CN113301229A - Camera module and electronic equipment - Google Patents
Camera module and electronic equipment Download PDFInfo
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- CN113301229A CN113301229A CN202110549898.8A CN202110549898A CN113301229A CN 113301229 A CN113301229 A CN 113301229A CN 202110549898 A CN202110549898 A CN 202110549898A CN 113301229 A CN113301229 A CN 113301229A
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- telescopic driving
- camera
- driving mechanism
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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
- H04N23/60—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
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- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
- Adjustment Of Camera Lenses (AREA)
Abstract
The application discloses camera module and electronic equipment belongs to the technical field of making a video recording. The camera module comprises a base, a camera, a support frame and a telescopic driving mechanism; the camera is arranged on the support frame, one end of the telescopic driving mechanism is connected with the support frame, and the other end of the telescopic driving mechanism is rotatably connected with the base; under the condition that the telescopic driving mechanism extends or contracts, the telescopic driving mechanism drives the supporting frame to rotate relative to the base. The current relatively poor problem of camera anti-shake effect can be solved to above-mentioned scheme.
Description
Technical Field
The application belongs to the technical field of make a video recording, concretely relates to camera module and electronic equipment.
Background
Nowadays, as the image capturing technology in electronic devices is improved, people hope to capture images with higher quality by using the electronic devices.
However, in the actual shooting process, if the camera of the electronic device shakes, the shot image is blurred. Therefore, in order to solve the above problems, the conventional camera mainly adopts electronic anti-shake and optical anti-shake to improve the image quality. However, since the electronic anti-shake is to process the shot image through a software algorithm, the noise of the processed image is increased, which results in the quality degradation of the image; the optical anti-shake is implemented by performing motion compensation in the opposite direction, but the lens can only move horizontally or rotate around a fixed shaft, so the anti-shake effect is limited. Therefore, the existing camera has poor anti-shake effect.
Disclosure of Invention
The purpose of the embodiment of the application is to provide a camera module and electronic equipment, can solve the current relatively poor problem of camera anti-shake effect.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a camera module, which includes a base, a camera, a support frame, and a telescopic driving mechanism;
the camera is arranged on the support frame, one end of the telescopic driving mechanism is connected with the support frame, and the other end of the telescopic driving mechanism is rotatably connected with the base;
under the condition that the telescopic driving mechanism extends or contracts, the telescopic driving mechanism drives the supporting frame to rotate relative to the base.
In a second aspect, an embodiment of the present application provides an electronic device, which includes the above-mentioned camera module.
In this application embodiment, when the camera module takes place to shake, flexible actuating mechanism drives the support frame through extension or shrink and rotates for the base to can drive and set up the camera rotation on the support frame, camera pivoted opposite direction when camera pivoted direction and the shake, thereby realize the anti-shake. Because the embodiment does not need to process the shot image through a software algorithm, the image quality can be ensured; simultaneously, flexible actuating mechanism rotates with the base to be connected, therefore flexible actuating mechanism can drive the camera and rotate on a plurality of directions to realize the anti-shake in more directions. Therefore, the camera module has a better anti-shake effect.
Drawings
Fig. 1 is a schematic structural diagram of a camera module disclosed in an embodiment of the present application;
fig. 2 is a front view of a camera module disclosed in an embodiment of the present application;
FIG. 3 is a simplified diagram of the structure of FIG. 2;
fig. 4 is a schematic structural diagram of the camera module disclosed in the embodiment of the present application after the camera is rotated;
FIG. 5 is a simplified diagram of the structure of FIG. 4;
fig. 6 is a schematic structural view of the camera module disclosed in the embodiment of the present application after the camera is rotated in another direction;
FIG. 7 is a simplified diagram of the structure of FIG. 6;
fig. 8 is a schematic structural diagram of a telescopic driving mechanism of a camera module disclosed in an embodiment of the present application;
fig. 9 is a schematic structural diagram of a camera module according to another embodiment of the present application.
Description of reference numerals:
100-base, 101-spherical groove;
200-a camera;
300-support frame, 310-support bar;
400-a telescopic driving mechanism, 410-a rotor component, 411-a sliding part, 411 a-a counter bore, 412-a second magnetic part, 413-an elastic part, 420-a stator component, 421-a seat body, 421 a-a spherical part, 422-a first magnetic part and 423-a guide rod.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The following describes the camera module provided in the embodiments of the present application in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.
As shown in fig. 1 to 8, an embodiment of the present application provides a camera module, which includes a base 100, a camera 200, a supporting frame 300, and a telescopic driving mechanism 400.
The camera 200 is disposed on the supporting frame 300, optionally, the camera 200 may be fixedly disposed on the supporting frame 300, and the camera 200 may be located on one side of the supporting frame 300, or may be at least partially located inside the supporting frame 300. One end of the telescopic driving mechanism 400 is connected with the supporting frame 300, and the other end of the telescopic driving mechanism 400 is rotatably connected with the base 100; in the case that the telescopic driving mechanism 400 is extended or contracted, the telescopic driving mechanism 400 drives the supporting frame 300 to rotate relative to the base 100. In the case where the camera 200 is in the non-operating state, the telescopic drive mechanism 400 is neither extended nor contracted, in other words, the telescopic drive mechanism 400 is in the stationary state; under the condition that the camera 200 is in a working state, if the camera 200 shakes, sensors such as a gyroscope in the electronic device can detect the shaking amount of the camera 200 when shaking occurs, and transmit the shaking amount to the processor, the processor performs decomposition calculation on the shaking amount and generates a corresponding shaking compensation instruction, the shaking compensation instruction is transmitted to the telescopic driving mechanism 400, and then the telescopic driving mechanism 400 extends or contracts according to the obtained shaking compensation instruction, so as to drive the camera 200 to move or rotate. That is to say, the length of the telescopic driving mechanism 400 is changed when the camera 200 shakes, so that the supporting frame 300 connected with the telescopic driving mechanism 400 can move or rotate relative to the base 100, and further the camera 200 arranged on the supporting frame 300 is driven to move or rotate, thereby ensuring that the space coordinate of the camera 200 does not change, and achieving the anti-shake purpose. After the photographing operation is completed, the telescopic driving mechanism 400 may be restored to the initial length, and the supporting stand 300 and the camera 200 may also be restored to the initial state.
In this application embodiment, when the camera module shakes, flexible actuating mechanism 400 drives support frame 300 through extension or shrink and rotates for base 100 to can drive and set up camera 200 on support frame 300 and rotate, camera 200 pivoted direction is opposite with camera 200 pivoted direction when shaking, thereby realizes the anti-shake. Because the embodiment does not need to process the shot image through a software algorithm, the image quality can be ensured; meanwhile, the telescopic driving mechanism 400 is rotatably connected to the base 100, so that the telescopic driving mechanism 400 can drive the camera 200 to rotate in multiple directions, thereby achieving anti-shake in more directions. Therefore, the camera module has a better anti-shake effect.
In addition, when the length of the telescopic driving mechanism 400 changes and has a length difference, the support frame 300 can rotate, and the rotating angle depends on the length difference between the telescopic driving mechanisms 400, so that the length difference between the telescopic driving mechanisms 400 is increased, the rotating angle of the support frame 300 can be larger, and the camera module can be more favorably used for dealing with relatively severe shaking.
In an alternative embodiment, the plane of the supporting frame 300 may be perpendicular to the optical axis of the camera 200, and the camera 200 is fixedly connected to the surface of the supporting frame 300 away from the base 100. In this embodiment, because the base 100, the telescopic driving mechanism 400, the supporting frame 300 and the camera 200 are sequentially arranged along the optical axis direction, the overall size of the camera module is larger, and the occupied space of the camera module is larger. Therefore, in another alternative embodiment, the camera 200 is fixedly connected to the surface of the supporting frame 300 facing the base 100. The fixing connection mode can adopt bonding, riveting, screw connection, bolt connection and the like, and the embodiment of the application does not limit the fixing connection mode. In this embodiment, the camera 200 is located in the accommodating space formed by the base 100 and the supporting frame 300, so that the overall size of the camera module is smaller, and the space occupied by the camera module is more favorably reduced.
In a further alternative embodiment, the shape of the supporting frame 300 may be a circle, and since the support of the camera 200 is not a circle in general, the number of the parts of the circular supporting frame 300 that protrude relative to the camera 200 is large, which easily results in a large space occupied by the camera module. Therefore, in another alternative embodiment, the supporting frame 300 includes a plurality of supporting rods 310, each supporting rod 310 is connected end to end in sequence to form a polygonal supporting frame 300, and the connection point of the telescopic driving mechanism 400 and the supporting frame 300 is located at the connection point of two adjacent supporting rods 310. In this embodiment, the polygonal supporting frame 300 has less protruding portions relative to the camera 200, so that it is more beneficial to reduce the space occupied by the camera module.
In an alternative embodiment, the telescopic driving mechanism 400 may be made of a shape memory material, and the telescopic driving mechanism 400 may be deformed when being powered on and may be restored to be deformed when being powered off, so as to drive the camera 200 to move. When the mode is adopted, the deformation of the telescopic driving mechanism 400 is not easy to control, and the transverse deformation is easy to occur, so that the anti-shake effect of the camera module is not improved. Therefore, the telescopic driving mechanism 400 may include a mover assembly 410 and a stator assembly 420, the mover assembly 410 is slidably connected to the stator assembly 420, the mover assembly 410 is fixedly connected to the supporting frame 300, and the stator assembly 420 is rotatably connected to the base 100; when the mover assembly 410 slides with respect to the stator assembly 420, the telescopic driving mechanism 400 drives the support frame 300 to rotate with respect to the base 100. In this embodiment, the mover assembly 410 and the stator assembly 420 move relatively in a sliding manner, and the moving amount and the sliding direction of the mover assembly 410 are easier to control, so that the stability is better, and the anti-shake effect of the camera module is better improved.
In an alternative embodiment, the stator assembly 420 may include a motor rotatably connected to the base 100 and a lead screw connected to the motor, and the mover assembly 410 may include a lead screw sleeve fixedly connected to the support frame 300, the lead screw being in threaded engagement with the lead screw sleeve, and in a case where the motor drives the lead screw to rotate, the lead screw sleeve slides along a direction in which the lead screw extends, so as to drive the camera 200 to move. In this embodiment, the screw rod and the screw rod sleeve are in threaded fit, so that the abrasion loss of the screw rod and the screw rod sleeve is large, and the improvement of the anti-shake effect of the electronic device is not facilitated. Therefore, in an alternative embodiment, the stator assembly 420 may include a seat 421 and a first magnetic member 422, the seat 421 is rotatably connected to the base 100, the first magnetic member 422 is connected to the seat 421, the mover assembly 410 includes a sliding member 411 and a second magnetic member 412, the second magnetic member 412 is disposed on the sliding member 411, and the sliding member 411 is slidably connected to the seat 421; at least one of the first magnetic element 422 and the second magnetic element 412 is an electromagnetic element, and when the electromagnetic element is energized, the mover assembly 410 drives the supporting frame 300 to rotate relative to the base 100. In this embodiment, when the electromagnetic element is energized, the magnetic field of the first magnetic element 422 and the magnetic field of the second magnetic element 412 generate an interaction force, and when the direction of the magnetic field of the first magnetic element 422 is opposite to the direction of the magnetic field of the second magnetic element 412, the mover assembly 410 is far away from the stator assembly 420, and the telescopic driving mechanism 400 performs an extension motion; when the magnetic field direction of the first magnetic member 422 is the same as the magnetic field direction of the second magnetic member 412, the mover assembly 410 approaches the stator assembly 420, and the telescopic driving mechanism 400 performs a contraction motion. When currents with different magnitudes are input to the electromagnetic element, the magnitudes of the magnetic fields generated by the electromagnetic element are different, so that the magnitudes of the interaction forces generated by the magnetic fields of the first magnetic element 422 and the second magnetic element 412 are different, and further, the length variation of the telescopic driving mechanism 400 during extension and contraction is different, so that the support frame 300 can compensate for the displacement generated when the camera 200 shakes in multiple directions. In addition, compared with the scheme that the screw rod is in threaded fit with the screw rod sleeve, the wear loss caused by the direct sliding connection between the sliding part 411 and the seat 421 is small, so that the anti-shake effect of the camera 200 can be improved more favorably.
In a further optional embodiment, in a process that the mover assembly 410 and the stator assembly 420 slide relative to each other, in order to avoid the mover assembly 410 from deviating, the stator assembly 420 may further include a guide rod 423, the guide rod 423 is disposed on the base 421, the first magnetic member 422 is disposed on an outer circumferential surface of the guide rod 423, the first magnetic member 422 is located in the base 421, and the sliding member 411 is sleeved on the guide rod 423. In this embodiment, when the mover assembly 410 slides with respect to the stator assembly 420, since the guide rods 423 may function as a guide, the slide 411 may be prevented from being displaced.
In an alternative embodiment, if the sliding speed of the sliding element 411 is too high, the sliding element 411 may be disengaged from the guide rod 423, so that the anti-shake effect of the electronic device is affected, therefore, the sliding element 411 may be provided with a counter bore 411a, the guide rod 423 is at least partially located in the counter bore 411a, the mover assembly 410 further includes an elastic element 413, one end of the elastic element 413 is connected to the bottom surface of the counter bore 411a, and the other end of the elastic element 413 is connected to the guide rod 423. When the telescopic driving mechanism 400 is extended, the elastic member 413 may generate a damping force on the slider 411, so that the sliding speed of the slider 411 may be limited, and the slider 411 may be prevented from being separated from the guide rod 423. In addition, after the electromagnetic member is powered off, the elastic member 413 may restore the telescopic driving mechanism 400 to the initial state by its elastic restoring force, so that the telescopic driving mechanism 400 may be conveniently operated for the next time.
In another alternative embodiment, the second magnetic element 412 is located on a side of the sliding element 411 facing away from the seat 421. In this embodiment, since the second magnetic member 412 is far from the first magnetic member 422, when the first magnetic member 422 interacts with the second magnetic member 412, a larger current is required for driving, which easily results in larger power consumption of the electronic device. Therefore, in an alternative embodiment, the second magnetic member 412 is located between the sliding member 411 and the seat body 421, the second magnetic member 412 is provided with a through hole, and the guide rod 423 is inserted in the through hole and is in sliding fit with the through hole. In this embodiment, the second magnetic member 412 is closer to the first magnetic member 422, so that when the first magnetic member 422 interacts with the second magnetic member 412, a smaller current is required, which is beneficial to reducing the power consumption of the electronic device. In addition, since the through hole of the second magnetic member 412 is in sliding fit with the guide rod 423, the guide rod 423 can provide a guide for the movement of the second magnetic member 412, which is beneficial for the second magnetic member 412 to move along the extending direction of the guide rod 423 at all times.
In one embodiment, in case of shaking of the camera 200, the camera 200 may be shifted in multiple directions, and therefore, in order to better compensate for the displacement of the camera 200, the seat body 421 may be provided with a spherical portion 421a, and the base 100 is provided with a spherical groove 101, and the spherical portion 421a is engaged with the spherical groove 101. Since the spherical portion 421a rotates in a plurality of directions in the spherical groove 101, the displacement caused by the shake of the camera 200 can be compensated for more.
In an alternative embodiment, the number of the telescopic driving mechanisms 400 is at least two, as shown in fig. 1 to 8, the number of the telescopic driving mechanisms 400 may be three, as shown in fig. 9, the number of the telescopic driving mechanisms 400 may be four, and the number of the telescopic driving mechanisms 400 is not limited in the embodiment of the present application. When the telescopic driving mechanisms 400 are synchronously extended or contracted, the supporting frame 300 moves relative to the base 100. That is, each of the telescopic driving mechanisms 400 is extended to the same length or retracted to the same length when being extended or retracted. The above-described movement can be used to compensate for shake of translation of the camera 200 in the optical axis direction.
The movement of the camera 200 driven by the telescopic driving mechanisms 400 is synthesized by the specific movement of each telescopic driving mechanism 400. In the following description, the movement of the camera 200 will be described in the case where the number of the telescopic driving mechanisms 400 and the number of the support rods 310 are three, and the movement may be specifically classified into three different movement types.
First, as shown in fig. 2 to 3, the three telescopic driving mechanisms 400 do not extend and contract in case of power failure, and the three telescopic driving mechanisms 400 may have the same length. When the currents applied to the three telescopic driving mechanisms 400 are the same, the magnetic field acting forces between the mover assemblies 410 and the stator assemblies 420 are the same, and the displacements of the three mover assemblies 410 are also the same, so that the angles between the telescopic driving mechanisms 400 and the base 100 are not changed. That is, the displacement amounts of the three corners of the triangular support frame are the same, and therefore, the camera 200 can move in the optical axis direction of the camera 200 along with the triangular support frame. It follows that the movement of the triangular support frame described above can be used to compensate for the translational shake of the camera 200 in the optical axis direction.
Second, as shown in fig. 4 to 5, the three telescopic driving mechanisms 400 do not extend and contract in case of power failure, and the three telescopic driving mechanisms 400 may have the same length. When the currents flowing through two of the three telescopic driving mechanisms 400 are the same, the magnetic field acting forces between the two mover assemblies 410 and the stator assembly 420 are the same, and the displacements of the two mover assemblies 410 are also the same, so that the angle between the telescopic driving mechanisms 400 and the base 100 is changed. That is, the displacement amounts of the two corners of the triangular support frame are the same, and therefore, the triangular support frame and the camera 200 perform a rotational movement around the fixed shaft, the rotational angle depending on the length difference between the respective telescopic driving mechanisms 400. Under the condition that the lengths of the three telescopic driving mechanisms 400 are changed, the triangular supporting frame can also drive the camera 200 to move along the direction away from or towards the base 100. It can be seen that the movement of the triangular support frame can be used to compensate for the shake of the camera head 200 in a specific direction.
Third, as shown in fig. 6 to 7, the three telescopic driving mechanisms 400 are not extended and contracted in case of power failure, and the three telescopic driving mechanisms 400 may have the same length. When the currents flowing through the three telescopic driving mechanisms 400 are different, the magnetic field acting forces between the mover assemblies 410 and the stator assemblies 420 of the three telescopic driving mechanisms 400 are different, and the displacements of the mover assemblies 410 are also different, so that the angles between the telescopic driving mechanisms 400 and the base 100 are changed. That is, the displacement amounts of the three corners of the triangular support frame are different from each other, so that the triangular support frame and the camera 200 perform a rotational movement around a non-fixed axis, and the rotational angle depends on the length difference between the telescopic driving mechanisms 400. Under the condition that the lengths of the three telescopic driving mechanisms 400 are changed, the triangular supporting frame can also drive the camera 200 to move along the direction away from or towards the base 100. Therefore, the movement of the triangular support frame can be used for compensating the shake of the camera 200 under irregular shaking.
Only three basic motion types of the triangular support frame are described above, and the triangular support frame can also make more complex motions, which is not described in detail herein.
The embodiment of the application also discloses electronic equipment which comprises the camera module in any embodiment.
The electronic device disclosed in the embodiment of the present application may be a smart phone, a tablet computer, an electronic book reader, a wearable device (e.g., a smart watch), an electronic game machine, and the like, and the specific kind of the electronic device is not limited in the embodiment of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A camera module is characterized by comprising a base, a camera, a support frame and a telescopic driving mechanism;
the camera is arranged on the support frame, one end of the telescopic driving mechanism is connected with the support frame, and the other end of the telescopic driving mechanism is rotatably connected with the base;
under the condition that the telescopic driving mechanism extends or contracts, the telescopic driving mechanism drives the supporting frame to rotate relative to the base.
2. The camera module according to claim 1, wherein a plane of the support frame is perpendicular to an optical axis of the camera, and the camera is fixedly connected with a surface of the support frame facing the base.
3. The camera module according to claim 2, wherein the support frame comprises a plurality of support rods, the support rods are sequentially connected end to form a polygonal support frame, and a joint of the telescopic driving mechanism and the support frame is located at a joint of two adjacent support rods.
4. The camera module according to claim 1, wherein the telescopic driving mechanism comprises a mover assembly and a stator assembly, the mover assembly is slidably connected with the stator assembly, the mover assembly is fixedly connected with the supporting frame, and the stator assembly is rotatably connected with the base;
under the condition that the rotor assembly slides relative to the stator assembly, the telescopic driving mechanism drives the supporting frame to rotate relative to the base.
5. The camera module according to claim 4, wherein the stator assembly includes a base body and a first magnetic member, the base body is rotatably connected to the base, the first magnetic member is connected to the base body, the mover assembly includes a sliding member and a second magnetic member, the second magnetic member is disposed on the sliding member, and the sliding member is slidably connected to the base body;
at least one of the first magnetic part and the second magnetic part is an electromagnetic part, and the rotor assembly drives the support frame to rotate relative to the base under the condition that the electromagnetic part is electrified.
6. The camera module according to claim 5, wherein the stator assembly further includes a guide rod, the guide rod is disposed on the base, the first magnetic member is disposed on an outer circumferential surface of the guide rod, the first magnetic member is located in the base, and the guide rod is sleeved with the sliding member.
7. The camera module according to claim 6, wherein the sliding member has a counter bore, the guide rod is at least partially disposed in the counter bore, the mover assembly further includes an elastic member, one end of the elastic member is connected to a bottom surface of the counter bore, and the other end of the elastic member is connected to the guide rod.
8. The camera module according to claim 6, wherein the second magnetic member is located between the sliding member and the base, the second magnetic member has a through hole, and the guide rod is inserted into the through hole and slidably engaged with the through hole.
9. The camera module of claim 5, wherein the base body is provided with a spherical portion, and the base is provided with a spherical groove, and the spherical portion is engaged with the spherical groove.
10. An electronic device, comprising the camera module according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110549898.8A CN113301229B (en) | 2021-05-20 | 2021-05-20 | Camera module and electronic equipment |
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| CN202110549898.8A CN113301229B (en) | 2021-05-20 | 2021-05-20 | Camera module and electronic equipment |
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| CN113301229A true CN113301229A (en) | 2021-08-24 |
| CN113301229B CN113301229B (en) | 2023-04-18 |
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| CN113301229B (en) | 2023-04-18 |
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