CN108490638B - Optical anti-shake structure - Google Patents
Optical anti-shake structure Download PDFInfo
- Publication number
- CN108490638B CN108490638B CN201810501267.7A CN201810501267A CN108490638B CN 108490638 B CN108490638 B CN 108490638B CN 201810501267 A CN201810501267 A CN 201810501267A CN 108490638 B CN108490638 B CN 108490638B
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- base
- lens
- shake
- magnet
- driving
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Adjustment Of Camera Lenses (AREA)
Abstract
The invention discloses an optical anti-shake structure, which comprises a base for mounting a first lens, wherein a lens bracket which can move in the horizontal direction relative to the base and is used for mounting a second lens is arranged on the base, and an anti-shake mechanism is arranged between the base and the lens bracket; the anti-shake mechanism comprises a first magnet arranged on the lens support, a second magnet matched with the first magnet and used for connecting the lens support with the base is arranged on the base, a driving coil capable of enabling the second magnet to generate magnetic force after being electrified is further arranged on the base, and a ball capable of rolling relatively to the base and the lens support and keeping a certain distance between the base and the lens support is arranged between the base and the lens support. The anti-shake mechanism is arranged between the base and the lens bracket, and is separated by a certain distance through the balls, so that the anti-shake mechanism has excellent durability and stability, simple structure, convenient assembly and strong applicability; the ball is adopted, and gaskets are respectively arranged on the upper part and the lower part of the ball, so that the wear resistance is good.
Description
[ field of technology ]
The present invention relates to a lens device, and more particularly, to an optical anti-shake structure.
[ background Art ]
Along with the popularization of anti-shake technology, the anti-shake technology is increasingly used in the monitoring field, and requirements on anti-shake performance, reliability and the like are also higher and higher; wherein life performance is critical to anti-shake, because monitoring products are always in use, and life requirements generally need to reach hundreds of millions of times.
At the early stage of the anti-shake field, the motion mode used is basically a guide rail structure, the anti-shake movable piece is arranged on two guide rails, the motion in one direction can be completed, the anti-shake movable piece is nested in the same way, the motion on the horizontal plane can be completed through the anti-shake, and the motion friction is sliding friction. And the sliding friction has larger friction force, poor anti-shake effect and complex structure.
The present invention has been made in view of the above-described drawbacks.
[ invention ]
The invention aims to provide an optical anti-shake structure, which greatly prolongs the service life of the anti-shake structure and saves electric energy.
In order to solve the technical problems, the invention adopts the following technical scheme: the optical anti-shake structure is characterized by comprising a base for mounting a first lens, wherein a lens bracket capable of moving in the horizontal direction relative to the base and used for mounting a second lens is arranged on the base, and an anti-shake mechanism is arranged between the base and the lens bracket; the anti-shake mechanism comprises a first magnet arranged on the lens support, a second magnet matched with the first magnet and used for connecting the lens support with the base is arranged on the base, a driving coil capable of enabling the second magnet to generate magnetic force after being electrified is further arranged on the base, and a ball capable of rolling relatively to the base and the lens support and keeping a certain distance between the base and the lens support is arranged between the base and the lens support.
The optical anti-shake structure is characterized in that the base is further provided with a self-locking structure capable of fixing the lens support, the self-locking structure comprises a supporting seat connected with the base, a first through hole which can be used for the lens support to penetrate through is formed in the supporting seat, a rotary table which can rotate relative to the supporting seat is arranged on the supporting seat, a second through hole which can be used for the lens support to penetrate through is formed in the rotary table, two top positions which can drive the lens support to rotate when the rotary table rotates are arranged on the inner wall of the second through hole, and a locking sliding block which can be matched with the top positions when the rotary table rotates and then fix the lens support is further arranged on the supporting seat in a sliding mode.
The optical anti-shake structure is characterized in that the top is a protruding structure extending towards the direction of the circle center, an inward concave cambered surface is arranged on the protruding structure, and a boss matched with the top is arranged at the upper end of the lens support.
The optical anti-shake structure is characterized in that the locking slide block is provided with the guide post, the turntable is provided with the driving inclined plane capable of driving the guide post to move, and one end of the locking slide block is provided with the spring capable of pushing the other end of the locking slide block to the lens bracket.
The optical anti-shake structure is characterized in that the base is provided with the ball groove capable of containing balls, and the gasket is arranged in the ball groove.
The optical anti-shake structure is characterized in that the lens support is provided with a driving magnet mounting groove for mounting the driving magnet, and an induction piece is arranged in the driving magnet mounting groove.
The optical anti-shake structure is characterized in that the lens support is provided with the induction magnet, and the base is provided with the Hall element opposite to the induction magnet.
The optical anti-shake structure is characterized by further comprising a driving component which is arranged on the supporting seat and used for driving the turntable to rotate, the driving component is a driving motor, and a rack meshed with an output shaft of the driving motor is arranged on the turntable.
The optical anti-shake structure is characterized in that the supporting seat is provided with the cover plate used for limiting the vertical movement of the turntable, and a tensioning spring is connected between the supporting seat and the turntable.
Compared with the prior art, the optical anti-shake structure provided by the invention has the following effects:
the anti-shake mechanism is arranged between the base and the lens bracket, and is separated by a certain distance through the balls, so that the anti-shake mechanism has excellent durability and stability, simple structure, convenient assembly and strong applicability; the ball is adopted, and gaskets are respectively arranged on the upper part and the lower part of the ball, so that the wear resistance is good;
when the self-locking structure locks the lens bracket, the lens is a lens without an anti-shake function, and when the self-locking structure loosens the lens bracket, the lens is a lens with an anti-shake function; therefore, the optical anti-shake lens can be powered on and powered off as required, so that the load of the anti-shake mechanism is reduced, and the service life of the anti-shake mechanism is prolonged; when the anti-shake function is not required to be started, the locking function is started, and the function is equivalent to that of a common lens; the structure can greatly improve the service life of the anti-shake, save electric energy and can be used as a common lens after the anti-shake function is damaged.
[ description of the drawings ]
The invention is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an assembly view of the base and the self-locking structure of the present invention;
FIG. 3 is an exploded view of the base and lens holder of the present invention;
FIG. 4 is an exploded view of the self-locking structure of the present invention;
FIG. 5 is a bottom view of the base of the present invention;
FIG. 6 is a block diagram of a lens holder according to the present invention;
[ detailed description ] of the invention
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 to 6, an optical anti-shake structure includes a base 1 for mounting a first lens 11, a lens holder 2 capable of moving horizontally relative to the base 1 and for mounting a second lens 21 is provided on the base 1, and an anti-shake mechanism 3 is provided between the base 1 and the lens holder 2; the anti-shake mechanism 3 includes a first magnet 33 disposed on the lens holder 2, a second magnet 36 cooperating with the first magnet 33 to connect the lens holder 2 with the base 1 is disposed on the base 1, a driving coil 32 capable of generating magnetic force on the second magnet 36 after being electrified is further disposed on the base 1, and a ball 31 capable of rolling relatively and keeping a certain distance between the base 1 and the lens holder 2 is disposed between them. The anti-shake mechanism is arranged between the base and the lens bracket, so that the anti-shake mechanism has the advantages of excellent durability and stability, simple structure, convenience in assembly and strong applicability; the ball is adopted, and gaskets are respectively arranged on the upper part and the lower part of the ball, so that the wear resistance is good.
The invention adopts a plane ball structure as a kinematic pair, balls are arranged at three points of a plane, gaskets are arranged on the upper part and the lower part of the balls as wear-resistant bearing pieces, and the gaskets are respectively arranged on a base 1 and a lens bracket 2. The second magnet is arranged on the base 1, and the lens bracket can be well adsorbed on the base by means of attraction between the first magnet and the second magnet and supported by the balls. The motion friction is rolling friction, and has great advantages for energy consumption and durability.
The invention adopts the mode of magnets and coils to drive, increases the driving force, and can achieve the shake correction with higher frequency. In the aspect of feedback, a Hall element is adopted for feedback, and an induction magnet is arranged at the corresponding position of the Hall element. The induction magnets of the hall element may share the drive magnets. The group of driving magnets has the function of two driving magnets, and the two magnets can be made into one magnet in the process.
As shown in fig. 1 to 6, in this embodiment, the base 1 is further provided with a self-locking structure 4 capable of fixing the lens holder 2, the self-locking structure 4 includes a support seat 41 connected with the base 1, a first through hole 411 through which the lens holder 2 can partially pass is formed in the support seat 41, a turntable 42 capable of rotating relative to the support seat 41 is provided on the support seat 41, a second through hole 421 through which the lens holder 2 can partially pass is provided on the turntable 42, two top positions 4211 capable of driving the lens holder 2 to rotate when the turntable 42 rotates are provided on an inner wall of the second through hole 421, and a locking slider 5 capable of being matched with the top positions 4211 when the turntable 42 rotates to fix the lens holder 2 is further slidably provided on the support seat 41. The invention is provided with a self-locking structure and a driving component which can lock the position of the lens bracket on the base; when the self-locking structure locks the lens bracket, the lens is a lens without an anti-shake function, and when the self-locking structure releases the lens bracket, the lens is a lens with an anti-shake function; therefore, the optical anti-shake lens can be powered on and powered off as required, so that the load of the anti-shake mechanism is reduced, and the service life of the anti-shake mechanism is prolonged; when the anti-shake function is not required to be started, the locking function is started, and the function is equivalent to that of a common lens; the structure can greatly improve the service life of the anti-shake, save electric energy and can be used as a common lens after the anti-shake function is damaged.
As shown in fig. 1 to 6, in the present embodiment, the top 4211 is a protruding structure extending toward the center of a circle, an arc surface recessed inwards is provided on the protruding structure, and a boss 22 matched with the top 4211 is provided at the upper end of the lens holder 2. The boss cooperates with the top position for the locking of the lens holder and the turntable.
As shown in fig. 1 to 6, in this embodiment, the locking slider 5 is provided with a guide post 51, the turntable 42 is provided with a driving inclined plane 422 capable of driving the guide post 51 to move, one end of the locking slider 5 is provided with a spring 6 capable of pressing the other end of the locking slider 5 against the lens holder 2, when the turntable rotates, the guide post moves along the driving inclined plane, and then drives the locking slider to move away from or press the lens holder, the force of the spring is greater than the weight of the lens holder during locking, and the lens holder can be kept at a central position in any posture.
As shown in fig. 1 to 6, in this embodiment, the base 1 is provided with a ball groove 12 in which the balls 31 can be placed, and a gasket 121 is disposed in the ball groove 12, and the gasket is made of metal and has good wear resistance.
As shown in fig. 1 to 6, in the present embodiment, the lens holder 2 is provided with a driving magnet mounting groove 22 for mounting a driving magnet 33, and the driving magnet mounting groove 22 is provided with a sensing piece 221, so that the magnetic field can be increased, and the performance such as the driving force can be increased.
As shown in fig. 1 to 6, in the present embodiment, a magnet 34 is provided on the lens holder 2, and a hall element 35 is provided on the base 1 opposite to the magnet 34. The Hall element and the induction magnet are matched in a feedback mode with relatively high precision.
The invention adopts the mode of magnets and coils to drive, increases the driving force, and can achieve the shake correction with higher frequency. In the aspect of feedback, a Hall element is adopted for feedback, and an induction magnet is arranged at the corresponding position of the Hall element. The induction magnets of the hall element may share the drive magnets. The group of driving magnets has the function of two driving magnets, and the two magnets can be made into one magnet in the process.
As shown in fig. 1 to 6, in this embodiment, the present invention further includes a driving assembly 7 disposed on the supporting seat 41 and used for driving the turntable 42 to rotate, the driving assembly 7 is a driving motor, and the turntable 42 is provided with a rack 423 meshed with an output shaft of the driving motor.
As shown in fig. 1 to 6, in the present embodiment, a cover plate 43 for limiting the vertical movement of the turntable 42 is provided on the support base 41, and a tension spring 8 is connected between the support base 41 and the turntable 42.
The installation mode is as follows:
on the base, the second magnetite is installed on the second magnetite installation position of base, and driving coil installs on the coil installation position of base. The Hall element is connected through the FPC, is attached to the Hall element mounting position of the base, is provided with three gasket mounting positions on the base, is used for mounting the gasket therein, and is provided with the ball on the gasket, and the fixed lens is assembled in the inner hole of the fixed lens of the base in a dispensing or fusing mode.
In the lens support, four groups of second magnets are arranged on the driving magnet installation position, one N pole faces upwards, and one S pole faces upwards. The first magnet is arranged on the first magnet installation position of the lens bracket, and the assembly mode of the movable lens and the gasket is similar to that of the base.
In the self-locking structure, the turntable is arranged on the turntable shaft above the locking support seat through an inner hole of the turntable, the locking slide block is arranged in the guide groove, the spring is arranged in the spring mounting groove, and the mounted spring is in a compressed state. One end of the tensioning spring is arranged on the supporting seat, and the other end of the tensioning spring is arranged on the turntable. Thus, a flexible rotation between the locking support seat and the turntable is formed, the whole structure is sealed by the cover plate, the stability of the structure is realized, and the cover plate is locked on the locking support seat through the locking hole on the cover plate.
Claims (5)
1. The optical anti-shake structure is characterized by comprising a base (1) for mounting a first lens (11), wherein a lens bracket (2) which can move in the horizontal direction relative to the base (1) and is used for mounting a second lens (21) is arranged on the base (1), and an anti-shake mechanism (3) is arranged between the base (1) and the lens bracket (2); the anti-shake mechanism (3) comprises a first magnet (33) arranged on the lens support (2), a second magnet (36) which is matched with the first magnet (33) and is used for connecting the lens support (2) with the base (1) is arranged on the base (1), a driving coil (32) which can enable the second magnet (36) to generate magnetic force after being electrified is also arranged on the base (1), and a ball (31) which can roll relatively to the base (1) and the lens support (2) and keep a certain distance between the base and the lens support (2);
the lens holder is characterized in that a self-locking structure (4) capable of fixing the lens holder (2) is further arranged on the base (1), the self-locking structure (4) comprises a supporting seat (41) connected with the base (1), a first through hole (411) through which the lens holder (2) can partially penetrate is formed in the supporting seat (41), a rotary disc (42) capable of rotating relative to the supporting seat (41) is arranged on the supporting seat (41), a second through hole (421) through which the lens holder (2) can partially penetrate is arranged on the rotary disc (42), two top positions (4211) capable of driving the lens holder (2) to rotate when the rotary disc (42) rotates are arranged on the inner wall of the second through hole (421), and a locking slider (5) capable of being matched with the top positions (4211) when the rotary disc (42) rotates so as to fix the lens holder (2) is further arranged on the supporting seat (41) in a sliding mode;
the top position (4211) is a protruding structure extending towards the circle center direction, an inwards concave cambered surface is arranged on the protruding structure, and a boss (22) matched with the top position (4211) is arranged at the upper end of the lens bracket (2);
the lens is characterized in that a guide column (51) is arranged on the locking sliding block (5), a driving inclined plane (422) capable of driving the guide column (51) to move is arranged on the rotary table (42), and a spring (6) capable of pushing the other end of the locking sliding block (5) to the lens bracket (2) is arranged at one end of the locking sliding block (5).
2. An optical anti-shake structure according to claim 1, characterized in that the base (1) is provided with a ball groove (12) in which balls (31) can be placed, and a gasket (121) is provided in the ball groove (12).
3. An optical anti-shake structure according to claim 1, characterized in that an induction magnet (34) is provided on the lens holder (2), and a hall element (35) opposite to the induction magnet (34) is provided on the base (1).
4. The optical anti-shake structure according to claim 1, further comprising a driving assembly (7) disposed on the supporting seat (41) and used for driving the turntable (42) to rotate, wherein the driving assembly (7) is a driving motor, and a rack (423) meshed with an output shaft of the driving motor is disposed on the turntable (42).
5. An optical anti-shake structure according to claim 1, characterized in that the supporting base (41) is provided with a cover plate (43) for limiting the vertical movement of the turntable (42), and a tension spring (8) is connected between the supporting base (41) and the turntable (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810501267.7A CN108490638B (en) | 2018-05-23 | 2018-05-23 | Optical anti-shake structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810501267.7A CN108490638B (en) | 2018-05-23 | 2018-05-23 | Optical anti-shake structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108490638A CN108490638A (en) | 2018-09-04 |
| CN108490638B true CN108490638B (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810501267.7A Active CN108490638B (en) | 2018-05-23 | 2018-05-23 | Optical anti-shake structure |
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| Country | Link |
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| CN (1) | CN108490638B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110109228B (en) * | 2019-04-28 | 2024-02-09 | 河南皓泽电子股份有限公司 | Base for periscope type lens driving device |
| CN118276378A (en) * | 2019-04-28 | 2024-07-02 | 河南皓泽电子股份有限公司 | Lens driving device and periscope type lens mechanism |
| WO2021092857A1 (en) * | 2019-11-14 | 2021-05-20 | 南昌欧菲光电技术有限公司 | Camera module base, camera module and mobile terminal |
| CN113433760B (en) * | 2020-03-06 | 2023-04-07 | 北京小米移动软件有限公司 | Actuator for camera module, camera device and mobile terminal |
| CN112505978A (en) * | 2020-12-09 | 2021-03-16 | 昆山丘钛光电科技有限公司 | Camera rotating device and camera |
| WO2022141486A1 (en) * | 2020-12-31 | 2022-07-07 | 欧菲光集团股份有限公司 | Optical anti-shake driver, image capturing module and electronic device |
| CN112650000A (en) * | 2020-12-31 | 2021-04-13 | 上海比路电子股份有限公司 | Anti-shake structure, anti-shake system and camera device |
| CN113655611B (en) * | 2021-08-12 | 2022-04-01 | 上海比路电子股份有限公司 | Periscopic module of anti-shake |
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| CN203350590U (en) * | 2013-02-21 | 2013-12-18 | 杭州海康威视数字技术股份有限公司 | Lens enclasping mechanism and video camera |
| CN105700272A (en) * | 2016-03-30 | 2016-06-22 | 中山联合光电科技股份有限公司 | Lens anti-shake apparatus with self-locking structure |
| CN207020435U (en) * | 2017-08-16 | 2018-02-16 | 中山联合光电科技股份有限公司 | A kind of stabilization self-locking device of use on optical lens |
| CN108061957A (en) * | 2018-01-06 | 2018-05-22 | 中山联合光电科技股份有限公司 | A kind of optical anti-vibration camera lens with self-locking structure |
| CN208297852U (en) * | 2018-05-23 | 2018-12-28 | 中山联合光电科技股份有限公司 | A kind of optical anti-vibration device |
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2018
- 2018-05-23 CN CN201810501267.7A patent/CN108490638B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203350590U (en) * | 2013-02-21 | 2013-12-18 | 杭州海康威视数字技术股份有限公司 | Lens enclasping mechanism and video camera |
| CN105700272A (en) * | 2016-03-30 | 2016-06-22 | 中山联合光电科技股份有限公司 | Lens anti-shake apparatus with self-locking structure |
| CN207020435U (en) * | 2017-08-16 | 2018-02-16 | 中山联合光电科技股份有限公司 | A kind of stabilization self-locking device of use on optical lens |
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| CN108490638A (en) | 2018-09-04 |
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