CN116132774A - Camera focusing module, focusing method, terminal equipment and medium - Google Patents
Camera focusing module, focusing method, terminal equipment and medium Download PDFInfo
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- CN116132774A CN116132774A CN202211218571.3A CN202211218571A CN116132774A CN 116132774 A CN116132774 A CN 116132774A CN 202211218571 A CN202211218571 A CN 202211218571A CN 116132774 A CN116132774 A CN 116132774A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Lens Barrels (AREA)
- Studio Devices (AREA)
Abstract
The invention relates to the technical field of shooting, in particular to a shooting focusing module, a focusing method, terminal equipment and a medium, wherein the shooting focusing module comprises a shell, a lens, an image circuit board, an image chip, a driving assembly, a position detection assembly and a controller; the position detection assembly comprises two first position sensors and first position magnets, the two first position sensors are sequentially arranged on the movable part along the extending direction of the optical axis, the first position magnets are arranged on the shell, the first position magnets are correspondingly arranged with the first position sensors, the first position magnets comprise at least three magnetic pole groups, at least three magnetic pole groups are sequentially stacked along the extending direction of the optical axis, and the magnetic poles of adjacent magnetic pole groups facing the position sensors are opposite; the invention can realize quick and accurate focusing, realize focusing closed-loop control and improve focusing precision and stability.
Description
Technical Field
The present invention relates to the field of imaging technologies, and in particular, to an imaging focusing module, a focusing method, a terminal device, and a medium.
Background
In recent years, portable image focusing modules with auto focusing function are popular, and become the standard function of most of photographing devices. When the shot objects are at different distances, the automatic focusing function can effectively improve the resolution of the closer shot objects in the image and improve the photo quality in the close shooting. On the other hand, the auto-focusing function can blur the object image at other distances, and can more particularly show the shot object in the photo.
The existing partial camera focusing module has a large-stroke focusing function, but in the focusing process, the focusing time is slow due to the large stroke; meanwhile, the existing camera focusing module mostly adopts single-point detection for determining the position of the image chip, and the difference of identification information between the positions is not large, and the correct position of the image chip cannot be accurately determined only by fine and single information, so that the focusing precision is low and the effect of the shot image is poor when focusing is performed.
Disclosure of Invention
The invention aims to provide an image pickup focusing module, a focusing method, terminal equipment and a medium, which can realize quick and accurate focusing, realize focusing closed-loop control and improve focusing precision and stability.
In order to achieve the above object, the present invention provides an imaging focusing module, including:
the optical axis measuring device comprises a shell, a measuring device and a measuring device, wherein a movable channel is arranged in the shell along the extending direction of an optical axis;
the lens is arranged on the shell and is positioned at one end of the movable channel;
an image circuit board having a movable portion and an immovable portion, the immovable portion being connected with the housing;
an image chip mounted to the movable portion, the image chip being located in the movable channel;
the driving component is connected with the movable part and is used for driving the image chip to move along the extending direction of the optical axis in the movable channel;
the position detection assembly comprises two first position sensors and first position magnets, the two first position sensors are sequentially arranged on the movable part along the extending direction of the optical axis, the first position magnets are arranged on the shell, the first position magnets are correspondingly arranged with the first position sensors, the first position magnets comprise at least three magnetic pole groups, at least three magnetic pole groups are sequentially stacked along the extending direction of the optical axis, and the magnetic poles of adjacent magnetic pole groups facing the position sensors are opposite;
And the controller is connected with the image circuit board.
Preferably, the position detecting assembly further includes a second position sensor and a second position magnet, the second position sensor is mounted on the movable portion, the second position magnet is mounted on the housing, and the second position sensor is disposed corresponding to the second position magnet.
Preferably, a surface of the second position magnet facing the second position sensor is a single magnetic pole and is arranged obliquely along the direction in which the optical axis extends.
Preferably, the second position magnet includes two magnetic pole groups, the two magnetic pole groups are stacked in sequence along the extending direction of the optical axis, and the magnetic poles of the adjacent magnetic pole groups facing the second position sensor are opposite.
Preferably, the photographing module further comprises a lens seat, the lens seat is mounted at one port of the movable channel, and a mounting hole coaxial with the movable channel is formed in the lens seat; the lens is mounted in the mounting hole.
Preferably, the camera focusing module further comprises a heat dissipation seat, the heat dissipation seat is provided with a support tube coaxial with the movable channel, the heat dissipation seat is covered on the shell, the support tube is inserted in the movable channel, and the lens seat is mounted on the support tube.
Preferably, the camera focusing module further comprises a radiating tube coaxial with the movable channel, one end of the radiating tube is connected with the image circuit board, and one end of the radiating tube is sleeved outside the image chip.
Preferably, the other end of the radiating pipe is sleeved at one end of the supporting pipe.
Preferably, the camera focusing module further comprises a chip seat, the chip seat is located in the movable channel, one end of the chip seat is connected with the movable portion, and one end of the chip seat is sleeved outside the image chip.
Preferably, the camera focusing module further comprises a sensor circuit board, wherein the sensor circuit board is arranged along the side wall of the chip seat, one end of the sensor circuit board is connected with the movable part, and the other end of the sensor circuit board is connected with the chip seat; the first position sensor is mounted on the sensor circuit board.
Preferably, the driving assembly comprises a driving magnet and a driving coil, the driving magnet is mounted on the shell, the driving coil is mounted on the chip seat, and the driving coil is electrically connected with the image circuit board.
Preferably, the driving coil is wound on the chip carrier along the circumferential direction of the optical axis.
Preferably, the camera focusing module further comprises a magnet seat, wherein the magnet seat is arranged on the inner wall of the shell, and is provided with a first side wall and a second side wall adjacent to the first side wall; the first side wall is provided with a butt joint hole matched with the driving magnet, and the first position magnet is arranged on the second side wall.
Preferably, the driving coil is provided with a first reference surface, the first reference surface is perpendicular to the optical axis, and the first reference surface is flush with the bottom surface of the driving coil; the positional relationship between the driving coil and the first position sensor satisfies:
|50％L 1 －L 2 |＜20％L 1 ；
wherein L is 1 L is the minimum distance between the top end of the driving coil and the first reference surface 2 Is the minimum distance between the center of the first position sensor and the first reference plane.
Preferably, the image circuit board is provided with a relay, and the relay is electrically connected with the driving coil;
when the driving coil is powered off, two ends of the driving coil can be conducted through the relay.
Preferably, the chip holder is provided with a butt-joint side wall, two sides of the butt-joint side wall are provided with sliding grooves extending along the extending direction of the optical axis, and a plurality of balls which are stacked in sequence along the extending direction of the optical axis are arranged in the sliding grooves; the chip seat slides relative to the shell through the ball.
Preferably, the image circuit board has a second reference surface, the second reference surface is perpendicular to the extending direction of the optical axis, the second reference surface is flush with the top surface of the image circuit board, a part of the balls are located above the second reference surface, and a part of the balls are located below the second reference surface.
Preferably, the chip holder is provided with a repulsive side wall facing the driving magnet, and the repulsive side wall is provided with a repulsive magnet which is arranged corresponding to the driving magnet.
Preferably, the camera focusing module further comprises a bottom cover, the bottom cover is buckled at the bottom end of the shell, and a through hole for the image circuit board to extend out is formed in the side wall of the bottom cover.
Preferably, the image circuit board further includes a plurality of bending parts, the plurality of bending parts are stacked and connected in sequence along the extending direction of the optical axis, the bending part at the top end is connected with the movable part, and the bending part at the bottom end is connected with the immovable part.
The invention also provides a shooting focusing method, which comprises the following steps:
acquiring a target focal length of a photographic object;
determining target position information of the image chip according to the target focal length;
Acquiring first position information of the image chip; acquiring second position information of the image chip;
determining real-time position information of the image chip according to the first position information and the second position information;
confirming whether the real-time position information is matched with the target position information, if so, responding to a shooting instruction of a user, and executing shooting by using the target focal length; if not, carrying out the next step;
determining the moving stroke and moving direction of the image chip according to the first real-time position information and the target position information, and sending a driving electric signal;
repeating the above steps.
Preferably, the value a of the first position information and the value B of the second position information periodically change along with the movement of the image chip, and the changes of a and B satisfy:
A＝Nsinα；
B＝Nsin(α+π/2)；
wherein N is a non-zero real number.
Preferably, the moving track of the image chip is divided into a plurality of subintervals corresponding to A and B, the subinterval of the image chip at a certain moment is determined according to A and B at a certain moment, and the real-time position information of the image chip is determined according to the subinterval.
Preferably, determining the real-time position information of the image chip further comprises the steps of:
Acquiring third position information of the image chip;
and determining the real-time position information of the image chip according to the first position information, the second position information and the third position information.
Preferably, the value C of the third position information changes monotonically with the image chip activity.
The invention also provides a terminal device comprising a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the focusing method according to any one of the above when executing the computer program.
The invention also provides a computer readable storage medium comprising a stored computer program, wherein the computer program when run controls a device in which the computer readable storage medium is located to perform a focusing method according to any one of the above.
The embodiment of the invention has the following technical effects:
in the focusing process of the camera module, as the adjacent first position magnets are provided with a plurality of magnetic pole groups, the magnetic poles of the adjacent magnetic pole groups facing the first position sensor are different, and when the first position sensor passes through each magnetic pole, the reading of the first position sensor is changed greatly, so that the image chip can be positioned accurately, and further, the accurate control is realized; meanwhile, two first position sensors are arranged, and the further positioning can be performed through two large readings, so that the accuracy is further improved.
Drawings
The invention is explained in more detail below with the aid of the figures. The features shown in the drawings and/or described below are features of the invention as a whole and improve the invention accordingly, independently of the specific combination of features.
It should be noted that in different drawings, the same reference numerals indicate the same or substantially the same components.
FIG. 1 is a schematic view of a camera focusing module according to a preferred embodiment of the present invention;
FIG. 2 is an exploded view of a preferred embodiment 1 of the present invention;
FIG. 3 is a top view of preferred embodiment 1 of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is an enlarged view at I of FIG. 4;
FIG. 6 is a B-B cross-sectional view of FIG. 3;
FIG. 7 is a cross-sectional view of C-C of FIG. 3;
FIG. 8 is a schematic view of the orientation of the first position sensor;
FIG. 9 is a top view of the image circuit board;
FIG. 10 is an exploded view of the preferred embodiment 2 of the present invention;
FIG. 11 is a vertical sectional view of preferred embodiment 2 of the present invention;
FIG. 12 is an enlarged view at E of FIG. 11;
FIG. 13 is a horizontal sectional view of preferred embodiment 2 of the present invention;
fig. 14 is an enlarged view at G of fig. 13;
FIG. 15 is a schematic view of an orientation of the second position sensor;
FIG. 16 is a schematic view of another orientation of the second position sensor;
Fig. 17 is a schematic structural view of a coil block according to a preferred embodiment 2 of the present invention;
fig. 18 is a flowchart of a focusing method of preferred embodiment 3 of the present invention;
FIG. 19 is a graph showing the variation of the values of the first position sensor according to the preferred embodiment 3 of the present invention;
FIG. 20 is a graph showing a change in value of the second position sensor according to the preferred embodiment 3 of the present invention;
fig. 21 is another numerical variation diagram of the second position sensor of the preferred embodiment 3 of the present invention.
Reference numerals illustrate:
100. an optical axis; 200. a first reference surface; 300. a second reference surface;
1. a housing; 2. a lens; 3. an image circuit board; 3a, a movable part; 3b, an immovable part; 3c, a bending part; 4. an image chip; 5. a drive assembly; 5a, driving a magnet; 5b, driving the coil; 6. a position detection assembly; 6a, a first position sensor; 6b, a first position magnet; 6c, a second position sensor; 6d, a second position magnet; 7. a lens base; 8. a heat dissipation seat; 8a, supporting the tube; 9. a heat radiating pipe; 10. a chip holder; 11. a sensor circuit board; 12. a magnet seat; 13. a ball; 14. a repelling magnet; 15. a bottom cover; 16. a coil base; 16a, a boss.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
The definitions of the front, rear, inner, outer, top and bottom are merely for convenience in describing the positional relationship or the connection relationship between the components of the image pickup focusing module according to the embodiments of the present application, and do not limit the embodiments of the present application.
It should be further noted that, for the same components in the embodiments of the present application, only one of the components or the components may be denoted by the reference numeral in the drawings, and it should be understood that the reference numerals are equally applicable to other same components or components.
Also, the term "comprising" does not exclude other elements or steps, and "a" or "an" does not exclude a plurality.
Furthermore, it should also be noted that, for any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the figures, a combination can still be continued between these technical features (or equivalents thereof) to obtain other embodiments of the present application not directly mentioned herein.
In addition, it should also be understood that the terms "first," "second," etc. are used herein to describe various information, but such information should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the present application.
Example 1:
referring to fig. 1 to 9, a preferred embodiment 1 of the present invention provides an image focusing module, which includes a housing 1, a lens 2, an image circuit board 3, an image chip 4, a driving assembly 5, a position detecting assembly 6, and a controller, wherein the housing 1 is provided with a movable channel along an extending direction of an optical axis 100; the lens 2 is arranged on the shell 1, and the lens 2 is positioned at one end of the movable channel; the image circuit board 3 has a movable portion 3a and an immovable portion 3b, the immovable portion 3b being connected to the housing 1; the image chip 4 is mounted on the movable portion 3a, and the image chip 4 is located in the movable tunnel; the driving component 5 is connected with the movable part 3a and is used for driving the image chip 4 to move along the optical axis 100 in the moving channel; the controller is connected with the image circuit board 3;
as shown in fig. 4, 5 and 8, the position detecting assembly 6 includes two first position sensors 6a and a first position magnet 6b, the two first position sensors 6a are sequentially mounted on the movable portion 3a along the extending direction of the optical axis 100, the first position magnet 6b is mounted on the housing 1, the first position magnet 6b is disposed corresponding to the first position sensor 6a, and the first position magnet 6b includes at least three magnetic pole groups, at least three magnetic pole groups are sequentially stacked along the direction of the optical axis 100, and magnetic poles of adjacent magnetic pole groups facing the position sensors are opposite.
Specifically, during focusing, the driving component 5 drives the movable part 3a of the image circuit board 3, and then drives the image chip 4 to move along the movable channel, so that the relative distance between the image chip 4 and the lens 2 is changed, and focusing is realized; and the two first position sensors 6a can move along the extending direction of the optical axis 100 along with the movable part 3a, and due to the first position magnets 6b, the two first position sensors 6a change along with the movement, the strength of the sensed magnetic field changes, and the position of the image chip 4 is further determined, so that the accurate control of the image chip 4 is facilitated. The multi-pole first position magnet 6b and the two first position sensors 6a are adopted, the reading change of the first position sensors 6a is large, the image chip 4 is conveniently and accurately positioned, and further accurate control is realized; meanwhile, two first position sensors 6a are arranged, and further positioning can be performed through two large-change readings, so that accuracy is further improved.
Referring to fig. 4 and 6, in some preferred embodiments of the present invention, the camera focusing module further includes a chip holder 10, the chip holder 10 is located in the movable channel, one end of the chip holder 10 is connected to the movable portion 3a, and one end of the chip holder 10 is sleeved on the image chip 4. Therefore, the chip holder 10 can be conveniently installed and fixed by other components, the unordered installation of the components on the movable part 3a is avoided, and the ordered assembly of the inside of the camera focusing module is ensured.
Referring to fig. 2 and 4, in some preferred embodiments of the present invention, the camera focusing module further includes a sensor circuit board 11, the sensor circuit board 11 is disposed along a side wall of the chip carrier 10, one end of the sensor circuit board 11 is connected to the movable portion 3a, and the other end of the sensor circuit board 11 is connected to the chip carrier 10; the first position sensor 6a is mounted to the sensor circuit board 11. In this way, the sensor circuit board 11 can be used as an extension part of the image circuit board 3, the sensor circuit board 11 is welded with a bonding pad on the movable part 3a of the image circuit board 3, the sensor circuit board 11 is arranged in a direction parallel to the optical axis 100, the installation of the first position sensor 6a can be facilitated, the subsequent expansion of the second position sensor 6c and other similar sensors is also facilitated, the excessive extension or deformation of the image circuit board 3 is avoided, the movement of the image chip 4 along the optical axis 100 is ensured, the inclination of the image chip 4 is avoided, and the focusing precision is further influenced.
Referring to fig. 2, in some preferred embodiments of the present invention, the driving assembly 5 includes a driving magnet 5a and a driving coil 5b, the driving magnet 5a is mounted on the housing 1, the driving coil 5b is mounted on the chip carrier 10, and the driving coil 5b is electrically connected to the image circuit board 3. Specifically, the driving coil 5b is energized through the image circuit board 3, interacts with the driving magnet 5a, and further drives the movable part 3a to move along the optical axis 100, and controls the moving speed and direction of the chip carrier 10 by changing the magnitude of the current of the driving coil 5 b; the drive coil 5b may also be connected to the sensor circuit board 11.
The existing driving coils 5b basically adopt a plurality of distributed arrangements, and are wound on the side wall of the coil seat 16 or the chip seat 10 along the direction of the optical axis 100, and the coil distribution and the winding method easily lead to uneven stress of the chip seat 10, thereby influencing focusing accuracy; in some preferred embodiments of the present invention, the driving coil 5b is wound around the chip carrier 10 along the circumferential direction of the optical axis 100. Specifically, the driving coil 5b is wound around the chip holder 10 along the circumferential direction of the optical axis 100, the driving coil 5b is integrated, power is uniformly supplied, the uniformity of stress is ensured, and the focusing accuracy is improved.
Referring to fig. 2 and 4, in some preferred embodiments of the present invention, the camera focusing module further includes a magnet seat 12, where the magnet seat 12 is disposed on an inner wall of the housing 1, and the magnet seat 12 has a first side wall and a second side wall adjacent to the first side wall; the driving magnet 5a is attached to the first side wall, and the first position magnet 6b is attached to the second side wall. So, first lateral wall and second lateral wall are adjacent to be set up, avoid driving magnetite 5a and first position magnetite 6b to be located same lateral wall, avoid magnetism between them to influence the atress of coil each other, guarantee the precision of focusing.
In some preferred embodiments of the present invention, the driving coil 5b has a first reference plane 200, the first reference plane 200 is perpendicular to the optical axis 100, and the first reference plane 200 is flush with the bottom surface of the driving coil 5 b; the positional relationship of the driving coil 5b and the first position sensor 6a satisfies:
|50％L 1 －L 2 |＜20％L 1 ；
Where L1 is the minimum distance between the tip of the driving coil 5b and the first reference surface, and L2 is the minimum distance between the center of the first position sensor 6a and the first reference surface 200.
Specifically, the height difference between the center of the first position sensor 6a and the center of the driving coil 5b is kept within a certain distance, so that the data read by the first position sensor 6a can be ensured to be the data of the center position of the driving coil 5b as much as possible, the follow-up accurate control is convenient, and the focusing accuracy is ensured.
In some preferred embodiments of the present invention, the image circuit board 3 is provided with a relay electrically connected to the driving coil 5 b;
when the driving coil 5b is turned off, both ends of the driving coil 5b can be turned on by the relay. Thus, when the module is not electrified and the closed-loop control is abnormal, the relay electrically connects the two ends of the driving coil 5b, so that the electromagnetic damping of the driving coil 5b relative to the driving magnet 5a is increased, the moving speed of the movable part 3a is reduced under the condition that the module is not electrified, the falling reliability is improved, and the unnecessary audible noise caused by the collision between the movable part 3a and the bottom cover 15 is reduced.
When the closing conductor and the magnetic pole move relatively, electromagnetic resistance is generated between the closing conductor and the magnetic pole, and the relative movement is blocked. This phenomenon can be explained by lenz's law: when the closed conductor and the magnetic pole perform the motion of cutting the magnetic induction line, the closed conductor can generate induction current or dynamic current due to the change of magnetic flux penetrated by the closed conductor. The magnetic field generated by this current may impede the relative movement of the two. The resistance is proportional to the physical quantity such as the magnetic induction intensity and the relative movement speed of the magnet.
In some preferred embodiments of the present invention, the chip holder 10 has a butt-joint sidewall, two sides of the butt-joint sidewall are provided with a sliding groove along the direction of the optical axis 100, and a plurality of balls 13 stacked in sequence along the extending direction of the optical axis 100 are arranged in the sliding groove; the chip carrier 10 slides relative to the housing 1 via the balls 13. In this way, the balls 13 can ensure the relative sliding of the chip carrier 10 and the housing 1, and ensure the focusing reliability.
In some preferred embodiments of the present invention, the image circuit board 3 has a second reference plane 300, the second reference plane 300 is perpendicular to the optical axis 100, and the second reference plane 300 is flush with the top surface of the image circuit board 3, a portion of the balls 13 is located above the second reference plane 300, and a portion of the balls 13 is located below the second reference plane 300.
Specifically, during the focusing process of the camera focusing module, the driving assembly 5 drives the image chip 4 to move in the movable channel, the chip seat 10 slides relative to the shell 1 through the balls 13, and along with the movement of the movable part 3a of the image circuit board 3, the reference surface moves along with the movement, the balls 13 are always positioned above the reference surface, and part of the balls are positioned below the reference surface, so that the stability of the image chip 4 in the moving process is ensured, and the problems of inclination of the image chip 4 and blurring of image corners caused by the assembly and the appearance tolerance of the flexible circuit board are solved when the image chip 4 moves.
Referring to fig. 2 and 4, in some preferred embodiments of the present invention, the camera focusing module further includes a bottom cover 15, the bottom cover 15 is fastened to the bottom end of the housing 1, and a through hole for the image circuit board 3 to extend is formed on a side wall of the bottom cover 15. In this way, the bottom cover 15 facilitates the disassembly and assembly of the camera focusing module.
Referring to fig. 7 and 9, in some preferred embodiments of the present invention, the image circuit board 3 further includes a plurality of bending portions 3c, the plurality of bending portions 3c are stacked one on another along the optical axis 100, the bending portion 3c at the top end is connected to the movable portion 3a, and the bending portion 3c at the bottom end is connected to the immovable portion 3 b. Specifically, the bending portion 3c has a certain deformability, and can expand and contract like a spring, so that the movable portion 3a can be moved conveniently, and meanwhile, the movable portion 3a is ensured to move along the direction of the optical axis 100, the inclination of the movable portion is avoided, and the focusing precision is further affected.
Further, the number of the bending parts 3c is singular and more than 2; each bending part 3c comprises an included angle, and the included angle of each bending part 3c is smaller than 60 degrees. Specifically, the bending part 3c is arranged in the singular, when the bending parts 3c at the upper end and the lower end are unfolded, the bending part 3c at the middle position can play a role in buffering, the inclined pulling force of the bending part 3c on the movable part 3a is reduced, and the focusing accuracy is ensured. Meanwhile, the included angle of the bending part 3c is not too large, so that the whole volume of the camera focusing module is easily increased.
Further, the bending part 3c adopts a layered design, and a certain gap is formed between each two layers. The layered design can reduce the spring constant of the deformed part in the displacement direction of the optical axis 100, and reduce the power consumption required in automatic focusing.
Further, the bending portion 3c may be composed of at least one piece of elastic material on one or more planes; the movable portion 3a of the image circuit board 3 may also be composed of a plurality of thread-like elastic materials; the controller may be located in the stationary structure of the present invention or external.
Example 2:
referring to fig. 10-17, a preferred embodiment 2 of the present invention provides an image focusing module based on embodiment 1, which includes a housing 1, a lens 2, an image circuit board 3, an image chip 4, a driving assembly 5, a position detecting assembly 6, and a controller, wherein the housing 1 is provided with a movable channel along an extending direction of an optical axis 100; the lens 2 is arranged on the shell 1, and the lens 2 is positioned at one end of the movable channel; the image circuit board 3 has a movable portion 3a and an immovable portion 3b, the immovable portion 3b being connected to the housing 1; the image chip 4 is mounted on the movable portion 3a, and the image chip 4 is located in the movable tunnel; the driving component 5 is connected with the movable part 3a and is used for driving the image chip 4 to move along the optical axis 100 in the moving channel; the controller is connected with the image circuit board 3;
The position detecting assembly 6 includes two first position sensors 6a and a first position magnet 6b, the two first position sensors 6a are sequentially mounted on the movable portion 3a along the extending direction of the optical axis 100, the first position magnet 6b is mounted on the housing 1, the first position magnet 6b is correspondingly disposed with the first position sensor 6a, the first position magnet 6b includes at least three magnetic pole groups, at least three magnetic pole groups are sequentially stacked along the direction of the optical axis 100, and adjacent magnetic pole groups face opposite magnetic poles of the position sensor.
Specifically, during focusing, the driving component 5 drives the movable part 3a of the image circuit board 3, and then drives the image chip 4 to move along the movable channel, so that the relative distance between the image chip 4 and the lens 2 is changed, and focusing is realized; and the two first position sensors 6a can move along the extending direction of the optical axis 100 along with the movable part 3a, and due to the first position magnets 6b, the two first position sensors 6a change along with the movement, the strength of the sensed magnetic field changes, and the position of the image chip 4 is further determined, so that the accurate control of the image chip 4 is facilitated. The multi-pole first position magnet 6b and the two first position sensors 6a are adopted, the reading change of the first position sensors 6a is large, the image chip 4 is conveniently and accurately positioned, and further accurate control is realized; meanwhile, two first position sensors 6a are arranged, and further positioning can be performed through two large-change readings, so that accuracy is further improved.
The surface of the first position magnet 6b facing the first position sensor 6a is of a multi-pole structure, so that the readings of the first position sensor 6a change periodically, and when the number of poles is enough or the measuring range exceeds a certain range, the image chip 4 is at two different positions, the readings of the first position sensor 6a are the same, and the readings are inaccurate and focusing is inaccurate. Therefore, on the image pickup focusing module facing a large stroke, initial correction is required by pushing the movable portion 3a to the lowest or highest position of the movable path, but this greatly prolongs the focusing time, affecting the focusing efficiency.
In some preferred embodiments of the present invention, the position detecting assembly 6 further includes a second position sensor 6c and a second position magnet 6d, the second position sensor 6c is mounted on the movable portion 3a, the second position magnet 6d is mounted on the housing 1, and the second position sensor 6c is disposed corresponding to the second position magnet 6 d. The reading of the second position sensor 6c is the unique determination value, so that the position range of the image chip 4 can be approximately determined, the readings of the two first position sensors 6a are also unique in the position range, the position of the image chip 4 can be accurately determined, and the image chip 4 can be accurately moved by utilizing the advantage of large change of the reading of the first position sensors 6a, so that the problem of large-stroke focusing is solved.
The first position sensor 6a and the second position sensor 6c are located on the same side wall of the chip carrier 10 or the coil carrier 16. The first position magnet 6b and the second position magnet 6d are located on the same side wall of the housing 1 or the magnet holder 12.
Referring to fig. 15, in some preferred embodiments of the present invention, the second position magnet 6d has a single magnetic pole on a surface facing the second position sensor 6c and is arranged obliquely along the extending direction of the optical axis 100. Thus, since the thickness of the second position magnet 6d is smaller at a higher position and the horizontal distance of the second position sensor 6c is longer, the reading of the second position sensor 6c will be smaller at a higher position; similarly, since the second position magnet 6d is thicker at a lower position and the horizontal distance of the second position sensor 6c is closer, the reading of the second position sensor 6c will be larger at a lower stroke; by reading the second position magnet 6d through the second position sensor 6c, the approximate position of the image chip 4 can be obtained when the module is started to focus, and the movable part 3a does not need to be pushed to the highest or lowest position for correction, so that the starting time is effectively shortened, and the focusing efficiency is improved.
Referring to fig. 16, in some preferred embodiments of the present invention, the second position magnet 6d includes two magnetic pole groups stacked in order along the optical axis 100, and adjacent magnetic pole groups face opposite magnetic poles of the second position sensor 6 c. When the image chip 4 moves to a position where the moving path is high, the reading of the second position sensor 6c is a relatively large positive number; when the image chip 4 moves to the position where the active channel is low, the reading of the second position sensor 6c is a relatively small negative number; when the image chip 4 gradually rises along the optical axis 100, the reading of the second position sensor 6c also rises forward, so as to reduce the start time of the module and improve the focusing efficiency.
In some preferred embodiments of the present invention, the photographing module further includes a lens holder 7, the lens holder 7 is mounted at one port of the movable channel, and the lens holder 7 is provided with a mounting hole coaxial with the movable channel; the lens 2 is mounted to the mounting hole. Thus, the lens seat 7 can facilitate the installation and the removal of the lens 2 and the assembly of the camera shooting focusing module.
Further, the housing 1 is close to one end of the lens 2, and a heat dissipation plate extends into the movable channel along the optical axis 100.
The existing camera focusing module often needs high-frequency focusing shooting, and under the condition of long-term use, the camera focusing module can generate heat, so that the inside is in a high-temperature state, the operation of components in the shell 1 is not facilitated, as shown in fig. 10-13, in some preferred embodiments of the invention, the camera focusing module further comprises a heat dissipation seat 8, the heat dissipation seat 8 is provided with a support tube 8a coaxial with a movable channel, the heat dissipation seat 8 is covered on the shell 1, the support tube 8a is inserted in the movable channel, and the lens seat 7 is installed on the support tube 8a. So, the inside gaseous heat of casing 1 can be along with stay tube 8a transfer to radiator block 8, and radiator block 8 is with the heating panel of heat transfer to casing 1, plays the effect of heat conduction, and casing 1 gives off the outside with the heat, accomplishes the heat dissipation, guarantees the reliability of the inside operation of casing 1.
The high-frequency focusing shooting of the shooting focusing module is carried out, wherein the pressure on the image chip 4 is the largest, and a large amount of heat can be generated under the condition that the image chip 4 runs at high strength, so that the subsequent focusing effect is influenced; referring to fig. 10-13, in some preferred embodiments of the present invention, the camera focusing module further includes a heat dissipating tube 9 coaxial with the active channel, one end of the heat dissipating tube 9 is connected to the image circuit board 3, and one end of the heat dissipating tube 9 is sleeved outside the image chip 4. Therefore, the heat radiating pipe 9 is connected with the heat conducting structure on the image circuit board 3, so that the image chip 4 positioned on the movable part can be effectively transferred to the heat radiating pipe 9 through heat conduction, and then transferred to the shell 1 through heat radiation and heat convection, and the temperature and noise of the image chip 4 are effectively reduced.
In addition, the image chip 4 may be transferred to the movable portion 3a through heat conduction, and the movable portion 3a transfers the conductive bent portion 3c to the bottom cover 15 through heat radiation and heat convection. Because the bending part 3c adopts a folding design, air flow can be induced in the automatic focusing process, the effect of heat convection is improved, and the temperature and noise of the image chip 4 are further reduced.
Further, as shown in fig. 11, the other end of the radiating pipe 9 is fitted over one end of the support pipe 8 a. Thus, the radiating pipes 9 and the supporting pipes 8a are arranged in a staggered manner, so that dust is effectively prevented from entering the inside of the radiating pipes 9 and above the image chip 4 from the outside of the radiating seat 8, and the dust pollution to the image chip 4 and the image definition influence probability are reduced.
Further, part of the casing 1, the heat dissipation seat 8 and the heat dissipation tube 9 are coated with a dark color coating, so that the efficiency of absorbing heat radiation is improved, and the temperature and noise of the image chip 4 are further reduced.
Referring to fig. 10 and 13, in some preferred embodiments of the present invention, the camera focusing module further includes a magnet seat 12, where the magnet seat 12 is disposed on an inner wall of the housing 1, and the magnet seat 12 has a first side wall and a second side wall adjacent to the first side wall; the first side wall is provided with a butt joint hole matched with the driving magnet 5a, and the first position magnet 6b is arranged on the second side wall. Specifically, the first side wall and the second side wall are adjacently arranged, so that the driving magnet 5a and the first position magnet 6b are prevented from being positioned on the same side wall, the influence of the magnetism of the driving magnet and the first position magnet on the stress of the coil caused by the mutual influence of the driving magnet and the first position magnet is avoided, and the focusing accuracy is ensured; meanwhile, the first side wall is provided with the butt joint hole, so that the magnet 5a can be conveniently driven to be embedded into the butt joint hole, the occupied space is reduced, and the volume of the camera shooting focusing module is reduced.
Referring to fig. 13 and 14, in some preferred embodiments of the present invention, the chip holder 10 has a repulsive side wall facing the driving magnet 5a, and the repulsive side wall is provided with a repulsive magnet 14, and the repulsive magnet 14 is disposed corresponding to the driving magnet 5 a. In this way, the repulsive magnet 14 and the driving magnet 5a repel each other, and the repulsive force presses the chip holder 10 or the coil holder 16 to the ball 13, so that the reliability of the camera focusing module is improved. The repulsive magnets 14 are provided in two numbers, and are provided in one-to-one correspondence with the two driving magnets 5a, respectively.
Referring to fig. 17, the chip carrier 10 is provided with coil carriers 16, and coils are wound around the outer wall of each of the coil carriers 16 in the circumferential direction of the optical axis 100. The coil housing 16 may facilitate the installation of the coil.
Further, the coil base 16 is provided with at least two bosses 16a; the two ends of the coil are fixed on the two bosses 16a in a one-to-one correspondence and are electrically connected with the sensor circuit board 11. The boss 16a can facilitate the fixation of the coil end, and also facilitate the connection of the coil end and the sensor circuit board 11, ensuring the connection stability and the internal wiring neatness.
Furthermore, the shell 1, the bottom cover 15 and the magnet seat 12 are composed of magnetic conductive materials, so that the influence on the camera focusing module caused by external magnets can be reduced, and the magnetic interference is reduced. In addition, the magnet is also convenient to assemble by adopting the magnetic conduction material, so that the assembly efficiency and the assembly precision are improved. Finally, the magnetic field intensity flowing through the coil can be enhanced by adopting the magnetic conduction material, and the power consumption of the camera shooting focusing module is reduced.
Example 3:
referring to fig. 18, preferred embodiment 3 of the present invention provides an image pickup focusing method based on embodiment 1 or 2, comprising the steps of:
s1, a controller acquires a target focal length of a photographic object;
s2, according to the target focal length, the controller determines target position information of the image chip 4 in the movable channel;
S3, one of the first position sensors 6a acquires first position information of the image chip 4 in the movable channel; the other first position sensor 6a acquires second position information of the image chip 4 in the movable channel;
s4, the controller determines real-time position information of the image chip 4 according to the first position information and the second position information;
s5, the controller confirms whether the real-time position information is matched with the target position information, if so, the controller responds to a shooting instruction of a user, and shooting is executed by using a target focal length; if not, carrying out the next step;
s6, the controller determines the moving stroke and moving direction of the image chip 4 in the moving channel according to the first real-time position information and the target position information, and sends an electric signal to the driving component 5;
s7, the driving component 5 drives the image chip 4 to move along the optical axis 100;
s8, repeating the steps S3-S5.
Further, referring to fig. 19, the value a of the first position information and the value B of the second position information periodically change with the movement of the image chip 4 in the movement channel, and the changes of a and B satisfy:
A＝Nsinα；
B＝Nsin(α+π/2)；
where N is a non-zero real number and α may be a non-zero angle.
In some preferred embodiments of the present invention, the active channel is divided into a plurality of subintervals corresponding to a and B, and the controller determines the subinterval of the image chip 4 at a certain moment according to a and B at a certain moment, and determines the real-time position information of the image chip 4 according to the subinterval.
Specifically, each subinterval corresponds to a value a and a value B, and when the first position sensor 6a moves to a certain subinterval along with the image chip 4, according to the readings a and B of the two first position sensors 6a at the moment, the position of the subinterval in the active channel can be determined, that is, the real-time position information of the image chip 4 is determined.
Further, referring to fig. 19, the surface of the first position magnet 6b facing the first position sensor 6a is configured with a multi-pole structure, so that the readings of the first position sensor 6a change periodically, when facing some image focusing modules with large-stroke focusing requirements, the image chip 4 is in two different sub-intervals, the readings of the first position sensor 6a are identical, which leads to inaccurate readings and inaccurate focusing. Therefore, on the image focusing module facing a large stroke, the step of adding before the step S2 is required:
and S11, the controller sends an electric signal to the driving component 5, and the driving component 5 drives the image chip 4 to move to the lowest or highest position of the movable channel for initial correction.
Although the camera focusing module can meet the requirement of large-stroke focusing through S11, the focusing efficiency is greatly reduced, so in some preferred embodiments of the present invention, the position detecting assembly 6 further includes a second position sensor 6c and a second position magnet 6d, the second position sensor 6c is mounted on the movable portion 3a, the second position magnet 6d is mounted on the housing 1, and the second position sensor 6c is disposed corresponding to the second position magnet 6 d; wherein, the liquid crystal display device comprises a liquid crystal display device,
The second position sensor 6c acquires third position information of the image chip 4 in the movable channel;
the controller determines real-time position information of the image chip 4 based on the first position information, the second position information, and the third position information.
Specifically, the third position information determined by the second position sensor 6c is a unique determination value, so that the position range of the image chip 4 can be approximately determined, and in the position range, the readings of the two first position sensors 6a are also unique, so that the position of the image chip 4 can be accurately determined, and the image chip 4 can be accurately moved by utilizing the advantage of large variation of the readings of the first position sensors 6a, thereby solving the problem of large-stroke focusing.
Referring to fig. 20 and 21, the value C of the third position information changes monotonically with the movement of the image chip 4 in the movement channel. Specifically, the third position sensor continuously increases its reading as the image chip 4 moves from the bottom to the top of the active channel; of course, a gradual decrease mode may be provided, as long as the reading of the third position sensor is kept unique.
The preferred embodiment of the present invention also provides a terminal device including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the focusing method according to any one of the above when executing the computer program; the specific implementation manner may refer to a method embodiment, and will not be described herein.
The preferred embodiment of the present invention further provides a computer readable storage medium, where the computer readable storage medium includes a stored computer program, and when the computer program runs, a device where the computer readable storage medium is controlled to execute the focusing method according to any one of the foregoing, and a specific implementation manner may refer to a method embodiment and will not be described herein.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer readable storage medium executable by a processor. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only memory (ROM), a random access memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Finally, it should be noted that: the foregoing examples are merely specific embodiments of the present application, and are not intended to limit the scope of the present application, but the present application is not limited thereto, and those skilled in the art will appreciate that while the foregoing examples are described in detail, the present application is not limited thereto. Any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or make equivalent substitutions for some of the technical features within the technical scope of the disclosure of the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (27)
1. A camera focusing module, comprising:
the optical axis measuring device comprises a shell, a measuring device and a measuring device, wherein a movable channel is arranged in the shell along the extending direction of an optical axis;
the lens is arranged on the shell and is positioned at one end of the movable channel;
an image circuit board having a movable portion and an immovable portion, the immovable portion being connected with the housing;
An image chip mounted to the movable portion, the image chip being located in the movable channel;
the driving component is connected with the movable part and is used for driving the image chip to move along the extending direction of the optical axis in the movable channel;
the position detection assembly comprises two first position sensors and first position magnets, the two first position sensors are sequentially arranged on the movable part along the extending direction of the optical axis, the first position magnets are arranged on the shell, the first position magnets are correspondingly arranged with the first position sensors, the first position magnets comprise at least three magnetic pole groups, at least three magnetic pole groups are sequentially stacked along the extending direction of the optical axis, and the magnetic poles of adjacent magnetic pole groups facing the position sensors are opposite;
and the controller is connected with the image circuit board.
2. The camera focusing module according to claim 1, wherein the position detecting assembly further comprises a second position sensor and a second position magnet, the second position sensor is mounted on the movable portion, the second position magnet is mounted on the housing, and the second position sensor is disposed corresponding to the second position magnet.
3. The image focusing module according to claim 2, wherein a face of the second position magnet facing the second position sensor is a single magnetic pole and is arranged obliquely along the direction in which the optical axis extends.
4. The camera focusing module according to claim 2, wherein the second position magnet includes two magnetic pole groups, the two magnetic pole groups are stacked in order along the extending direction of the optical axis, and the magnetic poles of the adjacent magnetic pole groups facing the second position sensor are opposite.
5. The camera focusing module according to claim 1, wherein the camera module further comprises a lens mount, the lens mount is mounted at one port of the movable channel, and a mounting hole coaxial with the movable channel is formed in the lens mount; the lens is mounted in the mounting hole.
6. The camera focusing module according to claim 5, further comprising a heat sink, wherein the heat sink is provided with a support tube coaxial with the movable channel, the heat sink is covered on the housing, the support tube is inserted in the movable channel, and the lens mount is mounted on the support tube.
7. The camera focusing module according to claim 6, further comprising a heat dissipating tube coaxial with the movable channel, wherein one end of the heat dissipating tube is connected to the image circuit board, and one end of the heat dissipating tube is sleeved outside the image chip.
8. The camera focusing module according to claim 7, wherein the other end of the radiating pipe is sleeved at one end of the supporting pipe.
9. The camera focusing module according to claim 1, further comprising a chip holder, wherein the chip holder is located in the movable channel, one end of the chip holder is connected to the movable portion, and one end of the chip holder is sleeved outside the image chip.
10. The camera focusing module according to claim 9, further comprising a sensor circuit board, wherein the sensor circuit board is disposed along a side wall of the chip carrier, one end of the sensor circuit board is connected to the movable portion, and the other end of the sensor circuit board is connected to the chip carrier; the first position sensor is mounted on the sensor circuit board.
11. The camera focusing module of claim 9, wherein the driving assembly comprises a driving magnet and a driving coil, the driving magnet is mounted on the housing, the driving coil is mounted on the chip carrier, and the driving coil is electrically connected with the image circuit board.
12. The camera focusing module of claim 11, wherein the driving coil is wound around the chip carrier along a circumferential direction of the optical axis.
13. The camera focusing module of claim 11, further comprising a magnet mount disposed on an inner wall of the housing, the magnet mount having a first sidewall and a second sidewall adjacent to the first sidewall; the first side wall is provided with a butt joint hole matched with the driving magnet, and the first position magnet is arranged on the second side wall.
14. The camera focusing module of claim 11, wherein the driving coil has a first reference surface, the first reference surface is perpendicular to the optical axis, and the first reference surface is flush with a bottom surface of the driving coil; the positional relationship between the driving coil and the first position sensor satisfies:
|50％L 1 －L 2 |＜20％L 1 ；
Wherein L is 1 L is the minimum distance between the top end of the driving coil and the first reference surface 2 Is the minimum distance between the center of the first position sensor and the first reference plane.
15. The camera focusing module according to claim 11, wherein the image circuit board is provided with a relay electrically connected with the driving coil;
when the driving coil is powered off, two ends of the driving coil can be conducted through the relay.
16. The camera focusing module according to claim 11, wherein the chip holder is provided with a butt-joint side wall, two sides of the butt-joint side wall are provided with sliding grooves extending along the extending direction of the optical axis, and a plurality of balls sequentially stacked along the extending direction of the optical axis are arranged in the sliding grooves; the chip seat slides relative to the shell through the ball.
17. The camera focusing module of claim 16, wherein the image circuit board has a second reference surface, the second reference surface is perpendicular to the extending direction of the optical axis, the second reference surface is flush with the top surface of the image circuit board, a part of the balls are located above the second reference surface, and a part of the balls are located below the second reference surface.
18. The camera focusing module according to claim 16, wherein the chip holder has a repulsive side wall facing the driving magnet, the repulsive side wall is provided with a repulsive magnet, and the repulsive magnet is disposed corresponding to the driving magnet.
19. The camera focusing module according to claim 1, further comprising a bottom cover, wherein the bottom cover is fastened to the bottom end of the housing, and a through hole from which the image circuit board extends is formed in a side wall of the bottom cover.
20. The camera focusing module according to claim 1, wherein the image circuit board further comprises a plurality of bending parts, the plurality of bending parts are stacked and connected in sequence along the extending direction of the optical axis, the bending part at the top end is connected with the movable part, and the bending part at the bottom end is connected with the immovable part.
21. An image pickup focusing method is characterized by comprising the following steps:
acquiring a target focal length of a photographic object;
determining target position information of the image chip according to the target focal length;
acquiring first position information of the image chip; acquiring second position information of the image chip;
Determining real-time position information of the image chip according to the first position information and the second position information;
confirming whether the real-time position information is matched with the target position information, if so, responding to a shooting instruction of a user, and executing shooting by using the target focal length; if not, carrying out the next step;
determining the moving stroke and moving direction of the image chip according to the first real-time position information and the target position information, and sending a driving electric signal;
repeating the above steps.
22. The image focusing method of claim 21, wherein the value a of the first position information and the value B of the second position information periodically change with the image chip activity, and the changes of a and B satisfy:
A＝Nsinα；
B＝Nsin(α+π/2)；
wherein N is a non-zero real number.
23. The method of claim 22, wherein the moving track of the image chip is divided into a plurality of subintervals corresponding to a and B, the controller determines the subinterval of the image chip at a certain moment according to a and B at a certain moment, and determines the real-time position information of the image chip according to the subinterval.
24. The image pickup focusing method according to claim 21, wherein determining real-time position information of the image chip further comprises the steps of:
Acquiring third position information of the image chip;
and determining the real-time position information of the image chip according to the first position information, the second position information and the third position information.
25. The method of claim 24, wherein the value C of the third position information varies monotonically with the image chip activity.
26. A terminal device comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the image pickup focusing method according to any one of claims 21 to 25 when executing the computer program.
27. A computer readable storage medium, characterized in that the computer readable storage medium comprises a stored computer program, wherein the computer program, when run, controls a device in which the computer readable storage medium is located to perform the image capturing focusing method according to any one of claims 21 to 25.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211218571.3A CN116132774A (en) | 2022-09-29 | 2022-09-29 | Camera focusing module, focusing method, terminal equipment and medium |
| PCT/CN2022/124396 WO2024065873A1 (en) | 2022-09-29 | 2022-10-10 | Camera focusing module, focusing method, terminal device and medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211218571.3A CN116132774A (en) | 2022-09-29 | 2022-09-29 | Camera focusing module, focusing method, terminal equipment and medium |
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| Publication Number | Publication Date |
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| CN116132774A true CN116132774A (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211218571.3A Pending CN116132774A (en) | 2022-09-29 | 2022-09-29 | Camera focusing module, focusing method, terminal equipment and medium |
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| CN (1) | CN116132774A (en) |
| WO (1) | WO2024065873A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI490630B (en) * | 2013-07-22 | 2015-07-01 | Tdk Taiwan Corp | Lens driving device and manufacturing method thereof |
| KR20200114251A (en) * | 2019-03-28 | 2020-10-07 | 엘지이노텍 주식회사 | camera device |
| CN211481353U (en) * | 2020-03-09 | 2020-09-11 | 信利光电股份有限公司 | Automatic focusing camera module |
| CN112752005B (en) * | 2020-12-30 | 2022-03-08 | 上海比路电子股份有限公司 | Driving device for moving image sensor sight zooming function |
| CN113014788A (en) * | 2021-04-29 | 2021-06-22 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN215344739U (en) * | 2021-05-18 | 2021-12-28 | 新科实业有限公司 | Camera device and optical anti-shake camera module thereof |
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- 2022-09-29 CN CN202211218571.3A patent/CN116132774A/en active Pending
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