CN110545371A - Image sensing module, lens module and mobile terminal - Google Patents
Image sensing module, lens module and mobile terminal Download PDFInfo
- Publication number
- CN110545371A CN110545371A CN201910888709.2A CN201910888709A CN110545371A CN 110545371 A CN110545371 A CN 110545371A CN 201910888709 A CN201910888709 A CN 201910888709A CN 110545371 A CN110545371 A CN 110545371A
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- China
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- support
- image sensing
- sensing module
- magnetostrictive
- magnetic
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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
-
- 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
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
Abstract
The application provides an image sensing module, a lens module and a mobile terminal; the image sensing module comprises an image sensor and a support for supporting the image sensor, and also comprises a plurality of magnetic movement mechanisms fixedly connected with the support and a support mechanism for supporting each magnetic movement mechanism; each magnetic moving mechanism comprises a magnetic telescopic film and a driving coil, one end of the magnetic telescopic film is connected with the support, the driving coil drives the magnetic telescopic film to deform and stretch, the other end of the magnetic telescopic film is connected with the supporting mechanism, and the driving coil surrounds the magnetic telescopic film. The image sensor is characterized in that a plurality of magnetostrictive moving mechanisms are distributed on the periphery of the support, magnetostrictive films of the magnetostrictive moving mechanisms are connected with the support, and driving coils surrounding the magnetostrictive films are arranged, so that an induction magnetic field is generated through the driving coils to drive the corresponding magnetostrictive films to deform in a telescopic mode so as to drive the support to move, and further, the image sensor is driven to move.
Description
Technical Field
The application belongs to the technical field of make a video recording, more specifically says, relates to an image sensing module, camera lens module and mobile terminal.
Background
With the increasing use of camera functions, especially the use of mobile terminals such as mobile phones and tablet computers, the camera functions are also used more and more, the requirements for the lens module are also increased, especially the requirements for anti-shake and zooming of the lens are also higher and higher, and thus a driving mechanism is required to drive the lens to move. Current drive mechanisms in lenses typically use coils in conjunction with magnets to drive the lens movement. However, this structure is bulky and complicated.
Disclosure of Invention
An object of the embodiment of the present application is to provide an image sensing module to solve the problems of large volume and complex structure of a driving mechanism in a lens module in the prior art.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: providing an image sensing module, which comprises an image sensor and a support for supporting the image sensor, wherein the image sensing module also comprises a plurality of magnetic movement mechanisms fixedly connected with the support and a support mechanism for supporting each magnetic movement mechanism; each magnetostrictive mechanism comprises a magnetostrictive film and a driving coil, one end of each magnetostrictive film is connected with the support, the driving coil drives the magnetostrictive film to deform and stretch, the other end of each magnetostrictive film is connected with the support mechanism, and the driving coil surrounds the magnetostrictive film.
In one embodiment, each of the magnetostrictive films comprises a substrate; one side of the substrate is provided with a positive magnetic film with positive magnetic striction effect, or/and the other side of the substrate is provided with a negative magnetic striction film with negative magnetic striction effect.
In one embodiment, each of the drive coils is cylindrical, and each of the magnetostrictive films is disposed in the drive coil.
In one embodiment, the image sensing module further comprises a support structure for supporting the support in a floating manner.
In one embodiment, the support structure comprises a plurality of elastic strips, one end of each elastic strip is connected with the support seat, and the other end of each elastic strip is connected with the support mechanism.
In one embodiment, the elastic strip is a flexible membrane, an S-shaped spring or an extension spring.
in one embodiment, the support structure comprises a conical spring, the abutment being mounted on the conical spring.
In one embodiment, each of the magnetostrictive films has an elongated shape.
in one embodiment, each side of said support is provided with at least one of said magnetostrictive films.
In one embodiment, the support mechanism comprises four support plates respectively arranged on the periphery of the support, and the magnetostrictive films on each side of the support are connected with the adjacent support plates.
In one embodiment, a plurality of the magnetic moving mechanisms are distributed on the periphery of the support in an annular array.
Another objective of an embodiment of the present invention is to provide a lens module, which includes a lens and the image sensor module according to any of the above embodiments.
It is another object of the embodiments of the present application to provide a mobile terminal including the image sensing module according to any of the above embodiments.
One or more technical solutions in the embodiments of the present application have at least one of the following technical effects:
The image sensing module that this application embodiment provided, through a plurality of magnetic movement mechanisms of periphery at the support distribution, and be connected each magnetic movement mechanism's magnetostrictive film and support to set up the drive coil that encircles the magnetostrictive film, thereby produce induction magnetic field through the drive coil, with the corresponding magnetostrictive film of drive deformation, move with the drive support, and then drive image sensor removes, simple structure, it is small to occupy.
The lens module that this application embodiment provided has used the image sensing module of above-mentioned embodiment, can realize optics anti-shake through drive image sensor, and simple structure, small.
The mobile terminal provided by the embodiment of the application uses the lens module of the embodiment, can well realize optical anti-shake, and effectively improves imaging quality.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic top view of an image sensing module according to an embodiment of the present disclosure;
Fig. 2 is a schematic front view of an image sensing module according to an embodiment of the present disclosure;
FIG. 3 is a schematic cross-sectional structural view of a magnetostrictive film according to an embodiment of the application;
Fig. 4 is a schematic structural diagram of the image sensor module shown in fig. 2 when driving the image sensor to move.
Fig. 5 is a schematic top view illustrating an image sensing module according to a second embodiment of the present disclosure;
Fig. 6 is a schematic front view of an image sensing module according to a second embodiment of the present disclosure.
Fig. 7 is a schematic top view of an image sensor module according to a third embodiment of the present disclosure.
Fig. 8 is a schematic top view of an image sensor module according to a fourth embodiment of the present disclosure.
Fig. 9 is a schematic top view of an image sensor module according to a fifth embodiment of the present disclosure.
Fig. 10 is a schematic top view of an image sensing module according to a sixth embodiment of the present application.
Fig. 11 is a schematic top view of an image sensor module according to a seventh embodiment of the present disclosure.
Fig. 12 is a schematic top view of an image sensing module according to an eighth embodiment of the present application.
Fig. 13 is a schematic structural diagram of a lens module according to an embodiment of the present application.
Fig. 14 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application.
Wherein, in the drawings, the reference numerals are mainly as follows:
100-a mobile terminal;
20-a lens module; 21-a lens;
10-an image sensing module; 11-an image sensor; 12-a support; 13-a magnetic moving mechanism; 131-a magnetostrictive film; 1311-a substrate; 1312-positive magnetic film; 1313-negative magnetic film; 132-a drive coil; 14-a support mechanism; 141-support plate; 15-a support structure; 151-elastic strips; 1511-flexible membrane; 1512-S shaped domes; 152-conical spring.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.
in the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in some embodiments" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Referring to fig. 1, fig. 2 and fig. 4, an image sensing module 10 provided in the present application will now be described. The image sensing module 10 includes an image sensor 11, a support 12, a plurality of magnetic moving mechanisms 13, and a supporting mechanism 14. The image sensor 11 is used for sensing light to capture an image. The image sensor 11 is mounted on a support 12, and the image sensor 11 is supported by the support 12. The plurality of magnetic movement mechanisms 13 are fixedly connected with the support 12, namely, each magnetic movement mechanism 13 is connected with the support 12, and the plurality of magnetic movement mechanisms 13 are distributed on the periphery of the support 12, so that the support 12 is driven to move by the cooperation of the plurality of magnetic movement mechanisms 13, and the image sensor 11 is driven to move, and optical anti-shake is realized. Each of the magnetic displacement mechanisms 13 is connected to a support mechanism 14, so that each of the magnetic displacement mechanisms 13 is supported by the support mechanism 14. Each of the magnetic moving mechanisms 13 includes a magnetostrictive film 131 and a driving coil 132, and the driving coil 132 is disposed around the magnetostrictive film 131 so that when the driving coil 132 is energized to generate an induced magnetic field, the magnetostrictive film 131 is positioned in the induced magnetic field, so that the magnetostrictive film 131 is deformed in a stretching manner by the induced magnetic field. One end of each magnetostrictive film 131 is connected with the support 12, and the other end of each magnetostrictive film 131 is connected with the support mechanism 14, so that when the magnetostrictive films 131 are deformed, the support 12 can be driven to move, and the image sensor 11 can be driven to move. The magnetostrictive film 131 and the driving coil 132 are used for driving the support 12 to move, so that the structure is simple, the size is small, and a good anti-shake function can be realized in a smaller space range; and the magnetic moving mechanisms 13 can be matched with the image sensor 11 to adjust the position, so that when the device is used, the device can be matched with a lens to realize focusing, and the imaging quality is improved.
In the embodiment of the application, the plurality of magnetic movement mechanisms 13 are distributed on the periphery of the support 12, the magnetostrictive films 131 of the magnetic movement mechanisms 13 are connected with the support 12, and the driving coils 132 surrounding the magnetostrictive films 131 are arranged, so that an induction magnetic field is generated through the driving coils 132 to drive the corresponding magnetostrictive films 131 to deform in a stretching manner, the support 12 is driven to move, and the image sensor 11 is driven to move.
In one embodiment, referring to fig. 3, each magnetostrictive film 131 includes a substrate 1311, a positive magnetostrictive film 1312 and a negative magnetostrictive film 1313 are respectively disposed on two sides of the substrate 1311, the positive magnetostrictive film 1312 has a positive magnetostrictive effect, and the negative magnetostrictive film 1313 has a negative magnetostrictive effect, so that under the action of a magnetic field, the magnetostrictive film 131 can be more elastically deformed, and the image sensor 11 can be more easily driven to move. Of course, in some embodiments, a positively magnetic film 1312 having a positive magnetostriction effect may be provided on only one side of the substrate 1311. In some embodiments, a negative magnetostrictive film 1313 with a negative magnetostrictive effect may be disposed on only one side of the substrate 1311. The positive magnetic film 1312 and the negative magnetic film 1313 are magnetic films whose deformation directions are opposite to each other in a magnetic field.
In one embodiment, support 12 may be a circuit board that mounts and supports image sensor 11. In other embodiments, support 12 may be a separately disposed support plate. In still other embodiments, support 12 may be other structures for supporting image sensor 11.
In the above embodiments, the substrate 1311 may be a substrate made of silicon, glass, polyimide, or the like. The positive magnetic film 1312 and the negative magnetic film 1313 can be made of a magnetostrictive material. Magnetostrictive materials undergo small changes in length and volume due to changes in the magnetization state, a phenomenon known as the magnetostrictive effect. The relative change of the dimension of the magnetostrictive material along the direction of the external magnetic field is called longitudinal magnetostriction; the change of the dimension of the magnetostrictive material perpendicular to the direction of the external magnetic field is called transverse magnetostriction; the relative change in volume of a magnetostrictive material is called volume magnetostriction. The amount of volume magnetostriction is negligible due to the small volume. Longitudinal magnetostriction and transverse magnetostriction are collectively referred to as linear magnetostriction. The magnetostrictive material having the magnetostrictive effect in this embodiment is generally referred to as a magnetostrictive material having linear magnetostriction.
In one embodiment, the magnetostrictive material may be Laves phase rare earth-iron compound RFe 2. Of course, other magnetostrictive materials are possible.
In one embodiment, the positive magnetic film 1312 can be formed on the substrate 1311 by flash evaporation, ion beam sputtering, ion plating, or the like.
In one embodiment, the negative magnetic film 1313 can be formed on the substrate 1311 by flash evaporation, ion beam sputtering, ion plating, or the like.
In one embodiment, referring to fig. 1, each driving coil 132 is mounted on the supporting mechanism 14, and the driving coil 132 is supported by the supporting mechanism 14 and is convenient for the mounting and fixing of the driving coil 132. In other embodiments, the drive coil 132 may also be secured to an external medium. In some embodiments, drive coil 132 may also be mounted on support 12.
In one embodiment, referring to fig. 1, the supporting mechanism 14 includes four supporting plates 141, the four supporting plates 141 are respectively disposed around the support 12, and the magnetostrictive films 131 on each side of the support 12 are connected to the adjacent supporting plates 141. The supporting mechanism 14 with the structure has a simple structure, is convenient for connecting the support plate 141 adjacent to the magnetostrictive film 131, and is convenient for assembling. In some embodiments, support mechanism 14 may also be configured to surround support 12 in a frame-like configuration that facilitates mounting and securing support mechanism 14. Of course, in some embodiments, the supporting mechanism 14 may also be a side wall of a housing or a machine body for mounting and supporting the image sensing module 10.
in one embodiment, referring to fig. 1, a plurality of magnetic moving mechanisms 13 are distributed on the periphery of support 12 in an annular array to facilitate driving support 12 to move and control.
In some embodiments, the magnetic moving mechanism 13 may be disposed at four corners of the support 12. Of course, in other embodiments, the magnetic moving mechanism 13 may be disposed on three sides of the support 12.
In one embodiment, referring to fig. 1, fig. 2 and fig. 4, the plurality of magnetostrictive films 131 cooperate to support the support 12, so that not only the connection strength between each magnetostrictive film 131 and the support 12 can be ensured, but also the support 12 can be driven to move conveniently.
In an embodiment, referring to fig. 10, each magnetostrictive film 131 is in a long strip shape, each magnetostrictive film 131 is arranged in a long strip shape, and the width of each magnetostrictive film 131 is set to be smaller, so that under the action of the induced magnetic field of the driving coil 132, the magnetostrictive films 131 can be better driven to deform and contract, the driving current is reduced, and meanwhile, the volume of each magnetostrictive moving mechanism 13 can be made smaller, so that the volume of the image sensing module 10 is reduced.
In one embodiment, referring to FIG. 10, at least two magnetostrictive films 131 are disposed on each side of support 12, i.e., at least two magnetostrictive moving mechanisms 13 are disposed on each side of support 12 to better support 12. In some embodiments, only three, four, five, etc. magnetostrictive films 131 may be disposed on each side of support 12, and a corresponding three, four, five, etc. magnetostrictive moving mechanisms 13 may be disposed on each side of support 12.
In one embodiment, referring to fig. 1, only one magnetostrictive film 131 may be disposed on each side of support 12, i.e., one magnetostrictive mechanism 13 is disposed on each side of support 12.
In one embodiment, referring to fig. 7, the image sensor module 10 further includes a support structure 15 for supporting the support 12 in a floating manner. The support structure 15 is arranged to better suspend and support the support 12, so that the plurality of magnetic movement mechanisms 13 can better drive the support 12 to move, and further drive the image sensor 11 to move.
In one embodiment, referring to fig. 7, the support structure 15 includes a plurality of elastic strips 151, one end of each elastic strip 151 being connected to the support base 12, and the other end of each elastic strip 151 being connected to the support mechanism 14. The elastic strip 151 is used for supporting the support 12 in a better suspension manner, and the magnetic moving mechanism 13 is convenient to flexibly drive the support 12 to move, so that the resistance of the magnetic moving mechanism 13 driving the support 12 to move is reduced.
in one embodiment, referring to fig. 7, the elastic strips 151 are respectively disposed at the middle of each side of the support 12, so as to uniformly apply force to each side of the support 12, reduce the resistance of the magnetic moving mechanism 13 to drive the support 12 to move, and facilitate the magnetic moving mechanism 13 to flexibly drive the support 12 to move.
In one embodiment, referring to fig. 7, the magnetic movement mechanism 13 is provided at one end of each side of the support 12 for easy control and simplified construction.
In one embodiment, referring to fig. 8, the two ends of each side of the support 12 are respectively provided with a magnetic moving mechanism 13, for example, to have a better driving force to drive the support 12 to move, and further to drive the image sensor to move better.
In one embodiment, referring to fig. 9, the two ends of each side of the support 12 are respectively provided with an elastic strip 151 to support the support 12 more stably.
In one embodiment, referring to fig. 9, the middle of each side of the support 12 is respectively provided with a magnetic moving mechanism 13 to better drive the support 12 to move, so as to simplify the structure and facilitate the control.
In one embodiment, referring to fig. 7, the elastic strip 151 is a flexible membrane 1511, and the support 12 is supported by the flexible membrane 1511, so that when the magnetostrictive film 131 of the magnetostrictive moving mechanism 13 deforms telescopically, the flexible membrane 1511 moves along with the flexible membrane 1511, so that the support 12 can move flexibly.
in one embodiment, referring to fig. 11, the elastic strips 151 are S-shaped elastic pieces 1512, and the S-shaped elastic pieces 1512 are used to cooperate with the supporting base 12, so that the magnetic moving mechanism 13 can drive the supporting base 12 to move flexibly.
In some embodiments, elastic strip 151 may also be an extension spring, with several extension springs cooperating to support holder 12. In other embodiments, other resilient elongated structures may be used for the resilient strip 151.
In one embodiment, referring to FIG. 12, support structure 15 includes a conical spring 152, and holder 12 is mounted on conical spring 152. The support 12 is supported by the conical spring 152, so that when the magnetostrictive film 131 is deformed telescopically, the support 12 can be driven to move well on the conical spring 152.
In one embodiment, referring to fig. 5 and 6, each drive coil 132 is cylindrical and each magnetostrictive film 131 is disposed in drive coil 132. The driving coil 132 is arranged to be cylindrical, a more uniform magnetic field can be generated in the driving coil 132, and the magnetostrictive film 131 is arranged in the driving coil 132, so that the magnetostrictive film 131 can be better deformed in a telescopic manner, and further the telescopic deformation of the magnetostrictive film 131 can be better controlled, so that the movement of the support 12 can be controlled.
The image sensing module 10 of the embodiment of the present application can be applied to a lens module, so that the lens module has a good anti-shake effect. Of course, the image sensor module 10 can also be applied to other imaging devices, such as an industrial imager.
referring to fig. 13, an embodiment of the present application further provides a lens module 20, which includes a lens 21 and the image sensor module 10 according to any of the above embodiments. The lens module 20 of the embodiment of the present application uses the image sensor module 10 of the above embodiment, and can realize optical anti-shake by driving the image sensor 11, and has a simple structure and a small volume; in addition, the distance between the image sensor and the lens 21 can be adjusted by adjusting the position of the image sensor 11, so as to realize the function of focusing.
Referring to fig. 14, an embodiment of the present application further provides a mobile terminal 100 including the lens module 20 according to any of the above embodiments. The mobile terminal 100 of the embodiment of the present application uses the lens module 20 of the above embodiment, which can well realize optical anti-shake and effectively improve imaging quality.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (13)
1. Image sensing module, including image sensor and support image sensor's support, its characterized in that: the image sensing module also comprises a plurality of magnetic movement mechanisms fixedly connected with the support and a supporting mechanism for supporting each magnetic movement mechanism; each magnetostrictive mechanism comprises a magnetostrictive film and a driving coil, one end of each magnetostrictive film is connected with the support, the driving coil drives the magnetostrictive film to deform and stretch, the other end of each magnetostrictive film is connected with the support mechanism, and the driving coil surrounds the magnetostrictive film.
2. The image sensing module of claim 1, wherein: each of said magnetostrictive films comprises a substrate; one side of the substrate is provided with a positive magnetic film with positive magnetic striction effect, or/and the other side of the substrate is provided with a negative magnetic striction film with negative magnetic striction effect.
3. The image sensing module of claim 1, wherein: each driving coil is cylindrical, and each magnetostrictive film is arranged in the driving coil.
4. The image sensing module of claim 1, wherein: the image sensing module also comprises a supporting structure for supporting the support in a suspending manner.
5. The image sensing module of claim 4, wherein: the supporting structure comprises a plurality of elastic strips, one end of each elastic strip is connected with the support, and the other end of each elastic strip is connected with the supporting mechanism.
6. The image sensing module of claim 5, wherein: the elastic strip is a flexible membrane, an S-shaped elastic sheet or an extension spring.
7. The image sensing module of claim 4, wherein: the support structure comprises a conical spring, and the support is mounted on the conical spring.
8. The image sensing module of any one of claims 1-7, wherein: each magnetostrictive film is in a strip shape.
9. The image sensing module of claim 8, wherein: at least one magnetostrictive film is arranged on each side of the support.
10. The image sensing module of any one of claims 1-7, wherein: the support mechanism comprises four support plates which are arranged on the periphery of the support respectively, and the magnetostrictive films on each side of the support are connected with the adjacent support plates.
11. The image sensing module of any one of claims 1-7, wherein: the plurality of magnetic moving mechanisms are distributed on the periphery of the support in an annular array.
12. The lens module comprises a lens and is characterized in that: further comprising an image sensing module according to any of claims 1-11.
13. A mobile terminal, characterized in that: comprising the lens module as claimed in claim 12.
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| CN201910888709.2A CN110545371A (en) | 2019-09-19 | 2019-09-19 | Image sensing module, lens module and mobile terminal |
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| CN201910888709.2A CN110545371A (en) | 2019-09-19 | 2019-09-19 | Image sensing module, lens module and mobile terminal |
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Application publication date: 20191206 |
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| RJ01 | Rejection of invention patent application after publication |