CN202956525U - Lens driving device - Google Patents
Lens driving device Download PDFInfo
- Publication number
- CN202956525U CN202956525U CN 201220580361 CN201220580361U CN202956525U CN 202956525 U CN202956525 U CN 202956525U CN 201220580361 CN201220580361 CN 201220580361 CN 201220580361 U CN201220580361 U CN 201220580361U CN 202956525 U CN202956525 U CN 202956525U
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- CN
- China
- Prior art keywords
- lens barrel
- spring leaf
- driving apparatus
- lens driving
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a lens driving device, comprising a lens barrel, a driving unit, a first spring leaf, a second spring leaf, a first support and a second support. The first spring leaf comprises a holding portion in holding connection with the lens barrel, multiple elastic portions and a root portion, wherein one end of each elastic portion is connected with the holding portion, and the other end of the same is connected with the root portion; the root portion is held by the first support; and the first spring leaf also comprises multiple piezoelectric ceramic plates attached to the root portion, and self deformation and displacement of the piezoelectric ceramic plates are carried out on the root portion so that the first spring leaf drives the lens barrel to move in the direction vertical to the optical axis of the lens barrel. According to utility model, it is solved the problems that anti-shaking function realized by electromagnetic principles makes structure and design complex and is not helpful for production.
Description
[technical field]
The utility model relates to the drive unit field, specifically a kind of lens driving apparatus.
[background technology]
The lens driving apparatus used on common electronic digital product has automatic focusing and anti-shake function.Yet the anti-trembling function of the lens driving apparatus of correlation technique is all the electromagnetic principle utilized to be realized.That is to say and need the extra magnet steel of being furnished with the anti-trembling function of realizing and coil in the lens driving apparatus of correlation technique, caused the quantity of the inner magnet steel of described lens driving apparatus and coil more, cause the lens driving apparatus complex structural designs, also to production run, caused many difficulties and inconvenience simultaneously.
Therefore, be necessary to provide a kind of novel lens driving apparatus to solve above-mentioned deficiency in fact.
[utility model content]
The utility model is for solving the lens driving apparatus complex structural designs of correlation technique, is unfavorable for the problem of producing and a kind of novel lens driving apparatus is provided.
The purpose of this utility model is achieved in that
A kind of lens driving apparatus, it comprises lens barrel, driver element, the first spring leaf, the second spring leaf, the first support and the second support, described the first support and the second support assorted are accommodated described lens barrel, driver element, the first spring leaf and the second spring leaf, the described lens barrel of described drive unit drives moves along its optical axis direction, described the first spring leaf and the second spring leaf are arranged on respectively the above and below of described lens barrel along the optical axis direction of described lens barrel, described the first spring leaf comprises the holding parts be connected with described lens barrel fixing, some elastic that one end is connected with described holding parts and the root footpath section be connected with the described elastic other end, described footpath section is immobilizated in described the first support, described the first spring leaf also comprises and is attached at described piezoelectric ceramic piece in the section of footpath, thereby the deformational displacement of described piezoelectric ceramic piece self acts on described footpath section and can move along the direction perpendicular to its optical axis so that described the first spring leaf drives described lens barrel.
Preferably, described the first spring leaf is centrosymmetric structure.
Preferably, described footpath section comprise with the first fixing end of described elastic phase fixing, with the second fixing end and the linking arm that is connected described the first fixing end and the second fixing end of the first support phase fixing, described piezoelectric ceramic piece is attached on described linking arm.
Preferably, described the first support is provided with inlay card section, and described the second fixing end inlay card is in described inlay card section.
Preferably, the both sides of described linking arm all are pasted with piezoelectric ceramic piece.
Preferably, described driver element comprise the coil that is immobilizated on described lens barrel, the fixing yoke and be attached at described yoke inwall and in the face of the magnet steel of described coil with respect to the lower carriage position.
Preferably, the first side wall that described yoke is provided with diapire and vertically extends from described diapire, described lens barrel is provided with the receiving space of accommodating camera lens and surrounds the second sidewall of described receiving space, described lens barrel is extended with boss from the bottom of its second sidewall periphery to the first side wall, described coil is set on lens barrel and an end is fixed on described boss, and described magnet steel is attached at the inner surface of described the first side wall.
Preferably, described lens barrel is extended with the teat of the described lens barrel displacement of restriction to the first side wall from its second sidewall, described boss with respect to teat more away from the second sidewall, the diapire of described teat and yoke at intervals and described teat along on the diapire of orthogonal projection at least partially in yoke perpendicular to the direction of diapire, the other end height of described coil is not higher than described teat, and described coil further is immobilizated in the outer surface of described teat.
Preferably, described lens driving apparatus also comprises an insulating mat, and described insulating mat is between described yoke and the second spring leaf.
The utility model has the advantage of: the first spring leaf of lens driving apparatus of the present utility model is pasted with piezoelectric ceramic piece in its root footpath section, thereby the deformational displacement of described piezoelectric ceramic piece self acts on described footpath section and can move along the direction perpendicular to its optical axis so that described the first spring leaf drives described lens barrel, when shake occurs in lens barrel, as long as feed, voltage of described piezoelectric ceramic piece makes himself to produce a deformational displacement contrary with the lens barrel jitter direction, can be so that described the first spring leaf band moving lens barrel moves thereby the deformational displacement of piezoelectric ceramic piece self will act on described footpath section, thereby play the anti-shake function of optics.Utilize the inverse piezoelectric effect of piezoelectric ceramic piece to realize anti-trembling function, saved the magnet steel of realizing anti-trembling function and the coil be furnished with in the correlation technique lens driving apparatus, thereby make whole structural design simple, be beneficial to production.
[accompanying drawing explanation]
The stereographic map of a kind of lens driving apparatus that Fig. 1 provides for the utility model;
The three-dimensional exploded view of a kind of lens driving apparatus that Fig. 2 is Fig. 1;
The schematic diagram of the upper spring sheet of a kind of lens driving apparatus that Fig. 3 is Fig. 1;
The schematic diagram of the first support of a kind of lens driving apparatus that Fig. 4 is Fig. 1.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is elaborated.
As shown in Figures 1 to 4, a kind of lens driving apparatus 100 provided for the utility model, it comprises lens barrel 21, driver element 40, the first spring leaf 31, the second spring leaf 61, the first support 11 and the second support 12, described the first support 11 and the second support 12 coordinate accommodates described lens barrel 21, driver element 40, the first spring leaf 31 and the second spring leaf 61, described driver element 40 drives described lens barrel 21 to move along its optical axis direction, described the first spring leaf 31 and the second spring leaf 61 are arranged on respectively the above and below of described lens barrel 21 along the optical axis direction of described lens barrel 21, described the first spring leaf 31 comprises the annular holding parts 311 be connected with described lens barrel 21 fixings, some elastic 312 that one end is connected with described holding parts 311 and the root footpath section 313 be connected with described elastic 312 other ends, described footpath section 313 is immobilizated in described the first support 11, described the first spring leaf 31 also comprises and is attached at described piezoelectric ceramic piece 314 in footpath section 313, thereby the deformational displacement of described piezoelectric ceramic piece 314 self acts on described footpath section 313 and can move along the direction perpendicular to its optical axis so that described the first spring leaf 31 drives described lens barrel 21, complete the focus adjustment of lens barrel 21 in working order the time.
Described footpath section 313 comprise with the first fixing end 3131 of described elastic 312 phase fixings, with the second fixing end 3133 and the linking arm 3132 that is connected described the first fixing end 3131 and the second fixing end 3133 of the first support 11 phase fixings, described piezoelectric ceramic piece 314 is attached on described linking arm 3132, and the both sides of described connecting wall 3132 all are pasted with piezoelectric ceramic piece 314.Described the first support 11 is provided with inlay card section 111, and the second fixing end 3133 inlay cards of described footpath section 313 are in described inlay card section 111.The one-piece construction of described the first spring leaf 31 is centrosymmetric structures.
When shake occurs in lens barrel 21, namely lens barrel 21 is being moved perpendicular to its optical axis direction, lens barrel 21 will drive the first spring leaf 31 and occur corresponding mobile owing to being connected with the first spring leaf 31 fixings, as long as now feed, 314 1 voltages of described piezoelectric ceramic piece make himself to produce a deformational displacement contrary with the jitter direction of lens barrel 21, can be so that described the first spring leaf 31 band moving lens barrels 21 move thereby the deformational displacement of piezoelectric ceramic piece 314 self will act on described footpath section 313, thus play the anti-shake function of optics.
In the present embodiment, described driver element 40 comprise the coil 42 that is immobilizated on described lens barrel 21, the fixing yoke 41 and be attached at described yoke 41 inwalls and in the face of the magnet steel 43 of described coil 42 with respect to lower carriage 12 positions.The first side wall 412 that described yoke 41 is provided with diapire 411 and vertically extends from described diapire 411, described lens barrel 21 is provided with the receiving space 210 of accommodating camera lens and the second sidewall 211 that surrounds described receiving space 210, described lens barrel 21 is extended with boss 212 from the bottom of its second sidewall 211 periphery to the first side wall 412, described coil 42 is set on lens barrel 21 and an end is fixed on described boss 212, and described magnet steel 43 is attached at the inner surface of described the first side wall 412.Described lens barrel 21 is extended with the teat 213 of described lens barrel 21 displacements of restriction to the first side wall 412 from its second sidewall 211, described boss 212 with respect to teat 213 more away from the second sidewall 211, the diapire 411 of described teat 213 and yoke 41 at intervals and described teat 213 along on the diapires 411 of orthogonal projection at least partially in yoke 41 of the direction perpendicular to diapire 411, the other end height of described coil 42 is not higher than described teat 213, and described coil 42 further is immobilizated in the outer surface 2131 of described teat 213.Preferably, described lens driving apparatus 100 also comprises an insulating mat 51, and described insulating mat 51 is between described yoke 41 and the second spring leaf 61.
A kind of lens driving apparatus 100 that the utility model provides is pasted with piezoelectric ceramic piece 314 in the root footpath of its first spring leaf 31 one 313, thereby the deformational displacement of described piezoelectric ceramic piece 314 self acts on described footpath section 313 and can move along the direction perpendicular to its optical axis so that described the first spring leaf 31 drives described lens barrel 21, when shake occurs in lens barrel 21, as long as feed, 314 1 voltages of described piezoelectric ceramic piece make himself to produce a deformational displacement contrary with the jitter direction of lens barrel 21, can be so that described the first spring leaf 31 band moving lens barrels 21 move thereby the deformational displacement of piezoelectric ceramic piece 314 self will act on described footpath section 313, thereby play the anti-shake function of optics.Utilize the inverse piezoelectric effect of piezoelectric ceramic piece to realize anti-trembling function, saved the magnet steel of realizing anti-trembling function and the coil be furnished with in the correlation technique lens driving apparatus, thereby make whole structural design simple, be beneficial to production.
The foregoing is only better embodiment of the present utility model; protection domain of the present utility model is not limited with above-mentioned embodiment; in every case the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or is changed, and all should include in the protection domain of putting down in writing in claims.
Claims (9)
1. a lens driving apparatus, it comprises lens barrel, driver element, the first spring leaf, the second spring leaf, the first support and the second support, described the first support and the second support assorted are accommodated described lens barrel, driver element, the first spring leaf and the second spring leaf, the described lens barrel of described drive unit drives moves along its optical axis direction, it is characterized in that: described the first spring leaf and the second spring leaf are arranged on respectively the above and below of described lens barrel along the optical axis direction of described lens barrel, described the first spring leaf comprises the holding parts be connected with described lens barrel fixing, some elastic that one end is connected with described holding parts and the root footpath section be connected with the described elastic other end, described footpath section is immobilizated in described the first support, described the first spring leaf also comprises and is attached at described piezoelectric ceramic piece in the section of footpath, thereby the deformational displacement of described piezoelectric ceramic piece self acts on described footpath section and can move along the direction perpendicular to its optical axis so that described the first spring leaf drives described lens barrel.
2. lens driving apparatus according to claim 1, it is characterized in that: described the first spring leaf is centrosymmetric structure.
3. lens driving apparatus according to claim 2, it is characterized in that: described footpath section comprise with the first fixing end of described elastic phase fixing, with the second fixing end and the linking arm that is connected described the first fixing end and the second fixing end of the first support phase fixing, described piezoelectric ceramic piece is attached on described linking arm.
4. lens driving apparatus according to claim 3, it is characterized in that: described the first support is provided with inlay card section, and described the second fixing end inlay card is in described inlay card section.
5. lens driving apparatus according to claim 3, it is characterized in that: the both sides of described linking arm all are pasted with piezoelectric ceramic piece.
6. lens driving apparatus according to claim 1 is characterized in that: described driver element comprises the coil that is immobilizated on described lens barrel, the fixing yoke and be attached at described yoke inwall and in the face of the magnet steel of described coil with respect to the lower carriage position.
7. lens driving apparatus according to claim 6, it is characterized in that: the first side wall that described yoke is provided with diapire and vertically extends from described diapire, described lens barrel is provided with the receiving space of accommodating camera lens and surrounds the second sidewall of described receiving space, described lens barrel is extended with boss from the bottom of its second sidewall periphery to the first side wall, described coil is set on lens barrel and an end is fixed on described boss, and described magnet steel is attached at the inner surface of described the first side wall.
8. lens driving apparatus according to claim 7, it is characterized in that: described lens barrel is extended with the teat of the described lens barrel displacement of restriction to the first side wall from its second sidewall, described boss with respect to teat more away from the second sidewall, the diapire of described teat and yoke at intervals and described teat along on the diapire of orthogonal projection at least partially in yoke perpendicular to the direction of diapire, the other end height of described coil is not higher than described teat, and described coil further is immobilizated in the outer surface of described teat.
9. lens driving apparatus according to claim 8, it is characterized in that: described lens driving apparatus also comprises an insulating mat, described insulating mat is between described yoke and the second spring leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220580361 CN202956525U (en) | 2012-11-06 | 2012-11-06 | Lens driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220580361 CN202956525U (en) | 2012-11-06 | 2012-11-06 | Lens driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202956525U true CN202956525U (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220580361 Expired - Fee Related CN202956525U (en) | 2012-11-06 | 2012-11-06 | Lens driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202956525U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104199167A (en) * | 2013-08-02 | 2014-12-10 | 惠州市大亚湾永昶电子工业有限公司 | Lens driving device |
| CN106291856A (en) * | 2015-06-23 | 2017-01-04 | 三星电机株式会社 | Camera lens module and include the camera model of this camera lens module |
| CN107683429A (en) * | 2015-06-11 | 2018-02-09 | 三美电机株式会社 | Lens driver, camara module and camera carrying device |
| CN111596432A (en) * | 2020-06-22 | 2020-08-28 | 睿恩光电有限责任公司 | Piezoelectric optical anti-shake device, camera device, and electronic apparatus |
| CN112351178A (en) * | 2020-11-06 | 2021-02-09 | 广州立景创新科技有限公司 | Image pickup apparatus and method for adjusting the same |
-
2012
- 2012-11-06 CN CN 201220580361 patent/CN202956525U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104199167A (en) * | 2013-08-02 | 2014-12-10 | 惠州市大亚湾永昶电子工业有限公司 | Lens driving device |
| JP2015031815A (en) * | 2013-08-02 | 2015-02-16 | 惠州市大亜湾永昶電子工業有限公司 | Lens driving device |
| CN107683429A (en) * | 2015-06-11 | 2018-02-09 | 三美电机株式会社 | Lens driver, camara module and camera carrying device |
| CN106291856A (en) * | 2015-06-23 | 2017-01-04 | 三星电机株式会社 | Camera lens module and include the camera model of this camera lens module |
| CN111596432A (en) * | 2020-06-22 | 2020-08-28 | 睿恩光电有限责任公司 | Piezoelectric optical anti-shake device, camera device, and electronic apparatus |
| CN111596432B (en) * | 2020-06-22 | 2021-07-06 | 睿恩光电有限责任公司 | Piezoelectric optical anti-shake device, camera device, and electronic apparatus |
| CN112351178A (en) * | 2020-11-06 | 2021-02-09 | 广州立景创新科技有限公司 | Image pickup apparatus and method for adjusting the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000, No. 133, Xin Lu, Suzhou Industrial Park, Suzhou, Jiangsu Co-patentee after: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co.,Ltd. Patentee after: Ruisheng Optoelectronic Technology (Suzhou) Co.,Ltd. Co-patentee after: AAC Acoustic Technologies (Changzhou) Co.,Ltd. Address before: 215000, No. 133, Xin Lu, Suzhou Industrial Park, Suzhou, Jiangsu Co-patentee before: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co.,Ltd. Patentee before: AAC Acoustic Technologies (Suzhou) Co.,Ltd. Co-patentee before: AAC Acoustic Technologies (Changzhou) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200131 Address after: 215000, No. 133, Xin Lu, Suzhou Industrial Park, Suzhou, Jiangsu Patentee after: Ruisheng Optoelectronic Technology (Suzhou) Co.,Ltd. Address before: 215000, No. 133, Xin Lu, Suzhou Industrial Park, Suzhou, Jiangsu Co-patentee before: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co.,Ltd. Patentee before: Ruisheng Optoelectronic Technology (Suzhou) Co.,Ltd. Co-patentee before: AAC Acoustic Technologies (Changzhou) Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000, No. 133, Xin Lu, Suzhou Industrial Park, Suzhou, Jiangsu Patentee after: Chengrui optics (Suzhou) Co.,Ltd. Address before: 215000, No. 133, Xin Lu, Suzhou Industrial Park, Suzhou, Jiangsu Patentee before: Ruisheng Optoelectronic Technology (Suzhou) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20211106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |