CN108761710A - The actuator and camera model of camera model - Google Patents
The actuator and camera model of camera model Download PDFInfo
- Publication number
- CN108761710A CN108761710A CN201810289063.1A CN201810289063A CN108761710A CN 108761710 A CN108761710 A CN 108761710A CN 201810289063 A CN201810289063 A CN 201810289063A CN 108761710 A CN108761710 A CN 108761710A
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- camera model
- frequency
- axis
- actuator
- oscillator signal
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Classifications
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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
- G03B5/02—Lateral adjustment of lens
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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
-
- 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
-
- 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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/225—Detecting coils
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Adjustment Of Camera Lenses (AREA)
Abstract
The present invention discloses a kind of actuator and camera model of camera model.The actuator of the camera model of an embodiment according to the present invention may include：Detected portion；And position detection part, it is arranged in opposite directions with the detected portion, and include at least two sensing coils for being respectively formed at least two oscillating circuits, wherein, the position detection part can what is generated detect the position of the detected portion at least two oscillator signals of mutually different frequency range according at least two oscillating circuit.
Description
Technical field
The present invention relates to a kind of actuator of camera model and camera models.
Background technology
In general, the mobile terminals such as mobile phone, PDA, portable PC not only transmit text or voice data, execute
The transfer function of image data is also in recent increasingly popularization.It should be in this trend, in order to execute the transmission of image data
Or Video chat etc., the basic setup camera model on mobile terminals recently.
In general, camera model by lens equipped with internal lens barrel is configured at and lens barrel is contained in internal shell, and
Including for the imaging sensor by the video conversion of subject for electric signal.Camera model, which may be used, utilizes fixed focus
And the camera model of single focus mode of object is shot, however, with recent technological development, using automatic comprising being able to carry out
Focus (AF：Autofocus) the camera model of the actuator adjusted.Meanwhile it being reduced to mitigate the resolution ratio caused by hand shaking
The phenomenon that, camera model uses a kind of execution hand shake correction function (OIS：Optical Image Stabilization) cause
Dynamic device.
[existing technical literature]
[patent document]
Korean Patent Laid the 2013-0077216th
Invention content
The project of the present invention provides a kind of phase for the position for not using Hall sensor and capable of critically detecting magnet
The actuator and camera model of machine module.
The actuator of the camera model of an embodiment according to the present invention may include：Detected portion；And position detection
Portion arranges in opposite directions with the detected portion, and includes at least two sensing coils for being respectively formed at least two oscillating circuits,
In, the position detection part is according to the generation at least two oscillating circuit and has mutually different frequency range extremely
Lack two oscillator signals to detect the position of the detected portion.
The camera model of an embodiment according to the present invention may include：Lens barrel；Focus adjustment section provides the lens barrel
Along the driving force of optical axis direction；And jitter correction portion, the driving force along the both direction vertical with the optical axis is provided,
In, the focus adjustment section and jitter correction portion generate the oscillator signal that frequency changes according to the movement of the lens barrel respectively,
And then the displacement of the lens barrel is detected, in the frequency range for the oscillator signal that the focus adjustment section generates and in the shake school
The frequency range for the oscillator signal that positive portion generates is different.
The actuator of the camera model of an embodiment according to the present invention can be from the variation precision of the inductance of sensing coil
Ground detects the position of lens barrel.In turn, due to not using individual Hall sensor, it is capable of the actuating of thrifty camera model
The manufacturing cost of device, and space efficiency can be improved.
Description of the drawings
Fig. 1 is the stereogram of the camera model of an embodiment according to the present invention.
Fig. 2 a are the schematic, exploded, isometric illustrations of the camera model of an embodiment according to the present invention.
Fig. 2 b are the expanded views for sensing coil and driving coil for being arranged in substrate of an embodiment according to the present invention.
Fig. 3 be an embodiment according to the present invention camera model in the block diagram of the major part of actuator that uses.
Fig. 4 is the block diagram for the position detection part for showing an embodiment according to the present invention.
Fig. 5 a, along Z-direction hair is moved Figure 5b shows that the detected portion with an embodiment according to the present invention
The frequency of the multiple oscillator signals for changing.
Fig. 6 a, Fig. 6 b show with an embodiment according to the present invention detected portion along moving for X-direction and
The frequency of changed multiple oscillator signals.
Fig. 7 shows that the detected portion with an embodiment according to the present invention is changed along moving for Y direction
The frequency of multiple oscillator signals.
Symbol description
110：Shell 120：Shell
210：Lens barrel 300：Carrier
310：Frame 320：Lens carrier
400：Focus adjustment section 500：Jitter correction portion
600：Substrate 700：Image sensor module
1000：Actuator 1100：Driving portion
1200：Driving coil 1300：Detected portion
1400：Position detection part 1410：Oscillating portion
1410a：First oscillating circuit 1410b：Second oscillating circuit
1430：Operational part 1450：Judging part
Specific implementation mode
Hereinafter, being illustrated to the preferred implementation form of the present invention with reference to attached drawing.
However, the implementation form of the present invention can be deformed into various other forms, the scope of the invention is not limited to following
The implementation form of explanation.Also, the implementation form of the present invention is averagely known to have into the technical field belonging to the present invention
The personnel of knowledge are described more fully the present invention and the implementation form of offer.The various embodiments of the present invention are although different,
But it should be not necessarily to understand mutually exclusively.As an example, specific shape disclosed herein, structure and characteristic can with it is one real
It applies and is embodied as other embodiment under thought and range of the example association without departing from the present invention.
Also, otherwise other structures are not precluded unless otherwise especially opposite record in so-called " comprising " inscape
At element, but it can also includes other inscapes to mean.
Fig. 1 is the stereogram of the camera model of an embodiment according to the present invention, and Fig. 2 a are an implementation according to the present invention
The schematic, exploded, isometric illustration of the camera model of example, Fig. 2 b are the sense wires for being arranged in substrate of an embodiment according to the present invention
The expanded view of circle and driving coil.
Referring to Fig.1, the camera model 100 of Fig. 2 a and Fig. 2 b, an embodiment according to the present invention include lens barrel 210, make mirror
The actuator of 210 movement of cylinder, the shell 110 and shell 120 for accommodating lens barrel 210 and actuator, additionally, including will pass through lens barrel
210 incident light are converted to the image sensor module 700 of electric signal.
Lens barrel 210 can be hollow cylindrical shape so that multiple lens for enabling subject to be imaged are received
In inside, and multiple lens are installed on lens barrel 210 along optical axis.Multiple lens are required according to the design arrangement of lens barrel 210
Quantity, each lens have the optical characteristics such as identical or different refractive index.
Actuator can be such that lens barrel 210 moves.As an example, actuator can be by making lens barrel 210 along optical axis (Z axis) side
To mobile and adjust focus, and can by make lens barrel 210 along it is mobile and correcting captured perpendicular to the direction of optical axis (Z axis) when
Shake.Actuator includes the focus adjustment section 400 for adjusting focus and the jitter correction portion 500 for correction of jitter.
Image sensor module 700 can will be converted to electric signal by the incident light of lens barrel 210.As an example, image
Sensor assembly 700 may include imaging sensor 710 and the printed circuit board being connect with imaging sensor 710 720, may be used also
To include infrared filter.Infrared filter blocks the light of infrared spectral range from by the incident light of lens barrel 210.Image
Sensor 710 will be converted to electric signal by the incident light of lens barrel 210.As an example, imaging sensor 710 may include charge
Coupling device (CCD：Charge Coupled Device) or complementary metal oxide semiconductor (CMOS：
Complementary Metal-Oxide Semiconductor).The electric signal converted by imaging sensor 710 passes through just
The display unit of formula electronic equipment is taken as image output.Imaging sensor 710 is fixed on printed circuit board 720, passes through lead
Bonding is electrically connected with printed circuit board 720.
Lens barrel 210 is contained in shell 120 with actuator.As an example, the top and lower part of shell 120 are open shape
Shape, and contain lens barrel 210 and actuator in the inner space of shell 120.There is imaging sensor in the lower disposed of shell 120
Module 700.
Shell 110 is combined in the form of surrounding the outer surface of shell 120 with shell 120, and can protect camera mould
The Inner Constitution component of block 100.Also, shell 110 can shield electromagnetic wave.As an example, shell 110 can shield electromagnetism
Wave makes the electromagnetic wave generated in camera model not interfere with other electronic units in portable electronic device.Also, due to
Portable electronic device is also equipped with various electronic units other than camera model, therefore shell 110 can shield electromagnetic wave,
The electromagnetic wave generated in these electronic units is set not influence camera model.Shell 110 can be made using metal material and is grounded
In the ground pad for being provided to printed circuit board 720, therefore electromagnetic wave can be shielded.
The actuator of an embodiment according to the present invention makes lens barrel 210 move, and focus is focused in subject.As one
Example, actuator include making the focus adjustment section 400 that lens barrel 210 is moved along optical axis (Z axis) direction.
Focus adjustment section 400 includes magnet 410 and driving coil 430, and the magnet 410 and driving coil 430 generate drive
Power and make lens barrel 210 and accommodate lens barrel 210 carrier 30 as one kind 0 along optical axis (Z axis) direction move.
Magnet 410 is installed on carrier 30 as one kind 0.As an example, magnet 410 can be installed on a surface of carrier 30 as one kind 0.Drive line
Circle 430 can be installed on shell 120, and then be arranged opposite to each other with magnet 410.As an example, driving coil 430 can be arranged in
One surface of substrate 600, substrate 600 are installed on shell 120.
Magnet 410 can be installed on carrier 30 as one kind 0 and be moved together along optical axis (Z axis) direction with carrier 30 as one kind 0, driving coil
430 can be fixed on shell 120.But according to embodiment, the position of magnet 410 and driving coil 430 can phase double replacement.
If applying drive signal to driving coil 430, carrier 30 as one kind 0 can be according between magnet 410 and driving coil 430
Electromagnetic interaction and along optical axis (Z axis) direction move.
Lens barrel 210 is contained in carrier 30 as one kind 0, to which by means of the movement of carrier 30 as one kind 0, lens barrel 210 is also along optical axis (Z axis) direction
It is mobile.Also, frame 310 and lens carrier 320 are also contained in carrier 30 as one kind 0, to by means of the movement of carrier 30 as one kind 0, frame
310, lens carrier 320 and lens barrel 210 are also moved along optical axis (Z axis) direction together.
In order to reduce the frictional force between carrier 30 as one kind 0 and shell 120 when carrier 30 as one kind 0 moves, in carrier 30 as one kind 0 and shell
Rolling member B1 is disposed between 120.Rolling member B1 can be spherical state.Rolling member B1 can be arranged in magnet 410
Both sides.
It is disposed with yoke (yoke) 450 in shell 120.As an example, yoke 450 is installed on substrate 600, and then is arranged in
Shell 120.Yoke 450 is set to another surface of substrate 600.Therefore, yoke 450 is arranged as, and centre is across driving coil 430
And it is opposite with magnet 410.Between yoke 450 and magnet 410 gravitation is generated along perpendicular to the direction of optical axis (Z axis).Therefore, with
By means of the gravitation between yoke 450 and magnet 410, rolling member B1 can maintain the contact condition with carrier 30 as one kind 0 and shell 120.
Also, yoke 450 makes the magnetic aggregation of magnet 410, so as to prevent leakage field.As an example, yoke 450 and magnet
410 form magnetic circuit (Magnetic circuit).
The closed-loop control side that the present invention is fed back during adjusting focus using a kind of position of sensing lens barrel 210
Formula.Therefore, in order to carry out closed-loop control, focus adjustment section 400 may include position detection part.Position detection part may include certainly
Dynamic focusing (AF) sensing coil 470a, 470b, AF sensings coil 470a, 470b can be arranged along optical axis (Z axis).AF senses coil
The inductance (inductance) of 470a, 470b become according to the movement of the magnet 410 faced with AF sensings coil 470a, 470b
Change.Position detection part can from the AF sensing coils 470a occurred along the movement in optical axis (Z axis) direction according to magnet 410,
The position of the inductance variation detection lens barrel 210 of 470b.According to embodiment, focus adjustment section 400 can also be included in magnet 410
Side is arranged as the first sensing yoke 460 faced with AF sensings coil 470a, 470b.First sensing yoke 460 can be installed
It is moved together along optical axis (Z axis) direction with carrier 30 as one kind 0 in carrier 30 as one kind 0.First sensing yoke 460 can utilize conductor or magnetism
At least one formation in body.In the case where being provided with the first sensing yoke 460, position detection part can be from according to the first sensing
The inductance variation detection lens barrel 210 for AF sensing coils 470a, 470b that yoke 460 occurs along the movement in optical axis (Z axis) direction
Position.That is, the inductance of AF sensing coils 470a, 470b can sense the displacement of yoke 460 according to magnet 410 or first and change
Become.In the case where magnet 410 or first senses yoke and moved along optical axis (Z axis) direction, with AF sensing coil 470a, 470b weights
The area that folded magnet 410 or first senses yoke changes, therefore the inductance of AF sensing coils 470a, 470b can obtain
Change.
The position detection part of focus adjustment section 400 is in order to from the inductance of at least one AF sensing coils 470a, 470b
Variation judges the displacement of lens barrel 210, can extraly be equipped at least one capacitor.At least one capacitor is sensed with AF
Coil 470a, 470b can form scheduled oscillating circuit.As an example, at least one capacitor corresponds to AF sensing coils
The number of 470a, 470b and be arranged, to a capacitor with one sensing coil be configured to as scheduled LC oscillation
In addition to this form of device can also be configured to the form such as well known Colpitts oscillator.
The frequency variation for the oscillator signal that the position detection part of focus adjustment section 400 can be generated from oscillating circuit is sentenced
The displacement of disconnected lens barrel 210.Specifically, due to when forming the inductance change of AF sensing coils 470a, 470b of oscillating circuit,
The frequency of the oscillator signal generated in oscillating circuit can change, therefore the variation of the frequency based on oscillator signal can be examined
Survey the displacement of lens barrel 210.
It is led due to the use of reasons such as the hand shaking of person to correct when shooting image or shooting video in jitter correction portion 500
The phenomenon that image of cause is fuzzy or video jitter and used.For example, when due to the use of reasons such as the hand shaking of person and in shooting shadow
When being shaken when picture, jitter correction portion 500 is compensated by assigning the relative displacement corresponding to shake to lens barrel 210 and is trembled
It is dynamic.As an example, jitter correction portion 500 makes lens barrel 210 be moved with correction of jitter along perpendicular to the direction of optical axis (Z axis).
Jitter correction portion 500 includes generating to make lens barrel 210 along the more of the driving force moved perpendicular to the direction of optical axis (Z axis)
A magnet 510a, 520a and multiple driving coils 510b, 520b.Frame 310 is inserted into carrier 30 as one kind 0 and edge with lens carrier 320
Optical axis (Z axis) direction is arranged, and can guide the movement of lens barrel 210.Frame 310 and lens carrier 320 are equipped with can make mirror
The space that cylinder 210 is inserted into.Lens barrel 210 is inserted and fixed to lens carrier 320.
It is generated by by the electromagnetic interaction between multiple magnet 510a, 520a and multiple driving coils 510b, 520b
Driving force, frame 310 and lens carrier 320 are moved relative to carrier 30 as one kind 0 along perpendicular to the direction of optical axis (Z axis).Multiple magnetic
With multiple driving coils 510b, 520b, the first magnet 510a is generated with the first driving coil 510b along vertical by body 510a, 520a
Driving force in first axle (Y-axis) direction of optical axis (Z axis), the second magnet 520a are generated with the second driving coil 520b along vertical
In the driving force of the second axis (X-axis) of first axle (Y-axis).Here, the second axis (X-axis) is indicated perpendicular to optical axis (Z axis) and first
The axis of axis (Y-axis).Multiple magnet 510a, 520a are arranged orthogonally with respect to one another in the plane perpendicular to optical axis (Z axis).
Multiple magnet 510a, 520a are installed on lens carrier 320, and face with multiple magnet 510a, 520a multiple
Driving coil 510b, 520b is arranged in substrate 600, and then is installed on shell 120.
Multiple magnet 510a, 520a can be moved along perpendicular to the direction of optical axis (Z axis) together with lens carrier 320, and
And multiple driving coils 510b, 520b can be fixed on shell 120.But according to embodiment, multiple magnet 510a, 520a with
It the position of multiple driving coils 510b, 520b can phase double replacement.
The closed-loop control that the present invention is fed back using a kind of position sensing lens barrel 210 during correction of jitter
Mode.Therefore, jitter correction portion 500 may include the position detection part for closed-loop control, and may include becoming shake
Second sensing yoke 530a of the detected object of correction unit 500.Position detection part may include the photorefractive crystals arranged along X-axis
(OIS：Optical Image Stabilization) sensing coil 530b, 530c.Second sensing yoke 530a is attached at lens
Holder 320, OIS sensings coil 530b, 530c are arranged in substrate 600, and then are installed on shell 120.Second sensing yoke 530a
It can be facing on the direction of optical axis (Z axis) with OIS sensing coils 530b, 530c.
The inductance of OIS sensing coils 530b, 530c are according to the second sensing magnetic faced with OIS sensings coil 530b, 530c
The movement of yoke 530a and change.Position detection part can be from the both direction according to the second edges sensing yoke 530a perpendicular to optical axis
The movement of (X-direction, Y direction) and the position of the inductance variation detection lens barrel 210 of OIS sensings coil 530b, 530c occurred
It sets.
It is Chong Die with OIS sensing coil 530b, 530c in the case where the second sensing yoke 530a is moved along X-direction
The area change of second sensing yoke 530a, to which the inductance of OIS sensing coils 530b, 530c can be changed.In the second sense
Yoke 530a is surveyed along in the case that Y direction moves, OIS is sensed between coil 530b, 530c and the second sensing yoke 530a
Distance changes, to which the inductance of OIS sensing coils 530b, 530c can be changed.
The position detection part in jitter correction portion 500 judges mirror to sense the variation of the inductance of coil 530b, 530c from OIS
The displacement of cylinder 210, can extraly be equipped at least one capacitor.At least one capacitor and OIS sensing coils 530b,
530c can form scheduled oscillating circuit.As an example, at least one capacitor corresponds to OIS sensing coils
The number of 530b, 530c and be arranged, to a capacitor with one sensing coil be configured to as scheduled LC oscillation
In addition to this form of device can also be configured to the form such as well known Colpitts oscillator.
The frequency variation for the oscillator signal that the position detection part in jitter correction portion 500 can be generated from oscillating circuit is sentenced
The displacement of disconnected lens barrel 210.Specifically, due to changing when the inductance for OIS sensing coils 530b, the 530c for forming oscillating circuit
When, the frequency of the oscillator signal generated in oscillating circuit can change, therefore the variation energy of the frequency based on oscillator signal
Enough detect the displacement of lens barrel 210.
In addition, the position detection part in jitter correction portion 500 can also include being set to OIS sensing coils 530b, 530c
Reference coil (reference coil) 530d of side.The position detection part in jitter correction portion 500 can generate and datum line
The corresponding oscillator signal of inductance of 530d is enclosed, and is calculated from the frequency of the oscillator signal of generation and flows into making an uproar jointly for camera model
Sound ingredient.The position detection part in jitter correction portion 500 can be from the oscillator signal calculated by OIS sensing coils 530b, 530c
In frequency remove common noise ingredient, to improve lens barrel 210 displacement detecting reliability.
In addition, camera model 100 includes multiple ball parts in support jitter correction portion 500.Multiple ball parts execute in school
The function of the movement of guiding frame 310, lens carrier 320 and lens barrel 210 during positive shake.Also, it also executes and maintains to carry
The function at the interval between body 300, frame 310 and lens carrier 320.
Multiple ball parts include the first ball part B2 and the second ball part B3.First ball part B2 guiding frames 310, lens
The movement along first axle (Y-axis) direction of holder 320 and lens barrel 210, the second ball part B3 guiding lens carriers 320 and lens barrel
210 movement along the second axis (X-axis) direction.
As an example, the first ball part B2 is in the case where generating along the driving force in first axle (Y-axis) direction, along first axle
Do rolling movement in (Y-axis) direction.Accordingly, the first ball part B2 guiding frames 310, lens carrier 320 and lens barrel 210 along first
The movement in axis (Y-axis) direction.Also, the second ball part B3 is in the case where generating along the driving force in the second axis (X-axis) direction, edge
Do rolling movement in second axis (X-axis) direction.Accordingly, the second ball part B3 guiding lens carrier 320 and lens barrel 210 along the second axis
The movement in (X-axis) direction.
First ball part B2 includes the multiple ball parts being arranged between carrier 30 as one kind 0 and frame 310.Second ball part B3 packets
Include the multiple ball parts being arranged between frame 310 and lens carrier 320.
Carrier 30 as one kind 0 and frame 310 are being respectively formed with the first ball part of receiving along the face of optical axis (Z axis) direction toward each other
The first guiding groove portion 301 of B2.First guiding groove portion 301 includes drawing corresponding to the multiple of multiple ball parts of the first ball part B2
Guide groove.First ball part B2 is accommodated in the first guiding groove portion 301, and is located between carrier 30 as one kind 0 and frame 310.First
Ball part B2 is contained in the state of the first guiding groove portion 301, and the first ball part B2 is along optical axis (Z axis) and the second axis (X-axis) side
To mobile restricted system, can only be moved along first axle (Y-axis) direction.As an example, the first ball part B2 can be only along first
Do rolling movement in axis (Y-axis) direction.For this purpose, the first flat shape for guiding multiple guiding grooves of groove portion 301 each can be edge
First axle (Y-axis) direction has the rectangle of length.
Frame 310 and lens carrier 320 are being respectively formed with the second ball of receiving along the face of optical axis (Z axis) direction toward each other
Second guiding groove portion 311 of part B 3.Second guiding groove portion 311 include corresponding to the second ball part B3 multiple ball parts it is more
A guiding groove.
Second ball part B3 is accommodated in the second guiding groove portion 311, and is located between frame 310 and lens carrier 320.
Second ball part B3 is in the state of being accommodated in the second guiding groove portion 311, along optical axis (Z axis) and first axle (Y-axis) direction
Mobile restricted system can only be moved along the second axis (X-axis) direction.As an example, the second ball part B3 can be only along the second axis (X
Axis) direction does rolling movement.For this purpose, the second flat shape for guiding multiple guiding grooves of groove portion 311 each can be along second
Axis (X-axis) direction has the rectangle of length.
In addition, in the present invention, being provided between carrier 30 as one kind 0 and lens carrier 320 and being used to support lens carrier 320
Mobile third ball part B4.The movement along first axle (Y-axis) direction of third ball part B4 guiding lens carrier 320 and edge
The movement in the second axis (X-axis) direction.
As an example, third ball part B4 is in the case where generating along the driving force in first axle (Y-axis) direction, along first axle
Do rolling movement in (Y-axis) direction.Accordingly, third ball part B4 guides the shifting along first axle (Y-axis) direction of lens carrier 320
It is dynamic.
Also, third ball part B4 is in the case where generating along the driving force in the second axis (X-axis) direction, along the second axis (X
Axis) direction does rolling movement.Accordingly, third ball part B4 guides the movement along the second axis (X-axis) direction of lens carrier 320.
In addition, the second ball part B3 and third ball part B4 carries out contact support to lens carrier 320.
Carrier 30 as one kind 0 and lens carrier 320 are being respectively formed with receiving third ball along the face of optical axis (Z axis) direction toward each other
The third of part B 4 guides groove portion 302.Third ball part B4 be accommodated in third guiding groove portion 302, and be located in carrier 30 as one kind 0 with
Between lens carrier 320.Third ball part B4 is contained in the state of third guiding groove portion 302, the shifting along optical axis (Z axis) direction
It is dynamic to be restricted, and rolling movement can be done along first axle (Y-axis) and the second axis (X-axis) direction.For this purpose, third guides groove portion 302
Flat shape can be round.Therefore, third guiding groove portion 302 and first guides groove portion 301 and second to guide groove portion 311 can
With with mutually different flat shape.
First ball part B2 can do rolling movement along first axle (Y-axis) direction, and the second ball part B3 can be along the second axis
Rolling movement is done in (X-axis) direction, and third ball part B4 can do rolling movement along first axle (Y-axis) and the second axis (X-axis) direction.
Therefore, multiple ball parts in support jitter correction portion 500 of the invention have differences in degree of freedom.Here, degree of freedom can be with
Mean to indicate the quantity of required independent variable when the motion state of object in three-dimensional system of coordinate.In general, in three-dimensional coordinate
The degree of freedom of object is six in system.The movement of object can use the rotational coordinates of the orthogonal coordinate system and three directions in three directions
System indicates.As an example, object can be along each axis (X-axis, Y-axis, Z axis) parallel motion in three-dimensional system of coordinate, and can be with
Rotate rotation on the basis of each axis (X-axis, Y-axis, Z axis).
In the present specification, the meaning of degree of freedom may mean that, be applied to jitter correction portion 500 in power supply, and then tremble
Dynamic correction unit 500 when being moved along the driving force generated perpendicular to optical axis (Z axis) direction, indicate the first ball part B2,
The quantity of required independent variable when the movement of the second ball part B3 and third ball part B4.As an example, by along perpendicular to
The driving force that the direction of optical axis (Z axis) generates, third ball part B4 can be along two axis (first axle (Y-axis) and the second axis (X
Axis)) rolling movement is done, the first ball part B2 and the second ball part B3 can be along an axis (first axle (Y-axis) or the second axis (X
Axis)) do rolling movement.Therefore, the degree of freedom of third ball part B4 is more than the freedom of the first ball part B2 and the second ball part B3
Degree.
If generating driving force along first axle (Y-axis) direction, frame 310, lens carrier 320 and lens barrel 210 are together along the
One axis (Y-axis) direction moves.Here, the first ball part B2 and third ball part B4 does rolling movement along first axle (Y-axis) direction.
At this point, the limitation of movement system of the second ball part B3.
Also, if driving force is generated along the second axis (X-axis) direction, lens carrier 320 and lens barrel 210 are together along the second axis
(X-axis) direction moves.Here, the second ball part B3 and third ball part B4 does rolling movement along the second axis (X-axis) direction.This
When, the limitation of movement system of the first ball part B2.
In addition, multiple yokes 510c, 520c are provided in the present invention, to maintain jitter correction portion 500 and the first ball part
The state that B2, the second ball part B3, third ball part B4 are contacted.Multiple yokes 510c, 520c are fixed on carrier 30 as one kind 0, and arrange
To be faced along optical axis (Z axis) direction with multiple magnet 510a, 520a.Therefore, in multiple yoke 510c, 520c and multiple magnets
Between 510a, 520a gravitation is generated along optical axis (Z axis) direction.Due to by means of multiple yoke 510c, 520c and multiple magnets
Gravitation between 510a, 520a, jitter correction portion 500 are trembled by the pressure towards the direction of multiple yokes 510c, 520c
The frame 310 and lens carrier 320 of dynamic correction unit 500 can maintain and the first ball part B2, the second ball part B3, third bulb
The state of part B4 contacts.Multiple yokes 510c, 520c are that the material of gravitation can be generated between multiple magnet 510a, 520a.
As an example, multiple yokes 510c, 520c can be provided by magnetic substance.
The present invention is providing multiple yokes 510c, 520c, so that frame 310 and lens carrier 320 maintain and the first bulb
While the state that part B2, the second ball part B3, third ball part B4 are contacted, stop part (stopper) 330 is also provided, to prevent
Only the first ball part B2, the second ball part B3, third ball part B4, frame 310 and lens carrier 320 due to external impact etc. and
External to carrier 30 as one kind 0 is detached from.Stop part 330 is combined in a manner of at least part of in the upper surface for covering lens carrier 320
In carrier 30 as one kind 0.
Fig. 3 be an embodiment according to the present invention camera model in the block diagram of the major part of actuator that uses.Root
It can correspond to focus adjustment section 400 and the jitter correction portion 500 of Fig. 2 a according to the actuator 1000 of the embodiment of Fig. 3.
It, can be in order to execute camera mould in the case where the actuator 1000 of Fig. 3 corresponds to the focus adjustment section 400 of Fig. 2 a
Auto-focusing (the AF of block：Autofocus) function and so that lens barrel is moved along optical axis direction.Therefore, it is held in the actuator of Fig. 3 1000
In the case of row automatic focusing function, driving portion 1100 can apply drive signal to driving coil 1200, to be carried to lens barrel
For the driving force along optical axis direction.
It, can be in order to execute camera mould in the case where the actuator 1000 of Fig. 3 corresponds to the jitter correction portion 500 of Fig. 2 a
Optics hand shake correction (the OIS of block：Optical Image Stabilization) function and make lens barrel along perpendicular to the side of optical axis
To movement.Therefore, in the case where the actuator of Fig. 3 1000 executes optics image shake correction function, driving portion 1100 can be to drive
Moving winding 1200 applies drive signal, to be provided to detected portion 1300 along the driving force perpendicular to the direction of optical axis.
The actuator 1000 of an embodiment according to the present invention may include driving portion 1100, driving coil 1200, be detected
Survey portion 1300 and position detection part 1400.
Driving portion 1100 can be according to the input signal Si n applied from outside and the feedback generated from position detection part 1400
Signal Sf generates drive signal Sdr, and the drive signal Sdr of generation is provided to driving coil 1200.
In the case where applying the drive signal Sdr provided by driving portion 1100 to driving coil 1200, lens barrel can be borrowed
It is moved perpendicular to the direction of optical axis on the electromagnetic interaction edge helped between driving coil 1200 and magnet.
Position detection part 1400 is detected by detected portion 1300 by the electromagnetism phase between driving coil 1200 and magnet
The position of the lens barrel of interaction movement, and then feedback signal Sf is generated, and feedback signal Sf is provided to driving portion 1100.
Detected portion 1300 can be set to the side of lens barrel, to be moved along direction identical with the moving direction of lens barrel.
The detected portion 1300 for being set to the side of lens barrel can be opposite with the sensing coil of position detection part 1400.According to embodiment,
Detected portion 1300 can also be set to the multiple frames combined with lens barrel other than lens barrel.Detected portion 1300 can profit
With a kind of composition in magnetic substance and conductor.As an example, detected portion 1300 can correspond to the magnet 410, first of Fig. 2 a
It senses yoke 460 and second and senses yoke 530a.
Position detection part 1400 may include at least one sensing coil, and will be according to the movement of detected portion 1300
And the inductive switching of the sensing coil changed is frequency, to detect the position of detected portion 1300.At this point, being provided to position inspection
At least one sensing coil in survey portion 1400 can correspond to the focus adjustment section 400 of Fig. 2 a and jitter correction portion 500 is wrapped
At least one sensing coil contained.
Fig. 4 is the block diagram for the position detection part for showing an embodiment according to the present invention.Hereinafter, with reference to Fig. 2 a, Fig. 2 b, figure
3 and Fig. 4 is illustrated to detecting the operation of position of detected portion 1300 by position detection part 1400.
The position detection part 1400 of an embodiment according to the present invention may include oscillating portion 1410, operational part 1430 and sentence
Disconnected portion 1450.
Oscillating portion 1410 can be equipped with multiple oscillating circuits, to generate multiple oscillator signal Sosc.Multiple oscillation electricity
Road may include the first oscillating circuit 1410a and the second oscillating circuit 1410b, and the first oscillating circuit 1410a and second shakes
It swings circuit 1410b and respectively includes sensing coil and capacitor, and then constitute scheduled LC oscillators.Specifically, the first oscillation
Circuit 1410a may include the first sensing coil L1 and the first capacitor C1, the second oscillating circuit 1410b may include the second sense
Test coil L2 and the second capacitor C2.Here, being provided to the first of the first oscillating circuit 1410a and the second oscillating circuit 1410b
The AF sensing coils that the focus adjustment section 400 that the sensings of sensing coil L1 and second coil L2 can correspond to Fig. 2 a is included
470a, 470b, or OIS sensings coil 530b, 530c for being included of jitter correction portion 500 corresponding to Fig. 2 a.
First sensing coil L1 and the second sensing coil L2 can be detected and the first sensing coil L1 and the second sensing coil
The displacement of detected portion 1300 opposite L2.First sensing coil L1 and the second sensing coil L2 can detect detected portion 1300
The edge direction vertical with the face of the first sensing coil L1 of arrangement and the second sensing coil L2 displacement.Due to the first sensing coil
The sensings of L1 and second coil L2 is arranged on the same face, therefore the inductance of the first sensing coil L1 and the second sensing coil L2 can be with
According to moving for the edge of detected portion 1300 direction vertical with the face of the first sensing coil L1 of arrangement and the second sensing coil L2
And change in the same direction.If being illustrated with reference to Fig. 2 a, corresponded to for the first sensing coil L1 and the second sensing coil L2
For the case where at least one OIS that the jitter correction portion 500 of Fig. 2 a is included senses coil 530b, 530c, OIS sense wires
Circle 530b, 530c can detect opposite with OIS sensings coil 530b, 530c and the second sensing yoke 530a for arranging along Y-axis
The displacement in direction.
Also, the first sensing coil L1 and the second sensing coil L2 can detect the first sense of edge arrangement of detected portion 1300
The displacement in the direction of the sensing coils of test coil L1 and second L2.In detected portion 1300 along the first sensing of arrangement coil L1 and second
In the case of the direction movement for sensing coil L2, the inductance of the first sensing coil L1 and the second sensing coil L2 can be along mutually not phase
Same direction change.If being illustrated with reference to Fig. 2 a, correspond to figure for the first sensing coil L1 and the second sensing coil L2
For the case where at least one OIS sensing coil 530b, 530c that the jitter correction portion 500 of 2a is included, OIS senses coil
530b, 530c can detect opposite with OIS sensings coil 530b, 530c and the second sensing yoke 530a for arranging along X-axis side
To displacement.Also, it is wrapped corresponding to the focus adjustment section 400 of Fig. 2 a for the first sensing coil L1 and the second sensing coil L2
For the case where AF sensing coil 470a, 470b contained, AF sensings coil 470a, 470b can be detected senses coil with AF
The displacement along Z-direction for the first sensing yoke that 470a, 470b are opposite and arrange.
Fig. 4 schematically illustrates the first oscillating circuit 1410a and the second oscillating circuit 1410b, the first oscillating circuit
1410a and the second oscillating circuit 1410b is configured to the form of the oscillator of well known variform.
The frequency of the oscillator signal Sosc of first oscillating circuit 1410a and the second oscillating circuit 1410b can be by the first senses
The inductance of test coil L1, the second inductance, the capacitance of the first capacitor C1 and capacitance of the second capacitor C2 for sensing coil L2 are determined
It is fixed.In the case where oscillating circuit is embodied as the LC oscillating circuits being made of sensing coil and capacitor, oscillator signal Sosc's
Frequency f can be indicated by mathematical expression 1.In mathematical expression 1, l indicates the inductance of the first sensing coil L1 and the second sensing coil L2,
C indicates the capacitance of the first capacitor C1 and the second capacitor C2.
【Mathematical expression 1】
In the case where detected portion 1300 moves together with lens barrel, due to influencing the first sensing coil of oscillating portion 1410
The magnetic field intensity of the detected portion 1300 of the inductance of the sensings of L1 and second coil L2 changes, thus the first sensing coil L1 and
The inductance of second sensing coil L2 can be changed.Therefore, the first oscillating circuit 1410a and the second oscillating circuit 1410b outputs
The first oscillator signal Sosc1 and the frequency of the second oscillator signal Sosc2 can be changed according to the movement of detected portion 1300.
An embodiment according to the present invention, in order to improve the sensings of the first sensing coil L1 and second coil L2 inductance based on being detected
The change rate of the position movement in portion 1300, can arrange the magnetism of high magnetic permeability between detected portion 1300 and oscillating portion 1410
Substance.
An embodiment according to the present invention, first generated in the first oscillating circuit 1410a and the second oscillating circuit 1410b
The frequency range of oscillator signal Sosc1 and the second oscillator signal Sosc2 can be different.As an example, the first oscillator signal
The frequency range of Sosc1 can be equivalent to lower frequency region, and the frequency range of the second oscillator signal Sosc2 can be high-frequency domain.
According to an embodiment of the invention, two oscillating circuits of disposed adjacent generate the mutually different oscillation letter of frequency range
Number, so as to eliminate the interference between multiple oscillator signals.
In order to generate the mutually different oscillator signal of frequency range, the first sensing coil L1 of the first oscillating circuit 1410a
Inductance and the capacitance of the first capacitor C1 can be with the inductance and second of the second of the second oscillating circuit 1410b the sensing coil L2
The capacitance of capacitor C2 is different.As an example, the inductance of the first oscillating circuit 1410a and the second oscillating circuit 1410b it is identical and
The different either capacitance of capacitance is identical and inductance is different or capacitance and inductance can be all different.
In addition, according to embodiment, with above-mentioned difference, two oscillating circuits can generate the oscillator signal of same frequency band.
For this purpose, the inductance and capacitance of the first oscillating circuit 1410a and the second oscillating circuit 1410b can be identical.
Operational part 1430 can calculate first exported from the first oscillating circuit 1410a and the second oscillating circuit 1410b and shake
Swing the frequency f_Sosc2 of the frequency f_Sosc1 and the second oscillator signal Sosc2 of signal Sosc1.As an example, operational part 1430
Reference clock CLK can be utilized to calculate the frequency of the frequency f_Sosc1 and the second oscillator signal Sosc2 of the first oscillator signal Sosc1
Rate f_Sosc2.Specifically, operational part 1430 can utilize the oscillations of CLK couples of the first oscillator signal Sosc1 of reference clock and second
Signal Sosc2 is counted.Reference clock CLK is the clock signal of extremely high frequency, to during benchmark section, as an example,
The case where the first oscillator signal Sosc1 and the second oscillator signal Sosc2 of a cycle are counted using reference clock CLK
Under, the reference clock CLK of the first oscillator signal Sosc1 and the second oscillator signal Sosc2 corresponding to a cycle can be calculated
Count value.Operational part 1430 can be shaken using the count value of reference clock CLK and the frequency of reference clock CLK to calculate first
Swing the frequency f_Sosc2 of the frequency f_Sosc1 and the second oscillator signal Sosc2 of signal Sosc1.
The frequency f_Sosc1 and second that judging part 1450 can receive the first oscillator signal Sosc1 from operational part 1430 shakes
The frequency f_Sosc2 of signal Sosc2 is swung, and according to the frequency f_Sosc1 and the second oscillator signal of the first oscillator signal Sosc1
The frequency f_Sosc2 of Sosc2 judges the position of detected portion 1300.Judging part 1450 can be equipped with memory, and is depositing
Reservoir can be stored with the location information of detected portion corresponding with the frequency f_Sosc of oscillator signal Sosc 1300.Memory can
To be embodied as including flash memory (Flash Memory), electrically erasable programmable read-only memory (EEPROM：Electrically
Erasable Programmable Read-Only Memory) and ferroelectric random access memory (FeRAM：
Ferroelectric RAM) in a kind of non-volatility memorizer.
Judging part 1450 is in the oscillations of frequency f_Sosc1 and second for transmitting the first oscillator signal Sosc1 from operational part 1430
It, can be according to the location information for the detected portion 1300 for being stored in memory in the case of the frequency f_Sosc2 of signal Sosc2
Judge the position of detected portion 1300.
Fig. 5 a, Figure 5b shows that the detected portions with an embodiment according to the present invention along moving for Z-direction and
The frequency of changed multiple oscillator signals.
In this example, it is assumed that the first sensing coil L1 and the second sensing coil L2 correspond to the focus adjustment section of Fig. 2 a
400 AF sensing coils 470a, 470b for being included.In the case where detected portion 1300 is moved along Z-direction, the first sense wire
The inductance of the sensing coils of circle L1 and second L2 is increased or reduced along mutually different direction.Therefore, in detected portion 1300 along Z axis
In the case that direction is moved, by the first sensing coil L1 and the second sensing coil L2 the first oscillator signal Sosc1 generated and
The change direction of the frequency of second oscillator signal Sosc2 can be different.
It can be different with reference to the frequency range of Fig. 5 a, the first oscillator signal Sosc1 and the second oscillator signal Sosc2.
As an example, the highest frequency of the second oscillator signal Sosc2 of lower frequency region can be less than the first oscillator signal Sosc1 of high-frequency domain
Low-limit frequency.
Two oscillating circuits of an embodiment according to the present invention, disposed adjacent generate the mutually different oscillation of frequency range
Signal, so as to eliminate the interference between multiple oscillator signals.In addition, with reference to Fig. 5 b, first oscillator signal different from Fig. 5 a
The frequency range of Sosc1 and the second oscillator signal Sosc2 can be identical, and then the oscillation letters of the first oscillator signal Sosc1 and second
The frequency of number Sosc2 can on one point on intersect.
Fig. 6 a, Fig. 6 b are shown along X-direction moves hair with the detected portion of an embodiment according to the present invention
The frequency of the multiple oscillator signals for changing.
In this example, it is assumed that the first sensing coil L1 and the second sensing coil L2 correspond to the jitter correction portion of Fig. 2 a
500 OIS sensing coils 530b, 530c for being included.In the case where detected portion 1300 is moved along X-direction, the first sensing
The inductance of the sensing coils of coil L1 and second L2 is increased or reduced along mutually different direction.Therefore, in detected portion 1300 along X
In the case that axis direction moves, pass through the first sensing coil L1 and the first oscillator signal Sosc1 of the second sensing coil L2 generations
And second the change direction of frequency of oscillator signal Sosc2 can be different.
It can be different with reference to the frequency range of Fig. 6 a, the first oscillator signal Sosc1 and the second oscillator signal Sosc2.
As an example, the highest frequency of the second oscillator signal Sosc2 of lower frequency region can be less than the first oscillator signal Sosc1 of high-frequency domain
Low-limit frequency.
Two oscillating circuits of an embodiment according to the present invention, disposed adjacent generate the mutually different oscillation of frequency range
Signal, so as to eliminate the interference between multiple oscillator signals.In addition, with reference to Fig. 6 b, first oscillator signal different from Fig. 6 a
The frequency range of Sosc1 and the second oscillator signal Sosc2 can be identical, and then the oscillation letters of the first oscillator signal Sosc1 and second
The frequency of number Sosc2 can on one point on intersect.
Fig. 7 shows that the detected portion with an embodiment according to the present invention is changed along moving for Y direction
The frequency of multiple oscillator signals.
In this example, it is assumed that the first sensing coil L1 and the second sensing coil L2 correspond to the jitter correction portion of Fig. 2 a
500 OIS sensing coils 530b, 530c for being included.In the case where detected portion 1300 is moved along Y direction, the first sensing
The inductance of the sensing coils of coil L1 and second L2 increases or reduces in same direction.Therefore, in detected portion 1300 along Y-axis side
In the case of movement, pass through the first sensing coil L1 and the second sensing coil L2 the first oscillator signal Sosc1 generated and the
The change direction of the frequency of two oscillator signal Sosc2 can be mutually the same.
It can be different with reference to the frequency range of Fig. 7, the first oscillator signal Sosc1 and the second oscillator signal Sosc2.Separately
Outside, the highest frequency of the second oscillator signal Sosc2 of lower frequency region can be higher than the minimum of the first oscillator signal Sosc1 of high-frequency domain
High-frequency.That is, the frequency of the first oscillator signal Sosc1 and the second oscillator signal Sosc2 can weigh in a part of frequency range
It is folded.
But the frequency of the first oscillator signal Sosc1 and the second oscillator signal Sosc2 weight in a part of frequency range
It is folded, and the change direction of the frequency of the first oscillator signal Sosc1 and the second oscillator signal Sosc2 is identical, it is more so as to eliminate
Interference between a oscillator signal.
In addition, in the above-described embodiment, although disclose focus adjustment section actuator generation at least two
The frequency range of oscillator signal is different, or jitter correction portion actuator generate at least two oscillator signal frequency
The mutually different situation of rate range, but according to embodiment, at least two oscillation that the actuator of focus adjustment section generates
The frequency range at least two oscillator signal that the frequency range of signal can be generated with the actuator in jitter correction portion is not
Together.
That is, the mutually different oscillator signal of frequency range is generated in focus adjustment section and jitter correction portion, so as to disappear
Except the frequency respectively between the position detection operation for the lens barrel or detected portion that focus adjustment section and jitter correction portion execute is dry
It disturbs, thereby it is ensured that the reliability of position detection operation.
In the above-described embodiment, it is assumed that sensing coil is provided as two situations, and then the position to judging magnet
Operation is described, however at least two can be provided as by sensing coil, for the sensing coil for being provided as at least two, when
It so can also should be in manner just described.
More than, this hair is illustrated according to the embodiment and attached drawing of the specific items such as specific inscape and restriction
It is bright, however these are provided just to help the more comprehensively understanding to the present invention, the invention is not limited in above-mentioned
Embodiment, and have being realized from these records per capita for basic knowledge various in the technical field belonging to the present invention
Modification and deformation.
Therefore, thought of the invention should not be limited to the embodiment of the explanation and determine, other than claims,
All embodiments for being equal with the claims or equivalently deforming can be considered as in the thought range for belonging to the present invention.
Claims (15)
1. a kind of actuator of camera model, wherein including：
Detected portion；And
Position detection part is arranged with the detected portion, and includes be respectively formed at least two oscillating circuits at least two in opposite directions
A sensing coil,
Wherein, the position detection part according to the generation at least two oscillating circuit and has mutually different frequency model
At least two oscillator signals that enclose detect the position of the detected portion.
2. the actuator of camera model as described in claim 1, wherein
The position detection part detects the edge of the detected portion side vertical at least two sensing face of coil is arranged
To displacement.
3. the actuator of camera model as claimed in claim 2, wherein
The frequency of at least two oscillator signal increases and decreases in same direction according to the movement of the detected portion.
4. the actuator of camera model as described in claim 1, wherein
The position detection part detects the displacement of the arranged direction along at least two sensings coil of the detected portion.
5. the actuator of camera model as claimed in claim 2, wherein
The frequency of at least two oscillator signal increases and decreases according to the movement of the detected portion along different direction.
6. the actuator of camera model as described in claim 1, wherein
The oscillator signal of a generation lower frequency region at least two oscillating circuit, another generates the institute of high-frequency domain
State oscillator signal.
7. the actuator of camera model as claimed in claim 6, wherein
Low-limit frequency of the highest frequency of the oscillator signal of lower frequency region less than the oscillator signal of high-frequency domain.
8. the actuator of camera model as described in claim 1, wherein
At least two oscillating circuit further includes respectively：Capacitor is realized at least two sensings coil predetermined respectively
Oscillator.
9. the actuator of camera model as claimed in claim 8, wherein
The frequency range of at least two oscillator signal is according to the sensing coil being equipped at least two oscillating circuits
The capacitance of inductance and capacitor and determine.
10. the actuator of camera model as claimed in claim 9, wherein
The inductance of the sensing coil for an oscillating circuit being provided at least two oscillating circuit be provided to another shake
The inductance for swinging the sensing coil of circuit is different.
11. the actuator of camera model as claimed in claim 9, wherein
The capacitance of the capacitor for an oscillating circuit being provided at least two oscillating circuit and it is provided to another oscillation
The capacitance of the capacitor of circuit is different.
12. a kind of camera model, wherein including：
Lens barrel；
Focus adjustment section provides the driving force along optical axis direction of the lens barrel；And
Jitter correction portion provides the driving force along the both direction vertical with the optical axis,
Wherein, the focus adjustment section and jitter correction portion generate the oscillation that frequency changes according to the movement of the lens barrel respectively
Signal, and then the displacement of the lens barrel is detected,
Frequency range in the oscillator signal that the focus adjustment section generates and the oscillator signal in jitter correction portion generation
Frequency range it is different.
13. camera model as claimed in claim 12, wherein
The focus adjustment section generates at least two oscillator signals that frequency changes according to the movement of the lens barrel, and it is described extremely
The frequency range of few two oscillator signals is different.
14. camera model as claimed in claim 12, wherein
The jitter correction portion generates at least two oscillator signals that frequency changes according to the movement of the lens barrel, and it is described extremely
The frequency range of few two oscillator signals is different.
15. camera model as claimed in claim 12, wherein
The focus adjustment section and jitter correction portion respectively include generating the oscillating circuit of the oscillator signal.
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-2017-0043229 | 2017-04-03 | ||
| KR20170043229 | 2017-04-03 | ||
| KR10-2017-0177954 | 2017-12-22 | ||
| KR1020170177954A KR102115520B1 (en) | 2017-04-03 | 2017-12-22 | Actuator of camera module |
| KR10-2018-0036430 | 2018-03-29 | ||
| KR1020180036430A KR102104451B1 (en) | 2017-04-03 | 2018-03-29 | Camera module and actuator thereof |
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| CN108761710A true CN108761710A (en) | 2018-11-06 |
| CN108761710B CN108761710B (en) | 2021-07-06 |
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| CN201820467274.5U Active CN208172347U (en) | 2017-04-03 | 2018-04-03 | The actuator and camera model of camera model |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696737A (en) * | 2017-10-24 | 2019-04-30 | 三星电机株式会社 | The actuating method that actuator and processor for camera model are realized |
| CN111698399A (en) * | 2019-03-15 | 2020-09-22 | 三星电机株式会社 | Camera module, actuator, and portable electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102115520B1 (en) * | 2017-04-03 | 2020-05-26 | 삼성전기주식회사 | Actuator of camera module |
| KR102632362B1 (en) | 2019-02-21 | 2024-02-02 | 삼성전기주식회사 | Camera module |
| KR102460751B1 (en) * | 2020-11-02 | 2022-10-31 | 삼성전기주식회사 | camera module |
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Also Published As
| Publication number | Publication date |
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| KR20180112689A (en) | 2018-10-12 |
| CN108761710B (en) | 2021-07-06 |
| KR102115520B1 (en) | 2020-05-26 |
| CN208172347U (en) | 2018-11-30 |
| KR20180112658A (en) | 2018-10-12 |
| KR102104451B1 (en) | 2020-04-24 |
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