CN203350575U - Voice coil motor for controlling movement of lens - Google Patents
Voice coil motor for controlling movement of lens Download PDFInfo
- Publication number
- CN203350575U CN203350575U CN 201320404322 CN201320404322U CN203350575U CN 203350575 U CN203350575 U CN 203350575U CN 201320404322 CN201320404322 CN 201320404322 CN 201320404322 U CN201320404322 U CN 201320404322U CN 203350575 U CN203350575 U CN 203350575U
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- Prior art keywords
- magnetite
- lens mount
- lens
- focusing
- coil
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- Expired - Lifetime
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Abstract
The utility model discloses a voice coil motor for controlling the movement of a lens. The voice coil motor includes a lens seat provided with a lens, a focusing coil, two deflection coils and a plurality of magnets, wherein the focusing coil is fixedly sleeved at the outer side of the lens seat, the two deflection coils are fixed at two adjacent side surfaces of the lens seat, and the three coils are pairwise orthogonal. The magnets are fixed at the peripheries of the focusing coil and the defection coils, so that the interaction between the focusing coil and the magnets drives the lens seat to move back and forth so as to achieve the focusing of the lens. The interaction between the deflection coils and the magnets drives the lens seat to do tilting motion so as to achieve tilt-shift of the lens. According to the voice coil motor, the three pairwise orthogonal coils are cooperated with the plurality of magnets arranged at the peripheries of the coils, so that the focusing of the lens and the controllable inclination of the lens are achieved. In addition, the voice coil motor is small in size and easy to match a driving circuit.
Description
Technical field
the utility model relates to the control gear of optical lens in smart mobile phone, relates in particular to a kind of voice coil motor of controlling camera motion.
Background technology
although smart mobile phone is day by day universal, the high-pixel camera head also more and more approaches digital camera, but main cause or the smart mobile phone of failing so far to reach the real effect of digital camera lack the due optics of digital camera and mechanical part, and just there is marked difference naturally in shooting effect.The understanding that realizes optics anti-shake (OIS) and move axle photography complex technology by the digital camera to senior, the mechanical hook-up of a complexity of needs is controlled the various dimensions motion of camera lens, thereby simulate and approach the shooting effect of digital camera, the camera function of smart mobile phone is got a promotion.
although in recent years many well-known manufacturers to smart mobile phone, the R&D work to three axle focusing motor never stops, but, because the structure of these motors is very complicated, volume and power consumption are larger, also fail to promote and come on smart mobile phone market.This wherein mainly represents and TDK is arranged, Mistumi, Foxconn etc.
at present, take and like that pendant instrument photoelectricity technology corporation, Ltd. has developed a focusing motor that can make camera lens produce controlled inclination as representative in market, realized that automatic focusing adds the anti-shake function of optics, and the miniaturization that has realized device breaks through, make the volume of three axle motors accomplish for the first time with traditional single shaft motor equally little, power consumption has also obtained good control, is really that road has been paved in three application of axle motor in mobile phone.
this motors designs of loving the pendant instrument utilized be distributed in the camera lens periphery several (being more than or equal to 3) identical actuator respectively the independent pushing camera lens move being roughly parallel on the direction of optical axis, realize focusing and the controlled inclination of camera lens by the amount of movement of controlling each actuator.And the inclination of camera lens can produce the equivalent translation of camera lens, thereby can realize the shooting effect that optics is anti-shake in conjunction with the gyroscope sensing control.Yet it is relatively large that this motor has the volume production difficulty, be difficult for and the shortcomings such as motor drive circuit is complementary.
The utility model content
for above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of motor mechanism of controlling camera motion, can realize focusing and controlled inclination to camera lens, and this mechanism's volume little, be easy to be complementary with driving circuit.
for achieving the above object, the utility model adopts following technical scheme:
a kind of voice coil motor of controlling camera motion, comprise the lens mount that camera lens is housed, a pair of focal line circle, two deflection coils and some magnetites, camera lens is coaxial and be parallel to optical axis with lens mount, it is characterized in that: described focusing coil fixed cover is loaded on the lens mount outside, described two deflection coils are fixed in the side that lens mount two is adjacent, two plane, deflection coil places are mutually vertical, and simultaneously perpendicular to focusing plane, coil place; Described magnetite is fixed in around focusing coil and deflection coil, and when the focusing coil electricity, described magnetite produces the acting force of a parallel optical axis to lens mount, lens mount is moved forward and backward; When deflection coil is switched on, described magnetite produces a deflecting torque to lens mount, makes lens mount move axle deflection.
the number of described magnetite is four, and four magnetites are respectively the first magnetite, the second magnetite, the 3rd magnetite and the 4th magnetite, and the polarity of the part inboard of four corresponding described focusing coils of magnetite is identical; The corresponding described deflection coil of the second magnetite and the 3rd magnetite, the second magnetite and the 3rd magnetite arrange on optical axis direction on the contrary at the magnetic pole of the part inboard of corresponding deflection coil.
two magnetites of described corresponding deflection coil adopt the plane two-stage to annotate magnetic technique and realize two magnetic pole polarised directions that the same side is contrary on the same magnetites, or with two contrary magnetites of magnetic pole polarised direction, are spliced respectively.
described lens mount outside mask is equipped with for shielding the metal yoke of inner and outer magnetic field, and magnetite is fixedly mounted on metal yoke inside.
described lens mount upper end is provided with the top spring leaf, and the lens mount lower end is provided with the bottom spring sheet, and lens mount is suspended in the metal yoke by top spring leaf and bottom spring sheet.
as mentioned above, the utility model is with the installation of the some magnetites around coil by three mutually orthogonal coils, can realize focusing and controlled inclination to camera lens, and this mechanism's volume little, be easy to be complementary with driving circuit.
The accompanying drawing explanation
fig. 1 is a kind of three-dimensional exploded view of controlling the voice coil motor of camera motion of the utility model;
fig. 2 is a kind of cut-open view (having omitted the part assembly) of controlling the voice coil motor A-A direction of camera motion of the utility model;
fig. 3 is a kind of cut-open view (having omitted the part assembly) of controlling the voice coil motor B-B direction of camera motion of the utility model.
Embodiment
below, by reference to the accompanying drawings and embodiment, the utility model is described further:
refer to Fig. 1, Fig. 2 and Fig. 3, the utility model provides a kind of voice coil motor of controlling camera motion, comprise the lens mount 10 that camera lens is housed, a pair of focal line circle 20, two deflection coil 31,32 and some magnetites, described focusing coil 20 fixed covers are loaded on lens mount 10 outsides, described two deflection coils 31,32 are fixed in 10 liang of adjacent sides of lens mount, two deflection coil 31,32 planes, place are mutually vertical, and simultaneously perpendicular to focusing coil 20 planes, place; Described magnetite is fixed in around focusing coil 20 and deflection coil 31,32, and when 20 energising of focusing coil, described magnetite produces the acting force of a parallel optical axis to lens mount 10, lens mount 10 is moved forward and backward; When deflection coil 31,32 energising, described magnetite produces a deflecting torque to lens mount 10, makes lens mount 10 move axle deflection.
particularly, described lens mount 10 outside mask are equipped with for shielding the metal yoke 50 of inner and outer magnetic field, and this metal yoke 50 has rectangular housing; Lens mount 10 upper ends are provided with top spring leaf 11, this top spring leaf 11 is attached at lens mount 10 upper end-face edges, lens mount 10 lower ends are provided with bottom spring sheet 12, this bottom spring sheet 12 is attached at lens mount 10 lower edge, lens mount 10 is suspended in metal yoke 50 by top spring leaf 11 and bottom spring sheet 12, thereby this lens mount 10 can move forward and backward along optical axis direction in metal yoke 50, that simultaneously can make minute angle around lens mount 10 central points moves axle deflection.
preferably, described metal yoke 50 inside also are equiped with top frame (not shown) and bottom framework 51, be individually fixed in top and the bottom of metal yoke 50, top frame and bottom framework 51 all have the rectangle framework, framework four angle the same sides convex with column 511, described top frame and bottom framework 52 are oppositely arranged, the column 511 be located thereon is the face-off shape, the edge of described top spring leaf 11 and bottom spring sheet 12 is fixed on the end face of these columns 511, thereby lens mount 10 and three coils being fixed on lens mount 10 are hung in metal yoke 50.
described magnetite is fixedly mounted on metal yoke 50 inside, particularly, the number of described magnetite is made as four, four magnetites are respectively the first magnetite 41, the second magnetite 42, the 3rd magnetite 43, reach the 4th magnetite 44, be individually fixed in metal yoke 50 four sides, and be distributed in around three coils, the polarity of the part inboard of four magnetite 41,42,43,44 corresponding described focusing coils 20 is identical, all is made as the S utmost point; The corresponding described deflection coil 31,32 of the second magnetite 42 and the 3rd magnetite 43, the magnetic pole of corresponding part inboard arranges on the contrary on optical axis direction, corresponding deflection coil 31 first halves of the second magnetite 42, inboard magnetic pole are made as the N utmost point, and corresponding deflection coil 31 Lower Halves, inboard magnetic pole are made as the S utmost point; Corresponding deflection coil 32 first halves of the 3rd magnetite 43, inboard magnetic pole are made as the N utmost point, and corresponding deflection coil 32 Lower Halves, inboard magnetic pole are made as the S utmost point.
when the energising of focusing coil 20, under the magnetic fields of four magnetites 41,42,43,44, can produce an axial acting force of directional light to lens mount 10, move forward and backward along optical axis thereby can promote lens mount 10, thereby realize the focusing of camera lens; When deflection coil 31,32 energising, produce and be parallel to the power of optical axis and act on a side of lens mount 10 under the magnetic fields of the second magnetite 42, the 3rd magnetite 43, form moment, make lens mount 10 produce banking motions, thus realize camera lens move axle deflection; Two deflection coils 31,32 are independently controlled respectively camera lens and produce banking motion on the directions of two quadratures, thereby three coils control lens mounts can move at three degree of freedom.
the ground of being worth mentioning, the second magnetite 42 of described corresponding deflection coil 31,32 and the 3rd magnetite 43 adopt the plane two-stage to annotate magnetic technique and realize two magnetic pole polarised directions that the same side is contrary on the same magnetites, or with two contrary magnetites of magnetic pole polarised direction, are spliced respectively.
as mentioned above, the utility model is with the installation of the some magnetites around coil by three mutually orthogonal coils, can realize focusing and controlled inclination to camera lens, and this mechanism's volume little, be easy to be complementary with driving circuit.
to one skilled in the art, can make other various corresponding changes and deformation according to technical scheme described above and design, and within these all changes and deformation all should belong to the protection domain of the utility model claim.
Claims (5)
1. a voice coil motor of controlling camera motion, comprise the lens mount that camera lens is housed, a pair of focal line circle, two deflection coils and some magnetites, camera lens is coaxial and be parallel to optical axis with lens mount, it is characterized in that: described focusing coil fixed cover is loaded on the lens mount outside, described two deflection coils are fixed in the side that lens mount two is adjacent, two plane, deflection coil places are mutually vertical, and simultaneously perpendicular to focusing plane, coil place; Described magnetite is fixed in around focusing coil and deflection coil, and when the focusing coil electricity, described magnetite produces the acting force of a parallel optical axis to lens mount, lens mount is moved forward and backward; When deflection coil is switched on, described magnetite produces a deflecting torque to lens mount, makes lens mount move axle deflection.
2. a kind of voice coil motor of controlling camera motion as claimed in claim 1, it is characterized in that: the number of described magnetite is four, four magnetites are respectively the first magnetite, the second magnetite, the 3rd magnetite and the 4th magnetite, and the polarity of the part inboard of four corresponding described focusing coils of magnetite is identical; The corresponding described deflection coil of the second magnetite and the 3rd magnetite, the second magnetite and the 3rd magnetite arrange on optical axis direction on the contrary at the magnetic pole of the part inboard of corresponding deflection coil.
3. a kind of voice coil motor of controlling camera motion as claimed in claim 2, it is characterized in that: two magnetites of described corresponding deflection coil adopt the plane two-stage to annotate magnetic technique and realize two magnetic pole polarised directions that the same side is contrary on the same magnetites, or with two contrary magnetites of magnetic pole polarised direction, are spliced respectively.
4. a kind of voice coil motor of controlling camera motion as claimed in claim 1 or 2, it is characterized in that: described lens mount outside mask is equipped with for shielding the metal yoke of inner and outer magnetic field, and magnetite is fixedly mounted on metal yoke inside.
5. a kind of voice coil motor of controlling camera motion as claimed in claim 4, it is characterized in that: described lens mount upper end is provided with the top spring leaf, and the lens mount lower end is provided with the bottom spring sheet, and lens mount is suspended in the metal yoke by top spring leaf and bottom spring sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320404322 CN203350575U (en) | 2013-07-08 | 2013-07-08 | Voice coil motor for controlling movement of lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320404322 CN203350575U (en) | 2013-07-08 | 2013-07-08 | Voice coil motor for controlling movement of lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203350575U true CN203350575U (en) | 2013-12-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320404322 Expired - Lifetime CN203350575U (en) | 2013-07-08 | 2013-07-08 | Voice coil motor for controlling movement of lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203350575U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015043459A1 (en) * | 2013-09-27 | 2015-04-02 | Kwok Sing Cheng | Lens driving apparatus |
| WO2015176590A1 (en) * | 2014-05-20 | 2015-11-26 | 深圳市世尊科技有限公司 | Three-axis voice coil motor for controlling motion of lens |
| CN107462964A (en) * | 2016-06-06 | 2017-12-12 | 新科实业有限公司 | The assemble method of SMA components and OIS devices |
| CN110692232A (en) * | 2017-06-02 | 2020-01-14 | 宁波舜宇光电信息有限公司 | Drive assembly, camera module and electronic equipment thereof |
| WO2022000555A1 (en) * | 2020-06-30 | 2022-01-06 | 诚瑞光学(常州)股份有限公司 | Lens driving apparatus |
| WO2022000553A1 (en) * | 2020-06-30 | 2022-01-06 | 诚瑞光学(常州)股份有限公司 | Lens driving apparatus |
-
2013
- 2013-07-08 CN CN 201320404322 patent/CN203350575U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015043459A1 (en) * | 2013-09-27 | 2015-04-02 | Kwok Sing Cheng | Lens driving apparatus |
| WO2015176590A1 (en) * | 2014-05-20 | 2015-11-26 | 深圳市世尊科技有限公司 | Three-axis voice coil motor for controlling motion of lens |
| CN107462964A (en) * | 2016-06-06 | 2017-12-12 | 新科实业有限公司 | The assemble method of SMA components and OIS devices |
| CN110692232A (en) * | 2017-06-02 | 2020-01-14 | 宁波舜宇光电信息有限公司 | Drive assembly, camera module and electronic equipment thereof |
| WO2022000555A1 (en) * | 2020-06-30 | 2022-01-06 | 诚瑞光学(常州)股份有限公司 | Lens driving apparatus |
| WO2022000553A1 (en) * | 2020-06-30 | 2022-01-06 | 诚瑞光学(常州)股份有限公司 | Lens driving apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN SHIZUN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LI WEI Effective date: 20140619 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 529149 JIANGMEN, GUANGDONG PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140619 Address after: Dragon Street Longgang Huangge Road District of Shenzhen City, Guangdong province 518000 No. 441 Longgang Tian An Digital Innovation Park Building 1 B1403-2 Patentee after: SHENZHEN STR TECHNO Ltd. Address before: 529149 Guangdong Province, Jiangmen City Xinhui District Yanan West Park Village No. 2 Patentee before: Li Wei |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
|
| CX01 | Expiry of patent term |