CN106773451A - The implementation method of camera module optical anti-vibration - Google Patents
The implementation method of camera module optical anti-vibration Download PDFInfo
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- CN106773451A CN106773451A CN201611217668.7A CN201611217668A CN106773451A CN 106773451 A CN106773451 A CN 106773451A CN 201611217668 A CN201611217668 A CN 201611217668A CN 106773451 A CN106773451 A CN 106773451A
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- coil
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- magnetic part
- camera lens
- lens module
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
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- General Physics & Mathematics (AREA)
- Adjustment Of Camera Lenses (AREA)
Abstract
The present invention provides a kind of implementation method of camera module optical anti-vibration, the camera module includes that the camera module includes module iron-clad, image-forming module, camera lens module, coil and some magnetic parts, the coil is set parallel to optical axis direction, and the magnetic part is fixedly arranged on the camera lens module outside：It is directly or indirectly the coil power supply, the coil matches the electromagnetic force for producing radially with the magnetic part, the electromagnetic force radially drives the magnetic part movement, and the magnetic part drives the camera lens module to move radially together, realizes optical anti-vibration.
Description
Technical field
The present invention relates to camera module technical field, more particularly to a kind of realization side of camera module optical anti-vibration
Method.
Background technology
The camera module group such as including the lens unit with lens barrel, housing, the imaging unit with photo-sensitive cell
Part.General, camera module has automatic focusing（AF, Auto Focus）Function.Additionally, camera module also has optics
Stabilization (OIS, opticalimage stabilization) function, to reduce when shooting because the shake of the hand of operator is led
The reduction of the resolution ratio of cause.Camera module with above-mentioned functions has following structure：Lens unit can be relative to camera
The housing of module is moved along optical axis direction or the direction vertical with optical axis.
Optical anti-vibration technology detects small movement using the gyroscope in camera lens, and can reach dither signal micro-
Processor, microprocessor is calculated immediately needs the displacement of compensation, then by compensating lens set or mobile photo-sensitive cell, according to
Jitter direction and displacement are compensated for, so as to farthest reduce operator in use because shake causes image
It is unstable.
The content of the invention
It is an object of the invention to provide a kind of implementation method of camera module optical anti-vibration, camera module is improved
Image quality.
In order to solve the above-mentioned technical problem, the present invention provides a kind of implementation method of camera module optical anti-vibration, and it is special
Levy and be, the camera module includes module iron-clad, image-forming module, camera lens module, coil and some magnetic parts, the line
Circle is set parallel to optical axis direction, and the magnetic part is fixedly arranged on the camera lens module outside：
It is directly or indirectly the coil power supply, the coil matches the electromagnetic force for producing radially, institute with the magnetic part
The electromagnetic force stated radially drives the magnetic part movement, and the magnetic part drives the camera lens module radially to move together
It is dynamic, realize optical anti-vibration.
Optionally, the camera module also includes：Clamp elastomer or the camera lens module folder of the camera lens module
The elastomer held, the elastomer is located at surrounding symmetrical around the camera lens module respectively；The elastomer and the camera lens
Interaction force is provided between module, the frictional force that the interaction force is provided is more than or equal to the gravity of camera lens module to provide
Camera lens module is axially supported, and provides movement of the camera lens module perpendicular to axial direction.
Optionally, the camera module includes：At least two first groups of magnetic parts, it is matched with described at least two
One group of at least two first coil of magnetic part, at least two first coil it is discrete be arranged at the module iron-clad
Four walls inner side, described at least two first groups of discrete outsides for being fixedly arranged on the camera lens module of magnetic part；
The first electric current is provided in the first coil, the first coil matches generation with first group of magnetic part radially
Electromagnetic force, the electromagnetic force radially drives first group of magnetic part motion, to drive the camera lens module along footpath
To movement, optical anti-vibration is realized.
Optionally, by detecting the inductance of the coil, determine that the position between the magnetic part and the coil is closed
System, realizes the closed-loop control of optical anti-vibration.
Optionally, the module iron-clad corresponds to the outside setting hole of the coil, it is to avoid the magnetic part
Influenceed by the magnetic force of correspondence position.
Optionally, the material of the module iron-clad is nonmagnetic substance.
Optionally, the camera module also includes：Second group of magnetic part, the second group of magnetic part being matched with
The second coil, on camera lens module, second group of magnetic part is fixedly arranged on inside module iron-clad second coil configuration；
The second electric current is provided in second coil, second coil matches generation vertically with second magnetic part
Electromagnetic force, the electromagnetic force vertically drives second coil movement, to drive the camera lens module to be axially moveable.
Optionally, the distance between the regulation magnetic part and described second group of magnetic part, shape or position relationship,
Increase magnetic line of force component of the magnetic part parallel to the coil, it is ensured that the performance of optical anti-vibration.
Optionally, the coil is connected by slide rail with the elastomer, and the slide rail surface is coated with conductive layer, to increase
Electric conductivity.
Relative to prior art, the implementation method of camera module optical anti-vibration of the present invention at least has following beneficial effect
Really：
It is directly or indirectly the coil power supply in the present invention, the coil is matched with the magnetic part and produced radially
Electromagnetic force, the electromagnetic force radially drives the magnetic part movement, real to drive the camera lens module to move radially
Existing optical anti-vibration.
Brief description of the drawings
Fig. 1 is the structural representation of camera module in one embodiment of the invention；
Fig. 2 is the structural representation of one embodiment of the invention elastomer；
Fig. 3 is the structural representation of module iron-clad in one embodiment of the invention.
Specific embodiment
Elaborate many details in order to fully understand the present invention in the following description.But the present invention can be with
Much it is different from other manner described here to implement, those skilled in the art can be in the situation without prejudice to intension of the present invention
Under do similar popularization, therefore the present invention is not limited by following public specific implementation.
Secondly, the present invention is described in detail using schematic diagram, when the embodiment of the present invention is described in detail, for purposes of illustration only, institute
It is example to state schematic diagram, and it should not limit the scope of protection of the invention herein.
In order in solving the problems, such as background technology, in the implementation method of the camera module optical anti-vibration that the present invention is provided,
It is directly or indirectly the coil power supply, the coil matches the electromagnetic force for producing radially, the edge with the magnetic part
The electromagnetic force of radial direction drives the magnetic part movement, and the magnetic part drives the camera lens module to move radially together,
Realize optical anti-vibration.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with accompanying drawing to the present invention
The implementation method of camera module optical anti-vibration be described in detail.
Camera module of the present invention include base, the module iron-clad on base, the image-forming module above base,
Camera lens module, coil and some magnetic parts above image-forming module, also, the coil sets parallel to optical axis direction
Put, be directly or indirectly the coil power supply, the coil matches the electromagnetic force for producing radially with the magnetic part, described
The electromagnetic force of radial direction drives the magnetic part movement, to drive the camera lens module to move radially, realizes optical anti-vibration.
Specifically, with reference to shown in Fig. 1, the camera module includes first group of magnetic part 12 and is matched with described the
One group of first coil of magnetic part 12 11, first group of magnetic part 12 is fixedly arranged on the outside of the camera lens module, described
First coil 11 is fixedly arranged on the inside of module iron-clad, and first coil 11 is arranged in parallel to optical axis（Perpendicular to X-direction and Y-direction
The plane at place）The direction at place.Gyroscope is provided with the base of camera module, gyroscope is trembled for detector lens module
Dynamic displacement state, the displacement state according to shake calculates the calibrator quantity of camera lens module, i.e. first group of magnetic part 12 displacement
Calibrator quantity, so that it is determined that needing the first electric current being passed through in first coil 11, first electric current is supplied to the First Line
Circle 11 so that the first coil 11 matches the electromagnetic force for producing radially with first group of magnetic part 12, described along footpath
To electromagnetic force drive first group of magnetic part 12 to move, first group of magnetic part 12 drives the camera lens module one
Rise and move radially, realize the optical anti-vibration function of camera module.
In the present embodiment, the quantity of the first coil 11 is N, N number of first coil 11 it is discrete be arranged at it is described
The four walls inner side of module iron-clad, N is the natural number more than or equal to 2.For example, the quantity of the first coil 11 is described in 2,2
First coil 11 is separately positioned on the inner side of the adjacent two side of module iron-clad, meanwhile, camera module includes 2 first group of magnetic
Property part 12, first group of magnetic part be separately positioned on camera lens module outside and the position relative with first coil, therein one
First coil and first group of magnetic part are used to control camera lens module to move in X direction, optical anti-vibration in X direction is realized,
It is another that first coil and first group of magnetic part are used to control camera lens module to be moved along Y-direction, realize preventing along the optics of Y-direction
Tremble.For example, providing the first electric current to first coil, the first electric current matches the electromagnetism for producing in X direction with first group of magnetic part
Power, electromagnetic force in X direction drives first group of magnetic part to move in X direction, drives camera lens module to move in X direction, so that
The skew of camera lens module X-direction is calibrated, the optical anti-vibration in X-direction is realized.
Certainly, three, four or more first coils and first group of magnetic part, example can also be set in the present invention
Such as, with reference to shown in Fig. 1, four first coils are set, two of which is set in X direction, another two is set along Y-direction, also,
Four first group of magnetic parts are correspondingly arranged respectively, and the first coil that two of which X-direction is set is used to control camera lens module along X
The calibration of direction shake, the first coil of two Y-direction settings is used for the calibration for controlling camera lens module to be shaken along Y-direction, respectively
Optical anti-vibration for realizing X-direction and Y-direction.
Further, optical anti-vibration can also be realized by detecting the inductance of the first coil 11 in the present invention
Closed-loop control.Due to being in one by one between the inductance value and first coil 11 of first coil 11 and first group of position of magnetic part 12
Corresponding relation, detects by the inductance value in first coil 11, according to the size of the inductance value, determines first group of magnetic
The position of part 12, so that it is determined that the position of camera lens module, realizes the closed-loop control of optical anti-vibration.
Additionally, the camera module includes second group of magnetic part 22 and is matched with second group of magnetic part 22
Second coil 21, second coil 21 is configured on camera lens module, and second group of magnetic part 22 is fixedly arranged on module iron-clad
It is internal.According to the distance between detector lens module and imaging object, calculate camera lens module needs movement to shooting all modules
Distance, determines the size of the second electric current needed in the second coil, and the second electric current is supplied into second coil, described second
Coil and second magnetic part match the electromagnetic force for producing vertically, and the electromagnetic force vertically drives described second
Coil movement, to drive the camera lens module to be axially moveable, realizes the automatic focusing function of camera module.
With reference to shown in Fig. 2, the camera module also includes elastomer 30, and elastomer 30 clamps the camera lens module,
Or camera lens module clamps the elastomer 30, the elastomer 30 is located at surrounding symmetrical around the camera lens module respectively.Institute
State 30 pairs, the elastomer camera lens module and axially support is provided, and movement of the camera lens module perpendicular to axial direction is provided.
Specifically, the interaction force perpendicular to optical axis direction is produced between the elastomer 30 and the camera lens module, so that elastic
Produced between body and camera lens module along the frictional force of optical axis direction, the frictional force is more than or equal to the gravity of camera lens module itself, from
And be used to support camera lens module.Additionally, the first coil 11 is connected by slide rail 40 with the elastomer 30, elastomer 30 with
Camera lens module is moved on slide rail 40, the sliding conduction on slide rail 40, so as to provide electric current to first coil 11.Also, it is described
The surface of slide rail 40 is coated with conductive layer, increases electric conductivity.
With reference to shown in Fig. 3, because module iron-clad is permeability magnetic material, first coil 11 is produced in order to reduce module iron-clad 60
Magnetic field influence, prevent the influence interference magnetic force that is subject to of first group of magnetic part to the magnetic field, influence the work(of optical anti-vibration
Can, correspond in the module iron-clad 50 and hole 61, the length and width of hole 61 are set at the outer fix of the first coil 11
8mm ~ 10mm can be respectively set to, for example, hole is set to the size of 8.5mm × 8.5mm, 9.0mm × 9.0mm.More enter one
Step, the material of the module iron-clad 60 can also use nonmagnetic substance, and the further module iron-clad that reduces is to first group of magnetic
Property part by magnetic force influenceed.With continued reference to shown in Fig. 2, in order to prevent the environment outside hole 61 from being produced to first coil 11
Influence, is provided with filter membrane 50 between first coil and iron-clad.
Additionally, by adjusting the distance between first group of magnetic part 12 and second group of magnetic part 22, shape
Shape or position relationship, for example, regulation first group of magnetic part and second group of position of the magnetic pole of magnetic part, so as to increase by first
Group magnetic part 12 optimizes the regulatory function of optical anti-vibration parallel to the component of the magnetic line of force in the place direction of first coil 11.
In sum, it is directly or indirectly described in the implementation method of the camera module optical anti-vibration that the present invention is provided
Coil power supply, the coil matches the electromagnetic force for producing radially with the magnetic part, and the electromagnetic force radially drives
The magnetic part movement, to drive the camera lens module to move radially, realizes optical anti-vibration.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this area
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and techniques content of the disclosure above to this hair
Bright technical scheme makes possible variation and modification, therefore, every content without departing from technical solution of the present invention, according to the present invention
Any simple modification, equivalent variation and modification for being made to above example of technical spirit, belong to technical solution of the present invention
Protection domain.
Claims (9)
1. a kind of implementation method of camera module optical anti-vibration, it is characterised in that the camera module include module iron-clad,
Image-forming module, camera lens module, coil and some magnetic parts, the coil are set parallel to optical axis direction, the magnetic part
It is fixedly arranged on the camera lens module outside：
It is directly or indirectly the coil power supply, the coil matches the electromagnetic force for producing radially, institute with the magnetic part
The electromagnetic force stated radially drives the magnetic part movement, and the magnetic part drives the camera lens module radially to move together
It is dynamic, realize optical anti-vibration.
2. the implementation method of camera module optical anti-vibration according to claim 1, it is characterised in that the shooting head mould
Group also includes：The elastomer of elastomer or the camera lens module clamping of the camera lens module is clamped, the elastomer distinguishes position
The symmetrical surrounding around the camera lens module；Interaction force is provided between the elastomer and the camera lens module, it is described
The frictional force that interaction force is provided axially is supported more than or equal to the gravity of camera lens module with providing camera lens module, and is provided described
Movement of the camera lens module perpendicular to axial direction.
3. the implementation method of camera module optical anti-vibration according to claim 1, it is characterised in that the shooting head mould
Group includes：At least two first groups of magnetic parts, it is matched with described at least two first groups at least two first of magnetic part
Coil, discrete four walls for being arranged at the module iron-clad inner side of at least two first coil, described at least two first
The discrete outside for being fixedly arranged on the camera lens module of group magnetic part；
The first electric current is provided in the first coil, the first coil matches generation with first group of magnetic part radially
Electromagnetic force, the electromagnetic force radially drives first group of magnetic part motion, to drive the camera lens module along footpath
To movement, optical anti-vibration is realized.
4. the implementation method of camera module optical anti-vibration according to claim 1, it is characterised in that described by detection
The inductance of coil, determines the position relationship between the magnetic part and the coil, realizes the closed-loop control of optical anti-vibration.
5. the implementation method of camera module optical anti-vibration according to claim 1, it is characterised in that the module iron-clad
Outside corresponding to the coil sets hole, it is to avoid the magnetic part is influenceed by the magnetic force of correspondence position.
6. the implementation method of camera module optical anti-vibration according to claim 1, it is characterised in that the module iron-clad
Material be nonmagnetic substance.
7. the implementation method of camera module optical anti-vibration according to claim 1, it is characterised in that the shooting head mould
Group also includes：Second coil of second group of magnetic part, the second group of magnetic part being matched with, second coil configuration
In on camera lens module, second group of magnetic part is fixedly arranged on inside module iron-clad；
The second electric current is provided in second coil, second coil matches generation vertically with second magnetic part
Electromagnetic force, the electromagnetic force vertically drives second coil movement, to drive the camera lens module to be axially moveable.
8. the implementation method of camera module optical anti-vibration according to claim 7, it is characterised in that the regulation magnetic
The distance between part and second group of magnetic part, shape or position relationship, increase the magnetic part parallel to described
The magnetic line of force component of coil, it is ensured that the performance of optical anti-vibration.
9. the implementation method of camera module optical anti-vibration according to claim 2, it is characterised in that the coil passes through
Slide rail is connected with the elastomer, and the slide rail surface is coated with conductive layer, to increase electric conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217668.7A CN106773451B (en) | 2016-12-26 | 2016-12-26 | Method for realizing optical anti-shake of camera module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217668.7A CN106773451B (en) | 2016-12-26 | 2016-12-26 | Method for realizing optical anti-shake of camera module |
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| Publication Number | Publication Date |
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| CN106773451A true CN106773451A (en) | 2017-05-31 |
| CN106773451B CN106773451B (en) | 2021-07-27 |
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| CN201611217668.7A Active CN106773451B (en) | 2016-12-26 | 2016-12-26 | Method for realizing optical anti-shake of camera module |
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| CN107659758A (en) * | 2017-09-26 | 2018-02-02 | 努比亚技术有限公司 | Periscopic filming apparatus and mobile terminal |
| CN110998430A (en) * | 2017-08-10 | 2020-04-10 | 索尼公司 | Camera shake correction device |
| WO2020258596A1 (en) * | 2019-06-25 | 2020-12-30 | 北京小米移动软件有限公司 | Camera assembly and mobile terminal |
| CN112492184A (en) * | 2020-12-14 | 2021-03-12 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| WO2022001870A1 (en) * | 2020-06-29 | 2022-01-06 | 维沃移动通信有限公司 | Electronic equipment, and heat dissipation control method and apparatus for camera module |
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|---|---|
| CN106773451B (en) | 2021-07-27 |
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