CN201060303Y - Lens drive apparatus with lines type preload function - Google Patents
Lens drive apparatus with lines type preload function Download PDFInfo
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- CN201060303Y CN201060303Y CNU2007201525233U CN200720152523U CN201060303Y CN 201060303 Y CN201060303 Y CN 201060303Y CN U2007201525233 U CNU2007201525233 U CN U2007201525233U CN 200720152523 U CN200720152523 U CN 200720152523U CN 201060303 Y CN201060303 Y CN 201060303Y
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Abstract
The utility model discloses a lens driving device with linear preloading function, comprising a fixed part, a moving guiding part, a moving part and at least one linear elastic part. The fixed part is provided with an air core coil. The moving part which is provided with a hollow magnet group can move along the moving guiding part and then the moving part is arranged on the fixed part, so when the air core coil is electrified, the air core coil and the hollow magnet group generate the electromagnetic thrust which enables the moving part to move. Besides, both ends of each linear elastic part are respectively connected with the fixed part and the moving part. The linear elastic part exerts the lateral preloading force, the axial preloading force and the axial restoring force on the moving part.
Description
Technical field
The utility model relates to a kind of lens driving apparatus, relates in particular to a kind of lens driving apparatus with the pre-compression functions of line formula.
Background technology
In recent years, it is more prevalent that handheld apparatus is equipped with the trend of image extraction module, is accompanied by the better and littler market demand of volume to hand-held matching requirements performance, and image extraction module faces the more double requirements of high image quality and miniaturization.Raising at the capture image quality, be to improve pixel on the one hand, handheld apparatus image extraction module market trend is brought up to mega pixel, 2,000,000, three mega pixels gradually by 300,000 pixels of VGA grade, even towards more high-grade 4,000,000, five mega pixels development.Except the lifting of pixel, the sharpness of capture also is subjected to concern more, so even the handheld apparatus image extraction module is the optical zoom function development by focusing the capture function towards the automatic focus function of the optics of similar camera also.
The principle of work of the automatic focus function of optics is the different far and near distances according to the capture target, and the camera lens in the moderately mobile image extraction module makes that the optical imagery of capture target is focused on the imageing sensor exactly, thereby produces distinct image.At present, more common to the type of drive that camera lens moves of in image extraction module, driving step motor driving, Piezoelectric Driving and voice coil motor (Voice Coil Motor, VCM) mode such as driving are arranged.
In general, the mechanism of voice coil motor is placed in coil in the magnetic circuit that contains permanent magnet to constitute.According to Fleming's left-hand rule, when conducting electricity, coil will produce interactive propelling power with permanent magnet, thereby move the load bearing seat that connects permanent magnet, and then drive is fixed on the camera lens carrying slide on the load bearing seat, and flow through the size of current of coil by adjustment, reach the purpose of optical zoom, focusing.
Yet, drive camera lens at voice coil motor and do and move forward and backward and when reaching the purpose of optical zoom, focusing, the gap between the moving member of image extraction module and the fixture surface of contact, the free deflection angle when regular meeting causes camera lens to move is excessive, thereby the reduction image quality.Therefore, use voice coil motor to do the purpose of optical zoom, focusing, need high-precision positioning function, also need on the relative beat of stationary shaft, do high-precision requirement simultaneously, to meet the performance of optical imagery with optical axis.
Mention a kind of voice coil motor 3 in the TaiWan, China patent publication No. No. 200525859 " voice coil motor ".Shown in Figure 1A, voice coil motor 3 comprises slide 31, magnetic circuit component 32, coil 33, a plurality of guiding steel axle 341,342 and base 35.Slide 31 is rigidly connected with magnetic circuit component 32, and coil 33 is individually fixed in base 35 with a plurality of guiding steel axles 341,342.Wherein, shown in Figure 1B, magnetic circuit component 32 provides the leakage field line of force 37 to see through gap 36 and a plurality of guiding steel axle 341,342 magnetic interlinkages, to produce magnetic precompression 381,382.These magnetic precompression 381,382 formed resultant moments can be eliminated the gap between moving member and the fixture surface of contact 311,312, so that slide 31 can obtain low friction when moving forward and backward, not have free beat, high-precision motion result.
Yet, aforementioned voice coil motor 3 needs to use yoke that the leakage field line of force 37 is guided to outer rim and a plurality of guiding steel axle 341,342 magnetic interlinkages, to reach the effect of magnetic precompressed, yet, the configuration of yoke can influence the difficulty in the manufacturing, also limit simultaneously the configuration of other assembly, in miniaturization, also had its bottleneck.
The utility model content
The purpose of this utility model is to provide a kind of lens driving apparatus with the pre-compression functions of line formula, the characteristic demand that it moves according to the space constraint and the camera lens of configurations of lenses in the image extraction module, adopt the line formula elastic component of at least one non-coincidence (dislocation) to produce side direction precompression and axial restoring force, reach " when electromagnetic push disappeared, the axial restoring force that described line formula elastic component provides can be returned to moving member initial position " to be applied in " making the circle hole shape of camera lens carrying slide or open arc breasting face be close to mobile guiding part " respectively.
In order to achieve the above object, the utility model provides a kind of lens driving apparatus with the pre-compression functions of line formula, and it comprises: fixture, mobile guiding part, moving member and at least one line formula elastic component.This fixture has air core coil on it.This moving member has hollow magnetite group on it, and this moving member can move guiding part along this and moves (movably) and be arranged on this fixture.Like this, when this air core coil energising, this air core coil and this hollow magnetite group produce the electromagnetic push that this moving member is moved.Moreover the two ends of each line formula elastic component are connected to this fixture and this moving member, and described line formula elastic component applies side direction precompression and axial restoring force on this moving member.
In order to achieve the above object, the utility model also provides a kind of lens driving apparatus with the pre-compression functions of line formula, and it comprises: fixture, mobile guiding part, moving member and at least one line formula elastic component.This fixture has hollow magnetite group on it.This moving member has air core coil on it, and this moving member can move guiding part along this and moves (movably) and be arranged on this fixture.Like this, when this air core coil energising, this air core coil and this hollow magnetite group produce the electromagnetic push that this moving member is moved.Moreover the two ends of each line formula elastic component are connected to this fixture and this moving member, and described line formula elastic component applies side direction precompression and axial restoring force on this moving member.
The described line formula elastic component that the utility model adopts, provide the side direction precompression on this moving member, make this moving member when mobile, be subjected to the influence of side direction precompression, can eliminate and fixture between the gap, thereby closely be contacted with fixture, and then obtain the low motion result that rubs, do not have free beat, high precision.Simultaneously, described line formula elastic component is very easy in configuration and assembling, and can not add the difficulty in the manufacturing, and the elasticity on other arrangement of components also is provided, and helps the development of application product miniaturization.
In order further to understand technology, means and the effect that the utility model is taked, see also following about detailed description of the present utility model and accompanying drawing.Yet following embodiment and respective drawings only are used to provide reference and explanation, should not be construed as the restriction to the utility model protection domain.
Description of drawings
Figure 1A is the structural representation of known voice coil motor;
Figure 1B is the A-A sectional view of Figure 1A;
Fig. 2 is the structural representation of the utility model lens driving apparatus first embodiment;
Fig. 3 is the 3-3 sectional view of Fig. 2;
Fig. 4 is the structural representation of the utility model lens driving apparatus second embodiment;
Fig. 5 is the 5-5 sectional view of Fig. 4;
Fig. 6 is the structural representation of the utility model lens driving apparatus the 3rd embodiment;
Fig. 7 is the structural representation of the utility model lens driving apparatus the 4th embodiment; And
Fig. 8 is the structural representation of the utility model lens driving apparatus the 5th embodiment.
Wherein, each description of reference numerals is as follows among Figure 1A and the 1B: 3, and voice coil motor; 31, slide; 311,312, surface of contact; 32, magnetic circuit component; 33, coil; 341,342, guiding steel axle; 35, base; 36, the gap; 37, the leakage field line of force; 381,382, the magnetic precompression.
Each description of reference numerals is as follows in Fig. 2～8: 2,2 ', 4,4 ', and lens driving apparatus; 21,41,61, camera lens carrying slide; 610, sliding eye; 212,412, the chute jack; 22,42,62, stationary shaft; 23,43, holder; 232,432, open perforation; 234,434, the enclosed type perforation; 24,44, base; 25,45, air core coil; 26,26 ', 46, the hollow magnetite is thin; 260, the first hollow magnetites; 261, the second hollow magnetites; 262, the hollow magnetic conductive disk; 27,47,67, line formula elastic component; P1, the side direction precompression; P2, axially restoring force.
Embodiment
Please refer to Fig. 2, be the structural representation of the utility model lens driving apparatus first embodiment.The utility model lens driving apparatus 2 includes: camera lens carrying slide 21, two mobile guiding parts, holder 23, base 24, air core coil 25, hollow magnetite group 26, two line formula elastic components 27.
As shown in Figure 2, camera lens carries slide 21 and is provided with the usefulness of camera lens (indicating) as capture, and camera lens carrying slide 21 and the moving member of hollow magnetite group 26 through assembling formation the utility model lens driving apparatus 2.And holder 23, base 24 and air core coil 25 constitute the fixture of the utility model lens driving apparatus 2 after assembling.
In addition, this holder 23 extends upward from this base 24.These two mobile guiding parts can be two stationary shaft 22, described stationary shaft 22 is fixedly installed on this base 24 and is used to connect this fixture and this moving member, and be placed in the circle hole shape or the open arc breasting face inner edge of camera lens carrying slide 21, as the guiding that this moving member moves, make this moving member can on this fixture, carry out axial moving.Wherein this stationary shaft 22 is made of permeability magnetic material.Promptly generate an electromagnetic field after these air core coil 25 conductions, the magnetic line of force that electromagnetic field and this hollow magnetite group 26 are distributed interacts, thereby produces electromagnetic push, and this electromagnetic push can be used to promote this moving member and moves axially.
Moreover the mobile guiding part of the utility model lens driving apparatus 2 can be changed to by stationary shaft 22: at least one is fixedly installed on this base 24 and is used to connect the slipping plane of this fixture and this moving member, with the guiding of moving as this moving member.
Refer again to Fig. 2, described line formula elastic component 27 adopts the medium of conductive material as these air core coil 25 power supplies.Moreover, described line formula elastic component 27 has fixed part (not indicating) and pre-splenium (not indicating) respectively, wherein this fixed part is connected in this holder 23, and pre-splenium is connected in this camera lens carrying slide 21, and pre-splenium is used to apply side direction precompression P1 in this camera lens carrying slide 21.Side direction precompression P1 allows camera lens carry the circle hole shape of slide 21 or the surface that open arc breasting face is close to stationary shaft 22, makes moving member when moving axially, and obtains low friction, does not have free beat, high-precision motion result.Described line formula elastic component 27 also provides axial restoring force (reseting elasticity) P2 in this moving member simultaneously, and this axial restoring force P2 and aforementioned electromagnetic thrust have opposite effect power.When electromagnetic push disappeared, the axial restoring force P2 that described line formula elastic component 27 provides can be returned to moving member initial position.
Still with reference to figure 2, in the utility model first embodiment, camera lens carrying slide 21 is provided with two chute jacks 212, and holder 23 then is provided with corresponding two enclosed types perforation 234.Described line formula elastic component 27 is non-coincidence line formula elastic component, and it is connected between described chute jack 212 and the described enclosed type perforation 234.
Cooperate Fig. 2, please refer to Fig. 3, it is the 3-3 sectional view of Fig. 2.This hollow magnetite group 26 is made up of the first hollow magnetite 260, the second hollow magnetite 261 and the hollow magnetic conductive disk 262 that is engaged between this first and second hollow magnetite 260,261.This first and second hollow magnetite 260,261 is relatively to be combined in two opposition sides of this hollow magnetic conductive disk 262 with magnetic pole.Wherein, magnetic line of force Φ 1, Φ 2 that this hollow magnetic conductive disk 262 receives this first and second hollow magnetite 260,261 to be distributed, and make this magnetic line of force Φ 1, Φ 2 pass through this air core coil 25, and interact with electromagnetic field that this air core coil 25 conduction backs produce, drive this moving member to produce electromagnetic push.
In other words, because the first hollow magnetite 260 and the second hollow magnetite 261 are incorporated into hollow magnetic conductive disk 262 with identical polar magnetic, therefore the magnetic line of force Φ 1 that is distributed, Φ 2 can form the effect of repelling each other, and can not influence each other, and magnetic line of force Φ 1, Φ 2 can be received concentrated by hollow magnetic conductive disk 262 simultaneously.Magnetic line of force Φ 1, Φ 2 are respectively from the N utmost point lower surface of the first hollow magnetite 260 and the N utmost point upper surface of the second hollow magnetite 261, via 262 guidings of hollow magnetic conductive disk, and the air gap that turns to gap slidably to form, magnetic line of force Φ 1, Φ 2 see through air gap and pass through air core coil 25, get back to the S utmost point upper surface of the first hollow magnetite 260 and the S utmost point lower surface of the second hollow magnetite 261 more respectively, and form two closed magnetic paths.Magnetic line of force Φ 1, when Φ 2 passes through air core coil 25, can interact with the electromagnetic field that air core coil 25 conduction back is produced, and then produce electromagnetic push.
The utility model is taken in two hollow magnetites 260,261 magnetic line of force Φ 1 that disperse out, Φ 2 concentrated by hollow magnetic conductive disk 262, again air core coil 25 is also effectively passed through in the concentrated magnetic line of force Φ 1 of take in, Φ 2 guidings, two hollow magnetites 260,261 magnetic line of force Φ 1 that disperse out, Φ 2 can not leaked, move thereby obtain enough driving force drive camera lenses effectively.
Simultaneously, be incorporated into the design of hollow magnetic conductive disk 262 with identical polar magnetic by the first hollow magnetite 260 and the second hollow magnetite 261, the magnetic line of force Φ 1, the Φ 2 that allow the first hollow magnetite 260 and the second hollow magnetite 261 be distributed form the effect of repelling each other, thereby can not produce the effect of magnetic interlinkage, also promptly avoided causing magnetic line of force Φ 1, Φ 2 influence each other.
Cooperate Fig. 2, please refer to Fig. 4, it is the structural representation of the utility model lens driving apparatus second embodiment.Identical in assembly in the utility model first embodiment lens driving apparatus 2 ' and the first embodiment lens driving apparatus 2, indicate with same-sign.The magnetic circuit of second embodiment and first embodiment and the principle of work of circuit and the effect that reaches are identical.Through comparing, its main difference is: the holder 23 of second embodiment is provided with at least one open E type perforation 232 and replaces enclosed types perforation 234 among first embodiment, to reduce enclosed type perforation 234 spent man-hour on the threading step in assembling process.Owing to use enclosed type perforation 234 as the tie point of line formula elastic component 27 on holder 23, in assembling, must be connected in the chute jack 212 of camera lens carrying slide 21 by a first end line formula elastic component 27, the other end is passed enclosed type perforation 234 again and be fixedly connected on the holder 23, this threading step can allow the speed of assembling slack-off.
Therefore, in the utility model second embodiment, use open E type perforation 232 as the tie point of line formula elastic component 27 on holder 23, the staff only needs elder generation that one end of line formula elastic component 27 is connected in the chute jack 212 of camera lens carrying slide 21 when assembling, again with other end cross-over connection in open E type perforation 232 and be fixedly connected in the holder 23 and get final product, this mode has improved assembling speed greatly, thereby has strengthened output.
Moreover in a second embodiment, sectional view shown in Figure 5 is identical with the principle of Fig. 3 among first embodiment.Wherein this hollow magnetite group 26 ' is engaged with hollow magnetic conductive disk 262 by the first hollow magnetite 260 and forms.Therefore, the magnetic line of force Φ 1 that this hollow magnetic conductive disk 262 receives this first hollow magnetite 260 to be distributed, and make this magnetic line of force Φ 1 pass through this air core coil 25, and interact with electromagnetic field that this air core coil 25 conduction backs produce, drive this moving member to produce electromagnetic push.
In other words, second embodiment removes the second hollow magnetite 261 among first embodiment, and only provides magnetic line of force Φ 1 with the first hollow magnetite 260.Similarly, the magnetic line of force Φ 1 that hollow magnetic conductive disk 262 receives the first hollow magnetite 260 to be distributed, and make magnetic line of force Φ 1 pass through air core coil 25, and interact with electromagnetic field that these air core coil 25 conduction backs produce, drive this moving member to produce electromagnetic push.
In the lens driving apparatus 2 ' of the utility model second embodiment, magnetic line of force Φ 1 is from the N utmost point lower surface of the first hollow magnetite 260, and received concentrated by hollow magnetic conductive disk 262, via 262 guidings of hollow magnetic conductive disk, and turn to the slidably formed air gap in gap, magnetic line of force Φ 1 sees through air gap and passes through air core coil 25, returns the S utmost point upper surface of the first hollow magnetite 260, and forms a closed magnetic path.When magnetic line of force Φ 1 passes through air core coil 25, can interact with the electromagnetic field that air core coil 25 conduction backs are produced, and then produce electromagnetic push.
The magnetic line of force Φ 1 that the utility model is dispersed out with the first hollow magnetite 260 by hollow magnetic conductive disk 262 takes in concentrated, and with the concentrated magnetic line of force Φ of take in 1 guiding and effectively pass through air core coil 25, the magnetic line of force Φ 1 unlikely leakage that allows the first hollow magnetite 260 disperse is out moved thereby obtain enough driving force drive camera lenses effectively.
Please refer to Fig. 6, it is the structural representation of the utility model lens driving apparatus the 3rd embodiment.The utility model lens driving apparatus 4 includes: camera lens carrying slide 41, two mobile guiding parts, holder 43, base 44, air core coil 45, hollow magnetite group 46, and two line formula elastic components 47.Wherein, these two mobile guiding parts can be two stationary shaft 42 or two slipping planes.
As shown in Figure 6, camera lens carries slide 41 and is provided with the usefulness of camera lens (indicating) as capture, and camera lens carrying slide 41 and the moving member of air core coil 45 through assembling formation the utility model lens driving apparatus 4.And holder 43, base 44 and hollow magnetite group 46 constitute the fixture of the utility model lens driving apparatus 4 after assembling.Described stationary shaft 42 is fixedly installed on this base 44, and is placed in the circle hole shape or the open arc breasting face inner edge of camera lens carrying slide 41, as the guiding that this moving member moves, allows this moving member can carry out axial moving on this fixture.Promptly generate an electromagnetic field after these air core coil 45 conductions, the magnetic line of force that electromagnetic field and this hollow magnetite group 46 are distributed interacts, thereby produces electromagnetic push, and this electromagnetic push can be used to promote this moving member and moves axially.
Refer again to Fig. 6, described line formula elastic component 47 has fixed part (not indicating) and pre-splenium (not indicating) respectively, wherein this fixed part is connected in this holder 43, and pre-splenium is connected in and this camera lens carrying slide 41, and pre-splenium is used for applying side direction precompression P1 in this camera lens carrying slide 41.Side direction precompression P1 allows camera lens carry the circle hole shape of slide 41 or the surface that open arc breasting face is close to stationary shaft 42, makes moving member when moving axially, and obtains low friction, does not have free beat, high-precision motion result.Described line formula elastic component 47 also provides axial restoring force (reseting elasticity) P2 in this moving member simultaneously, and this axial restoring force P2 and aforementioned electromagnetic thrust have opposite effect power.When electromagnetic push disappeared, the axial restoring force P2 that described line formula elastic component 47 provides can be returned to moving member initial position.
Still with reference to figure 6, camera lens carrying slide 41 is provided with two chute jacks 412, and holder 43 then is provided with corresponding two enclosed types perforation 434.Described line formula elastic component 47 is non-coincidence line formula elastic component, and it is connected between described chute jack 412 and the described enclosed type perforation 434.Moreover this hollow magnetite group 46 can be selected as the hollow magnetite group 2 of first embodiment or the hollow magnetite group 2 ' of second embodiment according to actual needs.
Cooperate Fig. 6, please refer to Fig. 7, it is the structural representation of the utility model lens driving apparatus the 4th embodiment.Identical in assembly in the lens driving apparatus 4 ' of the utility model the 4th embodiment and the 3rd embodiment lens driving apparatus 4, indicate with same-sign.The magnetic circuit of the 4th embodiment and the 3rd embodiment and the principle of work of circuit are identical with the effect that reaches, through comparing, its main difference is in: the holder 43 of the 4th embodiment the enclosed types perforation 434 that at least one open E type perforation 432 replaces the 3rd embodiment is set, to reduce enclosed type perforation 434 spent man-hour on the threading step in assembling process.Owing to use enclosed type perforation 434 as the tie point of line formula elastic component 47 on holder 43, when assembling, must be connected in the chute jack 412 of camera lens carrying slide 41 by a first end line formula elastic component 47, the other end is passed enclosed type perforation 434 again and be fixedly connected on the holder 43, this threading step can allow the speed of assembling slack-off.
Please refer to Fig. 8, it is the structural representation of the utility model lens driving apparatus the 5th embodiment.The utility model the 5th embodiment discloses moving member (this adds coil (for example first and second embodiment) or magnetite (for example third and fourth embodiment) for camera lens carrying slide 61) and has two sliding eyes 610 that cooperate with stationary shaft 62, and the elliptical aperture of described sliding eye 610 for being parallel to each other.Moreover according to different design requirements, this elliptical aperture can be blind hole or open bore.In addition, the shrinkage direction of the long limit of this elliptical aperture and two line formula elastic components 67 is same direction.
Like this, the utility model the 5th embodiment passes through the setting of this ellipse sliding eye 610, and has following advantage:
1, two elliptical apertures (two sliding eyes 610) can be by the fine tune of fixture and moving member relative angle, and absorb [axle base " reach the mechanical tolerance of " distance between borehole ", make when moving member is packed fixture into more or less freely.
2, the minor face of two elliptical apertures (two sliding eyes 610) helps to suppress moving member (especially this camera lens carrying slide 61) and tilts to rock in the rotation of X-axis, thereby helps to improve the optical quality of camera lens, helps to improve the smooth-going degree of slip simultaneously.
3, the long limit of two elliptical apertures (two sliding eyes 610) can be used as the amount of contraction of described line formula elastic component 67 when X-direction is crooked.
4, moving member (especially this camera lens carrying slide 61) can obtain moving of steady and smooth in Y-axis equally in the restriction that the translation or the rotation of Y direction can be subjected to described line formula elastic component 67.
In sum, the utility model lens driving apparatus provides fixture, moving member, at least one moves guiding part (for example stationary shaft or slipping plane) and at least one line formula elastic component.This moving member moves guiding part and is arranged on this fixture along this movably.Described line formula elastic component has fixed part and pre-splenium respectively, and wherein this fixed part is connected in this fixture, and this pre-splenium is connected in and this moving member, and this pre-splenium applies the side direction precompression on this moving member.Simultaneously, described line formula elastic component provides axial restoring force (reseting elasticity) in this moving member.Described stationary shaft is fixedly installed on this fixture, and the guiding of moving as this moving member.
The utility model adopts described line formula elastic component, be used to provide the side direction precompression on this moving member, make moving member when mobile, be subjected to the influence of side direction precompression, thereby eliminate with fixture between the gap and closely contact mobile guiding part (stationary shaft) on fixture, and then obtain low rub, do not have free beat, high-precision motion result.Simultaneously, described line formula elastic component is very easy in configuration and assembling, not only can not add the difficulty in the manufacturing, and the elasticity on other arrangement of components also is provided, and helps the development of application product miniaturization.
The above only be the detailed description and the accompanying drawing introduction of the best specific embodiment of the utility model, and feature of the present utility model is not limited thereto.Anyly be familiar with this skill person in the utility model field, can think easily and variation or modify all can be encompassed within the utility model scope of patent protection.Scope of patent protection of the present utility model is as the criterion with defining of appended claims.
Claims (25)
1. the lens driving apparatus with the pre-compression functions of line formula is characterized in that, comprising:
Fixture has air core coil on it;
Mobile guiding part;
Moving member has hollow magnetite group on it, and this moving member can move guiding part along this and moves and be arranged on this fixture; And
At least one line formula elastic component, wherein the two ends of each line formula elastic component are connected to this fixture and this moving member, and described line formula elastic component applies side direction precompression and axial restoring force on this moving member.
2. have the lens driving apparatus of the pre-compression functions of line formula according to claim 1, it is characterized in that: this fixture comprises base and the holder that extends upward from this base.
3. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 2, it is characterized in that: this moves the stationary shaft that guiding part is fixedly installed on this base at least one and is used to connect this fixture and this moving member, the guiding of moving as this moving member.
4. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 3, it is characterized in that: this moving member has at least one sliding eye that cooperates with this stationary shaft, and described sliding eye is parallel elliptical aperture.
5. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 4, it is characterized in that: this elliptical aperture is blind hole or open bore.
6. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 4, it is characterized in that: the shrinkage direction of the long limit of this elliptical aperture and this line formula elastic component is same direction.
7. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 2, it is characterized in that: this moves the slipping plane that guiding part is fixedly installed on this base at least one and is used to connect this fixture and this moving member, the guiding of moving as this moving member.
8. the lens driving apparatus that has the pre-compression functions of line formula according to claim 1, it is characterized in that: this fixture comprises base and the holder that extends upward from this base, this moving member has at least one chute jack, and this holder has at least one enclosed type perforation, described line formula elastic component is non-coincidence line formula elastic component, and the two ends of each line formula elastic component are connected between this chute jack and the perforation of this enclosed type.
9. the lens driving apparatus that has the pre-compression functions of line formula according to claim 1, it is characterized in that: this fixture comprises base and the holder that extends upward from this base, this moving member has at least one chute jack, and this holder has at least one open perforation, described line formula elastic component is non-coincidence line formula elastic component, and the two ends of each line formula elastic component are connected between this chute jack and this open perforation.
10. have the lens driving apparatus of the pre-compression functions of line formula according to claim 1, it is characterized in that: this hollow magnetite group is made up of a hollow magnetite.
11. have the lens driving apparatus of the pre-compression functions of line formula according to claim 1, it is characterized in that: this hollow magnetite group is engaged with a hollow magnetic conductive disk by a hollow magnetite to be formed, and the magnetic line of force that this hollow magnetic conductive disk receives this hollow magnetite to be distributed, and make this magnetic line of force pass through this air core coil, and interact with electromagnetic field that this air core coil conduction back produces, drive this moving member to produce electromagnetic push.
12. have the lens driving apparatus of the pre-compression functions of line formula according to claim 1, it is characterized in that: this hollow magnetite group is by the first hollow magnetite, the second hollow magnetite, and the hollow magnetic conductive disk that is engaged between this first and second hollow magnetite is formed, and this first and second hollow magnetite is relatively to be combined in two opposition sides of this hollow magnetic conductive disk with magnetic pole, wherein this hollow magnetic conductive disk receives the magnetic line of force that this first and second hollow magnetite is distributed, and make this magnetic line of force pass through this air core coil, and interact with electromagnetic field that this air core coil conduction back produces, drive this moving member to produce electromagnetic push.
13. the lens driving apparatus with the pre-compression functions of line formula is characterized in that, comprising:
Fixture has hollow magnetite group on it;
Mobile guiding part;
Moving member has air core coil on it, and this moving member can move guiding part along this and moves and be arranged on this fixture; And
At least one line formula elastic component, wherein the two ends of each line formula elastic component connect this fixture and this moving member respectively, and described line formula elastic component applies side direction precompression and axial restoring force on this moving member.
14. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 13, it is characterized in that: this fixture comprises base and the holder that extends upward from this base.
15. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 14, it is characterized in that: this moves the stationary shaft that guiding part is fixedly installed on this base at least one and is used to connect this fixture and this moving member, the guiding of moving as this moving member.
16. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 15, it is characterized in that: this moving member has at least one sliding eye that cooperates with this stationary shaft, and described sliding eye is parallel elliptical aperture.
17. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 16, it is characterized in that: this elliptical aperture is blind hole or open bore.
18. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 16, it is characterized in that: the shrinkage direction of the long limit of this elliptical aperture and this line formula elastic component is same direction.
19. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 14, it is characterized in that: this moves the slipping plane that guiding part is fixedly installed on this base at least one and is used to connect this fixture and this moving member, the guiding of moving as this moving member.
20. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 13, it is characterized in that: this fixture comprises base and the holder that extends upward from this base, this moving member has at least one chute jack, and this holder has at least one enclosed type perforation, and described line formula elastic component is non-coincidence line formula elastic component, and the two ends of each line formula elastic component are connected between this chute jack and the perforation of this enclosed type.
21. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 13, it is characterized in that: this fixture comprises base and the holder that extends upward from this base, this moving member has at least one chute jack, and this holder has at least one open perforation, described line formula elastic component is non-coincidence line formula elastic component, and the two ends of each line formula elastic component are connected between this chute jack and this open perforation.
22. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 13, it is characterized in that: this line formula elastic component adopts the medium of conductive material as this air core coil power supply.
23. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 13, it is characterized in that: this hollow magnetite group is made up of a hollow magnetite.
24. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 13, it is characterized in that: this hollow magnetite group is engaged with a hollow magnetic conductive disk by a hollow magnetite to be formed, and the magnetic line of force that this hollow magnetic conductive disk receives this hollow magnetite to be distributed, and make this magnetic line of force pass through this air core coil, and interact with electromagnetic field that this air core coil conduction back produces, drive this moving member to produce electromagnetic push.
25. as having the lens driving apparatus of the pre-compression functions of line formula as described in the claim 13, it is characterized in that: this hollow magnetite group is by the first hollow magnetite, the second hollow magnetite, and the hollow magnetic conductive disk that is bonded between this first and second hollow magnetite is formed, and this first and second hollow magnetite is relatively to be combined in two opposition sides of this hollow magnetic conductive disk with magnetic pole, wherein this hollow magnetic conductive disk receives the magnetic line of force that this first and second hollow magnetite is distributed, and make this magnetic line of force pass through this air core coil, and interact with electromagnetic field that this air core coil conduction back produces, drive this moving member to produce electromagnetic push.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201525233U CN201060303Y (en) | 2007-06-13 | 2007-06-13 | Lens drive apparatus with lines type preload function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201525233U CN201060303Y (en) | 2007-06-13 | 2007-06-13 | Lens drive apparatus with lines type preload function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060303Y true CN201060303Y (en) | 2008-05-14 |
Family
ID=39408785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201525233U Expired - Lifetime CN201060303Y (en) | 2007-06-13 | 2007-06-13 | Lens drive apparatus with lines type preload function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060303Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331614A (en) * | 2010-07-07 | 2012-01-25 | 思考电机（上海）有限公司 | Lens drive device, automatic focus camera and mobile terminal device |
| TWI412215B (en) * | 2008-06-13 | 2013-10-11 | Hon Hai Prec Ind Co Ltd | Voice-coil motor and lens module using same |
| CN103376528A (en) * | 2012-04-30 | 2013-10-30 | 华宏新技股份有限公司 | Camera system |
| CN108508566A (en) * | 2018-03-27 | 2018-09-07 | 瑞声科技(新加坡)有限公司 | Lens driving apparatus |
-
2007
- 2007-06-13 CN CNU2007201525233U patent/CN201060303Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI412215B (en) * | 2008-06-13 | 2013-10-11 | Hon Hai Prec Ind Co Ltd | Voice-coil motor and lens module using same |
| CN102331614A (en) * | 2010-07-07 | 2012-01-25 | 思考电机（上海）有限公司 | Lens drive device, automatic focus camera and mobile terminal device |
| CN103376528A (en) * | 2012-04-30 | 2013-10-30 | 华宏新技股份有限公司 | Camera system |
| CN103376528B (en) * | 2012-04-30 | 2015-08-05 | 华宏新技股份有限公司 | Camera system |
| TWI510078B (en) * | 2012-04-30 | 2015-11-21 | Wah Hong Ind Corp | Camera system |
| CN108508566A (en) * | 2018-03-27 | 2018-09-07 | 瑞声科技(新加坡)有限公司 | Lens driving apparatus |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080514 |