CN113992832A - Anti-shake and focusing driving device for photosensitive chip - Google Patents
Anti-shake and focusing driving device for photosensitive chip Download PDFInfo
- Publication number
- CN113992832A CN113992832A CN202111330049.XA CN202111330049A CN113992832A CN 113992832 A CN113992832 A CN 113992832A CN 202111330049 A CN202111330049 A CN 202111330049A CN 113992832 A CN113992832 A CN 113992832A
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- Prior art keywords
- shake
- focusing
- driving device
- circuit board
- flexible circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
Abstract
The invention provides an anti-shake and focusing driving device for a photosensitive chip, which comprises a driving device body and a flexible circuit board, wherein the driving device body is provided with a magnet, an anti-shake coil and a focusing coil; the flexible circuit board is provided with a photosensitive chip, two opposite ends of the flexible circuit board symmetrically extend to form focusing elastic parts, and a plurality of anti-shake elastic parts are formed by extending along the focusing elastic parts and surrounding the periphery of the flexible circuit board. The flexible circuit board is used in the driving device body, and the input of module signals, focusing current and anti-shake current is realized through the flexible circuit board; simultaneously the flexible circuit board can produce deformation and move and focus when receiving drive power through the direction of the elastic part of focusing of formation at perpendicular sensitization chip, provides the elastic deformation when the side removes through anti-shake elastic part to the flexible circuit board, realizes the purpose of accurate focusing and anti-shake, realizes eliminating the image that the shooting in-process hand trembled and the problem of video shake through sensitization chip anti-shake.
Description
Technical Field
The invention relates to the field of cameras, in particular to a driving device for preventing a photosensitive chip from shaking and focusing.
Background
The existing automatic focusing cameras achieve the aims of anti-shake and focusing by driving a lens to move. And the anti-shake technology of camera lens exists along with the increase of camera lens weight, leads to driving power drive can not have carried out the bottleneck that the anti-shake was carried out to the heavy weight camera lens for the development of drive camera lens anti-shake meets the bottleneck easily, the effect of compatible little volume and anti-shake. And the camera lens anti-shake technology has a defect that the effect of rotating anti-shake cannot be realized, and the camera lens is of a circular structure, so that the purpose of rotating anti-shake cannot be realized after the camera lens rotates. In summary, driving the lens to perform anti-shake is a mature technology, and therefore, research and development are continued on the basis, so that achievement is difficult to obtain, and the research and development cost and the labor cost are high.
Disclosure of Invention
The invention provides an anti-shake and focusing driving device for a photosensitive chip, aims to provide an anti-shake and focusing driving device for a photosensitive chip, which realizes the focusing and anti-shake of a camera in a mode of moving the photosensitive chip and solves the problems of similar structure or single mode of the existing anti-shake motor and the existing focusing motor.
The invention is realized by the following steps: a driving device for preventing shaking and focusing of a photosensitive chip comprises: the driving device comprises a driving device body, a plurality of magnets, an anti-shake coil and a magnet support, wherein the magnets, the anti-shake coil and the magnet support are arranged in the driving device body; and
the focusing elastic parts are arranged on the flexible circuit board, the two opposite ends of the flexible circuit board symmetrically extend to form focusing elastic parts, the elastic deformation generated by the focusing elastic parts is perpendicular to the direction of the photosensitive chip, the focusing elastic parts extend along the focusing elastic parts and surround the periphery of the flexible circuit board to form a plurality of anti-shake elastic parts, and an annular focusing coil is arranged between the magnet and the flexible circuit board; the anti-shake focusing part is arranged on the driving device body, the magnet is arranged between the anti-shake elastic part and the focusing elastic part, and the connecting part of the focusing elastic part and the anti-shake elastic part is arranged on the magnet support.
Preferably, the focusing elastic part is arranged in two symmetrical S-shaped structures.
Preferably, the bending part of the focusing elastic part is provided with a first shaping block.
Preferably, the focusing elastic part of the S-shaped structure projects in a U shape in a direction perpendicular to the photosensitive chip, and an opening of the U shape faces the focusing elastic part of the other S-shaped structure.
Preferably, the periphery of the flexible circuit board is provided with a plurality of connecting bulges in an array, and the connecting bulges are fixedly arranged on the annular focusing coil and are electrically connected with the annular focusing coil.
Preferably, when the flexible circuit board is rectangular or square, the anti-shake elastic part is an L-shaped structure formed by more than two circumferential arrays.
Preferably, a second shaping block is arranged at the bending part of the anti-shake elastic part.
Preferably, the lens of the driving device body is fixedly arranged right above the flexible circuit board.
The invention has the beneficial effects that:
1. the flexible circuit board is used in the driving device body, and the input of module signals, focusing current and anti-shake current is realized through the flexible circuit board; simultaneously, the flexible circuit board provides elastic deformation at the direction of perpendicular sensitization chip through forming the elastic part of focusing, works as the sensitization chip receives and will produce elastic deformation when coming from the annular and focusing coil circular telegram back and producing drive power and focus, will take place elastic deformation when anti-shake elastic part receives the lateral drive power that comes from anti-shake coil and magnet production to realize the accurate purpose of focusing and anti-shake, realize eliminating the image that the shooting in-process hand trembled and the effect of video shake through sensitization chip anti-shake.
2. The focusing elastic part adopts two symmetrical S-shaped structures, and the symmetrical structural design can balance the internal force generated by the photosensitive chip, so that the focusing elastic part can stably move when focusing is carried out through the two S-shaped structures, and the effect of accurately carrying out focusing adjustment is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a driving apparatus for anti-shake and focusing of a photosensitive chip according to an embodiment of the present invention;
FIG. 2 is a partial diagram of a driving apparatus for anti-shake and focusing of a photosensitive chip according to an embodiment of the present invention;
FIG. 3 is a partial schematic view of a driving apparatus for anti-shake and focusing of a photo sensor chip according to an embodiment of the invention;
fig. 4 is a schematic diagram of a flexible circuit board of a driving apparatus for anti-shake and focusing of a photo sensor chip according to an embodiment of the invention.
Reference numerals:
10. a driving device body; 101. a magnet; 102. an anti-shake coil; 103. a magnet holder;
104. a lens; 105. a base; 106. an annular focusing coil;
20. a flexible circuit board; 201. a focusing elastic part; 202. an anti-shake elastic section;
203. a first sizing block; 204. u-shaped; 206. a second shaping block;
207. a connecting projection;
30. and a photosensitive chip.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples of the following,
Referring to fig. 1 to 4, the present embodiment provides a driving device for preventing a photosensitive chip from shaking and focusing, including a driving device body 10 and a flexible circuit board 20, wherein a magnet 101, an anti-shaking coil 102 located in a vertical direction of the magnet 101, and a magnet holder 103 accommodating a plurality of magnets 101 are disposed in the driving device body 10; the flexible circuit board 20 is provided with a photosensitive chip 30, two opposite ends of the flexible circuit board 20 symmetrically extend to form focusing elastic parts 201, elastic deformation (the elastic deformation is caused by the driving force of the coil and the magnet) generated by the focusing elastic parts 201 is perpendicular to the direction of the photosensitive chip 30, a plurality of anti-shake elastic parts 202 are formed by extending along the focusing elastic parts 201 and surrounding the periphery of the flexible circuit board 20, and an annular focusing coil 106 is arranged between the magnet 101 and the flexible circuit board 20. The end of the anti-shake elastic part 202 is disposed on the driving device body 10, the magnet 101 is disposed between the anti-shake elastic part 202 and the flexible circuit board 20, and the connection part of the focusing elastic part 201 and the anti-shake elastic part 202 is fixedly disposed on the magnet holder 103.
The description will be given assuming that the direction perpendicular to the photosensitive chip 30 is the vertical direction or the Z-axis direction, and the plane of the flexible circuit board 20 on which the photosensitive chip 30 is mounted is the horizontal plane or the XY-axis plane.
The flexible circuit board 20 may be divided into three parts, a main body part having a plate structure for carrying and mounting the photosensitive chip 30, a focusing elastic part 201 for providing elastic deformation in a vertical direction, and an anti-shake elastic part 202 for realizing anti-shake movement. The three parts are connected with each other to form an integral structure, two ends of the focusing elastic part 201 and the anti-shake elastic part 202 are fixedly arranged, the focusing elastic part 201 extends from the body part, and is fixed on the magnet support 103 (which will be described in detail later) at the joint of the anti-shake elastic part 202, the anti-shake elastic part 202 is fixedly arranged between the magnet support 103 and the base 105 of the driving device body 10, so that the focusing can be performed by providing elastic deformation through the focusing elastic part 201 (the elastic deformation is generated by the driving force generated by the magnet and the annular focusing coil) when the driving device moves in the vertical direction; the elastic deformation of the anti-shake elastic portion 202 causes the body portion to move in the horizontal plane (elastically deformed by the driving force generated by the magnet and the anti-shake coil), thereby canceling the shake generated by the photosensitive chip 30.
The flexible circuit board 20 is installed in the driving device body 10, the focusing elastic part 201 and the anti-shake elastic part 202 are formed by bending and extending the flexible circuit board 20, and the focusing elastic part 201 in the direction perpendicular to the photosensitive chip 30 can realize the focusing movement of the photosensitive chip 30 in the vertical direction. The two symmetric anti-shake elastic portions 202 are disposed around the periphery of the driving device body 10, and the flexible circuit board 20 and the photosensitive chip 30 are driven by electromagnetic force to move on the horizontal plane, so as to achieve anti-shake. The purpose of anti-shake and focusing is achieved by driving the photosensitive chip 30 to move.
Specifically, as shown in fig. 2 and fig. 3, in the present embodiment, the driving device body 10 is provided with a magnet holder 103 for accommodating a plurality of magnets 101, a bending portion between the anti-shake elastic portion 202 and the focusing elastic portion 201 is fixedly positioned on the magnet holder 103, and an extending end of the anti-shake elastic portion 202 is disposed on the base 105 of the driving device body 10. Fix a position fixed mounting to magnet 101 piece through magnet support 103, and will focus the junction of elasticity portion 201 and anti-shake elasticity portion 202 and fix on magnet support 103, and anti-shake elasticity portion 202 fixes between magnet support 103 and base 105, when making magnet support 103 remove, drive flexible circuit board 20 and move through the elasticity of focusing elasticity portion 201 and anti-shake elasticity portion 202, realize the purpose that drives through electromagnetic force and magnet 101, reach the elastic deformation through flexible circuit board 20 and focus, the effect of anti-shake. As shown in fig. 3 and 4, in the present embodiment, a plurality of connecting protrusions 207 are arranged in a circumferential array on the circumferential side of the flexible circuit board 20, and the connecting protrusions 207 are fixedly arranged on the annular focusing coil 106. The number of the connecting protrusions 207 can be designed according to different driving means for controlling the anti-shake and focusing of the photosensitive chip, if open-loop control is adopted, two connecting protrusions 207 are provided; when closed-loop control is adopted, four connecting protrusions 207 are provided.
Specifically, the magnet and the anti-shake coils 102 are electrified to generate a rotating magnetic field force (the main reason for generating a rotating force is that two anti-shake coils in the same direction are not symmetrically designed but are arranged along the center in a staggered manner), so that the flexible circuit board can rotate at a certain angle on the horizontal plane, and the anti-shake effect is realized in the rotating direction. Specifically, when taking place rotatory shake, anti-shake coil 102 cuts the power that the magnetic field line produced corresponding direction, and then drives flexible circuit board and rotate in certain angle, realizes eliminating the image and the video shake that the in-process hand was trembled and is brought through sensitization chip anti-shake, improves the effect that uses sensitization chip anti-shake and the drive arrangement who focuses to shoot.
Further, using photosensitive chip 30 to carry out the anti-shake, when the camera lens of the different models of adaptation, can not only change the model of photosensitive chip (the size that is then photosensitive chip is different in the physical structure) because of receiving the volume or the weight influence of camera lens on the improvement of drive arrangement structure, consequently to the structural design of photosensitive chip anti-shake, do not have great influence. Moreover, the photosensitive chip 30 can be a photosensitive chip, and the size and weight of the photosensitive chip basically do not increase with the increase of the pixels (the increase of the weight is small, so the weight influence on the driving device for preventing the photosensitive chip from shaking and focusing can be ignored), and the photosensitive chip is square, so the photosensitive chip can achieve the effect of preventing shaking in rotation when the photosensitive chip rotates.
As shown in fig. 2 and 3, the magnet 101 of the driving device body 10 in the present embodiment is disposed between the anti-shake elastic part 202 and the flexible circuit board 20. Magnet 101 is permanent magnet 101, and anti-shake coil 102 on drive arrangement body 10 is then located magnet 101Z axle direction directly over, and when anti-shake coil 102 circular telegram, produce a thrust between corresponding electromagnetic force and the magnet 101, and then drive flexible circuit board 20 and remove, and flexible circuit board 20 can produce corresponding elastic deformation through S style of calligraphy structure to realize the effect that resets after the end removes, reach the purpose that the drive arrangement that realizes photosensitive chip anti-shake and focus focuses.
Further, as shown in fig. 4, in the present embodiment, the focusing elastic portion 201 is disposed in two symmetrical S-shaped structures, and the focusing elastic portion 201 is located directly above the photosensitive chip or the focusing elastic portion 201 is located directly below the photosensitive chip. The S-shaped structure can be understood as multi-layer bending forming, the symmetrical structural design can balance the internal force generated by the photosensitive chip 30, and therefore the focusing mechanism can stably move when focusing is carried out through the two S-shaped structures, so that the focusing adjustment effect can be accurately achieved.
Further, in the present embodiment, a first shaped block 203 is disposed at the bending portion of the focusing elastic portion 201, and the first shaped block 203 may be a plastic block or a foam block. The first shaping block 203 is arranged at each bending part, the first shaping block 203 is fixedly arranged on the focusing elastic part 201 in a bonding mode, the bent S-shaped structure can be shaped through the installation of the first shaping block 203, the problem that the extending flexible circuit board 20 is bent and rebounded is avoided, and the stability of product performance is improved.
As shown in fig. 4, the focusing elastic portion 201 of the S-shaped structure in the present embodiment is projected as a U-shape 204 in a direction perpendicular to the photosensitive chip 30, and an opening of the U-shape 204 faces the focusing elastic portion 201 of another S-shaped structure. The U-shaped 204 structure of the focusing elastic part 201 can adjust the elastic deformation of the S-shaped structure, for example, the width of the two sides of the U-shaped 204 structure, the elastic deformation of the focusing elastic part 201 can be changed by different widths, and meanwhile, the focusing elastic part 201 is ensured to be of the S-shaped structure, so that the driving device matched with photosensitive chips with different sizes for anti-shake and focusing is used, and the practicability is improved.
As shown in fig. 4, in the present embodiment, when the flexible circuit board 20 is rectangular, the anti-shake resilient portions 202 are two L-shaped structures symmetrically disposed. Through the anti-shake elastic parts 202 of the two L-shaped structures, the side edge of the flexible circuit board 20 can be formed with discontinuous encircling, and the anti-shake elastic parts 202 of the L-shaped structures are subjected to bending deformation when moving, so that the photosensitive chip 30 on the flexible circuit board 20 can move on an X axis or a Y axis, the image and video shake caused by hand shake in the shooting process is eliminated, and the anti-shake purpose is realized.
As shown in fig. 2 and fig. 3, in this embodiment, the second fixing block 206 is disposed at a bending portion of the anti-shake elastic portion 202, the second fixing block 206 may also be a plastic piece, and the second fixing block 206 is fixedly mounted in a glue adhesion manner, so that the bending portion of the flexible circuit board 20 can be fixed by the second fixing block 206, the flexible circuit board 20 can be fixed, and the structural stability is improved.
As shown in fig. 1, the lens 104 of the driving device body 10 in this embodiment is fixedly disposed right above the flexible circuit board 20. The lens 104 is fixedly arranged, so that the anti-shake and focusing driving device of the photosensitive chip can be positioned and installed, the focusing movement through the lens 104 is not needed, the flexible circuit board 20 and the photosensitive chip 30 are adopted for focusing movement, the anti-shake and focusing driving device of the whole photosensitive chip is in an overall structure, and the structural stability is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a photosensitive chip anti-shake and drive arrangement who focuses which characterized in that includes:
the driving device comprises a driving device body, a plurality of magnets, an anti-shake coil and a magnet support, wherein the magnets, the anti-shake coil and the magnet support are arranged in the driving device body; and
the focusing elastic parts are arranged on the flexible circuit board, the two opposite ends of the flexible circuit board symmetrically extend to form focusing elastic parts, the elastic deformation generated by the focusing elastic parts is perpendicular to the direction of the photosensitive chip, the focusing elastic parts extend along the focusing elastic parts and surround the periphery of the flexible circuit board to form a plurality of anti-shake elastic parts, and an annular focusing coil is arranged between the magnet and the flexible circuit board;
the end of the anti-shake elastic part is arranged on the driving device body, the magnet is arranged between the anti-shake elastic part and the focusing elastic part, and the connecting part of the focusing elastic part and the anti-shake elastic part is fixedly arranged on the magnet support.
2. The anti-shake and focusing driving device of the photosensitive chip as claimed in claim 1, wherein: the focusing elastic parts are arranged in two symmetrical S-shaped structures and are positioned right above the photosensitive chip or positioned right below the photosensitive chip.
3. The anti-shake and focusing driving device of the photosensitive chip according to claim 1 or 2, wherein: the bending part of the focusing elastic part is provided with a first shaping block.
4. The anti-shake and focusing driving device of the photosensitive chip as claimed in claim 2, wherein: the focusing elastic part of the S-shaped structure is projected in a U shape in a direction perpendicular to the photosensitive chip, and the opening of the U shape faces to the focusing elastic part of the other S-shaped structure.
5. The anti-shake and focusing driving device of the photosensitive chip as claimed in claim 1, wherein: the periphery of the flexible circuit board is provided with a plurality of connecting bulges in an array, and the connecting bulges are fixedly arranged on the annular focusing coil and are electrically connected with the annular focusing coil.
6. The anti-shake and focusing driving device of the photosensitive chip as claimed in claim 1, wherein: when the flexible circuit board is rectangular or square, the anti-shake elastic part is in an L-shaped structure formed by more than two circumferential arrays.
7. The anti-shake and focusing driving device of the photosensitive chip as claimed in claim 1 or 6, wherein: and a second shaping block is arranged at the bending part of the anti-shake elastic part.
8. The anti-shake and focusing driving device of the photosensitive chip as claimed in claim 1, wherein: the lens of the driving device body is fixedly arranged right above the flexible circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111330049.XA CN113992832A (en) | 2021-11-11 | 2021-11-11 | Anti-shake and focusing driving device for photosensitive chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111330049.XA CN113992832A (en) | 2021-11-11 | 2021-11-11 | Anti-shake and focusing driving device for photosensitive chip |
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| Publication Number | Publication Date |
|---|---|
| CN113992832A true CN113992832A (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111330049.XA Pending CN113992832A (en) | 2021-11-11 | 2021-11-11 | Anti-shake and focusing driving device for photosensitive chip |
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| CN (1) | CN113992832A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114390183A (en) * | 2022-02-17 | 2022-04-22 | 维沃移动通信有限公司 | Imaging device and electronic apparatus |
-
2021
- 2021-11-11 CN CN202111330049.XA patent/CN113992832A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114390183A (en) * | 2022-02-17 | 2022-04-22 | 维沃移动通信有限公司 | Imaging device and electronic apparatus |
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