CN105739050A - Closed-loop jitter-resistant automatic focusing driving device - Google Patents
Closed-loop jitter-resistant automatic focusing driving device Download PDFInfo
- Publication number
- CN105739050A CN105739050A CN201610298202.8A CN201610298202A CN105739050A CN 105739050 A CN105739050 A CN 105739050A CN 201610298202 A CN201610298202 A CN 201610298202A CN 105739050 A CN105739050 A CN 105739050A
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- CN
- China
- Prior art keywords
- focusing
- jitter
- resistant
- lens supports
- coil
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
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- 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
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
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- 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)
- Lens Barrels (AREA)
Abstract
The invention discloses a closed-loop jitter-resistant automatic focusing driving device. The closed-loop jitter-resistant automatic focusing driving device comprises a housing. A lens support body is arranged in the housing. A focusing coil is arranged on the upper part of the lens support body. Focusing magnets are uniformly arranged on the position, corresponding to the focusing coil, on the housing. A jitter-resistant coil is arranged on the side wall of the lens support body. Jitter-resistant magnets are arranged on the position, corresponding to the jitter-resistant coil, of the housing. Three hall sensors are further arranged just below an outer ring of the lens support body. The Hall sensors use an optical axis as an axis center and are successively separated by 90 degrees on the same circumference. Four Hall sensing magnets are uniformly arranged around a lower ring optical axis of the lens support body, wherein three Hall sensing magnets are respectively corresponding to the below Hall sensors. The closed-loop jitter-resistant automatic focusing driving device has the advantages that the Hall sensors are added, the automatic focusing signal state and the jitter-resistant signal state can be recorded and confirmed at any time, and the focusing state and the jitter-resistant position can be rapidly and precisely adjusted, so that the photographing effect is more precise and more effective.
Description
Technical field
The present invention relates to the stabilization auto-focusing driving device of a kind of closed loop, be particularly suited in the voice coil motor that optical imaging apparatus uses.
Background technology
Voice coil motor is that in the magnetic field that a kind of magnetic field utilizing permanent-magnet steel and hot-wire coil conductor produce, interacting between magnetic pole produces the device of regular motion, is widely used in mobile phone camera.Old technology all pertains only to the realization driving camera lens to carry out forward focus function, owing to the definition of shooting technology requires higher, therefore, in the process of taking pictures, the handshaking readability impact on taking pictures is very big, in order to solve this problem, the automatic focusing mechanism of exploitation stabilization can solve this problem, it is to avoid rock and cause take pictures unintelligible.
The automatic focusing mechanism of current existing stabilization, mostly it is that the Magnetitum being provided with stabilization coil and correspondence on the outer wall of the lens supports body of voice coil motor carrys out stabilization, this relatively simple for structure, it is impossible to make auto-focusing accurately and quickly and stabilization action according to auto-focusing signal and dither signal.
Summary of the invention
In order to overcome drawbacks described above, the present invention provides the stabilization auto-focusing driving device of a kind of closed loop rational in infrastructure.
To achieve these goals, the technical scheme is that the stabilization auto-focusing driving device of a kind of closed loop, including shell, lens supports body it is provided with in described shell, lens supports body top is provided with focusing coil, the shell of focusing coil correspondence position is provided with uniform focusing Magnetitum, the sidewall of described lens supports body is provided with stabilization coil, the shell row of stabilization coil correspondence position is provided with stabilization Magnetitum, described lens supports body is connected with rear reed, three Hall elements it are additionally provided with immediately below the outer ring of described lens supports body, described Hall element is distributed with optical axis for axle center and being separated by successively on same circumference 90 °, described lens supports body lower loop optical axis is laid with 4 hall sensing Magnetitums, the wherein Hall element of three hall sensing Magnetitum corresponding lower sections respectively.
Further, preferred as one, described lens supports body bottom is provided with groove, and described hall sensing Magnetitum is embedded in groove.
The invention has the beneficial effects as follows: by increasing Hall element, can the signal condition of registration confirmed auto-focusing signal condition and stabilization at any time, calculated by more accurate signal, fast, accurately the position of focusing state and stabilization can be adjusted, thus realizing more accurate and more effective photographic effect.
Accompanying drawing explanation
Fig. 1 is present configuration simplified schematic diagram.
The explosive view of Fig. 2 position present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further.
As shown in Fig. 1 Fig. 2, a kind of stabilization auto-focusing driving device of closed loop, including shell 1, it is provided with lens supports body 2 in described shell 1, lens supports body 2 top is provided with focusing coil 3, the shell 1 of focusing coil 3 correspondence position is provided with uniform focusing Magnetitum 4, the sidewall of described lens supports body 2 is provided with stabilization coil 5, the shell row of stabilization coil 5 correspondence position is provided with stabilization Magnetitum 6, described lens supports body 2 is connected with rear reed 7, three Hall elements 8 it are additionally provided with immediately below the outer ring of described lens supports body 2, described Hall element 8 is distributed with optical axis for axle center and being separated by successively on same circumference 90 °, it is used for corresponding tri-positions of XYZ；Described lens supports body 2 lower loop optical axis is laid with 4 hall sensing Magnetitums 9, the wherein Hall element 8 of three hall sensing Magnetitum 9 corresponding lower sections respectively, these three hall sensing Magnetitum 9 uses as data sensing, another one uses as counterweight, it is ensured that the lens supports body 2 weight on four direction is uniform.Lens supports body 2 bottom is provided with groove 10, and described hall sensing Magnetitum 9 is embedded in groove 10.
Focusing coil 3 and stabilization coil 5 weld with rear reed 7, rear reed 7 welds with the terminal 12 of molding together on base 11, on base 11, integrated terminal 12 welds with flexible PCB 13 again, and flexible PCB 13 is provided with outside output circuit and controls and signal transmission leg；
Technical scheme is not limited to the restriction of above-mentioned specific embodiment, every technology deformation made according to technical scheme, each falls within protection scope of the present invention.
Claims (2)
1. the stabilization auto-focusing driving device of a closed loop, including shell, lens supports body it is provided with in described shell, lens supports body top is provided with focusing coil, the shell of focusing coil correspondence position is provided with uniform focusing Magnetitum, the sidewall of described lens supports body is provided with stabilization coil, the shell row of stabilization coil correspondence position is provided with stabilization Magnetitum, described lens supports body is connected with rear reed, it is characterized in that: immediately below the outer ring of described lens supports body, be additionally provided with three Hall elements, described Hall element is distributed with optical axis for axle center and being separated by successively on same circumference 90 °, described lens supports body lower loop optical axis is laid with 4 hall sensing Magnetitums, the wherein Hall element of three hall sensing Magnetitum corresponding lower sections respectively.
2. the stabilization auto-focusing driving device of closed loop according to claim 1, it is characterised in that: described lens supports body bottom is provided with groove, and described hall sensing Magnetitum is embedded in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298202.8A CN105739050A (en) | 2016-05-09 | 2016-05-09 | Closed-loop jitter-resistant automatic focusing driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298202.8A CN105739050A (en) | 2016-05-09 | 2016-05-09 | Closed-loop jitter-resistant automatic focusing driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105739050A true CN105739050A (en) | 2016-07-06 |
Family
ID=56288288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610298202.8A Pending CN105739050A (en) | 2016-05-09 | 2016-05-09 | Closed-loop jitter-resistant automatic focusing driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105739050A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646810A (en) * | 2016-11-11 | 2017-05-10 | 上海比路电子股份有限公司 | Lens drive device |
| CN108303778A (en) * | 2018-02-12 | 2018-07-20 | 瑞声科技(新加坡)有限公司 | Lens driving apparatus |
| WO2018227588A1 (en) * | 2017-06-16 | 2018-12-20 | 东莞佩斯讯光电技术有限公司 | Three-axis optical image stabilisation sound coil motor |
| CN109960003A (en) * | 2017-12-25 | 2019-07-02 | 惠州大亚湾三美达光学技术有限公司 | A kind of lens driver |
| CN112994275A (en) * | 2021-03-05 | 2021-06-18 | 新思考电机有限公司 | Driving assembly, voice coil motor, camera module and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203745708U (en) * | 2014-01-10 | 2014-07-30 | 瑞声声学科技(苏州)有限公司 | Lens driving device |
| CN203894463U (en) * | 2014-06-19 | 2014-10-22 | 深圳市世尊科技有限公司 | Focusing motor capable of realizing optical zooming and optical anti-vibration simultaneously |
| TW201443546A (en) * | 2013-05-10 | 2014-11-16 | Tdk Taiwan Corp | Optical image stabilizer |
| CN204903923U (en) * | 2015-07-06 | 2015-12-23 | 南昌欧菲光电技术有限公司 | Camera module |
| CN205880327U (en) * | 2016-05-09 | 2017-01-11 | 河南省皓泽电子有限公司 | Loop -locked anti -shake moves auto focus drive arrangement |
-
2016
- 2016-05-09 CN CN201610298202.8A patent/CN105739050A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201443546A (en) * | 2013-05-10 | 2014-11-16 | Tdk Taiwan Corp | Optical image stabilizer |
| CN203745708U (en) * | 2014-01-10 | 2014-07-30 | 瑞声声学科技(苏州)有限公司 | Lens driving device |
| CN203894463U (en) * | 2014-06-19 | 2014-10-22 | 深圳市世尊科技有限公司 | Focusing motor capable of realizing optical zooming and optical anti-vibration simultaneously |
| CN204903923U (en) * | 2015-07-06 | 2015-12-23 | 南昌欧菲光电技术有限公司 | Camera module |
| CN205880327U (en) * | 2016-05-09 | 2017-01-11 | 河南省皓泽电子有限公司 | Loop -locked anti -shake moves auto focus drive arrangement |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646810A (en) * | 2016-11-11 | 2017-05-10 | 上海比路电子股份有限公司 | Lens drive device |
| CN106646810B (en) * | 2016-11-11 | 2024-01-19 | 上海比路电子股份有限公司 | Lens driving device |
| WO2018227588A1 (en) * | 2017-06-16 | 2018-12-20 | 东莞佩斯讯光电技术有限公司 | Three-axis optical image stabilisation sound coil motor |
| CN109960003A (en) * | 2017-12-25 | 2019-07-02 | 惠州大亚湾三美达光学技术有限公司 | A kind of lens driver |
| CN109960003B (en) * | 2017-12-25 | 2024-07-19 | 惠州萨至德光电科技有限公司 | Lens driving device |
| CN108303778A (en) * | 2018-02-12 | 2018-07-20 | 瑞声科技(新加坡)有限公司 | Lens driving apparatus |
| CN108303778B (en) * | 2018-02-12 | 2020-09-18 | 瑞声光学解决方案私人有限公司 | Lens driving device |
| CN112994275A (en) * | 2021-03-05 | 2021-06-18 | 新思考电机有限公司 | Driving assembly, voice coil motor, camera module and electronic equipment |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |