of each embodiment.
Fig. 2, Fig. 4, Fig. 6, Fig. 8, Figure 10, Figure 12 are embodiments 1~6（EX1~6）Aberration diagram,（A）Represent spherical aberration
（mm）,（B）Represent astigmatism（mm）,（C）Represent distorton aberration（%）.In spherical aberration diagram（A）In, solid line is by from paraxial image planes
The departure in optical axis AX directions represent relative to d lines（Wavelength 587.56nm）Amount of spherical aberration, dotted line is by from paraxial picture
The departure in the optical axis AX directions in face is represented relative to g lines（Wavelength 435.84nm）Amount of spherical aberration, single dotted broken line by from
The departure in the optical axis AX directions of paraxial image planes is represented relative to c lines（Wavelength 656.28nm）Amount of spherical aberration, the longitudinal axis represents F
Value.In astigmatism figure（B）In, dotted line M is represented the meridian relative to d lines by the departure in the optical axis AX directions from paraxial image planes
Image planes, solid line S is represented the vertical disconnected image planes relative to d lines by the departure in the optical axis AX directions from paraxial image planes, and the longitudinal axis is represented
Image height Y '（mm）.In distorton aberration figure（C）In, transverse axis represents the deformation relative to d lines, and the longitudinal axis represents image height Y '（mm）.In addition,
The half of shooting face SSs of the maximum image height Y ' equivalent to capturing element SR diagonal line length.
The taking lens LN of embodiment 1（Fig. 1）By from the aperture diaphragm ST of object side in order, the first positive lens L1,
Negative the second lens L2, the 3rd positive lens L3, the 4th positive lens L4, the 5th negative lens L5 are constituted, all lens by
Plastic material is formed, and lens face is aspherical.In the case where observing each lens with paraxial face shape, the first lens L1 is
Biconvex positive lens, the second lens L2 is double-concave negative lens, and the 3rd lens L3 is convex positive planoconvex spotlight, the 4th lens in object side
L4 is convex positive concave-convex lens in image side, and the 5th lens L5 is the negative lens of concave-concave.In addition, being configured in taking lens LN image side
There is wave filter（Such as optical low-pass filter or IR cut-off filters）, assume solid-state image pickup element seal glass etc. it is parallel
Flat board PT.
The taking lens LN of embodiment 2（Fig. 3）By from the aperture diaphragm ST of object side in order, the first positive lens L1,
Negative the second lens L2, the 3rd positive lens L3, the 4th positive lens L4, the 5th negative lens L5 are constituted, all lens by
Plastic material is formed, and lens face is aspherical.In the case where observing each lens with paraxial face shape, the first lens L1 is
The positive lens of biconvex, the second lens L2 is the negative lens of concave-concave, and the 3rd lens L3 is convex positive planoconvex spotlight, the 4th in object side
Lens L4 is convex positive concave-convex lens in image side, and the 5th lens L5 is the negative lens of concave-concave.In addition, in taking lens LN image side
It is configured with wave filter（Such as optical low-pass filter or IR cut-off filters）, assume the seal glass etc. of solid-state image pickup element
Parallel flat PT.
The taking lens LN of embodiment 3（Fig. 5）By from the aperture diaphragm ST of object side in order, the first positive lens L1,
Negative the second lens L2, the 3rd positive lens L3, the 4th positive lens L4, the 5th negative lens L5 are constituted, all lens by
Plastic material is formed, and lens face is aspherical.In the case where observing each lens with paraxial face shape, the first lens L1 is
The positive lens of biconvex, the second lens L2 is the negative lens of concave-concave, and the 3rd lens L3 is convex positive planoconvex spotlight, the 4th in object side
Lens L4 is convex positive concave-convex lens in image side, and the 5th lens L5 is the negative lens of concave-concave.In addition, in taking lens LN image side
It is configured with wave filter（Such as optical low-pass filter or IR cut-off filters）, assume the seal glass etc. of solid-state image pickup element
Parallel flat PT.
The taking lens LN of embodiment 4（Fig. 7）By from the aperture diaphragm ST of object side in order, the first positive lens L1,
Negative the second lens L2, the 3rd negative lens L3, the 4th positive lens L4, the 5th negative lens L5 are constituted, all lens by
Plastic material is formed, and lens face is aspherical.In the case where observing each lens with paraxial face shape, the first lens L1 is
The positive lens of biconvex, the second lens L2 is the negative lens of concave-concave, and the 3rd lens L3 is recessed negative meniscus lens in image side, and the 4th is saturating
Mirror L4 is convex positive concave-convex lens in image side, and the 5th lens L5 is the negative lens of concave-concave.In addition, matching somebody with somebody in taking lens LN image side
It is equipped with wave filter（Such as optical low-pass filter or IR cut-off filters）, assume solid-state image pickup element seal glass etc. it is flat
Row flat board PT.
The taking lens LN of embodiment 5（Fig. 9）By from the aperture diaphragm ST of object side in order, the first positive lens L1,
Negative the second lens L2, the 3rd positive lens L3, the 4th positive lens L4, the 5th negative lens L5 are constituted, all lens by
Plastic material is formed, and lens face is aspherical.In the case where observing each lens with paraxial face shape, the first lens L1 is
The positive lens of biconvex, the second lens L2 is the negative lens of concave-concave, and the 3rd lens L3 is convex positive planoconvex spotlight, the 4th in object side
Lens L4 is convex positive concave-convex lens in image side, and the 5th lens L5 is the negative lens of concave-concave.In addition, in taking lens LN image side
It is configured with wave filter（Such as optical low-pass filter or IR cut-off filters）, assume the seal glass etc. of solid-state image pickup element
Parallel flat PT.
The taking lens LN of embodiment 6（Figure 11）By from the aperture diaphragm ST of object side in order, the first positive lens L1,
Negative the second lens L2, the 3rd positive lens L3, the 4th positive lens L4, the 5th negative lens L5 are constituted, all lens by
Plastic material is formed, and lens face is aspherical.In the case where observing each lens with paraxial face shape, the first lens L1 is
The positive lens of biconvex, the second lens L2 is recessed negative meniscus lens in image side, and the 3rd lens L3 is convex positive plano-convex in object side
Lens, the 4th lens L4 is convex positive concave-convex lens in image side, and the 5th lens L5 is the negative lens of concave-concave.In addition, shooting mirror
Head LN image side is configured with wave filter（Such as optical low-pass filter or IR cut-off filters）, assume solid-state image pickup element it is close
Seal the parallel flat PT of glass etc..
Embodiment 1
Unit：mm
Face data
Aspherical surface data
Second face
K=0.73738E+00
A4=- 0.23195E-01
A6=- 0.19578E-01
A8=0.29831E-01
A10=- 0.91606E-01
A12=0.89175E-01
A14=- 0.51475E-01
3rd face
K=- 0.88673E+02
A4=0.20661E-01
A6=0.96030E-01
A8=- 0.18244E+00
A10=-0.11672E-02
A12=0.46941E-01
A14=0.10608E-01
Fourth face
K=0.21528E+02
A4=0.10799E-01
A6=0.17926E+00
A8=- 0.24119E+00
A10=- 0.83162E-01
A12=0.19900E+00
A14=- 0.30968E-01
5th face
K=- 0.31344E+02
A4=0.15544E+00
A6=- 0.67883E-01
A8=0.73401E-01
A10=- 0.42046E-02
A12=- 0.81554E-01
A14=0.84143E-01
6th face
K=- 0.78894E+02
A3=- 0.41274E-01
A4=0.28108E-01
A5=- 0.18551E+00
A6=0.79822E-01
A7=0.12609E+00
A8=- 0.73527E-01
A10=- 0.66279E-01
A12=0.11943E+00
A14=- 0.53716E-01
7th face
K=0.00000E+00
A4=-0.85797E-01
A6=0.54167E-01
A8=- 0.55051E-01
A10=0.31289E-01
A12=0.82636E-02
A14=- 0.59250E-02
Octahedral
K=0.14976E+02
A3=0.34873E-01
A4=- 0.63497E-01
A5=- 0.63073E-02
A6=0.73208E-01
A7=- 0.12114E-02
A8=- 0.31550E-01
A10=- 0.92739E-02
A12=0.11271E-01
A14=- 0.30433E-02
9th face
K=- 0.41827E+01
A4=- 0.79722E-01
A6=0.74067E-01
A8=- 0.24708E-01
A10=0.41068E-02
A12=- 0.10678E-02
A14=0.12695E-03
Tenth face
K=0.21670E+02
A3=- 0.17800E+00
A4=0.38445E-01
A5=0.89935E-02
A6=-0.17622E-02
A7=0.64112E-03
A8=0.43367E-03
A10=- 0.13239E-04
A12=- 0.21143E-04
A14=0.19746E-05
Tenth one side
K=- 0.70403E+01
A3=- 0.92091E-01
A4=0.10464E-01
A5=- 0.55640E-02
A6=0.53312E-02
A7=0.11416E-03
A8=- 0.12349E-02
A10=0.10165E-03
A12=- 0.11113E-04
A14=0.14035E-05
Various data
f=3.68mm
fB=0.45mm
F=2
2Y'=5.842mm
TL=4.55mm
ω=37.4°
TL/2Y '=0.779
Simple lens data
Embodiment 2
Unit：mm
Face data
Aspherical surface data
Second face
K=0.76542E+00
A4=- 0.24741E-01
A6=- 0.20949E-01
A8=0.29684E-01
A10=- 0.91561E-01
A12=0.87919E-01
A14=- 0.48846E-01
3rd face
K=- 0.90001E+02
A4=0.17985E-01
A6=0.90968E-01
A8=-0.17974E+00
A10=-0.50235E-03
A12=0.48086E-01
A14=0.97721E-02
Fourth face
K=- 0.73275E+02
A3=- 0.27688E-01
A4=0.75232E-01
A5=- 0.81489E-01
A6=0.20402E+00
A7=0.40040E-01
A8=- 0.29621E+00
A10=- 0.25453E-01
A12=0.14178E+00
A14=- 0.84773E-02
5th face
K=- 0.85565E+01
A3=- 0.23039E-01
A4=0.64454E-01
A5=- 0.10977E-02
A6=0.16234E+00
A7=- 0.44305E-02
A8=- 0.32037E+00
A10=0.45766E+00
A12=- 0.40242E+00
A14=0.17712E+00
6th face
K=0.90000E+02
A3=- 0.47053E-01
A4=0.43389E-01
A5=- 0.20750E+00
A6=0.80022E-01
A7=0.12820E+00
A8=-0.63718E-01
A10=- 0.64954E-01
A12=0.11357E+00
A14=- 0.54054E-01
7th face
K=0.00000E+00
A4=- 0.86795E-01
A6=0.42711E-01
A8=- 0.46117E-01
A10=0.31680E-01
A12=0.78676E-02
A14=- 0.67256E-02
Octahedral
K=0.13035E+02
A3=0.44370E-01
A4=- 0.72759E-01
A5=0.10151E-01
A6=0.72236E-01
A7=- 0.39159E-02
A8=- 0.32565E-01
A10=- 0.78458E-02
A12=0.11949E-01
A14=- 0.35819E-02
9th face
K=- 0.42106E+01
A4=- 0.79786E-01
A6=0.80881E-01
A8=- 0.24859E-01
A10=0.32460E-02
A12=-0.11706E-02
A14=0.18291E-03
Tenth face
K=0.89619E+02
A3=- 0.17088E+00
A4=0.38075E-01
A5=0.76978E-02
A6=- 0.20400E-02
A7=0.62360E-03
A8=0.54927E-03
A10=- 0.96481E-05
A12=- 0.21813E-04
A14=0.18696E-05
Tenth one side
K=- 0.70569E+01
A3=- 0.91431E-01
A4=0.11947E-01
A5=- 0.51300E-02
A6=0.46480E-02
A7=- 0.62277E-04
A8=- 0.11926E-02
A10=0.11361E-03
A12=- 0.13079E-04
A14=0.16715E-05
Various data
f=3.70mm
fB=0.45mm
F=2
2Y'=5.867mm
TL=4.55mm
ω=37.3°
TL/2Y '=0.776
Simple lens data
Embodiment 3
Unit：mm
Face data
Aspherical surface data
Second face
K=0.36289E+00
A4=- 0.17322E-01
A6=0.16655E-01
A8=- 0.27227E-01
A10=-0.62734E-01
A12=0.14361E+00
A14=-0.91396E-01
3rd face
K=- 0.90000E+02
A4=- 0.39662E-02
A6=0.13781E+00
A8=- 0.22259E+00
A10=0.12637E-01
A12=0.68653E-01
A14=- 0.37730E-01
Fourth face
K=0.90000E+02
A4=0.19383E-01
A6=0.17599E+00
A8=- 0.21941E+00
A10=- 0.10578E+00
A12=0.19185E+00
A14=- 0.61220E-01
5th face
K=- 0.35312E+02
A4=0.17285E+00
A6=- 0.37830E-01
A8=0.63078E-01
A10=- 0.23538E-01
A12=- 0.57601E-01
A14=0.79998E-01
6th face
K=0.90000E+02
A3=- 0.62474E-01
A4=- 0.13327E-02
A5=-0.13676E+00
A6=0.49613E-01
A7=0.74428E-01
A8=- 0.70631E-01
A10=- 0.28274E-02
A12=0.10937E+00
A14=- 0.74823E-01
7th face
K=0.00000E+00
A4=- 0.14874E+00
A6=0.76527E-01
A8=- 0.67515E-01
A10=0.27299E-01
A12=0.23732E-01
A14=- 0.13708E-01
Octahedral
K=- 0.55383E+02
A4=- 0.11454E+00
A6=0.62472E-01
A8=- 0.21548E-01
A10=- 0.23122E-02
A12=0.68054E-02
A14=- 0.28866E-02
9th face
K=- 0.34054E+01
A4=- 0.88460E-01
A6=0.51775E-01
A8=- 0.96636E-03
A10=0.19711E-02
A12=- 0.39586E-02
A14=0.76364E-03
Tenth face
K=-0.22967E+01
A4=0.28928E-01
A6=- 0.48352E-02
A8=0.55647E-03
A10=0.60531E-04
A12=- 0.18633E-04
A14=0.11412E-05
Tenth one side
K=- 0.17978E+02
A4=- 0.83226E+00
A6=0.37675E-01
A8=0.21288E-02
A10=0.90556E-02
A12=0.94940E-04
A14=0.17570E-04
Various data
f=3.67mm
fB=0.45mm
F=1.9
2Y'=5.867mm
TL=4.55mm
ω=37.3°
TL/2Y '=0.776
Simple lens data
Embodiment 4
Unit：mm
Face data
Aspherical surface data
Second face
K=0.33674E+00
A4=- 0.17733E-01
A6=0.15840E-01
A8=- 0.29978E-01
A10=- 0.63238E-01
A12=0.14385E+00
A14=- 0.95794E-01
3rd face
K=0.37461E+02
A4=- 0.42011E-02
A6=0.13715E+00
A8=- 0.22216E+00
A10=0.14550E-01
A12=0.71162E-01
A14=-0.33228E-01
Fourth face
K=- 0.90000E+02
A4=0.29951E-01
A6=0.18411E+00
A8=- 0.21374E+00
A10=- 0.10252E+00
A12=0.19702E+00
A14=- 0.52139E-01
5th face
K=- 0.39888E+02
A4=0.18399E+00
A6=- 0.34234E-01
A8=0.60822E-01
A10=- 0.13810E-01
A12=- 0.38486E-01
A14=0.79998E-01
6th face
K=0.90000E+02
A3=- 0.58359E-01
A4=- 0.30616E-01
A5=- 0.11680E+00
A6=0.53316E-01
A7=0.64245E-01
A8=- 0.80561E-01
A10=0.10711E-02
A12=0.11028E+00
A14=- 0.76128E-01
7th face
K=0.00000E+00
A4=-0.14684E+00
A6=0.83204E-01
A8=- 0.65893E-01
A10=0.22765E-01
A12=0.22175E-01
A14=- 0.11905E-01
Octahedral
K=- 0.68240E+02
A4=- 0.11455E+00
A6=0.64854E-01
A8=- 0.20558E-01
A10=- 0.29174E-02
A12=0.58903E-02
A14=- 0.24409E-02
9th face
K=- 0.32836E+01
A4=- 0.93014E-01
A6=0.45925E-01
A8=0.17897E-03
A10=0.28849E-02
A12=- 0.39190E-02
A14=0.64414E-03
Tenth face
K=- 0.25363E+01
A4=0.25181E-01
A6=- 0.49877E-02
A8=0.60469E-03
A10=0.65707E-04
A12=- 0.18467E-04
A14=0.10291E-05
Tenth one side
K=-0.18004E+02
A4=-0.33311E-01
A6=0.66857E-02
A8=- 0.14313E-02
A10=0.11540E-03
A12=- 0.11084E-05
A14=0.94421E-07
Various data
f=3.66mm
fB=0.45mm
F=1.9
2Y'=5.867mm
TL=4.53mm
ω=37.6°
TL/2Y '=0.772
Simple lens data
Embodiment 5
Unit：mm
Face data
Aspherical surface data
Second face
K=0.74153E+00
A4=- 0.24204E-01
A6=- 0.19768E-01
A8=0.29285E-01
A10=- 0.90081E-01
A12=0.87245E-01
A14=- 0.49909E-01
3rd face
K=- 0.78010E+02
A4=0.19474E-01
A6=0.94270E-01
A8=- 0.18031E+00
A10=- 0.16043E-02
A12=0.47373E-01
A14=0.99755E-02
Fourth face
K=- 0.90000E+02
A4=0.90791E-02
A6=0.17611E+00
A8=- 0.23815E+00
A10=-0.81703E-01
A12=0.19480E+00
A14=-0.30000E-01
5th face
K=- 0.29786E+02
A4=0.15575E+00
A6=- 0.68478E-01
A8=0.69745E-01
A10=- 0.51907E-02
A12=- 0.80841E-01
A14=0.81258E-01
6th face
K=0.90000E+02
A3=- 0.42536E-01
A4=0.36743E-01
A5=- 0.19388E+00
A6=0.78760E-01
A7=0.12311E+00
A8=- 0.68845E-01
A10=- 0.62217E-01
A12=0.11445E+00
A14=- 0.54920E-01
7th face
K=0.00000E+00
A4=- 0.83995E-01
A6=0.47298E-01
A8=- 0.50543E-01
A10=0.32305E-01
A12=0.82350E-02
A14=- 0.68592E-02
Octahedral
K=0.17517E+02
A3=0.32512E-01
A4=-0.61123E-01
A5=- 0.70964E-02
A6=0.76368E-01
A7=- 0.23964E-02
A8=- 0.32484E-01
A10=- 0.76448E-02
A12=0.11083E-01
A14=- 0.31857E-02
9th face
K=- 0.42421E+01
A4=- 0.79276E-01
A6=0.74501E-01
A8=- 0.24351E-01
A10=0.39327E-02
A12=- 0.10544E-02
A14=0.11876E-03
Tenth face
K=0.33071E+02
A3=- 0.17066E+00
A4=0.38973E-01
A5=0.77206E-02
A6=- 0.21364E-02
A7=0.58901E-03
A8=0.54576E-03
A10=- 0.82460E-05
A12=- 0.21300E-04
A14=0.18019E-05
Tenth one side
K=- 0.71220E+01
A3=-0.91282E-01
A4=0.11508E-01
A5=-0.50750E-02
A6=0.46791E-02
A7=- 0.17433E-04
A8=- 0.11868E-02
A10=0.11681E-03
A12=- 0.12854E-04
A14=0.14995E-05
Various data
f=3.70mm
fB=0.45mm
F=2
2Y'=5.867mm
TL=4.55mm
ω=37.4°
TL/2Y '=0.776
Simple lens data
Embodiment 6
Unit：mm
Face data
Aspherical surface data
Second face
K=0.86517E+00
A3=- 0.13314E-02
A4=- 0.19305E-01
A5=- 0.25214E-02
A6=- 0.19822E-01
A7=0.17350E-02
A8=0.32303E-01
A10=- 0.93007E-01
A12=0.85296E-01
A14=- 0.39687E-01
3rd face
K=- 0.90000E+02
A4=0.40858E-01
A6=0.73150E-01
A8=- 0.18654E+00
A10=0.17233E-02
A12=0.55018E-01
A14=0.32962E-01
Fourth face
K=-0.89853E+02
A3=-0.37858E-01
A4=0.53275E-01
A5=- 0.92884E-01
A6=0.20070E+00
A7=0.36080E-01
A8=- 0.30347E+00
A10=- 0.32372E-01
A12=0.14649E+00
A14=0.10248E-01
5th face
K=- 0.11153E+02
A3=- 0.18124E-01
A4=0.60877E-01
A5=- 0.42686E-02
A6=0.15302E+00
A7=- 0.14624E-01
A8=- 0.32432E+00
A10=0.46890E+00
A12=- 0.39333E+00
A14=0.17111E+00
6th face
K=0.90000E+02
A3=- 0.47053E-01
A4=0.43389E-01
A5=- 0.20750E+00
A6=0.80022E-01
A7=0.12820E+00
A8=- 0.63718E-01
A10=- 0.64954E-01
A12=0.11357E+00
A14=-0.54054E-01
7th face
K=0.00000E+00
A4=- 0.86795E-01
A6=0.42711E-01
A8=- 0.46117E-01
A10=0.31680E-01
A12=0.78676E-02
A14=- 0.67256E-02
Octahedral
K=0.13035E+02
A3=0.44370E-01
A4=- 0.72759E-01
A5=0.10151E-01
A6=0.72236E-01
A7=- 0.39159E-02
A8=- 0.32565E-01
A10=- 0.78458E-02
A12=0.11949E-01
A14=- 0.35819E-02
9th face
K=- 0.42106E+01
A4=- 0.79786E-01
A6=0.80881E-01
A8=- 0.24859E-01
A10=0.32460E-02
A12=- 0.11706E-02
A14=0.18291E-03
Tenth face
K=- 0.67491E+00
A3=- 0.15527E+00
A4=0.32102E-01
A5=0.79147E-02
A6=-0.18503E-02
A7=0.79580E-03
A8=0.58211E-03
A10=- 0.89952E-05
A12=- 0.24066E-04
A14=0.19782E-05
Tenth one side
K=- 0.76364E+01
A3=- 0.84595E-01
A4=0.74896E-02
A5=- 0.64723E-02
A6=0.55090E-02
A7=- 0.53477E-04
A8=- 0.11827E-02
A10=0.11185E-03
A12=- 0.14550E-04
A14=0.21714E-05
Various data
f=3.90mm
fB=0.45mm
F=2.2
2Y'=5.867mm
TL=4.79mm
ω=35.5°
TL/2Y '=0.816
Simple lens data
【Table 1】
Claims (7)
1. a kind of taking lens, for being imaged shot object image in the shooting face of capturing element, it is characterised in that from object side by suitable
Sequence includes aperture diaphragm, the first positive lens, the second negative lens, the 3rd lens, the 4th positive lens, the 5th negative lens,
And meet following conditional (1)~(4)：
0.8≤(r2F+r2R)/(r2F-r2R)≤1.0 ... (1a)
0.8≤(r4F+r4R)/(r4F-r4R)≤1.6 ... (2)
- 1.6≤f2/f≤- 0.8 ... (3)
- 0.212≤T5/f5≤- 0.010 ... (4)
Wherein,
r2F：The radius of curvature of the side of the object of second lens,
r2R：The radius of curvature of the image side surface of second lens,
r4F：The radius of curvature of the side of the object of 4th lens,
r4R：The radius of curvature of the image side surface of 4th lens,
f2：The focal length of second lens,
f：The focal length of taking lens complete set,
T5：Thickness on the optical axis of 5th lens,
f5：The focal length of 5th lens.
2. taking lens as claimed in claim 1, it is characterised in that
Meet following conditional (5)：
0.4≦f1/f≦0.8…(5)
Wherein,
f1：The focal length of first lens,
f：The focal length of taking lens complete set.
3. taking lens as claimed in claim 1 or 2, it is characterised in that
Meet following conditional (6)：
0.15≦T1/f≦0.28…(6)
Wherein,
T1：Thickness on the optical axis of first lens,
f：The focal length of taking lens complete set.
4. such as taking lens according to any one of claims 1 to 3, it is characterised in that
The image side surface of 5th lens has the aspherical shape towards image side in optical axis upper recess surface, in the lens along optical axis
From the intersection point with optical axis towards in the case of the end of effective coverage on the contour line of section, the position tool beyond the intersection point with optical axis
There is flex point.
5. one kind shoots Optical devices, it is characterised in that
The optical image that possesses taking lens according to any one of claims 1 to 4 and will be formed on shooting face is transformed into electricity
The capturing element of signal, to set the shooting in the way of the optical image of subject is formed on the shooting face of the capturing element
Camera lens.
6. a kind of digital device, it is characterised in that
By possessing the shooting Optical devices described in claim 5, so as to addition of the still image photography of subject, Dynamic Graph
As at least one function in photography.
7. digital device as claimed in claim 6, it is characterised in that
The digital device is portable terminal device.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210560035.1A CN103885157B (en) | 2012-12-21 | 2012-12-21 | Taking lens |
| JP2013149098A JP2014123097A (en) | 2012-12-21 | 2013-07-18 | Image capturing lens |
| TW102137116A TWI487938B (en) | 2012-12-21 | 2013-10-15 | Camera lens |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210560035.1A CN103885157B (en) | 2012-12-21 | 2012-12-21 | Taking lens |
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| CN103885157B true CN103885157B (en) | 2017-07-28 |
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| JP (1) | JP2014123097A (en) |
| CN (1) | CN103885157B (en) |
| TW (1) | TWI487938B (en) |
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| JP5818866B2 (en) * | 2013-11-28 | 2015-11-18 | カンタツ株式会社 | Imaging lens |
| TWI531814B (en) | 2014-09-29 | 2016-05-01 | 大立光電股份有限公司 | Photographing lens system, image capturing device and electronic device |
| TWI537631B (en) | 2014-10-20 | 2016-06-11 | 大立光電股份有限公司 | Imaging lens system, image capturing device and electronic device |
| CN106526799B (en) * | 2016-11-28 | 2019-03-01 | 河北汉光重工有限责任公司 | A kind of high stability, high energy laser receive camera lens |
| CN106802467B (en) * | 2016-12-14 | 2019-05-28 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN106980168B (en) * | 2016-12-14 | 2019-11-19 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN106802472B (en) * | 2016-12-14 | 2019-04-26 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
| CN107167900B (en) * | 2017-07-25 | 2022-09-06 | 浙江舜宇光学有限公司 | Optical imaging lens |
| CN107678139B (en) * | 2017-10-24 | 2023-09-19 | 辽宁中蓝光电科技有限公司 | Optical system and camera lens |
| CN110007442B (en) * | 2019-05-08 | 2021-06-22 | 诚瑞光学(苏州)有限公司 | Image pickup optical lens |
| CN111929825B (en) * | 2020-09-03 | 2022-07-12 | 诚瑞光学(苏州)有限公司 | Image pickup optical lens |
| TWI768950B (en) * | 2021-06-03 | 2022-06-21 | 大立光電股份有限公司 | Photographing optical lens system, imaging apparatus and electronic device |
| CN113376816B (en) * | 2021-06-18 | 2022-05-27 | 青岛理工大学 | Aspheric surface short wave infrared lens |
| CN116026849B (en) * | 2023-02-14 | 2023-12-01 | 深圳赛陆医疗科技有限公司 | Cleanliness detection system |
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| TWI487938B (en) | 2015-06-11 |
| CN103885157A (en) | 2014-06-25 |
| TW201425990A (en) | 2014-07-01 |
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Application publication date: 20140625 Assignee: Zhejiang Shunyu Optical Co., Ltd. Assignor: Konica Minolta optical instrument (Shanghai) Co., Ltd. Contract record no.: 2015990000636 Denomination of invention: Shooting lens License type: Common License Record date: 20150915 Application publication date: 20140625 Assignee: Konica Minolta optical instrument (Shanghai) Co., Ltd. Assignor: Konica Minolta Opto, Inc. Contract record no.: 2015990000635 Denomination of invention: Shooting lens License type: Common License Record date: 20150915 |
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Assignee: Zhejiang Shunyu Optical Co., Ltd. Assignor: Konica Minolta optical instrument (Shanghai) Co., Ltd. Contract record no.: 2015990000636 Date of cancellation: 20171227 Assignee: Konica Minolta optical instrument (Shanghai) Co., Ltd. Assignor: Konica Minolta Opto, Inc. Contract record no.: 2015990000635 Date of cancellation: 20171227 |
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