CN204856000U - Micro lens drive arrangement and electronic image seizure equipment - Google Patents
Micro lens drive arrangement and electronic image seizure equipment Download PDFInfo
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- CN204856000U CN204856000U CN201520522614.6U CN201520522614U CN204856000U CN 204856000 U CN204856000 U CN 204856000U CN 201520522614 U CN201520522614 U CN 201520522614U CN 204856000 U CN204856000 U CN 204856000U
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Abstract
The utility model relates to a micro lens drive arrangement, including shell, two at least strings, an optical image stabilizing mean and a auto focus mechanism, optical image stabilizing mean includes lens holder to and two at least coils and at least one permanent magnet, auto focus mechanism includes that a auto focus moves movable support, at least one coil, at least one permanent magnet to reach and go up shell fragment and lower shell fragment, the in -connection portion of going up the shell fragment is connected to auto focus and moves the movable support upper end, and outer joint portion is connected to on the fixed portion of auto focus mechanism, the in -connection portion of shell fragment is connected to auto focus and moves the movable support lower extreme down, and outer joint portion is connected to on the fixed portion of auto focus mechanism, on the one end of two at least strings was connected to lens holder, the other end was connected to the lower part that auto focus moved movable support. The utility model discloses still relate to the electronic image equipment of catching. The utility model discloses a micro lens drive arrangement can realize auto focus and optical image stabilization function simultaneously.
Description
Technical field
The utility model relates to lens driving apparatus, more particularly, relates to a kind of micro-lens driving device and comprises its electronic image capture equipment.
Background technology
Autofocus lens based on voice coil motor (VCM) has become the standard configuration of high-end camera cell phone or smart mobile phone.Except auto-focusing (AF), optical image stabilization (OIS) is becoming the interest place in market, and the camera lens having auto-focusing and optical image stabilization very soon concurrently will become the new standard configuration of high-end camera cell phone or smart mobile phone.Therefore, be necessary to provide a kind of lens driving apparatus having auto-focusing and optical image stabilization concurrently.
Utility model content
The purpose of this utility model is to provide a kind of micro-lens driving device with auto-focusing and optical image stabilization function.Because automatic focusing function requires that camera lens moves along optical axis (i.e. Z axis) direction, optical image stabilization function then requires that camera lens edge is perpendicular to optical axis direction (i.e. either direction in XY plane), so the purpose of this utility model is also to provide a kind of camera lens that can drive along the micro-lens driving device of X, Y and Z axis movement.
Micro-lens driving device provided by the utility model comprises shell, at least two strings, an optical image stabilization mechanism and autofocus mechanisms; Described optical image stabilization mechanism comprises the lens bracket for carrying imaging lens, and at least two coils and at least one permanent magnet, described at least two coils and at least one permanent magnet described operatively interrelated, move along the direction of the optical axis that is basically perpendicular to imaging lens to promote described lens bracket; Described autofocus mechanism comprises an auto-focusing traversing carriage that can move forward and backward along optical axis direction, at least one coil, at least one permanent magnet, and upper shell fragment and lower shell fragment, at least one coil described and at least one permanent magnet described operatively interrelated, move along optical axis direction to promote described auto-focusing traversing carriage; The interior connecting portion of described upper shell fragment is connected to described auto-focusing traversing carriage upper end, and the outer connecting portion of described upper shell fragment is connected on the fixed part of described autofocus mechanism; The interior connecting portion of described lower shell fragment is connected to described auto-focusing traversing carriage lower end, and the outer connecting portion of described lower shell fragment is connected on the fixed part of described autofocus mechanism; One end of described at least two strings is connected on described lens bracket, and the other end is connected to the bottom of described auto-focusing traversing carriage.
According in an embodiment of micro-lens driving device of the present utility model, the effective elasticity coefficient of described lower shell fragment is greater than the effective elasticity coefficient of described upper shell fragment.
According in an embodiment of micro-lens driving device of the present utility model, the material of described upper shell fragment is different with the material of lower shell fragment.According in an embodiment of micro-lens driving device of the present utility model, described upper shell fragment or lower shell fragment are monolithic construction or are made up of multiple independently spring plate unit.
The outer connecting portion of described upper shell fragment or lower shell fragment also comprises electrode section, in order to connect described coil and extraneous circuit.
According in an embodiment of micro-lens driving device of the present utility model, one end of described string is connected with described lens bracket, and the other end is connected with the interior connecting portion of described lower shell fragment.
According in an embodiment of micro-lens driving device of the present utility model, described optical image stabilization mechanism and described autofocus mechanism share at least one permanent magnet.
According in an embodiment of micro-lens driving device of the present utility model, the lower end of described auto-focusing traversing carriage is provided with reinforcement, in order to increase the rigidity of described auto-focusing traversing carriage, resistance to deformation, the lower end of described auto-focusing traversing carriage is connected with connecting portion in described lower shell fragment by described reinforcement.Described reinforcement first can be fixed on the lower end of described auto-focusing traversing carriage, then be connected with connecting portion in described lower shell fragment, the lamination order that formation auto-focusing traversing carriage, reinforcement, lower shell fragment are such, can also be the interior connecting portion of lower shell fragment between described reinforcement and the lower end of described auto-focusing traversing carriage, form the lamination order that auto-focusing traversing carriage, lower shell fragment, reinforcement are such.
According in an embodiment of micro-lens driving device of the present utility model, the upper end of described lens bracket is provided with string web member, and the upper end of described string is connected with described string web member.According in another embodiment of micro-lens driving device of the present utility model, described string web member can be integrated into the part for lens bracket.
According in an embodiment of micro-lens driving device of the present utility model, described string web member is provided with circuit.
According in an embodiment of micro-lens driving device of the present utility model, described string web member is the printed circuit board (PCB) being provided with circuit.
According in an embodiment of micro-lens driving device of the present utility model, described string comprises and is selected from by the plastic cord of the metal wire of metal wire, enamel-cover metal wire, kalamein, kalamein, conductive organism single and mixes the line in the group that the combination line that forms forms by these lines.
According in an embodiment of micro-lens driving device of the present utility model, the material of described string comprises the material in the group being selected from and being made up of conductive material, non-conducting material, polymeric material, plastics, rubber and organic fiber.
Another object of the present utility model is to provide a kind of electronic image capture equipment, comprises above-described micro-lens driving device.
Implement micro-lens driving device of the present utility model, there is following beneficial effect: micro-lens driving device of the present utility model both comprised autofocus mechanism, comprise again optical image stabilization mechanism, auto-focusing and optical image stabilization function can be realized simultaneously.And further, the effective elasticity coefficient of lower shell fragment is greater than the effective elasticity coefficient of shell fragment, owing to employing harder lower shell fragment, so make the performance of optical image stabilization mechanism more superior.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of an embodiment of micro-lens driving device of the present utility model;
Fig. 2 a-2d is the schematic diagram of upper shell fragment in micro-lens driving device of the present utility model;
Fig. 3 a-3d be in micro-lens driving device of the present utility model shell fragment system schematic diagram;
Fig. 4 a-4c is the schematic diagram of an embodiment of micro-lens driving device of the present utility model;
Fig. 5 a-5c is the structural representation of the optical image stabilization mechanism of micro-lens driving device of the present utility model;
Fig. 6 a-6c is the structural representation of the autofocus mechanism of micro-lens driving device of the present utility model;
Fig. 7 a is the structural representation that in micro-lens driving device of the present utility model, string is connected with optical image stabilization mechanism and autofocus mechanism;
Fig. 7 b is the enlarged drawing in A portion in Fig. 7 a;
Fig. 8 a is the syndeton schematic diagram of string and optical image stabilization mechanism in micro-lens driving device of the present utility model;
Fig. 8 b is the syndeton schematic diagram of string and autofocus mechanism in micro-lens driving device of the present utility model.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and describe embodiment of the present utility model in detail.In following description in detail, list many concrete details, to provide the thorough understanding to the theme that claim is protected.But those skilled in the art person will be understood that, claim theme required for protection can be implemented, and does not need these concrete details.In addition, be not described in detail by method, equipment or the system that those of ordinary skill is known, become not obvious to avoid the main body making claim protect.
" embodiment " is related to or " embodiment " may imply that specific feature, structure or the feature described together with special embodiment can be included at least one embodiment of the theme that claim is protected in instructions.Therefore, the word " in one embodiment " that in this instructions, each place occurs or " embodiment " are not used in reference to identical embodiment or any one described specific embodiment.In addition, should be appreciated that described specific feature, structure or feature can combine in one or more embodiments in every way.Usually, certainly, these and other problem can change along with the concrete linguistic context of application.Therefore, the description of these terms or the special context of application can provide the useful guidance relevant with the inference of this linguistic context.
Similarly, term used herein " with ", "and/or" and "or" can comprise various implication, these implications depend on the linguistic context that these terms use at least partly.Typically, if "or" and "and/or" are for associating an inventory, such as A, B or C, mean A, B and C during for comprising implication, means A, B or C during for getting rid of implication.In addition, term used herein " one or more " is used to describe independent any feature, structure or feature, or is used to some combination of Expressive Features, structure or feature.But it should be noted that this is only indicative example, the theme that claim is protected is not limited to this example.
In the description of this instructions, it will be appreciated that, term "front", "rear", " on ", D score, " upper end ", " lower end ", " top ", the orientation of the instruction such as " bottom " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.Therefore, " top " and " bottom " can replace with the equivalence such as " top " and " bottom ", " first " and " second ", " left side " and " right side ".
Should be appreciated that, in instructions herein and claims, when an element " is connected to " another element or " is connected " with another element, this must not mean that an element is fastened, fixes or be otherwise connected to another one element.On the contrary, term " connection " means that an element directly or is indirectly connected to another one element, or it and another one element machinery or electric connection.
Should be appreciated that protection is not limited to above-described preferred embodiment, needless to say, various amendment or change can be made and do not depart from the protection domain defined herein.
Fig. 1 is micro-lens driving device of the present utility model embodiment schematic diagram.As shown in the figure, micro-lens driving device provided by the utility model comprises shell 1, at least two string 2, optical image stabilization mechanisms 3 and an autofocus mechanism 4.Wherein, optical image stabilization mechanism 3 comprises one for carrying the lens bracket 31 of imaging lens, at least two coils 32, and at least one permanent magnet 30a, at least two coils 32 are operatively interrelated with at least one permanent magnet 30a, move along the direction of the optical axis 300 being basically perpendicular to camera lens to promote lens bracket 31, if the direction of optical axis 300 is Z-direction, the direction perpendicular to optical axis 300 is the either direction in XY plane.Autofocus mechanism 4 comprises an auto-focusing traversing carriage 41 (or being called auto-focusing mobile platform) that can move forward and backward along optical axis 300 direction, at least one coil 42, at least one permanent magnet 30b, and upper shell fragment 43 and lower shell fragment 44, at least one coil 42 is operatively interrelated with at least one permanent magnet 30b, moves along optical axis 300 direction to promote auto-focusing traversing carriage 41.The interior connecting portion 431 of upper shell fragment 43 is connected to auto-focusing traversing carriage 41 upper end, and the outer connecting portion 432 of upper shell fragment 43 is connected on the fixed part of autofocus mechanism; The interior connecting portion 441 of lower shell fragment 44 is connected to auto-focusing traversing carriage 41 lower end, and the outer connecting portion 442 of lower shell fragment 44 is connected on the fixed part of autofocus mechanism.Article at least two, one end of string 2 is connected on lens bracket 31, and the other end is then connected on auto-focusing traversing carriage 41.Because auto-focusing traversing carriage 41 and lens bracket 31 are coupled together by least two strings 2, thus make auto-focusing traversing carriage 41 passed to lens bracket 31 along the movable of optical axis 300 direction by least two strings 2, force lens bracket 31 as one man to move forward and backward along optical axis direction along with auto-focusing traversing carriage 41.Thus make micro-lens driving device of the present utility model achieve the function of driving lens bracket 31 along the movement of X, Y, Z axis direction.
Referring to Fig. 2 a and Fig. 2 b, in the embodiment of micro-lens driving device of the present utility model, upper shell fragment 43 can be an independently overall structure shell fragment, as shown in Figure 2 a; Also can be made up of multiple independently spring plate unit 43a, 43b, 43c, 43d, as shown in Figure 2 b.Defining a shell fragment system (or being called composite elastic sheet) is a shell fragment being functionally equivalent to an overall structure shell fragment be made up of multiple independently spring plate unit, as shown in Figure 2 b, and one namely for being made up of four spring plate units upper shell fragment.For lower shell fragment 44, the same with upper shell fragment 43, can be similarly an independently overall structure shell fragment, referring to Fig. 2 a, also can be made up of, referring to Fig. 2 b multiple independently spring plate unit.Now the structure of above shell fragment 43 is that example is described, and no matter be monoblock type shell fragment or a composite elastic sheet, all shell fragments can be divided into three parts, connecting portion 431, outer connecting portion 432 and pars intermedia 433 namely.Interior connecting portion 431 be upper shell fragment 43 in order to connect the part of auto-focusing traversing carriage 41, and outer connecting portion 432 be upper shell fragment 43 in order to connect the fixed part in autofocus mechanism, or fixed part in micro-lens driving device.Pars intermedia 433 is the part of upper shell fragment 43 between interior connecting portion 431 and outer connecting portion 432, is upper shell fragment 43 produces elastic force part in order to carry out elastic deformation.As shown in Figure 2 a-2d, the part that thick dashed line frame encloses is outer connecting portion 432, and the part that fine dotted line frame encloses is interior connecting portion 431, and remaining part is then pars intermedia 433.All upper shell fragments 43 and lower shell fragment 44, in it, the number of connecting portion and outer connecting portion is indefinite, is at least one.Although there are 4 inside and outside connecting portions in the embodiment shown by Fig. 2 b, needless to say, employing two, three or more inside and outside connecting portion do not depart from the protection domain in this definition yet in other embodiments.In some other embodiments, shell fragment is outside interior connecting portion, outer connecting portion and pars intermedia, also can comprise electrode section 434, electrode section 434 is stretched out by a part for shell fragment, do not have distortion function, but can as the electrode of connecting coil, the expandable part allowing externally fed circuit pass through and coil electrical connection.
In order to further illustrate the performance of upper and lower shell fragment, be necessary to define at this effective elasticity coefficient to upper and lower shell fragment, effective elasticity coefficient is also referred to as equivalent elastic coefficient.The effective elasticity coefficient of shell fragment or shell fragment system is defined as follows: as shown in Figure 3 a, is a plane shell fragment system 45 (or being called composite elastic sheet) be made up of four independent shell fragment 45a, 45b, 45c, 45d.Coordinate system defines as figure institute, is with shell fragment system 45 under the situation not having distortion, within the geometric center of connecting portion 451 points of abutment rings formed or the center of circle be true origin O.Usually lens bracket there is a circular hole can pass through to make camera lens and be installed on it.So the interior connecting portion 451 of shell fragment system 45 is generally symmetric with the center of circle of this circular hole.It is to be appreciated that symmetry is here only for sake of convenience, one not in the utility model necessary condition.XY plane and shell fragment planes overlapping, and Z axis is on the direction perpendicular to shell fragment plane.In micro-lens driving device of the present utility model, all interior connecting portion 451 of shell fragment system 45 can be connected on lens bracket, and because lens bracket is rigidity, thus all interior connecting portions as one man move or move.The outer connecting portion 452 of shell fragment system 45 all can be connected to shell, pedestal or be connected to be fixed on shell or pedestal annex on, so all outer connecting portion 452 of shell fragment system 45 is all fixed.When acting on lens bracket effectively, lens bracket can move along the direction of power, thus cause all interior connecting portion 451 of shell fragment system 45 to produce the displacement consistent with lens bracket, cause the pars intermedia 453 of all spring plate units to produce corresponding deformation, produce elastic force.When statics balance, the equal and opposite in direction of make a concerted effort f and the directed force F of the elastic force that all pars intermedias 453 produces and direction is contrary.In this case, we can define effective elasticity coefficient by Hooke's law.As shown in Fig. 3 b and Fig. 3 c, when acting force is along the plane normal z direction of shell fragment system 45, all interior connecting portion of lens bracket under that force with spring plate system 45, along z displacement Δ Z, is obtained by Hooke's law
F
z＝-f
z＝-k
z·ΔZ
Then k
zbe defined as the effective elasticity coefficient of shell fragment system 45 along Z-direction.In like manner, as shown in Figure 3 d, when acting force is that the interior connecting portion displacement in the direction of shell fragment system 45 can be decomposed into and be made up of displacement X, the Δ Y of X and Y-direction along in the plane of shell fragment system 45 during either direction.By resolution of force rule, acting force also can be analyzed to the component at X and Y-direction, and this component can be obtained by Hooke's law
F
x＝-f
x＝-k
x·ΔX
F
y＝-f
y＝-k
y·ΔY
Then k
xand k
ybe defined as shell fragment system 45 along the effective elasticity coefficient on X and Y-direction.F
x, f
ybe respectively the component that elastic force is made a concerted effort in x and y direction.
In micro-lens driving device of the present utility model, the upper shell fragment 43 of autofocus mechanism and lower shell fragment 44, can be living structure, may not be.Wherein the geometric configuration being meant to shell fragment 43 and lower shell fragment 44 of living structure is just the same.When material is the same, the same geometric configuration causes shell fragment 43 and lower shell fragment 44 along the effective elasticity coefficient on X, Y and Z-direction too, namely equal.In certain embodiments, the structure of upper shell fragment 43 and lower shell fragment 44 is different, and naturally, upper and lower shell fragment is also different along the effective elasticity coefficient on the direction of X, Y and Z, namely unequal.But in certain embodiments, although the structure of upper shell fragment 43 and lower shell fragment 44 is different, by meticulous geometry design, still can obtain along the equal upper shell fragment 43 of the effective elasticity coefficient on the direction of X, Y and Z and lower shell fragment 44.In further embodiments, although the structure of upper shell fragment 43 and lower shell fragment 44 is different, by meticulous shell fragment material design, still can obtain along the equal upper shell fragment 43 of the effective elasticity coefficient on the direction of X, Y and Z and lower shell fragment 44.In further embodiments, although upper shell fragment 43 is the same with the structure of lower shell fragment 44, by meticulous shell fragment material design, shell fragment 43 and lower shell fragment 44 can be made unequal along the effective elasticity coefficient on the direction of X, Y and Z.
As shown in Figure 1, in the present embodiment, the lens bracket 31 of optical image stabilization mechanism 3 is connected on the auto-focusing traversing carriage 41 of autofocus mechanism by least two strings 2.As shown in Figure 1, the tie point of string 2 and auto-focusing traversing carriage 41 is in auto-focusing traversing carriage 41 upper end.In some other embodiments, tie point can be arranged on any position on auto-focusing traversing carriage 41, as upper end, and lower end, or the part between top and bottom.When lens bracket 31 is subject to the axial acting force of the vertical light of optical image stabilization mechanism, this acting force also can pass to auto-focusing traversing carriage 41 by this tie point.In general embodiment, in order to avoid auto-focusing traversing carriage 41 produces the movement perpendicular to optical axis direction under the effect of acting force, upper shell fragment 43 and lower shell fragment 44 along the effective elasticity coefficient in X, Y-direction than large along the effective elasticity coefficient in Z-direction.In certain embodiments, in order to suppress the movement of auto-focusing traversing carriage 41 on vertical optical axis direction further, the shell fragment near tie point is arranged to larger than the shell fragment away from tie point along the effective elasticity coefficient of all directions.Specifically, if tie point is the upper end or the upper surface near zone that are arranged on auto-focusing traversing carriage 41, then the effective elasticity coefficient of upper shell fragment 43 along all directions is all arranged to be greater than the effective elasticity coefficient of lower shell fragment 44 on its correspondence direction.Otherwise, if tie point is the lower end or the lower surface near zone that are arranged on auto-focusing traversing carriage 41, then the effective elasticity coefficient of lower shell fragment 44 along all directions is all arranged to be greater than the effective elasticity coefficient of upper shell fragment 43 on its correspondence direction.Needless to say, above-mentioned all be applicable in the shell fragment system that also can be applied to (or composite elastic sheet) of shell fragment.
Fig. 4 a-4c is a specific embodiment schematic diagram of the utility model micro-lens driving device, and in this figure, shell does not provide as the default parts given tacit consent to.Wherein, Fig. 4 a is structural scheme of mechanism, and Fig. 4 b is STRUCTURE DECOMPOSITION figure, and Fig. 4 c is sectional view diagonally.As shown in the figure, in the present embodiment, micro-lens driving device provided by the utility model comprises shell, at least two string 2, optical image stabilization mechanisms 3 and an autofocus mechanism 4.Wherein, optical image stabilization mechanism 3 comprises a lens bracket 31, for carrying camera lens.Autofocus mechanism 4 comprises an auto-focusing traversing carriage 41 (or being called auto-focusing mobile platform), and upper shell fragment 43 and lower shell fragment 44.Wherein, one end of string 2 is connected on lens bracket 31, and the other end of string 2 is then connected on auto-focusing traversing carriage 41.The interior connecting portion 431 of upper shell fragment 43 is connected to the upper end of auto-focusing traversing carriage 41, and the outer connecting portion 432 of upper shell fragment 43 is connected on magnet holder 5 or pedestal 6; Wherein descend the interior connecting portion 441 of shell fragment 44 to be connected to auto-focusing traversing carriage 41 lower end, its outer connecting portion 442 is connected on magnet holder 5 or pedestal 6.In an embodiment of the present utility model, one end of string 2 is connected to the lower end of auto-focusing traversing carriage 41, and the other end is then connected to the upper end of lens bracket 31.In another embodiment of the present utility model, wherein the upper shell fragment 43 of autofocus mechanism and the shape and structure of lower shell fragment 44 are identical, and the effective elasticity coefficient of upper shell fragment 43 and lower shell fragment 44 is also equal.In the present embodiment, the shape and structure of upper shell fragment 43 and lower shell fragment 44 is different (referring to Fig. 2 c and 2d), and in the effective elasticity coefficient ratio of lower shell fragment 44, the effective elasticity coefficient of shell fragment 43 is large, or briefly, lower shell fragment 44 is harder than upper shell fragment 43, relatively difficult distortion.
Can find out from Fig. 4 c, in the present embodiment, optical image stabilization mechanism 3 and autofocus mechanism 4 share at least one permanent magnet 30.Wherein the upper operating ground of the coil 42 of autofocus mechanism and permanent magnet 30 is interrelated, promotes auto-focusing traversing carriage 41 move along optical axis direction to produce electromagnetic force.Wherein, the coil 32 of optical stabilization mechanism and the bottom of permanent magnet 30 operatively interrelated, with produce electromagnetic force promote lens bracket 31 move along the direction being basically perpendicular to optical axis.In other embodiments, the upper-lower position of the coil 42 of autofocus mechanism and the coil 32 of optical image stabilization mechanism can be exchanged.In the present embodiment, the coil 42 of autofocus mechanism and the coil 32 of optical image stabilization mechanism are all operatively interrelated with the face of same permanent magnet 30.Although do not provide at this instructions, those of ordinary skill in the art can understand, in some other embodiments, the coil 42 of autofocus mechanism and the coil 32 of optical image stabilization mechanism can be operatively interrelated with the face of different permanent magnets 30.Such as, the coil 42 of autofocus mechanism and the extreme face of N of permanent magnet 30 operatively interrelated, and the upper or lower surface of the coil 32 of optical image stabilization mechanism and permanent magnet 30 is operatively interrelated.
Fig. 5 a and 5b is the embodiment of an optical image stabilization mechanism of the utility model micro-lens driving device.In the present embodiment, the optical image stabilization mechanism 3 of micro-lens driving device comprises lens bracket 31, and lens bracket 31 is for loading camera lens, and camera lens defines optical axis 300, i.e. the axis of camera lens.Lens bracket 31 is positioned at the inner side of auto-focusing traversing carriage 41, the periphery of lens bracket 31 is provided with optical image stabilization coil 32, optical image stabilization coil 32 generates an electromagnetic field when being energized, and this electromagnetic field and permanent magnet 30 interact to drive lens bracket 31 to move along the direction of Vertical camera lens optical axis.Optical image stabilization coil 32 is at least two, and in the present embodiment, optical image stabilization coil 32 is four, and the periphery along lens bracket 31 is evenly arranged.Needless to say, arrange two, three, even more permanent magnet do not depart from protection domain in this definition yet.Can be identical permanent magnet 30 with the interactional permanent magnet of optical image stabilization coil 32 30 with the interactional permanent magnet of auto-focusing coil 42 30, also can be the corresponding different separately permanent magnet 30 of optical image stabilization coil 32 and auto-focusing coil 42.
Fig. 5 c is the string web member of optical image stabilization mechanism.The upper end of lens bracket 31 is provided with string web member 33, string web member 33 is platy structure, and string web member 33 by conductive material, insulating material or can be made up of compound substance, such as pcb board, when string web member 33 is pcb boards, it can also be printed with circuit 331.Even if when using conductive material or insulating material, string web member 33 still can be provided with circuit 331 above, such as uses copper cash that the A point on string web member and B point are electrically connected.If when using conductive material as string web member 33, will insulation processing be noted especially, to avoid short circuit.In the present embodiment, string web member 33 is the upper ends being fixed on lens bracket 31.In some other embodiment, string web member 33 can be fixed on any one position on lens bracket 31.In other embodiment, string web member 33 can combine with lens bracket 31, becomes as a whole.In this case, string web member 33 can be the various structure such as some projections, ring, hole, jog on lens bracket 31.
Fig. 6 a-6c is an embodiment of the autofocus mechanism in micro-lens driving device of the present utility model.Wherein, Fig. 6 a is the decomposing schematic representation of autofocus mechanism 4, and Fig. 6 b is corresponding part assembling schematic diagram, and Fig. 6 c is the schematic diagram of the autofocus mechanism 4 assembled.In the present embodiment, autofocus mechanism 4 comprises pedestal 6, upper shell fragment 43, lower shell fragment 44, magnet holder 5, at least one permanent magnet 30, at least one coil 42 and auto-focusing traversing carriage 41; Magnet holder 5 is fixed on pedestal 6; At least one permanent magnet 30 is fixed in magnet holder 5; Auto-focusing traversing carriage 41 is provided with at least one coil 42, and at least one coil 42 of autofocus mechanism is operatively interrelated with at least one permanent magnet 30, moves along optical axis to promote auto-focusing traversing carriage 41; The interior connecting portion 431 wherein going up shell fragment 43 is connected to the upper end of auto-focusing traversing carriage 41, and the outer connecting portion 432 of upper shell fragment 43 is connected on magnet holder 5 or pedestal 6; The interior connecting portion 441 of lower shell fragment 44 is connected to the lower end of auto-focusing traversing carriage 41, and the outer connecting portion 442 of lower shell fragment 44 is connected on magnet holder 5 or pedestal 6.In some embodiments of the present utility model, wherein the upper shell fragment 43 of autofocus mechanism and the shape and structure of lower shell fragment 44 are identical, and the effective elasticity coefficient of upper shell fragment 43 and lower shell fragment 44 is also equal.In the present embodiment, the shape and structure of upper shell fragment 43 and lower shell fragment 44 is different, and in the effective elasticity coefficient ratio of lower shell fragment 44, the effective elasticity coefficient of shell fragment 43 is large, or briefly, lower shell fragment 44 is harder than upper shell fragment 43, relatively difficult distortion.
In the present embodiment, in order to make auto-focusing traversing carriage 41, there is better intensity, auto-focusing traversing carriage 41 is prevented to be out of shape, the reinforcement 46 of annular is provided with in the lower end of auto-focusing traversing carriage 41, in order to increase the rigidity of auto-focusing traversing carriage 41, resistance to deformation, reinforcement 46 is platy structure, can be made up of metal or nonmetallic materials, also can be made up of compound substance.The lower end of auto-focusing traversing carriage 41 is connected with connecting portion 441 in lower shell fragment 44 by reinforcement 46, particularly, reinforcement 46 is fixed on the lower end of auto-focusing traversing carriage 41, reinforcement 46 is connected with the interior connecting portion 441 of lower shell fragment 44, therefore forms the lamination order that auto-focusing traversing carriage 41, reinforcement 46, lower shell fragment 44 are such.In certain embodiments, the interior connecting portion 441 of lower shell fragment 44 is fixed on the lower end of auto-focusing traversing carriage 41, reinforcement 46 is connected with the interior connecting portion 441 of lower shell fragment 44, therefore forms the hierarchical sequence that auto-focusing traversing carriage 41, lower shell fragment 44, reinforcement 46 are such.In other embodiment, reinforcement 46 is connected to form a complex with the interior connecting portion 441 of lower shell fragment 44, and this complex is fixed on the bottom of auto-focusing traversing carriage 41 by connecting portion 441 in reinforcement 46 or lower shell fragment 44, but not on end face.In other embodiment, reinforcement is also used as string web member simultaneously.
Fig. 7 a and 7b is the sectional view of an embodiment of micro-lens driving device of the present utility model, in order to the mode that string connects to be described.In Fig. 7 a and 7b, lens bracket 31 chord web member 33 belongs to optical image stabilization mechanism, is positioned at the left side of sectional view.In figure, lens bracket 31 is painted as to be parked on the pedestal of autofocus mechanism.Mandatory declaration, is not here connected between lens bracket 31 and pedestal 6.So lens bracket 31 can be moved by opposite base 6.In some instances, be equipped with a gap between lens bracket 31 and pedestal 6, namely lens bracket 31 is not directly parked on pedestal 6, but is suspended among the air on pedestal 6.In the present embodiment, string web member 33 is fixed on lens bracket 31 upper end, and string 2 is then connected with string web member 33.In the present embodiment, the other end of string 2 is connected with lower shell fragment 44.In other embodiments, string 2 can be connected with reinforcement 46.In other embodiment, string 2 can be directly connected on auto-focusing traversing carriage 41.
No matter the connection of string chord web member, or string and shell fragment, reinforcement, auto-focusing traversing carriage connected mode, the various method that can couple together securely can be taked to carry out.As shown in figs. 8 a and 8b, can be that bonding agent 7 bonds, the mode such as soldering or fusion weld.Also can be the modes such as mechanical binding.
In the present embodiment, the string 2 in optical image stabilization mechanism, can use conductive material or electrically non-conductive material (i.e. insulating material).Conductive material comprises the combination line of a kind of line in metal wire, enamel-cover metal wire, the metal wire of kalamein, the plastic cord of kalamein, conductive organism single or wherein several line.Non-conducting material then comprises various macromolecule polymeric material, plastics, rubber, organic fiber etc.
The utility model additionally provides a kind of electronic image capture equipment, it has according to micro-lens driving device of the present utility model, such as, can be the equipment for electronic image capture of the camera, video recorder, smart mobile phone, camera, monitor etc. with the micro-lens driving device disclosed in above-described embodiment.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, also can make a lot of form, these all belong within protection of the present utility model.
Claims (14)
1. a micro-lens driving device, is characterized in that, comprises shell, at least two strings, an optical image stabilization mechanism and autofocus mechanisms;
Described optical image stabilization mechanism comprises the lens bracket for carrying imaging lens, and at least two coils and at least one permanent magnet, described at least two coils and at least one permanent magnet described operatively interrelated, move along the direction of the optical axis that is basically perpendicular to imaging lens to promote described lens bracket;
Described autofocus mechanism comprises an auto-focusing traversing carriage that can move forward and backward along optical axis direction, at least one coil, at least one permanent magnet, and upper shell fragment and lower shell fragment, at least one coil described and at least one permanent magnet described operatively interrelated, move along optical axis direction to promote described auto-focusing traversing carriage;
The interior connecting portion of described upper shell fragment is connected to described auto-focusing traversing carriage upper end, and the outer connecting portion of described upper shell fragment is connected on the fixed part of described autofocus mechanism; The interior connecting portion of described lower shell fragment is connected to described auto-focusing traversing carriage lower end, and the outer connecting portion of described lower shell fragment is connected on the fixed part of described autofocus mechanism;
One end of described at least two strings is connected on described lens bracket, and the other end is connected to the bottom of described auto-focusing traversing carriage.
2. micro-lens driving device according to claim 1, is characterized in that, the effective elasticity coefficient of described lower shell fragment is greater than the effective elasticity coefficient of described upper shell fragment.
3. micro-lens driving device according to claim 2, is characterized in that, the material of described upper shell fragment is different with the material of lower shell fragment.
4. micro-lens driving device according to claim 2, is characterized in that, described upper shell fragment or lower shell fragment are monolithic construction or are made up of multiple independently spring plate unit.
5. micro-lens driving device according to claim 2, is characterized in that, the outer connecting portion of described upper shell fragment or lower shell fragment also comprises electrode section, in order to connect described coil and extraneous circuit.
6. micro-lens driving device according to claim 1, is characterized in that, one end of described string is connected with described lens bracket, and the other end is connected with the interior connecting portion of described lower shell fragment.
7. micro-lens driving device according to claim 2, is characterized in that, described optical image stabilization mechanism and described autofocus mechanism share at least one permanent magnet.
8. micro-lens driving device according to claim 1, is characterized in that, the lower end of described auto-focusing traversing carriage is connected with a reinforcement, in order to increase the rigidity of described auto-focusing traversing carriage, resistance to deformation; And the interior connecting portion of described lower shell fragment is connected with described reinforcement.
9. micro-lens driving device according to claim 1, is characterized in that, the upper end of described lens bracket is provided with string web member, and the upper end of described string is connected with described string web member.
10. micro-lens driving device according to claim 9, is characterized in that, described string web member is provided with circuit.
11. micro-lens driving devices according to claim 9, is characterized in that, described string web member is the printed circuit board (PCB) being provided with circuit.
12. micro-lens driving devices according to claim 1, it is characterized in that, described string comprises metal wire, enamel-cover metal wire, the metal wire of kalamein, plastic cord, the conductive organism single of kalamein or is mixed the combination line formed by these lines.
13. micro-lens driving devices according to claim 1, is characterized in that, the material of described string comprises conductive material, non-conducting material, polymeric material, plastics, rubber or organic fiber.
14. 1 kinds of electronic image capture equipment, comprise the micro-lens driving device as described in any one of claim 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522614.6U CN204856000U (en) | 2015-07-17 | 2015-07-17 | Micro lens drive arrangement and electronic image seizure equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520522614.6U CN204856000U (en) | 2015-07-17 | 2015-07-17 | Micro lens drive arrangement and electronic image seizure equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204856000U true CN204856000U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520522614.6U Expired - Fee Related CN204856000U (en) | 2015-07-17 | 2015-07-17 | Micro lens drive arrangement and electronic image seizure equipment |
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| Country | Link |
|---|---|
| CN (1) | CN204856000U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272138A (en) * | 2016-04-01 | 2017-10-20 | 台湾东电化股份有限公司 | Lens driving mechanism and control method thereof |
| CN107450251A (en) * | 2017-08-25 | 2017-12-08 | 高瞻创新科技有限公司 | A kind of spring system and the camera lens anti-shake apparatus using the spring system |
| CN111474805A (en) * | 2020-05-26 | 2020-07-31 | 上海工程技术大学 | MEMS lens driver |
| US10935809B2 (en) | 2016-04-01 | 2021-03-02 | Tdk Taiwan Corp. | Lens driving mechanism and method for controlling the same |
-
2015
- 2015-07-17 CN CN201520522614.6U patent/CN204856000U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272138A (en) * | 2016-04-01 | 2017-10-20 | 台湾东电化股份有限公司 | Lens driving mechanism and control method thereof |
| US10935809B2 (en) | 2016-04-01 | 2021-03-02 | Tdk Taiwan Corp. | Lens driving mechanism and method for controlling the same |
| US11598975B2 (en) | 2016-04-01 | 2023-03-07 | Tdk Taiwan Corp. | Lens driving mechanism and method for controlling the same |
| CN107450251A (en) * | 2017-08-25 | 2017-12-08 | 高瞻创新科技有限公司 | A kind of spring system and the camera lens anti-shake apparatus using the spring system |
| CN111474805A (en) * | 2020-05-26 | 2020-07-31 | 上海工程技术大学 | MEMS lens driver |
| CN111474805B (en) * | 2020-05-26 | 2021-09-24 | 上海工程技术大学 | MEMS lens driver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20190717 |