CN207937737U - optical actuator and corresponding camera module and camera module array - Google Patents
optical actuator and corresponding camera module and camera module array Download PDFInfo
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- CN207937737U CN207937737U CN201820053573.4U CN201820053573U CN207937737U CN 207937737 U CN207937737 U CN 207937737U CN 201820053573 U CN201820053573 U CN 201820053573U CN 207937737 U CN207937737 U CN 207937737U
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- end fixing
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- camera lens
- lens module
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Abstract
The utility model provides a kind of optical actuator：Pedestal；Camera lens module, including relative to each other two first sides；And more shape memory alloy wires, two line groups are constituted, described two line groups are arranged in two first sides respectively；The both ends of every shape memory alloy wire are separately fixed at base end fixing device and camera end fixing device, the direction for the resultant force that wherein two line groups act on the camera lens module is consistent with the direction of the optical axis of the camera lens module, and the shape memory alloy wire will pass through two line groups stretches to drive the camera lens module to be moved along the optical axis direction of the camera lens module.The utility model can be substantially reduced the size in optical actuator Y-direction；Shape memory alloy wire phase mutual friction can be prevented while increasing driving force；The stability of camera lens module can be enhanced；The thickness of mobile phone or other smart machines can be reduced by periscopic structure.
Description
Technical field
The utility model is related to optical technical fields, specifically, the utility model is related to optical actuator and accordingly
Camera module and camera module array.
Background technology
Nowadays, as the continuous development of mobile phone industry is grown, smart mobile phone can integrate more and more functions, in mobile phone
Integrated functionality in terms of be difficult in the case of being further continued for promotion, most cell phone manufacturers take pictures the mobile phone that sight is put into
Functionally, it is desirable to by camera function, enhance user experience, obtain the attraction of bigger.It is continuously improved now with mobile phone pixel,
User can obtain the image for the high quality being more clear.But in fact, it is exactly to be difficult that mobile phone photograph, which there is also an issue,
The image taking of distant place is understood, or by after compared with the image magnification of the distant place taken under low range, picture is easy to become
It is fuzzy.It is therefore expected that camera module has the zoom capabilities of big stroke.However smart mobile phone is more and more lightening, mobile phone
In for accommodate camera module space it is extremely limited, this is contradictory to the expectation of the zoom capabilities of bigger with people.
It varies with temperature and flexible property, can be remembered by using shape since marmem (SMA) line has
Alloy wire is recalled instead of conventional motor to drive camera lens to be moved.And due to shape memory alloy wire occupy volume smaller,
It thus can effectively reduce the volume of camera module.
On the other hand, it is more clear in order to which mobile phone can be shot, has higher-quality picture, row insider uncommon
It hopes by taking pictures using periscopic camera module on mobile phone.Although using periscopic camera module camera relative to
There is smaller volume for traditional outer zoom camera, but for mobile phone, the body of existing periscopic camera module
Product is still not small enough, and main cause is that mobile phone the more does the more thin, and the design of interior of mobile phone is also compacter, therefore existing latent prestige
Formula camera module is difficult to have stronger market application prospect since volume is difficult to decrease.
In conclusion currently there is an urgent need to can overcome the solution of drawbacks described above.
Utility model content
The utility model is intended to provide a kind of solution for the above-mentioned at least one defect that can overcome the prior art.
One side according to the present utility model, providing a kind of optical actuator includes：
Pedestal；
Camera lens module, with lateral surface, the lateral surface includes two first sides relative to each other；And
More shape memory alloy wires, constitute two line groups, and described two line groups are arranged in described two respectively
First side；The both ends of wherein every shape memory alloy wire are separately fixed at base end fixing device and camera end fixes dress
It sets, wherein the base end fixing device is fixed together with the pedestal, the camera end fixing device is set to described
One side is simultaneously fixed together with the camera lens module；
Wherein two line groups act on the optical axis in the direction and the camera lens module of the resultant force of the camera lens module
Direction it is consistent, the shape memory alloy wire will pass through two line groups stretches to drive the camera lens module along institute
State the optical axis direction movement of camera lens module.
Wherein, each of described two line groups include two sub-line groups, and each sub-line group includes that two shapes are remembered
Recall alloy wire；
Wherein, for each sub-line group, two shape memory alloy wires are submitted in the projection of the first side
Forked state, and this two shape memory alloy wires are staggered on the direction of the first side so that this two shapes
Shape memory alloys line is non-coplanar.
Wherein, two sub-line groups for being placed in the same first side are configured as symmetry status, so that described
Camera lens module keeps balance.
Wherein, for being arranged in two sub-line groups of the same first side, wherein each sub-line group
It generates because its two shape memory alloy wires are being staggered on the direction of the first side and keeps the camera lens module inclined
The torque turned, the two described sub-line groups are configured as the torque for making the camera lens module deflection for making each generate
It offsets each other or partial offset.
Wherein, the pedestal is support base, and the upper surface of the support base has position limiting structure, to prevent the mirror
Head module deviates the optical axis.
Wherein, the lateral surface further includes two second sides, each second side with the first side phase
It hands over, and two second sides are arranged relative to one another, the position limiting structure includes being respectively arranged at described two
Two the second position limiting structures on the outside of second side.
Wherein, the position limiting structure further includes two first limits being respectively arranged on the outside of two first sides
Structure.
Wherein, the bottom surface of the camera lens module has limit hole, and the position limiting structure is the limit being adapted to the limit hole
Position column, the limited post are set to the corresponding with the limit hole of camera lens module bottom surface of the support base upper surface
Position.
Wherein, the bottom surface of the camera lens module has limited post, and the position limiting structure is the limit being adapted to the limited post
Position hole, the limit hole are set to the position corresponding with the limited post of camera lens module bottom surface of the support base.
Wherein, the camera end fixing device includes being set to the middle section of the first side and protruding outward
Convex block；And the base end fixing device includes the fixed plate being arranged on the outside of the first side, the table of the fixed plate
Face is oppositely arranged with the first side, and with the through-hole being adapted to the convex block.
Wherein, the fixed plate has base end fixing terminal, the convex block on the surface of the first side
It is upper that there is camera end fixing terminal, the every shape memory alloy wire to all have two installation ends, described two installation ends point
It is not installed on the base end fixing terminal and the camera end fixing terminal.
Wherein, each fixed plate all has four base end fixing terminals, and four base ends are solid
Fixed end is separately positioned at the position of the separate convex block on the surface of the first side of the fixed plate.
Wherein, each convex block all has four camera end fixing terminals.
Wherein, each first side all has perpendicular to two edges of the base-plates surface；The camera end is solid
It is the camera end fixing terminal being arranged in the first side to determine device；And the base end fixing device is described to be fixed on
Two columns of pedestal, two columns arranged respectively along two edges and the column and the first side it
Between have gap.
Wherein, each column all has two base end fixing terminals, and there are four described for the first side setting
Camera end fixing terminal；The wherein every shape memory alloy wire all has two installation ends, described two installation end difference
It is installed on the base end fixing terminal and the camera end fixing terminal.
Wherein, each base end fixing device tool there are four base end fixing terminal, fix by each camera end
There are four camera end fixing terminals for device tool；The wherein every shape memory alloy wire all has two installation ends, and described two
A installation end is respectively arranged in the base end fixing terminal and the camera end fixing terminal.
Wherein, there are four angles for each first side tool；Four camera end fixing terminals are respectively arranged in described
Correspond in camera end fixing device at the position at four angles of the first side；And four base end fixing terminals
It is respectively arranged at the position at four angles for corresponding to the first side in the base end fixing device.
Wherein, each first side tool is there are four angle and with two sides of the optical axis for being parallel to the camera lens module
Edge；
Four camera end fixing terminals be respectively arranged in the camera end fixing device correspond to first side
At the position at four angles in face；And
Two in four base end fixing terminals are arranged along one in two edges, four bases
Another two in seat end fixing terminal is along another arrangement in two edges, and along same edge arrangement
The distance between two described base end fixing terminals are less than corresponding the distance between two camera end fixing terminals.
Wherein, each first side has two edges of the optical axis for being parallel to the camera lens module；Described four
Camera end fixing terminal is arranged in the middle section of the first side；And two in four base end fixing terminals
It is arranged along one in two edges, the another two in four base end fixing terminals is along two edges
In another arrangement.
Wherein, belong to arbitrary two shape memory alloy wires of the different sub-line groups the first side projection not
Intersect.
Wherein, each first side has two edges of the optical axis perpendicular to the camera lens module；Described four
Camera end fixing terminal is arranged in the middle section of the first side；And two in four base end fixing terminals
It is arranged along one in two edges, the another two in four base end fixing terminals is along two edges
In another arrangement.
Wherein, there are two shape memory alloy wires for belonging to the different sub-line groups, this two marmems
Projection cross-shaped state of the line in the first side.
Wherein, the base end fixing device and the camera end fixing device are on the optical axis direction of the camera lens module
Height be less than height of the first side on the optical axis direction of the camera lens module.
Another aspect according to the present utility model provides a kind of camera module, including：Previously described optical actuation
Device；And light steering mechanism, the smooth steering mechanism are suitable for the camera lens module of light reflection to the optical actuator；Its
In, the optical axis of the camera lens module is vertical with the incident direction of smooth steering mechanism of light, and the first side enters with the light
The direction for penetrating the smooth steering mechanism is parallel.
Wherein, in the optical actuator, the lateral surface further includes two second sides, and each second side is equal
Intersect with the first side, and two second sides are arranged relative to one another；The second side and the light
The direction of the incident smooth steering mechanism is vertical.
Another aspect according to the present utility model provides a kind of camera module array, which is characterized in that including at least one
A previously described camera module.
Compared with prior art, the utility model has following at least one technique effect：
1, the utility model can be substantially reduced optical actuator Y-direction and (refer to the flat square XOY perpendicular to camera lens optical axis
Y-direction in coordinate system) on size, consequently facilitating dynamic coke module is installed to the high intelligent hand for shielding accounting as front camera
In machine (or other smart machines of high screen accounting).
2, the utility model can in order to dynamic burnt module as front camera be installed to it is high shield accounting smart mobile phone (or
Other smart machines of height screen accounting) in.
3, the shape memory alloy wire that the utility model can be longer in single side arrangement, to increase driving force to drive
Index glass head module moves, while arbitrary two shape memory alloy wires are not in contact with each other each other, to prevent shape memory alloy wire
When driving camera lens is moved, phase mutual friction each other generates abrasion.
4, the utility model can enhance camera lens by eliminating the undesirable torque for making camera lens module deflect
The stability of module.
5, the utility model can reduce the size of the camera module based on SMA by periscopic structure, to allow
It is consistent with the thickness direction of mobile phone or other smart machines that the camera module is arranged to Y-direction, to contribute to mobile phone or its
Its smart machine reduce thickness.
Description of the drawings
Exemplary embodiment is shown in refer to the attached drawing.Embodiment and attached drawing disclosed herein should be considered illustrative
, and not restrictive.
Fig. 1 shows the stereoscopic schematic diagram of the optical actuator of the utility model one embodiment；
Fig. 2 shows the stereoscopic schematic diagrams of the optical actuator of the utility model another embodiment；
Fig. 3 shows the stereoscopic schematic diagram of the optical actuator of another embodiment of the utility model；
Fig. 4 shows the stereoscopic schematic diagram of the optical actuator of the utility model further embodiment；
What Fig. 5 A to E showed optical actuator in the embodiments of deformations of the utility model a series of is arranged in one first
The plane figure schematic diagram of the line group of side 204；
Fig. 6 shows the side view for the camera module that one embodiment of the utility model is provided；
Fig. 7 shows that double based on periscopic structure in the utility model one embodiment take the photograph module；
Fig. 8 shows another embodiment of the utility model shape memory alloy wire optical actuator；
Fig. 9 shows a variant embodiment based on embodiment illustrated in fig. 8；
Figure 10 shows the optical actuator of the embodiment of another deformation of the utility model.
Reference sign：
100- pedestals；
201- support bases；202- camera lens modules；203- shape memory alloy wires；
204- first sides；205- second sides；206- base end fixing devices；
207- camera end fixing devices；208- limited posts；
The first position limiting structures of 209a-；The second position limiting structures of 209b-；210- base end fixing terminals；
211- camera end fixing terminals；301- photosensory assemblies；
302- shape memory alloy wire optics brakes；303- light steering mechanism；
401- periscopic camera modules；The common camera modules of 402-.
Specific implementation mode
Refer to the attached drawing is made more detailed description by the application in order to better understand to the various aspects of the application.It answers
Understand, the description of the only illustrative embodiments to the application is described in detail in these, rather than limits the application in any way
Range.In the specification, the identical element of identical reference numbers.It includes associated institute to state "and/or"
Any and all combinations of one or more of list of items.
It should be noted that in the present specification, the first, second equal statement is only used for a feature and another feature differentiation
It comes, and does not indicate that any restrictions to feature.Therefore, discussed below without departing substantially from teachings of the present application
First main body is also known as the second main body.
In the accompanying drawings, for convenience of description, thickness, the size and shape of object are slightly exaggerated.Attached drawing is merely illustrative
And it is and non-critical drawn to scale.
It will also be appreciated that term " comprising ", " including ", " having ", "comprising" and/or " including ", when in this theory
In bright book use when indicate exist stated feature, entirety, step, operations, elements, and/or components, but do not exclude the presence of or
It is attached with one or more of the other feature, entirety, step, operation, component, assembly unit and/or combination thereof.In addition, ought be such as
When the statement of at least one of " ... " appears in after the list of listed feature, entire listed feature is modified, rather than is modified
Individual component in list.In addition, when describing presently filed embodiment, use " can with " indicate " one of the application or
Multiple embodiments ".Also, term " illustrative " is intended to refer to example or illustration.
As it is used in the present context, term " substantially ", " about " and similar term are used as the approximate term of table, and
Be not used as the term of table degree, and be intended to illustrate by by those skilled in the art will appreciate that, measured value or calculated value
In inherent variability.
Unless otherwise defined, otherwise all terms (including technical terms and scientific words) used herein all have with
The application one skilled in the art's is generally understood identical meaning.It will also be appreciated that term (such as in everyday words
Term defined in allusion quotation) it should be interpreted as having the meaning consistent with their meanings in the context of the relevant technologies, and
It will not be explained with idealization or excessively formal sense, unless clear herein so limit.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 shows the stereoscopic schematic diagram of the optical actuator of the utility model one embodiment, the optical actuator packet
Include pedestal 100, camera lens module 202 and more shape memory alloy wires 203.Pedestal 100 is support base in the present embodiment
201.It includes two first sides 204 and two second sides 205 that camera lens module 202, which has lateral surface, the lateral surface,.Two
First side 204 is arranged relative to each other, and each second side 205 intersects with the first side 204, and described
Two second sides 205 be arranged relative to each other.In the example in fig 1, two first sides of the camera lens module 202
204 be plane and parallel to each other, and two second sides 205 are plane and parallel to each other.The more shape memories close
Gold thread 203 forms two line groups.The two line groups are arranged in two first sides 204 respectively.Wherein every marmem
The both ends of line 203 be separately fixed at base end fixing device 206 and camera end fixing device (due to angle, the mirror in Fig. 1
Fixing device of head end is blocked by base end fixing device 206).The wherein described base end fixing device 206 is fixed with the pedestal
Together, the camera end fixing device 207 is set to the first side 204 and is fixed on one with the camera lens module 202
It rises.In the present embodiment, it is respectively arranged the direction that two line groups in two first sides act on the resultant force of the camera lens module
Consistent with the direction of the optical axis of the camera lens module, the shape memory alloy wire will pass through two line groups, which stretches, carrys out band
The camera lens module is moved to move along the optical axis direction of the camera lens module.In this way, can be only by being arranged in two the first sides
Two line groups in face 204 realize auto-focusing, and two second sides 205 can not arrange shape memory alloy wire, to
Reduce the volume of optical actuator and corresponding camera module.The size in optical actuator Y-direction can especially be reduced.Its
In, Y-direction refers to the Y-direction in the right angle XOY coordinate systems in the plane of camera lens optical axis.Also, Y-direction and the first side
Face 204 is parallel, and X-direction is vertical with first side 204.
Further, in one embodiment referring still to Fig. 1, each line group includes two sub-line groups.Each sub-line
Group includes two shape memory alloy wires 203.Wherein, for each sub-line group, two shape memory alloy wires 203 are in institute
The cross-shaped state of projection of first side 204 is stated, and this two shape memory alloy wires 203 are perpendicular to the first side
It is staggered on 204 direction so that this two shape memory alloy wires 203 are non-coplanar.Above-mentioned crossing condition allows first side 204
On the shape memory alloy wire 203 arranged there is the length of bigger, to improve the stroke of camera lens module 202.With reference to figure 1,
Two shape memory alloy wires 203 in sub-line group intersect so that this two shape memory alloy wires 203 can be along first
The diagonal line of side 204 is arranged, to increase the length of shape memory alloy wire 203 as much as possible.On the other hand, each side
On four shape memory alloy wires 203 be not in contact with each other each other, prevent shape memory alloy wire 203 drive camera lens moved
When, phase mutual friction each other generates abrasion.
Further, in one embodiment, two sub-line group quilts of the same first side 204 are arranged in
It is configured to symmetry status, so that the camera lens module 202 keeps balance.Due to two shape memory alloy wires in sub-line group
203 intersect, but at the same time, this two shape memory alloy wires 203 are wrong on the direction of the first side 204
It opens, this causes this two shape memory alloy wires 203 to be difficult to be arranged to while being parallel to the state of the first side 204,
To generate the torque for making the camera lens module 202 deflect.In other words, for being arranged in the same first side 204
Two sub-line groups, each sub-line group may be because its two shape memory alloy wires 203 be perpendicular to first side
It is staggered on the direction in face 204 and generates the torque for making the camera lens module 202 deflect.And this torque may result in camera lens mould
The stability of block 202 declines.It, can be by configuring the two described sub-line groups to make each generation in the present embodiment
The torque for making the camera lens module 202 deflect offsets each other or partial offset, undesirable makes camera lens mould to eliminate
The torque that block 202 deflects, to enhance the stability of camera lens module 202.
Referring still to Fig. 1, in one embodiment, each first side 204 all has two perpendicular to base-plates surface
Edge.Camera end fixing device is four camera end fixing terminals being arranged in first side 204, and camera end fixing terminal can
To be provided in the fixed structure on 204 surface of first side.Base end fixing device 206 is to be fixed on two columns of pedestal,
Two columns are arranged respectively along two edges and have gap between the column and first side 204.Perpendicular to first
On the direction of side, for column with camera end fixing device there are gap, this gap can be that shape memory alloy wire reserves evacuation
Space prevents from interfering.Each column all has two base end fixing terminals.Wherein every shape memory alloy wire 203 has
There are two installation end, two installation ends are respectively arranged in base end fixing terminal and camera end fixing terminal.
Further, in one embodiment, with reference to figure 1, the upper surface of support base 201 has position limiting structure, to prevent
Only camera lens module 202 deviates optical axis.Position limiting structure includes two second limits in two second sides, 205 outside being respectively arranged at
Bit architecture 209b.In another embodiment, position limiting structure can also include two first sides, 204 outside being respectively set
Two the first position limiting structure 209a.
Referring also to Fig. 1, in one embodiment, on four sides of camera lens module 202, respectively in support base 201
Position limiting structure (position limiting structure may include the first position limiting structure 209a and the second position limiting structure 209b), and any limit are set
There is certain gap between structure and camera lens module 202, is used for for camera lens under the driving of 203 line of shape memory alloy wire
It is moved, the presence of position limiting structure can also limit the motion range of camera lens module 202, prevent camera lens module 202 larger
Outer force effect under can be by strong impact force, to beyond practical desired stroke range, cause shape memory alloy wire
The damage of 203 lines, or even influence the function of entire shape memory alloy wire camera module.Base end fixing device 206 is set to
Support base 201, and base end fixing device 206 has higher structural strength.This is primarily due in seating side
On direction, base end fixing device 206 can be prevented base by the pulling force from shape memory alloy wire 203 by thickening size
Seat end fixing device 206 will produce deformation under the pulling force effect of shape memory alloy wire 203 and even be broken, and influence shape note
Recall the global reliability of alloy wire camera module.
Fig. 2 shows the stereoscopic schematic diagrams of the optical actuator of the utility model another embodiment, as shown in Fig. 2, base
Seat end fixing device 206 may be contained within the first side 204 of installation shape memory alloy wire 203, and two of the same side
Spacing between base end fixing device 206 is less than the size of the camera lens module 202 corresponding to this side, to make pedestal
End fixing device 206 prevents take up the space on two sides for not installing shape memory alloy wire 203, can effectively reduce and not pacify
The spacing between two sides of shape memory alloy wire 203 is filled, the size of module in this direction is reduced.On the other hand, Fig. 2
In optical actuator also eliminate positioned at not installing two sides (i.e. second side 205) of shape memory alloy wire 203 outside
The position limiting structure of side, to further decrease the Y-direction size of optical actuator.
Fig. 3 shows the stereoscopic schematic diagram of the optical actuator of another embodiment of the utility model, and the embodiment is main
Improved is position limiting structure, and to make illustrative clarity, camera end fixing device 207 and base end fixing device have been concealed in Fig. 3
206.With reference to figure 3, the position limiting structure of base-plates surface is to be adapted to limit hole (due to visual angle, limit hole is not shown in Fig. 3)
Limited post 208, the bottom surface of camera lens module 202 has limit hole (being not shown in Fig. 3).Limited post 208 is set to support base
The position corresponding with the limit hole of 202 bottom surface of camera lens module of 201 upper surfaces.
With reference to figure 3, the part in wherein the four of support base 201 corner is provided with limited post 208, camera lens module 202 with
The corresponding position for the one side that support base 201 is in contact is provided with limit hole, passes through the mutual cooperation of limit hole and limited post 208
It realizes the position-limiting action to camera lens module 202, so as to replace position limiting structure 209a and 209b in Fig. 1, further decreases
The volume of shape memory alloy wire optical actuator, and then reduce the volume of corresponding camera module.Wherein, 208 He of limited post
The position relationship of limit hole can also carry out certain transformation, i.e. limited post is arranged in 202 bottom of camera lens module, in support base
Limit hole is arranged in 201 corresponding position, and limited post and limit hole correspond cooperation, realizes that the limit to camera lens module 202 is made
With.Further, the fit clearance between limited post and limit hole is not less than the default row of shape memory alloy wire camera module
Journey, to not influence the proper motion of number shape memory alloy wire camera module.Further, base end fixing device 206,
It needs one shell of increase to be protected on the outside of shape memory alloy wire 203 and camera lens fixing end, prevents during module group assembling,
Shape memory alloy wire 203 is damaged.Shell scheme is preferably arranged on two sides of installation shape memory alloy wire 203
Face can prevent take up the installation space for not installing 203 two sides of shape memory alloy wire in this way, so as to ensure do not pacifying
Fill the size advantage on two sides (i.e. second side) of shape memory alloy wire 203.
Fig. 4 shows the stereoscopic schematic diagram of the optical actuator of the utility model further embodiment.With reference to figure 4, this reality
It applies in example, camera end fixing device 207 includes the convex block for being set to the middle section of first side 204 and protruding outward.Base
Seat end fixing device 206 includes the fixed plate being arranged in 204 outside of first side, surface and 204 phase of first side of fixed plate
To setting, and with the through-hole being adapted to convex block.Fixed plate has base end fixing end on the surface of first side 204
Son 210, has camera end fixing terminal 211 on convex block, and every shape memory alloy wire 203 all has two installation ends, two
Installation end is respectively arranged in base end fixing terminal 210 and camera end fixing terminal 211.Each fixed plate all has four pedestals
Fixing terminal 210, four base end fixing terminals 210 is held to be separately positioned on the surface of first side 204 backwards of fixed plate
Separate convex block position at.In the present embodiment, each convex block all has four camera end fixing terminals 211.
With reference to figure 4, wherein be still arranged on that camera lens module 202 is oppositely arranged two of shape memory alloy wire 203
One side 204, and four shape memory alloy wires 203 per one side are divided to two groups of settings, both threads to be one group, each group of shape note
Recall that alloy wire 203 is arranged in a crossed manner, the both ends of shape memory alloy wire 203 are individually fixed in base end fixing device 206 and camera lens
Hold fixing device 207.In the present embodiment, base end fixing device 206 is set to two first sides 204 being oppositely arranged.Base
A through-hole is arranged in fixing device 206 middle position in seat end, and camera end fixing device 207 extends outwardly from through-hole, and and base end
There are a differences in height for fixing device 206, to ensure that cross one another two shape memory alloy wires 203 will not interfere.
Camera end fixing device 207 is ground wire connecting pin, and shape memory alloy wire 203 is installed on one end of camera end fixing device 207
For connecting ground wire, one end of base end fixing device 206 is installed on for connecting power cord, wherein four marmems
Line 203 can share a ground wire connecting pin, but be connected to one end then every shape memory alloy wire 203 individually control of power cord
System obtains different temperature to realize in varied situations by applying different electric currents to different shape memory alloy wire 203
Different strokes and amount of tension are realized to control shape memory alloy wire 203, are located at different position shapes to control camera lens
State.Further, to ensure the stability of camera lens module 202 during the motion, as possible control shape memory alloy wire 203
The middle section position of camera lens module 202.
Further, Fig. 5 A to E show the arrangement of optical actuator in the embodiments of deformations of the utility model a series of
In the plane figure schematic diagram of the line group of a first side 204.In Fig. 5 A to E, dotted line indicates optical axis direction.
With reference to figure 5A, in one embodiment, base end fixing terminal 210 that there are four each base end fixing device tools,
There are four camera end fixing terminals 211 for each 207 tool of camera end fixing device；Wherein every shape memory alloy wire 203 has
There are two installation end, two installation ends are respectively arranged in base end fixing terminal 210 and camera end fixing terminal 211.Each
There are four angles for one side tool.Four camera end fixing terminals 211 be respectively arranged in camera end fixing device 207 correspond to first
At the position at four angles of side 204.Four base end fixing terminals 210 are respectively arranged in right in base end fixing device 206
It should be at the position at four angles of first side.
With reference to figure 5A, four shape memory alloy wires 203 as shown in the figure are in base end fixing device and camera lens module 202
Installation site be all mutually symmetrical, but in actual installation, due between shape memory alloy wire 203 to be avoided
It interferes, so the actual installation position of shape memory alloy wire 203 has a little bias, may there is shape memory conjunction
Gold thread 203 is not full symmetric situation, but does not influence shape memory alloy wire 203 and camera lens is driven to be moved.
With reference to figure 5B and Fig. 5 C, in the two embodiments, each first side tool is there are four angle and with being parallel to mirror
Two edges of the optical axis of head module 202.Four camera end fixing terminals 211 are respectively arranged in corresponding in camera end fixing device
At the position at four angles of first side.Two in four base end fixing terminals 210 are along one in two edges
It arranges, the another two in four base end fixing terminals 210 is arranged along another in two edges, and along same
The distance between two base end fixing terminals 210 of edge arrangement be less than two corresponding camera end fixing terminals 211 it
Between distance.Relative to the embodiment of Fig. 5 A, the layout type shown by Fig. 5 B and Fig. 5 C may make after completing to install, four
Spacing between strip memory alloy wire 203 expands, consequently facilitating shape memory alloy wire 203 drives camera lens to be moved,
And reduce the risk interfered between different shape memory alloy wire 203.
With reference to figure 5D, in one embodiment, each first side has two of the optical axis for being parallel to camera lens module 202
Edge.Four camera end fixing terminals 211 are arranged in the middle section of first side.In four base end fixing terminals 210
Two are arranged along one in two edges, and the another two in four base end fixing terminals 210 is along in two edges
Another arrangement.Wherein, arbitrary two shape memory alloy wires 203 for belonging to different sub-line groups are not handed in the projection of first side
Fork.In this way, the risk interfered between different shape memory alloy wire can be reduced further.
With reference to figure 5E, in one embodiment, each first side has two of the optical axis perpendicular to camera lens module 202
Edge.Four camera end fixing terminals 211 are arranged in the middle section of first side.In four base end fixing terminals 210
Two are arranged along one in two edges, and the another two in four base end fixing terminals 210 is along in two edges
Another arrangement.Wherein, there are two shape memory alloy wires 203 for belonging to different sub-line groups, this two shape memories close
Projection cross-shaped state of the gold thread 203 in first side.Relative to the embodiment of Fig. 5 A, the layout type shown by Fig. 5 E can make
It obtains after completing to install, the spacing between four strip memory alloy wires expands, consequently facilitating shape memory alloy wire drives
Camera lens is moved, and reduces the risk interfered between different shape memory alloy wire.Relative to the embodiment of Fig. 5 D, figure
Layout type shown by 5E helps to increase the length of shape memory alloy wire, to help to increase the row of camera lens module
Journey.
Further, in some embodiments, base end fixing device 206 and camera end fixing device 207 are in camera lens mould
Height on the optical axis direction of block 202 is less than height of the first side 204 on the optical axis direction of camera lens module 202.
Fig. 8 shows another embodiment of the utility model shape memory alloy wire optical actuator, wherein shape memory
Alloy wire 203 is installed in the position of 202 lower end of closer camera lens module, i.e. the height of base end fixing device 206 is less than mirror
The height of head module 202, and shape memory alloy wire 203 is installed on camera lens module 202 and is also positioned below camera lens height, shape
Shape memory alloys line 203 controls the mass motion of camera lens module 202 by controlling the lower half of position of camera lens module 202, from
And it realizes shape memory alloy wire 203 and camera lens is driven to be moved.
It drives camera lens module to move by the way that shape memory alloy wire to be set to the bottom of camera lens module, can drop
The shoulder height of low profile memory alloy wire camera module, to reduce the volume occupied by shape memory alloy wire camera module.
By adjusting the installation site of shape memory alloy wire, shape memory alloy wire can be controlled in camera lens module side
Occupied space and volume, the spacing between shape memory alloy wire by reducing by two intersections can reduce installation shape
Space occupied by memory alloy wire and volume, but bring a problem that can exactly shape memory alloy wire be caused to be driven simultaneously
Dynamic camera lens stroke becomes smaller so that scheme is not suitable for mobile phone rear camera in the present embodiment.But since mobile phone is proactive
Range demands are much smaller than the range demands of mobile phone rear camera, therefore scheme is suitable for the preposition camera shooting of mobile phone in the present embodiment
Head, and the lightening development of mobile phone can be met.
Further, due to only installing shape note on the side that the one of which of camera lens module 202 is oppositely arranged two-by-two
Recall alloy wire 203, therefore on the direction of the other side, the size of shape memory alloy wire camera module can reduce, by the direction
Corresponding to mobile phone longitudinal size, then it is occupied in mobile phone longitudinal size can effectively to reduce shape memory alloy wire camera module
Space.
Fig. 9 shows a variant embodiment based on embodiment illustrated in fig. 8, that is, reduces the whole high of camera lens module 202
Degree reduces shape memory alloy wire camera module in mobile phone to reduce the whole height of module on the basis of reducing shoulder height
Space occupied by inside makes shape memory alloy wire camera module have more wide applicability.
Figure 10 shows the embodiment optical actuator of another deformation of the utility model.In the embodiment, base end is solid
It includes two columns to determine device 206, they are arranged respectively along first side perpendicular to two edges of support base.Each
Column is respectively arranged two base end fixing terminals.Camera end fixing terminal is set to first side.And camera end fixing end
Son is staggered with the position of base end fixing terminal so that the distance between camera end fixing terminal less than base end fixing terminal it
Between distance.The installation of shape memory alloy wire can be interfered to avoid the position of base end fixing device in this way.
Further, Fig. 6 shows the side view for the camera module that one embodiment of the utility model is provided.This is taken the photograph
As module include photosensory assembly 301, embodiment above the (mould containing camera lens of optical actuator 302 based on shape memory alloy wire
Block) and light steering mechanism 303.The camera module of the present embodiment uses periscopic structure.Based on shape memory alloy wire
Optical actuator 302 and photosensory assembly 301 may make up a camera unit based on shape memory alloy wire, the camera unit side
It puts so that the optical axis direction of the camera lens module of camera unit is vertical with the light incident direction of complete camera module.It may be noted that complete
The light incident direction of whole camera module is ambient light incident to the direction of light steering mechanism 303.It is real by light steering mechanism 303
The transformation of existing light path, incident ray is reflexed in the camera unit based on shape memory alloy wire, you can realizes imaging function.
In the present embodiment, by side view it can be seen that the installation condition of shape memory alloy wire.That is optical actuator
For arranging that the first side of shape memory alloy wire is parallel to the light incident direction of complete camera module.And shape is not arranged and is remembered
Recall light incident direction of the second side perpendicular to complete camera module of alloy wire.In this way, can be saved on incident ray direction
Go out the space of shape memory alloy wire is installed, so as to reduce size of the camera module on incident light direction.When this latent
When prestige formula camera module is installed on smart mobile phone (or other smart machines), camera module can be reduced in interior of mobile phone perpendicular to hand
Occupied space on machine screen orientation.I.e. for traditional module, the camera module in the present embodiment can be preferably
Adaptation and the lightening development trend of mobile phone, and while ensureing photographic quality, experience of preferably taking pictures is brought for user.
Further, since the camera module of the present embodiment is laterally located, the optical axis direction of camera module (refers to camera lens
The optical axis direction of module) it is corresponding be no longer the thickness direction of mobile phone, therefore can reduce mobile phone it is lightening design to image mould
The limitation of size, camera lens module can obtain the scope of activities of bigger on the optical axis direction of camera lens on group optical axis direction.
Further, Fig. 7 shows that double based on periscopic structure in the utility model one embodiment take the photograph module.
In the present embodiment, is constituted using a periscopic camera module 401 and a common camera module 402 and double take the photograph module.Wherein
Common camera module 402 refers to the camera lens optical axis direction camera module consistent with the light incident direction of module.The common camera shooting mould
Group 402 can be in industry it is now conventional common AF or FF modules.Periscopic camera module 401 includes light steering mechanism
It is collectively formed with the camera unit based on shape memory alloy wire.Later stage conjunction is carried out by the image formed to above-mentioned two module
At the photo of high quality can be obtained, to preferably meeting customer need.
In the present embodiment, the optical axis of common module and periscopic module is mutually perpendicular to, and the optical axis direction pair of common module
It should be in the direction of incident light, so that periscopic module will not be limited in the size of optical axis direction by excessive.
Above description is only the better embodiment of the application and the explanation to institute's application technology principle.Art technology
Personnel should be appreciated that utility model range involved in the application, however it is not limited to which the specific combination of above-mentioned technical characteristic forms
Technical solution, while should also cover in the case where not departing from utility model design, by above-mentioned technical characteristic or its etc.
The other technical solutions for carrying out arbitrary combination with feature and being formed.Such as features described above and (but not limited to) disclosed herein
Technical characteristic with similar functions is replaced mutually and the technical solution that is formed.
Claims (26)
1. a kind of optical actuator, which is characterized in that including：
Pedestal；
Camera lens module, with lateral surface, the lateral surface includes two first sides relative to each other；And
More shape memory alloy wires, constitute two line groups, and described two line groups are arranged in described two first respectively
Side；The both ends of wherein every shape memory alloy wire are separately fixed at base end fixing device and camera end fixing device,
Described in base end fixing device be fixed together with the pedestal, the camera end fixing device is set to the first side
And it is fixed together with the camera lens module；
Wherein two line groups act on the side in the direction of the resultant force of the camera lens module and the optical axis of the camera lens module
To consistent, the shape memory alloy wire will pass through two line groups stretches to drive the camera lens module along the mirror
The optical axis direction of head module moves.
2. optical actuator according to claim 1, which is characterized in that each of described two line groups include two
Sub-line group, each sub-line group include two shape memory alloy wires；
Wherein, for each sub-line group, two shape memory alloy wires are cross-shaped in the projection of the first side
State, and this two shape memory alloy wires are staggered on the direction of the first side so that this two shape notes
It is non-coplanar to recall alloy wire.
3. optical actuator according to claim 2, which is characterized in that be arranged in two of the same first side
The sub-line group is configured as symmetry status, so that the camera lens module keeps balance.
4. optical actuator according to claim 3, which is characterized in that be arranged in two of the same first side
The sub-line group is configured as:The torque for making the camera lens module deflection that the two described sub-line groups respectively generate is set mutually to offset
Disappear or partial offset.
5. optical actuator according to claim 1, which is characterized in that the pedestal is support base, the support bottom
The upper surface of seat has position limiting structure, to prevent the camera lens module from deviateing the optical axis.
6. optical actuator according to claim 5, which is characterized in that the lateral surface further includes two second sides,
Each second side intersects with the first side, and two second sides are arranged relative to one another, institute
It includes two the second position limiting structures being respectively arranged on the outside of two second sides to state position limiting structure.
7. optical actuator according to claim 6, which is characterized in that the position limiting structure further includes being respectively arranged at institute
Two the first position limiting structures on the outside of two first sides stated.
8. optical actuator according to claim 5, which is characterized in that the bottom surface of the camera lens module has limit hole,
The position limiting structure is the limited post being adapted to the limit hole, the limited post be set to the support base upper surface with
The corresponding position of the limit hole of the camera lens module bottom surface.
9. optical actuator according to claim 5, which is characterized in that the bottom surface of the camera lens module has limited post,
The position limiting structure is the limit hole being adapted to the limited post, and the limit hole is being set to the support base with the mirror
The corresponding position of the limited post of head module bottom surface.
10. according to the optical actuator described in any one of claim 1-4, which is characterized in that the camera end fixes dress
The convex block set the middle section including being set to the first side and protruded outward；And
The base end fixing device includes the fixed plate being arranged on the outside of the first side, the surface of the fixed plate and institute
It states first side to be oppositely arranged, and with the through-hole being adapted to the convex block.
11. optical actuator according to claim 10, which is characterized in that the first side backwards of the fixed plate
Surface on there is base end fixing terminal, there is on the convex block camera end fixing terminal, the every marmem
Line all has two installation ends, and described two installation ends are respectively arranged in the base end fixing terminal and the camera end is fixed
Terminal.
12. optical actuator according to claim 11, which is characterized in that each fixed plate all has described in four
Base end fixing terminal, four base end fixing terminals are separately positioned on first side backwards of the fixed plate
At the position far from the convex block on the surface in face.
13. optical actuator according to claim 12, which is characterized in that each convex block all has four mirrors
Head end fixing terminal.
14. according to the optical actuator described in any one of claim 1-4, which is characterized in that each first side
It all has perpendicular to two edges of the base-plates surface；
The camera end fixing device is the camera end fixing terminal being arranged in the first side；And
The base end fixing device is to be fixed on two columns of the pedestal, and two columns are respectively along described two
Edge is arranged and has gap between the column and the first side.
15. optical actuator according to claim 14, which is characterized in that each column all has two base ends
Fixing terminal, there are four the camera end fixing terminals for the first side setting；The wherein every shape memory alloy wire
Two installation ends are all had, described two installation ends are respectively arranged in the base end fixing terminal and the camera end fixing end
Son.
16. optical actuator according to claim 2, which is characterized in that each base end fixing device has four
A base end fixing terminal, there are four camera end fixing terminals for each camera end fixing device tool；The wherein every shape
Shape memory alloys line all has two installation ends, and described two installation ends are respectively arranged in the base end fixing terminal and described
Camera end fixing terminal.
17. optical actuator according to claim 16, which is characterized in that there are four angles for each first side tool；
Four camera end fixing terminals are respectively arranged in corresponding to the first side in the camera end fixing device
At the position at four angles；And
Four base end fixing terminals are respectively arranged in corresponding to the first side in the base end fixing device
At the position at four angles.
18. optical actuator according to claim 16, which is characterized in that each first side tool there are four angle and
Two edges with the optical axis for being parallel to the camera lens module；
Four camera end fixing terminals are respectively arranged in corresponding to the first side in the camera end fixing device
At the position at four angles；And
Two in four base end fixing terminals are arranged along one in two edges, four base ends
Another two in fixing terminal is along another arrangement in two edges, and along two of same edge arrangement
The distance between described base end fixing terminal is less than corresponding the distance between two camera end fixing terminals.
19. optical actuator according to claim 16, which is characterized in that each first side, which has, is parallel to institute
State two edges of the optical axis of camera lens module；
Four camera end fixing terminals are arranged in the middle section of the first side；And
Two in four base end fixing terminals are arranged along one in two edges, four base ends
Another two in fixing terminal is along another arrangement in two edges.
20. optical actuator according to claim 19, which is characterized in that belong to arbitrary two of the different sub-line groups
Shape memory alloy wire does not intersect in the projection of the first side.
21. optical actuator according to claim 16, which is characterized in that each first side has perpendicular to institute
State two edges of the optical axis of camera lens module；
Four camera end fixing terminals are arranged in the middle section of the first side；And
Two in four base end fixing terminals are arranged along one in two edges, four base ends
Another two in fixing terminal is along another arrangement in two edges.
22. optical actuator according to claim 21, which is characterized in that there are belong to the different sub-line groups two
Root shape memory alloy wire, projection cross-shaped state of this two shape memory alloy wires in the first side.
23. optical actuator according to claim 1, which is characterized in that the base end fixing device and the camera lens
Hold height of the fixing device on the optical axis direction of the camera lens module less than the first side the camera lens module light
Height in axis direction.
24. a kind of camera module, which is characterized in that including：
Optical actuator described in any one of claim 1-23；And
Light steering mechanism, the smooth steering mechanism are suitable for the camera lens module of light reflection to the optical actuator；
Wherein, the optical axis of the camera lens module is vertical with the incident direction of smooth steering mechanism of light, the first side and institute
The direction for stating the incident smooth steering mechanism of light is parallel.
25. camera module according to claim 24, which is characterized in that in the optical actuator, the lateral surface is also
Including two second sides, each second side intersects with the first side, and two second sides
It is arranged relative to one another；
The second side is vertical with the incident direction of smooth steering mechanism of the light.
26. a kind of camera module array, which is characterized in that including the camera module described at least one claim 24 or 25.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820053573.4U CN207937737U (en) | 2018-01-12 | 2018-01-12 | optical actuator and corresponding camera module and camera module array |
| PCT/CN2018/109681 WO2019137048A1 (en) | 2018-01-12 | 2018-10-10 | Optical actuator, and corresponding camera module and camera module array |
| EP18899895.9A EP3739383B1 (en) | 2018-01-12 | 2018-10-10 | Optical actuator, and corresponding camera module and camera module array |
| US16/771,572 US11733477B2 (en) | 2018-01-12 | 2018-10-10 | Optical actuator, and corresponding camera module and camera module array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820053573.4U CN207937737U (en) | 2018-01-12 | 2018-01-12 | optical actuator and corresponding camera module and camera module array |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207937737U true CN207937737U (en) | 2018-10-02 |
Family
ID=63648576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820053573.4U Active CN207937737U (en) | 2018-01-12 | 2018-01-12 | optical actuator and corresponding camera module and camera module array |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207937737U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019109929A1 (en) * | 2017-12-08 | 2019-06-13 | 宁波舜宇光电信息有限公司 | Optical assembly, image pickup module, and intelligent device provided with image pickup module |
| WO2019137048A1 (en) * | 2018-01-12 | 2019-07-18 | 宁波舜宇光电信息有限公司 | Optical actuator, and corresponding camera module and camera module array |
| CN110032024A (en) * | 2018-01-12 | 2019-07-19 | 宁波舜宇光电信息有限公司 | Optical actuator and corresponding camera module and camera module array |
| CN110261988A (en) * | 2019-06-01 | 2019-09-20 | 瑞声科技(新加坡)有限公司 | Autofocus lens component and its Atomatic focusing method |
| CN110275269A (en) * | 2019-06-01 | 2019-09-24 | 瑞声科技(新加坡)有限公司 | A kind of camera lens prism mould group |
| WO2020074914A1 (en) * | 2018-10-10 | 2020-04-16 | Cambridge Mechatronics Limited | Sma actuator assemblies |
| CN111835942A (en) * | 2019-04-23 | 2020-10-27 | 华为技术有限公司 | Camera driving device, camera module and mobile terminal |
| WO2020243865A1 (en) * | 2019-06-01 | 2020-12-10 | 瑞声光学解决方案私人有限公司 | Periscopic lens module and prism device applied to same |
| WO2020243866A1 (en) * | 2019-06-01 | 2020-12-10 | 瑞声光学解决方案私人有限公司 | Prism device applied to periscopic lens module and periscopic lens module |
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| WO2019109929A1 (en) * | 2017-12-08 | 2019-06-13 | 宁波舜宇光电信息有限公司 | Optical assembly, image pickup module, and intelligent device provided with image pickup module |
| WO2019137048A1 (en) * | 2018-01-12 | 2019-07-18 | 宁波舜宇光电信息有限公司 | Optical actuator, and corresponding camera module and camera module array |
| CN110032024A (en) * | 2018-01-12 | 2019-07-19 | 宁波舜宇光电信息有限公司 | Optical actuator and corresponding camera module and camera module array |
| CN110032024B (en) * | 2018-01-12 | 2024-02-02 | 宁波舜宇光电信息有限公司 | Optical actuator, and corresponding camera module and camera module array |
| US11733477B2 (en) | 2018-01-12 | 2023-08-22 | Ningbo Sunny Opotech Co., Ltd. | Optical actuator, and corresponding camera module and camera module array |
| CN112867961A (en) * | 2018-10-10 | 2021-05-28 | 剑桥机电有限公司 | SMA actuator assembly |
| WO2020074914A1 (en) * | 2018-10-10 | 2020-04-16 | Cambridge Mechatronics Limited | Sma actuator assemblies |
| CN111835942A (en) * | 2019-04-23 | 2020-10-27 | 华为技术有限公司 | Camera driving device, camera module and mobile terminal |
| CN111835942B (en) * | 2019-04-23 | 2021-12-03 | 华为技术有限公司 | Camera driving device, camera module and mobile terminal |
| WO2020244466A1 (en) * | 2019-06-01 | 2020-12-10 | 诚瑞光学(常州)股份有限公司 | Lens prism module |
| WO2020243866A1 (en) * | 2019-06-01 | 2020-12-10 | 瑞声光学解决方案私人有限公司 | Prism device applied to periscopic lens module and periscopic lens module |
| CN110275269B (en) * | 2019-06-01 | 2021-09-17 | 瑞声光学解决方案私人有限公司 | Lens prism module |
| WO2020243865A1 (en) * | 2019-06-01 | 2020-12-10 | 瑞声光学解决方案私人有限公司 | Periscopic lens module and prism device applied to same |
| CN110261988B (en) * | 2019-06-01 | 2022-01-11 | 瑞声光学解决方案私人有限公司 | Automatic focusing lens assembly and automatic focusing method thereof |
| CN110275269A (en) * | 2019-06-01 | 2019-09-24 | 瑞声科技(新加坡)有限公司 | A kind of camera lens prism mould group |
| CN110261988A (en) * | 2019-06-01 | 2019-09-20 | 瑞声科技(新加坡)有限公司 | Autofocus lens component and its Atomatic focusing method |
| CN112130399A (en) * | 2019-06-25 | 2020-12-25 | 新思考电机有限公司 | Driving device, camera module and electronic equipment |
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