CN206757159U - Optical imaging system - Google Patents
Optical imaging system Download PDFInfo
- Publication number
- CN206757159U CN206757159U CN201720400512.6U CN201720400512U CN206757159U CN 206757159 U CN206757159 U CN 206757159U CN 201720400512 U CN201720400512 U CN 201720400512U CN 206757159 U CN206757159 U CN 206757159U
- Authority
- CN
- China
- Prior art keywords
- lens
- optical axis
- imaging system
- optical
- optical imaging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012634 optical imaging Methods 0.000 title claims abstract description 206
- 230000003287 optical effect Effects 0.000 claims abstract description 362
- 238000003384 imaging method Methods 0.000 claims abstract description 133
- 230000000007 visual effect Effects 0.000 claims description 39
- 238000006073 displacement reaction Methods 0.000 claims description 35
- 210000001747 pupil Anatomy 0.000 claims description 33
- 238000007493 shaping process Methods 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 101150107467 ETP1 gene Proteins 0.000 claims description 15
- 238000009738 saturating Methods 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 101100173328 Arabidopsis thaliana ETP2 gene Proteins 0.000 claims description 9
- 230000004075 alteration Effects 0.000 description 43
- 239000000463 material Substances 0.000 description 35
- 239000004033 plastic Substances 0.000 description 31
- 229920003023 plastic Polymers 0.000 description 31
- 201000009310 astigmatism Diseases 0.000 description 14
- 238000010586 diagram Methods 0.000 description 13
- 238000001228 spectrum Methods 0.000 description 13
- 239000011521 glass Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000012937 correction Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004297 night vision Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Lenses (AREA)
Abstract
The utility model discloses an optical imaging system includes first lens, second lens, third lens and fourth lens by thing side to picture side in proper order. The first lens element with positive refractive power has a convex object-side surface. The second lens element to the third lens element have refractive power, and both surfaces of the lens elements may be aspheric. The fourth lens element with negative refractive power has a concave image-side surface, wherein both surfaces of the fourth lens element are aspheric, and at least one surface of the fourth lens element has an inflection point. The lens elements with refractive power in the optical imaging system are the first lens element to the fourth lens element. When the specific conditions are met, the optical imaging device can have larger light receiving capacity and better optical path adjusting capacity so as to improve the imaging quality.
Description
Technical field
It the utility model is related to a kind of optical imaging system, and more particularly to a kind of miniaturization applied on electronic product
Optical imaging system.
Background technology
In recent years, as the rise of the portable electronic product with camera function, the demand of optical system increasingly improve.
The photosensory assembly of general optical system is nothing more than being photosensitive coupling component (Charge Coupled Device；CCD it is) or complementary golden
Belong to oxide-semiconductor sensor (Complementary Metal-Oxide SemiconduTPor Sensor；CMOS
Sensor) two kinds, and progressing greatly with semiconductor process technique so that the Pixel Dimensions of photosensory assembly reduce, optical system by
Gradually develop toward high pixel neighborhoods, therefore the requirement to image quality also increasingly increases.
Tradition is equipped on the optical system on portable equipment, use based on two or three-chip type lens arrangement more, but by
In portable equipment constantly towards lifting pixel and terminal consumer to the demand such as low-light of large aperture and night shooting function or right
The Self-timer of for example preposition camera lens of the demand of wide viewing angle.The optical system for only designing large aperture often faces the more aberrations causes of generation
Make edge imaging quality with deterioration and manufacture the situation of difficulty, and the optical system for designing wide viewing angle can then face imaging
Aberration rate (distortion) improve, existing optical imaging system can not meet the photography requirement of higher order.
Therefore, the visual angle of the light-inletting quantity and increase optical imaging system of optical imaging system how is effectively increased, is removed into one
Step improves weigh and consider in order to uphold justice design of the total pixel of imaging with that can take into account miniaturization optical imaging system outside quality simultaneously, becomes as a phase
When important subject under discussion.
Utility model content
The utility model embodiment provides a kind of optical imaging system, can utilize the refractive powers of four lens, convex surface with
Concave surface combination (convex surface or concave surface described in the utility model refer in principle each lens thing side or image side surface on optical axis
Geometry describes), and then the visual angle of the light-inletting quantity and increase optical imaging system of optical imaging system is effectively improved, carry simultaneously
The total pixel and quality of height imaging, with applied on small-sized electronic product.
Row are as follows in detail with its code name for the term of the related mechanism assembly parameter of the utility model embodiment, as subsequent descriptions
Reference：
Fig. 7 A, 7B, 7C are refer to, optical imaging system may include an image sensing module (not illustrating), the image sensing
The photosensory assembly that module includes a substrate and is arranged on the substrate；Optical imaging system includes the first lens 710, the
Two lens 720, the 3rd lens 730 and the 4th lens 740, and there is an imaging surface 780.It may include a lens orientation component in addition
794, in hollow and any lens can be housed, and make these lens arrangements the lens orientation component includes a thing on optical axis
End 796 and one is as end 798, and close to thing side and with one first opening 7962, this is leaned on as end 798 for the thing end 796
Nearly image side and with one second opening 7982, the outer wall of lens positioning component 794 includes two sections 799, these sections
799 there is a shaping to fill mouth trace 7992 respectively.The internal diameter of foregoing first opening 7962 is OD, the internal diameter of second opening 7982
For ID, it meets following condition：0.1≦OD/ID≦10.The minimum thickness of the thing end 796 be OT and this as end 798
Minimum thickness is IT, and it meets following condition：0.1≦OT/IT≦10.
Fig. 8 A, 8B, 8C are refer to, optical imaging system may include an image sensing module (not illustrating), the image sensing
The photosensory assembly that module includes a substrate and is arranged on the substrate；Optical imaging system includes the first lens 810, the
Two lens 820, the 3rd lens 830 and the 4th lens 840, and there is an imaging surface 880.It may include a lens orientation component in addition
894, in hollow and any lens can be housed, and make these lens arrangements the lens orientation component includes a thing on optical axis
End 896 and one is as end 898, and close to thing side and with one first opening 8962, this is leaned on as end 898 for the thing end 896
Nearly image side and with one second opening 8982, the outer wall of lens positioning component 894 includes three sections 899, these sections
899 there is a shaping to fill mouth trace 8992 respectively.The internal diameter of foregoing first opening 8962 is OD, the internal diameter of second opening 8982
For ID, it meets following condition：0.1≦OD/ID≦10.The minimum thickness of the thing end 896 be OT and this as end 898
Minimum thickness is IT, and it meets following condition：0.1≦OT/IT≦10.
The term of the related lens parameter of the utility model embodiment arranges as follows, the ginseng as subsequent descriptions in detail with its code name
Examine：
With length or highly relevant lens parameter
The image height of optical imaging system is represented with HOI；The height of optical imaging system is represented with HOS；Optical imagery
The first lens thing side to the distance between the 4th lens image side surface of system is represented with InTL；4th lens of optical imaging system
Image side surface to the distance between imaging surface is represented with InB；InTL+InB=HOS；The fixed aperture (aperture) of optical imaging system is extremely
Distance between imaging surface is represented with InS；Distance between the first lens and the second lens of optical imaging system represents (example with IN12
Show)；First lens of optical imaging system are represented (illustration) in the thickness on optical axis with TP1.
The lens parameter relevant with material
The abbe number of first lens of optical imaging system is represented (illustration) with NA1；The refractive index of first lens is with Nd1
Represent (illustration).
The lens parameter relevant with visual angle
Visual angle is represented with AF；The half at visual angle is represented with HAF；Chief ray angle is represented with MRA.
The lens parameter relevant with going out entrance pupil
The entrance pupil diameter of optical imaging system is represented with HEP；The maximum effective radius of any surface of single lens
Refer to system maximum visual angle incident light by the light at entrance pupil most edge in the lens surface plotted point (Effective
Half Diameter；EHD), the vertical height between the plotted point and optical axis.Such as first lens thing side maximum effectively
Radius represents that the maximum effective radius of the first lens image side surface is represented with EHD12 with EHD11.The maximum of second lens thing side
Effective radius represents that the maximum effective radius of the second lens image side surface is represented with EHD22 with EHD21.Its in optical imaging system
The maximum effective radius representation of any surface of remaining lens is by that analogy.
The parameter relevant with lens face shape deflection depth
4th lens thing side is in the maximum effective radius position of the intersection point on optical axis to the 4th lens thing side in optical axis
Horizontal displacement distance represented (illustration) with InRS41；4th lens image side surface is in the intersection point on optical axis to the 4th lens image side surface
Maximum effective radius position represented (illustration) with InRS42 in the horizontal displacement distance of optical axis.
The parameter relevant with lens face type
Critical point C refers on certain lenses surface, and in addition to the intersection point with optical axis, one is tangent with the perpendicular section of optical axis
Point.Hold, such as the vertical range of the critical point C31 of the 3rd lens thing side and optical axis is HVT31 (illustration), the 3rd lens picture
The critical point C32 of side and the vertical range of optical axis are HVT32 (illustration), the critical point C41 and optical axis of the 4th lens thing side
Vertical range be HVT41 (illustration), the critical point C42 of the 4th lens image side surface and the vertical range of optical axis are HVT42 (examples
Show).Critical point on the thing side of other lenses or image side surface and its with the representation of the vertical range of optical axis according to foregoing.
The point of inflexion on 4th lens thing side closest to optical axis is IF411, this sinkage SGI411 (illustration),
SGI411 namely the 4th lens thing sides are in the intersection point on optical axis between the point of inflexion of the 4th nearest optical axis in lens thing side
The horizontal displacement distance parallel with optical axis, the vertical range between the IF411 points and optical axis are HIF411 (illustration).4th lens picture
The point of inflexion on side closest to optical axis is IF421, this sinkage SGI421 (illustration), SGI411 namely the 4th lens picture
Side in the intersection point on optical axis to horizontal displacement parallel with optical axis between the point of inflexion of the 4th nearest optical axis of lens image side surface away from
From the vertical range between the IF421 points and optical axis is HIF421 (illustration).
On 4th lens thing side second close to the point of inflexion of optical axis be IF412, this sinkage SGI412 (illustration),
SGI412 namely the 4th lens thing sides are in the point of inflexion of the intersection point on optical axis to the 4th lens thing side second close to optical axis
Between the horizontal displacement distance parallel with optical axis, the vertical range between the IF412 points and optical axis is HIF412 (illustration).4th is saturating
On mirror image side second close to the point of inflexion of optical axis be IF422, this sinkage SGI422 (illustration), SGI422 the namely the 4th
Lens image side surface is in the intersection point on optical axis to the 4th lens image side surface second close to parallel with optical axis between the point of inflexion of optical axis
Horizontal displacement distance, the vertical range between the IF422 points and optical axis are HIF422 (illustration).
On 4th lens thing side the 3rd close to the point of inflexion of optical axis be IF413, this sinkage SGI413 (illustration),
SGI413 namely the 4th lens thing sides are in the point of inflexion of the intersection point on optical axis to the 4th lens thing side the 3rd close to optical axis
Between the horizontal displacement distance parallel with optical axis, the vertical range between the IF4132 points and optical axis is HIF413 (illustration).4th
On lens image side surface the 3rd close to the point of inflexion of optical axis be IF423, this sinkage SGI423 (illustration), SGI423 namely
Four lens image side surfaces are in the intersection point on optical axis to the 4th lens image side surface the 3rd close to parallel with optical axis between the point of inflexion of optical axis
Horizontal displacement distance, the vertical range between the IF423 points and optical axis is HIF423 (illustration).
On 4th lens thing side the 4th close to the point of inflexion of optical axis be IF414, this sinkage SGI414 (illustration),
SGI414 namely the 4th lens thing sides are in the point of inflexion of the intersection point on optical axis to the 4th lens thing side the 4th close to optical axis
Between the horizontal displacement distance parallel with optical axis, the vertical range between the IF414 points and optical axis is HIF414 (illustration).4th is saturating
On mirror image side the 4th close to the point of inflexion of optical axis be IF424, this sinkage SGI424 (illustration), SGI424 the namely the 4th
Lens image side surface is in the intersection point on optical axis to the 4th lens image side surface the 4th close to parallel with optical axis between the point of inflexion of optical axis
Horizontal displacement distance, the vertical range between the IF424 points and optical axis are HIF424 (illustration).
The point of inflexion on other lenses thing side or image side surface and its expression with the vertical range of optical axis or its sinkage
Mode is according to foregoing.
The parameter relevant with aberration
The optical distortion (Optical Distortion) of optical imaging system is represented with ODT；Its TV distortion (TV
Distortion) represented with TDT, and can further limit what description aberration between 50% to 100% visual field is imaged was offset
Degree；Spherical aberration offset amount is represented with DFS；Comet aberration offset is represented with DFC.
Modulation transfer function performance plot (the Modulation Transfer Function of optical imaging system；MTF), use
Carry out the contrast contrast and sharpness of test and evaluation system imaging.The vertical coordinate axle expression pair of modulation transfer function performance plot
Than the rate of transform (numerical value is from 0 to 1), horizontal axis then representation space frequency (cycle/millimeter (cycles/mm)；Line is right/millimeter
(lp/mm, line pairs per mm)).Perfect imaging system in theory can the 100% lines contrast for being presented subject,
But actual imaging system, the contrast transfer rate score of its vertical axis are less than 1.In addition, it is however generally that the fringe region of imaging
Fine reduction degree can be more difficult to get than central area.Visible light spectrum is on imaging surface, optical axis, 0.3 visual field and 0.7 visual field
Three are represented with MTFE0, MTFE3 and MTFE7 respectively in the spatial frequency 55cycles/mm contrast rates of transform (MTF numerical value),
Optical axis, 0.3 visual field and 0.7 visual field three be in the spatial frequency 110cycles/mm contrast rate of transform (MTF numerical value) respectively with
MTFQ0, MTFQ3 and MTFQ7 represent that optical axis, 0.3 visual field and 0.7 visual field three are in spatial frequency 220cycles/mm's
The contrast rate of transform (MTF numerical value) is represented with MTFH0, MTFH3 and MTFH7 respectively, at optical axis, 0.3 visual field and 0.7 visual field three
Represented respectively with MTF0, MTF3 and MTF7 in the spatial frequency 440cycles/mm contrast rate of transform (MTF numerical value), it is foregoing this
Three visual fields are representative for the center of camera lens, interior visual field and outer visual field, therefore can be used to evaluate particular optical imaging
Whether the performance of system is excellent.If the design department respective pixel size (Pixel Size) of optical imaging system is containing 1.12 microns
Following photosensory assembly, therefore the quarter spaces frequency of modulation transfer function performance plot, half spatial frequency (half
Frequently) and complete space frequency (full range) is at least 110cycles/mm, 220cycles/mm and 440cycles/mm respectively.
If optical imaging system must meet the imaging for infrared spectrum simultaneously, such as be needed for the night vision of low light source
Ask, used operation wavelength can be 850nm or 800nm, the object wheel formed by major function in identification black and white light and shade
Exterior feature, without high-resolution, therefore it can only need to select the spatial frequency evaluation particular optical imaging system less than 110cycles/mm
It is whether excellent in the performance of infrared spectrum frequency spectrum.Aforementioned operation wavelength 850nm when focusing on imaging surface, image in optical axis,
0.3 visual field and 0.7 visual field three be in the spatial frequency 55cycles/mm contrast rate of transform (MTF numerical value) respectively with MTFI0,
MTFI3 and MTFI7 is represented.However, also because infrared ray operation wavelength 850nm or 800nm and general visible wavelength gap
It is far, if optical imaging system needs to focus to visible ray and infrared ray (bimodulus) and respectively reaches certain performance simultaneously, setting
There is suitable difficulty on meter.
The utility model provides a kind of optical imaging system, can be simultaneously to visible ray and infrared ray (bimodulus) focusing and difference
Reach certain performance, and the thing side of its 4th lens or image side surface are provided with the point of inflexion, and it is incident can effectively to adjust each visual field
It is corrected in the angle of the 4th lens, and for optical distortion and TV distortion.In addition, the surface of the 4th lens can possess more preferably
Optical path adjusting ability, to lift image quality.
A kind of optical imaging system is provided according to the utility model, one first lens are included by thing side to image side successively, is had
There is refracting power；One second lens, there is refracting power；One the 3rd lens, there is refracting power；One the 4th lens, there is refracting power；One
Imaging surface；And a lens positioning component, wherein the lens positioning component is in hollow and can house any lens, and make above-mentioned
Lens arrangement is on optical axis, and the lens positioning component includes a thing end and one as end, and the thing end is close to thing side
And with one first opening, described to be open as end close to image side and with one second, the outer wall bag of the lens positioning component
At least two sections are included, there is at least one shaping to fill mouth trace respectively in above-mentioned section, and the optical imaging system has flexion
The lens of power are four pieces, and first lens at least one piece of lens into the 4th lens have a positive refracting power, described first
The focal length of lens to the 4th lens is respectively f1, f2, f3, f4, and the focal length of the optical imaging system is f, the optics
The entrance pupil diameter of imaging system is HEP, and the first lens thing side to the imaging surface is in having a distance on optical axis
HOS, the first lens thing side to the 3rd lens image side surface is in having a distance InTL, the optical imagery on optical axis
The half of the maximum visual angle of system is HAF, first lens, second lens, the 3rd lens and described
4th lens in 1/2HEP height and are respectively ETP1, ETP2, ETP3 and ETP4 parallel to the thickness of optical axis, and foregoing ETP1 is extremely
ETP4 summation is SETP, and first lens, second lens, the 3rd lens and the 4th lens are in optical axis
Thickness be respectively TP1, TP2, TP3 and TP4, foregoing TP1 to TP4 summation is STP, and it meets following condition：1≦f/
HEP≦10；0deg<HAF≤150deg and 0.5≤SETP/STP<1.
Preferably, the outer wall of the lens positioning component includes at least three sections, and above-mentioned section has extremely respectively
A few shaping fills mouth trace.
Preferably, first lens in 1/2HEP height and are ETP1 parallel to the thickness of optical axis, second lens
In 1/2HEP height and be ETP2 parallel to the thickness of optical axis, the 3rd lens are in 1/2HEP highly and parallel to the thickness of optical axis
It in 1/2HEP height and is ETP4 parallel to the thickness of optical axis to spend for ETP3, the 4th lens, and foregoing ETP1's to ETP4 is total
With for SETP, on the first lens thing side on coordinate points to the 4th lens image side surface of 1/2HEP height in 1/
Horizontal range between the coordinate points of 2HEP height parallel to optical axis is EIN, and it meets following equation：0.3≦SETP/EIN<1.
Preferably, the optical imaging system includes a filtering assembly, the filtering assembly be located at the 4th lens with
And between the imaging surface, on the 4th lens image side surface in 1/2HEP height coordinate points to parallel between the filtering assembly
In the distance of optical axis be EIR, on the 4th lens image side surface with the intersection point of optical axis between the filtering assembly parallel to optical axis
Distance be PIR, it meets following equation：0.1≦EIR/PIR≦1.1.
Preferably, it is seen that optical axis, 0.3HOI and 0.7HOI tri- of the light on the imaging surface are in spatial frequency
The 55cycles/mm modulation conversion contrast rate of transform represents that it meets following condition with MTFE0, MTFE3 and MTFE7 respectively：
MTFE0≧0.2；MTFE3≧0.01；And MTFE7≤0.01.
Preferably, on the 3rd lens image side surface in 1/2HEP height coordinate points between the imaging surface parallel to light
The horizontal range of axle is EBL, on the 4th lens image side surface with the water of the intersection point of optical axis to the imaging surface parallel to optical axis
Flat distance is BL, and it meets following equation：0.1≦EBL/BL≦1.5.
Preferably, in addition to an aperture, and the aperture to the imaging surface in having a distance InS on optical axis, its
Meet following equation：0.2≦InS/HOS≦1.1.
A kind of optical imaging system is separately provided according to the utility model, one first lens are included by thing side to image side successively,
With refracting power；One second lens, there is refracting power；One the 3rd lens, there is refracting power；One the 4th lens, there is refracting power；
One imaging surface；And a lens positioning component, wherein the lens positioning component is in hollow and can house any lens, and make
Lens arrangement is stated on optical axis, the lens positioning component includes a thing end and one as end, and the thing end is close to thing
Side and with one first opening, it is described as end close to image side and with one second opening, the outer wall of the lens positioning component
Including at least two sections, there is at least one shaping to fill mouth trace respectively in above-mentioned section, and the optical imaging system, which has, bends
The lens for rolling over power are four pieces and a respective at least surface for first lens at least one piece lens into the 4th lens
With an at least point of inflexion, second lens at least one piece of lens into the 4th lens have a positive refracting power, and described
The focal length of one lens to the 4th lens is respectively f1, f2, f3, f4, and the focal length of the optical imaging system is f, the light
The entrance pupil diameter for learning imaging system be HEP, the first lens thing side to the imaging surface on optical axis with one away from
From HOS, the first lens thing side to the 3rd lens image side surface in having a distance InTL on optical axis, the optics into
As the half of the maximum visual angle of system is HAF, on the first lens thing side in 1/2HEP height coordinate points to institute
The horizontal range stated between imaging surface parallel to optical axis is ETL, in the coordinate points of 1/2HEP height on the first lens thing side
Horizontal range on to the 4th lens image side surface parallel to optical axis between the coordinate points of 1/2HEP height is EIN, and it meets
Following condition：1.0≦f/HEP≦10.0；0deg<HAF≤150deg and 0.2≤EIN/ETL<1.
Preferably, the outer wall of the lens positioning component includes at least three sections, and above-mentioned section has extremely respectively
A few shaping fills mouth trace.
Preferably, on coordinate points to the 4th lens thing side of 1/2HEP height on the 3rd lens image side surface
Horizontal range parallel to optical axis between the coordinate points of 1/2HEP height is ED34, the 3rd lens and the 4th lens it
Between in the distance on optical axis be IN34, it meets following condition：0<ED34/IN34≦50.
Preferably, on coordinate points to the second lens thing side of 1/2HEP height on the first lens image side surface
Horizontal range parallel to optical axis between the coordinate points of 1/2HEP height is ED12, first lens and second lens it
Between in the distance on optical axis be IN12, it meets following condition：0<ED12/IN12≦35.
Preferably, the 4th lens in 1/2HEP height and are ETP4 parallel to the thickness of optical axis, the 4th lens
It is TP4 in the thickness on optical axis, it meets following condition：0.1≦ETP4/TP4≦5.
Preferably, it is IN12 in the distance on optical axis between first lens and second lens, and meets following
Formula：0<IN12/f≦60.
Preferably, it is seen that optical axis, 0.3HOI and 0.7HOI tri- of the light on the imaging surface are in spatial frequency
The 110cycles/mm modulation conversion contrast rate of transform represents that it meets following bar with MTFQ0, MTFQ3 and MTFQ7 respectively
Part：MTFQ0≧0.2；MTFQ3≧0.01；And MTFQ7≤0.01.
Preferably, at least one piece in first lens, second lens, the 3rd lens and the 4th lens
Lens are that light of the wavelength less than 500nm filters out component.
A kind of optical imaging system is provided again according to the utility model, and one first lens are included by thing side to image side successively,
With refracting power；One second lens, there is refracting power；One the 3rd lens, there is refracting power；One the 4th lens, there is refracting power；
An and imaging surface；And a lens positioning component, wherein the lens positioning component is in hollow and can house any lens, and
Said lens are made to be arranged on optical axis, the lens positioning component includes a thing end and one as end, and the thing end is leaned on
Nearly thing side and with one first opening, it is described as end close to image side and with one second opening, the lens positioning component
Outer wall includes at least three sections, and there is at least one shaping to fill mouth trace, the optical imaging system tool respectively in above-mentioned section
The lens for having refracting power are four pieces, and the focal lengths of first lens to the 4th lens is respectively f1, f2, f3, f4, the light
The focal length for learning imaging system is f, and the entrance pupil diameter of the optical imaging system is HEP, and the first lens thing side is extremely
The imaging surface is in having a distance HOS on optical axis, the first lens thing side to the 3rd lens image side surface is in optical axis
Upper to have a distance InTL, the half of the maximum visual angle of the optical imaging system is HAF, the first lens thing side
On in coordinate points to the horizontal range between the imaging surface parallel to optical axis of 1/2HEP height be ETL, the first lens thing
On side on coordinate points to the 4th lens image side surface of 1/2HEP height between the coordinate points of 1/2HEP height parallel to
The horizontal range of optical axis is EIN, and it meets following condition：1.0≦f/HEP≦10；0deg<HAF≤100deg and 0.2≤
EIN/ETL<1。
Preferably, on the 3rd lens image side surface in 1/2HEP height coordinate points between the imaging surface parallel to light
The horizontal range of axle is EBL, on the 4th lens image side surface with the water of the intersection point of optical axis to the imaging surface parallel to optical axis
Flat distance is BL, and it meets following equation：0.1≦EBL/BL≦1.5.
Preferably, the optical imaging system meets following equation：0mm<HOS≦50mm.
Preferably, the optical imaging system also includes an aperture, an imaging sensor and a drive module, the figure
As sensor is arranged at the imaging surface, and the aperture to the imaging surface in having a distance InS, the drive on optical axis
Dynamic model block can be coupled with each lens and each lens is produced displacement, and it meets following equation：0.2≦InS/HOS
≦1.1。
Single lens especially influence 1/2 entrance pupil diameter in the thickness of 1/2 entrance pupil diameter (HEP) height
(HEP) ability for correcting optical path difference between aberration and each field rays of each light visual field shared region, thickness are bigger in the range of
The capability improving of aberration is then corrected, but can also increase the degree of difficulty on manufacturing simultaneously, it is therefore necessary to controls single lens
In the thickness of 1/2 entrance pupil diameter (HEP) height, the lens are particularly controlled in 1/2 entrance pupil diameter (HEP) height
Proportionate relationship (ETP/TP) of the lens between the thickness (TP) on optical axis belonging to thickness (ETP) and the surface.Such as first
Lens are represented in the thickness of 1/2 entrance pupil diameter (HEP) height with ETP1.Second lens are at 1/2 entrance pupil diameter (HEP)
The thickness of height is represented with ETP2.In optical imaging system remaining lens 1/2 entrance pupil diameter (HEP) height thickness,
Its representation is by that analogy.Foregoing ETP1 to ETP4 summation is SETP, and embodiment of the present utility model can meet following public affairs
Formula：0.3≦SETP/EIN<1.
To weigh the ability of lifting amendment aberration simultaneously and reducing the degree of difficulty on manufacturing, it need to especially control this saturating
Thickness (ETP) and lens proportionate relationship in thickness (TP) optical axis between of the mirror in 1/2 entrance pupil diameter (HEP) height
(ETP/TP).Such as first lens in the thickness of 1/2 entrance pupil diameter (HEP) height represent that the first lens are in light with ETP1
Thickness on axle is TP1, and ratio between the two is ETP1/TP1.Thickness of second lens in 1/2 entrance pupil diameter (HEP) height
Degree represents that the second lens are TP2 in the thickness on optical axis, and ratio between the two is ETP2/TP2 with ETP2.Optical imaging system
In remaining lens 1/2 entrance pupil diameter (HEP) height ratio between the thickness (TP) on optical axis of thickness and the lens
Relation, its representation is by that analogy.Embodiment of the present utility model can meet following equation：0.1≦ETP/TP≦5.
Adjacent two lens represent in the horizontal range of 1/2 entrance pupil diameter (HEP) height with ED, aforementioned levels distance
(ED) parallel to the optical axis of optical imaging system, and each light visual field in 1/2 entrance pupil diameter (HEP) position is especially influenceed
The ability of optical path difference between the amendment aberration of shared region and each field rays, the more big ability for then correcting aberration of horizontal range
Possibility will be lifted, but the length that can also increase the degree of difficulty on manufacturing and limitation optical imaging system simultaneously is " micro-
The degree of contracting ", it is therefore necessary to control the lens of special neighbourhood two in the horizontal range (ED) of 1/2 entrance pupil diameter (HEP) height.
To weigh the degree of difficulty of the length " micro " of the ability of lifting amendment aberration and reduction optical imaging system simultaneously,
Adjacent two lens need to especially be controlled in horizontal range (ED) two lens adjacent with this of 1/2 entrance pupil diameter (HEP) height
Proportionate relationship (ED/IN) between the horizontal range (IN) on optical axis.Such as first lens and the second lens in 1/2 entrance pupil
The horizontal range of diameter (HEP) height represents with ED12, and the first lens and the second lens are IN12 in the horizontal range on optical axis,
Ratio between the two is ED12/IN12.Second lens and the 3rd lens 1/2 entrance pupil diameter (HEP) height it is horizontal away from
Represented from ED23, the second lens and the 3rd lens are IN23 in the horizontal range on optical axis, and ratio between the two is ED23/
IN23.Adjacent two lens of remaining in optical imaging system are adjacent with this in the horizontal range of 1/2 entrance pupil diameter (HEP) height
Proportionate relationship of two lens in the horizontal range on optical axis between the two, its representation is by that analogy.
On 4th lens image side surface in 1/2HEP height coordinate points between the imaging surface parallel to optical axis it is horizontal away from
With the intersection point of optical axis to the imaging surface parallel to the horizontal range of optical axis it is BL on the 4th lens image side surface from for EBL, this reality
With new embodiment to weigh the ability of lifting amendment aberration simultaneously and reserving the receiving space of other optical modules, can expire
Sufficient following equation：0.1≦EBL/BL≦1.5.
Optical imaging system can also include a filtering assembly, and the filtering assembly is located at the 4th lens and the imaging surface
Between, coordinate points to the distance between the filtering assembly parallel to optical axis on the 4th lens image side surface in 1/2HEP height is EIR,
It is PIR with intersection point to the distance between the filtering assembly parallel to optical axis of optical axis on 4th lens image side surface, the utility model
Embodiment can meet following equation：0.1≦EIR/PIR≦1.1.
Aforementioned optical imaging system can be used to collocation and be imaged on catercorner length as the image biography below 1/1.2 inch of size
Sensor, the size of the imaging sensor are preferably 1/2.3 inch, and the Pixel Dimensions of the imaging sensor are less than 1.4 microns of (μ
M), it is preferred that its Pixel Dimensions is less than 1.12 microns (μm), most preferably, its Pixel Dimensions is less than 0.9 micron (μm).In addition, should
Optical imaging system is applicable to length-width ratio as 16：9 imaging sensor.
Aforementioned optical imaging system be applicable to it is more than million or ten million pixel camera requirement (such as 4K2K or
UHD, QHD) and possess good image quality.
As │ f1 │>During f4, the system total height (HOS of optical imaging system；Height of Optic System) can be with
It is appropriate to shorten to reach the purpose of miniaturization.
As │ f2 │+│ f3 │>During │ f1 │+│ f4 │, by the second lens into the 3rd lens at least one piece of lens have it is weak
Positive refracting power or weak negative refracting power.Alleged weak refracting power, refer to that the absolute value of the focal length of certain lenses is more than 10.When this practicality
Into the 3rd lens, at least one piece of lens has weak positive refracting power to new second lens, and it can effectively share the first lens just
Refracting power and avoid unnecessary aberration from occurring too early, if otherwise the second lens at least one piece of lens into the 3rd lens have it is weak
Negative refracting power, then can finely tune the aberration of correction system.
4th lens can have negative refracting power, and its image side surface can be concave surface.Thereby, be advantageous to shorten its back focal length to maintain
Miniaturization.In addition, an at least surface for the 4th lens can have an at least point of inflexion, it can effectively suppress off-axis field rays and enter
The angle penetrated, further can modified off-axis visual field aberration.
Brief description of the drawings
The above-mentioned and other feature of the utility model will describe in detail by referring to accompanying drawing.
Figure 1A shows the schematic diagram of the optical imaging system of the utility model first embodiment；
Figure 1B sequentially show from left to right the spherical aberration of the optical imaging system of the utility model first embodiment, astigmatism with
And the curve map of optical distortion；
Fig. 1 C show the visible light spectrum modulation conversion characteristic pattern of the utility model first embodiment optical imaging system；
Fig. 2A shows the schematic diagram of the optical imaging system of the utility model second embodiment；
Fig. 2 B sequentially show from left to right the spherical aberration of the optical imaging system of the utility model second embodiment, astigmatism with
And the curve map of optical distortion；
Fig. 2 C show the visible light spectrum modulation conversion characteristic pattern of the utility model second embodiment optical imaging system；
Fig. 3 A show the schematic diagram of the optical imaging system of the utility model 3rd embodiment；
Fig. 3 B sequentially show from left to right the spherical aberration of the optical imaging system of the utility model 3rd embodiment, astigmatism with
And the curve map of optical distortion；
Fig. 3 C show the visible light spectrum modulation conversion characteristic pattern of the utility model 3rd embodiment optical imaging system；
Fig. 4 A show the schematic diagram of the optical imaging system of the utility model fourth embodiment；
Fig. 4 B sequentially show from left to right the spherical aberration of the optical imaging system of the utility model fourth embodiment, astigmatism with
And the curve map of optical distortion；
Fig. 4 C show the visible light spectrum modulation conversion characteristic pattern of the utility model fourth embodiment optical imaging system；
Fig. 5 A show the schematic diagram of the optical imaging system of the embodiment of the utility model the 5th；
Fig. 5 B sequentially show from left to right the spherical aberration of the optical imaging system of the embodiment of the utility model the 5th, astigmatism with
And the curve map of optical distortion；
Fig. 5 C show the visible light spectrum modulation conversion characteristic pattern of the embodiment optical imaging system of the utility model the 5th；
Fig. 6 A show the schematic diagram of the optical imaging system of the utility model sixth embodiment；
Fig. 6 B sequentially show from left to right the spherical aberration of the optical imaging system of the utility model sixth embodiment, astigmatism with
And the curve map of optical distortion；
Fig. 6 C show the visible light spectrum modulation conversion characteristic pattern of the utility model sixth embodiment optical imaging system.
Fig. 7 A show the three-dimensional side view of the lens positioning component of the utility model first embodiment；
Fig. 7 B show the top view of the lens positioning component of the utility model first embodiment, and overlook direction is from as end
The second opening towards the first opening of thing end, the outer wall of the lens positioning component has two sections, these sections
There is a shaping to fill mouth trace respectively；
Fig. 7 C show the profile of the lens positioning component of the utility model first embodiment；
Fig. 8 A show the utility model second embodiment to the three-dimensional side view of the lens positioning component of sixth embodiment；
Fig. 8 B show that the utility model second embodiment to the top view of the lens positioning component of sixth embodiment, is overlooked
First opening of the direction from the second opening as end towards thing end, the outer wall of the lens positioning component have three and cut flat with
There is a shaping to fill mouth trace respectively for face, these sections；
Fig. 8 C show the utility model second embodiment to the profile of the lens positioning component of sixth embodiment.
Description of reference numerals
Optical imaging system：10、20、30、40、50、60
Aperture：100、200、300、400、500、600
First lens：110、210、310、410、510、610、710、810
Thing side：112、212、312、412、512、612
Image side surface：114、214、314、414、514、614
Second lens：120、220、320、420、520、620、720、820
Thing side：122、222、322、422、522、622
Image side surface：124、224、324、424、524、624
3rd lens：130、230、330、430、530、630、730、830
Thing side：132、232、332、432、532、632
Image side surface：134、234、334、434、534、634
4th lens：140、240、340、440、540、640、740、840
Thing side：142、242、342、442、542、642
Image side surface：144、244、344、444、544、644
Infrared filter：170、270、370、470、570、670
Imaging surface：180、280、380、480、580、680、780、880
Imaging sensor：190、290、390、490、590、690
Lens orientation component：794、894
Thing end：796、896
As end：798、898
First opening：7962、8962
Second opening：7982、8982
Section：799、899
Shaping fills mouth trace：7992、8992
The focal length of optical imaging system：f
The focal length of first lens：f1；The focal length of second lens：f2；The focal length of 3rd lens：f3；
The focal length of 4th lens：f4
The f-number of optical imaging system：f/HEP；Fno；F#
The half at the maximum visual angle of optical imaging system：HAF
The abbe number of first lens：NA1
The abbe number of second lens to the 4th lens：NA2、NA3、NA4
First lens thing side and the radius of curvature of image side surface：R1、R2
Second lens thing side and the radius of curvature of image side surface：R3、R4
3rd lens thing side and the radius of curvature of image side surface：R5、R6
4th lens thing side and the radius of curvature of image side surface：R7、R8
First lens are in the thickness on optical axis：TP1
Second lens to the 4th lens are in the thickness on optical axis：TP2、TP3、TP4
The thickness summation of the lens of all tool refracting powers：ΣTP
First lens and the second lens are in the spacing distance on optical axis：IN12
Second lens and the 3rd lens are in the spacing distance on optical axis：IN23
3rd lens and the 4th lens are in the spacing distance on optical axis：IN34
4th lens thing side is in the maximum effective radius position of the intersection point on optical axis to the 4th lens thing side in optical axis
Horizontal displacement distance：InRS41
Closest to the point of inflexion of optical axis on 4th lens thing side：IF411；The sinkage：SGI411
Closest to the vertical range between the point of inflexion of optical axis and optical axis on 4th lens thing side：HIF411
Closest to the point of inflexion of optical axis on 4th lens image side surface：IF421；The sinkage：SGI421
Closest to the vertical range between the point of inflexion of optical axis and optical axis on 4th lens image side surface：HIF421
On 4th lens thing side second close to optical axis the point of inflexion：IF412；The sinkage：SGI412
4th lens thing side second is close to the vertical range between the point of inflexion of optical axis and optical axis：HIF412
On 4th lens image side surface second close to optical axis the point of inflexion：IF422；The sinkage：SGI422
4th lens image side surface second is close to the vertical range between the point of inflexion of optical axis and optical axis：HIF422
On 4th lens thing side the 3rd close to optical axis the point of inflexion：IF413；The sinkage：SGI413
4th lens thing side the 3rd is close to the vertical range between the point of inflexion of optical axis and optical axis：HIF413
On 4th lens image side surface the 3rd close to optical axis the point of inflexion：IF423；The sinkage：SGI423
4th lens image side surface the 3rd is close to the vertical range between the point of inflexion of optical axis and optical axis：HIF423
On 4th lens thing side the 4th close to optical axis the point of inflexion：IF414；The sinkage：SGI414
4th lens thing side the 4th is close to the vertical range between the point of inflexion of optical axis and optical axis：HIF414
On 4th lens image side surface the 4th close to optical axis the point of inflexion：IF424；The sinkage：SGI424
4th lens image side surface the 4th is close to the vertical range between the point of inflexion of optical axis and optical axis：HIF424
The critical point of 4th lens thing side：C41；The critical point of 4th lens image side surface：C42
The critical point of 4th lens thing side and the horizontal displacement distance of optical axis：SGC41
The critical point of 4th lens image side surface and the horizontal displacement distance of optical axis：SGC42
The critical point of 4th lens thing side and the vertical range of optical axis：HVT41
The critical point of 4th lens image side surface and the vertical range of optical axis：HVT42
System total height (the first lens thing side to imaging surface is in the distance on optical axis)：HOS
The catercorner length of imaging sensor：Dg；Aperture to imaging surface distance：InS
The distance of first lens thing side to the 4th lens image side surface：InTL
4th lens image side surface to imaging surface distance：InB
The half (maximum image height) of the effective sensing region diagonal line length of imaging sensor：HOI
TV of optical imaging system when imaging distorts (TVDistortion)：TDT
Optical distortion (Optical Distortion) of optical imaging system when imaging：ODT
Embodiment
A kind of optical imaging system, by first lens of the thing side to image side successively including tool refracting power, the second lens, the 3rd
Lens and the 4th lens.Optical imaging system may also include an imaging sensor, and it is arranged at imaging surface.
Three operation wavelengths can be used to be designed for optical imaging system, respectively 486.1nm, 587.5nm, 656.2nm,
Wherein 587.5nm is the reference wavelength that main reference wavelength is main extractive technique feature.Optical imaging system can also be used five
Operation wavelength is designed, respectively 470nm, 510nm, 555nm, 610nm, 650nm, and wherein 555nm is that main reference wavelength is
The reference wavelength of main extractive technique feature.
The focal length f of optical imaging system and the focal length fp per a piece of lens with positive refracting power ratio are PPR, optics
The focal length f of imaging system and the focal length fn per a piece of lens with negative refracting power ratio are NPR, all positive refracting powers of tool
The PPR summations of lens are Σ PPR, and the NPR summations of the lens of all negative refracting powers of tool are Σ NPR, are had when meeting following condition
Help control the total refracting power and total length of optical imaging system：0.5≤Σ PPR/ │ Σ NPR │≤4.5, it is preferred that can expire
Foot row condition：1≦ΣPPR/│ΣNPR│≦3.5.
The system altitude of optical imaging system is HOS, when HOS/f ratios level off to 1 when, be beneficial to make miniaturization and
The optical imaging system of very-high solution can be imaged.
The focal length fp of every a piece of lens with positive refracting power of optical imaging system summation is Σ PP, is had per a piece of
The focal length summation of the lens of negative refracting power is Σ NP, and a kind of embodiment of optical imaging system of the present utility model, it meets
Following condition：0<ΣPP≦200；And f1/ Σ PP≤0.85.It is preferred that following condition can be met：0<ΣPP≦150；And
0.01≦f1/ΣPP≦0.7.Thereby, the focusing power of control optical imaging system is contributed to, and appropriate distribution system is just
Refracting power is produced too early with suppressing significant aberration.
First lens can have positive refracting power, and its thing side can be convex surface.Thereby, just bending for the first lens can suitably be adjusted
Force intensity is rolled over, helps to shorten the total length of optical imaging system.
Second lens can have negative refracting power.Thereby, aberration caused by the lens of recoverable first.
3rd lens can have positive refracting power.Thereby, the positive refracting power of the first lens can be shared.
4th lens can have negative refracting power, and its image side surface can be concave surface.Thereby, be advantageous to shorten its back focal length to maintain
Miniaturization.In addition, an at least surface for the 4th lens can have an at least point of inflexion, it can effectively suppress off-axis field rays and enter
The angle penetrated, further can modified off-axis visual field aberration.It is preferred that its thing side and image side surface are respectively provided with an at least contrary flexure
Point.
Optical imaging system can also include an imaging sensor, and it is arranged at imaging surface.The effective sensing area of imaging sensor
The half (being the image height of optical imaging system or maximum image height) of domain diagonal line length is HOI, the first lens thing side
In the distance on optical axis it is HOS to imaging surface, it meets following condition：HOS/HOI≦3；And 0.5≤HOS/f≤3.0.Compared with
Goodly, following condition can be met：1≦HOS/HOI≦2.5；And 1≤HOS/f≤2.Thereby, optical imaging system can be maintained
Miniaturization, to be equipped on frivolous portable electronic product.
In addition, in optical imaging system of the present utility model, an at least aperture can be set on demand, to reduce veiling glare,
Help to lift picture quality.
In optical imaging system of the present utility model, aperture configuration can be preposition aperture or in put aperture, wherein preposition light
Circle implies that aperture is arranged between object and the first lens, in put aperture and then represent that aperture is arranged at the first lens and imaging surface
Between.If aperture is preposition aperture, the emergent pupil of optical imaging system and imaging surface can be made to produce longer distance and house more light
Component is learned, and the efficiency that imaging sensor receives image can be increased；Aperture is put if in, then contributes to the visual field of expansion system
Angle, make optical imaging system that there is the advantage of wide-angle lens.Foregoing aperture to the distance between imaging surface is InS, and it meets following
Condition：0.2≦InS/HOS≦1.1.It is preferred that following condition can be met：0.8≤InS/HOS≤1 thereby, can take into account dimension simultaneously
Hold the miniaturization of optical imaging system and possess the characteristic of wide-angle.
In optical imaging system of the present utility model, the first lens thing side to the distance between the 4th lens image side surface is
InTL, in the thickness summation Σ TP of the lens of all tool refracting powers on optical axis, it meets following condition：0.45≦ΣTP/InTL
≦0.95.It is preferred that following condition can be met：0.6≦ΣTP/InTL≦0.9.Thereby, when system imaging can be taken into account simultaneously
Contrast and the yield of lens manufacture simultaneously provide appropriate back focal length to house other assemblies.
The radius of curvature of first lens thing side is R1, and the radius of curvature of the first lens image side surface is R2, and it meets following
Condition：0.01≦│R1/R2│≦0.5.Thereby, the first lens possesses appropriate positive flexion force intensity, avoids spherical aberration increase from overrunning.
It is preferred that following condition can be met：0.01≦│R1/R2│≦0.4.
The radius of curvature of 4th lens thing side is R7, and the radius of curvature of the 4th lens image side surface is R8, and it meets following
Condition：-200<(R7-R8)/(R7+R8)<30.Thereby, be advantageous to correct astigmatism caused by optical imaging system.
First lens and the second lens are IN12 in the spacing distance on optical axis, and it meets following condition：0<IN12/f≦
60.It is preferred that following condition can be met：0.01≦IN12/f≦0.20.Thereby, the aberration for contributing to improve lens is to lift it
Performance.
Second lens and the 3rd lens are IN23 in the spacing distance on optical axis, and it meets following condition：0<IN23/f≦
0.25.It is preferred that following condition can be met：0.01≦IN23/f≦0.20.Thereby, the performance of improvement lens is contributed to.
3rd lens and the 4th lens are IN34 in the spacing distance on optical axis, and it meets following condition：0<IN34/f≦
0.25.It is preferred that following condition can be met：0.001≦IN34/f≦0.20.Thereby, the performance of improvement lens is contributed to.
First lens and the second lens are respectively TP1 and TP2 in the thickness on optical axis, and it meets following condition：1≦
(TP1+IN12)/TP2≦10.Thereby, contribute to control the susceptibility of optical imaging system manufacture and lift its performance.
3rd lens and the 4th lens are respectively TP3 and TP4 in the thickness on optical axis, and foregoing two lens are on optical axis
Spacing distance is IN34, and it meets following condition：0.2≦(TP4+IN34)/TP4≦3.Thereby, contribute to control optical imagery
The susceptibility of system manufacture simultaneously reduces system total height.
Second lens and the 3rd lens are IN23 in the spacing distance on optical axis, and the first lens to the 4th lens are on optical axis
Summation distance be Σ TP, it meets following condition：0.01≦IN23/(TP2+IN23+TP3)≦0.5.It is preferred that it can meet
Following condition：0.05≦IN23/(TP2+IN23+TP3)≦0.4.Thereby help and correct incident light traveling process institute a little layer by layer
Caused aberration simultaneously reduces system total height.
In optical imaging system of the present utility model, the 4th lens thing side 142 is in the intersection point on optical axis to the 4th lens
The maximum effective radius position of thing side 142 in optical axis horizontal displacement distance for InRS41 (if horizontal displacement towards image side,
InRS41 be on the occasion of；If horizontal displacement, towards thing side, InRS41 is negative value), the 4th lens image side surface 144 is in the intersection point on optical axis
In the horizontal displacement distance of optical axis it is InRS42 to the maximum effective radius position of the 4th lens image side surface 144, the 4th lens 140
It is TP4 in the thickness on optical axis, it meets following condition：-1mm≦InRS41≦1mm；-1mm≦InRS42≦1mm；1mm≦│
InRS41│+│InRS42│≦2mm；0.01≦│InRS41│/TP4≦10；0.01≦│InRS42│/TP4≦10.Thereby, it is controllable
Make maximum effective radius position between the 4th lens two sides, and contribute to the peripheral field of optical imaging system lens error correction and
Effectively maintain its miniaturization.
In optical imaging system of the present utility model, the 4th lens thing side is in the intersection point on optical axis to the 4th lens thing side
The horizontal displacement distance parallel with optical axis represents that the 4th lens image side surface is in light with SGI411 between the point of inflexion of the nearest optical axis in face
Intersection point on axle to horizontal displacement distance parallel with optical axis between the point of inflexion of the 4th nearest optical axis of lens image side surface with
SGI421 represents that it meets following condition：0<SGI411/(SGI411+TP4)≦0.9；0<SGI421/(SGI421+TP4)≦
0.9.It is preferred that following condition can be met：0.01<SGI411/(SGI411+TP4)≦0.7；0.01<SGI421/(SGI421+
TP4)≦0.7。
4th lens thing side is in the intersection point on optical axis to the 4th lens thing side second close between the point of inflexion of optical axis
The horizontal displacement distance parallel with optical axis represents that the 4th lens image side surface is in the intersection point on optical axis to the 4th lens picture with SGI412
Side second represents that it meets following bar with SGI422 close to horizontal displacement distance parallel with optical axis between the point of inflexion of optical axis
Part：0<SGI412/(SGI412+TP4)≦0.9；0<SGI422/(SGI422+TP4)≦0.9.It is preferred that following bar can be met
Part：0.1≦SGI412/(SGI412+TP4)≦0.8；0.1≦SGI422/(SGI422+TP4)≦0.8.
Vertical range between the point of inflexion and optical axis of the 4th nearest optical axis in lens thing side represents with HIF411, the 4th lens
Image side surface in the intersection point on optical axis to the vertical range between the point of inflexion of the 4th nearest optical axis of lens image side surface and optical axis with
HIF421 represents that it meets following condition：0.01≦HIF411/HOI≦0.9；0.01≦HIF421/HOI≦0.9.It is preferred that
Following condition can be met：0.09≦HIF411/HOI≦0.5；0.09≦HIF421/HOI≦0.5.
4th lens thing side second represents close to the vertical range between the point of inflexion of optical axis and optical axis with HIF412, the 4th
Lens image side surface in the point of inflexion of the intersection point on optical axis to the 4th lens image side surface second close to optical axis it is vertical between optical axis away from
Represented from HIF422, it meets following condition：0.01≦HIF412/HOI≦0.9；0.01≦HIF422/HOI≦0.9.Compared with
Goodly, following condition can be met：0.09≦HIF412/HOI≦0.8；0.09≦HIF422/HOI≦0.8.
4th lens thing side the 3rd represents close to the vertical range between the point of inflexion of optical axis and optical axis with HIF413, the 4th
Lens image side surface in the intersection point on optical axis to the 4th lens image side surface the 3rd close to optical axis the point of inflexion it is vertical between optical axis away from
Represented from HIF423, it meets following condition：0.001mm≦│HIF413│≦5mm；0.001mm≦│HIF423│≦5mm.
It is preferred that following condition can be met：0.1mm≦│HIF423│≦3.5mm；0.1mm≦│HIF413│≦3.5mm.
4th lens thing side the 4th represents close to the vertical range between the point of inflexion of optical axis and optical axis with HIF414, the 4th
Lens image side surface in the intersection point on optical axis to the 4th lens image side surface the 4th close to optical axis the point of inflexion it is vertical between optical axis away from
Represented from HIF424, it meets following condition：0.001mm≦│HIF414│≦5mm；0.001mm≦│HIF424│≦5mm.
It is preferred that following condition can be met：0.1mm≦│HIF424│≦3.5mm；0.1mm≦│HIF414│≦3.5mm.
A kind of embodiment of optical imaging system of the present utility model, can be by with high abbe number and low dispersion system
Several lens are staggered, and contribute to the amendment of optical imaging system aberration.
Above-mentioned aspherical equation is：
Z=ch2/[1+[1(k+1)c2h2]0.5]+A4h4+A6h6+A8h8+A10h10+A12h12+A14h14+A16h16+
A18h18+A20h20+…(1)
Wherein, it along optical axis direction is highly being that the positional value that refers to is made in h position with surface vertices that z, which is, and k is conical surface system
Number, c is the inverse of radius of curvature, and A4, A6, A8, A10, A12, A14, A16, A18 and A20 are order aspherical coefficients.
In optical imaging system provided by the utility model, the material of lens can be plastics or glass.When lens material is
Plastics, it can effectively reduce production cost and weight.The another material for working as lens is glass, then can control fuel factor and increase
The design space of optical imaging system refracting power configuration.In addition, the first lens are to the thing side of the 4th lens in optical imaging system
Face and image side surface can be aspherical, and it can obtain more control variable, saturating compared to traditional glass in addition to cut down aberration
The use of mirror even can reduce the number that lens use, therefore can effectively reduce total height of the utility model optical imaging system
Degree.
Furthermore in optical imaging system provided by the utility model, if lens surface is convex surface, then it represents that lens surface in
It is convex surface at dipped beam axle；If lens surface is concave surface, then it represents that lens surface is concave surface at dipped beam axle.
In addition, in optical imaging system of the present utility model, an at least diaphragm can be set on demand, to reduce veiling glare,
Help to lift picture quality.
The also visual demand of optical imaging system of the present utility model is applied in the optical system of mobile focusing, and has concurrently excellent
Good lens error correction and the characteristic of good image quality, so as to expand application.
The also visual demand of optical imaging system of the present utility model includes a drive module, and the drive module can be saturating with these
Mirror is coupled and these lens is produced displacement.Foregoing drive module can be that voice coil motor (VCM) is used to drive camera lens to carry out
Focusing, or be optical anti-vibration element (OIS) occurrence frequency out of focus caused by camera lens vibrates for reducing shooting process.
The also visual demand of optical imaging system of the present utility model makes the first lens, the second lens, the 3rd lens, the 4th saturating
At least one piece of lens are that light of the wavelength less than 500nm filters out component in mirror, and it can pass through the lens of the specific tool filtering function
Plated film at least on a surface or the lens in itself i.e. as tool can filter out the material of short wavelength made by and reach.
The also visual demand selection of the imaging surface of optical imaging system of the present utility model is a plane or a curved surface.Work as imaging
Face is a curved surface (such as sphere with a radius of curvature), helps to reduce focusing on light in the incidence angle needed for imaging surface,
It is simultaneously helpful for lifting relative illumination in addition to helping to reach the length (TTL) of micro optical imaging system.
An aspect of the present utility model is to provide a kind of plastic lens positioning component, and the plastic lens positioning component can be
It is integrally formed, in addition to the accommodating lens of the present utility model with positioning, the outer wall of plastic lens positioning component is also included at least
Two shapings fill mouth trace, and these shapings, which fill mouth trace, can be surrounded on the setting of an axle center (such as optical axis) symmetric mode on demand, can
Produce more uniform thickness configuration, and lift structure intensity.If there are the outer wall of plastic lens positioning component two shapings to fill mouth
Trace, then angle can be 180 degree between shaping fills mouth trace.If there are the outer wall of plastic lens positioning component three shapings to fill mouth trace,
Angle can be 120 degree between then shaping fills mouth trace.Foregoing shaping fills mouth trace and can be arranged at the outer wall of thing end on demand or set
It is placed in the outer wall as end.
According to above-mentioned embodiment, specific embodiment set forth below simultaneously coordinates schema to be described in detail.
First embodiment
Figure 1A and Figure 1B is refer to, wherein Figure 1A shows a kind of optical imagery according to the utility model first embodiment
The schematic diagram of system, Figure 1B are followed successively by spherical aberration, astigmatism and the optical distortion of the optical imaging system of first embodiment from left to right
Curve map.Fig. 1 C are the modulation conversion characteristic pattern of the optical imaging system of first embodiment.From Figure 1A, optical imaging system
10 include aperture 100, the first lens 110, the second lens 120, the 3rd lens 130, the 4th lens successively by thing side to image side
140th, infrared filter 170, imaging surface 180 and imaging sensor 190.
First lens 110 have positive refracting power, and are plastic material, and its thing side 112 is convex surface, and its image side surface 114 is
Concave surface, and be all aspherical, and its thing side 112 and image side surface 114 are respectively provided with a point of inflexion.First lens are on optical axis
Thickness is TP1, and the first lens are represented in the thickness of 1/2 entrance pupil diameter (HEP) height with ETP1.
First lens thing side is in the intersection point on optical axis between the point of inflexion of the first nearest optical axis in lens thing side and light
The parallel horizontal displacement distance of axle represents that the first lens image side surface is in the intersection point on optical axis to the first lens image side surface with SGI111
The horizontal displacement distance parallel with optical axis represents that it meets following condition with SGI121 between the point of inflexion of nearest optical axis：
SGI111=0.2008mm；SGI121=0.0113mm；│ SGI111 │/(│ SGI111 │+TP1)=0.3018；│SGI121│/(│
SGI121 │+TP1)=0.0238.
First lens thing side is in the intersection point on optical axis between the point of inflexion of the first nearest optical axis in lens thing side and optical axis
Vertical range represent that the first lens image side surface is in the intersection point on optical axis to the first nearest optical axis of lens image side surface with HIF111
Vertical range between the point of inflexion and optical axis represents that it meets following condition with HIF121：HIF111=0.7488mm；HIF121=
0.4451mm；HIF111/HOI=0.2552；HIF121/HOI=0.1517.
Second lens 120 have positive refracting power, and are plastic material, and its thing side 122 is concave surface, and its image side surface 124 is
Convex surface, and be all aspherical, and its thing side 122 has a point of inflexion.Second lens are TP2 in the thickness on optical axis, second
Lens are represented in the thickness of 1/2 entrance pupil diameter (HEP) height with ETP2.
Second lens thing side is in the intersection point on optical axis between the point of inflexion of the second nearest optical axis in lens thing side and light
The parallel horizontal displacement distance of axle represents that the second lens image side surface is in the intersection point on optical axis to the second lens image side surface with SGI211
The horizontal displacement distance parallel with optical axis represents that it meets following condition with SGI221 between the point of inflexion of nearest optical axis：
SGI211=-0.1791mm；│ SGI211 │/(│ SGI211 │+TP2)=0.3109.
Second lens thing side is in the intersection point on optical axis between the point of inflexion of the second nearest optical axis in lens thing side and optical axis
Vertical range represent that the second lens image side surface is in the intersection point on optical axis to the second nearest optical axis of lens image side surface with HIF211
Vertical range between the point of inflexion and optical axis represents that it meets following condition with HIF221：HIF211=0.8147mm；HIF211/
HOI=0.2777.
3rd lens 130 have negative refracting power, and are plastic material, and its thing side 132 is concave surface, and its image side surface 134 is
Convex surface, and be all aspherical, and its image side surface 134 has a point of inflexion.3rd lens are TP3 in the thickness on optical axis, the 3rd
Lens are represented in the thickness of 1/2 entrance pupil diameter (HEP) height with ETP3.
3rd lens thing side is in the intersection point on optical axis between the point of inflexion of the 3rd nearest optical axis in lens thing side and light
The parallel horizontal displacement distance of axle represents that the 3rd lens image side surface is in the intersection point on optical axis to the 3rd lens image side surface with SGI311
The horizontal displacement distance parallel with optical axis represents that it meets following condition with SGI321 between the point of inflexion of nearest optical axis：
SGI321=-0.1647mm；│ SGI321 │/(│ SGI321 │+TP3)=0.1884.
Vertical range between the point of inflexion and optical axis of the 3rd nearest optical axis in lens thing side represents with HIF311, the 3rd lens
Image side surface in the intersection point on optical axis to the vertical range between the point of inflexion of the 3rd nearest optical axis of lens image side surface and optical axis with
HIF321 represents that it meets following condition：HIF321=0.7269mm；HIF321/HOI=0.2477.
4th lens 140 have negative refracting power, and are plastic material, and its thing side 142 is convex surface, and its image side surface 144 is
Concave surface, and be all aspherical, and its thing side 142 with two points of inflexion and image side surface 144 with a point of inflexion.4th lens
It is TP4 in the thickness on optical axis, the 4th lens are represented in the thickness of 1/2 entrance pupil diameter (HEP) height with ETP4；ETP4/
TP4=1.139.
4th lens thing side is in the intersection point on optical axis between the point of inflexion of the 4th nearest optical axis in lens thing side and light
The parallel horizontal displacement distance of axle represents that the 4th lens image side surface is in the intersection point on optical axis to the 4th lens image side surface with SGI411
The horizontal displacement distance parallel with optical axis represents that it meets following condition with SGI421 between the point of inflexion of nearest optical axis：
SGI411=0.0137mm；SGI421=0.0922mm；│ SGI411 │/(│ SGI411 │+TP4)=0.0155；│SGI421│/(│
SGI421 │+TP4)=0.0956.
4th lens thing side is in the intersection point on optical axis to the 4th lens thing side second close between the point of inflexion of optical axis
The horizontal displacement distance parallel with optical axis represents that it meets following condition with SGI412：SGI412=-0.1518mm；│SGI412
│/(│ SGI412 │+TP4)=0.1482.
Vertical range between the point of inflexion and optical axis of the 4th nearest optical axis in lens thing side represents with HIF411, the 4th lens
Vertical range between the point of inflexion and optical axis of the nearest optical axis of image side surface represents that it meets following condition with HIF411：HIF411=
0.2890mm；HIF421=0.5794mm；HIF411/HOI=0.0985；HIF421/HOI=0.1975.
Vertical range between the point of inflexion and optical axis of 4th lens thing side the second dipped beam axle represents that it meets with HIF412
Following condition：HIF412=1.3328mm；HIF412/HOI=0.4543.
Infrared filter 170 is glass material, and it is arranged between the 4th lens 140 and imaging surface 180 and does not influence light
Learn the focal length of imaging system.
In the optical imaging system of first embodiment, the focal length of optical imaging system is f, the incident light of optical imaging system
The a diameter of HEP of pupil, the half at maximum visual angle is HAF in optical imaging system, and its numerical value is as follows：F=3.4375mm；F/HEP=
2.23；And HAF=39.69 degree and tan (HAF)=0.8299.
In the optical imaging system of first embodiment, the focal length of the first lens 110 is f1, and the focal length of the 4th lens 140 is
F4, it meets following condition：F1=3.2736mm；│ f/f1 │=1.0501；F4=-8.3381mm；And │ f1/f4 │=
0.3926。
In the optical imaging system of first embodiment, the focal lengths of the lens 130 of the second lens 120 to the 3rd is respectively f2, f3,
It meets following condition：│ f2 │+│ f3 │=10.0976mm；│ f1 │+│ f4 │=11.6116mm and │ f2 │+│ f3 │<│f1│+│
f4│。
The focal length f of optical imaging system and the focal length fp per a piece of lens with positive refracting power ratio are PPR, optics
The focal length f of the imaging system and focal length fn per a piece of lens with negative refracting power ratio is NPR, the optics of first embodiment
In imaging system, the PPR summations of the lens of all positive refracting powers of tool are Σ PPR=│ f/f1 │+│ f/f2 │=1.95585, are owned
The NPR summations of the lens of the negative refracting power of tool for Σ NPR=│ f/f3 │+│ f/f4 │=0.95770, Σ PPR/ │ Σ NPR │=
2.04224.Also meet following condition simultaneously：│ f/f1 │=1.05009；│ f/f2 │=0.90576；│ f/f3 │=0.54543；│
F/f4 │=0.41227.
In the optical imaging system of first embodiment, between the lens image side surface 144 of the first lens thing side 112 to the 4th away from
From for InTL, the first lens thing side 112 to the distance between imaging surface 180 is HOS, aperture 100 to the distance between imaging surface 180
For InS, the half of the effective sensing region diagonal line length of imaging sensor 190 is HOI, the 4th lens image side surface 144 to imaging surface
Distance between 180 is InB, and it meets following condition：InTL+InB=HOS；HOS=4.4250mm；HOI=2.9340mm；
HOS/HOI=1.5082；HOS/f=1.2873；InTL/HOS=0.7191；InS=4.2128mm；And InS/HOS=
0.95204。
In the optical imaging system of first embodiment, in the thickness summation of lens of all tool refracting powers on optical axis be Σ
TP, it meets following condition：Σ TP=2.4437mm；And Σ TP/InTL=0.76793.Thereby, when system can be taken into account simultaneously
The yield of contrast and the lens manufacture of imaging simultaneously provides appropriate back focal length to house other assemblies.In addition, described first is saturating
Mirror, second lens, the 3rd lens and the 4th lens are in 1/2HEP height and parallel to the thickness point of optical axis
Not Wei ETP1, ETP2, ETP3 and ETP4, foregoing ETP1 to ETP4 summation is SETP；It is first lens, described second saturating
Mirror, the 3rd lens and the 4th lens are respectively TP1, TP2, TP3 and TP4 in the thickness of optical axis, and foregoing TP1 is extremely
TP4 summation is STP；In on coordinate points to the 4th lens image side surface of 1/2HEP height on the first lens thing side
Horizontal range parallel to optical axis between the coordinate points of 1/2HEP height is EIN；Wherein SETP/STP=0.962；SETP/EIN
=0.756.
On the 4th lens image side surface in 1/2HEP height coordinate points between infrared filter parallel to optical axis
Distance is EIR, and intersection point to the distance between infrared filter parallel to optical axis on the 4th lens image side surface with optical axis is
PIR, EIR/PIR=0.357.
On the first lens thing side in 1/2HEP height coordinate points to the water between the imaging surface parallel to optical axis
Flat distance is ETL, on the first lens thing side on coordinate points to the 4th lens image side surface of 1/2HEP height in
Horizontal range between the coordinate points of 1/2HEP height parallel to optical axis is EIN, EIN/ETL=0.737.
On the 3rd lens image side surface in 1/2HEP height coordinate points to the water between the imaging surface parallel to optical axis
Flat distance is EBL, on the 4th lens image side surface with the horizontal range of the intersection point of optical axis to the imaging surface parallel to optical axis
For BL, EBL/BL=0.8899.
In the optical imaging system of first embodiment, the radius of curvature of the first lens thing side 112 is R1, the first lens picture
The radius of curvature of side 114 is R2, and it meets following condition：│ R1/R2 │=0.1853.Thereby, the first lens possesses suitably
Positive flexion force intensity, avoids spherical aberration increase from overrunning.
In the optical imaging system of first embodiment, the radius of curvature of the 4th lens thing side 142 is R7, the 4th lens picture
The radius of curvature of side 144 is R8, and it meets following condition：(R7-R8)/(R7+R8)=0.2756.Thereby, be advantageous to correct
Astigmatism caused by optical imaging system.
In the optical imaging system of first embodiment, the respective focal length of the first lens 110 and the second lens 120 is respectively
F1, f2, the focal length summation of the lens of all positive refracting powers of tool is Σ PP, and it meets following condition：Σ PP=f1+f2=
7.0688mm；And f1/ (f1+f2)=0.4631.Thereby, contribute to the positive refracting powers of the first lens 110 of appropriate distribution to its
His positive lens, to suppress the generation of the significant aberration of incident ray traveling process.
In the optical imaging system of first embodiment, the respective focal length of the 3rd lens 130 and the 4th lens 140 is respectively f3
And f4, the focal length summation of the lens of all negative refracting powers of tool is Σ NP, and it meets following condition：Σ NP=f3+f4=-
14.6405mm；And f4/ (f3+f4)=0.5695.Thereby, contribute to the negative refracting powers of the 4th lens of appropriate distribution to other
Negative lens, to suppress the generation of the significant aberration of incident ray traveling process.
In the optical imaging system of first embodiment, the first lens 110 and the second lens 120 are in the spacing distance on optical axis
For IN12, it meets following condition：IN12=0.3817mm；IN12/f=0.11105.Thereby, the color of improvement lens is contributed to
Difference is to lift its performance.
In the optical imaging system of first embodiment, the second lens 120 and the 3rd lens 130 are in the spacing distance on optical axis
For IN23, it meets following condition：IN23=0.0704mm；IN23/f=0.02048.Thereby, the color of improvement lens is contributed to
Difference is to lift its performance.
In the optical imaging system of first embodiment, the 3rd lens 130 and the 4th lens 140 are in the spacing distance on optical axis
For IN34, it meets following condition：IN34=0.2863mm；IN34/f=0.08330.Thereby, the color of improvement lens is contributed to
Difference is to lift its performance.
On the first lens image side surface on coordinate points to the second lens thing side of 1/2HEP height in 1/
Horizontal range between the coordinate points of 2HEP height parallel to optical axis is ED12；Between first lens and second lens in
Distance on optical axis is IN12；On the 3rd lens image side surface in 1/2HEP height coordinate points to the 4th lens thing side
Horizontal range on face parallel to optical axis between the coordinate points of 1/2HEP height is ED34；3rd lens and the described 4th saturating
Between mirror in the distance on optical axis be IN34；ED12/IN12=0.604, ED34/IN34=1.692.
In the optical imaging system of first embodiment, the first lens 110 and the second lens 120 are distinguished in the thickness on optical axis
For TP1 and TP2, it meets following condition：TP1=0.46442mm；TP2=0.39686mm；TP1/TP2=1.17023 with
And (TP1+IN12)/TP2=2.13213.Thereby, contribute to control the susceptibility of optical imaging system manufacture and lift its property
Energy.
In the optical imaging system of first embodiment, the 3rd lens 130 and the 4th lens 140 are distinguished in the thickness on optical axis
For TP3 and TP4, foregoing two lens are IN34 in the spacing distance on optical axis, and it meets following condition：TP3=
0.70989mm；TP4=0.87253mm；TP3/TP4=0.81359 and (TP4+IN34)/TP3=1.63248.Thereby, have
Help control the susceptibility of optical imaging system manufacture and reduce system total height.
In the optical imaging system of first embodiment, it meets following condition：IN23/ (TP2+IN23+TP3)=
0.05980.Thereby help and correct aberration caused by incident light traveling process a little layer by layer and reduce system total height.
In the optical imaging system of first embodiment, the 4th lens thing side 142 is in the intersection point on optical axis to the 4th lens
The maximum effective radius position of thing side 142 is InRS41 in the horizontal displacement distance of optical axis, and the 4th lens image side surface 144 is in light
Intersection point on axle to the maximum effective radius position of the 4th lens image side surface 144 in the horizontal displacement distance of optical axis be InRS42,
4th lens 140 are TP4 in the thickness on optical axis, and it meets following condition：InRS41=-0.23761mm；InRS42=-
0.20206mm；│ InRS41 │+│ InRS42 │=0.43967mm；│ InRS41 │/TP4=0.27232；And │ InRS42 │/TP4
=0.23158.Thereby be advantageous to eyeglass to make and be molded, and effectively maintain its miniaturization.
In the optical imaging system of the present embodiment, the critical point C41 of the 4th lens thing side 142 and the vertical range of optical axis
For HVT41, the critical point C42 of the 4th lens image side surface 144 and the vertical range of optical axis are HVT42, and it meets following condition：
HVT41=0.5695mm；HVT42=1.3556mm；HVT41/HVT42=0.4201.Thereby, can effective modified off-axis visual field
Aberration.
The optical imaging system of the present embodiment its meet following condition：HVT42/HOI=0.4620.Thereby, light is contributed to
Learn the lens error correction of the peripheral field of imaging system.
The optical imaging system of the present embodiment its meet following condition：HVT42/HOS=0.3063.Thereby, light is contributed to
Learn the lens error correction of the peripheral field of imaging system.
In the optical imaging system of first embodiment, the abbe numbers of the first lens is NA1, the abbe number of the second lens
For NA2, the abbe number of the 3rd lens is NA3, and the abbe number of the 4th lens is NA4, and it meets following condition：│NA1-NA2
│=0；NA3/NA2=0.39921.Thereby, the amendment of optical imaging system aberration is contributed to.
In the optical imaging system of first embodiment, optical imaging system in imaging when
TV distortion is TDT, and optical distortion during imaging is ODT, and it meets following condition：│ TDT │=0.4%；│ ODT │=
2.5%.
In the optical imaging system of the present embodiment, optical axis, 0.3HOI and 0.7HOI tri- on the imaging surface are in half
The modulation conversion contrast rate of transform (MTF numerical value) of frequency represents that it meets following condition with MTFH0, MTFH3 and MTFH7 respectively：
MTFH0 is about 0.525；MTFH3 is about 0.375；And MTFH7 is about 0.35.
In the optical imaging system of the present embodiment, it is seen that optical axis, 0.3HOI and 0.7HOI of the light on the imaging surface
Three modulation conversions in spatial frequency 55cycles/mm are contrasted the rates of transform and represented respectively with MTFE0, MTFE3 and MTFE7,
MTFE0 is about 0.88；MTFE3 is about 0.87；And MTFE7 is about 0.85.
In the optical imaging system of the present embodiment, it is seen that optical axis, 0.3HOI and 0.7HOI of the light on the imaging surface
Three modulation conversions in spatial frequency 110cycles/mm are contrasted the rates of transform and represented respectively with MTFQ0, MTFQ3 and MTFQ7,
MTFQ0 is about 0.74；MTFQ3 is about 0.67；And MTFQ7 is about 0.62.
It refer to Fig. 7 A, 7B, 7C, the lens orientation component 794 of the present embodiment, in hollow and any lens can be housed, and
Making these lens arrangements, the lens orientation component includes a thing end 796 and a picture end 798, the thing end on optical axis
Close to thing side and with one first opening 7962, this, close to image side and with one second opening 7982, is somebody's turn to do as end 798 in portion 796
The outer wall of lens positioning component 794 includes two sections 799, and there is a shaping to fill mouth trace 7992 respectively in these sections 799.Before
The internal diameter for stating first opening 7962 is OD, and the internal diameter of second opening 7982 is ID, and it meets following condition：OD=0.8mm；
ID=2.82mm；OD/ID=0.2837.The minimum thickness of the thing end 796 be OT and this as the minimum thickness of end 798 is
IT, it meets following condition：OT=0.1mm；IT=0.3mm；OT/IT=0.33.
Coordinate again with reference to following table one and table two.
The asphericity coefficient of table two, first embodiment
Table one is the unit of the detailed structured data, wherein radius of curvature, thickness, distance and focal length of Fig. 1 first embodiments
For mm, and surface 0-14 represents by the surface of thing side to image side successively.Table two is the aspherical surface data in first embodiment, its
In, the conical surface coefficient in k table aspheric curve equations, A1-A20 then represents each surface 1-20 rank asphericity coefficients.In addition,
Following embodiment form is the schematic diagram and aberration curve figure of corresponding each embodiment, and the definition of data is all real with first in form
It is identical to apply the definition of the table one and table two of example, is not added with repeating herein.
Second embodiment
Fig. 2A and Fig. 2 B are refer to, wherein Fig. 2A shows a kind of optical imagery according to the utility model second embodiment
The schematic diagram of system, Fig. 2 B are followed successively by spherical aberration, astigmatism and the optical distortion of the optical imaging system of second embodiment from left to right
Curve map.Fig. 2 C are the visible light spectrum modulation conversion characteristic pattern of the optical imaging system of second embodiment.From Fig. 2A, light
Learn imaging system 20 by thing side to image side successively include the first lens 210, aperture 200, the second lens 220, the 3rd lens 230,
4th lens 240, infrared filter 270, imaging surface 280 and imaging sensor 290.
First lens 210 have negative refracting power, and are plastic material, and its thing side 212 is convex surface, and its image side surface 214 is
Concave surface, and be all aspherical, and its thing side 212 has a point of inflexion.
Second lens 220 have positive refracting power, and are plastic material, and its thing side 222 is convex surface, and its image side surface 224 is
Convex surface, and be all aspherical.
3rd lens 230 have positive refracting power, and are plastic material, and its thing side 232 is convex surface, and its image side surface 234 is
Convex surface, and be all aspherical, and its thing side 232 with two points of inflexion and image side surface 234 with a point of inflexion.
4th lens 240 have negative refracting power, and are plastic material, and its thing side 242 is concave surface, and its image side surface 244 is
Concave surface, and be all aspherical, and its image side surface 244 has a point of inflexion.
Infrared filter 270 is glass material, and it is arranged between the 4th lens 240 and imaging surface 280 and does not influence light
Learn the focal length of imaging system.
It please coordinate with reference to following table three and table four.
The asphericity coefficient of table four, second embodiment
In second embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, following table parameter
Definition is all identical with first embodiment, and not in this to go forth.
Following condition formulae numerical value is can obtain according to table three and table four：
Following condition formulae numerical value is can obtain according to table three and table four：
3rd embodiment
Fig. 3 A and Fig. 3 B are refer to, wherein Fig. 3 A illustrate a kind of optical imagery system according to the utility model 3rd embodiment
The schematic diagram of system, spherical aberration, astigmatism and the optical distortion that Fig. 3 B are followed successively by the optical imaging system of 3rd embodiment from left to right are bent
Line chart.Fig. 3 C are the visible light spectrum modulation conversion characteristic pattern of the optical imaging system of 3rd embodiment.From Fig. 3 A, optics
Imaging system 30 includes the first lens 310, aperture 300, the second lens 320, the 3rd lens 330, the successively by thing side to image side
Four lens 340, infrared filter 370, imaging surface 380 and imaging sensor 390.
First lens 310 have negative refracting power, and are plastic material, and its thing side 312 is convex surface, and its image side surface 314 is
Concave surface, and be all aspherical, its thing side 312.
Second lens 320 have positive refracting power, and are plastic material, and its thing side 322 is convex surface, and its image side surface 324 is
Convex surface, and be all aspherical.
3rd lens 330 have positive refracting power, and are plastic material, and its thing side 332 is convex surface, and its image side surface 334 is
Convex surface, and be all aspherical, its thing side 332 is with two points of inflexion and image side surface 334 with a point of inflexion.
4th lens 340 have negative refracting power, and are plastic material, and its thing side 342 is concave surface, and its image side surface 344 is
Concave surface, and be all aspherical, and its thing side 342 has two points of inflexion.
Infrared filter 370 is glass material, and it is arranged between the 4th lens 340 and imaging surface 380 and does not influence light
Learn the focal length of imaging system.
It please coordinate with reference to following table five and table six.
The asphericity coefficient of table six, 3rd embodiment
In 3rd embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, following table parameter
Definition is all identical with first embodiment, and not in this to go forth.
Following condition formulae numerical value is can obtain according to table five and table six：
Following condition formulae numerical value is can obtain according to table five and table six：
Fourth embodiment
Fig. 4 A and Fig. 4 B are refer to, wherein Fig. 4 A illustrate a kind of optical imagery system according to the utility model fourth embodiment
The schematic diagram of system, spherical aberration, astigmatism and the optical distortion that Fig. 4 B are followed successively by the optical imaging system of fourth embodiment from left to right are bent
Line chart.Fig. 4 C are the visible light spectrum modulation conversion characteristic pattern of the optical imaging system of fourth embodiment.From Fig. 4 A, optics
Imaging system 40 includes the first lens 410, aperture 400, the second lens 420, the 3rd lens 430, the successively by thing side to image side
Four lens 440, infrared filter 470, imaging surface 480 and imaging sensor 490.
First lens 410 have negative refracting power, and are plastic material, and its thing side 412 is convex surface, and its image side surface 414 is
Concave surface, and be all aspherical.
Second lens 420 have positive refracting power, and are plastic material, and its thing side 422 is convex surface, and its image side surface 424 is
Convex surface, and be all aspherical.
3rd lens 430 have negative refracting power, and are plastic material, and its thing side 432 is concave surface, and its image side surface 434 is
Concave surface, and be all aspherical.
4th lens 440 have positive refracting power, and are plastic material, and its thing side 442 is convex surface, and its image side surface 444 is
Convex surface, and be all aspherical, and its thing side 442 has a point of inflexion.
Infrared filter 470 is glass material, and it is arranged between the 4th lens 440 and imaging surface 480 and does not influence light
Learn the focal length of imaging system.
It please coordinate with reference to following table seven and table eight.
The asphericity coefficient of table eight, fourth embodiment
In fourth embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, following table parameter
Definition is all identical with first embodiment, and not in this to go forth.
Following condition formulae numerical value is can obtain according to table seven and table eight：
Following condition formulae numerical value is can obtain according to table seven and table eight：
5th embodiment
Fig. 5 A and Fig. 5 B are refer to, wherein Fig. 5 A show a kind of optical imagery according to the embodiment of the utility model the 5th
The schematic diagram of system, Fig. 5 B are followed successively by spherical aberration, astigmatism and the optical distortion of the optical imaging system of the 5th embodiment from left to right
Curve map.Fig. 5 C are the visible light spectrum modulation conversion characteristic pattern of the optical imaging system of the 5th embodiment.From Fig. 5 A, light
Learn imaging system 50 by thing side to image side successively include the first lens 510, aperture 500, the second lens 520, the 3rd lens 530,
4th lens 540, infrared filter 570, imaging surface 580 and imaging sensor 590.
First lens 510 have negative refracting power, and are plastic material, and its thing side 512 is convex surface, and its image side surface 514 is
Concave surface, and be all aspherical, its image side surface 514 has a point of inflexion.
Second lens 520 have positive refracting power, and are plastic material, and its thing side 522 is concave surface, and its image side surface 524 is
Convex surface, and be all aspherical.
3rd lens 530 have negative refracting power, and are plastic material, and its thing side 532 is concave surface, and its image side surface 534 is
Convex surface, and be all aspherical.
4th lens 540 have positive refracting power, and are plastic material, and its thing side 542 is convex surface, and its image side surface 544 is
Convex surface, and be all aspherical, and its thing side 542 has a point of inflexion.
Infrared filter 570 is glass material, and it is arranged between the 4th lens 540 and imaging surface 580 and does not influence light
Learn the focal length of imaging system.
It please coordinate with reference to following table nine and table ten.
The asphericity coefficient of table ten, the 5th embodiment
In 5th embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, following table parameter
Definition is all identical with first embodiment, and not in this to go forth.
Following condition formulae numerical value is can obtain according to table nine and table ten：
Following condition formulae numerical value is can obtain according to table nine and table ten：
Sixth embodiment
Fig. 6 A and Fig. 6 B are refer to, wherein Fig. 6 A illustrate a kind of optical imagery system according to the utility model sixth embodiment
The schematic diagram of system, spherical aberration, astigmatism and the optical distortion that Fig. 6 B are followed successively by the optical imaging system of sixth embodiment from left to right are bent
Line chart.Fig. 6 C are the visible light spectrum modulation conversion characteristic pattern of the optical imaging system of sixth embodiment.From Fig. 6 A, optics
Imaging system 60 includes the first lens 610, aperture 600, the second lens 620, the 3rd lens 630, the successively by thing side to image side
Four lens 640, infrared filter 670, imaging surface 680 and imaging sensor 690.
First lens 610 have negative refracting power, and are plastic material, and its thing side 612 is convex surface, and its image side surface 614 is
Concave surface, and be all aspherical.
Second lens 620 have positive refracting power, and are plastic material, and its thing side 622 is concave surface, and its image side surface 624 is
Convex surface, and be all aspherical, and its thing side 622 has a point of inflexion.
3rd lens 630 have positive refracting power, and are plastic material, and its thing side 632 is convex surface, and its image side surface 634 is
Convex surface, and be all aspherical, and its image side surface 634 has a point of inflexion.
4th lens 640 have negative refracting power, and are plastic material, and its thing side 642 is convex surface, and its image side surface 644 is
Concave surface, and be all aspherical, and its thing side 642 and image side surface 644 are respectively provided with two points of inflexion.
Infrared filter 670 is glass material, and it is arranged between the 4th lens 640 and imaging surface 680 and does not influence light
Learn the focal length of imaging system.
It please coordinate with reference to following table 11 and table 12.
The asphericity coefficient of table 12, sixth embodiment
In sixth embodiment, aspherical fitting equation represents the form such as first embodiment.In addition, following table parameter
Definition is all identical with first embodiment, and not in this to go forth.
Following condition formulae numerical value is can obtain according to table 11 and table 12：
Following condition formulae numerical value is can obtain according to table 11 and table 12：
Although the utility model is disclosed above with embodiment, so it is not limited to the utility model, Ren Heben
Art personnel, do not departing from spirit and scope of the present utility model, when can be used for a variety of modifications and variations, therefore this reality
Worked as with new protection domain and be defined depending on appended claims scope institute defender.
To be art although the utility model is particularly shown with reference to its exemplary embodiments and describes
Those of ordinary skill will be understood by, of the present utility model defined in following claims scope and its equivalent in not departing from
Form and the various change in details can be carried out under spirit and scope to it.
Claims (25)
1. a kind of optical imaging system, it is characterised in that included successively by thing side to image side：
One first lens, there is refracting power；
One second lens, there is refracting power；
One the 3rd lens, there is refracting power；
One the 4th lens, there is refracting power；
One imaging surface；And
One lens positioning component, wherein the lens positioning component is in hollow and can house any lens, and arrange said lens
It is listed on optical axis, the lens positioning component includes a thing end and one as end, and the thing end is close to thing side and has
One first opening, it is described to include at least as end close to image side and with one second opening, the outer wall of the lens positioning component
There is at least one shaping to fill mouth trace respectively for two sections, above-mentioned section, and the optical imaging system has the saturating of refracting power
Mirror is four pieces, and first lens at least one piece of lens into the 4th lens have positive refracting power, the optical imagery system
The focal length of system is f, and the entrance pupil diameter of the optical imaging system is HEP, the first lens thing side to the imaging
Face is in having a distance HOS on optical axis, the first lens thing side to the 4th lens image side surface is in having one on optical axis
Distance InTL, the half of the maximum visual angle of the optical imaging system are HAF, first lens, second lens,
3rd lens and the 4th lens in 1/2HEP height and thickness parallel to optical axis be respectively ETP1, ETP2,
ETP3 and ETP4, foregoing ETP1 to ETP4 summation are SETP, first lens, second lens, the described 3rd saturating
Mirror and the 4th lens are respectively TP1, TP2, TP3 and TP4 in the thickness of optical axis, and foregoing TP1 to TP4 summation is
STP, it meets following condition：1≦f/HEP≦10；0deg<HAF≤150deg and 0.5≤SETP/STP<1.
2. optical imaging system as claimed in claim 1, it is characterised in that the outer wall of the lens positioning component is included at least
There is at least one shaping to fill mouth trace respectively for three sections, above-mentioned section.
3. optical imaging system as claimed in claim 1, it is characterised in that the internal diameter of first opening is OD, described the
The internal diameter of two openings is ID, and it meets following condition：0.1≦OD/ID≦10.
4. optical imaging system as claimed in claim 1, it is characterised in that the minimum thickness of the thing end is OT and institute
State as the minimum thickness of end is IT, it meets following condition：0.1≦OT/IT≦10.
5. optical imaging system as claimed in claim 1, it is characterised in that first lens are highly and parallel in 1/2HEP
It is ETP1 in the thickness of optical axis, second lens are ETP2 in 1/2HEP height and thickness parallel to optical axis, the described 3rd
Lens in 1/2HEP height and be ETP3 parallel to the thickness of optical axis, and the 4th lens are in 1/2HEP highly and parallel to optical axis
Thickness be ETP4, foregoing ETP1 to ETP4 summation is SETP, in the seat of 1/2HEP height on the first lens thing side
Horizontal range on punctuate to the 4th lens image side surface parallel to optical axis between the coordinate points of 1/2HEP height is EIN, its
Meet following equation：0.3≦SETP/EIN<1.
6. optical imaging system as claimed in claim 1, it is characterised in that the optical imaging system includes an optical filtering group
Part, the filtering assembly is between the 4th lens and the imaging surface, in 1/ on the 4th lens image side surface
The coordinate points of 2HEP height to the distance between the filtering assembly parallel to optical axis is EIR, on the 4th lens image side surface with
The intersection point of optical axis to the distance between the filtering assembly parallel to optical axis is PIR, and it meets following equation：0.1≦EIR/PIR≦
1.1。
7. optical imaging system as claimed in claim 1, it is characterised in that optical axis of the visible ray on the imaging surface,
0.3HOI and 0.7HOI tri- be in spatial frequency 55cycles/mm modulation conversion contrast the rate of transform respectively with MTFE0,
MTFE3 and MTFE7 represents that it meets following condition：MTFE0≧0.2；MTFE3≧0.01；And MTFE7≤0.01.
8. optical imaging system as claimed in claim 1, it is characterised in that in 1/2HEP height on the 3rd lens image side surface
The coordinate points of degree to the horizontal range between the imaging surface parallel to optical axis is EBL, on the 4th lens image side surface with optical axis
Intersection point to the imaging surface be BL parallel to the horizontal range of optical axis, it meets following equation：0.1≦EBL/BL≦1.5.
9. optical imaging system as claimed in claim 1, it is characterised in that also including an aperture, and the aperture is to institute
Imaging surface is stated in having a distance InS on optical axis, it meets following equation：0.2≦InS/HOS≦1.1.
10. a kind of optical imaging system, it is characterised in that included successively by thing side to image side：
One first lens, there is refracting power；
One second lens, there is refracting power；
One the 3rd lens, there is refracting power；
One the 4th lens, there is refracting power；
One imaging surface；And
One lens positioning component, wherein the lens positioning component is in hollow and can house any lens, and arrange said lens
It is listed on optical axis, the lens positioning component includes a thing end and one as end, and the thing end is close to thing side and has
One first opening, it is described to include at least as end close to image side and with one second opening, the outer wall of the lens positioning component
There is at least one shaping to fill mouth trace respectively for two sections, above-mentioned section, and the optical imaging system has the saturating of refracting power
Mirror is four pieces and a respective at least surface for first lens at least one piece lens into the 4th lens has at least
One point of inflexion, second lens at least one piece of lens into the 4th lens have positive refracting power, the optical imagery system
The focal length of system is f, and the entrance pupil diameter of the optical imaging system is HEP, the first lens thing side to the imaging
Face is in having a distance HOS on optical axis, the first lens thing side to the 4th lens image side surface is in having one on optical axis
Distance InTL, the half of the maximum visual angle of the optical imaging system is HAF, in 1/ on the first lens thing side
The coordinate points of 2HEP height to the horizontal range between the imaging surface parallel to optical axis is ETL, on the first lens thing side
In on coordinate points to the 4th lens image side surface of 1/2HEP height between the coordinate points of 1/2HEP height parallel to optical axis
Horizontal range is EIN, and it meets following condition：1.0≦f/HEP≦10.0；0deg<HAF≤150deg and 0.2≤EIN/
ETL<1。
11. optical imaging system as claimed in claim 10, it is characterised in that the outer wall of the lens positioning component is included extremely
There is at least one shaping to fill mouth trace respectively for few three sections, above-mentioned section.
12. optical imaging system as claimed in claim 10, it is characterised in that the internal diameter of first opening is OD, described
The internal diameter of second opening is ID, and it meets following condition：0.1≦OD/ID≦10.
13. optical imaging system as claimed in claim 10, it is characterised in that the minimum thickness of the thing end be OT and
The minimum thickness as end is IT, and it meets following condition：0.1≦OT/IT≦10.
14. optical imaging system as claimed in claim 10, it is characterised in that in 1/2HEP on the 3rd lens image side surface
Parallel to the horizontal range of optical axis between the coordinate points of 1/2HEP height on the coordinate points of height to the 4th lens thing side
In the distance on optical axis it is IN34 between the 3rd lens and the 4th lens, it meets following condition for ED34：0<
ED34/IN34≦50。
15. optical imaging system as claimed in claim 10, it is characterised in that in 1/2HEP on the first lens image side surface
Parallel to the horizontal range of optical axis between the coordinate points of 1/2HEP height on the coordinate points of height to the second lens thing side
In the distance on optical axis it is IN12 between first lens and second lens, it meets following condition for ED12：0<
ED12/IN12≦35。
16. optical imaging system as claimed in claim 10, it is characterised in that the 4th lens are in 1/2HEP height and put down
Row is ETP4 in the thickness of optical axis, and the 4th lens are TP4 in the thickness on optical axis, and it meets following condition：0.1≦
ETP4/TP4≦5。
17. optical imaging system as claimed in claim 10, it is characterised in that first lens and second lens
Between in the distance on optical axis be IN12, and meet following equation：0<IN12/f≦60.
18. optical imaging system as claimed in claim 10, it is characterised in that optical axis of the visible ray on the imaging surface,
0.3HOI and 0.7HOI tri- be in spatial frequency 110cycles/mm modulation conversion contrast the rate of transform respectively with MTFQ0,
MTFQ3 and MTFQ7 represents that it meets following condition：MTFQ0≧0.2；MTFQ3≧0.01；And MTFQ7≤0.01.
19. optical imaging system as claimed in claim 10, it is characterised in that first lens, second lens, institute
It is that light of the wavelength less than 500nm filters out component to state at least one piece of lens in the 3rd lens and the 4th lens.
20. a kind of optical imaging system, it is characterised in that included successively by thing side to image side：
One first lens, there is refracting power；
One second lens, there is refracting power；
One the 3rd lens, there is refracting power；
One the 4th lens, there is refracting power；And
One imaging surface；And
One lens positioning component, wherein the lens positioning component is in hollow and can house any lens, and arrange said lens
It is listed on optical axis, the lens positioning component includes a thing end and one as end, and the thing end is close to thing side and has
One first opening, it is described to include at least as end close to image side and with one second opening, the outer wall of the lens positioning component
There is at least one shaping to fill mouth trace respectively for three sections, above-mentioned section, and the optical imaging system has the saturating of refracting power
Mirror is four pieces, and the focal length of the optical imaging system is f, and the entrance pupil diameter of the optical imaging system is HEP, described the
One lens thing side is to the imaging surface in having a distance HOS on optical axis, the first lens thing side is to the described 4th saturating
In having a distance InTL on optical axis, the half of the maximum visual angle of the optical imaging system is HAF, described for mirror image side
Coordinate points to the horizontal range between the imaging surface parallel to optical axis on first lens thing side in 1/2HEP height is ETL,
On the first lens thing side on coordinate points to the 4th lens image side surface of 1/2HEP height in 1/2HEP height
Horizontal range between coordinate points parallel to optical axis is EIN, and it meets following condition：1.0≦f/HEP≦10；0deg<HAF≦
100deg and 0.2≤EIN/ETL<1.
21. optical imaging system as claimed in claim 20, it is characterised in that the internal diameter of first opening is OD, described
The internal diameter of second opening is ID, and it meets following condition：0.1≦OD/ID≦10.
22. optical imaging system as claimed in claim 20, it is characterised in that the minimum thickness of the thing end be OT and
The minimum thickness as end is IT, and it meets following condition：1≦OT/IT≦10.
23. optical imaging system as claimed in claim 20, it is characterised in that in 1/2HEP on the 3rd lens image side surface
The coordinate points of height to the horizontal range between the imaging surface parallel to optical axis is EBL, on the 4th lens image side surface with light
The intersection point of axle is BL parallel to the horizontal range of optical axis to the imaging surface, and it meets following equation：0.1≦EBL/BL≦1.5.
24. optical imaging system as claimed in claim 23, it is characterised in that the optical imaging system meets following public affairs
Formula：0mm<HOS≦50mm.
25. optical imaging system as claimed in claim 23, it is characterised in that the optical imaging system also includes a light
Circle, an imaging sensor and a drive module, described image sensor are arranged at the imaging surface, and the aperture is to institute
Imaging surface is stated in having a distance InS on optical axis, the drive module can each lens be coupled and make each lens production
Raw displacement, it meets following equation：0.2≦InS/HOS≦1.1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105205750U TWM541018U (en) | 2016-04-22 | 2016-04-22 | Optical image capturing system |
| TW105205750 | 2016-04-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206757159U true CN206757159U (en) | 2017-12-15 |
Family
ID=59370166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720400512.6U Active CN206757159U (en) | 2016-04-22 | 2017-04-17 | Optical imaging system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN206757159U (en) |
| TW (1) | TWM541018U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462972A (en) * | 2016-06-02 | 2017-12-12 | 先进光电科技股份有限公司 | Optical imaging system |
| US10901180B2 (en) | 2017-12-08 | 2021-01-26 | Largan Precision Co., Ltd. | Lens system, projection device, detecting module and electronic device |
| US11327277B2 (en) | 2019-11-29 | 2022-05-10 | Largan Precision Co., Ltd. | Lens system and electronic device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI612356B (en) * | 2016-04-22 | 2018-01-21 | 先進光電科技股份有限公司 | Optical image capturing system |
| TWI703366B (en) | 2018-02-13 | 2020-09-01 | 先進光電科技股份有限公司 | Optical image capturing system |
-
2016
- 2016-04-22 TW TW105205750U patent/TWM541018U/en unknown
-
2017
- 2017-04-17 CN CN201720400512.6U patent/CN206757159U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462972A (en) * | 2016-06-02 | 2017-12-12 | 先进光电科技股份有限公司 | Optical imaging system |
| US10901180B2 (en) | 2017-12-08 | 2021-01-26 | Largan Precision Co., Ltd. | Lens system, projection device, detecting module and electronic device |
| US11422340B2 (en) | 2017-12-08 | 2022-08-23 | Largan Precision Co., Ltd. | Lens system, projection device, detecting module and electronic device |
| US11327277B2 (en) | 2019-11-29 | 2022-05-10 | Largan Precision Co., Ltd. | Lens system and electronic device |
| US11640046B2 (en) | 2019-11-29 | 2023-05-02 | Largan Precision Co., Ltd. | Lens system and electronic device |
| US11940598B2 (en) | 2019-11-29 | 2024-03-26 | Largan Precision Co., Ltd. | Lens system and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM541018U (en) | 2017-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107367823B (en) | Optical imaging system | |
| CN106168702B (en) | Optical imaging system | |
| CN107045179B (en) | Optical imaging system | |
| CN206757161U (en) | Optical imaging system | |
| CN107085280A (en) | Optical imaging system | |
| CN107402432A (en) | Optical imaging system | |
| CN107272143A (en) | Optical imaging system | |
| CN106569316A (en) | Optical imaging system | |
| CN106855654A (en) | Optical imaging system | |
| CN106501920A (en) | Optical imaging system | |
| CN107203030A (en) | Optical imaging system | |
| CN206178234U (en) | Low-focal-plane offset optical imaging system for visible light and infrared light | |
| CN107643583A (en) | Optical imaging system | |
| CN108279478A (en) | Optical imaging system | |
| CN206757159U (en) | Optical imaging system | |
| CN108279480A (en) | Optical imaging system | |
| CN106353877A (en) | Optical imaging system | |
| CN107085286A (en) | Optical imaging system | |
| CN106154498A (en) | Optical imaging system | |
| CN107765398A (en) | Optical imaging system | |
| CN108279479A (en) | Optical imaging system | |
| CN107632367A (en) | Optical imaging system | |
| CN107085279A (en) | Optical imaging system | |
| CN107589520A (en) | Optical imaging system | |
| CN107045182A (en) | Optical imaging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |