CN103138522A - Voice coil motor and camera module with same - Google Patents
Voice coil motor and camera module with same Download PDFInfo
- Publication number
- CN103138522A CN103138522A CN2011103759570A CN201110375957A CN103138522A CN 103138522 A CN103138522 A CN 103138522A CN 2011103759570 A CN2011103759570 A CN 2011103759570A CN 201110375957 A CN201110375957 A CN 201110375957A CN 103138522 A CN103138522 A CN 103138522A
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- base plate
- voice coil
- coil motor
- containing cavity
- lens module
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Abstract
The invention provides a voice coil motor which comprises a housing, a fixed assembly, a movable assembly and a bearing base. The movable assembly is accommodated in a first accommodating chamber and provided with a loading cylinder and coils. The loading cylinder is provided with a second accommodating chamber for accommodating a lens module. The fixed assembly is arranged on the bearing base. The housing is provided with a base plate and a plurality of side plates. The base plate is arranged between an image sensor and the lens module and includes a bearing surface, and the plurality of side plates are respectively arranged on the bearing surface of the base plate. The base plate is provided with a first opening which is arranged coaxially to the fixed assembly and the movable assembly. The diameter of the first opening is smaller than that of an opening of the second accommodating chamber and larger or equal to the inner diameter of the lens module. The voice coil motor further comprises an anti-dust device which is arranged on the bearing surface of the base plate, and the anti-dust device is arranged on the bearing base. The invention also relates to a camera module with the voice coil motor.
Description
Technical field
The present invention relates to a kind of voice coil motor and use the camera module of this voice coil motor.
Background technology
Voice coil motor has that volume is little, power consumption reaches the advantages such as cheap less, is suitable in the camera module, to carry out zoom or focusing.Common voice coil motor mainly comprises fixed mount, is installed in fitted tube and at least one shell fragment in described fixed mount actively.Traditional camera module first is fixed on voice coil motor on image sensor when assembling, then lens barrel is assembled in fitted tube.Because, lens barrel and fitted tube are that mode by screw thread coordinates, and be generally both to be made by plastic material, therefore, friction in assembling process between screw thread easily produces dust and particle, in case dust and particle drop on image sensor, will affect the image quality of camera module.
Summary of the invention
In view of this, be necessary to provide a kind of and prevent that dust and particle from dropping down onto the voice coil motor on image sensor and using the camera module of this voice coil motor.
A kind of voice coil motor, it comprises a housing, a fixation kit, a movable component and a load bearing seat.Described housing is used for accommodating described fixation kit, described movable component and described load bearing seat.Described fixation kit has one first containing cavity.Described movable component is contained in described the first containing cavity.Described movable component has a fitted tube and is around in the coil of described fitted tube outer wall.Described fitted tube has one second containing cavity.Described the second containing cavity is used for accommodating a camera lens module.Described fixation kit is supported on described load bearing seat.Described housing has a base plate, reaches a plurality of side plates.Described base plate is used for being arranged between an image sensor and described camera lens module.Described base plate comprises a loading end, and described a plurality of side plates are arranged at respectively on the loading end of described base plate.Described base plate have one with equal the first opening of coaxial setting of described fixation kit and described movable component.The diameter of described the first opening is less than the opening diameter of described the second containing cavity and more than or equal to the internal diameter of described camera lens module.Described voice coil motor further comprises a dust guard, and described dust guard is arranged on the loading end of described base plate.Described load bearing seat is carried on described dust guard.
A kind of camera module, it comprises an image sensing unit, a voice coil motor and a camera lens module.Described image sensing unit comprises a substrate and an image sensor.Described image sensor mechanicalness and being electrically connected on substrate.Described voice coil motor is carried on described substrate and around described image sensor.Described voice coil motor comprises a housing, a fixation kit, a movable component and a load bearing seat.Described housing is used for accommodating described fixation kit, described movable component and described load bearing seat.Described fixation kit has one first containing cavity, and described movable component is contained in described the first containing cavity, and described fixation kit is supported on described load bearing seat.Described movable component has a fitted tube and is around in the coil of described fitted tube outer wall.Described fitted tube has one second containing cavity.Described camera lens module comprises a lens barrel.Described lens barrel is housed in described the second containing cavity.Described housing has a base plate and a plurality of side plate.Described base plate is arranged between described image sensor and described camera lens module.This base plate comprises a first surface and one and the second surface that is oppositely arranged of described first surface.Described substrate is fixed on described first surface.Described a plurality of side plate is arranged at respectively on the second surface of base plate.Described base plate have one with equal the first opening of coaxial setting of described fixation kit and described movable component.The diameter of described the first opening is less than the opening diameter of described the second containing cavity and more than or equal to the internal diameter of the lens barrel of described camera lens module.Described voice coil motor further comprises a dust guard, and described dust guard is arranged on the loading end of described base plate, and described load bearing seat is carried on described dust guard.
With respect to prior art, on the housing of voice coil motor of the present invention, dust guard is set, the fricative dust of camera lens module and movable component and particle fall on dust guard, thus preventing that dust and particle from dropping affects image quality on image sensor.
Description of drawings
Fig. 1 is the solid assembling schematic diagram of the camera module that provides of embodiment of the present invention.
Fig. 2 is the perspective exploded view of the camera module that provides of embodiment of the present invention.
Fig. 3 is the perspective exploded view of the voice coil motor in Fig. 2.
The main element symbol description
| The camera module | 100 |
| Image sensing unit | 10 |
| |
20 |
| The camera lens module | 30 |
| Substrate | 11 |
| Image sensor | 12 |
| Housing | 21 |
| Dust guard | 22 |
| |
23 |
| |
24 |
| |
25 |
| |
26 |
| |
27 |
| Base plate | 210 |
| Side plate | 211 |
| Accommodation space | 212 |
| First surface | 213 |
| Second surface | 214 |
| The first opening | 215 |
| Snap fit | 216 |
| Hole slot | 217 |
| Fixed |
231 |
| |
232 |
| Prism | 2311 |
| Connecting |
2312 |
| Draw-in |
2310 |
| The first containing cavity | 230 |
| Put |
2313 |
| The |
2314 |
| Fitted |
241 |
| |
242 |
| The |
240 |
| |
2401 |
| The |
2411 |
| Through |
250 |
| The |
251 |
| The |
252 |
| The |
260 |
| The second opening | 270 |
| Lens barrel | 31 |
| Eyeglass | 32 |
| External screw thread | 311 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
See also Fig. 1 to Fig. 3, a kind of camera module 100 that provides for embodiment of the present invention.Described camera module 100 comprises an image sensing unit 10, a voice coil motor 20, reaches a camera lens module 30.
Described image sensing unit 10 comprises a substrate 11 and an image sensor 12.Described image sensor 12 mechanicalnesses and being electrically connected on substrate 11.
Described voice coil motor 20 is carried on described substrate 11 and around described image sensor 12.Described voice coil motor 20 comprises a housing 21, a dust guard 22, a fixation kit 23, a movable component 24, two shell fragments 25, a load bearing seat 26 and protecgulums 27.
Described housing 21 is used for eliminating external electromagnetic to the interference of described voice coil motor 20 and prevents the work of its exterior electrical components of electromagnetic effect of described voice coil motor 20.Described housing 21 can be made by magnetic shielding materials such as dilval, conductive plastics, surface conductance material, electro-conductive glass.In present embodiment, the section of described housing 21 is ' ㄩ ' shape, has a base plate 210, reaches four side plates 211.Described base plate 210 is a tetragonal structure.Described base plate 210 is installed on described substrate 11 by the colloid (not shown).Described base plate 210 comprise one with the first surface 213 of described substrate 11 Joints and one and the second surface 214 that is oppositely arranged of described first surface 213.Described four side plates 211 are vertically installed in respectively four sides of the second surface 214 of base plate 210.Described base plate 210 and four side plates 211 be common forms an accommodation space 212 that is used for accommodating described dust guard 22, fixation kit 23, movable component 24, shell fragment 25 and load bearing seat 26.The geometric center of described base plate 210 is offered the first opening 215 of a circle.Described image sensor 12 is passed described the first opening 215.Described the first opening 215 is around described image sensor 12.In present embodiment, wherein a pair of relative side plate 211 is extended with a snap fit 216 to described accommodation space 212 respectively away from the position of described base plate 210.Described two snap fits, 216 place side plates 211 offer hole slot 217 corresponding to the position of described snap fit 216, are used for making snap fit 216 have elasticity.
Be understandable that, in other embodiments, described snap fit 216 also can be one or more than two.
Described dust guard 22 is the colloid layer, and in present embodiment, described dust guard 22 is a double faced adhesive tape, and it simultaneously is glued on the second surface 214 of base plate 210 of described housing 21.
Described fixation kit 23 comprises a fixed mount 231 and the four packaged permanent magnets 232 of being located in fixed mount 231.Described fixed mount 231 is one to be the support body of square tubular, and it comprises four separately and the prism 2311 that is parallel to each other and the connecting rod 2312 of described four prisms 2311 of a plurality of connection.Four prisms 2311 and a plurality of connecting rod 2312 of described fixed mount 231 surround one first containing cavity 230 jointly, and described the first containing cavity 230 is used for accommodating described movable component 24.The prism 2311 of each side of described fixed mount 231 and connecting rod 2312 consists of puts magnetic section 2313, is used for accommodating described permanent magnet 232.The opposite end of each prism 2311 of described fixed mount 231 extends respectively one first reference column 2314 along the length direction of described prism 2311.In present embodiment, the corresponding described snap fit of described connecting rod 2,312 216 positions are provided with draw-in groove 2310.
Described movable component 24 is installed in the first containing cavity 230 of fixation kit 23.Described movable component 24 has a fitted tube 241 and is around in the coil 242 of described fitted tube 241 outer walls.Described coil 242 and described permanent magnet 232 are over against setting.Described fitted tube 241 has cylindrical second containing cavity 240 roughly.Described the second containing cavity 240 is used for accommodating described camera lens module 30.The diameter of described the second containing cavity 240 is greater than the diameter of the first opening 215 on the described base plate 210 of described housing 21.In present embodiment, be provided with internal thread 2401 in described the second containing cavity 240.The sidewall of described the second containing cavity 240 extends to form a plurality of the second reference columns 2411 along the direction of principal axis that is parallel to fitted tube 241.Described a plurality of the second reference column 2411 is distributed in respectively four sides of described fitted tube 241 upper and lower surfaces.
In present embodiment, described fixation kit 23, movable component 24 all with described the first coaxial setting of opening 215.
Described two shell fragments 25 are tetragonal structure, and each shell fragment 25 all has a center through hole 250, and light incides on described image sensor 12 by described center through hole 250.In present embodiment, a plurality of first reference columns 2314 of the corresponding described fixed mount 231 of each shell fragment 25 offer a plurality of the first location holes 251, and a plurality of second reference columns 2411 of corresponding described fitted tube 241 offer a plurality of the second location holes 252.Described two shell fragments 25 are separately positioned on the both sides of described fixed mount 231.Described the first location hole 251 is used for locating with the first reference column 2314 of described fixed mount 231.Described the second location hole 252 is used for locating with the second reference column 2411 of fitted tube 241.
Be understandable that, in practical application, also can save described two shell fragments 25.
That described load bearing seat 26 has is one suitable with the opening size of described the second containing cavity 240, the second circular light hole 260 so that light inject and be imaged on described image sensor 12.Described fixed mount 231 is supported on described load bearing seat 26.Described load bearing seat 26 is fixed on described dust guard 22, and also, described load bearing seat 26 is supported on the second surface 214 of described base plate 210 by described dust guard 22.
Be understandable that, in practical application, also can save described load bearing seat 26, and fixed mount 231 directly is fixed on the second surface 214 of base plate 210 of described housing 21.
The shape of described protecgulum 27 is corresponding with shape and the size of size and described housing 21, and the center of described protecgulum 27 offers the second opening 270 of a circle.The size of described the second opening 270 is greater than the opening size of described the second containing cavity 240.
Described camera lens module 30 comprises a lens barrel 31 and a plurality of eyeglass 32 that is housed in described lens barrel 31.The outer surface of described lens barrel 31 is provided with external screw thread 311 and is used for being screwed with the internal thread 2401 of described second containing cavity 240 of described fitted tube 241.The diameter of described the first opening 215 is greater than the internal diameter of the lens barrel 31 of described camera lens module 30.Be understandable that, in practical application, the diameter of described the first opening 215 can equal the internal diameter of the lens barrel 31 of described camera lens module 30.
During assembling, the described fixation kit 23 that first will fit together, described movable component 24, described shell fragment 25 and described load bearing seat 26 are organized to enter to described housing 21 together.Described snap fit 216 has elasticity, certain elastic deformability can be provided, support in the draw-in groove 2310 of described fixed mount 231, so that described housing 21 is installed in described fixation kit 23, described movable component 24, described shell fragment 25 and described load bearing seat 26 better.Again with the described camera lens module 30 described movable components 24 of precession.When the described camera lens module 30 described movable component 24 of precession, due to the diameter of described the second containing cavity 240 diameter greater than the first opening 215 on the described base plate 210 of described housing 21, between the internal thread 2401 of described the second containing cavity 240 and the external screw thread 311 of described lens barrel 31, fricative dust and particle drop down onto on described dust guard 22 and are blocked, during follow-up use, these dust and particle can not kicked up again, thereby can avoid dust to fall on described image sensor 12, thereby improve the image quality of camera module 100.At last described protecgulum 27 is covered on the end of described side plate 211 away from described base plate 210 that is located at described housing 21 by the mode of gummed, described camera lens module 30 is piercing in outside described protecgulum 27 by the second opening 270 of described protecgulum 27.
Be understandable that, for the person of ordinary skill of the art, can make change and the distortion that other various pictures are answered by technical conceive according to the present invention, and all these change and distortion all should belong to the protection range of claim of the present invention.
Claims (10)
1. voice coil motor, it comprises a housing, one fixation kit, one movable component and a load bearing seat, described housing is used for accommodating described fixation kit, described movable component and described load bearing seat, described fixation kit has one first containing cavity, described movable component is contained in described the first containing cavity, described movable component has a fitted tube and is around in the coil of described fitted tube outer wall, described fitted tube has one second containing cavity, described the second containing cavity is used for accommodating a camera lens module, described fixation kit is supported on described load bearing seat, it is characterized in that: described housing has a base plate, and a plurality of side plates, described base plate is used for being arranged between an image sensor and described camera lens module, described base plate comprises a loading end, described a plurality of side plate is arranged at respectively on the loading end of described base plate, described base plate have one with equal the first opening of coaxial setting of described fixation kit and described movable component, the diameter of described the first opening is less than the opening diameter of described the second containing cavity and more than or equal to the internal diameter of described camera lens module, described voice coil motor further comprises a dust guard, described dust guard is arranged on the loading end of described base plate, described load bearing seat is carried on described dust guard.
2. voice coil motor as claimed in claim 1, it is characterized in that: described dust guard is the colloid layer, and described colloid layer is a double faced adhesive tape, and it simultaneously is glued on the second surface of base plate of described housing.
3. voice coil motor as claimed in claim 1, it is characterized in that: be provided with internal thread in described the second containing cavity, described camera lens module has an external screw thread, and described internal thread is used for coordinating with described external screw thread with described camera lens module and described the second containing cavity bolt.
4. voice coil motor as claimed in claim 1, it is characterized in that: described fixation kit comprises a fixed mount and the four packaged permanent magnets of being located in fixed mount, described fixed mount comprises four separately and the connecting rod of the prism that is parallel to each other and described four prisms of a plurality of connection, four prisms and a plurality of connecting rod of described fixed mount surround described the first containing cavity jointly, the prism of each side of described fixed mount and connecting rod consist of the magnetic section of putting, be used for accommodating described permanent magnet, the opposite end of each prism of described fixed mount extends respectively one first reference column along the length direction of described prism, the sidewall of described the second containing cavity extends to form a plurality of the second reference columns along the direction of principal axis that is parallel to described movable component, described voice coil motor also comprises two shell fragments, each shell fragment all has a center through hole, light incides described image sensor by described center through hole, a plurality of first reference columns of the corresponding described fixed mount of each shell fragment offer a plurality of the first location holes, and corresponding described a plurality of the second reference columns offer a plurality of the second location holes, described two shell fragments are separately positioned on the both sides of described fixed mount, described the first location hole is used for locating with the first reference column of described fixed mount, described the second location hole is used for locating with the second reference column.
5. voice coil motor as claimed in claim 4, it is characterized in that: in described a plurality of side plates, wherein a pair of relative side plate is extended with a snap fit to described accommodation space respectively away from the position of described base plate, described two snap fit place side plates offer hole slot corresponding to the position of described snap fit, be used for making snap fit have elasticity, corresponding described two the snap fit positions of described a plurality of connecting rod are provided with two draw-in grooves, and described two snap fits support respectively in described draw-in groove.
6. voice coil motor as claimed in claim 1, it is characterized in that: described voice coil motor further comprises a protecgulum, described protecgulum is opened in one second opening, described protecgulum lid is located on the end of described side plate away from described base plate of described housing, and described camera lens module is piercing in outside described protecgulum by the second opening of described protecgulum.
7. camera module, it comprises an image sensing unit, one voice coil motor and a camera lens module, described image sensing unit comprises a substrate and an image sensor, described image sensor mechanicalness and being electrically connected on substrate, described voice coil motor is carried on described substrate and around described image sensor, described voice coil motor comprises a housing, one fixation kit, one movable component and a load bearing seat, described housing is used for accommodating described fixation kit, described movable component and described load bearing seat, described fixation kit has one first containing cavity, described movable component is contained in described the first containing cavity, described fixation kit is supported on described load bearing seat, described movable component has a fitted tube and is around in the coil of described fitted tube outer wall, described fitted tube has one second containing cavity, described camera lens module comprises a lens barrel, described lens barrel is housed in described the second containing cavity, it is characterized in that: described housing has a base plate and a plurality of side plate, described base plate is arranged between described image sensor and described camera lens module, this base plate comprises a first surface and one and the second surface that is oppositely arranged of described first surface, described substrate is fixed on described first surface, described a plurality of side plate is arranged at respectively on the second surface of base plate, described base plate have one with equal the first opening of coaxial setting of described fixation kit and described movable component, the diameter of described the first opening is less than the opening diameter of described the second containing cavity and more than or equal to the internal diameter of the lens barrel of described camera lens module, described voice coil motor further comprises a dust guard, described dust guard is arranged on the loading end of described base plate, described load bearing seat is carried on described dust guard.
8. camera module as claimed in claim 7, it is characterized in that: described dust guard is the colloid layer, and described colloid layer is a double faced adhesive tape, and it simultaneously is glued on the second surface of base plate of described housing.
9. camera module as claimed in claim 7, it is characterized in that: be provided with internal thread in described the second containing cavity, described camera lens module has an external screw thread, and described internal thread is used for coordinating with described external screw thread with described camera lens module and described the second containing cavity bolt.
10. camera module as claimed in claim 7, it is characterized in that: described voice coil motor further comprises a protecgulum, described protecgulum is opened in one second opening, described protecgulum lid is located on the end of described side plate away from described base plate of described housing, and described camera lens module is piercing in outside described protecgulum by the second opening of described protecgulum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110375957.0A CN103138522B (en) | 2011-11-23 | 2011-11-23 | Voice coil motor and the camera module using the voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110375957.0A CN103138522B (en) | 2011-11-23 | 2011-11-23 | Voice coil motor and the camera module using the voice coil motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103138522A true CN103138522A (en) | 2013-06-05 |
| CN103138522B CN103138522B (en) | 2017-06-23 |
Family
ID=48497951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110375957.0A Expired - Fee Related CN103138522B (en) | 2011-11-23 | 2011-11-23 | Voice coil motor and the camera module using the voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103138522B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227549A (en) * | 2013-04-15 | 2013-07-31 | 宜兴市贵鑫磁电高科技有限公司 | Subminiature voice coil motor |
| CN105025205A (en) * | 2014-04-30 | 2015-11-04 | 光宝科技股份有限公司 | Image acquisition module with built-in dustproof structure |
| CN105898115A (en) * | 2014-05-13 | 2016-08-24 | 光宝科技股份有限公司 | Image obtaining module |
| CN105898114A (en) * | 2014-05-07 | 2016-08-24 | 光宝科技股份有限公司 | Image obtaining module |
| CN105892000A (en) * | 2016-04-13 | 2016-08-24 | 厦门新鸿洲精密科技有限公司 | Dustproof structure of voice coil motor |
| WO2019051650A1 (en) * | 2017-09-12 | 2019-03-21 | 华为技术有限公司 | Camera module and terminal |
| CN110519490A (en) * | 2019-07-23 | 2019-11-29 | RealMe重庆移动通信有限公司 | Camera module and electronic equipment |
| JP2019211744A (en) * | 2018-05-30 | 2019-12-12 | 日本電産コパル株式会社 | Focal plane shutter and imaging apparatus |
| WO2022000546A1 (en) * | 2020-06-30 | 2022-01-06 | 诚瑞光学(常州)股份有限公司 | Lens driving apparatus and electronic device |
| WO2022000554A1 (en) * | 2020-06-30 | 2022-01-06 | 诚瑞光学(常州)股份有限公司 | Lens driving apparatus and electronic device |
| WO2022000551A1 (en) * | 2020-06-30 | 2022-01-06 | 诚瑞光学(常州)股份有限公司 | Lens driving apparatus and electronic device |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227549A (en) * | 2013-04-15 | 2013-07-31 | 宜兴市贵鑫磁电高科技有限公司 | Subminiature voice coil motor |
| CN105025205A (en) * | 2014-04-30 | 2015-11-04 | 光宝科技股份有限公司 | Image acquisition module with built-in dustproof structure |
| CN105025205B (en) * | 2014-04-30 | 2018-11-06 | 立景创新有限公司 | Image acquisition module with in-building type dustproof construction |
| CN105898114A (en) * | 2014-05-07 | 2016-08-24 | 光宝科技股份有限公司 | Image obtaining module |
| CN105898114B (en) * | 2014-05-07 | 2018-02-16 | 光宝科技股份有限公司 | Image collection module |
| CN105898115A (en) * | 2014-05-13 | 2016-08-24 | 光宝科技股份有限公司 | Image obtaining module |
| CN105892000A (en) * | 2016-04-13 | 2016-08-24 | 厦门新鸿洲精密科技有限公司 | Dustproof structure of voice coil motor |
| WO2019051650A1 (en) * | 2017-09-12 | 2019-03-21 | 华为技术有限公司 | Camera module and terminal |
| US11089189B2 (en) | 2017-09-12 | 2021-08-10 | Huawei Technologies Co., Ltd. | Camera module and terminal |
| JP2019211744A (en) * | 2018-05-30 | 2019-12-12 | 日本電産コパル株式会社 | Focal plane shutter and imaging apparatus |
| JP7228979B2 (en) | 2018-05-30 | 2023-02-27 | 日本電産コパル株式会社 | Focal plane shutter and imaging device |
| CN110519490A (en) * | 2019-07-23 | 2019-11-29 | RealMe重庆移动通信有限公司 | Camera module and electronic equipment |
| WO2022000546A1 (en) * | 2020-06-30 | 2022-01-06 | 诚瑞光学(常州)股份有限公司 | Lens driving apparatus and electronic device |
| WO2022000554A1 (en) * | 2020-06-30 | 2022-01-06 | 诚瑞光学(常州)股份有限公司 | Lens driving apparatus and electronic device |
| WO2022000551A1 (en) * | 2020-06-30 | 2022-01-06 | 诚瑞光学(常州)股份有限公司 | Lens driving apparatus and electronic device |
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| Publication number | Publication date |
|---|---|
| CN103138522B (en) | 2017-06-23 |
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