CN210351325U - Camera module and mobile terminal - Google Patents
Camera module and mobile terminal Download PDFInfo
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- CN210351325U CN210351325U CN201921413093.5U CN201921413093U CN210351325U CN 210351325 U CN210351325 U CN 210351325U CN 201921413093 U CN201921413093 U CN 201921413093U CN 210351325 U CN210351325 U CN 210351325U
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Abstract
The embodiment of the utility model provides a camera module and mobile terminal. The camera module comprises a camera, a transmission shaft, a driving mechanism and an angle monitoring assembly, wherein the camera is fixedly connected with the transmission shaft; the driving mechanism drives the camera to extend and/or rotate through the transmission shaft; the angle monitoring assembly comprises a light-emitting element, a grating disc and a light-receiving element, the grating disc is fixedly connected with the transmission shaft, the grating disc can rotate along with the transmission shaft, and a plurality of light-transmitting areas are arranged on the grating disc at intervals along the rotation direction; the light emitting element and the light receiving element are arranged along the axial direction of the transmission shaft, the light emitting element and the light receiving element are respectively arranged on two sides of the grating disc, and the light receiving element can receive light signals from the light emitting element through the light transmitting area. Like this, through angle monitoring subassembly can be accurate monitoring camera in the extended position and/or rotation angle, and then conveniently control the accurate motion of camera, the card is outside at the terminal casing when avoiding the unable withdrawal of camera, and then guarantees the normal operating of camera.
Description
Technical Field
The utility model relates to a mobile terminal technical field especially relates to a camera module and mobile terminal.
Background
With the intelligent development of mobile terminals, in order to improve the beauty and the occupation ratio of screens, the telescopic cameras receive more and more attention. Simultaneously, for letting the user have better experience of shooing, among the prior art, telescopic camera has still increased rotation function to reach multi-angle, diversified shooting effect.
At present, telescopic camera module includes elevator motor, rotating motor and camera, and before shooing, the camera stretches out through elevator motor, and later rethread rotating motor drives the rotatory certain angle of camera, shoots the back that finishes, circles round the same angle with the camera through rotating motor, later rethread elevator motor with the camera withdrawal.
However, in practical use, the lifting motor is often driven not in place, and the rotating motor has an inaccurate rotation angle, so that the camera cannot be retracted and is clamped outside the terminal shell, thereby affecting the normal operation of the telescopic camera.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a camera module and a mobile terminal to solve the problems of the current camera module that the driving of the lifting motor is not in place and the rotation angle of the rotating motor is not accurate.
In order to achieve the above object, the utility model discloses a camera module, which comprises a camera, a transmission shaft, a driving mechanism and an angle monitoring assembly, wherein,
the camera is connected with the transmission shaft;
the driving mechanism drives the camera to extend and/or rotate through the transmission shaft;
the angle monitoring assembly comprises a light-emitting element, a grating disc and a light-receiving element, the grating disc is fixedly connected with the transmission shaft, the grating disc can rotate along with the transmission shaft, and a plurality of light-transmitting areas are arranged on the grating disc at intervals along the rotation direction;
the light emitting element and the light receiving element are arranged along the axial direction of the transmission shaft, the light emitting element and the light receiving element are respectively arranged on two sides of the grating disc, and the light receiving element can receive light signals from the light emitting element through the light transmitting area.
Optionally, the plurality of light-transmitting regions are distributed in a circumferential array with the center of the grating disk as a circle center.
Optionally, the angle monitoring assembly further includes a lens, the light emitting element and the lens are disposed along an axial direction of the transmission shaft, and the lens is located between the light emitting element and the grating disk.
Optionally, the lens is a focusing lens.
Optionally, the angle monitoring assembly further comprises a fixed grating, the fixed grating and the light receiving element are arranged along the axial direction of the transmission shaft, the fixed grating is located between the grating disc and the light receiving element, a through hole is formed in the fixed grating, and light emitted by the light emitting element can pass through the light transmitting area and the through hole to be transmitted to the light receiving element.
Optionally, the light receiving element includes a first light receiving element and a second light receiving element, the through hole includes a first through hole and a second through hole, the first light receiving element corresponds to the first through hole, and the second light receiving element corresponds to the second through hole.
Optionally, the camera module further includes a shaping circuit, and the shaping circuit is electrically connected to the light receiving element.
Optionally, the camera module further comprises a shading cavity, the fixing piece is provided with the shading cavity, the light-emitting element, the grating disc and the light-receiving element are all located in the shading cavity, and the fixing piece is sleeved on the transmission shaft.
Optionally, the driving mechanism includes a driving motor, a first gear and a second gear;
the driving motor is fixedly connected with the first gear, the transmission shaft is fixedly connected with the second gear, the first gear is meshed with the second gear, and the driving motor drives the transmission shaft to rotate through the first gear and the second gear.
The embodiment of the utility model provides a still disclose a mobile terminal, this mobile terminal includes foretell camera module.
According to the above technical scheme, the utility model discloses the camera module includes the camera, transmission shaft and angle monitoring subassembly, when transmission shaft control camera begins to go up and down or rotatory, grating dish with transmission shaft fixed connection also can be along with the transmission shaft is rotatory, when light transmission area on the grating dish aligns with light emitting component, light passes through the grating dish, received by light receiving component, when light transmission area on the grating dish takes place the skew with light emitting component, the light of light emitting component transmission can not pass the grating dish, light receiving component can not receive the light that comes from light emitting component promptly, and then can confirm the angle that the transmission shaft rotated through the number of times that light receiving component received light. Like this, through the angle that monitoring camera that angle monitoring subassembly can be accurate the angle that the back rotated after the displacement and/or stretch out in the lift process, and then conveniently control the accurate motion of camera, the card is outside at terminal shell when avoiding the unable withdrawal of camera, and then guarantees the normal operating of camera.
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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a camera module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an angle monitoring assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a grating disk according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another grating disk according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The camera module according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings. Fig. 1 is a schematic structural diagram of a camera module according to an embodiment of the present invention. As shown in fig. 1, the camera module comprises a camera 1, a transmission shaft 2, a driving mechanism 3 and an angle monitoring assembly 4, wherein the camera 1 is connected with the transmission shaft 2; the driving mechanism 3 drives the camera 1 to extend and/or rotate through the transmission shaft 2; the angle monitoring assembly 4 includes a light emitting device 41, a grating disk 42 and a light receiving device 43, the grating disk 42 is fixedly connected to the transmission shaft 2, the grating disk 42 can rotate along with the transmission shaft 2, the grating disk 42 is provided with a plurality of light transmitting areas at intervals along the rotation direction, the light emitting device 41 and the light receiving device 43 are arranged along the axial direction of the transmission shaft 2, the light emitting device 41 and the light receiving device 43 are respectively arranged at two sides of the grating disk 42, and the light receiving device 43 can receive the light signal from the light emitting device 41 through the light transmitting areas.
The camera 1 may include, among other things, a PCB board, a lens, a holder and color filter, a sensor, and other components. In a possible implementation manner, the working principle of the camera 1 may be: the scenery shot by the camera 1 projects the generated optical image onto the sensor through the lens, then the optical image is converted into an electric signal, the electric signal is converted into a digital signal, the digital signal is processed and then sent to the mobile terminal processor for processing, and finally the digital signal is converted into an image which can be seen on the screen of the mobile terminal. The concrete component of camera 1 can increase or reduce according to camera 1's function, the embodiment of the utility model provides a do not restrict to this.
The transmission shaft 2 fixedly connected with the camera 1 can be a solid shaft, and the transmission shaft 2 can also be a hollow shaft under the condition that the strength is ensured. The diameter of transmission shaft 2 is determined by the size of other parts that are connected with transmission shaft 2 cooperation, and the embodiment of the utility model does not limit this. It should be noted that the transmission shaft 2 may be one of rigid plastics made of phenolic plastics, polyurethane plastics, epoxy plastics, unsaturated polyester plastics, silicone resins, acryl resins, and the like, and compared with a metal material, the plastic material has a lower density and lighter overall mass, and the weight of the transmission shaft 2 may be reduced, and the weight of the mobile terminal may be reduced to a certain extent.
It should be noted that, in a possible implementation manner, the driving mechanism 3 drives the camera 1 to extend and retract through the transmission shaft 2, so that the amount of extension and retraction of the camera 1 can be indirectly measured by monitoring the rotation amount of the transmission shaft 2. In another possible implementation manner, the driving mechanism 3 drives the camera 1 to rotate through the transmission shaft 2, so that the rotation amount of the camera 1 can be indirectly measured by monitoring the rotation amount of the transmission shaft 2. Alternatively, the camera 1 can be extended, retracted and rotated simultaneously by using one driving mechanism 3, and the rotation amount and the extension amount of the camera 1 can be indirectly measured by monitoring the rotation amount of the transmission shaft 2. Specifically, above-mentioned transmission shaft 2 can be for the drive shaft of being connected with the cooperation of the rotatory actuating mechanism 3 of drive camera 1, also can be for the drive shaft of being connected with the cooperation of the flexible actuating mechanism 3 of drive camera 1, or can be for the drive shaft of being connected with the cooperation of the rotatory actuating mechanism 3 that drives camera 1 and stretch out and draw back simultaneously, the embodiment of the utility model provides a do not limit to this.
The utility model discloses it is right to drive 1 rotation of camera for the example through transmission shaft 2 with actuating mechanism 3 the embodiment of the utility model provides a scheme introduce, other unexplained embodiments are because the principle is similar, for avoiding repetitiveness, the embodiment of the utility model provides an it will not be repeated here again to this.
As shown in fig. 2, the angle monitoring assembly 4 includes a light emitting element 41, a grating disk 42 and a light receiving element 43, wherein the grating disk 42 may be composed of a light transmitting plate and a non-light transmitting plate, and the specific material is determined according to the shape of a plurality of light transmitting areas provided on the grating disk 42, which is not limited by the embodiment of the present invention. The grating disk 42 is provided with a plurality of light transmission areas at intervals along the rotation direction, and the area occupied by each light transmission area in the grating disk 42 is equal, so that the time spent in passing through each light transmission area is equal under the condition that the rotation speed of the transmission shaft 2 is not changed. It should be noted that, a mounting hole may be formed in the center of the grating disk 42, the transmission shaft 2 passes through the mounting hole and is fixedly connected to the grating disk 42, and further when the transmission shaft 2 controls the camera 1 to start rotating, the grating disk 42 fixedly connected to the transmission shaft 2 also rotates along with the transmission shaft 2, when the light-transmitting area on the grating disk 42 is aligned with the light-emitting element 41, light is received by the light-receiving element 43 through the grating disk 42, when the light-transmitting area on the grating disk 42 and the light-emitting element are offset, the light emitted by the light-emitting element 41 does not pass through the grating disk 42, the light-receiving element 43 cannot receive light from the light-emitting element 41, and further, the rotating angle of the rotating shaft can be determined by the number of times the light is received by the light.
The light emitting element 41 is located on one side of the axis of the transmission shaft 2, the light emitting element 41 may be one of elements that can emit light, such as a laser diode and a light emitting diode, and the specific selection of the light emitting element 41 is determined according to specific requirements, which is not limited by the embodiment of the present invention.
In addition, the angle detection assembly 4 may further include a lens 44, the light emitting element 41 and the lens 44 being disposed along the axial direction of the drive shaft 2, and the lens 44 being located between the light emitting element 41 and the grating disk 42. In order to make the light emitted from the light emitting element 41 pass through the light transmitting area as much as possible, so that the light signal received by the light receiving element 43 is strong enough, the lens is preferably a focusing lens, such as a convex lens, so that the light emitted from the light emitting element 41 can be collimated or parallel light perpendicular to the grating disk 42 can be adjusted, so that more light can pass through the light transmitting area, thereby further improving the detection effect and the detection accuracy.
It should be noted that the light emitting element 41 and the light receiving element 43 included in the angle monitoring assembly 4 are disposed along the axial direction of the transmission shaft 2, so that light emitted from the light emitting element 41 can be ensured to pass through the light transmitting area and be received by the light receiving element 43 after being focused or collimated by the lens 44. The light receiving element 43 may be one of materials that convert an optical signal into an electrical signal, such as a photosensitive material. Thus, when the light-transmitting area on the grating disk 42 is aligned with the light-emitting element 41, light passes through the grating disk 42, and the light-receiving element 43 can receive a light signal, and when the light-transmitting area on the grating disk 42 is offset from the light-emitting element 41, the light emitted by the light-emitting element 41 does not pass through the grating disk 42, and the light-receiving element 43 cannot receive the light signal, so that the rotating angle of the rotating shaft can be determined by the number of times the light-receiving element 43 receives the light signal.
Alternatively, as shown in fig. 3 and 4, the plurality of light-transmitting regions 421 are distributed in a circumferential array around the center of the grating disk 42.
Specifically, as shown in fig. 3, in one possible implementation, a plurality of through holes may be formed in the non-light-transmitting grating disk 42, and then a plurality of light-transmitting areas 421 are formed at the through holes, the light-transmitting areas 421 may be square holes, circular holes, or holes of other shapes, which are not specifically limited in this embodiment, wherein, in the plurality of light-transmitting areas 421, the distance between two adjacent light-transmitting areas 421 is equal, and the distance between two adjacent light-transmitting areas 421 is determined according to the detection accuracy of the angle detection assembly, which is not specifically limited in the present embodiment, as shown in fig. 4, in another possible implementation, the grating disk 42 may also be formed by bonding a plurality of light-transmitting plates and a plurality of non-light-transmitting plates 421, and further, in the plurality of light-transmitting areas 421, as a plurality of light-transmitting plates 421 are formed by forming a plurality of light-transmitting areas 421, in this embodiment, one non-light-transmitting plate is bonded between two adjacent light-transmitting plates, wherein, when the light rays from two sides of each light-transmitting plate α and two sides of each non-transmitting plate correspond to two sides of the non-transmitting plate, and the light-transmitting plate 20, the light-transmitting plate 42 and the light-receiving elements 20, the light-transmitting plate 42 can pass through the light-transmitting plate 42, and the light-receiving area, and the light-transmitting plate 42 can pass through the light-transmitting plate 42, and the light-transmitting plate can pass through the light-transmitting plate, and the light-receiving area, and the light-transmitting plate can be determined by rotating shaft, and the rotating shaft can be equal rotating angle of the rotating shaft, and the rotating angle of the light-transmitting plate can be equal, and the rotating shaft can be determined according to the rotating angle of the rotating shaft, and the rotating shaft can be equal, when the rotating shaft, and the rotating angle of the rotating shaft can be equal, and the rotating angle of the rotating shaft can.
Optionally, the angle monitoring assembly 4 further comprises a lens 44, the light emitting element 41 and the lens 44 are arranged along the axial direction of the transmission shaft 2, and the lens 44 is located between the light emitting element 41 and the grating disk 42.
Optionally, the lens 44 is a focusing lens.
It should be noted that the light emitting element 41 is generally a point light source, and the emitted light is generally radial, and most of the radial light cannot pass through the light transmitting region 421 of the grating disk 42 along the axial direction of the transmission shaft 2. Based on this, preferably, the lens 44 may be a focusing lens (such as a convex lens), and the focusing lens is one of convex lenses, and the focusing action of the lens 44 may enable light to pass through the light-transmitting region 421 of the grating disk 42 along the axial direction of the transmission shaft 2, or parallel light may be generated by the lens 44, and the parallel light may simultaneously pass through the light-transmitting regions 421 of the grating disk 42 along the axial direction of the transmission shaft 2.
Optionally, as shown in fig. 2, the angle monitoring assembly 4 further includes a fixed grating 45, the fixed grating 45 and the light receiving element 43 are disposed along the axial direction of the transmission shaft 2, the fixed grating 45 is located between the grating disc 42 and the light receiving element 43, a through hole is formed in the fixed grating 45, and light emitted by the light emitting element 41 can be transmitted to the light receiving element 43 through the light transmitting region 421 and the through hole.
Specifically, when the area of the light-transmitting area 421 on the grating disk 42 is large, the light path can be guided by the through hole formed on the fixed grating 45, and the light emitted by the light-emitting element 41 can be transmitted to the light-receiving element 43 through the light-transmitting area 421 and the through hole, so that the light path can be accurately received by the light-receiving element 43 under the guiding and converging effects of the fixed grating 45, and the influence on the monitoring accuracy of the angle monitoring component 4 caused by the fact that the light-receiving element 43 cannot receive the light when the light path is deviated is avoided.
Alternatively, as shown in fig. 2, the light receiving element 43 includes a first light receiving element 431 and a second light receiving element 432, the through holes include a first through hole and a second through hole, the first light receiving element 431 corresponds to the first through hole, and the second light receiving element 432 corresponds to the second through hole.
Specifically, since the light receiving element 43 includes the first light receiving element 431 and the second light receiving element 432, the first light receiving element 431 corresponds to the first through hole, and the second light receiving element 432 corresponds to the second through hole, the two light receiving elements 43 can receive light simultaneously, and further two electrical signals can be obtained, if the two electrical signals are the same, it indicates that the angle monitoring is correct, if the two electrical signals are different, it indicates that the angle monitoring is wrong, in this case, the rotation is stopped, and the camera 1 is prevented from being stuck outside the mobile terminal housing when the camera cannot be retracted due to inaccurate rotation. Of course, in practical applications, the light receiving element 43 may further include a third light receiving element 43, a fourth light receiving element 43, and the like, and the number of the light receiving elements 43 is not particularly limited in the present invention.
Optionally, the camera module further includes a shaping circuit 5, and the shaping circuit 5 is electrically connected to the light receiving element 43.
Specifically, the shaping circuit 5 may perform digital-to-analog conversion on the optical signal received by the light receiving element 43, and the shaping circuit 5 may be connected to an amplifier for amplifying the digital signal in the circuit and further amplifying the digital signal by the amplifier. For example, when the light-transmitting area 421 on the grating disk 42 is aligned with the light-emitting element 41, light passes through the grating disk 42, and the light-receiving element 43 can receive the light signal, when the light-transmitting area 421 on the grating disk 42 is offset from the light-emitting element 41, the light emitted by the light-emitting element 41 does not pass through the grating disk 42, and the light-receiving element 43 cannot receive the light signal, in this process, a parameter of an electrical signal converted from the light signal is also changed, and then the rotation of the grating disk 42 can be monitored through the change of the electrical signal. For example, in a possible implementation manner, when the light receiving element 43 receives light, the light signal may be converted into an electrical signal 1, when the light receiving element 43 does not receive the light signal, the electrical signal in this state is recorded as 0, along with the rotation of the transmission shaft 2, many 1, 0, 1, 0 data may be recorded, and if the counting is performed in binary, the recorded binary data may correspond to the rotation angle, and how much the transmission shaft 2 rotates may be detected. If the recorded data is 10101010, it can be monitored that the drive shaft 2 has rotated 170 °.
Optionally, the camera module further includes a fixing member, the fixing member is provided with a shading cavity, the light emitting element 41, the lens 44, the grating disc 42 and the light receiving element 43 are all located in the shading cavity, and the fixing member is sleeved on the transmission shaft 2, so that the interference of the angle monitoring assembly 4 by external light can be avoided, and the measurement accuracy is improved.
Specifically, since the light emitting element 41, the lens 44, the grating disk 42 and the light receiving element 43 can all be located in the light shielding cavity, the angle monitoring assembly 4 can be mass produced, and the production efficiency of the mobile terminal is improved to some extent. In addition, the fixing piece can be one of rigid plastics made of phenolic plastics, polyurethane plastics, epoxy plastics, unsaturated polyester plastics, organic silicon resin, acryl resin and the like, compared with metal materials, the plastic materials are low in density, the total weight is light, the fixing weight can be reduced, the weight of the mobile terminal can be reduced to a certain degree, and the light weight of the mobile terminal is facilitated to be realized.
Alternatively, the driving mechanism 3 may include a first gear 31, a second gear 32, and a driving motor 33; the driving motor 33 is fixedly connected with the first gear 31, the transmission shaft 2 is fixedly connected with the second gear 32, the first gear 31 is meshed with the second gear 32, and the driving motor 33 drives the transmission shaft 2 to rotate through the first gear 31 and the second gear 32.
Particularly, because the output shaft of driving motor 33 and first gear 31 fixed connection, first gear 31 and the meshing of second gear 32, transmission shaft 2 one end is passed second gear 32 and is connected with camera 1, and fix on second gear 32, consequently, rotation through driving motor 33, can drive first gear 31 and rotate, and then drive second gear 32 and rotate, the rotation of drive shaft 2 is driven by the rotation of second gear 32, finally realize camera 1's rotation, and then realize camera 1's rotation function.
The embodiment of the utility model provides a still disclose a mobile terminal, this mobile terminal includes foretell camera module.
From the above technical scheme, the utility model discloses camera module includes camera 1, transmission shaft 2 and angle monitoring subassembly 4, when transmission shaft 2 control camera 1 begins to rotate, grating disc 42 with transmission shaft 2 fixed connection also can rotate along with transmission shaft 2, when light transmission area 421 on grating disc 42 aligns with light-emitting component 41, light passes through grating disc 42, received by light-receiving component 43, when light transmission area 421 and light-emitting component 41 on grating disc 42 take place to squint, the light that light-emitting component 41 emitted can not pass grating disc 42, light-receiving component 43 can not receive the light that comes from light-emitting component 41 promptly, and then can confirm the angle that the pivot was rotated through the number of times that light-receiving component 43 received light. Like this, the angle that monitoring camera 1 that can be accurate through angle monitoring subassembly 4 rotated after stretching out, and then conveniently control camera 1 and accurately revolve, block when avoiding camera 1 can't retract outside the terminal housing, and then guarantee camera 1's normal operating.
Besides, the light receiving element 43 includes a first light receiving element 431 and a second light receiving element 432, a first through hole and a second through hole are formed in the fixed grating 45, the first light receiving element 431 corresponds to the first through hole, and the second light receiving element 432 corresponds to the second through hole, so that the two light receiving elements 43 can receive light simultaneously, and further two electrical signals can be obtained, if the two electrical signals are the same, the angle monitoring is free, if the two electrical signals are different, the angle monitoring is free from error, under the condition, the rotation is stopped, and the situation that the camera 1 is blocked outside the mobile terminal shell when the camera cannot retract due to inaccurate rotation is avoided.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or terminal equipment comprising the element.
The technical solution provided by the present invention is described in detail above, and the principle and the implementation of the present invention are explained by applying specific examples, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, and in summary, the content of the present specification should not be understood as the limitation of the present invention.
Claims (10)
1. A camera module is characterized by comprising a camera, a transmission shaft, a driving mechanism and an angle monitoring assembly, wherein,
the camera is connected with the transmission shaft;
the driving mechanism drives the camera to extend and/or rotate through the transmission shaft;
the angle monitoring assembly comprises a light-emitting element, a grating disc and a light-receiving element, the grating disc is fixedly connected with the transmission shaft, the grating disc can rotate along with the transmission shaft, and a plurality of light-transmitting areas are arranged on the grating disc at intervals along the rotation direction;
the light emitting element and the light receiving element are arranged along the axial direction of the transmission shaft, the light emitting element and the light receiving element are respectively arranged on two sides of the grating disc, and the light receiving element can receive light signals from the light emitting element through the light transmitting area.
2. The camera module of claim 1, wherein the plurality of light transmissive regions are arranged in a circumferential array around a center of the grating disk.
3. The camera module of claim 1, wherein the angle monitoring assembly further comprises a lens, the light emitting element and the lens are disposed along an axial direction of the drive shaft, and the lens is located between the light emitting element and the grating disk.
4. The camera module of claim 3, wherein the lens is a focusing lens.
5. The camera module according to claim 1, wherein the angle monitoring assembly further includes a fixed grating, the fixed grating and the light receiving element are disposed along an axial direction of the transmission shaft, the fixed grating is located between the grating disk and the light receiving element, the fixed grating is provided with a through hole, and light emitted from the light emitting element can be transmitted to the light receiving element through the light transmitting region and the through hole.
6. The camera module according to claim 5, wherein the light receiving element includes a first light receiving element and a second light receiving element, the through hole includes a first through hole and a second through hole, the first light receiving element corresponds to the first through hole, and the second light receiving element corresponds to the second through hole.
7. The camera module according to claim 1, further comprising a shaping circuit electrically connected to the light receiving element.
8. The camera module of claim 1, further comprising a fixture;
the fixing piece is provided with a shading cavity, the light-emitting element, the grating disc and the light-receiving element are all located in the shading cavity, and the fixing piece is sleeved on the transmission shaft.
9. The camera module of claim 1, wherein the drive mechanism includes a drive motor, a first gear and a second gear;
the driving motor is fixedly connected with the first gear, the transmission shaft is fixedly connected with the second gear, the first gear is meshed with the second gear, and the driving motor drives the transmission shaft to rotate through the first gear and the second gear.
10. A mobile terminal, characterized in that it comprises a camera module according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921413093.5U CN210351325U (en) | 2019-08-28 | 2019-08-28 | Camera module and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921413093.5U CN210351325U (en) | 2019-08-28 | 2019-08-28 | Camera module and mobile terminal |
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| Publication Number | Publication Date |
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| CN210351325U true CN210351325U (en) | 2020-04-17 |
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| CN201921413093.5U Active CN210351325U (en) | 2019-08-28 | 2019-08-28 | Camera module and mobile terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113923323A (en) * | 2020-07-09 | 2022-01-11 | 维沃移动通信有限公司 | Camera module, electronic equipment and control method and control device thereof |
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2019
- 2019-08-28 CN CN201921413093.5U patent/CN210351325U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113923323A (en) * | 2020-07-09 | 2022-01-11 | 维沃移动通信有限公司 | Camera module, electronic equipment and control method and control device thereof |
| CN113923323B (en) * | 2020-07-09 | 2023-01-31 | 维沃移动通信有限公司 | Electronic device, control method thereof and control device thereof |
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