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CN207081926U - A kind of lens driver with stabilization function - Google Patents

A kind of lens driver with stabilization function Download PDF

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Publication number
CN207081926U
CN207081926U CN201720840144.7U CN201720840144U CN207081926U CN 207081926 U CN207081926 U CN 207081926U CN 201720840144 U CN201720840144 U CN 201720840144U CN 207081926 U CN207081926 U CN 207081926U
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CN
China
Prior art keywords
magnet
stabilization
fixed
coil
optical axis
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.)
Withdrawn - After Issue
Application number
CN201720840144.7U
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Chinese (zh)
Inventor
李育昇
林益民
管昱豪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huizhou Sazhide Optoelectronics Technology Co ltd
Original Assignee
HUIZHOU DAYAWAN YONGCHANG ELECTRONIC INDUSTRY Co Ltd
Jing Meida Optical Technology Co Ltd
Huizhou Daya Gulf Three Mei Da Optical Technology Co Limiteds
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HUIZHOU DAYAWAN YONGCHANG ELECTRONIC INDUSTRY Co Ltd, Jing Meida Optical Technology Co Ltd, Huizhou Daya Gulf Three Mei Da Optical Technology Co Limiteds filed Critical HUIZHOU DAYAWAN YONGCHANG ELECTRONIC INDUSTRY Co Ltd
Priority to CN201720840144.7U priority Critical patent/CN207081926U/en
Application granted granted Critical
Publication of CN207081926U publication Critical patent/CN207081926U/en
Withdrawn - After Issue legal-status Critical Current
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  • Lens Barrels (AREA)

Abstract

A kind of lens driver with stabilization function is the utility model is related to, its stabilization actuator includes:The first stabilization coil for being fixed on the rear side of the magnet holder, the second stabilization coil for being fixed on the pedestal side, it is fixed in the magnet holder and every empty the first opposed magnet assemblies and is fixed on the pedestal side and with the first stabilization coil every empty the second opposed magnet assemblies with the second stabilization coil.In the OIS movable parts of lens driver of the present utility model with stabilization function, only include one group of magnet and one group of stabilization coil, and another group of magnet and stabilization coil are arranged in OIS fixed part, mitigate significantly compared with existing four groups or two pairs of magnet so as to the weight of movable part, requirement to bearing spring can reduce, and overall dimensions are cinch more compact.Due to only setting one group or a pair of magnet on movable part, so as to be set by orientation, the magnetic disturbance at least one direction is reduced so that the driving of camera lens is more accurate.

Description

A kind of lens driver with stabilization function
Technical field
It the utility model is related to a kind of lens driver with stabilization function.
Background technology
With the development of science and technology, all kinds of mobile devices such as wearable device such as tablet personal computer, mobile phone or intelligent watch Will installation minisize pick-up head.Using the said equipment when human hand is taken pictures, due to rocking for hand, cause to shake so that shooting Picture blur, existing the reason for causing picture blur of taking pictures mainly have two aspects:(1)Object moves relative to camera lens, causes The change of picture;(2)The relative deflection with camera lens optical axis initial position of camera lens optical axis, causes the change of picture.
In order to solve the above problems, stabilization cam device typically is used, wherein, OIS(Optical Image Stabilization, optical anti-vibration)It is that small movement is detected by the gyroscope in camera lens, then reaches signal micro- Processor, microprocessor calculates the displacement for needing to compensate immediately, then by compensating lens set, according to the jitter direction of camera lens And displacement is compensated for, so as to effectively overcome because of image blur caused by vibration.But existing OIS optical anti-vibrations use more Four side magnet of moving-magnetic type either four corner magnet, the extraneous magnetic interference of this more difficult resistance of mode, can cause wherein one The magnet of side is caused the skew of eyeglass, camera lens optical axis is relative to deflect with camera lens optical axis initial position, causes by magnetic interference The change of picture, the picture imaging for easily causing shooting are unintelligible.In addition, four sides or corner set the mode of magnet to cause camera lens movable Portion's weight and size are larger, and the requirement to bearing spring is higher, and drive device is difficult to further minimize.
Utility model content
The purpose of this utility model is to provide that a kind of to reduce magnetic disturbance, camera lens movable part in light weight with stabilization function Lens driver.
A kind of lens driver with stabilization function, it includes:Middle part has the pedestal of opening;For fixing lens Microscope base;It is arranged on the magnet holder of the microscope base outer circumferential side;For the microscope base suspension to be supported on into magnet holder inner circumferential side First spring assembly;Along parallel to the lens optical axis direction extension, for by magnet holder support as can along perpendicular to The second spring component of the direction movement of optical axis;For the focus actuator for driving microscope base to be moved along optical axis direction;And it is used for The stabilization actuator that driving microscope base edge is moved perpendicular to the direction of optical axis.Wherein, it is front side to define subject direction side, with being shot The direction side of the body phase back of the body is rear side, and is X-direction perpendicular to the first direction of optical axis, perpendicular to the of optical axis and first direction Two directions are Y direction, then the stabilization actuator includes:The first stabilization coil of the rear side of the magnet holder is fixed on, It is located at the one or both sides of the Y direction of microscope base around the direction winding parallel to optical axis;It is fixed on the pedestal side Second stabilization coil, it is located at the one or both sides of the X-direction of the opening around the direction winding parallel to optical axis;Gu Due in the magnet holder and with the second stabilization coil every empty the first opposed magnet assemblies;And it is fixed on the base Seat side and with the first stabilization coil every empty the second opposed magnet assemblies.
As a kind of embodiment, the lens driver with stabilization function includes the second group of magnets described in two groups Part, respectively positioned at pedestal opening Y direction both sides.Every group of second magnet assemblies include two pieces of bipolar magnets, set side by side Put, gap is left between the adjacent end of two blocks of magnet, two magnetic poles of every block of magnet are set along before and after Y direction.
Preferably, the lens driver with stabilization function also includes the rear side for being fixed on the magnet holder Position detecting element, gap between its inspection center and two blocks of magnet of one group in two group of second magnet assemblies is relative to be set Put.
As a kind of embodiment, the focus actuator includes:Around the focusing coil of X-direction winding, it is fixed on The microscope base on the lateral surface of X-direction and first magnet assemblies, its with it is described focusing coil in X-axis side To every empty opposed.
As a kind of embodiment, the lens driver with stabilization function includes two focusing coils, Be separately fixed at the microscope base on the opposite lateral surface of X-direction.
As a kind of embodiment, the lens driver with stabilization function also includes being fixed on the pedestal Circuit board, the second stabilization coil and the second magnet assemblies are fixed on front side of the circuit board.
As another embodiment, the lens driver with stabilization function also includes being fixed on the pedestal On circuit board, the second stabilization coil is to form plate coil on circuit boards, and second magnet assemblies are fixed on On front side of the circuit board.
In the OIS movable parts of the above-mentioned lens driver with stabilization function, only including one group or a pair of magnet and one group Or a pair of stabilization coils, and another group or a pair of magnet and stabilization coil are arranged in OIS fixed part, so as to the weight of movable part Amount mitigates significantly compared with existing four groups or two pairs of magnet, and the requirement to bearing spring can reduce, and overall dimensions are cinch It is more compact.Due to only setting one group or a pair of magnet on movable part, so as to be set by orientation, at least one direction is reduced Magnetic disturbance so that the driving of camera lens is more accurate.
Brief description of the drawings
Fig. 1 is a kind of exploded perspective view of the lens driver with stabilization function provided by the utility model;
Fig. 2 be Fig. 1 in when stabilization function is not actuated, the position detecting element of the lens driver with stabilization function with Position view of second magnet assemblies on optical axis;
Fig. 3 is position detecting element and the second magnet in Fig. 1 when stabilization actuator drives lens to be moved in X-direction The position view of component in the direction of the optical axis;
Fig. 4 is position detecting element and the second magnet in Fig. 1 when stabilization actuator drives lens to be moved in Y direction The position view of component in the direction of the optical axis.
Embodiment
Lens driver of the utility model with stabilization function is made into one below in conjunction with specific embodiment and accompanying drawing Step is described in detail.
As shown in figure 1, in a preferred embodiment, the lens driver of the present utility model with stabilization function mainly includes Pedestal 1, the circuit board 11 on pedestal 1, the shell 2 being connected with pedestal 1 and be arranged in shell 2 be used for fix Lens(It is not shown)Microscope base 31, be arranged on microscope base 31 outer circumferential side magnet holder 32, for the suspension of microscope base 31 to be supported on First spring assembly 41 of the inner circumferential side of magnet holder 32, for by magnet holder 32 support as can along perpendicular to the direction of optical axis move Dynamic second spring component 51, for the focus actuator 4 that drives microscope base 31 to be moved along optical axis direction and for driving microscope base 31 Along the stabilization actuator 5 moved perpendicular to the direction of optical axis.
Hereinafter, for convenience of describing, it is Z-direction to be defined on optical axis direction, before the subject direction side on optical axis direction is Side, the direction side opposite with subject are rear side, and are X-direction perpendicular to the first direction of optical axis, perpendicular to optical axis and The second direction in one direction is Y direction.Then pedestal 1 is substantially square tabular, and four sides are located at X-direction and Y direction respectively On.Shell 2 is substantially square lid, and it is arranged on front side of the optical axis direction of pedestal 1, and a side is integrally formed after being connected with pedestal 1 Shape housing, so as to form a receiving space for being used to house other each elements between pedestal 1 and shell 2.The top surface of shell 2 is set There is an opening 21 to be used as light inlet, the middle part of pedestal 1 is provided with through hole as light-emitting window.
Circuit board 11 is fixed on the front side surface of pedestal 1, for being controlled to focus actuator and stabilization actuator.
In the present embodiment, microscope base 31 is in octagon column, and middle part is formed through microscope base both ends of the surface for fixing lens Through hole 311.The periphery of magnet holder 32 is square, and middle part forms octagon hole corresponding with the profile of microscope base 31.
First spring assembly 41 divides for front side flat spring 411 and rear side flat spring 412.The inner side of front side flat spring 411 with The anterior end surface connection of microscope base 31, its outside are connected with the anterior end surface of magnet holder.The inner side of rear side flat spring 412 and microscope base 31 back end surface connection, its outside are connected with the back end surface of magnet holder.Front side flat spring and rear side flat spring also have The flexible wrist of its inner side and outer side is connected, so as to which the suspension of microscope base 31 is supported on into the inner circumferential side of magnet holder 32, and Microscope base 31 is set to be moved along the direction of lens axis.
Second spring component 51 is the linear springs extended along the direction parallel to optical axis(Also referred to as bearing spring or suspension Line), one end and the side of pedestal 1(In the present embodiment, with the circuit board 11 being fixed on pedestal)It is connected, the other end and magnet carrier 32 sides(In the present embodiment, with the first spring assembly being fixed in magnet holder)It is connected, for by magnet holder 32(Simultaneously Drive microscope base together)Support as that can be moved along the direction perpendicular to optical axis.Second spring component 51 at least has four straight line bullets Spring, it is separately positioned at the corner of lens driver, namely is connected with the corner of circuit board and flat spring.
Lens driver of the present utility model has focusing and stabilization function simultaneously.Wherein focus actuator 4 is used to drive Index glass seat 31 moves along optical axis direction, and it mainly includes the focusing magnet assemblies 43 of coil 42 and first.In the present embodiment, including two Individual focusing coil 42, winds, and be fixed on the two opposite lateral walls positioned at X-direction of microscope base 31 around X-direction.It is right Focal line circle 42 winds long circle, has two substantially parallel with Y direction long sides and substantially parallel with Z-direction two Short side, in order to preferably drive effect, short side should be as short as possible.First magnet assemblies 43 are fixed on the inner side of magnet holder 32, And correspond and set every sky in X-direction with focusing coil 42.In the present embodiment, including two group of first magnet assemblies 43, point It is not opposed with two focusing coils 42.Every group of first magnet assemblies 43 include two bipolar magnetic set before and after optical axis direction Iron, each magnet is opposed with a long side of coil 42 of focusing, and two magnetic poles of magnet front and rear are in the X-axis direction respectively set Put.
Stabilization actuator 5 is used to drive microscope base 31 to move along the direction perpendicular to optical axis, and it is mainly fixed on magnet holder First stabilization coil 52 of 32 rear side, it is fixed on the side of pedestal 1 and with the first stabilization coil 52 every empty the second opposed magnet Component 53, the first magnet assemblies 43 and it is fixed on the side of pedestal 1 and with the first magnet assemblies 43 every empty the second opposed stabilization Coil 54.
Wherein, the first stabilization coil 52 is around the direction winding parallel to optical axis, and be fixed on magnet holder 32 is located at mirror On the rear side of the both sides of the Y direction of seat, it is similar with focusing coil 42, and in Long Circle, its long side is parallel to X-direction. It should be understood that it be able to can be fixed on formed with pit or similar fixed part, the first stabilization coil 52 on the rear side of magnet holder 32 In pit or similar fixed part.
Second stabilization coil 54 is fixed on the X-direction of the opening of circuit board 11 around the direction winding parallel to optical axis Both sides, it is also in Long Circle, and its long side is parallel to Y direction, each long side one group of magnetic with the first magnet assemblies 43 respectively One magnetic pole of the magnet rearward in iron is oppositely arranged in optical axis direction.
In the present embodiment, including two group of second magnet assemblies 53, it is separately fixed on the circuit board of pedestal 1, and be located at base The both sides of the Y direction of seat opening.Every group of second magnet assemblies 53 include two pieces of bipolar magnets, are located at Y direction along pedestal Side be arranged side by side, gap is left between the adjacent end of two blocks of magnet, two magnetic poles of every block of magnet are set along before and after Y direction Put, and a long side of each magnetic pole all with the first stabilization coil 52 is oppositely arranged in optical axis direction.
In order to be powered to the stabilization coil 52 of focusing coil 42 and first vacantly at drive device center, front side flat spring 411 are formed as independent two parts, by wire and focusing coil 42 be electrically connected with, and respectively with second spring component 51 Two linear springs are electrically connected with, and this two linear springs are electrically connected with circuit board 11 again, the power supply as focusing coil 42 Path.Rear side flat spring 412 is again formed as independent two parts, is electrically connected with by wire and the first stabilization coil 52, and point Other two linear springs not with second spring component 51 are electrically connected with, and the two linear springs electrically connect with circuit board 11 Connect, the supply path as the first stabilization coil 52.Second stabilization coil 54 is fixed on circuit board 11, can directly and circuit board 11 are electrically connected with.
In work, when coil 42 of focusing is powered, by optical axis direction in magnetic field caused by the first magnet assemblies 43 It Loulun magnetism, may be such that microscope base moves along optical axis direction, and then realize focus function.When detecting that shake occurs, circuit board 11 to the first stabilization coil 52, or to the second stabilization coil 54, or powered simultaneously to the first and second stabilization coils 52,54, make The stabilization coil that must be in magnetic field is by X-direction or the long-range navigation of the compound direction of Y direction or X-direction and Y direction Hereby power, so as to control microscope base to be moved perpendicular to the direction of optical axis, caused influence is shaken to offset, realizes optical anti-vibration work( Energy.
In addition, stabilization actuator 5 also includes the position detecting element 6 for being fixed on the rear side of magnet holder 32, position detection The gap between one group of two blocks of magnet in the inspection center of element 6 and the second magnet assemblies 53 is oppositely arranged, detection range Cover the adjacent end of two blocks of magnet.Fig. 2 show stabilization function it is not actuated when, and when lens driver is not shaken, The position relationship of the magnet assemblies 53 of position detecting element 6 and second in the direction of the optical axis.Fig. 3 is shown when stabilization actuator 5 drives Dynamic lens are when X-direction moves, the position relationship of the magnet assemblies 53 of position detecting element 6 and second in the direction of the optical axis.Fig. 4 Show that the magnet assemblies 53 of position detecting element 6 and second are in light when stabilization actuator 5 drives lens to be moved in Y direction Position relationship on direction of principal axis.Position detecting element 6 is used to detect changes of magnetic field, and the computing unit on circuit board can be according to detection To changes of magnetic field obtain magnet holder 32 in the particular location perpendicular to optical axis direction, form closed-loop control.In the present embodiment Using Hall element, Hall element may be provided at front side or the rear side of the first stabilization coil.
In the actuator of the above-mentioned lens driver with stabilization function, the part supported by second spring component 51 is only Including two groups(A pair)First magnet assemblies 43, a pair of focusing coils 42 and a pair of first stabilization coils 52.With existing four side or The four groups of magnet and a focusing coil that corner is set are compared, and the weight for the movable part that second spring component 51 is supported is lighter, So as to which motional inertia reduces, the intensity requirement of second spring component 51 will be reduced, reaction is sensitiveer when OIS drives, more easily-controllable System, and more compact structure.In addition, only X-direction is provided with magnet in magnet holder, so as to when lens driver is in Y When magnetic field on the outside of direction of principal axis be present, it is not easy the work to lens driver and produces interference, device can normal work.It is also convenient for Form dual camera.
In the present embodiment, the second stabilization coil 54 is independent enwinding type coil, is fixed on the front side of circuit board 11, other realities Apply in example, the second stabilization coil 54 can be to form plate coil on circuit boards by the mode such as etching.It is right in the present embodiment Focal line circle 42 is two coils in two opposite outsides for being fixed on microscope base, in other embodiment, per side settable two or Coil above, so as to have the focusing coil of four or more altogether.Corresponding first magnet assemblies are removable to be divided into multiple magnet. Similar, each first stabilization coil 52 can also be substituted by two or more coils being arranged side by side.Second magnet assemblies It can be directly anchored on pedestal.Every group of second magnet assemblies may also comprise three or more magnet being arranged side by side, adjacent Formed with space between magnet.In addition, Hall element can be all set in X-direction and Y direction, so as to there are two Hall members Part, it is respectively used to detect movement position of the microscope base in X-direction and Y direction.
In other embodiments, one group of focusing coil and one group of first magnet assemblies can be only set, that is, only in microscope base The side of X-direction sets one group of focusing coil and the first magnet assemblies, opposite side to be not provided with.So as in composition dual camera When, it can be acted together by another group of focus actuator of another lens driver.
Although to description of the present utility model being carried out with reference to embodiments above, it is familiar with the art Personnel many replacements, modifications and variations can be carried out according to above-mentioned content, are obvious.Therefore, it is all such Substitute, improve and change and be included in the spirit and scope of appended claims.

Claims (7)

  1. A kind of 1. lens driver with stabilization function, it is characterised in that including:
    Middle part has the pedestal of opening;
    For fixing the microscope base of lens;
    It is arranged on the magnet holder of the microscope base outer circumferential side;
    For the microscope base suspension to be supported on to the first spring assembly of magnet holder inner circumferential side;
    Along the direction extension of the optical axis parallel to the lens, for magnet holder to be supported as can be along perpendicular to the direction of optical axis Mobile second spring component;
    For the focus actuator for driving microscope base to be moved along optical axis direction;And
    For driving microscope base along the stabilization actuator moved perpendicular to the direction of optical axis;
    Wherein, it is front side to define subject direction side, and the direction side opposite with subject is rear side, and perpendicular to the first of optical axis Direction is X-direction, is Y direction perpendicular to the second direction of optical axis and first direction, then the stabilization actuator includes:
    The first stabilization coil of the rear side of the magnet holder is fixed on, it is located at mirror around the direction winding parallel to optical axis The one or both sides of the Y direction of seat;
    The second stabilization coil of the pedestal side is fixed on, it is located at the opening around the direction winding parallel to optical axis X-direction one or both sides;
    It is fixed in the magnet holder and with the second stabilization coil every empty the first opposed magnet assemblies;And
    It is fixed on the pedestal side and with the first stabilization coil every empty the second opposed magnet assemblies.
  2. 2. the lens driver according to claim 1 with stabilization function, it is characterised in that including second described in two groups Magnet assemblies, respectively positioned at pedestal opening Y direction both sides;Every group of second magnet assemblies include two pieces of bipolar magnets, It is arranged side by side, gap is left between the adjacent end of two blocks of magnet, two magnetic poles of every block of magnet is set along before and after Y direction.
  3. 3. the lens driver according to claim 2 with stabilization function, it is characterised in that also described including being fixed on The position detecting element of the rear side of magnet holder, its inspection center and one group of two blocks of magnet in two group of second magnet assemblies it Between gap be oppositely arranged.
  4. 4. the lens driver according to claim 1 with stabilization function, it is characterised in that the focus actuator bag Include:
    Around X-direction winding focusing coil, its be fixed on the microscope base on the lateral surface of X-direction;And
    First magnet assemblies, it is opposed every sky in X-direction with the focusing coil.
  5. 5. the lens driver according to claim 4 with stabilization function, it is characterised in that including two focusings Coil, be separately fixed at the microscope base on the opposite lateral surface of X-direction.
  6. 6. the lens driver according to claim 4 with stabilization function, it is characterised in that also described including being fixed on Circuit board on pedestal, the second stabilization coil and the second magnet assemblies are fixed on front side of the circuit board.
  7. 7. the lens driver according to claim 4 with stabilization function, it is characterised in that also described including being fixed on Circuit board on pedestal, the second stabilization coil are to form plate coil on circuit boards, and second magnet assemblies are consolidated On front side of the circuit board.
CN201720840144.7U 2017-07-12 2017-07-12 A kind of lens driver with stabilization function Withdrawn - After Issue CN207081926U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720840144.7U CN207081926U (en) 2017-07-12 2017-07-12 A kind of lens driver with stabilization function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720840144.7U CN207081926U (en) 2017-07-12 2017-07-12 A kind of lens driver with stabilization function

Publications (1)

Publication Number Publication Date
CN207081926U true CN207081926U (en) 2018-03-09

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CN201720840144.7U Withdrawn - After Issue CN207081926U (en) 2017-07-12 2017-07-12 A kind of lens driver with stabilization function

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107329348A (en) * 2017-07-12 2017-11-07 惠州大亚湾三美达光学技术有限公司 A kind of lens driver with stabilization function
CN114174917A (en) * 2019-07-26 2022-03-11 阿尔卑斯阿尔派株式会社 Lens driving device and camera module

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107329348A (en) * 2017-07-12 2017-11-07 惠州大亚湾三美达光学技术有限公司 A kind of lens driver with stabilization function
CN107329348B (en) * 2017-07-12 2022-12-30 惠州萨至德光电科技有限公司 Lens driving device with anti-shake function
CN114174917A (en) * 2019-07-26 2022-03-11 阿尔卑斯阿尔派株式会社 Lens driving device and camera module

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GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20211222

Address after: Xiangshuihe Industrial Park, Dayawan Economic and Technological Development Zone, Huizhou City, Guangdong Province

Patentee after: Huizhou Sazhide Optoelectronics Technology Co.,Ltd.

Address before: 516083 4th floor, No.6 workshop, Yongchang electronics company, Xiangshuihe Industrial Park, Daya Bay, Huizhou City, Guangdong Province

Patentee before: HUIZHOU DAYA BAY JSS OPTICAL TECHNOLOGY Co.,Ltd.

Patentee before: HUIZHOU DAYA BAY EVER BRIGHT ELECTRONICS & INDUSTRIAL Co.,Ltd.

Patentee before: JSS OPTICAL TECHNOLOGY Co.,Ltd.

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Granted publication date: 20180309

Effective date of abandoning: 20221230

AV01 Patent right actively abandoned

Granted publication date: 20180309

Effective date of abandoning: 20221230

AV01 Patent right actively abandoned
AV01 Patent right actively abandoned