CN108476283A - Camera unit, camera module and mobile terminal - Google Patents
Camera unit, camera module and mobile terminal Download PDFInfo
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- CN108476283A CN108476283A CN201780007863.3A CN201780007863A CN108476283A CN 108476283 A CN108476283 A CN 108476283A CN 201780007863 A CN201780007863 A CN 201780007863A CN 108476283 A CN108476283 A CN 108476283A
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- 230000003287 optical effect Effects 0.000 claims abstract description 140
- 238000010586 diagram Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 13
- 238000012536 packaging technology Methods 0.000 description 12
- 230000005415 magnetization Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
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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
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Power Engineering (AREA)
- Adjustment Of Camera Lenses (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
- Lens Barrels (AREA)
Abstract
This application discloses a kind of camera units, the camera unit includes the first optical package, first magnetic part, second magnetic part, third magnetic part, clump weight and first coil, first magnetic part, second magnetic part, the third magnetic part and the clump weight are successively radially around first optical package, the first coil is distributed between first magnetic part and first optical package and between the third magnetic part and first optical package, first magnetic part and the third magnetic part are oppositely arranged and are that bipolarity magnetic magnet, second magnetic part is that unipolarity magnetic magnet, the clump weight is between first optical package and another described camera unit of the camera module, weight for balancing second magnetic part.Disclosed herein as well is a kind of camera module and mobile terminals.The magnetic interference for reducing two camera units, reduces spacing.
Description
This application involves picture pick-up device technical field more particularly to a kind of camera units, camera module and mobile terminal.
With popularizing for the Intelligent mobiles terminal such as mobile phone, tablet computer, the requirement for generating high-resolution, high image quality, photo high-definition also proposed to the camera unit being integrated on mobile terminal.Auto-focusing and optical anti-vibration technology improve the effect taken pictures or imaged well, and influence of the shake of hand to photographic quality, improves shooting effect when can efficiently reduce the chance for taking fuzzy photo under low luminous environment, and user being avoided to take pictures.Camera module includes two camera units, and two camera units capturing visual and can greatly improve photographic quality respectively after image procossing.
In the prior art, for realizing the voice coil motor of autozoom and optical anti-vibration by four unipolarities magnetic magnet (there are two magnetic poles for tool) driving optical package movement in camera unit, voice coil motor is larger to other magnetic devices of mobile terminal and the magnetisable material interference in the external world, for camera module, mutual magnetic interference between two camera units is larger, in order to avoid influencing the autozoom of camera unit and the effect of optical anti-vibration, need to increase the spacing of two camera units, the difficulty of camera module packaging technology had both been increased in this way, the space of complete machine environment is wasted again, resulting in size design under complete machine conditions Ambient can not be adapted to, it is unfavorable for the minimum design of camera module.
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In view of this, this application provides a kind of camera unit, camera module and mobile terminals, for solving in the prior art in order to avoid the autozoom of influence camera unit and the effect of optical anti-vibration, the spacing for needing to increase two camera units, be unfavorable for camera module minimum design the problem of.
First aspect, the embodiment of the present application provides a kind of camera unit, applied to camera module, the camera module includes at least two camera units, the camera unit includes the first optical package, first magnetic part, second magnetic part, third magnetic part, clump weight and first coil, first magnetic part, second magnetic part, the third magnetic part and the clump weight are successively radially around first optical package, the first coil is distributed between first magnetic part and first optical package and between the third magnetic part and first optical package, first magnetic part and the third magnetic part be oppositely arranged and be bipolarity magnetic magnet, second magnetic part is unipolarity magnetic magnet, the clump weight is located at first optical package and the camera mould Between another described camera unit of group, for balancing the weight of second magnetic part.Bipolarity magnetic magnet the first magnetic part and third magnetic part reduce the magnetic part for optical anti-vibration function to the magnetic interference of another camera unit and complete machine environment, reduce the spacing of two camera units, reduce the difficulty of camera module packaging technology, the space for having saved complete machine environment is conducive to the minimum design of camera module.
In a kind of embodiment, first magnetic part and second magnetic part include opposite the first magnetic portion and the second magnetic portion of magnetic orientation, first magnetic portion and second magnetic portion are arranged along the axial direction of first optical package, the magnetic orientation of first magnetic portion of first magnetic portion and second magnetic part of first magnetic part is on the contrary, second magnetic portion of first magnetic part and the magnetic orientation of second magnetic portion of second magnetic part are opposite.The first opposite magnetic portion of magnetic orientation and the second magnetic portion form convergent magnetic field, reduce leakage field, the first magnetic part and third
The magnetic field that magnetic part is formed is interacted with first coil, realizes automatic focusing function, and the first magnetic part and the convergent magnetic field of third magnetic part prevent the magnetic part for automatic focusing function to the magnetic interference of another camera unit and complete machine environment.
In a kind of embodiment, first magnetic part and second magnetic part further include non magnetic portion, are fixedly connected between first magnetic portion and second magnetic portion by the non magnetic portion.
In a kind of embodiment, first magnetic portion and second magnetic portion include the second end in face of the first end of first optical package and away from first optical package, and the first end and the second end are the magnetic pole of first magnetic portion or second magnetic portion.
Specifically, first optical package includes the first side wall and third side wall being oppositely arranged, the first side wall faces first magnetic part, and the third side wall surface is to the third magnetic part, and the first coil is around folding on the first side wall and the third side wall.First coil drives the first optical package to move under the action of Lorentz force, achievees the purpose that focusing, the fixed form is simple and easy.
In a kind of embodiment, the camera unit further includes the second coil, second coil is located at the same side of first magnetic part, second magnetic part and the third magnetic part, and the magnetic field that second coil is used to generate with first magnetic part, second magnetic part and the third magnetic part interacts.It generates Lorentz force in second coil when input current under the action of the first magnetic part, the second magnetic part and third magnetic part and compensates displacement caused by the shake of the second optical package to play the movement of optical anti-vibration, improve shooting effect.
In a kind of embodiment, the magnetic force of second magnetic part is twice of the magnetic force of first magnetic part, the magnetic force of first magnetic part and the magnetic picture of the third magnetic part are same, it can guarantee that the second coil can produce enough Lorentz forces after input current in this way, optical anti-vibration effect is improved, shooting effect is improved.
In a kind of embodiment, first magnetic part and central symmetry of the third magnetic part relative to first optical package, when to carry out automatic focus action, the input current of first coil is easy to control, and realizes that the Lorentz force of automatic focusing function is easy to control.
In a kind of embodiment, second magnetic part and central symmetry of the clump weight relative to first optical package, so that the weight of camera unit is uniform.
Second aspect, the embodiment of the present application also provides a kind of camera module, the camera module includes camera unit described in the second optical package and any of the above one, second optical package and first optical package two sides that be located at the clump weight opposite, the camera module further includes tertiary coil and the 4th magnetic part, the tertiary coil is wound in the periphery of second optical package, form closed circular structure, 4th magnetic part is distributed in the periphery of the tertiary coil, 4th magnetic part is used to generate the automatic focusing and optical anti-vibration that second optical package is realized in magnetic field.Bipolarity magnetic magnet the first magnetic part and third magnetic part reduce the magnetic part for optical anti-vibration function to the magnetic interference of another camera unit and complete machine environment, reduce the spacing of two camera units, reduce the difficulty of camera module packaging technology, the space for having saved complete machine environment is conducive to the minimum design of camera module.
In a kind of embodiment, the camera module further includes the 4th coil, and the 4th coil is located at the same side of each 4th magnetic part, and the 4th coil is used to interact with the magnetic field that each 4th magnetic part generates.Under the influence of a magnetic field, tertiary coil generates Lorentz force and compensates displacement caused by the shake of the second optical package to play the movement of optical anti-vibration, improves shooting effect.
In a kind of embodiment, the 4th magnetic part be unipolarity magnetic magnet.Unipolarity magnetic magnet manufacturing process it is simple, it is at low cost.
In a kind of embodiment, the magnetic pole of 4th magnetic part is distributed in the one end of the 4th magnetic part in face of second optical package and one end away from the optical package, and polarity of each 4th magnetic part in face of one end of second optical package is identical.To make the Lorentz force of the tertiary coil of input current along optical axis direction, make the Lorentz force of the 4th coil of input current along perpendicular to optical axis direction.
In a kind of embodiment, the minimum range of the clump weight and the 4th magnetic part is not more than 1 millimeter.The difficulty for reducing 30 packaging technology of camera module has saved the space of complete machine environment, is conducive to the minimum design of camera module 30.
In a kind of embodiment, the quantity of 4th magnetic part is four, 4th magnetic part is with the arrangement of angle distribution mode, so that the Distribution of Magnetic Field that the 4th magnetic part is formed is uniform, the Lorentz force that tertiary coil generates under magnetic fields with the 4th coil is easy to control, and improves the automatic effect focused with optical anti-vibration.
The third aspect, the embodiment of the present application also provide a kind of mobile terminal, including camera module described in any of the above one.Bipolarity magnetic magnet the first magnetic part and third magnetic part reduce the magnetic part for optical anti-vibration function to the magnetic interference of another camera unit and complete machine environment, reduce the spacing of two camera units, reduce the difficulty of camera module packaging technology, the space for having saved complete machine environment is conducive to the minimum design of camera module and mobile terminal.
The application's has the beneficial effect that: the first magnetic part and third magnetic part be bipolarity magnetic magnet, restrain the magnetic circuit of the first magnetic part and third magnetic part, reduce leakage field, prevent the magnetic part for automatic focusing function to the magnetic interference of another camera unit and complete machine environment, clump weight balances the weight of the second magnetic part with respect to the setting of the second magnetic part, clump weight is nonmagnetic, second magnetic part is far from another camera unit, the magnetic part for optical anti-vibration function is reduced to the magnetic interference of another camera unit and complete machine environment, reduce the spacing of two camera units, reduce the difficulty of camera module packaging technology, the space of complete machine environment is saved, be conducive to the minimum design of camera module.
Technical solution in ord to more clearly illustrate embodiments of the present application or in background technique below will be illustrated attached drawing needed in the embodiment of the present application or background technique.
Fig. 1 and Fig. 2 is the structural schematic diagram of camera unit provided by the embodiments of the present application.
Fig. 3 is the coil distribution schematic diagram of camera unit provided by the embodiments of the present application.
Fig. 4 is the magnetic part distribution schematic diagram of camera unit provided by the embodiments of the present application.
Fig. 5 is the schematic cross-section of the first magnetic part provided by the embodiments of the present application.
Fig. 6 is the schematic cross-section of the second magnetic part provided by the embodiments of the present application.
Fig. 7 is the schematic diagram of camera unit provided by the embodiments of the present application.
Fig. 8 and Fig. 9 is the structural schematic diagram for the camera module that the embodiment of the present application one provides.
Figure 10 is the coil distribution schematic diagram for the camera module that the embodiment of the present application one provides.
Figure 11 is the magnetic part distribution schematic diagram for the camera module that the embodiment of the present application one provides.
Figure 12 is the structural schematic diagram for the camera module that the embodiment of the present application two provides.
Figure 13 is the schematic diagram of mobile terminal provided by the embodiments of the present application.
The embodiment of the present application is described below with reference to the attached drawing in the embodiment of the present application.
Camera unit provided by the embodiments of the present application is applied to camera module, and camera module includes at least two for capturing the camera unit of image, wherein at least one camera unit is camera unit provided by the embodiments of the present application.
Fig. 1 and Fig. 2 are please referred to, camera unit 10 provided by the embodiments of the present application includes the first optical package 100, the first magnetic part 200, the second magnetic part 220, third magnetic part 240 and clump weight 260.First magnetic part 200, the second magnetic part 220, third magnetic part 240 and clump weight 260 are successively radially around the first optical package 100, specifically, first optical package 100 is the set of the devices such as optical mirror slip, pick-up lens and lens bracket, first optical package 100 is used to shoot image either statically or dynamically, and carry out the mainboard that image information is transferred to mobile terminal the operation such as to handle, image information can be photo or video.In a kind of embodiment, the first optical package 100 has the optical axis along shooting direction, and the first magnetic part 200, the second magnetic part 220, third magnetic part 240 and clump weight 260 are symmetrical centered on optical axis.In the present embodiment, as shown in Figure 1, taking the optical axis direction of the first optical package 100 is Z axis, the plane perpendicular to Z axis is X/Y plane.
First magnetic part 200 and third magnetic part 240 are oppositely arranged for bipolarity magnetic magnet, the two.Second magnetic part 220 is unipolarity magnetic magnet, clump weight 260 does not have magnetism, clump weight 260 is oppositely arranged with the second magnetic part 220, in camera module, for clump weight 260 between the first optical package 100 and another camera unit 10 of camera module, clump weight 260 is used to balance the weight of the second magnetic part 220.
It is the axonometric drawing for the camera unit 10 that Fig. 1 hides the first optical package 100 in conjunction with Fig. 2 and Fig. 3, Fig. 2, Fig. 3 is coil distribution schematic diagram of the camera unit 10 in X/Y plane.In the present embodiment, camera unit 10 further includes first coil 320, first coil 320 is between the first magnetic part 200 and the first optical package 100, and between third magnetic part 240 and the first optical package 100, first coil 320 is used to interact with the magnetic field that the first magnetic part 200 and third magnetic part 240 generate.In the present embodiment, the quantity of first coil 320 is two, and two first coils 320 are symmetrically distributed in the two sides of the first optical package 100.In a kind of embodiment, first coil 320 is axle center around folding using Y-axis, so that the direction for the Lorentz force that first coil 320 is generated in input current is Chong Die with Z axis.Specific to Fig. 7, Fig. 7 is working principle diagram of the camera unit 10 in YZ plane, the focusing of camera unit 10 is as follows: when input current in the first coil 320 being located in the magnetic field that the first magnetic part 200 and third magnetic part 240 generate, first coil 320 is under the influence of a magnetic field, first coil 320 is generated along the positive direction of Z axis (i.e. optical axis) or the Lorentz force of negative direction, the mobile terminal of first magnetic part 200 and third magnetic part 240 in the Z-axis direction with respect to installation camera unit 10 is fixed, to which the Lorentz force pushes first coil 320 to move along the positive direction or negative direction of Z axis.In the present embodiment, first coil 320 is fixed on the first optical package 100, i.e. first coil 320 and the first optical package 100 form an entirety, freedom degree having the same, to which the Lorentz force pushes the first optical package 100 to move along optical axis, the object that first optical package 100 is shot close to or far from needs, the positional relationship for the object that the focus and needs for adjusting the first optical package 100 are shot, to realize focus movement.In the present embodiment, under Distribution of Magnetic Field shown in Fig. 7, according to left hand rule, along the positive direction of Z axis, the size and Orientation of Lorentz force determines Lorentz force according to the size and flow direction of electric current in Distribution of Magnetic Field, first coil 320.
In conjunction with Fig. 2, Fig. 4 and Fig. 5, wherein Fig. 4 is magnetic part distribution schematic diagram of the camera unit 10 in X/Y plane, and Fig. 5 is schematic cross-section of first magnetic part 200 in YZ plane.Bipolarity magnetic the first magnetic part 200 and the tool of third magnetic part 240 there are four magnetic pole, that is two pairs of poles N and the pole S, the magnetic field that first magnetic part 200 and third magnetic part 240 are formed for realizing camera unit 10 automatic focusing function, the convergence of the magnetic circuit of first magnetic part 200 and third magnetic part 240 reduces leakage field, it is therefore prevented that the magnetic part for automatic focusing function is to the magnetic interference of another camera unit 10 and complete machine environment.Specifically, first magnetic part 200 and third magnetic part 240 include magnetic orientation opposite the first magnetic portion 22 and the second magnetic portion 24, first magnetic portion 22 and the second magnetic portion 24 are distributed along the direction (i.e. Z-direction) of the optical axis of the first optical package 100, the first magnetic part 200
The first magnetic portion 22 with the magnetic orientation of the first magnetic portion 22 of third magnetic part 240 on the contrary, the second magnetic portion 24 of the first magnetic part 200 and the magnetic orientation of the second magnetic portion 24 of the second magnetic part 220 are opposite.The opposite specific meaning of magnetic orientation is described as follows: in conjunction with Fig. 7, arrow direction is magnetic orientation in figure, and inside the first magnetic portion 22 or the second magnetic portion 24, magnetic field line is directed toward the pole N from the pole S.Outside the first magnetic portion 22 or the second magnetic portion 24, magnetic field line is directed toward the pole S from the pole N.22 internal magnetization of the first magnetic portion of first magnetic part 200 is oriented to Y-axis positive direction, external magnetic is oriented to Y-axis negative direction, 22 internal magnetization of the first magnetic portion of third magnetic part 240 is oriented to Y-axis negative direction, external magnetic is oriented to Y-axis positive direction, so that the first magnetic portion 22 of the first magnetic part 200 is opposite with the magnetic orientation of the first magnetic portion 22 of third magnetic part 240；24 internal magnetization of the second magnetic portion of first magnetic part 200 is oriented to Y-axis negative direction, external magnetic is oriented to Y-axis positive direction, 24 internal magnetization of the second magnetic portion of third magnetic part 240 is oriented to Y-axis positive direction, external magnetic is oriented to Y-axis negative direction, so that the second magnetic portion 24 of the first magnetic part 200 is opposite with the magnetic orientation of the second magnetic portion 24 of the second magnetic part 220.
In the present embodiment, the first magnetic portion 22 of the first magnetic part 200 and the magnetic orientation of the second magnetic portion 24 are on the contrary, the first magnetic portion 22 of third magnetic part 240 and the magnetic orientation of the second magnetic portion 24 are opposite.In conjunction with Fig. 5, by taking the first magnetic part 200 as an example, first magnetic portion, 22 internal magnetization is oriented to Y-axis positive direction, external magnetic is oriented to Y-axis negative direction, second magnetic portion, 24 internal magnetization is oriented to Y-axis negative direction, external magnetic is oriented to Y-axis positive direction, so that the first magnetic portion 22 of the first magnetic part 200 and the magnetic orientation of the second magnetic portion 24 are opposite.In conjunction with Fig. 4, arrow is the magnetic orientation inside the first magnetic part 200, the second magnetic part 220 and third magnetic part 240 in figure, in the first magnetic part 200, the internal magnetization of the first magnetic portion 22 and the second magnetic portion 24 that two opposite arrows respectively indicate the first magnetic part 200 is orientated, i.e. the first magnetic portion 22 of the first magnetic part 200 and the magnetic orientation of the second magnetic portion 24 are opposite；In third magnetic part 240, the internal magnetization of the first magnetic portion 22 and the second magnetic portion 24 that two opposite arrows respectively indicate third magnetic part 240 is orientated, i.e. the first magnetic portion 22 of third magnetic part 240 and the magnetic orientation of the second magnetic portion 24 is opposite.The first opposite magnetic portion 22 of magnetic orientation and the second magnetic portion 24 form convergent magnetic field, reduce leakage field, the magnetic field that first magnetic part 200 and third magnetic part 240 are formed is interacted with first coil 320, realize automatic focusing function, and the first magnetic part 200 and the convergent magnetic field of third magnetic part 240 prevent the magnetic part for automatic focusing function to the magnetic interference of another camera unit 10 and complete machine environment.
Specifically, in the first magnetic part 200, first magnetic portion 22 and the second magnetic portion 24 are distributed along Z-direction, first magnetic portion 22 is at a distance from the first optical package 100 and the second magnetic portion 24 is identical at a distance from the first optical package 100, so that the field homogeneity that the first magnetic part 200 or third magnetic part 240 generate.In a kind of embodiment, the first magnetic portion 22 and the second magnetic portion 24 are that NdFeB material is formed by bipolarity magnetic technique.
In a kind of embodiment, the first magnetic part 200 and the second magnetic part 220 further include non magnetic portion 26, are fixedly connected between the first magnetic portion 22 and the second magnetic portion 24 by non magnetic portion 26.Specifically, non magnetic portion 26, which is fixedly connected between the first magnetic portion 22 and the second magnetic portion 24, forms the first magnetic part 200 or third magnetic part 240, play the role of that the first magnetic portion 22 and the second magnetic portion 24 is isolated in non magnetic portion 26, make the first magnetic portion 22 and the second magnetic portion 24 at intervals, prevents the mutual magnetic interference between the first magnetic portion 22 and the magnetic field of each self-forming of the second magnetic portion 24.
In the present embodiment, first magnetic portion 22 and the second magnetic portion 24 include the magnetic pole that the first end 20a in face of the first optical package 100 and second end 20b, first end 20a and second end 20b away from the first optical package 100 is the first magnetic portion 22 or the second magnetic portion 24.Specifically, magnetic pole includes the pole N and the pole S, the magnetic pole of first magnetic portion 22 and the second magnetic portion 24 is distributed in the both ends of the width direction of the first magnetic part 200 and third magnetic part 240, first end 20a and second end 20b i.e. along the y axis, to form the magnetic field interacted with first coil 320, to make the Lorentz force of the first coil 320 of input current along Z-direction.
In conjunction with Fig. 2 and Fig. 6, wherein Fig. 6 is schematic cross-section of second magnetic part 220 in XZ plane.Unipolarity magnetic the second magnetic part 220 tool there are two magnetic pole, i.e. a pair of pole N and the pole S, the magnetic field of the second magnetic part 220 and the first magnetic part 200 and the formation of third magnetic part 240 for realizing camera unit 10 optical anti-vibration function.Specifically, the second magnetic part 220 includes the first side 22a for facing the first optical package 100 and the second side 22b, the first side 22a and the second side 22b away from the first optical package 100 are the magnetic pole of the second magnetic part 220.Specifically, magnetic pole includes the pole N and the pole S, and the first side 22a and the second side 22b are distributed in the both ends of the width direction of the second magnetic part 220, i.e., along the x axis, to form the magnetic field interacted with the second coil 340, to make the Lorentz force of the second coil 340 of input current along the x axis.
Second magnetic part 220 is set to the one end of the camera unit 10 far from another camera unit 10, the second magnetic part 220 is reduced to the magnetic interference of another camera unit 10, to reduce the magnetic part for optical anti-vibration function to the magnetic interference of another camera unit 10 and complete machine environment.Therefore, camera unit 10 provided by the embodiments of the present application reduces the spacing of two camera units 10 in camera module 30, reduces the difficulty of 30 packaging technology of camera module, has saved the space of complete machine environment, is conducive to the minimum design of camera module 30.
In a kind of embodiment, first magnetic part 200, the second magnetic part 220, third magnetic part 240 and clump weight 260 are strip, and the length direction of the first magnetic part 200 and third magnetic part 240 is along the x axis, and the length direction of the second magnetic part 220 and clump weight 260 is along the y axis.
In a kind of embodiment, first optical package 100 includes the first side wall 102 and third side wall 106 being oppositely arranged, the first side wall 102 faces the first magnetic part 200, third side wall 106 faces third magnetic part 240, first coil 320 is around folding on the first side wall 102 and third side wall 106, to make first coil 320 that the first optical package 100 be driven to move under the action of Lorentz force, achieve the purpose that focusing, the fixed form is simple and easy.
In conjunction with Fig. 2 and Fig. 3, in the present embodiment, camera unit 10 further includes the second coil 340, second coil 340 is located at the same side of the first magnetic part 200, the second magnetic part 220 and third magnetic part 240, and the magnetic field that the second coil 340 is used to generate with the first magnetic part 200, the second magnetic part 220 and third magnetic part 240 interacts.Specifically, the quantity of the second coil 340 is three, the side of the first magnetic part 200, the second magnetic part 220 and third magnetic part 240 is each provided with second coil 340.In a kind of embodiment, the first optical anti-vibration is axle center around folding using Z axis, so that the direction for the Lorentz force that the second coil 340 is generated in input current is Chong Die with X-axis or Y-axis.Specific to Fig. 7, by taking Y direction as an example, second coil 340 is located in the magnetic field that the first magnetic part 200 and third magnetic part 240 generate, when detecting that the first optical package 100 is shaken and being moved on X/Y plane direction, system input current into the second coil 340, under the influence of a magnetic field, first coil 320 is generated along the positive direction of Y-axis or the Lorentz force of negative direction, to be displaced caused by the shake of the first optical package 100 of compensation to play the movement of optical anti-vibration.In the present embodiment, under Distribution of Magnetic Field shown in Fig. 7, according to left hand rule, Lorentz force is along the positive direction of Y-axis, and in a kind of embodiment, the size and Orientation of Lorentz force is determined according to the size and flow direction of electric current in Distribution of Magnetic Field, the second coil 340.
In the present embodiment, the first optical package 100 further includes the second sidewall 104 and the 4th side wall 108 for connecting the first side wall 102 and third side wall 106, and second sidewall 104 is oppositely arranged with the 4th side wall 108.Second sidewall 104 faces the second magnetic part 220, second magnetic part 220 is unipolarity magnetic magnet, that is the second magnetic part 220 includes two magnetic poles, and magnetic pole is distributed in the one end of the second magnetic part 220 in face of second sidewall 104 and one end away from second sidewall 104, magnetic field to make the second magnetic part 220 be formed passes through the second coil 340, and the Lorentz force generated after 340 input current of the second coil is along the x axis.The resultant force for the Lorentz force that second coil 340 is formed under the effect of the first magnetic part 200, the second magnetic part 220 and third magnetic part 240 compensates the shake displacement of the first optical package 100, to realize the function of optical anti-vibration.4th side wall 108 faces counterweight
Block 260, clump weight 260 is used to balance the weight of the second magnetic part 220, and clump weight 260 is nonmagnetic, reduces the magnetic interference to another camera unit 10 and complete machine environment.
First magnetic part 200 and third magnetic part 240 are bipolarity magnetic magnet, restrain the magnetic circuit of the first magnetic part 200 and third magnetic part 240, reduce leakage field, prevent the magnetic part for automatic focusing function to the magnetic interference of another camera unit 10 and complete machine environment, clump weight 260 balances the weight of the second magnetic part 220 with respect to the setting of the second magnetic part 220, clump weight 260 is nonmagnetic, second magnetic part 220 is far from another camera unit 10, the magnetic part for optical anti-vibration function is reduced to the magnetic interference of another camera unit 10 and complete machine environment, reduce the spacing of two camera units 10, reduce the difficulty of camera module packaging technology, the space of complete machine environment is saved, be conducive to the minimum design of camera module.
In camera unit 10 provided by the embodiments of the present application, first magnetic part 200 and the magnetic picture of third magnetic part 240 etc., so that the Lorentz force that the first magnetic part 200, the second magnetic part 220 and the generation of third magnetic part 240 generate the second coil 340 is uniform, and it is conducive to adjust the resultant force of Lorentz force by adjusting input current, the effect for improving optical anti-vibration, improves the effect of shooting.In a kind of embodiment, the magnetic force of the second magnetic part 220 is twice of the first magnetic part 200, to guarantee that the second coil 340 can produce enough Lorentz forces along the x axis after input current.Since the second magnetic part 220 is located at the first side of the optical package 100 far from another camera unit 10, the magnetic interference to another camera unit 10 and complete machine environment will not be significantly improved increasing the magnetic force of the second magnetic part 220.
In camera unit 10 provided by the embodiments of the present application, the first magnetic part 200 and central symmetry of the third magnetic part 240 relative to the first optical package 100.In a kind of embodiment, distance of distance of first magnetic part 200 apart from corresponding first coil 320 with third magnetic part 240 apart from corresponding first coil 320 is identical, the magnetic picture of first magnetic part 200 and third magnetic part 240 is same, when to carry out automatic focus action, the input current of first coil 320 is easy to control, and realizes that the Lorentz force of automatic focusing function is easy to control.
In camera unit 10 provided by the embodiments of the present application, second magnetic part 220 and central symmetry of the clump weight 260 relative to the first optical package 100, in a kind of embodiment, the second magnetic part 220 is identical as 260 weight of clump weight, to keep the weight of camera unit 10 uniform.
The embodiment of the present application also provides a kind of camera module 30, and camera module includes at least two camera units 10.Please refer to Fig. 8 and Fig. 9, the camera module 30 that the embodiment of the present application one provides includes the second optical package 400 and camera unit provided by the embodiments of the present application 10, second optical package 400 and the first optical package 100 two sides that be located at clump weight 260 opposite, camera module 30 further includes multiple the 4th magnetic parts 600 radially around the distribution of the second optical package 400, and the 4th magnetic part 600 is used to generate the automatic focusing and optical anti-vibration that the second optical package 400 is realized in magnetic field.Specifically, the second optical package 400 is the set of the devices such as optical mirror slip, pick-up lens and lens bracket, the second optical package 400 carries out the mainboard that image information is transferred to mobile terminal the operation such as to handle for shooting image.In a kind of embodiment, second optical package 400 includes the optical axis along shooting direction, 4th magnetic part 600 is distributed centered on optical axis, 4th magnetic part 600 realizes the automatic focusing and optical anti-vibration function of the second optical package 400, since the magnetic circuit of the first magnetic part 200 and third magnetic part 240 is restrained, second magnetic part 220 and the 4th magnetic part 600 are apart from farther out, magnetic interference between two camera units 10 is smaller, reduce the spacing of two camera units 10 in camera module 30, reduce the difficulty of 30 packaging technology of camera module, the space of complete machine environment is saved, be conducive to the minimum design of camera module 30.
In conjunction with Fig. 9 and Figure 10, wherein Figure 10 is coil distribution schematic diagram of the camera module 30 in X/Y plane.In the present embodiment, camera module 30 further includes tertiary coil 520, and the radial surface for being wound in the second optical package 400 of tertiary coil 520, the magnetic field that tertiary coil 520 is used to generate with the 4th magnetic part 600 interacts.Specifically, the second focus coil is centered on Z axis around folding
In on the second optical package 400, so that the direction for the Lorentz force that tertiary coil 520 is generated in input current is Chong Die with Z axis.Tertiary coil 520 is located in the magnetic field of the 4th magnetic part 600 generation, when input current in tertiary coil 520, under the influence of a magnetic field, tertiary coil 520 is generated along the positive direction of Z axis or the Lorentz force of negative direction, so that the second optical package 400 be pushed to carry out corresponding automatic focus action.In a kind of embodiment, the size and Orientation of Lorentz force is determined according to the size and flow direction of electric current in Distribution of Magnetic Field, tertiary coil 520.
In the present embodiment, camera module 30 further includes the 4th coil 540, and the 4th coil 540 is located at the same side of each 4th magnetic part 600, and the magnetic field that the 4th coil 540 is used to generate with each 4th magnetic part 600 interacts.Specifically, the quantity of the 4th coil 540 is four, the side of each 4th magnetic part 600 is each provided with the 4th coil 540.In a kind of embodiment, the second optical anti-vibration is axle center around folding using Z axis, so that the direction for the Lorentz force that the 4th coil 540 is generated in input current is Chong Die with X-axis or Y-axis.By taking Y direction as an example, 4th coil 540 is located in the magnetic field of the 4th magnetic part 600 generation, when input current in the 4th coil 540, under the influence of a magnetic field, tertiary coil 520 is generated along the positive direction of Y-axis or the Lorentz force of negative direction, to be displaced caused by the shake of the second optical package 400 of compensation to play the movement of optical anti-vibration.In a kind of embodiment, the size and Orientation of Lorentz force is determined according to the size and flow direction of electric current in Distribution of Magnetic Field, the 4th coil 540.
In conjunction with Fig. 9 and Figure 11, wherein Figure 11 is magnetic part distribution schematic diagram of the camera module 30 in X/Y plane.In the present embodiment, the 4th magnetic part 600 is unipolarity magnetic magnet, specifically, the 4th magnetic part 600 includes two magnetic poles, i.e. a pair of pole N and the pole S, arrow is the magnetic orientation of the 4th magnetic part 600 in Figure 11.Unipolarity magnetic magnet low manufacture cost, second optical package 400 realizes that automatic focusing function, the second optical package 400 realize optical anti-vibration function by the 4th coil 540 in the magnetic field that the 4th magnetic part 600 is formed by tertiary coil 520 in the magnetic field that the 4th magnetic part 600 is formed.
In the present embodiment, the magnetic pole of the 4th magnetic part 600 is distributed in the one end of the 4th magnetic part 600 in face of the second optical package 400 and one end away from optical package, and polarity of each 4th magnetic part 600 in face of one end of the second optical package 400 is identical.Specifically, magnetic pole includes the pole N and the pole S, the 4th magnetic part 600 forms the magnetic field interacted with tertiary coil 520 makes the Lorentz force of the 4th coil 540 of input current along X-axis or Y direction to make the Lorentz force of the tertiary coil 520 of input current along Z-direction.
In a kind of embodiment, as shown in figure 11, the quantity of 4th magnetic part 600 is four, 4th magnetic part 600 is with the arrangement of angle distribution mode, specifically, the section of second optical package 400 is square, and four the 4th magnetic parts 600 are located at the corresponding position in four angles of the second optical package 400.The Distribution of Magnetic Field that angle magnet distribution mode forms the 4th magnetic part 600 is uniform, and the Lorentz force that tertiary coil 520 generates under magnetic fields with the 4th coil 540 is easy to control, and improves the automatic effect focused with optical anti-vibration.
In camera module 30 provided by the embodiments of the present application, the minimum range of clump weight 260 and the 4th magnetic part 600 is not more than 1 millimeter.Since the magnetic interference between two camera units 10 is smaller, the spacing of setting camera unit 10 is not more than 1 millimeter, reduces the difficulty of 30 packaging technology of camera module, has saved the space of complete machine environment, is conducive to the minimum design of camera module 30.
Figure 12 is please referred to, the camera module 30 that the embodiment of the present application two provides includes two camera units 10 provided by the embodiments of the present application, and two camera units 10 are symmetrical, and Figure 12 illustrates only the arrangement mode of magnetic part.The magnetic circuit convergence of the first magnetic part 200 and third magnetic part 240 of each camera unit 10 reduces leakage field, prevent the magnetic part for automatic focusing function to the magnetic interference of another camera unit 10 and complete machine environment, clump weight 260 balances the weight of the second magnetic part 220 with respect to the setting of the second magnetic part 220, clump weight 260 is nonmagnetic, second magnetic part 220 is far from another camera unit 10, the magnetic part for optical anti-vibration function is reduced to the magnetic interference of another camera unit 10 and complete machine environment, reduces two camera shootings
The spacing of unit 10 reduces the difficulty of 30 packaging technology of camera module, has saved the space of complete machine environment, is conducive to the minimum design of camera module 30.
Figure 13 is please referred to, the embodiment of the present application also provides a kind of mobile terminals 80, including camera module provided by the embodiments of the present application 30.Camera module 30 is set on mobile terminal 80 for capturing image, and image information is transferred to system board and is handled, or is shown by display panel.Mobile terminal 80 provided by the embodiments of the present application includes but is not limited to mobile phone, tablet computer, laptop etc..
The convergence of the magnetic circuit of first magnetic part 200 and third magnetic part 240, reduce leakage field, prevent the magnetic part for automatic focusing function to the magnetic interference of another camera unit 10 and complete machine environment, clump weight 260 balances the weight of the second magnetic part 220 with respect to the setting of the second magnetic part 220, clump weight 260 is nonmagnetic, second magnetic part 220 is far from another camera unit 10, the magnetic part for optical anti-vibration function is reduced to the magnetic interference of another camera unit 10 and complete machine environment, reduce the spacing of two camera units 10, reduce the difficulty of 30 packaging technology of camera module, the space of complete machine environment is saved, be conducive to the minimum design of camera module 30.Moreover, by the convergence of the magnetic circuit of the first magnetic part 200 and third magnetic part 240, reducing leakage field, additionally it is possible to magnetic disturbance of the dual camera mould group 30 to peripheral element is reduced, for example, the elements such as earpiece or loudspeaker are arranged in 30 periphery of dual camera mould group.Due to the convergent design of magnetic circuit, the distance between dual camera mould group 30 and peripheral element can be reduced, without influencing respective working effect, therefore, the application can also promote space utilization rate in mobile terminal, so that arrangement can be more compact between element.
It is described above; the only specific embodiment of the application; but the protection scope of the application is not limited thereto; anyone skilled in the art is within the technical scope of the present application; it can easily expect that various equivalent modifications or substitutions, these modifications or substitutions should all cover within the scope of protection of this application.Therefore, the protection scope of the application should be subject to the protection scope in claims.
Claims (16)
- A kind of camera unit, applied to camera module, the camera module includes at least two camera units, it is characterized in that, the camera unit includes the first optical package, first magnetic part, second magnetic part, third magnetic part, clump weight and first coil, first magnetic part, second magnetic part, the third magnetic part and the clump weight are successively radially around first optical package, the first coil is distributed between first magnetic part and first optical package and between the third magnetic part and first optical package, first magnetic part and the third magnetic part be oppositely arranged and be bipolarity magnetic magnet, second magnetic part is unipolarity magnetic magnet, the clump weight be located at first optical package and the camera module another described in Between camera unit, for balancing the weight of second magnetic part.
- Camera unit according to claim 1, it is characterized in that, first magnetic part and second magnetic part include opposite the first magnetic portion and the second magnetic portion of magnetic orientation, first magnetic portion and second magnetic portion are arranged along the axial direction of first optical package, the magnetic orientation of first magnetic portion of first magnetic portion and second magnetic part of first magnetic part is on the contrary, second magnetic portion of first magnetic part and the magnetic orientation of second magnetic portion of second magnetic part are opposite.
- Camera unit according to claim 2, which is characterized in that first magnetic part and second magnetic part further include non magnetic portion, are fixedly connected between first magnetic portion and second magnetic portion by the non magnetic portion.
- Camera unit according to claim 3, it is characterized in that, first magnetic portion and second magnetic portion include the second end in face of the first end of first optical package and away from first optical package, and the first end and the second end are the magnetic pole of first magnetic portion or second magnetic portion.
- Camera unit according to claim 4, it is characterized in that, first optical package includes the first side wall and third side wall being oppositely arranged, the first side wall faces first magnetic part, the third side wall surface is to the third magnetic part, and the first coil is around folding on the first side wall and the third side wall.
- Camera unit according to claim 5, it is characterized in that, the camera unit further includes the second coil, second coil is located at the same side of first magnetic part, second magnetic part and the third magnetic part, and the magnetic field that second coil is used to generate with first magnetic part, second magnetic part and the third magnetic part interacts.
- According to claim 1 to camera unit described in 6 any one, which is characterized in that the magnetic force of second magnetic part is twice of the magnetic force of first magnetic part, and the magnetic force of first magnetic part and the magnetic picture of the third magnetic part are same.
- According to claim 1 to camera unit described in 6 any one, which is characterized in that first magnetic part and central symmetry of the third magnetic part relative to first optical package.
- According to claim 1 to camera unit described in 6 any one, which is characterized in that second magnetic part and central symmetry of the clump weight relative to first optical package.
- A kind of camera module, it is characterized in that, the camera module includes camera unit described in the second optical package and claim 1 to 9 any one, second optical package and first optical package two sides that be located at the clump weight opposite, the camera module further includes tertiary coil and the 4th magnetic part, the tertiary coil is wound in the periphery of second optical package, form closed circular structure, 4th magnetic part is distributed in the periphery of the tertiary coil, 4th magnetic part is used to generate the automatic focusing and optical anti-vibration that second optical package is realized in magnetic field.
- Camera module according to claim 10, it is characterized in that, the camera module further includes the 4th coil, and the 4th coil is located at the same side of each 4th magnetic part, and the 4th coil is used to interact with the magnetic field that each 4th magnetic part generates.
- Camera module according to claim 11, which is characterized in that the 4th magnetic part is unipolarity magnetic magnet.
- Camera module according to claim 12, it is characterized in that, the magnetic pole of 4th magnetic part is distributed in the one end of the 4th magnetic part in face of second optical package and one end away from the optical package, and polarity of each 4th magnetic part in face of one end of second optical package is identical.
- Camera module described in 0 to 13 any one according to claim 1, which is characterized in that the minimum range of the clump weight and the 4th magnetic part is not more than 1 millimeter.
- Camera module described in 0 to 13 any one according to claim 1, which is characterized in that the quantity of the 4th magnetic part is four, and the 4th magnetic part is with the arrangement of angle distribution mode.
- A kind of mobile terminal, which is characterized in that including camera module described in claim 10 to 15 any one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910979456.XA CN110673296B (en) | 2016-12-14 | 2017-06-30 | Camera unit, camera module and mobile terminal |
| CN201910979458.9A CN110784629B (en) | 2016-12-14 | 2017-06-30 | Camera unit, camera module and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2016111530551 | 2016-12-14 | ||
| CN201611153055 | 2016-12-14 | ||
| PCT/CN2017/091077 WO2018107725A1 (en) | 2016-12-14 | 2017-06-30 | Camera unit, camera module, and mobile terminal |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910979456.XA Division CN110673296B (en) | 2016-12-14 | 2017-06-30 | Camera unit, camera module and mobile terminal |
| CN201910979458.9A Division CN110784629B (en) | 2016-12-14 | 2017-06-30 | Camera unit, camera module and mobile terminal |
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| CN108476283B CN108476283B (en) | 2019-11-05 |
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| CN201780007863.3A Active CN108476283B (en) | 2016-12-14 | 2017-06-30 | Camera unit, camera module and mobile terminal |
| CN201910979458.9A Active CN110784629B (en) | 2016-12-14 | 2017-06-30 | Camera unit, camera module and mobile terminal |
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| CN201910979458.9A Active CN110784629B (en) | 2016-12-14 | 2017-06-30 | Camera unit, camera module and mobile terminal |
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| WO (1) | WO2018107725A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110784629A (en) | 2020-02-11 |
| CN110673296A (en) | 2020-01-10 |
| CN108476283B (en) | 2019-11-05 |
| WO2018107725A1 (en) | 2018-06-21 |
| CN110784629B (en) | 2021-06-29 |
| CN110673296B (en) | 2022-05-17 |
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