CN108282618A - Optical device stabilization mechanism - Google Patents
Optical device stabilization mechanism Download PDFInfo
- Publication number
- CN108282618A CN108282618A CN201810102331.4A CN201810102331A CN108282618A CN 108282618 A CN108282618 A CN 108282618A CN 201810102331 A CN201810102331 A CN 201810102331A CN 108282618 A CN108282618 A CN 108282618A
- Authority
- CN
- China
- Prior art keywords
- cover board
- driving
- mobile mechanism
- optical device
- movable frame
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/681—Motion detection
- H04N23/6812—Motion detection based on additional sensors, e.g. acceleration sensors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Adjustment Of Camera Lenses (AREA)
Abstract
A kind of optical device stabilization mechanism, including：The mobile mechanism being movably set between cover board and pedestal, wherein：Cover board is equipped with electromagnetic field dynamic generation mechanism, and corresponding mobile mechanism is equipped with driving magnetite group, to realize the dynamic stabilization based on magnetic force.The present invention can realize magnet and leading axle and deposit, and reduce abrasion, enhance service life.
Description
Technical field
The present invention relates to a kind of technology of field of optical equipment, specifically a kind of optical device stabilization mechanisms.
Background technology
Existing hand-held optical equipment can not avoid the slight vibration from hand or outside during use so that light
Axis is shaken in shooting process.Therefore, for optics list for shooting used in Optical devices for shooting of carrying etc.
Member, it is proposed that such technology：Movable module is supported on fixed body by elastomer, and on each side of movable module
Constitute using piezoelectric element actuator, according to the testing result of handshaking detection sensor make movable module around with actuator light
The orthogonal X-axis of axis direction (Z-direction) and Y-axis are swung, handshaking to correct.
Invention content
The present invention is directed to deficiencies of the prior art, proposes a kind of optical device stabilization mechanism, realize magnet with
Leading axle is simultaneously deposited, and abrasion is reduced, and enhances service life.
The present invention is achieved by the following technical solutions：
The present invention includes：The mobile mechanism being movably set between cover board and pedestal, wherein：Cover board is dynamic equipped with electromagnetic field
State generating mechanism, corresponding mobile mechanism are equipped with driving magnetite group, to realize the dynamic stabilization based on magnetic force.
The mobile mechanism includes：Movable frame, the inductor being set on movable frame and the flexibility being connected with inductor
Circuit board.
The electromagnetic field dynamic generation mechanism includes：For incuding the change in location of mobile mechanism in the horizontal direction
Position sensor, four groups of driving coils and the circuit connecting wire being attached thereto, wherein：Driving coil generates magnetic field simultaneously after by electricity
Magnetic force is generated to driving magnetite group so that mobile mechanism can move freely in the horizontal plane and high-precision control.
It is equipped with position-limit mechanism between the mobile mechanism, cover board, which passes through the guiding that is set on cover board
Axis realizes plane motion of the movable frame of mobile mechanism in moving process, and removes rotation of the movable frame around optical axis direction.
The holding magnetite group that two vertical pairs direction attracts each other is respectively equipped on the cover board and mobile mechanism so that nothing
In the case that electric current drives, ensure that the sensor on movable frame is located at initial position.
The cover board is equipped with the position limiting structure for limiting mobile mechanism's displacement, which is to be set on cover board
Convex ribs are bent, mobile mechanism is contained in the space that bending convex ribs surround.
Mutually fixed and flexible PCB has at least two bending structures to the flexible PCB with movable frame.
The mode of clearance fit is taken between the leading axle and mobile mechanism and cover board and equipped with lubricant layer to big
The big frictional force for reducing sliding friction.
Technique effect
Compared with prior art, the structure that the present invention uses magnet and guide shaft and deposits, in vertical in mobile mechanism and cover board
Histogram is to holding magnetite group is equipped with, and in certain distance, mobile mechanism can be attracted by cover board.Attract the structure to suspend simple and
Installation magnetite group can be very good the position that ensure that movable frame relative to bottom plate in vertical direction, to ensure that position essence
Degree.In certain distance, ensures that movable frame attracts with cover board, and in the case where no current drives, ensure on movable frame
Sensor is located at original design position, and stabilization function can be closed when without using stabilization function, to enhance service life.This
Device set there are two can be kept when mobile mechanism can be very good to ensure that main mobile mechanism's movement in horizontal plane it is mobile simultaneously
And movable frame will not be around the rotation of optical axis direction.Ceramic Balls are installed between mobile mechanism and cover board, Ceramic Balls make moving member and
Pedestal is always ensured that movable frame smooth motion in given plane, and centre has Ceramic Balls to do rolling friction as intermediate medium.Lid
There is the mechanism to the limitation of mobile mechanism horizontal position on plate so that moving member, which does not deviate by, too far leads to moving member abjection stabilization dress
It sets.Frictional dissipation of the present invention is small, and heat resistance is good, and precision is high, and service life is long.
Description of the drawings
Fig. 1 is one of dimensional structure diagram of the present invention；
Fig. 2 is the two of dimensional structure diagram of the present invention；
Fig. 3 is one of the decomposition texture schematic diagram of pedestal of the present invention, moving assembly and cover board；
Fig. 4 is the two of the decomposition texture schematic diagram of pedestal of the present invention, moving assembly and cover board；
Fig. 5 is one of cover board of the present invention and the structural schematic diagram of mobile mechanism；
Fig. 6 is the second structural representation of cover board of the present invention and mobile mechanism；
Fig. 7 is mobile mechanism's structural schematic diagram of the present invention；
Fig. 8 is one of covering plate structure schematic diagram of the present invention；
Fig. 9 is the two of covering plate structure schematic diagram of the present invention；
Figure 10 is position-limit mechanism schematic diagram of the present invention；
Figure 11 is magnetic group scheme of installation；
Figure 12 is driving coil of the present invention and driving magnetite packet size figure；
In figure：Pedestal 1, cover board 3, position-limit mechanism 4, keeps magnetite group 5, mobile ball 6, leading axle 7, drives at mobile mechanism 2
It is dynamic magnetite group 8, induced magnet group 9, position sensor 10, driving coil 11, movable frame 21, anti-dazzling screen 22, inductor 211, soft
212, bending 212-1 of property circuit board, secondary bending 212-2, screw 213, nut 214, metal film trap 215, guide shaft seat
216, recessed hole 217, anti-dazzling screen 22, circuit connecting wire 31, position limiting structure 32, ball grooves 33, gas vent 35, guide shaft seat 34, peace
Tankage 36, sheet metal 61.
Specific implementation mode
As shown in Figure 1, the present embodiment includes：The mobile mechanism 2 being movably set between cover board 3 and pedestal 1, wherein：Lid
Plate 3 is equipped with electromagnetic field dynamic generation mechanism, and corresponding mobile mechanism 2 is equipped with driving magnetite group 8, to realize based on magnetic force
Dynamic stabilization.
As Figure 7-8, the mobile mechanism 2 includes：Movable frame 21, the inductor 211 for being set on movable frame 21
The flexible PCB 212 being connected with inductor 211, wherein：Inductor is fixed on by three nuts 214 on movable frame 21,
Three nuts 214 are in angular distribution.
The anti-dazzling screen 22 for filtering off veiling glare is further provided among the inductor and movable frame 21.
As Figure 7-8, the flexible PCB 212 is fixed with 21 phase of movable frame and uses bending at least twice
The structure of (bending a 212-1, secondary bending 212-2), each bending part only by the power in a direction, avoid the production of torsion
It is raw.And the outlet direction of the flexible PCB 212 is parallel with the moving direction of movable frame 21 and increases moveable length
It is suffered when reducing mobile to pull power, to increase the service life of flexible PCB 212.It is soft compared to general bending
Property circuit board for, using multiple brake techniques and by the setting of the outgoing line position of flexible PCB 212 and the movement of movable frame 21
Parallel can effectively reduce in direction only can be by the pulling force in a direction without by from other when movable frame 21 moves
The power in direction can more effectively ensure the service life of flexible PCB 212 to generate extra torsion.And flexible electrical
The length of road plate 212 can reduce pulling force suffered in unit there are enough surpluses when moving, in this way can be more effective
Increase the service life of flexible PCB 212.
The electromagnetic field dynamic generation mechanism includes：For incuding the change in location of mobile mechanism 2 in the horizontal direction
Position sensor 10, four groups of driving coils 11 and the circuit connecting wire 31 that is attached thereto, wherein：Driving coil 11 is after by electricity
It generates magnetic field and magnetic force is generated to driving magnetite group 8 so that mobile mechanism 2 can move freely in the horizontal plane and high-precision
Control.
As shown in figures 4-9, position-limit mechanism 4 is equipped between the mobile mechanism 2, cover board 3, the position-limit mechanism 4 is by setting
The leading axle 7 being placed on cover board 3 realizes plane motion of the movable frame 21 of mobile mechanism 2 in moving process, and removes movement
Rotation of the frame 21 around optical axis direction.Leading axle 7 is separately mounted to the guide shaft seat 216 in mobile mechanism 2 and the guide shaft seat on cover board 3
In 34.
Taken between the leading axle 7 and mobile mechanism 2 and cover board 3 mode of clearance fit and equipped with lubricant layer to
Greatly reduce the frictional force of sliding friction.Compared to the common driving mechanism for being only mounted with driving coil and drive magnet
Speech, install the position-limit mechanism 4 can effectively guarantee mobile mechanism 2 only planar moved and ensure that mobile mechanism
2 when planar moving will not because the magnetic force suffered by four sides is uneven and there is a phenomenon where crooked in plane.
The mobile ball 6 for limiting and reducing frictional force is equipped between cover board 3 and mobile mechanism 2, this spacing is
The axial spacing that mobile mechanism 2 is laminated with pedestal 1 and cover board 3.
As shown in figure 9, being respectively equipped with what at least two vertical pairs direction attracted each other in the cover board 3 and mobile mechanism 2
Keep magnetite group 5 so that in certain distance, which ensures that movable frame 23 attracts with cover board 3, and in no electricity
In the case of stream driving, ensure that the sensor 21 on movable frame 23 is located at initial position, i.e., it can be with when without using stabilization function
Close stabilization function；The holding magnetite group 5 is preferably fixed by the mounting groove 36 being set on cover board 3, passes through dispensing after installation
It is fixed.
As shown in figure 9, the cover board 3 is equipped with the position limiting structure 32 for limiting 2 displacement of mobile mechanism, the position limiting structure 32
To be set to the bending convex ribs on cover board 3, mobile mechanism 2 is contained in the space that bending convex ribs surround.
As shown in figs. 3-9, the driving magnetite group 8, holding magnetite group 5 are made of two driving magnetites, each to drive
Dynamic magnetite and keep the south poles of magnetite at the both ends of its thickness direction, two driving magnetites are arranged side by side and coplanar pole is to phase
Instead；And the magnetic force of two groups of holding magnetite groups 5 is much smaller than the magnetic force of driving magnetite group 8, more convenient for the movement of mobile mechanism 2,
I.e.：Fcoil>>FIt keeps+FWeight+FFriction, wherein：FcoilFor the driving magnetic force that driving magnetite group 8 generates, FIt keepsTo keep magnetite group 5 to generate
Holding magnetic force, FWeightFor the gravity of itself of mobile mechanism 2, FFrictionThe frictional force generated when being mobile.
The magnetic force of above-mentioned holding magnetite group 5 can be according to the depth of magnetite mounting groove, and size of magnetite block etc. adjusts.
As shown in Fig. 3-12, driving coil 11 and the driving magnetite group 8 in mobile mechanism 2 that the cover board 3 is equipped with
It is four respectively corresponding, and the cross section size of driving coil 11 need to be less than 8 size of driving magnetite group.
When the size of driving magnetite group 8 and driving coil 11 meets：W1-W2>2 Δ d and L1-L2>2 Δ d, wherein：Driving
The length of coil 11 is that L1 width is W1, and it is W2 that the length of driving coil 11, which is L2 width, and Δ d is the unilateral movement of movable frame 21
Distance.This structure design can preferably ensure that uniform force will not be because of 21 movement of movable frame when movable frame 21 moves
The phenomenon that generating unbalance stress afterwards.Structure driving mobile mechanism 2 moves in the horizontal direction.Drive each driving coil 11 single
Solely driven using sequential electric current.
As Figure 7-9, the ball 6 be three, structure distribution triangular in shape on cover board 3, mobile mechanism 2 with
Between cover board 3, material is selected as ceramic bead, ensures the smooth motion in given plane of movable frame 21, and ceramic bead service life
It is long, meet stabilization life requirements.
As shown in Figure 10, the installation position that driving coil 11 is installed on the cover board 3 is equipped with gas vent 35, is continuously moving
When, driving coil 11 is generated heat seriously, and increase heat dissipation has good promotion to properties of product.
As Figure 7-8, the fixing nut 214 is connected in the recessed hole 217 of movable frame 21, then with screw 213
Sensor 211 and flexible PCB 212 are fixed on movable frame 21 by cooperation.
As is seen in figs 7-10, it is respectively equipped on the opposite side of the cover board 3 and mobile mechanism 2 and to be in contact with ball 6
Sheet metal 61, ball 6 are clipped between upper and lower two sheet metals 61, and the one side that sheet metal 61 is contacted with ball 6 is equipped with lubrication
Layer, when doing rolling friction, lubricating grease plays the role of reducing abrasion, increases the service life.
The ball 6 is preferably that ceramics are made, and can increase service life.Cover board 3 is equipped with ball grooves 33, moving machine
The movable frame 21 of structure 2 is equipped with metal film trap 215, and about 6 two sheet metals 61 of ball are respectively arranged at ball grooves 33 and metal
In film trap 215, when ball 6 and two sheet metals 61 offset, moved in ball grooves 33.The length of side of ball grooves 33 is greater than ball
The sum of 6 diameter and twice of unilateral displacement distance of movable frame 21.
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the principle of the invention and objective with difference
Mode carry out local directed complete set to it, protection scope of the present invention is subject to claims and not by above-mentioned specific implementation institute
Limit, each implementation within its scope is by the constraint of the present invention.
Claims (12)
1. a kind of optical device stabilization mechanism, which is characterized in that including：The moving machine being movably set between cover board and pedestal
Structure, wherein：Cover board is equipped with electromagnetic field dynamic generation mechanism, and corresponding mobile mechanism is equipped with driving magnetite group, to realize base
In the dynamic stabilization of magnetic force；
The mobile mechanism includes：Movable frame, the inductor being set on movable frame and the flexible circuit being connected with inductor
Plate.
2. optical device stabilization according to claim 1 mechanism, characterized in that the electromagnetic field dynamic generation mechanism packet
It includes：Position sensor, four groups of driving coils and circuit for incuding the change in location of mobile mechanism in the horizontal direction connect
Wiring, wherein：Driving coil generates magnetic field and generates magnetic force to driving magnetite group after by electricity so that mobile mechanism can be in level
It is moved freely on face and high-precision control.
3. optical device stabilization according to claim 1 or 2 mechanism, characterized in that between the mobile mechanism, cover board
Equipped with position-limit mechanism, which realizes the movable frame of mobile mechanism in moving process by the leading axle being set on cover board
In plane motion, and remove movable frame around optical axis direction rotation.
4. optical device stabilization according to claim 1 mechanism, characterized in that on the cover board and mobile mechanism respectively
The holding magnetite group to attract each other equipped with two vertical pairs direction so that in the case that no current drives, ensure the biography on movable frame
Sensor is located at initial position.
5. optical device stabilization according to claim 1 mechanism, characterized in that the cover board, which is equipped with, limits moving machine
The position limiting structure of structure displacement, the position limiting structure are the bending convex ribs being set on cover board, and mobile mechanism is contained in bending convex ribs and encloses
At space in.
6. optical device stabilization according to claim 1 mechanism, characterized in that the flexible PCB and movable frame phase
Fixed and flexible PCB has at least two bending structures.
7. optical device stabilization according to claim 1 mechanism, characterized in that the leading axle and mobile mechanism and lid
The mode of clearance fit is taken between plate and the frictional force of sliding friction is thus greatly reduced equipped with lubricant layer.
8. optical device stabilization according to claim 1 mechanism, characterized in that set between the cover board and mobile mechanism
It is useful for limiting and reducing the mobile ball of frictional force.
9. optical device stabilization according to claim 4 mechanism, characterized in that the driving magnetite group keeps magnetite
Group be made of two driving magnetites, each to drive the south poles of magnetite and holding magnetite at the both ends of its thickness direction, two
Drive that magnetite is arranged side by side and coplanar pole is to opposite；And the magnetic force of two groups of holding magnetite groups is much smaller than the magnetic of driving magnetite group
Power, i.e.,：Fcoil>>FIt keeps+FWeight+FFriction, wherein：FcoilFor the driving magnetic force that driving magnetite group generates, FIt keepsTo keep magnetite group to generate
Holding magnetic force, FWeightFor the gravity of mobile mechanism itself, FFrictionThe frictional force generated when being mobile.
10. optical device stabilization according to claim 2 mechanism, characterized in that the driving magnetite group and driving line
Circle meets：W1-W2>2 Δ d and L1-L2>2 Δ d, wherein：The length of driving coil 11 is that L1 width is W1, driving coil 11
Length is that L2 width is W2, and Δ d is the distance of the unilateral movement of movable frame 21.
11. optical device stabilization according to claim 8 mechanism, characterized in that the phase of the cover board and mobile mechanism
The sheet metal being in contact with ball is respectively equipped on offside, ball is clipped between upper and lower two sheet metals, and sheet metal connects with ball
Tactile one side is equipped with lubricant layer.
12. optical device stabilization according to claim 11 mechanism, characterized in that the cover board is equipped with ball grooves,
The movable frame of mobile mechanism is equipped with metal film trap, and two sheet metals are respectively arranged at ball grooves and metal film trap to ball up and down
It is interior, when ball and two sheet metals offset, moved in ball grooves；The length of side of ball grooves is greater than the diameter and movable frame of ball
The sum of twice of unilateral displacement distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102331.4A CN108282618A (en) | 2018-02-01 | 2018-02-01 | Optical device stabilization mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102331.4A CN108282618A (en) | 2018-02-01 | 2018-02-01 | Optical device stabilization mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108282618A true CN108282618A (en) | 2018-07-13 |
Family
ID=62807290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810102331.4A Pending CN108282618A (en) | 2018-02-01 | 2018-02-01 | Optical device stabilization mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108282618A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233957A (en) * | 2019-06-04 | 2019-09-13 | 深圳市华芯技研科技有限公司 | A kind of rotary type binocular 3D panorama camera |
| WO2021092854A1 (en) * | 2019-11-14 | 2021-05-20 | 南昌欧菲光电技术有限公司 | Circuit board, camera module, and mobile terminal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010271415A (en) * | 2009-05-19 | 2010-12-02 | Olympus Imaging Corp | Shake correcting device |
| CN106125453A (en) * | 2016-08-24 | 2016-11-16 | 中山联合光电科技股份有限公司 | A kind of novel lens stabilization mechanism |
| CN206421133U (en) * | 2017-01-11 | 2017-08-18 | 广州市松诺电子有限公司 | A kind of spring-piece type camera lens dithering compensation device |
-
2018
- 2018-02-01 CN CN201810102331.4A patent/CN108282618A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010271415A (en) * | 2009-05-19 | 2010-12-02 | Olympus Imaging Corp | Shake correcting device |
| CN106125453A (en) * | 2016-08-24 | 2016-11-16 | 中山联合光电科技股份有限公司 | A kind of novel lens stabilization mechanism |
| CN206421133U (en) * | 2017-01-11 | 2017-08-18 | 广州市松诺电子有限公司 | A kind of spring-piece type camera lens dithering compensation device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233957A (en) * | 2019-06-04 | 2019-09-13 | 深圳市华芯技研科技有限公司 | A kind of rotary type binocular 3D panorama camera |
| WO2021092854A1 (en) * | 2019-11-14 | 2021-05-20 | 南昌欧菲光电技术有限公司 | Circuit board, camera module, and mobile terminal |
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Address after: 314000 No.188, Taojing Road, Gaozhao street, Xiuzhou District, Jiaxing City, Zhejiang Province Applicant after: Jiaxing Zhongrun Optical Technology Co.,Ltd. Address before: 314000 Room 2F201-6, Building 6, Jiaxing Photovoltaic Science Park, 1288 Kanghe Road, Xiuzhou District, Jiaxing City, Zhejiang Province Applicant before: JIAXING ZHONGRUN OPTICAL SCIENCE AND TECHNOLOGY Co.,Ltd. |