CN112004013A - Camera module and mobile terminal - Google Patents
Camera module and mobile terminal Download PDFInfo
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- CN112004013A CN112004013A CN202010895791.4A CN202010895791A CN112004013A CN 112004013 A CN112004013 A CN 112004013A CN 202010895791 A CN202010895791 A CN 202010895791A CN 112004013 A CN112004013 A CN 112004013A
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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
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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
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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
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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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
- H04N23/60—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
- H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
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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
- H04N23/60—Control of cameras or camera modules
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides a camera module and a mobile terminal, wherein the camera module comprises: a carrier; an image sensor fixedly disposed on the carrier; the first lens and the second lens are movably arranged on the bearing piece and can be respectively aligned with the image sensor through movement so as to be respectively matched with the image sensor to realize image acquisition; the electromagnetic induction module is arranged on the bearing piece and drives the first lens and the second lens to move so as to enable the first lens and the second lens to be respectively aligned with the image sensor. The image that foretell camera module can make every camera lens gather all has higher formation of image effect to the whole formation of image effect that makes camera module obtains promoting, and then can promote user's use and experience.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to a camera module, and further relates to a mobile terminal with the camera module.
Background
Along with the development of intelligent terminal and communication, intelligent terminal's shooting function is stronger and stronger, and the quantity that sets up of camera is also more and more, zooms the camera from the single camera of the tight shot of original function machine to the tandem of intelligent machine, arrives two front four back cameras that appear now etc. again. The appearance of many cameras is mainly in order to satisfy consumer's high quality, multi-functional the demand of making a video recording and shooing, for example in the setting mode of four back cameras before two, its function is that the leading owner is taken a photograph and adds wide angle and the rearmounted owner is taken a photograph and adds wide angle, portrait, blurring etc..
The setting mode of a plurality of cameras on the mobile terminal can promote the experience that the consumer shot, but also increased the cost, lead to the cell-phone price to rise, especially image sensing chip accounts for and often exceeds 30% in the cost of whole camera module.
On the other hand, because of cost and design, in a plurality of camera modules of cell-phone, often only main camera module chooses for use the higher image sensing chip of formation of pixel quality, and other vice cameras then choose for use the relatively lower image sensing chip of price, lead to vice camera's formation of image effect not to reach main camera, have influenced user's use and have experienced.
Disclosure of Invention
In view of this, the present invention provides a camera module, which can improve the imaging effect. The invention also provides a mobile terminal with the camera module.
In order to achieve the purpose, the invention provides the following technical scheme:
a camera module, comprising:
a carrier;
an image sensor fixedly disposed on the carrier;
the first lens and the second lens are movably arranged on the bearing piece;
and the driving mechanism is arranged on the bearing piece and drives the first lens and the second lens to move so as to align the first lens and the second lens with the image sensor respectively.
Preferably, in the camera module, a rail is disposed on the bearing member, a motor is slidably connected to the rail, and the first lens and the second lens are disposed on the motor.
Preferably, in the camera module, the number of the tracks is at least two, the motors are arranged on the at least two tracks, each motor comprises a first motor matched with the first lens and a second motor matched with the second lens, and the first motor is connected with the second motor;
the image sensor is arranged between the rails and is positioned in the central part of the area enclosed by the rails.
Preferably, in the above-mentioned camera module, the actuating mechanism is an electromagnetic induction module, the electromagnetic induction module includes:
a magnet disposed on the motor;
the first coil and the second coil are arranged on the bearing piece and are respectively positioned at two ends of the track.
Preferably, in the camera module, the magnet includes a first magnet and a second magnet, the first magnet and the first coil are both located on a first side of the first lens and a first side of the second lens, the second magnet and the second coil are both located on a second side of the first lens and the second lens, and the first side and the second side are two opposite sides.
Preferably, in the camera module, the carrier is provided with a plurality of auxiliary coils, and the plurality of auxiliary coils, the first coil and the second coil circumferentially surround the motor and the rail;
the magnet further comprises a plurality of auxiliary magnets arranged on the motor, and the plurality of auxiliary magnets, the first magnet and the second magnet circumferentially surround the first lens and the second lens;
wherein the auxiliary coil and the auxiliary magnet can drive the motor in a one-to-one matching manner.
Preferably, in the camera module, the tracks include a first track and a second track respectively located at two sides of the first lens and the second lens, and the first magnet, the first coil, the second magnet and the second coil are all arranged perpendicular to the first track and the second track;
the auxiliary coil includes a third coil, a fourth coil, a fifth coil, a sixth coil, a seventh coil, and an eighth coil, wherein: the third coil, the fourth coil and the seventh coil are arranged along a straight line parallel to the first track and are positioned on one side of the first track, which is far away from the second track; the fifth coil, the sixth coil and the eighth coil are arranged along a straight line parallel to the second track and are all positioned on one side of the second track, which is far away from the first track;
the auxiliary magnet includes a third magnet, a fourth magnet, a fifth magnet, and a sixth magnet, wherein: the third magnet and the fifth magnet are arranged on the first motor, the third magnet is positioned at the edge part of the first motor close to the first track, and the fifth magnet is positioned at the edge part of the first motor close to the second track; the fourth magnet and the sixth magnet are arranged on the second motor, the fourth magnet is positioned at the edge part of the second motor close to the first track, and the sixth magnet is positioned at the edge part of the second motor close to the second track; the third magnet and the fourth magnet are arranged along a straight line parallel to the first rail, and the fifth magnet and the sixth magnet are arranged along a straight line parallel to the second rail.
Preferably, in the camera module, electromagnetic shields are disposed between the adjacent auxiliary coils, between the adjacent auxiliary coil and the first coil, and between the adjacent auxiliary coil and the second coil;
and electromagnetic shielding members are arranged between the auxiliary magnets which are adjacently arranged, between the auxiliary magnets which are adjacently arranged and the first magnet, and between the auxiliary magnets which are adjacently arranged and the second magnet.
Preferably, in the image pickup module, the electromagnetic shield is a plate-like member, and:
the electromagnetic shields arranged between the third coil and the fourth coil and between the fourth coil and the seventh coil are all arranged perpendicular to the first track; the electromagnetic shielding members arranged between the fifth coil and the sixth coil and between the sixth coil and the eighth coil are all arranged perpendicular to the second track; the electromagnetic shields disposed between the second coil and the third coil, between the seventh coil and the first coil, between the first coil and the eighth coil, and between the fifth coil and the second coil are each disposed obliquely with respect to the first track and the second track;
the electromagnetic shielding parts arranged between the third magnet and the fourth magnet and between the fifth magnet and the sixth magnet are all arranged perpendicular to the first track and the second track; the electromagnetic shield between the second magnet and the fourth magnet, between the third magnet and the first magnet, between the first magnet and the fifth magnet, and between the sixth magnet and the second magnet are disposed obliquely with respect to the first track and the second track.
Preferably, in the camera module, a protective cover is disposed on the bearing member, the image sensor, the first lens, the second lens, the electromagnetic induction module, the rail, the motor, the magnet, and the coil are all located in the protective cover, and a shooting hole is formed in the protective cover;
the shooting holes are multiple, multiple shooting holes comprise first shooting holes which are aligned with the image sensor, and second shooting holes and third shooting holes which are located on two sides of the first shooting holes respectively, the second shooting holes are aligned with the stop positions of the first lens which are not aligned with the image sensor, and the third shooting holes are aligned with the stop positions of the second lens which are not aligned with the image sensor.
Preferably, in the camera module, a mobile terminal includes a camera module, and the camera module is according to any one of claims 1 to 8.
Preferably, in the mobile terminal, the bearing member is a printed circuit board of the mobile terminal.
The camera module provided by the invention at least comprises two lenses and an image sensor with higher imaging quality, and the two lenses (namely the first lens and the second lens) can move on the bearing piece, and the first lens and the second lens can be respectively aligned with the image sensor through moving to be matched with the image sensor to realize image acquisition (namely shooting), namely, the first lens and the image sensor can form a camera, the second lens and the image sensor can also form a camera, when the imaging quality of the image sensor is higher, images acquired by each lens can have higher imaging effect, so that the integral imaging effect of the camera module is improved, and the use experience of a user can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a top view of a camera module according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line D-D of FIG. 1;
FIG. 3 is a cross-sectional view E-E of FIG. 1;
FIGS. 4-8 are schematic structural diagrams of the first lens at different stages when moving from the B position to the A position;
fig. 9 is a schematic view of the electromagnetic shield cooperating with all of the coils and all of the magnets.
In fig. 1-9:
1-carrier, 2-image sensor, 3-first lens, 4-second lens, 5-first track, 6-second track, 7-first motor, 8-second motor, 9-first coil, 10-second coil, 11-first magnet, 12-second magnet, 13-third coil, 14-fourth coil, 15-fifth coil, 16-sixth coil, 17-seventh coil, 18-eighth coil, 19-third magnet, 20-fourth magnet, 21-fifth magnet, 22-sixth magnet, 23-electromagnetic shield, 24-shield, 25-first shooting hole, 26-second shooting hole, 27-third shooting hole.
Detailed Description
The invention provides a camera module which can improve the imaging effect. The invention also provides a mobile terminal with the camera module.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 9, the camera module provided in the embodiment of the present invention is used for acquiring images, that is, taking photos, videos, and the like, and mainly includes a bearing member 1, an image sensor 2, a plurality of lenses, and a driving mechanism, where the bearing member 1 is a component for bearing other structures of the camera module, and other components are all disposed on the bearing member 1; the image sensor 2 (i.e. the image sensing chip) is a core component of the camera module, which is preferably a high-pixel sensor with high imaging quality in this embodiment, the number of the image sensor 2 is at least one, and a plurality of lenses and one image sensor 2 are made to work cooperatively, so that the present embodiment preferably has a plurality of lenses, specifically at least two lenses, that is, at least includes a first lens 3 and a second lens 4, and the first lens 3 and the second lens 4 are preferably lenses with different shooting modes (or simply understood as lenses with different functions), for example, the first lens 3 and the second lens 4 may be any two of a main shooting lens, a wide-angle lens, a portrait lens, a blurring lens and a telephoto lens, and in order to realize the cooperative work of a plurality of lenses and one image sensor 2, the first lens 3 and the second lens 4 are made to move and are arranged on the carrier 1, the first lens 3 and the second lens 4 move by the driving of the driving mechanism arranged on the bearing part 1, the first lens 3 and the second lens 4 are driven by the driving mechanism to change positions by moving so as to respectively realize alignment with the image sensor 2, namely, the first lens 3 can be aligned with the image sensor 2 to jointly form a complete camera, and similarly, the second lens 4 can be aligned with the image sensor 2 to jointly form a complete camera, so that the camera formed by each lens has the image sensor 2 with higher pixel quality, the camera formed by any lens has higher imaging effect, the situation that the imaging effect of the secondary camera is not as good as that of the main camera is avoided, and the resolution and the imaging pixel quality consistent with that of the main camera can be ensured when a user uses the secondary camera, the imaging effect of the whole camera module is improved, and the shooting experience of the user is improved.
Specifically, the matching manner between the image sensor 2 and the lens is described by taking an example in which one image sensor 2 is provided and two lenses are provided: as shown in fig. 1-9, the first lens 3 and the second lens 4 are arranged side by side, that is, arranged along a moving direction, the carrier 1 has three positions, that is, an a position and a C position at two sides and a B position at the middle, the image sensor 2 is fixedly arranged at the B position, the initial position of the first lens 3 is the a position, the initial position of the second lens 4 is the C position, when the first lens 3 needs to be used for shooting, the first lens 3 is moved from the a position to the B position, so that the first lens 3 and the image sensor 2 are aligned and can be matched to obtain an image; when shooting is required by using the second lens 4, the second lens 4 is reversely moved from the C position to the B position, so that the second lens 4 and the image sensor 2 are aligned and can cooperate to obtain an image.
In addition, the image sensor 2 can also be a common pixel sensor with a general imaging effect equipped in the sub-camera in the prior art, and even if the image sensor 2 is arranged in such a way, the image pickup module has the advantage that the production cost is reduced due to the reduction of the arrangement number of the image sensors 2.
In order to optimize the technical solution, as shown in fig. 1 to 9, it is preferable that the carrier 1 is provided with a rail, a motor is slidably connected to the rail, and the first lens 3 and the second lens 4 are provided on the motor. There are various ways to move the first lens 3 and the second lens 4 relative to the carrier 1, for example, the first lens 3 and the second lens 4 can be driven by a rack-and-pinion structure, a worm-and-wheel structure, and a screw nut structure, but these structures are relatively complex and are not beneficial to installation in a mobile terminal with a small installation space, so in this embodiment, it is preferable to lay a track with a simple structure on the carrier 1, and make the first lens 3 and the second lens 4 slide on the track to move relative to the carrier 1. In addition, the sliding connection between the first lens 3 and the second lens 4 on the track is realized by a motor, on one hand, because the motor can be used as a mounting base for the first lens 3 and the second lens 4, so that the first lens 3 and the second lens 4 can be more stably connected on the track, and on the other hand, because the motor can be arranged to work in cooperation with the first lens 3 and/or the second lens 4 to enable the first lens 3 and/or the second lens 4 to have more functions, for example, the motor can drive the first lens 3 and/or the second lens 4 to enable the first lens 3 and/or the second lens 4 to have functions of auto-focusing, anti-shake and the like. Further, the mounting base for connecting the rail and the first and second lenses 3 and 4 may be a common component that can only perform a mounting function, such as a slider or the like slidably disposed on the rail, and the auto-focusing and anti-shake of the first and second lenses 3 and 4 may be achieved by an auxiliary coil described later.
As shown in fig. 1-9, it is preferable that the tracks are at least two tracks arranged in parallel, the motors are mounted on at least two tracks (the mounting means that one side edge of the motor is connected to one track, and the other side edge of the motor is connected to the other track, so that the two tracks jointly support the motors), and the motors include a first motor 7 matched with the first lens 3 and a second motor 8 matched with the second lens 4, the first motor 7 and the second motor 8 are connected, the image sensor 2 is arranged between the tracks, and the image sensor 2 is preferably located in the center of the area surrounded by all the tracks. The number of the tracks is at least two, so that the tracks jointly support the motor, and the connection and movement stability of the first lens 3 and the second lens 4 on the tracks can be further improved. Specifically, in this embodiment, it is further preferable that the number of the rails is two (i.e., the first rail 5 and the second rail 6 described later), and two opposite edges of the motor are respectively connected to the two rails, so that the structure of the camera module can be simplified to the greatest extent on the premise of ensuring stable connection and movement, and the camera module can be more easily mounted on the mobile terminal. Simultaneously, on this basis, still preferred set up image sensor 2 at two tracks and enclose into regional central part, so set up can make the camera lens that slides and set up on two tracks more accurate, timely and align with image sensor 2, not only promoted the work efficiency of the module of making a video recording, also mentioned image quality moreover.
And the motor comprises a first motor 7 for specially supporting and mounting the first lens 3 and a second motor 8 for specially supporting and mounting the second lens 4, so that each lens can be provided with the motor, the mounting stability of each lens can be further improved, and each lens can be provided with the special motor for driving the lens, so that each lens has the functions of automatic focusing, anti-shaking and the like, and the performance of the camera module is further improved. Meanwhile, on the basis that the motors comprise the first motor 7 and the second motor 8, the two motors are rigidly connected, so that the first lens 3 and the second lens 4 can be moved synchronously, for example, when the first lens 3 is moved to the B position, due to the linkage arrangement of the first lens 3 and the second lens 4, the second lens 4 can be moved from the B position (the second lens 4 returns to the C position), similarly, when the second lens 4 is moved to the B position, the first lens 3 can be moved from the B position (the first lens 3 returns to the a position, as shown in fig. 4-8), so that the first lens 3 and the second lens 4 are prevented from interfering with each other, the matching efficiency of the lenses and the image sensor 2 can be improved, and the camera module has better service performance. And when the lens moves at the A, B and C three positions, the linked arrangement of the first lens 3 and the second lens 4 can ensure that the lens is aligned with the image sensor 2 at any time, so that the camera module can directly enter a shooting state when being started, and the response speed of the camera module is higher. In addition, the two motors may not be connected, but are independently arranged on the track, so that a special avoidance operation needs to be performed, for example, after the first lens 3 and the image sensor 2 are aligned, the second lens 4 and the image sensor 2 need to be aligned, the first lens 3 needs to be specially made to return to the position a from the position B to avoid the position B for the second lens 4; meanwhile, the first lens 3 and the second lens 4 which are independently arranged are in a state that the two lenses are not aligned with the image sensor 2, namely, the first lens 3 is located at an initial position A, the second lens 4 is located at an initial position C, and the position B is idle, so that when the camera module is started, one of the two lenses needs to be moved to the position B first to be connected into a shooting state.
Specifically, as shown in fig. 1, the driving mechanism may have a plurality of options, such as a motor, a spring, an electromagnetic induction module, and the like, and in this embodiment, the driving mechanism is preferably an electromagnetic induction module that is easy to realize automatic control and accurate in driving, and the electromagnetic induction module includes: a magnet disposed on the motor; and a first coil 9 and a second coil 10 which are arranged on the bearing part 1 and respectively positioned at two ends of the track. The electromagnetic induction module is used for driving the first lens 3 and the second lens 4 to move so as to align the first lens 3 or the second lens 4 with the image sensor 2, and accordingly, the magnet is arranged on the motor which moves synchronously with the lenses, the first coil 9 and the second coil 10 are respectively arranged at two ends of the track, the first coil 9 and/or the second coil 10 can form an electromagnetic field after being electrified, and the magnet generates electromagnetic induction stress in the electromagnetic field so as to drive the motor and the first lens 3 and the second lens 4 thereon to move on the track, so that the first lens 3 or the second lens 4 is aligned or dislocated with the image sensor 2.
Preferably, as shown in fig. 1, the magnet includes a first magnet 11 and a second magnet 12, the first magnet 11 and the first coil 9 are located on a first side of the first lens 3 and the second lens 4, and the second magnet 12 and the second coil 10 are located on a second side of the first lens 3 and the second lens 4, the first side and the second side being two opposite sides (i.e., left and right sides in fig. 1). The first side is a side where one end of the track is located relative to the first lens 3 and the second lens 4, and the second end is a side where the other end of the track is located relative to the first lens 3 and the second lens 4, that is, the first side and the second side are two sides where two ends of the track are located respectively. Making the magnet include the first magnet 11 and the second magnet 12 can improve the driving effect of the electromagnetic induction module on the first lens 3 and the second lens 4, namely: because the first magnet 11 and the first coil 9 are located on the same side, the distance between the first magnet 11 and the first coil 9 is smaller, and the magnetic field intensity at the position of the first magnet 11 is larger, so that the first coil 9 can drive the first magnet 11 more strongly, and the first lens 3 can move from the position A to the position B more quickly and timely; similarly, since the second magnet 12 and the second coil 10 are located on the same side, the distance between the second magnet 12 and the second coil 10 is smaller, and as shown in fig. 1, the magnetic field intensity at the position of the second magnet 12 is larger, so that the second coil 10 can drive the second magnet 12 more strongly, so that the second lens 4 can move from the C position to the B position more quickly and timely. Moreover, with this arrangement, the first magnet 11 and the second magnet 12 can also be overlapped, for example, as shown in fig. 4-8, during the process of moving the second lens 4 from the C position to the B position, the first coil 9 will also cooperate with the first magnet 11 to pull the first lens 4 from the B position to the a position during the process of moving the second lens 4 by cooperating the second coil 10 with the second magnet 12, and because the first motor 7 and the second motor 8 are connected, the above-mentioned pushing force and pulling force will act on the second lens 4 at the same time, so that the second lens 4 can be aligned with the image sensor 2 more quickly and timely under the driving of the dual acting force, and vice versa, when the first lens 3 moves from the a position to the B position.
Further, as shown in fig. 1, on the basis of the first coil 9 and the second coil 10, the carrier 1 is further provided with a plurality of auxiliary coils, and all the auxiliary coils, the first coil 9 and the second coil 10 surround the motor and the track in the circumferential direction; the magnet also comprises a plurality of auxiliary magnets arranged on the motor, and all the auxiliary magnets, the first magnet 11 and the second magnet 12 surround the first lens 3 and the second lens 4 in the circumferential direction; wherein, the auxiliary coil and the auxiliary magnet can drive the motor in a one-to-one matching way. More coils are additionally arranged on the bearing part 1, more magnets are additionally arranged on the motor, and the first lens 3 and the second lens 4 can be driven more efficiently through electromagnetic induction force.
Specifically, as shown in fig. 1, in the present embodiment, the tracks include a first track 5 and a second track 6 respectively located at two sides of the first lens 3 and the second lens 4, and the first magnet 11, the first coil 9, the second magnet 12 and the second coil 10 are all arranged perpendicular to the first track 5 and the second track 6; the auxiliary coils described above include a third coil 13, a fourth coil 14, a fifth coil 15, a sixth coil 16, a seventh coil 17, and an eighth coil 18, wherein: the third coil 13, the fourth coil 14 and the seventh coil 17 are arranged along a straight line parallel to the first track 5 and are all positioned on one side of the first track 5 away from the second track 6; the fifth coil 15, the sixth coil 16 and the eighth coil 18 are arranged along a straight line parallel to the second rail 6 and are all positioned on one side of the second rail 6 away from the first rail 5; the auxiliary magnets include a third magnet 19, a fourth magnet 20, a fifth magnet 21, and a sixth magnet 22, wherein: the third magnet 19 and the fifth magnet 21 are arranged on the first motor 7, the third magnet 19 is positioned at the edge part of the first motor 7 close to the first track 5, and the fifth magnet 21 is positioned at the edge part of the first motor 7 close to the second track 6; the fourth magnet 20 and the sixth magnet 22 are arranged on the second motor 8, the fourth magnet 20 is positioned at the edge part of the second motor 8 close to the first track 5, and the sixth magnet 22 is positioned at the edge part of the second motor 8 close to the second track 6; the third magnet 19 and the fourth magnet 20 are arranged along a line parallel to the first track 5, and the fifth magnet 21 and the sixth magnet 22 are arranged along a line parallel to the second track 6.
In a specific arrangement, the plurality of auxiliary coils and the first and second coils 9, 10 are arranged together to form an enclosure for the motor and the track, i.e. the plurality of auxiliary coils and the first and second coils 9, 10 are arranged around the first and second tracks 5, 6, as shown in fig. 1, in a preferred arrangement, six auxiliary coils may be arranged, i.e. eight coils are arranged around the two tracks on the basis of the addition of the first and second coils 9, 10, for the convenience of distinction, the present embodiment names the six auxiliary coils as the above-mentioned third, fourth, fifth, sixth, seventh and eighth coils 13, 14, 15, 16, 17, 18, respectively, wherein the third, fourth and seventh coils 13, 14, 17 are arranged on the same side of the track, specifically on the side of the first track 5 away from the second track 6, and the three coils are arranged parallel to the first track 5 and are arranged at equal intervals, similarly, the fifth coil 15, the sixth coil 16 and the eighth coil 18 are arranged on the other side of the track, specifically, the side of the second track 6 far away from the first track 5, which is the opposite side of the side where the third coil 13, the fourth coil 14 and the seventh coil 17 are arranged, the fifth coil 15, the sixth coil 16 and the eighth coil 18 are arranged in parallel with the second track 6 and are arranged at equal intervals, and the third coil 13, the fifth coil 15, the fourth coil 14, the sixth coil 16, the seventh coil 17 and the eighth coil 18 are arranged in alignment, so that the straight line formed by the arrangement of the third coil 13, the fourth coil 14 and the seventh coil 17, the straight line formed by the arrangement of the fifth coil 15, the sixth coil 16 and the eighth coil 18, and the two straight lines formed by the arrangement of the first coil 9 and the second coil 10 at the two ends of the first track 5 and the second track 6 are enclosed into a rectangular track, and the two tracks are enclosed into a rectangular track, The image sensor 2, the first motor 7, the second motor 8, the first lens 3, and the second lens 4 are all located within a rectangle. Correspondingly, a plurality of auxiliary magnets are added to the motors, and as shown in fig. 1, a third magnet 19 is provided on the edge of the first motor 7 close to the third coil 13, the fourth coil 14, and the seventh coil 17 (i.e., the edge close to the first track 5), a fourth magnet 20 is provided on the edge of the second motor 8 close to the third coil 13, the fourth coil 14, and the seventh coil 17 (i.e., the edge close to the first track 5), a fifth magnet 21 is provided on the edge of the first motor 7 close to the fifth coil 15, the sixth coil 16, and the eighth coil 18 (i.e., the edge close to the second track 6), and a sixth magnet 22 is provided on the edge of the second motor 8 close to the fifth coil 15, the sixth coil 16, and the eighth coil 18 (i.e., the edge close to the second track 6). The driving process of the coil and the magnet arranged in this way on the first lens 3 and the second lens 4 is as follows: as shown in fig. 4, before the driving is started, the first lens 3 is already located at the B position, the second lens 4 linked with the first lens 3 is located at the C position, and then the electromagnetic induction module drives the two lenses, wherein the coils are powered first, the first coil 9 and the second coil 10 are powered at the same time, the second coil 10 is powered first and then the first coil 9 is powered, similarly, a plurality of auxiliary coils are powered at the same time, or powered sequentially according to the sequence of the following steps, and after the power is powered, the second magnet 12 receives the electromagnetic induction stress (hereinafter, simply referred to as a thrust force) far away from the second coil 10, the first magnet 11 receives the electromagnetic induction stress (hereinafter, simply referred to as a pull force) near the first coil 9, so that the first motor 7, the first lens 3, the second motor 8, and the second lens 4 (hereinafter, collectively referred to as a lens module) are simultaneously reversed (i.e. in the left direction in fig. 4, as indicated by the arrow) (as shown in fig. 4), thereby causing the first lens 3 to shift from the B position to the a position and the second lens 4 to shift from the C position to the B position; during this starting movement, in addition to the pushing force applied to the second magnet 12 by the second coil 10 and the pulling force applied to the first magnet 11 by the first coil 9, the pushing force applied to the fourth magnet 20 by the third coil 13, the pushing force applied to the third magnet 19 by the fourth coil 14, the pushing force applied to the sixth magnet 22 by the fifth coil 15, and the pushing force applied to the fifth magnet 21 by the sixth coil 16 (as shown in fig. 5), the seventh coil 17 and the eighth coil 18 are temporarily not energized; when the third magnet 19 moves between the fourth coil 14 and the seventh coil 17, the fourth magnet 20 moves between the third coil 13 and the fourth coil 14, the fifth magnet 21 moves between the sixth coil 16 and the eighth coil 18, and the sixth magnet 22 moves between the fifth coil 15 and the sixth coil 16 (as shown in fig. 6), the seventh coil 17 applies a pulling force to the third magnet 19, the third coil 13 continues to apply a pushing force to the fourth magnet 20, the eighth coil 18 applies a pulling force to the fifth magnet 21, the fifth coil 15 continues to apply a pushing force to the sixth magnet 22, and the fourth coil 14 and the sixth coil 16 located in the middle stop energizing to avoid interference with the movement of the fourth magnet 20 and the sixth magnet 22; when the first lens 3 approaches the first coil 9 (as shown in fig. 7), the seventh coil 17 continues to apply a pulling force to the third magnet 19, the eighth coil 18 continues to apply a pulling force to the fifth magnet 21, and the third coil 13, the fourth coil 14, the fifth coil 15, and the sixth coil 16 are all de-energized to avoid interference with the movement of the fourth magnet 20 and the sixth magnet 22; when the first lens 3 completely returns to the a position (as shown in fig. 8), all coils are powered off, and the lens module is completely moved, and the second lens 4 is located at the B position and aligned with the image sensor 2. In the above process, the first coil 9 and the second coil 10 are always kept energized until the first lens 3 does not completely return to the a position. When the first lens 3 needs to return to the position B again, the reverse current is supplied to each coil, so that each magnet bears the force opposite to the force.
The arrangement of the auxiliary coil and the auxiliary magnet can enable the lens module to bear electromagnetic induction force in multiple directions simultaneously, so that the lens module is more balanced in stress and more stable in movement. In addition, the arrangement of the auxiliary coil and the auxiliary magnet can play other roles besides improving the moving efficiency and moving stability of the lens, for example: when the motor acts on the lens, the coil also acts as an auxiliary focusing and anti-shake function for the lens, for example, when the second lens 4 is at the position C, as shown in fig. 1, the second lens 4 is provided with a second coil 10, a third coil 13, a fifth coil 15 aligned with the second lens, a fourth coil 14, a sixth coil 16, and the like near the second lens, except that the right side, the top side, and the bottom side of the second lens 4 are respectively provided with the second coil 10, the third coil 13, and the fifth coil 15, so that the number of coils arranged near the second lens 4 is increased, the coils are located at multiple angles and positions around the second lens 4, and the multiple coils can apply electromagnetic induction forces of more different angles and sizes to the second lens 4 in multiple directions and multiple angles, so that the shake amplitude, the zoom rate, the adjustment rate, and the like of the second lens 4 of the coils can be adjusted.
More preferably, as shown in fig. 9, electromagnetic shields 23 are further provided between the adjacent auxiliary coils, between the adjacent auxiliary coil and the first coil 9, and between the adjacent auxiliary coil and the second coil 10; electromagnetic shields 23 are provided between the auxiliary magnets disposed adjacent to each other, between the auxiliary magnets disposed adjacent to each other and the first magnet 11, and between the auxiliary magnets disposed adjacent to each other and the second magnet 12. Set up electromagnetic shield 23 between magnet and magnet, between coil and the coil and between magnet and the coil, can avoid the electromagnetic field mutual interference between magnet and the coil, make the electromagnetic induction module can be more stable drive the lens module. Specifically, the electromagnetic shield 23 may be a flat metal plate.
Preferably, as shown in fig. 9, the above-mentioned shields 23 are preferably plate-shaped members, and each of the electromagnetic shields 23 is provided in such a manner that: the electromagnetic shields 23 arranged between the third coil 13 and the fourth coil 14, and between the fourth coil 14 and the seventh coil 17 are arranged perpendicularly to the first track 5; the electromagnetic shields 23 arranged between the fifth coil 15 and the sixth coil 16, and between the sixth coil 16 and the eighth coil 18, are all arranged perpendicular to the second track 6; electromagnetic shields 23 arranged between the second coil 10 and the third coil 13, between the seventh coil 17 and the first coil 9, between the first coil 9 and the eighth coil 18, and between the fifth coil 15 and the second coil 10 are all arranged obliquely with respect to the first track 5 and the second track 6; electromagnetic shields 23 arranged between the third magnet 19 and the fourth magnet 20 and between the fifth magnet 21 and the sixth magnet 22 are arranged perpendicularly to the first rail 5 and the second rail 6; the electromagnetic shields 23 between the second magnet 12 and the fourth magnet 20, between the third magnet 19 and the first magnet 11, between the first magnet 11 and the fifth magnet 21, and between the sixth magnet 22 and the second magnet 12 are all arranged obliquely with respect to the first track 5 and the second track 6. The electromagnetic shield 23 is installed in a targeted manner according to the installation position of the coil and the magnet to be shielded by each electromagnetic shield 23, and thus electromagnetic isolation between adjacent coils and between adjacent magnets can be more sufficiently achieved. As shown in fig. 1 to fig. 3, in the present embodiment, it is further preferable that the carrier 1 is provided with a protective cover 24, the image sensor 2, the first lens 3, the second lens 4, the electromagnetic induction module, the track, the motor, the magnet, and all the coils are located in the protective cover 24, and the protective cover 24 is provided with a shooting hole. After the protective cover 24 is disposed, it can protect the components inside it, and further, preferably, the protective cover 24 can also have an electromagnetic shielding effect to protect the components inside it from the electromagnetic interference of other electronic devices of the mobile terminal outside it, and the protective cover 24 is provided with a plurality of shooting holes to ensure that the camera module can normally shoot the outside scene, preferably, a first shooting hole 25 is provided in alignment with the image sensor 2, and a second shooting hole 26 and a third shooting hole 27 are provided on both sides of the first shooting hole 25, the second shooting hole 26 is provided in alignment with the first lens 3 at a stop position out of alignment with the image sensor 2, and the second shooting hole 27 is provided in alignment with the second lens 4 at a stop position out of alignment with the image sensor 2, as shown in fig. 2, the three photographing holes are aligned with the a position, the B position, and the C position, respectively, so that the first lens 3 and the second lens 4 can photograph an outside scene regardless of the positions.
In addition, the embodiment further provides a mobile terminal, which includes a camera module, and the camera module is the camera module.
Preferably, the above-mentioned carrier 1 is a printed circuit board of the mobile terminal, that is, the camera module is directly disposed on the printed circuit board of the mobile terminal in the embodiment, so that not only can the communication between the components be facilitated, but also the number of the components can be reduced, which is beneficial to the installation of the camera module in the mobile terminal. In addition, the carrier 1 of the camera module may be a component dedicated to carrying the rail, the lens module, the protective cover 24, and the like, for example, the carrier 1 is a specially-added plate-shaped member, which is connected to a printed circuit board of the mobile terminal to mount the camera module in the mobile terminal.
In this specification, the structures of the respective portions are described in a progressive manner, and the structure of each portion is mainly described as a difference from the existing structure, and the whole and partial structures of the camera module can be obtained by combining the structures of the plurality of portions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (12)
1. The utility model provides a module of making a video recording which characterized in that includes:
a carrier;
an image sensor fixedly disposed on the carrier;
the first lens and the second lens are movably arranged on the bearing piece;
and the driving mechanism is arranged on the bearing piece and drives the first lens and the second lens to move so as to align the first lens and the second lens with the image sensor respectively.
2. The camera module of claim 1, wherein the carrier has a track, a motor is slidably coupled to the track, and the first and second lenses are disposed on the motor.
3. The camera module according to claim 2, wherein the at least two rails are arranged in parallel, the motors are mounted on the at least two rails, and the motors include a first motor engaged with the first lens and a second motor engaged with the second lens, and the first motor and the second motor are connected;
the image sensor is arranged between the rails and is positioned in the central part of the area enclosed by the rails.
4. The camera module of claim 3, wherein the drive mechanism is an electromagnetic induction module, the electromagnetic induction module comprising:
a magnet disposed on the motor;
the first coil and the second coil are arranged on the bearing piece and are respectively positioned at two ends of the track.
5. The camera module of claim 4, wherein the magnet comprises a first magnet and a second magnet, the first magnet and the first coil are both located on a first side of the first lens and the second lens, the second magnet and the second coil are both located on a second side of the first lens and the second lens, and the first side and the second side are two opposing sides.
6. The camera module of claim 5, wherein:
a plurality of auxiliary coils are arranged on the bearing piece, and the plurality of auxiliary coils, the first coil and the second coil circumferentially surround the motor and the track;
the magnet further comprises a plurality of auxiliary magnets arranged on the motor, and the plurality of auxiliary magnets, the first magnet and the second magnet circumferentially surround the first lens and the second lens;
wherein the auxiliary coil and the auxiliary magnet can drive the motor in a one-to-one matching manner.
7. The camera module according to claim 6, wherein the tracks comprise a first track and a second track respectively located on both sides of the first lens and the second lens, and the first magnet, the first coil, the second magnet, and the second coil are all arranged perpendicular to the first track and the second track;
the auxiliary coil includes a third coil, a fourth coil, a fifth coil, a sixth coil, a seventh coil, and an eighth coil, wherein: the third coil, the fourth coil and the seventh coil are arranged along a straight line parallel to the first track and are positioned on one side of the first track, which is far away from the second track; the fifth coil, the sixth coil and the eighth coil are arranged along a straight line parallel to the second track and are all positioned on one side of the second track, which is far away from the first track;
the auxiliary magnet includes a third magnet, a fourth magnet, a fifth magnet, and a sixth magnet, wherein: the third magnet and the fifth magnet are arranged on the first motor, the third magnet is positioned at the edge part of the first motor close to the first track, and the fifth magnet is positioned at the edge part of the first motor close to the second track; the fourth magnet and the sixth magnet are arranged on the second motor, the fourth magnet is positioned at the edge part of the second motor close to the first track, and the sixth magnet is positioned at the edge part of the second motor close to the second track; the third magnet and the fourth magnet are arranged along a straight line parallel to the first rail, and the fifth magnet and the sixth magnet are arranged along a straight line parallel to the second rail.
8. The camera module according to claim 7, wherein electromagnetic shielding members are disposed between the adjacently disposed auxiliary coils, between the adjacently disposed auxiliary coils and the first coil, and between the adjacently disposed auxiliary coils and the second coil;
and electromagnetic shielding members are arranged between the auxiliary magnets which are adjacently arranged, between the auxiliary magnets which are adjacently arranged and the first magnet, and between the auxiliary magnets which are adjacently arranged and the second magnet.
9. The camera module of claim 8, wherein the electromagnetic shield is a plate-like member, and:
the electromagnetic shields arranged between the third coil and the fourth coil and between the fourth coil and the seventh coil are all arranged perpendicular to the first track; the electromagnetic shielding members arranged between the fifth coil and the sixth coil and between the sixth coil and the eighth coil are all arranged perpendicular to the second track; the electromagnetic shields disposed between the second coil and the third coil, between the seventh coil and the first coil, between the first coil and the eighth coil, and between the fifth coil and the second coil are each disposed obliquely with respect to the first track and the second track;
the electromagnetic shielding parts arranged between the third magnet and the fourth magnet and between the fifth magnet and the sixth magnet are all arranged perpendicular to the first track and the second track; the electromagnetic shield between the second magnet and the fourth magnet, between the third magnet and the first magnet, between the first magnet and the fifth magnet, and between the sixth magnet and the second magnet are disposed obliquely with respect to the first track and the second track.
10. The camera module according to claim 8, wherein a protective cover is disposed on the carrier, the image sensor, the first lens, the second lens, the electromagnetic induction module, the rail, the motor, the magnet, and the coil are all disposed in the protective cover, and a shooting hole is disposed on the protective cover;
the shooting holes are multiple, multiple shooting holes comprise first shooting holes which are aligned with the image sensor, and second shooting holes and third shooting holes which are located on two sides of the first shooting holes respectively, the second shooting holes are aligned with the stop positions of the first lens which are not aligned with the image sensor, and the third shooting holes are aligned with the stop positions of the second lens which are not aligned with the image sensor.
11. A mobile terminal comprising a camera module, wherein the camera module is according to any one of claims 1-10.
12. The mobile terminal of claim 11, wherein the carrier is a printed circuit board of the mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895791.4A CN112004013B (en) | 2020-08-31 | 2020-08-31 | Camera module and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010895791.4A CN112004013B (en) | 2020-08-31 | 2020-08-31 | Camera module and mobile terminal |
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| CN112004013A true CN112004013A (en) | 2020-11-27 |
| CN112004013B CN112004013B (en) | 2022-05-10 |
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