CN110456473A - The installation method and camera apparatus of lens driver, shape memory alloy wire - Google Patents
The installation method and camera apparatus of lens driver, shape memory alloy wire Download PDFInfo
- Publication number
- CN110456473A CN110456473A CN201910735828.4A CN201910735828A CN110456473A CN 110456473 A CN110456473 A CN 110456473A CN 201910735828 A CN201910735828 A CN 201910735828A CN 110456473 A CN110456473 A CN 110456473A
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- Prior art keywords
- lens
- memory alloy
- alloy wire
- supports cylinder
- framework
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- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 58
- 238000009434 installation Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims abstract description 21
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 241000218202 Coptis Species 0.000 claims description 2
- 235000002991 Coptis groenlandica Nutrition 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 239000000758 substrate Substances 0.000 description 8
- 230000006870 function Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920002379 silicone rubber Polymers 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Adjustment Of Camera Lenses (AREA)
Abstract
Present disclose provides a kind of lens drivers, comprising: lens supports cylinder keeps at least one lens；The outside of lens supports cylinder is arranged in framework；First fixed part, the quantity of the first fixed part are four, and each first fixed part is individually secured on a lateral surface in four lateral surfaces of framework；And shape memory alloy wire, the quantity of shape memory alloy wire is four, every strip memory alloy wire bypasses first fixed part, and the electric current input/output terminal of shape memory alloy wire is fixed on the second fixed part of the sidewall portion of the pedestal of lens driver, after shape memory alloy wire is powered, so that framework moves in the vertical horizontal direction of the optical axis direction of lens driver, framework drive lens support tube moves in a horizontal direction, to realize the optical anti-vibration of lens.The disclosure additionally provides the installation method and a kind of camera apparatus of the shape memory alloy wire in a kind of lens driver.
Description
Technical field
This disclosure relates to the installation method and camera apparatus of a kind of lens driver, shape memory alloy wire.
Background technique
Currently, it is equipped with camera-enabled in the electronic equipment or individual mobile terminal of mobile phone etc.,
In order to make camera realize the functions such as autozoom, optical zoom or optical image stabilization, the lens that can drive lens are used
Driving device is required.
Lens driver drives lens using the driving force that actuator generates, thus change the distance of lens, thus
Realize the functions such as zoom or focusing.
But in the manufacturing process of lens driver, needs multiple components and manufacturing cost is very high, manufacturing process is multiple
It is miscellaneous, therefore manufacture more difficult.
In addition, can be generated between marmem in the mode for realizing camera lens stabilization using marmem
Interference signal, so that the control of lens driver is influenced, and in the installation process of marmem, the prior art
There are some problems.
Summary of the invention
At least one of in order to solve the above-mentioned technical problem, present disclose provides a kind of lens driver, shapes to remember
Recall the installation method and camera apparatus of alloy wire.
According to one aspect of the disclosure, a kind of lens driver, comprising:
Lens supports cylinder, the lens supports cylinder is for keeping at least one lens；
The outside of the lens supports cylinder is arranged in framework；
First fixed part, the quantity of first fixed part are four, and each first fixed part is individually secured to the frame
On a lateral surface in four lateral surfaces of body；And
Shape memory alloy wire, the quantity of the shape memory alloy wire are four, and every strip memory alloy wire bypasses
One the first fixed part, and the electric current input/output terminal of shape memory alloy wire is fixed to the pedestal of the lens driver
Sidewall portion the second fixed part on,
When the shape memory alloy wire is powered after, so that the framework is vertical in the optical axis direction of lens driver
It is moved in horizontal direction, the framework drives the lens supports cylinder to move in the horizontal direction, to realize lens
Optical anti-vibration.
According at least one embodiment of the disclosure, around two of the shape memory alloy wire of first fixed part
Extension line is parallel to each other.
According at least one embodiment of the disclosure, in four the first fixed parts, it is fixed to adjacent the two of the framework
Two fixed parts on a lateral surface are disposed adjacent, and other two fixed parts are disposed adjacent, described two fixed parts and it is described its
Its two fixed part is arranged relative to the catercorner mode of the framework.
According at least one embodiment of the disclosure, two two-phase of electric current input/output terminal of four strip memory alloy wires
Neighbour is arranged and catercorner mode is arranged.
According at least one embodiment of the disclosure, further includes:
Actuator, the actuator to the lens supports cylinder apply driving force so that the lens supports cylinder along
The optical axis direction is mobile；And
Guide support ball component, the guide support ball component include the first ball component and the second ball component,
The first ball component and the second ball component connect with the inner sidewall of the lateral wall of the lens supports cylinder and the framework
Touching, when the lens supports cylinder is moved relative to the framework, the first ball component and the second ball component into
Row rolls,
Wherein, from the top surface of lens supports cylinder, the actuator is located in a quadrant of plane right-angle coordinate,
The guide support ball component is located in another quadrant of plane right-angle coordinate, and another quadrant is one quadrant
Diagonal positions at quadrant.
According at least one embodiment of the disclosure, the actuator is piezoelectric actuator.
According at least one embodiment of the disclosure, the first ball component wraps respectively with the second ball component
Three balls are included, three balls are arranged along the optical axis direction, and upper spheres are identical as the diameter of lower spheres, and
More than or equal to the diameter of middle part ball.
It further include lens supports cylinder position detecting device, the lens branch according at least one embodiment of the disclosure
Supportting cylinder position detecting device includes Hall magnet and Hall sensor, and the Hall magnet is located on the lens supports cylinder, institute
The lower section that Hall sensor is located at the Hall magnet in optical axis direction is stated,
The quantity of the lens supports cylinder position detecting device is two, and linea angulata setting in pairs, for detecting institute respectively
State the movement of x-direction and y-direction of the lens supports cylinder in the horizontal direction.
According to another aspect of the present disclosure, the installation method of the shape memory alloy wire in lens driver, comprising:
Every strip memory alloy wire is bypassed into the first fixed part, around the two of the shape memory alloy wire of the first fixed part
Extension line bypasses stretch support post respectively with 90 ° of direction, distinguishes at the both ends of two extension lines around stretch support post
Counterweight is set, shape memory alloy wire is stretched by the gravity of counterweight, after stretching, two extension lines are fixed
On to the second fixed part and remove the counterweight.
According to the another aspect of the disclosure, a kind of camera apparatus, comprising:
Lens driver as described above；
At least one lens being fixed in the lens supports cylinder；And
Receive the imaging sensor of the light by least one lens.
Detailed description of the invention
Attached drawing shows the illustrative embodiments of the disclosure, and it is bright together for explaining the principles of this disclosure,
Which includes these attached drawings to provide further understanding of the disclosure, and attached drawing is included in the description and constitutes this
Part of specification.
Fig. 1 is the outside schematic diagram of lens driver in accordance with one embodiment of the present disclosure.
Fig. 2 is the schematic diagram of lens driver in accordance with one embodiment of the present disclosure.
Fig. 3 is the schematic diagram of lens driver in accordance with one embodiment of the present disclosure.
Fig. 4 is the schematic diagram that the actuator of lens driver in accordance with one embodiment of the present disclosure is powered.
Fig. 5 is the schematic diagram of lens driver in accordance with one embodiment of the present disclosure.
Fig. 6 is the schematic diagram of lens driver in accordance with one embodiment of the present disclosure.
Fig. 7 is the signal that the shape memory alloy wire of lens driver in accordance with one embodiment of the present disclosure is powered
Figure.
Fig. 8 is the signal of the shape memory alloy wire installation of lens driver in accordance with one embodiment of the present disclosure
Figure.
Specific embodiment
The disclosure is described in further detail with embodiment with reference to the accompanying drawing.It is understood that this place
The specific embodiment of description is only used for explaining related content, rather than the restriction to the disclosure.It also should be noted that being
Convenient for description, part relevant to the disclosure is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the disclosure can
To be combined with each other.The technical solution of the disclosure is described in detail below with reference to the accompanying drawings and in conjunction with embodiment.
Unless otherwise stated, illustrative embodiments/the embodiment shown, which will be understood as providing, to be practiced
The example feature of the various details of some modes of the middle technical concept for implementing the disclosure.Therefore, unless otherwise stated,
In the case where not departing from the technical concept of the disclosure, the feature of various embodiment/embodiments can additionally organize splitting or integrating
From, exchange and/or rearrange.
It is commonly used in being apparent from the boundary between adjacent component using intersecting hachure and/or shade in the accompanying drawings.Such as
This, unless explanation, otherwise specific material, the material to component are not conveyed or are indicated in the presence or absence of intersecting hachure or shade
Matter, size, ratio, any other characteristic of the general character between the component that shows and/or component, attribute, property etc. it is any partially
Good or requirement.In addition, in the accompanying drawings, for clear and/or descriptive purpose, the size of component can be exaggerated and with respect to ruler
It is very little.It, can be suitable to execute specific technique to be different from described sequence when differently exemplary embodiment can be implemented
Sequence.For example, can be performed simultaneously substantially or execute two techniques continuously described with the sequence opposite with described sequence.
In addition, same appended drawing reference indicates same component.
When a component be referred to as " " another component "upper" or " on ", " being connected to " or " being integrated to " another component
When, the component can directly on another component, be directly connected to or be bonded directly to another component, or can be with
There are intermediate members.However, when component is referred to as " directly existing " another component "upper", " being directly connected to " or " being bonded directly to "
When another component, intermediate member is not present.For this purpose, term " connection " can refer to physical connection, electrical connection etc., and have or
Without intermediate member.
For descriptive purpose, the disclosure can be used such as " ... under ", " in ... lower section ", " ... under ",
"lower", " in ... top ", "upper", " ... on " space of " higher " and " side (for example, such as in " side wall ") "
Relative terms, thus to describe the relationship of a component and another (other) components as shown in figures.In addition to being retouched in attached drawing
Except the orientation drawn, spatially relative term alsos attempt to the different direction comprising equipment in use, operation and/or manufacture.For example,
If the equipment in attached drawing is reversed, the component for being described as " " other components or feature " below " or " under " will be subsequent
It is positioned as " " described other components or feature " top ".Therefore, exemplary term " in ... lower section " may include " on
Side " and " lower section " two kinds of orientation.In addition, in addition equipment can be positioned (for example, being rotated by 90 ° or at other orientation), such as
This, is interpreted accordingly space used herein and describes language relatively.
Fig. 1 shows the outside schematic diagram of lens driver in accordance with one embodiment of the present disclosure.
As shown in Figure 1, the lens driver may include lens supports cylinder 100, framework 101, shell 200 and pedestal
300.Wherein, lens supports cylinder 100 and framework 101 are between shell 200 and pedestal 300.
Schematic diagram after being removed Fig. 2 shows the shell of lens driver in accordance with one embodiment of the present disclosure.
As shown in Fig. 2, lens driver may include lens supports cylinder 100, pedestal 300, actuator 400 and guiding
Support ball component 500.
Pedestal 300 may include bottom 301 and sidewall portion 302.Sidewall portion 302 surround along bottom 301 and can be the bottom of at
The peripheral position in portion 301, which rises to upward direction shown in Fig. 2, to be extended, and accommodates lens supports cylinder 100 and framework 101 to be formed
Space.
Shell 200 can be covered to the periphery wall of the upside and sidewall portion of lens supports cylinder 100 and framework 101 302.
Actuator 400 can be located at the inside of framework 101 and the outside of lens supports cylinder 100.
Guide support ball component 500 can be the form of ball, and on lens supports cylinder 100 and in framework 101
Ball grooves are offered, respectively to accommodate guide support ball component 500.
Lens driver can also include lens supports cylinder position detecting device 600.As shown in figure 3, lens supports cylinder
Position detecting device 600 may include Hall magnet 601 and Hall sensor 602, Hall magnet 601 and Hall sensor 602
It is oppositely arranged, Hall magnet 601 is located on lens supports cylinder 100, and Hall sensor 602 can be located under Hall magnet 601
The corresponding position of side.
The lens described next, with reference to Fig. 1-3 (framework removes in Fig. 3) in accordance with one embodiment of the present disclosure drive
Dynamic device, lens driver can be the device that driving is equipped on the camera lens of mobile phone etc..Lens driver can be with
Including lens supports cylinder 100, pedestal 300, actuator 400 and guide support ball component 500.
Lens supports cylinder 100 can be used for keeping at least one lens, and lens can be installed to lens supports cylinder 100
Portion realizes optical function by adjusting the position of lens.
Pedestal 300 can be in inner containment lens supports cylinder 100, framework 101, actuator 400 and guide support ball structure
The components such as part 500.
Pedestal 300 may include bottom 301 and the sidewall portion 302 that erects from bottom.Sidewall portion 302 can spread bottom
301 four sides and be arranged, and be integrally formed with bottom 301.Bottom 301 and sidewall portion 302 form receiving lens supports
The space of cylinder 100 and framework 101.Sidewall portion 302 and the optical axis direction of lens extend parallel to.
Lens supports cylinder 100 can have the barrel of tubular, and lens supports cylinder 100 and framework 101 are configured at bottom
301 and sidewall portion 302 formed space in, i.e., in the inside of barrel, the lens drum including lens is installed.Pass through driving
Power, lens supports cylinder 100 can be moved in the space of formation.
Actuator 400 applies driving force to the lens supports cylinder 100, so that the lens supports cylinder 100 is along light
Axis direction is mobile.Wherein actuator 400 may include the first part in framework 101 and be located on lens supports cylinder 100
Second part, by the interaction of first part and second part, Lai Shixian lens supports cylinder 100 is relative to framework 101
Relative movement (moving up and down).
According to one embodiment of the disclosure, actuator 400 can be piezoelectric actuator.Wherein, the actuator 400
It mainly include substrate 401, piezoelectric element 402 and silicon rubber 403.
Substrate 401 can be ceramic substrate, such as can be supported by SiC or zirconium oxide etc., and substrate 401 can be with lens
Support tube 100 is integrally formed.
Silicon rubber 403 can be set in framework 101.
As shown in figure 4, passing through the silicon rubber 403 of 402 behind of piezoelectric element, signature can be pushed away on lens supports cylinder 100
Ceramic substrate 401.Piezoelectric element 402 is divided into four regions and is conjugated when being powered in the direction of energization A according to d31
(transverse direction displacement), upper and lower two charge pumps 404 act shown in two dotted arrows, accordingly with ceramic substrate phase interaction
With lens supports cylinder 100 is moved up, when being powered in the direction of energization B, upper and lower two charge pumps 404 carry out two realities
It acts shown in existing arrow, interacts accordingly with ceramic substrate so that lens supports cylinder 100 moves down.
As shown in figure 3, guide support ball component 500 includes the first ball component 501 and the second ball component 502.
First ball component 501 may include upper spheres 5011, middle part ball 5012 and lower spheres 5013.Top rolling
Pearl 5011 can be identical with the diameter of lower spheres 5013, and is greater than the diameter of middle part ball 5012.
Second ball component 502 may include upper spheres 5021, middle part ball 5022 and lower spheres 5023.Top rolling
Pearl 5021 can be identical with the diameter of lower spheres 5023, and is greater than the diameter of middle part ball 5022.
As shown in Fig. 2, ball grooves can be offered in the outside of lens supports cylinder 100 and the inside of framework 101, to accommodate
Above-mentioned ball.The lateral wall of first ball component 501 and the second ball component 502 and lens supports cylinder 100 and framework 101 it is interior
Side wall is in contact, when lens supports cylinder 100 is moved relative to framework 101, the first ball component 501 and the second ball
Component 502 is rolled,
In this way, by the effect of actuator so that lens supports cylinder 100 under the positioning support of ball along optical axis direction into
Row movement.
As shown in figure 3, actuator 400 is located at the one of plane right-angle coordinate XY from the top surface of lens supports cylinder 100
In a quadrant, guide support ball component 500 is located in another quadrant of plane right-angle coordinate XY, another quadrant be one as
Quadrant at the diagonal positions of limit.
As shown in Fig. 2, guide support ball component 500 is located in the second quadrant, and actuator 400 is then located at four-quadrant
In limit.Wherein, guide support ball component 500 and actuator 400 are located at the corner of respective quadrant, i.e., in the saturating of respective quadrant
At the position adjacent with framework 101 of mirror support tube 100.Although being shown in figure guide support ball component 500 positioned at second
In quadrant and actuator 400 then be located at fourth quadrant in, but the technical solution of the disclosure to this without limit, as long as the two
It is located in cornerwise two quadrants.
According to the alternative embodiment of the disclosure, the center of actuator 400 and the first ball component 501 and the second ball
Center between component 502 is located on the straight line by the central point of lens supports cylinder 100.
The lateral wall of the upper spheres 5011 of first ball component 501 and lower spheres 5013 and lens supports cylinder 100 and
The inner sidewall close-fitting contact of framework 101 to avoid lens supports cylinder 100 rotation
The lateral wall of the upper spheres 5021 of second ball component 502 and lower spheres 5023 and lens supports cylinder 100 and
The inner sidewall of framework 101 carries out remaining installation cooperation contact in order to provide installation remaining.
The lateral wall of the upper spheres 5011 of first ball component 501 and lower spheres 5013 and lens supports cylinder 100 is extremely
There are two contact points for few tool, and with the inner sidewall of framework 101 at least have there are two contact point.
Such as shown in Fig. 3, the cross-sectional shape of the ball grooves of the first ball component 501 is rectangular, and is located at rectangular rolling
There are two contact points for upper spheres 5011 and lower spheres 5013 and the tool of framework 101 in pearl slot, with lens supports cylinder 100
There are two contact points for lateral wall tool.It will be understood by those of skill in the art that it may be set to be other shapes, such as lens
Semicircle etc. can be set into the ball grooves of the inner sidewall of the ball grooves or framework 101 of the lateral wall of support tube 100, setting
Shape need to prevent lens supports cylinder 100 from shaking in the direction vertical with optical axis direction.
The lateral wall of the upper spheres 5021 of second ball component 502 and lower spheres 5022 and lens supports cylinder 100 is extremely
There is one or two contact point less, and at least there is one or two contact point with the inner sidewall of framework 101.
Such as shown in Fig. 2, shape of the ball grooves of the second ball component 502 in the side of lens supports cylinder 100 is two
Face is in contact with upper spheres 5021 with lower spheres 5022, and is plane in the shape of the ball grooves of the inner sidewall of framework 101
Shape, only a face are in contact with upper spheres 5021 with lower spheres 5022, i.e. an only contact point.
By the setting of the first ball component 501 and the second ball component 502 and corresponding ball grooves, first can placed
After ball component 501 (the first ball component 501 is fitted close with its ball grooves), the second ball component 502 is then placed, and
And when the second ball component 502 is put into ball grooves, biggish installation remaining is provided, can be prevented due to machining accuracy in this way
The problem of caused second ball component 502 can not be put into.
In addition, the lesser middle part ball 5012,5022 of diameter in the first ball component 501 and the second ball component 502
It can be used for assisting the rotation of upper spheres and lower spheres.
It can also include lens supports according to the lens driver of the disclosure according to the further embodiment of the disclosure
Cylinder position detecting device 600.As shown in figure 3, lens supports cylinder position detecting device 600 may include Hall magnet 601 and suddenly
That sensor 602, Hall magnet 601 and Hall sensor 602 are oppositely arranged, and Hall magnet 601 is located at lens supports cylinder 100
On, Hall sensor 602 can be located at the lower section of Hall magnet 601.
Lens supports cylinder position detecting device 600 is located at quadrant locating for actuator 400 and 500 institute of guide support ball component
Locate in other quadrants except quadrant.It should be noted that, although be not shown in figure, but Hall magnetic shown in Fig. 3
A set of Hall magnet and Hall sensor are additionally provided at cornerwise position of iron 601 and Hall sensor 602.
In the disclosure, Hall magnet 601 may be integrally formed on lens supports cylinder 100.
In addition, as shown in figure 3, can realize Hall sensor and actuator by flexible circuit board 700 and external electrical
The signal communication on road, such as can be connected to by interface end 701 as shown in Figure 3 with external circuit.
In this way by above-mentioned brake and ball, lens driver may be implemented moves up and down (the side Z in Fig. 1
Moving up and down in).
In order to realize optical anti-vibration function, in accordance with one embodiment of the present disclosure, using marmem (SMA) line
To realize movement of the framework 101 in the horizontal direction in (direction XY as shown in Figure 1).
It should be noted that realizing the function of optical anti-vibration using marmem (SMA) line, can be adapted for
The structure that the actuator of face description is matched with ball, is readily applicable to other structures for moving up and down lens.
In addition, it is necessary to which explanation, framework 101 are not fixed on pedestal, the effect of memory alloy wire can be passed through
To carry out the movement in horizontal direction.In order to make it easy to understand, it will be appreciated by those skilled in the art that being in the horizontal direction
In moving process, framework 101 and lens supports cylinder 100 are overall structure, by the movement of framework 101 in the horizontal direction, are come
Movement in the horizontal direction of drive lens support tube 100, to realize optical anti-vibration function.
Wherein, referring to Fig. 5 and Fig. 6, optical anti-vibration device may include shape memory alloy wire 801, the first fixed part
802 and second fixed part 803.
First fixed part 802 is fixedly attached to one end of the lateral surface of framework 101, and according to the embodiment party of the disclosure
Formula may include four the first fixed parts, be individually secured on the one end in the outside of four sides of framework 101.In the disclosure
In, it is preferable that two the first fixed parts 802 are fixed to the adjacent of 101 two adjacent sides of framework, and other two is adjacent
Two the first fixed parts 802 on side are arranged with the pairs of linea angulata of other two the first fixed parts 802.
Shape memory alloy wire 801 may include four, and every strip memory alloy wire 801 is respectively around corresponding first
Extend after fixed part 802 along the side of framework 101.And the top and the bottom of the extension of every strip memory alloy wire 801 can be with
It is arranged in parallel.On the first fixed part 802, receiving and the groove circular for shape memory alloy wire 801 can be set.
The electric current input/output terminal 804 of shape memory alloy wire 801 extends to the other end of the lateral surface of framework 101.Four
Strip memory alloy wire all can be identical mode.Due to the set-up mode of the first fixed part, the memory of four strips
The setting two-by-two of the electric current input/output terminal of alloy wire is at cornerwise position.As shown in figure 5, electric current input/output terminal 804
It may include reinforcing portion (enlarged diameter portion).
The electric current input/output terminal 804 of shape memory alloy wire 801 can be fixed on the second fixed part 803, and second is solid
Determining portion 803 can be fixed in the sidewall portion 302 of pedestal 300.As shown in fig. 6, the second fixed part 803 may include being embedded in side
The embedded part of wall portion 302 and from embedded part protrusion outstanding.Protrusion can clamp marmem
The electric current input/output terminal 804 of line 801, and electric current input/output terminal 804 is connected at the position of the second fixed part 803
External circuit, so that electric current inflow and outflow shape memory alloy wire 801.By above-mentioned setting, every strip can be made
Two parts up and down of memory alloy wire 801 are substantially parallel with the lateral surface of framework 101.
When shape memory alloy wire 801 is powered (for wherein one), shape memory alloy wire 801 will form electromagnetism
.Schematically such as Fig. 7, left side is current input terminal, and right side is current output terminal, and the shape memory of electric current inflow side closes
Gold thread 801 is formed by magnetic field and the shape memory alloy wire 801 of electric current outflow side is formed by magnetic field on the contrary, shape is remembered in this way
The two parts for recalling alloy wire 801, which are formed by electromagnetic field, to cancel out each other, so as to eliminate generated electromagnetic noise, this
Sample can be controlled etc. more accurately.
It, will be so that framework 101 moves in the horizontal direction when shape memory alloy wire 801 is powered.It is arranged in the disclosure
There are two lens supports cylinder position detecting devices 600, such as a lens supports cylinder position detection is arranged in the upper right side of Fig. 1 and fills
600 are set, one lens supports cylinder position detecting device 600 is set in the lower left of Fig. 1.Lens supports cylinder position detecting device
On 600 specific descriptions are referred to.When framework 101 moves in the horizontal direction, drive lens support tube 100 is in level side
To movement, the lens supports cylinder position detecting device 600 being arranged by upper right side can be by detecting feedback signal, to control
Movement in X-direction, and the lens supports cylinder position detecting device 600 being arranged by lower left can be by detecting feedback letter
Number, to control the movement in the Y direction.
In accordance with one embodiment of the present disclosure, a kind of installation method of above-mentioned shape memory alloy wire is additionally provided, with
For one.
In the prior art, in order to install shape memory alloy wire with stretching mode, the mode pair of energization is generallyd use
Memory alloy wire is stretched, and is then installed.Such as the electric current by being passed through 42mA in advance, shape is made by the electric current
Memory alloy wire is stretched, and will cause the loss etc. of electric power in this way.
According to the installation method of the disclosure, first by shape memory alloy wire be set in the first fixed part 802 (180 ° around
Cross) on, then make two strip memory alloy wires respectively with 90 ° around overstretching column 901, is remembered by setting in two strips
The counterweight of the end of alloy wire stretches shape memory alloy wire.Wherein the weight of counterweight can according to actual design come
It is selected, the counterweight of 10g can be used for example.
After shape memory alloy wire stretches, shape memory alloy wire 801 is fixed to the near column 901 stretching
Two fixed parts 803.Counterweight 902 and/or extra shape memory alloy wire are removed later.
According to the disclosure another, embodiment there is provided a kind of camera apparatus comprising above-mentioned lens driver；
At least one lens being fixed in the lens supports cylinder；And it receives and is passed by the image of the light of at least one lens
Sensor.
According to a further embodiment of the disclosure, a kind of electronic equipment is additionally provided, may include above-mentioned camera apparatus.
In the description of this specification, reference term " one embodiment/mode ", " some embodiment/modes ", " show
The description of example ", " specific example " or " some examples " etc. mean to combine the specific features of the embodiment/mode or example description,
Structure, material or feature are contained at least one embodiment/mode or example of the application.In the present specification, to upper
The schematic representation for stating term is necessarily directed to identical embodiment/mode or example.Moreover, the specific features of description,
Structure, material or feature can be combined in any suitable manner in any one or more embodiment/modes or example.In addition,
Without conflicting with each other, those skilled in the art can by different embodiment/modes described in this specification or
Example and different embodiment/modes or exemplary feature are combined.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present application, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
It will be understood by those of skill in the art that above embodiment is used for the purpose of clearly demonstrating the disclosure, and simultaneously
Non- be defined to the scope of the present disclosure.For those skilled in the art, may be used also on the basis of disclosed above
To make other variations or modification, and these variations or modification are still in the scope of the present disclosure.
Description of symbols
100 lens supports cylinders
101 frameworks
200 shells
300 pedestals
301 bottoms
302 sidewall portions
400 actuators
401 substrates
402 piezoelectric elements
403 silicon rubber
404 charge pumps
500 guide support ball components
501 first ball components
502 second ball components
600 position detecting devices
601 Hall magnet
602 Hall sensors
700 flexible circuit boards
701 interface ends
801 shape memory alloy wires
802 first fixed parts
803 second fixed parts
804 electric current input/output terminals
901 stretch column
902 counterweights
5011 upper spheres
5012 middle part balls
5013 lower spheres
5021 upper spheres
5022 middle part balls
5023 lower spheres.
Claims (10)
1. a kind of lens driver characterized by comprising
Lens supports cylinder, the lens supports cylinder is for keeping at least one lens；
The outside of the lens supports cylinder is arranged in framework；
First fixed part, the quantity of first fixed part are four, and each first fixed part is individually secured to the framework
On a lateral surface in four lateral surfaces；And
Shape memory alloy wire, the quantity of the shape memory alloy wire are four, and every strip memory alloy wire bypasses one
First fixed part, and the electric current input/output terminal of shape memory alloy wire is fixed to the side of the pedestal of the lens driver
On second fixed part of wall portion,
After the shape memory alloy wire is powered, so that the level that the framework is vertical in the optical axis direction of lens driver
It is moved in direction, the framework drives the lens supports cylinder to move in the horizontal direction, to realize the optics of lens
Stabilization.
2. lens driver as described in claim 1, which is characterized in that closed around the shape memory of first fixed part
Two extension lines of gold thread are parallel to each other.
3. lens driver as claimed in claim 1 or 2, which is characterized in that in four the first fixed parts, be fixed to described
Two fixed parts on the two neighboring lateral surface of framework are disposed adjacent, and other two fixed parts are disposed adjacent, described two solid
Determine portion and is arranged with other two fixed parts relative to the catercorner mode of the framework.
4. lens driver as claimed any one in claims 1 to 3, which is characterized in that four strip memory alloy wires
Electric current input/output terminal be disposed adjacent two-by-two and catercorner mode is arranged.
5. lens driver according to any one of claims 1 to 4, which is characterized in that further include:
Actuator, the actuator applies driving force to the lens supports cylinder, so that the lens supports cylinder is along described
Optical axis direction is mobile；And
Guide support ball component, the guide support ball component includes the first ball component and the second ball component, described
First ball component and the second ball component are in contact with the inner sidewall of the lateral wall of the lens supports cylinder and the framework, In
When the lens supports cylinder is moved relative to the framework, the first ball component and the second ball component are rolled
It is dynamic,
Wherein, from the top surface of lens supports cylinder, the actuator is located in a quadrant of plane right-angle coordinate, described
Guide support ball component is located in another quadrant of plane right-angle coordinate, and another quadrant is pair of one quadrant
Quadrant at diagonal position.
6. lens driver as claimed in claim 5, which is characterized in that the actuator is piezoelectric actuator.
7. such as lens driver described in claim 5 or 6, which is characterized in that the first ball component and described second
Ball component respectively includes three balls, and three balls are arranged along the optical axis direction, and upper spheres and lower part are rolled
The diameter of pearl is identical, and is greater than or equal to the diameter of middle part ball.
8. the lens driver as described in any one of claims 1 to 7, which is characterized in that further include lens supports cylinder position
Detection device is set, the lens supports cylinder position detecting device includes Hall magnet and Hall sensor, Hall magnet position
In on the lens supports cylinder, the Hall sensor is located at the lower section of the Hall magnet in optical axis direction,
The quantity of the lens supports cylinder position detecting device is two, and linea angulata setting in pairs, described for detecting respectively
The movement of x-direction and y-direction of the mirror support tube in the horizontal direction.
9. a kind of installation side of the shape memory alloy wire in such as lens driver described in any item of the claim 1 to 8
Method characterized by comprising
Every strip memory alloy wire is bypassed into the first fixed part, two around the shape memory alloy wire of the first fixed part are prolonged
Line is stretched respectively with 90 ° of direction around stretch support post, is respectively set at the both ends of two extension lines around stretch support post
Counterweight stretches shape memory alloy wire by the gravity of counterweight, and after stretching, two articles of extension lines are fixed to
On two fixed parts and remove the counterweight.
10. a kind of camera apparatus characterized by comprising
Such as lens driver described in any item of the claim 1 to 8；
At least one lens being fixed in the lens supports cylinder；And
Receive the imaging sensor of the light by least one lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910735828.4A CN110456473A (en) | 2019-08-09 | 2019-08-09 | The installation method and camera apparatus of lens driver, shape memory alloy wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910735828.4A CN110456473A (en) | 2019-08-09 | 2019-08-09 | The installation method and camera apparatus of lens driver, shape memory alloy wire |
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| CN110456473A true CN110456473A (en) | 2019-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910735828.4A Pending CN110456473A (en) | 2019-08-09 | 2019-08-09 | The installation method and camera apparatus of lens driver, shape memory alloy wire |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111123539A (en) * | 2020-01-19 | 2020-05-08 | 睿恩光电有限责任公司 | Shape memory alloy wire type optical anti-shake mechanism, camera device, and electronic apparatus |
| WO2021138766A1 (en) * | 2020-01-06 | 2021-07-15 | Huawei Technologies Co., Ltd. | Optical image stabilizing system comprising shape memory alloy wires and methods of fabricating thereof |
| WO2022121057A1 (en) * | 2020-12-08 | 2022-06-16 | 诚瑞光学(深圳)有限公司 | Lens driving device |
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| CN106772909A (en) * | 2015-11-23 | 2017-05-31 | 闫敏 | Lens driver |
| CN109901275A (en) * | 2017-12-08 | 2019-06-18 | 宁波舜宇光电信息有限公司 | The method of SMA wire is wound on optical module |
| CN210323538U (en) * | 2019-08-09 | 2020-04-14 | 睿恩光电有限责任公司 | Lens driving device and camera device |
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| CN106772909A (en) * | 2015-11-23 | 2017-05-31 | 闫敏 | Lens driver |
| CN109901275A (en) * | 2017-12-08 | 2019-06-18 | 宁波舜宇光电信息有限公司 | The method of SMA wire is wound on optical module |
| CN210323538U (en) * | 2019-08-09 | 2020-04-14 | 睿恩光电有限责任公司 | Lens driving device and camera device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021138766A1 (en) * | 2020-01-06 | 2021-07-15 | Huawei Technologies Co., Ltd. | Optical image stabilizing system comprising shape memory alloy wires and methods of fabricating thereof |
| CN115004072A (en) * | 2020-01-06 | 2022-09-02 | 华为技术有限公司 | Optical image stabilization system including shape memory alloy wire and method of making the same |
| CN115004072B (en) * | 2020-01-06 | 2023-09-29 | 华为技术有限公司 | Optical image stabilization system including shape memory alloy wire and method of making the same |
| CN111123539A (en) * | 2020-01-19 | 2020-05-08 | 睿恩光电有限责任公司 | Shape memory alloy wire type optical anti-shake mechanism, camera device, and electronic apparatus |
| CN111123539B (en) * | 2020-01-19 | 2024-05-21 | 睿恩光电有限责任公司 | Shape memory alloy wire type optical anti-shake mechanism, camera device and electronic equipment |
| WO2022121057A1 (en) * | 2020-12-08 | 2022-06-16 | 诚瑞光学(深圳)有限公司 | Lens driving device |
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Effective date of registration: 20191129 Address after: No. 4-3-1, Yongtai Road, Renhe District, Panzhihua City, Sichuan Province Applicant after: Ruien photoelectric Co., Ltd Address before: 402160 building 6, No. 3130 Xinglong Avenue, Yongchuan District, Chongqing (in Fenghuang Lake Industrial Park, Yongchuan Industrial Park, Chongqing) Applicant before: Chongqing shine photoelectron Co., Ltd. |